发明名称 |
MOLDING METHOD AND SUPPORT SYSTEM FOR THERMOFORMABLE MATERIAL SHEET |
摘要 |
A method and apparatus for molding thermoformable sheet material is set forth. The method includes the steps of providing a conventional stamp type mold, one section of which provides a compliant mold member which is augmented by diaphragm. The diaphragm coacts with the compliant member during a molding phase to ensure dimensional uniformity in the molded article. Further, tight or detailed areas are easily molded by making use of the compliant and diaphragm members. In a further embodiment, tension adjusting is achieved during molding by a series of discrete tension members. The tension members cooperate with the compliant and diaphragm members to significantly improve dimensional uniformity and prevent wrinkling in the molded article. |
申请公布号 |
WO03061930(A2) |
申请公布日期 |
2003.07.31 |
申请号 |
WO2003CA00051 |
申请日期 |
2003.01.17 |
申请人 |
NATIONAL RESEARCH COUNCIL OF CANADA |
发明人 |
LEBRUN, GILBERT;GAGNON, PATRICK;YOUSSEF, YOUNES |
分类号 |
B29C35/02;B29C51/04;B29C51/08;B29C51/26;B29C51/28;B29C51/42;B29C51/44;B29C70/44;B29C70/56 |
主分类号 |
B29C35/02 |
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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