Forming control method and system for plastic cover

Abstract

The invention relates to the technical field of plastic cover forming, and discloses a forming control method and system for a plastic cover, and the system comprises an initial parameter determination module which is configured to determine a to-be-formed plastic cover, collect raw material data of the to-be-formed plastic cover, and determine an initial mold temperature set value of a forming mold according to the raw material data; the judgment module is configured to collect historical manufacturing data of the to-be-formed plastic cover, analyze the historical manufacturing data and judge whether the initial mold temperature set value is adjusted or not based on an analysis result; and the processing module is configured to collect cooling cycle data and environment temperature data of the to-be-formed plastic cover when the judgment module judges to adjust the initial mold temperature set value, determine an adjustment coefficient of the initial mold temperature set value according to the cooling cycle data and the environment temperature data, and obtain a final mold temperature set value. The stability of the forming process and the forming quality of the plastic cover are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic cap molding, and more particularly, to a molding control method and system for plastic caps. Background Art

[0002] During the production process of plastic caps, the temperature of the mold has a crucial impact on the molding quality of the plastic caps. In the traditional plastic cap molding process, the regulation of the mold temperature often depends on the experience and manual adjustment of the operator, which leads to inaccuracy and instability in temperature control, thereby affecting the molding efficiency and product quality of the plastic caps. To improve the production quality of plastic caps, advanced temperature control systems have been introduced in modern production technologies. These systems can monitor the temperature of the mold in real time and automatically adjust it to ensure that the temperature remains within the optimal molding range. In this way, the molding efficiency of plastic caps can be significantly improved, the rejection rate can be reduced, and at the same time, the service life of the mold can be extended. In addition, automated temperature control also reduces the dependence on the experience of operators, making the entire production process more standardized and controllable, thus ensuring the high quality and consistency of plastic cap products.

[0003] Therefore, it is necessary to design a molding control method and system for plastic caps 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 caps, aiming to achieve precise and automated control of the mold temperature to improve the molding quality and production efficiency of plastic caps.

[0005] On the one hand, the present invention proposes a molding control system for plastic caps, including:

[0006] An initial parameter determination module, configured to determine a plastic cap to be molded, collect raw material data of the plastic cap to be molded, and determine an initial mold temperature setting value of the molding mold according to the raw material data;

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

[0008] A processing module, configured to, when the judgment module determines to adjust the initial mold temperature setting value, collect cooling cycle data and ambient temperature data of the plastic cap to be molded, determine an adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and the ambient temperature data, and obtain a final mold temperature setting value.

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

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

[0011] Determine the basic mold temperature setting value of the molding die according to the raw material type;

[0012] Collect the wall thickness data of the plastic cover to be molded, and perform feature extraction on the wall thickness data to obtain the wall thickness feature value;

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

[0014] If so, determine the compensation coefficient of the basic mold temperature setting value according to the injection molding cycle and the wall thickness feature value, and obtain the initial mold temperature setting value.

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

[0016] The raw material type includes polypropylene material, polyethylene material and polystyrene material;

[0017] When the raw material type is the polypropylene material, determine that the basic mold temperature setting value of the molding die is the first temperature value;

[0018] When the raw material type is the polyethylene material, determine that the basic mold temperature setting value of the molding die is the second temperature value;

[0019] When the raw material type is the polystyrene material, determine that the basic mold temperature setting value of the molding die is the third temperature value.

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

[0021] Obtain the wall thickness standard value corresponding to the wall thickness feature value;

[0022] Calculate the difference between the wall thickness feature value and the wall thickness standard value, and record it as the wall thickness difference;

[0023] Compare the wall thickness difference with the wall thickness difference threshold, and judge whether to compensate the basic mold temperature setting value according to 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 no compensation is made to the basic mold temperature setting value, and the basic mold temperature setting value is used as the initial mold temperature setting value.

