A filter plate for sanitary products and a thermoforming process control method

Abstract

The present invention provides a sanitary product filter plate and a thermoforming process control method, which belong to the field of separation technology, and specifically include: based on the changes in heat treatment abnormality data in different processing time intervals within the maximum operating time range at the available processing temperature, when it is determined that there is no available processing temperature with a matching degree that meets the requirements, a processing plan is constructed based on different available processing temperatures, and the processing plans are freely combined to generate a processing plan. The control processing plan of the thermoforming process is generated based on the average processing temperature of different processing plans under a preset control mode, the temperature switching data between different processing plans, and the number of processing plans, thereby improving the reliability of the thermoforming control processing of the sanitary product filter plate.

Description

Technical Field

[0001] The present invention belongs to the field of separation technology, and in particular relates to a filter plate for sanitary products and a thermoforming process control method. Background Art

[0002] Pharmaceutical filter plates are primarily used in industries with extremely high hygiene requirements, such as food, beverage, and pharmaceuticals. Thermoforming is a key technology in manufacturing these filter plates. This process involves softening thermoplastic sheets by heating and then molding them into a filter plate with a specific shape and precision to meet the precise filtration and hygiene standards of the filtration system.

[0003] In order to achieve the control and processing of the thermoforming process of sanitary product filter plates, the invention patent application CN201611216314.0 "A filter plate and its production process" has a product with good performance after mixing, heating, forming, curing, processing, and deburring. The filter plate has high production efficiency during the production process, reducing the manufacturing cost of the filter plate. However, it has the following technical defects:

[0004] During the control process of the thermoforming process, existing technical solutions often require data such as material type and thickness to adjust data such as heating temperature, heating time, air outlet position and wind speed. Due to the large number of data dimensions, existing technical solutions use manual methods to make adjustments, making it difficult to meet the requirements for processing efficiency and accuracy, thereby making it difficult to effectively control the quality of the filter plate.

[0005] The present application provides a filter plate for sanitary products and a thermoforming process control method. Summary of the Invention

[0006] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0007] Specifically, in a first aspect, the present application provides a thermoforming process control method, which specifically includes:

[0008] S1 determines, based on the material type of the sanitary product filter plate, a control processing mode for circulating hot air of a heating device at different processing temperatures for the sanitary product filter plate, and determines an available processing temperature among the processing temperatures based on heat treatment abnormality data of the heating device under the control processing mode;

[0009] S2: obtaining abnormal data of the heating device within different single operation time intervals at the available processing temperature, and determining the maximum operation time of the heating device based on the abnormal data;

[0010] S3: Based on the variation of the abnormal heat treatment data within different processing time intervals within the maximum operating time range at the available processing temperature, when it is determined that there is no available processing temperature that meets the requirements, construct a processing plan based on different available processing temperatures, and freely combine the processing plans to generate a processing plan;

[0011] S4 generates a control processing scheme for the thermoforming process based on the average processing temperature of different processing schemes under the preset control mode, the temperature switching data between different processing schemes, and the number of processing schemes.

[0012] The beneficial effects of the present invention are:

[0013] Based on the changes in heat treatment abnormality data in different processing time intervals within the maximum operating time range at the available processing temperature, it is determined whether there is an available processing temperature with a matching degree that meets the requirements. This takes into account both the maximum operating time of the available processing temperature and the differences in the changes in heat treatment abnormality data in different processing time intervals at the available processing temperature, which leads to differences in the severity of changes in heat treatment abnormalities during the temperature change process. This realizes the determination of the matching degree of the available processing temperature from multiple angles, and also lays the foundation for generating differentiated control and processing solutions for the hot forming process based on the differences in the matching degree.

[0014] The control processing scheme of the thermoforming process is generated based on the average processing temperature of different processing schemes under the preset control mode, the temperature switching data between different processing schemes and the number of processing schemes, thereby avoiding the influence of the heating device being unable to be effectively cooled due to a single available processing temperature on the forming quality. At the same time, a processing processing scheme is generated by integrating multiple processing schemes, and the determination of a control processing scheme with a higher average processing temperature, a lower temperature switching amplitude and a smaller number of processing schemes is achieved, thereby ensuring the reliability of the thermoforming process.

[0015] A further technical solution is that the material type includes the material type and the plate thickness.

[0016] A further technical solution is that the material types include polypropylene, polycarbonate and polysulfone (PSU).

