Packaging bag production management system, method and device with easy-to-uncover function

By introducing heat sealing equipment operation opening control, initial adjustment, random inspection and compensation adjustment modules in the packaging bag production management system, the problems of unstable heat sealing quality and easy-to-excuse poor performance in packaging bag production are solved, and more efficient and scientific production management is achieved, ensuring the stability of the heat sealing process and the improvement of product performance.

CN119795666AInactive Publication Date: 2025-04-11HUIZHOU LIANXING COLOR PRINTING & PACKAGING CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202510074780.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-04-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The lack of systematic control during the production process of existing packaging bags leads to unstable heat seal quality, poor performance, and inaccurate monitoring of equipment operating status, and inflexible resource allocation, which reduces the accuracy and timeliness of production management.

Method used

It provides a packaging bag production management system with easy-to-removal function, including a heat seal equipment operation opening control module, a heat seal process parameter initial adjustment module, a heat seal packaging bag sampling module and a heat seal process parameter compensation and adjustment module. By analyzing the action stability index of the heat seal knife, collecting test heat seal quality data, performing equipment status evaluation and quality compensation adjustment, we ensure the stability of the heat seal quality and the improvement of the easy-to-removal performance.

Benefits of technology

By accurately controlling the heat sealing equipment and process parameters, the stability of the heat sealing quality and the easy-to-reveal performance of the packaging bag are improved, the scientificity and efficiency of production management are improved, and the stability of the heat sealing process and the consistency of product performance are ensured.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119795666A_ABST
    Figure CN119795666A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of packaging bag production management, and particularly discloses a packaging bag production management system, method and device with an easy-to-uncover function, and the system comprises a heat-sealing equipment operation starting control module, a heat-sealing process parameter initial adjustment module, a heat-sealing packaging bag sampling inspection module and a heat-sealing process parameter compensation module. The motion stability index of the heat-sealing cutter is analyzed through preheating idling, stable operation of equipment is ensured, the heat-sealing quality problem caused by instability of the heat-sealing cutter is avoided, process parameter initial adjustment is conducted based on heat-sealing test data, heat-sealing parameters are accurately optimized according to the quality deviation coefficient, the heat-sealing quality and the easy-to-uncover capacity are improved, and the production efficiency is improved. And compensation adjustment is carried out in combination with equipment basic state evaluation indexes, the conditions of equipment aging, performance changes and the like are effectively handled, it is ensured that the heat sealing quality always meets the requirements, the scientificity and high efficiency of production management are improved, and the stability of the packaging bag heat sealing process and the consistency of the packaging bag performance after heat sealing are guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of packaging bag production management, and in particular to a packaging bag production management system, method and device with an easy-to-open function. Background Art

[0002] As an indispensable protection and carrier medium for various products, the functionality of packaging bags has attracted much attention. However, the existing packaging bag production process lacks systematic control over the easy-to-open characteristics. Key links such as heat sealing process mostly rely on experience-based operations, and it is difficult to accurately control the many parameters that affect the easy-to-open force, such as heat sealing temperature, pressure, time, cooling conditions, and material surface properties. This can easily lead to unstable easy-to-open performance of packaging bags and uneven product quality, which hinders the improvement of production efficiency.

[0003] For example, the invention patent with announcement number CN118278827B announces a pipe production equipment management method and system based on plastic pipe quality inspection. The method includes: information acquisition: obtaining plastic pipe production raw material information, real-time quality inspection information and basic production information, and obtaining pipe production equipment information. The production equipment information includes production equipment and its adjustable variable items; information processing: using a numbering method to perform sub-numbering on the production equipment to obtain parent number information and sub-number equipment.

[0004] For example, the invention patent with announcement number CN113128972B announces an intelligent production management system for medical packaging bags, including an image acquisition module, an equipment information acquisition module, a scoring calculation module, a yield preset module, a yield acquisition module, a master control module and an information sending module; the image acquisition module is used to collect image information at the production equipment, and the equipment information acquisition module is used to collect equipment information, and the equipment information includes equipment operating time information and equipment fault information; the production equipment information is sent to the scoring calculation module, and the scoring calculation module is used to set a preset total score and calculate the final equipment score; the yield preset module is used to set a preset yield and obtain preset yield information.

[0005] However, in the process of implementing the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0006] During the production process of packaging bags, various types of data change frequently in real time. Traditional production management methods usually only conduct corresponding production monitoring during the actual production process. Packaging production usually requires a large amount of equipment resources and material information. Monitoring only during actual production often cannot timely suppress the risk problems existing in production, which can easily lead to unstable heat sealing quality, insufficient heat sealing strength or poor ease of opening. At the same time, the monitoring of equipment operation status is inaccurate, and resources cannot be flexibly allocated according to the actual production situation, which reduces the accuracy and timeliness of packaging bag production management. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a packaging bag production management system, method and device with an easy-to-open function, which can effectively solve the problems involved in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: In a first aspect, the present invention provides a packaging bag production management system with an easy-to-open function, comprising:

[0009] The heat sealing equipment operation start control module is used to start the heat sealing equipment preheating program, and perform an idling operation after the preheating is completed, analyze the heat sealing knife action stability index, and thus control the heat sealing equipment to start operation.

[0010] The heat sealing process parameter initial adjustment module is used to extract the number of trial heat-sealed packaging bags, conduct trial heat sealing of packaging bags, collect trial heat-sealing quality data of packaging bags, and thereby perform initial adjustment of the heat-sealing process parameters of packaging bags through analysis.

[0011] The heat-sealed packaging bag sampling inspection module is used to notify the management center to receive the initial adjustment completion information, start the normal heat sealing of the packaging bags, obtain the number of heat-sealed packaging bags and the operating parameters of the heat-sealing equipment, so as to determine the number of heat-sealed packaging bags for sampling inspection, and record the sampled heat-sealed packaging bags as the sampling heat-sealed packaging bags.

[0012] The heat sealing process parameter compensation module is used to obtain the basic data of the heat sealing equipment, analyze the basic status evaluation indicators of the heat sealing equipment, simultaneously collect the heat sealing quality data of each sampled heat-sealed packaging bag, analyze the heat sealing quality scores of the sampled packaging bags, and combine the basic status evaluation indicators of the heat sealing equipment to compensate and adjust the heat sealing process parameters of the packaging bag production.

[0013] A second aspect of the present invention provides a production management method for packaging bags with an easy-to-open function, comprising:

[0014] S1, start the preheating program of the heat sealing equipment, and perform an idling operation after the preheating is completed, analyze the heat sealing knife action stability index, and thus control the heat sealing equipment to start operation.

[0015] S2, extracting the number of packaging bags that have been heat-sealed for trial, and conducting trial heat-sealing for the packaging bags, collecting the quality data of the trial heat-sealing for the packaging bags, thereby performing initial adjustment on the heat-sealing process parameters of the packaging bags through analysis.

[0016] S3, notifies the management center to receive the initial adjustment completion information, starts normal heat sealing of the packaging bags, obtains the number of heat-sealed packaging bags and the operating parameters of the heat-sealing equipment, thereby determining the number of heat-sealed packaging bags for random inspection, and records the heat-sealed packaging bags sampled as the heat-sealed packaging bags for random inspection.

