| 摘要 |
PURPOSE:To feed a fixed quantity of powder in a stable manner, by installing at least more than two moving blades inside a feed hopper for the powder, while charging the powder at least two times into each receiving hole of a feed drum at more than two spots by each of these moving blades. CONSTITUTION:After being charged into each receiving hole 1 of a feed drum 2 from a feed hopper 3, powder is dropped down and fed to the inside of a vessel 5 at the lower part in regular sequence with intermittent rotation of the feed drum 2. In this case, the feed hopper 3 installs an opening 11 in its bottom part, and this opening 11 is formed into such a size capable of including at least two stop positions of the receiving hole 1 of the feed drum 2. And, at least more than two pieces of moving blades 41 and 42 are installed inside the feed hopper 3, making each tip adjoin the opening 11. Under this constitution, first powder is charged into the receiving hole 1 of the feed drum 2 situated in a position A by the moving blade 41, then the powder is charged into the same receiving hole 1 shifted to a position B, whereby at least two times the powder is charged into each receiving hole 1. |
