Screening and grading device for kidney bean peptide production

The utility model discloses a screening and grading device for kidney bean peptide production, and relates to the technical field of kidney bean peptide production. Comprising a base, a vibration table and a screening box, the screening box is installed in an installation groove in the top of the vibration table, a vibration motor is fixed to the center of the bottom of the vibration table, a first-stage screening plate and a second-stage screening plate are arranged in the screening box, and a plurality of screening holes are formed in the first-stage screening plate and the second-stage screening plate; three electric push rods are arranged on the supporting frame at intervals, the telescopic ends of the electric push rods extend into the screening box to be connected with push plates, the uppermost push plate is arranged above the first-stage screening plate, the middle push plate is arranged above the second-stage screening plate, and the lowermost push plate is arranged above the inner bottom wall of the