Intelligent vulcanization control method and system for container sealing strip production

Abstract

The present invention discloses an intelligent vulcanization control method and system for the production of container sealing strips, and belongs to the technical field of sealing strip vulcanization. An intelligent vulcanization control method for the production of container sealing strips, comprising the following steps: S1: calculating the vulcanization time; S2: setting the standard value of the vulcanization parameters of the sealing strip during vulcanization, S3: real-time monitoring of the vulcanization parameters of the sealing strip, S4: adjusting and controlling part of the vulcanization parameters. The present invention solves the problem that the existing patents cannot control the vulcanization time, vulcanization temperature and pressure of the sealing strip, which affects the elasticity, wear resistance and aging resistance of the sealing strip. The present invention makes corresponding adjustments according to the monitored temperature and pressure to achieve real-time control of the vulcanization parameters of the sealing strip, so that the temperature and pressure of the sealing strip are always in a constant state during the vulcanization process, and can ensure that all the vulcanization parameters of the sealing strip during the vulcanization process are within the standard value.

Description

Technical Field

[0001] The invention relates to the technical field of sealing strip vulcanization, and in particular to an intelligent vulcanization control method and system for producing container sealing strips. Background Art

[0002] Container sealing strips refer to sealing strips or plastic strips used to seal the door seams and other enclosed parts of containers. They play an important role in ensuring the airtightness and waterproofness of the inside and outside of the container. The sealing strips need to be vulcanized during production so that the sealing strips have the advantages of longer aging time, cold and heat resistance, and excellent bendability.

[0003] A Chinese patent with publication number CN209533958U discloses a sealing strip vulcanization system, including: a primary vulcanization mechanism and a secondary vulcanization mechanism; when the sealing strip passes through the primary vulcanization mechanism, the primary vulcanization mechanism vulcanizes and cures the sealing strip; when the sealing strip passes through the secondary vulcanization mechanism, the secondary vulcanization mechanism vulcanizes the sealing strip; thereby, the sealing strip has excellent bending properties, a longer service life, and excellent cold and heat resistance.

[0004] The above patent cannot control the vulcanization time, vulcanization temperature and pressure of the sealing strip during actual use, which affects the elasticity, wear resistance and aging resistance of the vulcanized sealing strip, affecting the use effect of the sealing strip. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent vulcanization control method and system for the production of container sealing strips, which can make corresponding adjustments according to the monitored temperature and pressure to achieve real-time control of the vulcanization parameters of the sealing strips, so that the temperature and pressure of the sealing strips are always in a constant state during the vulcanization process, and can ensure that all vulcanization parameters of the sealing strips are within the standard values ​​during the vulcanization process, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for intelligent vulcanization control of container sealing strip production, comprising the following steps:

[0007] S1: Calculate the vulcanization time, which includes a safety time set according to the vulcanization influencing factors that affect the vulcanization time, and vulcanize the sealing strip according to the calculated vulcanization time;

[0008] S2: setting the standard value of the vulcanization parameters of the sealing strip during vulcanization, the vulcanization parameters include the vulcanization state vulcanization parameters, the vulcanization pressure vulcanization parameters and the vulcanization temperature vulcanization parameters of the sealing strip;

[0009] S3: During the vulcanization process, the vulcanization parameters of the sealing strip are monitored in real time, and it is determined whether the vulcanization state and vulcanization temperature are in the standard state;

[0010] S4: If it is not within the standard value, the vulcanization parameter part that is not within the standard value is adjusted and controlled according to the result of the real-time judgment, so that the vulcanization parameter is always kept within the standard value.

[0011] Preferably, the calculating of the vulcanization time specifically includes:

[0012] According to the time-dependent changes in the temperature distribution of the sealing strip and the data of individual vulcanization influencing factors, the safety time set according to each vulcanization influencing factor is shortened, and the vulcanization time is preliminarily determined;

[0013] During the initially determined vulcanization time, vulcanization test is performed on the sealing strip to observe the changes in the physical, mechanical and other properties of the sealing strip;

[0014] According to the results of the vulcanization test, the performance of the sealing strip is evaluated, including elasticity, strength and durability;

[0015] Adjust the vulcanization time according to the results of the vulcanization test and performance evaluation. If the performance of the sealing strip does not meet expectations, continue to extend the vulcanization time. If the performance of the sealing strip reaches expectations ahead of schedule, shorten the vulcanization time.

[0016] Repeat the vulcanization test and performance evaluation until the optimal vulcanization time is found.

