DISPOSITIVO E PROCESSO PARA ALIMENTAÇÃO DE ARAMES TRANSVERSAIS ACIMA E ABAIXO DE UMA LINHA DE PRODUÇÃO PARA ESTEIRAS DE MALHAS

Abstract

DEVICE AND PROCESS FOR FEEDING TRANSVERSE WIRES IN A MESH WELDING MACHINE. The present invention relates to a device for feeding transverse wires (1) above and below a production line for mesh belts (3), which consist of welded transverse and longitudinal wires, comprising an upper transverse wire feeder, which has a guide channel (5) and which is arranged in a first position, in which transverse wires (1) are fed along the guide channel (5) to the production line, as well as a lower transverse wire feeder (7), through which transverse wires (1) can be transported from below to the production line, characterized in that a lower transverse wire storage (8) is provided, from which transverse wires (1) can be withdrawn by the lower transverse wire feeder,and that the upper cross wire feeder is formed as a cross wire diverter (4), which can be rotated to at least one second position, and that by the cross wire diverter (4) in the second position, the cross wire hopper (8) can be supplied with cross wires.

Description

1 / 9 DEVICE AND PROCESS FOR FEEDING TRANSVERSE WIRES ABOVE AND BELOW A PRODUCTION LINE FOR KNITTING CONVEYOR BELTS

[001] The present invention relates to a device for feeding transverse wires above and below a production line for mesh belts, which consist of welded transverse and longitudinal wires, and which comprises a transverse wire feeder, which has a guide channel and which is arranged in a first position, in which transverse wires are fed along the guide channel of the production line, as well as a lower transverse wire feeder, by which transverse wires can be transported from below to the production line.The invention also relates to a process for feeding transverse wires to a production line for mesh belts with transverse wires located above and below, which are welded with a set of longitudinal wires, with the repetitive sequence of steps: (i) withdrawal of a transverse wire from a deposit in a guide channel of an upper transverse wire feeder, located above the production line, (ii) feeding the transverse wire from step (i) to the set of longitudinal wires, then withdrawal of a transverse wire from a transverse wire deposit, located below the production line by a lower transverse wire feeder, also located below the production line, then feeding the transverse wire from the preceding step to a set of longitudinal wires.

[002] To prevent unwanted access to property, company areas and private land are delimited. This can be done in different ways, but delimitation with fences made of steel wire, consisting of fence strips, has proven to be the most economically efficient. Petition 870260016494, dated 23 / 02 / 2026, page 6 / 38 2 / 9

[003] The various variants of fence mats may be configured in such a way that transverse wires are arranged exactly above or below the longitudinal wire, transverse wire / transverse wires, alternating above or below in length, pairs of transverse wires above and pairs of transverse wires below the longitudinal wire, the fence mats are welded with transverse wires above or transverse wires just below the longitudinal wires.

[004] With a succession of fence mats with transverse wires above the longitudinal wires and with transverse wires below the longitudinal wires, the height of the pile can be reduced by approximately half.

[005] The state of the art is that fence mats, for example, double-bar fence mats, can be produced with double bars, situated transversely to the direction of production, that is, one transverse wire is above and one transverse wire is below the longitudinal wire. The transverse wires, to be welded exactly opposite each other on the double-bar fence mat, are welded during the production of the fence mat in the welding system in the identical position. It is also in the state of the art that in smaller numbers of pieces, fence mats can be produced from pre-cut longitudinal wires.

[006] One problem with the prior art is that, due to the configuration of the fence strands, substantially more wires are welded than crossbars, and this can result in downtime between the production of individual fence strands. For example, in a standard double-bar fence strand measuring 3 x 2 m, the time ratio between preparing the longitudinal wires and producing the fence strand can be as high as 2:1. Petition 870260016494, dated 23 / 02 / 2026, p. 7 / 38 3 / 9

[007] The pre-cut crosswires needed for production are, until now, fed into the welding machine from a crosswire hopper, which separates the crosswires from a roll, or supplied by an inline wire alignment system.

