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JPS574753A - Withdrawing device for molding in injection molding machine - Google Patents

Withdrawing device for molding in injection molding machine

Info

Publication number
JPS574753A
JPS574753AJP7987780AJP7987780AJPS574753AJP S574753 AJPS574753 AJP S574753AJP 7987780 AJP7987780 AJP 7987780AJP 7987780 AJP7987780 AJP 7987780AJP S574753 AJPS574753 AJP S574753A
Authority
JP
Japan
Prior art keywords
cavity block
die
molding
guided
knock pin
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
JP7987780A
Other languages
Japanese (ja)
Other versions
JPS639967B2 (en
Inventor
Akira Sugiyama
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.)
Sanjo Seiki Seisakusho KK
Original Assignee
Sanjo Seiki Seisakusho KK
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 Sanjo Seiki Seisakusho KKfiledCriticalSanjo Seiki Seisakusho KK
Priority to JP7987780ApriorityCriticalpatent/JPS574753A/en
Publication of JPS574753ApublicationCriticalpatent/JPS574753A/en
Publication of JPS639967B2publicationCriticalpatent/JPS639967B2/ja
Grantedlegal-statusCriticalCurrent

Links

Landscapes

Abstract

PURPOSE: To enable the opening or closing of a cavity block without requiring exclusive driving source by arranging a cavity block return rod having a knock pin and a compression return spring for each division unit of the cavity block.
CONSTITUTION: In the die opening, after the lifting of an upper die 1, upon the thrust of an injector turbine 23, a knock pin 16 moves up through a carriage 21 to push up a cavity block 11. The cavity block 11 slides upward and outward with the outer surface 12 being guided by the conical inner surface 6a of a conical recess 6 on a lower die 2 while the inner surface 13 thereof is being guided by a triangular- pyramid-shaped guide projection 8, and divided into division units 11a, 11b and 11c so as to be opened separately in three directions. Meanwhile the molding 4 is separated from a core 3 and simultaneously from the cavity block 11. Thus, it is pulled out of the die.
COPYRIGHT: (C)1982,JPO&Japio
JP7987780A1980-06-121980-06-12Withdrawing device for molding in injection molding machineGrantedJPS574753A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP7987780AJPS574753A (en)1980-06-121980-06-12Withdrawing device for molding in injection molding machine

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP7987780AJPS574753A (en)1980-06-121980-06-12Withdrawing device for molding in injection molding machine

Publications (2)

Publication NumberPublication Date
JPS574753Atrue JPS574753A (en)1982-01-11
JPS639967B2 JPS639967B2 (en)1988-03-03

Family

ID=13702453

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP7987780AGrantedJPS574753A (en)1980-06-121980-06-12Withdrawing device for molding in injection molding machine

Country Status (1)

CountryLink
JP (1)JPS574753A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPH0331521U (en)*1989-07-311991-03-27
JP2009124081A (en)*2007-11-192009-06-04Sii Nanotechnology Inc Wafer earth mechanism and sample preparation apparatus
JP2010083033A (en)*2008-09-302010-04-15Technocrats CorpUndercut processing mechanism
CN101811354A (en)*2010-05-242010-08-25王洪彪Assembled mould structure with self-contained sliding core power
JP2014172378A (en)*2013-03-122014-09-22Technocrats CorpUndercut treatment mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4938679A (en)*1989-05-181990-07-03Cores Unlimited, A PartnershipCollapsible core for molding closures having interrupted interior threads and the like
JPH06277172A (en)*1993-03-241994-10-04Clean Tex Japan KkDust control mat

Cited By (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPH0331521U (en)*1989-07-311991-03-27
JP2009124081A (en)*2007-11-192009-06-04Sii Nanotechnology Inc Wafer earth mechanism and sample preparation apparatus
JP2010083033A (en)*2008-09-302010-04-15Technocrats CorpUndercut processing mechanism
CN101811354A (en)*2010-05-242010-08-25王洪彪Assembled mould structure with self-contained sliding core power
CN101811354B (en)2010-05-242012-07-25王洪彪Assembled mould structure with self-contained sliding core power
JP2014172378A (en)*2013-03-122014-09-22Technocrats CorpUndercut treatment mechanism

Also Published As

Publication numberPublication date
JPS639967B2 (en)1988-03-03

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