Rewinder is a kind of special equipment for paper, mica tape and film. Its purpose is to rewind the paper roll (called base roll) produced by paper machine in turn. After rewinding, the paper is made into finished paper. It has become a trend to replace DC drive with AC drive for rewinder in papermaking machinery industry. The reels rolled by the reeler are relatively soft, and there may be damage or broken ends inside. The edges on both sides are not neat, and the width of the web cannot be directly used in paper processing or printing machines. Most kinds of paper (such as newsprint, relief printing paper, packaging paper, etc.) must be cut by the rewinder, cut, spliced, rewound on the core of the paper to form a certain specification and a certain degree of tightness Only finished paper roll can be delivered.

The rewinding process mainly completes three tasks:

First, remove the raw paper burr;

Secondly, the whole base paper is divided into several sizes that meet the user's specifications;

Third, control the roll diameter of the finished paper roll to make it conform to the factory specifications