CN104071991A - Coating device of reducing bubbles in optical fiber coating - Google Patents
Coating device of reducing bubbles in optical fiber coating Download PDFInfo
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- CN104071991A CN104071991A CN201410341817.5A CN201410341817A CN104071991A CN 104071991 A CN104071991 A CN 104071991A CN 201410341817 A CN201410341817 A CN 201410341817A CN 104071991 A CN104071991 A CN 104071991A
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Abstract
The invention discloses a coating device of reducing bubbles in optical fiber coating. The coating device of reducing bubbles in the optical fiber coating comprises a main tank, an auxiliary tank and a gas source; the coating device of reducing bubbles in the optical fiber coating is characterized in that the main tank is communicated with the auxiliary tank through a connecting pipe which goes deep into the tank mouth; a conveying pipe is further connected onto the main tank in an inserted manner; the gas source is connected to the main tank through a main electronically controlled proportioning valve and a main electromagnetic valve; the gas source is connected to the auxiliary tank through an auxiliary electronically controlled proportioning valve and an auxiliary electromagnetic valve; the main electronically controlled proportioning valve and the auxiliary electronically controlled proportioning valve control the air pressure which is put into the main tank and the auxiliary tank respectively, and maintain the constant air pressure difference between the main tank and the auxiliary tank. According to the invention, the main electronically controlled proportioning valve and the auxiliary electronically controlled proportioning valve are utilized to control the air pressure put into the main tank and the auxiliary tank, so that the air pressure of the main tank and the auxiliary tank change with the fluctuation of the wire drawing speed and the constant air pressure difference between the main tank and the auxiliary tank is maintained; smooth transportation of the optical fiber coating is ensured; the generation of the bubbles in the optical fiber coating is reduced; the coating inside the main tank is avoided being pumped out; the quality of optical fiber wire drawing is ensured.
Description
Technical field
The present invention relates to optic fibre manufacturing technology field, relate in particular to a kind of coating unit that reduces optical fiber coatings bubble.
Background technology
Drawing optical fibers process is one of basic step of manufacturing optical fiber.Preform is fed system and sends in the smelting furnace higher than 2000 DEG C of high temperature and heat; form with filament after prefabricated rods is softening pulls out from lower furnace outlet; through the caliper of monitoring bare fibre diameter and do suitably cooling after; before the tiny crack of bare fibre glass surface not yet starts to spread because of external environment impact, coat rapidly two-layer ultraviolet curing acrylic resin at clean optical fiber surface and protected.After coating curing, optical fiber is wound onto on take-up reel, for operation is subsequently got ready.On optical fiber, the object of applying coating is the different extraneous dust particle contacts of protection bare fibre, and these particles can reduce the intensity of optical fiber significantly, and coating can also prevent extraneous moisture etch optical fiber, avoids loss to increase.Coating is except providing intensity protection, and it can also provide mechanical property protection to optical fiber in various environment.
Conventional optical fiber coatings coating unit is two-stage filling type at present, concrete mode is for there being two coating jars of main tank and auxiliary tank, coating in auxiliary tank is sent to main tank after some are listed as first assembly through pipeline valve etc. by air pressure, and then applies parcel processing from the coating die that main tank pressure is delivered to drawing optical fibers.Pressure in its main tank of existing coating unit can raise and need to increase with drawing speed of optical fiber, until drawing speed is stable, the pressure in main tank keeps substantially constant.And air pressure in auxiliary tank is constant all the time, the pressure reduction of auxiliary tank and main tank can produce because drawing speed changes fluctuation.At present for ensureing coating quality; conventionally can on the pipeline of main tank rear end, paint filter be installed; filter the impurity in coating; along with the strainer prolongation of duration of service; strainer increases gradually to the resistance of coating; air pressure in main tank also can increase accordingly, but the air pressure of auxiliary tank does not have in good time dynamic change, will affect coating and fill.For existing coating unit, if pressure reduction is too small, can be less than spending rate because of the coating recharge rate in main tank, and causes the coating emptying in main tank, in follow-up wire drawing, optical fiber can not get the coating parcel of coating, causes the abnormal consequence of serious production; If pressure reduction is excessive, can make auxiliary tank to main tank filling paint time, coating flow velocity is too fast produces a large amount of bubbles in the time entering main tank, with the coating of a large amount of bubbles, can make optical fiber produce a large amount of particles after being coated on optical fiber, reduce optical fiber quality, even cause that wire drawing is disconnected fine, reduce production efficiency.
