CN116375359A - Optical fiber UV curing device - Google Patents
Optical fiber UV curing device Download PDFInfo
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- CN116375359A CN116375359A CN202310029390.4A CN202310029390A CN116375359A CN 116375359 A CN116375359 A CN 116375359A CN 202310029390 A CN202310029390 A CN 202310029390A CN 116375359 A CN116375359 A CN 116375359A
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- plate
- air inlet
- glass tube
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 43
- 238000003848 UV Light-Curing Methods 0.000 title claims abstract description 38
- 239000011521 glass Substances 0.000 claims abstract description 97
- 238000000605 extraction Methods 0.000 claims description 29
- 239000000779 smoke Substances 0.000 claims description 16
- 238000009423 ventilation Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 61
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 30
- 239000007789 gas Substances 0.000 abstract description 20
- 238000001723 curing Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000002834 transmittance Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000000016 photochemical curing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000003039 volatile agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- C03C25/104—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
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention relates to a curing device, in particular to an optical fiber UV curing device. The curing device consists of a plurality of sections of UV curing furnaces, wherein the UV curing furnaces comprise LED lamp boxes and glass tubes, the glass tubes are connected through a serial mechanism, an upper air inlet mechanism is arranged on the upper glass tube, and a lower air exhaust mechanism is arranged on the lower glass tube. The curing device connects the glass tubes in series, so that only two ports are communicated with the outside, and nitrogen can only flow out of the ports of the two glass tubes, thereby effectively reducing the loss of nitrogen, effectively reducing waste and lowering the production cost of the optical fiber; the gas in the glass tube can be extracted, so that volatile matters in the glass tube are extracted, the light transmittance is further ensured, and the curing effect can be effectively ensured; the gas can be replaced, and volatile matters are discharged in a replacement mode, so that the environment is ensured to be clean; solves the problems of serious nitrogen loss, large waste and high production cost of the optical fiber of the prior device.
Description
Technical Field
The invention relates to a curing device, in particular to an optical fiber UV curing device.
Background
For current high-speed optical fiber drawing, it is necessary to apply a coating, which is a volatile substance, on the surface of an optical fiber to enhance the performance of the optical fiber, and it is necessary to cure the coating on the surface of the optical fiber by a UV curing oven (photo curing oven). The optical fiber is drawn by adopting a large rod to continuously draw, the time for drawing one optical rod is 38-42 hours, the continuous drawing time is long, more and more volatile matters in a UV curing furnace can be accumulated in the continuous drawing process, and ultraviolet light transmittance can be influenced on the surface of a UV cured quartz glass tube, so that the photocuring efficiency is reduced. The patent application with publication number of CN204509116U discloses a device for improving sealing performance of a UV curing furnace, which aims at solving the problem that volatiles are accumulated on a glass tube to reduce photocuring efficiency, and a great amount of nitrogen (process protection gas) is introduced into the UV curing quartz tube, and an exhaust device is arranged at the same time, so that the volatile substances are taken away by the nitrogen to maintain a stable clean environment, and the optical fiber curing environment with low oxygen content (the excessive oxygen content can destroy the coating to generate photocuring reaction) is maintained. In order to ensure the curing quality of the optical fiber, a plurality of sections of UV curing furnaces are generally arranged to prolong the exposure time of the optical fiber and enhance the curing effect. Although this approach solves the environmental problem (all volatiles can be carried away by nitrogen), there are still some disadvantages to this approach when each UV curing oven is configured with a nitrogen inlet and an exhaust port: in order to prevent external air from entering and maintain a low-oxygen-content environment, a large amount of nitrogen is introduced into the lower port of the UV curing furnace, and the upper port of the UV curing furnace is used for exhausting air and discharging. Therefore, it is very necessary to design a device capable of saving nitrogen in the UV curing furnace, so that nitrogen waste is avoided, and the production cost of the optical fiber is reduced.
Disclosure of Invention
The invention aims at: aiming at the defects of the prior art, the optical fiber UV curing device capable of saving nitrogen, reducing cost and ensuring clean environment is provided.
The technical scheme of the invention is as follows:
the utility model provides an optic fibre UV solidification equipment, it comprises the UV curing oven of multisection series connection, and the UV curing oven includes LED lamp house and glass tube, its characterized in that: the glass tubes are connected through a series mechanism, an upper air inlet mechanism is arranged at the upper end port of the upper glass tube, and a lower air exhaust mechanism is arranged at the lower end port of the lower glass tube; the series mechanism consists of a smoke extraction hood, a lower connector and an upper connector, wherein the lower connector is arranged at the upper end of the smoke extraction hood, and the upper connector is arranged at the lower end of the smoke extraction hood; the upper connector, the smoke extraction hood and the lower connector are communicated with each other.
