CN114230171A - Drawn optical fiber position centering device and method - Google Patents
Drawn optical fiber position centering device and method Download PDFInfo
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- CN114230171A CN114230171A CN202111573502.XA CN202111573502A CN114230171A CN 114230171 A CN114230171 A CN 114230171A CN 202111573502 A CN202111573502 A CN 202111573502A CN 114230171 A CN114230171 A CN 114230171A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 85
- 238000005491 wire drawing Methods 0.000 claims abstract description 33
- 229920006240 drawn fiber Polymers 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 32
- 229910002804 graphite Inorganic materials 0.000 claims description 32
- 239000010439 graphite Substances 0.000 claims description 32
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 9
- 238000012681 fiber drawing Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 22
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000036544 posture Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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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
- C03B37/0253—Controlling or regulating
-
- 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
- C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention discloses a drawn fiber position centering device and a drawn fiber position centering method, wherein the drawn fiber position centering device comprises a rod hanging unit, the rod hanging unit comprises a tail handle connecting mechanism used for connecting a tail handle of an optical fiber preform rod and a rod hanging platform used for installing the tail handle connecting mechanism, and the drawn fiber position centering device is characterized in that the tail handle connecting mechanism is connected below the rod hanging platform in a swinging mode in the vertical direction and any horizontal direction, and a drawn fiber positioning mechanism used for fixing the tail handle connecting mechanism at different postures is further installed on the rod hanging platform. The invention can be naturally vertical to the inlet of the wire drawing furnace by utilizing gravity under the matching of the universal joint, thereby reducing the influence of deviation on the production when the optical fiber perform is drawn to the later stage, simultaneously, the position of the optical fiber perform automatically returns to zero under the influence of self weight during the production period, reducing the operation of personnel, improving the working efficiency and reducing the artificial production abnormity.
Description
Technical Field
The invention belongs to the technical field of optical fibers, and particularly relates to a drawn optical fiber position centering device and method.
Background
Among the raw materials necessary for drawing an optical fiber, an optical fiber preform is the most important part. Influenced by the manufacturing process of the optical fiber perform rod, the integral verticality of the optical fiber perform rod cannot reach an ideal state, and certain curvature exists, wherein the curvature is not more than 1 mm/m. Especially, when the wire drawing is to closing on the tail end, the bending error of accumulational increases, optical fiber perform offset appears easily, leads to graphite felt to seal the inefficacy, and stove gas leakage causes all kinds of abnormalities such as oxidation, disconnected fibre, breaks normal production rhythm to can make the graphite spare loss in advance, manufacturing cost rises.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the drawn optical fiber position centering device and the drawn optical fiber position centering method, which can adjust the posture of an optical fiber preform and ensure the stable production.
The invention provides the following technical scheme: the utility model provides a wire drawing optic fibre position centering device, includes and hangs excellent unit, hang excellent unit including the caudal peduncle coupling mechanism who is used for connecting optical fiber perform caudal peduncle and be used for the installation caudal peduncle coupling mechanism's string excellent platform, caudal peduncle coupling mechanism around vertical direction and arbitrary horizontal direction wobbling connect in hang the below of excellent platform, still install on the string excellent platform and be used for with caudal peduncle coupling mechanism fixes the wire drawing positioning mechanism at different gestures.
In one embodiment of the invention, the tail handle connecting mechanism is provided with a spherical connecting head, the rod hanging platform is provided with a spherical connecting hole, and the spherical connecting head is connected with the spherical connecting hole in a swinging manner around the vertical direction and any horizontal direction.
In one embodiment of the invention, the wire drawing positioning mechanism comprises a plurality of side pushing assemblies which are uniformly distributed around the tail handle connecting mechanism, and the side pushing assemblies can push and release the tail handle connecting mechanism in the horizontal direction.
