Control and regulation system for hemostatic gauze production

Abstract

The invention discloses a control and regulation system for hemostatic gauze production, which comprises a raw material supply control module, a production process monitoring module, an intelligent regulation execution module, a quality detection and feedback module and a human-computer interaction interface, and is characterized in that the raw material supply module is used for accurately controlling raw material supply and is provided with a material level sensor and a stirring device; the conveying speed is accurately regulated and controlled through a formula, the uniformity of raw materials is ensured, the production process monitoring module monitors key parameters in real time, the sensor wirelessly transmits data, and the intelligent adjusting module automatically adjusts equipment operation parameters. The quality detection module detects products and feeds back results, and a man-machine interaction interface is convenient to operate. Through cooperation of all the modules, raw material supply is accurately controlled, production parameters are monitored in real time, equipment operation is intelligently adjusted, product quality is strictly detected, convenient interaction is provided, the production quality and efficiency of hemostatic gauze are improved, cost is reduced, and high-quality and reliable hemostatic products are provided for the medical field.

Description

Technical Field

[0001] The invention relates to the technical field of hemostatic gauze production systems, and in particular to a control and regulation system for hemostatic gauze production. Background Art

[0002] Hemostatic gauze plays a vital role in the medical field and is widely used in surgical operations and trauma hemostasis. With the continuous advancement of medical technology and the growing clinical needs, higher requirements are placed on the production quality and efficiency of hemostatic gauze.

[0003] The traditional production process of hemostatic gauze mainly relies on manual operation and simple mechanical equipment control. In terms of raw material supply, it usually depends on manual observation of the material level in the silo, and manual addition of raw materials when the material level is insufficient. This method is not only inefficient, but also prone to untimely supply of raw materials due to human negligence, affecting production continuity. For example, during the peak period of surgical demand, if the production of hemostatic gauze is stagnant due to interruption of raw material supply, it may delay the surgical process and bring serious risks to patients.

[0004] There are also many problems with parameter monitoring and control during the production process. For key parameters such as temperature, humidity, and tension, traditional measurement methods have low accuracy. For example, if an ordinary thermometer is used to measure temperature, the error may reach ±2°C or even higher, and the humidity measurement error is also large. This makes it difficult to maintain the production process in an optimal state, resulting in unstable quality of hemostatic gauze. For example, inaccurate temperature control may affect the combination of drug additives and fiber raw materials, thereby reducing the hemostatic performance of hemostatic gauze; improper humidity may make the softness of the gauze not meet the requirements, affecting its fit to the wound.

[0005] In the quality inspection process, traditional methods mostly use sampling inspection, with limited inspection items and relatively backward inspection methods. For the inspection of hemostatic performance, there is a lack of high-precision testers, so only rough assessments can be made; the accuracy of strength testing equipment is not high, which may lead to unqualified products entering the market. This not only fails to guarantee the quality of each batch of hemostatic gauze, but also increases the potential risk of medical accidents. For example, gauze with poor hemostatic performance may not be able to effectively control wound bleeding, posing a life-threatening risk to patients.

[0006] In addition, the traditional production method lacks effective coordination and information feedback mechanisms between various links. Problems that arise in the production process cannot be fed back to the front end in time for adjustment, resulting in low production efficiency and high scrap rate. For example, when quality inspection finds that the product is unqualified, it is difficult to quickly trace it back to the specific links and parameter settings in the production process, and it is impossible to take targeted improvement measures in time.

[0007] To solve these problems, improve the production quality and efficiency of hemostatic gauze, reduce production costs, and meet the growing medical needs, it is urgent to develop an advanced control and regulation system for hemostatic gauze production. Such a system can achieve precise control of raw material supply, real-time monitoring and intelligent regulation of the production process, comprehensive and accurate quality inspection, and efficient coordination among various links, thereby promoting technological progress in the hemostatic gauze production industry and providing higher-quality and reliable hemostatic products for the medical cause. Summary of the Invention

[0008] A control and regulation system for hemostatic gauze production proposed by the present invention aims to solve the problems mentioned in the above prior art.