[0017] S4, obtain the basic data of heat sealing equipment, analyze the basic status evaluation indicators of heat sealing equipment, simultaneously collect the heat sealing quality data of each sampled heat-sealed packaging bag, analyze the heat sealing quality score of the sampled packaging bags, and combine the basic status evaluation indicators of heat sealing equipment to make compensatory adjustments to the heat sealing process parameters of packaging bag production.

[0018] The third aspect of the present invention provides a packaging bag production management device with an easy-to-open function, comprising: a processor, and a memory and a network interface connected to the processor: the network interface is connected to a non-volatile memory in a server; when the processor is running, it retrieves a computer program from the non-volatile memory through the network interface, and runs the computer program through the memory to implement a packaging bag production management method with an easy-to-open function.

[0019] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0020] (1) The present invention provides a packaging bag production management system, method and device with an easy-to-open function. In the heat sealing link, the heat sealing knife action stability index is analyzed by preheating and idling to ensure the stable operation of the equipment, avoid the heat sealing quality problems caused by the instability of the heat sealing knife, perform initial adjustment of process parameters based on test heat sealing data, accurately optimize heat sealing parameters according to the quality deviation coefficient, improve heat sealing quality and easy-to-open capability, determine the sampling ratio according to the characteristic parameters of the equipment operation status, reasonably sample and analyze the sampling quality score, and make compensation adjustments in combination with the basic status evaluation indicators of the equipment, effectively deal with equipment aging, performance changes, etc., and ensure that the heat sealing quality always meets the requirements. The scientificity and efficiency of production management are improved, and the stability of the heat sealing process of the packaging bag and the consistency of the performance of the packaging bag after heat sealing are guaranteed.

[0021] (2) The present invention controls the operation and start of the heat sealing equipment by analyzing the heat sealing knife action stability index. The heat sealing knife action stability index accurately represents the stability of the heat sealing knife. When the stability index is greater than a preset threshold, the equipment is started to operate, which can effectively prevent the heat sealing knife from working in an unstable state, and prevent problems such as inaccurate heat sealing position due to large displacement deviation, uneven heat sealing process due to speed fluctuation, excessive vibration amplitude affecting heat sealing pressure stability, and inconsistent heat sealing quality due to pressure fluctuation. Therefore, the stability and accuracy of the heat sealing process are ensured, the heat sealing quality is improved, the packaging bag is easy to open due to poor heat sealing, and the poor performance is reduced, the scrap rate is reduced, the production efficiency is improved, and the efficient and stable operation of the entire production process is guaranteed.

[0022] (3) The present invention collects the trial heat-sealing quality data of the packaging bags, analyzes and initially adjusts the heat-sealing process parameters of the packaging bags, and can quickly and specifically respond to quality problems arising during the trial heat-sealing process, optimize the heat-sealing parameters in a timely manner, improve the accuracy and efficiency of the adjustment, reduce unnecessary waste of resources, and provide an accurate numerical basis for the heat-sealing quality of subsequent formal production.

[0023] (4) The present invention dynamically adjusts the heat-sealing process parameters by compensating and adjusting the heat-sealing process parameters in the production of packaging bags and comprehensively analyzing the equipment status and actual production quality. It can correct the heat-sealing quality deviation in the production process in real time, improve the consistency and stability of product quality, reduce the defective rate caused by poor heat sealing, extend the service life of the equipment, and improve the adaptability and reliability of the entire production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0025] Figure 1 It is a schematic diagram of system module connection of the present invention.

[0026] Figure 2 The figure is a schematic flow chart of the method steps of the present invention. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 As shown, the first aspect of the present invention provides a packaging bag production management system with an easy-to-open function, comprising:

[0029] The heat sealing equipment operation start control module is used to start the heat sealing equipment preheating program, and perform an idling operation after the preheating is completed, analyze the heat sealing knife action stability index, and thus control the heat sealing equipment to start operation.

[0030] In this embodiment, the heat sealing knife action stability index is analyzed to control the operation and start of the heat sealing equipment. The specific analysis process is as follows:

[0031] Start the preheating procedure of the heat sealing equipment and perform an idling run after the preheating is completed.

[0032] The operating parameters of the heat sealing knife are collected, including the average displacement deviation of the heat sealing knife, the extreme value difference of the heat sealing knife speed fluctuation, the maximum vibration amplitude of the heat sealing knife and the extreme value difference of the heat sealing knife pressure fluctuation.

[0033] It should be understood that the average displacement deviation value of the heat sealing knife can be collected using a high-precision displacement sensor. The smaller the average displacement deviation of the heat sealing knife, the better the stability of the heat sealing knife during operation. If the displacement deviation is large, the heat sealing knife may experience unstable phenomena such as shaking and offset, which will directly affect the heat sealing quality.

[0034] The running speed of the heat sealing knife can be monitored by a speed sensor installed on the heat sealing knife driving device. The speed sensor can be a rotary encoder or a linear speed sensor, etc., which can measure the speed of the heat sealing knife in real time during the idling operation of the heat sealing equipment. The speed sensor continuously collects the speed data of the heat sealing knife to obtain the maximum and minimum speed values, thereby obtaining the extreme value difference of the heat sealing knife speed fluctuation.

[0035] The vibration of the heat sealing knife is measured by using an acceleration sensor. The acceleration sensor is installed on the heat sealing knife or a fixed component near it. It can collect the vibration acceleration of the heat sealing knife during operation. By integrating and processing the acceleration signal, the vibration displacement of the heat sealing knife, that is, the vibration amplitude, can be obtained. During measurement, when the heat sealing equipment is in an idling state, the acceleration sensor collects vibration data over a period of time to obtain the maximum vibration amplitude of the heat sealing knife.

[0036] The pressure applied by the heat sealing knife is measured by installing a pressure sensor at the contact point between the heat sealing knife and the packaging bag, thereby obtaining the extreme difference of the heat sealing knife pressure fluctuation.

[0037] It should also be noted that when the average displacement deviation value of the heat sealing knife increases, the movement trajectory of the heat sealing knife deviates from the normal path, which may cause it to collide with other parts or intensify friction, thereby increasing the speed fluctuation extreme value difference. At the same time, it will also cause greater vibration due to uneven force, causing the maximum vibration amplitude to rise, and due to the change in contact state, the pressure fluctuation extreme value difference will also increase. If the heat sealing knife speed fluctuation extreme value difference increases, the instability of the heat sealing knife movement will increase, which may further destroy its movement trajectory, increase the displacement deviation value, and the sudden change in speed will produce impact force, causing greater vibration, resulting in an increase in the maximum vibration amplitude. The unstable speed will cause abnormal heat transfer and material deformation during the heat sealing process, and increase the pressure fluctuation extreme value difference. When the maximum vibration amplitude of the heat sealing knife increases, it will interfere with the normal movement of the heat sealing knife, increase the displacement deviation value, and the impact force generated by the vibration will affect the speed stability, causing the speed fluctuation extreme value difference to increase. It will also cause the contact pressure between the heat sealing knife and the packaging bag to be unstable, which increases the pressure fluctuation extreme value difference. Once the extreme value difference of the heat sealing knife pressure fluctuation becomes larger, the uneven pressure will affect the smoothness of the heat sealing knife movement, resulting in an increase in the displacement deviation value. The resistance change caused by the pressure change will increase the extreme value difference of the speed fluctuation. The stress change caused by the pressure fluctuation will also stimulate greater vibration, causing the maximum vibration amplitude to increase.

