Electro-ceramic cake moisture control method and electro-ceramic cake pressing control device

Abstract

The application provides an electric porcelain cake moisture control method and an electric porcelain cake pressing control device. The electric porcelain cake moisture control method comprises the following steps: sending the electric porcelain cake into a mud squeezing machine for pressing; collecting the real-time moisture content and real-time temperature of the electric porcelain cake; correcting the real-time moisture content based on the real-time temperature to obtain the actual moisture content; comparing the actual moisture content with a preset moisture content threshold, and adjusting the working state of the mud squeezing machine according to the comparison result until the actual moisture content is adjusted to be within the preset moisture content threshold, and then stopping the pressing. That is, the electric porcelain cake moisture control method of the application synchronously collects the real-time temperature of the electric porcelain cake and corrects the real-time moisture content based on the real-time temperature to obtain the actual moisture content, so as to completely offset the moisture content detection deviation caused by temperature fluctuation, thereby greatly improving the moisture control accuracy of the electric porcelain cake, realizing the standardized and accurate control of the moisture of the electric porcelain cake, and meeting the actual production requirements.

Description

Technical Field

[0001] This application relates to the field of electrical porcelain raw material preparation technology, and in particular to a method for controlling the moisture content of electrical porcelain slurry cake and an electrical porcelain slurry cake pressing control device. Background Technology

[0002] In the production of high-voltage and ultra-high-voltage electrical porcelain, the uniformity of moisture content in the porcelain slurry directly determines the strength of the blank, sintering density, insulation performance, and finished product qualification rate.

[0003] When pressing porcelain clay cake, existing plate and frame presses typically use a moisture content meter to directly measure the moisture content of the porcelain clay cake. When the measured moisture content is within a preset moisture threshold range, the pressing is considered complete, and the pressing is stopped, thus completing the moisture pressing operation of the porcelain clay cake.

[0004] However, the moisture content of the porcelain clay cake fluctuates due to temperature variations, resulting in low precision in moisture control. Therefore, accurately controlling the moisture content of the porcelain clay cake is a problem that this application urgently needs to solve. Summary of the Invention

[0005] The purpose of this application is to provide a method for controlling the moisture content of electric porcelain clay cake and an electric porcelain clay cake pressing control device, aiming to solve the problem of how to accurately control the moisture content of electric porcelain clay cake.

[0006] In a first aspect, embodiments of this application provide a method for controlling the moisture content of electrical porcelain clay cake, including: The porcelain clay cake is fed into a clay press for pressing. The real-time moisture content and real-time temperature of the electric porcelain clay cake were collected. The actual moisture content is obtained by correcting the real-time moisture content based on the real-time temperature. The actual moisture content is compared with a preset moisture content threshold, and the working state of the sludge press is adjusted according to the comparison result until the actual moisture content is adjusted to within the preset moisture content threshold, at which point the pressing is stopped.

[0007] In some embodiments, the method for correcting the real-time moisture content based on the real-time temperature to obtain the actual moisture content includes: The actual moisture content is calculated based on a preset formula, which is: M 实际 =M 实时 -K(T) 实时 -T 基准 Perform the calculation; Among them, M 实际 M represents the actual moisture content. 实时 For real-time moisture content, T 实时 For real-time temperature, T基准 K is the preset temperature compensation coefficient, used to detect the reference temperature.

[0008] In some embodiments, the method of adjusting the operating state of the sludge press based on comparison results includes: The real-time pressing pressure of the electric porcelain slurry cake is collected in real time; If the actual moisture content is greater than the upper limit of the preset moisture content threshold, then the sludge press is controlled to increase the current pressing pressure and / or extend the holding time; If the actual moisture content is within the range of the preset moisture content threshold, then the sludge press is controlled to maintain the current real-time pressing pressure.

[0009] In some embodiments, a method for obtaining the actual moisture content by collecting the real-time moisture content and real-time temperature of the electric porcelain clay cake and correcting the real-time moisture content based on the real-time temperature includes: Real-time temperature and moisture content at different locations of the electric porcelain clay cake were collected. Based on the real-time temperature at the corresponding location, the corresponding real-time moisture content is corrected to obtain each preliminary moisture content; The actual moisture content is obtained by integrating the preliminary moisture content values.

[0010] In some embodiments, a method for integrating the preliminary moisture content values ​​to obtain the actual moisture content includes: The actual moisture content is obtained by averaging all the aforementioned preliminary moisture content values.

