CN115236813B - Net-shaped optical fiber ribbon and manufacturing method thereof - Google Patents
Net-shaped optical fiber ribbon and manufacturing method thereof Download PDFInfo
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- CN115236813B CN115236813B CN202210849190.9A CN202210849190A CN115236813B CN 115236813 B CN115236813 B CN 115236813B CN 202210849190 A CN202210849190 A CN 202210849190A CN 115236813 B CN115236813 B CN 115236813B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 117
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 230000001788 irregular Effects 0.000 claims abstract description 29
- 238000013012 foaming technology Methods 0.000 claims abstract description 12
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims description 42
- 229920005989 resin Polymers 0.000 claims description 42
- 238000000576 coating method Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000003848 UV Light-Curing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000345998 Calamus manan Species 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0245—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D28/00—Producing nets or the like, e.g. meshes, lattices
- B29D28/005—Reticulated structure comprising reinforcements of substantial or continuous length
-
- 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
-
- 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
- G02B6/4483—Injection or filling devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention relates to a net-shaped optical fiber ribbon, which comprises a semi-regular structure and a completely irregular structure, wherein the semi-regular structure is formed by combining a plurality of single regular optical fibers, the semi-regular structure comprises long bonding points and short bonding points, and the long bonding points and the short bonding points are alternately combined to form a net-shaped structure; the completely irregular structure is formed by a foaming technology, and the glue supply pressure fluctuates to form the completely irregular structure when the bubbles are broken; the optical fiber ribbons in the completely irregular structure have different bonding points and different distances. The semi-regular structure of the invention adopts the piezoelectric valve gluing mode to ensure lower cost, adopts the long and short combination mode, has smaller attenuation of the optical fiber ribbon, and reduces the additional attenuation of the optical fiber ribbon by dotting the front and back sides of the interval property; the completely irregular structure is formed by adopting a foaming technology, the additional attenuation is better, the forming is performed at one time, and the investment cost is low by adopting the existing tape forming technology.
Description
Technical Field
The invention relates to the technical field of optical fiber ribbons, in particular to a net-shaped optical fiber ribbon and a manufacturing method thereof.
Background
The net-wound optical fiber ribbon is a novel optical fiber ribbon capable of realizing the large core number and miniaturization of an optical cable. In recent years, FTTX has been used in various applications and environments, and there has been an increasing demand for optical cables for access networks. The demand of the domestic optical cable with large core number and ultra-large core number is more and more, and the application environment is more and more complex and various, so that the application of the optical fiber ribbon optical cable is more and more. In order to realize high-density high-core optical cables, a spoolable reticular optical fiber ribbon has been developed, which has good flexibility compared with conventional optical fiber ribbons, can be used after spooling without affecting the optical performance of the optical fibers, and can realize the development of high-density optical cables under the same volume.
From the prior literature and patent search results, the earliest mesh-shaped optical fiber ribbon was proposed by Japanese NTT, japanese Sumitomo was proposed successively, japanese rattan cabins were basically in a spider-mesh structure, the structure was like a spider-web, and the structure had a regularly arranged mesh structure, the requirement on equipment was high, the processing environment was complicated, and the production cost was high, and the structure was hardly accepted in the market.
In addition, in the prior art, if the mesh-shaped optical fiber ribbon with short bonding points is used, the windability performance of the optical fiber ribbon is good, and the additional attenuation of the optical fiber ribbon is small, but if the optical fiber shakes in the spot processing process, some bonding points are not firmly bonded, and the phenomenon of loose fiber is easy to form in the production and subsequent processing processes. If long bond points are used entirely, the structure of the mesh ribbon will be more robust, but the windability will be poor, and additional attenuation of the ribbon may be added.
Disclosure of Invention
In view of the above problems, the present invention provides a mesh-like optical fiber ribbon and a method for manufacturing the same, which is not very regular in arrangement although it is a mesh-like structure, and therefore is superior in performance and less in processing cost.
A net-shaped optical fiber ribbon comprises an optical fiber ribbon, wherein the optical fiber ribbon comprises a semi-regular structure and a completely irregular structure, the semi-regular structure is formed by combining a plurality of single regular optical fibers, the semi-regular structure comprises long bonding points and short bonding points, and the long bonding points and the short bonding points are alternately combined to form a net-shaped structure; the completely irregular structure is formed by a foaming technology, and the glue supply pressure fluctuates to form the completely irregular structure when the bubbles are broken; the size of each bonding point of the ribbon connection in the completely irregular structure may be different, as may the distance.
