Bubble bag production equipment control method and system based on width adaptive adjustment

Abstract

The present application relates to the technical field of production equipment control, and discloses a bubble bag production equipment control method and system based on width self-adaptive adjustment, which comprises the following steps: confirming preparation parameters and a preparation equipment set, calculating a set of instantaneous deviations, if there is no instantaneous deviation less than zero in the set of instantaneous deviations, taking the set of instantaneous deviations as a first set of instantaneous deviations, performing a first deviation adjustment operation based on the first set of instantaneous deviations to obtain a first set of regulated equipment, if there is an instantaneous deviation less than zero in the set of instantaneous deviations, performing a second deviation adjustment operation based on a second set of instantaneous deviations to obtain a second set of regulated equipment, obtaining a current effective production width, performing equipment adjustment based on the current effective production width to obtain a set of normally operating equipment, and controlling the bubble bag production equipment based on the width self-adaptive adjustment. The present application can improve the flexibility and intelligent level of the equipment.

Description

Technical Field

[0001] This invention relates to the field of production equipment control technology, and in particular to a control method and system for bubble bag production equipment based on adaptive width adjustment. Background Technology

[0002] Adaptive width adjustment is a feature that automatically adjusts relevant parameters of the production equipment during the bubble bag manufacturing process, based on the bubble bag manufacturing parameters and the actual operating conditions of the equipment, to ensure that the width of the bubble bag remains within the required range throughout the production process. A bubble bag is a packaging material composed of multiple layers of plastic film, with numerous small air bubbles distributed across one or more layers of film.

[0003] Existing bubble wrap production equipment typically uses a fixed width design, resulting in poor adaptability to different product specifications. When switching to produce bubble wrap of different widths, it is often necessary to change molds or perform complex mechanical adjustments, which not only increases operational steps but also significantly reduces production efficiency. Furthermore, traditional adjustment methods usually rely on manual experience, resulting in long adjustment cycles and difficulty in responding to changes in parameters during production in real time, making the equipment particularly passive when facing the demands of multi-variety, small-batch production. Therefore, improving the flexibility and intelligence of the equipment is an urgent technical problem to be solved. Summary of the Invention

[0004] This invention provides a control method for bubble bag production equipment based on adaptive width adjustment and a computer-readable storage medium, the main purpose of which is to improve the flexibility and intelligence level of the equipment.

[0005] To achieve the above objectives, the present invention provides a control method for bubble bag production equipment based on adaptive width adjustment, comprising: Receive the preparation instructions and confirm the preparation parameters and preparation equipment set based on the preparation instructions; The instantaneous deviation set is calculated based on the preparation parameters and the preparation equipment set, and it is determined whether there are any instantaneous deviations in the instantaneous deviation set that are less than the preset zero value; If there is no instantaneous deviation less than zero in the instantaneous deviation set, then the instantaneous deviation set is taken as the first instantaneous deviation set, and the first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain the first control device set; If there is an instantaneous deviation less than zero in the instantaneous deviation set, then it is determined whether there is an instantaneous deviation greater than zero in the instantaneous deviation set. If there is no instantaneous deviation greater than zero in the instantaneous deviation set, then the instantaneous deviation set is used as the second instantaneous deviation set, and a second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain the second control device set. The control equipment set is determined based on the first control equipment set or the second control equipment set, and the current effective production width is obtained based on the control equipment set. Based on the current effective production width, the equipment is adjusted to obtain a set of normally operating equipment. The normally operating equipment set is used to prepare products to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed.

[0006] Optionally, the calculation of the instantaneous deviation set based on the preparation parameters and the preparation equipment set includes: Based on the preparation parameters and preparation equipment set, the shaped bubble film and the target shaped width are prepared. The shaped bubble film is image acquired using a preset acquisition frequency to obtain the shaped bubble film image set. Image pixel processing is performed on each formed bubble film image in the formed bubble film image set to obtain the bubble film width set; Calculate the instantaneous deviation between each bubble width and the target forming width in the bubble width set to obtain the instantaneous deviation set.

[0007] Optionally, the preparation of the shaped bubble film and the target shaped width based on the preparation parameters and preparation equipment set includes: The theoretical total width is calculated based on the preparation parameters and the preset number of horizontal layouts. The total loss is calculated based on the preset edge sealing width, the preset edge cutting loss, and the number of horizontal layouts. The target forming width is calculated based on the theoretical total width and the total loss. The target molding ratio parameters are determined based on the pre-constructed material type and the preset expected thin film mechanical properties. The flat width of the membrane tube is obtained by dividing the target molding width by the preset pi. The target opening diameter of the die head is calculated based on the flat width of the membrane tube and the target forming ratio parameters. The equipment set for preparation is then calibrated and adjusted based on the flat width of the membrane tube and the target opening diameter of the die head to obtain the calibrated equipment set for preparation. According to the type of material to be prepared, the raw materials are obtained, and the equipment preheating operation is performed on the calibration equipment set to obtain the preheated equipment set. The raw materials are pre-processed using preheated equipment to obtain shaped bubble film.

[0008] Optionally, the step of performing a first deviation adjustment operation based on a first instantaneous deviation set to obtain a first set of control devices includes: Calculate the first average deviation value of the first instantaneous deviation set, and compare the first average deviation value with a preset deviation threshold; If the first average deviation value is less than or equal to the deviation threshold, then the pre-built programmable logic control module is used to perform a single device adjustment operation on the pre-built mold lip adjustment ring to obtain the adjusted mold lip adjustment ring. If the first average deviation value is greater than the deviation threshold, a synchronous adjustment command for the mold head air pressure is received. Based on the synchronous adjustment command for the mold head air pressure, the pre-constructed cold air ring air pressure adjustment unit and the mold lip adjustment ring are combined and adjusted to obtain a first set of combined control units. The first set of combined control units includes: a normal air pressure adjustment unit and a first normal mold lip adjustment ring. The first set of control devices is identified based on the already controlled mold lip adjustment ring or the first set of combined control units.

[0009] Optionally, the step of using a pre-built programmable logic control module to perform a single-device adjustment operation on the pre-built die lip adjustment ring to obtain the adjusted die lip adjustment ring includes: Receive the die head fine-tuning command, and adjust the die lip adjustment ring to increase the die lip gap according to the die head fine-tuning command and the programmable logic control module to obtain the initial die lip gap; If the initial die lip gap is less than the preset target die lip gap value, then return to the step of increasing the die lip gap adjustment operation of the die lip adjustment ring according to the die head fine adjustment command and the programmable logic control module, until the initial die lip gap is equal to the target die lip gap value; If the initial die lip gap is equal to the target die lip gap value, then the die lip adjustment ring is used as the adjusted die lip adjustment ring.

[0010] Optionally, the second deviation adjustment operation based on the second instantaneous deviation set to obtain the second control device set includes: Calculate the second average deviation value of the second instantaneous deviation set, and determine the negative deviation threshold based on the deviation threshold; If the second average deviation value is greater than or equal to the negative deviation threshold, a fine-tuning command for the traction roller is received. Based on the fine-tuning command for the traction roller and the pre-built embedded control unit, the spacing of the first traction roller is tightened to obtain the adjusted traction roller. If the second average deviation value is less than the negative deviation threshold, the first traction roller and the die lip adjustment ring are combined and adjusted to obtain the second combined control unit set, wherein the second combined control unit set includes: a normal spacing traction roller and a second normal die lip adjustment ring; The second set of control equipment is identified based on the already controlled traction roller or the second set of combined control units.

[0011] Optionally, the step of adjusting the equipment based on the current effective production width to obtain a set of normally operating equipment includes: The downstream equipment set has been identified, which includes: printing unit equipment set, longitudinal slitting unit equipment set and transverse sealing and bag making unit equipment set, wherein the transverse sealing and bag making unit equipment set includes: servo telescopic mechanism and cutter. Calculate the lateral movement displacement based on the current effective production width and the preset standard base width, and adjust the printing unit equipment set laterally according to the lateral movement displacement to obtain the adjusted printing unit equipment set. The servo telescopic mechanisms of the longitudinal slitting unit equipment set and the transverse sealing and bag making unit equipment set are adjusted to obtain the adjusted slitting unit equipment set and the adjusted servo telescopic mechanism. The adjusted equipment set was identified based on the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism. The adjusted equipment set is then corrected a second time to obtain the normally operating equipment set.

[0012] Optionally, the step of adjusting the servo telescopic mechanisms of the longitudinal slitting unit equipment set and the transverse sealing and bag-making unit equipment set to obtain the adjusted slitting unit equipment set and the adjusted servo telescopic mechanism includes: Calculate the centerline position based on the current effective production width, and adjust the position of each cutting unit in the longitudinal cutting unit equipment set according to the centerline position to obtain the adjusted cutting unit equipment set; The difference between the current effective production width and the preset fixed shrinkage is calculated to obtain the target sealing knife length. Based on the target sealing knife length, the sealing knife length of the servo telescopic mechanism of the transverse sealing and bag making unit is adjusted to obtain the adjusted servo telescopic mechanism.

[0013] Optionally, the step of performing a secondary correction on the adjusted device set to obtain a normally operating device set includes: The adjusted equipment set is monitored in real time to obtain monitoring parameters, including: printing position deviation, cutting position deviation and sealing position deviation; If the monitoring parameters do not meet the preset standard monitoring parameter range conditions, a second correction operation is performed based on the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism to obtain the initial correction equipment set. The initial correction equipment set is then used as the adjusted equipment set, and the process returns to the step of real-time monitoring of the adjusted equipment set until the monitoring parameters meet the preset standard monitoring parameter range conditions. If the monitoring parameters meet the preset standard monitoring parameter range conditions, then the adjusted equipment set will be regarded as the normal operating equipment set.

