Co-extrusion production control method, equipment and platform for automotive inner clip strips

Abstract

The present invention discloses a co-extrusion production control method, equipment and platform for vehicle inner clamps, and relates to the field of plastic parts molding technology. The method includes: obtaining the extrusion speed space and PP and TPV extrusion parameter space of the co-extrusion production device, generating and optimizing multiple extrusion speed and parameter combinations, obtaining multiple optimized PP extrusion parameter sets, TPV extrusion parameter sets and their corresponding compliance sets, and screening out the optimal extrusion parameters and extrusion speed by analyzing the parameter change amplitude and the compliance change amplitude, and performing co-extrusion production control. The present invention solves the technical problems of low production efficiency, unstable product quality and high production cost caused by inaccurate parameter control in the traditional co-extrusion production process in the prior art, and achieves the technical effect of improving the production efficiency and product quality of vehicle inner clamps by accurately controlling the extrusion speed, PP extrusion parameters and TPV extrusion parameters in the co-extrusion production process, while reducing the production cost.

Description

Technical Field

[0001] The invention relates to the technical field of plastic part molding, and in particular to a co-extrusion production control method, equipment and platform for vehicle inner clips. Background Art

[0002] With the development of the automobile industry, the quality and performance requirements of vehicle interior trim strips are increasing day by day as an important part of vehicle interior. In order to reduce the weight of parts, improve the VOC odor index of parts and reduce costs, the door interior trim strips mostly adopt PP and TPV co-extrusion structure. The production process of this structural part is 2 extruders + 1 die head composite extrusion, and then cooled and shaped by falling copper mold, and finally completed the production of semi-finished parts. This process is often called one-step production process in the industry. However, in the traditional one-step co-extrusion production process, parameter control often relies on experience and trial and error, resulting in low production efficiency, unstable product quality and high production cost. Summary of the invention

[0003] The present application provides a co-extrusion production control method, equipment and platform for automotive inner clips, which are used to solve the technical problems of low production efficiency, unstable product quality and high production cost caused by inaccurate parameter control in the traditional co-extrusion production process in the prior art.

[0004] In a first aspect of the present application, a co-extrusion production control method for an automotive inner clip is provided, the method comprising: obtaining an extrusion speed space of the co-extrusion production device, and obtaining a PP extrusion parameter space and a TPV extrusion parameter space of the PP extruder group and the TPV extruder group; generating a first extrusion speed in the extrusion speed space, and optimizing the PP extrusion parameters and the TPV extrusion parameters in the PP extrusion parameter space and the TPV extrusion parameter space according to the first extrusion speed, to obtain a first optimized PP extrusion parameter set and a first optimized TPV extrusion parameter set, and a first optimized compliance set; continuing to randomly generate extrusion speeds, and optimizing the PP extrusion parameters and the TPV extrusion parameters, to obtain a plurality of optimized PP extrusion parameter sets, a plurality of optimized TPV extrusion parameter sets, and a plurality of optimized compliance sets; performing parameter change analysis and compliance change analysis based on the plurality of optimized PP extrusion parameter sets, a plurality of optimized TPV extrusion parameter sets, and a plurality of optimized compliance sets, and outputting the optimal PP extrusion parameters and the optimal TPV extrusion parameters in the optimized PP extrusion parameter set and the optimized TPV basic parameter set with the smallest parameter change amplitude and compliance change amplitude, as well as the corresponding optimal extrusion speed, to control co-extrusion production.

[0005] In a second aspect of the present application, a co-extrusion production control platform for an automotive inner clip is provided, the platform comprising: an extrusion parameter space acquisition module, the extrusion parameter space acquisition module is used to acquire the extrusion speed space of the co-extrusion production device, and acquire the PP extrusion parameter space and TPV extrusion parameter space of the PP extruder group and the TPV extruder group; a first extrusion parameter optimization module, the first extrusion parameter optimization module is used to generate a first extrusion speed in the extrusion speed space, optimize the PP extrusion parameters and the TPV extrusion parameters in the PP extrusion parameter space and the TPV extrusion parameter space according to the first extrusion speed, obtain a first optimized PP extrusion parameter set and a first optimized TPV extrusion parameter set, and a first optimized compliance set; An extrusion parameter iteration optimization module, the extrusion parameter iteration optimization module is used to continue to randomly generate extrusion speeds, and optimize PP extrusion parameters and TPV extrusion parameters to obtain multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets and multiple optimized compliance sets; a co-extrusion production control module, the co-extrusion production control module is used to perform parameter change analysis and compliance change analysis based on the multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets and multiple optimized compliance sets, output the optimal PP extrusion parameters and optimal TPV extrusion parameters in the optimized PP extrusion parameter set and the optimized TPV basic parameter set with the smallest parameter change amplitude and compliance change amplitude, and the corresponding optimal extrusion speed, to control co-extrusion production.

[0006] In a third aspect, the present application provides an electronic device, comprising: a processor, the processor is coupled to a memory, the memory is used to store a program, when the program is executed by the processor, the system executes any one of the methods described in the first aspect.

[0007] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0008] The co-extrusion production control method, equipment and platform for automotive inner clips provided in the present application relate to the field of plastic parts molding technology. By optimizing the extrusion speed and PP and TPV extrusion parameters, multiple optimization parameter sets are generated, and the parameter change amplitude and compliance change amplitude are analyzed to screen out the optimal parameter combination and extrusion speed to ensure stability and high-quality output during the production process. The technical problems of low production efficiency, unstable product quality and high production cost caused by inaccurate parameter control in the traditional co-extrusion production process in the prior art are solved, and the technical effect of improving the production efficiency and product quality of automotive inner clips and reducing production costs while achieving the technical effect of accurately controlling the extrusion speed, PP extrusion parameters and TPV extrusion parameters in the co-extrusion production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 A schematic flow chart of a co-extrusion production control method for an automotive inner clip provided in an embodiment of the present application;

[0011] Figure 2 It is a schematic diagram of the two-step process structure;

[0012] Figure 3 A schematic diagram of the structure of a co-extrusion production control platform for an automotive inner clip provided in an embodiment of the present application;

[0013] Figure 4 A structural schematic diagram of an electronic device is provided for the present application.

[0014] Explanation of the reference numerals: extrusion parameter space acquisition module 11, first extrusion parameter optimization module 12, extrusion parameter iterative optimization module 13, co-extrusion production control module 14, PP extrusion unit 21, PP extrusion head 211, PP extrusion cooling tank 212, PP extrusion tractor 213, TPV extrusion unit 22, TPV extrusion head 221, TPV extrusion cooling tank 222, TPV extrusion tractor 223, electronic device 300, memory 301, processor 302, communication interface 303, bus architecture 304. DETAILED DESCRIPTION

[0015] The present application provides a co-extrusion production control method, equipment and platform for automotive inner clips, which are used to solve the technical problems of low production efficiency, unstable product quality and high production cost caused by inaccurate parameter control in the traditional co-extrusion production process in the prior art.

