Composite blowing control instrument for casting core

The utility model belongs to the technical field of casting molding core making, and particularly relates to a composite blowing control instrument for casting core making, which is characterized in that 2-3 air reservoirs are arranged in a shell side by side, the air reservoirs are connected or separated, and electric heaters and thermocouples which are arranged in the air reservoirs are respectively connected with a control system in a control box; an air inlet pipe, an air outlet pipe, a control valve and a flow sensor or a pressure sensor are arranged on the air storage cylinder, and a middle partition plate is arranged in the air storage cylinder; spiral flow guide fin plates are arranged on the inner wall of the air storage cylinder, and an air flow guide channel is formed between every two adjacent flow guide fin plates. The cold core box has the advantages that carbon dioxide, compressed air and the like used in a composite technology can be respectively controlled, the technical requirement for high