JPS54123670A - Fluid control circuit - Google Patents
Fluid control circuitInfo
- Publication number
- JPS54123670A JPS54123670A JP3144178A JP3144178A JPS54123670A JP S54123670 A JPS54123670 A JP S54123670A JP 3144178 A JP3144178 A JP 3144178A JP 3144178 A JP3144178 A JP 3144178A JP S54123670 A JPS54123670 A JP S54123670A
- Authority
- JP
- Japan
- Prior art keywords
- work
- ram
- oil
- switched
- rod
- 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
Abstract
PURPOSE: To perform necessary hydraulic operation purely in the operation of a pressing machine by a fluid control circuit adapted for the machine.
CONSTITUTION: When an electromagnetic directional control valve 4 is switched to left position, hydraulic oil from a variable pump 1 is supplied to the left chamber of an actuator 6 and hydraulic oil from the right chamber is returned through a directional control valve 5 into a tank 30b to finally approach a ram to the vicinity of a work W to be formed at high speed. When the valve 5 is then switched by a cam 40 to allow the oil in the right chamber to pass through a flow control unit 36, the ram is decelerated immediately before making contact with the work W. When the ram and accordingly the rod 6a makes contact with the work W, the pressure of a main line 28 is increased to press the work W. When the spool 14 is moved rightwardly upon increase of the pressure, the discharged oil from the pump 1 is partially introduced into a control cylinder 11 as designated by a broken line with an arrow, and the rod 6a is stopped at the end.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3144178A JPS54123670A (en) | 1978-03-17 | 1978-03-17 | Fluid control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3144178A JPS54123670A (en) | 1978-03-17 | 1978-03-17 | Fluid control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54123670A true JPS54123670A (en) | 1979-09-26 |
JPS613961B2 JPS613961B2 (en) | 1986-02-06 |
Family
ID=12331321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3144178A Granted JPS54123670A (en) | 1978-03-17 | 1978-03-17 | Fluid control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54123670A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61108045A (en) * | 1984-11-01 | 1986-05-26 | Nippon Denso Co Ltd | Antiskid controller |
US5984469A (en) * | 1993-12-30 | 1999-11-16 | Canon Kabushiki Kaisha | Recording apparatus |
CN103817969A (en) * | 2014-02-14 | 2014-05-28 | 常山县普路米液压机械有限公司 | Full-automatic horizontal hydraulic oil press |
-
1978
- 1978-03-17 JP JP3144178A patent/JPS54123670A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61108045A (en) * | 1984-11-01 | 1986-05-26 | Nippon Denso Co Ltd | Antiskid controller |
JPH069955B2 (en) * | 1984-11-01 | 1994-02-09 | 日本電装株式会社 | Anti-skidding control device |
US5984469A (en) * | 1993-12-30 | 1999-11-16 | Canon Kabushiki Kaisha | Recording apparatus |
CN103817969A (en) * | 2014-02-14 | 2014-05-28 | 常山县普路米液压机械有限公司 | Full-automatic horizontal hydraulic oil press |
Also Published As
Publication number | Publication date |
---|---|
JPS613961B2 (en) | 1986-02-06 |
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