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0017] It should be noted that the terms "first", "second", etc. in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or devices.

[0018] Embodiment 1, as Figure 1 As shown, the present application provides a co-extrusion production control method for an automotive inner clip strip, the method is applied to a co-extrusion production device for an automotive inner clip strip, the device comprises a PP extruder unit and a TPV extruder unit, the PP skeleton extruded by the PP extruder unit penetrates into the TPV extruder unit and is co-extruded with the TPV to form a clip strip, such as Figure 2 As shown, the present invention adopts a two-step production process, and the method comprises:

[0019] P10: Acquire the extrusion speed space of the co-extrusion production device, and acquire the PP extrusion parameter space and TPV extrusion parameter space of the PP extruder unit and the TPV extruder unit.

[0020] Furthermore, step P10 of the embodiment of the present application further includes:

[0021] P11: Obtain the extrusion speed space of the co-extrusion production device; P12: Obtain the PP extrusion temperature space and PP extrusion pressure space of the PP extrusion unit and the TPV extrusion unit, as well as the TPV extrusion temperature space and TPV extrusion pressure space; P13: Combine the PP extrusion temperature space and PP extrusion pressure space to obtain the PP extrusion parameter space, and combine the TPV extrusion temperature space and TPV extrusion pressure space to obtain the TPV extrusion parameter space.

[0022] It should be understood that the present invention adopts a two-step production process and is applied to a co-extrusion production device for an automotive inner clip, wherein the device includes a PP extrusion unit 21 and a TPV extrusion unit 22, wherein the PP extrusion unit 21 is composed of a PP extrusion head 211, a PP extrusion cooling tank 212, and a PP extrusion tractor 213. The TPV extrusion unit 22 is composed of a TPV extrusion head 221, a TPV extrusion cooling tank 222, and a TPV extrusion tractor 223.

[0023] The PP and TPV plasticized materials are compounded and split into a PP extrusion head 211 and a TPV extrusion head 221 in a common die mold, extruded separately through the PP extrusion head 211, and shaped through the PP extrusion cooling tank 212, and then passed through the PP extrusion tractor 213 as a skeleton into the second die (TPV extrusion head 221), co-extruded with the TPV material in the second die, and formed into a clamping strip through the TPV extrusion cooling tank 222. The two-step process adds a die, a water tank and a tractor, making the production line longer, the PP material is shaped separately by water cooling, the shaping efficiency is high, the production speed is improved, and the cross-sectional conformity is better.

[0024] Based on the two-step production process, the first step of this application is to define and obtain the key parameter spaces of the co-extrusion production device, including obtaining the extrusion speed space of the co-extrusion production device, and obtaining the PP extrusion parameter space and TPV extrusion parameter space of the PP extruder unit and TPV extruder unit. Ensure that the material flow and performance during the extrusion process of PP (polypropylene) and TPV (thermoplastic vulcanizate) can be accurately controlled.

[0025] Specifically, we first need to obtain the spatial extrusion speed of the co-extrusion production device. The extrusion speed refers to the speed at which the material flows out of the extruder, usually expressed as "weight / time" or "volume / time". The extrusion speed space of the co-extrusion production device defines all possible extrusion speed ranges, which will directly affect the plasticization degree of the material, melt fluidity and the quality of co-extrusion synthesis.

[0026] Furthermore, the PP extrusion temperature space and PP extrusion pressure space of the PP extruder unit are determined respectively. The temperature space defines the temperature range for heating the PP material, and the temperature is crucial to the plasticization process. Too high a temperature may cause PP to decompose or foam, while too low a temperature will cause insufficient material fluidity and affect the co-extrusion process. The pressure space defines the pressure range of the extruder unit under different working conditions, and the pressure directly affects the density, uniformity and molding effect of the extruded material.

[0027] Similarly, obtain the TPV extrusion temperature space and TPV extrusion pressure space of the TPV extruder unit. TPV is a thermoplastic vulcanized rubber with high viscosity and unique processing characteristics. The temperature space of TPV needs special control to avoid excessive vulcanization or material degradation due to too high temperature, and insufficient plasticization due to too low temperature. The pressure space also has a significant impact on the extrusion performance of TPV, especially in the flow control of high viscosity materials. Appropriate pressure can help ensure that the TPV material can pass through the extruder and mold smoothly.

[0028] Furthermore, the PP extrusion temperature space and the PP extrusion pressure space are combined to obtain the PP extrusion parameter space; at the same time, the TPV extrusion temperature space and the TPV extrusion pressure space are combined to obtain the TPV extrusion parameter space. This step is to combine the various parameters obtained previously to form a complete extrusion parameter space. In this parameter space, a suitable parameter combination can be selected according to actual production needs to achieve the best production effect. By continuously optimizing these parameter combinations, the quality and production efficiency of the product can be further improved.

[0029] Among them, the PP extrusion parameter space describes the working performance of the PP material under different temperature and pressure conditions, including its fluidity, plasticization and stability. By optimizing this space, it can be ensured that the PP skeleton can be stably extruded during the co-extrusion process, while providing a uniform basis for TPV coating. Similarly, the extrusion parameter space of TPV defines the processing characteristics of TPV materials under different temperatures and pressures. The extrusion of TPV usually requires higher pressure and moderate temperature to ensure its good coating performance and adhesion to the PP skeleton. By defining the extrusion parameter space of TPV, it can be ensured that TPV can be evenly attached to the surface of the PP skeleton during the coating process and avoid the occurrence of poor composite structures.

[0030] P20: Generate a first extrusion speed in the extrusion speed space, and optimize the PP extrusion parameters and TPV extrusion parameters in the PP extrusion parameter space and TPV extrusion parameter space according to the first extrusion speed to obtain a first optimized PP extrusion parameter set and a first optimized TPV extrusion parameter set, as well as a first optimized compliance set.

[0031] Furthermore, step P20 of the embodiment of the present application further includes:

[0032] P21: randomly generate a first extrusion speed in the extrusion speed space; P22: randomly generate multiple groups of first PP extrusion parameters and first TPV extrusion parameters in the PP extrusion parameter space and TPV extrusion parameter space; P23: respectively use each group of first PP extrusion parameters and first TPV extrusion parameters, combined with the first extrusion speed, to predict the specification compliance of the extrusion clamp, and obtain multiple first compliances; P24: screen out the first PP extrusion parameters and first TPV extrusion parameters corresponding to the largest first compliance among the multiple first compliances as the optimization direction, continue to adjust and optimize the PP extrusion parameters and TPV extrusion parameters, update the optimization direction according to the compliance, and update and retain the PP extrusion parameters and TPV extrusion parameters until the optimization converges; P25: output the multiple groups of PP extrusion parameters and TPV extrusion parameters that are finally retained as the first optimized PP extrusion parameter set and the first optimized TPV extrusion parameter set, and obtain multiple compliances of the multiple groups of PP extrusion parameters and TPV extrusion parameters that are finally retained as the first optimized compliance set.

