CN115611509B - Multifunctional rod feeding device for optical fiber drawing and optical fiber drawing equipment - Google Patents
Multifunctional rod feeding device for optical fiber drawing and optical fiber drawing equipment Download PDFInfo
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- CN115611509B CN115611509B CN202211372819.1A CN202211372819A CN115611509B CN 115611509 B CN115611509 B CN 115611509B CN 202211372819 A CN202211372819 A CN 202211372819A CN 115611509 B CN115611509 B CN 115611509B
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- optical fiber
- feeding device
- branch pipeline
- fiber preform
- fiber drawing
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 96
- 238000012681 fiber drawing Methods 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 47
- 210000004907 gland Anatomy 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000004038 photonic crystal Substances 0.000 abstract description 3
- 238000005491 wire drawing Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010621 bar drawing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- C03B37/032—Drawing means, e.g. drawing drums ; Traction or tensioning devices for glass optical fibres
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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 invention discloses a multifunctional rod feeding device for optical fiber drawing and optical fiber drawing equipment, which belong to the technical field of optical fiber drawing, and in order to meet the drawing requirements of various optical fiber preforms, the multifunctional rod feeding device for optical fiber drawing comprises a gas pressure control system (3) and a moving mechanism (1) and a rotating mechanism (2) which are sequentially connected, wherein the rotating mechanism (2) can clamp an optical fiber preform (5) and enable the optical fiber preform (5) to rotate, the moving mechanism (1) can enable the optical fiber preform (5) to move along the left-right direction and the front-back direction, and the gas pressure control system (3) can control the gas pressure in an axial through hole (51) in the optical fiber preform (5). The multifunctional rod feeding device for optical fiber drawing can simultaneously meet the production requirements of rotary drawing, ordinary optical fiber sleeve rod drawing and photonic crystal optical fiber sleeve rod drawing.
Description
Technical Field
The invention relates to the technical field of optical fiber drawing, in particular to a multifunctional rod feeding device for optical fiber drawing and optical fiber drawing equipment.
Background
Along with the expansion of the application of the optical fiber, the variety of the special optical fiber is increased, and the technological requirements are changed. The existing rod feeding device for optical fiber preform drawing has single function, can not meet the drawing requirements of various special optical fiber preforms, and has a lifting space in some technical aspects. Although the existing rotary wire drawing device has a rotary function, the position of the optical fiber preform is fixed, and the position of the optical fiber preform in a wire drawing furnace cannot be finely adjusted on line; in the application of the bushing rod wire drawing, no device or apparatus for controlling the gas pressure in the cavity of the bushing rod is available.
Disclosure of Invention
In order to meet the drawing requirements of various optical fiber preformed bars, the invention provides a multifunctional bar feeding device and optical fiber drawing equipment for optical fiber drawing, and the multifunctional bar feeding device for optical fiber drawing can simultaneously meet the production requirements of rotary drawing, ordinary optical fiber sleeve bar drawing and photonic crystal optical fiber sleeve bar drawing. The rotary function is combined with the rod displacement movement function, and the wire drawing speed, the rod discharging speed and the rotary speed are controlled in real time on line, so that the problems of stable production speed and index control of rotary wire drawing mass production are solved.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a multi-functional stick device that send for optical fiber drawing, includes gas pressure control system and connects gradually moving mechanism and slewing mechanism, and slewing mechanism can the centre gripping optical fiber perform and make optical fiber perform rotation, and moving mechanism can make optical fiber perform remove along left and right direction and fore-and-aft direction, and gas pressure control system is connected with slewing mechanism, and gas pressure control system can control the gas pressure in the axial through hole in the optical fiber perform.
The optical fiber drawing equipment comprises a rod feeding device and a drawing furnace which are arranged up and down, wherein the rod feeding device is the multifunctional rod feeding device for optical fiber drawing.
