EP0053601B1 - Vorrichtung zum zickzackförmigen Biegen gerader Drähte, insbesondere für Maschinen zum Herstellen von Diagonalgittern - Google Patents

Vorrichtung zum zickzackförmigen Biegen gerader Drähte, insbesondere für Maschinen zum Herstellen von Diagonalgittern Download PDF

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Publication number
EP0053601B1
EP0053601B1 EP81890172A EP81890172A EP0053601B1 EP 0053601 B1 EP0053601 B1 EP 0053601B1 EP 81890172 A EP81890172 A EP 81890172A EP 81890172 A EP81890172 A EP 81890172A EP 0053601 B1 EP0053601 B1 EP 0053601B1
Authority
EP
European Patent Office
Prior art keywords
bars
wires
wire
zig
bending
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.)
Expired
Application number
EP81890172A
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German (de)
English (en)
French (fr)
Other versions
EP0053601A1 (de
Inventor
Hans Dipl.-Ing. Gött
Josef Dipl.-Ing. Dr. Ritter
Klaus Dipl.-Ing. Ritter
Gerhard Dipl.-Ing. Dr. Ritter
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.)
Filing date
Publication date
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0053601A1 publication Critical patent/EP0053601A1/de
Application granted granted Critical
Publication of EP0053601B1 publication Critical patent/EP0053601B1/de
Expired legal-status Critical Current

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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
    • 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
    • B21F27/08—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