The smoke exhaust cover consists of symmetrically arranged holding tiles and an exhaust port arranged on any holding tile, the holding tiles are connected through fixing bolts, and the exhaust port is communicated with an annulus between the holding tiles.
The exhaust port is provided with a measuring port.
The lower connector consists of a lower port fixing sleeve, a lower port seat, a spring, a lamp box lower connecting plate and a baffle plate, wherein the lower port seat is inserted on the lower port fixing sleeve, and the spring is arranged between the bottom port of the lower port seat and a limit shoulder arranged on the inner wall of the lower port fixing sleeve; a lower outer flange is arranged on the circumference of the lower port fixing sleeve, a lamp box lower connecting plate is sleeved at the end head of the lower port fixing sleeve above the lower outer flange, and the lamp box lower connecting plate is fixedly connected with the lower outer flange through a fixing bolt; the baffle is fixedly arranged on the top end surface of the lower connecting plate of the lamp box through a fixing bolt and is in abutting connection with the lower port seat; the lower port seat is connected with the end of the glass tube in a sleeved mode, and the glass tube is communicated with the central hole of the lower port fixing sleeve through the lower port seat; the annular space between the bottom end head of the lower opening fixing sleeve and the holding tile is connected in an inserting way; the lower connector is fixedly connected with the LED lamp box through a lamp box lower connecting plate.
The upper connector consists of an upper port base, an upper port air inlet cover plate and a lamp box upper connecting plate, wherein the upper port base is funnel-shaped, the upper port of the upper port base is fixedly provided with the upper port air inlet cover plate through a fixing bolt, the circumference of the upper port base is provided with an upper outer flange, the lamp box upper connecting plate is sleeved on the upper port base below the upper outer flange, and the lamp box upper connecting plate is fixedly connected with the upper outer flange through the fixing bolt; the bottom port of the upper port base is connected with the glass tube in a sleeved mode, and the glass tube is communicated with the central hole of the upper port air inlet cover plate through the upper port base; the annular space between the top end head of the upper opening air inlet cover plate and the holding tile is connected in an inserting way; the upper connector is fixedly connected with the LED lamp box through an upper lamp box connecting plate.
And a ventilation port is arranged on the upper port base above the upper outer flange and communicated with a central hole of the upper port base.
The upper air inlet mechanism consists of an upper connecting seat, a fixed cover plate, an air guide core and an inlet wire plate, wherein the fixed cover plate is fixedly arranged on the upper connecting seat through a fixed bolt, and the air guide core is arranged between the fixed cover plate and the upper connecting seat; the top end surface of the fixed cover plate is fixedly provided with a wire inlet plate through a fixed bolt, and the wire inlet plate, the fixed cover plate, the air guide core and the central hole of the upper connecting seat are mutually communicated; the upper connecting seat is fixedly connected with the LED lamp box and is sleeved with the glass tube.
The circumferences of the upper connecting seat and the fixed cover plate are respectively provided with an air inlet, and the air inlet of the upper connecting seat is communicated with the bottom port of the air guide core; an air inlet of the fixed cover plate is communicated with the top port of the air guide core.
The lower exhaust mechanism consists of a lower connecting seat, a sleeve, a lower air guide plate, a lower air inlet cover plate and an outlet plate, wherein the sleeve is sleeved on the lower connecting seat and fixedly connected with an outer flange on the lower connecting seat through a fixing bolt; the bottom of the sleeve is fixedly provided with a lower air guide plate through a fixing bolt, the bottom of the lower air guide plate is fixedly provided with a lower air inlet cover plate, and the bottom of the lower air inlet cover plate is fixedly provided with an outlet plate; the central holes of the wire outlet plate, the lower air inlet cover plate, the lower air guide plate, the sleeve and the lower connecting seat are communicated with each other; the lower connecting seat is connected with the glass tube in a sleeved mode and fixedly connected with the LED lamp box.
The casing pipe on be provided with down the extraction opening, be provided with down the measurement mouth on the extraction opening down.
The bottom end of the lower connecting seat is uniformly provided with vent holes, and the vent holes are communicated with the lower extraction opening through an annulus between the lower connecting seat and the sleeve.
The lower air inlet is arranged on the circumferential surface of the lower air inlet cover plate and is communicated with the central hole of the lower air inlet cover plate.
