Automatic opening and closing material mechanism of material box

The invention discloses an automatic opening and closing material mechanism of a material box. The automatic opening and closing material mechanism of the material box comprises a material collectingbox and a material box, wherein the material box is arranged on the material collecting box; the automatic opening and closing material mechanism of the material box is characterized in that an opening and closing plate, a sliding block mechanism, a rotating mechanism, a spring mechanism and a guide supporting rod are arranged at the bottom of the material box correspondingly, and the lower part of the opening and closing plate is connected to the sliding block mechanism and the rotating mechanism correspondingly; the lower part of the sliding block mechanism is connected to the spring mechanism and the guide supporting rod correspondingly, and the spring mechanism is arranged on the guide supporting rod in a sleeving mode; and a material guiding groove communicating with the material collecting box is further for