Method for Detecting Strip Edges

Abstract

A method of detecting strip edges in a cold rolling mill and/or strip-forming installation in which the strip edges ( 13, 14 ) are continuously detected in a contactless manner with two optical recognition systems, the right strip edge ( 14 ) and the left strip edge ( 13 ) are detected along a strip length of more than 800 mm with an image recording system ( 4, 5 ), the image data are communicated to a computer ( 11 ) and are processed there, and a so determined strip edge shape is taken into account during a regulation process.

1 - 9 . (canceled) 
   
   
       10 . A method of detecting strip edges in a cold rolling mill according to which the strip edges ( 13 ,  14 ) are continuously detected in a contactless manner with two optical recognition systems,
 characterized in that   the right strip edge ( 14 ) and the left strip edge ( 13 ) are simultaneously detected along a strip length of more than 800 mm with an image recording system ( 4 ,  5 ) as image data, the image data are communicated to a computer ( 11 ) and are processed there, and so a strip edge shape is determined,   wherein at least eight edge points ( 12 ) are taken into consideration, and   image data, which are determined in a computer ( 11 ) are used for regulating adjustment of a roll gap.   
   
   
       11 . A method according to  claim 10 ,
 characterized in that   position and angular inclination of edge points ( 12 ) are determined by reduction of image data into necessary data points in a computer ( 11 ).   
   
   
       12 . A method according to  claim 10 ,
 characterized in that   the recognition system ( 1 ) and the computer ( 11 ) are fitted on existing installations.   
   
   
       13 . A method according to  claim 10 ,
 characterized in that   an entire strip shape in a monitored region is continuously recorded.   
   
   
       14 . A method according to  claim 10 ,
 characterized in that   in accordance with an image of the strip shape, strip position correction values are set by an angular position of rolls.   
   
   
       15 . A method according to  claim 10 ,
 characterized in that   data, which are generated by the computer ( 11 ) are additionally used for detection, if necessary, elimination of strip edge fissures and/or strip surface defects.