A method and system for diagnosing interlock and faults of a size press

Abstract

The application discloses a sizing machine interlocking and fault diagnosis method and system, relates to the sizing machine management technical field, and steps of the method comprise feeding monitoring, glue monitoring, glue pumping monitoring, sizing monitoring, fault prompting, sizing interlocking, the sizing machine is monitored and analyzed through the feeding device, glue, glue pumping and sizing of the sizing machine in the sizing process, the state of the sizing machine in the sizing process is judged, and then according to the state of the sizing machine in the sizing process, fault prompting and interlocking are carried out, the deficiency of manual detection of operators in traditional technologies is solved, the intelligentization and automation of the sizing machine interlocking and fault are realized, the efficiency and effect of sizing machine monitoring are greatly improved, meanwhile, the cost and workload of manual detection are reduced, the reliability and reference of sizing machine monitoring results are improved, the smoothness of sizing machine operation is guaranteed, and therefore the production efficiency of the sizing machine is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of glue applicator management technology, and more specifically to a method and system for diagnosing glue applicator interlocks and malfunctions. Background Technology

[0002] With the continuous development of papermaking technology, the scale and speed of paper machines have increased significantly. To meet production demands, sizing machines have also been upgraded from early immersion sizing machines to film transfer sizing machines. With this enhanced functionality, the entire system has become more complex. To ensure the normal operation of the sizing machine, it is necessary to diagnose its interlocks and faults.

[0003] Traditional fault diagnosis of glue applicators still relies on manual methods, depending on experience to find and resolve problems. However, for glue applicators with complex structures, operators need more extensive experience to quickly troubleshoot and resolve faults. If the operator's experience is even slightly insufficient, it will greatly increase the time required for glue applicator fault detection, as well as increase labor costs and the operator's workload, and also affect the production efficiency of the glue applicator. Summary of the Invention

[0004] The purpose of this invention is to provide a method and system for diagnosing interlocks and malfunctions of a glue applicator, which solves the problems existing in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: In the first aspect, the present invention provides a method for diagnosing interlocking and faults of a gluing machine, comprising the following steps: Step 1, feeding monitoring: When the paper to be glued is put into the gluing machine, the gluing machine applies glue to the paper to be glued, and sets up various collection time points according to a preset time interval during the gluing process, thereby collecting the basic information of the feeding pump and the status information of the feeding valve at each collection time point, and then analyzing the safety values ​​corresponding to the feeding pump and the feeding valve, thereby determining the operating status of the feeding device in the gluing machine; if the operating status of the feeding device is in an abnormal state, then step 5 is executed;

[0006] Step 2, Adhesive Monitoring: Collect adhesive information from the adhesive storage container inside the glue applicator at each collection time point, analyze the corresponding adhesive status value of the adhesive storage container inside the glue applicator, and then determine the adhesive status of the adhesive storage container inside the glue applicator. If the adhesive status of the adhesive storage container inside the glue applicator is abnormal, proceed to Step 5 and Step 6.

[0007] Step 3: Glue extraction monitoring: Collect the status parameters of the glue extraction pump in the glue applicator at each collection time point, then analyze the glue extraction status value of the glue extraction pump in the glue applicator, and determine the glue extraction status of the glue extraction pump in the glue applicator. If the glue extraction status of the glue extraction pump in the glue applicator is in a normal state, then proceed to Step 5 and Step 6.

[0008] Step 4: Glue application monitoring: Collect the operating information of the glue application roller in the glue application machine at each collection time point, then calculate the glue application compliance coefficient of the glue application machine, and determine the glue application status of the glue application machine. If the glue application status of the glue application machine is in an abnormal state, proceed to step 5.

[0009] Step 5, Fault Prompt: When the operating status of the feeding device in the glue applicator is abnormal, the glue status of the glue storage container is abnormal, the glue extraction status of the glue pump is abnormal, or the glue application status of the glue applicator is abnormal, a fault prompt will be issued.

[0010] Step 6, Glue Application Interlock: When the glue status corresponding to the glue storage container in the glue applicator is in an abnormal state or the glue extraction status corresponding to the glue extraction pump in the glue applicator is in a normal state, perform an interlock operation on the glue applicator.

