Tape Feeder Verification Across Production Lines to Prevent Mis-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When a tape feeder is shared among multiple production lines, network failures can lead to outdated tape feeder information, causing erroneous mounting as the latest information is not shared, resulting in incorrect collation during the feeder's return to the original line.
Innovation Solution
A production system where each production line has a line management device and a communication device that acquires and transmits tape feeder IDs and component IDs, allowing the electronic component mounting machine to read and verify the tape feeder information, and stop mounting if the information does not match, preventing erroneous mounting.
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line's line management device, then the system can continue work during network failures, but the information becomes outdated when tape feeders are moved between production lines
Solution Approach 1:
The system performs preliminary actions by storing tape feeder information (feeder ID and component ID) in both the line management device and the tape feeder itself before the feeder is moved between production lines. This preliminary storage ensures that when the feeder is returned to a production line, the information is already available for collation, preventing erroneous mounting while maintaining work continuity during network failures.
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 invention extracts the tape feeder information (feeder ID and component ID) from the centralized line management device and stores it directly in the tape feeder itself. This extraction eliminates the need for complex real-time information sharing systems across multiple production lines, while still enabling accurate collation when the feeder is used.
Solution Approach 2:
The system creates a copy of the tape feeder information and stores it in the tape feeder's storage unit. This copying mechanism allows the feeder to carry its own information independently, eliminating the need for complex inter-line communication systems while maintaining information accuracy.
3Manufacturing precision
If collation is performed using stored tape feeder information, then mounting accuracy is ensured, but the system may stop work when information does not match
Solution Approach 1:
The system implements feedback by collating the feeder ID read from the tape feeder with the stored feeder ID in the line management device, and similarly collating the component ID. This feedback mechanism ensures mounting accuracy by verifying information consistency, while the automated nature of the collation process minimizes work interruptions.
Data Source
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.