CN104181660B - Manufacturing method of special-shaped optical fiber loose tube - Google Patents

Manufacturing method of special-shaped optical fiber loose tube Download PDF

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Publication number
CN104181660B
CN104181660B CN201410467631.4A CN201410467631A CN104181660B CN 104181660 B CN104181660 B CN 104181660B CN 201410467631 A CN201410467631 A CN 201410467631A CN 104181660 B CN104181660 B CN 104181660B
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CN
China
Prior art keywords
loose tube
core rod
wall body
special
die sleeve
Prior art date
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Active
Application number
CN201410467631.4A
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Chinese (zh)
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CN104181660A (en
Inventor
刘晓艳
亓振新
张斌
徐继凯
陈兴连
朱晓阳
崔东海
边金龙
李祥莹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Laiwu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Laiwu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Laiwu Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410467631.4A priority Critical patent/CN104181660B/en
Priority to CN201610483606.4A priority patent/CN105866909B/en
Priority to CN201610483963.0A priority patent/CN105891984B/en
Publication of CN104181660A publication Critical patent/CN104181660A/en
Application granted granted Critical
Publication of CN104181660B publication Critical patent/CN104181660B/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479Manufacturing methods of optical cables
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479Manufacturing methods of optical cables
    • G02B6/4482Code or colour marking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4415Cables for special applications
    • G02B6/4416Heterogeneous cables
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/443Protective covering
    • G02B6/4432Protective covering with fibre reinforcements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

The invention belongs to the technical field of cables and particularly relates to a special-shaped optical fiber loose tube which comprises a plurality of optical fibers and a loose tube body wrapping the optical fibers. The special-shaped optical fiber loose tube is characterized in that the loose tube body is formed by multiple parts; the loose tube body is formed by bonding the multiple parts in a one-to-one mode or is formed integrally; the inside and the outside of the loose tube body are cylindrical faces. The invention further discloses a manufacturing method of the loose tube and an optical cable utilizing the loose tube. The optical fiber loose tube and the optical cable utilizing the optical fiber loose tube have the advantages of being convenient to manufacture, capable of being recognized more easily and stripped more conveniently, and high in construction efficiency.

