CN111908807B - Optical fiber coating device with starting auxiliary function - Google Patents
Optical fiber coating device with starting auxiliary function Download PDFInfo
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- CN111908807B CN111908807B CN202010803576.7A CN202010803576A CN111908807B CN 111908807 B CN111908807 B CN 111908807B CN 202010803576 A CN202010803576 A CN 202010803576A CN 111908807 B CN111908807 B CN 111908807B
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- optical fiber
- wire drawing
- coating device
- air source
- heating pipe
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- 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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- 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
- C03C25/104—Coating to obtain optical fibres
- C03C25/105—Organic claddings
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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 an optical fiber coating device with a starting auxiliary function, which comprises a coating device, an ultraviolet curing device and a traction mechanism which are sequentially arranged below a wire drawing outlet of a wire drawing furnace, and is characterized in that an optical fiber auxiliary heating device is arranged between the wire drawing outlet of the wire drawing furnace and the coating device relative to an optical fiber traction track. According to the invention, the optical fiber auxiliary heating device is arranged for heating the bare optical fiber in the drawing starting stage, so that the temperature compensation of the bare optical fiber is increased, the coating layer of the bare optical fiber can reach the standard, the optical fiber scrap in the drawing starting stage is effectively reduced, the optical fiber treatment process in the drawing starting stage is optimized, and the qualification rate and the production efficiency of optical fiber drawing are improved. The invention has simple structure, convenient use and operation, free movement and removal and high reliability, fully meets the high-temperature heating of the bare optical fiber in the drawing starting stage, ensures that the temperature of the bare optical fiber is matched with the temperature of the coating device and the speed of the traction device, and quickly increases the drawing speed.
Description
Technical Field
The invention relates to an optical fiber coating device with a starting auxiliary function, and belongs to the technical field of optical fiber manufacturing equipment.
Background
The optical fiber is formed by high-temperature melting and drawing of a glass optical fiber perform, in the optical fiber drawing process, the glass optical fiber perform is heated and softened in a drawing furnace, the lower end cone part is in a molten state, glass fiber filaments are formed through viscous flow under the action of traction force, and the glass fiber filaments sequentially pass through functional units such as high-temperature quenching, rapid cooling, resin coating, ultraviolet curing, a traction device and the like to form a finished optical fiber coated with a resin coating layer finally. In the optical fiber drawing process, the diameter of the glass optical fiber and the thickness of the resin coating layer are strictly regulated and controlled, and the optical fiber with qualified outer diameter can be finally obtained.
The existing optical fiber drawing coating device mainly meets the requirement of high-speed optical fiber drawing, but in the drawing starting stage of the optical fiber, because the drawing speed is low, the temperature of the bare optical fiber before coating is low, after the coating device coats resin paint, the outer diameter of the optical fiber coating is large, the fluctuation is large and difficult to control in the low-speed increasing stage, the optical fiber is scrapped due to the fact that the coating exceeds the standard, and the optical fiber processing scrapping in the optical fiber drawing starting stage can be generated by continuing a period of time until the normal coating stage is reached.
Disclosure of Invention
The invention aims to solve the technical problem of providing an optical fiber coating device with a starting auxiliary function aiming at the defects in the prior art, which can effectively reduce the scrappage of optical fibers in the drawing starting stage, thereby improving the qualification rate and the production efficiency of optical fiber drawing.
The technical scheme provided by the invention for solving the problems is as follows: the device comprises a coating device, an ultraviolet curing device and a traction mechanism which are sequentially arranged below a wire drawing outlet of a wire drawing furnace, and is characterized in that an optical fiber auxiliary heating device is arranged between the wire drawing outlet of the wire drawing furnace and the coating device relative to an optical fiber traction track.
According to the scheme, the auxiliary heating device comprises a heating pipe and a hot air source connected with the heating pipe.
According to the scheme, the pipe wall of the heating pipe is a hollow closed annular cavity, air outlet holes are formed in the inner wall of the hollow closed annular cavity along the upper part, the lower part and the circumferential direction of the pipe body, and the hollow closed annular cavity is communicated with a hot air source.
According to the scheme, one side of the heating pipe is forked, and the other side of the heating pipe is connected with the translation driving mechanism to form the movable optical fiber auxiliary heating device.
