JPS57124600A - High pressure oil hydraulic press - Google Patents

High pressure oil hydraulic press

Info

Publication number
JPS57124600A
JPS57124600A JP1199481A JP1199481A JPS57124600A JP S57124600 A JPS57124600 A JP S57124600A JP 1199481 A JP1199481 A JP 1199481A JP 1199481 A JP1199481 A JP 1199481A JP S57124600 A JPS57124600 A JP S57124600A
Authority
JP
Japan
Prior art keywords
chamber
oil
piping
low pressure
pressure 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.)
Granted
Application number
JP1199481A
Other languages
Japanese (ja)
Other versions
JPS6025240B2 (en
Inventor
Tadashi Goto
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.)
GOTO TEKKOSHO KK
GOTOU TEKKOSHO KK
Original Assignee
GOTO TEKKOSHO KK
GOTOU TEKKOSHO KK
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 GOTO TEKKOSHO KK, GOTOU TEKKOSHO KK filed Critical GOTO TEKKOSHO KK
Priority to JP1199481A priority Critical patent/JPS6025240B2/en
Publication of JPS57124600A publication Critical patent/JPS57124600A/en
Publication of JPS6025240B2 publication Critical patent/JPS6025240B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/161—Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

PURPOSE:To make a titled device simple and compact and to obtain high pressing force by so constituting the device that the leading end of a piston shaft of a boosting cylinder is projected into a main pressurizing chamber via an oil feed chamber and is brought into abutment with the top surface of a main ram. CONSTITUTION:Low pressure oil is fed to the piping 4 of sub-cylinders 3, 3 and a pressurizing plate 2 is lowered quickly to mate a male die fitted to the plate 2 with a female die. At this time, negative pressure is developed in a main pressurizing chamber 8, and a surge valve 12 opens, so that the oil in an auxiliary oil tank 9 is sucked in to the chamber 8. Next, when low pressure oil is supplied from a piping 2, a boosting piston 21 is lowered, and the leading end part of a piston shaft 23 projects into the chamber 8, thereby pressurizing the inside of the chamber 8 and screwing down a main ram 7 under high pressure. The work is thereby pressurized and molded. Upon completion of the molding, the low pressure oil is fed through a piping 19 into an oil hydraulic working chamber 18, which in turn opens a valve 12 to feed the low pressure oil to a piping 5 and to return the oil in the chamber 8 into the tank 9. At the same time, the shaft 23 abouts on the top face of the ram 7, and is moved upward until it returns to the home position.
JP1199481A 1981-01-28 1981-01-28 High pressure hydraulic press equipment Expired JPS6025240B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1199481A JPS6025240B2 (en) 1981-01-28 1981-01-28 High pressure hydraulic press equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1199481A JPS6025240B2 (en) 1981-01-28 1981-01-28 High pressure hydraulic press equipment

Publications (2)

Publication Number Publication Date
JPS57124600A true JPS57124600A (en) 1982-08-03
JPS6025240B2 JPS6025240B2 (en) 1985-06-17

Family

ID=11793129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1199481A Expired JPS6025240B2 (en) 1981-01-28 1981-01-28 High pressure hydraulic press equipment

Country Status (1)

Country Link
JP (1) JPS6025240B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0501596A2 (en) * 1991-02-28 1992-09-02 MANNESMANN Aktiengesellschaft Hydraulic press for materials in powder form

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0501596A2 (en) * 1991-02-28 1992-09-02 MANNESMANN Aktiengesellschaft Hydraulic press for materials in powder form

Also Published As

Publication number Publication date
JPS6025240B2 (en) 1985-06-17

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