[0011] In some embodiments, a method for integrating the preliminary moisture content values ​​to obtain the actual moisture content includes: The actual moisture content is obtained by taking the average of the weighted values ​​of the preliminary moisture content.

[0012] In some embodiments, the method for controlling the moisture content of the ceramic clay cake further includes, until after the step of adjusting the actual moisture content to within the preset moisture content threshold: The thickness of the electric porcelain clay cake is measured to obtain a thickness value, and the hardness of the electric porcelain clay cake is measured to obtain a hardness value. If the thickness value is within a preset thickness threshold and the hardness value is within a preset hardness threshold, then pressing is stopped.

[0013] In some embodiments, multiple sets of thickness detection values ​​and multiple sets of hardness detection values ​​are continuously detected, and if all the hardness detection values ​​are within a preset thickness threshold range and all the hardness detection values ​​are within a preset hardness threshold range, then the pressing is stopped.

[0014] Secondly, this application also provides an electric porcelain cake pressing control device for performing an electric porcelain cake moisture control method, including a control module and a pressing machine, a moisture content detection element and a temperature detection element electrically connected to the control module. The moisture content detection element is configured to detect the real-time moisture content of the ceramic clay cake; The temperature sensing element is configured to detect the real-time temperature of the ceramic clay cake; The control module is configured to correct the real-time moisture content based on the real-time temperature to obtain the actual moisture content, and adjust the working state of the sludge press according to the comparison result between the actual moisture content and the preset moisture content threshold, until the actual moisture content is within the preset moisture content threshold, then control the sludge press to stop pressing.

[0015] In some embodiments, the electric porcelain sludge cake pressing control device further includes a pressure detection element, a servo drive unit, a human-machine interaction unit, and a data storage unit, all electrically connected to the control module. The pressure detection element is configured to detect the real-time pressing pressure of the sludge press on the electric porcelain sludge cake. The servo drive unit is electrically connected to the sludge press and is used to adjust the real-time pressing pressure and / or holding time of the sludge press under the control of the control module. The human-computer interaction unit is configured to allow users to input pressing parameters, which include at least a preset moisture content threshold and a preset number of detections. The data storage unit is configured to store pressing data, which includes at least the real-time moisture content, the real-time temperature, and the actual moisture content.

[0016] The beneficial effects of this invention are: This application provides a method for controlling the moisture content of porcelain clay cake and a pressing control device for porcelain clay cake. The method includes: feeding the porcelain clay cake into a pressing machine for pressing; collecting the real-time moisture content and real-time temperature of the porcelain clay cake; correcting the real-time moisture content based on the real-time temperature to obtain the actual moisture content; comparing the actual moisture content with a preset moisture content threshold, and adjusting the working state of the pressing machine according to the comparison result until the actual moisture content is adjusted to within the preset moisture content threshold, at which point pressing stops. In other words, this method for controlling the moisture content of porcelain clay cake simultaneously collects the real-time temperature and real-time moisture content of the porcelain clay cake, and corrects the real-time moisture content based on the real-time temperature to obtain the actual moisture content. This completely offsets the moisture content detection deviation caused by temperature fluctuations, ensuring that the actual moisture content of the pressed porcelain clay cake is accurately within the preset moisture content threshold. This significantly improves the accuracy of moisture control for porcelain clay cake, achieving standardized and precise moisture control to meet actual production needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the method flow for controlling the moisture content of electrical porcelain clay cake as shown in the embodiments of this application; Figure 2 This is a schematic diagram of the circuit structure of the electric porcelain clay cake pressing control device shown in the embodiment of this application.

[0019] Figure label: 100. Control module; 200. Sludge press; 300. Moisture content detection element; 400. Temperature detection element; 500. Pressure detection element; 600. Servo drive unit; 700. Human-machine interaction unit; 800. Data storage unit. Detailed Implementation

[0020] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0021] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0022] Reference Figure 1 As shown in the figure, this application provides a method for controlling the moisture content of electrical porcelain clay cake, including: S1. Feed the electric porcelain mud cake into the mud press for pressing; S2. Collect the real-time moisture content and real-time temperature of the electric porcelain slurry cake; S3. Correct the real-time moisture content based on the real-time temperature to obtain the actual moisture content; S4. Compare the actual moisture content with the preset moisture content threshold, and adjust the working state of the sludge press according to the comparison result until the actual moisture content is adjusted to within the preset moisture content threshold, then stop pressing.