[0017] Preferably, if the value is not within the standard value, the vulcanization parameter part that is not within the standard value is adjusted and controlled according to the result of real-time judgment, specifically including:

[0018] When the judgment result is that the vulcanization temperature exceeds the standard value, the vulcanization temperature is adjusted;

[0019] When the judgment result shows that the vulcanization pressure exceeds the standard value, the vulcanization pressure is adjusted;

[0020] When the judgment result is that the vulcanization state does not conform to the vulcanization state of the current time period, the flow rate of the sealing strip during vulcanization is adjusted in combination with the vulcanization temperature and the vulcanization pressure.

[0021] Preferably, when the judgment result is that the vulcanization temperature exceeds the standard value, the vulcanization temperature is adjusted, specifically including:

[0022] When it is judged that the current vulcanization temperature is higher than the standard value of the vulcanization temperature, the electromagnetic heater is controlled to reduce the heating power;

[0023] When the current vulcanization temperature is judged to be lower than the standard value of the vulcanization temperature, the electromagnetic heater is controlled to increase the heating power. When the temperature is too high or out of control, an alarm is issued.

[0024] When it is determined that the current vulcanization temperature reaches the standard vulcanization temperature, the electromagnetic heater is controlled to reduce the heating power to keep the temperature stable and constant.

[0025] Preferably, the flow rate of the sealing strip during vulcanization is adjusted, specifically including:

[0026] If it is determined that the temperature difference between the upper and lower parts of the sealing strip is large, the flow control valve is adjusted to reduce the temperature difference between the upper and lower parts;

[0027] When the surface of the sealing strip reaches positive vulcanization, adjust the flow control valve to a small value, and control the sealing strip condensation time interval according to the vulcanization temperature and vulcanization pressure in the current time period to reduce the temperature difference between the upper and lower parts of the sealing strip;

[0028] Until the entire sealing strip reaches the positive vulcanization state, the vulcanization state is adjusted.

[0029] An intelligent vulcanization control system for producing container sealing strips is applied in an intelligent vulcanization control method for producing container sealing strips. The system comprises:

[0030] Data acquisition module, used to monitor the vulcanization temperature and vulcanization pressure of the sealing strip in real time, and record the vulcanization status of the sealing strip;

[0031] A judgment module is used to judge and analyze the vulcanization temperature, vulcanization pressure and vulcanization state of the sealing strip collected during the vulcanization process to determine whether the vulcanization temperature, vulcanization pressure and vulcanization state are within the standard value range;

[0032] The control module is used to adjust the vulcanization parameters that exceed the standard values ​​according to the judgment result of the judgment module, and stop after adjusting to the standard values. The vulcanization parameters include vulcanization temperature, vulcanization pressure and vulcanization state of the sealing strip.

[0033] Preferably, the data acquisition module comprises:

[0034] The temperature acquisition module is used to collect the vulcanization temperature of the sealing strip in different time periods in real time through the temperature measuring sensor, and record the vulcanization status of the sealing strip.

[0035] The pressure acquisition module is used to collect the sealing strip pressure data of different vulcanization time periods in real time through the pressure sensor, and compare the pressure data with the standard pressure data set for the time period;

[0036] The vulcanization status collection module is used to collect the status of the sealing strip in different vulcanization time periods in real time and compare the status with the standard status set for the time period.

[0037] Preferably, the temperature sensor is composed of a temperature sensor, a low-power controller, a small battery, an RFIC chip and an antenna. The temperature sensor is connected to the low-power controller, the low-power controller is connected to the RFIC chip, and the RFIC chip is connected to the antenna.

[0038] Preferably, it also includes a vulcanization parameter standard value determination module, and the vulcanization parameter standard value determination module includes:

[0039] The model building submodule is used to build a deep neural network model, and use the historically stored environmental parameters, vulcanization temperature, vulcanization pressure and vulcanization state to establish a training set, a validation set and a test set. The training set, the validation set and the test set are used in turn to train, adjust and test the deep neural network model. After the training is completed, a parameter standard value prediction model is obtained; the environmental parameters include ambient temperature, ambient humidity and cleanliness;

[0040] The data preprocessing submodule uses embedded sensors to collect real-time environmental parameters during the rubber vulcanization process and performs median filtering on the real-time environmental parameters;

[0041] The standard value prediction submodule is used to input the real-time environmental parameters collected in real time and processed by median filtering as input parameters into the parameter standard value prediction model to obtain the standard value of the vulcanization parameter;

[0042] The control optimization submodule is used to collect product quality data after vulcanization and perform online optimization processing on the parameter standard value prediction model, thereby optimizing the control strategy.

