Temperature control device for primary shaping or reshaping device for injection molding machine during production of DVD, has return element and/or coil spring that cause automatic return of lifting body during decreasing flow

The device has a rectangular monolithic fluid housing (3a) comprising two functional units provided with passage pieces arranged perpendicular to each other. A lifting body and/or its valve-closing body have flow deflection of 90 degrees in its lower part to enable fluid-velocity-based x-deflection of the lifting body. A return element and/or a coil spring cause automatic return of the lifting body during decreasing flow, where minimum overlap of greater than zero of a sensor shaft (5) is present at an upper part of the lifting body at any flow rate values.

Vorrichtung zum Herstellen und/oder Bearbeiten eines Gegenstandes

Vorrichtung zum Herstellen und/oder Bearbeiten eines Gegenstandes mittels eines Werkzeuges, insbesondere Spritzgiessmaschine mit Spritzgiesswerkzeug (5), mit einer Steuerungseinheit (16), die über Sensoren (11, 12.1 bis 12.3) Arbeitsabläufe erkennt, dadurch gekennzeichnet, dass die Steuerungseinheit (16) leicht lösbar in oder an der Vorrichtung angeordnet ist.

Gusswerkzeug, beispielsweise Kernschießwerkzeug oder Kokille, und ein entsprechendes Gießverfahren

Die Erfindung betrifft ein Gusswerkzeug (1), beispielsweise ein Kernschießwerkzeug oder eine Kokille, mit einem Werkzeugoberteil (2) und einem Werkzeugunterteil (3), die an gegenüber liegenden Seiten jeweils mindestens eine als Schalengravur (4) ausgebildete Gravur aufweisen und einen Formhohlraum (5) bilden, dadurch gekennzeichnet, dass die Schalengravur (4) an einer dem Formhohlraum (5) abgewandten Außenseite (6) mindestens einen physikalischen Sensor (7) aufweist, der dazu eingerichtet ist, eine physikalische Messgröße bezüglich eines in dem Formhohlraum (5) aufgenommenen Materials zu erfassen. Es wird weiterhin ein entsprechendes Gießverfahren beschrieben.

SPRITZGUSSINFORMATIONENVERWALTUNG-UNTERSTÜTZUNGSVORRICHTUNG UND SPRITZGUSSMASCHINE

Für das einfache Prüfen eines Änderungstrends von Maschinenzustandsdaten an einer Spritzgussmaschine während einer vorbestimmten Periode und/oder in jeder vorbestimmten Periode enthält eine Spritzgussinformationenverwaltung-Unterstützungsvorrichtung für das Verwalten von Maschinenzustandsdaten in Bezug auf einen Maschinenzustand im Betrieb einer Spritzgussmaschine während einer vorbestimmten Periode und/oder in jeder vorbestimmten Periode eine Maschinenzustandsdaten-Erhaltungseinheit, die einen Maschinenzustandsdatenwert für jeden Gusszyklus in der Spritzgussmaschine erhält, und eine Häufigkeitsverteilungsdaten-Aufzeichnungseinheit, die den Maschinenzustandsdatenwert zu einem vorgegebenen Klassendatenwert wandelt und den Klassendatenwert in einer Speichereinheit aufzeichnet.

Spulenträger mit Heizspule.

Electrical standard arrangement for heating body of multiple nozzles and hot channel distributor sections of injection-molding installation, has heating body parts that are supplied over individual controlling element

The electrical standard arrangement has a heating body (2a,2b) of multiple nozzles and hot channel distributor section. A or all part of the heating body of a group of heating elements are supplied over an individual controlling element (4,4a), where controlling element on its part supplying the group of heating elements from an associated heating controller. The temperature measuring device (6) of the associated heating controller is attached at a selected heating body and hot channel distributor section of the associated group of heating body.

Method for recording axial temperature profile of material in a reciprocating screw pump, especially an injection molding machine

A sensor (2) in the cylinder wall (4) measures the temperature of the passing material and an additional sensor (9) records pressure changes. Both signals are fed to an analyzing unit which compensates for the influence of the compression heating arising from pressure variation. An artificially created pressure change may be used in addition to the normal process pressure change to determine the level of compression heating.

Schutzabdeckung für einen Plastifizierzylinder

Schutzabdeckung (1) für einen Plastifizierzylinder (2) einer Formgebungsmaschine, mit einem durch wenigstens eine Wand (3a, 3b, 3c) umschlossenen, längserstreckten Innenraum (4), in welchem der Plastifizierzylinder (2) anordenbar ist, wobei ein Klemmkasten (5) für am Plastifizierzylinder (2) angeordnete Heizbänder (6) in den Innenraum (4) hineinragt und eine der Wände (3a, 3b, 3c) der Schutzabdeckung (1) eine durch einen öffenbaren Deckel (7) verschlossene Öffnung (8) aufweist, die im geöffneten Zustand den Zugriff auf den Klemmkasten (5) oder das Innere des Klemmkastens (5) gestattet.

Formsystem mit trennbaren, variablen Formteilen zur Bildung eines Gussgegenstands für den Feinguss

Es sind ein Formsystem (100, 200) und ein Verfahren zur Bildung eines Gussgegenstandes (102) für den Feinguss offenbart. Das Formsystem (100, 200) enthält eine Form (110, 210) zur Aufnahme eines ausgewählten Kerns (112, 112A, 112B) darin, der aus mehreren unterschiedlichen Kernen (112, 112A, 112B) ausgewählt wird. Die Form (110, 210) enthält mehrere trennbare Formteile (120A-F), die miteinander verbindbar sind, um die Form (110, 210) zu erzeugen, und eingerichtet sind, um ein Opfermaterial (130) aus einem Opfermaterialfluid um den ausgewählten Kern (112, 112A, 112B) zu bilden. Wenigstens ein ausgewählter trennbarer Formteil (120A-F) der mehreren trennbaren Formteile (120A-F) enthält einen Satz unterschiedlicher austauschbarer Varianten des wenigstens einen ausgewählten trennbaren Formteils (120A-F, 120K-N). Jede unterschiedliche austauschbare Variante des ausgewählten trennbaren Formteils (120A-F, 120K-N) ist eingerichtet, um einen anderen Kern (112, 112A, 112B) der mehreren unterschiedlichen ...

DATENERFASSUNGS- UND STEUERSYSTEM FÜR SPRITZGIESSFORMEN

Verfahren zum Herstellen von Spritzlingen, Spritzgießvorrichtung, Computerprogramm und Datenträger mit Computerprogramm

Die Erfindung befasst sich mit Verbesserungen auf dem technischen Gebiet der Herstellung von Spritzlingen (12). Hierzu wird unter anderem ein Verfahren zur Herstellung von Spritzlingen (12) vorgeschlagen, bei dem eine Spritzgießvorrichtung (1) zum Einsatz kommt. Mithilfe wenigstens eines Sensors (3, 11, 13, 16) der Spritzgießvorrichtung (1) wird ein Betriebszustand der Spritzgießvorrichtung (1) und/oder eine Qualität von der mit der Spritzgießvorrichtung (1) hergestellten Spritzlingen überwacht. Mithilfe der Regeleinheit (2) der Spritzgießvorrichtung (1) wird autonom eine Reaktion ausgelöst, wenn der Betriebszustand der Spritzgießvorrichtung (1) und/oder die Qualität der Spritzlinge (12) außerhalb eines Toleranzbereichs liegt/liegen und/oder einen Sollzustand erreicht/erreichen ...

ANLAUFVERFAHREN FÜR DIE HEIZUNG EINES FORMWERKZEUGES

Multiple zone temperature controller includes printed circuit board card with ports for receiving temperature signals from thermocouples and driving the heating elements, and multiplexer for selecting the temperature signals

A multiple zone temperature controller includes printed circuit board (PCB) card with input ports for receiving temperature signals from thermocouples and with two output ports for driving the heating elements; multiplexer for selecting the temperature signals; and processor for outputting a heater control signal in response to the selected temperature signal and a preset value. A multiple zone temperature controller comprises PCB card having at least two input ports each for receiving temperature signals from one of the thermocouples and having at least two output ports each for driving the heating elements; multiplexer coupled to the input ports for selecting one of the temperature signals; processor mounted on the PCB card and having an input pin for receiving the selected temperature signal from the multiplexer and outputting a heater control signal in response to the selected temperature signal and a preset value; power switching stages, each power switching stage being coupled to ...

METHOD AND APPARATUS FOR CONTROLLING INJECTION MOLDING MACHINES

Mould temperature control

In a cyclical injection moulding process wherein the flow of heating and cooling fluids around the mould 8 is controlled by a number of valves 12 a, b, c, d, the particular spatial distribution of fluid required for a particular mould and conduit arrangement is determined and the flow control valves 12 a, b, c, d are actuated to produce this distribution. The valve opening times are modified to take account of a deviation from a target value of the temperature of the mould measured at specific times during the cycle whilst maintaining the required spatial distribution. Servo control of the flow in each of the fluid conduits 11 a, b, c, d can be employed. ...

System and method for rapidly heating and cooling a mold

A portable mold-temperature control unit includes a local heating system, a first fluid duct, a second fluid duct, and a fluid exchange system. The local heating system includes a local heater for heating fluid that is used to rapidly heat a mold. The first fluid duct carries hot fluid heated by the local heating system. The second fluid duct carries cool fluid that is used to rapidly cool a mold. The fluid exchange system includes an outlet that permits fluid to flow from the first and second fluid ducts to the mold during heating and cooling, respectively. The fluid exchange system also includes an inlet that receives the fluid as it returns from the mold. In one embodiment, the heating system reheats the fluid returning from the mold and reuses it to heat the mold again. In a more particular embodiment, the heating system includes a steam generator that generates steam used to heat the mold. In another embodiment, the portable mold-temperature control system includes a local cooling ...

System and method for rapidly heating and cooling a mold

DIGITALE REGELANORDNUNG FUR EINEN DRUCKMITTELBETATIGTEN ARBEITSZYLINDER EINER SCHNECKENSPRITZGIESSMASCHINE

TEMPERATURE-DEPENDENT RELEASING FROM FORM

Spraying casting system WITH a BUS

TEMPERATURE SENSOR WITH MACHINABLE FRONT

VERFAHREN ZUR WERKZEUGTEMPERIERUNG FÜR DIE FORMWERKZEUGE VON SPRITZGIESSMASCHINEN

METHOD FOR THE QUALITY CONTROL AND/OR TRACKING OF AN INJECTION MOLDED PART PRODUCED IN A PRODUCTION CYCLE, AND PLASTIC INDUSTRIAL FACILITY FOR THIS PURPOSE

Die Erfindung betrifft ein Verfahren zur Qualitätskontrolle und/oder Nachverfolgung eines in einem Produktionszyklus mit vorzugsweise zumindest einer Verarbeitungsmaschine (4) der kunststoffverarbeitenden Industrie hergestellten Spritzgiessteils (3), sowie einer Kunststoffverarbeitungsanlage, bei der vor- und/oder nachgeschalteten Produktionsmitteln oder Geräten (31) oder Stationen (31) vorzugsweise über ein Netzwerk (49) miteinander verbunden sind. Dabei wird jedem einzelnen Spritzgiessteil (3) oder einer bestimmten Anzahl (Charge 65) von Spritzgießteilen (3) ein Qualitätsbeitrag (33) zugewiesen, der sich aus mehreren Qualitätsbeiträgen (33a bis 33L) zusammensetzt, indem jedes Gerät (31) oder Station (31) in der Produktionskette, seinen eigenen Qualitätsbeitrag (33a bis 33L) ermittelt bzw. erzeugt und um den oder die übermittelten Qualitätsbeiträge (33a bis 33L) der jeweiligen Vorgänger-Geräte (31) bzw. Vorgänger-Stationen (31) erweitert und diesen als neuen Qualitätsbeitrag (33, 33a bis ...

Plastifiziereinheit für eine Formgebungsmaschine

Plastifiziereinheit (1) für eine Formgebungsmaschine (2), umfassend - einen sich axial erstreckenden Plastifizierzylinder (3) mit einer Plastifizierzylinderbohrung (4) zur Aufnahme einer Plastifizierschnecke (5), - eine in der Plastifizierzylinderbohrung (4), insbesondere verschiebbar und drehbar, angeordnete Plastifizierschnecke (5) und - wenigstens einen, insbesondere mit einem Kabel (6) verbundenen, Sensor (7), wobei der wenigstens eine Sensor (7) in wenigstens einer von der Plastifizierzylinderbohrung (4) in radialer Richtung (8) räumlich gesonderten und im Wesentlichen achsparallelen Öffnung (9) angeordnet ist.

Verfahren zum Dosieren von Kunststoffgranulat

A method of influencing the melt temperature in the plasticizing cylinder of a plasticizing unit (1) for an injection molding machine having a plasticizing screw (4) arranged rotatably and displaceably in a cylinder bore of an axially extending plasticizing cylinder, wherein metering of plastic granular material fed to the plasticizing unit (1) is effected in dependence on a desired melt temperature in the plasticizing unit (1).

Method for determining a state of a gas solution

Verfahren zum Bestimmen eines Lösungszustands eines Gases in einer in einem Kunststoffformgebungsverfahren verwendeten Kunststoffschmelze (2), wobei die Verfahrensschritte (i) die Kunststoffschmelze (2) wird zusammen mit dem Gas in einer Kammer (4) bereitgestellt, (ii) durch Verringerung eines Volumens der Kammer (4) wird ein Druck der Kunststoffschmelze zusammen mit dem Gas von einem ersten Druckwert auf einen zweiten Druckwert erhöht, (iii) die Kunststoffschmelze (2) wird in eine Formgebungskavität (5) eingebracht und (iv) aus dem ersten Druckwert und dem zweiten Druckwert wird zumindest ein für das Kompressionsverhalten der Kunststoffschmelze (2) charakteristischer Kompressionsparameter, insbesondere ein Kompressionsmodul (K), berechnet, durchgeführt werden. Zusätzlich wird (v) aus dem zumindest einen Kompressionsparameter bestimmt, ob das Gas in der Kunststoffschmelze (2) im Wesentlichen vollständig gelöst ist, und/oder aus dem zumindest einen Kompressionsparameter eine Löslichkeitsgrenze ...

PROCEDURE FOR THE TOOL TEMPERING FOR THE FORMING TOOLS OF INJECTION MOULDING MACHINES

PROCEDURE FOR MEASURING AND RULES OF THE TEMPERATURE AS WELL AS DEVICE FOR THE PRODUCTION OF SPRITZGUSSTEILEN WITH HEATED ONES AND/OR COOLING AS WELL AS TEMPERATURE-CONTROLLED ONE MELT SUPPLY LINES

Verfahren zur Temperierung eines Formwerkzeugs

A temperature control device (14) for a shaping tool (3) or component of a shaping working machine comprising at least one temperature control branch (2, 2) connected to a feed (5), and a pump system including at least one pump (13) for the delivery of temperature control medium in the feed (5), wherein there is provided at least one sensor by which at least one of the parameters from the group of temperature, through-flow amount and pressure can be detected and that there is provided a control or regulating device for regulating or controlling a delivery of the pump system, to which signals from the at least one sensor can be fed. A method of operating such a device is also described.

Plastifiziereinheit für eine Spritzgießmaschine

A plasticizing unit (1) for an injection molding machine having a plasticizing screw (4) arranged rotatably and displaceably in a cylinder bore of an axially extending plasticizing cylinder, wherein a screw prechamber (3) is arranged between an injection nozzle of the plasticizing cylinder and a screw tip of the plasticizing screw (4), wherein a plurality of ultrasound transducers (5) is arranged at different axial positions of a wall (2) of the plasticizing cylinder and there is provided an evaluation unit (8) which is adapted to produce an axial temperature profile in the screw prechamber (3) from signals from the ultrasound transducers (5).

Protective cover for a plasticizing cylinder

Schutzabdeckung (1) für einen Plastifizierzylinder (2) einer Formgebungsmaschine, mit einem durch wenigstens eine Wand (3a, 3b, 3c) umschlossenen, längserstreckten Innenraum (4), in welchem der Plastifizierzylinder (2) anordenbar ist, wobei ein Klemmkasten (5) für am Plastifizierzylinder (2) angeordnete Heizbänder (6) in den Innenraum (4) hineinragt und eine der Wände (3a, 3b, 3c) der Schutzabdeckung (1) eine durch einen öffenbaren Deckel (7) verschlossene Öffnung (8) aufweist, die im geöffneten Zustand den Zugriff auf den Klemmkasten (5) oder das Innere des Klemmkastens (5) gestattet.

Plastifiziereinheit für eine Spritzgießmaschine

A plasticizing unit (1) for an injection molding machine having a plasticizing screw (4) arranged rotatably and displaceably in a cylinder bore of an axially extending plasticizing cylinder, wherein a screw prechamber (3) is arranged between an injection nozzle of the plasticizing cylinder and a screw tip of the plasticizing screw (4), wherein a plurality of ultrasound transducers (5) is arranged at different axial positions of a wall (2) of the plasticizing cylinder and there is provided an evaluation unit (8) which is adapted to produce an axial temperature profile in the screw prechamber (3) from signals from the ultrasound transducers (5).

PRINTED CIRCUIT BOARD FOR SPRAYING CASTING SYSTEM

SPRITZGIESSMASCHINE

Injection molding machine with a mold that can be opened and closed, into the mold cavity of which a fluid molding compound, preferably plastic, can be injected, and with at least one reading device ( 12 ) for at least one transponder ( 13 ) arranged in the mold cavity ( 4 ).

PROCEDURE AND DEVICE FOR THE TEMPERATURE CONTROL, FOR EXAMPLE WITH SPRAYING CASTING EQUIPMENT FOR PLASTICS

PRODUCTION OF MULTILEVEL VORFORMLINGEN WITH PET WASTE

Device for regulating the temperatures of an electrically heatable cylinder of a Schneckenplastiziervorrichtung

PROCEDURE FOR THE CONTROLLING OF AN INJECTION MOULDING MACHINE BY REDUCTION OF DIFFERENCES OF THE PLASTIC MELT DENSITY

TEMPERATURE CONTROL SYSTEM, PROCEDURE AND DEVICE

Nozzle shut off for injection molding system

NOZZLE SHUT OFF FOR INJECTION MOLDING SYSTEM A method of molding a part, comprising: rotating a screw (104) within a barrel (402) to extrude a molten material through a nozzle opening of a nozzle (708) into a mold cavity; and after extruding the molten material through the nozzle opening, inserting a cylindrical tip portion (202) of the screw (104) corresponding in geometry to the nozzle opening into the nozzle opening along an entire axial length of the nozzle opening to displace all of the molten material from the nozzle opening.

Injection mold mounted process control and data acquisition apparatus

CONNECTION ERROR DETECTION AND RESPONSE

In an electrical apparatus wherein electrical devices are interconnected by coupling connectors and a desired interconnection of devices is achieved by an intended interconnection of mating components of coupling connectors, identification elements in one mating component of each connector produce identification signals representing identity of the mating component. Decoding means responsive to the identification signals produce an error signal representing an interconnection of connector components differing from the intended interconnection and, means responsive to the error signal effects a response when the actual interconnection of components differs from the intended interconnection of components. Responses are, advantageously, activation of an error indicator, inhibition of application of power to affected devices, or, with program controlled systems, display of a text error message, facilitation of user intervention for error correction, or automated re-programming to overcome interconnection ...

METHOD AND APPARATUS FOR RESIN TRANSFER MOLDING COMPOSITE PARTS

A composite fabrication apparatus (1) which may include a first tooling die (3) and a second tooling die (9) movable with respect to each other; a temperature control system (27) having induction coils (26) disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor (20) provided on the first tooling die and a second die susceptor (21) provided on the second tooling die and connected to the induction coils (26); and a cooling system (14) disposed in thermal contact with the first tooling die and the second tooling die. A resin transfer system (55) delivers resin from a resin source to the tooling dies to allow resin transfer molding. A composite fabrication method is also disclosed.

PLASTIC INJECTION MOLDING SYSTEM WITH MULTIPLE TIP TORPEDO HEATER

A plastic injection molting system having a plurality of multiple tip torpedo heaters which each have a casing with a pair of opposed tips disposed in respective sprue passageways in a mold. An unsheathed electrical heating element is disposed in an internal bore of the casing at each tip and heat transmitting material is compacted in the bore in surrounding relation to the heating element for electrically insulating each heating element from the casing and filling all air voids between the casing and heating element to effect direct heat transfer to the casing. Electrical leads couple the plurality of heating elements to a power source to permit independent temperature control of the individual heating elements and the exposed surfaces of the respective casing tips over which fluid plastic material is directed.

CLOSED LOOP INTERACTIVE CONTROLLER

An injection mold apparatus (10) has multiple injection zones, each zone having at least one heater and at least one temperature sensor generating a temperature indicating signal. A power source provides power to the heaters. A controller (22) controls the temperature of at least some of the zones. For efficiency, the controller has two separate processors, a data-receiving processor for receiving temperature indicating signal from each sensor as well as power signals, and a control processor for receiving data from the data- receiving processor and for controlling the amount of power provided to the heaters. Preferably, the control is in a housing (30), with the housing mounted directly on the mold. Modified PID calculations are utilized. Power calculations for the amount of power to the heaters utilizes a modulo based algorithm.

METHOD AND APPARATUS FOR MEASURING THE TEMPERATURE OF MOLTEN MATERIAL IN A MOLD CAVITY

An injection molding apparatus comprises a manifold having a manifold channel for receiving a melt stream of molten material under pressure and delivering the melt stream to a nozzle channel of a nozzle. A mold cavity receives the melt stream from the nozzle and the nozzle channel communicates with the mold cavity through a mold gate. A thermocouple is coupled to the mold core of the mold cavity in order to measure the temperature of the molten material in the mold cavity.

MANUFACTURING METHOD AND MANUFACTURING APPARATUS FOR PRESSURE TANK

A manufacturing method for a pressure tank includes disposing a preform, in which a fiber layer is formed on an outer surface of a liner that forms an internal space of a pressure tank, within a mold, and rotating the preform in a circumferential direction within the mold with a central axis of the preform as a rotation center while resin is injected toward the preform disposed within the mold from a gate.

