| 摘要 |
PURPOSE:To prevent powder from brinding in the above-mentioned feed-in device for feeding power into a pneumatic air conveyor pipe, etc. by providing a bridge preventing arm on the extention of a screw shaft which is vertically planted at the lower end feed-out port of a hopper and which may be driven moderately and fastly. CONSTITUTION:When a screw shaft 3 is moderately and fastly rotated by means of a motor 11 and bevel g4ears 6, 11, an arm 4 is rotated. With this arrangement powder in a hopper 1 is stirred and is then fed out by the screw shaft 3. Accordingly, the bridge phenomenon of powder may be prevented and therefore, the powder is smoothly transferred. Further, a controlled automatic continuous operation under temperature control may be realized, similar to liquid or the like. |
