CN213060660U - Optical fiber drawing annealing device - Google Patents
Optical fiber drawing annealing device Download PDFInfo
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- CN213060660U CN213060660U CN202021324683.3U CN202021324683U CN213060660U CN 213060660 U CN213060660 U CN 213060660U CN 202021324683 U CN202021324683 U CN 202021324683U CN 213060660 U CN213060660 U CN 213060660U
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Abstract
The utility model discloses an optic fibre wire drawing annealing device, including wire drawing stove and optic fibre, be connected with first quartzy extension pipe on the wire drawing stove lower extreme, the outside cover of first quartzy extension pipe is equipped with fixed metal annealing pipe, the lower extreme of first quartzy extension pipe is connected on first fixed bolster, the lower extreme of first fixed bolster is connected with the quartzy extension pipe of second, the lower extreme of the quartzy extension pipe of second is installed on the second fixed bolster, the outside cover of the quartzy extension pipe of second is equipped with and removes metal annealing pipe, optic fibre passes first quartzy extension pipe in proper order, first fixed bolster, the quartzy extension pipe of second and second fixed bolster. In this way, the utility model discloses optical fiber wire drawing annealing device can slow down the naked fine fluctuation that the air current disturbance brought and make optic fibre fully anneal, reduces the final reduction optical fiber attenuation of microcrack in the reduction of optic fibre internal stress, and portable annealing pipe makes things convenient for the disconnected fine processing of production process simultaneously, effectual improvement optical fiber quality and wire drawing production efficiency.
Description
Technical Field
The utility model relates to an optic fibre field especially relates to an optic fibre wire drawing annealing device.
Background
The domestic optical fiber drawing process is basically stable, but the society is forced to have strict requirements on long-distance large communication capacity and the outer diameter of the optical fiber by a downstream ceramic ferrule. An optical fiber drawing factory optimizes a drawing process to reduce optical fiber attenuation, strictly control bare fiber fluctuation, improve drawing yield and reduce drawing cost. The most fundamental method is to reduce the microcracks by optimizing and modifying the drawing furnace part to reduce the internal stress of the optical fiber. The scheme is that install the annealing stove additional under annealing pipe, has two drawbacks like this: 1. the installed annealing furnace occupies space, and the optical fiber is easy to adhere when the quality of the internal ceramic is poor. 2. The annealing furnace is heated, which wastes electric energy. The second scheme is to use graphite as an inner sleeve and a metal tube as an extension tube, so that the two defects are as follows: 1. graphite is easily oxidized. 2. Graphite is prone to ash shedding which affects fiber strength. The third scheme is to increase the extension pipe, and the defect that no method is available for processing when the tower is broken in the extension pipe, only temperature reduction can be finally realized, and time is wasted.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides an optic fibre wire drawing annealing device, can slow down the naked fine fluctuation that the air current disturbance brought and make optic fibre fully anneal, reduce the optic fibre internal stress and reduce the final reduction optical fiber attenuation of crazing line, portable annealing pipe makes things convenient for the production process to break fine processing simultaneously, effectual improvement optical fiber quality and wire drawing production efficiency.
In order to solve the technical problem, the utility model discloses a technical scheme be: provides an optical fiber drawing and annealing device, which comprises a drawing furnace and an optical fiber penetrating through the drawing furnace, wherein the lower end of the drawing furnace is connected with a first quartz extension tube, the outer side of the first quartz extension tube is sleeved with a fixed metal annealing tube, the lower end of the first quartz extension tube is connected to the first fixed support, the lower end of the first fixed support is connected with a second quartz extension tube, the lower end of the second quartz extension tube is arranged on the second fixed support, a movable metal annealing pipe is sleeved on the outer side of the second quartz extension pipe and comprises at least two semi-open type movable metal annealing pipes, the semi-open type movable metal annealing pipe moves to cover or separate from the second quartz extension pipe, and the optical fiber sequentially passes through the first quartz extension pipe, the first fixing support, the second quartz extension pipe and the second fixing support.
In a preferred embodiment of the present invention, the semi-open type mobile metal annealing pipe is provided with an arm lever, the other end of the arm lever is movably connected to the support, the support is mounted on the electric device, and the electric device drives the support to move up and down to move the semi-open type mobile metal annealing pipe.
In a preferred embodiment of the present invention, the semi-open type movable metal annealing pipe is provided with a fixed block, and the front end of the arm is connected to the fixed block.
