CN204405908U - All dielectric large core number high density micro-tube wiring optical cable - Google Patents
All dielectric large core number high density micro-tube wiring optical cable Download PDFInfo
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- CN204405908U CN204405908U CN201520028488.9U CN201520028488U CN204405908U CN 204405908 U CN204405908 U CN 204405908U CN 201520028488 U CN201520028488 U CN 201520028488U CN 204405908 U CN204405908 U CN 204405908U
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Abstract
The utility model relates to all dielectric large core number high density micro-tube wiring optical cable, belong to optical communication fiber optic cable manufacture technical field, it is a kind of data communication optical cable, adapt to the multiple laid condition such as yard piping, built on stilts, road surface, the environment such as long distance communication, interoffice communication, outdoor introducing can be used as; The type optical cable has the advantages such as core number is large, external diameter is little, tensile strength is high, lateral pressure resistant ability is strong, block-water effect good, good bending property, easily construction, easily difference.By waterproofing type optical fiber microtubule, large line density water blocking yarn, waterstop, fiberglass-reinforced plastic lever, aramid fiber, tear rope, oversheath forms; Waterproofing type optical fiber microtubule is twisted into waterproofing type optical fiber microtubule cable core, waterproofing type optical fiber microtubule cable core outside uses double-sided insulation type waterstop to carry out vertical bag, and adopt high strength aramid fiber and tear rope and make reinforcement, outer use two parallel reinforcements of fiberglass-reinforced plastic lever are inner at oversheath, strengthen its tensile property.
Description
Technical field
What the utility model all dielectric large core number high density micro-tube wiring optical cable related to is, and a fiber number is intensive, cable size miniaturization, bending property are excellent, the pipeline wiring optical cable of construction summary, its basic fiber unit adopts the flexible tube based on American-European advanced design theory, and it is domesticized comprehensively, be applicable to backbone optical cable wiring or outdoor introducing wiring, laid condition is unrestricted, in the domestic and international medium-and-large-sized city of being becoming tight earth's surface working sources day, especially suitable in pipeline laying mode.This optical cable, outside the transmission performance needed for satisfied communication, has also taken into account great resistance to side pressure performance, section block-water performance, and effectively improves site operation efficiency by unique optical fiber jacket.
Background technology
Along with the productive life of people is unprecedentedly surging for the consumption demand of information, Fibre Optical Communication Technology is applied on a large scale in every field, the continuous maturation of information transmission correlation technique on the one hand, make information can become possibility with higher rate and more stable performance in dedicating information consumption main body to, another aspect information is also not only play a part merely to promote people's work efficiency and quality of life, time more, information mean better economic benefit fast and accurately.Informationalized deep, bring the very big demand that optical cable is increased progressively gradually.
For a long time, backbone optical cable (comprising trunk cable) is substantially all played a leading role by outdoor ordinary optical cable, its fiber unit used is the PBT Loose tube containing large core number optical fiber or fibre ribbon, along with the propelling of global intelligent acess business, Fiber Node is more and more nearer to user, especially in recent years the FTTH Large scale construction of Southeast Asia, East Asia Region starts, and these optical cables based on PBT Loose tube (typical in layer-twisted type, central tube cable) present some unavoidable drawbacks gradually.First be size, the outdoor ordinary optical cable size of 144 cores is minimum at about 15.5mm, along with the propelling of city broadband light networking, earth's surface is laid resource and is petered out, and conduit resource also day is becoming tight, in some large size cities of America and Europe, the optical cable in a underground pipeline has reached up to a hundred, the expense of pipeline lease is also according to renting the size in space and differing widely, so the outside dimension of outdoor optical cable develops must present miniaturization, miniaturization trend;
Secondly, when the incoming end of a lot of cities optical fiber ring network is constructed, traditional outdoor optical cable demonstrates many drawbacks gradually.Optical cable baring is the first step of carrying out the construction behaviors such as welding, generally need during common outdoor optical cable stripping to use the professional tools such as wallpaper cutter, diagonal cutting pliers, optical cable cutter, when cutting sheath and PBT pipe, be easy to hurt finger and optical fiber, with certain potential safety hazard, and work efficiency is lower;
PBT pipe always can side direction protection internal optical fiber and famous well with its harder tube wall, but under holding in construction the area surroundings become increasingly complex, because quality is harder, bending radius less than normal can not be born on the contrary, be very easy to occur Loose tube breakage phenomenon, fibercuts is caused time serious, in this case, even if optical fiber is continuous, the bending property that the G652D optical fiber that yet can use because of outdoor ordinary optical cable is not outstanding and cause decaying in a flexed condition according increase, when transmission range is longer, affect the open-minded of client traffic, and constructed residual optical cable can the implicit optical fiber attenuation therefore caused increases because PBT pipe shrinks risk when storing in fiber distribution box, especially when mid-span access.