SYSTEMS AND METHODS FOR AUTOTUNING PID CONTROL OF INJECTION MOLDING MACHINES

A variable-gain proportional-integral-derivative (PID) controller is utilized to control one or more of the process variables. The injection molding system includes a tuning controller to automatically tune at least one of the proportional, integral, or derivative gains within a mold cycle. The tuning controller obtains sensor data that monitors the operation of the injection molding machine to determine an adjustment to at least one of the proportional, integral, or derivative gains. The tuning controller adjusts the gains of the variable-gain PID controller in accordance with the determined adjustment to the at least one of the proportional, integral or derivative gains.

CONTROL SCHEMA OF MOLDING-SYSTEM PROCESS, AMONGST OTHER THINGS

Disclosed is: (i) a method of controlling a molding system, (ii) a moldin g system, (iii) a controller of a molding system, (iv) an article of manufac ture of a controller of a molding system and/or (v) a network-transmittable signal of a controller of a molding system.

METHOD OF INJECTION MOLDING USING ONE OR MORE EXTERNAL SENSORS AS A VIRTUAL CAVITY SENSOR

A injection molding method involves measuring, using at least one external sensor, a change in a parameter of a mold side of a mold cavity, approximating a condition within the mold cavity based on the change in the parameter, such as pressure within the mold cavity or flow front position, and comparing the approximated condition to a trigger point,. If the approximated condition equals or exceeds the trigger point, activating a virtual cavity sensor having an optimal pre-defined pressure-time curve, and upon activation, the virtual cavity sensor tracks an approximated condition calculated from the change in parameter measurements measured by the at least one external sensor over time. In an embodiment, results of the approximated parameter tracking can be used in conjunction with an optimal pre-defined pressure-time curve.

NOZZLE SHUT OFF FOR INJECTION MOLDING SYSTEM

An injection molding apparatus and method of fabricating a molded part are provided. The apparatus may include a barrel, a nozzle enclosing an end of the barrel and defining an opening in fluid communication with an inside of the barrel, and an extrusion screw positioned at least partially inside the barrel and rotatable relative to the barrel. The extrusion screw may include a screw tip. Relative axial movement between the barrel and the extrusion screw may open or close the opening of the nozzle to permit or prevent, respectively, material flow through the opening of the nozzle. The method may include clamping a mold, opening a nozzle, rotating the extrusion screw to pump a molten material into the mold until the mold is filled, closing the nozzle, and unclamping the mold to release a molded part.

AN APPARATUS FOR CONTROLLING MELT FLOW IN A MELT DISTRIBUTION NETWORK

According to embodiments of the present invention, there is provided an a pparatus (502) for controlling melt flow through a portion of the melt distr ibution network. A flow control device (502) is provided. The flow control d evice (502) comprises a body (504) defining: a mixer (506) configured to be positioned in a conduit for providing a path of flow for melt such that the mixer (506) traverses substantially the whole cross-section of the path of f low; a temperature control portion (514) associated with the mixer (506) for actively controlling temperature of the mixer (506).

INJECTION MOLDING PROCESS AND PRODUCT PRODUCED USING THE SAME

A method of molding a solid article such as a syringe with zero draft or very low draft is disclosed. The method includes heating a low draft mold to expand it, then injection molding the part, followed by cooling at least part of the low draft mold element to thermally contract at least a portion of the low draft element away from the solid low draft formed surface sufficiently to release the low draft element from the low draft formed surface. Syringes and other articles formed by this method are also disclosed having and interior draft angle of 0 to 0.5 degrees, optionally at least substantially zero degrees. The syringe plunger can be selectively coated with lubricity coatings and other functional coatings to improve performance of the syringe.

INJECTION MOLDING PROCESS AND PRODUCT PRODUCED USING THE SAME

A method of molding a solid article such as a syringe with zero draft or very low draft is disclosed. The method includes heating a low draft mold to expand it, then injection molding the part, followed by cooling at least part of the low draft mold element to thermally contract at least a portion of the low draft element away from the solid low draft formed surface sufficiently to release the low draft element from the low draft formed surface. Syringes and other articles formed by this method are also disclosed having and interior draft angle of 0 to 0.5 degrees, optionally at least substantially zero degrees. The syringe plunger can be selectively coated with lubricity coatings and other functional coatings to improve performance of the syringe.

THERMOCONTROL METHOD FOR AN INJECTION MOLDING MACHINE

To eliminate a temperature overshoot or an undershoot during thermocontrol of thermocontrolled components, e.g. an injection cylinder, with respect to an object temperature in each operating status of the injection molding machine, the Fuzzy Control theory is used for controlling the injection molding machine. By using the Fuzzy Control theory, the object temperature of the thermocontrolled components can be attained with practically eliminated overshoot and undershoot.

Printed Circuit Board for Injection Molding System

BARREL TEMPERATURE STATE CONTROLLER FOR INJECTION MOLDING MACHINE

An improved temperature control system using a state controller with two degrees of freedom to regulate the temperature of the barrel of an injection molding machine is disclosed. The control system divides the temperature of the barrel into longitudinally-extending zones and radially extending layers within each zone. Heat transfer calculations which include the effects of heat transfer between all the layers within the zones are performed for a set time in the future to accurately determine the heat needed from the heater band to reach the operator set point temperature. The duty cycle for the heater bands is thus accurately set to give a more responsive and accurate control than heretofore possible. The controller additionally includes factors for accounting for heat disturbances present in the injection molding process. In addition each system is calibrated for each machine to insure accurate formulation of machine specific parameters such as heat transfer co-efficients used in the ...

CLAMP CONTROL FOR INJECTION MOLDING MACHINE

A control system utilizing a programmable controller for an injection molding machine in which the controller is periodically scanned in response to input signals to produce output control signals is provided with an impulse response filter arrangement. The impulse response filter senses a plurality of current and past sensor input signals to accurately predict the occurrence of a variable triggering event which will in fact be sensed by a sensor. A predictive sensor signal is then generated which is inputted to the controller in advance of the occurrence of the triggering event and at a time which corresponds to the processor scan time so that the controller generates the desired output at the precise time the triggering event occurs thus eliminating controller response latency from the control system.

MOLD HEATER STARTUP METHOD

A method for mold heater startup and sequencing detects the heater zones associated with greater mass and allows them to heat up before zones of lesser mass, thereby reducing wear of the associated mechanical components and minimizing degradation of plastic material. The zones of smaller mass are kept at minimal temperatures until the zones with greater mass reach a set point. The system is capable of detecting multiple levels of thermal load and provides appropriate sequentia l startup of the identified thermal loads. The operator may also manually program the system to override certain automated sequences in order to ensure an optimal startup sequence. The sequencing of power application to large heaters also minimizes the peak current draw of t he system.

Verfahren und Vorrichtung zur Temperaturregelung bei Druck- und Spritzgiessmaschinen

Plastics injection moulding machine temp - control

The temp. of a plastics mass plasticised by the screw of an injection moulding machine is controlled during its return in the screw barrel. The development of the pressure, deduced by comparing the actual with the nominal temp., is used for changing the pressure to affect the temp. of the mass in the barrel before the screw has conveyed material into it.

Druckgussmaschine mit Säulen und Formenkühleinrichtung

Plastics injection moulding machine temp - control

The temp. of a plastics mass plasticised by the screw of an injection moulding machine is controlled during its return in the screw barrel. The development of the pressure, deduced by comparing the actual with the nominal temp., is used for changing the pressure to affect the temp. of the mass in the barrel before the screw has conveyed material into it.

Einrichtung zum Einstellen und Regeln der Temperaturen einer Schneckenplastizierzylinderbeheizung für das Verarbeiten wärmehärtbarer Massen, insbesondere in Spritzgiessmaschinen

HOT CHANNEL SPRAYING CASTING PLANT.

Method for tempering a molding tool a shaping working machine.

Verfahren zur Temperierung eines Formwerkzeugs (3) einer formgebenden Arbeitsmaschine mittels eines in wenigstens einem Temperierzweig (2) eines Temperiersystems befindlichen Temperiermediums, wobei ein vorermittelter Zusammenhang zwischen Geometriedaten des wenigstens einen Temperierzweigs (2) und Durchflussmengen des Temperiermediums bereitgestellt wird und mittels des vorermittelten Zusammenhangs für die Geometriedaten des wenigstens einen Temperierzweigs (2) eine Soll-Durchflussmenge eingestellt wird. Beschrieben wird auch eine entsprechende Steuer- oder Regeleinrichtung.

A shaping mold method for tempering a working machine.

Verfahren zur Temperierung eines Formwerkzeugs (3) einer formgebenden Arbeitsmaschine mittels eines in wenigstens einem Temperierzweig (2) eines Temperiersystems befindlichen Temperiermediums, wobei ein vorermittelter Zusammenhang zwischen Geometriedaten des wenigstens einen Temperierzweigs (2) und Durchflussmengen des Temperiermediums bereitgestellt wird und mittels des vorermittelten Zusammenhangs für die Geometriedaten des wenigstens einen Temperierzweigs (2) eine Soll-Durchflussmenge eingestellt wird. Beschrieben wird auch eine entsprechende Steuer- oder Regeleinrichtung.

Determination of optimum mold opening time for molding of foamed thermosetting parts uses predetermined reference value of pressure gradient against time

The time at which a mold can be safely opened when molding foamed parts is determined by measuring the change in pressure during the molding process. The gradient of the graph of pressure against time gradually decreases and is compared with a predetermined reference value known to be safe. The mold can be opened when this has been reached. An independent claim is included for the equipment required for this process. The pressure gradient can be measured directly or inferred by calculation. The sensor is sufficiently robust for temperatures of about 200 [deg]C and pressures of 1 to 20 bar. Preferably a static sensor should have a membrane at least 0.2 mm thick.

Procedure for the regulation of the hot channel heating of a multi-cavity spraying casting tool.

PROCEDURE FOR DETECTING INSERT OBJECTS IN A SPRITZGUSSTEIL.

Die Erfindung betrifft ein Verfahren zum Detektieren eines Einlageobjektes (1, 8) in einem Spritzgussteil, wobei das Einlageobjekt (1, 8) beim Spritzgiessen fest mit dem Spritzgussteil verbunden wird, indem das Einlageobjekt (1, 8) vor Beginn des Spritzgiesszyklus in eine Kavität (3) eingelegt wurde, welche von einer Werkzeugwand (4) eines Werkzeugs (5) umgeben ist. Erfindungsgemäss ist in der Werkzeugwand (4) mindestens ein Sensor (6, 7) angebracht, welcher während einem Spritzgiesszyklus zu mindestens einem Zeitpunkt mindestens einen Messwert erfasst und analysiert. Auf Grund der Analyse wird festgestellt, ob während dem Spritzgiesszyklus ein Einlageobjekt (1) an einer bestimmten Stelle in der Kavität (3) vorhanden war. Schliesslich wird das Spritzgussteil nach dessen Auswurf auf Grund der Analyse des Messwertes als Gutteil oder Ausschussteil sortiert.

A method of manufacturing a timepiece component elastomer comprising a metal insert.

L’invention concerne un procédé de fabrication d’un composant horloger comprenant: une première étape (E1) consistant à disposer un insert métallique dans un moule d’injection, une surface dudit insert métallique étant au moins partiellement revêtue d’un primaire, une deuxième étape d’injection (E2) d’un matériau élastomère dans le moule d’injection pour surmouler le matériau élastomère sur l’insert métallique, une troisième étape de vulcanisation (E3) du matériau élastomère, caractérisé en ce que la température du moule d’injection est variable, le procédé comprenant une étape d’augmentation (E31) de la température du moule d’injection entre une première température à un premier instant durant la deuxième étape d’injection (E2), et une deuxième température supérieure à la première température à un deuxième instant, durant la troisième étape de vulcanisation (E3).

Method and apparatus for the production of spray products, especially - brush or toothbrush bodies.

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung von Spritzlingen, insbesondere von Bürsten- oder Zahnbürstenkörpern. Hierzu wird eine Vorrichtung (6) zur Herstellung von Spritzlingen vorgeschlagen, mit zumindest einer ersten Spritzgiessform (7) zum Spritzgiessen eines Vorspritzlings aus wenigstens einer ersten Materialkomponente und mit zumindest einer weiteren Spritzgiessform (8), in der eine weitere Materialkomponente an oder um den Vorspritzling spritzbar ist. Die Vorrichtung (6) weist zumindest eine Kühlvorrichtung (9) auf, in der Vorspritzlinge vor dem Spritzgiessen einer weiteren Materialkomponente abgekühlt werden.

Injection molding process for the preparation of injection articles, in particular brush bodies, use a sensor on an injection mold and injection molding machine.

Die Erfindung betrifft ein Spritzgiessverfahren zur Herstellung von Spritzlingen, insbesondere von Bürstenkörpern, eine Verwendung eines Sensors an einer Spritzgiessform und eine Spritzgiessmaschine. Hierzu wird ein Spritzgiessverfahren vorgeschlagen, bei dem in einem ersten Spritzgiessschritt wenigstens eine erste Materialkomponente (17) in einen Formhohlraum (4) einer Spritzgiessform (3) eingespritzt wird. Der erste Spritzgiessschritt wird dann beendet, wenn eine auf ein im ersten Spritzgiessschritt eingespritztes erstes Materialvolumen bezogene Bedingung erfüllt ist. Bei dieser Bedingung kann es sich beispielsweise um einen Mindestfüllstand handeln, den ein in dem ersten Spritzgiessschritt in den Formhohlraum (4) eingespritztes Materialvolumen aus der zumindest einen ersten Materialkomponente (17) in dem Formhohlraum (4) verursacht. Kann der Mindestfüllstand zum Beispiel mit Hilfe eines Sensors (10) detektiert oder bestätigt werden, kann der erste Spritzgiessschritt beendet und gegebenenfalls ...

Method for operating a device for manufacturing a product, computer program product and device for producing a product.

Es ist ein Verfahren zum Betreiben einer Vorrichtung zur Herstellung eines Produktes beschrieben, welches die folgenden Schritte umfasst: Erfassen von zumindest einem Qualitätsdatensatz (10, 10') umfassend Messwerte eines oder mehrerer Qualitätsparameter, die je einer Eigenschaft des Produktes entsprechen; Erfassen von zumindest einem zugehörigen Maschinendatensatz (20, 20') umfassend Realwerte von einem oder mehreren Maschinenparametern der Vorrichtung; zeitliches Zuordnen des Qualitätsdatensatzes (10, 10') zum Maschinendatensatz (20, 20') und Generieren eines ersten Datensatzes (30) umfassend zeitlich korrelierte Messwerte und Realwerte; mindestens einmaliges Wiederholen der vorangegangenen Schritte zum Generieren wenigstens eines zweiten Datensatzes (30'); Bestimmen einer Korrelation (40) zwischen dem oder den Qualitätsparametern und dem oder den Maschinenparametern durch Vergleich der erfassten Datensätze (30, 30') und Bereitstellen eines Sollwertes für zumindest einen Maschinenparameter ...

Method and device for ensuring the operation of a circuit.

Die Einrichtung weist einen Hauptkreislauf (I) auf, welcher einen Verbraucher (99), eine Kreislaufheizung (2) sowie eine Pumpe (m10) umfasst. Wasser dient in diesem Kreislauf als Arbeitsmedium. Die Einrichtung weist ferner eine Vorrichtung (5) zur Konstanthaltung von Druck im Wasser des Kreislaufs (I) auf. Diese Druckhaltevorrichtung (5) enthält einen Behälter (10), in welchem sich eine Heizvorrichtung (E27) befindet. Das Innere des Behälters (10) des Druckhalters (5) ist an das Innere des Hauptkreislaufs (I) mit Hilfe eines Rohrstückes (27) fluidmässig angeschlossen. Der Behälter (10) des Druckhalters (5) befindet sich oberhalb der Kreislaufheizung (2). Das Volumen des Behälters (10) des Druckhalters (5) ist kleiner als das Volumen des Hauptkreislaufs (I).

Method and apparatus for resin transfer molding composite parts

A composite fabrication apparatus (1) which may include a first tooling die (3) and a second tooling die (9) movable with respect to each other; a temperature control system (27) having induction coils (26) disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor (20) provided on the first tooling die and a second die susceptor (21) provided on the second tooling die and connected to the induction coils (26); and a cooling system (14) disposed in thermal contact with the first tooling die and the second tooling die. A resin transfer system (55) delivers resin from a resin source to the tooling dies to allow resin transfer molding. A composite fabrication method is also disclosed.

Apparatus and method for checking a state of a machine part, and shaping machine including apparatus

Injection moulding machine control device with force transmitting part and temperature management function

The invention provides an injection moulding machine control device with a temperature management function and a force transmitting part, which can transmit the driving force from the driving part to the movable part. The control device is used to detect physical parameters related with the calorific value of the force transmitting part, is capable of determining the temperature of the force transmitting part according to the detected physical parameters, and automatically controls the temperature of the force transmitting part within a preset temperature range.

Heating device based on injection molding equipment

In the injection molding machine control method for the temperature of the thermoplastic resin

Process of temperature control for a machine of moulding by injection

Dans le but d'éliminer un dépassement de température positif ou négatif pendant la régulation de température de composants tels par exemple qu'un cylindre d'injection (1), en relation avec une température de consigne dans chaque état de fonctionnement d'une machine de moulage par injection (M), on utilise la théorie de la Commande Floue pour commander la machine d'injection. En employant un système basé sur cette théorie, on peut atteindre la température de consigne des composants dont la température est régulée, en éliminant pratiquement un dépassement de température positif ou négatif.

음료컵 제조장치 및 이를 통해 제조되는 음료컵

... 본 발명은 음료컵 제조장치 및 이를 통해 제조되는 음료컵에 있어서, 특히 일정한 열 공급이 이루어진 상태에서 사출에 의해서 양질의 음료컵을 생산할 수 있도록 구성한 것을 특징으로 하는 음료컵 제조장치 및 이를 통해 제조되는 음료컵에 관한 것으로, 미리 프로그램된 내용에 따라 일련의 과정을 진행하여 음료컵을 사출시키는 사출장치(10)와; 상기 사출장치와 통신하고 사출에 관련된 각종 가공 데이터를 실장하여 사출장치에 전달하고 아울러 사출장치의 각종 데이터를 수집하는 사출장치 서버(20)와; 상기 사출장치 서버와 사출장치를 연결하며, 사출장치 서버의 사출 가공 데이터를 사출장치에 출력하여 사출장치가 순차적으로 사출동작을 하도록 데이터를 연결하는 인터페이스 장치(30)를 포함하여 구성함이 특징이다.

CIRCULATING WATER PIPE CONTROL DEVICE FOR INJECTION MOLDING DEVICE

The present invention relates to a circulating water pipe control device for an injection molding device. The circulating water pipe control device includes: a first air pipe (11) branching from an air pipe (10), and connected to a cooling water supply pipe (20); a second air pipe (12) discharging heating water and cooling water, remaining in a mold, through a cooling water discharge pipe (30) and a heating water discharge pipe (50); a first drain pipe (31) and a second drain pipe (51) connected to the cooling water discharge pipe (30) and the heating water discharge pipe (50) respectively; a first liquid pipe (32) and a second liquid pipe (52) installed between the cooling water discharge pipe (30) and the heating water discharge pipe (50) and a gas-liquid separator (70); a decompressing valve (250) controlling pressure of circulating water flowing in the cooling water discharge pipe and the heating water discharge pipe; a motor (230) controlling the decompressing valve (250); a main controller ...

Apparatus with innjection mold for air intake hose

METHOD FOR MANUFACTURING PLASTIC PRODUCT INCLUDING FILM

Disclosed is a method for manufacturing a plastic product including a film. The disclosed method for manufacturing a plastic product including a film comprises: a semi-finished product forming step injection molding a semi-finished product including a film and a first resin layer made of the first resin attached to one surface of the cured film; and a finished product forming step of injection molding a finished product including the semi-finished product and a second resin layer made of the second resin cured and attached to the other surface of the film. The mold for injection molding the semi-finished product and the mold for injection molding the finished product are heated to higher than 100°C by vapor, and are cooled by a coolant at room temperature. Provided in the present invention is the method for manufacturing a plastic product including a film mass producing a plastic product including a film by injection molding. COPYRIGHT KIPO 2016 (S100) Form a semi-finished product (S110 ...

Method for forming optical formed article

In the method for molding the molded article for optical applications by injecting the transparent thermoplastic resin in a mold cavity, the transparent thermoplastic resin is injected into a mold (Th>Tc), whose temperature (Th) during heating is set to be higher by 0-100 DEG C than the deflection temperature under load of the injected thermoplastic resin and whose temperature (Tc) during demolding after cooling is set to be lower by 0-100 DEG C than the deflection temperature under load of the thermoplastic resin.

Molding machine system

A molding machine system that is capable of freely setting of execution timings for individual operations, such as metal mold heating, molding material injection, pressure retention and cooling, in each molding cycle. There is provided a molding machine system adapted to repeat a sequence of molding cycle, comprising three temperature sensors (101) disposed at different sites of metal mold (100); switching valve unit (50) equipped with medium channels for realization of switched supply of a heating medium from heating unit (1), a cooling medium from cooling unit (30) and a pressure air to the metal mold (100) and recovery thereof; and control means (64) equipped with a program for temperature judgment and a timer and fitted to the switching valve unit (50), wherein any temperature detected by the three temperature sensors (101) is judged by the program for temperature judgment, and wherein on the basis of results of the judgment combined with time setting signal by the timer, there are ...

Composite molded article and method for making the same

MOLD TEMPERATURE CONTROL FLOW CIRCUIT FOR INJECTION MOLDING MACHINE AND DISCHARGE METHOD OF HEATING MEDIUM

APPARATUS FOR HEATING A MOLD FOR AN INJECTION MOLDING SYSTEM

An apparatus performs induction heating or dielectric heating of a mold for an injection molding system up to a desired temperature within a short time by using high frequencies or microwaves. The electric current of high frequency generated from a high frequency generator (140) flows through a coil (150) embedded in the mold (160) to induction-heat the mold by an induction phenomenon with the mold, and microwaves from a microwave generator heats the dielectric material within the mold, thereby preventing cooling of the mold when a resin fluid is injected into a cavity.

