METHOD FOR BLOWING AND PACKING MOLDING SAND INTO MOLDING FLASK

摘要

PROBLEM TO BE SOLVED: To provide a method for blowing and packing molding sand into a molding flask which is capable of executing packing by eliminating sand balls in the molding sand and eliminating the clogging of a sand blowing port or sand blowing nozzle with the sand. SOLUTION: This method for blowing and packing the molding sand into the molding flask comprises the steps of suspending and fluidizing the molding sand fed into a sand hopper by air, breading the sand balls by passing the molding sand through a sand ball cutter and blowing and packing the molding sand subjected to the breaking of the sand balls together with the air into a molding space.