[0038] The heat sealing knife reference operation motion parameters stored in the database are extracted, including the heat sealing knife reference displacement deviation value, the heat sealing knife reference speed fluctuation extreme value difference, the heat sealing knife reference maximum vibration amplitude and the heat sealing knife reference pressure fluctuation extreme value difference.

[0039] The heat sealing knife motion stability index is obtained by analyzing and processing the heat sealing knife motion parameters, and the heat sealing knife motion stability index is used to characterize the stability of the heat sealing knife when the heat sealing equipment is running idle.

[0040] In a specific embodiment, the heat sealing knife action stability index is obtained in the following specific method:

[0041]

[0042] Among them, A is the heat sealing knife action stability index, a is the average displacement deviation value of the heat sealing knife, b is the extreme value difference of the heat sealing knife speed fluctuation, c is the maximum vibration amplitude of the heat sealing knife, d is the extreme value difference of the heat sealing knife pressure fluctuation, a0 is the reference displacement deviation value of the heat sealing knife, b0 is the reference speed fluctuation extreme value difference of the heat sealing knife, c0 is the reference maximum vibration amplitude of the heat sealing knife, d0 is the reference pressure fluctuation extreme value difference of the heat sealing knife, λ1 is the displacement deviation value weight, λ2 is the speed fluctuation extreme value difference weight, λ3 is the maximum vibration amplitude weight, and λ4 is the pressure fluctuation extreme value difference weight.

[0043] It should be noted that the displacement deviation value weight, speed fluctuation extreme value difference weight, maximum vibration amplitude weight and pressure fluctuation extreme value difference weight are all in the range of 0-1. When used, the preset values ​​can be directly extracted from the database. The extraction method is, for example: by constructing a mapping set one by one with the heat sealing knife average displacement deviation value, heat sealing knife speed fluctuation extreme value difference, heat sealing knife maximum vibration amplitude and heat sealing knife pressure fluctuation extreme value difference and displacement deviation value weight, speed fluctuation extreme value difference weight, maximum vibration amplitude weight and pressure fluctuation extreme value difference weight, and when used, the real-time detected heat sealing knife average displacement deviation value, heat sealing knife speed fluctuation extreme value difference, heat sealing knife maximum vibration amplitude and heat sealing knife pressure fluctuation extreme value difference are input into the mapping set, so as to extract the displacement deviation value weight, speed fluctuation extreme value difference weight, maximum vibration amplitude weight and pressure fluctuation extreme value difference weight.

[0044] It should be noted that the heat sealing knife action stability index is obtained based on the analysis and processing of the heat sealing knife operation parameters. This takes into account the mutual influence between the heat sealing knife operation parameters. By comprehensively analyzing the heat sealing knife operation parameters, the heat sealing knife operation status can be accurately analyzed to ensure the subsequent efficient and stable operation of the heat sealing equipment.

[0045] Extract the heat sealing knife action stability threshold preset in the database.

[0046] If the heat sealing knife stability index is less than or equal to the heat sealing knife action stability threshold, a warning prompt message is generated and uploaded as a reminder.

[0047] If the heat sealing knife stability index is less than or equal to the heat sealing knife action stability threshold, it means that the current operating condition of the heat sealing knife is relatively unstable, the heat sealing effect cannot meet the standard requirements, and the consistency of the heat sealing parts is not high, which may lead to a significant reduction in the heat sealing quality and fail to meet production needs. Therefore, the system will quickly generate an early warning prompt message and upload it to the relevant monitoring platform in time to issue an early warning to the operator, reminding him to immediately pay attention to the abnormal condition of the heat sealing knife.

[0048] If the heat sealing knife stability index is greater than the heat sealing knife action stability threshold, a heat sealing device operation start signal is generated, and the heat sealing device operation start is controlled.

[0049] If the heat sealing knife stability index is greater than the heat sealing knife action stability threshold, it means that all operating parameters of the heat sealing knife are in an ideal stable state and the heat sealing process can be carried out smoothly. Therefore, a heat sealing equipment operation start signal is generated, and the heat sealing equipment is accurately controlled to start running smoothly, thereby starting an efficient production process.

[0050] The heat sealing process parameter initial adjustment module is used to extract the number of trial heat-sealed packaging bags, conduct trial heat sealing of packaging bags, collect trial heat-sealing quality data of packaging bags, and thereby perform initial adjustment of the heat-sealing process parameters of packaging bags through analysis.

[0051] In this embodiment, the heat sealing process parameters of the packaging bag are initially adjusted by analysis, and the specific analysis process is as follows:

[0052] The number of trial heat-sealed packaging bags preset in the database is extracted, and trial heat-sealing of the packaging bags is performed accordingly, and the trial heat-sealed packaging bags are recorded as trial heat-sealed packaging bags.

[0053] Get the test heat seal quality data of the packaging bag. The specific method is as follows:

[0054] The heat sealing data of each test heat-sealed packaging bag are collected, including the tearing force, heat seal peeling force, heat seal edge roughness and surface friction of the heat seal part material of each test heat-sealed packaging bag.

[0055] It should be understood that the tearing force can be measured using high-precision tensile testing equipment such as an electronic tensile testing machine to record the force changes during the stretching process of the packaging bag, and the force at the moment the packaging bag is torn is recorded as the tearing force.

[0056] The heat seal peel force can be measured by a peel tester. The tester measures and records the force value in real time during the peeling process. The average force value finally obtained is the heat seal peel force.

[0057] The roughness of the heat seal edge can be measured by an optical profilometer or an atomic force microscope. The instrument outputs the roughness by scanning the microscopic morphology of the edge surface.

[0058] The surface friction of the material at the heat-sealed part can be measured using a special friction coefficient tester. Common friction coefficient testers include horizontal traction friction coefficient testers and pendulum friction coefficient testers.

[0059] It should be noted that the tearing force mainly reflects the overall tearing resistance of the packaging bag material and the bonding strength between the heat-sealed part and the surrounding materials. It is affected by a variety of factors such as the type, thickness, structure and heat-sealing process of the material. The heat-seal peeling force focuses on the adhesion characteristics between the two layers of material at the heat-seal part.

[0060] It should also be noted that, in the specific embodiment, the heat sealing data of each heat-sealed packaging bag are closely influenced by each other. When the heat sealing peeling force increases, it often means that the bond between the two layers of materials at the heat sealing part is tighter, which may lead to an increase in the tearing force, because a greater force is required to overcome the stronger bonding force to tear the packaging bag. At the same time, the roughness of the heat sealing edge may change due to excessive melting or extrusion of the material during the heat sealing process. If the heat sealing peeling force is too large, the heat sealing edge material is severely deformed, and the heat sealing edge roughness may increase, and the surface friction of the material at the heat sealing part may also be affected. If the heat sealing changes the surface state of the material (such as becoming smoother or rougher), the friction will change accordingly. If the heat sealing causes the material surface to be smoother, the friction may decrease, and vice versa. When the heat sealing edge roughness increases, the force distribution during the tearing process will be uneven, which may increase the tearing force, and the rough edge may increase the friction with other materials during tearing, so that the surface friction of the material at the heat sealing part increases. When the friction force on the surface of the material at the heat-sealed part increases, it will increase the difficulty of tearing open the packaging bag, increase the tearing force, and may affect the relative sliding of the material during the heat-sealing process, which will have a certain impact on the heat-sealing peeling force. If the friction force is too large, it will hinder the close fitting of the material during heat sealing, which may reduce the heat-sealing peeling force.

