CN103803783B - The double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing - Google Patents
The double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing Download PDFInfo
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- CN103803783B CN103803783B CN201410038688.2A CN201410038688A CN103803783B CN 103803783 B CN103803783 B CN 103803783B CN 201410038688 A CN201410038688 A CN 201410038688A CN 103803783 B CN103803783 B CN 103803783B
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Abstract
The present invention relates to drawing optical fibers production field, it is specifically related to the double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing. It comprises metal outer pipe and coupled interior pipe, described metal outer pipe top connects bottom fiber drawing furnace, bottom arranges venturi effect opening and ashes catch tray, and described interior pipe upper end connects lens, and lower end arranges extension tube iris mouth through venturi effect opening and ashes catch tray. The present invention is in the process of drawing optical fibers, and optical fiber at different passages, greatly reduces the probability that dust granules contacts with optical fiber and prefabricated rods from the particle separation that body of heater produces, it is to increase the overall quality of optical fiber. Metal outer pipe arranges venturi effect opening, leads to into nitrogen, separation dust in the duct can be purged to bottom, achieve and collect the dust isolated online and collect, extend the cleaning cycle of extension tube, reduce the numerous and diverse degree of work of operator, reduce production cost.
Description
Technical field
The present invention relates to drawing optical fibers production field, it is specifically related to the double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing.
Background technology
At present, optical fiber plays more and more important effect as the important carrier of communication in modern communication, along with the development of communication technology, the requirement of optical fiber quality is also more and more higher. Strength problem, as the important indicator of optical fiber quality, is directly connected to the cost at optical fiber, also becomes the perpetual object of each production firm, and the mechanical reliability of commercial fibres is very important in the design and production of optical cable. In order to ensure that optical fiber has certain resistant to damage ability, present production firm extensively adopts and optical fiber is carried out screening experiment.
The screening strain force of 1% is added on a complete continuous optical fiber to test by the Select to use optical fiber sifting machine of optical fiber, the load that this screening power is greater than the manufacture of optical cable and laying runs into. Fiber strength is up to standard makes length and adaptability to changes obtain limited guarantee, and the optical fiber scrapped then reduces, and can reduce in optical fiber production process the loss produced owing to scrapping, and reduces optical fiber cost.
In graphite induction furnace wire drawing process, owing to graphite piece is when high temperature, it is easy to produce the dust granules such as SiC, C, the dust that the SiO2 that simultaneously can send out from prefabricated rods surface also can deposit. Due to the structure of the extension tube of fiber drawing furnace individual layer so that prefabricated rods, optical fiber and above-mentioned dust are in the middle of same environment. Fiber drawing furnace process gas is to, in the process of flowing, dust to be contacted with prefabricated rods surface or bare fibre are then inevitable in body of heater. Dust granules on prefabricated rods surface, in the environment of high temperature, deeply contacts with prefabricated rods, enters melting prefabricated rods inner, and the optical fiber after directly making wire drawing creates defect, and these defects will seriously affect the intensity of following optical fiber; At the dust granules of optical fiber surface, if what the interior bare fibre of process furnace was touched by SiC particulate, optical fiber surface can produce defect and crackle. And when heating in-furnace temperature is more high, the quantity of the SiC particulate that reaction generates is more many, so the probability that bare fibre surface is bruised is more high, the defect that optical fiber surface produces is more many, and fiber strength is more low.
Tiny crack is created by above-mentioned reason optical fiber, in the process of next process screening, optical fiber need to bear the screening of the external force of 9.8N, and tiny crack can occur crackle to expand in the process bearing external force, increases dark so that produce fracture, produces the optical fiber producing to scrap due to strength reasons. This type of scraps optical fiber, has both caused the raising of optical fiber cost, makes again the quality decline of optical fiber own.
Summary of the invention
For the deficiency existed in prior art, the present invention provides a kind of online collection ashes, extends extension tube cleaning cycle, reduces operator's working strength, reduces optical fiber condemnation factor, reduces the double-deck annealing extension tube of the optical fiber high-speed wire-drawing of production cost.