Summary of the invention
The utility model object is for above-mentioned weak point, a kind of all dielectric large core number high density micro-tube wiring optical cable is provided, micro optical cable in the utility model has the little advantage of outside dimension (288 core external diameters are only about 14.5mm), be highly advantageous to and connect up at small space, from improving urban duct space availability ratio to the full extent, through Data Collection comparison, relative to common outdoor optical cable, adopt such micro optical cable to carry out pipeline utilization factor that pipeline wiring can improve 70% in theory, and the size of miniaturization can less utilize space resources in fiber distribution box,
Fiber unit adopts optical fiber microtubule to replace PBT Loose tube, and can remove sheath by two finger forces easily without the need to professional stripping instrument, operating efficiency can improve 33% in theory, effectively reduces laid down cost;
Fiber unit is very soft, and bending property is fabulous, adopts bend insensitive fiber to effectively reduce bending radius, ensures optical fiber attenuation, and under less bending radius, surface smoothing still can be kept without folding line.
The utility model all dielectric large core number high density micro-tube wiring optical cable takes following technical scheme to realize:
All dielectric large core number high density micro-tube wiring optical cable by waterproofing type optical fiber microtubule, large line density water blocking yarn, waterstop, fiberglass-reinforced plastic lever (FRP), aramid fiber, tear rope, oversheath forms; Waterproofing type optical fiber microtubule is twisted into waterproofing type optical fiber microtubule cable core, waterproofing type optical fiber microtubule cable core outside uses double-sided insulation type waterstop to carry out vertical bag, and adopt high strength aramid fiber and tear rope and make reinforcement, the parallel reinforcement of outer use two fiberglass-reinforced plastic levers (FRP) is inner at oversheath, strengthens its tensile property.
With waterproofing type optical fiber microtubule for elementary cell, when relating to many waterproofing type optical fiber microtubules, waterproofing type optical fiber microtubule cable core is twisted into it, it is coated that waterproofing type optical fiber microtubule cable core outside employing double-sided insulation type waterstop carries out longitudinal direction, and carry out bundle yarn with Minimal Tension and fix, completely coated to make cable core be able to, in a fairly large number of situation of waterproofing type optical fiber microtubule, also need to add several large line density water blocking yarn stranded to guarantee overall block-water effect together; Its quantity is determined according to actual water blocking test situation.
For strengthening the tensile property of overall optical cable, at oversheath internal layer, require add several aramid fiber (kevlar fiber) and tear rope (1-2 root) according to concrete force value, and suitably need increase by 1 ~ 2 large line density water blocking yarn to ensure overall block-water performance in aramid fiber (kevla fiber) according to overall optical cable water-blocking test situation.
Oversheath adopts high density polyethylene, adds two fiberglass-reinforced plastic lever FRP and carries out parallel reinforcement, effectively increase optical cable tensile performance in wale-wise in oversheath, and surface of outer sheath can carry out character spray printing according to user's requirement or block is carved characters.
Waterproofing type optical fiber microtubule quantity increases according to cage pay off rack quantity, select 24,36,48, the inner every root unit of optical cable of core number more than 12 is 12 core waterproofing type optical fiber microtubule unit, and the optical cable inner waterproofing type optical fiber microtubule unit of core number less than 12 can select often pipe 12 core, 8 cores, 6 cores, 4 cores, 2 cores, 1 core.
Described waterproofing type optical fiber microtubule is made up of sheath, colored optical fiber, fine cream or water blocking yarn.
Colored optical fiber in described waterproofing type optical fiber microtubule adopts 1 ~ 12 core, and carry out fiber unit inner core number and the adjustment of fiber unit number according to overall Cable Core Number difference, concrete method for making is aftermentioned.
Waterproofing type optical fiber microtubule cable core in the utility model optical cable relates to different colored optical fiber core number, comprise 12 cores, 24 cores, 36 cores, 48 cores, 96 cores, 144 cores, 288 cores, the inner different waterproofing type optical fiber microtubule of optical cable uses different colours to distinguish, waterproofing type optical fiber microtubule quantity adopts with regard to needs more than 12 and distinguishes at the outside spray printing black of tube wall (or white) designation strip, different according to core number, each concrete model cable outer diameter is different, and its method for making is similar.
