发明名称 |
Method and device for the fabrication of plastic sleeves |
摘要 |
In the fabrication of a plastic sleeve by heat sealing overlapped ends of a plastic film blank wrapped around a mandrel, a part of the underlying overlapped end is often melted inadvertently and adheres to the mandrel, obstructing easy stripping of the sleeve off the mandrel. Accordingly, a tensioning groove is formed in the mandrel surface, and a pressing-in bar is pressed thereinto over the sleeve while a part of the sleeve is held stationary against the mandrel by a holding plate to pull the sleeve part thus adhering sidewise in the peripheral direction of the mandrel and thereby to peel away and free the same.
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申请公布号 |
US4718961(A) |
申请公布日期 |
1988.01.12 |
申请号 |
US19860857485 |
申请日期 |
1986.04.30 |
申请人 |
TOYO GARASU KABUSHIKI KAISHA |
发明人 |
YAMATO, YOSHIHIRO;TAKASAKA, MASAYUKI;SASAKI, TAKESHI;KISHIDA, MASATOSHI |
分类号 |
B65D23/08;B26D7/18;B29C31/00;B29C33/44;B29C53/42;B29C63/42;B29C65/00;B29C65/78;B29K105/02;B29L22/00;B31B3/28;B65B53/00;C03C17/32;(IPC1-7):B32B31/00 |
主分类号 |
B65D23/08 |
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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