CN105819680B - The processing technology of optical fiber - Google Patents
The processing technology of optical fiber Download PDFInfo
- Publication number
- CN105819680B CN105819680B CN201610203467.5A CN201610203467A CN105819680B CN 105819680 B CN105819680 B CN 105819680B CN 201610203467 A CN201610203467 A CN 201610203467A CN 105819680 B CN105819680 B CN 105819680B
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- CN
- China
- Prior art keywords
- optical fiber
- auxiliary rod
- prefabricated rods
- processing technology
- heating furnace
- 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 a kind of processing technology of optical fiber, comprise the following steps：1) auxiliary rod is clamped with chuck, control chuck lifting, makes the lower part of prefabricated rods stretch into fiber drawing furnace；2) fiber drawing furnace works, and heats prefabricated rods, while control fiber drawing furnace reciprocating rotation；3) prefabricated rods melt, by the sagging wire drawing of self gravitation；4) sagging silk thread first pass through calibration tube cooling sizing, after further cooled down by cooling tube；5) optical fiber after cooling is coated and curing process after, obtain optical fiber.This processing technology can ensure prefabricated rods along the circumferential direction homogeneous heating by controlling fiber drawing furnace reciprocating rotation, so as to ensure wire drawing quality.
Description
Technical field
The present invention relates to field fiber, and in particular to the processing technology of optical fiber.
Background technology
During optical fiber processing, including wire-drawing process, sizing refrigerating work procedure, coating process and curing process.Existing optical fiber
Fiber drawing furnace mainly has graphite resistor furnace, graphite induction furnace etc., and during wire-drawing shape, temperature is crucial control parameter, is being added
In thermal process, if prefabricated rods uneven heating is even, prefabricated rods each several part viscosity difference, i.e., the glass during wire-drawing shape can be led
The viscous situation of body is different, and under identical drawing speed, more part of absorbing heat, temperature rise is fast, and viscosity is small, is also easy to produce accumulation；And inhale
Heat is few, and the slow part of temperature rise, can be molded deficiency, this results in ovality of the silk after shaping on same section is poor, and
String diameter in the range of certain length is inconsistent more serious.
Existing fibre drawing furnace is fixed, it is difficult to ensure that the concentricity of glass bar and burner hearth, still occurs prefabricated
Rod along the circumferential direction heats non-uniform phenomenon, and very big difficulty is brought to drawing process operation；And because prefabricated rods with it is auxiliary
The material property of rod is helped, at work, the light of heating element can be spread out of fibre drawing furnace by prefabricated rods and auxiliary rod, this is not
Thermal energy is only wasted, also causes production environment temperature higher, it is relatively more severe.
The content of the invention
The present invention is in view of the above-mentioned problems, overcome at least one deficiency, it is proposed that a kind of processing technology of optical fiber.
The technical solution that the present invention takes is as follows：
A kind of processing technology of optical fiber, comprises the following steps：
1) auxiliary rod is clamped with chuck, control chuck lifting, makes the lower part of prefabricated rods stretch into fiber drawing furnace；
2) fiber drawing furnace works, and heats prefabricated rods, while control fiber drawing furnace reciprocating rotation；
3) prefabricated rods melt, by the sagging wire drawing of self gravitation；
4) sagging silk thread first pass through calibration tube cooling sizing, after further cooled down by cooling tube；
5) optical fiber after cooling is coated and curing process after, obtain optical fiber.
This processing technology can ensure prefabricated rods along the circumferential direction homogeneous heating by controlling fiber drawing furnace reciprocating rotation, from
And ensure wire drawing quality.
