CN113998879A - Method for manufacturing prefabricated rod and optical fiber - Google Patents
Method for manufacturing prefabricated rod and optical fiber Download PDFInfo
- Publication number
- CN113998879A CN113998879A CN202111161142.2A CN202111161142A CN113998879A CN 113998879 A CN113998879 A CN 113998879A CN 202111161142 A CN202111161142 A CN 202111161142A CN 113998879 A CN113998879 A CN 113998879A
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- Prior art keywords
- sleeve
- cutting
- sleeves
- preform
- rotary clamping
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The application discloses a manufacturing method of a prefabricated rod and an optical fiber, wherein the manufacturing method of the prefabricated rod comprises the following steps: 1) placing two sleeves on the rotary clamping seat respectively; 2) heating the sleeves to fuse the ends of the two sleeves together; 3) controlling the two rotary clamping seats to be far away from each other, so that the welding ends of the two sleeves form hollow conical parts which are connected with each other; 4) cutting off the two connected conical parts by a cutting mechanism; 5) the sleeve is moved out of the rotary clamping seat, and after the conical part is cooled, the end part of the conical part is cut off; 6) and (3) pickling and drying the sleeve, inserting the core rod into the sleeve, and enabling the end part of the core rod to be located at the conical structure to form the preform. According to the manufacturing method, when the conical part is not cooled, the two connected conical parts are cut off from the middle through the cutting mechanism, so that the sleeve can be separated from the rotary clamping seat, the conical parts do not need to be cooled, and the effective utilization rate of equipment can be effectively improved.
Description
Technical Field
The invention relates to the field of optical fiber preforms, in particular to a method for manufacturing a preform and an optical fiber.
Background
The casing method has the characteristics of high production efficiency and low cost. In actual operation, a tail pipe is welded at one end of a sleeve, a core rod is inserted into the sleeve through the tail pipe to form a preform, the preform formed by combining the sleeve and the core rod is sent to a wire drawing furnace to be drawn, and a clamping device above the wire drawing furnace clamps the tail pipe during wire drawing.
In actual production, in order to facilitate the wire drawing operation, one end of the sleeve 2 needs to be processed into a tapered portion 1, as shown in fig. 1, two horizontally arranged sleeves 2 are usually installed on a machine tool, the ends of the two sleeves 2 are welded and then separated, the two sleeves 2 form a hollow tapered portion 1, the small diameter ends of the two tapered portions 1 are connected, and after natural cooling, a worker cuts off the joint of the two tapered portions by a cutter.
According to the existing machining method, the sleeve needs to be naturally cooled for a long time after being pulled out of the conical part, and then can be cut, so that a machine tool is occupied for a long time, and the use efficiency of the machine tool is greatly reduced.
Disclosure of Invention
The present invention is directed to the above problems and provides a method of manufacturing a preform and an optical fiber.
The technical scheme adopted by the invention is as follows:
a method of manufacturing a preform comprising the steps of:
1) placing two sleeves on two coaxially arranged rotary clamping seats respectively;
2) the two sleeves are driven to approach each other by rotating the clamping seat, and the ends of the two sleeves are welded together by heating the sleeves through the blowtorch;
3) controlling the two rotary clamping seats to be far away from each other, so that the welding ends of the two sleeves form hollow conical parts which are connected with each other;
4) cutting off the two connected conical parts from the middle by a cutting mechanism;
5) removing the sleeve from the rotary clamping seat, and cutting off the end part of the conical part after the conical part is cooled to enable the end part of the conical part to be provided with an opening;
6) and (3) pickling and drying the sleeve, inserting the core rod into the sleeve, and enabling the end part of the core rod to be located at the conical structure to form the preform.
According to the manufacturing method, when the conical part is not cooled, the two connected conical parts are cut off from the middle through the cutting mechanism, so that the sleeve can be separated from the rotary clamping seat, the conical part does not need to be cooled, and the effective utilization rate of equipment can be effectively improved compared with the existing method.