[0033] Optionally, the extrusion parameters of PP and TPV are optimized in the extrusion speed space. By optimizing the extrusion parameters, it is ensured that the co-extrusion production process of the automotive inner clip meets the specification requirements, and finally the optimal extrusion parameter set and corresponding compliance are obtained.

[0034] Specifically, first, a first extrusion speed is randomly generated in the extrusion speed space. The purpose of this step is to select an initial extrusion speed as the starting point for optimization. The extrusion speed has a significant impact on the fluidity of the material and the quality of the final product, so by randomly generating the speed, different production conditions can be explored to find a suitable starting point. The extrusion speed must match the extrusion characteristics of both PP and TPV materials, so its selection is very important.

[0035] After the first extrusion speed is generated, multiple sets of first PP extrusion parameters and first TPV extrusion parameters are randomly generated in the PP extrusion parameter space and TPV extrusion parameter space. These parameters include important control factors such as extrusion temperature and pressure, which directly affect the processing effect of the material and the final performance of the clamp. By generating multiple sets of parameter combinations, different production conditions can be covered to ensure that the best extrusion effect can be found under different parameter settings.

[0036] After generating multiple sets of first PP extrusion parameters and first TPV extrusion parameters, each set of parameters is combined with the first extrusion speed to predict the compliance of the clamping strip specifications. Compliance refers to whether the clamping strip produced under these parameter settings meets the predetermined quality and specification requirements. The compliance value generated by each set of parameters represents the adaptability of the parameter combination. The greater the compliance, the better the extrusion effect of the set of parameters and the more it meets the quality standards.

[0037] Next, by comparing multiple compliances, the first PP extrusion parameters and the first TPV extrusion parameters corresponding to the maximum compliance are screened out. These parameters will be used as the optimization direction and continue to be adjusted and optimized. On this basis, the optimization process will continuously adjust the parameters according to the changes in the compliance values ​​to further improve the quality of the product. Once the optimization direction is clear and the parameter adjustment reaches a stable state (i.e. convergence), the optimization can be stopped.

[0038] Finally, after the optimization process converges, the multiple sets of PP extrusion parameters and TPV extrusion parameters that are finally retained are output as the first optimized PP extrusion parameter set and the first optimized TPV extrusion parameter set. At the same time, the compliance corresponding to these parameters is recorded to form the first optimized compliance set. These two sets of optimized parameter sets will be used as control standards in the subsequent production process to ensure that in the subsequent co-extrusion production process, high-quality automotive inner clip production can be stably achieved.

[0039] Through the above process, compliance can be fully utilized to accurately optimize the extrusion parameters, so that each extrusion operation can meet the predetermined quality standards and ensure stability and efficiency in the production process.

[0040] Furthermore, step P23 of the embodiment of the present application also includes:

[0041] P23-1: Based on the historical co-extrusion production data of the clamp, collect sample PP extrusion parameter set, sample TPV extrusion parameter set and sample extrusion speed set, and collect the specification similarity between the cross-sectional specifications of the clamp extruded under different sample PP extrusion parameters, sample TPV extrusion parameters and sample extrusion speeds and the standard cross-sectional specifications, and mark them as sample compliance sets; P23-2: Use the sample PP extrusion parameter set, sample TPV extrusion parameter set and sample extrusion speed set, combined with the sample compliance set, to train the extrusion specification compliance predictor; P23-3: Input each group of first PP extrusion parameters and first TPV extrusion parameters, combined with the first extrusion speed, into the extrusion specification compliance predictor, and predict and output to obtain multiple first compliances.

[0042] Specifically, the extrusion process is optimized by combining historical data and machine learning methods to more accurately predict and improve the compliance of extrusion specifications. First, a sample PP extrusion parameter set, a sample TPV extrusion parameter set and a sample extrusion speed set are collected, and the specification similarity of the extruded clamp section specifications and standard section specifications under different sample PP extrusion parameters, sample TPV extrusion parameters and sample extrusion speeds is collected, and marked as a sample compliance set. Among them, the sample PP extrusion parameter set is summarized based on past production data, covering a variety of PP extrusion temperatures, pressures and other operating parameters. The sample TPV extrusion parameter set is similar to the PP parameters, including the extrusion temperature and pressure of TPV. The sample extrusion speed set includes various extrusion speed data used in historical production, and these speeds affect the fluidity and composite effect of the material.

[0043] Next, according to different sample PP extrusion parameters, sample TPV extrusion parameters and sample extrusion speeds, the clamps extruded in production will have corresponding cross-sectional specifications. The cross-sectional specifications of each production sample will be compared with the standard cross-sectional specifications to calculate their specification similarity. Specification similarity is used to measure the deviation between the geometric dimensions of the actual production clamps and the standard dimensions. The higher the specification similarity, the closer the actual extruded clamps are to the expected standard specifications, thereby generating a sample compliance set that contains the compliance values ​​of each set of historical data.

[0044] Next, through machine learning methods, an extrusion specification compliance predictor is trained using a sample PP extrusion parameter set, a sample TPV extrusion parameter set, a sample extrusion speed set, and a corresponding sample compliance set. The task of this predictor is to predict the specification compliance of the clamp based on the input extrusion parameters (including the operating parameters and extrusion speed of PP and TPV materials). Through continuous iteration and optimization of the model, the trained predictor can accurately determine whether the extruded clamp meets the standard specification requirements under given parameter conditions. During the training process, the input features include: various extrusion parameters of PP and TPV (such as temperature, pressure, etc.), extrusion speed, and the sample compliance is used as the output label to indicate the degree of similarity between the clamp extruded under these input conditions and the standard specifications.

[0045] Finally, each set of first PP extrusion parameters and first TPV extrusion parameters, as well as the first extrusion speed, are input into the trained extrusion specification compliance predictor. The predictor will predict the specification compliance of the extruded clamp according to the input parameters. Each set of input data will output a corresponding first compliance, indicating the degree of compliance of the clamp specification under this set of parameters. Through this prediction, the impact of different parameter combinations on the quality of the final product can be effectively evaluated.

[0046] Through this process, more intelligent and precise extrusion control can be achieved, ensuring that the specifications of the produced clips are as close to the standard specifications as possible, improving production efficiency and reducing quality problems caused by parameter fluctuations. This compliance optimization method based on historical data and machine learning predictions greatly improves the accuracy of the extrusion process and the consistency of the product.