[0061] The heat sealing data of each test heat-sealed packaging bag are averaged to obtain the test heat sealing quality data of the packaging bag. The test heat sealing quality data of the packaging bag include the average tearing force of the test heat-sealed packaging bag, the average heat sealing peeling force, the average roughness of the heat sealing edge and the average friction of the material surface at the heat sealing part.

[0062] The reference heat seal quality data of the packaging bag stored in the database are extracted, including the reference average tear force, the ideal average heat seal peel force, the average roughness of the ideal heat seal edge and the average friction of the material surface at the ideal heat seal location.

[0063] The test heat sealing quality characteristic index of the packaging bag is obtained according to the analysis and processing of the test heat sealing quality data of the packaging bag, and the test heat sealing quality characteristic index of the packaging bag is used to characterize the heat sealing quality and the ease of opening of the test heat sealed packaging bag.

[0064] In a specific embodiment, the specific method for obtaining the heat seal quality characteristic index of the packaging bag is as follows:

[0065]

[0066] Among them, B is the quality characteristic index of the trial heat seal of the packaging bag, f is the average tearing force of the trial heat seal packaging bag, g is the average heat seal peeling force of the trial heat seal packaging bag, h is the average roughness of the heat seal edge of the trial heat seal packaging bag, p is the average friction of the material surface of the heat seal part of the trial heat seal packaging bag, f0 is the reference average tearing force, g0 is the ideal average heat seal peeling force, h0 is the ideal average roughness of the heat seal edge, p0 is the average friction of the material surface of the ideal heat seal part, y1 is the weight of the average tearing force, y2 is the weight of the average heat seal peeling force, y3 is the weight of the average roughness of the heat seal edge, y4 is the weight of the average friction of the material surface of the heat seal part, and e is a natural constant.

[0067] It should be noted that the average tear force weight, the average heat seal peel force weight, the average roughness of the heat seal edge and the average friction weight of the material surface of the heat seal part can be directly extracted from the database. The extraction method is, for example: the average tear force, the average heat seal peel force, the average roughness of the heat seal edge and the average friction weight of the material surface of the heat seal part are respectively constructed into a mapping set with their corresponding weights. When used, the average tear force, the average heat seal peel force, the average roughness of the heat seal edge and the average friction weight of the material surface of the heat seal part collected in real time are input into the corresponding mapping set, so as to extract the average tear force weight, the average heat seal peel force weight, the average roughness of the heat seal edge and the average friction weight of the material surface of the heat seal part. The value ranges of the average tear force weight, the average heat seal peel force weight, the average roughness of the heat seal edge and the average friction weight of the material surface of the heat seal part are all 0-1.

[0068] It should be noted that the characteristic indicators of the test heat seal quality of packaging bags are obtained by analyzing and processing the test heat seal quality data of packaging bags. The mutual influence between the test heat seal quality data of packaging bags is taken into consideration. By comprehensively analyzing the test heat seal quality data of packaging bags, the accuracy and scientificity of the evaluation of the test heat seal quality and ease of opening ability of packaging bags can be improved.

[0069] Extract the packaging bag test heat seal quality verification indicators preset in the database.

[0070] The quality characteristic index of the packaging bag trial heat seal and the quality verification index of the packaging bag trial heat seal are processed by difference to obtain the quality deviation coefficient of the packaging bag trial heat seal.

[0071] The collection of heat sealing process parameter adjustment values ​​corresponding to each quality deviation coefficient interval stored in the database is extracted, and the collection of heat sealing process parameter adjustment values ​​corresponding to the interval in which the packaging bag trial heat sealing quality deviation coefficient is located is mapped and extracted, and recorded as the collection of heat sealing process parameter adjustment values ​​for packaging bags.

[0072] It should be understood that the smaller the characteristic index of the trial heat seal quality of the packaging bag, the worse the heat seal quality and the ability to be opened of the trial heat sealed packaging bag will be, and the corresponding extracted collection of adjustment values ​​of the heat seal process parameters of the packaging bag should be larger. By extracting the collection of adjustment values ​​of the heat seal process parameters of the packaging bag based on the quality deviation coefficient of the trial heat seal of the packaging bag, it is possible to quickly respond to quality problems arising during the trial heat seal process, timely optimize the heat seal parameters, improve the accuracy and efficiency of the adjustment, and reduce resource waste.

[0073] The set of adjustment values ​​of heat sealing process parameters for packaging bags includes heat sealing knife temperature adjustment value, heat sealing pressure adjustment value and heat sealing time adjustment value.

[0074] Initial adjustment of the heat sealing process parameters of the packaging bag is performed based on the collection of adjustment values ​​of the heat sealing process parameters of the packaging bag.

[0075] In a specific embodiment, for example, the quality deviation coefficient of the heat seal test of the packaging bag obtained through analysis is 0.6, and the heat sealing knife temperature adjustment value extracted through mapping is +15°C, the heat sealing pressure adjustment value is +0.08MPa, and the heat sealing time adjustment value is +0.8s. If the preset heat sealing knife temperature is 180°C, the heat sealing pressure is 0.5MPa, and the heat sealing time is 2s, then after the initial adjustment, the heat sealing knife temperature is 195°C, the heat sealing pressure is 0.58MPa, and the heat sealing time is 2.8s.

[0076] The heat-sealed packaging bag sampling inspection module is used to notify the management center to receive the initial adjustment completion information, start the normal heat sealing of the packaging bags, obtain the number of heat-sealed packaging bags and the operating parameters of the heat-sealing equipment, so as to determine the number of heat-sealed packaging bags for sampling inspection, and record the sampled heat-sealed packaging bags as the sampling heat-sealed packaging bags.

[0077] In this embodiment, the number of random inspections of heat-sealed packaging bags is determined, and the specific analysis process is as follows:

[0078] Get the number of heat-sealed packaging bags.

[0079] Obtain the operating parameters of the heat sealing equipment, including the heat sealing power, noise intensity, equipment vibration acceleration and equipment vibration frequency of the heat sealing equipment.

[0080] It should be noted that the heat sealing power can be collected by a power sensor, the noise intensity can be collected by a sound level meter, the vibration acceleration can be collected by an acceleration sensor, and the equipment vibration frequency can be collected by a spectrum analyzer by converting the vibration signal into an electrical signal through an acceleration sensor.

[0081] Extract the heat sealing equipment reference operating parameters stored in the database, including ideal heat sealing power, reference noise intensity, reference equipment vibration acceleration, and reference equipment vibration frequency.

[0082] The heat sealing equipment operation state characteristic parameters are obtained according to the analysis and processing of the heat sealing equipment operation parameters. The heat sealing equipment operation state characteristic parameters are used to characterize the operation state of the heat sealing equipment when the packaging bag is normally heat-sealed.

[0083] In a specific embodiment, the characteristic parameters of the operating state of the heat sealing equipment are obtained in the following manner:

[0084]

[0085] Among them, C is the characteristic parameter of the operating state of the heat sealing equipment, q is the heat sealing power of the heat sealing equipment, r is the noise intensity of the heat sealing equipment, s is the equipment vibration acceleration of the heat sealing equipment, u is the equipment vibration frequency of the heat sealing equipment, q0 is the ideal heat sealing power, r0 is the reference noise intensity, s0 is the reference equipment vibration acceleration, u0 is the reference equipment vibration frequency, x1 is the heat sealing power weight, x2 is the noise intensity weight, x3 is the equipment vibration acceleration weight, and x4 is the equipment vibration frequency weight.

