Control system and control method for battery aluminum foil rolling thickness optimization

Abstract

The invention relates to the technical field of metal processing, in particular to a control system and method for optimizing the rolling thickness of a battery aluminum foil, and the control system comprises a parameter presetting unit which is used for presetting parameters in the rolling process; the data acquisition unit is used for acquiring data in the rolling process; the data transmission unit is used for data transmission among the units; the core processing unit is used for acquiring preset parameters and acquired data, analyzing and processing the data, generating a report and issuing a corresponding instruction; the data storage unit is used for receiving, storing and managing preset parameters, collected data and generated reports; the automatic regulation and control unit is used for carrying out automatic regulation and control according to the issued instruction; and the monitoring and warning unit is used for displaying the generated report and giving an alarm for reminding when an analysis and processing result reaches a preset threshold value. The control system is high in automation degree, and the aluminum foil rolling precision and consistency can be effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and in particular to a control system and a control method for optimizing the rolling thickness of battery aluminum foil. Background Art

[0002] With the development of new energy vehicles, the demand for power batteries has grown rapidly. The current collector is one of the important components in the power battery. Battery aluminum foil, as the positive current collector material of lithium-ion batteries, has been widely used. In recent years, the development of power batteries has entered the stage of large modules and de-modules, which has put forward higher requirements on the thickness accuracy and consistency, plate shape and surface quality of battery aluminum foil. The existing aluminum foil rolling mill system generally includes a transmission control system for transmission control, an auxiliary control programmable controller for exchanging control information with the transmission control system, and a thickness control programmable controller for controlling the rolling thickness of the aluminum foil. In the traditional system, the thickness control programmable controller is generally relatively independent of the auxiliary control programmable controller and the transmission control system. Therefore, the degree of automation of the control of the rolling thickness of the aluminum foil is low, and the rolling accuracy and consistency of the aluminum foil products cannot be guaranteed. Summary of the invention

[0003] In order to solve the defect of low automation degree of aluminum foil rolling thickness control in the prior art, the present invention provides a control system and a control method for optimizing the rolling thickness of battery aluminum foil.

[0004] The technical solution adopted by the present invention is as follows: a control system for optimizing the rolling thickness of battery aluminum foil, including a parameter preset unit, a data acquisition unit, a data transmission unit, a data storage unit, a core processing unit, an automatic control unit and a monitoring and warning unit; wherein,

[0005] Parameter preset unit: used to preset the parameters in the battery aluminum foil rolling process;

[0006] Data acquisition unit: used to collect data during the rolling process of battery aluminum foil;

[0007] Data transmission unit: used for data transmission between units;

[0008] Core processing unit: used to obtain the parameters preset by the parameter preset unit and the data collected by the data acquisition unit, analyze and process the data, generate a report on the battery aluminum foil rolling process, and issue corresponding instructions based on the analysis and processing results;

[0009] Data storage unit: used for receiving, storing and managing the parameters preset by the parameter preset unit, the data collected by the data collection unit and the report on the battery aluminum foil rolling process generated by the core processing unit;

[0010] Automatic control unit: Automatically control the rolling process of battery aluminum foil according to the instructions issued by the core processing unit;

[0011] Monitoring and warning unit: used to display the reports generated by the core processing unit and issue an alarm when the analysis and processing results reach the preset threshold.

[0012] Furthermore, the parameter preset unit includes an aluminum foil thickness preset module for presetting the thickness of the battery aluminum foil to be rolled, a roll gap spacing preset module for presetting the interval of the roll gap of the battery aluminum foil rolling machinery, and a maintenance index threshold preset module for presetting the threshold of the maintenance index during the battery aluminum foil rolling process.

[0013] Specifically, the data acquisition unit includes: an aluminum foil thickness acquisition module, a roll gap distance acquisition module, a rolling pressure acquisition module, a rolling length acquisition module and an adjustment times acquisition module;

[0014] Aluminum foil thickness collection module: used to collect the thickness of battery aluminum foil in real time and at random positions during the rolling process of battery aluminum foil;

[0015] Roll gap collection module: used to collect the roll gap of the rolling machinery during the rolling process of battery aluminum foil;

[0016] Rolling pressure collection module: used to collect the rolling pressure of the rolling machinery during the rolling process of battery aluminum foil;

[0017] Rolling length collection module: used to collect rolling length data during the rolling process of battery aluminum foil;

[0018] Adjustment times collection module: used to collect the number of adjustments made during the rolling process of battery aluminum foil because the rolling thickness of the battery aluminum foil does not meet the requirements.

