Synchronous automatic paper aligning and collecting device of box pasting machine

The utility model relates to the technical field of box pasting machines, in particular to a synchronous automatic paper aligning and collecting device of a box pasting machine, which comprises a working table, a top plate is fixedly connected onto the working table, a vertical plate is fixedly connected onto one side of the top plate, and a bearing mechanism for storing paperboards is detachably connected between the vertical plate and the top plate. An auxiliary mechanism used for pressing a paperboard downwards is arranged on the side, away from the top plate, of the vertical plate. The auxiliary mechanism comprises a supporting plate, the top of the supporting plate is fixedly connected with a transverse plate, the top of the transverse plate is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with the middle of a fixing frame arranged below the transverse plate, and the bottom of the fixing frame is rotationally connected with a plurality of pressing rollers