CN115536262A - Optical fiber drawing equipment - Google Patents
Optical fiber drawing equipment Download PDFInfo
- Publication number
- CN115536262A CN115536262A CN202211248772.8A CN202211248772A CN115536262A CN 115536262 A CN115536262 A CN 115536262A CN 202211248772 A CN202211248772 A CN 202211248772A CN 115536262 A CN115536262 A CN 115536262A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- oblique
- fiber drawing
- shunting
- spray holes
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 72
- 238000012681 fiber drawing Methods 0.000 title claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 27
- 238000010926 purge Methods 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 abstract description 10
- 238000007664 blowing Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- C03B37/035—Drawing means, e.g. drawing drums ; Traction or tensioning devices having means for deflecting or stripping-off fibres or for removing defective parts
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
- C03C25/105—Organic claddings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
- C03C25/106—Single coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention relates to optical fiber drawing equipment which comprises an optical fiber drawing furnace, a cooling device, a coating die and an ultraviolet curing device which are arranged from top to bottom, wherein a traction wheel and a guide wheel set are arranged below the ultraviolet curing device, and the guide wheel set is connected with an optical fiber wire collecting device. The invention can sweep the volatile matter attached to the surface of the optical fiber during the high-speed wire drawing and coating curing process, and remove the volatile matter attached to the surface of the optical fiber during the wire drawing process. Volatile matters are prevented from being adhered to the PMD wheel, the optical fiber diameter gauge and the guide wheel along with the traction of the optical fiber, and the stability of the twisting and wire drawing of the PMD wheel is improved, so that the surface quality of the optical fiber and the wire drawing quality of the optical fiber are improved. The vortex airflow generated by the vortex airflow blowing device can remove volatile matters adhered to the surface of the optical fiber more effectively. The invention has simple structure and reasonable arrangement.
Description
Technical Field
The invention relates to optical fiber drawing equipment, and belongs to the technical field of optical fiber processing equipment.
Background
The optical fiber is formed by drawing an optical fiber prefabricated rod into a fiber in a high-temperature melting state, when the optical fiber is manufactured, the optical fiber prefabricated rod is clamped in a drawing furnace and heated to the temperature of more than 1700 ℃, the bare fiber with the diameter of 125 mu m is drawn through high-temperature melting, the bare fiber passes through a coating mold and is coated with liquid resin coating, the liquid resin coating passes through a curing device, and the curing device irradiates the liquid coating with UV ultraviolet light to generate physical and chemical reactions, so that a solid resin coating layer is synthesized. The bare optical fiber is coated and cured by the coating to form the optical fiber, the optical fiber passes through the curing device, is fed to the guide wheel and the optical fiber drawing traction wheel, and finally is guided to the wire collecting device through the guide wheel group to be collected, namely the wire drawing preparation process is completed.
In the process of coating a coating layer on a bare optical fiber and curing the coating, after the bare optical fiber is coated with the liquid coating, ultraviolet light irradiates the liquid coating when passing through a curing device to generate physical and chemical reactions, so that the coating can be cured, and volatile matters can be generated to be attached to the surface of the coating layer of the optical fiber, and can be adhered to a PMD wheel, an optical fiber diameter gauge and a guide wheel along with the traction of the optical fiber, thereby not only influencing the twisting stability of the PMD wheel and the wire drawing stability, but also influencing the wire drawing quality and unqualified appearance of the optical fiber after the volatile matters are accumulated.
Disclosure of Invention
The invention aims to solve the technical problem of providing optical fiber drawing equipment aiming at the defects in the prior art, which can effectively remove volatile matters attached to the surface of an optical fiber coating in coating curing, thereby improving the optical fiber drawing quality and the optical fiber appearance quality.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device comprises an optical fiber drawing furnace, a cooling device, a coating die and an ultraviolet curing device which are arranged from top to bottom, wherein a traction wheel and a guide wheel group are arranged below the ultraviolet curing device, the guide wheel group is connected with an optical fiber wire collecting device, and the device is characterized in that an air flow purging device is arranged between the ultraviolet curing device and the traction wheel.