[0017] A further technical solution is that the control processing mode of the circulating hot air of the heating device is determined according to the material type of the sanitary product filter plate, the rotation angle range and the rotation speed of the circulating hot air of the heating device at the processing temperature.

[0018] A further technical solution is that the heat treatment abnormality data of the heating device includes the number of abnormalities of the sanitary product filter plate under different abnormality types in the control processing mode.

[0019] A further technical solution is that the abnormality types include local heat treatment exceeding the limit, abnormal heat treatment uniformity and heating temperature not meeting the standard.

[0020] A further technical solution is that the method for determining the usable processing temperature in the processing temperature is:

[0021] Determining abnormal data of the sanitary product filter plate under different abnormality types under the control processing mode using the abnormal heat treatment data of the heating device under the control processing mode;

[0022] Based on the abnormal data under different abnormal types, the proportion of sanitary product filter plates with abnormal types in different processing times is determined;

[0023] Whether the processing temperature corresponding to the control processing mode is an applicable processing temperature is determined according to an average value of the proportion of the number of sanitary product filter plates with abnormal types in different processing times.

[0024] A further technical solution is that when the average value of the proportion of abnormal types of sanitary product filter plates in different processing times is less than a preset abnormal number proportion threshold, the processing temperature corresponding to the control processing mode is determined to be an available processing temperature.

[0025] A further technical solution is to generate a control solution for the thermoforming process, specifically including:

[0026] Determining an average value of a temperature reduction amplitude when switching between the processing schemes of the processing schemes based on the temperature switching data between the processing schemes of the processing schemes;

[0027] Determining, based on the number of processing solutions in the processing solution, a proportion of the operating time within the preset temperature range and a proportion of the operating time within the second preset temperature range;

[0028] Based on the average processing temperature of the processing scheme under the preset control mode, the average value of the temperature reduction amplitude during switching processing, the proportion of operating time within the preset temperature range, and the proportion of operating time within the second preset temperature range, the scheme adaptation coefficient of the processing scheme is determined. Based on the ratio of the scheme adaptation coefficient to the number of processing schemes, the availability coefficient of the processing scheme is determined, and based on the availability coefficient, a control processing scheme for the thermoforming process is generated.

[0029] A further technical solution is that the scheme adaptation coefficient of the processing scheme is determined based on the ratio of the product of the average processing temperature of the processing scheme under the preset control mode, the proportion of the operating time in the preset temperature range, and the proportion of the operating time in the second preset temperature range, and the average value of the temperature reduction amplitude during the switching process.

[0030] A further technical solution is that the control processing scheme of the thermoforming process is a processing processing scheme with the largest available coefficient.

[0031] A further technical solution is that the preset temperature interval is a temperature interval in which the heating temperature is greater than a preset heating temperature threshold, and the second preset temperature interval is a temperature interval in which the heating temperature is less than a second preset heating temperature threshold, wherein the preset heating temperature threshold is determined based on the available heating temperature whose corresponding heating processing time is less than the preset heating processing time, and the second preset heating temperature threshold is determined based on the product of the rated heating temperature of the heating device and a preset proportional factor.

[0032] In a second aspect, the present application provides a filter plate for sanitary products, which adopts the above-mentioned thermoforming process control method, specifically comprising:

[0033] It is made of thermoplastic plastic sheets using a thermoforming process and meets the hygiene standards of the health industry including food and medicine.

[0034] Other features and advantages will be described in the following description. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and drawings.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings;

[0037] Figure 1 It is a flow chart of a thermoforming process control method;

[0038] Figure 2 is a flow chart of a method for determining an available processing temperature among processing temperatures;

[0039] Figure 3 is a flow chart of a method for determining a maximum operating time of a heating device;

[0040] Figure 4 It is a flow chart to determine if the matching degree of available processing temperature does not meet the requirements;

[0041] Figure 5 is a flow chart of a method for generating a control processing plan for a thermoforming process. DETAILED DESCRIPTION

[0042] To help those skilled in the art better understand the technical solutions in this specification, the following will provide a clear and complete description of the technical solutions in the embodiments of this specification, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this specification without creative work should fall within the scope of protection of this specification.

[0043] In the present application, by optimizing the thermoforming process and utilizing a hierarchical temperature reduction control process, the single use of a fixed, excessively high temperature for the heating device is avoided.

[0044] When the average value of the proportion of abnormal sanitary product filter plates in different processing times is less than the preset abnormal number proportion threshold, the processing temperature corresponding to the control processing mode is determined to be the available processing temperature.

