WIRE FEEDER, WELDING EQUIPMENT AND WELDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a wire feeder which hardly gives rise to feeding unevenness and can maintain good wire feedability, a welding equipment which hardly gives rise to a welding defect in consumable electrode process arc welding and a welding method. SOLUTION: A rotary cylinder 40 is rotatably (loosely rotatably) fitted from an outer side to a stationary shaft 20 attached like a cantilever to a reel strut 10. The rotary cylinder 40 is attachably and detachably inserted from an inner side to a wire reel 50 wound with a wire 301 and attached to the stationary shaft 20 rotatably integrally together with the rotary cylinder 40. A spring back member 60 adds thrust force S, i.e., the pressing force in a thrust direction from a free end side toward a supporting end side to the rotary cylinder 40 and a bearing member 70 in contact with the rotary cylinder 40 is arranged in order to accept the thrust force S added by this spring back member 60.