公开(公告)号：US20050276669A1

公开(公告)日：2005-12-15

申请号：US10867245

申请日：2004-06-14

Applicant: Earl Pottorff

Inventor： Earl Pottorff

IPC: B23B39/00 ,  B26F1/16

CPC classification number: B26F1/16 ,  Y10T408/56245

Abstract: A spinning-head punch assembly has a crown-shaped cutting head that rotates at a high rate of speed, creating high quality holes in webs of plastic film or other materials. A rotary drive such as an electric motor is mounted on a reciprocating carriage above an apertured backing plate, and a pneumatic cylinder is actuated to thrust the cutting head toward the web. A spring biased clamp holds the web firmly around the die hole. In the first part of the punch cycle, the clamp closes down onto the web, and then the spinning cutting head contacts the web. The teeth on the web pierce the material so the punch cuts a clean hole, and does not pull or tear the material. Then on the second part of the punch cycle, the pneumatic cylinder lifts the cutting head away from the web material, and as the carriage reaches the top of its stroke the clamp releases the web so that it can advance to the next hole location.

Abstract translation: 旋转头冲头组件具有冠状切割头，其以高速度旋转，在塑料薄膜或其它材料的幅材上产生高质量的孔。 诸如电动机的旋转驱动器安装在有孔背板上方的往复式托架上，并且致动气动缸以将切割头推向卷筒纸。 弹簧偏压夹具牢固地将纤维网牢固地保持在模具孔周围。 在打孔循环的第一部分中，夹具关闭到卷筒纸上，然后旋转切割头与卷筒纸接触。 网上的牙齿刺穿材料，因此冲头切割一个干净的孔，并且不会拉动或撕裂材料。 然后在冲压循环的第二部分，气缸将切割头提升远离卷材，当滑架到达其行程的顶部时，夹具释放网，使其可以前进到下一个孔位置。