| 摘要 |
Apparatus for cutting holes and notches in thermoplastic film by using heated steel rule dies. The dies are set into a heated die block, and scrap passes through the die, and through a hole in the heated die block so pieces of scrap fuse together as they pass through the block. The die block is fixed, and a movable platen urges the film down against the heated dies. A stripper is biased up to strip the film from the dies after cutting, and is resiliently movable down to allow cutting. Air can be directed through the stripper to blow the film up, off the stripper, to prevent melting when the film motion stops. Use of two dies accurately spaced can cut wicket holes and provide accurate cutting to assure proper operation in a bagging machine.
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