Loom for producing paper machine clothing

Abstract

A loom for producing a paper machine clothing includes a weaving zone for producing a woven structure having warp threads and weft threads and a tensioning zone following the weave zone in a weaving direction. The tensioning zone has a first receiving roller system and a second receiving roller system following the first receiving roller system in a weaving direction. Each receiving roller system is configured to move the woven structure forward in the weaving direction in order to produce a tension. A heating assembly for thermofixing the woven structure is provided between the first receiving roller system and the second receiving roller system.

What is claimed is: 
     
         1 . A loom for producing a paper machine clothing, the loom comprising:
 a weaving zone for producing a woven structure having a plurality of each of warp threads and weft threads;   a tension zone subsequent to said weaving zone when viewed in a weaving direction, said tension zone including:
 a first take-up roller system; and 
 a second take-up roller system subsequent to said first take-up roller system viewed in said weaving direction, each of said first take-up roller system and said second take-up roller system being configured to move the woven structure to produce a tension in said weaving direction; and 
   a heating arrangement for thermosetting the woven structure between said first take-up roller system and said second take-up roller system.   
     
     
         2 . The loom according to  claim 1 , said heating arrangement including at least one heating unit extending substantially transversely to said weaving direction. 
     
     
         3 . The loom according to  claim 2 , said at least one heating unit extending over an entire width of the woven structure. 
     
     
         4 . The loom according to  claim 3 , wherein on said at least one heating unit a heat output is variable transversely to said weaving direction. 
     
     
         5 . The loom according to  claim 4 , wherein in at least one first longitudinal region allocated to an edge region of the woven structure said heat output is variable relative to another heat output in a second longitudinal region allocated to a center region of the woven structure. 
     
     
         6 . The loom according to  claim 5 , wherein said at least one first longitudinal region extends over a length in a range between approximately 1/10 and ⅓ of a width of the woven structure. 
     
     
         7 . The loom according to  claim 6 , wherein said at least one first longitudinal region extends over approximately ¼ of said width of the woven structure. 
     
     
         8 . The loom according to  claim 7 , wherein said at least one heating unit is at least two heating units arranged on different sides relative to the woven structure. 
     
     
         9 . The loom according to  claim 8 , wherein said at least one heating unit is movable in a direction toward the woven structure and away from the woven structure. 
     
     
         10 . The loom according to  claim 9 , wherein said at least one heating unit extends in a substantially straight line across the woven structure. 
     
     
         11 . The loom according to  claim 10 , wherein said at least one heating unit extends curved, at least in a plurality of sections, over the woven structure. 
     
     
         12 . The loom according to  claim 11 , wherein said at least one first longitudinal region of said at least one heating unit allocated to said edge region of the woven structure is arranged in said weaving direction at least in sections upstream relative to said second longitudinal region allocated to said center region of the woven structure. 
     
     
         13 . The loom according to  claim 12 , further comprising at least one third take-up roller system arranged in said weaving direction between said first take-up roller system and said second take-up roller system. 
     
     
         14 . The loom according to  claim 13 , said third take-up roller system is configured for operating at a higher conveying speed than said first take-up roller system, and said second take-up roller system is configured for operating at a higher conveying speed than said third take-up roller system. 
     
     
         15 . The loom according to  claim 13 , wherein said at least one heating unit includes at least one heating unit arranged between said first take-up roller system and said third take-up roller system and at least one additional heating unit arranged between said third take-up roller system and said second take-up roller system. 
     
     
         16 . The loom according to  claim 15 , wherein said at least one heating unit between said first take-up roller system and said third take-up roller system is at least two heating units arranged on different sides relative to the woven structure. 
     
     
         17 . The loom according to  claim 15 , wherein said at least one additional heating unit arranged between said third take-up roller system and said second take-up roller system are arranged on a side of the woven structure which is the same. 
     
     
         18 . The loom according to  claim 13 , wherein at least one of said first take-up roller system, said second take-up roller system and said third take-up roller system includes at least two take-up rollers defining a conveying nip therebetween. 
     
     
         19 . The loom according to  claim 13 , wherein at least one of said first take-up roller system, said second take-up roller system and said third take-up roller system includes three take-up rollers, said three take-up rollers being a first take-up roller, a second take-up roller and a third take-up roller, a first conveying nip formed between said first take-up roller and said second take-up roller and a second conveying nip formed between said second take-up roller and said third take-up roller. 
     
     
         20 . The loom according to  claim 18 , wherein at least one of said three take-up rollers has a friction enhancing surface. 
     
     
         21 . The loom according to  claim 19 , wherein said at least one take-up roller having said friction enhancing surface is a plurality of take-up rollers having said friction enhancing surface. 
     
     
         21 . The loom according to  claim 20 , wherein said friction enhancing surface consists of a rubber-like material. 
     
     
         22 . The loom according to  claim 1 , wherein a width of the loom is greater than approximately 5 meters (m). 
     
     
         23 . The loom according to  claim 22 , wherein said width of the loom is greater than approximately 6 m.