CN104291677A - Optical fiber drawing furnace - Google Patents
Optical fiber drawing furnace Download PDFInfo
- Publication number
- CN104291677A CN104291677A CN201410488255.7A CN201410488255A CN104291677A CN 104291677 A CN104291677 A CN 104291677A CN 201410488255 A CN201410488255 A CN 201410488255A CN 104291677 A CN104291677 A CN 104291677A
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- CN
- China
- Prior art keywords
- fixedly connected
- extension tube
- heater
- drawing furnace
- arm
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- 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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- 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
- C03B37/03—Drawing means, e.g. drawing drums ; Traction or tensioning devices
- C03B37/032—Drawing means, e.g. drawing drums ; Traction or tensioning devices for glass optical fibres
Abstract
The invention discloses an optical fiber drawing furnace, comprising a furnace roof gaseous disk, a furnace body, a middle sleeve, a heat preservation body, a heating body and an extension pipe, wherein the extension pipe adopts an extension pipe device of which sectional branch pipes are connected with each other; the lower surface of the furnace body is fixedly connected with an air-tight device; the extension pipe device is arranged at the lower end of the air-tight device; and the upper end of the extension pipe device is also fixedly connected with an elastic device. According to the optical fiber drawing furnace, a limiting switch is also fixedly connected below the air-tight device; and when the elastic device is connected with the air-tight device, the elastic device can timely stop when exceeding the position; and therefore, the optical fiber drawing furnace has the advantages of being low in manufacturing cost, simple in structure, free of late tedious maintenance, and long in service life.
Description
Technical field
The present invention relates to heat treatment process equipment technical field, particularly a kind of fibre drawing furnace.
Background technology
Fibre drawing furnace is the end by heating and melt preform, moves down preform simultaneously, draws the optical fiber silk being drawn into certain diameter, thus obtain optical fiber at the end of preform with certain speed; What mainly use in current fiber drawing process is exactly top gas dish, body of heater and extension tube, but current extension tube design is unreasonable, a just simple mono-tube design, extremely not there is movability, reactivity, inconvenience is brought to maintenance process simulation, and the length of extension tube also cannot regulate, can not meet producing of present high standard high request, so need a kind of technology not enough to make up this on the market.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of fibre drawing furnace, this fibre drawing furnace, simple structure, easy to use and can reactivity and movability greatly.
For solving the problems of the technologies described above the technical solution adopted in the present invention be: a kind of fibre drawing furnace, comprise: top gas dish, body of heater, middle sleeve, thermal insulator, heating element, extension tube, described top gas dish is fixedly connected on body of heater upper surface center position, described middle sleeve is fixedly connected on the RC y-axis direction of body of heater in the mode running through body of heater, described heating element is coated on the outer round surface of middle sleeve, one layer of heat preservation body is provided with between described heating element and body of heater, thermal insulator and body of heater and heating element are not in contact with each other each other, described extension tube is fixedly connected on body of heater lower surface, be connected with middle sleeve, its innovative point is: the extension tube device that described extension tube adopts sectional type arm interconnection, described body of heater lower surface is fixedly connected with an obturator, described extension tube device is arranged on obturator lower end, described extension tube device upper end is also fixedly connected with an elastic device.
The concrete structure of further described obturator is: comprise cylinder, airtight cover and housing, and the inboardend of described cylinder is connected with the inside right side wall of housing, and the movable end of described cylinder is connected with airtight cover, and described airtight cover is movably connected in housing simultaneously.
The concrete structure of further described elastic device is: comprise bearing, spring and adjustable pipe, and described adjustable pipe main body is the tubing of hollow, and the position of adjustable pipe lower end 1/3 is provided with groove; Described support body is the tubing of hollow, and on cylindrical one end, global formation has the first flange, and the other end is then provided with recess groove, and the first described flange is evenly equipped with N >=4 the first threaded hole, and the position of described bearing internal chamber lower end 1/3 is provided with rectangular tank; Described adjustable pipe is slidably connected in the chamber of bearing; Described spring is arranged on the groove of adjustable pipe, and is placed in the rectangular tank of bearing.
The concrete structure of further described extension tube device is: comprise arm, support, base, telescopic cylinder, rotary cylinder and branch pipe connection; The lower surface of described arm is fixedly connected with branch pipe connection; The side of described arm is fixedly connected with support; The arm of described formation extension tube device, support and branch pipe connection are N >=2, adopt the mode of superposition mutually to combine, and are fixedly connected on telescopic cylinder; Rotary cylinder is fixedly connected with under described telescopic cylinder; Described rotary cylinder is fixedly connected with base.
The concrete structure of further described arm is: comprise quartz column, graphite linings and stainless steel tube, and described quartz column is the column structure of hollow; Coating graphite layer on the periphery of described quartz column; Described graphite linings outer round surface then coated stainless steel tube.
