EP2529857B1 - Procédé et dispositif destinés à la fabrication de treillis soudés cintrés - Google Patents

Procédé et dispositif destinés à la fabrication de treillis soudés cintrés Download PDF

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Publication number
EP2529857B1
EP2529857B1 EP12003716.3A EP12003716A EP2529857B1 EP 2529857 B1 EP2529857 B1 EP 2529857B1 EP 12003716 A EP12003716 A EP 12003716A EP 2529857 B1 EP2529857 B1 EP 2529857B1
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EP
European Patent Office
Prior art keywords
bars
longitudinal
transverse
welding
structural steel
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
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EP12003716.3A
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German (de)
English (en)
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EP2529857A1 (fr
Inventor
Karl Friedrich Enders
Erich Nussbaumer
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Progress Maschinen and Automation AG
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Progress Maschinen and Automation AG
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Publication of EP2529857A1 publication Critical patent/EP2529857A1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod
    • 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
    • B21F27/08—Making wire network, i.e. wire nets with additional connecting elements or material at crossings
    • B21F27/10—Making wire network, i.e. wire nets with additional connecting elements or material at crossings with soldered or welded crossings
    • 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
    • B21F27/127—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 bending preformed mesh
    • 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

Definitions

  • the invention relates to a method for the production of an arcuate structural steel mat, which is formed in the plane defined by the Baustahimatke at least in one area arcuate, from a plurality of rods by welding the rods to a structure consisting of longitudinal bars and transverse bars structure, starting at a front End by welding a first transverse bar with the longitudinal bars, generating a feed for positioning the longitudinal bars for all other transverse bar welds until reaching a desired rear end, to achieve the arch shape of the steel mesh a from the sheet interior to the sheet outer towards increasing feed distance is generated, and wherein the Feed by train on at least one welded cross bar and / or longitudinal bar preferably in the region of the front end, and wherein the feed takes place by train via a pulling device which is driven in the longitudinal and transverse directions becomes.
  • the invention relates to a device for producing an arcuate structural steel mat, which is arcuate in the plane defined by the construction steel mat at least in one area, and consist of longitudinal bars and transverse bars welded together, the device feeding devices for the longitudinal bars, feeding devices for the Cross bars and a welding device for welding the longitudinal bars with the transverse bars, and wherein the device further comprises a pulling device for generating a bow from the inside of the arcuate reinforcing steel mat to the arc out towards increasing feed distance, and wherein the traction device is driven by a drive device in the longitudinal direction and in the transverse direction.
  • Reinforced steel mats serve to reinforce (reinforce) concrete components. They are manufactured industrially on semi-automatic or fully automatic machines and consist of intersecting, typically corrugated steel bars, which extend in the longitudinal and transverse direction and are joined together at the intersection points by welding.
  • An arcuate structural steel mat is a structural steel mat which is in its plane, ie in the plane defined by the reinforcing steel mat, is formed arcuately at least in one area. This is achieved in that the distance between the welding points of two adjacent transverse bars is smaller with the longitudinal bars located inside the sheet, as the distance between the welding points of two adjacent transverse bars with the longitudinal bars lying in the sheet outer.
  • Such arcuate structural steel meshes are used to reinforce round, half-round or conical concrete components, e.g. used to reinforce supports for wind turbines, elements for tunneling, pipes or lighthouses.
  • the object of the present invention is to avoid the disadvantages described above and to provide a method which is improved and simplified compared with the prior art or an apparatus improved and simplified compared with the prior art for the production of curved structural steel mats.
  • a basic idea of the invention therefore consists in that the advancement of the longitudinal bars for the respective welding cycle takes place by pulling on at least one welded transverse bar and / or longitudinal bar, preferably in the area of the front end of the curved structural steel mat.
  • the desired for each longitudinal bar feed path is automatically achieved, since all the longitudinal bars are connected to this at least one transverse bar and / or longitudinal bar.
  • Relative positioning errors between adjacent longitudinal bars and / or summation errors of positioning errors are excluded so that the arcuate structural steel mesh can be made with higher accuracy.
  • the settings for the production of a new mat type can be made faster.
