| 摘要 |
PROBLEM TO BE SOLVED: To improve the versatility of a die in a die changing device, by broadening a distance between blades, keeping a pass line constant, facilitating the change of a die length and firmly fixing the die. SOLUTION: A die holder 7 having grooves 10, 11 or an engaging protrusion 12 is provided movably on at least either a ram front or a ram rear. A die P1 having the engaging protrusion 12 or grooves 10, 11 are provided attachably/ detachably to the die holder 7, allowing the die holder 7 to be engaged with and disengaged from the ram 20. COPYRIGHT: (C)2003,JPO
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