[0026] Further, 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:

[0027] Form a compensation characteristic group with the injection molding cycle and the wall thickness characteristic value;

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

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

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

[0031] Analyze the historical manufacturing data to obtain historical normal manufacturing records and historical abnormal manufacturing records related to the temperature of the molding die;

[0032] Classify the historical abnormal manufacturing records to obtain the occurrence times of each type of historical abnormal manufacturing record and calculate the historical manufacturing abnormality value;

[0033] Compare the historical manufacturing abnormality value with a historical manufacturing abnormality threshold, and determine whether to adjust the initial mold temperature setting value according to the comparison result.

[0034] Further, when the judgment module compares the historical manufacturing abnormality value with a historical manufacturing abnormality threshold and determines whether to adjust the initial mold temperature setting value according to the comparison result, it includes:

[0035] When the historical manufacturing abnormality value is greater than or equal to the historical manufacturing abnormality threshold, it is determined 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 no adjustment is made to the initial mold temperature setting value.

[0037] Further, 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] Extract features from the cooling cycle data and the ambient temperature data respectively to obtain a cooling cycle characteristic value and an ambient temperature characteristic value;

[0039] Combine the cooling cycle eigenvalue and the ambient temperature eigenvalue to form a feature combination;

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

[0041] When there is a historical feature combination in the historical data that is the same as the feature combination, use the historical adjustment coefficient corresponding to the historical feature combination as the adjustment coefficient, and use the product value of the historical adjustment coefficient and the initial mold temperature setting value as the final mold temperature setting value;

[0042] When there is no historical feature combination in the historical data that is the same as the feature combination, determine the adjustment coefficient for the initial mold temperature setting value according to the cooling cycle eigenvalue and the ambient temperature eigenvalue.

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

[0044] Perform weighted calculation on the cooling cycle eigenvalue and the ambient temperature eigenvalue to obtain a comprehensive temperature influence factor;

[0045] Compare the comprehensive temperature influence factor with a first comprehensive temperature influence factor and a second comprehensive temperature influence factor, and determine the adjustment coefficient for the initial mold temperature setting value according to the comparison result; wherein, the first comprehensive temperature influence factor is less than the second comprehensive temperature influence factor;

[0046] Set an adjustment coefficient range, wherein the adjustment coefficient range 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, determine that the adjustment coefficient is 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, determine that the adjustment coefficient is the second adjustment coefficient;

[0049] When the comprehensive temperature influence factor is greater than the second comprehensive temperature influence factor, determine that the adjustment coefficient is the third adjustment coefficient;

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

[0051] Compared with the prior art, the beneficial effects of the present invention are as follows: The beneficial effect of the forming control system for plastic caps provided by the present invention is that through the coordinated action of each module, precise control of the mold temperature during the plastic cap forming process is achieved. First, the initial parameter determination module determines a basic mold temperature setting value based on the raw material data, and this step ensures that different raw material types can obtain suitable initial forming temperatures. Then, the judgment module further makes a judgment on the fine adjustment of the initial mold temperature setting value through the analysis of historical manufacturing data, which helps to avoid temperature problems that 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 forming process is both precise and flexible.

[0052] The present invention not only significantly improves the forming quality of plastic caps, reduces the defective rate caused by improper temperature, but also optimizes the production efficiency, shortens the forming cycle, and reduces energy consumption. In addition, the highly automated feature of this system reduces manual intervention, lowers the operation difficulty, and makes the entire production process smoother and more efficient.

[0053] On the other hand, the present invention also proposes a forming control method for plastic caps, including the following steps:

[0054] S100: Determine the plastic cap to be formed, collect the raw material data of the plastic cap to be formed, and determine the initial mold temperature setting value of the forming mold according to the raw material data;

[0055] S200: Collect the historical manufacturing data of the plastic cap to be formed, analyze the historical manufacturing data, and judge 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, collect the cooling cycle data and ambient temperature data of the plastic cap to be formed, determine the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and ambient temperature data, and obtain the final mold temperature setting value.

