CN116639870A - Rotary optical fiber preparation device and method - Google Patents
Rotary optical fiber preparation device and method Download PDFInfo
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- CN116639870A CN116639870A CN202310512776.0A CN202310512776A CN116639870A CN 116639870 A CN116639870 A CN 116639870A CN 202310512776 A CN202310512776 A CN 202310512776A CN 116639870 A CN116639870 A CN 116639870A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 291
- 238000002360 preparation method Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 89
- 238000010438 heat treatment Methods 0.000 claims abstract description 55
- 238000000576 coating method Methods 0.000 claims abstract description 41
- 239000011248 coating agent Substances 0.000 claims abstract description 39
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000007306 turnover Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 19
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/03—Drawing means, e.g. drawing drums ; Traction or tensioning devices
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The invention relates to the technical field of optical fiber preparation, and provides a rotary optical fiber preparation device and a rotary optical fiber preparation method, wherein the rotary optical fiber preparation device comprises a feeding assembly, a heating furnace, a coating curing assembly, a rotary driving assembly and a fiber collecting assembly which are sequentially arranged from top to bottom; the feeding assembly is used for driving the optical fiber preform rod to extend into the heating furnace; the optical fiber preform after melting and softening can be drawn into a bare fiber, and the coating and solidifying assembly is used for coating and solidifying the bare fiber to change the bare fiber into an optical fiber; the rotary driving assembly drives the optical fiber to rotate through two rotary discs; the fiber collecting assembly is used for collecting the rotated optical fibers. According to the rotary optical fiber preparation device and method, the optical fiber preform is melted and softened by the heating furnace, the melted and softened optical fiber preform is drawn into the bare fiber, the bare fiber is changed into the optical fiber after being coated and solidified, the two rotating discs drive the optical fiber to rotate together, so that the rotary optical fiber is obtained, the rotary optical fiber is stored by the fiber collecting assembly, and the problem that the optical fiber is not up to standard due to shaking in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of optical fiber preparation, in particular to a rotary optical fiber preparation device and method.
Background
At present, the conventional optical fiber for the high-power optical fiber laser is easy to generate a mode instability (TMI) effect under high power due to the larger fiber core diameter, so that the further improvement of the optical fiber beam quality and the output power is seriously restricted. To solve this problem, a rotating optical fiber (3C optical fiber) has been developed, and is widely used in the field of high-power single-mode lasers because of its high-efficiency high-mode coupling capability with a special structure. The 3C optical fiber can realize stable single-mode transmission under high power under the condition of large core diameter, because the rotary optical fiber manufactured by the special process has a unique characteristic compared with the conventional optical fiber, the rotary optical fiber not only comprises a central fiber core, but also comprises side cores, the side cores are in spiral winding structures around the central fiber core, the spiral period introduced by the high-speed rotary optical fiber preform rod during drawing can provide effective symmetrical and selective coupling capacity of high-order modes between the central fiber core and the side cores, the high-order modes of the central fiber core are coupled to the side cores so as to be lost, and the central fiber core only leaves the basic mode for stable transmission.
The current rotary optical fiber is prepared by rotating a preform rod in the drawing process, and because the volume of the optical fiber preform rod is large, the centrifugal force generated in the rotating process of the optical fiber preform rod can have a very negative effect on the preparation of the optical fiber, firstly, the centrifugal force enables the melt-softened optical fiber preform rod to deviate from the drawing center line, then, the melt-softened optical fiber preform rod transversely makes circular motion around the drawing center line in the drawing furnace in the drawing process, so that the optical fiber is easy to shake in the downward drawing process, secondly, the melt-softened preform rod rotates in the drawing furnace to cause disturbance on the temperature field in the drawing furnace, so that the drawn optical fiber is heated unevenly, the diameter of the optical fiber fluctuates, the optical fiber performance is influenced, and finally, the prepared rotary optical fiber cannot meet the requirements of practical use, and the production efficiency of the optical fiber is reduced.
Disclosure of Invention
The invention provides a rotary optical fiber preparation device and a rotary optical fiber preparation method, which are used for solving the problems that optical fibers are easy to shake and the quality of the optical fibers is not up to standard due to diameter fluctuation in the drawing and rotating process in the prior art.