[0043] Preferably, it also includes a vulcanization effect verification module, and the vulcanization effect verification module includes:

[0044] The image acquisition submodule is used to take the vulcanization image of the sealing strip in real time through a CCD camera during the vulcanization process, and perform image brightness adjustment, image filtering and image enhancement processing on the sealing strip image in sequence to obtain the processed vulcanization image of the sealing strip;

[0045] The image recognition and segmentation submodule uses image recognition technology to perform sealing strip image recognition on the processed sealing strip vulcanization image, and uses image segmentation technology to perform image segmentation to obtain a segmented sealing strip image;

[0046] The image comparison submodule is used to compare the segmented sealing strip image with the vulcanized qualified sealing strip image pre-stored in the database. The image similarity is calculated using the following formula:

[0047]

[0048] In the above formula, S represents the image similarity between the segmented sealing strip image and the vulcanized qualified sealing strip image; a represents the set constant, taking a=1; k represents the number of pixel image parameters; n represents the number of pixels in the segmented sealing strip image; ω ij represents the i-th image parameter of the j-th pixel of the segmented sealing strip image; m represents the number of pixels of the vulcanized qualified sealing strip image pre-stored in the database; ω iτ represents the i-th image parameter of the τ-th pixel point of the vulcanized qualified sealing strip image pre-stored in the database;

[0049] The vulcanization verification submodule is used to compare the image similarity calculated by the image comparison submodule with a preset similarity threshold. If the image similarity is not less than the similarity threshold, the vulcanization of the corresponding sealing strip is terminated.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] The present invention can prolong or shorten the vulcanization time according to the performance of the sealing strip, so that the vulcanization time of the sealing strip can be flexibly controlled during vulcanization, and corresponding adjustments can be made according to the monitored temperature and pressure to achieve real-time control of the vulcanization parameters of the sealing strip, so that the temperature and pressure of the sealing strip are always in a constant state during the vulcanization process, thereby ensuring that the sealing strip can ultimately ensure that the vulcanization degree of each part reaches the required value, and can ensure that all vulcanization parameters of the sealing strip during the vulcanization process are within the standard value, so that the quality of the vulcanized sealing strip is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the intelligent vulcanization control method for producing container sealing strips of the present invention;

[0053] Figure 2 This is a schematic diagram of the intelligent vulcanization control system for producing container sealing strips of the present invention. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] In order to solve the problem that the existing patent cannot control the vulcanization time, vulcanization temperature and pressure of the sealing strip during actual use, thereby affecting the elasticity, wear resistance and aging resistance of the vulcanized sealing strip, which affects the use effect of the sealing strip, please refer to Figure 1-Figure 2 , this embodiment provides the following technical solutions:

[0056] An intelligent vulcanization control method for producing container sealing strips comprises the following steps:

[0057] S1: Calculate the vulcanization time. The vulcanization time includes the safety time set according to the vulcanization influencing factors that affect the vulcanization time. Vulcanize the sealing strip according to the calculated vulcanization time. At the same time, the vulcanization state of the sealing strip is monitored in real time during the vulcanization process. When it is monitored that the performance of the sealing strip does not meet the expectations, the vulcanization time is further extended. When it is monitored that the performance of the sealing strip reaches the expectations ahead of schedule, the vulcanization time is shortened. The vulcanization time of the sealing strip can be flexibly controlled to ensure the working efficiency of the vulcanization of the sealing strip.

[0058] S2: Set the standard values ​​of the vulcanization parameters of the sealing strip during vulcanization. The vulcanization parameters include the vulcanization state vulcanization parameters, vulcanization pressure vulcanization parameters and vulcanization temperature vulcanization parameters of the sealing strip. By setting the standard vulcanization parameters, it is possible to quickly understand whether the vulcanization parameters of the sealing strip meet the standard values. If not, adjustments can be made quickly to ensure the vulcanization effect of the sealing strip.

[0059] S3: During the vulcanization process, the vulcanization parameters of the sealing strip are monitored in real time, and it is determined whether the vulcanization state and vulcanization temperature are in the standard state. By comparing the vulcanization parameters of the sealing strip monitored in real time with the preset standard vulcanization parameters, it is possible to quickly determine whether the vulcanization parameters of the sealing strip are standard. If not, timely adjustments are made to achieve intelligent control of the vulcanization parameters of the sealing strip.

[0060] S4: If it is not within the standard value, the part of the vulcanization parameter that is not within the standard value is adjusted and controlled according to the result of real-time judgment, so that the vulcanization parameter always remains within the standard value, and can be adjusted in time according to the change of the vulcanization parameter, so that the vulcanization parameter always remains in a constant state, thereby ensuring the control effect of the vulcanization parameter.

