WO2005097458A3 - Procede et dispositif de fabrication d'articles moules en plastique pourvus d'une cavite interne, par injection de liquide, en particulier d'eau, et dispositif d'injection de liquide associe - Google Patents

Procede et dispositif de fabrication d'articles moules en plastique pourvus d'une cavite interne, par injection de liquide, en particulier d'eau, et dispositif d'injection de liquide associe Download PDF

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Publication number
WO2005097458A3
WO2005097458A3 PCT/EP2005/003575 EP2005003575W WO2005097458A3 WO 2005097458 A3 WO2005097458 A3 WO 2005097458A3 EP 2005003575 W EP2005003575 W EP 2005003575W WO 2005097458 A3 WO2005097458 A3 WO 2005097458A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
inner cavity
production
plastic moulded
injection device
Prior art date
Application number
PCT/EP2005/003575
Other languages
German (de)
English (en)
Other versions
WO2005097458A2 (fr
Inventor
David Baton
Original Assignee
Bauer Compresseurs S A R L
David Baton
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
Application filed by Bauer Compresseurs S A R L, David Baton filed Critical Bauer Compresseurs S A R L
Priority to EP05736015A priority Critical patent/EP1740361A2/fr
Publication of WO2005097458A2 publication Critical patent/WO2005097458A2/fr
Publication of WO2005097458A3 publication Critical patent/WO2005097458A3/fr

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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
    • B29C45/1706—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 using particular fluids or fluid generating substances
    • 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
    • B29C45/1734—Nozzles therefor
    • 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
    • B29C45/1706—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 using particular fluids or fluid generating substances
    • B29C2045/1707—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 using particular fluids or fluid generating substances using a liquid, e.g. water
    • 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
    • B29C45/1711—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 and removing excess material from the mould cavity by the introduced fluid, e.g. to an overflow cavity
    • B29C2045/1712—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 and removing excess material from the mould cavity by the introduced fluid, e.g. to an overflow cavity plastic material flowing back into the injection unit
    • 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
    • B29C45/1711—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 and removing excess material from the mould cavity by the introduced fluid, e.g. to an overflow cavity
    • 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
    • B29C45/1732—Control circuits therefor

Landscapes

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

Abstract

Procédé de fabrication d'articles moulés en plastique pourvus d'une cavité interne, par injection de liquide, en particulier d'eau, dispositif de fabrication d'un tel article moulé en plastique pourvu d'une cavité interne et dispositif d'injection de liquide en forme de buse d'injection. Pour obtenir une cavité interne dans la matière plastique injectée dans la cavité, on introduit du liquide dans une phase dynamique selon une régulation fermée et en commandant le flux de liquide pour ce qui est de sa vitesse, de sa masse et / ou de son volume. Cette phase dynamique est suivie par une phase statique selon une régulation fermée de la pression de liquide jusqu'au durcissement complet de l'article moulé en plastique à cavité interne dans la cavité du moule, pour amener une pression de compression. Dans le dispositif de fabrication d'articles moulés en plastique pourvus d'une cavité interne, un dispositif d'injection (20) de liquide est actionné à l'aide d'un dispositif de commande (26) de manière telle que dans une phase dynamique, un flux de liquide est introduit en régulation fermée pour ce qui est de sa vitesse, de sa masse et / ou de son volume et qu'un passage à une phase statique est opéré, phase dans laquelle la pression de liquide est ajustée et maintenue selon une régulation fermée jusqu'au durcissement complet de l'article moulé en plastique (10) dans la cavité (2) du moule, pour amener une pression de compression. La présente invention concerne également un dispositif d'injection (20) de liquide conçu sous forme d'une buse d'injection (21) dont la pointe fait saillie dans une cavité (2) du moule et dans la matière plastique (3) qui s'y trouve, de préférence dans la direction de démoulage. Cette buse d'injection (21) se présente sous forme d'un robinet à tiroir ne s'ouvrant que sous l'action d'un liquide sous pression et déchargeant un flux de liquide dans le sens de la flèche (22), de préférence verticalement par rapport à la direction de démoulage.
PCT/EP2005/003575 2004-04-05 2005-04-05 Procede et dispositif de fabrication d'articles moules en plastique pourvus d'une cavite interne, par injection de liquide, en particulier d'eau, et dispositif d'injection de liquide associe WO2005097458A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05736015A EP1740361A2 (fr) 2004-04-05 2005-04-05 Procede et dispositif de fabrication d'articles moules en plastique pourvus d'une cavite interne, par injection de liquide, en particulier d'eau, et dispositif d'injection de liquide associe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004016703 2004-04-05
DE102004016703.6 2004-04-05
DE102005015582A DE102005015582A1 (de) 2004-04-05 2005-04-05 Verfahren und Vorrichtung zur Herstellung von Kunststoffformteilen mit Innenhohlraum mittels Injektion von Flüssigkeit, insbesondere Wasser, und Flüssigkeitseinspritzeinrichtung hierfür
DE102005015582.0 2005-04-05