The concrete structure of further described branch pipe connection is: main body is the tubing of hollow, and at the outer round surface two ends of described tubing, global formation has the second flange respectively, described second flange is respectively equipped with the second threaded hole of N >=4 distribution; On 1/2 position of the side of described branch pipe connection, there is an inlet mouth with the mode global formation at 35 ° of angles, level of incline face, communicate with the inner chamber of branch pipe connection; Described inlet mouth is check valve.
The limit switch distributed by symmetrical mode for a pair is also fixedly connected with further under described obturator.
Compared with prior art, the invention has the beneficial effects as follows:
1. the present invention adopts sectional type arm together interconnection, adds the reactivity of extension tube, freely can control the length of extension tube according to the length of optical fiber.
2. the present invention is by arranging telescopic cylinder and rotary cylinder, can realize whole extension tube device up and down and the realization of spinning movement.
3. elastic device of the present invention arranges the coated adjustable pipe of spring, outside stationary bearing, and elastic device is arranged on extension tube device upper end, can avoid colliding when extension tube device contact obturator time, gives its certain cushion effect and is protected.
4. the present invention is also fixedly connected with limit switches under obturator, can work as elastic device when being connected with obturator, can stop in time when preventing elastic device to cross.
5. manufacturing cost economy of the present invention, structure is simple, without the need to the maintenance that the later stage is loaded down with trivial details, and has the advantages such as life-span length.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of obturator of the present invention.
Fig. 3 is the structural representation of elastic device of the present invention.
Fig. 4 is the structural representation of extension tube device arm of the present invention.
Fig. 5 is the structural representation of extension tube device branch pipe connection of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of fibre drawing furnace of the present invention, comprise: top gas dish 1, body of heater 2, middle sleeve 3, thermal insulator 4, heating element 5, extension tube, top gas dish 1 is fixedly connected on body of heater 2 upper surface center position, middle sleeve 3 is fixedly connected on the RC y-axis direction of body of heater 2 in the mode running through body of heater 2, heating element 5 is coated on the outer round surface of middle sleeve 3, one layer of heat preservation body 4 is provided with between heating element 5 and body of heater 2, thermal insulator 4 is not in contact with each other each other with body of heater 2 and heating element 5, extension tube is fixedly connected on body of heater 2 lower surface, be connected with middle sleeve 3.
The present invention is on above-mentioned basis, and the extension tube device 7 that extension tube adopts sectional type arm interconnection, adds the reactivity of extension tube, freely can control the length of extension tube according to the length of optical fiber.
Specifically as shown in Figure 1: the concrete structure of extension tube device 7 is: comprise arm 10, support 11, base 12, telescopic cylinder 13, rotary cylinder 14 and branch pipe connection 15; The lower surface of arm 10 is fixedly connected with branch pipe connection 15; The side of arm 10 is fixedly connected with support 11; Form the arm 10 of extension tube device 7, support 11 and branch pipe connection 15 and be N >=2, adopt the mode of superposition mutually to combine, and be fixedly connected on telescopic cylinder 13; Telescopic cylinder is fixedly connected with rotary cylinder 14 13 times; Rotary cylinder 14 is fixedly connected with base 12, and the present invention, by arranging telescopic cylinder and rotary cylinder, can realize whole extension tube device up and down and the realization of spinning movement.
The present invention, in order to ensure the heat insulation effect of arm 10 in extension tube device 7 better, adopts the concrete design as shown in Figure 4 of arm 10.
The concrete structure of arm 10 is: comprise quartz column 10a, graphite linings 10b and stainless steel tube 10c, and quartz column 10a is the column structure of hollow; Coating graphite layer 10b on the periphery of quartz column 10a; Graphite linings 10b outer round surface is coated stainless steel tube 10c then, arranges the intensity that stainless steel tube can strengthen arm 10, arranges graphite linings and can play good heat insulation effect.
The present invention, in order to ensure the good annexation in extension tube device 7 between each arm 10 better, adopts the concrete design as shown in Figure 5 of branch pipe connection 15.
The concrete structure of branch pipe connection 15 is: main body is the tubing of hollow, and at the outer round surface two ends of described tubing, global formation has the second flange 15a respectively, the second flange 15a is respectively equipped with the second threaded hole 15b of N >=4 distribution; On 1/2 position of the side of branch pipe connection 15, there is an inlet mouth 15c with the mode global formation at 35 ° of angles, level of incline face, communicate with the inner chamber of branch pipe connection 15; Inlet mouth 15c is check valve, arranges the flange at two ends, and arranges screw thread and can realize well connecting between arm, and the inlet mouth arranged above can lead to rare gas element, adopts check valve to prevent gas leak.
