CN105036541B - A kind of wire-drawer-tower preform automatic centring device and method - Google Patents
A kind of wire-drawer-tower preform automatic centring device and method Download PDFInfo
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- CN105036541B CN105036541B CN201510536441.8A CN201510536441A CN105036541B CN 105036541 B CN105036541 B CN 105036541B CN 201510536441 A CN201510536441 A CN 201510536441A CN 105036541 B CN105036541 B CN 105036541B
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- preform
- prefabricated rods
- fire door
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- measurement instrument
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- 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
Abstract
The present invention relates to a kind of wire-drawer-tower preform automatic centring device and method for drawing optical fibers, device includes vertical feed platform and two-dimensional adjustment device, connect prefabricated rods collet under two-dimensional adjustment device, correspondence installs heating furnace and holding furnace below prefabricated rods collet, bare-fiber diameter measuring instrument and traction wheel take-up are installed on below holding furnace fire door, it is characterized in that the two-dimensional adjustment device is automatic two-dimensional adjustment device, bare fibre position measurement instrument is set above traction wheel take-up, prefabricated rods fire door position measurement instrument is installed above heating furnace fire door or/and position measurement instrument in prefabricated rods stove is installed in heating-furnace, the automatic two-dimensional adjustment device is connected by processing controller with bare fibre position measurement instrument, and it is connected with position measurement instrument in prefabricated rods fire door position measurement instrument or/and prefabricated rods stove.Energy online automatic detection of the invention simultaneously adjusts the centering orientation of preform and bare fibre, avoids optical fiber sideslip, is effectively improved wire drawing quality.
Description
Technical field
The present invention relates to a kind of wire-drawer-tower preform automatic centring device and method for drawing optical fibers, belong to light
Fine manufacturing equipment technical field.
Background technology
Optical fiber is to be formed by preform in fiber drawing tower heating furnace by heating fusing wire drawing to it.Wire drawing
Cheng Zhong, preform need to continue to furnace charge.On the one hand it is to increase in order to reduce optical fiber fabrication cost in fiber manufacturing
Add preform size, the rod frequency is changed in reduction, improves production efficiency of equipment;On the other hand it is to improve drawing speed.Current
Development trend is that preform size is increasing, and drawing speed is getting faster.
Existing fiber drawing tower includes vertical feed platform and prefabricated rods collet into bar device, and prefabricated rods collet passes through two dimension
Regulating device is connected with Chui Zhi Jin Give platforms, in use, vertical feed platform can carry out automatically the i.e. Z-direction of vertical direction into
Give, two-dimensional adjustment device is hand gear, usually by the detection to bare fibre come online X, Y for manually adjusting preform
The position in direction, is located at the centre of heating furnace.Since present preform diameter is increasing, length is increasingly
Long, optical fiber prefabricating rod geometry and straightness error become larger relatively, and on-line correction predispersed fiber is generally required in drawing process
Rod alignment degree processed, so not only operates with very inconvenient, but also also is difficult to harmonize.Thus preform is caused in heating furnace
In misalign, heating it is uneven, so as to be difficult to the processing request for meeting high-speed wire-drawing, and seriously affect the processing quality of optical fiber.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of wire-drawer-tower in view of the deficiency of the prior art
Preform automatic centring device and method, its energy online automatic detection simultaneously adjust the centering orientation of preform.
The present invention is to solve the problems, such as that used technical solution set forth above is:
Include vertical feed platform, two-dimensional adjustment device is installed on vertical feed platform, connects prefabricated rods under two-dimensional adjustment device
Collet, prefabricated rods collet lower section correspondence install heating furnace and holding furnace, bare-fiber diameter survey are installed on below holding furnace fire door
Measure instrument and traction wheel take-up, it is characterised in that the two-dimensional adjustment device is automatic two-dimensional adjustment device, is received in traction wheel
Bare fibre position measurement instrument is set above line apparatus, installed above heating furnace fire door prefabricated rods fire door position measurement instrument or/and
Install position measurement instrument in prefabricated rods stove in heating-furnace, the automatic two-dimensional adjustment device by processing controller with it is naked
Fiber position measuring instrument is connected, and is connected with position measurement instrument in prefabricated rods fire door position measurement instrument or/and prefabricated rods stove.
By such scheme, the prefabricated rods collet upper end passes through universal joint or flexible joint and automatic two-dimensional adjustment device phase
Connection.
By such scheme, the universal joint is hinged for bulb.
By such scheme, the universal joint is connected by two two-dimentional 90 ° of articulated joints intersections to be formed.
By such scheme, bare fibre tensile measurer is configured with above traction wheel take-up.
The technical solution of preform automatic centering method of the present invention is:
Using centralising device of the present invention, preform upper end is clamped in prefabricated rods collet,
After preform clamping, automatic two-dimensional adjustment device carries out just centering, the coordinate points D of centering(X3,Y3)
For 0,
Then vertical feed platform moves down, and preform lower end is entered heating furnace fire door, passes through prefabricated rods stove
Mouth position measurement instrument measures preform in the position of fire door, according to the coordinate values C of measurement(X2,
Y2)Fire door centering adjustment is carried out to preform by automatic two-dimensional adjustment device,
Preform enters heating position in stove, opens heating furnace and it is heated, preform lower end is melt into cone,
Tapered end pulls out heating furnace and holding furnace around upper traction wheel take-up into fibre, by fibre, starts continuous fiber drawing process,
After wire drawing starts, vertical feed platform is slowly fed, and bare fibre position measurement instrument is to position of the bare fibre with respect to fire door
It is interrupted or continuous centering detects, obtains bare fibre coordinate values A(X0,Y0), while prefabricated rods fire door position measurement instrument
The preform for entering fire door is interrupted in the position of fire door or continuously to middle detection,
By the bare fibre position coordinates numerical value A of measurement(X0,Y0)With preform position coordinates numerical value C(X2,Y2)Pass
Send to processing controller and be compared, calculate and handle, handle backward automatic two-dimensional adjustment device and send adjust instruction, to optical fiber
Prefabricated rods carry out the two-dimension adjustment in horizontal plane, are subject to and bare fibre is adjusted in the range of the error of centralization of defined.
By such scheme, the absolute value of the bare fibre error of centralization scope is 0 ~ 0.75mm.
By such scheme, during wire drawing, position in the stove of preform is surveyed with position measurement instrument in prefabricated rods stove
Amount, obtains position coordinates numerical value B in the stove of preform(X1,Y1), and by position coordinates numerical value B in stove(X1,Y1)Transmission
To processing controller, with bare fibre position coordinates numerical value A(X0,Y0)With preform position coordinate value C(X2,Y2)Together into
Row compares, calculates and handles.
By such scheme, the comparison, calculating and processing are using bare fibre position coordinates numerical value A as target
And benchmark, it is located in error range, by adjusting two-dimensional adjustment device coordinate points D, is sat in bare fibre position
Numerical value A absolute values are marked close on the premise of 0 so that in the stove of preform position coordinates numerical value C or/and preform
The absolute value smaller of position coordinates numerical value B.
By such scheme, by bare fibre position coordinates numerical value A, preform position coordinates numerical value C or/and optical fiber prefabricating
Tetra- groups of position coordinates numerical value B, two-dimensional adjustment device coordinate points D coordinate values in the stove of rod, charging coefficient a is obtained with least square method
And b, reuse a and b and be multiplied by charging step-length, driving two-dimensional adjustment device XY directions servo-drive system, you can control prefabricated rods position,
So that bare fibre position coordinates numerical value A(X0,Y0)Absolute value it is minimum, so as to obtain the position of optical fiber stabilization.
The beneficial effects of the present invention are:1st, online automatic detection and the centering side of preform and bare fibre can be adjusted
, optical fiber sideslip can be avoided in drawing process, avoids influencing optical fiber quality because sideslip produces scraping, is there is wire drawing quality
The raising of effect;2nd, preform can be made to try one's best and be in the middle part of heating furnace chamber, make its thermally equivalent, avoid prefabricated rods conehead from drawing
Partially, prefabricated rods are avoided to touch fiber drawing furnace fire door air seal set firmly during adjusting, so as to further improve wire drawing quality.
Brief description of the drawings
Fig. 1 is the structure diagram of centralising device one embodiment of the present invention.
Fig. 2 is the block diagram of centering process of the present invention and method.
Embodiment
Below in conjunction with drawings and examples, the present invention is described further.
Include vertical feed platform, two-dimensional adjustment device 1 is installed on vertical feed platform, connects prefabricated rods under two-dimensional adjustment device
Collet 4, the two-dimensional adjustment device are automatic two-dimensional adjustment device, and the prefabricated rods collet upper end passes through universal joint or flexibility
Section is connected with automatic two-dimensional adjustment device;Correspondence installs heating furnace 3 and holding furnace 12 below prefabricated rods collet, in holding furnace
Lower section corresponds to plug for outlet and is provided with traction wheel take-up, and traction wheel take-up includes auxiliary traction wheel 9, notes traction wheel 10
With take-up 11, the optical fiber natural cooling area 6 above auxiliary traction wheel sets bare-fiber diameter measuring instrument 7, bare fibre
Power measurement 8 and bare fibre position measurement instrument 5.Prefabricated rods fire door position measurement instrument 2 is installed above heating furnace fire door, in heating furnace
Position measurement instrument 13 in prefabricated rods stove is installed in stove, the automatic two-dimensional adjustment device passes through processing controller and bare fibre position
Put measuring instrument, prefabricated rods fire door position measurement instrument is connected with position measurement instrument in prefabricated rods stove.
The process of wire drawing centering of the present invention is:Using centralising device of the present invention, by preform upper end clamping
After prefabricated rods collet, preform clamping, automatic two-dimensional adjustment device carries out just centering, the coordinate points D of centering
(X3,Y3)For 0, then vertical feed platform moves down, and preform lower end is entered heating furnace fire door, passes through prefabricated rods fire door position
Put measuring instrument to measure preform in the position of fire door, according to the coordinate values C of measurement(X2,Y2)Pass through automatic two
Tie up regulating device and fire door centering adjustment is carried out to preform, preform enters heating position in stove, opens heating furnace pair
It is heated, and preform lower end is melt into cone, and fibre is pulled out heating furnace and holding furnace around upper traction wheel take-up by tapered end into fibre
Device, starts continuous fiber drawing process, and after wire drawing starts, vertical feed platform is slowly fed, bare fibre position measurement instrument pair
Bare fibre is interrupted with respect to the position of fire door or continuous centering detection, obtains bare fibre coordinate values A(X0,Y0), at the same time
Prefabricated rods fire door position measurement instrument is interrupted or continuously to middle inspection the preform for entering fire door in the position of fire door
Survey, position measurement instrument is interrupted to entering position of the preform in stove in stove or continuously in prefabricated rods stove
Detection, by the bare fibre position coordinates numerical value A of measurement(X0,Y0)With preform fire door position coordinates numerical value C(X2,Y2)And
Position coordinates numerical value B in the stove of preform(X1,Y1)Be sent to processing controller be compared by setting value, calculate and
Processing, handles backward automatic two-dimensional adjustment device and sends adjust instruction, the two-dimension adjustment in horizontal plane is carried out to preform,
Be subject to and bare fibre be adjusted in the range of the error of centralization of defined, the absolute value of bare fibre error of centralization scope for 0 ~
0.75mm, while make it that position coordinates numerical value B's in the stove of preform position coordinates numerical value C or/and preform is exhausted
To being worth smaller.
Claims (8)
1. a kind of wire-drawer-tower preform automatic centring device, includes vertical feed platform, two dimension is installed on vertical feed platform
Regulating device, prefabricated rods collet is connected under two-dimensional adjustment device, and correspondence installs heating furnace and holding furnace below prefabricated rods collet, is protecting
Bare-fiber diameter measuring instrument and traction wheel take-up are installed on below warm stove fire door, it is characterised in that the two-dimensional adjustment device
For automatic two-dimensional adjustment device, bare fibre position measurement instrument is set above traction wheel take-up, above heating furnace fire door
Install prefabricated rods fire door position measurement instrument or/and position measurement instrument in prefabricated rods stove is installed in heating-furnace, described is automatic
Two-dimensional adjustment device is connected by processing controller with bare fibre position measurement instrument, and with prefabricated rods fire door position measurement instrument or/
It is connected with position measurement instrument in prefabricated rods stove;Bare fibre tensile measurer is configured with above traction wheel take-up.
2. the wire-drawer-tower preform automatic centring device as described in claim 1, it is characterised in that the prefabricated rods folder
Head upper end is connected by universal joint or flexible joint with automatic two-dimensional adjustment device.
3. the wire-drawer-tower preform automatic centring device as described in claim 2, it is characterised in that the universal joint is
Bulb is hinged, or is connected by two two-dimentional 90 ° of articulated joints intersections and formed.