In a first aspect, the invention provides a rotary optical fiber preparation device, which comprises a feeding assembly, a heating furnace, a coating curing assembly, a rotary driving assembly and a fiber collecting assembly which are sequentially arranged from top to bottom;
the feeding assembly is used for clamping the optical fiber perform and driving the lower end of the optical fiber perform to extend into the heating furnace, the heating furnace is used for heating the optical fiber perform into a molten softening state, and the optical fiber perform in the molten softening state can form a bare fiber after being drawn;
the coating and curing assembly is used for coating and curing the bare fiber so as to convert the bare fiber into an optical fiber; the rotary driving assembly comprises two rotary driving units, the rotary driving units are provided with rotary discs, the rotary discs corresponding to the two rotary driving units are used for being clamped on opposite sides of the optical fiber in a rotatable mode so as to drive the optical fiber to rotate and move downwards at the same time, the rotary axes of the two rotary discs are arranged at an included angle, and the two rotary discs rotate around the respective rotary axes in the same rotary direction;
the optical fiber collecting assembly is connected with one end of the optical fiber, which is away from the optical fiber preform rod, and is used for collecting the rotated optical fiber.
According to the rotary optical fiber preparation device provided by the invention, the feeding assembly comprises the clamping piece and the feeding piece, the clamping piece is used for clamping the optical fiber preform, the feeding piece is connected with the clamping piece, and the feeding piece is used for driving the clamping piece to move so that one end of the optical fiber preform stretches into the heating furnace.
According to the rotary optical fiber preparation device provided by the invention, the rotary driving unit further comprises a first driving component and a second driving component, wherein the first driving component is connected with the rotary disk, and the second driving component is connected with the first driving component;
the first driving assembly is used for driving the rotating disc to move so as to enable the two rotating discs corresponding to the two rotating driving units to be close to or far away from each other; the second driving component is used for driving the first driving component to turn over so as to change the included angle between the rotating disk and the optical fiber.
According to the rotary optical fiber preparation device provided by the invention, the first driving assembly comprises the first mounting frame and the first driving piece, the rotary disk is rotatably arranged on the first mounting frame, the first mounting frame is connected with the first driving piece, and the first driving piece is used for driving the first mounting frame to drive the rotary disk to move.
According to the rotary optical fiber preparation device provided by the invention, the second driving assembly comprises a second mounting frame, a first gear, a second gear and a second driving piece;
the second mounting frame is connected with the first driving assembly, the second mounting frame is connected with the first gear, the output end of the second driving piece is connected with the second gear, and the second gear is meshed with the first gear.
According to the rotary optical fiber preparation device provided by the invention, the included angles between the optical fibers and the two rotary discs are equal, and the included angle between the rotary discs and the optical fibers is in the range of 0-90 degrees.
According to the rotating optical fiber preparation device provided by the invention, the rotating optical fiber preparation device further comprises at least one guide assembly, wherein the guide assembly comprises two guide wheels, and the two guide wheels are clamped on opposite sides of the optical fiber.
In a second aspect, the present invention also provides a method for preparing a rotating optical fiber, based on any one of the above rotating optical fiber preparing apparatus, including:
the feeding assembly is controlled to clamp the optical fiber preform, and the lower end of the optical fiber preform is driven to extend into the heating furnace, so that the lower end of the optical fiber preform is melted into a molten and softened state;
controlling the heating furnace to heat the optical fiber preform, and simultaneously, primarily drawing the lower end of the optical fiber preform to obtain a bare fiber;
coating and curing the bare fiber by controlling a coating and curing assembly to obtain an optical fiber;
controlling two rotating discs corresponding to the rotating driving assembly to rotate, driving the optical fibers to rotate, and pulling the optical fibers to move downwards;
and controlling the fiber collecting assembly to collect the rotated optical fiber to obtain the rotating optical fiber.
According to the method for preparing the rotary optical fiber provided by the invention, the feeding assembly clamps the optical fiber preform and drives the lower end of the optical fiber preform to extend into the heating furnace, and the method comprises the following steps:
and controlling the feeding assembly to clamp the optical fiber preform, and driving the optical fiber preform to move towards one side of the heating furnace through the feeding assembly to ensure that the lower end of the optical fiber preform is kept in the heating furnace.