The invention has the beneficial effects that:
the optical fiber UV curing device cures the coating on the optical fiber through the multi-section UV curing furnace, so that the curing effect can be effectively ensured; the glass tubes are connected in series through the series mechanism, and only two glass tube ports between the multiple glass tubes can be communicated with the outside through the series mechanism, so that nitrogen can be lost outwards only at the two glass tube ports; the gas in the glass tube can be extracted through the serial mechanism and the lower exhaust mechanism, so that volatile matters in the glass tube are extracted, the glass tube is ensured to be clean, the light transmittance is further ensured, and the curing effect can be effectively ensured; the nitrogen can be supplemented in the air extraction process through the serial mechanism, so that the air in the glass tube is replaced, and the volatile matters in the glass tube are discharged in a replacement mode, so that the environment in the glass tube is ensured to be clean; solves the problems of serious nitrogen loss, large waste and high production cost of the optical fiber of the prior device.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the tandem mechanism of the present invention;
FIG. 3 is an exploded schematic view of the tandem mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the tandem mechanism of the present invention;
FIG. 5 is a schematic view of the structure of the upper air intake mechanism of the present invention;
fig. 6 is a schematic structural view of the lower exhaust mechanism of the present invention.
In the figure: 1. the LED lamp box comprises an LED lamp box body, 2, a glass tube, 3, a serial mechanism, 4, an upper air inlet mechanism, 5, a lower air outlet mechanism, 301, a holding tile, 302, an air suction opening, 303, a measuring opening, 304, a lower opening fixing sleeve, 305, a lower opening seat, 306 springs, 307, a lamp box lower connecting plate, 308, a baffle, 309, a lower outer flange, 310, an upper opening seat, 311, an upper opening air inlet cover plate, 312, a lamp box upper connecting plate, 313, an upper outer flange, 314, an air exchanging opening, 401, an upper connecting seat, 402, a fixing cover plate, 403, an air guide core, 404, an inlet board, 405, an air inlet hole, 501, a lower connecting seat, 502, a sleeve, 503, a lower air guide plate, 504, a lower air inlet cover plate, 505, an outlet board, 506, a lower opening, 507, a lower measuring opening, 508, an air vent, 509 and a lower air inlet.
Detailed Description
The optical fiber UV curing device consists of a plurality of sections of UV curing furnaces connected in series, and the purpose of arranging the plurality of sections of UV curing furnaces is to cure the coating on the optical fiber for multiple times through the plurality of sections of UV curing furnaces, so that the coating on the surface of the optical fiber is ensured to be completely cured, and the production quality of the optical fiber is ensured. The UV curing oven comprises an LED lamp box 1 and a glass tube 2, wherein the LED lamp box 1 comprises a box body and an LED ultraviolet lamp, and the LED lamp box 1 irradiates ultraviolet light to the glass tube 2 through the LED ultraviolet lamp, so that the surface of an optical fiber moving in the glass tube is irradiated, and the coating on the surface of the optical fiber is cured on the surface of the optical fiber under the irradiation of ultraviolet light of the LED ultraviolet lamp. The glass tube 2 has the function of isolating the optical fiber from the outside when the surface of the optical fiber is irradiated by ultraviolet light through the glass tube 2, so that the paint on the surface of the optical fiber is prevented from being damaged by oxygen in the air after being contacted with the outside air to generate photo-curing reaction. The glass tubes 2 are connected through a serial mechanism 3, an upper air inlet mechanism 4 is arranged at the upper end port of the upper glass tube 2, and a lower air outlet mechanism 5 is arranged at the lower end port of the lower glass tube 2; the effect of the series mechanism 3 is that after the glass tube 2 is sequentially connected in series through the series mechanism 3, the glass tube 2 is provided with only two ports communicated with the outside, so that the glass tube can leak nitrogen outwards only through the ports at the two ends, the leakage amount of the nitrogen can be greatly reduced relative to the leakage amount of the nitrogen at the two ends of each section of the glass tube, the use amount of the nitrogen is further reduced, and the production cost of the optical fiber is effectively reduced.
The series mechanism 3 consists of a smoke extraction hood, a lower connector and an upper connector, wherein the lower connector is arranged at the upper end of the smoke extraction hood, and the upper connector is arranged at the lower end of the smoke extraction hood; the upper connector, the smoke extraction hood and the lower connector are communicated with each other. The series mechanism 3 is connected with the glass tube 2 above the series mechanism 3 through a lower connector, and the series mechanism 3 is connected with the glass tube 2 below the series mechanism 3 through an upper connector, so that the glass tubes 2 are mutually communicated through the series mechanism 3. The fume extracting hood is used for extracting the gas in the glass tube 2, so that volatile substances entrained in the gas are extracted in the process of extracting the gas in the glass tube 2, and the environment in the glass tube 2 is ensured to be clean; meanwhile, the nitrogen in the glass tube 2 is supplemented through the lower connector, so that the nitrogen in the glass tube 2 is replaced while being extracted, the environment in the glass tube 2 is ensured to be clean, and the gas pressure in the glass tube 2 is ensured to be stable.
