A molding control method and system for plastic cover

Abstract

The present invention relates to the field of plastic cover molding technology, and discloses a molding control method and system for plastic covers. The system includes: an initial parameter determination module configured to determine the plastic cover to be molded, collect raw material data of the plastic cover to be molded, and determine the initial mold temperature setting value of the molding mold based on the raw material data; a judgment module configured to collect historical manufacturing data of the plastic cover to be molded, analyze the historical manufacturing data, and determine whether to adjust the initial mold temperature setting value based on the analysis result; and a processing module configured to, when the judgment module determines that the initial mold temperature setting value should be adjusted, collect cooling cycle data and ambient temperature data of the plastic cover to be molded, determine an adjustment coefficient for the initial mold temperature setting value based on the cooling cycle data and ambient temperature data, and obtain a final mold temperature setting value. The present invention improves the stability of the molding process and the molding quality of the plastic cover.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic cover molding, and in particular to a molding control method and system for plastic covers. Background Art

[0002] During the production of plastic caps, mold temperature plays a crucial role in determining the quality of the finished product. Traditionally, mold temperature control relies on operator experience and manual adjustments. This leads to inaccuracies and instability in temperature control, which in turn impacts molding efficiency and product quality. To improve the quality of plastic caps, modern production technologies have introduced advanced temperature control systems. These systems monitor mold temperature in real time and automatically adjust it to ensure it remains within the optimal molding range. This significantly improves molding efficiency, reduces scrap, and extends mold life. Automated temperature control also reduces reliance on operator experience, making the entire production process more standardized and controllable, thereby ensuring high quality and consistency in finished plastic caps.

[0003] Therefore, it is necessary to design a molding control method and system for plastic covers to solve the problems existing in the current technology. Summary of the Invention

[0004] In view of this, the present invention proposes a molding control method and system for plastic covers, aiming to achieve precise and automated control of mold temperature to improve the molding quality and production efficiency of the plastic covers.

[0005] In one aspect, the present invention provides a molding control system for a plastic cover, comprising:

[0006] an initial parameter determination module configured to determine a plastic cover to be formed, collect raw material data of the plastic cover to be formed, and determine an initial mold temperature setting value of the forming mold based on the raw material data;

[0007] a judgment module configured to collect historical manufacturing data of the plastic cover to be molded, analyze the historical manufacturing data, and determine whether to adjust the initial mold temperature setting value based on the analysis result;

[0008] The processing module is configured to collect cooling cycle data and ambient temperature data of the plastic cover to be formed when the judgment module determines that the initial mold temperature setting value needs to be adjusted, determine an adjustment coefficient of the initial mold temperature setting value based on the cooling cycle data and ambient temperature data, and obtain a final mold temperature setting value.

[0009] Furthermore, when the initial parameter determination module determines the initial mold temperature setting value of the molding mold according to the raw material data, it includes:

[0010] Analyzing the raw material data to obtain the raw material type and injection molding cycle;

[0011] Determining a basic mold temperature setting value of the forming mold according to the type of the raw material;

[0012] Collecting wall thickness data of the plastic cover to be formed, and performing feature extraction on the wall thickness data to obtain a wall thickness feature value;

[0013] Determining whether to compensate the basic mold temperature setting value according to the wall thickness characteristic value;

[0014] If so, the compensation coefficient of the basic mold temperature setting value is determined according to the injection cycle and the wall thickness characteristic value, and the initial mold temperature setting value is obtained.

[0015] Furthermore, when the initial parameter determination module determines the basic mold temperature setting value of the molding mold according to the raw material type, it includes:

[0016] The raw material types include polypropylene material, polyethylene material and polystyrene material;

[0017] When the raw material type is the polypropylene material, determining the basic mold temperature setting value of the forming mold to be a first temperature value;

[0018] When the raw material type is the polyethylene material, determining the basic mold temperature setting value of the forming mold to be a second temperature value;

[0019] When the raw material type is the polystyrene material, the basic mold temperature setting value of the molding mold is determined to be a third temperature value.

[0020] Furthermore, when the initial parameter determination module determines whether to compensate the basic mold temperature setting value according to the wall thickness characteristic value, it includes:

[0021] Obtaining a standard wall thickness value corresponding to the wall thickness characteristic value;

[0022] Calculating the difference between the characteristic value of the wall thickness and the standard value of the wall thickness, and recording it as the wall thickness difference;

[0023] Comparing the wall thickness difference with a wall thickness difference threshold, and determining whether to compensate for the basic mold temperature setting value based on the comparison result;

[0024] If the wall thickness difference is greater than or equal to the wall thickness difference threshold, it is determined to compensate the basic mold temperature setting value;

[0025] Otherwise, it is determined that the basic mold temperature setting value is not compensated, and the basic mold temperature setting value is used as the initial mold temperature setting value.

