CN105819680A - Optical fiber processing process - Google Patents
Optical fiber processing process Download PDFInfo
- Publication number
- CN105819680A CN105819680A CN201610203467.5A CN201610203467A CN105819680A CN 105819680 A CN105819680 A CN 105819680A CN 201610203467 A CN201610203467 A CN 201610203467A CN 105819680 A CN105819680 A CN 105819680A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- auxiliary rod
- heating furnace
- fiber
- processing technique
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C03B37/029—Furnaces therefor
-
- 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
- C03B37/0253—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/74—Means for moving at least a part of the draw furnace, e.g. by rotation or vertical or horizontal movement
Landscapes
- 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)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention discloses an optical fiber processing process. The optical fiber processing process comprises the following steps: 1) clamping an auxiliary rod by a chuck and controlling the chuck to be lifted up and down for enabling the lower part of a prefabricated rod to extend into a fiber drawing furnace; 2) starting the fiber drawing furnace, heating the prefabricated rod, and controlling the fiber drawing furnace to rotate in a reciprocating manner; 3) melting the prefabricated rod and drooping a drawn fiber by self gravity; 4) shaping the drooped fiber by cooling through a shaping pipe, and further cooling the fiber through a cooling pipe; and 5) coating and solidifying the cooled optical fiber to obtain an optical fiber. According to the processing process, the fiber drawing furnace is controlled to rotate in the reciprocating manner, so that the prefabricated rod can be guaranteed to be heated uniformly in a circumferential direction and the fiber drawing quality is ensured.
Description
Technical field
The present invention relates to field fiber, be specifically related to the processing technique of optical fiber.
Background technology
During optical fiber processing, including wire-drawing process, sizing refrigerating work procedure, coating operation and curing process.Existing fibre drawing furnace mainly has graphite resistor furnace, graphite induction furnace etc., during wire-drawing shape, temperature is crucial control parameter, in heating process, if prefabricated rods is heated uneven, can lead prefabricated rods each several part viscosity different, i.e. during wire-drawing shape, vitreous body viscous situation is different, under identical drawing speed, the part that heat absorption is many, temperature rise is fast, and viscosity is little, is easily generated accumulation；And it is few to absorb heat, the part that temperature rise is slow, meeting molding is not enough, this results in the ovality on same cross section of the silk after molding poor, and the string diameter in the range of certain length is inconsistent more serious.
Existing fibre drawing furnace is fixed, it is difficult to ensure that Glass rod and the axiality of burner hearth, still there will be prefabricated rods and along the circumferential direction heats uneven phenomenon, brings the biggest difficulty to drawing process operation；And because prefabricated rods and the material behavior of auxiliary rod, operationally, the light of heating element heater can be spread out of fibre drawing furnace by prefabricated rods and auxiliary rod, and this not only wastes heat energy, also causes production environment temperature higher, the most severe.
Summary of the invention
The present invention is directed to the problems referred to above, overcome at least one not enough, it is proposed that the processing technique of a kind of optical fiber.
The technical scheme that the present invention takes is as follows:
The processing technique of a kind of optical fiber, comprises the following steps:
1) with chuck, auxiliary rod is clamped, control chuck lifting, make the bottom of prefabricated rods stretch in fiber drawing furnace；
2) fiber drawing furnace work, heats prefabricated rods, controls fiber drawing furnace reciprocating rotation simultaneously；
3) prefabricated rods melts, and relies on the sagging wire drawing of self gravitation；
4) sagging silk thread first passes through calibration tube cooling sizing, and the rear cooling tube that passes through cools down further；
5) optical fiber after cooling is coated and after curing process, obtains optical fiber.
This processing technique is by controlling fiber drawing furnace reciprocating rotation, it is possible to ensures prefabricated rods along the circumferential direction homogeneous heating, thus ensures wire drawing quality.
