Thread-splicing device for a workstation of a textile machine producing cross-wound bobbins

Abstract

A thread-splicing device for a workstation of a textile machine that produces cross-wound bobbins and has a splicing prism with a splicing channel to which pneumatic pressure can be applied, as well as thread-guiding plates arranged on both sides of the splicing channel, and which is equipped with thread-locking means. At least one interfering element is positioned on both sides of the splicing prism in a region between the thread-guiding plates and a thread-locking means in such a way that the thread ends to be spliced contact the interfering element during the splicing process.

1 . A thread-splicing device for a workstation of a textile machine that produces cross-wound bobbins, the thread-splicing device comprising:
 a splicing prism with a splicing channel to which pneumatic pressure can be applied;   thread-guiding plates arranged on both sides of the splicing channel and which is equipped with thread-locking means; and   at least one interference element positioned on both sides of the splicing prism in a region between the thread-guiding plates and the thread-locking means in such a way that thread ends to be spliced contact the at least one interference element during splicing process.   
     
     
         2 . The thread splicing device according to  claim 1 , wherein the at least one interference element is always arranged on a larger of the thread-guiding plates. 
     
     
         3 . The thread splicing device according to  claim 1 , wherein the at least one interference element is designed and arranged such that a thread contact surface of the at least one interference element runs at a right angle to a side wall of the splicing prism. 
     
     
         4 . The thread splicing device according to  claim 1 , wherein the at least one interference element has a wall element that is equipped with a thread contact surface and is arranged at an angle α with respect to a side wall of the splicing prism. 
     
     
         5 . The thread splicing device according to  claim 1 , wherein the at least one interference element has multiple wall elements each equipped with a thread contact surface. 
     
     
         6 . The thread splicing device according to  claim 1 , wherein the at least one interference element is made of an abrasion-resistant material. 
     
     
         7 . The thread splicing device according to  claim 6 , wherein the at least one interference element is made of a ceramic material. 
     
     
         8 . The thread splicing device according to  claim 6 , wherein the at least one interference element is made of a high-strength metallic material. 
     
     
         9 . The thread splicing device according to  claim 1 , wherein the at least one interference element is replaceably fastened to the splicing prism. 
     
     
         10 . The thread splicing device according to  claim 9 , wherein the at least one interference element is fastened to the splicing prism by a screw connection. 
     
     
         11 . The thread splicing device according to  claim 1 , wherein the at least one interference element is fastened to the splicing prism by an adhesive connection. 
     
     
         12 . The thread splicing device according to  claim 3 , wherein the thread contact surface of the at least one interference element runs straight in a region of contact of the thread ends. 
     
     
         13 . The thread splicing device according to  claim 3 , wherein the thread contact surface of the at least one interference element has a bulge in a region of contact of the thread ends. 
     
     
         14 . The thread splicing device according to  claim 1 , wherein the thread splicing device, apart from a splicing prism equipped with the at least one interference element, has additional devices equipped with the thread-locking means, an attachment plate equipped with the thread-locking means or a thread brake element.