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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 8288. Отображено 100.
16-02-2012 дата публикации

Gear box with variably coupled oscillation and rotation for kneading machine

Номер: US20120039145A1
Автор: Douglas J. Marsh, Gonzalo Marulanda-Paz, John E. Kress, Scott Lee Samborn
Принадлежит: B&P Process Equipment and Systems LLC

A gear box for a reciprocating kneader. A primary rotational gear is attached to a gear box primary shaft and rotates in concert therewith. A secondary rotational gear is engaged with the primary rotation gear and rotates therewith. A secondary shaft is attached to the secondary rotational gear and rotates therewith. A primary oscillation gear is attached to the gear box primary shaft and rotates therewith. A secondary oscillation gear is rotationally engaged with the primary oscillation gear and rotates on the secondary shaft. An eccentric is coupled to the secondary oscillation gear and rotates in concert therewith. A yoke is engaged with the eccentric and oscillates on an axis perpendicular to the secondary shaft in response to the lobe. The gearbox secondary shaft moves along its axis in concert with yoke oscillation. A housing is pivotally attached to the yoke and pivotally attached to a casing at a casing.

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Номер записи: 1
15-03-2012 дата публикации

Molding apparatus and molding method for packaging semiconductor

Номер: US20120061880A1
Автор: Seok-Jae Han
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A molding apparatus for packaging a semiconductor device includes an upper mold having a first cavity, a lower mold having a second cavity corresponding to the first cavity, and a selective flow facilitation unit. The first and second cavities are configured to receive a printed circuit board (PCB). The selective flow facilitation unit is configured to increase a flow of a molding resin in a selective area of the PCB. The flow of the molding resin in the selective area of the PCB is faster than the flow of the molding resin in a non-selective area of the PCB.

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Номер записи: 2
12-04-2012 дата публикации

Apparatus and method for manufacturing multi component plastic molded parts

Номер: US20120086141A1
Автор: Andreas Reitberger, Ludwig Jung, Marco Gruber
Принадлежит: KraussMaffei Technologies GmbH

In a method of making multi-component plastic molded parts, using an apparatus which includes two outer platens with first half-molds, and a middle platen with second half-molds interacting with the first half-molds such as to define cavities in two parting planes for injection of a plastic melt and/or a PUR mixture, one of the first and second half-molds can move in increments relative to the other one of the first and second half-molds, thereby forming different cavities in the parting planes from cycle to cycle. In a first cycle preforms are produced in respective cavities and then held in one of the first and second half-molds as the other one of the first and second half-molds moves in increments. Further components can then be injected into cavities formed in the parting planes from cycle to cycle, while another process step can be executed from cycle to cycle in free half-molds.

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Номер записи: 3
28-06-2012 дата публикации

Injection device

Номер: US20120161360A1
Автор: Kensuke Suenami, Tsuyoshi Inoue
Принадлежит: Kojima Press Industry Co Ltd

An injection device may include an injecting portion, and a material feeding portion having a pelletized resinous material. The material feeding portion includes a cylindrical feeding passage that is communicated with the injecting portion, a screw that is disposed in the feeding passage, and a drive mechanism that is configured to rotate the screw about a rotational axis. When the screw is rotated about the rotational axis by the drive mechanism, the pelletized resinous material can be fed into the injecting portion.

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Номер записи: 4
05-07-2012 дата публикации

Device and method for producing thick-walled moulded plastics parts having reduced shrinkage sites by injection molding or embossing

Номер: US20120171452A1
Автор: Arne Schmidt, Christian Eberle, Marc Poth, Werner Hoess
Принадлежит: Evonik Roehm GmbH

The invention relates to a device and method for producing thick-walled plastic molded parts by injection molding or embossing. The device comprises a mold for injection molding or embossing, having a cavity, and is characterized in that the mold comprises a wall region adjacent to the cavity, and a body removed from the cavity and adjacent to the wall region near the cavity, wherein the body of the mold is designed for a temperature T 1 and the wall region is designed for a temperature T 2 different from the temperature T 1 . According to the method, the temperature T 2 of the wall region of the mold near the cavity is brought to and held at a value greater than the Vicat temperature T v of the plastic molding mass before and/or during the injection process, wherein the temperature T 2 is greater than the temperature T 1 of the mold body, and the temperature T 2 of the wall region near the cavity is brought to a temperature below the Vicat temperature T v of the plastic molding mass during the solidification of the plastic molding mass. The result is thick-walled molded plastic parts, such as optical lenses and the like, having reduced shrinkage sites.

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Номер записи: 5
12-07-2012 дата публикации

Method for controlling multiple shooting pots

Номер: US20120179288A1
Автор: Kevin Wing Hang Leung, Michael David Kershaw
Принадлежит: HUSKY INJECTION MOLDING SYSTEMS LTD

A method ( 300 ) is provided for controlling an injection unit ( 100 ) having a first sub-assembly and a second sub-assembly, first and second sub-assemblies being functionally identical units. The method ( 300 ) includes the steps of appreciating an operational parameter for each of the first and second sub-assemblies, appreciating a target set point ( 146 ) associated with operating each of the first and second sub-assemblies, and when the operational parameter for at least one of the first and second sub-assemblies differs from the target set point ( 146 ), adjusting the operation of the at least one sub-assembly towards the target set point ( 146 ) by a control action. The adaptive control regulator ( 148 ) is operable to modify the control law of one of the first and second sub-assemblies so that the first and second sub-assemblies have substantially equal performance.

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Номер записи: 6
11-10-2012 дата публикации

Injection molding

Номер: US20120256347A1
Автор: Khalid M. Malik
Принадлежит: RPC Containers Ltd

In an injection molding process, the mold parts can be moved relative to each other (separation of the mold parts shown as line 50 ). Injection starts as the mold parts are being moved towards each other (injection pressure shown as line 60 ). The movement of the mold parts stops briefly as injection is completed, and the mold parts are then fully closed.

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Номер записи: 7
08-11-2012 дата публикации

Method of molding a microneedle

Номер: US20120280428A1
Автор: Dennis E. Ferguson, Donald L. Pochardt, Satinder K. Nayar
Принадлежит: 3M Innovative Properties Co

A method of molding a microneedle including providing a mold apparatus having a mold insert having the negative image of at least one microneedle, a compression core, a mold housing configured to allow a reciprocal motion between the mold insert and the compression core. The method includes placing the mold apparatus in a closed position, injecting polymeric material into the closed mold apparatus, compressing the injected polymeric material between the mold insert and the compression core by a reciprocal motion between the compression core and the mold insert, opening the mold, and removing a molded microneedle from the mold. The mold insert has a mold insert height and the molded microneedle has a height that is from about 90% of the mold insert height to about 115% of the mold insert height.

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Номер записи: 8
07-11-2013 дата публикации

Plasticizing System Including Opposite-Facing Surfaces for Contacting Opposite Sides of Solidified-Resin Particle

Номер: US20130294188A1
Автор: Belzile Manon Danielle
Принадлежит: Husky Injection Molding Systems Ltd.

A plasticizing system () for plasticizing a solidified-resin particle (), the plasticizing system (), comprising: (A) opposite-facing surfaces () being spaced apart from each other, and defining, at least in part, a convergence channel () being configured to receive the solidified-resin particle (), and (B) a plunger assembly () being movable, at least in part, relative to the opposite-facing surfaces (), the plunger assembly () being configured to move, at least in part, the solidified-resin particle () relative to the opposite-facing surfaces () along, at least in part, the convergence channel ().

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Номер записи: 9
26-12-2013 дата публикации

Plasticating and Injection Device

Номер: US20130344188A1
Автор: Belzile Manon Danielle
Принадлежит: HUSKY INJECTION MOLDING SYSTMES LTD.

Plasticizing system for plasticizing solidified-resin particle, plasticizing system, comprising: housing assembly providing: (i) melt channel configured to receive solidified-resin particle, and (ii) opposite-facing surfaces spaced apart from each other, and defining, at least in part, convergene channel configured to receive the solidified-resin particle. Opposite-facing surfaces and the convergence channel form part of melt channel. Plunger assembly is movable, at least in part, relative to opposite-facing surfaces. Plunger assembly configured to move, at least in part, solidified-resin particle relative to opposite-facing surfaces along, at least in part, convergence channel. In response to relative movement between solidified-resin particle and opposite-facing surfaces, solidified-resin particle receives, in use, plasticization-inducing effect from opposite-facing surfaces. The plasticization-inducing effect is configured to platicize solidified-resin particle into flowable melt and injected into a mold assembly (850). 1100202100. A plasticizing system () for plasticizing a solidified-resin particle () , the plasticizing system () , comprising:{'b': '102', 'claim-text': [{'b': 103', '202, '(i) a melt channel () being configured to receive the solidified-resin particle (), and'}, {'b': 104', '105', '202', '104', '105', '103, '(ii) opposite-facing surfaces () being spaced apart from each other, and defining, at least in part, a convergence channel () being configured to receive the solidified-resin particle (), the opposite-facing surfaces () and the convergence channel () forming part of the melt channel (); and'}], 'a housing assembly () providing{'b': 111', '104', '111', '202', '104', '105', '202', '104', '202', '104', '202', '850, 'a plunger assembly () being movable, at least in part, relative to the opposite-facing surfaces (), the plunger assembly () being configured to move, at least in part, the solidified-resin particle () relative to the opposite-facing ...

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Номер записи: 10
07-01-2021 дата публикации

Monitored mixture and dosing head

Номер: US20210001525A1
Автор: Marco Volpato, Maurizio Corti
Принадлежит: Afros Spa

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.

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Номер записи: 11
07-01-2021 дата публикации

INJECTION MOLDING MACHINE

Номер: US20210001527A1
Автор: ASAOKA Hiroyasu, HORIUCHI Atsushi, NAKAO Haruhiko, SHIMIZU Kenjirou
Принадлежит:

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 ...

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Номер записи: 12
07-01-2021 дата публикации

Nozzle shut off for injection molding system

Номер: US20210001532A1
Автор: Richard Ernest Fitzpatrick
Принадлежит: Extrude To Fill Inc

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.

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Номер записи: 13
07-01-2016 дата публикации

METHOD FOR MANUFACTURING FOAMABLE INJECTION MOLDING AND INJECTION DEVICE THEREFOR

Номер: US20160001474A1
Автор: ICHIKAWA Kentarou, LEVI Kishbaugh, NAKATANI Toyohiko, SATO Kazuhito, Tanaka Hideo
Принадлежит:

A plasticizing process in which a molten resin that has been plasticized and dissolved in a foaming gas is sent to the front end side of a heating cylinder () by means of a screw () that rotates in a heating cylinder (), and the screw () retreats according as the molten resin accumulates in the front end side of the heating cylinder (); a transfer process in which the screw () is advanced with rotating and transfers the molten resin accumulated in the front end side of the heating cylinder () from a plasticizing unit () to an injection unit (), and an injection process in which the molten resin is injected from the injection unit () are conducted and repeated to produce a foamable injection molded product. 1. A method for producing foamable injection molded product using an injection apparatus comprising a plasticizing unit that plasticizes a raw material resin and an injection unit that injects a plasticized molten resin , and the plasticizing unit is provided with a heating cylinder having a foaming gas injection valve and a screw arranged inside the heating cylinder ,the method comprises:a plasticizing process wherein the raw material resin is plasticized by means of the screw provided inside the heating cylinder of the plasticizing unit, the plasticized molten resin is dissolved in the foaming gas injected from the foaming gas injection valve, and the screw retreats according as the molten resin accumulates in the front end side of the heating cylinder by the screw that is rotating, anda transfer process wherein the screw that has retreated to a predetermined position is caused to advance while rotating, and the molten resin which has been accumulated in the front end side of the heating cylinder is transferred to the injection unit;wherein, when the transfer process is completed, the plasticizing process re-starts without stopping the rotation of the screw and an injection process in which the molten resin is injected from the injection unit is conducted, ...

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Номер записи: 14
07-01-2016 дата публикации

INJECTION MOLDING METHOD AND INJECTION MOLDING DEVICE

Номер: US20160001477A1
Автор: Kariya Toshihiko, Nobuta Munehiro, OKABE Ryoji, Toda Naoki
Принадлежит:

In an injection molding method, using a heating cylinder having on the front end thereof a discharge nozzle, a single axis screw is rotatable inside the heating cylinder, a fiber-supplying device fills reinforcing fiber into the heating cylinder, and injection molding is performed while supplying the reinforcing fiber and the resin starting material separately and supplying the reinforcing fiber on the front side of the resin starting material. The method includes a plasticization process for obtaining a specified amount of a kneaded product by retracting the screw while rotating in the normal direction to melt the resin starting material and knead reinforcing fiber into the melted resin starting material, and an injection process for discharging the kneaded product from the discharge nozzle by advancing the screw. Reinforcing fiber is supplied into the heating cylinder in the injection process. 1. An injection molding method which includes a cylinder having a discharge nozzle formed on a front side thereof , a single axis screw provided to be rotatable in the cylinder , and a fiber-supplying device for filling the cylinder with reinforcing fiber , and performs injection molding while separately supplying the reinforcing fiber and a resin starting material and supplying the reinforcing fiber on a side closer to the front side than the resin starting material , the method comprising:a plasticization process of allowing the screw to retract while rotating the screw in a normal direction to melt the resin starting material and kneading the reinforcing fiber with the melted resin starting material, thereby obtaining a predetermined amount of a kneaded product; andan injection process of discharging the kneaded product from the discharge nozzle by allowing the screw to advance,wherein the reinforcing fiber is supplied into the cylinder in the injection process.2. The injection molding method according to claim 1 ,wherein the screw is rotated in the normal direction or is ...

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Номер записи: 15
05-01-2017 дата публикации

INJECTION MOLDING METHOD AND INJECTION MOLDING MACHINE

Номер: US20170001354A1
Автор: Kariya Toshihiko, Kinoshita Kiyoshi, Nobuta Munehiro, Toda Naoki, YAMAGUCHI Takeshi
Принадлежит:

There is provided a screw of an injection molding machine that can eliminate uneven distribution of additive components without giving an excessive shear force to the additive components. An injection molding method of the present invention includes: a plasticizing process of feeding a resin pellet P and additive components to a heating cylinder including a screw that can rotate around a rotation axis C and can advance and retreat along the rotation axis C, and generating molten resin M by rotating the screw in a normal direction; and an injection process of injecting to a cavity the molten resin M containing the additive components. In the plasticizing process, retreat operation of forcibly retreating the screw is performed at a predetermined velocity by a predetermined stroke D or a predetermined time. 154-. (canceled)55. An injection molding method of resin containing reinforcing fibers , comprising:a plasticizing process of feeding a fiber bundle and a resin raw material to a cylinder including a screw that can rotate around a rotation axis and can advance and retreat along the rotation axis, and generating molten resin by rotating the screw in a normal direction, the fiber bundle comprising the reinforcing fibers in a roving state or in a chopped strand state; andan injection process of injecting to a cavity the molten resin containing the reinforcing fibers, whereinin the plasticizing process;a shear force in a direction different from a direction of a shear force generated by rotation of the screw is applied to the fiber bundle contained in the molten resin inside a groove of the screw by a retreat operation of forcibly retreating the screw for a predetermined stroke or for a predetermined time that can form a space closer to a downstream side than a tip of the screw, so that a swirling flow is generated in the molten resin containing the reinforcing fibers in a rotation axis direction of the screw; andthe retreat operation is performed, and a rotation ...

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Номер записи: 16
04-01-2018 дата публикации

MOLDING DIE, MOLDING DIE SYSTEM, AND COMPRESSION MOLDING METHOD

Номер: US20180001528A1
Автор: ARAI Tsuyoshi, HORI Yuka, Kawamura Atsushi, Suzuki Mitsuhiro, YOSHIMURA Youhei
Принадлежит:

In a molding die, movable die elements are respectively received in die element receiving holes formed in a frame plate. An end surface of the frame plate, which faces a cavity at a location that is other than locations of the die element receiving holes, forms a frame portion compression surface. An end surface of each movable die element, which faces the cavity, forms a split compression surface. Die element drive devices respectively drive the split compression surfaces of the movable die elements. A whole compression plate commonly supports an opposite end part of the frame plate and opposite end parts of the movable die elements, which are opposite from the cavity. When the whole compression plate is moved forward, the whole compression plate integrally drives the frame plate and the movable die elements forward. A whole drive device drives the whole compression plate. 1. A molding die comprising:a cavity that is formed over a die parting surface and is to be filled with molten resin:a gate seal device that is operable to close a gate, through which the molten resin flows into the cavity;a frame plate that has a plurality of die element receiving holes, which open to the cavity, wherein an end surface of the frame plate, which faces the cavity at a location that is other than locations of the plurality of die element receiving holes, forms a frame portion compression surface;a plurality of movable die elements, which are respectively received in the plurality of die element receiving holes, wherein an end surface of each of the plurality of movable die elements, which faces the cavity, forms a split compression surface that is displaceable in a forward direction, which is a direction toward the cavity, and a backward direction, which is a direction away from the cavity:a plurality of die element drive devices that respectively drive the split compression surfaces of the plurality of movable die elements;a whole compression plate that commonly supports an ...

