发明名称 |
METHOD AND DEVICE FOR THERMOFORMING OF CONTAINERS |
摘要 |
The invention concerns a method which consists in heating flat thermoplastic blanks (12) and in carrying out a thermoforming step wherein the heated blanks are plastically deformed by stretching. Prior to the thermoforming step, it consists in performing a punching step wherein a peripheral region of the blanks is deformed by punching while the material of the blanks is trapped on the outside. The installation comprises means for heating (16) the blanks (12), thermoforming means (24), and a punching tool (26, 28) for deforming the peripheral regions of the blanks before they are thermoformed.
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申请公布号 |
WO03018294(A1) |
申请公布日期 |
2003.03.06 |
申请号 |
WO2002FR02405 |
申请日期 |
2002.07.09 |
申请人 |
ERCA FORMSEAL;MICHELON, BERNARD;SCHWAB, DOMINIQUE |
发明人 |
MICHELON, BERNARD;SCHWAB, DOMINIQUE |
分类号 |
B29C51/32;B29C43/00;B29C43/36;B29C49/00;B29C51/04;B29C51/08;B29C51/26;B29C51/30;B29C51/42;B29C69/02;B29L22/00;(IPC1-7):B29C51/08 |
主分类号 |
B29C51/32 |
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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