CN107870402B - Loose-sleeve layer stranded optical cable and cabling device and cabling process thereof - Google Patents
Loose-sleeve layer stranded optical cable and cabling device and cabling process thereof Download PDFInfo
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- CN107870402B CN107870402B CN201711242387.1A CN201711242387A CN107870402B CN 107870402 B CN107870402 B CN 107870402B CN 201711242387 A CN201711242387 A CN 201711242387A CN 107870402 B CN107870402 B CN 107870402B
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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
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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
- G02B6/4434—Central member to take up tensile loads
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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
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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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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Abstract
The invention discloses a loose tube layer stranded optical cable, a cabling device and a cabling process thereof. The invention does not need to tie yarns or tie 1 to 2 yarns, can also ensure the stability and other performances of the cable core structure, has high production efficiency, is not easy to roll up the cable, and can improve the product quality and the yield.
Description
Technical Field
The invention belongs to the technical field of optical communication transmission, and particularly relates to a loose tube layer stranded optical cable, a cabling device and a cabling process thereof.
Background
The existing loose-sleeve layer stranded optical cable cabling mostly adopts a mode of binding yarns by a high-speed yarn binding machine after stranding to fix a cable core so as to keep the stability of the cable core structure. The yarn binding pitch is generally between 20mm and 28mm, the TURNS number is between 6 and 8, and the increase of the speed of the cabling production line is restricted due to the fixed rotating speed of the yarn binding machine, so that the cabling process becomes the bottleneck process in the optical cable production. Meanwhile, the paths, the guide wheels and the discs of the cable cores after yarn binding are worn, so that yarn binding is easy to split, fluff and even yarn breakage, and the cable cores are easy to roll up and break due to yarn binding accumulation during production in the following process, so that quality risk exists.
Disclosure of Invention
The invention aims to provide a loose tube layer stranded optical cable, a cabling device and a cabling process thereof, which do not need to be bundled or need to be bundled less, can also ensure the stability and other performances of a cable core structure, have high production efficiency, are not easy to roll up the cable, and can improve the product quality and the yield.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a loose-sleeve layer-stranded optical cable comprises a center reinforced unit element and a plurality of loose tubes uniformly arranged on the periphery of the center reinforced unit element, wherein the surface of the center reinforced unit element is uniformly sprayed with viscose and then is bonded with all the loose tubes for stranding, and a dry water blocking material is arranged between the center reinforced unit element and the loose tubes.
According to the technical scheme, the viscose is quick-drying glue.
According to the technical scheme, the dry type water-blocking material is water-blocking powder or water-blocking yarn.
According to the technical scheme, the water blocking powder is filled between the adjacent loose tubes.
According to the technical scheme, the material of the central reinforced unit element is metal central reinforced unit element or nonmetal central reinforced unit element (nonmetal can be FRP or KFRP).
According to the technical scheme, the loose tube is an oil filling tube or a full dry type tube, and 2-48 colored optical fibers or 2-24 ribbon optical fibers with 2, 4, 6, 8, 12, 18 or 24 cores are arranged in the loose tube.
The utility model provides a stranding device of loose shell layer stranded cable, is including central enhancement unit spare unwrapping wire unit, pine sleeve pipe unwrapping wire unit, spout gluey unit and transposition unit, it sets up the entrance at the transposition unit to spout gluey unit, the enhancement unit spare that central enhancement unit spare unwrapping wire unit was emitted bonds together with a plurality of pine sleeves that pine sleeve pipe unwrapping wire unit was emitted after spouting gluey unit spraying viscose, gets into the transposition unit again and twists together.
According to the technical scheme, the glue spraying unit comprises a glue spraying ring and a glue supply tank for supplying glue to the glue spraying ring, and the center reinforcing unit element penetrates through the center of the glue spraying ring.
A cabling process of a loose tube layer stranded optical cable cabling device comprises the following steps: the center reinforced unit part paying-off unit pays off the reinforced unit parts, the loose tube paying-off unit pays off a plurality of loose tubes, the glue spraying unit sprays glue on the surface of the center reinforced unit part before the center reinforced unit part and the loose tubes enter the twisting unit, and the loose tubes are adhered to the periphery of the center reinforced unit part and then enter the twisting unit together to be twisted.
According to the technical scheme, the central reinforced unit piece and the loose tube are twisted into the rear surface of the optical cable and are bound with 1 or 2 binding yarns, or the binding yarns are not bound.
