EP3888813A1 - Dispositif cintrage pour la fabrication d'une poutre a treilis continue - Google Patents

Dispositif cintrage pour la fabrication d'une poutre a treilis continue Download PDF

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Publication number
EP3888813A1
EP3888813A1 EP21168732.2A EP21168732A EP3888813A1 EP 3888813 A1 EP3888813 A1 EP 3888813A1 EP 21168732 A EP21168732 A EP 21168732A EP 3888813 A1 EP3888813 A1 EP 3888813A1
Authority
EP
European Patent Office
Prior art keywords
bending
wire
diagonal
chord
mandrel
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
EP21168732.2A
Other languages
German (de)
English (en)
Other versions
EP3888813B1 (fr
Inventor
Robert Tremmel
Martin Springer
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
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.)
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Publication date
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Priority to EP21168732.2A priority Critical patent/EP3888813B1/fr
Publication of EP3888813A1 publication Critical patent/EP3888813A1/fr
Application granted granted Critical
Publication of EP3888813B1 publication Critical patent/EP3888813B1/fr
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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
    • 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
    • B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material

Definitions

  • the invention relates to a bending device for a system for the continuous production of a lattice girder, in which a zigzag-shaped diagonal chord wire running back and forth in the lattice girder can be produced in one production direction, with three bending mandrels arranged transversely to the production direction, of which two bending mandrels are constantly on at a variable distance from one another the height level of the diagonal belt wire supplied and the third bending mandrel is between the two other bending mandrels and can be moved up and down from a starting position along the diagonal wire and actively causes the bending with an adjustable upper reverse height.
  • the disadvantages are serious, as the customer often only orders a limited number of each type of beam, be it lattice beams of different heights or widths or those with belts of different thicknesses or with different zigzag diagonal belts.
  • the time-consuming conversion of the welding and bending machine makes the orders considerably more expensive.
  • the invention is based on the object of providing a bending device for lattice girders of all types without time-consuming reconstruction of the welding and bending machine. A system that enables this should also be provided.
  • the invention consists in a bending device of the type mentioned that, for the purpose of bending the individual prongs of the diagonal belt wire, the up and down movable mandrel along an approximately circular path that lies in a vertical plane running through the respective diagonal wire, and additionally along the radius of the Circular path is movable, so that the prongs of the diagonal belts can be designed either isosceles or with different lengths and differently inclined legs, which is caused by the fact that the bending mandrel that can be moved up and down is attached to one end of a swivel arm, at the other end of which a roller is attached attacks, the shaft of which is mounted at its two ends at the end of a first of two parallel links, the other end of one link being fixed to the side of a rotatable first gear, the rotatable shaft of which remains on the same axis as the second at the level of the diagonal wire supplied ends, is stationary bending mandrel, the two links together with the roller and the pivot arm bearing the up and down
  • One embodiment of the bending device is characterized in that the second bending mandrel remaining at the level of the fed diagonal wire is fixed and the first bending mandrel can be clamped to the moving diagonal wire and can run with it up to the desired bending point.
  • the bending device can also be part of a system for the continuous production of a lattice girder, the lattice girder being welded together from two lower chord wires and one upper chord wire, as well as from one diagonal chord wire running back and forth in a zigzag shape between the upper chord and each of the two lower chords, and the lower chords and the upper chord lie in the cross-section of the lattice girder at the corners of a triangle, at the tip of which the upper belt is located, in which system all five belt wires, starting from a plurality of wire threading and wire changing devices, can be fed to a feed device and from there in parallel in the production direction of a welding and bending machine , in which first a bending device is provided for the bending of the two diagonal chord wires, and wherein the feed device for the upper chord wire is adjustable in height so that the diagonal chords optionally with different high points to produce a Lattice girders with different heights can be formed, and the welding and bending machine
  • FIG. 1 the system as a whole schematically in a side view
  • Fig. 2 the same plant in plan view or show the Fig. 3-5 the principle of the bending mechanism of the system for the diagonal chord wires of the lattice girder in perspective or in plan view or side view
  • Fig. 6 a perspective view of the bending mechanism, but different from that of FIG Fig. 3 opposite side seen
  • Figures 7, 7A an exit Fig.
