Screening device

The utility model discloses a screening device, which is used for screening cut stems stored in a storage cabinet, and comprises a screening vibration groove, a feeding end of the screening vibration groove is connected with a discharging end of the storage cabinet, the screening vibration groove extends along a first direction, and a plurality of first screening holes are arranged on a conveying surface of the screening vibration groove; the feeding end of the screen is connected with the discharging end of the screening vibration groove, a plurality of second screening holes are formed in the screen, and the cross sectional area of the second screening holes is larger than that of the first screening holes; and the first conveying belt is arranged below the screen and used for conveying the cut stems. According to the cut stem screening device, scraps and cut stem clusters can be screened out in sequence, the risk of material blocking is reduced, cut stems meeting the requirement are conveyed to the next wo