[0011] Preferably, the analysis of the safety values ​​corresponding to the feeding pump and the feeding valve is carried out in the following specific process: The vibration frequency, noise level, and pressure corresponding to each sampling time point of the feeding pump are extracted from the basic information collected at each sampling time point and labeled as f. t x t F t , where t represents the number corresponding to each collection time point, t=1,2......p, p is any integer greater than 2;

[0012] Based on the calculation formula Obtain the safety value corresponding to the feed pump. Where f, x, and F are the set reference vibration frequency, reference noise loudness, and reference pressure of the feed pump, respectively, and ε1, ε2, and ε3 are the set weighting factors corresponding to the vibration frequency, noise loudness, and pressure of the feed pump, respectively.

[0013] The on / off state and valve opening of the feeding valve at each data collection time point are extracted from its status information. If the feeding valve is closed at a given time point, the corresponding safety value is recorded as a1; if it is open at all data collection time points, the corresponding safety value is recorded as a2. This method is used to obtain the safety value of the feeding valve's on / off state. in The value can be either a1 or a2, and a1 < a2, where a1 and a2 are both constants;

[0014] The valve opening at each data collection time point is compared with a preset reference valve opening range. If the valve opening at a certain data collection time point is outside the preset reference valve opening range, the safe opening value of the valve is recorded as a3. If the valve opening at each data collection time point is within the preset reference valve opening range, the safe opening value of the valve is recorded as a4. This method is used to obtain the safe opening value of the valve. in The value can be either a3 or a4, and a3 < a4, where a3 and a4 are both constants;

[0015] According to the calculation formula Obtain the safety value corresponding to the feeding valve. Where γ1 and γ2 are the weighting factors corresponding to the set switch safety value and opening degree safety value, respectively.

[0016] Preferably, the specific process for determining the operating status of the feeding device inside the adhesive applicator is as follows: The safety value corresponding to the feeding pump is set... Safety value corresponding to the feeding valve Substitute into the calculation formula In this process, the safety value corresponding to the feeding device inside the glue applicator is obtained. Where γ3 and γ4 are the weighting factors corresponding to the set safety values ​​of the feeding pump and the feeding valve, respectively;

[0017] The safety value corresponding to the feeding device inside the glue applicator is compared with the preset safety value threshold of the feeding device. If the safety value corresponding to the feeding device inside the glue applicator is greater than or equal to the safety value threshold of the feeding device, the operating status of the feeding device inside the glue applicator is determined to be normal. Otherwise, the operating status of the feeding device inside the glue applicator is determined to be abnormal.

[0018] Preferably, the analysis of the glue status value corresponding to the glue storage container inside the glue applicator is specifically performed as follows: Extract the glue temperature, glue viscosity, and glue volume corresponding to each collection time point from the glue information of the glue storage container inside the glue applicator at each collection time point, and record them as T. t D t G t Then substitute it into the calculation formula In the process, the glue status value α corresponding to the glue storage container in the glue applicator is obtained, where T, D, and G are the set reference glue temperature, reference glue viscosity, and reference glue amount, respectively, and μ1, μ2, and μ3 are the set weighting factors corresponding to the glue temperature, glue viscosity, and glue amount, respectively.

[0019] Preferably, the determination of the glue status corresponding to the glue storage container in the glue applicator is specifically performed as follows: the glue status value corresponding to the glue storage container in the glue applicator is compared with a preset glue status value threshold. If the glue status value corresponding to the glue storage container in the glue applicator is greater than or equal to the glue status value threshold, the glue status corresponding to the glue storage container in the glue applicator is determined to be in a normal state; otherwise, the glue status corresponding to the glue storage container in the glue applicator is determined to be in an abnormal state.

[0020] Preferably, the specific analysis process for analyzing the suction status value corresponding to the suction pump inside the glue applicator is as follows: Extract the flow rate and temperature of the suction pump at each sampling time point from the status parameters of the suction pump inside the glue applicator at each sampling time point, and record them as Q. t T t ′, and then substitute into the calculation formula In the process, the suction status value β corresponding to the suction pump in the glue applicator is obtained, where Q and T′ are the set reference flow rate and reference temperature of the suction pump, respectively, and θ1 and θ2 are the set weighting factors corresponding to the suction pump flow rate and temperature, respectively.

