Loom provided with a cooling system

Abstract

A Jacquard loom is provided with thread ( 14 ) guide means ( 12, 13 ) and with a cooling system ( 15 ) of the guide means ( 12, 13 ) and of the threads ( 14 ) near the guide means ( 12, 13 ). Said cooling system ( 15 ) comprises: at least one distribution pipe ( 21 ) of the cooling air arranged along the guide means ( 12, 13 ) and near the threads ( 14 ), said at least one distribution pipe being provided with holes ( 22 ) on the side wall to deliver air to the threads ( 14 ) and the guide means ( 12, 13 ); and a fan for blowing ( 17 ) cooling air inside said distribution pipe ( 21 ).

1 . Jacquard loom provided with thread guide means and with a cooling system of the guide means and of the threads near the guides means, said cooling system comprising: 
 at least one distribution pipe of the cooling air arranged along the guide means and near the threads, said at least one distribution pipe being provided with holes on the side wall to deliver air to the threads and to the guide means; and    a fan for blowing cooling air inside said distribution pipe.    
   
   
       2 . Loom according to  claim 1 , characterized in that said guide means comprises a threading guide board and a loom bottom guide board, each one of which is provided with its own air distribution pipe the two distribution pipes extending laterally from a supply conduit originating from the fan and being closed at the opposite end.  
   
   
       3 . Loom according to  claim 2 , characterized in that each of said two distribution pipes is brought up to a longer corner of the corresponding board with the holes turned towards the threads on the board, to cover the threads with an air flow that is substantially parallel to a face of the board.  
   
   
       4 . Loom according to  claim 1 , characterized in that the fan is a tangential centrifugal fan.  
   
   
       5 . Loom according to  claim 1 , characterized in that the fan is provided with an inlet filter for the purification of the cooling air.  
   
   
       6 . Loom according to  claim 2 , characterized in that said supply conduit is an at least partially flexible pipe.  
   
   
       7 . Loom according to  claim 1 , characterized in that at least one distribution pipe is rectilinear and that said holes are arranged aligned parallel to an axis of the distribution pipe.  
   
   
       8 . Loom according to  claim 7 , characterized in that the holes of a distribution pipe are equidistant to one another to form a sequence of holes open for a length of the pipe such as to cover the entire extent of the guide means.  
   
   
       9 . Loom according to  claim 1 , characterized in that the distribution pipe is formed of modular segments.  
   
   
       10 . Loom according to  claim 1 , characterized in that the distribution pipe is fixed to a support in such a way as to be axially rotatable for the regulation of the direction of the delivery air.  
   
   
       11 . Loom according to  claim 10 , characterized in that the support comprises shelves with which the distribution pipe is connected by means of U-bolts that grasp its circumference to enable said rotation to loosen the U-bolts.  
   
   
       12 . Loom according to  claim 1 , characterized in that the sections of the distribution pipe and of the supply conduit are greater than 110 cm 2 , preferably comprised between 200 and 700 cm 2.    
   
   
       13 . Loom according to  claim 12 , characterized in that the holes have a section comprised between 0.75 cm 2  and 7 cm 2 .