Summary of the invention
The technical assignment of technical problem to be solved by this invention and proposition is that prior art is improved, a kind of coating unit that reduces optical fiber coatings bubble is provided, the optical fiber coating device solving in current technology easily causes producing bubble in coating in the time applying, and has a strong impact on the problem of optical fiber quality.
For solving above technical problem, technical scheme of the present invention is:
A kind of coating unit that reduces optical fiber coatings bubble, comprise main tank, auxiliary tank and source of the gas, it is characterized in that, described main tank and auxiliary tank are by going deep into the pipe connecting UNICOM of tank mouth, on pipe connecting, be provided with pipe connecting valve, on main tank, be also plugged with transfer lime, source of the gas is connected to main tank by main electronically controlled proportional valve and main solenoid valve, source of the gas is connected to auxiliary tank by auxiliary electronically controlled proportional valve and auxiliary magnetic valve again, main electronically controlled proportional valve and auxiliary electronically controlled proportional valve respectively control inputs, to the air pressure in main tank and auxiliary tank, keep both constant draught heads.Main tank and auxiliary tank are all adopted electronically controlled proportional valve control air pressure by the coating unit of minimizing optical fiber coatings bubble of the present invention, air pressure in auxiliary tank fluctuates with main pressure tank, thereby ensure the constant pressure differential between main tank and auxiliary tank, the coating flow and the flow velocity that are transported to main tank by auxiliary tank through pipe connecting can keep stable equilibrium, there will not be excessive fluctuation, coating material is produced and bubble, affect optical fiber coating quality.Due to the effect of main electronically controlled proportional valve and auxiliary electronically controlled proportional valve, no matter can guarantee the drawing speed variation of how fluctuating, can be ensured steadily, to reduce the generation of bubble to the coating transhipment of main tank by auxiliary tank, ensure that main tank coating can not draw sky, improve wire drawing optical fiber quality.
Further, the air pressure of described auxiliary tank is than the large 0.01～0.30Mpa of the air pressure of main tank, under this pressure difference, can ensure that production persistence normally carries out, coating content in main tank can keep comparatively constant state, there will not be the phenomenon of settling off or coating emptying.
Further, the air pressure of described auxiliary tank, than the large 0.1Mpa of the air pressure of main tank, applies best results under this pressure reduction.
Further, on described main tank and auxiliary tank, returning apparatus has weather gage, utilizes weather gage to detect in real time the air pressure in main tank and auxiliary tank, grasps the operation conditions of coating unit, avoids unusual condition to occur.
Compared with prior art, the invention has the advantages that:
The coating unit of minimizing optical fiber coatings bubble of the present invention utilize main electronically controlled proportional valve and auxiliary electronically controlled proportional valve respectively control inputs to the air pressure in main tank and auxiliary tank, both air pressure is changed with drawing speed fluctuation, keep both constant draught heads, the conveying that ensures coating is steady, reduce the generation of bubble in coating, also can avoid the coating in main tank to be evacuated, ensure the quality of drawing optical fibers simultaneously;
The coating unit of minimizing optical fiber coatings bubble of the present invention is simple in structure, low cost of manufacture, and suitability is strong, easy to make, and economic benefit is high.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention discloses a kind of coating unit that reduces optical fiber coatings bubble, the air pressure of the main tank of real-time monitoring and auxiliary tank in coating procedure, make pressure difference between the two keep constant, thereby it is stable that coating is carried from auxiliary tank to main tank, avoid producing a large amount of bubbles, improve optical fiber coating quality.