[0021] Preferably, the specific determination process for judging the glue extraction status corresponding to the glue extraction pump in the glue applicator is as follows: compare the glue extraction status symbol value corresponding to the glue extraction pump in the glue applicator with a preset glue extraction status symbol value threshold. If the glue extraction status symbol value corresponding to the glue extraction pump in the glue applicator is greater than or equal to the glue extraction status symbol value threshold, then the glue extraction status corresponding to the glue extraction pump in the glue applicator is determined to be in a normal state; otherwise, the glue extraction status corresponding to the glue extraction pump in the glue applicator is determined to be in an abnormal state.

[0022] Preferably, the calculation process for the glue application compliance coefficient corresponding to the glue applicator is as follows: Extract the glue application beam spacing and glue application beam speed from the operating information of the glue application roller at each data collection time point in the glue applicator, and denote them as L. t v t Then substitute it into the calculation formula In the process, the glue application compliance coefficient δ corresponding to the glue application machine is obtained, where L and v are the set permissible glue application beam spacing and standard glue application beam speed, respectively, and σ1 and σ2 are the weighting factors corresponding to the set glue application beam spacing and glue application beam speed, respectively.

[0023] Preferably, the determination of the application state of the applicator is carried out as follows: the application compliance coefficient of the applicator is compared with a preset application compliance coefficient threshold. If the application compliance coefficient of the applicator is greater than or equal to the application compliance coefficient threshold, the application state of the applicator is determined to be in a normal state; otherwise, the application state of the applicator is determined to be in an abnormal state.

[0024] Secondly, the present invention provides a diagnostic system for interlocking and malfunctions of a gluing machine, comprising the following modules: a feeding monitoring module, used to collect basic information of the feeding pump and the status information of the feeding valve at each collection time point during the gluing process after the paper to be glued is put into the gluing machine, and the feeding machine applies glue to the paper to be glued, and sets up each collection time point at a preset time interval during the gluing process, thereby collecting the basic information of the feeding pump and the status information of the feeding valve at each collection time point, and then analyzing the safety values ​​corresponding to the feeding pump and the feeding valve, thereby determining the operating status of the feeding device in the gluing machine;

[0025] The glue monitoring module is used to collect glue information from the glue storage container in the glue applicator at various time points, and then analyze the glue status value corresponding to the glue storage container in the glue applicator to determine the glue status of the glue storage container in the glue applicator.

[0026] The glue extraction monitoring module is used to collect the status parameters of the glue extraction pump in the glue applicator at each collection time point, and then analyze the glue extraction status value of the glue extraction pump in the glue applicator and determine the glue extraction status of the glue extraction pump in the glue applicator.

[0027] The glue application monitoring module is used to collect the operating information of the glue application roller in the glue application machine at each collection time point, and then calculate the glue application compliance coefficient of the glue application machine and determine the glue application status of the glue application machine.

[0028] The early warning terminal is used to provide fault prompts when the operating status of the feeding device in the glue applicator is abnormal, the glue status of the glue storage container is abnormal, the glue extraction status of the glue pump is abnormal, or the glue application status of the glue applicator is abnormal.

[0029] The glue application interlock module is used to perform an interlock operation on the glue application machine when the glue storage container inside the glue application machine is in an abnormal state or the glue extraction pump inside the glue application machine is in a normal state.

[0030] The beneficial effects of this invention are as follows: This invention provides a method and system for diagnosing interlocks and faults in a glue applicator. By monitoring and analyzing the feeding device, glue, glue extraction, and glue application processes of the glue applicator during the glue application process, the status of the glue applicator during the glue application process is determined. Based on the status of the glue applicator during the glue application process, fault prompts and interlocks are provided. This solves the shortcomings of manual inspection by operators in traditional technologies, and realizes intelligent and automated monitoring and analysis of glue applicator interlocks and faults. This greatly improves the efficiency and effectiveness of glue applicator monitoring, while also reducing the cost and workload of manual inspection. To a certain extent, it also improves the reliability and reference value of glue applicator monitoring results, ensuring the smooth operation of the glue applicator, thereby greatly improving the production efficiency of the glue applicator. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the implementation steps of the method of the present invention.

[0033] Figure 2 This is a schematic diagram of the system structure connection of the present invention. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 As shown, in the first aspect, the present invention provides a method for diagnosing interlocks and faults of a gluing machine, comprising the following steps: Step 1, feeding monitoring: When the paper to be glued is put into the gluing machine, the gluing machine applies glue to the paper to be glued, and sets up various collection time points according to a preset time interval during the gluing process, thereby collecting the basic information of the feeding pump and the status information of the feeding valve at each collection time point, and then analyzing the safety values ​​corresponding to the feeding pump and the feeding valve, thereby determining the operating status of the feeding device in the gluing machine; if the operating status of the feeding device is in an abnormal state, then step 5 is executed.

