| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire material supply device capable of detecting that wire material supply is securely and normally performed without damaging a wire.SOLUTION: The wire material supply device is so configured that wire material feeding mechanism 3 that repeats feeding and stopping of a wire 50 and a pressure sensor 9 (noncontact sensor) that detects a movement of the wire 50 are provided, and, when a wire material feeding mechanism 3 is feeding out the wire 50 and when a predetermined width may not be obtained for a width of a change in detection value obtained by the pressure sensor 9, a control apparatus 2 determines that abnormality occurs in the feeding of the wire 50. |