[0014] To achieve the above objectives, the present invention also provides a control system for bubble bag production equipment based on adaptive width adjustment, comprising: The parameter and equipment confirmation module is used to receive preparation instructions and confirm the preparation parameters and preparation equipment set based on the preparation instructions. The preparation equipment control module is used to calculate an instantaneous deviation set based on preparation parameters and a preparation equipment set, determine whether there is an instantaneous deviation in the instantaneous deviation set that is less than a preset zero value, and if there is no instantaneous deviation in the instantaneous deviation set that is less than zero value, then the instantaneous deviation set is used as a first instantaneous deviation set, and a first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain a first control equipment set; if there is an instantaneous deviation in the instantaneous deviation set that is less than zero value, then it is determined whether there is an instantaneous deviation in the instantaneous deviation set that is greater than zero value, and if there is no instantaneous deviation in the instantaneous deviation set that is greater than zero value, then the instantaneous deviation set is used as a second instantaneous deviation set, and a second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain a second control equipment set; The production width acquisition module is used to identify the control equipment set based on the first control equipment set or the second control equipment set, and to obtain the current effective production width based on the control equipment set. The equipment adjustment completion module is used to adjust the equipment based on the current effective production width to obtain a set of normally operating equipment. The normally operating equipment set is used to prepare products to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed.

[0015] To address the above problems, the present invention also provides an electronic device, the electronic device comprising: Memory, storing at least one instruction; The processor executes the instructions stored in the memory to implement the aforementioned control method for bubble bag production equipment based on adaptive width adjustment.

[0016] To address the aforementioned problems, the present invention also provides a computer-readable storage medium storing at least one instruction, which is executed by a processor in an electronic device to implement the aforementioned control method for bubble bag production equipment based on width adaptive adjustment.

[0017] To address the problems described in the background art, this invention receives a preparation instruction, confirms the preparation parameters and preparation equipment set based on the instruction, calculates an instantaneous deviation set based on the parameters and equipment set, and determines whether there is an instantaneous deviation less than a preset zero value within the set. By calculating the instantaneous deviation set, this invention can reflect the difference between the current production width and the target width in real time, providing data for subsequent adjustments. Determining whether there is an instantaneous deviation less than zero quickly identifies whether the width has shifted negatively, thus deciding whether to enter the corresponding deviation adjustment process, improving the timeliness and accuracy of adjustment. If there is no instantaneous deviation less than zero in the set, this set is used as the first instantaneous deviation set, and a first deviation adjustment operation is performed based on this set to obtain a first control equipment set. This invention, by performing the first deviation adjustment operation based on the first instantaneous deviation set, can effectively reduce the tendency for the width to be too large, allowing the width to quickly converge to the target range, improving the stability and accuracy of width control. If there is an instantaneous deviation less than zero in the set, it is then determined whether there is an instantaneous deviation greater than zero. If the instantaneous deviation of the value is not greater than zero, then the instantaneous deviation set is taken as the second instantaneous deviation set. A second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain the second control equipment set. This invention further determines whether there are instantaneous deviations greater than zero, distinguishing whether the width deviation is simply too small or involves both positive and negative fluctuations, thus selecting a more suitable adjustment method. Using all negative deviations as the second instantaneous deviation set and performing the second deviation adjustment operation effectively corrects the problem of a small width, restoring the width to the target value. The control equipment set is identified based on the first or second control equipment set. The current effective production width is obtained based on the control equipment set. This invention, through the current effective production width, can reflect the actual width after adjustment in real time, enabling downstream equipment to make precise adjustments based on the actual production state, improving the overall production line's synergy. Equipment adjustment is performed based on the current effective production width to obtain the normal operating equipment set. The normal operating equipment set is used for product preparation to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed. Therefore, this invention can improve the flexibility and intelligence level of the equipment. Attached Figure Description

[0018] Figure 1 A flowchart illustrating a control method for bubble bag production equipment based on adaptive width adjustment according to an embodiment of the present invention; Figure 2 A functional block diagram of a bubble bag production equipment control system based on adaptive width adjustment provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the electronic device used to implement the bubble bag production equipment control method based on adaptive width adjustment, according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. Electronic device; 11. Processor; 12. Memory; 13. Bus.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] This application provides a control method for bubble wrap production equipment based on adaptive width adjustment. The executing entity of this control method includes, but is not limited to, at least one of the following electronic devices that can be configured to execute the method provided in this application: a server, a terminal, etc. In other words, the control method for bubble wrap production equipment based on adaptive width adjustment can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0023] Reference Figure 1 The diagram shown is a flowchart illustrating a bubble bag production equipment control method based on adaptive width adjustment according to an embodiment of the present invention. In this embodiment, the bubble bag production equipment control method based on adaptive width adjustment includes: S1. Receive the preparation instruction and confirm the preparation parameters and preparation equipment set according to the preparation instruction.

[0024] Specifically, the preparation parameters include: bag width, bag length, bubble height, and material type. The preparation equipment includes: variable diameter die head, adjustable guide roller frame, first traction roller, transverse sealing and cutting machine, and winding machine.

[0025] It should be explained that the preparation command is used to trigger and regulate the bubble bag preparation process. The forming bag width is the straight-line distance between the two edges of the bubble bag opening. The forming bag width directly determines the extrusion width of the variable-diameter die and the spacing of the adjustable guide rollers. The forming bag length is the straight-line distance between the edge of the bubble bag opening and the sealed bottom of the bag body. The bubble height is the vertical distance from the surface of the bubble film substrate to the top of the bubble after a single bubble on the bubble bag surface has been inflated. The bubble height is controlled collaboratively by the inflation volume, the structural parameters of the variable-diameter die, and the traction speed of the first traction roller during the preparation process. The higher the bubble height, the stronger the bubble bag's cushioning and shock absorption capabilities. The preparation material type refers to the type of material used to prepare the bubble bag (including the bubble film substrate and bubble layer). For example, the preparation material type is low-density polyethylene, linear low-density polyethylene, high-density polyethylene, etc. The variable-diameter die is the equipment used to extrude the molten preparation material to form a continuous bubble film substrate. The adjustable guide rollers are the equipment used to support and guide the bubble film's transport path in the production line, ensuring the bubble film is smoothly transported to subsequent traction and sealing processes. The first traction roller is a device that pulls the freshly extruded molten bubble film at a stable speed, allowing it to cool and solidify, and controlling the thickness and height of the bubble film. The first traction roller is located after the variable diameter die head. The transverse sealing and cutting machine is used to transversely seal and cut the continuously conveyed bubble film to form individual, independent bubble bags. The winding machine is used to neatly wind the prepared individual bubble bags or continuous bubble film (uncut state) for easy subsequent storage, transportation, and secondary processing.

[0026] S2. Calculate the instantaneous deviation set based on the preparation parameters and preparation equipment set, and determine whether there are any instantaneous deviations in the instantaneous deviation set that are less than the preset zero value.

[0027] It should be noted that the zero value in this invention is 0.

[0028] In detail, the calculation of the instantaneous deviation set based on the preparation parameters and the preparation equipment set includes: Based on the preparation parameters and preparation equipment set, the finished bubble film and the target forming width are prepared. The finished bubble film is image acquired using a preset acquisition frequency to obtain a set of images of the formed bubble film. Image pixel processing is performed on each formed bubble film image in the formed bubble film image set to obtain the bubble film width set; Calculate the instantaneous deviation between each bubble width and the target forming width in the bubble width set to obtain the instantaneous deviation set.

[0029] It should be explained that the detailed steps for preparing the finished bubble wrap and the target forming width based on the preparation parameters and equipment set will be given later. The acquisition frequency is the number of times the finished bubble wrap image is acquired per unit time during the bubble wrap preparation process. The forming bubble wrap image set is a collection of forming bubble wrap images. The steps for processing the image pixels of each forming bubble wrap image in the forming bubble wrap image set to obtain the bubble wrap width set are as follows: Forming bubble wrap images are extracted sequentially from the forming bubble wrap image set. First, the extracted images are converted to grayscale images. Then, noise reduction is performed using mean filtering, median filtering, or Gaussian filtering. Next, histogram equalization or adaptive histogram equalization is used to enhance image contrast. Then, the Canny edge detection algorithm is used to extract the two sides of the bubble wrap. The pixel positions of the edges are determined through morphological processing and projection. The number of pixels between the two sides is calculated to obtain the pixel width of the bubble wrap. Finally, according to the pixel actual length conversion ratio obtained by standard scale calibration, the pixel width is converted to the actual physical width, i.e., the bubble wrap width. The bubble wrap widths are then summarized to obtain the bubble wrap width set. Instantaneous deviation is the value obtained by subtracting the width of the bubble film from the target forming width. The instantaneous deviation set is a collection of all instantaneous deviations.