Optionally, described step 1) in prefabricated rods be fused into one with auxiliary rod by flame, and the diameter of prefabricated rods is more than the diameter of auxiliary rod, has an arc-shaped transition section between prefabricated rods and auxiliary rod；Before auxiliary rod being clamped with chuck, first a glass sock is set in arc-shaped transition section by auxiliary rod, then copper telescopic is set on auxiliary rod；Described glass sock includes diapire and columned sidewall, and the external diameter of the columned sidewall of glass sock is identical with the external diameter of prefabricated rods, and the diapire of glass sock has first through hole passed for auxiliary rod；Described copper telescopic one end is closed, the upper surface of copper sleeve pipe one end and glass sock close against, the other end and with the upper surface of auxiliary rod against.
The external diameter of glass sock cylindrical sidewalls is identical with the external diameter of prefabricated rods, and this structure is prevented from, because arc-shaped transition section causes prefabricated rods to become big with the gap of fiber drawing furnace import department, causing the problem that air enters heating furnace in a large number；Light can either be reflected into heating furnace by arranging copper telescopic, again can the auxiliary rod of adaptive different lengths.
Optionally, described copper telescoping tube includes multiple telescopic section, and wherein, the telescopic section of top side has second through hole suitable with auxiliary rod fabrication hole.
Optionally, it is filled with reflecting layer inside described glass sock.
The light passed from prefabricated rods and auxiliary rod can be reflected back by arranging reflecting layer, thus improve the efficiency of heating surface, improve processing environment.
Optionally, described reflecting layer is made up of metal.
Optionally, described step 2) in fiber drawing furnace include:
Fixing seat；
Heating furnace body, lower rotation is arranged on fixing seat, is provided with cooling water cavity in heating furnace body；
Drive mechanism, drives described heating furnace body to carry out back rotation along own axes direction；
Water inlet pipe, the bottom through heating furnace body with described cooling water cavity connects；
Outlet pipe, the top through heating furnace body with described cooling water cavity connects.
Optionally, the lateral wall of described heating furnace body is provided with two and is positioned at the lower section of water inlet pipe for the spacing ring supporting water pipe, one of them spacing ring, and another spacing ring is positioned at the lower section of outlet pipe.
The winding of water inlet pipe and outlet pipe can be facilitated, it is ensured that the reliable reciprocating rotation of heating furnace body by arranging spacing ring.
Optionally, described heating furnace body is coordinated with fixing seat by bearing, and wherein, heating furnace is relatively fixed with the inner ring of bearing, and support is relatively fixed with the outer ring of bearing.
Optionally, described drive mechanism drives heating furnace body to rotate by gear train or transmission band.
The invention has the beneficial effects as follows: this processing technique is by controlling fiber drawing furnace reciprocating rotation, it is possible to ensures prefabricated rods along the circumferential direction homogeneous heating, thus ensures wire drawing quality；The setting of glass sock and copper telescopic can reflect light back into heating furnace, not only improves energy utilization rate, also improves working environment.
Accompanying drawing illustrates:
Fig. 1 is the flow chart of the processing technique of optical fiber of the present invention；
Fig. 2 is schematic diagram during fiber drawing furnace work；
Fig. 3 is the enlarged drawing in Fig. 2 at A；
Fig. 4 is the structural representation of copper telescopic；
Fig. 5 is the structural representation of glass sock.
In figure, each reference is:
1, fixing seat, 2, bearing, 3, spacing ring, 4, water inlet pipe, 5, prefabricated rods, 6, arc-shaped transition section, 7, glass sock, 8, copper telescopic, 9, auxiliary rod, 10, heating furnace body, 11, outlet pipe, 12, drive mechanism, 13, reflecting layer, 14, telescopic section, the 15, second through hole, 16, columned sidewall, the 17, first through hole, 18, cooling water cavity.
Detailed description of the invention:
Below in conjunction with each accompanying drawing, the present invention is described in detail.
As it is shown in figure 1, present embodiment discloses the processing technique of a kind of optical fiber, comprise the following steps:
1) with chuck, auxiliary rod is clamped, control chuck lifting, make the bottom of prefabricated rods stretch in fiber drawing furnace；
2) fiber drawing furnace work, heats prefabricated rods, controls fiber drawing furnace reciprocating rotation simultaneously；
3) prefabricated rods melts, and relies on the sagging wire drawing of self gravitation；
4) sagging silk thread first passes through calibration tube cooling sizing, and the rear cooling tube that passes through cools down further；
5) optical fiber after cooling is coated and after curing process, obtains optical fiber.
