CN210176732U - High-temperature-resistant optical fiber production equipment - Google Patents
High-temperature-resistant optical fiber production equipment Download PDFInfo
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- CN210176732U CN210176732U CN201920489292.8U CN201920489292U CN210176732U CN 210176732 U CN210176732 U CN 210176732U CN 201920489292 U CN201920489292 U CN 201920489292U CN 210176732 U CN210176732 U CN 210176732U
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Abstract
The utility model discloses a high temperature resistant optic fibre production facility, its structure includes the pylon, the high temperature graphite heating furnace, the optic fibre diameter measuring appearance, the photocuring system, thermosetting system, optic fibre is put fine system and optic fibre and is received fine system, the pylon top is equipped with and send excellent device, it is equipped with the high temperature graphite heating furnace to send excellent device below, one side of high temperature graphite heating furnace is equipped with puts fine system, the below of high temperature graphite heating furnace is equipped with photocuring system and thermosetting system, photocuring system and thermosetting system place and slidable mounting on same support in parallel, the below of high temperature graphite heating furnace still is equipped with first diameter measuring appearance, the below of photocuring system and thermosetting system is equipped with optic fibre and receives fine system. The curing mode of the optical fiber coating material of the equipment can select thermal curing or light curing, and can also be a combined mode of thermal curing and light curing, so that the equipment for manufacturing the resin coated optical fiber can accurately control the coating outer diameter and the concentricity, flexibility and convenience of the coating layer.
Description
Technical Field
The utility model belongs to the technical field of the optic fibre and specifically relates to high temperature resistant optic fibre production facility.
Background
In recent years, the demand for high-temperature resistant optical fiber cables is increasing in special occasions such as ocean development, petroleum, mines, metallurgy, national defense and the like and in a plurality of new fields; in addition, with the development of optical fiber technology, the application of optical fibers extends to the technical field of sensing, the application range mainly relates to severe environments such as high-temperature environment, and the like, and the optical fibers with the conventional acrylate coatings cannot adapt to the severe environments with high temperature; therefore, the development of a high temperature optical fiber with a high temperature resistance of more than 200 ℃ is a problem to be solved.
At present, the conventional production equipment and process for communication optical fibers cannot meet the production of high-temperature optical fibers, and the conventional related production equipment is complex, high in failure rate, expensive in equipment and the like, so that special optical fiber production equipment and production process need to be researched.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature resistant optic fibre production facility mainly solves the not good control scheduling problem of current polyimide coating optical fiber equipment complicacy, function singleness, technology. The curing mode of the optical fiber coating material of the equipment can select thermal curing or light curing, and can also be a combined mode of thermal curing and light curing, so that the equipment for manufacturing the resin coated optical fiber can accurately control the coating outer diameter and the concentricity, flexibility and convenience of the coating layer.
The utility model provides a technical scheme that its technical problem adopted is: high temperature resistant optical fiber production facility, its structure includes pylon, high temperature graphite heating furnace, optic fibre calibrator, photocuring system, thermosetting system, optic fibre system and optic fibre system of receiving, the pylon top is equipped with send excellent device, it is equipped with the high temperature graphite heating furnace to send excellent device below, one side of high temperature graphite heating furnace is equipped with puts the fine system, and the below of high temperature graphite heating furnace is equipped with photocuring system and thermosetting system, photocuring system and thermosetting system are placed and slidable mounting on same support in parallel, the below of high temperature graphite heating furnace still is equipped with first calibrator, and one side of the below of photocuring system and thermosetting system is equipped with the second calibrator, and the below of photocuring system and thermosetting system is equipped with optic fibre system of receiving.
Further, the light curing system is provided with two sets, the thermosetting system is provided with four sets, the first light curing system and the first thermosetting system are horizontally arranged in parallel and are arranged on the same support in a sliding mode, the second light curing system and the second thermosetting system are horizontally arranged below the first light curing system and the first thermosetting system in a parallel mode and are arranged on the same frame in a sliding mode, the third thermosetting system is arranged below the second light curing system and the second thermosetting system, the fourth thermosetting system is arranged below the third thermosetting system, and second diameter measuring instruments are respectively arranged below the first light curing system and the first thermosetting system and below the fourth thermosetting system.
Further, the light curing system comprises a coating device, an ultraviolet lamp curing oven, an air supply system and an air exhaust system, wherein the built-in ultraviolet lamp curing oven is arranged below the coating device, the air supply system is arranged below the ultraviolet lamp curing oven, and the air exhaust system is arranged above the ultraviolet lamp curing oven.