  • the traction device comprises a cross slide which is arranged on a longitudinal slide, wherein both the cross slide and the longitudinal slide are driven by a drive device.
  • the traction device which is driven in the longitudinal and transverse directions, rotated in the plane of the structural steel mat.
  • the pulling device comprises a rotary bar which is rotatable via a rotary drive device in the plane of the structural steel mat.
  • the at least one transverse bar and / or longitudinal bar on which or at which the train takes place can be released, for example detachably.
  • the gripping device can be designed quite differently, e.g. with grippers, with clamping elements or - if they are magnetic steel bars - with electromagnets.
  • the pulling device can be controlled via a control device.
  • a control device may be technically e.g. be realized with the help of a computer.
  • a method step is integrated, in which the sections of the longitudinal bars between a first and a second, subsequent crossbar welding after the first crossbar welding and the subsequent feed to prepare the second crossbar welding into a sheet be deformed. This method step is explained in more detail below in the description of the figures.
  • the method can be supplemented by the fact that the longitudinal and transverse bars are first unwound before the welding, for example, by means of a take-off of coils and then in a straightening or cutting machine to straightened straight bars or cut to a predetermined length.
  • the longitudinal and transverse rods are unwound in each case in the longitudinal direction and the transverse rods are rotated after cutting in the transverse direction.
  • the process can also be extended to serve the production of three-dimensional truncated cone-shaped reinforcements for concrete components. Namely, this is possible by first producing an arcuate structural steel mat in the manner described and then bending it up three-dimensionally.
  • This process step can be implemented particularly easily by means of the above-described traction device by first moving the traction device in a certain direction for producing the structural steel mat and subsequently reversing the direction of movement of the traction device to form the reinforcement, thereby bending the structural steel mat three-dimensionally.
  • the bending can be realized technically, for example, by means of a bending device, which is preferably designed to be extendable and / or wedge-shaped.
  • the present invention also relates to a device for producing an arcuate structural steel mat which is arc-shaped in the plane defined by the structural steel mat, at least in one region.
  • a device for producing an arcuate structural steel mat which is arc-shaped in the plane defined by the structural steel mat, at least in one region.
  • One of the characteristic features of this device is that in addition to feeders for the longitudinal bars, feeders for the cross bars and a welding device for welding the longitudinal bars with the crossbars also a traction device for generating a bow from the inside arcuate Baustahlmatte to the bow outer towards increasing feed distance comprises.
  • the device also has guide devices for the longitudinal bars on one side or both sides of the welding device.
  • the guide devices which are arranged on the side of the welding device, which faces the feeders for the longitudinal bars (i.e., in front of the welding line), serve to ensure that all the longitudinal bars have a certain distance from each other.
  • these guide devices can be guide rollers or guide plates.
  • they can be tuned to a given Leksstabraster and / or (for the same purpose) exchange.
  • the guide devices which are arranged on the side of the welding device, which faces the pulling device (ie behind the welding line)
  • the method step mentioned above which consists of the sections of the longitudinal bars between each a first and a second, subsequent log welding after the first transverse bar weld and the subsequent feed to prepare the second cross bar weld to form an arc perform.
  • these guide devices can be pivoted in and / or are adjustable in the transverse direction via an actuator.
  • an advantageous procedure is that the longitudinal and transverse bars are first unwound from coils before the welding, for example by means of an unwinding device, and then in a straightening or straightening direction.
  • Cutting machine to straight bars deformed and cut to a predetermined length.
  • the device advantageously has movable transport devices. These transport devices can be movably mounted on rails, for example.
  • the method for the production of substantially arcuate structural steel mats can also be extended to be suitable for the production of three-dimensional truncated cone-shaped reinforcements.
  • a procedure in which the reinforcing steel mat is first produced in the horizontal plane and then pivoted so that the axis of symmetry of the reinforcement at the end of the manufacturing process is substantially in the vertical direction was found to be particularly advantageous.
  • the feasibility of this procedure can for example be given by the fact that the area of the device comprising the welding device and the pulling device, is pivotally mounted.
  • Fig. 1 is a top view of a preferred embodiment of the device for producing arcuate structural steel mats 1 shown schematically.
