Rolling method for a profiled section, in particular, a flange section, and universal roll stand therefor

Abstract

In a rolling method for a profiled section performed in a universal roll stand with horizontal rolls and vertical rolls having a vertical roll center, hydraulic cylinder units configured to adjust the horizontal rolls are provided. The horizontal rolls are adjusted with the hydraulic cylinder units, based on a preset nominal horizontal roll gap, toward one another to form an actual horizontal roll gap, wherein the horizontal rolls are adjusted with the preset nominal horizontal roll gap symmetrically relative to the vertical roll centers. An additional nominal value is supplied to the hydraulic cylinder units and, based on the additional nominal value, the horizontal rolls are vertically adjusted in the same direction by the same amount. The vertical rolls are adjusted toward the horizontal rolls to form actual vertical roll gaps. A universal roll stand for performing the device is also described.

What is claimed is:  
     
         1 . A rolling method for a profiled section in a universal roll stand with horizontal rolls and vertical rolls having a vertical roll center, the method comprising the steps of: 
 providing hydraulic cylinder units configured to adjust the horizontal rolls;    adjusting the horizontal rolls with the hydraulic cylinder units, based on a preset nominal horizontal roll gap, toward one another to form an actual horizontal roll gap, wherein the horizontal rolls are adjusted with the preset nominal horizontal roll gap symmetrically relative to the vertical roll centers;    supplying an additional nominal value to the hydraulic cylinder units and, based on the additional nominal value, vertically adjusting the horizontal rolls in the same direction by the same amount;    adjusting the vertical rolls toward the horizontal rolls to form actual vertical roll gaps.    
     
     
         2 . The method according to    claim 1   , wherein the additional nominal value is supplied before rolling the profiled section.  
     
     
         3 . The method according to    claim 1   , wherein the additional nominal value is supplied during rolling of the profiled section.  
     
     
         4 . The method according to    claim 1   , further comprising the steps of comparing the profiled section after rolling with a nominal profiled section and determining the additional nominal value based on the comparison of the profiled section after rolling with the nominal profiled section.  
     
     
         5 . The method according to    claim 4   , further comprising the step of providing a control unit, wherein the step of comparing and the step of determining are performed in the control unit.  
     
     
         6 . The method according to    claim 1   , further comprising the step of providing hydraulic cylinder units configured to adjust the vertical rolls to the actual vertical roll gap.  
     
     
         7 . The method according to    claim 1   , further comprising the step of vertically adjusting at least one of a component for the profiled section arranged upstream of the roll stand and a component for the profiled section arranged downstream of the roll stand based on the additional nominal value.  
     
     
         8 . A universal roll stand for rolling profiled sections, the universal roll stand comprising: 
 horizontal rolls and vertical rolls having a vertical roll center;    first control elements configured to adjust the horizontal rolls, based on a preset nominal horizontal roll gap, toward one another to form an actual horizontal roll gap, wherein the horizontal rolls are adjusted with the preset nominal horizontal roll gap symmetrically relative to the vertical roll centers;    second control elements configured to adjust the vertical rolls toward the horizontal rolls to form actual vertical roll gaps;    wherein the first control elements are hydraulic cylinder units and wherein the hydraulic cylinder units are configured to vertically adjust, based on an additional nominal value, the horizontal rolls in the same direction by the same amount.    
     
     
         9 . The universal roll stand according to    claim 8   , further comprising a profiled section measuring device arranged downstream of the horizontal and vertical rolls and configured to measure the profiled section after rolling.  
     
     
         10 . The universal roll stand according to    claim 9   , further comprising a control unit connected to the profiled section measuring device, wherein the control unit is configured to receive a nominal profiled section, and wherein the control unit is connected to the first control elements and configured to control the horizontal rolls.  
     
     
         11 . The universal roll stand according to    claim 8   , wherein the second control elements are hydraulic cylinder units.  
     
     
         12 . The universal roll stand according to    claim 8   , further comprising at least one of a component for the profiled section arranged upstream of the roll stand and a component for the profiled section arranged downstream of the roll stand, wherein the at least one component is configured to be vertically adjusted based on the additional nominal value.