[0086] It should be understood that the softplus function is a built-in function in Python, softplus(x) = lg(1+e x ).

[0087] It should be noted that the characteristic parameters of the operating state of the heat sealing equipment are obtained by analyzing and processing the operating parameters of the heat sealing equipment, taking into account the mutual influence between these parameters. For example, when the heat sealing power increases, the heating and driving components inside the equipment are fully loaded or even overloaded, the thermal expansion and contraction of the air intensifies, and the mechanical friction increases, which causes the noise intensity to rise accordingly. The uneven heating of the components causes thermal expansion differences, which changes the matching accuracy of the original structure, and the load of the power system increases, causing a sudden increase in unbalanced forces and an increase in the vibration acceleration of the equipment. If the noise intensity increases, it is likely that it is caused by the intensification of equipment vibration, then the vibration acceleration will inevitably increase, and the vibration frequency may also change due to increased resonance risk or internal looseness, collision and other abnormal vibration modes, which in turn may affect the stable output of the heat sealing power, such as vibration interference with the temperature control system or reduced transmission efficiency, forcing the heat sealing power to be passively adjusted. Abnormal changes in vibration frequency, whether caused by resonance or wear and looseness of components, will increase vibration acceleration and amplify noise intensity.

[0088] It should be understood that the heat sealing power weights, noise intensity weights, equipment vibration acceleration weights and equipment vibration frequency weights can all be directly extracted from the database to obtain preset values ​​when used. The extraction method is, for example: constructing a mapping set of heat sealing power, noise intensity, equipment vibration acceleration and equipment vibration frequency with their corresponding heat sealing power weights, noise intensity weights, equipment vibration acceleration weights and equipment vibration frequency weights respectively. When in use, the heat sealing power, noise intensity, equipment vibration acceleration and equipment vibration frequency collected in real time are input into the corresponding mapping set, thereby extracting the heat sealing power weights, noise intensity weights, equipment vibration acceleration weights and equipment vibration frequency weights.

[0089] It is also necessary to understand that the heat seal power weight, noise intensity weight, equipment vibration acceleration weight and equipment vibration frequency weight all have a value range of 0-1.

[0090] The sampling ratio corresponding to each operating state characteristic parameter interval stored in the database is extracted, and the sampling ratio corresponding to the interval where the operating state characteristic parameter of the heat sealing equipment is located is mapped and extracted, and recorded as the sampling ratio of the heat-sealed packaging bag.

[0091] It should be understood that the larger the characteristic parameters of the operating status of the heat sealing equipment, the worse the status of the heat sealing equipment during heat sealing, and the greater the possibility of abnormal heat sealing of the packaging bag. Therefore, the corresponding sampling ratio needs to be higher. By extracting the sampling ratio of heat-sealed packaging bags based on the characteristic parameters of the operating status of the heat sealing equipment, the sampling ratio can be determined according to the operating status of the equipment, thereby improving the accuracy and rationality of the sampling inspection and avoiding resource waste to a certain extent.

[0092] Determine the number of heat-sealed packaging bags based on the number of heat-sealed packaging bags and the sampling ratio of heat-sealed packaging bags.

[0093] In a specific embodiment, for example, the characteristic parameter of the operating state of the heat-sealing equipment is 75, and the corresponding sampling ratio of heat-sealed packaging bags is 15%. If the number of heat-sealed packaging bags is 1000, the number of heat-sealed packaging bags to be sampled according to the sampling ratio of heat-sealed packaging bags is 1000*15%=150.

[0094] The heat sealing process parameter compensation module is used to obtain the basic data of the heat sealing equipment, analyze the basic status evaluation indicators of the heat sealing equipment, simultaneously collect the heat sealing quality data of each sampled heat-sealed packaging bag, analyze the heat sealing quality scores of the sampled packaging bags, and combine the basic status evaluation indicators of the heat sealing equipment to compensate and adjust the heat sealing process parameters of the packaging bag production.

[0095] In this embodiment, the heat seal quality scores of the sampled packaging bags are analyzed, and the specific analysis process is as follows:

[0096] The heat seal quality data of each sampled heat-sealed packaging bag is collected simultaneously, including the tearing force, heat seal peeling force, heat seal edge roughness and surface friction of the material in the heat seal area of ​​each sampled heat-sealed packaging bag.

[0097] Based on the heat sealing quality data of the sampled heat-sealed packaging bags, the heat sealing quality characteristic parameters of the sampled heat-sealed packaging bags were processed, including the tearing force standard deviation, heat sealing peel force interquartile range, heat sealing edge roughness extreme value difference and heat sealing part material surface friction variance of the sampled heat-sealed packaging bags.

[0098] It should be noted that the standard deviation of the tearing force of the heat-sealed packaging bags sampled is obtained in the following way:

[0099] Among them, α is the standard deviation of tearing force, sk i is the tearing force of the i-th heat-sealed packaging bag sampled, i is the number of each heat-sealed packaging bag sampled, i=1,2,...,m, and m is the number of heat-sealed packaging bags sampled.

[0100] The specific method of obtaining the heat seal peel force interquartile range is as follows: arrange the heat seal peel force of each sampled heat seal packaging bag in order from small to large, and calculate the position of the lower quartile Q1: m is the number of data, for Q1, its position Calculate the position of the upper quartile Q3: m is the number of data, for Q3, its position When the position calculation result is an integer, the data at that position is directly taken as the quartile value. When the position calculation result is a decimal, linear interpolation is used to obtain the values ​​of the lower quartile and the upper quartile, and according to the interquartile range (IQR) formula: IQR=Q3-Q1.

[0101] In a specific embodiment, for example, there is a set of heat seal peel force data (in N): 3.2, 3.5, 3.8, 4.0, 4.2, 4.5, 4.8, 5.0, 5.2, 5.5. Because μ1=2.75, its integer part is 2 and the decimal part is 0.75, the value of Q1 is equal to the difference between the second data and the third data, that is, Q1=3.5+(3.8-3.5)*0.75=3.725, because μ3=8.25, its integer part is 8 and the decimal part is 0.25, the value of Q3 is equal to the difference between the eighth data and the ninth data, that is, Q3=5.0+(5.2-5.0)*0.25=5.05, then the interquartile range IQR=Q3-Q1=5.05-3.725=1.325.

[0102] The specific method of obtaining the surface friction variance of the heat-sealed material is as follows:

[0103] Among them, δ is the variance of the friction force on the surface of the heat-sealed material, mc i is the friction force of the material surface at the i-th heat-sealed part, i is the number of each heat-sealed packaging bag sampled, i=1,2,...,m, and m is the number of heat-sealed packaging bags sampled.

[0104] The heat sealing quality assessment correction coefficient of the packaging bag is extracted according to the heat sealing knife action stability index. The specific extraction process is: extract the quality assessment correction coefficient corresponding to each stability index interval stored in the database, and map the extracted quality assessment correction coefficient corresponding to the interval where the heat sealing knife action stability index is located, and record it as the packaging bag heat sealing quality assessment correction coefficient.

[0105] It should be understood that the greater the heat sealing knife action stability index, the more stable the heat sealing knife operation, and the higher the requirements for the heat sealing quality of the heat sealing equipment. This high degree of stability brings about an increase in the requirements for the heat sealing quality of the heat sealing equipment. In this case, the corresponding correction coefficient for the heat sealing quality assessment of the extracted packaging bag should be smaller.

