The position of the rollers is at a certain angle with the direction of movement of the product to be straightened. Two or three large ones are active pressure rollers, which are driven by the motor to rotate in the same direction. Several small rollers on the other side are driven pressure rollers. It is rotated by the friction of a rotating rod or tube. In order to achieve the required compression of the product by the rollers, these small rollers can be adjusted forward or backward at the same time or respectively. Generally, the more the number of rollers, the higher the accuracy of the product after straightening. After the product is bitten by the roller, it continuously moves in a straight line or rotates, so that the product undergoes various deformations such as compression, bending, and flattening, and finally achieves the purpose of straightening.