[0061] Calculate the curing time, including:

[0062] According to the change of temperature distribution of sealing strip over time and the data of individual vulcanization influencing factors, the safety time set according to each vulcanization influencing factor is shortened, and the vulcanization time is preliminarily determined.

[0063] During the initially determined vulcanization time, the sealing strip is subjected to a vulcanization test to observe changes in the physical, mechanical and other properties of the sealing strip.

[0064] Based on the results of the vulcanization test, the performance of the sealing strip is evaluated, and the performance of the sealing strip includes elasticity, strength and durability.

[0065] The vulcanization time is adjusted according to the results of the vulcanization test and the performance evaluation. If the performance of the sealing strip does not meet expectations, the vulcanization time is further extended. If the performance of the sealing strip reaches expectations ahead of schedule, the vulcanization time is shortened.

[0066] Repeat the vulcanization test and performance evaluation until the optimal vulcanization time is found.

[0067] Specifically, when calculating the vulcanization time of the sealing strip, the factors affecting the vulcanization time of the sealing strip are obtained, the time-dependent temperature of the surface of the sealing strip is calculated using the difference method, and the time-dependent change of the temperature distribution of the sealing strip is obtained. According to the data of the time-dependent change of the temperature distribution, the time-dependent equivalent vulcanization degree of the surface of the sealing strip is calculated using the Arrhenius reaction rate formula, and the time-dependent change of the vulcanization degree distribution is obtained. According to the time-dependent change of the vulcanization degree distribution, the time-dependent change of the temperature distribution on the surface of the sealing strip is obtained. According to the time-dependent change of the temperature distribution on the surface of the sealing strip, the vulcanization time of the sealing strip is obtained. When the sealing strip is vulcanized, the safety time set according to each vulcanization influencing factor can be shortened according to the time-dependent change of the temperature distribution of the sealing strip and the data of individual vulcanization influencing factors. Then, the vulcanization time can be extended or shortened according to the performance of the sealing strip, so that the vulcanization time of the sealing strip can be flexibly controlled when the sealing strip is vulcanized.

[0068] If it is not within the standard value, the vulcanization parameters that are not within the standard value are adjusted and controlled according to the results of real-time judgment, including:

[0069] When the judgment result is that the vulcanization temperature exceeds the standard value, the vulcanization temperature is adjusted.

[0070] When the judgment result is that the vulcanization pressure exceeds the standard value, the vulcanization pressure is adjusted.

[0071] The vulcanization pressure is detected by a pressure sensor. When insufficient pressure is detected, the pressurizing equipment is started to supplement the pressure. When the required pressure is reached, the pressurizing equipment can be controlled to stop pressurizing.

[0072] When the judgment result is that the vulcanization state does not conform to the vulcanization state of the current time period, the flow rate of the sealing strip during vulcanization is adjusted in combination with the vulcanization temperature and the vulcanization pressure.

[0073] Specifically, by real-time monitoring of the temperature and pressure during vulcanization, corresponding adjustments can be made according to the monitored temperature and pressure to achieve real-time control of the vulcanization parameters of the sealing strip, and it can be ensured that all vulcanization parameters of the sealing strip during the vulcanization process are within the standard values, so that the quality of the vulcanized sealing strip is better.

[0074] When the judgment result is that the vulcanization temperature exceeds the standard value, the vulcanization temperature is adjusted, including:

[0075] When it is determined that the current vulcanization temperature is higher than the standard value of the vulcanization temperature, the electromagnetic heater is controlled to reduce the heating power.

[0076] When it is judged that the current vulcanization temperature is lower than the standard value of the vulcanization temperature, the electromagnetic heater is controlled to increase the heating power to keep the temperature constant. When the temperature is too high or out of control, an alarm is issued.

[0077] When it is determined that the current vulcanization temperature reaches the standard vulcanization temperature, the electromagnetic heater is controlled to reduce the heating power to keep the temperature stable and constant.

[0078] Specifically, due to excessively high or low temperature during vulcanization, the vulcanization reaction of the sealing strip will be insufficient, and the internal part of the rubber will not be completely vulcanized, resulting in the cleavage of the rubber molecular chain and the breaking of the cross-linking bonds, reducing the sealing, strength and durability of the product, and easily causing thermal cracks and cracking, reducing the service life of the product. Therefore, by real-time monitoring of the vulcanization temperature and comparing the real-time monitored vulcanization temperature with the set vulcanization standard temperature, and making corresponding adjustments based on the real-time monitored vulcanization temperature, it is possible to quickly understand whether the vulcanization temperature meets the standard value, and when it is monitored that the vulcanization temperature does not meet the standard temperature, timely adjustments are made to ensure that the temperature of the sealing strip is always in a constant state during the vulcanization process, thereby ensuring that the sealing strip can ultimately ensure that the vulcanization degree of each part reaches the required value.