[0009] To achieve the above object, the present invention adopts the following technical solutions: A control and regulation system for hemostatic gauze production, comprising: A raw material supply control module for precisely controlling the supply of raw materials required for hemostatic gauze production, including fiber raw materials and drug additives. It has a silo, and the silo is equipped with a level sensor. When the level is lower than the preset minimum value, an alarm signal is triggered and the raw material replenishment device is automatically started. The conveying speed of the raw material replenishment device can be adjusted within the range of 5 kg / h to 50 kg / h according to production requirements to ensure the continuity and stability of raw material supply; Let the raw material replenishment amount be M (kg) and the replenishment time be t (h). Then the calculation formula for the conveying speed v (kg / h) of the raw material replenishment device is: v = M / t. Through this formula, the conveying speed can be calculated and precisely regulated according to actual production requirements. At the same time, to ensure the uniformity of raw material mixing, let the total volume of raw materials in the silo be V (m³), the radius of the stirring paddle of the stirring device be r (m), the stirring speed be n (rpm), and the relationship formula between the covered volume C (m³) of the stirring device for one stirring and the stirring speed is: C = k1×n×r 2 (where k1 is a constant related to the structure of the stirring device). By adjusting the stirring speed, the raw materials can be fully mixed. In addition, let the raw material supply control module be associated with the inventory management system. The existing raw material quantity in the inventory is Q (kg), and the raw material quantity required for the production plan is P (kg). When Q < P, a raw material purchase list is automatically generated, and the calculation formula for the procurement lead time T (days) is: T = k2×(P - Q) / v (where k2 is a coefficient related to the procurement process) to ensure the timely replenishment of raw materials.

[0010] A production process monitoring module for real-time monitoring of key parameters in the hemostatic gauze production process, including the operating status, temperature, humidity, and tension of each device on the production line. Data is collected through multiple sensors, and the measurement accuracies of the sensors are respectively temperature ±0.5°C, humidity ±3%, and tension ±0.5 N. The collection frequency is 10 Hz, and the data is transmitted to the central processor for analysis and processing.

[0011] The intelligent adjustment execution module automatically adjusts the operating parameters of the production equipment, including the rotation speed of the textile machine, the temperature of the dryer, and the impregnation time of the drug impregnation equipment, based on the data feedback from the production process monitoring module. The rotation speed of the textile machine can be adjusted within the range of 100rpm to 1000rpm, the temperature of the dryer can be accurately controlled within the range of 40°C to 120°C, and the drug impregnation time can be adjusted between 10s and 60s, ensuring that the production process is always in the best state and improving the production quality of hemostatic gauze.

[0012] The quality inspection and feedback module conducts quality inspection on the hemostatic gauze after production. The inspection items include the hemostatic performance, strength, softness, and uniformity of drug content of the gauze. Advanced inspection equipment is used, such as high-precision hemostatic performance tester, material strength testing machine, softness measuring instrument, and drug content analyzer. The measurement accuracy of the inspection equipment reaches hemostatic performance index ±5%, strength ±1MPa, softness ±5 units, and drug content uniformity ±3%. A quality report is generated based on the inspection results, and the data is fed back to the intelligent adjustment execution module to adjust the production parameters in time.

[0013] The human-computer interaction interface allows operators to interact with the system, and can display various parameters in the production process, equipment operating status, and quality inspection results in real time. Operators can manually input production parameters, start or stop production equipment, and view historical data records through the human-computer interaction interface. At the same time, the system can perform corresponding operations according to the operator's instructions.

[0014] Furthermore, a stirring device is provided inside the silo in the raw material supply control module. The stirring speed of the stirring device can be adjusted between 30rpm and 80rpm to prevent the raw materials from agglomerating and ensure uniform supply of the raw materials. The operation of the stirring device is interlocked with the operation of the raw material replenishing device. When the raw material replenishing device is started, the stirring device is automatically turned on, and the stirring speed is adaptively adjusted according to the raw material replenishing speed.

[0015] Furthermore, the sensors in the production process monitoring module use wireless transmission to transmit data to the central processor. The wireless transmission protocol is ZigBee protocol, and the transmission frequency is 2.4GHz, which ensures the timeliness and stability of data transmission. At the same time, the sensor has a self-diagnosis function. When a sensor fails, it can automatically send a fault alarm signal and transmit the fault information to the human-computer interaction interface for display.

[0016] Furthermore, the adjustment action in the intelligent adjustment execution module adopts a closed-loop control method. According to the deviation between the set target parameters and the actual monitoring parameters, the adjustment amount is calculated by a proportional-integral-differential (PID) controller. The proportional coefficient of the PID controller is 0.8, the integral time is 5s, and the differential time is 1s, so as to achieve precise control of the operating parameters of the production equipment and enable the production process to reach the expected state quickly and stably.

