CN208562157U - Drawing optical fibers annealing device - Google Patents
Drawing optical fibers annealing device Download PDFInfo
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- CN208562157U CN208562157U CN201820755073.5U CN201820755073U CN208562157U CN 208562157 U CN208562157 U CN 208562157U CN 201820755073 U CN201820755073 U CN 201820755073U CN 208562157 U CN208562157 U CN 208562157U
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Abstract
The utility model discloses a kind of drawing optical fibers annealing devices, including annealing pipe, the axial cavity penetrated for optical fiber is equipped in the annealing pipe, the tubular body of the annealing pipe is equipped with electric heater, the electric heater is arranged around axial cavity, the temperature in axial cavity penetrate axial cavity along optical fiber to gradually decrease to the direction that optical fiber is pierced by axial cavity by adjusting the operating temperature of the electric heater；It further includes annealing assistor, and the annealing assistor is sealedly connected on the optical fiber traversing through end of annealing pipe, and bushing pipe is equipped in the annealing assistor, and the bushing pipe and axial cavity are coaxially disposed.The drawing optical fibers annealing device of the utility model optimizing structure design, it is docked with fiber drawing furnace, drawing optical fibers enter in the annealing device that temperature slowly reduces after coming out of the stove, and can improve attenuation characteristic, warping characteristic and the inside of optical fibre stress of optical fiber, the whole quality for improving optical fiber.
Description
Technical field
The utility model belongs to silica fibre manufacturing field, and in particular to a kind of drawing optical fibers annealing device, energy after use
Enough improve the decaying and angularity of optical fiber.
Background technique
As optical fiber dosage is more and more, existing market is in the state that supply falls short of demand, and internal optical fiber manufacturer is numerous and confused
Yield is improved by raising speed, some producers raise speed to 2800m/min, and equipment still continues to use the fiber drawing furnace of 2000m/min, mention
It is unstable that optical fiber parameter is easy to appear after speed, or even appearance is unqualified, such as angularity, decaying etc., the production of these technical problems
Life is all quickly to receive silk because of optical fiber after speed-raising to lead to fiber surface temperature rapid drawdown, so that the decaying of naked fibre and angularity are not achieved
Target call.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of drawing optical fibers annealing devices, and drawing optical fibers are come out of the stove laggard
Enter in the annealing device that temperature slowly reduces, decaying, warping characteristic and the inside of optical fibre stress of optical fiber can be improved, it is whole to improve
The quality of optical fiber.
In order to solve the above-mentioned technical problem, the utility model provides a kind of drawing optical fibers annealing device, including annealing pipe,
The axial cavity penetrated for optical fiber is equipped in the annealing pipe, the tubular body of the annealing pipe is equipped with electric heater, the electricity
Heater is arranged around axial cavity, makes the temperature in axial cavity along light by adjusting the operating temperature of the electric heater
Fibre penetrates axial cavity and gradually decreases to the direction that optical fiber is pierced by axial cavity；
It further includes annealing assistor, and the annealing assistor is sealedly connected on the optical fiber traversing through end of annealing pipe, described to move back
Bushing pipe is equipped in fiery assistor, the bushing pipe and axial cavity are coaxially disposed.
It further comprise that the electric heater has the several of independent temperature control in one preferred embodiment of the utility model
Group, each electric heater penetrate axial cavity along optical fiber and set gradually to the direction that optical fiber is pierced by axial cavity.
It further comprise that the cavity wall of the axial cavity is equipped with graphite piece, institute in one preferred embodiment of the utility model
The end for stating graphite piece is connect with bushing pipe.
It further comprise that the end of the graphite piece is equipped with plug division in one preferred embodiment of the utility model, it is described
The end of bushing pipe connecting with graphite piece is equipped with step annular groove, and plug division is entrenched in platform after the graphite piece and bushing pipe coaxial arrangement
In rank annular groove.
It further comprise that the outside of the graphite piece is equipped with insulating layer in one preferred embodiment of the utility model.
It further comprise the axial cavity include chamber diameter diminishing in one preferred embodiment of the utility model
One cavity segment and equivalent the second cavity segment of chamber diameter, second cavity segment is connect with the small-caliber end of the first cavity segment, described
Annealing assistor is sealedly connected on the second cavity segment of annealing pipe.
In one preferred embodiment of the utility model, further comprise the annealing assistor have can open or close
The first fission and the second fission closed, both first fission and the second fission are equipped with semicircle positioned at the end of closing direction
The mounting groove of shape structure；The bushing pipe is mounted in the first seperated mounting groove with after the second fission closure.