  • the longitudinal bars 2 are fed via a feed table 8 of the welding device 9 and welded to the transverse bars 3 to form an arcuate construction steel mat 1.
  • the welding device 9 comprises a welding bridge with a plurality of, preferably with 12 ⁇ 3, movable multi-heads (not shown in the drawing).
  • Right and left of the welding device 9 guide devices 10 and 11 are arranged for the longitudinal bars 2.
  • the guide devices 10, which are located in front of the welding line, are guide rollers which serve to ensure that all the longitudinal bars are at a specific distance from one another. In the illustrated embodiment, the guide rollers are tuned to a predetermined L jossstabraster.
  • the longitudinal direction L and the transverse direction Q are marked in the drawing by means of two arrows. It should be noted that the contours of the components in the area of the welding device 9 are shown projected onto a plane for better illustration, but are only partially visible in reality in plan view.
  • a plurality of longitudinal bars 2 are fed to the welding device 9.
  • a first transverse bar 3 ' is welded to the longitudinal bars 2.
  • this first welded transverse bar 3 ' is releasably secured to the pulling device 6 by means of the gripping devices 7, so that the longitudinal bars 2 can be collectively positioned stepwise by means of the pulling device 6 for all subsequent cross bar weldings.
  • the longitudinal slide 22 moves to the right, the cross slide 23 down and the rotary bar 24 is rotated clockwise. In this way, a feed path increasing from the inside of the sheet to the outside of the sheet is generated.
  • the sections of the longitudinal bars 2 between a first and a second, subsequent cross-bar welding after the first transverse bar welding and the subsequent feed to prepare the second transverse bar welding are deformed into an arc.
  • FIGS. 2a and 2b explained in more detail below, wherein in these figures, only a small section of the sheet mat in the region of the weld line is shown.
  • the longitudinal bars 2 are fed via the guide rollers 10 of the welding device 9 (which can not be seen in these figures) until they have reached the position Pos. 1. At this point, the longitudinal bars 2 are welded to a first transverse bar 3 at the points 27. Subsequently, the longitudinal bars 2 (by train) a piece in the direction of in the Fig. 2a to be seen arrow continues to move until the first cross bar 3 is in position Pos. 2.
  • a second step in the Fig. 2b is indicated schematically, the guide device 11 is pivoted after the feed to the reinforcing steel mat. There it hooks behind an outer longitudinal rod portion and is then moved over an actuator a piece in the direction of the arrow, that is substantially perpendicular to the longitudinal bar sections 28.
  • this outer longitudinal bar portion and thus at the same time all other longitudinal bar sections pulled so far outward until the longitudinal bars 2 have reached the transverse bar position Pos. 1 desired for the subsequent transverse bar welding desired positions in the transverse direction.
  • the welding of a next transverse bar 3 takes place (cf. Fig. 2c ).
  • FIG. 3 is an overall view of the in Fig. 1 shown preferred embodiment of the device for producing curved reinforcing steel mats 1 to see. It should be noted in advance that, as with the other figures, it is a schematic representation, ie that technical details that are not important to the basic understanding have been omitted.
  • Right above eight coils 20 are indicated, which are located in a unwinding device 12. On these coils 20, the rods are wound, from which the reinforcing steel mat 1 is welded together, that is, that these rods are first unwound and fed to a straightening or cutting machine 13. Here they are first deformed into straight bars, cut to a predetermined length and finally placed on a bar outlet beam 14.
  • the part of the rods which is provided as longitudinal bars, is subsequently moved in the direction of the arrow by means of a transport device 15 movable over rails 16, transferred to a transfer device 17 and subsequently fed to the welding device 9 to the right by means of this transfer device 17.
  • the part of the cut rods provided as crossbars is likewise fed to the welding device 9 in a corresponding manner by means of a transport device 18 which moves along two rails 19.
  • these cross bars so that they show Q in the transverse direction, must be rotated by 90 ° during this transport process. Therefore, the rails 19 have a 90 ° curve on.
  • the transport device 18 for the transverse rods is guided below the feed table 8 for the longitudinal bars to the welding device 9.
  • the end positions of the transport devices 15 and 18 and the transfer device 17 are shown in dashed lines. It should also be noted that the transfer device 17 is movably mounted between two guide rails 29.
  • Fig. 4a, 4b and 4c show three different embodiments of arcuate structural steel mats 1, which can be produced by the method or by means of the device.
  • mats with different radii of curvature, mats that are curved in only one area or mats can be made in different widths and lengths.
  • mild steel mats 1 can be produced with different crossbar or longitudinal bar spacing.
  • the distance between the transverse rods 3 can be varied via a feed of different strengths, whereas the distance between the longitudinal rods 2 can be varied by an adjustment or an exchange of the guide rollers 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Claims (19)

