Coating system and coating method

Abstract

According to the coating system, a driving device is adopted to drive materials to move from an unwinding device to a winding device, collecting equipment is adopted to collect material parameters of the materials, a control device predicts the winding moment of the materials, and the material parameters are stored in a film form corresponding to the materials at the winding moment. As the material parameters of the material are stored based on the winding moment of the material, the situation that the film roll sheets are inconsistent with the film rolls due to the fact that the material parameters of the material are stored before the material is wound by the coating and winding device can be greatly reduced.

Description

Technical Field

[0001] The present application relates to the field of coating, and in particular to a coating system and a coating method. Background Art

[0002] Electrode plates are the basis of power batteries and affect the electrochemical performance and safety of power batteries. Electrode plates usually include a current collector and a coating applied on the current collector. Currently, the electrode plates are usually prepared by applying a slurry on the current collector and drying the organic solvent in the slurry.

[0003] During the preparation process, the electrode sheet can be presented in the form of a film roll. Each film roll has a unique corresponding film form, which records the material parameters of the film roll. Currently, the problem of inconsistent data between the film roll and the film roll form often occurs.

[0004] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Summary of the invention

[0005] In view of the above problems, the embodiments of the present application provide a system and a coating method to reduce the degree of inconsistency between the data in the film roll and the film roll list during the coating process.

[0006] In a first aspect, the present application provides a coating system, comprising: an unwinding device, a driving device, a collecting device, a winding device and a control device;

[0007] The driving device is used to drive the material unwound by the unwinding device to move toward the rewinding device, and the rewinding device is used to rewind the material;

[0008] The collecting device is used to collect material parameters of the material passing through the collecting device;

[0009] The control device is used to predict the winding moment of the material by the winding device based on the coating process parameters, and at the winding moment, store the material parameters obtained from the acquisition device into the film form corresponding to the material.

[0010] In the solution provided in this embodiment, since the material parameters of the material are stored based on the material winding moment, the material parameters stored before the material is wound by the coating and winding device can be greatly reduced, resulting in inconsistency between the film roll list and the film roll.

[0011] In some embodiments, the control device includes: a host computer and a slave computer;

[0012] The lower computer is used to obtain the driving parameters of the driving device and transmit the driving parameters to the upper computer;

[0013] The host computer is used to obtain the material parameters from the acquisition device; based on the drive parameters and the pre-configured distance parameters, predict the winding moment of the material by the winding device, and at the winding moment, store the material parameters in the film form corresponding to the material; the distance parameter is used to indicate the transmission distance between the acquisition device and the winding device.

[0014] In the solution provided in this embodiment, the control device in the coating system is implemented by a host computer and a slave computer, and the host computer and the slave computer interact with different devices in the coating system respectively, which helps to improve the reliability of the control device.

[0015] In some embodiments, the host computer is used to:

[0016] Based on the driving parameter and the distance parameter, predict the transmission time required for the material to be transmitted from the collecting device to the winding device;

[0017] The winding time is calculated based on the transmission time and the collection time when the collection device collects the material parameters.

[0018] In the solution provided in this embodiment, the transmission time from the collection device to the winding device is calculated, and then the winding time is calculated, which can improve the accuracy of the determined winding time.

[0019] In some embodiments, the host computer is used to:

[0020] Based on the speed collection period included in the driving parameters and the speeds collected in each speed collection period, calculating the target distance of the material to be transported in each speed collection period;

[0021] Calculating the cumulative number of acquisitions based on the target distance and the distance parameter;

[0022] The transmission duration is obtained by calculating the product of the cumulative number of acquisition times and the rotation speed acquisition period.

[0023] In the solution provided in this embodiment, the cumulative collection period is calculated through multiple speed collection periods and the speed in each collection period, and then the transmission time is calculated. This calculation method takes into account the situation that the speed of the drive device is not constant in actual working conditions, so this calculation method is more in line with the actual working conditions of the drive device, thereby improving the accuracy of the transmission time finally calculated.

[0024] In some embodiments, the coating system further comprises:

[0025] A cutter device, used to determine whether the roll changing condition is currently met and cut off the material passing through the cutter device;

[0026] The control device is also used to control the winding device to switch to a new roll and create a film form corresponding to the new roll.

