| 摘要 |
Wire feeding device comprises rollers (2, 3) for guiding a welding wire (1). One of the rollers is arranged in at least one group having at least three rollers. The first roller (2) forms a roller pair with at least two further rollers (3). Preferably the first roller is driven and further rollers are pressed against the first roller using the force of a spring. The further rollers are positioned with a tilting chute (5) which has an axle (8) for transferring a pressing force and is structured so that both further rollers act on the welding wire and the first roller with the same pressing force. |