[0017] Furthermore, the testing equipment in the quality inspection and feedback module has an automatic calibration function. The calibration period can be set between 7 and 30 days according to the use of the equipment. The calibration process uses standard samples for comparison to ensure the measurement accuracy of the testing equipment. The testing equipment automatically generates a test data report after the test is completed. The report format is PDF format, which is convenient for data storage, analysis and sharing.

[0018] Further, a method for producing hemostatic gauze comprises the following steps: The raw material preparation step is to add the required fiber raw materials and drug additive raw materials into the silo of the raw material supply control module according to the production plan, start the raw material supply control module, set the initial conveying speed of the raw material replenishment device, and ensure that the raw materials in the silo are sufficient and in a stirring state.

[0019] In the production startup step, the production equipment is started through the human-computer interaction interface. The production process monitoring module begins to collect the operating parameters and production environment parameters of each production equipment in real time, and transmits the data to the central processor for analysis and processing. The intelligent adjustment execution module controls the operation of the production equipment according to the preset initial parameters.

[0020] In the process monitoring and adjustment step, the central processor continuously receives data from the production process monitoring module and compares it with the preset target parameters. If a deviation is found, the intelligent adjustment execution module calculates the adjustment amount through the PID controller and adjusts the operating parameters of the production equipment in time, such as the speed of the textile machine, the temperature of the dryer, and the drug impregnation time, to ensure the stability of the production process; In this process, the proportional coefficient of the PID controller is 0.8, the integral time is 5s, and the differential time is 1s. The specific calculation formula is: , is the output of the controller; , is the target parameter setting value, is the measured value, is the error signal; is the proportionality coefficient, is the integration coefficient, is the differential coefficient, is the integral of the error signal, It is the first-order derivative of the error signal, which indicates the rate of change of the error. Through this formula, the system can accurately calculate the amount that needs to be adjusted according to the real-time change of the deviation, so that the operating parameters of the production equipment quickly approach the target value, ensuring the stability of the production process and the consistency of product quality.

[0021] Quality inspection step: After the hemostatic gauze is produced, the inspection equipment of the quality inspection and feedback module will conduct quality inspection on it. The inspection items include hemostatic performance, strength, softness, and uniformity of drug content. The inspection equipment automatically generates a quality report and transmits it to the central processor and the human-computer interaction interface.

[0022] Feedback adjustment steps: The central processor determines whether the product is qualified based on the quality inspection results. If it is unqualified, it analyzes the reasons and adjusts the corresponding production parameters, such as raw material ratio and production process parameters, through the intelligent adjustment execution module. At the same time, the quality problems and adjustment measures are recorded for subsequent traceability and optimization of the production process. If it is qualified, it proceeds to the next step.

[0023] In the finished product packaging step, qualified hemostatic gauze is packaged. The packaging specifications can be set according to customer needs in the human-computer interaction interface. During the packaging process, the system automatically records the packaging quantity and production date information to complete the production of hemostatic gauze.

[0024] Furthermore, the raw material supply control module can automatically calculate the amount of raw materials required according to the production plan and exchange data with the inventory management system. When the inventory is insufficient, it will automatically generate a raw material purchase list, which includes the raw material name, specifications, quantity, and estimated arrival time information and send it to the purchasing department to ensure uninterrupted production.

[0025] Furthermore, in the process monitoring and adjustment steps, when an abnormal situation occurs in the production process, such as equipment failure or parameters seriously deviating from the normal range, the system automatically stops the operation of the production equipment, sends out an audible and visual alarm signal, and displays detailed fault information on the human-computer interaction interface, including the name of the faulty equipment, fault time, and fault parameters. At the same time, a fault log is recorded to enable maintenance personnel to quickly locate and troubleshoot the fault.

[0026] Furthermore, in the quality inspection step, the quality inspection and feedback module can automatically determine whether the product is qualified according to the preset quality standards. For unqualified products, the system automatically sorts them into the unqualified product area and classifies and counts the reasons for the unqualified products. The statistical results are displayed in the form of charts on the human-computer interaction interface to help production managers analyze the main causes of quality problems so as to take targeted improvement measures.

[0027] Furthermore, in the finished product packaging step, the packaging equipment is connected to the system, and the system can adjust the production speed in real time according to the working status of the packaging equipment to ensure the coordinated operation of production and packaging and improve production efficiency. At the same time, after the packaging is completed, the system automatically generates a unique QR code or barcode for each batch of hemostatic gauze. The QR code or barcode contains the product production date, batch number, and quality inspection result information to facilitate product traceability and quality control.

