CN106443922A - Flat branched optical cable and manufacturing method thereof - Google Patents
Flat branched optical cable and manufacturing method thereof Download PDFInfo
- Publication number
- CN106443922A CN106443922A CN201610966311.2A CN201610966311A CN106443922A CN 106443922 A CN106443922 A CN 106443922A CN 201610966311 A CN201610966311 A CN 201610966311A CN 106443922 A CN106443922 A CN 106443922A
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- China
- Prior art keywords
- hollow tube
- core rod
- flat
- reinforcement
- sheath
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Classifications
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to a flat branched optical cable and a manufacturing method thereof. The flat branched optical cable comprises an outer sheath and optical fibers arranged in the outer sheath in a sleeved mode, and is characterized in that the outer sheath is flat, a hollow tube is formed in the middle in the flat outer sheath, the optical fibers are arranged in the hollow tube in a loosely sleeved mode, and reinforcing parts are arranged on the two sides in the flat outer sheath respectively in parallel. The flat branched optical cable can be easily stripped and branched from the flat side and is capable of bending easily and high in compressive capacity; the hollow tube and a low-friction-coefficient material are adopted for the sheath, the optical fibers and the hollow tube have a large duty ratio, it can be guaranteed that the optical fiber needing branching can be drawn out of the sheath by a long distance for branching, the rest of the optical fibers can continue to be laid forwards along with the cable, and thus the laying efficiency of the optical cable is improved; the two reinforcing parts are arranged, the outer layer of the outer sheath is a hard high-density polyethylene layer, and thus the optical cable has high tensile performance and compressive performance; the flat branched optical cable is simple and reasonable in structural arrangement, the sheath is formed in a one-off mode when manufactured, the manufacturing cost is low, the weight is small, and branching and laying are easy.
Description
Technical field
The present invention relates to a kind of flat branched cable and its manufacture method.
Background technology
Internet+background under, outdoor leading in cable has swift and violent demand, domestic at present conventional mode be rubber insulated cable
Built on stilts register one's residence or common GYTA/S optical cable is maked somebody a mere figurehead and registered one's residence, in the structure of these optical cables, optical fiber and sheath are tightly combined, and branch is tired
Difficulty, particularly when each household needs 1 to 2 fiber entering households, needs to interrupt other optical fiber and carries out branch's welding, high cost, efficiency
Low, requiring frequently to be branched off into the application scenarios at family, the problems referred to above are especially notable, bringing inconvenience to the branch of laying of optical fiber.
Content of the invention
The technical problem to be solved is to provide one kind flat for the deficiency that above-mentioned prior art exists
Branched cable and its manufacture method, this optical cable is not only simple in structure it is easy to branch and laying, and good mechanical property.
The present invention is that the optical cable technology scheme solving the above problems adopted is：Include oversheath and be sleeved on oversheath
In optical fiber it is characterised in that described oversheath is pancake, in pancake oversheath in the middle of be formed with hollow tube, hollow
Guan Zhongsong is cased with optical fiber, and in pancake oversheath, both sides are parallel respectively installs reinforcement.
By such scheme, described oversheath outer layer is hard high-density polyethylene layer, described hard high-density polyethylene
The case hardness of alkene layer is more than or equal to 58 degree of Shore hardness.
By such scheme, it is 0.2 ~ 05mm that described hard high-density polyethylene layer obtains one-sided thickness.
By such scheme, described pancake is kidney ellipsoid or ellipse.
By such scheme, described fiber number is 1-24 core, and the dutycycle between optical fiber and hollow tube is 10 ~ 60%.
By such scheme, in described hollow tube, it is placed with water blocking yarn or water-proofing powder, constitute Full-dry optical cable.
By such scheme, the coefficient of friction of described hollow tube wall is less than 0.3.
By such scheme, described reinforcement is non-metal reinforcement member (FRP) or metal reinforcement.
By such scheme, the minimum one-sided thickness of described hollow tube wall is 0.3 ~ 1.2mm, hollow tube wall and reinforcement
Minimum interval thickness between part is 0.2 ~ 1mm.