It further comprise that the outer tube wall of the bushing pipe is equipped with fixed ear, institute in one preferred embodiment of the utility model
The cell wall for stating mounting groove is equipped with inner groovy, and the fixed ear and inner groovy cooperate so that bushing pipe is solid after axially penetrating in mounting groove
It is scheduled in annealing assistor.
In one preferred embodiment of the utility model, further comprise the bushing pipe be graphite bushing pipe, the graphite bushing pipe
Bottom be equipped with caliber expansion segment.
It further comprise that the bottom of the annealing assistor is equipped with pedestal, institute in one preferred embodiment of the utility model
Pedestal is stated equipped with sealing gland channel, protective gas is passed through into bushing pipe by the sealing gland channel.
The drawing optical fibers annealing device of the utility model optimizing structure design, is docked with fiber drawing furnace, after drawing optical fibers are come out of the stove
In the annealing device slowly reduced into temperature, attenuation characteristic, warping characteristic and the inside of optical fibre stress of optical fiber can be improved, it is whole
The quality of body raising optical fiber.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of drawing optical fibers annealing device in the preferred embodiment in the utility model.
Wherein: 1- optical fiber, 2- annealing pipe, 4- axial cavity, 6- electric heater, 8- annealing assistor, 10- bushing pipe, 12- stone
Black part, the plug division 14-, 16- step annular groove, 18- insulating layer, the first cavity segment of 20-, the second cavity segment of 22-, 24- first is seperated,
26- second is seperated, 28- mounting groove, 30- fixed ear, 32- inner groovy, 34- caliber expansion segment, 36- pedestal, 38- sealing gland channel,
40- sealing ring.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Embodiment one
As shown in Figure 1, present embodiment discloses a kind of drawing optical fibers annealing device, including annealing pipe 2 and annealing assistor
8, the top of above-mentioned annealing pipe 2 is docked with fiber drawing furnace, and annealing assistor 8 is sealedly connected on the bottom of annealing pipe 2, assistor of annealing
8 bottom is connected through a screw thread pedestal 36, and entire annealing device is supported by pedestal 36.It is equipped in above-mentioned annealing pipe 2 axial
Cavity 4, the cavity wall of above-mentioned axial cavity 4 are equipped with graphite piece 12, are equipped with graphite bushing pipe 10, above-mentioned lining in above-mentioned annealing assistor 8
Pipe 10 and axial cavity 4 are coaxially disposed, and the end of above-mentioned graphite piece 12 is connect with bushing pipe 10.1 wire drawing of optical fiber enters axis after coming out of the stove
To cavity 4, enters in graphite bushing pipe 10 after being pierced by axial cavity 4, be finally pierced by from graphite bushing pipe 10 into room temperature ring
The annealing after drawing optical fibers are come out of the stove is completed in border.The tubular body of above-mentioned annealing pipe 2 is equipped with electric heater 6, above-mentioned electric heating
Device 6 is arranged around axial cavity 4, makes the temperature in axial cavity 4 along light by adjusting the operating temperature of above-mentioned electric heater 6
Fibre 1 penetrates axial cavity 4 and gradually decreases to the direction that optical fiber is pierced by axial cavity 4.In the present embodiment technical solution, electric heater
6 when entering working condition, penetrates the temperature that axial cavity 4 is pierced by optical fiber the direction of axial cavity 4 along optical fiber 1 in axial cavity 4
Degree variation is 1500 DEG C to 1000 DEG C, and optical fiber, which is pierced by axial cavity 4, to be entered in graphite bushing pipe 10, and graphite bushing pipe 10 is to optical fiber 1
Extension annealing is carried out, the surface temperature of optical fiber 1 is further decreased.Optical fiber in axial cavity 4 gradually, slowly reduce surface
Temperature, and the extension of graphite bushing pipe 10 is combined to make annealing treatment, it is special compared to the decaying that traditional quick receipts fibre can improve optical fiber
Property, warping characteristic and optical fiber internal stress, the whole quality for improving optical fiber.
