CN114236720A - Multi-core side-by-side tight fiber sheathing and production mold and method - Google Patents
Multi-core side-by-side tight fiber sheathing and production mold and method Download PDFInfo
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- CN114236720A CN114236720A CN202111494902.1A CN202111494902A CN114236720A CN 114236720 A CN114236720 A CN 114236720A CN 202111494902 A CN202111494902 A CN 202111494902A CN 114236720 A CN114236720 A CN 114236720A
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4403—Optical cables with ribbon structure
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/448—Ribbon cables
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a multi-core parallel tight jacketed fiber, a production mold and a use method, relating to the technical field of optical communication technology, comprising a first optical fiber array component, a second optical fiber array component and a parallel tight jacketed fiber, wherein the parallel tight jacketed fiber comprises a plurality of colored optical fibers, and the surface of each colored optical fiber is provided with a Hytrel transparent outer sheath; the optical fiber enters the internal mold through the special distribution board; the optical fiber unit is selected, Hytrel material is used as a coating unit to complete the parallel tight sleeving production through a tight sleeving fiber production line and a clearance mechanism of a die sleeve and a die core, and the transparent Hytrel outer protective material is adopted to combine a plurality of colored optical fibers together in one-step forming, so that the convenience in construction is improved, the wiring is more attractive, the size is small, the weight is light, the number of cores is large, the structure is compact, the mechanical property strength is high, the flexibility is good, and the effects of tensile resistance, side pressure resistance and high temperature retraction resistance are good.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to a multi-core side-by-side tight-sleeved fiber, a production mold and a production method.
Background
The optical fiber is the abbreviation of optical fiber, a fibre by glass or plastics make, can regard as the light conduction instrument, along with the maturation gradually of optical fiber technology, and people's ability requirement to information acquisition increases day by day, more and more users begin to select the light access technique to realize the high-speed of access network, wide banding and intellectuality, tight set fibre tensile, compressive strength etc. that produce at present are not high, and tight set fibre is mostly single array on the market, the winding displacement needs the coil when packing into the terminal box, low strength, influence the efficiency of construction, it is not pleasing to the eye enough.
Disclosure of Invention
The invention aims to provide a multi-core side-by-side tight jacketed fiber, a production mold and a use method, wherein a plurality of colored optical fibers are formed and combined together at one time by adopting a transparent Hytrel outer protective material and can be independently and separately used, the convenience in construction is improved, meanwhile, the wiring is more attractive, the size is small, the weight is light, the number of cores is large, the structure is compact, the mechanical property strength is high, the flexibility is good, and the effects of good tensile strength, lateral pressure resistance and high-temperature retraction resistance are achieved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multicore is tight to be overlapped fine side by side, includes optical fiber array subassembly one, optical fiber array subassembly two and is tight to be overlapped fine side by side, tight both ends of overlapping fine side by side respectively with optical fiber array subassembly one with two coupling connections of optical fiber array subassembly, tight middle part cover of overlapping fine side by side is equipped with the lag, tight overlapping fine side by side includes a plurality of colored optic fibre, and every colored optic fibre's surface all is provided with transparent outer jacket, per two connect through the connecting piece between the transparent outer jacket.
Optionally, the protective sleeve sequentially comprises a flame retardant layer, a waterproof layer, a reinforcing layer and an outer protective layer from inside to outside.
Optionally, the waterproof layer is a water-blocking tape, a tearing rope is arranged in the water-blocking tape, and the tearing rope is formed by twisting two strands of 1100D aramid fibers.
Optionally, the flame-retardant layer ceramic vulcanized silicone rubber composite belt is formed by winding and coating.
Optionally, the outer protective layer is made of high density polyethylene.
Optionally, the edge of the protective sleeve is an arc-shaped edge, and when the protective sleeve is installed and laid, the arc-shaped edge cannot scratch surrounding articles or constructors.
The invention also provides a use method of the multi-core side-by-side tight fiber sheathing and a production mold, which comprises the following steps:
the method comprises the following steps: designing a mold core and a mold sleeve of a plastic extruding machine mold in a tight sleeve production line;
step two: the optical fiber enters the internal mold through the special distribution board;
step three: an optical fiber unit is selected, Hytrel material is used as a coating unit, and the tight sleeving production line and the clearance mechanism of the die sleeve and the die core are used for completing the production of tight sleeving.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the structure of the invention adopts transparent Hytrel outer protective material to form and combine a plurality of colored optical fibers together at one time, and the colored optical fibers can be independently and separately used, thereby not only improving the convenience in construction, but also having more beautiful wiring, small volume, light weight, more cores, compact structure, high mechanical property strength and good flexibility, being respectively used as jumper wires, and the cable is more beautiful after the construction of the parallel optical cables, and having very good tensile resistance, side pressure resistance and high temperature retraction resistance.
