ES2181356T3 - Procedimientos y dispositivos de moldeo por inyeccion de piezas moldeadas de termoplastico. - Google Patents

Procedimientos y dispositivos de moldeo por inyeccion de piezas moldeadas de termoplastico.

Info

Publication number
ES2181356T3
ES2181356T3 ES99120224T ES99120224T ES2181356T3 ES 2181356 T3 ES2181356 T3 ES 2181356T3 ES 99120224 T ES99120224 T ES 99120224T ES 99120224 T ES99120224 T ES 99120224T ES 2181356 T3 ES2181356 T3 ES 2181356T3
Authority
ES
Spain
Prior art keywords
fluid
melt
pressure
screw flight
pressure difference
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES99120224T
Other languages
English (en)
Other versions
ES2181356T5 (es
Inventor
Jurgen Ehritt
Helmut Eckardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Battenfeld GmbH
Original Assignee
Battenfeld GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7884947&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2181356(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Battenfeld GmbH filed Critical Battenfeld GmbH
Application granted granted Critical
Publication of ES2181356T3 publication Critical patent/ES2181356T3/es
Publication of ES2181356T5 publication Critical patent/ES2181356T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/422—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum by injecting by forward movement of the plastizising screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/60—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C2045/1722—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles injecting fluids containing plastic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/83—Injection molding of polyolefin-type foam

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Procedimiento de moldeo por inyección de piezas moldeadas de termoplástico, que presenta las etapas de: a) Hacer masa fundida de termoplástico (1) mediante la rotación de un husillo de plastificación e inyección (2) en un cilindro de extrusión (3); b) mezclar la masa fundida de termoplástico (1) con un fluido (4) mediante la introducción del mismo (4) en el cilindro de extrusión (3); c) efectuar una mezcla íntima con la masa fundida de termoplástico (1) mezclada con fluido (4) mediante la realización de un movimiento de rotación del husillo de plastificación e inyección (2); d) inyectar la mezcla de masa fundida de termoplástico (1) y fluido (4) al interior de la cavidad (8) de un molde de inyección (5); en el cual la inyección de la mezcla de masa fundida de termoplástico (1) y fluido (4) al interior de la cavidad (8) de un molde de inyección (5) tiene lugar mediante desplazamiento traslacional del husillo de plastificación e inyección (2); el fluido (4) es introducido en el cilindro deextrusión (3) en un punto axial (6) en el que se encuentran al menos temporalmente los filetes helicoidales (7) del husillo de plastificación e inyección (2); y durante la introducción del fluido (4) al interior del cilindro de extrusión (3) según la etapa c) se mantiene considerablemente constante la diferencia de presiones (delta p) entre la presión (pF) del fluido (4) y la presión (pS) reinante en la masa fundida de termoplástico (1).
ES99120224T 1998-10-20 1999-10-09 Procedimientos y dispositivos de moldeo por inyeccion de piezas moldeadas de termoplastico. Expired - Lifetime ES2181356T5 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19848151A DE19848151C2 (de) 1998-10-20 1998-10-20 Verfahren und Vorrichtung zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff
DE19848151 1998-10-20

Publications (2)

Publication Number Publication Date
ES2181356T3 true ES2181356T3 (es) 2003-02-16
ES2181356T5 ES2181356T5 (es) 2008-06-16

Family

ID=7884947

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99120224T Expired - Lifetime ES2181356T5 (es) 1998-10-20 1999-10-09 Procedimientos y dispositivos de moldeo por inyeccion de piezas moldeadas de termoplastico.

Country Status (6)

Country Link
US (1) US6451230B1 (es)
EP (1) EP0995569B2 (es)
JP (1) JP3288356B2 (es)
AT (1) ATE220608T1 (es)
DE (2) DE19848151C2 (es)
ES (1) ES2181356T5 (es)

