JPS579304A - Pressure control circuit for pressure intensifier - Google Patents
Pressure control circuit for pressure intensifierInfo
- Publication number
- JPS579304A JPS579304A JP8246480A JP8246480A JPS579304A JP S579304 A JPS579304 A JP S579304A JP 8246480 A JP8246480 A JP 8246480A JP 8246480 A JP8246480 A JP 8246480A JP S579304 A JPS579304 A JP S579304A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- pipeline
- direction switch
- side chamber
- oil
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
- Control Of Presses (AREA)
Abstract
PURPOSE: To permit electric pressure-intensifying and reducing operations of a control circuit for a powder molding machine, etc., by only one pressure control valve of an electromagnetic proportion type by effectively operating stop valves.
CONSTITUTION: Stop valves 11 and 12 are each provided to a pipiline connecting the high-pressure side chamber 7 of a pressure intensifier 6 and a pressure oil discharge port 5 and also to a pipeline 10 connecting a low-pressure side chamber 8 and the discharge port 5. Also, a stop valve 14 leading to the chamber 7 and a direction switch valve 15 are connected to a pipeline 13 connecting the high-pressure side chamber 7 with an oil-pressure pump 4. And, cylinders 16W18 for opening and closing operations are each provided to these stop valves 11, 12, and 14, which are operated by direction switch pilot valves 19W21. Also, a direction switch valve 24 is provided to a pipeline 25 connecting a low-pressure side chamber 8 with the oil-pressure pump 4, and both direction switch valves 15 and 24 are connected with an oil tank 1 by a return circuit 26. And, an electromagnetic proportion-type pressure control valve 28 is provided to a pipeline 29 connecting the circuit 26 with a pressure oil discharge pipeline.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8246480A JPS579304A (en) | 1980-06-17 | 1980-06-17 | Pressure control circuit for pressure intensifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8246480A JPS579304A (en) | 1980-06-17 | 1980-06-17 | Pressure control circuit for pressure intensifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS579304A true JPS579304A (en) | 1982-01-18 |
Family
ID=13775224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8246480A Pending JPS579304A (en) | 1980-06-17 | 1980-06-17 | Pressure control circuit for pressure intensifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS579304A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6061200A (en) * | 1983-09-14 | 1985-04-08 | Amada Co Ltd | Method for controlling ram speed of press machine |
JPS60210244A (en) * | 1984-04-02 | 1985-10-22 | アロカ株式会社 | Ultrasonic transmitting receiving apparatus |
-
1980
- 1980-06-17 JP JP8246480A patent/JPS579304A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6061200A (en) * | 1983-09-14 | 1985-04-08 | Amada Co Ltd | Method for controlling ram speed of press machine |
JPH0343959B2 (en) * | 1983-09-14 | 1991-07-04 | Amada Co Ltd | |
JPS60210244A (en) * | 1984-04-02 | 1985-10-22 | アロカ株式会社 | Ultrasonic transmitting receiving apparatus |
JPH0247211B2 (en) * | 1984-04-02 | 1990-10-18 | Aloka |
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