CN203689166U - Coating diameter on-line automatic control device during wire drawing process - Google Patents
Coating diameter on-line automatic control device during wire drawing process Download PDFInfo
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- CN203689166U CN203689166U CN201420051458.5U CN201420051458U CN203689166U CN 203689166 U CN203689166 U CN 203689166U CN 201420051458 U CN201420051458 U CN 201420051458U CN 203689166 U CN203689166 U CN 203689166U
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- 239000011248 coating agent Substances 0.000 title claims abstract description 71
- 238000000576 coating method Methods 0.000 title claims abstract description 71
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- 230000008569 process Effects 0.000 title claims abstract description 11
- 238000005491 wire drawing Methods 0.000 title abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims description 10
- 238000012681 fiber drawing Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 abstract description 26
- 239000011247 coating layer Substances 0.000 abstract description 6
- 238000007380 fibre production Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000010422 painting Methods 0.000 description 14
- 101100408455 Arabidopsis thaliana PLC7 gene Proteins 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The utility model relates to a coating diameter on-line automatic control device during a wire drawing process. The automatic control device comprises a wire drawing furnace, a cooling pipe, an inner coating cup, an outer coating cup, a UV lamp, a tensioning wheel and a take-up wheel. The automatic control device is characterized in that, a bare optical diameter gauge is arranged at the outlet of the cooling pipe; a coating layer diameter gauge is arranged between the UV lamp and the tensioning wheel; the coating layer diameter gauge is connected with a PLC signal input end; the PLC signal input end is connected with the cooling pipe, the inner coating cup and the outer coating cup respectively. On-line feedback of inner coating layer diameters and outer coating layer diameters to the PLC is carried out through the diameter gauge, on-line adjustment and control are carried out by the PLC, the stability of optical fiber coating diameters is raised greatly, thus optical fiber inner and outer coating layer diameters fluctuate in a narrow scope, and the coating diameter on-line automatic control device has important meanings for raising the optical fiber production efficiency and obtaining high-quality optical fibers.
Description
Technical field
The utility model relates to optic fibre manufacturing technology field, is specifically related to apply in a kind of drawing process the on-line automatic control device of diameter.
Background technology
Along with the construction of " broadband China " implementation and 4G network is carried out, market will significantly increase the demand of optical fiber, and optical fiber industry will take a turn for the better by basic side gradually, and form explosive growth.In the face of the powerful market demand, competitively improvement of production process of Ge great optical fiber producer, enhances productivity, to increase market share.The common method of enhancing productivity has two kinds: 1. use large-sized preform to carry out wire drawing; 2. improve drawing speed.But in the time improving drawing speed, the series of process problems such as excessive, cooling deficiency, inherent vice increase usually can fluctuate with string diameter.The high quality optical fiber that like this, how obtains stable performance under higher drawing speed just become fiber manufacturing in a very important major issue.
High-quality optical fiber requires have high precision and more stable external diameter, high physical strength, low decay, defect that also will be as far as possible few.Coated technique has decisive influence for the precision and stability of optical fiber external diameter, and meanwhile, overlay diameter also has very large impact to the various performances of optical fiber, as microbending loss performance, environmental testing performance, peeling force performance and colorability etc.Particularly, for some smaller diameter fiber, as the G.657 bending non-sensitive optical fiber of 200um, thereby in the process of preparation high quality optical fiber need inside and outside coating diameter to carry out very strict control.
Multiple technological parameters of drawing optical fibers can exert an influence to the coating diameter of optical fiber, as drawing speed, and the He airshed of cooling tube, pressure and the coating cup temperature etc. of painting dressing.Be mostly to adopt single technological parameter to adjust to the adjustment of fiber coating layer diameter at present, and mostly adopt manual mode.This single parameter or the mode of manually adjusting can produce a large amount of technique and Cost Problems conventionally: as excessive in overlay diameter fluctuation in drawing process, He gas use amount is excessive etc.
Utility model content
For the deficiency existing in prior art, the utility model provide a kind of can on-line automatic adjustment and control, coating stablize, fluctuate in the drawing process little, production efficiency is high, optical fiber quality is good and apply the on-line automatic control device of diameter.
To achieve these goals, the utility model is to realize by the following technical solutions:
In a kind of drawing process, apply the on-line automatic control device of diameter, comprise successively fiber drawing furnace, cooling tube, interior coating cup, outer coating cup, UV lamp and stretching pulley, take-up reel, cooling tube outlet described in it arranges bare fibre caliper, overlay diameter tester is set between described UV lamp and stretching pulley, described overlay diameter tester is connected with PLC signal input part, and PLC signal output part is connected with cooling tube, interior coating cup, outer coating cup respectively.
