CN104614827B

CN104614827B - Anti- unfirmly closing optical cable, anti-unfirmly closing cable and preparation method thereof

Info

Publication number: CN104614827B
Application number: CN201510103920.0A
Authority: CN
Inventors: 彭婷; 赖佩萍
Original assignee: Shenzhen Orwell Communication Technology Co Ltd
Current assignee: Shenzhen Orwell Communication Technology Co., Ltd.
Priority date: 2015-03-10
Filing date: 2015-03-10
Publication date: 2018-01-16
Anticipated expiration: 2035-03-10
Also published as: CN104614827A; WO2016141746A1; CN107450142A

Abstract

The invention belongs to technical field of cables, more particularly, to anti-unfirmly closing optical cable, it includes more 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, anti-unfirmly closing 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 corresponding to 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 more Kind color, after pipping 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, cause the communication failure of unknown cause.More forest land areas at home, such as Hunan, Yunnan, Zhejiang, Guilin Ground, the failure that cable is repeatedly broken by unfirmly closing is had occurred and that, 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, 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, in Loose tube, Loose tube is centered around optical fiber Around reinforcer, wrapped up by band, cable core filled composite is moisture-proof layer outside band, they form cable core, with bag in band There is the copper conductor bed course sheath of copper conductor, they form 8-shaped sheath by sheath, and its sheath is red.Cable can effectively be protected When outdoor is aerial not by unfirmly closing.

It is entitled：Anti- unfirmly closing indoor and outdoor integration photoelectricity composite cable, 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 1 uses after wire 4 is twisted after the vertical bag of painting plastic composite strip 3 together with flame-retardant sheath material 6 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 power failure or batteries failure and cause the effect of power-off of base station；Networking expense is reduced, avoids 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 8 font red sheaths（1）, have steel strand wires in minor diameter red sheath（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 in optical fiber both sides by oversheath together, 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 Sign is：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 Set, cable core is interior to have the fiber unit and center reinforcemen, gasket for packing collectively formed by optical fiber, fine cream, ferrule, and it is special Sign is that it is red sheath and yellow sheath that bundle yarn layer and wrinkle steel belt layer, oversheath are sequentially provided between cable core and oversheath 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 Sheath, cable core is interior to have the fiber unit and center reinforcemen, gasket for packing collectively formed by optical fiber, fine cream, ferrule, its It is characterised by being sequentially provided between cable core and oversheath and pricks yarn layer, inner sheath and wrinkle steel belt layer, 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 twisted two-by-two and forms four pairs of twisted wires pair as information communication（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 is twisted formation and leads 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 twisted 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 in center reinforcemen, feed line, cable, band, communication metal wire 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）Twisted, 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 twisted, 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 font red pe sheaths （11）Minor diameter set in be cased with steel strand wires（12）.

Above-mentioned patent, cable outermost layer is set to take the photograph bird for prestige for all or part of red or other colors bar none Class, it is applicant's understanding that only the color of sheath turns into distinguishing feature for red, utility model patent should not be turned into 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, contain 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 is extremely slow, finished product closes Lattice rate is only 50% or so, and simultaneous manufacturing thickness can only need in below 0.8mm, it is necessary to repeatedly process and can be only achieved anti-peck 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 twisted, 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 the moisture vapor transmission coefficient that more one layers thicker of outermost, so that cable life Extend more than one times；And when electric-field intensity is higher, shielding character improves 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 plays a part of being effective against birds invasion and attack.

Therefore, user expects that there is the anti-of more preferable effect to peck cable, prevent pecking optical cable appearance.

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 more 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 5 ~20 ultra-fine steel fibre either 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 Sheath 5, the oversheath 7 outside sheath, every Loose tube is interior to comprise at least an optical fiber 1, 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 more 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 Sheath 5 outside overcoat, the oversheath 7 outside sheath, every Loose tube is interior to comprise at least an optical fiber 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 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, it is described Optical fiber is located among fibre ribbon, and fibre ribbon is located in Loose tube, it is characterised in that has 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 the ultra-fine steel fibre for 5~20 either 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；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 include 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 is pecked in layer positioned at anti-, 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 includes Loose tube 2, outside Loose tube and by Loose tube Integral coating live multi reinforcements 3, by the securing wrapping layer 9 of multi reinforcements, the sheath 5 outside wrapping layer, Oversheath 7 outside sheath, Loose tube is interior to comprise at least an optical fiber 1, and 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, include cable conductor and positioned at outermost oversheath, its It is characterised by that the inside for being close to oversheath has one to prevent pecking layer, or the inside for being close to oversheath has one to prevent pecking layer, is being 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, 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 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 described above or anti-unfirmly closing cable, 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 gathered 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 gathered 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 are 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：Colored optical fiber by naked colouring optical fibres into different colours；

Second step：The step of making Loose tube：By secondary coated extruding machine formed 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 more different colours Sleeve pipe；

3rd step：The step of making optical cable core：Second step is made into more obtained Loose tubes, the reinforcer purchased Stranding is carried out in SZ stranding machines, makes reinforcer centrally located, more 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 formed：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 are 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 The equally big big gasket for packing of middle gained Loose tube；

