Cutting and folding device

摘要

In the case of the cutting and folding device, the drive is synchronised, on a cutter shaft (20) of a cutting device (31), with the drive of a machine, for example a packaging machine, arranged downstream, and a web (4) of film is drawn off a roll (1) by means of a shaft encoder (21) which is connected to the cutter shaft (20) and of an electronic control device (3) which has a ratio-calculating unit, by means of a feed roller (5) in dependence on the rotating speed of the cutter shaft (20). A drawing-off roller (15) which is arranged upstream of the cutting mechanism (31) is provided with a vacuum-operated coupling and braking assembly (18). <IMAGE>