Patent ID: 6176296
Filing Date: 2001-01-23
Classification: B22C

Abstract:
An apparatus for pressing a sand mold for air-flow molding and air-impact molding, comprising:a squeeze board for pressing molding sand fed to a molding flask and an actuator for operating the squeeze board; anda molding flask having at least one bar that connects at least two sides of the molding flask,the squeeze board being positioned above the molding flask and comprising a pressing member and an actuator-connecting member; wherein the pressing member has at least one vent hole, is positioned below the actuator-connecting member and defines at least one groove which divides said pressing member into at least two pans, the groove being positioned and shaped such that it corresponds to the position and shape of the bar so that the bar can enter it, each of the parts of the pressing member being attached to the actuator-connecting member, andthe actuator being positioned above the squeeze board and connected to the actuator-connecting member so that the actuator vertically moves the squeeze board, thereby vertically moving each of the parts of the pressing member.