[0030] It is important to understand that this invention controls the temporal resolution and deviation detection sensitivity of the monitoring by setting the acquisition frequency. A higher acquisition frequency can reflect width fluctuations more precisely, but it increases the amount of data processing, while a lower frequency may miss instantaneous changes. Since the images of the formed bubble wrap are easily affected by factors such as noise, uneven lighting, and blurred edges during the acquisition process, thereby reducing the accuracy of width measurement, this invention removes noise by filtering, enhances contrast to make the edges of the bubble wrap easier to identify, and accurately locates the pixel positions of the two sides of the bubble wrap edges through edge detection and morphological processing. Then, combined with camera calibration parameters, the pixel width is converted into the actual physical width, thereby obtaining reliable width data and realizing non-contact, high-precision, and automated width measurement, avoiding the errors and lags caused by manual measurement. Furthermore, the width of bubble wrap may vary during production due to changes in material properties, equipment parameter drift, or fluctuations in traction speed. This invention can detect anomalies in a timely manner and provide a basis for subsequent feedback control by calculating the deviation between the actual width and the target forming width in real time. For example, when the deviation exceeds a threshold, the opening of the die lip of the variable diameter die head, the speed of the traction roller, or other relevant parameters can be automatically adjusted to correct the width deviation, improve the dimensional accuracy and product consistency of the bubble wrap, realize online monitoring and dynamic adjustment of the bubble wrap width, reduce the scrap rate, and improve production stability and efficiency.

[0031] In detail, the preparation of the shaped bubble film and the target shaped width based on the preparation parameters and preparation equipment set includes: The theoretical total width is calculated based on the preparation parameters and the preset number of horizontal layouts. The total loss is calculated based on the preset edge sealing width, the preset edge cutting loss, and the number of horizontal layouts. The target forming width is calculated based on the theoretical total width and the total loss. The target molding ratio parameters are determined based on the pre-constructed material type and the preset expected thin film mechanical properties. The flat width of the membrane tube is obtained by dividing the target molding width by the preset pi. The target opening diameter of the die head is calculated based on the flat width of the membrane tube and the target forming ratio parameters. The equipment set for preparation is then calibrated and adjusted based on the flat width of the membrane tube and the target opening diameter of the die head to obtain the calibrated equipment set for preparation. According to the type of material to be prepared, the raw materials are obtained, and the equipment preheating operation is performed on the calibration equipment set to obtain the preheated equipment set. The raw materials are pre-processed using preheated equipment to obtain shaped bubble film.

[0032] It should be explained that the number of horizontal rows is a pre-defined number of finished bubble bags arranged side-by-side in the horizontal direction on the same width of bubble film. For example, a horizontal row count of 2 means that two finished bubble bags of the same width can be formed simultaneously in the horizontal direction from a single extrusion molding process, and multiple single bags can be obtained by subsequent slitting. The theoretical total width is the required total width of the bubble film obtained by multiplying the width of the formed bag by the number of horizontal rows. The sealing width is the width reserved on both sides of the bubble film or between adjacent bags for heat sealing or pressure sealing during the bubble bag forming process to ensure the sealing performance of the bag. Edge trimming loss is the width of material cut off and discarded on both sides of the bubble film during bubble film preparation and subsequent slitting and bag making processes to ensure neat edges and remove edge defects. Total loss is the sum of all additional material widths in the width direction of the bubble film, excluding the theoretical total width, due to sealing, trimming, and other process requirements. The sealing width is set as follows: For ordinary two-layer bubble wrap (such as PE / PE), the sealing width on one side is usually 8mm. For three-layer bubble wrap (such as PE / nylon / PE) or bubble wrap that needs to withstand greater longitudinal tensile force (>50N / 50mm), the sealing width on one side should be increased to 15mm. The cutting edge loss is set as follows: It depends on the regularity of the film edge after molding and the dimensional correction requirements. It is necessary to comprehensively consider the die extrusion stability, the transverse shrinkage rate during cooling and shaping (generally 1%~3%), and the alignment accuracy of the slitting tool. By measuring the width of edge flash, bubble collapse, or uneven thickness areas through trial cutting before production, the cutting edge loss on one side is usually set to 5mm.

[0033] Understandably, the formula for calculating the total loss in the step of calculating the total loss based on the preset edge banding width, preset edge trimming loss, and number of horizontal layouts is as follows:

[0034] in, Indicates total loss. Indicates the edge banding width. Indicates the number of horizontal pages. This represents the edge trimming loss. In the above formula... This represents the sum of the required sealing widths on both sides of the bubble wrap. Regardless of the number of horizontal rows, a sealing width must be reserved on each side of the bubble wrap to ensure edge sealing performance. Therefore, the sealing width on each side needs to be multiplied by 2. This represents the sum of edge trimming losses caused by the longitudinal separation sealing required between two adjacent finished bubble wrap bags in the case of multiple layouts. represent The existence of column layout There are vertical dividing lines, and each dividing line corresponds to a cutting edge loss. Therefore, it is necessary to reduce the edge trimming loss. Multiply by the number of dividing lines By adding the edge sealing losses on both sides to the cutting losses at the middle dividing line, the total loss width along the entire width direction of the bubble film can be obtained.

[0035] Understandably, the target forming width is the sum of the theoretical total width and the total loss. The expected film mechanical properties are the pre-set mechanical indicators that the formed bubble film should possess. The step of confirming the target forming ratio parameter based on the type of preparation material and the pre-set expected film mechanical properties is as follows: The target forming ratio parameter is confirmed from the database based on the type of preparation material and the expected film mechanical properties. The database contains blow-up ratio data corresponding to different types of preparation materials under different expected film mechanical property requirements. The target forming ratio parameter is the ratio of the diameter of the tubular film preform extruded from the variable diameter die during the blown film forming process, after radial expansion by internal air inflation, to the outlet diameter of the variable diameter die. Pi is the ratio of the circumference of a circle to its diameter. Pi is π. The flat width of the film tube is the width of the tubular bubble film laterally expanded before being flattened into a double-layer film by the traction rollers, after being extruded from the variable diameter die and formed through blow-up and cooling. The target opening diameter of the die is the value obtained by dividing the flat width of the film tube by the target forming ratio parameter. The steps for calibrating and adjusting the preparation equipment set based on the flat width of the membrane tube and the target opening diameter of the die head are as follows: First, adjust the die core position or die lip gap of the variable diameter die head according to the target opening diameter of the die head, so that the actual exit diameter of the die head is consistent with the target opening diameter of the die head. Second, adjust the guide roller spacing and angle of the adjustable guide roller frame according to the flat width of the membrane tube and the target forming width to ensure that the membrane tube maintains the correct lateral position and tension distribution during traction and cooling. At the same time, adjust the traction speed of the first traction roller to ensure that the membrane tube can stably form the target flat width after inflation. Through the coordinated action of the transverse sealing and cutting machine and the winding machine, ensure that the subsequent slitting and winding match the target forming width. The calibrated preparation equipment set is a collection of calibrated preparation equipment.

[0036] It should also be explained that the calibration preparation equipment is the adjusted preparation equipment. The preparation raw material is the raw material prepared according to the selected preparation material type and used for extruding and forming bubble film. The equipment preheating operation of the calibration preparation equipment set refers to the operation of preheating the calibration preparation equipment (extruder barrel, variable diameter die head, and other parts in contact with the melt or sensitive to temperature) in the calibration preparation equipment set. The preheated equipment set is a collection of preheated equipment. The detailed steps of using the preheated equipment set to perform preliminary processing of the preparation raw material to obtain the formed bubble film will be given later.

[0037] It should be noted that, since the raw materials need to be fully melted and uniformly plasticized at specific temperatures to form a melt with the required fluidity, extensibility, and stability, this can be achieved through precise temperature control: the extruder barrel needs to be set with segmented temperatures according to the type of raw material, so that the raw material gradually softens and melts from solid particles, avoiding local overheating and degradation or incompletely melted particle residue. The variable diameter die head needs to be raised to the corresponding process temperature simultaneously to ensure that the melt flows uniformly when passing through the opening of the variable diameter die head, preventing defects such as film thickness deviation and irregular bubble formation caused by uneven temperature of the variable diameter die head. If the temperature of key components such as the extruder barrel and variable diameter die is insufficient, the raw material cannot be fully melted and plasticized. This will not only reduce melt fluidity and increase extrusion resistance, making it difficult to form the film, but also cause uneven melt mixing, resulting in problems such as rough surface, large thickness fluctuations, and poor edge sealing of the bubble film. This seriously affects the mechanical properties and dimensional accuracy of the formed bubble film. Therefore, this invention preheats the calibration and preparation equipment set to stabilize each key component at the preset process temperature, providing a stable temperature environment for subsequent raw material processing and bubble film forming, thereby avoiding the above-mentioned forming defects.

[0038] In detail, the preliminary processing of the raw materials using preheated equipment to obtain the shaped bubble film includes: The raw materials are initially melted and plasticized using a pre-constructed extruder screw to obtain a melt. A preheated variable diameter die head is identified from the preheated equipment. The melt is then extruded using the preheated variable diameter die head to obtain an initial die tube. Start the pre-built air ring inlet valve, and use the started air ring inlet valve to perform radial expansion operation on the initial mold tube to obtain the initial membrane bubble. Measure the height of the initial membrane bubble to obtain the membrane bubble height. If the membrane bubble height is not within the preset standard membrane bubble height range, the intake pressure of the air ring intake valve after startup will be adjusted until the membrane bubble height is within the standard membrane bubble height range, thus obtaining a standard membrane bubble. If the height of the membrane bubble is within the standard membrane bubble height range, then the initial membrane bubble is taken as the standard membrane bubble; Standard membrane bubbles are subjected to bubble forming to obtain shaped bubble membranes.