[0045] The alarm frequency ratio is determined by the ratio of the number of over-temperature alarms to the number of historical heating times within the single operating time interval. The maximum operating time of the heating device at the available processing temperature is determined based on the maximum value of the endpoint of the single operating time interval within the preset alarm frequency ratio interval.

[0046] According to the change in the proportion of the number of sanitary product filter plates with abnormal types in different adjacent processing time intervals, the change in the number proportion in different processing time intervals is determined. When the average value of the change in the number proportion in different processing time intervals is greater than the preset change threshold or the longest processing time of the available processing temperature is less than the preset time threshold, it is determined that the matching degree of the available processing temperature does not meet the requirements.

[0047] Based on the ratio of the average processing temperature of the processing scheme under the preset control mode to the average value of the temperature reduction amplitude during the switching process, the scheme adaptation coefficient of the processing scheme is determined. Based on the ratio of the scheme adaptation coefficient to the number of processing schemes, the availability coefficient of the processing scheme is determined, and the processing scheme with the largest availability coefficient is used as the control processing scheme for the thermoforming process.

[0048] Example 1

[0049] like Figure 1 As shown, the present application provides a thermoforming process control method, which specifically includes:

[0050] S1 determines, based on the material type of the sanitary product filter plate, a control processing mode for circulating hot air of a heating device at different processing temperatures for the sanitary product filter plate, and determines an available processing temperature among the processing temperatures based on heat treatment abnormality data of the heating device under the control processing mode;

[0051] Furthermore, the material type includes material type and plate thickness.

[0052] Specifically, the material types include polypropylene, polycarbonate, and polysulfone (PSU).

[0053] It should be noted that the control processing mode of the circulating hot air of the heating device is determined according to the material type of the sanitary product filter plate, the rotation angle range and the rotation speed of the circulating hot air of the heating device at the processing temperature.

[0054] It can be understood that the heat treatment abnormality data of the heating device includes the number of abnormalities of the sanitary product filter plate under different abnormality types in the control processing mode.

[0055] Furthermore, the abnormality types include local heat treatment exceeding the limit, abnormal heat treatment uniformity and heating temperature not meeting the standard.

[0056] Specifically, such as Figure 2 As shown, the method for determining the available processing temperature among the processing temperatures is:

[0057] Determining abnormal data of the sanitary product filter plate under different abnormality types under the control processing mode using the abnormal heat treatment data of the heating device under the control processing mode;

[0058] Based on the abnormal data under different abnormal types, the proportion of sanitary product filter plates with abnormal types in different processing times is determined;

[0059] Whether the processing temperature corresponding to the control processing mode is an applicable processing temperature is determined according to an average value of the proportion of the number of sanitary product filter plates with abnormal types in different processing times.

[0060] Furthermore, when the average value of the percentage of abnormal sanitary product filter plates in different processing times is less than a preset abnormal percentage threshold, the processing temperature corresponding to the control processing mode is determined to be the available processing temperature.

[0061] In another possible embodiment, the method for determining the available processing temperature among the processing temperatures is:

[0062] Determining abnormal data of the sanitary product filter plate under different abnormality types under the control processing mode using the abnormal heat treatment data of the heating device under the control processing mode;

[0063] Based on the abnormal data under different abnormal types, the proportion of sanitary product filter plates with abnormal types in different processing times is determined;

[0064] Whether the processing temperature corresponding to the control processing mode is an available processing temperature is determined according to the proportion of the number of sanitary product filter plates of different abnormal types in different processing times.

[0065] Furthermore, when there is an abnormal type in which the average value of the proportion of the sanitary product filter plates in different processing times does not meet the requirement, it is determined that the processing temperature corresponding to the control processing mode does not belong to the available processing temperature.

[0066] In another possible embodiment, the method for determining the available processing temperature among the processing temperatures is:

[0067] Determining abnormal data of the sanitary product filter plate under different abnormality types under the control processing mode using the abnormal heat treatment data of the heating device under the control processing mode;

[0068] Determine the abnormality probability assessment value of different abnormality types according to the proportion of the number of sanitary product filter plates of different abnormality types in different processing times;

[0069] A comprehensive abnormality probability evaluation amount is determined using abnormality probability evaluation values of different abnormality types, and the comprehensive abnormality probability evaluation amount is used to determine whether the processing temperature corresponding to the control processing mode is an available processing temperature.

