| 摘要 |
PROVIDED IS A METHOD FOR DETECTING A WIRE BREAK OF A WIRE SAW (2) WHICH HAS A WORK PROCESSING WIRE (3) WOUND AROUND A PLURALITY OF PROCESSING ROLLERS (8, 9) TO FORM A WIRE TRAIN AND WHICH ALLOWS THE PROCESSING ROLLERS (8, 9) TO ROTATE CAUSING THE RUNNING WIRE TRAIN AND A WORK (13) TO BE BROUGHT INTO CONTACT WITH EACH OTHER, THEREBY CUTTING THE WORK (13). IN THE METHOD, THE WIRE (3) CONSTITUTING PART OF THE TRAVEL ROUTE OF THE WIRE (3) IS ALLOWED TO RUN IN SUCH CLOSE PROXIMITY TO THE WIRE TRAIN AS TO INTERSECT THE SAME; THE WIRE PORTION RUNNING IN CLOSE PROXIMITY TO THE WIRE TRAIN IS EMPLOYED AS A BREAK DETECTION PORTION (3A); AND VARIATIONS SUCH AS IN BEHAVIOR OR CHANGES IN TENSION OF THE WIRE (3) IN THE BREAK DETECTION PORTION (3A) ARE DETECTED, THEREBY DETECTING A BREAK OF THE WIRE (3) HAVING OCCURRED IN THE WIRE TRAIN. (FIG. 1) |