[0023] In practice, step S1 is the pressing process of the porcelain clay cake. Specifically, the formed porcelain clay cake is fed into a clay press for pressing, which is the basic process for dehydrating the porcelain clay cake.

[0024] Because high-voltage and ultra-high-voltage electrical porcelain products have extremely high requirements for the purity, density, and moisture content of the raw clay, unpressed clay cakes have high moisture content and disordered moisture distribution, which cannot meet the requirements of subsequent molding and sintering processes. Therefore, step S1 uses the mechanical squeezing action of a clay press to quickly remove the free water inside the electrical porcelain clay cake, achieving preliminary dehydration of the electrical porcelain clay cake.

[0025] In traditional production, workers only obtain the moisture content data of the clay cake using a moisture content meter, completely ignoring the interference of temperature on the measured values. However, in actual pressing conditions, mechanical extrusion, ambient temperature fluctuations, and internal moisture friction in the clay cake all cause real-time changes in the clay cake temperature. For the same ceramic clay cake with the same moisture content, the measured data output by the moisture content meter will show significant deviations at different temperatures. Excessively high or low temperatures will cause the moisture content test results to be either too high or too low.

[0026] Therefore, in this embodiment, step S2 provides core data support for subsequent data correction and error elimination by synchronously collecting real-time moisture content and real-time temperature.

[0027] Furthermore, it should be noted that traditional processes directly use the uncorrected original moisture content test results as the basis for judging when to stop pressing. The detection error caused by temperature fluctuations will directly lead to the distortion of moisture control: if the detected moisture content is too low, pressing will be stopped in advance, and the actual moisture content of the mud cake will be too high; if the detected moisture content is too high, over-pressing will occur, and the moisture content of the mud cake will be too low and the structure will be damaged.

[0028] Therefore, in this embodiment, step S3 accurately corrects the initial real-time moisture content by collecting the real-time temperature, eliminates the detection error caused by temperature fluctuations, and finally obtains the actual moisture content that matches the true moisture content of the electric porcelain clay cake, thereby eliminating temperature interference from the data source and ensuring the authenticity and accuracy of the moisture detection data.

[0029] In step S4, the actual moisture content obtained after correction is compared with the preset moisture content threshold in real time. Based on the comparison results, the pressing pressure, pressing time, pressing rate and other working states of the sludge press are dynamically adjusted to form a closed-loop precise control, so that the actual moisture content is within the range of the preset moisture content threshold, thereby achieving precise moisture content control of the electric porcelain sludge cake, and ultimately ensuring that the moisture content of the electric porcelain sludge cake after pressing is stopped can meet the actual production requirements.

[0030] For example, the preset moisture content threshold can be in the range of 18.5%-19.5%, and the target moisture content of the porcelain clay cake can be set to 19%. After testing, the final moisture content control accuracy of the porcelain clay cake after being treated by the moisture control method of this embodiment is less than or equal to ±0.5%.

[0031] In summary, the method for controlling the moisture content of porcelain clay cake in this embodiment obtains the actual moisture content by synchronously collecting the real-time temperature of the porcelain clay cake and correcting the real-time moisture content based on the real-time temperature. This completely offsets the moisture content detection deviation caused by temperature fluctuations, ensuring that the actual moisture content of the porcelain clay cake is accurately within the preset moisture content threshold. As a result, the accuracy of moisture control of the porcelain clay cake is greatly improved, achieving standardized and precise control of the moisture content of the porcelain clay cake to meet actual production needs.

[0032] In some embodiments, the method for obtaining the actual moisture content by correcting the real-time moisture content based on the real-time temperature includes: The actual moisture content is calculated based on a preset formula, which is: M 实际 =M 实时 -K(T) 实时 -T 基准 ) is used for calculation; where M 实际 M represents the actual moisture content. 实时 For real-time moisture content, T 实时 For real-time temperature, T 基准 K is the preset temperature compensation coefficient, used to detect the reference temperature.

[0033] In practice, using the reference temperature as a standard, when the real-time temperature of the porcelain clay cake deviates from the reference temperature, a preset temperature compensation coefficient quantifies the moisture content detection error caused by the temperature deviation, and corrects the original real-time moisture content in either a positive or negative direction. Specifically, when the real-time temperature is higher than the reference temperature, it offsets the falsely high moisture content detection error caused by high temperature; when the real-time temperature is lower than the reference temperature, it compensates for the falsely low moisture content detection error caused by low temperature, ultimately obtaining the actual moisture content that closely reflects the true state of the porcelain clay cake.

