Экструдер для переработки разнородных вторичных полимерных материалов

Техническое решение относится к области обработки полимерных материалов давлением и может быть использовано при переработке полимерных отходов с получением качественных изделий. Сущность технического решения: экструдер для переработки разнородных вторичных полимерных материалов, включающий корпус, состоящий из зоны питания, зоны сжатия, зоны дозирования, захватное устройство, шнек, выполненный сборным, в зоне питания шнек выполнен в виде конической секции, в зоне сжатия в виде последовательно расположенных барьерной секции и секции декомпрессии, причем в зоне дозирования шнек выполнен из двух последовательно расположенных конической и смешивающей секции со спиралью. Использование экструдера при переработке разнородных вторичных полимерных смесей позволяет сочетать подготовительные операции (наполнение, смешивание, гранулирование, прессование) и операцию получения новых качественных изделий методом экструзии.

Головка для соэкструзии

Изобретение относится к устройствам для производства многослойных изделий плоской и других форм в химической и других отраслях промышленности методом соэкструзии. Головка для соэкструзии содержит разъемный корпус с двумя входными отверстиями круглого сечения и выходным отверстием прямоугольного сечения. Внутри корпуса расположены каналы индивидуального течения материалов, полость совместного движения материалов и дорн. На одной из боковых поверхностей дорна выполнен выступ, высота которого увеличивается от верхней части к нижней, а на противоположной боковой поверхности - впадина, глубина которой увеличивается от верхней части к нижней. Разъемный корпус состоит из набора установленных друг на друга прямоугольных пластин, соединенных болтами и гайками, в центральной пластине выполнено сквозное призматическое отверстие, в котором размещен дорн, а каналы индивидуального течения расположены между дорном и внутренними поверхностями призматического отверстия. Дорн своей верхней частью закреплен ...

ГРУППОВАЯ ЭКСТРУЗИОННАЯ ГОЛОВКА

Изобретение относится к групповой экструзионной головке для изготовления заготовок из термопластичного полимера. Групповая экструзионная головка (1) для изготовления заготовок из термопластичного полимера включает в себя расположенную неподвижно основную раму (2), несколько экструзионных головок (3, 4, 5, 6), которые расположены на основной раме (2). Причем каждая экструзионная головка (3, 4, 5, 6) имеет следующее: вход (7) для массы для перемещенного экструдером потока материала из пластифицированного полимера, кольцевой мундштук (8) для создания трубчатого вида заготовки, причем кольцевой мундштук (8) соединен по текучей среде с входом (7) для массы, наружный элемент (10) мундштука и внутренний элемент (11) мундштука, которые расположены коаксиально относительно друг друга и создают образующий кольцевой мундштук (8) кольцевой зазор (12). Причем по меньшей мере один из элементов (10, 11) мундштука выполнен с возможностью перестановки вдоль установочной оси (V) соответствующей экструзионной ...

ГРАНУЛИРУЮЩИЙ ШНЕКОВЫЙ ПРЕСС

Гранулирующий шнековый пресс для переработки методом проходного прессования высококонцентрированных полидисперсных композиций, в том числе трехфазных, включающий шнек, многоканальный пресс-инструмент и корпус, содержащий втулку, на внутренней поверхности которой изготовлены рифы трапециевидной формы узким основанием наружу с упругими вкладышами, отличающийся тем, что рифы изготовлены со «сноповидной» формой поперечного сечения широким трапециевидным основанием на дне рифа, в рифах размещены съемные упругие вкладыши, изготовленные без полостей или однополостные или многополостные с постоянной или переменной площадью сечения полостей в поперечном и/или в продольном направлении.

ЭКСТРУДЕРЫ ДЛЯ ТЕСТА И СПОСОБЫ ИХ ПРИМЕНЕНИЯ

... 1. Экструдер, содержащий: ! устройство сжатия, предназначенное для экструзии пластичной массы в виде ламинарного потока под давлением менее около 120 фунтов на кв. дюйм, ! камеру сжатия, имеющую впускное отверстие для поступления пластичной массы из устройства сжатия, при этом по меньшей мере часть внутренней поверхности камеры сжатия имеет коэффициент трения от около 0,2 до 0,35 и ! матричную плиту, прикрепленную к выпускному отверстию камеры сжатия, при этом матричная плита совмещена по горизонтали с продольным направлением действия сжимающего усилия и ламинарного потока пластичной массы. ! 2. Экструдер по п.1, в котором матричная плита имеет множество оформляющих каналов на передней поверхности и расположена на определенном расстоянии после устройство сжатия для сведения к минимуму турбулентности и пульсации пластичной массы и в то же время поддержания ламинарного потока и сведения к минимуму падения давления, при этом равномерность плотности пластичной масса на выходе из оформляющих ...

Vorrichtung zum Herstellen von Kunststoffrohren

Beschrieben ist eine Vorrichtung (10) zum Herstellen von Kunststoffrohren (10), mit einem Extruder (9) mit Spritzkopf (9s) und einem Korrugator (1), in den über den Spritzkopf (9s) ein Kunststoffschmelzeschlauch zum Ausformen des Kunststoffrohres (10) eingeleitet wird, wobei vorgesehen ist, dass der Korrugator (1) eine Formstrecke (1f) aufweist, in der Formbacken (5) paarweise in Produktionsrichtung geführt werden, dass in einem Einlaufabschnitt (1e) des Korrugators (1) die Formbacken (5) zu Form backenpaaren zum Anfang der Formstrecke (1f) zusammengeführt werden, und dass in einem Auslaufabschnitt (1a) des Korrugators (1) die Formbackenpaare vom Ende der Formstrecke (1f) auseinander geführt werden. Wesentlich ist, dass jeder Formbacken (5) einen ersten Führungsstift (5s) und einen zweiten Führungsstift (5s) aufweist und die Formbacken (5) in der Führungseinrichtung (6, 8, 8i) geführt sind, indem der erste Führungsstift (5s) mit seinem freien Ende in einer ersten Führungsnut (6n, 8nz) der ...

Getriebeanordnung eines Antriebs für einen Doppelschneckenextruder

Getriebeanordnung (10) eines Antriebs für einen Doppelschneckenextruder, mit einer Leistungsverteilungsstufe (11) und mit einer Leistungssummierungsstufe (12), wobei die Leistungsverteilungsstufe ineinander kämmende Zahnräder (13, 14, 15) aufweist, und wobei die Leistungssummierungsstufe ebenfalls ineinander kämmende Zahnräder (16, 17, 18;) aufweist, u die Zahnräder (13, 14, 15) der Leistungsverteilungsstufe (11) einfachschrägverzahnt und die Zahnräder (16, 17, 18) der Leistungssummierungsstufe (12) doppelschrägverzahnt sind oder die Zahnräder der Leistungsverteilungsstufe doppelschrägverzahnt und die Zahnräder der Leistungssummierungsstufe einfachschrägverzahnt sind.

Vorrichtung zum kontinuierlichen Herstellen massgenauer Profile aus Kunststoff

Plastic moulding method

A method of injection moulding of plastics is to form a moulded article having regions (36, Figs 5a-c) therein of plastics material having different physical properties from adjacent regions. The method employs an injection moulding apparatus comprising a barrel (2, fig 1) containing a screw extending between a feed zone (4) supplied by a feed hopper 10 for plastics material, a compression zone (6) and a me­tering zone (8) for delivery of molten plastics material to a mould. Bodies 22 are supplied in to the hopper (in the form of a ball, pill, ribbon etc) of a material creating a selected physical property in the moulded article; for instance colourants or RFID or other identification elements. The size of the bodies 22 being such as to be delivered to the metering zone (8) substantially unmixed with material having a different physical property and in sufficient quantity to form a said region in the moulded article. Bodies may have inter-linkages as shown in figures 4d-e.

EXTEND-CASH FUSION SUPPLY LINE

CARRYING ARRANGEMENT FOR AN EXTRUDING TOOL AND PROCEDURE FOR THE EXTRUDING OF AN ARTICLE

VERFAHREN ZUM VORWÄRMEN EINER ANFAHRHILFE

Die Erfindung betrifft ein Verfahren zur Vorwärmung von Anfahrhilfen bei der Extrusion mit Hilfe von externen Energiequellen.Durch die Energieeinbringung mit Heizdecken, Heizbändern, Strahlern, Gebläse oder auch Beflammung, ist es möglich die Aufheizzeit zu verkürzen und weniger arbeitsintensiv zu gestalten und somit einen rascheren Produktionsstart zu ermöglichen.

PROCEDURE FOR THE PRODUCTION OF PIPES FROM PP, THE ONE IMPROVED COLD TENACITY AND TENSILE STRENGTH EXHIBITING.

PROCEDURE FOR MANUFACTURING A TRINKHALMES.

GUIDANCE MEANS FOR EXTRUSION WAVES

Multiple extrusion head

Abstract Multiple extrusion head (1) for manufacturing parisons from thermoplastic material, comprising 5 a stationary arranged base frame (2), a multiple of extrusion heads (3, 4, 5, 6), arranged on the base frame (2), wherein each extrusion head (3, 4, 5, 6) has the following: - a material inlet (7) for a material flow of plasticised material delivered by an ex truder, 0 - a ring die (8) for forming a tube-like layer of the parison, wherein the ring die (8) is connected in fluid connection to the material inlet (7), and - an outer die element (10) and an inner die element (11), which are arranged coax ially to each other and which form an annular gap (12) forming the ring die (8), wherein at least one of the die elements (10, 11) is displaceable along an adjust 5 ment axis (V) of the respective extrusion head (3, 4, 5, 6) for adjusting the gap width of the annular gap (12), as well as an adjustment element (13), which is displaceable along a longitudinal axis (L) of the multiple extrusion ...

Filter device

The invention relates to a filter device for polymer melts, having a filter screen (1) through which the polymer melt to be cleaned is conducted, wherein the filter device has at least one scraper element (2) which slides by way of a scraping edge (3) over the inflow-side surface (4) of the filter screen (1) and/or bears by way of its end region close to the scraping edge (3) against the surface (4) and which, during the course of its movement over the surface (4), lifts and/or scrapes off the contaminants (6) adhering to the surface (4) and situated in front of the screen holes (5). It is provided according to the invention that the scraping edge (3), at least in that end region thereof which is in front in the direction of movement (16), has a rounding (7), the radius (R) of which amounts to less than 90%, preferably less than 50%, in particular less than 20%, of the maximum diameter or maximum opening width of the screen holes (5).

MARKING APPARATUS

MARKING APPARATUS A marking apparatus that is useful for marking a line upon a ridge protruding from a surface of a continuously passing elongated article is disclosed. A stylus member of the marking apparatus has a notch in its foot, through which the ridge on the article passes. A tracking arm member is pivotal attached to a bar member, and supports the stylus member, so that the stylus member can follow the track of the ridge even if the article wanders from side to side as it passes the marking apparatus. Marking fluid, stored in a reservoir, passes through a hollow tube and a bore through the stylus member which communicates with the notch in the foot of the stylus member.

PREVENTING CARBONIZATION OF PLASTIC MATERIAL IN A DIE DURING SHUTDOWN

DIE HEAD AND PROCESS TO MANUFACTURE MULTILAYER TUBULAR FILM

In the case of a die head and a process to produce multilayer tubular film made from thermoplastic polymers, the advantages of radial distributors and axial distributors should be combined. This is achieved in that at least one distributor is a plate distributor and at least one distributor is an axial distributor, whereby the plate distributor is located in an annular element of the axial distributor upstream of the melt merge zone to the ring-shaped die.

MULTIPLE EXTRUSION HEAD

Multiple extrusion head (1) for manufacturing parisons from thermoplastic material, comprising a stationary arranged base frame (2), a multiple of extrusion heads (3, 4, 5, 6), arranged on the base frame (2), wherein each extrusion head (3, 4, 5, 6) has the following: - a material inlet (7) for a material flow of plasticised material delivered by an extruder, - a ring die (8) for forming a tube-like layer of the parison, wherein the ring die (8) is connected in fluid connection to the material inlet (7), and - an outer die element (10) and an inner die element (11), which are arranged coaxially to each other and which form an annular gap (12) forming the ring die (8), wherein at least one of the die elements (10, 11) is displaceable along an adjustment axis (V) of the respective extrusion head (3, 4, 5, 6) for adjusting the gap width of the annular gap (12), as well as an adjustment element (13), which is displaceable along a longitudinal axis (L) of the multiple extrusion head (1) and ...

STEEL CORD FOR EXTRUSION PROCESS, AN APPARATUS AND METHOD AND USE OF SAID STEEL CORD

A steel cord (2) for an extrusion process, where a steel wire (6) is connected to the leading end of the steel cord (2). The steel wire (6) is easy to insert through an extruder head (12) and leads the steel cord (2) through the extruder head (12), to facilitate the change-over of steel cord (12) on an extruder (10) to reduce the change-over time. Also an apparatus (10), a change-over process, and the use of the steel cord (2) for an extrusion process is disclosed.

Procédé de préparation d'une couche intermédiaire de matière thermoplastique pour ensembles de verre feuilletés courbes, appareil pour la mise en oeuvre de ce procédé et couche intermédiaire thermoplastique obtenue par ce procédé

Procédé pour la fabrication d'articles de forme allongée en matière thermoplastique et appareil pour sa mise en oeuvre

Verfahren zum Aufbringen von Zeichen auf Gummischläuche.

VERFAHREN ZUR HERSTELLUNG VON BESCHICHTETEN KUNSTSTOFFFOLIEN UND VERWENDUNG DERSELBEN.

Verfahren und Vorrichtung zum kontinuierlichen Herstellen massgenauer Profile aus Kunststoffen

Dimensionally accurate sections produced by

Articles produced by extrusion or injection moulding arefinished by cutting tools as claimed in 1,729,157, and are fed at the same rate during the cutting process such that the forces which occurred during the extrusion or injection moulding are unaffected by the cutting forces. - Spec. the synthetic materials are polyamide or acetal resins, or polycarbonates.

Apparatuses and methods for shaping an extrudable material

Glue smelting and wire extruding device for production of insulating material

bomba de massa fundida para criação de pressão para compressão de massa fundida de plástico por uma ferramenta

MULTIPLE EXTRUSION HEAD

Головка экструзионная

Изобретение относится к устройствам для производства многослойных изделий плоской и других форм методом соэкструзии. Изобретение касается головки экструзионной, содержащей корпус, выполненный разъемным, состоящий из секций, в центре между двумя секциями предусмотрено углубление для циркуляции жидкости, при этом секции образуют между собой два формующих канала, сообщающихся с питающими каналами, формующие каналы выполнены сложнопрофильного сечения, углубление для циркуляции жидкости выполнено треугольного сечения, размещено в делителе, имеющем форму треугольной призмы, внешние грани которой плоские, а вершина расположена в зоне выходного окна, переходящего в полость прямоугольного сечения большего размера, расстояния между продольными ребрами и продольными ручьями одинаковые, поперечные сечения параллельных продольных ручьев выполненных на поверхности внешней верхней плоской грани делителя и параллельных продольных ребер, выполненных на поверхности внешней нижней плоской грани делителя, ...

ГОФРОАГРЕГАТ, ЭКСТРУЗИОННАЯ СИСТЕМА И СПОСОБ РАБОТЫ ГОФРОАГРЕГАТА

Изобретение относится к гофроагрегату для экструзионной системы, к экструзионной системе, содержащей гофроагрегат этого типа, и к способу работы гофроагрегата этого типа. Гофроагрегат для экструзионной системы для формирования трубчатого пластмассового изделия содержит множество блоков пресс-формы; направляющую дорожку, вдоль которой при работе гофроагрегата блоки пресс-формы в каждом случае попарно направляются от начальной области направляющей дорожки к выходной области направляющей дорожки; две первые возвратные дорожки, которые расположены с обеих сторон направляющей дорожки и вдоль которых при работе гофроагрегата блоки пресс-формы направляются от выходной области к начальной области; и две вторые возвратные дорожки, которые также расположены с обеих сторон направляющей дорожки и с помощью которых при работе гофроагрегата отдельные блоки пресс-формы могут быть извлечены с первых возвратных дорожек и/или вставлены на них, при этом две вторые возвратные дорожки расположены между направляющей ...

Führungsvorrichtung für die Führung einer Blasfolie

Die Erfindung betrifft eine Führungsvorrichtung (10) für die Führung einer Blasfolie (100) zwischen einem Folienblaskopf (300) und einer Abzugswalzenvorrichtung (200), aufweisend zumindest zwei einander gegenüberliegende Seitenführungen (20) für die seitliche Führung der Blasfolie (100), wobei wenigstens eine Seitenführung (20) einen ersten Führungsabschnitt (22a) und einen zweiten Führungsabschnitt (22b) aufweist, die miteinander gelenkig verbunden sind, wobei wenigstens eine Hebelkinematik (30) vorgesehen ist, welche mit einer Antriebsvorrichtung (50) in Antriebsverbindung steht und mit den beiden Führungsabschnitten (22a, 22b) derart verbunden ist, dass beim Antrieb der Antriebsvorrichtung (50) über die Hebelkinematik (30) die Anstellwinkel (a, e) der beiden Führungsabschnitte (22a, 22b) zu der Förderrichtung (F) der Blasfolie (100) variierbar sind.

Strangpressmaschine und Verfahren zur Herstellung eines Formkörpers

Eine Strangpressmaschine 1, die umfasst: einen Strangpressabschnitt 10 mit einer Schnecke 11 und einem Zylinder 12, der in der Lage ist, die Schnecke aufzunehmen, einen Formabschnitt 20 mit einem Ende und einem anderen Ende, wobei das eine Ende eine Düse 21 aufweist und das andere Ende mit einem Strangpresskanal 13 des Strangpressabschnitts 10 verbunden ist; und einen Gleichrichter 30, der zwischen dem Strangpressabschnitt 10 und dem Formabschnitt 20 angeordnet ist. Ein Wärmeisolationselement 40 ist ferner zwischen dem Formabschnitt 20 und dem Gleichrichter 30 angeordnet.