Cable outer sheath in the utility model adopts high density polyethylene, this material is very applicable for outdoor environment, it large pulling strengrth possessed, lateral pressure resistant, shock resistance and the less appearance coefficient of sliding friction, ensure that optical cable especially possesses excellent tensile toughness when carrying out pipeline laying, frictional resistance is little and pipeline handling capacity is strong, chemical stability good, the advantage such as low temperature resistant, long service life.
In oversheath, add two fiberglass-reinforced plastic levers (FRP) carry out parallel reinforcement, effectively increase optical cable tensile performance in wale-wise, jacket surface can carry out character spray printing according to user's requirement or block is carved characters.
All dielectric large core number high density micro-tube wiring optical cable method for making is as follows:
1, the making of waterproofing type optical fiber microtubule
Get out multi-core fiber pay off rack, be used in the laying tension of line tension testing tool to each optical fiber pay-off rack to test, regulate, optical fiber laying tension is adjusted to 40 ~ 50g, and the laying tension of each road optical fiber pay-off rack must guarantee that unanimously deviation is no more than 5 ‰;
According to different fiber core number, select suitable tubular molding tool to carry out extrusion molding, the overall circumference external diameter of N root optical fiber is approximately 90 ~ 95% of this core number waterproofing type optical fiber microtubule diameter, and pipe thickness is 0.1 ~ 0.2mm about, adopts thermoplastic elastic material extrusion molding to form.
Many colored optical fibers are from optical fiber pay-off rack, symmetrical, uniformly across ceramic Go-over mould, according to practical condition, optical fiber twisting pitch is controlled to be 40 ~ 60cm, after stranded, entirety enters fine cream heating chamber, fine cream heating chamber carries out 50 ~ 60 DEG C of continuous heatings, insulation to fine cream, it is adjustable that fine cream extracts speed, certain pressure is formed in heating chamber space by fine cream supply endlessly, strengthened mobility, the tack of fine cream by above behave, make optical fiber go out heating chamber rear surface and evenly scribble fine cream.The object of this step is that fine cream is filled with in pipe in large quantities, makes microtubule to meet the requirement that blocks water by the water repellency of fine cream;
For the specific demand of individual clients, as dry type blocks water, so this processing step is just without the need to fine cream heating chamber, but change to the water blocking yarn that use 1 ~ 2 line density is minimum, expansivity is high, optical fiber carry out stranded after, combine into extruder head, carry out sheath.
The outer sheath material of waterproofing type optical fiber microtubule should adopt the thermoplastic olefin possessing certain tensile strength, extrusion temperature 180 DEG C ~ 200 DEG C, regulates the dish tool takeup tension of take-up stand, makes it to reach 1 ~ 1.5N, use the take-up of vinyl disc tool, make waterproofing type optical fiber microtubule.
2, sheath operation
First testing, regulate multicore cage pay off rack tension force, is 0.8 ~ 1N by cage pay off rack tension adjustment;
Waterstop is adopted to be carried out vertical bag, double-sided insulation type waterstop is fixing on waterstop pay off rack, and the polyester bundle yarn that line density is 1100dtex is arranged on bundling machine, bundle yarn governor is set to 80 ~ 120mm, and yarn-binding tension is set to 0.2N ~ 0.5N;
By polydisc waterproofing type optical fiber microtubule unit according to color sequences, load onto cage pay off rack, at the uniform velocity pull out from guide wheel, through vertical bag bundling machine, aramid fiber machine, to extruding machine machine head Go-over mould, place fixes;
Fixed on aramid fiber machine by aramid fiber, aramid fiber twisting pitch regulator is set to 350 ~ 450mm, and aramid fiber Tensity size is set to 2 ~ 5N;
Two fiberglass-reinforced plastic lever (FR) reinforcements are arranged on the special pay off rack of FRP, regulate its laying tension to 4N ~ 10 N, at the uniform velocity involve, be fixed on Go-over mould place;
The good extruded mould of device, this structure optical cable adopts half tubular molding tool;
Oversheath adopts HDPE material, extrusion temperature is arranged 180 ~ 230 DEG C, first segment bosh temperature is arranged 40 ~ 60 DEG C, second section bosh adopts normal temperature 20 ~ 25 DEG C, the FRP of two parallel reinforcements is imported core rod together with aramid fiber reinforcement, waterproofing type optical fiber microtubule cable core and two are torn rope and combines importing core rod, open cage, waterproofing type microtubule cable core is carried out stranded, twisting pitch is adjusted to 300 ~ 500mm, open aramid fiber machine, aramid fiber twisting pitch is adjusted to 100 ~ 200mm, open bundling machine simultaneously, waterstop is even, intactly indulge and wrap in waterproofing type optical fiber microtubule cable core surface, again carry out tension force (or pitch) fine setting according to actual conditions simultaneously, make waterproofing type optical fiber microtubule surface without obviously pricking trace.
