Clamping device for receiving and clamping film roll used in hot stamping machines, has output element of screw that cooperates with clamping levers which form clamping force to bottom of grooves and rest on inner wall of winding tube

摘要

The clamping device (1) has a winding tube (21) mounted with a film roll (22) and which comprises a grooved shaft (11) offset with equal angular spaced longitudinal grooves (11n) from a threaded ring (12d) and an adjusting nut which is offset at the same angle distance with a radially arranged clamping lever (16). An output element of the screw cooperates with the clamping levers, so that the clamping lever forms a clamping force to the bottom of the grooves of the grooved shaft and rests on the inner wall of the winding tube, in the clamping position of the clamping device.