Winding and unwinding device and battery production system

A winding and unwinding device, comprising:

• a turret, wherein the turret comprises a rotation shaft and at least one winding shaft, and the rotation shaft is parallel to the winding shaft;
• a driver;
• and
• a magnetic powder clutch,
• wherein a drive shaft of the magnetic powder clutch is connected to the driver, and a driven shaft of the magnetic powder clutch is connected to the rotation shaft of the turret, such that the driver drives the rotation shaft of the turret to rotate, and
• wherein the turret further comprises a connection bracket connecting the at least one winding shaft to the rotation shaft, and the at least one winding shaft is rotatable with respect to the connection bracket;
• wherein the winding and unwinding device further comprises a controller, the controller is electrically or communicatively connected to the magnetic powder clutch, and configured to control excitation current input to the magnetic powder clutch;
• wherein the winding and unwinding device further comprises:
• a fixed disk fixed to the rotation shaft of the turret;
• and
• a stop member, the stop member being movable between a first position and a second position,
• wherein in the first position the stop member is engaged with the fixed disk to stop the fixed disk from rotating, so as to stop the rotation shaft of the turret from rotating;
• and in the second position, the stop member disengages from the fixed disk, to allow rotation of the fixed disk, so as to allow rotation of the rotation shaft of the turret.