Perforation anvil
    61.
    发明申请
    Perforation anvil 有权
    穿孔铁砧

    公开(公告)号:US20090235800A1

    公开(公告)日:2009-09-24

    申请号:US12077399

    申请日:2008-03-18

    IPC分类号: B26D7/20

    摘要: A method and apparatus for perforating a web includes an anvil roll having an outer surface wherein at least a portion of the outer surface defines an anvil surface. The anvil surface includes a plurality of angled grooves having a variable groove width. The method may include phasing the cutting position on the anvil to effect varying perforation patterns.

    摘要翻译: 用于穿孔网的方法和装置包括具有外表面的砧辊,其中外表面的至少一部分限定砧表面。 砧座表面包括具有可变凹槽宽度的多个成角度的凹槽。 该方法可以包括在砧座上定位切割位置以实现不同的穿孔图案。