METHOD FOR AUTOMATICALLY BALANCING THE VOLUMETRIC FILLING OF CAVITIES

The invention relates to a method for automatically balancing the volumetric filling of cavities (5), especially of multiple injection molding dies (1), which is characterized by detecting the temperature profile in the cavities (5) and averaging the same for all cavities (5).

METHOD AND SYSTEM FOR MANUFACTURING AT LEAST ONE TIMEPIECE ELEMENT INTENDED TO BE MOUNTED ON A TIMEPIECE COMPONENT OF A TIMEPIECE

A method for manufacturing a timepiece element, such as an applique, to be mounted on a timepiece component, such as a dial of a timepiece, includes producing a blank of the timepiece element from an injection overmoulding of injectable material into a cavity of a mould. The cavity is defined by the association of at least one impression of a first part of the mould with a second part of the mould including an inlet orifice of the cavity for injecting the material into the cavity. The method also includes finishing the timepiece element including applying a coating on the blank of the timepiece element overmoulded on the second part, and withdrawing the finished timepiece element from the second part, which includes breaking an injection point connecting the timepiece element to the second part in preparation for mounting thereof on the timepiece component.

Control system for an injection molding machine

A control system is applicable for an injection molding machine which has a temperature setting function and display function. The control system includes a temperature scale/unit setting function for selecting a temperature setting and a displaying mode which changes a data display between a Centigrade mode (where a temperature setting device and temperature on the display are performed in Centigrade) and a Fahrenheit mode. The control system also includes a display switching function for temporarily switching the display mode to a mode different from the current temperature setting mode as set by the temperature scale/unit setting function and a display mode restoring function for switching the temporarily switched display mode to the original display mode.

Temperature control indicating apparatus of a hot runner in a thermoplastic synthetic resin injection molding system

In a temperature control indicating apparatus of a hot runner in a thermoplastic synthetic resin injection molding system, the apparatus has a hot runner comprising a body heater, a tip heater and a temperature sensor. The hot runner is connected to a hot runner temperature control circuit having A/D converter. The apparatus has the function of arithmetic control, setting operation and display. Further, the apparatus comprises a digital control means including a microprocessor, thereby the body heater of the hot runner is digital-controlled in the process of thermoplastic synthetic resin injection molding operation.

Injection molding machine with automatic restart feature

An injection molding machine is disclosed. The machine includes a standby mode and an automatic restart mode. The machine can be programmed to automatically restart after a predetermined amount of time, with minimal effort required by a machine operator.

Method for cooling injection molding molds

This invention provides a plastic molding method, a mold, and a molded article. According to this invention, the supply flow rate of a coolant, e.g., cooling water, to a mold is maintained to shorten the molding cycle and to improve the productivity in continuous molding. The temperature distribution and pressure distribution in the mold are measured, thereby realizing determination as to whether a molded article is defective or not in the molding and cooling processes. The temperatures at respective required portions of the molded article removed from the mold are monitored, so that determination as to whether a molded article is defective or not can be performed, thereby improving the productivity. Countermeasures are taken not to deform the molded article. A thermoplastic resin injected from a hot runner into a cavity is heated at a gate discharge portion by a shearing heat upon injection. Countermeasures are taken to suppress temperature increase caused by this heat. Thus, the contiguous ...

Method of molding system, including raising temperature of feedstock responsive to a calculated amount of thermal energy

Disclosed is a molding-system method, including a temperature-changing operation, including changing temperature of a feedstock being positioned in a barrel assembly from an out-of-barrel temperature to substantially within a processing-temperature range, in response to supplying a calculated amount of thermal energy to the barrel assembly based on a melt throughput being associated with molding articles.

Polylactic acid moulding process

Novel polylactic acid biopolymer systems and methods of producing products with polylactic acid biopolymers are disclosed. Products produced according to the systems and methods disclosed herein have enhanced deflection temperature and improved mechanical performance when compared to conventional injection moulding processes. Systems and methods for compounding polylactic acid biopolymer and creating an object using a polylactic acid biopolymer by extrusion and injection moulding process are described.

Method for Injection Molding at Low Substantially Constant Pressure

Disclosed herein are methods of injection molding at low, substantially constant melt pressures. Embodiments of the disclosed method now make possible a method of injection molding that is more energy—and cost—effective than conventional high-velocity injection molding processes. Embodiments of the disclosed method surprisingly allow for the filling of a mold cavity at low melt pressure without undesirable premature hardening of the thermoplastic material in the mold cavity and without the need for maintaining a constant temperature or heated mold cavity. Heretofore, it would not have been expected that a constant pressure method could be performed at low pressure without such premature hardening of the thermoplastic material when using an unheated mold cavity or cooled mold cavity.

Label for in-mold molding, in-mold molded article and method for molding same

A label for in-mold molding, which comprises a laminate film comprising a substrate layer (A) and a heat-sealable resin layer (B), wherein the substrate layer (A) comprises a thermoplastic resin in an amount of from 40 to 90% by weight and at least one of an inorganic fine powder and an organic filler in an amount of from 10 to 60% by weight, the heat-sealable resin layer (B) comprises a thermoplastic resin in an amount of from 50 to 100% by weight, the laminate film is at least uniaxially stretched, the porosity of the laminate film is from 10% to 45%, the thermal conductivity of the label is from 0.04 to 0.11 W/mK, and the bonding strength of the label stuck to an adherend formed of a propylene-based resin at 200° C. and 60 MPa is from 250 to 1500 g/15 mm.

Apparatus for Resin Transfer Molding Composite Parts

A composite fabrication apparatus which may include a first tooling die and a second tooling die movable with respect to each other; a temperature control system having induction coils disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor provided on the first tooling die and a second die susceptor provided on the second tooling die and connected to the induction coils; and a cooling system disposed in thermal contact with the first tooling die and the second tooling die. A resin transfer system delivers resin from a resin source to the tooling dies to allow resin transfer molding. A composite fabrication method is also disclosed. 1. Resin transfer molding apparatus , comprising:a pair of tooling dies each including a plurality of stacked metal sheets;first and second susceptors respectively mounted on the first and second dies, the first and second susceptors including facing contoured surfaces defining a mold cavity for molding a part;a temperature control system including induction coils inductively coupled with the first and second susceptors; and,a resin transfer system for delivering resin from a resin source to the mold cavity.2. The apparatus of claim 1 , wherein the temperature control system includes means for cooling the tooling dies.3. The apparatus of claim 2 , wherein the cooling means includes:cooling passageways between the stacked metal plates, andmeans for introducing a cooling medium into the passageways.4. The apparatus of claim 3 , wherein the means for introducing the cooling medium includes nozzles in the passageways for directing the cooling medium toward the susceptors.5. The apparatus of claim 1 , wherein the tooling dies include contoured faces respectively generally matching the contoured surfaces of the first and second susceptors.6. The apparatus of claim 1 , further comprising a dielectric shell disposed between each of the first and second susceptors and the corresponding tooling die. ...

METHOD FOR CHARACTERIZING, MONITORING, AND CONTROLLING A MOLD, DIE, OR INJECTION BARREL

In a method for thermally controlling a mold, initial measurements of flow versus pressure or pumping speed for a thermal exchange liquid are used to select an achievable flow within a maximum pressure. Subsequently, the system's identity and integrity are verified by repeating at least one measurement before and/or during a process run. An energy exchange rate can be adjusted to a moving average over preceding cycles. Thermal equilibrium can be detected by sensing changes in temperature to or from the process, or in energy exchange rates, from cycle to cycle. An energy exchange rate set point can be set to an initial value during startup, and then reset to an equilibrium value. Energy efficient operating conditions can be determined by comparing circulator energy consumption with thermal energy exchange rates over a range of flow rates and/or temperatures to the process. Cooling flow pulse timing can be graphically adjusted. 1. A method for establishing initial operating conditions for a molding system , the molding system including an injection mold , die , or barrel (herein referred to as a “process”) , a circulator , and a thermal exchange liquid circulated by the circulator through the process , the method comprising:before beginning a first process run, accepting from a user a desired flow rate of the thermal exchange liquid and a maximum value of an operating pressure of the thermal exchange liquid;measuring and recording a flow rate value of the thermal exchange liquid for each of a plurality of values of a flow control parameter spanning a range of achievable values of the flow control parameter, said range of achievable values being limited so that no value within said range causes the operating pressure to exceed the maximum value of the operating pressure;determining from the measured flow rate values if the desired flow rate can be provided by setting the flow control parameter to a value within the range of achievable values;if the desired flow rate ...

Device and Method for Production of Dental Molded Parts

The invention relates to a device for production of dental molded parts from a polymerizable plastic, with a flask () and with a heating device () for heating the polymerizable plastic in the flask (). The heating device () is movable relative to the flask (). 1. A device for production of dental molded parts from a polymerizable plastic , the device comprising:{'b': '16', 'a flask ();'}{'b': 40', '16, 'a heating device () for heating the polymerizable plastic in the flask (); and'}{'b': 41', '16', '40', '16', '40', '16, 'a receiving area () for the flask (), wherein the heating device () and the flask () are movable relative to one another between a rest position and a heating position, and wherein the heating device () heats the flask () in the heating position.'}2164141. The device as claimed in claim 1 , wherein claim 1 , in the rest position claim 1 , the flask () can be delivered to the receiving area () unimpeded and can be removed from the receiving area () unimpeded.34016. The device as claimed in claim 1 , wherein claim 1 , in the heating position claim 1 , the heating device () at least partially encloses the flask () in a manner of a U claim 1 , and substantially from above.440124140. The device as claimed in claim 1 , wherein the heating device () is mounted on a housing () claim 1 , which comprises the receiving area () and the heating device () claim 1 , and is mounted so as to be pivotable and/or displaceable with aid of a drive device.54040. The device as claimed in claim 1 , wherein the heating device () has two branches which correspond substantially to side branches of a U and diverge from one another claim 1 , and wherein the branches of the heating device () are pivotable relative to one another.6404416. The device as claimed in claim 1 , wherein the heating device () has at least one reflector () directed toward the flask ().74018161640. The device as claimed in claim 1 , wherein the heating device () is arranged lying substantially opposite ...

Monitored mixture and dosing head

The invention relates to a high-pressure mixing, dosing and recirculation head for injection or casting reaction molding, said high-pressure mixing, dosing and recirculation head comprising a head body, a mixing chamber, obtained in the head body wherein a valve element or mixing valve slides and in fluid communication with a supply duct, and a self-cleaning element comprising a scraping portion, said self-cleaning element being structured to slide in said supply duct, as well as comprising an apparatus for controlling and commanding mixing, supply and recirculation comprising a plurality of sensors and transducers mounted on board of the head body and of the components parts of the head connected thereto to detect and transform representative physical quantities of at least one operational status of said high-pressure mixing, dosing and recirculation head into electrical signals and an electronic control and storing system adapted to synchronously control and scan said sensors and transducers and adapted to receive and process said electrical signals indicative of said at least one operational status, at the beginning and during the operational phases of said high-pressure mixing, dosing and recirculation head to compare them with each other and with electrical signals representative of a predetermined reference operational status. The invention also relates to a high-pressure mixing, dosing and recirculation method for injection or casting reaction molding.

INJECTION MOLDING MACHINE

An injection molding machine includes: a first driving device rotating a screw provided inside a heating cylinder; a second driving device moving the screw forward and backward; a metering control section configured to, by controlling the first driving device and the second driving device, to meter resin while melting the resin, and thereafter rotate the screw in reverse to thereby reduce the pressure of the resin; a first sensor unit for detecting the pressure; a second sensor unit for detecting one or more kinds of physical quantities that affect the change of the pressure; and a prediction section predicting decompressing rotation information based on the pressure detected by the first sensor unit and the one or more kinds of physical quantities detected by the second sensor unit. The metering control section controls the first driving device based on the decompressing rotation information predicted by the prediction section. 1. An injection molding machine including a heating cylinder configured to melt resin and a screw provided inside the heating cylinder , comprising:a first driving device configured to rotate the screw inside the heating cylinder;a second driving device configured to move the screw forward and backward inside the heating cylinder;a metering control section configured to, by controlling the first driving device and the second driving device, move the screw backward while rotating the screw forward so as to meter an amount of the resin while melting the resin, and thereafter rotate the screw in reverse to thereby reduce a pressure of the resin;a first sensor unit configured to detect the pressure;a second sensor unit configured to detect one or more kinds of physical quantities that affect change of the pressure, from the injection molding machine; anda prediction section configured to predict decompressing rotation information including at least one of a rotation angle by which the screw should be rotated in reverse after the metering in ...

MOLDING SUPPORT DEVICE FOR INJECTION MOLDING MACHINE

Provided are a basic data input unit to input basic data including molding conditions data related to molding conditions and screw data related to the form of the screw; a calculation formula data setting unit to set solid phase rate calculation formula data to calculate the solid phase rate of the molten resin in a heating cylinder based on this basic data; a calculation processing function unit having a solid phase rate calculation processing unit to use calculation processing based on the basic data and the solid phase rate calculation formula data to calculate an estimated solid phase rate of the molten resin at the measurement completion; and an output processing function unit that performs display processing to display information related to the estimated solid phase rate on a display. 1. A molding support device for an injection molding machine for performing a molding support to an injection molding machine to inject plasticized molten resin with a screw to fill a metal mold with the resin , characterized in comprising:a basic data input unit that inputs basic data including molding conditions data related to at least molding conditions and screw data related to the form of the screw;a calculation formula data setting unit that sets solid phase rate calculation formula data to calculate, based on this basic data, the solid phase rate of the molten resin in the heating cylinder;a calculation processing function unit that has a solid phase rate calculation processing unit to use calculation processing based on the basic data and the solid phase rate calculation formula data to calculate an estimated solid phase rate of the molten resin at the measurement completion; andan output processing function unit that performs display processing to display information related to the estimated solid phase rate on a display.2. The molding support device for the injection molding machine according to claim 1 , wherein: the molding conditions data includes data related to ...

Temperature control device for injection molding machine

A detector attachment unit is provided that has at least two or more mounting hole sections for which the temperature detector is detachably attached to the outer surface of the heating cylinder and the temperature detector can be attached at different selected positions in at least the axial direction of the heating cylinder. The temperature control system includes an inner wall face temperature conversion function unit to perform conversion processing to convert the heating temperature detected by the temperature detector to the inner wall face temperature of the heating cylinder, and an inner wall face temperature display function unit to perform at least display processing on the inner wall face temperature obtained by this inner wall face temperature conversion function unit.

Nozzle shut off for injection molding system

An injection molding apparatus and method of fabricating a molded part are provided. The apparatus may include a barrel, a nozzle enclosing an end of the barrel and defining an opening in fluid communication with an inside of the barrel, and an extrusion screw positioned at least partially inside the barrel and rotatable relative to the barrel. The extrusion screw may include a screw tip. Relative axial movement between the barrel and the extrusion screw may open or close the opening of the nozzle to permit or prevent, respectively, material flow through the opening of the nozzle. The method may include clamping a mold, opening a nozzle, rotating the extrusion screw to pump a molten material into the mold until the mold is filled, closing the nozzle, and unclamping the mold to release a molded part.

SEQUENTIAL COINING

Injection molding at substantially constant pressure and utilizing “sequential coining” to produce molded parts substantially free of cosmetic and mechanical defects. 1. A method of injection molding , comprising:injecting a molten thermoplastic material into a mold cavity defined by a mold of an injection molding system;actuating, at a first point in time during the injecting, a first movable element of the mold from a first position to a second position; andactuating, at a second point in time during the injecting, a second movable element of the mold from a first position to a second position, the second movable element being distinct from the first movable element, and the second point in time being later than the first point in time.2. The method of claim 1 , wherein actuating the first movable element from the first position to the second position comprises moving the first movable element toward an opposing wall of the mold claim 1 , and wherein in the second position the first movable element is spaced from the opposing wall of the mold.3. The method of claim 1 , wherein the injecting comprises maintaining a melt pressure of the shot of the molten thermoplastic material at a substantially constant pressure during filling of substantially the entire mold cavity.4. The method of claim 3 , wherein the injecting comprises maintaining a melt pressure of the shot of the molten thermoplastic material at a pressure of 15 claim 3 ,000 psi or less during filling of substantially the entire mold cavity.5. The method of claim 1 , further comprising determining a position of a flow front of the molten thermoplastic material based on at least one of time claim 1 , a position of the screw of the injection molding system claim 1 , a melt pressure claim 1 , and a hydraulic pressure claim 1 , at least one of the first point in time and the second point in time being based on the determined position.6. The method of claim 5 , wherein the determining comprises obtaining claim 5 ...

METHOD OF INJECTION MOLDING WITH CONSTANT-VELOCITY FLOW FRONT CONTROL

In order to injection mold parts at a constant flow front velocity in a mold cavity of an injection molding system, particularly where the mold cavity has a varying thickness along its length, mold modeling software is used to calculate the cross-sectional area as a function of the distance from the gate, percentage of fill, or length of the mold cavity. Based on that cross-sectional area, the mold modeling software determines an appropriate recommended ram force profile and/or melt pressure profile that would result in filling the mold cavity at a constant flow rate. An injection molding system is then operated according to the recommended ram force profile and/or melt pressure profile. 1. A method , comprising:simulating, using a mold flow simulator, an injection molding filling cycle;determining a flow profile comprising a cross-sectional area of a flow front of a flow of molten thermoplastic material during the simulated injection molding filling cycle; anddetermining a force profile based at least in part on the determined flow profile, the force profile comprising a force to be applied to an injection molding ram such that the molten thermoplastic material has a substantially uniform flow front velocity at all times during a filling of one or more mold cavities in an injection molding apparatus operating the injection molding ram according to the determined force profile.2. The method of claim 1 , wherein determining the force profile comprises determining the force to be applied to the injection molding ram as a function of the cross-sectional area of the flow front.3. The method of claim 1 , wherein determining the force profile comprises determining the force to be applied to the injection molding ram such that a flow rate of the molten thermoplastic material is proportional to the cross-sectional area of the flow front.4. The method of claim 1 , wherein the flow profile comprises the cross-sectional area of the flow front of the flow of the molten ...

Method for evenly distributing plastic melt in a hot runner system using strain gauges

A hot runner injection molding apparatus, and method of use, is disclosed in which strain gauges are provided in the temperature zones of the hot runner injection molding apparatus and a hot runner controller creates a target strain profile, detects deviations from the target strain profile in any temperature zone based on the strain readings provided by the strain gauges in each temperature zone, and instructs correction of deviations from the target strain profile in any deviating temperature zone by adjusting the heat produced by a heater or heaters in the deviating temperature zone. The target strain profile may be based on a median or average of strain readings provided over time by the strain gauges in each temperature zone. A hollow installation tube for placing the strain gauges in the hot runner injection molding apparatus is also disclosed.

Semiconductor die carrier structure

An apparatus having a first portion including first front wall, first rear wall, and bottom wall integrally coupled to the first front wall and the first rear wall, and pivotal pin structures integrally coupled to and extending from the first rear wall. The apparatus includes a second portion having second front wall, second rear wall, and top wall integrally coupled to the second front wall and the second rear wall, and pin holders integrally coupled to and extending from the second rear wall and at an offset angle with reference to the top wall. The pivotal pin structure includes a base support connected to the first rear wall and a shaft connected to the base support, and the pin holder defines an opening sized and shaped to accept the shaft. The first and second portions are sized and shaped to be pivotally movable between an open and closed configurations.

MANUFACTURING METHOD AND INJECTION MOLDING SYSTEM

A method including a first step of performing clamping of a mold, injection and dwelling in an injection molding machine, a second step of performing a conveyance and a cooling of the mold outside of the machine, and a third step of performing a conveyance of the mold into the machine, an opening of the mold and an ejection of a molded part in the machine. The second step is performed for a first mold, the third step and the next first step are performed for a second mold. The first mold is conveyed by a first conveyance apparatus which is arranged on one lateral side of the machine. The second mold is conveyed by a second conveyance apparatus which is arranged on the other lateral side and is independently driven from the first conveyance apparatus. 1. A method of manufacturing a molded part by one injection molding machine while alternating two molds , the method comprising:a first step of performing clamping of a mold, injection and dwelling in the injection molding machine;a second step of, after the first step, performing a conveyance of the mold outside of the injection molding machine and a cooling of the mold outside of the injection molding machine; anda third step of, after the second step, performing a conveyance of the mold into the injection molding machine, an opening of the mold and an ejection of a molded part in the injection molding machine,wherein the first to third steps are repeatedly performed,while the second step is performed for a first mold, the third step and the next first step are performed for a second mold,the first mold is conveyed by a first conveyance apparatus which is arranged on one lateral side of the injection molding machine, andthe second mold is conveyed by a second conveyance apparatus which is arranged on the other lateral side of the injection molding machine and is independently driven from the first conveyance apparatus.2. The method according to claim 1 , whereineach of a fixed platen and a movable platen in the ...

Mould, machine and method for manufacturing three-dimensional items and manufacturing plant associated with same

The invention relates to a mould ( 1 ) for manufacturing three-dimensional items, comprising a body ( 2 ); a lid ( 4 ) configured to close said body ( 2 ); and incorporated closing and opening means ( 5 ) configured to keep the body ( 2 ) and the lid ( 4 ) joined during the movement thereof. A machine (M 1 ) for manufacturing three-dimensional items, comprising a receiving module (M 2 ) configured to receive the mould ( 1 ); a conditioning module (M 3 ) configured to receive the mould ( 1 ) from the receiving module (M 2 ) and act on the incorporated closing and opening means ( 5 ) in order to separate the lid ( 4 ) from the body ( 2 ); and a handling module (M 4 ) configured to receive the body ( 2 ) from the conditioning module (M 3 ) and enable the placement of the components of the item to be manufactured. A method for manufacturing three-dimensional items and manufacturing plant associated with said machine (M 1 ).

