| 摘要 |
PROBLEM TO BE SOLVED: To surely discharge a scrap blanked from a press die to outside. SOLUTION: By introducing a pressurized air between an upper plate 4 and a lower plate 6 and injecting the air on the glide face of a scrap chute from air injection holes 5..., scraps are prevented from sticking of a rust preventive oil coated on the upper plate, thus, these scraps are surely discharged.
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