CN201873623U - Resin coating device for plastic-clad optical fiber with large core diameter - Google Patents
Resin coating device for plastic-clad optical fiber with large core diameter Download PDFInfo
- Publication number
- CN201873623U CN201873623U CN2010205601079U CN201020560107U CN201873623U CN 201873623 U CN201873623 U CN 201873623U CN 2010205601079 U CN2010205601079 U CN 2010205601079U CN 201020560107 U CN201020560107 U CN 201020560107U CN 201873623 U CN201873623 U CN 201873623U
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- China
- Prior art keywords
- optical fiber
- resin coating
- coating
- large core
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000000576 coating method Methods 0.000 title claims abstract description 65
- 239000011248 coating agent Substances 0.000 title claims abstract description 61
- 239000011347 resin Substances 0.000 title claims abstract description 20
- 229920005989 resin Polymers 0.000 title claims abstract description 20
- 239000013307 optical fiber Substances 0.000 title abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 30
- 238000007493 shaping process Methods 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000005253 cladding Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011112 process operation Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 241000345998 Calamus manan Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 mould Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
Images
Landscapes
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The utility model relates to a resin coating device for an optical fiber with a large core diameter, in particular to a resin coating device for a plastic-clad optical fiber with a large core diameter. The resin coating device comprises a casing, wherein a guide die is placed inside the casing; a liquid coating cavity is formed between the guide die and the bottom of the casing; and a lead-out hole interface is formed at the bottom of the casing in a position corresponding to the guide die. The resin coating device is characterized in that a flexible forming die is placed at the lead-out hole interface. The utility model has the benefits as follows: firstly, automatic adjusting and centering can be achieved, processed optical fiber coatings are uniform and have good concentricity, the common wall deflection is avoided, and the coating uniformity and consistency are ensured; secondly, as the flexible forming die with a low hardness can not damage the optical fiber, the prepared optical fiber has the advantages of high strength and larger segment length, which guarantees the processing quality of the optical fiber; and thirdly, the resin coating device is easy to mount and debug and is convenient for processing and operation, thereby effectively reducing the processing and operating difficulty and improving the work efficiency. Meanwhile, the components can be detached for cleaning, so that the maintenance of the device is facilitated.
Description
Technical field
The utility model relates to the resin coating coating unit of a kind of large core fiber, especially big core diameter plastic-clad optical fiber.
Background technology
The typical optical fiber structure of producing comprises silica glass sandwich layer and covering at present, is coated with double-deck polyacrylic resin coating as protective layer at cladding surface.The effect of this protective layer is that the protective glass structure is avoided destroying because of physical abuse when manufacturing processed and use.Its process characteristic be quartz glass fibre after moulding, contacts with other surfaces and to apply immediately before.The quality of coat when this manufacturing process can realize more and more higher drawing speed and guarantee high-speed wire-drawing, typical drawing speed can reach 1500m/min even 2000m/min.Under the high-speed wire-drawing condition, apply the quick mobile coating of mould outlet end fiber is produced " from the centering effect ", be that coating reaches running balance and automatically optical fiber shifted onto the mould outlet central position around the optical fiber, make the resin coating of optical fiber have good concentricity.
But above-mentioned optical fiber fabrication technology and relevant device are applicable to the preparation of the special optical fiber that standard traffic optical fiber and core diameter are not too big, and are not suitable for the preparation of the especially big core diameter plastics of large core fiber covering special optical fiber.This is by the structures shape of big core diameter special optical fiber: the quartz glass fibre diameter of large core fiber is the telecommunication optical fiber of 125 μ m greater than diameter, and large core fiber diameter commonly used is 200 μ m, 400 μ m, 600 μ m, 800 μ m, 1000 μ m even reaches 1500 μ m.Big like this fibre diameter is because the restriction of prefabricated rods size and equipment can not realize high-speed wire-drawing, so the drawing speed of large core fiber is generally lower, usually is lower than 30m/min even is low to moderate 3m/min.The mould that existing preparation large core fiber is used for the resin coating coating is a steel part, and outlet is shaped as circle.Therefore when large core fiber low speed exported by steel mould, coating did not possess " from the centering effect " to the effect of optical fiber, was easy to generate that the fibre coating concentricity is poor, optical fiber and punching block frictionally damage, the uneven problem of coating.These problems not only influence the optical fiber fabrication quality, and can cause the mould of subsequent handling to stop up.
Chinese patent CN98812222.7 has announced the coating method and the coating unit of a kind of fiber optics of applicant Sumitomo Electrics Industry Ltd, having described standard 125 μ m quartz is " wet to wet " double-coating coating method and device of optical fiber, is not suitable for the manufacturing of big core diameter special optical fiber.United States Patent (USP) 5976611 has been described the coating method and the coating unit of a kind of fiber optics of applicant Sumitomo Electrics Industry Ltd, and this method and device do not relate to the concentricity problem of the optical fiber under the low speed drawing condition.United States Patent (USP) 7041334 has been described the optical fiber preparation device of the above drawing speed of a kind of 20m/sec of applicant rattan storehouse company, and this device is not suitable for the preparation of low speed large core fiber.
