Battery Cell Tape Cutter Positioning to Prevent Adhesive Buildup
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Solution Overview
Problem
The existing tape attachment processes for battery cells face issues with adhesive contamination of cutting blades, leading to inefficient cutting and potential quality deterioration of the tape attached to the battery cells, as the adhesive accumulates and interferes with the cutting process.
Innovation Solution
A tape attachment apparatus that includes a cutter with a cutting blade wider than the tape, a Z-axis cutter elevation module, and a Y-axis cutter movement module, along with a control unit to calculate cutting operations and move the cutter in the Y-axis direction after a predetermined number of cuts, and a cleaning unit to prevent adhesive buildup on the cutting blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cutter is used to continuously cut tape, then cutting efficiency is maintained, but adhesive accumulates on the cutting blade causing interference with cutting and potential quality deterioration
Solution Approach 1:
The system performs preliminary actions by tracking the number of cutting operations and automatically relocating the cutter before adhesive buildup becomes problematic. The control unit monitors cutting counts and triggers relocation at predetermined intervals, preventing adhesive accumulation before it interferes with cutting quality.
Solution Approach 2:
The cutter is relocated periodically based on the number of cutting operations performed. The control unit counts each cutting operation and automatically relocates the cutter when the count reaches a predetermined threshold, creating a periodic maintenance cycle that prevents adhesive buildup while maintaining continuous production.
2Manufacturing precision
If the cutter is removed and remounted to clean adhesive from the cutting blade, then cutting quality is restored, but process time increases
Solution Approach 1:
Instead of waiting for adhesive buildup to affect cutting quality, the system performs preliminary relocation of the cutter to a different position on the tape width. This preventive measure restores the effective cutting edge before adhesive interference occurs, avoiding the need for time-consuming removal and remounting operations.
Solution Approach 2:
The solution moves the problem from the vertical dimension (removal and remounting of the cutter) to the horizontal dimension (relocation along the tape width). By shifting the cutter position in the Y-axis direction, the system utilizes the extra dimensional space to refresh the cutting edge without disrupting the vertical assembly/disassembly process.
3Productivity
If adhesive is attached to portions other than the adhesive portion of the tape, then tape quality deteriorates, but continuous cutting operation is maintained
Solution Approach 1:
The system takes preliminary action by relocating the cutter before adhesive contamination can spread to non-adhesive portions of the tape. The control unit monitors cutting operations and triggers relocation at thresholds that prevent adhesive migration beyond the intended adhesive zone, maintaining tape quality while preserving continuous operation.
Data Source
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AI summary
Disclosed herein is a tape attachment apparatus comprising a tape feed unit configured to feed a tape to a battery cell; and a tape cutting unit configured to cut the tape fed from the tape feed unit, wherein the tape cutting unit comprises a cutter having a cutting blade with a larger width than a width of the tape and configured to cut the tape; a cutter elevation module configured to move the cutter in a Z-axis direction being perpendicular to a surface of the tape; and a cutter movement module configured to move the cutter in a Y-axis direction being perpendicular to a feeding direction of the tape.