A technique for drawing and tapering PMMA plastic optical fibers using ceramic heating
By combining a ceramic heating head and a stepper motor sliding module, the problem of uneven diameter in PMMA plastic optical fiber during the tapering process was solved, achieving precise control of the tapering process and ensuring the consistency of optical fiber diameter and length.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN YOUSHI OPHTHALMOLOGY TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-29
AI Technical Summary
Existing technologies cannot effectively utilize fused silica fiber taper technology to taper PMMA plastic optical fibers, resulting in uneven diameter of the plastic optical fibers during the stretching process, which affects the light guiding performance.
By combining a ceramic heating head and a stepper motor sliding module, the tapering process of PMMA plastic optical fiber is achieved through precise control of temperature and motion parameters, ensuring temperature uniformity and diameter consistency.
It has been achieved that plastic optical fibers can be drawn to the target size while ensuring optical performance, and tapered optical fibers of different diameters and lengths can be customized, thus solving the problem of uneven diameter of plastic optical fibers during the stretching process.
Smart Images
Figure CN224296570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PMMA plastic optical fiber processing technology, and more specifically, to a tapering technique for PMMA plastic optical fiber using ceramic heating. Background Technology
[0002] PMMA plastic optical fiber, with its unique physical properties, is widely used in various fields. However, the processing technology of plastic optical fiber has been rarely studied, especially the tapering technology of plastic optical fiber. Similar to the fused bipolar tapering technology of quartz optical fiber, the plastic optical fiber is softened by heating and axial tension is applied to draw it thinner and longer, thereby reducing the outer diameter of the plastic optical fiber. However, because the melting temperature of plastic optical fiber is low, it is sensitive to temperature. Too high or too low temperatures are not conducive to tapering. Moreover, plastic optical fiber is easily deformed under tension. During the stretching process, it is difficult to maintain the uniformity of the diameter. In addition, the temperature consistency requirement is high. During the tapering process, the temperature difference between various points in the hot zone is too large, which can easily lead to the uneven diameter of the tapered area of the plastic optical fiber, thus losing its light guiding performance. Therefore, it is impossible to use the mature fused bipolar tapering technology of quartz optical fiber to complete the tapering of plastic optical fiber. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a tapering technique for PMMA plastic optical fiber by heating with ceramic, so as to solve the problem that the prior art is unable to use the fused taper technique for quartz optical fiber due to the influence of the plastic optical fiber material.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a tapering technique for PMMA plastic optical fibers using ceramic heating, comprising...
[0005] Prefabricated tooling base;
[0006] A first stepper motor sliding module is fixedly installed on the top surface of a prefabricated tooling base, and a first module sliding platform is provided on the outside of the first stepper motor sliding module.
[0007] The second stepper motor sliding module is fixedly connected to the surface of the first module sliding platform, and the second module sliding platform is provided on the top of the second stepper motor sliding module;
[0008] The third stepper motor sliding module is fixedly installed on the top surface of the prefabricated tooling base. The third stepper motor sliding module and the second stepper motor sliding module are kept horizontal. A third module fixing platform is fixedly installed on one side of the top of the third stepper motor sliding module. A third module sliding platform is provided on the side of the top of the third stepper motor sliding module opposite to the third module fixing platform.
[0009] The D-shaped ceramic heating head is disposed on the surface of the sliding platform of the second module;
[0010] The clamping base consists of two clamping bases, which are respectively fixedly installed on the top of the No. 3 module fixing platform and the No. 3 module sliding platform. Each clamping base has a limit groove on its top surface and a mounting seat is fixedly installed on one side of the top of each clamping base. A connecting shaft is rotatably installed inside the mounting seat, and a pressure block is fixedly connected to the surface of the connecting shaft. A plastic optical fiber is placed inside the limit groove.
[0011] The temperature of the D-shaped ceramic heating head is set to 233°C.
[0012] The running distance of the sliding module of the first stepper motor is 21.81 mm.
[0013] The operating speed of the second stepper motor sliding module is 16.66 mm / s, and the operating distance of the second stepper motor sliding module is 100 mm.
