Loose Tube Low Viscosity Fiber Paste Filling Technology

Abstract

The invention discloses a loose tube low-viscosity fiber paste filling process and relates to the field of optical communication optical cable manufacture. The process comprises the following steps: 1-12 color fibers are taken out; an extruding machine comprises an independent fiber paste filling die, and the low-viscosity fiber paste can be coated on the surfaces of the color fibers uniformly through the independent fiber paste filling die to form a color fiber beam coated with the low-viscosity fiber paste; the color fiber beam coated with the low-viscosity fiber paste and thermoplastic resin pass through the extruding machine together, the extruding machine carries out extrusion molding on the thermoplastic resin to form a loose tube, and the color fiber beam coated with the low-viscosity fiber paste is packaged in the loose tube to form a loose tube filled with the low-viscosity fiber paste; and the generated loose tube is placed into a water tank, and then, is subjected to step-by-step cooling through hot water, warm water and cold water. The process can realize one-time centring of an oil gun rack, reduces bubble content of the loose tube, improves swell condition of the loose tube, reduces production operation difficulty, improves production efficiency, ensures uniform external diameter of the generated loose tube and realizes small fluctuation.

Description

technical field [0001] The invention relates to the field of optical communication cable manufacturing, in particular to a low-viscosity fiber paste filling process for loose tubes. Background technique [0002] Fiber paste is a substance that must be filled in conventional optical fiber loose tubes to prevent moisture from invading the optical fiber and to mechanically lubricate and buffer the optical fiber. [0003] The traditional loose tube low-viscosity fiber paste filling process is that the low-viscosity fiber paste and the colored optical fiber pass through an oil gun bracket, and pass through the extruder together with the thermoplastic resin. When the thermoplastic resin is extruded into a loose tube, the surface of the colored optical fiber is coated. Cover with low viscosity fiber paste. The disadvantages of this traditional low-viscosity fiber paste filling process are that it is difficult to center the oil gun bracket, it is difficult to control and adjust the...

AI Technical Summary

Problems solved by technology

The disadvantages of this traditional low-viscosity fiber paste filling process are that it is difficult to center the oil gun bracket, it is difficult to control and adjust the filling amount of low-viscosity fiber paste, the coating layer of the loose tube is easy to form a bulge, the inner bubble content of the loose tube is large, and the loose tube The outer diameter of the tube fluctuates greatly, and the production efficiency is low

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