According to the scheme, a PMD thread rolling wheel device is arranged between the airflow blowing device and the traction wheel.
According to the scheme, the airflow purging device is a vortex airflow purging device.
According to the scheme, the vortex air flow purging device is a double-layer or multi-layer vortex air flow purging device.
According to the scheme, the double-layer vortex airflow purging device comprises an air inlet outer ring and a shunting inner ring, an annular buffer air cavity is arranged between the air inlet outer ring and the shunting inner ring, oblique shunting spray holes are formed in the shunting inner ring at intervals along the circumferential direction, the rear ends of the oblique shunting spray holes are communicated with the annular buffer air cavity, a front end nozzle faces a central through hole of the shunting inner ring, two layers of oblique shunting spray holes are arranged in the axial direction of the oblique shunting spray holes at intervals from top to bottom, the oblique directions of the two layers of oblique shunting spray holes are opposite, so that a positive-negative two-layer vortex airflow is formed, an air inlet hole is formed in the air inlet outer ring, one end of the air inlet hole is communicated with the annular buffer air cavity, and the other end of the air inlet hole is communicated with a pressure air source.
According to the scheme, the multilayer vortex airflow purging device comprises more than two layers of oblique shunting spray holes, and the oblique directions of the oblique shunting spray holes of the two adjacent layers are opposite, so that two forward and reverse vortex airflows are formed.
According to the scheme, the included angle between the inclined shunting spray hole and the radius extension line is 25-45 degrees.
According to the scheme, 3-6 oblique shunt spray holes are uniformly distributed along the circumferential direction, and the aperture of each oblique shunt spray hole is 1.5-2.5 mm.
According to the scheme, the aperture of the central through hole of the shunting inner ring is 6-12 mm, and the axial length is 20-40 mm.
According to the scheme, the pressure gas source is a nitrogen pressure gas source.
According to the scheme, the bare optical fiber diameter measuring instrument is arranged between the optical fiber drawing furnace and the cooling device, and the optical fiber diameter measuring instrument is arranged between the airflow purging device and the PMD thread rolling wheel device.
The invention has the beneficial effects that: 1. the device can sweep the volatile matter attached to the surface of the optical fiber during the high-speed drawing and coating curing process, and remove the volatile matter attached to the surface of the optical fiber during the drawing process. Volatile matters are prevented from being adhered to the PMD wheel, the optical fiber diameter gauge and the guide wheel along with the traction of the optical fiber, and the stability of the twisting and wire drawing of the PMD wheel is improved, so that the surface quality of the optical fiber and the wire drawing quality of the optical fiber are improved. 2. The vortex air flow generated by the vortex air flow blowing device can remove volatile matters adhered to the surface of the optical fiber more effectively. 3. The double-layer or multi-layer vortex airflow blowing device can generate two or more vortex airflows with opposite directions, so that the twisting action of the vortex airflows on the optical fiber is mutually counteracted and balanced, and the normal operation of wire drawing and thread rolling is ensured. 4. The invention has simple structure and reasonable arrangement.
Drawings
Fig. 1 is an overall structural elevation view of one embodiment of the present invention.
FIG. 2 is a cross-sectional elevation view of a vortex gas flow purge apparatus in accordance with an embodiment of the invention.
Fig. 3 is a sectional top view of fig. 2 taken along the lower branch nozzle.
Fig. 4 is a top sectional view of fig. 2 taken along the upper layer branch nozzle hole.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples.
