Automatic dispenser for mixed measurement of grain

An automatic dispenser for mixed measurement of grain, the automatic dispenser comprising:

• a storage bin having a plurality of holes on a bottom surface and storing grains a main measurer having a plurality of main measurement compartments partitioned and rotatably installed at a position overlapping any one of the plurality of holes provided on the bottom surface of the storage bin;
• an auxiliary measurer having a plurality of auxiliary measurement compartments partitioned and installed at a position overlapping the rest of the plurality of holes provided on the bottom surface of the storage bin, the plurality of measurement compartments being installed to be rotatable only in one direction with respect to the main measurer;
• a measurer housing installed below the main measurer and the auxiliary measurer and having a discharge port discharging the grains introduced into the main measurer and the auxiliary measurer from the storage bin;
• and
• a motor rotating the main measurer in both directions,
• wherein only the main measurer is used or both the main measurer and the auxiliary measurer are used depending on a rotation direction of the motor.