Beneficial effect:
The utility model by caliper online feedback internal coating diameter and external coating diameter to PLC, by PLC according to coating cup temperature, interior painting pressure, He flow or outer coating cup temperature, outer painting pressure, outer coating material temperature degree in internal coating diameter, external coating diameter control, reach on-line control and control, this method significantly improves the stability of fibre coating diameter, optical fiber ectonexine coating diameter is fluctuateed in narrower scope, have great importance for improving the production efficiency of optical fiber and obtaining high quality optical fiber.
Brief description of the drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structural representation of the utility model device.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
Under drawing speed with 2000m/min, producing G.652 optical fiber is example.In order to produce qualified optical fiber, (internal coating diameter is in the scope of 190 ± 10 μ m, external coating diameter is in the scope of 245 ± 10 μ m), conventionally be 6bar by being coated with pressure initial value in setting, interior coating cup initial value is 50 DEG C, He flow initial value is 6L/min, outer painting pressure initial value is 6.5bar, outer coating cup temperature initial value is 52 DEG C, coating temperature initial value is 47.5 DEG C, but the inside and outside coating diameter of optical fiber still can produce fluctuation, the scope of its fluctuation is respectively: 184～197 μ m, 238～253 μ m.
With reference to Fig. 1, will this utility model scheme be described with concrete example below:
Device of the present utility model comprises fiber drawing furnace 2, cooling tube 3, interior coating cup 5, outer coating cup 6, UV lamp 7 and stretching pulley 9, take-up reel 11 successively, cooling tube 3 outlets arrange bare fibre caliper 4, overlay diameter tester 8 is set between UV lamp 7 and stretching pulley 9, described overlay diameter tester 8 is connected with PLC10 signal input part, and PLC10 signal output part is connected with cooling tube 3, interior coating cup 5, outer coating cup 6 respectively.
Its drawing process is: prefabricated rods 1 is under 2000 DEG C of high temperature actions of fiber drawing furnace 2, melt to free fall state, by the effect of tractive force, be pumped into bare fibre, bare fibre is after cooling tube 3 coolings, the coating of coated system, UV lamp 7 solidifies, and air is cooling, then under the effect of stretching pulley 9, be wrapped on take-up reel 11, complete wire drawing.
Embodiment 1
The internal coating diameter recording when overlay diameter caliper 8 is 185.5 μ m, and coating cup temperature T 1 in PLC10 regulates, increases gradually with the step-length of 1 DEG C, and step-length of every increase need wait 2min after temperature stabilization, then increases T1.Along with the increase of interior coating cup temperature, it is large that internal coating diameter also becomes gradually.In the time that T1 is increased to 60 DEG C, reach higher limit, now internal coating diameter is 186.3 μ m, stops increasing, and T1 maintains 60 DEG C.If continue to increase and will cause the coating coating effect that wields influence in a large number.Then, in improving with 0.2bar step-length, be coated with pressure P 1, step-length of every increase need wait 30s after pressure stability, increase again P1, in the time that P1 brings up to 8bar, reach interior painting upper pressure limit, stop increasing interior painting pressure, will overflow mould if continue to increase coating, now the interior painting diameter of optical fiber is 188.4 μ m, does not reach yet desired value.Step-length with 0.1L/min reduces He airshed, and step-length of every increase need wait 1min after L is stable, then increases, in the time that He airshed L is increased to 7.5L/min, and the desired value 190 μ m of internal coating diameter.
Embodiment 2
The internal coating diameter recording when overlay diameter caliper 8 is 196.2 μ m, and PLC10 regulates cooling tube He airshed L, reduces gradually He airshed with the step-length of 0.1L/min, often reduces a step-length and need wait 1min after L is stable, then reduce.Along with the minimizing of L, internal coating diameter also reduces gradually.In the time that L reduces to 0, now internal coating diameter is 192.7 μ m, stops reducing, and L maintains 0, and reduce interior painting pressure P 1 with 0.2bar step-length, often reduce a step-length and need wait 30s after P1 is stable, then reduce, in the time that interior painting pressure is reduced to 4bar, reach lower limit, stop reducing interior painting pressure, now the internal coating diameter of optical fiber is 190.8 μ m, does not reach yet desired value.Now, coating cup temperature T 1 in reducing with the step-length of 1 DEG C, often reduces the 2min such as a step-length after T1 is stable, then reduces, and in the time that T1 is reduced to 48 DEG C, internal coating diameter reaches desired value 190 μ m.
