EP0435769A1 - Verfahren und automatische Vorrichtung zur Herstellung einer Stahlbewehrung und mit diesem Verfahren hergestellte Stahlbewehrung - Google Patents

Verfahren und automatische Vorrichtung zur Herstellung einer Stahlbewehrung und mit diesem Verfahren hergestellte Stahlbewehrung Download PDF

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Publication number
EP0435769A1
EP0435769A1 EP90403772A EP90403772A EP0435769A1 EP 0435769 A1 EP0435769 A1 EP 0435769A1 EP 90403772 A EP90403772 A EP 90403772A EP 90403772 A EP90403772 A EP 90403772A EP 0435769 A1 EP0435769 A1 EP 0435769A1
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EP
European Patent Office
Prior art keywords
wire
frame
transverse
cross
welding
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.)
Withdrawn
Application number
EP90403772A
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English (en)
French (fr)
Inventor
Paul Canobio
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ACOR ACIERS DE CONSTRUCTION RATIONALISES
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ACOR ACIERS DE CONSTRUCTION RATIONALISES
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Application filed by ACOR ACIERS DE CONSTRUCTION RATIONALISES filed Critical ACOR ACIERS DE CONSTRUCTION RATIONALISES
Publication of EP0435769A1 publication Critical patent/EP0435769A1/de
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    • 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
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • B21F27/125—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching individual stirrups to longitudinal wires

