JPS5659001A - Weight-loaded accumulator - Google Patents

Weight-loaded accumulator

Info

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
Application number
JP13346379A
Other languages
Japanese (ja)
Inventor
Kazunori Uchida
Masao Suzuki
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP13346379A priority Critical patent/JPS5659001A/en
Publication of JPS5659001A publication Critical patent/JPS5659001A/en
Pending legal-status Critical Current

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
JP13346379A 1979-10-15 1979-10-15 Weight-loaded accumulator Pending JPS5659001A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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