Is a paper-making equipment, its purpose is to paper machine paper roll (known as the original paper roll) in turn rewinding paper after rewinding made of finished paper factory. At present, the winder with AC drive instead of DC drive in the papermaking machinery industry has become a trend. The paper roll wound by the reel machine is relatively soft, the interior may be damaged or broken, the edges on both sides are not regular, and the width of the paper can not be directly used in machines such as paper processing or printing. Most paper types (such as newsprint , Relief printing paper, wrapping paper, etc.) must be trimming, slitting, splice the winder, rewinding on the paper core to form a certain size, a certain degree of tightness requirements of the finished paper roll to the factory. The main process of rewinding three tasks: First, cut off the original paper edges; Second, the entire base paper cut into a number of user-wide width; Third, control the finished paper roll diameter, so that it meets the factory specifications .