EP2789406B2 - Cintreuse - Google Patents

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Publication number
EP2789406B2
EP2789406B2 EP14001045.5A EP14001045A EP2789406B2 EP 2789406 B2 EP2789406 B2 EP 2789406B2 EP 14001045 A EP14001045 A EP 14001045A EP 2789406 B2 EP2789406 B2 EP 2789406B2
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EP
European Patent Office
Prior art keywords
bending
bending machine
machine according
mounting mechanism
push rod
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.)
Active
Application number
EP14001045.5A
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German (de)
English (en)
Other versions
EP2789406A1 (fr
EP2789406B1 (fr
Inventor
Erich Nussbaumer
Helmut Stofner
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.)
Progress Holding AG
Original Assignee
Progress Holding AG
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Filing date
Publication date
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Application filed by Progress Holding AG filed Critical Progress Holding AG
Priority to PL14001045T priority Critical patent/PL2789406T5/pl
Publication of EP2789406A1 publication Critical patent/EP2789406A1/fr
Application granted granted Critical
Publication of EP2789406B1 publication Critical patent/EP2789406B1/fr
Publication of EP2789406B2 publication Critical patent/EP2789406B2/fr
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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
    • 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
    • B21D11/10—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
    • B21D11/125—Bending wire nets
    • 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
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • 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
    • B21D7/04—Bending rods, profiles, or tubes over a movably-arranged forming menber
    • 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
    • B21F1/04—Undulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor

Definitions

  • the present invention relates to a bending machine according to the preamble of claim 1.
  • Bending machines which bring steel wire, for example, into a "zigzag" shape with the aid of a bending ram, the ram being movable by two linear drives. At a free end of the bending ram there are bending surfaces which exert pressure against the wire, the wire itself being held by two clamping mechanisms.
  • a feed device is also provided so that the working rhythm consists of the steps of feeding the wire, fixing the wire by two clamping mechanisms, bending the wire by the bending ram, releasing the clamping mechanisms, feeding the wire and then clamping the wire again.
  • a disadvantage of the prior art bending machines is that the use of two linear drives means that the additional ram itself is subject to high bending loads, which is why it has to be dimensioned relatively large.
  • Another disadvantage that arises from two linear drives is that only certain bending angles are possible with one structure. In order, for example, to produce lattice girders with different geometries, such prior art bending machines had to be converted at great expense.
  • the DE 44 42 929 A1 discloses a bending machine for bending diagonal bars for lattice girders.
  • the bending punch is designed as a hydraulic cylinder. Due to the construction, this is subjected to relatively high bending loads.
  • the DE 30 14 282 A1 represents another state of the art.
  • the object of the invention is to provide a bending machine that is designed to save on material.
  • the ram being supported in a translational and rotational manner by a first bearing device and by a second bearing device, with the first bearing device and the second bearing device being designed to align the ram during the bending process in the direction of a force to be exerted on the wire.
  • the bending ram is always aligned in the direction of the force that it is intended to exert on the wire. As a result, it is subjected to less bending stress and can therefore be made smaller.
  • Another advantage is the extended applicability. Because of the additional rotational movement, significantly more bending angles can be realized without having to convert the bending machine itself beforehand. As a result, it is then possible that a device for the production of lattice girders, the path machine of which is designed according to the invention, lattice girders of any geometry, as for example in the Austrian patent application A 174/2013 were disclosed can be produced.
  • the improvement described which eliminates conversions for different lattice girder geometries, makes it possible to produce lattice girders in a just-in-time process. That said, these lattice girders can be made to order and in small quickly economical quantities are produced. Batch sizes with a quantity of 1 are also possible.
  • the machine can thus be integrated into a precast concrete plant, for example, and provide the required lattice girders immediately before the concreting process. With devices for the production of lattice girders, as they are known in the prior art, this is not possible due to the necessary conversion work and larger quantities of the same lattice girders always had to be produced for profitable management, since the conversion costs time and thus productivity.
  • the plunger has a fixed length that cannot be changed during operation.
  • the design can be simplified as a result, since complex hydraulic cylinders in the ram itself are avoided, for example.
  • the first bearing device articulates the ram on an end area of the ram and/or that the second bearing device articulates the ram on an end area of the ram.
  • the end areas should not be longer than 20% based on the total length of the ram and of course counted away from one end of the ram so as not to lose the technical effect.
  • the simultaneous translational and rotational mounting of the ram can be solved in a particularly simple manner in that the first mounting device comprises a crank mechanism and/or in that the second mounting device comprises a connecting rod.
  • a first, preferably rotary, drive for moving the crank mechanism and/or a second, preferably linear, drive for moving the connecting rod can then be provided.
  • Protection is also sought for a device for producing lattice girders with a bending machine according to one of claims 1 to 7 and a welding device for welding diagonal chords produced by means of the bending machine with lower chords and an upper chord.
  • steel Due to its material properties, steel is the preferred material for the manufacture of lattice girders.
  • the bending ram 2 is mounted on the machine frame 10 via a first mounting device 11 and a second mounting device 12 .
  • the first bearing device 11 has a crank mechanism 3.
  • the second bearing device 12 has a connecting rod 7.
  • the wire 1 is fixed by the clamping device 4 and the further clamping device 5 .
  • the further clamping mechanism must also be moved by a linear drive, since otherwise the wire would be stretched. It is important here that the clamping mechanism is also moved at exactly the right speed, since compression of the wire 1 is also undesirable.
  • FIG 3 is finally shown how the bending is completed by the ram 2.
  • the ram 2 can be moved downwards again by the first drive 13 and the second drive 14 , the clamping on the clamping mechanisms 4 , 5 can be released and the wire 1 can be fed by the feed device 9 .
  • the bending machine 20 is then ready for a new bending process.
  • FIG 4 A perspective view of the bending machine 20 is shown.
  • two wires 1 are bent at the same time. This is particularly advantageous in the manufacture of lattice girders, since the bent wires 1 can then be used as diagonal chords 22, and they are required in pairs for a lattice girder.
  • both the crank 3 and the connecting rod 7 are designed in a fork design.
  • the bending surfaces lie on a bolt that is guided both through the ends of the fork-shaped push rod 7 and through a fork-shaped end of the ram 2 .
  • figure 5 shows schematically a device for the production of lattice girders.
  • Spools 15 on which suitable wire is wound are delivered. This is unwound by unwinding devices 16 and, in the case of the upper chords 23 and lower chords 21 , fed to a straightening machine 17 .
  • the wire that is intended for the diagonal belts 22 is fed to the bending machine 20 .
  • the lower chords, the upper chord and the diagonal chords produced in the bending machine 20 are fed together to the welding device 25 in which they are welded to form a lattice girder 24 .
  • the lattice girders are then expediently deposited in a storage site 18 .
  • figure 6 shows a side view of a lattice girder.
  • the most important dimensions of a lattice girder can be seen here.
  • the angles ⁇ and ⁇ between the diagonal chord 22 and the lower chord 21 are also important.
  • the bending machine according to the invention permits a completely free choice of the parameters T, H, ⁇ and ⁇ . In fact, even obtuse angles for one of the angles ⁇ or ⁇ pose no technical problem.
  • Typical values for the height H are 60 mm to 450 mm.
  • Typical values for the pitch distances T are 150 mm to 250 mm.
  • the ram does not have to be rod-shaped. Any other geometries, in particular one bent into a sickle shape, are conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Claims (12)