The beneficial effects of the invention are as follows:
1. the multifunctional rod feeding device for optical fiber drawing has the functions of rotation and four-way movement of the optical fiber preform rod and control of the cavity gas pressure of the optical fiber preform rod, so that one device can meet the requirements of various special optical fiber drawing.
2. The rotation function meets the requirement of rotary wire drawing. The control of drawing speed, rod discharging speed and rotating speed is combined, and the special parameters and indexes of the rotating drawn optical fiber can be met.
3. The functions of moving the optical fiber preform left and right and back and forth are added, and the real-time rod position adjustment of the optical fiber preform in the furnace in the drawing process can be met.
4. The gas pressure control system is configured, and the gas pressure control system has two working modes of positive gas pressure control and negative gas pressure control, so that the gas pressure control system is suitable for drawing a common optical fiber sleeve rod and drawing a photonic crystal optical fiber sleeve rod. The gas pressure control system can adjust the gas pressure on line in real time according to the production requirement of the optical fiber and can stably adjust the pressure. The pressure control method of the system ensures finer pressure control and small deviation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a schematic front view of a multifunctional rod feeding apparatus for optical fiber drawing according to the present invention.
Fig. 2 is a schematic view of the direction a in fig. 1.
Fig. 3 is a schematic front view of a side-to-side glide assembly.
Fig. 4 is a left side schematic view of a left-right slip assembly.
Fig. 5 is a schematic front view of a front-to-rear glide assembly.
Fig. 6 is a schematic front view of the rotating mechanism.
Fig. 7 is a perspective view of the rotating mechanism.
Fig. 8 is a schematic cross-sectional view of a rotation mechanism.
Fig. 9 is a schematic diagram of a gas pressure control system.
Fig. 10 is a schematic diagram of the control principle of the gas pressure control system.
The reference numerals are explained as follows:
1. a moving mechanism; 2. a rotating mechanism; 3. a gas pressure control system; 4. a wire drawing furnace; 5. an optical fiber preform;
11. a left-right slip assembly; 12. a front-rear sliding assembly;
21. an inner sleeve; 22. a rotation driving unit; 23. a chuck; 24. an outer sleeve; 25. sealing the joint; 26. a sealing gland; 27. a support; 28. a transmission belt wheel; 29. a light reflecting plate;
31. a first branch pipe; 32. a second branch pipe; 33. a third pipeline; 34. a main pipeline;
51. an axial through-hole;
111. a first fixing plate; 112. a first moving plate; 113. a first slide rail; 114. a first slider; 115. a first nut; 116. a first screw rod; 117. a first driving unit;
121. a second fixing plate; 122. a second moving plate; 123. a second slide rail; 124. a second slider; 125. a second nut; 126. a second screw rod; 127. a second driving unit;
311. a first electromagnetic valve; 312. a first throttle valve;
321. a second electromagnetic valve; 322. a second throttle valve; 323. a first gas mass flow meter; 324. a first air bag; 325. a one-way valve; 326. a vacuum pump; 327. a second pressure sensor;
331. a third electromagnetic valve; 332. a second gas mass flow meter; 333. a pressure regulating valve; 334. a second air bag; 335. a quick connector; 336. a third pressure sensor;
341. a first pressure sensor.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
A multifunctional rod feeding device for optical fiber drawing comprises a gas pressure control system 3 and a moving mechanism 1 and a rotating mechanism 2 which are sequentially connected, wherein the rotating mechanism 2 can clamp an optical fiber preform 5 and enable the optical fiber preform 5 to rotate, the moving mechanism 1 can enable the optical fiber preform 5 to move in the left-right direction and the front-back direction, the gas pressure control system 3 is connected with the rotating mechanism 2, and the gas pressure control system 3 can control the gas pressure in an axial through hole 51 in the optical fiber preform 5, as shown in fig. 1.
