| 摘要 |
<p>A device and a method of screening for individual balls are provided. The device for screening for individual balls has a supply device, a slope, and a recovering part jointed to a gas-tight chamber, and has a pressure reducing device for decompressing and maintaining the pressure of the gas-tight chamber lower than 1000 Pa in the gas-tight chamber. The supply device is used for supplying the balls, the slope is used for enabling the balls to roll down, and the recovering part is used for recovering the balls from the slope. Further, the method for screening for individual balls includes supplying the balls from the supply device to the slope, rolling the balls down the slope, screening for the balls according to the speed is difference and/or the direction difference of the balls, and recovering the balls in the recovering part, in the gas-tight chamber with the pressure below 1000 Pa.</p> |
