Method for improving board levelling effect

The invention belongs to the technical field of metal board processing, and particularly relates to a method for improving the board levelling effect. A levelling machine used in the method comprisesa controller, a bracket, drive rollers, a levelling unit, slide shafts and a transmission chain, wherein one group of drive rollers is arranged at one side of the bracket; the other side of the bracket is equipped with the levelling unit which is used for levelling boards; the controller is mounted on the bracket for controlling the drive rollers to rotate, the drive rollers are rotatably mountedon the bracket through the slide shafts; the levelling unit comprises a hollow shaft and levelling rollers, and the drive rollers drive the levelling rollers through the transmission chain; the levelling rollers are symmetrically arranged up and down; and ring-shaped rubber sheets are arranged on outer rings of the levelling rollers. The levelling machine used in the method is equipped with one group of levelling rollers,