In a preferred embodiment of the present invention, the electric device includes a power unit and a transmission rod, the support is mounted on the transmission rod, and the power unit drives the transmission rod to move the support and the movable metal annealing pipe up and down.
In a preferred embodiment of the present invention, the lower end of the second quartz extension tube is screwed to the second fixing bracket by a rear stopper.
The utility model has the advantages that: the utility model discloses optical fiber wire drawing annealing device can slow down the naked fine fluctuation that the air current disturbance brought and make optic fibre fully anneal, reduces the final reduction optical fiber attenuation of microcrack in the reduction of optic fibre internal stress, and portable annealing pipe makes things convenient for the disconnected fine processing of production process simultaneously, effectual improvement optical fiber quality and wire drawing production efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic structural view of a preferred embodiment of the optical fiber drawing annealing apparatus of the present invention;
FIG. 2 is a graph comparing bare fiber fluctuations;
FIG. 3 is a histogram before fiber modification;
FIG. 4 is a histogram after fiber modification;
the parts in the drawings are numbered as follows: 1. the optical fiber drawing device comprises an optical fiber 2, a drawing furnace 3, a fixed metal annealing pipe 4, a first quartz extension pipe 5, a first fixed support 6, a second quartz extension pipe 7, a fixed block 8, a movable metal annealing pipe 81, a semi-open type movable metal annealing pipe 9, a second fixed support 10, a tail stop block 11, an arm rod 12, a support saddle 13, an electric device 131, a power part 132 and a transmission rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, an optical fiber drawing and annealing apparatus includes a drawing furnace 2 and an optical fiber 1 passing through the drawing furnace 2, a first quartz extension tube 4 is connected to a lower end of the drawing furnace 2, a fixed metal annealing tube 3 is sleeved outside the first quartz extension tube 4, a lower end of the first quartz extension tube 4 is connected to a first fixing bracket 5, a second quartz extension tube 6 is connected to a lower end of the first fixing bracket 5, a lower end of the second quartz extension tube 6 is mounted on a second fixing bracket 9, a movable metal annealing tube 8 is sleeved outside the second quartz extension tube 6, the movable metal annealing tube 8 includes two semi-open type movable metal annealing tubes 81, the semi-open type movable metal annealing tube 81 moves to cover or separate from the second quartz extension tube 6, the optical fiber passes through the first quartz extension tube 4 and the first fixing bracket 5 in sequence, a second quartz extension tube 6 and a second fixed mount 9.
In addition, the semi-open type moving metal annealing 81 pipe is provided with an arm rod 11, the other end of the arm rod 11 is movably connected to the support 12, the support 12 is arranged on the electric device 13, and the electric device 13 drives the support 12 to move up and down to move the semi-open type moving metal annealing pipe 81.
In addition, the fixing block 7 is mounted on the semi-open type moving metal annealing pipe 81, and the front end of the arm 11 is connected to the fixing block 14.
In addition, the electric device 13 includes a power unit 131 and a transmission rod 132, the carriage 12 is mounted on the transmission rod 132, and the power unit 131 drives the transmission rod 132 to move the carriage 12 and the moving metal annealing pipe 8 up and down.
In addition, the lower end of the second quartz extension tube 6 is screwed to the second fixing bracket 9 through a rear stopper 10.
The fixed metal annealing pipe 3 and the movable metal annealing pipe 8 are respectively arranged outside the first quartz extension pipe 4 and the second quartz extension pipe 6 to reduce the heat radiation loss in the wire drawing process, so that a furnace temperature field can be fully utilized to provide better temperature gradient to fully anneal the optical fiber to reduce 1550 attenuation caused by the internal stress of the optical fiber. The length of the extension tube is increased to match with the adjustment of the shutter at the bottom, so that the air pressure in the furnace is ensured, the airflow resistance in the extension tube is increased to relieve the disturbance of the airflow to the optical fiber, and finally, the effect of reducing the fluctuation of bare fiber is achieved. The added lower section of extension pipe adopts two semi-open metal pipes with adjustable positions, so that when the optical fiber tower is broken in the extension pipe, the lower section of extension pipe is conveniently and timely detached, the probability of furnace blockage and temperature reduction is reduced, and the production efficiency is finally improved. The optical fiber drawing stability is ensured through the measures: the bare fiber fluctuation is reduced, the 1550 attenuation is reduced, the operation is convenient, and the production efficiency is improved.