  1. Machine de cintrage avec un coulisseau (2) de préférence en forme de tige, lequel dispose de tout au moins une surface de cintrage (6) en vue du cintrage de tout au moins un fil (1), et lequel coulisseau (2) est logé au niveau d'un bâti de machine (10), au moyen d'un premier mécanisme à palier (11) et d'un deuxième mécanisme à palier (12) ;
    selon laquelle le coulisseau (2) est logé de manière à pouvoir être déplacé en translation et en rotation par l'intermédiaire du premier mécanisme à palier (11) et du deuxième mécanisme à palier (12) ;
    caractérisée en ce que le premier mécanisme à palier (11) et le deuxième mécanisme à palier (12) sont réalisés de façon à aligner le coulisseau (2) dans le sens d'une force devant être exercée sur le fil (2) pendant le processus de cintrage.
  2. Machine de cintrage selon la revendication 1, caractérisée en ce que le coulisseau (2) présente une longueur fixe, invariable pendant le fonctionnement.
  3. Machine de cintrage selon la revendication 1 ou 2, caractérisée en ce que le coulisseau (2) est articulé par le premier mécanisme à palier (11) au niveau d'une zone d'extrémité du coulisseau (2).
  4. Machine de cintrage selon l'une des revendications 1 à 3, caractérisée en ce que le coulisseau (2) est articulé par le deuxième mécanisme à palier (12) au niveau d'une zone d'extrémité du coulisseau (2).
  5. Machine de cintrage selon l'une des revendications 1 à 4, caractérisée en ce que le premier mécanisme à palier (11) comprend un mécanisme à manivelle (3).
  6. Machine de cintrage selon l'une des revendications 1 à 5, caractérisée en ce que le deuxième mécanisme à palier (12) comprend une bielle de poussée (7).
  7. Machine de cintrage selon la revendication 5 ou 6, caractérisée en ce qu'un premier entraînement (13), de préférence en rotation, est prévu en vue du déplacement du mécanisme à manivelle (3) et/ou un deuxième entraînement (14), de préférence linéaire, est prévu en vue du déplacement de la bielle de poussée (7).
  8. Machine de cintrage selon l'une des revendications 1 à 7, caractérisée en ce qu'un mécanisme de serrage (4) est fixé au bâti de machine (10) ; et
    caractérisée en ce qu'un autre mécanisme de serrage (5) est prévu, lequel peut, de préférence, être déplacé de manière linéaire par rapport au bâti de machine (10).
  9. Machine de cintrage selon la revendication 8, caractérisée en ce qu'une section du tout au moins un fil (1) peut être fixée de manière amovible, respectivement au niveau du mécanisme de serrage (4) et de l'autre mécanisme de serrage (5).
  10. Machine de cintrage selon l'une des revendications 1 à 9, caractérisée en ce qu'un mécanisme d'avance (9) est prévu en vue de l'avance du tout au moins un fil (1).
  11. Machine de cintrage selon l'une des revendications 1 à 10, caractérisée en ce que, exactement, deux surfaces de cintrage (6) sont prévues en vue du cintrage de deux fils (1), exactement.
  12. Mécanisme destiné à la fabrication de poutres en treillis avec une machine de cintrage (20) selon l'une des revendications 1 à 11 et avec un mécanisme de soudage (25) destiné au soudage de sangles diagonales (22), avec des sangles inférieures (21) et des sangles supérieures (23), lesquelles sont fabriquées au moyen de la machine de cintrage (20).
EP14001045.5A 2013-04-12 2014-03-21 Cintreuse Active EP2789406B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14001045T PL2789406T5 (pl) 2013-04-12 2014-03-21 Maszyna do gięcia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA297/2013A AT514109B1 (de) 2013-04-12 2013-04-12 Biegemaschine