Open extruding machine, carry out extruding oversheath, regulate oversheath concentricity, be extruded with the optical cable of oversheath, through first segment bosh and the cooling of second section bosh, draw to take-up place, and upper dish carries out finished product production, namely make all dielectric large core number high density micro-tube wiring optical cable.
Check all dielectric large core number high density micro-tube wiring optical cable finished product overall appearance size and lettering situation, check and completely can make finished product around upper full treucher tool.
All dielectric large core number high density micro-tube wiring optical cable and preparation method thereof beneficial effect:
The low-smoke halide-free fireproof composite polyolefine material that employing thermoplastic olefin replaces outdoor optical cable PBT Loose tube and inside cable to commonly use, can block water with absolutely dry form, also can refuse water form and block water by fine cream, possess highly soft, not easily bend, size is little, be easy to the clear superiority such as stripping, operating efficiency raising;
Adopt double-sided insulation type waterstop to carry out vertical bag optical cable core, be compared to the outdoor ordinary optical cable cable cream form that blocks water more clean, and effectively can eliminate the problem such as liberation of hydrogen, cable core displacement, piston effect that traditional cable cream brings;
Unique small size makes urban duct utilization factor on average improve 70%, effectively reduces construction laid down cost;
Construct safer, and overall optical cable baring instrument is single, portable;
This structure optical cable, compares original outdoor ordinary optical cable production process and obtains great simplification, effectively can reduce production cost under mass production conditions;
In conjunction with bending not clear photosensitive fibre, this product possesses excellent bending property, adapts to various construction and lays environment;
Overall end face blocks water, and meets IEC60794-1-2, and meets method electricity 168h infiltration requirement.
The utility model relates to all dielectric large core number high density micro-tube optical cable and preparation method thereof is a kind of data communication optical cable, adapt to the multiple laid condition such as yard piping, built on stilts, road surface, the environment such as long distance communication, interoffice communication, outdoor introducing can be used as; The type optical cable has the advantages such as core number is large, external diameter is little, tensile strength is high, lateral pressure resistant ability is strong, block-water effect good, good bending property, easily construction, easily difference.
Accompanying drawing explanation
Below with reference to accompanying drawing, the utility model is described in further detail:
The fine cream waterproofing type of waterproofing type optical fiber microtubule cell schematics 1(of Fig. 1 all dielectric large core number high density micro-tube wiring optical cable).
The waterproofing type optical fiber microtubule cell schematics 2(dry type waterproofing type of Fig. 2 all dielectric large core number high density micro-tube wiring optical cable).
Fig. 3 all dielectric large core number high density micro-tube wiring optical cable schematic diagram.
Embodiment
With reference to accompanying drawing 1 ~ 3, all dielectric large core number high density micro-tube wiring optical cable by waterproofing type optical fiber microtubule 1, large line density water blocking yarn 2, waterstop 3, fiberglass-reinforced plastic lever (FRP) 4, aramid fiber 6, tear rope 5, oversheath 7 forms; Waterproofing type optical fiber microtubule 1 is twisted into waterproofing type optical fiber microtubule cable core, waterproofing type optical fiber microtubule cable core outside uses double-sided insulation type waterstop 3 to carry out vertical bag, and adopt high strength aramid fiber 6 and tear rope 5 and make reinforcement, the parallel reinforcement of outer use two fiberglass-reinforced plastic levers (FRP) 4 is inner at oversheath 7, strengthens its tensile property.
With waterproofing type optical fiber microtubule 1 for elementary cell, when relating to many waterproofing type optical fiber microtubules 1, waterproofing type optical fiber microtubule cable core is twisted into it, it is coated that waterproofing type optical fiber microtubule cable core outside employing double-sided insulation type waterstop 3 carries out longitudinal direction, and carry out bundle yarn with Minimal Tension and fix, completely coated to make cable core be able to, in a fairly large number of situation of waterproofing type optical fiber microtubule, also need to add several large line density water blocking yarn stranded to guarantee overall block-water effect together; Its quantity is determined according to actual water blocking test situation.