[0028] Compared with the prior art, the present invention has the following beneficial effects: First, the present invention accurately controls the supply of raw materials by setting up a raw material supply control module. By using a material level sensor and a raw material replenishing device, it is ensured that the raw materials are always sufficient and the supply is stable, thereby avoiding production interruptions caused by insufficient raw materials. For example, under the demand for large-scale production, fiber raw materials and drug additives can be replenished in time to ensure the continuity of production. At the same time, the stirring device in the silo and its interlocking mechanism with the raw material replenishing device can prevent the raw materials from agglomerating and ensure the uniform supply of raw materials, thereby improving the quality consistency of the hemostatic gauze. The raw material replenishment speed and procurement lead time are accurately calculated through relevant formulas, which further optimizes the raw material supply management and reduces inventory costs and production risks.

[0029] Secondly, the production process monitoring module monitors key parameters in real time, and ensures the accuracy and timeliness of the parameters through high-precision sensors and advanced data transmission methods. The precise control of parameters such as temperature, humidity, tension, etc. provides stable environmental conditions for the production of hemostatic gauze. For example, accurate control of the dryer temperature within the range of 40°C to 120°C can better combine drug additives with fiber raw materials, improve the hemostatic performance of hemostatic gauze and the uniformity of drug content. The intelligent adjustment execution module automatically adjusts the operating parameters of the production equipment according to the monitoring data, and adopts PID controllers and innovative formulas to achieve precise control of the production process, quickly and stably reach the expected production state, and improve production efficiency and product quality.

[0030] Finally, the quality inspection and feedback module conducts a comprehensive inspection of the hemostatic gauze to ensure that the product meets the quality standards. High-precision testing equipment and strict measurement accuracy requirements, such as hemostatic performance indicators ±5%, strength ±1MPa, etc., ensure the reliability of the product. Timely feedback of test results and automatically generated quality reports facilitate production managers to analyze problems and adjust production parameters, achieving continuous optimization of the production process. The human-computer interaction interface facilitates interaction between operators and the system, improving the convenience and controllability of production operations.

[0031] In summary, the control and regulation system for the production of hemostatic gauze of the present invention significantly improves the production quality and efficiency of hemostatic gauze through the synergistic effect of various modules, reduces production costs, and provides a more high-quality and reliable hemostatic product for the medical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic block diagram of a control and regulation system for producing hemostatic gauze proposed by the present invention; Figure 2 The present invention is a schematic block diagram of a method for producing hemostatic gauze. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] Reference Figure 1-2 :A control and regulation system for producing hemostatic gauze, comprising: The raw material supply control module plays a vital role in the production of hemostatic gauze. It can accurately control the supply of raw materials required for the production of hemostatic gauze, such as fiber raw materials and drug additives. The module is equipped with a silo with a material level sensor. When the material level in the silo is lower than the preset minimum value, an alarm signal will be triggered immediately, and the raw material replenishment device will be automatically started. The conveying speed of the raw material replenishment device can be flexibly adjusted in the range of 5kg / h to 50kg / h according to actual production needs, thereby effectively ensuring the continuity and stability of raw material supply.

[0037] In order to achieve more accurate conveying speed control, we introduced a formula calculation. Assuming the raw material replenishment amount is M (kg) and the replenishment time is t (h), the conveying speed v (kg / h) of the raw material replenishment device can be calculated by the formula v=M / t. With this formula, production personnel can accurately calculate the required conveying speed according to the actual production situation and perform precise regulation.

[0038] In addition, in order to ensure the uniformity of the mixing of raw materials, a stirring device is installed inside the silo. The radius of the stirring blade of the stirring device is r (m), and the stirring speed is n (rpm). Through research, it is found that there is a specific relationship between the volume C (m³) covered by the stirring device in one stirring and the stirring speed n, and the relationship formula is C=k1×n×r² (where k1 is a constant related to the structure of the stirring device). By adjusting the stirring speed n, it can be ensured that the raw materials are fully mixed in the silo, providing uniform raw materials for the subsequent production process.

[0039] Moreover, this module is closely linked to the inventory management system. When the amount of raw materials in stock Q (kg) is less than the amount of raw materials P (kg) required for the production plan, the system will automatically generate a raw material purchase list. The procurement lead time T (days) can be calculated by the formula T = k2 × (PQ) / v (where k 2 is the coefficient related to the procurement process). This formula ensures that when inventory is insufficient, raw materials can be purchased in a timely manner, thus ensuring uninterrupted production.