The smoke exhaust hood consists of symmetrically arranged holding tiles 301 and an exhaust port 302 arranged on any one holding tile 301, the holding tiles 301 are connected through fixing bolts, and the smoke exhaust hood is connected with the lower connector through the upper connector and then connected with the glass tube 2; the air suction port 302 is communicated with the annular space between the holding tiles 301; the air suction opening 302 is connected with a fan, and air in the holding tile 301 is sucked outwards through the fan and the air suction opening 302, so that air in the glass tube 2 is sucked. The exhaust port 302 is provided with a measuring port 303 to sample the gas in the glass tube 2 through the measuring port 303, so as to adjust the exhaust amount at the exhaust port 302 according to the volatile content and the oxygen content in the gas: when the content of volatile matters or the oxygen content in the gas is higher than a set value, the rotating speed of a fan connected with the air suction opening 302 is regulated, the air suction amount at the air suction opening 302 is increased, and meanwhile, the amount of nitrogen gas filled into the glass tube is increased, so that the amount of volatile matters and the amount of oxygen in the glass tube 2 are increased, and the cleanness and the low oxygen content in the glass tube 2 are ensured.
The lower connector consists of a lower port fixing sleeve 304, a lower port seat 305, a spring 306, a lamp box lower connecting plate 307 and a baffle 308, wherein the lower port seat 305 is inserted on the lower port fixing sleeve 304, the lower port seat 305 is connected with the end of the glass tube 2 in a sleeved mode, and the glass tube 2 is communicated with the central hole of the lower port fixing sleeve 304 through the lower port seat 305; a spring 306 is arranged between the bottom port of the lower port seat 305 and a limit shoulder arranged on the inner wall of the lower port fixing sleeve 304; the spring 306 is used for providing a pretightening force for the lower port seat 305 through the elasticity of the spring 306, so as to provide a pretightening force for the glass tube 2, and ensure the connection of the two ends of the glass tube 2; meanwhile, the spring 306 can be compressed, so that the length of the glass tube 2 can be installed within a larger range without cutting the glass tube 2, and the glass tube 2 is convenient to install. The circumference of the lower port fixing sleeve 304 is provided with a lower outer flange 309, the end socket of the lower port fixing sleeve 304 above the lower outer flange 309 is sleeved with a lamp box lower connecting plate 307, the lamp box lower connecting plate 307 is fixedly connected with the lower outer flange 309 through a fixing bolt, and the lower connector is fixedly connected with the LED lamp box 1 through the lamp box lower connecting plate 307. A baffle 308 is fixedly arranged on the top end surface of the lamp box lower connecting plate 307 through a fixing bolt, and the baffle 308 is in abutting connection with the lower port seat 305; the baffle 308 is used for blocking the lower port seat 305, so that the lower port seat 305 is always positioned in the lower port fixing sleeve 304, and further, the connection between the lower port seat 305 and the lower port fixing sleeve 304 is ensured. The bottom end of the lower port fixing sleeve 304 is connected with the holding tile 301 in an annular inserting manner, and then the glass tube 2 sequentially passes through the lower port seat 305, the lower port fixing sleeve 304 and the annular communication between the holding tile 301, so that the glass tube 2 connected with the lower connector is communicated with the air suction port 302, and the air suction port 302 can sequentially pass through the holding tile 301, the lower port fixing sleeve 304 and the lower port seat 305 to suction air to the glass tube 2.