4th step：The step of making optical cable core：Second step is made into more 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, more Loose tubes And big gasket for packing is located at outside reinforcer, pitch twisted 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 formed：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 are 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 formed 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；Steel band or aluminium strip is taken longitudinally to be coated on outside water blocking layer and form overcoat again；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 formed：Medium density polyethylene or low-density are gathered 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 in overcoat external symmetry placement 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 When the material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE), 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 Reach more than 60 ms/min, 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, birds peck hit first time after, will injure its puff, therefore without again Peck the desire hit so that cable is effectively protected, and by the use in nearly 3 years forest zones, does 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 has 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 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 of the embodiment 1 of the present invention to embodiment 5 for 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 Outer overcoat 4, the sheath 5 outside overcoat, the oversheath 7 outside sheath, include in 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 Either 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 more, and a light guide fibre is comprised at least in 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 a big gasket for packing being distributed in outside reinforcer 3 21st, the overcoat 4 outside Loose tube and big gasket for packing, the sheath 5 outside overcoat, outside sheath Oversheath 7, every Loose tube is interior to comprise at least an optical fiber 1, it is characterised in that has 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 the ultra-fine steel fibre for 5~20 either 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；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 more, 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, which is included, is distributed in four Loose tubes 2 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 Sheath 5, the oversheath 7 outside sheath, every Loose tube is interior to include ten six roots of sensation optical fibers 1, the optical fiber Among fibre ribbon, fibre ribbon is located in Loose tube, it is characterised in that and 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 Than the ultra-fine steel fibre for 5~20 either 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；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 more, 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 An at least 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 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 Sheath 7, every Loose tube is interior to comprise at least an optical fiber 1, and 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 formed：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 be 5~20 ultra-fine steel fibre or Length is 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 are referred to embodiment 1 and put example 2 with real, only not More one of fibre ribbon making step 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 include Loose tube 2, the water blocking layer 8 outside Loose tube, positioned at water blocking layer it Outer overcoat 4, the reinforcer 3 outside overcoat, the oversheath 7 outside reinforcer and overcoat, in 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 pecks layer positioned at anti- 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 gathered 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 than the ultra-fine steel fibre for 5~20 either 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；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 the Loose tube described in this embodiment.

Embodiment 5

See Fig. 5, anti-unfirmly closing optical cable, what it was lived comprising Loose tube 2, 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 Outer oversheath 7, Loose tube is interior to include 12 optical fibers 1, and 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 have between the sheath and oversheath one anti- 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 the ultra-fine steel fibre for 5~20 either 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；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：First the multi reinforcements integral coating that buying obtains is formed in second step Loose tube outside, multi reinforcements coat in a manner of spiral is twisted, and the twisted pitch of spiral is straight for 100~300 times of reinforcers Footpath, reinforcer are steel wire or fiberglass reinforced plastics；Then obtained polyester will be purchased to prick yarn or other there is some strength 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 is coated on outside the wrapping layer of the 3rd step formation and 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 When the material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE), 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, include cable conductor and positioned at outermost oversheath, its feature It is that the inside for being close to oversheath has one to prevent pecking layer, or the inside for being close to oversheath has one to prevent pecking layer, is being 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 or cable of the prior art.

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 steel band or aluminium strip material is taken longitudinally to be coated on the cable core cable core of first step formation 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-peck layer by what following raw material were formed：Medium density polyethylene or low density polyethylene (LDPE) or high density are gathered 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 than the ultra-fine steel fibre for 5~20 either 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；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 When the material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE), 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 formed：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 than the ultra-fine steel fibre for 5~20 either length be 0.1~1mm, a diameter of 0.03~1mm glass fibre or diameter 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 formed：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 than the ultra-fine steel fibre for 5~20 either length be 0.1~1mm, a diameter of 0.03~1mm glass fibre or diameter 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 formed：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 than the ultra-fine steel fibre for 5~20 either length be 0.1~1mm, a diameter of 0.03~1mm glass fibre or diameter 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 described above or anti-unfirmly closing cable, 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 Reach more than 60 ms/min, 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, birds peck hit first time after, will injure its puff, therefore without again Peck the desire hit so that cable is effectively protected, and by the use in nearly 3 years forest zones, does 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 has stronger anti-side pressure and resistance to punching Hit power.Commercially can is bought for ultra-fine steel fibre or glass fibre, 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 without coat or without covering and the optical fiber fibre core of coat, it might even be possible to ground using optical fiber waste product Pressure, crush, filtering acquisition, reach the useless purpose utilized, reduce 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, and when not having overcoat, 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 greatly increases.In the present invention, oversheath can try one's best without using expensive It nylon, can so cost is declined to a great extent, 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., preferable or conventional black.