The present invention, on above-mentioned basis, in order to ensure the resistance to air loss of body of heater 2, is fixedly connected with an obturator 6 at body of heater 2 lower surface.
Specifically as shown in Figure 2: the concrete structure of obturator 6 is: comprise cylinder 6a, airtight cover 6b and housing 6c, the inboardend of cylinder 6a is connected with the inside right side wall of housing 6c, the movable end of cylinder 6a is connected with airtight cover 6b, airtight cover 6b is movably connected in housing 6c simultaneously, such project organization is simple, just can play good airtight effect by the cost of economy.
The present invention collides to prevent extension tube device 7 and obturator 6, is also fixedly connected with an elastic device 8 in extension tube device 7 upper end.
Specifically as shown in Figure 3: the concrete structure of elastic device 8 is: comprise bearing 8a, spring 8b and adjustable pipe 8c, adjustable pipe 8c main body is the tubing of hollow, the position of adjustable pipe 8c lower end 1/3 is provided with groove 8d; Bearing 8a main body is the tubing of hollow, and on cylindrical one end, global formation has the first flange 8e, and the other end is then provided with recess groove 8f, the first flange 8e on be evenly equipped with N >=4 the first threaded hole 8g, the position of bearing 8a internal chamber lower end 1/3 is provided with rectangular tank 8h; Adjustable pipe 8c is slidably connected in the chamber of bearing 8a; Spring 8b is arranged on the groove 8d of adjustable pipe 8c; and be placed in the rectangular tank 8h of bearing 8a; elastic device 8 arranges the coated adjustable pipe 8c of spring 8b; outside stationary bearing 8a; and elastic device 8 is arranged on extension tube device 7 upper end; can avoid colliding when extension tube device 7 contacts obturator 6 time, give its certain cushion effect and protected.
When the present invention is in order to make elastic device 8 contact with obturator 6, time elastic device 8 can stop in time, specifically as shown in Figure 1: obturator is also fixedly connected with a pair limit switch 9 distributed by symmetrical mode for 6 times.
Using state of the present invention: preform arrives heating member 5 in body of heater 2 through top gas dish 1 and heats, extension tube device 7 processes the number of the length adjustment arm 10 of optical fiber as required, when after process finishing, extension tube device 7 is at the moved downward of telescopic cylinder 13, last under the effect of rotary cylinder 14, extension tube device 7 leaves body of heater 2, and body of heater 2 seals by obturator 6.
Claims (7)
1. a fibre drawing furnace, comprise: top gas dish (1), body of heater (2), middle sleeve (3), thermal insulator (4), heating element (5), extension tube, described top gas dish (1) is fixedly connected on body of heater (2) upper surface center position, described middle sleeve (3) is fixedly connected on the RC y-axis direction of body of heater (2) in the mode running through body of heater (2), described heating element (5) is coated on the outer round surface of middle sleeve (3), one layer of heat preservation body (4) is provided with between described heating element (5) and body of heater (2), thermal insulator (4) is not in contact with each other each other with body of heater (2) and heating element (5), described extension tube is fixedly connected on body of heater (2) lower surface, be connected with middle sleeve (3), it is characterized in that: the extension tube device (7) that described extension tube adopts sectional type arm interconnection, described body of heater (2) lower surface is fixedly connected with an obturator (6), described extension tube device (7) is arranged on obturator (6) lower end, described extension tube device (7) upper end is also fixedly connected with an elastic device (8).
2. a kind of fibre drawing furnace according to claim 1, it is characterized in that: the concrete structure of described obturator (6) is: comprise cylinder (6a), airtight cover (6b) and housing (6c), the inboardend of described cylinder (6a) is connected with the inside right side wall of housing (6c), the movable end of described cylinder (6a) is connected with airtight cover (6b), and described airtight cover (6b) is movably connected in housing (6c) simultaneously.
3. a kind of fibre drawing furnace according to claim 1, it is characterized in that: the concrete structure of described elastic device (8) is: comprise bearing (8a), spring (8b) and adjustable pipe (8c), described adjustable pipe (8c) main body is the tubing of hollow, and the position of adjustable pipe (8c) lower end 1/3 is provided with groove (8d); Described bearing (8a) main body is the tubing of hollow, on cylindrical one end, global formation has the first flange (8e), the other end is then provided with recess groove (8f), described the first flange (8e) is evenly equipped with N >=4 the first threaded hole (8g), and the position of described bearing (8a) internal chamber lower end 1/3 is provided with rectangular tank (8h); Described adjustable pipe (8c) is slidably connected in the chamber of bearing (8a); Described spring (8b) is arranged on the groove (8d) of adjustable pipe (8c), and is placed in the rectangular tank (8h) of bearing (8a).