The upper connector consists of an upper port base 310, an upper port air inlet cover plate 311 and a lamp box upper connecting plate 312, wherein the upper port base 310 is in a funnel shape, the upper port of the upper port base 310 is fixedly provided with the upper port air inlet cover plate 311 through a fixing bolt, the bottom end head of the upper port air inlet cover plate 311 is in a cone shape, the outer wall of the upper port air inlet cover plate 311 and the inner wall of the upper port base 310 are arranged in parallel at intervals, a gap exists between the inner wall of the upper port base 310 and the outer wall of the upper port air inlet cover plate 311, and gas can circulate between the inner wall of the upper port base 310 and the outer wall of the upper port air inlet cover plate 311; a ring groove is formed in the upper opening base 310 on the outer side of the upper opening air inlet cover plate 311, and the ring groove is communicated with a gap between the inner wall of the upper opening base 310 and the outer wall of the upper opening air inlet cover plate 311; an upper outer flange 313 is arranged on the circumference of the upper port base 310, a ventilation port 314 is arranged on the upper port base 310 above the upper outer flange 313, the ventilation port 314 is communicated with a central hole of the upper port base 310 sequentially through a ring groove and a gap between the inner wall of the upper port base 310 and the outer wall of the upper port air inlet cover plate 311, so that the ventilation port 314 is communicated with the central hole of the upper port base 310, when the ventilation port 314 is communicated with an air source, nitrogen can be injected into the central hole of the lower port base 310 sequentially through the ventilation port 314, the ring groove and the gap between the inner wall of the upper port base 310 and the outer wall of the upper port air inlet cover plate 311, and when the upper port base 310 is in air inlet through the ventilation port 314, the end face of the bottom of the upper port air inlet cover plate 311 guides air flow to enter the upper port base 310 and then move downwards. The upper opening base 310 below the upper outer flange 313 is sleeved with a lamp box upper connecting plate 312, and the lamp box upper connecting plate 312 is fixedly connected with the upper outer flange 313 through a fixing bolt; the upper connector is fixedly connected with the LED lamp box 1 through a lamp box upper connecting plate 312. The annular space between the top end of the upper inlet cover plate 311 and the holding tile 301 is connected in an inserting way, so that the annular space between the upper inlet cover plate 311 and the holding tile 301 is communicated, and gas in the lower connector can flow upwards into the connector through the holding tile 301 and flow downwards together with nitrogen entering from the ventilation port 314; the bottom port of the upper port base 310 is connected with the glass tube 2 in a sleeved mode, and the glass tube 2 is communicated with the central hole of the upper port air inlet cover plate 311 through the upper port base 310, so that downward flowing gas can enter the glass tube 2 from the upper port base 310 and continuously flow downwards.
The upper air inlet mechanism 4 consists of an upper connecting seat 401, a fixed cover plate 402, an air guide core 403 and an inlet wire plate 404, wherein the fixed cover plate 402 is fixedly arranged on the upper connecting seat 401 through a fixed bolt, the air guide core 403 is arranged between the fixed cover plate 402 and the upper connecting seat 401, the inlet wire plate 404 is fixedly arranged on the top end surface of the fixed cover plate 402 through a fixed bolt, and the inlet wire plate 404, the fixed cover plate 402, the air guide core 403 and the central hole of the upper connecting seat 401 are mutually communicated; the diameter of the central hole of the inlet wire plate 404 gradually decreases from the bottom end surface to the top end surface so as to reduce the communication area between the central hole of the inlet wire plate 404 and the outside, on one hand, the leakage amount of the gas flowing upwards from the bottom of the inlet wire plate 404 is reduced, and on the other hand, the entering amount of the outside air into the central hole of the inlet wire plate 404 is reduced. The air guide core 403 is provided with a connecting flange, and the air guide core 403 is fixedly connected with the upper connecting seat 401 and the fixed cover plate 402 through the connecting flange; the air guide cores above and below the connecting flange are respectively conical, and the outer walls of the air guide cores 403 are respectively arranged at intervals parallel to the inner walls of the upper connecting seat 401 and the fixed cover plate 402, so that gaps exist between the outer walls of the air guide cores 403 and the inner walls of the upper connecting seat 401 and the fixed cover plate 402, and then air can circulate in the gaps between the outer walls of the air guide cores 403 and the inner walls of the upper connecting seat 401 and the fixed cover plate 402. The upper connecting seat 401 and the fixed cover plate 402 outside the air guide core 403 are respectively provided with annular grooves, the circumferential surfaces of the upper connecting seat 401 and the fixed cover plate 402 are respectively provided with an air inlet hole 405, the air inlet hole 405 of the upper connecting seat 401 is communicated with the bottom port of the air guide core 403 through the annular grooves of the upper connecting seat 401 and the gaps between the upper connecting seat 401 and the air guide core 403, so that the air inlet hole 405 of the upper connecting seat 401 is communicated with the bottom port of the air guide core 403, when the air inlet hole 405 of the upper connecting seat 401 is communicated with an air source, nitrogen in the air source can flow to the bottom port of the air guide core 403 sequentially through the air inlet hole 405 of the upper connecting seat 401, the annular grooves of the upper connecting seat 401 and the gaps between the upper connecting seat 401 and the air guide core 403, and then enters the central hole of the upper connecting seat 401, and the air guide core 403 can guide air flow downwards to enable the air flow to continue downwards after entering the upper connecting seat 401 due to the conical bottom of the air guide core 403; the air inlet 405 of the fixed cover plate 402 is communicated with the top port of the air guide core 403 through the annular groove of the fixed cover plate 402 and the gap between the fixed cover plate 402 and the air guide core 403, so that when the air inlet 405 of the fixed cover plate 402 is communicated with the air source, the nitrogen in the air source can flow to the top port of the air guide core 403 through the air inlet 405 of the fixed cover plate 402, the annular groove of the fixed cover plate 402 and the gap between the fixed cover plate 402 and the air guide core 403 in sequence, and then enter the central hole of the fixed cover plate 402, and because the top of the air guide core 403 is also cone-shaped, the air guide core 403 can guide the air flow to flow upwards, so that the air flow continues upwards after entering the fixed cover plate 402, and the air guide core 403 and the upper connecting seat 401 below the fixed cover plate 402 are prevented from entering the outside air through the upward flowing air flow, so that the oxygen content in the downward flowing air is controlled. The upper connecting seat 401 is fixedly connected with the LED lamp box 1 and is sleeved with the glass tube 2.
