Automated Sheet Attachment Device for Battery Packs
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Solution Overview
Problem
The existing methods for attaching label sheets and sheathing sheets to battery packs are inefficient, requiring manual handling and exchange of jigs based on battery case size, leading to reduced productivity, inconsistent attachment, and potential air bubbles or folding issues.
Innovation Solution
A sheet attachment device with first and second loaders, jigs, guide frames, a rotator, and pressing rollers that automate the attachment of label and sheathing sheets to battery packs, ensuring consistent positioning and preventing air bubbles, with a conveyor system for efficient movement and attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual handling or conventional labeling devices are used to attach label sheets to battery packs, then the process can be completed, but productivity is reduced due to the need to exchange jigs based on battery case size
Solution Approach 1:
The patent applies universality by designing a single labeling device that can handle multiple battery pack sizes through adjustable positioning mechanisms. The device includes adjustable guide rails and positioning fixtures that can be reconfigured for different battery dimensions, eliminating the need to exchange entire jigs while maintaining productivity and adaptability across various battery sizes.
Solution Approach 2:
The patent implements dynamics through adjustable and reconfigurable positioning mechanisms within the labeling device. The guide rails, fixtures, and support structures can be dynamically adjusted to accommodate different battery pack sizes and shapes, allowing the system to adapt quickly without requiring physical jig exchanges, thus improving both productivity and flexibility.
2Reliability
If conventional labeling methods are used, then the process is simple, but air bubbles or folding issues occur when bent portions, concave portions, or convex portions are formed at the battery case
Solution Approach 1:
The patent applies local quality by incorporating localized pressing mechanisms and adaptive positioning fixtures that specifically address areas with bent portions, concave portions, or convex portions on the battery case. The labeling device includes localized pressure application points and adjustable support structures that conform to the specific geometry of the battery surface, ensuring reliable attachment without air bubbles or folding even on complex surfaces.
Solution Approach 2:
The patent uses an intermediary pressing roller or compression mechanism between the label sheet and the battery case surface. This intermediary element can adapt to irregular surfaces by applying distributed pressure through its contact area, ensuring complete adhesion even when the battery case has bent portions, concave portions, or convex portions, thereby preventing air bubbles and folding issues.
3Manufacturing precision
If label sheets are attached to battery packs with bent portions, concave portions, or convex portions, then coverage is attempted, but the label sheet does not tightly attach and may fold or form air bubbles
Solution Approach 1:
The patent implements dynamics through adjustable positioning mechanisms and adaptive pressing forces that can be modified based on the specific geometry of the battery case. The device includes movable fixtures and adjustable pressure rollers that can be programmed to apply appropriate force at specific locations, ensuring consistent attachment quality across various battery shapes without requiring complex manual intervention.
Solution Approach 2:
The patent incorporates feedback mechanisms through sensors that detect the position and geometry of the battery case, allowing the labeling device to automatically adjust its positioning and pressing force. This closed-loop control ensures that the label sheet is applied with optimal pressure and alignment, achieving high manufacturing precision and consistency even on battery cases with bent portions, concave portions, or convex portions.
Data Source
AI summary
Disclosed herein is a sheet attachment device for battery packs, specifically a sheet attachment device for attaching a label sheet and a sheathing sheet to a battery pack having a plate-shaped battery cell mounted in a pack case. The sheet attachment device includes first and second loaders, first and second jigs, first and second guide frames, a first sheet attachment jig, a rotator, a pressing roller, a conveyor, and a second sheet attachment jig.