In one embodiment of the present invention, the steps 1) to 4) are implemented by a tapering apparatus, where the tapering apparatus includes:
a frame;
the two rotary clamping seats are slidably mounted on the rack and used for clamping the sleeve and driving the sleeve to rotate, and the rotary clamping seats can reciprocate along the length direction of the base frame;
the blowtorch is slidably mounted on the frame, can reciprocate along the length direction of the base frame and is used for heating the sleeve; and
the cutting mechanism is arranged on the rack and is used for cutting off the two connected conical parts;
the shutdown mechanism includes two sets of subassemblies that cut off about rotatory cassette axis symmetry sets up, the subassembly that cuts off includes:
the cutting blade comprises two inclined planes which are obliquely intersected, and a blade edge is arranged at the intersection of the two inclined planes;
two glass sheets respectively arranged on the two inclined surfaces of the cutting blade, wherein the glass sheets can be separated from the inclined surfaces; and
the telescopic element is connected with the cutting blade and is used for driving the cutting blade to be close to or far away from the cone-shaped part;
when the cutting mechanism performs cutting operation, the cutting edges of the two cutting blades are contacted, and the edges of the two corresponding glass sheets are abutted against each other.
The application shutdown mechanism's theory of operation: under the rotatory state of heating, two rotatory cassettes are kept away from each other, make two sheathed tube butt fusion end formation interconnect's hollow taper portion, then shutdown mechanism work, make two cutting blades through flexible component, be close to each other, the operation of cutting off is accomplished in final two cutting edge contacts, and the border of two corresponding glass pieces supports each other and leans on each other, form the V-arrangement, the department of cutting can be in the same place with two glass pieces adhesion in the taper portion this moment, the rotatory cassette of control is further kept away from each other, the glass piece breaks away from on the inclined plane under the drive of taper portion.
The utility model provides a shutdown mechanism can cut under the cone portion high temperature state to reliable separation finally can make the sleeve pipe shift out rotatory cassette as early as possible, improves the utilization efficiency of rotatory cassette.
In one embodiment of the present invention, the telescopic element is horizontally disposed, and the telescopic element is a cylinder or an electric push rod.
In one embodiment of the present invention, a limiting structure is disposed between the glass sheet and the cutting blade, and the limiting structure includes a protrusion disposed on the cutting blade and a groove disposed on the cutting blade, and the protrusion is embedded in the corresponding groove.
Can carry on spacingly through the cooperation of lug and recess, prevent that the glass piece from dropping from the inclined plane.
In one embodiment of the invention, a channel is arranged on the cutting blade, one end of the channel extends to the inclined plane to form a through hole, the other end of the channel is respectively connected with a first air pipe and a second air pipe, the first air pipe is used for connecting a vacuum pump to enable the glass sheet to be adsorbed on the inclined plane in a negative pressure mode, and the second air pipe is used for connecting an air pump to destroy the negative pressure adsorption state of the glass sheet.
In one embodiment of the present invention, an end of the cutting blade facing away from the cutting edge has a first mounting hole and a second mounting hole, the first mounting hole is used for mounting a first air tube, and the second mounting hole is used for mounting a second air tube.
In an embodiment of the invention, the glass sheet has a bump, an outer diameter of the bump is smaller than an inner diameter of the through hole, and the bump is embedded into the through hole.
In one embodiment of the present invention, the taper device further includes a conveying mechanism, and the conveying mechanism is configured to convey the sleeve into the corresponding rotating clamping seat and to move the sleeve out of the rotating clamping seat; the conveying mechanism includes:
the first mounting frame is arranged on one side of the rack and can move up and down;
the supporting rollers are rotatably arranged on the first mounting frame and are used for supporting and limiting the sleeve;
the driving motor is used for driving the supporting roller to rotate;
the lifting element is connected with the first mounting frame and used for driving the first mounting frame to move up and down, the first mounting frame is provided with a conveying working position and an avoiding working position, the axis of the sleeve placed on the supporting roller coincides with the axis of the rotary clamping seat when the working position is conveyed, the first mounting frame moves down when the avoiding working position is carried out, and the rotary clamping seat does not interfere with the conveying mechanism when moving.
This application comes the conveying sleeve pipe through the supporting roller that can adjust from top to bottom, makes the sleeve pipe can convenient and fast insert rotatory cassette, and after processing is accomplished, also can be quick break away from uncooled sleeve pipe from rotatory cassette, for prior art, can effectively improve machining efficiency.
