| 摘要 |
PURPOSE: A grinding device is provided to prevent the movement of bricks in a process of grinding because a grinder rotating at a high speed is mechanically stabilized. CONSTITUTION: A grinding device comprises jigs(53,55), a grinder(57), and a driving part(59). Jigs are placed in the bottom and the upper parts of the bricks. Jigs load the bricks in an erect state. The grinder is rotated in a fixed state and polishes the bricks. The driving part moves the bricks up and down towards the erect direction. |