This processing technique is by controlling fiber drawing furnace reciprocating rotation, it is possible to ensures prefabricated rods along the circumferential direction homogeneous heating, thus ensures wire drawing quality.
Such as Fig. 2, shown in 4 and 5, in the present embodiment, step 1) in prefabricated rods 5 be fused into one with auxiliary rod 9 by flame, and the diameter of prefabricated rods 5 is more than the diameter of auxiliary rod 9, has an arc-shaped transition section 6 between prefabricated rods and auxiliary rod；Before auxiliary rod being clamped with chuck, first a glass sock 7 is set in arc-shaped transition section by auxiliary rod, then copper telescopic 8 is set on auxiliary rod 9；Glass sock includes diapire and columned sidewall 16, and the external diameter of the columned sidewall of glass sock is identical with the external diameter of prefabricated rods, and the diapire of glass sock has first through hole 17 passed for auxiliary rod；Copper telescopic 8 one end is closed, the upper surface of copper sleeve pipe 8 one end and glass sock 7 close against, the other end and with the upper surface of auxiliary rod against.The external diameter of glass sock cylindrical sidewalls is identical with the external diameter of prefabricated rods, and this structure is prevented from, because arc-shaped transition section causes prefabricated rods to become big with the gap of fiber drawing furnace import department, causing the problem that air enters heating furnace in a large number；Light can either be reflected into heating furnace by arranging copper telescopic, again can the auxiliary rod of adaptive different lengths.
As shown in Figure 4, in the present embodiment, copper telescoping tube 8 includes multiple telescopic section 14, and wherein, the telescopic section of top side has second through hole 15 suitable with auxiliary rod fabrication hole.
As it is shown on figure 3, in the present embodiment, glass sock 7 is internal is filled with reflecting layer 13, and preferred reflecting layer can be made up of metal.The light passed from prefabricated rods and auxiliary rod can be reflected back by arranging reflecting layer, thus improve the efficiency of heating surface, improve processing environment..
As in figure 2 it is shown, in the present embodiment, step 2) in fiber drawing furnace include:
Fixing seat 1；
Heating furnace body 10, lower rotation is arranged on fixing seat, is provided with cooling water cavity 18 in heating furnace body；
Drive mechanism 12, drives heating furnace body to carry out back rotation along own axes direction；
Water inlet pipe 4, the bottom through heating furnace body with cooling water cavity 18 connects；
Outlet pipe 11, the top through heating furnace body with cooling water cavity 18 connects.
In the present embodiment, the lateral wall of heating furnace body 10 is provided with two and is positioned at the lower section of water inlet pipe for the spacing ring 3 supporting water pipe, one of them spacing ring, and another spacing ring is positioned at the lower section of outlet pipe.The winding of water inlet pipe and outlet pipe can be facilitated, it is ensured that the reliable reciprocating rotation of heating furnace body by arranging spacing ring.
In the present embodiment, heating furnace body 10 is coordinated with fixing seat 1 by bearing 2, and wherein, heating furnace is relatively fixed with the inner ring of bearing, and support is relatively fixed with the outer ring of bearing.
In the present embodiment, drive mechanism 12 drives heating furnace body to rotate by gear train or transmission band.
The foregoing is only the preferred embodiments of the present invention; the most i.e. limit the scope of patent protection of the present invention; the equivalent structure transformation that every utilization description of the invention and accompanying drawing content are made; directly or indirectly it is used in other relevant technical fields, the most in like manner includes within the scope of the present invention.
Claims (9)
1. the processing technique of an optical fiber, it is characterised in that comprise the following steps:
1) with chuck, auxiliary rod is clamped, control chuck lifting, make the bottom of prefabricated rods stretch in fiber drawing furnace；
2) fiber drawing furnace work, heats prefabricated rods, controls fiber drawing furnace reciprocating rotation simultaneously；
3) prefabricated rods melts, and relies on the sagging wire drawing of self gravitation；
4) sagging silk thread first passes through calibration tube cooling sizing, and the rear cooling tube that passes through cools down further；
5) optical fiber after cooling is coated and after curing process, obtains optical fiber.
