The utility model discloses a self-
adhesive label paper die-
cutting machine which comprises a die-
cutting machine body, a supporting plate is fixedly connected to the middle of the inner side face of the die-
cutting machine body, a negative pressure pump is fixedly connected to the upper surface of the supporting plate, and an
exhaust pipe is fixedly connected to one side of the outer surface of the negative pressure pump. According to the self-
adhesive label paper die-cutting machine, through the arrangement of a negative pressure pump, an
exhaust pipe, a cover body, a through hole, a two-way screw rod, a first sliding block and a baffle, when the negative pressure pump is started, gas in the cover body is extracted through the
exhaust pipe, negative pressure is generated at the through hole, and therefore
label paper is fixed, the phenomenon that the label paper deviates in the conveying process is not likely to happen, and the service life of the label paper is prolonged. Meanwhile, when label paper is conveyed, pulling force is generated under the action of negative pressure, the label paper is not prone to loosening and wrinkling during
die cutting, the two-way screw rotates, the two first sliding blocks drive the baffles to move, the distance between the two baffles is adjusted according to the size of the label paper, and the label paper
die cutting device is suitable for being used for the label paper with different widths.