[0047] Furthermore, step P24 of the embodiment of the present application also includes:

[0048] P24-1: Filter out the first PP extrusion parameters and first TPV extrusion parameters corresponding to the largest first compliance degree among the multiple first compliance degrees as the optimization direction; P24-2: According to the optimization direction as the adjustment direction, adjust the other multiple groups of first PP extrusion parameters and first TPV extrusion parameters to obtain multiple groups of second PP extrusion parameters and second TPV extrusion parameters; P24-3: Use each group of second PP extrusion parameters and second TPV extrusion parameters respectively, combined with the first extrusion speed, to predict the specification compliance of the extrusion clamp to obtain multiple second compliance degrees; P24-4: According to the multiple second compliance degrees and multiple first compliance degrees, filter out the PP extrusion parameters and extrusion parameters corresponding to the largest compliance degree, update them as the optimization direction, and retain the multiple groups of PP extrusion parameters and extrusion parameters with the highest compliance degrees; P24-5: Continue to adjust and optimize the PP extrusion parameters and TPV extrusion parameters, update the optimization direction according to the compliance degree, and update and retain the PP extrusion parameters and TPV extrusion parameters until the optimization converges.

[0049] It should be understood that by iteratively optimizing the extrusion parameters and continuously adjusting and updating the parameters according to the changes in compliance until the optimized convergence state is reached, it is ensured that the final selected extrusion parameter combination can achieve the best specification compliance and maintain the stability of the production process.

[0050] First, select the value with the highest compliance from multiple first compliances. The first compliance indicates the degree of closeness between the specifications of the produced clips and the standard specifications under specific first PP extrusion parameters and first TPV extrusion parameters. Select the parameter combination corresponding to the maximum compliance as the current optimization direction, that is, the adjustment direction of these parameters will be used as the basis for the next optimization. This step determines the core focus of the next optimization by maximizing the compliance, so that the parameter optimization moves towards the goal of improving the compliance of the specifications.

[0051] According to the optimal parameter combination selected in the previous step (the first PP and first TPV extrusion parameters corresponding to the maximum compliance), these parameters are used as the adjustment direction. The other multiple groups of first PP extrusion parameters and first TPV extrusion parameters are adjusted to obtain the second PP extrusion parameters and the second TPV extrusion parameters. The goal of the adjustment is to make these new parameter combinations as close as possible to the optimization direction determined in the previous step, that is, to further improve the compliance through adjustment, so that the new parameter combination is closer to the optimal production state.

[0052] After obtaining the adjusted second PP extrusion parameters and second TPV extrusion parameters, each set of new parameters is input into the extrusion specification compliance prediction model together with the first extrusion speed to predict the specification compliance. At this time, the second compliance reflects the degree of match between the extruded clip and the standard specification under the new parameter combination. Through this prediction, it can be evaluated whether these adjusted parameters can further improve compliance and optimize the production process.

[0053] Next, compare the multiple second compliances with the multiple first compliances, and select the combination with the highest compliance. The second PP extrusion parameters and the second TPV extrusion parameters corresponding to the maximum compliance will be updated as the new optimization direction. In this process, multiple parameter combinations with large compliances should also be retained for possible further optimization. This step aims to update the optimization direction by continuously selecting the maximum compliance value, thereby ensuring that the extrusion parameters can continuously approach the optimal target in each round of optimization.

[0054] Finally, continue to adjust and optimize the PP extrusion parameters and TPV extrusion parameters. In each adjustment, the optimization direction will be updated according to the change in compliance, and the new extrusion parameters will be retained. When the adjustment results of the extrusion parameters tend to be stable, that is, when the change in compliance is no longer significant, the optimization process converges. Convergence means that a relatively stable set of optimal extrusion parameters has been found, which can stably produce automotive inner clips that meet standard specifications in co-extrusion production.

[0055] Through this iterative optimization process, the parameter combination with the best compliance is continuously screened out, thus ensuring that the final selected PP extrusion parameters and TPV extrusion parameters can stably produce automotive inner clips that meet standard specifications. This optimization method based on compliance feedback effectively reduces fluctuations in the production process and improves product quality consistency and production efficiency.

[0056] P30: Continue to randomly generate extrusion speeds, and optimize PP extrusion parameters and TPV extrusion parameters to obtain multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets, and multiple optimized compliance sets.

[0057] Optionally, the extrusion process is continuously optimized by continuously generating different extrusion speeds and combining parameter optimization to obtain more optimized parameter sets to further improve the stability of the production process and product quality.

[0058] Specifically, we first continue to randomly generate multiple different extrusion speeds in the extrusion speed space. The extrusion speed is a key parameter that affects the material fluidity and compounding effect during the extrusion process. By generating different speed values ​​in the extrusion speed space, we can explore more possible production conditions, especially at different speeds, the flow behavior and melting properties of the material may change significantly. Therefore, by adjusting the extrusion speed, we can find the best parameter combination.

[0059] Furthermore, for each new extrusion speed, the PP extrusion parameters and TPV extrusion parameters need to be optimized. PP extrusion parameters include temperature, pressure, material flow rate, etc. These parameters directly affect the melting state and fluidity of PP materials, thereby affecting the composite effect. TPV extrusion parameters also include similar control parameters such as temperature and pressure, which determine the melt fluidity of TPV materials and how to form a uniform outer layer on the PP skeleton.

[0060] After each new extrusion speed is generated, the PP extrusion parameters and TPV extrusion parameters are optimized for the speed to find a set of extrusion parameters that make the clamping strip specifications most compliant. This optimization process takes into account the characteristics of different materials, the performance of the extrusion equipment, and the required product specifications to ensure that the final extruded clamping strip meets the size requirements and ensures good material bonding.

[0061] By continuously generating different extrusion speeds and performing corresponding parameter optimization, multiple optimized PP extrusion parameter sets, TPV extrusion parameter sets and corresponding compliance sets will eventually be obtained. These parameter sets and compliance sets provide a wider range of candidate solutions for the next parameter selection and further optimization. This process can effectively improve the stability of the production process, ensure high-quality clip production under different production conditions, and provide a more flexible extrusion control strategy, so that the final production parameters can adapt to different production needs and equipment conditions, thereby ensuring the consistency and reliability of product quality.

[0062] P40: Perform parameter change analysis and compliance change analysis based on the multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets and multiple optimized compliance sets, output the optimal PP extrusion parameters and optimal TPV extrusion parameters in the optimized PP extrusion parameter set and the optimized TPV basic parameter set with the smallest parameter change amplitude and compliance change amplitude, as well as the corresponding optimal extrusion speed, to perform co-extrusion production control.