[0026] Furthermore, the initial parameter determination module determines the compensation coefficient of the basic mold temperature setting value according to the injection molding cycle and the wall thickness characteristic value, and obtains the initial mold temperature setting value, including:

[0027] Combining the injection molding cycle and wall thickness characteristic values into a compensation characteristic group;

[0028] Matching the compensation feature group with a preset compensation coefficient mapping table to obtain a compensation coefficient corresponding to the compensation feature group;

[0029] The product of the compensation coefficient and the basic mold temperature setting value is recorded as the initial mold temperature setting value.

[0030] Furthermore, the judgment module analyzes the historical manufacturing data and determines whether to adjust the initial mold temperature setting value based on the analysis result, including:

[0031] parsing the historical manufacturing data to obtain historical normal manufacturing records and historical abnormal manufacturing records related to the temperature of the forming mold;

[0032] Classifying the historical abnormal manufacturing records, obtaining the number of occurrences of each type of the historical abnormal manufacturing records, and calculating the historical manufacturing abnormality value;

[0033] The historical manufacturing abnormality value is compared with the historical manufacturing abnormality threshold, and it is determined whether to adjust the initial mold temperature setting value according to the comparison result.

[0034] Furthermore, the judgment module compares the historical manufacturing abnormality value with the historical manufacturing abnormality threshold value, and judges whether to adjust the initial mold temperature setting value according to the comparison result, including:

[0035] When the historical manufacturing abnormality value is greater than or equal to the historical manufacturing abnormality threshold, determining to adjust the initial mold temperature setting value;

[0036] When the historical manufacturing abnormality value is less than the historical manufacturing abnormality threshold, it is determined that the initial mold temperature setting value is not adjusted.

[0037] Furthermore, when the processing module determines the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and the ambient temperature data and obtains the final mold temperature setting value, it includes:

[0038] Extracting features from the cooling cycle data and the ambient temperature data to obtain cooling cycle feature values and ambient temperature feature values;

[0039] Combining the cooling cycle characteristic value and the ambient temperature characteristic value into a characteristic combination;

[0040] Comparing the feature combination with historical data, and determining an adjustment coefficient of the initial mold temperature setting value according to the comparison result;

[0041] When the historical data contains a historical feature combination identical to the feature combination, the historical adjustment coefficient corresponding to the historical feature combination is used as the adjustment coefficient, and the product of the historical adjustment coefficient and the initial mold temperature setting value is used as the final mold temperature setting value;

[0042] When there is no historical feature combination identical to the feature combination in the historical data, the adjustment coefficient of the initial mold temperature setting value is determined according to the cooling cycle feature value and the ambient temperature feature value.

[0043] Furthermore, when the processing module determines the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle characteristic value and the ambient temperature characteristic value, it includes:

[0044] Performing weighted calculation on the cooling cycle characteristic value and the ambient temperature characteristic value to obtain a comprehensive temperature impact factor;

[0045] Comparing the comprehensive temperature influence factor with a first comprehensive temperature influence factor and a second comprehensive temperature influence factor, and determining an adjustment coefficient for the initial mold temperature setting value based on the comparison result; wherein the first comprehensive temperature influence factor is less than the second comprehensive temperature influence factor;

[0046] Setting an adjustment coefficient interval, wherein the adjustment coefficient interval includes a first adjustment coefficient, a second adjustment coefficient, and a third adjustment coefficient;

[0047] When the comprehensive temperature influence factor is less than or equal to the first comprehensive temperature influence factor, determining the adjustment coefficient to be the first adjustment coefficient;

[0048] When the comprehensive temperature influence factor is greater than the first comprehensive temperature influence factor and less than or equal to the second comprehensive temperature influence factor, determining the adjustment coefficient to be the second adjustment coefficient;

[0049] When the comprehensive temperature influence factor is greater than the second comprehensive temperature influence factor, determining the adjustment coefficient to be the third adjustment coefficient;

[0050] The product of the adjustment coefficient and the initial mold temperature setting value is used as the final mold temperature setting value.

