Automatic cutting and cutting device for printing machine

The utility model discloses an automatic cutting and cutting device for a printing machine, which comprises a printing machine wall plate and a unwinding rack. The printing machine wall plate is hingedly connected with a supporting arm and a lifting cylinder, and a piston rod of the lifting cylinder is associated with the printing machine. The support arm is hinged. The support arm is provided with a receiving cylinder and a cutting cylinder. The supporting arm is provided with a receiving roller and a cutter, and the receiving cylinder is connected with the receiving roller through the swing arm. The material cylinder is connected with the cutter through the swing arm, and the lifting cylinder, the receiving cylinder and the cutting cylinder are respectively electrically connected with the programmable controller through a solenoid valve, and the unwinding rack is provided with an inverting arm. Both ends are provided with a roller, which is characterized in that a set of infrared photoelectric eyes are arranged in front of the pick-up roller, and a set of infrared photoelectric eyes are also arranged in the front of the roller. The two sets of infrared photoelectric eyes and the printing machine can be provided. The programming controller is electrically connected and the actuator of the flip arm is also electrically connected to the programmable controller. The design of the utility model is successful, which makes the cutting and cutting process stable and fast when printing, reduces the labor intensity of the workers and reduces the labor force, and improves the production efficiency of the printing machine.