[0063] Furthermore, step P40 of the embodiment of the present application also includes:

[0064] P41: Perform parameter change analysis based on the multiple optimized PP extrusion parameter sets and the multiple optimized TPV extrusion parameter sets to obtain multiple parameter change amplitudes, and perform compliance change analysis based on the multiple optimized compliance sets to obtain multiple compliance change amplitudes; P42: Perform weighted calculation on the multiple parameter change amplitudes and the multiple compliance change amplitudes to obtain multiple comprehensive change amplitudes; P43: Output the optimized PP extrusion parameter set and the optimized TPV basic parameter set corresponding to the smallest comprehensive change amplitude among the multiple comprehensive change amplitudes as the optimal PP extrusion parameter set and the optimal TPV basic parameter set; P44: Output the optimal PP extrusion parameters and the optimal TPV extrusion parameters with the largest compliance among the optimal PP extrusion parameter set and the optimal TPV basic parameter set; P45: Output the extrusion speed corresponding to the optimal PP extrusion parameter set and the optimal TPV basic parameter set as the optimal extrusion speed, and perform co-extrusion production control in combination with the optimal PP extrusion parameters and the optimal TPV extrusion parameters.

[0065] In a possible embodiment of the present application, by analyzing the variation ranges of multiple optimization parameter sets and compliance sets, the optimal extrusion parameters and extrusion speed are screened out, thereby ensuring that automotive inner clips that meet specifications can be stably produced during the co-extrusion production process.

[0066] First, parameter variation analysis was performed on multiple optimized PP extrusion parameter sets and optimized TPV extrusion parameter sets, that is, the variation range of these parameters under different production conditions was analyzed. The parameter variation range refers to the variation range of extrusion parameters (such as temperature, pressure, etc.) during the optimization process. A smaller variation range means that the optimized parameters are more concentrated, which can ensure the stability of the production process.

[0067] Next, the compliance change analysis is performed on multiple optimized compliance sets. The compliance change amplitude refers to the fluctuation range of the clamp specification compliance under different optimization parameters. A smaller compliance change amplitude means that the specification deviation of the clamp is smaller under different parameter configurations in the production process, and the product quality is more consistent.

[0068] Furthermore, multiple parameter change amplitudes and multiple compliance change amplitudes are weighted to obtain multiple comprehensive change amplitudes. Through weighted calculation, the impact of parameter changes and compliance changes on production process stability and product quality can be comprehensively considered. The allocation of weights is usually based on actual production needs and may be adjusted according to specific requirements in the production process to ensure that parameter fluctuations can be controlled during the optimization process while ensuring high product compliance.

[0069] Next, the smallest comprehensive change amplitude among multiple comprehensive change amplitudes is screened out, and the optimal PP extrusion parameter set and the optimal TPV basic parameter set are output based on the parameter combination corresponding to this smallest comprehensive change amplitude. These optimal parameter sets are selected based on the analysis results and have the smallest fluctuation range, which can ensure that the specifications of the produced clips are always stable and meet the quality standards in the actual production process.

[0070] Next, the optimal PP extrusion parameters and the optimal TPV extrusion parameters with the highest compliance are selected from the optimal PP extrusion parameter set and the optimal TPV basic parameter set. These parameter combinations can provide the best production results, ensuring that under these control parameters, the extruded clips meet the standard specification requirements and achieve the best compliance.

[0071] Finally, according to the optimal PP extrusion parameter set and the optimal TPV basic parameter set, the corresponding optimal extrusion speed is output. This optimal extrusion speed is obtained based on all the previous optimization and compliance analysis results to ensure that at this speed, the PP and TPV materials can be optimally matched to form a stable composite clamp. Then, combined with the optimal PP extrusion parameters, TPV extrusion parameters and optimal extrusion speed, co-extrusion production control is carried out to ensure the stability and efficiency of the entire co-extrusion production process, and finally produce automotive inner clamps that meet the standards. This process ensures that the materials can be effectively combined during the co-extrusion production process and that the clamps can stably produce products that meet quality standards by precisely controlling each key parameter.

[0072] Furthermore, step P41 of the embodiment of the present application further includes:

[0073] P41-1: Extract multiple maximum PP extrusion parameters and multiple minimum PP extrusion parameters from the multiple optimized PP extrusion parameter sets, and calculate to obtain multiple PP extrusion parameter difference amplitudes; P41-2: Extract multiple maximum TPV extrusion parameters and multiple minimum TPV extrusion parameters from the multiple optimized TPV extrusion parameter sets, and calculate to obtain multiple TPV basic parameter difference amplitudes; P41-3: Calculate the average of the multiple PP extrusion parameter difference amplitudes and the multiple TPV basic parameter difference amplitudes to obtain multiple parameter change amplitudes; P41-4: Extract the maximum compliance and minimum compliance from the multiple optimized compliance sets, calculate the difference percentage to obtain multiple compliance change amplitudes.

[0074] Specifically, by performing detailed analysis on multiple optimized PP extrusion parameter sets, TPV extrusion parameter sets and compliance sets, the parameter variation amplitudes and compliance variation amplitudes were calculated to evaluate the stability and compliance of each parameter combination.

[0075] First, the maximum PP extrusion parameter and the minimum PP extrusion parameter in each set of parameters are extracted from multiple sets of optimized PP extrusion parameters. These two values ​​represent the fluctuation range of the parameters during the extrusion of PP materials under different extrusion conditions. By calculating the difference between the maximum and minimum values, the difference amplitude of each set of PP extrusion parameters can be obtained, which reflects the variation range of these parameters under different optimization conditions. A larger difference amplitude indicates that the parameter fluctuates more, which may affect the stability of the production process, while a smaller difference amplitude indicates that the parameter is more concentrated and stable.

[0076] Next, the maximum TPV extrusion parameter and the minimum TPV extrusion parameter of each set of parameters are extracted from multiple optimized TPV extrusion parameter sets, and the difference between the two parameters is calculated to obtain the difference amplitude of each set of TPV basic parameters. Similar to PP extrusion parameters, fluctuations in TPV extrusion parameters will also affect the final clamping strip specifications and production stability. By calculating the difference amplitude, the degree of change of TPV parameters during the optimization process can be reflected. A larger difference amplitude may increase the difficulty of control during the production process, while a smaller difference amplitude indicates that the TPV extrusion parameters change less under different optimization schemes, which helps to maintain production stability.

[0077] Furthermore, the difference amplitudes of multiple PP extrusion parameters and multiple TPV basic parameter difference amplitudes are averaged. The purpose of this process is to obtain the average change amplitude of each parameter set, that is, to obtain an overall parameter change amplitude by calculating the average value of the fluctuation range of all parameters. This value can comprehensively reflect the stability of PP and TPV parameters. A smaller parameter change amplitude means that the parameter set is more stable during the optimization process, while a larger change amplitude means that the parameters in the optimization process are not stable enough, which may affect production quality.