[0019] Furthermore, the core processing unit includes: a data acquisition module, an analysis and processing module, a report generation module and an instruction issuing module;

[0020] Data acquisition module: used to obtain the parameters preset by the parameter preset unit and the data collected by the data acquisition unit;

[0021] Analysis and processing module: used to analyze and process the data acquired by the data acquisition module to obtain corresponding results about the battery aluminum foil rolling process;

[0022] Report generation module: used to generate a report on the battery aluminum foil rolling process according to the analysis and processing results of the analysis and processing module;

[0023] Instruction issuing module: It is used to issue instructions to the automatic control unit to automatically control the rolling process of the battery aluminum foil when the analysis and processing results of the analysis and processing module are abnormal, and to issue instructions to the monitoring and warning unit to issue a warning reminder to the operator when the maintenance index reaches the preset maintenance threshold.

[0024] Preferably, the monitoring and warning unit includes: an information acquisition module, a report display module, a manual control module and a warning reminder module;

[0025] Information acquisition module: used to obtain the report of the battery aluminum foil rolling process generated by the report generation module and the instructions issued by the instruction issuance module;

[0026] Report display module: used to display the report of the battery aluminum foil rolling process obtained by the information acquisition module;

[0027] Manual control module: used for operators to manually control the rolling of battery aluminum foil according to the report of the battery aluminum foil rolling process displayed by the report display module;

[0028] Warning reminder module: used to issue a warning reminder to the operator after receiving the instruction issued by the instruction issuing module.

[0029] Furthermore, the data storage unit includes a data receiving module, a data storage module and a data management module;

[0030] Data receiving module: used for receiving the parameters preset by the parameter preset unit, the data collected by the data collection unit, and the report on the battery aluminum foil rolling process generated by the core processing unit according to the analysis and processing results;

[0031] Data storage module: used to store the data received by the data receiving module;

[0032] Data management module: used to manage the data stored in the data storage module.

[0033] The present invention also provides a control method for optimizing the rolling thickness of battery aluminum foil, comprising the following steps:

[0034] S1. Parameter preset: pre-set the parameters in the rolling process of battery aluminum foil;

[0035] S2. Data collection: collecting data during the rolling process of battery aluminum foil;

[0036] S3, data storage: storing the parameters preset by the parameter preset unit and the data collected by the data collection unit;

[0037] S4, data analysis and processing: analyzing and processing the parameters preset by the parameter preset unit and the data acquired by the data acquisition unit, generating a report on the rolling process of the battery aluminum foil according to the results of the analysis and processing, issuing corresponding instructions according to the results of the analysis and processing, and transmitting the generated report on the rolling process of the battery aluminum foil to the data storage unit;

[0038] S5, automatic control: automatically control the rolling process of the battery aluminum foil according to the instructions issued by the core processing unit to adjust the thickness of the rolled aluminum foil;

[0039] S6. Monitoring and warning: Display the report of the battery aluminum foil rolling process generated by the core processing unit, and issue a warning reminder when the result of the analysis and processing by the core processing unit reaches a preset threshold.

[0040] Preferably, during the data analysis and processing, if the thickness of the battery aluminum foil is thicker than the preset thickness of the battery aluminum foil, the instruction issuing module sends instructions to the automatic control unit to reduce the roller gap distance to reduce the thickness of the rolled battery aluminum foil. Conversely, the instruction issuing module sends instructions to the automatic control unit to increase the roller gap distance to increase the thickness of the rolled battery aluminum foil. At the same time, the starting length and ending length of the battery aluminum foil with abnormal thickness are recorded and transmitted to the data storage unit.

