发明名称 Rotary tools for in-line perforation of profiled products
摘要 The present invention relates to a device comprising rotary cutting tools for combining cutting and shaping operations on metal sheets, the density of the cuts preferably being very high, said cutting operations preferably being integrated into an automated shaping line, characterised in that it comprises a first pair of rotary cutting tools (1, 2) producing a first set of cuts (7, 7', 7'') and a second pair of rotary cutting tools (3, 4) completing and finishing off the first cuts by a second set of cuts or by a fold (8) in order to obtain a final closed cut with the drop of cut waste or a puncture, respectively
申请公布号 US2004231385(A1) 申请公布日期 2004.11.25
申请号 US20040482168 申请日期 2004.06.30
申请人 KERGEN RICHARD 发明人 KERGEN RICHARD
分类号 B21D28/12;B21D28/24;B21D28/36;B26D1/143;(IPC1-7):B21D13/00 主分类号 B21D28/12
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