The utility model discloses a
paperboard crease
processing device which comprises a frame body, a two-way module sliding table is arranged on the upper portion of the interior of the frame body, two sliding blocks are connected to the interior of the two-way module sliding table in a sliding mode, and the ends, away from the two-way module sliding table, of the sliding blocks are fixedly connected with a fixing plate. Two fixing columns are fixedly connected to the bottom end of a fixing plate, a third air cylinder is started to drive a fixing frame to move, the fixing frame drives a movable rod to move, the movable rod drives a pressing plate to move, a
paperboard is clamped and fixed through the pressing plate, the
paperboard is prevented from moving in the
machining process, meanwhile, in order to deepen creases of the paperboard, a second air cylinder can be started to drive a
machining table to descend a little, and therefore the paperboard is machined. And then the first air cylinder is started to independently drive the
extrusion strip to move downwards, the
extrusion strip is smaller than the bottom end of the
processing table, and the crease of the paperboard is extruded again, so that the crease of the paperboard is deepened, the size of the original crease of the paperboard is not changed, and the paperboard can be conveniently folded and used in the later period.