  • wire threading and changing devices for each of the five chord wires of the lattice girder are designated with 4, namely for two lower chord wires 1, 1 ', one upper chord wire 2 and two diagonal chord wires 3, 3', each of which on the finished girder between the upper chord 2 and one of the two lower chords 1, 1 'zigzag back and forth.
  • the belt wires 1, 1 ', 2, 3, 3' and the belts made from them of the lattice girder are labeled the same.
  • the wire threading and changing devices 4 can each be brought in the direction of the line of the wire located in the following feed devices 6 and reversible in their running direction.
  • a pair of scissors arranged in front of or on the respective feed device 6 on the input side is denoted by 5, which scissors can be actuated independently or together with the other scissors 5.
  • the belt wires 1, 1 ', 2, 3, 3' can each be threaded and cut together or individually.
  • the scissors 5 for the upper chord wire 2 is located in the middle of a feed device 6 intended for this, which is adjusted in height together with the scissors 5 in the event that the height of the lattice girder needs to be changed.
  • the scissors 5 for the diagonal chord wires 3, 3 'and for the lower chord wires 1, 1' are arranged in front of the respective feed devices 6 '.
  • a bending device 8 for bending the diagonal chord wires 3, 3 'into a zigzag shape In the direction of production indicated by an arrow 7, there follows a bending device 8 for bending the diagonal chord wires 3, 3 'into a zigzag shape.
  • the bending device 8 has three bending mandrels 9-11, of which two bending mandrels 9, 10 are constantly at the level of the supplied diagonal chord wire 3 or 3 'at a distance from one another and the third bending mandrel 11 is from a starting position between the two other bending mandrels 9, 10 and can be moved up and down along the diagonal wire 3 or 3 '.
  • the upper reversal point of the bending mandrel 11 which can be moved up and down is adjustable in height in the event that the height of the lattice girder has to be adjusted.
  • the zigzag shape of the diagonal belt wires 3, 3 ' has upper 12 and lower bends 13 on.
  • the bending device 8 is further below with reference to FIG Fig. 3-6 described in more detail.
  • the bending device 8 is followed by a welding device 14 for welding the upper chord wire 2 to the upper bends 12 of the diagonal chord wires 3, 3 ', as well as a gripping and transport device 15 engaging the upper chord 2.
  • a welding device 16 for welding the lower bends 13 of the diagonal chord wires 3, 3 'with the lower chord wires 1, 1'.
  • shears 17 on the outlet side can be provided for cutting the lattice girders to length in the event of large-scale production.
  • lattice girders of all types can be produced without time-consuming reconstruction of the welding and bending machine.
  • the wires to be exchanged are cut by means of the input-side scissors 5, returned to their respective wire threading and changing device 4 by the shortest possible route and then replaced by the new wire threading and changing device 4, which is already available with the appropriate wire, in which the wire then only needs to must be advanced to the respective feed device 6.
  • Fig. 3-6 show the principle of the bending device 8, which can be used independently of the described inlet section of the system, but preferably after it.
  • the bending mandrel 11, which actively effects the bending through its upward movement out of the feed direction of the diagonal wire 3 or 3 ', is between the two constantly along the feed direction of the diagonal wire arranged bending mandrels 9, 10 arranged at one end of a pivot arm 20.
  • the second 10 in the production direction 7 is fixed and the first bending mandrel 9 clamps and runs on the moving diagonal wire 3 or 3' with this up to the desired bending point, such as in particular the Figures 7, 7A, 8 and 8A demonstrate.
  • the reverse height of the upward and downward movable, third bending mandrel 11 is adjustable, as has already been mentioned above.
  • a roller 23 acts on the movable bending mandrel 11 opposite end of the pivot arm 20, the shaft 24 of which is fixed at both ends to one of two parallel links 25 and 25 '.
  • the other end of a first 25 of the two links 25, 25 ' is fixed to a rotationally drivable shaft 27 and to the side of a first gear wheel 26 driven by the shaft 27.
  • the shaft 27 is coaxial with the axis of the second, stationary bending mandrel 10.
  • bending beams with isosceles prongs of the diagonal belts as shown in FIG Fig. 3 left and in Fig. 5 are shown on the right, or bending beams with different lengths and inclined legs 31, 32 of the prongs of the diagonal belts 3, 3 'can be produced, as shown in FIG Fig. 3 right and in Fig. 5 are shown on the left.
  • the differently inclined legs 31, 32 are connected by sections 33 running in the carrier direction between the prongs of the diagonal chords 3, 3 ', which are welded to the lower chords 1, 1'.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
EP21168732.2A 2015-09-09 2015-09-09 Dispositif de cintrage pour la fabrication d'une poutre a treillis continue Active EP3888813B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21168732.2A EP3888813B1 (fr) 2015-09-09 2015-09-09 Dispositif de cintrage pour la fabrication d'une poutre a treillis continue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21168732.2A EP3888813B1 (fr) 2015-09-09 2015-09-09 Dispositif de cintrage pour la fabrication d'une poutre a treillis continue
EP15002639.1A EP3141314A1 (fr) 2015-09-09 2015-09-09 Procédé et dispositif de fabrication d'une poutre à treillis continue

