Device and method for manufacturing optical fiber cable

Abstract

The invention relates to a manufacturing device and a manufacturing method of an optical fiber cable, and relates to the technical field of optical fiber manufacturing, and the manufacturing device comprises a spinning part, a direction conversion assembly, a coating part, a measuring part and a control part. The direction conversion assembly is arranged between the spinning part and the coating part, the internal guide groove is provided with the fluid outlet and is connected with the gas supply system, the gas supply system provides fluid to enable the bare optical fiber to float in the guide groove, and when the bare optical fiber passes through the direction conversion assembly, the gas supply system sprays gas into the guide groove, so that the bare optical fiber is coated with the coating. By adjusting the position of the non-contact guide piece and changing the length of an optical fiber winding path, cooling is achieved in a limited space, long-distance cooling of a traditional linear path is replaced, the problem that in the prior art, the height of equipment is increased due to insufficient cooling distance is avoided, a high plant does not need to be newly built or equipment does not need to be transformed, and cost is reduced. And the production site space requirement and the equipment investment cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical fiber manufacturing, and in particular to an optical fiber manufacturing device and method. BACKGROUND

[0002] In the context of rapid development of modern communication and sensing technologies, the demand for optical fiber lines as key carriers for information transmission is showing an explosive growth trend. From the large-scale laying of 5G communication networks to the widespread application of intelligent sensing systems in industries, medical care, and Internet of Things, high-quality and high-performance optical fiber lines have become the core elements driving the development of various industries. However, traditional optical fiber manufacturing technology has obvious drawbacks in many aspects, which seriously restricts the production efficiency and product quality improvement of optical fiber lines. In the optical fiber preform melting and spinning stage, the optical fiber bare wire needs a long enough cooling distance to ensure its physical properties stable, which makes the overall height of the manufacturing device have to be continuously increased. Increasing the equipment height not only involves high equipment purchase and installation costs, but also puts strict requirements on the space conditions of the production site. More troublesome is that if the production efficiency is to be further improved, the difficulty and cost of equipment modification will increase exponentially, greatly limiting the expansion of production scale and the improvement of economic benefits of enterprises; when entering the optical fiber bare wire coating processing link, precise and stable control of the outer diameter of the covering layer (coating diameter) has always been a difficult problem to be solved in the industry. Although the existing technology tries to adjust the direction of the optical fiber bare wire by using a direction changer and uses gas for temperature regulation, it is difficult to accurately control the amount of gas passing through the direction changer in actual operation, resulting in unstable temperature regulation of the optical fiber bare wire. In summary, the existing optical fiber manufacturing technology faces severe challenges in production efficiency, product quality, and other aspects, and it is urgent to develop an optical fiber manufacturing device and method to break through these technical bottlenecks and meet the growing market demand for optical fiber lines. SUMMARY

[0003] 1. Technical problems solved The purpose of the present application is to provide an optical fiber manufacturing device and method to solve the problems in the background art.