One embodiment of the invention is shown in fig. 1-4, and comprises a lifting chuck 24 for clamping an optical fiber perform 9, a drawing furnace 10, a bare fiber diameter measuring instrument 22, a cooling device 23, a coating die 12 and an ultraviolet curing device 13 which are arranged from top to bottom, wherein a traction wheel 15 and a guide wheel group 19 are arranged below the ultraviolet curing device, the guide wheel group is connected with an optical fiber take-up device 18, the optical fiber take-up device comprises a tension wheel B and a take-up optical fiber disc A, an air flow blowing device 14 is arranged between the ultraviolet curing device and the traction wheel, and an optical fiber diameter measuring instrument 20 and a PMD thread rolling wheel device 21 are arranged between the air flow blowing device and the traction wheel. The air flow purging device is a double-layer vortex air flow purging device, the double-layer vortex air flow purging device comprises an air inlet outer ring 7 and a shunting inner ring 2, the air inlet outer ring is provided with a circular concave cavity, the bottom surface of the circular concave cavity is provided with a through hole, the top of the shunting inner ring is provided with an outward extending edge, the edge is circumferentially provided with a connecting hole 1, the connecting hole is connected with a screw hole 3 on the top surface of the air inlet outer ring through a screw 17, so that the air inlet outer ring 7 and the shunting inner ring 2 are connected into a whole, an annular buffer air cavity 16 is formed between the circular concave cavity of the air inlet outer ring and the outer diameter of the shunting inner ring, the middle part of the shunting inner ring is provided with a through hole which is connected with the through hole at the bottom of the cavity of the air inlet outer ring, and the shunting inner ring is provided with oblique shunting spray holes at intervals along the circumferential direction, the rear end of each oblique shunting spray hole is communicated with the annular buffer air cavity, the front end spray opening faces to a shunting inner ring central through hole, two layers of oblique shunting spray holes are axially arranged at intervals up and down, the deflection directions of the two layers of oblique shunting spray holes are opposite, so that a positive layer vortex air flow and a negative layer vortex air flow are formed, the included angle between each oblique shunting spray hole and a radius extension line is 35 degrees, 4 oblique shunting spray holes are uniformly distributed along the circumferential direction, wherein the upper layer oblique shunting spray hole 5 deflects towards the left side to form a positive vortex air flow in the clockwise direction, the lower layer oblique shunting spray hole 6 deflects towards the right side to form a negative vortex air flow in the anticlockwise direction, the hole diameter of each oblique shunting spray hole is 2mm, the hole diameter of the shunting inner ring central through hole is 6-12 mm, and the axial length is 20-40 mm; the air inlet outer ring is provided with an air inlet 4 and a connector 8, the left side and the right side of the air inlet are symmetrically arranged, one end of the air inlet is communicated with the annular buffer air cavity, the other end of the air inlet is communicated with a pressure air source, and the pressure air source is a nitrogen pressure air source which is nitrogen with the pressure of 5-6bar and 10-20 SLM.
The optical fiber perform is drawn into a bare optical fiber through high-temperature melting in a drawing furnace, the bare optical fiber enters a coating die through a bare optical fiber diameter measuring instrument and a cooling device to be coated with a resin coating, then enters an ultraviolet curing device to be cured to form the coated optical fiber 11, the optical fiber enters an airflow blowing device to blow and blow adhered volatile matters generated in the high-speed drawing and curing coating process of the optical fiber, the volatile matters adhered to the surface of the optical fiber in the drawing process are removed, and finally the optical fiber goes through an optical fiber diameter measuring instrument 20 and a PMD thread rolling wheel device 21, passes through a traction wheel 15 and a guide wheel group 19 and is connected with an optical fiber take-up device 18.
Claims (10)
1. The utility model provides an optical fiber drawing equipment, includes from last optical fiber drawing furnace, cooling device, coating mould and the ultraviolet curing device that sets up extremely down, installs traction wheel and guide pulley group below the ultraviolet curing device, and the guide pulley group links up with the optic fibre receipts silk device mutually, and its characterized in that sets up the air current between ultraviolet curing device and traction wheel and sweeps the device.
2. The optical fiber drawing apparatus according to claim 1, wherein a PMD thread rolling wheel device is provided between the gas flow purge device and the drawing wheel.
