| 摘要 |
PURPOSE:To efficiently grind works by turning a cone-shaped rotor in a stationary barrel to forcibly circulating the works. CONSTITUTION:A cone-shaped rotor 3 is centrally disposed on the bottom of a stationary barrel 1. Protruding stripes 3a are formed on the conical surface of the rotor 3. The rotation of the rotor 3 forcibly pushes up the works and grinding material along the conical surface and also along the inner circumference of the barrel 1 to forcibly circulate the works and the grinding material thus efficiently grinding the works. |