[0036] The basic information collected at each time point of the feed pump mentioned above includes vibration frequency, noise level, and pressure.

[0037] It should be noted that a frequency meter, a noise sensor, and a pressure sensor are installed in the feeding pump. The frequency meter, noise sensor, and pressure sensor are then used to collect the vibration frequency, noise level, and pressure at each sampling time point of the feeding pump.

[0038] In the above, the status information of the feeding valve at each data collection point includes the on / off status and valve opening degree.

[0039] It should be noted that a status signal is installed in the feeding valve. The opening and closing status of the feeding valve at each acquisition time point is obtained based on the status signal of the feeding valve at each acquisition time point. The status signal includes open and closed. An electric opening meter is installed in the feeding valve to collect the valve opening at each acquisition time point.

[0040] In a specific embodiment, the analysis of the safety values ​​corresponding to the feeding pump and the feeding valve is carried out as follows: The vibration frequency, noise level, and pressure corresponding to each sampling time point of the feeding pump are extracted from the basic information collected at each sampling time point and labeled as f. t x t F t , where t represents the number corresponding to each collection time point, t=1,2......p, p is any integer greater than 2;

[0041] Based on the calculation formula Obtain the safety value corresponding to the feed pump. Where f, x, and F are the set reference vibration frequency, reference noise loudness, and reference pressure of the feed pump, respectively, and ε1, ε2, and ε3 are the set weighting factors corresponding to the vibration frequency, noise loudness, and pressure of the feed pump, respectively.

[0042] The on / off state and valve opening of the feeding valve at each data collection time point are extracted from its status information. If the feeding valve is closed at a given time point, the corresponding safety value is recorded as a1; if it is open at all data collection time points, the corresponding safety value is recorded as a2. This method is used to obtain the safety value of the feeding valve's on / off state. in The value can be either a1 or a2, and a1 < a2, where a1 and a2 are both constants;

[0043] The valve opening at each data collection time point is compared with a preset reference valve opening range. If the valve opening at a certain data collection time point is outside the preset reference valve opening range, the safe opening value of the valve is recorded as a3. If the valve opening at each data collection time point is within the preset reference valve opening range, the safe opening value of the valve is recorded as a4. This method is used to obtain the safe opening value of the valve. in The value can be either a3 or a4, and a3 < a4, where a3 and a4 are both constants;

[0044] According to the calculation formula Obtain the safety value corresponding to the feeding valve. Where γ1 and γ2 are the weighting factors corresponding to the set switch safety value and opening degree safety value, respectively.

[0045] In another specific embodiment, the determination of the operating status of the feeding device inside the glue applicator is specifically performed as follows: The safety value corresponding to the feeding pump is set... Safety value corresponding to the feeding valve Substitute into the calculation formula In this process, the safety value corresponding to the feeding device inside the glue applicator is obtained. Where γ3 and γ4 are the weighting factors corresponding to the set safety values ​​of the feeding pump and the feeding valve, respectively;

[0046] The safety value corresponding to the feeding device inside the glue applicator is compared with the preset safety value threshold of the feeding device. If the safety value corresponding to the feeding device inside the glue applicator is greater than or equal to the safety value threshold of the feeding device, the operating status of the feeding device inside the glue applicator is determined to be normal. Otherwise, the operating status of the feeding device inside the glue applicator is determined to be abnormal.

[0047] Step 2, Adhesive Monitoring: Collect adhesive information from the adhesive storage container inside the glue applicator at each collection time point, analyze the corresponding adhesive status value of the adhesive storage container inside the glue applicator, and then determine the adhesive status of the adhesive storage container inside the glue applicator. If the adhesive status of the adhesive storage container inside the glue applicator is abnormal, proceed to Step 5 and Step 6.

[0048] In the above, the glue information in the glue storage container inside the glue applicator at each collection time point includes glue temperature, glue viscosity, and glue volume.

[0049] It should be noted that a temperature sensor, a viscometer, and a level sensor are installed in the glue storage container inside the glue applicator. The temperature, viscosity, and amount of glue in the glue storage container inside the glue applicator are collected at various sampling points using the temperature sensor, viscometer, and level sensor.

