Combination web cutting and path switching system

Details Combination web cutting and path switching system Combination web cutting and path switching system

B - Operations, Transporting

65

H

164/112

B65H 29/58 (2006.01) B26D 1/40 (2006.01) B65H 29/60 (2006.01) B65H 35/08 (2006.01)

Patent

CA 1306184

ABSTRACT OF THE DISCLOSURE. A cutter cylinder - counter cylinder combination pair (5, 6) has cutter knives (13, 14) and counter elements (15, 16) thereon, respectively,preferably, located diametrically opposite each other. A cutter knife (14) on one cylinder (6) cooperates with a counter element (15) on the other cylinder (5). In addition to the cutter knife and counter elements, the cylinders carry deflection elements which are positioned relative to the direction of rotation of the cylinders in advance of the cutter knife for deflection of the web (2) into one of two selected paths (18, 19; 20, 21). The deflection elements include a longer and comparatively stiff, elastic blade (11) on one cylinder and a short, and highly flexible blade (10) on the other cylinder. The two blades grip the web (2) between themselves and, upon rotation of the cylinders, the stiffer, longer blade deflects the edge (26) of the web into the given path, permitting the shorter, resilient blade to flex. After the sheet is deflected into the respective path, and for example after having been gripped by the path transport system, for example belts, it is cut by the cutter knife engaging the cooperating cutter element of the cylinders upon continued rotation, the deflection elements gripping, anew, the web just behind the cut edge.

570027

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