CN114230171B - Device and method for centering drawn optical fiber position - Google Patents
Device and method for centering drawn optical fiber position Download PDFInfo
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- CN114230171B CN114230171B CN202111573502.XA CN202111573502A CN114230171B CN 114230171 B CN114230171 B CN 114230171B CN 202111573502 A CN202111573502 A CN 202111573502A CN 114230171 B CN114230171 B CN 114230171B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 80
- 238000001514 detection method Methods 0.000 claims description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 31
- 229910002804 graphite Inorganic materials 0.000 claims description 31
- 239000010439 graphite Substances 0.000 claims description 31
- 238000005491 wire drawing Methods 0.000 claims description 30
- 238000012681 fiber drawing Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 230000036544 posture Effects 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 230000005856 abnormality Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 229920006240 drawn fiber Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000013072 incoming material Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012423 maintenance Methods 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
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research 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
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
- C03B37/025—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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- 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)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The application discloses a device and a method for centering a drawn optical fiber position, comprising a hanging rod unit, wherein the hanging rod unit comprises a tail handle connecting mechanism for connecting a tail handle of an optical fiber preform and a hanging rod platform for installing the tail handle connecting mechanism. The application can utilize gravity to be naturally vertical to the inlet of the drawing furnace under the cooperation of the universal joint, reduce the deviation to influence the production when the optical fiber perform is drawn to the later stage, simultaneously, the position of the optical fiber perform is automatically reset under the influence of dead weight during the production, reduce the operation of personnel, improve the working efficiency and reduce the man-made production abnormality.
Description
Technical Field
The application belongs to the technical field of optical fibers, and particularly relates to a device and a method for centering a drawn optical fiber position.
Background
Among the raw materials necessary for optical fiber drawing, an optical fiber preform is the most important part. The whole perpendicularity of the optical fiber preform cannot reach an ideal state under the influence of the manufacturing process of the optical fiber preform, a certain degree of curvature exists, and the degree of curvature is not more than 1 mm/m. Especially when the wire drawing is close to the tail end, accumulated bending errors are increased, the position deviation of the optical fiber preform rod is easy to occur, the sealing failure of the graphite felt is caused, various anomalies such as oxidization and fiber breakage are caused by air leakage of the furnace, the normal production rhythm is broken, the graphite piece is worn in advance, and the production cost is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides a device and a method for centering the position of a drawn optical fiber, which can adjust the posture of an optical fiber preform rod and ensure stable production.
The application provides the following technical scheme: the utility model provides a wire drawing optic fibre position centering device, includes the peg unit, the peg unit is including being used for connecting the tail handle coupling mechanism of optical fiber perform tail handle and be used for installing tail handle coupling mechanism's peg platform, tail handle coupling mechanism around vertical direction and arbitrary horizontal direction wobbling connect in the below of peg platform, still install on the peg platform be used for with tail handle coupling mechanism fixes the wire drawing positioning mechanism in different postures.
In one embodiment of the application, the tail handle connecting mechanism is provided with a spherical connector, the hanging rod platform is provided with a spherical connecting hole, and the spherical connector can be connected with the spherical connecting hole in a swinging manner around the vertical direction and any horizontal direction.
In one embodiment of the application, 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 present application, the butt joint mechanism is further provided with an elastic restoring member for floating the optical fiber preform along its length direction and/or a pressure sensor for detecting the pressure applied by the optical fiber preform butt.
In one embodiment of the application, the device further comprises a wire drawing furnace inlet sealing unit, wherein the wire 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 felts, the at least two layers of variable-diameter graphite felts are arranged at the inlet of the wire drawing furnace, the variable-diameter graphite felts are provided with radial cut openings, inner holes of the variable-diameter graphite felts can be adjusted gradually between small holes and large holes, and the non-variable-diameter graphite felts are provided with large holes with fixed pore diameters.
In one embodiment of the application, the optical fiber drawing 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 application, the position detection mechanism is arranged on a detection platform, an optical fiber hole for an optical fiber to pass through is formed in the detection platform, and the detection platform is provided with a guide rail mechanism for guiding the detection platform to approach and separate from an outlet of the wire drawing furnace and a detection positioning mechanism for positioning the detection platform at the outlet of the wire drawing furnace.