  1. Procédé destiné à la fabrication d'un treillis en acier de construction qui est formé de façon cintrée au moins dans une zone dans le plan défini par le treillis en acier de construction (1), à partir d'une multiplicité de barres par soudage des barres pour donner une structure composée de barres longitudinales (2) et de barres transversales (3), en commençant à une extrémité avant (4) par le soudage d'une première barre transversale (3') avec les barres longitudinales (2), la production d'une avance pour le positionnement des barres longitudinales (2) pour tous les autres soudages de barres transversales jusqu'à atteindre une extrémité arrière (5) souhaitée, un parcours d'avance augmentant depuis l'intérieur de l'arc jusqu'à, l'extérieur de l'arc étant produit pour obtenir la forme cintrée du treillis en acier de construction (1), et l'avance s'effectuant par une traction sur au moins une barre transversale (3') et/ou une barre longitudinale (2') soudée, de préférence dans la zone de l'extrémité avant (4), et l'avance s'effectuant par une traction par le biais d'un dispositif de traction (6) qui est entraîné dans la direction longitudinale (L) et la direction transversale (Q), caractérisé en ce que le dispositif de traction (6) comprend un chariot transversal (23) qui est disposé sur un chariot longitudinal (22), le chariot transversal (23) ainsi que le chariot longitudinal (22) étant entraînés par le biais d'un dispositif d'entraînement.
  2. Procédé selon la revendication 1, caractérisé en ce que l'avance s'effectue par une traction sur la première barre transversale (3') soudée.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'avance s'effectue par une traction par le biais d'un dispositif de traction (6) qui est tourné dans le plan du treillis en acier de construction (1).
  4. Procédé selon une des revendications 1 à 3, caractérisé en ce que la barre transversale (3') et/ou la barre longitudinale (2') au moins au nombre de un sur laquelle s'effectue la traction est fixée de façon détachable sur le dispositif de traction (6).
  5. Procédé selon une des revendications 1 à 4, caractérisé en ce que, entre respectivement un premier soudage de barres transversales et un deuxième soudage de barres transversales qui suit, les tronçons (28) des barres longitudinales (2) sont, après le premier soudage de bord transversal et l'avance qui suit, formés en un arc pour la préparation du deuxième soudage de barres transversales.
  6. Procédé selon une des revendications 1 à 5, caractérisé en ce que les barres longitudinales (2) et les barres transversales (3) sont, avant le soudage, d'abord déroulées à partir de bobines (20), puis formées en barres rectilignes et enfin découpées à une longueur prédéfinie, les barres longitudinales (2) et les barres transversales (3) étant de préférence déroulées respectivement dans la direction longitudinale (L), et les barres transversales (3) étant, après la découpe, tournées dans la direction transversale (Q).
  7. Procédé destiné à la fabrication d'une armature (21) tridimensionnelle en forme d'enveloppe tronconique pour des éléments de construction en béton, caractérisé en ce que l'armature (21) est formée par la torsion d'un treillis en acier de construction (1) essentiellement cintré, le treillis en acier de construction (1) étant fabriqué selon un procédé selon une des revendications 1 à 6.
  8. Procédé selon la revendication 7, caractérisé en ce que le dispositif de traction (6) pour la fabrication du treillis en acier de construction (1) est d'abord déplacé dans une direction et puis dans une direction opposée pour la formation de l'armature (21), et en l'occurrence le treillis en acier de construction (1) est courbé dans les trois dimensions, le treillis en acier de construction (1) étant de préférence fabriqué d'abord dans un plan horizontal et puis pivoté de telle sorte que l'axe de symétrie (S) de l'armature (21) est, à la fin du procédé de fabrication, dirigé essentiellement dans la direction verticale.
  9. Dispositif destiné à la fabrication d'un treillis en acier de construction (1) qui est formé de façon cintrée au moins dans une zone dans le plan défini par le treillis en acier de construction (1), et qui se compose de barres longitudinales (2) et de barres transversales (3) assemblées par soudage, le dispositif comprenant des dispositifs d'amenée (8, 15, 16, 17) pour les barres longitudinales (2), des dispositifs d'amenée (18, 19) pour les barres transversales (3) et un dispositif de soudage (9) pour le soudage des barres longitudinales (2) avec les barres transversales (3), et le dispositif comprenant également un dispositif de traction (6) pour la production d'un trajet d'avance qui augmente à partir de l'intérieur de l'arc du treillis soudé (1) cintré vers l'extérieur de l'arc, et le dispositif de traction (6) pouvant être entraîné par le biais d'un dispositif d'entraînement dans la direction longitudinale (L) et dans la direction transversale (Q), caractérisé en ce que le dispositif de traction (6) comprend un chariot transversal (23) qui est disposé sur un chariot longitudinal (22), le chariot transversal (23) ainsi que le chariot longitudinal (22) pouvant être entraînés par le biais d'un dispositif d'entraînement.
  10. Dispositif selon la revendication 9, caractérisé en ce que le dispositif de traction (6) peut être commandé par le biais d'un dispositif de commande.
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que le dispositif de traction (6) peut, par le biais d'un dispositif d'entraînement rotatif, être amené à tourner dans le plan du treillis en acier de construction (1), le dispositif de traction (6) comprenant de préférence une poutre rotative (24) qui peut être amenée à tourner dans le plan du treillis en acier de construction (1) par le biais d'un dispositif d'entraînement rotatif.
  12. Dispositif selon une des revendications 9 à 11, caractérisé en ce que le dispositif de traction (6) comprend au moins un dispositif de préhension (7).
  13. Dispositif selon une des revendications 9 à 12, caractérisé en ce que, sur un côté ou sur les deux côtés du dispositif de soudage (9), il est disposé des dispositifs de guidage (10, 11) pour les barres longitudinales (2), s'agissant de préférence de galets de guidage dans le cas des dispositifs de guidage (10) qui sont disposés sur le côté du dispositif de soudage (9) qui est tourné vers les dispositifs d'amenée (8, 15, 16, 17) pour les barres longitudinales (2).
  14. Dispositif selon la revendication 13, caractérisé en ce que les dispositifs de guidage (10) qui sont disposés sur le côté du dispositif de soudage (9) qui est tourné vers les dispositifs d'amenée (8, 15, 16, 17) pour les barres longitudinales (2) peuvent être harmonisés avec un réseau prédéfini de barres longitudinales et/ou peuvent être remplacés.
  15. Dispositif selon la revendication 13 ou 14, caractérisé en ce que les dispositifs de guidage (11) qui sont disposés sur le côté du dispositif de soudage (9) qui est tourné vers le dispositif de traction (6) sont réalisés de façon pivotante et/ou peuvent être déplacés dans la direction transversale (Q) par le biais d'un servomoteur.
  16. Dispositif selon une des revendications 9 à 15, caractérisé en ce que le dispositif comprend un dispositif dérouleur (12) pour les bobines sur lesquelles sont enroulées les barres longitudinales (2) et les barres transversales (3), et/ou comprend une machine à redresser ou respectivement une machine à couper (13).
  17. Dispositif selon une des revendications 9 à 16, caractérisé en ce que les dispositifs d'amenée (8, 15, 16, 17) pour les barres longitudinales (2) et/ou les dispositifs d'amenée (18, 19) pour les barres transversales (3) comprennent des dispositifs de transport (15, 18) mobiles, de préférence sur des rails (18, 19).
  18. Dispositif selon une des revendications 9 à 17, caractérisé en ce que, dans la zone des dispositifs d'amenée (8, 15, 16, 17) pour les barres longitudinales (2), il est disposé un dispositif de pliage, le dispositif de pliage étant de préférence réalisé de façon à pouvoir être déployé et/ou réalisé en forme de coin.
  19. Dispositif selon une des revendications 9 à 18, caractérisé en ce que la zone (26) du dispositif comprenant le dispositif de soudage (9) et le dispositif de traction (6) est supportée de façon pivotante.
EP12003716.3A 2011-06-01 2012-05-10 Procédé et dispositif destinés à la fabrication de treillis soudés cintrés Active EP2529857B1 (fr)