As shown in Figure 1, a kind of coating unit that reduces optical fiber coatings bubble, comprise main tank 1, auxiliary tank 2 and source of the gas 3, main tank 1 and auxiliary tank 2 are by going deep into pipe connecting 4 UNICOMs of tank mouth, on pipe connecting 4, be provided with pipe connecting valve 11, on main tank, be also plugged with transfer lime 5, source of the gas 3 is connected to main tank 1 by main electronically controlled proportional valve 6 and main solenoid valve 7, source of the gas 3 is connected to auxiliary tank 2 by auxiliary electronically controlled proportional valve 8 and auxiliary magnetic valve 9 again, main electronically controlled proportional valve 6 and auxiliary electronically controlled proportional valve 8 respectively control inputs to the air pressure in main tank 1 and auxiliary tank 2, keep both constant draught heads, the air pressure of auxiliary tank 2 is than the large 0.01～0.30Mpa of the air pressure of main tank 1, best results in the time of 0.1Mpa.In the time of this stable pressure difference, the air pressure of main tank 1 and auxiliary tank 2 is changed with drawing speed fluctuation by electronically controlled proportional valve control, and the conveying of coating can held stationary, effectively avoids the generation of bubble, ensure that the coating in main tank can not draw sky simultaneously, ensure the quality of drawing optical fibers.
The feeding mouth of pipe connecting 4 in auxiliary tank 2 is lower than the interior coating minimum level of auxiliary tank 2, and near the bottom of auxiliary tank 2, the feeding mouth of transfer lime 5 in main tank 1 is lower than the interior coating minimum level of main tank 1, near the bottom of main tank 1.The discharge port of pipe connecting 4 in main tank 1 is higher than the high liquid level (HLL) of main tank 1 interior coating.Transfer lime 5 is pressed close in the discharge port bending of pipe connecting 4 in main tank 1, and coating is exported along transfer lime 5 tube walls and flowed into main tank 1 from pipe connecting 4.Gap between the tube wall of the discharge port of pipe connecting 4 and transfer lime 5 is 2 ± 0.5mm.Adopt above pipeline mode can effectively avoid coating in course of conveying, to produce bubble, at the bottom of the feeding mouth of pipe connecting 4 and transfer lime 5 is all positioned at tank, avoid air in tank to enter into pipeline, the coating that pipe connecting 4 is exported flow in main tank 1 along the tube wall of transfer lime 5, avoids drippage to produce bubble.
On main tank 1 and auxiliary tank 2, returning apparatus has weather gage 10, can real-time monitoring of tank internal gas pressure, avoid producing unexpected generation.
In the time using the coating unit of minimizing optical fiber coatings bubble of the present invention, air pressure in auxiliary tank 2 is greater than the air pressure in main tank 1, coating in auxiliary tank 2 is pressed in pipe connecting 4, coating runs underneath to main tank 1 along the tube wall of transfer lime 5 from the discharge port of pipe connecting 4, the air pressure existing in main tank 1 makes coating in winner's tank 1 be pressed into transfer lime 5 to be transported to drawing optical fibers place and to apply parcel, along with the rising of drawing speed, main electronically controlled proportional valve 6 is controlled the air pressure strengthening in main tank 1, meanwhile auxiliary electronically controlled proportional valve 8 also strengthens the air pressure in auxiliary tank 2, ensure that main tank 1 and auxiliary tank 2 have constant pressure difference, make the recharge rate of winner's tank 1 interior coating and spending rate reach the state of balance, the conveying of coating is steady, reduce the generation of bubble, ensure to produce and continue normally to carry out.
Meanwhile, after the coating emptying in auxiliary tank 2, close pipe connecting valve 11, only main tank 1 is in running order, now can open auxiliary tank 2 toward interior interpolation coating, after the enough coating of interpolation, close again auxiliary tank 2 lids and open pipe connecting valve 11, make whole device continue normal operation.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. one kind is reduced the coating unit of optical fiber coatings bubble, comprise main tank (1), auxiliary tank (2) and source of the gas (3), it is characterized in that, described main tank (1) and auxiliary tank (2) are by going deep into pipe connecting (4) UNICOM of tank mouth, on pipe connecting (4), be provided with pipe connecting valve (11), on main tank, be also plugged with transfer lime (5), source of the gas (3) is connected to main tank (1) by main electronically controlled proportional valve (6) and main solenoid valve (7), source of the gas (3) is connected to auxiliary tank (2) by auxiliary electronically controlled proportional valve (8) and auxiliary magnetic valve (9) again, main electronically controlled proportional valve (6) and auxiliary electronically controlled proportional valve (8) respectively control inputs arrive the air pressure in main tank (1) and auxiliary tank (2), keep main tank (1) and both constant draught heads of auxiliary tank (2).
2. the coating unit of minimizing optical fiber coatings bubble according to claim 1, is characterized in that, the air pressure of described auxiliary tank (2) is than the large 0.01～0.30Mpa of air pressure of main tank (1).