Further, the thermosetting system comprises a coating device, an induction heating furnace, an air supply system and an air exhaust system, the induction heating furnace is arranged below the coating device, the air supply system and the air exhaust system are arranged below the induction heating furnace, and a quartz tube is arranged in the induction heating furnace.
Further, the coating device is pressure type coating, can XYZ three direction removal, including thermostatic bath, coating jar, water bath, coating pipe-line system, manual valve of cutting to, be equipped with level sensor on the coating jar, be equipped with pressure sensor on the coating pipe-line system.
Furthermore, the optical fiber paying-off system adopts a swing rod type dancer to pay off actively, and the motor drives the dancer to realize automatic paying-off of the optical fiber.
Furthermore, fine system is received to optic fibre includes that tension pulley, leading wheel, tractor, receipts line dancer and admission machine constitute, receive line dancer and be many rounds of pendulum rod type structure, the guide pulley top is located to the tension pulley, and leading wheel, tractor, receipts line dancer and admission machine are "a word" shape and arrange.
The utility model has the advantages that:
(1) coating the optical fiber by adopting different resin coating materials such as common acrylate, high-temperature acrylate, a heat-resistant silicon rubber coating, polyimide and the like to prepare the optical fiber in different application occasions; meanwhile, the resin such as common acrylate, high-temperature acrylate, heat-resistant silicon rubber, polyimide and the like can be adopted to carry out combination of different coatings to prepare the high-performance special optical fiber.
(2) The optical fiber coating can be coated, cured and detected for multiple times through the on-line coating and curing device, so that the diameter of the coating and the concentricity of the coating and the optical fiber cladding of the produced optical fiber can be accurately controlled; the light curing and heat curing system of the equipment can be used repeatedly, repeated equipment purchase is avoided, and funds are saved.
(3) The preparation process of the wire drawing tower only adopts on-line equipment coating, saves equipment and land, is not limited by a field, and has higher flexibility and convenience.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure:
the device comprises a tower frame 1, a rod feeding device 2, a high-temperature graphite heating furnace 3, an optical fiber releasing system 4, a first diameter measuring instrument 5, auxiliary traction 6, a constant-temperature water tank 7, a coating tank 7, a light curing coating device 8, a light curing system 9, a heat curing system 10, a water bath tank 11, a heat curing coating device 12, a light curing system 12, a heat curing system 13, a second diameter measuring instrument 13, a tension wheel 14, a guide wheel 15, a traction machine 16, a take-up dancer 17 and a take-up machine 18.
Detailed Description
The high temperature resistant optical fiber production apparatus of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a high temperature resistant optic fibre production facility, put fine system 4 and optic fibre and receive fine system including pylon 1, high temperature graphite heating furnace 3, optic fibre calliper, photocuring system, thermosetting system, optic fibre, 1 top of pylon is equipped with and send excellent device 2, it is equipped with high temperature graphite heating furnace 3 to send excellent device 2 below, one side of high temperature graphite heating furnace 3 is equipped with puts fine system, and the below of high temperature graphite heating furnace is equipped with photocuring system and thermosetting system, photocuring system and thermosetting system are placed and slidable mounting on same support side by side, the below of high temperature graphite heating furnace still is equipped with first calliper 5, and below one side of photocuring system and thermosetting system is equipped with second calliper 13, and the below of photocuring system and thermosetting system is equipped with optic fibre and receives fine system.
The high-temperature graphite heating furnace 3 is a 30-graphite heating furnace and is suitable for phi 20-32mm preforms, and comprises a furnace body, an Ar and helium mixed gas supply control system, a temperature measurement system, a vacuum pumping system, a water cooling system, a control power supply, an annealing pipe and the like; heating temperature: (1200-2300) DEG C, temperature control precision: +/-1 ℃, heating power: less than or equal to 30kw, a vacuum pumping system, a vacuum degree of-0.8 bar, a furnace cooling water source and an Ar gas source, a water pressure of 2.5bar, a flow rate of 80L/min, a pressure of 4bar of the Ar gas source, and a flow rate of 40L/min. The water cooling system is wholly enclosed, the cooling pipe is a customized aluminum profile, hollow cooling water channels are arranged around the cooling pipe, and when the optical fiber passes through the inner hole of the profile, inert gas can be introduced into the side face of the optical fiber to achieve the effect of optical fiber cooling. The cooling tube length is 1000 mm. The cooling pipe adopts a fixed frame, and the central aperture phi of the cooling pipe is 20 mm. The flow rate of He is controlled by a float flowmeter, an independent 1P circulating water cooler is configured, the pressure of a gas source is 4bar, and the flow rate is 20L/min.