Preferably, the length of the long bonding points of the semi-regular structure ranges from 10mm to 15mm, and the length of the short bonding points ranges from 5mm to 13mm.
Preferably, the distance between two adjacent bonding points is 40mm-60mm.
Preferably, the front and back sides of the optical fiber ribbon are glued with dots at intervals.
Preferably, the optical fiber ribbon is coated with resin on the aligned optical fibers by a piezoelectric valve sizing method or an intermittent connection optical fiber ribbon coating method.
A method for manufacturing a net-shaped optical fiber ribbon, which is completely irregular, adopts a foaming technology, and is characterized by comprising the following steps:
step one: putting the resin into a device with 35-degree heat preservation, filling a certain amount of nitrogen from the bottom of a resin tank according to the calculated foaming degree, and stirring for 10min by using a special stirrer to form resin with uniform bubbles;
step two: discharging the optical fibers from the optical fiber pay-off rack, arranging the optical fibers according to a set color, and putting the optical fibers into the coating die 1 after static electricity removal;
step three: filling the resin in the resin tank into the coating die 1 by pressure;
step four: after the optical fiber comes out of the coating die 1, a certain negative pressure is applied to the inside of the coating die 2 through the coating die 2, bubbles in the resin are removed, and redundant resin is removed, so that the shaping of the optical fiber is completed;
step five: after exiting the coating die 2, the optical fiber is cured by a UV curing oven and then the fiber ribbon is formed.
Preferably, the temperature of the resin in the first step is 35 ℃ + -1 ℃, and the viscosity orientation of the resin is 2500mpa.s-4000mpa.s.
Preferably, the number of cores of the optical fiber in the second step is 8 to 24 cores.
Preferably, the resin in the third step has a foaming degree of 35% -65%.
Preferably, the size of the resin inner bulb ranges between 15-18 mm.
Compared with the closest prior art, the technical scheme provided by the invention has the following beneficial effects:
1. the semi-regular structure net-shaped optical fiber ribbon adopts a piezoelectric valve gluing mode or an intermittent connection optical fiber ribbon coating method, so that the cost can be ensured to be relatively low;
2. the mesh optical fiber ribbon with the semi-regular structure adopts a long section and a short section of bonding points, adopts a long-short combination mode, breaks through the original rule design mode to ensure that the optical fiber ribbon of the technology has optimal comprehensive performance, has smaller attenuation, has no cracking phenomenon of the bonding points and does not damage optical fibers when the bonding points are separated;
3. the two sides of the optical fiber ribbon are subjected to dotting and gluing at intervals, so that the minimum stress received by the optical fiber ribbon can be ensured, and the additional attenuation of the optical fiber ribbon is reduced;
4. the distance between bonding points is 40mm-60mm, the design length is comprehensively considered according to the length of the bonding points, the additional attenuation of the optical fiber ribbon is influenced by too short length, and the subsequent welding is influenced by too long length;
5. the mesh optical fiber with the completely irregular structure is mainly formed by adopting a foaming technology, although the foaming technology which is as stable as possible is adopted, the glue supply pressure fluctuates when the bubbles are broken, and a regular and completely regular mesh structure cannot be formed, so that the completely irregular mesh structure is formed, the sizes of bonding points of the optical fiber ribbon connection with the completely irregular structure are different, the distances are different, but the density of the bonding points is larger, the distance of the bonding points is smaller because of the resin interval bonding formed by the breaking of the resin bubbles, the flexibility is better, the stress received by the adhesive is smaller than that of the adhesive dispensing mode, and the additional attenuation is better;
6. the manufacturing method of the net-shaped optical fiber ribbon with the completely irregular structure adopts a foaming technology, and the size of bubbles is 15-8 mm; the method is mainly directed to large core fiber optic ribbons such as 8-core, 12-core, 24-core fiber optic ribbons, and the like. The method is formed at one time, and the existing tape forming process is adopted, so that the input cost is low.