[0041] Preferably, during the data analysis and processing, the thickness, rolling pressure, starting length, ending length and number of adjustments of the battery aluminum foil when the thickness is abnormal during the rolling process of the battery aluminum foil are obtained, and the maintenance index of the battery aluminum foil rolling machinery is obtained by analyzing and processing the data obtained above:

[0042]

[0043] Therefore, the necessity of maintenance during the rolling process of the battery aluminum foil can be judged according to the maintenance index of the battery aluminum foil rolling machinery. The larger the maintenance index, the more necessary the maintenance. When the maintenance index reaches the preset maintenance threshold, the instruction sending module sends the instruction to the monitoring alarm unit, and the alarm reminder module reminds the operator to repair the battery aluminum foil rolling machinery in time; where JI is the maintenance index of the battery aluminum foil rolling machinery, H i is the thickness of the battery aluminum foil when the thickness is abnormal, H is the preset aluminum foil thickness, L1 is the starting length when the thickness is abnormal, L2 is the ending length when the thickness is abnormal, and n is the number of adjustments when the thickness is abnormal.

[0044] Beneficial effects: The control system of the present invention has a high degree of automation, and the rolling accuracy and consistency of the aluminum foil can be effectively guaranteed. First, the various parameters required in the rolling process of the battery aluminum foil are preset, and then the various parameters in the rolling process of the battery aluminum foil are collected during the rolling process of the battery aluminum foil. The acquired parameters are analyzed and processed again by the core processing unit, and the corresponding instructions are issued according to the analysis and processing results to automatically adjust the rolling of the battery aluminum foil in real time, so as to ensure that the rolling of the battery aluminum foil can be corrected in time. On the other hand, by obtaining the thickness of the battery aluminum foil, rolling pressure, starting length, ending length and number of adjustments when the thickness is abnormal during the rolling process of the battery aluminum foil, and analyzing and processing the data obtained above, the maintenance index of the battery aluminum foil rolling machinery is obtained. At the same time, when the maintenance index reaches the preset maintenance threshold, the instruction is issued to the monitoring warning unit through the instruction issuing module, and the operator is reminded through the warning reminder module to promptly repair the battery aluminum foil rolling machinery to ensure the rolling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 Schematic diagram of the control system principle of the present invention. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with specific implementation methods. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative changes belong to the protection scope of the present invention.

[0047] like Figure 1 As shown, the present invention provides a control system for optimizing the rolling thickness of battery aluminum foil, including a parameter preset unit, a data acquisition unit, a data transmission unit, a data storage unit, a core processing unit, an automatic control unit and a monitoring and warning unit; wherein,

[0048] Parameter preset unit: used to preset the parameters in the battery aluminum foil rolling process;

[0049] Specifically, the parameter preset unit includes an aluminum foil thickness preset module for presetting the thickness of the battery aluminum foil to be rolled, a roll gap spacing preset module for presetting the roll gap spacing of the battery aluminum foil rolling machinery, and a maintenance index threshold preset module for presetting the threshold of the maintenance index during the battery aluminum foil rolling process.

[0050] Data acquisition unit: used to collect data during the rolling process of battery aluminum foil;

[0051] Specifically, the data acquisition unit includes: an aluminum foil thickness acquisition module, a roll gap distance acquisition module, a rolling pressure acquisition module, a rolling length acquisition module and an adjustment times acquisition module;

[0052] Aluminum foil thickness collection module: used to collect the thickness of battery aluminum foil in real time and at random positions during the rolling process of battery aluminum foil;

[0053] Roll gap collection module: used to collect the roll gap of the rolling machinery during the rolling process of battery aluminum foil;

[0054] Rolling pressure collection module: used to collect the rolling pressure of the rolling machinery during the rolling process of battery aluminum foil;

[0055] Rolling length collection module: used to collect rolling length data during the rolling process of battery aluminum foil;

[0056] Adjustment times collection module: used to collect the number of adjustments made during the rolling process of battery aluminum foil because the rolling thickness of the battery aluminum foil does not meet the requirements.

[0057] Data transmission unit: used for data transmission between units;

[0058] Core processing unit: used to obtain the parameters preset by the parameter preset unit and the data collected by the data acquisition unit, analyze and process the data, generate a report on the battery aluminum foil rolling process, and issue corresponding instructions based on the analysis and processing results;

[0059] Furthermore, the core processing unit includes: a data acquisition module, an analysis and processing module, a report generation module and an instruction issuing module;

[0060] Data acquisition module: used to obtain the parameters preset by the parameter preset unit and the data collected by the data acquisition unit;

[0061] Analysis and processing module: used to analyze and process the data acquired by the data acquisition module to obtain corresponding results about the battery aluminum foil rolling process;

[0062] Report generation module: used to generate a report on the battery aluminum foil rolling process according to the analysis and processing results of the analysis and processing module;

[0063] Instruction issuing module: It is used to issue instructions to the automatic control unit to automatically control the rolling process of the battery aluminum foil when the analysis and processing results of the analysis and processing module are abnormal, and to issue instructions to the monitoring and warning unit to issue a warning reminder to the operator when the maintenance index reaches the preset maintenance threshold.

