Corrugated paper arching-preventing mechanism for laminator

The utility model discloses a corrugated paper arching-preventing mechanism for a laminator. The corrugated paper arching-preventing mechanism for the laminator comprises a rack and a press roller group rotationally arranged on the paper outlet end of the rack; a rotary shaft is rotationally arranged behind the press roller group on the rack; multiple belts are arranged on the rotary shaft; an interval exists between every two adjacent belts; a bridging plate is arranged between the rotary shaft and the press roller group on the rack; the rotary shaft is provided with multiple annular grooves at two sides of the belts and between adjacent belts; multiple extending plates are respectively fixedly connected with one side, facing the rotary shaft, of the bridging plate; the extending plates extend toward two sides of the belts and between two adjacent belts and are respectively correspondingly positioned in multiple annular grooves. The corrugated paper arching-preventing mechanism for the laminator is reasonable in structure, the front end or a protruded part on corrugated paper is prevented from entering the gap between the front ends of the belts and the bridging plate when the corrugated paper passes by the belts and the bridging plate, so the corrugated paper is prevented from being arched and the passing consistency of the corrugated paper is ensured.