[0004] The manufacturing device of the optical fiber line provided by the application adopts the following technical scheme; including a spinning part, a direction conversion assembly, a coating part, a measuring part and a control part, the spinning part is used for melt spinning of an optical fiber base material to form an optical fiber bare wire; the direction conversion assembly is arranged at any position from the spinning part to the coating part, has a guide groove for guiding the optical fiber bare wire, and a fluid discharge port for making the optical fiber bare wire along the guide groove float is formed in the guide groove, and is used for converting the direction of the optical fiber bare wire; the coating part is arranged with a covering layer composed of resin on the outer periphery of the optical fiber bare wire; the measuring part is used for measuring the outer diameter of the covering layer, the line speed of the optical fiber wire or the temperature of the optical fiber bare wire; the control part controls the position of the direction conversion assembly according to the measured value of the measuring part, and adjusts the length of the optical fiber bare wire from the spinning part to the coating part; By adopting the above technical scheme, the direction conversion assembly is arranged between the spinning part and the coating part, the internal guide groove has a fluid discharge port connected with a gas supply system, the gas supply system provides fluid to make the optical fiber bare wire float in the guide groove, when the optical fiber bare wire passes through the direction conversion assembly, the gas supply system sprays gas into the guide groove to form an air cushion to support the optical fiber to float, by adjusting the position of the non-contact guide part, the length of the optical fiber winding path is changed, cooling is realized in a limited space, the long distance cooling of the traditional straight path is replaced, the problem of increasing equipment height due to insufficient cooling distance in the traditional technology is avoided, new high factory buildings or equipment modification is not needed, and the production site space requirement and equipment investment cost are greatly reduced; the measuring part monitors the outer diameter of the covering layer, the line speed of the optical fiber and the temperature of the bare wire in real time, the control part adjusts the position of the direction conversion assembly after receiving the data, when the measuring part detects temperature abnormity, the control part instructs the direction conversion assembly to adjust the optical fiber winding length (such as increasing the winding length to prolong the cooling time), and at the same time, the gas supply system synchronously adjusts the gas flow, a temperature closed loop control is formed, the temperature of the optical fiber bare wire is stabilized, the uniformity of the coating outer diameter is ensured, the temperature fluctuation problem caused by inaccurate gas amount control in the traditional technology is solved, the deviation of the coating outer diameter caused by temperature change is avoided, and the stability of the coating quality is improved.

[0005] Preferably, the direction conversion assembly includes a plurality of non-contact guide parts, each non-contact guide part has a guide part capable of winding a part of the optical fiber bare wire along the outer periphery, a blowout port for blowing gas to make the optical fiber bare wire float is arranged in the guide part, by adjusting the position of at least one non-contact guide part in the plurality of non-contact guide parts, the winding length of the optical fiber bare wire relative to the plurality of non-contact guide parts is increased or decreased, and the cooling capacity of the optical fiber bare wire is controlled. By adopting the above technical scheme, the gas blowout port forms an air cushion to support the optical fiber to float, and contact damage is avoided; the adjustable winding length realizes dynamic control of the cooling capacity, and the cooling demand of optical fibers with different materials is adapted.

[0006] Preferably, the measuring unit further comprises a detection unit for measuring the special structure inside the optical fiber bare wire, the detection unit performs real-time monitoring on the optical fiber bare wire based on image recognition technology, and the control unit adjusts the process parameters related to the formation of the special structure in the manufacturing process according to the measurement result of the detection unit. By using the above technical solution, the special structure is directly visualized and monitored, and the gas pressure and other parameters are adjusted in real time, so as to ensure the size accuracy of the hole structure and meet the high-end optical fiber manufacturing requirements.

[0007] Preferably, the gas supply system is connected with the fluid discharge port of the direction conversion assembly, and is used to provide fluid with stable pressure and flow rate, and the gas supply system has pressure adjustment and flow rate monitoring functions, and can adjust the pressure and flow rate of the output fluid according to the instruction of the control unit. By using the above technical solution, the fluid is stably supplied and the pressure and flow rate are dynamically adjusted, and the bare wire cooling temperature is accurately controlled by cooperating with the direction conversion assembly, so as to improve the coating outer diameter consistency.

[0008] Preferably, the spinning part comprises a heating furnace and a wire drawing mechanism, the heating furnace is used to heat the optical fiber master material to a molten state, the wire drawing mechanism cooperates with the heating furnace to draw the molten optical fiber master material into an optical fiber bare wire, and the heating furnace has an accurate temperature control system, which can accurately adjust the heating temperature according to the material quality and process requirements of the optical fiber master material. By using the above technical solution, the melting temperature is accurately adjusted according to the material quality of the master material, and the stable drawing speed is cooperated with the wire drawing mechanism, so as to ensure the uniform diameter of the optical fiber bare wire and provide a high-quality substrate for the coating.

