| 摘要 |
The present invention relates to a grinding apparatus, comprising: a rotating disk (110); a fixed disk (120); and a case unit (130) for accommodating the rotating disk (110) and the fixed disk (120), wherein an object to be ground is introduced between grinding protrusion units (112, 122) disposed on each of the rotating disk (110) and the fixed disk (120), and ground. On surfaces of each of the rotating disk (110) and the fixed disk (120), which face each other, distribution space forming units (115, 125) disposed in a radial direction from a center of each of the rotating disk (110) and the fixed disk (120) and grinding protrusion units (112, 122) disposed from the distribution space forming units (115, 125) to edges of the rotating disk (110) and the fixed disk (120) in a radial direction and disposed on positions crossing with each other when the rotating disk (110) is rotated are formed, wherein the grinding protrusion units (112, 122) are a quadrangular pyramid shape. |
