Screening and filtering device for producing sweet potato starch noodles

The utility model discloses a screening and filtering device for producing sweet potato starch noodles. The screening and filtering device comprises a support, a transmission device and a screening and filtering plate, wherein a plurality of support rods are arranged on the top of the support in sequence; the screening and filtering plate is located below the support bars; two ends of the screening and filtering plate are respectively rotatably connected with the support bars by rotating shafts; a collecting frame is arranged below the screening and filtering plate; the transmission device comprises a motor, a connecting rod and a rocker arm; a transmission shaft is fixed on the connecting rod; two ends of the transmission shaft are respectively connected with a first idler wheel and a second idler wheel; the motor is fixedly connected with the first idler wheel; the second idler wheel is fixedly connected with a third idler wheel on the top of the connecting rod; one end of the rocker arm is connected with t