Verfahren und Vorrichtung zur Herstellung eines Schmelze- und/oder Kunststofffilms

Ein verbessertes Verfahren sowie eine verbesserte Vorrichtung zur Herstellung eines monoaxial oder biaxial gereckten Kunststoffilms zeichnet sich unter anderem durch folgende Merkmale aus:In dem sich zur Anlegelinie (111, 11') keilförmig verjüngenden Zwischenraum (Z) zwischen dem Schmelze- oder Kunststofffilm (5, 5') und dem dazu beabstandeten Walzenmantel (9) oder der dazu beabstandeten Walzenoberfläche (9') der Kühlwalze (1, 1') zumindest eine Einrichtung zur Vermeidung eines Niederschlages von Kondensat (K) in dem Zwischenraum (Z) verwendet, die so ausgebildet ist, dass ein Niederschlag von Kondensat (a) auf der dem Walzenmantel (9) zugewandt liegenden Unterseite (5a) des Schmelze- oder Kunststofffilms (5, 5') oder auf dem Walzenmantel (9) der Kühlwalze (1, 1') vermieden wird, und/oder ein sich dort niederschlagendes Kondensat (K) verdunstet oder verdampft, und/oder sich in dem Zwischenraum (Z) befindliches Kondensat abtransportiert, abgesaugt oder abgeblasen wird und/oder seitlich herausläuft ...

PROCESS AND APPARATUS FOR CLEANING WEBS TRAVELLING AT HIGH SPEED

... 1443965 Cleaning webs BASF AG 10 Oct 1973 [11 Oct 1973] 47272/73 Heading D1L Plastics film is cleaned by contacting the travelling film 9 with an absorbent material 7 detachably fixed to roller 6 or endless band 35 moving in the opposite direction, the material having had applied thereto a cleaning liq. e.g. aq. propanol, from a nozzle 8, the liq. take-up being controlled by pressure rollers 17 or 18, 19, and the cleaned film being dried by air jets 33. The material may be a non-woven polymer or velour. Figs. 4-7 (not shown) show various constructions for the roller.

Extrusion orifice adjustment mechanism

... 944,465. Film extrusion orifice. E. I. DU PONT DE NEMOURS & CO. Sept. 24, 1962 [Sept. 25, 1961], No. 36206/62. Headings B5A and B5B. An adjustable mechanism for a flat-film extrusion orifice comprises a body member 6 having an adjustable lip 3 slidably fixed thereto, a rigid lever-arm 1 having a cylindrical opening therein fixedly attached to the adjustable lip, a bendable support member 4 fixedly attached to the body member and the lever-arm to form a fulcrum about which the lever arm can pivot, a threaded cylindrical stud 7 projecting from the body member in alignment with the opening, a nut 2 having a skirt provided internally with threads, the nut and skirt being in threaded engagement with the threads of the stud, and resilient means, e.g. a spring 5 between the body member and the lever-arm adapted to maintain a constant contact between the threads of the nut and skirt of the stud. As shown, the body member is preferably U- shaped. Spring 5 may be a coil spring, cantilever spring ...

Porous plastic drainage profiles from recycled thermoplastic

MANUFACTURE OF OPTICAL CABLES

Protecting duct

A protecting duct with integrated inner and outer walls, wherein the inner wall P1 is made of a duct having a smooth outer circumferential surface and the outer wall P2 is made of a corrugated duct having one of the following cross-sectional structures: trapezoidal; triangular; and semi-circular. Preferably, the inner circumferential surface of the inner wall comprises a plurality of v-shaped longitudinal grooves P1’a. The protecting duct preferably has no seam and may have a length of from 500m-1000m and be provided in a coiled up arrangement. The protecting duct is particularly used to protect communication cables or power cables installed underground.

DEVICE FOR CALIBRATING EXTRUDED PROFILES

CARRIER FOR EXTRUSION CYLINDERS AND EXTRUSION

TRAGANORDNUNG FÜR EIN EXTRUSIONSWERKZEUG SOWIE EXTRUSIONSWERKZEUG ZUR FORMGEBUNG EINES GEGENSTANDES

The invention describes a support arrangement for retaining several calibration dies (10 to 12) of a calibrating device (8) disposed on after the other in the extrusion direction (6) on a calibrating table (21) of an extrusion plant (1). The support arrangement comprises a support plate (55) and a mounting plate (56) separate from it. A joint arrangement (60) is disposed between the support plate (55) and the mounting plate (56) by means of which the support plate (55) can be spatially displaced relative to the mounting plate (56).

HEIZ- UND KÜHLVORRICHTUNG

TRAGANORDNUNG FÜR EIN EXTRUSIONSWERKZEUG SOWIE EXTRUSIONSWERKZEUG ZUR FORMGEBUNG EINES GEGENSTANDES

The invention describes a support arrangement for retaining several calibration dies (10 to 12) of a calibrating device (8) disposed on after the other in the extrusion direction (6) on a calibrating table (21) of an extrusion plant (1). The support arrangement comprises a support plate (55) and a mounting plate (56) separate from it. A joint arrangement (60) is disposed between the support plate (55) and the mounting plate (56) by means of which the support plate (55) can be spatially displaced relative to the mounting plate (56).

MECHANISM FOR MAKING FLATTENING PROFILE WATERING GENE OF PLASTIC INDIA RUBBER OR PLASTIC MIXTURES OF DIFFERENT COMPOSITION BY EXTRUSION.

PREVENTING CORROSION

BARREL SUPPORT

A support for the discharge end of the barrel of a rotary extrusion machine includes a body having a two-armed cradle for receiving the barrel and a cover extending across the tops of the cradle arms defining an interior barrel-receiving opening. Three temperature compensating leaf springs extend around the interior circumference of the opening with an adjustable barrelengaging set screw located in the center of each leaf spring.

SCREW TO BE USED IN AN EXTRUDER AND EXTRUDER

The invention refers to a screw to be used in an extruder and to an extruder in which a screw as proposed here is employed. The screw has a modular structure so that it can be adapted very flexibly to new tasks and conditions. The modular structure of a screw contains a rod-shaped mandrel and individual screw components which are slidable onto the mandrel. The components perform the classic functions of the screw during the extrusion process, such as conveying, kneading, mixing or shearing of the plastic to be guided into and through the plant. For transmission of the occurring high torque the components are connected with the mandrel so that they positively engage and are axially braced in addition. The connection is to be performed such that it can be released by simple means. The invention relates to different aspects by means of which an advantageous positive engagement between the screw and the mandrel can be implemented.

COMPOSITIONS BASED ON BLOCK COPOLYETHERAMIDES, BLOCK COPOLYESTERS, FUNCTIONAL POLYOLEFINS AND STARCH FOR BREATHABLE FILM APPLICATIONS

Un film imper respirant comprenant: a) un copolyéther bloc amide et/ou un copolyéther bloc ester et/ou une polyoléfine fonctionnalisée; b) de l'amidon. Ce film peut être utilisé comme film sous-toiture ou film d'isolation murale d'une habitation.

A MELT PUMP FOR BUILDING UP PRESSURE BY PRESSING A MELT OF SYNTHETIC MATERIAL THROUGH A TOOL

A melt pump is provided for building up pressure for pressing a melt of synthetic material through a tool, comprising a compressor with two worm conveyors disposed in a housing, a transmission by way of which the worm conveyors are synchronously drivable and a drive, wherein the transmission is disposed between the drive and the compressor, wherein each worm conveyor in the transmission is provided with its own output shaft and wherein the worm conveyor is connected to the corresponding output shaft by way of a coupling. The worm gap between the two worm conveyors is easily adjustable at will via the coupling which comprises an output gear provided on the output shaft, a drive gear provided on the worm conveyor and a coupling sleeve gripping the output gear and the drive gear and that the drive gear and the output gear have a different number of teeth.

Rotary supporting type main disc rotating mechanism for drip molding machine

연속 스크린체인저 및 스크린 교체 장치와 압출기

... 연속 스크린체인저 및 스크린 교체 장치와 압출기에 있어서, 연속 스크린체인저에는 내강(11)이 구비되는 케이스 본체(10)와 내부 롤러(20)가 포함되며; 케이스 본체(10)에는 재료 주입구(12), 스크린 교체구(14)와 재료 배출구(13)가 구비되며; 내부 롤러(20)에는 적어도 네 개의 여과망 설치홈(21)과 각 여과망 설치홈(21)과 대응되게 연통되는 재료 유통로(22)가 구비되고, 인접된 두 여과망 설치홈(21) 사이에는 내강(11)과 밀폐 연결되는 밀폐벽(23)이 형성되며; 재료는 재료 주입구(12)를 따라 내강(11)으로 진입하고 또한 여과망(40)을 거쳐 여과된 후, 재료 유통로(22)를 따라 재료 배출구(13)로부터 배출되며; 여과망 설치홈(21)은 스크린 교체구(14)와 마주하도록 회전하고, 또한 스크린 교체구(14) 위치에서 여과망 설치홈(21) 상의 여과망(40)을 교체한다. 연속 스크린체인저는 연속적으로 중단되지 않게 여과망(40) 교체를 구현할 수 있어, 상기 연속 스크린체인저를 사용하는 장치로 하여금 연속 중단되지 않게 작업을 구현할 수 있게 한다.

FUNCTIONAL TEXTILES AND MANUFACTURING METHODS

Disclosed are textile fibers, yarns, and fabrics having improved comfort and water and odor adsorption properties, and methods of manufacturing same. The improved textiles have an increased distribution of adsorbing particles distributed at the surface of the fibers and yarns to enable greater overall surface area for adsorbance. 1. A method for making a fiber , said method comprising:a. providing a liquid polymer or liquid polymer solution;b. doping said liquid polymer or liquid polymer solution with 0.1%-2% particles by weight to create a particle-doped polymer, said particles capable of adsorbing water;c. forming the fiber from said particle-doped polymer; andd. removing a portion of the surface layer of the fiber to expose a subset of the particles to the outside environment.2. The method of claim 2 , wherein the particles are (a) present at a concentration of 250-20 claim 2 ,000 parts per million claim 2 , or (b) uniformly distributed throughout the cross section of the fiber out to and including the surface of the fiber.3. The method of claim 2 , wherein the average diameter of the particles is 0.01-0.2 of the diameter of the fiber.4. The method of claim 2 , wherein the polymer comprises a synthetic polymer.5. The method of claim 4 , wherein the synthetic polymer comprises a polyester.6. The method of claim 5 , wherein the synthetic polymer is polyethylene terephthalate.7. The method of claim 4 , wherein the fiber is formed by molten extrusion of the liquid or molten polymer.8. The method of claim 1 , wherein the polymer comprises a natural polymer.9. The method of claim 8 , wherein the natural polymer comprises cellulose.10. The method of claim 8 , wherein the fiber is formed by wet spinning the liquid polymer solution.11. The method of claim 1 , wherein the particles have an average particle diameter of between 0.2 and 50 microns claim 1 , inclusive.12. The method of claim 1 , wherein the portion of the surface layer of the fiber that is removed (a) has a ...

Method of manufacturing a belt member and the belt member

A tube material is formed by continuously extruding a thermoplastic resin material in the shape of a cylinder that has a thickness of 100 μm and a circumferential length of 800 mm. After that, in a polishing process, the tube material is rubbed with a lapping tape of #2000 while being rotated in one direction at a fixed speed, so that circumferential stripes are formed on the outer circumferential surface of the tube material. Then, the circumferential stripes are thermally transferred by pressing the outer circumferential surface of the heated tube material against a mold surface that is finished in the shape of circumferential stripes by a thermal transfer process.

Device for producing plastic hollow bodies using an extrusion blow molding method

An apparatus for producing plastic hollow bodies using an extrusion blow molding process has an extrusion unit, which is mounted in a housing, and at least one blow molding station. The extrusion unit has an extruder and an extruder head, connected to the extruder, with at least one extrusion nozzle. The longitudinal extent of the extruder defines a longitudinal direction of the apparatus. The blow molding station has a blow molding table with at least one molding tool, which is provided with an opening disposed on the side of the molding tool toward the extrusion nozzle. The blow molding table is movable on a lateral path, extending essentially perpendicular to the longitudinal direction, from a terminal position laterally of the extruder head into a position beneath the extruder head and back again, in order to make the extrusion nozzle and the opening of the molding tool coincide vertically with one another. The extrusion unit is supported vertically and laterally pivotably in the housing ...

COMPONENT FOR AN EXTRUSION LINE

УСТАНОВКА ДЛЯ ЭКСТРУЗИОННОГО ФОРМОВАНИЯ ПЛАСТИЧЕСКОЙ ОБОЛОЧКИ

Изобретение носится к экструзионной установке для экструзионного формования пластической оболочки вокруг трубчатой структуры. Техническим результатом является повышение качества пластической оболочки и уменьшение количества дефектов. Технический результат достигается экструзионной установкой для формования пластической оболочки вокруг трубчатой конструкции, содержащей экструзионный шнек, способный подавать вязкий пластический материал, и экструзионную головку. При этом экструзионная головка содержит кольцевую камеру, имеющую впускное отверстие, способное принимать вязкий пластический материал, и, с противоположной стороны, круговое выпускное отверстие. Причем экструзионная головка содержит множество проходов, образованных внутри кольцевой камеры, с тем чтобы, с одной стороны, формировать множество потоков вязкого пластического материала и, с другой стороны, заставить эти потоки стекаться один в другой в зонах объединения, организованных внутри кольцевой камеры, образуя рукав из вязкого ...

РЕДУКТОР ДВУХШНЕКОВОГО ЭКСТРУДЕРА

Настоящая полезная модель относится к экструзионному оборудованию и предназначена для использования в двухшнековых экструдерах.Редуктор двухшнекового экструдера включает корпус, входной вал, два параллельных вращающих шнеки этого экструдера выходных вала, выполненных каждый в виде вал-шестерни, и передаточный вал, передающий двум вал-шестерням подведенный к входному валу этого редуктора крутящий момент посредством закрепленных на передаточном валу зубчатых колес. На конце каждого выходного вала закреплен плоский наконечник, а в корпусе в одной плоскости с выходными валами, но перпендикулярно им, расположена и закреплена поперечная ось, на которой опорные ролики повышенной грузоподъемности установлены так, чтобы выходные валы опирались на рабочую поверхность этих опорных роликов торцевой поверхностью соответствующих плоских наконечников с возможностью вращения ими этих опорных роликов.Реализация полезной модели позволяет упростить конструкцию редуктора двухшнекового экструдера и повысить его надежность. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 179 413 U1 (51) МПК B29C 47/08 (2006.01) A23P 30/20 (2016.01) A21C 3/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B29C 47/08 (2018.02); A23P 30/20 (2018.02); A21C 3/04 (2018.02) (21)(22) Заявка: 2018102643, 23.01.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 14.05.2018 (56) Список документов, цитированных в отчете о поиске: CN 202418506 U, 05.09.2012. RU (45) Опубликовано: 14.05.2018 Бюл. № 14 (54) РЕДУКТОР ДВУХШНЕКОВОГО ЭКСТРУДЕРА (57) Реферат: Настоящая полезная модель относится к одной плоскости с выходными валами, но экструзионному оборудованию и предназначена перпендикулярно им, расположена и закреплена для использования в двухшнековых экструдерах. поперечная ось, на которой опорные ролики Редуктор двухшнекового экструдера включает повышенной грузоподъемности установлены так, корпус, входной вал, два параллельных чтобы выходные ...

Strangpresse mit beheiztem Matrizenaufnehmer

Eine Strangpresse (1) umfasst eine feststehende Struktur oder Extrusionstraverse (2), aus der das extrudierte Material austritt und vor der ein Aufnehmer (5), der eine Extrusionsmatrize (4) enthält, geeignet positioniert werden kann, wobei der Aufnehmer (5) vor dieser Extrusionstraverse (21) von einer seitlichen Warteposition in einer Wartestation (6) seitlich der Extrusionstraverse (2) zu einer Arbeitsstation (7) vor der Extrusionstraverse (2) und umgekehrt beweglich ist, wobei der Aufnehmer (5) einen Körper (10) umfasst, der einen zentralen Sitz (11) aufweist, der geeignet ist, um die Matrize (4) aufzunehmen, und von seitlichen Teilen (12, 13) begrenzt ist, die durch einen Querverbindungsteil (15) verbunden sind, wobei die Teile (12, 13, 15) den Körper (10) des Aufnehmers (5) mit einem U-förmigen Querschnitt definieren. Der Körper des Aufnehmers (10) weist Innenleitungen (18) auf, die in den oben genannten Teilen (12, 13, 15) angeordnet und geeignet sind, um sich mit Rohrleitungen (21 ...

Vorrichtung zum Plastifizieren von unidirektional faserverstärktem Thermoplastgranulat

Continuous surface treatment of extruded - profiles by corona discharge

Treatment particu. to obtain increased oxide layer density, utilising extrusions in a heated plasticised state. The extruder injection head is constructed with a profiled projecting core or mandrel over which the extrusion slides and which passes through an external electrode with a shape matching the external contour of the mandrel.

Extruder e.g. mixing or kneading machine, frame for plastic industry, has multiple hollow bodies designed as longitudinal beams, arranged partially for receiving of installation lines or formed automatically as installation lines

The frame (1) has multiple hollow bodies (2a-2d) extending parallel to a longitudinal axis and designed as longitudinal beams. Two cross beams (4, 5) extending parallel to the longitudinal axis and connectable with the hollow bodies. The hollow bodies are arranged partially for receiving of installation lines or formed automatically as the installation lines. The hollow body (2a) is provided with connection elements (16, 19) at an end. The hollow body (2c) is provided with closing elements (26) at an end. An independent claim is also included for an extruder with a frame.

Corrugator, Extrusionsanlage sowie Verfahren

Ein Corrugator (4) für eine Extrusionsanlage (1) zur Formgebung eines schlauchförmigen Kunststoffprodukts (2), mit einer Vielzahl Formbacken (6, 9, 11), einer Führungsbahn (13), entlang welcher die Formbacken (6, 9, 11) im Betrieb des Corrugators (4) von einem Anfangsbereich (14) der Führungsbahn (13) hin zu einem Ausgangsbereich (15) der Führungsbahn (13) jeweils paarweise geführt sind, einer ersten Rücklaufbahn (20, 21), entlang welcher die Formbacken (6, 9, 11) im Betrieb des Corrugators (4) von dem Ausgangsbereich (15) hin zu dem Anfangsbereich (14) geführt sind, und einer zweiten Rücklaufbahn (22, 23), mit deren Hilfe im Betrieb des Corrugators (4) einzelne Formbacken (6, 9, 11) aus der ersten Rücklaufbahn (20, 21) ausschleusbar und/oder in diese einschleusbar sind.