In one embodiment of the invention, the tail handle connecting mechanism is further provided with an elastic resetting component for enabling the optical fiber preform rod to float along the length direction of the optical fiber preform rod and/or a pressure sensor for detecting the pressure applied by the tail handle of the optical fiber preform rod.
In one embodiment of the invention, the device further comprises a drawing furnace inlet sealing unit, wherein the drawing furnace inlet sealing unit comprises at least two layers of variable-diameter graphite felts and at least one layer of non-variable-diameter graphite felt which are arranged at the inlet of the drawing furnace, the variable-diameter graphite felt is provided with a radial cut opening enabling an inner hole of the variable-diameter graphite felt to be gradually adjusted between a small hole and a large hole, and the non-variable-diameter graphite felt is provided with a large hole with a fixed aperture.
In one embodiment of the invention, the device further comprises a drawing furnace outlet detection unit, wherein the drawing furnace outlet detection unit comprises a position detection mechanism for detecting the position of the optical fiber at the outlet of the drawing furnace, and the position detection mechanism and the drawing positioning mechanism are respectively connected with the input end and the output end of a control unit.
In one embodiment of the invention, the position detection mechanism is arranged on a detection platform, an optical fiber hole for an optical fiber to pass through is arranged on the detection platform, and the detection platform is provided with a guide rail mechanism guiding the detection platform to be close to and far away from the outlet of the wire drawing furnace and a detection positioning mechanism positioning the detection platform at the outlet of the wire drawing furnace.
The invention also provides another technical scheme: a method for centering the position of a drawn optical fiber comprises the following steps:
(1) providing a drawn optical fiber position centering device according to claim 7;
(2) acquiring the actual position of the optical fiber at the outlet of the drawing furnace in real time through the position detection mechanism;
(3) calculating the position offset of the actual position of the optical fiber at the outlet of the drawing furnace relative to the theoretical position through the control unit;
(4) judging whether the position offset is in a set range through the control unit, if so, returning to the step (2), and if not, entering the step (5);
(5) and adjusting the optical fiber preform rod through the optical fiber drawing and positioning mechanism so as to keep the position offset within a set range.
In one embodiment of the invention, position adjusting data of optical fiber preforms with different sizes during drawing is collected, the position adjusting data comprises the sizes, adjusting intervals and adjusting displacement of the optical fiber preforms, and the control unit controls the optical fiber drawing positioning mechanism to move according to the position adjusting data and corrects the position adjusting data in real time according to the detection result of the position detecting mechanism.
In one embodiment of the invention, the furnace charging height is calculated according to the following formula:
the furnace entering height is the total length of the optical rod, the length of the optical rod entering the furnace and the wire drawing advancing distance;
wherein the content of the first and second substances,
the furnace entering height is a real-time distance value between the rod hanging platform and the wire drawing furnace;
taking the length of the furnace entering optical rod as a set value, and taking 500-600 mm;
the wire drawing advancing distance is the total descending distance of the rod hanging platform.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1) the device and the method for centering the position of the drawn optical fiber can be naturally vertical to the inlet of a drawing furnace by utilizing gravity under the matching of a universal joint, so that the influence of deviation of the optical fiber perform on production when the optical fiber perform is drawn to the later stage is reduced, meanwhile, the position of the optical fiber perform automatically returns to zero under the influence of self weight during the production period, the operation of personnel is reduced, the working efficiency is improved, and the artificial production abnormity is reduced;
2) according to the drawn optical fiber position centering device and the drawn optical fiber position centering method, the position detection mechanism is arranged at the outlet of the drawing furnace, so that the position offset of the optical fiber at the outlet of the drawing furnace can be detected in real time, the position of the optical fiber preform rod is adjusted, and normal production is guaranteed;
3) according to the drawn optical fiber position centering device and the drawn optical fiber position centering method, if the position detection mechanism is arranged at the position of the furnace outlet, daily production operation is easily influenced. By manufacturing the sliding type detection platform, the detection platform can be moved to the edge in parallel during maintenance, operation cannot be influenced, and the detection platform can be moved to a specified position for positioning when in use;
