CN209778663U - Coating feeding system for optical fiber drawing resin coating - Google Patents
Coating feeding system for optical fiber drawing resin coating Download PDFInfo
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- CN209778663U CN209778663U CN201822102449.5U CN201822102449U CN209778663U CN 209778663 U CN209778663 U CN 209778663U CN 201822102449 U CN201822102449 U CN 201822102449U CN 209778663 U CN209778663 U CN 209778663U
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Abstract
The utility model relates to a coating feeding system of coating of optic fibre wire drawing resin, including first coating tank, second coating tank, recovery jar, coating filter, air supply input tube, respectively with air supply input union coupling's air supply line and pneumatic line, the air supply input tube is connected to the air supply line, the first coating tank of air supply line's first air feed branch union coupling, the second coating tank of second air feed branch union coupling. The first and second paint tanks are connected to the paint filter through first and second supply pipes, respectively. The first and second pneumatic valves are respectively and correspondingly arranged on the first and second feeding pipelines and are connected with the pneumatic pipeline through the first and second pneumatic branch pipes. A first material return pipe and a second material return pipe are arranged between the recovery tank and the first material supply pipe and the second material supply pipe; the first and second paint tanks are both provided with liquid level sensors. Two coating tanks are adopted for alternate feeding, so that stable and continuous feeding is ensured. This application has advantages such as the feed is stable, coating is clean.
Description
Technical Field
The utility model relates to a feeding system, concretely relates to double-pipeline feeding system in turn.
Background
In the process of drawing the quartz optical fiber, a resin coating needs to be coated on the surface of a bare fiber for protection and improvement of various parameters of the optical fiber, and generally, the optical fiber needs to be coated twice, so that the internal coating modulus is lower, and the external coating modulus is higher.
In the wet-wet coating process, the inner coating and the outer coating are heated to about 50 ℃, and then are respectively pressed into a die holder to be uniformly coated on the surface of the bare optical fiber.
In order to keep the paint supply uninterrupted in the coating process, currently, manufacturers begin to use a dual-material pipeline for alternate feeding, and publication No. CN103304155B discloses a feeding device for optical fiber coating, which has two paint tanks for alternate feeding, specifically, a first paint tank is arranged on a first weighing device, a second paint tank is arranged on a second weighing device, a first paint bucket is arranged in the first paint tank, a first paint is arranged in the first paint bucket, a first tank cover for covering the first paint tank is arranged on the first paint tank, a second paint bucket is arranged in the second paint tank, a second tank cover for covering the second paint bucket is arranged on the second paint tank, the first paint bucket is connected with a pneumatic three-way valve through a first paint conveying pipe, the second paint bucket is connected with the pneumatic three-way valve through a second paint conveying pipe, the waste collecting barrel is connected with the pneumatic three-way valve through the first waste pipe and the second waste pipe, the pneumatic three-way valve is connected with the coating cup through the third coating conveying pipe, the direction of the coating conveying pipe can be switched through the pneumatic three-way valve, and the condition that only one coating can convey the coating to the coating cup is guaranteed during work; when the paint cup works, paint is conveyed to the material cup by one paint tank, when the paint in the paint tank is nearly used up, the paint is switched to the other paint tank for feeding, and in the switching process, the paint tank can pre-discharge the paint containing air bubbles into a waste bucket, so that the problem of coating quality is avoided.
However, the above feeding device still has disadvantages, and the switching action is not smooth enough in the switching process of the paint bucket, especially the flow fluctuation exists in the switching process, which affects the uniformity of the paint coating.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an optical fiber wire drawing resin coating feeding system adopts the feed in turn of double-pipe, and the feed is steady when the pipeline switches, and system control is more sensitive, the clean feed of pipeline.