[0079] Adjust the flow rate during vulcanization of the sealing strip, including

[0080] If it is determined that the temperature difference between the upper and lower parts of the sealing strip is large, the flow control valve is adjusted to reduce the temperature difference between the upper and lower parts.

[0081] When the surface of the sealing strip reaches positive vulcanization, adjust the flow control valve to a small value, and control the sealing strip decondensation time interval according to the vulcanization temperature and vulcanization pressure in the current time period to reduce the temperature difference between the upper and lower parts of the sealing strip.

[0082] Until the entire sealing strip reaches the positive vulcanization state, the vulcanization state is adjusted.

[0083] By real-time monitoring of the vulcanization state of the sealing strip and adjusting the flow of the sealing strip according to the vulcanization state, the vulcanization state is always in a positive vulcanization state, which can effectively improve the elasticity, strength and durability of the sealing strip.

[0084] An intelligent vulcanization control system for producing container sealing strips is applied in an intelligent vulcanization control method for producing container sealing strips. The system comprises:

[0085] The data acquisition module is used to monitor the vulcanization temperature and vulcanization pressure of the sealing strip in real time, and record the vulcanization status of the sealing strip. It can understand the vulcanization parameters and vulcanization status of the sealing strip in real time, and can promptly discover and adjust when it does not meet the standard value, ensuring that the vulcanization process is always in a standard state and improving the vulcanization quality of the sealing strip.

[0086] The judgment module is used to judge and analyze the vulcanization temperature, vulcanization pressure and vulcanization state of the sealing strip collected during the vulcanization process, and judge whether the vulcanization temperature, vulcanization pressure and vulcanization state are within the standard value range. It can timely understand whether the vulcanization parameters of the sealing strip are within the standard value range. If not, timely adjustments can be made.

[0087] The control module is used to make corresponding adjustments to the vulcanization parameters that exceed the standard values ​​according to the judgment results of the judgment module, and stop after adjusting to the standard values. The vulcanization parameters include the vulcanization temperature, the vulcanization pressure and the vulcanization state of the sealing strip. The vulcanization parameters and the vulcanization state of the sealing strip can be adjusted and controlled accordingly, so that the vulcanization parameters of the sealing strip are always in a stable state during the vulcanization process, thereby improving the elasticity, wear resistance and aging resistance of the sealing strip.

[0088] Data acquisition module, including:

[0089] The temperature acquisition module is used to collect the vulcanization temperature of the sealing strip in different time periods in real time through the temperature measuring sensor, and record the vulcanization status of the sealing strip.

[0090] The pressure acquisition module is used to collect the sealing strip pressure data of different vulcanization time periods in real time through a pressure sensor, and compare the pressure data with the standard pressure data set for the time period.

[0091] The vulcanization status collection module is used to collect the status of the sealing strip in different vulcanization time periods in real time and compare the status with the standard status set for the time period.

[0092] The temperature sensor is composed of a temperature sensor, a low-power controller, a small battery, an RFIC chip and an antenna. The temperature sensor is connected to the low-power controller, the low-power controller is connected to the RFIC chip, the RFIC chip is connected to the antenna, the low-power controller and the RFIC chip are connected to a small battery, and the measurement reader communicates wirelessly with the RFIC chip. All components used are high-temperature resistant components. The temperature acquisition module automatically measures and records temperature data during the vulcanization process. After the vulcanization is completed, the measurement reader uses a wireless method to read the temperature data in the temperature acquisition module, thereby completing the temperature data measurement, which can realize accurate reading of the measurement data, and more accurately adjust the vulcanization temperature during the vulcanization process, thereby ensuring the vulcanization effect of the sealing strip.

[0093] On the basis of the above-mentioned embodiment, the intelligent vulcanization control system for container sealing strip production further includes a vulcanization parameter standard value determination module, and the vulcanization parameter standard value determination module includes:

[0094] The model building submodule is used to build a deep neural network model, and use the historically stored environmental parameters, vulcanization temperature, vulcanization pressure and vulcanization state to establish a training set, a validation set and a test set. The training set, the validation set and the test set are used in turn to train, adjust and test the deep neural network model. After the training is completed, a parameter standard value prediction model is obtained; the environmental parameters include ambient temperature, ambient humidity and cleanliness;

[0095] The data preprocessing submodule uses embedded sensors to collect real-time environmental parameters during the rubber vulcanization process and performs median filtering on the real-time environmental parameters;

[0096] The standard value prediction submodule is used to input the real-time environmental parameters collected in real time and processed by median filtering as input parameters into the parameter standard value prediction model to obtain the standard value of the vulcanization parameter;

[0097] The control optimization submodule is used to collect product quality data after vulcanization and perform online optimization processing on the parameter standard value prediction model, thereby optimizing the control strategy.