[0051] Compared with the prior art, the beneficial effect of the present invention is that the beneficial effect of the molding control system for plastic covers provided by the present invention is that through the synergistic effect of each module, the precise control of the mold temperature during the molding process of the plastic cover is achieved. First, the initial parameter determination module determines a basic mold temperature setting value based on the raw material data. This step ensures that different types of raw materials can obtain a suitable initial molding temperature. Then, the judgment module further makes a fine adjustment to the initial mold temperature setting value by analyzing the historical manufacturing data, which helps to avoid temperature problems that have occurred in past manufacturing and improves the stability and reliability of the manufacturing process. Finally, the processing module comprehensively considers real-time data such as the cooling cycle and ambient temperature, and makes a final adjustment to the mold temperature, ensuring that the temperature control during the molding process is both accurate and flexible.

[0052] This invention not only significantly improves the molding quality of plastic caps and reduces the defective rate caused by improper temperature, but also optimizes production efficiency, shortens the molding cycle, and reduces energy consumption. In addition, the system's highly automated nature reduces manual intervention and operational difficulty, making the entire production process smoother and more efficient.

[0053] In another aspect, the present invention further provides a molding control method for a plastic cover, comprising the following steps:

[0054] S100: determining a plastic cover to be formed, collecting raw material data of the plastic cover to be formed, and determining an initial mold temperature setting value of the forming mold according to the raw material data;

[0055] S200: collecting historical manufacturing data of the plastic cover to be molded, analyzing the historical manufacturing data, and determining whether to adjust the initial mold temperature setting value based on the analysis result;

[0056] S300: When the judgment module determines that the initial mold temperature setting value needs to be adjusted, the cooling cycle data and the ambient temperature data of the plastic cover to be formed are collected, and an adjustment coefficient of the initial mold temperature setting value is determined based on the cooling cycle data and the ambient temperature data to obtain a final mold temperature setting value.

[0057] It is understandable that the above-mentioned molding control method and system for plastic covers have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0059] Figure 1 A structural block diagram of a molding control system for a plastic cover provided by an embodiment of the present invention;

[0060] Figure 2 This is a flow chart of a molding control method for a plastic cover provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0061] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0062] See Figure 1 As shown, in some embodiments of the present application, this embodiment provides a molding control system for a plastic cover, comprising:

[0063] an initial parameter determination module configured to determine a plastic cover to be formed, collect raw material data of the plastic cover to be formed, and determine an initial mold temperature setting value of the forming mold based on the raw material data;

[0064] a judgment module configured to collect historical manufacturing data of the plastic cover to be molded, analyze the historical manufacturing data, and determine whether to adjust the initial mold temperature setting value based on the analysis result;

[0065] The processing module is configured to collect cooling cycle data and ambient temperature data of the plastic cover to be formed when the judgment module determines that the initial mold temperature setting value needs to be adjusted, determine an adjustment coefficient of the initial mold temperature setting value based on the cooling cycle data and ambient temperature data, and obtain a final mold temperature setting value.

[0066] It is understandable that the beneficial effect of the molding control system for plastic covers provided by this embodiment is that through the synergistic effect of each module, it is possible to achieve precise control of the mold temperature during the molding process of the plastic cover. First, the initial parameter determination module determines a basic mold temperature setting value based on the raw material data. This step ensures that different types of raw materials can obtain a suitable initial molding temperature. Then, the judgment module further makes a fine adjustment to the initial mold temperature setting value by analyzing historical manufacturing data. This helps to avoid temperature problems that have occurred in past manufacturing and improves the stability and reliability of the manufacturing process. Finally, the processing module comprehensively considers real-time data such as the cooling cycle and ambient temperature, and makes a final adjustment to the mold temperature, ensuring that the temperature control during the molding process is both accurate and flexible.

[0067] As can be seen, this embodiment not only significantly improves the molding quality of the plastic cap and reduces the defective rate caused by improper temperature, but also optimizes production efficiency, shortens the molding cycle, and reduces energy consumption. Furthermore, the system's highly automated nature reduces manual intervention and operational difficulty, making the entire production process smoother and more efficient.

[0068] Specifically, when the initial parameter determination module determines the initial mold temperature setting value of the molding mold according to the raw material data, it includes:

[0069] Analyzing the raw material data to obtain the raw material type and injection molding cycle;

[0070] Determining a basic mold temperature setting value of the forming mold according to the type of the raw material;

[0071] Collecting wall thickness data of the plastic cover to be formed, and performing feature extraction on the wall thickness data to obtain a wall thickness feature value;

[0072] Determining whether to compensate the basic mold temperature setting value according to the wall thickness characteristic value;

[0073] If so, the compensation coefficient of the basic mold temperature setting value is determined according to the injection cycle and the wall thickness characteristic value, and the initial mold temperature setting value is obtained.