First, the first quartz extension tube 4 is installed inside the fixed metal annealing pipe 3, and the lower portion of the first quartz extension tube 4 is seated on the first fixing bracket 5. Then, the upper part of the second quartz extension tube 6 is pressed against the lower end of the first fixed bracket 5, and the lower part of the second quartz extension tube 6 is seated on the second fixed bracket 9 and then the rear stop 10 is screwed. And finally, combining and wrapping the semi-open type movable metal withdrawing pipe 81 outside the second quartz extension pipe 6 by connecting the arm rod 11 of the fixing block 14, and then controlling the transmission rod by the power part 13 to enable the semi-open type movable metal withdrawing pipe 81 to move upwards to contact the lower end of the first fixing bracket 5.
When the optical fiber tower breaks the extension pipe: the driving rod is controlled by the power part 13 to move the semi-open type moving metal pipe 81 downwards, and the semi-open type moving metal pipe 81 is opened by the arm 11 connected with the fixed block 14. At this time, the high-temperature glove is worn to disassemble the tail stopper 10 to move the second quartz extension tube 6 downwards, so that the optical fiber passes through the second quartz extension tube 6 and the tail stopper 10 again, and the purpose of not cooling is achieved.
FIG. 2 is a graph showing the comparison of bare fiber fluctuation and attenuation data before and after treatment with an optical fiber drawing annealing apparatus. Bare fiber fluctuation comparison: fluctuation of bare fiber is +/-0.35 um before transformation, and fluctuation of bare fiber is +/-0.2 um after the novel patent is used
Be different from prior art, the utility model discloses optical fiber wire drawing annealing device can slow down the naked fine fluctuation that the air current disturbance brought and make optic fibre fully anneal, reduces the final reduction optical fiber attenuation of microcrack in the reduction of optic fibre internal stress, and portable annealing pipe makes things convenient for the disconnected fine processing of production process simultaneously, effectual improvement optic fibre quality and wire drawing production efficiency.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (5)
1. An optical fiber drawing and annealing device comprises a drawing furnace and an optical fiber passing through the drawing furnace, and is characterized in that, the lower end of the wire drawing furnace is connected with a first quartz extension tube, the outer side of the first quartz extension tube is sleeved with a fixed metal annealing tube, the lower end of the first quartz extension tube is connected to a first fixed support, the lower end of the first fixed support is connected with a second quartz extension tube, the lower end of the second quartz extension tube is arranged on the second fixed bracket, the outer side of the second quartz extension tube is sleeved with a movable metal annealing tube, the moving metal annealing pipe comprises at least two semi-open type moving metal annealing pipes which move to cover or separate from the second quartz extension pipe, the optical fiber sequentially passes through the first quartz extension tube, the first fixing support, the second quartz extension tube and the second fixing support.
2. The optical fiber drawing annealing device according to claim 1, wherein the semi-open type moving metal annealing pipe is provided with an arm rod, the other end of the arm rod is movably connected to a support, the support is provided with an electric device, and the electric device drives the support to move up and down to move the semi-open type moving metal annealing pipe.
3. The optical fiber drawing annealing device according to claim 2, wherein a fixed block is mounted on the semi-open type moving metal annealing pipe, and the front end of the arm is connected with the fixed block.
4. The optical fiber drawing annealing device according to claim 3, wherein the electric device comprises a power part and a transmission rod, the support is mounted on the transmission rod, and the power part drives the transmission rod to move the support and the moving metal annealing pipe up and down.
5. The optical fiber drawing annealing device according to any one of claims 1 to 4, wherein the lower end of the second quartz extension tube is screwed to the second fixing bracket by a rear stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021324683.3U CN213060660U (en) | 2020-07-08 | 2020-07-08 | Optical fiber drawing annealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021324683.3U CN213060660U (en) | 2020-07-08 | 2020-07-08 | Optical fiber drawing annealing device |
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| Publication Number | Publication Date |
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| CN213060660U true CN213060660U (en) | 2021-04-27 |
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| CN202021324683.3U Active CN213060660U (en) | 2020-07-08 | 2020-07-08 | Optical fiber drawing annealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113929462A (en) * | 2021-10-16 | 2022-01-14 | 上杭鑫昌龙实业有限公司 | Novel optical fiber annealing tube and preparation process thereof |
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2020
- 2020-07-08 CN CN202021324683.3U patent/CN213060660U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113929462A (en) * | 2021-10-16 | 2022-01-14 | 上杭鑫昌龙实业有限公司 | Novel optical fiber annealing tube and preparation process thereof |
| CN113929462B (en) * | 2021-10-16 | 2022-08-09 | 上杭鑫昌龙实业有限公司 | Optical fiber annealing pipe and preparation process thereof |
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