Cutting device for paper-plastic bag cutting and sealing integration machine

The invention belongs to the field of paper-plastic bag cutting and sealing equipment and particularly relates to a cutting device for a paper-plastic bag cutting and sealing integration machine. The cutting device comprises a sliding support and a cutter. The sliding support is connected with a horizontal displacement drive mechanism. The sliding support is formed by connecting an upper plate and a rear plate. A sliding block is installed on the rear plate through a connecting shaft and can slide along the connecting shaft front and back. A front clamping groove and a rear clamping groove are formed in the connecting shaft in the length direction. The cutter is installed on the sliding block. The lowest position of the cutter is lower than the bottom face of the sliding block. The sliding block is provided with a spring locating column. The top end of the spring locating column penetrates the hole wall of a shaft hole of the connecting shaft of the sliding block and abuts against the connecting shaft. The cu