4. a kind of fibre drawing furnace according to claim 1, is characterized in that: the concrete structure of described extension tube device (7) is: comprise arm (10), support (11), base (12), telescopic cylinder (13), rotary cylinder (14) and branch pipe connection (15); The lower surface of described arm (10) is fixedly connected with branch pipe connection (15); The side of described arm (10) is fixedly connected with support (11); The arm (10) of described formation extension tube device (7), support (11) and branch pipe connection (15) are N >=2, adopt the mode of superposition mutually to combine, and are fixedly connected on telescopic cylinder (13); Rotary cylinder (14) is fixedly connected with under described telescopic cylinder (13); Described rotary cylinder (14) is fixedly connected with base (12).
5. a kind of fibre drawing furnace according to claim 4, it is characterized in that: the concrete structure of described arm (10) is: comprise quartz column (10a), graphite linings (10b) and stainless steel tube (10c), the column structure that described quartz column (10a) is hollow; Coating graphite layer (10b) on the periphery of described quartz column (10a); Described graphite linings (10b) outer round surface is coated stainless steel tube (10c) then.
6. a kind of fibre drawing furnace according to claim 4, it is characterized in that: the concrete structure of described branch pipe connection (15) is: main body is the tubing of hollow, at the outer round surface two ends of described tubing, global formation has the second flange (15a) respectively, described second flange (15a) is respectively equipped with second threaded hole (15b) of N >=4 distribution; On 1/2 position of the side of described branch pipe connection (15), there is an inlet mouth (15c) with the mode global formation at 35 ° of angles, level of incline face, communicate with the inner chamber of branch pipe connection (15); Described inlet mouth (15c) is check valve.
7. a kind of fibre drawing furnace according to claim 1, is characterized in that: under described obturator (6), be also fixedly connected with the limit switch (9) 2 distributed by symmetrical mode for a pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410488255.7A CN104291677B (en) | 2014-09-23 | 2014-09-23 | A kind of fibre drawing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410488255.7A CN104291677B (en) | 2014-09-23 | 2014-09-23 | A kind of fibre drawing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104291677A true CN104291677A (en) | 2015-01-21 |
| CN104291677B CN104291677B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410488255.7A Active CN104291677B (en) | 2014-09-23 | 2014-09-23 | A kind of fibre drawing furnace |
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| Country | Link |
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| CN (1) | CN104291677B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105038A1 (en) * | 2017-11-29 | 2019-06-06 | 中天科技光纤有限公司 | Fiber drawing furnace and fiber drawing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101481209A (en) * | 2009-02-09 | 2009-07-15 | 富通集团有限公司 | Method for extending service life of graphite member of optical fiber preform bar stretching furnace |
| 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 |
| CN102040332A (en) * | 2009-10-12 | 2011-05-04 | 西安金和光学科技有限公司 | Optical fiber horizontal wire drawing device |
| JP5041425B2 (en) * | 2008-03-05 | 2012-10-03 | 古河電気工業株式会社 | Optical fiber preform stretching apparatus and optical fiber preform manufacturing method |
| CN204174093U (en) * | 2014-09-23 | 2015-02-25 | 中天科技光纤有限公司 | A kind of fibre drawing furnace |
-
2014
- 2014-09-23 CN CN201410488255.7A patent/CN104291677B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5041425B2 (en) * | 2008-03-05 | 2012-10-03 | 古河電気工業株式会社 | Optical fiber preform stretching apparatus and optical fiber preform manufacturing method |
| CN101481209A (en) * | 2009-02-09 | 2009-07-15 | 富通集团有限公司 | Method for extending service life of graphite member of optical fiber preform bar stretching furnace |
| CN102040332A (en) * | 2009-10-12 | 2011-05-04 | 西安金和光学科技有限公司 | Optical fiber horizontal wire drawing device |
| 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 |
| CN204174093U (en) * | 2014-09-23 | 2015-02-25 | 中天科技光纤有限公司 | A kind of fibre drawing furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105038A1 (en) * | 2017-11-29 | 2019-06-06 | 中天科技光纤有限公司 | Fiber drawing furnace and fiber drawing method |
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| Publication number | Publication date |
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| CN104291677B (en) | 2016-07-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190425 Address after: 226009 No. 6 Tiantian Road, Nantong Development Zone, Nantong City, Jiangsu Province Co-patentee after: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. Patentee after: ZHONGTIAN TECHNOLOGY FIBER POTICS Co.,Ltd. Address before: 226000 No. 6 Tiantian Road, Nantong Economic and Technological Development Zone, Jiangsu Province Patentee before: ZHONGTIAN TECHNOLOGY FIBER POTICS Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Fiber Drawing Furnace Effective date of registration: 20221201 Granted publication date: 20160706 Pledgee: Bank of Communications Co.,Ltd. Nantong Branch Pledgor: ZHONGTIAN TECHNOLOGY FIBER POTICS Co.,Ltd. Registration number: Y2022980024574 |