Description

The manufacture method of special-shaped optical fibre Loose tube
Technical field
The invention belongs to technical field of cables, especially relate to special-shaped optical fibre Loose tube, the making side of this optical fiber loose tube Method and the optical cable using this Loose tube.
Background technology
In prior art, formed by many Loose tube are stranded in layer-stranding cable, in order to reach the effect of identification, Loose tube Different colors generally will be set to;According to the standard of posts and telecommunications industry, identify that chromatograph is usually: blue, orange, green, brown, grey, white, Red, black, yellow, purple, pink, dark green;And when the Loose tube quantity in twisted layer single in layer-stranding cable is more than 12, be difficult to know Not, can only be identified using the color repeating, all make troubles so to identification and construction.288 cores commonly used in the prior art Layer-stranding cable is made up of 24 Loose tube, and internal layer is 9, and outer layer is 15;Internal layer adopt blue, orange, green, brown, grey, white, red, Black, yellow color;Outer layer adopts blue, orange, green, brown, grey, white, red, black, yellow, purple, pink, dark green, blue, orange, green color;Extremely difficult knowledge Not.
Content of the invention
In order to solve the above problems, the purpose of the present invention is to disclose special-shaped optical fibre Loose tube;Further, the present invention also takes off Show its manufacture method;Additionally, present invention further teaches using the optical cable of this Loose tube, they are to employ the following technical solutions Realize.
In the embodiment 1 of the present invention, special-shaped optical fibre Loose tube, include many optical fiberss 2, optical fiberss are coated The Loose tube 1 lived;It is characterized in that described Loose tube is made up of Part I 11 and Part II 12;Loose tube is by first Formed with the Part II bonding or Part I in Loose tube and Part II is divided to be integrally formed;Loose tube interior Portion and outside are all the faces of cylinder.
In the embodiment 2 of the present invention, special-shaped optical fibre Loose tube, include many optical fiberss 2, optical fiberss are coated The Loose tube 1 lived;It is characterized in that described Loose tube is by Part I 11, Part II 12, Part III 13 and Part IV 14 compositions;Loose tube be by Part I, Part II, Part III, Part IV head and the tail bonding formed or pine set Part I in pipe, Part II, Part III and Part IV are integrally formed;The inside and out of Loose tube is all The face of cylinder.
Further, in the present invention, special-shaped optical fibre Loose tube, include many optical fiberss, optical fiberss are enveloped Loose tube;It is characterized in that described Loose tube is made up of some;Loose tube is to be formed by some head and the tail are bonding Or some in Loose tube is integrally formed;The inside and out of Loose tube is all the face of cylinder.
In the embodiment 3 of the present invention, optical cable, it includes center reinforcemen 3, around stranded many of center reinforcemen Special-shaped optical fibre Loose tube 1 described in root embodiment 1, special-shaped optical fibre Loose tube is coated with protective layer 4, the outer extrusion molding of protective layer It is coated with restrictive coating 5;There are inside special-shaped optical fibre Loose tube many optical fiberss 2.
Optical cable described above it is characterised in that in described many special-shaped optical fibre Loose tube at least one be filled rope Replaced.
In the embodiment 4 of the present invention, optical cable, it includes the first cable core, around many stranded pines of the first cable core The second cable core that sleeve pipe is formed, the second cable core is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5, the first cable core Constitute by center reinforcemen 3, around many stranded common Loose tube of center reinforcemen;It is characterized in that having in the second cable core Special-shaped optical fibre Loose tube 1 described in many common Loose tube 6 and at least one embodiment 1, special-shaped optical fibre Loose tube and general All there are in logical Loose tube optical fiberss 2.
In the embodiment 5 of the present invention, optical cable, it includes center reinforcemen 3, around stranded many of center reinforcemen Special-shaped optical fibre Loose tube 1 described in root embodiment 1 and two power transmission lines 9, special-shaped optical fibre Loose tube and power transmission line are formed Intertwist body is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5;There are inside special-shaped optical fibre Loose tube many light Lead fiber 2;Described power transmission line by conductor 91 and envelopes the insulating barrier 92 of conductor and constitutes.
In the embodiment 6 of the present invention, special-shaped optical fibre Loose tube is it is characterised in that it is to be made using following methods :
The first step: by multiple be wound with fibre-optic disk tool and be arranged on fiber reel put on fine arbor, so that optical fiberss is passed through It is arranged on the core rod hole of extruder head;
Second step: heating extruding machine simultaneously makes plastic melt, and make the plastics of thawing pass through the gap that core rod is formed with die sleeve In;
3rd step: traction optical fiberss and the plastics crossing extrusion head, so that them is entered bosh together and constantly lead Draw formation special-shaped optical fibre Loose tube, described special-shaped optical fibre Loose tube is made up of Part I and Part II;In Loose tube A part and Part II are integrally formed;The inside and out of Loose tube is all the face of cylinder;
