B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 35/08 (2006.01) B26D 7/26 (2006.01) B65H 20/02 (2006.01) B65H 45/16 (2006.01)
Patent
CA 2181752
The invention concerns a device for processing a web of material entering into afolding unit prior to severing single products from said web of material. The folding unit has a processing unit with two cooperating cylinders. The cylinders are supported by housings mounted in a frame of the folding unit. A device for changing the effective diameter as well as the center to center distance between said cooperating cylinders upon changes of cut-off length, allows for obtaining a match of the circumferential motion of said cylinder to secure a clean perforation position without any gain.
Breton Richard E.
Whitten David E.
Wingate Mark A.
Dennison Associates
Heidelberger Druckmaschinen Ag
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