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Номер записи: 17
02-01-2020 дата публикации

INJECTION COMPRESSION MOLDING MOLD AND INJECTION COMPRESSION MOLDING METHOD

Номер: US20200001510A1
Автор: Kaneto Yoshinori, Wakabayashi Yuki
Принадлежит: Mitsubishi Electric Corporation

In the injection compression molding mold, cooling water passages are provided between a fixed-side surface formation portion and a heater, cooling water passages are provided between a movable-side surface formation portion and a heater, and a cavity is formed by the fixed-side surface formation portion, the movable-side surface formation portion, and a looped member. When the fixed-side surface formation portion and the movable-side surface formation portion are heated to predetermined temperature, resin is injected and filled into the cavity. Next, inside of the cavity is pressurized, and then heating is stopped and cooling water is supplied to the cooling water passages to perform cooling. Then, before the resin is completely solidified, the resin in the cavity is compressed while being cooled and solidified. 1. An injection compression molding mold comprising a first die and a second die , the first die and the second die being arranged so as to be opposed to each other in a predetermined direction , at least the second die being movable in the predetermined direction relative to the first die , whereinthe first die has a first insert member and a first support member,the first insert member has a first surface formation portion, a first coolant passage, and a first heater,the first coolant passage is to be supplied with a coolant for cooling the first surface formation portion, and the first heater is for heating the first surface formation portion,the first coolant passage is provided between the first surface formation portion and the first heater,the first support member fixes and supports the first insert member,the second die has a second insert member, a looped member, and a second support member,the second insert member has a second surface formation portion, a second coolant passage, and a second heater,the second coolant passage is to be supplied with a coolant for cooling the second surface formation portion, and the second heater is for heating the ...

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Номер записи: 18
20-01-2022 дата публикации

INJECTION MOLDING MACHINE AND INJECTION MOLDING METHOD

Номер: US20220016818A1
Автор: AKIYAMA Kenzo, ARAKI Hisakazu, Hirota Koichi, KUBO Yoshikazu
Принадлежит: SODICK CO., LTD.

Provided are an injection molding machine and an injection molding method. An injection molding machine includes: a plasticizing unit which rotates a screw to plasticize a molding material inside a plastication cylinder, and an injection unit. The injection unit has: a plunger reciprocally moving inside an injection chamber, and an injection driving device reciprocally moving the plunger. By driving the injection driving device to move the plunger backward and forward inside the injection chamber, and driving a rotary driving device to alternately rotate the screw in a normal rotation direction and a reverse rotation direction, the molding material is controlled to reciprocate between the plastication cylinder and the injection chamber. 1. An injection molding machine , comprising:a plasticizing unit which plasticizes a molding material inside a plastication cylinder by rotation of a screw;an injection unit which injects, into a mold, the molding material supplied into an injection chamber of an injection cylinder from the plasticizing unit; andan injection control section which controls operations of the plasticizing unit and the injection unit, whereinthe plasticizing unit comprises a rotary driving device rotating the screw,the injection unit comprises a plunger reciprocally moving inside the injection chamber, and an injection driving device reciprocally moving the plunger, andby driving the injection driving device to move the plunger backward and forward inside the injection chamber, and driving the rotary driving device to alternately rotate the screw in a normal rotation direction and a reverse rotation direction, the injection control section controls the molding material to reciprocate on a flow path from the inside of the plastication cylinder into the injection chamber.2. The injection molding machine according to claim 1 , wherein the injection control sectiondrives the rotary driving device to rotate the screw in the normal rotation direction, extrudes ...

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Номер записи: 19
14-01-2016 дата публикации

INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD

Номер: US20160009010A1
Автор: IKEDA Kosuke, Kariya Toshihiko, Kinoshita Kiyoshi, Nobuta Munehiro, OKABE Ryoji, ONUMA Hitoshi, SUZUMURA Yuji, TAKAHASHI Masanori, Toda Naoki, YAMAGUCHI Takeshi
Принадлежит:

The injection molding apparatus of the present invention includes: a heating cylinder; a screw that is provided rotatably in an inner portion of the heating cylinder; a resin feed hopper that feeds a resin pellet; and a fiber feed device that is provided ahead of the resin feed hopper and feeds reinforcing fibers into the heating cylinder. The screw includes a first stage that is located on a rear side, and in which the resin pellet is melted, and a second stage that is located on a front side, and in which the melted resin pellet and the reinforcing fibers are mixed, and a lead of a second flight provided in the second stage is larger than a lead of a first flight provided in the first stage. 1. An injection molding apparatus for a fiber reinforced resin comprising:a cylinder in which a discharge nozzle is formed on a front side;a screw that is provided rotatably and movably in a rotation axis direction in an inner portion of the cylinder;a resin feed section that feeds a resin raw material into the cylinder; anda fiber feed section that is provided ahead of the resin feed section and feeds reinforcing fibers into the cylinder,wherein the screw includesa first stage that is located on a rear side, and in which the resin raw material is melted, anda second stage that is located on the front side and is connected to the first stage, and in which the melted resin raw material and the reinforcing fibers are mixed, and{'b': 2', '1, 'a lead L of a second flight provided in the second stage is larger than a lead L of a first flight provided in the first stage at least in a fiber receiving region where the reinforcing fibers are fed from the fiber feed section.'}2. The injection molding apparatus according to claim 1 ,{'b': '2', 'wherein the lead L of the second flight in the fiber receiving region is 1.2×D to 2.0×D when an inner diameter of the cylinder is D, and'}{'b': 2', '2', '2, 'a width W of the second flight in the fiber receiving region is 0.01×L to 0.3×L.'}3. The ...

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Номер записи: 20
14-01-2021 дата публикации

INJECTION MOLDING SYSTEM

Номер: US20210008769A1
Автор: TSUCHIYA Nobuatsu
Принадлежит: FANUC Corporation

An injection molding system according to an aspect of the present disclosure is for performing insert molding, and includes: an opening-closing mechanism configured to open and close a pair of molds; an injection device configured to inject a resin into a space that is formed between the pair of molds when the pair of molds has been closed; and a positioning mechanism having a holding member configured to hold an insert part, the positioning mechanism configured to position the insert part between the pair of molds, and to cause the holding member to continue holding the insert part between the pair of molds even after the opening-closing mechanism starts to operate to close the pair of molds. 1. An injection molding system for performing insert molding , the injection molding system comprising:an opening-closing mechanism configured to open and close a pair of molds;an injection device configured to inject a resin into a space that is formed between the pair of molds when the pair of molds has been closed; anda positioning mechanism having a holding member configured to hold an insert part, the positioning mechanism configured to position the insert part between the pair of molds, and to cause the holding member to continue holding the insert part between the pair of molds even after the opening-closing mechanism starts to operate to close the pair of molds.2. The injection molding system according to claim 1 , whereinthe positioning mechanism moves the holding member to maintain the holding member at a constant relative location with respect to the mold that is being moved by the opening-closing mechanism.3. The injection molding system according to claim 1 , whereinbefore the opening-closing mechanism completely closes the pair of molds, the positioning mechanism releases the insert part, and thereafter, retracts the holding member from between the pair of molds.4. The injection molding system according to claim 1 , whereinwhen closed, the pair of molds form an ...

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Номер записи: 21
03-02-2022 дата публикации

Injection apparatus

Номер: US20220032520A1
Автор: Chikara Kawabe, Takahiro Sugahara, Takehiko YANAGIYA, Yutaka Nakagawa
Принадлежит: Japan Steel Works Ltd

An injection piston drives a screw. An injection hydraulic cylinder drives the injection piston and is partitioned into first and second chambers. A first oil discharge port is disposed in the injection hydraulic cylinder to be blocked by a piston part when the piston part of the injection piston advances to a pressure-holding switching position, and discharges hydraulic oil from the second chamber. A second oil discharge port is disposed in the injection hydraulic cylinder to be capable of discharging hydraulic oil from the second chamber regardless of the position of the injection piston. The injection piston has first and second members. The joint of the first and second members is disposed at a position separated from an end of the piston part on a side of the second chamber by a predetermined distance.

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Номер записи: 22
19-01-2017 дата публикации

INJECTION MOLDING METHOD, SCREW, AND INJECTION MOLDING MACHINE

Номер: US20170015036A1
Автор: Kariya Toshihiko, Kinoshita Kiyoshi, Nobuta Munehiro, Toda Naoki, YAMAGUCHI Takeshi
Принадлежит:

In an injection molding method of fiber reinforced resin of the present invention, a resin accumulation region is provided closer to a downstream side than an injection completion position inside a heating cylinder, an injection pressure is given to molten resin that occupies the resin accumulation region in an injection process of a preceding cycle, and a shear force is given to the molten resin that occupies the resin accumulation region in a plasticizing process of a subsequent cycle. An inside of massive reinforcing fibers F is impregnated with the molten resin by giving a high injection pressure to the molten resin that occupies the resin accumulation region. Next, dispersion of the reinforcing fibers is promoted by giving a shear force in the plasticizing process of the subsequent cycle. 17-. (canceled)8. An injection molding method of fiber reinforced resin that repeats:a plasticizing process of feeding a resin raw material and reinforcing fibers to a cylinder inside which a screw is provided, melting the resin raw material by rotating the screw, and generating molten resin containing the reinforcing fibers; andan injection process of discharging from the cylinder a predetermined amount of the molten resin containing the reinforcing fibers by advancing the screw to a predetermined injection completion position to give a predetermined injection pressure, whereina resin accumulation region is provided in a region to which the injection pressure inside the cylinder is applied, the resin accumulation region in which the molten resin not less than an amount corresponding to a resin amount for one shot in a subsequent molding cycle is accumulated, the resin accumulation region being formed in a downstream side of the screw in a space between an outside surface of a shear giving shaft and an inside surface of the cylinder, the shear giving shaft being provided integrally with the screw,in the injection process of a preceding cycle, the injection pressure is given to ...

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Номер записи: 23
17-01-2019 дата публикации

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

Номер: US20190016032A1
Автор: Miyamoto Kazuaki, Okamoto Akio
Принадлежит: UBE MACHINERY CORPORATION, LTD.

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- ...

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Номер записи: 24
21-01-2021 дата публикации

DRIVE MECHANISM FOR INJECTION MOLDING MACHINE

Номер: US20210016480A1
Автор: SUGAHARA Keisuke
Принадлежит:

A drive mechanism for an injection molding machine that causes a movable object to undergo movement includes a driving motor that generates a driving force, a drive pulley connected to the driving motor, a driven pulley connected to the movable object, and a plurality of belts (a wide belt and a narrow belt) of equal length, the belts being arranged in parallel with each other and trained around the drive pulley and the driven pulley. 1. A drive mechanism for an injection molding machine configured to cause a movable object to undergo movement , the drive mechanism comprising:a driving motor configured to generate a driving force;a drive pulley connected to the driving motor;a driven pulley connected to the movable object; anda plurality of belts having equal lengths, the belts being arranged in parallel with each other and trained around the drive pulley and the driven pulley.2. The drive mechanism for the injection molding machine according to claim 1 , wherein at least one of the belts has a width that differs from that of another belt.3. The drive mechanism for the injection molding machine according to claim 2 , wherein a belt that has a narrowest width claim 2 , among the plurality of belts claim 2 , is disposed at a position farthest from the driving motor.4. The drive mechanism for the injection molding machine according to claim 2 , further comprising a sensor configured to detect whether or not a belt that has a narrowest width claim 2 , among the plurality of belts claim 2 , exists between the drive pulley and the driven pulley.5. The drive mechanism for the injection molding machine according to claim 1 , wherein the drive pulley and the driven pulley are toothed pulleys claim 1 , and the plurality of belts are synchronous power transmission belts.6. The drive mechanism for the injection molding machine according to claim 5 , wherein a width of a belt that has a narrowest width claim 5 , among the plurality of belts claim 5 , is greater than or equal to ...

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Номер записи: 25
21-01-2021 дата публикации

PLASTICIZING DEVICE, INJECTION DEVICE, MOLDING APPARATUS, AND MANUFACTURING METHOD OF MOLDED PARTS

Номер: US20210016481A1
Автор: MOMONO MASAMICHI
Принадлежит: SHIBAURA MACHINE CO., LTD.

A plasticizing device includes a barrel including a resin material supply port portion and a fiber supply port portion which is formed on a distal side from the resin material supply port portion; and a screw that comprises a shaft body and a flight, and is received in the barrel. The barrel is disposed with a posture in which its axial line intersects a gravitational direction. A maximum length of an opening in the barrel of the fiber supply port portion along an axial direction of the barrel is 1 time or more and 2 times or less as much as a pitch of the flight disposed in a portion of the screw which faces the opening in the barrel of the fiber supply port portion in a direction perpendicular to the axial line of the barrel. 19-. (canceled)10. A plasticizing device comprising:a barrel of a tubular shape comprising a resin material supply port portion which is formed in a peripheral wall portion and to which a resin material is supplied, and a fiber supply port portion which is formed on a distal side from the resin material supply port portion in the peripheral wall portion and to which a continuous fiber is supplied; anda screw that comprises a shaft body, and a flight of a spiral shape formed integrally on a peripheral surface of the shaft body, and is received in the barrel,wherein the barrel is disposed with a posture in which its axial line intersects a gravitational direction, andin a planar view of the fiber supply port portion when the fiber supply port portion is seen in the gravitational direction, one end of an opening in the barrel of the fiber supply port portion in a width direction perpendicular to the axial direction is located between a position distant as much as a distance R(√3/2), in which R is an inner diameter of the barrel, from the axial line in the width direction and a position distant as much as a distance R from the axial line in the width direction, including these two positions, in a range where a rotating direction of the screw ...

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Номер записи: 26
21-01-2021 дата публикации

PLASTICIZING DEVICE, INJECTION DEVICE, MOLDING APPARATUS, AND MANUFACTURING METHOD OF MOLDED PARTS

Номер: US20210016482A1
Автор: MOMONO MASAMICHI
Принадлежит: SHIBAURA MACHINE CO., LTD.

1. A plasticizing device includes a barrel including a resin material supply port portion and a fiber supply port portion which is formed on a distal side from the resin material supply port portion; and a screw that comprises a shaft body and a flight, and is received in the barrel. The barrel is disposed with a posture in which its axial line intersects a gravitational direction. A maximum length of an opening in the barrel of the fiber supply port portion along an axial direction of the barrel is 1 time or more and 2 times or less as much as a pitch of the flight disposed in a portion of the screw which faces the opening in the barrel of the fiber supply port portion in a direction perpendicular to the axial line of the barrel. 18-. (canceled)9. A manufacturing method of molded parts comprising:supplying a resin material, into a barrel that receives a screw, from a resin material supply port portion formed in a peripheral wall portion of the barrel; andsupplying a continuous fiber into the barrel from a fiber supply port portion formed on a distal side of the barrel from the resin material supply port portion in the peripheral wall portion of the barrel and having an opening that communicates with the inside of the barrel,wherein a maximum length of the opening in the barrel of the fiber supply port portion along an axial direction thereof is 1 time or more and 2 times or less as much as a pitch of a flight disposed in a portion of the screw which faces the opening of the fiber supply port portion in a direction perpendicular to an axial line of the barrel. This is a Continuation Application of PCT Application No. PCT/JP2015/075927, filed Sep. 11, 2015 in Japanese.This application is based upon and claims the benefit of priority from prior Japanese Patent Applications No. 2014-186608, filed Sep. 12, 2014, and No. 2015-180176, filed Sep. 11, 2015, the entire contents of which are incorporated herein by referenceThe present invention relates to a plasticizing ...

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Номер записи: 27
28-01-2016 дата публикации

THIN WALL APPLICATION WITH INJECTION COMPRESSION MOLDING AND IN-MOLD ROLLER

Номер: US20160023390A1
Автор: Cao Shipu, Ho Harold, Kong Xin, Shen Qingya, Sun Pei Helen, WEI Yan
Принадлежит: Sabic Global Technologies B.V.

A method for making a thin wall component comprise: locating a film () in a mold cavity of a mold, wherein the mold cavity has an initial mold thickness, wherein the film comprises a base layer () and a pattern layer (); injecting a molding material () into the mold cavity such that the molding material contacts the pattern layer, wherein the molding material comprises a polymeric material and a filler; compressing the mold to a final mold thickness that is less than the initial mold thickness, to form a molded product, wherein the pattern layer forms a surface of the molded product; and removing the molded product from the mold. A molded product formed by the method. The method produce a thin walled component without warpage, inner stresses, poor surface quality, or washout defects. 1. A method for making a thin wall component comprising:locating a film in a mold cavity of a mold, wherein the mold cavity has an initial mold thickness, wherein the film comprises a base layer and a pattern layer, and wherein the pattern layer has a thickness of less than or equal to 0.05 mm;injecting a molding material into the mold cavity such that the molding material contacts the pattern layer, wherein the molding material comprises a polymeric material and a filler;compressing the mold to a final mold thickness that is less than the initial mold thickness, to form a molded product, wherein the pattern layer forms a surface of the molded product;removing the molded product from the mold; andremoving the base layer from the molded product.2. The method of claim 1 , wherein the film has a thickness of less than or equal to 0.03 mm.3. The method of claim 1 , further comprising applying vacuum pressure to hold the in-mold roller film to a mold surface of the mold.4. The method of claim 1 , wherein the mold is a variable cavity depth mold.5. The method of claim 1 , wherein the molded product has a thickness of less than 2 mm.6. (canceled)7. The method of claim 1 , wherein the polymeric ...