[0040] The stirring speed of the stirring device can be adjusted between 30rpm and 80rpm, which effectively prevents the occurrence of raw material agglomeration and ensures the uniform supply of raw materials. At the same time, the operation of the stirring device is interlocked with the operation of the raw material replenishing device. When the raw material replenishing device is started, the stirring device will automatically start, and the stirring speed will be adaptively adjusted according to the raw material replenishing speed, further improving the efficiency and quality of raw material supply.

[0041] The production process monitoring module is responsible for real-time monitoring of key parameters in the production process of hemostatic gauze. These key parameters include the operating status of each device on the production line, temperature, humidity, tension, etc. Through multiple high-precision sensors, these parameters can be accurately collected. The measurement accuracy of the sensors is temperature ±0.5°C, humidity ±3%, tension ±0.5N, and the collection frequency is 10Hz, which ensures the accuracy and timeliness of the data. The collected data will be transmitted to the central processor for in-depth analysis and processing.

[0042] The sensor uses wireless transmission to transmit data to the central processor. The wireless transmission protocol is ZigBee protocol and the transmission frequency is 2.4GHz. This transmission method ensures the timeliness and stability of data transmission and avoids the problems of data loss and transmission delay. At the same time, the sensor also has a self-diagnosis function. When the sensor fails, it can automatically send out a fault alarm signal and transmit the fault information to the human-computer interaction interface for display, which is convenient for maintenance personnel to handle in time and ensure the smooth progress of the production process.

[0043] The intelligent adjustment execution module automatically adjusts the operating parameters of the production equipment based on the data feedback from the production process monitoring module. These parameters include the speed of the textile machine, the temperature of the dryer, the impregnation time of the drug impregnation equipment, etc. The speed of the textile machine can be adjusted within the range of 100rpm to 1000rpm, the temperature of the dryer can be accurately controlled within the range of 40°C to 120°C, and the drug impregnation time can be adjusted between 10s and 60s. Through the precise control of these parameters, it can ensure that the production process is always in the best state, thereby greatly improving the production quality of hemostatic gauze.

[0044] The regulation action in this module adopts a closed-loop control method. According to the deviation between the set target parameters and the actual monitoring parameters, the proportional-integral-differential (PID) controller calculates the regulation amount. The proportional coefficient of the PID controller is 0.8, the integral time is 5s, and the differential time is 1s. This control method can achieve precise control of the operating parameters of the production equipment, so that the production process can quickly and stably reach the expected state.

[0045] The quality inspection and feedback module conducts comprehensive quality inspection on the hemostatic gauze produced. The inspection items cover the hemostatic performance, strength, softness, uniformity of drug content and other aspects of the gauze. The use of advanced testing equipment, such as high-precision hemostatic performance tester, material strength testing machine, softness measuring instrument, drug content analyzer, etc., can accurately detect these items. The measurement accuracy of the testing equipment reaches ±5% of the hemostatic performance index, ±1MPa of strength, ±5 units of softness, and ±3% of drug content uniformity, ensuring the accuracy and reliability of the test results.

[0046] Based on the test results, the system will automatically generate a quality report in PDF format, which is convenient for data storage, analysis and sharing. At the same time, the test results will be fed back to the intelligent adjustment execution module to adjust the production parameters in time and achieve continuous optimization of the production process.

[0047] The human-machine interface provides a convenient way for operators to interact with the system. Through the human-machine interface, operators can display various parameters in the production process, equipment operating status, quality inspection results and other information in real time. Operators can manually input production parameters, start or stop production equipment, view historical data records and other operations through the human-machine interface. At the same time, the system can perform corresponding operations according to the operator's instructions, which improves the flexibility and controllability of production operations.

[0048] In the present invention, a method for producing hemostatic gauze comprises the following steps: The raw material preparation step is to add the required fiber raw materials and drug additive raw materials into the silo of the raw material supply control module according to the production plan, start the raw material supply control module, set the initial conveying speed of the raw material replenishment device, and ensure that the raw materials in the silo are sufficient and in a stirring state.

[0049] In the production startup step, the production equipment is started through the human-computer interaction interface. The production process monitoring module begins to collect the operating parameters and production environment parameters of each production equipment in real time, and transmits the data to the central processor for analysis and processing. The intelligent adjustment execution module controls the operation of the production equipment according to the preset initial parameters.

