Optical fiber preform adjusting structure

By designing an optical fiber preform adjustment structure and using a bracket assembly and a cylinder to adjust the position of the preform, the problem of the core layer deviating from the center is solved, and the production efficiency and performance of the optical fiber are improved.

CN223397649UActive Publication Date: 2025-09-30JIANGSU WELLED OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202422667967.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-09-30
Estimated Expiration
2034-11-04

AI Technical Summary

Technical Problem

During the drawing process of the optical fiber preform, the core layer may deviate from the center position, causing the optical signal transmission to not meet the design requirements, increasing optical loss and affecting the transmission performance of the optical fiber.

Method used

An optical fiber preform adjustment structure is designed, which includes a bracket assembly and an adjustment assembly. The vertical position and clamping of the preform are adjusted by the first cylinder and the second cylinder. Combined with the shape adaptation of the clamping jaws, the stability and position accuracy of the preform during movement are ensured.

Benefits of technology

Through the cooperation of the bracket assembly and the adjustment assembly, the stable clamping and position adjustment of the preform rod are achieved, ensuring that the core layer is located in the center position during the processing, thereby improving the production efficiency and performance of the optical fiber.

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Abstract

The utility model is suitable for the technical field of optical fiber preforms, and provides an optical fiber preform adjusting structure which comprises a support assembly, an adjusting assembly is arranged on one side of the support assembly, a preform is arranged in the middle of the adjusting assembly, the support assembly comprises a supporting plate, a top plate is arranged above the supporting plate, and the top plate is arranged on the top plate. Two sets of supporting columns are arranged below the top plate and fixedly connected with the top plate, the bottoms of the two sets of supporting columns are each provided with a set of supporting bases, the adjusting assembly comprises two sets of first air cylinders, the first air cylinders are arranged at the top of the top plate, and the two sets of supporting columns are each provided with a set of second air cylinders. A group of first sliding blocks are respectively arranged below the output ends of the two groups of first cylinders, the first cylinders and the second cylinders are arranged, the first cylinders are used for adjusting the positions of the preforms in the vertical direction, and the second cylinders are used for clamping the preforms, so that the purpose of adjusting the positions of the preforms is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber preform rods, and more specifically, to an optical fiber preform rod adjustment structure. Background Art

[0002] Optical fiber preform is the core raw material for manufacturing quartz series optical fibers. It is a glass rod with a specific refractive index distribution. The quality and performance of the preform largely determine the quality of the final optical fiber, such as the loss, strength, and bandwidth of the optical fiber.

[0003] At present, the optical fiber drawing process uses preform rods as raw materials, softens them by high-temperature heating, and then, under the action of gravity or external tension, the softened part of the material is drawn into filaments, which are optical fibers.

[0004] However, the optical fiber preform consists of a core layer and a cladding layer. The core layer is the main channel for optical signal transmission. During the drawing process, if the position of the preform is not adjusted properly, the core layer may deviate from the center position, which will cause the refractive index distribution of the optical fiber to not meet the design requirements. As a result, the optical signal cannot be well confined in the core layer during transmission, thereby increasing light loss and seriously affecting the transmission performance of the optical fiber. An optical fiber preform adjustment structure is now proposed to improve the existing problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present invention aims to provide an optical fiber preform adjustment structure.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An optical fiber preform rod adjustment structure comprises a bracket assembly, an adjustment assembly is arranged on one side of the bracket assembly, and a preform rod is arranged in the middle position of the adjustment assembly.

[0008] Among them, the bracket assembly includes a support plate, a top plate is arranged above the support plate, two groups of support columns are arranged below the top plate, the support columns are fixedly connected to the top plate, and a group of support seats are respectively arranged at the bottom of the two groups of support columns, and the support columns are respectively fixedly connected to the support seats.

[0009] The adjustment assembly includes two groups of first cylinders, which are arranged on the top of the top plate and are used to adjust the vertical position of the preform rods. A group of second cylinders are respectively arranged on the two groups of support columns, and the second cylinders are used to clamp the preform rods.

[0010] By adopting the above technical solution, the bracket assembly provides stable support for the device, ensuring the normal progress of the adjustment work. An adjustment assembly is provided on one side of the bracket assembly, and a preform rod is provided in the middle position of the adjustment assembly. The adjustment assembly is used to clamp and adjust the position of the preform rod. The first cylinder is used to adjust the vertical position of the preform rod, and the second cylinder is used to clamp the preform rod.

[0011] The present invention is further configured as follows: the output ends of the two groups of the first cylinders respectively pass through the top plate, and a group of first sliding blocks are respectively provided below the output ends of the two groups of the first cylinders.

[0012] The present invention is further configured as follows: one side of the two groups of the first sliders is respectively connected with a group of clamps, the opening directions of the two groups of clamps are arranged facing each other, the preform rod is arranged in the middle position of the two groups of clamps, and the shape of the preform rod is adapted to the shape of the two groups of clamps.

