CN102718414B - Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process - Google Patents
Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process Download PDFInfo
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- CN102718414B CN102718414B CN201210200664.3A CN201210200664A CN102718414B CN 102718414 B CN102718414 B CN 102718414B CN 201210200664 A CN201210200664 A CN 201210200664A CN 102718414 B CN102718414 B CN 102718414B
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- optical fiber
- feed pipe
- temperature
- heater
- coating
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- 238000000576 coating method Methods 0.000 title claims abstract description 95
- 239000013307 optical fiber Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005491 wire drawing Methods 0.000 title claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 70
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 8
- 229910001120 nichrome Inorganic materials 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 3
- 230000002463 transducing effect Effects 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 2
- 239000000835 fiber Substances 0.000 description 12
- 239000010410 layer Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012681 fiber drawing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention relates to a method and a device for automatically controlling the temperature of optical fiber coatings in a wiredrawing process. The device comprises an optical fiber coating device, wherein a coating cavity of the optical fiber coating device is communicated with a charging bucket by a charging pipeline. The device is characterized in that the charging pipeline is externally provided with a controllable heater which is used for heating the coatings in the charging pipeline, the charging pipeline is externally provided with a processing control unit which is used for comparing an acquired wiredrawing speed sensing signal and charging pipeline temperature sensing signal with a preset parameter numerical value, so as to control the heating process of the controllable heater, so that the automatic controlling and adjusting process of the temperate of the coatings in the optical fiber coating device can be realized. According to the device and the method, the temperature of the coatings can be automatically changed along with the wiredrawing speed when the optical fiber is wiredrawn, so that the temperature (or the viscosity) of the coatings can be well matched with the wiredrawing speed, and therefore, the quality of a coating layer on the surface of the optical fiber can be guaranteed, and the machining yield of the optical fiber can be improved. The method and the device are simple in structure, and convenient to implement and popularize, so that the automatic level of optical fiber machining equipment can be improved.
Description
Technical field
The present invention relates to one, for wet, to optical fiber coatings, online temperature controlled method and device are carried out to wet (wet-on-wet) coated technique, belong to optical fiber processing technical field.
Background technology
Fiber coating layer is one of two kinds of most important material compositions of composition optical fiber, and its major function comprises carries out mechanical protection to bare fibre, keeps fiber strength, resists environmental attack and maintenance and improves fibre-optical bending performance etc.So the quality of fiber coating quality will directly have influence on the quality and performance of optical fiber.For conventional telecommunications fiber, glass optical fiber surface application has two-layer overlay, the thickness of two-layer overlay and proportional distribution can largely on have influence on the use properties of optical fiber, as peeling force, microbend performance, environmental testing performance etc.Therefore, the thickness of two-layer overlay and ratio need to control in a rational scope.
Wet in optical fiber coatings coating processes have following characteristics to wet fiber coating technique: (1) is due to two-layer coating cavity direct neighbor, so usually adopt same water (or oil) bath cavity to heat coating cup, and can not heat the carrying out of two-layer coating cavity separately.And according to corresponding research, for wet to wet coating process, in drawing process, the differences in viscosity of two coatings should control in certain zone of reasonableness; (2) in drawing process, due to the separately coating of two coatings, and application pattern is different, so the Die orifice diameter of second layer applying coating is general all very large, it is bigger than normal and optical fiber is scrapped that such design easily produces coating diameter at the low-speed stage that wire drawing starts.
Along with the development of optic fibre manufacturing technology, the drawing speed of optical fiber is more and more faster, general more than 1500 ms/min at present.In this case, adopt traditional fixed temperature heating means to be more and more difficult to meet the demand of high-speed wire-drawing to paint, the coating quality of optical fiber is difficult to be guaranteed.Wet application pattern wet coating process being considered to applicable high-speed wire-drawing, but need improve this Processes and apparatus, to obtain good fiber coating quality.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that exists for above-mentioned prior art and provides a kind of drawing process optical fiber coatings temperature automatic control method and device, realize coating material temperature in fiber drawing process automatically to change with drawing speed, thus reach coating material temperature (or viscosity) and the matched well of drawing speed, the quality of optical fiber surface coat is guaranteed.
The technical scheme of optical fiber coatings temperature automatic control method of the present invention is: include optical fiber coating device, optical fiber coating device coating chamber is connected with batch can by feed pipe, it is characterized in that installing controllable heater outside feed pipe, coating in feed pipe is heated, set handling control unit simultaneously, processing and control element (PCE) is by gathering drawing speed transducing signal with feed pipe temperature sensor signal compared with default parameter values, the heat-processed of controllable heater is controlled, thus the automatic control realized the coating material temperature in optical fiber coating device and regulate process.
