| 摘要 |
PROBLEM TO BE SOLVED: To greatly reduce the manufacturing cost of a press die by using deep-drawn tubes as parts for press dies such as a spring case, spring guide pin, ejector case and scrap chute. SOLUTION: In the press die 1, the spring cases 23, 25 in which coil springs 21 for upward energizing a lifter plate 19 is housed, the spring guide pins 27 and the spring case 57 in which the coil spring 55 for downward energizing a preceding press pin 51 is housed are constituted of the deep-drawn tubes, made of stainless steel, with bottoms 23b, 25b, 27b having flanges 23a, 25a, 27a on the sides of the opening parts. In addition to them, the flanged deep- drawn tubes made of the stainless steel is used regarding the scrap chute and ejector case.
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