Pre-drying device for gypsum board production

The invention discloses a pre-drying device for gypsum board production, and relates to the technical field of gypsum board production. Comprising a box body, material openings are formed in the two ends of the box body, and sealing pieces are arranged at the two ends in the box body; supporting rollers are arranged in the box body in a linear array mode and are of a hollow structure, and adsorption holes are formed in the surfaces of the supporting rollers. Overturning pieces are arranged at the two ends of the interior of the box body and used for overturning the gypsum board; a drying piece is arranged at the top end of the interior of the box body, the drying piece comprises a hot air drying box slidably arranged at the top end of the box body and used for blowing out hot air, and a hole drying piece is slidably arranged on one side of the hot air drying box and used for drying hole sites in the gypsum board; according to the gypsum board drying device, gypsum boards with holes can be dried, a static dryi