Fiber drawing temperature control system for low-dielectric glass fiber

Abstract

The invention provides a fiber drawing temperature control system for low-dielectric glass fibers, relates to the technical field of fiber drawing temperature control, and aims at monitoring the temperature of each area of a fiber bushing in the preparation process of the low-dielectric glass fibers in real time. Generating a temperature change curve of each area in the fiber bushing through the monitored temperature data, extracting temperature variation characteristics of each area in the corresponding temperature change curve, and constructing a temperature variation trend chart of the fiber bushing based on the temperature variation characteristics of each area; obtaining a theoretical temperature distribution diagram of fiber drawing in the preparation process of the low-dielectric glass fiber, and determining a regional temperature regulation and control sequence of the fiber bushing according to the temperature variation trend diagram and the theoretical temperature distribution diagram; according to the application, the wire drawing temperature of the fiber bushing can be accurately regulated and controlled in the fiber wire drawing process, so that the production quality of the low-dielectric glass fiber is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fiber drawing temperature control, and more specifically, to a fiber drawing temperature control system for low-dielectric glass fibers. Background Art

[0002] Temperature control for low-dielectric glass fiber drawing is a complex and delicate process, involving efficient drawing of the molten glass, consistent fiber quality, and temperature management throughout the entire production process. The process primarily involves the molten glass flowing from the melt pool through a fiber bushing (or drawing die) to form fine fibers, followed by cooling and drawing.

[0003] During the production of low-dielectric glass fibers, the temperature of the molten glass typically reaches a very high temperature, typically between 1400°C and 1600°C. At this point, the molten glass is drawn into fibers through a fiber shroud. The temperature in the shroud area needs to be precisely controlled to ensure the fluidity of the molten glass and the quality of the fiber formation. Excessively high temperatures can cause the molten glass to flow too quickly, making it difficult to precisely control the fiber diameter and even leading to fiber breakage. Excessively low temperatures, on the other hand, can lead to insufficient fluidity of the molten glass, affecting fiber formation and potentially causing uneven fiber surface quality. Therefore, precisely controlling the drawing temperature of the fiber shroud during the fiber drawing process to improve the production quality of low-dielectric glass fibers is a challenge facing the industry. Summary of the Invention

[0004] The present application provides a fiber drawing temperature control system for low dielectric glass fibers, which can accurately control the drawing temperature of a fiber bushing during the fiber drawing process to improve the production quality of low dielectric glass fibers.

[0005] The present application provides a fiber drawing temperature control system for low dielectric glass fibers, the temperature control system comprising:

[0006] Temperature monitoring module, used to monitor the temperature of each area of ​​the fiber bushing in real time during the preparation of low-dielectric glass fiber;

[0007] The temperature variation extraction module is used to generate the temperature variation curve of each area in the fiber leak plate based on the monitored temperature data, extract the temperature variation characteristics of each area from the corresponding temperature variation curve, and construct the temperature variation trend diagram of the fiber leak plate based on the temperature variation characteristics of each area;

[0008] A theoretical comparison module is used to obtain a theoretical temperature distribution diagram of fiber drawing during the preparation of low-dielectric glass fibers, and determine a regional temperature control sequence for the fiber bushing based on the temperature variation trend diagram and the theoretical temperature distribution diagram;

[0009] The temperature control module is used to use the regional temperature control sequence to respectively control the temperature of each region with severe temperature fluctuation in the fiber bushing.

[0010] In this embodiment, the temperature of each area of ​​the fiber bushing during the preparation of the low dielectric glass fiber is monitored in real time by thermocouple sensors.

[0011] In this embodiment, the fiber bushing used in the preparation process of the low-dielectric glass fiber is a platinum-rhodium alloy drawing bushing.

[0012] In this embodiment, generating the temperature change curve of each area in the fiber bushing based on the monitored temperature data specifically includes:

[0013] De-noising the monitored temperature data to obtain de-noised temperature data;

[0014] Extract the temperature data of each area in the fiber bushing from the denoised temperature data;

[0015] The temperature data of each area are fitted respectively to obtain the temperature change curve of each area in the fiber bushing.

[0016] In this embodiment, extracting the temperature variation characteristics of each region from the corresponding temperature variation curve specifically includes:

[0017] For the temperature change curve of each area in the fiber bushing, the temperature change curve of the area is divided into multiple temperature change curve segments through a preset time window;

[0018] Determine the temperature fluctuation and temperature variation rate of each temperature change curve segment;

[0019] Determine the temperature variation of each temperature change curve segment through the corresponding temperature fluctuation and temperature variation rate;

[0020] The temperature variation characteristics of the region are determined according to the temperature variation degree of each temperature variation curve segment, and then the temperature variation characteristics of each region are obtained.

[0021] In this embodiment, constructing a temperature variation trend diagram of the fiber bushing based on the temperature variation characteristics of each region specifically includes:

[0022] Obtain a pre-trained temperature change prediction model;

[0023] Inputting the temperature variation characteristics of each region into the temperature variation prediction model for prediction, thereby obtaining the temperature variation trend of each region;

[0024] The temperature variation trend diagram of the fiber leaky plate is constructed based on the temperature variation trend of each area.

[0025] In this embodiment, the temperature change prediction model is a deep learning model based on the long short-term memory network.

[0026] In this embodiment, obtaining a theoretical temperature distribution diagram of fiber drawing during the preparation of low dielectric glass fiber specifically includes:

[0027] Obtain a heat conduction model for the fiber drawing process;

[0028] Determining theoretical temperature distribution information of each area in the fiber bushing based on the heat conduction model;

[0029] A theoretical temperature distribution diagram of fiber drawing in the fiber bushing is generated based on the theoretical temperature distribution information of each area.

[0030] In this embodiment, determining the regional temperature control sequence for the fiber bushing according to the temperature variation trend diagram and the theoretical temperature distribution diagram specifically includes:

[0031] The temperature variation trend graph and the theoretical temperature distribution graph are fused and compared to obtain multiple areas of severe fluctuation in the fiber bushing;

[0032] For each violently fluctuating region in the fiber bushing, obtain the temperature variation trend and theoretical temperature distribution information corresponding to the violently fluctuating region in the temperature variation trend diagram and the theoretical temperature distribution diagram;

[0033] Determining the temperature control amount for the violently fluctuating area based on the temperature variation trend and the theoretical temperature distribution information, and then obtaining the temperature control amount for each violently fluctuating area in the fiber bushing;

[0034] The regional temperature control sequence of the fiber bushing is determined according to all the temperature control quantities.

[0035] In this embodiment, using the regional temperature control sequence to control the temperature of each region with severe temperature fluctuations in the fiber bushing specifically includes:

[0036] For each area of ​​severe fluctuation in the fiber bushing, obtain the temperature control value corresponding to the area of ​​severe fluctuation in the temperature control sequence of the area;

[0037] Determining a temperature control strategy for the area with severe fluctuations based on the temperature control amount;

[0038] The temperature of the violently fluctuating area is regulated according to the temperature control strategy, thereby completing the temperature control of each violently fluctuating area in the fiber leaking plate.

[0039] The technical solutions provided by the embodiments disclosed in this application have the following beneficial effects:

[0040] The temperature monitoring module is used to monitor the temperature of each area of ​​the fiber leak plate in real time during the preparation of low-dielectric glass fiber; the temperature variation extraction module generates a temperature change curve for each area in the fiber leak plate based on the monitored temperature data, extracts the temperature variation characteristics of each area in the corresponding temperature change curve, and constructs a temperature variation trend diagram of the fiber leak plate based on the temperature variation characteristics of each area; the theoretical comparison module obtains the theoretical temperature distribution diagram of fiber drawing during the preparation of low-dielectric glass fiber, and determines the regional temperature control sequence of the fiber leak plate based on the temperature variation trend diagram and the theoretical temperature distribution diagram; the temperature control module uses the regional temperature control sequence to respectively control the temperature of each area with severe fluctuations in the fiber leak plate.

[0041] It can be seen that in the present application, first, the temperature change curve of each area in the fiber leak plate is generated by monitoring the temperature data, and the temperature variation characteristics are extracted. The temperature variation trend diagram of the fiber leak plate constructed based on these characteristics can provide an accurate temperature control basis for the production of low-dielectric glass fiber; then, by obtaining the theoretical temperature distribution diagram during the preparation process of low-dielectric glass fiber and combining the temperature variation trend diagram to optimize the temperature control sequence, the temperature accuracy in the fiber drawing process can be significantly improved; finally, by accurately controlling the temperature of the area with severe fluctuations, the problem of excessive temperature changes can be effectively avoided, and the production quality of low-dielectric glass fiber can be improved.

[0042] In summary, the technical solution adopted in the present application can accurately control the drawing temperature of the fiber bushing during the fiber drawing process, so as to improve the production quality of low-dielectric glass fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0044] Figure 1 This is a module structure diagram of a fiber drawing temperature control system for low dielectric glass fibers provided in this application;

[0045] Figure 2 is an exemplary flow chart for extracting temperature variation characteristics of each region provided by this application;

[0046] Figure 3 This is an exemplary flow chart for determining a regional temperature control sequence for a fiber bushing provided in the present application. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] The embodiment of the present application provides a fiber drawing temperature control system for low dielectric glass fiber, the core of which is to monitor the temperature of each area of ​​the fiber leak plate in the process of preparing low dielectric glass fiber in real time through a temperature monitoring module; the temperature variation extraction module generates a temperature change curve of each area in the fiber leak plate through the monitored temperature data, extracts the temperature variation characteristics of each area in the corresponding temperature variation curve, and constructs a temperature variation trend diagram of the fiber leak plate based on the temperature variation characteristics of each area; the theoretical comparison module obtains the theoretical temperature distribution diagram of fiber drawing during the preparation of low dielectric glass fiber, and determines the regional temperature control sequence of the fiber leak plate according to the temperature variation trend diagram and the theoretical temperature distribution diagram; the temperature control module uses the regional temperature control sequence to perform temperature control on each violently fluctuating area in the fiber leak plate. The above scheme can be used to accurately control the drawing temperature of the fiber leak plate during the fiber drawing process to improve the production quality of low dielectric glass fiber.

[0049] In order to better understand the above technical solution, the following will be described in detail with reference to the accompanying drawings and specific implementation methods. Figure 1 As shown in the figure, this figure is a module structure diagram of a fiber drawing temperature control system for low dielectric glass fiber according to this embodiment of the present application. The response system includes: a temperature monitoring module 100, a temperature variation extraction module 200, a theoretical comparison module 300 and a temperature control module 400, which are described as follows:

[0050] The temperature monitoring module 100 is used to monitor the temperature of each area of ​​the fiber bushing in real time during the preparation of low dielectric glass fiber.

[0051] In specific implementation, the temperature of each area of ​​the fiber leakage plate in the process of preparing low dielectric glass fiber can be monitored in real time by thermocouple sensors; it should be noted that in this application, the fiber leakage plate in the process of preparing low dielectric glass fiber is a platinum-rhodium alloy drawing leakage plate. In the process of preparing low dielectric glass fiber, the temperature of each area of ​​the fiber leakage plate can be monitored in real time by using thermocouple sensors. The temperature monitoring accuracy can be improved. The fiber leakage plate can be divided into multiple areas according to its geometric shape. The temperature monitoring of each area of ​​the fiber leakage plate can be achieved by deploying multiple thermocouple sensors. The thermocouple sensor connects two different conductor materials together and uses the principle of generating electromotive force due to the temperature difference at the contact point to measure temperature changes with high precision.

[0052] The temperature variation extraction module 200 is used to generate a temperature variation curve of each area in the fiber leak plate based on the monitored temperature data, extract the temperature variation characteristics of each area in the corresponding temperature variation curve, and construct a temperature variation trend diagram of the fiber leak plate based on the temperature variation characteristics of each area.

[0053] In this embodiment, the temperature change curves of various regions in the fiber bushing are generated by monitoring the temperature data in the following manner, namely:

[0054] De-noising the monitored temperature data to obtain de-noised temperature data;

[0055] Extract the temperature data of each area in the fiber bushing from the denoised temperature data;

[0056] The temperature data of each area are fitted respectively to obtain the temperature change curve of each area in the fiber bushing.

[0057] In specific implementation, first, the monitored temperature data can be denoised using wavelet transform to obtain denoised temperature data. The wavelet transform can remove data fluctuations introduced by sensor noise, environmental interference or measurement errors; then, the temperature data of each area in the fiber leak plate can be extracted from the denoised temperature data, that is, the corresponding temperature data can be extracted from the denoised temperature data according to the sensor identification corresponding to each area in the fiber leak plate; finally, the temperature data of each area can be fitted separately using polynomial fitting to obtain the temperature change curve of each area in the fiber leak plate, and the temperature change curve can represent the temperature change situation in the corresponding area.

[0058] Preferably, in this embodiment, reference Figure 2 As shown in FIG. 1 , this figure is an exemplary flow chart for extracting the temperature variation characteristics of each region in an embodiment of the present application. In this embodiment, the temperature variation characteristics of each region in the corresponding temperature variation curve can be extracted by the following steps:

[0059] First, in step S21, for the temperature change curve of each area in the fiber bushing, the temperature change curve of the area is divided into multiple temperature change curve segments according to a preset time window;

[0060] Then, in step S22, the temperature fluctuation and temperature variation rate of each temperature change curve segment are determined;

[0061] Next, in step S23, the temperature variation of each temperature change curve segment is determined by the corresponding temperature fluctuation and temperature variation rate;

[0062] Finally, in step S24, the temperature variation characteristics of the region are determined according to the temperature variation degree of each temperature variation curve segment, thereby obtaining the temperature variation characteristics of each region.

[0063] In specific implementation, first, for the temperature change curve of each area in the fiber leak plate, the temperature change curve of the area can be divided into multiple temperature change curve segments through a preset time window. The size of the time window can be preset based on historical experience, or it can be preset by comprehensively considering the process change speed, the frequency of temperature fluctuations and the time period of the production process; then, the temperature fluctuation degree and temperature variation rate of each temperature change curve segment can be determined, wherein the temperature fluctuation degree represents the overall fluctuation degree of the temperature data in the temperature change curve segment, the standard deviation of all temperature data in the temperature change curve segment can be used as the temperature fluctuation degree of the temperature change curve segment, the temperature variation rate represents the overall abnormal change rate of the temperature data in the temperature change curve segment, and the slope of the temperature change curve segment can be used as the temperature variation rate of the temperature change curve segment. The temperature fluctuation degree and temperature variation rate of each temperature change curve segment can be obtained in the above manner.

[0064] In addition, in a specific implementation, the temperature variability of each temperature change curve segment can be determined by the corresponding temperature fluctuation and temperature variation rate, wherein the temperature variability represents the overall abnormal change degree of the temperature data in the temperature change curve segment. In actual implementation, the temperature fluctuation and temperature variation rate of the temperature change curve segment can be normalized respectively, and then the normalized temperature fluctuation and the normalized temperature variation rate are summed, and the result is used as the temperature variability of the temperature change curve segment. The temperature variability of each temperature change curve segment can be obtained in the above manner; finally, the temperature variation characteristics of the region can be determined according to the temperature variability of each temperature change curve segment, wherein the temperature variation characteristics are used to represent the characteristics of the abnormal temperature change of the corresponding region. The standard deviation of the temperature variability of all temperature change curve segments can be used as the temperature variation characteristics of the corresponding region. The temperature variation characteristics of each region can be obtained in the above manner.

[0065] In this embodiment, the temperature variation trend diagram of the fiber bushing is constructed based on the temperature variation characteristics of each area in the following manner, namely:

[0066] Obtain a pre-trained temperature change prediction model;

[0067] Inputting the temperature variation characteristics of each region into the temperature variation prediction model for prediction, thereby obtaining the temperature variation trend of each region;

[0068] The temperature variation trend diagram of the fiber leaky plate is constructed based on the temperature variation trend of each area.

[0069] In specific implementation, first, a pre-trained temperature variation prediction model can be obtained, which is a deep learning model based on a long short-term memory network; then, the temperature variation characteristics of each region can be input into the temperature variation prediction model for prediction. During the prediction process, the temperature variation characteristics of each region will be used as input data of the temperature variation prediction model, and the input data will be standardized or normalized to facilitate processing by the temperature variation prediction model. The temperature variation prediction model predicts the temperature change trend of each region, thereby outputting the temperature variation trend of each region, wherein the temperature variation trend represents the value to be reached by the temperature of the region through change in a period of time in the future; finally, a temperature variation trend map of the fiber leak board can be constructed based on the temperature variation trend of each region, that is, the temperature variation trend of each region can be merged by space in a visualization tool, and the temperature variation trend of each region can be displayed in the form of a heat map to form an overall temperature change trend map. The temperature change trend map can be used to intuitively view the temperature change results of each region of the fiber leak board, thereby identifying which regions have abnormal temperature changes or potential risks.

[0070] It should be noted that by generating temperature change curves for various areas of the fiber bushing using monitored temperature data and extracting temperature variation characteristics, a fiber bushing temperature variation trend chart constructed based on these characteristics can provide a precise basis for temperature control in the production of low-dielectric glass fibers. This process not only facilitates real-time monitoring and analysis of temperature fluctuations, but also provides production personnel with intuitive trend charts, helping to promptly identify temperature anomalies and potential production problems, thereby achieving precise temperature control, improving product quality, optimizing production processes, saving energy, and increasing production efficiency.

[0071] The theoretical comparison module 300 is used to obtain a theoretical temperature distribution diagram of fiber drawing during the preparation of low dielectric glass fibers, and determine a regional temperature control sequence for the fiber bushing according to the temperature variation trend diagram and the theoretical temperature distribution diagram.

[0072] In this embodiment, the theoretical temperature distribution diagram of the fiber drawing process during the preparation of the low dielectric glass fiber can be obtained in the following manner:

[0073] Obtain a heat conduction model for the fiber drawing process;

[0074] Determining theoretical temperature distribution information of each area in the fiber bushing based on the heat conduction model;

[0075] A theoretical temperature distribution diagram of fiber drawing in the fiber bushing is generated based on the theoretical temperature distribution information of each area.

[0076] In specific implementation, first, a heat conduction model of the fiber drawing process can be obtained. The heat conduction model can be established based on the physical properties of the low-dielectric glass fiber (such as thermal conductivity, specific heat capacity, density, etc.) and the operating conditions in the fiber drawing process (such as melting temperature, cooling rate, heating power, etc.), which will not be repeated here; then, the theoretical temperature distribution information of each region in the fiber leak plate can be determined based on the heat conduction model, that is, according to the established heat conduction model, combined with known process conditions (such as heating power, cooling wind speed, ambient temperature, etc.), the temperature distribution of each region in the fiber leak plate can be calculated by numerical simulation using the finite element analysis method, that is, the theoretical temperature distribution information of each region in the fiber leak plate is obtained, and the theoretical temperature distribution information represents the temperature value information theoretically distributed in the corresponding region; finally, a theoretical temperature distribution map of the fiber drawing in the fiber leak plate can be generated based on the theoretical temperature distribution information of each region, that is, the theoretical temperature distribution information of each region is input into a visualization tool, so that the theoretical temperature distribution map can be represented in the form of a heat map, and the temperature value of each region is displayed by a color gradient.

[0077] Preferably, in this embodiment, reference Figure 3 As shown in FIG. 1 , this figure is an exemplary flow chart for determining a regional temperature control sequence for a fiber leaking plate in an embodiment of the present application. In this embodiment, determining a regional temperature control sequence for a fiber leaking plate based on the temperature variation trend diagram and the theoretical temperature distribution diagram can be specifically implemented by the following steps:

[0078] First, in step S31, the temperature variation trend graph and the theoretical temperature distribution graph are fused and compared to obtain multiple areas of severe fluctuation in the fiber bushing;

[0079] Then, in step S32, for each violent fluctuation area in the fiber bushing, the temperature variation trend and theoretical temperature distribution information corresponding to the violent fluctuation area in the temperature variation trend diagram and the theoretical temperature distribution diagram are obtained respectively;

[0080] Next, in step S33, the temperature control amount for the violently fluctuating area is determined based on the temperature variation trend and the theoretical temperature distribution information, thereby obtaining the temperature control amount for each violently fluctuating area in the fiber bushing.

[0081] Finally, in step S34, a regional temperature control sequence for the fiber bushing is determined according to all temperature control variables.

[0082] In specific implementation, the temperature variation trend graph and the theoretical temperature distribution graph can be fused and compared to obtain multiple areas of severe fluctuation in the fiber leakage plate, wherein the severe fluctuation area is an area in the fiber leakage plate where the temperature fluctuates violently. The severe fluctuation area usually indicates unstable temperature changes, which may be caused by external interference, uneven heating or insufficient cooling. An algorithm (such as correlation analysis or matching analysis) can be used to compare the temperature variation trend graph and the theoretical temperature distribution graph to determine which areas have a large degree of difference between the temperature variation trend graph and the theoretical temperature distribution graph, and the areas with a difference higher than the set threshold are regarded as areas of severe fluctuation, thereby obtaining multiple areas of severe fluctuation in the fiber leakage plate.

[0083] In addition, in the specific implementation, first, for each violently fluctuating area in the fiber leak plate, the temperature variation trend and theoretical temperature distribution information corresponding to the violently fluctuating area in the temperature variation trend diagram and the theoretical temperature distribution diagram can be obtained; then, the temperature control amount for the violently fluctuating area is determined according to the temperature variation trend and the theoretical temperature distribution information, wherein the temperature control amount is the temperature adjustment value of the corresponding area, and the difference between the temperature variation trend and the theoretical temperature distribution information can be used as the temperature control amount for the violently fluctuating area. The temperature control amount for each violently fluctuating area in the fiber leak plate can be obtained in the above manner; finally, the sequence composed of all the temperature control amounts can be used as the regional temperature control sequence for the fiber leak plate.

[0084] It should be noted that by obtaining a theoretical temperature distribution map during the low-dielectric glass fiber production process and combining it with a temperature variation trend map to optimize the temperature control sequence, the temperature accuracy during the fiber drawing process can be significantly improved. This not only helps to improve the production quality and consistency of low-dielectric glass fibers, but also reduces defect rates, improves production efficiency, and reduces equipment loss and failures.

[0085] The temperature control module 400 is configured to use the regional temperature control sequence to control the temperature of each region with severe temperature fluctuation in the fiber bushing.

[0086] In this embodiment, the regional temperature control sequence is used to control the temperature of each region with a sharp temperature fluctuation in the fiber bushing in the following manner, namely:

[0087] For each area of ​​severe fluctuation in the fiber bushing, obtain the temperature control value corresponding to the area of ​​severe fluctuation in the temperature control sequence of the area;

[0088] Determining a temperature control strategy for the area with severe fluctuations based on the temperature control amount;

[0089] The temperature of the violently fluctuating area is regulated according to the temperature control strategy, thereby completing the temperature control of each violently fluctuating area in the fiber leaking plate.

[0090] In specific implementation, first, for each area with severe fluctuations in the fiber leak plate, the temperature control amount corresponding to the area with severe fluctuations can be obtained in the regional temperature control sequence by traversal; then, the temperature control strategy for the area with severe fluctuations can be determined based on the temperature control amount. If the value of the temperature control amount is positive, it means that the temperature in the area with severe fluctuations is too high, and local heating measures can be taken. If the value of the temperature control amount is negative, it means that the temperature in the area with severe fluctuations is too low, and local cooling measures can be taken to maintain the stability of the fiber drawing temperature. The temperature control strategy should be flexible and can be adjusted in a targeted manner according to the temperature change characteristics of different areas. Multiple control levels can be set, such as using different power adjustment strategies in the heating area and different cooling methods in the cooling area to adapt to different production needs; finally, the temperature of the area with severe fluctuations can be regulated according to the temperature control strategy, thereby completing the temperature control of each area with severe fluctuations in the fiber leak plate.

[0091] It's important to note that precise temperature control in areas with significant temperature fluctuations can effectively avoid excessive temperature variations and improve the production quality of low-dielectric glass fibers. The temperature control amount, control strategy, and control implementation for each area need to be optimized based on the specific situation to ensure stable temperatures throughout the production process, thereby improving glass fiber quality consistency, reducing product defects, increasing production efficiency, and saving energy.

[0092] It can be seen that in the present application, first, the temperature change curve of each area in the fiber leak plate is generated by monitoring the temperature data, and the temperature variation characteristics are extracted. The temperature variation trend diagram of the fiber leak plate constructed based on these characteristics can provide an accurate temperature control basis for the production of low-dielectric glass fiber; then, by obtaining the theoretical temperature distribution diagram during the preparation process of low-dielectric glass fiber and combining the temperature variation trend diagram to optimize the temperature control sequence, the temperature accuracy in the fiber drawing process can be significantly improved; finally, by accurately controlling the temperature of the area with severe fluctuations, the problem of excessive temperature changes can be effectively avoided, and the production quality of low-dielectric glass fiber can be improved.

[0093] In summary, the technical solution adopted in the present application can accurately control the drawing temperature of the fiber bushing during the fiber drawing process, so as to improve the production quality of low-dielectric glass fiber.

[0094] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0095] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, including a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0096] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

Claims

1. A fiber drawing temperature control system for low dielectric glass fiber, characterized in that: The temperature control system includes: Temperature monitoring module, used to monitor the temperature of each area of ​​the fiber bushing in real time during the preparation of low-dielectric glass fiber; The temperature variation extraction module is used to generate the temperature variation curve of each area in the fiber leak plate based on the monitored temperature data, extract the temperature variation characteristics of each area from the corresponding temperature variation curve, and construct the temperature variation trend diagram of the fiber leak plate based on the temperature variation characteristics of each area; A theoretical comparison module is used to obtain a theoretical temperature distribution diagram of fiber drawing during the preparation of low-dielectric glass fibers, and determine a regional temperature control sequence for the fiber bushing based on the temperature variation trend diagram and the theoretical temperature distribution diagram; The temperature control module is used to use the regional temperature control sequence to respectively control the temperature of each region with severe temperature fluctuation in the fiber bushing.

2. A low dielectric glass fiber drawing temperature control system according to claim 1, characterized in that: The temperature of each area of ​​the fiber bushing during the preparation of low dielectric glass fiber is monitored in real time by thermocouple sensors.

3. The fiber drawing temperature control system for low dielectric glass fiber according to claim 1, characterized in that: The fiber bushing used in the preparation process of the low-dielectric glass fiber is a platinum-rhodium alloy drawing bushing.

4. The fiber drawing temperature control system for low dielectric glass fiber according to claim 1, characterized in that: The temperature change curves of each area in the fiber bushing are generated by monitoring the temperature data, including: De-noising the monitored temperature data to obtain de-noised temperature data; Extract the temperature data of each area in the fiber bushing from the denoised temperature data; The temperature data of each area are fitted respectively to obtain the temperature change curve of each area in the fiber bushing.

5. The fiber drawing temperature control system for low dielectric glass fiber according to claim 1, characterized in that: The specific features of temperature variation in each region extracted from the corresponding temperature variation curve include: For the temperature change curve of each area in the fiber bushing, the temperature change curve of the area is divided into multiple temperature change curve segments through a preset time window; Determine the temperature fluctuation and temperature variation rate of each temperature change curve segment; Determine the temperature variation of each temperature change curve segment through the corresponding temperature fluctuation and temperature variation rate; The temperature variation characteristics of the region are determined according to the temperature variation degree of each temperature variation curve segment, and then the temperature variation characteristics of each region are obtained.

6. The low dielectric glass fiber drawing temperature control system according to claim 1, characterized in that: The temperature variation trend diagram of the fiber leaking plate is constructed based on the temperature variation characteristics of each area, including: Obtain a pre-trained temperature change prediction model; Inputting the temperature variation characteristics of each region into the temperature variation prediction model for prediction, thereby obtaining the temperature variation trend of each region; The temperature variation trend diagram of the fiber leaky plate is constructed based on the temperature variation trend of each area.

7. A low dielectric glass fiber drawing temperature control system according to claim 6, characterized in that: The temperature change prediction model is a deep learning model based on long short-term memory network.

8. The low dielectric glass fiber drawing temperature control system according to claim 1, characterized in that: Obtaining the theoretical temperature distribution diagram of fiber drawing during the preparation of low dielectric glass fiber specifically includes: Obtain a heat conduction model for the fiber drawing process; Determining theoretical temperature distribution information of each area in the fiber bushing based on the heat conduction model; A theoretical temperature distribution diagram of fiber drawing in the fiber bushing is generated based on the theoretical temperature distribution information of each area.

9. The low dielectric glass fiber drawing temperature control system according to claim 1, characterized in that: Determining the regional temperature control sequence for the fiber bushing according to the temperature variation trend diagram and the theoretical temperature distribution diagram specifically includes: The temperature variation trend graph and the theoretical temperature distribution graph are fused and compared to obtain multiple areas of severe fluctuation in the fiber bushing; For each violently fluctuating region in the fiber bushing, obtain the temperature variation trend and theoretical temperature distribution information corresponding to the violently fluctuating region in the temperature variation trend diagram and the theoretical temperature distribution diagram; Determining the temperature control amount for the violently fluctuating area based on the temperature variation trend and the theoretical temperature distribution information, and then obtaining the temperature control amount for each violently fluctuating area in the fiber bushing; The regional temperature control sequence of the fiber bushing is determined according to all the temperature control quantities.

10. The fiber drawing temperature control system for low dielectric glass fiber according to claim 1, characterized in that: Using the regional temperature control sequence to control the temperature of each region with severe temperature fluctuations in the fiber bushing specifically includes: For each area of ​​severe fluctuation in the fiber bushing, obtain the temperature control value corresponding to the area of ​​severe fluctuation in the temperature control sequence of the area; Determining a temperature control strategy for the area with severe fluctuations based on the temperature control amount; The temperature of the violently fluctuating area is regulated according to the temperature control strategy, thereby completing the temperature control of each violently fluctuating area in the fiber leaking plate.

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