APPARATUS FOR MOLDING INORGANIC HYDRAULIC MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To prevent finishing accuracy of the surface from being spoiled caused by jetting of water content when a molded article is released and to prevent water content from entering into a releasing gas jetting hole by performing releasing the molded article consisting of an inorg. hydraulic material such as cement mortar and clay from the molding face of a mold by jetting a releasing gas from a releasing gas jetting hole provided on the molding face in relation to an apparatus for an inorg. hydraulic molded article. SOLUTION: Through-hole parts 4 for performing water squeezing and air suction of a molded article are provided on the molding face S1 of one of molds consisting of a top mold 1 and a bottom mold 2 and a releasing gas jetting hole 5 is provided on the molding face S2 of another mold and a rod valve 7 is inserted and arranged movably up and down in a gas feeding passage 6 to form a small diameter part 8a opening between a valve seat 6a through a gap K and a large diameter part 8b opening when the molded article is released and a gas introducing hole 13 and a water drainage hole 12 are respectively provided on the upstream side and the downstream side of the gas feeding passage.