Drawings
FIG. 1 is a schematic illustration of a semi-regular structured mesh optical fiber ribbon of the present invention;
FIG. 2 is a schematic illustration of a fully irregular structured mesh optical fiber ribbon of the present invention;
FIG. 3 is a flow chart of a method of manufacturing a mesh optical fiber ribbon having a completely irregular structure according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, the present invention provides a mesh optical fiber ribbon, including an optical fiber ribbon, the optical fiber ribbon including a semi-regular structure and a completely irregular structure, the semi-regular structure being formed by combining a plurality of single regular optical fibers, the semi-regular structure including long bonding points and short bonding points, the long bonding points and the short bonding points being alternately combined to form a mesh structure; the completely irregular structure is formed by a foaming technology, and the glue supply pressure fluctuates to form the completely irregular structure when the bubbles are broken; the size of each bonding point of the optical fiber ribbon connection in the completely irregular structure can be different, and the distance can also be different, and the density of the bonding points is relatively high due to the fact that only resin formed by breaking resin bubbles is bonded at intervals. The semi-regular structure net-shaped optical fiber ribbon can reduce optical fiber attenuation through experimental tests, the phenomenon that bonding points are cracked for many times is avoided, and the optical fiber is not damaged when the bonding points are separated.
Further, the length of the long bonding point of the semi-regular structure ranges from 10mm to 15mm, and the length of the short bonding point ranges from 5mm to 13mm; the combination of the length and the design breaks through the original rule and ensures the optimal comprehensive performance of the optical fiber ribbon.
Further, the distance between two adjacent bonding points is 40mm-60mm; the design length is comprehensively considered according to the length of bonding points, and is too short to affect the additional attenuation of the optical fiber ribbon and too long to affect the subsequent welding.
Furthermore, the two sides of the optical fiber ribbon are subjected to point gluing at intervals, so that the minimum stress received by the optical fiber ribbon can be ensured, and the additional attenuation of the optical fiber ribbon is reduced.
Furthermore, the optical fiber ribbon is coated with the resin on the arranged optical fibers by a piezoelectric valve gluing method or an intermittent connection optical fiber ribbon coating method, so that the cost can be ensured to be relatively low.
A method for manufacturing a net-shaped optical fiber ribbon, which is completely irregular, adopts a foaming technology, and is characterized by comprising the following steps:
step one: putting the resin into a device with 35-degree heat preservation, filling a certain amount of nitrogen from the bottom of a resin tank according to the calculated foaming degree, and stirring for 10min by using a special stirrer to form resin with uniform bubbles;
step two: discharging the optical fibers from the optical fiber pay-off rack, arranging the optical fibers according to a set color, and putting the optical fibers into the coating die 1 after static electricity removal;
step three: filling the resin in the resin tank into the coating die 1 by pressure;
step four: after the optical fiber comes out of the coating die 1, a certain negative pressure is applied to the inside of the coating die 2 through the coating die 2, bubbles in the resin are removed, and redundant resin is removed, so that the shaping of the optical fiber is completed;
step five: after the optical fiber comes out of the coating die 2, the optical fiber is cured by a UV curing furnace, and then the optical fiber ribbon is formed;
further, the temperature of the resin in the first step is 35 ℃ + -1 ℃, and the viscosity orientation of the resin is 2500mpa.s-4000mpa.s.
Further, the number of cores of the optical fiber in the second step is 8 to 24 cores.
Further, the foaming degree of the resin in the step three is 35-65%.
Further, the size of the resin inner bubble ranges from 15 to 18mm, and the method is mainly aimed at large core number optical fiber ribbons such as 8-core, 12-core, 24-core optical fiber ribbons and the like. The one-step molding adopts the existing tape forming technology, and the input cost is low.
The method for manufacturing the completely irregular net-shaped optical fiber ribbon mainly adopts a foaming technology, and although the foaming technology which is stable as possible is adopted, the adhesive supply pressure fluctuates when the bubbles are broken, and a regular and completely regular net-shaped structure cannot be formed, so that the completely irregular net-shaped structure can be formed, the sizes of bonding points of the optical fiber ribbon connection of the completely irregular structure are different, the distances are different, but the density of the bonding points is larger, the distance between the bonding points is smaller because of the resin interval bonding formed by the breaking of the resin bubbles, the flexibility is better, the stress received by the adhesive dispensing mode is smaller than that of the adhesive dispensing mode, and the additional attenuation is better.
In order to better illustrate the beneficial effects of the invention, the following experiments were performed
1) Fiber ribbon attenuation:
the attenuation data of the optical fibers before and after banding in the embodiment of the invention are detected as shown in the following table 1: it can be seen that the attenuation of the fiber after banding is significantly reduced.