4) the invention discloses a device and a method for centering the position of a drawn fiber, which are influenced by the production process of an optical fiber preform, the diameter of the supplied material of the optical fiber preform is unstable in a very small range, particularly when the diameter is close to the end, the diameter can fluctuate violently, the influence on the position of the optical fiber preform and the stability of the optical fiber is large, and the offset generated in a short time is large because the optical fiber preform is short, so that the adjustment cannot be carried out by using an integral curvature formula;
5) the drawn fiber position centering device and the drawn fiber position centering method disclosed by the invention can be used for manually setting the adjustment interval, controlling the adjustment frequency according to the drawing state and reducing the frequent centering operation;
6) the invention discloses a device and a method for centering the position of a drawn fiber, which are used for recording all adjustment data, tracing problem points in the aspect, judging the integral difference of an optical fiber preform according to the data and providing a basis for the quality feedback and stable production of the optical fiber preform;
7) the invention discloses a drawn fiber position centering device and a drawn fiber position centering method. And a special distance detection device is omitted, so that the cost and the space are saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of a rod hanging unit of the drawn optical fiber position centering device disclosed in the present invention;
FIG. 2 is a schematic diagram of a fiber positioning mechanism of the fiber position centering device disclosed in the present invention;
FIG. 3 is a schematic view of a variable diameter graphite felt of the apparatus for centering a position of a drawn optical fiber according to the present disclosure;
FIG. 4 is a schematic view of a non-variable diameter graphite felt of the apparatus for centering a position of a drawn optical fiber according to the present disclosure;
FIG. 5 is a schematic view of a drawing furnace inlet sealing unit of the drawn optical fiber position centering device disclosed in the present invention;
FIG. 6 is a schematic view of a drawing furnace exit detection unit of the device for centering the position of a hairline fiber according to the present invention.
Wherein, 1, a tail handle connecting mechanism; 11. a spherical connector; 12. an elastic reset component; 13. a pressure sensor; 14. a tail handle slot; 15. a safety hasp; 2. a rod hanging platform; 21. a spherical connecting hole; 3. a wire drawing positioning mechanism; 31. a side push assembly; 311. a side push plate; 312. a cylinder; 41. a variable diameter graphite felt; 411. cutting an opening in a radial direction; 412. an annular body; 42. non-variable diameter graphite felt; 43. a quartz ring; 44. sealing the cover in air; 45. a graphite felt groove; 51. a light source; 52. a receiver; 6. a detection platform; 61. an optical fiber hole; 62. a guide rail mechanism; 63. and detecting the positioning mechanism.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure. In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
The following is a preferred embodiment of the present invention, but is not intended to limit the scope of the present invention.
Example one
Referring to fig. 1 to 6, as shown in the drawings, a drawn optical fiber position centering device includes a rod hanging unit, the rod hanging unit includes a tail handle connecting mechanism 1 for connecting a tail handle of an optical fiber preform rod and a rod hanging platform 2 for installing the tail handle connecting mechanism 1, the tail handle connecting mechanism 1 is connected below the rod hanging platform 2 in a manner of swinging around a vertical direction and any horizontal direction, and a drawn wire positioning mechanism 3 for fixing the tail handle connecting mechanism 1 at different postures is further installed on the rod hanging platform 2.
Above-mentioned caudal peduncle coupling mechanism 1 hangs excellent platform 2 around the wobbling above-mentioned peg of connection of vertical direction and arbitrary horizontal direction, universal connection often says so, because caudal peduncle coupling mechanism 1 universal connection hangs excellent platform 2, consequently can adjust caudal peduncle coupling mechanism 1's gesture according to actual demand, and then adjust optical fiber perform's gesture, then through the gesture of 3 fixed caudal peduncle coupling mechanisms of wire drawing positioning mechanism, utilize the entry of gravity natural perpendicular to wire drawing stove, it influences the production to reduce optical fiber perform wire drawing later stage offset, and simultaneously, during production, optical fiber perform is automatic to return to zero in dead weight influence below, reduce personnel's operation, improve work efficiency and reduce artificial production abnormity.
