| 摘要 |
PROBLEM TO BE SOLVED: To perform the half-cut working and the bore working of a sheet member without deteriorating working accuracy with one die. SOLUTION: The combination die for pressing consists of a top die 2 and a bottom die 3. The top die 2 is equipped with a cutting blade plate 6 in which a cutting blade 61 for half-cutting is formed after the fashion of a product shape and an extraction bore 62 has made to penetrate along the shape of the cutting blade 61 for the half-cutting inside the cutting blade 61 for the half-cutting, a shedder 7 which is arranged in the slidable manner in the pressing stroke direction within the extraction bore of the cutting blade plate 6 and in which a punch 52 built into the top die 2 has made to penetrate the slidable punch bore 7a, a compression coil spring 51 which repels the shedder 7 in the bottom die direction, and a stripper bolt 71 which limits a moving distance in the bottom die direction of the shedder 7. The bottom die 3 is provided with a die bore 8a into which the blade section 52b of the punch 52 is entered. COPYRIGHT: (C)2009,JPO&INPIT
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