Wrapping device used for circle conductor in middle and high voltage cable

The invention discloses a wrapping device used for a circle conductor in a middle and high voltage cable. The wrapping device comprises a stranding cage frame, a rotation shaft, a bearing mechanism, a large lead disk, a composite distribution head and an equant yarn head. A metal single thread successively penetrates through a through hole of a bearing, a lead wheel of a first small lead disk, a lead wheal of the large lead disk, a lead wheel of a second small lead disk and a through hole of the composite distribution head. A piece of water-blocking yarn successively penetrates through the through hole of the bearing, the lead wheel of the first small lead disk, the lead wheal of the large lead disk, the lead wheel of the second small lead disk, the through hole of the composite distribution head and a through hole of the equant yarn head. The stranding cage frame, the rotation shaft, the bearing, the large lead disk, the two small lead disks, the composite distribution head and the equant yarn head rotate at a high speed so as to successively strand the lead thread and the water-blocking yarn to the outer surface of a central lead thread, and a first lead layer, a second lead layer and a third lead layer are formed. The wrapping device is additionally provided with a water-blocking yarn device, and conductor gaps are uniformly filled with the water-blocking yarn, so that the water blocking effect of a conductor is realized.