CA2426858C - Mecanisme a aiguille d'obturation a gaz - Google Patents

Mecanisme a aiguille d'obturation a gaz Download PDF

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Publication number
CA2426858C
CA2426858C CA002426858A CA2426858A CA2426858C CA 2426858 C CA2426858 C CA 2426858C CA 002426858 A CA002426858 A CA 002426858A CA 2426858 A CA2426858 A CA 2426858A CA 2426858 C CA2426858 C CA 2426858C
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CA
Canada
Prior art keywords
valve
pin
gas
set forth
head portion
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 - Fee Related
Application number
CA002426858A
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English (en)
Other versions
CA2426858A1 (fr
Inventor
Tristan Seres
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.)
Incoe Corp
Original Assignee
Incoe Corp
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 Incoe Corp filed Critical Incoe Corp
Publication of CA2426858A1 publication Critical patent/CA2426858A1/fr
Application granted granted Critical
Publication of CA2426858C publication Critical patent/CA2426858C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B29C45/1734—Nozzles therefor
    • B29C45/1735—Nozzles for introducing the fluid through the mould gate, e.g. incorporated in the injection nozzle
    • 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
    • B29C45/20—Injection nozzles

Abstract

La présente invention concerne un mécanisme à obturateur qu'on utilise avec des systèmes de moulage par injection de plastique à gaz. Un mécanisme à aiguille mobile est placé dans une bague ou dans une buse de presse de façon à réguler l'injection de la matière plastique dans une cavité du moule. Ce mécanisme à aiguille possède un élément d'aiguille extérieur et un élément d'aiguille intérieur. Le déplacement de l'élément d'aiguille intérieur par rapport à l'élément d'aiguille extérieur permet l'injection du gaz dans le plastique placé dans la cavité du moule. Un ressort, tel qu'une rondelle à ressort Belleville, maintient sous charge l'élément d'aiguille intérieur en position fermée par rapport à l'élément d'aiguille extérieur. La pression du gaz en provenance de la source de gaz est supérieure à la force du ressort et permet au gaz de pénétrer dans la cavité du moule.
CA002426858A 2000-10-23 2001-10-23 Mecanisme a aiguille d'obturation a gaz Expired - Fee Related CA2426858C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US69353300A 2000-10-23 2000-10-23
US09/693,533 2000-10-23
PCT/US2001/046060 WO2002034496A2 (fr) 2000-10-23 2001-10-23 Mecanisme a aiguille d'obturation a gaz

Publications (2)

Publication Number Publication Date
CA2426858A1 CA2426858A1 (fr) 2002-05-02
CA2426858C true CA2426858C (fr) 2007-09-25

Family

ID=35814997

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002426858A Expired - Fee Related CA2426858C (fr) 2000-10-23 2001-10-23 Mecanisme a aiguille d'obturation a gaz

Country Status (8)

Country Link
EP (1) EP1337389A4 (fr)
JP (1) JP4170755B2 (fr)
KR (1) KR100777378B1 (fr)
AU (2) AU3247402A (fr)
CA (1) CA2426858C (fr)
IL (2) IL155530A0 (fr)
MX (1) MXPA03003514A (fr)
WO (1) WO2002034496A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7452201B2 (en) * 2003-09-12 2008-11-18 Injectnotech Inc. Injection molding valve gate system and activating mechanism
KR101036917B1 (ko) * 2008-09-29 2011-05-25 주식회사 유도 사출기용 핫 러너 시스템의 밸브 핀 높낮이 조절장치
DE102010022366B4 (de) * 2010-06-01 2018-05-17 Psg Plastic Service Gmbh Vorrichtung zum Betätigen einer Nadelverschlussdüse
CN108081551B (zh) * 2016-11-21 2024-01-30 柳道万和(苏州)热流道系统有限公司 热流道系统

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940123A (en) * 1957-07-17 1960-06-14 Basf Ag Shut-off nozzle for injection molding of thermoplastic materials
US3941540A (en) * 1971-07-07 1976-03-02 Diamond Tool & Die Company Sprue bushing for a single cavity or center sprued mold
JPS53102960A (en) * 1977-02-21 1978-09-07 Asahi Chem Ind Co Ltd Injection mold
US4474717A (en) * 1982-05-24 1984-10-02 Lang Fastener Corporation Method of making a twin-wall internally corrugated plastic structural part with a smooth non-cellular skin
AT390758B (de) * 1988-09-19 1990-06-25 Engel Gmbh Maschbau Spritzgussduese fuer eine spritzgussmaschine
US4917594A (en) * 1989-02-28 1990-04-17 Mold-Masters Limited Injection molding system with gas flow through valve gate
DE3910025A1 (de) * 1989-03-28 1990-10-04 Krauss Maffei Ag Gasverschlussventil und verfahren zum steuern einer mit einem solchen gasverschlussventil versehenen kunststoffverarbeitungsanlage
US5054689A (en) * 1990-05-11 1991-10-08 Hoover Universal, Inc. Combination plastic and gas injection nozzle assembly and sequential method of operation
JPH0712619B2 (ja) * 1990-07-18 1995-02-15 豊田合成株式会社 射出中空成形型
US5770237A (en) * 1992-05-18 1998-06-23 Cinpres Limited Method and apparatus for producing an injection moulding of plastics material using gas assistance and a valve to control the gas supply passage
JP3294006B2 (ja) * 1993-09-22 2002-06-17 旭化成株式会社 中空射出成形方法及びそれに用いる加圧流体圧入・排出装置
CA2111248C (fr) * 1993-12-13 2002-05-07 Alex C. Teng Appareil de moulage a injection a vanne muni d'un ressort a chaque piston
JP3251772B2 (ja) * 1994-06-06 2002-01-28 三菱エンジニアリングプラスチックス株式会社 ガス注入ノズル
GB9708584D0 (en) * 1997-04-29 1997-06-18 Sp Tyres Uk Ltd Mould vents

Also Published As

Publication number Publication date
EP1337389A4 (fr) 2006-03-08
IL155530A0 (en) 2003-11-23
KR20030045133A (ko) 2003-06-09
AU3247402A (en) 2002-05-06
WO2002034496B1 (fr) 2002-08-22
IL155530A (en) 2006-08-01
JP4170755B2 (ja) 2008-10-22
AU2002232474B2 (en) 2007-08-09
WO2002034496A3 (fr) 2002-06-20
EP1337389A2 (fr) 2003-08-27
WO2002034496A2 (fr) 2002-05-02
JP2004512196A (ja) 2004-04-22
MXPA03003514A (es) 2004-05-04
KR100777378B1 (ko) 2007-11-19
CA2426858A1 (fr) 2002-05-02

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