[0074] In this embodiment, the wall thickness characteristic value refers to the statistical characteristics of the wall thickness data, such as the average value, maximum value, minimum value or standard deviation, which can reflect the wall thickness distribution of the plastic cover to be molded.

[0075] In this embodiment, the characteristic value of the wall thickness is preferably the average value of the wall thickness.

[0076] It can be understood that the average wall thickness, as a characteristic value, can more accurately reflect the overall wall thickness of the plastic cover, thereby guiding the compensation adjustment of the mold temperature. When the average wall thickness is large, it means that the plastic cover is thicker, requiring a longer cooling time and a higher mold temperature to ensure molding quality; conversely, when the average wall thickness is small, the mold temperature can be appropriately lowered to shorten the molding cycle. By compensating the basic mold temperature setting value according to the average wall thickness, the accuracy and adaptability of the mold temperature control can be further improved. In addition, the injection molding cycle is also an important factor affecting the mold temperature setting. The length of the injection molding cycle directly determines the cooling time of the plastic melt in the mold, thereby affecting the molding quality. Therefore, when determining the initial mold temperature setting value, it is necessary to comprehensively consider multiple factors such as the raw material type, wall thickness characteristic value and injection molding cycle to ensure that the final mold temperature obtained can not only meet the molding requirements but also improve production efficiency and product quality.

[0077] Specifically, when the initial parameter determination module determines the basic mold temperature setting value of the molding mold according to the raw material type, it includes:

[0078] The raw material types include polypropylene material, polyethylene material and polystyrene material;

[0079] When the raw material type is the polypropylene material, determining the basic mold temperature setting value of the forming mold to be a first temperature value;

[0080] When the raw material type is the polyethylene material, determining the basic mold temperature setting value of the forming mold to be a second temperature value;

[0081] When the raw material type is the polystyrene material, the basic mold temperature setting value of the molding mold is determined to be a third temperature value.

[0082] It's understandable that different plastic raw materials have different thermal properties and molding characteristics. Therefore, when selecting basic mold temperature setpoints, precise matching is required for the raw material type. For example, polypropylene, due to its high melting point and good thermal stability, generally requires a higher mold temperature to ensure molding quality. Polyethylene, on the other hand, due to its lower melting point and good fluidity, can appropriately lower the mold temperature. Polystyrene, due to its high heat sensitivity and shrinkage, requires a moderate mold temperature to avoid molding defects. By setting different basic mold temperature setpoints for different raw material types, the stability of the molding process and the molding quality of the plastic cap can be further improved. In this embodiment, the first, second, and third temperature values are optimized values derived from extensive experimental data and production experience, ensuring optimal mold temperature control for different raw material types during the molding process. This method of selecting basic mold temperature setpoints based on raw material type not only improves the accuracy and flexibility of the molding process but also helps optimize production efficiency and product quality.

[0083] Specifically, when the initial parameter determination module determines whether to compensate the basic mold temperature setting value according to the wall thickness characteristic value, it includes:

[0084] Obtaining a standard wall thickness value corresponding to the wall thickness characteristic value;

[0085] Calculating the difference between the characteristic value of the wall thickness and the standard value of the wall thickness, and recording it as the wall thickness difference;

[0086] Comparing the wall thickness difference with a wall thickness difference threshold, and determining whether to compensate for the basic mold temperature setting value based on the comparison result;

[0087] If the wall thickness difference is greater than or equal to the wall thickness difference threshold, it is determined to compensate the basic mold temperature setting value;

[0088] Otherwise, it is determined that the basic mold temperature setting value is not compensated, and the basic mold temperature setting value is used as the initial mold temperature setting value.

[0089] It is understandable that when the wall thickness difference is within the preset range, it means that the wall thickness distribution of the plastic cover to be molded is relatively uniform. At this time, the initial temperature setting value of the mold is already relatively appropriate and no additional compensation adjustment is required. However, when the wall thickness difference is greater than the set threshold, it means that there is a large unevenness in the wall thickness distribution of the plastic cover, which may be due to differences in the fluidity of the raw materials, design problems of the mold structure, or improper setting of process parameters during the molding process. At this time, it is necessary to compensate the basic mold temperature setting value to adjust the mold temperature and ensure the stability and consistency of the molding quality.

