| 摘要 |
A longitudinally movable chuck for winding cores onto which web-like material, such as paper etc., is wound is longitudinally movable by means of a motorized drive. The chuck includes a clamping core which grips into the winding core. The end face of the winding core is supported against a stop of the clamping core. The clamping core is longitudinally movable on a central part of the chuck. Between the central part and the clamping core a compression spring is located for exerting an axially acting clamping force on the winding core. The central part is provided with a switch which is actuable by the longitudinally shifted clamping core. The switch acts on the motorized drive to achieve a relatively precisely adjustable clamping force. |