The invention has the following beneficial effects: the invention adopts the instantaneous adhesive process, firmly sticks the loose tube around the central reinforced single element, ensures the roundness and compactness of the cable core structure, simultaneously sprays the dry water-blocking material, does not need or needs less yarn binding, can ensure the stability and other performances of the cable core structure, can save the cost and improve the cabling production speed, theoretically improves the production speed by more than two times, and is beneficial to the improvement of the productivity of the optical cable industry; meanwhile, the phenomena of yarn binding splitting, fluffing and even yarn breaking can be avoided or reduced because no or few yarn binding is used, the cable rolling times are greatly reduced, and the product quality and the yield are improved; in addition, because the binding yarn is not used or is used less, the time for cutting and removing the binding yarn can be reduced during construction connection, and the construction efficiency is improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of a loose tube stranded cable stranding apparatus;
FIG. 2 is a schematic structural diagram of a glue spraying unit in the loose tube stranded cable cabling device;
fig. 3 is a schematic structural view of a loose tube stranded cable.
In the figure: the method comprises the following steps of 1-central reinforced unit part, 2-loose sleeve, 3-viscose, 4-water-blocking powder, 5-optical fiber, 6-water-blocking ointment, 7-filling unit, 100-central reinforced unit part paying-off unit, 200-loose sleeve paying-off unit, 300-glue spraying unit, 301-glue spraying ring, 302-glue supplying tank, 303-pipeline, 400-stranding unit, 500-online diameter detection unit, 600-high-speed yarn binding unit and 700-take-up unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in FIG. 3, the loose tube layer stranded optical cable comprises a central reinforced unit element 1 and a plurality of loose tubes 2 uniformly arranged on the periphery of the central reinforced unit element 1, wherein the surface of the central reinforced unit element 1 is uniformly sprayed with glue 3 and then is bonded with all the loose tubes 2 for twisting, and a dry water blocking material is arranged between the central reinforced unit element and the loose tubes. In this embodiment, the adhesive 3 is a new instant adhesive, called fast-drying adhesive, which has the advantages of high adhesive strength, no corrosion, good toughness, high and low temperature resistance (from minus 40 ℃ to plus 70 ℃), no toxicity, no irritation, etc. The dry water-blocking material adopts high-expansion water-blocking powder 4, water-blocking yarn or other dry water-blocking materials, and contains a certain proportion of Super Absorbent Polymer (SAP) particles, so that the water-blocking performance between the central reinforced single element and the loose tube is ensured. When the water-blocking powder is adopted, a set of special water-blocking powder spraying unit with pressure is arranged in the production line, the water-blocking powder can be uniformly filled in gaps between the central reinforcing unit element and the loose tubes and between adjacent loose tubes, and the longitudinal water-blocking performance of the cable core is ensured. When the water-blocking yarn is adopted, a set of special winding and unwinding units are arranged in the production line, and the water-blocking yarn can be simultaneously and straightly wound around the central reinforcing unit element, so that the longitudinal water-blocking performance of the cable core is ensured.
In the preferred embodiment of the present invention, as shown in fig. 3, the central reinforcing unit piece 1 may be a metal reinforcing member, or may be a non-metal reinforcing member, and the non-metal may be FRP or KFRP.
In the preferred embodiment of the present invention, as shown in fig. 3, the loose tube 2 is an oil-filled tube (the inside of the loose tube is filled with water-blocking ointment 6) or a full-dry tube, and the loose tube 2 is filled with 2-48 colored optical fibers or 2-24 ribbon-shaped optical fibers with 2, 4, 6, 8, 12, 18 or 24 cores. In the embodiment, 12 colored optical fibers 5 are filled in the loose tube, water-blocking ointment 6 is filled in the loose tube, the loose tube layer stranded optical cable comprises 11 loose tubes and 1 filling unit 7, the loose tubes and the filling units are stranded around the central reinforcing unit element 1 in an SZ-stranded mode, the surface layer of the central reinforcing unit element is coated with a thin layer of quick-drying glue, and water-blocking powder is sprayed between the loose tubes and the loose tubes. The optical cable has the advantages of uniform diameter, compact structure and good water resistance.
A cabling device of a loose tube layer stranded optical cable is shown in figure 1 and comprises a central reinforced single element paying-off unit 100, a loose tube paying-off unit 200, a glue spraying unit 300 and a twisting unit 400, wherein the glue spraying unit 300 is arranged at the inlet of the twisting unit 400, and the reinforced single element released by the central reinforced single element paying-off unit 100 is adhered with a plurality of loose tubes 2 released by the loose tube paying-off unit 200 after being sprayed with glue 3 by the glue spraying unit 300 and then enters the twisting unit 400 for twisting.
In the preferred embodiment of the present invention, as shown in fig. 2, the glue spraying unit 300 includes a glue spraying ring 301 and a glue supply tank 302 for supplying glue 3 to the glue spraying ring 301, and the central reinforcement unit piece 1 passes through the center of the glue spraying ring 301. In this embodiment, the glue spraying unit is controlled by two glue supply tanks 302, a special material pipe 303 and some pressure systems, so as to ensure stable and balanced glue discharging. When the cable core works, the central reinforced unit element is uniformly coated with a layer of quick-drying glue with proper thickness after passing through the glue spraying ring in the advancing process, and simultaneously enters the stranding unit together with the 5 loose tubes to be stranded, bonded and quickly dried to form the cable core.