Summary of the invention
Technical problem to be solved in the utility model is to provide at the deficiency of above-mentioned prior art existence the resin coating coating unit of large core fiber, and not only coating quality is good for it, does not damage optical fiber, and resin-coated good concentricity.
The utility model is that the technical scheme that technical problem adopted of the above-mentioned proposition of solution is: include a housing, be installed on the guiding mould in the housing, between guiding mould and the housing bottom is the liquid coating chamber, offer the fairlead interface at the corresponding guiding in the bottom of housing mould, it is characterized in that installing the flexible formation mould at the fairlead interface.
Press such scheme, described flexible formation mould is made by silicon rubber.
Press such scheme, described flexible formation mould comprises the connecting joint that top is provided with, and the connecting joint lower end is provided with forming cone, offers shaping mold cavity in the forming cone, and the endoporus of shaping mold cavity is along circumferentially being arranged at intervals with 3～8 ribs.
Press such scheme, described rib exceeds shaping mold cavity endoporus hole wall 50～150 μ m, and the rib width is 50～200 μ m; The formed revolution of rib aperture is identical with fibre diameter.
The fine bare fibre of fusion drawn one-tenth drew straight down and enters the housing inner chamber when the utility model used, optical fiber penetrates from the guiding mould, via entering shaping mold cavity behind the liquid coating chamber coating coating, because the centering of shaping mold cavity endoporus rib effect, make optical fiber be in the endoporus center, coating is evenly distributed on the circumferential of optical fiber, after optical fiber is drawn shaping mold cavity, because the capillary effect of liquid coating, the coating rapid closing of being cut apart by rib forms even cladding optical fibre skin and the good liquid film cold coating layer of concentricity, promptly forms through ultraviolet light polymerization or thermofixation to have resin-coated large core fiber.
The beneficial effects of the utility model are: 1, adopt the flexible formation mould and at die cavity rib is set, can regulate automatically and centering, processed fibre coating is even, good concentricity, avoid common " wall partially " phenomenon, guaranteed the homogeneity and the consistence of coating; 2, the hardness of flexible formation mould is low, can not damage optical fiber, makes the optical fiber of preparation have the intensity height, and the segment length is the advantage of length, has therefore guaranteed the processing quality of optical fiber, has improved the processed finished products rate; 3, not only be easy to Installation and Debugging, also be convenient to process operation, effectively reduce the process operation difficulty, improved work efficiency.Guide the removable cleaning of the assembly back recombinant of compositions such as mould, coating chamber, shaping mould to get up to reuse simultaneously, be convenient to the care and maintenance of equipment.
Description of drawings
Fig. 1 is the structure iron of an embodiment of the utility model.
Fig. 2 is the sectional view that the flexible formation mould amplifies among embodiment of the utility model.
Fig. 3 is the A-A sectional view of Fig. 2.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include a housing 6, be installed on guiding mould 2 in the housing, and by positioning element 3 location, vertical through hole is offered in the centre of guiding mould, the through hole inlet is horn-like, and the guiding mould is made by metallic substance; Between guiding mould and the housing bottom is liquid coating chamber 5, and the liquid coating chamber is connected with edgewise feed port 4 and is connected with the vertical through hole of guiding mould, and the liquid coating chamber is full of liquid coating during work; Offer the fairlead interface at the vertical through hole of the bottom of housing corresponding guiding mould, install flexible formation mould 7 at the fairlead interface, described flexible formation mould is made by silicon rubber, the flexible formation mould comprises the shell-like connecting joint that top is provided with, the connecting joint lower end is provided with forming cone, offer shaping mold cavity in the forming cone, the shaping mold cavity endoporus is the taper hole shape, the exit, lower end is a straight hole, the endoporus hole wall of shaping mold cavity is along circumferentially being arranged at intervals with 6 ribs 9, described rib exceeds shaping mold cavity endoporus hole wall 80 μ m, and the rib width is 150 μ m; The formed revolution of rib aperture is identical with fibre diameter, between rib the gap that forms 10 be the coating passage of coating.Flexible formation mould shore hardness scope is A30 to A70, and preferred shore hardness scope is A40 to A50.
Bare fibre 1 draws straight down and enters the housing inner chamber during the utility model work, penetrate from the guiding mould, via entering shaping mold cavity behind the liquid coating chamber coating coating, because the centering of shaping mold cavity endoporus rib effect, make optical fiber be in the endoporus center, coating is evenly distributed on the circumferential of optical fiber, after optical fiber is drawn shaping mold cavity, promptly forms the optical fiber 8 of coated with resins coating.
