| 摘要 |
An apparatus for driving winding devices, such as bobbins and their associated thread guide changers at constant proportional speeds, particularly fiber and thread winders, comprises a drive motor which has a rotatable shaft with an armature winding and a commutator connected to said armature winding for direct current connection from a DC supply to the armature, and which also includes a plurality of slip rings connected to the armature so that a symmetrical polyphase alternating current voltage is applied to the rings during the operation of the motor. The motor shaft is adapted to be connected either to a friction roller for surface driving of a bobbin or directly to a bobbin shaft for rotating the bobbin shaft. A synchronous motor having a rotatable shaft is connected to rotate a thread guide or traverse system and it is powered by power supplied from the slip rings to the synchronous motor. During operation of the drive motor, the slip rings deliver AC voltage at a frequency which is directly proportional to the mechanical rotational speed of the drive motor shaft so that the traverse system is driven at a speed constantly proportional to the speed of rotation of the drive motor shaft. The method involves the use of a modified DC motor connected to supply an AC voltage at slip rings thereon during its operation and comprises rotating the motor to drive a winding shaft and connecting the slip rings of the motor to supply an output voltage to a synchronous motor to drive a second shaft at a constant proportional speed to the winding shaft. |
