Paperboard turnover device for paperboard production line

The utility model relates to the technical field of paperboard production, and particularly discloses a paperboard production line plate turnover device which comprises a supporting frame and a plurality of conveying belts installed on the supporting frame and used for conveying paperboards, plate turnover assemblies are arranged between the conveying belts, and each plate turnover assembly comprises a feeding mechanism and a receiving mechanism which are rotationally connected between the conveying belts. The feeding mechanism comprises a plurality of fixing blocks rotationally connected between the conveying belts, a feeding plate rotationally connected between the fixing blocks and first check blocks slidably connected to the fixing blocks, and the receiving mechanism comprises a receiving plate rotationally connected between the conveying belts and a second check block fixedly connected to the end of the receiving plate. The paperboard turnover device aims at solving the problem that when a traditional pa