Electrode-Connecting Film Winding for Loss-Free Roll Splicing
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Solution Overview
Problem
Existing electrode manufacturing processes result in significant electrode loss and reduced work efficiency due to manual pre-work and automatic splicing processes, leading to inefficiencies and potential safety hazards.
Innovation Solution
An electrode-connecting film winding device and method that automates the installation of an electrode-connecting film on a bobbin, attaching a double-sided tape, and winding the electrode on the film to minimize loss and quality defects by replacing the electrode loss portion with the film.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual pre-work is performed to attach adhesive tape to the bobbin, then the electrode can be wound and connected, but work efficiency is reduced and safety accidents may occur
Solution Approach 1:
The system performs automatic pre-work where the bobbin itself participates in the winding process. The bobbin is rotated by a winder to automatically wind the electrode-connecting film and subsequent electrode material, eliminating the need for manual tape attachment and pre-positioning operations.
Solution Approach 2:
Manual mechanical operations (hand-winding, hand-attachment of adhesive tape) are replaced by an automated mechanical system comprising a winder, bobbin installation unit, and controlled rotation mechanism that performs the same functions automatically, improving efficiency and safety.
2Reliability
If automatic splicing is performed to connect electrode rolls, then continuity is maintained, but electrode loss occurs at the splicing portion
Solution Approach 1:
An electrode-connecting film serves as an intermediary component between electrode rolls during splicing operations. This film is wound on the bobbin before electrode winding, providing a dedicated connection layer that facilitates splicing without consuming electrode material, thus maintaining continuity while preventing electrode loss.
3Device complexity
If electrode is directly wound on the bobbin without electrode-connecting film, then the process is simpler, but electrode loss occurs during connection and splicing
Solution Approach 1:
The winding system is segmented into distinct functional layers: the electrode-connecting film layer (wound first on the bobbin) and the electrode layer (wound subsequently). This segmentation allows the connecting film to handle splicing operations independently, protecting the electrode material from loss during connection processes.
4Adaptability or versatility
If manual pre-work is performed for adhesive tape attachment, then positioning can be adjusted, but safety hazards increase and automation is reduced
Solution Approach 1:
The bobbin and winding system perform self-positioning and self-attachment functions. The bobbin rotation automatically positions the electrode-connecting film and electrode material, while the winder mechanism handles attachment operations, eliminating manual intervention and its associated safety hazards.
Data Source
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AI summary
The disclosed invention includes a bobbin installation unit in which a bobbin is installed, a film supply unit configured to supply an electrode-connecting film to the bobbin, a transfer unit configured to transfer the electrode-connecting film installed in the film supply unit to the bobbin installation unit, an adhesive tape attaching unit installed above the bobbin installation unit and configured to attach an end portion of the electrode-connecting film drawn out to the transfer unit to the bobbin, a double-sided tape attaching unit configured to attach a double-sided tape to the electrode-connecting film wound on the bobbin, and a frame body on which the adhesive tape attaching unit and the double-sided tape attaching unit are movably installed.