Self-adaptive adjustment method and system for artificial leather production equipment

Abstract

The invention relates to the technical field of leather production, and provides an adaptive adjustment method and system for artificial leather production equipment, comprising: collecting and obtaining temperature distribution data and humidity distribution data, and setting an artificial leather manufacturing process information axis; extracting a quality inspection feedback database, and determining feedback control coordinate points; classifying and aggregating the feedback control coordinate points according to the artificial leather manufacturing process information axis, and obtaining n classified aggregated feedback control coordinate centers; before a calendering process, obtaining thickness requirement information of the artificial leather, and initializing a four-roll calender; and adaptively adjusting the n classified aggregated feedback control coordinate centers as key control nodes, so as to solve the technical problem that the equipment cannot adapt to changes and uncertainties in operation status, resulting in poor adjustment performance, thereby improving the control performance of the artificial leather production equipment, reducing operation complexity, adapting to changes and uncertainties in operation status of the equipment, and improving production efficiency and quality technical effects.

Description

Technical Field

[0001] The invention relates to the technical field related to leather production, and in particular to a self-adaptive adjustment method and system for artificial leather production equipment. Background Art

[0002] Artificial leather production equipment adjustment methods usually rely on fixed process parameters, which may not be suitable for different production conditions or raw materials, and may lead to unstable product quality or waste of resources. Alternatively, parameter adjustments are made according to a fixed schedule, such as PID (proportional-integral-differential) controllers, which use predefined rules and parameters to automatically adjust equipment to maintain certain production conditions without considering changes in the actual production process, which may lead to over-adjustment or under-adjustment, affecting product quality and efficiency.

[0003] In general, the adjustment methods of artificial leather production equipment are usually simple and limited, relying on fixed parameter settings, and therefore have certain limitations in achieving high quality, high efficiency and resource utilization efficiency.

[0004] In summary, the prior art has the technical problem of being unable to adapt to changes and uncertainties in the operating state of the equipment, resulting in poor regulation performance. Summary of the invention

[0005] The present application provides an adaptive adjustment method and system for artificial leather production equipment, aiming to solve the technical problem in the prior art that the equipment cannot adapt to changes and uncertainties in the operating state, resulting in poor adjustment performance.

[0006] In view of the above problems, the present application provides an adaptive adjustment method and system for artificial leather production equipment.

[0007] The first aspect disclosed in the present application provides an adaptive adjustment method for artificial leather production equipment, wherein the method includes: collecting temperature and humidity data in an artificial leather manufacturing workshop to obtain temperature distribution data and humidity distribution data, wherein the temperature distribution data and humidity distribution data both have position coordinate marks; setting an artificial leather manufacturing process information axis according to the artificial leather manufacturing process and the temperature distribution data and humidity distribution data, wherein the artificial leather manufacturing process information axis includes at least an ingredient mixing process information node, a plasticizing process information node, a calendering process information node, a preheating process information node, an embossing process information node, and a cooling process information node; connecting to an artificial leather quality inspection system to extract a quality inspection feedback database, wherein the artificial leather quality inspection feedback The feedback database includes artificial leather surface defect data packets and artificial leather thickness defect data packets; according to the quality inspection feedback database, the feedback control coordinate points of artificial leather manufacturing are determined, wherein the feedback control coordinate points include m artificial leather manufacturing process parameters; according to the artificial leather manufacturing process information axis, the feedback control coordinate points of artificial leather manufacturing are classified and aggregated to obtain n classified aggregated feedback control coordinate centers; before the calendering process, the thickness requirement information of the artificial leather is obtained, and the thickness requirement information includes standard thickness data, thickness deviation upper limit, and thickness deviation lower limit; after the initialization setting of the four-roll calender is completed using the thickness requirement information, the n classified aggregated feedback control coordinate centers are used as key control nodes for adaptive adjustment.

[0008] Another aspect disclosed in the present application provides an adaptive adjustment system for artificial leather production equipment, wherein the system includes: a data collection module, which is used to collect temperature and humidity data in an artificial leather manufacturing workshop to obtain temperature distribution data and humidity distribution data, and the temperature distribution data and humidity distribution data both have position coordinate marks; a process information axis setting module, which is used to set an artificial leather manufacturing process information axis according to the artificial leather manufacturing process and the temperature distribution data and humidity distribution data, and the artificial leather manufacturing process information axis at least includes an ingredient mixing process information node, a plasticizing process information node, a calendering process information node, a preheating process information node, an embossing process information node, and a cooling process information node; a feedback data extraction module, which is used to connect to an artificial leather quality inspection system and extract a quality inspection feedback database, and the artificial leather quality inspection feedback database It includes an artificial leather surface defect data packet and an artificial leather thickness defect data packet; a feedback control module, which is used to determine the feedback control coordinate points of artificial leather manufacturing according to the quality inspection feedback database, wherein the feedback control coordinate points include m artificial leather manufacturing process parameters; a classification aggregation module, which is used to classify and aggregate the feedback control coordinate points of artificial leather manufacturing according to the artificial leather manufacturing process information axis, and obtain n classified aggregated feedback control coordinate centers; a thickness requirement acquisition module, which is used to obtain the thickness requirement information of artificial leather before the calendering process, wherein the thickness requirement information includes standard thickness data, thickness deviation upper limit, and thickness deviation lower limit; an adaptive adjustment module, which is used to use the thickness requirement information to complete the initialization setting of the four-roll calender, and then use the n classified aggregated feedback control coordinate centers as key control nodes for adaptive adjustment.