[0064] Data storage unit: used for receiving, storing and managing the parameters preset by the parameter preset unit, the data collected by the data collection unit and the report on the battery aluminum foil rolling process generated by the core processing unit;

[0065] Specifically, the data storage unit includes a data receiving module, a data storage module and a data management module;

[0066] Data receiving module: used for receiving the parameters preset by the parameter preset unit, the data collected by the data collection unit, and the report on the battery aluminum foil rolling process generated by the core processing unit according to the analysis and processing results;

[0067] Data storage module: used to store the data received by the data receiving module;

[0068] Data management module: used to manage the data stored in the data storage module.

[0069] Automatic control unit: Automatically control the rolling process of battery aluminum foil according to the instructions issued by the core processing unit;

[0070] Monitoring and warning unit: used to display the reports generated by the core processing unit and issue an alarm when the analysis and processing results reach the preset threshold;

[0071] Preferably, the monitoring and warning unit includes: an information acquisition module, a report display module, a manual control module and a warning reminder module;

[0072] Information acquisition module: used to obtain the report of the battery aluminum foil rolling process generated by the report generation module and the instructions issued by the instruction issuance module;

[0073] Report display module: used to display the report of the battery aluminum foil rolling process obtained by the information acquisition module;

[0074] Manual control module: used for operators to manually control the rolling of battery aluminum foil according to the report of the battery aluminum foil rolling process displayed by the report display module;

[0075] Warning reminder module: used to issue a warning reminder to the operator after receiving the instruction issued by the instruction issuing module.

[0076] The control method for optimizing the rolling thickness of battery aluminum foil according to the above control system specifically comprises the following steps:

[0077] The first step is parameter preset: the thickness of the battery aluminum foil to be rolled, the interval of the roller gap of the battery aluminum foil rolling machine, and the threshold of the maintenance index during the battery aluminum foil rolling process are preset through the aluminum foil thickness preset module, the roll gap spacing preset module, and the maintenance index threshold preset module of the parameter preset unit.

[0078] The second step is data collection: the thickness of the battery aluminum foil during the rolling process, the roll gap spacing of the rolling machine during the rolling process, the rolling pressure of the rolling machine during the rolling process, the rolling length data during the rolling process, and the number of adjustments made during the rolling process because the rolling thickness of the battery aluminum foil does not meet the requirements are collected through the aluminum foil thickness collection module, the roll gap spacing collection module, the rolling pressure collection module, the rolling length collection module and the adjustment number collection module of the data collection unit.

[0079] Step 3: Data storage: storing and managing the parameters preset by the parameter preset unit and the data collected by the data collection unit.

[0080] Step 4, data analysis and processing: the parameters preset by the parameter preset unit and the data collected by the data collection unit are obtained through the data acquisition module of the core processing unit, and the acquired data are analyzed and processed through the analysis and processing module. During the analysis and processing, if the thickness of the battery aluminum foil is thicker than the preset thickness of the battery aluminum foil, the instruction sending module sends instructions to the automatic control unit to reduce the roller gap distance to reduce the thickness of the rolled battery aluminum foil. On the contrary, the instruction sending module sends instructions to the automatic control unit to increase the roller gap distance to increase the thickness of the rolled battery aluminum foil. At the same time, the starting length and the ending length of the abnormally thick battery aluminum foil are recorded and transmitted to the data storage unit;

[0081] On the other hand, during the analysis and processing, the thickness of the battery aluminum foil, rolling pressure, starting length, ending length and adjustment times when the thickness is abnormal during the rolling process of the battery aluminum foil will be obtained, and the maintenance index of the battery aluminum foil rolling machinery will be obtained according to the above data:

[0082]