Publications (3)

Publication Number Publication Date
EP2789406A1 EP2789406A1 (fr) 2014-10-15
EP2789406B1 EP2789406B1 (fr) 2018-07-04
EP2789406B2 true EP2789406B2 (fr) 2022-01-19

Family

ID=50433898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14001045.5A Active EP2789406B2 (fr) 2013-04-12 2014-03-21 Cintreuse

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EP (1) EP2789406B2 (fr)
AT (1) AT514109B1 (fr)
PL (1) PL2789406T5 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514109B1 (de) 2013-04-12 2015-02-15 Progress Maschinen & Automation Ag Biegemaschine
EP3888813B1 (fr) 2015-09-09 2022-09-07 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Dispositif de cintrage pour la fabrication d'une poutre a treillis continue
DE102016113036A1 (de) * 2016-07-15 2018-01-18 Mbk Maschinenbau Gmbh Biegevorrichtung zum Biegen eines Drahts für eine Gitterträgerschweißmaschine
IT201700064059A1 (it) * 2017-06-09 2018-12-09 A L F A Costr Metalmeccaniche S R L Macchina piegatrice

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014282A1 (de) † 1980-04-15 1981-10-22 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Vorrichtung zur kontinuierlichen herstellung von zickzackfoermigen strebenschlangenbeliebiger hoehen fuer fachwerktraeger

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394339A1 (fr) * 1977-06-14 1979-01-12 Davum Dispositif de pliage en zigzag de fils metalliques
DE3312764A1 (de) * 1983-04-09 1984-10-18 Fr. Xaver Bayer Isolierglasfabrik Kg, 7807 Elzach Verfahren und vorrichtung zum biegen von abstandhalter-profilen fuer isolierglasscheiben
DE8616377U1 (fr) * 1986-06-19 1987-10-22 Lenhardt, Karl, 7531 Neuhausen, De
AT405031B (de) * 1993-12-27 1999-04-26 Filzmoser Maschinenbau Ges M B Biegemaschine zum biegen von diagonalstäben für gitterträger od. dgl.
DE19839444C1 (de) * 1998-08-29 2000-01-05 Bayer Isolierglasfab Kg Verfahren und Vorrichtung zum Biegen eines Hohlprofiles zur Herstellung eines Abstandhalter-Rahmens für Isolierglasscheiben
AT410909B (de) * 2000-05-09 2003-08-25 Lisec Peter Verfahren und vorrichtung zum biegen von hohlprofilleisten zu abstandhalterrahmen für isolierglasscheiben
BR0112449B1 (pt) * 2000-07-12 2010-10-19 processo e aparelho para formar um modelo de arame para válvula cardìaca.
AT511656B1 (de) * 2011-06-30 2015-01-15 Progress Maschinen & Automation Ag Verfahren und einrichtung zur kontinuierlichen herstellung eines gitterträgers
AT514109B1 (de) 2013-04-12 2015-02-15 Progress Maschinen & Automation Ag Biegemaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014282A1 (de) † 1980-04-15 1981-10-22 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Vorrichtung zur kontinuierlichen herstellung von zickzackfoermigen strebenschlangenbeliebiger hoehen fuer fachwerktraeger

Also Published As

Publication number Publication date
AT514109A1 (de) 2014-10-15
EP2789406A1 (fr) 2014-10-15
AT514109B1 (de) 2015-02-15
PL2789406T5 (pl) 2022-04-19
EP2789406B1 (fr) 2018-07-04
PL2789406T3 (pl) 2018-11-30

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