Laser Electrode Tab Cutting Path for Variable Width Tabs
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Solution Overview
Problem
Existing laser processing devices for strip electrodes cannot change the length of tabs in the width direction without altering the inclination angle of the laser beam path, limiting flexibility in cutting shapes and sizes.
Innovation Solution
A laser processing device with a conveyance device, a laser irradiating unit, and a controller that moves the laser beam along specific paths to form tabs, allowing the length of the tab in the width direction to be adjusted by changing the lengths of these paths without modifying the inclination angles of the beam paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the position of vertex X3 is changed in the width direction to adjust tab length, then the tab length in width direction is changed, but the inclination angles of sides Y2 and Y3 must be changed
Solution Approach 1:
The patent introduces a fourth vertex X4 in addition to the original three vertices, creating a quadrilateral path instead of a triangular path. This dimensional expansion allows independent control of tab length in width direction (by positioning X4) while maintaining fixed inclination angles for the laser beam paths, as the additional degree of freedom decouples these two parameters.
2Length of moving object
If the inclination angles of sides Y2 and Y3 are changed to adjust tab length, then the tab length in width direction is changed, but the laser beam path geometry is modified
Solution Approach 1:
The laser beam path is segmented into four distinct sides (Y1, Y2, Y3, Y4) connecting four vertices (X1, X2, X3, X4). This segmentation allows each side to be independently configured, enabling the tab length to be adjusted by positioning vertices without requiring changes to the inclination angles of existing paths, thereby simplifying the overall path configuration.
3Adaptability or versatility
If a common guide is used for different tab lengths, then device simplicity is maintained, but the ability to change tab length without changing path inclination is limited
Solution Approach 1:
The quadrilateral laser path configuration with four adjustable vertices provides a universal solution that can accommodate different tab lengths while maintaining the same guide structure. The additional vertex X4 and side Y4 enable the system to produce various tab lengths without requiring changes to the guide configuration or path inclination angles, achieving multi-functionality.
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
Enables the precise cutting of tabs with varying widths without altering the laser beam's inclination angles, improving processing quality and allowing for the use of a common guide for different tab lengths.
Implementation Method 1
The laser irradiating unit irradiates the strip electrode with a laser beam and is configured to change the irradiating direction of the laser beam
Data Source
AI summary
A controller causes a laser beam to move over a strip electrode along a predetermined path to cut the strip electrode into a tab shape. The predetermined path includes a first path, a second path, and a third path. The first path extends from a first position to a second position. The second position is positioned further outside in a width direction perpendicular to the conveyance direction and further in the conveyance direction than the first position. The second path extends from the second position to a third position. The third position is positioned in a direction opposite the conveyance direction with respect to the second position. The third path extends from the third position to a fourth position.