[0013] By adopting the above technical solution, the shape of the preform rod is adapted to the shape of the two sets of clamps, and the clamps have a larger range for clamping the preform rod, which is convenient for maintaining the stability of the preform rod and ensuring that the preform rod is not prone to shaking during the movement and adjustment process.

[0014] The present invention is further configured as follows: the output end of the second cylinder passes through the support column, and the output ends of two groups of the second cylinders are respectively connected to a group of bottom plates.

[0015] The utility model is further configured as follows: a second slide rail is connected to one side of the base plate, the first slider is arranged on a side of the second slide rail away from the base plate, and the first slider slides relative to the second slide rail.

[0016] The present invention is further configured as follows: a first slide rail is provided on the other side of the base plate in a sliding connection, and the first slide rail is fixedly connected to the support plate.

[0017] By adopting the above technical solution, when the first cylinder is started, the output end of the first cylinder contacts the first slider, and the first cylinder pushes the first slider to move vertically downward along the second slide rail, so as to facilitate adjustment of the vertical position of the preform rod clamped between the clamps. According to the actual needs of optical fiber preparation, the position of the preform rod is adjusted to make the preform rod more in line with the preparation needs, thereby improving the optical fiber production efficiency; when the second cylinder is started, the second cylinder drives the bottom plate to move along the first slide rail. At this time, the first slider also moves with the bottom plate, and the two groups of bottom plates move toward each other, so that the two groups of clamps stably clamp the preform rod, keep the preform rod stable and not easy to shake, and ensure that the core layer of the preform rod is in the center position of the processing location, so that the drawing work can proceed normally, and the prepared optical fiber can achieve the required performance.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. By setting the support assembly and the adjustment assembly, the support assembly provides stable support for the device to ensure the normal adjustment work. The adjustment assembly is used to clamp and adjust the position of the preform rod.

[0020] 2. By setting the first cylinder and the second cylinder, the two groups of first cylinders are used to adjust the vertical position of the preform rods, and the two groups of second cylinders are used to clamp the preform rods, thereby achieving the purpose of adjusting the position of the preform rods.

[0021] 3. By setting the clamping jaws, the shape of the preform rod is adapted to the shape of the two sets of clamping jaws. The clamping jaws have a larger range for clamping the preform rod, which is convenient for maintaining the stability of the preform rod and ensuring that the preform rod is not prone to shaking during the movement and adjustment process, thereby achieving the purpose of stably clamping the preform rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of an optical fiber preform adjustment structure in the present utility model.

[0023] Figure 2 Practical Figure 1 Isometric view of a .

[0024] Figure 3 Practical Figure 1 Front view of .

[0025] Figure 4 Practical Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0026] Description of reference numerals: 1, bracket assembly; 11, support plate; 12, top plate; 14, first slide rail; 15, support base; 16, support column;

[0027] 2. Adjustment assembly; 21. First cylinder; 22. Second cylinder; 23. First slide; 24. Bottom plate; 25. Second slide rail; 26. Clamping jaw;

[0028] 3. Preform rods. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] For example 1, please refer to Figure 1-4 , the utility model provides the following technical solutions:

[0032] See Figure 1 An optical fiber preform rod adjustment structure includes a bracket assembly 1, which provides stable support for the device to ensure the normal progress of the adjustment work. An adjustment assembly 2 is provided on one side of the bracket assembly 1, and a preform rod 3 is provided in the middle position of the adjustment assembly 2. The adjustment assembly 2 is used to clamp and adjust the position of the preform rod 3.

[0033] See Figure 1 and Figure 2 The bracket assembly 1 includes a support plate 11, a top plate 12 is provided above the support plate 11, two groups of support columns 16 are provided below the top plate 12, the support columns 16 are fixedly connected to the top plate 12, and a group of support seats 15 are respectively provided at the bottom of the two groups of support columns 16, and the support columns 16 are respectively fixedly connected to the support seats 15.

[0034] See Figure 2 and Figure 3 The adjustment assembly 2 includes two groups of first cylinders 21. The first cylinders 21 are arranged on the top of the top plate 12. The first cylinders 21 are used to adjust the vertical position of the preform rod 3. A group of second cylinders 22 are respectively provided on the two groups of support columns 16. The second cylinders 22 are used to clamp the preform rod 3.

[0035] See Figure 2 and Figure 3 The output ends of the two groups of first cylinders 21 respectively pass through the top plate 12, and a group of first sliders 23 are respectively provided below the output ends of the two groups of first cylinders 21.

[0036] See Figure 2 and Figure 4 A group of clamping jaws 26 is connected to one side of each of the two groups of first sliders 23. The opening directions of the two groups of clamping jaws 26 are set facing each other. The preform rod 3 is set in the middle position of the two groups of clamping jaws 26. The shape of the preform rod 3 is adapted to the shape of the two groups of clamping jaws 26. The clamping jaws 26 have a large clamping range for the preform rod 3, which is convenient for maintaining the stability of the preform rod 3 and ensuring that the preform rod 3 is not prone to shaking during the movement and adjustment process.

[0037] See Figure 2 and Figure 3 The output end of the second cylinder 22 passes through the support column 16 , and the output ends of the two groups of second cylinders 22 are respectively connected to a group of bottom plates 24 .

[0038] See Figure 2 and Figure 3A second slide rail 25 is connected to one side of the bottom plate 24, and the first slider 23 is arranged on the side of the second slide rail 25 away from the bottom plate 24, and the first slider 23 slides relative to the second slide rail 25. When the first cylinder 21 is started, the output end of the first cylinder 21 contacts the first slider 23, and the first cylinder 21 pushes the first slider 23 to move vertically downward along the second slide rail 25, so as to facilitate the adjustment of the vertical position of the preform rod 3 clamped by the clamping jaws 26. According to the actual requirements of optical fiber preparation, the position of the preform rod 3 is adjusted to make the preform rod 3 more in line with the preparation requirements and improve the optical fiber production efficiency.

[0039] See Figure 2 and Figure 3 , the other side of the bottom plate 24 is slidably connected with a first slide rail 14, and the first slide rail 14 is fixedly connected to the support plate 11. When the second cylinder 22 is started, the second cylinder 22 drives the bottom plate 24 to move along the first slide rail 14. At this time, the first slider 23 will also move with the bottom plate 24. The two groups of bottom plates 24 move toward each other, and the two groups of clamps 26 stably clamp the preform rod 3, keeping the preform rod 3 stable and not easy to shake, ensuring that the core layer of the preform rod 3 is in the center position of the processing, so that the drawing work can proceed normally, and the prepared optical fiber can achieve the required performance.

[0040] Specifically, the preform rod 3 is first placed in the middle position of the two groups of clamps 26, and then the two groups of second cylinders 22 are activated. The two groups of second cylinders 22 respectively drive the two groups of clamps 26 to move toward each other, further clamping and stabilizing the preform rod 3. Finally, the first cylinder 21 is activated, and the output end of the first cylinder 21 vertically downward contacts the first slider 23. The first cylinder 21 pushes the first slider 23 downward, and finally determines the position of the preform rod 3.

[0041] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. An optical fiber preform adjustment structure, characterized by: It comprises a support assembly (1), an adjustment assembly (2) is provided on one side of the support assembly (1), and a preform rod (3) is provided in the middle of the adjustment assembly (2); The bracket assembly (1) comprises a support plate (11), a top plate (12) is provided above the support plate (11), two groups of support columns (16) are provided below the top plate (12), the support columns (16) are fixedly connected to the top plate (12), and a group of support seats (15) are respectively provided at the bottom of the two groups of support columns (16), and the support columns (16) are respectively fixedly connected to the support seats (15); The adjustment assembly (2) comprises two groups of first cylinders (21), wherein the first cylinders (21) are arranged on the top of the top plate (12), and the first cylinders (21) are used to adjust the vertical position of the preform rod (3); and a group of second cylinders (22) are respectively arranged on the two groups of support columns (16), and the second cylinders (22) are used to clamp the preform rod (3).

2. The optical fiber preform adjustment structure according to claim 1, characterized in that: The output ends of the two groups of the first cylinders (21) respectively pass through the top plate (12), and a group of first sliding blocks (23) is respectively provided below the output ends of the two groups of the first cylinders (21).

3. The optical fiber preform adjustment structure according to claim 2, characterized in that: One side of the two groups of first sliders (23) is respectively connected with a group of clamping jaws (26), the opening directions of the two groups of clamping jaws (26) are arranged facing each other, the preform rod (3) is arranged in the middle position of the two groups of clamping jaws (26), and the shape of the preform rod (3) is adapted to the shape of the two groups of clamping jaws (26).

4. The optical fiber preform adjustment structure according to claim 3, characterized in that: The output end of the second cylinder (22) passes through the support column (16), and the output ends of the two groups of the second cylinders (22) are respectively connected to a group of bottom plates (24).

5. The optical fiber preform adjustment structure according to claim 4, characterized in that: A second slide rail (25) is connected to one side of the bottom plate (24), the first slider (23) is arranged on a side of the second slide rail (25) away from the bottom plate (24), and the first slider (23) slides relative to the second slide rail (25).

6. The optical fiber preform adjustment structure according to claim 5, characterized in that: A first slide rail (14) is slidably connected to the other side of the bottom plate (24), and the first slide rail (14) is fixedly connected to the support plate (11).