The technical scheme of optical cable manufacture method is：
The optical fiber of coloring and two reinforcements are released with constant tension force, sheath shaping mould is passed through by the rear guide wire of core rod
Tool, extrudes oversheath with extruding machine, reinforcement is in squeezed state in core rod head, makes reinforcement tightly by Position Design
Be embedded in oversheath, hollow tube is formed by core rod conduit, adjusts the internal diameter of hollow tube by controlling core rod internal gas pressure, will
Optical fiber penetrates core rod conduit by guide wire after core rod, suitably adjusts air pressure, reaches required hollow tube aperture, the optical cable warp after depanning
Supercooling shaping equipment, blow-dry device, wind on take-up reel.
By such scheme, water blocking yarn is penetrated core rod together in company with optical fiber.
By such scheme, described sheath mould is that half half is crowded exempts to adjust concentric mould, is wherein light in the middle of core rod
Fine guide wire, after the completion of assembling, its guiding tube exit end face and die cap end face are substantially flush, and form trombone slide pattern, core rod both sides
With a certain distance from having from die cap end face after the completion of the assembling of reinforcement hole exits, form squeeze mode, by controlling reinforcement hole and drawing
Spacing between conduit, to ensure that reinforcement is embedded in sheath, core rod back seat is furnished with guided mode, is guided by guided mode and adds
Strong part and optical fiber penetrate core rod, and after core rod and core rod, guided mode forms the cavity of relative closure, and core rod back seat is furnished with pore, lead to
Cross connection air valve, adjusting gas flow is controlling the internal diameter of optical cable hollow tube.
The invention has the beneficial effects as follows：1st, flat outer jacket structure is so that optical cable is easily from flat sides stripping and branch, and easily
Strong in bending, anti-pressure ability；2nd, sheath adopts hollow tube and low friction coefficient materials, and optical fiber and hollow tube have larger duty
Than it is ensured that need branch optical fiber can longer-range be liftoff extracts branch in sheath, and remaining optical fiber can continue with cable
Lay forward, improve optical cable lays efficiency；The 3rd, two reinforcements are set, and oversheath outer layer is hard high density polyethylene (HDPE)
Layer, makes optical cable possess stronger tension and compressive property；4th, present configuration setting advantages of simple, sheath makes one-shot forming,
Low manufacture cost, lightweight it is easy to branch and laying.
Brief description
Fig. 1 is the radial structure profile of one optical cable embodiment of the present invention.
Fig. 2 is the cross section structure diagram of mould in manufacture method of the present invention.
Specific embodiment
Further illustrate embodiments of the invention below in conjunction with the accompanying drawings.
The example structure of one dry type flat drop optical cable of the present invention is as shown in figure 1, include the outer shield of kidney ellipsoid
Set 1, described oversheath outer layer is hard high-density polyethylene layer, and the case hardness of described hard high-density polyethylene layer is big
In or be equal to 58 degree of Shore hardness, hard high-density polyethylene layer obtain one-sided thickness be 0.3mm.It is formed with the middle of in oversheath
Hollow tube 3, hollow tube is circular hollow pipe, and coefficient of friction is less than 0.3.In hollow tube, pine is cased with optical fiber 4, described fiber number
For 6 cores, the dutycycle between optical fiber and hollow tube is 60%.Water blocking yarn can be placed with described hollow tube.Protect outside kidney ellipsoid
In set, both sides are installed respectively and are inlayed reinforcement 2, and reinforcement is paralleled with hollow tube, and described reinforcement is non-metal reinforcement member
Or braided wires (FRP).The minimum one-sided thickness of described hollow tube wall is 0.6mm, between hollow tube wall and reinforcement
Minimum interval thickness be 0.3mm.
