The invention discloses a cotton
fiber self-circulation continuous
cutting device, and the device comprises an electric stirrer, a
slurry tank, a
stator cutter, a
machine base, a cutter feeding and retracting support, a cutter feeding and retracting control mechanism, a rotor cutter driving mechanism, a rotor cutter and a
backflow pipe. An output shaft of the electric stirrer extends into the
slurry tank and is provided with stirring blades at the end part; cutter mounting holes are formed in positions, opposite to the stirring blades, of the
slurry tank; the
stator cutter is fixedly mounted on the inner circumference of the cutter mounting hole; the base is correspondingly positioned on one side of the slurry tank; the cutter feeding and retracting support is slidably mounted on the
machine base in the direction parallel to the axis of the cutter mounting hole. The rotor cutter is matched and meshed with the
stator cutter; one end of the return
pipe is communicated with the cutter mounting hole, and the other end is bent and extends into the slurry tank. The invention discloses a cotton
fiber self-circulation continuous
cutting device and a
cutting method. A stator cutter and a rotor cutter jointly realize cutting treatment on long cotton pulp fibers; in addition, continuous self-circulation cutting treatment of the slurry can be achieved through the arrangement of the
backflow pipe, and the production efficiency is improved.