Optical fiber preform cooling component

Abstract

The present invention discloses an optical fiber preform cooling assembly, which includes a cooling assembly bracket. A plurality of cooling fans are arranged at the top of the cooling assembly bracket, and a pressure-bearing bracket is arranged in the middle of the cooling assembly bracket. It is characterized in that a plurality of electric sliding structures are arranged at the top of the pressure-bearing bracket, and a preform locking structure is arranged at one end of the electric sliding structure. When the staff needs to cool the preform, the middle part of the preform can be fixed through the preform locking structure, and then the cooling fans are turned on. When the cooling fans are turned on, the electric sliding structures are simultaneously opened and drive the optical fiber preform to move in a direction perpendicular to the cooling fans. Each cooling fan corresponds to a separate optical fiber preform, and the wind direction of the cooling fans in the present invention is outwardly diffused, and the wind of each cooling fan can also perform wind cooling on the optical fiber preforms on both sides.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical fiber preform processing, and specifically relates to an optical fiber preform cooling component. Background Art

[0002] Optical fiber is the abbreviation of optical waveguide fiber, which is a fiber made of glass or plastic and can be used as a tool for light conduction. The fine optical fiber is encapsulated in a plastic sheath, enabling it to bend without breaking. Usually, a light-emitting diode or a laser beam at one end of the optical fiber is used to transmit light pulses to the optical fiber, and a photosensitive element at the other end of the optical fiber is used to detect the pulses. The finished rod can be used as the material finished product for drawing optical fibers. The optical fiber finished rod is the core raw material for manufacturing quartz series optical fibers.

[0003] The optical fiber preform is composed of a core rod and a cladding. There are various production methods for the core rod, and the main principle is based on chemical vapor deposition. Currently, the four mainstream processes are commonly used: the modified chemical vapor deposition method (MCVD), the vapor axial deposition method (VAD), the outside vapor deposition method (OVD), and the plasma chemical vapor deposition method (PCVD). The VAD process is a type of external deposition process. Currently, it is the most widely used core rod manufacturing process in the optical fiber preform industry in China. After powder rod deposition and dehydration sintering, after the sintering work is completed, the optical fiber preform needs to be cooled. In the prior art, for example, the patent document with the Chinese patent application number 201510128453.7 discloses a cooling device for an optical fiber preform. The cooling device of this patent has a bracket, a water-air heat exchanger, and a rod hanging device. The optical fiber preform is fixed through the rod hanging device, and the water-air heat exchanger is used to cool the optical fiber preform. Although the heat dissipation efficiency and the utilization rate of the sintering furnace are improved, there are still the following problems:

[0004] The above cooling device cools a single optical fiber preform through a fan. When multiple optical fiber preforms need to be cooled simultaneously, multiple cooling devices are required. However, the multiple cooling devices are only simply combined, and the cooling functions cannot be enhanced with each other. Therefore, the efficiency cannot be improved when multiple optical fiber preforms are cooled simultaneously, and the cost required for cooling is increased. Summary of the Invention

[0005] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An optical fiber preform cooling assembly includes a cooling assembly bracket. On one side of the top of the cooling assembly bracket, a plurality of heat dissipation fans are provided. In the middle of the cooling assembly bracket, a pressure-bearing bracket is provided. On the top of the pressure-bearing bracket, a plurality of electric sliding structures are provided. At one end of the electric sliding structure, a preform locking structure is provided. The electric sliding structure drives the preform locking structure to perform a linear motion along a direction perpendicular to the heat dissipation fans. At the bottom of the cooling assembly bracket, two power boxes are provided. At one end of each of the two power boxes, a power button is fixedly provided. A plurality of electric sliding structures are all electrically connected to one of the power buttons, and a plurality of heat dissipation fans are all electrically connected to the other power button.

[0008] Preferably, the pressure-bearing bracket includes a pressure-bearing frame and a plurality of pressure-bearing cross plates. A plurality of pressure-bearing cross plates are provided on the top of the pressure-bearing frame, and an electric sliding structure is provided on the top of the pressure-bearing cross plates.

[0009] Preferably, the electric sliding structure includes a support slide rail, a motor, a lead screw, and a sliding support block. A motor is fixedly provided at one end of the support slide rail. The output end of the motor is drivingly connected to the lead screw. The lead screw is arranged on the top of the support slide rail. A sliding support block is slidably arranged on the top of the lead screw, and a preform locking structure is provided on the top of the sliding support block.