For strengthening the tensile property of overall optical cable, at oversheath internal layer, require add several aramid fiber (kevlar fiber) and tear rope (1-2 root) according to concrete force value, and suitably need increase by 1 ~ 2 large line density water blocking yarn 2 to ensure overall block-water performance in aramid fiber (kevla fiber) according to overall optical cable water-blocking test situation.
Oversheath 7 adopts high density polyethylene, adds two fiberglass-reinforced plastic levers (FRP) 4 and carries out parallel reinforcement, effectively increase optical cable tensile performance in wale-wise in oversheath 1, and oversheath 7 surface can carry out character spray printing according to user's requirement or block is carved characters.
Waterproofing type optical fiber microtubule 1 quantity increases according to cage pay off rack quantity, select 24,36,48, the inner every root unit of optical cable of core number more than 12 is 12 core waterproofing type optical fiber microtubule unit, and the optical cable inner waterproofing type optical fiber microtubule unit of core number less than 12 can select often pipe 12 core, 8 cores, 6 cores, 4 cores, 2 cores, 1 core.
Described waterproofing type optical fiber microtubule 1 is made up of sheath 1-1, colored optical fiber 1-2, fine cream 1-3 or water blocking yarn 1-4.
Colored optical fiber in described waterproofing type optical fiber microtubule 1 adopts 1 ~ 12 core, and carry out fiber unit inner core number and the adjustment of fiber unit number according to overall Cable Core Number difference, concrete method for making is aftermentioned.
Waterproofing type optical fiber microtubule cable core in the utility model optical cable relates to different colored optical fiber 1-2 core number, comprise 12 cores, 24 cores, 36 cores, 48 cores, 96 cores, 144 cores, 288 cores, an inner different waterproofing type optical fiber microtubule 1 of optical cable uses different colours to distinguish, waterproofing type optical fiber microtubule quantity adopts with regard to needs more than 12 and distinguishes at the outside spray printing black of tube wall (or white) designation strip, different according to core number, each concrete model cable outer diameter is different, and its method for making is similar.
Cable outer sheath 7 in the utility model adopts high density polyethylene, this material is very applicable for outdoor environment, it large pulling strengrth possessed, lateral pressure resistant, shock resistance and the less appearance coefficient of sliding friction, ensure that optical cable especially possesses excellent tensile toughness when carrying out pipeline laying, frictional resistance is little and pipeline handling capacity is strong, chemical stability good, the advantage such as low temperature resistant, long service life.
In oversheath 7, add two fiberglass-reinforced plastic levers (FRP) carry out parallel reinforcement, effectively increase optical cable tensile performance in wale-wise, jacket surface can carry out character spray printing according to user's requirement or block is carved characters.
All dielectric large core number high density micro-tube wiring optical cable method for making is as follows:
1, the making of waterproofing type optical fiber microtubule
Get out multi-core fiber pay off rack, be used in the laying tension of line tension testing tool to each optical fiber pay-off rack to test, regulate, optical fiber laying tension is adjusted to 40 ~ 50g, and the laying tension of each road optical fiber pay-off rack must guarantee that unanimously deviation is no more than 5 ‰;
According to different fiber core number, select suitable tubular molding tool to carry out extrusion molding, the overall circumference external diameter of N root optical fiber is approximately 90 ~ 95% of this core number waterproofing type optical fiber microtubule diameter, and pipe thickness is 0.1 ~ 0.2mm about, adopts thermoplastic elastic material extrusion molding to form.
2 ~ 12 colored optical fibers are from optical fiber pay-off rack, symmetrical, uniformly across ceramic Go-over mould, according to practical condition, optical fiber twisting pitch is controlled to be 40 ~ 60cm, after stranded, entirety enters fine cream heating chamber, fine cream heating chamber carries out 50 ~ 60 DEG C of continuous heatings, insulation to fine cream, it is adjustable that fine cream extracts speed, certain pressure is formed in heating chamber space by fine cream supply endlessly, strengthened mobility, the tack of fine cream by above behave, make optical fiber go out heating chamber rear surface and evenly scribble fine cream.The object of this step is that fine cream is filled with in pipe in large quantities, makes microtubule to meet the requirement that blocks water by the water repellency of fine cream;
For the specific demand of individual clients, as dry type blocks water, so this processing step is just without the need to fine cream heating chamber, but change to the water blocking yarn that use 1 ~ 2 line density is minimum, expansivity is high, optical fiber carry out stranded after, combine into extruder head, carry out sheath.