In this embodiment, the moving mechanism 1 includes a left-right sliding component 11 and a front-back sliding component 12 which are sequentially connected, and the left-right sliding component 11, the front-back sliding component 12 and the rotating mechanism 2 are sequentially connected, that is, the rotating mechanism 2 is connected with the front-back sliding component 12. The left-right slider assembly 11 can move both the rotation mechanism 2 and the front-rear slider assembly 12 in the left-right direction, and the front-rear slider assembly 12 can move the rotation mechanism 2 in the front-rear direction.
In this embodiment, the left-right sliding component 11 includes a first fixed plate 111 and a first moving plate 112 arranged in parallel at intervals, the front-rear sliding component 12 is connected to the first moving plate 112, the first fixed plate 111 and the first moving plate 112 are both in an upright state, and the first fixed plate 111 and the first moving plate 112 are both parallel to the left-right direction. A first slide rail 113, a first slider 114, a first nut 115, and a first screw 116 are provided between the first fixed plate 111 and the first moving plate 112, and the first screw 116 is connected with a first driving unit 117 as shown in fig. 1 to 5.
In this embodiment, the first slide rail 113 and the first screw rod 116 extend in the left-right direction, the first slide rail 113 is fixedly connected to the first fixed plate 111, the first slider 114 is fixedly connected to the first moving plate 112, the first slider 114 is slidably connected to the first slide rail 113, the first nut 115 is fixedly connected to the first moving plate 112, and the first driving unit 117 can drive the first screw rod 116 to rotate and move the first moving plate 112 in the left-right direction.
In this embodiment, the front-rear sliding assembly 12 includes a second fixed plate 121 and a second moving plate 122 disposed in parallel at intervals, the rotating mechanism 2 is connected to the second moving plate 122, the second fixed plate 121 is connected to and fixed to the first moving plate 112, and the second fixed plate 121 and the second moving plate 122 are both in a horizontal state. A second slide rail 123, a second slider 124, a second nut 125, and a second screw rod 126 are provided between the second fixed plate 121 and the second moving plate 122, and the second screw rod 126 is connected with a second driving unit 127 as shown in fig. 1 to 5.
In this embodiment, the second slide rail 123 and the second screw rod 126 both extend along the front-rear direction, the second slide rail 123 is fixedly connected with the second fixing plate 121, the second slider 124 is fixedly connected with the second moving plate 122, the second slider 124 is slidably connected with the second slide rail 123, the second nut 125 is fixedly connected with the second moving plate 122, and the second driving unit 127 can drive the second screw rod 126 to rotate and move the second moving plate 122 along the front-rear direction.
In this embodiment, the rotating mechanism 2 includes a support 27, and an inner sleeve 21 and a rotation driving unit 22 which are sequentially connected, the inner sleeve 21 is in an upright state, the inner sleeve 21 can be sleeved outside the optical fiber preform 5, the inner sleeve 21 can be in sealing connection with the optical fiber preform 5, a chuck 23 is provided at the lower end of the inner sleeve 21, the chuck 23 can clamp and fix the optical fiber preform 5, when the inner sleeve 21 is sleeved outside the optical fiber preform 5, the axis of the inner sleeve 21 coincides with the axis of the optical fiber preform 5, and the rotation driving unit 22 can drive the inner sleeve 21 and the optical fiber preform 5 to rotate (the rotation means is to rotate about its own axis), as shown in fig. 6 to 8.
The inner sleeve 21 and the rotary driving unit 22 are both arranged on the support 27, the inner sleeve 21 is connected with the support 27 through an outer sleeve 24, the rotary driving unit 22 is fixedly connected with the support 27 through a mounting frame, the support 27 is fixedly connected with the second moving plate 122, the support 27 is positioned behind the second moving plate 122, the rotary driving unit 22 drives the inner sleeve 21 to rotate in a chain transmission, gear transmission or belt transmission mode and the like, preferably, the rotary driving unit 22 drives the inner sleeve 21 to rotate in a belt transmission mode, and a transmission belt wheel 28 is sleeved outside the inner sleeve 21.
