Apparatus for the production of chenille

Abstract

Apparatus for producing yarn chenille (F) characterized in that it comprises: a chenille yarn-forming unit, the chenille yarn formed within said unit is made up of two interweaving threads, a plurality of fuzzy thread lengths and one thermoforming thread being fed along with the interweaving threads; a unit for heating the yarn exiting from said forming unit; a unit for twisting and driving the yarn exiting from said heating unit; a spooling unit, that is, a unit for causing the yarn exiting from said twisting unit to be collected on reels; and in that the yarn-heating unit is located downstream of the forming unit and upstream of the spooling unit.

1 ) apparatus for producing yarn chenille (f) characterized in that it comprises: 
 a chenille yarn-forming unit, the chenille yarn formed within said unit being made up of two interweaving threads, a plurality of fuzzy-thread lengths and a thermoforming thread being fed along with the interweaving threads;    a unit for heating the yarn exiting from said forming unit;    a unit for twisting and driving the yarn exiting from said heating unit;    a spooling unit, that is, a unit for causing the yarn exiting from said twisting unit to be collected on reels; and in that the yarn-heating unit is downstream of the forming unit and upstream of the spooling unit.    
     
     
         2 ) Apparatus according to  claim 1 , characterized in that it comprises a unit for twisting and driving the yarn exiting from said heating unit: the said twisting and driving unit being located downstream of the heating unit and upstream of the spooling unit.  
     
     
         3 ) Apparatus according to one or more preceding claims, characterized in that the said heating unit comprises at least one tubular chamber ( 6 ) delimited by a metal tubular body ( 60 ) in the inside of which a tubular thermoinsulating body ( 61 ) is located: the said chamber being connected to corresponding means ( 68 ) able to produce a flow of hot air to be introduced into the same chamber ( 6 ).  
     
     
         4 ) Apparatus according to claims  1  and  4 , characterized in that the said chamber ( 6 ) is provided with holes ( 660 ) in correspondence of its upper and lower bases ( 62 ,  63 ) to allow venting the hot air to the outside.  
     
     
         5 ) Apparatus according to claims  1  and  4 , characterized in that one or more mouths are positioned in correspondence of said holes ( 660 ) for aspirating the air on output from the same holes.  
     
     
         6 ) Apparatus according to claims  1  and  2 , characterized in that the said twisting and driving unit comprises at least one head for twisting the thread (F) on output from the heating unit and comprising a twisting head ( 7 ) with a hollow shaft ( 70 ) which the thread (F) goes through longitudinally, and with a dish ( 71 ) fixed to the lower end of the shaft ( 70 ) from which the thread (F) comes out eccentrically.  
     
     
         7 ) Apparatus according to claims  1  and  2 , characterized in that the said twisting and driving unit comprises at least one pair of rollers ( 8 ,  8 ′) whose surfaces engage the thread (F) and which are oriented orthogonally to the thread-driving direction.  
     
     
         8 ) Apparatus according to  claim 1 , characterized in that the said spooling unit comprises at least one roller ( 90 ) with a groove ( 91 ) for guiding the thread (F).