B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1076
B29C 51/44 (2006.01) B26D 5/22 (2006.01) B26D 7/06 (2006.01)
Patent
CA 1171626
TRIM PRESS WITH OSCILLATING CANOPY SHEET FEED ABSTRACT OF THE INVENTION An oscillating canopy is employed in the feeding of an elongate sheet of synthetic plastic material having articles, such as cups, for example, formed in the sheet, to a die which trims the articles from the sheet. The canopy has a downwardly concave curved upper portion upon which the sheet is supported by a series of rollers. The canopy is driven in forward and return strokes in pivotal movement about an axis located at a radial distance from the curved upper portion which is a greater distance from the discharge end of the curved upper portion than from the sheet receiving end so that tension is maintained on the sheet during the feeding stroke. The sheet-supporting rollers are mounted for rotation in one direction only, this direction being that in which the rollers can roll relative to the sheet on the return stroke of the canopy.
375608
Arends Albert W.
Pickard George L.
West George A.
Leesona Corporation
Ridout & Maybee Llp
LandOfFree
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