| 摘要 |
<P>PROBLEM TO BE SOLVED: To inexpensively provide a powder raw material supply device which prevents powder raw material stored in a raw material storage part from falling through a gap between a shaft and a bearing. <P>SOLUTION: In a powder raw material supply device 10 which rotates a canister auger 21 having a spiral blade 21b formed on its outer peripheral surface and discharges powder raw material stored in a storage container 11 and a carrying-out section 14 through a supply port 15, a bearing 14a is provided in a side wall of the carrying-out section 14 so that a shaft 21c of the canister auger 21 can penetrate the wall, and a spiral groove 21d is provided on the outer peripheral surface of the shaft 21c of the canister auger 21 which is in contact with the bearing 14a. By this structure, by rotating the canister auger 21, the powder raw material which enters into the gap can be taken into the spiral groove 21d and be pushed back into the carrying-out section 14. <P>COPYRIGHT: (C)2012,JPO&INPIT |