3. The optical fiber drawing apparatus according to claim 1 or 2, wherein said gas purging means is a vortex gas purging means.
4. The optical fiber drawing apparatus according to claim 3, wherein the vortex gas flow purging device is a double-layer or multi-layer vortex gas flow purging device.
5. The optical fiber drawing equipment according to claim 4, wherein the double-layer vortex air flow purging device comprises an air inlet outer ring and a shunting inner ring, an annular buffer air cavity is arranged between the air inlet outer ring and the shunting inner ring, oblique shunting spray holes are circumferentially arranged on the shunting inner ring at intervals, the rear ends of the oblique shunting spray holes are communicated with the annular buffer air cavity, a front end nozzle faces to a central through hole of the shunting inner ring, two layers of oblique shunting spray holes are axially arranged on the oblique shunting spray holes at intervals up and down, the inclined directions of the two layers of oblique shunting spray holes are opposite to each other, so that a positive and negative two-layer vortex air flow is formed, an air inlet hole is arranged on the air inlet outer ring, one end of the air inlet hole is communicated with the annular buffer air cavity, and the other end of the air inlet hole is communicated with a pressure air source.
6. The optical fiber drawing equipment according to claim 4, wherein the multi-layer vortex gas flow purging device comprises more than two layers of oblique branch flow spray holes, and the oblique directions of the oblique branch flow spray holes of two adjacent layers are opposite to form two types of vortex gas flows of positive and negative directions.
7. The optical fiber drawing apparatus according to claim 5 or 6, wherein the angle between the inclined diverging nozzle hole and the extended line of the radius is 25 to 45 °.
8. The optical fiber drawing apparatus according to claim 5 or 6, wherein 3 to 6 oblique branch orifices are uniformly distributed along the circumferential direction, and the aperture of each oblique branch orifice is 1.5 to 2.5mm.
9. The optical fiber drawing apparatus according to claim 5, wherein the bore diameter of the central through hole of the shunting inner ring is 6 to 12mm, and the axial length is 20 to 40mm.
10. The optical fiber drawing apparatus according to claim 5 wherein the pressurized gas source is a nitrogen pressurized gas source.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211248772.8A CN115536262B (en) | 2022-10-12 | 2022-10-12 | Optical fiber drawing equipment |
| PL446339A PL446339A1 (en) | 2022-10-12 | 2023-10-10 | Device for drawing optical fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211248772.8A CN115536262B (en) | 2022-10-12 | 2022-10-12 | Optical fiber drawing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115536262A true CN115536262A (en) | 2022-12-30 |
| CN115536262B CN115536262B (en) | 2023-12-01 |
Family
ID=84733780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211248772.8A Active CN115536262B (en) | 2022-10-12 | 2022-10-12 | Optical fiber drawing equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115536262B (en) |
| PL (1) | PL446339A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07267686A (en) * | 1994-03-31 | 1995-10-17 | Fujikura Ltd | Method for coating optical fiber and device therefor |
| CN101549962A (en) * | 2009-05-15 | 2009-10-07 | 长飞光纤光缆有限公司 | Method and device for removing coating solidifying volatile material in optical fibre drawing process |
| 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 |
| CN207386069U (en) * | 2017-02-07 | 2018-05-22 | 通鼎互联信息股份有限公司 | A kind of device for cleaning optical fiber surface volatile matter |
| CN209263059U (en) * | 2018-11-15 | 2019-08-16 | 伊思特（北京）能源科技有限公司 | A kind of coking dust stratification purging device |
| CN211838899U (en) * | 2019-12-25 | 2020-11-03 | 山东智光通信科技有限公司 | Device for cleaning volatile matter by blowing heated air flow |