The lower exhaust mechanism 5 consists of a lower connecting seat 501, a sleeve 502, a lower air guide plate 503, a lower air inlet cover plate 504 and an outlet plate 505, wherein the lower connecting seat 501 is sleeved with the glass tube 2 and fixedly connected with the LED lamp box 1; the lower connecting seat 501 is sleeved with a sleeve 502, and the sleeve 502 is fixedly connected with an outer flange on the lower connecting seat 501 through a fixing bolt; the sleeve 502 is provided with a lower extraction opening 506, and the lower extraction opening 506 is connected with a fan, so that the sleeve 502 is extracted through the fan and the lower extraction opening 506. The lower extraction opening 506 is provided with a lower measurement opening 507 so as to sample the gas entering the lower extraction opening 506 through the lower measurement opening 507, thereby adjusting the extraction amount of the lower extraction opening 506 according to the volatile content and the oxygen content in the gas: when the content of volatile matters or oxygen in the gas is higher than a set value, the rotating speed of a fan connected with the lower exhaust port 506 is regulated, and the exhaust amount at the lower exhaust port 506 is increased. The bottom end of the lower connecting seat 501 is uniformly provided with vent holes 508, the vent holes 508 are communicated with the lower extraction opening 506 through an annulus between the lower connecting seat 501 and the sleeve 502, so that the lower extraction opening 506 can extract air from the glass tube 2 through the annulus between the sleeve 502 and the lower connecting seat 201, the vent holes 508 and the central hole of the lower connecting seat 501 in sequence, and on one hand, nitrogen in the glass tube 2 is recovered, and on the other hand, volatile substances in the glass tube 2 are discharged; the bottom of the sleeve 502 is fixedly provided with a lower air guide plate 503 through a fixing bolt, the bottom of the lower air guide plate 503 is fixedly provided with a lower air inlet cover plate 504, and the bottom of the lower air inlet cover plate 504 is fixedly provided with an outlet plate 505; the outlet plate 505, the lower air inlet cover plate 504, the lower air guide plate 503, the sleeve 502 and the central hole of the lower connecting seat 501 are communicated with each other; the diameter of the central hole of the outlet plate 505 gradually decreases from the top end surface to the bottom end surface, so as to reduce the communication area between the central hole of the outlet plate 505 and the outside, on one hand, reduce the leakage amount of the gas flowing downwards from the bottom of the outlet plate 505, and on the other hand, reduce the entering amount of the outside air into the central hole of the outlet plate 505. The bottom of the lower air guide plate 503 is provided with conical protruding parts, and the outer walls of the protruding parts and the inner walls of the central holes of the lower air inlet cover plate 504 are arranged at intervals in parallel, so that gaps exist between the protruding parts and the lower air inlet cover plate 504, and air can flow from the gaps between the protruding parts and the lower air inlet cover plate 504 to the central holes between the lower air inlet cover plate 504; since the protruding portion is cone-shaped, the protruding portion can guide the air flow to flow downwards, so that the air flow continues to flow downwards after entering the lower inlet cover plate 504, and the air flow flowing downwards prevents external air from entering the lower inlet cover plate 504 and above the lower inlet cover plate 504, so that the oxygen content in the air above the lower inlet cover plate 504 is controlled. The lower inlet cover plate 504 outside the protruding part is provided with a ring groove, the circumferential surface of the lower inlet cover plate 504 is provided with a lower inlet 509, and the lower inlet 509 is sequentially connected with the ring groove of the lower inlet cover plate 504, the gap between the lower inlet cover plate 504 and the protruding part and the central hole of the lower inlet cover plate 504, so that an air source communicated with the lower inlet 509 is communicated with the central hole of the lower inlet cover plate 504 through the lower inlet 509.
