Method and device for operating a workstation of a cheese-producing textile machine

Abstract

The present invention relates to a method for operating a workstation of a cheese-producing textile machine, having a pivotably seated creel for rotatably maintaining a cheese, a bobbin drive arranged on the creel, a support roller, which during the winding operation is driven by the cheese by frictional contact, a separate yarn traversing arrangement, as well as a device for raising the creel in case of a yarn break or a defined cleaning cut. In accordance with the present invention it is provided that following a yarn break or a defined cleaning cut, the cheese, which is maintained in the creel and rotated in the unwinding direction by the bobbin drive, and the support roller are sufficiently spaced apart long enough for a suction nozzle to pick up a top yarn required for a subsequent yarn splicing process.

We claim:  
     
         1 . A method for operating a work station of a cheese-producing textile machine, wherein the work station comprises a pivotable creel for rotatably supporting a cheese for winding of a yarn thereabout, a drive associated with the creel, a support roller disposed for frictional driving by the cheese during winding of the yarn thereon, a separate yarn traversing arrangement, and a device for raising the creel upon a break or cutting of the yarn, the method comprising the steps of maintaining the cheese in the creel following a break or cutting of the yarn, rotating the cheese in an unwinding direction by the drive, suctioning a broken or cut end of the yarn from the cheese in preparation for a subsequent yarn splicing operation, and spacing apart the cheese and the support roller via the raising device for a sufficient time for the yarn suctioning to be completed.  
     
     
         2 . The method in accordance with  claim 1 , wherein, during the yarn suctioning, maintaining the creel raised to provide at least a minimum distance between the cheese and the support roller.  
     
     
         3 . The method in accordance with  claim 1 , wherein, during the yarn suctioning, maintaining the support roller lowered to provide at least a minimum distance between the cheese and the support roller.  
     
     
         4 . The method in accordance with  claim 1 , wherein, during the yarn suctioning, maintaining the creel clearly spaced apart from the support roller to allow a suction nozzle to optimally search for the yarn.  
     
     
         5 . A workstation device for producing textile cheeses comprising: 
 (a) a pivotable creel for rotatably supporting a cheese for winding of a yarn thereabout;    (b) a drive associated with the creel;    (c) a support roller disposed for frictional driving by the cheese during winding of the yarn thereon;    (d) a separate yarn traversing arrangement;    (e) a device for raising the creel upon a break or cutting of the yarn, said raising device having a torque sensor connected to a pivot shaft of the creel; and    (f) a drive element for controlling the torque sensor and the movement of the creel.    
     
     
         6 . The device in accordance with  claim 5 , wherein the drive element is a step motor.  
     
     
         7 . A workstation device for producing textile cheeses comprising: 
 (a) a pivotable creel for rotatably supporting a cheese for winding of a yarn thereabout;    (b) a drive associated with the creel;    (c) a support roller disposed for frictional driving by the cheese during winding of the yarn thereon;    (d) a separate yarn traversing arrangement;    (e) a device for raising the creel upon a break or cutting of the yarn, said device having a damping cylinder connected with the pivotable creel; and    (f) means for charging the damping cylinder comprising an electromagnetic valve controlled by a winding head computer.