JPS6485718A - Manufacture of molded product made of thermoplastic elastomer resin - Google Patents

Manufacture of molded product made of thermoplastic elastomer resin

Info

Publication number
JPS6485718A
JPS6485718A JP62242465A JP24246587A JPS6485718A JP S6485718 A JPS6485718 A JP S6485718A JP 62242465 A JP62242465 A JP 62242465A JP 24246587 A JP24246587 A JP 24246587A JP S6485718 A JPS6485718 A JP S6485718A
Authority
JP
Japan
Prior art keywords
molded
mold
core
opening
injection
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.)
Pending
Application number
JP62242465A
Other languages
Japanese (ja)
Inventor
Shoji Yamamori
Original Assignee
Mitsubishi Monsanto Chem
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 Mitsubishi Monsanto Chem filed Critical Mitsubishi Monsanto Chem
Priority to JP62242465A priority Critical patent/JPS6485718A/en
Publication of JPS6485718A publication Critical patent/JPS6485718A/en
Pending 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
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2221/00Use of unspecified rubbers as reinforcement
    • B29K2221/003Thermoplastic elastomers

Abstract

PURPOSE:To obtain a molded product superior in an external appearance, by a method wherein a gate for molten resin is provided on the center of one end wall of the molded product of a cylindrical body, the same is once molded into a form of an uncompleted molded product not having an opening part on the one end wall with an injection molding method and then the title molded product is formed by striking out the opening part. CONSTITUTION:At the time of mold clamping, a nozzle of an injection molding machine is brought into contact with a sprue bushing 16 and molten thermoplastic elastomer resin is cast into a mold cavity part formed of female split molds 15A, 15B, a core 21 and a core insertion piece 27 under appropriate conditions. A form of a molded product IC in this instance is not in such a form where an end wall possesses the opening parts A, B like a final molded product, a gate 17 can be provided on the center part of the end wall 4. With this construction, a continuous molten resin flow where a weld line part does not generate can be obtained. After the resin injection into a mold cavity has been cooled and solidified, an injection mold is broken. When the molded product IC is shifted to a movable side under a state where the molded product IC is attached to the core 21, the same is separated from the female split molds 15A, 15B at the same time. The opening parts A, B are opened at necessary positions of the end wall 4 to the molded product IC released from the mold and a molded product 1A or 1B is obtained.
JP62242465A 1987-09-29 1987-09-29 Manufacture of molded product made of thermoplastic elastomer resin Pending JPS6485718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242465A JPS6485718A (en) 1987-09-29 1987-09-29 Manufacture of molded product made of thermoplastic elastomer resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242465A JPS6485718A (en) 1987-09-29 1987-09-29 Manufacture of molded product made of thermoplastic elastomer resin

Publications (1)

Publication Number Publication Date
JPS6485718A true JPS6485718A (en) 1989-03-30

Family

ID=17089486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242465A Pending JPS6485718A (en) 1987-09-29 1987-09-29 Manufacture of molded product made of thermoplastic elastomer resin

Country Status (1)

Country Link
JP (1) JPS6485718A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1156762A (en) * 1997-08-27 1999-03-02 Olympus Optical Co Ltd Flexible tube for endoscope
EP0985848A1 (en) * 1998-08-14 2000-03-15 Burford Trading Limited Stroke limitation spring assembly for a motor-vehicle suspension and method for manufacturing the same
JP2004025602A (en) * 2002-06-25 2004-01-29 Shain:Kk Method of manufacturing undercut molded product
KR100556578B1 (en) * 2002-09-30 2006-03-06 주식회사 림스텍 Molding apparatus of silicone article having air draw out structure
CN102729419A (en) * 2011-04-07 2012-10-17 江阴市农业药械厂 Air ejection device for bellows
CN103381649A (en) * 2013-06-28 2013-11-06 无锡麻德克斯精机有限公司 Injection mold of line wheel carrier of secondary coil
CN108698285A (en) * 2016-01-19 2018-10-23 哈佛学院院长及董事 Soft robot actuator and clamper

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1156762A (en) * 1997-08-27 1999-03-02 Olympus Optical Co Ltd Flexible tube for endoscope
EP0985848A1 (en) * 1998-08-14 2000-03-15 Burford Trading Limited Stroke limitation spring assembly for a motor-vehicle suspension and method for manufacturing the same
JP2004025602A (en) * 2002-06-25 2004-01-29 Shain:Kk Method of manufacturing undercut molded product
KR100556578B1 (en) * 2002-09-30 2006-03-06 주식회사 림스텍 Molding apparatus of silicone article having air draw out structure
CN102729419A (en) * 2011-04-07 2012-10-17 江阴市农业药械厂 Air ejection device for bellows
CN103381649A (en) * 2013-06-28 2013-11-06 无锡麻德克斯精机有限公司 Injection mold of line wheel carrier of secondary coil
CN108698285A (en) * 2016-01-19 2018-10-23 哈佛学院院长及董事 Soft robot actuator and clamper

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