In a preferred embodiment of the present invention, the tail handle connecting mechanism 1 is provided with a spherical connecting head 11, the rod hanging platform 2 is provided with a spherical connecting hole 21, and the spherical connecting head 11 is connected to the spherical connecting hole 21 in a manner that it can swing in the vertical direction and any horizontal direction. The spherical connector and the spherical connecting hole can realize relative swinging of the spherical connector and the spherical connecting hole around the vertical direction and any horizontal direction, and the rotation is smooth.
In a preferred embodiment of the present invention, the wire drawing positioning mechanism 3 includes a plurality of side pushing assemblies 31 uniformly distributed around the tail stem connecting mechanism 1, and the side pushing assemblies 31 can push and release the tail stem connecting mechanism 1 in a horizontal direction. Specifically, the side pushing assembly 31 includes a side pushing plate 311 contacting the tail stem connecting mechanism 1 and a cylinder 312 driving the side pushing plate 311 to push and release the tail stem connecting mechanism 1, and the side pushing plate 311 is an arc-shaped tetrafluoroethylene plate.
In a preferred embodiment of the present embodiment, the above-mentioned tail-handle connection mechanism 1 is further provided with an elastic reset component 12 for floating the optical fiber preform along the length direction thereof and a pressure sensor 13 for detecting the pressure applied by the tail handle of the optical fiber preform. Make optical fiber perform can fluctuate in certain extent through setting up elasticity reset block 12, when optical fiber perform when wire drawing stove fire door card pause, optical fiber perform adaptability come-up, the production accident can not appear. When the optical fiber perform rod is clamped at the furnace mouth of the drawing furnace, the pressure sensor 13 gives an alarm to remind an operator to check after the pressure reaches a safety threshold value. Specifically, the tail-handle connecting mechanism 1 is provided with a tail-handle groove 14, one end groove end of the tail-handle groove 14 faces downward and is open, the safety buckle 15 is provided to prevent the tail handle in the tail-handle groove 14 from sliding out of the tail-handle groove 14, the notch of the tail-handle groove 14 faces the side, the other groove end of the tail-handle groove is provided with the elastic return component 12 (spring), and the lower end of the spring is provided with the pressure sensor 13. The surface of the tail handle groove is smooth. In other embodiments it may also be: the tail handle connecting mechanism is only provided with the elastic reset component or only provided with the pressure sensor, or is not provided with the elastic reset component or the pressure sensor.
In the preferred embodiment of the present invention, the wire drawing furnace further comprises a wire drawing furnace inlet sealing unit, the wire drawing furnace inlet sealing unit comprises at least two layers of diameter-variable graphite felts 41 and at least one layer of diameter-non-variable graphite felt 42, which are arranged at the wire drawing furnace inlet, the diameter-variable graphite felt 41 has a radial cut opening 411 for gradually adjusting the inner hole between a small hole and a large hole, and the diameter-non-variable graphite felt 42 has a large hole with a fixed diameter. Specifically, the variable diameter graphite felt 41 includes an annular body 412 having the small holes, inner ends of the radial cut openings 411 penetrate through inner walls of the small holes of the annular body 412, outer ends of the radial cut openings 411 are located on a circumferential line, the circumferential line is the same as a diameter of the large holes, the large holes and the small holes are used for distinguishing two holes and sizes thereof and are not used for limiting the sizes of the holes, the variable diameter graphite felt 41 can be attached to outer walls of wires penetrating through the variable diameter graphite felt, and the multi-layer variable diameter graphite felt 41 enables sealing to be more reliable. The graphite felt 42 of non-variable diameter is overlapped with the graphite felt 41 of variable diameter, and the graphite felt 42 of non-variable diameter presses the graphite felt 41 of variable diameter. The inlet of the drawing furnace is provided with a quartz ring 43 and a plurality of gas sealing covers 44 through which the optical fiber perform passes in sequence, the gas sealing covers 44 are provided with graphite felt grooves 45, and the graphite felt 42 which can not be changed in diameter and the graphite felt 41 which can be changed in diameter are overlapped together and then are arranged in the graphite felt grooves 45.
In a preferred embodiment of this embodiment, the optical fiber drawing device further includes a drawing furnace outlet detection unit, where the drawing furnace outlet detection unit includes a position detection mechanism for detecting a position of the optical fiber at the outlet of the drawing furnace, and the position detection mechanism and the drawing positioning mechanism 3 are respectively connected to an input end and an output end of a control unit. Specifically, above-mentioned position detection mechanism includes two sets of light sources 51 and receiver 52, and light source 51 locates the one side of waiting to detect the optic fibre, and receiver 52 locates the opposite side of waiting to detect the optic fibre, can detect two direction positions of XY, sets up position detection mechanism at wire drawing stove exit position, can real-time detection wire drawing stove exit the position offset of the optic fibre to adjust the position of optical fiber perform, guarantee normal production.
In a preferred embodiment of the present invention, the position detecting mechanism is disposed on a detecting platform 6, the detecting platform 6 is provided with an optical fiber hole 61 for passing an optical fiber therethrough, and the detecting platform 6 is provided with a guide rail mechanism 62 for guiding the detecting platform 6 to approach and depart from the outlet of the drawing furnace and a detecting and positioning mechanism 63 for positioning the detecting platform 6 at the outlet of the drawing furnace. Specifically, the guide rail mechanism 62 includes a slide rail and a slide block, the detection positioning mechanism 63 includes a pin and a jack, and positioning is achieved through cooperation of the pin and the jack.
The invention also provides another technical scheme: a method for centering the position of a drawn optical fiber comprises the following steps:
(1) providing a drawn optical fiber position centering device as above;
(2) acquiring the actual position of the optical fiber at the outlet of the drawing furnace in real time through the position detection mechanism;
(3) calculating the position offset of the actual position of the optical fiber at the outlet of the drawing furnace relative to the theoretical position through the control unit;
(4) judging whether the position offset is in a set range through the control unit, if so, returning to the step (2), and if not, entering the step (5);
(5) and adjusting the optical fiber preform rod through the optical fiber drawing and positioning mechanism so as to keep the position offset within a set range.
Influenced by the production process of the optical fiber perform, the diameter of the supplied material of the optical fiber perform is unstable in a small range, especially when the diameter is close to the end, the diameter can fluctuate violently, the influences on the position of the optical fiber perform and the stability of the optical fiber are large, and the offset generated in a short time is large because the optical fiber perform is short, so that the adjustment cannot be carried out by using the integral curvature formula.
In a preferred embodiment of the present invention, position adjustment data of optical fiber preforms of different sizes during drawing is collected, the position adjustment data includes the size, adjustment interval, and adjustment displacement of the optical fiber preform, and the control unit controls the optical fiber drawing positioning mechanism to move according to the position adjustment data and corrects the position adjustment data in real time according to the detection result of the position detection mechanism. And under a normal wire drawing state, setting a sampling length interval, and finely adjusting the corresponding position of the tail pipe propulsion platform according to the calculated distance from the tail pipe to the furnace mouth and the offset of the optical fiber at the furnace outlet. After a large amount of adjustment data are collected, the big data can be utilized to carry out fine adjustment in advance, so that the stability of the optical fiber position is ensured; the adjustment interval can be set manually, the adjustment frequency is controlled according to the wire drawing state, and the frequent centering operation is reduced; the invention records all the adjustment data, thereby tracing the problem points in the aspect, judging the integral difference of the optical fiber perform rod according to the data and providing a basis for the quality feedback and the stable production of the optical fiber perform rod. And recording the diameters, lengths, adjustment data and the like of different optical rods, and finally summarizing the average offset to obtain the bending degree and related wire drawing characteristics of the optical fiber, so that a special industrial database is formed, and data support is provided for later improvement.
In the preferred embodiment of the present embodiment, the charging height is calculated according to the following formula:
the furnace entering height is the total length of the optical rod, the length of the optical rod entering the furnace and the wire drawing advancing distance;
wherein the content of the first and second substances,
the furnace entering height is a real-time distance value between the rod hanging platform and the wire drawing furnace;
taking the length of the furnace entering optical rod as a set value, and taking 500-600 mm;
the wire drawing advancing distance is the total descending distance of the rod hanging platform.
And in a PSU control interface, setting the total length of the optical rods and the length of the optical rods entering the furnace, and calculating the height of the entering furnace. And a special distance detection device is omitted, so that the cost and the space are saved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including any reference to the above-mentioned embodiments. Various modifications to the embodiments of the invention will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a wire drawing optic fibre position centering device, includes and hangs excellent unit, hang excellent unit including the caudal peduncle coupling mechanism who is used for connecting optical fiber perform caudal peduncle and be used for the installation caudal peduncle coupling mechanism's string excellent platform, its characterized in that, caudal peduncle coupling mechanism around vertical direction and arbitrary horizontal direction wobbling connect in hang the below of excellent platform, hang still install on the excellent platform be used for with caudal peduncle coupling mechanism fixes the wire drawing positioning mechanism at different gestures.
2. A drawn fiber position centering device according to claim 1, wherein said tail handle connection mechanism is provided with a spherical connector, said rod hanging platform is provided with a spherical connection hole, and said spherical connector is connected with said spherical connection hole swingably around a vertical direction and an arbitrary horizontal direction.
3. The drawn optical fiber position centering device according to claim 1, wherein the drawing positioning mechanism comprises a plurality of side pushing components uniformly distributed around the tail handle connecting mechanism, and the side pushing components can push and release the tail handle connecting mechanism along a horizontal direction.
4. A drawn optical fiber position centering device according to claim 1, wherein said tail-handle connecting mechanism is further provided with an elastic restoring member for floating the optical fiber preform in the length direction thereof and/or a pressure sensor for detecting the pressure applied by the tail handle of the optical fiber preform.
5. A drawn optical fiber position centering device as claimed in claim 1, further comprising a drawing furnace inlet sealing unit, said drawing furnace inlet sealing unit comprising at least two layers of variable diameter graphite felt and at least one layer of non-variable diameter graphite felt disposed at the drawing furnace inlet, said variable diameter graphite felt having a radial cut opening for gradually adjusting the inner hole thereof between a small hole and a large hole, said non-variable diameter graphite felt having a large hole with a fixed aperture.
6. The device for centering the position of a drawn optical fiber according to claim 1, further comprising a drawing furnace outlet detection unit, wherein the drawing furnace outlet detection unit comprises a position detection mechanism for detecting the position of the optical fiber at the outlet of the drawing furnace, and the position detection mechanism and the drawing positioning mechanism are respectively connected with an input end and an output end of a control unit.
7. A drawn optical fiber position centering device according to claim 6, wherein said position detecting mechanism is provided on a detecting platform, said detecting platform is provided with an optical fiber hole for passing the optical fiber therethrough, said detecting platform is provided with a guide rail mechanism guiding said detecting platform to approach to and depart from the outlet of the drawing furnace and a detecting and positioning mechanism positioning said detecting platform at the outlet of the drawing furnace.
8. A method for centering the position of a drawn optical fiber, comprising the steps of:
(1) providing a drawn optical fiber position centering device according to claim 7;
(2) acquiring the actual position of the optical fiber at the outlet of the drawing furnace in real time through the position detection mechanism;
(3) calculating the position offset of the actual position of the optical fiber at the outlet of the drawing furnace relative to the theoretical position through the control unit;
(4) judging whether the position offset is in a set range through the control unit, if so, returning to the step (2), and if not, entering the step (5);
(5) and adjusting the optical fiber preform rod through the optical fiber drawing and positioning mechanism so as to keep the position offset within a set range.
9. A method for centering a position of a drawn optical fiber according to claim 8, wherein position adjustment data of optical fiber preforms of different sizes during drawing are collected, the position adjustment data including the size of the optical fiber preform, the adjustment interval, and the adjustment displacement amount, and the control unit controls the optical fiber drawing positioning mechanism to move according to the position adjustment data and corrects the position adjustment data in real time according to the detection result of the position detecting mechanism.
10. The method of claim 8, wherein the furnace entry height is calculated according to the following equation:
the furnace entering height is the total length of the optical rod, the length of the optical rod entering the furnace and the wire drawing advancing distance;
wherein the content of the first and second substances,
the furnace entering height is a real-time distance value between the rod hanging platform and the wire drawing furnace;
taking the length of the furnace entering optical rod as a set value, and taking 500-600 mm;
the wire drawing advancing distance is the total descending distance of the rod hanging platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111573502.XA CN114230171B (en) | 2021-12-21 | 2021-12-21 | Device and method for centering drawn optical fiber position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111573502.XA CN114230171B (en) | 2021-12-21 | 2021-12-21 | Device and method for centering drawn optical fiber position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114230171A true CN114230171A (en) | 2022-03-25 |
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| CN1058075A (en) * | 1990-06-25 | 1992-01-22 | 帕姆普泰克公司 | Be used to the seal arrangement of the machinery of piston and valve and with the machinery of this device |
| CN104405327A (en) * | 2014-10-13 | 2015-03-11 | 重庆中重石油机械有限公司 | Variable diameter ram monomer |
| CN206289172U (en) * | 2016-12-19 | 2017-06-30 | 青海中利光纤技术有限公司 | Preform hangs bar device |
| CN207031267U (en) * | 2017-04-24 | 2018-02-23 | 江苏亨通光纤科技有限公司 | Preform hangs rod position regulator |
| CN109516685A (en) * | 2018-12-19 | 2019-03-26 | 通鼎互联信息股份有限公司 | Hanger, drawing optical fibers production system and optical fiber production |
| CN109574490A (en) * | 2019-01-07 | 2019-04-05 | 长飞光纤潜江有限公司 | A kind of prefabricated stick drawn wire adjustment device |
| CN213977437U (en) * | 2020-10-10 | 2021-08-17 | 山东智光通信科技有限公司 | Optical fiber perform collimation adjusting device |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058075A (en) * | 1990-06-25 | 1992-01-22 | 帕姆普泰克公司 | Be used to the seal arrangement of the machinery of piston and valve and with the machinery of this device |
| CN104405327A (en) * | 2014-10-13 | 2015-03-11 | 重庆中重石油机械有限公司 | Variable diameter ram monomer |
| CN206289172U (en) * | 2016-12-19 | 2017-06-30 | 青海中利光纤技术有限公司 | Preform hangs bar device |
| CN207031267U (en) * | 2017-04-24 | 2018-02-23 | 江苏亨通光纤科技有限公司 | Preform hangs rod position regulator |
| CN109516685A (en) * | 2018-12-19 | 2019-03-26 | 通鼎互联信息股份有限公司 | Hanger, drawing optical fibers production system and optical fiber production |
| CN109574490A (en) * | 2019-01-07 | 2019-04-05 | 长飞光纤潜江有限公司 | A kind of prefabricated stick drawn wire adjustment device |
| CN213977437U (en) * | 2020-10-10 | 2021-08-17 | 山东智光通信科技有限公司 | Optical fiber perform collimation adjusting device |
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| CN114230171B (en) | 2023-11-03 |
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