WO2005097458A3 - Method and device for the production of plastic moulded items with an inner cavity by injecting liquid, particularly water, and liquid injection device therefor - Google Patents

Method and device for the production of plastic moulded items with an inner cavity by injecting liquid, particularly water, and liquid injection device therefor 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)
French (fr)
Other versions
WO2005097458A2 (en
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/en
Publication of WO2005097458A2 publication Critical patent/WO2005097458A2/en
Publication of WO2005097458A3 publication Critical patent/WO2005097458A3/en

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
    • 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

Abstract

Disclosed is a method for the production of plastic moulded items with an inner cavity by injecting liquid, particularly water, a device for the production of said plastic moulded items with an inner cavity and a liquid injection device in the form of an injection nozzle. In order to produce an inner cavity in the plastic material which is injected into the cavity, liquid is introduced in a dynamic phase according to closed adjustment and control of the flow of liquid according to speed, mass and/or volume. This is followed by a static phase according to closed adjustment of the pressure of the liquid until final solidification of the plastic moulded item with an inner cavity inside the cavity of the mould resulting in compression. The invention also relates to a liquid injection device (20) which is embodied in the form of an injection nozzle (21) g. The injection nozzle (21) is embodied in the form of a sliding valve which only opens when a pressurized liquid is applied and which discharges a flow of liquid in the direction of the arrow (22), preferably perpendicular to the demoulding device.
PCT/EP2005/003575 2004-04-05 2005-04-05 Method and device for the production of plastic moulded items with an inner cavity by injecting liquid, particularly water, and liquid injection device therefor WO2005097458A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05736015A EP1740361A2 (en) 2004-04-05 2005-04-05 Method and device for the production of plastic moulded items with an inner cavity by injecting liquid, particularly water, and liquid injection device therefor

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004016703 2004-04-05
DE102004016703.6 2004-04-05
DE102005015582A DE102005015582A1 (en) 2004-04-05 2005-04-05 Method and device for producing plastic moldings with internal cavity by means of injection of liquid, in particular water, and liquid injection device for this purpose
DE102005015582.0 2005-04-05

Publications (2)

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

Family

ID=34965737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/003575 WO2005097458A2 (en) 2004-04-05 2005-04-05 Method and device for the production of plastic moulded items with an inner cavity by injecting liquid, particularly water, and liquid injection device therefor

Country Status (3)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100972512B1 (en) * 2005-12-29 2010-07-26 엘지디스플레이 주식회사 Method of cutting liquid crystal display panel and method of fabricating liquid crystal display panel using the same
CN108527792B (en) * 2018-04-10 2021-06-08 宁波科隆阁机械有限公司 Injection device with pressure detection function for water-assisted injection molding

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 (en) * 1990-03-20 1992-06-23 Sekisui Chem Co Ltd Injection molding mold
EP0467565B1 (en) * 1990-07-19 1995-05-17 Olde Nitro Company Pressurization control unit
US5511967A (en) * 1994-02-14 1996-04-30 Pebra Gmbh Paul Braun Self-contained gas injector
EP0806272A1 (en) * 1994-11-25 1997-11-12 Asahi Kasei Kogyo Kabushiki Kaisha Improved injection molding method for producing resin blow molded article and mold used for said method
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 (en) * 1999-07-17 2001-01-24 The University of Warwick Gas injection molding method and apparatus
EP1182025A1 (en) * 2000-08-16 2002-02-27 GEIGER TECHNIK GmbH Injection moulding assisted by liquids
EP1197312A1 (en) * 2000-10-13 2002-04-17 ENGEL Maschinenbau Gesellschaft mbH Plastic injection moulding apparatus
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 (en) * 2001-03-23 2002-10-10 Battenfeld Gmbh Hollow plastic component injection molding process involves injection of a fluid with high heat capacity into melt in a tool cavity
WO2002087844A1 (en) * 2001-04-26 2002-11-07 Cinpres Gas Injection Limited Method and apparatus for injection moulding
DE10247823A1 (en) * 2002-10-14 2004-04-22 Battenfeld Gmbh Liquid supply regulation unit, comprises primary and secondary control valves, primary , secondary and tertiary liquid connections, and control circuitry

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 (en) * 1990-03-20 1992-06-23 Sekisui Chem Co Ltd Injection molding mold
EP0467565B1 (en) * 1990-07-19 1995-05-17 Olde Nitro Company Pressurization control unit
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 (en) * 1994-11-25 1997-11-12 Asahi Kasei Kogyo Kabushiki Kaisha Improved injection molding method for producing resin blow molded article and mold used for said method
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 (en) * 1999-07-17 2001-01-24 The University of Warwick Gas injection molding method and apparatus
US6386852B1 (en) * 2000-02-22 2002-05-14 Asc Incorporated Gas assist needle in a molding machine
EP1182025A1 (en) * 2000-08-16 2002-02-27 GEIGER TECHNIK GmbH Injection moulding assisted by liquids
EP1197312A1 (en) * 2000-10-13 2002-04-17 ENGEL Maschinenbau Gesellschaft mbH Plastic injection moulding apparatus
DE10114418A1 (en) * 2001-03-23 2002-10-10 Battenfeld Gmbh Hollow plastic component injection molding process involves injection of a fluid with high heat capacity into melt in a tool cavity
WO2002087844A1 (en) * 2001-04-26 2002-11-07 Cinpres Gas Injection Limited Method and apparatus for injection moulding
DE10247823A1 (en) * 2002-10-14 2004-04-22 Battenfeld Gmbh Liquid supply regulation unit, comprises primary and secondary control valves, primary , secondary and tertiary liquid connections, and control circuitry

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
DE102005015582A1 (en) 2006-01-26
WO2005097458A2 (en) 2005-10-20
EP1740361A2 (en) 2007-01-10

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