Definitions

  • the present invention relates to a method and a device for producing a parallelepipedic or prismatic metal frame usable in particular in reinforced concrete constructions.
  • the present invention also relates to a metal frame produced by this method.
  • the reinforcements are generally made up of bars forming longitudinal angle ropes and sometimes of longitudinal intermediate ropes linked together by polygonal transverse frames formed by transverse wires and welded to said ropes.
  • the methods for producing such reinforcements include independent operations of straightening, shearing of the longitudinal strands, welding of the cross strands on the flat strands to form a flat welded panel and also operations of folding the strands cross of the panel to form the frames of the frame.
  • the cross wires are provided with a folded end forming a pin allowing the frames to be closed by the elasticity of the metal, the pin clinging to an end thread of the panel.
  • the reinforcing frames are not rigidly closed and a bending at the end of the cross wires, to form a pin or a hook closing the frame, causes a lack of mechanical rigidity perpendicular to the struts and difficulties in setting in place of the frames on the loading areas, the manipulations deforming the frames of the frame by their weight when booting.
  • the welding operation precedes the folding operation, which can cause, during said folding, the tearing of the welds between the frames and the struts.
  • the object of the present invention is to avoid, inter alia, the various drawbacks listed above and to propose a method and an automatic device for the production of reinforcements, in particular of steel, for example parallelepipedic or prismatic, giving continuous reinforcement to frames. closed, with no need for reserve or storage of material other than the basic metal wire spools.
  • the two remaining free parts of the transverse wire are welded forming the frame of the frame on an intermediate thread.
  • the folding and / or welding operations are carried out simultaneously on several transverse wires at different successive stations.
  • the present invention also relates to a metal frame in particular for constructions in reinforced concrete, produced by the process according to the invention.
  • Fig. 1 there is shown the device, according to the invention, for producing a metal frame, for example steel, quadrangular with six longitudinal threads, four of which form corner threads 1, the other two threads being intermediate threads 2 (Fig. 3).
  • a metal frame for example steel, quadrangular with six longitudinal threads, four of which form corner threads 1, the other two threads being intermediate threads 2 (Fig. 3).
  • the device comprises a frame 10 formed of a metal frame 11. This frame is provided with parallel horizontal guides formed by at least two cylindrical columns 12 placed between two column supports 13.
  • the horizontal guide means A, B and C are formed by rectilinear tubes 14, 15 and 16 respectively, parallel, adjustable in spacing and defining the cross-sectional dimensions of the frame and the number of struts 1 and 2 of the frame.
  • the guide means B and C are slidably mounted on the columns 12 by means of supports 17 and 18 respectively.
  • the first bending and welding station E is secured, on the lower side of the frame, by means of guide C and slides on the columns 12 also by means of the supports 18.
  • the second folding and welding station F and the welding station G also slide on the columns 12 by means of supports 19 and 20 respectively.
  • the horizontal displacement of the guide means B and C and of the folding and / or welding stations E, F and G on the columns 12 makes it possible to modify and adjust as a function of the displacement pitch struts 1 and 2, the spacing of the frames 4 formed by the cross-brace wires 3 of which the armature is made up.
  • the means H for lengthening the armature comprises, subject to the frame 10, but which can be independent, a shear 21 which cuts all of the threads 1 and 2 of the quadrangular armature, the triggering of said shear 21 being controlled by a program defining the length of the reinforcement produced.
  • the means D of displacement of the cross-wire 3 comprise a straightening system, not shown, of said cross-wire, a guide tube 22, and rollers, not shown, measuring the length of the cross-wire 3.
  • the length of the cross wire 3 is defined by an electronic programming selection, then said cross wire is cut by a shear 23 to the desired length corresponding substantially to the perimeter of a frame 4 of the frame.
  • the welding station E comprises, for example for each bottom angle 1, a fixed tool 24 provided with a groove 25 in which the corresponding angle guide slides.
  • This groove can be constituted by a shoulder in which the angle thread 1 is supported so that, as will be seen later, the cross-wire 3 can be wound around the corresponding thread 1 which then forms a folding corner.
  • the two symmetrical fixed tools 24 determine a distance corresponding to the length of one side of the frame 4 of the frame.
  • each stationary tool 24 is attached a movable tool 26.
  • each stationary tool 24 is provided with a welding electrode, not shown, which when the movable tool 26 presses the cross wire against the corresponding angle wire 1 performs the electrical spot welding between the cross wire 3 and the two wire angle 1 lower, said welds being made after the folding operation.
  • the folding and welding station F comprises, for example for each top angle thread 1, a fixed tool 27 provided with a groove 28 in which the corresponding angle thread slides.
  • This groove can also be constituted by a shoulder in which the angle strand 1 bears so that the cross-strand 3 can be wound around the strand 1 which then forms a folding corner.
  • the two symmetrical fixed tools 27 also determine a spacing corresponding to the length of one side of the frame 4 of the frame.
  • Each stationary tool 27 is associated with a movable tool 29.
  • each stationary tool 27 is provided with a welding electrode, not shown, which when said movable tool presses the cross-wire 3 against the corner thread 1 corresponding, carries out the electrical welding by point of the cross-wire 3 on the two upper angle beads 1, said welding being carried out after the folding operation.
  • This station F is also provided with squaring shims 30 which position the transverse wire 3 folded in the previous folding and welding station E.
