Slice turning device and method

The invention provides a disk-turning method, which mainly vertically drops the disks from an inlet section of a turning device. And during the vertical dropping process, the disks are in contact in a support point in the turning device at the position deviating from the disk gravity center. The disks automatically turn to the other side opposite to the support point due to the gravity action and automatically turn 180 degrees due to the gravity action. The dropping direction of the disks from the inlet section into the turning device and the displacement direction of the disks when turning are in the same direction. The invention deviates from the gravity position by setting the support point, so that the disks turn depending on the support point due to the gravity action, thereby reaching the purpose of automatic turning by using the gravity and energy use saving.