发明名称 METHOD AND APPARATUS FOR PRODUCING BAGS
摘要 Disclosed is the method and apparatus for producing thermoplastic bags from an elongate web. Apparatus for feeding the web includes devices for producing mounting holes and perforations along a circular path surrounding the holes. The web is severed and sealed to produce sheets containing a mounting hole encircled by the perforations. A selected number of successive sheets are impaled on a post projecting through the holes. A stack having a selected number of sheets is accumulated on a post fixed to a support supporting a medial zone of the sheets which are combined by a heated punch penetrating the sheets in the area enclosed by the perforations.
申请公布号 CA1261663(A) 申请公布日期 1989.09.26
申请号 CA19860521730 申请日期 1986.10.29
申请人 FMC CORPORATION 发明人 LAMBRECHT, EMIEL
分类号 B65D30/10;B31B1/60;B31B1/98;B31B19/98;B31B23/60;(IPC1-7):B31B11/00 主分类号 B65D30/10
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