A large-core flexible optical fiber ribbon cable and its sheath processing device

Abstract

The invention discloses a flexible optical fiber ribbon optical cable with a large number of cores, which comprises a water blocking tape, a loose tube, an inner sheath, a middle sheath, and an outer sheath arranged from the inside to the outside, and the optical fiber ribbon matrix is ​​arranged on the loose tube Inside, multiple Kevlar fiber bundles are evenly arranged between the inner and outer walls of the loose tube. The invention can solve the technical problem that the existing large-core optical fiber ribbon cable cannot achieve extreme bending radius, and the tensile performance is poor at the same time, and because the strengthening core has a large bending internal stress in an extremely bending application environment, it will affect the optical cable. Structural integrity, and technical issues that may damage the optical fiber. The invention also discloses a middle sheath processing device for large-core flexible optical fiber ribbon cable, which includes an inner sheath, a driving screw, an auxiliary screw, galvanized straight steel wires, and a pair of pressing driving wheels engaged with each other.

Description

technical field [0001] The invention belongs to the technical field of optical communication transmission, and more specifically relates to a large-core flexible optical fiber ribbon cable and a sheath processing device therein. Background technique [0002] Large core count optical fiber ribbon cables have been widely used in big data centers. [0003] However, the existing large-core-count optical fiber ribbon cables generally have some defects that cannot be ignored: first, they cannot achieve extreme bending radii, and at the same time have poor tensile properties; second, the non-metallic strengthening cores they use are directional strengthening elements , the temperature sensitivity of the optical cable is poor when it is bent, resulting in a large bending internal stress of the strengthening core in the extreme bending application environment, which will affect the integrity of the optical cable structure and may damage the optical fiber; third, the plastic material ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a large-core flexible optical fiber ribbon cable and its sheath processing device, the purpose of which is to solve the problem that the existing large-core optical fiber ribbon cable cannot achieve extreme bending radius , at the same time, the technical problem of poor tensile performance, and the large bending internal stress of the strengthening core in the extreme bending application environment, resulting in technical problems that affect the integrity of the optical cable structure and may damage the optical fiber, and because the optical fiber sleeve The plastic material is generally made of high polymer, and its crystal phase change at high temperature or low temperature will lead to a change in the geometric size of the bent shape, which in turn will cause the technical problem of the macrobending phenomenon of the optical fiber

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