CN104656217B

CN104656217B - Anti- unfirmly closing optical cable and preparation method thereof

Info

Publication number: CN104656217B
Application number: CN201510103914.5A
Authority: CN
Inventors: 廖宏旭
Original assignee: Individual
Current assignee: Liao Hongxu
Priority date: 2015-03-10
Filing date: 2015-03-10
Publication date: 2017-08-29
Anticipated expiration: 2035-03-10
Also published as: CN107065108A; CN104656217A

Abstract

The invention belongs to technical field of cables, more particularly, to anti-unfirmly closing optical cable, it includes many Loose tubes, the overcoat outside Loose tube, the sheath outside overcoat being distributed in outside reinforcer, oversheath outside sheath, an optical fiber is comprised at least in every Loose tube, it is characterized in that have one to prevent pecking layer between sheath and oversheath, it is described to prevent that peck layer is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE), epoxy resin, ultra-fine steel fibre or glass fibre or silica optical fiber, EVA hot-melt adhesive, antioxidant, aluminium hydroxide, paraffin, carbon black master batch.Present invention further teaches its preparation method.The present invention has following main beneficial effect：Easily make, anti-peck that effect is good, speed of production is fast, product qualified rate is high, more resistant to pressure and more resistant to impact.

Description

Anti- unfirmly closing optical cable and preparation method thereof

Technical field

The invention belongs to technical field of cables, more particularly, to anti-unfirmly closing optical cable, anti-unfirmly closing cable and they are corresponding Preparation method.

Background technology

To adapt to the existence of environment, be grown in birds near forest zone mostly with sharp puff, they can peck bad cable, Communications optical cable cable sheath and insulating barrier.In cable and communications optical cable, for the ease of identification, usual insulating barrier and Loose tube have many Color is planted, is pipped after sheath, the insulating barrier and Loose tube of a variety of colors look like pattern insect, and birds are eaten by mistake and often pecked bad Insulated wire cores, optical fiber, or even peck disconnected copper conductor, cause electric power/communication obstructed.Sleet is entered in cable by broken sheath Portion, in the course of time, causes the communication failure of unknown cause.Many forest land areas at home, such as Hunan, Yunnan, Zhejiang, Guilin Ground, has occurred and that the failure that cable is repeatedly broken by unfirmly closing, causes immeasurable loss.

Therefore, the country has carried out substantial amounts of research.It is entitled：Anti- pecking 8-shaped photoelectrical composite cable, Authorization Notice No.： CN202041686U patent, is filled by sheath, copper cash bed course, copper conductor, pine set filled composite, optical fiber, Loose tube, cable core Compound, reinforcer bed course, reinforcer, auxiliary reinforcing element, moisture-proof layer composition, optical fiber is in Loose tube, and Loose tube is centered around Around reinforcer, wrapped up by band, cable core filled composite is moisture-proof layer outside band, they constitute cable core, with bag in band There is the copper conductor bed course sheath of copper conductor, they are by sheath formation 8-shaped sheath, and its sheath is red.Cable can effectively be protected When outdoor is built on stilts not by unfirmly closing.

It is entitled：The integrated photoelectricity composite cable of anti-unfirmly closing indoor and outdoor, Authorization Notice No.：CN203165550U patent, It includes flame-retardant sheath material, optical fiber, reinforcer, wire, painting plastic composite strip, insulating barrier and red PE sheaths, and optical fiber 7 is in fire-retardant shield The center of jacking 6, both sides are reinforcers 5, and wire 41 is used afterwards by stranded together with flame-retardant sheath material 6 after the vertical bag of painting plastic composite strip 3 Red PE sheaths carry out outer protect.This product is mainly used in connection between mobile base station and launching tower, connected in computer room, can reach Avoid local have a power failure or batteries failure and the effect for causing power-off of base station；Reduce networking expense, it is to avoid secondary wiring, Can also anti-unfirmly closing.

It is entitled：Outdoor nonmetal bird pecking prevention aerial optical cable, Authorization Notice No.：CN202067003U patent, it includes Optical fiber, Loose tube, fine cream, center reinforcemen, sheath, contain optical fiber（6）Loose tube（8）It is centered around center reinforcemen（2）Week Enclose, Loose tube（8）Inside there is fine cream（7）, Loose tube（8）By band（5）Wrapping, overcoat sheath（9）, it is characterised in that：Band（5） Inside there is material water-proof material（4）, sheath（9）It is red pe sheath.

It is entitled：Self-bearing anti-bird pecking overhead aluminum core composite optical cable, Authorization Notice No.：CN202258545U patent, it Including sheath, aluminum conductor, cable core filled composite, reinforcer, optical fiber, pine set filled composite, Loose tube, band, moisture-proof layer And steel strand wires, optical fiber（7）In Loose tube（9）It is interior, Loose tube（9）Inside there is pine set filled composite（8）, Loose tube（9）Led with aluminium Line（3）Around reinforcer（6）Twist together by band（11）Wrapping, it is characterised in that：Band（11）There is moisture-proof layer outside（12） With the red sheath of 8 fonts（1）, minor diameter red sheath in have steel strand wires（13）.

It is entitled：Anti- unfirmly closing self-bearing type butterfly leading in cable, Authorization Notice No.：CN202649559U patent, it includes Optical fiber, reinforcer and oversheath, reinforcer are rolled into butterfly by oversheath together in optical fiber both sides, it is characterised in that：Oversheath （4）Side is also connected with equipped with wire reinforcement（1）Red sheath（5）.

It is entitled：, Authorization Notice No.：CN202523458U patent, it is characterised in that：Loose tube and copper conductor are centered around Around reinforcer, optical fiber and pine set filled composite are in Loose tube, and they are all wrapped up by band, and outside is moisture-proof layer, and it is special Levy and be：Moisture-proof layer（11）Outer sheath is red sheath.