The outer sheath material of waterproofing type optical fiber microtubule should adopt the thermoplastic olefin possessing certain tensile strength.For 12 core fibre microtubules, external diameter 1.4 ~ 1.5mm, internal diameter is about 1.11mm, wall thickness 0.1 ~ 0.2mm, and according to joining modeling method theory calculate, core rod adopts 1.2mm/1.7mm (core rod inner/outer diameter), and die sleeve endoporus adopts 2.3 ~ 2.4mm.
Regulate the dish tool takeup tension of take-up stand, make it to reach 1 ~ 1.5N, use the take-up of vinyl disc tool, make waterproofing type optical fiber microtubule 1.
2, sheath operation
First testing, regulate multicore cage pay off rack tension force, is 0.8 ~ 1N by cage pay off rack tension adjustment;
For 48 core optical cables, through technology Calculation, the waterstop of 16 ~ 20mm width is needed to be carried out vertical bag, double-sided insulation type waterstop is fixing on waterstop pay off rack, and the polyester bundle yarn that line density is 1100dtex is arranged on bundling machine, bundle yarn governor is set to 80 ~ 120mm, and yarn-binding tension is set to 0.2N ~ 0.5N;
By polydisc waterproofing type optical fiber microtubule unit according to color sequences, load onto cage pay off rack, at the uniform velocity pull out from guide wheel, through vertical bag bundling machine, aramid fiber machine, to extruding machine machine head Go-over mould, place fixes;
For 48 core optical cables, fixed by aramid fiber on aramid fiber machine, aramid fiber twisting pitch regulator is set to 350 ~ 450mm, and aramid fiber Tensity size is set to 2 ~ 5N;
Two fiberglass-reinforced plastic lever (FRP) reinforcements are arranged on the special pay off rack of FRP, regulate its laying tension to 4N-10 N, at the uniform velocity involve, be fixed on Go-over mould place;
The good extruded mould of device, this structure optical cable adopts half tubular molding tool, for 48 core optical cables, 4 waterproofing type optical fiber microtubule unit, the stranded rear external diameter of water blocking yarn that center adds a large line density is about 3.5mm, and after using 16mm waterstop to carry out vertical bag, bundle yarn, external diameter is about 4.0mm, after aramid fiber unwrapping wire, cable core entire outer diameter is about 4.3 ~ 4.8mm, and optical cable wall thickness 1.4 ~ 1.6mm(48 core optic cable design is parallel reinforcement in two 0.8mmFRP sheaths), cable outer diameter is 8.0mm ± 5%; Adopt 5.4mm/6.8mm (core rod inner/outer diameter) according to the concrete Size calculation core rod of above optical cable, die sleeve endoporus adopts 10.0mm;
Oversheath adopts high density polyethylene (HDPE) material, extrusion temperature is arranged 180 ~ 230 DEG C; First segment bosh temperature is arranged 40 ~ 60 DEG C, second section bosh adopts normal temperature 20 ~ 25 DEG C, the fiberglass-reinforced plastic lever (FRP) of two parallel reinforcements is imported core rod together with aramid fiber reinforcement, waterproofing type optical fiber microtubule cable core and two is torn rope and combines importing core rod.Open cage, waterproofing type microtubule cable core is carried out stranded, twisting pitch is adjusted to 300 ~ 500mm, open aramid fiber machine, aramid fiber twisting pitch is adjusted to 100 ~ 200mm, opens bundling machine simultaneously, waterstop evenly, is intactly indulged wrapping in waterproofing type optical fiber microtubule cable core surface, again carrying out tension force (or pitch) fine setting according to actual conditions simultaneously, making waterproofing type optical fiber microtubule surface without obviously pricking trace.
Open extruding machine, carry out extruding oversheath, regulate oversheath concentricity, be extruded with the optical cable of oversheath, through first segment bosh and the cooling of second section bosh, draw to take-up place, and upper dish carries out finished product production, namely make all dielectric large core number high density micro-tube wiring optical cable.
Check all dielectric large core number high density micro-tube wiring optical cable finished product overall appearance size and lettering situation, check and completely can make finished product around upper full treucher tool.
With reference to accompanying drawing 1, accompanying drawing 2, all dielectric large core number high density micro-tube optical cable by waterproofing type optical fiber microtubule unit 1, large line density water blocking yarn 2, waterstop (pricking yarn containing surperficial polyester) 3, fiberglass-reinforced plastic lever (FRP) 4, tear rope (× 2) 5, aramid fiber 6, oversheath 7 form.