The gradient adjustment of 4 temperature of axial cavity is preferably achieved through the following technical solutions: above-mentioned electric heater 6 has only
The several groups of vertical temperature control, each above-mentioned electric heater 6 along optical fiber 1 penetrate axial cavity 4 to optical fiber be pierced by the direction of axial cavity 4 according to
Secondary setting.In the present embodiment technical solution, pre-plugged is in tube body when above-mentioned electric heater 6 is produced it is preferable to use annealing pipe 2
Electric heating coil, and the mesh of temperature in axial cavity 4 is preferably adjusted by adjusting power of the load in electric heating coil
's.The variation for realizing 1500 DEG C to 1000 DEG C can be set multiple temperature gradients, such as be arranged six along the moving direction of optical fiber 1
The electric heater 6 of the independent temperature control of group, realizes the temperature gradient in axial cavity 4 are as follows: 1500 DEG C → 1400 DEG C → 1300 DEG C →
1200℃→1100℃→1000℃；Certainly, according to actual needs, can also change between the temperature between each temperature gradient
Every and gradient series.
In the present embodiment technical solution, above-mentioned electric heater 6 electrical connection to peripheral control unit, by peripheral control unit come
It realizes the adjust automatically of 6 heating power of electric heater, and temperature sensing can be set each temperature nodes in axial cavity 4
Device returns the temperature value of each node in real time, and intuitive display in the display.
The outside of above-mentioned graphite piece 12 is equipped with insulating layer 18, and setting insulating layer 18 ensures the stabilization of temperature in axial cavity 4,
Temperature fluctuation is reduced, the total quality and performance that improve optical fiber are conducive to.On the other hand, insulating layer 18 is arranged in 12 He of graphite piece
Between tube body, the tube body isolation insulating layer 18 and electric heater 6 of annealing pipe prevent electric discharge phenomena.
Above-mentioned axial cavity 4 includes diminishing first cavity segment of chamber diameter as a further improvement of the utility model,
20 and equivalent the second cavity segment 22 of chamber diameter, above-mentioned second cavity segment 22 is connect with the small-caliber end of the first cavity segment 20, above-mentioned
Annealing assistor 8 is sealedly connected on the second cavity segment 22 of annealing pipe 2.Designed with this may insure optical fiber string diameter stability and
Uniformity.
In order to facilitate dismounting and fixing, above-mentioned annealing assistor 8 has seperated 24 Hes of first that can open or be closed
Second fission 26, the end that both above-mentioned first fission 24 and the second fission 26 are located at closing direction are equipped with semicircular structure
Mounting groove 28；Above-mentioned bushing pipe 10 is mounted in the above-mentioned mounting groove 28 after the first seperated 24 and second fission 26 is closed.Specifically,
The outer tube wall of above-mentioned bushing pipe 10 is equipped with fixed ear 30, and the cell wall of above-mentioned mounting groove 28 is equipped with inner groovy 32, above-mentioned fixed ear
30 and inner groovy 32 cooperate so that bushing pipe 10 is axial penetrate in mounting groove 28 after be fixed in annealing assistor 8.In wire-drawing operation
Before, the first fission 24 and the second fission 26 are opened, and graphite bushing pipe 10 are placed in mounting groove 28, and fixed ear 30 is inserted into inner groovy
It is fixed in 32, then it is closed the first fission 24 and the second fission 26.
As shown in Figure 1, the end of above-mentioned graphite piece 12 is equipped with plug division 14, above-mentioned bushing pipe 10 is connect with graphite piece 12
End is equipped with step annular groove 16, and plug division 14 is entrenched in step annular groove 16 after above-mentioned graphite piece 12 and bushing pipe 10 are coaxially disposed.
Graphite bushing pipe 10 is assembled in mounting groove 28 and after the first fission 24 of closure and the second fission 26, and annealing assistor 8 is whole upwards
Mobile 2mm, so that plug division 14 is entrenched in step annular groove 16, pair that annealing pipe 2 can be realized between assistor 8 of annealing
It connects, sealing ring 40 can be designed on annealing assistor 8, the sealing docking for realizing annealing pipe 2 between assistor 8 of annealing.
Above-mentioned pedestal 36 is equipped with sealing gland channel 38, is passed through protective gas into bushing pipe 10 by above-mentioned sealing gland channel 38,
Above-mentioned annealing pipe 2 is equipped with sealing gland channel 38, and protective gas, such as nitrogen are passed through into annealing pipe 2 by sealing gland channel, protects
Gas plays sealing function in bushing pipe 10 and axial cavity 4.The bottom of above-mentioned graphite bushing pipe 10 is equipped with caliber expansion segment 34.
Protective gas in axial cavity 4 moves from top to bottom, and the gas in bushing pipe 10 moves from top to bottom, and optical fiber moves from top to bottom
Dynamic, so that gas is mobile to fat pipe via narrow passage, gas can flow to fat pipe for the design of caliber expansion segment 34, so as to
Effectively collect volatile matter.
