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For the battery production industry, how to control every battery produced to meet the requirements is a problem that needs to be solved urgently. By encoding each battery to generate a corresponding barcode, tracking and testing each process in the battery production process, and automatically uploading the data to the background database, thus effectively controlling the quality of the battery and greatly reducing the intervention of human factors Lead to unqualified quality.
System goals:
Establish a data center and batch-level control center with CELL ID as the link to meet the requirements of 3 seconds/CELL production cycle. The system has good economy, stability, ease of use and easy maintenance.
Realize the full integration of battery barcode printing, liquid injection weighing, ACR/OCV detection, NCR, chemical conversion, aging, packaging and coding and other equipment
Realize the unique identification of the barcode encoding of the battery, the material tray, and the outer packaging box
Realize the traceability of production process information: injection information, machine information, operator information, etc.
Achieve strict batch-level classification and packaging, real-time monitoring and alarming of bar code readability, injection volume, batch, grade, coding, packaging and other quality
Production data analysis system
system structure
Part of the system function introduction
1. Battery barcode generation
The user can generate the identification number of each battery according to the bar code generation rules set in the system. Through this identification number, various data of the battery during the production process can be inquired.
2. The original weight of the battery
When weighing the original weight of the battery, the operator should first check whether there is a barcode label on the battery. When ensuring that the label exists, place the battery on the electronic balance, and at the same time align the barcode label on the battery with the scanning port; weigh the original weight of the battery. There will be a reminder when the battery bar code and battery original weight are displayed, and the data will be automatically saved in the database, and then the next battery weighing will be performed.
3. Liquid injection and weighing
Liquid injection weighing is used to detect the liquid injection in the battery, manually enter the battery batch number, place the filled battery on the electronic balance, and at the same time, the barcode label on the battery is aligned with the scanner, and the barcode is scanned at the same time. The weight of the battery W2 (after filling) is also taken out of the corresponding battery weight (W1) in the database. Calculate the injection volume by two weights and compare with the standard error to get the difference, and get the conclusion of the relevant state according to the difference.
If the status shows green, it means the injection is within the standard range value
If the status shows red, it means that the barcode was scanned incorrectly, and the barcode needs to be scanned again
If the status shows blue, it means that the weight difference after the battery has been filled is out of the range.
If the status shows yellow, it means the weight of the battery after filling is lower than the range value
5. ACR/OCV detection
To detect the ACR/OCV of the battery, the user selects the specification and model, enters the standard value, temperature, and selects the machine. The standard value can be sampled and obtained; scan the battery label barcode; monitor the ACR and OCV tester to obtain the ACR value and OCV value judgment If there is no data in the setting range, the saving will fail; the calculation of ACR, OCV status will sound a successful prompt sound
6. Packaging
Packing data record. When the user selects the type of packaging, the system will automatically extract the upper and lower limits and batch range of each box of this type from the basic data file, and then scan whether the battery can enter the packaging process and whether it meets the packaging requirements.
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