[0090] Specifically, when the initial parameter determination module determines the compensation coefficient of the basic mold temperature setting value according to the injection molding cycle and the wall thickness characteristic value and obtains the initial mold temperature setting value, it includes:

[0091] Combining the injection molding cycle and wall thickness characteristic values into a compensation characteristic group;

[0092] Matching the compensation feature group with a preset compensation coefficient mapping table to obtain a compensation coefficient corresponding to the compensation feature group;

[0093] The product of the compensation coefficient and the basic mold temperature setting value is recorded as the initial mold temperature setting value.

[0094] In this embodiment, the compensation feature group = (injection cycle, wall thickness characteristic value) = (c, d); when the value of (c, d) is (10, 0.3), the corresponding preferred value of the compensation coefficient is 1.2; when the value of (c, d) is (15, 0.5), the corresponding preferred value of the compensation coefficient is 1.3; and so on. It can be understood that different combinations of injection cycle and wall thickness characteristic values reflect the cooling time and wall thickness distribution of the plastic melt in the mold, and these factors jointly affect the compensation requirements of the mold temperature. By pre-setting the compensation coefficient mapping table, the appropriate compensation coefficient can be quickly determined for different combinations, thereby achieving precise adjustment of the mold temperature. This method of temperature compensation based on the compensation feature group and the preset compensation coefficient mapping table not only improves the flexibility and adaptability of the molding process, but also helps to improve the molding quality and production efficiency of the plastic cover.

[0095] Specifically, the judgment module analyzes the historical manufacturing data and determines whether to adjust the initial mold temperature setting value based on the analysis result, including:

[0096] parsing the historical manufacturing data to obtain historical normal manufacturing records and historical abnormal manufacturing records related to the temperature of the forming mold;

[0097] Classifying the historical abnormal manufacturing records, obtaining the number of occurrences of each type of the historical abnormal manufacturing records, and calculating the historical manufacturing abnormality value;

[0098] The historical manufacturing abnormality value is compared with the historical manufacturing abnormality threshold, and it is determined whether to adjust the initial mold temperature setting value according to the comparison result.

[0099] In this embodiment, historical normal manufacturing records refer to data records of plastic caps that were successfully manufactured under the same or similar molding conditions and met quality standards over a period of time. This data records key molding parameters such as mold temperature, injection pressure, and injection speed, as well as the test results of the final product.

[0100] In this embodiment, the historical abnormal manufacturing records related to the temperature of the molding die refer to data records related to substandard product quality due to excessively high or low mold temperature over a period of time in the past.

[0101] In this embodiment, the types of historical abnormal manufacturing records include deformation, cracking, or surface defects of the plastic cover.

[0102] In this embodiment, the historical manufacturing anomaly value is calculated by multiplying the number of occurrences of each type of historical abnormal manufacturing record by the corresponding weight coefficient and summing the products to obtain the historical manufacturing anomaly value. The weight coefficient can be set based on the severity of the impact of different types of abnormal manufacturing records on product quality. For example, the weight coefficient corresponding to severe defects such as plastic cover deformation and cracking can be set higher, while the weight coefficient corresponding to minor defects such as surface defects can be set lower. This setting can more accurately reflect the problems with mold temperature control during the historical manufacturing process, providing a strong basis for subsequent temperature adjustments.

[0103] Specifically, the judgment module compares the historical manufacturing abnormality value with the historical manufacturing abnormality threshold, and determines whether to adjust the initial mold temperature setting value according to the comparison result, including:

[0104] When the historical manufacturing abnormality value is greater than or equal to the historical manufacturing abnormality threshold, determining to adjust the initial mold temperature setting value;

[0105] When the historical manufacturing abnormality value is less than the historical manufacturing abnormality threshold, it is determined that the initial mold temperature setting value is not adjusted.

[0106] It is understandable that when the historical manufacturing anomaly value exceeds the preset threshold, it means that there were major problems in the control of the mold temperature in the past manufacturing process, which may have led to unstable product quality or an increase in the defective rate. At this time, it is necessary to adjust the initial mold temperature setting value to improve the control effect of the mold temperature and improve the molding quality and production efficiency of the product. On the contrary, when the historical manufacturing anomaly value is below the threshold, it means that the control of the mold temperature is relatively stable. At this time, there is no need to adjust the initial mold temperature setting value to avoid unnecessary production fluctuations and cost increases. Through this intelligent judgment based on historical manufacturing data, the molding control system provided in this embodiment can achieve precise control of the mold temperature, thereby ensuring the molding quality and production efficiency of the plastic cover.

