CN108675629A - A kind of preform enters stove centering method and fibre drawing furnace - Google Patents
A kind of preform enters stove centering method and fibre drawing furnace Download PDFInfo
- Publication number
- CN108675629A CN108675629A CN201810948432.3A CN201810948432A CN108675629A CN 108675629 A CN108675629 A CN 108675629A CN 201810948432 A CN201810948432 A CN 201810948432A CN 108675629 A CN108675629 A CN 108675629A
- Authority
- CN
- China
- Prior art keywords
- preform
- drawing furnace
- light source
- fiber drawing
- linear light
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 title claims description 15
- 238000012681 fiber drawing Methods 0.000 claims abstract description 76
- 230000007423 decrease Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 20
- 239000012212 insulator Substances 0.000 claims description 8
- 238000005491 wire drawing Methods 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009992 mercerising Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/0253—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/029—Furnaces therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The present invention discloses a kind of preform and enters stove centering method, enter fire door setting at the top of fiber drawing furnace removably and positioned at the linear light source of fiber drawing furnace center, the linear light source sends out the light along fiber drawing furnace center straight up, preform is suspended on feeding means to be declined by entering fire door at the top of its band trend fiber drawing furnace, feeding means is adjusted during declining keeps the tip of preform to be overlapped with the light of linear light source, preform is kept to continue to decline and remove linear light source and enter in fiber drawing furnace by preform when preform enters fire door close at the top of fiber drawing furnace.The present invention carries out the positioning of preform using linear light source, linear light source identifies fiber drawing furnace center position, conveniently, accurately can adjust feeding means makes preform just be overlapped with fiber drawing furnace center in higher height, disposable adjust arrives exact position, reduce the error of centralization, adjust that efficient, accuracy is high, operation is time saving and energy saving.
Description
Technical field
Enter stove centering method the present invention relates to removal of impurities material sieving technology field more particularly to a kind of preform and optical fiber is drawn
Silk stove.
Background technology
The preparation of optical fiber is to be sent into preform in fiber drawing furnace under the control of feeding means, the end of preform
Head in fiber drawing furnace more than 2000 DEG C at melt, viscosity reduce, under surface tension effects rapidly shrink attenuate, and by traction dress
Set at the appropriate speed and tension pull into downwards filament, finally through supercooling, coating and ultra-violet curing technique productions go out optical fiber at
Optical fiber is accommodated on fiber reel by product finally by wrap-up.
It is a critical process prepared by optical fiber by preform feeding fiber drawing furnace, it is necessary to ensure that preform is in
The center of the heater of fiber drawing furnace avoids the occurrence of the situation of wire drawing bias so that it is guaranteed that preform is heated evenly, and ensures
Draw the geometric dimension and optical property of obtained optical fiber.It is manually to estimate that preform traditional at present, which enters stove centering method,
Relative position between preform and fiber drawing furnace open top, in preform lower end close to when fiber drawing furnace open top
By adjust feeding means adjust preform and fiber drawing furnace to neutrality, need frequent start-stop feeding means to carry out repeatedly
It adjusts, and there is impact and deviate in the shutdown process of feeding means, cause the site error of preform big, enter in prefabricated rods
After fiber drawing furnace, if it find that the case where in the presence of non-centering, need to exit preform from fiber drawing furnace carrying out secondary delivery,
It is time-consuming and laborious, inefficiency, if it find that be also easy to that preform is made to touch furnace wall not in time, make prefabricated rods surface and
The inner wall of furnace body damages, and will appear the situation of wire drawing bias to neutral difference, influences the quality of drawing optical fibers.
Invention content
The technical problems to be solved by the invention and the technical assignment of proposition are improved to the prior art, and one kind is provided
Preform enters stove centering method, and solving preform traditional in current technology, to enter the stove centering method error of centralization big,
Operate it is time-consuming and laborious, the problem of inefficiency.
