DEVICE AND METHOD FOR PUNCHING ELEMENT

摘要

An upper surface (30) of an ejector (3) has formed thereon a body-side upper surface part (31) and head-side upper surface part (32). The body-side upper surface part (31) has formed thereon a rising height surface (311) that is increasingly higher going toward one side (W1) in the horizontal direction. A device (1) for punching an element is configured so as to: lower a punch (4) and a pusher (5); press a flat plate member (70) toward a dice (2) with the pusher (5) and apply pressure to the flat plate member (70) with the punch (4) and the ejector (3); form, by the body-side upper surface part (31), a reduced-thickness part of increasingly smaller thickness going toward the one side (W1) in the horizontal direction on a lower surface (701) of the flat plate member (70); and thereafter punch out an element with the punch (4) and a punching blade (21).