Sieve is put down back to clear big miscellaneous guipure earlier, big miscellaneous equipment is handled in traditional being used for mainly is guipure sieve and drum sieve, is guipure sieve outputgenerally 100 500th, is the drum sieve 50 150 th if the unprocessed food grains of per hour handling more than 200 tons then need more loaded down with trivial details configuration and higher energyconsumption, still need divide hookup accessories such as smooth ware between the equipment, the cost is then higher. This product includes bank of screens (1), hangs sieve case (2) through rocker (9), pendulum rod or wire rope in the bank of screens, and the sieve is equipped with big -and -middle miscellaneous guipure sieve (3) and little miscellaneous guipure sieve (4) in the case, and the sieve case is connected and put down back exercise machine structure (5) and constructs and provide the power supply that carries out circular motion in sieving the case for sieving the case through putting down back exercise machine, the both sides of big -and -middle miscellaneous guipure sieve and/or little miscellaneous guipure sieve pass through seal structure (6) and be connected with curb plate(22), in order to improve little miscellaneous screening effect, extra long sifting length, the lower part of big -and -middle miscellaneous guipure sieve be equipped with and lead grain mechanism (7), the entry of little miscellaneous guipure sieve be located the lower extreme of leading grain mechanism, make big -and -middle miscellaneous guipure sieve with little miscellaneous guipure and allconnect actuating mechanism (8), this product is used for the grain edulcoration.