[008] In order to produce these double bar fence mats or also fence mesh mats with transverse wire above or below the longitudinal wire, currently two transverse wire depots are arranged, one depot above the production line, one depot below or below and to the side of the production line.

[009] The disadvantage of the variant with the transverse wire deposit below the production line lies in the filling, maintenance and suppression of defects in the separation of the transverse wires or in the feeding of the transverse wires.

[0010] The disadvantage of the variant with the transverse wire deposit below and to the side of the production line lies in the need for additional space and an additional conveyor device for the welding line. To ensure production with appropriate speed and positional accuracy, it must be equipped with a complex electric drive system. Another disadvantage is that modifications to the transverse wire diameter and length always require conversion. In summary, the disadvantages of the transverse wire variants presented above lie in the investment, maintenance, and installation costs.

[0011] The invention now aims to avoid the disadvantages mentioned previously. The device according to the invention achieves this by the fact that a lower transverse wire storage compartment is provided, from which wires can be removed. Petition 870260016494, dated 23 / 02 / 2026, page 8 / 38 4 / 9 transverse wires are fed by the lower transverse wire feeder, and the upper transverse wire feeder is formed as a transverse wire diverter, which can be rotated to at least one second position, such that by the transverse wire diverter in the second position, the lower transverse wire hopper can be fed with transverse wires.

[0012] The process according to the invention overcomes the disadvantages of the prior art in that after step (ii) and before the subsequent step, the following steps occur: (iii) Withdrawal of another cross wire from a deposit in the guide channel of the upper cross wire feeder and rotation of the cross wire feeder, formed as a cross wire deflection, to a second position, (iv) feeding of the cross wire from pitch (iii) to a parking position of the lower cross wire warehouse, (v) rotation of the cross wire deflection back to the first position.

[0013] Other features of the system and process according to the invention are found in the dependent claims.

[0014] The invention is explained in more detail below by means of an embodiment represented in the drawings. Figures 1 and 3 show, in each case, a schematic side view of the device; Figure 2 shows a schematic side view with the mesh conveyor belt suppressed.

[0015] According to Figure 1, an element is produced, for example, of a double-bar fence mat, in the form of a wire mesh mat 3 by welding transverse wires 1, located above and below, with a set of longitudinal wires 2. The set of longitudinal wires 2 (in Figures 1 and 3, in lateral view) Petition 870260016494, dated 23 / 02 / 2026, p. 9 / 38 5 / 9 ral is seen only as a longitudinal wire 2) is situated in a production line and is advanced cyclically along the production direction P. The fed transverse wires 1 come to rest at the transverse wire stop 12 and are welded to the longitudinal wires by means of upper electrodes 14 and lower electrodes 15, according to the electrical resistance method.

[0016] For cyclic transverse wire feeding, a transverse wire hopper (not shown) is fitted with a transverse wire diverter 4, so that during a production stoppage in the conveyor belts, a transverse wire hopper 8 – which may also be a transverse wire hopper below the production line – can be filled. The downtime, still problematic in the prior art, is advantageously exploited by the invention.

[0017] The transverse wire diverter 4 is designed in such a way that a guide channel 5 can be rotated to two predefined positions (or a plurality of positions). The first position, as shown in Figure 1, serves to feed a transverse wire 1 above the production line, directly to the production line or welding line. In the second position of the guide channel 5 (see Figure 2), the transverse wire hopper 8 – or also the lower transverse wire hopper – can be filled below the production line. The guide channel 5, in the simplest case according to Figures 1 to 3, runs along the arm of the transverse wire diverter 4, in which, along the Q direction, a transverse wire 1 is guided to the predetermined location.The exit of guide channel 5, in the first position, is the predetermined location for welding a cross wire 1 to the cross wire stop 12 and, in the second position, a parking position on a carriage 9 of the lower cross wire storage 7. The cross wire feeds. Petition 870260016494, dated 23 / 02 / 2026, page 10 / 38 The 6 / 9 crossbars located above and below are shaped in such a way that they can bring the crossbars to an identical position (opposite to the longitudinal wires 2), as seen in the direction of flow.