[0107] Specifically, when the processing module determines the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and the ambient temperature data and obtains the final mold temperature setting value, it includes:

[0108] Extracting features from the cooling cycle data and the ambient temperature data to obtain cooling cycle feature values and ambient temperature feature values;

[0109] Combining the cooling cycle characteristic value and the ambient temperature characteristic value into a characteristic combination;

[0110] Comparing the feature combination with historical data, and determining an adjustment coefficient of the initial mold temperature setting value according to the comparison result;

[0111] When the historical data contains a historical feature combination identical to the feature combination, the historical adjustment coefficient corresponding to the historical feature combination is used as the adjustment coefficient, and the product of the historical adjustment coefficient and the initial mold temperature setting value is used as the final mold temperature setting value;

[0112] When there is no historical feature combination identical to the feature combination in the historical data, the adjustment coefficient of the initial mold temperature setting value is determined according to the cooling cycle feature value and the ambient temperature feature value.

[0113] In this embodiment, the cooling cycle characteristic value refers to the statistical characteristics of the cooling cycle data, such as the mean, maximum value, or standard deviation. These characteristics can reflect the cooling time distribution of the plastic melt in the mold. The ambient temperature characteristic value refers to the statistical characteristics of the ambient temperature data, such as the mean or fluctuation range. These characteristics can reflect the ambient temperature changes at the production site.

[0114] In this embodiment, the cooling cycle characteristic value is preferably the cooling cycle average value.

[0115] In this embodiment, the ambient temperature characteristic value is preferably the average ambient temperature value.

[0116] As can be understood, the average cooling cycle value, as a characteristic value, can more accurately reflect the average cooling time of the plastic melt in the mold, while the average ambient temperature value can reflect the average temperature conditions at the production site. The combination of these two characteristic values comprehensively reflects the extent to which the mold temperature is affected by the cooling cycle and ambient temperature, providing a strong basis for final mold temperature adjustment. If the historical data contains a feature combination identical to the current one, it indicates that the mold temperature has been adjusted for the same cooling cycle and ambient temperature conditions in past production runs, achieving good molding results. In this case, the historical adjustment coefficient corresponding to this historical feature combination can be directly used as the current adjustment coefficient to quickly determine the final mold temperature setpoint and improve production efficiency. If the historical data does not contain the same feature combination, an appropriate adjustment coefficient must be determined based on the current cooling cycle and ambient temperature characteristic values, taking into account the cooling requirements of the plastic melt and the ambient temperature variations at the production site, to ensure that the mold temperature meets molding requirements. This comprehensive judgment method based on real-time and historical data not only improves the accuracy and flexibility of mold temperature control but also helps optimize production efficiency and product quality.

[0117] Specifically, when the processing module determines the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle characteristic value and the ambient temperature characteristic value, it includes:

[0118] Performing weighted calculation on the cooling cycle characteristic value and the ambient temperature characteristic value to obtain a comprehensive temperature impact factor;

[0119] Comparing the comprehensive temperature influence factor with a first comprehensive temperature influence factor and a second comprehensive temperature influence factor, and determining an adjustment coefficient for the initial mold temperature setting value based on the comparison result; wherein the first comprehensive temperature influence factor is less than the second comprehensive temperature influence factor;

[0120] Setting an adjustment coefficient interval, wherein the adjustment coefficient interval includes a first adjustment coefficient, a second adjustment coefficient, and a third adjustment coefficient;

[0121] When the comprehensive temperature influence factor is less than or equal to the first comprehensive temperature influence factor, determining the adjustment coefficient to be the first adjustment coefficient;

[0122] When the comprehensive temperature influence factor is greater than the first comprehensive temperature influence factor and less than or equal to the second comprehensive temperature influence factor, determining the adjustment coefficient to be the second adjustment coefficient;

[0123] When the comprehensive temperature influence factor is greater than the second comprehensive temperature influence factor, determining the adjustment coefficient to be the third adjustment coefficient;

[0124] The product of the adjustment coefficient and the initial mold temperature setting value is used as the final mold temperature setting value.

[0125] In this embodiment, the first adjustment coefficient is less than the second adjustment coefficient and is less than the third adjustment coefficient.

