JPS56168953A - Injection hydraulic apparatus for injection molding machine - Google Patents

Injection hydraulic apparatus for injection molding machine

Info

Publication number
JPS56168953A
JPS56168953A JP7222180A JP7222180A JPS56168953A JP S56168953 A JPS56168953 A JP S56168953A JP 7222180 A JP7222180 A JP 7222180A JP 7222180 A JP7222180 A JP 7222180A JP S56168953 A JPS56168953 A JP S56168953A
Authority
JP
Japan
Prior art keywords
accumulator
injection
gas
working liquid
molding machine
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.)
Pending
Application number
JP7222180A
Other languages
Japanese (ja)
Inventor
Mitsuru Mitamura
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP7222180A priority Critical patent/JPS56168953A/en
Publication of JPS56168953A publication Critical patent/JPS56168953A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify an injection hydraulic circuit by installing an accumulator having a piston in the injection circuit and connecting its lower part to an injection cylinder and its upper part to the accumulator used exclusively for gas.
CONSTITUTION: The upper end of an accumulator 3 is connected to the upper end of an accumulator 14 used exclusively for gas through a stop valve 16 and a gas tube circuit 18. The gas accumulator 14 is connected to a nitrogen gas compressor 19. The lower end is connected to an injection cylinder 1 through a pilot check valve 6 and a solenoid changeover valve 7. When the working liquid in the accumulator 3 is consumed, the liquid is refilled from a working liquid tank 12 by a pump 9 through a stop valve 4. By this way, it becomes unnecessary to pack nitrogen gas by putting the working liquid into the bottom of the gas accumulator 14.
COPYRIGHT: (C)1981,JPO&Japio
JP7222180A 1980-05-30 1980-05-30 Injection hydraulic apparatus for injection molding machine Pending JPS56168953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7222180A JPS56168953A (en) 1980-05-30 1980-05-30 Injection hydraulic apparatus for injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7222180A JPS56168953A (en) 1980-05-30 1980-05-30 Injection hydraulic apparatus for injection molding machine

Publications (1)

Publication Number Publication Date
JPS56168953A true JPS56168953A (en) 1981-12-25

Family

ID=13482968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7222180A Pending JPS56168953A (en) 1980-05-30 1980-05-30 Injection hydraulic apparatus for injection molding machine

Country Status (1)

Country Link
JP (1) JPS56168953A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60232917A (en) * 1984-04-11 1985-11-19 Hitachi Ltd Resin molding device
KR20040013033A (en) * 2004-01-09 2004-02-11 (주)하이드로 메틱스 Oil compressure device for driving gas valve with several oil pressure accumulators and cylinders

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60232917A (en) * 1984-04-11 1985-11-19 Hitachi Ltd Resin molding device
JPH0548166B2 (en) * 1984-04-11 1993-07-20 Hitachi Ltd
KR20040013033A (en) * 2004-01-09 2004-02-11 (주)하이드로 메틱스 Oil compressure device for driving gas valve with several oil pressure accumulators and cylinders

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