| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a welding wire feeding device 31 which has no need of regulating the pressurizing force of a welding wire 11 in a wire straightening part 32 in accordance with the remaining amount of the welding wire 11 of a wire reel 23. <P>SOLUTION: In the welding wire feeding device 31, the welding wire 11 inserted into the wire straightening part 32 is abutted on the lower part of the first and second fixed rolls 37, 38. An arm 33 formed into a U shape is rotatably supported by a wire straightening part body 34, a wire insertion roll 35 is supported to one edge part thereof, and a movable roll 36 is supported to the other edge part thereof. When the wire insertion roll 35 is pushed up by the welding wire 11, by the rotation of the arm 33, the movable roll 36 is pushed up to push up the welding wire 11 between the first and second fixed rolls 37, 38. As a result, there is no phenomenon that the welding wire 11 of the wire reel 23 is consumed and the pressurizing force of the movable roll 36 is made insufficient. <P>COPYRIGHT: (C)2013,JPO&INPIT |