Definitions

  • the invention relates to a device for zigzag-shaped bending parallel to one another in a plane of straight wires with the aid of rails which can be displaced transversely to the wire coulter and which carry wire deflecting pins at the appropriate intervals and are moved alternately in opposite directions transversely to this direction during a working movement in the wire feed direction by means of a control device .
  • Devices of this type are required in particular for machines for producing so-called diagonal grids, in which two groups of alternately oppositely zigzag-shaped wires are produced and two adjacent ones of these wires are connected to each other on the facing and possibly even slightly overlapping wave crests.
  • the rails carrying the deflection pins are arranged at equal angular intervals on the circumference of a roller and can be displaced parallel to the roller axis.
  • control cam tracks arranged on the side of the roller and engaging on the rail ends, several rails are alternately shifted in opposite directions in such a way that the wires are gripped at intervals from opposite sides, placed under tensile stress, and are increasingly bent around the pins in a zigzag fashion while sliding on the pins.
  • the invention is therefore concerned with the task of eliminating the disadvantages described in a bending device of the type specified in the introduction by preventing the wires from sliding on the deflection pins during the bending processes and therefore bending the wires around the deflection pins without any walk.
  • each of the rails carrying the deflection pins is articulated at the ends of at least two equally long, parallel and pivotably mounted support arms, the pivot axes of which are perpendicular to the bending plane and at least approximately in alignment with the centers of nestling circles of that evolution are arranged, which are described by deflecting pins of successive rails tangent wire sections of a given length, and that by means of the control device only one rail for each bending operation, namely by the full amplitude of the desired zigzag shape and with simultaneous pivoting of its support arms.
  • a relative rolling movement of the deflection pin on the wire occurs that does not contain any sliding component, so that flexing of the wires at the bending points is avoided.
  • AT-B-317 646 describes a device for bending strut snakes which are in particular intended as infill of lattice girders, in which a walk-free bending process is to be achieved in that the pivot point of the girder of the active bending tool is on the center perpendicular of the connecting straight line of the center points of the active bending tool at the beginning and at the end of the bending process.
  • a rolling movement on the rod to be bent must be superimposed on the working movement of the respectively active bending tool, so that it rotates during the bending process by an angle that is the same as the bending angle.
  • the present invention enables a walk-free bending of all wires of an arbitrarily large wire coulter around deflection pins which are fixed with respect to their mounting rail, as a result of which the bending device, in particular if the number of wires in the wire coulter, for example for the production of wide diagonal gratings, is very large , can be made much simpler and more reliable.
  • the pivot axes of the support arms of the rails run radially to the roller according to the invention and are offset from one another in the axial direction from rail to rail by half the division of the row of deflection pins.
  • the pivot axes of the support arms of at least two rails are mounted in a component that can be moved back and forth in the wire feed direction, and the deflection pins of the rails can be removed from the bending plane at the end of a bending process, e.g. by pivoting or lifting the component supporting the rails in order to enable the rail-like component to move backwards after each bending operation.
  • a lower crossbeam 2 is arranged in a machine frame 1, along which dressage devices 3 are provided for the wires of a wire coulter 4.
  • the dressage devices 6 for the wires of a second wire coulter 7 are arranged on a second, upper crossbar 5.
  • the two wire coulters 4 and 7 are drawn off from discharge drums (not shown) via deflecting rollers 8, 9, guided from below or above into a common vertical plane and, from there, after being deformed by means of shaping rollers 15, 16, are fed to a lattice production machine.
  • the deflecting rollers 8, 9 have been omitted so as not to disturb the overview.
  • two stands 13, 14 are arranged, in which the two form rollers 15, 16 are rotatably mounted.
  • the drive for the forming rolls and all other elements of the machine is carried out by a motor 17 via gearwheels 18 only indicated.
  • each wire is deflected on the shaping rolls 15 and 16 assigned to them, each wire, as can be seen in FIG. 2 and will be explained in more detail later, is bent in a zigzag shape along the circumference of the roll.
  • the two zigzag-shaped wire coils created in this way one of which runs along the circumference of the shaping roller 16 and the other along the circumference of the shaping roller 15, lie opposite one another at the end of their deflection path on the two shaping rollers in such a way that they face each other Spread over the crest of the shaft by a small amount.
  • the family of wire coils formed by the upper form roller 16 and the family of wire coils formed by the lower form roller 15 and drawn off tangentially by the form rollers are guided into a common plane and between connecting tools of a lattice production machine, by means of which the mutually facing, somewhat overlapping Vertices of adjacent wire coils of the two shares are connected to one another, so that a grid with essentially rhombic meshes is formed.