In addition, be additionally provided with the circulation line for going rancid on above-mentioned annealing pipe 2, oil temperature is controlled at 25 DEG C or so, for reducing
2 surface temperature of annealing pipe, while playing the role of lubrication protection.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (10)
1. a kind of drawing optical fibers annealing device, including annealing pipe, the annealing pipe is interior to be equipped with the axial cavity penetrated for optical fiber,
Be characterized in that: the tubular body of the annealing pipe is equipped with electric heater, and the electric heater is arranged around axial cavity, passes through tune
The operating temperature of the whole electric heater the temperature in axial cavity penetrate axial cavity along optical fiber to be pierced by axial direction to optical fiber
The direction of cavity gradually decreases；
It further includes annealing assistor, and the annealing assistor is sealedly connected on the optical fiber traversing through end of annealing pipe, and the annealing is auxiliary
It helps and is equipped with bushing pipe in device, the bushing pipe and axial cavity are coaxially disposed.
2. drawing optical fibers annealing device as described in claim 1, it is characterised in that: the electric heater has independent temperature control
Several groups, each electric heater penetrate axial cavity along optical fiber and set gradually to the direction that optical fiber is pierced by axial cavity.
3. drawing optical fibers annealing device as described in claim 1, it is characterised in that: the cavity wall of the axial cavity is equipped with graphite
The end of part, the graphite piece is connect with bushing pipe.
4. drawing optical fibers annealing device as claimed in claim 3, it is characterised in that: the end of the graphite piece is equipped with grafting
Portion, the end of the bushing pipe connecting with graphite piece are equipped with step annular groove, plug division after the graphite piece and bushing pipe coaxial arrangement
It is entrenched in step annular groove.
5. drawing optical fibers annealing device as claimed in claim 3, it is characterised in that: the outside of the graphite piece is equipped with heat preservation
Layer.
6. drawing optical fibers annealing device as described in claim 1, it is characterised in that: the axial cavity includes that chamber diameter gradually contracts
The small-caliber end of the second equivalent cavity segment of small the first cavity segment and chamber diameter, second cavity segment and the first cavity segment connects
It connects, the annealing assistor is sealedly connected on the second cavity segment of annealing pipe.
7. drawing optical fibers annealing device as described in claim 1, it is characterised in that: the annealing assistor has and can open
Or the first fission and the second fission of closure, both first fission and the second fission are all provided with positioned at the end of closing direction
There is the mounting groove of semicircular structure；The bushing pipe is mounted in the first seperated mounting groove with after the second fission closure.
8. drawing optical fibers annealing device as claimed in claim 7, it is characterised in that: the outer tube wall of the bushing pipe, which is equipped with, to be fixed
Ear, the cell wall of the mounting groove are equipped with inner groovy, and the fixed ear and inner groovy cooperation are so that bushing pipe axially penetrates mounting groove
It is fixed on after interior in annealing assistor.
9. drawing optical fibers annealing device as claimed in claim 7, it is characterised in that: the bushing pipe is graphite bushing pipe, the stone
The bottom of black bushing pipe is equipped with caliber expansion segment.
10. drawing optical fibers annealing device as described in claim 1, it is characterised in that: the bottom of the annealing assistor is equipped with
Pedestal, the pedestal are equipped with sealing gland channel, are passed through protective gas into bushing pipe by the sealing gland channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755073.5U CN208562157U (en) | 2018-05-21 | 2018-05-21 | Drawing optical fibers annealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755073.5U CN208562157U (en) | 2018-05-21 | 2018-05-21 | Drawing optical fibers annealing device |
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| Publication Number | Publication Date |
|---|---|
| CN208562157U true CN208562157U (en) | 2019-03-01 |
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ID=65481892
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820755073.5U Active CN208562157U (en) | 2018-05-21 | 2018-05-21 | Drawing optical fibers annealing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409130A (en) * | 2018-05-21 | 2018-08-17 | 江苏亨通光纤科技有限公司 | Drawing optical fibers annealing device |
| CN111470771A (en) * | 2020-04-08 | 2020-07-31 | 杭州辉吉信息技术有限公司 | Optical fiber wire drawing annealing extension tube based on temperature cavity division principle |
-
2018
- 2018-05-21 CN CN201820755073.5U patent/CN208562157U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409130A (en) * | 2018-05-21 | 2018-08-17 | 江苏亨通光纤科技有限公司 | Drawing optical fibers annealing device |
| CN111470771A (en) * | 2020-04-08 | 2020-07-31 | 杭州辉吉信息技术有限公司 | Optical fiber wire drawing annealing extension tube based on temperature cavity division principle |
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