In one embodiment of the present invention, the present invention further includes a buffer mechanism, where the buffer mechanism is connected to the output mechanism in a butt joint manner, and is configured to receive the processed casing, and the buffer mechanism includes:
a second mounting bracket;
a plurality of spaced and parallel support rollers rotatably mounted on the second mounting bracket for supporting and defining the sleeve.
The processed and uncooled sleeves can be stored by the buffer means so as not to interfere with the cooperation of the new sleeves with the delivery means.
The application also discloses an optical fiber obtained by drawing a preform, the preform being made by the method of making a preform described above.
The invention has the beneficial effects that: according to the manufacturing method, when the conical part is not cooled, the two connected conical parts are cut off from the middle through the cutting mechanism, so that the sleeve can be separated from the rotary clamping seat, the conical part does not need to be cooled, and the effective utilization rate of equipment can be effectively improved compared with the existing method.
Description of the drawings:
FIG. 1 is a schematic view of a conventional two-piece sleeve with a tapered portion;
FIG. 2 is a schematic view of a partial structure of a tapering apparatus according to embodiment 1;
FIG. 3 is a schematic view of the bevel of FIG. 2 with a glass sheet disposed thereon;
FIG. 4 is an enlarged view at A of FIG. 2;
FIG. 5 is an enlarged view at B of FIG. 3;
FIG. 6 is a schematic view of two cutting blades after contact;
FIG. 7 is a schematic view of the glass sheet after it has been removed from the bevel;
FIG. 8 is a schematic view of a partial structure of a tapering apparatus according to embodiment 2;
FIG. 9 is a schematic diagram of a caching mechanism.
The figures are numbered:
1. a tapered portion; 2. a sleeve; 3. rotating the card holder; 4. a cutting mechanism; 5. cutting off the assembly; 6. a cutting blade; 7. a bevel; 8. a blade; 9. a glass sheet; 10. a telescopic element; 11. a through hole; 12. A first mounting hole; 13. a second mounting hole; 15. a conveying mechanism; 16. a first mounting bracket; 17. supporting the rollers; 18. a lifting element; 19. a caching mechanism; 20. a second mounting bracket.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 2 to 7, a method for manufacturing a preform includes the steps of:
1) placing two sleeves 2 on two coaxially arranged rotary clamping seats 3 respectively;
2) the two sleeves 2 are driven to approach each other by rotating the clamping seat 3, and the ends of the two sleeves 2 are welded together by heating the sleeves 2 through the blast burner;
3) controlling the two rotary clamping seats 3 to be away from each other, so that the welding ends of the two sleeves 2 form hollow conical parts which are connected with each other;
4) cutting off the two connected conical parts from the middle by a cutting mechanism 4;
5) the sleeve 2 is moved out of the rotary clamping seat 3, and after the conical part is cooled, the end part of the conical part is cut off, so that the end part of the conical part is provided with an opening;
6) the jacket tube 2 is acid-washed and dried, and the core rod is inserted into the jacket tube 2 so that the end of the core rod is located at the tapered structure, forming the preform.
According to the manufacturing method, when the conical part is not cooled, the two connected conical parts are cut off from the middle through the cutting mechanism 4, so that the sleeve 2 can be separated from the rotary clamping seat 3, the conical part does not need to be cooled, and the effective utilization rate of equipment can be effectively improved compared with the conventional method.
As shown in fig. 2 to 7, in this embodiment, steps 1) to 4) are implemented by a tapering apparatus, which includes:
a frame (not shown in the drawings);
the two rotary clamping seats 3 are slidably mounted on the rack and used for clamping the sleeve 2 and driving the sleeve 2 to rotate, and the rotary clamping seats 3 can reciprocate along the length direction of the base frame;
a torch (not shown) slidably mounted on the frame and capable of reciprocating along the length direction of the base frame for heating the sleeve 2; and
the cutting mechanism 4 is arranged on the frame and used for cutting off the two connected conical parts;
the cutting mechanism 4 comprises two groups of cutting components 5 which are symmetrically arranged about the axis of the rotary clamping seat 3, and the cutting components 5 comprise:
the cutting blade 6 comprises two inclined planes 7 which are obliquely intersected, and a cutting edge 8 is arranged at the intersection of the two inclined planes 7;
two glass sheets 9 respectively arranged on the two inclined surfaces 7 of the cutting blade 6, wherein the glass sheets 9 can be separated from the inclined surfaces 7; and
the telescopic element 10 is connected with the cutting blade 6 and is used for driving the cutting blade 6 to approach or depart from the cone part;
when the cutting mechanism 4 performs the cutting operation, the cutting edges 8 of the two cutting blades 6 are in contact, and the edges of the two corresponding glass sheets 9 abut against each other.
The working principle of the cutting mechanism 4 of the application is as follows: under the rotatory state of heating, two rotatory cassette 3 keep away from each other, make the hollow cone portion of two sleeve pipes 2's butt fusion end formation interconnect, then shutdown mechanism 4 work, make two cutting blade 6 through telescopic element 10, be close to each other, the operation of cutting off is accomplished in the contact of final two cutting edges 8, and the border of two corresponding glass pieces 9 supports each other and leans on each other, form the V-arrangement, the cone portion cuts the department and can be in the same place with two glass pieces 9 adhesions this moment, the rotatory cassette 3 of control is further kept away from each other, glass piece 9 breaks away from on inclined plane 7 under the drive of cone portion.
The utility model provides a shutdown mechanism 4 can cut under the cone portion high temperature state to reliably separate, finally can make sleeve pipe 2 shift out rotatory cassette 3 as early as possible, improve rotatory cassette 3's utilization efficiency.
In this embodiment, the telescopic element 10 is horizontally disposed, and the telescopic element 10 is a cylinder or an electric push rod.
In actual use, a limiting structure is arranged between the glass sheet 9 and the cutting blade 6, the limiting structure comprises a bump arranged on the cutting blade 6 and a groove arranged on the cutting blade 6, and the bump is embedded into the corresponding groove. Can carry on spacingly through the cooperation of lug and recess, prevent that glass piece 9 from dropping from inclined plane 7.
In this embodiment, as shown in fig. 6 and 7, a channel is provided on the cutting blade 6, one end of the channel extends to the inclined plane 7 to form a through hole 11, the other end of the channel is respectively connected with a first air pipe and a second air pipe, the first air pipe is used for connecting a vacuum pump to enable the glass sheet 9 to be adsorbed on the inclined plane 7 under negative pressure, and the second air pipe is used for connecting an air pump to destroy the negative pressure adsorption state of the glass sheet 9.
As shown in fig. 7, in the present embodiment, the end of the cutting blade 6 facing away from the cutting edge 8 has a first mounting hole 12 and a second mounting hole 13, the first mounting hole 12 is used for mounting a first air tube, and the second mounting hole 13 is used for mounting a second air tube.
As shown in fig. 7, in the present embodiment, the glass sheet 9 has a bump, the outer diameter of the bump is smaller than the inner diameter of the through hole 11, and the bump is inserted into the through hole 11.
This example also discloses an optical fiber obtained by drawing a preform, which is manufactured by the manufacturing method of this example.
Example 2
As shown in fig. 8, the present embodiment is different from embodiment 1 in that it further comprises a conveying mechanism 15, and the conveying mechanism 15 is used for feeding the sleeve 2 into the corresponding rotary clamping seat 3 and removing the sleeve 2 from the rotary clamping seat 3; the conveying mechanism 15 includes:
a first mounting frame 16 which is provided at one side of the frame and can move up and down;
a plurality of support rollers 17 arranged in spaced and parallel relationship, the support rollers 17 being rotatably mounted on the first mounting frame 16 for supporting and defining the sleeve 2;
a driving motor (not shown in the drawings) for driving the supporting roller 17 to rotate;
the lifting element 18 is connected with the first mounting frame 16 and used for driving the first mounting frame 16 to move up and down, the first mounting frame 16 is provided with a conveying working position and an avoiding working position, when the conveying working position is carried, the axis of the sleeve 2 placed on the supporting roller 17 is overlapped with the axis of the rotary clamping seat 3, when the avoiding working position is carried out, the first mounting frame 16 moves downwards, and when the rotary clamping seat 3 moves, the interference with the conveying mechanism 15 is avoided.
This application comes the conveying sleeve 2 through the supporting roller 17 that can adjust from top to bottom, makes sleeve 2 can convenient and fast insert rotatory cassette 3, and after processing is accomplished, also can be quick break away from not refrigerated sleeve 2 from rotatory cassette 3, for prior art, can effectively improve machining efficiency.