[0039] It should be explained that the extruder screw is the rotating component inside the extruder barrel. The melt is the material that, after being heated and sheared by the screw within the extruder barrel, transforms from a solid state into a fluid, molten state. The step of using a pre-constructed extruder screw to initially melt and plasticize the raw material is as follows: the extruder screw generates shearing and propulsive forces through rotation, conveying the raw material along the barrel axis. With the assistance of segmented heating within the barrel, the raw material gradually softens, melts, and plasticizes, ultimately forming a uniform melt. The preheated variable-diameter die, the preheated first traction roller, and the preheated adjustable guide roller frame are respectively the variable-diameter die, the first traction roller, and the adjustable guide roller frame, all preheated to the preset process temperature. The step of extruding the melt using a preheated variable-diameter die to obtain the initial die tube is as follows: The uniform melt pushed by the extruder screw is introduced into the flow channel of the preheated variable-diameter die. After further homogenization inside the preheated variable-diameter die, the melt is continuously extruded through the annular opening of the preheated variable-diameter die to form a tubular preform with a certain thickness and diameter, which is the initial die tube. The air ring inlet valve is a valve installed on the air ring to control the amount and pressure of cooling air entering. The air ring inlet valve can change the size of the blown film bubble by adjusting the inlet pressure. Radial expansion is achieved by injecting compressed air into the initial die tube through the air ring inlet valve, causing the initial die tube to expand radially and form a film bubble with a larger diameter.

[0040] Understandably, the initial bubble is a tubular bubble structure formed after the initial die tube undergoes radial expansion. Measuring the bubble height of the initial bubble involves using a laser rangefinder to measure the distance from the outlet of the variable-diameter die head to the position where the bubble is flattened by the traction roller. The bubble height is the distance from the outlet of the variable-diameter die head to the position where the bubble is flattened by the traction roller. Adjusting the inlet pressure of the air ring inlet valve after startup changes the air pressure inside the bubble. A standard bubble is a bubble whose height is within the standard bubble height range, has a stable shape, and expands uniformly. If the bubble height is not within the preset standard bubble height range, it indicates that the current bubble expansion is insufficient or excessive, resulting in poor bubble stability, which may lead to uneven bubble film thickness, width deviation, or poor bubble formation in subsequent bubbles. If the bubble height is within the standard bubble height range, it indicates that the bubble expansion is moderate and the stability is good, ensuring uniform thickness distribution and stable width of subsequent bubble films, representing an ideal state for bubble formation. The standard bubble height range is a preset range of bubble heights. The standard bubble height range is set as follows: First, based on the material type (e.g., LDPE, LLDPE, or a blend of both) and the predetermined expected film mechanical properties (e.g., longitudinal tensile strength ≥25MPa, transverse elongation at break ≥500%), the target blow-up ratio is matched and confirmed from the process database. For example, for LDPE, to obtain a good balance of longitudinal and transverse strength, the target blow-up ratio is usually 2.0~2.5, with a recommended center value of 2.3. For LLDPE, due to its lower melt strength, the target blow-up ratio is generally controlled between 1.5~2.0, with a recommended center value of 1.8. For LDPE / LLDPE blends (70:30 ratio), the target blow-up ratio can be 1.8~2.2, with a recommended center value of 2.0. After determining the center value of the target blow-up ratio, the theoretical bubble diameter is calculated using the known relationship between the flattened width of the membrane tube (i.e., the width of the single layer after flattening, denoted as L, in mm) and the blow-up ratio: Theoretical Bubble Diameter ,in, Represents pi (π). This represents the center value of the target inflation ratio. The theoretical bubble height is then derived using a membrane bubble formation geometric model. Under stable blown film conditions, the theoretical bubble height is usually taken as the vertical distance from the die exit to the frost line (i.e., the phase transition interface where the polymer changes from a molten state to a solid state), and can be estimated using empirical formulas. ,in, Indicates the theoretical diameter of the membrane bubble. Indicates the diameter of the die head. Represents the tangent function. This represents the semi-cone angle of the membrane vesicle. Calculated... This is the theoretical center value. The lower limit of the standard membrane bubble height range is set to the theoretical membrane bubble height multiplied by 0.95, and the upper limit is set to the theoretical membrane bubble height multiplied by 1.05. The standard membrane bubble height range is constructed based on the lower limit and the upper limit of the standard membrane bubble height range.

[0041] Further, the step of forming a bubble from a standard membrane bubble to obtain a shaped bubble membrane includes: The preheated equipment was used to identify the preheated first traction roller and the preheated adjustable guide roller frame. The standard film bubble is cooled to obtain a standard cooled film bubble. The standard cooled film bubble is then pulled using a preheated first traction roller to obtain a pulled film bubble. The pulled film bubble is then guided and conveyed using a preheated adjustable guide roller frame to obtain the initial bubble film. The vacuum forming roller, heat sealing roller and cooling roller were identified. The initial bubble film was vacuum-formed using the vacuum forming roller to obtain a bubble-filled film. The edges of the bubble-filled film are heat-sealed using a vacuum forming roller and a heat-sealing roller to obtain a heat-sealed bubble film. The heat-sealed bubble film is cooled and cured using a cooling roller to obtain a shaped bubble film.

[0042] It should be explained that the cooling operation of the standard film bubble is achieved by blowing cooling air onto the outer wall of the standard film bubble through an air ring. This allows the standard film bubble to cool down rapidly while maintaining a stable shape, gradually transforming it from a high-temperature molten state to a plastic state with certain strength and stability. The air ring is a ring-shaped airflow device installed outside the extrusion die outlet and arranged circumferentially around the film bubble. It has several air outlets inside, used to uniformly blow cooling air onto the outer wall of the freshly extruded high-temperature film bubble. The purpose of cooling is to fix the size of the standard film bubble and prevent it from continuing to expand or deform. The standard cooled film bubble is the standard film bubble after the cooling operation. The traction operation using the preheated first traction roller involves introducing the standard cooled film bubble between one or more pairs of smooth-surfaced and appropriately heated traction rollers. The rotation of the traction rollers generates a stable traction force, pulling the standard cooled film bubble upwards or forwards at a constant speed. The purpose of traction is to control the longitudinal stretching of the film bubble and adjust the film thickness. The traction-completed film bubble is the film bubble whose speed, thickness, and shape have stabilized after being tractioned by the first traction roller. The steps for guiding and conveying the traction bubble using a preheated adjustable guide roller frame are as follows: The traction bubble is conveyed between the guide rollers of the preheated adjustable guide roller frame. The height, angle, and spacing of the guide rollers are adjustable, and the surface of the guide rollers has been preheated to a suitable temperature. Supported and guided by these guide rollers, the traction bubble is smoothly conveyed to the bubble forming unit along a set path. The initial bubble film, after traction and guiding, has not yet formed a complete bubble structure, but already possesses the basic structure of a double-layer film. The vacuum forming roller is a roller with regularly spaced recesses on its surface and connected to a vacuum system. It is used to draw the outer layer of the initial bubble film into the recesses through vacuum suction, forming a bubble cavity structure. The heat-sealing roller is a roller with raised or flat structures on its surface corresponding to the recesses of the vacuum forming roller and equipped with a heating function. It works in conjunction with the vacuum forming roller to heat-seal the inner and outer film layers at the edge of the bubble cavity, allowing the bubble cavity to form independently. A cooling roller is a roller with an internal cooling medium and a cooling structure, used to rapidly cool the heat-sealed bubble film, solidifying and shaping the heat-sealed area to ensure the stability of the bubble structure. The vacuum forming roller's bubble-cell vacuum forming process involves bonding the outer layer of the initial bubble film to the surface of the vacuum forming roller, while a vacuum system generates negative pressure within the cavities, drawing the outer layer of film into the cavities to form predetermined bubble shapes. A bubble-cell film is a film whose outer layer has been vacuum-formed into a bubble structure, but the bubble edges are not yet completely sealed. The bubble-cell edge heat-sealing process utilizes the cooperation of the vacuum forming roller and the heat-sealing roller to apply a certain temperature and pressure to the bubble-cell edges of the bubble-cell film, causing the inner and outer film layers to thermally fuse around the bubble, thus forming independent sealed bubble units. A heat-sealed bubble film is a bubble-cell film after the bubble-cell edge heat-sealing process.The cooling and curing operation using a cooling roller involves bonding the heat-sealing bubble film to the surface of the cooling roller, rapidly reducing the temperature of the bubble film through the low temperature of the cooling roller, thus completely curing the heat-sealed area and fixing the bubble structure. The formed bubble film is the bubble film after cooling and curing.

[0043] It should be noted that in the above steps of the present invention, the outer layer of the initial bubble film is drawn into the cavities on the surface of the vacuum forming roller by the vacuum adsorption force of the vacuum forming roller, causing the outer layer of film to undergo plastic deformation and form a uniformly arranged bubble structure. Then, through the heating and extrusion action of the heat sealing roller, the inner and outer film layers at the edge of the bubble with the bubble are heat-pressed and fused, so that each bubble forms an independent sealed bubble unit. Finally, the temperature of the heat-sealed bubble film is rapidly reduced by the low temperature of the cooling roller, so that the heat-sealed area is completely solidified and the bubble structure is fixed and formed, thereby obtaining a formed bubble film with uniform bubbles, stable dimensions, and mechanical properties that meet the requirements. This realizes the automated forming of bubble film, ensures the stability and consistency of the bubble structure, and improves product quality and production efficiency.

[0044] S3. If there is no instantaneous deviation less than zero in the instantaneous deviation set, then the instantaneous deviation set is taken as the first instantaneous deviation set, and the first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain the first control device set.

