ES2149112A1 - Gas injection mold - Google Patents

Gas injection mold

Info

Publication number
ES2149112A1
ES2149112A1 ES009802196A ES9802196A ES2149112A1 ES 2149112 A1 ES2149112 A1 ES 2149112A1 ES 009802196 A ES009802196 A ES 009802196A ES 9802196 A ES9802196 A ES 9802196A ES 2149112 A1 ES2149112 A1 ES 2149112A1
Authority
ES
Spain
Prior art keywords
gas injection
gas
cavity
avoiding
injection mold
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.)
Granted
Application number
ES009802196A
Other languages
Spanish (es)
Other versions
ES2149112B1 (en
Inventor
Jai-Kwon Lee
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of ES2149112A1 publication Critical patent/ES2149112A1/en
Application granted granted Critical
Publication of ES2149112B1 publication Critical patent/ES2149112B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1703Introducing an auxiliary fluid into the mould
    • B29C45/1704Introducing 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
    • B29C45/1711Introducing 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701Details not specific to hot or cold runner channels
    • B29C45/2708Gates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0046Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
    • B29C2045/0049Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity the injected material flowing against a mould cavity protruding part

Landscapes

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

Abstract

Gas injection molding machine. A gas injection molding machine provided with an auxiliary cavity formed in one side of a cavity to allow the molten resin to be nebulized and expelled from the cavity by injecting gas through a door, the auxiliary cavity having a means of control to freely change an area of the same in order to house the resin to be nebulized during the injection of the gas, thus avoiding the formation of defects on the external surface of the molded product and avoiding the inconvenience of additional finishes of the molded product after gas injection. Figure 3. (Machine-translation by Google Translate, not legally binding)
ES009802196A 1997-10-24 1998-10-21 MOLDING MACHINE WITH GAS INJECTION. Expired - Lifetime ES2149112B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970054948A KR100248773B1 (en) 1997-10-24 1997-10-24 A molder of gas injection molding

Publications (2)

Publication Number Publication Date
ES2149112A1 true ES2149112A1 (en) 2000-10-16
ES2149112B1 ES2149112B1 (en) 2001-05-01

Family

ID=19523401

Family Applications (1)

Application Number Title Priority Date Filing Date
ES009802196A Expired - Lifetime ES2149112B1 (en) 1997-10-24 1998-10-21 MOLDING MACHINE WITH GAS INJECTION.

Country Status (4)

Country Link
JP (1) JPH11192645A (en)
KR (1) KR100248773B1 (en)
CN (1) CN1217250A (en)
ES (1) ES2149112B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010113253A (en) * 2000-06-17 2001-12-28 김성동 Forming mold construction
TW548173B (en) * 2001-07-10 2003-08-21 Cinpres Gas Injection Ltd Process and apparatus for injection moulding a hollow plastics article
CN108381803B (en) * 2018-03-21 2023-12-15 江西海源复合材料科技股份有限公司 Resin and cut-off glass fiber mixing equipment
KR102257217B1 (en) * 2019-06-18 2021-05-28 한국생산기술연구원 Apparatus for preventing air trap on the bullet-shaped injection products
CN113145716B (en) * 2021-03-25 2022-10-25 哈尔滨工业大学 Two-piece one-die forming method for mutually symmetrical characteristic parts
CN113799334A (en) * 2021-10-20 2021-12-17 宁波方正汽车模具股份有限公司 Gas-assisted forming mechanism of automobile door plate handrail
CN113927835B (en) * 2021-10-22 2023-06-30 江苏汇鼎光学眼镜有限公司 Resin filling auxiliary device in production process of resin spectacle lenses

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262105A (en) * 1990-01-30 1993-11-16 Toyoda Gosei Co., Ltd. Method for molding hollow shaped bodies
JPH07148798A (en) * 1993-11-29 1995-06-13 Asahi Chem Ind Co Ltd Injection molded product, injection molding method and mold apparatus used therein
JPH0852753A (en) * 1994-08-12 1996-02-27 Mitsubishi Gas Chem Co Inc Method for injection-molding of molded article with hollow structure
JPH08118429A (en) * 1994-10-26 1996-05-14 Sekisui Chem Co Ltd Injection mold and injection-molded article

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3827333B2 (en) * 1993-04-14 2006-09-27 株式会社プライムポリマー Gas injection molding method and its mold

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262105A (en) * 1990-01-30 1993-11-16 Toyoda Gosei Co., Ltd. Method for molding hollow shaped bodies
JPH07148798A (en) * 1993-11-29 1995-06-13 Asahi Chem Ind Co Ltd Injection molded product, injection molding method and mold apparatus used therein
JPH0852753A (en) * 1994-08-12 1996-02-27 Mitsubishi Gas Chem Co Inc Method for injection-molding of molded article with hollow structure
JPH08118429A (en) * 1994-10-26 1996-05-14 Sekisui Chem Co Ltd Injection mold and injection-molded article

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN. 1995 - 9 [009] [07-139801/07-166998]. & JP 7148798 A (ASAHI CHEM IND CO LTD.) 13.06.1995 *
PATENT ABSTRACTS OF JAPAN. 1996 - 9 [0-17] [08-028501/08-056399]. & JP 8052753 A (MITSHUBISHI GAS CHEM CO INC) 27.02.1996 *
PATENT ABSTRACTS OF JAPAN. 1996 - 9 [020] [08-112001/08-140400]. & JP 8118429 A (SEKISUI CHEM CO LTD.) 14.05.1996 *

Also Published As

Publication number Publication date
KR100248773B1 (en) 2000-03-15
ES2149112B1 (en) 2001-05-01
KR19990033563A (en) 1999-05-15
CN1217250A (en) 1999-05-26
JPH11192645A (en) 1999-07-21

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