Core rod described in above-mentioned second step, has core rod wall body, core rod wall body has and protrudes from the of core rod wall body One convex body 73 and the second convex body 74, the first convex body is located above upper mold core wall body 71, and the second convex body is located at lower mold core Below wall body 72, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and the fore-end of core rod wall body and mould Be truncated cone between the rear end part of core wall body, the front end face 730 of the first convex body be located at core rod wall body front end face 70 it Afterwards, after the front end face 740 of the second convex body is located at the front end face 70 of core rod wall body;Die sleeve described in above-mentioned second step interior Chamber can accommodate core rod wall body, in installment state: a part for the first convex body is embedded in the wall body of the inner chamber of die sleeve, second A part for convex body is embedded in the wall body of the inner chamber of die sleeve, before the front end face of core rod wall body is located at the front end face 80 of die sleeve Face, in addition to the first convex body, the second convex body are contacted with die sleeve, the other parts of core rod are not contacted core rod with die sleeve, and first is convex The chamber that core rod and die sleeve are formed is divided into two independent spaces by shape body, the second convex body.
Special-shaped optical fibre Loose tube in the present invention, the color of every Loose tube is all two or more, therefore, pine set Pipe is provided with more recognition method, makes construction and identification more convenient, meanwhile, so that production is more convenient;In the present invention, Loose tube Some be glued together when, can make Loose tube stripping be more convenient.
Therefore, the present invention has following main beneficial effect: easy to make, more easy to identify, stripping is more convenient;Efficiency of construction Higher.
Brief description
Fig. 1 is the perspective view after one section of stripping of the first embodiment of special-shaped optical fibre Loose tube of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram after Fig. 1 amplification.
Fig. 3 is the perspective view after one section of stripping of the second embodiment of special-shaped optical fibre Loose tube of the present invention.
Fig. 4 is the cross-sectional structure schematic diagram after Fig. 3 amplification.
Fig. 5 uses the stereochemical structure after one section of stripping of the first embodiment of optical cable of this Loose tube for the present invention Schematic diagram.
Fig. 6 is the cross-sectional structure schematic diagram after Fig. 5 amplification.
Fig. 7 uses the stereochemical structure after one section of stripping of the second embodiment of optical cable of this Loose tube for the present invention Schematic diagram.
Fig. 8 is the cross-sectional structure schematic diagram after Fig. 7 amplification.
Fig. 9 uses the cross-sectional structure schematic diagram of the third embodiment of optical cable of this Loose tube for the present invention.
Figure 10 makes used core rod along the parting face structural representation of axis by special-shaped optical fibre Loose tube of the present invention.
Figure 11 is made used core rod by special-shaped optical fibre Loose tube of the present invention and is combined with die sleeve the parting of tailing edge axis Face structural representation.
Specific embodiment
Embodiment 1
Ask for an interview Fig. 1 and Fig. 2, special-shaped optical fibre Loose tube, the pine that include 12 optical fiberss 2, optical fiberss are enveloped Sleeve pipe 1;It is characterized in that described Loose tube is made up of Part I 11 and Part II 12;Loose tube is by Part I and That two parts bondings are formed or that the Part I in Loose tube and Part II are integrally formed;The inside of Loose tube and outer Portion is all the face of cylinder.
Part I described above has different colors from Part II.
Embodiment 2
Ask for an interview Fig. 3 and Fig. 4, special-shaped optical fibre Loose tube, the pine that include 12 optical fiberss 2, optical fiberss are enveloped Sleeve pipe 1;It is characterized in that described Loose tube is made up of Part I 11, Part II 12, Part III 13 and Part IV 14; Loose tube be by Part I, Part II, Part III, Part IV head and the tail bonding formed or Loose tube in the A part, Part II, Part III and Part IV are integrally formed;The inside and out of Loose tube is all the face of cylinder.
Further, in this embodiment, special-shaped optical fibre Loose tube, include many optical fiberss, by optical fiberss bag The Loose tube covering;It is characterized in that described Loose tube is made up of some other;Loose tube is by some head and the tail phases That bonding is formed or that some in Loose tube is integrally formed;The inside and out of Loose tube is all the face of cylinder;Many Individual partly at least there are two kinds of different colors.
In Part I described above, Part II, Part III, Part IV, there is two or more different Color.
Special-shaped optical fibre Loose tube described in above-mentioned embodiment 1 and embodiment 2, described optical fiberss can be other many Root.
Embodiment 3
Ask for an interview Fig. 5 and Fig. 6, and with reference to Fig. 1 and Fig. 2, optical cable, it includes center reinforcemen 3, around center reinforcemen Special-shaped optical fibre Loose tube 1 described in many stranded embodiments 1, special-shaped optical fibre Loose tube is coated with protective layer 4, protection The outer extrusion molding of layer is coated with restrictive coating 5;There are inside special-shaped optical fibre Loose tube many optical fiberss 2;Described Loose tube is by first Points 11 and Part II 12 constitute;Loose tube be formed by the bonding of Part I and Part II or Loose tube in first Part and Part II are integrally formed;The inside and out of Loose tube is all the face of cylinder.
Optical cable described above it is characterised in that in described many special-shaped optical fibre Loose tube at least one be filled rope Replaced.
Embodiment 4
