JPS56114530A - End bending method of sheet steel at producing of uoe sheet pipe - Google Patents

End bending method of sheet steel at producing of uoe sheet pipe

Info

Publication number
JPS56114530A
JPS56114530A JP1601080A JP1601080A JPS56114530A JP S56114530 A JPS56114530 A JP S56114530A JP 1601080 A JP1601080 A JP 1601080A JP 1601080 A JP1601080 A JP 1601080A JP S56114530 A JPS56114530 A JP S56114530A
Authority
JP
Japan
Prior art keywords
sheet steel
die
side edge
bending
sheet
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
JP1601080A
Other languages
Japanese (ja)
Other versions
JPS5949096B2 (en
Inventor
Yutaka Mihara
Tomoshige Shiyudo
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 JP55016010A priority Critical patent/JPS5949096B2/en
Priority to US06/233,824 priority patent/US4430872A/en
Priority to CA000370732A priority patent/CA1167361A/en
Priority to FR8102827A priority patent/FR2475945B1/en
Priority to DE3105351A priority patent/DE3105351C2/en
Priority to IT19793/81A priority patent/IT1135494B/en
Publication of JPS56114530A publication Critical patent/JPS56114530A/en
Publication of JPS5949096B2 publication Critical patent/JPS5949096B2/en
Expired 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
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: To perform end bending efficiently without requiring large pressing force by bending the side edge of a sheet steel by rotatively operating a concave die.
CONSTITUTION: When the side edge 3' of a sheet steel 3 positions right under a convex die 12, the sheet steel 3 is grasped by means of clamping devices 101, 102 and the sheet steel 3 is supported at a constant height position. In this state, a lifting device 17 ascends and lifts the end operating part 16 of a bed member 14, by which a concave die 13 is turned upward around the fulcrum part 15 which is on the side inner than the side edge 3' and the side edge 3' is bent between said die and the convex die 12. Since the concave die 13 contacts the end of the side edge of the sheet steel at one point at the instant when said die is moved upward by turning of the bed member 14, this method gives bending moment concentrically to the end, thereby making possible bending sufficiently up to the end at required radius.
COPYRIGHT: (C)1981,JPO&Japio
JP55016010A 1980-02-14 1980-02-14 How to bend the ends of steel plates when manufacturing UOE steel pipes Expired JPS5949096B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP55016010A JPS5949096B2 (en) 1980-02-14 1980-02-14 How to bend the ends of steel plates when manufacturing UOE steel pipes
US06/233,824 US4430872A (en) 1980-02-14 1981-02-12 Method and apparatus for plate edge preparation for UOE pipe making process
CA000370732A CA1167361A (en) 1980-02-14 1981-02-12 Method of edge preparation for uoe process and an apparatus thereof
FR8102827A FR2475945B1 (en) 1980-02-14 1981-02-13 PROCESS FOR THE PREPARATION OF THE EDGES OF SHEET METAL IN THE PROCESS FOR FORMING TUBES WITH THE PRESS CALLED UO AND APPARATUS FOR ITS IMPLEMENTATION
DE3105351A DE3105351C2 (en) 1980-02-14 1981-02-13 Device for bending the longitudinal edge area of a steel plate
IT19793/81A IT1135494B (en) 1980-02-14 1981-02-16 METHOD AND APPARATUS FOR THE PREPARATION OF THE MARGINAL PART OF SLABS IN A BENDING PROCESS FOR THE PRODUCTION OF TUBES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55016010A JPS5949096B2 (en) 1980-02-14 1980-02-14 How to bend the ends of steel plates when manufacturing UOE steel pipes

Publications (2)

Publication Number Publication Date
JPS56114530A true JPS56114530A (en) 1981-09-09
JPS5949096B2 JPS5949096B2 (en) 1984-11-30

Family

ID=11904610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55016010A Expired JPS5949096B2 (en) 1980-02-14 1980-02-14 How to bend the ends of steel plates when manufacturing UOE steel pipes

Country Status (4)

Country Link
JP (1) JPS5949096B2 (en)
CA (1) CA1167361A (en)
DE (1) DE3105351C2 (en)
IT (1) IT1135494B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004050784B3 (en) 2004-10-14 2006-05-24 Mannesmannröhren-Werke Ag Method and bending press for bending the edge strips of a planar sheet to be formed into a slotted pipe
DE102007012316B9 (en) * 2007-03-09 2009-06-10 Europipe Gmbh Method and bending press for bending the edge strips of a planar sheet to be formed into a slotted pipe
WO2010118759A2 (en) * 2009-04-16 2010-10-21 Gmbh Siegen Bergrohr Bending press for sheet panels

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1296690A (en) * 1961-05-10 1962-06-22 Babcock & Wilcox France Sheet metal handling device on bending presses
DE2455596C3 (en) * 1974-11-23 1978-05-03 Mannesmann Ag, 4000 Duesseldorf Press with convex and concave tools for bending the edges of metal sheets
DE2701207C2 (en) * 1977-01-13 1978-11-09 G. Siempelkamp Gmbh & Co, 4150 Krefeld Hydraulic sheet metal bending press

Also Published As

Publication number Publication date
DE3105351C2 (en) 1986-05-22
DE3105351A1 (en) 1981-12-17
IT1135494B (en) 1986-08-20
JPS5949096B2 (en) 1984-11-30
CA1167361A (en) 1984-05-15
IT8119793A0 (en) 1981-02-16

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