[0070] In another possible embodiment, before determining the abnormality probability evaluation values of different abnormality types, it is necessary to further use the abnormal data to determine whether there is an abnormality type whose abnormality number does not meet the requirements, whether the sum of the abnormality numbers under different abnormality types is within a preset abnormality number range, and whether the number of sanitary product filter plates with abnormal types does not meet the requirements and the processing times are greater than a preset processing times threshold. Specifically, the following is included:

[0071] When there is an abnormality type whose abnormality number does not meet the requirement, or the sum of the abnormality numbers under different abnormality types under the control processing mode is within the preset abnormality number range, or when the proportion of the number of sanitary product filter plates with abnormal types does not meet the required processing times and is greater than the preset processing times threshold, it can be directly determined that the processing temperature corresponding to the control processing mode does not belong to the available processing temperature;

[0072] The abnormality probability evaluation value is determined only when and only when there is no abnormality type whose abnormality number does not meet the requirement, and the sum of the abnormality numbers under different abnormality types in the control processing mode is not within the preset abnormality number range, and when there are sanitary product filter plates with abnormal types whose proportion does not meet the required processing times and is not greater than the preset processing times threshold;

[0073] In another possible embodiment, before determining the comprehensive abnormality probability assessment amount, it is also necessary to determine whether there is an abnormality type whose abnormality probability assessment value does not meet the requirements. When there is an abnormality type whose abnormality probability assessment value does not meet the requirements, it is determined that the processing temperature corresponding to the control processing mode does not belong to the available processing temperature. If and only if there is no abnormality type whose abnormality probability assessment value does not meet the requirements, the comprehensive abnormality probability assessment amount is determined.

[0074] Furthermore, when the comprehensive abnormality probability assessment value is greater than a preset abnormality probability assessment value threshold, it is determined that the processing temperature corresponding to the control processing mode is not an available processing temperature.

[0075] S2: obtaining abnormal data of the heating device within different single operation time intervals at the available processing temperature, and determining the maximum operation time of the heating device based on the abnormal data;

[0076] Furthermore, the abnormal data includes temperature control abnormality, over-temperature alarm, heating element failure and line protection device failure.

[0077] Specifically, such as Figure 3 As shown, the method for determining the maximum operating time of the heating device is:

[0078] Determining the number of over-temperature alarms within different single operation time intervals based on abnormal data of the heating device within different single operation time intervals at the available processing temperature;

[0079] Determine the alarm frequency ratio based on the ratio of the over-temperature alarm frequency to the historical heating frequency within the single operation duration interval;

[0080] The maximum operating time of the heating device at the available processing temperature is determined based on the proportion of the number of alarms within different single operating time intervals.

[0081] Furthermore, the longest operating time of the heating device at the available processing temperature is determined according to the maximum value of the endpoint of a single operating time interval in which the alarm number ratio is within a preset alarm number ratio interval.

[0082] In another possible embodiment, the method for determining the maximum operating time of the heating device is:

[0083] Determine a single operation duration interval within a preset heating number interval based on the historical heating times of the heating device within different single operation duration intervals at the available processing temperature, and use the historical heating times as the screening operation duration interval;

[0084] Determine the number of over-temperature alarms within different screening operation time intervals based on abnormal data of the heating device within different screening operation time intervals;

[0085] The maximum value of the endpoints of the screening operation time interval in which the number of over-temperature alarms is within the preset over-temperature alarm number interval is used as the maximum operation time of the heating device at the available processing temperature.

[0086] In another possible embodiment, the method for determining the maximum operating time of the heating device is:

[0087] Based on the historical heating times of the heating device within different single operation time intervals at the available processing temperature, the single operation time intervals within the preset heating time interval are used as screening operation time intervals, and based on the abnormal data of the heating device in different screening operation time intervals, the number of over-temperature alarms within the different screening operation time intervals is determined;

[0088] Obtain the proportion of the number of over-temperature alarms within the screening run time interval to the number of historical heating times, and determine the over-temperature anomaly coefficient of the screening run time interval in combination with the number of over-temperature alarms within the screening run time interval, and take the run time interval whose endpoint is smaller than the screening run time interval as the previous run time interval, and use different over-temperature anomaly coefficients of the previous run time intervals;

[0089] The over-temperature anomaly coefficients of different screening operation time intervals and the over-temperature anomaly coefficients of the previous operation time intervals are used to determine the interval anomaly values of different screening operation time intervals, and the maximum value of the endpoints of the screening operation time interval whose interval anomaly values are within the preset interval anomaly value range is taken as the longest operation time of the heating device at the available processing temperature.

