发明名称 |
Apparatus for continuous vacuum forming between a pair of rotating belts |
摘要 |
The present invention relates to an apparatus for continuous vacuum forming of a thermoplastic material between a pair of rotating flexible belts in which one belt includes a plurality of teeth, which are received in a plurality of indentations of the other belt. Each of the belts includes a mold, which forms a channel when the belts are adjacent to one another. A vacuum is applied to at least one of the flexible belts for drawing material received in the channel and alignment of the belts. Preferably, a vacuum can be applied to both of the belts for improved alignment. Each belt can include a plurality of apertures, which are in fluid flow communication with a plurality of perforations of a flat support belt positioned over a vacuum manifold.
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申请公布号 |
US2003080475(A1) |
申请公布日期 |
2003.05.01 |
申请号 |
US20010021484 |
申请日期 |
2001.10.29 |
申请人 |
BOSLER KENNETH;BOSLER ROBERT;BOSLER RALPH |
发明人 |
BOSLER KENNETH;BOSLER ROBERT;BOSLER RALPH |
分类号 |
B29C49/38;B29C49/40;(IPC1-7):B29C43/22 |
主分类号 |
B29C49/38 |
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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