Method for preparing the resumption of a spinning process

Abstract

A process and an arrangement are described for a spinning arrangement comprising an airjet aggregate relating to the preparation for re-starting the spinning process after an interruption of the spinning process. An end of an already spun thread is hereby fed back through the airjet aggregate in the opposite direction to the operational direction of motion to a thread storer. The end of the thread is cut off in the thread storer as waste, by means of which a new thread end is created, which is prepared for the re-starting of the spinning process. The point of separation is prepared by means of blowing compressed air thereon, and the end to be discharged as waste is subsequently separated from the thread by means of pulling the thread apart. The thread storer is preferably designed as a suction tube, to which a nipping line for temporarily holding the thread, and a compressed air nozzle for blowing air the thread are assigned.

1 - 9 . (canceled)  
   
   
       10 . A process for preparing for re-starting a spinning process after an interruption of the spinning process in a spinning arrangement including an airjet aggregate, comprising the steps of: 
 feeding an end of an already spun thread through the airjet aggregate in a direction opposite the operational direction of the spinning arrangement to a thread storer;    temporarily positioning the end of the already spun thread in the thread storer;    preparing the already spun thread for re-starting of the spinning process by removing as waste an end portion of the end of the already spun thread in the thread storer; and    transporting the end of the already spun thread from the thread storer in the operational direction of the spinning arrangement.    
   
   
       11 . A process according to  claim 10 , wherein the end portion of the already spun thread is prepared for separation at a point of separation by blowing compressed air thereon, and the end portion separated by pulling apart the thread.  
   
   
       12 . A process according to  claim 11 , wherein the end portion of the already spun thread pulled apart by being nipped while the thread is transported in the operation direction.  
   
   
       13 . A process according to  claim 11 , wherein the transporting of the thread is carried out by a delivery roller pair which takes part in the spinning process.  
   
   
       14 . An arrangement for re-starting a spinning process after an interruption of the spinning process, comprising: 
 an airjet aggregate;    a drafting unit arranged upstream of the airjet aggregate; and    a thread storer arranged upstream of the airjet aggregate,    wherein the thread storer comprises 
 a suction tube for temporary take-up of an end of a thread already fed into the airjet aggregate,  
 a nipping line assigned to the suction tube for temporarily holding the thread, and  
 a compressed air nozzle arranged to blow on the thread at a thread end portion separation point.  
   
   
   
       15 . The arrangement according to  claim 14 , wherein the suction tube is arranged to transport the thread away from the nipping line to a delivery roller pair after the thread has been blown on.  
   
   
       16 . The arrangement according to  claim 15 , wherein the delivery roller pair is the front roller pair of the drafting unit.  
   
   
       17 . The arrangement according to  claim 16 , wherein there is a predetermined distance between the compressed air nozzle is located at a predetermined distance from the front roller pair of the drafting unit.  
   
   
       18 . The arrangement according to  claim 14 , wherein the suction tube is a component part of a maintenance device assigned to a plurality of spinning arrangements.