Durchflusszelle mit Sonotrode für die Beeinflussung von ruhenden und strömenden Kunststoffschmelzen

Die Erfindung betrifft eine Durchflusszelle mit Sonotrode für die Beeinflussung von ruhenden und strömenden Kunststoffschmelzen gemäß dem Oberbegriff des Anspruchs 1.Aufgabe ist es eine Durchflusszelle zu schaffen, welche eine schmelzedichte und somit leckagefreie Verbindung der Sonotrode (Ultraschallsonde) mit einem, den Schmelzekanal umgebenden Gehäuse ermöglicht.Erfindungsgemäß ist die universelle Durchflusszelle mit einer Sonotrode 1 versehen. Die Durchflusszelle ist geeignet für Extruder oder Spritzgießmaschinen. Wahlweise kann die Sonotrode 1 mit dem Sonotrodenflansch 12 über einem zwischen geordneten Aufnahmekörper 2 oder auch direkt mit dem Gehäuse 3 verbunden sein. Im Aufnahmekörper 2 oder im Gehäuse 3 ist eine erste Hülse 5 angeordnet, welche sich bis in das Gehäuse 3 erstreckt. Die erste Hülse 5 ist im Gehäuse 3 mittels einer umschließenden zweiten Hülse 6 geführt. Zwischen dem Sonotrodenflansch 12 und dem Aufnahmekörper 2 bzw. dem Gehäuse 3 und der innen angeordneten ersten ...

Reconfigurable nozzle for material deposition

An extruder 10 for depositing a material includes an extruder body 14 including an extruder drive system 16 and defining a body axis, and an extruder nozzle. The extruder nozzle 12 includes a nozzle tip 20 defining an exit orifice 21, a reconfigurable arm 22 defining a material path in fluid communication with the exit orifice, the reconfigurable arm including a proximal end 25 coupled to the extruder body and coaxial with the body axis, and a distal end 27 coupled to the nozzle tip, and a plurality of actuators 30 operatively associated with the reconfigurable arm and configured to move the reconfigurable arm between an initial configuration, in which the distal end of the reconfigurable arm is coaxial with the body axis, to a displaced configuration. In the displaced configuration, the distal end of the reconfigurable arm is at least one of positioned offset from the body axis and oriented at an angle relative to the body axis. The plurality of actuators may include at least three servo ...

DEVICE FOR THE PRODUCTION OF HOLLOW BODIES FROM PLASTIC IN THE EXTRUDING BLOW MOULDING

HEIZ- UND KÜHLVORRICHTUNG

Heating and cooling system for extruder cylinders comprises an air cooler and a heater comprising an electrical heating coil (20) passing through a set of insulators (8) arranged in a ring. These are fastened to the cylinder wall using a band (11) around the heater with positioning lugs (36) on the inside and loops (32, 33) at its end.

VORRICHTUNG ZUR AUSBRINGUNG VON KUNSTSTOFFSCHMELZE

EXTRUDER

The invention relates to an extruder having a housing (1), comprising at least two conveying shafts (2, 3) having mutually wiping conveying cross-sections which are disposed so as to be driven in the same direction in at least two housing bores (11, 12) which are of cylindrical or conical design and of which the axes (15, 16) are disposed parallel or at an angle to one another. The distance (A) between the axes of the two housing bores (11, 12) is greater than D/1.4142, wherein D is the diameter of the cylindrical bore or the greatest diameter of the conical bore, and a clearance (a`) is provided between the housing bores (11, 12) and the external diameter (DE) of the conveying shafts (2, 3). Each conveying shaft (2, 3) has a plurality of conveying sections (17a to d, 18a to d), wherein the rotational angle of at least two adjacent conveying sections (17a, 17b, 18a, 18b) on the respective conveying shaft (2, 3) is 180°. The centre point (PM) of the cross-sectional profile of each cross-section ...

Filtervorrichtung

Die Erfindung betrifft eine Filtervorrichtung für Polymerschmelzen mit einem Filtersieb (1), durch das die zu reinigende Polymerschmelze geführt ist, wobei die Filtervorrichtung zumindest ein Schaberelement (2) aufweist, das mit einer Schabkante (3) über die zustromseitige Oberfläche (4) des Filtersiebes (1) gleitet bzw. mit seinem der Schabkante (3) nahen Endbereich an der Oberfläche (4) anliegt und die an der Oberfläche (4) anhaftenden sowie die vor den Sieblöchern (5) liegenden Verunreinigungen (6) im Zuge seiner Bewegung über die Oberfläche (4) abhebt und/oder abstreift. Erfindungsgemäß ist vorgesehen, dass die Schabkante (3) zumindest in ihrem in Bewegungsrichtung (16) voreilenden Endbereich eine Rundung (7) aufweist, deren Radius (R) weniger als 90 %, vorzugsweise weniger als 50 %, insbesondere weniger als 20 %, des maximalen Durchmessers bzw. der maximalen Öffnungsweite der Sieblöcher (5) beträgt.

Filtervorrichtung

Die Erfindung betrifft eine Filtervorrichtung für Polymerschmelzen mit einem Filtersieb (1), durch das die zu reinigende Polymerschmelze geführt ist, wobei die Filtervorrichtung zumindest ein Schaberelement (2) aufweist, das mit einer Schabkante (3) über die zustromseitige Oberfläche (4) des Filtersiebes (1) gleitet bzw. mit seinem der Schabkante (3) nahen Endbereich an der Oberfläche (4) anliegt und die an der Oberfläche (4) anhaftenden sowie die vor den Sieblöchern (5) liegenden Verunreinigungen (6) im Zuge seiner Bewegung über die Oberfläche (4) abhebt und/oder abstreift. Erfindungsgemäß ist vorgesehen, dass die Schabkante (3) zumindest in ihrem in Bewegungsrichtung (16) voreilenden Endbereich eine Rundung (7) aufweist, deren Radius (R) weniger als 90 %, vorzugsweise weniger als 50 %, insbesondere weniger als 20 %, des maximalen Durchmessers bzw. der maximalen Öffnungsweite der Sieblöcher (5) beträgt.

VORRICHTUNG ZUR AUSBRINGUNG VON KUNSTSTOFFSCHMELZE

Absorbable implants for plastic surgery

Absorbable implants for breast surgery that conform to the breast parenchyma and surrounding chest wall have been developed. These implants support newly lifted breast parenchyma, and/or a breast implant. The implants have mechanical properties sufficient to support a reconstructed breast, and allow the in-growth of tissue into the implant as it degrades. The implants have a strength retention profile allowing the support of the breast to be transitioned from the implant to regenerated host tissue, without significant loss of support. Three-dimensional implants for use in minimally invasive mastopexy/ breast reconstruction procedures are also described, that confer shape to a patient's breast. These implants are self-reinforced, can be temporarily deformed, implanted in a suitably dissected tissue plane, and resume their preformed three-dimensional shape. The implants are preferably made from poly-4-hydroxybutyrate (P4HB) and copolymers thereof. The implants have suture pullout strengths ...

APPARATUS FOR EXTRUDING PLASTIC MATERIALS

METHOD OF USING TRACK ETCHED MEMBRANES FOR THE FILTRATION OF BIOLOGICAL FLUIDS

Track-etched membranes for filtration are provided. Filtration methods utilizing such membranes and cell culture methods are also provided.

ABSORBABLE IMPLANTS FOR PLASTIC SURGERY

Absorbable implants for breast surgery that conform to the breast parenchyma and surrounding chest wall have been developed. These implants support newly lifted breast parenchyma, and/or a breast implant. The implants have mechanical properties sufficient to support a reconstructed breast, and allow the in-growth of tissue into the implant as it degrades. The implants have a strength retention profile allowing the support of the breast to be transitioned from the implant to regenerated host tissue, without significant loss of support. Three-dimensional implants for use in minimally invasive mastopexy/ breast reconstruction procedures are also described, that confer shape to a patient's breast. These implants are self-reinforced, can be temporarily deformed, implanted in a suitably dissected tissue plane, and resume their preformed three-dimensional shape. The implants are preferably made from poly-4-hydroxybutyrate (P4HB) and copolymers thereof. The implants have suture pullout strengths ...

WALKING PLANE MOULD

This invention relates to a novel system for processing waste, plastic and fiber products into new, usable products through the design and implementation of a new walking plane moulding system, incorporating three separate linear interacting motions and positive supply of lubricant sealant through these actions to the exterior of the extrusion product at the same time as inducing a forward motion in the extrudite. The walking plane mould action between upper and lower mould sections, in addition to the cyclical action of the entire mould forwards and reverse, cause the extrudite to move outwardly. During this course, the coolant fluid removes the required heat from the interior and exterior of the extrudite allowing this product to cure/set-up in this single operation.

3D printing and plastic extrusion molding dual purpose machine

FILTER DEVICE

ARTICLE LABELING METHOD

A label is placed in due contact with the surface of an article being extruded and then forcibly urged to a preselected depth in the plasticized article. The label and the article are thereafter cooled.

Handheld extruder welding device

A handheld extruder welding device is provided for welding thermoplastic synthetic materials by means of an extrusion screw with a feed zone and a conveying/plasticizing zone. In the area of the feed zone, a feed channel with a ridge running in longitudinal direction is located in a sleeve. This ridge prevents the inserted plastic welding wire from twisting and looping inside and especially outside the handheld extruder welding device.

УСТРОЙСТВО ДЛЯ ИЗГОТОВЛЕНИЯ ПОЛЫХ ИЗДЕЛИЙ ЭКСТРУЗИОННО-РАЗДУВНЫМ ФОРМОВАНИЕМ

Изобретение относится к устройствам для изготовления полых изделий экструзионно-раздувным формованием. Устройство для изготовления полых изделий из пластмассы экструзионно-раздувным формованием содержит экструзионный блок, экструдер и соединяемую с экструдером экструзионную головку с одним экструзионным соплом. Блок установлен в раме корпуса. Устройство имеет одну позицию с формами для формования с раздувом, которая имеет стол с формами для формования с раздувом, с одной формой, снабженной отверстием, выполненным на обращенной к экструзионному соплу стороне формы. Форма может перемещаться по проходящей перпендикулярно к продольному направлению боковой направляющей из концевого положения сбоку от экструзионной головки в положение под экструзионной головкой и снова назад для того, чтобы привести экструзионное сопло и отверстие формы для формования с раздувом в вертикальное перекрытие друг с другом. Экструзионная головка установлена с возможностью вертикального наклона и поворота в сторону ...

ФИЛЬТРУЮЩЕЕ УСТРОЙСТВО

Изобретение относится к фильтрующему устройству для расплава полимера с фильтровой сеткой, через которую направляют подлежащий очистке расплав полимера, причем фильтрующее устройство содержит по меньшей мере один элемент скребка, который своей кромкой скребка через расположенную на стороне набегания потока поверхность фильтровой сетки прилегает своей ближней к кромке скребка концевой областью к поверхности и в ходе своего движения по поверхности поднимает и/или снимает лежащие перед отверстиями сетки загрязнения. Кромка скребка, по меньшей мере, в своей опережающей в направлении движения концевой области содержит закругление, радиус которого меньше 90%, предпочтительно меньше 50%, в частности меньше 20% величины максимального диаметра или максимального диаметра отверстий сетки. Изобретение обеспечивает создание фильтрующего устройства, которое имеет длительный срок службы и простую конструкцию, эффективно удаляет загрязнения с поверхности фильтровой сетки и отводит их. 4 з.п. ф-лы, 5 ил ...

УПЛОТНЕНИЕ ДЛЯ ПРИМЕНЕНИЯ В ЭКСТРУЗИОННОМ УСТРОЙСТВЕ

... 1. Уплотнение (100, 200, 300) для применения в экструзионном устройстве для изготовления бесконечных профилей, в частности полимерных труб (10), включающее в себяупругую уплотнительную шайбу (126, 326), которая расположена в плоскости, примерно перпендикулярной к направлению экструзии, и имеет пропускающее бесконечный профиль (10) пропускное отверстие (132, 332), снабженное прилегающим к бесконечному профилю (10) уплотнительным краем (130, 330), а также расположенные по уплотнительному краю (130, 330) присоединительные средства (128, 328), а такжезажимные средства (120, 220, 320) для создания силы, действующей на присоединительные средства (128, 328) радиально к оси экструзии, причем зажимные средства (120, 220, 320) расположены в плоскости, параллельной уплотнительной шайбе (126, 326), имеют проходное отверстие (122, 222) для бесконечного профиля (10) и включают в себя соединительные средства (124, 224, 324) для соединения присоединительных средств (128, 328) с зажимными средствами (120 ...

УСТАНОВКА ДЛЯ ЭКСТРУЗИОННОГО ФОРМОВАНИЯ ПЛАСТИЧЕСКОЙ ОБОЛОЧКИ

... 1. Экструзионная установка (10) для экструзионного формования пластической оболочки вокруг трубчатой конструкции (15), содержащая экструзионный шнек (12), способный подавать горячий размягченный вязкий пластический материал, и экструзионную головку (14), при этом упомянутая экструзионная головка содержит кольцевую камеру (24), имеющую впускное отверстие (26), способное принимать упомянутый вязкий пластический материал, и, с противоположной стороны, круговое выпускное отверстие (28), при этом упомянутая экструзионная головка содержит множество проходов, образованных внутри упомянутой кольцевой камеры (24), с тем чтобы, с одной стороны формировать множество потоков вязкого пластического материала, и, с другой стороны, заставить упомянутые потоки стекаться один в другой в зонах объединения, организованных внутри упомянутой кольцевой камеры, образуя рукав из вязкого пластического материала, способного течь через упомянутое круговое выпускное отверстие (28), чтобы сформировать упомянутую пластическую ...

Головка для соэкструзии

Изобретение относится к устройствам для производства многослойных изделий плоской и других форм, а именно к головке для соэкструзии. Головка для соэкструзии содержит корпус, выполненный разъемным, и состоящий из секций. В центре между двумя секциями предусмотрено углубление для циркуляции жидкости. Секции образуют между собой два формующих канала, сообщающихся с питающими каналами. Углубление для циркуляции жидкости имеет треугольное сечение, размещено в делителе, имеющем форму треугольной призмы, внешние грани которой плоские, а вершина расположена в зоне выходного окна, переходящего в полость большего размера. На поверхности внешней верхней плоской грани делителя выполнены параллельные продольные ручьи, глубина и ширина которых увеличивается от питающих каналов к выходному окну. На поверхности внешней нижней плоской грани делителя размещены параллельные продольные ребра, высота и глубина которых увеличивается от питающих каналов к выходному окну. Расстояния между продольными ребрами и ...

ФИЛЬТРУЮЩЕЕ УСТРОЙСТВО

ЭКСТРУДЕР

... 1. Экструдер с корпусом (1) по меньшей мере с двумя подающими валами (2, 3) с взаимно обскабливающими друг друга поперечными сечениями подачи, которые с возможностью вращения в одном направлении расположены по меньшей мере в двух отверстиях (11, 12) корпуса, которые выполнены цилиндрическими или коническими и оси (15, 16) которых расположены параллельно или под углом друг к другу, причем расстояние (А) между осями обоих отверстий (11, 12) корпуса больше, чем D/1, 4142, причем D является диаметром цилиндрического отверстия или наибольшим диаметром конического отверстия и причем между отверстиями (11, 12) корпуса и наружным диаметром (DE) подающих валов (2, 3) предусмотрен зазор (а'), отличающийся тем, что каждый подающий вал (2, 3) имеет несколько подающих участков (17a-d, 18a-d) и угловое смещение по меньшей мере между двумя соседними подающими участками (17а, 17b, 18a, 18b) на соответствующем подающем валу (2, 3) составляет 180° относительно друг друга, причем центр (PM) профиля поперечного ...

VERFAHREN ZUM HERSTELLEN EINER SPRITZGIESSFORM ZUM FORMEN SCHRAUBENFOERMIG VERWUNDENER STRANGPRESSTEILCHEN.

Verdichteraggregat

VORRICHTUNG ZUR HERSTELLUNG VON QUERPROFILIERTEN DRAINAGEROHREN.

VERFAHREN ZUR HERSTELLUNG VON BESCHICHTUNGSDÜSENTEILEN

Drive system for feeding a continuous insert into a hollow plastic product extrusion die comprises a tapered fluid distribution channel with slits entering a channel on both sides of the insert

Air supply line connects with insert feed system to die to create venturi nozzle. The air line supplies distribution channel surrounding insert at point remote from insert feed channel. The distribution channel has narrowing taper in insert conveying direction towards insert feed channel. At narrow end of distribution, channel slits form inlets into major part of periphery of adjoining conveying channel through which air drives insert. A fluid, preferably compressed air, supply line connects with the insert feed system to the die to create a venturi nozzle. The air line supplies a distribution channel surrounding the insert at a point remote from an insert feed channel. The distribution channel has a narrowing taper in the insert conveying direction towards the insert feed channel. At the narrow end of the distribution channel slits form inlets into a major part of the periphery of an adjoining conveying channel through which the air drives the insert. The conveying channel has a rectangular ...

Gear box with variably coupled oscillation and rotation for kneading machine

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.

Method for manufacturing film for film capacitor

A film for film capacitors having a thickness of 10 microns or less, is manufactured by the successive steps of: mixing and preparing a forming material composed of a thermoplastic resin composition; melting and extruding the forming material to a film through a T-die; pinching and cooling the film between a pressure roll and a cooling roll having a rough surface for forming a rough surface to the film, wherein the rough surface of the cooling roll has (σ/Ra) of 0.2 or less, and the rough surface of the film has (σ/Ra) of 0.2 or less, where (Ra) is an arithmetic average roughness defined by a method specified in JIS B 0601 2001, and (σ) is a standard deviation; and rolling up the cooled film onto a winding tube in a winding unit.

