Invisible optical cable production process and coating equipment
A technology of invisible optical cable and production process, which is applied in the field of optical cable production, and can solve problems such as difficult conveying and spraying of coating glue, failure of continuous production of coverage, and short opening time of invisible optical cable, so as to avoid insufficient spray coverage and failure of continuous production, Achieve full-section spraying and continuous production, prolong the effect of setting time
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Embodiment 1
[0032] The invention discloses a production process of an invisible optical cable (see attached figure 1 ), including the following steps:
[0033] 1) Injection molding process of the transparent tight sleeve layer: injection molding covering the outer surface of the optical fiber with a transparent insulating material to form a transparent tight sleeve layer, and cooling;
[0034] 2) The initial mixing process of the rubber material: mix ethylene-ethyl acrylate copolymer, synthetic wax or petroleum-derived wax, and antioxidant, put it into an internal mixer and knead at 170 ° C, take it out and cool it, and obtain Primary rubber;
[0035] 3) The secondary mixing process of the rubber material: mix the cooled primary rubber material with the tackifier and other additives, put it into the internal mixer and mix it under the condition of 180°C, take it out and cool it, and obtain the high-grade rubber material ;
[0036] 4) Self-adhesive coating rubber mixing and extrusion pr...
Embodiment 2
[0041] The invention also discloses a production process of an invisible optical cable, comprising the following steps:
[0042] 1) Injection molding process of the transparent tight sleeve layer: injection molding covering the outer surface of the optical fiber with a transparent insulating material to form a transparent tight sleeve layer, and cooling;
[0043] 2) The initial mixing process of rubber materials: mix ethylene-ethyl acrylate copolymer, synthetic wax or petroleum-derived wax, and antioxidant, put them into an internal mixer and knead at 190°C, take them out and cool them down to obtain Primary rubber;
[0044] 3) The secondary mixing process of the rubber material: mix the cooled primary rubber material with the tackifier and other additives, put it into the internal mixer and mix it at 190°C, take it out and cool it, and obtain the high-grade rubber material ;
[0045] 4) Self-adhesive coating rubber mixing and extrusion process: mix the obtained high-grade rub...
Embodiment 3
[0048] Embodiment three: the present invention also discloses a kind of coating equipment used for the above-mentioned invisible optical cable production process (see attached figure 2 , 3 ), including: a heating box 2, which is used to melt the input granular self-adhesive coating glue into a liquid; a glue-coating guide 4, which coats the liquid on the outer surface of the transparent tight jacket layer of the optical fiber; an insulating tube 3, one end It is connected to the heating box 2, and the other end is connected to the glue-coated guide 4; the driving device 1 is used to drive the liquid in the heating box 2 to be input to the glue-coated guide 4 through the insulation pipe 3. By adopting this coating equipment and combining the above coating process and product features, the continuous coating on the surface of invisible optical cables of any length, as well as reel and bulk packaging are realized. In this embodiment, the granular self-adhesive coating glue is h...
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