3. the coating unit of minimizing optical fiber coatings bubble according to claim 2, is characterized in that, the air pressure of described auxiliary tank (2) is than the large 0.1Mpa of air pressure of main tank (1).
4. the coating unit of minimizing optical fiber coatings bubble according to claim 1, is characterized in that, described main tank (1) has weather gage (10) with the upper returning apparatus of auxiliary tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410341817.5A CN104071991B (en) | 2014-07-17 | 2014-07-17 | Coating device of reducing bubbles in optical fiber coating |
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| CN201410341817.5A CN104071991B (en) | 2014-07-17 | 2014-07-17 | Coating device of reducing bubbles in optical fiber coating |
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| CN104071991A true CN104071991A (en) | 2014-10-01 |
| CN104071991B CN104071991B (en) | 2017-02-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649590A (en) * | 2015-03-05 | 2015-05-27 | 重庆国际复合材料有限公司 | Glass fiber anti-electrostatic agent coating device |
| CN107401988A (en) * | 2017-09-08 | 2017-11-28 | 成都中住光纤有限公司 | A kind of optical fiber coating concentricity monitoring system |
| CN109485273A (en) * | 2018-12-14 | 2019-03-19 | 法尔胜泓昇集团有限公司 | A kind of the coating feeding system and method for feeding of the coating of drawing optical fibers resin |
| CN111675496A (en) * | 2020-07-31 | 2020-09-18 | 成都中住光纤有限公司 | Optical fiber coating device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06144882A (en) * | 1992-11-02 | 1994-05-24 | Showa Electric Wire & Cable Co Ltd | Coating die device for optical fiber |
| CN2850719Y (en) * | 2005-11-10 | 2006-12-27 | 江苏亨通光纤科技有限公司 | Automatic coating feeding device for optical fiber drawing tower |
| CN101954339A (en) * | 2010-10-28 | 2011-01-26 | 中天科技光纤有限公司 | Feeding system for preventing bubble generation during optical fiber coating |
| CN102627412A (en) * | 2012-04-20 | 2012-08-08 | 成都中住光纤有限公司 | Optical fiber coating device capable of reducing bubbles in optical fiber coating |
| CN204039256U (en) * | 2014-07-17 | 2014-12-24 | 成都中住光纤有限公司 | A kind of coating unit reducing optical fiber coatings bubble |
-
2014
- 2014-07-17 CN CN201410341817.5A patent/CN104071991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06144882A (en) * | 1992-11-02 | 1994-05-24 | Showa Electric Wire & Cable Co Ltd | Coating die device for optical fiber |
| CN2850719Y (en) * | 2005-11-10 | 2006-12-27 | 江苏亨通光纤科技有限公司 | Automatic coating feeding device for optical fiber drawing tower |
| CN101954339A (en) * | 2010-10-28 | 2011-01-26 | 中天科技光纤有限公司 | Feeding system for preventing bubble generation during optical fiber coating |
| CN102627412A (en) * | 2012-04-20 | 2012-08-08 | 成都中住光纤有限公司 | Optical fiber coating device capable of reducing bubbles in optical fiber coating |
| CN204039256U (en) * | 2014-07-17 | 2014-12-24 | 成都中住光纤有限公司 | A kind of coating unit reducing optical fiber coatings bubble |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649590A (en) * | 2015-03-05 | 2015-05-27 | 重庆国际复合材料有限公司 | Glass fiber anti-electrostatic agent coating device |
| CN107401988A (en) * | 2017-09-08 | 2017-11-28 | 成都中住光纤有限公司 | A kind of optical fiber coating concentricity monitoring system |
| CN107401988B (en) * | 2017-09-08 | 2023-09-15 | 成都中住光纤有限公司 | Optical fiber coating concentricity monitoring system |
| CN109485273A (en) * | 2018-12-14 | 2019-03-19 | 法尔胜泓昇集团有限公司 | A kind of the coating feeding system and method for feeding of the coating of drawing optical fibers resin |
| CN111675496A (en) * | 2020-07-31 | 2020-09-18 | 成都中住光纤有限公司 | Optical fiber coating device |
| CN111675496B (en) * | 2020-07-31 | 2024-03-19 | 成都中住光纤有限公司 | Optical fiber coating device |
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