Punch removal device

Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 突き押し棒の先端部が打ち抜き片となる部分 に対して確実に固定されることになって、その打ち抜き 片を打ち抜き片除去下型の貫通孔を通して確実に除去す ることができる。 【解決手段】可撓性シート材料Ａに打ち抜き加工されて いる打ち抜き片となる部分ａをその可撓性シート材料Ａ から除去する打ち抜き片除去装置において、打ち抜き片 除去下型２１に設けられる貫通孔２２に対向して打ち抜 き片除去上型２０に付設される突き押し棒１は、打ち抜 き片除去上型２０に基部を定着される中空の莢軸２と、 この莢軸２の軸心に沿って上下動可能に挿入されて先端 ５’を鋭角に尖らせた突き棒５と、この突き棒５の後端 に連なり前記莢軸２内部に形成される空洞部４で外脱不 能に保持されて軸端部を前記莢軸２の基部端面から突出 する操作片７、およびこの操作片７を介して作用するコ イルバネ１０を備え、抜き落とし動作時に前記操作片７ の軸端部７ａを押して突き棒先端５’を打ち抜き片とな る部分ａに突き刺すようにさせる突き棒操作手段１５が 前記打ち抜き片除去上型２０の上部に併設されている。 PROBLEM TO BE SOLVED: To surely fix the tip of a push rod to a portion to be a punched piece, and to reliably remove the punched piece through a through hole of a punched piece removing lower die. can do. SOLUTION: A flexible sheet material A is formed by stamping a flexible sheet material A into a punched piece. In the punching piece removing device for removing from the punching tool, the pushing rod 1 attached to the punching piece removing upper mold 20 facing the through hole 22 provided in the punching piece removing lower mold 21 has a base portion formed by the punching piece removing upper mold 20. A hollow pod shaft 2 to be fixed, A thrust rod 5 which is inserted vertically movably along the axis of this pod shaft 2 and whose tip 5 ′ is sharpened at an acute angle, and a cavity formed inside the pod shaft 2 which is connected to the rear end of this thrust rod 5 An operating piece 7 which is irremovably held by the portion 4 and protrudes the shaft end from the base end face of the pod shaft 2; and a coil spring 10 acting through the operating piece 7, the operating piece being provided during the pull-out operation. 7 A pushing rod operating means 15 for pushing the tip end 5a of the pushing rod into the portion a to be a punching piece by pushing the shaft end portion 7a is provided in the upper part of the upper die 20 for removing the punching piece.

Inventors

• 👤 Jiyouji Ootsuka
• 👤 攘治 大塚

Bibliographic Details