TABLE 1 fiber attenuation data before and after banding
(2) Torsion experiment:
the optical fiber is rotated 180 degrees clockwise on the length of 30cm, is rotated 180 degrees counterclockwise after returning to the initial position, and is returned to the initial position again to form a cycle, the number of torsion cycles is not less than 20, and the result shows that the bonding point of the optical fiber is not cracked.
(3) Separability experiment:
the optical fibers are separated, and the optical fibers are not damaged when the detected optical fiber bonding points are separated.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, one skilled in the art may make modifications and equivalents to the specific embodiments of the present invention, and any modifications and equivalents not departing from the spirit and scope of the present invention are within the scope of the claims of the present invention.
Claims (8)
1. A mesh optical fiber ribbon comprising an optical fiber ribbon characterized by: the optical fiber ribbon comprises a semi-regular structure and a completely irregular structure, wherein the semi-regular structure is formed by combining a plurality of single regular optical fibers, the semi-regular structure comprises long bonding points and short bonding points, and the long bonding points and the short bonding points are alternately combined between every two adjacent optical fibers along the length direction of the optical fibers to form a net-shaped structure; the completely irregular structure is formed by a foaming technology, and the glue supply pressure fluctuates to form the completely irregular structure when the bubbles are broken; the sizes of all bonding points connected with the optical fiber ribbons in the completely irregular structure are different, and the distances are also different; the length range of the long bonding point of the semi-regular structure is 10mm-15mm, and the length range of the short bonding point is 5mm-13mm; the distance between two adjacent bonding points is 40mm-60mm.
2. The mesh optical fiber ribbon according to claim 1, wherein: and the two sides of the optical fiber ribbon are at intervals and are subjected to dotting and gluing.
3. The mesh optical fiber ribbon according to claim 1, wherein: the optical fiber ribbon is coated with resin on the arranged optical fibers by a gluing method of a piezoelectric valve or a coating method of an intermittent connection optical fiber ribbon.
4. A method of manufacturing a net-like optical fiber ribbon as defined in claim 1, the method of manufacturing a net-like optical fiber ribbon entirely irregular using a foaming technique, comprising the steps of:
step one: putting the resin into a device with 35-degree heat preservation, filling a certain amount of nitrogen from the bottom of a resin tank according to the calculated foaming degree, and stirring for 10min by using a special stirrer to form resin with uniform bubbles;
step two: discharging the optical fibers from the optical fiber pay-off rack, arranging the optical fibers according to a set color, and placing the optical fibers into the coating die 1 after static electricity removal;
step three: filling the resin in the resin tank into the coating die 1 by pressure;
step four: after the optical fiber comes out of the coating die 1, a certain negative pressure is applied to the inside of the coating die 2 through the coating die 2, bubbles in the resin are removed, and redundant resin is removed, so that the shaping of the optical fiber is completed;
step five: after exiting the coating die 2, the optical fiber is cured by a UV curing oven and then the fiber ribbon is formed.
5. The method of manufacturing a mesh optical fiber ribbon of claim 4, wherein: the temperature of the resin in the step one is 35+/-1 ℃, and the viscosity of the resin ranges from 2500mpa.s to 4000mpa.s.
6. The method of manufacturing a mesh optical fiber ribbon of claim 4, wherein: and in the second step, the core number of the optical fiber is 8-24 cores.
7. The method of manufacturing a mesh optical fiber ribbon of claim 4, wherein: the foaming degree of the resin in the step three is 35-65%.
8. The method of manufacturing a mesh optical fiber ribbon of claim 4, wherein: the size of the resin inner bubble ranges from 15mm to 18 mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210849190.9A CN115236813B (en) | 2022-07-19 | 2022-07-19 | Net-shaped optical fiber ribbon and manufacturing method thereof |
| PCT/CN2022/110228 WO2024016387A1 (en) | 2022-07-19 | 2022-08-04 | Net-shaped optical fiber ribbon and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210849190.9A CN115236813B (en) | 2022-07-19 | 2022-07-19 | Net-shaped optical fiber ribbon and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115236813A CN115236813A (en) | 2022-10-25 |
| CN115236813B true CN115236813B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210849190.9A Active CN115236813B (en) | 2022-07-19 | 2022-07-19 | Net-shaped optical fiber ribbon and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115236813B (en) |
| WO (1) | WO2024016387A1 (en) |
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| WO2024016387A1 (en) | 2024-01-25 |
| CN115236813A (en) | 2022-10-25 |
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