[0045] It should be explained that if there are no instantaneous deviations less than zero in the instantaneous deviation set, it means that all instantaneous deviations are greater than or equal to zero. That is, the actual production width of the bubble film is less than or equal to the target forming width, and the deviation direction is consistent and biased towards the negative direction or zero. This indicates that the width is too small or just right, and the first deviation adjustment operation is needed to correct this negative deviation trend. The first instantaneous deviation set is the set of all non-negative instantaneous deviations when there are no instantaneous deviations less than zero in the instantaneous deviation set.

[0046] Specifically, the first deviation adjustment operation based on the first instantaneous deviation set to obtain the first control device set includes: Calculate the first average deviation value of the first instantaneous deviation set, and compare the first average deviation value with a preset deviation threshold; If the first average deviation value is less than or equal to the deviation threshold, then the pre-built programmable logic control module is used to perform a single device adjustment operation on the pre-built mold lip adjustment ring to obtain the adjusted mold lip adjustment ring. If the first average deviation value is greater than the deviation threshold, a synchronous adjustment command for the mold head air pressure is received. Based on the synchronous adjustment command for the mold head air pressure, the pre-constructed cold air ring air pressure adjustment unit and the mold lip adjustment ring are combined and adjusted to obtain a first set of combined control units. The first set of combined control units includes: a normal air pressure adjustment unit and a first normal mold lip adjustment ring. The first set of control devices is identified based on the already controlled mold lip adjustment ring or the first set of combined control units.

[0047] Understandably, the first average deviation value is the average of all instantaneous deviation values ​​in the first instantaneous deviation set, calculated using an arithmetic mean. The deviation threshold is a pre-set critical value used to determine whether the width deviation is within an acceptable range. For example, the deviation threshold is 1.0 mm. If the first average deviation value is less than or equal to the deviation threshold, it indicates that the current bubble film width deviation is relatively small and within an acceptable range. Significant adjustments are not required; only minor adjustments to the die lip gap are needed to further stabilize the width. The programmable logic control module is a unit used for fine-tuning the die lip adjustment ring.

[0048] It should be explained that if the first average deviation value is greater than the deviation threshold, it indicates that the current bubble film width deviation is large, and fine-tuning the die lip gap alone cannot effectively correct it. Simultaneous adjustment of the die head air pressure and die lip gap is required to achieve coordinated control of bubble expansion and extrusion volume. The die head air pressure synchronous adjustment command is a control command used to simultaneously adjust the cold air ring pressure and die lip gap. The cold air ring pressure adjustment unit is a device used to adjust the air ring inlet pressure. By changing the pressure and flow rate of the cooling air, the cold air ring pressure adjustment unit adjusts the cooling rate and expansion state of the bubble film, thereby affecting the width and thickness distribution of the bubble film. The step of combining and adjusting the pre-constructed cold air ring pressure adjustment unit and die lip adjustment ring based on the die head air pressure synchronous adjustment command is as follows: After receiving the die head air pressure synchronous adjustment command, the control system simultaneously coordinates the adjustment of the cold air ring pressure adjustment unit and the die lip adjustment ring according to the current width deviation direction and degree, so that their adjustment effects complement each other, thereby achieving rapid and stable control of the bubble film width. The normal air pressure regulating unit and the first normal die lip adjusting ring are, respectively, a cold air ring air pressure regulating unit whose air pressure value has been adjusted to suit the current process conditions after combined regulation, and a die lip adjusting ring whose die lip gap has been adjusted to suit the current process conditions. The first control equipment set is a collection of equipment composed of the regulated die lip adjusting rings or combined control unit sets after deviation adjustment.

[0049] It should be noted that since the die lip clearance directly determines the melt extrusion volume, appropriately increasing the die lip clearance can increase the extrusion volume, making the bubble expand more easily and thus adjusting the width. Therefore, this invention achieves fine-tuning of the width by adjusting the die lip adjustment ring. In this invention, the cold air ring pressure regulating unit is responsible for controlling the pressure of the cooling air blown onto the outer wall of the bubble. Changes in air pressure directly affect the cooling rate and expansion capacity of the bubble. For example, increasing the air pressure can accelerate the cooling of the bubble, causing it to solidify at a higher position, thereby limiting further expansion and reducing the width. Decreasing the air pressure slows down the cooling, prolonging the expansion time and increasing the width. The die lip adjustment ring is responsible for adjusting the die lip clearance at the die head outlet. Changes in clearance directly alter the melt extrusion volume and extrusion speed. Increasing the clearance increases the extrusion volume, making the bubble expand more easily and increasing the width. Decreasing the clearance reduces the extrusion volume and decreases the width. Based on the adjustment characteristics of both parameters, when adjusting in combination, the control system determines the adjustment direction and amount according to the width deviation. For example, if the width is too small, the die lip gap can be increased appropriately to improve the extrusion volume, and the cooling air pressure can be reduced to promote bubble expansion and push the width to recover to the deviation threshold. If the width is too large, the reverse adjustment is executed. This dual-parameter linkage adjustment method can avoid problems such as bubble instability and over-adjustment that may be caused by single-parameter adjustment, so that the bubble maintains dynamic balance during extrusion, cooling and expansion, achieving more precise and stable control of the bubble width.

[0050] In detail, the step of using a pre-built programmable logic control module to perform a single-device adjustment operation on a pre-built mold lip adjustment ring to obtain an adjusted mold lip adjustment ring includes: Receive the die head fine-tuning command, and adjust the die lip adjustment ring to increase the die lip gap according to the die head fine-tuning command and the programmable logic control module to obtain the initial die lip gap; If the initial die lip gap is less than the preset target die lip gap value, then return to the step of increasing the die lip gap adjustment operation of the die lip adjustment ring according to the die head fine adjustment command and the programmable logic control module, until the initial die lip gap is equal to the target die lip gap value; If the initial die lip gap is equal to the target die lip gap value, then the die lip adjustment ring is used as the adjusted die lip adjustment ring.

[0051] It should be explained that the die fine-tuning command is used to trigger the die lip adjusting ring to make small adjustments. The die lip adjusting ring is a ring-shaped adjusting component installed at the exit of a variable-diameter die. The die lip adjusting ring can change the size of the die lip gap by rotating or moving, thereby adjusting the thickness and width of the extruded film. The die lip gap increase adjustment operation is an operation that increases the die lip gap at the die exit by rotating or moving the die lip adjusting ring according to a preset increase gap value (e.g., 0.02mm). The initial die lip gap is the current value of the die lip gap after performing the die lip gap increase adjustment operation. The target die lip gap value is the preset target value of the die lip gap. For example, the target die lip gap value is 0.8mm. The adjusted die lip adjusting ring is the die lip adjusting ring whose die lip gap has reached the target die lip gap value after adjustment.

[0052] S4. If there is an instantaneous deviation less than zero in the instantaneous deviation set, then determine whether there is an instantaneous deviation greater than zero in the instantaneous deviation set. If there is no instantaneous deviation greater than zero in the instantaneous deviation set, then take the instantaneous deviation set as the second instantaneous deviation set, and perform the second deviation adjustment operation based on the second instantaneous deviation set to obtain the second control device set.

[0053] It should be explained that if there are instantaneous deviations less than zero in the instantaneous deviation set, it indicates that the actual production width of the bubble film is greater than the target forming width, and the deviation direction is positively offset, indicating that the width is too large. Further judgment is needed to determine whether there is a positive deviation in order to decide whether to enter the second deviation adjustment process. The second instantaneous deviation set is the set of all negative instantaneous deviations when there are instantaneous deviations less than zero and no instantaneous deviations greater than zero in the instantaneous deviation set.

[0054] Specifically, the second deviation adjustment operation based on the second instantaneous deviation set to obtain the second control device set includes: Calculate the second average deviation value of the second instantaneous deviation set, and determine the negative deviation threshold based on the deviation threshold; If the second average deviation value is greater than or equal to the negative deviation threshold, a fine-tuning command for the traction roller is received. Based on the fine-tuning command for the traction roller and the pre-built embedded control unit, the spacing of the first traction roller is tightened to obtain the adjusted traction roller. If the second average deviation value is less than the negative deviation threshold, the first traction roller and the die lip adjustment ring are combined and adjusted to obtain the second combined control unit set, wherein the second combined control unit set includes: a normal spacing traction roller and a second normal die lip adjustment ring; The second set of control equipment is identified based on the already controlled traction roller or the second set of combined control units.

[0055] It should be explained that the second average deviation value is the average of all instantaneous deviation values ​​in the second instantaneous deviation set, calculated using an arithmetic mean. The negative deviation threshold is the opposite of the deviation threshold. If the second average deviation value is greater than or equal to the negative deviation threshold, it indicates that although the current width deviation may be biased in the negative direction, it is still within an acceptable range, and the degree of deviation is minor. It can be corrected by fine-tuning the traction roller, without the need for large-scale combined adjustments. The traction roller fine-tuning command is a control command used to trigger the first traction roller to perform a small-scale pitch adjustment. The pitch tightening operation is an operation that appropriately reduces the pitch between the upper and lower rollers of the first traction roller to increase the clamping force and traction tension on the membrane bubble, thereby further stretching the membrane bubble during traction to achieve the purpose of reducing the width or adjusting the thickness. The adjusted traction roller is the first traction roller after the pitch tightening operation. If the second average deviation value is less than the negative deviation threshold, it indicates that the width deviation is relatively large, and fine-tuning the traction roller alone cannot effectively correct it. It is necessary to adjust the traction roller and the die lip adjustment ring simultaneously for combined control. The embedded control unit is a controller used for fine-tuning the pitch of the traction roller.

[0056] Importantly, the combined adjustment of the first traction roller and the die lip adjusting ring is based on the direction and degree of the current width deviation. It involves simultaneously adjusting the spacing of the first traction roller and the die lip gap of the die lip adjusting ring, ensuring their adjustment effects complement each other to quickly correct the width deviation. For example, when the width is too small, the die lip gap can be appropriately increased to increase the extrusion volume, making the film bubble expand more easily. Simultaneously, the traction roller spacing can be appropriately tightened to increase traction tension, keeping the film bubble stable during longitudinal stretching. When the width is too large, the adjustment is performed in the opposite direction. This combined adjustment avoids the instability or over-adjustment problems that may result from single adjustments, maintaining balance during extrusion, traction, and expansion, thus achieving more precise width control. The normal spacing traction roller is the first traction roller after the combined adjustment, ensuring stable traction tension. The second normal die lip adjusting ring is the die lip adjusting ring after the combined adjustment of the first traction roller and the die lip adjusting ring. The second control equipment set is a collection of equipment consisting of the adjusted traction rollers or the second combined control unit set after the second deviation adjustment operation.

[0057] S5. Based on the first set of control equipment or the second set of control equipment, identify the control equipment set and obtain the current effective production width according to the control equipment set.

[0058] It should be explained that the control equipment set is either the first control equipment set or the second control equipment set. The process of obtaining the current effective production width based on the control equipment set involves, after completing the first or second deviation adjustment, measuring the actual width of the bubble film after adjustment in real time using a width detection device (such as a photoelectric sensor or laser rangefinder) installed on the control equipment set.

[0059] S6. Adjust the equipment based on the current effective production width to obtain a set of normally operating equipment. Use the set of normally operating equipment to prepare products and obtain bubble bags. Based on the bubble bags, complete the control of bubble bag production equipment based on width adaptive adjustment.

[0060] In detail, the process of adjusting equipment based on the current effective production width to obtain a set of normally operating equipment includes: The downstream equipment set has been identified, which includes: printing unit equipment set, longitudinal slitting unit equipment set and transverse sealing and bag making unit equipment set, wherein the transverse sealing and bag making unit equipment set includes: servo telescopic mechanism and cutter. Calculate the lateral movement displacement based on the current effective production width and the preset standard base width, and adjust the printing unit equipment set laterally according to the lateral movement displacement to obtain the adjusted printing unit equipment set. The servo telescopic mechanisms of the longitudinal slitting unit equipment set and the transverse sealing and bag making unit equipment set are adjusted to obtain the adjusted slitting unit equipment set and the adjusted servo telescopic mechanism. The adjusted equipment set was identified based on the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism. The adjusted equipment set is then corrected a second time to obtain the normally operating equipment set.

[0061] It should be explained that a printing unit equipment set refers to a collection of printing unit equipment used for printing on the surface of bubble wrap. For example, a printing unit equipment set includes, but is not limited to, printing presses, printing plate rollers, and impression rollers. A longitudinal slitting unit equipment set refers to a collection of equipment used to longitudinally slit wide bubble wrap into multiple narrow strips. For example, a longitudinal slitting unit equipment set includes, but is not limited to, slitting blades, blade holders, and traction rollers. A servo telescopic mechanism, driven by a servo motor, is used to adjust the effective working length of the sealing blade and the cutting blade. The cutting blade is used to cut the bubble wrap after transverse sealing. The standard base width is a pre-set reference width used as a reference value for calculating the transverse movement of the printing unit. The transverse movement displacement is the displacement obtained by dividing the absolute difference between the current effective production width and the standard base width by 2. The process of transversely adjusting the printing unit equipment set based on the transverse movement displacement involves reading the value and direction of the transverse movement displacement, and then driving the transverse adjustment mechanism to move the printing press, printing plate rollers, impression rollers, and other components transversely, with the distance of movement matching the transverse movement displacement. An adjusted printing unit equipment set is a collection of printing unit equipment whose lateral position has been adjusted based on the lateral movement displacement.

[0062] In detail, the step of adjusting the servo telescopic mechanisms of the longitudinal slitting unit equipment set and the transverse sealing and bag-making unit equipment set to obtain the adjusted slitting unit equipment set and the adjusted servo telescopic mechanism includes: Calculate the centerline position based on the current effective production width, and adjust the position of each cutting unit in the longitudinal cutting unit equipment set according to the centerline position to obtain the adjusted cutting unit equipment set; The difference between the current effective production width and the preset fixed shrinkage is calculated to obtain the target sealing knife length. Based on the target sealing knife length, the sealing knife length of the servo telescopic mechanism of the transverse sealing and bag making unit is adjusted to obtain the adjusted servo telescopic mechanism.

[0063] It should be explained that the centerline position is the value obtained by dividing the current effective production width by 2. Moving the longitudinal slitting unit equipment set according to the centerline position involves driving the longitudinal slitting units to move laterally based on the centerline position of the bubble wrap, aligning the slitting blade position with the target slitting line. The fixed shrinkage amount is the fixed width shrinkage value generated by the bubble wrap during heat sealing and cooling, used to correct the sealing blade length and avoid deviations in the finished bag size. The adjusted slitting unit equipment set is the collection of longitudinal slitting unit equipment after the slitting blade position has been adjusted according to the centerline position. The target sealing blade length is the value obtained by subtracting the fixed shrinkage amount from the current effective production width, used to ensure that the heat sealing position completely covers the width of the bubble wrap. Adjusting the sealing blade length of the servo telescopic mechanism according to the target sealing blade length involves the control system sending a control signal to the servo telescopic mechanism based on the target sealing blade length, causing the servo motor to drive the sealing blade bracket to extend and retract laterally, making the effective working length of the sealing blade consistent with the target sealing blade length. The adjusted servo telescopic mechanism is the servo telescopic mechanism whose effective working length of the sealing blade matches the target sealing blade length after the sealing blade length adjustment. The adjusted equipment set is a collection of equipment consisting of the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism.

[0064] In detail, the secondary correction of the adjusted equipment set to obtain the normally operating equipment set includes: The adjusted equipment set is monitored in real time to obtain monitoring parameters, including: printing position deviation, cutting position deviation and sealing position deviation; If the monitoring parameters do not meet the preset standard monitoring parameter range conditions, a second correction operation is performed based on the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism to obtain the initial correction equipment set. The initial correction equipment set is then used as the adjusted equipment set, and the process returns to the step of real-time monitoring of the adjusted equipment set until the monitoring parameters meet the preset standard monitoring parameter range conditions. If the monitoring parameters meet the preset standard monitoring parameter range conditions, then the adjusted equipment set will be regarded as the normal operating equipment set.

[0065] It should be explained that printing position deviation is the lateral offset between the actual printed pattern position on the bubble wrap and the lateral movement displacement. Cutting position deviation is the deviation between the actual cutting position of the longitudinal cutting unit and the target cutting position calculated based on the centerline position. Sealing position deviation is the deviation between the actual heat-sealing and cutting position of the transverse sealing and bag-making unit and the target sealing blade length. If the monitoring parameters do not meet the preset standard monitoring parameter range conditions, it indicates that the printing position deviation is not within the preset normal printing position deviation range (e.g., ±1.0mm), the cutting position deviation is not within the preset normal cutting position deviation range (e.g., ±0.5mm), or the sealing position deviation is not within the preset normal sealing position deviation range (e.g., ±1.0mm). The standard monitoring parameter range conditions include the normal printing position deviation range, the normal cutting position deviation range, and the normal sealing position deviation range. The steps for the secondary correction operation based on the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism are as follows: When the monitored parameters do not conform to the standard monitoring parameter range, the control system further fine-tunes the printing unit, the longitudinal slitting unit, and the servo telescopic mechanism according to the current deviation direction and amount. For example, if the printing position deviation is not within the normal printing position deviation range, the lateral adjustment mechanism of the printing unit is driven again for position correction; if the slitting position deviation is not within the normal slitting position deviation range, the lateral position of the longitudinal slitting unit is adjusted again; if the sealing and cutting position deviation is not within the normal sealing and cutting position deviation range, the sealing blade length or lateral position of the servo telescopic mechanism is adjusted again to make the working positions of the sealing blade and the cutting blade consistent with the target position. Through this targeted secondary correction, residual deviations after equipment adjustment can be further eliminated, making the position of each unit more accurate. The initial correction equipment set is the equipment set after the secondary correction operation, in which the positions of the printing unit, the slitting unit, and the servo telescopic mechanism have been further adjusted. The normal operation equipment set is the adjusted equipment set whose monitored parameters conform to the preset standard monitoring parameter range conditions.The normal printing position deviation range, normal slitting position deviation range, and normal sealing position deviation range are set as follows: The normal printing position deviation range is usually set according to the maximum offset of the printed pattern registration. For conventional bubble wrap printing (such as single or two-color), the normal printing position deviation range is ±1.0mm. If it is high-precision multi-color registration, the normal printing position deviation range is ±0.5mm. This value is equal to the cumulative error range between the printing roller and the film material caused by tension fluctuations and thermal expansion. The normal slitting position deviation range is based on the mechanical alignment accuracy of the slitting tool. The transverse shrinkage characteristics of the film material are set, generally ±0.5mm, which is the offset between the slitting blade and the target cutting edge line. This value must be less than half of the sealing and cutting alignment tolerance of the subsequent bag making process (usually ±1.0mm) to ensure that the cutting edge does not invade the effective width area. The normal sealing and cutting position deviation range is set according to the relative position accuracy between the heat sealing blade and the cutting blade and the size tolerance of the finished bag, and is usually ±1.0mm, which is the deviation between the actual position of the sealing and cutting action and the preset sealing and cutting line. This value must ensure that the fluctuation of the sealing width does not affect the airtightness and the bag length error is controlled within ±2mm.

