EP0893176B1 - Maschine zur Herstellung von Armierungen für Stahlbetonrohr - Google Patents

Maschine zur Herstellung von Armierungen für Stahlbetonrohr Download PDF

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Publication number
EP0893176B1
EP0893176B1 EP97202300A EP97202300A EP0893176B1 EP 0893176 B1 EP0893176 B1 EP 0893176B1 EP 97202300 A EP97202300 A EP 97202300A EP 97202300 A EP97202300 A EP 97202300A EP 0893176 B1 EP0893176 B1 EP 0893176B1
Authority
EP
European Patent Office
Prior art keywords
bars
spiral
shaft
machine
bar
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 - Lifetime
Application number
EP97202300A
Other languages
English (en)
French (fr)
Other versions
EP0893176A1 (de
Inventor
Michel Querouil
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.)
Axis SA
Original Assignee
Axis SA
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 Axis SA filed Critical Axis SA
Priority to AT97202300T priority Critical patent/ATE202733T1/de
Priority to EP97202300A priority patent/EP0893176B1/de
Priority to ES97202300T priority patent/ES2160890T3/es
Priority to DE69705508T priority patent/DE69705508T2/de
Publication of EP0893176A1 publication Critical patent/EP0893176A1/de
Application granted granted Critical
Publication of EP0893176B1 publication Critical patent/EP0893176B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B21F27/122—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 a continuous stirrup to longitudinal wires

