| 摘要 |
PURPOSE:To obtain the casting device suitable for producing insulators at high efficiency by a method in which molding raw material is poured into a molding part through feeding spaces, and after the pouring has been finished, a pouring port is closed by a pressurizing nozzle equipped separately, whereby the pouring nozzle is enabled to be removed from a mold. CONSTITUTION:The specified amount of raw material is poured into a molding part 2 through the flow path composed of a material feeding hose 6, a pouring nozzle 5, a pouring port 4 and a connecting port 3, pressurizing a raw material tank 8. After this pouring has been finished, a pressurizing nozzle 11 in pressurized state is pushed and moved in right direction in the figure by a cylinder 12, and closes the pouring port 4, cooperating with the pouring nozzle 5. Said nozzle 11 is simultaneously connected to the pouring port 4, whereby high pressure is applied into the molding part 2 by the pressure from the pressurizing nozzle 11. On one hand, at the pouring nozzle side, a valve 9 is closed. The pouring nozzle 5 is lowered by a cylinder 7 and is removed from the mold 1 and then is used for pouring into other mold.
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