Apparatus for grinding surface of steel sheet

Abstract

The present invention relates to an apparatus for grinding a surface of a steel sheet, the apparatus comprising: a conveyor for transferring a steel sheet; and a grinding means, which is coupled above the conveyor such that the grinding means can be rotated about a direction perpendicular to the conveyor as an axis, and which grinds the surface of the steel sheet, wherein the angle at which the steel sheet is ground is adjusted by rotation. Through the above configuration, as the grinding means is rotatably coupled to the conveyor, it is possible to grind various patterns on the surface of the steel sheet by adjusting the grinding angle through the rotation of the grinding means.

1 . A steel plate surface polishing device, comprising:
 a conveyor transferring a steel plate; and   a polishing means positioned over and coupled to the conveyor to be rotatable around an axis along a direction perpendicular to the conveyor, polishing a surface the steel plate, and adjusting a polishing angle of the steel plate according to rotation.   
     
     
         2 . The steel plate surface polishing device of  claim 1 , wherein a guide rail is coupled to an upper end of the conveyor to guide a moving roller coupled to an end of the polishing means and to fix a rotation angle of the polishing means. 
     
     
         3 . The steel plate surface polishing device of  claim 2 , wherein the guide rail guides the polishing means to be rotated at an angle ranging from 0 degrees to 45 degrees from a direction perpendicular to a transfer direction of the conveyor. 
     
     
         4 . The steel plate surface polishing device of  claim 3 , wherein a plurality of the polishing means are disposed to be symmetrical with each other in a front/rear direction. 
     
     
         5 . The steel plate surface polishing device of  claim 3 , wherein a driving roller driven by a driving motor is coupled to one side of the polishing means, wherein a horizontal roller positioned in line with the driving roller to be movable in a transverse direction is coupled, wherein a vertical roller is coupled over and between the driving roller and the horizontal roller to be movable in a longitudinal direction, wherein a polishing belt is coupled integrally to the driving roller, the horizontal roller, and the vertical roller, wherein a length of a lowermost end of the polishing belt is adjusted as the horizontal roller and the vertical roller are moved in the transverse direction and the longitudinal direction and the length of the lowermost end is adjusted as the polishing means is rotated.