Tape Feeder ID Collation to Prevent Erroneous Component Mounting
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Solution Overview
Problem
When a tape feeder is shared among multiple production lines, network failures can lead to outdated tape feeder information in one line not being updated in other lines, causing erroneous mounting as the old information is used upon the feeder's return.
Innovation Solution
A production system where each production line has a line management device, a tape feeder with a communication device that updates and matches tape feeder and component IDs, and an electronic component mounting machine that stops mounting if the information does not match, ensuring the latest information is used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tape feeder information is stored locally in each production line's line management device, then the system can continue operation during network failures, but the information becomes outdated when feeders are moved between lines
Solution Approach 1:
The system performs preliminary actions by storing tape feeder information locally in each line management device before network failures occur. This allows the mounting machine to continue operation using stored information when network communication is unavailable, ensuring operation continuity while maintaining information accuracy through pre-synchronization.
Solution Approach 2:
The mounting machine performs collation by comparing the tape feeder ID read from the physical feeder with the ID stored in the line management device. This feedback mechanism detects information mismatches that occur when feeders are moved between lines, preventing erroneous mounting by identifying that the stored information is outdated and triggering a stop of the mounting operation.
2Loss of information
If tape feeder information is updated in real-time across all production lines, then information accuracy is maintained, but system complexity and communication requirements increase
Solution Approach 1:
The system segments the information management by allowing each production line to independently store and manage its own tape feeder information locally. This eliminates the need for complex real-time synchronization across all lines, reducing system complexity while maintaining information accuracy through local collation and feedback mechanisms that only activate when mismatches occur.
3Manufacturing precision
If collation is performed continuously to ensure accuracy, then erroneous mounting is prevented, but production speed decreases
Solution Approach 1:
The system performs collation periodically at specific moments: when a tape feeder is first mounted on the mounting machine and when information mismatches are detected. This periodic collation approach ensures mounting accuracy by verifying tape feeder information at critical points without requiring continuous verification during the entire mounting process, thereby maintaining production speed while preventing erroneous mounting.
Data Source
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AI summary
It is an object of the present invention to provide a production system and a control method for the production system that can suppress erroneous mounting when a tape feeder is shared and used even when latest tape feeder information is not shared among multiple production lines in a production system having multiple production lines. Information that matches the tape feeder database stored by the line management device is stored in the tape feeder. When the tape feeder is mounted on the mounting machine, the information stored in the tape feeder is read, and when it is determined that the information does not match the tape feeder database, mounting of the electronic component supplied from the tape feeder is stopped.