[0106] In a specific embodiment, assuming that under normal circumstances, a quality score of 6 can be regarded as a qualified product, but for a situation where the heat sealing knife has a larger action stability index, due to the higher quality expectations brought about by its operational stability, a quality score of 6 at this time may mean that in some aspects it still has not reached a better standard that matches this high stability, and there is still room for improvement, which requires more precise evaluation and adjustment to ensure the continued stability of the heat sealing quality under high standards.

[0107] According to the heat sealing quality characteristic parameters of the sampled heat-sealed packaging bags and the heat sealing quality assessment correction coefficient of the packaging bags, the heat sealing quality score of the sampled packaging bags is obtained through analysis and processing, and the heat sealing quality score of the sampled packaging bags is used to characterize the heat sealing quality of the sampled packaging bags.

[0108] In a specific embodiment, the heat seal quality score of the packaging bag is randomly inspected, and the specific method for obtaining the score is as follows:

[0109]

[0110] Among them, ZP is the heat seal quality score of the sampled packaging bags. is the correction coefficient for heat seal quality assessment of packaging bags, α is the standard deviation of tearing force of sampled heat-sealed packaging bags, β is the interquartile range of heat seal peeling force of sampled heat-sealed packaging bags, γ is the extreme value difference of heat seal edge roughness of sampled heat-sealed packaging bags, δ is the variance of surface friction of heat seal material at heat seal part of sampled heat-sealed packaging bags, is the deviation factor corresponding to the standard deviation of unit tearing force, is the deviation factor corresponding to the interquartile range of unit heat seal peel force, is the deviation factor corresponding to the extreme value difference of unit heat seal edge roughness, is the deviation factor corresponding to the variance of the material surface friction force per unit heat sealing area.

[0111] It should be noted that the deviation factor corresponding to the unit tear force standard deviation, the deviation factor corresponding to the unit heat seal peel force interquartile range, the deviation factor corresponding to the unit heat seal edge roughness extreme value difference and the deviation factor corresponding to the unit heat seal part material surface friction variance can be directly extracted from the database. For example, the tear force standard deviation, heat seal peel force interquartile range, heat seal edge roughness extreme value difference and heat seal part material surface friction variance of the sampled heat-sealed packaging bags are combined with the deviation factor corresponding to the unit tear force standard deviation, the deviation factor corresponding to the unit heat seal peel force interquartile range, the deviation factor corresponding to the unit heat seal edge roughness extreme value difference and the deviation factor corresponding to the unit heat seal part material surface friction variance to construct a corresponding mapping set one by one. When in use, the tear force standard deviation, heat seal peel force interquartile range, heat seal edge roughness extreme value difference and heat seal part material surface friction variance of the sampled heat seal packaging bags collected in real time are input into the corresponding mapping set to extract the corresponding deviation factor.

[0112] In this embodiment, the basic status evaluation index of the heat sealing equipment is analyzed, and the specific analysis process is as follows:

[0113] Obtain the basic data of heat sealing equipment, which includes the cumulative operating time of the heat sealing equipment, the shortest interval between failures, the years of use and the frequency of maintenance.

[0114] It should be noted that the basic data of heat sealing equipment can be extracted from the system program log.

[0115] Based on the analysis and processing of the basic data of the heat sealing equipment, the basic state evaluation index of the heat sealing equipment is obtained, and the basic state evaluation index of the heat sealing equipment is used to characterize the state performance of the heat sealing equipment itself.

[0116] In a specific embodiment, the basic status evaluation index of the heat sealing equipment is obtained by the following method:

[0117]

[0118] Among them, SZ is the basic status evaluation index of heat sealing equipment, ys is the cumulative operating time of heat sealing equipment, wj is the shortest interval between failures of heat sealing equipment, nx is the service life of heat sealing equipment, and wp is the maintenance frequency of heat sealing equipment. is the deviation factor corresponding to the unit cumulative running time, is the deviation factor corresponding to the shortest interval time of unit failure, is the deviation factor corresponding to the unit’s years of use, is the deviation factor corresponding to a single maintenance, and e is a natural constant.

[0119] It should be noted that the deviation factor corresponding to the unit cumulative operating time, the deviation factor corresponding to the unit shortest interval between failures, the deviation factor corresponding to the unit years of use and the deviation factor corresponding to a single maintenance are preset values ​​directly extracted from the database. The extraction method is, for example, to construct a mapping set one by one with the cumulative operating time, the shortest interval between failures, the years of use and the maintenance frequency and the deviation factor corresponding to the unit cumulative operating time, the deviation factor corresponding to the unit shortest interval between failures, the deviation factor corresponding to the unit years of use and the deviation factor corresponding to a single maintenance. When in use, the cumulative operating time, the shortest interval between failures, the years of use and the maintenance frequency obtained in real time are input into the corresponding mapping set to generate the corresponding unit deviation factor.

[0120] It should also be noted that the basic status evaluation indicators of heat sealing equipment obtained by analyzing and processing the basic data of heat sealing equipment take into account the mutual influence between these parameters. For example, when the cumulative operating time increases, the wear of equipment parts increases, and the probability of failure increases, which may lead to a shortening of the shortest interval between failures. As the service life increases, the degree of equipment aging deepens, and failures are more likely to occur, further affecting the shortest interval between failures. At the same time, it may also prompt an increase in the frequency of maintenance to maintain equipment performance. If the shortest interval between failures becomes smaller, it means that the equipment fails frequently, which will affect production efficiency and may cause the cumulative operating time to slow down in the short term (due to maintenance shutdowns) and increase the frequency of maintenance. An increase in the service life usually means a decline in the overall performance of the equipment and an increase in the risk of failure, which prompts an increase in the frequency of maintenance, and will also further accumulate the cumulative operating time, making the shortest interval between failures easier to shorten.

[0121] In this embodiment, compensation adjustment of heat sealing process parameters in packaging bag production is performed, and the specific analysis process is as follows:

[0122] The allowable error value of heat sealing quality is extracted according to the basic status evaluation index of the equipment. The specific extraction process is: extract the allowable error value of quality corresponding to each basic status evaluation index interval of the equipment stored in the database, and map the allowable error value of quality corresponding to the interval where the basic status evaluation index of the heat sealing equipment is located, which is recorded as the allowable error value of heat sealing quality.

[0123] It should be noted that the larger the basic status evaluation index of the heat sealing equipment is, the worse the performance of the heat sealing equipment itself is. In order to adapt to this poor equipment status and ensure the continuity of production, the corresponding extracted allowable error value of the heat sealing quality needs to be increased accordingly. This can tolerate the fluctuation of the heat sealing quality caused by the poor status of the equipment itself to a certain extent, and avoid frequent shutdowns and adjustments due to excessive pursuit of high precision, which will cause a significant reduction in production efficiency.

[0124] Extract the heat seal quality scores of historical sampled packaging bags stored in the database.

[0125] It should be understood that the historical sampling heat sealing quality score of packaging bags refers to the sampling heat sealing quality score of the previous batch of packaging bags.

[0126] The heat sealing quality score of the sampled packaging bags is subtracted from the heat sealing quality score of the historical sampled packaging bags to obtain the heat sealing quality deviation score of the packaging bags.