[0066] It should be noted that in the above steps of the present invention, the closed-loop control method of real-time monitoring and secondary correction can effectively eliminate minor deviations after equipment adjustment, ensure accurate printing position, stable cutting size, and consistent sealing position, thereby improving overall production accuracy and product quality.

[0067] To address the problems described in the background art, this invention receives a preparation instruction, confirms the preparation parameters and preparation equipment set based on the instruction, calculates an instantaneous deviation set based on the parameters and equipment set, and determines whether there is an instantaneous deviation less than a preset zero value within the set. By calculating the instantaneous deviation set, this invention can reflect the difference between the current production width and the target width in real time, providing data for subsequent adjustments. Determining whether there is an instantaneous deviation less than zero quickly identifies whether the width has shifted negatively, thus deciding whether to enter the corresponding deviation adjustment process, improving the timeliness and accuracy of adjustment. If there is no instantaneous deviation less than zero in the set, this set is used as the first instantaneous deviation set, and a first deviation adjustment operation is performed based on this set to obtain a first control equipment set. This invention, by performing the first deviation adjustment operation based on the first instantaneous deviation set, can effectively reduce the tendency for the width to be too large, allowing the width to quickly converge to the target range, improving the stability and accuracy of width control. If there is an instantaneous deviation less than zero in the set, it is then determined whether there is an instantaneous deviation greater than zero. If the instantaneous deviation of the value is not greater than zero, then the instantaneous deviation set is taken as the second instantaneous deviation set. A second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain the second control equipment set. This invention further determines whether there are instantaneous deviations greater than zero, distinguishing whether the width deviation is simply too small or involves both positive and negative fluctuations, thus selecting a more suitable adjustment method. Using all negative deviations as the second instantaneous deviation set and performing the second deviation adjustment operation effectively corrects the problem of a small width, restoring the width to the target value. The control equipment set is identified based on the first or second control equipment set. The current effective production width is obtained based on the control equipment set. This invention, through the current effective production width, can reflect the actual width after adjustment in real time, enabling downstream equipment to make precise adjustments based on the actual production state, improving the overall production line's synergy. Equipment adjustment is performed based on the current effective production width to obtain the normal operating equipment set. The normal operating equipment set is used for product preparation to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed. Therefore, this invention can improve the flexibility and intelligence level of the equipment.

[0068] like Figure 2 The diagram shown is a functional block diagram of a bubble bag production equipment control system based on adaptive width adjustment provided in an embodiment of the present invention.

[0069] The bubble bag production equipment control system 100 based on adaptive width adjustment described in this invention can be installed in an electronic device. Depending on the functions implemented, the bubble bag production equipment control system 100 may include a parameter equipment confirmation module 101, a preparation equipment control module 102, a production width acquisition module 103, and an equipment adjustment completion module 104. The module described in this invention can also be called a unit, which refers to a series of computer program segments that can be executed by the processor of an electronic device and can perform a fixed function, and which are stored in the memory of the electronic device. The parameter and equipment confirmation module 101 is used to receive preparation instructions and confirm the preparation parameters and preparation equipment set according to the preparation instructions. The preparation equipment control module 102 is used to calculate an instantaneous deviation set based on the preparation parameters and the preparation equipment set, determine whether there is an instantaneous deviation in the instantaneous deviation set that is less than a preset zero value, and if there is no instantaneous deviation in the instantaneous deviation set that is less than zero value, then the instantaneous deviation set is used as a first instantaneous deviation set, and a first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain a first control equipment set; if there is an instantaneous deviation in the instantaneous deviation set that is less than zero value, then it is determined whether there is an instantaneous deviation in the instantaneous deviation set that is greater than zero value, and if there is no instantaneous deviation in the instantaneous deviation set that is greater than zero value, then the instantaneous deviation set is used as a second instantaneous deviation set, and a second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain a second control equipment set; The production width acquisition module 103 is used to identify the control equipment set based on the first control equipment set or the second control equipment set, and to obtain the current effective production width according to the control equipment set. The equipment adjustment completion module 104 is used to adjust the equipment based on the current effective production width to obtain a set of normally operating equipment, use the set of normally operating equipment to prepare products, obtain bubble bags, and complete the control of bubble bag production equipment based on width adaptive adjustment based on the bubble bags.

[0070] In detail, the modules in the bubble bag production equipment control system 100 based on width adaptive adjustment described in this embodiment of the invention adopt the same characteristics as described above during use. Figure 1 The method used is the same as the control method for bubble bag production equipment based on adaptive width adjustment described in the article, and can produce the same technical effect, so it will not be repeated here.

[0071] like Figure 3 The diagram shown is a schematic representation of an electronic device for implementing a control method for bubble bag production equipment based on adaptive width adjustment, according to an embodiment of the present invention.

[0072] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a control method program for bubble bag production equipment based on width adaptive adjustment.

[0073] The memory 11 includes at least one type of readable storage medium, such as flash memory, portable hard drive, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as the portable hard drive of the electronic device 1. In other embodiments, the memory 11 can be an external storage device of the electronic device 1, such as a plug-in portable hard drive, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the electronic device 1. Furthermore, the memory 11 includes both internal storage units and external storage devices of the electronic device 1. The memory 11 can be used not only to store application software and various types of data installed on the electronic device 1, such as the code of a control method program for bubble bag production equipment based on width adaptive adjustment, but also to temporarily store data that has been output or will be output.

[0074] In some embodiments, the processor 10 may be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor 10 is the control unit of the electronic device, connecting various components of the entire electronic device through various interfaces and lines. It executes programs or modules stored in the memory 11 (e.g., a control method program for bubble bag production equipment based on adaptive width adjustment), and calls data stored in the memory 11 to perform various functions of the electronic device 1 and process data.

[0075] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0076] Figure 3 Only electronic devices with components are shown; it will be understood by those skilled in the art that... Figure 3 The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0077] For example, although not shown, the electronic device 1 may also include a power supply (such as a battery) to power the various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, thereby enabling functions such as charging management, discharging management, and power consumption management. The power supply may also include one or more DC or AC power supplies, recharging devices, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be described in detail here.

[0078] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a Wi-Fi interface, a Bluetooth interface, etc.), which is typically used to establish communication connections between the electronic device 1 and other electronic devices.

[0079] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), and optionally, a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen, etc. The display may also be appropriately referred to as a screen or display unit, used to display information processed in the electronic device 1 and to display a visual user interface.

[0080] The control method program for bubble bag production equipment based on adaptive width adjustment, stored in the memory 11 of the electronic device 1, is a combination of multiple instructions. When run in the processor 10, it can achieve the following: Receive the preparation instructions and confirm the preparation parameters and preparation equipment set based on the preparation instructions; The instantaneous deviation set is calculated based on the preparation parameters and the preparation equipment set, and it is determined whether there are any instantaneous deviations in the instantaneous deviation set that are less than the preset zero value; If there is no instantaneous deviation less than zero in the instantaneous deviation set, then the instantaneous deviation set is taken as the first instantaneous deviation set, and the first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain the first control device set; If there is an instantaneous deviation less than zero in the instantaneous deviation set, then it is determined whether there is an instantaneous deviation greater than zero in the instantaneous deviation set. If there is no instantaneous deviation greater than zero in the instantaneous deviation set, then the instantaneous deviation set is used as the second instantaneous deviation set, and a second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain the second control device set. The control equipment set is determined based on the first control equipment set or the second control equipment set, and the current effective production width is obtained based on the control equipment set. Based on the current effective production width, the equipment is adjusted to obtain a set of normally operating equipment. The normally operating equipment set is used to prepare products to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed.

[0081] Specifically, the processor 10's implementation method for the above instructions can be found in [reference needed]. Figures 1 to 3 The descriptions of the relevant steps in the corresponding embodiments are not repeated here.

[0082] Furthermore, if the modules / units integrated in the electronic device 1 are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0083] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor of an electronic device, can perform the following: Receive the preparation instructions and confirm the preparation parameters and preparation equipment set based on the preparation instructions; The instantaneous deviation set is calculated based on the preparation parameters and the preparation equipment set, and it is determined whether there are any instantaneous deviations in the instantaneous deviation set that are less than the preset zero value; If there is no instantaneous deviation less than zero in the instantaneous deviation set, then the instantaneous deviation set is taken as the first instantaneous deviation set, and the first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain the first control device set; If there is an instantaneous deviation less than zero in the instantaneous deviation set, then it is determined whether there is an instantaneous deviation greater than zero in the instantaneous deviation set. If there is no instantaneous deviation greater than zero in the instantaneous deviation set, then the instantaneous deviation set is used as the second instantaneous deviation set, and a second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain the second control device set. The control equipment set is determined based on the first control equipment set or the second control equipment set, and the current effective production width is obtained based on the control equipment set. Based on the current effective production width, the equipment is adjusted to obtain a set of normally operating equipment. The normally operating equipment set is used to prepare products to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed.

[0084] In the embodiments provided by this invention, it should be understood that the disclosed devices, systems, and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative, and actual implementations may have other classification methods.

[0085] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0086] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional modules.

[0087] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A control method for bubble bag production equipment based on adaptive width adjustment, characterized in that, The method includes: Receive the preparation instructions and confirm the preparation parameters and preparation equipment set based on the preparation instructions; The instantaneous deviation set is calculated based on the preparation parameters and the preparation equipment set. It is then determined whether there is an instantaneous deviation in the instantaneous deviation set that is less than a preset zero value. The instantaneous deviation is the value obtained by subtracting the width of the bubble film from the target molding width. If there is no instantaneous deviation less than zero in the instantaneous deviation set, then the instantaneous deviation set is taken as the first instantaneous deviation set, and the first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain the first control device set; The first deviation adjustment operation based on the first instantaneous deviation set to obtain the first control device set includes: Calculate the first average deviation value of the first instantaneous deviation set, and compare the first average deviation value with a preset deviation threshold; If the first average deviation value is less than or equal to the deviation threshold, then the pre-built programmable logic control module is used to perform a single device adjustment operation on the pre-built mold lip adjustment ring to obtain the adjusted mold lip adjustment ring. If the first average deviation value is greater than the deviation threshold, a synchronous adjustment command for the mold head air pressure is received. Based on the synchronous adjustment command for the mold head air pressure, the pre-constructed cold air ring air pressure adjustment unit and the mold lip adjustment ring are combined and adjusted to obtain a first set of combined control units. The first set of combined control units includes: a normal air pressure adjustment unit and a first normal mold lip adjustment ring. The first set of control devices is identified based on the already controlled mold lip adjustment ring or the first set of combined control units; If there is an instantaneous deviation less than zero in the instantaneous deviation set, then it is determined whether there is an instantaneous deviation greater than zero in the instantaneous deviation set. If there is no instantaneous deviation greater than zero in the instantaneous deviation set, then the instantaneous deviation set is used as the second instantaneous deviation set, and a second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain the second control device set. The control equipment set is determined based on the first control equipment set or the second control equipment set, and the current effective production width is obtained based on the control equipment set. Based on the current effective production width, the equipment is adjusted to obtain a set of normally operating equipment. The normally operating equipment set is used to prepare products to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed.

2. The control method for bubble bag production equipment based on adaptive width adjustment as described in claim 1, characterized in that, The calculation of the instantaneous deviation set based on the preparation parameters and the preparation equipment set includes: Based on the preparation parameters and preparation equipment set, the shaped bubble film and the target shaped width are prepared. The shaped bubble film is image acquired using a preset acquisition frequency to obtain the shaped bubble film image set. Image pixel processing is performed on each formed bubble film image in the formed bubble film image set to obtain the bubble film width set; Calculate the instantaneous deviation between each bubble width and the target forming width in the bubble width set to obtain the instantaneous deviation set.

3. The control method for bubble bag production equipment based on adaptive width adjustment as described in claim 2, characterized in that, The preparation of the bubble film and the target forming width based on the preparation parameters and preparation equipment set includes: The theoretical total width is calculated based on the preparation parameters and the preset number of horizontal layouts. The total loss is calculated based on the preset edge sealing width, the preset edge cutting loss, and the number of horizontal layouts. The target forming width is calculated based on the theoretical total width and the total loss. The target molding ratio parameters are determined based on the pre-constructed material type and the preset expected thin film mechanical properties. The flat width of the membrane tube is obtained by dividing the target molding width by the preset pi. The target opening diameter of the die head is calculated based on the flat width of the membrane tube and the target forming ratio parameters. The equipment set for preparation is then calibrated and adjusted based on the flat width of the membrane tube and the target opening diameter of the die head to obtain the calibrated equipment set for preparation. According to the type of material to be prepared, the raw materials are obtained, and the equipment preheating operation is performed on the calibration equipment set to obtain the preheated equipment set. The raw materials are pre-processed using preheated equipment to obtain shaped bubble film.

4. The control method for bubble bag production equipment based on adaptive width adjustment as described in claim 3, characterized in that, The process of using a pre-built programmable logic control module to perform a single-device adjustment operation on a pre-built die lip adjustment ring to obtain an adjusted die lip adjustment ring includes: Receive the die head fine-tuning command, and adjust the die lip adjustment ring to increase the die lip gap according to the die head fine-tuning command and the programmable logic control module to obtain the initial die lip gap; If the initial die lip gap is less than the preset target die lip gap value, then return to the step of increasing the die lip gap adjustment operation of the die lip adjustment ring according to the die head fine adjustment command and the programmable logic control module, until the initial die lip gap is equal to the target die lip gap value; If the initial die lip gap is equal to the target die lip gap value, then the die lip adjustment ring is used as the adjusted die lip adjustment ring.

5. The control method for bubble bag production equipment based on adaptive width adjustment as described in claim 4, characterized in that, The second deviation adjustment operation based on the second instantaneous deviation set, to obtain the second control device set, includes: Calculate the second average deviation value of the second instantaneous deviation set, and determine the negative deviation threshold based on the deviation threshold; If the second average deviation value is greater than or equal to the negative deviation threshold, a fine-tuning command for the traction roller is received. Based on the fine-tuning command for the traction roller and the pre-built embedded control unit, the spacing of the first traction roller is tightened to obtain the adjusted traction roller. If the second average deviation value is less than the negative deviation threshold, the first traction roller and the die lip adjustment ring are combined and adjusted to obtain the second combined control unit set, wherein the second combined control unit set includes: a normal spacing traction roller and a second normal die lip adjustment ring; The second set of control equipment is identified based on the already controlled traction roller or the second set of combined control units.

6. The control method for bubble bag production equipment based on adaptive width adjustment as described in claim 5, characterized in that, The process of adjusting equipment based on the current effective production width to obtain a set of normally operating equipment includes: The downstream equipment set has been identified, which includes: printing unit equipment set, longitudinal slitting unit equipment set and transverse sealing and bag making unit equipment set, wherein the transverse sealing and bag making unit equipment set includes: servo telescopic mechanism and cutter. Calculate the lateral movement displacement based on the current effective production width and the preset standard base width, and adjust the printing unit equipment set laterally according to the lateral movement displacement to obtain the adjusted printing unit equipment set. The servo telescopic mechanisms of the longitudinal slitting unit equipment set and the transverse sealing and bag making unit equipment set are adjusted to obtain the adjusted slitting unit equipment set and the adjusted servo telescopic mechanism. The adjusted equipment set was identified based on the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism. The adjusted equipment set is then corrected a second time to obtain the normally operating equipment set.

7. The control method for bubble bag production equipment based on adaptive width adjustment as described in claim 6, characterized in that, The step of adjusting the servo telescopic mechanism of the longitudinal slitting unit equipment set and the transverse sealing and bag-making unit equipment set to obtain the adjusted slitting unit equipment set and the adjusted servo telescopic mechanism includes: Calculate the centerline position based on the current effective production width, and adjust the position of each cutting unit in the longitudinal cutting unit equipment set according to the centerline position to obtain the adjusted cutting unit equipment set; The difference between the current effective production width and the preset fixed shrinkage is calculated to obtain the target sealing knife length. Based on the target sealing knife length, the sealing knife length of the servo telescopic mechanism of the transverse sealing and bag making unit is adjusted to obtain the adjusted servo telescopic mechanism.

8. The control method for bubble bag production equipment based on adaptive width adjustment as described in claim 7, characterized in that, The process of performing a secondary correction on the adjusted equipment set to obtain a normally operating equipment set includes: The adjusted equipment set is monitored in real time to obtain monitoring parameters, including: printing position deviation, cutting position deviation and sealing position deviation; If the monitoring parameters do not meet the preset standard monitoring parameter range conditions, a second correction operation is performed based on the adjusted printing unit equipment set, the adjusted slitting unit equipment set, and the adjusted servo telescopic mechanism to obtain the initial correction equipment set. The initial correction equipment set is then used as the adjusted equipment set, and the process returns to the step of real-time monitoring of the adjusted equipment set until the monitoring parameters meet the preset standard monitoring parameter range conditions. If the monitoring parameters meet the preset standard monitoring parameter range conditions, then the adjusted equipment set will be regarded as the normal operating equipment set.

9. A system applied to the control method for bubble bag production equipment based on adaptive width adjustment as described in claim 1, characterized in that, The system includes: The parameter and equipment confirmation module is used to receive preparation instructions and confirm the preparation parameters and preparation equipment set based on the preparation instructions. The preparation equipment control module is used to calculate an instantaneous deviation set based on preparation parameters and a preparation equipment set, determine whether there is an instantaneous deviation in the instantaneous deviation set that is less than a preset zero value, and if there is no instantaneous deviation in the instantaneous deviation set that is less than zero value, then the instantaneous deviation set is used as a first instantaneous deviation set, and a first deviation adjustment operation is performed based on the first instantaneous deviation set to obtain a first control equipment set; if there is an instantaneous deviation in the instantaneous deviation set that is less than zero value, then it is determined whether there is an instantaneous deviation in the instantaneous deviation set that is greater than zero value, and if there is no instantaneous deviation in the instantaneous deviation set that is greater than zero value, then the instantaneous deviation set is used as a second instantaneous deviation set, and a second deviation adjustment operation is performed based on the second instantaneous deviation set to obtain a second control equipment set; The production width acquisition module is used to identify the control equipment set based on the first control equipment set or the second control equipment set, and to obtain the current effective production width based on the control equipment set. The equipment adjustment completion module is used to adjust the equipment based on the current effective production width to obtain a set of normally operating equipment. The normally operating equipment set is used to prepare products to obtain bubble bags. Based on the bubble bags, the bubble bag production equipment control based on width adaptive adjustment is completed.

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