Flexible film tension deviation rectification control system

Abstract

The invention belongs to the related field of material conveying and quality monitoring, and discloses a flexible film tension deviation rectification control system which comprises a tension measuring roller, a deviation rectification frame, a driving mechanism, a driving motor and a deviation rectification controller, wherein the tension measuring roller is jointly formed by a total tension detection unit and a tension distribution detection unit which are connected into a whole horizontally, and measures to obtain total tension and tension distribution signals during conveying of the flexible film; the deviation rectification controllers calculates a control voltage corresponding to output based on the tension distribution signal and controls the driving motor to rotate by a corresponding corner, so as to drive the driving mechanism to rotate synchronously; and the deviation rectification frame converts the rotating movement of the driving mechanism into the deviation rectification action of the tension measuring roller, thus completing the overall deviation rectification process. According to the invention, not only can synchronous high-precision measurement on total tension and tension distribution be realized, but also deviation rectification control can be realized based on the tension distribution signal, and correspondingly, the quality and precision of final deviation rectification control can be remarkably improved.

Description

technical field [0001] The invention belongs to the related field of material conveying quality monitoring, and more specifically relates to a flexible film tension correction control system. Background technique [0002] The flexible film winding conveying system is widely used in papermaking, printing, food processing, flexible electronic packaging and other industrial fields. It mainly includes an unwinding module, a tension detection module, a feeding module, and a winding module. One of the key links in the film winding conveying system, the effect of tension detection and control directly affects the quality of product processing. For example, if the tension is too high, the film will be deformed or even broken, and if the tension is too small, it will cause wrinkles and lateral drift of the film, which will reduce the quality of the product; There are some studies in , but it has not been well resolved. [0003] Most of the flexible membrane tension detection scheme...

AI Technical Summary

Problems solved by technology

For example, a cantilever type low tension sensor is disclosed in CN 201320664096.2, which can only detect the average tension of the flexible film, but cannot complete the detection of the tension distribution of the flexible film section; The deviation correction device detects the deviation of the belt and adjusts it. However, the deviation correction device cannot obtain the tension value in real time and closely combine this tension value to perform deviation correction accordingly. Therefore, there are also problems such as insufficient deviation control accuracy and low production efficiency.

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