CN207845493U - Drawing optical fibers annealing device - Google Patents
Drawing optical fibers annealing device Download PDFInfo
- Publication number
- CN207845493U CN207845493U CN201820252068.2U CN201820252068U CN207845493U CN 207845493 U CN207845493 U CN 207845493U CN 201820252068 U CN201820252068 U CN 201820252068U CN 207845493 U CN207845493 U CN 207845493U
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- annealing
- annealing pipe
- mobile
- air blowing
- outer tube
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of drawing optical fibers annealing devices, it includes fiber drawing furnace, fixed annealing pipe, mobile annealing pipe and the driving portion for driving mobile annealing pipe movement, the graphite liner set and be installed on outer tube lower end and into mobile annealing pipe for the first air blowing portion of inert gas that mobile annealing pipe includes outer tube, is fixedly installed in outer tube, the baffle that first air blowing portion includes shell, is installed in shell, baffle are equipped with the upper flow-guiding channel for respectively conveying inert gas to mobile annealing pipe top and bottom and lower flow-guiding channel.The utility model can also be made by lower air blowing while reducing optical fiber internal stress reduction micro-crack and finally reducing optical fiber attenuation in fiber drawing furnace and the silicon carbide of annealing nozzle deposition is collected in the exhaust gas collection plate of wire drawing fire door, effective to improve fiber strength and efficient attenuation.
Description
Technical field
The utility model is related to optical fiber producing apparatus, more particularly to a kind of drawing optical fibers annealing device.
Background technology
Internal optical fiber drawing process is basicly stable now, and the length of common wire drawing and annealing device thermal field is shorter and thermal field
Interior minimum temperature is higher, the annealing device as disclosed in the patent application of Publication No. CN106019465A, inert gas from
Enter above fiber drawing furnace, during going under an inert gas, the temperature of gas is higher and higher so that the temperature of thermal field is not from upper
The length of the case where continuously decreasing down, thermal field is shorter and thermal field in minimum temperature it is higher, the temperature when optical fiber goes out annealing pipe
Degree is still kept as higher.But under the pressure of society to the communication need of message capacity big over long distances, drawing optical fibers producer is to wire drawing
Technique advanced optimize to reduce optical fiber attenuation.Most basic method is to reduce optical fiber internal stress to reduce micro-crack.
Many producers, which all expect fully annealing to optical fiber, reduces internal stress to reduce crizzle.Also some producers are under annealing pipe
Install annealing furnace additional, there are two drawbacks in this way：1. the annealing furnace of installation takes up space.2. annealing furnace will heat waste electric energy.
Invention content
The purpose of this utility model is to provide a kind of energy-saving convenient and optical fiber is made fully to anneal drawing optical fibers annealing device.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of drawing optical fibers annealing device, it includes
Fiber drawing furnace, the fixation annealing pipe being connected to below fiber drawing furnace, it further includes being sealedly attached to below the fixed annealing pipe to be used for
Extend the mobile annealing pipe of annealing thermal field and the driving portion for driving the mobile annealing pipe movement, the mobile annealing pipe
Including outer tube, the graphite liner being fixedly installed in outer tube set and it is installed on the outer tube lower end and is moved back to movement
For the first air blowing portion of inert gas in fire tube, first air blowing portion includes shell, the baffle that is installed in the shell,
The baffle is equipped with the upper flow-guiding channel for respectively conveying the inert gas to mobile annealing pipe top and bottom under
Flow-guiding channel.
Optimization, the driving portion includes screw mandrel drive mechanism, and the screw mandrel drive mechanism includes screw rod and threaded connection
With the nut on the screw rod, the driving mechanism further includes being connected between the nut of the screw body and the outer tube
Connector.
Further, the connector includes rotate connection and the first connecting rod and second connecting rod that can lock, and described
One connecting rod and the second connecting rod rotate and connect with the outer tube and the nut respectively, and the first connecting rod and described
Outer tube, the second connecting rod and the nut fix relative position by lock pin respectively.
Optimization, be equipped with the second air blowing portion below the fiber drawing furnace, the inert gas that second air blowing portion is blown into it is close
Degree is more than the inert gas density that the first air blowing portion is blown into.
Optimization, the flow of the inert gas in the upper flow-guiding channel is more than the stream of the inert gas in lower flow-guiding channel
Amount.
Optimization, the angle of the upper flow-guiding channel and the axis of graphite liner set is 20 °~40 °.
Optimization, the angle of the lower flow-guiding channel and the axis of graphite liner set is 40 °~60 °.
Optimization, the bottom cover of shell offers the through hole of optical fiber, and the lower end in first air blowing portion is equipped with for controlling
The shutter of mobile annealing pipe and fixed annealing pipe interior air-flow size, the shutter include rotate with the shell lower end connect and
By rotating to adjust the valve block of through hole size, the shaft of the valve block is perpendicular to the bottom cover.
Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model
Mobile annealing pipe adjusts position by the driving portion, decides whether to install additional according to the demand of various optical fiber, in fixed annealing pipe
Lower section, which installs mobile annealing pipe additional, can extend the length of thermal field, and the first air blowing portion is arranged below mobile annealing pipe and first blows
Portion output inert gas density be less than the second air blowing portion output inert gas density, therefore the first air blowing portion output
Inert gas can uplink temperature during uplink gradually rise, until reach wire drawing furnace tube port, formed a lowering temperature uniform
And it is notable, while the thermal field that length is longer, the gas of rising can simultaneously blow the silicon carbide in fiber drawing furnace and fixed annealing pipe
To the gas sampling plate of fiber drawing furnace fire door.Reaching, which reduces optical fiber internal stress reduction micro-crack, finally reduces optical fiber attenuation, simultaneously
It can also be made by lower air blowing in fiber drawing furnace and the silicon carbide of annealing nozzle deposition is collected and collects plate in the exhaust gas of wire drawing fire door
It is interior, it is effective to improve fiber strength and efficient attenuation.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of annealing device；
Attached drawing 2 is the structural schematic diagram in the first air blowing portion；
Attached drawing 3 is the structural schematic diagram of shutter.
Specific implementation mode
Embodiment shown in below in conjunction with the accompanying drawings is further described the utility model.
As shown in Figure 1, drawing optical fibers annealing device includes fiber drawing furnace, the fixation annealing pipe 5 that is connected to below fiber drawing furnace, close
Envelope is connected to 5 lower section of the fixed annealing pipe and is used to extend the mobile annealing pipe 6 of annealing thermal field, for driving the mobile annealing
The driving portion air gauge 7 being installed on the fixed annealing pipe 5 and the oxygen being installed on mobile annealing pipe analysis that pipe 6 moves
Instrument 8.
The mobile annealing pipe 6 includes outer tube 12, the graphite liner being fixedly installed in the outer tube 12 set 11 and peace
Loaded on 12 lower end of the outer tube and into mobile annealing pipe 6 for the first air blowing portion 9 of inert gas, as shown in Fig. 2, described
First air blowing portion 9 includes shell 13, the baffle 14 being installed in the shell 13, and the baffle 14 is equipped with respectively by institute
State the upper flow-guiding channel 15 and lower flow-guiding channel 16 that inert gas is conveyed to 6 top and bottom of mobile annealing pipe.
The second air blowing portion is equipped with below the fiber drawing furnace（Fiber drawing furnace and the second air blowing portion are the prior art, are not done herein
It repeats）, the density for the inert gas that second air blowing portion is blown into is more than the inert gas density that the first air blowing portion 9 is blown into.Institute
The flow for stating the inert gas in flow-guiding channel 15 is more than the flow of the inert gas in lower flow-guiding channel 16.The upper water conservancy diversion
Channel 15 and the angle of the axis of graphite liner set 11 are 20 °~40 °.The lower flow-guiding channel 16 and the graphite liner
The angle of the axis of set 11 is 40 °~60 °.In the present embodiment, upper flow-guiding channel 15 with lower flow-guiding channel 16 respectively by a plurality of,
Uniformly outer side runner is formed between shell 13 and baffle 14, with upper water conservancy diversion around the axis of graphite liner set 11 respectively
Channel 15 is connected with lower flow-guiding channel 16, and the side wall of shell 13 is equipped with air inlet.
The bottom cover of shell 13 offers the through hole of optical fiber, and the lower end in first air blowing portion 9 is equipped with for controlling movement
The shutter of 5 interior air-flow size of annealing pipe 6 and fixed annealing pipe, as shown in figure 3, the shutter includes and 13 lower end phase of the shell
Rotation connection and the valve block 10 by rotating to adjust through hole size, the shaft of the valve block 10 is perpendicular to the bottom cover.
In the present embodiment, valve block 10 has two panels and symmetrical setting, and half round cut is respectively offered on valve block 10, and two valve blocks 10 close
Latter two half round cut is closed to be closed to form circular through holes.
The driving portion includes screw mandrel drive mechanism, the screw mandrel drive mechanism include screw rod 1 and be threadedly coupled with it is described
Nut 2 on screw rod 1, the driving mechanism further include being connected between the nut 2 of the screw body and the outer tube 12
Connector.The connector includes rotate connection and the first connecting rod 3 and second connecting rod 4 that can lock, 3 He of the first connecting rod
The second connecting rod 4 rotates and connect with the outer tube 12 and the nut 2 respectively, and the first connecting rod 3 and described outer
Pipe 12, the second connecting rod 4 and the nut 2 fix relative position by lock pin respectively.