Optical cable adopts one-time formed production method as follows：By the optical fiber of coloring and two reinforcements with constant
Tension force is released, and passes through sheath mould by the rear guide wire of core rod, and water blocking yarn penetrates core rod together in company with optical fiber, at the uniform velocity to
Front haulage, extrudes oversheath with extruding machine, and reinforcement is in squeezed state in core rod head, makes reinforcement by Position Design
Tightly it is embedded in oversheath, hollow tube is formed by core rod conduit, adjusted in hollow tube by controlling core rod internal gas pressure
Footpath, optical fiber is penetrated core rod conduit by guide wire after core rod, suitably adjusts air pressure, reaches required hollow tube aperture, after depanning
Optical cable, through cooling and shaping device, blow-dry device, winds on take-up reel.Described sheath mould is that half half is crowded exempts to adjust
Mould with one heart, including core rod 5, die cap 6, rear guide wire 7, for the guide wire of optical fiber wherein in the middle of core rod, after the completion of assembling, it draws
Conduit outlet end face is substantially flush with die cap end face, formed trombone slide pattern, core rod both sides reinforcement hole exits assembling after the completion of from
Die cap end face has certain distance, forms squeeze mode, by controlling the spacing between reinforcement hole and guiding tube, to ensure reinforcement
Be embedded in sheath, core rod back seat be furnished with guided mode, guide reinforcement by guided mode and optical fiber penetrates core rod, core rod and
After core rod, guided mode forms the cavity of relative closure, and core rod back seat is furnished with pore, and by connecting air valve, adjusting gas flow comes
Control the internal diameter of optical cable hollow tube.
Claims (10)
1. a kind of flat branched cable, includes oversheath and the optical fiber that is sleeved in oversheath it is characterised in that described
Oversheath is pancake, and in pancake oversheath, centre is formed with hollow tube, and in hollow tube, pine is cased with optical fiber, outside pancake
In sheath, both sides are parallel respectively installs reinforcement.
2. the flat branched cable as described in claim 1 is it is characterised in that described oversheath outer layer is hard high density
Polyethylene layer, the case hardness of described hard high-density polyethylene layer is more than or equal to 58 degree of Shore hardness.
3. the flat branched cable as described in claim 2 is it is characterised in that the list of described hard high-density polyethylene layer
Side thickness is 0.2 ~ 05mm.
4. the flat branched cable as described in claim 1 or 2 is it is characterised in that described pancake is kidney ellipsoid or ellipse
Shape.
5. the flat branched cable as described in claim 1 or 2 is it is characterised in that described fiber number is 1-24 core, light
Fine dutycycle and hollow tube between is 10 ~ 60%.
6. the flat branched cable as described in claim 1 or 2 is it is characterised in that be placed with water blocking yarn in described hollow tube
Or water-proofing powder, constitute Full-dry optical cable.
7. the flat branched cable as described in claim 1 or 2 is it is characterised in that the coefficient of friction of described hollow tube wall is low
In 0.3.
8. the flat branched cable as described in claim 1 or 2 is it is characterised in that described reinforcement is non-metal reinforcement member
Or metal reinforcement；The minimum one-sided thickness of described hollow tube wall is 0.3 ~ 1.2mm, between hollow tube wall and reinforcement
Minimum interval thickness be 0.2 ~ 1mm.
9. in a kind of claim 1-8 arbitrary flat branched cable manufacture method it is characterised in that by coloring optical fiber and
Two reinforcements are released with constant tension force, pass through sheath mould by the rear guide wire of core rod, outer with extruding machine extrusion
Sheath, reinforcement is in squeezed state in core rod head, so that reinforcement is tightly embedded in oversheath by Position Design,
Hollow tube is formed by core rod conduit, adjusts the internal diameter of hollow tube by controlling core rod internal gas pressure, optical fiber is guided by after core rod
Pipe penetrates core rod conduit, suitably adjust air pressure, reach required hollow tube aperture, the optical cable after depanning through cooling and shaping device,
Blow-dry device, winds on take-up reel.