MOLDING SYSTEM AND METHOD FOR OPERATING THE SAME

A method for operating a molding machine includes specifying a simulating domain corresponding to a genuine domain in a mold disposed on the molding machine. The method proceeds to perform a virtual molding by using a setting packing pressure profile to generate a simulated state waveform, generating a designed state waveform including an isobaric phase and an isochoric phase while taking into consideration the simulated state waveform, and obtaining an updated packing pressure profile for applying a molding pressure to a portion of the genuine domain while taking into consideration a difference between the simulated state waveform and the designed state waveform. Subsequently, the method proceeds to set the molding machine while taking into consideration the updated packing pressure profile to perform an actual molding by applying an actual molding pressure to the at least a portion of the genuine domain to prepare the molding product. 1. A molding system , comprising:a molding machine;a mold disposed on the molding machine; and specifying a simulating domain corresponding to a genuine domain in the mold, wherein the genuine domain has a mold cavity to be filled with a molding resin from the molding machine to prepare a molding product;', 'performing a virtual molding by using a setting packing pressure profile to generate a simulated state waveform expressing a relationship between an in-mold pressure and an in-mold temperature of the molding resin;', 'generating a designed state waveform including an isobaric phase and an isochoric phase following the isobaric phase while taking into consideration the simulated state waveform;', 'obtaining an updated packing pressure profile for applying a molding pressure to at least a portion of the genuine domain while taking into consideration a difference between the simulated state waveform and the designed state waveform; and', 'setting the molding machine while taking into consideration the updated packing pressure ...

MOLD CLAMP CONTROL METHOD FOR INJECTION MOLDING MACHINE HAVING TOGGLE-TYPE MOLD CLAMPING MECHANISM

A mold clamp control method for an injection molding machine having a toggle-type mold clamping mechanism. The mold clamp control method includes: a low-pressure mold clamping step that performs position hold control by which a crosshead is held in a set holding position in a state where a toggle link has been bent, when injection-filling is started; and a compression-press step that performs speed and position control by which the crosshead is advanced toward a set advancement position from the set holding position in a state where a first output upper limit value has been provided to a driving section. Advancement of the crosshead is continued in at least part of the compression-press step in a state where a generated output of the driving section is maintained at the first output upper limit value. 1. A mold clamp control method for an injection molding machine having a toggle-type mold clamping mechanism ,the toggle-type mold clamping mechanism bending/extending a toggle link by retreating/advancing a crosshead in a mold opening/closing direction by a driving section, and thereby mold-opening/closing and mold-clamping a movable mold attached to a movable plate, with respect to a fixed mold attached to a fixed plate,the mold clamp control method including:a low-pressure mold clamping step that performs position hold control by which the crosshead is held in a set holding position in a state where the toggle link of the toggle-type mold clamping mechanism has been bent, when injection-filling is started; anda compression-press step that performs speed and position control by which the crosshead is advanced toward a set advancement position from the set holding position in a state where a first output upper limit value has been provided to the driving section of the toggle-type mold clamping mechanism,advancement of the crosshead being continued in at least part of the compression-press step in a state where a generated output of the driving section of the toggle- ...

INJECTION MOLDING APPARATUS

An injection molding apparatus having a hot runner including a plurality of thermocouples and a plurality of heaters, a temperature controller remote from the hot runner, and a communication box attached to the hot runner. The communication box being configured to form a fieldbus, via a wireless communication link, with the temperature controller, and the communication box including a communication card connecting the thermocouples to the fieldbus. 1. An injection molding apparatus comprising:a hot runner including a plurality of thermocouples and a plurality of heaters;a temperature controller remote from the hot runner; anda communication box attached to the hot runner, the communication box configured to form a fieldbus, via a wireless communication link, with the temperature controller, the communication box including a communication card connecting the thermocouples to the fieldbus.2. The injection molding apparatus of claim 1 , wherein the fieldbus is a Controller Area Network bus (CAN bus).3112. The injection molding apparatus of claim 2 , wherein the communication card can connect to thermocouples to the CAN bus.4. The injection molding apparatus of claim 3 , wherein the communication box includes a plurality of communication cards daisy chained together.5. The injection molding apparatus of claim 4 , wherein the communication cards are slaves and the temperature controller includes a master card forming the fieldbus with the communication cards claim 4 , the temperature controller includes a computer-on-modules (COM) board in communication with the master card.6. The injection molding apparatus of claim 5 , wherein the temperature controller includes another fieldbus and a plurality of temperature controlling cards daisy chained together claim 5 , the temperature controlling cards are slaves and the temperature controller includes another master card forming the another fieldbus with the temperature controlling cards claim 5 , the COM board in communication ...

Reinforced thermoplastic and fabric injection overmolding

An LWRT plus fabric injection overmolding process for the direct injection molding of thermoplastic features onto the B-side of a formed, finished Light Weight Reinforced Thermoplastic panel. The panel having an A-side finish cloth, non-woven, TPO, Vinyl or similar material placed into the injection molding press and injection molding tool, and then the features are injection molded onto the panel without damaging the A-side finish. 1. A method of injection molding thermoplastic comprising the steps of:inserting a Light Weight Reinforced Thermoplastic (LWRT) having an A-side with a fabric finish and a B-side into a molding tool having adjustable mold standoffs positioned in the molding tool around the LWRT with fabric inserted panel, said A-sided including a finish selected from a cloth, non-woven, TPO, vinyl or the like material;controlling temperatures of incoming injection molding resin to said molding tool;balancing pressures of incoming injection molding resin to said molding tool;adjusting tool standoffs for tonnage building in said molding tool to control clamping force exerted on said LWRT fabric;forming injection molding features on said B-side;wherein said LWRT plus fabric inserted part receives injection molding of features on the B-side of the LWRT without damaging the LWRT or fabric finish.2. The method of injection molding thermoplastic according to wherein said injection molding resin having low linear shrinkage.3. The method of injection molding thermoplastic according to wherein said LWRT panel selected from the group consisting of Azdel fiberglass reinforced plastic claim 1 , natural fiber polypropylene claim 1 , thermoplastic foam panels claim 1 , and carbon fiber reinforced thermoplastics.4. The method of injection molding thermoplastic according to wherein said LWRT material with said A-side fabric is inserted into said injection molding tool before a press is cycled.5. The method of injection molding thermoplastic according to including the ...

GRAPHICAL INTERFACE FOR INJECTION MOLDING SYSTEMS

System and method for monitoring system parameters from multiple independent controllers that monitor and control an injection process. In one embodiment the method includes steps of: 1. A system comprising:one or more processors; and establish a common graphical user interface (common GUI) for viewing system parameters of a tool based injection molding system (IMS), the IMS including a plurality of different local controllers that control different tool based system functions of the IMS and one common graphical user interface (local GUI) with GUI routines specific to the local controllers for set up and monitoring of the respective tool based system function of the respective local controllers;', 'provide set up parameters, to each of the local controllers, for establishing the injection molding processes', 'receive, from each of the local controllers, data indicating a local state of the respective tool based system function;', 'propagate to the common GUI one or more common views of the set up parameters and received local states of the various tool based system functions, the common views comprising a common set of graphical routines for set up and monitoring of the tool based system functions of the IMS and for providing input to one or more of the local controllers., 'at least one computer-readable storage medium having stored therein instructions which, when executed by the one or more processors, cause the one or more processors to2. The system of claim 1 , wherein:the IMS includes an injection molding machine, a mold and a hot runner system, and the local controllers operate the mold and the hot runner system.3. The system of claim 2 , wherein:the local controllers include one or more of a hot runner temperature controller, a valve pin position controller, a mold cavity sensor controller and a mold temperature controller.4. The system of claim 1 , wherein:the common set of graphical routines include common icons, colors and graphical details.5. The system ...

INJECTION MOLDING METHOD WITH INFRARED PREHEAT

A plastic injection molding system includes a mold having an interior surface and an exterior surface. The interior surface defines a mold cavity, which is configured in a shape of a part to be formed. A source of plastic, having a known heat deflection temperature, is injected into the mold cavity. At least one infrared heat source is disposed adjacent the mold. The at least one heat source is moveable between a first position disposed away from the interior surface of the mold and a second position where the at least one heat source is in communication with the mold cavity surface. A controller is in communication with the at least one heat source and is configured to heat the mold cavity surface to a predetermined temperature below the heat deflection temperature of the plastic resin. At least one temperature sensor is in communication with the interior surface of the mold and in communication with the controller to move the at least one heat source to the second position when the interior surface of the mold reaches the predetermined temperature. 1. A plastic injection molding system , comprising:a mold having an interior surface and an exterior surface;a mold cavity defined by the interior surface and configured in a shape of a part to be formed;a source of plastic resin to be injected into the mold cavity, the source of plastic resin having a heat deflection temperature;at least one infrared heat source disposed adjacent the mold, the at least one heat source being moveable between a first position disposed away from the interior surface of the mold and a second position where the at least one heat source is in communication with the mold cavity surface;a controller in communication with the at least one heat source and configured to heat the mold cavity surface to a predetermined temperature below the heat deflection temperature of the plastic resin;at least one temperature sensor in communication with the interior surface of the mold and in communication ...

METHOD OF INJECTION MOLDING USING ONE OR MORE EXTERNAL SENSORS AS A VIRTUAL CAVITY SENSOR

A injection molding method involves measuring, using at least one external sensor, a change in a parameter of a mold side of a mold cavity, approximating a condition within the mold cavity based on the change in the parameter, such as pressure within the mold cavity or flow front position, and comparing the approximated condition to a trigger point,. If the approximated condition equals or exceeds the trigger point, activating a virtual cavity sensor having an optimal pre-defined pressure-time curve, and upon activation, the virtual cavity sensor tracks an approximated condition calculated from the change in parameter measurements measured by the at least one external sensor over time. In an embodiment, results of the approximated parameter tracking can be used in conjunction with an optimal pre-defined pressure-time curve. 1. A method of injection molding , comprising:measuring, using at least one strain gauge sensor, a change in strain in a mold side of a mold cavity;approximating at least one of a pressure or a melt flow front location within the mold cavity based on the change in strain;comparing the approximated pressure or melt flow front location to a trigger point;if the approximated pressure or melt flow front location equals or exceeds the trigger point, activating a virtual cavity sensor.2. The method of claim 1 , wherein upon activation claim 1 , the virtual cavity sensor causes a controller to perform an action comprising at least one of increasing the rate of extrusion of molten thermoplastic material claim 1 , decreasing the rate of extrusion of molten thermoplastic material claim 1 , increasing the force of injection of molten thermoplastic material claim 1 , decreasing the force of injection of molten thermoplastic material claim 1 , actuating one or more walls of the mold cavity claim 1 , or activating a heating element within the mold cavity.3. The method of claim 1 , wherein upon activation claim 1 , the virtual cavity sensor tracks approximated ...

INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD

An injection molding apparatus including a mold, an injection device and at least one sensor is provided. The mold has a mold cavity. The injection device is adapted to inject a material into the mold cavity such that the material is formed into a forming article. The at least one sensor is disposed on the mold and adapted to sense at least one of a temperature and a pressure in the mold cavity. The at least one sensor is located at an inner surface of the mold cavity and corresponds to a non-appearance surface of the forming article. In addition, an injection molding method is also provided. 1. An injection molding apparatus , comprising:a mold comprising a mold cavity;an injection device adapted to inject a material into the mold cavity such that the material is formed into a forming article; andat least one sensor disposed on the mold and adapted to sense at least one of a temperature and a pressure in the mold cavity, wherein the at least one sensor is located at an inner surface of the mold cavity and corresponds to a non-appearance surface of the forming article.2. The injection molding apparatus according to claim 1 , wherein the at least one sensor comprises a temperature sensor and a pressure sensor.3. The injection molding apparatus according to claim 2 , wherein the temperature sensor and the pressure sensor are integrated into a single sensing element.4. The injection molding apparatus according to claim 1 , wherein the inner surface of the mold cavity comprises at least one concave portion claim 1 , the at least one concave portion corresponds to a portion to-be-cut of the forming article claim 1 , and the at least one sensor is located in the at least one concave portion.5. The injection molding apparatus according to claim 4 , wherein the at least one concave portion is a material injection area of the mold cavity or at least one overflow area of the mold cavity.6. An injection molding method claim 4 , comprising:providing a mold and at least one ...

INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD

An injection molding apparatus includes an injection-molding mold including a fixed mold and a movable mold, the fixed mold having a gate opening into which a molding material flows, the movable mold having a cavity and being configured to be separated from the fixed mold during mold opening; a hot runner including a nozzle having a channel that guides the molding material to the gate opening, and a heater, the hot runner being disposed in the fixed mold; and a control unit that controls a temperature of the heater to adjust a temperature of the hot runner. The control unit controls the temperature of the heater to a first temperature when the molding material is injected from the hot runner to the cavity, and after the injection of the molding material is completed, controls the temperature of the heater to a second temperature that is higher than the first temperature. 1. An injection molding apparatus comprising:an injection-molding mold including a fixed mold and a movable mold, the fixed mold having a gate opening into which a molding material flows, the movable mold having a cavity and being configured to be separated from the fixed mold during mold opening;a hot runner including a nozzle having a channel that guides the molding material to the gate opening, and a heater, the hot runner being disposed in the fixed mold; anda control unit that controls a temperature of the heater to adjust a temperature of the hot runner, wherein controls the temperature of the heater to a first temperature when the molding material is injected from the hot runner to the cavity, and', 'after the injection of the molding material is completed, controls the temperature of the heater to a second temperature that is higher than the first temperature, and, 'the control unit'}a gap between the nozzle and the gate opening when the temperature of the heater is controlled to the second temperature is narrower than the gap when the temperature of the heater is controlled to the first ...

TWO-COLOR SPIRAL STRIP INJECTION MACHINE BASED ON PLC CONTROL AND STRIP INJECTION METHOD THEREOF

A two-color spiral strip injection machine based on PLC control, comprising: a frame having a strip injection machine body, a motor, a PLC control box and a transmission mechanism, wherein the motor is connected to the strip injection machine body via the transmission mechanism; the strip injection machine body includes a cast aluminum heating cylinder, a core regulating lead screw; the core regulating lead screw includes a copper wire inlet, a head and a snout; the snout is connected to the transmission mechanism; the cast aluminum heating cylinder includes a head flange and a sizing inlet; the head includes a strip injection nozzle, the cast aluminum heating cylinder further includes a temperature sensor; the control box includes a PLC control program; the automated two-color strip injection is implemented by obtaining the real-time monitoring and feedback information of the temperature sensor. 1. A two-color spiral strip injection machine based on PLC control , comprising:a frame having a strip injection machine body located in an upper part thereof, a motor located in a lower part thereof, a PLC control box and a transmission mechanism respectively located on right and left sides of the frame, wherein the motor is connected to the strip injection machine body via the transmission mechanism; the strip injection machine body includes a cast aluminum heating cylinder, a core regulating lead screw disposed on a left of the cast aluminum heating cylinder; the core regulating lead screw includes a copper wire inlet disposed in a middle thereof, a head and a snout being connected to a right side of thereof; the snout is connected to the transmission mechanism; the cast aluminum heating cylinder includes a head flange located in a rear end thereof and a sizing inlet located in a center of the head flange; the head includes a strip injection nozzle located in an upper part thereof, the head is connected to the snout via a transmission shaft; the snout includes an outlet ...

NOZZLE SHUT OFF FOR INJECTION MOLDING SYSTEM

An injection molding apparatus and method of fabricating a molded part are provided. The apparatus may include a barrel, a nozzle enclosing an end of the barrel and defining an opening in fluid communication with an inside of the barrel, and an extrusion screw positioned at least partially inside the barrel and rotatable relative to the barrel. The extrusion screw may include a screw tip. Relative axial movement between the barrel and the extrusion screw may open or close the opening of the nozzle to permit or prevent, respectively, material flow through the opening of the nozzle. The method may include clamping a mold, opening a nozzle, rotating the extrusion screw to pump a molten material into the mold until the mold is filled, closing the nozzle, and unclamping the mold to release a molded part. 1. A method of molding a part , comprising:rotating a screw within a barrel to extrude a molten material through a nozzle opening of a nozzle into a mold cavity; andafter extruding the molten material through the nozzle opening, inserting a cylindrical tip portion of the screw corresponding in geometry to the nozzle opening into the nozzle opening along an entire axial length of the nozzle opening to displace all of the molten material from the nozzle opening.2. The method of claim 1 , wherein inserting the tip portion of the screw into the nozzle opening comprises inserting the tip portion of the screw into the nozzle opening until the tip portion of the screw is substantially flush with an exterior surface of the nozzle.3. The method of claim 1 , wherein inserting the tip portion of the screw into the nozzle opening comprises sealingly engaging the tip portion of the screw with the nozzle along the entire axial length of the nozzle opening.4. The method of claim 1 , further comprising sealingly engaging an interior surface of the nozzle with a transition portion of the screw.5. The method of claim 4 , wherein the transition portion of the screw extends outward from the ...

Method for manufacturing impeller

The present invention prevents internal cracks occurring when an impeller molded using a fiber reinforced resin is manufactured by injection molding. This method for manufacturing an impeller is provided with: an injection step of filling a cavity with a molten resin containing reinforced fibers, from a gate side into which the molten resin flows, toward an opposite-gate side opposite to the gate side; and a dwell step of applying required pressure to the filled molten resin. In the injection step and the dwell step, directional cooling is performed with a temperature gradient such that the temperature becomes lower from the gate side toward the opposite-gate side. According to this method for manufacturing the impeller, the opposite-gate side shrinks with a decrease in the temperature of the molten resin since the temperature of the opposite-gate side is lower. Meanwhile, because the temperature on the gate side is increased, the molten resin can be replenished from the gate side so as to correspond to the amount of shrinkage on the opposite-gate side, and therefore the occurrence of internal tensile residual stress and cracks due to the shrinkage can be prevented.

MOLDING SYSTEM FOR PREPARING AN IN-MOLD DECORATED ARTICLE

A molding system comprises a mold, a molding machine, a computing apparatus, and a controller. The computing apparatus is programmed to perform a first simulation to generate a velocity distribution and a temperature distribution of the molding material in a first portion of a simulating domain and a second simulation to generate a melting distribution of the solid decorating film in a second portion of the simulating domain, wherein the simulating domain corresponds to the mold cavity. The first molding simulation is to performed using a molding condition of the molding machine to set a boundary condition of the first portion, and the second molding simulation is performed using the velocity distribution and the temperature distribution of the molding material to set a boundary condition of the second portion. 1. A molding system for preparing an in-mold decorated article , comprising:a mold having a mold cavity, wherein a solid decorating film is disposed in the mold cavity;a molding machine configured to fill the mold cavity with a fluid molding material; specifying a simulating domain corresponding to a genuine domain in the mold disposed on the molding machine;', 'performing a first molding simulation to generate a temperature distribution and a velocity distribution of the fluid molding material in a first portion of the simulating domain, wherein the first molding simulation is performed using a molding condition of the molding machine to set a boundary condition of the first portion; and', 'performing a second molding simulation to generate a melting distribution of the solid decorating film in a second portion of the simulating domain, wherein the second molding simulation is performed using the temperature distribution and the velocity distribution of the fluid molding material to set a boundary condition of the solid decorating film in the second portion; and, 'a computing apparatus connected to the molding machine, wherein the computing apparatus is ...

Injection Molding Method and Apparatus

A thermoplastic injection molding system and method of use is described for molding parts from heated plastics and other organic resins. The machine uses heat sources located along the barrel to heat the source material while an auger screw transports the source material in the barrel. This transport step does not shear the source material, nor does it use friction to produce the heat necessary to melt the source material. The material becomes substantially liquid or melted during the heating process, and the melted material is forced, by the auger screw, into a chamber whereupon a plunger, situated concentrically with the auger screw, injects the material from the chamber into a mold. Sensors located along the barrel and in the chamber ensure consistency between mold cycles. The controller dynamically adjusts the injection molding process to achieve more consistent and reliable molded parts. 1. A machine for injection molding comprising:a barrel having an interior and having a longitudinal axis;a screw auger positioned within the barrel interior, wherein the screw auger is substantially concentric with the barrel and is operable to rotate and transmit a material along the length of the barrel, wherein the screw auger includes a bore also substantially aligned with the longitudinal axis;a heating element in thermal communication with said barrel;an injection chamber;a channel, wherein the channel provides fluid communication between the injection chamber and the barrel;a plunger substantially aligned for movement along the longitudinal axis and with the bore and being substantially coaxial with said screw auger, wherein the plunger in a first position impedes fluid communication between the barrel and the injection chamber, wherein the plunger in a second position does not impede fluid communication between the barrel and the injection chamber, wherein said plunger rotates with the rotation of the screw auger.an injection tube wherein the injection tube is in fluid ...

Temperature control device of injection molding machine having abnormality detection function

An injection molding temperature control device according to an aspect of the present disclosure controls output of a heater that heats a target site, based on a detection value of a temperature sensor which detects temperature of the target site of an injection molding machine that injects resin into a mold using an injection machine, the injection molding temperature control device including: a temperature control unit which controls output of the heater so as to make the detection value of the temperature sensor approach a predetermined set temperature; a supplied heat amount calculation unit which calculates a supplied heat amount to the target site based on at least one of a drive voltage, a duty ratio and an electrical current value of the heater; and an abnormality detection unit which detects abnormality in temperature control of the target site, based on the detection value of the temperature sensor, and a supplied heat amount calculated by the supplied heat amount calculation unit.

MELT TEMPERATURE MEASUREMENT SYSTEM

A melt temperature sensing kit includes a housing and a cup. The housing defines a cavity and has an outer periphery configured to be received by a platen of an injection molding machine. The cup has a proximate end and a distal end and is configured to be received within at least a portion of the cavity. The cup includes a base enclosing the distal end of the cup and a sidewall extending from the base, the sidewall defining a first aperture at the proximate end of the cup, a second aperture disposed between the proximate end and the distal end of the cup, and an internal volume. The first aperture, the second aperture, and the internal volume cooperate to define a flow path. At least one of the housing and the cup facilitate measurement of a shot flow temperature as part of a melt temperature measurement process. 1. A melt temperature sensing kit , comprising:a housing defining a cavity and having an outer periphery configured to be received by a platen of an injection molding machine; and a base enclosing the distal end of the cup; and', 'a sidewall extending from the base, the sidewall defining a first aperture at the proximate end of the cup, a second aperture disposed between the proximate end and the distal end of the cup, and an internal volume, wherein the first aperture, the second aperture, and the internal volume cooperate to define a flow path,, 'a cup having a proximate end and a distal end and configured to be received within at least a portion of the cavity, the cup comprisingwherein at least one of the housing and the cup are configured to position a temperature probe along the flow path and thereby facilitate measurement of a shot flow temperature as part of a melt temperature measurement process.2. The melt temperature sensing kit of claim 1 , wherein the housing defines a third aperture extending laterally inward from the outer periphery and forming a portion of the flow path.3. The melt temperature sensing kit of claim 2 , wherein the sidewall of ...

