Transverse hairlines forming apparatus for stainless coil and stainless coil formed by the same

Abstract

A transverse hairline forming apparatus includes a coil supporting unit to which a stainless steel coil is rotatably disposed; a coil winding unit spaced apart from the coil supporting unit, the coil winding unit holding and winding an end of the stainless steel coil; and at least one pair of surface treatment units disposed between the coil supporting unit and the coil winding unit, the at least one pair of surface treatment units configured to form transverse hairlines on a surface of the stainless steel coil perpendicular to a winding direction of the stainless steel coil. While the stainless steel coil is unwound and rewound on the coil winding unit, when the stainless steel coil passes below the at least one pair of surface treatment units, the at least one pair of surface treatment units form the transverse hairlines on the surface of the stainless steel coil.

What is claimed is: 
     
         1 . A transverse hairline forming apparatus for a stainless steel coil, the transverse hairline forming apparatus comprising:
 a coil supporting unit to which a stainless steel coil is rotatably disposed;   a coil winding unit spaced apart from the coil supporting unit, the coil winding unit holding and winding an end of the stainless steel coil; and   at least one pair of surface treatment units disposed between the coil supporting unit and the coil winding unit, the at least one pair of surface treatment units configured to form transverse hairlines on a surface of the stainless steel coil perpendicular to a winding direction of the stainless steel coil,   wherein, while the stainless steel coil is unwound from the coil supporting unit and then is rewound on the coil winding unit, when the stainless steel coil passes below the at least one pair of surface treatment units, the at least one pair of surface treatment units form the transverse hairlines on the surface of the stainless steel coil.   
     
     
         2 . The transverse hairline forming apparatus of  claim 1 , wherein
 each of the at least one pair of surface treatment units comprises,   a grinding belt of a caterpillar shape;   a drive roller disposed at an end of an inner side of the grinding belt, the drive roller to rotate the grinding belt;   a driven roller disposed at another end of the inner side of the grinding belt, the driven roller to support the grinding belt to be moved endlessly by the drive roller; and   a working roller to cause a portion of the grinding belt to be in line contact with the surface of the stainless steel coil, the working roller to move between the drive roller and the driven roller to form the transverse hairlines.   
     
     
         3 . The transverse hairline forming apparatus of  claim 2 , wherein
 the working roller is disposed to reciprocate between a first position adjacent to the drive roller and a second position adjacent to the driven roller.   
     
     
         4 . The transverse hairline forming apparatus of  claim 3 , wherein
 the working roller allows the portion of the grinding belt to be in line contact with the surface of the stainless steel coil when the working roller moves from the first position to the second position.   
     
     
         5 . The transverse hairline forming apparatus of  claim 3 , wherein
 the working roller of each of the at least one pair of surface treatment units is disposed to move in opposite directions.   
     
     
         6 . The transverse hairline forming apparatus of  claim 2 , wherein
 an abrasive grain size of the grinding belt of each of the at least one pair of surface treatment units is different from each other.   
     
     
         7 . The transverse hairline forming apparatus of  claim 1 , wherein
 the at least one pair of surface treatment units comprises four pairs of surface treatment units,   each of the four pairs of surface treatment units comprises a grinding belt, and   an abrasive grain size of the grinding belt of at least one pair of the surface treatment units among the four pairs of surface treatment units is different from the abrasive grain sizes of the grinding belts of other surface treatment units.   
     
     
         8 . The transverse hairline forming apparatus of  claim 1 , wherein
 the stainless steel coil comprises a stainless steel coil on a surface of which vertical hairlines are formed.   
     
     
         9 . The transverse hairline forming apparatus of  claim 1 , wherein
 the stainless steel coil comprises a stainless steel coil on a surface of which is embossing processed.   
     
     
         10 . A stainless steel coil comprising:
 a surface on which transverse hairlines are processed by a transverse hairline forming apparatus for a stainless steel coil,   wherein the transverse hairline forming apparatus for a stainless steel coil comprises,   a coil supporting unit to which a stainless steel coil is rotatably disposed;   a coil winding unit spaced apart from the coil supporting unit, the coil winding unit holding and winding an end of the stainless steel coil; and   at least one pair of surface treatment units disposed between the coil supporting unit and the coil winding unit, the at least one pair of surface treatment units configured to form transverse hairlines on a surface of the stainless steel coil perpendicular to a winding direction of the stainless steel coil,   wherein, while the stainless steel coil is unwound from the coil supporting unit and then is rewound on the coil winding unit, when the stainless steel coil passes below the at least one pair of surface treatment units, the at least one pair of surface treatment units form the transverse hairlines on the surface of the stainless steel coil.