Material crushing and screening device

The utility model discloses a material smashing and screening device which comprises a screening machine, a smashing machine is arranged on the screening machine, blades are arranged in the smashing machine, a smashing motor connected with a rotating shaft is arranged at the side end of the smashing machine, a feeding port is formed in the upper portion of the smashing machine, and a leaking net is arranged at the bottom of the smashing machine. The screening machine comprises a vibrating screen arranged in the screening machine, a material collecting box arranged on the side wall of the screening machine, a feeding mechanism arranged on the vibrating screen and a screening machine bottom plate, and a PLC. The output end of the PLC is connected with the input end of the feeding mechanism and the input end of the smashing motor. A vibration motor is arranged on the inner wall below the vibration screen, and the input end of the vibration motor is connected with the input end of a PLC. According to the utility