[0090] It should be noted that before determining the over-temperature anomaly coefficient of the screening operation time interval, the following contents are also included:

[0091] When the historical heating times of the heating device within the single operation time interval is not within the preset heating times interval, or when the over-temperature alarm times within the screening operation time interval is not within the preset over-temperature alarm times interval, it is determined that the endpoint corresponding to the screening operation time interval does not belong to the maximum operation time of the heating device;

[0092] The over-temperature anomaly coefficient of the screening operation time interval is determined if and only if the historical heating times of the heating device within a single operation time interval are within the preset heating times interval, and if the over-temperature alarm times within the screening operation time interval are within the preset over-temperature alarm times interval.

[0093] It should be noted that before determining the interval outliers for different screening run time intervals, the following contents are also included:

[0094] When the number of previous operation time intervals in which the over-temperature anomaly coefficient of the screening operation time interval does not meet the requirement is greater than a preset time interval number threshold, it is determined that the endpoint corresponding to the screening operation time interval does not belong to the maximum operation time of the heating device;

[0095] If and only if the number of previous operating time intervals in which the over-temperature anomaly coefficient of the screened operating time interval does not meet the requirement is not greater than the preset time interval number threshold, the interval anomaly value of the screened operating time interval is determined.

[0096] S3: Based on the variation of the abnormal heat treatment data within different processing time intervals within the maximum operating time range at the available processing temperature, when it is determined that there is no available processing temperature that meets the requirements, construct a processing plan based on different available processing temperatures, and freely combine the processing plans to generate a processing plan;

[0097] Specifically, such as Figure 4 As shown, determining that the matching degree of the available processing temperature does not meet the requirements specifically includes:

[0098] Determine the proportion of sanitary product filter plates with abnormal types in different processing time intervals based on the change of heat treatment abnormality data in different processing time intervals within the maximum operating time range at the available processing temperature;

[0099] Determining the quantity ratio change in different processing time intervals according to the quantity ratio change of the abnormal type of sanitary product filter plates in different adjacent processing time intervals;

[0100] Based on the change in the number of different processing time intervals, it is determined whether the matching degree of the available processing temperature meets the requirements.

[0101] Furthermore, when the average value of the quantity proportion change in different processing time intervals is greater than the preset change threshold or the longest processing time of the available processing temperature is less than the preset time threshold, it is determined that the matching degree of the available processing temperature does not meet the requirements.

[0102] It can be understood that when there are available processing temperatures that meet the requirements, the highest available processing temperature that meets the requirements is used to control the heating device of the thermoforming process.

[0103] In another possible embodiment, determining that the matching degree of the available processing temperature does not meet the requirement specifically includes:

[0104] S31: determining the percentage of sanitary product filter plates with abnormal types in different processing time intervals based on the change in the heat treatment abnormality data in different processing time intervals within the maximum operating time range at the available processing temperature; and determining the processing abnormality values in different processing time intervals based on the percentage of sanitary product filter plates with abnormal types in different processing time intervals and the number of sanitary product filter plates manufactured;

[0105] S32 determines the abnormal value variation coefficients of different processing time intervals according to the variation amounts of the processing abnormal values in different adjacent processing time intervals;

[0106] S33 determines the adaptation deviation coefficient of the available processing temperature based on the processing abnormal values and abnormal value variation coefficients in different processing time intervals, and uses the adaptation deviation coefficient to determine whether the matching degree of the available processing temperature meets the requirements.

[0107] Furthermore, when the adaptation deviation coefficient of the available processing temperature is greater than a preset adaptation deviation coefficient threshold, it is determined that the matching degree of the available processing temperature does not meet the requirement.

[0108] Optionally, the above step S31 includes the following contents:

[0109] S311: when the longest processing time of the available processing temperature is less than the preset time threshold, it is determined that the matching degree of the available processing temperature does not meet the requirement; when the longest processing time of the available processing temperature is not less than the preset time threshold, the variation of the heat treatment abnormality data in different processing time intervals within the maximum operating time range at the available processing temperature is used to determine the proportion of sanitary product filter plates with abnormal types in different processing time intervals; when the average value of the proportion of sanitary product filter plates with abnormal types in different processing time intervals does not meet the requirement, it is determined that the matching degree of the available processing temperature does not meet the requirement; when the average value of the proportion of sanitary product filter plates with abnormal types in different processing time intervals meets the requirement, the process proceeds to step S312;

[0110] It should be noted that this step is to achieve the screening of available processing temperatures whose longest processing time is less than the preset time threshold and whose number of abnormal types of sanitary product filter plates in different processing time intervals accounts for a large proportion. For available processing temperatures whose longest processing time is less than the preset time threshold and whose number of abnormal types of sanitary product filter plates in different processing time intervals accounts for a large proportion, it is essentially difficult to meet the processing needs, so its matching degree is difficult to meet the requirements.

[0111] It is understandable that whether the average value of the proportion of abnormal sanitary product filter plates within different processing time intervals meets the requirements can be determined by setting a fixed proportion threshold or the like.

[0112] By first screening the available processing temperatures under extreme conditions, the screening of available processing temperatures that match the requirements can be greatly improved.

[0113] In step S312, when the proportion of the number of sanitary product filter plates with abnormal types in different processing time intervals is less than the preset filter plate number proportion threshold, the process proceeds to step S313; when the proportion of the number of sanitary product filter plates with abnormal types is not less than the preset filter plate number proportion threshold in the processing time interval, the process proceeds to step S314;

[0114] In schematic form, when the proportion of sanitary product filter plates of abnormal types within different processing time intervals is less than the preset filter plate proportion threshold, it indicates that the processing reliability of sanitary product filtering at the available processing temperature is high. Therefore, as long as it is further determined that the number of sanitary product filter plates of abnormal types within different processing time intervals also meets the requirements, for example, when it is less than the preset number threshold, it can be directly determined that the matching degree of the available processing temperature meets the requirements.

[0115] Specifically, the preset filter quantity ratio threshold can be determined by pre-setting, expert scoring, etc., and its goal is to ensure that the number of abnormal types of sanitary product filter plates within different processing time intervals is very small.

[0116] S313: When the number of sanitary product filter plates of abnormal types within different processing time intervals all meets the requirements, it is determined that the matching degree of the available processing temperature meets the requirements; when the number of sanitary product filter plates of abnormal types does not meet the required processing time interval, the process proceeds to step S314;

[0117] Specifically, when the number of abnormal sanitary product filter plates within different processing time intervals is less than a certain threshold, it is determined that the processing reliability within the different processing time intervals meets the requirements.

[0118] By further combining the judgment condition of step S312, it can be clearly determined that the matching degree of the available processing temperature meets the requirements, and the processing using the available processing temperature can meet the processing reliability requirements.

[0119] S314 determines the processing abnormality values of different processing time intervals based on the proportion of sanitary product filter plates with abnormal types in different processing time intervals and the manufacturing quantity of sanitary product filter plates. When the number of processing time intervals where the processing abnormality values do not meet the requirements is within the preset time interval number range, it is determined that the matching degree of the available processing temperature does not meet the requirements. When the number of processing time intervals where the processing abnormality values do not meet the requirements is not within the preset time interval number range, proceed to step S32.

[0120] Optionally, the above step S32 includes the following contents:

[0121] S321: Based on the variation of the processing abnormal values in different adjacent processing time intervals, if there is a processing time interval whose variation does not meet the requirements, then the process proceeds to step S322; if there is no processing time interval whose variation does not meet the requirements, then the process proceeds to step S323;

[0122] Specifically, for a processing time interval in which the variation of the processing abnormality value is greater than a fixed threshold, it is determined that the variation degree thereof is difficult to meet the requirement compared with the number of adjacent sanitary product filter plates with abnormal types.

[0123] When the degree of variation of the processing abnormality values within different processing time intervals is difficult to meet the requirements, the stability of the processing at the available processing temperature is further evaluated based on the number of processing time intervals in which the variation does not meet the requirements.

[0124] Specifically, whether the requirement is met can be determined by the deviation between the change amount and a preset change amount threshold.

[0125] S322: When the number of processing time intervals whose variation does not meet the requirement is within the range of the preset time intervals, it is determined that the matching degree of the available processing temperature does not meet the requirement; when the number of processing time intervals whose variation does not meet the requirement is not within the range of the preset time intervals, the process proceeds to step S323;

[0126] When there are processing time intervals whose variation does not meet the requirements, and the number of processing time intervals whose variation does not meet the requirements is large, that is, within the range of the preset time interval number, it means that the processing stability of the available processing temperature is difficult to meet the requirements.