[0078] Next, multiple optimized compliance sets are analyzed. Compliance is an indicator that evaluates the degree of match between the extruded clamp and the standard specifications, usually expressed as a percentage. In this process, the maximum and minimum compliance in each compliance set are extracted, and the compliance change amplitude is obtained by calculating the percentage difference between the maximum and minimum compliance. The difference percentage indicates the fluctuation of compliance during different optimization processes. A larger compliance change amplitude indicates that the specification deviation of the clamp is larger under different conditions, while a smaller change amplitude indicates better stability of the product specifications.

[0079] Through the above steps, it is possible to identify optimized parameter combinations with higher stability and compliance, providing strong data support for subsequent production control. This process helps to ensure that in actual production, parameter changes during the extrusion process can be effectively controlled, thereby ensuring the stability and consistency of product quality.

[0080] In summary, the embodiments of the present application have at least the following technical effects:

[0081] The present application obtains the extrusion speed space of the co-extrusion production device and the PP and TPV extrusion parameter space, generates and optimizes multiple extrusion speed and parameter combinations, obtains multiple optimized PP extrusion parameter sets, TPV extrusion parameter sets and their corresponding compliance sets, and screens out the optimal extrusion parameters and extrusion speed by analyzing the parameter change amplitude and the compliance change amplitude to perform co-extrusion production control.

[0082] The technical effect of improving the production efficiency and product quality of automotive inner clips while reducing production costs is achieved by precisely controlling the extrusion speed, PP extrusion parameters and TPV extrusion parameters in the co-extrusion production process.

[0083] Embodiment 2, based on the same inventive concept as the co-extrusion production control method of the vehicle inner clip in the above embodiment, Figure 3 As shown, the present application provides a co-extrusion production control platform for vehicle inner clips, and the system and method embodiments in the present application are based on the same inventive concept. The platform includes:

[0084] The extrusion parameter space acquisition module 11 is used to acquire the extrusion speed space of the co-extrusion production device, and acquire the PP extrusion parameter space and the TPV extrusion parameter space of the PP extruder group and the TPV extruder group.

[0085] The first extrusion parameter optimization module 12 is used to generate a first extrusion speed in the extrusion speed space, and optimize the PP extrusion parameters and TPV extrusion parameters in the PP extrusion parameter space and TPV extrusion parameter space according to the first extrusion speed to obtain a first optimized PP extrusion parameter set and a first optimized TPV extrusion parameter set, as well as a first optimized compliance set.

[0086] The extrusion parameter iterative optimization module 13 is used to continue to randomly generate extrusion speeds, and optimize PP extrusion parameters and TPV extrusion parameters to obtain multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets and multiple optimized compliance sets.

[0087] The co-extrusion production control module 14 is used to perform parameter change analysis and compliance change analysis based on the multiple optimized PP extrusion parameter sets, the multiple optimized TPV extrusion parameter sets and the multiple optimized compliance sets, and output the optimal PP extrusion parameters and optimal TPV extrusion parameters in the optimized PP extrusion parameter set with the smallest parameter change amplitude and compliance change amplitude, and the optimized TPV basic parameter set, as well as the corresponding optimal extrusion speed, to perform co-extrusion production control.

[0088] Furthermore, the extrusion parameter space acquisition module 11 is also used to perform the following steps:

[0089] Acquire the extrusion speed space of the co-extrusion production device; acquire the PP extrusion temperature space and the PP extrusion pressure space of the PP extrusion unit and the TPV extrusion unit, as well as the TPV extrusion temperature space and the TPV extrusion pressure space; combine the PP extrusion temperature space and the PP extrusion pressure space to obtain the PP extrusion parameter space, and combine the TPV extrusion temperature space and the TPV extrusion pressure space to obtain the TPV extrusion parameter space.

[0090] Furthermore, the first extrusion parameter optimization module 12 is further configured to perform the following steps:

[0091] A first extrusion speed is randomly generated in the extrusion speed space; multiple groups of first PP extrusion parameters and first TPV extrusion parameters are randomly generated in the PP extrusion parameter space and the TPV extrusion parameter space; each group of first PP extrusion parameters and first TPV extrusion parameters is respectively used, in combination with the first extrusion speed, to predict the specification compliance of the extrusion clamp to obtain multiple first compliances; the first PP extrusion parameters and first TPV extrusion parameters corresponding to the largest first compliance among the multiple first compliances are screened out as the optimization direction, and the adjustment and optimization of the PP extrusion parameters and the TPV extrusion parameters are continued, the optimization direction is updated according to the compliance, and the PP extrusion parameters and the TPV extrusion parameters are updated and retained until the optimization converges; the multiple groups of PP extrusion parameters and TPV extrusion parameters that are finally retained are output as the first optimized PP extrusion parameter set and the first optimized TPV extrusion parameter set, and multiple compliances of the multiple groups of PP extrusion parameters and TPV extrusion parameters that are finally retained are obtained as the first optimized compliance set.

[0092] Furthermore, the first extrusion parameter optimization module 12 is further configured to perform the following steps:

[0093] According to the historical co-extrusion production data of the clamp, a sample PP extrusion parameter set, a sample TPV extrusion parameter set and a sample extrusion speed set are collected, and the specification similarities between the cross-sectional specifications of the clamp extruded under different sample PP extrusion parameters, sample TPV extrusion parameters and sample extrusion speeds and the standard cross-sectional specifications are collected and marked as a sample compliance set; the sample PP extrusion parameter set, the sample TPV extrusion parameter set and the sample extrusion speed set are used in combination with the sample compliance set to train an extrusion specification compliance predictor; each group of first PP extrusion parameters and first TPV extrusion parameters, combined with the first extrusion speed, is input into the extrusion specification compliance predictor, and a plurality of first compliances are obtained by prediction output.

[0094] Furthermore, the first extrusion parameter optimization module 12 is further configured to perform the following steps:

[0095] Filter out the first PP extrusion parameters and first TPV extrusion parameters corresponding to the largest first compliance degree among the multiple first compliance degrees as the optimization direction; adjust the other multiple groups of first PP extrusion parameters and first TPV extrusion parameters according to the optimization direction as the adjustment direction to obtain multiple groups of second PP extrusion parameters and second TPV extrusion parameters; use each group of second PP extrusion parameters and second TPV extrusion parameters respectively, combined with the first extrusion speed, to predict the specification compliance of the extrusion clamp to obtain multiple second compliance degrees; according to the multiple second compliance degrees and the multiple first compliance degrees, filter out the PP extrusion parameters and extrusion parameters corresponding to the largest compliance degree, update them as the optimization direction, and retain multiple groups of PP extrusion parameters and extrusion parameters with higher compliance degrees; continue to adjust and optimize the PP extrusion parameters and TPV extrusion parameters, update the optimization direction according to the compliance degree, and update and retain the PP extrusion parameters and TPV extrusion parameters until the optimization converges.

