| 摘要 |
A method and an apparatus for positioning a rotary knife of a cutter. An axial rod includes a roller bump formed on the position where the rotary knife unit is to be disposed. In this manner, the rotary knife unit and the roller bump can be engaged with each other, thereby affixing the rotary knife unit in position. By using a device that can precisely calculate the displacement, the rotary knife unit can be pushed to the position of the roller bump of the axial rod. In this manner, one can precisely control the separation of the rotary knife units, thereby enhancing the quality of paper cutting and the convenience of fabrication.
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