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Номер записи: 28
26-01-2017 дата публикации

Control method for injection moulding

Номер: US20170021542A1
Автор: Peter Lindberg
Принадлежит: Tetra Laval Holdings and Finance SA

A control method for an injection moulding system having an extruder, feeding material continuously to an accumulator, portioning material intermittently to an injection device, wherein the control method is configured to drive the extruder at a high speed or at a low speed respectively, the high speed and the low speed defining an extruder speed interval, the method comprising acquiring a value for an actual positional change for the accumulator (ΔPOS ACT ), comparing the value for the actual positional change (ΔPOS ACT ) with a predicted value for the positional change (ΔPOS PRED ), and adjusting a speed of the extruder based on a result of the comparison.

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Номер записи: 29
25-01-2018 дата публикации

INJECTION MOLDING METHOD, SCREW FOR INJECTION MOLDING MACHINE, AND INJECTION MOLDING MACHINE

Номер: US20180022003A1
Автор: Kariya Toshihiko, Kinoshita Kiyoshi, Nobuta Munehiro, Toda Naoki, YAMAGUCHI Takeshi
Принадлежит:

Provided is an injection molding method in which a constricting section is provided at a boundary between a first stage and a second stage of a screw. When a mixture of a molten resin and reinforcing fibers passes through the constricting section, compression force higher than compression force on an upstream side of the constricting section is applied to the mixture. A supply section on a downstream side of the constricting section has a shaft diameter smaller than an outer diameter of the constricting section. Therefore, the vicinity of the supply section becomes a reduced-pressure region with respect to the mixture having passed through the constricting section, and the mixture is accordingly expanded. As a result, spring-back occurs on the reinforcing fibers and a Barus effect occurs on the molten resin, thereby making it possible to produce a state that is advantageous to open the fiber bundle. 1. An injection molding method , comprising:a plasticization step of supplying a solid resin raw material and reinforcing fibers to a cylinder including a screw, and rotating the screw in a normal direction to generate a mixture of the reinforcing fibers and a molten resin, the screw being rotatable around a rotation axis and being movable forward and rearward along the rotation axis; andan injection step of injecting the mixture into a cavity of a mold, wherein in the plasticization step,compression force that is higher than compression force on an upstream side of a constricting region is applied to the mixture in the constricting region, the constricting region being provided in at least a portion of the screw in the rotation axis direction,a pressure applied to the mixture passed through the constructing region is reduced in a reduced-pressure region on a downstream side of the constricting region, andthe mixture is kneaded through the rotation of the screw after the pressure applied to the mixture is reduced, wherein the screw includes,{'sub': 2', '1', '2', '1', '3 ...

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Номер записи: 30
24-01-2019 дата публикации

PROCESS FOR PRODUCING A MOLDED PART

Номер: US20190022908A1
Автор: KLAMMER Guenther, ZEIDLHOFER Herbert
Принадлежит:

A method of manufacturing a molded part includes inserting melt into a cavity of a first tool part, and the first tool part and a second tool part are moved away from one another during or after the insertion of the melt by moving a mold clamping plate relative to a mold clamping plate such that in the first tool part or in a second tool part an at least partial clearance of a first or second zone of the cavity takes place, and a gap is formed between the first tool part and the second tool part. Melt is further inserted into the cleared area of the cavity, and the gap is bridged by an at least already partially solidified section of the melt. A holding force is transmitted from the second tool part through the partially solidified section of the melt bridging the gap to the first tool part. 1. A method for producing a molded part , in which melt is inserted into a cavity of an openable molding tool ,wherein the molding tool comprises a first tool part and a second tool part of which the first tool part is mounted to a first mold clamping plate, and the second tool part is mounted to a second mold clamping plate, which is arranged movably relative to the first mold clamping plate, andwherein the cavity has a zone arranged in the first tool part and a zone arranged in the second tool part, and is closable and openable by moving the second mold clamping plate relative to the first mold clamping platewherein melt is inserted into the cavity, and the first tool part and the second tool part are moved away from each other during the insertion or after the insertion of the melt by moving the second mold clamping plate relative to the first mold clamping plate so far that in the first tool part or in the second tool part, an at least partial clearance of the first or second zone of the cavity takes place, and a gap is formed between the first tool part and the second tool partwherein further melt is inserted into the cleared zone of the cavity whereinthe gap is bridged by ...

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Номер записи: 31
22-01-2015 дата публикации

Method for manufacturing of urinary catheters

Номер: US20150025508A1
Автор: Erik ROLSTED
Принадлежит: Rolsted Mould System ApS

A method for manufacturing an elongated element ( 200 ) is disclosed. The method comprises arranging a molding cavity ( 101 ), defined by a mold ( 103 ) and a mold insert ( 104 ), said mold insert ( 104 ) comprising a mold core ( 105 ). A liquid material is then injected into a proximal end ( 102 ) of the molding cavity ( 101 ), and the material is solidified, such that the elongated element ( 200 ) is formed. The elongated element ( 200 ) and mold insert ( 104 ) are removed from said mold ( 103 ), and the elongated element ( 200 ) is removed from said mold insert ( 104 ), wherein said removal of said elongated element ( 200 ) from said mold insert ( 104 ) comprises injecting a fluid in the interface between the elongated element ( 200 ) and the mold core ( 105 ). A mold assembly for the manufacture thereof is also provided.

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Номер записи: 32
28-01-2021 дата публикации

METHOD AND APPARATUS FOR MOLDING AN ELONGATED HOLLOW ARTICLE

Номер: US20210023755A1
Автор: Eichler Herbert, March Daniel A., Marchetti Gilberto, Montes De Oca Balderas Horacio, Steiner Gottfried
Принадлежит:

A molding apparatus includes a mold comprising a stationary outer mold with a substantially tubular mold cavity, a moveable end mold with an end mold cavity alignable with the tubular mold cavity, and a stationary elongated mold core with a fluid channel therethrough, the mold core extending through the tubular cavity into the end mold cavity. A method of using the apparatus includes injecting a molding material at a material flow rate into the mold, moving the end mold at a speed in a linear direction from a first position to a second position, supplying a fluid at a fluid flow rate to the fluid channel, and varying at least one of the material flow rate, the end mold speed and the fluid flow rate as the end mold moves from the first position to the second position. 1. A molding apparatus for an elongated hollow article , the apparatus comprisinga mold comprising a stationary outer mold with a substantially tubular cavity formed therein, a moveable end mold with an end mold cavity alignable with the tubular mold cavity, and a stationary elongated mold core with a fluid channel therethrough, the mold core extending through the tubular cavity into an end mold cavity of an end mold part;a molding material metering device coupled to the substantially tubular cavity to control the supply of a molding material to the substantially tubular cavity;an actuator coupled to the end mold to move the end mold from a first position with the end mold cavity aligned with the central mold cavity to a second position at a predetermined distance between the end mold and the outer mold; anda valve coupled to the fluid channel to control the supply of a fluid to the fluid channelwherein the molding apparatus is configured to vary a material flow rate of the molding material via the metering device, to vary a speed of the end mold via the actuator or to vary a fluid flow rate of the fluid via the valve as the end mold moves between the first position and the second position.2. The ...

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Номер записи: 33
01-02-2018 дата публикации

NOZZLE SHUT OFF FOR INJECTION MOLDING SYSTEM

Номер: US20180029262A1
Автор: Fitzpatrick Richard Ernest
Принадлежит: EXTRUDE TO FILL, LLC

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 ...

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Номер записи: 34
30-01-2020 дата публикации

RESIN COMPONENT, AND MOLDING METHOD AND MOLDING DEVICE FOR SAME

Номер: US20200031036A1
Автор: Hirano Noboru, Kami Yuuki, Kawano Kazuhiro, Miyamoto Hajime, Moriizumi Taiki, Saimura Toshihiro, YUSA Atsushi
Принадлежит:

An instrument panel () includes a base material portion () made of a base material M and a different material portion () made of a different material M having a different thermal shrinkage from that of the base material M and in the instrument panel (), the base material portion () and the different material portion () are connected in a state such that at least a part of the two materials do not overlap. 1. A resin component comprising: a first resin portion composed of a first resin material; and a second resin portion composed of a second resin material having a different thermal shrinkage from a thermal shrinkage of the first resin material , the first resin portion and the second resin portion being connected in a state of at least partially not overlapping , the resin component comprising:a discontinuous portion at a portion inward of a boundary location of the second resin portion with the first resin portion.2. The resin component according to claim 1 , whereinthe second resin portion is arranged so as to be at least partially surrounded by the first resin portion.3. The resin component according to claim 1 , whereinthe discontinuous portion is arranged intermittently along the boundary location.4. The resin component according to claim 1 , whereinthe discontinuous portion is opened on a surface opposite to a designed surface of the resin component.5. The resin component according to claim 1 , whereinthe discontinuous portion includes at least a bent portion.6. The resin component according to claim 1 , whereinthe discontinuous portion is a cut having a V shape when seen from above, anda connecting point of two sides of a V shape of another through hole or bottomed hole is positioned within an area defined by three sides connecting three end points of the V shape.7. A method for molding a resin component in which a first resin portion composed of a first resin material and a second resin portion composed of a second resin material having a different thermal ...

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Номер записи: 35
31-01-2019 дата публикации

OXYGEN-TIGHT PLASTIC, AND PACKAGING MATERIAL PRODUCED THEREFROM

Номер: US20190031873A1
Автор: Kühl Norbert, WASSMER Martin
Принадлежит:

The invention relates to a polymer blend comprising 15 to 70 Wt. % of polyvinyl alcohol (PVOH) and/or of a PVOH copolymer as well as 30 to 85 Wt. % of a further polymer, to a method for preparing a polymer blend, to the use of a polymer blend for producing a packaging material and to a packaging material. The packaging material obtained from the polymer blend is characterized in particular by a low gas permeability and can be produced by means of cost-effective methods. 122-. (canceled)23. Polymer blend for producing a packaging material with low gas permeability , characterized in that the polymer blend comprises polyvinyl alcohol (PVOH) and/or a PVOH copolymer as well as a further polymer , wherein the mass-related mixing ratio lies in the range from 15 to 70% w/w polyvinyl alcohol (PVOH) and/or a PVOH copolymer and 30 to 85% w/w of a further polymer , and the further polymer is selected from the group consisting of polyethylene (PE) , polypropylene (PP) , polyamide (PA) , and polystyrene (PS) , or a biodegradable polymer , particularly a plastic compostable according to EN 13432 and/or EN 14995.24. Polymer blend according to claim 23 , wherein the biodegradable polymer is selected from the group consisting of aliphatic and aliphatic-aromatic polyesters claim 23 , polyester amides claim 23 , polylactic acids claim 23 , polyhydroxy fatty acids claim 23 , starch and derivatives claim 23 , proteins claim 23 , lignins claim 23 , and cellulose derivatives.25. Polymer blend according to claim 23 , obtainable by mixing claim 23 , fusing claim 23 , and compacting polyvinyl alcohol (PVOH) and/or a PVOH copolymer and the further polymer claim 23 , resulting in a homogenous mixture in the melt.26. Polymer blend according to claim 25 , wherein the homogenous mixture can be produced by means of an extruder or an injection molding machine screw.27. Polymer blend according to claim 25 , wherein the homogenous mixture can subsequently be subjected to granulation or a primary ...

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Номер записи: 36
04-02-2021 дата публикации

PLASTICIZATION DEVICE, THREE-DIMENSIONAL SHAPING DEVICE, AND INJECTION MOLDING DEVICE

Номер: US20210031422A1
Автор: Yamashita Seiichiro
Принадлежит:

A plasticization device includes: a cylinder having a supply port through which a material is supplied; a spiral screw configured to rotate inside the cylinder; a nozzle configured to discharge the material plasticized inside the cylinder; and a first heating unit provided between the supply port in the cylinder and the nozzle. The cylinder includes a first portion having the supply port and a second portion provided with the first heating unit, and a shortest distance between an inner wall surface of the second portion and an outer surface of the screw is longer than a shortest distance between an inner wall surface of the first portion and the outer surface of the screw. 1. A plasticization device comprising:a cylinder having a supply port through which a material is supplied;a spiral screw configured to rotate inside the cylinder;a nozzle configured to discharge the material plasticized inside the cylinder; anda first heating unit provided between the supply port in the cylinder and the nozzle, whereinthe cylinder includes a first portion having the supply port and a second portion provided with the first heating unit, anda shortest distance between an inner wall surface of the second portion and an outer surface of the screw is longer than a shortest distance between an inner wall surface of the first portion and the outer surface of the screw.2. The plasticization device according to claim 1 , whereina maximum distance between the outer surface of the screw facing the inner wall surface of the second portion and a central axis of the screw is shorter than a maximum distance between the outer surface of the screw facing the inner wall surface of the first portion and the central axis.3. The plasticization device according to claim 1 , whereina second heating unit configured to heat the nozzle is provided.4. The plasticization device according to claim 1 , whereina cooling unit configured to cool the first portion is provided.5. The plasticization device ...

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Номер записи: 37
04-02-2021 дата публикации

Plasticization device, three-dimensional shaping device, and injection molding device

Номер: US20210031423A1
Автор: Seiichiro Yamashita
Принадлежит: Seiko Epson Corp

A plasticization device includes: a cylinder having a supply port through which a material is supplied; a spiral screw configured to rotate inside the cylinder; a nozzle configured to discharge the material plasticized inside the cylinder; a heating unit provided between the supply port in the cylinder and the nozzle; a screw drive unit including a motor configured to rotate the screw; and a case configured to accommodate at least a part of the screw drive unit and having a first refrigerant flow path.

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Номер записи: 38
11-02-2016 дата публикации

INJECTION-MOULDED ARTICLE COMPRISING A FIELD OF HOOKS OBTAINED BY MOULDING

Номер: US20160039137A1
Автор: MAHE Anthony
Принадлежит:

One-piece article obtained by injection moulding, with at least one injection point, said article comprising a main body (), having a body volume defined by the space within a surface forming an outer envelope, and at least one hook (), preferably a field of hooks, obtained from the same moulding of the main body of the moulded article, the hook or each hook haying a stem of longitudinal axis and a catching part projecting laterally from the stem, characterized in that the volume of the hooks is substantially smaller than the volume of the body, i.e. at least 100 times smaller, preferably at least 1000 times smaller, for example between 100 000 and 100 000 000 times smaller, than the volume of the body, and in that the width, or smallest transverse dimension, of the stems, measured transversely to the longitudinal axis, is smaller than the thickness of the main body, measured along the longitudinal axis of the stems. 1. A method for manufacturing by moulding of a moulded article comprising a book or a field of hooks obtained integrally with part of its outer surface , said method comprising the steps oftaking a moulding device comprising an inner closed surface which defines a main moulding chamber, at least one on opening for introducing the thermoplastic moulding material into the moulding chamber, a field of cavities with a form complementary to hooks opening onto a first part of the inner surface, the first part of the inner surface being surrounded by an edge surface which does not comprise a cavity, and thrust means for thrusting at least a portion of the edge surface and an opposite part of the inner surface towards one another, the arrangement being such that the thrusting by the thrust means is limited, such that the edge surface and the opposite part which are thrust towards one another cannot come into complete contact with one another, a gap being thus formed between the edge surface and the opposite part, the gap being at least ten times smaller than ...

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Номер записи: 39
08-02-2018 дата публикации

WASHABLE THERMOPLASTIC ELASTOMER FOAM AND ARTICLES INCORPORATING SAME

Номер: US20180036176A1
Автор: BROWN Thomas
Принадлежит:

A thermoplastic elastomer (TPE) foam having a soft open-cell inner layer and a washable closed-cell outer layer which surrounds and substantially seals the inner layer, and which may be used alone or in combination with other components to produce useful articles. The TPE foam includes a base resin which is a styrenic block copolymer, and a foaming agent. A process of forming and molding the TPE foam includes using a shutoff nozzle to prevent the foaming agent from activating before reaching the mold cavity, using an oversized gate to minimize shear heat, and using oversized vents. An earplug may be constructed by molding the TPE foam over a core or body formed from a material which is denser than the TPE foam. A first earplug design may employ a constrained layer damping effect, while a second earplug design may employ an adjustable sound attenuation effect. 1. A thermoplastic elastomer foam body comprising an open-cell inner layer and a closed-cell outer layer , both the open-cell inner layer and the closed-cell outer layer being formed from a base resin which includes a styrenic block copolymer , and the closed-cell outer layer surrounding and substantially sealing the open-cell inner layer.2. The thermoplastic elastomer foam body of claim 1 , wherein the thermoplastic elastomer foam body has a Shore hardness value of between OO 15 and OO 40.3. The thermoplastic elastomer foam body of claim 1 , wherein the closed-cell outer layer is between 0.015 inches and 0.020 inches thick.4. The thermoplastic elastomer foam body of claim 1 , wherein the thermoplastic elastomer foam body is molded in the form of an earplug adapted to be inserted and retained in an ear of a user.5. An article comprising:a core constructed of a core material and including a central body having a longitudinal axis; anda thermoplastic elastomer foam molded over at least a portion of the core and having an open-cell inner layer and a closed-cell outer layer, both the open-cell inner layer and the ...