  • the roller electrodes 21, 22 are arranged at intervals and parallel to one another along shafts 23, 24 which are mounted in side disks 25, 26.
  • the disks 25 are rigidly attached to a beam 27 extending across the machine width.
  • the disks 26 are essentially triangular in shape and are each connected at one of their corner points via a joint 28 to a support 29 which in turn is fastened to a beam 30 which extends across the machine width.
  • One of the bars 27 or 30 can also be designed to be adjustable in height by means not shown because generally known means, in order to be able to adapt the distance between the roller electrodes 21, 22 to different wire diameters.
  • each disk 26 is connected by a joint 31 to an adjustable compression spring 32, with the aid of which the contact pressure of the roller electrodes 22 on the wire crossing points can be adjusted as required.
  • the roller electrodes 22 are alternately connected to the two poles of the secondary side of welding transformers 34 by means of flexible supply lines 33.
  • adjacent upper roller electrodes 22 are electrically insulated from one another, whereas the lower roller electrodes 21 are conductively connected to one another and thus form a passive current bridge.
  • Gripping hooks 41, 42 which are attached to beams 43, 44 running across the width of the machine, carry out the lattice transport.
  • the beams 43, 44 engage trunnions which are arranged at one end of one-armed levers 45, 46; the other ends of these one-armed levers are rotatably connected to shafts 47, 48.
  • the camshafts 47, 48 are set in reciprocating pivoting movements via cam drives, not shown, in such a way that the end of the one-armed lever 45 carrying the bar 43 moves away from the roller electrodes 21, 22, while the one carrying the bar 44 moves End of the one-armed lever 46 moved to the roller electrodes 21, 22, and vice versa.
  • the bars 43, 44 are pivoted about their longitudinal axes via two single-arm levers 49, 51 and a bumper 53, or via two single-arm levers 50, 52 and a bumper 54, the bars moving away from the roller electrodes 21, 22 in each case - in the working phase assumed above, the beam 43 is pivoted such that its gripping hooks 41 engage the mesh meshes, while at the same time the gripping hooks 42 of the other beam 44 are pivoted out of engagement with the mesh, and vice versa.
  • the one-armed levers 51, 52 are arranged in a rotationally fixed manner on shafts 55, 56, which are set into reciprocating pivoting movements via cam drives.
  • the drive of the actual deformation tools is removed from an eccentric 71 and transmitted from a connecting rod 72 to one arm of an angle lever 73, on the other arm of which a bumper 74 is articulated. 2 is articulated to one arm of two further angle levers 75, 76, on the other arms of which the end of another bumper 77, 78 is articulated.
  • the ends of the bumpers 77, 78 opposite the angle levers 75, 76 are articulated to the stand 13 with rockers 79, 80.
  • the bumpers 77, 78 have components 81 which act as stops and which partially engage in a cam track 82 in the working position.
  • a cam track 82 is located at both ends of each of the two molding rolls 15, 16, and the ends of rails 83 arranged along the circumference of the molding rolls 15, 16 come alternately, the one track with the cam track on the right side of the machine and the the next rail engages with the cam track on the left side of the machine, by means of guide rollers.
  • the assigned angle lever for example the angle lever 75 in FIG. 4, executes a pivoting movement through which the bumper 77 is moved together with its stop 81 in the direction and by the amount of the desired parallel displacement of the rail 83 corresponding to the deformation of the wire.
  • the stop 81 of the bumper 77 grasps the guide roller of the rail and brings it into its new position on the raised part of the cam track 82.
  • One of the prerequisites for forcing the wires to deform without sliding along the spaced diverter pins 86 of one of the rails 83 is that only a single one of the rails 83 is always displaced parallel to itself during a given time interval the other rails are at rest.
  • the parallel displacements of the individual rails must therefore take place successively and in each case by an amount which is equal to the amplitude of the desired zigzag shape of the wires, and moreover must take place during a period during which the shaping rollers 15, 16 pass through an angle which is equal to that fraction is a full circle, which results from dividing the full circle by the number of rails 83 arranged along the circumference of a shaping roller.
  • the deformation region 82a of the cam track which also depends on the desired mesh shape, with the track sections lying in front of and behind it in the direction of rotation of the forming rolls, encloses such a steep angle that this area of the cam track is inclined from the guide rollers of the rails 83 could not be run due to self-locking without the participation of the movable stops 81.
  • This can be seen particularly clearly from the development of the cam track 82 shown in FIG. 6.
  • a distance X can also be seen in FIG. 6 by which the stop 81 is moved beyond the required amplitude in order to take account of springback of the bent wire after relief by the deflection pins 86.
  • the arms of the angle levers 75, 76 which actuate the push rods 77, 78 and the rockers 79, 80 are arranged at an angle to one another such that that one of these elements, on the side of which a stop 81 for Parallel movement of a rail 83 is active, is pivoted from a rest position running at an acute angle to the circumferential plane of the forming rollers 15, 16 into a working position parallel to this circumferential plane.
