| 摘要 |
PURPOSE:To accurately and easily change the width of a die by simple operation in a short time, by properly selecting the number of reference dies provided on both sides of a segmental die according to the width of work. CONSTITUTION:A top die pushing and to fixing the work W is composed of plural segmental dies 55, hollow dies 57 and reference dies 59 disposed on its both sides. The reference dies 59 are provided each ten on right and left sides, and by lock and unlock means 67, prescribed numbers of dies are provided lockably on 1st rods 63R, 63L. When the work width is changed, the proper number of reference dies 59 is selected, locked by the lock and unlock means 67, then operating the cylinder 87, 2nd rods 73L, 73R are moved to the center and as the prescribed number of the base dies 59 is abutted on the hollow dies 57, the width of the die is accurately changed by the simple operation in a short time.
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