JPH0343225A - Mold for injection molding - Google Patents

Mold for injection molding

Info

Publication number
JPH0343225A
JPH0343225A JP17723189A JP17723189A JPH0343225A JP H0343225 A JPH0343225 A JP H0343225A JP 17723189 A JP17723189 A JP 17723189A JP 17723189 A JP17723189 A JP 17723189A JP H0343225 A JPH0343225 A JP H0343225A
Authority
JP
Japan
Prior art keywords
plate
knockout
gate
moved
mold
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
JP17723189A
Other languages
Japanese (ja)
Other versions
JPH0643081B2 (en
Inventor
Fumio Ishimura
Shozo Motoyama
Original Assignee
Japan Steel Works Ltd:The
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 Japan Steel Works Ltd:The filed Critical Japan Steel Works Ltd:The
Priority to JP17723189A priority Critical patent/JPH0643081B2/en
Publication of JPH0343225A publication Critical patent/JPH0343225A/en
Publication of JPH0643081B2 publication Critical patent/JPH0643081B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To carry out gate cutting and eject by means of a knockout rod, eliminate the necessity of a hydraulic unit for gate cutting and secure the purity of a product by switching between the state of connecting a gate cutting component with the knockout plate side and the cut-off state.
CONSTITUTION: A movable side die 10 is brought into close contact with a fixed side mold 12, and molten resin in a cavity 14 is filled from an injection device through a spray 20 and a gate section 22. An electromagnetic actuator 46 is worked to project a plunger 48. The plunger 48 is fixed in a through-hole 50 to move a connecting plate 38 integrally with a knockout plate 24. The knockout plate 26 is moved forward and the knockout plate 24, a driving rod 32, the connecting plate 38 and a gate-cut sleeve 52 are moved to the right to carry out cutting of a gate section 22 of a molded product 16. The knockout plate 24 returns to the initial stopping position to release the connection of the driving rod 32 with the connecting plate 38. After mold opening, the knockout rod 26 is moved to the right, and a sprue knockout pin 34 pushes a sprue section 36.
COPYRIGHT: (C)1991,JPO&Japio
JP17723189A 1989-07-11 1989-07-11 Injection mold Expired - Lifetime JPH0643081B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17723189A JPH0643081B2 (en) 1989-07-11 1989-07-11 Injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17723189A JPH0643081B2 (en) 1989-07-11 1989-07-11 Injection mold

Publications (2)

Publication Number Publication Date
JPH0343225A true JPH0343225A (en) 1991-02-25
JPH0643081B2 JPH0643081B2 (en) 1994-06-08

Family

ID=16027446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17723189A Expired - Lifetime JPH0643081B2 (en) 1989-07-11 1989-07-11 Injection mold

Country Status (1)

Country Link
JP (1) JPH0643081B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439368A (en) * 1992-07-27 1995-08-08 Master Unit Die Products, Inc. Knockout rod assembly for mold
EP1203919A1 (en) * 2000-11-03 2002-05-08 Leco Corporation Sample introduction assembly
CN106064455A (en) * 2016-08-24 2016-11-02 北京灵铱科技有限公司 A kind of 2 ejecting structures of application on plastic mould

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439368A (en) * 1992-07-27 1995-08-08 Master Unit Die Products, Inc. Knockout rod assembly for mold
EP1203919A1 (en) * 2000-11-03 2002-05-08 Leco Corporation Sample introduction assembly
CN106064455A (en) * 2016-08-24 2016-11-02 北京灵铱科技有限公司 A kind of 2 ejecting structures of application on plastic mould

Also Published As

Publication number Publication date
JPH0643081B2 (en) 1994-06-08

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