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US6926507B2 (en) * 2000-03-07 2005-08-09 Trexel, Inc. Blowing agent delivery system
WO2001091987A1 (fr) * 2000-05-31 2001-12-06 Asahi Kasei Kabushiki Kaisha Procede de moulage par injection
US6602063B1 (en) 2000-07-21 2003-08-05 Trexel, Inc. Discontinuous blowing agent delivery system and method
US6616434B1 (en) 2000-08-10 2003-09-09 Trexel, Inc. Blowing agent metering system
US7814641B2 (en) 2001-01-09 2010-10-19 Black & Decker Inc. Method of forming a power tool
US7096566B2 (en) * 2001-01-09 2006-08-29 Black & Decker Inc. Method for making an encapsulated coil structure
JP2003225935A (ja) * 2002-02-01 2003-08-12 Toshiba Mach Co Ltd 射出成形機および溶融樹脂粘度調整方法
ITBO20020563A1 (it) * 2002-09-05 2004-03-06 Cgr System S R L Dispositivo per l'alimentazione di agente espandente
US7144532B2 (en) * 2002-10-28 2006-12-05 Trexel, Inc. Blowing agent introduction systems and methods
US20060043219A1 (en) * 2004-09-02 2006-03-02 Moshe Raanan Drip irrigation pipe
ATE371599T1 (de) * 2005-05-18 2007-09-15 Microcell S R L Synthetischer stopfen für sektflaschen u. dgl. mit manueller entkorkung
US20070052124A1 (en) * 2005-09-02 2007-03-08 Park Chul B Apparatus and method for advanced structural foam molding
US7767119B2 (en) * 2005-09-29 2010-08-03 Plakor Co., Ltd. Gas injecting device of cylinder for injection molding machine, and method for controlling amount of gas injected into barrel of injection molding machine
US20090045613A1 (en) * 2007-02-16 2009-02-19 Collins & Aikman Products Co. Energy management system
US7908736B2 (en) * 2007-11-21 2011-03-22 Black & Decker Inc. Method of making an armature
KR102039617B1 (ko) 2011-01-27 2019-11-01 뉴우바란스아스레틱스인코포레이팃드 신발류에 사용되는 물질을 형성하기 위한 사출 성형 시스템 및 방법과 상기 시스템 및 방법에 의해 제조된 물질
DE102011105764B4 (de) 2011-06-24 2014-11-20 Wittmann Battenfeld Gmbh Vorrichtung zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff
DE102011105768B4 (de) 2011-06-24 2014-09-11 Wittmann Battenfeld Gmbh Verfahren zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff
DE102011105775B4 (de) 2011-06-24 2016-01-14 Wittmann Battenfeld Gmbh Verfahren zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff
DE102011105765B4 (de) 2011-06-24 2014-11-20 Wittmann Battenfeld Gmbh Verfahren zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff
DE102011105772B4 (de) 2011-06-24 2014-10-30 Wittmann Battenfeld Gmbh Vorrichtung zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff
EP2719514A1 (de) * 2012-10-12 2014-04-16 NKS M. Baukloh Verfahren und Vorrichtung zur Herstellung eines Kunststoffformteils
US9956732B2 (en) 2014-08-06 2018-05-01 New Balance Athletics, Inc. Injection molding systems and methods for forming materials used in footwear and materials manufactured by said systems and methods
DE102018219039A1 (de) 2018-11-08 2020-05-14 Universität Stuttgart Verfahren zum Verhindern einer Freistrahlbildung während des Spritzgießens
DE202021103086U1 (de) 2021-06-08 2021-06-15 Kraussmaffei Technologies Gmbh Vorrichtung zum Dosieren eines Fluids
CN117794718A (zh) * 2021-06-24 2024-03-29 Sabic环球技术有限责任公司 制备具有改进表面质量的发泡制品的注塑方法
CN114506026B (zh) * 2022-02-23 2022-11-29 无锡永凯达齿轮有限公司 一种用于汽车的张紧器加工设备

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Also Published As

Publication number Publication date
ES2181356T5 (es) 2008-06-16
EP0995569A2 (de) 2000-04-26
ATE220608T1 (de) 2002-08-15
DE19848151A1 (de) 2000-04-27
EP0995569A3 (de) 2000-05-31
EP0995569B2 (de) 2008-01-23
EP0995569B1 (de) 2002-07-17
DE19848151C2 (de) 2002-09-19
JP2000141435A (ja) 2000-05-23
US6451230B1 (en) 2002-09-17
JP3288356B2 (ja) 2002-06-04
DE59902024D1 (de) 2002-08-22

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