Pouch Film Guide Roller Inclination Control for Meandering Prevention
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Solution Overview
Problem
Pouch films in pouch type secondary battery manufacturing are prone to meandering due to uneven inclinations of guide rollers, leading to defects and interruptions in the processing process, which decreases productivity.
Innovation Solution
A pouch film supply device with inclination measurement and adjustment mechanisms for guide rollers, ensuring uniform alignment and preventing meandering by monitoring and adjusting vertical and horizontal inclinations using sensors and adjustment bolts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide rollers are used to supply pouch film, then the pouch film can be guided through the molding process, but the guide rollers may become inclined and cause the pouch film to meander
Solution Approach 1:
The patent employs sensors to detect the position and orientation of guide rollers and pouch film in real-time, feeding this information back to the control system. The control system then automatically adjusts the guide roller positions to correct any inclination or meandering, ensuring continuous accurate guidance throughout the molding process.
Solution Approach 2:
The guide rollers are designed with self-adjusting mechanisms that automatically compensate for inclination and misalignment. The system monitors its own state through sensors and performs corrective adjustments without external intervention, maintaining guidance accuracy autonomously.
2Productivity
If the pouch film supply device runs continuously, then productivity is maintained, but maintenance and pouch film replacement cannot be performed
Solution Approach 1:
The patent incorporates a storage device that pre-supplies multiple pouch films before the molding process begins. When the current pouch film needs replacement or maintenance is required, the system can seamlessly switch to a pre-loaded pouch film from the storage device, allowing maintenance to be performed without interrupting the overall processing continuity.
Solution Approach 2:
The system maintains continuous pouch film supply through automated reel replacement mechanisms and pre-loaded storage. When one pouch film is depleted or maintenance is needed, the system automatically transitions to the next pouch film without stopping the molding process, ensuring uninterrupted production.
3Loss of time
If sufficient pouch film path is secured in the supply device, then maintenance time can be secured, but the device complexity increases
Solution Approach 1:
The patent implements a compact nested structure where pouch films are stored in reels within a multi-level storage device integrated into the supply system. The storage device is designed with nested compartments that accommodate multiple pouch film reels in a space-efficient manner, minimizing the overall footprint while providing sufficient film length for maintenance intervals.
Data Source
AI summary
A pouch film supply device for a secondary battery of the present technology includes: a plurality of first guide rollers installed between a pouch film inlet and a pouch film outlet to be spaced apart from each other, and configured to guide a pouch film, wherein one side of each of the plurality of first guide rollers is fixedly supported; a plurality of second guide rollers installed below the plurality of first guide rollers between the pouch film inlet and the pouch film outlet to be spaced apart from each other, and configured to guide the pouch film; and an inclination measurement member provided on another side of each of the first guide rollers to measure at least one of a vertical inclination and a horizontal inclination of each of the first guide rollers.