  • the end of the bumpers 77, 78 which becomes active at a given time for parallel displacement of one of the rails, with its associated stop 81, is also simultaneously raised in the direction of movement of the rail 83, so that the stops 81 can be made narrow because they are also move in the circumferential direction with the shaping roller and therefore guide rollers of further rails 83 following in the same cam track 82 are not hindered by these stops. 4, the two extreme positions of the stop 81 are drawn in full line or in broken line.
  • a deflection pin 86a has moved from its initial position (not shown) into its end position shown in FIG. 7.
  • the wire D gripped by this deflecting pin comes from one of the deflecting rollers 8, 9, touches the pin 86a at the point T1 and partially wraps around it.
  • the wire D is touched by the next deflecting pin 86b, which is still in its rest position Mb.
  • points P1 to P3 must also lie on a conforming circle at the Evolute. This is the case when the deflection pin 86b is moved in a circular path around a point M which lies at the intersection of normals established in the centers of the chords P1-P2 and P2-P3.
  • the axes of the journals 85 of the support arms 84 which carry the rail 83 on which the deflecting pins 86b are arranged, must therefore be the generatrix of the cylinder jacket of the forming roll intersect at point M, and the axes of these support arms 84 must run parallel to the line M-Mb at the moment of contact of the wires D through the journals 86b.
  • FIGS. 8 to 10 show another embodiment of a device according to the invention.
  • the actual bending process in this embodiment is based on the same principle as in the embodiment shown in FIGS. 1 to 7, but instead of the forming rolls 15, 16 two bars 101, 102 are provided, which are parallel to the planes of movement in parallel to them Layers of wire 4, 7 fed back and forth can be moved.
  • At least two pairs of bearing journals 85 are provided on each of the two beams 101, 102, which bear rails 83 with deflection pins 86 on support arms 84 in the same way as shown in FIGS. 3 to 5.
  • at least two rows of immovably fixed preferred pins 103 are arranged on each of the two beams 101, 102, which engage in already formed bending points of the wires of the wire shares 4, 7 and thereby the already deformed wires in converging guides 20 and push it through to the welding station.
  • the two beams 101, 102 are connected to one another by means of joints 105 and can be opened and closed pivoting about these joints like the jaws of a pair of pliers.
  • joints 105 In the wire feed direction in front of the joints 105 of the bars 101, 102 there are automatic clamping devices 106, 107 - one for each wire to be fed - which, when the bars 101, 102 move forward, grasp the incoming wires of the wire shares 4, 7 and are not shown Pull off the reel, but slide the bars 101, 102 backwards along the wires as you move them back without taking them with you.
  • the entire drive is removed from a motor-driven shaft 110.
  • a first cam disk 111 (FIG. 10) sits on this shaft 110 and actuates a one-armed lever 112 via a scanning roller 113.
  • the one-armed lever 112 loaded by a return spring 114 is arranged in a rotationally fixed manner at the end of a shaft 115, along which two further one-armed levers 116 are wedged.
  • the levers 116 engage with sliding blocks 117 in correspondingly shaped slots in the articulated region of the beams 101, 102 and give these beams the common forward and reverse movement mentioned.
  • a spring-loaded angle lever 122 is actuated, which acts on a lever 124 via a bumper 123.
  • the lever 124 is connected in a rotationally fixed manner to a shaft 125, which is connected to a shaft 126, which is parallel to it and cooperates with it, for rotation via only indicated gear wheels.
  • the two shafts 125, 126 carry a number of one-armed levers 127, 128, which are provided with teeth 129, which engage laterally before electrodes 130, 131, and before they come into effect, into the grid meshes and thereby the overlapping and intended vertex areas for welding Bring two zigzag-shaped, adjacent wires into the correct relative position to each other. After the welding process, the levers 127, 128 swivel back into their rest position and release the grid mesh for the further transport of the grid.
  • the electrodes 130, 131 are designed as elongated rails in order to be able to detect two welding points each from two adjacent wires to be welded which overlap with their wave apices.
  • the upper electrodes 130 are arranged in a known manner in an electrode bar 140 which extends and moves up and down over the machine width and is resiliently supported with respect thereto.
  • the electrode bar 140 is articulated to two equally long, parallel, pivotably mounted levers 141, 142, of which the lever 142 extends beyond the electrode bar 140 and is connected by a joint 143 to a connecting rod 144, the other end of which is connected to an eccentric 145 is.
  • the electrode bar 130 is placed on the mesh mesh in the welding cycle and lifted off the mesh again.
  • the electrodes 130 are conductively connected to one another, so that the entirety of the electrodes 130 forms a passive current bridge.
  • the lower electrodes 131 are likewise arranged in a known manner along a machine-fixed bar 146 which extends across the machine width and are electrically insulated from this bar and also from one another.
  • the individual electrodes are conductively connected to the secondary sides of transformers, not shown, via flexible feed lines 147.
