CN215799185U - Coating die for drawing quartz optical fiber - Google Patents
Coating die for drawing quartz optical fiber Download PDFInfo
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- CN215799185U CN215799185U CN202122363630.3U CN202122363630U CN215799185U CN 215799185 U CN215799185 U CN 215799185U CN 202122363630 U CN202122363630 U CN 202122363630U CN 215799185 U CN215799185 U CN 215799185U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model discloses a coating die for drawing a quartz optical fiber, which comprises an inner coating cup and an outer coating cup, wherein the outer coating cup is sleeved on the surface of the inner coating cup and is sealed and fixed through two sealing rings, a plurality of micropores are formed in the surface of the inner coating cup between the two sealing rings, the micropores are uniformly distributed along the same circumferential direction and are matched to form an annular mesh structure, an annular air inlet channel is formed in the inner wall of the outer coating cup corresponding to the micropores, an air supply channel is further arranged between the annular air inlet channel and the outer wall of the outer coating cup and is tangent to the annular air inlet channel, and the air supply channel is connected with a coating pipe. The utility model can ensure the uniform coating thickness of the optical fiber coating and improve the finished product rate of optical fiber drawing.
Description
Technical Field
The utility model relates to the technical field of optical fiber preparation, in particular to a coating die for drawing a quartz optical fiber.
Background
The optical fiber coating layer is the outermost layer structure of the optical fiber, and when the optical fiber is drawn out by the preform, a layer of elastic coating is prepared in order to prevent the optical fiber from being polluted by dust.
The coating die in the prior art consists of three parts: the optical fiber drawing device comprises a coating pipeline, an outer coating cup and an inner coating cup, wherein in the process of drawing an optical fiber, the optical fiber penetrates through the inner coating cup, the coating is under the action of pressure and enters between the inner coating cup and the outer coating cup through the coating pipeline, an annular structure is arranged between the inner coating cup and the outer coating cup, the inner part of the optical fiber is hollow, the optical fiber coating firstly enters the outer coating cup through the coating pipeline to be filled with the annular structure, four feeding holes are formed in the outer part of the inner coating cup and connected with an annular cavity of the outer coating cup, and the optical fiber coating enters an annular space between the inner coating cup and the outer coating cup through the coating pipeline and then is attached to the surface of the optical fiber through the four discharging holes of the inner coating cup.
Because the acting forces of the four feeding holes of the inner coating cup are different, the closer the feeding holes are to the discharging holes of the outer coating cup, the larger the action of the impact force of the coating is, so that the adhesion of the optical fiber coating is uneven, and the physical appearance is eccentric, therefore, the conventional die coating die can be normally used for producing thin optical fibers, and for thicker optical fibers (the diameter is more than or equal to 1000 micrometers), the optical fibers can be eccentric, and the strength of the optical fibers is further influenced.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a coating die for drawing a quartz optical fiber, which can ensure the uniform coating thickness of an optical fiber coating and improve the optical fiber drawing yield.
In order to solve the technical problem, the utility model provides a coating die for drawing a quartz optical fiber, which comprises an inner coating cup and an outer coating cup, wherein the outer coating cup is sleeved on the surface of the inner coating cup and is fixed in a sealing manner through two sealing rings, a plurality of micropores are formed in the surface of the inner coating cup between the two sealing rings, the micropores are uniformly distributed along the same circumferential direction and are matched to form an annular mesh structure, an annular air inlet channel is formed in the inner wall of the outer coating cup corresponding to the micropores, an air supply channel is further arranged between the annular air inlet channel and the outer wall of the outer coating cup, the air supply channel is tangent to the annular air inlet channel, and the air supply channel is connected with a coating pipe.
Further, the diameter of the micropores is 0.4-0.8 mm.
Furthermore, an annular channel is arranged on the outer wall of the inner coating cup corresponding to the micropores.
Further, the bottom of the inner coating cup is erected on a limiting plate, and one end of the limiting plate is connected with the first mounting frame through a shaft.
Further, outer coating cup top passes through the adapter sleeve and is connected with diaxon fine setting slip table, diaxon fine setting slip table sets up on the second mounting bracket, diaxon fine setting slip table middle part is provided with the optic fibre via hole.
Further, the surface of the two-axis fine adjustment sliding table is further provided with an inflation cover, and the middle of the inflation cover is provided with an avoidance port.
Further, the sealing washer is O type structure, be provided with the mounting groove on the interior coating cup that the sealing washer corresponds, the sealing washer is held power through deformation and is fixed with interior coating cup and outer coating cup.
The utility model has the beneficial effects that:
change original great discharge opening in four places aperture into annular mesh structure, the hole diameter is little, and 360 ejection of compact modes of annular, guarantees that pressure is even, can effectively avoid the uneven problem of pressure distribution that original discharge opening in four places very easily appears, and coating evenly gets into, guarantees the coating quality.
The original 90-degree vertical entering mode is changed into the tangential entering mode, so that the flowing of the coating in the annular space can be effectively promoted, the direct impact when the coating flows out of the coating pipe over against the position of the coating pipe is avoided, the condition of uneven pressure is further caused, and the internal discharging pressure is further homogenized.
Drawings
FIG. 1 is a schematic view of the mating structure of the inner and outer coating cups of the present invention;
FIG. 2 is a schematic illustration of the exploded structure of FIG. 1 of the present invention;
FIG. 3 is a schematic cross-sectional view of the outer coating cup;
FIG. 4 is a schematic view of the gas path structure for the coating between the inner and outer coating cups;
FIG. 5 is a schematic view of a first perspective of the inventive die installation;
fig. 6 is a schematic view of a second perspective of the inventive die set-up.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1 to 4, an embodiment of a coating mold for drawing a silica optical fiber according to the present invention includes an inner coating cup 1 and an outer coating cup 2, wherein the outer coating cup is sleeved on a surface of the inner coating cup and is sealed and fixed by two sealing rings 3, specifically, the sealing rings are of an O-shaped structure, the inner coating cup corresponding to the sealing rings is provided with an installation groove, and the sealing rings tightly support and fix the inner coating cup and the outer coating cup by a deformation force. The surface of an inner coating cup between two sealing rings is provided with a plurality of micropores 4, the diameter of each micropore is 0.4-0.8mm, the optimal diameter is 0.5mm, the micropores are uniformly distributed and matched along the same circumferential direction to form an annular mesh structure, the aperture of each micropore is small, the effect of current limiting is achieved, the consistency of the conduction quantity of each micropore is guaranteed, an annular air inlet channel 5 is arranged on the inner wall of the outer coating cup corresponding to each micropore, an air supply channel 6 is further arranged between the annular air inlet channel and the outer wall of the outer coating cup, the air supply channel and the annular air inlet channel are arranged in a tangent mode, and the air supply channel is connected with a coating pipe.
During the use, insert outer coating cup with interior coating cup in, both are fixed and form coating feed passage through the sealing washer, the coating pipe is supplied with coating from the air feed passage, in subsequent coating gets into annular intake duct, because the tangential admission, coating can directly not get into interior coating cup from the micropore, but circulate in the space that forms between annular intake duct and interior coating cup, thereby make evenly stepping up in the annular intake duct, after pressure increase, coating is the extrusion from the micropore promptly, form the effect of coating, because pressure is even, the outflow of coating in every micropore is also the same basically, it is inhomogeneous to avoid optic fibre coating thickness, the obvious eccentric quality problem of outward appearance, compare current mould preparation result as follows:
and because of the tangential entering mode, the air supply channel can be only arranged as one, and the use requirement can be met. The outer wall of the inner coating cup corresponding to the micropores is provided with an annular channel 7 which is matched with the inner coating cup to provide a larger flowing space, so that the uniformity of pressure is ensured.
For the convenience of the installation of interior coating cup and outer coating cup, refer to fig. 5 and fig. 6 and show, fix outer coating cup, interior coating cup movable mounting through the fixed back of sealing washer, including the coating cup bottom overlap establish on limiting plate 8, prevent that the axial from upwards dropping can, limiting plate one end and 9 axle links of first mounting bracket, when including the coating cup is dismantled, only need the limiting plate rotatory dodge can, the simple operation is reliable.