[0010] Preferably, the preform locking structure includes a preform locking ring, a locking elliptical ring, a micro elastic disc, a micro heat dissipation fan, a ventilation hole, and an air outlet hole. A plurality of locking elliptical rings are slidably arranged on one side of the preform locking ring. A plurality of ventilation holes are provided on the other side of the preform locking ring. Two symmetrically arranged micro heat dissipation fans are provided on the inner wall of the preform locking ring. A plurality of air outlet holes are provided on the inner side of the preform locking ring. The two micro heat dissipation fans are all electrically connected to the other power button; at one end of the plurality of locking elliptical rings close to each other, a micro elastic disc is fixedly connected, and the plurality of locking elliptical rings are all fixed on the surface of the preform locking ring by bolts.

[0011] Preferably, a wind deflector is provided on the upper part of the heat dissipation fan. The wind deflector is rotatably connected to the upper part of the cooling assembly bracket through a hinge.

[0012] Preferably, a plurality of air guiding tracks are provided on the side of the wind deflector close to the electric sliding structure. The air guiding track includes two clamping plates, and a cone is formed between the two clamping plates.

[0013] Preferably, the sliding support block is located on the side away from the heat dissipation fan, and the motor is located on the side close to the heat dissipation fan.

[0014] Preferably, four baffles are fixedly connected inside the preform locking ring, and the two baffles are respectively located on both sides of the micro heat dissipation fan.

[0015] Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) The present invention provides an optical fiber preform cooling assembly, which has a plurality of cooling fans, an electric sliding structure and a preform locking structure. When the staff needs to cool the preform, the middle part of the preform can be fixed through the preform locking structure, and then the cooling fans are turned on. When the cooling fans are turned on, the electric sliding structure is simultaneously opened and drives the optical fiber preform to move in a direction perpendicular to the cooling fans. Each cooling fan corresponds to a separate optical fiber preform, and the wind direction of the cooling fans in the present invention is outward diffusion. The wind of each cooling fan can also cool the optical fiber preforms on both sides. During the cooling process of the optical fiber preform, the optical fiber preform is moving, so that the surface of the optical fiber preform can be evenly cooled.

[0018] (2) Since the middle part of the optical fiber preform in the present invention is fixed through the preform locking structure, and the part of the optical fiber preform in contact with the preform locking structure cannot be cooled by the cooling fans, the preform locking structure includes a preform locking ring, a micro cooling fan, a locking elliptical ring and an air outlet. The preform locking structure fixes the optical fiber preform through the locking elliptical ring. The outer surface of the optical fiber preform does not directly contact the inner side of the preform locking ring, and a micro cooling fan is arranged inside the preform locking ring. The micro cooling fan can cool the middle part of the optical fiber preform through the air outlet on the inner side of the preform locking ring, avoiding damage to the optical fiber preform caused by the middle part of the optical fiber preform not being cooled in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the optical fiber preform cooling assembly;

[0020] Figure 2 is Figure 1 an enlarged schematic diagram of part B in

[0021] Figure 3 a schematic diagram of the overall electric sliding structure and preform locking structure;

[0022] Figure 4 is a schematic diagram of the preform locking structure;

[0023] Figure 5 is a rear view of the preform locking structure;

[0024] Figure 6 is a schematic diagram of the internal structure of the preform locking ring;

[0025] Figure 7 is a schematic diagram of the micro cooling fan structure;

[0026] Figure 8 is Figure 1 the enlarged structural schematic diagram of position A in

[0027] Figure 9 the rear view of the optical fiber preform cooling component;

[0028] Figure 10 is Figure 9 the enlarged structural schematic diagram of position C in

[0029] Figure 11 the structural schematic diagram of the wind shield.

