| 摘要 |
<p>As it is intermittently supplied, a blank wire (W) having a generally Y-shape cross section is cut into slices of a predetermined thickness by a cutting punch (10), which is fixed to the frame, and a coacting cutting die (2), which is reciprocatingly movable in the cutting direction. Then a bulge is formed on the head portion of the cut coupling element by a bulge formign die, which is connected with a forward end in stroke direction of the cutting die (2), and a coacting bulge forming punch (8), which is movable upwardly and downwardly. The cutting punch (2) is equipped with preventing means (11) on the upper side of the end of a blade (10a) for preventing the cut coupling element from jumping up from the blade (10a) during the cutting, so that a bulge can be formed on the head portion reliably, without giving any damage to peripheral equipments. <IMAGE></p> |
