DE8609052U1 - Welding machine for mats consisting of longitudinal and transverse wires, especially for concrete reinforcement purposes - Google Patents

Description

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COHAUSZ & FLORACK

PATENTAN WAL.TSBÜRO SCHUMANNSTR.97 D'4000 DÜSSELDORF!

Telephone: (0211) 683346 ■ Fax: (0211) 6790871 - Telex: 8586513 cop d

PATENT ATTORNEYS: Dipl.-lng. W. COHAUSZ ■ Dipl.-lng. R. KNAUF · Dipl.-lng. H. B. COHAUSZ ■ Dipl.-lng. D. H. WERNER ■ Df. re«, rial. B. REDIES

03*0*1.1936 - 3 - KN/So 46041

Structural Steel Fabrics GmbH
Burggräfenstrasse 5
4000 Dusseldorf 11

Welding machine for mats consisting of longitudinal and transverse wires, especially for concrete reinforcement purposes

The invention relates to a welding machine for mats consisting of longitudinal and transverse wires, in particular for concrete reinforcement purposes, consisting of several welding units arranged next to one another, the mutual distances of which, in particular, are adjustable and correspond to the distances between the longitudinal wires, and of transport elements for the longitudinal and transverse wires assigned to the welding units, as well as of a threader for the longitudinal wires arranged upstream of the welding units in the transport direction of the longitudinal wires.

Welding machines of this type are known (DE 34 22 540A1). The advantage of such welding machines is that when the program is changed, the individual welding units are moved to the new positions by motor. The repositioning makes it necessary to also

Readjust the feed of the longitudinal wires. f

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The invention is based on the object of providing a welding {

machine of the type mentioned above, which is equipped with J

simple means a distance-correct supply of the

of longitudinal wires to the welding units enables

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This object is achieved according to the invention in that the threader has a carriage that can be moved on rails in the transport direction of the longitudinal wires and has clamping pliers for the longitudinal wires that can be moved on a cross member, whereby the clamping pliers can be clamped to the cross member by a bellows that is arranged between them and the cross member and can be pressurized with a pressure medium.

With the threader, which is only required for threading the beginnings of the longitudinal wire into the longitudinal wire transport devices of the welding units, the clamping tongs can be freely moved on the cross member into the position corresponding to the welding units if the bellows are not pressurized. If all the clamping tongs are pushed into the correct position, they are clamped together by applying pressure to the cross member. This fixation is not tied to a specific grid dimension, but can be done at any point on the cross member.

Preferably, each clamping length is mounted on the guide rails of the cross member in the manner of a slide. A particularly simple design is one in which the bellows is a hose that extends over the entire adjustment length of the clamps and is held in a bed of the cross member.

The invention is explained in more detail below using a drawing that schematically shows an embodiment. In detail,

Fig. 1 a welding machine with a threader arranged in the transport direction of the longitudinal wires,

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^. Fig. 3 one of the clamps according to Fig. 2 with

Beam in section along line I - I of Fig. 2.

The welding machine has several independent welding units 1 arranged next to each other at a distance from each other. The welding units can be moved on a rail, as is known per se (DE 34 22 540 A 1). On the inlet side they have guide sleeves 2 for longitudinal wires and a driven pair of rollers 3 for transporting the longitudinal wires. On the outlet side each welding unit 1 has a welding tong 4, via which the welding power is introduced into the longitudinal and transverse wires clamped crosswise by it.

_ The welding units 1 are preceded by a threader which 20

a carriage 6 that can be moved on rails 5.

Several clamping pliers 9 are slidably mounted on a cross member 7, which is held on the carriage 6 in a height-adjustable manner by means of a cylinder-piston unit 8. The clamping jaws of the clamping pliers 9 are actuated via a 25

Cylinder piston arrangement 10. The clamping jaws can clamp one longitudinal wire 11 or two longitudinal wires 12,13, as shown in Fig. 2. Each clamping pliers 9 is guided with two runners 14,15 on rails 16,17 of the carrier 7. A tubular bellows 20, which can be pressurized with liquid or gaseous medium, is held in a bed formed by angle profiles δ,19. When pressure is applied to the bellows 20, the clamping pliers 9 are clamped in their position.

At the beginning of the pre-threader’s travel path, a pre-threader 21 is arranged, which comprises a bed 23 for the longitudinal wire beginnings, which is adjustable in height by a cylinder piston arrangement 22, and a front stop 25 for aligning the longitudinal wire beginnings, which can be folded down by a cylinder piston arrangement 24. Between the pre-threader 21 and the welding units, several roller-equipped supports 26 to

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In the welding machine according to the invention, it is possible to use the threader to insert the longitudinal wires into the transport devices 3 of the welding units in an aligned manner at the longitudinal wire spacing corresponding to the welding units. Without great mechanical effort, the individual clamping tongs 9 can be brought into position when the bellows are depressurized and fixed together by applying pressure.

Claims (3)

&igr; · « ··· avf » ■■· « ··■ n« ^ni J ■ ■·***« «Iff»·· ·· · dl I ·■ · «ar« COHAUSZ & FLORACK PATENT ATTORNEY’S OFFICE SCHUMANNSTR. 97 D-4000 DÜSSELDORF 1 Telephone: (0211) 683346 - Fax: (0211) 6790871 · Telex: 8586513 cop d PATENT ATTORNEYS DipUng. W. COHAUSZ · DipL-lng. R KNAUF - DipL-Ing. H. B. COHAUSZ - Dipl.-ing. D. H. WERNER ■ Dr. rer. naL B. REDIES 03.04.1986 - 1 - KN/So 46041 Expectations 1. Welding machine for mats consisting of longitudinal and transverse wires, in particular for concrete reinforcement purposes, consisting of several welding units arranged next to one another, the mutual spacing of which, in particular, is adjustable and corresponds to the spacing of the longitudinal wires, and transport elements for the longitudinal and transverse wires assigned to the welding units, as well as a threader for the longitudinal wires arranged upstream of the welding units in the transport direction of the longitudinal wires, characterized in that the threader comprises a carriage (6) which can be moved on rails (15) in the transport direction of the longitudinal wires (11 to 13) and has clamping tongs (9) for the longitudinal wires (11 to 13) which can be moved on a cross member (7), the clamping tongs (9) being able to be clamped to the cross member (7) by a bellows (20) which is arranged between them and the cross member (7) and can be pressurized with a pressure medium. 2. Welding machine according to claim 1, characterized in that each clamping pliers (9) is mounted in the manner of a slide on guide rails (16,17) of the cross member (7). 3. Welding machine according to claim 1 or 2, characterized in that i Ii ti ti Mil If &Ggr; I t Il * I · · # I ti Ii i it I t * I ( t t I t II · ill lit I * I II «I * * III ■*«* If > I I J the bellows (20) is a hose extending over the entire adjustment length of the clamping pliers (9) and held in a bed (18,19) of the cross member (7). Il f * ·