By such scheme, described processing and control element (PCE) is PLC unit, and PLC unit is provided with drawing speed and feed pipe vs. temperature program, and the heating being realized controllable heater by PLC time variable control is regulated automatically with the change of drawing speed.
By such scheme, the automatic regulation range of described controllable heater to feed pipe temperature is 25 ~ 100 DEG C; Described feed pipe is metallic conduit.
By such scheme, the type of heating of described controllable heater is Electric heating, liquid medium type of heating or gaseous media type of heating.
By such scheme, described optical fiber coating device is provided with one or more coating chamber, and each coating chamber connects feed pipe respectively, at least on a feed pipe, installs controllable heater, heats to the coating at least one feed pipe.
By such scheme, in PLC program, the relation formula of the setting of feed pipe temperature and drawing speed is:
y = a[(x-300)/100]
2+ b(x-300)/100 + c
In formula: y is the feed pipe temperature setting of PLC; X is drawing speed;
A is constant, and scope is 0.1 to 0.6; B is constant, and scope is 0.1 to 4;
C is constant, and scope is 20 to 40.
The technical scheme of optical fiber coatings automatic temperature control of the present invention is: include optical fiber coating device, optical fiber coating device coating chamber is connected with batch can by feed pipe, it is characterized in that installing controllable heater outside feed pipe, PLC unit is set simultaneously, PLC unit input terminus connects respectively with drawing speed sensor and feed pipe temperature sensor, and PLC unit output terminal connects with the temperature-control circuit of controllable heater.
By such scheme, described drawing speed sensor setting is on the traction wheel of wire drawing output terminal; Described feed pipe temperature sensor is arranged on the feed pipe of optical fiber coating device.
By such scheme, described controllable heater is electric heater, and described electric heater is made up of the nichrome wire holding feed pipe.
By such scheme, described controllable heater is liquid or gaseous media well heater, described liquid or gaseous media well heater are made up of the annular-heating groove of coated feed pipe and coupled recirculation heater, fill liquid or gaseous media in annular-heating groove and recirculation heater.
Beneficial effect of the present invention is: 1, realize controllable heater temperature by PLC automatically to regulate with drawing speed, thus realize coating material temperature and automatically regulate with drawing speed, reach the matched well of dope viscosity and drawing speed, the mode of automatic adjusting coating temperature so not only can regulate arbitrarily the viscosity of coating in each coating chamber in fiber drawing process, thus reach thickness proportion and the diameter of each coat of convenient adjustment optical fiber, solve wet to can not the problem of the two-layer overlay thickness of free adjustment and ratio in wet coating process, and can reduce and avoid coating to overflow, coating diameter exceeds standard, apply uneven and coating interface occur that the optical fiber that ripple etc. causes is scrapped.Thus make the quality of optical fiber surface coat be guaranteed and improve, improve the yield rate of optical fiber processing.2, structure is simple, is convenient to implement and promote, and improves the automatization level of optical-fiber processing equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention embodiment.
Fig. 2 is the structural representation of another embodiment of apparatus of the present invention.
Embodiment
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing.
Embodiment 1 as shown in Figure 1, for Electric heating, include optical fiber coating device 4, optical fiber coating device coating chamber is connected with batch can by feed pipe, described optical fiber coating device is provided with, lower two coating chambeies, wherein coating chamber is connected with upper feeding pipeline 5, upper feeding pipeline can be established or not establish controllable heater, lower coating chamber is connected with lower feed pipe 2, the outside surface of lower feed pipe is wound around one or more layers nichrome wire, form controllable heater 6, the temperature of lower feed pipe adopts temperature sensor 3 to measure, the temperature of nichrome wire is regulated by the desired temperature of the PLC unit connected with it simultaneously, its desired temperature sets according to formula 1, the drawing speed transducing signal of PLC unit is gathered by traction wheel.Valve 1 is serially connected with in feed pipe, the discharge port of feed pipe is communicated with optical fiber coating device 4, in drawing process, the nichrome wire 6 that coating in feed pipe is wound its surface heats, due to water back next-door neighbour fiber coating device 4, coating after heating enters optical fiber coating device and only has few temperature loss, so the viscosity being coated with dressing in its coating cup can be regulated by pipe temperature.
Before wire drawing starts, be coated with dressing valve 1 and be in closing condition, because speed is that zero resistance silk does not heat feed pipe; After wire drawing starts, valve is opened automatically, and coating starts flowing, nichrome wire heats gradually according to the setting of PLC, because fibre external diameters under low speed is general all larger, so pipe temperature can not set too high during low speed, otherwise too many fibre external diameters can be caused to exceed standard scrap; When drawing speed raises, in order to mate the viscosity of two-layer painting dressing and increase fibre external diameters, coating pipe material temperature can raise according to the set(ting)value of PLC; When speed reduces, nichrome wire can reduce heating power or not heat, and makes pipe temperature naturally cool to target value; At the end of wire drawing, valve cuts out automatically, and nichrome wire stops heating, and the coating in pipeline naturally cools to normal temperature.Generally, the upper feeding pipeline 5 of the first layer coating does not need to heat.The starting velocity of pipeline heating is generally 300 ~ 400m/min.
Embodiment 2 as shown in Figure 2, liquid or gaseous media type of heating, the difference of it and a upper embodiment is that described controllable heater 6 is liquid or gaseous media well heater, described liquid or gaseous media well heater are made up of the annular-heating groove of coated lower feed pipe 2 and coupled recirculation heater 7, liquid or gaseous media is filled in annular-heating groove and recirculation heater, recirculation heater is by making coating heat up, until the temperature of coating material temperature and liquid or gaseous media is close to liquid or gaseous media heating to feed pipe heating; In the liquid that the temperature sensor of the present embodiment is installed in recirculation heater or gaseous media chamber, using the temperature of liquid or gaseous media as the temperature sensing of feed pipe to PLC unit.Other structure is identical with a upper embodiment.
Claims (7)
1. a drawing process optical fiber coatings temperature automatic control method, include optical fiber coating device, optical fiber coating device coating chamber is connected with batch can by feed pipe, it is characterized in that installing controllable heater outside feed pipe, coating in feed pipe is heated, set handling control unit simultaneously, processing and control element (PCE) is by gathering drawing speed transducing signal with feed pipe temperature sensor signal compared with default parameter values, the heat-processed of controllable heater is controlled, thus the automatic control realized the coating material temperature in optical fiber coating device and regulate process, described processing and control element (PCE) is PLC unit, and PLC unit is provided with drawing speed and feed pipe vs. temperature program, and the heating being realized controllable heater by PLC time variable control is regulated automatically with the change of drawing speed, in PLC program, the relation formula of the setting of feed pipe temperature and drawing speed is:
y = a[(x-300)/100]
2+ b(x-300)/100 + c
In formula: y is the feed pipe temperature setting of PLC; X is drawing speed;
A is constant, and scope is 0.1 to 0.6; B is constant, and scope is 0.1 to 4;
C is constant, and scope is 20 to 40.
2., by drawing process optical fiber coatings temperature automatic control method according to claim 1, it is characterized in that the automatic regulation range of described controllable heater to feed pipe temperature is 25-100 DEG C.
3., by drawing process optical fiber coatings temperature automatic control method according to claim 2, it is characterized in that the type of heating of described controllable heater is Electric heating, liquid medium type of heating or gaseous media type of heating.
4. by drawing process optical fiber coatings temperature automatic control method according to claim 1, it is characterized in that described optical fiber coating device is provided with one or more coating chamber, each coating chamber connects feed pipe respectively, at least on a feed pipe, install controllable heater, the coating at least one feed pipe is heated.
5. one kind implements the claims the drawing process optical fiber coatings automatic temperature control of 1 method, include optical fiber coating device, optical fiber coating device coating chamber is connected with batch can by feed pipe, it is characterized in that installing controllable heater outside feed pipe, PLC unit is set simultaneously, PLC unit input terminus connects respectively with drawing speed sensor and feed pipe temperature sensor, and PLC unit output terminal connects with the temperature-control circuit of controllable heater; Described drawing speed sensor setting is on the traction wheel of wire drawing output terminal; Described feed pipe temperature sensor is arranged on the feed pipe of optical fiber coating device.
6., by drawing process optical fiber coatings automatic temperature control according to claim 5, it is characterized in that described controllable heater is electric heater, described electric heater is made up of the nichrome wire holding feed pipe.
