JPS5634418A - Releasing method for molded article and molding die - Google Patents

Releasing method for molded article and molding die

Info

Publication number
JPS5634418A
JPS5634418A JP11195279A JP11195279A JPS5634418A JP S5634418 A JPS5634418 A JP S5634418A JP 11195279 A JP11195279 A JP 11195279A JP 11195279 A JP11195279 A JP 11195279A JP S5634418 A JPS5634418 A JP S5634418A
Authority
JP
Japan
Prior art keywords
die
molded article
slide core
released
core
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
JP11195279A
Other languages
Japanese (ja)
Other versions
JPS5917932B2 (en
Inventor
Osamu Nishimura
Sadashi Shimobayashi
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.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei 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 Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP11195279A priority Critical patent/JPS5917932B2/en
Publication of JPS5634418A publication Critical patent/JPS5634418A/en
Publication of JPS5917932B2 publication Critical patent/JPS5917932B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To release a molded article smoothly and surely by a method wherein a slide core engaged with the undercut part of the molded article and a movable die are moved in the direction of die opening and then the slide core is expanded and opened by an angular pin.
CONSTITUTION: A molding material is injected into a cavity 18 through a sprue gate 19 and molded, thus a molded article A with an undercut part (a) being obtained. Next, a movable die 16 is moved in the direction of die opening, while a slide core 17 being pushed out by a required distance V by means of a push pin 20 energized by a coil spring 21, and thus the molded article A is released from a fixed die 15. Then, after the die 16 is further moved in the direction of die opening and the core part 16a of the die 16 is released from the article A, the slide core 17 is expanded and opened by making an angular pin 22 touch the outward inner wall of a slant hole 23, thereby the molded article A being released from the slide core 17 and the core part of a fixed die 3.
COPYRIGHT: (C)1981,JPO&Japio
JP11195279A 1979-08-31 1979-08-31 Mold release method and molding mold for molded products Expired JPS5917932B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11195279A JPS5917932B2 (en) 1979-08-31 1979-08-31 Mold release method and molding mold for molded products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11195279A JPS5917932B2 (en) 1979-08-31 1979-08-31 Mold release method and molding mold for molded products

Publications (2)

Publication Number Publication Date
JPS5634418A true JPS5634418A (en) 1981-04-06
JPS5917932B2 JPS5917932B2 (en) 1984-04-24

Family

ID=14574260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11195279A Expired JPS5917932B2 (en) 1979-08-31 1979-08-31 Mold release method and molding mold for molded products

Country Status (1)

Country Link
JP (1) JPS5917932B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160123U (en) * 1982-04-22 1983-10-25 豊田合成株式会社 Molding mold with sliding core
JPS59115135A (en) * 1982-12-18 1984-07-03 Toyoda Mach Works Ltd Elastic ring installation apparatus
US5536161A (en) * 1993-11-05 1996-07-16 North America Packaging Corporation Double lock pail mold

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160123U (en) * 1982-04-22 1983-10-25 豊田合成株式会社 Molding mold with sliding core
JPS59115135A (en) * 1982-12-18 1984-07-03 Toyoda Mach Works Ltd Elastic ring installation apparatus
JPH028851B2 (en) * 1982-12-18 1990-02-27 Toyoda Machine Works Ltd
US5536161A (en) * 1993-11-05 1996-07-16 North America Packaging Corporation Double lock pail mold

Also Published As

Publication number Publication date
JPS5917932B2 (en) 1984-04-24

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