The Hytrel sheath material has good tensile, compressive and high-temperature resistance, the transparent material can directly see the state of the optical fiber, the problems of difficulty in troubleshooting after a single wire is damaged and the like are solved, the fault point can be quickly positioned when a red light pen is used for troubleshooting, the problems can be quickly and efficiently solved, and the construction and later maintenance costs are greatly reduced.
The invention provides a light multi-core parallel-tightening sleeve fiber with high tensile property, torsion resistance and smaller bending radius, which can be suitable for terminal boxes with smaller size, reduce the construction cost and prolong the service life.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the protective sleeve of the present invention;
FIG. 3 is a front view of a side-by-side tight fiber optic ferrule configuration of the present invention;
FIG. 4 is an enlarged view of the structure A in FIG. 3 according to the present invention;
FIG. 5 is an isometric view of a die sleeve structure of the present invention;
FIG. 6 is an isometric view of the core structure of the present invention;
FIG. 7 is a schematic view of the mold core assembly of the present invention;
FIG. 8 is a flow chart of a tight buffered fiber production line of the present invention.
In the figure: 1. tightly sleeving the fibers side by side; 11. coloring the optical fiber; 12. hytrel transparent outer protection; 13. a connecting member; 2. a protective sleeve; 21. a flame retardant layer; 22. a waterproof layer; 23. a reinforcing layer; 24. an outer protective layer; 3. a first optical fiber array component; 4. and a second optical fiber array component.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 to 8, the present invention provides a technical solution: a multicore is tight to be set fine and production mould side by side, including optical fiber array assembly one 3, optical fiber array assembly two 4 and tight to be set fine 1 side by side, the both ends of tight to be set fine 1 side by side are coupled with optical fiber array assembly one 3 and optical fiber array assembly two 4 respectively, the middle part of tight to be set fine 1 side by side is covered with the lag 2, tight to be set fine 1 side by side includes a plurality of colored optic fibre 11, and the surface of each colored optic fibre 11 all has transparent outer jacket 12, connect through connecting piece 13 between every two transparent outer jackets 12, when using, through adopting transparent Hytrel outer protective material once-forming to combine together many colored optic fibre, can separate the use independently, and add inserts such as FC, SC to use after separating respectively, this product performance is superior to single tight to set fine in every respect, and the product derived in the later stage can be applied to the instrument, communication interconnection apparatus extensively; a tail cable, a movable connecting line and a jumper of the communication terminal box equipment; the optical cable can also be used as the cable core of optical cables such as bundle cables, the adhesion probability of the cable core and a sheath is greatly reduced, the practicability of the optical cable is improved, the convenience in construction is improved, meanwhile, the wiring is more attractive, the size is small, the weight is light, the number of cores is large, the structure is compact, the mechanical performance strength is high, the flexibility is good, the optical cable can be used as a jumper respectively, the arrangement is more attractive after the parallel optical cable construction, the tensile strength, the side pressure resistance and the high-temperature retraction resistance are good, the optical fiber state can be directly seen by adopting the Hytrel transparent outer protection 12, the problems that the fault troubleshooting is difficult after a single line is damaged are solved, the fault point can be quickly positioned when a red light pen is used for troubleshooting, the problems are solved quickly and efficiently, and the construction and later maintenance costs are greatly reduced.
In order to improve the stability of the side-by-side tight jacketing fiber 1 during use, the jacketing 2 further comprises a flame retardant layer 21, a waterproof layer 22, a reinforcing layer 23 and an outer protective layer 24 from inside to outside.
Further, waterproof layer 22 is the waterproofing strip, is equipped with the tear rope in the waterproofing strip, tears the rope for two strands of 1100D aramid fiber transposition, through setting up waterproof layer 22 steric hindrance hosepipe, when lag 2 is damaged, the water blocking material absorbs the moisture inflation to block the passageway that water flowed into the optical cable, make water restricted in very little within range, prevent that optic fibre is impaired.
Furthermore, the flame-retardant layer 21 is formed by winding and coating a ceramic vulcanized silicone rubber composite belt, when the ceramic vulcanized silicone rubber composite belt is used, the flame-retardant layer 21 is arranged, the ceramic vulcanized silicone rubber composite belt has high fire resistance level which can reach A level, can ensure the smoothness of a line under the condition of fire, has high strength, softness, elasticity, self-adhesion, good sealing property, excellent mechanical property and electrical insulation property, ensures that the burned smoke is harmless to human bodies, has low smoke, no halogen, no phosphorus and nitrogen, no heavy metal and no toxicity, ensures that the smoke toxicity safety level reaches the safety level ZA1 of a high polymer material, and improves the safety of the optical fiber when in use.
