Multi-stage rubber particle screening device

The utility model provides a multistage rubber particle screening device which comprises a base, a vibration generating device is arranged on the base, a connecting rod is vertically arranged on the top of the vibration generating device, the top end of the connecting rod is connected with a first-stage screening disc, and the left side and the right side of the vibration generating device are each sequentially provided with a second-stage screening disc and a third-stage screening disc from top to bottom. A receding part extending front and back is arranged in the first-stage sieve tray, the receding part is located over the connecting rod and is not provided with sieve holes, an inclined connecting plate with the top inclined close to the vibration generating device is arranged on the side, close to the vibration generating device, of the second-stage sieve tray, and the second-stage sieve tray is fixed under the receding part through the inclined connecting plate. And a vertical connecting plate is arrange