JPS566732A - Edge bending device of steel plate - Google Patents

Edge bending device of steel plate

Info

Publication number
JPS566732A
JPS566732A JP8132579A JP8132579A JPS566732A JP S566732 A JPS566732 A JP S566732A JP 8132579 A JP8132579 A JP 8132579A JP 8132579 A JP8132579 A JP 8132579A JP S566732 A JPS566732 A JP S566732A
Authority
JP
Japan
Prior art keywords
steel plate
spring
working end
working
edge
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
JP8132579A
Other languages
Japanese (ja)
Inventor
Koji Sakurai
Takahiro Sekine
Nobumasa Okazaki
Mitsugi Okada
Naohiro 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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP8132579A priority Critical patent/JPS566732A/en
Publication of JPS566732A publication Critical patent/JPS566732A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: To prevent spring-up stress from acting upon a steel pipe during its working and make working efficiency higher by disposing a pinch-roll device which sandwiches the counter-working end of the steel plate and an elevating device for the above-mentioned device which follows up the spring-up of the working end, on one side of an edge-bending press.
CONSTITUTION: A device 2 provided with a pair of upper and lower pinch rolls 21, 22 sandwiching the portion of a steel plate for production of steel pipes near its counter-working end in order to feed the above-mentioned steel plate being carried by way of a roller table 6 and a squeeze device 7 is disposed on one side of an edge-bending press 1 for said steel plate. An auxiliary transfer roll device 3 which ascends to the pass line at the charging of the steel pipe and sinks downward during pressing as well as an elevating device 4 which elevates the device 2 so as to prevent the stress by spring-up from acting upon the steel pipe by following up the spring-up of the counter-working end during pressing are disposed between the device 2 and the dies 11, 12 of the press 1. As a result, there is no need for carrying out the positioning of the steel plate each time and the improvement in working efficiency and edge-bending efficiency is made possible.
COPYRIGHT: (C)1981,JPO&Japio
JP8132579A 1979-06-29 1979-06-29 Edge bending device of steel plate Pending JPS566732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8132579A JPS566732A (en) 1979-06-29 1979-06-29 Edge bending device of steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8132579A JPS566732A (en) 1979-06-29 1979-06-29 Edge bending device of steel plate

Publications (1)

Publication Number Publication Date
JPS566732A true JPS566732A (en) 1981-01-23

Family

ID=13743232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8132579A Pending JPS566732A (en) 1979-06-29 1979-06-29 Edge bending device of steel plate

Country Status (1)

Country Link
JP (1) JPS566732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0391310A (en) * 1989-09-04 1991-04-16 Japan Radio Co Ltd Surface acoustic wave filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0391310A (en) * 1989-09-04 1991-04-16 Japan Radio Co Ltd Surface acoustic wave filter

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