CN217052048U - Optical fiber annealing device suitable for high-speed optical fiber drawing - Google Patents
Optical fiber annealing device suitable for high-speed optical fiber drawing Download PDFInfo
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- CN217052048U CN217052048U CN202220901673.4U CN202220901673U CN217052048U CN 217052048 U CN217052048 U CN 217052048U CN 202220901673 U CN202220901673 U CN 202220901673U CN 217052048 U CN217052048 U CN 217052048U
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Abstract
The utility model discloses an optical fiber annealing device suitable for high-speed wire drawing of optic fibre contains upper segment glass annealing pipe, hypomere glass annealing pipe and hoist mechanism, and upper segment glass annealing pipe upper end is connected with the wire drawing stove, and hypomere glass annealing pipe upper end cover is established at upper segment glass annealing pipe lower extreme, and hypomere glass annealing pipe is connected the hoist mechanism drive with hoist mechanism and is followed the vertical lift of lateral surface of upper segment glass annealing pipe. The utility model discloses a two telescopic tube structure's annealing pipe that can stretch out and draw back thereby with the operation of the stub bars such as annealing pipe shrink convenience when waiting the stub bar, high-speed wire drawing then extends and reaches 2 meters and carries out high-speed wire drawing extension, can dismantle hypomere glass annealing pipe and upper segment glass annealing pipe segmentation when maintaining, has solved the technical problem because of the dismantlement difficulty that operating space limitation and glass pipe overlength lead to.
Description
Technical Field
The utility model relates to an optical fiber annealing device, especially an optical fiber annealing device suitable for high-speed wire drawing of optic fibre belongs to optic fibre production facility technical field.
Background
Optical fiber plays a very important role in modern communication systems. The optical fiber is manufactured by heating and softening an optical fiber preform at a high temperature, drawing the optical fiber preform into a glass fiber, coating two layers of polymer resin materials on the surface of the glass fiber, and curing to finally form the optical fiber for communication. The optical fiber annealing extension tube is a heat-insulating tube disposed below the drawing furnace in order to prevent the optical fiber from being quenched to affect its performance after being drawn out of the drawing furnace. The thermal insulation pipe mainly influences the attenuation of the optical fiber, the stability of the diameter of a cladding and the warping degree of the optical fiber. The existing optical fiber annealing device below an optical fiber drawing furnace suitable for low-speed drawing is characterized in that a glass tube is arranged below the optical fiber drawing furnace, the length of an annealing pipe can only reach 1.2m when the optical fiber is drawn at a low speed of less than 1500m/min, and the length of the annealing pipe below the optical fiber drawing furnace can reach 2m when the speed of the optical fiber is increased to more than 2000 m/min. The 2m glass annealing pipe is directly adopted, and due to the limitation of an operation field, the following problems exist: 1. the operation of cleaning the annealing pipe is inconvenient, and the operation of waiting for the stub bar is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an optical fiber annealing device suitable for the high-speed wire drawing of optic fibre is provided, solve the inconvenient defect of stub bar operation such as the clean inconvenience of the long glass annealing pipe of prior art and wait.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides an optical fiber annealing device suitable for high-speed wire drawing of optical fiber which characterized in that: the glass annealing furnace comprises an upper glass annealing pipe, a lower glass annealing pipe and a lifting mechanism, wherein the upper end of the upper glass annealing pipe is connected with the wire drawing furnace, the upper end of the lower glass annealing pipe is sleeved at the lower end of the upper glass annealing pipe, and the lower glass annealing pipe and the lifting mechanism are connected with the lifting mechanism to drive the glass annealing pipe to vertically lift along the outer side surface of the upper glass annealing pipe.
Furthermore, a graphite piece is arranged on the lower side in the wire drawing furnace, a through hole is formed in the bottom surface of the wire drawing furnace and corresponds to the lower portion of the graphite piece, and the upper end of the upper glass annealing pipe penetrates into the wire drawing furnace through the through hole in the bottom surface of the wire drawing furnace and is sleeved at the lower end of the graphite piece.
Furthermore, a high-temperature-resistant sealing ring is arranged in a gap between the upper-section glass annealing pipe and the through hole on the bottom surface of the wire drawing furnace.