The utility model provides a technical scheme that above-mentioned problem adopted does: a coating feeding system for coating optical fiber drawing resin comprises a first coating tank, a second coating tank, a recovery tank, a coating filter, an air source input pipe, an air supply pipeline and a pneumatic pipeline, wherein the air supply pipeline and the pneumatic pipeline are respectively connected with the air source input pipe; the first paint tank is connected with the filter through a first feed pipe, the second paint tank is connected with the filter through a second feed pipe, and paint output by the first paint tank or the second paint tank is filtered by the filter and then is fed outwards; the first feeding pipe pipeline is provided with a first pneumatic valve, the second feeding pipe pipeline is provided with a second pneumatic valve, the first pneumatic valve is connected with the pneumatic pipeline through a first pneumatic branch pipe, and the second pneumatic valve is connected with the pneumatic pipeline through a second pneumatic branch pipe; a first material return pipe is arranged between the recovery tank and the first material supply pipe, and a second material return pipe is arranged between the recovery tank and the second material supply pipe; the first coating tank and the second coating tank are both provided with liquid level sensors or weighing sensors.
in order to guarantee the mobility of coating and be convenient for the coating, need keep warm to scribble the paint can and feed pipe, consequently, this application still includes the water bath, the heat preservation circulating pipe is connected to the water bath, first scribble paint can, first feed pipe, coating filter, second and scribble paint can, second feed pipe and all keep warm on the circulating pipe way.
When first or second paint can in the time feed supplement, the disappointing solenoid valve is opened and is lost heart, gives the paint can pressure release to conveniently open the paint can, first paint can and second paint can all dispose the disappointing pipe, be provided with the solenoid valve that loses heart on the disappointing pipe.
The better setting is, equally divide on the pipeline of first air feed branch pipe and second air feed branch pipe and do not be provided with proportional valve, the solenoid valve that admits air for the pressure in the adjustment coating jar, stably admit air and in time stop admitting air.
Preferably, a main electromagnetic valve is arranged on the air supply pipeline.
Preferably, a pneumatic valve is arranged on the pneumatic pipeline.
Preferably, the first pneumatic branch and the second pneumatic branch are both provided with electromagnetic valves.
And the pipeline of the gas source input pipe is provided with a gas source filter, and the gas source filter is used for filtering the compressed gas input into the feeding system to remove water and oil.
in order to facilitate observation of the pressure in the paint tank, particularly judgment of the pressure in the paint tank after pressure relief, the first paint tank and the second paint tank are provided with pressure displays.
the working principle of the feeding system of the application is as follows:
In order to ensure that the coating process is stable and continuous and meet the requirement of high-speed wire drawing, a double-material tank design is adopted: the first and second paint tanks are operated alternately.
Compressed air of the air source input pipe passes through the filter to remove moisture and oil, enters the first coating tank through the first air supply branch pipe by the air supply pipeline, enters the second coating tank through the second air supply branch pipe, and adjusts the pressure in the corresponding coating tank through a main electromagnetic valve on the air supply pipeline, a proportion adjusting valve on the first or second air supply branch pipe and an air inlet electromagnetic valve, so that the corresponding coating tank supplies materials.
The first coating tank and the second coating tank are mutually independent and are connected with the coating filter through the corresponding first supply pipe and the second supply pipe, and the coating is filtered by the coating filter and then is supplied to the optical fiber coating die. The first supply tank and the second supply tank are operated alternately, so that the coating material is ensured not to stop feeding.
The water bath tank heats and preserves the temperature of the coating tank, the coating pipe and the coating filter, and ensures the fluidity and the coating adhesiveness of the coating.
