Device for improving performance and processing characteristics of capacitive film

The utility model discloses a device for improving the performance and processing characteristics of a capacitor film. The device comprises a box body, a functional roller group and an air cooling assembly, the functional roller set comprises a preheating roller set, a stretching roller set and a shaping roller set, and the preheating roller set, the stretching roller set and the shaping roller set are sequentially arranged according to the conveying path of the capacitor film. The air cooling assembly is arranged on the box body; the air cooling assembly is arranged below one preheating roller at the tail end of the preheating roller set, the capacitor film is cooled through the air cooling assembly, the temperature of the edge of the capacitor film is lower than that of the middle of the capacitor film, and the stretching degree of the middle of the capacitor film in the stretching roller set is larger than that of the edge of the capacitor film. Therefore, the roughness of the produced capacitor film is un