Automatic discharging mechanism of seed pretreatment device

The utility model relates to a seed treatment device and an automatic discharging mechanism. The frame body is arranged on the rack through a spring; the screen mesh is arranged at the bottom of the frame body and can rotate relative to the frame body, the screen mesh is used for screening seeds according to the sizes of the seeds, the frame body is used for preventing the seeds on the screen meshfrom falling off from the screen mesh, and when the screen mesh rotates to be in an inclined state, the seeds can fall off from the lower end of the screen mesh; the recovery box is arranged on the rack, is positioned below the screen and is used for recovering the seeds falling from the screen holes penetrating through the screen; the conveying belt is arranged on the rack and used for conveyingthe seeds falling from the lower end of the screen to a preset position when the screen rotates to be in an inclined state; and the vibration device is used for driving the frame body and the screento vibrate. The seed screen