[0057] It can be understood that the above-mentioned forming control method and system for plastic caps have the same beneficial effects, which will not be elaborated here. Description of the Drawings

[0058] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0059] Figure 1 The block diagram of the forming control system for the plastic cover provided by the embodiment of the present invention;

[0060] Figure 2 The flowchart of the forming control method for the plastic cover provided by the embodiment of the present invention. Detailed implementation manners

[0061] Hereinafter, the exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the 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 so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0062] Refer to Figure 1 As shown, in some embodiments of the present application, the present embodiment provides a forming control system for a plastic cover, including:

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

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

[0065] A processing module, configured to, when the judgment module determines to adjust the initial mold temperature setting value, collect the cooling cycle data and the ambient temperature data of the plastic cover to be formed, determine the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and the ambient temperature data, and obtain the final mold temperature setting value.

[0066] It can be understood that the beneficial effect of the forming control system for plastic caps provided in this embodiment lies in the precise control of the mold temperature during the plastic cap forming process through the coordinated action of each module. First, the initial parameter determination module determines a basic mold temperature setting value based on the raw material data, and this step ensures that different raw material types can obtain appropriate initial forming temperatures. Then, the judgment module further makes a judgment on the fine adjustment of the initial mold temperature setting value through the analysis of historical manufacturing data, which helps to avoid temperature problems that 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 forming process is both precise and flexible.

[0067] It can be understood that this embodiment not only significantly improves the forming quality of plastic caps, reduces the defective rate caused by improper temperature, but also optimizes the production efficiency, shortens the forming cycle, and reduces energy consumption. In addition, the highly automated feature of this system reduces manual intervention, lowers the operation difficulty, and makes 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 forming mold according to the raw material data, it includes:

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

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

[0071] Collect the wall thickness data of the plastic cap to be formed, and perform feature extraction on the wall thickness data to obtain the wall thickness feature value;

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

[0073] If so, determine the compensation coefficient of the basic mold temperature setting value according to the injection cycle and the wall thickness feature value, and obtain the initial mold temperature setting value.

[0074] In this embodiment, the wall thickness feature value refers to the statistical features of the wall thickness data, such as the average value, maximum value, minimum value or standard deviation, and these features can reflect the wall thickness distribution of the plastic cap to be formed.

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

[0076] It can be understood that, as an eigenvalue, the average wall thickness can 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 thick and requires a longer cooling time and a higher mold temperature to ensure the molding quality; conversely, when the average wall thickness is small, the mold temperature can be appropriately reduced to shorten the molding cycle. By compensating the basic mold temperature setting value according to the average wall thickness, the accuracy and adaptability of 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, multiple factors such as the raw material type, wall thickness eigenvalue, and injection molding cycle need to be comprehensively considered to ensure that the finally obtained mold temperature 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 type includes polypropylene material, polyethylene material, and polystyrene material;

[0079] When the raw material type is the polypropylene material, determine that the basic mold temperature setting value of the molding mold is the first temperature value;

[0080] When the raw material type is the polyethylene material, determine that the basic mold temperature setting value of the molding mold is the second temperature value;

[0081] When the raw material type is the polystyrene material, determine that the basic mold temperature setting value of the molding mold is the third temperature value.

[0082] It is understandable that different plastic raw materials have different thermal properties and molding characteristics. Therefore, when selecting the basic mold temperature setting value, it is necessary to accurately match the raw material type. For example, due to its relatively high melting point and good thermal stability, polypropylene materials usually require a relatively high mold temperature to ensure molding quality; while polyethylene materials, due to their relatively low melting point and good fluidity, can appropriately reduce the mold temperature; polystyrene materials, due to their relatively high thermal sensitivity and easy shrinkage, require a moderate mold temperature to avoid molding defects. By setting different basic mold temperature setting values for different raw material types, the stability of the molding process and the molding quality of the plastic lid can be further improved. In this embodiment, the first temperature value, the second temperature value, and the third temperature value are the optimal values obtained based on a large amount of experimental data and production experience, which can ensure the best mold temperature control for different raw material types during the molding process. This method of selecting the basic mold temperature setting value based on the raw material type not only improves the accuracy and flexibility of the molding process, but also helps to 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] Obtain the wall thickness standard value corresponding to the wall thickness characteristic value;