  • a third cam disk 150 interacts with two scanning rollers 151, 152. Each of these scanning rollers is arranged at the end of a two-armed lever 153, 154, which is wedged between its two arms on a shaft 155 and 156, respectively. The ends of the two-armed levers 153, 154 opposite the scanning rollers 151, 152 are connected to one another via a compression spring 157.
  • the cam disk 150 is shaped in such a way that the levers 153, 154 are always pivoted by the same angular amounts and in the same direction.
  • a one-armed lever 158 or 159 is connected, at the other end of which a bumper 160 or 161 is articulated.
  • the other ends of these bumpers 160, 161 are each connected to one of the beams 101, 102 on the side opposite the joints 105. Since, when the levers 153, 154 rotate in the same direction, for example the push rod 160 moves downward, but the push rod 161 moves upward, this lever system causes the bars 101, 102 to open and close around the joints 105.
  • the bumpers 160, 161 and the one-armed lever 116 must be parallel to one another in every movement phase of the beams 101, 1.02.
  • tere cam disks 170, 171 (Fig. 10) are provided which cooperate with scanning rollers 172, 173, which in Fig. 8 are in alignment with the scanning roller 152.
  • These scanning rollers are articulated at the lower ends of two-armed levers 174, 175, of which the lever 174 is freely rotatably mounted on the shaft 156, whereas the lever . 175 is mounted on its own shaft 176.
  • bumpers 177, 178 are articulated, which according to FIG. 9 are connected to shafts 181, 182 via levers 79, 180.
  • Components 183, 184 designed as control levers are connected in a rotationally fixed manner to the upper ends of the shafts 181, 182 and move the rails 83 from their rest position into their working position in order to carry out bending operations.
  • the control levers 183, 184 act against the rails 83 loaded by springs (not shown). These springs then also cause the rails 83 and the control lever 183 and their entire drive system to be reset as soon as the cams 170, 172 reset the control levers 183, 184 allow.
  • This last-described system thus takes over the function of the stops 81 and the cam tracks 82 of the embodiment of the invention shown in FIGS. 4 and 5.
  • This device works as follows: as soon as a feed and bending step has been completed, the levers 127, 128 pivot into the working position, the teeth 129 engage in the crest of adjacent wires located in the welding area and center them so that the crest of the adjacent wires - from to which one of the wire coulters 4 and the other of the wire coulters 7 belong - overlap by a predetermined amount.
  • the eccentrics 145 now move the connecting rods 144 downward, as a result of which the electrode bar 140 articulated on the levers 141, 142 is also moved downward and the electrodes 130 are pressed against the weld metal. After switching on the welding current, a welding is carried out.
  • the elements 150 to 161 are actuated in such a way that the beams 101, 102 are pivoted in opposite directions about the joints 105, moving away from one another.
  • the preferred pins 103, 104 and the deflection pins 86 disengage from the already bent wires of the wire shares 4 and 7.
  • the elements 112 to 117 cause the relaxing spring 114 to move the bars 101, 102 in FIG. 8 from right to left , wherein the clamps 106, 107 slide along the wires of the wire shares 4 and 7, so to speak, in idle mode.
  • control levers 183, 184 are controlled via the elements 170 to 175 and 177 to 182 in such a way that they can yield to the action of the springs loading the rails 83 and thus return the rails 83 to their rest position allow.
  • the elements 150 to 161 again cause the bars 101, 102 to close again by means of a pivoting movement about the joints 105 which is opposite to the first mentioned.
  • the preferred pins 103, 104 engage in the already formed shaft crests of the wires and the in Diverter pins 82 located in the rest position come to lie laterally next to the wires that are just tapering and assigned to them.
  • the teeth 129 are disengaged from the grid by the action of the elements 120 to 127 and at the same time the electrodes 130 are also raised above the elements 140 to 145 and now give in turn the grid is free again.
  • the elements 112 to 117 now begin to move the bars 101, 102 in FIG. 8 from left to right.
  • the clamping devices 106, 107 grip the incoming wires and take them with them as they move.
  • the preferred pins 103, 104 engaging in the already formed wave crests of the wires advance the already bent wires through the guide 20 to the welding station.
  • the control lever 184 is activated via the evenly numbered elements 172 to 182 and then, starting from the cam disc 171, the control lever 183 is activated via the odd numbered elements 173 to 181.
  • devices according to the invention can also be used for the production of support infills and the like.
  • devices according to the invention can also be used for the production of support infills and the like.
  • any other type of connection of the overlapping vertices of the deformed wires can also be used, for example by gluing, by connection by means of clamping elements or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP81890172A 1980-12-02 1981-10-20 Vorrichtung zum zickzackförmigen Biegen gerader Drähte, insbesondere für Maschinen zum Herstellen von Diagonalgittern Expired EP0053601B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0588580A AT372632B (de) 1980-12-02 1980-12-02 Vorrichtung zum zickzackfoermigen biegen gerader draehte, insbesondere fuer maschinen zum herstellen von diagonalgittern
AT5885/80 1980-12-02