[0127] For available processing temperatures whose processing stability is difficult to meet the requirements, it can be directly determined that the matching degree does not meet the requirements. Through the coordination of step S321 and step S322, the available processing temperatures whose processing stability does not meet the requirements can be screened.

[0128] S323 determines the abnormal value variation coefficients of different processing time intervals based on the variation amounts of the processing abnormal values in different adjacent processing time intervals. When the average value of the abnormal value variation coefficients of different processing time intervals does not meet the requirements, it is determined that the matching degree of the available processing temperature does not meet the requirements. When the average value of the abnormal value variation coefficients of different processing time intervals meets the requirements, the process proceeds to step S324.

[0129] It should be noted that by determining the abnormal value variation coefficient based on the variation of the processing abnormal values in adjacent processing time intervals, it is possible to screen the processing stability of the available processing temperatures from the perspective of the variation of the processing abnormal values in all processing time intervals, thereby further realizing the screening of available processing temperatures whose processing stability is difficult to meet the requirements.

[0130] In one embodiment, the variation of the processing abnormal value can be directly used as the abnormal value variation coefficient.

[0131] S324: When there is no processing time interval in which the abnormal value variation coefficient does not meet the requirements, it is determined that the matching degree of the available processing temperature meets the requirements; when there is a processing time interval in which the abnormal value variation coefficient does not meet the requirements, the process proceeds to step S33.

[0132] S4 generates a control processing scheme for the thermoforming process based on the average processing temperature of different processing schemes under the preset control mode, the temperature switching data between different processing schemes, and the number of processing schemes.

[0133] Furthermore, a processing plan is constructed based on different available processing temperatures, including:

[0134] The processing plan is constructed based on the available processing temperatures and the control processing modes of the heating device corresponding to the available processing temperatures.

[0135] Specifically, the preset control mode is that different available processing temperatures are controlled by the heating device of the thermoforming process within a preset control time, and after the preset control time is reached, the heating device of the thermoforming process is controlled according to the available processing temperatures from large to small.

[0136] It should be noted that the average processing temperature is determined according to the average value of available processing temperatures of different processing schemes in the processing scheme.

[0137] Specifically, such as Figure 5 As shown in the figure, a control solution for the thermoforming process is generated, which specifically includes:

[0138] Determining an average value of a temperature reduction amplitude when switching between the processing schemes of the processing schemes based on the temperature switching data between the processing schemes of the processing schemes;

[0139] Determining, based on the number of processing solutions in the processing solution, a proportion of the operating time within the preset temperature range and a proportion of the operating time within the second preset temperature range;

[0140] Based on the average processing temperature of the processing scheme under the preset control mode, the average value of the temperature reduction amplitude during switching processing, the proportion of operating time within the preset temperature range, and the proportion of operating time within the second preset temperature range, the scheme adaptation coefficient of the processing scheme is determined. Based on the ratio of the scheme adaptation coefficient to the number of processing schemes, the availability coefficient of the processing scheme is determined, and based on the availability coefficient, a control processing scheme for the thermoforming process is generated.

[0141] Furthermore, the scheme adaptation coefficient of the processing scheme is determined based on the ratio of the product of the average processing temperature of the processing scheme under the preset control mode, the proportion of the operating time in the preset temperature range, and the proportion of the operating time in the second preset temperature range, to the average value of the temperature reduction amplitude during the switching process.

[0142] It can be understood that the control processing scheme of the thermoforming process is a processing scheme with the largest available coefficient.

[0143] It should be noted that the preset temperature interval is a temperature interval in which the heating temperature is greater than the preset heating temperature threshold, and the second preset temperature interval is a temperature interval in which the heating temperature is less than the second preset heating temperature threshold, wherein the preset heating temperature threshold is determined based on the available heating temperature whose corresponding heating processing time is less than the preset heating processing time, and the second preset heating temperature threshold is determined based on the product of the rated heating temperature of the heating device and the preset proportional factor.

[0144] Example 2

[0145] In a second aspect, the present application provides a filter plate for sanitary products, which adopts the above-mentioned thermoforming process control method, specifically comprising:

[0146] It is made of thermoplastic plastic sheets using a thermoforming process.

[0147] The various embodiments in this specification are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the device, apparatus, and non-volatile computer storage medium embodiments are generally similar to the method embodiments, so their descriptions are relatively simplified. For relevant details, refer to the descriptions of the method embodiments.