[0126] It can be understood that the size of the comprehensive temperature influence factor reflects the degree of influence of the cooling cycle and the ambient temperature on the mold temperature. When the comprehensive temperature influence factor is small, it means that the cooling cycle is short and the ambient temperature is low. At this time, the heat dissipation effect of the mold is better, so it is necessary to appropriately reduce the adjustment coefficient to avoid the mold temperature being too low, causing the plastic melt to solidify too quickly, affecting the molding quality. When the comprehensive temperature influence factor is large, it means that the cooling cycle is long and the ambient temperature is high. At this time, the heat dissipation effect of the mold is poor, so it is necessary to appropriately increase the adjustment coefficient to increase the mold temperature and ensure that the plastic melt can be fully cooled and solidified, thereby obtaining a good molding effect. Through this method of determining the adjustment coefficient based on the comprehensive temperature influence factor, the molding control system provided in this embodiment can achieve fine adjustment of the mold temperature, further improving the stability of the molding process and the molding quality of the plastic cover.

[0127] See Figure 2 As shown, in some embodiments of the present application, this embodiment provides a molding control method for a plastic cover, comprising the following steps:

[0128] S100: determining a plastic cover to be formed, collecting raw material data of the plastic cover to be formed, and determining an initial mold temperature setting value of the forming mold according to the raw material data;

[0129] S200: collecting historical manufacturing data of the plastic cover to be molded, analyzing the historical manufacturing data, and determining whether to adjust the initial mold temperature setting value based on the analysis result;

[0130] S300: When the judgment module determines that the initial mold temperature setting value needs to be adjusted, the cooling cycle data and the ambient temperature data of the plastic cover to be formed are collected, and an adjustment coefficient of the initial mold temperature setting value is determined based on the cooling cycle data and the ambient temperature data to obtain a final mold temperature setting value.

[0131] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0132] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0133] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0134] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A molding control system for plastic covers, characterized in that: include: an initial parameter determination module configured to determine a plastic cover to be formed, collect raw material data of the plastic cover to be formed, and determine an initial mold temperature setting value of the forming mold based on the raw material data; a judgment module configured to collect historical manufacturing data of the plastic cover to be molded, analyze the historical manufacturing data, and determine whether to adjust the initial mold temperature setting value based on the analysis result; a processing module configured to, when the judgment module determines that the initial mold temperature setting value needs to be adjusted, collect cooling cycle data and ambient temperature data of the plastic cover to be molded, determine an adjustment coefficient for the initial mold temperature setting value based on the cooling cycle data and ambient temperature data, and obtain a final mold temperature setting value; The judgment module analyzes the historical manufacturing data and determines whether to adjust the initial mold temperature setting value based on the analysis result, including: parsing the historical manufacturing data to obtain historical normal manufacturing records and historical abnormal manufacturing records related to the temperature of the forming mold; Classifying the historical abnormal manufacturing records, obtaining the number of occurrences of each type of the historical abnormal manufacturing records, and calculating the historical manufacturing abnormality value; Comparing the historical manufacturing abnormality value with the historical manufacturing abnormality threshold, and determining whether to adjust the initial mold temperature setting value according to the comparison result; The judgment module compares the historical manufacturing abnormality value with the historical manufacturing abnormality threshold, and judges whether to adjust the initial mold temperature setting value according to the comparison result, including: When the historical manufacturing abnormality value is greater than or equal to the historical manufacturing abnormality threshold, determining to adjust the initial mold temperature setting value; When the historical manufacturing abnormality value is less than the historical manufacturing abnormality threshold, determining not to adjust the initial mold temperature setting value; When the processing module determines the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and the ambient temperature data and obtains the final mold temperature setting value, it includes: Extracting features from the cooling cycle data and the ambient temperature data to obtain cooling cycle feature values and ambient temperature feature values; Combining the cooling cycle characteristic value and the ambient temperature characteristic value into a characteristic combination; Comparing the feature combination with historical data, and determining an adjustment coefficient of the initial mold temperature setting value according to the comparison result; When the historical data contains a historical feature combination identical to the feature combination, the historical adjustment coefficient corresponding to the historical feature combination is used as the adjustment coefficient, and the product of the historical adjustment coefficient and the initial mold temperature setting value is used as the final mold temperature setting value; When there is no historical feature combination identical to the feature combination in the historical data, the adjustment coefficient of the initial mold temperature setting value is determined according to the cooling cycle feature value and the ambient temperature feature value.

