Electrode Plate Laser Cutting With Vision-Based Misalignment Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electrode manufacturing devices face issues with misalignment of electrode plates during processing using a laser beam due to unintentional movement during roll-to-roll transport.
Innovation Solution
An electrode manufacturing apparatus with a jig unit and laser cutting portion that includes a controller to adjust the fixing position of the jig unit and laser beam irradiation based on misalignment, using a vision portion to sense and correct for plate misalignment, and tension and meandering controllers to maintain precise cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrode plates are transported in a roll-to-roll manner, then productivity is improved, but manufacturing precision deteriorates due to misalignment
Solution Approach 1:
The vision portion detects misalignment of the electrode plate before laser cutting occurs, and the controller pre-calculates and adjusts the laser beam irradiation position based on the detected misalignment. This preliminary detection and correction action ensures that even though the plate is moving in roll-to-roll transport, the cutting operation maintains high precision by compensating for misalignment in advance.
Solution Approach 2:
The vision portion continuously monitors the position of the electrode plate during roll-to-roll transport and provides real-time feedback to the controller. The controller then adjusts the laser cutting position based on this feedback, creating a closed-loop control system that maintains manufacturing precision despite the continuous movement and potential misalignment inherent in roll-to-roll processing.
2Productivity
If laser beam cutting is used on moving electrode plates, then productivity is improved, but manufacturing precision deteriorates due to plate movement during processing
Solution Approach 1:
The system dynamically adjusts the laser beam irradiation position based on real-time detection of electrode plate misalignment. The controller modifies the cutting path coordinates according to the detected plate position, allowing the laser cutting process to maintain precision even while the plate is moving through the system in roll-to-roll manner.
Solution Approach 2:
Instead of using a mechanical system to physically stop and position the electrode plate for cutting (which would reduce productivity), the patent uses a vision-based detection system combined with controller calculations to optically track and compensate for plate position. This substitution of mechanical positioning with optical detection and computational correction maintains both high speed and high precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus ensures precise cutting of electrode plates into a set shape despite misalignment, maintaining tension and correcting for meandering during roll-to-roll transport.
Implementation Method 1
a laser cutting portion that is adjacent to the jig unit and is configured to cut at least one of the coated and uncoated portions of the electrode plate fixed to the jig unit into a set shape using a laser beam
Implementation Method 2
a vision portion that is connected to the controller and is configured to sense a misalignment value in the second direction of the electrode plate moving in the first direction
Implementation Method 3
The cylinder portion may include an elastic portion supporting the pressing jig in the third direction
Data Source
AI summary
An embodiment provides an electrode manufacturing apparatus including a first roller configured to move an electrode plate that includes a coated portion and a non-coated portion in a first direction and a second roller that is spaced from the first roller and is configured to move the electrode plate in the first direction. A jig unit that is disposed between the first roller and the second roller and is configured to press and fix the electrode plate in a third direction intersecting the first direction. A laser cutting portion is provided adjacent to the jig unit and is configured to cut at least one of the coated and uncoated portions of the electrode plate fixed to the jig unit into a set shape using a laser beam. A controller is connected to the jig unit and the laser cutting portion and is configured to control the jig unit and the laser cutting portion.


