Roll bending apparatus

Abstract

A roll bending apparatus includes: a roll pair formed by a pair of rolls disposed facing each other, the roll pair being configured to sandwich an elongated material between the rolls to perform forming on the elongated material; a slide mechanism configured to slide the roll pair in a first normal direction that is a direction normal to a conveying direction of the elongated material on a plane including the conveying direction; and a tilt mechanism configured to rotate the roll pair about a tilt axis that extends in a second normal direction that is a direction orthogonal to the conveying direction and the first normal direction. The slide mechanism further slides the roll pair to change a position of the roll pair relative to the tilt axis.

1 . A roll bending apparatus comprising:
 a roll pair formed by a pair of rolls disposed facing each other, the roll pair being configured to sandwich an elongated material between the rolls to perform forming on the elongated material;   a slide mechanism configured to slide the roll pair in a first normal direction that is a direction normal to a conveying direction of the elongated material on a plane including the conveying direction; and   a tilt mechanism configured to rotate the roll pair about a tilt axis that extends in a second normal direction that is a direction orthogonal to the conveying direction and the first normal direction, wherein   the slide mechanism further slides the roll pair to change a position of the roll pair relative to the tilt axis.   
     
     
         2 . The roll bending apparatus according to  claim 1 , wherein
 the slide mechanism includes:
 a first slide part configured to slide at least the tilt mechanism and the roll pair collectively in the first normal direction; and 
 a second slide part configured to slide the roll pair in the first normal direction to change the position of the roll pair relative to the tilt axis. 
   
     
     
         3 . The roll bending apparatus according to  claim 2 , wherein
 the slide mechanism further includes a third slide part configured to slide at least one of the rolls forming the roll pair in the first normal direction to change a gap between the rolls.   
     
     
         4 . The roll bending apparatus according to  claim 1 , comprising a roll drive unit configured to drive each of the rolls to rotate, wherein
 the roll drive unit is attachable to and detachable from the rolls.   
     
     
         5 . The roll bending apparatus according to  claim 1 , comprising a plurality of forming roll parts each including the roll pair, the plurality of forming roll parts being arranged in the conveying direction of the elongated material, wherein
 at least one of the forming roll parts includes the slide mechanism and the tilt mechanism.   
     
     
         6 . The roll bending apparatus according to  claim 5 , wherein
 the forming roll parts include:
 a cross-sectional-shape-forming roll bending part configured to roll-form an elongated plate member that is the elongated material into an elongated component having a predefined cross-sectional shape; and 
 a curve-forming forming roll part configured to form a curve in the elongated component that is the elongated material, and 
   the curve-forming forming roll part is provided with the slide mechanism and the tilt mechanism.