| 摘要 |
Disclosed is a method and a device for adjusting the height of a slitter blade wherein the quality at a slitting section of a cardboard web is ensured in a slitter device by finding an optimal engaging point of a receiving roll and a slitter blade, and setting of the engaging point can be achieved easily by a simple and low cost mechanism. A center ( O 1 ) of a slitter blade ( 26 ) is located on the downstream side of a center ( O 2 ) of a receiving roll ( 27 ) in the traveling direction of a cardboard web, the slitter blade ( 26 ) and the receiving roll ( 27 ) are rotated such that the outer circumferential surfaces thereof move in the same direction as the traveling direction ( b ) of a cardboard web ( W ), light beams ( 1 , f ) are irradiated in the width direction of the cardboard web ( W ) to pass through a contact position ( a ) of the outer circumferential surface of the receiving roll with the cardboard web ( W ), the slitter blade ( 26 ) is brought close towards the receiving roll ( 27 ), and a position where the circular outer edge ( 26 a) of the slitter blade ( 26 ) intercepts the light beams ( 1 , f ) is determined as a slitting position of the cardboard web ( W ) for the slitter blade ( 26 ). |