2. The molding control system for plastic covers according to claim 1, characterized in that: When the initial parameter determination module determines the initial mold temperature setting value of the molding mold according to the raw material data, it includes: Analyzing the raw material data to obtain the raw material type and injection molding cycle; Determining a basic mold temperature setting value of the forming mold according to the type of the raw material; Collecting wall thickness data of the plastic cover to be formed, and performing feature extraction on the wall thickness data to obtain a wall thickness feature value; Determining whether to compensate the basic mold temperature setting value according to the wall thickness characteristic value; If so, the compensation coefficient of the basic mold temperature setting value is determined according to the injection cycle and the wall thickness characteristic value, and the initial mold temperature setting value is obtained.

3. The molding control system for plastic covers according to claim 2, characterized in that: When the initial parameter determination module determines the basic mold temperature setting value of the forming mold according to the raw material type, it includes: The raw material types include polypropylene material, polyethylene material and polystyrene material; When the raw material type is the polypropylene material, determining the basic mold temperature setting value of the forming mold to be a first temperature value; When the raw material type is the polyethylene material, determining the basic mold temperature setting value of the forming mold to be a second temperature value; When the raw material type is the polystyrene material, the basic mold temperature setting value of the molding mold is determined to be a third temperature value.

4. The molding control system for plastic covers according to claim 3, characterized in that: When the initial parameter determination module determines whether to compensate the basic mold temperature setting value according to the wall thickness characteristic value, it includes: Obtaining a standard wall thickness value corresponding to the wall thickness characteristic value; Calculating the difference between the characteristic value of the wall thickness and the standard value of the wall thickness, and recording it as the wall thickness difference; Comparing the wall thickness difference with a wall thickness difference threshold, and determining whether to compensate for the basic mold temperature setting value based on the comparison result; If the wall thickness difference is greater than or equal to the wall thickness difference threshold, it is determined to compensate the basic mold temperature setting value; Otherwise, it is determined that the basic mold temperature setting value is not compensated, and the basic mold temperature setting value is used as the initial mold temperature setting value.

5. The molding control system for plastic covers according to claim 4, characterized in that: When the initial parameter determination module determines the compensation coefficient of the basic mold temperature setting value according to the injection cycle and the wall thickness characteristic value and obtains the initial mold temperature setting value, it includes: Combining the injection molding cycle and wall thickness characteristic values into a compensation characteristic group; Matching the compensation feature group with a preset compensation coefficient mapping table to obtain a compensation coefficient corresponding to the compensation feature group; The product of the compensation coefficient and the basic mold temperature setting value is recorded as the initial mold temperature setting value.

6. The molding control system for plastic covers according to claim 5, characterized in that: When the processing module determines the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle characteristic value and the ambient temperature characteristic value, it includes: Performing weighted calculation on the cooling cycle characteristic value and the ambient temperature characteristic value to obtain a comprehensive temperature impact factor; Comparing the comprehensive temperature influence factor with a first comprehensive temperature influence factor and a second comprehensive temperature influence factor, and determining an adjustment coefficient for the initial mold temperature setting value based on the comparison result; wherein the first comprehensive temperature influence factor is less than the second comprehensive temperature influence factor; Setting an adjustment coefficient interval, wherein the adjustment coefficient interval includes a first adjustment coefficient, a second adjustment coefficient, and a third adjustment coefficient; When the comprehensive temperature influence factor is less than or equal to the first comprehensive temperature influence factor, determining the adjustment coefficient to be the first adjustment coefficient; When the comprehensive temperature influence factor is greater than the first comprehensive temperature influence factor and less than or equal to the second comprehensive temperature influence factor, determining the adjustment coefficient to be the second adjustment coefficient; When the comprehensive temperature influence factor is greater than the second comprehensive temperature influence factor, determining the adjustment coefficient to be the third adjustment coefficient; The product of the adjustment coefficient and the initial mold temperature setting value is used as the final mold temperature setting value.

7. A molding control method for a plastic cover, applied to the molding control system for a plastic cover according to any one of claims 1 to 6, characterized in that: include: Determining a plastic cover to be formed, collecting raw material data of the plastic cover to be formed, and determining an initial mold temperature setting value of the forming mold based on the raw material data; collecting historical manufacturing data of the plastic cover to be molded, analyzing the historical manufacturing data, and determining whether to adjust the initial mold temperature setting value based on the analysis result; When the judgment module determines that the initial mold temperature setting value needs to be adjusted, the cooling cycle data and the ambient temperature data of the plastic cover to be formed are collected, and the adjustment coefficient of the initial mold temperature setting value is determined based on the cooling cycle data and the ambient temperature data to obtain the final mold temperature setting value.

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