[0085] Calculate the difference between the wall thickness characteristic value and the wall thickness standard value, and record it as the wall thickness difference;

[0086] Compare the wall thickness difference with the wall thickness difference threshold, and determine whether to compensate the basic mold temperature setting value according to 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 not to compensate the basic mold temperature setting value, 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 a preset range, it indicates that the wall thickness distribution of the plastic lid 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 non-uniformity in the wall thickness distribution of the plastic lid, which may be caused by differences in the fluidity of the raw material, 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 to 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] Form a compensation characteristic group with the injection molding cycle and the wall thickness characteristic value;

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

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

[0094] In this embodiment, the compensation characteristic group = (injection molding cycle, wall thickness characteristic value) = (c, d); when the value of (c, d) is (10, 0.3), the preferred value of the corresponding compensation coefficient is 1.2; when the value of (c, d) is (15, 0.5), the preferred value of the corresponding compensation coefficient is 1.3; and so on. It can be understood that different combinations of the injection molding cycle and the wall thickness characteristic value reflect the cooling time of the plastic melt in the mold and the wall thickness distribution, and these factors jointly affect the compensation requirements of the mold temperature. Through the preset compensation coefficient mapping table, the appropriate compensation coefficient can be quickly determined for different combinations, so as to achieve precise adjustment of the mold temperature. This method of temperature compensation based on the compensation characteristic 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, when the judgment module analyzes the historical manufacturing data and judges whether to adjust the initial mold temperature setting value based on the analysis result, it includes:

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

[0097] Classify the historical abnormal manufacturing records to obtain the occurrence times of each type of historical abnormal manufacturing record and calculate the historical manufacturing abnormality value;

[0098] Compare the historical manufacturing abnormality value with the historical manufacturing abnormality threshold, and judge whether to adjust the initial mold temperature setting value according to the comparison result.

[0099] In this embodiment, the historical normal manufacturing record refers to the relevant data records of the plastic covers that have been successfully manufactured and meet the quality standards under the same or similar molding conditions in the past period of time. These data record the key molding parameters such as the mold temperature, injection pressure, injection speed, etc. and the inspection results of the final products.

[0100] In this embodiment, the historical abnormal manufacturing records related to the temperature of the molding die refer to the relevant data records in the past period, which are caused by the too high or too low die temperature resulting in unqualified product quality.

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

[0102] In this embodiment, the calculation process of the historical manufacturing abnormal value is to multiply the occurrence times of each type of historical abnormal manufacturing record by the corresponding weight coefficient, and sum up the product values to obtain the historical manufacturing abnormal value. The setting of the weight coefficient can be determined according to the severity of the impact of different types of abnormal manufacturing records on product quality. For example, the weight coefficients corresponding to serious defects such as plastic cover deformation and cracking can be set higher, while the weight coefficients corresponding to minor defects such as surface defects can be set lower. Through such a setting, the problems in the die temperature control during the historical manufacturing process can be more accurately reflected, thus providing a strong basis for subsequent temperature adjustment.

[0103] Specifically, when the judgment module compares the historical manufacturing abnormal value with the historical manufacturing abnormal threshold and determines whether to adjust the initial die temperature setting value according to the comparison result, it includes:

[0104] When the historical manufacturing abnormal value is greater than or equal to the historical manufacturing abnormal threshold, it is determined to adjust the initial die temperature setting value;

[0105] When the historical manufacturing abnormal value is less than the historical manufacturing abnormal threshold, it is determined not to adjust the initial die temperature setting value.