Publications (2)

Publication Number Publication Date
WO2005097458A2 WO2005097458A2 (fr) 2005-10-20
WO2005097458A3 true WO2005097458A3 (fr) 2006-02-16

Family

ID=34965737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/003575 WO2005097458A2 (fr) 2004-04-05 2005-04-05 Procede et dispositif de fabrication d'articles moules en plastique pourvus d'une cavite interne, par injection de liquide, en particulier d'eau, et dispositif d'injection de liquide associe

Country Status (3)

Country Link
EP (1) EP1740361A2 (fr)
DE (1) DE102005015582A1 (fr)
WO (1) WO2005097458A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100972512B1 (ko) * 2005-12-29 2010-07-26 엘지디스플레이 주식회사 액정표시패널의 절단방법 및 이를 이용한 액정표시패널의제조방법
CN108527792B (zh) * 2018-04-10 2021-06-08 宁波科隆阁机械有限公司 一种水辅注塑成型带压力检测的注射装置

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824732A (en) * 1983-05-11 1989-04-25 Cinpres Limited Process and apparatus for injection moulding and mouldings produced thereby
US5101858A (en) * 1989-03-28 1992-04-07 Krauss Maiffei, Ag Gas sealing valve and valve equipped plastic processing installation
JPH04175121A (ja) * 1990-03-20 1992-06-23 Sekisui Chem Co Ltd 射出成型用金型
EP0467565B1 (fr) * 1990-07-19 1995-05-17 Olde Nitro Company Unité de contrôle de pressurisation
US5511967A (en) * 1994-02-14 1996-04-30 Pebra Gmbh Paul Braun Self-contained gas injector
EP0806272A1 (fr) * 1994-11-25 1997-11-12 Asahi Kasei Kogyo Kabushiki Kaisha Procede ameliore de moulage par injection permettant de produire un objet en resine moule par soufflage, et moule utilise selon ledit procede
US5750155A (en) * 1992-09-28 1998-05-12 Battenfeld Gmbh Device for the injection molding of plastic objects enclosing hollow spaces and process for operating it
US5798080A (en) * 1995-03-30 1998-08-25 Toyoda Gosei Co., Ltd. Method of producing a hollow resin body and apparatus therefor
EP1070576A2 (fr) * 1999-07-17 2001-01-24 The University of Warwick Procédé et dispositif de moulage en utilisant l'injection de gaz
EP1182025A1 (fr) * 2000-08-16 2002-02-27 GEIGER TECHNIK GmbH Moulage par injection assisté par liquide
EP1197312A1 (fr) * 2000-10-13 2002-04-17 ENGEL Maschinenbau Gesellschaft mbH Dispositif de moulage par injection de matière plastique
US6386852B1 (en) * 2000-02-22 2002-05-14 Asc Incorporated Gas assist needle in a molding machine
US6432352B1 (en) * 1995-02-23 2002-08-13 Desider G. Csongor Jewel orifice nozzle
DE10114418A1 (de) * 2001-03-23 2002-10-10 Battenfeld Gmbh Verfahren zum Spritzgießen von mindestens einen Hohlraum aufweisenden Formteilen aus wärmehärtendem Kunststoff
WO2002087844A1 (fr) * 2001-04-26 2002-11-07 Cinpres Gas Injection Limited Procede et appareil de moulage par injection
DE10247823A1 (de) * 2002-10-14 2004-04-22 Battenfeld Gmbh Vorrichtung und Verfahren zum Regeln von Flüssigkeitseingabe