It is entitled：A kind of anti-unfirmly closing optical cable, Authorization Notice No.：CN203133348U patent, including cable core and outer shield There is the fiber unit and center reinforcemen, gasket for packing collectively formed by optical fiber, fine cream, ferrule, it is special in set, cable core Levy and be to be sequentially provided with bundle yarn layer and wrinkle steel belt layer between cable core and oversheath, oversheath is red sheath and yellow sheath It is symmetrical arranged longitudinally twisted structure.Oversheath is symmetrical arranged longitudinally twisted structure using red sheath and yellow sheath, outside Likeness in form is wrapped in the snake on optical cable, is afraid of bird pest, dare not fly to gnaw in cable surface again and peck optical cable, be hardly damaged optical cable, prolong Long life.

It is entitled：New anti-unfirmly closing colour code optical cable, Authorization Notice No.：CN203133349U patent, including cable core and outer There is the fiber unit and center reinforcemen, gasket for packing collectively formed by optical fiber, fine cream, ferrule in sheath, cable core, its It is characterised by being sequentially provided with bundle yarn layer, inner sheath and wrinkle steel belt layer between cable core and oversheath, the structure of oversheath is vertical To the red sheath for being equidistantly provided with several yellow colour codes.

It is entitled：Aerial cable, Authorization Notice No. with anti-unfirmly closing function：CN203325538U patent, including make For the steel wire of self-supporting line（1）, eight pieces be coated with polyethylene layer（21）Copper conductor（2）With red oversheath body（3）；Described eight Copper conductor（2）It is stranded two-by-two to form four pairs of twisted wires pair communicated as information（4）, the first twisted wire pair of the four twisted pair wires centering （41）, the second twisted wire pair（42）, the 3rd twisted wire pair（43）With the 4th twisted wire pair（44）It is arranged in order counterclockwise and stranded formation is led Cable core（5）；One polyester belt（6）Around being wrapped in the conductive cable core（5）Outer surface, an inner restrictive coating（7）Extrude in the polyester Band（6）Outer surface；The red oversheath body（3）Including the first sub- sheath（31）With the second sub- sheath（32）, first son Sheath（31）With the second sub- sheath（32）Between pass through one connect muscle portion（33）Connection, the first sub- sheath（31）It is coated on described Inner restrictive coating（7）Outer surface, the second sub- sheath（32）It is coated on the steel wire（1）Outer surface.

It is entitled：The anti-unfirmly closing photoelectricity composite cable of Self-bearing-type overhead, Authorization Notice No.：CN203260336U patent, it Including aluminum conductor, red PE pe sheaths layer, PBT Loose tubes, metal reinforcement, steel strand wires, PE sheaths, metal composite Band, red PE protective cover materials, it is characterised in that：Optical fiber carries out pine set protection and makes PBT Loose tubes（3）, PBT Loose tubes（3）Inside fill Enter filler；By stranded by PBT Loose tubes（3）It is centered around metal reinforcement（4）Outside, outside the cable core after stranding it is vertical bag armouring Metal compound belt（7）, metal compound belt（7）Outside is equipped with red PE protective cover materials after armouring（2）, aluminum conductor（1）, steel strand wires （5）, PE sheaths（6）Red PE pe sheaths layer（2）, they are mounted side by side on red PE pe sheaths layer（2）It is interior.

It is entitled：Self-bearing type bird-pecking-proof overhead integrated leading-in optical cable, Authorization Notice No.：CN202217541U patent, it Including material water-proof material, band, communication metal wire in center reinforcemen, feed line, cable to, moisture-proof layer, the Loose tube containing optical fiber, Sheath, steel strand wires, the Loose tube containing optical fiber（10）Or other light units surround center reinforcemen（2）Stranded, outside is band（6） And moisture-proof layer（8）, it is characterised in that：Feed line（4）With communication metal wire pair（7）Around center reinforcemen（2）It is stranded, band （6）Inside there is material water-proof material in cable（5）, moisture-proof layer（8）It is the red poly- second sheath of 8 fonts outside（11）, 8 fonts red pe sheath （11）Minor diameter set in be cased with steel strand wires（12）.

Above-mentioned patent, it is all or part of red or other colors that cable outermost layer is made bar none, and bird is taken the photograph for prestige Class, it is applicant's understanding that only the color of sheath turns into distinguishing feature to be red, should not turn into utility model patent first, Because it is not the shape and structure of patent protection；Secondly, red or other colors are nor for all forest zone birds Can prestige take the photograph, conversely, because cable can swing or shake when having wind, most of birds are mistaken for pink bollworm, because This, eye-catching cable is more easy to be attacked by birds, therefore the fault rate for causing cable to occur by unfirmly closing is higher.

It is entitled：A kind of anti-unfirmly closing All Dielectric self-support, Authorization Notice No.：CN203054288U patent, it is wrapped Optical fiber, Loose tube, fine cream, center reinforcemen, sheath, aramid layers are included, outer jacket contains optical fiber（1）Loose tube（3）Surround In center reinforcemen（4）Around, Loose tube（3）Inside there is fine cream（2）, Loose tube（3）By bundle yarn（6）Wrapping, sheath（7）With pine Sleeve pipe（3）Between, there is cable core filler（5）, it is characterised in that：Aramid layers（8）It is evenly distributed in sheath（7）Around, most Outer jacket afterwards（9）Using nylon sheath wire material.

The cost of nylon sheath wire material in itself is 15-20 times of polyethylene sheath material, moreover, process velocity extremely slow, finished product is closed Lattice rate only 50% or so, and simultaneous manufacturing thickness can only in below 0.8mm, it is necessary to repeatedly processing can be only achieved anti-peck and need The requirement wanted.

It is entitled：Communication cable preventing damages from rats, ants and birds, Authorization Notice No.：CN201094125Y patent, including cable core (1), cable core (1) is made up of some to the line with band (21) to (2), and line is to (2) by two conductors (22) and conductor (22) Outer insulating barrier (23) is stranded to be formed, it is characterised in that：The cable core (1) is sequentially provided with band (3), aluminium strip from the inside to the outside outside And high molecular weight high density polyolefin jacket (5) (4).