[0050] In the process monitoring and adjustment step, the central processor continuously receives data from the production process monitoring module and compares it with the preset target parameters. If a deviation is found, the intelligent adjustment execution module calculates the adjustment amount through the PID controller and adjusts the operating parameters of the production equipment in time, such as the speed of the textile machine, the temperature of the dryer, and the drug impregnation time, to ensure the stability of the production process; In this process, the proportional coefficient of the PID controller is 0.8, the integral time is 5s, and the differential time is 1s. The specific calculation formula is: , is the output of the controller; , is the target parameter setting value, is the measured value, is the error signal; is the proportionality coefficient, is the integration coefficient, is the differential coefficient, is the integral of the error signal, It is the first-order derivative of the error signal, which indicates the rate of change of the error. Through this formula, the system can accurately calculate the amount that needs to be adjusted according to the real-time change of the deviation, so that the operating parameters of the production equipment quickly approach the target value, ensuring the stability of the production process and the consistency of product quality.

[0051] Quality inspection step: After the hemostatic gauze is produced, the inspection equipment of the quality inspection and feedback module will conduct quality inspection on it. The inspection items include hemostatic performance, strength, softness, and uniformity of drug content. The inspection equipment automatically generates a quality report and transmits it to the central processor and the human-computer interaction interface.

[0052] Feedback adjustment steps: The central processor determines whether the product is qualified based on the quality inspection results. If it is unqualified, it analyzes the reasons and adjusts the corresponding production parameters, such as raw material ratio and production process parameters, through the intelligent adjustment execution module. At the same time, the quality problems and adjustment measures are recorded for subsequent traceability and optimization of the production process. If it is qualified, it proceeds to the next step.

[0053] In the finished product packaging step, qualified hemostatic gauze is packaged. The packaging specifications can be set according to customer needs in the human-computer interaction interface. During the packaging process, the system automatically records the packaging quantity and production date information to complete the production of hemostatic gauze.

[0054] In the present invention, the raw material supply control module shows a high degree of intelligence and automation. It can accurately and automatically calculate the amount of raw materials required according to the production plan. By performing efficient data interaction with the inventory management system, the inventory situation can be mastered in real time. When the inventory is insufficient, the system will respond quickly and automatically generate a detailed raw material purchase list. This purchase list covers key information such as the name, specification, quantity and expected arrival time of the raw materials. Subsequently, the purchase list will be sent to the purchasing department in a timely manner to provide it with clear purchasing guidance. Such a design ensures that the production process will not be interrupted due to a shortage of raw materials, and a continuous and stable production state is always maintained. For example, when a large amount of fiber raw materials and drug additives are required for the production of hemostatic gauze in the production plan, the raw material supply control module will accurately calculate the specific quantity required and check it with the inventory management system. If it is found that the quantity of a certain raw material in stock is insufficient to meet production needs, a purchase list will be immediately generated, which clearly lists the names of the required raw materials, such as the names of fiber materials and drug additives of specific specifications; at the same time, the specification requirements are noted to ensure that the purchased raw materials meet the production standards; the quantity part will be accurately calculated based on the production plan and the current inventory difference; the expected arrival time will be reasonably estimated by comprehensively considering factors such as procurement process and transportation time. In this way, it provides a strong guarantee for the continuous production.

[0055] During the production process, the system of the present invention exhibits excellent reliability in the process monitoring and adjustment steps. When an abnormal situation occurs during the production process, such as equipment failure or parameters seriously deviating from the normal range, the system can respond quickly. It will automatically stop the operation of the production equipment to prevent the problem from further expanding, avoiding the production of more defective products or causing greater damage to the equipment. At the same time, the system will issue an audible and visual alarm signal to attract the attention of the operator. On the human-computer interaction interface, detailed fault information will be displayed, including the name of the faulty equipment, the time when the fault occurred, and the specific fault parameters. Such a design enables maintenance personnel to quickly locate the fault point and accurately understand the fault situation so as to take effective troubleshooting measures in time. In addition, the system will also record the fault log at the same time, recording in detail the time, equipment, parameters and other information of the fault occurrence, providing valuable data support for subsequent fault analysis and system optimization. For example, when a textile machine fails, the system will immediately stop the operation of the textile machine and issue an audible and visual alarm. On the human-computer interaction interface, information such as "textile machine failure", "fault time: [specific time]", and "fault parameters: [specific fault parameter description]" will be clearly displayed. Based on this information, maintenance personnel can quickly rush to the site of the faulty equipment and perform precise maintenance operations.

