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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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