A cabling process of a loose tube layer stranded optical cable cabling device is shown in figure 1, and comprises the following steps: the method comprises the steps that a reinforcing unit piece is discharged from a central reinforcing unit piece paying-off unit 100, a plurality of loose tubes 2 are discharged from a loose tube paying-off unit 200, glue 3 is sprayed to the surface of the central reinforcing unit piece 1 by a glue spraying unit 300 before the central reinforcing unit piece 1 and the loose tubes 2 enter a twisting unit 400, and the plurality of loose tubes 2 are bonded on the periphery of the central reinforcing unit piece 1 and then enter the twisting unit 400 together for twisting.
The cable core is directly used for processing in the following process without binding yarn, but for the cable core with larger core diameter, as shown in fig. 1, the central reinforced single element 1 and the loose tube 2 are twisted into the cable, and the rear surface of the cable is bound by 1 or 2 binding yarns by the high-speed binding unit 600, so that the cable core structure is more stable, but the pitch can be enlarged by more than two times compared with the prior art, the number of TURNS is reduced from 5-8 in the conventional process to 1-3, and the production speed can be theoretically improved by more than two times.
In a specific application of the invention, as shown in fig. 1, the cabling device of the loose tube layer stranded optical cable comprises a central reinforced single element paying-off unit 100, an online diameter detection unit 500, a loose tube paying-off unit 200, a glue spraying unit 300, a twisting unit 400, a high-speed yarn binding unit 600, a wire collecting unit 700 and a computer controller connected with all the units, wherein the computer controller is used for realizing the automatic production of the device, and the wire collecting unit 700 comprises an anti-scraping mechanism and an automatic wire collecting mechanism with a mechanical arm.
When the cable core winding device works, a certain number of loose tubes are discharged through the loose tube paying-off unit 200 after detection of the online diameter detection unit 500, the central reinforcing unit element is uniformly coated with a thin layer of quick-drying glue at the glue spraying unit 300, the loose tubes and the central reinforcing unit element coated with the quick-drying glue are gathered at the twisting unit 400 and then twisted together to form a cable core, meanwhile, high-water-absorption resin is sprayed, the cable core is wound with 1 or 2 binding yarns at the high-speed binding unit 600 as required, and the cable core is wound on a winding disc through the winding unit 700 according to length after being produced and is provided for a sheath process to continue production.
The invention solves the problem that the cabling process in the cable industry is limited by the rotating speed of the yarn binding machine for a long time and cannot be produced at high speed, solves the bottleneck that the cabling process is slow, greatly improves the cabling speed, is beneficial to improving the productivity of the optical cable industry, and produces more optical cables to meet the market demand. The invention is improved on the existing cabling equipment, the length of the stranding unit can be shortened by more than 50%, the field and equipment investment are saved, and key indexes of the produced optical cable such as temperature performance, environmental performance, tensile force performance and the like are superior to the industrial and international standards.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (9)
1. The loose-sleeve layer-stranded optical cable is characterized by comprising a central reinforced unit element and a plurality of loose tubes uniformly arranged on the periphery of the central reinforced unit element, wherein the surface of the central reinforced unit element is uniformly coated with viscose glue and then is bonded with all the loose tubes for stranding, the viscose glue is quick-drying glue, and a dry water-blocking material is arranged between the central reinforced unit element and the loose tubes.
2. The loose-tube stranded optical cable of claim 1, wherein the dry water-blocking material is water-blocking powder or a water-blocking yarn.
3. The loose tube stranded optical cable of claim 1, wherein the water-blocking powder is filled between adjacent loose tubes.
4. The loose-lay optical cable of claim 1 wherein the central strength element is a metallic central strength element or a non-metallic central strength element.
5. The loose tube stranded optical cable of claim 1, wherein the loose tube is an oil-filled tube or a full dry tube, and the loose tube contains 2-48 colored optical fibers or 2-24 2, 4, 6, 8, 12, 18 or 24 core ribbon optical fibers.
6. A cabling device for the loose tube layer stranded optical cable according to any one of claims 1-5, comprising a central reinforced single unit element paying-off unit, a loose tube paying-off unit, a glue spraying unit and a twisting unit, wherein the glue spraying unit is arranged at the entrance of the twisting unit, the reinforced single unit element paid off by the central reinforced single unit element paying-off unit is sprayed with glue by the glue spraying unit and then is bonded with a plurality of loose tubes paid off by the loose tube paying-off unit, and the bonded loose tubes and the glue are twisted together in the twisting unit, and the glue is quick-drying glue.