According to the rotary optical fiber preparation device, the lower end of the optical fiber preform is fed into the heating furnace through the feeding component, the heating furnace can heat the optical fiber preform into a molten softened state, the optical fiber preform in the molten softened state can be drawn into bare fibers and pass out of the heating furnace, the bare fibers after passing out are converted into optical fibers through the coating and curing component in the coating and curing process, the optical fibers pass through between the two rotating disks and are connected with the fiber collecting component, the two rotating disks jointly drive the optical fibers to rotate, the spiral generated by rotation can be upwards transmitted to the joint of the bare fibers and the optical fiber preform, the bare fibers rotate, the optical fibers (rotary optical fibers) are obtained after the rotating bare fibers are subjected to the coating and curing processes and the like, and the rotary optical fibers are stored through the fiber collecting component. The optical fiber has smaller volume and weight, and the optical fiber is not easy to shake due to centrifugal force during rotation in a mode of rotating the optical fiber to prepare the rotating optical fiber, so that the problem that the quality of the optical fiber is not up to standard due to the fact that the optical fiber easily shakes and the diameter fluctuates in the drawing rotation process in the prior art is effectively solved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a rotary optical fiber preparation apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a rotary driving assembly of a rotary optical fiber preparation device according to an embodiment of the present invention;
FIG. 3 is a force-bearing schematic view of the optical fiber of FIG. 1 subjected to forces from a rotating disk located on the right;
FIG. 4 is a top view force schematic illustration of the optical fiber of FIG. 1 subjected to forces from a rotating disk located on the left;
FIG. 5 is a schematic illustration of the optical fiber of FIG. 1 being subjected to forces from two rotating disks;
fig. 6 is a schematic flow chart of a method for preparing a rotating optical fiber according to an embodiment of the present invention.
Reference numerals:
1. a feeding assembly; 11. a clamping member; 12. a feeding member;
2. a heating furnace;
3. coating a curing assembly;
4. a rotary drive assembly; 41. a rotating disc; 42. a first drive assembly; 421. a first rotating shaft; 422. a first mounting frame; 423. a first driving member; 424. a limit guide rod; 43. a second drive assembly; 431. a second mounting frame; 432. a second rotating shaft; 433. a third rotating shaft; 434. a first gear; 435. a second gear; 436. a second driving member; 44. a third driving member;
5. a fiber collecting assembly; 51. a fourth driving member; 52. a reel;
6. a frame;
7. a guide assembly; 71. a guide wheel;
8. a traction wheel;
200. an optical fiber preform; 300. an optical fiber.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The rotary optical fiber preparation device of the present invention is described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, the present invention provides a rotary optical fiber preparation device, which comprises a feeding assembly 1, a heating furnace 2, a coating curing assembly 3, a rotary driving assembly 4 and a fiber collecting assembly 5, which are sequentially arranged from top to bottom; the feeding component 1 is used for clamping the optical fiber preform 200 and driving the lower end of the optical fiber preform 200 to extend into the heating furnace 2, the heating furnace 2 is used for heating the optical fiber preform 200 into a molten softening state, and the optical fiber preform 200 in the molten softening state can form bare fibers after being drawn; the coating and curing assembly 3 is used for coating and curing the bare fiber so as to convert the bare fiber into an optical fiber 300; the rotary driving assembly 4 comprises two rotary driving units, the rotary driving units are provided with rotary discs 41, the rotary discs 41 corresponding to the two rotary driving units are used for being clamped on opposite sides of the optical fiber 300 in a rotatable mode so as to drive the optical fiber 300 to rotate and move downwards, the rotary axes of the two rotary discs 41 are arranged at an included angle, and the two rotary discs 41 rotate around the respective rotary axes in the same rotary direction; the fiber collecting assembly 5 is connected with one end of the optical fiber 300 away from the optical fiber preform 200, and the fiber collecting assembly 5 is used for collecting the rotated optical fiber 300.
