Patent ID: 7370564
Filing Date: 2008-05-13
Classification: B26D,B65H,Y10T

Abstract:
1. A cutting apparatus for cutting a moving web, the apparatus comprising: a moving web transporting roller disposed in a web transporting path for cooperation with a moving web and supported for rotation about a longitudinal axis, the moving web transporting roller having a surface for supporting a web thereon, the surface defined by an axially parallel generatrix, the transporting roller further having a groove which intersects the surface and runs in a longitudinal direction at an angle to the axially parallel generatrix of the moving web transporting roller; a cutting device having at least one cutter which is guided in the groove in the longitudinal direction of the groove, wherein a substantial portion of the cutting device is disposed outside of the transporting roller, and the cutter has a cutting portion that is aligned with and cooperates with the groove for cutting the web in a substantially axial direction; and means for controlling the movement of the cutter in dependence on a circumferential speed of the moving web transporting roller, wherein the groove extends from one axial end of the moving web transporting roller to the other axial end of the moving web transporting roller, and wherein the cutting device is supported such that it is movable parallel to the longitudinal axis of the transporting roller.