[0018] The transverse wire diverter 4 is mounted on a rotating pin, which is situated on an axis, so that the transverse wire diverter 4 can rotate between at least two positions. The axis 6 extends parallel to the longitudinal axes of the transverse wires to be processed. It is only necessary to observe in the construction of the device that the transverse wire diverter 4 can be rotated between other elements of the device, as well as on a wire mesh conveyor, which is in production.

[0019] The crosswire storage 8, which is positioned below the production line, is designed in such a way that a sufficient number of crosswires can be received individually and, if necessary, delivered again to a lower crosswire feeder 7. As it is useful to design the production line horizontally with respect to gravity, the regions, which are also arranged along the direction of the force of gravity, are defined above and below the production line.

[0020] According to figure 2, the crosswire storage 8 consists of a group of wire receiving elements (e.g., cars 9), which are arranged on a continuous conveyor chain 10 and are cyclically movable in the R direction. The storage volume of the crosswire storage 8 can be sized small or large and thus help to adapt production and operating costs; of the parking positions for crosswires 1, in current operation, few, up to approximately 100, can be effectively occupied with crosswires 1.

[0021] The transverse wire feed 7, positioned below Petition 870260016494, dated 23 / 02 / 2026, page 11 / 38 7 / 9 of the production line, serves to feed the transverse wire 1 into the welding line and, due to the short travel paths, can be carried out very simply. According to Figure 3, the length of the travel path is determined only by the minimum distance from a position of a wire receiving element with a transverse wire 1 to be transported, to the welding location below the production line. The feeding of transverse wires 7, in the simplest case, is a fork, which lifts the transverse wire 1 from a wire receiving element, formed as a carriage 9, using the force of gravity and, optionally, simple retention means, and compresses it from below onto the longitudinal wires 2. This short travel path also allows for a very dynamic working mode, with short cycle times.

[0022] According to the current automatic mesh welding process, a pre-prepared set of longitudinal wires 2, as shown in figures 1 and 3, is advanced cyclically in the production direction P. An upper and a lower feed bring two transverse wires 1 opposite the longitudinal wires 2 to a position where they are welded. Previously, the feeds removed the transverse wires 1 from transverse wire stores. To these repetitive steps for the production of, for example, a double fence bar mat, are now added the steps of rotating the upper feed in the form of a transverse wire diversion 4 to a second position, for filling the small transverse wire storage 8, and the transfer of one or also a plurality of transverse wires to this transverse wire storage 8.Then, the transverse wire diverter 4 rotates back to its first position, to feed the next transverse wire 1 from above to the production line. The invention. Petition 870260016494, dated 23 / 02 / 2026, page 12 / 38 8 / 9 takes advantage of the unavoidable machine downtime between the production of successive conveyor belts or between welding operations: That is, the time needed for production is also available for filling the crosswire 8 warehouse (or the crosswire storage).

[0023] In one variant, the transverse wire diverter 4 could transfer a transverse wire 1 directly to the lower transverse wire feed 7. A transverse wire stock 8 could then be entirely eliminated, reduced by the disadvantage that there is no longer any compensating stock in transverse wires 1. This would be possible, for example, in welding the first pair of transverse wires of a conveyor belt, the longitudinal wires not yet arriving within the displacement path of the transverse wire diverter 4.

[0024] In another variant, the volumetric capacity of the transverse wire hopper 8 is such that the number of transverse wires 1 for a complete mesh belt can be received within it. Thus, the transverse wire hopper 8 could be filled in the period between the production of two successive mesh belts. The advantage of the invention is still obtained even when the lower transverse wire hopper comprises the number of transverse wires 1 for a total stack of belts and, for this purpose, is filled once before the start of production.

