JPS55117599A - Preventing method for double pressing of press - Google Patents

Preventing method for double pressing of press

Info

Publication number
JPS55117599A
JPS55117599A JP2414079A JP2414079A JPS55117599A JP S55117599 A JPS55117599 A JP S55117599A JP 2414079 A JP2414079 A JP 2414079A JP 2414079 A JP2414079 A JP 2414079A JP S55117599 A JPS55117599 A JP S55117599A
Authority
JP
Japan
Prior art keywords
press
dies
lower die
work
free area
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
JP2414079A
Other languages
Japanese (ja)
Other versions
JPS568720B2 (en
Inventor
Yoshiaki Terajima
Koji Oishi
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.)
Suzuki Motor Corp
Kawasaki Hydromechanics Corp
Original Assignee
Suzuki Motor Corp
Kawasaki Hydromechanics 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 Suzuki Motor Corp, Kawasaki Hydromechanics Corp filed Critical Suzuki Motor Corp
Priority to JP2414079A priority Critical patent/JPS55117599A/en
Publication of JPS55117599A publication Critical patent/JPS55117599A/en
Publication of JPS568720B2 publication Critical patent/JPS568720B2/ja
Granted 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
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • B30B15/285—Arrangements for preventing distortion of, or damage to, presses or parts thereof preventing a full press stroke if there is an obstruction in the working area

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)

Abstract

PURPOSE:To prevent damaging of dies by dividing the moving region of the press dies to a free area and a press working area and stopping the press work when abnormal pressure acts upon the press dies in the free area. CONSTITUTION:When the press work is in a normal state, a lower die 2 ascends in the free area A3 while receiving low oil pressure. When it reaches the position P3, it ascends in the press working area A2 while receiving high oil pressure by the changeover command of a limit switch S3. If foreign matter 4 interposes in addition to the work 3, the hydraulic circuit becomes abnormally high in pressure before the lower die 2 reaches the position P3 and therefore a solenoid valve is operated to cut off the oil feed to the hydraulic circuit. Thereby, the press work of the lower die 2 is automatically stopped and the damaging accident of the dies may be prevented.
JP2414079A 1979-03-01 1979-03-01 Preventing method for double pressing of press Granted JPS55117599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2414079A JPS55117599A (en) 1979-03-01 1979-03-01 Preventing method for double pressing of press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2414079A JPS55117599A (en) 1979-03-01 1979-03-01 Preventing method for double pressing of press

Publications (2)

Publication Number Publication Date
JPS55117599A true JPS55117599A (en) 1980-09-09
JPS568720B2 JPS568720B2 (en) 1981-02-25

Family

ID=12130007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2414079A Granted JPS55117599A (en) 1979-03-01 1979-03-01 Preventing method for double pressing of press

Country Status (1)

Country Link
JP (1) JPS55117599A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014113620A (en) * 2012-12-10 2014-06-26 Calsonic Kansei Corp Press molding apparatus
EP3575010A3 (en) * 2018-05-28 2019-12-18 Aida Engineering Ltd. Double-blank detecting apparatus for press machine and die protecting apparatus for press machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136512U (en) * 1982-03-10 1983-09-13 日本電信電話株式会社 Concrete block for masonry
JPH0436323Y2 (en) * 1986-08-12 1992-08-27
JPH0633108Y2 (en) * 1988-07-05 1994-08-31 馨 二宮 Weirboard for concrete formwork

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014113620A (en) * 2012-12-10 2014-06-26 Calsonic Kansei Corp Press molding apparatus
EP3575010A3 (en) * 2018-05-28 2019-12-18 Aida Engineering Ltd. Double-blank detecting apparatus for press machine and die protecting apparatus for press machine
US11400506B2 (en) 2018-05-28 2022-08-02 Aida Engineering, Ltd. Double-blank detecting apparatus for press machine and die protecting apparatus for press machine

Also Published As

Publication number Publication date
JPS568720B2 (en) 1981-02-25

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