Preparation process optimization method and system based on polytetrafluoroethylene sewing thread

Abstract

The invention relates to the technical field of sewing thread preparation process optimization, in particular to a preparation process optimization method and system based on polytetrafluoroethylene sewing threads, and the method comprises the steps: obtaining a polytetrafluoroethylene resin particle set, obtaining a clean resin particle set, the use amount of magnetic nano filler, the use amount of a lubricant and the use amount of an antioxidant; performing stretching operation on the formed sewing threads, monitoring the formed sewing threads in real time, obtaining a stretching ratio and initial stretching sewing threads, calculating the crystallinity of the initial stretching sewing threads, performing heat setting on the optimal stretching sewing threads, obtaining optimal sewing threads, and summarizing the optimal sewing threads and optimal stretching parameters; an optimal sewing thread set and an optimal stretching parameter set are obtained, a stretching parameter database is constructed on the basis of the optimal stretching parameter set, and preparation process optimization based on the polytetrafluoroethylene sewing thread is completed on the basis of the optimal sewing thread set and the stretching parameter database. The quality and the performance of the polytetrafluoroethylene sewing thread can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewing thread preparation process optimization, and in particular to a preparation process optimization method and system for polytetrafluoroethylene-based sewing thread. Background Art

[0002] Polytetrafluoroethylene (PTFE) is a high-performance fluorinated polymer material with properties such as high-temperature resistance, chemical resistance, and low friction. PTFE sewing thread is sewing thread made from PTFE. Process optimization involves adjusting and improving the material preparation process through scientific methods and techniques to improve product quality, reduce production costs, and increase production efficiency.

[0003] During the stretching process, parameters such as the stretch ratio, stretching temperature, and stretching speed play a key role in the performance of sewing thread. In traditional processes, the optimization of these parameters often relies on empirical experience and lacks systematic theoretical guidance, resulting in low production efficiency. Furthermore, the lack of real-time monitoring and feedback mechanisms for sewing thread performance during the production process makes it difficult to adjust process parameters in a timely manner, resulting in poor controllability of the production process. Therefore, improving the quality and performance of PTFE sewing thread is an urgent technical problem that needs to be solved. Summary of the Invention

[0004] The present invention provides a preparation process optimization method based on polytetrafluoroethylene sewing thread and a computer-readable storage medium, the main purpose of which is to improve the quality and performance of polytetrafluoroethylene sewing thread and reduce production costs.

[0005] To achieve the above objectives, the present invention provides a method for optimizing the preparation process of polytetrafluoroethylene sewing thread, comprising: receiving a sewing thread preparation instruction, and obtaining a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction; Based on the polytetrafluoroethylene resin particle set, the amount of cleaning resin particle set, the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant are obtained; The cleaning resin pellets, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant are mixed to obtain a mixed material, and a pre-built extruder is set using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time; The mixed material is extruded by a pre-set extruder to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port; Perform the following operations for each forming sewing line in the forming sewing line set: Identify a stretching area, set a stretching environment in the stretching area, perform a stretching operation on the formed sewing thread using preset stretching parameters and the stretching environment, and monitor the formed sewing thread in real time to obtain a stretching ratio and an initial stretched sewing line; calculating the crystallinity of the initially stretched sewing thread according to the stretch ratio, extrusion temperature and extrusion time, and comparing the crystallinity with a preset standard crystallinity threshold; If the crystallinity is less than a preset standard crystallinity threshold, adjusting the stretching parameters to obtain an adjusted stretching parameter, using the adjusted stretching parameter as the stretching parameter, and returning to the step of performing a stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining optimal stretching parameters and an optimally stretched sewing thread; Heat setting the optimal stretch sewing thread to obtain the optimal sewing thread, and summarizing the optimal sewing thread and the optimal stretching parameters to obtain the optimal sewing thread set and the optimal stretching parameter set; A stretching parameter database is constructed based on the optimal stretching parameter set, and the preparation process optimization of polytetrafluoroethylene sewing thread is completed based on the optimal sewing thread set and the stretching parameter database.

[0006] Optionally, the step of obtaining the cleaning resin particles, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant based on the polytetrafluoroethylene resin particles comprises: Screening the polytetrafluoroethylene resin particle set to obtain a high-quality polytetrafluoroethylene resin particle set, wherein the high-quality polytetrafluoroethylene resin particle set includes a plurality of high-quality polytetrafluoroethylene resin particles; Performing a pretreatment operation on each fine polytetrafluoroethylene resin particle in the fine polytetrafluoroethylene resin particle set to obtain a clean resin particle set, wherein the pretreatment operation includes: a washing operation and a drying operation; Determine the ratio of magnetic nanofiller, lubricant and antioxidant, and obtain the resin weight of the clean resin pellets; The amount of magnetic nanofiller, lubricant and antioxidant is calculated based on the resin weight, magnetic nanofiller ratio, lubricant ratio and antioxidant ratio.

[0007] Optionally, the screening of the polytetrafluoroethylene resin particle collection to obtain a high-quality polytetrafluoroethylene resin particle collection comprises: Setting a sieve aperture, and using the sieve aperture to perform particle size screening on the polytetrafluoroethylene resin pellets to obtain a secondary polytetrafluoroethylene resin pellet, wherein the secondary polytetrafluoroethylene resin pellet comprises a plurality of secondary polytetrafluoroethylene resin pellets; Secondary polytetrafluoroethylene resins are sequentially extracted from the secondary polytetrafluoroethylene resins, and the following operations are performed on the extracted secondary polytetrafluoroethylene resins: Performing a purity test on the secondary polytetrafluoroethylene resin to obtain a purity test value, and calculating the impurity content based on the purity test value; Determine whether the impurity content is within the preset standard impurity content range; If the impurity content is within the preset standard impurity content range, the secondary polytetrafluoroethylene resin is used as the high-purity secondary resin, and the molecular weight of the high-purity secondary resin is tested to obtain the molecular weight of the polytetrafluoroethylene; Determine whether the molecular weight of polytetrafluoroethylene is within a preset reference molecular weight range; If it is confirmed that the molecular weight of the polytetrafluoroethylene is within the preset reference molecular weight range, the high-purity secondary resin is used as the superior polytetrafluoroethylene resin; If the impurity content is not within the preset standard impurity content range, the secondary polytetrafluoroethylene resin is removed from the secondary polytetrafluoroethylene resin set to obtain an updated polytetrafluoroethylene resin set, and the updated polytetrafluoroethylene resin set is used as the secondary polytetrafluoroethylene resin set, and the process returns to the step of sequentially extracting secondary polytetrafluoroethylene resin from the secondary polytetrafluoroethylene resin set until the secondary polytetrafluoroethylene resin set is empty. The fine-grained polytetrafluoroethylene resin is aggregated to obtain a fine-grained polytetrafluoroethylene resin set.

[0008] Optionally, the calculation of the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant based on the weight of the resin, the ratio of magnetic nanofiller, the ratio of lubricant and the ratio of antioxidant includes: Calculate the average particle size of the secondary polytetrafluoroethylene resin set, obtain the ambient humidity and ambient temperature, and calculate the amount of magnetic nanofiller based on the resin weight, polytetrafluoroethylene molecular weight, magnetic nanofiller ratio, and ambient temperature. The calculation formula for the amount of magnetic nanofiller is as follows: in, Indicates the amount of magnetic nanofiller used, Indicates the resin weight, Indicates the ratio of magnetic nanofiller, Indicates the average particle size of the resin particles, Indicates the ambient temperature, Indicates the molecular weight of polytetrafluoroethylene, Indicates the preset reference molecular weight; The lubricant dosage is calculated based on the resin weight, PTFE molecular weight, lubricant ratio and ambient humidity. The antioxidant dosage is calculated based on the resin weight, antioxidant ratio, PTFE molecular weight, ambient temperature and ambient humidity.

[0009] Optionally, the antioxidant dosage is calculated based on the resin weight, antioxidant ratio, polytetrafluoroethylene molecular weight, ambient temperature and ambient humidity, including: The antioxidant dosage is calculated based on the resin weight, polytetrafluoroethylene molecular weight, antioxidant ratio, ambient temperature and ambient humidity. The antioxidant dosage calculation formula is as follows:

[0010] in, Indicates the amount of antioxidants used, Indicates the antioxidant ratio.

