EP0226167A2 - Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé - Google Patents

Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé Download PDF

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Publication number
EP0226167A2
EP0226167A2 EP86117135A EP86117135A EP0226167A2 EP 0226167 A2 EP0226167 A2 EP 0226167A2 EP 86117135 A EP86117135 A EP 86117135A EP 86117135 A EP86117135 A EP 86117135A EP 0226167 A2 EP0226167 A2 EP 0226167A2
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EP
European Patent Office
Prior art keywords
bending
machine according
bending machine
drive
pressure pieces
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
EP86117135A
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German (de)
English (en)
Other versions
EP0226167A3 (en
EP0226167B1 (fr
Inventor
Helmut Dipl.-Ing. Dischler
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to AT86117135T priority Critical patent/ATE82883T1/de
Publication of EP0226167A2 publication Critical patent/EP0226167A2/fr
Publication of EP0226167A3 publication Critical patent/EP0226167A3/de
Application granted granted Critical
Publication of EP0226167B1 publication Critical patent/EP0226167B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • 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
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • 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
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only

Definitions

  • the invention relates to a method for bending strand-like material, in particular wires, pipes, cables, profiles or the like. It also relates to a bending machine for carrying out this method with two bending apparatuses which are arranged at a distance from one another and each have at least two bending pressure pieces and drives for moving at least one of the bending pressure pieces essentially transversely to the material.
  • Such bending machines are described in DE-OS 16 52 822 and DE-PS 537 904. They have two or more bending apparatuses next to each other, each with two bending pressure pieces. In the bending machines according to the first-mentioned document, the distance between the bending apparatuses can also be adjusted so that bends with different distances from one another can be produced.
  • Another bending machine is known from DE-GM 18 81 368, which has a bending apparatus with roller-shaped bending pressure pieces. Furthermore, roller guides are provided for the wire to be bent.
  • the invention is therefore based on the object to find a method that allows the production of large bending radii using compact bending machines, with a conversion of the bending machine in the production of bends with different bending radii should be unnecessary.
  • This object is achieved in that the strand-like material is rotated in two mutually spaced locations in opposite directions and at the same time around two axes which are parallel to one another and extend transversely to the longitudinal axis of the material, without significant effects from other forces.
  • a torque or bending moment acting transversely to the longitudinal axis of the material is impressed on the material to be bent, specifically by a couple of forces acting at two spaced locations.
  • the material then bends freely and evenly in the space between the two bending devices.
  • a bending radius then arises which, unlike in the known bending machines, does not vary from Diameter of the bending pressure pieces depends, but on the distance of the bending apparatus at the beginning of the bending process. The larger this distance, the larger the bending radius.
  • the drives are designed to work in opposite directions and the bending pressure pieces each have a freely rotatable jacket.
  • the drives are designed to work in opposite directions and that at least one of the bending apparatuses is guided in relation to the other in a plane perpendicular to the axes of rotation for applying a torque during the bending process without additional forces.
  • the torque is applied without additional forces in both solutions by means of drives operating in opposite directions and at the same time for at least one of the bending pressure pieces.
  • the material to be bent is kept free from any further forces by the roll-shaped design of the bending pressure pieces, since the material can slip between the bending pressure pieces during bending.
  • the second-mentioned solution there is no relative movement between the material and the bending pressure pieces, because the bending apparatus is guided in such a way that its distance is reduced in accordance with the progress of the bending process.
  • This embodiment is particularly suitable for bending material with a rough surface, such as structural steel, because this material would hardly be between the two bending pressure pieces after first mentioned solution slide.
  • the occurrence of additional forces is avoided by the relative movement of the two bending devices during the bending process.
  • the bending machine according to the invention can also be used for checking inhomogeneities in the material. If this inhomogeneity results in a lower moment of inertia in the material than in the rest of the area, a clearly visible, smaller arc is formed there during bending out.
  • the bending device (s) are expediently arranged displaceably in a slot guide, this slot guide being able to be provided, for example, in a tool table.
  • the bending pressure pieces can be moved transversely to the material in a simple and known manner with the aid of a rotary drive.
  • the bending pressure pieces can be arranged on a turntable.
  • Linear drives are to be understood in particular as hydraulic or pneumatic cylinders or also spindle drives or the like.
