| 摘要 |
PURPOSE: A roll apparatus having an anti-swerving function is provided to force strip toward the center of a roll body by a moving unit in case the initial contact of the strip to the roll body is deviated from the roll body. CONSTITUTION: A roll apparatus having an anti-swerving function comprises a rotary shaft(110) and a roll body(120). Both ends of the rotary shaft are coupled to respective bearing blocks(111) so that the rotary shaft can rotate. The center of the roll body is fitted to the rotary shaft so that the roll body rotates along with the rotary shaft. The roll body has a crown-shaped surface structure as the outer diameter of the roll body decreases from the center(121) to both ends(122) of width. The rolling force is greater at the center than at the ends of the roll body when the roll body contacts strip so that the strip can be advanced along the center of the roll body. |
