| 摘要 |
PURPOSE:A rotatory ring in which the rotatory part and the stationary part rotate through the sliding part and the sliding part is made a double-layered structure of which the outer layer is made of a material with a higher friction coefficient than the inner layer, thus producing good-quality yarns with yarn breaks and fluff formation reduced. CONSTITUTION:The rotatory ring is formed by setting the stationary ring 5 with a shape corresponding to that of the sliding part 3 to the outside of the body of the rotor 4 that has the ring flange 1 at the top and is provided with the sliding part of a triangular, semicircular or reversed L-shaped cross section 3 on the outside of the body 2. The sliding part 3 is made a double-layered structure and the inner layer is made of a low-friction material such as teflon or a material improving wearing resistance such as mica or MoS2 or their mixture, a low friction material, whereas the outer layer 7 is made of a coating film of a resin such as silicone or ABS resin or a metal coating film such as Ni or Cu film. |