The optical fiber UV curing device cures the coating on the optical fiber through the multi-section UV curing furnace, so that the curing effect can be effectively ensured; the glass tubes 2 are connected in series through the series mechanism 3, and only two glass tube ports between the multiple glass tubes 2 can be communicated with the outside through the series mechanism 3, so that nitrogen can only flow outwards at the two glass tube 2 ports, and compared with the situation that each glass tube 2 port can be communicated with the outside, the loss of nitrogen can be effectively reduced, the recovery of nitrogen can be greatly improved, waste can be effectively reduced, and the production cost of optical fibers can be reduced; the gas in the glass tube can be extracted through the serial mechanism 3 and the lower exhaust mechanism 5, so that volatile matters in the glass tube 2 are extracted, the glass tube is ensured to be clean, the light transmittance is ensured, and the curing effect can be effectively ensured; the nitrogen can be supplemented in the air extraction process through the serial mechanism 3, so that the air in the glass tube 2 is replaced, and the volatile matters in the glass tube 2 are discharged in a replacement mode, so that the environment in the glass tube 2 is ensured to be clean; solves the problems of serious nitrogen loss, large waste and high production cost of the optical fiber of the prior device.
Claims (10)
1. The utility model provides an optic fibre UV solidification equipment, it comprises the UV curing oven of multisection series connection, and the UV curing oven includes LED lamp house (1) and glass pipe (2), its characterized in that: the glass tubes (2) are connected through a series mechanism (3), an upper air inlet mechanism (4) is arranged at the upper end port of the upper glass tube (2), and a lower air outlet mechanism (5) is arranged at the lower end port of the lower glass tube (2); the series mechanism (3) consists of a smoke extraction hood, a lower connector and an upper connector, wherein the lower connector is arranged at the upper end of the smoke extraction hood, and the upper connector is arranged at the lower end of the smoke extraction hood; the upper connector, the smoke extraction hood and the lower connector are communicated with each other.
2. An optical fiber UV curing apparatus according to claim 1, wherein: the smoke exhaust cover consists of symmetrically arranged holding tiles (301) and exhaust openings (302) arranged on any holding tile (301), the holding tiles (301) are connected through fixing bolts, and the exhaust openings (302) are communicated with the annular space between the holding tiles (301); the exhaust port (302) is provided with a measuring port (303).
3. An optical fiber UV curing apparatus according to claim 1, wherein: the lower connector consists of a lower port fixing sleeve (304), a lower port seat (305), a spring (306), a lamp box lower connecting plate (307) and a baffle plate (308), wherein the lower port seat (305) is inserted on the lower port fixing sleeve (304), and the spring (306) is arranged between the bottom port of the lower port seat (305) and a limit shoulder arranged on the inner wall of the lower port fixing sleeve (304); a lower outer flange (309) is arranged on the circumference of the lower opening fixing sleeve (304), a lamp box lower connecting plate (307) is sleeved at the end head of the lower opening fixing sleeve (304) above the lower outer flange (309), and the lamp box lower connecting plate (307) is fixedly connected with the lower outer flange (309) through a fixing bolt; a baffle (308) is fixedly arranged on the top end surface of the lower lamp box connecting plate (307) through a fixing bolt, and the baffle (308) is in abutting connection with the lower port seat (305); the lower port seat (305) is connected with the end head of the glass tube (2) in a sleeved mode, and the glass tube (2) is communicated with the central hole of the lower port fixing sleeve (304) through the lower port seat (305); the bottom end of the lower opening fixing sleeve (304) is connected with the annular space between the holding tile (301) in an inserting way; the lower connector is fixedly connected with the LED lamp box (1) through a lamp box lower connecting plate (307).
4. An optical fiber UV curing apparatus according to claim 1, wherein: the upper connector consists of an upper opening base (310), an upper opening air inlet cover plate (311) and a lamp box upper connecting plate (312), wherein the upper opening base (310) is in a funnel shape, an upper opening air inlet cover plate (311) is fixedly arranged at an upper end port of the upper opening base (310) through a fixing bolt, an upper outer flange (313) is arranged on the circumference of the upper opening base (310), the lamp box upper connecting plate (312) is sleeved on the upper opening base (310) below the upper outer flange (313), and the lamp box upper connecting plate (312) is fixedly connected with the upper outer flange (313) through the fixing bolt; the bottom port of the upper opening base (310) is connected with the glass tube (2) in a sleeved mode, and the glass tube (2) is communicated with the central hole of the upper opening air inlet cover plate (311) through the upper opening base (310); the annular space between the top end of the upper inlet cover plate (311) and the enclasping tile (301) is connected in an inserting way; the upper connector is fixedly connected with the LED lamp box (1) through a lamp box upper connecting plate (312).
