JPS574753A - Withdrawing device for molding in injection molding machine - Google Patents
Withdrawing device for molding in injection molding machineInfo
- Publication number
- JPS574753A JPS574753A JP7987780A JP7987780A JPS574753A JP S574753 A JPS574753 A JP S574753A JP 7987780 A JP7987780 A JP 7987780A JP 7987780 A JP7987780 A JP 7987780A JP S574753 A JPS574753 A JP 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
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7987780A JPS574753A (en) | 1980-06-12 | 1980-06-12 | Withdrawing device for molding in injection molding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7987780A JPS574753A (en) | 1980-06-12 | 1980-06-12 | Withdrawing device for molding in injection molding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS574753A true JPS574753A (en) | 1982-01-11 |
JPS639967B2 JPS639967B2 (en) | 1988-03-03 |
Family
ID=13702453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7987780A Granted JPS574753A (en) | 1980-06-12 | 1980-06-12 | Withdrawing device for molding in injection molding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS574753A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0331521U (en) * | 1989-07-31 | 1991-03-27 | ||
JP2009124081A (en) * | 2007-11-19 | 2009-06-04 | Sii Nanotechnology Inc | Wafer earth mechanism and sample manufacturing device |
JP2010083033A (en) * | 2008-09-30 | 2010-04-15 | Technocrats Corp | Undercut processing mechanism |
CN101811354A (en) * | 2010-05-24 | 2010-08-25 | 王洪彪 | Assembled mould structure with self-contained sliding core power |
JP2014172378A (en) * | 2013-03-12 | 2014-09-22 | Technocrats Corp | Undercut treatment mechanism |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4938679A (en) * | 1989-05-18 | 1990-07-03 | Cores Unlimited, A Partnership | Collapsible core for molding closures having interrupted interior threads and the like |
JPH06277172A (en) * | 1993-03-24 | 1994-10-04 | Clean Tex Japan Kk | Dust control mat |
-
1980
- 1980-06-12 JP JP7987780A patent/JPS574753A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0331521U (en) * | 1989-07-31 | 1991-03-27 | ||
JP2009124081A (en) * | 2007-11-19 | 2009-06-04 | Sii Nanotechnology Inc | Wafer earth mechanism and sample manufacturing device |
JP2010083033A (en) * | 2008-09-30 | 2010-04-15 | Technocrats Corp | Undercut processing mechanism |
CN101811354A (en) * | 2010-05-24 | 2010-08-25 | 王洪彪 | Assembled mould structure with self-contained sliding core power |
JP2014172378A (en) * | 2013-03-12 | 2014-09-22 | Technocrats Corp | Undercut treatment mechanism |
Also Published As
Publication number | Publication date |
---|---|
JPS639967B2 (en) | 1988-03-03 |
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