In order to realize above-mentioned purpose, the present invention realizes by the following technical solutions:
The double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing, it comprises metal outer pipe and coupled interior pipe, described metal outer pipe top connects bottom fiber drawing furnace, bottom arranges venturi effect opening and ashes catch tray, described interior pipe upper end connects lens, lower end arranges extension tube iris mouth through venturi effect opening and ashes catch tray, and lens arranges flange, and described flange stretches into interior pipe and interior pipe is fixed.
The double-deck annealing extension tube of above-mentioned a kind of optical fiber high-speed wire-drawing, the interior pipe described in it is metal inner pipe, ceramic inner pipe or glass inner tube.
The double-deck annealing extension tube of above-mentioned a kind of optical fiber high-speed wire-drawing, the metal outer pipe described in it is connected with interior pipe by metal tube support.
The double-deck annealing extension tube of above-mentioned a kind of optical fiber high-speed wire-drawing, described in it
The double-deck annealing extension tube of above-mentioned a kind of optical fiber high-speed wire-drawing, the venturi effect opening described in it is four small annular holes, leads to into nitrogen in four small annular holes.
Useful effect:
The present invention is in the process of drawing optical fibers, and optical fiber at different passages, greatly reduces the probability that dust granules contacts with optical fiber and prefabricated rods from the particle separation that body of heater produces, it is to increase the overall quality of optical fiber. Metal outer pipe arranges venturi effect opening, leads to into nitrogen, separation dust in the duct can be purged to bottom, achieve and collect the dust isolated online and collect, extend the cleaning cycle of extension tube, reduce the numerous and diverse degree of work of operator, reduce production cost.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail;
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of interior pipe.
Fig. 3 is heavy connection of pipe schematic diagram.
Embodiment
For the present invention is realized technique means, creation characteristic, reach object and effect is easy to understand, below in conjunction with embodiment, set forth the present invention further.
With reference to Fig. 1, Fig. 2 and Fig. 3, the present invention comprises metal outer pipe 5 and by the coupled metal inner pipe 6 of metal tube support 4, metal outer pipe 5 top connects bottom fiber drawing furnace, bottom arranges venturi effect opening 7 and ashes catch tray 8, venturi effect opening 7 is four small annular holes, lead to into nitrogen in four small annular holes, metal inner pipe 6 upper end connects lens 3, lens 3 arranges flange, flange stretches into metal inner pipe 6 and fixes with metal inner pipe 6, and lower end arranges extension tube iris mouth 9 through venturi effect opening 7 and ashes catch tray 8.
When drawing optical fibers is produced, process gas enters into passage 13 and passage 14 by stove 10 shuntings, wherein, most of ashes of fiber drawing furnace are due in the position close to graphite muffle tube wall, taken in passage 13 by downward process gas, thus optical fiber 12 is separated with ashes, the bulk strength of optical fiber 12 is got a promotion, the nitrogen that ashes are entered by venturi effect opening 7 in passage 13 simultaneously forms venturi effect and takes in ashes catch tray 8, it is achieved that the online collection of drawing optical fibers ashes.
The present invention is in the process of drawing optical fibers, and optical fiber at different passages, greatly reduces the probability that dust granules contacts with optical fiber and prefabricated rods from the particle separation that body of heater produces, it is to increase the overall quality of optical fiber. Metal outer pipe arranges venturi effect opening, leads to into nitrogen, separation dust in the duct can be purged to bottom, achieve and collect the dust isolated online and collect, extend the cleaning cycle of extension tube, reduce the numerous and diverse degree of work of operator, reduce production cost.