[0034] For example, the reference temperature for detection is the factory reference temperature of the instrument for detecting moisture content, which is usually 25°C. The preset temperature compensation coefficient is the temperature compensation coefficient obtained by fitting multiple sets of temperature tests on the electric porcelain clay cake in this embodiment, for example, it can be 0.04, 0.045 or 0.035.

[0035] In some embodiments, a method for adjusting the operating state of a sludge press based on comparison results includes: Real-time data acquisition of the pressing pressure of the electric porcelain slurry cake; If the actual moisture content is greater than the upper limit of the preset moisture content threshold, the sludge press will be controlled to increase the current pressing pressure and / or extend the holding time. If the actual moisture content is within the preset moisture content threshold range, the sludge press will be controlled to maintain the current real-time pressing pressure.

[0036] In specific operation, when the actual moisture content is greater than the upper limit of the preset moisture content threshold, it indicates that the moisture content of the electric porcelain mud cake is too high and the dehydration is insufficient. At this time, the press can be controlled to perform a dehydration enhancement operation. Depending on the degree of moisture excess, the current pressing pressure can be increased individually, the holding time can be extended individually, or the pressure and holding time can be increased simultaneously to accelerate the precipitation of free water inside the electric porcelain mud cake.

[0037] When the actual moisture content is stable within the preset moisture content threshold range, it means that the moisture content of the electric porcelain mud cake meets the standard. There is no need to continue to strengthen dehydration. Control the mud press to keep the current pressing pressure constant and maintain a stable pressure state to avoid pressure fluctuations that could damage the structure of the electric porcelain mud cake.

[0038] In some embodiments, the method of collecting the real-time moisture content and real-time temperature of the electric porcelain slurry, and correcting the real-time moisture content based on the real-time temperature to obtain the actual moisture content includes: Real-time temperature and moisture content were collected at different locations on the electric porcelain clay cake. The initial moisture content is obtained by correcting the real-time moisture content based on the real-time temperature at the corresponding location. The actual moisture content is obtained by integrating the preliminary moisture content values.

[0039] In this embodiment, considering the uneven stress and heat dissipation rate at different locations such as the edge, center, and upper and lower surfaces of the electric porcelain mud cake during the pressing process of the mud press, resulting in uneven temperature and moisture distribution, this embodiment adopts a multi-point sampling and correction method to make the final actual moisture content closer to the true moisture content.

[0040] The specific operation process is as follows: During the testing process, instead of collecting real-time temperature and moisture content data at a single point on the porcelain clay cake, real-time temperature and moisture content are collected at different locations on the porcelain clay cake. For each collection point, the real-time temperature is used to independently compensate and correct the real-time moisture content at that point, resulting in a preliminary moisture content value for each point. Finally, the preliminary moisture content values ​​from all points are integrated to obtain the actual moisture content value that represents the overall moisture state of the porcelain clay cake.

[0041] In other words, this embodiment comprehensively covers the working condition differences of different areas of the electric porcelain clay cake by collecting data at multiple points and correcting it at different points. It eliminates the sampling deviation caused by single-point detection, accurately captures local moisture and temperature anomalies in the electric porcelain clay cake, and ensures that the final actual moisture content can truly reflect the overall moisture state of the entire electric porcelain clay cake. From the detection level, it ensures the overall moisture uniformity of the electric porcelain clay cake and avoids production quality risks caused by excessive local moisture.

[0042] In some embodiments, a method for integrating preliminary moisture content values ​​to obtain the actual moisture content includes: The actual moisture content is obtained by averaging all the preliminary moisture content values.

[0043] In specific operations, one integrated processing method is as follows: after obtaining the preliminary moisture content values ​​of multiple locations on the electric porcelain mud cake, the arithmetic mean of the preliminary moisture content values ​​of all points is directly calculated, and this average value is used as the final actual moisture content, providing a basis for judging the start-up and shutdown of the mud press and parameter adjustment.