[0027] In the solution provided in this embodiment, a cutting device is used in the coating system to cut the material, which can improve the coating efficiency compared with manual cutting of the material. In addition, the control device controls the winding device to automatically switch to a new roll and creates a film list corresponding to the new roll, thereby realizing automatic roll change of the winding device and improving the coating efficiency.

[0028] In some embodiments, the coating system further comprises a coating device, wherein the coating device comprises a coating die and a coating oven;

[0029] A coating die head, used for coating the material passing through the coating die head;

[0030] The coating oven is used to bake the material coated by the coating die head.

[0031] In the solution provided in this embodiment, the coating system includes a coating die for coating materials and a coating oven for baking the coated materials. The introduction of coating equipment such as the coating die and the coating oven allows the collection device to collect more material parameters, thereby helping to understand the coating performance of the coating system.

[0032] In a second aspect, the present application provides a coating method, which is applied to the coating system described in the first aspect, and the method comprises:

[0033] Based on the coating process parameters, the control device predicts the winding time when the material is wound up by the winding device;

[0034] At the reeling moment, the material parameters of the material collected by the collecting device are stored in a film table corresponding to the material through the control device.

[0035] In the solution provided in this embodiment, since the material parameters of the material are stored based on the material winding moment, the material parameters stored before the material is wound by the coating and winding device can be greatly reduced, resulting in inconsistency between the film roll list and the film roll.

[0036] In some embodiments, the control device includes a host computer and a slave computer; based on the coating process parameters, the control device predicts the winding time when the material is wound by the winding device, including:

[0037] Acquiring driving parameters of the driving device through the lower computer, and transmitting the driving parameters to the upper computer;

[0038] The material parameters collected by the collection device are obtained through the host computer, and the winding moment of the material by the winding device is predicted based on the drive parameters and the pre-configured distance parameters. At the winding moment, the material parameters are stored in the film form corresponding to the material; the distance parameter is used to indicate the transmission distance between the collection device and the winding device.

[0039] In the solution provided in this embodiment, the upper computer and the lower computer interact with different devices in the coating system respectively, so as to determine the winding time when the material is wound by the winding device, which helps to improve the reliability of the control device.

[0040] In some embodiments, the host computer acquires the material parameters collected by the collection device, and based on the drive parameters and the pre-configured distance parameters, predicts the reeling time when the material is reeled by the reeling device, including:

[0041] Based on the driving parameters and the distance parameters, the host computer predicts the transmission time required for the material to be transmitted from the collection device to the winding device;

[0042] The winding time is calculated by the host computer based on the transmission time and the collection time of the material parameters by the collection device.

[0043] In the solution provided in this embodiment, the transmission time from the collection device to the winding device is calculated, and then the winding time is calculated, which can improve the accuracy of the determined winding time.

[0044] In some embodiments, based on the driving parameter and the distance parameter, the host computer predicts the transmission time required for the material to be transmitted from the collection device to the winding device, including:

[0045] Based on the speed collection period included in the driving parameters and the speeds collected in each speed collection period, calculating the target distance of the material to be transported in each speed collection period;

[0046] Calculating the cumulative number of acquisitions based on the target distance and the distance parameter;

[0047] The transmission duration is obtained by calculating the product of the cumulative number of acquisition times and the rotation speed acquisition period.

[0048] In the solution provided in this embodiment, the cumulative collection period is calculated through multiple speed collection periods and the speed in each collection period, and then the transmission time is calculated. This calculation method takes into account the situation that the speed of the drive device is not constant in actual working conditions, so this calculation method is more in line with the actual working conditions of the drive device, thereby improving the accuracy of the transmission time finally calculated.

[0049] In a third aspect, the present application provides a coating method, which is applied to the control device in the coating system described in the first aspect, and the method comprises:

[0050] Based on the coating process parameters, predicting the winding time when the material is wound up by the winding device;

[0051] At the reeling moment, the material parameters of the material acquired from the collecting device are stored in a film form corresponding to the material.

[0052] In some embodiments, based on the coating process parameters, predicting the winding time of the material by the winding device includes:

[0053] Predicting the time required for the material to be transferred from the collecting device to the winding device based on the driving parameters obtained from the driving device and the pre-configured distance parameter, wherein the distance parameter is used to indicate the distance between the collecting device and the winding device;

[0054] The winding time is calculated based on the transmission time and the collection time of the material parameters obtained from the collection device.

[0055] In some embodiments, based on the driving parameters obtained from the driving device and the pre-configured distance parameters, predicting the transmission time required for the material to be transmitted from the collecting device to the winding device includes:

[0056] Based on the speed collection period included in the driving parameters and the speeds collected in each speed collection period, calculating the target distance of the material to be transported in each speed collection period;

[0057] Calculating the cumulative number of acquisitions based on the target distance and the distance parameter;

[0058] The transmission duration is obtained by calculating the product of the cumulative number of acquisition times and the rotation speed acquisition period.

[0059] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0061] Figure 1 This is a schematic diagram of the structure of a coating system according to some embodiments of the present application;

[0062] Figure 2 A schematic diagram of a coating method according to some embodiments of the present application;

[0063] Figure 3 This is another schematic flow chart of the coating method of some embodiments of the present application;

[0064] Figure 4 This is another schematic flow chart of the coating method according to some embodiments of the present application. DETAILED DESCRIPTION

[0065] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0067] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0068] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0069] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0070] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0071] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an integral part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is another reference factor related to their development.

[0072] Electrode plates are the basis of power batteries and affect the electrochemical performance and safety of power batteries.

[0073] The electrode plate generally includes a current collector and a coating applied on the current collector. Currently, the electrode plate is generally prepared by a coating process in which a slurry is applied on the current collector and an organic solvent in the slurry is dried.

[0074] During the preparation process, the electrode sheet can be presented in the form of a film roll, and each film roll has a unique corresponding film table, which records the material parameters of the film roll. The material parameters can characterize the size, weight, coating weight, slurry viscosity and other parameters of the electrode sheet.

[0075] In the related art, the material parameters detected by the acquisition device are stored in the film list in real time, that is, after the acquisition device detects the material parameters, the material parameters are immediately stored in the film list. However, since the detection position of the acquisition device is different from the winding position of the electrode plate, after the electrode plate is detected by the acquisition device, it usually takes some time before it can be transmitted from the acquisition device to the winding device and wound by the winding device. Therefore, it is possible that the material parameters of the electrode plate are stored in the film list corresponding to the current film roll, but when the cutting device at the winding device is actuated to change the roll, the electrode plate has not yet been wound into the current film roll by the winding device, that is, there is a problem of inconsistency between the material parameters of the film roll and the film roll list.

[0076] In order to reduce the inconsistency between the film roll and the film roll list during the coating and winding process, one or more embodiments of the present application propose a coating system, which uses a driving device to drive the material from the unwinding device to the winding device, uses a collection device to collect the material parameters of the material, and the control device predicts the winding time of the material, and stores the material parameters in the film roll list corresponding to the material at the winding time. Since the material parameters are stored based on the winding time of the material, the material parameters stored before the material is wound by the coating and winding device can be greatly reduced, resulting in the inconsistency between the film roll list and the film roll.

[0077] It should be understood that the data storage method based on the coating process disclosed in the embodiments of the present application includes but is not limited to being applied to the coating process of coating objects that can be coated, such as current collectors, paper, cloth, plastic films, etc.

[0078] like Figure 1 As shown, the coating system may include:

[0079] Unwinding device 11, driving device 12, collecting device 13, winding device 14 and control device 15;

[0080] The driving device 12 is used to drive the material unwound by the unwinding device 11 to move toward the rewinding device 14, and the rewinding device 14 is used to rewind the material;

[0081] The collecting device 13 is used to collect material parameters of the material passing through the collecting device 13;

[0082] The control device 15 is used to predict the winding time of the material by the winding device based on the coating process parameters, and at the winding time, store the material parameters obtained from the acquisition device 13 in the film table corresponding to the material.

[0083] In this embodiment, the coating process parameter is a parameter that can characterize the transmission time required for the material to be transmitted from the collection device 13 to the winding device 14. In the application, the coating process parameter includes but is not limited to the relevant data in the drawings of the coating system, the historical operation data of the coating system, etc. The relevant data in the drawings of the coating system may include the distance between the winding device 14 and the collection device 13, and the historical operation data of the coating system may characterize the time required for the material to be transmitted from the collection device 13 to the winding device 14.

[0084] In this embodiment, the winding time of the material includes but is not limited to the time when the material is collected by the reel in the winding device of the coating machine or the time when the material is completely wrapped around the reel.

[0085] In this embodiment, the acquisition device 13 includes but is not limited to an areal density meter, a CCD (Charge coupled Device) measurement system, etc. It should be understood that the coating system can be provided with multiple acquisition devices 13, and the multiple acquisition devices 13 can be acquisition devices of the same type or different types, for example, multiple acquisition devices 13 are all areal density meters, and for example, multiple acquisition devices 13 include both areal density meters and CCD measurement systems.

[0086] In the solution provided in this embodiment, since the material parameters of the material are stored based on the material winding moment, the material parameters stored before the material is wound by the coating and winding device can be greatly reduced, resulting in inconsistency between the film roll list and the film roll.

[0087] In one or more embodiments of the present application, Figure 1 As shown, the control device 15 includes: an upper computer 151 and a lower computer 152;

[0088] The lower computer 152 is used to obtain the driving parameters of the driving device 12 and transmit the driving parameters to the upper computer 151;

[0089] The host computer 151 is used to obtain material parameters from the collection device 13; based on the drive parameters and the pre-configured distance parameters, it predicts the winding time of the material by the winding device 14, and at the winding time, stores the material parameters in the film form corresponding to the material; the distance parameter is used to indicate the transmission distance between the collection device 13 and the winding device 14.

[0090] In this embodiment, the driving device includes but is not limited to a motor, a back roller, etc., and the driving parameters include but are not limited to parameters such as rotation speed and power.

[0091] In this embodiment, the lower computer 152 and the upper computer 151 can communicate with each other in a wired or wireless manner.

[0092] In the solution provided in this embodiment, the control device in the coating system is implemented by a host computer and a slave computer, and the host computer and the slave computer interact with different devices in the coating system respectively, which helps to improve the reliability of the control device.

[0093] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0094] In one or more embodiments of the present application, the host computer 151 is used to:

[0095] Based on the drive parameters and the distance parameters, the transmission time required for the material to be transmitted from the collecting device 13 to the winding device 14 is predicted;

[0096] The winding time is calculated based on the transmission time and the collection time when the collection device 13 collects the material parameters.

[0097] In this embodiment, the driving parameters can be converted to obtain the driving speed of the driving device 12, and the quotient of the distance represented by the distance parameter and the driving speed is calculated to obtain the transmission time required for the collected material to be transmitted from the collection device 13 to the winding device 14.

[0098] In an example, taking the driving parameter as the rotation speed of the back roller as an example, the formula for calculating the driving speed may be V=2π*R*n, where R is the radius of the back roller and n is the rotation speed of the back roller. It should be noted that the rotation speed of the back roller here may be a theoretical rotation speed. Of course, in order to improve the accuracy of the calculation, the rotation speed of the back roller may also be acquired in real time. In practical applications, an encoder may be installed on the back roller to acquire the rotation speed of the back roller through the encoder.

[0099] It should be understood that the reeling time is the sum of the transmission time and the collection time.

[0100] In the solution provided in this embodiment, the transmission time from the collection device to the winding device is calculated, and then the winding time is calculated, which can improve the accuracy of the determined winding time.

[0101] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0102] In one or more embodiments of the present application, the host computer 151 is used to:

[0103] Based on the speed collection period included in the driving parameters and the speed collected in each speed collection period, the target distance of the material to be transported in each speed collection period is calculated;

[0104] Based on the target distance and distance parameters, the cumulative number of acquisitions is calculated;

[0105] The transmission time is calculated by multiplying the cumulative number of acquisitions by the rotation speed acquisition period.

[0106] It should be understood that the cumulative number of acquisitions represents the number of target distances required to achieve the distance parameter.

[0107] Taking the acquisition device 13 as an example of a surface density meter, assuming that the material parameters measured by the surface density meter at time T1 are delayed by x time and recorded in the film roll at time T2, and the distance between the surface density meter and the winding device is L1, then L1 = t*(V1+V2+…Vm). The distance moved by the material in every t time is equal to the coating speed multiplied by time. When the mth cumulative distance traveled is equal to the distance L1, it is considered that the pole piece at the surface density meter moves to the winding device, the delay time x = t*m, T2 = T1+x.

[0108] In this embodiment, in order to meet the requirements of engineering applications, when the calculated cumulative acquisition times are not an integer, the cumulative acquisition times can also be rounded. Specifically, based on the target distance and the distance parameter, the maximum integer acquisition times are calculated; the cumulative target distance corresponding to the maximum integer acquisition times is less than the distance parameter, and the cumulative target distance is the sum of the target distances; the mapping relationship corresponding to the remaining distance parameter is determined; the remaining distance parameter is the difference between the distance parameter and the cumulative target distance; the mapping relationship is the corresponding relationship between the maximum integer acquisition times and the cumulative acquisition times; based on the mapping relationship and the maximum integer acquisition times, the cumulative acquisition times are determined.

[0109] In this embodiment, the mapping relationship may be preset based on the relative size relationship between the standard distance parameter and the remaining distance parameter within the acquisition period.

[0110] For example, the mapping relationship can be set as:

[0111]

[0112] Among them, s is the cumulative number of collections, u is the maximum integer number of collections, p is the remaining transmission distance, and A is the standard transmission distance.

[0113] In an example, the distance parameter is 100m, the standard transmission distance within a collection cycle is 20m, the target distance of the first collection cycle is 20m, the target distance of the second collection cycle is 18m, the target distance of the third collection cycle is 23m, the target distance of the fourth collection cycle is 17m, and the target distance of the fifth collection cycle is 21m. After calculation, it can be found that in this example, the maximum integer collection times is 5 times, the cumulative target distance is 99m, and the remaining distance is 1m. Since 1m<20 / 2=10m, it can be determined that the cumulative collection times is 5 times.

[0114] In the solution provided in this embodiment, the cumulative collection period is calculated through multiple speed collection periods and the speed in each collection period, and then the transmission time is calculated. This calculation method takes into account the situation that the speed of the drive device is not constant in actual working conditions, so this calculation method is more in line with the actual working conditions of the drive device, thereby improving the accuracy of the transmission time finally calculated.

[0115] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0116] In one or more embodiments of the present application, Figure 1 As shown, the coating system also includes:

[0117] A cutter device 16 is used to determine whether the roll change condition is currently met and cut off the material passing through the cutter device 16;

[0118] The control device 15 is also used to control the winding device 14 to switch to a new roll and create a film form corresponding to the new roll.

[0119] In this embodiment, the roll changing condition can be preset based on the roll diameter threshold or the winding time threshold. For example, the roll changing condition can be set as the roll diameter of the currently wound roll is greater than the roll diameter threshold or the winding time of the currently wound roll is greater than the winding time threshold.

[0120] In the solution provided in this embodiment, a cutting device is used in the coating system to cut the material, which can improve the coating efficiency compared with manual cutting of the material. In addition, the control device controls the winding device to automatically switch to a new roll and creates a film list corresponding to the new roll, thereby realizing automatic roll change of the winding device and improving the coating efficiency.

[0121] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0122] In one or more embodiments of the present application, Figure 1 As shown, the coating system further includes a coating device, and the coating device includes a coating die 17 and a coating oven 18;

[0123] A coating die 17, used for coating the material passing through the coating die 17;

[0124] The coating oven 18 is used to bake the material coated by the coating die head 17 .

[0125] In the solution provided in this embodiment, the coating system includes a coating die for coating materials and a coating oven for baking the coated materials. The introduction of coating equipment such as the coating die and the coating oven allows the collection device to collect more material parameters, thereby helping to understand the coating performance of the coating system.

[0126] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0127] The present application also provides a coating method, which can be applied to the aforementioned coating system, such as Figure 2 As shown, the method may include the following steps:

[0128] Step 201: Based on the coating process parameters, the control device predicts the winding time when the material is wound up by the winding device;

[0129] Step 202: At the time of winding, the material parameters of the material collected by the collecting device are stored in the film table corresponding to the material through the control device.

[0130] In the solution provided in this embodiment, since the material parameters of the material are stored based on the material winding moment, the material parameters stored before the material is wound by the coating and winding device can be greatly reduced, resulting in inconsistency between the film roll list and the film roll.

[0131] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0132] In some embodiments, the control device includes a host computer and a slave computer; based on the coating process parameters, the control device predicts the winding time when the material is wound by the winding device, including:

[0133] Acquire the driving parameters of the driving device through the lower computer and transmit the driving parameters to the upper computer;

[0134] The material parameters collected by the collection device are obtained through the host computer. Based on the drive parameters and the pre-configured distance parameters, the winding time of the material by the winding device is predicted, and at the winding time, the material parameters are stored in the film form corresponding to the material; the distance parameter is used to indicate the transmission distance between the collection device and the winding device.

[0135] In the solution provided in this embodiment, the upper computer and the lower computer interact with different devices in the coating system respectively, so as to determine the winding time when the material is wound by the winding device, which helps to improve the reliability of the control device.

[0136] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0137] In some embodiments, the host computer obtains material parameters collected by the collection device, and based on the drive parameters and the pre-configured distance parameters, predicts the reeling time when the material is reeled by the reeling device, including:

[0138] Based on the drive parameters and distance parameters, the host computer predicts the transmission time required for the material to be transmitted from the collection device to the winding device;

[0139] Based on the transmission time and the collection time of the material parameters collected by the collection equipment, the winding time is calculated by the host computer.

[0140] In the solution provided in this embodiment, the transmission time from the collection device to the winding device is calculated, and then the winding time is calculated, which can improve the accuracy of the determined winding time.

[0141] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0142] In some embodiments, based on the drive parameters and the distance parameters, the host computer predicts the transmission time required for the material to be transmitted from the collection device to the winding device, including:

[0143] Based on the speed collection period included in the driving parameters and the speed collected in each speed collection period, the target distance of the material to be transported in each speed collection period is calculated;

[0144] Based on the target distance and distance parameters, the cumulative number of acquisitions is calculated;

[0145] The transmission time is calculated by multiplying the cumulative number of acquisitions by the rotation speed acquisition period.

[0146] In the solution provided in this embodiment, the cumulative collection period is calculated through multiple speed collection periods and the speed in each collection period, and then the transmission time is calculated. This calculation method takes into account the situation that the speed of the drive device is not constant in actual working conditions, so this calculation method is more in line with the actual working conditions of the drive device, thereby improving the accuracy of the transmission time finally calculated.

[0147] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0148] It should be understood that the coating method in the embodiment of the present application and the aforementioned coating system belong to the same inventive concept, and therefore the implementation details of the coating method and the coating system can refer to each other.

[0149] The present application also provides a coating method, which can be applied to a control device in a coating system, such as Figure 3 As shown, the method may include the following steps:

[0150] Step 301: predicting the winding time of the material by the winding device based on the coating process parameters;

[0151] Step 302: At the time of winding, the material parameters of the material obtained from the collection device are stored in the film form corresponding to the material.

[0152] In some embodiments, based on the coating process parameters, predicting the winding time of the material by the winding device includes:

[0153] Predicting the time required for the material to be transferred from the collecting device to the reeling device based on the driving parameters obtained from the driving device and the pre-configured distance parameter, where the distance parameter is used to indicate the distance between the collecting device and the reeling device;

[0154] The rewinding time is calculated based on the transmission time and the collection time of the material parameters obtained from the collection device.

[0155] In some embodiments, based on the driving parameters obtained from the driving device and the pre-configured distance parameters, predicting the transmission time required for the material to be transmitted from the collecting device to the winding device includes:

[0156] Based on the speed collection period included in the driving parameters and the speed collected in each speed collection period, the target distance of the material to be transported in each speed collection period is calculated;

[0157] Based on the target distance and distance parameters, the cumulative number of acquisitions is calculated;

[0158] The transmission time is calculated by multiplying the cumulative number of acquisitions by the rotation speed acquisition period.

[0159] The coating methods provided in the above-mentioned embodiments of the present application have the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.

[0160] By calculating the target distance that the material is transported in each sampling cycle and then calculating the cumulative number of collections in combination with the target distance and the transmission distance, the accuracy of the cumulative number of collections is improved.

[0161] According to some embodiments of the present application, optionally, in order to improve the consistency between the storage time of the material parameters in the film form and the material winding time, after the acquisition device detects the material parameters of the material, the material parameters can be first stored in the storage device, and after the winding time arrives, the material parameters are read from the storage device and written into the film form. The storage device includes but is not limited to a disk, a cache, etc.

[0162] Specifically, at the time of winding, material parameters of the material are stored in a film form corresponding to the material, including: at the time of winding, material parameters are read from a storage device; and material parameters are written into the film form.

[0163] The material parameters are temporarily stored in the storage device, laying the foundation for storing the material parameters in the membrane form when the subsequent winding time comes.

[0164] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0165] Below Figure 1 The coating system shown is used as an example to illustrate the coating method in the embodiment of the present application, wherein Figure 1 In the figure, starting from the unwinding device 11, the collection device 13 marked between the unwinding device 11 and the coating die head 17 is marked as the surface density meter 1, the collection device 13 marked adjacent to the surface density meter 1 is marked as the surface density meter 2, the collection device 13 marked adjacent to the surface density meter 2 is marked as the surface density meter 3, the collection device 13 marked adjacent to the surface density meter 2 is marked as the CCD measurement system 1, and the collection device 13 marked adjacent to the CCD measurement system 1 is marked as the CCD measurement system 2;

[0166] like Figure 4 As shown, the method may include the following steps:

[0167] Step 401: Distance calculation.

[0168] The distance difference between the surface density meter 1 and the winding device is L1, and L1 is the length of the material between the starting point and the end point, with the material at the surface density meter 1 as the starting point and the material at the winding device as the end point. When obtaining L1, you can draw lines on the material at the starting point and the end point, take out the material after winding, and measure the length of the material between the two lines to obtain L1.

[0169] The distance difference between the surface density meter 2 and the winding device is L2. L2 is the length of the material between the starting point and the end point, with the material at the surface density meter 2 as the starting point and the material at the winding device as the end point. When obtaining L2, you can draw lines on the material at the starting point and the end point, take out the material after winding, and measure the length of the material between the two lines to obtain L2.

[0170] The distance difference L3 from the surface density meter 3 to the winding device is L3, which is the material length between the starting point and the end point, with the material at the surface density meter 3 as the starting point and the material at the winding device as the end point. When obtaining L3, you can draw lines on the material at the starting point and the end point, take out the material after winding, and measure the length of the material between the two lines to obtain L3.

[0171] The distance difference between the CCD measuring system 1 and the winding device is L4, where L4 is the length of the material from the measuring starting point 4 as the starting point to the material at the winding device as the end point. The distance difference between the CCD measuring system 2 and the winding device is L5, where L5 is the length of the material from the measuring starting point 5 as the starting point to the material at the winding device as the end point. Similarly, L4 and L5 can also be obtained by marking the material at the starting point and the end point, taking out the material after winding, and measuring the length of the material between the two markings, thereby obtaining L4 and L5.

[0172] Step 502: speed collection.

[0173] An encoder is installed at the shaft end of the back roller to record the rotation speed n in real time. The encoder is collected once at an interval of t. If the radius of the back roller is R, the real-time transmission speed V = 2π*R*n.

[0174] Step 503: Delayed recording.

[0175] Taking the material parameters at the area density meter 1 as an example, the data measured by the area density meter 1 at time T1 is delayed for x time and is recorded in the film roll at time T2.

[0176] L1=t*(V1+V2+…Vm), the distance the material moves every t time is equal to the transmission speed multiplied by the time, when the mth cumulative distance traveled is equal to the distance from L1, it is considered that the material at the measurement starting point 1 moves to the winding device position, the delay time x=t*m, T2=T1+x.

[0177] The same calculation is performed at the other four collection devices, and the material parameters are stored in the film roll list according to the calculated time.

[0178] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0179] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0180] It should be noted that:

[0181] The term "module" is not intended to be limited to a specific physical form. Depending on the specific application, a module can be implemented as hardware, firmware, software, and / or a combination thereof. In addition, different modules can share common components or even be implemented by the same components. There may or may not be clear boundaries between different modules.

[0182] The algorithm and display provided herein are not inherently related to any specific computer, virtual device or other equipment. Various general devices can also be used together with examples based on this. According to the above description, it is obvious to construct the structure required for this type of device. In addition, the application is not directed to any specific programming language yet. It should be understood that various programming languages ​​can be utilized to realize the content of the application described herein, and the description made to specific languages ​​above is for the purpose of disclosing the best mode of implementation of the application.

[0183] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a part of the sub-steps or stages of other steps.

[0184] The above embodiments only express the implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A coating system, characterized in that: include: Unwinding device, driving device, collecting device, winding device and control device; The driving device is used to drive the material unwound by the unwinding device to move toward the rewinding device, and the rewinding device is used to rewind the material; The collecting device is used to collect material parameters of the material passing through the collecting device; The control device is used to predict the winding moment of the material by the winding device based on the coating process parameters, and at the winding moment, store the material parameters obtained from the acquisition device into the film form corresponding to the material.

2. The coating system according to claim 1, characterized in that: The control device comprises: an upper computer and a lower computer; The lower computer is used to obtain the driving parameters of the driving device and transmit the driving parameters to the upper computer; The host computer is used to obtain the material parameters from the acquisition device; based on the drive parameters and the pre-configured distance parameters, predict the winding moment of the material by the winding device, and at the winding moment, store the material parameters in the film form corresponding to the material; the distance parameter is used to indicate the transmission distance between the acquisition device and the winding device.

3. The coating system according to claim 2, characterized in that: The host computer is used for: Based on the driving parameter and the distance parameter, predict the transmission time required for the material to be transmitted from the collecting device to the winding device; The winding time is calculated based on the transmission time and the collection time when the collection device collects the material parameters.

4. The coating system according to claim 3, characterized in that: The host computer is used for: Based on the speed collection period included in the driving parameters and the speeds collected in each speed collection period, calculating the target distance of the material to be transported in each speed collection period; Calculating the cumulative number of acquisitions based on the target distance and the distance parameter; The transmission duration is obtained by calculating the product of the cumulative number of acquisition times and the rotation speed acquisition period.

5. The coating system according to any one of claims 1 to 4, characterized in that: The coating system also includes: A cutter device, used to determine whether the roll changing condition is currently met and cut off the material passing through the cutter device; The control device is also used to control the winding device to switch to a new roll and create a film form corresponding to the new roll.

6. The coating system according to any one of claims 1 to 4, characterized in that: The coating system further comprises a coating device, wherein the coating device comprises a coating die head and a coating oven; A coating die head, used for coating the material passing through the coating die head; The coating oven is used to bake the material coated by the coating die head.

7. A coating method, characterized in that: Applied to the coating system according to any one of claims 1 to 6, the method comprising: Based on the coating process parameters, the control device predicts the winding time when the material is wound up by the winding device; At the reeling moment, the material parameters of the material collected by the collecting device are stored in a film table corresponding to the material through the control device.

8. The coating method according to claim 7, characterized in that: The control device includes an upper computer and a lower computer; based on the coating process parameters, the control device predicts the winding time when the material is wound by the winding device, including: Acquiring driving parameters of the driving device through the lower computer, and transmitting the driving parameters to the upper computer; The material parameters collected by the collection device are obtained through the host computer, and the winding moment of the material by the winding device is predicted based on the drive parameters and the pre-configured distance parameters. At the winding moment, the material parameters are stored in the film form corresponding to the material; the distance parameter is used to indicate the transmission distance between the collection device and the winding device.

9. The coating method according to claim 8, characterized in that: The material parameters collected by the collection device are acquired by the host computer, and based on the drive parameters and the pre-configured distance parameters, the reeling time of the material being reeled by the reeling device is predicted, including: Based on the driving parameters and the distance parameters, the host computer predicts the transmission time required for the material to be transmitted from the collection device to the winding device; The winding time is calculated by the host computer based on the transmission time and the collection time of the material parameters by the collection device.

10. The coating method according to claim 9, characterized in that: Based on the driving parameter and the distance parameter, the host computer predicts the transmission time required for the material to be transmitted from the collection device to the winding device, including: Based on the speed collection period included in the driving parameters and the speeds collected in each speed collection period, calculating the target distance of the material to be transported in each speed collection period; Calculating the cumulative number of acquisitions based on the target distance and the distance parameter; The transmission duration is obtained by calculating the product of the cumulative number of acquisition times and the rotation speed acquisition period.

11. A coating method, characterized in that: A control device applied to a coating system according to any one of claims 1 to 6, wherein the method comprises: Based on the coating process parameters, predicting the winding time when the material is wound up by the winding device; At the reeling moment, the material parameters of the material acquired from the collecting device are stored in a film form corresponding to the material.

12. The coating method according to claim 11, characterized in that: Predicting the winding time of the material by the winding device based on the coating process parameters includes: Predicting the time required for the material to be transferred from the collecting device to the winding device based on the driving parameters obtained from the driving device and the pre-configured distance parameter, wherein the distance parameter is used to indicate the distance between the collecting device and the winding device; The winding time is calculated based on the transmission time and the collection time of the material parameters obtained from the collection device.

13. The coating method according to claim 12, characterized in that: Based on the driving parameters obtained from the driving device and the pre-configured distance parameters, the transmission time required for the material to be transmitted from the collecting device to the winding device is predicted, including: Based on the speed collection period included in the driving parameters and the speeds collected in each speed collection period, calculating the target distance of the material to be transported in each speed collection period; Calculating the cumulative number of acquisitions based on the target distance and the distance parameter; The transmission duration is obtained by calculating the product of the cumulative number of acquisition times and the rotation speed acquisition period.

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