The application also provides another technical scheme: a method of centering a drawn optical fiber position, comprising the steps of:
(1) Providing a drawn optical fiber position centering device as defined in 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 or not 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 by the optical fiber drawing positioning mechanism so as to keep the position offset within a set range.
In one embodiment of the application, position adjustment data of optical fiber preforms with different sizes during drawing are collected, the position adjustment data comprise the sizes, the adjustment intervals and the adjustment displacement of the optical fiber preforms, 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.
In one embodiment of the present application, the charge height is calculated according to the following formula:
furnace height = total length of light bar-length of furnace light bar-wire drawing advancing distance;
wherein,,
the furnace feeding height is a real-time distance value between the hanging rod platform and the wire drawing furnace;
the length of the furnace feeding optical rod is set as a set value, and 500-600 mm is taken;
the wire drawing advancing distance is the total descending distance of the hanging rod platform.
Due to the application of the technical scheme, compared with the prior art, the application has the following advantages:
1) According to the device and the method for centering the drawn optical fiber position, provided by the application, under the cooperation of a universal joint, gravity is utilized to be naturally vertical to the inlet of a drawing furnace, so that the influence of deflection when an optical fiber preform is drawn to a later stage is reduced, and meanwhile, during the production period, the position of the optical fiber preform is automatically reset under the influence of dead weight, so that the operation of personnel is reduced, the working efficiency is improved, and the man-made production abnormality is reduced;
2) According to the device and the method for centering the drawn optical fiber position, 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 is adjusted, and normal production is ensured;
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, the daily production operation is easily affected. The sliding type detection platform is manufactured, so that the sliding type detection platform can be moved to the edge in parallel during maintenance, operation cannot be influenced, and the sliding type detection platform can be moved to a designated position for positioning when in use;
4) The application discloses a device and a method for centering a drawn optical fiber position, which are influenced by an optical fiber preform production process, the diameter of an incoming material of the optical fiber preform is not stable in a very small range, particularly when the diameter is close to the end, the diameter can be severely fluctuated, the influence on the position of the optical fiber preform and the stability of the optical fiber is great, and the offset generated in a short time is great because the optical fiber preform is shorter, and the integral bending formula cannot be used for adjustment;
5) According to the device and the method for centering the drawn optical fiber position, the adjustment interval can be manually set, the adjustment frequency is controlled and adjusted according to the drawing state, and frequent centering operation is reduced;
6) The application discloses a device and a method for centering the position of a drawn optical fiber, which record all adjustment data, search problems in aspects, judge the integral difference of the optical fiber preform according to the data and provide basis for the quality feedback and stable production of the optical fiber preform;
7) According to the drawn optical fiber position centering device and the drawn optical fiber position centering method, the furnace feeding height is calculated through the total length of the optical rod and the length of the furnace feeding optical rod. The special distance detection equipment is omitted, and the cost and the space are saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic illustration of a rod unit of the disclosed drawn fiber position centering device;
FIG. 2 is a schematic diagram of a drawing positioning mechanism of a drawing optical fiber position centering device disclosed in the present application;
FIG. 3 is a schematic illustration of a variable diameter graphite felt of the disclosed drawn fiber position centering device;
FIG. 4 is a schematic illustration of a non-variable diameter graphite felt of the disclosed drawn fiber position centering device;
FIG. 5 is a schematic illustration of a sealing unit at the entrance of a drawing furnace of the disclosed device for centering drawn optical fiber position;
FIG. 6 is a schematic diagram of a drawing furnace exit detection unit of the hairline fiber position centering device disclosed by the application.
Wherein, 1, the tail handle connecting mechanism; 11. a spherical connector; 12. an elastic restoring member; 13. a pressure sensor; 14. tail handle groove; 15. a safety hasp; 2. a rod hanging platform; 21. a spherical surface connecting hole; 3. a wiredrawing positioning mechanism; 31. a side pushing assembly; 311. a side push plate; 312. a cylinder; 41. variable diameter graphite felt; 411. radial cutting openings; 412. an annular body; 42. non-variable diameter graphite felt; 43. a quartz ring; 44. an air seal cover; 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 a positioning mechanism.