2. the processing technique of optical fiber as claimed in claim 1, it is characterized in that, described step 1) in prefabricated rods and auxiliary rod be fused into one by flame, and the diameter of prefabricated rods is more than the diameter of auxiliary rod, has an arc-shaped transition section between prefabricated rods and auxiliary rod；Before auxiliary rod being clamped with chuck, first a glass sock is set in arc-shaped transition section by auxiliary rod, then copper telescopic is set on auxiliary rod；Described glass sock includes diapire and columned sidewall, and the external diameter of the columned sidewall of glass sock is identical with the external diameter of prefabricated rods, and the diapire of glass sock has first through hole passed for auxiliary rod；Described copper telescopic one end is closed, the upper surface of copper sleeve pipe one end and glass sock close against, the other end and with the upper surface of auxiliary rod against.
3. the processing technique of optical fiber as claimed in claim 2, it is characterised in that described copper telescoping tube includes multiple telescopic section, and wherein, the telescopic section of top side has second through hole suitable with auxiliary rod fabrication hole.
4. the processing technique of optical fiber as claimed in claim 2, it is characterised in that be filled with reflecting layer inside described glass sock.
5. the processing technique of optical fiber as claimed in claim 4, it is characterised in that described reflecting layer is made up of metal.
6. the processing technique of optical fiber as claimed in claim 1, it is characterised in that described step 2) in fiber drawing furnace include:
Fixing seat；
Heating furnace body, lower rotation is arranged on fixing seat, is provided with cooling water cavity in heating furnace body；
Drive mechanism, drives described heating furnace body to carry out back rotation along own axes direction；
Water inlet pipe, the bottom through heating furnace body with described cooling water cavity connects；
Outlet pipe, the top through heating furnace body with described cooling water cavity connects.
7. the processing technique of optical fiber as claimed in claim 6, it is characterised in that the lateral wall of described heating furnace body is provided with two and is positioned at the lower section of water inlet pipe for the spacing ring supporting water pipe, one of them spacing ring, and another spacing ring is positioned at the lower section of outlet pipe.
8. the processing technique of optical fiber as claimed in claim 6, it is characterised in that described heating furnace body is coordinated with fixing seat by bearing, and wherein, heating furnace is relatively fixed with the inner ring of bearing, and support is relatively fixed with the outer ring of bearing.
9. the processing technique of optical fiber as claimed in claim 6, it is characterised in that described drive mechanism drives heating furnace body to rotate by gear train or transmission band.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810182665.7A CN108383372B (en) | 2016-03-31 | 2016-03-31 | Optical fiber processing technology |
| CN201610203467.5A CN105819680B (en) | 2016-03-31 | 2016-03-31 | The processing technology of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203467.5A CN105819680B (en) | 2016-03-31 | 2016-03-31 | The processing technology of optical fiber |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810182665.7A Division CN108383372B (en) | 2016-03-31 | 2016-03-31 | Optical fiber processing technology |
Publications (2)
| Publication Number | Publication Date |
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| CN105819680A true CN105819680A (en) | 2016-08-03 |
| CN105819680B CN105819680B (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610203467.5A Active CN105819680B (en) | 2016-03-31 | 2016-03-31 | The processing technology of optical fiber |
| CN201810182665.7A Active CN108383372B (en) | 2016-03-31 | 2016-03-31 | Optical fiber processing technology |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810182665.7A Active CN108383372B (en) | 2016-03-31 | 2016-03-31 | Optical fiber processing technology |
