Material mixing equipment for precoated sand production

The utility model discloses material mixing equipment for precoated sand production, and relates to the technical field of precoated sand production. The material mixing equipment for precoated sand production comprises a heating box body, the top of the heating box body is fixedly connected with a motor, the top of the heating box body is fixedly connected with a storage hopper, the inner wall of the storage hopper is rotationally connected with a rotating rod A, the outer wall of the rotating rod A is fixedly connected with a circular partition plate, and an output shaft of the motor is fixedly connected with a rotating rod B; the outer wall of the rotating rod B is fixedly connected with a folding rod, the folding rod is hinged to the outer wall of a push rod, the outer wall of the push rod is fixedly connected with one end of a volute spiral spring, and the other end of the volute spiral spring is fixedly connected with the folding rod. And the resin is automatically and gradually added in batches, so tha