[0050] In a specific embodiment, the analysis of the glue status value corresponding to the glue storage container inside the glue applicator is carried out as follows: The glue temperature, glue viscosity, and glue volume corresponding to each sampling time point in the glue storage container inside the glue applicator are extracted from the glue information at each sampling time point and denoted as T. t D t G t Then substitute it into the calculation formula In the process, the glue status value α corresponding to the glue storage container in the glue applicator is obtained, where T, D, and G are the set reference glue temperature, reference glue viscosity, and reference glue amount, respectively, and μ1, μ2, and μ3 are the set weighting factors corresponding to the glue temperature, glue viscosity, and glue amount, respectively.

[0051] In another specific embodiment, the determination of the glue status corresponding to the glue storage container in the glue applicator is specifically performed as follows: the glue status value corresponding to the glue storage container in the glue applicator is compared with a preset glue status value threshold. If the glue status value corresponding to the glue storage container in the glue applicator is greater than or equal to the glue status value threshold, the glue status corresponding to the glue storage container in the glue applicator is determined to be in a normal state; otherwise, the glue status corresponding to the glue storage container in the glue applicator is determined to be in an abnormal state.

[0052] Step 3: Glue extraction monitoring: Collect the status parameters of the glue extraction pump in the glue applicator at each collection time point, then analyze the glue extraction status value of the glue extraction pump in the glue applicator, and determine the glue extraction status of the glue extraction pump in the glue applicator. If the glue extraction status of the glue extraction pump in the glue applicator is in a normal state, then proceed to Step 5 and Step 6.

[0053] In the above, the status parameters of the glue pump in the glue applicator at each collection time point include flow rate and temperature.

[0054] It should be noted that a flow meter and a temperature sensor are installed in the glue pump inside the glue applicator, and the flow rate and temperature of the glue pump inside the glue applicator are collected at each sampling time point through the flow meter and temperature sensor.

[0055] In a specific embodiment, the analysis of the suction status value corresponding to the suction pump inside the glue applicator is carried out as follows: The flow rate and temperature of the suction pump at each sampling time point are extracted from the status parameters of the suction pump at each sampling time point and denoted as Q. t T t ′, and then substitute into the calculation formula In the process, the suction status value β corresponding to the suction pump in the glue applicator is obtained, where Q and T′ are the set reference flow rate and reference temperature of the suction pump, respectively, and θ1 and θ2 are the set weighting factors corresponding to the suction pump flow rate and temperature, respectively.

[0056] In another specific embodiment, the determination of the glue extraction status corresponding to the glue extraction pump in the glue applicator is specifically performed as follows: the glue extraction status symbol value corresponding to the glue extraction pump in the glue applicator is compared with a preset glue extraction status symbol value threshold. If the glue extraction status symbol value corresponding to the glue extraction pump in the glue applicator is greater than or equal to the glue extraction status symbol value threshold, then the glue extraction status corresponding to the glue extraction pump in the glue applicator is determined to be in a normal state; otherwise, the glue extraction status corresponding to the glue extraction pump in the glue applicator is determined to be in an abnormal state.

[0057] Step 4: Glue application monitoring: Collect the operating information of the glue application roller in the glue application machine at each collection time point, then calculate the glue application compliance coefficient of the glue application machine, and determine the glue application status of the glue application machine. If the glue application status of the glue application machine is in an abnormal state, proceed to step 5.

[0058] In the above, the operating information of the glue application roller in the glue application machine at each data collection time point includes the glue application beam spacing and the glue application beam speed.

[0059] It should be noted that the glue applicator is equipped with a miniature camera, which captures images of the glue applicator roller at various time points. The distance between the glue applicator roller and the glue applicator beam at each time point is then captured from the images and used as the distance between the glue applicator roller and the glue applicator beam at each time point. The glue applicator beam of the glue applicator roller is equipped with a speed sensor, which captures the speed of the glue applicator beam at each time point.

[0060] It should also be noted that the application beam is a structural component that supports the application roller. The function of the application beam is to fix the application roller in the appropriate position and provide stable support, thereby ensuring that the application roller can work normally. When the distance between the application roller and the application beam is too large, it will affect the application effect. Therefore, it is necessary to collect and analyze the distance between the application roller and the application beam.

