| 摘要 |
<p>The invention relates to a spool spindle for a winding machine, comprising an outer jacket bushing (1) for receiving at least one spool sleeve (24). In order to fix the spool sleeve, a clamping device (16) is provided, which is arranged concentrically beneath the jacket bushing on the circumference of a drivable hollow spindle (2). For this purpose, the clamping device comprises a plurality of clamping bodies (18), which are guided in openings (19) of the jacket bushing and which can be moved radially by at least one axially displaceable ring piston (12) so as to tension or relax the spool sleeve (24), wherein the ring piston is arranged inside an annular space formed between the jacket bushing and the hollow spindle and is held in the tensioned position by a plurality of springs. In order to obtain the highest possible carrying capacity for a predefined outside diameter of the spool spindle, according to the invention each of the springs comprises a plurality of flat windings (25) that are oriented in the circumferential direction of the ring piston. In this way, the installation height of the clamping device can be minimized, even when using a plurality of springs.</p> |
