Roll Core Alignment and Barcode Reading for Battery Material Rolls
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Solution Overview
Problem
In the manufacturing of secondary batteries, particularly lithium-ion batteries, the frequent replacement of wound rolls due to material characteristics limits productivity, and accurately recognizing the unique identification code of materials on these rolls is cumbersome and time-consuming.
Innovation Solution
A roll transfer device and method that includes a pair of holding units and a pair of rotation units. The rotation units linearly move to align the roll position, couple with keys in the roll core, and rotate the roll, while a barcode reader recognizes the unique identification code. This setup allows for quick and accurate roll alignment and code recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a worker manually checks and controls the position and centering of the roll, then the position accuracy may be improved, but the work time increases and productivity deteriorates
Solution Approach 1:
The patent replaces the manual mechanical checking system with an automated optical detection system. A camera captures images of the roll's unique identification code and position markers, and a control unit processes these images to automatically determine roll position and centering accuracy, eliminating the need for manual visual inspection while maintaining measurement precision.
Solution Approach 2:
The system enables the manufacturing device to automatically recognize and adjust to roll position variations through automated image processing and control algorithms. The device self-corrects for position deviations by comparing detected marker positions with target positions, eliminating the need for continuous manual intervention.
2Measurement precision
If the manufacturing device is stopped for roll position adjustment, then positioning accuracy is improved, but productivity deteriorates
Solution Approach 1:
The system performs position detection and calculation in advance before the rolling operation begins. The control unit calculates the required adjustment amount based on pre-detected marker positions, allowing the roll to be positioned correctly before production starts, eliminating the need for stopping the device during operation.
Solution Approach 2:
The patent replaces manual position adjustment operations with an automated control system that calculates and executes position corrections. The control unit processes image data to determine position deviations and automatically generates adjustment commands, enabling continuous operation without stopping the manufacturing device.
3Adaptability or versatility
If the roll is frequently replaced due to material characteristics, then the material limitations are overcome, but productivity deteriorates
Solution Approach 1:
The system compensates for roll diameter variations and material characteristics by dynamically adjusting processing parameters. The control unit calculates correction values based on detected roll dimensions and position markers, allowing the same manufacturing device to handle rolls with different materials and diameters without frequent replacements, thereby maintaining productivity.
4Reliability
If manual classification and supply of rolls is performed, then the correct material type is supplied, but work time increases
Solution Approach 1:
The patent replaces manual roll classification with an automated optical recognition system. The camera captures the unique identification code on each roll, and the control unit automatically identifies the material type and supplies the correct roll to the manufacturing device, eliminating manual classification work while maintaining accuracy.
Data Source
AI summary
A roll transfer device and method is provided, which makes it easy to recognize a unique identification code for a material wound on a roll while quickly and accurately aligning a position of the roll. The roll transfer device comprises a pair of holding units disposed to be spaced apart from each other in a first direction, supporting a roll core seated thereon; and a pair of rotation units disposed on both sides of the roll core along the first direction, wherein the pair of rotation units linearly move in the first direction and are inserted into the roll core seated on the holding unit to align a position of the roll, include one or more keys coupled to one or more key grooves formed in the roll core, and are rotated in a state that they are inserted into the roll core, so that the key is coupled to the key groove, thereby rotating the roll.