Method for manufacturing a composite of aluminum alloy

An aluminum alloy material is prepared that has surface configuration of threefold irregularities such that rough surface having surface roughness of 10 to 100 μm period is observed with an electron microscope in a magnification of 1000 times, surface having fine irregularities of 1 to 5 μm period based on crystal grain boundary is observed with an electron microscope in a magnification of 10000 times and surface having ultrafine irregularities of 30 to 100 nm period is confirmed with an electron microscope in a magnification of 100000 times. Aluminum alloy material is integrally joined with a resin composition consisting of a total resin part containing polyphenylene sulfide resin by 70 mass % or more of the resin part, modified polyolefin resin by 30 mass % or less of the resin part and a resin of third component having ability for promoting compatibility of polyphenylene sulfide resin and modified polyolefin resin.

PLASTICIZING UNIT FOR AN INJECTION MOLDING MACHINE

A plasticizing unit () for an injection molding machine having a plasticizing screw () arranged rotatably and displaceably in a cylinder bore of an axially extending plasticizing cylinder, wherein a screw prechamber () is arranged between an injection nozzle of the plasticizing cylinder and a screw tip of the plasticizing screw (), wherein a plurality of ultrasound transducers () is arranged at different axial positions of a wall () of the plasticizing cylinder and there is provided an evaluation unit () which is adapted to produce an axial temperature profile in the screw prechamber () from signals from the ultrasound transducers (). 1. A plasticizing unit for an injection molding machine having a plasticizing screw arranged rotatably and displaceably in a cylinder bore of an axially extending plasticizing cylinder , wherein a screw prechamber is arranged between an injection nozzle of the plasticizing cylinder and a screw tip of the plasticizing screw , wherein a plurality of ultrasound transducers is arranged at different axial positions of a wall of the plasticizing cylinder and there is provided an evaluation unit which is adapted to produce an axial temperature profile in the screw prechamber from signals from the ultrasound transducers.2. A plasticizing unit as set forth in wherein there is provided a single ultrasound transducer array with ultrasound transducers disposed along the screw prechamber at a side of the wall claim 1 , wherein the ultrasound transducer array is in the form of a transmitting and receiver array.3. A plasticizing unit as set forth in wherein two mutually opposite ultrasound transducer arrays with ultrasound transducers disposed along the screw prechamber are mounted at the wall of the plasticizing cylinder claim 1 , wherein an ultrasound transducer array is in the form of a transmitter array and the oppositely disposed ultrasound transducer array is in the form of a receiver array.4. A plasticizing unit as set forth in wherein the ...

METHOD OF MEASURING TRUE SHEAR VISCOSITY PROFILE OF MOLDING MATERIAL IN CAPILLARY AND MOLDING SYSTEM PERFORMING THE SAME

The present disclosure provides a method of measuring a true shear viscosity profile of a molding material in a capillary and a molding system performing the same. The method includes the operations of: determining a setpoint temperature of the molding material before injecting into the capillary; obtaining an initial shear viscosity profile at the setpoint temperature with respect to a shear rate of the molding material; fitting an initial temperature profile with respect to the shear rate according to the initial shear viscosity based on Cross William-Landel-Ferry model; fitting a first shear viscosity profile and a first temperature profile with respect to the shear rate according to the initial temperature profile based on the Cross-WLF model; and setting the first shear viscosity profile as the true shear viscosity profile when a difference between the first temperature profile and the initial temperature profile is not greater than a threshold. 1. A method of measuring a true shear viscosity profile of a molding material in a capillary , comprising:determining a setpoint temperature of the molding material before injecting into the capillary;obtaining an initial shear viscosity profile at the setpoint temperature with respect to a shear rate of the molding material;fitting an initial temperature profile with respect to the shear rate according to the initial shear viscosity based on a Cross William-Landel-Ferry (Cross-WLF) model;fitting a first shear viscosity profile and a first temperature profile with respect to the shear rate according to the initial temperature profile based on the Cross-WLF model; andsetting the first shear viscosity profile as the true shear viscosity profile when a difference between the first temperature profile and the initial temperature profile is not greater than a predetermined threshold.2. The method of claim 1 , further comprising:fitting a second shear viscosity profile and a second temperature profile with respect to the ...

MOULD FOR INJECTING THERMOPLASTICS AND METHOD FOR USING SAID MOULD

Mould for producing plastic items obtained by the injection of thermoplastic material of the “hot melt” or polyamide type, the mould being made of flexible vulcanised silicone, rubber or other elastomers, the mould being formed by two parts which, when facing each other and attached, generate a series of compartments and channels that allow for the introduction of the melted thermoplastic material and the filling of the cavities with the shape of the item desired, and, in turn, allow for a vacuum to be generated, also removing the inside air from the mould by means of a series of conduits and channels; and a method or methodology for producing said plastic items by means of said mould, allowing for the reproduction of short and medium series of items produced with plastic materials, and in which a control system and a mould incorporating a means to be identified can be added to the method. 1. A mould for injecting thermoplastics , wherein the mould is formed by an upper mould or lid , and a lower mould or base , wherein the mould is made of flexible vulcanised silicone , rubber or other elastomers , and wherein , when the upper mould and the lower mould are facing each other and attached by fasteners or brackets , a distribution chamber for melted thermoplastic material is generated which is supplied by a central , reinforced pass through opening on the upper mould , and a plurality of distribution channels exit from the chamber , which are connected to the cavities by feeders with the shape of the item that is to be manufactured , and wherein tiny conduits or slots emerge from each cavity , which are connected to the perimetral vacuum channel having a vacuum outlet pass through opening on the lower mould.2. The mould claim 1 , according to claim 1 , wherein the upper mould or lid has a reinforcement flange on the central part of the external side.3. The mould claim 1 , according to claim 1 , wherein the lower mould or base has a central reinforcement area on the ...

Injection molding machine and method for assisting in manipulation of injection molding machine

An injection molding machine is provided, wherein a display device displays screens requesting an operator to manipulate the injection molding machine in order in accordance with a manipulation procedure for the injection molding machine from automatic setting of initial molding conditions until actual molding of a molded article, and a guidance showing the manipulation procedure.

TEMPERATURE CONTROL APPARATUS FOR PREFORM, TEMPERATURE CONTROL METHOD FOR PREFORM, RESIN CONTAINER AND METHOD FOR PRODUCING RESIN CONTAINER

The outer circumferential surface of a bottom of a preform and a lower site of a trunk continuous with the bottom is mechanically brought into intimate contact with a cooling pot to undergo reliable cooling. The trunk excluding the lower site of the trunk continuous with the bottom is heated to a predetermined temperature by a heating block When blow-molded, the so treated preform can provide a container having a bottom of a desired thickness and having a uniformly stretched thin-walled trunk. 1. A temperature control apparatus for a preform , comprising:a temperature control pot contacting an outer circumferential surface of a bottom of a bottomed preform and a part of a peripheral portion of the bottomed preform continuous with the bottom;a temperature control block disposed outside the peripheral portion of the bottomed preform; andpressing drive means for allowing the temperature control pot to intimately contact and hold a bottom wall surface of the bottomed preform.2. A temperature control apparatus for a preform , comprising:a temperature control pot for holding an outer circumferential surface of a bottom of a bottomed preform and a part of a peripheral portion of the bottomed preform continuous with the bottom;a temperature control block disposed outside the peripheral portion of the bottomed preform;a temperature control core inserted into an inside of the bottomed preform, and having a leading end portion contacting an inner circumferential surface of the bottom and the part of the peripheral portion continuous with the bottom; andpressing drive means for holding a bottom wall surface of the bottomed preform between the temperature control pot and the temperature control core, and bringing the temperature control pot and the temperature control core close to each other relatively so as to make intimate contact with the bottom and the part of the peripheral portion and hold them.3. The temperature control apparatus for a preform according to claim 2 , ...

Mold thickness adjusting apparatus of injection molding machine

An injection molding machine is provided with an automatic mold thickness adjusting apparatus. The amount of compensation of the position of a rear platen that is adjusted at the time of installation of a mold is determined by calculating the thermal expansion of the mold that is expected to occur at the completion of a rise in temperature based on the difference in temperature between the mold temperature at the time of mold thickness adjustment and the mold temperature at the time of injection molding. Then, the rear platen is moved to the compensated position thus determined.

Injection Molding with Localized Heating in Flow Challenge Regions

Injection molding at substantially constant pressure with the use of rapid heating techniques, such as induction heating, at strategic locations within a mold to heat molding surfaces in a manner that mitigates problems typically associated with flow filling challenges. 1. A method , comprising:injecting a molten thermoplastic material into a mold cavity defined by a mold of an injection molding apparatus;obtaining, using a sensor, during the injecting, data associated with the molten thermoplastic material flowing at a pre-determined location of the mold cavity; andcontrolling, via a controller communicatively connected to the sensor, a heating source arranged to locally heat at least a portion of the mold, the controlling being based on the obtained data.2. The method of claim 1 , wherein the obtaining comprises detecting the molten thermoplastic material flowing at the pre-determined location.3. The method of claim 1 , wherein the obtaining comprises detecting no molten thermoplastic material flowing at the pre-determined location.4. The method of claim 1 , wherein the obtaining comprises detecting at least one of a temperature claim 1 , a melt pressure claim 1 , or a flow rate of the molten thermoplastic material flowing at the pre-determined location.5. The method of claim 1 , wherein the pre-determined location corresponds to a location that is upstream of or at a flow filling challenge.6. The method of claim 5 , wherein the pre-determined location is upstream or downstream of the location of the flow filling challenge.7. The method of claim 5 , wherein the location of the flow filling challenge comprises at least one of a rib claim 5 , a boss claim 5 , a corner claim 5 , an obstacle claim 5 , a transition claim 5 , or a living hinge.8. The method of claim 5 , wherein the flow filling challenge corresponds to a pre-determined amount of the molten thermoplastic material experiencing freeze-off at the pre-determined location.9. The method of claim 1 , wherein ...

METHOD FOR INJECTION MOLDING USING REDUCED MELT TEMPERATURES

A molded article is formed using an injection molding apparatus by heating a thermoplastic material to a melt temperature, injecting the heated thermoplastic material into at least one mold cavity of an injection molding apparatus at a substantially constant pressure, and cooling the thermoplastic material to an ejection temperature. The thermoplastic material is heated to a reduced melt temperature which is less than a minimum conventional melt temperature. 1. A method of forming a molded article using an injection molding apparatus , comprising:heating a thermoplastic material to a reduced melt temperature;injecting the heated thermoplastic material into at least one mold cavity of an injection molding apparatus, wherein the at least one mold cavity is filled at a substantially constant pressure; andcooling the thermoplastic material in the at least one mold cavity to an ejection temperature to form the molded article, wherein:the thermoplastic material is acrylonitrile butadiene styrene (ABS) and the reduced melt temperature is about 5° C. to about 30° C. less than a minimum conventional melt temperature of the ABS and an energy required to form the molded article is at least about 3% less than an energy required to form the molded article using a conventional injection molding process at the minimum conventional melt temperature, orthe thermoplastic material is nylon 6 and the reduced melt temperature is about 5° C. to about 30° C. less than a minimum conventional melt temperature of the nylon 6, and an energy required to form the molded article is at least about 3% less than an energy required to form the molded article using a conventional injection molding process at the minimum conventional melt temperature, orthe thermoplastic material is polycarbonate (PC) and the reduced melt temperature is about 5° C. to about 50° C. less than a minimum conventional melt temperature of the PC, and an energy required to form the molded article is at least about 3% less ...

Injection molding machine

An injection molding machine includes a belt transmission mechanism (mold opening/closing mechanism, ejector mechanism, screw drive mechanism, injection mechanism) configured to transmit drive force from a driving shaft (driving pulley) to a driven shaft (driven pulley) by means of a belt. The injection molding machine includes: a cover covering part or entirety of the belt; and a sensor attached to the cover and configured to detect an abnormality of the belt.

METHOD AND DEVICE FOR ASSISTING MOLDING CONDITION SETTING TECHNICAL FIELD

A database is previously set which is related to oxidation induction times Tg indicating the deteriorations of individual resins R based on the combinations of a plurality of oxidation induction conditions X including at least different types of resins R. and different heating temperatures TH, when the molding condition is set, oxidation induction time derivation processing is performed such that an oxidation induction time Tg based on oxidation induction conditions X including at least the resin R which is used and the heating temperature TH which is set is determined from the database and assistance processing is performed in which the determined oxidation induction time Tg is compared with a residence time Ts until the molten resin R is charged into a mold that is calculated from the set molding condition and in which when the oxidation induction time Tg is shorter than the residence time Ts, the molding condition is corrected so as to shorten the residence time Ts or to prolong the oxidation induction time Tg. 1. A method for assisting a molding condition setting which is used when a molding condition is set in a molding machine for charging a resin molten by heating at a predetermined heating temperature into a mold so as to mold the resin ,wherein a database is previously set which is related to oxidation induction times indicating deteriorations of individual resins based on combinations of a plurality of oxidation induction conditions including at least different types of resins and different heating temperatures,wherein, when the molding condition is set, oxidation induction time derivation processing is performed such that an oxidation induction time based on oxidation induction conditions including at least the resin which is used and the heating temperature which is set is determined from the database, andwherein assistance processing is performed in which the determined oxidation induction time is compared with a residence time until the molten resin is ...

SYSTEM FOR MICRO-MOLDING ARTICLES

A system is disclosed for micro-molding articles. The system melts and pre-pressurizes thermoplastic material to a first level, within a plasticizing barrel. The melt pressure of the thermoplastic material is manipulated to a second level, within a hot runner. The melt pressure of the thermoplastic material is manipulated to an ultra-cavity packing pressure within a valve gate nozzle. 1. A system for injection molding articles comprising: melt and pre-pressurize thermoplastic material to a first level, within a plasticizing barrel of the micro-molding machine;', 'manipulate melt pressure of the thermoplastic material to a second level, within a hot runner of a manifold of the micro-molding machine, wherein the pressure within the manifold is held constant throughout the cycle time;', 'manipulate the melt pressure of the thermoplastic material to an ultra-cavity packing pressure within a micro cavity; and', 'increase temperature of the thermoplastic material in a cascading manner as the thermoplastic material travels from the plasticizing barrel to exit from a valve gate nozzle to enter the mold cavity., 'a micro-molding machine including a controller; the controller having a processor executing computer readable instructions to2. The system according to claim 1 , wherein pressure at the first level is less than the pressure at the second level claim 1 , and the pressure at the second level is less than the ultra-cavity packing pressure.3. The system according to claim 1 , wherein the processor further executes computer readable instructions to:heat the thermoplastic material to a first temperature before the thermoplastic material exits the plasticizing barrel, wherein the first temperature is more than a melting temperature of the thermoplastic material and less than a processing temperature of the thermoplastic material; andheat the thermoplastic material to a processing temperature after the thermoplastic material exits a manifold but before the thermoplastic ...

Method for producing a composite component

The invention relates to a process for the production of a composite component ( 33 ) which comprises a molding ( 1 ) made of a thermoplastic polymer foam and which comprises a functional layer ( 37 ) made of an unfoamed thermoplastic, comprising the following steps: (e) insertion of the molding ( 1 ) made of thermoplastic polymer foam into a mold ( 3 ), (f) application of a thermoplastic polymer by an injection process, where the pressure during the application of the thermoplastic polymer is smaller than 100 bar.

SYSTEMS AND METHODS FOR AUTOTUNING PID CONTROL OF INJECTION MOLDING MACHINES

In order to reduce oscillations in process variables of an injection molding process, a variable-gain proportional-integral-derivative (PID) controller is utilized to control one or more of the process variables. The injection molding system may also include a tuning controller to automatically tune at least one of the proportional, integral, or derivative gains within a mold cycle. The tuning controller may obtain sensor data that monitors the operation of the injection molding machine to determine an adjustment to at least one of the proportional, integral, or derivative gains. The tuning controller may adjust the gains of the variable-gain PID controller in accordance with the determined adjustment to the at least one of the proportional, integral, or derivative gains. 1. A injection molding system comprising:injection molding machine;a pressure sensor configured to sense an injection pressure;a proportional-integral-derivative (PID) controller operatively connected to the pressure sensor and configured to control the injection pressure of the injection molding machine based upon an error between the sensed injection pressure and a pressure setpoint indicated by a control model, the PID controller having (i) a first gain associated with a proportional component; (ii) a second gain associated with an integral component; and (iii) a third gain associated with a derivative component;at least one other sensor configured to generate sensor data indicative of other operating parameters of the injection molding machine; and obtain, from the at least one other sensor, the generated sensor data;', 'based on the sensor data, determine a gain adjustment for at least one of the first, second, and third gains; and', 'adjust, using the determined gain adjustment, at least one of the first, second, and third gains., 'a tuning controller operatively connected to the at least one other sensor and to the PID controller, the tuning controller configured to2. The injection molding ...

SYSTEMS AND METHODS FOR NORMALIZING PID CONTROL ACROSS INJECTION MOLDING MACHINES

In order to reduce oscillations in process variables of an injection molding process, an injection molding machine may be operatively connected to a model database that stores models of injection molding machines and molds. A tuning controller may set initial gain values of a variable-gain proportional-integral-derivative (PID) controller. To set the initial gains, the tuning controller may be configured to obtain, from the model database, a model for a first and second injection molding machines and a model for a mold. The tuning controller may analyze the models to determine a correlation between injection molding machine parameters and mold cycle performance for the mold. Accordingly, the tuning controller may apply the correlation to determine an initial gain value for a least one of the first, second, and third gains of the PID controller. The tuning controller may then set the initial gain values for the PID controller. 1. An injection molding system comprising:a first injection molding machine including a mold;a model database configured to store models for (i) the first injection molding machine, (ii) a second injection molding machine, and (iii) the mold, wherein the model of the mold includes data associated with historic mold cycles executed by the second injection molding machine using the mold;a proportional-integral-derivative (PID) controller configured to control an injection pressure of the first injection molding machine based upon a mold cycle, the PID controller having (i) a first gain associated with a proportional component; (ii) a second gain associated with an integral component; and (iii) a third gain associated with a derivative component; and obtain, from the model database, the model for the first and second injection molding machines and the model for the mold;', 'analyze the model of the mold and the model of the second molding machine to determine a correlation between injection molding machine parameters and mold cycle performance for ...

SYSTEM FOR THE INJECTION MOULDING OF PLASTIC MATERIAL, PARTICULARLY SUITABLE FOR THE MOULDING OF PIECES HAVING THE FORM OF A SOLID OF REVOLUTION OR SIMILAR, AND CORRESPONDING METHOD

A system for the injection moulding of plastic material is described. The system has an injection device of the hot runner type for the injection of a plastic material, in a molten state, into a mould, a circular diaphragm to distribute evenly and circularly in a cavity of the mould, through a circular injection gate or port, the plastic material injected by the injection device, and control means adapted to control an operation of the moulding system an including a heating inductor and heating means provided to heat and keep at a hot temperature the injection device, and a thermocouple being arranged in an area of the circular injection gate. The control means are adapted to control through the heating inductor a moulding cycle of a piece. The system is particularly suitable for moulding pieces which typically have a form of a solid of rotation with cylindrical outer surfaces, and is configured in an area of the circular injection port so as to avoid a formation of waste or superfluous parts which must be subsequently removed from the piece, once moulded. 11010. System () for the injection moulding of plastic material , in particular of pieces (PZ , PZ-) exhibiting the form of a solid of revolution with external and/or internal cylindrical surfaces or the like , comprising:{'b': 12', '11', '11, 'i': 'b', 'an injection device () for the injection of a plastic material (MP), in the molten state, into a mould (, ); and'}{'b': 13', '11', '11', '25', '12, 'i': 'b', 'a circular diaphragm () for distributing circularly and evenly into the cavity () of the mould (), through an opening or circular injection gate (), the plastic material (MP) that is injected by the injection device ();'}{'b': 21', '22', '23', '24', '21', '22', '25, 'characterized by control means (, , , ), including a heating inductor (), adapted to be driven in frequency, and a temperature sensor (), both arranged in the zone of said circular injection gate (), and'}{'b': 23', '30', '22', '25', '21', '30', ...

Methods of Using Retrofitted Injection Molding Machines with Reduced Pressures

An injection molding machine that uses a mold and a native controller to operate according to an original mold cycle to mold plastic objects is retrofitted with a retrofit controller; the retrofitted machine uses the mold and the retrofit controller to operate according to a retrofit mold cycle to mold plastic objects. The retrofit mold cycle has a maximum injection pressure that is less than a maximum injection pressure of the original mold cycle. The retrofit mold cycle can also have more constant injection pressures than the original mold cycle.

Methods of Using Retrofitted Injection Molding Machines with Reduced Temperatures

An injection molding machine that uses a mold and a native controller to operate according to an original mold cycle to mold plastic objects is retrofitted with a retrofit controller; the retrofitted machine uses the mold and the retrofit controller to operate according to a retrofit mold cycle to mold plastic objects. When molding according to the retrofit mold cycle, the injection molding machine uses lower temperatures, when compared to molding according to the original mold cycle. 1. A method of using an injection molding machine , the method comprising:first, injection molding using a first injection molding machine, a first mold, and a native controller to injection mold production versions of a plastic object according to an original mold cycle for the first mold, the first injection molding machine including an injection unit, a nozzle in fluid communication with the injection unit, and the first mold, which is in fluid communication with the nozzle, wherein the native controller is programmed with at least a portion of the original mold cycle, wherein during the original mold cycle, the first injection molding machine has an average original mold cycle machine temperature profile; andsecond, injection molding using a second injection molding machine, a second mold, and a retrofit controller to injection mold production versions of the plastic object according to a retrofit mold cycle for the second mold, the second injection molding machine including an injection unit, a nozzle in fluid communication with the injection unit, and the second mold, which is in fluid communication with the nozzle, wherein the retrofit controller is programmed with at least a portion of the retrofit mold cycle, wherein during the retrofit mold cycle the second injection molding machine has an average retrofit mold cycle machine temperature profile;wherein the average retrofit mold cycle machine temperature profile is 5-50° C. less than the average original mold cycle machine ...

