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Continuous, automatic mesh welding structure and method

  • US 4,328,409 A
  • Filed: 11/08/1979
  • Issued: 05/04/1982
  • Est. Priority Date: 08/30/1977
  • Status: Expired due to Term
First Claim
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1. Structure for continuously, automatically welding heavy steel mesh comprising means for supporting initial longitudinally extending reinforcing rods in transversely spaced apart parallel positions, means operably associated with the longitudinally extending reinforcing rods for automatically feeding transversely extending reinforcing rods onto the longitudinally extending reinforcing rods one at a time at a predetermined welding position comprising a mesh engaging member having a guiding surface extending parallel to the longitudinally extending reinforcing rods and positioned above the longitudinally extending reinforcing rods approximately the diameter of the transversely extending reinforcing rods and terminating in an abutment surface adjacent the welding position, a positioning member extending above the guiding surface on the mesh engaging member, piston and cylinder structure mounting said positioning member for reciprocal movement toward and away from the welding position whereby a transversely extending reinforcing rod positioned on the guiding surface of the mesh engaging member may be moved into the welding position adjacent the abutment surface of the mesh engaging member on movement of the positioning member toward the welding position, and a second transversely extending reinforcing rod is allowed to move onto the guiding surface of the mesh engaging member on movement of the positioning member away from the welding position, and means for positioning tranversely extending reinforcing rods onto the guiding surface of the mesh engaging member one at a time, means at the welding position operably associated with the supporting and feeding means for simultaneously welding a transversely extending reinforcing rod to the longitudinally extending reinforcing rods at the intersections of the longitudinally extending reinforcing rods and the transversely extending reinforcing rod, means operably associated with the welded transversely extending and longitudinally extending reinforcing rods for automatically indexing the welded reinforcing rods to position the longitudinally extending reinforcing rods for receipt of a subsequent transversely extending reinforcing rod at the welding position in parallel spaced apart relation to the welded transversely extending reinforcing rod, including the mesh engaging member and piston and cylinder means secured thereto for moving the mesh engaging member reciprocally in the direction of extent of the longitudinally extending reinforcing rods a distance equal to the desired spacing between the transversely extending reinforcing rods, means for supporting additional longitudinally extending reinforcing rods on the initial longitudinally extending reinforcing rods over a substantial portion of the length thereof, and means for moving the additional longitudinally extending reinforcing rods into the welding position after the initial longitudinally extending reinforcing rods have been indexed out of the welding position.

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