Specifically, through holes are formed at both upper and lower ends of the heating furnace 2, and the feeding assembly 1 is capable of holding the optical fiber preform 200 and driving the optical fiber preform 200 to move up and down in a vertical posture, so that the lower end of the optical fiber preform 200 extends into the inside of the heating furnace 2 from the upper end opening of the heating furnace 2. The lower extreme of optical fiber perform 200 is the toper, heating furnace 2 can melt the lower extreme (the cone portion) of optical fiber perform 200 into the melt-softened state, draw the optical fiber perform 200 of melt-softened state downwards, can draw the cone portion of optical fiber perform 200 of melt-softened state into bare fiber, bare fiber passes out from the lower extreme opening of heating furnace 2, after coating solidification subassembly 3 carries out its coating and solidification process, bare fiber turns into optic fibre 300, optic fibre 300 passes between two rotary disk 41 and is connected with receipts fine subassembly 5 again, the circumference outer wall of two rotary disk 41 all contacts with optic fibre 300, two rotary disk 41 can rotate together, thereby make optic fibre 300 take place rotatoryly through frictional force.
As shown in fig. 3 to 5, fig. 3 is a force-receiving schematic view of the optical fiber 300 in fig. 1 subjected to a force from the rotating disk 41 located on the right side. Fig. 4 is a force-receiving schematic view of the optical fiber 300 in fig. 1 subjected to a force from the rotating disk 41 located on the left side. Fig. 5 is a schematic top view of the optical fiber 300 of fig. 1 subjected to forces from two rotating disks 41. The force applied to the optical fiber 300 when the rotating disk 41 located on the right rotates is F 1 ，F 1 Comprising a component X in the horizontal direction 1 And a vertically downward component y 1 . The force applied to the optical fiber 300 when the rotary disk 41 located on the left rotates is F 2 ，F 2 Comprising a component X in the horizontal direction 2 And a vertically downward component y 2 . When the two rotary discs 41 rotate in the same rotational direction about the respective rotational axes, X as shown in FIG. 5 1 And X is 2 In opposite directions through X 1 And X is 2 Can rotate the optical fiber 300. Further, y can be made by controlling the rotation direction of the rotary disk 41 1 And y 2 Is all vertically downward, through y 1 And y 2 The optical fiber 300 can be driven to move downward so that the tapered portion of the optical fiber preform 200 in the molten softened state is continuously drawn into the optical fiber 300.
The spiral generated by the rotation of the optical fiber 300 can be always transferred to the junction of the bare fiber and the optical fiber preform 200, so that the optical fiber preform 200 can rotate just after being converted into the bare fiber, the bare fiber after rotation can be cooled and molded after passing through the heating furnace 2, the spiral generated by the rotation of the bare fiber is solidified, the bare fiber after cooling and molding is the optical fiber 300 (rotating optical fiber) after being coated, solidified and other processes, and the optical fiber 300 (rotating optical fiber) is accommodated by the fiber collecting assembly 5, and the fiber collecting assembly 5 can apply downward pulling force to the optical fiber 300 when the optical fiber 300 is accommodated, so that the optical fiber 300 is kept in a vertical state, and the cone part of the optical fiber preform 200 can be continuously drawn after being converted into a molten and softened state, and further the drawing and rotating processes of the bare fiber can be continuously carried out, so that the rotating optical fiber can be continuously prepared.
According to the rotary optical fiber preparation device, the lower end of the optical fiber preform 200 is fed into the heating furnace 2 through the feeding component 1, the heating furnace 2 can melt the lower end cone of the optical fiber preform 200 into a molten softening state, the cone of the optical fiber preform 200 in the molten softening state can be drawn into bare fibers and pass out of the heating furnace 2, the bare fibers after passing out are converted into optical fibers 300 through the coating and curing component 3 in a coating and curing process, the optical fibers 300 pass through the two rotating disks 41 and are connected with the fiber collecting component 5, the two rotating disks 41 jointly drive the optical fibers 300 to rotate, the spiral generated by rotation can be transmitted to the joint of the bare fibers and the optical fiber preform 200, the bare fibers rotate, the optical fibers 300 (rotating optical fibers) are obtained after the rotating bare fibers are subjected to the processes of coating, curing and the like, and the rotating optical fibers are accommodated through the fiber collecting component 5. The optical fiber 300 is small in size and weight, and the optical fiber 300 is not easy to shake due to centrifugal force during rotation in a mode of rotating the optical fiber 300 to prepare the rotating optical fiber, so that the problem that the quality of the optical fiber is not up to standard due to the fact that the optical fiber easily shakes in the drawing rotation process in the prior art is effectively solved.