The coating material supply method for coating the optical fiber drawing resin comprises the following steps: compressed air in the air source input pipe is filtered by an air source filter, the electromagnetic valve and the air valve are opened, clean compressed air is connected to the first paint tank and the second paint tank through the first air supply branch pipe and the second air supply branch pipe respectively through the air supply pipeline, and the clean compressed air is connected to the first pneumatic valve and the second pneumatic valve through the first pneumatic branch pipe and the second pneumatic branch pipe respectively through the pneumatic pipeline; opening a proportional valve and an air inlet electromagnetic valve on a first air supply branch pipe to pressurize a first paint tank, preparing the first paint tank for feeding, filling a first feeding pipe with paint, controlling a first pneumatic valve to enable the first feeding pipe to be communicated with a paint filter, and filtering and outputting the paint by the paint filter; the liquid level sensor monitors the paint liquid level of the first paint tank, when the liquid level in the first paint tank is reduced to a critical value, the proportional valve and the air inlet electromagnetic valve on the second air supply branch pipe are opened to pressurize the second paint tank, the second paint tank is ready to supply, the second paint tank is filled with paint, the first paint tank is kept in a supply state, after a time delay, the second pneumatic valve is controlled to enable the second supply pipe to be communicated with the paint filter, the second paint tank starts to supply the paint to the paint filter, after the second paint tank starts to supply the paint for a period of time, the first pneumatic valve is controlled to close the first supply pipe, the proportional valve and the air inlet electromagnetic valve of the first air supply branch pipe are controlled to stop pressurizing the first paint tank, the air release electromagnetic valve of the first paint tank is opened to supply the paint to the first paint pressure relief tank, after the first paint tank is fully opened, when the liquid level sensor in the second paint tank detects that the paint liquid level in the second paint tank reaches the critical value, the paint filter is switched to the first paint tank to feed in the same way, so that the continuous feeding of the paint filter is realized;
When the wire drawing stops or the fiber is broken, the first pneumatic valve or the second pneumatic valve in the connection state is closed, and the coating input of the current feed pipe is disconnected.
Compared with the prior art, the utility model has the advantages of: the coating feeding system has the advantages of stable feeding, clean coating and the like in the optical fiber drawing and coating process, and particularly ensures uninterrupted feeding.
Drawings
Fig. 1 is a schematic structural diagram of a feeding system in an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a coating die holder system according to an embodiment of the present invention.
Detailed Description
the present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the coating material supply system for coating the optical fiber drawing resin comprises a first coating material tank 7, a second coating material tank 8, a recovery tank 9, a coating material filter 10, an air source input pipe, an air supply pipeline and a pneumatic pipeline which are respectively connected with the air source input pipe, wherein the air source filter 1 is arranged on the air source input pipe.
The air supply line is connected with an air source input pipe, a main electromagnetic valve 2 is arranged on the air supply line, a first air supply branch pipe and a second air supply branch pipe which are arranged in parallel are divided from the air supply line, the first air supply branch pipe is connected with a first coating tank 7 and used for inputting compressed air to the first coating tank 7 to enable feeding, and the second air supply branch pipe is connected with a second coating tank 8 and used for inputting compressed air to the second coating tank 8 to enable feeding. The pipelines of the first air supply branch pipe and the second air supply branch pipe are respectively provided with a proportional valve (6, 6 ') and an air inlet electromagnetic valve (5, 5').
the first paint tank 7 is connected to a paint filter 10 through a first supply pipe, the second paint tank 8 is connected to the paint filter 10 through a second supply pipe, and the paint discharged from the first paint tank 7 or the second paint tank 8 is filtered by the paint filter and then supplied to the outside. In order to realize the alternative operation of first feed pipe, be provided with first pneumatic valve 12 on the first feed pipe pipeline, be provided with second pneumatic valve 12 ' on the second feed pipe pipeline, first pneumatic valve 12 is through first pneumatic branch connection pneumatic line, second pneumatic valve 12 ' is through second pneumatic branch connection pneumatic line, pneumatic line is last to be provided with pneumatic valve 3, all be provided with solenoid valve (11, 11 ') on first pneumatic branch road and the second pneumatic branch road.
a first material return pipe is arranged between the recovery tank 9 and the first feeding pipe, a second material return pipe is arranged between the recovery tank 9 and the second feeding pipe, in the switching feeding process, residual or overflowing paint in the first feeding pipe is collected into the recovery tank 9 through the first material return pipe, and residual or overflowing paint in the second feeding pipe is collected into the recovery tank 9 through the second material return pipe.