| CN214583072U (en) * | 2020-12-25 | 2021-11-02 | 天津富通光纤技术有限公司 | Cleaning device for reducing pollution of fiber diameter instrument lens in optical fiber production |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274619C (en) * | 2004-09-27 | 2006-09-13 | 长飞光纤光缆有限公司 | Method of making optical fiber by high speed drawing |
| JP5672763B2 (en) * | 2010-05-07 | 2015-02-18 | 住友電気工業株式会社 | Optical fiber drawing method and apparatus |
| CN116813193A (en) * | 2023-07-13 | 2023-09-29 | 安徽长荣光纤光缆科技有限公司 | Optical fiber drawing cooling device |
-
2022
- 2022-10-12 CN CN202211248772.8A patent/CN115536262B/en active Active
-
2023
- 2023-10-10 PL PL446339A patent/PL446339A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07267686A (en) * | 1994-03-31 | 1995-10-17 | Fujikura Ltd | Method for coating optical fiber and device therefor |
| CN101549962A (en) * | 2009-05-15 | 2009-10-07 | 长飞光纤光缆有限公司 | Method and device for removing coating solidifying volatile material in optical fibre drawing process |
| 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 |
| CN207386069U (en) * | 2017-02-07 | 2018-05-22 | 通鼎互联信息股份有限公司 | A kind of device for cleaning optical fiber surface volatile matter |
| CN209263059U (en) * | 2018-11-15 | 2019-08-16 | 伊思特（北京）能源科技有限公司 | A kind of coking dust stratification purging device |
| CN211838899U (en) * | 2019-12-25 | 2020-11-03 | 山东智光通信科技有限公司 | Device for cleaning volatile matter by blowing heated air flow |
| CN214583072U (en) * | 2020-12-25 | 2021-11-02 | 天津富通光纤技术有限公司 | Cleaning device for reducing pollution of fiber diameter instrument lens in optical fiber production |
Also Published As
| Publication number | Publication date |
|---|---|
| PL446339A1 (en) | 2024-04-15 |
| CN115536262B (en) | 2023-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2579079A1 (en) | Optical cable structure for air blown installation and manufacture method thereof | |
| CN105177738A (en) | Cross air blow cooling device for melt spinning | |
| CN106591969B (en) | A kind of preparation method of polyether-ether-ketone doughnut | |
| JPS6193857A (en) | Coating method and device for fiber | |
| ES2030214T3 (en) | PROCEDURE FOR THE MANUFACTURE OF FINAL POLYMER FIBERS. | |
| CN113292241A (en) | Optical fiber drawing furnace, optical fiber preparation device, optical fiber preparation method and small-diameter optical fiber | |
| JP2016204807A (en) | Melt-blown nozzle and ultrafine fiber manufacturing device | |
| CN205046230U (en) | Ring air blast chilling device that melt spinning used | |
| GB2579100A (en) | Spinneret block with readily exchangable nozzles for use in the manufacturing of meltblown fibers | |
| CN115536262A (en) | Optical fiber drawing equipment | |
| CN108221069B (en) | Circular air-blowing cooling device for polylactic acid short fiber spinning | |
| CN202543431U (en) | Novel spinning nozzle structure | |
| CN211256165U (en) | Circular blowing cooling device in chemical fiber production | |
| TWI716010B (en) | Polygonal fiber drawing system | |
| CN106968021B (en) | High-efficient spinning device | |
| CN113390367B (en) | Spinneret orifice detection method for spinneret plate | |
| CN211284633U (en) | Lifting type circular blowing device | |
| CN204138835U (en) | A kind of novel center inner ring blowing device | |
| CN207386069U (en) | A kind of device for cleaning optical fiber surface volatile matter | |
| CN213113619U (en) | Spinneret plate for preparing nascent fiber | |
| CN214142622U (en) | Superfine PPS fibre spouts a device | |
| JP4459858B2 (en) | Optical fiber strand manufacturing method and optical fiber strand manufacturing apparatus | |
| CN206772240U (en) | A kind of drawing optical fibers measuring system gas seal protection device | |
| WO2020189791A3 (en) | Production method for nanofiber aggregates, production apparatus for nanofiber aggregates, and nanofiber aggregates | |
| JP2928721B2 (en) | Method and apparatus for coating optical fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |