Discharging device with online variable discharging amount

The utility model provides a discharging device with the online variable discharging amount, and belongs to the technical field of automation. When the discharging device conducts discharging, firstly, the discharging hole is opened, the bottom end of the discharging pipe body is closed, a cavity communicated with the material storage component is formed in the discharging pipe body, the piston driving component drives the piston to slide towards the top end of the discharging pipe body, the volume of the cavity is increased, the pressure intensity of the cavity is decreased, and materials flow into the discharging pipe body from the material storage component. Afterwards, the discharging hole is closed, the bottom end of the discharging pipe body is opened, the piston driving component drives the piston to slide towards the bottom end of the discharging pipe body, and the materials automatically fall into the beverage cup from the bottom end of the discharging pipe body. Due to the fact that the displacement