[0011] Optionally, setting a stretching environment in the stretching area includes: Prefabricated electrodes are installed at the feed port and the discharge port of the prefabricated extruder to obtain a plurality of initial electrode positions, the electric field strength is set according to the plurality of initial electrode positions, and the electric field strength is monitored in real time to obtain an electric field strength value; Determining whether the electric field strength value is within a preset electric field setting range; If the electric field strength value is not within the preset electric field setting interval, adjusting the multiple initial electrode positions to obtain multiple suitable electrode positions, using the multiple suitable electrode positions as the multiple initial electrode positions, and returning to the step of setting the electric field strength according to the multiple initial electrode positions until the electric field strength value is within the preset electric field setting interval; If the electric field strength value is within a preset electric field setting interval, a pre-built magnetic field generator is set using preset magnetic field parameters to obtain a magnetic field regulator; A magnetic field regulator is installed in the stretching area to obtain a magnetic field area, and the magnetic field area is monitored in real time to obtain a magnetic field strength value, and to determine whether the magnetic field strength value is within a preset magnetic field setting range; If the magnetic field strength value is not within the preset magnetic field setting range, the magnetic field parameters are adjusted to obtain the adjusted magnetic field parameters, and the adjusted magnetic field parameters are used as the magnetic field parameters, and the step of setting the pre-constructed magnetic field generator using the preset magnetic field parameters is returned to until the magnetic field strength value is within the preset magnetic field setting range to obtain a stretching environment.

[0012] Optionally, the calculating of the crystallinity of the initially stretched sewing thread according to the stretch ratio, extrusion temperature and extrusion time comprises: The melting enthalpy of the formed sewing thread set is obtained. The crystallinity of the initial stretched sewing thread is calculated based on the melting enthalpy, polytetrafluoroethylene molecular weight, stretch ratio, extrusion temperature, and extrusion time. The calculation formula is as follows: in, Indicates the crystallinity, represents the melting enthalpy, represents the preset complete crystallization melting enthalpy, Indicates the stretch ratio, Indicates the extrusion temperature, Indicates the preset melting point of PTFE, It means squeezing out time. Indicates the preset reference extrusion time.

[0013] Optionally, obtaining the melting enthalpy of the formed sewing thread set includes: Obtain a sample sewing thread set from the formed sewing thread set, and calculate the sample weight of the sample sewing thread set; Set DSC test parameters, including temperature range, heating rate, and gas flow rate; Performing a heating test on a sample sewing thread set according to DSC test parameters to obtain a heat flow curve, and determining the curve integral area according to the heat flow curve, wherein the horizontal axis of the heat flow curve is temperature and the vertical axis of the heat flow curve is heat flow value; The melting enthalpy of the sample is calculated according to the integral area of ​​the curve and the sample weight, and the melting enthalpy of the sample is used as the melting enthalpy of the initial stretched sewing thread.

[0014] Optionally, determining the curve integral area according to the heat flow curve includes: Obtaining the melting start and end points from the heat flow curve, obtaining the melting interval based on the melting start and end points, and dividing the melting interval using a preset interval width to obtain a segmented interval group; For each segmented interval in the segmented interval group, perform the following operations: According to the segment interval, the segment starting point and segment end point are determined, and the starting point heat flow value and the end point heat flow value are determined according to the segment starting point and segment end point, wherein the segment starting point corresponds to the starting point heat flow value one-to-one, and the segment end point corresponds to the end point heat flow value one-to-one; The area of ​​the segmented interval is calculated based on the interval width, the starting point heat flow value, and the ending point heat flow value. The calculation formula for the segmented interval area is as follows: in, Indicates the first The area of ​​the segmented interval, represents the starting point heat flow value, represents the end point heat flow value, Indicates the width of the interval; Summarize the segmented interval areas to obtain segmented interval area groups, and add up the segmented interval area groups to obtain the curve integral area.

[0015] To achieve the above objectives, the present invention further provides a system for optimizing the preparation process of polytetrafluoroethylene sewing thread, comprising: a raw material mixing module, configured to receive a sewing thread preparation instruction, obtain a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction, obtain a clean resin pellet set, an amount of magnetic nanofiller, an amount of lubricant, and an amount of antioxidant based on the polytetrafluoroethylene resin pellet set, mix the clean resin pellet set, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant to obtain a mixed material, and set a pre-built extruder using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time; The material extrusion molding module is used to perform an extrusion operation on the mixed material using a pre-set extruder to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port; a sewing thread stretching optimization module, configured to perform the following operations on each of the formed sewing threads in the formed sewing thread set: identifying a stretching area, setting a stretching environment in the stretching area, performing a stretching operation on the formed sewing thread using preset stretching parameters and the stretching environment, monitoring the formed sewing thread in real time, obtaining a stretching ratio and an initial stretched sewing thread, calculating the crystallinity of the initial stretched sewing thread based on the stretching ratio, the extrusion temperature, and the extrusion time, comparing the crystallinity with a preset standard crystallinity threshold, and if the crystallinity is less than the preset standard crystallinity threshold, adjusting the stretching parameters to obtain an adjusted stretching parameter, using the adjusted stretching parameter as the stretching parameter, and returning to the step of performing the stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining optimal stretching parameters and an optimal stretched sewing thread; The sewing thread process optimization module is used to heat-set the optimal stretch sewing thread to obtain the optimal sewing thread, summarize the optimal sewing thread and the optimal stretching parameters, obtain the optimal sewing thread set and the optimal stretching parameter set, build a stretching parameter database based on the optimal stretching parameter set, and complete the preparation process optimization of polytetrafluoroethylene sewing thread based on the optimal sewing thread set and the stretching parameter database.

[0016] In order to solve the above problem, the present invention further provides an electronic device, comprising: a memory storing at least one instruction; The processor executes the instructions stored in the memory to implement the above-mentioned method for optimizing the preparation process of polytetrafluoroethylene sewing thread.

[0017] In order to solve the above problems, the present invention also provides a computer-readable storage medium, which stores at least one instruction, and the at least one instruction is executed by a processor in an electronic device to implement the above-mentioned preparation process optimization method based on polytetrafluoroethylene sewing thread.