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| CN (2) | CN105819680B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018145519A1 (en) * | 2017-02-07 | 2018-08-16 | 通鼎互联信息股份有限公司 | Automatic drawing apparatus for optical fiber preform and automatic drawing method |
| CN109574492A (en) * | 2019-01-21 | 2019-04-05 | 苏州赛森电子科技有限公司 | A kind of PCVD wire drawing clamping device and method |
| CN110357412A (en) * | 2019-07-29 | 2019-10-22 | 富通集团有限公司 | The manufacturing process of optical fiber |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819680B (en) * | 2016-03-31 | 2018-05-11 | 杭州富通通信技术股份有限公司 | The processing technology of optical fiber |
| CN112624601A (en) * | 2020-12-04 | 2021-04-09 | 飞秒光电科技(西安)有限公司 | Preparation method and preparation device for optical communication cylindrical lens wire diameter |
| CN113788613B (en) * | 2021-11-16 | 2022-02-15 | 成都中住光纤有限公司 | Optical fiber preparation system and method |
| EP4197977A1 (en) * | 2021-12-08 | 2023-06-21 | Heraeus Quartz North America LLC | Inductive furnace with rotating susceptor for high precision waveguide glass draw |
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| TW201296B (en) * | 1991-07-26 | 1993-03-01 | Sumitomo Electric Industries | |
| CN1096013A (en) * | 1993-02-22 | 1994-12-07 | 住友电气工业株式会社 | The method for flame abrasion of glass preform |
| CN101767930A (en) * | 2010-02-05 | 2010-07-07 | 中天科技光纤有限公司 | High-speed wire drawing device for optical fiber production process and high-speed wire drawing method thereof |
| CN105198202A (en) * | 2014-06-12 | 2015-12-30 | 上海亨通光电科技有限公司 | Method for manufacturing spun optical fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR1496223A (en) * | 1966-08-19 | 1967-09-29 | Saint Gobain | Process and device for the manufacture of so-called fibers |
| JPH11130455A (en) * | 1997-10-29 | 1999-05-18 | Yazaki Corp | Drawing device for optical fiber preform and drawing method using the same |
| US6701753B2 (en) * | 2001-02-11 | 2004-03-09 | Fitel Usa Corp. | Method and apparatus for making improved optical fiber preforms and optical fiber therefrom |
| CN203728719U (en) * | 2014-03-14 | 2014-07-23 | 长飞光纤光缆股份有限公司 | Sealing device for fiber drawing furnace |
| CN105819680B (en) * | 2016-03-31 | 2018-05-11 | 杭州富通通信技术股份有限公司 | The processing technology of optical fiber |
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2016
- 2016-03-31 CN CN201610203467.5A patent/CN105819680B/en active Active
- 2016-03-31 CN CN201810182665.7A patent/CN108383372B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201296B (en) * | 1991-07-26 | 1993-03-01 | Sumitomo Electric Industries | |
| CN1096013A (en) * | 1993-02-22 | 1994-12-07 | 住友电气工业株式会社 | The method for flame abrasion of glass preform |
| CN101767930A (en) * | 2010-02-05 | 2010-07-07 | 中天科技光纤有限公司 | High-speed wire drawing device for optical fiber production process and high-speed wire drawing method thereof |
| CN105198202A (en) * | 2014-06-12 | 2015-12-30 | 上海亨通光电科技有限公司 | Method for manufacturing spun optical fiber |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018145519A1 (en) * | 2017-02-07 | 2018-08-16 | 通鼎互联信息股份有限公司 | Automatic drawing apparatus for optical fiber preform and automatic drawing method |
| CN109574492A (en) * | 2019-01-21 | 2019-04-05 | 苏州赛森电子科技有限公司 | A kind of PCVD wire drawing clamping device and method |
| CN109574492B (en) * | 2019-01-21 | 2023-08-08 | 苏州赛森电子科技有限公司 | Clamping device and method for PCVD wire drawing |
| CN110357412A (en) * | 2019-07-29 | 2019-10-22 | 富通集团有限公司 | The manufacturing process of optical fiber |
| CN110357412B (en) * | 2019-07-29 | 2021-08-31 | 富通集团有限公司 | Process for manufacturing optical fiber |
| CN113354275A (en) * | 2019-07-29 | 2021-09-07 | 富通集团有限公司 | Auxiliary device for optical fiber manufacturing |
| CN113354275B (en) * | 2019-07-29 | 2023-03-31 | 富通集团有限公司 | Auxiliary device for optical fiber manufacturing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108383372A (en) | 2018-08-10 |
| CN105819680B (en) | 2018-05-11 |
| CN108383372B (en) | 2020-08-21 |
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