JPS5515834A - Ring-shape product forming method - Google Patents

Ring-shape product forming method

Info

Publication number
JPS5515834A
JPS5515834A JP8869378A JP8869378A JPS5515834A JP S5515834 A JPS5515834 A JP S5515834A JP 8869378 A JP8869378 A JP 8869378A JP 8869378 A JP8869378 A JP 8869378A JP S5515834 A JPS5515834 A JP S5515834A
Authority
JP
Japan
Prior art keywords
runner
sub
cavity plate
cut
piece
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
JP8869378A
Other languages
Japanese (ja)
Other versions
JPS5829227B2 (en
Inventor
Mikio Toyoda
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.)
I Pex Inc
Original Assignee
Dai Ichi Seiko 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 Dai Ichi Seiko Co Ltd filed Critical Dai Ichi Seiko Co Ltd
Priority to JP53088693A priority Critical patent/JPS5829227B2/en
Publication of JPS5515834A publication Critical patent/JPS5515834A/en
Publication of JPS5829227B2 publication Critical patent/JPS5829227B2/en
Expired legal-status Critical Current

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
    • B29C45/38—Cutting-off equipment for sprues or ingates

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

PURPOSE: To eliminate processes of cutting and separating a sub-runner from a formed product by employing such a manufacturing step as to cut and separate a sub-runner from a product at a gate section and push the sub-runner and the product out of the system.
CONSTITUTION: When a metallic mold starts opening after completion of formation of resin, a space between a cavity plate 12 and a plate 21 is opened. As No.1 piece 16 and No.2 piece 20 move, a sub-runner 23 also moves at the same time. If the cavity plate 12 is securely fixed so as not to allow it to move during this period, the cavity plate 12 and the sub-runner 23 are cut off at a gate section 24. Further, when the metallic mold is opened, the No.2 spool is cut and separated from the sub-runner. Now, by shifting the cavity plate 12, opening a parting line PL and pushing an ejector pin 18, a disc-like resin is forcibly pushed out of the No. 1 piece, and then, it is taken out of the system.
COPYRIGHT: (C)1980,JPO&Japio
JP53088693A 1978-07-20 1978-07-20 Molding method for ring-shaped products Expired JPS5829227B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53088693A JPS5829227B2 (en) 1978-07-20 1978-07-20 Molding method for ring-shaped products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53088693A JPS5829227B2 (en) 1978-07-20 1978-07-20 Molding method for ring-shaped products

Publications (2)

Publication Number Publication Date
JPS5515834A true JPS5515834A (en) 1980-02-04
JPS5829227B2 JPS5829227B2 (en) 1983-06-21

Family

ID=13949915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53088693A Expired JPS5829227B2 (en) 1978-07-20 1978-07-20 Molding method for ring-shaped products

Country Status (1)

Country Link
JP (1) JPS5829227B2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55107440A (en) * 1979-02-14 1980-08-18 Hashimoto Seiki:Kk Molding method for plastic resin material
JPS5884748A (en) * 1981-11-13 1983-05-20 Hitachi Ltd Method of reaction injection molding and mold therefor
EP0210475A2 (en) * 1985-07-25 1987-02-04 Krauss-Maffei Aktiengesellschaft Method and apparatus for manufacturing an injection-moulded object
JPS6250114A (en) * 1985-08-29 1987-03-04 Zojirushi Vacuum Bottle Co Method of molding plastic
JPH0286054A (en) * 1988-09-20 1990-03-27 Sanyo Electric Co Ltd Manufacture of insulating gasket for battery
US7147814B1 (en) 1998-02-25 2006-12-12 Fuji Photo Film Co., Ltd. Injection molding method and injection mold
JP2007168342A (en) * 2005-12-26 2007-07-05 Hitachi Industrial Equipment Systems Co Ltd Die for mold-molding, mold-molding device, mold-molding method, and mold-molded article
CN101954723A (en) * 2010-10-08 2011-01-26 台州市黄岩西诺模具有限公司 Secondary ejecting mechanism of improved type invertedly-buckled bottle cap plastic injection mold
CN104339583A (en) * 2014-09-26 2015-02-11 无锡优萌模塑制造有限公司 Forming structure of injection moulding machine
JP2019093645A (en) * 2017-11-24 2019-06-20 Ntn株式会社 Manufacturing method of hollow disk-like thrust washer
JP2019123149A (en) * 2018-01-17 2019-07-25 Ntn株式会社 Thrust washer injection mold
JP2021016940A (en) * 2019-07-17 2021-02-15 Ntn株式会社 Injection molding die for synthetic resin flange bush

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110696305A (en) * 2019-09-10 2020-01-17 肇庆理士电源技术有限公司 Automatic water gap breaking device and ultrasonic welding method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140953A (en) * 1975-05-30 1976-12-04 Aron Kasei Kk Mold for injection molding thick article

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140953A (en) * 1975-05-30 1976-12-04 Aron Kasei Kk Mold for injection molding thick article

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55107440A (en) * 1979-02-14 1980-08-18 Hashimoto Seiki:Kk Molding method for plastic resin material
JPH0251727B2 (en) * 1981-11-13 1990-11-08 Hitachi Ltd
JPS5884748A (en) * 1981-11-13 1983-05-20 Hitachi Ltd Method of reaction injection molding and mold therefor
EP0210475A2 (en) * 1985-07-25 1987-02-04 Krauss-Maffei Aktiengesellschaft Method and apparatus for manufacturing an injection-moulded object
US4738613A (en) * 1985-07-25 1988-04-19 Krauss-Maffi A.G. Apparatus for the production of an injection molded part
JPS6250114A (en) * 1985-08-29 1987-03-04 Zojirushi Vacuum Bottle Co Method of molding plastic
JPH0511015B2 (en) * 1985-08-29 1993-02-12 Zojirushi Vacuum Bottle Co
JPH0286054A (en) * 1988-09-20 1990-03-27 Sanyo Electric Co Ltd Manufacture of insulating gasket for battery
US7147814B1 (en) 1998-02-25 2006-12-12 Fuji Photo Film Co., Ltd. Injection molding method and injection mold
JP2007168342A (en) * 2005-12-26 2007-07-05 Hitachi Industrial Equipment Systems Co Ltd Die for mold-molding, mold-molding device, mold-molding method, and mold-molded article
CN101954723A (en) * 2010-10-08 2011-01-26 台州市黄岩西诺模具有限公司 Secondary ejecting mechanism of improved type invertedly-buckled bottle cap plastic injection mold
CN104339583A (en) * 2014-09-26 2015-02-11 无锡优萌模塑制造有限公司 Forming structure of injection moulding machine
JP2019093645A (en) * 2017-11-24 2019-06-20 Ntn株式会社 Manufacturing method of hollow disk-like thrust washer
JP2019123149A (en) * 2018-01-17 2019-07-25 Ntn株式会社 Thrust washer injection mold
JP2021016940A (en) * 2019-07-17 2021-02-15 Ntn株式会社 Injection molding die for synthetic resin flange bush

Also Published As

Publication number Publication date
JPS5829227B2 (en) 1983-06-21

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