JPS56168953A - Injection hydraulic apparatus for injection molding machine - Google Patents
Injection hydraulic apparatus for injection molding machineInfo
- 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
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
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)
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 |
-
1980
- 1980-05-30 JP JP7222180A patent/JPS56168953A/en active Pending
Cited By (3)
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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