| 摘要 |
<p>A web fed rotary variable repeat cutter-creaser system is provided for the packaging industry which is to be fed from a web stock of material either printed or unprinted or both. This system consists basically of a pair of large diameter, very heavy walled drums on which can be mounted a pair of cutting and creasing dies. These dies are in the form of a sheet metal blanket into which the shape to be cut and creased have been chemically milled. The dies are mounted on these two drums so that as they rotate together, the dies will match one another in a registered position. A feeder is provided for the die cylinders which has the qualities of feeding a selected length of material, yet is continuously supplied from roll web stock of material. A crank working directly from the die cylinders wraps a storage integral of the web about a drum, then unwraps and advances it periodically. Swing rolls are oscillated by the crank arm and these are geared to a mechanism for advancing or retarding the fed portion of the web of material in accord with registration marks on the web stock.</p> |