[0044] In other words, by calculating the average of multiple points, the random errors of individual point detection can be effectively offset, and the abnormal data interference caused by data fluctuations at local points can be avoided, further improving the stability and accuracy of the actual moisture content detection results. At the same time, the arithmetic mean algorithm has low computational load and fast response speed, which is suitable for the needs of real-time dynamic control in the pressing process. It does not produce data processing delays, ensuring the real-time performance of pressing control, and balancing detection accuracy and control efficiency. It is suitable for the production of electric porcelain clay cakes of conventional specifications with small differences in moisture distribution.

[0045] In some embodiments, a method for integrating preliminary moisture content values ​​to obtain the actual moisture content includes: The actual moisture content is obtained by taking the average of the weighted values ​​of each preliminary moisture content.

[0046] In practice, another integrated processing method is as follows: based on the structural importance, dehydration difficulty, and quality impact weight of different locations in the electric porcelain clay cake, assign corresponding weighting coefficients to the preliminary moisture content values ​​of each location; multiply the preliminary moisture content values ​​of each location by their corresponding weights and sum them, then calculate the average value, and finally obtain the weighted average value as the actual moisture content.

[0047] Specifically, based on production experience and process calibration, higher weights can be assigned to the core stress-bearing area and thicker areas of the electric porcelain clay cake, while lower weights can be assigned to the secondary peripheral areas, aligning with the actual production characteristics of the electric porcelain clay cake. The specific weighting coefficients can be set according to actual needs, with the sum of all coefficients being 1.

[0048] In some embodiments, the method for controlling the moisture content of the ceramic clay cake further includes, until the actual moisture content is adjusted to within a preset moisture content threshold: The thickness of the electric porcelain clay cake is measured to obtain the thickness value, and the hardness of the electric porcelain clay cake is measured to obtain the hardness value. If the thickness value is within the preset thickness threshold and the hardness value is within the preset hardness threshold, the pressing is stopped.

[0049] In practice, the moisture content test results only reflect the degree of dehydration of the porcelain clay cake and cannot fully reflect the forming quality and structural stability of the porcelain clay cake. In actual production, if the porcelain clay cake that meets the moisture content test has hidden quality problems such as uneven thickness, loose body, and insufficient hardness, it will also affect the final production quality.

[0050] Therefore, when the actual moisture content reaches the preset moisture content threshold, this embodiment continues to simultaneously detect the hardness and thickness of the porcelain clay cake to obtain the thickness and hardness detection values, respectively. The thickness detection value is compared with the preset thickness threshold, and the hardness detection value is compared with the preset hardness threshold. Only when the thickness detection value and hardness detection value of the porcelain clay cake are both within the preset thickness threshold and the hardness detection value is within the preset hardness threshold, is the porcelain clay cake deemed to be qualified for pressing, and the pressing operation is stopped.

[0051] In some embodiments, multiple sets of thickness detection values ​​and multiple sets of hardness detection values ​​are continuously detected, and if all hardness detection values ​​are within a preset thickness threshold range and all hardness detection values ​​are within a preset hardness threshold range, then the pressing is stopped.

[0052] In practice, multiple sets of thickness and hardness values ​​of the electric porcelain clay cake are continuously collected. Only when all sets of thickness values ​​are within the preset thickness threshold and all sets of hardness values ​​are within the preset hardness threshold can the electric porcelain clay cake be finally confirmed as qualified and the pressing operation be stopped. If any set of data does not meet the standard, the parameters of the press are continuously fine-tuned for pressure supplementation and stabilization until all continuous sampling data meet the standard. Then the pressing can be stopped, thus avoiding possible misjudgments from a single moisture content test.

[0053] For example, the number of tests can be five, six, or seven.

[0054] Reference Figure 2As shown in the embodiment of this application, an electric porcelain cake pressing control device for performing an electric porcelain cake moisture control method is also provided, including a control module 100 and a pressing machine 200, a moisture content detection element 300 and a temperature detection element 400 electrically connected to the control module 100.

[0055] The moisture content detection element 300 is configured to detect the real-time moisture content of the electric porcelain clay cake; the temperature detection element 400 is configured to detect the real-time temperature of the electric porcelain clay cake; the control module 100 is configured to correct the real-time moisture content based on the real-time temperature to obtain the actual moisture content, and adjust the working state of the sludge press 200 according to the comparison result between the actual moisture content and the preset moisture content threshold until the actual moisture content is within the preset moisture content threshold, then control the sludge press 200 to stop pressing.

[0056] The specific process of the method for controlling the moisture content of the porcelain clay cake in this embodiment is the same as that of the method for controlling the moisture content of the porcelain clay cake provided in the above embodiment, and can bring the same or similar technical effects. It will not be described in detail here, but can be referred to the description of the above embodiment.