Publications (2)

Publication Number Publication Date
EP0053601A1 EP0053601A1 (de) 1982-06-09
EP0053601B1 true EP0053601B1 (de) 1984-08-01

Family

ID=3580606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890172A Expired EP0053601B1 (de) 1980-12-02 1981-10-20 Vorrichtung zum zickzackförmigen Biegen gerader Drähte, insbesondere für Maschinen zum Herstellen von Diagonalgittern

Country Status (6)

Country Link
US (1) US4444227A (enrdf_load_stackoverflow)
EP (1) EP0053601B1 (enrdf_load_stackoverflow)
JP (2) JPS57118838A (enrdf_load_stackoverflow)
AT (1) AT372632B (enrdf_load_stackoverflow)
DD (1) DD201859A5 (enrdf_load_stackoverflow)
DE (1) DE3165254D1 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142511A (ja) * 1983-12-29 1985-07-27 株式会社村田製作所 蛇行状リ−ド線の成形方法およびその装置
AT379973B (de) * 1984-01-13 1986-03-25 Evg Entwicklung Verwert Ges Nach der elektrischen widerstandsmethode arbeitende gitterschweissmaschine
AT383292B (de) * 1985-07-18 1987-06-10 Evg Entwicklung Verwert Ges Vorrichtung zum kontinuierlichen vorschieben und lagenrichtigen festhalten der drahtschar im schweissbereich einer schweissmaschine zum herstellen von diagonalgittern
DE4007204A1 (de) * 1990-03-07 1991-09-12 Otto Bihler Bearbeitungsmaschine, insbesondere stanz- und biegeautomat stichwort: bearbeitungsmaschine mit stangensteuerung
DE19752515A1 (de) * 1997-11-27 1999-06-02 Haeussler Planung Gmbh Verfahren und Maschine zur Herstellung von aufgerollten Bewehrungsstabmatten
US20070095006A1 (en) * 2005-11-01 2007-05-03 Konersmann Ronald D Lightweight portable concrete enclosure and associated method of construction
CN113020347B (zh) * 2021-03-09 2023-05-26 广东铭利达科技有限公司 一种数控弯管机
CN116571648A (zh) * 2023-04-10 2023-08-11 芜湖勤惠科技有限公司 一种用于自动化生产线的上下料输送设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US755006A (en) * 1903-05-20 1904-03-22 Alfred W Smith Wire-clamping device.
US1908050A (en) * 1929-09-19 1933-05-09 Reed William Edgar Apparatus for making wire fabric
FR1075191A (fr) * 1952-10-21 1954-10-13 Procédé et machine pour la fabrication de grillages
US2868236A (en) * 1953-11-02 1959-01-13 W F And John Barnes Company Apparatus for making wire articles
AT317646B (de) * 1972-07-17 1974-09-10 Klaus Keller Dipl Ing Vorrichtung zum Biegen von Strebenschlangen
AT365491B (de) * 1979-06-12 1982-01-25 Evg Entwicklung Verwert Ges Elektrodenanordnung an einer gitterschweissmaschine

Also Published As

Publication number Publication date
ATA588580A (de) 1983-03-15
JPH0317572B2 (enrdf_load_stackoverflow) 1991-03-08
DE3165254D1 (en) 1984-09-06
JPH01284444A (ja) 1989-11-15
US4444227A (en) 1984-04-24
AT372632B (de) 1983-10-25
EP0053601A1 (de) 1982-06-09
JPS57118838A (en) 1982-07-23
JPH0119982B2 (enrdf_load_stackoverflow) 1989-04-13
DD201859A5 (de) 1983-08-17

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