10. the manufacture method of the flat branched cable as described in claim 9 is it is characterised in that described sheath mould
Squeeze for half half and exempt to adjust concentric mould, for the guide wire of optical fiber, its guiding tube exit end face after the completion of assembling wherein in the middle of core rod
It is substantially flush with die cap end face, form trombone slide pattern, after the completion of the assembling of core rod both sides reinforcement hole exits, have one from die cap end face
Set a distance, forms squeeze mode, by controlling the spacing between reinforcement hole and guiding tube, to ensure that reinforcement is embedded in sheath
In, core rod back seat is furnished with guided mode, guides by guided mode reinforcement and optical fiber to penetrate core rod, guide after core rod and core rod
Mould forms the cavity of relative closure, and core rod back seat is furnished with pore, and by connecting air valve, adjusting gas flow is controlling in optical cable
The internal diameter of blank pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966311.2A CN106443922A (en) | 2016-11-04 | 2016-11-04 | Flat branched optical cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966311.2A CN106443922A (en) | 2016-11-04 | 2016-11-04 | Flat branched optical cable and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106443922A true CN106443922A (en) | 2017-02-22 |
Family
ID=58180506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966311.2A Pending CN106443922A (en) | 2016-11-04 | 2016-11-04 | Flat branched optical cable and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106443922A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797206A (en) * | 2017-11-30 | 2018-03-13 | 长飞光纤光缆股份有限公司 | The production equipment and its production method of high-density optical-fiber beam micro unit optical cable |
| CN108020893A (en) * | 2018-01-09 | 2018-05-11 | 国网湖北省电力有限公司孝感供电公司 | A kind of electric power optical cable melts fiber coating pipe and its manufacture method |
| CN108072948A (en) * | 2017-12-29 | 2018-05-25 | 山东太平洋光纤光缆有限公司 | A kind of butterfly leading in cable exempts from clear mold |
| CN110576581A (en) * | 2019-10-23 | 2019-12-17 | 广东亨通光电科技有限公司 | Flat optical cable forming die |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101167143A (en) * | 2005-04-29 | 2008-04-23 | 尼克桑斯公司 | Unsheilded twisted pair cable and method for manufacturing the same |
| CN202075471U (en) * | 2011-05-14 | 2011-12-14 | 湖北凯乐科技股份有限公司 | Adjustable catheter type extrusion mold for butterfly form optical cable |
| CN202256798U (en) * | 2011-08-31 | 2012-05-30 | 李泱 | Flat type sensing optical cable |
| CN204666879U (en) * | 2015-04-22 | 2015-09-23 | 佛山市顺德区广意通讯电缆有限公司 | A kind of 8-shaped optical cable half squash type extrusion die |
-
2016
- 2016-11-04 CN CN201610966311.2A patent/CN106443922A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101167143A (en) * | 2005-04-29 | 2008-04-23 | 尼克桑斯公司 | Unsheilded twisted pair cable and method for manufacturing the same |
| CN202075471U (en) * | 2011-05-14 | 2011-12-14 | 湖北凯乐科技股份有限公司 | Adjustable catheter type extrusion mold for butterfly form optical cable |
| CN202256798U (en) * | 2011-08-31 | 2012-05-30 | 李泱 | Flat type sensing optical cable |
| CN204666879U (en) * | 2015-04-22 | 2015-09-23 | 佛山市顺德区广意通讯电缆有限公司 | A kind of 8-shaped optical cable half squash type extrusion die |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797206A (en) * | 2017-11-30 | 2018-03-13 | 长飞光纤光缆股份有限公司 | The production equipment and its production method of high-density optical-fiber beam micro unit optical cable |
| CN108072948A (en) * | 2017-12-29 | 2018-05-25 | 山东太平洋光纤光缆有限公司 | A kind of butterfly leading in cable exempts from clear mold |
| CN108020893A (en) * | 2018-01-09 | 2018-05-11 | 国网湖北省电力有限公司孝感供电公司 | A kind of electric power optical cable melts fiber coating pipe and its manufacture method |
| CN110576581A (en) * | 2019-10-23 | 2019-12-17 | 广东亨通光电科技有限公司 | Flat optical cable forming die |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170222 |