The light curing system is provided with two sets, the thermosetting system is provided with four sets, the first set of light curing system and the first set of thermosetting system 9 are horizontally arranged in parallel, the light curing system is arranged on the same support in a sliding mode, the second set of light curing system and the second set of thermosetting system 12 are horizontally arranged below the first set of light curing system and the first set of thermosetting system in a parallel mode, the light curing system is arranged on the same support in a sliding mode, the third set of thermosetting system is arranged below the second set of light curing system and the second set of thermosetting system, the fourth set of thermosetting system is arranged below the third set of thermosetting system, and the second diameter measuring instrument 13 is respectively arranged below the first set of light curing system and the first set of thermosetting system and below the fourth set of thermosetting system. The selection is made according to the use requirement of a sliding thermal curing system and a light curing system. And an auxiliary traction 6 is arranged below the second diameter gauge, so that the bare optical fiber can be conveniently conveyed.
The light curing system comprises a coating device, an ultraviolet lamp curing oven, an air supply system and an air exhaust system, wherein the built-in ultraviolet lamp curing oven is arranged below the coating device, the air supply system is arranged below the ultraviolet lamp curing oven, and the air exhaust system is arranged above the ultraviolet lamp curing oven. An ultraviolet lamp curing oven is adopted, the power is continuously adjustable, the nitrogen consumption is less than or equal to 1.6L/min, and a float flowmeter is adopted for controlling; the bracket is shared with thermocuring and can move left and right, and an air draft fan and a hose are arranged; the curing oven is provided with a distributor of an air draft and smoke exhaust pipeline and a hand valve for adjusting air quantity.
The thermocuring system comprises a coating device, an induction heating furnace, an air supply system and an air exhaust system, wherein the induction heating furnace is arranged below the coating device, the air supply system and the air exhaust system are arranged below the induction heating furnace, and a quartz tube is arranged in the induction heating furnace. The length of the heating furnace is 600mm-1000mm, the temperature is 0-1100 ℃, the power is continuously adjustable, and the nitrogen consumption is as follows: less than or equal to 1.6L/min. A bracket is provided, and a power controller is configured.
A smoke exhaust main pipeline of the heating furnace is integrated to a distributor of a photocuring air exhaust and smoke exhaust pipeline, a hand valve is configured to adjust air quantity, and the diameter of a pipeline interface is phi 74 mm.
The light-cured coating device 8 is a pressure type coating device, and the coating die can move in X, Y, Z three directions to ensure that the optical fiber coating layers are coaxial. The automatic coating device comprises a constant-temperature water tank, a coating tank 7, a water bath tank 10, a coating pipeline system and a manual cut-off valve, wherein a liquid level sensor is arranged on the coating tank, and a pressure sensor is arranged on the coating pipeline system. Heating in water bath, and regulating and controlling the coating pressure by an electric proportional valve. The coating pressure can be automatically adjusted according to the production line speed, the coating pressure can also be automatically set, the temperature is automatically set by the constant-temperature water bath box, and the temperature is directly displayed. And after no material exists in the coating tank, a material shortage alarm is displayed and is displayed on a PC (personal computer). The coating tank has the function of directly displaying the numerical value of the material level.
Photocuring coating device in curing system: air source pressure: not less than 4 bar; heating range of cup coating water bath: (30-60) DEG C +/-1 ℃; coating pressure control range: (0.25-4.0) bar; coating pressure control accuracy: 0.1 bar.
The thermosetting coating device 11 is a pressure type coating device, and the three directions of the coating die X, Y, Z can be adjusted to ensure that the optical fiber coating layers are coaxial. Heating in water bath, and regulating and controlling the coating pressure by an electric proportional valve. And a liquid level sensor, a water bath tank, a coating pipeline system and a manual stop valve are arranged. The coating pressure can be automatically adjusted according to the production line speed, and can also be automatically set, and a pressure sensor is arranged on a pipeline. The constant temperature water tank automatically sets the temperature, and the temperature is displayed on the spot. And after no material exists in the coating tank, a material shortage alarm is displayed and is displayed on a PC (personal computer). The coating tanks all have the function of displaying the material level on-site numerical value.
