AUGER SCREW, VERTICAL TYPE POWDER FILLING DEVICE AND METHOD FOR OPERATING THE SAME DEVICE

摘要

PROBLEM TO BE SOLVED: To realize stable constant amount conveyance and to enhance maintenance property by suppressing deposition of wet powder A onto an auger screw 40. SOLUTION: Surfaces of a shaft part 41 and an impeller part 42 of the auger screw 40 are subjected to low friction resin processing. Further, the powder A conveying surface 42a of the impeller part 42 is set to an angleθapproximated to an inclination angle (but an angle less than the inclination angle) that the specific powder A becoming a conveying object slides out against an angle datum line X passing through an apex of the impeller part 42 and vertically crossing a center line O of the shaft part 41. COPYRIGHT: (C)2005,JPO&NCIPI