Injection molding system

An injection molding system includes: an injection molding machine where a shaping mold is installed; a material supply device supplying a material to the injection molding machine; a temperature controller controlling a temperature of the shaping mold; a dryer drying a material stored in the material supply device; a controller controlling the injection molding machine; and a casing. The injection molding machine, the material supply device, the temperature controller, the dryer, and the controller are provided inside the casing. The casing has a caster and is configured to be movable.

Heating module, method for producing a molded part and device for producing a molded part

A heating module for heating at least one film element. The heating module has two or more heating segments with in each case one or more heating elements for heating a first area of the film element assigned to the respective heating segment, wherein the heating module and/or at least one of the heating segments includes at least one sensor for measuring the state of the heating of the film element.

Apparatus and method for producing plastics material pre-forms from a thermoplastic plastics material

The invention relates to an apparatus for producing plastics material pre-forms from a thermoplastic plastics material () with a device () for providing flowable thermoplastic plastics material (), a hot runner tool () arranged downstream of the device () and a conveying device () having a plurality of cavities (), wherein the hot runner tool () has at least one hot runner (), which is formed in a face () of the hot runner tool (), and the conveying device () has a face () in which openings () for filling the cavities () are formed, wherein the faces () of the hot runner tool () and of the conveying device () are capable of being orientated with respect to each other in such a way that they slide one over the other, wherein at least one opening () of a cavity () is always positioned above the hot runner (). 112. An apparatus for producing of plastics material pre-forms from a thermoplastic plastics material () with{'b': 1', '12, 'a device () for providing flowable thermoplastic plastics material (),'}{'b': 2', '1, 'a hot runner tool () arranged downstream of the device () and'}{'b': 4', '3, 'a conveying device () having a plurality of cavities (),'}wherein{'b': 2', '5', '6', '2', '4', '7', '8', '3', '6', '7', '2', '4', '8', '3', '5, 'the hot runner tool () has at least one hot runner (), which is formed in a face () of the hot runner tool (), and the conveying device () has a face () in which openings () for filling the cavities () are formed, wherein the faces (, ) of the hot runner tool () and of the conveying device () are capable of being orientated with respect to each other in such a way that they slide one over the other, wherein at least one opening () of a cavity () is always positioned above the hot runner ().'}22910115. The apparatus according to claim 1 , wherein the hot runner tool () has adjustment elements ( claim 1 , claim 1 , ) by means of which the cross-section of the hot runner () is variable over the longitudinal extension thereof.3910115. The ...

SYSTEM AND APPARATUS FOR FORMING A COLLAPSIBLE STRUCTURE MADE FROM EXPANDABLE MATERIAL

There is disclosed a mould for forming a collapsible container from an expandable material, the container comprising, when assembled, at least a base and a two pairs of a side walls extending at right angles from opposing sides of the base, the mould comprising: a first mould member and a second mould member movable with respect to each other between an open and a closed moulding position to define a mould cavity; a control means for delivering expandable material into said mould cavity and for delivering steam to facilitate expansion of the expandable material within said mould cavity to form said container; and a plurality of anvils mounted on a rear surface of at least one of the first mould member and/or second mould member, each anvil being movable so as to be extended into the mould cavity so as to form one or more hinges in the expandable material at predetermined locations within the mould cavity; wherein the mould cavity defined by the first mould member and the second mould member is a three-dimensional representation of an inside-out configuration of the assembled container. 1. A mould for forming a collapsible container from an expandable material , the container comprising , when assembled , at least a base and a two pairs of a side walls extending at right angles from opposing sides of the base , the mould comprising:a first mould member and a second mould member movable with respect to each other between an open and a closed moulding position to define a mould cavity;a control means for delivering expandable material into said mould cavity and for delivering steam to facilitate expansion of the expandable material within said mould cavity to form said container; anda plurality of anvils mounted on a rear surface of at least one of the first mould member and/or second mould member, each anvil being movable so as to be extended into the mould cavity so as to form one or more hinges in the expandable material at predetermined locations within the mould ...

Temperature Control Device

A temperature control device is provided that is capable of making the temperature of a metallic mold speedily reach a target temperature. 1. A temperature control device that controls a temperature of a medium circulated through an object via a pipeline , the device comprising:a first medium circulating portion that circulates the medium via a first pipeline;a second medium circulating portion that circulates the medium via a second pipeline;a third medium circulating portion that circulates the medium via a third pipeline;a switching portion that switches the medium circulated through the object by selecting any one of the first pipeline, the second pipeline and the third pipeline; anda pressure supply portion that supplies a required pressure through a pressure pipe communicating with each of the first pipeline, the second pipeline and the third pipeline.2. The temperature control device according to claim 1 ,wherein the pressure supply portion is provided with a pressure control portion that controls the pressure supplied by the pressure supply portion, andthe pressure control portion controls the pressure so as to be not less than a saturated water vapor pressure corresponding to the highest one of temperatures at which the media circulating through the first pipeline, the second pipeline and the third pipeline come to a boil.3. The temperature control device according to claim 2 ,wherein a temperature detection portion is provided that detects the temperatures of the media circulating through the first pipeline, the second pipeline and the third pipeline, andthe pressure control portion controls the pressure so as to be not less than a saturated water vapor pressure corresponding to the highest one of temperatures of the media detected by the temperature detection portion.4. The temperature control device according to claim 3 ,wherein a calculation portion is provided that repetitively calculates the highest saturated water vapor pressure of saturated water ...

METHOD FOR MONITORING A TEMPERATURE CONTROL MEDIA SUPPLY

In a method of monitoring an apparatus for temperature control media supply of a tool of an injection molding machine, the apparatus for temperature control media supply has a feed and a return, between which at least one temperature control conduit is arranged, wherein at least one through-flow sensor is arranged. At least one temperature control conduit. At least one pressure drop is measured in the at least one temperature control conduit. At least one hydraulic resistance and/or at least one resistance change in the at least one temperature control conduit is calculated on the basis of at least one volume flow measured with the at least one through-flow sensor and on the basis of the at least one measured pressure drop, and the at least one hydraulic resistance and/or the at least one resistance change is visually represented. 1. A method of monitoring an apparatus for temperature control media supply of a tool of an injection molding machine , wherein the apparatus for temperature control media supply has a feed and a return , between which at least one temperature control conduit is arranged , wherein at least one through-flow sensor is arranged in each of the at least one temperature control conduit , whereinat least one pressure drop is measured in the at least one temperature control conduit,at least one hydraulic resistance and/or at least one resistance change in the at least one temperature control conduit is calculated on the basis of at least one volume flow measured with the at least one through-flow sensor and on the basis of the at least one measured pressure drop, andthe at least one hydraulic resistance and/or the at least one resistance change is visually represented.2. A method as set forth in claim 1 , wherein the at least one pressure drop is measured by a respective pressure sensor in the feed and a pressure sensor in the return.3. A method as set forth in claim 1 , wherein the at least one pressure drop is measured by two respective pressure ...

CLOSED LOOP CONTROL OF AUXILIARY INJECTION UNIT

A method and apparatus of controlling commencement of an injection of a melt stream of moldable material from an auxiliary injection unit. A sensor is placed in an injection molding system to sense a condition related to an injection of a first melt stream of a first moldable material provided by a primary injection unit. Commencement of a second melt stream of a second moldable material from the auxiliary injection unit is initiated upon the sensed condition related to the injection of the first melt stream being detected at a preselected value. The sensed condition may be a pressure, velocity or temperature of the first melt stream as provided by a direct sensor, a force or strain on a hot runner component as provided by an indirect sensor or the occurrence of a function of the injection molding system as provided by a functional sensor. 1. A method of injection molding , the method comprising:monitoring a condition related to an injection of a first melt stream of moldable material from a primary injection unit having a primary injection unit controller with a sensor in communication with a secondary injection unit controller; andsignaling a secondary injection unit with the secondary injection unit controller to adjust an injection of a second melt stream of moldable material from the secondary injection unit in response to the monitored condition of the first melt stream.2. The method of injection molding according to claim 1 , wherein the monitoring the condition related to the injection of the first melt stream of moldable material comprises measuring the condition related to the injection of the first melt stream at preset time intervals.3. The method of injection molding according to claim 1 , further comprising:adjusting the injection of the second melt stream of moldable material to be proportionate to the injection of the first melt stream of moldable material.4. The method of injection molding according to claim 1 , further comprising:determining ...

System for manufacturing molded product and apparatus for taking out molded product

There are provided a molded product manufacturing system that can be easily adapted to IoT and an apparatus for taking out a molded product that can promote adaptation of the molded product manufacturing system to IoT. A molded product manufacturing system includes an injection molding machine, an apparatus for taking out a molded product, and one or more peripheral devices arranged around the apparatus to operate together during operation of the apparatus. The apparatus includes a communication unit operable to transmit internal data to an external server via a communication network. The communication unit of the apparatus transmits external data, which is output from the one or more peripheral devices, to external servers together with information on a die.

MOLDING SYSTEM AND METHOD

A molding system and a method for operation of the molding system are provided. The method includes flowing a molten polymeric material into a shot tuning chamber from an upstream device, adjusting a temperature of and/or pressure applied to the molten polymeric material in the shot tuning chamber, and flowing the molten polymeric material from the shot tuning chamber into a mold cavity. 1. A system comprising:a shot tuning chamber configured to receive a molten polymeric material from an upstream device, to adjust one or more of a temperature of and a pressure applied to the molten polymeric material to create an adjusted molten polymeric material, and to dispense the adjusted molten polymeric material.2. The system of claim 1 , where the upstream device is an injection device or an extrusion device claim 1 , the injection device or the extrusion device is included in the system claim 1 , and the temperature of and/or the pressure applied to the molten polymeric material is adjusted independent of the injection device or the extrusion device.3. The system of claim 1 , where the upstream device is an injection device including a tuning chamber valve and a barrel housing a screw and is configured to receive the molten polymeric material and to adjust a position of the screw in the barrel and to adjust the tuning chamber valve to regulate a flowrate of the molten polymeric material into the shot tuning chamber from the injection device.4. The system of claim 1 , where the upstream device is configured to receive a blowing agent from a blowing agent delivery assembly and form a molten single phase solution (SPS) of the blowing agent dissolved in the molten polymeric material.5. The system of claim 4 , where the blowing agent includes a physical blowing agent or a chemical blowing agent.6. The system of claim 5 , where the physical blowing agent is a supercritical fluid (SCF).7. The system of claim 1 , further comprising an adjustable mold runner configured to regulate ...

METHOD FOR INJECTION-MOLDING THERMOSETTING RESIN COMPOSITION

The present invention is a method that enables continuous injection molding of a thermosetting resin composition and reuse of an unnecessary part produced during the molding. The method includes injecting a thermosetting resin composition into a mold while a curing reaction of the resin composition is incomplete. The thermosetting resin composition is then cooled in the mold until becoming semi-cured and removed as a semi-cured product from the mold. The semi-cured product is separated from the unnecessary part and separately heated to progress a thermosetting reaction of the thermosetting resin composition. The unnecessary part may be used as a reworked raw material by regrinding the unnecessary part and mixing it with a fresh thermosetting resin composition. Then, a resultant mixture is used to perform a new injection molding. 1. A method for injection-molding a thermosetting resin composition , comprising:injecting a thermosetting resin composition into a mold while a curing reaction of the thermosetting resin composition is incomplete; andremoving the injected thermosetting resin composition in a state of a semi-cured product from the mold.2. The method for injection-molding a thermosetting resin composition according to claim 1 , wherein the thermosetting resin composition is converted to the state of the semi-cured product in the mold.3. The method for injection-molding a thermosetting resin composition according to claim 1 , wherein after the thermosetting resin composition is injected and before being removed from the mold claim 1 , the thermosetting resin composition is cooled in the mold until becoming solidified.4. The method for injection-molding a thermosetting resin composition according to claim 3 , wherein after the solidified thermosetting resin composition is removed from the mold claim 3 , the thermosetting resin composition is separated by cutting into a part to be an article and an unnecessary part.5. The method for injection-molding a ...

A STACK MOLD

There is provided a mold stack (). The mold stack () comprises a core insert assembly (), the core insert assembly () for defining an inner portion of a molded article to be molded. The core insert assembly () includes a sensor assembly () configured to measure the in-mold pressure using entire active surface of the core insert assembly (). 1100. A mold stack () comprising:{'b': 102', '102', '102', '120', '102, 'a core insert assembly (), the core insert assembly () for defining an inner portion of a molded article to be molded, the core insert assembly () including a sensor assembly () configured to measure the in-mold pressure using entire active surface of the core insert assembly ().'}2100102122106106122. The mold stack () wherein the core insert assembly () comprises a core inner part member () and a core insert () , the core insert () for defining a portion of a molded article and the core inner part member () for attachment to a core plate.3100122106. The mold stack () of claim 2 , wherein the core inner part member () and the core insert () ate coupled via a threaded connection.4100120124122125124. The mold stack () of claim 1 , wherein the sensor assembly () comprises a load cell () attached to the core inner part member () and a load cell cover () configured to physically envelope a portion of the load cell ().51001021221061061229124122106. The mold stack () of claim 4 , wherein the core insert assembly () comprises a core inner part member () and a core insert () claim 4 , the core insert () for defining a portion of a molded article and the core inner part member () for attachment to a core plate claim 4 , and wherein the load cell ) is sandwiched in-between the core inner part member () and the core insert ().6100122106. The mold stack () of claim 5 , wherein the core inner part member () and the core insert () ate coupled via a threaded connection.7100124. The mold stack () of claim 4 , wherein the load cell () comprises a pressure transducer.8120106. ...

Method for finding a target conveying capacity of a pumping system

A method of finding a target conveying capacity of a pumping includes a temperature-control flow through a temperature-control channel carried out according to a control variable by using a throttle as an actuating element such that a temperature-control volume flow remains substantially constant. A conveying flow of the pumping system is measured, and a pump starting from a starting conveying capacity independent of the control of the temperature-control volume flow is driven such that a conveying capacity of the pumping system is reduced to a reduced conveying capacity. Then, a check is made to find whether the conveying flow remains substantially constant and, if this is the case, the reduced conveying capacity is determined to be the target conveying capacity or. If this is not the case despite the control of the temperature-control volume flow, the starting conveying capacity is determined to be the target conveying capacity.

MOLD SYSTEM INCLUDING SEPARABLE, VARIABLE MOLD PORTIONS FOR FORMING CASTING ARTICLE FOR INVESTMENT CASTING

A mold system and method for forming a casting article for investment casting is disclosed. The mold system includes a mold for receiving therein a selected core chosen from a plurality of varied cores. The mold includes a plurality of separable mold portions that are coupleable together to create the mold and configured to form a sacrificial material from a sacrificial material fluid about the selected core. At least one selected separable mold portion of the plurality of separable mold portions includes a set of varied interchangeable versions of the at least one selected separable mold portion. Each varied interchangeable version of the selected separable mold portion is configured to accommodate a different core of the plurality of varied cores. A number of systems for controlling a temperature of the mold are also disclosed. 1. A mold system for forming a casting article for investment casting , the mold system comprising:a mold for receiving therein a selected core chosen from a plurality of varied cores, the mold including a plurality of separable mold portions that are coupleable together to create the mold and configured to form a sacrificial material from a sacrificial material fluid about the selected core,wherein at least one selected separable mold portion of the plurality of separable mold portions includes a set of varied interchangeable versions of the at least one selected separable mold portion, each varied interchangeable version of the selected separable mold portion configured to accommodate a different core of the plurality of varied cores.2. The mold system of claim 1 , wherein the plurality of separable mold portions include fasteners to selectively couple the plurality of separable mold portions together.3. The mold system of claim 1 , wherein each separable mold portion is additively manufactured.4. The mold system of claim 3 , wherein the additive manufacturing is selected from stereolithography and direct metal laser melting.5. The mold ...

MOLD SYSTEM INCLUDING SEPARABLE, VARIABLE MOLD PORTIONS FOR FORMING CASTING ARTICLE FOR INVESTMENT CASTING

A mold system and method for forming a casting article for investment casting is disclosed. The mold system includes a mold for receiving therein a selected core chosen from a plurality of varied cores. The mold includes a plurality of separable mold portions that are coupleable together to create the mold and configured to form a sacrificial material from a sacrificial material fluid about the selected core. At least one selected separable mold portion of the plurality of separable mold portions includes a set of varied interchangeable versions of the at least one selected separable mold portion. Each varied interchangeable version of the selected separable mold portion is configured to accommodate a different core of the plurality of varied cores. A number of systems for controlling a temperature of the mold are also disclosed. 1. A mold system for forming a casting article for investment casting , the mold system comprising:a mold for receiving therein a core, the mold including a plurality of sacrificial material fluid input zones configured to receive a sacrificial material fluid to form a sacrificial material about the core; anda sacrificial material heating system configured to heat a plurality of flows of the sacrificial material fluid to different temperatures,wherein one sacrificial material fluid input zone receives one of the plurality of flows of the sacrificial material fluid at a first temperature and another sacrificial material fluid input zone receives another of the plurality of flows of the sacrificial material fluid at a second, different temperature.2. The mold system of claim 1 , wherein the mold includes a plurality of separable mold portions that are coupleable together to create the mold and configured to form the sacrificial material from the sacrificial material fluid about the core claim 1 ,wherein each separable mold portion includes at least one sacrificial material fluid input zone.3. The mold system of claim 2 , wherein a selected ...

INSERT MOLDING AND INSERT MOLDING QUALITY DETERMINATION DEVICE

An insert molding includes a lithium-ion battery, temperature measurement element and a pressure measurement element disposed close to the lithium-ion battery to sense temperature and pressure around the lithium-ion battery during insert molding; and a molding resin that covers the lithium-ion battery, the temperature measurement element, the pressure measurement element and a cover member. 1. An insert molding comprising:an insert component;a sensor disposed close to the insert component to sense a state around the insert component during insert molding; anda molding resin that covers the insert component and the sensor.2. The insert molding according to claim 1 , wherein the insert component is a secondary battery.3. The insert molding according to claim 1 , wherein the sensor is in contact with the molding resin.4. The insert molding according to claim 1 , wherein the sensor includes a temperature measurement element.5. The insert molding according to claim 1 , wherein the sensor includes a pressure measurement element.6. The insert molding according to claim 1 , further comprising a cover member that covers the insert component.7. The insert molding according to claim 1 , wherein:the insert component is a secondary battery;the sensor includes at least one of a temperature measurement element and a pressure measurement element; andthe insert molding further comprises a substrate on which the secondary battery, the sensor and an electronic component driven by the secondary battery are mounted, the electronic component including a transmission unit that transmits data sensed by the sensor to an external device.8. The insert molding according to claim 7 , further comprising a cover member that covers the secondary battery.9. An insert molding quality determination device that determines quality of an insert component after the insert component is resin-molded claim 7 , the insert molding quality determination device comprising:a sensing signal input unit that is ...

Real Time Material and Velocity Control in a Molding System

A system includes a cavity, an injection nozzle configured to inject material into the cavity, and a plurality of sensors at sensor locations. Each of the plurality of sensors is configured to measure parameters at one of the sensor locations. The system lacks a strain gauge. The system further includes a controller configured to control a flow rate of the injection of material into the cavity. The controller is configured to receive the measured parameters and compare the received information to predetermined curves. The controller is configured to control the flow rate when the measured parameters deviate from the predetermined curves. 1. A system comprising:a cavity;an injection nozzle configured to inject material into the cavity;a plurality of sensors at sensor locations, wherein each of the plurality of sensors is configured to measure parameters at one of the sensor locations during a first molding cycle, and wherein the system lacks a strain gauge; wherein the controller is configured to receive the measured parameters and compare the measured parameter to predetermined curves during the first molding cycle, and', 'wherein during the first molding cycle, the controller is configured to control the flow rate when the measured parameters deviate from the predetermined curves., 'a controller configured to control a flow rate of injection of material into the cavity,'}2. The system of claim 1 , further comprising a processor configured to create the predetermined curves through finite element analysis (“FEA”) calculations.3. The system of claim 2 , wherein the processor configured is to perform the FEA calculations on an FEA model of a mold.4. The system of claim 3 , wherein the FEA model of the mold includes virtual sensors at locations corresponding to the sensor locations.5. The system of claim 1 , further comprising a processor configured to calculate a weight of the material inside the cavity as a function of statistical processing of one of a machine ...

Temperature control device of injection molding machine

A PID control system 10 is included to determine the deviation value e of a detection temperature PV and a set temperature SV, to perform PID control such that the deviation value e becomes zero and to output, to the corresponding heating portion 4 or cooling portion 5 , only one of a heating operation amount yh which is generated by an I operation output, a D operation output, the deviation value e and a heating side proportional band to perform control on the heating portion 4 and a cooling operation amount yc which is generated by an I operation output, a D operation output, the deviation value e and a cooling side proportional band to perform control on the cooling portions 5 , whichever amount is relatively larger.

Multi-step molding process for electronic device chassis

An electronic device chassis is manufactured with a multi-step molding process. The process includes at least two separate injection molding steps. During the first step, an electronic component is placed in a first mold, and a first material is injected into the first mold to create a first chassis that surrounds part of the electronic component. In the second step, the first chassis is placed in a second mold, and a second material is injected into the second mold to create a second chassis that surrounds part of the first chassis. The second step can be performed at a higher pressure than the first step, which can produce a smoother exterior surface. Furthermore, the first chassis shields the electronic component from the higher pressure of the second step, which reduces the likelihood of damage to the electronic component.