[0098] By adopting the above technical scheme, a deep neural network model is constructed and the model training is performed to obtain a parameter standard value prediction model; then, according to the environmental parameters detected at the sealing strip production site after the abnormal data is eliminated by median filtering, the parameter standard value prediction model is input, and the vulcanization parameter standard value under the current real-time production site environmental conditions is output. Since the training and input of the parameter standard value prediction model take the environmental parameters into consideration, and the environmental parameters are changeable, the climate at different times is different, and the environmental parameters are different, which will affect the vulcanization effect, resulting in different vulcanization parameter standard values. The scheme of the present invention, when determining the vulcanization parameter standard value, can obtain the optimal vulcanization control parameters that are compatible with the local climate and environment-related conditions when producing at different times in different geographical locations, and use this optimal vulcanization control parameter as the vulcanization parameter standard value to implement the vulcanization condition control during the vulcanization process, and can obtain a vulcanized sealing strip product with better quality, thereby improving the environmental intelligent adaptability of the vulcanization process, ensuring the vulcanization quality and quality consistency of the sealing strip, and being conducive to improving the product vulcanization qualified rate in any environment.

[0099] On the basis of the above-mentioned embodiment, the intelligent vulcanization control system for container sealing strip production further includes a vulcanization effect verification module, which includes:

[0100] The image acquisition submodule is used to take the vulcanization image of the sealing strip in real time through a CCD camera during the vulcanization process, and perform image brightness adjustment, image filtering and image enhancement processing on the sealing strip image in sequence to obtain the processed vulcanization image of the sealing strip;

[0101] The image recognition and segmentation submodule uses image recognition technology to perform sealing strip image recognition on the processed sealing strip vulcanization image, and uses image segmentation technology to perform image segmentation to obtain a segmented sealing strip image;

[0102] The image comparison submodule is used to compare the segmented sealing strip image with the vulcanized qualified sealing strip image pre-stored in the database. The image similarity is calculated using the following formula:

[0103]

[0104] In the above formula, S represents the image similarity between the segmented sealing strip image and the vulcanized qualified sealing strip image; a represents a set constant, which is used to prevent the algorithm formula denominator from being zero, causing calculation problems. Generally, a=1 can be taken, so that the range of similarity will be within (0, 1]; k represents the number of pixel image parameters; n represents the number of pixels in the segmented sealing strip image; ω ij represents the i-th image parameter of the j-th pixel of the segmented sealing strip image; m represents the number of pixels of the vulcanized qualified sealing strip image pre-stored in the database; ω iτ represents the i-th image parameter of the τ-th pixel point of the vulcanized qualified sealing strip image pre-stored in the database;

[0105] The vulcanization verification submodule is used to compare the image similarity calculated by the image comparison submodule with a preset similarity threshold. If the image similarity is not less than the similarity threshold, the vulcanization of the corresponding sealing strip is terminated.

[0106] By adopting the above technical scheme, by pre-storing the image of the vulcanized qualified sealing strip in the database, during the vulcanization process, a CCD camera is used to shoot the vulcanized image of the sealing strip in real time, and the image brightness adjustment, image filtering and image enhancement processing are performed on the sealing strip image in sequence, so that the quality of the vulcanized image of the sealing strip is relatively consistent with the quality of the pre-stored qualified vulcanized sealing strip image. Through image recognition and image segmentation, the equipment image and other environmental facility images in the captured image are excluded to obtain the sealing strip image, which provides a good basis for image comparison; then the above algorithm formula is used to calculate the image similarity between the segmented sealing strip image and the pre-stored qualified vulcanized sealing strip image in the database. The higher the similarity, the better the vulcanization quality of the sealing strip. The use of similarity thresholds to measure the vulcanization quality of the sealing strip is beneficial. To improve the vulcanization yield and quality consistency (or quality constancy); this scheme introduces an algorithm as a quantitative evaluation method to avoid adverse human and subjective effects; the scheme can also be used for trial production tests before production to determine the optimal vulcanization time under the same conditions. During the trial production test, the image similarity calculated at each moment is recorded, and the time variation curve of the image similarity is drawn. In the period before vulcanization, the image similarity curve is constantly rising. After reaching a certain vertex (for example, when a=1, it reaches a similarity maximum point close to 1), the image similarity curve will begin to decline if the vulcanization continues. Therefore, the time corresponding to the vertex of the image similarity curve can be determined as the optimal vulcanization time; and then the optimal vulcanization time is used for control in vulcanization production.