[0030] The corresponding relationship between the reference signs and the component names in the figure is as follows:

[0031] 100, cooling component bracket; 200, heat dissipation fan; 300, pressure-bearing bracket; 301, pressure-bearing horizontal plate; 400, electric sliding structure; 401, support slide rail; 402, motor; 403, lead screw; 404, sliding support block; 500, preform locking structure; 501, preform locking ring; 502, locking elliptical ring; 503, micro elastic disc; 504, micro heat dissipation fan; 505, ventilation hole; 506, air outlet hole; 600, power supply box; 601, charging jack; 602, power button; 700, wind shield; 701, air guiding track; 702, hinge. Detailed implementation manners

[0032] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that may be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0035] Embodiment 1

[0036] This embodiment provides an optical fiber preform cooling assembly, which includes a cooling assembly support 100. A plurality of cooling fans 200 are arranged at the top of the cooling assembly support 100, and a pressure-bearing support 300 is arranged in the middle of the cooling assembly support 100. It is characterized in that a plurality of electric sliding structures 400 are arranged at the top of the pressure-bearing support 300. One end of the electric sliding structure 400 is provided with a preform locking structure 500. The electric sliding structure 400 drives the preform locking structure 500 to perform a linear motion along a direction perpendicular to the cooling fan 200. Two power boxes 600 are arranged at the bottom of the cooling assembly support 100. One power button 602 is fixedly arranged at one end of each of the two power boxes 600. A plurality of electric sliding structures 400 are all electrically connected to one of the power buttons 602, and a plurality of cooling fans 200 are all electrically connected to the other power button 602.

[0037] In this embodiment, when the staff needs to cool multiple optical fiber preforms at the same time, the middle parts of the multiple optical fiber preforms can be fixed through the multiple preform locking structures 500 in sequence. The power button 602 is turned on, and the multiple cooling fans 200 start to work simultaneously. The electric sliding structures 400 are turned on simultaneously and drive the optical fiber preforms to move in a direction perpendicular to the cooling fans 200. Each cooling fan 200 corresponds to a separate optical fiber preform, and in the present invention, the wind direction of the cooling fan 200 is outward diffusion. The wind force of each cooling fan 200 can also perform wind cooling on the optical fiber preforms on both sides. In this way, when each cooling fan 200 performs heat dissipation work simultaneously, an enhancement of the cooling function can be achieved among them. In this way, the efficiency can be improved when cooling multiple optical fiber preforms at the same time, the cost required for cooling is reduced, and during the cooling process of the optical fiber preforms, the optical fiber preforms are moving, ensuring that the front and rear sections of the optical fiber preforms can be continuously wind-force cooled by the cooling fans 200, avoiding uneven cooling degrees of the front and rear sections of the optical fiber preforms, and ensuring that the surface of the optical fiber preforms can be evenly cooled, thereby improving the quality of the optical fiber preforms after processing.

[0038] Embodiment 2

[0039] Reference Figures 2 - 7This is the second embodiment of the present invention. Based on Embodiment 1, the pressure-bearing support 300 includes a pressure-bearing frame and a plurality of pressure-bearing cross plates 301. A plurality of pressure-bearing cross plates 301 are provided at the top of the pressure-bearing frame. An electric sliding structure 400 is provided at the top of the pressure-bearing cross plate 301. The electric sliding structure 400 includes a support slide rail 401, a motor 402, a lead screw 403, and a sliding support block 404. A motor 402 is fixedly provided at one end of the support slide rail 401. The output end of the motor 402 is drivingly connected to a lead screw 403. The lead screw 403 is arranged on the top of the support slide rail 401. A sliding support block 404 is slidably arranged on the top of the lead screw 403. A preform locking structure 500 is provided at the top of the sliding support block 404. The preform locking structure 500 includes a preform locking ring 501, a locking elliptical ring 502, a micro elastic disc 503, a micro cooling fan 504, a ventilation hole 505, and an air outlet hole 506. A plurality of locking elliptical rings 502 are slidably arranged on one side of the preform locking ring 501. A plurality of ventilation holes 505 are opened on the other side of the preform locking ring 501. Two vertically symmetric micro cooling fans 504 are arranged on the inner wall of the preform locking ring 501. A plurality of air outlet holes 506 are opened on the inner side of the preform locking ring 501. Both of the two micro cooling fans 504 are electrically connected to another power button 602. Micro elastic discs 503 are fixedly connected to the ends of the plurality of locking elliptical rings 502 that are close to each other. The plurality of locking elliptical rings 502 are all fixed to the surface of the preform locking ring 501 by bolts. Four baffles are fixedly connected inside the preform locking ring 501. The two baffles are respectively located on both sides of the micro cooling fan 504. The sliding support block 404 is located on the side away from the cooling fan 200. The motor 402 is located on the side close to the cooling fan 200;

[0040] In this embodiment, the preform locking structure 500 is arranged on the sliding support block 404. When the optical fiber preform in the preform locking structure 500 needs to be moved, the motor 402 in the electric sliding structure 400 starts to work. The output end of the motor 402 drives the lead screw 403 to rotate. In this way, the lead screw 403 can drive the sliding support block 404, the preform locking structure 500 and the optical fiber preform to slide together on the support slide rail 401. And the preform locking structure 500 includes a preform locking ring 501, a micro cooling fan 504, a locking elliptical ring 502 and an air outlet 506. The preform locking structure 500 fixes the optical fiber preform through the locking elliptical ring 502. The staff can place the middle part of the optical fiber preform into the preform locking ring 501. And there are locking elliptical rings 502 arranged in a triangular distribution on the preform locking ring 501. The three locking elliptical rings 502 can move back and forth on the surface of the preform locking ring 501. And the three locking elliptical rings 502 are all fixed on the surface of the preform locking ring 501 through bolts. Then when the staff places the middle part of the optical fiber preform into the preform locking ring 501, the locking elliptical rings 502 arranged in a triangular distribution can be pushed inward until the micro elastic disc 503 on the locking elliptical ring 502 is in close contact with the surface of the optical fiber preform. Then the locking elliptical ring 502 is fixed through bolts. In this way, the outer surface of the optical fiber preform does not directly contact the inner side of the preform locking ring 501, but contacts the micro elastic disc 503 on the locking elliptical ring 502. And there are symmetric micro cooling fans 504 arranged inside the preform locking ring 501. And a plurality of air outlets 506 are opened on the inner side of the preform locking ring 501. The micro cooling fans 504 inside the preform locking ring 501 can blow cold air to the middle part of the optical fiber preform through the air outlets 506. And there is also a ventilation hole 505 on one side of the preform locking ring 501, ensuring better air circulation inside the preform locking ring 501. At the same time, baffles are fixedly arranged on both sides of the micro cooling fan 504 inside the preform locking ring 501, forming a small cavity for the air where the micro cooling fan 504 is located, which is more conducive to the discharge of cold air, avoiding damage to the optical fiber preform caused by the middle position of the optical fiber preform not being cooled in time.

[0041] Embodiment 3

[0042] Reference Figures 9 - 11This is the third embodiment of the present invention. Based on Embodiment 1, a plurality of 702 are provided at the rear end of the cooling component bracket 100. The cooling component bracket 100 is rotatably connected to a wind deflector 700 through the plurality of 702. A plurality of air guide tracks 701 are provided on the side of the wind deflector 700 close to the electric sliding structure 400. The air guide track 701 includes two clamping plates, and a cone is formed between the two clamping plates. The widths of the two clamping plates gradually decrease, and the direction in which the widths of the clamping plates gradually decrease is from bottom to top.

[0043] In this embodiment, a wind deflector 700 is provided at the rear end of the cooling component bracket 100. Since the wind direction of the heat dissipation fan 200 in the present invention is outwardly diffused, it means that the wind direction of the heat dissipation fan 200 diffuses both to the two sides and can also diffuse in the up and down directions. Then, it can be clearly known from Figure 1 that the wind diffused downward by the heat dissipation fan 200 is exactly what the optical fiber preform needs, and the wind diffused to the two sides can meet the heat dissipation requirements of the optical fiber preforms on both sides. However, the wind diffused upward is not utilized at all, resulting in an increase in the cooling cost of the optical fiber preform. Therefore, a wind deflector 700 is provided at the rear end of the cooling component bracket 100, that is, above the heat dissipation fan 200, and the wind deflector 700 is rotatably connected to the cooling component bracket 100 through a hinge 702. When the heat dissipation fan 200 operates and releases the upward diffused wind to the outside, the wind deflector 700 can be rotated so that the wind deflector 700 on the heat dissipation fan 200 is perpendicular to the heat dissipation fan 200. In this way, the wind will be blocked by the wind deflector 700 during the upward diffusion process and change its own movement direction, making the wind direction horizontal or tend to move downward. At the same time, a plurality of air guide tracks 701 are provided on one side of the wind deflector 700. The air guide track 701 includes two clamping plates, and a cone is formed between the two clamping plates. The function of the air guide track 701 is to guide the wind blocked by the wind deflector 700 in terms of direction, so that the wind direction moves downward. At the same time, the widths of the two clamping plates gradually decrease, and the direction in which the widths of the clamping plates gradually decrease is from bottom to top. This means that the wind just blocked by the wind deflector 700 will enter between the two clamping plates, and the widths of the two clamping plates are the widest at this time, and the guiding intensity of the wind is also the greatest. Subsequently, the wind moves between the two clamping plates, and the widths of the two clamping plates gradually decrease, and the guiding intensity of the wind also decreases accordingly. In this way, the wind can diffuse under the guidance, which can not only change the wind but also maximize the cooling of the optical fiber preform, improve the use efficiency of the heat dissipation fan 200, and reduce the use cost of the heat dissipation fan 200.

[0044] The above content is a further detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope determined by the claims submitted for the present invention.

Claims

1. An optical fiber preform cooling assembly, comprising a cooling assembly support bracket (100), a plurality of heat dissipation blowers (200) are arranged on one side of the top of the cooling assembly support bracket (100), and a pressure-bearing support bracket (300) is arranged in the middle of the cooling assembly support bracket (100), characterized in that, A plurality of electric sliding structures (400) are provided at the top of the pressure-bearing support (300). One end of the electric sliding structure (400) is provided with a preform locking structure (500). The electric sliding structure (400) drives the preform locking structure (500) to perform a linear motion along a direction perpendicular to the cooling fan (200). Two power boxes (600) are provided at the bottom of the cooling component support (100). One power button (602) is fixedly provided at one end of each of the two power boxes (600). A plurality of electric sliding structures (400) are electrically connected to one of the power buttons (602), and a plurality of cooling fans (200) are electrically connected to the other power button (602).

2. The optical fiber preform cooling assembly according to claim 1, characterized in that: The pressure-bearing support (300) includes a pressure-bearing frame and a plurality of pressure-bearing cross plates (301). A plurality of pressure-bearing cross plates (301) are provided at the top of the pressure-bearing frame, and an electric sliding structure (400) is provided at the top of the pressure-bearing cross plates (301).

3. The optical fiber preform cooling component according to claim 1, wherein: The electric sliding structure (400) includes a support slide rail (401), a motor (402), a lead screw (403), and a sliding support block (404). A motor (402) is fixedly provided at one end of the support slide rail (401). The output end of the motor (402) is drivingly connected to a lead screw (403). The lead screw (403) is arranged on the top of the support slide rail (401). A sliding support block (404) is slidably arranged on the top of the lead screw (403), and a preform locking structure (500) is provided at the top of the sliding support block (404).

4. The optical fiber preform cooling assembly according to claim 1, wherein: The preform locking structure (500) includes a preform locking ring (501), a locking elliptical ring (502), a micro elastic disc (503), a micro cooling fan (504), a ventilation hole (505), and an air outlet hole (506). A plurality of locking elliptical rings (502) are slidably arranged on one side of the preform locking ring (501). A plurality of ventilation holes (505) are formed on the other side of the preform locking ring (501). Two symmetrically arranged micro cooling fans (504) are provided on the inner wall of the preform locking ring (501). A plurality of air outlet holes (506) are formed on the inner side of the preform locking ring (501). The two micro cooling fans (504) are electrically connected to the other power button (602); Micro elastic discs (503) are fixedly connected to one end of the plurality of locking elliptical rings (502) close to each other, and the plurality of locking elliptical rings (502) are fixed to the surface of the preform locking ring (501) by bolts.

5. The optical fiber preform cooling assembly according to claim 1, wherein: A wind baffle (700) is provided at the upper part of the cooling fan (200). The wind baffle (700) is rotatably connected to the upper part of the cooling component support (100) through a hinge.

6. The optical fiber preform cooling assembly according to claim 5, characterized in that: A plurality of air guiding tracks (701) are provided on one side of the wind baffle (700) close to the electric sliding structure (400). The air guiding track (701) includes two clamping plates, and a cone is formed between the two clamping plates.

7. The optical fiber preform cooling assembly according to claim 3, characterized in that: The sliding support block (404) is located on the side away from the cooling fan (200), and the motor (402) is located on the side close to the cooling fan (200).

8. The optical fiber preform cooling assembly according to claim 4, wherein: Four baffles are fixedly connected inside the preform locking ring (501), and two baffles are respectively located on both sides of the micro cooling fan (504).

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