  • each bending apparatus has its own, separately reversible drive. This opens up the possibility of being able to drive the axes of rotation not only in opposite directions but also in the same direction or even only one of the axes of rotation. In this way, various bends can be produced.
  • special positive guides can also be provided, which bring about the change in distance required for impressing the bending moment in the sense of the second-mentioned solution.
  • This can be done in a simple manner in that the bending apparatuses are each attached to a pivoting device, the pivoting devices being pivotable relative to one another via at least one drive.
  • the swivel devices can each as two guide links can be formed, each forming a four-bar arch. It is useful that the guide links each run parallel to each other and also have the same length, so that the respective four-bar arch forms a parallelogram.
  • a simple construction results when the guide links are articulated on the bending apparatus in the axes of the bending pressure pieces.
  • a guide link of the one bending device should be synchronized with a guide link of the other bending device via a transmission.
  • This can be done in a simple manner by means of two meshing gears or gear segments.
  • the gearwheel transmission is particularly simple if one of the guide links is mounted in the pivot axis of the associated four-bar link, that is, its articulation point only executes a rotary movement.
  • the free ends of the drive link can then be coupled to the drive motor.
  • the drive motor acting on one of the link connections.
  • both bending devices are only over actuates a drive motor, which is particularly advantageous for training as a hand-held device, since this saves weight.
  • the drive motor can then be designed, for example, as a pressure cylinder with a return spring.
  • Other drives such as, for example, electrical or, in exceptional cases, hydraulic drives are also possible.
  • each bending apparatus may be expedient for one bending pressure piece of each bending apparatus to lie in the axis of rotation, that is to say it serves only as an abutment. In this case, only one of the bending pressure pieces is moved transversely to the material to be bent.
  • the distance between the bending pressure pieces of a bending apparatus should also be adjustable in order to further improve the adaptability.
  • the invention provides that a pressure piece is arranged between the bending apparatus, which prevents the formation of a circular arc, so that a U-bend can be made with a straight connection between the corner bends.
  • Figures (3) and (4) show the main operating modes of the bending machine (1) according to Figures (1) and (2), namely in a top view of the two bending devices (6, 7) and their turntables ( 14, 15) with the bending pressure pieces (16, 17) or (18, 19).
  • the table top (2) is omitted for the sake of clarity.
  • the turntables (14, 15) are in the position shown in FIG. (2), so that a material to be bent, for example a wire (29), is inserted between the bending pressure pieces (16, 17) or (18, 19) can be. If the two turntables (14, 15) are driven simultaneously and in opposite directions, as can be seen in FIGS. (3) and (4) by indicating the arrows C, D, E, F, the bending pressure pieces (16, 17) or (18, 19) is moved essentially transversely against the wire (29) and thus a bending moment is applied to the wire (29) so that the wire (29) begins to bend freely.
  • the distance between the two turntables (14, 15) automatically shortens until the U-shape shown in FIG. (5) is reached.
  • the bending radius depends on the distance between the turntables (14, 15) at the start of the bending process.
  • the bending apparatuses (52, 53) each consist of a turntable (54, 55) with bending pressure pieces (56, 57, 58, 59) that are perpendicular to the plane of the drawing.
  • the respective upper bending pressure pieces (57, 58) are composed of a stud bolt (60) or (61) and a roller (62, 63) placed over them, while the respectively lower bending pressure pieces ( 56, 59) consist of only one stud (65, 66). All four stud bolts (60, 61, 65, 66) protrude from the rear.
  • the guide links (48, 49, 50, 51) are articulated to these projections.
  • a downward sagging of the wire (69) then occurs between the bending apparatuses (52, 53), the bending angle depending on the pivoting angle of the drive lever (44, 45).
  • the desired bending radius is determined by the distance between the two bending devices (52, 53) at the beginning of the bending process. The larger it is, the larger is the bending radius that arises during the bending process.
  • wires can be produced with the desired bending angle and radius without having to change anything on the bending machine (32) itself.
  • the bending machine (70) shown in FIG. (6) has a table top (71) which has a straight slot (72) Has.
  • Two bending devices (73, 74) are easily displaceable, but non-rotatably guided in this slot (72). This can be done in the same way as in the embodiment of Figures (1) and (2).
  • the right-hand bending apparatus (74) in this view also has two bending pressure pieces (80, 81) which are arranged at a distance from one another and are each seated at the free ends of piston rods (82, 83) which extend transversely to the slot (72) extend and are guided by pistons (84, 85) in hydraulic cylinders (86, 87). The latter are attached to the bending apparatus (74) in a stationary manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)
EP86117135A 1985-12-13 1986-12-09 Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé Expired - Lifetime EP0226167B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117135T ATE82883T1 (de) 1985-12-13 1986-12-09 Verfahren zum biegen von strangfoermigem material sowie biegemaschine zur durchfuehrung dieses verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3544056 1985-12-13
DE19853544056 DE3544056A1 (de) 1985-12-13 1985-12-13 Biegemaschine

Publications (3)