[0083] Therefore, the necessity of maintenance during the rolling process of the battery aluminum foil can be judged according to the maintenance index of the battery aluminum foil rolling machinery. The larger the maintenance index, the more necessary the maintenance. When the maintenance index reaches the preset maintenance threshold, the instruction sending module sends the instruction to the monitoring alarm unit, and the alarm reminder module reminds the operator to repair the battery aluminum foil rolling machinery in time; where JI is the maintenance index of the battery aluminum foil rolling machinery, H iis the thickness of the battery aluminum foil when the thickness is abnormal, H is the preset aluminum foil thickness, L1 is the starting length when the thickness is abnormal, L2 is the ending length when the thickness is abnormal, and n is the number of adjustments when the thickness is abnormal;

[0084] Then, the report generation module generates a report on the battery aluminum foil rolling process according to the corresponding results of the battery aluminum foil rolling process obtained by the analysis and processing module, and finally transmits the generated report on the battery aluminum foil rolling process to the data storage unit.

[0085] Step 5, automatic control: Automatically control the rolling of the battery aluminum foil according to the instructions issued by the instruction issuing module of the core processing unit to adjust the thickness of the rolled aluminum foil.

[0086] Step 6, monitoring and warning: obtain the report on the rolling process of the battery aluminum foil generated by the report generation module according to the analysis and processing results and the instructions issued by the instruction issuance module through the information acquisition module of the monitoring and warning unit, and then display the report on the rolling process of the battery aluminum foil obtained by the report acquisition module through the report display module, and the operator manually controls the rolling of the battery aluminum foil through the manual control module according to the report on the rolling process of the battery aluminum foil displayed by the report display module, and issues a warning to the operator after receiving the instruction issued by the instruction issuance module when the maintenance index reaches the preset maintenance threshold.

[0087] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of this application.

Claims

1. A control system for optimizing the rolling thickness of battery aluminum foil, characterized in that: It includes parameter preset unit, data acquisition unit, data transmission unit, data storage unit, core processing unit, automatic control unit and monitoring warning unit; among which, Parameter preset unit: used to preset the parameters in the battery aluminum foil rolling process; Data acquisition unit: used to collect data during the rolling process of battery aluminum foil; Data transmission unit: used for data transmission between units; Core processing unit: used to obtain the parameters preset by the parameter preset unit and the data collected by the data acquisition unit, analyze and process the data, generate a report on the battery aluminum foil rolling process, and issue corresponding instructions based on the analysis and processing results; Data storage unit: used for receiving, storing and managing the parameters preset by the parameter preset unit, the data collected by the data collection unit and the report on the battery aluminum foil rolling process generated by the core processing unit; Automatic control unit: Automatically control the rolling process of battery aluminum foil according to the instructions issued by the core processing unit; Monitoring and warning unit: used to display the reports generated by the core processing unit and issue an alarm when the analysis and processing results reach the preset threshold.

2. The control system for optimizing rolling thickness of battery aluminum foil according to claim 1, characterized in that: The parameter preset unit includes an aluminum foil thickness preset module for preset the thickness of the battery aluminum foil to be rolled, a roll gap spacing preset module for preset the interval of the roll gap of the battery aluminum foil rolling machinery, and a maintenance index threshold value preset module for preset the threshold value of the maintenance index in the battery aluminum foil rolling process.

3. The control system for optimizing rolling thickness of battery aluminum foil according to claim 1, characterized in that: The data acquisition unit includes: an aluminum foil thickness acquisition module, a roll gap distance acquisition module, a rolling pressure acquisition module, a rolling length acquisition module and an adjustment times acquisition module; Aluminum foil thickness collection module: used to collect the thickness of battery aluminum foil in real time and at random positions during the rolling process of battery aluminum foil; Roll gap collection module: used to collect the roll gap of the rolling machinery during the rolling process of battery aluminum foil; Rolling pressure collection module: used to collect the rolling pressure of the rolling machinery during the rolling process of battery aluminum foil; Rolling length collection module: used to collect rolling length data during the rolling process of battery aluminum foil; Adjustment times collection module: used to collect the number of adjustments made during the rolling process of battery aluminum foil because the rolling thickness of the battery aluminum foil does not meet the requirements.