It is entitled：Anti- unfirmly closing communication cable, Authorization Notice No.：CN201017714Y patent, including core, polyethylene are exhausted Edge layer, polyester lapping layer, plastic-aluminum shielding band, polyethylene sheath, it is characterised in that：Polyethylene insulation is surrounded by successively outside core Layer, polyester lapping layer, plastic-aluminum shielding band, polyethylene sheath, armor, polyethylene outer sheath.The outside of this patent is more one layer Scribble the steel band of preserver, the small high-molecular polythene of many moisture vapor transmission coefficients one layer thicker of outermost, so that cable life Extend more than one times；And when electric-field intensity is higher, shielding character is improved by about one time than original cable.

In above-mentioned patent, outer layer employs high density or macromolecule polyolefin jacket, is in the prior art conventional material, thing Real example is bright, it is extremely difficult to play a part of being effective against birds invasion and attack.

Therefore, user expects that the anti-cable, anti-optical cable of pecking pecked with more preferable effect occurs.

The content of the invention

In order to solve the above problems, an object of the present invention is to disclose anti-unfirmly closing optical cable；The second object of the present invention is Disclose anti-unfirmly closing cable；The third object of the present invention is the preparation method for disclosing anti-unfirmly closing optical cable；The fourth object of the present invention is The preparation method for disclosing anti-unfirmly closing cable；They are realized using following technical scheme.

In the embodiment 1 of the present invention, anti-unfirmly closing optical cable, it include be distributed in many Loose tubes 2 outside reinforcer 3, Overcoat 4 outside Loose tube, the sheath 5 outside overcoat, the oversheath 7 outside sheath, every An optical fiber 1 is comprised at least in Loose tube, it is characterised in that have one to prevent pecking layer 6 between sheath and oversheath, it is described It is anti-to peck layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50 ~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/diameter ratio be 5 ~20 ultra-fine steel fibre or length be 0.1~1mm, a diameter of 0.03~1mm glass fibre or a diameter of 6.5~ 260 μm, the silica optical fiber that length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；The line of model 1010 Cable sheath antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts.

In the embodiment 2 of the present invention, anti-unfirmly closing optical cable, it includes at least one pine set being distributed in outside reinforcer 3 Pipe 2 and at least one big gasket for packing 21, the overcoat 4 outside Loose tube and big gasket for packing, outside overcoat in An optical fiber 1 is comprised at least in sheath 5, the oversheath 7 outside sheath, every Loose tube, it is characterised in that interior Have one to prevent pecking layer 6 between sheath and oversheath, it is described to prevent pecking layer by weight, it is made up of following raw material：Midst density gathers Ethene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~ 20 parts；A diameter of 10~80 μm, length/diameter ratio be 5~20 ultra-fine steel fibre or length be 0.1~1mm, it is a diameter of 0.03~1mm glass fibre or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 Part；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts； Paraffin：3~9 parts；Carbon black master batch：5~10 parts.

In the embodiment 3 of the present invention, anti-unfirmly closing optical cable, it include be distributed in many Loose tubes 2 outside reinforcer 3, Small gasket for packing 22 in the external series gap of adjacent Loose tube, the overcoat 4 outside Loose tube and small gasket for packing, it is located at An optical fiber is comprised at least in sheath 5 outside overcoat, the oversheath 7 outside sheath, every Loose tube 1, the optical fiber is located among fibre ribbon, and fibre ribbon is located in Loose tube, it is characterised in that between sheath and oversheath Prevent pecking layer 6 with one, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene Alkene or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~ 80 μm, length/diameter ratio be 5~20 ultra-fine steel fibre or length be 0.1~1mm, a diameter of 0.03~1mm glass fibers Dimension or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 Part；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black is female Grain：5~10 parts.

Anti- unfirmly closing optical cable, it includes at least one Loose tube 2 being distributed in outside reinforcer 3 and at least one big filling Rope, in the external series gap of adjacent Loose tube or in the external series gap of adjacent big gasket for packing or adjacent Loose tube and big filling Small gasket for packing in the external series gap of rope, the overcoat 4 outside Loose tube and big gasket for packing and small gasket for packing, positioned at overcoat Outside sheath 5, the oversheath 7 outside sheath comprises at least an optical fiber 1 in every Loose tube, described Optical fiber is located among fibre ribbon, and fibre ribbon is located in Loose tube, it is characterised in that have one between sheath and oversheath Prevent pecking layer 6, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or height Density polyethylene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length Degree/diameter than ultra-fine steel fibre or length for 5~20 be 0.1~1mm, a diameter of 0.03~1mm glass fibre or A diameter of 6.5~260 μm, the silica optical fiber that length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Type Number be 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5 ~10 parts.

The present invention embodiment 4 in, anti-unfirmly closing optical cable, it comprising Loose tube 2, the water blocking layer 8 outside Loose tube, Overcoat 4 outside water blocking layer, the reinforcer 3 outside overcoat, the outer shield outside reinforcer and overcoat Set 7, comprises at least an optical fiber 1 in Loose tube, optical fiber be with the formal distribution of bulk in Loose tube or In the fibre ribbon being placed in Loose tube, it is characterised in that have one to prevent pecking layer 6 between overcoat and oversheath, strengthen Part, which is located at, to be prevented pecking in layer, described to prevent pecking layer by weight, is made up of following raw material：Medium density polyethylene or low density polyethylene Alkene or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~ 80 μm, length/diameter ratio be 5~20 ultra-fine steel fibre or length be 0.1~1mm, a diameter of 0.03~1mm glass fibers Dimension or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 Part；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black is female Grain：5~10 parts.

In the embodiment 5 of the present invention, anti-unfirmly closing optical cable, it is comprising Loose tube 2, outside Loose tube and by Loose tube Multi reinforcements 3 that integral coating is lived, by the securing wrapping layer 9 of multi reinforcements, the sheath 5 outside wrapping layer, An optical fiber 1 is comprised at least in oversheath 7 outside sheath, Loose tube, optical fiber is in the form of bulk It is distributed in Loose tube or in the fibre ribbon being placed in Loose tube, it is characterised in that the sheath and outer shield Have one to prevent pecking layer 6 between set, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene is low close Spend polyethylene or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；Diameter The ultra-fine steel fibre or length for being 5~20 for 10~80 μm, length/diameter ratio are 0.1~1mm, a diameter of 0.03~1mm Glass fibre or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA is heated Glue：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 Part；Carbon black master batch：5~10 parts.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the wrapping layer is that polyester pricks yarn or other has one Determine the yarn class material of intensity, it is to be coated on by way of spiral winding outside multi reinforcements, makes multi reinforcements position It is relatively fixed.