[0009] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0010] The temperature and humidity data are collected in the artificial leather manufacturing workshop to obtain temperature distribution data and humidity distribution data, and set the artificial leather manufacturing process information axis; the artificial leather quality inspection system is connected to extract the quality inspection feedback database, and the feedback control coordinate points of artificial leather manufacturing are determined; according to the artificial leather manufacturing process information axis, the feedback control coordinate points of artificial leather manufacturing are classified and aggregated to obtain n classified aggregated feedback control coordinate centers; before the calendering process, the thickness requirement information of the artificial leather is obtained, and the four-roll calender is initialized; the n classified aggregated feedback control coordinate centers are used as key control nodes for adaptive adjustment, thereby achieving the technical effect of improving the control performance of artificial leather production equipment, reducing operation complexity, adapting to changes and uncertainties in equipment operation status, and improving production efficiency and quality.

[0011] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A possible flow chart of an adaptive adjustment method for artificial leather production equipment is provided for the embodiment of the present application;

[0013] Figure 2 A schematic diagram of a possible flow chart of adaptive adjustment judgment and execution in an adaptive adjustment method for artificial leather production equipment is provided for an embodiment of the present application;

[0014] Figure 3 A possible structural schematic diagram of an adaptive adjustment system of artificial leather production equipment is provided for the embodiment of the present application.

[0015] Explanation of reference numerals: data collection module 100 , process information axis setting module 200 , feedback data extraction module 300 , feedback control module 400 , classification aggregation module 500 , thickness requirement acquisition module 600 , adaptive adjustment module 700 . DETAILED DESCRIPTION

[0016] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0017] Embodiment 1

[0018] like Figure 1 As shown, the embodiment of the present application provides an adaptive adjustment method for artificial leather production equipment, wherein the method comprises:

[0019] Step-1: Collect temperature and humidity data in the artificial leather manufacturing workshop to obtain temperature distribution data and humidity distribution data, both of which are marked with position coordinates;

[0020] Step-2: according to the artificial leather manufacturing process and the temperature distribution data and the humidity distribution data, an artificial leather manufacturing process information axis is set, wherein the artificial leather manufacturing process information axis at least includes a batching and mixing process information node, a plasticating process information node, a calendering process information node, a preheating process information node, an embossing process information node, and a cooling process information node;

[0021] In the embodiment of the present application, it is known that in the artificial leather manufacturing workshop, the resin, plasticizer and other compounding agents are measured according to the formula requirements, put into the kneading machine for uniform mixing, and then plasticized by the internal mixer or extruder, and then sent to the four-roll calender to be calendered into a film of the required thickness and width, and laminated with the pre-heated base cloth, and then embossed and cooled to obtain the finished product;

[0022] The temperature and humidity data collection is to collect temperature and humidity related data in the artificial leather manufacturing workshop. The temperature and humidity data involve the marking of different position coordinates, which means that the temperature and humidity values ​​of different positions are recorded. The artificial leather manufacturing process information axis is used to represent the process of artificial leather manufacturing. The artificial leather manufacturing process information axis includes different process information nodes, each of which represents a stage or step in the manufacturing process.

[0023] The ingredient mixing process information node refers to the stage of mixing raw materials to prepare the formula required for manufacturing artificial leather. The plasticating process information node refers to the stage of heating and treating the mixed raw materials to form a substance that can be used to manufacture artificial leather. The calendering process information node refers to the stage of processing and compressing the already processed materials through a four-roll calender to obtain the desired thickness and texture. The preheating process information node refers to the stage of preheating the material before calendering to make it easier to handle and compress. The embossing process information node refers to the stage of processing the pattern or texture of the manufactured material. The cooling process information node refers to the stage of cooling the manufactured artificial leather material to make it solidified and stable.

[0024] By collecting temperature and humidity data and adjusting and optimizing the artificial leather manufacturing process based on this data, higher quality products, improved production efficiency and consistency, and the effect of meeting customer needs can be achieved. By monitoring and controlling temperature and humidity, it is possible to ensure that the conditions during the manufacturing process are optimal, thereby improving product quality and production efficiency. In addition, using information axes to manage process information nodes can help workshops organize and optimize manufacturing processes more effectively, improving production efficiency and consistency.

