Wire feed system for manual welding torch - with drive wheel running on workpiece

摘要

Wire feed for manual welding torch e.g. TIG torch includes a drive wheel (4) which moves along the surface of the workpiece and a train of gear wheels (20, 19, 17) turned by the drive wheel to actuate a wire feed wheel (6). An adjustable intermediate plate (23) with slot (24) allows gearwheels to be interchanged to vary wire feed speed. ADVANTAGE - Precise torch and wire positioning.