Patent ID: 6418825
Filing Date: 2002-07-16
Classification: B65H,Y10T

Abstract:
A device for the transverse cutting of a paper web, comprising:a first continuously driven conveyor for moving the paper web at a first constant conveying speed into the device; a loop-forming station in the form of a loop for storing the paper web during a cutting operation; a clamping device arranged in a paper-running direction from the loop-forming station for intermittent clamping of the paper web; a second conveyor provided in the paper-running direction from the clamping device to move the paper web on after being stored by the loop-forming station at a second conveying speed greater than the first conveying speed, the second conveyor comprising a continuously driven transport roller and several pressure rollers for intermittently pressing on said transport roller; a lifting device for interpositioning of the paper web by lifting the pressure rollers; and a cutting device stationarily arranged in the paper-running direction from the second conveyor, wherein the clamping device and the lifting device are driven in step with the cutting device so that, for the duration of the cutting operation, the paper web is closed by the clamping device and the pressure rollers are lifted from the transport roller, wherein the transport roller of the second conveyor includes a surface coating of a rubber-elastic material, and the lifting device is controlled so that the pressure rollers are lifted off from the transport roller before the loop is undone and the paper web is tightened.