The operation principle of the utility model is as follows：Mobile annealing pipe is sent to fixed annealing pipe first with driving portion
Near, it is finely adjusted using connector, so that mobile annealing pipe is moved to immediately below fixed annealing pipe, then connector is locked, then
Screw rod is rotated, mobile annealing pipe uplink and fixed annealing seal of tube splicing are driven, then fiber drawing furnace can start to work, meanwhile,
Second air blowing portion and the work of the first air blowing portion, form, form a lowering temperature uniform and notable, while the thermal field that length is longer, on
Silicon carbide in fiber drawing furnace and fixed annealing pipe can be blown in the gas sampling plate of fiber drawing furnace fire door by the gas risen simultaneously.It reaches
Optical fiber attenuation is finally reduced to optical fiber internal stress reduction micro-crack is reduced, passes through the decaying for the optical fiber that above-mentioned fiber drawing furnace produces
It is low, while the silicon carbide that in fiber drawing furnace and annealing nozzle deposits can also be made to collect the exhaust gas in wire drawing fire door by lower air blowing
It collects in plate, it is effective to improve fiber strength and efficient attenuation.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, the scope of protection of the utility model can not be limited with this.
It is all according to equivalent change or modification made by the spirit of the present invention essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (8)
1. a kind of drawing optical fibers annealing device, it includes fiber drawing furnace, the fixation annealing pipe that is connected to below fiber drawing furnace, and feature exists
In：It further includes being sealedly attached to the mobile annealing pipe for being used to extend annealing thermal field below the fixed annealing pipe and being used for band
The driving portion of the dynamic mobile annealing pipe movement, the mobile annealing pipe includes outer tube, the stone that is fixedly installed in the outer tube
It black neck bush and is installed on the outer tube lower end and into mobile annealing pipe for the first air blowing portion of inert gas, it is described
The baffle that first air blowing portion includes shell, is installed in the shell, the baffle are equipped with respectively by the indifferent gas
The upper flow-guiding channel and lower flow-guiding channel that body is conveyed to mobile annealing pipe top and bottom.
2. drawing optical fibers annealing device according to claim 1, it is characterised in that：The driving portion includes lead screw driving machine
Structure, the screw mandrel drive mechanism include screw rod and threaded connection and the nut on the screw rod, and the driving mechanism further includes connecting
The connector being connected between the nut of the screw body and the outer tube.
3. drawing optical fibers annealing device according to claim 2, it is characterised in that：The connector includes the connection that rotates
And the first connecting rod and second connecting rod that can be locked, the first connecting rod and the second connecting rod respectively with the outer tube and the spiral shell
Parent phase is rotatablely connected, and the first connecting rod and outer tube, the second connecting rod and nut are solid by lock pin respectively
Determine relative position.
4. drawing optical fibers annealing device according to claim 1, it is characterised in that：It is blown equipped with second below the fiber drawing furnace
The density in gas portion, the inert gas that second air blowing portion is blown into is more than the inert gas density that the first air blowing portion is blown into.
5. drawing optical fibers annealing device according to claim 1, it is characterised in that：Indifferent gas in the upper flow-guiding channel
The flow of body is more than the flow of the inert gas in lower flow-guiding channel.
6. drawing optical fibers annealing device according to claim 1, it is characterised in that：The upper flow-guiding channel and the graphite
The angle of the axis of neck bush is 20 °~40 °.
7. drawing optical fibers annealing device according to claim 1, it is characterised in that：The lower flow-guiding channel and the graphite
The angle of the axis of neck bush is 40 °~60 °.
8. drawing optical fibers annealing device according to claim 1, it is characterised in that：The bottom cover of shell offers the logical of optical fiber
Via, the lower end in first air blowing portion are equipped with the shutter for controlling mobile annealing pipe and fixed annealing pipe interior air-flow size,
The shutter includes rotating to connect and the valve block by rotating to adjust through hole size with the shell lower end, the valve
The shaft of piece is perpendicular to the bottom cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252068.2U CN207845493U (en) | 2018-02-12 | 2018-02-12 | Drawing optical fibers annealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252068.2U CN207845493U (en) | 2018-02-12 | 2018-02-12 | Drawing optical fibers annealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207845493U true CN207845493U (en) | 2018-09-11 |
Family
ID=63408799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820252068.2U Withdrawn - After Issue CN207845493U (en) | 2018-02-12 | 2018-02-12 | Drawing optical fibers annealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207845493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383375A (en) * | 2018-02-12 | 2018-08-10 | 江苏富春江光电有限公司 | Drawing optical fibers annealing device and optical fiber |
-
2018
- 2018-02-12 CN CN201820252068.2U patent/CN207845493U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383375A (en) * | 2018-02-12 | 2018-08-10 | 江苏富春江光电有限公司 | Drawing optical fibers annealing device and optical fiber |
| WO2019153473A1 (en) * | 2018-02-12 | 2019-08-15 | 江苏富春江光电有限公司 | Optical fiber drawing and annealing device and optical fiber |
| CN108383375B (en) * | 2018-02-12 | 2023-08-04 | 浙江富春江光电科技有限公司 | Optical fiber drawing annealing device and optical fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180911 Effective date of abandoning: 20230804 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180911 Effective date of abandoning: 20230804 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |