CN105036541A - Automatic centering device and method for optical fiber preform of fiber-drawing tower - Google Patents
Automatic centering device and method for optical fiber preform of fiber-drawing tower Download PDFInfo
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- CN105036541A CN105036541A CN201510536441.8A CN201510536441A CN105036541A CN 105036541 A CN105036541 A CN 105036541A CN 201510536441 A CN201510536441 A CN 201510536441A CN 105036541 A CN105036541 A CN 105036541A
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- preform
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- fire door
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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
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Abstract
The invention relates to an automatic centering device and method for an optical fiber preform of a fiber-drawing tower used for fiber drawing. The automatic centering device comprises a vertical feeding platform and a two-dimensional regulating device, a preform chuck is connected below the two-dimensional regulating device, a heating furnace and a heat preservation furnace are correspondingly arranged below the preform chuck, and a bare fiber diameter measuring instrument and a traction wheel fiber take-up device are arranged below the furnace mouth of the heat preservation furnace. The automatic centering device is characterized in that the two-dimensional regulating device is automatic, a bare fiber position measuring instrument is arranged above the traction wheel fiber take-up device, a preform furnace mouth position measuring instrument is arranged above the furnace mouth of the heating furnace or/and a preform in-furnace position measuring instrument is arranged in the heating furnace, and the automatic two-dimensional regulating device is connected with the bare fiber position measuring instrument by virtue of a processing controller and is connected with the preform furnace mouth position measuring instrument or/and the preform in-furnace position measuring instrument. The automatic centering device and method for the optical fiber preform of the fiber-drawing tower used for fiber drawing have the advantages that centering direction of the optical fiber preform and a bare fiber can be automatically detected and adjusted, the optical fiber can not deflect, and fiber-drawing quality can be effectively improved.
Description
Technical field
The present invention relates to a kind of wire-drawer-tower preform automatic centring device for drawing optical fibers and method, belong to fiber manufacturing installation technical field.
Background technology
Optical fiber be by preform in fiber drawing tower process furnace by forming its heat fused wire drawing.In drawing process, preform need continue to furnace charge.In order to reduce optical fiber fabrication cost in fiber manufacturing, being increase preform size on the one hand, reducing and change the excellent frequency, improve production efficiency of equipment; Improve drawing speed on the other hand.Current development trend is that preform size is increasing, and drawing speed is more and more faster.
Existing fiber drawing tower enters bar device and comprises vertical feed platform and prefabricated rods chuck, prefabricated rods chuck is connected with Chui Zhi Jin Give platform by two-dimensional adjustment device, during use, vertical feed platform can carry out the feeding of vertical direction and Z-direction automatically, two-dimensional adjustment device is hand gear, usually by coming the online X of manual setting preform, the position of Y-direction to the detection of bare fibre, the centre of process furnace is located at.Because present preform diameter is increasing, length is more and more longer, and optical fiber prefabricating rod geometry is relative with straightness error becomes large, often needs on-line correction preform alignment degree in drawing process, so not only operation uses very inconvenient, and is difficult to harmonize.Cause preform to misalign in process furnace thus, heat uneven, thus be difficult to the processing request meeting high-speed wire-drawing, and have a strong impact on the processing quality of optical fiber.
Summary of the invention
Technical problem to be solved by this invention is that the deficiency existed for above-mentioned prior art provides a kind of wire-drawer-tower preform automatic centring device and method, and its can online automatic detection adjust the centering orientation of preform.
The technical scheme that the problem that the present invention is the above-mentioned proposition of solution adopts is:
Include vertical feed platform, vertical feed platform installs two-dimensional adjustment device, prefabricated rods chuck is connected under two-dimensional adjustment device, below prefabricated rods chuck, correspondence installs process furnace and holding furnace, bare-fiber diameter survey meter and traction wheel take-up is installed on below holding furnace fire door, it is characterized in that described 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 or/and install position measurement instrument in prefabricated rods stove in heating-furnace above process furnace fire door, described automatic two-dimensional adjustment device is connected with bare fibre position measurement instrument by processing controller, and with prefabricated rods fire door position measurement instrument or/and in prefabricated rods stove position measurement instrument be connected.
By such scheme, described prefabricated rods chuck upper end is connected with automatic two-dimensional adjustment device by universal joint or flexible joint.
By such scheme, described universal joint is that bulb is hinged.
By such scheme, described universal joint by two two-dimentional articulated joints intersect 90 ° be connected form.
By such scheme, above traction wheel take-up, be configured with bare fibre tensile measurer.
The technical scheme of preform self-centering method of the present invention is:
Adopt aligning gear of the present invention, preform upper end be clamped in prefabricated rods chuck,
After preform clamping, automatic two-dimensional adjustment device carries out just centering, coordinate point D(X3, the Y3 of centering) be 0,
Then vertical feed platform moves down, and makes preform lower end enter process furnace fire door, by prefabricated rods stove
Mouth position measurement instrument is measured the position of preform at fire door, coordinate values C(X2, Y2 according to measuring) by automatic two-dimensional adjustment device, the adjustment of fire door centering is carried out to preform,
Preform enters in stove and adds thermal potential, opens process furnace and heats it, make preform lower end be melt into cone, and cone end fibroblast, pulls out process furnace and holding furnace around upper traction wheel take-up, start continuous print fiber drawing process by fibre,
After wire drawing starts, the slow feeding of vertical feed platform, the position of bare fibre position measurement instrument to the relative fire door of bare fibre is interrupted or continuous print midline detect, obtain bare fibre coordinate values A(X0, Y0), prefabricated rods fire door position measurement instrument is interrupted or continuous print midline detect in the position of fire door the preform entering fire door simultaneously
By the bare fibre position coordinates numerical value A(X0 measured, and preform position coordinates numerical value C(X2 Y0), Y2) be sent to processing controller to compare, calculate and process, process backward automatic two-dimensional adjustment device and send adjustment instruction, two-dimension adjustment in horizontal plane is carried out to preform, to be as the criterion within the scope of error of centralization bare fibre being adjusted to defined.
By such scheme, the absolute value of described bare fibre error of centralization scope is 0 ~ 0.75mm.
By such scheme, during wire drawing, with position measurement instrument in prefabricated rods stove, position in the stove of preform is measured, position coordinates numerical value B(X1, Y1 in the stove of acquisition preform), and by position coordinates numerical value B(X1 in stove, Y1) processing controller is sent to, with bare fibre position coordinates numerical value A(X0, Y0) and preform position coordinate value C(X2, Y2) compare together, calculate and process.
By such scheme, described comparison, calculating and process are for target with bare fibre position coordinates numerical value A
And benchmark, be located in limit of error, by adjustment two-dimensional adjustment device coordinate point D, at bare fibre position coordinates numerical value A absolute value close under the prerequisite of 0, make preform position coordinates numerical value C or/and preform stove in the absolute value of position coordinates numerical value B less.
By such scheme, by bare fibre position coordinates numerical value A, preform position coordinates numerical value C or/and position coordinates numerical value B, two-dimensional adjustment device coordinate point D tetra-groups of coordinate figures in the stove of preform, charging coefficient a and b is obtained by method of least squares, re-use a and b and be multiplied by charging step-length, drive two-dimensional adjustment device XY direction servosystem, prefabricated rods position can be controlled, make bare fibre position coordinates numerical value A(X0, Y0) absolute value is minimum, thus obtains the stable position of optical fiber.
Beneficial effect of the present invention is: 1, can online automatic detection adjust the centering orientation of preform and bare fibre, can avoid optical fiber sideslip, avoid because sideslip produces scraping and affect optical fiber quality, wire drawing quality is effectively improved in drawing process; 2, preform can be made to be in the middle part of heating furnace chamber as far as possible, make its thermally equivalent, avoid prefabricated rods conehead to draw partially, avoid in prefabricated rods regulate process, firmly touching fiber drawing furnace fire door air seal set, thus improve wire drawing quality further.
Accompanying drawing explanation
Fig. 1 is the structural representation of an aligning gear of the present invention embodiment.
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, vertical feed platform is installed two-dimensional adjustment device 1, connect prefabricated rods chuck 4 under two-dimensional adjustment device, described two-dimensional adjustment device is automatic two-dimensional adjustment device, and described prefabricated rods chuck upper end is connected with automatic two-dimensional adjustment device by universal joint or flexible joint; Below prefabricated rods chuck, correspondence installs process furnace 3 and holding furnace 12, in the below of holding furnace, corresponding plug for outlet is provided with traction wheel take-up, traction wheel take-up comprises auxiliary traction wheel 9, note traction wheel 10 and take-up 11, the optical fiber naturally cooling district 6 above auxiliary traction wheel arranges bare-fiber diameter survey meter 7, bare fibre tonometry 8 and bare fibre position measurement instrument 5.Prefabricated rods fire door position measurement instrument 2 is installed above process furnace fire door, in heating-furnace, install position measurement instrument 13 in prefabricated rods stove, described automatic two-dimensional adjustment device is connected with position measurement instrument in prefabricated rods stove with bare fibre position measurement instrument, prefabricated rods fire door position measurement instrument by processing controller.
The process of wire drawing centering of the present invention is: adopt aligning gear of the present invention, preform upper end is clamped in prefabricated rods chuck, after preform clamping, automatic two-dimensional adjustment device carries out just centering, the coordinate point D(X3 of centering, Y3) be 0, then vertical feed platform moves down, preform lower end is made to enter process furnace fire door, by prefabricated rods fire door position measurement instrument, the position of preform at fire door is measured, according to the coordinate values C(X2 measured, Y2) by automatic two-dimensional adjustment device, the adjustment of fire door centering is carried out to preform, preform enters in stove and adds thermal potential, open process furnace to heat it, preform lower end is made to be melt into cone, cone end fibroblast, fibre is pulled out process furnace and holding furnace around upper traction wheel take-up, start continuous print fiber drawing process, after wire drawing starts, the slow feeding of vertical feed platform, the position of bare fibre position measurement instrument to the relative fire door of bare fibre is interrupted or continuous print midline detect, obtain bare fibre coordinate values A(X0, Y0), prefabricated rods fire door position measurement instrument is interrupted or continuous print midline detect in the position of fire door the preform entering fire door simultaneously, in prefabricated rods stove, position measurement instrument is interrupted or continuous print midline detect the position of the preform entered in stove in stove, by the bare fibre position coordinates numerical value A(X0 measured, and preform fire door position coordinates numerical value C(X2 Y0), Y2) position coordinates numerical value B(X1 and in the stove of preform, Y1) be sent to processing controller to be compared by set(ting)value, calculate and process, process backward automatic two-dimensional adjustment device and send adjustment instruction, two-dimension adjustment in horizontal plane is carried out to preform, to be as the criterion within the scope of error of centralization bare fibre being adjusted to defined, the absolute value of bare fibre error of centralization scope is 0 ~ 0.75mm, make preform position coordinates numerical value C simultaneously or/and preform stove in the absolute value of position coordinates numerical value B less.
Claims (9)
1. a wire-drawer-tower preform automatic centring device, include vertical feed platform, vertical feed platform installs two-dimensional adjustment device, prefabricated rods chuck is connected under two-dimensional adjustment device, below prefabricated rods chuck, correspondence installs process furnace and holding furnace, bare-fiber diameter survey meter and traction wheel take-up is installed on below holding furnace fire door, it is characterized in that described 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 or/and install position measurement instrument in prefabricated rods stove in heating-furnace above process furnace fire door, described automatic two-dimensional adjustment device is connected with bare fibre position measurement instrument by processing controller, and with prefabricated rods fire door position measurement instrument or/and in prefabricated rods stove position measurement instrument be connected.
2., by wire-drawer-tower preform automatic centring device according to claim 1, it is characterized in that described prefabricated rods chuck upper end is connected with automatic two-dimensional adjustment device by universal joint or flexible joint.
3., by wire-drawer-tower preform automatic centring device according to claim 2, it is characterized in that described universal joint is that bulb is hinged, or by two two-dimentional articulated joints intersect 90 ° be connected and form.
4., by the wire-drawer-tower preform automatic centring device described in claim 1 or 2, it is characterized in that being configured with bare fibre tensile measurer above traction wheel take-up.