4. The control system for optimizing rolling thickness of battery aluminum foil according to claim 1, characterized in that: The core processing unit includes: a data acquisition module, an analysis and processing module, a report generation module and an instruction issuing module; Data acquisition module: used to obtain the parameters preset by the parameter preset unit and the data collected by the data acquisition unit; Analysis and processing module: used to analyze and process the data acquired by the data acquisition module to obtain corresponding results about the battery aluminum foil rolling process; Report generation module: used to generate a report on the battery aluminum foil rolling process according to the analysis and processing results of the analysis and processing module; Instruction issuing module: It is used to issue instructions to the automatic control unit to automatically control the rolling process of the battery aluminum foil when the analysis and processing results of the analysis and processing module are abnormal, and to issue instructions to the monitoring and warning unit to issue a warning reminder to the operator when the maintenance index reaches the preset maintenance threshold.

5. The control system for optimizing rolling thickness of battery aluminum foil according to claim 4, characterized in that: The monitoring and warning unit includes: an information acquisition module, a report display module, a manual control module and a warning reminder module; Information acquisition module: used to obtain the report of the battery aluminum foil rolling process generated by the report generation module and the instructions issued by the instruction issuance module; Report display module: used to display the report of the battery aluminum foil rolling process obtained by the information acquisition module; Manual control module: used for operators to manually control the rolling of battery aluminum foil according to the report of the battery aluminum foil rolling process displayed by the report display module; Warning reminder module: used to issue a warning reminder to the operator after receiving the instruction issued by the instruction issuing module.

6. The control system for optimizing rolling thickness of battery aluminum foil according to claim 1, characterized in that: The data storage unit includes a data receiving module, a data storage module and a data management module; Data receiving module: used for receiving the parameters preset by the parameter preset unit, the data collected by the data collection unit, and the report on the battery aluminum foil rolling process generated by the core processing unit according to the analysis and processing results; Data storage module: used to store the data received by the data receiving module; Data management module: used to manage the data stored in the data storage module.

7. The control method of the control system for optimizing the rolling thickness of battery aluminum foil according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Parameter preset: pre-set the parameters in the rolling process of battery aluminum foil; S2. Data collection: collecting data during the rolling process of battery aluminum foil; S3, data storage: storing the parameters preset by the parameter preset unit and the data collected by the data collection unit; S4, data analysis and processing: analyzing and processing the parameters preset by the parameter preset unit and the data acquired by the data acquisition unit, generating a report on the rolling process of the battery aluminum foil according to the results of the analysis and processing, issuing corresponding instructions according to the results of the analysis and processing, and transmitting the generated report on the rolling process of the battery aluminum foil to the data storage unit; S5, automatic control: automatically control the rolling process of the battery aluminum foil according to the instructions issued by the core processing unit to adjust the thickness of the rolled aluminum foil; S6. Monitoring and warning: Display the report of the battery aluminum foil rolling process generated by the core processing unit, and issue a warning reminder when the result of the analysis and processing by the core processing unit reaches a preset threshold.

8. The control method according to claim 7, characterized in that: During the data analysis and processing process, if the thickness of the battery aluminum foil is thicker than the preset thickness of the battery aluminum foil, the instruction issuing module sends instructions to the automatic control unit to reduce the roller gap distance to reduce the thickness of the rolled battery aluminum foil. Conversely, the instruction issuing module sends instructions to the automatic control unit to increase the roller gap distance to increase the thickness of the rolled battery aluminum foil. At the same time, the starting length and ending length of the abnormally thick battery aluminum foil are recorded and transmitted to the data storage unit.

9. The control method according to claim 7 or 8, characterized in that: During the data analysis and processing, the thickness of the battery aluminum foil, rolling pressure, starting length, ending length and adjustment times when the thickness is abnormal during the rolling process of the battery aluminum foil are obtained, and the maintenance index of the battery aluminum foil rolling machinery is obtained by analyzing and processing the above data: Therefore, the necessity of maintenance during the rolling process of the battery aluminum foil can be judged according to the maintenance index of the battery aluminum foil rolling machinery. The larger the maintenance index, the more necessary the maintenance. When the maintenance index reaches the preset maintenance threshold, the instruction is sent to the monitoring alarm unit through the instruction sending module, and the operator is reminded to repair the battery aluminum foil rolling machinery in time through the alarm reminder module; wherein, JI is the maintenance index of the battery aluminum foil rolling machinery, H i is the thickness of the battery aluminum foil when the thickness is abnormal, H is the preset aluminum foil thickness, L1 is the starting length when the thickness is abnormal, L2 is the ending length when the thickness is abnormal, and n is the number of adjustments when the thickness is abnormal.

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