The embodiment of two processing optical fiber of the present utility model is as follows:
Claims (6)
1. large core fiber resin coating coating unit, including a housing, be installed on the guiding mould in the housing, is the liquid coating chamber between guiding mould and the housing bottom, offer the fairlead interface at the corresponding guiding in the bottom of housing mould, it is characterized in that installing the flexible formation mould at the fairlead interface.
2. by the described large core fiber resin coating of claim 1 coating unit, it is characterized in that described flexible formation mould made by silicon rubber.
3. by claim 1 or 2 described large core fiber resin coating coating units, it is characterized in that described flexible formation mould comprises the connecting joint that top is provided with, the connecting joint lower end is provided with forming cone, offer shaping mold cavity in the forming cone, the endoporus of shaping mold cavity is along circumferentially being arranged at intervals with 3～8 ribs.
4. by the described large core fiber resin coating of claim 3 coating unit, it is characterized in that described rib exceeds shaping mold cavity endoporus hole wall 50～150 μ m, the rib width is 50～200 μ m; The formed revolution of rib aperture is identical with fibre diameter.
5. by the described large core fiber resin coating of claim 3 coating unit, it is characterized in that the shaping mold cavity endoporus is the taper hole shape, the exit, lower end is a straight hole.
6. by claim 1 or 2 described large core fiber resin coating coating units, it is characterized in that flexible formation mould shore hardness scope is A30 to A70.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205601079U CN201873623U (en) | 2010-10-09 | 2010-10-09 | Resin coating device for plastic-clad optical fiber with large core diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205601079U CN201873623U (en) | 2010-10-09 | 2010-10-09 | Resin coating device for plastic-clad optical fiber with large core diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201873623U true CN201873623U (en) | 2011-06-22 |
Family
ID=44161549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205601079U Expired - Lifetime CN201873623U (en) | 2010-10-09 | 2010-10-09 | Resin coating device for plastic-clad optical fiber with large core diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201873623U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809790A (en) * | 2012-07-06 | 2012-12-05 | 上海复合材料科技有限公司 | Method for protecting built-in optical fiber of composite material |
| CN105676388A (en) * | 2016-04-14 | 2016-06-15 | 杭州富通通信技术股份有限公司 | Optical cable manufacturing method |
| CN111362572A (en) * | 2018-12-26 | 2020-07-03 | 深圳特发信息光纤有限公司 | Optical fiber preparation method and optical fiber |
| CN112815622A (en) * | 2021-01-06 | 2021-05-18 | 杭州富通通信技术股份有限公司 | Method for manufacturing optical fiber |
| CN113698111A (en) * | 2021-10-19 | 2021-11-26 | 江东科技有限公司 | Optical fiber drawing coating device and coating method |
| CN114751658A (en) * | 2022-05-24 | 2022-07-15 | 深圳市达富光通信有限公司 | Optical fiber coating machine |
| CN115636600A (en) * | 2022-10-11 | 2023-01-24 | 武汉智深光电有限公司 | Coating die for low-speed low-tension wire drawing of large-core-diameter optical fiber |
-
2010
- 2010-10-09 CN CN2010205601079U patent/CN201873623U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809790A (en) * | 2012-07-06 | 2012-12-05 | 上海复合材料科技有限公司 | Method for protecting built-in optical fiber of composite material |
| CN102809790B (en) * | 2012-07-06 | 2016-05-18 | 上海复合材料科技有限公司 | The guard method of composite built-in fiber |
| CN105676388A (en) * | 2016-04-14 | 2016-06-15 | 杭州富通通信技术股份有限公司 | Optical cable manufacturing method |
| CN111362572A (en) * | 2018-12-26 | 2020-07-03 | 深圳特发信息光纤有限公司 | Optical fiber preparation method and optical fiber |
| CN112815622A (en) * | 2021-01-06 | 2021-05-18 | 杭州富通通信技术股份有限公司 | Method for manufacturing optical fiber |
| CN113698111A (en) * | 2021-10-19 | 2021-11-26 | 江东科技有限公司 | Optical fiber drawing coating device and coating method |
| CN114751658A (en) * | 2022-05-24 | 2022-07-15 | 深圳市达富光通信有限公司 | Optical fiber coating machine |
| CN115636600A (en) * | 2022-10-11 | 2023-01-24 | 武汉智深光电有限公司 | Coating die for low-speed low-tension wire drawing of large-core-diameter optical fiber |
| CN115636600B (en) * | 2022-10-11 | 2023-12-01 | 武汉智深光电有限公司 | Coating die for low-speed low-tension drawing of large-core-diameter optical fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANGTZE OPTICAL FIBRE AND CABLE CO., LTD Free format text: FORMER NAME: CHANGFEI FIBRE-OPTICAL + OPTICAL CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee after: Yangtze Optical Fibre and Cable Co., Ltd Address before: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee before: Changfei Fibre-Optical & Optical Cable Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |