Sand bin with cooling function for lost foam casting

The invention belongs to the technical field of lost foam casting, and particularly relates to a sand bin with a cooling function for lost foam casting, the sand bin comprises a stirring mechanism arranged on a sand bin body, supporting frames are fixed to the outer walls of the lower portions of the two sides of the sand bin body, and a feeding hopper fixedly communicates with the top of the sand bin body; and the top of the sand bin body further fixedly communicates with two cooling fans, the stirring mechanism comprises a motor, a synchronous belt and stirring assemblies distributed at equal intervals, and a heat absorption mechanism is arranged on the back face of the sand bin body. The stirring mechanism and the two cooling fans are used in cooperation, hot casting sand added into the sand bin body is stirred through the stirring mechanism, then the hot casting sand can make uniform contact with cold air blown out by the cooling fans, and therefore the cooling uniformity and quality can be improved; and