Welding machine for the production of wire grid sheet
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United States of America Patent
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Jul 24, 2007
Grant Date -
Jan 11, 2007
app pub date -
Mar 22, 2005
filing date -
Mar 25, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A welding machine, operating by the electric resistance welding method, for producing wire grid mat of longitudinal and transverse wires (L, Q) crossing one another and welded together at the crossing points, having a plurality of welding units (1, 1'), located transversely to the production direction, which at least for each longitudinal wire have one upper welding head (2) with an upper electrode, located above the grid production plane (X-X), and one lower welding head (5) along with a lower electrode movable counter to the upper electrode, the lower welding head being located below the grid production plane (X-X), having a common rail system (26, 28, 31) with at least two common rails extending along the welding line (S-S), for delivering the welding current to the welding electrodes, in which for continuously variable positioning of all the welding units transversely to the production direction (P1) along the welding line, adjusting devices (56, 57) and clamping devices (64, 65, 66; 64', 65', 66') as well as drive mechanisms (60, 60', 60''; 61, 62, 63) are provided.
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