[0025] Step-3: Connecting to the artificial leather quality inspection system and extracting the quality inspection feedback database, wherein the artificial leather quality inspection feedback database includes an artificial leather surface defect data packet and an artificial leather thickness defect data packet;

[0026] Step-4: Determine feedback control coordinate points for artificial leather manufacturing according to the quality inspection feedback database, wherein the feedback control coordinate points include m artificial leather manufacturing process parameters;

[0027] Step-5: Classify and aggregate the feedback control coordinate points of artificial leather manufacturing according to the artificial leather manufacturing process information axis to obtain n classified and aggregated feedback control coordinate centers;

[0028] The artificial leather quality inspection system is a system used to inspect the quality of artificial leather products, and various sensors and technologies can be used to detect problems such as surface defects and thickness defects. The quality inspection feedback database is a database that contains data collected from the artificial leather quality inspection system, including information on artificial leather surface defects and thickness defects. The feedback control coordinate points are specific data points determined from the quality inspection feedback database, representing different parameters and conditions in the artificial leather manufacturing process. The artificial leather manufacturing process parameters are various parameters used to control the artificial leather manufacturing process, such as temperature, pressure, speed, etc. The artificial leather manufacturing process information axis is used to manage process parameters and manufacturing information in order to better organize and optimize the manufacturing process.

[0029] Classification and aggregation of feedback control coordinate centers means classifying and aggregating feedback control coordinate points to obtain center points or key points, which helps to identify and manage key parameters in the manufacturing process. The specific explanation is as follows: the feedback control coordinates refer to data points obtained from the actual manufacturing process, including various process information recorded at different manufacturing stages, which are used to feedback the actual situation of the manufacturing process; the feedback control coordinates are classified and integrated according to similar process information or manufacturing stages; the feedback control coordinate points are classified according to similarity using a clustering algorithm (such as K-means clustering) to form several clusters; for each cluster, its cluster center, i.e., the characteristic point of the category, is calculated; after classification and aggregation, n cluster centers will be obtained, and the cluster center is defined as the classification and aggregation feedback control coordinate center.

[0030] Overall, this approach allows for better control of the artificial leather manufacturing process, improved product quality, fewer defects, and potentially greater production efficiency. This approach can dynamically adjust manufacturing parameters based on quality inspection feedback to ensure that the product maintains a consistent high quality level throughout the production process.

[0031] Step-6: Before the calendering process, obtain the thickness requirement information of the artificial leather, wherein the thickness requirement information includes standard thickness data, thickness deviation upper limit, and thickness deviation lower limit;

[0032] Step-7: After completing the initialization setting of the four-roll calender using the thickness requirement information, the n classified aggregation feedback control coordinate centers are used as key control nodes for adaptive adjustment.

[0033] In order to better control the manufacturing process of artificial leather to improve product quality, reduce defects, and possibly improve production efficiency, the following steps are included: Obtain thickness requirement information: Before the calendering process, it is necessary to obtain the thickness requirement information of the artificial leather, which includes two aspects: the upper limit of the thickness deviation threshold (the maximum allowable thickness deviation) and the lower limit of the thickness deviation threshold (the minimum allowable thickness deviation); Use the obtained thickness requirement information to initialize the four-roll calender to meet these thickness requirements.

[0034] During the manufacturing process, data on the thickness of artificial leather is collected, classified and aggregated to obtain a center point or key point, which means that the collected thickness data is sorted and counted to obtain a key value representing the current manufacturing situation.

[0035] The control coordinate center obtained from the aggregated feedback of n categories is used as the key control node to dynamically adjust the manufacturing parameters. In simple terms, the manufacturing process is adjusted according to the real-time thickness data of artificial leather to ensure that the product maintains a consistent high quality level throughout the entire production process.

[0036] In general, the aim is to ensure product quality by dynamically adjusting manufacturing parameters, thereby better controlling the artificial leather manufacturing process and improving the quality of artificial leather products.

[0037] The feedback control coordinate points include m artificial leather manufacturing process parameters, and Step-4 also includes:

[0038] In the process of artificial leather manufacturing, collecting artificial leather manufacturing process parameters in real time, wherein the artificial leather manufacturing process parameters at least include artificial leather thickness, artificial leather tensile strength, and artificial leather color;

[0039] The calendering process is monitored by the artificial leather manufacturing process parameters to determine the calendering process control parameters corresponding to the four-roll calender, wherein the calendering process control parameters include calendering pressure, calendering speed, and calendering temperature;

[0040] After completing the initialization setting of the four-roll calender, the deviation threshold value is judged and adaptively adjusted at the key control node.

[0041] The feedback control coordinate points refer to data points collected during the manufacturing process and are used to monitor and control the manufacturing process. In the embodiment of the present application, the feedback control coordinate points include m artificial leather manufacturing process parameters and other information. Artificial leather manufacturing process parameters refer to various factors or parameters that affect the artificial leather manufacturing process, such as artificial leather thickness, tensile strength, color, etc., which need to be monitored and controlled during the manufacturing process to ensure the quality of the final product.

[0042] Calendering is a manufacturing process that is usually used to adjust the thickness and other characteristics of artificial leather. A four-roll calender is a device used for calendering, usually consisting of four rollers, for processing artificial leather. Calendering process control parameters are parameters used to control the calendering process, including calendering pressure, calendering speed, calendering temperature, etc.; key control nodes are key stages or locations in the manufacturing process, where deviation threshold judgment and adaptive adjustment are required to ensure product quality.

