Winder and core for use in the winder

Abstract

Winder for winding a plurality of material webs running beside one another, e.g., paper or board webs, onto cores lying beside one another end to end in a winding bed formed by two carrier rolls, to form wound rolls. In the regions in which they abut one another, the cores have elements which can be compressed in the axial direction. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

1 . A winder for winding a plurality of material webs running beside one another, in particular paper or board webs, on to cores lying beside one another end to end in a winding bed formed by two carrier rolls, to form wound rolls, wherein, in the regions in which they abut one another, the cores have elements which can be compressed in the axial direction.  
   
   
       2 . The winder for winding a plurality of material webs running beside one another, in particular paper or board webs, on to cores lying beside one another end to end in a winding bed formed by two carrier rolls, to form wound rolls, in particular as claimed in  claim 1 , wherein, in the regions in which they abut one another, the cores have centering elements, the centering elements of cores ( 1 ,  2 ;  8 ,  9 ;  14 ,  15 ) lying beside one another in each case forming a form fit, at least in the axial direction.  
   
   
       3 . The winder as claimed in  claim 2 , wherein the centering elements additionally form a form fit in the tangential direction and/or in the radial direction.  
   
   
       4 . The winder as claimed in  claim 2 , wherein the centering elements are formed, at least to some extent, as compressible elements.  
   
   
       5 . The winder as claimed in  claim 2 , wherein the centering elements are formed as conical projections or conical recesses or depressions.  
   
   
       6 . A core, in particular for use in a winder as claimed in  claim 1 , wherein, in the region in which it abuts an adjacent core, it has at least one element that is compressible in the axial direction.  
   
   
       7 . A core, in particular for use in a winder as claimed in  claim 6 , wherein, in the region in which it abuts an adjacent core, it has a centering element which forms a form fit, at least in the axial direction, with a centering element of the adjacent core.  
   
   
       8 . The core as claimed in  claim 7 , wherein the centering elements additionally form a form fit in the tangential direction and/or in the radial direction.  
   
   
       9 . The core as claimed in  claim 7 , wherein the centering elements are formed, at least to some extent, as compressible elements.  
   
   
       10 . The core as claimed in  claim 7 , wherein the centering elements are formed as conical projections or conical recesses or depressions.