Paperboard pretreatment device for corrugated paper forming

The invention relates to the technical field of corrugated cartons, and discloses a paperboard pretreatment device for corrugated paper forming. The paperboard pretreatment device comprises a glue boxcasing; a positive plate is fixedly connected to the inner wall of the glue box casing; a screw rod is in threaded connection in the position, close to the right side of the positive plate, of the inner wall of the glue box casing; a dielectric plate is movably connected to the bottom of the screw rod; and a negative plate is fixedly connected in the position, close to the right side of the dielectric plate, of the inner wall of the glue box casing. According to the paperboard pretreatment device for corrugated paper forming, the glue outlet amount of a glue box is controlled through the electromagnetic principle, glue in the glue box can be sprayed out completely and conveniently during glue spraying, residues on the inner wall of the glue box are avoided, resource waste is prevented, the glue box is prevented f