7. The cabling apparatus for loose tube stranded optical cable according to claim 6, wherein the glue spraying unit comprises a glue spraying ring and a glue supplying tank for supplying glue to the glue spraying ring, and the central strength unit member passes through the center of the glue spraying ring.
8. A cabling process based on the loose tube stranded cable cabling device of any of claims 6-7, comprising the steps of: the reinforced single element paying-off unit comprises a central reinforced single element paying-off unit, a loose tube paying-off unit and a glue spraying unit, wherein the central reinforced single element paying-off unit is connected with the loose tube paying-off unit through a hinge, the glue spraying unit is connected with the center reinforced single element paying-off unit through a hinge, the center reinforced single element paying-off unit is connected with the loose tube paying-off unit through a hinge.
9. The cabling process for the loose tube layer stranded optical cable cabling device according to claim 8, wherein the central strength unit piece and the loose tube are stranded into the rear surface of the optical cable with 1 or 2 binder yarns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711242387.1A CN107870402B (en) | 2017-11-30 | 2017-11-30 | Loose-sleeve layer stranded optical cable and cabling device and cabling process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711242387.1A CN107870402B (en) | 2017-11-30 | 2017-11-30 | Loose-sleeve layer stranded optical cable and cabling device and cabling process thereof |
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| CN107870402A CN107870402A (en) | 2018-04-03 |
| CN107870402B true CN107870402B (en) | 2020-01-14 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358399B (en) * | 2018-12-03 | 2020-11-03 | 江苏南方通信科技有限公司 | Layer-stranded miniature optical cable series production device and production process thereof |
| WO2020140246A1 (en) * | 2019-01-04 | 2020-07-09 | 南京华信藤仓光通信有限公司 | Non-metallic layer twisted reversal point positioning optical cable and detection method therefor |
| CN109931877B (en) * | 2019-04-24 | 2021-07-27 | 山东省科学院激光研究所 | Strain optical cable and manufacturing method thereof |
| CN110333585B (en) * | 2019-06-21 | 2021-08-10 | 烽火通信科技股份有限公司 | Non-bundled yarn layer stranded optical cable and manufacturing method thereof |
| US11791067B2 (en) | 2019-08-29 | 2023-10-17 | Corning Research & Development Corporation | Methods for bonding stranded cable subunits to central member |
| CN114137679B (en) * | 2021-12-08 | 2022-12-06 | 长飞光纤光缆股份有限公司 | Manufacturing method of layer-stranded dry optical cable with large core number |
| CN116047034A (en) * | 2022-12-19 | 2023-05-02 | 长飞光纤光缆股份有限公司 | Water-blocking yarn on-line detection method and system |
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| CN201075141Y (en) * | 2007-06-29 | 2008-06-18 | 江苏永鼎股份有限公司 | New type full medium self-bearing type optical cable |
| CN103698865A (en) * | 2013-11-14 | 2014-04-02 | 江苏南方通信科技有限公司 | Production line and production technology for bonding central pipe type optical cable sleeve |
| CN204044417U (en) * | 2014-09-17 | 2014-12-24 | 长飞光纤光缆股份有限公司 | A kind of Full dry type layer stranded cables |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2510876Y (en) * | 2001-12-11 | 2002-09-11 | 佛山中宝光缆有限公司 | Semi-dry laminar-twisted out-door communication optical cable structure |
| CN202189174U (en) * | 2011-08-19 | 2012-04-11 | 长飞光纤光缆有限公司 | Tensile loose jacketed stranded optical cable |
| CN104714283B (en) * | 2015-03-20 | 2018-03-09 | 西安西古光通信有限公司 | A kind of mixed type loose jacketed stranded optical cable and preparation method thereof |
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- 2017-11-30 CN CN201711242387.1A patent/CN107870402B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075141Y (en) * | 2007-06-29 | 2008-06-18 | 江苏永鼎股份有限公司 | New type full medium self-bearing type optical cable |
| CN103698865A (en) * | 2013-11-14 | 2014-04-02 | 江苏南方通信科技有限公司 | Production line and production technology for bonding central pipe type optical cable sleeve |
| CN204044417U (en) * | 2014-09-17 | 2014-12-24 | 长飞光纤光缆股份有限公司 | A kind of Full dry type layer stranded cables |
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Effective date of registration: 20220509 Address after: 515041 No. 15 east science and technology road, hi tech Zone, Guangdong, Shantou Patentee after: SHANTOU HIGH-TECH ZONE AOXING OPTICAL COMMUNICATION EQUIPMENT Co.,Ltd. Patentee after: Changfei optical fiber and cable Co., Ltd Address before: 430073 Optics Valley Avenue, East Lake New Technology Development Zone, Wuhan, Hubei, 9 Patentee before: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK Ltd. |
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