Progressive Pressing Device for Fuel Cell Separators
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Solution Overview
Problem
The challenge in manufacturing fuel cell separators is the difficulty in smoothly and appropriately conveying and pressing thin elongated metal plates due to vibration and deflection, which hinders productivity.
Innovation Solution
A progressive pressing device with a conveying part, pressing part, positioning pin, and lifting part, where the lifting part is configured in three states to manage the metal plate's positioning and pressing, allowing for precise engagement and reduced tension, enabling smooth conveying and pressing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the elongated metal plate is simply lifted up during conveying, then the conveying process can be performed, but the metal plate experiences vibration and deflection, making it difficult to perform pressing process appropriately
Solution Approach 1:
The lifting part is configured to be state variable between multiple states (first state, second state, third state), transitioning dynamically to match different process requirements. This allows the system to adapt its lifting behavior during conveying and pressing operations, reducing vibration and deflection while maintaining productivity.
Solution Approach 2:
The lifting part acts as an intermediary between the conveying part and the pressing part, providing a transition mechanism that ensures the metal plate is properly positioned and stabilized before pressing. The positioning pin engaging with the positioning hole serves as a precise intermediary alignment mechanism.
2Device complexity
If the lifting part maintains constant distance between lifting plate and upper plate, then the structure is simple, but it cannot accommodate both conveying and pressing operations appropriately
Solution Approach 1:
The lifting part transitions between different states with varying distances between the lifting plate and upper plate. In the first state, the distance is larger for conveying operations. In the second state, the distance is adjusted for positioning. In the third state, the distance is reduced for pressing operations. This dynamic adjustment provides versatility without excessive complexity.
Solution Approach 2:
The lifting part periodically transitions between different distance states to accommodate the cyclic nature of conveying and pressing operations. This periodic adjustment allows the system to handle different process requirements at appropriate times in the production cycle.
Data Source
AI summary
In a progressive pressing device, a first state of a lifting part is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are not engaged, a second state is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged, and a third state is a state sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged.