An optical fiber preform pickling apparatus

Abstract

This application relates to the field of optical fiber preform technology, specifically to an optical fiber preform acid cleaning device, including an acid cleaning mechanism, and further comprising: a base; an acid cleaning tank, the acid cleaning mechanism being mounted on the base and the acid cleaning tank, the acid cleaning tank being rotatably connected to a sealed door; and a placement mechanism, which is located inside the acid cleaning tank. Through the cooperation of a motor, gear two, and gear three, it facilitates the rotation of a power shaft and a disc, thereby facilitating the rotation of multiple fixed seats and multiple optical fiber preforms. It also facilitates the cooperation of a gear ring, multiple gears one, multiple rotating shafts, etc., to drive each fixed seat to rotate independently, thus achieving the purpose of individually rotating the optical fiber preform. This allows the acid cleaning mechanism to better clean the optical fiber preform, improving the efficiency and quality of acid cleaning. Through the cooperation of springs, limit blocks, limit rings, etc., it facilitates the replacement of fixed seats of different specifications, thereby making it suitable for different optical fiber preforms and improving applicability.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber preform technology, specifically to an optical fiber preform acid washing device. Background Technology

[0002] An optical fiber preform (or simply fiber preform) is a quartz glass rod with a specific refractive index profile used to manufacture optical fibers (optical fibers). Preforms typically range in diameter from a few millimeters to tens of millimeters (commonly known as optical rods). The internal structure of the optical fiber is formed within the preform. Because preform fabrication is the most crucial part of the optical fiber manufacturing process, research and improvement of preform manufacturing technology have been ongoing since the mass production of optical fibers began in the late 1970s. The optical fiber preform is the core raw material for manufacturing quartz-based optical fibers. It mainly consists of a pure quartz glass cladding and a germanium-doped quartz glass core. The quartz optical fiber preform is the core of the optical fiber manufacturing process. To improve the quality of the preform and ensure low loss in the optical fiber, it must be treated before drawing and coating. Although quartz glass can resist many acids, hydrofluoric acid (HF) can easily corrode and polish its surface. One of the most mature surface treatment processes for quartz optical fiber preforms in the world uses HF and hydrochloric acid (HCl).

[0003] A search revealed a utility model patent in China with patent publication number CN210796220U, which discloses an optical fiber preform pickling device. The device roughly includes a pickling tank, a hydrofluoric acid storage tank installed on one side of the tank, a hydrochloric acid storage tank installed on the other side, a pure water storage tank installed at the rear of the tank, and a sealed door at the front. During operation, a motor drives a large bevel gear, which in turn drives a small bevel gear, which in turn drives a first gear, which in turn drives a second gear, which in turn drives a third gear, ultimately rotating a turntable. The acid pickling process using a spray tube can achieve uniform acid pickling, improving the overall acid pickling efficiency and quality. However, the above-mentioned device still has certain shortcomings. For example, although the device can simultaneously drive multiple optical fiber preform holders and optical fiber preforms to rotate and pickle, it is not convenient to rotate each optical fiber preform individually when multiple optical fiber preforms are moving. The acid pickling efficiency and quality are still insufficient. In addition, the device is not convenient for quick disassembly and replacement of optical fiber preform holders, and it is not suitable for optical fiber preforms of different specifications. Its applicability is somewhat limited. Therefore, we propose an optical fiber preform acid pickling device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an optical fiber preform pickling device to solve the problems mentioned in the background art. Although the existing technology can simultaneously drive multiple optical fiber preform holders and optical fiber preforms to rotate and pickle, it is not convenient to rotate each optical fiber preform individually when multiple optical fiber preforms are moving. The pickling efficiency and quality are still insufficient. In addition, the above-mentioned device is not convenient for quick disassembly and replacement of optical fiber preform holders and is not suitable for optical fiber preforms of different specifications, thus having certain limitations in applicability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an optical fiber preform pickling device, including a pickling mechanism, and further comprising:

[0006] Base;

[0007] A pickling tank, wherein the pickling mechanism is mounted on a base and a pickling tank, and a sealed tank door is rotatably connected to the pickling tank;

[0008] A placement mechanism is provided inside an acid pickling tank. The placement mechanism includes a partition plate fixedly connected to the acid pickling tank. A power shaft is rotatably connected through the partition plate, one end of which is rotatably connected to the acid pickling tank. A fixing ring is fixedly connected to the partition plate, and a gear ring is fixedly connected inside the fixing ring. A disc is fixedly connected to the power shaft, and multiple rotating shafts are rotatably connected through the disc. Each rotating shaft has a mounting groove and a gear, all of which mesh with the gear ring. A fixing frame is fixedly connected to the mounting groove, and a pull rod is slidably connected through the fixing frame. A limit block is fixedly connected to the pull rod, and a spring is sleeved on the pull rod. A limit ring is placed inside the mounting groove, and the limit block penetrates the mounting groove and is located inside the limit ring. A fixing seat is fixedly connected to the limit ring for driving each optical fiber preform to rotate individually, facilitating the application to optical fiber preforms of different specifications.

[0009] A power mechanism, which is mounted on the pickling tank and the power shaft, is used to provide power.

[0010] Preferably, the power mechanism includes a second gear and a motor. The second gear is fixedly mounted on the power shaft, and the motor is installed inside the pickling tank. The output end of the motor is fixedly mounted with a third gear. The second gear and the third gear mesh to drive the power shaft to rotate.

[0011] Furthermore, the pickling tank is provided with a maintenance port, and a maintenance plate is fixedly connected inside the maintenance port.

[0012] Furthermore, a pull ring is fixedly connected to the pull rod.

[0013] Furthermore, a stabilizing disc is fixedly sleeved on the power shaft, and multiple rotating shafts are rotatably connected to the stabilizing disc.

[0014] Based on the aforementioned solution, an anti-slip layer is fixedly connected inside the fixing base.

[0015] Compared with the prior art, this utility model provides an optical fiber preform pickling equipment, which has the following beneficial effects:

[0016] This optical fiber preform pickling equipment, through the cooperation of a motor, gear two, and gear three, facilitates the rotation of the power shaft and disc, enabling the rotation of multiple fixed seats and multiple optical fiber preforms. The gear ring, multiple gears one, and multiple rotating shafts cooperate to drive each fixed seat to rotate independently, thus achieving the purpose of individually rotating the optical fiber preform. This allows the pickling mechanism to better pickle the optical fiber preform, improving pickling efficiency and quality. The cooperation of springs, limit blocks, and limit rings facilitates the replacement of fixed seats of different specifications, making it suitable for different optical fiber preforms and improving applicability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present application;

[0018] Figure 2 This is a three-dimensional structural diagram of the pickling tank in this application;

[0019] Figure 3 This is a three-dimensional structural diagram of the partition, disc, etc., in this application.

[0020] Figure 4 This is a partial cross-sectional three-dimensional structural diagram showing the cooperation of the partition, fixing ring, disc, etc. in this application.

[0021] In the diagram: 1. Pickling mechanism; 2. Base; 3. Pickling tank; 4. Sealed door; 5. Partition; 6. Drive shaft; 7. Fixing ring; 8. Gear ring; 9. Disc; 10. Rotating shaft; 11. Mounting slot; 12. Gear 1; 13. Fixing frame; 14. Pull rod; 15. Limiting block; 16. Limiting ring; 17. Fixing seat; 18. Gear 2; 19. Motor; 20. Maintenance plate; 21. Pull ring; 22. Stabilizing disc; 23. Anti-slip layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] Please see Figures 1-4 A pickling device for optical fiber preforms, comprising a pickling mechanism 1, and further comprising:

[0024] Base 2;

[0025] Pickling tank 3, pickling mechanism 1 is installed on base 2 and pickling tank 3, and a sealed door 4 is rotatably connected to pickling tank 3;

[0026] The placement mechanism is located inside the pickling tank 3. The placement mechanism includes a partition 5, which is fixedly connected to the pickling tank 3. A drive shaft 6 is rotatably connected through the partition 5, with one end of the drive shaft 6 rotatably connected to the pickling tank 3. A fixing ring 7 is fixedly connected to the partition 5, and a gear ring 8 is fixedly connected inside the fixing ring 7. A disc 9 is fixedly connected to the drive shaft 6, and multiple rotating shafts 10 are rotatably connected through the disc 9. Each rotating shaft 10 has a mounting groove 11 and gears 12 fixedly connected to it. All gears 12 mesh with the gear ring 8. A mounting groove 11 is fixedly connected to... A fixed frame 13 is provided, with a pull rod 14 slidably connected through it. A limit block 15 is fixedly connected to the pull rod 14, and a spring is sleeved on the pull rod 14. A limit ring 16 is placed in the mounting groove 11. The limit block 15 passes through the mounting groove 11 and is located inside the limit ring 16. A fixed seat 17 is fixedly connected to the limit ring 16. A power shaft 6 is used to drive the disc 9 to rotate. A gear 12 and a gear ring 8 cooperate to drive each optical fiber preform to rotate individually. The spring, limit ring 16, etc. are used to facilitate the replacement of the fixed seat 17, which is suitable for optical fiber preforms of different specifications.

[0027] The power mechanism is set on the pickling tank 3 and the power shaft 6. The power mechanism includes a second gear 18 and a motor 19. The second gear 18 is fixedly sleeved on the power shaft 6. The motor 19 is installed in the pickling tank 3. The output end of the motor 19 is fixedly sleeved with a third gear. The second gear 18 and the third gear mesh with each other. The motor 19 is used to provide power. The second gear 18 and the third gear are used to transmit power and drive the power shaft 6 to rotate.

[0028] The pickling tank 3 has a maintenance port, and a maintenance plate 20 is fixedly connected inside the maintenance port for convenient maintenance of the motor 19.

[0029] A pull ring 21 is fixedly connected to the pull rod 14 for easy pulling of the pull rod 14.

[0030] A stabilizing disc 22 is fixedly sleeved on the power shaft 6, and multiple rotating shafts 10 are rotatably connected to the stabilizing disc 22 to increase the stability of the rotating shafts 10.

[0031] An anti-slip layer 23 is fixedly connected inside the fixed base 17 to increase friction.

[0032] It should be further explained that the motor 19 in this embodiment is a conventional device known to those skilled in the art and available on the market. The model can be selected or customized according to actual needs. In this patent, we only use it and have not improved its structure and function. For those skilled in the art, the setting method, installation method and electrical connection method can be adjusted and operated in accordance with the requirements of its instruction manual. Therefore, they will not be described in detail here. The motor 19 is equipped with a matching control switch. The installation position of the control switch can be selected according to the actual use requirements to facilitate the operation and control by the operator.

[0033] In summary, the working principle and process of this optical fiber preform pickling equipment are as follows: First, place the equipment at the desired location and connect the motor 19 to the forward and reverse circuits according to the instruction manual. Then, when it is necessary to replace the fixing seat 17, use the pull ring 21 to pull the pull rod 14 and the limiting block 15. The limiting block 15 will compress the spring. After the limiting block 15 moves out of the limiting ring 16, the fixing seat 17 and the limiting ring 16 can be removed for replacement. This is suitable for placing optical fiber preforms of different specifications. After replacing the fixing seat 17, place the optical fiber preform inside the fixing seat 17, close the sealing door 4, and start the pickling mechanism 1 and the motor 19. The motor 19 drives the power shaft 6 and the turntable to rotate through gears 18 and 3. At this time, the turntable will also drive gear 12 and the rotating shaft 10. The fixed seat 17 rotates, and because gear 12 meshes with the gear ring 8, gear 12 drives the rotating shaft 10, fixed seat 17 and optical fiber preform to rotate. This further improves the pickling effect on the optical fiber preform during pickling by the pickling mechanism 1, thus improving practicality. The pickling mechanism 1 involved in this solution is the authorized technology disclosed in the utility model patent with Chinese Patent Publication (Announcement) No. CN210796220U. Its internal structure and working principle are well known to those skilled in the art and are not the innovation of this patent. The innovation of this patent lies in driving each optical fiber preform to rotate individually when multiple optical fiber preforms rotate, thereby improving the pickling effect and making it suitable for installing optical fiber preforms of different specifications. Therefore, this patent will not elaborate on its internal structure and working principle.

[0034] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An optical fiber preform pickling device, comprising a pickling mechanism (1), characterized in that, Also includes: Base (2); Pickling tank (3), the pickling mechanism (1) is installed on the base (2) and the pickling tank (3), and a sealed door (4) is rotatably connected to the pickling tank (3). The placement mechanism is set inside the pickling tank (3). The placement mechanism includes a partition (5), which is fixedly connected inside the pickling tank (3). A power shaft (6) is rotatably connected through the partition (5). One end of the power shaft (6) is rotatably connected to the pickling tank (3). A fixing ring (7) is fixedly connected to the partition (5). A toothed ring (8) is fixedly connected inside the fixing ring (7). A disc (9) is fixedly connected to the power shaft (6). Multiple rotating shafts (10) are rotatably connected through the disc (9). A fixed connection is made to the rotating shaft (10). The device has an installation groove (11) and a gear (12). Multiple gears (12) mesh with a gear ring (8). A fixing frame (13) is fixedly connected to the installation groove (11). A pull rod (14) is slidably connected through the fixing frame (13). A limit block (15) is fixedly connected to the pull rod (14). A spring is sleeved on the pull rod (14). A limit ring (16) is placed in the installation groove (11). The limit block (15) penetrates the installation groove (11) and is located inside the limit ring (16). A fixing seat (17) is fixedly connected to the limit ring (16). The power mechanism is mounted on the pickling tank (3) and the power shaft (6) to provide power.

2. The optical fiber preform pickling equipment according to claim 1, characterized in that: The power mechanism includes a second gear (18) and a motor (19). The second gear (18) is fixedly mounted on the power shaft (6). The motor (19) is installed inside the pickling tank (3). The output end of the motor (19) is fixedly mounted with a third gear. The second gear (18) meshes with the third gear.

3. The optical fiber preform pickling equipment according to claim 2, characterized in that: The pickling tank (3) is provided with a maintenance port, and a maintenance plate (20) is fixedly connected inside the maintenance port.

4. The optical fiber preform pickling equipment according to claim 3, characterized in that: A pull ring (21) is fixedly connected to the pull rod (14).

5. The optical fiber preform pickling equipment according to claim 4, characterized in that: A stabilizing disk (22) is fixedly sleeved on the power shaft (6), and multiple rotating shafts (10) are rotatably connected to the stabilizing disk (22).

6. The optical fiber preform pickling equipment according to claim 5, characterized in that: An anti-slip layer (23) is fixedly connected inside the fixed base (17).

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