| 摘要 |
PURPOSE: A sand spray apparatus of an industrial scrub brush is provided, to spray sand to the surface and inside of non-woven uniformly when an industrial scrub brush is manufactured. CONSTITUTION: The sand spray apparatus comprises a supply pipe(14) connected to the under part of a hopper(6); an impeller case(11) placed at the under part of the supply pipe; a connection pipe(13) connected to the supply pipe; a screw contained in the connection pipe(13); a screw drive motor(9) placed in the rear of the screw for rotating the screw; an impeller contained in the impeller case(11)l; an impeller drive motor(7) connected with the impeller by a drive belt(8); and a spray hose(12) connected to the under side part of the impeller case(11). |