[0056] In the quality inspection step, the quality inspection and feedback module plays an important role. It can automatically determine whether the product is qualified according to the preset quality standards. For the hemostatic gauze produced, the system will use advanced testing equipment to strictly test its hemostatic performance, strength, softness, uniformity of drug content and other aspects. If the test results do not meet the preset quality standards, the system will automatically sort it into the unqualified product area to prevent unqualified products from mixing into qualified products. At the same time, the system will classify and count the reasons for unqualified products, and divide the reasons for unqualified products into different categories, such as raw material problems, production process problems, equipment failure problems, etc. The statistical results will be displayed in the form of charts on the human-computer interaction interface, and presented to production managers intuitively. Such a design helps production managers quickly analyze the main causes of quality problems and take targeted improvement measures. For example, if it is found that unqualified products are mainly caused by uneven drug content over a period of time, production managers can specifically check the operation of drug impregnation equipment, the quality of raw materials, and production process parameters, etc., and adjust and optimize the production process in a timely manner to improve product quality.

[0057] In the finished product packaging step, the packaging equipment is closely connected with the system. The system can adjust the production speed in real time according to the working status of the packaging equipment to ensure the coordinated operation of production and packaging. When the packaging equipment is fast, the system can appropriately increase the production speed to ensure that there is enough product supply for packaging; when the packaging equipment is slow, the system will reduce the production speed to avoid product backlog. In this way, the production efficiency is greatly improved. At the same time, after the packaging is completed, the system will automatically generate a unique QR code or barcode for each batch of hemostatic gauze. The QR code or barcode contains important information such as the product production date, batch number, and quality inspection results. This design facilitates product traceability and quality control. In the subsequent sales and use process, if there is a quality problem or the product information needs to be queried, by scanning the QR code or barcode, you can quickly obtain detailed information about the product, including production time, batch, and quality inspection status, which provides great convenience for quality traceability and problem solving.

[0058] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can replace or change the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A control and adjustment system for the production of hemostatic gauze, characterized in that: include: The raw material supply control module is used to control the supply of raw materials required for the production of hemostatic gauze, including fiber raw materials and drug additives. The module is equipped with a material silo, which is equipped with a material level sensor. When the material level is lower than the preset minimum value, an alarm signal is triggered and the raw material replenishment device is automatically started. The conveying speed of the raw material replenishment device can be adjusted within the range of 5kg / h to 50kg / h according to production needs; The production process monitoring module monitors the key parameters in the production process of hemostatic gauze in real time, including the operating status, temperature, humidity, and tension of each device on the production line. Data is collected through multiple sensors with a measurement accuracy of ±0.5°C for temperature, ±3% for humidity, and ±0.5N for tension. The acquisition frequency is 10Hz and the data is transmitted to the central processor for analysis and processing. The intelligent adjustment execution module automatically adjusts the operating parameters of the production equipment according to the data feedback from the production process monitoring module, including the rotation speed of the textile machine, the temperature of the dryer, and the impregnation time of the drug impregnation equipment. The rotation speed of the textile machine can be adjusted within the range of 100rpm to 1000rpm, the temperature of the dryer can be accurately controlled within the range of 40°C to 120°C, and the drug impregnation time can be adjusted between 10s and 60s; The quality inspection and feedback module conducts quality inspection on the hemostatic gauze after production. The inspection items include the hemostatic performance, strength, softness, and uniformity of drug content of the gauze. The hemostatic performance tester, material strength testing machine, softness measuring instrument, and drug content analyzer are used. The measurement accuracy reaches the hemostatic performance index ±5%, strength ±1MPa, softness ±5 units, and drug content uniformity ±3%. A quality report is generated based on the inspection results, and the data is fed back to the intelligent adjustment execution module; The human-computer interaction interface allows operators to interact with the system, and displays the parameters of the production process, equipment operating status, and quality inspection results in real time. Operators manually input production parameters, start or stop production equipment, and view historical data records through the human-computer interaction interface. At the same time, the system operates according to the operator's instructions.

2. The control and regulation system for producing hemostatic gauze according to claim 1, characterized in that: A stirring device is provided inside the silo in the raw material supply control module. The stirring speed of the stirring device can be adjusted between 30rpm and 80rpm. The operation of the stirring device is interlocked with the operation of the raw material replenishing device. When the raw material replenishing device is started, the stirring device is automatically turned on, and the stirring speed is adaptively adjusted according to the raw material replenishing speed.

3. The control and regulation system for producing hemostatic gauze according to claim 1, characterized in that: The sensors in the production process monitoring module use wireless transmission to transmit data to the central processor. The wireless transmission protocol is ZigBee protocol, and the transmission frequency is 2.4GHz. At the same time, the sensor has a self-diagnosis function. When a sensor fails, it can automatically send a fault alarm signal and transmit the fault information to the human-computer interaction interface for display.

