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AssigneeHitachi Shipbuilding & Engineering Co., Ltd.
InventorsMasahiko Yamamoto, Yoshinori Nishino, Masao Wada, Tomio Ebisu
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A centrifugal molding apparatus for manufacturing composite material pipes comprising a rotary mold and operating arm means extensible into and retractable from the rotary mold; the operating arm means having, in sequence from the front end thereof, a press roll portion for uniformalizing the interior of a pipe being molded, a first resin-liquid supply portion, a second resin-liquid supply portion, a chopped-strand supply portion, a third resin-liquid supply portion, a sand smoothing portion for smoothing sand supplied on to resin liquids, a sand supply portion, and a roving supply portion. According to the invention, the operating arm means have various functions, and by causing them to extend into and retract from the rotary mold one or more times it is possible to mold various kinds of composite material pipes efficiently.
A centrifugal molding apparatus for manufacturing composite material pipes comprising a rotary mold and operating arm means protrusible and retractable relative to said rotary mold, said operating arm means having, in sequence from the front end thereof, a press roll member for pressing the interior of a pipe being molded, a first resin-liquid dispenser, a second resin-liquid dispenser, a chopped-strand feeder, a third resin-liquid dispenser, a sand smoothing means for smoothing sand supplied on to resin liquids, a sand supply means, and a roving supply means, said sand supply means including a screw conveyor having an inlet end and a discharge end, said discharge end having a discharge port in a peripheral housing of said conveyor, and plural air nozzles so positioned as to cooperate with said discharge port to distribute sand over the surface of said mold.
Dependencies are inferred from the claim text.