| 摘要 |
<p>The device has a fixed chute (3) comprising front wall (4) and rear wall (5) in arc of a circle placed at back side of a powder tank. A movable chute (6) is rotatively encased around the fixed chute, where the movable chute includes front wall (7) and rear wall (8) in arc of a circle at same center (9) as the walls of the fixed chute. A horizontal rotary device rotates around an axle (13) that is supported at its ends by side walls (14) of the mobile chute, where the device is formed of a hub (16) carrying powder distribution elements i.e. radial strips, at its periphery.</p> |