Furthermore, a quartz sealing ring is arranged between the lower glass annealing pipe and the upper glass annealing pipe, the quartz sealing ring is fixed at the upper end of the lower glass annealing pipe, and the inner side of the quartz sealing ring is sleeved outside the lower end of the upper glass annealing pipe and can slide up and down along the outer side surface of the upper glass annealing pipe.
Furthermore, the lower end of the lower glass annealing pipe is provided with an annealing pipe bracket which is an annular bracket, the upper side of the annealing pipe bracket is fixedly connected with the lower end of the lower glass annealing pipe, and the inner diameter of the annealing pipe bracket is smaller than that of the upper glass annealing pipe.
Furthermore, the lifting mechanism comprises a lifting cylinder and a metal pull rod, the metal pull rod is arranged in the vertical direction, the lower end of the metal pull rod is hinged to the annealing pipe bracket, the upper end of the metal pull rod is connected with the end part of a piston rod of the lifting cylinder through a connecting piece, and the lifting cylinder is installed on the base in the vertical direction.
Further, the upper end of the lifting cylinder is provided with a cylinder block, the lifting cylinder is arranged along the vertical direction, the lower side of the cylinder block is fixedly connected with the upper end of the lifting cylinder, and the side face of the cylinder block is hinged to the base.
Further, the annealing pipe bracket comprises an annular bracket body and a pull rod mounting lug part, the pull rod mounting lug part is fixed on the side face of the annular bracket body, and the lower end of the metal pull rod is hinged to the upper side face of the pull rod mounting lug part.
Further, the length of the upper glass annealing pipe and the lower glass annealing pipe is less than 1.2 meters.
Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses a two bushing structure's that can stretch out and draw back annealing pipe, thereby with the convenient stub bar operation such as annealing pipe shrink when waiting the stub bar, high-speed wire drawing then extends and reaches 2 meters and carries out high-speed wire drawing extension, can dismantle hypomere glass annealing pipe and upper segment glass annealing pipe segmentation when maintaining, has solved the technical problem because of the dismantlement difficulty that operating space limitation and glass pipe overlength lead to.
Drawings
Fig. 1 is a schematic diagram of an optical fiber annealing device suitable for high-speed drawing of optical fibers according to the present invention.
Detailed Description
To elaborate on the technical solution adopted by the present invention for achieving the predetermined technical purpose, the technical solution in the embodiment of the present invention will be clearly and completely described below by combining with the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a partial embodiment of the present invention, not a whole embodiment, and technical means or technical features in the embodiment of the present invention can be replaced without paying creative efforts, and the present invention will be described in detail below by combining with the embodiments with reference to the drawings.
As shown in fig. 1, the utility model discloses an optical fiber annealing device suitable for high-speed wire drawing of optic fibre contains upper segment glass annealing pipe 1, hypomere glass annealing pipe 2 and hoist mechanism, and 1 upper end of upper segment glass annealing pipe is connected with wire drawing furnace 3, and the 2 upper pot heads of hypomere glass annealing pipe are established at 1 lower extreme of upper segment glass annealing pipe, and hypomere glass annealing pipe 2 is connected the hoist mechanism drive with hoist mechanism and is followed the vertical lift of lateral surface of upper segment glass annealing pipe 1. The upper glass annealing pipe 1 and the lower glass annealing pipe 2 form a telescopic annealing pipe structure through a sleeving structure, so that the annealing pipes can be conveniently contracted to a stub when waiting for the stub, and the annealing pipes can be lengthened when high-speed wire drawing is carried out. The automatic extension and retraction of the annealing pipe can be realized by stopping the lifting mechanism, and the operation is convenient and fast.
The graphite piece 4 is arranged on the lower side inside the wire drawing furnace 3, a through hole is formed in the bottom surface of the wire drawing furnace 3 corresponding to the lower side of the graphite piece 4, and the upper end of the upper-section glass annealing pipe 1 penetrates into the wire drawing furnace 3 through the through hole in the bottom surface of the wire drawing furnace 3 and is sleeved at the lower end of the graphite piece 4. A high-temperature-resistant sealing ring 5 is arranged in a gap between the upper glass annealing pipe 1 and the through hole in the bottom surface of the wire drawing furnace 3, so that the sealing property of the wire drawing furnace 3 is ensured.
A quartz sealing ring 6 is arranged between the lower glass annealing pipe 2 and the upper glass annealing pipe 1, the quartz sealing ring 6 is fixed at the upper end of the lower glass annealing pipe 2, and the inner side of the quartz sealing ring 6 is sleeved outside the lower end of the upper glass annealing pipe 1 and can slide up and down along the outer side surface of the upper glass annealing pipe 1. The quartz sealing ring 6 realizes the sealing between the lower glass annealing pipe 2 and the upper glass annealing pipe 1, and ensures the good sealing performance of the whole telescopic annealing pipe.
The lower end of the lower glass annealing pipe 2 is provided with an annealing pipe bracket 7, the annealing pipe bracket 7 is an annular bracket, the upper side of the annealing pipe bracket 7 is fixedly connected with the lower end of the lower glass annealing pipe 2, and the inner diameter of the annealing pipe bracket 7 is smaller than that of the upper glass annealing pipe 1. When the lower glass annealing tube 2 is lifted to the uppermost position, the lower end of the upper glass annealing tube 1 is supported on the upper side surface of the annealing tube bracket 7.
The lifting mechanism comprises a lifting cylinder 8 and a metal pull rod 9, the metal pull rod 9 is arranged in the vertical direction, the lower end of the metal pull rod 9 is hinged to the annealing pipe bracket 7, the upper end of the metal pull rod 9 is connected with the end part of a piston rod of the lifting cylinder 8 through a connecting piece 10, and the lifting cylinder 8 is installed on a base 11 in the vertical direction. Promote the upper end of cylinder 8 and be provided with cylinder block 12, promote cylinder 8 and set up along vertical direction, cylinder block 12 downside and the fixed connection of 8 upper ends of promotion cylinders, and cylinder block 12 side articulates on base 11. The lifting cylinder 8 and the metal pull rod 9 form a cylinder driving mechanism, and the two ends of the cylinder driving mechanism are connected through a hinged structure, so that the transverse stress generated on the lower glass annealing pipe 2 in the cylinder driving process can be avoided, and the safety of the lower glass annealing pipe 2 is ensured. In another embodiment of the present application, the lifting mechanism uses a motor-driven screw to lift the annealing tube bracket 7.
The annealing pipe bracket 7 comprises an annular bracket body and a pull rod mounting ear part 13, the pull rod mounting ear part 13 is fixed on the side surface of the annular bracket body, and the lower end of the metal pull rod 9 is hinged with the upper side surface of the pull rod mounting ear part 13. By adopting the ear structure, the size and the weight of the annealing pipe bracket 7 can be effectively reduced, the cost is reduced, and meanwhile, the small ear structure can effectively avoid the gravity imbalance generated on the annealing pipe bracket 7.
The length of the upper glass annealing tube 1 and the lower glass annealing tube 2 is less than 1.2 m. When the two sections of annealing pipes are contracted, the length is less than 1.2 meters, and the operation of waiting for the stub bar is convenient. And the length of the wire can reach 2 meters when the wire is stretched, so that the wire drawing requirement at high speed is met.
The utility model discloses an optical fiber annealing device's work flow suitable for high-speed wire drawing of optic fibre does: and when the power of the wire drawing furnace 3 is 0, judging that the wire drawing is finished, controlling the lifting cylinder 8 to contract, pulling the metal pull rod 9 to contract by the lifting cylinder 8, and driving the annealing pipe bracket 7, the lower glass annealing pipe 2 and the quartz sealing ring 6 to move upwards by the metal pull rod 9. Until the lower end of the upper glass annealing tube 1 contacts the annealing tube bracket 7. And when the power of the wire drawing furnace 3 is not 0, the rotation speed judgment of the main traction feedback is combined, and when the rotation speed exceeds 100m/min, the wire drawing is judged to start to increase the speed. When the wire drawing and speed increasing production is started, the lifting cylinder 8 pushes the metal pull rod 9 to move downwards, and the metal pull rod 9 drives the annealing pipe bracket 7, the lower glass annealing pipe 2 and the quartz sealing ring 6 to move downwards, so that the length of the whole annealing pipe is prolonged to 2 meters. When the machine is stopped for cleaning, the upper glass annealing pipe 1 and the lower glass annealing pipe 2 can be respectively disassembled for cleaning, thereby avoiding the problem of difficult disassembly caused by limited operation space and overlong glass annealing pipe.
The utility model discloses a two bushing structure's that can stretch out and draw back annealing pipe, thereby with the convenient stub bar operation such as annealing pipe shrink when waiting the stub bar, high-speed wire drawing then extends and reaches 2 meters and carries out high-speed wire drawing extension, can dismantle hypomere glass annealing pipe and upper segment glass annealing pipe segmentation when maintaining, has solved the technical problem because of the dismantlement difficulty that operating space limitation and glass pipe overlength lead to.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and all those skilled in the art can make modifications or modifications equivalent embodiments without departing from the technical spirit of the present invention.
Claims (9)
1. The utility model provides an optical fiber annealing device suitable for high-speed wire drawing of optic fibre which characterized in that: the glass annealing furnace comprises an upper glass annealing pipe, a lower glass annealing pipe and a lifting mechanism, wherein the upper end of the upper glass annealing pipe is connected with the wire drawing furnace, the lower end of the upper glass annealing pipe is sleeved at the upper end of the lower glass annealing pipe, and the lower glass annealing pipe is connected with the lifting mechanism to drive the lifting mechanism to vertically lift along the outer side surface of the upper glass annealing pipe.
2. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 1, wherein: the graphite piece is arranged on the lower side in the wire drawing furnace, a through hole is formed in the bottom surface of the wire drawing furnace and corresponds to the lower portion of the graphite piece, and the upper end of the upper-section glass annealing pipe penetrates into the wire drawing furnace through the through hole in the bottom surface of the wire drawing furnace and is sleeved at the lower end of the graphite piece.
3. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 2, wherein: and a high-temperature-resistant sealing ring is arranged in a gap between the upper-section glass annealing pipe and the through hole on the bottom surface of the wire drawing furnace.
4. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 1, wherein: a quartz sealing ring is arranged between the lower section glass annealing pipe and the upper section glass annealing pipe, the quartz sealing ring is fixed at the upper end of the lower section glass annealing pipe, and the inner side of the quartz sealing ring is sleeved on the outer side of the lower end of the upper section glass annealing pipe and can slide up and down along the outer side surface of the upper section glass annealing pipe.
5. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 1, wherein: the lower end of the lower glass annealing pipe is provided with an annealing pipe bracket which is an annular bracket, the upper side of the annealing pipe bracket is fixedly connected with the lower end of the lower glass annealing pipe, and the inner diameter of the annealing pipe bracket is smaller than that of the upper glass annealing pipe.
6. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 5, wherein: the lifting mechanism comprises a lifting cylinder and a metal pull rod, the metal pull rod is arranged along the vertical direction, the lower end of the metal pull rod is hinged to the annealing pipe bracket, the upper end of the metal pull rod is connected with the end part of a piston rod of the lifting cylinder through a connecting piece, and the lifting cylinder is installed on the base along the vertical direction.
7. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 6, wherein: the upper end of the lifting cylinder is provided with a cylinder seat, the lifting cylinder is arranged along the vertical direction, the lower side of the cylinder seat is fixedly connected with the upper end of the lifting cylinder, and the side surface of the cylinder seat is hinged on the base.
8. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 6, wherein: the annealing pipe bracket comprises an annular bracket body and a pull rod mounting ear part, the pull rod mounting ear part is fixed on the side face of the annular bracket body, and the lower end of the metal pull rod is hinged with the upper side face of the pull rod mounting ear part.
9. An optical fiber annealing apparatus suitable for high-speed drawing of optical fiber according to claim 1, wherein: the length of the upper glass annealing pipe and the lower glass annealing pipe is less than 1.2 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220901673.4U CN217052048U (en) | 2022-04-19 | 2022-04-19 | Optical fiber annealing device suitable for high-speed optical fiber drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220901673.4U CN217052048U (en) | 2022-04-19 | 2022-04-19 | Optical fiber annealing device suitable for high-speed optical fiber drawing |
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| Publication Number | Publication Date |
|---|---|
| CN217052048U true CN217052048U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220901673.4U Active CN217052048U (en) | 2022-04-19 | 2022-04-19 | Optical fiber annealing device suitable for high-speed optical fiber drawing |
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| Country | Link |
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| CN (1) | CN217052048U (en) |
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- 2022-04-19 CN CN202220901673.4U patent/CN217052048U/en active Active
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