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Номер записи: 40
24-02-2022 дата публикации

INJECTION MACHINE FOR RECYCLED PLASTIC INJECTION MOLDING SYSTEM

Номер: US20220055272A1
Автор: Siao Marshall Q.
Принадлежит:

The present disclosure provides an injection machine for a recycled plastic injection molding system. The injection machine comprises a supplying system configured to drive plastics from an entry end to downstream of receiving route, a heating system disposed to downstream of the supplying system and configured to melt plastics and drive plastics to the downstream of receiving route, and a buffer system disposed to downstream of the heating system and configured to be a receiving state and a supplying state. When the buffer system is in the receiving state, the buffer system is configured to receiving plastics from the heating system. When the buffer system is in the supplying state, the buffer system is configured to drive plastics to downstream of the receiving route. 1. An injection machine for a recycled plastic injection molding system used with at least one molding device to produce an end product from plastic , the injection machine comprising:a supplying system disposed on an upstream of a receiving route of the injection machine, the supply system having a first material drive device and configured to drive the plastic from an entry end to a downstream of a receiving route of the supplying system;a heating system disposed on the downstream of the receiving route of the supplying system, the heating system having a second material drive device and a heating device, the first material drive device extends to the heating system, the heating device is configured to heat and transform the plastic to molten state, the second material drive device is configured to drive the plastic to a downstream of a receiving route of the heating system;a buffer system is disposed on the downstream of the receiving route of the heating system, the buffer system having a piston and a cylinder coupled to the second material drive device,wherein the buffer system is configured to have a receiving state and a supplying state,wherein the buffer system is configured to receive the ...

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Номер записи: 41
24-02-2022 дата публикации

Plasticizing device, injection molding apparatus, and three-dimensional shaping apparatus

Номер: US20220055274A1
Автор: Daichi Miyashita, Hidenobu Maruyama, Yasuyuki Tanaka
Принадлежит: Seiko Epson Corp

A plasticizing device includes a driving motor, a rotor rotated around a rotation axis by the driving motor and having a groove forming surface on which a groove is formed, a barrel having an opposed surface opposed to the groove forming surface, a communication hole into which a plasticized material flows being provided in the barrel, a housing section housing the rotor, a first restricting section fixed to the rotor and having a first contact surface facing the barrel side, and a second restricting section fixed to the housing section, opposed to the first contact surface, and having a second contact surface contactable with the first contact surface. Movement of the rotor along the rotation axis is restricted by the first restricting section and the second restricting section. The groove forming surface is separated from the opposed surface at a predetermined interval in a state in which the first contact surface and the second contact surface are in contact.

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Номер записи: 42
18-02-2021 дата публикации

INTERNAL RELIEF VOID ARRANGEMENT FOR CASTING SYSTEM

Номер: US20210046683A1
Автор: Bui Tho X., FLOWER SCOTT, McGinnis Mark, Mihealsick Christy
Принадлежит: HONEYWELL INTERNATIONAL INC.

A method includes providing a collection of particulate material and forming a first article therefrom. Forming the first article includes forming an outer shell with an outer surface that defines an outer periphery of the first article; forming a relief area of the first article that supports the outer shell, including forming a relief void in the relief area; and collecting a collection of the particulate material within the outer shell during formation of the first article. Moreover, the method includes encasing the first article with an outer member. The outer member defines an internal cavity with an internal surface that corresponds to the outer surface of the outer shell. The method further includes heating, which deforms the first article selectively at the relief void. 1. A method of manufacturing a part comprising:providing a collection of particulate material; forming an outer shell with an outer surface that defines an outer periphery of the first article;', 'forming a relief area of the first article that supports the outer shell, including forming a relief void in the relief area; and', 'collecting a collection of the particulate material within the outer shell during formation of the first article, the collection having a lower density than that of the outer shell and the relief area;, 'forming a first article from the particulate material comprisingencasing at least a portion of the outer shell of the first article with an outer member, the outer member defining an internal cavity with an internal surface that corresponds to the outer surface of the at least a portion of the outer shell;heating the outer member and the first article and thermally expanding the first article within the outer member, which deforms the first article selectively at the relief void, the first article melting into a molten mass within the internal cavity of the outer member; andsolidifying the molten mass to form a second article within the internal cavity, the second ...

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Номер записи: 43
19-02-2015 дата публикации

Injection molding apparatus

Номер: US20150050382A1
Автор: Toshiomi Sato
Принадлежит: Satoseiki Co Ltd

A small sized injection molding machine by which a molded product can be produced with a desired level of precision with simple control. An injection molding machine with: a longitudinal injection cylinder to which stick-shaped molding materials are sequentially supplied in line from the upper side, the lower end of which is formed into a nozzle shape, and the lower side of which is constituted by a material having a good heat retaining property; a heater which heats the lower portion of the injection cylinder; and a pressing shaft which presses the stick-shaped molding materials downward. When the stick shaped-molding material located at the uppermost side is pressed by the pressing shaft, the molding material located at the lowermost side which has already been completely melted, is injected into a cavity, and the heat from the heater is transmitted to the die side through a nozzle touch portion.

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Номер записи: 44
03-03-2022 дата публикации

Plasticizing device, injection molding apparatus, and three-dimensional shaping apparatus

Номер: US20220063156A1
Автор: Hidenobu Maruyama, Kazunobu Maruyama, Masato Sugano
Принадлежит: Seiko Epson Corp

A plasticizing device includes a plasticizing section that includes a feeding port for receiving a material and plasticizes the material to generate a melted material, a material feeding section that includes a depositing port communicating with the feeding port and feeds the material from the depositing port to the plasticizing section, and a blowing section that blows gas into a feeding path connecting the depositing port and the feeding port.

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Номер записи: 45
08-05-2014 дата публикации

Method for manufacturing fiber-reinforced plastic

Номер: US20140124976A1
Автор: Masaru Tateyama, Takafumi Hashimoto
Принадлежит: TORAY INDUSTRIES INC

A method of manufacturing a fiber-reinforced plastic includes placing a compressible reinforcing fiber base material made of discontinuous reinforcing fibers in a cavity of a mold, injecting melted thermoplastic resin into the cavity, and impregnating the resin into the reinforcing fiber base material, wherein the mold is adapted to change a cavity volume of the mold, and the reinforcing fiber base material after having been or while being impregnated with the thermoplastic resin is compressed in the cavity by reducing the cavity volume of the mold after injecting the melted thermoplastic resin.

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Номер записи: 46
14-02-2019 дата публикации

ROTOR MANUFACTURING METHOD AND ROTOR MANUFACTURING APPARATUS

Номер: US20190047189A1
Автор: KASHIWABARA Keiichiro, NISHIDA Atsushi, YAZAKI Manabu
Принадлежит: HONDA MOTOR CO., LTD.

A rotor manufacturing method, which is method for manufacturing a rotor that includes a rotor core and a magnet inserted into a slot formed in the rotor core, includes a magnet-insertion step of inserting the magnet into the slot; and a fixing-material-injection step of injecting a fixing material into a space between an inner surface of the slot and the magnet from a plurality of fixing-material-injection portions of the slot. In the fixing-material-injection step, a time for starting injection of the fixing material into the slot is made to differ among the plurality of fixing-material-injection portions. 1. A rotor manufacturing method for manufacturing a rotor that comprises a rotor core and a magnet inserted into a slot formed in the rotor core , the method comprising:a magnet-insertion step of inserting the magnet into the slot; anda fixing-material-injection step of injecting a fixing material into a space between an inner surface of the slot and the magnet via a plurality of fixing-material-injection portions opened to the space in the slot,wherein, in the fixing-material-injection step, at least one of: a time for starting the injection of the fixing material into the slot; a speed at which the fixing material is injected into the slot; and an amount of the fixing material injected into the slot is made to differ from one another among the plurality of fixing-material-injection portions.2. The rotor manufacturing method according to claim 1 ,wherein, in the fixing-material-injection step, the fixing material is injected from one of the fixing-material-injection portions by using a first fixing-material-supply device that supplies the fixing material to the one of the fixing-material-injection portions, and the fixing material is also injected from another one of the fixing-material-injection portion by using a second fixing-material-supply device that supplies the fixing material to the another one of the fixing-material-injection portions.3. The rotor ...

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Номер записи: 47
25-02-2021 дата публикации

GEAR BOX WITH VARIABLY COUPLED OSCILLATION AND ROTATION FOR KNEADING MACHINE

Номер: US20210053252A1
Автор: Kress John E., Marsh Douglas J., Paz Gonzalo Marulanda, Samborn Scott Lee
Принадлежит: B&P Littleford LLC

A gear box for a reciprocating kneader. A primary rotational gear is attached to a gear box primary shaft and rotates in concert therewith. A secondary rotational gear is engaged with the primary rotation gear and rotates therewith. A secondary shaft is attached to the secondary rotational gear and rotates therewith. A primary oscillation gear is attached to the gear box primary shaft and rotates therewith. A secondary oscillation gear is rotationally engaged with the primary oscillation gear and rotates on the secondary shaft. An eccentric is coupled to the secondary oscillation gear and rotates in concert therewith. A yoke is engaged with the eccentric and oscillates on an axis perpendicular to the secondary shaft in response to the lobe. The gearbox secondary shaft moves along its axis in concert with yoke oscillation. A housing is pivotally attached to the yoke and pivotally attached to a casing at a casing. 1. A gear box for a reciprocating kneader comprising:a casing;a gear box primary shaft adapted for coupling to a motor;a primary rotational gear attached to said gear box primary shaft which rotates in concert with said gear box primary shaft;a secondary rotational gear engaged with said primary rotation gear which rotates in concert with said primary rotational gear;a gear box secondary shaft attached to said secondary rotational gear which rotates in concert with said secondary rotational gear;a primary oscillation gear attached to said gear box primary shaft which rotates in concert with said gear box primary shaft;a secondary oscillation gear engaged with said primary oscillation gear which rotates in concert with said primary oscillation gear wherein said secondary oscillation gear rotates on said gear box secondary shaft;an eccentric coupled to said secondary oscillation gear wherein said eccentric rotates in concert with said secondary oscillation gear wherein said eccentric comprises lobes;a yoke engaged with said eccentric wherein said yoke ...

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Номер записи: 48
25-02-2021 дата публикации

MICRO MOULDING MACHINE AND PROCESS

Номер: US20210053260A1
Автор: Baklund Jon, Madsen Alex
Принадлежит: Minnesota Micro Molding, Machining & Manufacturing, Inc.

A micro moulding machine and process for forming small plastic parts for the medical device industry. The machine adds heat in two steps to a precision sized plastic pellet and then displaces the entire pellet volume into the mould cavity. A substantial amount of heat is added to the pellet by forcing it through an orifice very near the gate of the mould. The pneumatic pressure to drive the pellet through the orifice is controlled to regulate the amount of heat introduced into the pellet. 1. A plastic moulding process comprising the sequential steps of:forming a cylindrical precision pellet of volume V and having a diameter of D;placing said cylindrical precision pellet into a stationary nozzle having a cylindrical injection path and having a diameter D;conductively heat the stationary pellet in the stationary nozzle for a fixed period of time T;pushing the pellet through an orifice with a diameter smaller than D, quickly for time t shorter than T, thereby adding heat to said pellet;injecting said pellet into a mould cavity having a volume V.2. A plastic moulding process comprising the sequential steps of:cutting a round rod of plastic material to form a cylindrical precision pellet of volume V and having a diameter of D;placing said cylindrical precision pellet into a stationary nozzle having a cylindrical injection path and having a diameter D; said cylindrical injection path defined by the motion of a reciprocating injection pin located in said stationary nozzle;conductively heat the stationary pellet in the stationary nozzle for a fixed period of time T;pushing the pellet with said reciprocating injection pin, through an orifice with a diameter smaller than D, quickly for time t that is shorter than T, thereby adding heat to said pellet proportional to the time period t;injecting said pellet into a mould cavity with a volume V, through a mould opening defining said orifice, thereby displacing the entire pellet volume into said mould cavity. This application is a ...

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Номер записи: 49
25-02-2021 дата публикации

NONRETURN VALVE FOR THE SCREW OF A PLASTICISING UNIT OF AN INJECTION-MOULDING MACHINE

Номер: US20210053264A1
Автор: Heyer Norbert, Hungerkamp Thomas
Принадлежит:

A nonreturn valve includes two half-shells, arranged in a portion of the screw with a reduced screw diameter. One or more channels for the melt to flow through from the screw into the space in front of the screw is/are provided in each of the half-shells, the channels lie substantially parallel to the longitudinal axis of the nonreturn valve or of the screw. In each of the channels are a ball and, following the ball in the direction of flow of the melt, a pin arranged substantially transversely to the direction of flow of the melt. In the direction of flow of the melt, the channels have a first channel portion, with a channel diameter less than the diameter of the ball, and a second channel portion, with a channel diameter greater than the diameter of the ball, the ball and the pin are arranged in the second channel portion. 12320242421202424252025232025262727252828252728abababb. A nonreturn valve () for a screw () of a plasticising unit of an injection-moulding machine , comprising two half-shells ( , ) , which can be arranged in a portion () of the screw () with reduced screw diameter , wherein in each of the half-shells ( , ) one or more channels () are provided for melt to flow through from the screw () into the space in front of the screw , wherein the channels () lie substantially parallel to the longitudinal axis of the nonreturn valve () or respectively to the longitudinal axis of the screw () , wherein in each of the channels () there are provided a ball () and , following the ball as seen in the direction of flow of the melt , a pin () , wherein the pin () is arranged substantially transversely to the direction of flow of the melt , wherein the channels () , as seen in the direction of flow of the melt have respectively a first channel portion () with a channel diameter smaller than the ball diameter , and a second channel portion () with a channel diameter greater than the ball diameter , and wherein ball () and pin () are arranged in the second channel ...

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Номер записи: 50
23-02-2017 дата публикации

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

Номер: US20170050362A1
Автор: Hideo Shimamoto, Shinya Yamamoto
Принадлежит: Sodick Co Ltd

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.

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Номер записи: 51
22-02-2018 дата публикации

AUTOMATIC PORTABLE PLASTIC INJECTION MACHINE

Номер: US20180050475A1
Автор: Cevik Burak, Kara Hasan Kubilay
Принадлежит: APSX LLC

In a plastic injection machine, a controller in electrical communication with a motorized clamp assembly, a heated cylinder barrel, a motorized pre-plasticizing assembly, an injection assembly, and an air mover and that executes an application that configures the controller to: (i) feed thermoplastic material into a heated cylinder barrel that is closed at one end by an injection valve; (ii) warm the heated cylinder barrel to thermoplastic material to a liquid state; (iii) actuate an injection motor to preload a spring biased plunger received within another end of the heated cylinder barrel, thereby pressurizing liquid thermoplastic material in the heating cylinder barrel to an injection pressure set value; (iv) actuate an injection valve motor to open the injection valve causing the pressurized liquid thermoplastic material to inject into a clamped mold; and (v) release a portion of the clamped mold to release the molded article. 1. A method of injection molding thermoplastic articles with an injection molding machine , the method comprising:feeding thermoplastic material into a heated cylinder barrel that is closed at one end by an injection valve;warming the heated cylinder barrel to transform thermoplastic material to a liquid state;actuating an injection motor to preload a spring biased plunger received within another end of the heated cylinder barrel, thereby pressurizing liquid thermoplastic material in the heating cylinder barrel to an injection pressure set value;actuating an injection valve motor to open the injection valve causing the pressurized liquid thermoplastic material to inject into a clamped mold; andreleasing a portion of the clamped mold to release the molded article.2. The method of claim 1 , further comprising:presenting a plurality of control affordances on a user interface device for settings for the injection molding machine;receiving a user input changing at least one value of the settings;sensing a parameter of at least one of: (i) a ...

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Номер записи: 52
02-03-2017 дата публикации

PLASTIC ARTICLE FORMING APPARATUSES AND METHODS FOR CONTROLLING MELT FLOW

Номер: US20170057148A1
Автор: Altonen Gene Michael, Dodd Michael Thomas, RAKER Joshua Douglas
Принадлежит:

A process of forming molded articles using an injection molding apparatus is provided. The process includes providing a thermoplastic material to the injection molding apparatus. The thermoplastic material is heated such that the thermoplastic material is in a molten state. The molten thermoplastic material is injected into at least one mold cavity of the injection molding apparatus using an injection element. A melt pressure of the thermoplastic material filling the at least one mold cavity is monitored using a sensor. The sensor provides a signal indicative of melt pressure in the cavity to a controller. The controller controls the injection element thereby changing melt pressure of the thermoplastic material filling the at least one mold cavity based on the signal to reach a target cavity pressure. A molded article is formed by reducing a mold temperature of the thermoplastic material within the at least one mold cavity. 1. A process of forming molded articles using an injection molding apparatus , the process comprising:providing a thermoplastic material to the injection molding apparatus;heating the thermoplastic material such that the thermoplastic material is in a molten state;injecting the molten thermoplastic material into at least one mold cavity of the injection molding apparatus using an injection element;monitoring melt pressure of the thermoplastic material filling the at least one mold cavity using a sensor, the sensor providing a signal indicative of melt pressure in the at least one mold cavity to a controller;the controller controlling the injection element thereby changing melt pressure of the thermoplastic material filling the at least one mold cavity based on the signal to reach a target cavity pressure; andforming a molded article by reducing a mold temperature of the thermoplastic material within the at least one mold cavity.2. The process of claim 1 , wherein the thermoplastic material having a starting melt flow index (MFI) and a range of ...

