| 摘要 |
The invention relates to a clamping device (1) for receiving and clamping a film roll (2) comprising a winding sleeve (21) and a wound film (22) arranged on the winding sleeve (21). The clamping device (1) can be adjusted from an open position, in which the film roll (2) can be inserted into or removed from the clamping device (1), into a clamping position, in which the film roll (2) is clamped in the clamping device (1). The clamping device (1) comprises a grooved shaft (11) with receiving grooves (11n) which are arranged in the longitudinal direction in an offset manner with equal angular spacing between one another; a helical gearing made of a threaded ring (12) and an adjusting nut (14); and clamping levers (16) arranged radially in an offset manner with equal angular spacing between one another. An output element of the helical gearing interacts with the clamping levers (16) such that the clamping levers (16) rest on the base of the grooves (11n) of the grooved shaft (11) and on the inner wall of the winding sleeve (21) in the clamping position of the clamping device (1), thereby generating a clamping force. |
