| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder molding apparatus capable of preventing clogging of material powder, and smoothly supplying the material powder even when cycle time is shortened, so that productivity is improved. SOLUTION: The inside of a feeder hose 21 is kept empty except at the time of feeding, by controlling feeding of fine particle powder from a hopper 22 to a feeder box 20 with an opening/closing valve 23, so that clogging of the fine particle powder in the feeder hose 21 is prevented. The level of the fine particle powder in the feeder box 20 is detected by a level sensor 26, and, based on the detected level, the opening/closing operation of the opening/closing valve 23 is controlled by a controller 25. Further, the opening/closing valve 23 is preferably controlled such that a void V is left in the upper part inside the feeder box 20 when feeding of the fine particle powder is completed. COPYRIGHT: (C)2008,JPO&INPIT
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