[0057] Specifically, the sludge press 200 is the actuator that performs pressing and dehydration, and is used to complete the entire process of feeding, pressing, holding pressure and stopping the electric porcelain sludge cake under the control of the control module 100.

[0058] The moisture content detection element 300 is closely attached to the porcelain clay cake, collecting the real-time moisture content of the porcelain clay cake throughout the pressing process and transmitting the detection results to the control module 100 in real time. The temperature detection element 400 is arranged synchronously with the moisture content detection element 300, closely attached to the surface of the porcelain clay cake, and synchronously collecting the real-time temperature of the porcelain clay cake and uploading it to the control module 100.

[0059] The control module 100 incorporates the aforementioned temperature compensation correction algorithm and threshold comparison logic to ensure that the final actual moisture content is within the preset moisture content threshold. The specific control process is as follows: First, it receives real-time moisture content and real-time temperature data uploaded by the moisture content detection element 300 and the temperature detection element 400.

[0060] Then, the real-time moisture content is corrected for temperature using a compensation formula to calculate the actual moisture content.

[0061] Next, the actual moisture content is compared with the internal preset moisture content threshold. Based on the comparison result, a control command is output to adjust the operating conditions of the sludge press 200. Finally, when the actual moisture content stabilizes within the preset moisture content threshold range, a stop command is issued to control the sludge press 200 to terminate the pressing process.

[0062] In some embodiments, the electric porcelain slurry pressing control device further includes a pressure detection element 500, a servo drive unit 600, a human-machine interaction unit 700, and a data storage unit 800, all of which are electrically connected to the control module 100.

[0063] The pressure detection element 500 is configured to detect the real-time pressing pressure of the sludge press 200 on the ceramic clay cake. The servo drive unit 600 is electrically connected to the sludge press 200 and is used to adjust the real-time pressing pressure and / or holding time of the sludge press 200 under the control of the control module 100. The human-machine interface unit 700 is configured to allow the user to input sludge pressing parameters, which include at least a preset moisture content threshold and a preset number of tests. The data storage unit 800 is configured to store pressing data, which includes at least real-time moisture content, real-time temperature, and actual moisture content.

[0064] In practice, the pressure detection element 500 is electrically connected to the control module 100 to collect the real-time pressing pressure applied by the sludge press 200 to the electric porcelain mud cake and feed it back to the control module 100 as an auxiliary judgment parameter for regulating the sludge press 200.

[0065] The control module 100 combines the real-time pressing pressure and the corrected actual moisture content to jointly determine and calculate the required pressure increase and holding time. Specifically, when the actual moisture content is greater than the preset upper limit of moisture content, the control module 100 controls the servo drive unit 600 to drive the sludge press 200 to increase the pressing pressure, or extend the hydraulic holding time, or simultaneously increase the pressure and extend the holding time.

[0066] When the actual moisture content falls within the preset moisture content threshold range, the control module 100 controls the servo drive unit 600 to lock the current output pressure and maintain stable pressure; after the pressing meets the standard, it receives a shutdown command and drives the sludge press 200 to release pressure and stop.

[0067] The machine interaction unit can be a touch screen or operation panel, used for electrical connection with the control module 100, and provides operators with access to read and write parameters. For example, operators can manually enter various sludge pressing process parameters, including at least preset moisture content thresholds, number of consecutive tests, detection temperature reference, temperature compensation coefficient, preset thickness threshold, and preset hardness threshold.

[0068] The data storage unit 800 has a built-in storage chip or an external hard drive, and communicates with the control module 100. It automatically archives and stores all pressing data throughout the process. The pressing data includes at least real-time moisture content, real-time temperature, and the actual moisture content after temperature correction. In addition, the stored data can be retrieved locally, exported, and uploaded to a host computer, and is stored long-term without loss.

[0069] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0070] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A method for controlling the moisture content of electrical porcelain clay cake, characterized in that, include: The porcelain clay cake is fed into a clay press for pressing. The real-time moisture content and real-time temperature of the electric porcelain clay cake were collected. The actual moisture content is obtained by correcting the real-time moisture content based on the real-time temperature. The actual moisture content is compared with a preset moisture content threshold, and the working state of the sludge press is adjusted according to the comparison result until the actual moisture content is adjusted to within the preset moisture content threshold, at which point the pressing is stopped.

