Automatic screening machine

The utility model discloses an automatic screening machine, including box and base, the box top is equipped with the inlet pipe, be equipped with agitating unit in the inlet pipe, be equipped with first screen cloth in the box, second screen cloth and third screen cloth, be equipped with first discharge gate on the box, the second discharge gate, the third discharge gate, bottom half central authorities are equipped with the discharging pipe, be equipped with the fixed column on the base, adjust the post, the fixed column is fixed with the base, adjust the post vertical and with base screw -thread fit, be fixed with the horizontally hinge on the fixed column, be equipped with the horizontally back shaft on the regulation post, adjust capital end back shaft normal running fit, the hinge rotates with the bottom half to be connected, the bottom half is equipped with the direction spout. The beneficial effects of the utility model are that: adjust the post through the rotating, thereby it adjusts screening speed