JPS5659001A - Weight-loaded accumulator - Google Patents
Weight-loaded accumulatorInfo
- Publication number
- JPS5659001A JPS5659001A JP13346379A JP13346379A JPS5659001A JP S5659001 A JPS5659001 A JP S5659001A JP 13346379 A JP13346379 A JP 13346379A JP 13346379 A JP13346379 A JP 13346379A JP S5659001 A JPS5659001 A JP S5659001A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- pressure
- weight
- liquid container
- cylinder
- 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
- Press Drives And Press Lines (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
PURPOSE: To facilitate the alteration of the pressure set value of a hydraulic press equipped with a weight-loaded accumulator, by providing the weight of the accumulator with a liquid container and a control mechanism for regulating the quantity of liquid in the cintainer.
CONSTITUTION: When a pump 29 is started to actuate a hydraulic press 41, liquid pressure is supplied to the cylinder 31 of the press 41 to elevate a ram 37 to apply pressure to a pressed object. At that time, liquid pressure is also supplied to a cylinder 43 to move down a plunger 47. As a result, a liquid container 60 is elevated through a transmission member 50 and engaged with a limit switch 61 by an engaging member 63 to stop the pump 29. In that state, the liquid container 60 pulls the plunger 47 by a constant tensile force to maintain the liquid pressure in the cylinder 31 at a set level. To alter this set level, a valve 71 or 73 in a control mechanism 74 is opened or closed to adjust the quantity of liquid in the liquid container 60.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13346379A JPS5659001A (en) | 1979-10-15 | 1979-10-15 | Weight-loaded accumulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13346379A JPS5659001A (en) | 1979-10-15 | 1979-10-15 | Weight-loaded accumulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5659001A true JPS5659001A (en) | 1981-05-22 |
Family
ID=15105365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13346379A Pending JPS5659001A (en) | 1979-10-15 | 1979-10-15 | Weight-loaded accumulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5659001A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2218171A1 (en) * | 2007-11-09 | 2010-08-18 | Vamco International, Inc. | Drive apparatus and method for a press machine |
-
1979
- 1979-10-15 JP JP13346379A patent/JPS5659001A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2218171A1 (en) * | 2007-11-09 | 2010-08-18 | Vamco International, Inc. | Drive apparatus and method for a press machine |
CN101911466A (en) * | 2007-11-09 | 2010-12-08 | 万科国际股份有限公司 | The driving arrangement and the method that are used for press machine |
EP2218171A4 (en) * | 2007-11-09 | 2012-03-21 | Vamco Int Inc | Drive apparatus and method for a press machine |
US10384412B2 (en) | 2007-11-09 | 2019-08-20 | Nidec Vamco Corporation | Drive apparatus and method for a press machine |
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