Applicant has made using contrast, light for the anti-unfirmly closing optical cable in the application with the optical cable produced by prior art Cable is all aerial laying, 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 using ultra-fine steel fibre, second group using glass fibre, second group using silica light It is fine；Control group is 5#, and using the structure of embodiment 1, 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 respectively uses 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 obtain 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, uses Ultra-fine steel fibre it is more excellent；Moreover, when oversheath is coloured, pecking for birds is 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 and is distributed in more Loose tubes outside reinforcer, the overcoat outside Loose tube, position Sheath outside overcoat, the oversheath outside sheath, every Loose tube is interior to comprise at least an optical fiber, It is characterized in that have one to prevent pecking layer between sheath and oversheath, and it is described to prevent pecking layer by weight, by following raw material structure Into：Medium density polyethylene or low density polyethylene (LDPE) or high density polyethylene (HDPE)：50~80 parts；The ring that the trade mark is 617 or the trade mark is 677 Oxygen tree fat：10~20 parts；A diameter of 10~80 μm, the ultra-fine steel fibre that length/diameter ratio is 5~20 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；It is described anti- Peck what layer was formed by sheath extruding machine extrusion molding.

A kind of 2. method for making the anti-unfirmly closing optical cable described in claim 1, it is characterised in that it is comprised the steps of：

Second step：The step of making Loose tube：By secondary coated extruding machine formed 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 grown 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；It is repeated multiple times, form the Loose tube of more different colours；

3rd step：The step of making optical cable core：More Loose tubes that second step is made to obtain, the reinforcer purchased are in SZ Stranding is carried out in stranding machine, makes reinforcer centrally located, more Loose tubes are located at outside reinforcer, what Loose tube SZ was twisted Pitch 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 core of the 3rd step formation Outer formation overcoat, then extrusion molding low density polyethylene (LDPE) or medium density polyethylene or high-density polyethylene material are formed outside overcoat Sheath, the thickness of sheath is 0.8~2.0mm；

5th step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding thickness is 1.0 outside the sheath that the 4th step is formed The anti-of~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：The poly- second of Midst density Alkene 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 Part；A diameter of 10~80 μm, length/diameter ratio be 5~20 ultra-fine steel 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 antioxygen of model 1010 Agent：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：Protected by sheath extruding machine in anti-peck that the 5th step is formed outside layer outside extrusion molding cladding Cover material, oversheath thickness are 1.4~3.0mm；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or highly dense Spend polyethylene.

3. anti-unfirmly closing optical cable, it includes an at least Loose tube and at least one big gasket for packing, the position being distributed in outside reinforcer Overcoat outside Loose tube and big gasket for packing, the sheath outside overcoat, the oversheath outside sheath, An optical fiber is comprised at least in every Loose tube, it is characterised in that has one to prevent pecking layer between sheath and oversheath, institute State and prevent pecking layer by weight, be 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 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；Stone Wax：3~9 parts；Carbon black master batch：5~10 parts；It is described to prevent pecking what layer was formed by sheath extruding machine extrusion molding.

A kind of 4. method for making the anti-unfirmly closing optical cable described in claim 3, it is characterised in that it is comprised the steps of：

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

4th step：The step of making optical cable core：More Loose tubes that second step is made to obtain, the reinforcer purchased, Obtained big gasket for packing carries out stranding in SZ stranding machines in three steps, makes reinforcer centrally located, more Loose tubes and big Gasket for packing is located at outside reinforcer, and pitch twisted 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 core of the 4th step formation Outer formation overcoat, then extrusion molding low density polyethylene (LDPE) or medium density polyethylene or high-density polyethylene material are formed outside overcoat Sheath, the thickness of sheath is 0.8~2.0mm；

6th step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding thickness is 1.0 outside the sheath that the 5th step is formed The anti-of~3.0mm thickness pecks layer, it is described it is anti-peck layer by weight, anti-peck layer by what following raw material were formed：The poly- second of Midst density Alkene 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 Part；A diameter of 10~80 μm, length/diameter ratio be 5~20 ultra-fine steel 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 antioxygen of model 1010 Agent：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：Protected by sheath extruding machine in anti-peck that the 6th step is formed outside layer outside extrusion molding cladding Cover material, oversheath thickness are 1.4~3.0mm；The material of oversheath is low density polyethylene (LDPE) or medium density polyethylene or highly dense Spend polyethylene.

5. anti-unfirmly closing cable, include cable core and positioned at outermost oversheath, it is characterised in that be close to the interior of oversheath Portion has one to prevent pecking layer, or the inside for being close to oversheath has one to prevent pecking layer, has one to protect being close to the anti-inside for pecking layer Layer；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 gathered 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 than silica optical fiber that the ultra-fine steel fibre for 5~20 or a diameter of 6.5~260 μm, length are 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；Described anti-unfirmly closing cable, it is characterised in that it through the following steps that It is obtained：

Second step：The step of making anti-peck layer：By sheath extruding machine, extrusion molding thickness is outside the cable core that the first step is formed The anti-of 1.0~3.0mm thickness pecks layer；Or steel band or aluminium strip material is taken longitudinally to be coated on the cable core cable core profile of first step formation Into 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 to prevent pecking layer By weight, anti-layer is pecked by what following raw material were formed：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 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；Stone Wax：3~9 parts；Carbon black master batch：5~10 parts；

3rd step：The step of making oversheath：Protected by sheath extruding machine in anti-peck that second 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.