发明名称 DEVICE AND METHOD FOR PUNCHING ELEMENT
摘要 An upper surface 30 of an ejector 3 has a body portion-side upper surface portion 31 and a head portion-side upper surface portion 32, and the body portion-side upper surface portion 31 has a raised surface 311 that is tilted upward toward one side W1 in the lateral direction. An element blanking apparatus 1 moves a punch 4 and a pusher 5 downward to press a flat plate-like material 70 against a die 2 by the pusher 5, and presses the flat plate-like material 70 by the punch 4 and the ejector 3 to form a reduced thickness portion in a lower surface 701 of the flat plate-like material 70 by the body portion-side upper surface portion 31 so that the thickness of the reduced thickness portion gradually decreases toward the one side W1 in the lateral direction. The element blanking apparatus 1 then blanks an element by the punch 4 and a blanking blade 21.
申请公布号 EP2783771(A4) 申请公布日期 2015.08.12
申请号 EP20120868369 申请日期 2012.02.13
申请人 AISIN AW CO., LTD.;CVTEC CO., LTD. 发明人 KAKIUCHI, MIYOSHI;FUJIMOTO, KOJI;SATO, YOSHIAKI;NAKAJIMA, MASAKI
分类号 B21D53/14 主分类号 B21D53/14
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