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Application Number Priority Date Filing Date Title
ATA807/2011A AT511529B1 (de) 2011-06-01 2011-06-01 Verfahren und einrichtung zur herstellung von bogenförmigen baustahlmatten

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EP2529857B1 true EP2529857B1 (fr) 2014-01-08

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DE102013018907B4 (de) * 2013-11-13 2016-05-19 Mbk Maschinenbau Gmbh Vorrichtung und Verfahren zur Herstellung von Bewehrungsmatten sowie Bewehrungsmatte
AT523802B1 (de) 2020-04-15 2022-07-15 Progress Maschinen & Automation Ag Mattenschweißanlage zur Herstellung von Betonstahlmatten
KR102612288B1 (ko) * 2022-06-28 2023-12-11 현대케미칼 주식회사 매트 가공장치

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DE3324678A1 (de) * 1983-07-08 1985-01-17 Hans 4130 Moers Lechtenböhmer Verfahren und vorrichtung zur herstellung von rohrfoermigen gebilden aus gittermaterial
IT1396085B1 (it) * 2009-05-27 2012-11-09 A W M Spa Apparato automatizzato di avanzamento differenziale di tondini e/o barre metalliche per la costruzione di elementi elettrosaldati rettilinei e/o curvilinei, e relativo procedimento di produzione.

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AT511529B1 (de) 2013-02-15
AT511529A1 (de) 2012-12-15

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