Ask for an interview Fig. 7 and Fig. 8, and with reference to Fig. 1 and Fig. 2, optical cable, it includes the first cable core, stranded around the first cable core The second cable core of being formed of 15 Loose tube, the second cable core is coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5, First cable core is constituted by center reinforcemen 3, around 9 stranded common Loose tube of center reinforcemen;It is characterized in that the second cable There is in core the special-shaped optical fibre Loose tube 1 described in 12 common Loose tube 6 and 3 embodiments 1, special-shaped optical fibre Loose tube and In common Loose tube, all there are optical fiberss 2.
Optical cable described above is it is characterised in that the described Loose tube stranded around the first cable core can be other many; Described common Loose tube quantity can be many of other outside 12, and described special-shaped optical fibre Loose tube can be also 3 in addition its It is many.
Embodiment 5
Ask for an interview Fig. 9, and with reference to Fig. 1 and Fig. 2, optical cable, it includes center reinforcemen 3, stranded around center reinforcemen 4 embodiments 1 described in special-shaped optical fibre Loose tube 1 and two power transmission lines 9, special-shaped optical fibre Loose tube and power transmission line are formed Intertwist body be coated with protective layer 4, the outer extrusion molding of protective layer is coated with restrictive coating 5;There are inside special-shaped optical fibre Loose tube many Optical fiberss 2;Described power transmission line by conductor 91 and envelopes the insulating barrier 92 of conductor and constitutes.
Optical cable described above is it is characterised in that described special-shaped optical fibre Loose tube can be also other many.
Embodiment 6
Ask for an interview Figure 10 and Figure 11, special-shaped optical fibre Loose tube is it is characterised in that it is made using following methods:
The first step: by multiple be wound with fibre-optic disk tool and be arranged on fiber reel put on fine arbor, so that optical fiberss is passed through It is arranged on the core rod hole of extruder head;
Second step: heating extruding machine simultaneously makes plastic melt, and make the plastics of thawing pass through the gap that core rod is formed with die sleeve In;
3rd step: traction optical fiberss and the plastics crossing extrusion head, so that them is entered bosh together and constantly lead Draw formation special-shaped optical fibre Loose tube, described special-shaped optical fibre Loose tube is made up of Part I and Part II;In Loose tube A part and Part II are integrally formed;The inside and out of Loose tube is all the face of cylinder;
Core rod described in above-mentioned second step, has core rod wall body, core rod wall body has and protrudes from the of core rod wall body One convex body 73 and the second convex body 74, the first convex body is located above upper mold core wall body 71, and the second convex body is located at lower mold core Below wall body 72, the fore-end of core rod wall body is less than the rear end part of core rod wall body, and the fore-end of core rod wall body and mould Be truncated cone between the rear end part of core wall body, the front end face 730 of the first convex body be located at core rod wall body front end face 70 it Afterwards, after the front end face 740 of the second convex body is located at the front end face 70 of core rod wall body;Die sleeve described in above-mentioned second step interior Chamber can accommodate core rod wall body, in installment state: a part for the first convex body is embedded in the wall body of the inner chamber of die sleeve, second A part for convex body is embedded in the wall body of the inner chamber of die sleeve, before the front end face of core rod wall body is located at the front end face 80 of die sleeve Face, in addition to the first convex body, the second convex body are contacted with die sleeve, the other parts of core rod are not contacted core rod with die sleeve, and first is convex The chamber that core rod and die sleeve are formed is divided into two independent spaces by shape body, the second convex body.
Certainly, the special-shaped optical fibre Loose tube described in embodiment 2 of the present invention, under the enlightenment of embodiment 6, place skill Art field personnel need not move through performing creative labour, can obtain corresponding manufacture method completely.
When manufacturing special-shaped optical fibre Loose tube, because the chamber that core rod and die sleeve are formed is divided by the first convex body, the second convex body Become two independent spaces, and be integrated in the front end die sleeve chamber in die sleeve chamber, therefore, in the front end in die sleeve chamber, bi-material is converged Close, shape all-in-one-piece special-shaped optical fibre Loose tube, both adhesions are higher, even seamless, from the gap of Figure 11 along a and The b direction of arrow is injected separately into the raw material of different colours, can be provided it is also possible to be carried by single injection machine by two injection machines Formed for rear shunting, the color masterbatch material injecting different colours before converging is mixed, and is the formation of having in same Loose tube The phenomenon of different colours;It is, of course, also possible to form multiple colors, so it is more easy to distinguish.
Special-shaped optical fibre Loose tube in the present invention, the color of every Loose tube is all two or more, therefore, pine set Pipe is provided with more recognition method, makes construction and identification more convenient, meanwhile, so that production is more convenient;In the present invention, Loose tube Some be glued together when, can make Loose tube stripping be more convenient.
Therefore, the present invention has following main beneficial effect: easy to make, more easy to identify, stripping is more convenient;Efficiency of construction Higher.
The present invention is not limited to above-mentioned preferred forms it will be appreciated that the design of the present invention can be by other a variety of shapes Formula is implemented to use, and they also fall within protection scope of the present invention.