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Номер записи: 53
27-02-2020 дата публикации

THERMOFORMING COMPRESSION-BACK INJECTION MOLDING HEADLINERS AND METHOD OF MAKING SAME

Номер: US20200061894A1
Автор: Armitage, Boardman Amy M., Forgette Paul Alan, Hill Anna Miller, JR. Robert Ralph, Stakoe John Andrew
Принадлежит:

A method of producing a headliner with a unitary body includes the steps of thermoforming a blank into a headliner substrate, simultaneously injection molding a secondary component onto the headliner substrate and laminating a surface covering to the headliner substrate. 1. A method of producing a headliner with a unitary body , comprising:thermoforming a blank into a headliner substrate;simultaneously injection molding a secondary component onto said headliner substrate; andlaminating a surface covering to said headliner substrate.2. The method of claim 1 , including curing said headliner substrate following said thermoforming and said injection molding.3. The method of claim 2 , including trimming said headliner substrate following said thermoforming and said injection molding and before laminating.4. The method of claim 3 , including completing said trimming during said curing.5. The method of claim 4 , including heating said blank prior to said thermoforming.6. The method of claim 5 , including loading said blank into a combined thermoforming and injection molding apparatus following said heating.7. The method of claim 6 , including injection molding said secondary component on a B surface of said headliner substrate.8. The method of claim 7 , including laminating said surface covering to an A surface of said headliner substrate.9. The method of claim 8 , including transferring said headliner substrate from said combined thermoforming and injection molding apparatus into a laminating press for said laminating.10. The method of claim 9 , wherein said trimming includes cutting any necessary holes in said headliner substrate.11. The method of claim 1 , including heating said blank prior to said thermoforming.12. The method of claim 11 , including loading said blank into a combined thermoforming and injection molding apparatus following said heating.13. The method of claim 12 , including transferring said headliner substrate from said combined thermoforming and ...

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Номер записи: 54
09-03-2017 дата публикации

INTEGRATED TOOL FOR CREATING AN EMBOSSED KEYBOARD COMPONENT

Номер: US20170066170A1
Автор: Murphy Robert S., Sandieson Christopher A.
Принадлежит:

Disclosed herein is an integrated embossing and injection molding tool that is used to overmold a frame on an embossed material. The embossed material and the frame may be used as a keyboard component of keyboard for a portable electronic device. 1. An integrated embossing and injection molding tool for forming an input component of an electronic device , comprising:a core having an embossing pattern disposed thereon;a stretching insert operative to stretch a material placed on the core;an embossing mechanism operative to emboss the material after the material has been stretched by the stretching insert; andan injection molding mechanism operative to overmold a structure on the material.2. The integrated embossing and injection molding tool of claim 1 , further comprising a moveable insert to position the material for stretching.3. The integrated embossing and injection molding tool of claim 2 , wherein at least a portion of the embossing mechanism is moveably contained within the moveable insert.4. The integrated embossing and injection molding tool of claim 2 , wherein the stretching insert moves relative to the moveable insert.5. The integrated embossing and injection molding tool of claim 2 , wherein the moveable insert defines one or more apertures operative to form a shape of the structure.6. The integrated embossing and injection molding tool of claim 1 , wherein the stretching insert is adjustable in order to adjust a tension of the material.7. The integrated embossing and injection molding tool of claim 1 , wherein the embossing mechanism has one or more apertures that receive at least a portion of the injection molding tool.8. The integrated embossing and injection molding tool of claim 1 , wherein the core has a surface texture to hold the material in position.9. The integrated embossing and injection molding tool of claim 1 , wherein the embossing mechanism mates with the embossing pattern of the core.10. The integrated embossing and injection molding ...

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Номер записи: 55
19-03-2015 дата публикации

Injection molding apparatus, injection molding method, and molded-product manufacturing method

Номер: US20150076737A1
Автор: Koki Kodaira
Принадлежит: Canon Inc

An injection molding apparatus includes a stationary mold and a movable mold, and heats and cools at least one of the stationary mold and the movable mold when forming a molded product by injecting resin into a cavity formed by the stationary mold and the movable mold. The at least one mold to be heated and cooled is separable into a first mold member and a second mold member. When heating the at least one mold, the first mold member and the second mold member are separated from each other so that a space into which thermal fluid is to be injected is formed between the first mold member and the second mold member.

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Номер записи: 56
17-03-2016 дата публикации

SCREW POSITION ADJUSTMENT DEVICE FOR INJECTION MOLDING MACHINE

Номер: US20160075065A1
Автор: Yokoyama Koichi
Принадлежит:

A screw () for rotating within a material supply cylinder () to plasticize a material is able to reciprocate in the axial direction, between a retracted position away from a communicating passage () through which a plasticization chamber () leads to an injection chamber (), and an advanced position at which the screw closes off the communicating passage. The screw position adjustment device includes: a thread () immovable with respect to the material supply cylinder, and having a through-hole () extending in the axial direction; a position adjustment nut () threadably engaged at the outside peripheral face of a thread for determining the retracted position; a fastener () for securing the position of the position adjustment nut; and a casing () covering the position adjustment nut and the fastener, and having an opening () for moving closer to the position adjustment nut and the fastener. 1. A screw position adjusting device for an injection molding machine that comprises a material supply cylinder having a first chamber , an injection cylinder having a second chamber , a connection part having a communicating passage that communicates the first chamber with the second chamber , a screw rotating in the material supply cylinder and plasticizing or mixing a material in a retracted position that is away from the communicating passage , an injection shaft injecting the material in the injection cylinder , a rotating device rotating the screw , and a reciprocating device reciprocating the screw in an axial direction between an advanced position where the screw contacts the connection part to close the communicating passage and the retracted position , the screw position adjusting device adjusting the retracted position in the injection molding machine and comprising:a thread having a through-hole that extends in the axial direction and being immovable with respect to the material supply cylinder;a position adjustment nut screwed to an outer peripheral surface of the ...

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Номер записи: 57
05-06-2014 дата публикации

Modeling apparatus and operation method thereof

Номер: US20140151932A1
Автор: Chun-Yen Hung, Ya-Chi Hsiao
Принадлежит: Wistron Corp

A modeling apparatus includes a first set and a second set. The first set includes a body and a first mold structure, the first mold structure is disposed on a surface of the body. The second mold includes a movable portion, a first pushing mechanism, a valve and a second pushing mechanism. A second mold structure of the movable portion is combined with the first mold structure to form an accommodating space. The first pushing mechanism is connected to the movable portion for moving the movable portion, so as to combine the second mold structure with the first mold structure. The valve is disposed on the second mold structure for injecting plastic into the accommodating space. The second pushing mechanism is connected to the pushing component. The second pushing mechanism drives the pushing component to pierce through the movable portion, to move the modeled plastic out of the accommodating space.

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Номер записи: 58
18-03-2021 дата публикации

Method of Manufacture of Microfluidic or Microtiter Device

Номер: US20210077997A1
Автор: Doppelmayer Nora, Peterca Andrej, Pitzek Maximilian
Принадлежит: STRATEC Consumables GmbH

A method of manufacturing a microfluidic or microtiter device, the method comprises fabricating, by a single compression injection molding operation, a microfluidic or microtiter device having one or more indentations, in which a base thickness of the one or more indentations is less than 400 μm. In embodiments, the fabricating step comprises: forming a mold cavity; filling the mold cavity with molten material; closing the mold cavity; and driving one or more molding formations complementary to the one or more indentations into the mold cavity. 1. A method of manufacturing a monolithic microfluidic or microtiter device , the method comprising:providing a mold cavity with mold formations, wherein the mold cavity is complimentary to the desired configuration of the molded monolithic microfluidic or microtiter device;heating a polymer material to a molten state;compression injecting the molten polymer material into the mold cavity; andsetting the polymer material to become transparent; and a ridge around the periphery of the underside of the plate and one or more first wells with a base, wherein a base thickness of the one or more wells is less than 400 μm, a variation of the base thickness is less than 10% and a base has a low background fluorescence; and', 'second wells at the periphery surrounding the first wells providing a frame around an array of first wells., 'obtaining the entire molded monolithic microfluidic or microtiter device having'}2. The method according to claim 1 , further comprising the step of cooling the mold cavity claim 1 , the cooling comprising cooling different parts of the mold cavity to different temperatures.3. The method according to claim 1 , in which the microfluidic or microtiter device is a microtiter plate having an array of wells.4. The method according to claim 1 , wherein the one or more molding formations are mold pins claim 1 , one pin for each well.5. The method according to claim 1 , wherein the step of providing the mold ...

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Номер записи: 59
18-03-2021 дата публикации

CONTROL DEVICE AND CONTROL METHOD FOR INJECTION MOLDING MACHINE

Номер: US20210078227A1
Автор: HORIUCHI Atsushi
Принадлежит:

A control device for an injection molding machine that performs a metering of a resin while the resin is being melted inside a cylinder, includes a pressure acquisition unit that acquires a pressure of the resin, a reverse rotation control unit that causes a screw to be rotated in reverse so as to reduce the pressure of the resin, after the screw has been moved rearward to a predetermined metering position, a judgment unit that judges whether or not the pressure of the resin has reached a predetermined rearward movement initiation pressure, after the reverse rotation of the screw is started, and a rearward movement control unit which causes the screw to be moved rearward, in the case it is judged that the pressure of the resin has reached the rearward movement initiation pressure. 1. A control device for an injection molding machine including a cylinder into which a resin is supplied , and a screw configured to move forward and rearward and rotate inside the cylinder , the injection molding machine being configured to perform a metering of the resin while the resin is being melted inside the cylinder , by causing the screw to be moved rearward to a predetermined metering position while being forwardly rotated , the control device comprising:a pressure acquisition unit configured to acquire a pressure of the resin inside the cylinder;a reverse rotation control unit configured to cause the screw to be rotated in reverse based on a predetermined reverse rotation condition so as to reduce the pressure of the resin, after the screw has been moved rearward to the predetermined metering position;a judgment unit configured to judge whether or not the pressure of the resin has reached a predetermined rearward movement initiation pressure, after the reverse rotation of the screw is started; anda rearward movement control unit configured to cause the screw to be moved rearward based on a predetermined rearward movement condition, in a case that the judgment unit judges that ...

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Номер записи: 60
18-03-2021 дата публикации

CONTROL DEVICE AND CONTROL METHOD FOR INJECTION MOLDING MACHINE

Номер: US20210078231A1
Автор: HORIUCHI Atsushi
Принадлежит:

A control device for an injection molding machine is equipped with a pressure acquisition unit that acquires a pressure of a resin, a reverse rotation control unit that causes a screw to be rotated in reverse, after the screw has reached a predetermined metering position, a measurement unit that measures an elapsed time or a rotation amount of the screw from when the screw has reached the predetermined metering position, and a rearward movement control unit that initiates sucking back of the screw in an overlapping manner with the reverse rotation of the screw, in the case that a predetermined rearward movement initiation time has elapsed, or in the case that the screw has been rotated by a predetermined rearward movement initiation rotation amount, from when the screw has reached the predetermined metering position. 1. A control device for an injection molding machine including a cylinder into which a resin is supplied , and a screw configured to move forward and rearward and rotate inside the cylinder , the injection molding machine being configured to perform a metering of the resin while the resin is being melted inside the cylinder , by causing the screw to be moved rearward to a predetermined metering position while being forwardly rotated , the control device comprising:a pressure acquisition unit configured to acquire a pressure of the resin;a reverse rotation control unit configured to cause the screw to be rotated in reverse based on a predetermined reverse rotation condition, so as to reduce the pressure of the resin, after the screw has reached the predetermined metering position;a measurement unit configured to measure an elapsed time or a rotation amount of the screw from when the screw has reached the predetermined metering position; anda rearward movement control unit configured to initiate sucking back of the screw based on a predetermined rearward movement condition so as to occur in an overlapping manner with the reverse rotation of the screw, in ...

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Номер записи: 61
14-03-2019 дата публикации

METHOD FOR MANUFACTURING FOAMABLE INJECTION MOLDING AND INJECTION DEVICE THEREFOR

Номер: US20190077059A1
Автор: ICHIKAWA Kentarou, LEVI Kishbaugh, NAKATANI Toyohiko, SATO Kazuhito, Tanaka Hideo
Принадлежит:

An injection apparatus including a plasticizing unit () that plasticizes a raw material resin and an injection unit () that injects a plasticized molten resin. The plasticizing unit includes a heating cylinder () having a foaming gas injection valve and a screw () provided inside the heating cylinder. The rotation and advance and retreat movements of the screw are controlled such that a raw material resin is plasticized by the screw and a foaming gas injected from a foaming gas injection valve is dissolved in the plasticized molten resin. After the screw retreats to a prescribed position according as the molten resin accumulates in the front end side of the heating cylinder by the screw that is rotating, the screw advances with rotating to cause the molten resin which has been accumulated in the front end side of the heating cylinder to be transferred to the injection unit. 1. An injection apparatus comprising a plasticizing unit that plasticizes a raw material resin and an injection unit that injects a plasticized molten resin , wherein the plasticizing unit is provided with a heating cylinder having a foaming gas injection valve and a screw provided inside the heating cylinder , andthe rotation and the advance and retreat movements of the screw are controlled such thata raw material resin is plasticized by means of the screw inside the heating cylinder of the plasticizing unit and a foaming gas injected from a foaming gas injection valve is dissolved in the plasticized molten resin, andafter the screw retreats to a prescribed position according as the molten resin accumulates in the front end side of the heating cylinder by the screw that is rotating,the screw advances with rotating to cause the molten resin which has been accumulated in the front end side of the heating cylinder to be transferred to the injection unit.2. The injection apparatus according to claim 1 , wherein the foaming gas injection valve provided on the heating cylinder is allowed to be ...

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Номер записи: 62
05-03-2020 дата публикации

SEMICONDUCTOR PACKAGE MOLDING DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

Номер: US20200075363A1
Автор: CHOI Jae Won, HONG Sung Bok, Hwang Young Jin, SEO Hee Ju
Принадлежит:

A semiconductor package molding device is provided. The semiconductor package molding device includes a chamber lower part which comprises a lower mold configured to receive a molding target, a chamber upper part configured to engage with the chamber lower part to isolate the inside of a chamber from the outside of the chamber, the chamber upper part including an upper mold configured to form a cavity with the lower mold, a first vent hole located between the chamber upper part and the chamber lower part, the first vent hole configured to discharge gas from the inside of the cavity after the chamber upper part and the chamber lower part engage with each other, a pot which is formed in the lower mold in the chamber lower part, a plunger configured to push up a molding material in the pot, a second vent hole which is formed in a side surface of the pot in the chamber lower part and a cavity vacuum pump configured to discharge gas through the first vent hole and the second vent hole. 1. A semiconductor package molding device comprising:a chamber lower part which comprises a lower mold configured to receive a molding target;a chamber upper part configured to engage with the chamber lower part to isolate the inside of a chamber from the outside of the chamber, the chamber upper part including an upper mold configured to form a cavity with the lower mold;a first vent hole located between the chamber upper part and the chamber lower part, the first vent hole configured to discharge gas from the inside of the cavity after the chamber upper part and the chamber lower part engage with each other;a pot which is formed in the lower mold in the chamber lower part;a plunger configured to push up a molding material in the pot;a second vent hole which is formed in a side surface of the pot in the chamber lower part; anda cavity vacuum pump configured to discharge gas through the first vent hole and the second vent hole.2. The molding device of claim 1 , further comprising:a groove ...

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Номер записи: 63
22-03-2018 дата публикации

INDEPENDENTLY DRIVEN DEVICE FOR USE WITH PLASTIC MELT FEED SCREW

Номер: US20180079120A1
Автор: Myers Jeffrey A.
Принадлежит:

A plastic melt machine includes a feed screw rotatably mounted in a barrel and driven in rotation about a longitudinal screw axis of the feed screw by a screw drive to plasticize material, and an apparatus for driving a device independently of the feed screw. The device can be any rotatable device associated with the feed screw wherein the device is rotatable about a drive axis and is in fluid communication with the barrel to receive the plasticized material. The drive axis is one of parallel to and offset from the screw axis and extending at an angle relative to the screw axis. A drive shaft couples the device to the device drive for rotating the device independently of the rotation of the feed screw by the screw drive. 1. An apparatus for use in a plastic melt machine , the plastic melt machine including a feed screw rotatably mounted in a barrel and driven in rotation about a longitudinal screw axis of the feed screw by a screw drive to plasticize material , the apparatus comprising:an adapter block being in fluid communication with the barrel to receive material plasticized by rotation of the feed screw;a device positioned in the adapter block and being rotatable about a drive axis offset from the screw axis; anda device drive coupled to the device for rotating the device independently of the rotation of the feed screw by the screw drive.2. The apparatus according to wherein the device is one of a mixing device claim 1 , screw vent section claim 1 , an injection port section claim 1 , a melting section and a temperature gradient section.3. The apparatus according to wherein the drive axis is parallel to and offset from the screw axis.4. The apparatus according to wherein the adapter block has a passage formed therein claim 3 , the passage being in fluid communication with the barrel claim 3 , the device being rotatably received in the passage and attached to a drive shaft coupled to the device drive.5. The apparatus according to wherein the passage is U-shaped ...

