Sizing optimization method and system for film transfer sizing machine

The invention relates to the technical field of papermaking sizing, and particularly provides a sizing optimization method and system of a film transfer sizing machine, the method comprises the following steps: setting initial sizing parameters and paper quality requirements, the sizing parameters comprising sizing roller pressure, metering rod rotating speed and sizing machine speed, and obtaining paper quality after sizing; the sizing parameters of the sizing machine are changed based on the genetic algorithm, the genetic algorithm is operated with the paper quality parameter as the fitness until the maximum evolution algebra is reached, and the paper quality under the sizing parameters needs to be obtained every time the sizing parameters are obtained; obtaining a group of sizing parameters with the best paper quality; according to the method, a worker does not need to experiment the sizing parameters one by one according to experience, the sizing parameters are automatically changed through an intelligent