Furthermore, the reinforcing layer 23 is made of aramid yarns, the outer protective layer 24 is made of high-density polyethylene materials, and the reinforcing layer 23 is made of aramid yarns when the composite material is used, so that the aramid yarns have special performances of small density, very high tensile modulus, high breaking strength, low breaking elongation and the like; the high-density polyethylene optical fiber can maintain inherent stability at higher temperature, has higher corrosion resistance and is non-conductive, is an excellent optical cable reinforcing unit material, is a high-density polyethylene material, has excellent low-temperature resistance and chemical stability, can resist corrosion of most of acid and alkali, has small water absorption and excellent electrical insulation, and improves the stability of the optical fiber in use.
The second embodiment is different from the first embodiment in that:
furthermore, the protective sleeve 2 and the side-by-side tight sleeve fiber 1 are filled with sealant, so that external water is prevented from permeating the optical fiber through gaps, and the waterproof performance is improved.
Referring to fig. 1 to 8, a method for using a multi-core side-by-side tight fiber sheathing and a production mold includes the following steps:
step S1: designing a mold core 6 and a mold sleeve 7 of a plastic extruding machine mold in a tight sleeve production line;
step S2: the optical fiber enters the internal mold through the special distribution board;
step S3: an optical fiber unit is selected, and Hytrel material is used as a coating unit to complete the production of the tightly sleeved fiber 1 through a tightly sleeved fiber production line and a gap mechanism between the die sleeve 7 and the die core 6.
The working principle is as follows: the multicore parallel-tight jacketed fiber and the production mold have the advantages that during production, the number of wiring in a terminal box is increased for coping with increase, the wiring is more dense, the wiring construction cost is high, the product is formed in one step by a plurality of colored fibers through Hytrel outer protective materials, the production and construction cost is reduced, the transparent Hytrel outer protective materials are adopted, the problem can be quickly positioned when fault points are checked in the later period, the problem can be quickly and efficiently solved, the construction and later maintenance cost is greatly reduced, the colored optical fiber 11 communication units are well arranged and formed in one step by wrapping Hytrel materials, the parallel-tight jacketed fiber is formed, one-time thermal stripping can be carried out, repeated stripping is avoided, the working efficiency is improved, the optical cable can be simpler and more convenient, the cable is more attractive to use, the multicore parallel-tight jacketed fiber and the production mold can adapt to a smaller terminal box, the installation space is saved, the construction cost is reduced, the service life is prolonged, and the maintenance cost in the later period of cable communication is reduced;
the optical fiber state can be directly seen by adopting the Hytrel transparent outer protection 12, the problems that troubleshooting is difficult after a single wire is damaged and the like are solved, the fault point can be quickly positioned when being debugged by a red light pen, the problems can be quickly and efficiently solved, and the construction cost and the later maintenance cost are greatly reduced;
the tensile, compression and torsion resistance of the communication optical cable are important performance indexes of the optical cable, the tight-buffered fibers in the design can arrange multiple tight-buffered fibers together, and the tight-buffered fibers are respectively added with FC, SC and other plug-ins for use after separation, the product has performance superior to that of a single tight-buffered fiber in all aspects, and the later-derived product can be widely applied to instruments and communication interconnection equipment; a tail cable, a movable connecting line and a jumper of the communication terminal box equipment; the cable core can also be used as the cable core of optical cables such as bundle cables and the like, so that the adhesion probability of the cable core and the sheath is greatly reduced, and the practicability of the product is improved;
the surface of the side-by-side tight jacketed fiber 1 is provided with the protective sleeve 2, the protective sleeve 2 sequentially comprises the flame-retardant layer 21, the waterproof layer 22, the reinforcing layer 23 and the outer protective layer 24 from inside to outside, the flame-retardant layer 21 is a ceramic vulcanized silicone rubber composite belt, the ceramic vulcanized silicone rubber composite belt has high fire-resistant grade which can reach A grade, the smoothness of a line under the condition of fire can be guaranteed, the strength is high, the ceramic vulcanized silicone rubber composite belt is soft and elastic, has self-adhesion and good sealing property, the mechanical property is excellent, the electrical insulation property is excellent, the burned smoke is harmless to a human body, low smoke, zero halogen, no phosphorus and nitrogen, no heavy metal and no toxicity are realized, the smoke toxicity safety grade reaches the safety grade ZA1 grade of a high polymer material, and the safety of the optical fiber during use is improved;
by arranging the waterproof layer 22 to block the water band, when the protective sleeve 2 is damaged, the water blocking material absorbs water to expand, so that the water is blocked from flowing into a channel of the optical cable, and the water is limited in a small range; the optical fiber can maintain inherent stability at higher temperature, has higher corrosion resistance and is non-conductive, so that the optical fiber is a superior optical cable reinforcing unit material, and the stability of the optical fiber in use is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A multicore is tight set fine side by side which characterized in that: including optical fiber array subassembly one (3), optical fiber array subassembly two (4) and tight cover fibre (1) side by side, the both ends of tight cover fibre (1) side by side respectively with optical fiber array subassembly one (3) with two (4) coupling of optical fiber array subassembly are connected, the middle part cover of tight cover fibre (1) side by side is equipped with lag (2), tight cover fibre (1) side by side includes a plurality of colored optic fibre (11), and every the surface of colored optic fibre (11) all is provided with transparent outer jacket of Hytrel (12), every two connect through connecting piece (13) between the transparent outer jacket of Hytrel (12).