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Номер записи: 64
24-03-2016 дата публикации

PLASTIC MOULDING METHOD

Номер: US20160082627A1
Автор: KILIM Rafael, KILIM Simcha
Принадлежит:

A method of plastic moulding to form a moulded or extruded article, the method employing a moulding apparatus comprising a barrel containing a screw extending between a feed zone supplied by a feed hopper for plastics material, a compression zone and a metering zone for delivery of molten plastics material to a mould or extrusion die, the method comprising introducing into the feed zone a first plastics material () and a single body of a second plastics material (), the first plastics material () having a different physical property to the second plastics material and the second plastics material () being introduced into the feed zone in a size and a frequency of delivery relative to the flow of the material through the barrel such that the second plastics material () is substantially melted and blended with the first plastics material to form a third plastics material with a different physical property to the first or second plastics material across the whole cross sectional area of the metering zone, the molten plastics material delivered to the mould or extrusion die in a predetermined sequence with each plastics material having different physical properties. 1. A method of plastic moulding to form a moulded or extruded article , the method employing a moulding apparatus comprising a barrel containing a screw extending between a feed zone supplied by a feed hopper for plastics material , a compression zone and a metering zone for delivery of molten plastics material to a mould or extrusion die , the method comprising introducing into the feed zone a first plastics material and a single body of a second plastics material , the first plastics material having a different physical property to the second plastics material and the second plastics material being introduced into the feed zone in a size and a frequency of delivery relative to the flow of the material through the barrel such that the second plastics material is substantially melted and blended with the ...

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Номер записи: 65
31-03-2022 дата публикации

MOLD INSERT AND METHOD OF MAKING A MOLD INSERT

Номер: US20220095777A1
Автор: Eimann Klaus, GÖRICH Gerald
Принадлежит:

A mold insert has at least one filament cavity and a stack of at least a first and second insert plates, wherein the first plate has a front face that closely abuts a front face of the second insert plate. A portion of the a filament cavity is provided in at least one of the front faces of the first and second insert plates such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert. A venting cavity is provided in the same front face of the insert plate in which the portion of the at least one filament cavity is provided. The venting cavity, which is in air-conducting connection with the blind-hole end of the filament cavity, has a depth between 1 μm and 20 μm. A method of manufacturing the mold insert includes providing first and second insert plates, forming a portion of a filament cavity into at least one of the front faces of the insert plates, forming a venting cavity into the front face with the filament cavity, and bringing the front faces of the plates into close abutment to form a filament cavity. 1. A mold insert defining at least one filament cavity and comprising a stack of at least a first insert plate and a second insert plate , wherein the first insert plate has a front face that closely abuts a front face of the second insert plate;at least a portion of the at least one filament cavity is provided in at least one of the front faces of the first insert plate and the second insert plate such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert;a venting cavity is provided in the front face of the insert plate in which the portion of the at least one filament cavity is provided, which venting cavity is in air-conducting connection with the blind-hole end of the filament cavity; andthe venting cavity has a depth in a direction essentially perpendicular to the front face of the respective first or second ...

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Номер записи: 66
23-03-2017 дата публикации

METHOD FOR PRODUCING A RECEPTACLE, RECEPTACLE OBTAINED ACCORDING TO SAID METHOD AND DEVICE FOR PRODUCING THE RECEPTACLE

Номер: US20170080620A1
Автор: Ramos Victor
Принадлежит:

A method for producing a receptacle, in particular a receptacle for a cosmetic product, includes injecting a material into a moulding cavity in an injection step. The moulding cavity is expanded during the injection step in such a way as to increase the thickness of a wall of the receptacle in a separation step. A receptacle is obtained using such a method and a device is used for implementing said method. 1. Method for manufacturing a container , in particular a container for a cosmetic product , in which a material is injected into a mould cavity in a step referred to as the injection step , wherein the mould cavity is enlarged during the injection so as to increase the thickness of a wall of the container in a step referred to as the moving-away step.2. Manufacturing method according to claim 1 , wherein said container is injection-moulded in a single injection operation claim 1 , in a single layer of material.3. Manufacturing method according to claim 1 , wherein the injection step begins before the moving-away step.4. Manufacturing method according to claim 1 , wherein said material is injected opposite a core by means of an injection station and the core is moved away from the injection station during the moving-away step in order to increase the thickness of the wall of the container between the core and the injection station.5. Manufacturing method according to claim 4 , wherein said material is injected by said injection station by means of a single injection nozzle.6. Manufacturing method according to claim 4 , wherein the moving-away step includes a step of moving the core between a first position that defines a first material thickness of the wall of the container and a second position of the core claim 4 , the moving-away step beginning at the point at which the injection step has formed said first material thickness.7. Manufacturing method according to claim 6 , wherein the first position of the core defines a thickness of the wall of between 2 and 5 ...

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Номер записи: 67
31-03-2022 дата публикации

METHOD OF MANUFACTURING RESIN PIPE

Номер: US20220097267A1
Автор: HATANAKA Susumu, KURIBAYASHI Nobuaki
Принадлежит:

Two molded articles having a cylindrical two-piece split shape is formed by forming two primary cavities in a desired shape with molds assembled together and injecting a molten primary resin into the two primary cavities. An assist material is injected into a secondary cavity into which a molten secondary resin is injected in a state where the two molded articles are located opposed to each other via a space therebetween and internally fitted into one secondary cavity formed by the molds that are assembled together by shifting the positions. A flange portion having any desired shape is disposed on an outer circumferential surface of a resin pipe in a two-layer structure in which an inner surface layer formed of the cured secondary resin is integrated with an outer surface layer formed of the two molded articles. Thus, a portion having any desired shape is easily manufactured on the resin pipe. 1. A method of manufacturing a resin pipe using a die slide injection mold configured such that positions at which molds to be assembled together during primary molding and secondary molding are slid , in which the resin pipe is manufactured by:forming two molded articles in a cylindrical two-piece split shape by injecting a primary resin that is molten into two primary cavities that are formed by the molds assembled together during the primary molding;internally fitting the two molded articles in a cylindrical shape into one secondary cavity formed by the molds assembled together during the secondary molding such that the molded articles are located opposed to each other via a space between the molded articles, injecting a secondary resin that is molten into the secondary cavity, and then injecting an assist material into the secondary cavity; andintegrating an inner surface layer formed of the secondary resin, that has cured, with the two molded articles.2. The method of manufacturing a resin pipe according to claim 1 , whereinthe resin pipe is a bent pipe, anda wall ...

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Номер записи: 68
31-03-2022 дата публикации

Injector

Номер: US20220097271A1
Автор: Kazuki OGIHARA, Nobusuke Takahashi
Принадлежит: Nissei ASB Machine Co Ltd

In a configuration in which a guide member that guides an intermediate member to be slidably movable is provided on an upper surface of side support plates, a bending buffer portion is provided in a first region of the side support plates which is located more outward than a part of the side support plates on which the guide member is provided. The bending buffer portion is configured to be bent and deformed easier than a second region of the side support plates in which the guide member is provided.

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Номер записи: 69
31-03-2022 дата публикации

IMPROVEMENTS IN ULTRASONIC INJECTION MOULDING

Номер: US20220097272A1
Автор: Miles Andrew
Принадлежит:

An apparatus () for improving the flow properties of injection moulding material has a flow chamber () that is formed in an injection moulding assembly. The flow chamber includes an ultrasonic vibration device (), and an outlet () through which injection moulding material can pass from the flow chamber towards a mould tool (). The ultrasonic vibration device is arranged in the flow chamber such that injection moulding material flows along an outer wall () of the ultrasonic vibration device, in use. 1. An apparatus for improving the flow properties of injection moulding material , the apparatus having a flow chamber that is formed in an injection moulding assembly and includes:an ultrasonic vibration device comprising a sonotrode, andan outlet through which injection moulding material can pass from the flow chamber towards a mould tool cavity; and whereinthe sonotrode is at least partially arranged in the flow chamber such that injection moulding material flows along an outer wall of the sonotrode, in use.2. An apparatus according to claim 1 , wherein the ultrasonic vibration device comprises an oscillator claim 1 , and wherein the oscillator is positioned on a first side of a wall of the flow chamber claim 1 , and the sonotrode at least partially positioned on a second side of the wall of the flow chamber such that the oscillator does not contact the injection moulding material.3. An apparatus according to claim 1 , wherein the ultrasonic vibration device is mounted to the apparatus at a mounting position claim 1 , wherein the mounting position is at a null point of the ultrasonic vibration device in use.4100. An apparatus according to claim 3 , wherein the null point of the ultrasonic vibration device is a null point when the sonotrode is exposed to a temperature gradient of at least C along its axial length.57-. (canceled)8. An apparatus according to claim 1 , wherein the flow chamber forms part of a hot runner system.9. An apparatus according to claim 8 , wherein ...

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Номер записи: 70
12-03-2020 дата публикации

Closed Loop Control for Injection Molding Processes

Номер: US20200078998A1
Автор: Gene Michael Altonen, William Francis LAWLESS, III
Принадлежит: IMFLUX INC

Systems and approaches for controlling an injection molding machine having a mold forming a mold cavity and being controlled according to an injection cycle include extruding a molten polymer according to an extrusion profile and measuring at least one variable during the extrusion profile with a first sensor. At least one extrusion operational parameter is adjusted based on the measured variable. The extrusion profile is terminated upon the molten polymer exceeding a first threshold, and the molten polymer is injected into the mold cavity according to an injection profile via a screw that moves from a first position to a second position. Upon completion of the injection profile, a recovery profile commences in which the screw is moved to the first position.

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Номер записи: 71
25-03-2021 дата публикации

CONTROL DEVICE AND CONTROL METHOD FOR INJECTION MOLDING MACHINE

Номер: US20210086421A1
Автор: ASAOKA Hiroyasu, HORIUCHI Atsushi, SHIMIZU Kenjirou
Принадлежит:

A control device for an injection molding machine including a cylinder into which a resin is supplied and a screw that moves forward and rearward and rotates inside the cylinder, includes a metering control unit that performs metering of the resin inside the cylinder by controlling forward rotation and rearward movement of the screw until the screw has been moved rearward to a predetermined metering position, based on predetermined metering conditions, a rearward movement speed acquisition unit acquiring a rearward movement speed of the screw, a speed determination unit that determines a suck back speed for causing a resin pressure to reach a target pressure, based on the rearward movement speed acquired during metering by the rearward movement speed acquisition unit, and a suck back control unit causing the screw to move further rearward based on the suck back speed, after the screw has reached the predetermined metering position. 1. A control device for an injection molding machine including a cylinder into which a resin is supplied , and a screw configured to move forward and rearward and rotate inside the cylinder , the control device comprising:a metering control unit configured to perform metering of the resin inside the cylinder by controlling a forward rotation and a rearward movement of the screw until the screw has been moved rearward to a predetermined metering position, based on a predetermined metering condition;a rearward movement speed acquisition unit configured to acquire a rearward movement speed of the screw;a speed determination unit configured to determine a suck back speed in order for a pressure of the resin to be made to reach a target pressure, based on the rearward movement speed of the screw acquired during metering by the rearward movement speed acquisition unit; anda suck back control unit configured to cause the screw to be further moved rearward based on the suck back speed, after the screw has reached the predetermined metering ...

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Номер записи: 72
29-03-2018 дата публикации

INJECTION MOLDING MACHINE

Номер: US20180085981A1
Автор: Namiki Kensuke
Принадлежит: FANUC Corporation

An injection molding machine includes: a plunger provided inside a barrel and capable of moving forward and backward in an axial direction thereof and rotating about an axis thereof; a feed hole for feeding a molding material in liquid form into a front of the plunger; a packing provided on a backward side of the feed hole to prevent the molding material fed through the feed hole from flowing backward along the plunger; and a controller for controlling a retracting movement of the plunger based on pressure of the molding material fed from the feed hole to thereby perform metering. In this configuration, at least part of the feed hole is covered by a side surface of the plunger at least from start to end of the retracting movement. 1. An injection molding machine that performs molding by injecting a molding material into a mold from a nozzle arranged on a distal end side of a barrel , comprising:a plunger provided inside the barrel and configured to move forward and backward in an axial direction thereof and rotate about an axis thereof;a feed hole configured to allow the molding material in liquid form to be fed into a front of the plunger;a backflow prevention member provided on a backward side of the feed hole and configured to prevent the molding material fed through the feed hole from flowing backward along the plunger; anda controller configured to control retracting movement of the plunger based on pressure of the molding material fed from the feed hole to thereby perform metering,wherein at least part of the feed hole is covered by a side surface of the plunger at least from start to end of the retracting movement.2. The injection molding machine according to claim 1 , wherein:the nozzle is attached directly to the barrel;the nozzle and the barrel each have a bore formed thereinside that enables the plunger to move forward and backward;the feed hole is formed in the nozzle so as to allow the molding material to be fed into the bore formed inside the nozzle; ...

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Номер записи: 73
21-03-2019 дата публикации

INJECTION MOLDING MACHINE AND CONTROL METHOD FOR INJECTION MOLDING MACHINE

Номер: US20190084204A1
Автор: Ono Mitsuhiro
Принадлежит:

An injection molding machine is equipped with a screw having a spline shaft formed with a spline on an outer circumferential surface, a bush having a spline hole formed with a spline on an inner circumferential surface, a linear motion motor for moving the bush in an axial direction of the screw, a rotational motion motor for rotating the bush about an axis of the screw, and a motor control unit which, in the case of fitting the spline shaft in the spline hole, controls the linear motion motor to advance the bush in a direction approaching the screw in a state that the bush and the screw are separated, and which controls the rotational motion motor to rotate the bush when the acquired output torque becomes equal to or larger than a first predetermined torque. 1. An injection molding machine comprising:a screw including a spline shaft formed with a spline on an outer circumferential surface;a bush including a spline hole formed with a spline on an inner circumferential surface;a linear motion motor configured to move the bush in an axial direction of the screw;a rotational motion motor configured to rotate the bush about an axis of the screw;an output torque acquisition unit configured to acquire an output torque of the linear motion motor; anda motor control unit configured to control the linear motion motor and the rotational motion motor,wherein in a case of fitting the spline shaft in the spline hole, the motor control unit is configured to control the linear motion motor to advance the bush in a direction approaching the screw in a state that the bush and the screw are separated, and to control the rotational motion motor to rotate the bush when the acquired output torque becomes equal to or larger than a first predetermined torque.2. The injection molding machine according to claim 1 , wherein when the acquired output torque becomes equal to or larger than the first predetermined torque claim 1 , the motor control unit is configured to control the rotational ...

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Номер записи: 74
30-03-2017 дата публикации

PLASTICIZING UNIT OF AN INJECTION MOLDING MACHINE FOR MICRO-INJECTION MOLDING

Номер: US20170087756A1
Автор: Kaiser Martin, Schiffer Alfred
Принадлежит:

A plasticizing unit of an injection molding machine for micro-injection molding includes a plasticizing cylinder and a screw, which conveys material to be plasticized from a feed opening in the direction of an outlet opening. At least one longitudinal section of the plasticizing cylinder between the feed opening and the outlet opening is formed as a transition region in which the inner diameter of the plasticizing cylinder tapers in the direction of the outlet opening to the outer diameter of the screw. The transition region is formed by a sleeve-shaped transition element which is removably and replaceably mounted within the plasticizing cylinder. The plasticizing cylinder is designed as at least two parts for removing and replacing the sleeve-shaped transition element. 1. A plasticizing unit of an injection molding machine for micro-injection molding having:a plasticizing cylinder, which has a feed opening formed in the outer surface thereof for supply of material to be plasticized and an outlet opening formed on an end face and connectable to a tool of the injection molding machine, anda screw, which conveys the material to be plasticized from the feed opening in a direction toward the outlet opening and is accommodated within the plasticizing cylinder,wherein at least one longitudinal section of the plasticizing cylinder between the feed opening and the outlet opening is formed as a transition region in which an inner diameter of the plasticizing cylinder tapers in the direction toward the outlet opening to an outer diameter of the screw,wherein the transition region is formed by a sleeve-shaped transition element which is removably and replaceably mounted within the plasticizing cylinder, wherein the plasticizing cylinder is designed as at least two parts for removing and replacing the sleeve-shaped transition element.2. The plasticizing unit according to claim 1 , wherein the inner diameter of the plasticizing cylinder is larger in a region of the feed opening ...

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Номер записи: 75
05-05-2022 дата публикации

DIE CASTING MACHINE

Номер: US20220134417A1
Автор: HAYASHI Yuto, NODA Saburo, TSUJI Makoto
Принадлежит: SHIBAURA MACHINE CO., LTD.

A die casting machine of an embodiment includes: a base; a fixed die plate fixed onto the base and holding a fixed die; a movable die plate provided on the base to be movable in a mold opening and closing direction and holding a movable die to face the fixed die; an injection device filling a molten metal into a cavity formed by the fixed die and the movable die and applying a first pressure to the molten metal; a first pressurizing device pressurizing the molten metal filled in the cavity in a region other than a product region of the cavity and applying a second pressure to the molten metal; and a control device controlling the first pressurizing device so that the second pressure becomes higher than the first pressure.

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Номер записи: 76
07-04-2016 дата публикации

Drive mechanism of injection molding machine

Номер: US20160096301A1
Автор: Koichi Nishimura, Satoshi Yano
Принадлежит: FANUC Corp

A drive mechanism of an injection molding machine includes a position adjustment part capable of adjusting a relative position between a rear plate and a motor fixing member. The position adjustment part includes a plurality of screw holes formed in the motor fixing member, a plurality of bolts threadedly engaged with these screw holes, and an abutting part that abuts on these bolts. These bolts are rotated to abut on the abutting part, so that the relative position between the rear plate and the motor fixing member can be adjusted.