According to the scheme, the translation driving mechanism comprises a moving frame and a driving device, the moving frame is connected with the heating pipe, and the driving device is connected with the moving frame.
According to the scheme, the hot air source comprises a heater and a compressed air source connected with the heater, and the heater is connected with the temperature controller.
According to the scheme, a flow controller is connected between the heater and the compressed air source in series.
The using process of the invention is as follows: in the starting stage of optical fiber drawing, the optical fiber auxiliary heating device is moved to the optical fiber traction track below the drawing furnace, the optical fiber is heated by the heating pipe, the temperature of the bare optical fiber in the starting stage of drawing is increased, the temperature of the bare optical fiber is matched with the temperature of the coating device, the speed of the traction device and the speed of the lifting speed, the drawing speed can be quickly increased, scrapping caused by the fact that the outer diameter of the coated optical fiber exceeds the standard is reduced, the optical fiber auxiliary heating device stops working or removes a working area after the coating condition is stable, and the optical fiber auxiliary heating device is restored to a normalized working state.
The invention has the beneficial effects that: 1. the bare optical fiber in the wire drawing starting stage is heated by the optical fiber auxiliary heating device, so that the temperature compensation of the bare optical fiber is increased, the coating layer of the bare optical fiber can reach the standard, the scrapping of the optical fiber in the wire drawing starting stage is effectively reduced, the treatment process of the wire drawing starting stage on the optical fiber is optimized, and the qualification rate and the production efficiency of optical fiber wire drawing are improved. 2. The structure that the inner wall of the hollow closed ring cavity is uniformly provided with air outlets along the upper part, the lower part and the circumferential direction of the pipe body and the hollow closed ring cavity is communicated with a hot air source is adopted, so that the optical fiber can be uniformly heated. 3. The invention has simple structure, convenient use and operation, free movement and removal and high reliability, fully meets the high-temperature heating of the bare optical fiber in the drawing starting stage, ensures that the temperature of the bare optical fiber is matched with the temperature of the coating device and the speed of the traction device, and quickly increases the drawing speed.
Drawings
FIG. 1 is a front view structural diagram of one embodiment of the present invention.
Fig. 2 is an enlarged structural view of the optical fiber auxiliary heating apparatus of fig. 1.
Fig. 3 is a cross-sectional elevation view of a heating tube of the present invention.
Fig. 4 is a top view of fig. 3.
Detailed Description
The invention is further described below with reference to the following figures and examples.
One embodiment of the invention is shown in figure 1, and comprises a coating device 3, an ultraviolet curing device 4, a measuring device 6 and a traction mechanism 7 which are arranged below a drawing outlet of a drawing furnace 14 in sequence, wherein a guide wheel 5 is arranged between the ultraviolet curing device and the measuring device and the traction mechanism; an optical fiber auxiliary heating device is arranged between a wire drawing outlet of a wire drawing furnace and a coating device relative to the traction track of an optical fiber 1, the auxiliary heating device comprises a heating pipe 2 and a hot air source connected with the heating pipe, the pipe wall of the heating pipe is provided with a hollow closed annular cavity 2b, air outlet holes 2a are uniformly distributed on the inner wall of the hollow closed annular cavity along the upper part and the lower part of the pipe body and the circumferential direction, the middle part of the heating pipe is a central through hole which is communicated from top to bottom, a bare optical fiber drawn out from a melting conical part 15 of an optical fiber prefabricated rod in a hearth of the wire drawing furnace is downwards pulled and passes through the central through hole of the heating pipe, the hollow closed annular cavity is communicated with the hot air source, the hot air source comprises a heater 8 and a compressed air source 12 connected with the heater, the compressed air source is a dry oil-free compressed air source, the heater is connected with a temperature controller 10, a flow controller 13 is connected between the heater and the compressed air source in series, and the flow controller is a float flow meter, the flow rate of gas required for heating can be set to control the flow rate of the compressed gas. The heated and heated air flow is introduced from the air flow inlet of the heating pipe, the high-temperature air flow enters the central through hole of the heating pipe through the air holes 2a uniformly distributed on the inner wall after flowing into the hollow closed annular cavity 2b of the heating pipe, and the high-temperature air flow in the cavity heats the flowing optical fiber 1 to heat the optical fiber. For facilitate the use and the operation, can heating pipe one side jag, jag is a 3 ~ 5 mm's transversal joint, heating pipe opposite side below links to each other with translation actuating mechanism, constitutes portable optic fibre auxiliary heating device, translation actuating mechanism including removing frame 11 and drive arrangement, drive arrangement be telescopic cylinder 9, remove frame and heating pipe and link to each other, telescopic cylinder with remove the frame and be connected, make the heating pipe can carry out the position at two different stations and switch.
