Roll Surface Contact Region Switching for Electrode Press
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Solution Overview
Problem
The continuous production of high-quality electrodes is hindered by roll surface abnormalities, such as breakage, which require stopping the press production process for roll replacement, disrupting the manufacturing flow.
Innovation Solution
An apparatus with a press roll, a switch, and a detector system that allows for automatic switching of the contact region on the roll surface to avoid abnormal areas, enabling continuous production without stopping the process by using a wider roll surface and a controller to manage the conveyance path switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the press roll is replaced when roll surface abnormality is detected, then the quality of the electrode is maintained, but the production process must be stopped
Solution Approach 1:
The roll surface is segmented into multiple contact regions (first contact region and second contact region). When abnormality is detected in one region, the system switches to another region, allowing continuous production without replacing the entire roll. This segmentation enables the press roll to function with partial degradation.
Solution Approach 2:
The system dynamically switches between different contact regions on the roll surface based on real-time abnormality detection. The controller adjusts which region contacts the electrode continuously, adapting to the roll's degradation state and maintaining production without interruption.
2Reliability
If the press production is stopped to replace the press roll, then the roll surface abnormality is resolved, but the production efficiency decreases
Solution Approach 1:
The system performs preliminary switching to alternative contact regions before the roll failure becomes critical. By detecting abnormalities early and switching regions proactively, the system prevents complete roll failure and maintains continuous production, avoiding the need for emergency stoppages.
Solution Approach 2:
The system maintains continuous useful action by ensuring that press production never stops. When one contact region becomes abnormal, the system seamlessly transitions to another region, keeping the production process continuously operational without interruption or efficiency loss.
3Productivity
If the contact region is switched to avoid abnormal portions, then continuous production is enabled, but the roll surface width must be increased
Solution Approach 1:
The system utilizes the circumferential dimension of the cylindrical roll surface to create multiple contact regions. Instead of increasing the axial width of the roll, the solution exploits the rotational dimension, allowing multiple effective contact zones around the roll's circumference, thereby enabling region switching without increasing the stationary roll's footprint.
Data Source
AI summary
An apparatus for manufacturing an electrode performs press-working of a strip electrode being conveyed. This manufacturing apparatus includes a press roll including a roll surface having a width that is twice or more a width of the strip electrode, a switch configured to switch a contact region of the roll surface contacting with the strip electrode during press-working, and a controller. When an abnormality of the roll surface is detected in a state where the contact region of the roll surface is a region located on the left side with respect to a center line of the roll surface, the controller controls the switch such that the contact region of the roll surface is switched to a region located on the right side with respect to the center line of the roll surface.