In the embodiment 6 of the present invention, anti-unfirmly closing cable includes cable conductor and positioned at outermost oversheath, its Be characterised by being close to the inside of oversheath have one it is anti-peck layer, or be close to oversheath inside have one it is anti-peck layer, be close to The anti-inside for pecking layer has an overcoat；It is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or Low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts； A diameter of 10~80 μm, length/diameter ratio be 5~20 ultra-fine steel fibre or length be 0.1~1mm, a diameter of 0.03~ 1mm glass fibre or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA PUR：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3 ~9 parts；Carbon black master batch：5~10 parts.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the reinforcer is that steel wire or glass fiber reinforcement are moulded Expect bar.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the Loose tube is polybutylene terephthalate (PBT) Or modified polypropene.

Anti- unfirmly closing optical cable or anti-unfirmly closing cable described above, it is characterised in that the material of the overcoat is steel band or aluminium Band.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the sheath is low density polyethylene (LDPE) or Midst density Polyethylene or high density polyethylene (HDPE).

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the oversheath is low density polyethylene (LDPE) or Midst density Polyethylene or high density polyethylene (HDPE) or nylon.

Anti- unfirmly closing optical cable described above, it is characterised in that described optical fiber is single mode or multimode fibre, and enters one Walk its model of ground G.652 type or G.655 type or G.657 type or A1a types or A1b types.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the water blocking layer is waterstop or water blocking yarn.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the big gasket for packing is polypropylene or polyethylene or poly- The mixture of propylene and polyethylene.

Anti- unfirmly closing optical cable described above, it is characterised in that the material of the small gasket for packing is polypropylene or polyethylene or poly- The mixture of propylene and polyethylene.

Anti- unfirmly closing optical cable described above, it is characterised in that there is the interior filler that blocks water in the Loose tube, inside block water Filler is ointment or water-proofing powder or water blocking yarn.

Anti- unfirmly closing optical cable described above, it is characterised in that filled with the outer filling that blocks water in the outer gap of the Loose tube Material, the filler that blocks water outside is ointment or water-proofing powder or water blocking yarn.

The preparation method of anti-unfirmly closing optical cable in embodiment 1 of the present invention, it is characterised in that it is comprised the steps of：

The first step：The step of making colored optical fiber：By naked colouring optical fibres into different colours colored optical fiber；

Second step：The step of making Loose tube：By secondary coated extruding machine formation Loose tube, and by different colours Coloured light fibre is placed into Loose tube, is wound to form Loose tube finished product, length of the colored optical fiber in Loose tube is covered for pine 1.002~1.015 times of length of tube, the material of Loose tube is polybutylene terephthalate (PBT) or modified polypropene, makes pine Loose tube extrusion molding special color master batch is added during sleeve pipe in the material of Loose tube；It is repeated multiple times, form the pine of many different colours Sleeve pipe；

3rd step：The step of making optical cable core：Second step is made into many obtained Loose tubes, the reinforcer purchased Stranding is carried out in SZ stranding machines, makes reinforcer centrally located, many Loose tubes are located at outside reinforcer, and Loose tube SZ is twisted The pitch of conjunction is 9~18 times of reinforcer and Loose tube diameter sum；

4th step：The step of making sheath：Steel band or aluminium strip material are first longitudinally coated on to the optical cable of the 3rd step formation Overcoat, then extrusion molding low density polyethylene (LDPE) or medium density polyethylene or high-density polyethylene material outside overcoat are formed outside cable core Sheath is formed, the thickness of sheath is 0.8~2.0mm；

5th step：The step of making anti-peck layer：By sheath extruding machine outside the sheath that the 4th step is formed extrusion molding thickness Anti- for 1.0~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were constituted：Midst density Polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10 ~20 parts；A diameter of 10~80 μm, length/diameter ratio be 5~20 ultra-fine steel fibre or length be 0.1~1mm, it is a diameter of 0.03~1mm glass fibre or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 Part；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts； Paraffin：3~9 parts；Carbon black master batch：5~10 parts；

6th step：The step of making oversheath：Coated by sheath extruding machine in the anti-extrusion molding of pecking outside layer that the 5th step is formed Jacket material, oversheath thickness is 1.4~3.0mm；The material of oversheath be low density polyethylene (LDPE) or medium density polyethylene or High density polyethylene (HDPE).

The preparation method of anti-unfirmly closing optical cable in embodiment 2 of the present invention, it is characterised in that it is comprised the steps of：

3rd step：The step of making big gasket for packing：By the polypropylene of polypropylene or polyethylene or 85% percentage by weight with The mixture of the polyethylene of 15% percentage by weight is put into φ 45 or the extruding machines of φ 60, and extrusion molding stretches to form diameter and second step Middle gained Loose tube equally big big gasket for packing；

4th step：The step of making optical cable core：Second step is made into many obtained Loose tubes, the reinforcement purchased Obtained big gasket for packing carries out stranding in SZ stranding machines in part, the 3rd step, makes reinforcer centrally located, many Loose tubes And big gasket for packing is located at outside reinforcer, pitch stranded SZ is 9~18 times of reinforcer and Loose tube diameter sum；

5th step：The step of making sheath：Steel band or aluminium strip material are first longitudinally coated on to the optical cable of the 4th step formation Overcoat, then extrusion molding low density polyethylene (LDPE) or medium density polyethylene or high-density polyethylene material outside overcoat are formed outside cable core Sheath is formed, the thickness of sheath is 0.8~2.0mm；

6th step：The step of making anti-peck layer：By sheath extruding machine outside the sheath that the 5th step is formed extrusion molding thickness Anti- for 1.0~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were constituted：Midst density Polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10 ~20 parts；A diameter of 10~80 μm, length/diameter ratio be 5~20 ultra-fine steel fibre or length be 0.1~1mm, it is a diameter of 0.03~1mm glass fibre or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 Part；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts； Paraffin：3~9 parts；Carbon black master batch：5~10 parts；

7th step：The step of making oversheath：Coated by sheath extruding machine in the anti-extrusion molding of pecking outside layer that the 6th step is formed Jacket material, oversheath thickness is 1.4~3.0mm；The material of oversheath be low density polyethylene (LDPE) or medium density polyethylene or High density polyethylene (HDPE).