Publication Number Publication Date
EP0226167A2 true EP0226167A2 (fr) 1987-06-24
EP0226167A3 EP0226167A3 (en) 1988-11-23
EP0226167B1 EP0226167B1 (fr) 1992-12-02

Family

ID=6288337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117135A Expired - Lifetime EP0226167B1 (fr) 1985-12-13 1986-12-09 Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé

Country Status (7)

Country Link
US (2) US4798073A (fr)
EP (1) EP0226167B1 (fr)
JP (1) JP2534245B2 (fr)
AT (1) ATE82883T1 (fr)
CA (1) CA1336877C (fr)
DE (2) DE3544056A1 (fr)
ES (1) ES2037005T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620955A1 (fr) * 1987-09-25 1989-03-31 Eaton Leonard Technologies Appareil de cintrage et machine le comportant, en particulier pour tubes
BE1006712A3 (nl) * 1993-01-29 1994-11-22 Sumaco Inrichting voor het in een beweging plooien van een reeks naast elkaar liggende draden behorende tot een net.
EP0661116A1 (fr) * 1993-12-28 1995-07-05 Toyota Jidosha Kabushiki Kaisha Méthode et dispositif pour le cintrage des tubes
EP0698429A1 (fr) * 1994-08-25 1996-02-28 Altro Steel N.V. Dispositif de pliage en une opération d'une serie de barres parallèles formant une treillis
WO2007102176A1 (fr) * 2006-03-08 2007-09-13 Pro Form S.R.L. Dispositif et procede de pliage d'un ruban metallique
CN108746418A (zh) * 2018-08-01 2018-11-06 广东金客厨房科技有限公司 一种金属线材的折弯成型装置
CN114378153A (zh) * 2021-12-22 2022-04-22 中船重工西安东仪科工集团有限公司 一种薄壁钢管冷弯模具及冷弯方法