[0009] Preferably, the coating part comprises a resin storage tank, a coating nozzle and a curing device, the resin storage tank is used to store liquid resin, the coating nozzle uniformly coats the resin on the outer periphery of the optical fiber bare wire, and the curing device performs curing treatment on the coated resin, and the coating flow rate of the coating nozzle and the curing parameters of the curing device can be adjusted by the control unit according to the feedback of the measuring unit. By using the above technical solution, the resin flow rate and curing parameters are automatically adjusted, so as to ensure the uniform thickness of the covering layer, sufficient curing, and improve the mechanical protection performance and weather resistance of the optical fiber wire.

[0010] The application relates to a manufacturing method of an optical fiber wire. The spinning process comprises the following steps: melting and spinning the optical fiber master material in the spinning part to form an optical fiber bare wire. The direction conversion process comprises the following steps: converting the direction of the optical fiber bare wire by using the guide groove and the fluid discharge port of the direction conversion assembly at any position between the position where the spinning process is performed and the position where the coating process is performed. The coating process comprises the following steps: arranging a covering layer composed of resin on the outer periphery of the optical fiber bare wire in the coating part. Measurement and adjustment process: The outer diameter of the coating layer, the linear velocity of the optical fiber, or the temperature of the bare optical fiber are measured by the measuring unit. The control unit controls the position of the direction conversion component based on the measured values ​​and adjusts the length of the bare optical fiber from the spinning section to the coating section.

[0011] Preferably, it also includes a monitoring and control process for the special structure inside the bare optical fiber. In the monitoring and control process, the bare optical fiber is photographed by an image acquisition device, the aperture is determined based on image analysis, and the process parameters related to the formation of the special structure are adjusted in real time according to the measurement results to ensure the dimensional accuracy and stability of the special structure. By adopting the above technical solutions, real-time monitoring and dynamic adjustment ensure the dimensional accuracy of special structures, expanding the application scenarios of optical fibers in high-precision fields such as sensing and medical care.

[0012] 2. Beneficial effects In summary, this application includes at least one of the following beneficial technical effects: 1. This invention provides an apparatus and method for manufacturing optical fibers. A direction conversion component is positioned between the spinning section and the coating section. An internal guide groove has a fluid outlet connected to a gas supply system. The gas supply system provides fluid to make the bare optical fiber float within the guide groove. As the bare optical fiber passes through the direction conversion component, the gas supply system sprays gas into the guide groove, forming an air cushion to support the fiber's levitation. By adjusting the position of the non-contact guide component, the length of the optical fiber winding path is changed, achieving cooling within a limited space. This replaces the long-distance cooling of traditional straight paths, avoiding the problem of increased equipment height due to insufficient cooling distance in traditional technologies. It eliminates the need for constructing new high-rise buildings or modifying existing structures. The equipment significantly reduces the space requirements and equipment investment costs of the production site. The measurement unit monitors the outer diameter of the coating layer, the fiber speed, and the bare wire temperature in real time. After receiving the data, the control unit adjusts the position of the direction conversion component. When the measurement unit detects an abnormal temperature, the control unit instructs the direction conversion component to adjust the fiber winding length (such as increasing the winding length to extend the cooling time). At the same time, the gas supply system synchronously adjusts the gas flow rate to form a closed-loop temperature control, ensuring the stability of the bare fiber temperature and thus ensuring the uniformity of the coating outer diameter. This solves the problem of temperature fluctuation caused by inaccurate gas quantity control in traditional technologies, avoids deviations in the coating outer diameter due to temperature changes, and improves the stability of coating quality.

[0013] 2. This invention provides an optical fiber manufacturing apparatus and method. A gas outlet is provided on the surface of a non-contact guide component of the direction conversion assembly, connected to a gas supply system. The gas supply system delivers a stable airflow to the outlet, forming an air cushion on the guide component surface, causing the bare optical fiber to suspend above the guide section. During transmission, it does not contact any components, eliminating the risk of frictional damage and overcoming the scratching problem caused by direct contact between traditional guides and optical fibers. This improves the mechanical strength and reliability of the bare optical fiber, making it suitable for high-requirement communication transmission scenarios. The detection unit of the measurement section uses image recognition technology to capture real-time images of the bare optical fiber. The control unit adjusts the parameters of the gas supply system and spinning section based on the detection results. The detection unit performs real-time imaging analysis of special structures such as the aperture diameter of the bare optical fiber. The control unit dynamically adjusts the gas pressure (such as the inflation pressure when the aperture forms) or spinning temperature based on the measurement results to ensure the dimensional accuracy of special structures. This overcomes the limitations of traditional indirect measurement, enabling direct monitoring and real-time control of special structures, meeting the high-precision requirements of sensing, medical, and other fields for special optical fiber structures.

[0014] 3. This invention provides an optical fiber manufacturing apparatus and method. A heating furnace in the spinning section is equipped with a temperature control system connected to a control unit. The control unit sends commands to the heating furnace's temperature control system based on the optical fiber substrate material, precisely adjusting the melting temperature. This, combined with a drawing mechanism, draws the bare optical fiber at a constant speed, ensuring uniform wire diameter. This solves the problem of uneven wire thickness caused by temperature fluctuations in traditional spinning processes, providing a high-quality substrate for subsequent coating processes and improving the basic performance of the optical fiber. The coating section includes a resin storage tank, a coating nozzle, and a curing device, all adjusted by the control unit based on data from the measurement unit. After monitoring the coating's outer diameter, the measurement unit adjusts the resin flow rate of the coating nozzle in real time to ensure uniform coating thickness. Simultaneously, it adjusts the temperature or light parameters of the curing device to enable rapid and uniform resin curing. This overcomes the lag of manual adjustment in traditional coating processes, achieving automated and precise control of the coating process, reducing coating defects, and improving the weather resistance and mechanical protection performance of the optical fiber. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural view of the present invention. Figure 2 This is an overall framework diagram of the present invention; Figure 3 This is a diagram of the direction conversion component of the present invention; Figure 4 This is a monitoring diagram of the internal structure of the present invention; Figure 5 This is a diagram of the gas supply system of the present invention; Figure 6 This is a flow chart of the spinning section of the present invention; Figure 7 This is a process diagram of the coating part of the present invention; Figure 8 This is a flowchart of the manufacturing method of the present invention.

[0016] The components include: 1. Spinning section; 101. Heating furnace; 102. Drawing mechanism; 2. Direction conversion assembly; 201. Non-contact guide; 3. Coating section; 301. Resin storage tank; 302. Coating nozzle; 303. Curing device; 4. Measuring section; 401. Detection unit; 5. Control section; and 6. Gas supply system. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail below.

[0018] Example 1: An apparatus for manufacturing optical fiber, referring to... Figure 1 , Figure 2 and Figure 3The system includes a spinning section 1, a direction conversion assembly 2, a coating section 3, a measuring section 4, and a control section 5. The spinning section 1 is used to melt-spin optical fiber material to form a bare optical fiber wire. The direction conversion assembly 2 is positioned at any location from the spinning section 1 to the coating section 3, and has a guide groove for guiding the bare optical fiber wire. A fluid outlet is formed within the guide groove to float the bare optical fiber wire laid along the guide groove, used to convert the direction of the bare optical fiber wire. The coating section 3 has a resin-based coating layer on the outer periphery of the bare optical fiber wire. The measuring section 4 measures the outer diameter of the coating layer, the linear velocity of the optical fiber wire, or the temperature of the bare optical fiber wire. The control section 5 controls the position of the direction conversion assembly 2 based on the measurements from the measuring section 4, adjusting the length of the bare optical fiber wire from the spinning section 1 to the coating section 3. The direction conversion assembly 2 is positioned between the spinning section 1 and the coating section 3, and its internal guide groove has a fluid outlet connected to a gas supply system 6. The gas supply system 6 provides fluid to make the bare optical fiber wire float within the guide groove. When the bare optical fiber wire passes through the direction conversion assembly 2, the gas supply system 6... Gas is ejected from the guide groove to form an air cushion that supports the levitation of the optical fiber. By adjusting the position of the non-contact guide 201, the length of the optical fiber winding path is changed, achieving cooling within a limited space. This replaces the long-distance cooling of the traditional straight path, avoiding the problem of increasing equipment height due to insufficient cooling distance in traditional technologies. It eliminates the need for new high-rise buildings or equipment modifications, significantly reducing production space requirements and equipment investment costs. The measuring unit 4 monitors the outer diameter of the coating layer, the optical fiber speed, and the bare wire temperature in real time. After receiving the data, the control unit 5 adjusts the position of the direction conversion component 2. When the measuring unit 4 detects an abnormal temperature, the control unit 5 instructs the direction conversion component 2 to adjust the optical fiber winding length (such as increasing the winding length to extend the cooling time). At the same time, the gas supply system 6 synchronously adjusts the gas flow rate, forming a closed-loop temperature control to ensure stable bare fiber temperature and uniform coating outer diameter. This solves the problem of temperature fluctuations caused by inaccurate gas quantity control in traditional technologies, avoids deviations in the coating outer diameter due to temperature changes, and improves the stability of coating quality.

[0019] Reference Figure 2 , Figure 3 and Figure 4The direction conversion component 2 includes multiple non-contact guides 201. Each non-contact guide 201 has a guide portion along its outer peripheral surface capable of winding a portion of the bare optical fiber. An outlet is provided in the guide portion to expel gas that allows the bare optical fiber to float. By adjusting the position of at least one of the multiple non-contact guides 201, the winding length of the bare optical fiber relative to the multiple non-contact guides 201 is increased or decreased, thereby controlling the cooling capacity of the bare optical fiber. The measurement unit 4 also includes a detection unit 401 for measuring special structures inside the bare optical fiber. The detection unit 401 uses image recognition technology to monitor the bare optical fiber in real time. The control unit 5 adjusts the process parameters related to the formation of special structures during manufacturing based on the measurement results of the detection unit 401. The gas outlet forms an air cushion to support the levitation of the optical fiber, avoiding contact damage. The adjustable winding length enables dynamic control of the cooling capacity, adapting to the cooling requirements of optical fibers of different materials. Direct visualization and monitoring of special structures, and real-time adjustment of parameters such as gas pressure, ensure the dimensional accuracy of structures such as voids, meeting the needs of high-end optical fiber manufacturing.

[0020] Reference Figure 5 , Figure 6 and Figure 7 The system also includes a gas supply system 6, which is connected to the fluid outlet of the direction conversion component 2 to provide fluid with stable pressure and flow rate. The gas supply system 6 has pressure regulation and flow rate monitoring functions and can adjust the pressure and flow rate of the output fluid according to the instructions of the control unit 5. The spinning unit 1 includes a heating furnace 101 and a drawing mechanism 102. The heating furnace 101 is used to heat the optical fiber mother material to a molten state. The drawing mechanism 102 cooperates with the heating furnace 101 to draw the molten optical fiber mother material into a bare optical fiber. The heating furnace 101 has a precise temperature control system and can accurately adjust the heating temperature according to the material and process requirements of the optical fiber mother material. The coating unit 3 includes a resin storage tank 301, a coating nozzle 302, and a curing device 303. The resin storage tank 301 is used to store liquid resin. The coating nozzle 302 uniformly coats the resin on the outer periphery of the bare optical fiber. The curing device 303 cures the coated resin. The coating flow rate of the coating nozzle 302 and the curing parameters of the curing device 303 can be adjusted by the control unit 5 according to the feedback of the measuring unit 4. A stable fluid supply and dynamic adjustment of pressure and flow rate, combined with the direction conversion component 2, precisely control the cooling temperature of the bare wire, improve the uniformity of the coating outer diameter, precisely adjust the melting temperature according to the base material, and work with the drawing mechanism 102 to stabilize the drawing speed to ensure uniform fiber bare wire diameter, providing a high-quality substrate for the coating. Automated adjustment of resin flow and curing parameters ensures uniform coating thickness and sufficient curing, improving the mechanical protection performance and weather resistance of the fiber.

[0021] This application also discloses a method for manufacturing optical fibers, which is applicable to the optical fiber manufacturing apparatus described above. The construction steps are as follows: Spinning process: The optical fiber mother material is melt-spun in spinning section 1 to form bare optical fiber wire; Direction conversion process: At any position between the location where the spinning process is performed and the location where the coating process is performed, the direction of the bare optical fiber is converted using the guide groove and fluid outlet of the direction conversion component 2; Coating process: A resin-based covering layer is applied to the outer periphery of the bare optical fiber in coating section 3; Measurement and adjustment process: The outer diameter of the coating layer, the linear speed of the optical fiber, or the temperature of the bare optical fiber is measured by the measuring unit 4. The control unit 5 controls the position of the direction conversion component 2 according to the measured values ​​and adjusts the length of the bare optical fiber from the spinning unit 1 to the coating unit 3.

[0022] Reference Figure 2 and Figure 8 It also includes the monitoring and control process for the special structure inside the bare optical fiber. In the monitoring and control process, the bare optical fiber is photographed by an image acquisition device, and the aperture is determined based on image analysis. The process parameters related to the formation of the special structure are adjusted in real time according to the measurement results to ensure the dimensional accuracy and stability of the special structure. Real-time monitoring and dynamic adjustment ensure the dimensional accuracy of the special structure and expand the application scenarios of optical fiber in high-precision fields such as sensing and medical care.

[0023] The implementation principle of this application embodiment is as follows: The heating furnace 101 of the spinning section 1 heats the optical fiber mother material to a molten state, and the temperature control system precisely adjusts the heating temperature according to the material of the mother material; the drawing mechanism 102 cooperates with the heating furnace 101 to draw the molten mother material into a bare optical fiber at a constant speed to ensure the uniformity of the bare wire diameter; in the guide groove of the direction conversion component 2, the gas supply system 6 sprays gas through the fluid outlet to form an air cushion in the guide groove, so that the bare optical fiber is suspended; multiple non-contact guides 201 wind the bare optical fiber along the outer peripheral surface, and by adjusting the position of at least one guide, the winding length of the optical fiber is changed, thereby controlling the cooling time and cooling capacity of the bare wire; the resin storage tank 301 supplies liquid resin to the coating nozzle 302, and the nozzle uniformly coats the resin on the outer periphery of the bare optical fiber; curing The device 303 performs temperature or light curing treatment on the coated resin. The coating flow rate and curing parameters are adjusted in real time by the control unit 5 based on the feedback from the measurement unit 4. The measurement unit 4 measures the outer diameter of the cover layer, the fiber speed, and the bare wire temperature in real time, and monitors special internal structures (such as pore size) of the bare wire through the detection unit 401 based on image recognition technology. After receiving the measurement data, the control unit 5 calculates and outputs control commands to adjust the position of the direction conversion component 2, the pressure and flow rate of the gas supply system 6, the process parameters of the coating unit 3, etc., to form a closed-loop control. The gas supply system 6 is connected to the fluid outlet of the direction conversion component 2, and adjusts the pressure and flow rate of the output fluid according to the commands of the control unit 5 to ensure stable gas pressure in the guide tank, maintain the suspended state of the fiber optic bare wire, and accurately control the cooling intensity.

[0024] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An apparatus for manufacturing optical fiber, comprising a spinning section (1), a direction conversion assembly (2), a coating section (3), a measuring section (4), and a control section (5), characterized in that: The spinning section (1) is used to melt-spin the optical fiber mother material to form a bare optical fiber wire; the direction conversion component (2) is set at any position from the spinning section (1) to the coating section (3), has a guide groove for guiding the bare optical fiber wire, and a fluid outlet is formed in the guide groove to make the bare optical fiber wire float along the guide groove for converting the direction of the bare optical fiber wire; the coating section (3) is provided with a resin-based covering layer on the outer periphery of the bare optical fiber wire; the measuring section (4) is used to measure the outer diameter of the covering layer, the linear velocity of the optical fiber wire, or the temperature of the bare optical fiber wire; the control section (5) controls the position of the direction conversion component (2) according to the measured value of the measuring section (4) and adjusts the length of the bare optical fiber wire from the spinning section (1) to the coating section (3).

2. The optical fiber manufacturing apparatus according to claim 1, characterized in that: The direction conversion assembly (2) includes a plurality of non-contact guides (201). Each non-contact guide (201) has a guide portion along its outer peripheral surface capable of winding a portion of the bare optical fiber. The guide portion is provided with an outlet for blowing out gas that makes the bare optical fiber float. By adjusting the position of at least one of the plurality of non-contact guides (201), the winding length of the bare optical fiber relative to the plurality of non-contact guides (201) is increased or decreased, thereby controlling the cooling capacity of the bare optical fiber.

3. The optical fiber manufacturing apparatus according to claim 1, characterized in that: The measuring unit (4) further includes a detection unit (401) for measuring the special structure inside the bare optical fiber. The detection unit (401) monitors the bare optical fiber in real time based on image recognition technology. The control unit (5) adjusts the process parameters related to the formation of the special structure during the manufacturing process according to the measurement results of the detection unit (401).

4. The optical fiber manufacturing apparatus according to claim 1, characterized in that, It also includes a gas supply system (6), which is connected to the fluid outlet of the direction conversion component (2) to provide fluid with stable pressure and flow rate. The gas supply system (6) has pressure regulation and flow rate monitoring functions and can adjust the pressure and flow rate of the output fluid according to the instructions of the control unit (5).

5. The optical fiber manufacturing apparatus according to claim 1, characterized in that: The spinning section (1) includes a heating furnace (101) and a drawing mechanism (102). The heating furnace (101) is used to heat the optical fiber mother material to a molten state. The drawing mechanism (102) cooperates with the heating furnace (101) to draw the molten optical fiber mother material into a bare optical fiber. The heating furnace (101) has a precise temperature control system, which can accurately adjust the heating temperature according to the material and process requirements of the optical fiber mother material.

6. The optical fiber manufacturing apparatus according to claim 1, characterized in that: The coating unit (3) includes a resin storage tank (301), a coating nozzle (302), and a curing device (303). The resin storage tank (301) is used to store liquid resin. The coating nozzle (302) uniformly coats the resin on the outer periphery of the bare optical fiber. The curing device (303) cures the coated resin. The coating flow rate of the coating nozzle (302) and the curing parameters of the curing device (303) can be adjusted by the control unit (5) based on the feedback from the measurement unit (4).

7. The method for manufacturing an optical fiber according to claims 1-6, characterized in that, Includes the following steps: Spinning process: The optical fiber mother material is melt-spun in the spinning section (1) to form a bare optical fiber wire; Direction conversion process: At any position between the location where the spinning process is performed and the location where the coating process is performed, the direction of the bare optical fiber is converted using the guide groove and fluid outlet of the direction conversion component (2); Coating process: A resin-based covering layer is provided on the outer periphery of the bare optical fiber in the coating section (3); Measurement and adjustment process: The outer diameter of the coating layer, the linear speed of the optical fiber, or the temperature of the bare optical fiber is measured by the measuring unit (4). The control unit (5) controls the position of the direction conversion component (2) according to the measured value and adjusts the length of the bare optical fiber from the spinning part (1) to the coating part (3).

8. The method for manufacturing an optical fiber according to claim 7, characterized in that, It also includes a monitoring and control process for the special structure inside the bare optical fiber. In the monitoring and control process, the bare optical fiber is photographed by an image acquisition device, the aperture is determined based on image analysis, and the process parameters related to the formation of the special structure are adjusted in real time according to the measurement results to ensure the dimensional accuracy and stability of the special structure.

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