4. The control and regulation system for producing hemostatic gauze according to claim 1, characterized in that: The regulation action in the intelligent regulation execution module adopts a closed-loop control method. According to the deviation between the set target parameters and the actual monitoring parameters, the regulation amount is calculated by the PID control algorithm. The proportional coefficient of the PID controller is 0.8, the integral time is 5s, and the differential time is 1s. The specific calculation formula is: , is the output of the controller; , is the target parameter setting value, is the measured value, is the error signal; is the proportionality coefficient, is the integration coefficient, is the differential coefficient, is the integral of the error signal, is the first derivative of the error signal and represents the rate of change of the error.

5. The control and regulation system for producing hemostatic gauze according to claim 1, characterized in that: The testing equipment in the quality inspection and feedback module has an automatic calibration function. The calibration period is set between 7 and 30 days according to the use of the equipment. The calibration process uses standard samples for comparison. The testing equipment automatically generates a test data report after the test is completed. The report format is PDF.

6. A method for producing hemostatic gauze using the control and regulation system for producing hemostatic gauze according to any one of claims 1 to 5, characterized in that: The following steps are involved: The raw material preparation step is to add the required fiber raw materials and drug additive raw materials into the silo of the raw material supply control module according to the production plan, start the raw material supply control module, and set the initial conveying speed of the raw material replenishment device; Production startup step: start the production equipment through the human-computer interaction interface, the production process monitoring module begins to collect the operating parameters and production environment parameters of each production equipment in real time, transmits the data to the central processor for analysis and processing, and the intelligent adjustment execution module controls the operation of the production equipment according to the preset initial parameters; In the process monitoring and adjustment step, the central processor continuously receives data from the production process monitoring module and compares it with the preset target parameters. If a deviation is found, the intelligent adjustment execution module calculates the adjustment amount through the PID controller and adjusts the operating parameters of the production equipment, including the speed of the textile machine, the temperature of the dryer, and the drug impregnation time; Quality inspection step: after the hemostatic gauze is produced, the inspection equipment of the quality inspection and feedback module will conduct quality inspection on it. The inspection items include hemostatic performance, strength, softness, and uniformity of drug content. The inspection equipment will automatically generate a quality report and transmit it to the central processor and the human-computer interaction interface; Feedback adjustment step: The central processor determines whether the product is qualified based on the quality inspection results. If it is unqualified, the reasons are analyzed and the corresponding production parameters, including raw material ratio and production process parameters, are adjusted through the intelligent adjustment execution module. At the same time, the quality problems and adjustment measures are recorded for traceability and optimization of the production process. If it is qualified, it proceeds to the next step; In the finished product packaging step, qualified hemostatic gauze is packaged. The packaging specifications can be set according to customer needs in the human-computer interaction interface. During the packaging process, the system automatically records the packaging quantity and production date information to complete the production of hemostatic gauze.

7. The method for producing hemostatic gauze according to claim 6, characterized in that: In the raw material preparation step, the raw material supply control module automatically calculates the required amount of raw materials according to the production plan and exchanges data with the inventory management system. When the inventory is insufficient, a raw material purchase list is automatically generated. The purchase list includes the raw material name, specifications, quantity, and estimated arrival time information and is sent to the purchasing department to ensure uninterrupted production.

8. The method for producing hemostatic gauze according to claim 6, characterized in that: In the process monitoring and adjustment steps, when abnormal conditions occur during the production process, including equipment failure and parameters seriously deviating from the normal range, the system automatically stops the operation of the production equipment, sends out an audible and visual alarm signal, and displays detailed fault information on the human-computer interaction interface, including the name of the faulty equipment, fault time, and fault parameters. At the same time, a fault log is recorded for maintenance personnel to quickly locate and troubleshoot the fault.

9. The method for producing hemostatic gauze according to claim 6, characterized in that: In the quality inspection step, the quality inspection and feedback module can automatically determine whether the product is qualified according to the preset quality standards. For unqualified products, the system automatically sorts them into the unqualified product area and classifies and counts the reasons for the unqualified products. The statistical results are displayed in the form of charts on the human-computer interaction interface to help production managers analyze the causes of quality problems.

10. The method for producing hemostatic gauze according to claim 6, characterized in that: In the finished product packaging step, the packaging equipment is connected to the system. The system adjusts the production speed in real time according to the working status of the packaging equipment to ensure the coordinated operation of production and packaging and improve production efficiency. At the same time, after the packaging is completed, the system automatically generates a unique QR code or barcode for each batch of hemostatic gauze. The QR code or barcode contains the product production date, batch number, and quality inspection result information.

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