In one specific embodiment, the coating curing assembly 3 includes a first coating unit, a first curing unit, a second coating unit, and a second curing unit, which are sequentially disposed from top to bottom, the first coating unit and the first curing unit performing a first coating process (application of an inner coating layer) and a first curing process, respectively; the second coating unit and the second curing unit respectively carry out a second coating process (coating of an outer coating) and a second curing process, and the first coating unit and the second coating unit adopt the existing optical fiber coating machine, so that the bare fiber is prevented from being damaged by coating the bare fiber; the first curing unit and the second curing unit are all existing ultraviolet curing lamps.
As shown in fig. 1, in some embodiments, the feeding assembly 1 includes a clamping member 11 and a feeding member 12, the clamping member 11 is used for clamping the optical fiber preform 200, the feeding member 12 is connected to the clamping member 11, and the feeding member 12 is used for driving the clamping member 11 to move so that one end of the optical fiber preform 200 protrudes into the heating furnace 2.
Specifically, the rotary optical fiber preparation device further comprises a frame 6, the feeding part 12 is arranged on the frame 6, the feeding part 12 can be a driving part such as a cylinder, a hydraulic cylinder and the like, specifically can be two cylinders which are vertically arranged, and the cylinder body and the piston rod are respectively connected with the frame 6 and the clamping part 11. The clamping member 11 may be any member such as a clamping jaw that can clamp and fix a rod-shaped object. The optical fiber preform 200 is maintained in a vertical posture, the clamping member 11 clamps the upper end of the optical fiber preform 200, and the feeding member 12 drives the clamping member 11 to move up and down to extend the lower end of the optical fiber preform 200 into the heating furnace 2 for heating.
In some embodiments, the heating furnace 2 is a resistance furnace, such as a graphite resistance furnace, which is heated at 1600-2100 degrees celsius and is internally filled with an inert gas as a shielding gas.
As shown in fig. 2, in some embodiments, the rotary driving unit further includes a first driving assembly 42, where the first driving assembly 42 is connected to the rotary disk 41, and the first driving assembly 42 is used to drive the rotary disk 41 to move, so as to enable two rotary disks 41 corresponding to the two rotary driving units to approach or separate from each other.
In a specific embodiment, the first driving component 42 includes a first rotating shaft 421, a first mounting frame 422 and a first driving member 423, where the first rotating shaft 421 is perpendicular to the rotating disc 41 and penetrates through the middle of the rotating disc 41, two ends of the first rotating shaft 421 are rotationally connected with the first mounting frame 422, the first driving member 423 is connected with the first mounting frame 422, the first driving member 423 can be a driving member such as an air cylinder or a hydraulic cylinder, the first driving member 423 drives the first mounting frame 422 to move, and then drives the corresponding rotating disc 41 to approach or separate from the other rotating disc 41, so as to change the interval between the two rotating discs 41, and further enable the two rotating discs 41 to rotate through rotation to drive the optical fibers 300 with different specifications, so that the rotating optical fibers with different specifications can be prepared.
As shown in fig. 2, in some embodiments, the rotary driving unit further includes a second driving component 43, where the second driving component 43 is connected to the first driving component 42, and the second driving component 43 is used to drive the first driving component 42 to flip, so as to change the angle of the included angle between the rotary disk 41 and the optical fiber 300.
Specifically, the rotating disc 41 can drive the optical fiber 300 to rotate, so that the optical fiber 300 generates a spiral, when the included angle between the rotating disc 41 and the optical fiber 300 changes, the pitch of the spiral of the optical fiber 300 also changes, and the second driving assembly 43 drives the first driving assembly 42 to drive the rotating disc 41 to turn over, so that the pitch of the spiral of the optical fiber 300 can be changed, thereby obtaining the rotating optical fiber meeting the requirements.
In one embodiment, the angle between the optical fiber 300 and the two rotating disks 41 is equal, such that the component X of the force applied by the two rotating disks 41 to the optical fiber 300 in the horizontal direction 1 And X is 2 The sizes are substantially equal, preventing the optical fiber 300 from being horizontally shaken. The angle between the rotating disk 41 and the optical fiber 300 ranges from 0 to 90 degrees. When the angle between the rotary disk 41 and the optical fiber 300 is 0 degree, X is 1 And X is 2 All are equal to zero, the optical fiber 300 cannot be driven to rotate by the rotating disc 41, so that the included angle between the rotating disc 41 and the optical fiber 300 is in the range of more than 0 degrees and less than or equal to 90 degrees.
In one embodiment, the second driving assembly 43 includes a second mounting frame 431, a second rotating shaft 432, a third rotating shaft 433, a first gear 434, a second gear 435, and a second driving element 436; the third rotating shaft 433 and the first driving piece 423 are connected with the second mounting frame 431, and the first gear 434 is sleeved on the third rotating shaft 433; the second rotating shaft 432 is in power coupling connection with a second driving member 436, the second gear 435 is sleeved on the second rotating shaft 432, and the first gear 434 is meshed with the second gear 435.
The specific driving process is as follows: the second driving part 436 drives the second rotating shaft 432 to rotate, the second rotating shaft 432 drives the second gear 435 to rotate, so that the first gear 434 is driven to rotate, the first gear 434 drives the third rotating shaft 433 to rotate, the second mounting frame 431 is driven to overturn, the second mounting frame 431 drives the first mounting frame 422 to overturn through the first driving part 423, the first mounting frame 422 drives the first rotating shaft 421 to overturn, and then the rotating disc 41 is driven to overturn, so that the included angle between the rotating disc 41 and the optical fiber 300 is changed.
In one embodiment, as shown in fig. 2, the first driving assembly 42 further includes a limit guide rod 424, one end of the limit guide rod 424 is connected to the second mounting frame 431, and the other end of the limit guide rod 424 is slidably connected to the first mounting frame 422.
As shown in fig. 2, in one embodiment, the rotation driving unit further includes a third driving member 44, where the third driving member 44 is disposed on the first mounting frame 422, and the third driving member 44 is connected to the first rotating shaft 421 to drive the first rotating shaft 421 to rotate, so as to drive the rotating disc 41 to rotate.
In one embodiment, the first driving member 423 is a cylinder, a hydraulic cylinder, or the like, and the second driving member 436 and the third driving member 44 are motors.
As shown in fig. 1, in some embodiments, the spun fiber preparation apparatus further comprises at least one guide assembly 7, the guide assembly 7 comprising two guide wheels 71, the two guide wheels 71 being sandwiched on opposite sides of the fiber 300.
Specifically, the number of the guide assemblies 7 is two, and the guide assemblies are arranged at intervals up and down, wherein one guide assembly 7 comprises two guide wheels 71 which are arranged at intervals left and right; the other guide assembly 7 comprises two guide wheels 71 arranged at a distance from each other. The optical fiber 300 passes through the space between the two guide wheels 71 of the guide assembly 7, and the guide wheels 71 are used for limiting and guiding the optical fiber 300, so that the optical fiber 300 is prevented from shaking, and the quality of the rotating optical fiber is ensured.
In one embodiment, the circumferential outer walls of the guide wheels 71 are provided with V-grooves, the optical fibers 300 pass through the V-grooves, and the V-grooves are used for better limiting the optical fibers 300, so as to prevent the optical fibers 300 from being separated from the guide wheels 71.
In one embodiment, the guide wheel 71 is made of a wear-resistant material with high polishing precision, such as stainless steel, so as to avoid damaging the optical fiber 300.
As shown in fig. 1, in one embodiment, the fiber collecting assembly 5 includes a fourth driving member 51 and a spool 52, the fourth driving member 51 is connected to the spool 52, the optical fiber 300 is connected to the spool 52, and the first driving member 423 can drive the spool 52 to rotate, so that the optical fiber 300 is wound on the spool 52 to complete the storage. The fourth driving member 51 may be a motor.
As shown in fig. 1, in a specific embodiment, a traction wheel 8 is further disposed between the rotation driving assembly 4 and the fiber collecting assembly 5, the traction wheel 8 is connected with a power source such as a motor, so that the traction wheel 8 can rotate, the linear speed of the edge of the traction wheel 8 is equal to the speed at which the optical fiber 300 is pulled to move downwards by the two rotating discs 41, the optical fiber 300 can be pulled to any direction by the traction wheel 8, the setting position of the fiber collecting assembly 5 is enabled to be more free, for example, the optical fiber 300 is pulled to the horizontal direction by the traction wheel 8, and the fiber collecting assembly 5 is facilitated to collect fibers.
In a specific embodiment, the rotary optical fiber preparation device further includes a control system, where the feeding member 12, the first driving member 423, the second driving member 436, the third driving member 44, and the fourth driving member 51 are electrically connected to the control system, so as to flexibly control the feeding speed of the optical fiber preform 200, the interval between the two rotating discs 41, the angle between the rotating discs 41 and the optical fiber 300, the rotational speed of the rotating discs 41, and the accommodating speed of the optical fiber 300.
Fig. 6 is a schematic flow chart of a method for preparing a rotating optical fiber according to an embodiment of the present invention. As shown in fig. 6, based on the rotating optical fiber preparation device provided in any of the above embodiments, the present invention further provides a rotating optical fiber preparation method, which includes the following steps:
step S100, controlling a feeding assembly to clamp an optical fiber preform, and driving the lower end of the optical fiber preform to extend into a heating furnace to melt the lower end of the optical fiber preform into a molten and softened state;
step S200, controlling a heating furnace to heat the optical fiber preform, and simultaneously, primarily drawing the lower end of the optical fiber preform to obtain a bare fiber;
step S300, controlling a coating and curing assembly to coat and cure the bare fiber to obtain an optical fiber;
step S400, controlling two rotating discs corresponding to the rotary driving assembly to rotate, driving the optical fiber to rotate, and pulling the optical fiber to move downwards;
and S500, controlling the fiber receiving assembly to receive the rotated optical fiber, and obtaining the rotated optical fiber.
Specifically, the feeding assembly 1 clamps the optical fiber preform 200 and drives the optical fiber preform 200 to move up and down in a vertical posture, so that the lower end (tapered portion) of the optical fiber preform 200 protrudes into the inside of the heating furnace 2. The heating furnace 2 heats the cone part of the optical fiber preform 200 into a molten softening state, the optical fiber preform 200 in the molten softening state can be changed into a bare fiber after being drawn, the upper end of the bare fiber and the cone part of the optical fiber preform 200 are in a connection state, the lower end of the bare fiber is pulled out of the heating furnace 2, the bare fiber is coated and solidified by the coating and solidifying assembly 3 and then is converted into an optical fiber 300, the optical fiber 300 passes through between two rotating disks 41 and then is connected with the fiber collecting assembly 5, the circumferential outer walls of the two rotating disks 41 are contacted with the optical fiber 300, the two rotating disks 41 can rotate together at the same rotating speed, thereby rotating the optical fiber 300 by friction force and downwards moving, the spiral generated by rotation can be always transmitted to the junction of the bare fiber and the optical fiber preform 200, so that the lower end of the optical fiber preform 200 can rotate just after being converted into the bare fiber, the bare fiber can be cooled and shaped after the bare fiber passes through the heating furnace 2, the spiral generated when the bare fiber rotates is solidified, the bare fiber 300 after being solidified by the coating and solidifying process is converted into the optical fiber 300, and the optical fiber 300 is received by the fiber collecting assembly 5.
In one possible implementation, the step of the feeding assembly 1 holding the optical fiber preform 200 and driving the lower end of the optical fiber preform 200 to extend into the heating furnace 2 includes:
and step S110, controlling the feeding assembly to clamp the optical fiber preform, and driving the optical fiber preform to move towards one side of the heating furnace through the feeding assembly to ensure that the lower end of the optical fiber preform is kept in the heating furnace.
Specifically, since the tapered portion of the optical fiber preform 200 is gradually heated to a molten softened state in the heating furnace 2 and is converted into a bare fiber by drawing, in order to continuously perform the preparation process of the rotating optical fiber, the feeding assembly 1 moves by driving the optical fiber preform 200, thereby ensuring that the tapered portion of the optical fiber preform 200 is always inside the heating furnace 2 until the preparation process is completed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The rotary optical fiber preparation device is characterized by comprising a feeding assembly, a heating furnace, a coating curing assembly, a rotary driving assembly and a fiber collecting assembly which are sequentially arranged from top to bottom;
the feeding assembly is used for clamping the optical fiber perform and driving the lower end of the optical fiber perform to extend into the heating furnace, the heating furnace is used for heating the optical fiber perform into a molten softening state, and the optical fiber perform in the molten softening state can form a bare fiber after being drawn;
the coating and curing assembly is used for coating and curing the bare fiber so as to convert the bare fiber into an optical fiber;
the rotary driving assembly comprises two rotary driving units, the rotary driving units are provided with rotary discs, the rotary discs corresponding to the two rotary driving units are used for being clamped on opposite sides of the optical fiber in a rotatable mode so as to drive the optical fiber to rotate and move downwards at the same time, the rotary axes of the two rotary discs are arranged at an included angle, and the two rotary discs rotate around the respective rotary axes in the same rotary direction;
the optical fiber collecting assembly is connected with one end of the optical fiber, which is away from the optical fiber preform rod, and is used for collecting the rotated optical fiber.
