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1. 发明授权

US5427294A Method and apparatus for breaking film perforations 失效
标题翻译：打破薄膜穿孔的方法和装置
公开(公告)号：US5427294A
公开(公告)日：1995-06-27
申请号：US150949
申请日：1993-11-12
申请人： Greg J. VandenHeuvel , Christopher E. Dubey
发明人： Greg J. VandenHeuvel , Christopher E. Dubey
IPC分类号： B31B19/14 , B31B19/96 , B65H35/10
CPC分类号： B65H35/10 , B31B19/96 , B31B2219/14 , B31B2219/922 , B65H2513/104 , Y10T225/16 , Y10T225/35
摘要： A method for breaking film perforations between a plurality of adjacent films employs an in-feed device, an out-feed device, and a festooner positioned between the in-feed device and the out-feed device. The in-feed device and the out-feed device move the plurality of adjacent films downstream through the festooner, which includes a plurality of rollers extending from a rotatable hub shaft. To perform the method, the hub shaft is first rotated to a home position. Next, a first film is fed through the festooner and into the out-feed device using the in-feed device. The out-feed device moves film downstream at a slower speed than the in-feed device. The hub shaft is then rotated at a high boost speed so that the rollers take up slack in the first film generated by the slower speed of the out-feed device relative to the in-feed device. Finally, while the perforations between the first film and an upstream adjacent second film are located between the in-feed device and the festooner, the hub shaft is rotated at a slow speed relative to the high boost speed so as to controllably break the perforations.
摘要翻译：用于破坏多个相邻薄膜之间的薄膜穿孔的方法采用位于进料装置和出料装置之间的进料装置，出料装置和花洒。进给装置和出料装置将多个相邻的膜移动通过花洒，其包括从可旋转轮毂轴延伸的多个辊。为了执行该方法，轮毂轴首先旋转到原始位置。接下来，使用进给装置将第一膜馈送通过花洒并进入出料装置。出料装置以比进给装置慢的速度将膜向下游移动。然后，轮毂轴以高增压速度旋转，使得辊相对于进给装置，通过出料装置的较慢速度产生的第一膜中松弛。最后，当第一膜和上游相邻的第二膜之间的穿孔位于进给装置和花洒之间时，轮毂轴以相对于高增压速度的低速旋转，以便可控制地打破穿孔。

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