[0106] It can be understood that when the historical manufacturing abnormal value exceeds the preset threshold, it means that there are relatively large problems in the control of the die temperature during the past manufacturing process, which may lead to unstable product quality or an increase in the defective rate. At this time, it is necessary to adjust the initial die temperature setting value to improve the control effect of the die temperature and improve the molding quality and production efficiency of the product. On the contrary, when the historical manufacturing abnormal value is below the threshold, it indicates that the control of the die temperature is relatively stable, and at this time, there is no need to adjust the initial die 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 die 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 die temperature setting value according to the cooling cycle data and the ambient temperature data and obtains the final die temperature setting value, it includes:

[0108] Feature extraction is respectively performed on the cooling cycle data and the ambient temperature data to obtain a cooling cycle feature value and an ambient temperature feature value;

[0109] The cooling cycle feature value and the ambient temperature feature value are combined to form a feature combination;

[0110] The feature combination is compared with historical data, and an adjustment coefficient for the initial mold temperature setting value is determined according to the comparison result;

[0111] When there is a historical feature combination in the historical data that is the same as the feature combination, the historical adjustment coefficient corresponding to the historical feature combination is used as the adjustment coefficient, and the product value 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 in the historical data that is the same as the feature combination, the adjustment coefficient for 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 feature value refers to the statistical feature of the cooling cycle data, such as the average value, the maximum value or the standard deviation, and these features can reflect the cooling time distribution of the plastic melt in the mold. The ambient temperature feature value refers to the statistical feature of the ambient temperature data, such as the average value or the fluctuation range, and these features can reflect the ambient temperature change of the production site.

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

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

[0116] It can be understood that the average cooling cycle, as an eigenvalue, can accurately reflect the average cooling time of the plastic melt in the mold, while the average ambient temperature can reflect the average temperature condition at the production site. The combination of these two eigenvalues can comprehensively reflect the degree to which the mold temperature is affected by the cooling cycle and the ambient temperature, thus providing a strong basis for the final adjustment of the mold temperature. When there is a historical feature combination in the historical data that is the same as the current feature combination, it indicates that in past production, the mold temperature has been adjusted for the same cooling cycle and ambient temperature conditions, and good molding effects have been achieved. At this time, the historical adjustment coefficient corresponding to the historical feature combination can be directly used as the current adjustment coefficient to quickly determine the final mold temperature setting value and improve production efficiency. When there is no historical feature combination in the historical data that is the same as the current feature combination, it is necessary to determine a suitable adjustment coefficient based on the current cooling cycle eigenvalue and ambient temperature eigenvalue, taking into account the cooling requirements of the plastic melt and the ambient temperature change at the production site to ensure that the mold temperature can meet the molding requirements. This comprehensive judgment method based on real-time data and historical data not only improves the accuracy and flexibility of mold temperature control but also helps to optimize production efficiency and product quality.

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

[0118] Perform a weighted calculation on the cooling cycle eigenvalue and the ambient temperature eigenvalue to obtain a comprehensive temperature influence factor;

[0119] Compare the comprehensive temperature influence factor with the first comprehensive temperature influence factor and the second comprehensive temperature influence factor, and determine the adjustment coefficient of the initial mold temperature setting value according to the comparison result; wherein, the first comprehensive temperature influence factor is less than the second comprehensive temperature influence factor;

[0120] Set an adjustment coefficient interval, where 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, determine that the adjustment coefficient is 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, determine that the adjustment coefficient is the second adjustment coefficient;

[0123] When the comprehensive temperature influence factor is greater than the second comprehensive temperature influence factor, determine that the adjustment coefficient is the third adjustment coefficient;

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

[0125] In this embodiment, the first adjustment coefficient < the second adjustment coefficient < the third adjustment coefficient.

