JPS5641022A - Holder for material of press brake - Google Patents

Holder for material of press brake

Info

Publication number
JPS5641022A
JPS5641022A JP11706479A JP11706479A JPS5641022A JP S5641022 A JPS5641022 A JP S5641022A JP 11706479 A JP11706479 A JP 11706479A JP 11706479 A JP11706479 A JP 11706479A JP S5641022 A JPS5641022 A JP S5641022A
Authority
JP
Japan
Prior art keywords
oil
work
electromagnet
steel sheet
returns
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
JP11706479A
Other languages
Japanese (ja)
Inventor
Seiichi Ida
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry Ltd
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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP11706479A priority Critical patent/JPS5641022A/en
Publication of JPS5641022A publication Critical patent/JPS5641022A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0281—Workpiece supporting devices

Abstract

PURPOSE:To softly return the material after being worked, and to prevent generation of the noise and deformation of the steel sheet, by utilizing the slowly returning oil through the throttle valve after the work is finished. CONSTITUTION:The edge of the unworked material 3' is bent to finish the work material 3. Hereupon, the electromagnet 5 works as sticking on the back face of the steel sheet, the links 7, 8, move following to the work material 3, the hydraulic cylinder 9 is actuated to extend its rod, the oil of the oil chamber returns to the oil tank 12, and the oil is sucked into the lower room through the check valve 13. When the work is finished and the press brake forming die 1 separates from the female die 2, the electromagnet 5 as sticking on the back face of the steel sheet returns to the table 4 according to the weight of the work material 3. The oil of the lower room of the hydraulic cylinder 9 is slowly sent to the oil tank 12 through the throttle valve 14; therefore, the electromagnet 5 also slowly returns to the position of the table 4.
JP11706479A 1979-09-11 1979-09-11 Holder for material of press brake Pending JPS5641022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11706479A JPS5641022A (en) 1979-09-11 1979-09-11 Holder for material of press brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11706479A JPS5641022A (en) 1979-09-11 1979-09-11 Holder for material of press brake

Publications (1)

Publication Number Publication Date
JPS5641022A true JPS5641022A (en) 1981-04-17

Family

ID=14702523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11706479A Pending JPS5641022A (en) 1979-09-11 1979-09-11 Holder for material of press brake

Country Status (1)

Country Link
JP (1) JPS5641022A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161055A (en) * 1984-11-27 1986-07-21 ブリテイシユ・テレコミユニケーシヨンズ・パブリツク・リミテツド・カンパニ Digital reproducer/repeater
DE3729808A1 (en) * 1986-09-05 1988-05-05 Oki Electric Ind Co Ltd WORKPIECE FOLLOWING DEVICE AND WORKPIECE FOLLOWING METHOD
CN101869936A (en) * 2010-06-23 2010-10-27 爱克(苏州)机械有限公司 Front carrier device for bending machine
CN105107890A (en) * 2015-09-15 2015-12-02 许继电气股份有限公司 Overturning device, feeding device employing overturning device and bending system employing overturning device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161055A (en) * 1984-11-27 1986-07-21 ブリテイシユ・テレコミユニケーシヨンズ・パブリツク・リミテツド・カンパニ Digital reproducer/repeater
DE3729808A1 (en) * 1986-09-05 1988-05-05 Oki Electric Ind Co Ltd WORKPIECE FOLLOWING DEVICE AND WORKPIECE FOLLOWING METHOD
US4805439A (en) * 1986-09-05 1989-02-21 Oki Electric Industry Co., Ltd. Work following apparatus and method for press working
DE3729808C2 (en) * 1986-09-05 1995-06-14 Oki Electric Ind Co Ltd Follow-up device for a metal sheet on a press brake
CN101869936A (en) * 2010-06-23 2010-10-27 爱克(苏州)机械有限公司 Front carrier device for bending machine
CN105107890A (en) * 2015-09-15 2015-12-02 许继电气股份有限公司 Overturning device, feeding device employing overturning device and bending system employing overturning device

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