EP3269466B1 - Dispositif de pliage d'un fil pour une machine de soudage de poutre en treillis - Google Patents

Dispositif de pliage d'un fil pour une machine de soudage de poutre en treillis Download PDF

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Publication number
EP3269466B1
EP3269466B1 EP17175798.2A EP17175798A EP3269466B1 EP 3269466 B1 EP3269466 B1 EP 3269466B1 EP 17175798 A EP17175798 A EP 17175798A EP 3269466 B1 EP3269466 B1 EP 3269466B1
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EP
European Patent Office
Prior art keywords
bending
wire
punch
welding machine
clamping unit
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Active
Application number
EP17175798.2A
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German (de)
English (en)
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EP3269466A1 (fr
Inventor
Matthias Motz
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MBK Maschinenbau GmbH
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MBK Maschinenbau GmbH
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Application filed by MBK Maschinenbau GmbH filed Critical MBK Maschinenbau GmbH
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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
    • B21D11/10—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
    • 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

Definitions

  • the invention relates to a bending device for bending a wire for a lattice girder welding machine and a lattice girder welding machine with such a bending device.
  • a known bending device for bending a wire for a lattice girder welding machine is in the EP 2 789 406 A1 shown.
  • a known bending device comprises a feed unit for moving the wire along a feed direction, two clamping devices spaced apart from one another in the feed direction for holding the wire, wherein a clamping device is designed to be displaceable parallel to the feed direction, and a bending punch with a bending surface for bending the wire.
  • the bending punch is present between the two clamping devices and is arranged such that it is present acting on the wire transversely to the feed direction.
  • the bending punch is also rotatably mounted on the lattice girder welding machine with its end opposite the bending surface.
  • a movement of the bending punch and a movement of the feed unit of the known bending device are in particular mechanically independent of one another.
  • the invention is based on the problem of an alternative To provide bending device for bending a wire for a lattice girder welding machine.
  • the invention is based on a bending device for bending a wire for a lattice girder welding machine, the bending device comprising two clamping units for clamping the wire, a first clamping unit being present in a fixed position in the direction of a bending path and a second clamping unit being displaceable parallel to the bending path, the Bending path in a feed direction of the wire parallel to a longitudinal axis of the bent wire can be seen, the bending device comprising a bending punch, the bending device having a bending surface over which the wire runs during the bending process, the bending punch being present between the first and the second clamping unit is and wherein the bending punch is pivotally attached to a machine frame of the lattice girder welding machine at a second end.
  • a lattice girder welding machine includes, among other things, a machine frame on which the bending device can be arranged.
  • the bending surface is advantageously designed as a fixed bending roller in particular.
  • the bending surface is curved, for example.
  • the bending punch consists, for example, of a hydraulic bending cylinder in particular with a bending piston, e.g. the bending surface is present on the bending piston.
  • a displacement unit which is movable by means of a swivel arm with a first end of the bending punch connected is.
  • the essence of the invention lies in the fact that the bending surface, over which the wire runs, is arranged on the swivel arm offset from a longitudinal axis of the bending punch.
  • the displacement unit is mechanically connected to the bending punch.
  • the second clamping unit is advantageously mechanically connected to the bending die via the displacement unit. This means e.g. a movement of the displacement unit and a movement of the bending die are synchronized via the swivel arm.
  • the first end of the bending punch is advantageously rotatably connected to the pivot arm on a pivot bearing of the pivot arm.
  • a movement of the displacement unit is coupled with a movement of the second clamping unit.
  • the displacement unit is advantageously movable parallel to the feed direction, in particular the displacement unit is coupled to the second clamping unit.
  • a displacement speed of the displacement unit can be the same or different than a displacement speed of the second clamping unit. In particular in the coupled state of the displacement unit with the second clamping unit, the displacement speeds are advantageously not the same. If the displacement unit is coupled to the second clamping unit, the direct distance of the pivot bearing of the swivel arm to a clamp of the second clamping unit preferably does not change during a bending process.
  • a clamp of the first and second clamping unit is provided to clamp the wire and thus advantageously hold it there.
  • the swivel arm can be designed as a profile and / or as a carrier, for example as a T-profile carrier.
  • the is advantageous Swivel arm is dimensionally stable, bar-shaped and / or rod-like.
  • the swivel arm can also be formed from a plurality of carrier elements which are present, in particular, next to one another.
  • an elastic spring back of the wire in particular at the bending point, can be provided after the bending process.
  • the bending surface is present on the bending punch, in particular the bending surface can be fixed at the first end of the bending punch, e.g. screwed and / or welded.
  • a further advantageous modification of the invention is that the bending punch can be pivotably arranged on the machine frame and the bending punch can be positioned in such a way that a predetermined distance of the bending surface from a bending point of the wire can be set before the start of the bending process.
  • a movement of the second clamping unit in the feed direction starts asynchronously, with a time offset, or with different accelerations for a bending movement of the punch, for example due to different signal lengths or due to different drives.
  • the feed device can be designed to be driven by an electric motor and the bending punch can be designed, for example, by pneumatics. Both the feed unit and the bending punch can be driven by an electrical, hydraulic and / or pneumatic drive.
  • a vertical distance between the bending surface and the bending point is preferably adjustable.
  • a vertical distance means a distance between the bending surface and the bending point perpendicular to the direction of advance in a plane of movement that spans the second clamping unit and the bending punch.
  • the bending punch can be pivotably arranged and positioned on the machine frame such that a distance between the bending surface and a bending point of the wire does not exceed a predetermined value before the start of a bending process.
  • the predefined value can be formed as a function of an angular position of the longitudinal axis of the bending punch in relation to the feed direction, in particular of the angular position before the start of the bending process.
  • the predetermined value of the distance from the bending surface to the bending point before the start of the bending process is, for example, in a range between 0.1 mm to 2 mm, 0.2 mm to 1.5 mm and / or 0.5 mm to 1 mm.
  • the specified distance value is e.g. 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, in particular 0.5 mm.
  • the bending punch can preferably be arranged on the machine frame so as to be displaceable with a second end in a direction parallel to the direction of advance of the wire and / or parallel to the longitudinal axis of the bent wire.
  • the bending device comprises an adjustment device for linear adjustment of the bending die parallel to the direction of advance of the wire and / or parallel to the longitudinal axis of the bent wire.
  • the bending punch can be attached to the machine frame via the adjusting device.
  • the adjustment device is designed, for example, as a slide which can be moved and / or positioned on the machine frame parallel to the feed direction.
  • the displacement unit can be arranged on the machine frame and / or the second clamping unit so as to be adjustable in a direction perpendicular to the bending distance or to the feed direction of the wire.
  • the displacement unit is preferably designed to be displaceable in a direction perpendicular to the feed direction.
  • a distance between the second clamping unit and the displacement unit can be adjusted in particular in a direction perpendicular to the direction of advance of the wire in the plane of movement of the second clamping unit and the bending punch.
  • the bending surface, over which the wire runs is arranged offset to a longitudinal axis B of the bending die in the direction of the first clamping unit at the first end of the bending die.
  • the bending surface in particular at the end of the bending process, can assume a position above the first clamping unit, seen perpendicular to the feed direction, in a bending process.
  • the bending surface is advantageously provided on the bending punch in such a way that the bending surface assumes a position during the bending process, in particular at the end of the bending process, which is further from a clamp of the second Clamping unit is spaced as the clamp of the first clamping unit.
  • a distance between the bending surface and the clamp of the first clamping device is preferably smaller than a distance between the pivot bearing of the swivel arm and the clamp of the first clamping device.
  • the swivel arm is arranged with its first end pivotably on the displacement unit and with its second end, which is formed opposite the first end, is pivotably arranged at the first end of the bending die.
  • the swivel arm is connected to the displacement unit in a rotatable or pivotable manner on a first pivot bearing and to the bending punch on a second pivot bearing.
  • a distance between a first pivot axis of the pivot arm on the displacement unit and a second pivot axis of the pivot arm at the first end of the bending die is constant.
  • Pivot axes and / or axes of rotation of the two rotary bearings are advantageously spaced apart from one another.
  • the bending surface is advantageously attached to the swivel arm, e.g. screwed and / or welded.
  • the bending surface forms an extension of the swivel arm, in particular in the direction of the first clamping unit.
  • the swivel arm be L-shaped.
  • the first pivot axis of the pivot arm is formed at the first end of a long branch of the L-shaped pivot arm and the second pivot axis at an intersection of the long branch of the L-shaped pivot arm with a short one Branch of the L-shaped swivel arm.
  • the interface is present opposite the first end of the long branch.
  • the bending punch is rotatably and / or pivotably arranged on the second pivot axis.
  • a longitudinal axis of the long and a longitudinal axis of the short branch of the L-shaped swivel arm are advantageously at an angle not equal to 0 ° to one another.
  • the bending surface is advantageously present at the end of the short branch of the L-shaped swivel arm opposite the interface.
  • the swivel arm is bent and / or angled.
  • the swivel arm is designed such that, in an end position of the bending process, the swivel arm engages behind the first clamping unit on the side facing away from the second clamping unit.
  • the bending surface for example on the swivel arm, engages behind the first clamping unit, advantageously the clamp of the first clamping unit.
  • a bending device 1 for bending a bending wire 11, 12 comprises a first clamping unit 2, a second clamping unit 3, a bending punch 4 and a displacement unit 5 with a swivel arm 6 ( Figure 1 ).
  • the bending device 1 can be arranged on a frame 7 of a lattice girder welding machine 8 ( Figure 6 ).
  • the first clamping unit 2 is located on the lattice girder welding machine 8 positionally available.
  • the second clamping unit 3 and / or the displacement unit 5 can be displaced parallel to a feed direction V of the bending wire 11, 12 on the lattice girder welding machine 8, for example.
  • the displacement unit 5 can also be provided on the frame 7 of the lattice girder welding machine 8 such that a distance from the second clamping unit 3 perpendicular to the feed direction V can be set.
  • the second clamping unit 3 and / or the displacement unit 5 on rail elements 13, 14 are arranged displaceably on the frame 7.
  • the bending wire 11, 12 is moved or pushed in the feed direction V by the lattice girder welding machine in the bending machine during the processing of the bending wire 11, 12.
  • a bending section advantageously extends along the feed direction V.
  • the bending section extends between a clamp 25 of the first clamping unit 2 and a further clamp 26 of the second clamping unit 3.
  • the bending section is thus along the feed direction V between the two clamping units 2, 3 and in particular does not correspond to a distance covered by a bending point 23, 24 of the bending wire 11, 12 during a bending process in a direction perpendicular to the feed direction V of the bending wire 11, 12.
  • the area along the feed direction V in which the bending wire 11, 12 is bent can thus be seen as the bending path.
  • This area decreases or decreases during the bending process from a bending start position of the second clamping unit 3 to a bending end position of the second clamping unit 3.
  • the clamps 25 and 26 of the two clamping units 2, 3 clamp the bending wire 11, 12 and hold the bending wire 11 during the bending process , 12 each at a clamping point of the terminals 25, 26 on the clamping units 2, 3.
  • the clamp 26 of the clamping unit 3 is shown transparently for better understanding.
  • the displacement unit 5 and the second clamping unit 3 are, in particular, mechanically independent of one another available on frame 7.
  • the second clamping unit 3 can be displaced on the frame 7 and that the displacement unit 5 can be positioned on the second clamping unit 3 so that it can be positioned relative to the second clamping unit 3.
  • the displacement unit 5 is additionally guided on the frame 7 via a rail element 14, for example.
  • the bending die 4 comprises two hydraulic bending cylinders 18, 19, for example.
  • each bending cylinder 18, 19 there is a bending piston 20, 21, in particular in a linearly displaceable manner.
  • the bending cylinders 18, 19 are also spaced apart from one another in such a way that the second clamping unit 3 can be displaced between the bending cylinders 18, 19 in one bending operation.
  • the bending punch 4 is pivotably arranged, in particular positionable, with a second end 15 on the frame 7 of the lattice girder welding machine 8.
  • the bending punch 4 is arranged on the lattice girder welding machine 8 such that it can be brought into a functional position on the frame 7 with a second end 15, in particular in a direction parallel to the feed direction V of the bending wire 11, 12, before the bending process.
  • the functional position is matched, for example, to a geometry of the bent wire 11, 12. This increases the variety of geometries of the bent wire 11, 12.
  • a distance A, in particular perpendicular to the feed direction, of a bending surface 16, 17 of the bending device 1 to the bending point 23, 24 of the bending wire 11, 12 can advantageously be set in a bending start position of the bending device 1 ( Figures 4 and 5 ).
  • the bending die 4 is preferably present with its second end 15 in a fixed position on the frame 7 of the lattice girder welding machine 8 during the bending process.
  • the punch 4 performs a pivoting movement in the direction of the first clamping unit 2 about a pivot axis during the bending process from, the pivot axis being present at the second end 15 of the bending punch 4.
  • the bending die 4 is connected at its first end 22 to the ends of the bending pistons 20, 21 so as to be pivotable with the pivot arm 6 via a pivot axis 10.
  • a main direction of force of the bending punch 4 on the bending wire 11, 12 perpendicular to the feed direction V of the bending wire 11, 12 is advantageously predetermined.
  • the swivel arm 6 can be swiveled, in particular rotatably, to the displacement unit 5 via a further swivel axis 9.
  • the pivot axes 9 and 10 are spaced apart from one another.
  • the swivel arm 6 is formed from a steel beam.
  • the bending surface 16, 17 of the swivel arm 6 advantageously describes a circular path during the bending process, with a circular path radius which corresponds to the direct distance between the pivot axis 9 and the bending surface 16 or 17 corresponds to.
  • a distance of the displacement unit 5 relative to the clamp 25 of the first clamp unit 2 changes during the bending process. It is conceivable, for example, that the distance of the displacement unit 5 relative to the clamp 25 of the first clamp unit 2 changes from a starting position ( Figure 3 ) first reduced and in particular after reaching an end position of the bending piston 20, 21 of the punch 4 ( Figures 1 and 2nd ) enlarged again, or vice versa.
  • Figures 3 to 5 show the bending device 1 in the starting position at the beginning of the bending process.
  • the bending punch 4 is in the retracted state.
  • This means the Bending pistons 20, 21 are in particular completely retracted in the bending cylinders 18, 19.
  • a longitudinal axis of the swivel arm 6 is oriented approximately parallel to the feed direction V of the bending wire 11, 12 in the starting position.
  • the bending surface 16, 17 are present at a distance from the bending points 23, 24 in the starting position.
  • the bending surface 16, 17 engages the bending point 23, 24 on the bending wire 11, 12 during the bending process, so that the bending point 23, 24 of the bending wire 11, 12 is prevented from slipping along the bending surface 16, 17 during the bending process.
  • the bending wire 11, 12 in Figure 6 is shown schematically for better understanding of the viewer, continuously curved.
  • the bending wire 11, 12 is only bent by the bending device 1 and is thus unbent and straight in an opposite direction to the feed direction V in front of the bending surfaces 16, 17. This would make the bending wire, in particular the course of the bending wire in the lattice girder welding machine 8 for a viewer of the lattice girder welding machine 8 in FIG Figure 6 perspective view shown is not clearly recognizable in reality.

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

Claims (10)

  1. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8), le dispositif (1) comprenant deux unités de serrage (2, 3) pour le serrage du fil (11, 12), une première unité de serrage (2) étant prévue en position fixe dans la direction d'un parcours de cintrage, et une deuxième unité de serrage (3) étant prévue mobile parallèlement au parcours de cintrage, le parcours de cintrage devant être placé dans une direction d'alimentation du fil (11, 12) parallèlement à un axe longitudinal du fil non cintré (11, 12), le dispositif de cintrage (1) comprenant un poinçon de cintrage (4), le dispositif de cintrage (1) étant muni d'une surface de cintrage (16, 17) sur laquelle le fil (11, 12) passe pendant le processus de cintrage, le poinçon de cintrage (4) étant présent entre la première (2) et la deuxième unité de serrage (3), le poinçon de cintrage (4) pouvant être fixé pivotant par une deuxième extrémité (15) sur un bâti de machine (7) de la machine de soudage de treillis raidisseurs (8), une unité de déplacement (5) étant prévue, laquelle est reliée de manière mobile à une première extrémité (22) du poinçon de cintrage (4) au moyen d'un bras pivotant (6), caractérisé en ce que la surface de cintrage (16, 17) sur laquelle passe le fil (11, 12) est prévue sur le bras pivotant (6) de manière décalée par rapport à un axe longitudinal du poinçon de cintrage (4).
  2. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce que le poinçon de cintrage (4) peut être disposé pivotant de telle sorte sur le bâti de la machine (7) et le poinçon de cintrage (4) peut être positionné de telle sorte qu'une distance prédéterminée entre la surface de cintrage (16, 17) et un point de cintrage (23, 24) du fil (11, 12) peut être réglée avant le début de l'opération de cintrage.
  3. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce que le poinçon de cintrage (4) peut être disposé et positionné pivotant de telle sorte sur le bâti de la machine (7) qu'une distance entre la surface de cintrage (16, 17) et un point de cintrage (23, 24) du fil (11, 12) ne dépasse pas une valeur prédéterminée avant le début d'une opération de cintrage.
  4. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce qu'un mouvement de l'unité de déplacement (5) est couplé à un mouvement de la deuxième unité de serrage (3).
  5. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce que l'unité de déplacement (5) peut être disposée sur le bâti de la machine (7) de manière à pouvoir être réglée dans une direction perpendiculaire au parcours de cintrage ou à la direction d'avance du fil (11, 12).
  6. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce que la surface de cintrage (16, 17) sur laquelle passe le fil (11, 12) est disposée à la première extrémité (22) du poinçon de cintrage (4) de manière décalée en direction de la première unité de serrage (2) par rapport à un axe longitudinal du poinçon de cintrage (4).
  7. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce que le bras pivotant (6) est disposé de manière pivotante sur l'unité de déplacement (5) avec sa première extrémité et de manière pivotante sur la première extrémité (22) du poinçon de cintrage (4) avec sa deuxième extrémité formée à l'opposé de la première extrémité.
  8. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce qu'une distance entre un premier axe de pivotement (9) du bras pivotant (6) sur l'unité de déplacement (5) et un deuxième axe de pivotement (10) du bras pivotant (6) sur la première extrémité (22) du poinçon de cintrage (4) est constante.
  9. Dispositif de cintrage (1) pour le cintrage d'un fil (11, 12) pour une machine de soudage de treillis raidisseurs (8) selon l'une des revendications précédentes, caractérisé en ce que le bras pivotant (6) est en forme de L.
  10. Machine à cintrer (8) avec un dispositif de cintrage (1) selon l'une des revendications précédentes.
EP17175798.2A 2016-07-15 2017-06-13 Dispositif de pliage d'un fil pour une machine de soudage de poutre en treillis Active EP3269466B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016113036.2A DE102016113036A1 (de) 2016-07-15 2016-07-15 Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine

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EP3269466A1 EP3269466A1 (fr) 2018-01-17
EP3269466B1 true EP3269466B1 (fr) 2020-04-22

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DE (1) DE102016113036A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016113036A1 (de) 2016-07-15 2018-01-18 Mbk Maschinenbau Gmbh Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023898A1 (fr) 1979-08-03 1981-02-11 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Machine pour la fabrication automatique de poutres en treillis soudées
DE4442929A1 (de) 1993-12-27 1995-06-29 Filzmoser Maschinenbau Ges M B Biegemaschine zum Biegen von Diagonalstäben für Gitterträger o. dgl.
WO2013000551A1 (fr) 2011-06-30 2013-01-03 Progress Maschinen & Automation Ag Procédé et installation destinés à la fabrication continue d'une poutre à treillis
DE102013112482A1 (de) 2013-01-16 2014-07-17 Franz Filzmoser Vorrichtung zum Biegen von Bügeldrähten für Gitterträger
EP2789406A1 (fr) 2013-04-12 2014-10-15 Progress Maschinen & Automation AG Cintreuse
EP3141314A1 (fr) 2015-09-09 2017-03-15 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Procédé et dispositif de fabrication d'une poutre à treillis continue
DE102016113036A1 (de) 2016-07-15 2018-01-18 Mbk Maschinenbau Gmbh Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023898A1 (fr) 1979-08-03 1981-02-11 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Machine pour la fabrication automatique de poutres en treillis soudées
DE4442929A1 (de) 1993-12-27 1995-06-29 Filzmoser Maschinenbau Ges M B Biegemaschine zum Biegen von Diagonalstäben für Gitterträger o. dgl.
WO2013000551A1 (fr) 2011-06-30 2013-01-03 Progress Maschinen & Automation Ag Procédé et installation destinés à la fabrication continue d'une poutre à treillis
DE102013112482A1 (de) 2013-01-16 2014-07-17 Franz Filzmoser Vorrichtung zum Biegen von Bügeldrähten für Gitterträger
EP2789406A1 (fr) 2013-04-12 2014-10-15 Progress Maschinen & Automation AG Cintreuse
EP3141314A1 (fr) 2015-09-09 2017-03-15 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Procédé et dispositif de fabrication d'une poutre à treillis continue
DE102016113036A1 (de) 2016-07-15 2018-01-18 Mbk Maschinenbau Gmbh Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine

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DE102016113036A1 (de) 2018-01-18

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