METHOD FOR EVENLY DISTRIBUTING PLASTIC MELT IN A HOT RUNNER SYSTEM USING STRAIN GAUGES

A hot runner injection molding apparatus, and method of use, is disclosed in which strain gauges are provided in the temperature zones of the hot runner injection molding apparatus and a hot runner controller creates a target strain profile, detects deviations from the target strain profile in any temperature zone based on the strain readings provided by the strain gauges in each temperature zone, and instructs correction of deviations from the target strain profile in any deviating temperature zone by adjusting the heat produced by a heater or heaters in the deviating temperature zone. The target strain profile may be based on a median or average of strain readings provided over time by the strain gauges in each temperature zone. A hollow installation tube for placing the strain gauges in the hot runner injection molding apparatus is also disclosed. 112-. (canceled)13. A method of evenly distributing molten thermoplastic material to multiple cavities using a hot runner system in a molding apparatus comprising:creating, by one or more processors, a target strain profile for a molding process of a molding apparatus;receiving, by the one or more processors, strain readings reflecting changes in strain during a molding process as an output from at least one strain gauge in each of a plurality of temperature zones of the molding apparatus,monitoring, by the one or more processors, the strain readings for each temperature zone in order to detect a deviation from the target strain profile by a temperature zone;if a deviation is detected, determining, by the one or more processors, whether the deviation exceeds a deviation limit;if the deviation exceeds a deviation limit, adjusting heat produced by one or more heaters in the deviating temperature zone in order to correct the deviation,and amplifying the changes in strain sensed by at least one of the at least one strain gauge in each of the plurality of temperature zones using an alternative material insert filling an ...

CLOSED LOOP CONTROL OF AUXILIARY INJECTION UNIT

A method and apparatus of controlling commencement of an injection of a melt stream of moldable material from an auxiliary injection unit. A sensor is placed in an injection molding system to sense a condition related to an injection of a first melt stream of a first moldable material provided by a primary injection unit. Commencement of a second melt stream of a second moldable material from the auxiliary injection unit is initiated upon the sensed condition related to the injection of the first melt stream being detected at a preselected value. The sensed condition may be a pressure, velocity or temperature of the first melt stream as provided by a direct sensor, a force or strain on a hot runner component as provided by an indirect sensor or the occurrence of a function of the injection molding system as provided by a functional sensor. 1. A method of injection molding , the method comprising:injecting a first melt stream of moldable material with a primary injection unit having a primary injection unit controller;monitoring a condition related to the first melt stream of moldable material with a sensor in communication with a secondary injection unit controller, andsignaling a secondary injection unit with the secondary injection unit controller to inject a second melt stream of moldable material when the monitored condition related to the first melt stream of moldable material reaches a preselected value.2. The method of injection molding according to claim 1 , wherein the monitoring step the condition related to the first melt stream of moldable material comprises monitoring a pressure of the first melt stream of moldable material.3. The method of injection molding according to claim 1 , wherein the monitoring the condition related to the first melt stream of moldable material comprises monitoring a temperature of the first melt stream of moldable material.4. The method of injection molding according to claim 1 , wherein the monitoring the condition related to ...

POLYLACTIC ACID MOULDING PROCESS

Novel polylactic acid biopolymer systems and methods of producing products with polylactic acid biopolymers are disclosed. Products produced according to the systems and methods disclosed herein have enhanced deflection temperature and improved mechanical performance when compared to conventional injection moulding processes. Systems and methods for compounding polylactic acid biopolymer and creating an object using a polylactic acid biopolymer by extrusion and injection moulding process are described. 1. A method for manufacturing an object , the method comprising:creating a blended resin by combining a crystallization agent and a polylactic acid polymer,reducing the moisture content of the blended resin to a threshold,injecting the blended resin into a heated mould,maintaining a mould temperature from about 90° C. to about 115° C. to create an object; andejecting the object from the mould.2. The method of claim 1 , wherein the crystallization agent is a lactic acid oligomer.3. The method of claim 2 , wherein the lactic acid oligomer comprises one of a free hydroxyl and/or carboxyl terminal functional groups.4. The method of claim 2 , wherein the lactic acid oligomer comprises one of an esterified hydroxyl and/or carboxyl terminal functional groups.5. The method of claim 1 , wherein the crystallization agent comprises from about 1% to about 15% by weight of the blended resin.6. The method of claim 1 , wherein the blended resin further comprises a non-petrochemical based filler claim 1 , and wherein the non-petrochemical based filler comprises from about 1% to about 20% by weight of the blended resin.7. The method of claim 6 , wherein the non-petrochemical based filler is Calcium Carbonate.8. The method of claim 1 , wherein the polylactic acid polymer comprises from about 65% to about 98% by weight of the blended resin.9. The method of claim 1 , further comprising:monitoring the mould temperature;adjusting the rate of heat transfer to the mould in response to the ...

DIAGNOSIS SYSTEM AND METHOD FOR TEMPERING DEVICES

A diagnosis method for identification or localization of errors in tempering devices for tempering of systems includes providing tempering devices each comprising one or more first sensors and one or more components for securing an operation of the systems with the tempering device, and one or more second sensors for measuring a state of the tempering device or ambient conditions around the tempering device, determining the tempering device to be checked with a diagnosis procedure, decoupling the tempering device from the system, connecting the tempering device to a defined consumer, and conducting the diagnosis procedure for the tempering device by using a diagnosis program, where the diagnosis program checks the components and the first and second sensors of the tempering device in a pre-determined sequence stored in the diagnosis program until the error in the tempering device is identified or localized. 1. A diagnosis method for identification or localization of errors in tempering devices for tempering of systems , comprisingproviding tempering devices each comprising one or more first sensors and one or more components for securing an operation of the systems with the tempering device, and one or more second sensors for measuring a state of the tempering device or ambient conditions around the tempering device;determining the tempering device to be checked with a diagnosis procedure;decoupling the tempering device from the system;connecting the tempering device to a defined consumer; andconducting the diagnosis procedure for the tempering device by using a diagnosis program,wherein the diagnosis program checks the components and the first and second sensors of the tempering device in a pre-determined sequence stored in the diagnosis program until the error in the tempering device is identified or localized.2. The diagnosis method of claim 1 , wherein the conducting of the diagnosis procedure comprises at least one of checking and calibrating the one or more ...

RESIN TRANSFER MOLDING WITH RAPID CYCLE TIME

A process for resin transfer molding (RTM) with staggered injection of a resin is provided that injects resin into a plurality of injection ports of a mold. The temperature and pressure applied to the mold are controlled during injection to limit promote rapid filling of the mold cavity. The injection ports are activated for injecting the resin in any order of individually, in groups, or pairings. Fibers are readily added to the mold separately or within the resin. Cycle times of from 1 to 5 minutes are provided for the process. 1. A process for resin transfer molding (RTM) with staggered injection of a resin containing reinforcing fibers , the process comprising:providing a multiport RTM mold having a mold cavity, an exhaust port, and a plurality of injection ports, all of the injection ports positioned only orthogonally to the exhaust port;injecting said resin containing reinforcing fibers into the mold cavity from the plurality of only orthogonally positioned injection ports controlling the temperature and pressure applied to said mold; andwherein said plurality of injection ports are activated for injecting said resin in any order of individually or in groups.2. The process of wherein said resin is at least one of an epoxy resin claim 1 , an unsaturated polyester resin claim 1 , a polyvinylester resin claim 1 , a phenolic resin claim 1 , a guanamine resin claim 1 , a polyimide resin claim 1 , a bismaleimide triazine resin claim 1 , a furan resin claim 1 , a polyurethane resin claim 1 , a polydiarylphthalate resin claim 1 , a melamine resin claim 1 , a urea resin claim 1 , or an amino resin.3. The process of wherein said resin further comprises fibers.4. The process of wherein said fibers are at least one of glass claim 3 , carbon claim 3 , or other synthetic fibers.5. The process of wherein said fibers are natural fibers.6. The process of wherein said natural fibers are at least one of coconut fibers claim 5 , bamboo fibers claim 5 , sugar cane fibers claim 5 , ...

APPARATUS FOR CHECKING A STATE OF A MACHINE PART

Apparatus for checking a state of a machine part of a shaping machine, comprising an evaluation unit, at least one power loss sensor for ascertaining a power loss measurement signal which is representative of a power loss in and/or at the machine part, and at least one movement sensor for ascertaining a movement measurement signal which is representative of a movement of the machine part, wherein the evaluation unit is adapted to compute a damage indicator for the machine part from the power loss measurement signal and from the movement measurement signal. 1. Apparatus for checking a state of a machine part of a shaping machine , comprisingan evaluation unit,at least one power loss sensor for ascertaining a power loss measurement signal which is representative of a power loss in and/or at the machine part, andat least one movement sensor for ascertaining a movement measurement signal which is representative of a movement of the machine part,wherein the evaluation unit is adapted to compute a damage indicator for the machine part from the power loss measurement signal and from the movement measurement signal.2. Apparatus as set forth in comprising a wear sensor claim 1 , preferably a particle counter or oil condition sensor claim 1 , for ascertaining the wear of the machine part claim 1 , wherein that ascertained wear can be communicated as a wear measurement signal to the evaluation unit which additionally takes account of that wear measurement signal for calculating the damage indicator.3. Apparatus for checking a state of a machine part of a shaping machine comprisingan evaluation unit, anda wear sensor for ascertaining the wear of the machine part, wherein a wear measurement signal which is representative of that ascertained wear (VS) can be communicated to the evaluation unit,wherein the evaluation unit is adapted to compute a damage indicator for the machine part from the wear measurement signal.4. Apparatus as set forth in comprisingat least one power loss ...

POLYMERIC MATERIAL COMPRISING MODIFIED LIGNIN

A polymeric material comprising a first polymer and a second polymer where the first polymer is a natural or a synthetic polymer and the second polymer is modified lignin. The modified lignin is modified with an alkyl containing group via linker wherein the linker is an ether group and wherein the alkyl containing group is derived from fatty acid methyl ester. 1. A polymeric material comprising a first polymer and a second polymer wherein the first polymer is a natural or a synthetic polymer and the second polymer is modified lignin;wherein the modified lignin is modified by alkylation of the lignin via a linkerwherein the linker is an ester; wherein the esterification is obtained using an esterification agent wherein said esterification agent is a fatty acid containing an unsaturated bond.2. The material according to wherein the amount of modified lignin is 1-99 wt % claim 1 , such as 3 wt % or more claim 1 , or 5 wt % or more claim 1 , or 10 wt % or more claim 1 , or 15 wt % or more claim 1 , or 20 wt % or more claim 1 , or 25 wt % or more claim 1 , or 30 wt or more claim 1 , or 35 wt % or more claim 1 , or 40 wt % or more claim 1 , or 45 wt % or more claim 1 , or 50 wt % or more claim 1 , or 90 wt % or less claim 1 , or 85 wt % or less claim 1 , or 80 wt % or less claim 1 , or 75 wt % or less claim 1 , or 70 wt % or less claim 1 , or 65 wt % or less claim 1 , or 60 wt % or less.3. The material according to any one of to wherein the first polymer is a polyolefin.4. The material according to wherein the polyolefin is polyethylene or polypropylene.5. The material according to any one of or wherein the first polymer is a polyester such as polyethylene terephthalate or a polynitrile such as polyacrylonitrile (PAN) claim 3 , or a polycarbonate.6. The material according to wherein the amount of the first polymer is 1-99 wt % claim 3 , such as 3 wt % or more claim 3 , or 5 wt % or more claim 3 , or 10 wt % or more claim 3 , or 15 wt % or more claim 3 , or 20 wt % or more ...

PLASTICIZING DEVICE

A plasticizing device includes a drive motor, a rotor that is rotated by the drive motor and has a groove formed face with a groove formed therein, a barrel that is opposed to the groove formed face and has a communication hole, a heating portion that heats a material in a pellet form supplied between the groove and the barrel, and a control unit that controls the drive motor and the heating portion so as to plasticize the material supplied between the groove and the barrel and cause the material to flow out from the communication hole. The heating portion has a first heating portion and a second heating portion disposed closer to the communication hole than the first heating portion, and the barrel has a first region and a second region that is closer to the communication hole than the first region. The control unit individually controls the first heating portion and the second heating portion so that a temperature of the second region is higher than a temperature of the first region. 1. A plasticizing device , comprising:a drive motor;a rotor that is rotated by the drive motor and has a groove formed face with a groove formed therein;a barrel that is opposed to the groove formed face and has a communication hole;a heating portion that heats a material in a pellet form supplied between the groove and the barrel; anda control unit that controls the drive motor and the heating portion so as to plasticize the material supplied between the groove and the barrel and cause the material to flow out from the communication hole, whereinthe heating portion has a first heating portion and a second heating portion disposed closer to the communication hole than the first heating portion,the barrel has a first region and a second region that is closer to the communication hole than the first region, and the control unit individually controls the first heating portion and the second heating portion so that a temperature of the second region is higher than a temperature of the ...

TEMPERATURE CONTROL DEVICE FOR A SHAPING TOOL AND METHOD OF CONTROLLING THE SAME

A method of temperature control of a shaping tool or components of a shaping working machine is performed by a temperature control medium disposed in at least one temperature control branch of a temperature control system. A previously ascertained relationship between geometrical data of the at least one temperature control branch and through-flow amounts of the temperature control medium is provided, and a reference through-flow amount is set by the previously ascertained relationship for the geometrical data of the at least one temperature control branch. 1. A method of temperature control of a shaping tool or components of a shaping working machine by means of a temperature control medium disposed in at least one temperature control branch of a temperature control system , wherein a previously ascertained relationship between geometrical data of the at least one temperature control branch and through-flow amounts of the temperature control medium is provided and a reference through-flow amount is set by means of the previously ascertained relationship for the geometrical data of the at least one temperature control branch.2. A method as set forth in wherein the geometrical data include at least a diameter—or in the case of non-circular cross-sections a characteristic dimension equivalent to the diameter—of a passage of the at least one temperature control branch.3. A method as set forth in wherein the previously ascertained relationship is expressed by means of Reynolds numbers claim 1 , a Reynolds number is predetermined and the reference through-flow amount is determined on the basis of the predetermined Reynolds number.4. A method as set forth in wherein the through-flow amount is so set that the resulting Reynolds number is greater than or equal to the predetermined Reynolds number.5. A method as set forth in wherein a temperature of the temperature control medium is taken into consideration for expressing the previously ascertained relationship by means of ...

CASSETTE MOLD TYPE INJECTION MOLDING MACHINE

The cassette mold type injection molding machine controls a first temperature control circuit to supply a heat medium having a heating temperature from a first heating device to a matrix supply path, controls a second temperature control circuit to supply the heat medium having a cooling temperature from a second heating device to the core cavity supply path, and performs cassette mold cool down control in which a bypass control valve is controlled to connect a bypass path and a main body supply path, such that a second heating device or a core cavity supply path is connected to a main body supply path, and thus the heat medium having the heating temperature is supplied to the matrix and the heat medium having the cooling temperature is supplied to a cassette mold main body and a core cavity portion. 1. A cassette mold type injection molding machine which comprises a cassette mold and a matrix in which the cassette mold is removably installed , and the cassette mold performing injection molding using a mold having a core cavity portion configured with a core portion and a cavity portion forming a molding space corresponding to a shape of a desired molded article , and a cassette mold main body which is a portion of the cassette mold other than the core portion and the cavity portion , the cassette mold type injection molding machine comprising:a first temperature control circuit having a first heating device which maintains a heat medium at a heating temperature, a matrix supply path which supplies the heat medium having the heating temperature from the first heating device to the matrix, and a main body supply path which supplies the heat medium having the heating temperature from the first heating device to the cassette mold main body,a second temperature control circuit having a second heating device which maintains the heat medium at a cooling temperature or the heating temperature, and a core cavity supply path which supplies the heat medium from the second ...

APPARATUS FOR DETECTING DEFECT OF MOLDED PRODUCT IN MOLD-TAKEOUT ROBOT

Provided is an apparatus for measuring a weight of a molded product in advance by using a weight sensor when the molded product is absorbed by an absorption apparatus provided on a robot arm or before the molded product is transferred to a conveyer, so as to reduce operating processes, to reduce equipment costs, and improve productivity. Also, provided is an apparatus for measuring a surface temperature of the molded product or a mold by using a temperature measuring apparatus in the absorption apparatus in order to detect a defect according to a temperature difference, and thus, a separate apparatus for measuring temperature is not necessary, and the operating processes are reduced and the productivity is improved greatly. 1. An apparatus for detecting a defect in an injection mold robot , for detecting whether a molded product is defective by measuring a weight and a temperature of the molded product after separating the molded product by using absorption tools , the apparatus comprising:a weight measuring apparatus comprising a frame connected to the robot, an installation plate formed on the frame, load cells formed on the installation plate, an absorption crossbar connected to the load cells, support bars provided on opposite ends of the absorption crossbar, and the absorption tools formed on the support bars; anda temperature sensor transfer apparatus provided on the support bar.2. The apparatus of claim 1 , wherein the temperature sensor transfer apparatus comprises:a crossbar connected to the support bars;a forward and backward shaft connected to the crossbar;a bracket connected to the forward and backward shaft; anda temperature sensor connected to the bracket.3. The apparatus of claim 1 , wherein the absorption tools absorb one of a mold or a molded product.4. The apparatus of claim 2 , wherein the support bar comprises a vertical recess formed in a vertical direction to adjust a vertical height of the crossbar.5. The apparatus of claim 2 , wherein the ...

APPARATUS FOR MEASURING SURFACE TEMPERATURE OF MOLDED PRODUCT

Provided is an apparatus for determining whether a molded product is defective by sensing a surface temperature of a mold or the molded product in a contact type or a non-contact type using an infrared ray, without inserting a temperature sensor in the mold. In an injection mold robot transfer apparatus that includes absorption tools for absorbing a mold and transferring a molded product after determining whether the molded product is defective, the apparatus includes a support bar for fixing the absorption tools and including a vertical recess, a crossbar fixed by the vertical recess of the support bar, a forward and backward shaft fixed by the crossbar, a bracket fixed by the forward and backward shaft, and a temperature sensor fixed on the bracket.

Injection Molding Apparatus with Integrated Actuator Electronic Drive

An injection molding apparatus ( 10 ) comprising: an actuator ( 940, 941, 942 ) comprised of a rotor ( 940 r, 941 r, 942 r ) having a drive axis (Y) and a driver ( 940 dr, 941 dr, 942 dr ) receiving electrical energy or power from an electrical drive ( 940 d, 941 d, 942 d ), the electrical drive ( 940 d, 941 d, 942 d ) comprising an interface that receives and controllably distributes electrical energy or power in controllably varied amounts to the driver ( 940 dr, 941 dr, 942 dr ), the actuator including a housing ( 940 h, 941 h, 942 h ) within, on or to which the electrical drive ( 940 d, 941 d, 942 d ) is mounted, the housing ( 940 h, 941 h, 942 h ) being mounted in proximity or disposition relative to the heated manifold ( 40 ) such that one or the other or both of the housing ( 940 h, 941 h, 942 h ) and the electrical drive ( 940 d, 941 d, 942 d ) are in substantial heat communication or contact with the heated manifold ( 40 ).

INJECTION MOLDING OF CROSSLINKING POLYMERS

Non-time dependent measured variables are used to effectively determine an optimal hold profile for an expanding crosslinking polymer part in a mold cavity. A system and/or approach may first inject molten expanding crosslinking polymer into a mold cavity, then measure at least one non-time dependent variable during an injection molding cycle. Next, the system and/or method commences a hold profile for the part, and upon completing the hold profile, the part is ejected from the mold cavity, whereupon a cure profile is commenced. 1. An expanding crosslinking polymer injection molding system comprising:an injection molding machine comprising an injection unit and a mold forming a mold cavity, the injection unit adapted to receive and inject a molten expanding crosslinking plastic material into the mold cavity to form a molded part;a controller adapted to control operation of the injection molding machine; andone or more sensors coupled to the injection molding machine and the controller;wherein at least one of the one or more sensors is adapted to measure at least one non-time dependent variable during the injection mold cycle, wherein the controller is adapted to commence a hold profile for the expanding crosslinking polymer part and is further adapted to cause the molded part to be ejected from the mold cavity upon completing the hold profile and commence a cure profile for the molded part.2. The system of claim 1 , wherein the controller commences the hold profile by commencing the hold profile when the measured at least one non-time dependent variable reaches a first threshold value claim 1 , restricting additional molten expanding crosslinking polymer from being injected into the mold cavity claim 1 , and terminating the hold profile when the measured at least one non-time dependent variables reaches a second threshold value.3. The system of claim 2 , wherein the first threshold value is indicative of the mold cavity being substantially full of molten expanding ...

METHOD FOR MICRO-MOLDING ARTICLES

A method is disclosed for micro-molding articles. The method comprises melting and pre-pressurizing thermoplastic material to a first level, within a plasticizing barrel. The melt pressure of the thermoplastic material is manipulated to a second level, within a hot runner. The melt pressure of the thermoplastic material is manipulated to an ultra-cavity packing pressure within a valve gate nozzle. 1. A method for injection molding articles , the method comprising:melting and pre-pressurizing thermoplastic material to a first level, within a plasticizing barrel;manipulating melt pressure of the thermoplastic material to a second level, within a hot runner of a manifold prior to entering a mold cavity; providing an increased thermoplastic melt density; andmanipulating the melt pressure of the thermoplastic material to an ultra-cavity packing pressure within a micro cavity.2. The method according to claim 1 , wherein pressure at the first level is less than the pressure at the second level claim 1 , and the pressure at the second level is less than the ultra-cavity packing pressure.3. The method according to claim 1 , further comprising increasing temperature of the thermoplastic material in a cascading manner as the thermoplastic material travels from the plasticizing barrel to exit from a valve gate nozzle to enter the mold cavity.4. The method according to claim 1 , further comprising:heating the thermoplastic material to a first temperature before the thermoplastic material exits the plasticizing barrel, wherein the first temperature is more than a melting temperature of the thermoplastic material and less than a processing temperature of the thermoplastic material;heating the thermoplastic material to a processing temperature after the thermoplastic material exits the manifold but before the thermoplastic material exits a valve gate nozzle.5. The method according to claim 1 , further comprising:heating the thermoplastic material to a first temperature before the ...

Process for the production of polyurethane composite components

A composite and process for the production of a composite component, comprising a) a support of a thermoplastic composition, and b) at least one polyurethane layer in direct contact with the support.

