Abstract: A machine for manufacturing a reinforcing body for a concrete part, the reinforcing body including longitudinal rods and wires wound over and welded to the rods. The machine includes an axially stationary main wheel and an axially mobile support wheel mounted coaxially and drivable synchronously with the main wheel. Adjustable guide pieces are carried by the main wheel for supporting the longitudinal rods to be welded. A first servomechanism is connected to the guide pieces for producing a common uniform adjustment of the guide pieces. A welding carriage is movable transversely to the machine longitudinal direction. A second servomechanism synchronized with the first servomechanism moves the welding carriage in synchronism with the adjustment of the guide pieces and the rods and wire consecutively during rotary movement of the main wheel.

Abstract: A machine for the manufacture of reinforcing bodies for concrete pipes and the like, which comprises longitudinal bars and wire wound about the longitudinal bars. Two coaxial discs are provided. A main disc, fixedly mounted on a base frame, carries radially displaceable guide pieces for the longitudinal bars. A support disc, mounted on a carriage movable in the direction of the axis of the main disc, carries a clamping device for clamping the ends of the longitudinal bars at a selectively different spacing from the axis of the disc. The clamping device comprises elongate clamping members which constitute radially extending clamping slits. The clamping slits open and close in parallel over their entire length. The length and position of the clamping members correspond to the range of adjustment of the guide pieces on the main disc.

Abstract: A machine for the manufacture of reinforcing bodies for concrete pipes and the like, which comprises longitudinal bars and wire wound about the longitudinal bars. Two coaxial, synchronously driven discs are provided. A first disc carries radially displaceable guide pieces as a welding rest for the longitudinal bars. A welding device is mounted on a transversely moveable welding carriage and makes welds successively on the longitudinal bars. The guide pieces and the welding device are adjustable automatically and continuously over the total radial stroke given with a first disc of specific diameter. Traction lines guided by rollers in the longitudinal direction engage the guide pieces. An axially directed hydraulic cylinder drives the traction lines and a transversely directed hydraulic cylinder, synchronized with the axially directed cylinder, drives the welding carriage. It is consequently possible to produce in succession reinforcing bodies of selected diameters without loss of time for changeover.