JPS574751A - Method and apparatus for molding cylindrical product - Google Patents

Method and apparatus for molding cylindrical product

Info

Publication number
JPS574751A
JPS574751A JP7846980A JP7846980A JPS574751A JP S574751 A JPS574751 A JP S574751A JP 7846980 A JP7846980 A JP 7846980A JP 7846980 A JP7846980 A JP 7846980A JP S574751 A JPS574751 A JP S574751A
Authority
JP
Japan
Prior art keywords
die
molding
core
opening
die body
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
JP7846980A
Other languages
Japanese (ja)
Other versions
JPS6030533B2 (en
Inventor
Yoshiyuki Sugita
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.)
Kojima Industries Corp
Original Assignee
Kojima Press Industry 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 Kojima Press Industry Co Ltd filed Critical Kojima Press Industry Co Ltd
Priority to JP7846980A priority Critical patent/JPS6030533B2/en
Publication of JPS574751A publication Critical patent/JPS574751A/en
Publication of JPS6030533B2 publication Critical patent/JPS6030533B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To withdraw a thin cylindrical molded product effectively without deformation by solidifying a molding resin in a cavity and opening a die slightly to form a fine clearance between the product and the die before the final die opening.
CONSTITUTION: After a melted resin is introduced into a cylindrical product cavity and molded by solidification, a core die body 12 is moved by a distance of a clearance H1 to the die opening to the die clamping. With an aid of an undercut, the core die body 12 is released while the molding M remains stuck on a cavity die body 2 whereby a clearance of H1 is produced between the molding M and the core die body 12. Then, as soon as the core die body 12 moves to the die opening, the inclined surface of a finger 20b hits against the inclined surface of a projection 2a and slides together so that a finger 20a is taken off clear. The die opening proceeds with the molding M on the core 12a.
COPYRIGHT: (C)1982,JPO&Japio
JP7846980A 1980-06-11 1980-06-11 Molding method and device for cylindrical molded products Expired JPS6030533B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7846980A JPS6030533B2 (en) 1980-06-11 1980-06-11 Molding method and device for cylindrical molded products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7846980A JPS6030533B2 (en) 1980-06-11 1980-06-11 Molding method and device for cylindrical molded products

Publications (2)

Publication Number Publication Date
JPS574751A true JPS574751A (en) 1982-01-11
JPS6030533B2 JPS6030533B2 (en) 1985-07-17

Family

ID=13662872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7846980A Expired JPS6030533B2 (en) 1980-06-11 1980-06-11 Molding method and device for cylindrical molded products

Country Status (1)

Country Link
JP (1) JPS6030533B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195817A (en) * 1985-02-27 1986-08-30 Nissei Plastics Ind Co Control process for projection of injection molding machine
JPS62185023U (en) * 1986-05-14 1987-11-25
JPH0245118A (en) * 1988-08-05 1990-02-15 Niigata Eng Co Ltd Method and apparatus for injection molding

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI405656B (en) * 2007-09-21 2013-08-21 Hon Hai Prec Ind Co Ltd Injection mold

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61195817A (en) * 1985-02-27 1986-08-30 Nissei Plastics Ind Co Control process for projection of injection molding machine
JPH0534134B2 (en) * 1985-02-27 1993-05-21 Nissei Plastics Ind Co
JPS62185023U (en) * 1986-05-14 1987-11-25
JPH0245118A (en) * 1988-08-05 1990-02-15 Niigata Eng Co Ltd Method and apparatus for injection molding

Also Published As

Publication number Publication date
JPS6030533B2 (en) 1985-07-17

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