The waterproofing type optical fiber microtubule unit 1 of all dielectric large core number high density micro-tube optical cable is only limitted to dry type waterproofing type optical fiber microtubule by sheath 1-1, colored optical fiber 1-2, fine cream 1-3, water blocking yarn 1-4() form;
With waterproofing type optical fiber microtubule for elementary cell, when relating to many waterproofing type optical fiber microtubule unit 1, waterproofing type optical fiber microtubule cable core is twisted into it, it is coated that waterproofing type optical fiber microtubule cable core outside employing double-sided insulation type waterstop 3 carries out longitudinal direction, and carry out bundle yarn with Minimal Tension and fix, completely coated to make cable core be able to, in a fairly large number of situation of waterproofing type optical fiber microtubule, also need to add several high linear density water blocking yarn 2 stranded to guarantee overall block-water effect together;
At oversheath 7 internal layer, require to add several aramid fiber (kevlar fiber) 6 according to concrete force value, and suitably need increase by 1 ~ 2 water blocking yarn to ensure overall block-water performance in aramid fiber (kevla fiber) 6 according to overall optical cable water-blocking test situation.
Oversheath 7 adopts high density polyethylene, adds two fiberglass-reinforced plastic levers (FRP) 4 and carries out parallel reinforcement, effectively increase optical cable tensile performance in wale-wise in oversheath 7, and jacket surface can carry out character spray printing according to user's requirement or block is carved characters.
Waterproofing type optical fiber microtubule element number increases according to cage pay off rack quantity, select 24,36,48, the inner every root unit of optical cable of core number more than 12 is 12 core waterproofing type optical fiber microtubule unit, and the optical cable inner waterproofing type optical fiber microtubule unit of core number less than 12 can select often pipe 12 core, 8 cores, 6 cores, 4 cores, 2 cores, 1 core.
The overall radical can selecting waterproofing type optical fiber microtubule unit according to cage number of devices situation of optical cable, maximum core number at present through actual tests is 288 cores, namely use 24 waterproofing type optical fiber microtubule unit to carry out stranded, vertical bag, stranding sheath, the mode that waterproofing type optical fiber microtubule unit adopts extrusion molding 12 kinds of colors to add colour circle is distinguished.
example
The method for making of all dielectric large core number high density micro-tube optical cable, sincerely for 288 cores.
Waterproofing type optical fiber microtubule Unit Design, according to the design, is 12 cores/pipe * 24 by 288 core optical cables.
1,12 core waterproofing type optical fiber microtubule unit 1 are produced
Get out 12 core fibre pay off racks, test each optical fiber pay-off rack laying tension, adjust, unification is adjusted to 40 ~ 50g, and every root optical fiber laying tension need strictly be guaranteed unanimously;
By the ceramic cable-through hole of optical fiber through stranded equipment, through fine cream heating chamber, draw and fix to head place;
Select 12 core waterproofing type optical fiber micro-pipe moulds to carry out extrusion molding, sheath material selects thermoplastic olefin's material, regulates concentricity inside and outside sheath, external diameter, wall thickness, and 12 core waterproofing type optical fiber microtubule external diameters are adjusted to 1.35 ~ 1.45mm, wall thickness 0.15 ~ 0.2mm;
Optical fiber is imported extrusion die, draws to take-up stand place, adjustment takeup tension to 1 ~ 1.5N, plays stranded and fine cream simultaneously and is filled with facility switching, and the stable dish of can going up of external diameter is produced.
2, sheath is produced
Testing 24 cage pay off rack tension force, is 0.8 ~ 1N by cage pay off rack tension adjustment, by 24 dish waterproofing type optical fiber microtubule unit according to color sequences (front 12 colors are 12 chromatograms, and rear 12 colors adopt the mode of spray printing colour circle), loads onto cage pay off rack; And 2 large line density water blocking yarns are loaded onto respectively in the Multifunctional pay-off stand of cage pay off rack afterbody and stem;
Install polyester and prick yarn, and the yarn-binding tension of the vertical bag bundling machine of adjustment and bundle yarn pitch are respectively 0.2N, 100mm, are fixed by 28 ~ 30mm waterstop on waterstop pay-off equipment;
Install aramid fiber reinforcement 10 2840den, aramid fiber twisting pitch is set to 350-450mm, and aramid fiber laying tension is set to 2N;
24 waterproofing type optical fiber microtubules and 4 large line density water blocking yarn entirety are fixed to head from guide wheel through vertical bag bundling machine, the traction of aramid fiber paying out machine;
Installed by two dish 1.0mmFRP, adjustment laying tension is 4 ~ 6N, draws and fixes to head Go-over mould place;
Device extruded mould, this structure optical cable adopts half tubular molding tool, 24 stranded rear external diameters of waterproofing type optical fiber microtubule unit are that 8.6mm(contains 4 large line density water blocking yarns), use 30mm waterstop indulges bag and after coated 10 2840D aramid fibers, external diameter is about 9.70mm, product external diameter 13.2mm ± 5%, wall thickness >=1.8mm, according to theory calculate, core rod inner/outer diameter 11mm/12.5mm, die sleeve internal diameter adopts 16.5mm;
Waterproofing type microtubule cable core being imported core rod cage, to carry out waterproofing type microtubule cable core stranded, and opening aramid fiber machine, to carry out aramid fiber stranded, and open bundling machine and carry out surface uniform to waterstop and prick yarn;
Use high density polyethylene (HDPE) to carry out extrusion molding sheath, be 180 ~ 230 DEG C by Extruder temperature scope control, hot water storgae temperature controls at 40 DEG C, by the cooling of normal temperature 20 ~ 25 DEG C of tank bilayers, draw to take-up place, and upper dish carries out finished product production.