[0096] Furthermore, the co-extrusion production control module 14 is also used to perform the following steps:

[0097] According to the multiple optimized PP extrusion parameter sets and the multiple optimized TPV extrusion parameter sets, parameter change analysis is performed to obtain multiple parameter change amplitudes, and according to the multiple optimized compliance sets, compliance change analysis is performed to obtain multiple compliance change amplitudes; weighted calculation is performed on the multiple parameter change amplitudes and the multiple compliance change amplitudes to obtain multiple comprehensive change amplitudes; the optimized PP extrusion parameter set and the optimized TPV basic parameter set corresponding to the smallest comprehensive change amplitude among the multiple comprehensive change amplitudes are output as the optimal PP extrusion parameter set and the optimal TPV basic parameter set; the optimal PP extrusion parameters and the optimal TPV extrusion parameters with the largest compliance among the optimal PP extrusion parameter set and the optimal TPV basic parameter set are output; the extrusion speed corresponding to the optimal PP extrusion parameter set and the optimal TPV basic parameter set is output as the optimal extrusion speed, and co-extrusion production control is performed in combination with the optimal PP extrusion parameters and the optimal TPV extrusion parameters.

[0098] Furthermore, the co-extrusion production control module 14 is also used to perform the following steps:

[0099] Extract multiple maximum PP extrusion parameters and multiple minimum PP extrusion parameters from the multiple optimized PP extrusion parameter sets, and calculate to obtain multiple PP extrusion parameter difference amplitudes; extract multiple maximum TPV extrusion parameters and multiple minimum TPV extrusion parameters from the multiple optimized TPV extrusion parameter sets, and calculate to obtain multiple TPV basic parameter difference amplitudes; calculate the average of the multiple PP extrusion parameter difference amplitudes and the multiple TPV basic parameter difference amplitudes to obtain multiple parameter change amplitudes; extract the maximum compliance and the minimum compliance from the multiple optimized compliance sets, and calculate the difference percentage to obtain multiple compliance change amplitudes.

[0100] Reference below Figure 4 To describe the electronic device of the embodiment of the present application.

[0101] Based on the same inventive concept as the co-extrusion production control method using inner clamping strips in the aforementioned embodiment, the present application also provides a co-extrusion production control system using inner clamping strips, including: a processor, the processor is coupled to a memory, the memory is used to store a program, and when the program is executed by the processor, the system executes the steps of the method described in Example 1.

[0102] The electronic device 300 includes: a processor 302, a communication interface 303, and a memory 301. Optionally, the electronic device 300 may also include a bus architecture 304. The communication interface 303, the processor 302, and the memory 301 may be interconnected via the bus architecture 304; the bus architecture 304 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus architecture 304 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0103] The processor 302 may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the present application.

[0104] Communication interface 303, using any transceiver or other device, is used to communicate with other devices or communication networks, such as Ethernet, wireless access network, etc. ,Wireless LAN , wired access network, etc.

[0105] The memory 301 may be a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory. , CD-ROM or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory can be independent and connected to the processor via the bus architecture 304. The memory can also be integrated with the processor.

[0106] The memory 301 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 302. The processor 302 is used to execute the computer-executable instructions stored in the memory 301, thereby realizing the co-extrusion production control method with inner clip strips provided in the above embodiment of the present application.