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Номер записи: 77
01-04-2021 дата публикации

CONTROL DEVICE AND CONTROL METHOD FOR INJECTION MOLDING MACHINE

Номер: US20210094213A1
Автор: ASAOKA Hiroyasu, HORIUCHI Atsushi, SHIMIZU Kenjirou
Принадлежит:

A control device for an injection molding machine is equipped with a pressure acquisition unit configured to acquire a resin pressure, a pressure reduction control unit configured to, after the screw has reached a predetermined metering position, reduce the resin pressure to a target pressure by performing at least one of reverse rotation and sucking back of the screw, and a standby pressure control unit configured to, after the resin pressure has reached the target pressure, keep the resin pressure within a predetermined range by causing the screw to be rotated in a state in which a position of the screw in an axial direction of the cylinder is maintained. 1. A control device for an injection molding machine , the injection molding machine including a cylinder into which a resin is supplied , and a screw configured to move forward and rearward and rotate inside the cylinder , the injection molding machine being configured to perform metering of the resin while the resin is being melted inside the cylinder , by causing the screw to be moved rearward to a predetermined metering position while being forwardly rotated , the control device comprising:a pressure acquisition unit configured to acquire a pressure of the resin;a pressure reduction control unit configured to, after the screw has reached the predetermined metering position, reduce the pressure of the resin to a predetermined target pressure by performing at least one of reverse rotation and sucking back of the screw; anda standby pressure control unit configured to, after the pressure of the resin has reached the target pressure, keep the pressure of the resin within a predetermined range by causing the screw to be rotated in a state in which a position of the screw in an axial direction of the cylinder is maintained.2. The control device for the injection molding machine according to claim 1 , wherein:the injection molding machine further comprises a nozzle configured to inject the resin that is melted ...

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Номер записи: 78
26-03-2020 дата публикации

Molding system and method

Номер: US20200094452A1
Автор: Bradley C. Tutmark, Danny David Lumpkin, H. Kenneth HANSON, III, Hossein A. Baghdadi, Joseph Thomas Muth, Robert L. Ritchie, Shawn J. Schnee
Принадлежит: Nike Inc

A molding system and a method for operation of the molding system are provided. The method includes flowing a molten polymeric material from an upstream device into an in-mold tuning chamber in a filling position where the in-mold tuning chamber is positioned at least partially within a mold cavity. The method also includes adjusting at least one of a temperature of and a pressure applied to the molten polymeric material in the in-mold tuning chamber to create a first tuned molten polymeric material and releasing the tuned molten polymeric material into the mold cavity from the in-mold tuning chamber.

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Номер записи: 79
26-03-2020 дата публикации

METHOD AND DEVICE FOR PRODUCING COMPONENTS OR PROFILES

Номер: US20200094460A1
Автор: Steiner Gottfried
Принадлежит:

A method for producing components or profiles from at least one solidifiable plastic mass in an injection moulding facility, said method comprising stationary mould components and mould components which are movable with respect thereto. The method includes injection of solidifiable plastic mass into a runner formed in the movable mould components and, from there, via connections either in portions into one or more mould cavities. The runner is enclosed by at least one stationary, temperature-controlled mould component. A continuous runner mass strand is formed with attachment mass strands, which is transported away from the casting site with increasing cooling and solidification and increasing length, together with the filled mould cavities and mould cavity portions. The runner mass strand, together with the connection mass strands, after its solidification and after opening the mould cavity or the mould cavities is separated from the component(s), and the component or the components is/are ejected. 1. A method for producing components or profiles from at least one solidifiable plastic mass in an injection moulding facility , said method comprising stationary mould components and mould components which are movable with respect thereto , wherein the movable mould components contain at least one mould cavity and the stationary mould components have at least one casting site , over which the solidifiable plastic mass is injected into the area between the stationary mould components and the mould cavity/ies in the movable mould components , while moving the movable mould components with the mould cavity/ies away from the casting site , the method comprising: b1) either in portions into an individual mould cavity', 'b2) or one after the other into individual mould cavities,, 'a) injection of solidifiable plastic mass into a runner formed in the movable mould components and, from there, via connections'}c) wherein the runner in the region of the casting site, as well as ...

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Номер записи: 80
04-04-2019 дата публикации

INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD

Номер: US20190099933A1
Автор: IWAMOTO Michihisa, NISHIMURA Kenji, TAKATORI Hiroyuki, Tanaka Takahiro
Принадлежит: MAZDA MOTOR CORPORATION

In injection-molding a conductive material, prolongation of an injection molding cycle and occurrence of defective appearance of a molded article are reduced, and the molded article is given uniform conductivity. An injection molding apparatus has a heating injection means which heats a conductive material to a temperature that allows the conductive material to melt and flow, and which injects the conductive material to a mold. The mold has a plurality of conductive portions at least at a portion of a surface defining a cavity, the conductive portions being insulated from each other. A predetermined voltage is applied to the conductive portions. A static mixer is provided in an area including a tip portion of the heating injection means and a flow path of the conductive material. 1. An injection molding apparatus comprising:a heating injection means which heats a conductive material to a temperature that allows the conductive material to melt and flow, and which injects the conductive material into a mold, whereinthe mold has a plurality of conductive portions at least at a portion of a surface defining a cavity, the conductive portions being insulated from each other,the injection molding apparatus has an energizing means which applies a predetermined voltage to the conductive portions, anda static mixer is provided in an area including a tip portion of the heating injection means and a flow path of the conductive material.2. The injection molding apparatus of claim 1 , whereinthe conductive material is a resin material containing a conductive substance, andthe static mixer is a mixer for dispersing the conductive substance in the conductive material.3. The injection molding apparatus of claim 1 , whereinthe static mixer is provided in an area downstream of the flow path of the conductive material.4. The injection molding apparatus of claim 1 , whereinthe static mixer is provided at a sprue bush.5. An injection molding method for injection-molding an article by ...

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Номер записи: 81
02-06-2022 дата публикации

PLASTICIZING DEVICE, INJECTION MOLDING DEVICE, AND THREE-DIMENSIONAL SHAPING DEVICE

Номер: US20220168936A1
Автор: ANEGAWA Kenta, MARUYAMA Hidenobu, MIYASHITA Daichi, OZAWA Kenta, Tanaka Yasuyuki
Принадлежит:

A plasticizing device that plasticizes at least a part of a material to generate a plasticized material, the plasticizing device includes: a drive motor; a screw configured to rotate around a rotation axis by a drive force of the drive motor and having a groove forming surface in which a groove is formed; a speed reducer disposed between the drive motor and the screw and configured to transmit the drive force of the drive motor to the screw; a barrel having a facing surface facing the groove forming surface and having a through hole into which the plasticized material flows; a first heater configured to heat the material supplied between the screw and the barrel; a first cooling unit configured to cool the drive motor; and a heat insulating unit disposed between the first cooling unit and the speed reducer. At least a part of the heat insulating unit overlaps the first cooling unit when viewed along the rotation axis of the screw. 1. A plasticizing device that plasticizes at least a part of a material to generate a plasticized material , the plasticizing device comprising:a drive motor;a screw configured to rotate around a rotation axis by a drive force of the drive motor and having a groove forming surface in which a groove is formed;a speed reducer disposed between the drive motor and the screw and configured to transmit the drive force of the drive motor to the screw;a barrel having a facing surface facing the groove forming surface and having a through hole into which the plasticized material flows;a first heater configured to heat the material supplied between the screw and the barrel;a first cooling unit configured to cool the drive motor; anda heat insulating unit disposed between the first cooling unit and the speed reducer, whereinat least a part of the heat insulating unit overlaps the first cooling unit when viewed along the rotation axis of the screw.2. The plasticizing device according to claim 1 , whereinthe heat insulating unit is provided along a ...

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Номер записи: 82
02-06-2022 дата публикации

INJECTION DEVICE AND MOLDING MACHINE

Номер: US20220168937A1
Автор: FUJIOKA Toshiharu, HAYASE Kazuma, NODA Saburo, TSUJI Makoto, YOKOYAMA Hiroshi
Принадлежит: SHIBAURA MACHINE CO., LTD.

A run-around circuit makes a hydraulic fluid discharged from a rod-side chamber along with a forward movement of a piston in an injection cylinder flow into a head-side chamber. A servo valve is provided in the run-around circuit and is connected to a tank. In a first state, the servo valve permits flow from the rod-side chamber to the head-side chamber, while prohibits flow from the rod-side chamber to the tank. In a second state, the servo valve prohibits flow from the rod-side chamber to the head-side chamber, while permits flow from the rod-side chamber to the tank. The servo valve can control the flow rate of the hydraulic fluid discharged from the rod-side chamber in each of the first state and second state. 1. An injection device comprising:an injection cylinder which drives a plunger ejecting a molding material into a mold,a run-around circuit which makes a hydraulic fluid discharged from a rod-side chamber in the injection cylinder along with a forward movement of a piston in the injection cylinder flow into a head-side chamber in the injection cylinder,a tank which receives the hydraulic fluid discharged from the rod-side chamber along with the forward movement of the piston, anda servo valve which is provided in the run-around circuit and is connected to the tank, wherein [ a first state where flow from the rod-side chamber to the head-side chamber is permitted while flow from the rod-side chamber to the tank is prohibited and', 'a second state where flow from the rod-side chamber to the head-side chamber is prohibited while flow from the rod-side chamber to the tank is permitted, and, 'can be switched between'}, 'can control a flow rate of the hydraulic fluid discharged from the rod-side chamber in each of the first state and the second state., 'the servo valve'}2. The injection device according to claim 1 , wherein the servo valve can be switched among the first state claim 1 , the second state claim 1 , and a third state where both of flows from the ...

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Номер записи: 83
19-04-2018 дата публикации

CABLE

Номер: US20180105124A1
Автор: Geltinger Simon, Haas Alexander, Mirz Sebastian, Ohni Josef, Preis Roland
Принадлежит:

A cable includes a lead having at least one wire, and a connector having at least one contact and a liquid-tight dielectric housing. The at least one contact is electrically connected to the at least one wire such that an electric current is conductible from the at least one wire into the at least one contact. A temperature-sensitive measuring resistor is contained in the housing and is electrically connected to the at least one wire such that at least a portion of the electrical current that is conductible into the at least one contact flows through the measuring resistor. A metallic element is disposed on the housing and thermally connected to the measuring resistor. 1. A cable comprising:a lead having at least one wire;a connector having at least one contact and a liquid-tight dielectric housing, the at least one contact being electrically connected to the at least one wire such that an electric current is conductible from the at least one wire into the at least one contact;a temperature-sensitive measuring resistor which is contained in the housing and is electrically connected to the at least one wire such that at least a portion of the electrical current that is conductible into the at least one contact flows through the measuring resistor; anda metallic element disposed on the housing and thermally connected to the measuring resistor.2. The cable as recited in claim 1 , wherein the housing includes a projection on which the metallic element is disposed and within which the measuring resistor is disposed.3. The cable as recited in claim 1 , wherein the metallic element extends through the housing.4. The cable as recited in claim 1 , wherein the metallic element is configured to attach the connector to another component.5. The cable as recited in claim 4 , wherein the metallic element is configured as a sleeve or grommet.6. The cable as recited in claim 1 , wherein the metallic element is thermally connected to the measuring resistor via a sheet-metal part.7. ...

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Номер записи: 84
02-04-2020 дата публикации

Injection molding machine and screw control method for injection molding machine

Номер: US20200101652A1
Автор: Junpei Maruyama, Kodai Nanri
Принадлежит: FANUC Corp

An injection molding machine includes: a screw inserted in an injection cylinder and configured to be movable in the axial direction; a motor configured to move the screw; a torque detection unit configured to detect the torque of the motor; a position detection unit configured to detect the position of the screw; a motor drive control unit configured to drive the motor while imposing torque limitation so that the motor's torque will not exceed a limit torque, to thereby advance the screw to the foremost position in the direction of injection; and a determination unit configured to determine that unmelted resin remains inside the injection cylinder if the moving speed of the screw becomes lower than or equal to a predetermined speed while the screw is advancing to the foremost position.

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Номер записи: 85
28-04-2016 дата публикации

INJECTION DEVICE IN MOLDING MACHINE

Номер: US20160114509A1
Автор: Kawasaki Hiroaki
Принадлежит:

An injection device in a molding machine includes: a cylinder having an outlet member formed at a tip-end injection side, a stopper part provided at a rear side, and a pellet supply opening for supplying plastic pellets; a melting device having a plurality of melting holes formed communicating from inflow-side large openings to outflow-side small openings in the longitudinal direction of a device main body, the melting device having a diameter equal to an inner diameter of the cylinder; a heating unit for heating the melting device; and a drive unit for causing the melting device to move in a reciprocating manner. 1. An injection device in a molding machine comprising:a cylinder having an outlet member formed at a tip-end injection side in a longitudinal direction, a stopper part provided at a rear side, and a pellet supply opening provided in an intermediate position between the stopper part and the outlet member for supplying plastic pellets;a melting device having a plurality of melting holes formed communicating from inflow-side large openings to outflow-side small openings in the longitudinal direction of a device main body, the melting device having a diameter equal to an inner diameter of the cylinder;a heating unit for heating the melting device; anda drive unit for causing the melting device to move in a reciprocating manner,wherein the outflow-side small openings of the melting device face the outlet member, the melting device operates as a plunger in the cylinder, and a return travel of the drive unit is configured to correspond to a melting step of melting the plastic pellets and an outward travel of the drive unit is configured to correspond to an injection step of melted resin,in the cylinder, an opening and closing valve is provided between the outlet member and the melting device,the opening and closing valve is configured to open the outflow-side small openings of the melting device in the return travel step of the melting device and to close the ...

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Номер записи: 86
27-04-2017 дата публикации

INSERTABLE APERTURE MOLDING

Номер: US20170113387A1
Автор: Huber Gregory Arther
Принадлежит:

Top and bottom ferrous carrier plates have a plurality of pairs of mating insert receptacles in full carrier plates and interlocked partial carrier plates. Pairs of mating nonferrous pre-molded inserts with mating mold cavities insert with a three axis floating fit into mating insert receptacles. Insert contact faces each comprising a flat surface portion having a plurality of mating alignment elements adapted for automatic precision alignment of the mating pair of pre-molded inserts. An injector structure comprising a plunger and pot bushing structure communicates with a pot on each top pre-molded insert. The bushing structure has a solidifying cavity and stripping structure so that retraction of the plunger separates the solidified material from the plunger face for automatic removal of surplus injected material after each molding cycle. 1. A multiple material carrier plate assembly with mating pairs of insertable , removable , replaceable non-ferrous pre-molded inserts each having at least one mold cavity , inserted into two removable carrier plates for use in precision molding , the assembly comprising:at least one mating pair of insertable, removable, replaceable non-ferrous pre-molded inserts each having at least one mold cavity, each of the pre-molded inserts comprising outer edge configurations adapted for aligning with and engaging a mating insert receptacle in a removable carrier plate for use in precision molding, each of the pre-molded inserts removably inserted in each of the mating insert receptacles in a floating fit configuration allowing each of the pre-molded inserts to float in all three axis within the insert receptacle allowing for self-aligning between the at least one mating pair of pre-molded inserts in the pair of removable carrier plates, the at least one pair of mating pre-molded inserts further comprising a plurality of pairs of mating alignment elements adapted for automatically lining up the at least one pair of mating pre-molded ...

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Номер записи: 87
27-04-2017 дата публикации

Surface demoldability prediction model

Номер: US20170115185A1
Автор: Bernard Villeneuve
Принадлежит: Compagnie Generale des Etablissements Michelin SCA, Michelin Recherche et Technique SA Switzerland

The prediction model includes the steps of calculating a surface area S 1 of a control mold, measuring the force F 1 for demolding from the control mold, determining first and second test specimens with respective surface areas S 0 , S′ 0 , measuring the force F 0 for demolding from the first test specimen, measuring the force F′ 0 for demolding from the second test specimen, calculating the ratio of S 0 and S′ 0 so as to define a test specimen surface area ratio R se , calculating the ratio of the force F 0 for demolding from the first test specimen and F′ 0 for demolding from the second test specimen so as to define a force ratio R fe , measuring the molding surface area S m of a mold to be measured and calculating the force F m for demolding from the mold to be measured such that F m =F 1 ×S m /S 1 ×R fe /R se .

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Номер записи: 88
13-05-2021 дата публикации

INJECTION DEVICE AND GAS DISSOLUTION METHOD OF INJECTION DEVICE

Номер: US20210138707A1
Автор: KUBO Yoshikazu
Принадлежит: SODICK CO., LTD.

After the injection shaft moves backward and the gas is supplied into the injection chamber, it is desired to accurately control the gas supply amount in the injection device in which the injection shaft is moved forward to compress and dissolve the gas in the molding material in the injection chamber. An injection device of the disclosure supplies a gas into an injection chamber via a gas supply hole which passes through an injection shaft and is opened at a tip surface of the injection shaft. The injection device and a gas dissolution method thereof according to the disclosure perform backward and forward movement of the injection shaft for a plurality of cycles. The injection device of the disclosure has at least one seal ring and at least one piston ring aligned in an axial direction on an outer circumferential surface of the injection shaft. 1. An injection device which injects a molding material into a mold , the injection device comprising:an injection cylinder formed with an injection chamber accommodating the molding material;a gas supply device supplying a gas into the injection chamber to compress and dissolve the gas in the molding material supplied into the injection chamber;an injection shaft reciprocating in a cylinder axis direction in the injection chamber and formed with a gas supply hole penetrating inside the injection shaft, wherein one end part of the gas supply hole is opened on a tip surface forming a part of a wall surface of the injection chamber, and another end part of the gas supply hole is connected to the gas supply device to guide the gas from the gas supply device into the injection chamber;an injection driving device causing the injection shaft to reciprocate in the cylinder axis direction; andan injection control device configured to control the injection driving device to move the injection shaft backward and forward in the injection chamber to expand and reduce the injection chamber, wherein after the injection shaft moves ...

