Device for rotational cutting of band-shaped material

Abstract

The invention relates to a device for rotational cutting of band-shaped material, comprising a rotational cutting cylinder which is fitted with at least one cutting edge and a counter-tool, wherein the band-shaped material is passed between the counter-tool and the rotational cutting roller. The rotational cutting roller is fitted with at least one, and specially two thrust collars placed in the circumference of the counter-tool, which determine the feed motion of the cutting edge towards the counter-tool. According to the invention, at least one sharpening device having at least one sharpening element is provided, which can be placed on the thrust collar or collars or on the counter-tool, said sharpening element removing material from the thrust collars or the counter-tool.

1 . A device for rotary grinding of band-shaped materials, having a rotary cutting roller which has at least one cutter on its exterior surface, and a counter-tool ( 2 ), wherein the band-shaped material is passed between the counter-tool ( 2 ) and the rotary cutting roller, wherein the rotary cutting roller has at least one, in particular two barrel rings ( 1 ), which rest against the circumference of the counter-tool ( 2 ), and by means of which the advance of the cutter toward the counter-tool ( 2 ) can be determined, characterized in that at least one grinding device ( 5 ) with at least one grinding element ( 9 ) is provided, which can be placed on the, or respectively the barrel rings ( 1 ) or the counter tool ( 2 ), and with which material can be removed from the barrel rings ( 1 ) or from the counter-tool ( 2 ).  
     
     
         2 . The device in accordance with  claim 1 , characterized in that the grinding device ( 5 ) can be pivoted on the, or respectively the barrel rings ( 1 ).  
     
     
         3 . The device in accordance with one of the preceding claims, characterized in that the grinding device ( 5 ) can be placed during the cutting process.  
     
     
         4 . The device in accordance with one of the preceding claims, characterized in that in case of need, the grinding device ( 5 ) can be placed manually or automatically.  
     
     
         5 . The device in accordance with one of the preceding claims, characterized in that the grinding device ( 5 ) can be placed and/or brought into contact mechanically, pneumatically and/or hydraulically.  
     
     
         6 . The device in accordance with one of the preceding claims, characterized in that the length of grinding can be freely selected and set.  
     
     
         7 . The device in accordance with one of the preceding claims, characterized in that the contact pressure can be freely selected and, in particular, is pulsating.  
     
     
         8 . The device in accordance with one of the preceding claims, characterized in that the grinding elements ( 9 ) are matched to the barrel ring ( 1 ), or respectively the counter-tool ( 2 ), and in particular have a sandwich construction.  
     
     
         9 . The device in accordance with one of the preceding claims, characterized in that the grinding device ( 5 ) or the grinding element ( 9 ) can be oscillatingly moved transversely in relation to the rotating direction of the workpiece.  
     
     
         10 . The device in accordance with one of the preceding claims, characterized in that the grinding element ( 9 ) is wider or narrower than the barrel ring ( 1 ).  
     
     
         11 . The device in accordance with one of the preceding claims, characterized in that the grinding device ( 5 ) has stripper and/or cleaning elements, in particular roller ( 11 ,  12 ) or blades, which have been placed ahead of and/or behind the grinding element ( 9 ).  
     
     
         12 . The device in accordance with  claim 11 , characterized in that the cleaning elements moisten the grinding spot.  
     
     
         13 . The device in accordance with one of the preceding claims, characterized in that the grinding device ( 5 ) can be pivoted into or counter to the running direction of the barrel rings ( 1 ) or of the counter-tool ( 2 ).  
     
     
         14 . The device in accordance with one of the preceding claims, characterized in that the grinding device ( 5 ) is independent of the diameter of the barrel rings ( 1 ) or the counter-tool ( 2 ).  
     
     
         15 . The device in accordance with one of the preceding claims, characterized in that the shape of the grinding element ( 9 ) is flat, convex, concave or prism-shaped.  
     
     
         16 . The device in accordance with one of the preceding claims, characterized in that a cooling device, which cools the grinding spot, for example a compressed air nozzle, is provided.  
     
     
         17 . The device in accordance with one of the preceding claims, characterized in that the grinding device ( 5 ) can be oscillatingly moved in or counter to the direction of rotation.