The preparation method of anti-unfirmly closing optical cable in embodiment 4 of the present invention, it is characterised in that it is comprised the steps of：

Second step：The step of making Loose tube：By secondary coated extruding machine formation Loose tube, and by different colours Coloured light fibre is placed into Loose tube, is wound to form Loose tube finished product, length of the colored optical fiber in Loose tube is covered for pine 1.002~1.015 times of length of tube, the material of Loose tube is polybutylene terephthalate (PBT) or modified polypropene, makes pine Loose tube extrusion molding special color master batch is added during sleeve pipe in the material of Loose tube；

3rd step：The step of making anti-peck layer：First take waterstop or the yarn material that blocks water is coated on the loose of second step formation and covered Water blocking layer is formed outside pipe；Take steel band or aluminium strip to be longitudinally coated on outside water blocking layer again and form overcoat；Two reinforcements are taken to put again It is placed on outside overcoat；Then by sheath extruding machine, extrusion molding thickness is 1.0~3.0mm thickness outside overcoat and reinforcer It is anti-peck layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were constituted：Medium density polyethylene or low-density are poly- Ethene or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10 ~80 μm, length/diameter ratio be 5~20 ultra-fine steel fibre or length be 0.1~1mm, a diameter of 0.03~1mm glass Fiber or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~ 10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black Master batch：5~10 parts；Wherein, two reinforcements are to be placed in overcoat external symmetry and the minimum between reinforcer and overcoat Distance is 0.2mm, and reinforcer is 0.4mm away from the anti-minimum range for pecking layer outer rim；

4th step：The step of making oversheath：Coated by sheath extruding machine in the anti-extrusion molding of pecking outside layer that the 3rd step is formed Jacket material；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or nylon 12；When The material of oversheath be low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) when, oversheath thickness be 1.0~ 3.0mm；When the material of oversheath is nylon 12, oversheath thickness is 0.4~0.8mm.

In the present invention, due to pecking layer with anti-, anti-layer of pecking has special formula, and on the one hand it can be entered by extruding machine Row extrusion molding, easy to process, speed of production is fast, and a diameter of below 25mm cable and optical cable, speed are produced on the extruding machines of φ 90 More than 60 ms/min are reached, and product qualified rate is high, because anti-peck has ultra-fine steel fibre or glass fibre or dioxy in layer SiClx optical fiber, it has extremely strong performance of stabbing, and birds peck hitting after first time, will injure its puff, therefore without again Peck the desire hit so that cable is effectively protected, by the use in nearly 3 years forest zones, do not have generation bad electric because birds peck again Cable or optical cable and interrupt electric power, communication accident occur；Meanwhile, anti-layer of pecking of the invention is with stronger anti-side pressure and resistance to punching Hit power.

The present invention is easy to the equipment for making, need not adding costliness.

The present invention has following main beneficial effect：Easily make, it is anti-peck that effect is good, speed of production is fast, product qualified rate is high, More resistant to pressure and more resistant to impact.

Brief description of the drawings

Fig. 1 is the cross-sectional structure schematic diagram of embodiment 1 of the present invention.

Fig. 2 is the cross-sectional structure schematic diagram of embodiment 2 of the present invention.

Fig. 3 is the cross-sectional structure schematic diagram of embodiment 3 of the present invention.

Fig. 4 is the cross-sectional structure schematic diagram of embodiment 4 of the present invention.

Fig. 5 is the cross-sectional structure schematic diagram of embodiment 5 of the present invention.

Embodiment

Embodiment 1 of the present invention is to the embodiment that embodiment 5 is anti-unfirmly closing optical cable and preparation method thereof；The present invention is implemented Example 6 is the embodiment of anti-unfirmly closing cable and preparation method thereof.

Embodiment 1

See Fig. 1, anti-unfirmly closing optical cable, it include be distributed in four Loose tubes 2 outside reinforcer 3, positioned at Loose tube it Included in outer overcoat 4, the sheath 5 outside overcoat, the oversheath 7 outside sheath, every Loose tube Six roots of sensation optical fiber 1, it is characterised in that have one to prevent pecking layer 6 between sheath and oversheath, it is described to prevent pecking layer by weight, It is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The trade mark is 617 Or the epoxy resin that the trade mark is 677：10~20 parts；A diameter of 10~80 μm, the ultra-fine steel fibre that length/diameter ratio is 5~20 Or length be 0.1~1mm, a diameter of 0.03~1mm glass fibre or a diameter of 6.5~260 μm, length be 0.03~ 1mm silica optical fiber：40~60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3 ~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts.

Certainly, the Loose tube described in this embodiment can be to comprise at least a light guide fibre in many, every Loose tube Dimension.

The preparation method of anti-unfirmly closing optical cable, it is characterised in that it is comprised the steps of：

Embodiment 2

See Fig. 2, anti-unfirmly closing optical cable, it includes four Loose tubes 2 and one big gasket for packing being distributed in outside reinforcer 3 21st, outside Loose tube and big gasket for packing overcoat 4, the sheath 5 outside overcoat, outside sheath An optical fiber 1 is comprised at least in oversheath 7, every Loose tube, it is characterised in that have one between sheath and oversheath Prevent pecking layer 6, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or height Density polyethylene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length Degree/diameter than ultra-fine steel fibre or length for 5~20 be 0.1~1mm, a diameter of 0.03~1mm glass fibre or A diameter of 6.5~260 μm, the silica optical fiber that length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Type Number be 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5 ~10 parts.

Certainly, the Loose tube described in this embodiment can be many, at least one；One is comprised at least in every Loose tube Root optical fiber；Big gasket for packing at least one.

