| 摘要 |
PURPOSE:To decrease the troubles of the disengagement of the yarn from the traveller, by using a motor rotatable at different speeds betwen the normal rotation and the reverse rotation as the motor for the vertical transfer of a ring rail in the restarting of a spinning frame, thereby lowering the lifting speed of the ring rail in restarting. CONSTITUTION:A motor used in the vertical transfer of the ring rail is capable of changing the rotational speed in two stages between the normal rotation and the reverse rotation, by changing the number of poles between 4 and 8. The vertical transfer of the ring rail is performed independent of the motion of the main motor by lifting the rail at a speed slower than that of the lowering motion. The rated output of the transfer motor can be decreased, and the capacity of the electromagnetic clutch can be lowered by this construction. |
