Wire Mesh Welding Machine
Technical Data |
Wire Mesh Welding Machine
The construction permits the longitudinal wires to be fed directly from spools, automatically pulled as the fabric progresses whereas cross wires cut to length, straightened and fed into longitudinal wires during welding. It is advisable that customer provide a five roller straightener cum stand for proper feeding of long wires. Construction: Frame: Transformer:
Transformers are connected in group on primary side and secondaries are arranged in segments over the width of the machine. Bottom electrodes are mounted directly on the bus bars and are movable in ‘T’ slots for adjustment of pitch across the width. Electrodes are connected alternatively to two ends of secondary pressure head. Top electrodes serve the purpose of shorting the the neighbouring bottom electrodes These are connected to pressure heads which are mounted on top beam. The top beam slides up and down continuously in its guide, pressing the electrodes on bottom electrodes through spring, thus squeezing the wire between top and bottom electrodes. The pressure on wire adjusted by adjusting the compression of springs.
Drive System: Line wire Feeding: Cross wire feeder:
The feeder is adjustable for various diameters of cross wires. The signal for feeding a wire is taken from a limit switch operated by top beam. The machine is provided with synchronous solid state electronic control circuit consisting of squeeze timer, heat control card and thyristor firing systems. These pairs of thyristors are used for three phases controlling three sets of welding transformers. The initiation of firing is done by actuating a proximity switch during the operation of top beam automatically. The control provides squeeze and weld timer from 1 to 99 cycles. Cooling System: All bus bars, transformers and thyristors are water cooled by continuously running water through passages provided. |