METHOD FOR SETTING UP A MOLDING SYSTEM

The present disclosure provides a method for operating a molding system. The molding system includes a molding machine and a mold disposed on the molding machine, wherein the mold has a mold cavity for being filled with a molding material from the molding machine. The method comprises a step of obtaining a predetermined state waveform expressing a predetermined volumetric variation of the molding material. Next, the method further comprises obtaining a measured pressure and a measured temperature of the molding material in the mold cavity while performing a molding process for filling the molding material into the mold cavity. Next, the method includes obtaining a detected volumetric property of the molding material corresponding to the measured pressure and the measured temperature. Subsequently, the method comprises displaying the detected volumetric property of the molding material with the predetermined state waveform. 1. A method for operating a molding system , the molding system comprising a molding machine and a mold disposed on the molding machine , the mold having a mold cavity for being filled with a molding material from the molding machine , the method comprising:obtaining a predetermined state waveform expressing a predetermined volumetric variation of the molding material;obtaining a measured pressure and a measured temperature of the molding material in the mold cavity while performing a molding process for filling the molding material into the mold cavity;obtaining a detected volumetric property of the molding material corresponding to the measured pressure and the measured temperature; anddisplaying the detected volumetric property of the molding material with the predetermined state waveform.2. the method of claim 1 , further comprising:obtaining a plurality of measured pressures and a plurality of measured temperatures of the molding material in the mold cavity while performing the molding process to form a detected state waveform expressing a ...

INJECTION BLOW MOLDING METHOD AND INJECTION BLOW MOLDING APPARATUS FOR HOLLOW CONTAINER

In a cooling adjustment step of cooling a preform held within an injection space to a predetermined temperature, cooling intensity for an injection core mold is reduced as compared with cooling intensity for an injection cavity mold 1. A blow molding method , comprising:an injection molding step of injecting a resin material into an injection space defined by an injection cavity mold and an injection core mold, while cooling the injection cavity mold and the injection core mold, to form a preform;a cooling adjustment step of cooling the preform held within the injection space to a predetermined temperature;a transport step of mold-releasing the preform, with the injection core mold being inserted in the preform, from the injection cavity mold and also transporting the mold-released preform to a blow cavity mold; anda blow molding step of blow molding the preform within the blow cavity mold to form a hollow container,wherein at least in the cooling adjustment step, cooling intensity for the injection core mold is reduced as compared with cooling intensity for the injection cavity mold.2. The blow molding method according to claim 1 , whereinfor at least a partial period during the cooling adjustment step, cooling of the injection core mold is stopped, whereby the cooling intensity for the injection core mold is reduced.3. The blow molding method according to claim 2 , whereinover an entire period of the cooling adjustment step, the cooling of the injection core mold is stopped.4. The blow molding method according to claim 1 , claim 1 , whereinthe injection cavity mold and the injection core mold are cooled by flowing a temperature controlled cooling medium through flow paths provided in the injection cavity mold and the injection core mold, andan amount of the temperature controlled cooling medium flowed through the injection core mold is decreased as compared with the injection cavity mold, whereby the cooling intensity for the injection core mold is reduced.5. ( ...

CASTING TOOL, FOR EXAMPLE CORE SHOOTING TOOL OR PERMANENT MOULD, AND CORRESPONDING CASTING METHOD

A casting tool, for example a core shooting tool or a permanent mould, having an upper tool part and a lower tool part, which on opposite sides each have at least one engraving formed as a shell engraving and which form a mould cavity, characterized in that the shell engraving on an outer side facing away from the mould cavity comprises at least one physical sensor which is configured to measure a physical quantity with respect to a material accommodated in the mould cavity. Furthermore, a corresponding casting method is described. 1. A casting tool comprising an upper tool part and a lower tool part , which on opposite sides each have at least one engraving formed as a shell engraving and which form a mould cavity , wherein the shell engraving on an outer side facing away from the mould cavity includes at least one physical sensor which is configured to measure a physical quantity with respect to a material accommodated in the mould cavity.2. The casting tool according to claim 1 , in which the physical sensor comprises a temperature sensor thermally coupled to the shell engraving claim 1 , wherein the casting tool has at least one heating element thermally coupled to the shell engraving and a control unit which is configured to adjust a heating power of the heating element depending on a measurement signal from the temperature sensor.3. The casting tool according to claim 1 , in which the physical sensor comprises a density sensor mechanically coupled to the shell engraving for determining the density of a material shot into the mould cavity claim 1 , wherein the control unit is configured to adjust the heating power of the heating element depending on a measurement signal from the density sensor.4. The casting tool according to claim 1 , in which the shell engraving has a wall thickness at least in the area of a measuring field of the sensor between 0.5 and 15 mm claim 1 , preferably between 0.5 and 10 mm and especially preferably between 0.5 and 3 mm.5. The ...

CLAMPING DEVICE OF INJECTION MOLDING MACHINE

An adaptor plate is provided between a platen and a mold to measure a temperature of each of divided regions obtained by dividing the adaptor plate into a plurality of regions and adjust a temperature for each of the regions. By doing so, it is possible to adjust the temperature at points closer to the center of the mold than tie bars. Further, by adjusting the temperature of the adaptor plate provided between the platen and the mold, it is possible to precisely adjust a tie bar balance and a platen parallelism even during molding. 1. A clamping device of an injection molding machine in which a rear platen and a fixed platen are coupled by a plurality of tie bars and in which a movable platen is arranged to be guided by the tie bars , the clamping device comprising:an adaptor plate which is provided between the fixed platen and a fixed-side mold to be fixed to the fixed platen, and/or between the movable platen and a movable-side mold to be fixed to the movable platen;a temperature measuring unit which measures a temperature of each of a plurality of divided regions obtained by dividing the adaptor plate into a plurality of regions;a temperature adjusting unit which adjusts the temperature of each of the plurality of divided regions of the adaptor plate; anda control unit which causes the temperature adjusting unit to adjust the temperature of each of the plurality of divided regions of the adaptor plate.2. The clamping device of the injection molding machine according to claim 1 , wherein:distance sensors which measure distances between the fixed platen and the movable platen are further provided above the adaptor plate, and near four corners of the mold and/or near points at which a center line of the mold and an outer periphery of the mold intersect; andthe control unit controls the temperature adjusting unit to adjust the temperature of each of the divided regions of the adaptor plate such that the distances between the fixed platen and the movable platen ...

Injection molding machine, method of displaying molding conditions in injection molding machine, and recording medium for storing control program of injection molding machine

The disclosure provides an injection molding machine which is controlled by a control device according to molding conditions and injects and fills a flowable molding material into a mold to perform molding. The control device includes an input control device, a molding condition storage device and a display control device. The input control device receives input of molding conditions input from the input device, the molding condition storage device stores a plurality of molding conditions, and the display control device displays on a display device a list of each item included in each of the plurality of molding conditions in a table format represented by rows or columns.

SYSTEM AND METHODS FOR A FOAMING PROCESS

A foaming process and a method for operation of the foaming process are provided. The method includes flowing a molten polymeric material into a mold from an upstream device, receiving the molten polymeric material in a cavity of the mold, and maintaining a repeatable, uniform pressure profile as the molten polymeric material is delivered into the mold. 1. A method for a foaming process comprising;flowing a molten polymeric material into a mold from an upstream device;receiving the molten polymeric material in a cavity of the mold; andmaintaining a repeatable, uniform pressure profile after the molten polymeric material is delivered into the mold.2. The method of claim 1 , wherein maintaining the pressure profile includes adjusting the flowing of the molten polymeric material in response to a measured pressure in a nozzle of the upstream device while the material is injected into the mold and maintaining positive pressure on the molten polymeric material in the mold after injection of a predetermined amount of the molten polymeric material into the mold is completed.3. The method of claim 2 , further comprising removing the positive pressure on the material in the mold after a duration of time elapses.4. The method of claim 1 , wherein flowing the molten polymeric material into the mold includes injecting a material with a preset and fixed combination of pellet types claim 1 , the types of pellets having different compositions and/or sizes.5. The method of claim 1 , wherein flowing the molten polymeric material into the mold includes forming a molten single phase solution (SPS) from a blowing agent and the molten polymeric material claim 1 , the blowing agent dissolved in the molten polymeric material.6. The method of claim 1 , wherein maintaining the pressure profile of the nozzle is achieved by adjusting a rate that the molten polymeric material is injected into the cavity by the upstream device claim 1 , the profile including a fixed pressure claim 1 , and ...

METHOD AND DEVICE FOR THE VARIOTHERMAL TEMPERATURE CONTROL OF INJECTION MOULDS

A method for the variothermal temperature control of an injection mould using a temperature control device, the method including at least the following steps: in a learning phase, determining a temperature control characteristic of the temperature-controllable system including at least the injection mould and the temperature control device, in order to obtain individual reference values for the system, with which the temperature control device can be controlled in order to obtain a nominal temperature profile; and in a production phase: temperature control of the injection mould with the reference values determined during the learning phase; determining deviations of an actual temperature profile of the injection mould in relation to the nominal temperature profile during the production cycle and calculating corrected reference values from these deviations; and carrying out a resulting production process using the corrected reference values. 1. A method for the variothermal temperature control of an injection mould using a temperature control device having at least the steps: 'determining a temperature control characteristic of the system which is to be temperature-controlled comprising at least the injection mould and the temperature control device, in order to obtain individual control values for the system, with which control elements of the temperature control device can be actuated in order to obtain a nominal temperature profile and', 'A) In a learning phase temperature control of the injection mould with the control values determined during the learning phase;', 'determining deviations of an actual temperature profile of the injection mould in relation to the nominal temperature profile during the production cycle and calculating corrected control values or respectively control times for the control elements from these deviations;', 'carrying out a resulting production process using the corrected control values., 'B) In a production phase2. The method ...

METHOD FOR THE QUALITY CONTROL AND/OR TRACKING OF AN INJECTION MOLDED PART PRODUCED IN A PRODUCTION CYCLE, AND PLASTIC INDUSTRIAL FACILITY FOR THIS PURPOSE

Method for the quality control and/or tracking of an injection molded part produced in a production cycle using at least one processing machine of the plastic processing industry and a plastic processing facility, in which production devices or stations arranged upstream or downstream are connected together via a network. Each individual injection molded part or a specified number of injection molded parts is assigned a quality value composed of multiple quality values in that each device or station in the production chain ascertains or generates its own quality value and extends same by the transmitted values of each previous device or previous station and forwards same as the new quality value to the following device or following station or in that a separate collecting station, in particular a hardware and software (COQ chain of quality), requests the quality values, the device values and.or material values thereof, from the individual devices or stations or is transmitted thereto, and the collecting station puts said the values into correlation. 131. A method for quality control and/or follow-up of an injection-molded part produced in a production cycle with preferably at least one processing machine of the plastics-processing industry , as well as upstream and/or downstream production resources or devices or stations , for example reservoirs or hoppers for a material , in particular granules , granule dryers , material distributors metering devices , temperature control units , flow controllers , robots and/or camera systems and/or measuring devices for quality control , which are interconnected preferably via a network , wherein each individual injection-molded part or a specific number , in particular a batch , of injection-molded parts is assigned a quality contribution consisting of a plurality of quality contributions , where each device or station in the production chain determines or generates its own quality contribution , consisting of a device ...

INJECTION MOLDING APPARATUS WITH HEATED MOLD CAVITIES

An injection molding apparatus and an method for the manufacture of moldable articles having an injection manifold, a plurality of hot runner nozzles, a first nozzle heater, a plurality of mold cavities positioned to receive molten material from the plurality of the hot runner nozzles, each mold cavity having at least one mold gate orifice and a mold cavity heater surrounding each mold cavity at least partially and a thermocouple associated with the mold cavity to measure directly or indirectly a temperature generated by the mold cavity heater. 1. An injection molding apparatus for the manufacture of moldable articles comprising:an injection manifold having at least one manifold input melt channel and a plurality of manifold output melt channels, the manifold being heated by at least one manifold heater controlled by at least one manifold thermocouple,a plurality of hot runner nozzles coupled to the manifold;a first nozzle heater and a first nozzle thermocouple secured to each hot runner nozzle;a plurality of mold cavities positioned to receive molten material from the plurality of hot runner nozzles, each mold cavity having at least one mold gate orifice having in particular a third axis, the mold cavity including a mold core and a mold cavity wall, where an outer surface of the mold core and the mold cavity wall define the mold cavity space that is formed in a mold closed position to receive molten material;a mold cavity heater surrounding each mold cavity or/and mold core at least partially;a thermocouple associated with the mold cavity to measure directly or indirectly a temperature generated by the mold cavity heater and/or by the mold core heater; anda controller linked to the first nozzle thermocouple and to the first nozzle heater and further linked to the mold cavity heater and to the mold cavity thermocouple, wherein an activation of the mold heater and a deactivation of the mold heater during an injection cycle or any change in the temperature provided by ...

Injection-Molding Apparatuses Containing Integrally Formed Thermocouples

Thermocouples and their associated thermocouple junctions can be integrated via freeform fabrication into various parts of injection-molding apparatuses, including the nozzles. Unitary monolithic integration of thermocouples allows thermocouple junctions to be located highly proximate to the locations where temperature monitoring is desired, particularly, near the tips of injection-molding nozzles, which has conventionally been difficult or impossible to achieve. An injection-molding nozzle with one or more integrated thermocouples, a hot-runner manifold with injection-molding nozzles, having integrated thermocouples, monolithically integrated with the manifold as a single part using a freeform fabrication process, and a separately formed injection-molding nozzle having at least one integrated thermocouple and a robust electrical connection are presented according to various aspects of the invention. 1. An injection-molding apparatus , comprising: at least one melt channel; and', 'a thermocouple having a thermocouple junction formed unitary-monolithically with said body., 'a body manufactured using one or more freeform fabrication processes so as to make said body unitary monolithic, said body including2. The injection-molding apparatus according to claim 1 , wherein said body comprises a nozzle body that includes a melt channel claim 1 , and said thermocouple junction is located proximate to said melt channel within said nozzle body.3. The injection-molding apparatus according to claim 2 , wherein said thermocouple junction is encased within a dielectric material formed unitary-monolithically within said nozzle body.4. The injection-molding apparatus according to claim 3 , wherein said thermocouple further includes a pair of electrical conductors extending from said thermocouple junction and formed unitary-monolithically with said nozzle body.5. The injection-molding apparatus according to claim 4 , wherein said pair of electrical conductors are encased within said ...

HOT RUNNER MOLD DEVICE FOR MOLDING OF ULTRA-THIN ANNULAR RESIN BODY AND MOLD SYSTEM EQUIPPED WITH THE HOT RUNNER MOLD DEVICE

Upper and lower temperature control plates of upper and temperature control plate members are attacked so as to interpose a manifold body of a manifold therebetween. Upper and lower oil flow circuits provided in the respective upper and lower temperature control plates control the temperature of the manifold body heated by a plurality of coil heaters to a temperature suitable for preventing carbonization of a molten resin flowing in a flow-dividing type flow path of the manifold body. 1. A hot runner mold device for molding of an ultra-thin annular resin body , comprising:a fixed mold including a fixed-side body formed from a predetermined mold metal material so as to include a manifold having a manifold body; anda movable mold including a movable-side body formed from the predetermined mold metal material so as to have a molding surface abutting against a molding surface of said fixed-side body,wherein said fixed mold includes:a fixed-side nest formed of a predetermined metal material for a nest, said fixed-side nest being accommodated in a molding-surface side accommodating hole portion formed in said fixed-side body from its molding surface;a hot runner including a runner flow path provided in said manifold body and to which a predetermined molding resin material is injected as a molten resin from a resin injection molding machine, and a plurality of nozzles extending from a plurality of outflow path portions formed in said runner flow path toward the molding surface of said fixed-side body through the interior thereof, said hot runner flowing to a plurality of said nozzles the molten resin flowing through said runner flow path and flowing out from a plurality of the outflow path portions of said runner flow path,a heater provided in said manifold body together with said runner flow path to heat said manifold body, andboth side temperature control plate members including both side temperature control plates stacked on said manifold body from both surfaces thereof ...

Wireless sensor for electromagnetically shielded applications and method of communication

A wireless sensor system is described which can be used to measure temperature and/or pressure within an electromagnetically shielded environment. The sensor system includes an embedded processor which intermittently transmits data from the sensors. In electromagnetically shielded environments, the processor transmits the data when the electromagnetically shielding components are moved into a non-shielding configuration.

INSPECTION METHOD FOR INJECTION MOLDING DEVICE, TEST MOLD, AND INSPECTION SYSTEM

An inspection method for an injection molding device includes: a first step of acquiring a first detection value from a sensor using a test mold having the sensor, the sensor measuring a temperature or pressure of a molten material injected from a first injection molding device into a cavity section demarcated by a fixed mold and a moving mold; a second step of injecting a molten material from a second injection molding device into the cavity section and acquiring a second detection value from the sensor; and a third step of performing an inspection using the first detection value and the second detection value. 1. An inspection method for an injection molding device , the inspection method comprising:a first step of acquiring a first detection value from a sensor using a test mold having the sensor, the sensor measuring a temperature or pressure of a molten material injected from a first injection molding device into a cavity section demarcated by a fixed mold and a moving mold;a second step of injecting a molten material from a second injection molding device into the cavity section and acquiring a second detection value from the sensor; anda third step of performing an inspection using the first detection value and the second detection value.2. The inspection method according to claim 1 , whereinthe second injection molding device is a device that is the first injection molding device used over years, andin the third step, change in state with time of the first injection molding device is inspected.3. The inspection method according to claim 1 , whereinthe first injection molding device and the second injection molding device are different devices, andin the third step, a variation in state of the first injection molding device and the second injection molding device is inspected.4. The inspection method according to claim 1 , whereinin the third step, an abnormality in the second injection molding device is inspected.5. The inspection method according to claim 4 ...

MOULD TOOL HAVING MOVING PARTS

A mould tool () has a first part () defining a first area () of a mould profile, an actuated part () defining a second, adjacent area () of the mould profile, which actuated part is configured to move from a moulding position to an actuated position at the end of each mould cycle to facilitate removal of a moulded component. The actuated part () comprises a temperature control apparatus () configured to control the temperature of the actuated part to influence a clearance (C) between the first part and the actuated part by thermal expansion and/or contraction of the actuated part. 1. A mould tool comprising:a first part defining a first area of a mould profile;an actuated part defining a second, adjacent area of the mould profile, which actuated part is configured to move from a moulding position to an actuated position at the end of each mould cycle to facilitate removal of a moulded component;wherein the actuated part comprises a temperature control apparatus configured to control a temperature of the actuated part to influence a clearance between the first part and the actuated part by thermal expansion and/or contraction of the actuated part.2. A mould tool according to claim 1 , wherein the temperature control apparatus is configured to alternately heat and cool the actuated part.3. A mould tool according to claim 1 , wherein the temperature control apparatus is heated and/or cooled by a heated and/or cooled fluid.4. (canceled)5. A mould tool according to claim 3 , wherein the temperature control apparatus comprises a fluid channel having a heater therein claim 3 , which fluid channel is configured to direct fluid into the actuated part such that heating of the actuated part is carried out by heating fluid passing the heater.6. A mould tool according to claim 5 , wherein the temperature control apparatus comprises a controller configured to switch between a heating mode in which the heater is activated claim 5 , and a cooling mode in which the heater is ...

Biodegradable and Industrially Compostable Injection Molded Microcellular Flexible Foams, and a Method of Manufacturing the Same

A process for injection molded microcellular foaming various flexible foam compositions from biodegradable and industrially compostable bio-derived thermoplastic resins for use in, for example, footwear components, seating components, protective gear components, and watersport accessories wherein a process of manufacturing includes the steps of: producing a suitable thermoplastic biopolymer or biopolymer blend; injection molding the thermoplastic biopolymer or biopolymer blend into a suitable mold shape with inert nitrogen gas; controlling the polymer melt, pressure, temperature, and time such that a desirable flexible foam is formed; and utilizing gas counterpressure in the injection molding process to ensure the optimal foam structure with the least amount of cosmetic defects and little to no plastic skin on the outside of the foamed structure. 120-. (canceled)21. A method for manufacturing a flexible foam , the method comprising:forming a molten polymer from a biodegradable thermoplastic masterbatch, the biodegradable thermoplastic masterbatch comprising one or more thermoplastic biopolymers;dissolving a supercritical fluid in the molten polymer to create a single-phase solution;introducing the single-phase solution into a mold cavity of a molding apparatus;foaming the single-phase solution in the mold cavity by allowing the supercritical fluid to come out of solution, thereby forming a flexible foam; andapplying a pressure to the single-phase solution and maintaining the pressure prior to foaming the single-phase solution in the mold cavity to prevent premature foaming of the single-phase solution.22. The method of claim 21 , wherein the one or more thermoplastic biopolymers comprise one or more of polylactic acid claim 21 , poly(butylene adipate-co-terephthalate) claim 21 , polycaprolactone claim 21 , polyhydroxy alkanoate claim 21 , polybutylene succinate claim 21 , polybutylene succinate adipate claim 21 , polybutylene adipate claim 21 , or combinations ...

HOT RUNNER SYSTEM HAVING MAGNETIC ACTUATORS

Magnetic actuator for actuating at least one valve pin of a hot runner system having a moveable actuation plate, first and second permanent magnets, first and second electromagnets which are fastened opposite to the permanent magnets. The magnetic actuator further comprises first and second insulators mounted to the external sides of the electromagnets for preventing magnetic interference with the hot runner system and for reducing heat transfer from the hot runner system to the magnetic actuator. 1. A magnetic actuator for actuating at least one valve pin of a hot runner system comprising:a moveable actuation plate arranged to reciprocate in a straight line along an axis of the at least one valve pin mounted with a rear end to the moveable actuation plate,first and second permanent magnets fastened on top and bottom faces of the moveable actuation plate,first and second electromagnets fastened opposite to the permanent magnets such, that in an opening position of the at least one valve pin, the first permanent magnet abuts the first electromagnet, and in a closing position of the at least one valve pin, the second permanent magnet abuts the second electromagnet, andfirst and second insulators mounted to the external sides of the electromagnets for preventing magnetic interference with the hot runner system and for reducing heat transfer from the hot runner system to the magnetic actuator.2. The magnetic actuator according to claim 1 , characterized in that the first and second permanent magnets are fastened to the moveable actuation plate such claim 1 , that either south poles (S) or north poles (N) of the permanent magnets are oriented towards the moveable actuation plate.3. The magnetic actuator according to claim 1 , characterized in that the magnetic actuator is mounted in a recess within a back plate.4. The magnetic actuator according to claim 3 , wherein the back plate is a hot runner back plate.5. The magnetic actuator according to claim 1 , characterized in ...