Claims (5)
1. all dielectric large core number high density micro-tube wiring optical cable, is characterized in that: by waterproofing type optical fiber microtubule, large line density water blocking yarn, waterstop, fiberglass-reinforced plastic lever, aramid fiber, tear rope, oversheath forms; Waterproofing type optical fiber microtubule is twisted into waterproofing type optical fiber microtubule cable core, waterproofing type optical fiber microtubule cable core outside uses double-sided insulation type waterstop to carry out vertical bag, and adopt high strength aramid fiber and tear rope and make reinforcement, outer use two parallel reinforcements of fiberglass-reinforced plastic lever are inner at oversheath, strengthen its tensile property.
2. all dielectric according to claim 1 large core number high density micro-tube wiring optical cable, is characterized in that: in a fairly large number of situation of waterproofing type optical fiber microtubule, also needs to add several large line density water blocking yarn stranded to guarantee overall block-water effect together.
3. all dielectric according to claim 1 large core number high density micro-tube wiring optical cable, is characterized in that: suitably in aramid fiber, increase by 1 ~ 2 large line density water blocking yarn according to overall optical cable water-blocking test situation.
4. all dielectric according to claim 1 large core number high density micro-tube wiring optical cable, is characterized in that: described waterproofing type optical fiber microtubule is made up of sheath, colored optical fiber, fine cream or water blocking yarn.
5. all dielectric according to claim 1 large core number high density micro-tube wiring optical cable, it is characterized in that: waterproofing type optical fiber microtubule quantity increases according to cage pay off rack quantity, select 24,36,48, the inner every root unit of optical cable of core number more than 12 is 12 core waterproofing type optical fiber microtubule unit, and the optical cable inner waterproofing type optical fiber microtubule unit of core number less than 12 can select often pipe 12 core, 8 cores, 6 cores, 4 cores, 2 cores, 1 core.
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| CN201520028488.9U CN204405908U (en) | 2015-01-15 | 2015-01-15 | All dielectric large core number high density micro-tube wiring optical cable |
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| CN201520028488.9U CN204405908U (en) | 2015-01-15 | 2015-01-15 | All dielectric large core number high density micro-tube wiring optical cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570251A (en) * | 2015-01-15 | 2015-04-29 | 江苏中天科技股份有限公司 | All-dielectric large-core-number high-density micro pipeline wiring cable and manufacturing method thereof |
| CN106094141A (en) * | 2016-08-23 | 2016-11-09 | 深圳市特发信息光网科技股份有限公司 | A kind of dry type blocks water easy stripping multicore microbeam pipe series optical cable |
| WO2022092019A1 (en) * | 2020-10-26 | 2022-05-05 | 住友電気工業株式会社 | Optical fiber cable and cable with connector |
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2015
- 2015-01-15 CN CN201520028488.9U patent/CN204405908U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570251A (en) * | 2015-01-15 | 2015-04-29 | 江苏中天科技股份有限公司 | All-dielectric large-core-number high-density micro pipeline wiring cable and manufacturing method thereof |
| CN106094141A (en) * | 2016-08-23 | 2016-11-09 | 深圳市特发信息光网科技股份有限公司 | A kind of dry type blocks water easy stripping multicore microbeam pipe series optical cable |
| WO2022092019A1 (en) * | 2020-10-26 | 2022-05-05 | 住友電気工業株式会社 | Optical fiber cable and cable with connector |
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