Embodiment 3
When the external coating diameter recording when overlay diameter caliper 8 is 239.6 μ m, PLC10 controls, and increases gradually outer coating cup temperature T 2 with the step-length of 1 DEG C, and step-length of every increase need wait 2min after T2 temperature, then increases.With T2 rising gradually, external coating diameter increases gradually; In the time that T2 reaches 60 DEG C, now external coating diameter is 240.3 μ m, does not reach yet desired value, stops increasing T2, and setting T2 is 60 DEG C, and improves the outer pressure P 2 that is coated with 0.2bar step-length, and step-length of every raising need wait 30s after outer painting pressure stability, then improves; In the time that P2 reaches 8bar, now external coating diameter is 243.5 μ m, does not reach yet desired value, and setting P2 is 8bar, and increases gradually outer coating material temperature degree T3 with the step-length of 0.5 DEG C, and step-length of every increase need wait 1min after T3 is stable, then increases.In the time that T3 increases to 58.5 DEG C, interior painting diameter reaches desired value 245 μ m.
Embodiment 4
When the external coating diameter recording when caliper 8 is 251.3 μ m, PLC10 controls, and reduces gradually outer coating cup temperature T 2 with the step-length of 1 DEG C, and step-length of every increase need wait 2min after T2 is stable, then reduces.With reducing of T2, external coating diameter also reduces gradually; In the time that T2 reaches 40 DEG C, now external coating diameter is 250.4 μ m, and external coating diameter does not reach desired value yet, and setting T2 is 40 DEG C, and reduces outer painting pressure P 2 with 0.2bar step-length, need wait 30s after P2 is stable, then reduce while often reducing a step-length; In the time that outer painting pressure P 2 is reduced to lower limit 4bar, now external coating diameter is 247.6 μ m.External coating diameter does not reach desired value yet, and setting P2 is 5bar, and reduces gradually outer coating material temperature degree T3 with the step-length of 0.5 DEG C, often reduces a step-length and need wait 1min after T3 is stable, then reduce.In the time that T3 increases to 45.5 DEG C, external coating diameter reaches desired value 245 μ m.
Find by a large amount of case studies, use the utility model the inside and outside coating diameter of optical fiber G.652 can be controlled at respectively in the scope of 190 ± 0.5 μ m and 245 ± 1 μ m, more much lower than present GB requirement far away, go out high quality optical fiber for high-speed production significant.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. in a drawing process, apply the on-line automatic control device of diameter, comprise successively fiber drawing furnace, cooling tube, interior coating cup, outer coating cup, UV lamp and stretching pulley and take-up reel, it is characterized in that, described cooling tube outlet arranges bare fibre caliper, overlay diameter caliper is set between described UV lamp and stretching pulley, described overlay diameter caliper is connected with PLC signal input part, and PLC signal output part is connected with cooling tube, interior coating cup, outer coating cup respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051458.5U CN203689166U (en) | 2014-01-27 | 2014-01-27 | Coating diameter on-line automatic control device during wire drawing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051458.5U CN203689166U (en) | 2014-01-27 | 2014-01-27 | Coating diameter on-line automatic control device during wire drawing process |
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| CN203689166U true CN203689166U (en) | 2014-07-02 |
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| CN201420051458.5U Expired - Fee Related CN203689166U (en) | 2014-01-27 | 2014-01-27 | Coating diameter on-line automatic control device during wire drawing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809618A (en) * | 2014-01-27 | 2014-05-21 | 江苏通鼎光棒技术有限公司 | Automatic online control method and device for coating diameters in wiredrawing process |
| CN114988693A (en) * | 2022-08-01 | 2022-09-02 | 武汉理工大学 | Optical fiber drawing device |
-
2014
- 2014-01-27 CN CN201420051458.5U patent/CN203689166U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809618A (en) * | 2014-01-27 | 2014-05-21 | 江苏通鼎光棒技术有限公司 | Automatic online control method and device for coating diameters in wiredrawing process |
| CN103809618B (en) * | 2014-01-27 | 2016-12-07 | 江苏通鼎光棒技术有限公司 | A kind of drawing process applies method and the device thereof of the on-line automatic control of diameter |
| CN114988693A (en) * | 2022-08-01 | 2022-09-02 | 武汉理工大学 | Optical fiber drawing device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU TONGDING OPTICAL WAND CO., LTD. Free format text: FORMER NAME: JIANGSU TONGDING OPTICAL WAND TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 215233 Wujiang economic and Technological Development Zone, Suzhou, Jiangsu Province Patentee after: JIANGSU TONGDING OPTICAL WAND Co.,Ltd. Address before: 215233 Wujiang economic and Technological Development Zone, Suzhou, Jiangsu Province Patentee before: JIANGSU TONGDING LIGHT WAND TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220812 Address after: 215233 Xiaoping Avenue, eight Town, Zhen Ze town, Wujiang District, Suzhou, Jiangsu 8 Patentee after: TONGDING INTERCONNECTION INFORMATION Co.,Ltd. Patentee after: JIANGSU TONGDING OPTICAL WAND Co.,Ltd. Address before: Tongjin Avenue, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU TONGDING OPTICAL WAND Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |