Coating system and coating method

Abstract

The application discloses a coating system and a coating method. The coating system determines a target roll to be wound based on state parameters of each chuck in a winding device for clamping the roll; and controls the winding device to change the roll in order to wind the material by the target roll when it is determined that the current coating process parameters meet the roll changing condition. The state parameters of each chuck, the coating process parameters and the roll changing condition are used to automatically switch the winding device to wind the material by the target roll, thereby greatly improving the automation degree of roll changing.

Description

Technical Field

[0001] This application relates to the field of coating, specifically to a coating system and coating method. Background Technology

[0002] Electrode sheets are the foundation of power batteries, affecting their electrochemical performance and safety. Electrode sheets typically consist of a current collector and a coating applied to the current collector. Currently, the common process for preparing electrode sheets involves coating a slurry onto the current collector, drying the organic solvent in the slurry, and then winding the slurry into a roll using a winding device.

[0003] The start and end of winding of the winding device are usually controlled manually, that is, the change of roll is determined by the human, which results in a relatively low degree of automation of the winding device.

[0004] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art. Summary of the Invention

[0005] In view of the above problems, embodiments of this application provide a coating system and coating method to improve the automation level of roll changing.

[0006] A first aspect of this application provides a coating system, comprising:

[0007] Winding device, drive device, unwinding device, and coating machine controller;

[0008] The driving device is used to drive the material unwound by the unwinding device to move toward the winding device, and the winding device is used to wind up the material;

[0009] The coating machine controller is used to acquire the status parameters of each clamp used to hold the roll in the winding device, and based on the status parameters, to determine the target roll to be wound in the winding device; when it is determined that the current coating process parameters meet the roll changing conditions, the controller controls the winding device to change the roll so as to wind the material through the target roll.

[0010] In the solution provided in this embodiment, the target roll to be wound is determined based on the state parameters of each chuck used to hold the roll in the winding device. If the current coating process parameters meet the roll-changing conditions, the winding device is controlled to change rolls to wind up the material through the target roll. By using state parameters, coating process parameters, and roll-changing conditions, automatic switching to the target roll for material winding is achieved in the winding device, greatly improving the automation level of roll changing.

[0011] In some embodiments, the coating machine controller is used for:

[0012] Obtain the diameter of the target roll;

[0013] From the roll-changing conditions, obtain the target roll-changing conditions that have a mapping relationship with the roll diameter of the target roll;

[0014] If it is determined that the current coating process parameters meet the target roll change conditions, then the current coating process parameters meet the roll change conditions.

[0015] In the solution provided in this embodiment, the target roll change condition is determined by the roll diameter of the target roll, and the current coating process parameters are judged using the target roll change condition. Since the target roll change condition matches the roll diameter of the target roll, the judgment result is more accurate compared to judging the current coating process parameters using other roll change conditions that do not match the roll diameter of the target roll.

[0016] In some embodiments, the coating system further includes:

[0017] A cutting device is used to cut the material passing through the cutting device when it is determined that the current coating process parameters meet the roll-changing conditions;

[0018] The coating machine controller is used for:

[0019] The cutting action of the cutting device is detected, and it is determined that the coating process parameters meet the target roll-changing conditions.

[0020] Based on the fact that no cutting action of the cutting device was detected, and the coating state parameters included in the coating process parameters satisfy the target roll change conditions, it is determined that the coating process parameters satisfy the target roll change conditions.

[0021] The solution provided in this embodiment clarifies the determination of target roll changing conditions based on the cutting action of the cutter device and the coating state parameters. This not only realizes automatic roll changing but also has a simple and easy-to-implement solution that can be applied to actual working conditions.

[0022] In some embodiments, the coating machine controller is further configured to:

[0023] If the current coating process parameters are determined to meet the roll change conditions, a roll change signal is generated. The roll change signal is used to indicate the acquisition of the film roll information of the material being wound up on the target roll.

[0024] In the solution provided in this embodiment, compared to manually changing the roll and then manually operating the host computer of the coating system to create a new film roll sheet, this embodiment controls the film roll sheet information of the material being rolled up by the target roll by generating a roll change signal after the roll is wound up. This greatly shortens the interval between the roll winding and the creation of the film roll sheet, and improves the consistency between the roll material and the film roll sheet information on the target roll.

[0025] In some embodiments, the coating system further includes a process control system;

[0026] The coating machine controller is also used for:

[0027] Once it is determined that the process control system has obtained the film roll information based on the roll change signal, the status parameters corresponding to the clamps holding the target roll are updated.

[0028] The solution provided in this embodiment updates the status parameters corresponding to the chuck of the target roll, which not only facilitates the accurate determination of the new target roll, but also reduces unnecessary processing steps by updating the timing of this update. For example, if the status parameters are updated after a period of time after obtaining the film roll information, the current target roll will inevitably be identified as the new target roll when determining the new target roll. Although the current target roll can be excluded through the subsequent roll-changing conditions, both the exclusion process and the process of determining it as the new target roll will complicate the entire process.

[0029] In some embodiments, the coating machine controller includes a display screen for displaying a film roll management interface, the film roll management interface including a mode configuration component;

[0030] The coating machine controller is used to perform the following steps when the user configures the winding mode of the target roll to automatic mode through the mode configuration component: acquiring the status parameters of each clamp used to hold the roll in the winding device; determining the target roll to be wound in the winding device based on the status parameters; and controlling the winding device to change rolls to wind the material through the target roll when it is determined that the current coating process parameters meet the roll changing conditions.

[0031] In the solution provided in this embodiment, the mode configuration component allows users to choose between manual or automatic roll changing according to their actual needs, which helps to improve the flexibility of roll changing.

[0032] In some embodiments, the film roll management interface further includes a roll diameter display component;

[0033] The roll diameter display component is used to allow users to configure the roll diameter threshold in the roll change conditions.

[0034] In the solution provided in this embodiment, a roll diameter display component is set on the roll management interface so that users can configure the roll diameter threshold in the roll changing conditions, which helps users set the roll changing conditions according to their own needs.

[0035] In some embodiments, the membrane roll management interface further includes a new membrane roll assembly and a roll change signal invalidation display assembly;

[0036] The coating machine controller is further configured to, when the target roll is not empty, within a preset time period for generating the roll change signal, detect a user-triggered new roll command through the new roll creation component, and mark the roll change signal as valid if the new roll creation command is detected; if the new roll creation command is not detected within the preset time period for generating the roll change signal, display indication information indicating that the roll change signal is invalid through the roll change signal invalid display component, and set identification information to characterize the use of roll sheet information from the most recent winding process.

[0037] In this embodiment, the accuracy of the membrane roll information of the target roll can be improved by marking the roll change signal through the new membrane roll command of the new membrane roll assembly.

[0038] In some embodiments, the coating machine controller is used for:

[0039] When the selected target menu item in the menu bar of the display screen is "Automatic Control" and the selected sub-menu item in the target menu item is "Membrane Roll Information", the membrane roll management interface is displayed.

[0040] In the solution provided in this embodiment, the settings of menu items and sub-menu items in the display screen interface enable the display screen interface to not only display the film roll management interface, but also to display other interfaces as needed, which helps to improve the utilization rate of the display screen.

[0041] In some embodiments, the winding device includes:

[0042] A turret, a first shaft and a second shaft of the turret, a first chuck on the first shaft, and a second chuck on the second shaft;

[0043] The first chuck is used to clamp the first spool, and the second chuck is used to clamp the second spool;

[0044] The coating machine controller is used to acquire the status parameters of the first chuck and the second chuck; and based on the status parameters of the first chuck and the second chuck, to determine the target roll from the first roll and the second roll.

[0045] The winding device provided in this embodiment supports multiple rolls through the structure of the turret and shaft, laying the foundation for automatic roll changing.

[0046] In some embodiments, the coating system further includes:

[0047] Coating die head and coating oven;

[0048] The coating die head is used to coat the material that has passed through the coating die head;

[0049] The coating oven is used to bake the material coated by the coating die.

[0050] In the solution provided in this embodiment, the material is coated by a coating die and a coating oven, which helps to improve the coating efficiency of the coating system.

[0051] A second aspect of this application provides a coating method applied to the coating system described in the first aspect, the method comprising:

[0052] The status parameters of each clamp used to hold the roll in the winding device are obtained through the coating machine controller;

[0053] Based on the state parameters, the coating machine controller determines the target roll to be wound in the winding device;

[0054] When the coating machine controller determines that the current coating process parameters meet the roll-changing conditions, it controls the winding device to change the roll so as to wind up the material through the target roll.

[0055] In some embodiments, determining that the current coating process parameters meet the roll change conditions via the coating machine controller includes:

[0056] The roll diameter of the target roll is obtained through the coating machine controller;

[0057] From the roll-changing conditions, the coating machine controller obtains target roll-changing conditions that have a mapping relationship with the roll diameter of the target roll;

[0058] If the coating machine controller determines that the current coating process parameters meet the target roll change conditions, then the current coating process parameters meet the roll change conditions.

[0059] In some embodiments, the coating system further includes a cutting device;

[0060] Determining whether the current coating process parameters meet the target roll change conditions through the coating machine controller includes:

[0061] The cutting action of the cutting device is detected, and the coating machine controller determines that the coating process parameters meet the target roll-changing conditions.

[0062] Based on the fact that no cutting action of the cutting device was detected, and the coating state parameters included in the coating process parameters meet the target roll change conditions, the coating machine controller determines that the coating process parameters meet the target roll change conditions.

[0063] In some embodiments, the method further includes:

[0064] If the current coating process parameters are determined to meet the roll-changing conditions, the coating machine controller generates a roll-changing signal, which is used to indicate the acquisition of the film roll information of the roll material being wound up on the target roll.

[0065] In some embodiments, the coating system further includes a process control system;

[0066] The method further includes:

[0067] Once the process control system has determined that it has obtained the film roll information based on the roll change signal, the coating machine controller updates the status parameters corresponding to the clamps holding the target roll.

[0068] In some embodiments, the coating system further includes a display screen; the coating machine controller is configured to display a film roll management interface on the display screen; the film roll management interface includes a new film roll component; the new film roll component is configured to allow a user to trigger a new film roll command;

[0069] The method further includes:

[0070] When the target roll is not empty, within a preset time period for generating the roll change signal, the new roll creation component detects the user-triggered new roll creation command, and if the new roll creation command is detected, the roll change signal is marked as valid; if the new roll creation command is not detected within the preset time period for generating the roll change signal, the roll change signal invalidation display component displays indication information indicating that the roll change signal is invalid, and sets identification information to characterize the use of the roll sheet information from the most recent winding process.

[0071] In some embodiments, the method further includes:

[0072] When the selected target menu item in the menu bar of the display screen is "Automatic Control" and the selected sub-menu item in the target menu item is "Membrane Roll Information", the membrane roll management interface is displayed.

[0073] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0074] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0075] In the attached diagram:

[0076] Figure 1 A schematic diagram of a coating system provided in one or more embodiments of this application;

[0077] Figure 2 A schematic diagram of the interface of a display screen provided in one or more embodiments of this application;

[0078] Figure 3 A schematic diagram of a winding device provided for one or more embodiments of this application;

[0079] Figure 4 A schematic diagram of a winding device is provided for one or more embodiments of this application;

[0080] Figure 5 A schematic flowchart of a coating method provided in one or more embodiments of this application;

[0081] Figure 6 This is another schematic flowchart illustrating a coating method provided in one or more embodiments of this application;

[0082] Figure 7 This is another schematic flowchart illustrating a coating method provided in one or more embodiments of this application. Detailed Implementation

[0083] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0085] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0086] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0087] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0088] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0089] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an integral part of this sustainable development. For electric vehicles, battery technology is another crucial factor in their development.

[0090] Electrode sheets are the foundation of power batteries, affecting their electrochemical performance and safety. Electrode sheets typically consist of a current collector and a coating applied to the current collector. Currently, the common process for preparing electrode sheets involves coating a slurry onto the current collector, drying the organic solvent in the slurry, and then winding the slurry into a roll using a winding device.

[0091] The start and end of winding of the winding device are usually controlled manually. Therefore, even if multiple rolls can be installed in the winding device and multiple rolls can switch between each other to achieve winding, the switching of rolls is also judged and implemented manually, which results in a relatively low degree of automation of the winding device.

[0092] To improve the automation level of roll changing, one or more embodiments of this application provide a coating system that determines the target roll to be wound based on the state parameters of each chuck used to hold the roll in the winding device; and controls the winding device to change the roll to wind the material through the target roll when it is determined that the current coating process parameters meet the roll changing conditions. By using the state parameters of each chuck, the coating process parameters, and the roll changing conditions, the system achieves automatic switching in the winding device to the target roll to wind the material, greatly improving the automation level of roll changing.

[0093] The coating system disclosed in this application includes, but is not limited to, winding up materials such as paper, cloth, plastic film, current collector, and battery electrode sheets, and controlling the winding device to achieve automatic roll changing during the winding process.

[0094] like Figure 1 As shown, the coating system may include:

[0095] The winding device 11, the drive device 12, the unwinding device 13, and the coating machine controller 14;

[0096] The drive device 12 is used to drive the material unwound by the unwinding device 13 to move toward the winding device 11, and the winding device 11 is used to wind up the material.

[0097] The coating machine controller 14 is used to acquire the status parameters of each chuck in the winding device 11 used to hold the roll, and based on the status parameters, to determine the target roll to be wound in the winding device 11; when it is determined that the current coating process parameters meet the roll changing conditions, the controller controls the winding device 11 to change the roll so as to wind up the material through the target roll.

[0098] In this embodiment, the state parameters of the chuck indicate whether the chuck is holding a roll or not. When a roll requires one chuck to hold it, the state parameters of that chuck determine whether the roll is the target roll. When a roll requires multiple chucks to hold it, the state parameters of the multiple chucks jointly determine whether the roll is the target roll. For example, it can be set that the roll is determined to be the target roll only when the state parameters of multiple chucks all indicate that the chuck is holding a roll.

[0099] In this embodiment, different state parameters of the chuck can be distinguished by different parameter values. For example, a state parameter value of 1 indicates that the chuck is holding a roll, while a state parameter value of 0 indicates that the chuck is not holding a roll. Different state parameters of the chuck can also be distinguished by the address where the state parameter is stored. For example, a state parameter stored at a first address indicates that the chuck is holding a roll, while a state parameter stored at a second address indicates that the chuck is not holding a roll.

[0100] In this embodiment, the target roll to be wound is a roll in the winding device that is not currently being wound with material. This target roll can be empty or not empty. An empty roll refers to a target roll without any material wound on it, while a not empty roll refers to a target roll with material wound on it. In practical applications, during the winding process with an empty roll, if abnormal material is detected in the wound material, the roll with the abnormal material can be removed from the winding device to remove the abnormal material. Then, the roll is clamped onto the chuck. Since the roll clamped onto the chuck still has material wound on it in this situation, when this roll is identified as the target roll, it is considered a not empty roll.

[0101] In this embodiment, the target roll can be determined to be either empty or non-empty based on its diameter. For an empty roll, since no material is wound on it, its diameter is usually within a set diameter range. For a non-empty roll, since some material is wound on it, its diameter is larger than that of an empty roll, and it also usually falls within a set diameter range. It should be understood that the minimum value of the diameter range used to determine whether a roll is non-empty is greater than the maximum value of the diameter range used to determine whether a roll is empty. For example, the diameter range used to determine whether a roll is empty can be set to (200, 400), and the diameter range used to determine whether a roll is non-empty can be set to [400, +∞), where the unit of diameter is mm.

[0102] In this embodiment, the roll change condition table indicates that the target roll in the winding device has the conditions to wind up the material in the coating system, and that no other rolls are being wound up in the winding device. It should be understood that no other rolls are being wound up in the winding device, including various situations such as the current roll having finished winding up, and other rolls not yet starting to wind up after being assembled into the winding device by the chuck.

[0103] In actual operation, for a winding drum, the completion of winding is determined by parameters including, but not limited to, the length of material wound on the drum, the winding time, and the drum diameter. For example, during the winding process, the start time is typically recorded, and a meter counter is used to count the length of material wound since the start of winding, as well as the drum diameter. Therefore, when the winding time calculated based on the start time exceeds a time threshold, the length of material wound exceeds a length threshold, or the drum diameter exceeds a diameter threshold, winding can be considered complete. It should be understood that the drum diameter is the overall diameter of the drum and the material wound on it. The time threshold, length threshold, and diameter threshold can all be preset based on experience or actual needs.

[0104] In actual operation, after other rolls being wound have finished winding, if the focus shifts to winding the target roll, the chucks used to hold the other rolls will clamp onto another target roll to be wound, allowing the focus to shift to that other target roll after its winding is complete. To reduce resource consumption in the coating system, the timing of the chucks clamping the other target roll, or the timing of the chucks preparing to wind the other target roll after clamping it, can be indicated by the target roll's winding end time. For example, the winding end time of the target roll can be estimated based on the length of material already wound on the target roll, the winding duration, or the roll diameter. Then, a preset duration can be extracted based on this winding end time to control the chucks to clamp the other target roll or to control the other target roll already clamped to prepare for winding. The preset duration can be set manually based on experience or according to actual needs.

[0105] In this embodiment, "roll changing" refers to two consecutive winding operations. The rolls used for these two winding operations can be the same roll or different rolls. Taking a winding device including roll A and roll B as an example, if roll A is identified as the target roll while roll B is being wound, and the current coating process parameters meet the roll changing conditions, roll A is used for winding. In this case, the rolls used for the two winding operations are different rolls, i.e., roll A and roll B. If roll A is identified as the target roll while roll B is being wound, and abnormal material is detected on roll B before the winding operation ends, roll B needs to be disassembled to remove the abnormal material. Then, to reduce material waste, roll B, which still has some normal material wound on it after removing the abnormal material, is usually reassembled into the winding device and used to continue winding material. Normally, when roll B is removed from the winding device, it is considered that one winding of the roll is completed. Therefore, in this case, the rolls wound before and after are the same roll.

[0106] In the solution provided in this embodiment, the target roll to be wound is determined based on the state parameters of each chuck used to hold the roll in the winding device. If the current coating process parameters meet the roll-changing conditions, the winding device is controlled to change rolls to wind up the material through the target roll. By using state parameters, coating process parameters, and roll-changing conditions, automatic switching to the target roll for material winding is achieved in the winding device, greatly improving the automation level of roll changing.

[0107] According to some embodiments of this application, the coating machine controller 14 is used for:

[0108] Obtain the diameter of the target roll;

[0109] From the roll-changing conditions, obtain the target roll-changing conditions that have a mapping relationship with the roll diameter of the target roll;

[0110] If the current coating process parameters meet the target roll change conditions, then the current coating process parameters meet the roll change conditions.

[0111] In actual operation, when the target roll to be wound is empty, an adhesive area is provided on the empty roll. The conveyor belt in the coating system can automatically adhere the material to this adhesive area when the material is wound onto the target roll, so that it can be wound onto the target roll. However, when the target roll to be wound is not empty, there is some wound material on the non-empty roll, so it is impossible to set an adhesive area on the non-empty roll. This means that the conveyor belt cannot automatically adhere the material to the target roll. In this case, manual conveyor belt operation is required, that is, manually adhering the material to the target roll for winding onto the target roll. The roll-changing conditions for judging the current coating process parameters are different in these two cases. Therefore, when determining whether the current coating process parameters meet the roll-changing conditions, the target roll-changing conditions are first determined based on the roll diameter of the target roll, and then the current coating process parameters are used to determine whether the roll-changing conditions are met.

[0112] In this embodiment, the judgment logic in different target roll-changing conditions may partially overlap or be completely different. The coating process parameters involved in different roll-changing conditions may overlap or be completely different.

[0113] In this embodiment, the mapping relationship between roll diameter and roll change conditions is preset. To simplify calculations and meet actual working conditions, the roll diameter in the preset mapping relationship can actually be a roll diameter range. For example, the roll diameter range for determining an empty roll described above corresponds to one roll change condition, and the roll diameter range for determining a non-empty roll described above corresponds to another roll change condition. According to this mapping relationship, when obtaining the target roll change condition that has a mapping relationship with the roll diameter of the target roll, the target roll diameter range to which the roll diameter of the target roll belongs can be determined first. Then, the preset mapping relationship can be queried using the target roll diameter range to obtain the roll change condition corresponding to the target roll diameter range, and the roll change condition corresponding to the target roll diameter range can be used as the target roll change condition.

[0114] In the solution provided in this embodiment, the target roll change condition is determined by the roll diameter of the target roll, and the current coating process parameters are judged using the target roll change condition. Since the target roll change condition matches the roll diameter of the target roll, the judgment result is more accurate compared to judging the current coating process parameters using other roll change conditions that do not match the roll diameter of the target roll.

[0115] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0116] According to some embodiments of this application, such as Figure 1 As shown, the coating system may also include:

[0117] The cutting device 15 is used to cut the material passing through the cutting device 15 when it is determined that the current coating process parameters meet the roll changing conditions.

[0118] The coating machine controller 14 is used for:

[0119] The cutting action of the cutting device 15 is detected, and it is determined that the coating process parameters meet the target roll-changing conditions;

[0120] Based on the fact that no cutting action of the cutting device 15 was detected, and the coating state parameters included in the coating process parameters meet the target roll change conditions, it is determined that the coating process parameters meet the target roll change conditions.

[0121] In this embodiment, the cutting action of the cutting device 15 indicates that the winding of the roll in the winding device 11 has ended. In other words, the cutting action can also be used as a condition to determine whether the winding of the roll has ended. When the cutting device 15 has a cutting action, the material transmitted to the cutting device 15 is cut off, so the winding of the roll in the winding device 11 has ended.

[0122] In this embodiment, the cutting action of the cutter device 15 can also indicate that the target roll is empty. As mentioned earlier, when the target roll in the winding device 11 is not empty, the target roll needs to be manually connected. Therefore, in this case, after the roll being wound in the winding device 11 is finished, the entire winding device 11 needs to be stopped, the tape needs to be manually cut, and then the target roll needs to be connected. When the target roll in the winding device 11 is empty, since the connection can be automatically achieved by the connection device, it is not necessary to stop the winding device 11. The cutter device 15 can be directly controlled to cut the tape, and the connection device can be controlled to automatically connect the target roll. Therefore, when the cutting action of the cutter device 15 is present, it can be determined that the target roll in the winding device 11 is empty.

[0123] In this embodiment, as mentioned above, when the cutting device 15 has a cutting action, the roll being wound in the winding device 11 automatically ends winding. Since the roll being wound is being wound normally before the cutting device 15 is activated, this indicates that the winding device 11 can operate normally and the coating equipment in the coating system (such as the coating die head and slurry valve) is also coating the material normally. Therefore, in this case, once the cutting device 15 is activated, it is considered that the coating process parameters meet the roll change conditions, and the roll can be wound through the target roll. In the case where the cutting device 15 does not initiate a cutting action and the winding device 11 needs to be stopped, the coating process parameters before the winding device 11 stops are no longer relevant. In other words, before the winding device 11 stops, it can wind normally and the coating equipment can coat the material normally. However, it cannot be guaranteed that after the winding device 11 stops and restarts, it can still wind normally and the coating equipment can still coat the material. Therefore, in this case, it is necessary to use the coating status parameters in the coating process parameters to determine the target roll change conditions.

[0124] In this embodiment, the coating state parameters are parameters that affect the coating process. In practical applications, the coating state reference includes, but is not limited to, the following three aspects: the wound material is coated with slurry, the target roll is not idling, and the target roll speed is not manually controlled. The wound material being coated with slurry can be reflected by parameters characterizing the working state of the coating die and / or parameters characterizing whether the slurry valve is open; the target roll not idling can be reflected by the belt tension; and the target roll speed not being manually controlled can be reflected by the rotation speed of the turret shaft. Specifically, the rotation speed of the turret shaft indicates that the roll is not manually rotated, the belt tension indicates that the roll is not idling, and the coating die and slurry valve indicate that the belt is not idling. In actual operation, the rotation speed of the turret shaft can be acquired by an encoder, the belt tension can be acquired by a tension sensor, and the working state of the coating die and slurry valve can be characterized by their action signals.

[0125] In this embodiment, based on the specific implementation of the above coating state parameters, when it is determined that the rotation speed is greater than the rotation speed threshold, the belt tension is greater than the belt tension threshold, the coating die head is open, and the slurry valve is open, it is determined that the coating state parameters meet the target roll changing conditions.

[0126] The solution provided in this embodiment clarifies the determination of target roll changing conditions based on the cutting action of the cutter device and the coating state parameters. This not only realizes automatic roll changing but also has a simple and easy-to-implement solution that can be applied to actual working conditions.

[0127] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0128] According to some embodiments of this application, the coating machine controller 14 is also used for:

[0129] If the current coating process parameters meet the roll change conditions, a roll change signal is generated. The roll change signal is used to indicate the acquisition of the film roll information of the material to be wound on the target roll.

[0130] In this embodiment, the film roll information includes, but is not limited to, film roll number and film roll slip data. The film roll number uniquely identifies the roll material being wound by the target roll. Except in special cases, even rolls obtained from the same roll in different winding cycles will have different film roll numbers, and rolls obtained from different rolls will also have different film roll numbers. A special case where rolls obtained from the same roll in two winding cycles may use the same film roll number is as follows: the roll obtained during the current winding process has a film roll number; during the winding process, an abnormal roll is detected in the already wound roll. In this case, the roll is removed from the winding device to remove the abnormal roll. To reduce roll waste, the roll, still containing some normal material, is usually reassembled into the winding device. In this situation, when it is necessary to determine the film roll slip number of the roll on the roll, the film roll number from the previous winding process can be used. That is, the film roll number corresponding to the rolls obtained from the same roll in different winding cycles is the same.

[0131] In this embodiment, the film roll sheet corresponds one-to-one with the film roll number and is used to record the roll material's inspection data. To understand the quality of the roll material, the coating system uses inspection equipment to inspect the material during the coating process and records the obtained data. Taking any side of the material as an example, after applying slurry to any side through the coating die and slurry valve, the weight of the material can be measured using a surface density meter. Based on this weight and the original weight of the material, parameters such as the weight of the slurry applied to any side and the coating density can be obtained. These parameters reflect the coating quality and characterize the quality of the roll material.

[0132] In this embodiment, the generation of a volume change signal includes, but is not limited to, writing data to a specific address or writing data to a set bit of the data. For example, a volume change signal can be generated by writing 1 to a set register address.

[0133] In the solution provided in this embodiment, compared to manually changing the roll and then manually operating the host computer of the coating system to create a new film roll sheet, this embodiment controls the film roll sheet information of the material being rolled up by the target roll by generating a roll change signal after the roll is wound up. This greatly shortens the interval between the roll winding and the creation of the film roll sheet, and improves the consistency between the roll material and the film roll sheet information on the target roll.

[0134] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0135] According to some embodiments of this application, the coating system further includes a process control system 16;

[0136] The coating machine controller 14 is also used for:

[0137] Once it is determined that the process control system 16 has obtained the film roll information based on the roll change signal, the status parameters corresponding to the clamps holding the target roll are updated.

[0138] In this embodiment, the connection state corresponding to the clamp holding the target roll has different meanings before and after the update. For example, the connection state before the update indicates that the clamp is holding the target roll, while the connection state after the update indicates that the clamp is not holding the target roll; conversely, the connection state before the update indicates that the clamp is not holding the target roll, while the connection state after the update indicates that the clamp is holding the target roll.

[0139] The solution provided in this embodiment updates the status parameters corresponding to the chuck of the target roll, which not only facilitates the accurate determination of the new target roll, but also reduces unnecessary processing steps by updating the timing of this update. For example, if the status parameters are updated after a period of time after obtaining the film roll information, the current target roll will inevitably be identified as the new target roll when determining the new target roll. Although the current target roll can be excluded through the subsequent roll-changing conditions, both the exclusion process and the process of determining it as the new target roll will complicate the entire process.

[0140] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0141] According to some embodiments of this application, the coating machine controller 14 includes a display screen, such as... Figure 2 As shown, the display screen is used to display the membrane roll management interface 21, which includes a mode configuration component 211.

[0142] The coating machine controller 14 is used to perform the following steps when the user configures the winding mode of the target roll to be automatic through the mode configuration component 211: acquiring the status parameters of each clamp used to hold the roll in the winding device, determining the target roll to be wound in the winding device based on the status parameters, and controlling the winding device to change the roll to wind the material through the target roll when it is determined that the current coating process parameters meet the roll changing conditions.

[0143] In this embodiment, the mode configuration component 211 includes a roll information display component and a mode selection component. The information displayed by the roll information display component is used to uniquely identify a roll in the winding device. The mode selection component is used to allow the user to select the roll changing mode of the roll. The mode selection component supports the user to select one of two modes: manual mode and automatic mode.

[0144] In the solution provided in this embodiment, the mode configuration component allows users to choose between manual or automatic roll changing according to their actual needs, which helps to improve the flexibility of roll changing.

[0145] According to some embodiments of this application, such as Figure 2 As shown, the membrane roll management interface 21 also includes a roll diameter display component 212;

[0146] The roll diameter display component 212 is used to allow users to configure the roll diameter threshold in roll change conditions.

[0147] In the solution provided in this embodiment, a roll diameter display component is set on the roll management interface so that users can configure the roll diameter threshold in the roll changing conditions, which helps users set the roll changing conditions according to their own needs.

[0148] According to some embodiments of this application, such as Figure 2 As shown, the membrane roll management interface 21 also includes a new membrane roll assembly 213 and an invalid roll change signal display assembly 214;

[0149] The coating machine controller 14 is also configured to, when the target roll is not empty, within a preset time period for generating the roll change signal, detect the user-triggered new roll command through the new roll assembly 213, and mark the roll change signal as valid if the new roll command is detected; if no new roll command is detected within the preset time period for generating the roll change signal, display indication information indicating that the roll change signal is invalid through the roll change signal invalid display assembly 214, and set identification information to characterize the use of the roll sheet information from the most recent winding process.

[0150] As mentioned above, the material carried on the roll includes at least two scenarios: first, the roll is removed from the winding device during the winding process, abnormal material is removed, and then it is reassembled into the winding device; second, the target roll to be wound carries material. In the first scenario, since the same roll is used for both windings, there is no need to waste time creating a new roll order information process. However, in the second scenario, since it is difficult to determine when the material on the target roll was wound, a new roll order information process is needed to create a new roll order information process when winding through the target roll. Based on these at least two scenarios, within a preset time period for generating the roll change signal, the user triggers a new roll order command via a new roll assembly to determine whether to automatically generate the roll order information corresponding to the target roll. When a new roll order command triggered by the user is received within the preset time period, the roll change signal is marked as valid, so that the roll order information corresponding to the target roll can be automatically generated.

[0151] In this embodiment, the accuracy of the membrane roll information of the target roll can be improved by marking the roll change signal through the new membrane roll command of the new membrane roll assembly.

[0152] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0153] According to some embodiments of this application, the coating machine controller 14 is used for:

[0154] When the target menu item selected in the menu bar 221 of the display screen interface 22 is automatic control, and the sub-menu item selected in the target menu item is membrane roll information, the membrane roll management interface 21 is displayed.

[0155] In the solution provided in this embodiment, the settings of menu items and sub-menu items in the display screen interface enable the display screen interface to not only display the film roll management interface, but also to display other interfaces as needed, which helps to improve the utilization rate of the display screen.

[0156] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0157] According to some embodiments of this application, such as Figure 3 and Figure 4 As shown, the winding device 11 includes:

[0158] Turret 31, first rotating shaft 32 and second rotating shaft 33 disposed on turret 31, first chuck 34 disposed on first rotating shaft 32, and second chuck (not shown in the figure) disposed on second rotating shaft 33;

[0159] The first chuck 34 is used to clamp the first roll, and the second chuck 35 is used to clamp the second roll;

[0160] The coating machine controller 14 is used to acquire the status parameters of the first chuck 34 and the second chuck 35; based on the status parameters of the first chuck 34 and the second chuck 35, the target roll is determined from the first roll and the second roll.

[0161] The winding device provided in this embodiment supports multiple rolls through the structure of the turret and shaft, laying the foundation for automatic roll changing.

[0162] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0163] According to some embodiments of this application, such as Figure 1 As shown, the coating system also includes:

[0164] Coating die 17 and coating oven 18;

[0165] Coating die 17 is used to coat the material that has passed through the coating die 17;

[0166] The coating oven 18 is used to bake the material coated by the coating die 17.

[0167] In the solution provided in this embodiment, the material is coated by a coating die and a coating oven, which helps to improve the coating efficiency of the coating system.

[0168] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0169] According to some embodiments of this application, a coating method is provided, which can be applied to the aforementioned coating system, such as... Figure 5 As shown, the method may include the following steps:

[0170] Step 501: Obtain the status parameters of each clamp used to hold the roll in the winding device through the coating machine controller;

[0171] Step 502: Based on the state parameters, determine the target roll to be wound in the winding device through the coating machine controller;

[0172] Step 503: If the coating process parameters are determined by the coating machine controller to meet the roll changing conditions, control the winding device to change the roll so as to wind up the material through the target roll.

[0173] In some embodiments, determining whether the current coating process parameters meet the roll change conditions via the coating machine controller includes:

[0174] The roll diameter of the target roll is obtained through the coating machine controller;

[0175] From the roll changing conditions, the target roll changing conditions that are mapped to the roll diameter of the target roll are obtained through the coating machine controller;

[0176] If the coating process parameters are determined to meet the target roll change conditions by the coating machine controller, then the coating process parameters are determined to meet the roll change conditions.

[0177] In some embodiments, the coating system further includes a cutting device;

[0178] The coating machine controller determines that the current coating process parameters meet the target roll change conditions, including:

[0179] The cutting action of the cutting device is detected, and the coating process parameters are determined by the coating machine controller to meet the target roll changing conditions.

[0180] Based on the fact that no cutting action of the cutting device was detected, and the coating process parameters including the coating state parameters meet the target roll change conditions, the coating machine controller determines that the coating process parameters meet the target roll change conditions.

[0181] In some embodiments, the method further includes:

[0182] If the current coating process parameters meet the roll change conditions, the coating machine controller generates a roll change signal. The roll change signal is used to indicate the film roll information of the target roll to be wound up.

[0183] In some embodiments, the coating system further includes a process control system;

[0184] The method also includes:

[0185] Once it is confirmed that the process control system has obtained the film roll information based on the roll change signal, the status parameters corresponding to the clamps holding the target roll are updated by the coating machine controller.

[0186] In some embodiments, the coating system further includes a display screen; the coating machine controller is used to display a film roll management interface on the display screen; the film roll management interface includes a new film roll assembly; the new film roll assembly is used for users to trigger a new film roll command;

[0187] The method also includes:

[0188] When the target roll is not empty, within a preset time period for generating the roll change signal, the new roll creation component detects the user-triggered new roll creation command, and marks the roll change signal as valid if the new roll creation command is detected; if no new roll creation command is detected within the preset time period for generating the roll change signal, the roll change signal invalidation display component displays indication information indicating that the roll change signal is invalid, and sets identification information to characterize the use of the roll sheet information from the most recent winding process.

[0189] In some embodiments, the method further includes:

[0190] When the target menu item selected in the menu bar of the display screen is "Automatic Control" and the sub-menu item selected in the target menu item is "Membrane Roll Information", the membrane roll management interface is displayed.

[0191] The following example illustrates the analysis process of the coating method. (See attached image.) Figure 6 The flowchart shown here includes the following steps in this specific example:

[0192] Step 601: The winding device has an automatic roll changing function;

[0193] Step 602: Is the automatic roll changing function enabled? If yes, proceed to step 603; otherwise, proceed to step 610.

[0194] Step 603: Pre-changing the drum on axis A in the winding device;

[0195] Step 604: Determine the movement of the A-axis based on the state parameters of the chuck on the A-axis;

[0196] Step 605: When the state parameters of the chuck on the A-axis indicate that the chuck on the A-axis is clamping the drum, set the pre-rewind signal position of the A-axis to 1.

[0197] Step 606: Based on the pre-roll change signal of axis A, determine whether axis A is the target roll to be changed through the roll change logic judgment module. If yes, proceed to step 607; otherwise, proceed to step 608.

[0198] Step 607: Generate roll change signal;

[0199] Step 608: Receive the roll change feedback signal and display it on the touchscreen;

[0200] Step 609: Reset the pre-roll signal bit of axis A;

[0201] Step 610: In manual mode, manually select the shaft in the winding device and manually create a new film roll;

[0202] Step 611: In manual mode, if it is determined that the membrane roll needs to be terminated, send a membrane roll termination signal.

[0203] Among them, the pre-change signal refers to the status parameters of the drum chuck.

[0204] Here, axis A can be any one of the rotating shafts in the roll changing device.

[0205] Among them, such as Figure 7 As shown, the judgment process in the roll-changing logic judgment module in step 606 may include the following steps:

[0206] Step 701: Based on the pre-roll change signal of axis A, determine whether axis A is clamped with a roll; if so, proceed to step 702.

[0207] Step 702: Obtain the diameter of the A-axis drum;

[0208] Step 703: If the diameter of the A-axis roll is greater than or equal to the first value, determine whether the rotation speed of the A-axis winding matches the coating set speed. If so, proceed to step 704.

[0209] Step 704: Determine whether the belt tension of the coating system matches the set belt tension. If yes, proceed to step 705.

[0210] Step 705: Determine whether the die head is in the correct position and whether the slurry valve is open. If yes, proceed to step 706.

[0211] Step 706: Generate a roll change signal and a pop-up dialog box for users to input instructions for creating a new film roll;

[0212] Step 707: The user inputs a new membrane roll command within a preset time period, marks the roll change signal as valid, and creates a new membrane roll;

[0213] Step 708: If the user does not input a new membrane roll command within a preset time period, set an identifier to indicate that the membrane roll information from the most recent winding process is used.

[0214] Step 709: If the diameter of the A-axis roll is greater than or equal to the second value and less than or equal to the first value, and the belt tension of the coating system is normal and the rotation speed of the B-axis is normal, determine whether the cutting action of the cutting device is detected. If so, proceed to step 710.

[0215] Step 710: Generate a roll change signal to create a new film roll;

[0216] Step 711: If the diameter of the A-axis roll is greater than or equal to the second value and less than or equal to the first value, and the belt tension of the coating system is abnormal or the rotation speed of the B-axis is abnormal, determine whether the belt tension of the coating system matches the set belt tension. If so, proceed to step 712.

[0217] Step 712: Determine whether the die head feed is in place and whether the slurry valve is open. If yes, proceed to step 713; otherwise, proceed to step 710.

[0218] Wherein, the first value is greater than the second value. If the judgment result in steps 702, 703-705, 709, 711, and 712 is negative, the process ends.

[0219] The following is based on Figure 3 and Figure 4 Taking a coating system including two rotating shafts as an example, this application describes various schemes for performing the roll-changing method in one or more embodiments.

[0220] for Figure 1 For ease of explanation, the A-axis and B-axis are each represented by a chuck, and the state parameters of the chuck determine whether it clamps the roll. In the scheme that can execute the roll changing method of the embodiment of this application, the state parameters of the chucks of the A-axis and B-axis can be combined in the following three ways.

[0221] The following uses A-axis N to represent the state parameters of the chuck on A-axis, and B-axis N to represent the state parameters of the chuck on B-axis. A-axis 1 indicates that the chuck on A-axis is holding the drum, A-axis 0 indicates that the chuck on A-axis is not holding the drum, B-axis 1 indicates that the chuck on B-axis is holding the drum, and B-axis 0 indicates that the chuck on B-axis is not holding the drum.

[0222] The first combination is A-axis 1 and B-axis 0.

[0223] Under this combination, there are two possible solutions:

[0224] The first approach: A new roll is loaded onto axis A while axis B is winding. The process for initiating a roll changeover on axis A is then initiated. If the diameter of the roll on axis A is greater than a first value (indicating that axis A is not an empty roll), manual connection is required since automatic tape splicing is not possible on axis A. Manual splicing necessitates stopping the winding device, cutting the tape on axis B and connecting it to the empty roll on axis A. Only after confirming that the rotational speed of axis A, the tape tension, and the coating die infeed and slurry valve in the coating system all meet the roll changeover conditions are the roll on axis A used for winding. Specifically, the axis rotational speed meeting the winding conditions indicates that the roll is not being manually adjusted; the tape tension indicates that the tape has been attached to the roll and is not running empty; and the coating die infeed and slurry valve being open indicate that the tape is not running empty. Once these conditions are met, a new film roll is manually selected based on the display interface.

[0225] If the diameter of the A-axis drum is not greater than the first value but greater than the second value, and the first value is greater than the second value (indicating that the A-axis drum is empty), and the B-axis is winding, the cutting action is considered an automatic roll change. If there is no cutting action, after the B-axis finishes winding, the machine must be stopped before it can be manually connected to the A-axis. If the A-axis (A-axis speed, belt tension, coating die infeed and slurry valve) meets the roll change conditions, the A-axis will wind up.

[0226] The second option: If the B-axis has no roll or has been wound up for some time, the B-axis will not rotate at the set conveyor speed; it can only be manually rotated at a low speed. If a new roll is added to the A-axis, and the roll diameter of the A-axis roll is greater than the first value, manual connection is required. Generally, after the A-axis has wound up a certain length, an abnormality in the material is detected. The chuck is opened, the roll is removed, the abnormal material is removed, and the roll is placed back on the A-axis. Once the conditions (A-axis speed, conveyor tension, coating die infeed, and slurry valve) are met, a pop-up window will appear, prompting you to select "continue film winding." If the A-axis roll diameter is not greater than the first value but greater than the second value (the first value being greater than the second value indicates the A-axis roll is empty), and since the B-axis is empty or has finished winding, the speed is mismatched, manual connection is also required. Once the conditions (A-axis speed, conveyor tension, coating die infeed, and slurry valve) are met, the A-axis will wind up the roll.

[0227] The second combination is A-axis 0 and B-axis 1. This combination is similar to the first combination and the related principles are the same, so it will not be explained in detail here.

[0228] The third combination is A-axis 1, B-axis 1.

[0229] Under this combination, there are two possible solutions:

[0230] In the first scheme, a new empty roll is placed on axis A and another on axis B. At this time, the roll diameter will be no greater than the first value and greater than the second value. Since the other axis is not automatically winding, it can only be manually connected to the belt. The axis that first meets the conditions (speed, belt tension, coating die infeed and slurry valve) is used for winding.

[0231] The second approach involves a non-empty roll on axis A and a newly loaded empty roll on axis B. In this case, axis A will be used first, requiring manual reeling. Once axis A meets the conditions, a manual window will pop up allowing users to choose between creating a new roll number (if it's empty foil) or continuing with another roll number (if defective material is rejected and rewound). In special cases, axis B can be used for winding. In this case, axis B is an empty roll. If axis A is already running at the matched speed (indicating that axis A is manually reeling and continuously winding uncoated foil, usually only during the commissioning phase), axis B can automatically reel in the film and create a new roll number. If axis A is not running, axis B can only be manually reeled in, triggering a roll change signal once the conditions are met.

[0232] It should be noted that:

[0233] The term "module" is not intended to be limited to a specific physical form. Depending on the application, a module can be implemented as hardware, firmware, software, and / or a combination thereof. Furthermore, different modules may share common components or even be implemented using the same components. Clear boundaries may or may not exist between different modules.

[0234] The algorithms and displays provided herein are not inherently related to any particular computer, virtual device, or other equipment. Various general-purpose devices can also be used with the examples based on this. The required structure for constructing such devices is obvious from the above description. Furthermore, this application is not directed to any particular programming language. It should be understood that the content of this application described herein can be implemented using various programming languages, and the above description of specific languages ​​is for the purpose of disclosing the best mode of implementation of this application.

[0235] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0236] The above embodiments merely illustrate the implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A coating system, characterized in that, include: Winding device, drive device, unwinding device, and coating machine controller; The driving device is used to drive the material unwound by the unwinding device to move toward the winding device, and the winding device is used to wind up the material; The coating machine controller is used to acquire the status parameters of each clamp in the winding device for holding the roll, and based on the status parameters, determine the target roll to be wound in the winding device; based on the fact that no cutting action of the cutting device is detected, and the rotation speed of the turret shaft is greater than the rotation speed threshold, the belt tension is greater than the belt tension threshold, the coating die head is open, and the slurry valve is open, it is determined that the current coating process parameters meet the roll changing conditions. If the current coating process parameters meet the roll-changing conditions, the winding device is controlled to change the roll to wind up the material through the target roll; the absence of a cutting action detected by the cutting device indicates that the target roll is not empty.