Definitions

  • the subject of the present invention is a machine intended to make reinforcements for the manufacture of reinforced concrete pipes in the field of urban sanitation according to the preamble of claim 1 (see e.g. JP-A-05 293579).
  • Reinforcements for concrete pipes can be made manually, from a thread metal wound in a spiral and then stretched on a template consisting of a rotating axis on which are articulated bars parallel to said axis and capable of being radially spaced from the latter depending on the diameter to give to the drawn wire spiral.
  • the spiral of wire is secured by one of its ends to a larger diameter ring, through angled fixing lugs, to form an end female in order to allow the assembly of the pipes in concrete between them.
  • the operator welds, at using a welding gun, straight generators or zigzag along the spiral to maintain it in its final form.
  • automatic machines which include in particular means for winding a wire to form a spiral whose turns have a shape substantially polygonal and the number of sides is depending on the number of generators to be welded to the armature spiral, the latter being welded to the wire simultaneously with the realization of the spiral.
  • the object of the present invention is to remedy to these disadvantages by proposing a machine intended for make reinforcements for the manufacture of pipes in concrete, from a wire wound in a spiral, said machine to obtain better welds quality and more resistant while allowing time shorter manufacturing and handling simplified.
  • the machine according to the invention comprises a horizontal shaft movable in axial rotation, carrying the at least three bars which are parallel to it, movable in spacing and approximation with respect to said shaft so as to form a template for the realization of the metal frame, and it is characterized basically on the one hand in that the part of each of said bars in contact with the spiral metallic conductor of electric current and constitutes an electrode, and on the other hand in that it has a plurality of electrodes intended to come successively in contact with a segment of a generator placed on the metal spiral, against which it is held in place, allowing with the electrode to the bar to perform the welding of the generator and the spiral at at least one point.
  • each bar is articulated to another bar via links, the relative displacement of said bars being ensured by a cylinder, the internal bar being fixedly secured to the shaft and electrically isolated from the other.
  • each electrode is in the form of a plate mounted at the end of the rod of a jack carried by a beam secured to a jib and movable in translation vertical above the template, said beam carrying also a jack with which the end of the rod is provided a plate connected to ground and intended to come to the contact of one of the busbars.
  • adjusting the spacing turns is achieved by means of a comb secured to the beam and mobile in vertical translation and horizontal, or pivotally mounted on the bars secured to the axis of rotation of the template.
  • the generators are maintained on the turn during the welding operation using permanent or electromagnetic magnets.
  • the machine according to the invention comprises a platform 1, transportable, supporting a jib 10 comprising four vertical uprights 11, two of which are visible in the figure, on which are mounted in translation vertical two parallel 12 'sliding rails each by its ends on two uprights vertical 11, on which are secured perpendicularly, in the middle, the ends a beam 12 carrying welding cylinders 21.
  • a horizontal shaft 3 is pivotally mounted along its axis and is secured to pairs of bars 5, of which only two are visible in the figure, which are parallel and regularly spaced one of the other, via spacers 30 screwed, the assembly forming a template for the creation of a metal frame.
  • the shaft 3 is rotated by one of its ends by means of a geared motor with encoder, not shown, placed in an enclosure 4 and controlled manually by a push button or automatically by the machine control program.
  • Bars 50 and 51 of each pair 5 are articulated to each other by means of rods 52, in so that the two bars 50 and 51 can move apart from each other by means of a jack 53.
  • the operator after having adjusted the spacing of the bars internal 50 relative to shaft 3 using parts spacing 30 and extended a metal spiral 6 around the bars 5, controls the spacing of the bars 50 and 51 between them under the effect of the jacks 53, generating an expansion of the spiral 6 until reaching the diameter fixed to form a reinforcement for pipes in concrete.
  • the face of the external bars 51 in contact with the metal spiral 6 is made of a material conductor of electric current, so as to form an electrode.
  • the template has three pairs of bars 50 and 51 spaced 120 ° apart and a generator 7 metal is positioned externally to the spiral 6 using a slide 70 secured to the platform 1 via a support, and is maintained in contact with the turns 60 of the spiral 6, along the outer bar 51 of the pair of bars 5 located at height from the bottom of said slide 70, by means of magnets secured to the outer face of the outer bar 51 in contact with the metal spiral 6.
  • the generator 7 is then brought opposite the welding cylinders 2 under the effect of a 120 ° rotation of the shaft 3.
  • the generators 7 can also be held in place with permanent magnets or electromagnetic fixed to the end of rods cylinders integral with beam 12, or again using the comb for template.
  • the beam 12 carries on the one hand a jack 20 whose end of the rod is intended to come into contact with the face upper of bars 51 and is connected to earth 80 an electric welding circuit, not shown, and on the other hand four welding cylinders 21 each carrying at their end an electrode connected to the power supply of the electrical circuit, in the form of a plate rectangular whose length is defined so to allow the welding of a section of a generator 7 several turns of the metal wire 6.
  • the beam 12 carries also two jacks 23 whose rod carries a electrode connected to the power supply and intended to come to the contact of one end of a bent leg allowing the joining at one end of spiral 6 of a larger metal ring 61 diameter than that of the latter in order to achieve a female end of the metal frame.
  • the machine according to the invention comprises also a support mechanism 9 fixed on the platform 1, under the template, and consisting of an arm 90 provided at its free end of two rollers 91 intended for support the jig shaft, pivotally mounted, by its other end, on a part 92 movable in translation horizontal on a guide 93, and comprising, not far from this end, a leg 94 pivotally mounted around an axis secured to the end of a link 95 pivotally mounted, by its other end, around a axis 96 secured to guide 93.
  • the arm 90 When the moving part 92 is in a position distant from the pivot axis 96, the arm 90 is in the supine position, and in the vertical as shown in the figure, when the moving part 92 is in the immediate vicinity of the axis of pivot 96.
  • a jack 20 or 23 comprises an electrode 200, secured to the end of the rod 201 of the jack by by means of a plate 202 made of insulating material, connected to a pole of the electrical circuit supply welding, not shown, via a conductive braid 20.
  • the operator takes the ring and the spiral metal 6 and thread them onto the template from the end free from the rotating shaft 3 and controls the rise of the arm 90 of mechanism 9 in order to support the end free from shaft 3 of the template by means of two rollers 91. He then proceeds to expand the template by controlling the spacing of the two parts 50 and 51 constituting the bars 5, and adjusts the spacing of the turns of the wire 6.
  • the operator positions a generator 7 in the slide 70 located in the position before welding position, then command the rotation of the shaft 3 by 120 ° so as to present the generator 7 under the beam 12.
  • the operator controls the descent of the cylinder electrode connected to the mass to position it against the conductive face of the outer bar 51 of arm 5 opposite, then the successive descents of the welding cylinders 21.
  • bars 50 and 51 will be advantageously each consisting of two segments substantially the same length.
  • the welding circuit will then include two transformers each supplying a series of cylinders for each segment, each series each consisting of a cylinder carrying a electrode connected to the ground of the electrical circuit and intended to come into contact with the conductive face of external bars 51, and jacks carrying an electrode connected to the welding circuit supply and intended to come into contact with the generator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Moulding By Coating Moulds (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Piles And Underground Anchors (AREA)

Claims (4)