A kind of 4. wire-drawer-tower preform automatic centering method, it is characterised in that
Using any automatic centring device described in claim 1-3, preform upper end is clamped in prefabricated rods collet,
After preform clamping, automatic two-dimensional adjustment device carries out just centering, the coordinate points D of centering(X3,Y3)For 0,
Then vertical feed platform moves down, and preform lower end is entered heating furnace fire door, passes through prefabricated rods fire door position measurement
Instrument measures preform in the position of fire door, according to the coordinate values C of measurement(X2,Y2)Pass through automatic two-dimensional adjustment
Device carries out fire door centering adjustment to preform,
Preform enters heating position in stove, opens heating furnace and it is heated, preform lower end is melt into cone, tapered end
Into fibre, fibre is pulled out into heating furnace and holding furnace around upper traction wheel take-up, starts continuous fiber drawing process,
After wire drawing starts, vertical feed platform is slowly fed, and bare fibre position measurement instrument carries out position of the bare fibre with respect to fire door
Interruption or continuous centering detection, obtain bare fibre coordinate values A(X0,Y0), while prefabricated rods fire door position measurement instrument into
The preform for entering fire door is interrupted in the position of fire door or continuously to middle detection,
By the bare fibre position coordinates numerical value A of measurement(X0,Y0)With preform position coordinates numerical value C(X2,Y2)It is sent to
Processing controller is compared, calculates and handles, and handles backward automatic two-dimensional adjustment device and sends adjust instruction, to optical fiber prefabricating
Rod carries out the two-dimension adjustment in horizontal plane, is subject to and bare fibre is adjusted in the range of the error of centralization of defined.
5. the wire-drawer-tower preform automatic centering method as described in claim 4, it is characterised in that the bare fibre pair
The absolute value of middle error range is 0 ~ 0.75mm.
6. the wire-drawer-tower preform automatic centering method as described in claim 4 or 5, it is characterised in that during wire drawing, with pre-
Position measurement instrument measures position in the stove of preform in rod stove processed, obtains position coordinates in the stove of preform
Numerical value B(X1,Y1), and by position coordinates numerical value B in stove(X1,Y1)Processing controller is sent to, with bare fibre position coordinates number
Value A(X0,Y0)With preform position coordinate value C(X2,Y2)It is compared, calculate and handles together.
7. the wire-drawer-tower preform automatic centering method as described in claim 6, it is characterised in that the comparison, calculate
It is using bare fibre position coordinates numerical value A as target and benchmark with processing, is located in error range, by adjusting two-dimensional adjustment
Device coordinate points D, in bare fibre position coordinates numerical value A absolute values close on the premise of 0 so that preform position coordinates
The absolute value smaller of position coordinates numerical value B in the stove of numerical value C or/and preform.
8. the wire-drawer-tower preform automatic centering method as described in claim 7, it is characterised in that sit bare fibre position
Mark position coordinates numerical value B in the stove of numerical value A, preform position coordinates numerical value C or/and preform, two-dimensional adjustment dress
Tetra- groups of coordinate values of coordinate points D are put, charging coefficient a and b is obtained with least square method, reuses a and b and be multiplied by charging step-length, drive
Two-dimensional adjustment device XY directions servo-drive system, you can control prefabricated rods position so that bare fibre position coordinates numerical value A(X0,Y0)
Absolute value it is minimum, so as to obtain the position of optical fiber stabilization.
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CN106892556A (en) * | 2017-04-28 | 2017-06-27 | 成都中住光纤有限公司 | A kind of on-line control system of drawing optical fibers chuck |
CN107601844A (en) * | 2017-10-16 | 2018-01-19 | 平步青 | A kind of fiber drawing tower with dedusting function based on Internet of Things |
CN109399912B (en) * | 2018-12-20 | 2023-08-29 | 江苏斯德雷特光纤科技有限公司 | Optical fiber drawing tower control system |
CN110274564B (en) * | 2019-07-31 | 2021-10-26 | 江苏南方光纤科技有限公司 | Concentricity calibration method for high-rise equipment |
CN111099821B (en) * | 2019-12-30 | 2023-09-26 | 天津富通光纤技术有限公司 | Optical fiber production Japanese type wire drawing furnace with automatic alarm function |
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 |
CN113860725A (en) * | 2021-10-14 | 2021-12-31 | 中天科技光纤有限公司 | Control system and method for speed-up stage of wire drawing machine and storage medium |
CN114292021A (en) * | 2021-12-30 | 2022-04-08 | 南京春辉科技实业有限公司 | System and method for adjusting preform rod in real time in quartz optical fiber drawing process |
CN114573225A (en) * | 2022-03-16 | 2022-06-03 | 武汉烽火锐拓科技有限公司 | Regulation and control device and method for improving concentricity of core packet of VAD optical fiber preform |
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JP2000335931A (en) * | 1999-05-31 | 2000-12-05 | Fujikura Ltd | Gripping device for processing of optical fiber preform |
CN2569095Y (en) * | 2002-09-17 | 2003-08-27 | 长飞光纤光缆有限公司 | Optical fiber calliper gauge with centring device |
JP2005292668A (en) * | 2004-04-02 | 2005-10-20 | Fuji Photo Film Co Ltd | Manufacturing method of plastic optical fiber |
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