Optionally, the prefabricated rods in the step 1) and auxiliary rod are integral by flame welding, and the diameter of prefabricated rods
More than the diameter of auxiliary rod, there is an arc-shaped transition section between prefabricated rods and auxiliary rod；Before with chuck, auxiliary rod is clamped,
First a glass sock is set in arc-shaped transition section by auxiliary rod, then copper telescopic is set on auxiliary rod；The glass
Glass set includes bottom wall and columned side wall, and the outside diameter of the columned side wall of glass sock is identical with the outside diameter of prefabricated rods, glass
There is a first through hole passed through for auxiliary rod on the bottom wall of set；Copper telescopic one end closing, copper telescopic one end
With the upper surface of glass sock against, other end closing and with the upper surface of auxiliary rod against.
The outside diameter of glass sock cylindrical sidewalls is identical with the outside diameter of prefabricated rods, and this structure can be prevented because arc-shaped transition
The problem of section causes the gap of prefabricated rods and fiber drawing furnace entrance to become larger, causes air largely to enter heating furnace；By setting copper
Light can either be reflected into heating furnace by telescopic processed, and can be adapted to the auxiliary rod of different lengths.
Optionally, the copper telescopic includes multiple telescopic segments, wherein, the telescopic segment of top side has and auxiliary rod work
The second through hole that skill hole is adapted.
Optionally, it is filled with reflecting layer inside the glass sock.
By setting reflecting layer to reflect back the light being pierced by from prefabricated rods and auxiliary rod, so as to improve heating effect
Rate, improves processing environment.
Optionally, the reflecting layer is made of metal.
Optionally, the fiber drawing furnace in the step 2) includes：
Fixed seat；
Heating furnace body, lower rotation are installed in fixed seat, and cooling water cavity is equipped with heating furnace body；
Driving mechanism, drives the heating furnace body to carry out back rotation along own axes direction；
Water inlet pipe, connects through heating furnace body with the lower part of the cooling water cavity；
Outlet pipe, connects through heating furnace body with the top of the cooling water cavity.
Optionally, the lateral wall of the heating furnace body is equipped with two spacing rings for being used to support water pipe, one of them is spacing
Ring is located at the lower section of water inlet pipe, another spacing ring is located at the lower section of outlet pipe.
By setting spacing ring to facilitate the winding of water inlet pipe and outlet pipe, ensure the reliable reciprocating rotary of heating furnace body
It is dynamic.
Optionally, the heating furnace body is coordinated by bearing and fixed seat, wherein, heating furnace is opposite with the inner ring of bearing solid
Fixed, the outer ring of fixed seat and bearing is relatively fixed.
Optionally, the driving mechanism drives heating furnace body to rotate by gear set or transmission belt.
The beneficial effects of the invention are as follows：This processing technology can ensure prefabricated rods edge by controlling fiber drawing furnace reciprocating rotation
Circumferencial direction homogeneous heating, so as to ensure wire drawing quality；The setting of glass sock and copper telescopic, which can reflect light back into, to be added
Hot stove, not only improves energy utilization rate, also improves working environment.
Brief description of the drawings：
Fig. 1 is the flow chart of the processing technology of optical fiber of the present invention；
Schematic diagram when Fig. 2 is fiber drawing furnace work；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is the structure diagram of copper telescopic；
Fig. 5 is the structure diagram of glass sock.
Each reference numeral is in figure：
1st, fixed seat, 2, bearing, 3, spacing ring, 4, water inlet pipe, 5, prefabricated rods, 6, arc-shaped transition section, 7, glass sock, 8, copper
Telescopic processed, 9, auxiliary rod, 10, heating furnace body, 11, outlet pipe, 12, driving mechanism, 13, reflecting layer, 14, telescopic segment, 15,
Two through holes, 16, columned side wall, 17, first through hole, 18, cooling water cavity.
Embodiment：
With reference to each attached drawing, the present invention is described in detail.
As shown in Figure 1, present embodiment discloses a kind of processing technology of optical fiber, comprise the following steps：
1) auxiliary rod is clamped with chuck, control chuck lifting, makes the lower part of prefabricated rods stretch into fiber drawing furnace；
2) fiber drawing furnace works, and heats prefabricated rods, while control fiber drawing furnace reciprocating rotation；
3) prefabricated rods melt, by the sagging wire drawing of self gravitation；
4) sagging silk thread first pass through calibration tube cooling sizing, after further cooled down by cooling tube；
5) optical fiber after cooling is coated and curing process after, obtain optical fiber.
This processing technology can ensure prefabricated rods along the circumferential direction homogeneous heating by controlling fiber drawing furnace reciprocating rotation, from
And ensure wire drawing quality.
As shown in Fig. 2,4 and 5, in this present embodiment, the prefabricated rods 5 in step 1) are fused into auxiliary rod 9 by flame
One, 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 with chuck, auxiliary rod is clamped, first a glass sock 7 is set in arc-shaped transition section by auxiliary rod, then copper is stretched
Set 8 is set on auxiliary rod 9；Glass sock includes bottom wall and columned side wall 16, the outside diameter of the columned side wall of glass sock
It is identical with the outside diameter of prefabricated rods, there is a first through hole 17 passed through for auxiliary rod on the bottom wall of glass sock；Copper telescopic 8 one
End seal is closed, the upper surface of 8 one end of copper telescopic and glass sock 7 against, other end closing and with the upper surface of auxiliary rod against.
The outside diameter of glass sock cylindrical sidewalls is identical with the outside diameter of prefabricated rods, and this structure can prevent from causing because of arc-shaped transition section pre-
The problem of rod processed and the gap of fiber drawing furnace entrance become larger, cause air largely to enter heating furnace；By setting copper telescopic
Light can either be reflected into heating furnace, and the auxiliary rod of different lengths can be adapted to.
As shown in figure 4, in this present embodiment, copper telescopic 8 includes multiple telescopic segments 14, wherein, top side is stretched
Section has the second through hole 15 being adapted with auxiliary rod fabrication hole.
As shown in figure 3, in this present embodiment, the inside of glass sock 7 is filled with reflecting layer 13, and preferable reflecting layer can be by gold
Belong to and forming.By setting reflecting layer to reflect back the light being pierced by from prefabricated rods and auxiliary rod, so as to improve heating effect
Rate, improves processing environment..
As shown in Fig. 2, in this present embodiment, the fiber drawing furnace in step 2) includes：
Fixed seat 1；
Heating furnace body 10, lower rotation are installed in fixed seat, and cooling water cavity 18 is equipped with heating furnace body；
Driving mechanism 12, driving heating furnace body carry out back rotation along own axes direction；
Water inlet pipe 4, connects through heating furnace body with the lower part of cooling water cavity 18；
Outlet pipe 11, connects through heating furnace body with the top of cooling water cavity 18.
In this present embodiment, the lateral wall of heating furnace body 10 is equipped with two spacing rings 3 for being used to support water pipe, one of them
Spacing ring is located at the lower section of water inlet pipe, another spacing ring is located at the lower section of outlet pipe.By set spacing ring can facilitate into
The winding of water pipe and outlet pipe, ensures the reliable reciprocating rotation of heating furnace body.
In this present embodiment, heating furnace body 10 is coordinated by bearing 2 and fixed seat 1, wherein, the inner ring of heating furnace and bearing
It is relatively fixed, the outer ring of fixed seat and bearing is relatively fixed.
In this present embodiment, driving mechanism 12 drives heating furnace body to rotate by gear set or transmission belt.
The foregoing is merely the preferred embodiment of the present invention, not thereby limits the scope of patent protection of the present invention, all
It is the equivalent structure transformation made with description of the invention and accompanying drawing content, is directly or indirectly used in other relevant technologies
Field, similarly includes within the scope of the present invention.