In this embodiment, the upper end of the inner sleeve 21 is sequentially connected with an outer sleeve 24, a sealing gland 26 and a sealing joint 25, the axis of the inner sleeve 21, the axis of the outer sleeve 24, the axis of the sealing gland 26 and the axis of the sealing joint 25 are overlapped, the outer sleeve 24 is sleeved outside the upper end of the inner sleeve 21, the outer sleeve 24 is in rotary sealing connection with the optical fiber preform 5 or the inner sleeve 21 is in rotary sealing connection with the optical fiber preform 5, the lower end of the sealing gland 26 is sleeved in the outer sleeve 24, the sealing gland 26 is in detachable sealing connection with the outer sleeve 24, the sealing joint 25 is sleeved in the sealing gland 26, the sealing joint 25 is in detachable sealing connection with the sealing gland 26, the sealing joint 25 is connected with the gas pressure control system 3, the gas pressure control system 3 can be communicated with the axial through hole canal 51 in the optical fiber preform 5 through the sealing joint 25, as shown in fig. 6 to 9.
The above-mentioned rotation sealing connection can be realized through the mode that sets up the sealing washer, in addition, through changing the sealing washer of different internal diameters, can realize sealing connection with the optical fiber perform 5 of different external diameters between. The gas pressure control system 3 communicates with the interior of the sealing joint 25, and the optical fiber preform 5 with or without the axial through-hole 51 may be installed in the inner sleeve 21, and when the optical fiber preform 5 has the axial through-hole 51, the interior of the sealing joint 25 communicates with the axial through-hole 51, so that the gas pressure control system 3 can control the gas pressure in the axial through-hole 51 in the optical fiber preform 5. In addition, a reflector 29 may be disposed between the support 27 and the chuck 23, the reflector 29 is in a horizontal state, the lower surface of the reflector 29 is a reflecting surface, and the reflector 29 is fixedly connected with the support 27.
In this embodiment, the gas pressure control system 3 includes a first branch pipe 31, a second branch pipe 32, a third branch pipe 33, and a main pipe 34, wherein the first branch pipe 31, the second branch pipe 32, and the third branch pipe 33 are connected in parallel, one end of the main pipe 34 is connected to the sealing joint 25, and the other end of the main pipe 34 is connected to an inlet end of the first branch pipe 31, an inlet end of the second branch pipe 32, and an outlet end of the third branch pipe 33.
In the present embodiment, the main pipe 34 is provided with a first pressure sensor 341; the first solenoid valve 311 and the first throttle valve 312 are sequentially provided in the first branch pipe 31 in a direction from the inlet end of the first branch pipe 31 to the outlet end of the first branch pipe 31.
In this embodiment, along the direction from the inlet end of the second branch pipe 32 to the outlet end of the second branch pipe 32, a second electromagnetic valve 321, a second throttle valve 322, a first gas mass flowmeter 323, a first gas bag 324, a check valve 325 and a vacuum pump 326 are sequentially disposed on the second branch pipe 32, and a second pressure sensor 327 is disposed on the first gas bag 324.
In this embodiment, along the direction from the outlet end of the third branch pipe 33 to the inlet end of the third branch pipe 33, a third electromagnetic valve 331, a second gas mass flowmeter 332, a pressure regulating valve 333, a second gas bag 334 and a quick connector 335 are sequentially disposed on the third branch pipe 33, a third pressure sensor 336 is disposed on the second gas bag 334, and the quick connector 335 can be connected with a high-pressure gas source. The first electromagnetic valve 311, the second electromagnetic valve 321 and the third electromagnetic valve 331 are all two-position two-way electromagnetic valves.
The first pressure sensor 341 is installed at a pressure point on the main pipe 34 near the sealing joint 25; the sealing joint 25 is communicated with the air inlet P of the first electromagnetic valve 311, the air inlet P of the second electromagnetic valve 321 and the air outlet A of the third electromagnetic valve 331; the air outlet A of the first electromagnetic valve 311 is communicated with the air inlet of the first throttle valve 312; the air outlet A of the second electromagnetic valve 321 is communicated with the air inlet of the second throttle valve 322; the air outlet of the second throttle valve 322 is communicated with the air inlet of the first gas mass flowmeter 323; the second pressure sensor 327 is mounted on the first air bag 324; the air outlet of the first air mass flowmeter 323 is communicated with the air inlet of the first air bag 324; the air outlet of the first air bag 324 is communicated with the air inlet of the one-way valve 325; the outlet of the check valve 325 communicates with the inlet of the vacuum pump 326.
When negative pressure control is performed on the gas (i.e., the gas pressure in the axial through-hole 51 in the optical fiber preform 5), the pressure of the controlled gas in the axial through-hole 51 in the optical fiber preform 5 is set by the first pressure sensor 341, the first electromagnetic valve 311 and the third electromagnetic valve 331 are closed, the second electromagnetic valve 321 is opened, the second throttle valve 322 is in the set state, the first gas mass flowmeter 323 is in the controlled open state, the vacuum pump 326 is turned on, and thus, the second branch pipe 32 is turned on. Running according to a program set by the control system, and stopping the system when the control pressure reaches a set value; when the pressure deviation value reaches a preset value, the system automatically operates to adjust the pressure to a set value.
The positive pressure control participation components include a sealing joint 25, a first pressure sensor 341, a first electromagnetic valve 311, a second electromagnetic valve 321, a third electromagnetic valve 331, a first throttle valve 312, a second gas mass flowmeter 332, a pressure regulating valve 333, a second gas bag 334, a third pressure sensor 336, and a quick connector 335. The air outlet of the third electromagnetic valve 331 is communicated with the air inlets of the first electromagnetic valve 311 and the second electromagnetic valve 321 and the sealing joint 25, and is the same as the negative pressure control connecting pipe. The air inlet P of the third electromagnetic valve 331 is communicated with the air outlet of the second gas mass flowmeter 332; the air inlet of the second gas mass flowmeter 332 is communicated with the air outlet of the pressure regulating valve 333; an air inlet of the pressure regulating valve 333 is communicated with an air outlet of the second air bag 334; a third pressure sensor 336 is mounted on the second air bag 334; the air inlet of the second air bag 334 is communicated with a quick connector 335 of a high-pressure air source through an air pipe. When the positive pressure control is performed on the gas, the first pressure sensor 341 sets the gas pressure in the axial through hole 51 in the optical fiber preform 5, closes the first electromagnetic valve 311 and the second electromagnetic valve 321, opens the third electromagnetic valve 331, and the second gas mass flowmeter 332 is in a controlled open state, and the pressure regulating valve 333 introduces the pressure gas in a set pressure working state, so that the third branch pipe 33 is conducted. The program set by the control system runs, and when the control pressure reaches a set value, the system stops; when the pressure deviation value reaches a preset value, the system automatically operates to adjust the pressure to a set value.
A method based on the control of the gas pressure control system 3:
1. the positive pressure control method comprises the following steps: entering a positive pressure control mode, setting a target pressure in an axial through hole 51 in the optical fiber preform 5, automatically opening a third electromagnetic valve 331 and a first electromagnetic valve 311, and controlling the opening of a second gas mass flowmeter 332 according to a pressure value fed back by a first pressure sensor 341 and the set target pressure value by a PID operation result to realize positive pressure dynamic control.
2. The negative pressure control method comprises the following steps: entering a negative pressure control mode, setting a target pressure in the axial through hole 51 in the optical fiber preform 5, automatically opening the second electromagnetic valve 321 and the first electromagnetic valve 311, and controlling the opening of the first gas mass flowmeter 323 according to the pressure value fed back by the first pressure sensor 341 and the set target pressure value by the result of PID operation to realize negative pressure dynamic control, as shown in FIG. 10.
An optical fiber drawing apparatus is described below, which includes a rod feeding device and a drawing furnace 4 that are disposed up and down, and the rod feeding device is the above-described multifunctional rod feeding device for optical fiber drawing.
For ease of understanding and description, the present invention is described using absolute positional relationships, where the azimuth term "up" indicates the upper direction in fig. 1, the azimuth term "down" indicates the lower direction in fig. 1, the azimuth term "left" indicates the left direction in fig. 1, the azimuth term "right" indicates the right direction in fig. 1, the azimuth term "front" indicates the direction perpendicular to the paper surface of fig. 1 and directed to the inside of the paper surface, and the azimuth term "rear" indicates the direction perpendicular to the paper surface of fig. 1 and directed to the outside of the paper surface, unless otherwise specified. The invention is described using the reader's perspective view, but the above directional terms are not to be interpreted or interpreted as limiting the scope of the invention.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical features and technical features, technical features and technical scheme, technical scheme and technical scheme, and embodiments of the invention can be freely combined for use.
Claims (9)
1. The multifunctional rod feeding device for optical fiber drawing is characterized by comprising a gas pressure control system (3) and a moving mechanism (1) and a rotating mechanism (2) which are sequentially connected, wherein the rotating mechanism (2) can clamp an optical fiber preform (5) and enable the optical fiber preform (5) to rotate, the moving mechanism (1) can enable the optical fiber preform (5) to move in the left-right direction and the front-back direction, the gas pressure control system (3) is connected with the rotating mechanism (2), and the gas pressure control system (3) can control the gas pressure in an axial through hole (51) in the optical fiber preform (5);
the rotating mechanism (2) comprises a sealing joint (25), the gas pressure control system (3) comprises a first branch pipeline (31), a second branch pipeline (32), a third branch pipeline (33) and a main pipeline (34), one end of the main pipeline (34) is connected with the sealing joint (25), and the other end of the main pipeline (34) is connected with the inlet end of the first branch pipeline (31), the inlet end of the second branch pipeline (32) and the outlet end of the third branch pipeline (33);
a first pressure sensor (341) is arranged on the main pipeline (34);
a first electromagnetic valve (311) and a first throttle valve (312) are sequentially arranged on the first branch pipeline (31) along the direction from the inlet end of the first branch pipeline (31) to the outlet end of the first branch pipeline (31);
a second electromagnetic valve (321), a second throttle valve (322), a first gas flow meter (323), a first gas bag (324), a one-way valve (325) and a vacuum pump (326) are sequentially arranged on the second branch pipeline (32) along the direction from the inlet end of the second branch pipeline (32) to the outlet end of the second branch pipeline (32), and a second pressure sensor (327) is arranged on the first gas bag (324);
along the direction of the exit end of third branch pipeline (33) to the entry end of third branch pipeline (33), set gradually third solenoid valve (331), second gas mass flowmeter (332), air-vent valve (333), second air pocket (334) and quick-connect fitting (335) on third branch pipeline (33), be provided with third pressure sensor (336) on second air pocket (334), quick-connect fitting (335) can be connected with high-pressure air source.
2. The multifunctional rod feeding device for optical fiber drawing according to claim 1, wherein the moving mechanism (1) comprises a left-right sliding component (11) and a front-back sliding component (12) which are sequentially connected, the rotating mechanism (2) is connected with the front-back sliding component (12), the left-right sliding component (11) can enable the rotating mechanism (2) and the front-back sliding component (12) to move in the left-right direction, and the front-back sliding component (12) can enable the rotating mechanism (2) to move in the front-back direction.
3. The multifunctional rod feeding device for optical fiber drawing according to claim 2, wherein the left-right sliding component (11) comprises a first fixed plate (111) and a first movable plate (112) which are arranged at intervals in parallel, the front-rear sliding component (12) is connected with the first movable plate (112), a first sliding rail (113), a first sliding block (114), a first nut (115) and a first screw rod (116) are arranged between the first fixed plate (111) and the first movable plate (112), and the first screw rod (116) is connected with a first driving unit (117).
4. A multifunctional rod feeding device for optical fiber drawing according to claim 3, wherein the first slide rail (113) and the first screw rod (116) are extended in the left-right direction, the first slide rail (113) is connected with the first fixed plate (111), the first slider (114) is connected with the first moving plate (112) and the first slide rail (113), the first nut (115) is connected with the first moving plate (112), and the first driving unit (117) can drive the first screw rod (116) to rotate and move the first moving plate (112) in the left-right direction.
5. The multifunctional rod feeding device for optical fiber drawing according to claim 2, wherein the front-rear sliding assembly (12) comprises a second fixed plate (121) and a second movable plate (122) which are arranged at intervals in parallel, the rotating mechanism (2) is connected with the second movable plate (122), a second sliding rail (123), a second sliding block (124), a second nut (125) and a second screw rod (126) are arranged between the second fixed plate (121) and the second movable plate (122), and the second screw rod (126) is connected with a second driving unit (127).
6. The multifunctional rod feeding device for optical fiber drawing according to claim 5, wherein the second slide rail (123) and the second screw rod (126) each extend in the front-rear direction, the second slide rail (123) is connected with the second fixing plate (121), the second slider (124) is connected with the second moving plate (122) and the second slide rail (123), the second nut (125) is connected with the second moving plate (122), and the second driving unit (127) can drive the second screw rod (126) to rotate and move the second moving plate (122) in the front-rear direction.
7. The multifunctional rod feeding device for optical fiber drawing according to claim 1, wherein the rotating mechanism (2) comprises an inner sleeve (21) and a rotary driving unit (22) which are sequentially connected, the inner sleeve (21) is in an upright state, the inner sleeve (21) can be sleeved outside the optical fiber preform (5), a chuck (23) is arranged at the lower end of the inner sleeve (21), the chuck (23) can clamp and fix the optical fiber preform (5), and the rotary driving unit (22) can drive the inner sleeve (21) and the optical fiber preform (5) to rotate.
8. The multifunctional rod feeding device for optical fiber drawing according to claim 7, wherein the upper end of the inner sleeve (21) is sequentially connected with an outer sleeve (24), a sealing gland (26) and a sealing joint (25), the outer sleeve (24) is sleeved outside the upper end of the inner sleeve (21), the outer sleeve (24) is in rotary sealing connection with the inner sleeve (21), the outer sleeve (24) can be in rotary sealing connection with the optical fiber preform (5) or the inner sleeve (21) can be in rotary sealing connection with the optical fiber preform (5), the lower end of the sealing gland (26) is sleeved in the outer sleeve (24), the sealing gland (26) is in detachable sealing connection with the outer sleeve (24), the sealing joint (25) is sleeved in the sealing gland (26), the sealing joint (25) is in detachable sealing connection with the sealing gland (26), the sealing joint (25) is connected with the gas pressure control system (3), and the gas pressure control system (3) can be communicated with an axial through hole (51) in the optical fiber preform (5) through the sealing joint (25).
9. An optical fiber drawing device, characterized in that the optical fiber drawing device comprises a rod feeding device and a drawing furnace (4) which are arranged up and down, wherein the rod feeding device is the multifunctional rod feeding device for optical fiber drawing according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211372819.1A CN115611509B (en) | 2022-11-03 | 2022-11-03 | Multifunctional rod feeding device for optical fiber drawing and optical fiber drawing equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211372819.1A CN115611509B (en) | 2022-11-03 | 2022-11-03 | Multifunctional rod feeding device for optical fiber drawing and optical fiber drawing equipment |
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| CN115611509A CN115611509A (en) | 2023-01-17 |
| CN115611509B true CN115611509B (en) | 2024-01-16 |
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