Thermal curing coating apparatus 11 in curing system: air source pressure: not less than 4 bar; heating range of cup coating water bath: (30-60) DEG C +/-1 ℃; coating pressure control range: (0.25-4.0) bar; coating pressure control accuracy: 0.1 bar.
The optical fiber paying-off system adopts a swing rod type dancer to pay off actively, and the motor drives the dancer to realize automatic paying-off of the optical fiber. Paying off the optical fiber to automatically track the wire groove center of the guide wheel; the paying-off and optical fiber automatic tracking driving motor adopts a high-precision motor.
The optical fiber take-up system comprises a tension wheel 14, a guide wheel 15, a traction machine 16, a take-up dancer 17 and a take-up machine 18, the take-up dancer 17 is of a multi-wheel swing rod type structure, the tension wheel 14 is arranged above the guide wheel 15, and the guide wheel, the traction machine, the take-up dancer and the take-up machine are arranged in a straight shape. The dancer adopts a multi-wheel swing rod type structure, the length of a stored wire is larger than 600mm, the swing angle of a swing rod is changed, and the synchronization of the traction linear speed and the take-up speed is coordinated. The take-up and pay-off rack device is driven by an alternating current servo motor, and drives an optical fiber disc to rotate through a planetary reducer with a large speed ratio, so that the optical fiber disc is manually loaded up and down and is manually clamped. The walking type wire arranging structure is characterized in that a wire arranging motor is an alternating current servo motor, a ball screw is driven by a speed reducer to arrange wires, a proximity switch is reversed, and an independent electric cabinet is arranged. The take-up speed of the optical fiber take-up system is as follows: 2-500 m/min; the row line pitch: 0.1-1.5 mm; take-up tension: 10-100 g; the weight of the full dish is as follows: 10 kg; specification of wire coils: 200 Km.
Pay-off and optical fiber automatic tracking driving motor: an AC servo motor and a driver are selected. The tray loading mode is a shaftless rapid pneumatic chuck; the pay-off tension range is as follows: 10-60 g.
The preparation method of the high-temperature resistant optical fiber comprises the following steps:
(1) melting and drawing the optical fiber preform by using a graphite furnace, wherein the heating temperature is 1700-2200 ℃; wherein, the optical fiber preform for drawing can be different types of optical rods, and the outer diameter size range of the optical fiber preform is phi 20-30 mm; the wire drawing speed is 4-400 m/min.
(2) And naturally cooling after melt drawing, and then, entering a first coating die for coating a resin coating once to obtain the optical fiber. The coating is injected into the mold from a reservoir by air pressure control. The optical fibers with different coating thicknesses correspond to different coating outlet die sizes so as to ensure the accuracy of the coating size.
(3) Curing the optical fiber coated with the resin coating by using a light or heat curing system; and performing secondary resin coating on the optical fiber through a second coating die to obtain the optical fiber, then curing, and repeating the primary coating and curing.
(4) The coating resin adopts the polyimide thermosetting mode, the coating times can be selected according to the coating outer diameter of the optical fiber, and when the requirement on the outer diameter of the optical fiber cannot be met after the optical fiber is coated on the coating resin on line, the optical fiber is coated on the optical fiber again through the optical fiber placing platform after the optical fiber is taken up and wound on a coil until the outer diameter of the optical fiber meets the requirement.
(5) The optical fiber can be cured by photocuring with a photocured inner coating, and the outer coating is cured by thermal curing with a thermal curing resin; it is also possible to use a thermally curable inner coating layer by thermal curing and an outer coating layer by photo-curing using a photo-curable resin.
(6) And finally, after the outer diameter of the optical fiber meets the requirement, winding the optical fiber on an optical fiber disc by using an automatic take-up device, and finishing the manufacture of the high-temperature resistant optical fiber.
The outer diameter of the optical fiber perform is phi 20-32mm, and the rod feeding speed of the perform is 0.1-20 mm/min; the drawing speed is 2-400 m/min.
The coating material can be acrylic resin, ultraviolet light curing or heat-resistant silica gel coating, or polyimide resin or thermocuring. For example, common acrylate (long-term 80 ℃ and short-term 100 ℃), high-temperature acrylate (long-term 150 ℃ and short-term 200 ℃), heat-resistant silicone rubber coating (long-term 180 ℃ and short-term 200 ℃), polyimide coated optical fiber (long-term 300 ℃ and short-term 350 ℃), the surface of the bare optical fiber is coated, optical fiber coatings of different material combinations can be prepared according to actual requirements, optical fibers with different temperature resistance from room temperature to 350 ℃ can be prepared, and the optical fibers are stable in temperature resistance and can be used in severe environments for a long time.