Claims (1)

1. the manufacture method of special-shaped optical fibre Loose tube, described special-shaped optical fibre Loose tube include many optical fiberss, will be fine for photoconduction Tie up the Loose tube enveloping;Described Loose tube is made up of Part I and Part II;Part I in Loose tube and second Part is integrally formed;The inside and out of Loose tube is all the face of cylinder;Part I has different face from Part II Color;It is characterized in that described special-shaped optical fibre Loose tube is made using following methods:
The first step: by multiple be wound with fibre-optic disk tool and be arranged on fiber reel put on fine arbor, make optical fiberss pass through installation Core rod hole in extruder head;
Second step: heating extruding machine simultaneously makes plastic melt, and so that the plastics of thawing is passed through in the gap that core rod is formed with die sleeve;
3rd step: traction optical fiberss and the plastics crossing extrusion head, so that them is entered bosh together and constantly draw shape Become special-shaped optical fibre Loose tube, described special-shaped optical fibre Loose tube is made up of Part I and Part II;In Loose tube first Point it is integrally formed with Part II;The inside and out of Loose tube is all the face of cylinder;
Core rod described in second step, has core rod wall body, and core rod wall body has the first convex body protruding from core rod wall body And second convex body, the first convex body is located above upper mold core wall body, and the second convex body is located at below lower mold core wall body, core rod wall The fore-end of body is less than the rear end part of core rod wall body, and the fore-end of core rod wall body divides it with the rearward end of core rod wall body Between be truncated cone, after the front end face of the first convex body is located at the front end face of core rod wall body, the front end face position of the second convex body After the front end face of core rod wall body;The inner chamber of the die sleeve described in above-mentioned second step can accommodate core rod wall body, in installment state When: a part for the first convex body is embedded in the wall body of the inner chamber of die sleeve, and a part for the second convex body is embedded in die sleeve In the wall body of inner chamber, the front end face of core rod wall body is located at before the front end face of die sleeve, and core rod removes the first convex body, the second convex Body contacts outer with die sleeve, and the other parts of core rod are not contacted with die sleeve, and the first convex body, the second convex body are by core rod and die sleeve shape The chamber becoming is divided into two independent spaces;And be integrated in the front end die sleeve chamber in die sleeve chamber.
CN201410467631.4A 2014-09-15 2014-09-15 Manufacturing method of special-shaped optical fiber loose tube Active CN104181660B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201410467631.4A CN104181660B (en) 2014-09-15 2014-09-15 Manufacturing method of special-shaped optical fiber loose tube
CN201610483606.4A CN105866909B (en) 2014-09-15 2014-09-15 A kind of optical cable using special-shaped optical fibre Loose tube
CN201610483963.0A CN105891984B (en) 2014-09-15 2014-09-15 A kind of optical cable and the mold for manufacturing the special-shaped optical fibre Loose tube in the optical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410467631.4A CN104181660B (en) 2014-09-15 2014-09-15 Manufacturing method of special-shaped optical fiber loose tube

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CN201610483606.4A Division CN105866909B (en) 2014-09-15 2014-09-15 A kind of optical cable using special-shaped optical fibre Loose tube
CN201610483963.0A Division CN105891984B (en) 2014-09-15 2014-09-15 A kind of optical cable and the mold for manufacturing the special-shaped optical fibre Loose tube in the optical cable

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CN104181660B true CN104181660B (en) 2017-01-18

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CN201610483963.0A Active CN105891984B (en) 2014-09-15 2014-09-15 A kind of optical cable and the mold for manufacturing the special-shaped optical fibre Loose tube in the optical cable
CN201610483606.4A Active CN105866909B (en) 2014-09-15 2014-09-15 A kind of optical cable using special-shaped optical fibre Loose tube

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CN201610483963.0A Active CN105891984B (en) 2014-09-15 2014-09-15 A kind of optical cable and the mold for manufacturing the special-shaped optical fibre Loose tube in the optical cable
CN201610483606.4A Active CN105866909B (en) 2014-09-15 2014-09-15 A kind of optical cable using special-shaped optical fibre Loose tube

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CN105589158A (en) * 2015-03-16 2016-05-18 沈群华 Manufacturing method of optical cable with special-shaped filling rope
CN108761676B (en) * 2018-04-13 2020-02-28 扬州市兴龙塑料有限公司 Porous optical fiber communication tube
CN113054601B (en) * 2021-03-16 2021-11-12 赣州奥鑫新型建材有限公司 Combined cable pipe socket interface die
CN117761854B (en) * 2024-02-19 2024-04-23 常熟白莲光电科技有限公司 Optical fiber ribbon cable with special-shaped loose sleeve part and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
JP2005300835A (en) * 2004-04-09 2005-10-27 Fujikura Ltd Apparatus and method for coloring optical fiber
CN202929253U (en) * 2012-08-13 2013-05-08 住电光纤光缆(深圳)有限公司 Optical cable
CN203069850U (en) * 2013-01-22 2013-07-17 江苏长飞中利光纤光缆有限公司 Optical cable easy to recognize
CN204086625U (en) * 2014-09-15 2015-01-07 凌卫康 Use the optical cable of special-shaped optical fibre Loose tube

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CN104181660A (en) 2014-12-03
CN105866909B (en) 2019-01-29
CN105891984A (en) 2016-08-24
CN105891984B (en) 2018-12-28
CN105866909A (en) 2016-08-17

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