Sleeve for press roll and sleeve mounted press roll

Abstract

To provide a sleeve for a press roll and a sleeve mounted press roll, wherein a cylindrical sleeve ( 1 ) to be used by externally mounting on a press roll ( 2 ) comprises a cylindrical main layer ( 11 ) composed with a composite material, where a fiber reinforcing material is bound with a matrix resin, the first cover layer ( 12 ) is formed on an outer peripheral surface of the main layer ( 11 ), and the second cover layer ( 13 ) is formed on an inner circumference surface of said main layer ( 11 ).

What is claimed is:  
     
         1 . A sleeve for a press roll, 
 wherein the sleeve is a cylindrical sleeve ( 1 ) to be used by externally mounting on a press roll ( 2 ), and the cylindrical sleeve ( 1 ) comprises a cylindrical main layer ( 11 ) composed with a composite material, where a fiber reinforcing material is bound with a matrix resin.    
     
     
         2 . The sleeve for the press roll according to the  claim 1 , 
 wherein, the first cover layer ( 12 ) comprising the composite material, where the fiber reinforcing material is bound with the matrix resin, is formed on an outer peripheral surface of the cylindrical main layer ( 11 ), and the second cover layer ( 13 ) is formed on an inner circumference surface of the cylindrical main layer ( 11 ).    
     
     
         3 . The sleeve for the press roll according to the  claim 2 , 
 wherein a cushion layer ( 14 ) is formed between the main layer ( 11 ) and the second cover layer ( 13 ), or the third cover layer ( 15 ) and the cushion layer ( 14 ) are formed between the main layer ( 11 ) and the second cover layer ( 13 ) in this order.    
     
     
         4 . The sleeve for the press roll according to the  claim 1 , 
 wherein at least a part of the fiber reinforcing material in the main layer ( 11 ) comprises a material having high heat conductivity.    
     
     
         5 . The sleeve for the press roll according to the  claim 2 , 
 wherein at least a part of the fiber reinforcing material in the first cover layer ( 12 ) comprises the material having high heat conductivity.    
     
     
         6 . A sleeve mounted press roll, 
 wherein the cylindrical sleeve ( 1 ) to be used by externally mounting on the press roll ( 2 ) is externally mounted in a non-fixed state on the press roll ( 2 ), and    said cylindrical sleeve ( 1 ) comprises the cylindrical main layer ( 11 ) composed with the composite material, where a fiber reinforcing material is bound with a matrix resin.    
     
     
         7 . The sleeve mounted press roll according to the  claim 6 , 
 wherein the press roll ( 2 ) is a press roll of a corrugator being a corrugated cardboard manufacturing device.    
     
     
         8 . The sleeve mounted press roll according to the  claim 6 , 
 wherein a regulating means ( 2   a ) for regulating the move in an axial direction of the sleeve ( 1 ) externally mounted on the press roll ( 2 ) is provided at said press roll ( 2 ).    
     
     
         9 . The sleeve mounted press roll according to the  claim 6 , 
 wherein the press roll ( 2 ) is the roll made with a metal or a material having elasticity.    
     
     
         10 . The sleeve mounted press roll according to the  claim 6 , 
 wherein the press roll ( 2 ) is a fixed or rotational roll, and a fluid can be fed between the press roll ( 2 ) and the sleeve ( 1 ) externally mounted on the press roll ( 2 ).    
     
     
         11 . The sleeve mounted press roll according to the  claim 6 , 
 wherein the press roll ( 2 ) is a press roll pressing toward a corrugation roll ( 3 ) of the corrugator being a corrugated cardboard manufacturing device,    the press roll ( 2 ) is a fixed or rotational roll and the fluid can be fed between the press roll ( 2 ) and the sleeve ( 1 ) externally mounted on said press roll ( 2 ), the auxiliary rolls ( 7 ) and ( 7 ) are provided at the outer peripheral side of the press roll ( 2 ) externally mounted with the sleeve ( 1 ) and the both sides of a contacted position (P), where the press roll ( 2 ) is contacted with the corrugation roll ( 3 ), and said auxiliary rolls ( 7 ) and ( 7 ) can suppress the fluid fed between the press roll ( 2 ) and the sleeve ( 1 ) to escape from the pressed position by the pressure in the contacted position (P).