During drawing, the optical fiber preform rod 15 is heated, softened and molded by the drawing furnace 14 to form the optical fiber 1, the bare optical fiber passes through the heating pipe 2 of the optical fiber auxiliary heating device and then is coated with inner and outer layers of resin coatings through the coating device 3 respectively, and then the coatings on the surface of the bare optical fiber are changed into solid from liquid after passing through the ultraviolet curing device 4. And then the yarn is wound on a yarn winding barrel through a yarn winding mechanism from the lower guide wheel 5, the measuring device 6, the traction device 7 and the like to the rear.
Claims (3)
1. An optical fiber coating device with a starting auxiliary function comprises a coating device, an ultraviolet curing device and a traction mechanism which are sequentially arranged below a wire drawing outlet of a wire drawing furnace, and is characterized in that an optical fiber auxiliary heating device is arranged between the wire drawing outlet of the wire drawing furnace and the coating device relative to an optical fiber traction track; the auxiliary heating device comprises a heating pipe and a hot air source connected with the heating pipe; the pipe wall of the heating pipe is a hollow closed annular cavity, air outlet holes are formed in the inner wall of the hollow closed annular cavity along the upper part, the lower part and the circumferential direction of the pipe body, and the hollow closed annular cavity is communicated with a hot air source; one side of the heating pipe is forked, and the other side of the heating pipe is connected with the translation driving mechanism to form the movable optical fiber auxiliary heating device.
2. The fiber coating apparatus having a start-up assist function as claimed in claim 1, wherein said hot air source comprises a heater and a compressed air source connected thereto, said heater being connected to a temperature controller.
3. An optical fiber coating apparatus having a start-up assist function as claimed in claim 2, wherein a flow controller is connected in series between the heater and the compressed air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010803576.7A CN111908807B (en) | 2020-08-11 | 2020-08-11 | Optical fiber coating device with starting auxiliary function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010803576.7A CN111908807B (en) | 2020-08-11 | 2020-08-11 | Optical fiber coating device with starting auxiliary function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111908807A CN111908807A (en) | 2020-11-10 |
| CN111908807B true CN111908807B (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010803576.7A Active CN111908807B (en) | 2020-08-11 | 2020-08-11 | Optical fiber coating device with starting auxiliary function |
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| CN (1) | CN111908807B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5386148B2 (en) * | 2008-11-05 | 2014-01-15 | 株式会社フジクラ | Manufacturing method and manufacturing apparatus for optical fiber |
| JP5372082B2 (en) * | 2011-08-12 | 2013-12-18 | 株式会社フジクラ | Manufacturing method and manufacturing apparatus for optical fiber |
| JP6457580B2 (en) * | 2017-04-10 | 2019-01-23 | 株式会社フジクラ | Optical fiber manufacturing method |
| CN206767940U (en) * | 2017-04-27 | 2017-12-19 | 江苏南方天宏通信科技有限公司 | A kind of optical fiber cooling apparatus |
| CN110746110A (en) * | 2019-12-10 | 2020-02-04 | 普天线缆集团有限公司 | Improved 1550 low loss optical fiber manufacturing apparatus and method of operation |
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Effective date of registration: 20220623 Address after: 433122 Changfei South Road, Jianghan Salt Chemical Industrial Park, Qianjiang City, Hubei Province Patentee after: Puli technology Qianjiang Co.,Ltd. Patentee after: Changfei optical fiber and cable Co., Ltd Address before: 430073 Optics Valley Avenue, East Lake New Technology Development Zone, Wuhan, Hubei, 9 Patentee before: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK Ltd. |