[0107] In summary, the intelligent vulcanization control method and system for producing container sealing strips of the present invention shortens the safety time set according to each vulcanization influencing factor according to the time-dependent change of the temperature distribution of the sealing strip and the data of individual vulcanization influencing factors, and then can extend or shorten the vulcanization time according to the performance of the sealing strip, so that the sealing strip can flexibly control the vulcanization time during vulcanization, and can make corresponding adjustments according to the monitored temperature and pressure by real-time monitoring of the temperature and pressure during vulcanization, so as to realize real-time control of the vulcanization parameters of the sealing strip, so that the temperature and pressure of the sealing strip are always in a constant state during the vulcanization process, thereby ensuring that the sealing strip can ultimately ensure that the vulcanization degree of each part reaches the required value, and can ensure that all vulcanization parameters of the sealing strip during the vulcanization process are within the standard value, so that the elasticity, wear resistance and aging resistance of the vulcanized sealing strip are higher.

[0108] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0109] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent vulcanization control method for container sealing strip production, characterized in that: Based on the intelligent vulcanization control system for container sealing strip production, the intelligent vulcanization control system for container sealing strip production includes Data acquisition module, used to monitor the vulcanization temperature and vulcanization pressure of the sealing strip in real time, and record the vulcanization status of the sealing strip; A judgment module is used to judge and analyze the vulcanization temperature, vulcanization pressure and vulcanization state of the sealing strip collected during the vulcanization process to determine whether the vulcanization temperature, vulcanization pressure and vulcanization state are within the standard value range; A control module, used for adjusting the vulcanization parameters exceeding the standard values ​​according to the judgment result of the judgment module, and stopping after adjusting to the standard values, wherein the vulcanization parameters include the vulcanization temperature, the vulcanization pressure and the vulcanization state of the sealing strip; It also includes a vulcanization parameter standard value determination module, which includes: The model building submodule is used to build a deep neural network model, and use the historically stored environmental parameters, vulcanization temperature, vulcanization pressure and vulcanization state to establish a training set, a validation set and a test set. The training set, the validation set and the test set are used in turn to train, adjust and test the deep neural network model. After the training is completed, a parameter standard value prediction model is obtained; the environmental parameters include ambient temperature, ambient humidity and cleanliness; The data preprocessing submodule uses embedded sensors to collect real-time environmental parameters during the rubber vulcanization process and performs median filtering on the real-time environmental parameters; The standard value prediction submodule is used to input the real-time environmental parameters collected in real time and processed by median filtering as input parameters into the parameter standard value prediction model to obtain the standard value of the vulcanization parameter; The control optimization submodule is used to collect product quality data after vulcanization and perform online optimization processing on the parameter standard value prediction model to optimize the control strategy; The intelligent vulcanization control system for container sealing strip production also includes a vulcanization effect verification module, which includes: The image acquisition submodule is used to take the vulcanization image of the sealing strip in real time through a CCD camera during the vulcanization process, and perform image brightness adjustment, image filtering and image enhancement processing on the sealing strip image in sequence to obtain the processed vulcanization image of the sealing strip; The image recognition and segmentation submodule uses image recognition technology to perform sealing strip image recognition on the processed sealing strip vulcanization image, and uses image segmentation technology to perform image segmentation to obtain a segmented sealing strip image; The image comparison submodule is used to compare the segmented sealing strip image with the vulcanized qualified sealing strip image pre-stored in the database. The image similarity is calculated using the following formula: In the above formula, Indicates the image similarity between the segmented sealing strip image and the vulcanized qualified sealing strip image; Indicates the setting constant, take ; Indicates the number of pixel image parameters; Indicates the number of pixels of the segmented sealing strip image; The segmented sealing strip image The pixel Image parameters; Indicates the number of pixels of the vulcanized qualified sealing strip images pre-stored in the database; The first image of the vulcanized qualified sealing strip stored in the database The pixel Image parameters; The vulcanization verification submodule is used to compare the image similarity calculated by the image comparison submodule with a preset similarity threshold. If the image similarity is not less than the similarity threshold, the vulcanization of the corresponding sealing strip is terminated; The intelligent vulcanization control method for container sealing strip production includes the following steps: S1: Calculate the vulcanization time, which includes a safety time set according to the vulcanization influencing factors that affect the vulcanization time, and vulcanize the sealing strip according to the calculated vulcanization time; S2: setting the standard value of the vulcanization parameters of the sealing strip during vulcanization, the vulcanization parameters include the vulcanization state vulcanization parameters, the vulcanization pressure vulcanization parameters and the vulcanization temperature vulcanization parameters of the sealing strip; S3: During the vulcanization process, the vulcanization parameters of the sealing strip are monitored in real time, and it is determined whether the vulcanization state and vulcanization temperature are in the standard state; S4: If it is not within the standard value, adjust and control the vulcanization parameter part that is not within the standard value according to the result of real-time judgment, so that the vulcanization parameter is always kept within the standard value; The calculation of the vulcanization time specifically includes: According to the time-dependent changes in the temperature distribution of the sealing strip and the data of individual vulcanization influencing factors, the safety time set according to each vulcanization influencing factor is shortened, and the vulcanization time is preliminarily determined; During the initially determined vulcanization time, vulcanization test is performed on the sealing strip to observe the changes in the physical, mechanical and other properties of the sealing strip; According to the results of the vulcanization test, the performance of the sealing strip is evaluated, including elasticity, strength and durability; Adjust the vulcanization time according to the results of the vulcanization test and performance evaluation. If the performance of the sealing strip does not meet expectations, continue to extend the vulcanization time. If the performance of the sealing strip reaches expectations ahead of schedule, shorten the vulcanization time. Repeat the vulcanization test and performance evaluation until the optimal vulcanization time is found.

2. The intelligent vulcanization control method for producing container sealing strips according to claim 1, characterized in that: If it is not within the standard value, the vulcanization parameters that are not within the standard value are adjusted and controlled according to the results of real-time judgment, including: When the judgment result is that the vulcanization temperature exceeds the standard value, the vulcanization temperature is adjusted; When the judgment result shows that the vulcanization pressure exceeds the standard value, the vulcanization pressure is adjusted; When the judgment result is that the vulcanization state does not conform to the vulcanization state of the current time period, the flow rate of the sealing strip during vulcanization is adjusted in combination with the vulcanization temperature and the vulcanization pressure.

3. The intelligent vulcanization control method for producing container sealing strips according to claim 2, characterized in that: When the judgment result is that the vulcanization temperature exceeds the standard value, the vulcanization temperature is adjusted, including: When it is judged that the current vulcanization temperature is higher than the standard value of the vulcanization temperature, the electromagnetic heater is controlled to reduce the heating power; When the current vulcanization temperature is judged to be lower than the standard value of the vulcanization temperature, the electromagnetic heater is controlled to increase the heating power. When the temperature is too high or out of control, an alarm is issued. When it is determined that the current vulcanization temperature reaches the standard vulcanization temperature, the electromagnetic heater is controlled to reduce the heating power to keep the temperature stable and constant.

4. The intelligent vulcanization control method for producing container sealing strips according to claim 2, characterized in that: Adjust the flow rate during the vulcanization of the sealing strip, including: If it is determined that the temperature difference between the upper and lower parts of the sealing strip is large, the flow control valve is adjusted to reduce the temperature difference between the upper and lower parts; When the surface of the sealing strip reaches positive vulcanization, adjust the flow control valve to a small value, and control the sealing strip condensation time interval according to the vulcanization temperature and vulcanization pressure in the current time period to reduce the temperature difference between the upper and lower parts of the sealing strip; Until the entire sealing strip reaches the positive vulcanization state, the vulcanization state is adjusted.

5. The intelligent vulcanization control method for producing container sealing strips according to claim 1, characterized in that: The data acquisition module comprises: The temperature acquisition module is used to collect the vulcanization temperature of the sealing strip in different time periods in real time through a temperature measuring sensor, and record the vulcanization state of the sealing strip; The pressure acquisition module is used to collect the sealing strip pressure data of different vulcanization time periods in real time through the pressure sensor, and compare the pressure data with the standard pressure data set for the time period; The vulcanization status collection module is used to collect the status of the sealing strip in different vulcanization time periods in real time and compare the status with the standard status set for the time period.

6. The intelligent vulcanization control method for producing container sealing strips according to claim 5, characterized in that: The temperature sensor is composed of a temperature sensor, a low-power controller, a small battery, an RFIC chip and an antenna. The temperature sensor is connected to the low-power controller, the low-power controller is connected to the RFIC chip, and the RFIC chip is connected to the antenna.

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