The preparation method of anti-unfirmly closing optical cable in this embodiment, it is characterised in that it is comprised the steps of：

Embodiment 3

See Fig. 3, anti-unfirmly closing optical cable, it is comprising four Loose tubes 2 being distributed in outside reinforcer 3, positioned at adjacent pine Small gasket for packing 22 in the external series gap of sleeve pipe, the overcoat 4 outside Loose tube and small gasket for packing, outside overcoat Ten six roots of sensation optical fibers 1, the optical fiber are included in sheath 5, the oversheath 7 outside sheath, every Loose tube Among fibre ribbon, fibre ribbon is located in Loose tube, it is characterised in that have one to prevent pecking layer 6 between sheath and oversheath, It is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high-density polyethylene Alkene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/diameter It is 0.1~1mm, a diameter of 0.03~1mm glass fibre or a diameter of than ultra-fine steel fibre or length for 5~20 6.5~260 μm, the silica optical fiber that length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 Part.

Certainly, the Loose tube described in this embodiment can be many, at least one；One is comprised at least in every Loose tube Root optical fiber.

Certainly, the optical cable in this embodiment, can also be as embodiment 2, anti-unfirmly closing optical cable, and it includes and is distributed in At least one Loose tube 2 and at least one big gasket for packing outside reinforcer 3, in the external series gap of adjacent Loose tube or phase In the external series gap of adjacent big gasket for packing or adjacent Loose tube is with the small gasket for packing in the external series gap of big gasket for packing, positioned at Loose tube And the overcoat 4 outside big gasket for packing and small gasket for packing, the sheath 5 outside overcoat, it is outer outside sheath An optical fiber 1 is comprised at least in sheath 7, every Loose tube, the optical fiber is located among fibre ribbon, and fibre ribbon is located at In Loose tube, it is characterised in that have between sheath and oversheath one it is anti-peck layer 6, it is described it is anti-peck layer by weight, by with Lower raw material are constituted：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The trade mark is 617 or board Number be 677 epoxy resin：10~20 parts；A diameter of 10~80 μm, length/diameter ratio for 5~20 ultra-fine steel fibre or Length is that 0.1~1mm, a diameter of 0.03~1mm glass fibre or a diameter of 6.5~260 μm, length are 0.03~1mm Silica optical fiber：40~60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 Part；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts.

Anti- unfirmly closing optical cable in this embodiment, its preparation method is referred to embodiment 1 and puts example 2 with real, only not Many one of fibre ribbon making steps after the completion of coloring are crossed, by colored optical fiber and with fibre ribbon is formed, then in the shape of Loose tube During, fibre ribbon is inserted in Loose tube.

During anti-unfirmly closing fiber optic cable production in this embodiment, when having small gasket for packing, in SZ strandings, small gasket for packing is placed on In the external series gap of adjacent Loose tube or in the external series gap of adjacent big gasket for packing or adjacent Loose tube and big gasket for packing it is outer In gap.

Embodiment 4

See Fig. 4, anti-unfirmly closing optical cable, it comprising Loose tube 2, the water blocking layer 8 outside Loose tube, positioned at water blocking layer it In outer overcoat 4, the reinforcer 3 outside overcoat, the oversheath 7 outside reinforcer and overcoat, Loose tube Comprising 12 optical fibers 1, optical fiber be with the formal distribution of bulk in Loose tube or positioned at being placed on loose set In fibre ribbon in pipe, it is characterised in that have one to prevent pecking layer 6 between overcoat and oversheath, reinforcer, which is located at, to be prevented pecking layer In, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density are poly- Ethene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/straight Footpath is 0.1~1mm, a diameter of 0.03~1mm glass fibre or a diameter of than ultra-fine steel fibre or length for 5~20 6.5~260 μm, the silica optical fiber that length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 Part.

Certainly, an optical fiber is comprised at least in Loose tube described in this embodiment.

Embodiment 5

See Fig. 5, anti-unfirmly closing optical cable, it is comprising Loose tube 2, live outside Loose tube and by Loose tube integral coating Multi reinforcements 3, by the securing wrapping layer 9 of multi reinforcements, the sheath 5 outside wrapping layer, positioned at sheath it Comprising 12 optical fibers 1 in outer oversheath 7, Loose tube, optical fiber is the formal distribution with bulk in Loose tube Or in the fibre ribbon being placed in Loose tube, it is characterised in that between the sheath and oversheath have one prevent Peck layer 6, it is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) are highly dense Spend polyethylene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length Degree/diameter than ultra-fine steel fibre or length for 5~20 be 0.1~1mm, a diameter of 0.03~1mm glass fibre or A diameter of 6.5~260 μm, the silica optical fiber that length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Type Number be 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5 ~10 parts.

3rd step：The step of making wrapping layer：The multi reinforcements integral coating that first buying is obtained is formed in second step Loose tube outside, multi reinforcements are coated in the stranded mode of spiral, the stranded pitch of spiral be 100~300 times of reinforcers it is straight Footpath, reinforcer is steel wire or fiberglass reinforced plastics；Then obtained polyester bundle yarn or other with some strength will be purchased Yarn class material be coated on 20~50mm pitch spiral windings outside reinforcer and form wrapping layer；

4th step：The step of making sheath：By low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) material Material extrusion molding, which is coated on outside the wrapping layer of the 3rd step formation, forms sheath, and the thickness of sheath is 0.8~2.0mm；

6th step：The step of making oversheath：Coated by sheath extruding machine in the anti-extrusion molding of pecking outside layer that the 5th step is formed Jacket material；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or nylon 12；When The material of oversheath be low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) when, oversheath thickness be 1.0~ 3.0mm；When the material of oversheath is nylon 12, oversheath thickness is 0.4~0.8mm.

