| 摘要 |
PROBLEM TO BE SOLVED: To provide a die capable of correctly working with no escape of a punch when both sides of a work are punched even though the die is not rotated, in the die for punching an end part of the work. SOLUTION: Plural male blade parts 12a for punching are formed in the tip end of a punch 12 and a plate-like separator 12b is provided between these. The separator 12b is projected by (d) to the tip end side more than the male blades 12a and moreover projected by (s) to the side of the male blades 12a. Plural female blade parts 14a corresponding to each male blade 12a are formed in a die 13, and a dead space 14b for the separator into which the separator is advanced is formed between these female blade parts 14a. When punching is executed, since the separator 12b is advanced into the dead space 14b to control an escape of the punch 12, correct punching is executed.
|