[0043] The technical results achieved by using this feedback control system. In this case, the manufacturing process can be adaptively adjusted to meet quality requirements and ensure that the final product is consistent in different situations. This means that the manufacturing process can be adjusted based on real-time collected data and process parameters to avoid quality deviations and improve product quality consistency. This helps to ensure that the final artificial leather product meets quality standards and customer needs.

[0044] like Figure 2 As shown, the deviation threshold is judged and adaptively adjusted at the key control node, and Step-4 also includes:

[0045] Obtain thickness requirement information, tensile strength requirement information, and color requirement information of artificial leather;

[0046] Calculating the difference between the artificial leather manufacturing process parameters and the standard thickness data in the thickness requirement information to obtain an actual thickness deviation;

[0047] The thickness deviation upper limit and the thickness deviation lower limit in the thickness requirement information are compared with the actual thickness deviation to determine whether adaptive adjustment permission is obtained.

[0048] Key control nodes refer to specific steps or stages in the artificial leather manufacturing process; deviation threshold judgment refers to monitoring the difference between actual manufacturing parameters and required parameters at these key nodes, and judging whether to adjust the control parameters; thickness requirement information refers to the thickness requirements of artificial leather products specified by customers or quality standards, specifying the thickness range or value that the final artificial leather product should have; tensile strength requirement information refers to the tensile strength requirements of artificial leather products, that is, the strength that artificial leather products should have when subjected to force; color requirement information refers to the color requirements of artificial leather products, including specific descriptions or standards of colors; standard thickness data difference refers to the difference between the thickness of artificial leather in the actual manufacturing process and the standard thickness specified in the thickness requirement information; the upper and lower limits of thickness deviation refer to the upper and lower limits of the thickness deviation allowed in the manufacturing process. If the actual thickness deviation is within this range, it can be accepted.

[0049] By real-time monitoring and adjustment of the manufacturing process at key control nodes, we can ensure that the final artificial leather products meet the quality requirements and customer needs. Adaptively adjust the manufacturing parameters to avoid product quality deviations and improve product quality consistency. This ensures that the final artificial leather products can meet consistent high quality standards under different circumstances.

[0050] like Figure 2 As shown, it is determined whether to obtain the adaptive adjustment permission, and Step-4 also includes:

[0051] After obtaining the adaptive adjustment permission, obtaining the calendering pressure adjustment information and / or the calendering speed adjustment information and / or the calendering temperature adjustment information;

[0052] The four-roll calender is adjusted according to the calendering pressure adjustment information and / or the calendering speed adjustment information and / or the calendering temperature adjustment information;

[0053] During the adjustment of the four-roll calender, real-time monitoring is performed until the actual thickness deviation meets the thickness deviation upper limit and thickness deviation lower limit in the thickness requirement information.

[0054] After determining that the control parameters need to be adjusted, it also includes adaptively adjusting the four-roll calender in production: the adaptive adjustment permission refers to obtaining authority or approval to implement the operation of automatically adjusting the production parameters. In the implementation example of this application, it means obtaining permission to adjust the parameters of the four-roll calender in an automatic manner.

[0055] The calendering pressure adjustment information refers to data or information related to adjusting the calendering pressure in the four-roll calender. By adjusting the calendering pressure, the thickness and other quality characteristics of the final artificial leather product can be affected; the calendering speed regulation information refers to data or information related to adjusting the calendering speed of the four-roll calender. Adjusting the calendering speed can affect the thickness and quality of the final artificial leather product; the calendering temperature regulation information refers to data or information related to adjusting the temperature of the four-roll calender. By adjusting the temperature, the fluidity of the material and the characteristics of the final artificial leather product can be controlled.

[0056] A four-roll calender is a machine used to process materials, usually used to manufacture films, paper, leather and other materials, by passing the materials through four rollers to achieve processing and calendering; the real-time monitoring refers to the continuous monitoring and recording of relevant parameters and data during the production process to ensure that the production process is carried out within the prescribed range; the thickness requirement information refers to the specifications or requirements of the product, including the required thickness range of the final product.

[0057] The result or effect achieved during the adaptive adjustment process. In the implementation example of the present application, the parameters of the four-roll calender are monitored in real time and automatically adjusted to ensure that the thickness of the final artificial leather product is within the specified range, thereby improving the consistency of the quality of the artificial leather product, helping to ensure the production of high-quality artificial leather products that meet quality requirements.

[0058] Obtaining calendering pressure adjustment information and / or calendering speed adjustment information and / or calendering temperature adjustment information, Step-4 also includes:

[0059] Obtaining calendering process technical parameters corresponding to the four-roll calender, wherein the calendering process technical parameters include roller linear speed, speed adjustment range, calendering accuracy, product thickness range, driving power, and temperature adjustment range;

[0060] Based on the calendering process technical parameters, calendering pressure adjustment unit, calendering speed adjustment unit, and calendering temperature adjustment unit are set respectively;

[0061] The calendering pressure adjustment information and / or calendering speed adjustment information and / or calendering temperature adjustment information are obtained through the calendering pressure adjustment unit, the calendering speed adjustment unit and the calendering temperature adjustment unit.

