The utility model discloses a multi-layer vibrating screen for tea screening, which relates to the technical field of tea
processing and comprises a screening box, a feed inlet is arranged at the upper end of the screening box, a plurality of U-shaped frames are arranged inside the screening box, screening frames are arranged inside the U-shaped frames, and screening holes of the plurality of screening frames are sequentially reduced from top to bottom. A first connecting rod and a second connecting rod are arranged on the two sides of the U-shaped frame correspondingly, a spring is arranged at the end, away from the U-shaped frame, of the first connecting rod, a rotating shaft is arranged at the end, away from the U-shaped frame, of the second connecting rod, the surface of the rotating shaft is sleeved with a
cam, and a
servo motor is arranged at the end of the rotating shaft; a
discharge hole is formed below the box door; according to the
tea leaf screening device, the
cam is driven by the
servo motor to rotate, the
cam rotates to drive the screening frame to continuously shake left and right, tea leaves are screened, the tea leaves can be screened for multiple times through the multi-layer screening frame, the tea leaves are classified according to the sizes of the tea leaves, and the screening efficiency is improved.