The first paint tank 7 and the second paint tank 8 are each provided with a level sensor for monitoring the paint level in the corresponding paint tank. The first paint tank 7 and the second paint tank 8 are both provided with air release pipes, and air release electromagnetic valves (6, 6') are arranged on the air release pipes. The first paint tank 7 and the second paint tank 8 are each provided with a pressure display (14, 14').
In order to ensure the fluidity and viscosity of the paint, the system further comprises a water bath tank 13, a heat preservation circulation pipe connected with the water bath tank 13, and a first paint tank 7, a first feeding pipe, a paint filter 10, a second paint tank 8 and a second feeding pipe are all arranged on the heat preservation circulation pipe.
The feeding mode of the feeding system is as follows: compressed air in the air source input pipe is filtered by an air source filter, the electromagnetic valve and the air valve are opened, clean compressed air is connected to the first paint tank and the second paint tank through the first air supply branch pipe and the second air supply branch pipe respectively through the air supply pipeline, and the clean compressed air is connected to the first pneumatic valve and the second pneumatic valve through the first pneumatic branch pipe and the second pneumatic branch pipe respectively through the pneumatic pipeline; opening a proportional valve and an air inlet electromagnetic valve on a first air supply branch pipe to pressurize a first paint tank, preparing the first paint tank for feeding, filling a first feeding pipe with paint, controlling a first pneumatic valve to enable the first feeding pipe to be communicated with a paint filter, and filtering and outputting the paint by the paint filter; the liquid level sensor monitors the paint liquid level of the first paint tank, when the liquid level in the first paint tank is reduced to a critical value, the proportional valve and the air inlet electromagnetic valve on the second air supply branch pipe are opened to pressurize the second paint tank, the second paint tank is ready to supply, the second paint tank is filled with paint, the first paint tank is kept in a supply state, after a time delay, the second pneumatic valve is controlled to enable the second supply pipe to be communicated with the paint filter, the second paint tank starts to supply the paint to the paint filter, after the second paint tank starts to supply the paint for a period of time, the first pneumatic valve is controlled to close the first supply pipe, the proportional valve and the air inlet electromagnetic valve of the first air supply branch pipe are controlled to stop pressurizing the first paint tank, the air release electromagnetic valve of the first paint tank is opened to supply the paint to the first paint pressure relief tank, after the first paint tank is fully opened, when the liquid level sensor in the second paint tank detects that the paint liquid level in the second paint tank reaches the critical value, in the same way, the paint filter is continuously fed by switching to the first paint tank for feeding. When the wire drawing stops or the fiber is broken, the first pneumatic valve or the second pneumatic valve in the connection state is closed, and the coating input of the current feed pipe is disconnected.
Above-mentioned structure coating feeding system adopts two paint tanks alternative feeds, ensures the stability of feed and lasts.
The coating filter is further coupled to a coating die holder system through which the optical fiber is surface coated. The coating die holder system comprises a die holder 101 and a die 102 arranged in the die holder 101, wherein the die 102 is provided with an optical fiber through hole which is through up and down, and a blowing structure A, a first coating structure B and a second coating structure C are sequentially formed in the die 102 along the optical fiber through hole. The air outlet of the purging structure is communicated with the optical fiber through hole, the purging structure is connected with a carbon dioxide source through a gas transmission pipeline, and a gas transmission electromagnetic valve 108 and a gas valve 107 are arranged on the gas transmission pipeline.
The first coating structure is connected with the first coating supply pipeline, the second coating structure is connected with the second coating supply pipeline, and the first coating supply pipeline and the second coating supply pipeline are both provided with pressure sensors 109. The die holder 101 is connected with a water bath box 106 through a warm water circulating pipeline to control the temperature of the die holder 101.
The system is provided with a PLC, the die holder 1 is provided with a PT100 for feeding back the temperature of the die holder, the water bath box 106 is in signal connection with the PLC, the PT100 feeds back the temperature of the die holder to the PLC, the pressure sensor 109 is in signal connection with the PLC, the control relation between the temperature of the die holder and the feeding speed of the coating is established in the PLC, and the temperature of the water bath box is automatically adjusted through the PLC.