[0062] Monitoring and adjusting the operating parameters of the four-roll calender to ensure that the produced artificial leather products are within the specified quality requirements also include: the four-roll calender can adjust the thickness and properties of the material by applying pressure and temperature; the calendering pressure refers to the force applied to the material during the calendering process to make it thinner or change its properties; the calendering speed regulation refers to adjusting the rotation speed of the rollers to control the speed at which the material passes through the four-roll calender; the calendering temperature regulation refers to controlling the temperature of the rollers to affect the softening or hardening of the material, thereby changing its properties; the calendering process technical parameters include various parameters related to the calendering process, such as roller line speed, speed regulation range, calendering accuracy, product thickness range, driving power and temperature adjustment range, etc.

[0063] On the one hand, by monitoring and automatically adjusting the parameters of the four-roll calender, the thickness of the final product can be ensured to be within the specified range, thereby improving the quality consistency of the product; on the other hand, by accurately controlling the calendering process, the scrap rate of the product can be reduced and the production cost can be reduced; in short, the production process can be improved through automation and precise control to produce high-quality artificial leather products and improve production efficiency and consistency.

[0064] Based on the calendering process technical parameters, the calendering pressure adjustment unit, the calendering speed adjustment unit, and the calendering temperature adjustment unit are set respectively. Step-4 also includes:

[0065] According to the calendering precision and product thickness range in the calendering process technical parameters, a calendering pressure adjustment unit is set, wherein the calendering pressure adjustment unit also includes a pressure unit adjustment bounded jitter;

[0066] According to the roller linear speed and speed regulation range in the calendering process technical parameters, a calendering speed regulation unit is set, wherein the calendering speed regulation unit also includes a bounded jitter for adjusting the speed unit;

[0067] According to the driving power and temperature adjustment range in the calendering process technical parameters, the calendering temperature adjustment unit is set, and the calendering temperature adjustment unit also includes the temperature unit to adjust the bounded jitter.

[0068] In the setting of calendering process technical parameters, various key variables in the artificial leather production process are controlled and monitored, and the calendering process technical parameters refer to various process parameters that need to be controlled and adjusted when manufacturing artificial leather to ensure the quality and performance of the final product, including calendering pressure, calendering speed and calendering temperature, etc.; the calendering pressure adjustment unit is a unit used to control and adjust the calendering pressure in the four-roll calender, which is used to change the pressure applied to the raw materials during the calendering process; the calendering speed regulation unit is a unit used to control and adjust the calendering speed in the four-roll calender, which is used to change the linear speed of the rollers during the calendering process, affecting the thickness and quality of the product.

[0069] The calendering temperature control unit is a unit used to control and adjust the temperature in the four-roll calender, which is used to change the temperature during the calendering process, heat or cool the raw materials to affect the properties of the products; the calendering accuracy refers to the ability to control the thickness of the product during the calendering process. Higher calendering accuracy means that products with more consistent thickness can be produced. At the same time, the calendering pressure adjustment unit; the product thickness range refers to the thickness range of artificial leather products that can be produced during the calendering process. Usually, the production process needs to control the thickness of the product within a certain range.

[0070] Bounded jitter refers to the small fluctuations or changes that can be tolerated when adjusting the calendering pressure, speed and temperature units. Bounded jitter means that these parameters can fluctuate within a certain range but cannot exceed the standard limits. The expected results are achieved by adjusting and controlling the calendering process technical parameters, thereby producing high-quality artificial leather products and improving production efficiency and consistency.

[0071] The calendering pressure adjustment unit also includes a pressure unit to adjust bounded jitter, and Step-4 also includes:

[0072] During the adjustment process of the four-roll calender, real-time monitoring is performed to obtain a pressure adjustment actual jitter data set, a speed adjustment actual jitter data set, and a temperature adjustment actual jitter data set;

[0073] Determining pressure-adjusted abnormal jitter data by using the pressure-unit-adjusted bounded jitter and the pressure-adjusted actual jitter data set;

[0074] By analyzing and calculating the pressure-adjusted actual jitter data set, a pressure-adjusted jitter standard deviation is obtained;

[0075] Periodic calibration is performed using the pressure adjustment abnormal jitter data and the pressure adjustment jitter standard deviation.

[0076] Bounded jitter means that these parameters can fluctuate within a certain range, but cannot exceed the standard limit, and also includes that the pressure unit adjustment bounded jitter refers to the process of adjusting the four-roll calender, making a small adjustment to the pressure unit so that it fluctuates or jitters within a limited range, in order to ensure that the quality and performance of the product are within an acceptable range;

[0077] The actual jitter data set of pressure adjustment, the actual jitter data set of speed adjustment, and the actual jitter data set of temperature adjustment are a collection of data recording the fluctuation of different parameters (pressure, speed, temperature) in actual operation; abnormal jitter data of pressure adjustment refers to abnormal or abnormal fluctuation data related to pressure adjustment outside the expected range; the standard deviation of pressure adjustment jitter is a statistical indicator calculated by analyzing the actual jitter data set of pressure adjustment, which is used to measure the stability and consistency of pressure adjustment; periodic calibration means regularly calibrating the four-roll calender to ensure that the four-roll calender can operate in the expected manner and the adjustment of each parameter is accurate. At the same time, the calibration of the four-roll calender complies with GB / T 15478-2015 "Technical Conditions for Calenders". Artificial leather is a product made of a mixture of plastic and rubber, so it also needs to comply with GB / T 26092-2010 "Safety Requirements for Rubber and Plastic Calenders";

[0078] By implementing the above processes and controls, the expected results include the production of high-quality artificial leather products, improved production efficiency and consistency. In short, by adjusting and monitoring the four-roll calender, better product quality and higher production efficiency can be achieved.