[0127] It should be noted that the difference processing refers to the subtraction of the heat sealing quality score of the sampled packaging bags from the heat sealing quality score of the historical sampled packaging bags. The result of the difference processing can be greater than zero, less than zero or equal to zero.

[0128] If the heat sealing quality deviation score of the packaging bag is less than or equal to the allowable error value of the heat sealing quality, no compensatory adjustment of the heat sealing process parameters for packaging bag production will be performed.

[0129] If the heat sealing quality deviation score of the packaging bag is greater than the allowable error value of the heat sealing quality, the collection of process parameter compensation adjustment values ​​corresponding to each quality deviation score interval stored in the database is extracted, and the collection of process parameter compensation adjustment values ​​corresponding to the interval in which the heat sealing quality deviation score of the packaging bag is located is mapped and extracted, and recorded as the collection of heat sealing process parameter compensation adjustment values.

[0130] Compensation adjustment of heat sealing process parameters in packaging bag production is performed based on the collection of heat sealing process parameter compensation adjustment values.

[0131] The heat sealing process parameter compensation adjustment value collection includes heat sealing knife temperature compensation adjustment value, heat sealing pressure compensation adjustment value and heat sealing time compensation adjustment value.

[0132] In a specific embodiment, for example, the heat sealing quality deviation score of the packaging bag obtained through analysis is 1, and the heat sealing knife compensation adjustment value extracted through mapping is +10°C, the heat sealing pressure compensation adjustment value is +0.1MPa, and the heat sealing time compensation adjustment value is +0.5s. If after the initial adjustment, the heat sealing knife temperature is 195°C, the heat sealing pressure is 0.58MPa, and the heat sealing time is 2.8s, then after the compensation adjustment, the heat sealing knife temperature is 205°C, the heat sealing pressure is 0.68MPa, and the heat sealing time is 3.2s.

[0133] Reference Figure 2 As shown, the second aspect of the present invention provides a production management method for packaging bags with an easy-to-open function, comprising:

[0134] S1, start the preheating program of the heat sealing equipment, and after the preheating is completed, perform an idling operation to analyze the heat sealing knife action stability index, thereby controlling the heat sealing equipment to start operation;

[0135] S2, extracting the number of test heat-sealed packaging bags, and test heat-sealing the packaging bags, collecting the test heat-sealing quality data of the packaging bags, thereby performing initial adjustment on the heat-sealing process parameters of the packaging bags through analysis;

[0136] S3, notifying the management center to receive the initial adjustment completion information, start the normal heat sealing of the packaging bags, obtain the number of heat-sealed packaging bags and the operating parameters of the heat-sealing equipment, so as to determine the number of heat-sealed packaging bags for random inspection, and record the heat-sealed packaging bags sampled as the heat-sealed packaging bags for random inspection;

[0137] S4, obtain the basic data of heat sealing equipment, analyze the basic status evaluation indicators of heat sealing equipment, simultaneously collect the heat sealing quality data of each sampled heat-sealed packaging bag, analyze the heat sealing quality score of the sampled packaging bags, and combine the basic status evaluation indicators of heat sealing equipment to make compensatory adjustments to the heat sealing process parameters of packaging bag production.

[0138] The third aspect of the present invention provides a packaging bag production management device with an easy-to-open function, comprising: a processor, and a memory and a network interface connected to the processor: the network interface is connected to a non-volatile memory in a server; when the processor is running, it retrieves a computer program from the non-volatile memory through the network interface, and runs the computer program through the memory to implement a packaging bag production management method with an easy-to-open function.

[0139] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A packaging bag production management system with easy-open function, characterized in that: include: The heat sealing equipment operation start control module is used to start the heat sealing equipment preheating program, and perform an idling operation after the preheating is completed, analyze the heat sealing knife action stability index, and thus control the heat sealing equipment to start operation; The heat-sealing process parameter initial adjustment module is used to extract the number of trial heat-sealed packaging bags, conduct trial heat-sealing of packaging bags, collect the trial heat-sealing quality data of packaging bags, and make initial adjustments to the heat-sealing process parameters of packaging bags through analysis; The heat-sealed packaging bag sampling inspection module is used to notify the management center to receive the initial adjustment completion information, start the normal heat sealing of the packaging bag, obtain the number of heat-sealed packaging bags and the operating parameters of the heat-sealing equipment, so as to determine the number of heat-sealed packaging bags for sampling inspection, and record the sampled heat-sealed packaging bags as the sampling heat-sealed packaging bags; The heat sealing process parameter compensation module is used to obtain the basic data of the heat sealing equipment, analyze the basic status evaluation indicators of the heat sealing equipment, simultaneously collect the heat sealing quality data of each sampled heat-sealed packaging bag, analyze the heat sealing quality scores of the sampled packaging bags, and combine the basic status evaluation indicators of the heat sealing equipment to compensate and adjust the heat sealing process parameters of the packaging bag production.

2. The packaging bag production management system with easy-open function according to claim 1, characterized in that: The heat sealing knife action stability index is analyzed to control the operation and start of the heat sealing equipment. The specific analysis process is as follows: Start the preheating procedure of the heat sealing equipment and perform an idling operation after the preheating is completed; Collect the heat sealing knife operation parameters, including the heat sealing knife average displacement deviation value, the heat sealing knife speed fluctuation extreme value difference, the heat sealing knife maximum vibration amplitude and the heat sealing knife pressure fluctuation extreme value difference; The heat sealing knife motion stability index is obtained according to the heat sealing knife motion parameters analysis and processing, and the heat sealing knife motion stability index is used to characterize the stability of the heat sealing knife when the heat sealing equipment is running idle; Extract the heat sealing knife action stability threshold preset in the database; If the heat sealing knife stability index is less than or equal to the heat sealing knife action stability threshold, a warning prompt message is generated and uploaded as a reminder; If the heat sealing knife stability index is greater than the heat sealing knife action stability threshold, a heat sealing device operation start signal is generated, and the heat sealing device operation start is controlled.

3. The packaging bag production management system with easy-open function according to claim 1, characterized in that: The heat sealing process parameters of the packaging bag are analyzed and initially adjusted. The specific analysis process is as follows: Extracting the number of trial heat-sealed packaging bags preset in the database, thereby performing trial heat-sealing of the packaging bags, and recording the trial heat-sealed packaging bags as trial heat-sealed packaging bags; Obtain the test heat seal quality data of packaging bags, including the tearing force, heat seal peeling force, heat seal edge roughness and heat seal material surface friction of each test heat seal packaging bag; The heat sealing data of each test heat-sealed packaging bag are averaged to obtain the test heat-sealed quality data of the packaging bag, which includes the average tearing force of the test heat-sealed packaging bag, the average heat-sealed peeling force, the average roughness of the heat-sealed edge and the average friction force of the material surface at the heat-sealed part; According to the analysis and processing of the packaging bag test heat seal quality data, the packaging bag test heat seal quality characteristic index is obtained, and the packaging bag test heat seal quality characteristic index is used to characterize the heat seal quality and easy opening ability of the test heat sealed packaging bag; Extract the packaging bag test heat seal quality verification indicators preset in the database; The packaging bag test heat seal quality characteristic index and the packaging bag test heat seal quality verification index are processed by difference to obtain the packaging bag test heat seal quality deviation coefficient; Extract the heat sealing process parameter adjustment value collection corresponding to each quality deviation coefficient interval stored in the database, and map and extract the heat sealing process parameter adjustment value collection corresponding to the interval where the packaging bag test heat sealing quality deviation coefficient is located, and record it as the packaging bag heat sealing process parameter adjustment value collection; The set of adjustment values ​​of heat sealing process parameters of packaging bags includes the adjustment value of heat sealing knife temperature, the adjustment value of heat sealing pressure and the adjustment value of heat sealing time; Initial adjustment of the heat sealing process parameters of the packaging bag is performed based on the collection of adjustment values ​​of the heat sealing process parameters of the packaging bag.