2. The rotary optical fiber preparation device according to claim 1, wherein the feeding assembly comprises a clamping member for clamping the optical fiber preform and a feeding member connected to the clamping member for driving the clamping member to move so that one end of the optical fiber preform is inserted into the heating furnace.
3. The rotating optical fiber preparation device according to claim 1, wherein the rotating drive unit further comprises a first drive assembly and a second drive assembly, the first drive assembly being connected to the rotating disk, the second drive assembly being connected to the first drive assembly;
the first driving assembly is used for driving the rotating disc to move so as to enable the two rotating discs corresponding to the two rotating driving units to be close to or far away from each other; the second driving component is used for driving the first driving component to turn over so as to change the included angle between the rotating disk and the optical fiber.
4. The rotary optical fiber preparation device according to claim 3, wherein the first driving assembly comprises a first mounting frame and a first driving member, the rotary disk is rotatably disposed on the first mounting frame, the first mounting frame is connected with the first driving member, and the first driving member is used for driving the first mounting frame to drive the rotary disk to move.
5. A rotary optical fiber preparation device according to claim 3 wherein the second drive assembly comprises a second mount, a first gear, a second drive;
the second mounting frame is connected with the first driving assembly, the second mounting frame is connected with the first gear, the output end of the second driving piece is connected with the second gear, and the second gear is meshed with the first gear.
6. A spun optical fiber preparation apparatus as claimed in claim 3 wherein the angle between the optical fiber and the two rotating disks is equal, the angle between the rotating disks and the optical fiber being in the range of 0-90 degrees.
7. The rotating optical fiber preparation device of claim 1, further comprising at least one guide assembly comprising two guide wheels, the two guide wheels being clamped to opposite sides of the optical fiber.
8. A rotary optical fiber preparation method based on the rotary optical fiber preparation device according to any one of claims 1 to 7, comprising:
the feeding assembly is controlled to clamp the optical fiber preform, and the lower end of the optical fiber preform is driven to extend into the heating furnace, so that the lower end of the optical fiber preform is heated to be in a molten and softened state;
controlling the heating furnace to heat the optical fiber preform, and simultaneously, primarily drawing the lower end of the optical fiber preform to obtain a bare fiber;
coating and curing the bare fiber by controlling a coating and curing assembly to obtain an optical fiber;
controlling two rotating discs corresponding to the rotating driving assembly to rotate, driving the optical fibers to rotate, and pulling the optical fibers to move downwards;
and controlling the fiber collecting assembly to collect the rotated optical fiber to obtain the rotating optical fiber.
9. The method of manufacturing a rotating optical fiber according to claim 8, wherein the feeding assembly clamps the optical fiber preform and drives the lower end of the optical fiber preform to extend into the heating furnace, comprising:
and controlling the feeding assembly to clamp the optical fiber preform, and driving the optical fiber preform to move towards one side of the heating furnace through the feeding assembly to ensure that the lower end of the optical fiber preform is kept in the heating furnace.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310512776.0A CN116639870A (en) | 2023-05-08 | 2023-05-08 | Rotary optical fiber preparation device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310512776.0A CN116639870A (en) | 2023-05-08 | 2023-05-08 | Rotary optical fiber preparation device and method |
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| CN116639870A true CN116639870A (en) | 2023-08-25 |
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|---|---|---|---|
| CN202310512776.0A Pending CN116639870A (en) | 2023-05-08 | 2023-05-08 | Rotary optical fiber preparation device and method |
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| Country | Link |
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| CN (1) | CN116639870A (en) |
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2023
- 2023-05-08 CN CN202310512776.0A patent/CN116639870A/en active Pending
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