[0018] The present invention is to solve the problems described in the background technology. The present invention receives sewing thread preparation instructions and obtains polytetrafluoroethylene resin particle sets according to the sewing thread preparation instructions. The present invention ensures that production activities are accurately matched with actual needs by receiving preparation instructions, avoids blind production, and improves production efficiency and resource utilization. Based on the polytetrafluoroethylene resin particle set, a clean resin particle set, a magnetic nanofiller dosage, a lubricant dosage and an antioxidant dosage are obtained. The magnetic nanofiller of the present invention can give the sewing thread special magnetic properties. The lubricant helps to reduce the friction of the material during processing, making the extrusion process smoother and reducing equipment wear. The antioxidant can improve the antioxidant ability of the sewing thread and extend its service life. The clean resin particle set, the magnetic nanofiller dosage, The lubricant amount and the antioxidant amount are mixed to obtain a mixed material, and a pre-built extruder is set using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time. The present invention can make the preset extruder work in the best state by presetting the extrusion temperature and extrusion time, thereby ensuring that the mixed material is fully plasticized during the extrusion process, obtaining a good molding effect, and improving the molding quality of the sewing thread. The preset extruder is used to perform an extrusion operation on the mixed material to obtain a molded sewing thread set, wherein the preset extruder includes: a feed port and a discharge port. The preset extruder extrude the mixed material through a specific mold to form it into the shape of a sewing thread, thereby realizing the transformation from the raw material to the finished product shape, completing the preliminary molding process, and Each forming sewing thread in the forming sewing thread set performs the following operations: confirming the stretching area, setting the stretching environment in the stretching area, performing the stretching operation on the forming sewing thread using the preset stretching parameters and the stretching environment, and monitoring the forming sewing thread in real time to obtain the stretching ratio and the initial stretched sewing line. The stretching operation of the present invention can orient the polytetrafluoroethylene molecular chains along the stretching direction, thereby improving the mechanical properties of the sewing thread such as strength, modulus and wear resistance. The crystallinity of the initial stretched sewing thread is calculated based on the stretching ratio, extrusion temperature and extrusion time, and the crystallinity is compared with the preset standard crystallinity threshold. The crystallinity of the present invention is one of the important indicators for measuring the performance of polytetrafluoroethylene sewing thread. By calculating the crystallinity and comparing it with the standard threshold, the quality of the sewing thread can be evaluated. The requirements are met, providing a basis for subsequent adjustments. If the crystallinity is less than the preset standard crystallinity threshold, the stretching parameters are adjusted to obtain the adjusted stretching parameters. The adjusted stretching parameters are used as the stretching parameters, and the step of performing the stretching operation on the molded sewing thread using the preset stretching parameters and the stretching environment is returned to, until the crystallinity is greater than or equal to the preset standard crystallinity threshold, and the optimal stretching parameters and the optimal stretching sewing thread are obtained. The present invention continuously adjusts the stretching parameters to make the crystallinity of the sewing thread meet the standard requirements, thereby further improving the performance of the sewing thread and ensuring the stability and reliability of the product quality. The optimal stretching sewing thread is heat-set to obtain the optimal sewing thread, and the optimal sewing thread and the optimal stretching parameters are summarized to obtain the optimal sewing thread set and the optimal stretching parameter set.The heat setting method of the present invention can make the molecular orientation and crystal structure formed during the stretching process of the sewing thread more stable, preventing deformation and performance changes during subsequent use, further improving the dimensional stability and performance stability of the sewing thread. A stretching parameter database is constructed based on the optimal stretching parameter set. The preparation process of polytetrafluoroethylene sewing thread is optimized based on the optimal sewing thread set and the stretching parameter database. The present invention constructs a stretching parameter database to store and manage the optimal stretching parameters, realizing the accumulation and inheritance of production knowledge, which is conducive to the continuous optimization of production processes by enterprises, improving production efficiency and product quality. Therefore, the present invention can improve the quality and performance of polytetrafluoroethylene sewing thread and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic flow chart of a method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to an embodiment of the present invention; Figure 2 A functional module diagram of a system for optimizing the preparation process of polytetrafluoroethylene sewing thread according to an embodiment of the present invention; Figure 3 A schematic structural diagram of an electronic device for implementing the method for optimizing the preparation process of polytetrafluoroethylene sewing thread provided in one embodiment of the present invention.

[0020] Description of reference numerals: 1. Electronic device; 10. Processor; 11. Memory; 12. Bus; 100. Preparation process optimization system based on polytetrafluoroethylene sewing thread; 101. Raw material mixing module; 102. Material extrusion molding module; 103. Sewing thread stretching optimization module; 104. Sewing thread process optimization module.

[0021] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The present embodiment provides a method for optimizing the production process of polytetrafluoroethylene (PTFE) sewing thread. The method can be executed by at least one of the electronic devices (1) configured to execute the method provided in the present embodiment, such as a server or a terminal. In other words, the method can be executed by software or hardware installed on a terminal or server device, where the software can be a blockchain platform. The server can include, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0024] Reference Figure 1 FIG. 1 is a flow chart of a method for optimizing a preparation process of a polytetrafluoroethylene sewing thread according to an embodiment of the present invention. In this embodiment, the method for optimizing a preparation process of a polytetrafluoroethylene sewing thread comprises: S1. Receive a sewing thread preparation instruction, and obtain a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction.

[0025] It should be explained that sewing thread preparation instructions are manually issued to guide the production process of polytetrafluoroethylene sewing thread. A polytetrafluoroethylene resin pellet set refers to a collection of multiple polytetrafluoroethylene resin pellets. Polytetrafluoroethylene resin pellets are spherical or nearly spherical particles made of polytetrafluoroethylene. This shape facilitates uniform flow and dispersion of the pellets during mixing and extrusion, ensuring uniform quality of the subsequent sewing thread.

[0026] S2. Obtaining the amount of clean resin particles, magnetic nanofiller, lubricant, and antioxidant based on the polytetrafluoroethylene resin particles.

[0027] In detail, the method of obtaining the cleaning resin particles, the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant based on the polytetrafluoroethylene resin particles includes: Screening the polytetrafluoroethylene resin particle set to obtain a high-quality polytetrafluoroethylene resin particle set, wherein the high-quality polytetrafluoroethylene resin particle set includes a plurality of high-quality polytetrafluoroethylene resin particles; Performing a pretreatment operation on each fine polytetrafluoroethylene resin particle in the fine polytetrafluoroethylene resin particle set to obtain a clean resin particle set, wherein the pretreatment operation includes: a washing operation and a drying operation; Determine the ratio of magnetic nanofiller, lubricant and antioxidant, and obtain the resin weight of the clean resin pellets; The amount of magnetic nanofiller, lubricant and antioxidant is calculated based on the resin weight, magnetic nanofiller ratio, lubricant ratio and antioxidant ratio.

[0028] It should be explained that the pretreatment operation performed on each particle of the high-quality polytetrafluoroethylene resin in the high-quality polytetrafluoroethylene resin collection refers to cleaning each particle of the high-quality polytetrafluoroethylene resin in the high-quality polytetrafluoroethylene resin collection with a solvent, and then hot-air drying the cleaned high-quality polytetrafluoroethylene resin. For example, the solvent is deionized water or an organic solvent. The clean resin particle collection refers to a collection of polytetrafluoroethylene resin particles that have been cleaned and dried. The determination of the magnetic nanofiller ratio, lubricant ratio and antioxidant ratio refers to determining the magnetic nanofiller ratio, lubricant ratio and antioxidant ratio based on previous experimental studies. The magnetic nanofiller ratio refers to the mass percentage of the magnetic nanofiller in the mixed material. Nanofillers can improve the thermal stability of the material, allowing it to maintain better performance in a high-temperature environment. The lubricant ratio refers to the mass percentage of the lubricant in the mixed material. The lubricant can improve the fluidity of the mixed material, making it easier to form during extrusion and stretching, and can prevent the resin particles from sticking together during processing, thereby ensuring the uniformity of the mixed material. The antioxidant ratio refers to the mass percentage of the antioxidant in the mixed material. The antioxidant can delay the oxidation reaction of the sewing thread during use, extending its service life, while maintaining the mechanical properties and chemical stability of the sewing thread and preventing performance degradation due to oxidation. The resin weight of the clean resin pellets is obtained by weighing the clean resin pellets using an electronic balance.

[0029] In detail, the polytetrafluoroethylene resin particle collection is screened to obtain a high-quality polytetrafluoroethylene resin particle collection, comprising: Setting a sieve aperture, and using the sieve aperture to perform particle size screening on the polytetrafluoroethylene resin pellets to obtain a secondary polytetrafluoroethylene resin pellet, wherein the secondary polytetrafluoroethylene resin pellet comprises a plurality of secondary polytetrafluoroethylene resin pellets; Extracting secondary polytetrafluoroethylene resin from the secondary polytetrafluoroethylene resin in sequence, and performing the following operations on the extracted secondary polytetrafluoroethylene resin: performing purity testing on the secondary polytetrafluoroethylene resin to obtain a purity test value, and calculating the impurity content based on the purity test value; Determine whether the impurity content is within the preset standard impurity content range; If the impurity content is within the preset standard impurity content range, the secondary polytetrafluoroethylene resin is used as the high-purity secondary resin, and the molecular weight of the high-purity secondary resin is tested to obtain the molecular weight of the polytetrafluoroethylene; Determine whether the molecular weight of polytetrafluoroethylene is within a preset reference molecular weight range; If it is confirmed that the molecular weight of the polytetrafluoroethylene is within the preset reference molecular weight range, the high-purity secondary resin is used as the superior polytetrafluoroethylene resin; If the impurity content is not within the preset standard impurity content range, the secondary polytetrafluoroethylene resin is removed from the secondary polytetrafluoroethylene resin set to obtain an updated polytetrafluoroethylene resin set, and the updated polytetrafluoroethylene resin set is used as the secondary polytetrafluoroethylene resin set, and the process returns to the step of sequentially extracting secondary polytetrafluoroethylene resin from the secondary polytetrafluoroethylene resin set until the secondary polytetrafluoroethylene resin set is empty. The fine-grained polytetrafluoroethylene resin is aggregated to obtain a fine-grained polytetrafluoroethylene resin set.

[0030] It should be explained that the sieve aperture refers to the diameter of the holes in the sieve. For example, the sieve aperture is 150 microns. The step of obtaining the secondary PTFE resin aggregate after particle size separation using the sieve aperture comprises placing the PTFE resin aggregate on a sieve and vibrating the sieve to allow particles smaller than the sieve aperture to pass through the sieve, while larger particles remain. The particles that pass through the sieve are referred to as the secondary PTFE resin aggregate. Purity testing of the secondary PTFE resin refers to purity testing of the secondary PTFE resin using infrared spectroscopy. The purity test value refers to the purity percentage of the PTFE measured by infrared spectroscopy. The standard impurity content range refers to a pre-set impurity content range used to determine whether the resin particles are within the impurity content range. High-purity secondary resin refers to secondary PTFE resin whose impurity content falls within the pre-set standard impurity content range after purity testing. The reference molecular weight range refers to a pre-set molecular weight range of PTFE used to determine whether the molecular weight of the resin particles falls within this range. For example, the reference molecular weight range is 500,000 to 1,000,000. High-quality PTFE resin refers to resin particles whose impurity content and molecular weight, after purity and molecular weight testing, are within the standard impurity content range and the reference molecular weight range. An updated PTFE resin set is the set of sub-granular PTFE resins remaining after removing sub-granular PTFE resins whose impurity content is not within the preset standard impurity content range. A high-quality PTFE resin set is the set consisting of all high-quality PTFE resins.

[0031] It is understandable that the step of calculating the impurity content based on the purity detection value is: impurity content = 100% purity - purity detection value.

[0032] In detail, the calculation of the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant based on the weight of the resin, the ratio of magnetic nanofiller, the ratio of lubricant and the ratio of antioxidant includes: Calculate the average particle size of the secondary polytetrafluoroethylene resin set, obtain the ambient humidity and ambient temperature, and calculate the amount of magnetic nanofiller based on the resin weight, polytetrafluoroethylene molecular weight, magnetic nanofiller ratio, and ambient temperature. The calculation formula for the amount of magnetic nanofiller is as follows: in, Indicates the amount of magnetic nanofiller used, Indicates the resin weight, Indicates the ratio of magnetic nanofiller, Indicates the average particle size of the resin particles, Indicates the ambient temperature, Indicates the molecular weight of polytetrafluoroethylene, Indicates the preset reference molecular weight; The lubricant dosage is calculated based on the resin weight, PTFE molecular weight, lubricant ratio and ambient humidity. The antioxidant dosage is calculated based on the resin weight, antioxidant ratio, PTFE molecular weight, ambient temperature and ambient humidity.

[0033] It should be explained that the average particle size of the resin particle size refers to the average value of the particle size of all sub-particle polytetrafluoroethylene resins. The acquisition of ambient humidity and ambient temperature refers to the acquisition of ambient humidity and ambient temperature using a temperature sensor and a humidity sensor. The amount of magnetic nanofiller refers to the amount of magnetic nanofiller in the mixed material. The amount of lubricant refers to the amount of lubricant in the mixed material. The amount of antioxidant refers to the amount of antioxidant in the mixed material. The formula for calculating the amount of lubricant in the step of acquiring the amount of lubricant based on the resin weight, polytetrafluoroethylene molecular weight, lubricant ratio and ambient humidity is as follows: in, Indicates the amount of lubricant used, Indicates lubricant ratio, Indicates the ambient humidity.

[0034] In detail, the antioxidant dosage is calculated based on the resin weight, antioxidant ratio, polytetrafluoroethylene molecular weight, ambient temperature and ambient humidity, including: The antioxidant dosage is calculated based on the resin weight, polytetrafluoroethylene molecular weight, antioxidant ratio, ambient temperature and ambient humidity. The antioxidant dosage calculation formula is as follows: in, Indicates the amount of antioxidants used, Indicates the antioxidant ratio.

[0035] S3. Mixing the clean resin pellets, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant to obtain a mixed material, and setting a pre-built extruder using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time.

[0036] It should be explained that the mixing of the cleaning resin particles, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant refers to mixing the cleaning resin particles, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant using a mixing device. For example, the mixing device is a high-speed mixer. The pre-set extruder refers to an extruder that has been set using extrusion parameters. The extrusion temperature refers to the temperature at which the mixture is heated to a molten state in the extruder during the extrusion process. The extrusion time refers to the time it takes for the mixture to be fed into the extruder and then extruded into a mold.

[0037] S4. Utilize a pre-set extruder to extrude the mixed material to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port.

[0038] It should be explained that the step of performing the extrusion operation on the mixed material using the preset extruder is: gradually melting the mixed material in the heating section of the extruder to form a melt, and extruding the melt through a die to form a linear molded sewing thread.

[0039] S5. Perform the following operations on each formed sewing line in the formed sewing line set: identify a stretching area, set a stretching environment in the stretching area, perform a stretching operation on the formed sewing line using preset stretching parameters and the stretching environment, and monitor the formed sewing line in real time to obtain a stretching ratio and an initial stretched sewing line.

[0040] In detail, setting the stretching environment in the stretching area includes: Prefabricated electrodes are installed at the feed port and the discharge port of the prefabricated extruder to obtain a plurality of initial electrode positions, the electric field strength is set according to the plurality of initial electrode positions, and the electric field strength is monitored in real time to obtain an electric field strength value; Determining whether the electric field strength value is within a preset electric field setting range; If the electric field strength value is not within the preset electric field setting interval, adjusting the multiple initial electrode positions to obtain multiple suitable electrode positions, using the multiple suitable electrode positions as the multiple initial electrode positions, and returning to the step of setting the electric field strength according to the multiple initial electrode positions until the electric field strength value is within the preset electric field setting interval; If the electric field strength value is within a preset electric field setting interval, a pre-built magnetic field generator is set using preset magnetic field parameters to obtain a magnetic field regulator; A magnetic field regulator is installed in the stretching area to obtain a magnetic field area, and the magnetic field area is monitored in real time to obtain a magnetic field strength value, and to determine whether the magnetic field strength value is within a preset magnetic field setting range; If the magnetic field strength value is not within the preset magnetic field setting range, the magnetic field parameters are adjusted to obtain the adjusted magnetic field parameters, and the adjusted magnetic field parameters are used as the magnetic field parameters, and the step of setting the pre-constructed magnetic field generator using the preset magnetic field parameters is returned to until the magnetic field strength value is within the preset magnetic field setting range to obtain a stretching environment.

[0041] It should be explained that electrodes are conductive devices used to apply an electric field. In the stretching zone, electrodes are used to apply an electric field between the feed and discharge ports of the pre-set extruder. By applying the electric field, the electrodes influence the molecular chain alignment of the polytetrafluoroethylene resin, thereby improving the material's crystallinity and mechanical properties. The initial electrode position refers to the position of the electrodes relative to the pre-set feed and discharge ports of the extruder during installation. The electric field strength refers to the strength of the electric field. Setting the electric field strength based on multiple initial electrode positions refers to adjusting the voltage between the electrodes based on the multiple initial electrode positions and calculating the electric field strength by dividing the voltage by the distance between the electrodes. The electric field strength value refers to the real-time monitored value of the electric field strength. The electric field setting interval refers to the pre-set electric field interval. The optimal electrode position refers to the electrode position that, after adjustment, stabilizes the electric field strength value within the pre-set electric field setting interval. A magnetic field generator refers to a device used to generate a magnetic field. Magnetic field parameters include magnetic field strength and magnetic field direction. The magnetic field strength value refers to the real-time monitored value of the magnetic field strength. The magnetic field setting interval refers to the pre-set magnetic field interval. The adjustment of magnetic field parameters refers to increasing or decreasing the number of turns of the coil on the magnetic field generator. The adjustment of magnetic field parameters refers to the parameters obtained after the magnetic field parameters are adjusted.

[0042] S6. Calculating the crystallinity of the initially stretched sewing thread according to the stretching ratio, extrusion temperature, and extrusion time, and comparing the crystallinity with a preset standard crystallinity threshold.

[0043] In detail, the calculation of the crystallinity of the initially stretched sewing thread according to the stretch ratio, extrusion temperature and extrusion time includes: The melting enthalpy of the formed sewing thread set is obtained. The crystallinity of the initial stretched sewing thread is calculated based on the melting enthalpy, polytetrafluoroethylene molecular weight, stretch ratio, extrusion temperature, and extrusion time. The calculation formula is as follows: in, Indicates the crystallinity, represents the melting enthalpy, represents the preset complete crystallization melting enthalpy, Indicates the stretch ratio, Indicates the extrusion temperature, Indicates the preset melting point of PTFE, It means squeezing out time. Indicates the preset reference extrusion time.

[0044] It should be explained that the degree of crystallinity refers to the proportion of the crystalline portion in the initially stretched sewing thread. The melting enthalpy refers to the amount of heat absorbed when the initially stretched sewing thread melts from a solid state to a liquid state, usually expressed in joules per gram. The fully crystallized melting enthalpy refers to the predetermined melting enthalpy of the PTFE sewing thread when it is fully crystallized. The reference molecular weight refers to a predetermined molecular weight value for comparison. The PTFE melting point refers to the predetermined temperature at which PTFE melts from a solid state to a liquid state. The reference extrusion time refers to a predetermined extrusion time value for comparison.

[0045] In detail, the step of obtaining the melting enthalpy of the formed sewing thread set includes: Obtain a sample sewing thread set from the formed sewing thread set, and calculate the sample weight of the sample sewing thread set; Set DSC test parameters, including temperature range, heating rate, and gas flow rate; Performing a heating test on a sample sewing thread set according to DSC test parameters to obtain a heat flow curve, and determining the curve integral area according to the heat flow curve, wherein the horizontal axis of the heat flow curve is temperature and the vertical axis of the heat flow curve is heat flow value; The melting enthalpy of the sample is calculated according to the integral area of ​​the curve and the sample weight, and the melting enthalpy of the sample is used as the melting enthalpy of the initial stretched sewing thread.

[0046] It should be explained that the sample sewing thread set refers to a group of samples randomly selected from the molded sewing thread set, which is used to represent the entire molded sewing thread set for testing. The sample weight refers to the total weight of the sample sewing thread set. Performing a heating test on the sample sewing thread set according to the DSC test parameters refers to placing the sample sewing thread into the crucible of the DSC device, covering the sample with the crucible cover to ensure that the sample is not oxidized during the test, starting the DSC device, and performing a heating test on the sample sewing thread set using the DSC test parameters, and generating a heat flow curve during the heating test. The calculation of the sample melting enthalpy based on the integral area of ​​the curve and the sample weight refers to obtaining the sample melting enthalpy by dividing the integral area of ​​the curve by the sample weight. The integral area of ​​the curve refers to the total heat absorbed by the sample melting enthalpy during the melting process.

[0047] In detail, determining the curve integral area according to the heat flow curve includes: Obtaining the melting start and end points from the heat flow curve, obtaining the melting interval based on the melting start and end points, and dividing the melting interval using a preset interval width to obtain a segmented interval group; For each segmented interval in the segmented interval group, perform the following operations: According to the segment interval, the segment starting point and segment end point are determined, and the starting point heat flow value and the end point heat flow value are determined according to the segment starting point and segment end point, wherein the segment starting point corresponds to the starting point heat flow value one-to-one, and the segment end point corresponds to the end point heat flow value one-to-one; The area of ​​the segmented interval is calculated based on the interval width, the starting point heat flow value, and the ending point heat flow value. The calculation formula for the segmented interval area is as follows: in, Indicates the first The area of ​​the segmented interval, represents the starting point heat flow value, represents the end point heat flow value, Indicates the width of the interval; Summarize the segmented interval areas to obtain segmented interval area groups, and add up the segmented interval area groups to obtain the curve integral area.

[0048] It should be explained that the melting start point refers to the temperature at which the heat flow value changes from zero to a positive value on the heat flow curve. The melting end point refers to the temperature at which the slope of the heat flow curve changes from a positive value to zero. For example, if there are two adjacent temperatures on the heat flow curve: 90 and 100, and the slope of the heat flow curve is 0 at 90 and 1 at 100, then the temperature 100 is the melting start point.

[0049] It should be explained that the melting interval refers to the temperature range from the melting start point to the melting end point. The interval width refers to the pre-set temperature range of each small segment when the melting interval is divided into multiple small segments. The segmented interval group refers to the set consisting of all segmented intervals. The segmented starting point refers to the starting temperature point of each segmented interval. The segmented end point refers to the ending temperature point of each segmented interval. The starting point heat flow value refers to the heat flow value at the starting point of the segment. The end point heat flow value refers to the heat flow value at the end point of the segment. The curve integral area refers to the sum of the areas of multiple segmented intervals in the segmented interval area group.

[0050] S7. If the crystallinity is less than the preset standard crystallinity threshold, the stretching parameters are adjusted to obtain the adjusted stretching parameters, and the adjusted stretching parameters are used as the stretching parameters. The process returns to the step of performing the stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining the optimal stretching parameters and the optimal stretching sewing thread.

[0051] It should be explained that the standard crystallinity threshold refers to the minimum crystallinity value pre-set during the production process to ensure the quality and performance of sewing thread. Adjusted stretching parameters refer to the stretching parameters used for the next stretching operation after adjustment. The purpose of adjusting stretching parameters is to improve crystallinity. Optimal stretching parameters refer to the stretching parameters that, after multiple adjustments and testing, enable the crystallinity to reach or exceed the standard crystallinity threshold. Optimal stretch sewing thread refers to sewing thread produced under the optimal stretching parameters.

[0052] S8. Heat-setting the optimal stretch sewing thread to obtain the optimal sewing thread, summarizing the optimal sewing threads and the optimal stretching parameters to obtain an optimal sewing thread set and an optimal stretching parameter set.

[0053] It should be explained that heat-setting the optimal stretch sewing thread to obtain the optimal sewing thread refers to heat-setting the optimal stretch sewing thread using a heat-setting device and cooling the heat-set sewing thread to obtain the optimal sewing thread. The optimal sewing thread refers to the sewing thread that has been heat-set. The optimal sewing thread set refers to the set of all optimal sewing threads. The optimal stretch parameter set refers to the set of all optimal stretch parameters.

[0054] S9. Construct a stretching parameter database based on the optimal stretching parameter set, and complete the preparation process optimization of polytetrafluoroethylene sewing thread based on the optimal sewing thread set and the stretching parameter database.

[0055] It should be explained that the step of constructing a stretching parameter database based on the optimal stretching parameter set is: determining a database construction tool, and determining a database table structure according to the database construction tool and the optimal stretching parameter set, wherein the database table structure includes: stretch ratio, extrusion temperature, extrusion time and crystallinity; The optimal stretching parameter set is imported into a database table structure to obtain a stretching parameter database. For example, the database construction tool is Microsoft Excel, Access, SQL Server, etc.

[0056] The present invention is to solve the problems described in the background technology. The present invention receives sewing thread preparation instructions and obtains polytetrafluoroethylene resin particle sets according to the sewing thread preparation instructions. By receiving the preparation instructions, the present invention ensures that production activities are accurately matched with actual needs, avoids blind production, and improves production efficiency and resource utilization. Based on the polytetrafluoroethylene resin particle set, a clean resin particle set, a magnetic nanofiller dosage, a lubricant dosage, and an antioxidant dosage are obtained. The magnetic nanofiller of the present invention can give the sewing thread special magnetic properties. The lubricant helps to reduce the friction of the material during the processing process, making the extrusion process smoother and reducing equipment wear. The antioxidant can improve the antioxidant ability of the sewing thread and extend its service life. The clean resin particle set and the magnetic nanofiller dosage are reduced. , lubricant dosage and antioxidant dosage are mixed to obtain a mixed material, and a pre-built extruder is set using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time. The present invention can make the extruder work in the best state by pre-setting the extrusion temperature and extrusion time, thereby ensuring that the mixed material is fully plasticized during the extrusion process, obtaining a good molding effect, and improving the molding quality of the sewing thread. The mixed material is extruded using the preset extruder to obtain a molded sewing thread set, wherein the preset extruder includes: a feed port and a discharge port. The extruder extrude the mixed material through a specific mold to form it into the shape of a sewing thread, thereby realizing the transformation from raw material to finished product shape, completing the preliminary molding process, and Each formed sewing thread in the sewing thread collection performs the following operations: confirming the stretching area, setting the stretching environment in the stretching area, performing the stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment, and monitoring the formed sewing thread in real time to obtain the stretching ratio and the initial stretched sewing thread. The stretching operation of the present invention can orient the polytetrafluoroethylene molecular chains along the stretching direction, thereby improving the mechanical properties of the sewing thread such as strength, modulus and wear resistance. The crystallinity of the initial stretched sewing thread is calculated based on the stretching ratio, extrusion temperature and extrusion time, and the crystallinity is compared with the preset standard crystallinity threshold. The crystallinity of the present invention is one of the important indicators for measuring the performance of polytetrafluoroethylene sewing thread. By calculating the crystallinity and comparing it with the standard threshold, it is possible to evaluate whether the quality of the sewing thread meets the requirements. To meet the requirements, provide a basis for subsequent adjustments. If the crystallinity is less than the preset standard crystallinity threshold, the stretching parameters are adjusted to obtain the adjusted stretching parameters. The adjusted stretching parameters are used as the stretching parameters, and the step of performing the stretching operation on the molded sewing thread using the preset stretching parameters and the stretching environment is returned to, until the crystallinity is greater than or equal to the preset standard crystallinity threshold, and the optimal stretching parameters and the optimal stretching sewing thread are obtained. The present invention continuously adjusts the stretching parameters to make the crystallinity of the sewing thread meet the standard requirements, thereby further improving the performance of the sewing thread and ensuring the stability and reliability of the product quality. The optimal stretching sewing thread is heat-set to obtain the optimal sewing thread, and the optimal sewing thread and the optimal stretching parameters are summarized to obtain the optimal sewing thread set and the optimal stretching parameter set.The heat setting method of the present invention can make the molecular orientation and crystal structure formed during the stretching process of the sewing thread more stable, preventing deformation and performance changes during subsequent use, further improving the dimensional stability and performance stability of the sewing thread. A stretching parameter database is constructed based on the optimal stretching parameter set. The preparation process of polytetrafluoroethylene sewing thread is optimized based on the optimal sewing thread set and the stretching parameter database. The present invention constructs a stretching parameter database to store and manage the optimal stretching parameters, realizing the accumulation and inheritance of production knowledge, which is conducive to the continuous optimization of production processes by enterprises, improving production efficiency and product quality. Therefore, the present invention can improve the quality and performance of polytetrafluoroethylene sewing thread and reduce production costs.

[0057] like Figure 2 1 is a functional module diagram of a system for optimizing the preparation process of polytetrafluoroethylene sewing thread according to an embodiment of the present invention.

[0058] The polytetrafluoroethylene sewing thread preparation process optimization system 100 of the present invention can be installed in an electronic device 1. Depending on the functions to be implemented, the polytetrafluoroethylene sewing thread preparation process optimization system 100 can include a raw material mixing module 101, a material extrusion molding module 102, a sewing thread stretching optimization module 103, and a sewing thread process optimization module 104. The modules of the present invention, also referred to as units, refer to a series of computer program segments that can be executed by the processor 10 of the electronic device 1 and can perform fixed functions, and are stored in the memory 11 of the electronic device 1. The raw material mixing module 101 is configured to receive a sewing thread preparation instruction, obtain a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction, obtain a clean resin pellet set, an amount of magnetic nanofiller, an amount of lubricant, and an amount of antioxidant based on the polytetrafluoroethylene resin pellet set, mix the clean resin pellet set, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant to obtain a mixed material, and set a pre-built extruder using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time; The material extrusion molding module 102 is used to perform an extrusion operation on the mixed material using a pre-set extruder to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port; The sewing thread stretching optimization module 103 is configured to perform the following operations on each of the formed sewing threads in the formed sewing thread set: identifying a stretching area, setting a stretching environment in the stretching area, performing a stretching operation on the formed sewing thread using preset stretching parameters and the stretching environment, and monitoring the formed sewing thread in real time to obtain a stretching ratio and an initial stretched sewing line, calculating the crystallinity of the initial stretched sewing line according to the stretching ratio, the extrusion temperature, and the extrusion time, comparing the crystallinity with a preset standard crystallinity threshold, and if the crystallinity is less than the preset standard crystallinity threshold, adjusting the stretching parameters to obtain an adjusted stretching parameter, using the adjusted stretching parameter as the stretching parameter, and returning to the step of performing the stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining optimal stretching parameters and an optimal stretched sewing line; The sewing thread process optimization module 104 is used to heat-set the optimal stretch sewing thread to obtain the optimal sewing thread, summarize the optimal sewing thread and the optimal stretching parameters to obtain the optimal sewing thread set and the optimal stretching parameter set, build a stretching parameter database based on the optimal stretching parameter set, and complete the preparation process optimization of polytetrafluoroethylene sewing thread based on the optimal sewing thread set and the stretching parameter database.

[0059] In detail, the modules in the polytetrafluoroethylene sewing thread preparation process optimization system 100 according to the embodiment of the present invention are used in the same manner as above. Figure 1 The same technical means as the preparation process optimization method of polytetrafluoroethylene sewing thread described in and can produce the same technical effects are not repeated here.

[0060] like Figure 3 1 is a schematic structural diagram of an electronic device 1 for implementing a method for optimizing a preparation process of polytetrafluoroethylene sewing thread according to an embodiment of the present invention.

[0061] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a program for optimizing a preparation process for polytetrafluoroethylene sewing thread.

[0062] The memory 11 includes at least one type of readable storage medium, including flash memory, a removable hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the memory 11 may be an internal storage unit of the electronic device 1, such as a removable hard disk of the electronic device 1. In other embodiments, the memory 11 may also be an external storage device of the electronic device 1, such as a plug-in removable hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. Furthermore, the memory 11 includes both internal storage units and external storage devices of the electronic device 1. The memory 11 can be used not only to store application software installed in the electronic device 1 and various data, such as the code of a program for optimizing the preparation process of polytetrafluoroethylene sewing thread, but also to temporarily store data that has been output or is about to be output.

[0063] In some embodiments, the processor 10 may be comprised of an integrated circuit, such as a single packaged integrated circuit or a plurality of packaged integrated circuits with the same or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and a combination of various control chips. The processor 10 is the control core (control unit) of the electronic device 1, connecting the various components of the electronic device 1 via various interfaces and circuits. It executes programs or modules stored in the memory 11 (e.g., a program for optimizing the preparation process of polytetrafluoroethylene sewing thread) and accesses data stored in the memory 11 to perform various functions and process data.

[0064] The bus 12 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus 12 may be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to enable communication between the memory 11 and at least one processor 10, etc.

[0065] Figure 3 Only the electronic device 1 having components is shown, and it can be understood by those skilled in the art that Figure 3The structure shown does not constitute a limitation on the electronic device 1 , and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0066] For example, although not shown, the electronic device 1 may further include a power supply (such as a battery) to power various components. Preferably, the power supply may be logically connected to the at least one processor 10 via a power management device, thereby enabling functions such as charging management, discharging management, and power consumption management through the power management device. The power supply may further include any components such as one or more DC or AC power supplies, a recharging device, a power failure detection circuit, a power converter or inverter, and a power status indicator. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which are not further described here.

[0067] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is generally used to establish a communication connection between the electronic device 1 and other electronic devices 1.

[0068] Optionally, the electronic device 1 may further include a user interface, which may be a display or an input unit (such as a keyboard). Optionally, the user interface may also be a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. The display may also be appropriately referred to as a display screen or a display unit, and is used to display information processed by the electronic device 1 and to display a visual user interface.

[0069] The program of the method for optimizing the preparation process of polytetrafluoroethylene sewing thread stored in the memory 11 of the electronic device 1 is a combination of multiple instructions. When running in the processor 10, it can achieve the following: receiving a sewing thread preparation instruction, and obtaining a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction; Based on the polytetrafluoroethylene resin particle set, the amount of cleaning resin particle set, the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant are obtained; The cleaning resin pellets, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant are mixed to obtain a mixed material, and a pre-built extruder is set using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time; The mixed material is extruded by a pre-set extruder to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port; Perform the following operations for each forming sewing line in the forming sewing line set: Identify a stretching area, set a stretching environment in the stretching area, perform a stretching operation on the formed sewing thread using preset stretching parameters and the stretching environment, and monitor the formed sewing thread in real time to obtain a stretching ratio and an initial stretched sewing line; calculating the crystallinity of the initially stretched sewing thread according to the stretch ratio, extrusion temperature and extrusion time, and comparing the crystallinity with a preset standard crystallinity threshold; If the crystallinity is less than a preset standard crystallinity threshold, adjusting the stretching parameters to obtain an adjusted stretching parameter, using the adjusted stretching parameter as the stretching parameter, and returning to the step of performing a stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining optimal stretching parameters and an optimally stretched sewing thread; Heat setting the optimal stretch sewing thread to obtain the optimal sewing thread, and summarizing the optimal sewing thread and the optimal stretching parameters to obtain the optimal sewing thread set and the optimal stretching parameter set; A stretching parameter database is constructed based on the optimal stretching parameter set, and the preparation process optimization of polytetrafluoroethylene sewing thread is completed based on the optimal sewing thread set and the stretching parameter database.

[0070] Specifically, the specific implementation method of the processor 10 for the above instructions can refer to Figures 1 to 3 The description of the relevant steps in the corresponding embodiments will not be repeated here.

[0071] Furthermore, if the modules / units integrated into the electronic device 1 are implemented as software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. The computer-readable storage medium may be volatile or non-volatile. For example, the computer-readable medium may include any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0072] The present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program. When the computer program is executed by the processor 10 of the electronic device 1, the computer program can implement: receiving a sewing thread preparation instruction, and obtaining a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction; Based on the polytetrafluoroethylene resin particle set, the amount of cleaning resin particle set, the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant are obtained; The cleaning resin pellets, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant are mixed to obtain a mixed material, and a pre-built extruder is set using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time; The mixed material is extruded by a pre-set extruder to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port; Perform the following operations for each forming sewing line in the forming sewing line set: Identify a stretching area, set a stretching environment in the stretching area, perform a stretching operation on the formed sewing thread using preset stretching parameters and the stretching environment, and monitor the formed sewing thread in real time to obtain a stretching ratio and an initial stretched sewing line; calculating the crystallinity of the initially stretched sewing thread according to the stretch ratio, extrusion temperature and extrusion time, and comparing the crystallinity with a preset standard crystallinity threshold; If the crystallinity is less than a preset standard crystallinity threshold, adjusting the stretching parameters to obtain an adjusted stretching parameter, using the adjusted stretching parameter as the stretching parameter, and returning to the step of performing a stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining optimal stretching parameters and an optimally stretched sewing thread; Heat setting the optimal stretch sewing thread to obtain the optimal sewing thread, and summarizing the optimal sewing thread and the optimal stretching parameters to obtain the optimal sewing thread set and the optimal stretching parameter set; A stretching parameter database is constructed based on the optimal stretching parameter set, and the preparation process optimization of polytetrafluoroethylene sewing thread is completed based on the optimal sewing thread set and the stretching parameter database.

[0073] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, systems and methods can be implemented in other ways. For example, the system embodiments described above are only exemplary, and actual implementations may have other division methods.

[0074] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed across multiple network elements. Some or all of the modules may be selected to achieve the purpose of the solution of this embodiment according to actual needs.

[0075] In addition, the functional modules in various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional modules.

[0076] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for optimizing the preparation process of polytetrafluoroethylene sewing thread, characterized in that: The method comprises: receiving a sewing thread preparation instruction, and obtaining a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction; Based on the polytetrafluoroethylene resin particle set, the amount of cleaning resin particle set, the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant are obtained; The cleaning resin pellets, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant are mixed to obtain a mixed material, and a pre-built extruder is set using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time; The mixed material is extruded by a pre-set extruder to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port; Perform the following operations for each forming sewing line in the forming sewing line set: Identify a stretching area, set a stretching environment in the stretching area, perform a stretching operation on the formed sewing thread using preset stretching parameters and the stretching environment, and monitor the formed sewing thread in real time to obtain a stretching ratio and an initial stretched sewing line; calculating the crystallinity of the initially stretched sewing thread according to the stretch ratio, extrusion temperature and extrusion time, and comparing the crystallinity with a preset standard crystallinity threshold; If the crystallinity is less than a preset standard crystallinity threshold, adjusting the stretching parameters to obtain an adjusted stretching parameter, using the adjusted stretching parameter as the stretching parameter, and returning to the step of performing a stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining optimal stretching parameters and an optimally stretched sewing thread; Heat setting the optimal stretch sewing thread to obtain the optimal sewing thread, and summarizing the optimal sewing thread and the optimal stretching parameters to obtain the optimal sewing thread set and the optimal stretching parameter set; A stretching parameter database is constructed based on the optimal stretching parameter set, and the preparation process optimization of polytetrafluoroethylene sewing thread is completed based on the optimal sewing thread set and the stretching parameter database.

2. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 1, wherein: The method of obtaining the cleaning resin particle set, the amount of magnetic nanofiller, the amount of lubricant and the amount of antioxidant based on the polytetrafluoroethylene resin particle set includes: Screening the polytetrafluoroethylene resin particle set to obtain a high-quality polytetrafluoroethylene resin particle set, wherein the high-quality polytetrafluoroethylene resin particle set includes a plurality of high-quality polytetrafluoroethylene resin particles; Performing a pretreatment operation on each fine polytetrafluoroethylene resin particle in the fine polytetrafluoroethylene resin particle set to obtain a clean resin particle set, wherein the pretreatment operation includes: a washing operation and a drying operation; Determine the ratio of magnetic nanofiller, lubricant and antioxidant, and obtain the resin weight of the clean resin pellets; The amount of magnetic nanofiller, lubricant and antioxidant is calculated based on the resin weight, magnetic nanofiller ratio, lubricant ratio and antioxidant ratio.

3. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 2, wherein: The polytetrafluoroethylene resin particle collection is screened to obtain a high-quality polytetrafluoroethylene resin particle collection, comprising: Setting a sieve aperture, and using the sieve aperture to perform particle size screening on the polytetrafluoroethylene resin pellets to obtain a secondary polytetrafluoroethylene resin pellet, wherein the secondary polytetrafluoroethylene resin pellet comprises a plurality of secondary polytetrafluoroethylene resin pellets; Secondary polytetrafluoroethylene resins are sequentially extracted from the secondary polytetrafluoroethylene resins, and the following operations are performed on the extracted secondary polytetrafluoroethylene resins: Performing a purity test on the secondary polytetrafluoroethylene resin to obtain a purity test value, and calculating the impurity content based on the purity test value; Determine whether the impurity content is within the preset standard impurity content range; If the impurity content is within the preset standard impurity content range, the secondary polytetrafluoroethylene resin is used as the high-purity secondary resin, and the molecular weight of the high-purity secondary resin is tested to obtain the molecular weight of the polytetrafluoroethylene; Determine whether the molecular weight of polytetrafluoroethylene is within a preset reference molecular weight range; If it is confirmed that the molecular weight of the polytetrafluoroethylene is within the preset reference molecular weight range, the high-purity secondary resin is used as the superior polytetrafluoroethylene resin; If the impurity content is not within the preset standard impurity content range, the secondary polytetrafluoroethylene resin is removed from the secondary polytetrafluoroethylene resin set to obtain an updated polytetrafluoroethylene resin set, and the updated polytetrafluoroethylene resin set is used as the secondary polytetrafluoroethylene resin set, and the process returns to the step of sequentially extracting secondary polytetrafluoroethylene resin from the secondary polytetrafluoroethylene resin set until the secondary polytetrafluoroethylene resin set is empty. The fine-grained polytetrafluoroethylene resin is aggregated to obtain a fine-grained polytetrafluoroethylene resin set.

4. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 3, wherein: The calculation of the amount of magnetic nano-filler, the amount of lubricant and the amount of antioxidant according to the resin weight, the ratio of magnetic nano-filler, the ratio of lubricant and the ratio of antioxidant includes: Calculate the average particle size of the secondary polytetrafluoroethylene resin set, obtain the ambient humidity and ambient temperature, and calculate the amount of magnetic nanofiller based on the resin weight, polytetrafluoroethylene molecular weight, magnetic nanofiller ratio, and ambient temperature. The calculation formula for the amount of magnetic nanofiller is as follows: in, Indicates the amount of magnetic nanofiller used, Indicates the resin weight, Indicates the ratio of magnetic nanofiller, Indicates the average particle size of the resin particles, Indicates the ambient temperature, Indicates the molecular weight of polytetrafluoroethylene, Indicates the preset reference molecular weight; The lubricant dosage is calculated based on the resin weight, PTFE molecular weight, lubricant ratio and ambient humidity. The antioxidant dosage is calculated based on the resin weight, antioxidant ratio, PTFE molecular weight, ambient temperature and ambient humidity.

5. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 4, wherein: The antioxidant dosage is calculated based on the resin weight, antioxidant ratio, polytetrafluoroethylene molecular weight, ambient temperature and ambient humidity, including: The antioxidant dosage is calculated based on the resin weight, polytetrafluoroethylene molecular weight, antioxidant ratio, ambient temperature and ambient humidity. The antioxidant dosage calculation formula is as follows: in, Indicates the amount of antioxidants used, Indicates the antioxidant ratio.

6. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 5, characterized in that: The step of setting a stretching environment in the stretching area includes: Prefabricated electrodes are installed at the feed port and the discharge port of the prefabricated extruder to obtain a plurality of initial electrode positions, the electric field strength is set according to the plurality of initial electrode positions, and the electric field strength is monitored in real time to obtain an electric field strength value; Determining whether the electric field strength value is within a preset electric field setting range; If the electric field strength value is not within the preset electric field setting interval, adjusting the multiple initial electrode positions to obtain multiple suitable electrode positions, using the multiple suitable electrode positions as the multiple initial electrode positions, and returning to the step of setting the electric field strength according to the multiple initial electrode positions until the electric field strength value is within the preset electric field setting interval; If the electric field strength value is within a preset electric field setting interval, a pre-built magnetic field generator is set using preset magnetic field parameters to obtain a magnetic field regulator; A magnetic field regulator is installed in the stretching area to obtain a magnetic field area, and the magnetic field area is monitored in real time to obtain a magnetic field strength value, and to determine whether the magnetic field strength value is within a preset magnetic field setting range; If the magnetic field strength value is not within the preset magnetic field setting range, the magnetic field parameters are adjusted to obtain the adjusted magnetic field parameters, and the adjusted magnetic field parameters are used as the magnetic field parameters, and the step of setting the pre-constructed magnetic field generator using the preset magnetic field parameters is returned to until the magnetic field strength value is within the preset magnetic field setting range to obtain a stretching environment.

7. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 6, wherein: The method of calculating the crystallinity of the initially stretched sewing thread according to the stretch ratio, extrusion temperature and extrusion time comprises: The melting enthalpy of the formed sewing thread set is obtained. The crystallinity of the initial stretched sewing thread is calculated based on the melting enthalpy, polytetrafluoroethylene molecular weight, stretch ratio, extrusion temperature, and extrusion time. The calculation formula is as follows: in, Indicates the crystallinity, represents the melting enthalpy, represents the preset complete crystallization melting enthalpy, Indicates the stretch ratio, Indicates the extrusion temperature, Indicates the preset melting point of PTFE, It means squeezing out time. Indicates the preset reference extrusion time.

8. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 7, wherein: The step of obtaining the melting enthalpy of the formed sewing thread set comprises: Obtain a sample sewing thread set from the formed sewing thread set, and calculate the sample weight of the sample sewing thread set; Set DSC test parameters, including temperature range, heating rate, and gas flow rate; Performing a heating test on a sample sewing thread set according to DSC test parameters to obtain a heat flow curve, and determining the curve integral area according to the heat flow curve, wherein the horizontal axis of the heat flow curve is temperature and the vertical axis of the heat flow curve is heat flow value; The melting enthalpy of the sample is calculated according to the integral area of ​​the curve and the sample weight, and the melting enthalpy of the sample is used as the melting enthalpy of the initial stretched sewing thread.

9. The method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claim 8, wherein: Determining the curve integral area according to the heat flow curve includes: Obtaining the melting start and end points from the heat flow curve, obtaining the melting interval based on the melting start and end points, and dividing the melting interval using a preset interval width to obtain a segmented interval group; For each segmented interval in the segmented interval group, perform the following operations: According to the segment interval, the segment starting point and segment end point are determined, and the starting point heat flow value and the end point heat flow value are determined according to the segment starting point and segment end point, wherein the segment starting point corresponds to the starting point heat flow value one-to-one, and the segment end point corresponds to the end point heat flow value one-to-one; The area of ​​the segmented interval is calculated based on the interval width, the starting point heat flow value, and the ending point heat flow value. The calculation formula for the segmented interval area is as follows: in, Indicates the first The area of ​​the segmented interval, represents the starting point heat flow value, represents the end point heat flow value, Indicates the width of the interval; Summarize the segmented interval areas to obtain segmented interval area groups, and add up the segmented interval area groups to obtain the curve integral area.

10. A system using the method for optimizing the preparation process of polytetrafluoroethylene sewing thread according to claims 1-9, characterized in that: The system comprises: a raw material mixing module, configured to receive a sewing thread preparation instruction, obtain a polytetrafluoroethylene resin pellet set according to the sewing thread preparation instruction, obtain a clean resin pellet set, an amount of magnetic nanofiller, an amount of lubricant, and an amount of antioxidant based on the polytetrafluoroethylene resin pellet set, mix the clean resin pellet set, the amount of magnetic nanofiller, the amount of lubricant, and the amount of antioxidant to obtain a mixed material, and set a pre-built extruder using preset extrusion parameters to obtain a preset extruder, wherein the extrusion parameters include: extrusion temperature and extrusion time; The material extrusion molding module is used to perform an extrusion operation on the mixed material using a pre-set extruder to obtain a formed sewing thread set, wherein the pre-set extruder includes: a feed port and a discharge port; a sewing thread stretching optimization module, configured to perform the following operations on each of the formed sewing threads in the formed sewing thread set: identifying a stretching area, setting a stretching environment in the stretching area, performing a stretching operation on the formed sewing thread using preset stretching parameters and the stretching environment, monitoring the formed sewing thread in real time, obtaining a stretching ratio and an initial stretched sewing thread, calculating the crystallinity of the initial stretched sewing thread based on the stretching ratio, the extrusion temperature, and the extrusion time, comparing the crystallinity with a preset standard crystallinity threshold, and if the crystallinity is less than the preset standard crystallinity threshold, adjusting the stretching parameters to obtain an adjusted stretching parameter, using the adjusted stretching parameter as the stretching parameter, and returning to the step of performing the stretching operation on the formed sewing thread using the preset stretching parameters and the stretching environment until the crystallinity is greater than or equal to the preset standard crystallinity threshold, thereby obtaining optimal stretching parameters and an optimal stretched sewing thread; The sewing thread process optimization module is used to heat-set the optimal stretch sewing thread to obtain the optimal sewing thread, summarize the optimal sewing thread and the optimal stretching parameters, obtain the optimal sewing thread set and the optimal stretching parameter set, build a stretching parameter database based on the optimal stretching parameter set, and complete the preparation process optimization of polytetrafluoroethylene sewing thread based on the optimal sewing thread set and the stretching parameter database.

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