Patent ID: 8375762
Filing Date: 2013-02-19
Classification: B21D

Abstract:
1. A stripper device for a can drawing and ironing apparatus, comprising: a plurality of finger sections that abut against an opening end portion of a can material that is stretched over a punch and detach the can material from the punch; and a drive unit that opens or closes each finger section, wherein the finger section is composed of a plurality of small fingers and each small finger is configured to be capable of elastically moving in an axial direction of the punch, wherein the drive unit is formed of a plurality of rocking arms each having a rocking fulcrum corresponding to each finger section and a rotatable cam ring that has cam portions that engage with the rocking arms, and wherein the rocking arms are biased in advance by a first elastic member in a direction of opening the small fingers, and the small fingers are biased in advance by a second elastic member in a closing direction.