Detailed Description
The following describes in further detail the embodiments of the present application with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. 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 exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof. In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, are merely relational terms determined for convenience in describing structural relationships of the various components or elements of the present disclosure, and do not denote any one of the components 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 coupled," "connected," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the disclosure may be determined according to circumstances, and should not be interpreted as limiting the disclosure, for relevant scientific research or a person skilled in the art.
The following is a preferred embodiment for illustrating the present application, but is not intended to limit the scope of the present application.
Example 1
Referring to fig. 1 to 6, as shown in the drawings, a device for centering a drawn optical fiber position comprises a rod unit, wherein the rod unit comprises a tail handle connecting mechanism 1 for connecting a tail handle of an optical fiber preform and a rod platform 2 for mounting the tail handle connecting mechanism 1, the tail handle connecting mechanism 1 is swingably connected below the rod platform 2 around a vertical direction and any horizontal direction, and a drawing positioning mechanism 3 for fixing the tail handle connecting mechanism 1 in different postures is further mounted on the rod platform 2.
The tail handle connecting mechanism 1 is connected with the hanging rod platform 2 in a swinging mode around the vertical direction and any horizontal direction, namely, the tail handle connecting mechanism 1 is connected with the hanging rod platform 2 in a universal mode, the gesture of the tail handle connecting mechanism 1 can be adjusted according to actual requirements, the gesture of an optical fiber preform is adjusted, then the gesture of the tail handle connecting mechanism is fixed through the wire drawing positioning mechanism 3, gravity is utilized to be naturally perpendicular to an inlet of a wire drawing furnace, the phenomenon that the optical fiber preform is deviated to influence production in the later stage of wire drawing is reduced, meanwhile, during the production period, the position of the optical fiber preform is automatically reset under the influence of dead weight, the operation of personnel is reduced, the working efficiency is improved, and the artificial production abnormality is reduced.
In a preferred embodiment of the present embodiment, the tail shank connection mechanism 1 is provided with a spherical connector 11, the hanging rod platform 2 is provided with a spherical connection hole 21, and the spherical connector 11 is swingably connected with the spherical connection hole 21 around a vertical direction and any horizontal direction. The spherical connector and the spherical connecting hole can swing relatively around the vertical direction and any horizontal direction, and rotate smoothly.
In a preferred embodiment of this embodiment, the wire drawing positioning mechanism 3 includes a plurality of side pushing assemblies 31 uniformly distributed around the tail shank connecting mechanism 1, and the side pushing assemblies 31 can push up and release the tail shank connecting mechanism 1 in a horizontal direction. Specifically, the side pushing assembly 31 includes a side pushing plate 311 contacting with the tail handle connecting mechanism 1 and an air cylinder 312 driving the side pushing plate 311 to push and release the tail handle connecting mechanism 1, where the side pushing plate 311 is an arc tetrafluoroethylene plate.
In a preferred embodiment of the present embodiment, the above-mentioned butt joint mechanism 1 is further provided with an elastic restoring member 12 for floating the optical fiber preform along its length direction and a pressure sensor 13 for detecting the pressure applied by the optical fiber preform butt. By arranging the elastic reset part 12, the optical fiber preform can float up and down in a certain range, and when the optical fiber preform is clamped at the furnace mouth of the drawing furnace, the optical fiber preform can float up adaptively, so that production accidents can not occur. When the optical fiber preform rod is clamped at the furnace mouth of the drawing furnace, the pressure applied by the pressure sensor 13 reaches a safety threshold value, and then an alarm is given to remind an operator to check. Specifically, the above-mentioned tail handle connecting mechanism 1 is provided with a tail handle groove 14, one end groove end of the tail handle groove 14 is downward and is opened, and is provided with a safety hasp 15 for preventing the tail handle in the tail handle groove 14 from sliding out of the tail handle groove 14 downward, the notch of the tail handle groove 14 faces to the side, the other groove end of the tail handle groove is provided with the above-mentioned elastic restoring component 12 (spring), and the lower end of the spring is provided with a 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 resetting component or only provided with the pressure sensor, or is not provided at all.
The preferred embodiment of this embodiment further includes a sealing unit for inlet of the wire drawing furnace, where the sealing unit for inlet of the wire drawing furnace includes at least two layers of variable diameter graphite felt 41 and at least one layer of non-variable diameter graphite felt 42, where the variable diameter graphite felt 41 has radial cut-out 411 for gradually adjusting inner hole between small hole and large hole, and where the non-variable diameter graphite felt 42 has large hole with fixed hole diameter. Specifically, the variable diameter graphite felt 41 includes an annular body 412 having the small holes, the inner ends of the radial cut openings 411 penetrate through the inner walls of the small holes of the annular body 412, the outer ends of the radial cut openings 411 are located on a circumferential line, the diameter of the circumferential line is the same as that of the large holes, the large holes and the small holes are used for distinguishing two holes and the size of the holes, the size of the holes is not limited, the variable diameter graphite felt 41 can be attached to the outer walls of wires passing through the holes, and the multi-layer variable diameter graphite felt 41 enables the sealing to be more reliable. The non-variable diameter graphite felt 42 is stacked with the variable diameter graphite felt 41, and the non-variable diameter graphite felt 42 presses the variable diameter graphite felt 41. The inlet of the wire drawing furnace is provided with a quartz ring 43 and a plurality of air covers 44, through which the optical fiber preform sequentially passes, the air covers 44 are provided with graphite felt grooves 45, and the non-variable diameter graphite felt 42 and the variable diameter graphite felt 41 are arranged in the graphite felt grooves 45 after being overlapped together.
The preferred embodiment of this embodiment 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 drawing furnace outlet, 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, the position detection mechanism comprises two groups of light sources 51 and a receiver 52, the light sources 51 are arranged on one side of the optical fiber to be detected, the receiver 52 is arranged on the other side of the optical fiber to be detected, the positions of the XY directions can be detected, the position detection mechanism is arranged at the outlet position of the drawing furnace, and the position offset of the optical fiber at the outlet of the drawing furnace can be detected in real time, so that the position of the optical fiber preform is adjusted, and normal production is ensured.
In a preferred embodiment of the present embodiment, the position detecting mechanism is disposed on a detecting platform 6, an optical fiber hole 61 through which an optical fiber passes is formed in the detecting platform 6, and the detecting platform 6 is provided with a guide rail mechanism 62 for guiding the detecting platform 6 to approach and separate 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 slider, the detection positioning mechanism 63 includes a pin and a jack, positioning is realized through cooperation of the pin and the jack, the sliding detection platform is manufactured, the sliding detection platform can be moved to the edge in parallel during maintenance, operation cannot be affected, and the sliding detection platform can be moved to a designated position for positioning when in use.
The application also provides another technical scheme: a method of centering a drawn optical fiber position, comprising the steps of:
(1) Providing a drawn optical fiber position centering device as described 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 or not by the control unit, if so, returning to the step (2), and if not, entering the step (5);
(5) The optical fiber preform is adjusted by the optical fiber drawing positioning mechanism so that the positional deviation is maintained within a set range.
The diameter of the incoming material of the optical fiber preform is not stable in a small range and particularly can be severely fluctuated near the end, 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 larger due to the fact that the optical fiber preform is shorter, so that the adjustment cannot be performed by using an integral bending formula.
In a preferred embodiment of the present application, position adjustment data of optical fiber preforms of different sizes during drawing is collected, the position adjustment data includes a size of the optical fiber preform, an adjustment interval, and an adjustment displacement, 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 a detection result of the position detection mechanism. Setting a sampling length interval in a normal wiredrawing state, and fine-tuning the corresponding position of a tail pipe propelling 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 advanced fine adjustment, so that the stability of the optical fiber position is ensured; the adjustment interval can be manually set, the adjustment frequency is controlled according to the wire drawing state, and frequent centering operation is reduced; the application records all adjustment data, searches the problem point, can judge the integral difference of the optical fiber preform according to the data, and provides basis for the quality feedback and stable production of the optical fiber preform. Recording different diameters, lengths, adjustment data and the like of the optical rods, and finally summarizing the average offset to obtain the bending degree and related drawing characteristics of the optical fiber, so that a special industrial database is formed, and data support is provided for later improvement.
In a preferred embodiment of the present embodiment, the furnace height is calculated according to the following formula:
furnace height = total length of light bar-length of furnace light bar-wire drawing advancing distance;
wherein,,
the furnace feeding height is a real-time distance value between the hanging rod platform and the wire drawing furnace;
the length of the furnace feeding optical rod is set as a set value, and 500-600 mm is taken;
the wire drawing advancing distance is the total descending distance of the hanging rod platform.
And setting the total length of the light bar and the length of the light bar entering the furnace in the PSU control interface, and calculating the height of the light bar entering the furnace. The special distance detection equipment is omitted, and 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 application. Various modifications to the embodiments of the application 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 application. Thus, the present application 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 (6)
1. The device is characterized by also comprising a drawing furnace outlet detection unit, wherein the drawing furnace outlet detection unit comprises a position detection mechanism for detecting the position of an 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;
the tail handle connecting mechanism is connected below the hanging rod platform in a swinging manner around the vertical direction and any horizontal direction, and the hanging rod platform is also provided with a wire drawing positioning mechanism for fixing the tail handle connecting mechanism in different postures;
the tail handle connecting mechanism is provided with a spherical connector, the hanging rod platform is provided with a spherical connecting hole, and the spherical connector can swing around the vertical direction and any horizontal direction to be connected with the spherical connecting hole;
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 jack and loosen the tail handle connecting mechanism along the horizontal direction;
the tail handle connecting mechanism is also provided with an elastic resetting component which enables the optical fiber preform to float along the length direction of the optical fiber preform and a pressure sensor for detecting the pressure applied by the tail handle of the optical fiber preform.
2. The fiber optic drawing position centering device of claim 1, further comprising a furnace inlet seal unit comprising at least two layers of variable diameter graphite felt disposed at the furnace inlet and at least one layer of non-variable diameter graphite felt having radial cut openings with inner bores thereof being incrementally adjustable between small and large bores, the non-variable diameter graphite felt having large bores with fixed bore diameters.
3. The device for centering a drawn optical fiber according to claim 1, wherein the position detecting mechanism is arranged on a detecting platform, an optical fiber hole for the optical fiber to pass through is arranged on the detecting platform, and the detecting platform is provided with a guide rail mechanism for guiding the detecting platform to approach to and separate from an outlet of the drawing furnace and a detecting and positioning mechanism for positioning the detecting platform at the outlet of the drawing furnace.
4. A method of centering a drawn optical fiber position, comprising the steps of:
(1) Providing a drawn optical fiber position centering device as claimed in claim 3;
(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 or not 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 by the optical fiber drawing positioning mechanism so as to keep the position offset within a set range.
5. The method according to claim 4, wherein position adjustment data of optical fiber preforms of different sizes at the time of drawing is collected, the position adjustment data including the size of the optical fiber preform, an adjustment interval, and an adjustment displacement amount, and the control unit controls the optical fiber drawing positioning mechanism to move in accordance with the position adjustment data and corrects the position adjustment data in real time in accordance with the detection result of the position detection mechanism.
6. The method of centering a drawn optical fiber according to claim 4, wherein the in-furnace height is calculated according to the formula:
furnace height = total length of light bar-length of furnace light bar-wire drawing advancing distance;
wherein,,
the furnace feeding height is a real-time distance value between the hanging rod platform and the wire drawing furnace;
the length of the furnace feeding optical rod is set as a set value, and 500-600 mm is taken;
the wire drawing advancing distance is the total descending distance of the hanging rod platform.
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| CN202111573502.XA CN114230171B (en) | 2021-12-21 | 2021-12-21 | Device and method for centering drawn optical fiber position |
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| CN202111573502.XA CN114230171B (en) | 2021-12-21 | 2021-12-21 | Device and method for centering drawn optical fiber position |
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| CN114230171B true CN114230171B (en) | 2023-11-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| 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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|---|---|---|---|---|
| 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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