发明名称 |
Heat laminating a cover foil to a base foil |
摘要 |
A base sheet is spanned over a lower roller, and an upper roller pulls a cover sheet along a path and presses it against the base sheet at the lower roller. A preheater housing along the path upstream of the rollers is formed with a chamber open toward the path. A radiant heater in the chamber is directed transversely at the path so as to heat the cover sheet passing along the path. A sensor along the path adjacent the chamber detects atmosphere around the chamber and generates an output when the detected atmosphere indicates an unsafe hot condition of the cover sheet. A shutter can shift between a retracted position offset from the chamber and an advanced position closing the chamber. A controller connected to the sensor shifts the shutter from the retracted position to the advanced position when the output is generated by the sensor. |
申请公布号 |
US2006049173(A1) |
申请公布日期 |
2006.03.09 |
申请号 |
US20050218989 |
申请日期 |
2005.09.02 |
申请人 |
UHLMANN PAC-SYSTEME GMBH & CO. KG |
发明人 |
GERTITSCHKE DETLEV;ZOLLER BERND;KNUPPEL JORG |
分类号 |
H05B3/34;H05B3/54 |
主分类号 |
H05B3/34 |
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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