发明名称 Device for perforation of holes
摘要 A device for perforation of holes contains drums and punches located in the circle of drum. The device additionally contains an actuating mechanism in the form of a cam with pressure rollers; moreover cam profile is selected depending on the thickness of broken through metal.
申请公布号 UA33831(U) 申请公布日期 2008.07.10
申请号 UA20080003410U 申请日期 2008.03.17
申请人 ZAPORIZHIA NATIONAL TECHNICAL UNIVERSITY 发明人 IVANOV ANDRII VOLODYMYROVYCH;SHYROKOBOKOV VITALII VOLODYMYROVYCH
分类号 B21D28/24 主分类号 B21D28/24
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