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Номер записи: 89
17-07-2014 дата публикации

Injecting machine for two different liquid materials

Номер: US20140198600A1
Автор: Toru Ikeda
Принадлежит: Nissei Plastic Industrial Co Ltd

An injecting machine for two different liquid materials includes an injection cylinder having a nozzle disposed on a distal end thereof, a mixing mechanism disposed on the injection cylinder for mixing the two different liquid materials together to feed a liquid mixture into the injection cylinder, and a support plate supporting a proximal portion of the injection cylinder. The mixing mechanism includes a valve casing fixed to the injection cylinder so that the entirety of the mixing mechanism is supported by the injection cylinder.

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Номер записи: 90
07-05-2015 дата публикации

INJECTION MOLDING MACHINE

Номер: US20150125563A1
Автор: SHIRAISHI Wataru
Принадлежит:

An injection device includes a plunger that has a cylindrical portion formed in an outermost diameter. A nozzle adapter is provided with a molding material charge port. A pressure control device injects a molding material into a barrel through the molding material charge port and moves the plunger backward while applying a set back pressure thereto in a metering. 1. An injection molding machine including an injection device and configured to perform a molding cycle of injecting a molding material supplied to an inner diameter portion provided in a barrel into a mold , so as to mold the molding material , the injection molding machine comprising:a plunger disposed inside the barrel, having an outermost diameter formed in a cylindrical surface, and movable forward or backward and rotatable; a molding material charge portion configured to charge a liquid molding material to the front side of the plunger, and provided in a nozzle when the nozzle is directly attached to the barrel or provided in the nozzle or a nozzle adapter when the nozzle is attached to the barrel through the nozzle adapter; anda control device configured to control the backward movement of the plunger based on the pressure of the liquid molding material charged from the molding material charge portion in a metering of the molding cycle.2. The injection molding machine according to further comprising;a backflow prevention valve configured to prevent the backflow of the liquid molding material, provided in the molding material charge portion.3. The injection molding machine according to claim 1 , further comprising:a pusher plate supported by a linear guide attached to an injection device base of the injection device and configured to transmit a forward or backward moving force to the plunger, and,the control device is able to control a back pressure to a low pressure of 0 to 1 MPa by driving the pusher plate.4. The injection molding machine according to claim 1 , further comprising claim 1 ,a second ...

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Номер записи: 91
03-05-2018 дата публикации

RESIN INJECTION APPARATUS AND METHOD OF MANUFACTURING CORE PRODUCT

Номер: US20180117806A1
Автор: MABU Hirotoshi
Принадлежит: MITSUI HIGH-TEC, INC.

A resin injection apparatus includes: a mold die and a receiving die configured to hold a core body in an axial direction of the core body, the core body having a resin formation region serving as a region where resin is to be formed by injection of molten resin; a plurality of plungers; and a pot group attached to the mold die, the pot group including a plurality of pots proximately located next to each other in a direction. Each of the plurality of pots has a through hole in which a corresponding plunger of the plungers is insertable. The plurality of pots have a first coefficient of thermal expansion that is lower than a second coefficient of thermal expansion of the mold die. 1. A resin injection apparatus comprising:a mold die and a receiving die configured to hold a core body in an axial direction of the core body, the core body having a resin formation region serving as a region where resin is to be formed by injection of molten resin;a plurality of plungers; anda pot group attached to the mold die, the pot group including a plurality of pots proximately located next to each other in a direction,wherein each of the plurality of pots has a through hole in which a corresponding plunger of the plungers is insertable, andwherein the plurality of pots have a first coefficient of thermal expansion that is lower than a second coefficient of thermal expansion of the mold die.2. The resin injection apparatus according to claim 1 , wherein the plurality of pots are arranged adjacent to each other in an annular direction of alignment.3. The resin injection apparatus according to claim 2 , wherein a maximum outer diameter of the pot group corresponding to a surface of the plurality of pots opposed to the core body is larger than a maximum outer diameter of the core body.4. The resin injection apparatus according to claim 1 ,wherein the proximately located pots are directly opposed to each other at a front end portion of the plurality of pots opposite to the core body, ...

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Номер записи: 92
03-05-2018 дата публикации

METHOD FOR MANUFACTURING MOLDED PRODUCT

Номер: US20180117815A1
Автор: Miyazaki Hirotaka
Принадлежит:

A method for continuously manufacturing molded products by repeating a plurality of molding cycles includes, in each molding cycle, filling a resin composition into a mold, pressing the resin composition in the mold, cooling the resin composition in the mold using cooling water, and releasing the resin composition from an interior of the mold to obtain a molded product. An A-th molding cycle of the plurality of molding cycles can be a delay cycle delayed from a B-th molding cycle. When the A-th cycle is the delay cycle, the flow rate of the cooling water flowing in the mold at the cooling step is decreased in the A-th cycle as compared with the B-th cycle. 1. A method for continuously manufacturing molded products by repeating a plurality of molding cycles , each of the plurality of molding cycles comprising:filling a resin composition into a mold;pressing the resin composition in the mold;cooling the resin composition in the mold using cooling water; andreleasing the resin composition from an interior of the mold to obtain a molded product,wherein, assuming that one molding cycle of the plurality of molding cycles is an A-th molding cycle, and another molding cycle different from the A-th molding cycle is a B-th molding cycle, the A-th molding cycle can be a delay cycle delayed from the B-th molding cycle, andwherein, when the A-th cycle is the delay cycle, a flow rate of the cooling water flowing in the mold at the cooling step is decreased in the A-th cycle as compared with the B-th cycle.2. The method for continuously manufacturing a molded product according to claim 1 , wherein claim 1 , when the A-th cycle is the delay cycle claim 1 , a flow of the cooling water is not stopped in the A-th cycle.3. The method for continuously manufacturing a molded product according to claim 1 , wherein claim 1 , when the A-th cycle is the delay cycle claim 1 , a flow of the cooling water is stopped in the A-th cycle.4. The method for continuously manufacturing a molded product ...

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Номер записи: 93
25-04-2019 дата публикации

INJECTION MOLDING MACHINE AND INJECTION MOLDING MACHINE SCREW FOR INJECTING MOLTEN RESIN IN WHICH THERMOPLASTIC RESIN AND REINFORCING FIBERS HAVE BEEN MIXED AND MELTED

Номер: US20190118441A1
Автор: Inoue Akira, SHIMOKUSUZONO So
Принадлежит: TOYO MACHINERY & METAL CO., LTD.

An injection molding machine and screw therefor with which, when mixing reinforcing fibers in a molten resin and injection molding same, the reinforcing fibers can be uniformly dispersed in the molten resin. For a screw provided in an injection molding machine, a mixing section is provided on the downstream side of a compression section. Three helical flights (x, y, z) are provided in the mixing section and three grooves, which are helically disposed in the opposite or the same direction as the orientation of the flights, are formed. As a result of the grooves, it is possible to keep the fiber lengths of the reinforcing fibers long and even if the reinforcing fibers become tangled in the compression section, the fibers are defibrated in the mixing section, the shearing of long fibers in the molten resin is mitigated, the reinforcing fibers are dispersed uniformly and a good product is obtained. 1. An injection molding machine comprising:a screw rotatably provided in a heating cylinder, the injection molding machine being configured to inject a molten resin, in which a thermoplastic resin and reinforcing fibers are mixed and melted, into a cavity of a clamped mold from an injection nozzle attached to a tip of the heating cylinder, wherein a compression section configured to melt, mix and compress a material while conveying the material forward, and', 'a mixing section configured to stir, mix, and disperse a molten material conveyed from the compression section, the molten material consisting of the thermoplastic resin and the reinforcing fibers,, 'the screw includes'}the compression section and the mixing section located downstream of the compression section each are configured of a helical flight,the helical flight of the compression section is formed of one continuous helical screw flight having a gradually-decreasing pitch along a material conveyance direction, andthe helical flight of the mixing section includes a plurality of grooves formed in a surface of the ...

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Номер записи: 94
03-05-2018 дата публикации

Ultrasonic molding of thin wall optical components

Номер: US20180122418A1
Автор: David Porter, Jeffrey Miller, Praveen Pandojirao, Randall B. Pugh, Victor Lust
Принадлежит: Johnson and Johnson Vision Care Inc

An ultrasonic molding device for molding thin-walled optical components which includes an ultrasonic assembly and a plunger assembly for melting thermoplastic material and injecting it into a mold under reduced pressure conditions.

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Номер записи: 95
27-05-2021 дата публикации

LONG FIBER INJECTION MOLDING

Номер: US20210154896A1
Автор: Hassen Ahmed A., Kim Seokpum, Kunc Vlastimil, Lindahl John M.
Принадлежит:

An improved method for obtaining high fiber volume fraction, long fiber injection molded articles is provided. According to one embodiment, the method includes forming an injection molding feedstock by cutting pre-impregnated fiber-reinforced tape into platelets. The platelets can be coated with a thin layer of polymer to allow sliding of the platelets with respect to each other at the early stages of plastication, rather than forcing relative motion of fibers with respect to each other. The method can further include the dispersion of material only in the final stages of the injection molding screw to promote gentle motion of the feedstock at the earlier stages of the plastication process. The method allows improvement of mechanical properties of articles manufactured with equipment and techniques that are prevalent in high volume automotive and consumer industries. 1. A method for manufacturing an object comprising:providing a feedstock including a plurality of platelets containing fiber strands within a thermoplastic or thermosetting matrix;supplying the feedstock into an injection molding machine, the injection molding machine including a plasticizing cylinder having a screw and a nozzle having an opening;rotating the screw and the heating the feedstock within the plasticizing cylinder to convert the feedstock into a fiber-reinforced molten resin; anddischarging the molten resin from the nozzle opening, wherein the fiber strands are present in the molten resin in an amount from 40% to 80% by volume of the molten resin and with an average length of at least 1 mm.2. The method of wherein providing the feedstock includes separating a fiber-reinforced tape into the plurality of platelets.3. The method of including applying a polymer coating to at least one surface of the fiber-reinforced tape prior to separating the fiber-reinforced tape into the plurality of platelets.4. The method of wherein the fiber-reinforced tape includes fiber-reinforced prepreg and wherein ...

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Номер записи: 96
27-05-2021 дата публикации

PLASTICIZING DEVICE, INJECTION MOLDING MACHINE, AND THREE-DIMENSIONAL SHAPING APPARATUS

Номер: US20210154901A1
Автор: ANEGAWA Kenta, ENARI Megumi, Hayashi Riona, Yamashita Seiichiro
Принадлежит:

A plasticizing device that plasticizes a solid material includes a drive motor, a screw rotated by the drive motor along a rotation axis of the drive motor and having a groove forming surface on which a groove is formed, a barrel having a facing surface facing the groove forming surface and provided with a communication hole in a central portion thereof, and a heating unit configured to heat at least one of the screw and the barrel. A first facing region and a second facing region that is closer to the central portion than the first facing region are provided between the groove forming surface and the facing surface. A second gap between the groove forming surface and the facing surface in the second facing region is larger than a first gap between the groove forming surface and the facing surface in the first facing region. 1. A plasticizing device that plasticizes a solid material , the plasticizing device comprising:a drive motor;a screw rotated along a rotation axis of the drive motor and having a groove forming surface on which a groove is formed;a barrel having a facing surface facing the groove forming surface and provided with a communication hole in a central portion thereof; anda heating unit configured to heat at least one of the screw and the barrel, whereina first facing region and a second facing region that is closer to the central portion than the first facing region are provided between the groove forming surface and the facing surface, anda second gap that is a gap between the groove forming surface and the facing surface in the second facing region is larger than a first gap that is a gap between the groove forming surface and the facing surface in the first facing region.2. The plasticizing device according to claim 1 , whereinthe second gap becomes large toward the central portion, and at least one of the groove forming surface and the facing surface corresponding to the first facing region is inclined at a first angle with respect to an ...

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Номер записи: 97
27-05-2021 дата публикации

MIXING EXTRUDER FOR AN INJECTION MOLDING MACHINE

Номер: US20210154902A1
Автор: WEN Hsiu-Feng
Принадлежит:

A mixing extruder for an injection molding machine includes a barrel unit and an extruder screw. The barrel unit includes an extruder tube. The extruder screw includes a screw rod, a helical mixing channel, and a helical gas flow channel communicating with the helical mixing channel. The helical mixing channel and helical gas flow channel both extend around the screw rod. The helical mixing channel extrudes a paste outwardly from a material discharge opening formed at an end of the extruder tube, whereas the helical gas flow channel connects a suction pump through a gas discharge channel formed in the extruder tube oppositely of the material discharge opening. 1. A mixing extruder for an injection molding machine , comprising:a barrel unit including an extruder tube, a material discharge opening that is formed at an end of said extruder tube, a feed inlet that communicates with an inside of said extruder tube, and a gas discharge channel that is disposed at one side of said feed inlet opposite to said material discharge opening, said extruder tube having an extruding portion and a gas suction portion that is connected to said extruding portion, said gas discharge channel being formed in said gas suction portion; and a screw rod that is divided into a mixing section situated inside said extruding portion, a gas flow section connected to said mixing section and situated inside said gas suction portion, and a trigger connecting section connected to said gas flow section oppositely of said mixing section,', 'a helical mixing channel that is disposed helically on said mixing section, and', 'a helical gas flow channel that is disposed helically on said gas flow section and that communicates with said helical mixing channel and said gas discharge channel of said barrel unit;, 'an extruder screw rotatably disposed inside said extruder tube, and including'}wherein said helical mixing channel is configured to extrude a paste material outwardly from said material discharge ...

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Номер записи: 98
12-05-2016 дата публикации

REFRIGERATOR DOOR FRAME APPARATUS AND METHOD

Номер: US20160131412A1
Автор: YANG Sung Jin
Принадлежит:

The present disclosure relates to a refrigerator door frame apparatus and method. In one embodiment, a refrigerator door frame: a first side section forming a first side of the door frame; a second side section forming a second side of the door frame; a third side section forming a third side of the door frame, the third side section integrally coupled to the first side section and the second side section; and a fourth side section forming a fourth side of the door frame; the fourth side section integrally coupled to the first side section and the second side section; wherein the first side section, the second side section, the third side section, and the fourth side section are integrally formed with one another, and one or more ribs are formed on one or more of the first side section, the second side section, the third side section, and the fourth side section. 1. A refrigerator door frame comprising:a first side section forming a first side of the door frame;a second side section forming a second side of the door frame;a third side section forming a third side of the door frame, the third side section integrally coupled to the first side section and the second side section; anda fourth side section forming a fourth side of the door frame; the fourth side section integrally coupled to the first side section and the second side section;wherein the first side section, the second side section, the third side section, and the fourth side section are integrally formed with one another, and one or more ribs are formed on one or more of the first side section, the second side section, the third side section, and the fourth side section.2. The refrigerator door frame of claim 1 , wherein the first side section claim 1 , the second side section claim 1 , the third side section claim 1 , and the fourth side section are integrally formed by an injection molding process.3. The refrigerator door frame of claim 1 , wherein the rib has a hollow space.4. The refrigerator door ...

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Номер записи: 99
31-07-2014 дата публикации

INJECTION-MOULDED ARTICLE COMPRISING A FIELD OF HOOKS OBTAINED BY MOULDING

Номер: US20140212538A1
Автор: MAHE Anthony
Принадлежит: APLIX

One-piece article obtained by injection moulding, with at least one injection point, said article comprising a main body (), having a body volume defined by the space within a surface forming an outer envelope, and at least one hook (), preferably a field of hooks, obtained from the same moulding of the main body of the moulded article, the hook or each hook having a stem of longitudinal axis and a catching part projecting laterally from the stem, characterized in that the volume of the hooks is substantially smaller than the volume of the body, i.e at least 100 times smaller, preferably at least 1000 times smaller, for example between 100 000 and 100 000 000 times smaller, than the volume of the body, and in that the width, or smallest transverse dimension, of the stems, measured transversely to the longitudinal axis, is smaller than the thickness of the main body, measured along the longitudinal axis of the stems. 1. A moulding device for forming a moulded article by injection of a moulding material , the device comprisingan inner closed surface which defines a main moulding chamber,at least one introduction opening for introducing the moulding material into the moulding chamber,a field of cavities with a form complementary to hooks opening onto a first part of the inner surface, the first part of the inner surface being surrounded by an edge surface which does not comprise a cavity, andthrust means for thrusting at least a portion of the edge surface and an opposite part of the inner surface towards one another, the arrangement being such that the thrusting by the thrust means is limited, such that the edge surface and the opposite part which are thrust towards one another cannot come into complete contact with one another.2. The moulding device of claim 1 , wherein there is always a gap between the edge surface and the opposite part.3. The moulding device of claim 2 , wherein the gap is between 0.01 and 0.1 mm claim 2 , this gap being measured in the direction ...

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Номер записи: 100