Embodiment 6

See referring to figs. 1 to Fig. 5, anti-unfirmly closing cable includes cable conductor and positioned at outermost oversheath, its feature Be to be close to the inside of oversheath have one it is anti-peck layer, or be close to oversheath inside have one it is anti-peck layer, be close to anti-peck The inside of layer has an overcoat；It is described to prevent pecking layer by weight, it is made up of following raw material：Medium density polyethylene is low close Spend polyethylene or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；Diameter The ultra-fine steel fibre or length for being 5~20 for 10~80 μm, length/diameter ratio are 0.1~1mm, a diameter of 0.03~1mm Glass fibre or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA is heated Glue：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 Part；Carbon black master batch：5~10 parts；Described cable conductor is cable core of the prior art or cable.

Anti- unfirmly closing cable described above, it is characterised in that it is through the following steps that obtained：

The first step：Cable conductor is made using prior art, the cable conductor is cable core or cable；

Second step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding is thick outside the cable core that the first step is formed Spend and peck layer for the anti-of 1.0~3.0mm thickness；Or take steel band or aluminium strip material to be longitudinally coated on the cable core cable core that the first step is formed Outer formation overcoat, then sheath extruding machine extrusion molding thickness outside overcoat is that the anti-of 1.0~3.0mm thickness pecks layer；It is described anti- Peck layer by weight, anti-layer is pecked by what following raw material were constituted：Medium density polyethylene or low density polyethylene (LDPE) or high density are poly- Ethene：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/straight Footpath is 0.1~1mm, a diameter of 0.03~1mm glass fibre or a diameter of than ultra-fine steel fibre or length for 5~20 6.5~260 μm, the silica optical fiber that length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 parts；Model 1010 cable jacket antioxidant：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 Part；

3rd step：The step of making oversheath：Coated by sheath extruding machine in the anti-extrusion molding of pecking outside layer that second step is formed Jacket material；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or nylon 12；When The material of oversheath be low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) when, oversheath thickness be 1.0~ 3.0mm；When the material of oversheath is nylon 12, oversheath thickness is 0.4~0.8mm.

Anti- unfirmly closing optical cable or anti-unfirmly closing cable described in any of the above-described embodiment, it is characterised in that described to prevent pecking layer Optimal embodiment is：By weight, anti-layer is pecked by what following raw material were constituted：Medium density polyethylene or low density polyethylene (LDPE) Or high density polyethylene (HDPE)：50 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10 parts；A diameter of 10~80 μm, length/ Diameter is than glass fibre or diameter that ultra-fine steel fibre or length for 5~20 are 0.1~1mm, a diameter of 0.03~1mm The silica optical fiber for being 0.03~1mm for 6.5~260 μm, length：40 parts；EVA hot-melt adhesive：5 parts；The line of model 1010 Cable sheath antioxidant：3 parts；Aluminium hydroxide：15 parts；Paraffin：3 parts；Carbon black master batch：5 parts.

Anti- unfirmly closing optical cable or anti-unfirmly closing cable described in any of the above-described embodiment, it is characterised in that described to prevent pecking layer Suboptimum embodiment is：By weight, anti-layer is pecked by what following raw material were constituted：Medium density polyethylene or low density polyethylene (LDPE) Or high density polyethylene (HDPE)：80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：20 parts；A diameter of 10~80 μm, length/ Diameter is than glass fibre or diameter that ultra-fine steel fibre or length for 5~20 are 0.1~1mm, a diameter of 0.03~1mm The silica optical fiber for being 0.03~1mm for 6.5~260 μm, length：60 parts；EVA hot-melt adhesive：10 parts；The line of model 1010 Cable sheath antioxidant：5 parts；Aluminium hydroxide：25 parts；Paraffin：9 parts；Carbon black master batch：10 parts.

Anti- unfirmly closing optical cable or anti-unfirmly closing cable described in any of the above-described embodiment, it is characterised in that described to prevent pecking layer More excellent embodiment is：By weight, anti-layer is pecked by what following raw material were constituted：Medium density polyethylene or low density polyethylene (LDPE) Or high density polyethylene (HDPE)：65 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：15 parts；A diameter of 10~80 μm, length/ Diameter is than glass fibre or diameter that ultra-fine steel fibre or length for 5~20 are 0.1~1mm, a diameter of 0.03~1mm The silica optical fiber for being 0.03~1mm for 6.5~260 μm, length：50 parts；EVA hot-melt adhesive：8 parts；The line of model 1010 Cable sheath antioxidant：4 parts；Aluminium hydroxide：20 parts；Paraffin：6 parts；Carbon black master batch：7.5 part.

Anti- unfirmly closing optical cable or anti-unfirmly closing cable described above, it is characterised in that the anti-medium density polyethylene pecked in layer Or low density polyethylene (LDPE) or high density polyethylene (HDPE), can be pure medium density polyethylene or low density polyethylene (LDPE) or high-density polyethylene Alkene or cable medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE) finished product material.

In the present invention, due to pecking layer with anti-, anti-layer of pecking has special formula, and on the one hand it can be entered by extruding machine Row extrusion molding, easy to process, speed of production is fast, and a diameter of below 25mm cable and optical cable, speed are produced on the extruding machines of φ 90 More than 60 ms/min are reached, and product qualified rate is high, because anti-peck has ultra-fine steel fibre or glass fibre or dioxy in layer SiClx optical fiber, it has extremely strong performance of stabbing, and birds peck hitting after first time, will injure its puff, therefore without again Peck the desire hit so that cable is effectively protected, by the use in nearly 3 years forest zones, do not have generation bad electric because birds peck again Cable or optical cable and interrupt electric power, communication accident occur；Meanwhile, anti-layer of pecking of the invention is with stronger anti-side pressure and resistance to punching Hit power.Ultra-fine steel fibre or glass fibre are commercially just commercially available, and for the anti-silica optical fiber pecked in layer, can Rolled with purchasing optical fiber, crushed, filter acquisition, can not only use light guide fibrous finished product, can also used and not wrap Layer or the optical fiber fibre core without coat or without covering and coat, it might even be possible to ground using optical fiber waste product Pressure, crushing, filtering are obtained, and are reached the useless purpose utilized, are reduced the pollution of optical fiber producer；In addition, material and production in the present invention Product are not related to problem of environmental pollution.

The present invention is easy to the equipment for making, need not adding costliness.In the present invention, when having overcoat, overcoat is pecked with anti- Layer is common to be resisted pecking for birds and hits, when not having overcoat, and reinforcer resists pecking for birds and hit jointly with preventing pecking layer, makes optical cable or electricity Cable is anti-peck hit, impact, the performance of pressure-resistant aspect is greatly increased.In the present invention, oversheath can try one's best without using expensive Nylon, can so make cost decline to a great extent, and make the buying of user, safeguard that integrated cost is lower.Certainly, the outer shield in the present invention Set can also use coloured sheath, such as red, yellow etc., black that is preferably or commonly using.

Applicant has made using contrast, light for the anti-unfirmly closing optical cable in the application and the optical cable produced by prior art Cable is all to make somebody a mere figurehead to lay, and the structure for all using embodiment 1 of the invention, oversheath is black and red, and 1#-4# represents different It is anti-peck layer formula, 1# is maximum magnitude, 2# be it is optimal implement formula, 3# is that suboptimum implements formula, and 4# is that more excellent implementation is matched somebody with somebody Side, first group uses ultra-fine steel fibre, and second group uses glass fibre, and second group uses silica light It is fine；Control group is 5#, uses the structure of embodiment 1, and only it does not prevent pecking layer, but the thickness of oversheath is this hair The oversheath thickness of bright embodiment 1, which adds, to be prevented pecking thickness degree, and oversheath is red, and each sequence number is respectively used in the same forest zone in Hunan 100 kilometers, obtain following data.

From upper table, it is apparent that using the present invention, due to the anti-effect for pecking layer, really obtaining electric power, communications Guarantee has been arrived, meanwhile, anti-peck in layer pecks best performance using the anti-of silica optical fiber, using the suboptimum of glass fibre, use Ultra-fine steel fibre it is more excellent；Moreover, when oversheath is coloured, pecking for birds being more subject on the contrary and is hit.

The present invention is not limited to above-mentioned preferred forms, it will be appreciated that design of the invention can be by other a variety of shapes Formula is implemented to use, and they are also fallen within protection scope of the present invention.

Claims

1. anti-unfirmly closing optical cable, it includes many Loose tubes, the external series gap positioned at adjacent Loose tube being distributed in outside reinforcer In small gasket for packing, the overcoat outside Loose tube and small gasket for packing, the sheath outside overcoat, positioned at interior shield An optical fiber is comprised at least in oversheath outside layer, every Loose tube, the optical fiber is located among fibre ribbon, light Fibre ribbons are located in Loose tube, it is characterised in that have one to prevent pecking layer between sheath and oversheath, described to prevent pecking layer by weight Meter, is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The trade mark is 617 or the trade mark be 677 epoxy resin：10~20 parts；A diameter of 10~80 μm, the extra-fine steel that length/diameter ratio is 5~20 fibre Dimension or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5~10 Part；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon black is female Grain：5~10 parts.

2. anti-unfirmly closing optical cable, it comprising Loose tube, the water blocking layer outside Loose tube, the overcoat outside water blocking layer, A light is comprised at least in reinforcer outside overcoat, the oversheath outside reinforcer and overcoat, Loose tube Lead fiber, optical fiber be with the formal distribution of bulk in Loose tube or in the fibre ribbon being placed in Loose tube , it is characterised in that have one to prevent pecking layer between overcoat and oversheath, reinforcer, which is located at, to be prevented pecking in layer, and the anti-layer of pecking is by weight Part meter is measured, is made up of following raw material：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；Board Number it is 617 or epoxy resin that the trade mark is 677：10~20 parts；A diameter of 10~80 μm, length/diameter ratio for 5~20 it is ultra-fine Steel fibre or the silica optical fiber that a diameter of 6.5~260 μm, length is 0.03~1mm：40~60 parts；EVA hot-melt adhesive：5 ~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Aluminium hydroxide：15~25 parts；Paraffin：3~9 parts；Carbon Black masterbatch：5~10 parts.

3. a kind of method of the anti-unfirmly closing optical cable made described in claim 2, it is characterised in that it is comprised the steps of：

Second step：The step of making Loose tube：By secondary coated extruding machine formation Loose tube, and by different colours coloured light Fibre is placed into Loose tube, is wound to form Loose tube finished product, makes length of the colored optical fiber in Loose tube long for Loose tube 1.002~1.015 times of degree, the material of Loose tube is polybutylene terephthalate (PBT) or modified polypropene, makes Loose tube When in the material of Loose tube add Loose tube extrusion molding special color master batch；

3rd step：The step of making anti-peck layer：First take waterstop or the yarn material that blocks water be coated on second step formation Loose tube it Outer formation water blocking layer；Take steel band or aluminium strip to be longitudinally coated on outside water blocking layer again and form overcoat；Two reinforcements are taken to place again Outside overcoat；Then by sheath extruding machine, extrusion molding thickness is the anti-of 1.0~3.0mm thickness outside overcoat and reinforcer Peck layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were constituted：Medium density polyethylene or low density polyethylene (LDPE) Or high density polyethylene (HDPE)：50~80 parts；The epoxy resin that the trade mark is 617 or the trade mark is 677：10~20 parts；A diameter of 10~80 μ The titanium dioxide that the ultra-fine steel fibre or a diameter of 6.5~260 μm, length that m, length/diameter ratio are 5~20 are 0.03~1mm Silicon optical fiber：40~60 parts；EVA hot-melt adhesive：5~10 parts；The cable jacket antioxidant of model 1010：3~5 parts；Hydrogen-oxygen Change aluminium：15~25 parts；Paraffin：3~9 parts；Carbon black master batch：5~10 parts；Wherein, two reinforcements are put in overcoat external symmetry Minimum range put and between reinforcer and overcoat is 0.2mm, and reinforcer is away from the anti-minimum range for pecking layer outer rim 0.4mm；

4th step：The step of making oversheath：Protected by sheath extruding machine in anti-peck that the 3rd step is formed outside layer outside extrusion molding cladding Cover material；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or nylon 12；When outer shield When the material of set is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE), oversheath thickness is 1.0~3.0mm； When the material of oversheath is nylon 12, oversheath thickness is 0.4~0.8mm.