In order to solve the above technical problems, the technical scheme is that：
A kind of preform enters stove centering method, and it is dismountable and be located at wire drawing that fire door setting is entered at the top of fiber drawing furnace
The linear light source of stove center, the linear light source send out the light along fiber drawing furnace center straight up, preform
It is suspended on feeding means and is declined by entering fire door at the top of its band trend fiber drawing furnace, feeding means is adjusted during declining and keeps light
The tip of fine prefabricated rods is overlapped with the light of linear light source, and predispersed fiber is kept when preform enters fire door close at the top of fiber drawing furnace
Stick processed, which continues to decline and remove linear light source, to be entered by preform in fiber drawing furnace.Preform of the present invention enters stove pair
Middle method carries out the positioning of preform using the linear light source to emit beam along fiber drawing furnace center, and preform exists
Its tip is overlapped with the light of linear light source always during decline, so that preform is all along fiber drawing furnace center
Decline, linear light source identifies fiber drawing furnace center position, conveniently, accurately can adjust feeding means and preform is existed
Higher height is just overlapped with fiber drawing furnace center, without the repeatedly starting and stopping when preform lower end enters fire door close to fiber drawing furnace
Feeding means is adjusted, and can disposably be adjusted preform to exact position by linear light source, reduces the error of centralization, adjust
It saves that efficient, accuracy is high, avoids secondary delivery, preform is avoided to touch furnace wall, operation is time saving and energy saving, ensures optical fiber
Prefabricated rods are heated evenly in fiber drawing furnace, improve the drawing optical fibers quality of production.
Further, preform uniform descent during decline so that preform smooth decreasing,
It avoids the position that velocity perturbation leads to preform from shifting, ensures that preform is heavy with fiber drawing furnace center always
It closes, avoiding preform from being in contact with fiber drawing furnace causes to be damaged.
A kind of fibre drawing furnace entering stove centering method using above-mentioned preform, including furnace body, thermal insulator, heating
Device, central tube, inboard wall of furnace body install thermal insulator, and thermal insulator is looped around the periphery of ring heater, are set at the center of heater
The central tube concentric with heater is set, the fire door that enters of connection central tube is set at the top of furnace body, connection center is arranged in bottom of furnace body
The plug for outlet of pipe, which is characterized in that described entering removably is connected with the linear light source in fiber drawing furnace center, institute at fire door
The linear light source stated sends out the light along fiber drawing furnace center straight up.Fibre drawing furnace of the present invention is with linear light source
The position for identifying fiber drawing furnace center, convenient for accurately adjust feeding means make preform higher height just with
Fiber drawing furnace center overlaps, it is ensured that preform accurately enters in fiber drawing furnace, and centering degree of regulation is high, and operation is time saving
It is laborsaving, it avoids preform impaired, ensures the drawing optical fibers quality of production.
Further, described to enter the dismountable sealing cover being provided on fire door for sealing, linear light source is connected to close
In capping, ensures good inert gas environment in fiber drawing furnace using sealing cover, prevent oxygen from entering fiber drawing furnace, in fiber drawing furnace
Component materials generally use high purity graphite, extraneous air make graphite aoxidize at high temperature, influence graphite member after entering fiber drawing furnace
Service life, while the dust generated after graphite oxidation can be adhered to prefabricated rods and its melt part on, lead to manufactured light
Fine intensity declines, or even influences fade performance, it is therefore desirable to which fiber drawing furnace has good air-tightness, and is passed through inert gas
(such as argon gas, helium) keeps the atmosphere of inert gases of certain positive pressure in stove, to reach good protective effect, ensures and draw
The quality of mercerising fibre.Linear light source is connected on sealing cover, can easily be dismantled, and enters stove close to fiber drawing furnace in preform
Removing sealing cover when mouth can then allow preform to smoothly enter in fiber drawing furnace.
Further, described to enter to be provided with seal receptacle at fire door, the center of seal receptacle is overlapped with fiber drawing furnace center, close
Nested arrangement is covered in seal receptacle, linear light source is arranged at the center of sealing cover, and the standard of sealing cover position is ensured using seal receptacle
True property, to ensure that linear light source is accurately in fiber drawing furnace center, the preform that tip is overlapped with the light of linear light source
Then accurately it is in the center position of fiber drawing furnace.
Further, the sealing cover is rounded, easily and accurately controls linear light source and is in fiber drawing furnace center, improves
Centering accuracy.
Further, the linear light source is laser, and brightness is high, and good directionality, monochromaticjty is good, high temperature resistant.
Compared with prior art, the invention has the advantages that：
Preform of the present invention enters stove centering method and utilizes the linear light to emit beam along fiber drawing furnace center
Source carries out the positioning of preform, and linear light source identifies fiber drawing furnace center position, can conveniently, accurate adjust feeding
Device makes preform just be overlapped with fiber drawing furnace center in higher height, disposably adjusts preform to essence
True position reduces the error of centralization, and adjusting is efficient, accuracy is high, avoids secondary delivery, preform is avoided to touch stove
Wall ensures the integrity of preform, and operation is time saving and energy saving, ensures that preform is heated evenly in fiber drawing furnace, improves
The drawing optical fibers quality of production；
Fibre drawing furnace of the present invention is simple in structure, and centering is convenient, and operation is time saving and energy saving, improves production efficiency, if
It is simple to prepare work, uses high financial profit.
Description of the drawings
Fig. 1 is the structural schematic diagram of fiber drawing furnace.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of preform disclosed by the embodiments of the present invention enters stove centering method, can efficiently carry out preform with
The centering of fiber drawing furnace disposably enters stove in place, avoids frequent start-stop feeding means, and offset caused by start/stop impact is avoided to miss
Difference is improved to neutral accuracy, and operation is time saving and energy saving, efficient, is ensured that preform is heated evenly, is improved drawing optical fibers matter
Amount.
Preform enters stove centering method specifically, entering fire door setting at the top of fiber drawing furnace removably and positioned at drawing
The linear light source 5 of silk stove center, linear light source 5 send out the light along fiber drawing furnace center straight up, aobvious using linear light source 5
The center for identifying fiber drawing furnace write, preform are suspended on feeding means, at the top of feeding means band trend fiber drawing furnace
Enter fire door decline, adjusts feeding means and the tip of preform is overlapped with the light of linear light source 5, so as to higher
Just light prefabricated rods can be made to be overlapped with the center of fiber drawing furnace at position, easy to adjust, precision is high, linear light source 5 is beaten in predispersed fiber
Preform is adjusted to overlap with fiber drawing furnace center by the tip i.e. representative that the hot spot on stick processed is located at preform,
Feeding means drives the path uniform descent that emits beam along linear light source 5 of preform during decline, during making decline
It is more steady, reduce deviation, avoid light prefabricated rods contacted with fiber drawing furnace and caused by preform galled spots, in optical fiber
When prefabricated rods enter fire door close at the top of fiber drawing furnace, linear light source 5 is removed, and feeding means does not stop or slows down, remaining a constant speed makes
Preform continues to lower into fiber drawing furnace.
Enter the fibre drawing furnace of stove centering method based on above-mentioned preform, as shown in Figure 1, including furnace body 1, thermal insulator
2, heater 3, central tube 4,1 inner wall device of furnace body thermal insulator 2, and thermal insulator 2 is looped around the periphery of ring heater 3, is adding
The concentric central tube 4 of the centrally disposed and heater 3 of hot device 3,1 top setting connection central tube 4 of furnace body enter fire door 11, stove
The plug for outlet of 1 bottom of body setting connection central tube 4, described entering removably are connected at fire door 11 in fiber drawing furnace center
Linear light source 5, the linear light source 5 sends out the light along fiber drawing furnace center straight up.
In the present embodiment, entering and be provided with seal receptacle 7 at fire door 11, the center of seal receptacle 7 is overlapped with fiber drawing furnace center,
For 6 dismountable nested arrangement of sealing cover in seal receptacle 7, sealing cover 6 is rounded, and seal receptacle 7 is the periphery with sealing cover 6
The port of cooperation so that the center of seal receptacle 7 is overlapped with fiber drawing furnace center, linear light source 5 be arranged the center of sealing cover 6 to
Ensuring that linear light source 5 is on fiber drawing furnace center, linear light source 5 emits beam straight up, and linear light source 5 uses laser,
Brightness is high, and good directionality, monochromaticjty is good, high temperature resistant, and use reliability is high, and it is high that centering adjusts accuracy.
When needing preform being sent into fiber drawing furnace, 6 device of sealing cover on seal receptacle 7 and is first made into linear light source 5
Work sends out laser, while preform lifting being suspended on feeding means, adjusts feeding means and linear light source 5 is beaten
Hot spot on preform is located at the tip of preform, feeding means entering under fire door to fiber drawing furnace by preform
Drop, and remain that linear light source 5 beats the tip that the hot spot on preform is located at preform during declining,
The tip of preform detaches sealing cover 6 when being into contact with sealing cover 6 so that preform continues to lower into wire drawing
In stove.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (7)
1. a kind of preform enters stove centering method, which is characterized in that it is dismountable simultaneously to enter fire door setting at the top of fiber drawing furnace
And positioned at the linear light source (5) of fiber drawing furnace center, the linear light source (5) send out straight up along fiber drawing furnace center
Light, preform is suspended on feeding means to be declined by entering fire door at the top of its band trend fiber drawing furnace, is adjusted during declining
Section feeding means keeps the tip of preform to be overlapped with the light of linear light source (5), in preform close to wire drawing furnace roof
Preform is kept to continue to decline and remove linear light source (5) preform is allowed to enter in fiber drawing furnace when portion enters fire door.
2. preform according to claim 1 enters stove centering method, which is characterized in that the preform exists
Uniform descent during decline.
3. a kind of fibre drawing furnace entering stove centering method using preform described in claim 1, including furnace body (1), guarantor
Warm body (2), heater (3), central tube (4), furnace body (1) inner wall device thermal insulator (2), and thermal insulator (2) is looped around annular and adds
The periphery of hot device (3) is set at the top of the central tube (4) that the centrally disposed and heater (3) of heater (3) is concentric, furnace body (1)
That sets connection central tube (4) enters fire door (11), the plug for outlet of furnace body (1) bottom setting connection central tube (4), which is characterized in that
Described enters the linear light source (5) being removably connected at fire door (11) in fiber drawing furnace center, the linear light source (5) hair
Go out the light along fiber drawing furnace center straight up.
4. fibre drawing furnace according to claim 3, which is characterized in that described entering is provided on fire door (11) for close
Dismountable sealing cover (6) of envelope, linear light source (5) are connected on sealing cover (6).
5. fibre drawing furnace according to claim 4, which is characterized in that described entering is provided with seal receptacle at fire door (11)
(7), the center of seal receptacle (7) is overlapped with fiber drawing furnace center, and sealing cover (6) nested arrangement is in seal receptacle (7), linear light source
(5) center of the setting in sealing cover (6).
6. fibre drawing furnace according to claim 5, which is characterized in that the sealing cover is rounded.
7. fibre drawing furnace according to claim 3, which is characterized in that the linear light source (5) is laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948432.3A CN108675629A (en) | 2018-08-20 | 2018-08-20 | A kind of preform enters stove centering method and fibre drawing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948432.3A CN108675629A (en) | 2018-08-20 | 2018-08-20 | A kind of preform enters stove centering method and fibre drawing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108675629A true CN108675629A (en) | 2018-10-19 |
Family
ID=63815387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810948432.3A Pending CN108675629A (en) | 2018-08-20 | 2018-08-20 | A kind of preform enters stove centering method and fibre drawing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108675629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112897874A (en) * | 2021-05-07 | 2021-06-04 | 中天科技光纤有限公司 | Control method and control device for optical fiber drawing speed and optical fiber drawing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11320209A (en) * | 1998-05-15 | 1999-11-24 | Alps Tool:Kk | Centering jig for bar feeder and its method |
| US20020141728A1 (en) * | 2001-03-30 | 2002-10-03 | Crafts Douglas E. | Method for centering a core of a wave guide amplifier |
| CN105271707A (en) * | 2015-11-13 | 2016-01-27 | 成都中住光纤有限公司 | Furnace body structure of optical fiber drawing furnace |
-
2018
- 2018-08-20 CN CN201810948432.3A patent/CN108675629A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11320209A (en) * | 1998-05-15 | 1999-11-24 | Alps Tool:Kk | Centering jig for bar feeder and its method |
| US20020141728A1 (en) * | 2001-03-30 | 2002-10-03 | Crafts Douglas E. | Method for centering a core of a wave guide amplifier |
| CN105271707A (en) * | 2015-11-13 | 2016-01-27 | 成都中住光纤有限公司 | Furnace body structure of optical fiber drawing furnace |
Non-Patent Citations (1)
| Title |
|---|
| 卢嘉锡: "高技术百科辞典", vol. 1, 福建人民出版社, pages: 841 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112897874A (en) * | 2021-05-07 | 2021-06-04 | 中天科技光纤有限公司 | Control method and control device for optical fiber drawing speed and optical fiber drawing system |
| CN112897874B (en) * | 2021-05-07 | 2021-11-16 | 中天科技光纤有限公司 | Control method and control device for optical fiber drawing speed and optical fiber drawing system |
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Application publication date: 20181019 |