[0061] In a specific embodiment, the calculation process for the glue application compliance coefficient corresponding to the glue application machine is as follows: The glue application beam spacing and glue application beam speed are extracted from the operating information of the glue application roller at each data collection time point in the glue application machine, and denoted as L, respectively. t v t Then substitute it into the calculation formula In the process, the glue application compliance coefficient δ corresponding to the glue application machine is obtained, where L and v are the set permissible glue application beam spacing and standard glue application beam speed, respectively, and σ1 and σ2 are the weighting factors corresponding to the set glue application beam spacing and glue application beam speed, respectively.

[0062] In another specific embodiment, the determination of the application state of the glue applicator is carried out as follows: the application compliance coefficient of the glue applicator is compared with a preset application compliance coefficient threshold. If the application compliance coefficient of the glue applicator is greater than or equal to the application compliance coefficient threshold, the application state of the glue applicator is determined to be in a normal state; otherwise, the application state of the glue applicator is determined to be in an abnormal state.

[0063] Step 5, Fault Prompt: When the operating status of the feeding device in the glue applicator is abnormal, the glue status of the glue storage container is abnormal, the glue extraction status of the glue pump is abnormal, or the glue application status of the glue applicator is abnormal, a fault prompt will be issued.

[0064] Step 6, Glue Application Interlock: When the glue status corresponding to the glue storage container in the glue applicator is in an abnormal state or the glue extraction status corresponding to the glue extraction pump in the glue applicator is in a normal state, perform an interlock operation on the glue applicator.

[0065] Please see Figure 2 As shown, in a second aspect, the present invention provides a diagnostic system for interlocking and malfunctions of a glue applicator, comprising the following modules: a material feeding monitoring module, a glue monitoring module, a glue extraction monitoring module, a glue application monitoring module, an early warning terminal, and a glue application interlocking module.

[0066] The feeding monitoring module is used to collect the basic information of the feeding pump and the status information of the feeding valve at each time point after the paper to be glued is put into the glue machine. Then, the module analyzes the safety values ​​of the feeding pump and the feeding valve to determine the operating status of the feeding device in the glue machine.

[0067] The glue monitoring module is used to collect glue information from the glue storage container in the glue applicator at various time points, and then analyze the glue status value corresponding to the glue storage container in the glue applicator to determine the glue status of the glue storage container in the glue applicator.

[0068] The glue extraction monitoring module is used to collect the status parameters of the glue extraction pump in the glue applicator at each collection time point, and then analyze the glue extraction status value of the glue extraction pump in the glue applicator and determine the glue extraction status of the glue extraction pump in the glue applicator.

[0069] The glue application monitoring module is used to collect the operating information of the glue application roller in the glue application machine at each collection time point, and then calculate the glue application compliance coefficient of the glue application machine and determine the glue application status of the glue application machine.

[0070] The early warning terminal is used to provide fault prompts when the operating status of the feeding device in the glue applicator is abnormal, the glue status of the glue storage container is abnormal, the glue extraction status of the glue pump is abnormal, or the glue application status of the glue applicator is abnormal.

[0071] The glue application interlock module is used to perform an interlock operation on the glue application machine when the glue storage container inside the glue application machine is in an abnormal state or the glue extraction pump inside the glue application machine is in a normal state.

[0072] This invention monitors and analyzes the feeding device, glue, glue extraction, and glue application processes of a glue applicator during the glue application process. It determines the status of the glue applicator during this process and, based on this status, provides fault alerts and interlocks. This overcomes the shortcomings of manual operator inspection in traditional technologies, achieving intelligent and automated monitoring and analysis of glue applicator interlocks and faults. This significantly improves the efficiency and effectiveness of glue applicator monitoring while reducing the cost and workload of manual inspection. It also enhances the reliability and reference value of the monitoring results, ensuring smooth operation of the glue applicator and thus greatly improving its production efficiency.

[0073] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. A method for diagnosing interlocking and malfunctions of a glue applicator, characterized in that, Includes the following steps: Step 1, Material Feeding Monitoring: After the paper to be glued is placed into the glue applicator, the glue applicator applies glue to the paper and sets up various data collection points at preset time intervals during the glue application process. This collects the basic information of the feeding pump and the status information of the feeding valve at each data collection point. Then, the safety values ​​of the feeding pump and the feeding valve are analyzed to determine the operating status of the feeding device in the glue applicator. If the operating status of the feeding device is abnormal, proceed to Step 5. Step 2, Adhesive Monitoring: Collect adhesive information from the adhesive storage container inside the glue applicator at each collection time point, analyze the corresponding adhesive status value of the adhesive storage container inside the glue applicator, and then determine the adhesive status of the adhesive storage container inside the glue applicator. If the adhesive status of the adhesive storage container inside the glue applicator is abnormal, proceed to Step 5 and Step 6. Step 3: Glue extraction monitoring: Collect the status parameters of the glue extraction pump in the glue applicator at each collection time point, then analyze the glue extraction status value of the glue extraction pump in the glue applicator, and determine the glue extraction status of the glue extraction pump in the glue applicator. If the glue extraction status of the glue extraction pump in the glue applicator is in a normal state, then proceed to Step 5 and Step 6. Step 4: Glue application monitoring: Collect the operating information of the glue application roller in the glue application machine at each collection time point, then calculate the glue application compliance coefficient of the glue application machine, and determine the glue application status of the glue application machine. If the glue application status of the glue application machine is in an abnormal state, proceed to step 5. Step 5, Fault Prompt: When the operating status of the feeding device in the glue applicator is abnormal, the glue status of the glue storage container is abnormal, the glue extraction status of the glue pump is abnormal, or the glue application status of the glue applicator is abnormal, a fault prompt will be issued. Step 6, Glue application interlock: When the glue status corresponding to the glue storage container in the glue applicator is in an abnormal state or the glue extraction status corresponding to the glue extraction pump in the glue applicator is in a normal state, perform an interlock operation on the glue applicator. The analysis of the safety values ​​corresponding to the feed pump and feed valve is as follows: The vibration frequency, noise level, and pressure corresponding to each data collection time point of the feeding pump were extracted from the basic information of the feeding pump and labeled as follows: , , , where t represents the number corresponding to each collection time point, t=1,2......p, and p is any integer greater than 2; Based on the calculation formula Obtain the safety value corresponding to the feed pump. Where f, x, and F are the set reference vibration frequency, reference noise level, and reference pressure of the feed pump, respectively. , , These are the weighting factors corresponding to the set vibration frequency, noise level, and pressure of the feed pump, respectively. The on / off state and valve opening of the feeding valve at each data collection time point are extracted from its status information. If the feeding valve is closed at a given time point, the corresponding safety value is recorded as a1; if it is open at all data collection time points, the corresponding safety value is recorded as a2. This method is used to obtain the safety value of the feeding valve's on / off state. ,in The value can be either a1 or a2, and a1 < a2, where a1 and a2 are both constants; The valve opening at each data collection time point is compared with a preset reference valve opening range. If the valve opening at a certain data collection time point is outside the preset reference valve opening range, the safe opening value of the valve is recorded as a3. If the valve opening at each data collection time point is within the preset reference valve opening range, the safe opening value of the valve is recorded as a4. This method is used to obtain the safe opening value of the valve. ,in The value can be either a3 or a4, and a3 < a4, where a3 and a4 are both constants; According to the calculation formula Obtain the safety value corresponding to the feeding valve. ,in , These are the weighting factors corresponding to the set switch safety value and opening degree safety value, respectively; The analysis process for the glue status code value corresponding to the glue storage container inside the glue applicator is as follows: Extract the glue temperature, viscosity, and amount of glue from the glue storage container inside the glue applicator at each sampling time point, and record them as follows: , , Then substitute it into the calculation formula In the process, the glue status symbol value corresponding to the glue storage container inside the glue applicator is obtained. Where T, D, and G are the set reference glue temperature, reference glue viscosity, and reference glue amount, respectively. , , These are the weighting factors corresponding to the set glue temperature, glue viscosity, and glue amount, respectively. The analysis process for the glue extraction status value corresponding to the glue extraction pump inside the glue applicator is as follows: The flow rate and temperature of the glue pump inside the glue applicator at each sampling time point were extracted from the status parameters of the pump at each sampling time point and recorded as follows: , Then substitute it into the calculation formula In the process, the suction status symbol value corresponding to the suction pump inside the glue applicator is obtained. Q, These are the set reference flow rate and reference temperature for the glue extraction pump. , These are the weighting factors corresponding to the set glue pump flow rate and temperature, respectively; The calculation process for the application compliance coefficient corresponding to the application machine is as follows: The spacing and speed of the application beams were extracted from the operating information of the application rollers at each data collection point in the application machine, and denoted as follows: , Then substitute it into the calculation formula In the process, the application compliance coefficient corresponding to the application machine is obtained. Where L and v are the set permissible gluing beam spacing and standard gluing beam speed, respectively. , These are the weighting factors corresponding to the set gluing beam spacing and gluing beam speed, respectively.

2. The method for diagnosing interlocking and malfunctions of a glue applicator according to claim 1, characterized in that, The specific process for determining the operating status of the feeding device inside the glue applicator is as follows: The safety value corresponding to the feed pump Safety values ​​corresponding to the feeding valve Substitute into the calculation formula In this process, the safety value corresponding to the feeding device inside the glue applicator is obtained. ,in , These are the weighting factors corresponding to the set safety values ​​for the feed pump and the feed valve, respectively. The safety value corresponding to the feeding device inside the glue applicator is compared with the preset safety value threshold of the feeding device. If the safety value corresponding to the feeding device inside the glue applicator is greater than or equal to the safety value threshold of the feeding device, the operating status of the feeding device inside the glue applicator is determined to be normal. Otherwise, the operating status of the feeding device inside the glue applicator is determined to be abnormal.

3. The method for diagnosing interlocking and malfunctions of a glue applicator according to claim 1, characterized in that, The specific process for determining the glue status corresponding to the glue storage container inside the glue applicator is as follows: The glue status value corresponding to the glue storage container inside the glue applicator is compared with a preset glue status value threshold. If the glue status value corresponding to the glue storage container inside the glue applicator is greater than or equal to the glue status value threshold, the glue status corresponding to the glue storage container inside the glue applicator is determined to be in a normal state; otherwise, the glue status corresponding to the glue storage container inside the glue applicator is determined to be in an abnormal state.

4. The method for diagnosing interlocking and malfunctions of a glue applicator according to claim 1, characterized in that, The specific process for determining the suction status of the suction pump in the glue applicator is as follows: The suction status symbol value of the suction pump in the glue applicator is compared with a preset suction status symbol value threshold. If the suction status symbol value of the suction pump in the glue applicator is greater than or equal to the suction status symbol value threshold, the suction status of the suction pump in the glue applicator is determined to be in a normal state; otherwise, the suction status of the suction pump in the glue applicator is determined to be in an abnormal state.

5. The method for diagnosing interlocking and malfunctions of a glue applicator according to claim 1, characterized in that, The specific process for determining the application status of the glue applicator is as follows: the glue application compliance coefficient of the glue applicator is compared with a preset glue application compliance coefficient threshold. If the glue application compliance coefficient of the glue applicator is greater than or equal to the glue application compliance coefficient threshold, the glue application status of the glue applicator is determined to be in a normal state; otherwise, the glue application status of the glue applicator is determined to be in an abnormal state.

6. A system for diagnosing interlocking and faults of a glue applicator, comprising the method for diagnosing interlocking and faults of a glue applicator according to any one of claims 1-5, characterized in that, Includes the following modules: The feeding monitoring module is used to collect the basic information of the feeding pump and the status information of the feeding valve at each time point after the paper to be glued is put into the glue machine. Then, the module analyzes the safety values ​​of the feeding pump and the feeding valve to determine the operating status of the feeding device in the glue machine. The glue monitoring module is used to collect glue information from the glue storage container in the glue applicator at various time points, and then analyze the glue status value corresponding to the glue storage container in the glue applicator to determine the glue status of the glue storage container in the glue applicator. The glue extraction monitoring module is used to collect the status parameters of the glue extraction pump in the glue applicator at each collection time point, and then analyze the glue extraction status value of the glue extraction pump in the glue applicator and determine the glue extraction status of the glue extraction pump in the glue applicator. The glue application monitoring module is used to collect the operating information of the glue application roller in the glue application machine at each collection time point, and then calculate the glue application compliance coefficient of the glue application machine and determine the glue application status of the glue application machine. The early warning terminal is used to provide fault prompts when the operating status of the feeding device in the glue applicator is abnormal, the glue status of the glue storage container is abnormal, the glue extraction status of the glue pump is abnormal, or the glue application status of the glue applicator is abnormal. The glue application interlock module is used to perform an interlock operation on the glue application machine when the glue storage container inside the glue application machine is in an abnormal state or the glue extraction pump inside the glue application machine is in a normal state.

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