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1234183B (it) * 1989-03-06 1992-05-05 Piegatrici Macch Elettr Gruppo piegatore brandeggiabile.
DE4310773C2 (de) * 1993-04-02 2002-10-17 Martin Reigl Vorrichtung zum freien plastischen Biegen eines Werkstücks
JP2991027B2 (ja) * 1994-02-15 1999-12-20 住友金属工業株式会社 熱交換器およびその熱交換器用ｕベンド管の製造に用いる管曲げ方法
US5497643A (en) * 1994-02-16 1996-03-12 Ars Corporation Remote bending apparatus
KR0182069B1 (ko) * 1995-06-22 1999-04-01 송병준 컷팅블레이드의 절곡시스템
US6012320A (en) * 1998-01-14 2000-01-11 Oxford Suspension, Inc. Leaf spring straightening apparatus
US6173599B1 (en) * 1998-01-14 2001-01-16 Oxford Suspension, Inc. Leaf spring straightening apparatus
US5960664A (en) * 1998-04-21 1999-10-05 Metalsa S. De R.L. Channel forming and punching machine
US5970766A (en) * 1998-04-22 1999-10-26 Metalsa S De R.L. Bending machine for closing channels
US6128811A (en) * 1998-07-15 2000-10-10 Krueger International, Inc Apparatus and method for forming table aprons
CA2245996C (fr) * 1998-08-26 2000-05-09 Kevin James Russell Machine a cintrer des tuyaux
WO2002003887A2 (fr) * 2000-07-12 2002-01-17 Edwards Lifesciences Corporation Procede et dispositif permettant de former une armature de valvule cardiaque
JP2002192236A (ja) * 2000-12-25 2002-07-10 Nhk Spring Co Ltd 長尺材の曲げ加工装置
US6460395B1 (en) * 2001-05-07 2002-10-08 Vought Aircraft Industries, Inc. System and method for bending a structural member
US6769282B2 (en) * 2002-05-17 2004-08-03 Henden Industries, Inc. One-step offset bender
US20050109074A1 (en) * 2003-11-21 2005-05-26 Olsen Vincent C. Method and computer controlled apparatus for bending elongate material utilizing a pure bending moment
NL1025692C1 (nl) * 2004-03-11 2005-09-13 Dako Werk Dowidat Kg Buigmachine voor het buigen van strippen, platen, profielen, rond materiaal en dikwandige buis.
JP5184847B2 (ja) * 2007-08-29 2013-04-17 マニー株式会社 医療用縫合針の曲げ加工装置
US8234898B1 (en) 2008-12-12 2012-08-07 Wilson Brian S Bending assembly for extruded stock material
US9296034B2 (en) * 2011-07-26 2016-03-29 Medtronic Vascular, Inc. Apparatus and method for forming a wave form for a stent from a wire
AT513266B1 (de) * 2012-12-17 2014-03-15 Voestalpine Stahl Gmbh Freies Biegeverfahren zum Abkanten eines Blechs
CN103465030B (zh) * 2013-09-04 2016-01-20 建科机械（天津）股份有限公司 盾构管片钢筋笼中单片网的挤压焊接设备
US10427208B2 (en) * 2014-09-30 2019-10-01 Pensa Labs, Inc. Wire bender
CN104766678B (zh) * 2015-04-30 2016-08-17 宁夏回族自治区电力设计院 利用弯曲设备对电缆的头部进行弯曲成形的方法
CN105215103B (zh) * 2015-09-24 2017-12-26 安徽省宁国市天成科技发展有限公司 一种u形加热管连续加工设备
CN106734424A (zh) * 2016-11-17 2017-05-31 讯龙型材折弯（合肥）有限公司 一种两侧旋转挤压式s形棒料折弯机构
US11167337B2 (en) 2018-11-01 2021-11-09 Pensa Labs, Inc. Self cutting wire bender
US11173538B2 (en) 2019-01-11 2021-11-16 Pensa Labs, Inc. Wire bender with self aligned removable bend pin assembly
CN110385383B (zh) * 2019-07-26 2024-10-11 珠海市赛科自动化有限公司 一种电感弯脚装置
BG67466B1 (bg) * 2019-10-10 2022-10-17 Тодоров Киров Валентин Автоматична машина и метод за производство на арматурни заготовки
CN112845724B (zh) * 2021-01-06 2022-10-14 上海闸电东海电力工程有限公司 一种基于电力工程的便捷式液压弯管设备
DE102021127807A1 (de) 2021-10-26 2023-04-27 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum bereichsweisen Umformen schlanker Werkstücke, Werkstück sowie Vorrichtung
CN217047463U (zh) * 2021-12-08 2022-07-26 中建科工集团有限公司 一种弯折装置
CN114472628B (zh) * 2021-12-20 2024-06-11 丹阳市龙鑫合金有限公司 一种用于抗振条棒材的快速折弯装置及其使用方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524712A (fr) *
DE537904C (de) * 1927-06-16 1931-11-07 C U W Berges Maschinenfabrik Vorrichtung zum Biegen von Rundeisen mit drehbarer, mit Biegedornen versehener Biegeplatte oder Biegehebel
DE559683C (de) * 1930-12-02 1932-09-22 Arsene Fasquelle Maschine zum Biegen von Buegeln, die zur Verbindung der Eiseneinlagen von Betonbauten dienen
FR832536A (fr) * 1937-05-14 1938-09-28 Machine à cintrer les tuyaux
FR49413E (fr) * 1938-04-23 1939-03-24 Machine à cintrer les tuyaux
DE1652822A1 (de) * 1968-01-26 1971-07-08 Loeser Betonfensterwerk Kg Biegemaschine fuer Betonstahl
FR2294778A1 (fr) * 1974-12-16 1976-07-16 Evg Entwicklung Verwert Ges Cintreuse pour materiau en barre, en particulier pour barres d'armature a beton
DE3341714A1 (de) * 1983-11-18 1985-05-30 Peddinghaus, Carl Ullrich, Dr., 5600 Wuppertal Anlage zum anbringen von endabschnitt- biegungen an betonstahlstaeben

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200127C (fr) *
DE542855C (de) * 1927-02-26 1932-01-29 Anton Wagenbach Biegemaschine
US2414926A (en) * 1943-06-28 1947-01-28 Boiler Engineering & Supply Co Tube bending machine with pivoted sweep arm
US2696939A (en) * 1950-06-26 1954-12-14 William R Courtney Container top sealing mechanism
US2756428A (en) * 1954-01-21 1956-07-31 Kellersman Robert Vacuum bag clip fastener apparatus
DE1881368U (de) * 1963-08-20 1963-10-24 Maro Maschb G M B H Stahlbiegemaschine.
DE1552970B2 (de) * 1965-04-24 1977-01-13 Maschine zum biegen von versteifungsbuegeln, armierungseisen o.dgl.
GB1298666A (en) * 1969-01-13 1972-12-06 Michael William Lusty Pipe bender
US3606786A (en) * 1969-04-17 1971-09-21 Julian S Taylor Single bar module bender
US3803893A (en) * 1971-08-17 1974-04-16 P Peddinghaus Process for multiple bending of rods and a bending machine for carrying out this process
JPS4977228U (fr) * 1972-10-20 1974-07-04
SU607617A1 (ru) * 1976-04-06 1978-05-25 Предприятие П/Я Х-5539 Устройство дл гибки п-образных изделий
JPS5423353A (en) * 1977-07-25 1979-02-21 Olympus Optical Co Ltd Automatic retrieval method
SU721162A1 (ru) * 1978-03-30 1980-03-15 Проектно-Конструкторское Бюро Министерства Монтажных И Специальных Строительных Работ Ссср Станок дл гибки труб
JPS55126322A (en) * 1979-03-23 1980-09-30 Mitsui Eng & Shipbuild Co Ltd Bending apparatus for metallic material
DE2918813A1 (de) * 1979-05-10 1980-11-20 Brueninghaus Gmbh Stahlwerke Vorrichtung zum biegen von metallstaeben
US4425781A (en) * 1981-02-04 1984-01-17 Hans Oetiker Method for manufacturing hose clamps
CH660398A5 (de) * 1982-01-21 1987-04-15 Peter Lisec Abstandhalterrahmen fuer isolierglasscheiben sowie verfahren zur herstellung desselben und vorrichtung zur durchfuehrung des verfahrens.
DE8309569U1 (de) * 1983-03-31 1985-02-21 Lang, Thomas Peter, Dipl.-Wirtsch.-Ing., 6120 Michelstadt Maschine zum biegen von strangmaterial

