1results about How to "Adjust stretch" patented technology

The present application provides a kind of film processing system and method.The film processing system includes: first active roller, it is configured to controlled rotation, film strip is driven forward by first active roller via;Second active roller, it is configured to controlled rotation, film strip from the direction of first active roller is driven forward by second active roller via;Stretch detection device, it is configured to detect the distance value between the positioning mark on the film strip between first active roller and second active roller;Controller, it is configured to control the rotational speed of first active roller and second active roller based on the distance value obtained by the stretch detection device, so that the distance value converges to the predetermined distance threshold range.In this way, by controlling the rotational speed of first active roller and second active roller, the stretch of the film strip can be adjusted very accurately.