CA2020259A1 - Method and apparatus for bending manufacturing of long workpiece - Google Patents

Method and apparatus for bending manufacturing of long workpiece

Info

Publication number
CA2020259A1
CA2020259A1 CA2020259A CA2020259A CA2020259A1 CA 2020259 A1 CA2020259 A1 CA 2020259A1 CA 2020259 A CA2020259 A CA 2020259A CA 2020259 A CA2020259 A CA 2020259A CA 2020259 A1 CA2020259 A1 CA 2020259A1
Authority
CA
Canada
Prior art keywords
bending
sections
workpiece
long workpiece
productivity
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
CA2020259A
Other languages
French (fr)
Other versions
CA2020259C (en
Inventor
Motohiko Kitsukawa
Atsuo 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.)
Hashimoto Forming Industry Co Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2020259A1 publication Critical patent/CA2020259A1/en
Application granted granted Critical
Publication of CA2020259C publication Critical patent/CA2020259C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/14—Twisting
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die

Abstract

A method and an apparatus for the manufacture of a long workpiece capable of bending different sections of the workpiece at different bending radii, while preventing buckling deformation during bending of small bending radius sections and a lowering of a productivity. The speed of travel of the workpiece is controlled to be lower for sections requiring a larger degree of bending per unit length, so as to prevent the buckling deformation, and to be higher for sections requiring smaller bending per unit length, so as to prevent the lowering of the productivity.
CA002020259A 1989-06-30 1990-06-29 Method and apparatus for bending manufacturing of long workpiece Expired - Lifetime CA2020259C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1166974A JPH0335822A (en) 1989-06-30 1989-06-30 Working method for bending long size work
JPP1-166974 1989-06-30

Publications (2)

Publication Number Publication Date
CA2020259A1 true CA2020259A1 (en) 1990-12-31
CA2020259C CA2020259C (en) 1997-07-15

Family

ID=15841067

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002020259A Expired - Lifetime CA2020259C (en) 1989-06-30 1990-06-29 Method and apparatus for bending manufacturing of long workpiece

Country Status (4)

Country Link
US (1) US5425257A (en)
EP (1) EP0405600A1 (en)
JP (1) JPH0335822A (en)
CA (1) CA2020259C (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1001322B (en) * 1990-04-06 1993-08-31 Panagiotis Anagnostopoulos Mechanism for wire bending machines
US5595093A (en) * 1994-05-12 1997-01-21 Western Printing Machinery Company Method of forming a rotary cutting die
JP3733176B2 (en) * 1996-07-10 2006-01-11 株式会社オプトン Bending machine
IT1308472B1 (en) 1999-05-04 2001-12-17 Tauring S P A BENDING MACHINE FOR PIPES, PROFILES OR SIMILAR
FR2806946B1 (en) * 2000-04-04 2002-06-07 Latour Et Fils MACHINE FOR BENDING AND TURNING FLAT METAL WIRE
DE10214275A1 (en) * 2002-03-28 2003-10-16 Palima W Ludwig & Co Bending machine for profiles and round tubes
US8919171B2 (en) * 2005-03-03 2014-12-30 Nippon Steel & Sumitomo Metal Corporation Method for three-dimensionally bending workpiece and bent product
US7882718B2 (en) * 2005-06-13 2011-02-08 Shape Corp. Roll-former apparatus with rapid-adjust sweep box
US7337642B2 (en) * 2005-06-13 2008-03-04 Shape Corporation Roll-former apparatus with rapid-adjust sweep box
DE102007013902A1 (en) * 2007-03-20 2008-09-25 Universität Dortmund Device for profile bending
US8307685B2 (en) * 2008-04-09 2012-11-13 Shape Corp. Multi-directionally swept beam, roll former, and method
DE102008050366B4 (en) * 2008-10-02 2010-06-17 Data M Sheet Metal Solutions Gmbh System for cold rolling profiling of profiles with variable cross section
EP2671653B1 (en) * 2009-07-14 2015-05-20 Nippon Steel & Sumitomo Metal Corporation Method and apparatus for manufacturing a bent member
US8333096B2 (en) 2009-09-21 2012-12-18 Shape Corp. Method of forming three-dimensional multi-plane beam
IT1396456B1 (en) * 2009-11-24 2012-11-23 Piegatrici Macch Elettr EQUIPMENT FOR BENDING OBLUNG METAL PRODUCTS, SUCH AS BARS, ROUNDS, OR METAL WIRES, AND RELATIVE BENDING PROCEDURE
DE102012219639A1 (en) 2012-05-31 2013-12-05 Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg Method for roll bending a profile, profile, method for producing curved profile workpieces, curved profile workpiece, device for roll bending a profile and extrusion and roll bending line
CN106077202B (en) * 2016-06-16 2018-07-31 百安力钢结构应用科技有限公司 Metal Roof former
CN111730350B (en) * 2020-06-20 2021-11-23 山东博莱特汽车零部件有限公司 Leaf spring production line
CN114603012A (en) * 2022-03-10 2022-06-10 姚京杰 Curved arc type mould of aluminium type material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080815A (en) * 1975-06-09 1978-03-28 The Boeing Company Pinch and forming roll assembly for numerically controlled contour forming machines
JPS5938048B2 (en) * 1975-09-18 1984-09-13 第一高周波工業 （株） Continuous bending method and device for long materials
US4391116A (en) * 1979-12-03 1983-07-05 Teruaki Yogo Lace bending apparatus
JPS56102319A (en) * 1980-01-21 1981-08-15 Inoue Mtp Co Ltd Method and apparatus for bending long sized material
DE3577818D1 (en) * 1984-01-30 1990-06-28 Hashimoto Forming Kogyo Co CUTTING DEVICE FOR MULTI-DIRECTION BENDING MACHINE.
GB8407712D0 (en) * 1984-03-24 1984-05-02 Ae Plc Piston rings for ic engines
GB8607806D0 (en) * 1986-03-27 1986-04-30 Caledonian Mining Co Ltd Drive system

Also Published As

Publication number Publication date
US5425257A (en) 1995-06-20
JPH0512051B2 (en) 1993-02-17
EP0405600A1 (en) 1991-01-02
CA2020259C (en) 1997-07-15
JPH0335822A (en) 1991-02-15

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