  • the welding station G has at least one electrode 31 for welding the remaining free parts of the cross-wire 3 and a squaring shim 32 which positions said remaining free parts.
  • the metal wires for the streaks 1 and 2 come from a station, not shown, for unwinding coils and for straightening said wires.
  • the straightened wires are held in the form of a loop in a buffer reserve, not shown, supplying the device.
  • the straightened strands 1 and 2 are positioned in the horizontal guide means A, B and C and move in the device sequentially in successive steps, the step corresponding to the distance separating at least two frames 4 from the frame.
  • the transverse wire 3 also comes from a station, not shown, unwinding a coil and straightening the wire.
  • This cross-wire 3 is positioned by the guide tube 22.
  • the length of the cross wire 3 is defined by an electronic selection, then said cross wire is cut by the shears 23 to the desired length corresponding substantially to the perimeter of a frame 4 of the frame.
  • the transverse wire 3 After the transverse wire 3 has been cut to length, it is placed horizontally and symmetrically with the intermediate strands 2, then folded under the action of the mobile tools 26 of station E to form, for example, a horizontal lower side 5 of the frame 4 (Fig. 2).
  • the cross wire 3 is bent in a U-shape, the two wings 6 of the U being substantially vertical being obtained, under the action of the mobile tools 26, by the folding down of the two free parts of the transverse wire 3.
  • the two wings 6 of the U are obtained by the support of the transverse wire 3 on the corresponding lower angle 1 angles, the transverse wire 3 being wound on said streaks 1 during folding and the streaks 1 being themselves resting against the fixed tools 24.
  • the plane formed by the wings 6 of the U defined, with the direction of travel S of the threads 1 and 2, an angle ⁇ less than 90 ° (Fig. 2).
  • This characteristic is essential for the production of a frame 4 of reinforcement to be subsequently positioned perpendicular to the struts 1 and 2.
  • the electrodes subject to said fixed tools 24 perform spot welds between the crosspiece wire 3 and the lower angle threads 1, the welds being carried out after the folding operations.
  • the six strands 1 and 2 as well as the transverse wire 3 folded in a U and welded to the two strands of angle 1 lower, are placed, after shifting by one step, in the second station F for folding and welding.
  • the squaring shims 30 move, by elasticity of the metal, the free parts of the transverse wire 3 to hold them in a position perpendicular to the threads 1 and 2 before the following folding and welding operation.
  • the wings 6 of the U are then folded to form the frame 4 of the frame, the folding being obtained by pressing the cross-wire 3 constituting the wings 6 of the U against the corresponding upper corner ropes.
  • the remaining free parts 7 of the transverse wire 3 are wound on the upper corner angle 1 which form a folding corner, the two upper corner angle 1 each bearing on the corresponding fixed tool 27.
  • the transverse wire 3 is electrically welded to the end angles of the upper angle 1 by the electrodes associated with the stationary tools 27 of the station F.
  • the part of the transverse wire 3 located between two weld points produced successively on the two stations E and F form the lateral sides of the frame 4.
  • the threads 1 and 2 and the cross-wire 3 are moved at least one step in the direction of travel S on the welding station G.
  • the two remaining free parts 7 forming an angle of less than 90 ° with the direction of travel S are supported, during the positioning of the frame 4 in the station G, on the squaring block 32 which places said remaining free parts 7 of the cross-wire 3 perpendicular to the struts 1 and 2.
  • the remaining free parts 7 are electrically welded by the electrode 31 to close the frame 4 of the frame, welding can be carried out either between the remaining free parts 7 of the cross wire 3 and an upper intermediate thread 2, as in 'example of embodiment with six strands, or between the two remaining free parts 7 of the transverse wire 3 in the embodiment for example of a frame with four strands.
  • the lower intermediate thread 2 is welded on the same welding station G as that used for welding the free parts 7 of the cross-wire 3, the welding then being carried out between said lower intermediate strand and the lower side 5 of the frame 4 of the frame by a welding electrode, not shown, for example placed below the welding electrode 31 of station G.
  • the reinforcement element in progress is carried by a gutter 33 (Fig. 1).
  • the folding and / or welding operations are carried out simultaneously on several transverse wires at different successive stations
  • Figs. 3 to 5 represent different reinforcements which can be produced by the device according to the invention.
  • Fig. 3 shows a six-threaded reinforcement comprising four corner threads 1 and two intermediate threads 2, the free parts of the cross member 3 forming the frames 4 being welded together and on one of the intermediate strands 2.
  • Fig. 4 shows an armature with four corner threads 1, the free parts of the transverse wire 3 forming the frames 4 being welded together.
  • FIG. 5 represents a three-threaded frame 1.
  • the process according to the invention provides numerous advantages in the production and in the characteristics of the frame.
  • the reinforcement produced is with rigid closed frames and the folding before welding allows a large surface contact between the crossmember wires and the struts and thereby improves the quality of the weld.
  • the elimination of the pin leads, on the one hand, to a saving of material in the transverse thread and, on the other hand, greater safety in handling, the protruding pins can cause injuries during the handling.
  • the method and the device according to the invention make it possible to obtain a frame with rigid closed frames having an improved structural quality and allowing ease of handling, both of the frame per unit and in bundle packaging. and loading onto means of transport.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
EP90403772A 1989-12-29 1990-12-26 Verfahren und automatische Vorrichtung zur Herstellung einer Stahlbewehrung und mit diesem Verfahren hergestellte Stahlbewehrung Withdrawn EP0435769A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8917492A FR2656561A1 (fr) 1989-12-29 1989-12-29 Procede et dispositif automatique de realisation d'une armature metallique et armature metallique realisee selon ce procede.
FR8917492 1989-12-29