[0079] In summary, the adaptive adjustment method and system for artificial leather production equipment provided by the embodiments of the present application have the following technical effects:

[0080] 1. By dynamically adjusting manufacturing parameters, the manufacturing process can be controlled more accurately, making product quality more stable and reliable.

[0081] 2. By adjusting manufacturing parameters in real time, process deviations that may lead to product defects can be corrected in a timely manner, thereby improving the overall quality level of artificial leather products.

[0082] 3. Timely feedback and adjustments can reduce manufacturing defects caused by process deviations and reduce the defective rate.

[0083] 4. Through more precise process control, unnecessary process adjustments and waste generation can be avoided, thus improving production efficiency.

[0084] 5. Due to the real-time monitoring during the adjustment of the four-roll calender, the actual jitter data set of pressure adjustment, speed adjustment, and temperature adjustment are obtained; the pressure adjustment abnormal jitter data is determined by adjusting the bounded jitter of the pressure unit and the actual jitter data set of pressure adjustment; the pressure adjustment jitter standard deviation is obtained by analysis and calculation through the actual jitter data set of pressure adjustment; and periodic calibration is performed through the pressure adjustment abnormal jitter data and the pressure adjustment jitter standard deviation. By executing the above process and control, the expected results include the production of high-quality artificial leather products, improved production efficiency and consistency. In short, by adjusting and monitoring the four-roll calender, better product quality and higher production efficiency can be achieved.

[0085] Embodiment 2

[0086] Based on the same inventive concept as the adaptive adjustment method of the artificial leather production equipment in the aforementioned embodiment, Figure 3 As shown, the embodiment of the present application provides an adaptive adjustment system for artificial leather production equipment, wherein the system comprises:

[0087] The data collection module 100 is used to collect temperature and humidity data in the artificial leather manufacturing workshop to obtain temperature distribution data and humidity distribution data, wherein the temperature distribution data and humidity distribution data are both marked with position coordinates;

[0088] The process information axis setting module 200 is used to set the artificial leather manufacturing process information axis according to the artificial leather manufacturing process and the temperature distribution data and the humidity distribution data, wherein the artificial leather manufacturing process information axis at least includes a batching and mixing process information node, a plasticating process information node, a calendering process information node, a preheating process information node, an embossing process information node, and a cooling process information node;

[0089] The feedback data extraction module 300 is used to connect to the artificial leather quality inspection system and extract the quality inspection feedback database, wherein the artificial leather quality inspection feedback database includes an artificial leather surface defect data packet and an artificial leather thickness defect data packet;

[0090] A feedback control module 400, for determining feedback control coordinate points for artificial leather manufacturing according to the quality inspection feedback database, wherein the feedback control coordinate points include m artificial leather manufacturing process parameters;

[0091] A classification and aggregation module 500 is used to classify and aggregate feedback control coordinate points of artificial leather manufacturing according to the artificial leather manufacturing process information axis to obtain n classified and aggregated feedback control coordinate centers;

[0092] The thickness requirement acquisition module 600 is used to acquire the thickness requirement information of the artificial leather before the calendering process, wherein the thickness requirement information includes standard thickness data, thickness deviation upper limit, and thickness deviation lower limit;

[0093] The adaptive adjustment module 700 is used to use the thickness requirement information to complete the initialization setting of the four-roll calender, and then use the n classified aggregation feedback control coordinate centers as key control nodes for adaptive adjustment.

[0094] Furthermore, the feedback control module 400 is further configured to perform the following steps:

[0095] In the process of artificial leather manufacturing, collecting artificial leather manufacturing process parameters in real time, wherein the artificial leather manufacturing process parameters at least include artificial leather thickness, artificial leather tensile strength, and artificial leather color;

[0096] The calendering process is monitored by the artificial leather manufacturing process parameters to determine the calendering process control parameters corresponding to the four-roll calender, wherein the calendering process control parameters include calendering pressure, calendering speed, and calendering temperature;

[0097] After completing the initialization setting of the four-roll calender, the deviation threshold value is judged and adaptively adjusted at the key control node.

[0098] Furthermore, the feedback control module 400 is further configured to perform the following steps:

[0099] Obtain thickness requirement information, tensile strength requirement information, and color requirement information of artificial leather;

[0100] Calculating the difference between the artificial leather manufacturing process parameters and the standard thickness data in the thickness requirement information to obtain an actual thickness deviation;

[0101] The thickness deviation upper limit and the thickness deviation lower limit in the thickness requirement information are compared with the actual thickness deviation to determine whether adaptive adjustment permission is obtained.