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP15002639.1A Division EP3141314A1 (fr) 2015-09-09 2015-09-09 Procédé et dispositif de fabrication d'une poutre à treillis continue

Publications (2)

Publication Number Publication Date
EP3888813A1 true EP3888813A1 (fr) 2021-10-06
EP3888813B1 EP3888813B1 (fr) 2022-09-07

Family

ID=54106090

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21168732.2A Active EP3888813B1 (fr) 2015-09-09 2015-09-09 Dispositif de cintrage pour la fabrication d'une poutre a treillis continue
EP15002639.1A Ceased EP3141314A1 (fr) 2015-09-09 2015-09-09 Procédé et dispositif de fabrication d'une poutre à treillis continue

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15002639.1A Ceased EP3141314A1 (fr) 2015-09-09 2015-09-09 Procédé et dispositif de fabrication d'une poutre à treillis continue

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EP (2) EP3888813B1 (fr)

Families Citing this family (5)

* 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
CN108637130A (zh) * 2018-08-03 2018-10-12 安平县宏宇网业有限公司 钢丝折弯机及用该机进行钢丝折弯的方法
CN110523820B (zh) * 2019-08-27 2024-07-05 建科机械（天津）股份有限公司 摆动式桁架步进装置及桁架生产系统
CN110614335B (zh) * 2019-10-24 2024-05-14 东莞市精焊机械科技有限公司 自动焊线钢扣机
WO2024084532A1 (fr) * 2022-10-20 2024-04-25 Awm Srl Procédé et appareil de production de poutres en treillis métallique et poutre en treillis

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487861A (en) 1967-08-29 1970-01-06 Stryco Mfg Co Truss making and method
AT283868B (de) 1968-02-12 1970-08-25 Franz Filzmoser Einrichtung zum Biegen von Stäben u.dgl.
DE2063041A1 (de) 1970-11-26 1972-06-15 Filzmoser, Franz, Wels (Österreich) Einrichtung zum Biegen von Stäben u.dgl.
FR2118039A1 (fr) * 1970-12-10 1972-07-28 Evg Entwicklung Verwert Ges
EP0355776A2 (fr) * 1988-08-23 1990-02-28 Hugo Bittlmayer Procédé pour armer des plaques en béton, dispositif pour la mise en oeuvre du procédé ainsi que poutres en treillis
GB2346575A (en) 1999-02-10 2000-08-16 Structherm Ltd Truss machine
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
EP2789406A1 (fr) 2013-04-12 2014-10-15 Progress Maschinen & Automation AG Cintreuse

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487861A (en) 1967-08-29 1970-01-06 Stryco Mfg Co Truss making and method
AT283868B (de) 1968-02-12 1970-08-25 Franz Filzmoser Einrichtung zum Biegen von Stäben u.dgl.
DE2063041A1 (de) 1970-11-26 1972-06-15 Filzmoser, Franz, Wels (Österreich) Einrichtung zum Biegen von Stäben u.dgl.
FR2118039A1 (fr) * 1970-12-10 1972-07-28 Evg Entwicklung Verwert Ges
EP0355776A2 (fr) * 1988-08-23 1990-02-28 Hugo Bittlmayer Procédé pour armer des plaques en béton, dispositif pour la mise en oeuvre du procédé ainsi que poutres en treillis
GB2346575A (en) 1999-02-10 2000-08-16 Structherm Ltd Truss machine
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
EP2789406A1 (fr) 2013-04-12 2014-10-15 Progress Maschinen & Automation AG Cintreuse

Also Published As

Publication number Publication date
EP3141314A1 (fr) 2017-03-15
EP3888813B1 (fr) 2022-09-07

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