[0025] In another alternative, the transverse wire warehouse 8 is moved laterally outwards to be supplied beyond the production line or beyond a mesh conveyor that is in production. The technician then selects established means to also correspondingly divert the transverse wire 4 laterally.

[0026] Another advantage of the process is that pro Petition 870260016494, dated 23 / 02 / 2026, page 13 / 38 9 / 9 gram the course of the repetitive step sequence for the production of mesh belts, also along with the supply of the transverse wire warehouse 8 by diverting transverse wires 4 within the scope of the electronic control of any method used. The synchronized process steps can also be embedded in an environment, with the exchange of the transverse wire material. Petition 870260016494, dated 23 / 02 / 2026, page 14 / 38

Claims

1 / 3 CLAIMS 1. Device for feeding transverse wires (1) above and below a production line for mesh belts (3), consisting of welded transverse and longitudinal wires, comprising an upper transverse wire feeder, which has a guide channel (5) and which is arranged in a first position, in which transverse wires (1) are fed along the guide channel (5) to the production line, as well as a lower transverse wire feeder (7), through which transverse wires (1) can be transported from below to the production line, wherein there is a lower transverse wire storage (8), from which transverse wires (1) can be withdrawn by the lower transverse wire feeder, characterized in that the upper transverse wire feeder is formed as a transverse wire diverter (4), which can be rotated to at least one second position,given that by diverting the transverse wires (4) in the second position, the transverse wire warehouse (8) can be supplied with transverse wires.

2. Device according to claim 1, characterized in that the transverse wire deflector (4) is an arm which, through an axis (6) situated parallel to the axis of processed transverse wires (1), can be rotated between the first and second positions.

3. Device, according to claim 1 or 2, characterized in that the outlet of the guide channel (5) of the transverse wire diverter (4) in the second position, is situated in a parking position for transverse wires (1) of the lower transverse wire storage (8).

4. Device, according to any one of claims 1 to 3, characterized in that the lower transverse wire storage (8) comprises wire receiving elements, for receiving transverse wires (1), which are arranged in a continuous conveyor chain (10).

5. Device according to any one of claims 1 to 4, characterized in that the transverse wire feeder (7) comprises at least one fork, by which a separate transverse wire (1) can be lifted into the production line.

6. Device according to any one of claims 1 to 5, characterized in that the transverse wire diverter (4) is connected with a transverse wire deposit (1), such that separate transverse wires (1) can be received in its guide channel (5).

7. Process for feeding transverse wires (1) to a production line for mesh belts (3), with transverse wires (1), located above and below, which are welded with a set of longitudinal wires (2), with the repetitive sequence of steps (i) removal of a transverse wire (1) from a deposit in a guide channel (5) of an upper transverse wire feeder, located above the production line; (ii) feeding of the transverse wire (1) from step (i) to the set of longitudinal wires (2); (vi) removal of a transverse wire (1) from a transverse wire warehouse (8), located below the production line, by a lower transverse wire feeder (7), also located below the production line; (vii) feeding of the transverse wire (1) of pitch (vi) to a set of longitudinal wires (2), characterized in that after pitch (iii) and before Petition 870260016494, of 23 / 02 / 2026, page.16 / 38 3 / 3 of step (vi), the following steps occur: (iii) removal of another cross wire (1) from a deposit in the guide channel (5) of the cross wire feeder and rotation of the cross wire feeder, formed as a cross wire diverter (4), to a second position, (iv) feeding of cross wire 1 from step (iii) to a parking position of the cross wire warehouse (8), (v) rotation of the cross wire diverter (4) back to the first position.

8. Process for producing mesh belts (3) with the process steps according to claim 7, characterized in that it has the following repetitive steps: - cyclical advance of a set of longitudinal wires (2) in a production line, - welding of a pair of upper and lower transverse wires (1) fed with the set of longitudinal wires (2). Petition 870260016494, dated 23 / 02 / 2026, page 17 / 38

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