Optical cable factice forming mould and factice extruding device

Abstract

The invention discloses a factice extruding device which belongs to a cable manufacturing technology. By utilizing a conventional water-resistant factice 'filling' mode, optical fibers in a sleeve can be extruded, the transmission performance is reduced and cable cores are even scrapped in a production process when the cable core diameter is slightly large or when fasten yarns are loose. The factice extruding device comprises a factice cavity, a cable core inlet mould, a factice filling mould and an optical cable factice forming mould, wherein the optical cable factice forming mould is formed by forming taper hole on a mould body with an integral taper tubular structure along an axial direction, the internal diameter of a taper hole inlet end is more than the internal diameter of a taper hole outlet end, and the small diameter end of the taper hole is used as a forming hole; and the mould body is made by spring steel, at least two slits are formed on the mould body along the axial direction and correspond to the forming hole, so that the forming hole has variability, the damage to the cable core is reduced when the cable core is slightly changed in diameter, and the cable core is well protected, so that the loss and production cost are lowered.

Description

technical field [0001] The invention belongs to the cable manufacturing technology, in particular to an optical cable ointment shaping mold and an ointment extruding device. Background technique [0002] The water seepage performance of the optical cable is an important item of the environmental performance of the optical cable and one of the important factors to ensure the life of the optical cable. It is an indicator that the optical cable manufacturers and operators are very concerned about. Because once the optical cable seeps into water, in a complex and changeable environment, the moisture and moisture outside the optical cable will penetrate and migrate to the optical cable, which will cause corrosion of metal parts, and then electrochemical hydrogen evolution, which will cause reversible or irreversible hydrogen damage to the optical fiber and affect the optical fiber. Life and long-term transmission stability. [0003] With the continuous development of optical cab...

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Problems solved by technology

[0006] The technical problem to be solved and the technical task proposed by the present invention are to overcome the extrusion of the optical fiber in the casing when the diameter of the cable core is slightly larger or the yarn is loose in the existing "filling" method of filling water-blocking ointment , lower transmission performance, or even scrape the cable core during the production process, provide an optical cable ointment shaping mold and ointment extrusion device

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