  1. Maschine zum Erstellen von Armierungen für die Herstellung von Stahlbetonrohren der Art mit einer horizontalen, axial drehbaren Welle (3), die mindestens drei Stangen (5) aufweist, welche parallel zu ihr verlaufen und relativ zur Welle (3) so voneinander weg und zueinander hin bewegbar sind, daß sie eine Lehre zum Ausbilden der Metallarmierung bilden, wobei die Maschine dadurch gekennzeichnet ist, daß einerseits der Teil jeder Stange (5), der in Kontakt mit der Metallspirale (6) steht, elektrisch leitfähig ist und eine Elektrode bildet, und daß sie andererseits mehrere Elektroden aufweist, die dazu bestimmt sind, nacheinander mit einem Abschnitt eines Generators (7) in Kontakt zu kommen, der auf der Metallspirale (6) angeordnet ist, gegen die er in seiner Position gehalten wird, so daß mit der Elektrode der Stange (5) das Verschweißen des Generators (7) und der Spirale (6) an mindestens einer Stelle möglich ist.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die Stangen (5) aus Stangenpaaren (50, 51) bestehen.
  3. Maschine nach Anspruch 2, dadurch gekennzeichnet, daß jede Stange (51) mittels Schwingarmen an eine andere Stange (50) angelenkt ist, die Relativverschiebung der Stangen (50, 51) durch ein Stellglied (53) sichergestellt wird, und die innere Stange (50) fest mit der Welle (3) verbunden und gegenüber der anderen elektrisch isoliert ist.
  4. Maschine nach Anspruch 3, dadurch gekennzeichnet, daß jede Elektrode (200) in Form einer Platte (202) vorliegt, die am Ende des Schaftes (201) eines Stellglieds (20, 21, 23) montiert ist, das von einem Träger (12) getragen wird, welcher fest mit einem Ausleger verbunden und vertikal verschiebbar oberhalb der Lehre beweglich ist.
EP97202300A 1997-07-25 1997-07-25 Maschine zur Herstellung von Armierungen für Stahlbetonrohr Expired - Lifetime EP0893176B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT97202300T ATE202733T1 (de) 1997-07-25 1997-07-25 Maschine zur herstellung von armierungen für stahlbetonrohr
EP97202300A EP0893176B1 (de) 1997-07-25 1997-07-25 Maschine zur Herstellung von Armierungen für Stahlbetonrohr
ES97202300T ES2160890T3 (es) 1997-07-25 1997-07-25 Maquina para producir las armaduras de refuerzo para tubos de hormigon armado.
DE69705508T DE69705508T2 (de) 1997-07-25 1997-07-25 Maschine zur Herstellung von Armierungen für Stahlbetonrohr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97202300A EP0893176B1 (de) 1997-07-25 1997-07-25 Maschine zur Herstellung von Armierungen für Stahlbetonrohr

Publications (2)

Publication Number Publication Date
EP0893176A1 EP0893176A1 (de) 1999-01-27
EP0893176B1 true EP0893176B1 (de) 2001-07-04

Family

ID=8228583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202300A Expired - Lifetime EP0893176B1 (de) 1997-07-25 1997-07-25 Maschine zur Herstellung von Armierungen für Stahlbetonrohr

Country Status (4)

Country Link
EP (1) EP0893176B1 (de)
AT (1) ATE202733T1 (de)
DE (1) DE69705508T2 (de)
ES (1) ES2160890T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1003696B (el) * 2000-10-04 2001-10-16 Ιννοβεισιον Ανωνυμη Εμπορικη Εταιρεια Μεθοδος και μηχανη διαμορφωσης εγκαρσιου οπλισμου σε κολωνες και δοκους.
RU2445184C1 (ru) * 2010-12-16 2012-03-20 Лема Хамидович Базаев Станок для изготовления элемента арматурного каркаса заданного профиля

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878760A (en) * 1927-12-19 1932-09-20 Hume Steel Ltd Method of and apparatus for use in the manufacture of metallic meshing, netting, andlike fabric
US2091540A (en) * 1936-07-18 1937-08-31 American Concrete & Steel Pipe Means for making reinforcement wire cages
US2473859A (en) * 1946-01-02 1949-06-21 American Pipe & Constr Co Method and apparatus for welding structural cages
US2786127A (en) * 1954-04-07 1957-03-19 Price Brothers Co Work support for welders
DE1817206B1 (de) * 1968-12-27 1970-12-23 Koushuhanetsuren Kabushiki Kai Verfahren zur Erhaltung der mechanischen Eigenschaften von verschweisstem Baustahlmaterial an Punktschweissungen bei der Herstellung von vorgespannten Stahlstabkaefigen fuer Spannbetonkonstruktionen
DE3634736C2 (de) * 1986-10-11 1995-11-16 Mbk Maschinenbau Gmbh Maschine zur Herstellung rohrförmiger Bewehrungskörper für Betonrohre
JPH05293579A (ja) * 1992-04-24 1993-11-09 Sumitomo Shoji Kk 鉄筋籠および鉄筋籠編成機

Also Published As

Publication number Publication date
ATE202733T1 (de) 2001-07-15
DE69705508T2 (de) 2002-04-25
ES2160890T3 (es) 2001-11-16
DE69705508D1 (de) 2001-08-09
EP0893176A1 (de) 1999-01-27

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