Claims (8)
1. a kind of processing technology of optical fiber, it is characterised in that comprise the following steps：
1) auxiliary rod is clamped with chuck, control chuck lifting, makes the lower part of prefabricated rods stretch into fiber drawing furnace；
2) fiber drawing furnace works, and heats prefabricated rods, while control fiber drawing furnace reciprocating rotation；
3) prefabricated rods melt, by the sagging wire drawing of self gravitation；
4) sagging silk thread first pass through calibration tube cooling sizing, after further cooled down by cooling tube；
5) optical fiber after cooling is coated and curing process after, obtain optical fiber；
Prefabricated rods and auxiliary rod in the step 1) are integral by flame welding, and the diameter of prefabricated rods is more than auxiliary rod
Diameter, has an arc-shaped transition section between prefabricated rods and auxiliary rod；Before with chuck, auxiliary rod is clamped, first by a glass sock
It is set in by auxiliary rod in arc-shaped transition section, then copper telescopic is set on auxiliary rod；The glass sock includes bottom wall
And columned side wall, the outside diameter of the columned side wall of glass sock is identical with the outside diameter of prefabricated rods, has on the bottom wall of glass sock
There is a first through hole passed through for auxiliary rod；The closing of described copper telescopic one end, copper telescopic one end and glass sock it is upper
Surface against the closing of, the other end and with the upper surface of auxiliary rod against.
2. the processing technology of optical fiber as claimed in claim 1, it is characterised in that the copper telescopic includes multiple flexible
Section, wherein, the telescopic segment of top side has the second through hole being adapted with auxiliary rod fabrication hole.
3. the processing technology of optical fiber as claimed in claim 1, it is characterised in that be filled with reflecting layer inside the glass sock.
4. the processing technology of optical fiber as claimed in claim 3, it is characterised in that the reflecting layer is made of metal.
5. the processing technology of optical fiber as claimed in claim 1, it is characterised in that the fiber drawing furnace in the step 2) includes：
Fixed seat；
Heating furnace body, lower rotation are installed in fixed seat, and cooling water cavity is equipped with heating furnace body；
Driving mechanism, drives the heating furnace body to carry out back rotation along own axes direction；
Water inlet pipe, connects through heating furnace body with the lower part of the cooling water cavity；
Outlet pipe, connects through heating furnace body with the top of the cooling water cavity.
6. the processing technology of optical fiber as claimed in claim 5, it is characterised in that the lateral wall of the heating furnace body is equipped with two
The spacing ring of water pipe is used to support, one of spacing ring is located at the lower section of water inlet pipe, another spacing ring is located at outlet pipe
Lower section.
7. the processing technology of optical fiber as claimed in claim 5, it is characterised in that the heating furnace body passes through bearing and fixed seat
Coordinate, wherein, the inner ring of heating furnace and bearing is relatively fixed, and the outer ring of fixed seat and bearing is relatively fixed.
8. the processing technology of optical fiber as claimed in claim 5, it is characterised in that the driving mechanism passes through gear set or transmission
Band driving heating furnace body rotates.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203467.5A CN105819680B (en) | 2016-03-31 | 2016-03-31 | The processing technology of optical fiber |
| CN201810182665.7A CN108383372B (en) | 2016-03-31 | 2016-03-31 | Optical fiber processing technology |
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 |
|---|---|
| CN105819680A CN105819680A (en) | 2016-08-03 |
| CN105819680B true 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 |
|---|---|---|---|
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383372A (en) * | 2016-03-31 | 2018-08-10 | 杭州富通通信技术股份有限公司 | The processing technology of optical fiber |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810065B (en) * | 2017-02-07 | 2020-01-10 | 通鼎互联信息股份有限公司 | Automatic fiber drawing device and automatic fiber drawing method for optical fiber preform |
| 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 |
| CN110357412B (en) * | 2019-07-29 | 2021-08-31 | 富通集团有限公司 | Process for manufacturing 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
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 |
|---|---|---|---|---|
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383372A (en) * | 2016-03-31 | 2018-08-10 | 杭州富通通信技术股份有限公司 | The processing technology of optical fiber |
| CN108383372B (en) * | 2016-03-31 | 2020-08-21 | 杭州富通通信技术股份有限公司 | Optical fiber processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108383372B (en) | 2020-08-21 |
| CN105819680A (en) | 2016-08-03 |
| CN108383372A (en) | 2018-08-10 |
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