2. The coating system according to claim 1, characterized in that, The coating machine controller is used to: obtain the roll diameter of the target roll; and obtain target roll changing conditions that have a mapping relationship with the roll diameter of the target roll from the roll changing conditions. If it is determined that the current coating process parameters meet the target roll change conditions, then the current coating process parameters meet the roll change conditions.

3. The coating system according to claim 2, characterized in that, The coating system also includes: A cutting device is used to cut the material passing through the cutting device when it is determined that the current coating process parameters meet the roll-changing conditions; The coating machine controller is used to: detect the cutting action of the cutter device and determine that the coating process parameters meet the target roll-changing conditions.

4. The coating system according to claim 1, characterized in that, The coating machine controller is also used for: If the current coating process parameters are determined to meet the roll change conditions, a roll change signal is generated. The roll change signal is used to indicate the acquisition of the film roll information of the material being wound up on the target roll.

5. The coating system according to claim 4, characterized in that, The coating system also includes a process control system; The coating machine controller is also used for: Once it is determined that the process control system has obtained the film roll information based on the roll change signal, the status parameters corresponding to the clamps holding the target roll are updated.

6. The coating system according to claim 4, characterized in that, The coating machine controller includes a display screen, which is used to display a film roll management interface, and the film roll management interface includes a mode configuration component. The coating machine controller is used to, when the user configures the winding mode of the target roll to be automatic through the mode configuration component, acquire the status parameters of each clamp used to hold the roll in the winding device, and determine the target roll to be wound in the winding device based on the status parameters. The step of controlling the winding device to change the roll to wind up the material through the target roll, provided that the current coating process parameters meet the roll-changing conditions.

7. The coating system according to claim 6, characterized in that, The membrane roll management interface also includes a roll diameter display component; The roll diameter display component is used to allow users to configure the roll diameter threshold in the roll change conditions.

8. The coating system according to claim 6, characterized in that, The membrane roll management interface also includes a new membrane roll assembly and a roll change signal invalidation display assembly; The coating machine controller is further configured to, when the target roll is not empty, within a preset time period for generating the roll change signal, detect a user-triggered new roll command through the new roll creation component, and mark the roll change signal as valid if the new roll creation command is detected; if the new roll creation command is not detected within the preset time period for generating the roll change signal, display indication information indicating that the roll change signal is invalid through the roll change signal invalid display component, and set identification information to characterize the use of roll sheet information from the most recent winding process.

9. The coating system according to claim 6, characterized in that, The coating machine controller is used for: When the selected target menu item in the menu bar of the display screen is "Automatic Control" and the selected sub-menu item in the target menu item is "Membrane Roll Information", the membrane roll management interface is displayed.

10. The coating system according to any one of claims 1-9, characterized in that, The winding device includes: A turret, a first shaft and a second shaft of the turret, a first chuck on the first shaft, and a second chuck on the second shaft; The first chuck is used to clamp the first spool, and the second chuck is used to clamp the second spool; The coating machine controller is used to acquire the status parameters of the first chuck and the second chuck; and based on the status parameters of the first chuck and the second chuck, to determine the target roll from the first roll and the second roll.

11. The coating system according to any one of claims 1-9, characterized in that, The coating system also includes: Coating die head and coating oven; The coating die head is used to coat the material that has passed through the coating die head; The coating oven is used to bake the material coated by the coating die.

12. A coating method, characterized in that, The method, applied to the coating system according to any one of claims 1-11, comprises: The status parameters of each clamp used to hold the roll in the winding device are obtained through the coating machine controller; Based on the state parameters, the coating machine controller determines the target roll to be wound in the winding device; The coating machine controller determines that the current coating process parameters meet the roll-changing conditions based on the absence of a detected cutting action from the cutting device, the rotational speed of the turret shaft being greater than a speed threshold, the belt tension being greater than a belt tension threshold, the coating die being open, and the slurry valve being open. When the coating machine controller determines that the current coating process parameters meet the roll-changing conditions, it controls the winding device to change the roll to wind up the material through the target roll. The absence of a detected cutting action from the cutting device indicates that the target roll is not empty.

13. The coating method according to claim 12, characterized in that, The coating machine controller determines that the current coating process parameters meet the roll change conditions, including: The roll diameter of the target roll is obtained through the coating machine controller; From the roll-changing conditions, the coating machine controller obtains target roll-changing conditions that have a mapping relationship with the roll diameter of the target roll; If the coating machine controller determines that the current coating process parameters meet the target roll change conditions, then the current coating process parameters meet the roll change conditions.

14. The coating method according to claim 13, characterized in that, The coating system also includes a cutting device; Determining whether the current coating process parameters meet the target roll change conditions through the coating machine controller includes: The cutting action of the cutting device is detected, and the coating machine controller determines that the coating process parameters meet the target roll-changing conditions.

15. The coating method according to any one of claims 12-14, characterized in that, The method further includes: If the current coating process parameters are determined to meet the roll-changing conditions, the coating machine controller generates a roll-changing signal, which is used to indicate the acquisition of the film roll information of the roll material being wound up on the target roll.

16. The coating method according to claim 15, characterized in that, The coating system also includes a process control system; The method further includes: Once the process control system has determined that it has obtained the film roll information based on the roll change signal, the coating machine controller updates the status parameters corresponding to the clamps holding the target roll.

17. The coating method according to claim 15, characterized in that, The coating system also includes a display screen; the coating machine controller is used to display a film roll management interface through the display screen; the film roll management interface includes a new film roll component; the new film roll component is used for users to trigger a new film roll command; The method further includes: When the target roll is not empty, within a preset time period for generating the roll change signal, the new roll creation component detects the user-triggered new roll creation command, and if the new roll creation command is detected, the roll change signal is marked as valid; if the new roll creation command is not detected within the preset time period for generating the roll change signal, the roll change signal invalidation display component displays indication information indicating that the roll change signal is invalid, and sets identification information to characterize the use of the roll sheet information from the most recent winding process.

18. The coating method according to claim 17, characterized in that, The method further includes: When the selected target menu item in the menu bar of the display screen is "Automatic Control" and the selected sub-menu item in the target menu item is "Membrane Roll Information", the membrane roll management interface is displayed.

Images