Rotating Roller Laser Marking for Precise Electrode Sheet Processing
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Solution Overview
Problem
Current methods for laser marking on electrode plates in battery manufacturing struggle with precision due to difficulties in controlling the position of the mark, leading to low precision and efficiency.
Innovation Solution
A processing equipment design where the laser assembly synchronously rotates with a rotation roller, allowing the laser beam to oscillate or move linearly independently of the sheet motion, improving synchronism and precision of laser marking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the laser beam is driven to move along with the sheet during laser marking, then the laser marking can be performed on the moving sheet, but the position control of the mark becomes difficult and precision decreases
Solution Approach 1:
The patent replaces the mechanical system of driving the laser beam to move along with the sheet with an optical system. The laser assembly remains stationary while the laser beam is modulated to oscillate or move independently through optical scanning mechanisms, achieving mark position control without mechanical coupling to the moving sheet
Solution Approach 2:
The patent introduces dynamic control of the laser beam trajectory through oscillation mechanisms. The laser beam can oscillate around a second axis that intersects the sheet motion direction, enabling precise mark positioning through dynamic optical control rather than static mechanical following
2Manufacturing precision
If the laser assembly rotates synchronously with the rotation roller, then the synchronism between laser beam and sheet motion is improved, but the device complexity increases
Solution Approach 1:
The patent eliminates the need for the laser assembly to physically rotate by replacing the mechanical synchronous following system with an optical scanning system. The laser beam is directed through scanning mirrors or oscillating optics that can independently control beam position without mechanical coupling to the rotating roller
Solution Approach 2:
The patent introduces an intermediary optical scanning system between the stationary laser source and the moving sheet. This intermediary mechanism (optical scanner) translates the stationary laser output into a moving laser beam pattern that synchronizes with sheet motion through optical rather than mechanical means
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
Enhances the precision and efficiency of laser marking on electrode plates by maintaining synchronized motion between the laser beam and the sheet, eliminating the need for a buffer assembly and reducing mechanical complexity.
Implementation Method 1
the laser assembly is configured to drive the laser beam to be emitted toward the sheet so as to perform laser marking or laser cutting on the sheet
Data Source
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AI summary
This application discloses processing equipment (100), electrode plate processing equipment, battery processing equipment, and a sheet processing method. The processing equipment includes a rotation roller (20) and a laser assembly (30). The rotation roller (20) is rotatable around a first axis (L1). An outer peripheral surface of the rotation roller (20) around the first axis (L1) is configured to allow winding of a sheet (200). The outer peripheral surface of the rotation roller (20) is able to move synchronously with the sheet (200) around the first axis (L1). The laser assembly (30) is disposed on the rotation roller (20) and able to rotate with the rotation roller (20). The laser assembly (30) is configured to drive a laser beam (H) to be emitted toward the sheet (200), and further configured to drive the laser beam (H) to move linearly and/or oscillate around a second axis (L2) that intersects the first axis (L1). The foregoing technical solution improves synchronism between the motion of the laser beam (H) and the motion of the sheet (200) to improve precision of laser marking or laser cutting.