The utility model discloses an equipment of manufacturing resin coating optic fibre that equipment can accurate control coating external diameter and coat layer concentricity, flexibility and convenience.
The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.
Other technical features than those described in the specification are known to those skilled in the art.
Claims (7)
1. High temperature resistant optical fiber production facility, characterized by, including pylon, high temperature graphite heating furnace, optic fibre calibrator, photocuring system, thermosetting system, optic fibre system and optic fibre system of receiving, the pylon top is equipped with send excellent device, it is equipped with the high temperature graphite heating furnace to send excellent device below, one side of high temperature graphite heating furnace is equipped with puts the fine system, and the below of high temperature graphite heating furnace is equipped with photocuring system and thermosetting system, photocuring system and thermosetting system are placed and slidable mounting on same support in parallel, the below of high temperature graphite heating furnace still is equipped with first calibrator, and one side of the below of photocuring system and thermosetting system is equipped with the second calibrator, and the below of photocuring system and thermosetting system is equipped with optic fibre system of receiving.
2. The high-temperature-resistant optical fiber production equipment as claimed in claim 1, wherein two sets of the photo-curing systems are provided, four sets of the thermosetting systems are provided, the first set of the photo-curing systems and the first set of the thermosetting systems are horizontally arranged in parallel and are slidably mounted on the same bracket, the second set of the photo-curing systems and the second set of the thermosetting systems are horizontally arranged in parallel below the first set of the photo-curing systems and the first set of the thermosetting systems and are slidably mounted on the same bracket, the third set of the thermosetting systems are mounted below the second set of the photo-curing systems and the second set of the thermosetting systems, the fourth set of the thermosetting systems is mounted below the third set of the thermosetting systems, and the second calipers are respectively arranged below the first set of the photo-curing systems and the first set of the thermosetting systems and below the fourth set of the thermosetting systems.
3. The high-temperature-resistant optical fiber production device as claimed in claim 1 or 2, wherein the light curing system comprises a coating device, an ultraviolet lamp curing oven, an air supply system and an air exhaust system, the ultraviolet lamp curing oven is arranged below the coating device, the air supply system is arranged below the ultraviolet lamp curing oven, and the air exhaust system is arranged above the ultraviolet lamp curing oven.
4. The apparatus of claim 1 or 2, wherein the thermal curing system comprises a coating device, an induction heating furnace, an air supply system and an air exhaust system, the induction heating furnace is disposed below the coating device, the air supply system and the air exhaust system are disposed below the induction heating furnace, and the induction heating furnace is internally provided with a quartz tube.
5. The apparatus of claim 3, wherein the coating device is a pressure-type coating device capable of moving in three directions of XYZ, and comprises a constant-temperature water tank, a coating tank, a water bath tank, a coating pipeline system, and a manual stop valve, wherein the coating tank is provided with a liquid level sensor, and the coating pipeline system is provided with a pressure sensor.
6. The apparatus for producing high temperature resistant optical fiber according to claim 1, wherein the optical fiber paying off system adopts a pendulum rod type dancer to pay off the optical fiber actively, and a motor drives the dancer to realize automatic paying off of the optical fiber.
7. The high-temperature-resistant optical fiber production device as claimed in claim 1, wherein the optical fiber take-up system comprises a tension wheel, a guide wheel, a traction machine, a take-up dancer and a take-up machine, the take-up dancer is of a multi-wheel swing rod type structure, the tension wheel is arranged above the guide wheel, and the guide wheel, the traction machine, the take-up dancer and the take-up machine are arranged in a shape of a Chinese character 'yi'.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920489292.8U CN210176732U (en) | 2019-04-11 | 2019-04-11 | High-temperature-resistant optical fiber production equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920489292.8U CN210176732U (en) | 2019-04-11 | 2019-04-11 | High-temperature-resistant optical fiber production equipment |
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| CN210176732U true CN210176732U (en) | 2020-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970363A (en) * | 2019-04-11 | 2019-07-05 | 山东太平洋光纤光缆有限公司 | High-temperature resistant optical fiber production equipment and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970363A (en) * | 2019-04-11 | 2019-07-05 | 山东太平洋光纤光缆有限公司 | High-temperature resistant optical fiber production equipment and preparation method |
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