[0148] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0149] The foregoing description is merely one or more embodiments of this specification and is not intended to limit this specification. It will be apparent to those skilled in the art that various modifications and variations may be made to one or more embodiments of this specification. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of one or more embodiments of this specification are intended to be within the scope of the claims of this specification.

Claims

1. A thermoforming process control method, characterized in that: Specifically include: Determining, based on the material type of the sanitary product filter plate, a control processing mode for circulating hot air of a heating device at different processing temperatures for the sanitary product filter plate, and determining, based on the heat treatment abnormality data of the heating device under the control processing mode, an available processing temperature among the processing temperatures; Acquiring abnormal data of the heating device within different single operation time intervals at the available processing temperature, and determining a maximum operation time of the heating device based on the abnormal data; Based on the variation of the abnormal heat treatment data within different processing time intervals within the maximum operating time range at the available processing temperature, when it is determined that there is no available processing temperature that meets the requirements, constructing a processing plan based on different available processing temperatures, and freely combining the processing plans to generate a processing plan; Generate a control plan for the thermoforming process based on the average processing temperature of different processing plans under the preset control mode, the temperature switching data between different processing plans, and the number of processing plans; The method for determining the usable processing temperature among the processing temperatures is: Determining abnormal data of the sanitary product filter plate under different abnormality types under the control processing mode using the abnormal heat treatment data of the heating device under the control processing mode; Based on the abnormal data under different abnormal types, the proportion of sanitary product filter plates with abnormal types in different processing times is determined; determining whether a processing temperature corresponding to the control processing mode is an applicable processing temperature based on an average value of the proportion of abnormal sanitary product filter plates in different processing times; Determining that the degree of matching of the available processing temperature does not meet the requirements specifically includes: Determine the proportion of sanitary product filter plates with abnormal types in different processing time intervals based on the change of heat treatment abnormality data in different processing time intervals within the maximum operating time range at the available processing temperature; Determining the quantity ratio change in different processing time intervals according to the quantity ratio change of the abnormal type of sanitary product filter plates in different adjacent processing time intervals; Determining whether the matching degree of the available processing temperature meets the requirements based on the change in the number of different processing time intervals; When the average value of the quantity proportion variation in different processing time intervals is greater than the preset variation threshold or the longest processing time of the available processing temperature is less than the preset time threshold, it is determined that the matching degree of the available processing temperature does not meet the requirements.

2. The thermoforming process control method according to claim 1, characterized in that: The material type includes material type and plate thickness.

3. The thermoforming process control method according to claim 2, characterized in that: Such material types include polypropylene, polycarbonate, and polysulfone.

4. The thermoforming process control method according to claim 1, characterized in that: The control processing mode of the circulating hot air of the heating device is determined according to the material type of the sanitary product filter plate, the rotation angle range and the rotation speed of the circulating hot air of the heating device at the processing temperature.

5. The thermoforming process control method according to claim 1, characterized in that: When the average value of the percentage of abnormal sanitary product filter plates in different processing times is less than a preset abnormal percentage threshold, the processing temperature corresponding to the control processing mode is determined to be an available processing temperature.

6. The thermoforming process control method according to claim 1, characterized in that: The preset control mode is that different available processing temperatures are controlled by the heating device of the thermoforming process within a preset control time, and after the preset control time is reached, the heating device of the thermoforming process is controlled according to the available processing temperatures from large to small.

7. The thermoforming process control method according to claim 1, characterized in that: The average processing temperature is determined according to an average value of available processing temperatures of different processing plans in the processing plan.

8. The thermoforming process control method according to claim 1, characterized in that: Generate a control solution for the thermoforming process, including: Determining an average value of a temperature reduction amplitude when switching between the processing schemes of the processing schemes based on the temperature switching data between the processing schemes of the processing schemes; Determining, based on the number of processing solutions in the processing solution, a proportion of the operating time within the preset temperature range and a proportion of the operating time within the second preset temperature range; Based on the average processing temperature of the processing scheme under the preset control mode, the average value of the temperature reduction amplitude during switching processing, the proportion of operating time within the preset temperature range, and the proportion of operating time within the second preset temperature range, the scheme adaptation coefficient of the processing scheme is determined. Based on the ratio of the scheme adaptation coefficient to the number of processing schemes, the availability coefficient of the processing scheme is determined, and based on the availability coefficient, a control processing scheme for the thermoforming process is generated.

9. A filter plate for sanitary products, using a thermoforming process control method according to any one of claims 1 to 8, characterized in that: Specifically include: It is made of thermoplastic sheets using a thermoforming process.

Images