▎ 摘　　要

NOVELTY - Covered yarn spinning device comprises core yarn (100) feeding mechanism, which is used to supply core yarn. The wrapped yarn feeding mechanism includes a frame and multiple wrapped yarn shafts arranged on one side surface of the frame. The center of the frame has a first hole extending along its own axis, and the frame rotates around its own axis. The wrapped yarn spool is used to supply the wrapped yarn, and the wrapped yarn spool is distributed at intervals in the circumferential direction around the axis of the frame. A wrapping yarn straightening mechanism, the wrapping yarn straightening mechanism includes a yarn guide. The wrapping yarn straightening mechanism rotates around its own axis, the yarn leader having multiple wrapping yarn guide holes, the wrapping yarn straightening The center of the mechanism has a second channel extending along its own axis. USE - Covered yarn spinning device. ADVANTAGE - The flame-retardant and arc-resistant covered yarn has excellent flame-retardant performance, and at the same time has excellent arc-resistant performance, and has excellent flexibility and durability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for following: (1) a method for forming flame-retardant and arc-resistant covered yarn, which involves using the covered yarn spinning device;taking polyimide fiber as the core yarn and modal graphene composite fiber as the outer yarn;supplying core yarn by the core yarn feeding mechanism, passing through the first channel and the second channel in sequence, and supplying core yarn in a straight direction;feeding outer covering yarn through the outer covering yarn yam shaft and then enters the yarn feeder, and driving wrapping yarn through wrapping yarn straightening mechanism to rotate relative to the core yarn and spirally wound around the core yarn through the yarn guide to form the flame-retardant arc-resistant wrapping yarn; and (2) a flame-retardant and arc-resistant covered yarn, which includes a core yarn and multiple wrapper yarns, the core yarn is polyimide fiber, where outer covering yarn is a modal graphene composite fiber, and multiple outer covering yarns are spirally wound on the outside of the core yarn, and the angle formed by the outer covering yarn and the axis direction of the core yarn is 30-60 degrees . DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of covered yarn spinning device. Core yarn (100) Modal fiber substrate (201) Graphene nano particles (202)