[0014] The running speed of the sliding module of the third stepper motor is 10.67 mm / s, and the running distance of the sliding module of the third stepper motor is 64 mm.
[0015] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0016] In the above scheme, during tapering, the sliding platform of module one on the surface of the sliding module one of the stepper motors moves upward to a designated position, thereby driving the sliding module two of the stepper motors to move synchronously to the designated height position of the D-shaped ceramic heating head on the surface of the sliding platform two of the stepper motors. Then, the sliding module two of the stepper motors starts to run, heating the plastic optical fiber placed on the top surface of the holder base through the D-shaped ceramic heating head. At the same time, the sliding module three of the stepper motors starts to run, driving the sliding platform three of the stepper motors to move horizontally to draw the optical fiber thinner and longer. Therefore, tapering of plastic optical fiber using a fixed material is realized. It can draw the optical fiber to the target size while ensuring the optical performance of the optical fiber. Furthermore, by adjusting the corresponding parameters according to the original diameter of the plastic tapered fiber, tapered optical fibers of different diameters and lengths can be customized. Attached Figure Description
[0017] Figure 1 This is a three-dimensional assembly drawing of the overall device of this utility model;
[0018] Figure 2 This is a front view of the overall device of this utility model;
[0019] Figure 3This is a top view of the overall device of this utility model;
[0020] Figure 4 This is a schematic diagram of the clamping base and pressure block of this utility model.
[0021] [Figure Labels]
[0022] 1. Prefabricated tooling base; 2. Stepper motor sliding module 1; 3. Module 1 sliding platform; 4. Stepper motor sliding module 2; 5. Module 2 sliding platform; 6. Stepper motor sliding module 3; 7. Module 3 fixing platform; 8. Module 3 sliding platform; 9. D-shaped ceramic heating head; 10. Clamping base; 11. Limiting groove; 12. Mounting base; 13. Connecting shaft; 14. Pressure block; 15. Plastic optical fiber. Detailed Implementation
[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0024] As attached Figure 1 To be continued Figure 4 Embodiments of this utility model provide a tapering technique for PMMA plastic optical fibers using ceramic heating, including...
[0025] Prefabricated tooling base 1;
[0026] Stepper motor sliding module 2 is fixedly installed on the top surface of prefabricated tooling base 1, and a sliding platform 3 of module 1 is provided on the outside of stepper motor sliding module 2.
[0027] Stepper motor sliding module 4 is fixedly connected to the surface of module 1 sliding platform 3, and module 2 sliding platform 5 is provided on the top of stepper motor sliding module 4.
[0028] The third stepper motor sliding module 6 is fixedly installed on the top surface of the prefabricated tooling base 1. The third stepper motor sliding module 6 and the second stepper motor sliding module 4 are kept horizontal. The third module fixing platform 7 is fixedly installed on one side of the top of the third stepper motor sliding module 6. The third module sliding platform 8 is provided on the side of the top of the third stepper motor sliding module 6 opposite to the third module fixing platform 7.
[0029] Stepper motor sliding module 2, stepper motor sliding module 4, and stepper motor sliding module 6 are all connected to the EasyControl microcomputer control system and are controlled by the program in the system. Stepper motor sliding module 2 and stepper motor sliding module 4 work together to enable the D-shaped ceramic heating head 9 to move horizontally at a constant speed at different heights on the plane.
[0030] D-shaped ceramic heating head 9, D-shaped ceramic heating head 9 is set on the surface of the sliding platform 5 of module 2;
[0031] Two clamping bases 10 are provided, each fixedly mounted on the top of the third module fixing platform 7 and the third module sliding platform 8. Each clamping base 10 has a limiting groove 11 on its top surface. A mounting seat 12 is fixedly mounted on one side of the top of each clamping base 10. A connecting shaft 13 is rotatably mounted inside the mounting seat 12. A pressure block 14 is fixedly connected to the surface of the connecting shaft 13. A plastic optical fiber 15 is placed inside the limiting groove 11 and fixed within it. The pressure block 14 rotates along the connecting shaft 13, pressing the plastic optical fiber 15 into the fiber optic clamp. Circular magnets are installed on the pressure block 14 and the clamping base 10 to provide sufficient pressure. Anti-slip adhesive layers are applied to the contact areas between the pressure block 14, the clamping base 10, and the plastic optical fiber 15 to prevent slippage during the tapering process.
[0032] The temperature of the D-shaped ceramic heating head 9 is set to 233℃.
[0033] The running distance of the sliding module 2 of the first stepper motor is 21.81mm.
[0034] The running speed of the second stepper motor sliding module 4 is 16.66 mm / s, and the running distance of the second stepper motor sliding module 4 is 100 mm.
[0035] The running speed of the sliding module 6 of the third stepper motor is 10.67 mm / s, and the running distance of the sliding module 6 of the third stepper motor is 64 mm.
[0036] The working process of this utility model is as follows: During tapering, the sliding platform 3 of the first module 2, which is set on the surface of the first stepper motor sliding module 2, moves upward to the designated position, thereby driving the second stepper motor sliding module 4 to move synchronously, so as to move the D-shaped ceramic heating head 9 set on the surface of the second module sliding platform 5 to the designated height position. Then the second stepper motor sliding module 4 starts to run, and heats the plastic optical fiber 15 placed on the top surface of the clamp base 10 through the D-shaped ceramic heating head 9. At the same time, the third stepper motor sliding module 6 starts to run, driving the third module sliding platform 8 to move horizontally, so as to draw the optical fiber thinner and longer.
[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0038] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0039] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tapering technique for PMMA plastic optical fibers using ceramic heating, characterized in that, include Prefabricated tooling base (1); Stepper motor sliding module (2) is fixedly installed on the top surface of prefabricated tooling base (1), and a sliding platform (3) of module (2) is provided on the outside of stepper motor sliding module (2). The second stepper motor sliding module (4) is fixedly connected to the surface of the first module sliding platform (3), and the top of the second stepper motor sliding module (4) is provided with the second module sliding platform (5). The third stepper motor sliding module (6) is fixedly installed on the top surface of the prefabricated tooling base (1). The third stepper motor sliding module (6) and the second stepper motor sliding module (4) are kept horizontal. A third module fixing platform (7) is fixedly installed on one side of the top of the third stepper motor sliding module (6). A third module sliding platform (8) is provided on the side of the top of the third stepper motor sliding module (6) opposite to the third module fixing platform (7). D-shaped ceramic heating head (9), the D-shaped ceramic heating head (9) is disposed on the surface of the sliding platform (5) of module 2; The clamp base (10) has two clamp bases. The two clamp bases (10) are fixedly installed on the top of the No. 3 module fixing platform (7) and the No. 3 module sliding platform (8), respectively. The top surface of the two clamp bases (10) is provided with a limit groove (11). The top side of the two clamp bases (10) is fixedly installed with a mounting seat (12). The mounting seat (12) is rotatably installed with a connecting shaft (13). The surface of the connecting shaft (13) is fixedly connected with a pressure block (14). The limit groove (11) contains a plastic optical fiber (15).
2. The tapering technique for PMMA plastic optical fiber using ceramic heating according to claim 1, characterized in that, The temperature of the D-shaped ceramic heating head (9) is set to 233°C.
3. The tapering technique for PMMA plastic optical fiber using ceramic heating according to claim 1, characterized in that, The running distance of the sliding module (2) of the first stepper motor is 21.81 mm.
4. The tapering technique for PMMA plastic optical fiber using ceramic heating according to claim 1, characterized in that, The running speed of the second stepper motor sliding module (4) is 16.66 mm / s, and the running distance of the second stepper motor sliding module (4) is 100 mm.
5. The tapering technique for PMMA plastic optical fiber using ceramic heating according to claim 1, characterized in that, The running speed of the sliding module (6) of the third stepper motor is 10.67 mm / s, and the running distance of the sliding module (6) of the third stepper motor is 64 mm.