[0102] Furthermore, the feedback control module 400 is further configured to perform the following steps:

[0103] After obtaining the adaptive adjustment permission, obtaining the calendering pressure adjustment information and / or the calendering speed adjustment information and / or the calendering temperature adjustment information;

[0104] The four-roll calender is adjusted according to the calendering pressure adjustment information and / or the calendering speed adjustment information and / or the calendering temperature adjustment information;

[0105] During the adjustment of the four-roll calender, real-time monitoring is performed until the actual thickness deviation meets the thickness deviation upper limit and thickness deviation lower limit in the thickness requirement information.

[0106] Furthermore, the feedback control module 400 is further configured to perform the following steps:

[0107] Obtaining calendering process technical parameters corresponding to the four-roll calender, wherein the calendering process technical parameters include roller linear speed, speed adjustment range, calendering accuracy, product thickness range, driving power, and temperature adjustment range;

[0108] Based on the calendering process technical parameters, calendering pressure adjustment unit, calendering speed adjustment unit, and calendering temperature adjustment unit are set respectively;

[0109] The calendering pressure adjustment information and / or calendering speed adjustment information and / or calendering temperature adjustment information are obtained through the calendering pressure adjustment unit, the calendering speed adjustment unit and the calendering temperature adjustment unit.

[0110] Furthermore, the feedback control module 400 is further configured to perform the following steps:

[0111] According to the calendering precision and product thickness range in the calendering process technical parameters, a calendering pressure adjustment unit is set, wherein the calendering pressure adjustment unit also includes a pressure unit adjustment bounded jitter;

[0112] According to the roller linear speed and speed regulation range in the calendering process technical parameters, a calendering speed regulation unit is set, wherein the calendering speed regulation unit also includes a bounded jitter for adjusting the speed unit;

[0113] According to the driving power and temperature adjustment range in the calendering process technical parameters, the calendering temperature adjustment unit is set, and the calendering temperature adjustment unit also includes the temperature unit to adjust the bounded jitter.

[0114] Furthermore, the feedback control module 400 is further configured to perform the following steps:

[0115] During the adjustment process of the four-roll calender, real-time monitoring is performed to obtain a pressure adjustment actual jitter data set, a speed adjustment actual jitter data set, and a temperature adjustment actual jitter data set;

[0116] Determining pressure-adjusted abnormal jitter data by using the pressure-unit-adjusted bounded jitter and the pressure-adjusted actual jitter data set;

[0117] By analyzing and calculating the pressure-adjusted actual jitter data set, a pressure-adjusted jitter standard deviation is obtained;

[0118] Periodic calibration is performed using the pressure adjustment abnormal jitter data and the pressure adjustment jitter standard deviation.

[0119] Any step of the method described above can be stored as a computer instruction or program in an unlimited computer memory, and can be called and recognized by an unlimited computer processor to implement any method in the embodiments of the present application, without any unnecessary restrictions.

[0120] Furthermore, the first or second mentioned above may not only represent an order relationship, but may also represent a specific concept, and / or refer to multiple elements that can be selected individually or in full. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. The self-adaptive adjustment method of artificial leather production equipment is characterized in that: The method comprises: Collect temperature and humidity data in an artificial leather manufacturing workshop to obtain temperature distribution data and humidity distribution data, wherein both the temperature distribution data and the humidity distribution data are marked with position coordinates; According to the artificial leather manufacturing process and the temperature distribution data and the humidity distribution data, an artificial leather manufacturing process information axis is set, wherein the artificial leather manufacturing process information axis at least includes a batching and mixing process information node, a plasticating process information node, a calendering process information node, a preheating process information node, an embossing process information node, and a cooling process information node; Connecting to the artificial leather quality inspection system to extract the quality inspection feedback database, wherein the artificial leather quality inspection feedback database includes an artificial leather surface defect data packet and an artificial leather thickness defect data packet; Determining feedback control coordinate points for artificial leather manufacturing according to the quality inspection feedback database, wherein the feedback control coordinate points include m artificial leather manufacturing process parameters; According to the artificial leather manufacturing process information axis, the feedback control coordinate points of artificial leather manufacturing are classified and aggregated to obtain n classified and aggregated feedback control coordinate centers; Before the calendering process, obtaining thickness requirement information of the artificial leather, wherein the thickness requirement information includes standard thickness data, thickness deviation upper limit, and thickness deviation lower limit; After completing the initialization setting of the four-roll calender using the thickness requirement information, the n classified aggregation feedback control coordinate centers are used as key control nodes for adaptive adjustment; The feedback control coordinate points include m artificial leather manufacturing process parameters, and the method further includes: In the process of artificial leather manufacturing, collecting artificial leather manufacturing process parameters in real time, wherein the artificial leather manufacturing process parameters at least include artificial leather thickness, artificial leather tensile strength, and artificial leather color; The calendering process is monitored by the artificial leather manufacturing process parameters to determine the calendering process control parameters corresponding to the four-roll calender, wherein the calendering process control parameters include calendering pressure, calendering speed, and calendering temperature; After completing the initialization setting of the four-roll calender, the deviation threshold is judged and adaptively adjusted at the key control node, including: Obtain thickness requirement information, tensile strength requirement information, and color requirement information of artificial leather; Calculating the difference between the artificial leather manufacturing process parameter and the standard thickness data in the thickness requirement information to obtain an actual thickness deviation; The thickness deviation upper limit and the thickness deviation lower limit in the thickness requirement information are compared with the actual thickness deviation to determine whether adaptive adjustment permission is obtained.

