▎ 摘　　要

NOVELTY - The device has a conveying unit whose end is connected with a first air supply piece and a second air supply piece. A cooling unit is provided with a mounting plate. The double pipes are arranged on the mounting plate along the composite fiber conveying direction with minimum inner diameter greater than the composite fiber diameter. A rotating air equalizing piece is used to rotate the rotating air equalizing piece for distributing wind force in an annular space between the double pipes on the mounting plate or on the double pipes. Multiple blades are connected with a lower end of the rotating air equalizing piece, where a tip of the blade extends to an outer side of the minimum inner diameter of the double pipe. USE - Single-layer graphene multifunctional composite fiber melt spinning device for use in medical fabric field. Can also be used in functional fabric, functional filler and medical fabric. ADVANTAGE - The device conveys uniform and non-fluctuation air to the cooling unit through the conveying unit to cool multiple composite fibers formed uniformly with better cooling effect, less deformation of the composite fibers and less wire drawing problems. The cooling unit blows out high-quality cooling air, which reduces the problem that the unstable cooling air blows the composite fiber and causes the composite fiber to swing and collide with the edge of the forming hole of the spinneret, thus affects the cross-sectional shape of the composite fiber. The device ensures the quality of composite fiber production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for producing a composite fiber by using a single-layer graphene multifunctional composite fiber melt spinning device. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a single-layer graphene multifunctional composite fiber melt spinning device. Spinneret plate (1) Cooling unit (2) Conveying unit (3) First air supply piece (4) First conveying roller (5) Machine frame (6) Composite fiber (7) Second air supply piece (41) Second conveying roller (51) Groove (511)