| 摘要 |
PURPOSE:To prevent excessive abrasion of the ring shape groove part of processing rollers and also guide rollers by moving the position of the guide rollers in accordance with the length of processing the work. CONSTITUTION:A pair of guide rollers 21A, which are for guiding both ends of a wire 5 wound around a processing roller 4, are arranged along the outside circumference surface of the processing roller 4 in a movable manner in the longitudinal direction. In order to move respective guide rollers 21A to the positions facing the specified ring shape grooves 4a on the processing rollers 3, 4, a guidance mechanism 38 is arranged in linkage with the guide rollers 21A. |
