The automatic molding machine produces the burner of the gas stove, high efficiency and low cost, which is the dream of saving money for the boss. The working principle of the automatic molding machine is horizontal classification (convenient sand core under the burner), the upper and lower boxes are hydraulically compacted at the same time, the pressure is evenly applied, the weight loss of the product castings is small, and the automatic molding machine is put on the positioning pin. The box bottom box and the mold middle box are connected in series, and the single-station molding machine is fixed by four guide posts, thereby ensuring that the model is not misplaced.