EP0936005B1 - Vorrichtung zum Biegen von Metalldrähten - Google Patents

Vorrichtung zum Biegen von Metalldrähten Download PDF

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Publication number
EP0936005B1
EP0936005B1 EP98440013A EP98440013A EP0936005B1 EP 0936005 B1 EP0936005 B1 EP 0936005B1 EP 98440013 A EP98440013 A EP 98440013A EP 98440013 A EP98440013 A EP 98440013A EP 0936005 B1 EP0936005 B1 EP 0936005B1
Authority
EP
European Patent Office
Prior art keywords
rotation
fingers
bending
axis
shaft
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.)
Expired - Lifetime
Application number
EP98440013A
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English (en)
French (fr)
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EP0936005A1 (de
Inventor
Fabien Casters
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP98440013A priority Critical patent/EP0936005B1/de
Priority to AT98440013T priority patent/ATE217220T1/de
Priority to DE69805273T priority patent/DE69805273D1/de
Publication of EP0936005A1 publication Critical patent/EP0936005A1/de
Application granted granted Critical
Publication of EP0936005B1 publication Critical patent/EP0936005B1/de
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
    • 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
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
    • 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

Definitions

  • the subject of the present invention is a cambering device for metallic wires.
  • the wire from a spool or a boot passes through a rectifier and then is supported by a system which pushes it by the desired length towards the tool bending, which generally includes a bending head, movable in rotation along the axis of the wire, comprising a fixed finger holding the wire and a finger provided with a roller, capable of rotate concentrically with the axis of said fixed finger, according to a determined angular deviation, in order to arch the wire.
  • the change of direction of curvature is realized, since the wire cannot rotate axially, by changing the starting position fingers, which is obtained either by rotating of the bending head, either by reversing the position of the fingers by their retraction in the bending head.
  • this device comprises in a head of mobile bending in rotation around the axis of the wire, of a share two parallel trees, between the ends of which passes transversely, externally to said head of bending, the wire to be bent, said shafts being connected by through a room with two cogwheels identical secured to each other not concentrically by their sides, said shafts each passing axially and jointly one of said gear wheels; on the other hand, for each of said trees, an arc guide path of circle, the guide path from one shaft being coaxial to the other tree; and on the other hand still a cog wheel susceptible to be rotated in one direction or the other, and positioned equidistant from said trees so as to mesh on said cogwheels.
  • Shafts are slidably mounted in the guideways by means of pads in which they are mounted free rotation, said pads being in the form of a segment ring.
  • each of the fingers can be rotated bending finger or holding finger, allows to pass from one direction of curvature to another without requiring retraction, and limiting the rotation time of the bending head.
  • this device lacks reliability over time, mainly due to wear of the sliding shoes, resulting in clearances important which cause inaccuracies in the guidance, which goes against the desired goal namely speed execution.
  • the object of the present invention is to propose a device for bending of metal wires to remedy this disadvantage.
  • the wire bending device object of the present invention is of the type comprising a bending head movable in rotation about the axis of the wire and comprising two fingers between which said metal wire passes, each said fingers being capable of being rotated concentrically around the other which is then fixed, and it essentially characterized in that said fingers are carried by the end of a tree likely to be led in rotation along one or the other of the axes of said fingers, and carried by first rotating guide means, one of which is concentric with one of said axes while the other is concentric to the other of said axes, each of said first means for guiding in rotation being carried by a second means guiding in rotation, concentric with that of said axes which is not concentric with the first guide means in rotation that it carries.
  • the tree is also carried on the side comprising the fingers, by a guidance system similar to that which carries it on the other side.
  • the rotating guide means consist in bearings.
  • the shaft carries two pinions each coaxial with the axis of one of the fingers, and able to mesh on a wheel toothed carried by a shaft parallel to the axes of said fingers and equidistant from them, and likely to be rotated one way or the other.
  • the bending device according to the invention is of a more reliable operation than that of existing devices, and in particular that of document FR-A-2,744,941, by authorizing a better guidance.
  • This bending head has two flanges 1 and 2 joined together via two spacers 3.
  • the flanges 1 and 2 are crossed perpendicularly by a shaft 4 which carries at its end 40, on the side of the flange 1, two bending fingers 41 and 42 parallel, between which passes a wire 5 to be bent.
  • the end 43 of the shaft 4, opposite the end 40, is mounted in rotation concentrically to the axis YY 'in a flank 20 by through a bearing 21, while the flank 20 is itself mounted in rotation, concentrically to the axis XX ', in the flange 2 by means of a bearing 22.
  • the shaft 4 is also mounted in rotation, concentrically with axis XX ', in a sidewall 10 by means of a bearing 11, while the sidewall 10 is itself mounted in rotation, concentrically to the axis YY ', in the flange 1 by through a bearing 12.
  • This assembly makes it possible to rotate either the finger 41 concentrically to the axis YY 'of finger 42 which then rotates axially, i.e. finger 42 concentrically with axis XX 'of the finger 41 which then rotates axially.
  • the shaft 4 carries, between the flanges 1 and 2, two identical pinions 44 and 45, which are integral with it, the pinion 44 being coaxial with the axis XX 'of the finger 41, while the pinion 45 is coaxial with the axis YY 'of the finger 42.
  • the bending head also includes a toothed wheel 6 carried by a tree, not visible, parallel to the axes XX 'and YY' and equidistant from these, mounted in rotation in the flanges 1 and 2, and driven in rotation by a stepping motor, no shown, the toothed wheel 6 being able to mesh on one either of gables 44 and 45.
  • the bending of a wire 5 is similar to that achieved by means of the device described in document FR-A-2,744,941, namely that, as can be seen in Figure 2, the rotation of the toothed wheel 6 in the direction of arrow A can only lead to the rotation of the pinion 44 along its XX 'in the direction of the arrow B, while the pinion 45 rotates around the axis XX 'resulting in the rotation of the finger 42 around of the finger 41 and the bending of the wire 5 around it.
  • the shaft 4 is rotatably mounted in a sidewall 70 concentric to the axis YY ' via a bearing 71, while the side 70 is mounted in rotation concentrically to the axis XX 'by by means of a bearing 72 in a solid plate 7 flange 1.
  • the fingers 41 and 42 are preferably each provided with a roller in free rotation, not shown, and that the bending of metallic wires of different diameters is possible using rollers of suitable diameters, with however an influence on the radius of curvature.
  • the distance between the bending fingers is variable, it is chosen according to the diameter of the wire and the radius of curvature longed for.
  • cambering device also allows the bending of tubes.