Publications (1)

Publication Number Publication Date
EP0435769A1 true EP0435769A1 (de) 1991-07-03

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EP90403772A Withdrawn EP0435769A1 (de) 1989-12-29 1990-12-26 Verfahren und automatische Vorrichtung zur Herstellung einer Stahlbewehrung und mit diesem Verfahren hergestellte Stahlbewehrung

Country Status (2)

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EP (1) EP0435769A1 (de)
FR (1) FR2656561A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036127A1 (en) * 1999-11-16 2001-05-25 M.E.P. Macchine Elettroniche Piegatrici S.P.A. Device to produce reinforcement cages and relative method
WO2002057045A1 (en) * 2001-01-19 2002-07-25 M.E.P. Macchine Elettroniche Piegatrici Spa Welding assembly for cage-forming machine and connected welding method
NL1030978C2 (nl) * 2006-01-23 2007-07-24 Gerardus Alexander Verschuren Inrichting en werkwijze voor het vervaardigen van wapeningselementen.
ES2282022A1 (es) * 2005-07-28 2007-10-01 Ferroberica, S.L. Sistema de fabricacion de estructuras tridimensionales huecas para construccion.
ES2299299A1 (es) * 2005-07-28 2008-05-16 Ferroberica, S.L. Sistema de construccion de cajones de hormigon para obras de abrigo y atraque destinadas a puertos similares.
EP1981664A1 (de) * 2006-02-02 2008-10-22 Titanfer S.R.L. Verfahren und vorrichtung zur erzeugung von metallrahmen für stahlbeton
AT508093B1 (de) * 2009-03-31 2011-12-15 Evg Entwicklung Verwert Ges Verfahren und anlage zur kontinuierlichen herstellung von bewehrungskörben
CN113478233A (zh) * 2021-07-02 2021-10-08 江苏京生管业有限公司 一种桥架生产制造设备
CN115070440A (zh) * 2022-07-19 2022-09-20 建科机械（天津）股份有限公司 一种仰拱钢筋骨架生产线
CN117718418A (zh) * 2024-02-18 2024-03-19 中铁四局集团有限公司 一种管片钢筋笼自动化成形加工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107900693B (zh) * 2017-12-25 2023-11-24 苏州格洛佛精密科技有限公司 动铁喇叭传导杆焊接装置
CN111571217B (zh) * 2020-06-13 2022-11-22 东莞晋峰科技有限公司 一种制冷设备散热器托架的装配装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2155083A5 (de) * 1971-10-06 1973-05-18 Mancelles Armatures
FR2269387A1 (en) * 1974-04-30 1975-11-28 Herlin Bernard Machine for mfg concrete reinforcement cages - uses bars bent about longitudinal bars and welded
FR2269386A1 (en) * 1974-04-30 1975-11-28 Herlin Bernard Bending unit for concrete reinforcement cross members - has clamp pad, former and bending arm with contact roller
SU872118A1 (ru) * 1980-02-21 1981-10-15 Комбинат "Братскжелезобетон" Братскгэсстроя Установка дл изготовлени арматурных каркасов
EP0097569A1 (de) * 1982-06-23 1984-01-04 Profer Anlage zur Herstellung von Bewehrungsgerippen für Stahlbeton

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2155083A5 (de) * 1971-10-06 1973-05-18 Mancelles Armatures
FR2269387A1 (en) * 1974-04-30 1975-11-28 Herlin Bernard Machine for mfg concrete reinforcement cages - uses bars bent about longitudinal bars and welded
FR2269386A1 (en) * 1974-04-30 1975-11-28 Herlin Bernard Bending unit for concrete reinforcement cross members - has clamp pad, former and bending arm with contact roller
SU872118A1 (ru) * 1980-02-21 1981-10-15 Комбинат "Братскжелезобетон" Братскгэсстроя Установка дл изготовлени арматурных каркасов
EP0097569A1 (de) * 1982-06-23 1984-01-04 Profer Anlage zur Herstellung von Bewehrungsgerippen für Stahlbeton

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001036127A1 (en) * 1999-11-16 2001-05-25 M.E.P. Macchine Elettroniche Piegatrici S.P.A. Device to produce reinforcement cages and relative method
US6460235B1 (en) 1999-11-16 2002-10-08 M.E.P. Macchine Elettroniche Piegatrici Spa Device to produce reinforcement metal cages
WO2002057045A1 (en) * 2001-01-19 2002-07-25 M.E.P. Macchine Elettroniche Piegatrici Spa Welding assembly for cage-forming machine and connected welding method
ES2282022A1 (es) * 2005-07-28 2007-10-01 Ferroberica, S.L. Sistema de fabricacion de estructuras tridimensionales huecas para construccion.
ES2299299A1 (es) * 2005-07-28 2008-05-16 Ferroberica, S.L. Sistema de construccion de cajones de hormigon para obras de abrigo y atraque destinadas a puertos similares.
NL1030978C2 (nl) * 2006-01-23 2007-07-24 Gerardus Alexander Verschuren Inrichting en werkwijze voor het vervaardigen van wapeningselementen.
EP1981664A1 (de) * 2006-02-02 2008-10-22 Titanfer S.R.L. Verfahren und vorrichtung zur erzeugung von metallrahmen für stahlbeton
AT508093B1 (de) * 2009-03-31 2011-12-15 Evg Entwicklung Verwert Ges Verfahren und anlage zur kontinuierlichen herstellung von bewehrungskörben
CN113478233A (zh) * 2021-07-02 2021-10-08 江苏京生管业有限公司 一种桥架生产制造设备
CN115070440A (zh) * 2022-07-19 2022-09-20 建科机械（天津）股份有限公司 一种仰拱钢筋骨架生产线
CN115070440B (zh) * 2022-07-19 2023-10-27 建科机械（天津）股份有限公司 一种仰拱钢筋骨架生产线
CN117718418A (zh) * 2024-02-18 2024-03-19 中铁四局集团有限公司 一种管片钢筋笼自动化成形加工方法
CN117718418B (zh) * 2024-02-18 2024-05-03 中铁四局集团有限公司 一种管片钢筋笼自动化成形加工方法

Also Published As

Publication number Publication date
FR2656561B1 (de) 1994-12-23
FR2656561A1 (fr) 1991-07-05

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