2. The method for controlling the moisture content of electrical porcelain clay cake according to claim 1, characterized in that, The method for obtaining the actual moisture content by correcting the real-time moisture content based on the real-time temperature includes: The actual moisture content is calculated based on a preset formula, which is: M 实际 =M 实时 -K(T) 实时 -T 基准 Perform the calculation; Among them, M 实际 M represents the actual moisture content. 实时 For real-time moisture content, T 实时 For real-time temperature, T 基准 K is the preset temperature compensation coefficient, used to detect the reference temperature.

3. The method for controlling the moisture content of electrical porcelain clay cake according to claim 1, characterized in that, The method for adjusting the working state of the sludge press based on the comparison results includes: The real-time pressing pressure of the electric porcelain slurry cake is collected in real time; If the actual moisture content is greater than the upper limit of the preset moisture content threshold, then the sludge press is controlled to increase the current pressing pressure and / or extend the holding time; If the actual moisture content is within the range of the preset moisture content threshold, then the sludge press is controlled to maintain the current real-time pressing pressure.

4. The method for controlling the moisture content of electrical porcelain clay cake according to claim 1, characterized in that, The method for obtaining the actual moisture content by collecting the real-time moisture content and real-time temperature of the electric porcelain clay cake and correcting the real-time moisture content based on the real-time temperature includes: Real-time temperature and moisture content at different locations of the electric porcelain clay cake were collected. Based on the real-time temperature at the corresponding location, the corresponding real-time moisture content is corrected to obtain each preliminary moisture content; The actual moisture content is obtained by integrating the preliminary moisture content values.

5. The method for controlling the moisture content of electrical porcelain clay cake according to claim 4, characterized in that, The method for integrating the preliminary moisture content values ​​to obtain the actual moisture content includes: The actual moisture content is obtained by averaging all the aforementioned preliminary moisture content values.

6. The method for controlling the moisture content of electrical porcelain clay cake according to claim 4, characterized in that, The method for integrating the preliminary moisture content values ​​to obtain the actual moisture content includes: The actual moisture content is obtained by taking the average of the weighted values ​​of the preliminary moisture content.

7. The method for controlling the moisture content of electrical porcelain clay cake according to claim 1, characterized in that, After the step of adjusting the actual moisture content to within the preset moisture content threshold, the method for controlling the moisture content of the ceramic clay cake further includes: The thickness of the electric porcelain clay cake is measured to obtain a thickness value, and the hardness of the electric porcelain clay cake is measured to obtain a hardness value. If the thickness value is within a preset thickness threshold and the hardness value is within a preset hardness threshold, then pressing is stopped.

8. The method for controlling the moisture content of electrical porcelain clay cake according to claim 7, characterized in that, If multiple sets of thickness and hardness values ​​are continuously detected, and all the hardness values ​​are within the preset thickness threshold range and all the hardness values ​​are within the preset hardness threshold range, then the pressing is stopped.

9. An electric porcelain cake pressing control device for performing the method for controlling the moisture content of electric porcelain cake as described in any one of claims 1 to 8, characterized in that, It includes a control module, a sludge press, a moisture content detection element, and a temperature detection element that are electrically connected to the control module; The moisture content detection element is configured to detect the real-time moisture content of the ceramic clay cake; The temperature sensing element is configured to detect the real-time temperature of the ceramic clay cake; The control module is configured to correct the real-time moisture content based on the real-time temperature to obtain the actual moisture content, and adjust the working state of the sludge press according to the comparison result between the actual moisture content and the preset moisture content threshold, until the actual moisture content is within the preset moisture content threshold, then control the sludge press to stop pressing.

10. The electric porcelain slurry pressing control device according to claim 9, characterized in that, The electric porcelain mud cake pressing control device also includes a pressure detection element, a servo drive unit, a human-machine interaction unit, and a data storage unit, all of which are electrically connected to the control module. The pressure detection element is configured to detect the real-time pressing pressure of the sludge press on the electric porcelain sludge cake. The servo drive unit is electrically connected to the sludge press and is used to adjust the real-time pressing pressure and / or holding time of the sludge press under the control of the control module. The human-computer interaction unit is configured to allow users to input pressing parameters, which include at least a preset moisture content threshold and a preset number of tests. The data storage unit is configured to store pressing data, which includes at least the real-time moisture content, the real-time temperature, and the actual moisture content.

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