7. by drawing process optical fiber coatings automatic temperature control according to claim 5, it is characterized in that described controllable heater is liquid or gaseous media well heater, described liquid or gaseous media well heater are made up of the annular-heating groove of coated feed pipe and coupled recirculation heater, fill liquid or gaseous media in annular-heating groove and recirculation heater.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200664.3A CN102718414B (en) | 2012-06-18 | 2012-06-18 | Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process |
| AP2015008192A AP2015008192A0 (en) | 2012-06-18 | 2013-06-17 | Method and device for automatically controlling temperature of optical fiber coatings in wiredrawingprocess |
| PCT/CN2013/077327 WO2013189264A1 (en) | 2012-06-18 | 2013-06-17 | Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200664.3A CN102718414B (en) | 2012-06-18 | 2012-06-18 | Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102718414A CN102718414A (en) | 2012-10-10 |
| CN102718414B true CN102718414B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210200664.3A Active CN102718414B (en) | 2012-06-18 | 2012-06-18 | Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102718414B (en) |
| AP (1) | AP2015008192A0 (en) |
| WO (1) | WO2013189264A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759910B (en) * | 2012-06-18 | 2014-08-20 | 长飞光纤光缆股份有限公司 | Automatic temperature control method and device for optical fiber coating |
| CN102718414B (en) * | 2012-06-18 | 2015-03-04 | 长飞光纤光缆股份有限公司 | Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process |
| CN102976609B (en) * | 2012-11-19 | 2015-10-14 | 中天科技光纤有限公司 | A kind of wire drawing cooling tube cooling helium gas flow automatic control device |
| CN104019371B (en) * | 2014-04-10 | 2016-08-17 | 上海金自天正信息技术有限公司 | coating system |
| CN104503517B (en) * | 2014-11-27 | 2017-02-22 | 宝钢工程技术集团有限公司 | Cold-rolling color-coating paint viscosity automatic control system |
| CN108103590A (en) * | 2018-01-26 | 2018-06-01 | 江苏南方光纤科技有限公司 | The offline feeding system of coating |
| CN114028972A (en) * | 2021-11-09 | 2022-02-11 | 中寓(上海)建筑科技有限公司 | Art coating forming robot based on deep learning |
| CN115321840B (en) * | 2022-09-01 | 2023-11-28 | 长飞光纤光缆股份有限公司 | Hot melt adhesive coating system for optical fiber |
| CN116514413B (en) * | 2023-05-22 | 2023-12-05 | 上海昱品通信科技股份有限公司 | Open type wet-to-wet coating device for optical fiber drawing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105620A (en) * | 1984-06-21 | 1987-01-21 | 标准电话和电报公共有限公司 | Optical fiber is made |
| CN101544465A (en) * | 2008-03-24 | 2009-09-30 | 古河电气工业株式会社 | Optical fiber manufacturing methods |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169542A (en) * | 1996-04-23 | 1998-01-07 | 康宁股份有限公司 | Apparatus and method for forming optical fiber coating |
| JP4115200B2 (en) * | 2002-08-05 | 2008-07-09 | 古河電気工業株式会社 | Optical fiber manufacturing method |
| US8613209B2 (en) * | 2004-11-26 | 2013-12-24 | Kobe Steel, Ltd. | Optical fiber drawing apparatus |
| CN102718414B (en) * | 2012-06-18 | 2015-03-04 | 长飞光纤光缆股份有限公司 | Method and device for automatically controlling temperature of optical fiber coatings in wiredrawing process |
-
2012
- 2012-06-18 CN CN201210200664.3A patent/CN102718414B/en active Active
-
2013
- 2013-06-17 AP AP2015008192A patent/AP2015008192A0/en unknown
- 2013-06-17 WO PCT/CN2013/077327 patent/WO2013189264A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105620A (en) * | 1984-06-21 | 1987-01-21 | 标准电话和电报公共有限公司 | Optical fiber is made |
| CN101544465A (en) * | 2008-03-24 | 2009-09-30 | 古河电气工业株式会社 | Optical fiber manufacturing methods |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013189264A1 (en) | 2013-12-27 |
| CN102718414A (en) | 2012-10-10 |
| AP2015008192A0 (en) | 2015-01-31 |
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Address after: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Applicant after: Yangtze Optical Fibre and Cable Co., Ltd Address before: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Applicant before: Changfei Fibre-Optical & Optical Cable Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: CHANGFEI FIBRE-OPTICAL + OPTICAL CABLE CO., LTD. TO: YANGTZE OPTICAL FIBRE AND CABLE CO., LTD |
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Effective date of registration: 20200416 Address after: 311305 No.123 Shidi street, Hengfan industrial district, science and Technology City, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG LIANFEI FIBER OPTICAL CABLE Co.,Ltd. Address before: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee before: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK Ltd. |
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Effective date of registration: 20200604 Address after: Nine Li Town, Mount Emei, Sichuan, Leshan 614222, China Patentee after: Sichuan Lefei Photoelectric Technology Co.,Ltd. Address before: 311305 No.123 Shidi street, Hengfan industrial district, science and Technology City, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG LIANFEI FIBER OPTICAL CABLE Co.,Ltd. |