Steel grid welder - has magnetic grid feed wheels

摘要

The rotating horizontal shaft mounted magnetic wheels engage the longitudinal bars of the grids by friction generated by the magnetic attraction. The bars are moved against vertically displaceable stops holding them up during the welding on of the lateral bars which subsequently provide the location surfaces for the stops. The magnetic wheels are continuously rotated. The system is mechanically extremely simple eliminating the need for carriage and complicated intermittent operation reversible drive mechanisms for these. It is used for concrete reinforcing grid welders.