5. An optical fiber UV curing apparatus according to claim 4, wherein: and a ventilation opening (314) is arranged on the upper opening base (310) above the upper outer flange (313), and the ventilation opening (314) is communicated with a central hole of the upper opening base (310).
6. An optical fiber UV curing apparatus according to claim 1, wherein: the upper air inlet mechanism (4) consists of an upper connecting seat (401), a fixed cover plate (402), an air guide core (403) and an inlet wire plate (404), wherein the fixed cover plate (402) is fixedly arranged on the upper connecting seat (401) through a fixed bolt, and the air guide core (403) is arranged between the fixed cover plate (402) and the upper connecting seat (401); the top end surface of the fixed cover plate (402) is fixedly provided with a wire inlet plate (404) through a fixed bolt, and the wire inlet plate (404), the fixed cover plate (402), the air guide core (403) and the central hole of the upper connecting seat (401) are mutually communicated; the upper connecting seat (401) is fixedly connected with the LED lamp box (1) and is sleeved with the glass tube (2).
7. An optical fiber UV curing apparatus according to claim 6, wherein: the circumferences of the upper connecting seat (401) and the fixed cover plate (402) are respectively provided with an air inlet hole (405), and the air inlet hole (405) of the upper connecting seat (401) is communicated with the bottom port of the air guide core (403); an air inlet hole (405) of the fixed cover plate (402) is communicated with a top port of the air guide core (403).
8. An optical fiber UV curing apparatus according to claim 1, wherein: the lower exhaust mechanism (5) consists of a lower connecting seat (501), a sleeve (502), a lower air guide plate (503), a lower air inlet cover plate (504) and an outlet plate (505), wherein the sleeve (502) is sleeved on the lower connecting seat (501), and the sleeve (502) is fixedly connected with an outer flange on the lower connecting seat (501) through a fixing bolt; the bottom of the sleeve (502) is fixedly provided with a lower air guide plate (503) through a fixing bolt, the bottom of the lower air guide plate (503) is fixedly provided with a lower air inlet cover plate (504), and the bottom of the lower air inlet cover plate (504) is fixedly provided with an outlet plate (505); the central holes of the outlet plate (505), the lower air inlet cover plate (504), the lower air guide plate (503), the sleeve (502) and the lower connecting seat (501) are communicated with each other; the lower connecting seat (501) is connected with the glass tube (2) in a sleeved mode and is fixedly connected with the LED lamp box (1).
9. An optical fiber UV curing apparatus according to claim 8, wherein: a lower extraction opening (506) is formed in the sleeve (502), and a lower measuring opening (507) is formed in the lower extraction opening (506); the bottom end of the lower connecting seat (501) is uniformly provided with vent holes (508), and the vent holes (508) are communicated with the lower extraction opening (506) through an annulus between the lower connecting seat (501) and the sleeve (502).
10. An optical fiber UV curing apparatus according to claim 8, wherein: the lower air inlet cover plate (504) is provided with a lower air inlet (509) on the circumferential surface, and the lower air inlet (509) is communicated with the central hole of the lower air inlet cover plate (504).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310029390.4A CN116375359A (en) | 2023-01-09 | 2023-01-09 | Optical fiber UV curing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310029390.4A CN116375359A (en) | 2023-01-09 | 2023-01-09 | Optical fiber UV curing device |
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| Publication Number | Publication Date |
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| CN116375359A true CN116375359A (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310029390.4A Pending CN116375359A (en) | 2023-01-09 | 2023-01-09 | Optical fiber UV curing device |
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| CN (1) | CN116375359A (en) |
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| CN210457970U (en) * | 2019-08-12 | 2020-05-05 | 上海昱品通信科技股份有限公司 | Fast-assembling auxiliary device of optical fiber ultraviolet curing furnace joint |
| CN111135994A (en) * | 2020-01-20 | 2020-05-12 | 南京华信藤仓光通信有限公司 | Novel wire drawing UV lamp solidification device |
| CN111153605A (en) * | 2020-03-10 | 2020-05-15 | 合肥大成通信设备有限公司 | Harvard type UV-LED optical fiber coloring and curing device |
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2023
- 2023-01-09 CN CN202310029390.4A patent/CN116375359A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003089381A2 (en) * | 2001-10-04 | 2003-10-30 | Pirelli Communications Cables And Systems Usa, Llc | Apparatus for coloring and curing an optical fiber and nitrogen injection assembly for use therein |
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