[0107] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above-mentioned specific embodiments of this specification are described. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0108] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0109] This specification and the drawings are merely exemplary illustrations of the present application and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A co-extrusion production control method for an inner clip strip for a vehicle, characterized in that: The method is applied to a co-extrusion production device for an automotive inner clip strip, the device comprising a PP extruder unit and a TPV extruder unit, the PP skeleton extruded by the PP extruder unit penetrates into the TPV extruder unit and is co-extruded with the TPV to form a clip strip, the method comprising: Acquire the extrusion speed space of the co-extrusion production device, and acquire the PP extrusion parameter space and the TPV extrusion parameter space of the PP extruder unit and the TPV extruder unit; Generate a first extrusion speed in the extrusion speed space, optimize PP extrusion parameters and TPV extrusion parameters in the PP extrusion parameter space and TPV extrusion parameter space according to the first extrusion speed, and obtain a first optimized PP extrusion parameter set and a first optimized TPV extrusion parameter set, as well as a first optimized compliance set; Continue to randomly generate extrusion speeds, and optimize PP extrusion parameters and TPV extrusion parameters to obtain multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets, and multiple optimized compliance sets; According to the multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets and multiple optimized compliance sets, parameter change analysis and compliance change analysis are performed, and the optimal PP extrusion parameters and optimal TPV extrusion parameters in the optimized PP extrusion parameter set and the optimized TPV extrusion parameter set with the smallest parameter change amplitude and compliance change amplitude, as well as the corresponding optimal extrusion speed, are output to perform co-extrusion production control; Generating a first extrusion speed in the extrusion speed space, and optimizing PP extrusion parameters and TPV extrusion parameters in the PP extrusion parameter space and TPV extrusion parameter space according to the first extrusion speed, including: randomly generating a first extrusion speed in the extrusion speed space; Randomly generate multiple sets of first PP extrusion parameters and first TPV extrusion parameters in the PP extrusion parameter space and the TPV extrusion parameter space; Using each group of first PP extrusion parameters and first TPV extrusion parameters respectively, combined with the first extrusion speed, predict the specification compliance of the extruded clamping strip to obtain multiple first compliances; Screening out the first PP extrusion parameter and the first TPV extrusion parameter corresponding to the largest first compliance degree among the multiple first compliance degrees as the optimization direction, continuing to adjust and optimize the PP extrusion parameter and the TPV extrusion parameter, updating the optimization direction according to the compliance degree, and updating and retaining the PP extrusion parameter and the TPV extrusion parameter until the optimization converges; Outputting the multiple sets of PP extrusion parameters and TPV extrusion parameters that are finally retained as a first optimized PP extrusion parameter set and a first optimized TPV extrusion parameter set, and obtaining multiple compliances of the multiple sets of PP extrusion parameters and TPV extrusion parameters that are finally retained as a first optimized compliance set; According to the multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets and multiple optimized compliance sets, parameter change analysis and compliance change analysis are performed, and the optimal PP extrusion parameters and optimal TPV extrusion parameters in the optimized PP extrusion parameter set and the optimized TPV extrusion parameter set with the smallest parameter change amplitude and compliance change amplitude, as well as the corresponding optimal extrusion speed are output, including: Perform parameter change analysis according to the multiple optimized PP extrusion parameter sets and the multiple optimized TPV extrusion parameter sets to obtain multiple parameter change amplitudes, and perform compliance change analysis according to the multiple optimized compliance sets to obtain multiple compliance change amplitudes; Performing weighted calculation on the multiple parameter change amplitudes and the multiple compliance change amplitudes to obtain multiple comprehensive change amplitudes; Outputting the optimized PP extrusion parameter set and the optimized TPV extrusion parameter set corresponding to the smallest comprehensive change amplitude among the multiple comprehensive change amplitudes as the optimal PP extrusion parameter set and the optimal TPV extrusion parameter set; Outputting the optimal PP extrusion parameters and the optimal TPV extrusion parameters with the highest compliance in the optimal PP extrusion parameter set and the optimal TPV extrusion parameter set; Outputting the extrusion speeds corresponding to the optimal PP extrusion parameter set and the optimal TPV extrusion parameter set as the optimal extrusion speed, and performing co-extrusion production control in combination with the optimal PP extrusion parameters and the optimal TPV extrusion parameters; Screening out the first PP extrusion parameter and the first TPV extrusion parameter corresponding to the largest first compliance degree among the multiple first compliance degrees as the optimization direction, continuing to adjust and optimize the PP extrusion parameter and the TPV extrusion parameter, updating the optimization direction according to the compliance degree, and updating and retaining the PP extrusion parameter and the TPV extrusion parameter, including: Screening out a first PP extrusion parameter and a first TPV extrusion parameter corresponding to a maximum first compliance degree among the plurality of first compliance degrees as an optimization direction; According to the optimization direction as the adjustment direction, the other multiple groups of first PP extrusion parameters and first TPV extrusion parameters are adjusted to obtain multiple groups of second PP extrusion parameters and second TPV extrusion parameters; Using each group of second PP extrusion parameters and second TPV extrusion parameters respectively, combined with the first extrusion speed, predict the specification compliance of the extruded clamping strip to obtain multiple second compliances; According to the plurality of second compliances and the plurality of first compliances, the PP extrusion parameters and the extrusion parameters corresponding to the maximum compliance are screened out, updated as the optimization direction, and the plurality of groups of PP extrusion parameters and the extrusion parameters with the highest compliances are retained; Continue to adjust and optimize the PP extrusion parameters and TPV extrusion parameters, update the optimization direction according to the compliance, and update and retain the PP extrusion parameters and TPV extrusion parameters until the optimization converges; According to the multiple optimized PP extrusion parameter sets and the multiple optimized TPV extrusion parameter sets, parameter change analysis is performed to obtain multiple parameter change amplitudes; according to the multiple optimized compliance sets, compliance change analysis is performed to obtain multiple compliance change amplitudes, including: Extracting a plurality of maximum PP extrusion parameters and a plurality of minimum PP extrusion parameters from the plurality of optimized PP extrusion parameter sets, and calculating and obtaining a plurality of PP extrusion parameter difference amplitudes; Extracting a plurality of maximum TPV extrusion parameters and a plurality of minimum TPV extrusion parameters from the plurality of optimized TPV extrusion parameter sets, and calculating and obtaining a plurality of TPV extrusion parameter difference amplitudes; Calculating the average of the plurality of PP extrusion parameter difference amplitudes and the plurality of TPV extrusion parameter difference amplitudes to obtain a plurality of parameter change amplitudes; Extracting the maximum compliance and the minimum compliance in the multiple optimized compliance sets, and calculating the difference percentage to obtain multiple compliance change amplitudes; Each group of first PP extrusion parameters and first TPV extrusion parameters are respectively used, combined with the first extrusion speed, to predict the specification compliance of the extruded clamping strip, and obtain multiple first compliances, including: According to the co-extrusion production history data of the clamp strip, a sample PP extrusion parameter set, a sample TPV extrusion parameter set and a sample extrusion speed set are collected, and the specification similarity between the cross-sectional specifications of the clamp strip extruded under different sample PP extrusion parameters, sample TPV extrusion parameters and sample extrusion speeds and the standard cross-sectional specifications is collected and marked as a sample compliance set; Using the sample PP extrusion parameter set, the sample TPV extrusion parameter set and the sample extrusion speed set, combined with the sample compliance set, to train an extrusion specification compliance predictor; Each set of first PP extrusion parameters and first TPV extrusion parameters, combined with the first extrusion speed, is input into the extrusion specification compliance predictor, and a prediction output is used to obtain multiple first compliance levels.

2. The co-extrusion production control method of the vehicle inner strip according to claim 1, characterized in that: Obtaining the extrusion speed space of the co-extrusion production device, and obtaining the PP extrusion parameter space and the TPV extrusion parameter space of the PP extruder unit and the TPV extruder unit, including: Obtaining an extrusion speed space of the co-extrusion production device; Obtaining the PP extrusion temperature space and the PP extrusion pressure space of the PP extruder unit and the TPV extruder unit, as well as the TPV extrusion temperature space and the TPV extrusion pressure space; The PP extrusion temperature space and the PP extrusion pressure space are combined to obtain the PP extrusion parameter space, and the TPV extrusion temperature space and the TPV extrusion pressure space are combined to obtain the TPV extrusion parameter space.

3. The co-extrusion production control platform for automotive inner clips is characterized by: The platform is used to perform the steps of the method according to any one of claims 1 to 2, and the platform comprises: An extrusion parameter space acquisition module, which is used to acquire the extrusion speed space of the co-extrusion production device, and acquire the PP extrusion parameter space and the TPV extrusion parameter space of the PP extruder group and the TPV extruder group; A first extrusion parameter optimization module, the first extrusion parameter optimization module is used to generate a first extrusion speed in the extrusion speed space, and optimize the PP extrusion parameters and the TPV extrusion parameters in the PP extrusion parameter space and the TPV extrusion parameter space according to the first extrusion speed to obtain a first optimized PP extrusion parameter set and a first optimized TPV extrusion parameter set, as well as a first optimized compliance set; An extrusion parameter iteration optimization module, wherein the extrusion parameter iteration optimization module is used to continue to randomly generate extrusion speeds, and optimize PP extrusion parameters and TPV extrusion parameters to obtain multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets, and multiple optimized compliance sets; A co-extrusion production control module, wherein the co-extrusion production control module is used to perform parameter change analysis and compliance change analysis based on the multiple optimized PP extrusion parameter sets, multiple optimized TPV extrusion parameter sets and multiple optimized compliance sets, output the optimal PP extrusion parameters and optimal TPV extrusion parameters in the optimized PP extrusion parameter set and the optimized TPV extrusion parameter set with the smallest parameter change amplitude and compliance change amplitude, as well as the corresponding optimal extrusion speed, to perform co-extrusion production control.

4. An electronic device, characterized in that: include: A processor is coupled to a memory, wherein the memory is used to store a program, and when the program is executed by the processor, the system is enabled to perform the steps of the method according to any one of claims 1 to 2.

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