2. The multiple core side by side tight jacketed fiber of claim 1, wherein: the protective sleeve (2) sequentially comprises a flame-retardant layer (21), a waterproof layer (22), a reinforcing layer (23) and an outer protective layer (24) from inside to outside.
3. The multiple core side by side tight jacketed fiber of claim 2, wherein: the waterproof layer (22) is a water-blocking tape, a tearing rope is arranged in the water-blocking tape, and the tearing rope is formed by twisting two strands of 1100D aramid fibers.
4. The multifiber side-by-side tight-buffered fiber of claim 2 or 3, wherein: the flame-retardant layer (21) is formed by winding and coating a ceramic vulcanized silicone rubber composite belt.
5. The multiple core side by side tight jacketed fiber of claim 4, wherein: the reinforcing layer (23) is made of aramid yarn, and the outer protective layer (24) is made of high-density polyethylene material.
6. The multiple core side by side tight jacketed fiber of claim 1, wherein: and sealant is filled between the protective sleeve (2) and the side-by-side tight sleeving fiber (1).
7. The multiple core side by side tight jacketed fiber of claim 1, wherein: the edge of the protective sleeve (2) is an arc-shaped edge, so that when the protective sleeve is installed and laid, the arc-shaped edge cannot scratch surrounding articles or constructors.
8. A method of using the multiple core side by side tight fiber sheathing and production mold of claim 1, comprising the steps of:
step S1: designing a mold core (6) and a mold sleeve (7) of an extruding machine mold of a tight sleeve production line;
step S2: the optical fiber enters the internal mold through the special distribution board;
step S3: an optical fiber unit is selected, Hytrel material is used as a coating unit, and the tight-jacketed fiber (1) is produced by a tight-jacketed fiber production line and a clearance mechanism of a die sleeve (7) and a die core (6).
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| CN202111494902.1A CN114236720A (en) | 2021-12-09 | 2021-12-09 | Multi-core side-by-side tight fiber sheathing and production mold and method |
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| CN202111494902.1A CN114236720A (en) | 2021-12-09 | 2021-12-09 | Multi-core side-by-side tight fiber sheathing and production mold and method |
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| CN105988160A (en) * | 2015-02-10 | 2016-10-05 | 华为技术有限公司 | Fiber and manufacture system and method thereof |
| CN206400153U (en) * | 2016-08-22 | 2017-08-11 | 长光通信科技江苏有限公司 | A kind of strip-like flat optical cable |
| CN206431338U (en) * | 2017-03-20 | 2017-08-22 | 长飞光纤光缆(上海)有限公司 | A kind of low retraction access optical cable of small size high-performance |
| CN206672665U (en) * | 2017-03-24 | 2017-11-24 | 浙江立洲线缆有限公司 | The flat composite cable of high intensity |
| CN207799196U (en) * | 2018-02-13 | 2018-08-31 | 德阳汇川科技有限公司 | A kind of novel optical fiber band flat indoor optical cable |
| CN208507252U (en) * | 2018-08-06 | 2019-02-15 | 南京华脉科技股份有限公司 | A kind of express elevator optoelectronic composite cable |
| CN208847900U (en) * | 2018-09-29 | 2019-05-10 | 南京华脉科技股份有限公司 | A kind of two core Waterproof Pigtail Cables |
| CN113341515A (en) * | 2020-12-15 | 2021-09-03 | 南京华信藤仓光通信有限公司 | Special-shaped branch optical cable applied to machine room |
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