| 摘要 |
<p>PURPOSE:To improve stamping operations by a method in which a group of steel pieces is orderly stamped from each end to the center side by two stampers,a nd when the steel piece on the central side is stamped, one of the stampers is retracted. CONSTITUTION:A group of steel pieces 5 is stamped in order from both ends to the center by stampers 7 and 8. When stamping on the fourth steel piece end is ended from the end side by the stampers 7 and 8, the stamper 7 is returned to home position by a quick-feeding air cylinder for avoiding the interference of both stampers, and remaining steel pieces 5 are stamped by the stamper 8. As the steel pieces 5 on both sides are allowed to cool, the end faces of the pieces 5 are greatly displaced toward outside. Since stamping, however, is made in order from end side to the center side, there is no great deviation between the end position detected by a steel piece end detector 9 and the actual end position of steel piece. The stamping operations can thus be well made.</p> |