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524712A (fr) *
DE537904C (de) * 1927-06-16 1931-11-07 C U W Berges Maschinenfabrik Vorrichtung zum Biegen von Rundeisen mit drehbarer, mit Biegedornen versehener Biegeplatte oder Biegehebel
DE559683C (de) * 1930-12-02 1932-09-22 Arsene Fasquelle Maschine zum Biegen von Buegeln, die zur Verbindung der Eiseneinlagen von Betonbauten dienen
FR832536A (fr) * 1937-05-14 1938-09-28 Machine à cintrer les tuyaux
FR49413E (fr) * 1938-04-23 1939-03-24 Machine à cintrer les tuyaux
DE1652822A1 (de) * 1968-01-26 1971-07-08 Loeser Betonfensterwerk Kg Biegemaschine fuer Betonstahl
FR2294778A1 (fr) * 1974-12-16 1976-07-16 Evg Entwicklung Verwert Ges Cintreuse pour materiau en barre, en particulier pour barres d'armature a beton
DE3341714A1 (de) * 1983-11-18 1985-05-30 Peddinghaus, Carl Ullrich, Dr., 5600 Wuppertal Anlage zum anbringen von endabschnitt- biegungen an betonstahlstaeben

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620955A1 (fr) * 1987-09-25 1989-03-31 Eaton Leonard Technologies Appareil de cintrage et machine le comportant, en particulier pour tubes
BE1006712A3 (nl) * 1993-01-29 1994-11-22 Sumaco Inrichting voor het in een beweging plooien van een reeks naast elkaar liggende draden behorende tot een net.
EP0661116A1 (fr) * 1993-12-28 1995-07-05 Toyota Jidosha Kabushiki Kaisha Méthode et dispositif pour le cintrage des tubes
US5615570A (en) * 1993-12-28 1997-04-01 Toyota Jidosha Kabushiki Kaisha Method for bending a pipe and apparatus for bending the same
EP0698429A1 (fr) * 1994-08-25 1996-02-28 Altro Steel N.V. Dispositif de pliage en une opération d'une serie de barres parallèles formant une treillis
WO2007102176A1 (fr) * 2006-03-08 2007-09-13 Pro Form S.R.L. Dispositif et procede de pliage d'un ruban metallique
US8079244B2 (en) 2006-03-08 2011-12-20 Pro Form S.R.L. Device and method for bending a metallic strip
CN108746418A (zh) * 2018-08-01 2018-11-06 广东金客厨房科技有限公司 一种金属线材的折弯成型装置
CN114378153A (zh) * 2021-12-22 2022-04-22 中船重工西安东仪科工集团有限公司 一种薄壁钢管冷弯模具及冷弯方法
CN114378153B (zh) * 2021-12-22 2023-11-28 中船重工西安东仪科工集团有限公司 一种薄壁钢管冷弯模具及冷弯方法

Also Published As

Publication number Publication date
EP0226167A3 (en) 1988-11-23
CA1336877C (fr) 1995-09-05
JPS62187524A (ja) 1987-08-15
JP2534245B2 (ja) 1996-09-11
ATE82883T1 (de) 1992-12-15
US4798073A (en) 1989-01-17
EP0226167B1 (fr) 1992-12-02
DE3687221D1 (de) 1993-01-14
DE3544056A1 (de) 1987-06-25
US4890469A (en) 1990-01-02
ES2037005T3 (es) 1993-06-16

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