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824732A (en) * 1983-05-11 1989-04-25 Cinpres Limited Process and apparatus for injection moulding and mouldings produced thereby
US5101858A (en) * 1989-03-28 1992-04-07 Krauss Maiffei, Ag Gas sealing valve and valve equipped plastic processing installation
JPH04175121A (ja) * 1990-03-20 1992-06-23 Sekisui Chem Co Ltd 射出成型用金型
EP0467565B1 (fr) * 1990-07-19 1995-05-17 Olde Nitro Company Unité de contrôle de pressurisation
US5750155A (en) * 1992-09-28 1998-05-12 Battenfeld Gmbh Device for the injection molding of plastic objects enclosing hollow spaces and process for operating it
US5511967A (en) * 1994-02-14 1996-04-30 Pebra Gmbh Paul Braun Self-contained gas injector
EP0806272A1 (fr) * 1994-11-25 1997-11-12 Asahi Kasei Kogyo Kabushiki Kaisha Procede ameliore de moulage par injection permettant de produire un objet en resine moule par soufflage, et moule utilise selon ledit procede
US6432352B1 (en) * 1995-02-23 2002-08-13 Desider G. Csongor Jewel orifice nozzle
US5798080A (en) * 1995-03-30 1998-08-25 Toyoda Gosei Co., Ltd. Method of producing a hollow resin body and apparatus therefor
EP1070576A2 (fr) * 1999-07-17 2001-01-24 The University of Warwick Procédé et dispositif de moulage en utilisant l'injection de gaz
US6386852B1 (en) * 2000-02-22 2002-05-14 Asc Incorporated Gas assist needle in a molding machine
EP1182025A1 (fr) * 2000-08-16 2002-02-27 GEIGER TECHNIK GmbH Moulage par injection assisté par liquide
EP1197312A1 (fr) * 2000-10-13 2002-04-17 ENGEL Maschinenbau Gesellschaft mbH Dispositif de moulage par injection de matière plastique
DE10114418A1 (de) * 2001-03-23 2002-10-10 Battenfeld Gmbh Verfahren zum Spritzgießen von mindestens einen Hohlraum aufweisenden Formteilen aus wärmehärtendem Kunststoff
WO2002087844A1 (fr) * 2001-04-26 2002-11-07 Cinpres Gas Injection Limited Procede et appareil de moulage par injection
DE10247823A1 (de) * 2002-10-14 2004-04-22 Battenfeld Gmbh Vorrichtung und Verfahren zum Regeln von Flüssigkeitseingabe

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BRUNSWICK A: "GEWUSST WIE! FRAGEN UND ANTWORTEN ZUR WASSERINJEKTIONSTECHNIK", KUNSTSTOFFE, HANSER, MUNCHEN, DE, vol. 92, no. 9, September 2002 (2002-09-01), pages 94 - 98, XP001119349, ISSN: 0023-5563 *
MICHAELI W ET AL: "DIE WIT AUF DEM WEG ZUR SERIE WASSERINJEKTIONSTECHNIK JETZT INDUSTRIELL ANGEWENDET", KUNSTSTOFFE, HANSER, MUNCHEN, DE, vol. 91, no. 3, March 2001 (2001-03-01), pages 104 - 106, XP001039128, ISSN: 0023-5563 *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 480 (M - 1321) 6 October 1992 (1992-10-06) *

Also Published As

Publication number Publication date
EP1740361A2 (fr) 2007-01-10
DE102005015582A1 (de) 2006-01-26
WO2005097458A2 (fr) 2005-10-20

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