Method and apparatus for producing fully cooked extrudates with significantly reduced specific mechanical energy inputs

Improved extruders and methods for the extrusion cooking of comestible products such as human foods or animal feeds are provided wherein the products may be produced with very low specific mechanical energy (SME) inputs as compared with conventional processing. The methods preferably involve introduction of very high levels of steam into the extruder barrel during processing, which concomitantly reduces necessary SME inputs required to achieve desired cook and expansion levels in the products. In accordance with the invention, fully-cooked pet foods can be fabricated with SME inputs of up to about 18 kWhr/T, whereas aquatic feeds can be fabricated with SME inputs of up to about 16 kWhr/T.

Feeding device having a double-disk feed having a separated drive and method for operating such a feeding device

A feeding device for an in-line screw machine with a shaft rotating in a feed container. A conveying screw is arranged in the direction toward the longitudinal axis of the rotating shaft. At least one disk wheel is allocated to each longitudinal side in the feed container. A separate drive is allocated to each disk wheel for purposes of rotational movement.

Apparatus and method for manufacturing raw rubber strip

An apparatus for intermittently manufacturing a raw rubber strip comprises a screw extruder, an extruder head having a preforming nozzle, a gear pump therebetween, a pair of calender rolls, a roll-gap changer for switching between a close state and an open state of calender rolls, and a controller for controlling the gear pump, the calender rolls and the roll-gap changer to let the calender rolls in the open state prior to the stopping of the rotation of the calender rolls.

Extrusion process and device for producing elastomeric compounds

An extrusion device for producing elastomeric compounds, includes a holding body internally confining a chamber and at least one extrusion screw disposed in the chamber. The device further includes a plurality of interchangeable extrusion heads alternatively installed on the holding body at a discharge opening of the chamber. The choice of using a type of head rather than another or leaving the discharge opening free is carried out based on the physico-chemical features of the elastomeric compound to be treated, so as to maintain the temperature and/or pressure of the outgoing compound under critical threshold values for such a compound.

Mixing/extruding apparatus and start-up method for mixing/extruding apparatus

A mixing/extruding apparatus having a mixer/extruder provided with a diverter, an electric motor for driving this mixer/extruder, and a power supply device for supplying a drive power to this electric motor, and the power supply device includes a start-up power supply portion for supplying a drive power with which the electric motor is rotated at low speed with a smaller output than an output generated upon the normal operation to the electric motor, an operation power supply portion for supplying a drive power with which the electric motor is rotated at high speed with the output generated upon the normal operation to the electric motor, and a power supply switching device for switching the drive power from the start-up power supply portion to be supplied to the electric motor to the drive power from the operation power supply portion.

Device for distribution of a plastic melt

A device for distribution of a plastic melt, wherein the device can have a main housing body. The main housing body can have at least one inlet channel and at least one outlet channel for the plastic melt. At least one receiving opening can extend between the at least one inlet channel and at least one outlet channel. A movable distributor body can be disposed within the receiving opening. The movable distributor body can have sealing surfaces for sealing with the receiving opening. The movable distributor body can be guided by the sealing surfaces.

Apparatus And Method For Skinning Articles

A skinning apparatus including: a manifold having: a chamber, one or more channels, or both, to receive a source of flowable cement and to direct the received flowable cement to an interior skinning region or skinning chamber surrounding at least a portion of the lateral surface of a first article received in the skinning chamber, and to form a cement skin on the lateral surface of the received article; a source of motive force to controllably urge the received article into and through the skinning chamber; and a support member to receive and support the resulting skinned article. Also disclosed is a method for skinning a ceramic article using the aforementioned skinning apparatus, as defined herein.

Filtering device for fluids

The present invention relates to a filtering device for fluids, in particular thermoplastics, comprising a screen carrier ( 2 ) which has a rotationally cylindrical outer face ( 41 ) and is mounted rotatably in a rotationally cylindrical recess ( 5 ), adapted to its circumference, of a stationary housing ( 3 ) and in which a number of screening nests ( 6 ) having filter arrangements ( 7 ) are formed along its circumference. According to the invention, there is provision whereby the screen carrier ( 2 ) is penetrated by a rotationally cylindrical core part ( 1 ) and is mounted rotatably on this, the core part ( 1 ) and the housing ( 3 ) being designed to be stationary and fixed in terms of rotation with respect to the rotatable screen carrier ( 2 ). (FIG. 1 )

Honeycomb Extrusion Apparatus and Methods

A honeycomb extrusion apparatus includes a die body and a mask defining a peripheral gap. The peripheral gap includes a first extrusion cross section at a first radial location relative to the extrusion axis and a second extrusion cross section at a second radial location relative to the extrusion axis. An overall flow area of the first extrusion cross section is less than an overall flow area of the second extrusion cross section. In further examples, methods include co-extruding a honeycomb body with an integral skin with the overall flow area of the first extrusion cross section being less than the overall flow area of the second extrusion cross section. In further examples, methods include compensating for different skin flow characteristics associated with a particular honeycomb network configuration of discharge slots in a die body.

Method and device for controlling the temperature of polymer melt

A method for controlling the temperature of a polymer melt in an extrusion tool includes flowing the polymer melt via at least one flow channel from an input to an output and around at least one temperature-control element in the at least one flow channel. The temperature control element includes a plurality of temperature control units. The temperature of the polymer melt flowing around the temperature-control element is controlled by individually controlling each of the temperature-control units so as to vary a degree of temperature control of the temperature-control element such that a degree of temperature control is controllable to be the same or different at locations throughout the temperature control-element.

Multilayer flexible tube

A flexible tube includes a first polymer layer and a second polymer layer adjacent to the first polymer layer. The first polymer layer includes a polyolefin, an ethylene vinyl acetate copolymer, an ethylene/norbornene copolymer, a styrenic block copolymer, a styrene butadiene copolymer, or combination thereof having a total organics content of less than about 12 μg/L per USP 34, Chapter 643. The second polymer layer includes a polyolefin, a styrenic block copolymer, a blend thereof, or combination thereof, wherein the second polymer layer has a shore A durometer of less than about 65. Further included is a method of forming the flexible tube.

METHODS FOR DISPENSING AND ADHERING HOT MELT ENTRAINED POLYMERS TO SUBSTRATES

Disclosed are methods for forming and adhering an entrained polymer structure to a substrate. The methods include providing a substrate () configured to receive application of a molten entrained polymer (). A mineral entrained polymer in molten form is applied in a predetermined shape, to a surface of the substrate, to form a solidified entrained polymer structure on the substrate. The entrained polymer includes a monolithic material formed of at least a base polymer () and a mineral active agent () to absorb excess moisture. The surface of the substrate is compatible with the molten entrained polymer so as to thermally bond with it. In this way, the entrained polymer bonds to the substrate and solidifies upon sufficient cooling of the entrained polymer. The polymer can have a channeling or foaming agent (), eg polyglycol. To apply the polymer is provided a hot melt dispensing apparatus comprising: a feeder () (optionally an extruder or loader) for providing a flow of mineral entrained polymer in molten form; one or more hoses (), each of which having an internal lumen in fluid communication with an exit () of the feeder to receive flow of the mineral entrained polymer in molten form, the lumen terminating at an applicator () to which the entrained polymer in molten form is conveyed; the applicator comprising a dispenser () for applying the entrained polymer in the predetermined shape to the surface of the substrate. The hose and the dispenser can be heated. 1. A method for forming and adhering an entrained polymer structure to a substrate , comprising the steps of:a. providing a substrate configured to receive application of a entrained polymer in molten form, wherein the entrained polymer comprises a monolithic material formed of a base polymer, a mineral active agent, and a channeling agent; andb. applying the entrained polymer in molten form in a predetermined shape, to a surface of the substrate, to form thereon a entrained polymer structure once solidifies ...

METHOD AND APPARATUS FOR DIE COATING A SUBSTRATE WITH HIGH VISCOSITY MATERIALS

A method is disclosed for die coating a moving substrate with a high viscosity material such as a polymer. The method includes heating and mixing ingredients to form a homogenous mixture, pumping the mixture around a circulation loop with a first pump, maintaining a predetermined pressure of the mixture within the circulation loop, drawing mixture from the circulation loop with a second pump, delivering the mixture using the second pump to an extrusion die adjacent the moving substrate to coat the substrate, and controlling the second pump as a function of at least the speed of the moving substrate to maintain predetermined characteristics of the coating mixture applied to the moving substrate. An apparatus for carrying out the method also is disclosed. 1. A method comprising the steps of:moving a substrate along a processing path at a line speed;mixing a viscous material having a viscosity of 10,000 cP to 20,000 cP at 375° Fahrenheit in a tank to obtain a mixture;pumping the mixture from the tank, through a circulation loop, and back to the tank using a first pump;controlling a pressure in the circulation loop as the mixture is circulated through the circulation loop;extracting at least part of the mixture from the circulation loop using a second pump coupled to the circulation loop;using the second pump, pumping the at least part of the mixture through an extrusion die and onto the substrate; andcontrolling the pumping of the at least part of the mixture by the second pump based, at least in part, on the line speed of the substrate so that a coating of the mixture is deposited onto the substrate by the extrusion die as the substrate is moved along the processing path at the line speed.2. The method of claim 1 , wherein the step of moving the substrate comprises moving a shingle material along the processing path claim 1 , wherein the shingle material comprises a glass mat.3. The method of claim 1 , wherein the second pump comprises a positive displacement pump.4. ...

Environmentally friendly dry cleaning bags and methods of making same

A method of manufacturing a biodegradable dry cleaning bag is disclosed, the method including loading an environmentally friendly slurry into a hopper, extruding the environmentally friendly slurry, passing the environmentally friendly slurry through a die, inflating the environmentally friendly slurry into a cylindrical shape, thereby creating a cylindrical member, passing the cylindrical member over a first roller, and rolling the cylindrical member onto a roll.

Rubber-coated cord manufacturing device and rubber-coated cord manufacturing method

Provided is a rubber-coated cord manufacturing technique with which the occurring of rubber spew can be prevented and waste in the form of scrap can be reduced during a rubber-coated cord manufacturing step, and with which the burden on an operator can be reduced and a high-quality rubber-coated cord can be stably produced. This rubber-coated cord manufacturing device comprises: an extrusion head that coats rubber on the surface of a cord, the extrusion head including a screw rotation type extruder which extrudes rubber, an insertion port into which the cord is inserted, and a flow path of rubber which has been extruded from the extruder; a cord supply device that supplies the cord to the extrusion head; a rubber-coated cord winding device that winds a rubber-coated cord which has been coated with rubber by the extrusion head; and a head pressure controller that controls the head pressure of the extrusion head. The head pressure controller performs control to maintain the head pressure at a prescribed level by feeding back to the extruder the monitoring results of the head pressure while the cord is coated with the rubber, and adjusting the rotation speed of the screw.

RAM EXTRUDING THIN PANELS OF UHMW POLYMERS

A ram extrusion apparatus including a die having several thermal zones, a hopper for introducing a granular polymer resin to the die, and a ram for moving the granular polymer resin through the thermal zones of the die and out from an outlet end thereof at a temperature above the crystalline melt temperature of the polymer resin. The hopper may be designed to deliver the polymer resin into a resin inlet of the die in a plurality of specifically metered amounts which may vary across a width of the resin inlet end of the die. The apparatus may further include one or more finishing tables positioned after the outlet end of the die for receiving and moving the extruded resin away from the outlet end of the die so that there is no backpressure on the extruded resin, and which provide compression force and even cooling to the extruded resin. 1. An apparatus for extruding a polymer resin , the apparatus comprising:a die having an inlet end and an outlet end;a plurality of thermal zones in the die spaced along a width and a length of the die, wherein the thermal zones proximate the outlet end of the die are configured to heat a full thickness and width of the polymer resin at the outlet end to an exit temperature that is above the crystalline melt temperature of the polymer resin;a ram mounted within the inlet end of the die and configured to extend from a retracted position to an extended position along a longitudinal axis of the die to move the polymer resin from a resin inlet through the plurality of thermal zones and out from the outlet end of the die as an extrudate, the polymer resin being melted and compressed to form an extrusion profile of the die during progression through the thermal zones of the die;at least one hopper configured to introduce the polymer resin in a granular state into the resin inlet of the die, wherein the resin inlet is proximate the inlet end of the die and downstream of the retracted position of the ram; andmeans for moving the extrudate ...

Methods for Generating Interfacial Surfaces and Devices Therefor

Embodiments of the present invention include a novel interfacial surface generator (ISG) design comprised of helical channels and associated methods of using the new design. The novel design addresses processing challenges associated with conventional ISG designs used in layer multiplying coextrusion systems. Embodiments of the present invention may be used in either a static configuration or “active” configuration. In one active configuration, two counter-rotating cylindrical rods and/or moving belts may be used to induce drag, or Couette, flow. Conveyance of materials through the ISG may be due to pressure driven flow, drag flow, or a combination of these. 1. A method for processing a first composite stream comprised of at least two flowable materials , which comprises:dividing the first composite stream into two composite sub-streams, each sub-stream comprising the at least two flowable materials;guiding the first sub-stream along a right-handed helical path and guiding the second sub-stream along a left-handed helical path while compressing both sub-streams in one of either the radial or axial direction of their helical paths simultaneously with expanding both sub-streams in the other of the radial or axial direction of their helical paths; andrecombining the sub-streams to form a second composite stream comprising the at least two flowable materials.2. The method of claim 1 , wherein the method for processing is a method for generating interfacial surfaces within a first composite stream comprised of at least two flowable materials arranged in overlapping layers claim 1 , said method comprising:dividing the first composite stream into two composite sub-streams, each sub-stream comprising the at least two flowable materials arranged in overlapping layers;guiding the first sub-stream along a right-handed helical path and guiding the second sub-stream along a left-handed helical path while compressing both sub-streams in one of either the radial or axial direction ...

Roller device for treating flat material, in particular for smoothing foils or plates, smoothing device, and method for producing flat material, in particular foils or plates

The present invention relates to a roller device for treating sheet-form material, in particular for smoothing films (F*) or sheets, comprising a first roller unit 1 and a second roller unit 2, wherein each roller unit ( 1, 2 ) comprises: at least one drive motor with a motor moment of inertia J M , a roller ( 10, 20 ) with a roller moment of inertia J W , and at least one gear for the kinematic coupling of the roller ( 10, 20 ) to the at least one drive motor with a transmission ratio i MW between the at least one drive motor and the roller ( 10, 20 ), wherein the roller ( 20 ) of the second roller unit ( 2 ) is rotatable in the opposite direction to the roller ( 10 ) of the first roller unit ( 1 ), and wherein there is formed between the roller ( 1 0 ) of the first roller unit ( 1 ) and the roller ( 20 ) of the second roller unit ( 2 ) a first roller gap ( 40 ) through which the sheet-form material (F) is guided. According to the invention, the roller device is characterised in that in at least one of the first and second roller units ( 1, 2 ), the moment of inertia/speed ratio between the at least one drive motor and the roller ( 10, 20 ) M MW is ≦6 and the transmission ratio 1<i MW ≦40 is chosen, wherein M MW = J M J W · i MW 2 where i MW = ( n M n W ) where n M : speed of the drive motor and n W : speed of the roller ( 10, 20 ). The invention relates further to a smoothing device for smoothing films or sheets, and to a process for the production of sheet-form material, in particular of films or sheets.

Inner deckle for die and die

An inner deckle for a die includes a shaft-shaped deckle main body and a sheet- or film-shaped deckle auxiliary portion extending from the deckle main body. The inner deckle is arranged at each end of a die. The die includes a die piece and is formed with a manifold and a slit. The deckle main body includes a seal reinforcing portion. A liquid material is supplied into the manifold. The seal reinforcing portion includes at least one sealing member having two or more films. The films slide and are simultaneously elastically deformed against an inner wall of the manifold when a position of the inner deckle is moved with respect to the die. The films cooperate with each other and are closely attached to the inner wall by an elastic restoring force when the position of the inner deckle is fixed with respect to the die.

TPS/PLA/PBAT BLEND MODIFIED BIODEGRADABLE RESIN PREPARED BY USING CHAIN EXTENDER AND PREPARATION METHOD THEREOF

A thermoplastic starch (TPS)/polylactic acid (PLA)/poly(butylene adipate-co -terephthalate) (PBAT) blend modified biodegradable resin is prepared by using a chain extender, and is prepared from the following raw materials: 20-30 parts by weight of TPS; 20-30 parts by weight of PLA; 40-60 parts by weight of PBAT; and 0.5-0.9 parts by weight of a chain extender KL-E. The preparation method is a two-step method: blending the TPS with the PBAT in a twin screw for granulating; mixing TPS/PBAT mixed granules with PLA granules, and dissolving the chain extender KL-E into an ethyl acetate solution. The chain extender KL-E can be uniformly distributed in PLA and TPS/PBAT mixed granules by using a spraying method, and the remaining short-chain molecules and terminal carboxyl molecules in the mixed granules can be changed into long-chain molecules. 1. (canceled)2. A method for preparing a TPS/PLA/PBAT blend modified biodegradable resin by using a chain extender , comprising the steps of:(1) adding a chain extender KL-E into an ethyl acetate solution, and stirring until the chain extender KL-E is dissolved;(2) weighing and mixing TPS granules and PBAT granules, feeding mixed granules into a twin-screw extrusion granulator, blending in a twin screw in a high-temperature and high-shear manner, extruding the mixed granules out of a die orifice, stretching, air-cooling, and cold-cutting to obtain TPS/PBAT blend modified biodegradable resin granules; and(3) mixing the TPS/PBAT blend modified biodegradable resin granules with PLA granules, spraying the solution obtained in step (1) on a surface of the mixed granules by a spraying method, feeding the mixed granules into the twin-screw extrusion granulator, blending in the twin screw in the high-temperature and high-shear manner, extruding, stretching, and cold-cutting to obtain TPS/PLA/PBAT blend modified biodegradable resin granules.3. The method for preparing the TPS/PLA/PBAT blend modified biodegradable resin by using the chain ...