4. The packaging bag production management system with easy-open function according to claim 1, characterized in that: The specific analysis process for determining the number of random inspections of heat-sealed packaging bags is as follows: Get the number of heat-sealed packaging bags; Obtain the operating parameters of the heat sealing equipment, including the heat sealing power, noise intensity, equipment vibration acceleration and equipment vibration frequency of the heat sealing equipment; According to the heat sealing equipment operating parameters, the heat sealing equipment operating state characteristic parameters are obtained, wherein the heat sealing equipment operating state characteristic parameters are used to characterize the operating state of the heat sealing equipment when the packaging bag is normally heat-sealed; Extract the sampling ratio corresponding to each operation state characteristic parameter interval stored in the database, and map the sampling ratio corresponding to the interval where the operation state characteristic parameter of the heat sealing equipment is located, and record it as the sampling ratio of the heat-sealed packaging bag; Determine the number of heat-sealed packaging bags based on the number of heat-sealed packaging bags and the sampling ratio of heat-sealed packaging bags.

5. The packaging bag production management system with easy-open function according to claim 1, characterized in that: The specific analysis process of analyzing the basic status evaluation index of heat sealing equipment is as follows: Obtain basic data of heat sealing equipment, including the cumulative operating time of heat sealing equipment, the shortest interval between failures, service life and maintenance frequency; Based on the analysis and processing of the basic data of the heat sealing equipment, the basic state evaluation index of the heat sealing equipment is obtained, and the basic state evaluation index of the heat sealing equipment is used to characterize the state performance of the heat sealing equipment itself.

6. The packaging bag production management system with easy-open function according to claim 1, characterized in that: The specific analysis process of the analysis and random inspection of packaging bag heat seal quality scoring is as follows: Simultaneously collect the heat seal quality data of each sampled heat seal packaging bag, including the tearing force, heat seal peeling force, heat seal edge roughness and heat seal material surface friction of each sampled heat seal packaging bag; Based on the heat seal quality data of the sampled heat seal packaging bags, the heat seal quality characteristic parameters of the sampled heat seal packaging bags are processed, including the tear force standard deviation, heat seal peel force interquartile range, heat seal edge roughness extreme value difference and heat seal part material surface friction variance of the sampled heat seal packaging bags; Extract the correction factor of heat sealing quality assessment of packaging bags according to the heat sealing knife action stability index; According to the heat sealing quality characteristic parameters of the sampled heat-sealed packaging bags and the heat sealing quality assessment correction coefficient of the packaging bags, the heat sealing quality score of the sampled packaging bags is obtained through analysis and processing, and the heat sealing quality score of the sampled packaging bags is used to characterize the heat sealing quality of the sampled packaging bags.

7. The packaging bag production management system with easy-open function according to claim 6, characterized in that: The specific analysis process of the compensation adjustment of the heat sealing process parameters for packaging bag production is as follows: Extract the allowable error value of heat sealing quality based on the basic equipment status evaluation indicators; Extract the heat seal quality scores of historical sampled packaging bags stored in the database; The heat sealing quality score of the sampled packaging bags is processed by difference with the heat sealing quality score of the historical sampled packaging bags to obtain the heat sealing quality deviation score of the packaging bags; If the heat seal quality deviation score of the packaging bag is less than or equal to the allowable error value of the heat seal quality, no compensation adjustment of the heat seal process parameters for the packaging bag production will be performed; If the heat seal quality deviation score of the packaging bag is greater than the allowable error value of the heat seal quality, the set of process parameter compensation adjustment values ​​corresponding to each quality deviation score interval stored in the database is extracted, and the set of process parameter compensation adjustment values ​​corresponding to the interval where the heat seal quality deviation score of the packaging bag is located is mapped and extracted, and recorded as the set of heat seal process parameter compensation adjustment values; Compensation adjustment of heat sealing process parameters in packaging bag production is performed based on the collection of heat sealing process parameter compensation adjustment values.

8. The packaging bag production management system with easy-open function according to claim 6, characterized in that: The specific method for obtaining the heat seal quality score of the sampled packaging bags is as follows: Among them, ZP is the heat seal quality score of the sampled packaging bags. is the correction coefficient for heat seal quality assessment of packaging bags, α is the standard deviation of tearing force of sampled heat-sealed packaging bags, β is the interquartile range of heat seal peeling force of sampled heat-sealed packaging bags, γ is the extreme value difference of heat seal edge roughness of sampled heat-sealed packaging bags, δ is the variance of surface friction of heat seal material at heat seal part of sampled heat-sealed packaging bags, is the deviation factor corresponding to the standard deviation of unit tearing force, is the deviation factor corresponding to the interquartile range of unit heat seal peel force, is the deviation factor corresponding to the extreme value difference of unit heat seal edge roughness, is the deviation factor corresponding to the variance of the material surface friction force per unit heat sealing area.

9. A production management method for packaging bags with easy-open function, characterized in that: include: S1, start the preheating program of the heat sealing equipment, and after the preheating is completed, perform an idling operation to analyze the heat sealing knife action stability index, thereby controlling the heat sealing equipment to start operation; S2, extracting the number of test heat-sealed packaging bags, and test heat-sealing the packaging bags, collecting the test heat-sealing quality data of the packaging bags, thereby performing initial adjustment on the heat-sealing process parameters of the packaging bags through analysis; S3, notifying the management center to receive the initial adjustment completion information, start the normal heat sealing of the packaging bags, obtain the number of heat-sealed packaging bags and the operating parameters of the heat-sealing equipment, so as to determine the number of heat-sealed packaging bags for random inspection, and record the heat-sealed packaging bags sampled as the heat-sealed packaging bags for random inspection; S4, obtain the basic data of heat sealing equipment, analyze the basic status evaluation indicators of heat sealing equipment, simultaneously collect the heat sealing quality data of each sampled heat-sealed packaging bag, analyze the heat sealing quality score of the sampled packaging bags, and combine the basic status evaluation indicators of heat sealing equipment to make compensatory adjustments to the heat sealing process parameters of packaging bag production.

10. A packaging bag production management device with an easy-to-open function, characterized in that: include: A processor, and a memory and a network interface connected to the processor: the network interface is connected to a non-volatile memory in the server; When running, the processor retrieves the computer program from the non-volatile memory through the network interface, and runs the computer program through the memory to be applied to the production management method of packaging bags with easy-to-open function as described in claim 9 above.

Citation Information

Patent Citations

  • Method for monitoring power test beds and power test bed

    CN101592555A

  • Method for heat sealing small cigarette packet

    CN110027738A

  • Preprinting transverse cutting precision improving method

    CN111114002A

  • Double-five-axis hybrid robot double-machine mirror image processing control system and method

    CN118466372A

  • Method and system for calibrating an automatic pouch forming machine and device for characterising a pouch precursor

    US20230159205A1