[0126] It can be understood that the magnitude 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 indicates that the cooling cycle is short and the ambient temperature is low. At this time, the heat dissipation effect of the mold is good. Therefore, it is necessary to appropriately reduce the adjustment coefficient to avoid the plastic melt solidifying too quickly due to too low mold temperature, which affects the molding quality. When the comprehensive temperature influence factor is large, it indicates that the cooling cycle is long and the ambient temperature is high. At this time, the heat dissipation effect of the mold is poor. Therefore, 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, so as to obtain 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] Refer to Figure 2 As shown, in some embodiments of the present application, this embodiment provides a molding control method for a plastic cover, including the following steps:

[0128] S100: Determine the plastic cover to be molded, collect the raw material data of the plastic cover to be molded, and determine the initial mold temperature setting value of the molding mold according to the raw material data;

[0129] S200: Collect the 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;

[0130] S300: When the judgment module determines to adjust the initial mold temperature setting value, collect the cooling cycle data and ambient temperature data of the plastic cover to be molded, determine the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and ambient temperature data, and obtain the final mold temperature setting value.

[0131] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

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

[0133] These computer program instructions can also be stored in a computer-readable memory capable of guiding a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or the functions specified in multiple blocks.

[0134] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or the functions specified in multiple blocks.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.

Claims

1. A molding control system for a plastic cover, characterized in that: include: An initial parameter determination module is 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 according to the raw material data; A judgment module is configured to collect historical manufacturing data of the plastic cover to be molded, analyze the historical manufacturing data, and judge whether to adjust the initial mold temperature setting value based on the analysis result; The processing module is configured to collect the cooling cycle data and the ambient temperature data of the plastic cover to be formed when the judgment module determines that the initial mold temperature setting value is to be adjusted, determine the adjustment coefficient of the initial mold temperature setting value according to the cooling cycle data and the ambient temperature data, and obtain the final mold temperature setting value.

2. The molding control system for plastic cover 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: Parsing the raw material data to obtain the raw material type and injection molding cycle; Determining a basic mold temperature setting value of the molding mold according to the type of the raw material; Collecting the 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 cover according to claim 2, characterized in that: 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: The raw material types include polypropylene material, polyethylene material and polystyrene material; When the raw material type is the polypropylene material, determining that the basic mold temperature setting value of the molding mold is a first temperature value; When the raw material type is the polyethylene material, determining that the basic mold temperature setting value of the molding mold is 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 cover 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; Calculate the difference between the wall thickness characteristic value and the wall thickness standard value, and record it as the wall thickness difference; Comparing the wall thickness difference with the wall thickness difference threshold, and judging whether the basic mold temperature setting value is compensated according to 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 cover 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: The injection molding cycle and the wall thickness characteristic values ​​are combined 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 cover according to claim 5, characterized in that: 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 molding die; 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; 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.

7. The molding control system for plastic cover according to claim 6, characterized in that: 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, it is determined that the initial mold temperature setting value is not adjusted.

8. The molding control system for plastic caps according to claim 7, characterized in that: 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 respectively to obtain a cooling cycle feature value and an ambient temperature feature value; 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 there is a historical feature combination identical to the feature combination in the historical data, 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.

9. The molding control system for plastic caps according to claim 8, 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 influence factor; Comparing the comprehensive temperature influence factor with the first comprehensive temperature influence factor and the second comprehensive temperature influence factor, and determining the adjustment coefficient of the initial mold temperature setting value according to 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.

10. A molding control method for a plastic cover, applied to a molding control system for a plastic cover as claimed in any one of claims 1 to 9, characterized in that: include: Determine the plastic cover to be formed, collect the raw material data of the plastic cover to be formed, and determine the initial mold temperature setting value of the forming mold according to the raw material data; Collecting historical manufacturing data of the plastic cover to be formed, 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 to adjust the initial mold temperature setting value, the cooling cycle data and the ambient temperature data of the plastic cover to be formed are collected, the adjustment coefficient of the initial mold temperature setting value is determined according to the cooling cycle data and the ambient temperature data, and the final mold temperature setting value is obtained.

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