Optical fiber loosening device

The invention relates to the technical field of optical fibers, and discloses an optical fiber loosening device. The device comprises a first fixed disc and a second fixed disc which are arranged in parallel at intervals; a plurality of supporting rods are arranged between the first fixed disc and the second fixed disc and distributed in the circumferential direction, and the two ends of each supporting rod are connected to the first fixed disc and the second fixed disc respectively. An output shaft of a driving unit is connected with a rotating shaft. One end of the rotating shaft sequentially penetrates through the first fixed disc and the second fixed disc and is detachably connected with the clamping assembly. The second fixed disc of the optical fiber loosening device can rotate relative to the first fixed disc; the outer diameter of the middle position of the roll core is reduced, the outer diameter of the end, close to the second fixed disc, of the roll core is also reduced, theoptical fiber on the sup