Because the horizontal direction position of interior coating cup is decided by outer coating cup, consequently will coat the cup top portion and be connected with diaxon fine setting slip table 11 through adapter sleeve 10 with outer, diaxon fine setting slip table sets up on second mounting bracket 12, and diaxon fine setting slip table middle part is provided with the optic fibre via hole, and the horizontal position of outer coating cup can be adjusted to diaxon fine setting slip table, drives interior coating cup synchronous regulation removal promptly.
In the preparation process, when air enters the inner coating cup, the coating quality is influenced, and therefore the inflatable cover 13 is further arranged on the surface of the two-axis fine adjustment sliding table, the avoiding opening is formed in the middle of the inflatable cover, carbon dioxide is flushed into the inflatable cover to be isolated, and the coating quality is guaranteed.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.
Claims (7)
1. The utility model provides a quartz fiber draws uses coating mould, a serial communication port, including interior coating cup and outer coating cup, the outer coating cup cover is established at interior coating cup surface and is sealed fixed through two sealing washers, and interior coating cup surface between two sealing washers is provided with a plurality of micropores, and a plurality of micropores are evenly arranged and cooperate along same circumferencial direction and form annular mesh structure, be provided with annular inlet duct on the outer coating cup inner wall that the micropore corresponds, still be provided with air feed channel between the outer wall of annular inlet duct and outer coating cup, air feed channel and the tangent setting of annular inlet duct, air feed channel and coating union coupling.
2. The coating die for drawing a silica optical fiber according to claim 1, wherein the diameter of said micro-holes is 0.4 to 0.8 mm.
3. The coating die for drawing a silica optical fiber as claimed in claim 1, wherein an annular groove is formed on an outer wall of the inner coating cup corresponding to said minute hole.
4. The coating die for drawing a silica optical fiber according to claim 1, wherein the bottom of the inner coating cup is overlapped with a limiting plate, and one end of the limiting plate is coupled to the first mounting frame.
5. The coating die for drawing a quartz optical fiber according to claim 1, wherein the top of the outer coating cup is connected with a two-axis fine adjustment sliding table through a connecting sleeve, the two-axis fine adjustment sliding table is arranged on the second mounting frame, and an optical fiber via hole is arranged in the middle of the two-axis fine adjustment sliding table.
6. A coating die for drawing a quartz optical fiber as recited in claim 5, wherein said two-axis fine tuning slide table further has an air-filled cover on its surface, and said air-filled cover has a evasion opening in its middle.
7. The coating die for drawing a silica optical fiber as claimed in claim 1, wherein said sealing ring has an O-shaped configuration, and an installation groove is formed in a corresponding inner coating cup of said sealing ring, and said sealing ring fixes said inner coating cup and said outer coating cup by a deformation force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122363630.3U CN215799185U (en) | 2021-09-28 | 2021-09-28 | Coating die for drawing quartz optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122363630.3U CN215799185U (en) | 2021-09-28 | 2021-09-28 | Coating die for drawing quartz optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215799185U true CN215799185U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122363630.3U Active CN215799185U (en) | 2021-09-28 | 2021-09-28 | Coating die for drawing quartz optical fiber |
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| CN (1) | CN215799185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321810A (en) * | 2022-08-19 | 2022-11-11 | 北京科技大学 | Preparation method of glass optical fiber |
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2021
- 2021-09-28 CN CN202122363630.3U patent/CN215799185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321810A (en) * | 2022-08-19 | 2022-11-11 | 北京科技大学 | Preparation method of glass optical fiber |
| CN115321810B (en) * | 2022-08-19 | 2023-09-19 | 北京科技大学 | Preparation method of glass optical fiber |
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| TR01 | Transfer of patent right |
Effective date of registration: 20221117 Address after: No. 102, Light Industrial Park, Chengguan Town, Shangcheng County, Xinyang City, Henan Province, 465300 Patentee after: Henan Craftsman Photoelectric Equipment Technology Co.,Ltd. Address before: 066000 No.1 Xihu Road, Qinhuangdao Economic and Technological Development Zone, Qinhuangdao City, Hebei Province Patentee before: INTRINIC CRYSTAL TECHNOLOGY CO.,LTD. |