2. The self-adaptive adjustment method of artificial leather production equipment according to claim 1, characterized in that: Determining whether to obtain adaptive adjustment permission, the method further includes: After obtaining the adaptive adjustment permission, obtaining the calendering pressure adjustment information and / or the calendering speed adjustment information and / or the calendering temperature adjustment information; The four-roll calender is adjusted according to the calendering pressure adjustment information and / or the calendering speed adjustment information and / or the calendering temperature adjustment information; During the adjustment of the four-roll calender, real-time monitoring is performed until the actual thickness deviation meets the thickness deviation upper limit and thickness deviation lower limit in the thickness requirement information.

3. The self-adaptive adjustment method of artificial leather production equipment according to claim 2, characterized in that: Acquiring calendering pressure adjustment information and / or calendering speed adjustment information and / or calendering temperature adjustment information, the method further comprises: Obtaining calendering process technical parameters corresponding to the four-roll calender, wherein the calendering process technical parameters include roller linear speed, speed adjustment range, calendering accuracy, product thickness range, driving power, and temperature adjustment range; Based on the calendering process technical parameters, calendering pressure adjustment unit, calendering speed adjustment unit, and calendering temperature adjustment unit are set respectively; The calendering pressure adjustment information and / or calendering speed adjustment information and / or calendering temperature adjustment information are obtained through the calendering pressure adjustment unit, the calendering speed adjustment unit and the calendering temperature adjustment unit.

4. The self-adaptive adjustment method of artificial leather production equipment according to claim 3, characterized in that: Based on the calendering process technical parameters, a calendering pressure adjustment unit, a calendering speed adjustment unit, and a calendering temperature adjustment unit are set respectively, and the method includes: According to the calendering precision and product thickness range in the calendering process technical parameters, a calendering pressure adjustment unit is set, wherein the calendering pressure adjustment unit also includes a pressure unit adjustment bounded jitter; According to the roller linear speed and speed regulation range in the calendering process technical parameters, a calendering speed regulation unit is set, wherein the calendering speed regulation unit also includes a bounded jitter for adjusting the speed unit; According to the driving power and temperature adjustment range in the calendering process technical parameters, the calendering temperature adjustment unit is set, and the calendering temperature adjustment unit also includes the temperature unit to adjust the bounded jitter.

5. The self-adaptive adjustment method of artificial leather production equipment according to claim 4, characterized in that: The calendering pressure adjustment unit also includes a pressure unit to adjust bounded jitter, and the method further includes: During the adjustment process of the four-roll calender, real-time monitoring is performed to obtain a pressure adjustment actual jitter data set, a speed adjustment actual jitter data set, and a temperature adjustment actual jitter data set; Determining pressure-adjusted abnormal jitter data by using the pressure-unit-adjusted bounded jitter and the pressure-adjusted actual jitter data set; By analyzing and calculating the pressure-adjusted actual jitter data set, a pressure-adjusted jitter standard deviation is obtained; Periodic calibration is performed using the pressure adjustment abnormal jitter data and the pressure adjustment jitter standard deviation.

6. The adaptive adjustment system of artificial leather production equipment is characterized by: The method for implementing the self-adaptive adjustment of the artificial leather production equipment according to any one of claims 1 to 5 comprises: A data collection module is used to collect temperature and humidity data in an artificial leather manufacturing workshop to obtain temperature distribution data and humidity distribution data, wherein both the temperature distribution data and the humidity distribution data are marked with position coordinates; A process information axis setting module is used to set the artificial leather manufacturing process information axis according to the artificial leather manufacturing process and the temperature distribution data and the humidity distribution data, wherein the artificial leather manufacturing process information axis at least includes a batching and mixing process information node, a plasticating process information node, a calendering process information node, a preheating process information node, an embossing process information node, and a cooling process information node; A feedback data extraction module is used to connect to the artificial leather quality inspection system and extract a quality inspection feedback database, wherein the artificial leather quality inspection feedback database includes an artificial leather surface defect data packet and an artificial leather thickness defect data packet; A feedback control module, used to determine feedback control coordinate points for artificial leather manufacturing according to the quality inspection feedback database, wherein the feedback control coordinate points include m artificial leather manufacturing process parameters; A classification and aggregation module, used to classify and aggregate feedback control coordinate points of artificial leather manufacturing according to the artificial leather manufacturing process information axis, and obtain n classified and aggregated feedback control coordinate centers; A thickness requirement acquisition module is used to acquire thickness requirement information of artificial leather before the calendering process, wherein the thickness requirement information includes standard thickness data, thickness deviation upper limit, and thickness deviation lower limit; The adaptive adjustment module is used to use the thickness requirement information to complete the initialization setting of the four-roll calender, and then use the n classified aggregation feedback control coordinate centers as key control nodes for adaptive adjustment.

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