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

Claims (5)

  1. Biegevorrichtung für Metaldrähte, der Art, die einen Biegekopf umfaßt, der um die Achse des Drahtes (5) freidrehend ist und zwei Finger (41, 42) umfaßt, zwischen denen der genannte Metaldraht (5) läuft, wobei jeder der genannten Finger (41, 42) geeignet ist, konzentrisch zur anderen, der dann fest ist, in Drehung angetrieben zu werden, und dadurch gekennzeichnet, daß die genannten Finger (41, 42) vom Ende (40) einer Welle (4) getragen werden, die geeignet ist, gemäß der einen oder der anderen der Achsen (XX', YY') der genannten Finger (41, 42) in Drehung angetrieben zu werden, und von ersten Mitteln zur Führung während der Drehung (11, 21) getragen ist, von denen das eine konzentrisch zu einer der genannten Achsen, während das andere konzentrisch zur anderen der genannten Achsen ist, wobei jedes der genannten ersten Mittel zur Führung während der Drehung (11, 21) von einem zweiten Mittel zur Führung während der Drehung (12, 22) getragen wird, das konzentrisch zu der einen der genannten Achsen (XX', YY') ist, zu der das erste Mittel zur Führung während der Drehung (11, 21), das es trägt, nich konzentrisch ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Welle (4) an der Seite, die die Finger (41, 42) umfaßt, ebenfalls von einem Führungssystem (71, 70, 72) getragen wird, das demjenigen (21, 20, 22), das es an der anderen Seite trägt, ähnlich ist.
  3. Vorrichtung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß die Mittel zur Führung während der Drehung aus Lagern (11, 12, 21, 22, 71, 72) bestehen.
  4. Vorrichtung nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß die Welle (4) zwei Zahnräder (44, 45) trägt, die jeweils koaxial zur Achse der Finger (41, 42) und geeignet sind, über eine Welle, die parallel zu den Achsen der genannten Finger läuft und gleich weit von diesen letzten beabstandet ist, in ein Zahnrad (6) einzugreifen, und in der Lage ist, in der einen oder der anderen Richtung in Drehung angetrieben zu werden.
  5. Vorrichtung nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß die Finger (41, 42) jeweils mit einem freidrehenden Laufrad versehen sind.
EP98440013A 1998-02-04 1998-02-04 Vorrichtung zum Biegen von Metalldrähten Expired - Lifetime EP0936005B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98440013A EP0936005B1 (de) 1998-02-04 1998-02-04 Vorrichtung zum Biegen von Metalldrähten
AT98440013T ATE217220T1 (de) 1998-02-04 1998-02-04 Vorrichtung zum biegen von metalldrähten
DE69805273T DE69805273D1 (de) 1998-02-04 1998-02-04 Vorrichtung zum Biegen von Metalldrähten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98440013A EP0936005B1 (de) 1998-02-04 1998-02-04 Vorrichtung zum Biegen von Metalldrähten

Publications (2)

Publication Number Publication Date
EP0936005A1 EP0936005A1 (de) 1999-08-18
EP0936005B1 true EP0936005B1 (de) 2002-05-08

Family

ID=8235656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98440013A Expired - Lifetime EP0936005B1 (de) 1998-02-04 1998-02-04 Vorrichtung zum Biegen von Metalldrähten

Country Status (3)

Country Link
EP (1) EP0936005B1 (de)
AT (1) ATE217220T1 (de)
DE (1) DE69805273D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805188B1 (fr) * 2000-02-21 2002-06-07 Latour Et Fils Sa Dispositif de cambrage de fil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106202C3 (de) * 1971-02-10 1975-03-20 Golownoje Spezial'noje Konstruktorskoje Bjuro Po Mechanisazii Proiswodstwa Energetitscheskogo Oborudowanija, Rostow-Na-Donu (Sowjetunion) Maschine zum Biegen von Rohrschlangen
DE2215490A1 (de) * 1972-03-29 1973-10-04 Peddinghaus Carl Ullrich Dr Biegemaschine fuer insbesondere betonstahlstaebe
JPS6160218A (ja) * 1984-08-30 1986-03-27 Sanden Corp 蛇行パイプ製造装置
FR2685228B1 (fr) * 1991-12-23 1995-08-11 Automation Franc Machine a cintrer un element du type tige, barre, tube, fil ou analogue.
FR2744941B1 (fr) * 1996-02-16 1998-05-15 Scdc Sarl Procede et dispositif de cambrage de fils metalliques

Also Published As

Publication number Publication date
DE69805273D1 (de) 2002-06-13
EP0936005A1 (de) 1999-08-18
ATE217220T1 (de) 2002-05-15

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