In order to avoid the paint in the die 102 from dripping onto the UV curing lamp below, a movable baffle plate 103 is arranged below the die holder 101, the movable baffle plate 103 is connected to an air cylinder 104, the air cylinder 104 is connected with an electromagnetic valve 105 through signals, and the air cylinder 104 receives the signals of the electromagnetic valve 105 to drive the movable baffle plate 103 to act. In the coating state, the movable baffle 103 is moved away from the lower part of the optical fiber through hole, and in the fiber breaking state, the movable baffle 103 is moved to the lower part of the optical fiber through hole to block the optical fiber through hole.
The coating die holder 1 system with the structure can make the temperature of the coating in the die 102 adaptively change along with the feeding speed, avoid pipe blockage and valve blockage and ensure the stability of the coating effect. In addition, the baffle 103 is arranged to collect paint overflowing from the die 102 when fiber breakage occurs, so that the paint is prevented from falling onto the UV curing lamp below the die holder 101.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (9)
1. An optical fiber drawing resin coating paint feeding system is characterized in that: comprises a first coating tank, a second coating tank, a recovery tank, a coating filter, an air source input pipe, an air supply pipeline and a pneumatic pipeline which are respectively connected with the air source input pipe,
The air supply pipeline is connected with an air source input pipe and comprises a first air supply branch pipe and a second air supply branch pipe which are arranged in parallel, the first air supply branch pipe is connected with the first paint tank and used for inputting compressed air into the first paint tank to supply materials, and the second air supply branch pipe is connected with the second paint tank and used for inputting compressed air into the second paint tank to supply materials;
The first paint tank is connected with the paint filter through a first feed pipe, the second paint tank is connected with the paint filter through a second feed pipe, and paint output by the first paint tank or the second paint tank is filtered by the filter and then is fed outwards;
The first feeding pipe pipeline is provided with a first pneumatic valve, the second feeding pipe pipeline is provided with a second pneumatic valve, the first pneumatic valve is connected with the pneumatic pipeline through a first pneumatic branch pipe, and the second pneumatic valve is connected with the pneumatic pipeline through a second pneumatic branch pipe;
A first material return pipe is arranged between the recovery tank and the first material supply pipe, and a second material return pipe is arranged between the recovery tank and the second material supply pipe;
The first coating tank and the second coating tank are both provided with liquid level sensors or weighing sensors.
2. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: the paint spraying device further comprises a water bath tank, the water bath tank is connected with a heat-preservation circulating pipe, and the first paint tank, the first paint supply pipe, the paint filter, the second paint tank and the second paint supply pipe are all arranged on the heat-preservation circulating pipe.
3. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: first scribble paint can and second scribble paint can all dispose the air escape pipe, be provided with the solenoid valve that loses heart on the air escape pipe.
4. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: and the pipelines of the first air supply branch pipe and the second air supply branch pipe are respectively provided with a proportional valve and an air inlet electromagnetic valve.
5. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: the air supply pipeline is provided with a main electromagnetic valve.
6. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: and an air valve is arranged on the pneumatic pipeline.
7. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: and the pipeline of the air source input pipe is provided with an air source filter.
8. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: the first paint tank and the second paint tank are each provided with a pressure display.
9. The optical fiber drawing resin-coated paint supply system of claim 1, wherein: and the first pneumatic branch and the second pneumatic branch are both provided with electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822102449.5U CN209778663U (en) | 2018-12-14 | 2018-12-14 | Coating feeding system for optical fiber drawing resin coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822102449.5U CN209778663U (en) | 2018-12-14 | 2018-12-14 | Coating feeding system for optical fiber drawing resin coating |
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| Publication Number | Publication Date |
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| CN209778663U true CN209778663U (en) | 2019-12-13 |
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| CN201822102449.5U Active CN209778663U (en) | 2018-12-14 | 2018-12-14 | Coating feeding system for optical fiber drawing resin coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-12-14 CN CN201822102449.5U patent/CN209778663U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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