5. a wire-drawer-tower preform self-centering method, is characterized in that
Adopt the arbitrary automatic centring device described in claim 1-4, preform upper end be clamped in prefabricated rods chuck,
After preform clamping, automatic two-dimensional adjustment device carries out just centering, coordinate point D(X3, the Y3 of centering) be 0,
Then vertical feed platform moves down, and makes preform lower end enter process furnace fire door, by prefabricated rods fire door position measurement instrument
The position of preform at fire door is measured, coordinate values C(X2, Y2 according to measuring) by automatic two-dimensional adjustment device, the adjustment of fire door centering is carried out to preform,
Preform enters in stove and adds thermal potential, opens process furnace and heats it, make preform lower end be melt into cone, and cone end fibroblast, pulls out process furnace and holding furnace around upper traction wheel take-up, start continuous print fiber drawing process by fibre,
After wire drawing starts, the slow feeding of vertical feed platform, between the position of bare fibre position measurement instrument to the relative fire door of bare fibre is carried out
Break or continuous print midline detect, obtain bare fibre coordinate values A(X0, Y0), prefabricated rods fire door position measurement instrument is interrupted or continuous print midline detect in the position of fire door the preform entering fire door simultaneously,
By the bare fibre position coordinates numerical value A(X0 measured, and preform position coordinates numerical value C(X2 Y0), Y2) be sent to processing controller to compare, calculate and process, process backward automatic two-dimensional adjustment device and send adjustment instruction, two-dimension adjustment in horizontal plane is carried out to preform, to be as the criterion within the scope of error of centralization bare fibre being adjusted to defined.
6., by wire-drawer-tower preform self-centering method according to claim 5, it is characterized in that the absolute value of described bare fibre error of centralization scope is 0 ~ 0.75mm.
7. by the wire-drawer-tower preform self-centering method described in claim 5 or 6, when it is characterized in that wire drawing, with position measurement instrument in prefabricated rods stove, position in the stove of preform is measured, position coordinates numerical value B(X1, Y1 in the stove of acquisition preform), and by position coordinates numerical value B(X1 in stove, Y1) processing controller is sent to, with bare fibre position coordinates numerical value A(X0, Y0) and preform position coordinate value C(X2, Y2) compare together, calculate and process.
8., by wire-drawer-tower preform self-centering method according to claim 7, it is characterized in that described comparison, calculating
For target and benchmark with bare fibre position coordinates numerical value A with process, be located in limit of error, by adjustment two-dimensional adjustment device coordinate point D, at bare fibre position coordinates numerical value A absolute value close under the prerequisite of 0, make preform position coordinates numerical value C or/and preform stove in the absolute value of position coordinates numerical value B less.
9. by wire-drawer-tower preform self-centering method according to claim 8, it is characterized in that bare fibre position coordinates numerical value A, preform position coordinates numerical value C or/and position coordinates numerical value B, two-dimensional adjustment device coordinate point D tetra-groups of coordinate figures in the stove of preform, charging coefficient a and b is obtained by method of least squares, re-use a and b and be multiplied by charging step-length, drive two-dimensional adjustment device XY direction servosystem, prefabricated rods position can be controlled, make bare fibre position coordinates numerical value A(X0, Y0) absolute value is minimum, thus obtains the stable position of optical fiber.
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| CN201510536441.8A CN105036541B (en) | 2015-08-28 | 2015-08-28 | A kind of wire-drawer-tower preform automatic centring device and method |
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| CN201510536441.8A CN105036541B (en) | 2015-08-28 | 2015-08-28 | A kind of wire-drawer-tower preform automatic centring device and method |
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| CN105036541B CN105036541B (en) | 2018-05-01 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109399912A (en) * | 2018-12-20 | 2019-03-01 | 江苏斯德雷特通光光纤有限公司 | A kind of fiber drawing tower control system |
| CN110274564A (en) * | 2019-07-31 | 2019-09-24 | 江苏南方光纤科技有限公司 | A kind of concentricity calibrating method of high-level device |
| CN111099821A (en) * | 2019-12-30 | 2020-05-05 | 天津富通光纤技术有限公司 | Optical fiber production Japanese wire drawing furnace with automatic alarm function |
| 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 |
| 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 |
| CN115838243A (en) * | 2022-11-29 | 2023-03-24 | 江苏亨通光纤科技有限公司 | Optical fiber drawing centering device and optical fiber manufacturing automatic centering method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109399912A (en) * | 2018-12-20 | 2019-03-01 | 江苏斯德雷特通光光纤有限公司 | A kind of fiber drawing tower control system |
| CN110274564A (en) * | 2019-07-31 | 2019-09-24 | 江苏南方光纤科技有限公司 | A kind of concentricity calibrating method of high-level device |
| CN111099821A (en) * | 2019-12-30 | 2020-05-05 | 天津富通光纤技术有限公司 | Optical fiber production Japanese wire drawing furnace with automatic alarm function |
| 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 |
| 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 |
| 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 |
| CN115838243A (en) * | 2022-11-29 | 2023-03-24 | 江苏亨通光纤科技有限公司 | Optical fiber drawing centering device and optical fiber manufacturing automatic centering method |
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