More than show and describe the ultimate principle of the present invention and the advantage of main characteristic sum the present invention. The technician of the industry should understand; the present invention is not restricted to the described embodiments; the principle that the present invention is just described described in above-described embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention. The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. the double-deck annealing extension tube of an optical fiber high-speed wire-drawing, it is characterized in that, comprise metal outer pipe and coupled interior pipe, described metal outer pipe top connects bottom fiber drawing furnace, bottom arranges venturi effect opening and ashes catch tray, and described interior pipe upper end connects lens, and lower end arranges extension tube iris mouth through venturi effect opening and ashes catch tray, described lens arranges flange, and described flange stretches into interior pipe and interior pipe is fixed.
2. the double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing according to claim 1, it is characterised in that, described interior pipe is metal inner pipe, ceramic inner pipe or glass inner tube.
3. the double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing according to claim 1 and 2, it is characterised in that, described metal outer pipe is connected with interior pipe by metal tube support.
4. the double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing according to claim 1 and 2, it is characterised in that, described venturi effect opening is four small annular holes, leads to into nitrogen in four small annular holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038688.2A CN103803783B (en) | 2014-01-27 | 2014-01-27 | The double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038688.2A CN103803783B (en) | 2014-01-27 | 2014-01-27 | The double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103803783A CN103803783A (en) | 2014-05-21 |
| CN103803783B true CN103803783B (en) | 2016-06-01 |
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| CN201410038688.2A Active CN103803783B (en) | 2014-01-27 | 2014-01-27 | The double-deck annealing extension tube of a kind of optical fiber high-speed wire-drawing |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082560B (en) * | 2017-05-15 | 2023-02-10 | 江苏亨通光纤科技有限公司 | Optical fiber annealing extension tube |
| CN110723901A (en) * | 2019-09-29 | 2020-01-24 | 法尔胜泓昇集团有限公司 | Automatic centering and cleaning device for lining pipe of optical fiber annealing furnace and implementation method thereof |
| CN110746110A (en) * | 2019-12-10 | 2020-02-04 | 普天线缆集团有限公司 | Improved 1550 low loss optical fiber manufacturing apparatus and method of operation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2505171B2 (en) * | 1986-09-29 | 1996-06-05 | 住友電気工業株式会社 | Optical fiber drawing furnace |
| CN200964383Y (en) * | 2006-11-04 | 2007-10-24 | 江苏亨通光纤科技有限公司 | Dismountable optical fibre anneal prolonging pipe |
| CN201121163Y (en) * | 2007-10-24 | 2008-09-24 | 江苏亨通光纤科技有限公司 | Optical fiber aggregate graphite extension tube |
| JP2011173734A (en) * | 2010-02-23 | 2011-09-08 | Fujikura Ltd | Extended tube for spinning machine and spinning machine |
| CN102079623B (en) * | 2010-11-12 | 2013-03-13 | 江苏通鼎光电股份有限公司 | Optical fiber annealing extension tube used for high-speed drawing |
| CN203683361U (en) * | 2014-01-27 | 2014-07-02 | 江苏通鼎光棒技术有限公司 | Double-layer annealing extension tube for high-speed wire drawing of optical fiber |
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Address after: 215233 Wujiang economic and Technological Development Zone, Suzhou, Jiangsu Province Patentee after: JIANGSU TONGDING LOGHT STICKS CO., LTD. Address before: 215233 Wujiang economic and Technological Development Zone, Suzhou, Jiangsu Province Patentee before: JIANGSU TONGDING OPTICAL WAND TECHNOLOGY CO., LTD. |
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Effective date of registration: 20170505 Address after: Wujiang Zhenze Town District of Suzhou City, Jiangsu province 215233 eight economic and Technological Development Zone No. 8 Xiaoping Avenue Co-patentee after: JIANGSU TONGDING LOGHT STICKS CO., LTD. Patentee after: The logical interconnected information limited company of ancient cooking vessel Address before: 215233 Wujiang economic and Technological Development Zone, Suzhou, Jiangsu Province Patentee before: JIANGSU TONGDING LOGHT STICKS CO., LTD. |