Extrusion device for the processing of plastics, which can be coupled to systems for supplying thermosetting and thermoplastic polymers

A group of hollow modules through which the material to be extruded flows, is provided that includes at least: a rectangular heating-shaping module (6), in which the material undergoes a temperature increase and takes on the desired shape; and a tubular cooling-solidification module (8), in which the material, which has taken on the desired shape, changes from liquid to solid with said shape. A heating-reaction module (2) is provided upstream of module (6). The heating-reaction module (2) includes an interchangeable hollow tube (3) with an external heating system (4). The heating-shaping module (6) includes detachable parts (7) and includes another external heating system (4) based on the auto-acceleration of the curing reaction and of the heat supply from said system (4). The tubular portion between module (2) and module (6) includes a shaping coupling (5) equipped with a through-hole. The extrusion module includes a circuit through which the polymer flows into at least two push compartments (20).

SYSTEM AND METHOD FOR ON-DEMAND COLORIZATION FOR EXTRUSION-BASED ADDITIVE CONSTRUCTION

A color 3D printer and its method of use are disclosed. The color 3D printer uses a number of chambers to dye a filament to a given color. This colored filament is then extruded, pursuant to an associated 3D model of an object, to produce varying colored physical objects, on demand, with the use of a single filament and a single print head. Further, the color 3D printer features a waste management apparatus which provides a number of ways to dispose of waste fluid. 1. An extrusion-based 3D printer , for constructing objects out of a completely colored filament , the extrusion-based 3D printer comprising: wherein each subchamber has an interior chamber equipped with a single', 'opening, the opening being sealed by a penetrable membrane,', 'wherein one of the subchambers is filled with a solvent;, 'a tank system having a plurality of puncture mechanisms, a corresponding number of subchambers and a corresponding number of pumps, each pump being in fluid communication with one subchamber,'} wherein the mixing chamber is in fluid communication with the plurality of pumps,', 'wherein the plurality of pumps are configured to independently pump fluid from the corresponding subchamber;, 'a mixing chamber having an interior volume, a filament input, a filament output, and a waste outlet,'}a material dispenser configured to dispense uncolored filament to the filament input;a waste management system in fluid communication with the waste outlet; anda print head having an extruder configured to receive the completely colored filament through the filament output and to dispense the completely colored filament.2. The extrusion-based 3D printer of claim 1 , wherein the plurality of subchambers are disposable.3. The extrusion-based 3D printer of claim 1 , wherein the plurality of subchambers are refillable.4. The extrusion-based 3D printer of claim 3 , wherein at least one of the subchambers contains a dye within the interior chamber.5. The extrusion-based 3D printer of claim 4 , ...

Kneading apparatus

A kneading apparatus having a kneading unit made up of a plurality of segment parts detachably mounted on a shaft disposed in the barrel includes a first segment part having a first length L1 related to an outer diameter D, a second segment part having a second length L2 shorter than the first length L1, and a third segment part having a third length L3 longer than the first length L1; the first length L1 is [the outer diameter D×a coefficient a]; the second length L2 is [the first length L1/a coefficient b]; the third length L3 is [the first length L1×the coefficient b]; the third length L3 is [L1+L2]; and the kneading unit has a segment pattern made up of a plurality of segment parts and mounted on the shaft interchangeably with another segment pattern.

Energy Transfer Screw and Improved Extrusion Process

Lower discharge temperatures and improved flow rates are obtained for the processing of meltable, solid crosslinkable compositions comprising a polymer, e.g., polyethylene, and a peroxide, in a single barrel extruder by equipping the extruder with an energy transfer (ET) screw that comprises: (1) an ET section with a distance averaged ET section depth of 8.0% to 10% of the extruder barrel internal diameter, and (2) a metering section with a metering section depth of 6.0% to 8% of the extruder barrel internal diameter. 1. An energy transfer (ET) screw for a single screw extruder , the extruder comprising an extruder barrel with an inside diameter , the screw comprising:(1) an ET section with a distance averaged ET section depth of 8.0% to −10% of the extruder barrel internal diameter, and(2) a metering section with a metering section depth of 6.0% to 8% of the extruder barrel internal diameter.2. The ET screw of further comprising a plurality of barrier clearances that are the same throughout the length of the energy transfer section.3. The ET screw of further comprising a plurality of barrier clearances that reduce throughout the length of the energy transfer section.4. A process of melting and extruding a crosslinkable composition in a single screw extruder claim 1 , the extruder comprising an energy transfer (ET) screw and a barrel with an inside diameter claim 1 , the screw rotatably mounted within the barrel claim 1 , the process comprising the steps of:(A) feeding a meltable, solid crosslinkable composition to the extruder;(B) rotating the screw within the extruder barrel; and (1) an ET section with a distance averaged ET section depth of 8.0% to 10% of the extruder barrel internal diameter, and', '(2) a metering section with a metering section depth of 6.0% to 8% of the extruder barrel internal diameter., '(C) melting the solid crosslinkable composition within the extruder and moving the composition through the extruder by the rotation of the screw; the screw ...

APPARATUS AND METHOD FOR FILTRATION OF POLYMER MELT

A device () for filtering plastic melt having an inlet valve (), an outlet valve () and a filter canister (), wherein a cavity () closable by means of a cover () is formed and into which a melt channel () opens. In the filter canister () there is arranged a plurality of filter cartridges (), which are each formed by a filter substrate () and a filter lattice (). The filter substrate () comprises a wall having openings, said wall defining an internal space (), which opens through an outlet () into a collection channel (). The filter lattice () covers the openings of the filter substrate (). The melt channel () is adjacent to the inlet valve () and may be brought into fluid communication with an outlet channel () via the inlet valve (). The collection channel () is adjacent to the outlet valve () and may be brought into fluid communication with an outlet channel () via the outlet valve (). The cover () fixes the filter lattices () onto the filter substrates (). 1. A device for filtering plastic melt comprising:an inlet valve, an outlet valve and a filter canister, wherein a cavity closable by means of a removable cover is formed, into which a melt channel opens, wherein in the filter canister there is arranged a plurality of filter cartridges, which are each formed by a filter substrate and a filter lattice, wherein the filter substrate is anchored to the filter canister and comprises a wall having a plurality of openings, said wall defining an internal space, which opens through an outlet into a collection channel, wherein the filter lattice covers the openings of the filter substrate, wherein the melt channel is adjacent to the inlet valve and may be brought into fluid communication with an outlet channel via the inlet valve and wherein the collection channel is adjacent to the outlet valve and may be brought into fluid communication with an outlet channel via the outlet valve, and wherein the cover fixes the filter lattices onto the filter substrates, characterized ...

Methods And Installations For Producing A Biaxially Oriented Tube From Thermoplastic Material

A method for producing a biaxially oriented tube from thermoplastic material, wherein a tube in preform condition is extruded from thermoplastic material and is subjected to a temperature conditioning. Use is made of an expansion device and of a drawing device which is arranged downstream of the expansion device. The expansion device includes a non-deformable expansion part and a run-on part located upstream of the expansion part and having an upstream sealing member. The expansion device further includes a first gas discharge duct having one or more first inlet ports in the exterior surface of the expansion device, a first inlet port being open or closed or partly closed dependent on whether or not the first inlet port is covered and closed, or partly closed, by the tube. 1. A method for producing a biaxially oriented tube from thermoplastic material comprising:drawing a tempered tube in preform condition over an expansion device using a drawing device to transform the tube from a tube in a preform condition into a biaxially oriented tube with thermoplastic material that is oriented in an axial direction and in a circumferential direction of the tube; andcooling the biaxially oriented tube;wherein the tube in preform condition is extruded from thermoplastic material using an extruder which is provided with an extruder die head having an inner die member, the inner die member forming a lumen in the tube in preform condition, wherein the tube in preform condition is subjected to a temperature conditioning, so that a tempered tube in preform condition is obtained having an orientation temperature which is suitable for the thermoplastic material;wherein the drawing device is arranged downstream of the expansion device; a non-deformable expansion part having a gradually increasing diameter to a maximum diameter at a downstream end thereof; and', 'a run-on part which is located upstream of the expansion part, the run-on part having an upstream sealing member arranged ...

METHODS FOR MANUFACTURING BULKED CONTINUOUS CARPET FILAMENT

A method of manufacturing bulked continuous carpet filament from recycled polymer. In various embodiments, the method includes: () reducing recycled polymer material into polymer flakes; () cleansing the polymer flakes; () melting the flakes into a polymer melt; () removing water and contaminants from the polymer melt by dividing the polymer melt into a plurality of polymer streams and exposing those streams to pressures below 25 millibars or another predetermined pressure; () recombining the streams; and () using the resulting purified polymer to produce bulked continuous carpet filament. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:providing a polymer melt to a chamber;separating the polymer melt into at least eight streams such that each of the at least eight streams is at least partially exposed to an interior of the chamber and such that a surface area of each of the at least eight streams is exposed to a chamber pressure within the chamber, the chamber pressure being between about 0.5 millibars and about 12 millibars;after the at least eight streams are exposed to the chamber pressure, recombining the at least eight streams into a single polymer stream; andforming polymer from the single polymer stream into bulked continuous carpet filament.2. The method of claim 1 , further comprising:passing a plurality of recycled polymer flakes through a crystallizer to at least partially dry the plurality of recycled polymer flakes; andafter passing the plurality of recycled polymer flakes through the crystallizer, at least partially melting the plurality of recycled polymer flakes to form the polymer melt.3. The method of claim 2 , wherein recombining the at least eight streams into the single polymer stream comprises recombining the at least eight streams via a single screw extruder.4. The method of claim 2 , wherein separating the polymer melt into the at least eight streams comprises extruding the polymer melt through a ...

Method for Producing Thermally Crosslinkable Polymers in a Planetary Roller Extruder

A method for producing thermally crosslinkable polymers in a planetary roller extruder is presented. The planetary roller extruder has a filling part and a compounding part made of a roller cylinder region that comprises at least two, preferably at least three coupled roller cylinders, planetary spindles of which are driven by a common central spindle. The polymers are supplied in a plasticized state. The filling part is supplied with a vacuum. The flow temperatures of the central spindle and the at least two roller cylinders under a vacuum are set such that the polymers to be degassed remain in the plasticized state. One or more liquids, such as thermal crosslinkers, crosslinking accelerators, dye solutions, or dye dispersions, are metered to the plasticized polymers downstream of the vacuum degassing, preferably in a continuous manner. Finally, the resulting mixture is directly supplied to a coating assembly. 113-. (canceled)14. A method for producing thermally cross-linkable polymers in a planetary roller extruder , wherein: a feed part and', 'a compounding part, the compounding part being formed by a cylinder assembly area which comprises at least two coupled cylinder assemblies, planetary spindles of which are driven by a single common central spindle,, 'a) the planetary roller extruder has'}b) the polymers are supplied into the planetary roller extruder in a plasticized state,c) the plasticized polymers are fed into a first cylinder assembly of the at least two coupled cylinder assemblies, within a first half of the first cylinder assembly,d) the feed part of the planetary roller extruder is charged with vacuum, 'in case the cylinder assembly area is formed by more than two cylinder assemblies, a shell of the second cylinder assembly of the more than two cylinder assemblies or a shell of a downstream cylinder assembly has an opening via which air and possibly other volatile components are degassed from the plasticized polymers by a vacuum,', 'e) in case the ...

Extruded variegated plastic profile and method

An apparatus and method for forming as extruded variegated plastic profile, including a multi-manifold slotted feed block assembly having a primary input manifold assembly, a secondary input manifold assembly, a flow distribution assembly in fluid communication with the primary input manifold assembly and the secondary input manifold assembly, a zone assembly having at least one restrictor and at least one mixer, and optionally, an extra line manifold assembly in communication with the flow distribution assembly.

Extruder having a vacuum feeder

An extruder includes a machine base, a cylinder connected with one end thereof to the machine base and defining a feeding section adjacent to the machine base, a feed port at the feeding section and a discharge port at an opposite end, a screw pivotally connected with one end thereof to the machine base and accommodated in the cylinder and rotatable in the cylinder by an external force, a feed tank having a top through hole and a bottom through hole and connected to the feed port of the cylinder, a control valve mounted in the top through hole and operable to open or close the feed tank, and a vacuum pump connected to the feeding section of the cylinder through a piping and operable to pump air out of the feeding section and to further leave a vacuum in the feeding section.

Nozzle for extruding a preform tube

An extrusion nozzle for making tubular preforms has a mandrel extending along a vertical axis, an annular and stationary nozzle body spacedly radially surrounding the mandrel, and a holding ring having an upper end axially slidable in the nozzle body, braced axially downwardly against the nozzle body, and having a lower end spaced radially inward from shiftable limitedly radially relative to the nozzle body. A nozzle ring has an upper end axially slidable in the holding ring, is braced axially downwardly against the nozzle body, and has a radially deflectable lower end forming an annular extrusion gap with the mandrel. A first positioner engages the lower end of nozzle ring and is operable to radially deflect this lower end. A second positioner engages radially with the lower end of the holding ring or with the nozzle ring for radially deflecting same.

Enhancing die flatness

Methods and apparatus for enhancing the flatness of a die by applying adhesive to a shim having a selected flatness, rotating the shim to spread the adhesive to a layer having a uniform thickness, evacuating a chamber to create a vacuum; manipulating a die onto the adhesive layer in the chamber; and reducing a level of the vacuum to pressure the die onto the adhesive layer such that the bow in the die is reduced as the die conforms to the shim.

Systems and methods for manufacturing bulked continuous filament

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an expanded surface area extruder while maintaining a pressure within the expanded surface area extruder below about 25 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

Additive Manufacturing System Having Adjustable Energy Shroud

A system is disclosed for use in additively manufacturing a composite structure. The system may include a head configured to discharge a composite material including a matrix and a plurality of continuous reinforcements. The system may also include a cure enhancer configured to direct energy to the composite material to enhance curing of the matrix, and a shroud adjustably mounted to the head and configured to selectively block at least some of the energy from reaching the matrix.

Seal device for a negative pressure calibrating unit in an extrusion line

The present invention relates to a seal device for a negative pressure calibrating unit in a extrusion line for producing profiled plastic sections, in particular pipes whereby the inner face of a seal rests against the circumference of the extruded profiled section in a formfitting manner and the seal is radially supported on the profiled section in order to apply a sealing force. It is the object of the invention to provide another similar device which is very easily constructed and can be produced inexpensively. This task is solved in that the seal is a porous and elastic foam body (13), the surfaces (17, 19) of that are exposed to the atmosphere are coated with an air-tight coating (21).

Flow controlled strand die

An extrusion die is used for the simultaneous extrusion of multiple strands of extrusion material at the same flow rate. The extrusion die includes a mounting flange having an inlet cavity with an inlet orifice at one end for receiving extrusion material from an extruder. The extrusion die also includes a valve body including at least one adjustment hole, and a channel body arranged between the mounting flange and the valve body. The channel body defines at least one channel extending therethrough to provide fluid communication for the extrusion material between the inlet cavity and at least one outlet passageway provided in the valve body and respectively corresponding to the at least one adjustment hole. Additionally, a flow control gate is received in each adjustment hole to externally control the flow velocity of the extrusion material through the outlet passageway before it exits the die. Additionally, the flow control gate allows a user to adjust flow rate variations caused by temperature changes across the die.

METHOD OF FORMING AN ELASTOMERIC STRIP

A method for applying a strip of elastomeric material to a surface is described. The method of forming a strip of elastomeric material includes the steps of: pumping an elastomeric material through a nozzle, positioning an opening of a nozzle in mating engagement with a rotatable roller, rotating the roller so that rotation of the roller pulls the elastomer material through the outlet of the nozzle, forming a strip. 1. A method of forming a strip of elastomer material comprising the steps of: pumping an elastomer material through a nozzle , wherein said nozzle has an internal passageway having a decreasing cross-sectional area , positioning an opening of the nozzle in mating engagement with a rotatable roller , wherein the opening of the nozzle has a length and a width , wherein the length is greater than 1.5 times the axial width , rotating the roller so that rotation of the roller pulls the elastomer material through an outlet of the nozzle , and forming the strip of elastomer material , wherein the outlet of the nozzle is formed between the roller outer surface and an edge of the nozzle.2. The method of wherein the elastomer material is in a molten state.3. The method of further comprising the steps of pumping the molten elastomer material through a die positioned at the outlet and then forming the elastomer strip onto an outer surface of the rotating roller claim 1 , wherein the die forms the desired cross-sectional shape of the strip of elastomer material.4. The method of further comprising the steps of pressing the rotatable roller against a tire building drum so that the strip of elastomer material adheres to the surface of the tire building drum.5. The method of wherein said nozzle compresses said strip of elastomer material directly onto an outer surface of the roller.6. The method of wherein the nozzle has a shaped die surface that cooperates with the outer surface of the rotatable roller to form the outlet of the nozzle.7. The method of wherein the ...

QUINONE AND HYDROQUINONE BASED FLOW BATTERY

The invention provides an electro-chemical cell based on a new chemistry for a flow battery for large scale, e.g., gridscale, electrical energy storage. Electrical energy is stored chemically in quinone molecules having multiple oxidation states, e.g., three or more. During charging of the battery, the quinone molecules at one electrode are oxidized by emitting electrons and protons, and the quinone molecules at the other electrode are reduced by accepting electrons and protons. These reactions are reversed to deliver electrical energy. The invention also provides additional high and low potential quinones that are useful in rechargeable batteries. 1. A rechargeable battery comprising first and second electrodes , wherein in its charged state , the battery comprises an oxidized form of a quinone having three or more oxidation states dissolved or suspended in aqueous solution in contact with the first electrode and a reduced form of the quinone having three or more oxidation states dissolved or suspended in aqueous solution in contact with the second electrode , wherein during discharge the oxidized form of the quinone is reduced at the first electrode and the reduced form of the quinone is oxidized at the second electrode.2. The rechargeable battery of claim 1 , wherein the quinone is a water-soluble anthraquinone.3. The rechargeable battery of or claim 1 , wherein the first and second electrodes are separated by an ion conducting barrier.4. The rechargeable battery of claim 3 , wherein the barrier is a porous physical barrier or a size exclusion barrier.7. The rechargeable battery of any of - claim 3 , further comprising reservoirs for the oxidized and reduced forms of the quinone dissolved or suspended in aqueous solution and a mechanism to circulate the solutions.10. The rechargeable battery of or claim 3 , wherein the first and second electrodes are separated by an ion conducting barrier.11. The rechargeable battery of claim 10 , wherein the barrier is a porous ...

Extruder Feed System

Extruder feed system. The system includes a pair of spaced-apart, internally and oppositely threaded rotatable elements for receiving and engaging a plastic filament material. An electric motor rotates the rotatable elements in opposite directions thereby to drive the filament into a liquefier chamber for subsequent discharge through a nozzle. The system provides very accurate layer-by-layer build up.

Sizer for an extrusion machine with improved cooling and vacuum channels

A sizer for cooling an extrudate includes a core and a housing. The core includes an extrusion channel which accommodates the extrudate, a core cooling channel, and a core vacuum channel in fluid communication with said extrusion channel. The housing includes a housing cooling channel, a housing vacuum channel, a cooling intake, and a cooling exhaust. The housing cooling and vacuum channels having curved segments. The cooling intake and exhaust being in fluid communication with said housing cooling channel.

Multi-layer impact resistant bumper

An impact resistant bumper device that is elongated along a longitudinal axis and mountable on a mounting member, the device having a cross-section having an open undersurface configuration comprising: a first layer of a first polymer material; a second layer of a second polymer material; a third layer of a third polymer material; wherein the first polymer material has been melted at least once prior to the extrusion cycle, the second polymer material is first melted during the extrusion cycle and the third polymer material is first melted during the extrusion cycle.

IMPRESSION ELEMENT FOR THE CREATION OF A SURGICAL GUIDE

According to an aspect of the invention there is provided a mouldable material carrier for use in producing an impression of a surgical site comprising: a base having a channel passing through the base between an inlet and an outlet; and a securing portion configured to secure a flexible sheet to the base around the outlet to cover the outlet such that, when mouldable material is urged through the inlet, the mouldable material is extruded out of the outlet and contained within a volume defined by the flexible sheet and the base, such that when the mouldable material carrier is urged against a surgical site, the mouldable material within the volume forms an impression of the surgical site without making contact with the surgical site.

DISTRIBUTION BLOCK

The invention relates to a distribution block for extrusion melt and a method for coextruding films with the aid of a distribution block for extrusion melt, wherein the distribution block comprises a movable sleeve.

Methods for manufacturing bulked continuous filament

A method for manufacturing bulked continuous carpet filament, the method comprising: (1) reducing a chamber pressure within a chamber to below about 5 millibars; (2) after reducing the chamber pressure to below about 5 millibars, providing a polymer melt to the chamber; (3) separating the polymer melt into at least eight streams; (4) while the at least eight streams of the polymer melt are within the chamber, exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars; (5) after exposing the at least eight streams of the polymer melt to the chamber pressure of below about 5 millibars, recombining the at least eight streams into a single polymer stream; and (6) forming polymer from the single polymer stream into bulked continuous carpet filament.

Environmentally friendly dry cleaning bags and methods of making same

A method of manufacturing a biodegradable dry cleaning bag is disclosed, the method including loading an environmentally friendly slurry into a hopper, extruding the environmentally friendly slurry, passing the environmentally friendly slurry through a die, inflating the environmentally friendly slurry into a cylindrical shape, thereby creating a cylindrical member, passing the cylindrical member over a first roller, and rolling the cylindrical member onto a roll.

METHOD OF MANUFACTURING A SILICONE MEDICAL BALLOON

A method of forming a balloon for a medical device is provided including extruding a cylindrical tube of silicone material, partially curing the cylindrical tube, inflating the cylindrical tube, and fully curing the balloon. The cylindrical tube is partially cured by exposing the cylindrical tube to a first ultraviolet light source. The cylindrical tube is inflated within a mold to form the balloon. The balloon is fully cured by exposing the balloon to a second ultraviolet light source. 1. A method of forming a balloon for a medical device , comprising:extruding a cylindrical tube of silicone material;partially curing the cylindrical tube by exposing the cylindrical tube to a first ultraviolet light source;inflating the cylindrical tube within a mold to form the balloon; andfully curing the balloon by exposing the balloon to a second ultraviolet light source.2. The method of claim 1 , further comprising:cutting a length of the cylindrical tube; andinserting the length of the cylindrical tube into the mold.3. The method of claim 1 , wherein the first ultraviolet light source has a wavelength which is greater than a wavelength of the second ultraviolet light source.4. The method of claim 3 , wherein the wavelength of the second ultraviolet light source is at least 200 nm.5. The method of claim 3 , wherein the wavelength of the first ultraviolet light source is no more than 520 nm.6. The method of claim 1 , further comprising claim 1 , coupling the balloon to a catheter by melting a first end and a second end of the balloon to an outer surface of a catheter.7. The method of claim 6 , further comprising folding the balloon against the outer surface of the catheter.8. The method of claim 1 , wherein partially curing the cylindrical tube comprises exposing the cylindrical tube to the first ultraviolet light source for no more than 60 seconds.9. The method of claim 1 , wherein fully curing the cylindrical tube comprises exposing the cylindrical tube to the second ...

DEVICE AND METHOD FOR CONTINUOUSLY EXTRUDING TUBING HAVING DIFFERENT MATERIALS

A method of co-extruding material. The method includes controlling the flow of a first extruded material to an infeed of a die by a first plunger positioned in a first material delivery channel; moving the first plunger between a first plunger first position and a first plunger second position, the first plunger creating a vacuum or area of low pressure as the first plunger is moved from the first plunger first position to the first plunger second position; controlling the flow of a second extruded material to the infeed of the die by a second plunger positioned in a second material delivery channel; moving the second plunger between a second plunger first position and a second plunger second position, the second plunger creating a vacuum or area of low pressure as the second plunger is moved from the second plunger first position to the second plunger second position. 1. A method of co-extruding material , the method comprising:providing first extruded material through a first material delivery channel to a die;providing second extruded material through a second material delivery channel to a die;controlling the flow of the first extruded material through the first material delivery channel by a first plunger positioned in the first material delivery channel; andcontrolling the flow of the second extruded material through the second material delivery channel by a second plunger positioned in the second material delivery channel.2. The method of claim 1 , further comprising:moving the first plunger from a first plunger first position in which to the first plunger is extended in the first material delivery channel toward the die, and a first plunger second position in which the first plunger is retracted in the first material delivery channel away from the die;wherein as the first plunger is moved to the extended position, the first extruded material is forced from the portion of the first material delivery channel to the die, and wherein as the first plunger is ...

Method for Manufacturing a Polymer Article

A method enabling the selection, modification and/or creation of polymer materials which can provide improved response to the application of local shear and/or extensional deformation inside the polymer melt in manufacturing technologies including injection molding, injection stretch blow molding, direct injection, extrusion blow molding, sheet extrusion, thermoforming, etc., is provided. A method for manufacturing a polymer article includes injecting or extruding molten polypropylene, polyethylene or polyester based polymer for converting it into semi-final shape while applying shear and/or extensional deformation on the polymer melt. Applying shear and/or extensional deformation on the polymer melt includes selectively modifying the flow path of the molten semi-crystallizable polymer as a function of local pressure profile over at least part of the flow path. Local pressure profile is a function of optimized response of the polymer melt to the applied local shear and/or extensional deformation over at least the part of the flow path.

CHARGING SYSTEM AND METHOD FOR FEEDING PROCESSING MATERIAL TO AN EXTRUDER SCREW

A charging system for feeding processing material to at least one extruder screw including a hopper configured to conduct the processing material along a feed direction to the extruder screw, and a material reservoir for the gravity-driven feeding of the processing material to the hopper. The charging system also includes a feeding device via which processing material recirculated at the hopper against the feed direction by action of the extruder screw can again be conveyed in the direction of the extruder screw together with processing material fed from the material reservoir. 1. A charging system for feeding processing material to at least one extruder screw , comprising:a hopper configured to conduct the processing material along a feed direction to the extruder screw;a material reservoir for gravity-driven feeding of the processing material to the hopper, anda feeding device via which a portion of the processing material is recirculated at the hopper against the feed direction by action of the extruder screw so that the portion of the processing material is again conveyed in the direction of the extruder screw together with a fresh portion of the processing material fed from the material reservoir.2. The charging system according to claim 1 , wherein the feeding device is configured to blend the portion and the fresh portion by rotation of the extruder screw.3. The charging system according to claim 1 , wherein the processing material is granular claim 1 , and the extruder screw is vertically oriented claim 1 , and wherein the charging system is configured to feed the granular processing material to the vertically extended extruder screw.4. The charging system according to claim 3 , wherein the hopper includes a comminution tool configured to comminute the granular processing material entering the hopper as the extruder screw rotates.5. The charging system according to claim 4 , wherein the hopper includes a filling zone claim 4 , and the comminution tool has at ...

Die with a modular adjustment system and a modular adjustment system

An adjustment system coupled to a die, and a die including an adjustment system, includes first and second adjustment modules. The first adjustment module includes a first body, a first plurality of studs, and a first actuator. Each of the first plurality of studs is slidably positioned within the first body. The first actuator is coupled to the first plurality of studs and is configured to move each of the first plurality of studs. The second adjustment module includes a second body, a second plurality of studs, and a second actuator. Each of the second plurality of studs is slidably positioned within the second body. The second actuator is coupled to the second plurality of studs and is configured to move each of the second plurality of studs. The number of studs composing the first plurality of studs is different from a number of studs composing the second plurality of studs.

Screw to be used in an extruder and extruder

A screw used in an extruder and an extruder having such a screw, in particular a screw used in a multiple-screw extruder and a multiple-screw extruder uses an additional connecting element directly leading from one segment to the next in order to relieve the mandrel. The screw includes a mandrel and a plurality of segments borne by the mandrel and arranged axially with respect to one another, a segment border between a first segment and an axially adjacent second segment has a separate cylindrical connecting element adapted to transmit a torque over the segment border. The ratio of a length of the connecting element to the diameter of the connecting element is higher than 11.

Extruder

An extruder ( 1 ) comprising a feed port ( 10 ), the feed port is configured to direct material towards a barrel region of an extruder, the feed port comprising a passageway, the passageway arranged to he in communication with the barrel region ( 11 ) of the extruder, and the passageway comprises a transverse cross-sectional shape which comprises three substantially rectilinear side surfaces ( 4 a, 4 b, 4 c ) which are arranged substantially orthogonally, and a fourth side ( 4 d ) which is non-orthogonally angled relative to two of the side surfaces which are adjacent to the fourth side.

Nozzle for sheet or film extrusion

A die and a method for producing a structural part from hardenable material by way of a die. The die includes a die bottom part; a die top part; a die control unit; a flexible element extending along a lower edge of the die top part; and at least one adjusting bolt to adjust at least partially, via the die control unit, a spatial distance between the flexible element and the die bottom part during extrusion.

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing polymer products , the method comprising:(A) providing a multi-rotating screw (MRS) extruder comprising an MRS section;(B) providing a vacuum pump in communication with the MRS section that is adapted to maintain a pressure within the MRS section below a pressure of about 5 millibars, the vacuum pump comprising a controller that operates the vacuum pump to maintain the pressure within the MRS section below the pressure of about 5 millibars;(C) using the controller to operate the vacuum pump to reduce the pressure within the MRS section below the pressure of about 5 millibars;(D) while the controller is operating the vacuum pump to reduce the pressure within the MRS section below the pressure of about 5 millibars, passing a melt comprising recycled polymer through the MRS section; and(E) forming the recycled polymer into polymer products.2. The method of claim 1 , wherein the MRS section comprises:a plurality of satellite screws, each of the plurality of satellite screws being mounted to rotate about its respective central axis; anda satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being ...

EXTRUDABLE POLYMER COMPOSITES WITH MEMBRANE BARRIER PROPERTIES

The present disclosure generally relates to extrusion die systems. In particular, the present disclosure relates to the cyclical extrusion of materials to generate small sized grain features, generally in the range of nanosized grain features, in a tubular or profile shape, in which the individual nanolayers possess pores and/or polymer crystals oriented parallel to the extrusion flow direction and including products with enhanced permeation properties. 114-. (canceled)15. A transport device comprising an extruded product with 2-10 ,000 micro or nano-polymer layers in tubular or profile shapes , wherein the extruded polymer or a component of the polymer comprise lamellar crystals aligned along the axis of extrusion.16. The transport device according to claim 15 , where the transport device transports water.17. The transport device according to claim 15 , wherein the transport device transports alcohol.18. The transport device according to claim 15 , wherein the transport device transports hydrocarbons.19. The transport device according to claim 15 , wherein the transport device transports blood.20. The transport device according to claim 15 , wherein the extruded product includes PET.21. The transport device according to claim 15 , wherein the extruded product includes EVOH.22. The transport device according to claim 15 , wherein the extruded product includes PA.23. The transport device according to claim 15 , wherein the extruded product includes PEO. This application is a continuation application of U.S. patent application Ser. No. 14/244,843, titled “EXTRUDABLE POLYMER COMPOSITES WITH MEMBRANE BARRIER PROPERTIES” and filed on 3 Apr. 2014, which claims benefit to U.S. provisional application 61/807,888 entitled “EXTRUDABLE POLYMER COMPOSITES WITH MEMBRANE BARRIER PROPERTIES” and filed on 3 Apr. 2013, the disclosure of which is incorporated herein by reference in its entirety.The present disclosure generally relates to extrusion die systems. In particular, the ...

Extruder screw, extruder, and method for producing an extruder screw

An extruder screw includes an extruder shaft and at least one extruder segment The extruder shaft has a prismatic mandrel having external teeth and a longitudinal mandrel axis. The extruder segment has internal teeth and a longitudinal internal-teeth axis and can be slid onto the mandrel, such that the extruder segment can be connected to the mandrel for rotation therewith. The internal teeth have a profile having a meshing profile and, in an inner area between the first and second end faces of the extruder segment, include a prismatic main profile that has a main cross-section. Furthermore, the internal teeth of the extruder segment have an edge profile adjacent to at least one end face of the extruder segment, which edge profile has a smaller edge cross-section than the main profile at least in the area of the meshing profile.

Die mounted contact applicator

A slot die assembly for applying at least one material onto a substrate includes an adapter having a passive heat transfer device, a shim package fluidically connected to the adapter, the shim package having a first material discharge slot and a second material discharge slot, and a die plate having a one or more fluid channels fluidically connected to the shim package. The assembly also includes one or more mounting studs extending from the adapter, the mounting studs configured to engage a parent machine.

EXTRUDER WITH FEED BLOCK FOR PROMOTING INCREASED MASS TRANSPORT RATE

A molding apparatus comprises a first extruder and a second extruder and conduit fluidically connecting the extruders with a common mold wherein the at least one conduit has a conduit axis. The longitudinal axis of the first and second extruders extend at an angle of about 90° to a direction of flow in the conduit. 1. A molding apparatus comprising:(a) a plurality of extruders comprising at least a first extruder and a second extruder, wherein each extruder of the plurality of extruders is fluidly connectable with a common mold whereby the mold is concurrently fillable from each extruder of the plurality of extruders, each extruder of the plurality of extruders has a longitudinal axis, a feed inlet, an output end, and an extrusion barrel having a length extending between the feed inlet and the output end, wherein the extrusion barrel of each extruder of the plurality of extruders is fluidically isolated along its length from the extrusion barrel of other extruders of the plurality of extruders; and,(b) at least one conduit fluidically connecting the plurality of extruders with the common mold wherein the at least one conduit has a conduit axis,wherein the longitudinal axis of at least the first extruder extends at an angle of about 90° to a direction of flow in the at least one conduit.2. The molding apparatus of wherein the longitudinal axis of the second extruder also extends at an angle of about 90° to the direction of flow in the at least one conduit.3. The molding apparatus of wherein the first and second extruders are positioned side by side.4. The molding apparatus of wherein the longitudinal axes of the first and second extruders are parallel.5. The molding apparatus of wherein the first and second extruders are positioned side by side.6. The molding apparatus of wherein a common hopper is provided for the first and second extruders.7. The molding apparatus of wherein the first extruder is opposed to and faces the second extruder.8. The molding apparatus of ...

SIZER FOR AN EXTRUSION MACHINE WITH IMPROVED COOLING AND VACUUM CHANNELS

A sizer for cooling an extrudate, which includes a core and a housing. The core includes an extrusion channel which accommodates the extrudate, a core cooling channel, and a core vacuum channel in fluid communication with the extrusion channel. The housing includes a housing cooling channel and a housing vacuum channel. The core cooling channel is in fluid communication with the housing cooling channel, and the core vacuum channel is in fluid communication with the housing vacuum channel. 1. A sizer for cooling an extrudate , comprising: an extrusion channel configured to accommodate the extrudate;', 'a core cooling channel; and', 'a core vacuum channel in fluid communication with the extrusion channel;', 'wherein the core is comprised of a metal; and, 'a core comprising a housing cooling channel in fluid communication with the core cooling channel; and', 'a housing vacuum channel in fluid communication with the core vacuum channel;', 'wherein the housing is comprised of a polymer;, 'a housing for housing the core, comprisingwherein the housing cooling channel and the core cooling channel form a cooling pathway adapted to circulate a coolant through the sizer; andwherein the housing vacuum channel and the core vacuum channel form a vacuum pathway adapted to transmit suction forces to the extrudate.2. The sizer of wherein:the housing cooling channel has a first end portion adapted to facilitate reception of the coolant and a second end portion adapted to facilitate exhaustion of the coolant; andthe housing vacuum channel has a first end portion adapted to facilitate intake of the suction forces.3. The sizer of further comprising:a cooling intake located at the first end portion of the housing cooling channel and adapted to receive the coolant;a cooling exhaust located at the second end portion of the housing cooling channel and adapted to exhaust the coolant; anda vacuum intake located at the first end portion of the housing vacuum channel and adapted to intake the ...

Multi-lane die

A multi-lane die is provided. The multi-lane slot die comprises an upper body member, a lower body member, an upper shim, a separator shim, and a lower shim. The upper shim is positioned between the upper body member and the separator shim. The upper shim, the upper body member, and the separator shim define a first at least one dispensing channel that extends to a first at least one dispense opening of the multi-lane die. The lower shim is positioned between the separator shim and the lower body member. The lower shim, the separator shim, and the lower body member define a second at least one dispensing channel that extends to a second at least one dispense opening of the multi-lane die.

Extrusion device

In an embodiment, the present invention provides an extrusion device for producing a profile from plasticizable material, including at least one extruder head, in which the plasticized material can be supplied to a gap which is delimited by at least one roller and at least one bar that bears against a bearing surface in a predefined position via a fixing element in an operating position of the extrusion device. The fixing element includes a flat pressure-transmitting element which, in the operating position, can be placed against a pressure surface of the bar that is opposite the bearing surface, the pressure-transmitting element including a double-armed lever, which is pivotable about at least one axis, in order to compensate for a possible deviation from the predefined parallel orientation of the pressure-transmitting element with respect to the pressure surface of the bar.

METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT FROM RECYCLED PET

A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 25 millibars, or another predetermined pressure. The streams are recombined into a single polymer stream. Polymer from the polymer stream is then formed into bulked continuous carpet filament. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:providing a polymer melt;increasing a surface area of the polymer melt by dividing the polymer melt into at least eight streams;passing the at least eight streams of polymer melt into an interior of a chamber such that a respective surface area of each of the at least eight streams is exposed to a chamber pressure within the chamber of between about 0.5 millibars and about 12 millibars;recombining the at least eight streams into a single polymer stream; and 'the chamber pressure corresponds to a desired moisture level or a desired intrinsic viscosity associated with a single polymer stream comprising the at least eight streams of the polymer melt.', 'forming the single polymer stream into bulked continuous carpet filament, wherein2. The method of claim 1 , wherein the method comprises maintaining the chamber pressure within a pressure range of between about 0.5 millibars and about 12 millibars while the at least eight streams of polymer melt pass from an inlet of the chamber to an outlet of the chamber.3. The method of claim 1 , wherein the chamber pressure is a pressure between about 0.5 millibars and about 5 millibars.4. The method of claim 1 , wherein the chamber pressure corresponds to the desired moisture level associated with the single polymer stream.5. The method of claim 1 , wherein the chamber pressure corresponds to the desired intrinsic viscosity associated with the single polymer stream.6. The method of ...

FILTER SYSTEM FOR VISCOUS OR HIGHLY VISCOUS LIQUIDS, IN PARTICULAR PLASTIC MELTS AND METHOD FOR FILTERING VISCOUS OR HIGHLY VISCOUS LIQUIDS

A device and a method for filtering viscous or highly viscous liquids, in particular plastics melts, includes use of an oscillating filter plate. 1. A filter system comprising:a filter chamber which defines an active filter area in a filter zone;at least one cleaning chamber connected to the filter chamber;a filter plate arranged in the filter chamber, the filter plate being at least twice as wide as the active filter area; anda filter support plate arranged in the filter chamber, the filter plate being supported by the filter support plate,wherein the filter plate is movable to the at least one cleaning chamber to clean the filter plate,wherein either (i) the filter plate is guided on the filter support plate, by sliding elements in grooves, in an oscillating motion relative to the filter support plate to clean the filter plate, or (ii) the filter support plate is guided in the filter chamber by sliding elements such that the filter plate together with the filter support plate is guided in an oscillating motion to clean the filter plate.2. (canceled)3. The filter system according to claim 1 , wherein the at least one cleaning chamber is sealed relative to the filter chamber by one or more blocking elements.4. The filter system according to claim 1 , further comprising a cleaning apparatus in the form of a scraper unit.5. The filter system according to claim 1 , wherein the filter plate takes the form of a plate claim 1 , sheet or mat.6. The filter system according to claim 1 , wherein a conveying screw is provided in the at least one cleaning chamber for discharging a filter cake.7. A method for filtering viscous or highly viscous liquids claim 1 , comprising:supplying the viscous or highly viscous liquid to a filter chamber which defines an active filter area in a filter zone, the filter chamber having a filter plate supported by a filter support plate, the filter plate being at least twice as wide as the active filter area, wherein either (i) the filter plate is ...

Elimination of contaminants in wet natural rubber

A method for preparation of decontaminated natural rubber is provided. The method is characterized in that it comprises a decontamination step in which wet natural rubber coagulum passes through a system comprising an extruder and a filter installed at the extruder outlet, the extruder comprising an axially symmetrical grooved sheath comprising in its thickness grooves opening on the inner surface of the sheath.

System and method for on-demand colorization for extrusion-based additive construction

A color 3D printer and its method of use are disclosed. The color 3D printer uses a number of chambers to dye a filament to a given color. This colored filament is then extruded, pursuant to an associated 3D model of an object, to produce varying colored physical objects, on demand, with the use of a single filament and a single print head. Further, the color 3D printer features a waste management apparatus which provides a number of ways to dispose of waste fluid.

METHOD FOR OVERMOLDING AT LEAST ONE LINE

A method for overmolding at least one line () comprises the steps: 1. A method for overmolding at least one line , comprising the steps:receiving the at least one line in an opening of a sealing element, wherein the opening of the sealing element is substantially complementary in shape to a peripheral geometry of the at least one line;mounting the sealing element on a mold;overmolding the at least one line received in the sealing element in a region that is adjacent to the sealing element and delimited by the sealing element; andremoving from the mold the sealing element and the at least one line received therein and overmolded in a region.2. The method as claimed in claim 1 , wherein the sealing element ith the at least one line received therein is mounted on the mold.3. The method as claimed in claim 1 , which comprises the further step:removing the sealing element from the at least one line that has been overmolded in a region.4. The method as claimed in claim 3 , wherein the sealing element is broken in order to remove it from the at least one line that has been overmolded in a region.5. The method as claimed in claim 1 , wherein the sealing element is in plate form.6. The method as claimed in claim 1 , wherein the sealing element claim 1 , for mounting on the mold claim 1 , is introduced at least in part into a sealing element holder formed on the mold.7. The method as claimed in claim 1 , wherein the sealing element is a plastics component.8. The method as claimed in claim 1 , wherein the sealing element is produced by means of an additive manufacturing process.9. The method as claimed in claim 1 , wherein the sealing element is produced by means of an injection molding process.10. The method as claimed in claim 1 , wherein the mold comprises a metallic material for dissipating heat during overmolding.11. The method as claimed in claim 1 , wherein at least two lines are overmolded claim 1 , wherein the opening of the sealing element comprises at least one ...

FILTER DEVICE FOR A PLASTIC MELT OR ANOTHER HIGHLY VISCOUS FLUID

The invention relates to a filter device for a plastic melt or another highly viscous fluid, comprising a housing with an inlet plate and a discharge plate. At least one spacing element and a screen wheel which can be rotated by a drive device are arranged between the inlet plate and the discharge plate. The inlet plate and the discharge plate are clamped against each other with the inclusion of the spacing element via at least three housing clamping elements. An engagement point of the drive device on the screen wheel is arranged outside of the pretensioning surface. When viewed in the rotational direction, an angle α larger than 110° and smaller than 160° is formed on the screen wheel between a first line that extends between the pretensioning surface centroid on which a resulting frictional force Facts and the center of the screen wheel and a second line between the center and the engagement point on which an advancing force Facts. 1. A filter device for a plastic melt or another highly viscous fluid , comprising:a housing having at least:an inlet plate with at least one inlet channel,a discharge plate with at least one discharge channel;at least one spacer element arranged between the inlet plate and the discharge plate;at least three housing clamping elements, with which the inlet plate and the discharge plate are braced against one another, enclosing the spacer element;a screen wheel rotatably supported in the housing between the inlet plate and the discharge plate, the screen wheel having a large number of screen sections which can each be positioned and flowed through between the inlet channel and the discharge channel, the regions of the screen wheel which can be flowed through and to which fluid pressure can be applied lying within a pretensioned surface which is clamped by the housing clamping elements; and{'sub': 'V', 'a drive device having a drive element which exerts a feed force Fon the screen wheel at an engagement point;'}{'sub': R', 'V, 'wherein ...

Filtering device for highly viscous media

A filtering device for highly viscous media, in which filtering device a rotatably mounted screening wheel which has a plurality of screening cavities is arranged between a front housing element and a rear housing element. According to the invention, a plurality of screening cavities lying beside one another, through which flow can pass jointly, are combined into at least one filter group. To this end, on both sides beside the filter group, a closed blocking segment is provided on the screening wheel which segment, when positioned in associated blocking regions of the housing, is sealed off with respect to the housing elements on both sides of the screening wheel. The blocking regions in the housing are in each case larger than or as large as a screening cavity together with a sealing web surrounding the same.

Perforated plate for producing granules from thermoplastic material and for producing such a perforated plate

A perforated plate for producing granulate or microgranulate from a thermoplastic plastic material and a method of manufacturing a perforated plate for producing granulate or microgranulate from a thermoplastic plastic material, wherein the perforated plate comprises a plurality of nozzle bores. The lengths of the nozzle bores are respectively sized such that each nozzle bore of the plurality of nozzle bores allows a substantially uniform flow rate of a melt material.

Systems and methods for manufacturing bulked continuous filament

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

Cut extrudate dispersal hood

A product-spreading hood assembly ( 10 ) for use with a die unit ( 128 ) includes a deflector ( 14 ) having wall structure defining a product inlet opening ( 90 ) and a product outlet opening ( 92 ); the deflector ( 14 ) is preferably generally frustoconical in shape and is supported by a housing ( 12 ). An optional air delivery assembly ( 16 ) allows air currents to be directed from the area of the inlet ( 90 ) towards outlet ( 92 ) to facilitate separation of discrete products. Advantageously, the air currents are delivered in a circumferential fashion about the die unit ( 128 ). Use of the hood assembly ( 10 ) serves to separate high moisture or “sticky” extrudates, thereby preventing agglomeration thereof.

SEALING DEVICE WITH COOLING FUNCTION

A sealing device for sealing the intermediate space between a housing and a shaft rotatably mounted in the housing, having a first plate-shaped body with a front face, a rear face, and a first opening, which extends from the front face to the rear face and is suitable for feeding through the shaft, and having a cooling line, which runs in the body and is suitable for conducting a cooling medium. The first body is suitable for being tightly secured to the housing such that the shaft rotatably mounted in the housing is guided through the first opening. The first opening is suitable for introducing sealant such that the sealant seals an intermediate space between the shaft and the first body. The cooling line is guided around the first opening between a cooling line inlet and a cooling line outlet for the cooling medium such that heat produced from rotating the shaft can be dissipated by the cooling medium in a spatially homogenous manner. 1100200310. A sealing device () for sealing the intermediate space between a housing () and a shaft () rotatably mounted in the housing , having:{'b': 110', '120', '310, 'a first plate-shaped body () with a front face, a rear face and a first opening (), which extends from the front face to the rear face and is suitable for feeding through the shaft ();'}{'b': 170', '110', '110', '200', '310', '200', '120, 'a cooling line () which runs in the body () and is suitable for directing a cooling medium; wherein the first body () is suitable for being tightly secured to the housing () such that the shaft (), rotatably mounted in the housing (), is guided through the first opening ();'}{'b': 120', '140', '140', '310', '110, 'the first opening () is configured for introducing sealants () such that the sealants () seal an intermediate space between the shaft () and the first body (); and'}{'b': 170', '120', '172', '174', '310, 'the cooling line () is guided continuously around the first opening () between a cooling line inlet () and a cooling ...

METHOD AND APPARATUS FOR PRODUCING A HIGH ASPECT RATIO NANOSTRUCTURED FOIL BY EXTRUSION COATING OR EXTRUSION CASTING

Aspects of the disclosure relate to methods for making large areas of high aspect ratio micro or nanostructured foil using existing extrusion coating equipment. A method is disclosed for producing a high aspect ratio micro- or nanostructured thermoplastic polymer foil, or a nanostructured thermoplastic polymer coating on a carrier foil, comprising at least one high aspect ratio nanostructured surface area. The method comprises applying a high aspect ratio nanostructured surface on an extrusion coating roller and maintaining the temperature of the roller below the solidification temperature of the thermoplastic material. A thermoplastic foil and a thermoplastic coating made by the method is also disclosed. 1. A method for producing a high aspect ratio nano- or micro-structured thermoplastic foil comprising at least one high aspect ratio nano- or micro-structured surface area , comprising:providing an extrusion casting roller for an industrial polymer extrusion casting process using a thermoplastic material;applying a high aspect ratio nano- or micro-structured surface on said extrusion casting roller thereby forming a high aspect ratio nano- or micro-structured extrusion casting roller;maintaining a temperature of said high aspect ratio nano- or micro-structured extrusion casting roller below a solidification temperature of said thermoplastic material, wherein said high aspect ratio nano- or micro-structured extrusion casting roller is rotating; andcontinuously applying a melt of said thermoplastic material between a counter roller and said rotating high aspect ratio nano- or micro-structured extrusion casting roller, wherein said thermoplastic melt is solidified upon contact with said high aspect ratio nano- or micro-structured extrusion casting roller maintained at the temperature below the solidification temperature of said thermoplastic melt thereby forming a solid high aspect ratio nano- or micro-structured thermoplastic foil.2. The method of claim 1 , wherein ...

Device and procedure for extrusion and application of spacer profile of an insulating glass

The present relates to a device and a procedure for the extrusion and application of a spacer profile of insulating glass, particularly for a machine adapted to compose the spacer frame directly against one or more glass panes constituting the insulating glass starting from a thermoplastic product prevalently contained in drums, displacing the extrados thereof to an adjustable and controlled distance referred to the margin of one or more glass panes. 1. A device for the extrusion and application of spacer profile of insulating glass , particularly for a machine adapted to compose the spacer frame directly against one or more of the glass panes constituting the insulating glass starting from a thermoplastic product , characterized in that at least one feeler located upstream of the extrusion nozzle identifies the position of the margin of the glass pane and transmits the position signal to a controller , which through the axes H , V , ϑ , driven by synchronous motors actuates the keeping of a mutual position of nozzle-margin of the glass pane at a distance p which can be set through the operator interface.222rlr. A device according to claim 1 , wherein claim 1 , at least for the completely curvilinear shape and polygonal shape with one or more curvilinear sides of the glass pane claim 1 , the position of the margin of the glass pane is identified by a camera or by another optical device located upstream of the extrusion nozzle.3. A device according to claim 1 , wherein the position of the margin of the glass pane is identified upstream by a scanner and transmitted to the controller.4. A device according to claim 1 , wherein the position of the margin of the glass pane claim 1 , acquired either from the type signals deriving from the sensors or from the information deriving from the scanner claim 1 , is processed by the controller according to algorithms which combine the needs of homogeneity of the parameter p with the aesthetic requirements of alignment of the ...

SYSTEM AND METHOD FOR PRESERVING VALVE MEMBER TRAVEL IN A MULTI-NOZZLE EXTRUDER

An extruder has a valve assembly configured to move pins to open and close the nozzles in a multi-nozzle extruder head independently. The pins of the valve assembly that are driven by actuators into and out of engagement with nozzles in the extruder head are positioned within sleeves that extend between the valve assembly and the extruder head. A gap is provided between the extruder head and the end of the sleeves proximate the extruder head to enable thermoplastic material leaking from the extruder that contacts the pins to remain in a melted or plastic state so the thermoplastic material does not interfere with the movement of the pins. 1. An extruder comprising:an extruder head having a chamber for holding a volume of thermoplastic material and a plurality of nozzles fluidically connected to the chamber;a plurality of elongated solid members actuators, each elongated solid member having a distal end that is proximate one of the nozzles in the plurality of nozzles in a one-to-one correspondence;a plurality of actuators that are operatively connected to the plurality of elongated solid members in a one-to-one correspondence, each elongated solid member extending from the respective actuator associated with the respective elongated solid member into the extruder head and through the chamber in the extruder head, each actuator being configured to push and pull the distal end of the respective elongated solid member into and out of engagement with the respective nozzle; anda plurality of hollow members, each elongated solid member being configured to slide within one of the hollow members in a one-to-one correspondence and each hollow member extending from the respective actuator for the respective elongated solid member to a position short of the extruder head to form a gap between a distal end of the respective hollow member and the extruder head.2. The extruder of claim 1 , the extruder head further comprising:a seal; andeach elongated solid member passes through ...

MULTI-CHANNEL CO-EXTRUSION PREFORMER HAVING A MONOLITHIC THROUGH STIFFENER WHICH CAN BE OBTAINED BY ADDIVTIVE MANUFACTURING

A preformer () is designed to extrude jointly a plurality of elastomer mixes in a direction of flow (X), in order to form a profiled element, the preformer comprising for this purpose, superimposed in a direction of stacking (Z), transverse to the direction of flow (X), a first channel (), a second channel () which is separated from the first channel () by a first partition (), then a third channel (), separated from the second channel () by a second partition (), the preformer also comprising a stiffener () formed integrally with the first partition () and the second partition (), and extends through the second channel (), having a leading edge () which splits the flow of elastomer material following the second channel (). 115.-. (canceled)16. A preformer configured to extrude jointly a plurality of elastomer mixes in a common direction of flow , in order to assemble the elastomer mixes into a co-extruded profiled element , the preformer comprising:superimposed in a stacking direction, the stacking direction being a first direction transverse to the common direction of flow, a first channel configured to convey a first elastomer mix, a second channel configured to convey a second elastomer mix, the second channel being separated from the first channel by a first partition, and a third channel configured to convey a third elastomer mix, the third channel being separated from the second channel by a second partition; andat least one stiffener which is formed integrally with the first partition and the second partition and extends such as to pass through at least the second channel in the stacking direction,wherein the at least one stiffener has, at least in a cross-section of passage of the second channel, a leading edge which allows the second elastomer mix to pass around the at least one stiffener by dividing into two sub-flows, which flow, in the second channel, on both sides of the leading edge.17. The performer according to claim 16 , wherein the at least one ...

DIE FOR EXTRUSION MOLDING, PLASTIC MANUFACTURING DEVICE, AND PLASTIC MANUFACTURING METHOD

A die for extrusion molding includes an extrusion port configured to extrude a plastic composition, and a plastic flow channel configured to cause the supplied plastic composition to flow to the extrusion port. The plastic flow channel includes a supply flow channel, and an extrusion flow channel. The supply flow channel is configured to be supplied with the plastic composition. The extrusion flow channel has an upstream end coupled to the supply flow channel, and downstream end having the extrusion port. In the extrusion flow channel, a flow channel cross-sectional area perpendicular to the flow direction of the plastic composition in the extrusion flow channel gradually changes to the extrusion port, and an inner wall surface of a flow channel has a protruding surface protruding toward an inside of the flow channel in a cross section including an extrusion central axis and parallel to the extrusion central axis. 1. A die for extrusion molding comprising:an extrusion port configured to extrude a plastic composition containing at least one type of plastic; anda plastic flow channel configured to cause the supplied plastic composition to flow to the extrusion port, wherein a supply flow channel configured to be supplied with the plastic composition; and', an upstream end in a flow direction of the plastic composition, the upstream end being coupled to the supply flow channel, and', 'a downstream end in the flow direction, the downstream end having the extrusion port, and, 'an extrusion flow channel having'}], 'the plastic flow channel includesin the extrusion flow channel, a flow channel cross-sectional area perpendicular to the flow direction of the plastic composition in the extrusion flow channel gradually changes to the extrusion port, and an inner wall surface of a flow channel has a protruding surface protruding toward an inside of the flow channel in a cross section including an extrusion central axis and parallel to the extrusion central axis.2. The die for ...

ADDITIVELY MANUFACTURED EXTRUDER COMPONENTS

Disclosed are additively manufactured extruder components including a surface layer configured to contact extrudable material. The surface layer has a first additively manufactured metal composition. A base support for the surface layer has a second additively manufactured metal composition that is different from the first additively manufactured metal composition. A functionally graded material (FGM) is formed from the first and second additively manufactured metal compositions connecting the surface layer to the base support. 1. An additively manufactured extruder component , comprising:a surface layer configured to contact extrudable material, the surface layer having a first additively manufactured metal composition;a base support for the surface layer, the base support having a second additively manufactured metal composition that is different from the first additively manufactured metal composition; anda functionally graded material (FGM) formed from the first and second additively manufactured metal compositions connecting the surface layer to the base support.2. The additively manufactured extruder component of claim 1 , in which the first and second additively manufactured metal compositions include claim 1 , respectively claim 1 , first and second sintered metal materials that are different from each other.3. The additively manufactured extruder component of claim 1 , in which the first additively manufactured metal composition is harder claim 1 , more wear resistant than the second additively manufactured metal composition that is more ductile than the first additively manufactured metal composition.4. The additively manufactured extruder component of claim 1 , in which the first additively manufactured metal composition is selected from a group comprising tool steels claim 1 , powdered metal tool steels claim 1 , stainless steels claim 1 , nickel-based materials claim 1 , cobalt-based materials claim 1 , carbide metal matrix composites claim 1 , ceramics ...

Method and apparatus for making form-in-place hollow gaskets

An apparatus for making hollow, form-in-place gaskets is disclosed. The apparatus includes a nozzle and a forming surface. The nozzle comprises an extrusion orifice for extruding a gasket onto the forming surface. The apparatus further includes means for the nozzle to separately communicate with an air supply and a liquid elastomer supply. The nozzle configuration maintains the separation between the supplied air and the supplied liquid elastomer proximate to the extrusion orifice.

Pin cam deflector nut

The present disclosure generally relates to extrusion die systems. In particular, the present disclosure relates to a specialty pin cam nut designed for the ease of assembly and disassembly of extrusion dies.

FLOW REGULATOR FOR EXTRUDER ASSEMBLY

An extruder assembly includes a rolling assembly. An extrusion block includes a plurality of extruding ports that receive an extrudable material from the rolling assembly. A regulating mechanism is positioned within, above, or otherwise near each extruding port of the plurality of extruding ports. The regulating mechanism is operable with respect to the rolling assembly to modify a flow of extrudable material through each respective extruding port. 1. An extruder assembly comprising:a rolling assembly;an extrusion block having a plurality of extruding ports that receive an extrudable material from the rolling assembly, anda regulating mechanism positioned within each extruding port of the plurality of extruding ports, wherein the regulating mechanism is operable with respect to the rolling assembly to modify a flow of extrudable material through each respective extruding port.2. The extruder assembly of claim 1 , wherein each regulating mechanism is linearly operated within the respective extruding port.3. The extruder assembly of claim 1 , wherein operation of the regulating mechanism adjusts a volume of the extrudable material that is delivered through the respective extruding port.4. The extruder assembly of claim 1 , wherein the regulating mechanism includes a plurality of flow regulators that are respectively positioned within the plurality of extruding ports.5. The extruder assembly of claim 4 , wherein each flow regulator of the plurality of flow regulators are selectively and independently operable within each respective extruding port.6. The extruder assembly of claim 5 , wherein each flow regulator is controlled by a dedicated motor.7. The extruder assembly of claim 5 , wherein each flow regulator is manually controlled by a corresponding manual assembly.8. The extruder assembly of claim 5 , wherein each flow regulator is operable between a less-volume position proximate the rolling assembly and a more-volume position distal from the rolling assembly.9. ...

Retaining device for an extruder housing

The invention relates to an extruder which has an extruder housing. The housing has at least two housing parts and is provided with a delivery channel in order to extrude a medium, at least one screw conveyor being located in said channel. The extruder housing is releasably retained on a frame by means of a first retaining device and a shaft section of the screw conveyor is releasably connected to a drive device. According to the invention the housing parts are fixed relative to one another by means of a second retaining device and the extruder housing is connected to the frame and secured against displacement in the longitudinal direction of the extruder housing by means of a third retaining device. When the first and third retaining device) are released, the housing parts can be removed as a unit from the frame.

Extrusion device and extrusion method that produces a plastic film

An extrusion device that produces plastic film includes at least two feed units that feed feedstock to an extruder, wherein each feed unit has at least one discharge opening including a discharge closure to open and close the discharge opening, and a container interface that reversibly fastens a discharge container that accommodates feedstock discharged from the respective feed unit.

Film with Layered Segments and Apparatus and Method for Making the Same

A film having first segments and second segments arranged across the film's width direction is disclosed. The first and second segments are separated from each other by polymer interfaces. The first segments include a first polymeric composition and the second segments include a second polymeric composition. At least some of the second segments are layered second segments having first and second layers in the film's thickness direction, and one of the first or second layers includes a third polymeric composition different from the second polymeric composition. An extrusion die useful for making the film and a method for making the film using the extrusion die are also disclosed.

Modified tire sealant mixing device

A mixing and extrusion machine for tire sealant materials of the type comprising: a dump extruder equipped with conical converging twin screws located in a batching chamber, said chamber having a low pressure feeding area and a high pressure ducted area; a removable blind flange for temporarily sealing the outlet of said batching chamber so that said material is forced to recirculate between said duct area and said feeding area within said batching chamber, said chamber thereby also acting as a compounding chamber; and an inlet port located in the high pressure ducted area, the inlet port capable of introducing a diluent during mixing of a tire sealant material.

METHODS FOR MANUFACTURING BULKED CONTINUOUS CARPET FILAMENT

A method of manufacturing bulked continuous carpet filament from recycled polymer. In various embodiments, the method includes: (1) reducing recycled polymer material into polymer flakes; (2) cleansing the polymer flakes; (3) melting the flakes into a polymer melt; (4) removing water and contaminants from the polymer melt by dividing the polymer melt into a plurality of polymer streams and exposing those streams to pressures below 5 millibars; (5) recombining the streams; and (6) using the resulting purified polymer to produce bulked continuous carpet filament. 1. A system for manufacturing bulked continuous carpet filament , the system comprising:a first section of a melt processing unit, the first section being configured to melt a plurality of polymer flakes to create a first single stream of polymer melt;a separation element configured to receive the first single stream of polymer melt and divide the first single stream of polymer melt into multiple streams of polymer melt; receive the multiple streams of polymer melt,', 'allow the multiple streams of polymer melt to pass through the multiple stream section and into a receiving section of the melt processing unit, and', 'expose the multiple streams of polymer melt to a pressure within the multiple stream section of the melt processing unit as the multiple streams of polymer melt pass through the multiple stream section of the melt processing unit; and, 'a multiple stream section of the melt processing unit configured toa pressure regulation system configured to maintain the pressure within the multiple stream section of the melt processing unit between about 0 millibars and about 5 millibars as the multiple streams of polymer pass through the multiple stream section, wherein: receive the multiple streams of polymer melt,', 'recombine the multiple streams of polymer melt into at least one combined stream of polymer melt, and', 'convey the at least one combined stream of polymer melt toward at least one spinning ...

APPARATUS FOR MANUFACTURING ADVANCED POLYMER COMPOSITE INCLUDING TORPEDO ASSEMBLY

According to the present disclosure, an apparatus for manufacturing advanced polymer composite including torpedo assembly includes a housing supplied with a molten resin, a torpedo assembly arranged on the inside of the housing and having multiple resin channels and formed on a surface thereof in a longitudinal direction such that the molten resin flows, a dispersion portion rotatably arranged on an outer circumferential surface of the torpedo assembly and configured to uniformly disperse the molten resin and an additive by stirring the molten resin, a drive unit for rotating the torpedo assembly and the dispersion portion multiple vent rings in close contact with the outside of the dispersion portion to discharge gas, and a head 1. An apparatus for manufacturing advanced polymer composite including torpedo assembly comprising:{'b': 16', '12', '14, 'a housing supplied with a molten resin mixed with an additive and including a gas outlet and a gas inlet ;'}{'b': 20', '16', '18', '34', '18', '34, 'a torpedo assembly arranged in a lengthwise direction in a hollow formed on the inside of the housing and includes multiple resin channels and formed on a surface in a longitudinal direction and configured to discharge gas included in the molten resin while the molten resin flows through the resin channels and under a certain pressure;'}{'b': 40', '20', '18', '34, 'a dispersion portion rotatably arranged on an outer circumferential surface of the torpedo assembly in a circumferential direction and configured to uniformly disperse the molten resin and an additive by stirring the molten resin flowing along the resin channels and ;'}{'b': 50', '16', '20', '40, 'a drive unit included in the housing to rotate the torpedo assembly and the dispersion portion ;'}{'b': 22', '40', '18', '34, 'multiple vent rings configured to be in contact with an external portion of the dispersion portion and configured to seal outer radius openings of the resin channels and to prevent the molten ...

Method for interdigitated finger coextrusion

A method for depositing a structure comprising interdigitated materials includes merging flows of at least two materials in a first direction into a first combined flow, dividing the first combined flow in a second direction to produce at least two separate flows, wherein the second direction is perpendicular to the first direction, and merging the two separate flows into a second combined flow.

Hydrogel fibers and preparation thereof

This invention provides a Polymer Fiber and Polymer Optical Fiber (POF) wherein said polymer is a hydrogel. This invention further provides a process for preparing water-absorbent and superabsorbent acrylate polymer fibers and polymer optical fibers, and provides encapsulated, biodegradable, renewable and functional hydrogel fibers and hydrogel optical fibers prepared according to the process of this invention.

Apparatus for producing laminated fabric ply strips

An apparatus is provided for making reinforced ply is described. The apparatus includes a cross-head die assembly for use with an extruder, the cross-head die assembly having: an inlet section having an inlet for receiving flow from the extruder; an upper support block removably connected to a first side of the interior section; and a lower block removably connected to a second side of the interior section. A first flow passage is located between the upper support block and the interior section and is in fluid communication with the inlet. A second flow passage is located between the interior section and the lower support block and is in fluid communication with the inlet. The cross-head die assembly further includes a removably mounted die located at an outlet end of the assembly. The first and second flow passage is in fluid communication with an inlet of the die; each flow passage has a raised center rib and an area that decreases from the inlet to the outlet.

DEVICE AND METHOD FOR PRODUCING A DYED AND AN UNDYED PLASTIC MELT

A device for producing a dyed plastic melt and an undyed plastic melt includes a multi-shaft screw extruder, a first metering installation, a second metering installation, and a control installation for selecting between a first operating mode for producing the dyed plastic melt and a second operating mode for producing the undyed plastic melt. The first metering installation serves for feeding an undyed plastic material through a first infeed opening into a housing of the multi-shaft screw extruder, and the second metering installation serves for feeding at least one color granulate through a second infeed opening into the housing. The plastic material is fed exclusively by way of the first infeed opening such that residual color granulate or dyeing agent contained therein, respectively, which is still located in the second metering installation or in the region of the second infeed opening does not contaminate the undyed plastic melt. 1. A device for producing a dyed plastic melt and an undyed plastic melt , the device comprising:a multi-shaft screw extruder for providing a plastic melt, the multi-shaft screw extruder having a housing, at least two mutually penetrating housing bores configured in the housing, a first infeed opening, a second infeed opening and at least two treatment element shafts disposed so as to be rotatingly drivable in the housing bores, the first infeed opening and the second infeed opening into the at least two mutually penetrating housing bores;a first metering installation for feeding an undyed plastic material through the first infeed opening into the at least two mutually penetrating housing bores;a second metering installation for feeding at least one color granulate through the second infeed opening into the at least two mutually penetrating housing bores; anda control installation for selecting between a first operating mode for producing the dyed plastic melt and a second operating mode for producing the undyed plastic melt.2. The ...

Continuous Polymeric Liner Production Methods for Conformable Pressure Vessels

A method and apparatus for forming a pressure vessel liner are disclosed. One method includes forming an extruded tube by extruding a parison through a die and a mandrel and forming main body sections and return line sections in the extruded tube according to a first pattern. A cross-sectional area of the return line sections is smaller than a cross-sectional area of the main body sections. The method further includes changing the pattern according to which the main body sections and the return line sections are formed from the first pattern to a second pattern without stopping the forming of the extruded tube and forming the main body sections and the return line sections in the extruded tube according to the second pattern. 1. An apparatus for forming pressure vessel liners , comprising:an extruder configured to drive a parison through a die and a mandrel to form an extruded tube; and form the extruded tube into main body sections and connecting sections according to a first pattern, a cross-sectional area of the connecting sections being smaller than a cross-sectional area of the main body sections;', 'change the pattern according to which the main body sections and the connecting sections are formed to a second pattern without interrupting the continuous cycle of the formation unit and without stopping the extrusion of the extruded tube; and', 'form the extruded tube into the main body sections and the connecting sections according to the second pattern., 'a formation unit that has a continuous cycle for forming patterns and that is configured to2. The apparatus of claim 1 , wherein the formation unit is a corrugator that includes: a motor spindle;', 'a track coupled to the motor spindle and configured to rotate about the motor spindle; and', 'a pattern of active mold elements and inactive mold elements attached to the track,', 'wherein the active mold elements are applied to the extruded tube to form the main body sections and the connecting sections and the ...

EXTRUDER SYSTEM

An improved extruder apparatus is disclosed and which includes a cylindrical barrel having a feed end and a discharge end, the feed end having an inlet in fluid communication with a hopper. The extruder screw is mounted in the cylindrical barrel, and the screw has an outer surface having one or more helical flights mounted thereon. wherein the inlet end of the cylindrical barrel has a support frame mounted thereto, wherein an upper surface of the support frame is connected to a throat of a hopper, wherein an insert is mounted to the support frame and has a lower end which extends down into the cylindrical barrel, wherein the insert has an internal passageway having a first opening on the lower end and a second opening upstream of the screw for relieving the pressure. 1. An extruder apparatus comprising:a cylindrical barrel having an inlet end and an outlet end;an extruder screw mounted in the cylindrical barrel; said screw having an outer surface having one or more helical flights mounted thereon;wherein the inlet end of the cylindrical barrel has a support frame mounted thereto, wherein an upper surface of the support frame is connected to a throat of a hopper; andwherein an insert is mounted to the support frame and has a lower end which extends down into the cylindrical barrel, wherein the insert has an internal passageway having a first opening on the lower end and a second opening.2. The extruder apparatus of wherein an upper surface of the insert is flush with an upper surface of the support frame.3. The extruder apparatus of wherein the lower surface of the insert is positioned next to the extruder screw.4. The extruder apparatus of wherein the lower surface of the insert is curved.5. The extruder apparatus of wherein the second opening is located downstream of the support frame.6. The extruder apparatus of wherein the second opening is located downstream of the throat.7. The extruder apparatus of wherein an opening is formed in the support frame adjacent the ...

Method for producing a twin screw cylinder provided with a wear-protective layer

A method for producing a twin screw cylinder provided with or having a wear-resistant coating, in which two bores, which extend essentially parallel to each other and overlap each other, are produced in a cylinder and then two liners are inserted into the bores, the liners having an essentially C-shaped cross-section, continuing from each other in the overlapping region of the bores, forming the inner surface of the bores, and serving as a wear-resistant coating. First, a tubular liner is inserted into a first bore and then is cut to form the C-shaped cross-section in accordance with the diameter of the other bore and after this, a second tubular liner is inserted into the second bore and then is cut to form the C-shaped cross-section in accordance with the diameter of the inner surface in the first bore formed by the first liner.

Molding Head Mounted on Discharge Container

The present invention is a molding head that includes: a mounting part mounted around a discharge hole of a discharge container; and a molding part having a plurality of forming holes through which a discharge discharged from the discharge hole separately passes and a molding surface to which the plurality of forming holes are open, and configured to combine a plurality of molded pieces, which are formed by the discharge molded by separately passing through the plurality of forming holes, on the molding surface to form a molding. A diffusion chamber, in which the discharge is diffused in a radial direction along the molding surface and is fed to the plurality of forming holes, is configured to be provided.

Modular heating and cooling elements for controlling temperature of materials in a flowable state

An apparatus for controlling temperature of materials in a flowable state as they flow through a barrel. The apparatus includes a band surrounding the barrel having a plurality of connected blocks, each block having an inner surface in communication with the barrel. One or more of the connected blocks has a slot therein and has a removable, temperature controlling mechanism slidably received in the slot. A flexible cover surrounds an outer surface of the band with the flexible cover having a pouch for receiving a temperature sensing element.