As shown in fig. 9, the tapering device of this embodiment further includes a buffer mechanism 19, the buffer mechanism 19 is connected to the output mechanism for receiving the processed casing 2, and the buffer mechanism 19 includes:
a second mounting bracket 20;
a plurality of spaced and parallel support rollers 17, the support rollers 17 being rotatably mounted on a second mounting bracket 20 for supporting and defining the casing 2.
The buffer means 19 enable the storage of the machined and uncooled casing 2 so as not to interfere with the engagement of a new casing 2 with the delivery means 15.
In practice, the support rollers 17 preferably have an annular groove in them which engages the side wall of the sleeve 2. The design of the annular groove enables an increased contact surface and effectively confines the cannula 2 preventing the cannula 2 from radially disengaging the delivery mechanism 15.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (10)
1. A method of making a preform comprising the steps of:
1) placing two sleeves on two coaxially arranged rotary clamping seats respectively;
2) the two sleeves are driven to approach each other by rotating the clamping seat, and the ends of the two sleeves are welded together by heating the sleeves through the blowtorch;
3) controlling the two rotary clamping seats to be far away from each other, so that the welding ends of the two sleeves form hollow conical parts which are connected with each other;
4) cutting off the two connected conical parts from the middle by a cutting mechanism;
5) removing the sleeve from the rotary clamping seat, and cutting off the end part of the conical part after the conical part is cooled to enable the end part of the conical part to be provided with an opening;
6) and (3) pickling and drying the sleeve, inserting the core rod into the sleeve, and enabling the end part of the core rod to be located at the conical structure to form the preform.
2. A method for manufacturing a preform according to claim 1, wherein the steps 1) to 4) are carried out by a tapering device comprising:
a frame;
the two rotary clamping seats are slidably mounted on the rack and used for clamping the sleeve and driving the sleeve to rotate, and the rotary clamping seats can reciprocate along the length direction of the base frame;
the blowtorch is slidably mounted on the frame, can reciprocate along the length direction of the base frame and is used for heating the sleeve; and
the cutting mechanism is arranged on the rack and is used for cutting off the two connected conical parts;
the shutdown mechanism includes two sets of subassemblies that cut off about rotatory cassette axis symmetry sets up, the subassembly that cuts off includes:
the cutting blade comprises two inclined planes which are obliquely intersected, and a blade edge is arranged at the intersection of the two inclined planes;
two glass sheets respectively arranged on the two inclined surfaces of the cutting blade, wherein the glass sheets can be separated from the inclined surfaces; and
the telescopic element is connected with the cutting blade and is used for driving the cutting blade to be close to or far away from the cone-shaped part;
when the cutting mechanism performs cutting operation, the cutting edges of the two cutting blades are contacted, and the edges of the two corresponding glass sheets are abutted against each other.
3. The preform manufacturing method of claim 2, wherein the telescopic member is horizontally disposed, and the telescopic member is a cylinder or an electric push rod.
4. The preform manufacturing method of claim 3, wherein a limiting structure is provided between the glass sheet and the cutting blade, the limiting structure comprising a bump provided on the cutting blade and a groove provided on the cutting blade, the bump being embedded in the corresponding groove.
5. The preform manufacturing method of claim 3, wherein the cutting blade is provided with a channel, one end of the channel extends to the inclined surface to form a through hole, and the other end of the channel is connected to a first gas pipe and a second gas pipe respectively, the first gas pipe is connected to a vacuum pump to enable the glass sheet to be adsorbed on the inclined surface under negative pressure, and the second gas pipe is connected to a gas pump to destroy the negative pressure adsorption state of the glass sheet.
6. The preform manufacturing method of claim 4, wherein the end of the cutting blade facing away from the cutting edge has a first mounting hole for mounting a first gas pipe and a second mounting hole for mounting a second gas pipe.
7. The preform manufacturing method of claim 6, wherein the glass sheet has a bump, an outer diameter of which is smaller than an inner diameter of the through hole, and the bump is inserted into the through hole.
8. The preform manufacturing method of claim 3, further comprising a transport mechanism for feeding the sleeves into and removing the sleeves from the corresponding rotary chucks; the conveying mechanism includes:
the first mounting frame is arranged on one side of the rack and can move up and down;
the supporting rollers are rotatably arranged on the first mounting frame and are used for supporting and limiting the sleeve;
the driving motor is used for driving the supporting roller to rotate;
the lifting element is connected with the first mounting frame and used for driving the first mounting frame to move up and down, the first mounting frame is provided with a conveying working position and an avoiding working position, the axis of the sleeve placed on the supporting roller coincides with the axis of the rotary clamping seat when the working position is conveyed, the first mounting frame moves down when the avoiding working position is carried out, and the rotary clamping seat does not interfere with the conveying mechanism when moving.
9. The preform manufacturing method of claim 8, wherein the tapering device further comprises a buffer mechanism, which is interfaced with the output mechanism for receiving the machined sleeve, the buffer mechanism comprising:
a second mounting bracket;
a plurality of spaced and parallel support rollers rotatably mounted on the second mounting bracket for supporting and defining the sleeve.
10. An optical fiber obtained by drawing a preform, the preform being produced by the method for producing a preform according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111161142.2A CN113998879B (en) | 2021-09-30 | 2021-09-30 | Manufacturing method of preform and optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111161142.2A CN113998879B (en) | 2021-09-30 | 2021-09-30 | Manufacturing method of preform and optical fiber |
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| Publication Number | Publication Date |
|---|---|
| CN113998879A true CN113998879A (en) | 2022-02-01 |
| CN113998879B CN113998879B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111161142.2A Active CN113998879B (en) | 2021-09-30 | 2021-09-30 | Manufacturing method of preform and optical fiber |
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| CN (1) | CN113998879B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403262A (en) * | 2022-08-30 | 2022-11-29 | 富通集团有限公司 | Method and equipment for processing prefabricated rod |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2119453A1 (en) * | 1991-10-15 | 1993-04-29 | Kent A. Murphy | Fused biconical taper fiber optic coupler station and fabrication techniques |
| CN102923941A (en) * | 2012-11-29 | 2013-02-13 | 长飞光纤光缆有限公司 | Method for tapering optical fiber preform |
| CN106698917A (en) * | 2017-01-09 | 2017-05-24 | 江苏斯德雷特通光光纤有限公司 | Double tapering method for preformed rod |
| CN108493750A (en) * | 2018-03-22 | 2018-09-04 | 中国人民解放军国防科技大学 | Manufacturing method of optical fiber end face pump coupler based on sleeve |
| CN109553293A (en) * | 2019-01-29 | 2019-04-02 | 江苏通鼎光棒有限公司 | A kind of preform prick-drawing device and corresponding drawing cone method |
| CN112645587A (en) * | 2020-12-07 | 2021-04-13 | 中国建筑材料科学研究总院有限公司 | Optical fiber taper and processing device and processing method thereof |
| CN113387558A (en) * | 2021-06-30 | 2021-09-14 | 杭州富通通信技术股份有限公司 | Processing technology of prefabricated rod |
-
2021
- 2021-09-30 CN CN202111161142.2A patent/CN113998879B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2119453A1 (en) * | 1991-10-15 | 1993-04-29 | Kent A. Murphy | Fused biconical taper fiber optic coupler station and fabrication techniques |
| CN102923941A (en) * | 2012-11-29 | 2013-02-13 | 长飞光纤光缆有限公司 | Method for tapering optical fiber preform |
| CN106698917A (en) * | 2017-01-09 | 2017-05-24 | 江苏斯德雷特通光光纤有限公司 | Double tapering method for preformed rod |
| CN108493750A (en) * | 2018-03-22 | 2018-09-04 | 中国人民解放军国防科技大学 | Manufacturing method of optical fiber end face pump coupler based on sleeve |
| CN109553293A (en) * | 2019-01-29 | 2019-04-02 | 江苏通鼎光棒有限公司 | A kind of preform prick-drawing device and corresponding drawing cone method |
| CN112645587A (en) * | 2020-12-07 | 2021-04-13 | 中国建筑材料科学研究总院有限公司 | Optical fiber taper and processing device and processing method thereof |
| CN113387558A (en) * | 2021-06-30 | 2021-09-14 | 杭州富通通信技术股份有限公司 | Processing technology of prefabricated rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403262A (en) * | 2022-08-30 | 2022-11-29 | 富通集团有限公司 | Method and equipment for processing prefabricated rod |
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| Publication number | Publication date |
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| CN113998879B (en) | 2023-04-25 |
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