Component Mounter Adhesive Timing Control
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Solution Overview
Problem
Existing component mounting systems face issues with adhesive viscosity changes over time, leading to improper bonding and component waste if the elapsed time after adhesive application exceeds a predetermined limit during the mounting process.
Innovation Solution
A component mounting system that includes a controller to determine whether to start the mounting process based on the post-application elapsed time, predicting if it exceeds a time limit for each target location, and prohibiting the start if any location exceeds the limit, thereby preventing waste and ensuring components are mounted via the application material in a satisfactory state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mounting process is stopped when the elapsed time after adhesive application exceeds a predetermined limit, then the bonding quality is improved, but the productivity deteriorates due to unnecessary stops during the mounting process
Solution Approach 1:
The system performs preliminary determination before the mounting process starts to check whether the elapsed time will exceed the time limit at any target location. By calculating the predicted elapsed time for each location based on the mounting sequence and timing, the system can proactively prevent the mounting process from starting if any location would exceed the limit, thus avoiding mid-process stops and maintaining productivity while ensuring bonding quality.
2Productivity
If the mounting process continues without checking the elapsed time, then the productivity is improved, but the bonding quality deteriorates due to adhesive viscosity changes
Solution Approach 1:
The system implements a feedback mechanism by continuously monitoring the elapsed time after adhesive application and comparing it against the predetermined time limit. The controller receives information about the mounting sequence and timing, calculates the predicted elapsed time for each target location, and uses this feedback to determine whether to permit or prohibit the mounting process, ensuring bonding quality without unnecessarily stopping productivity.
3Reliability
If the elapsed time monitoring is performed for each target location individually, then the bonding quality is improved, but the device complexity increases
Solution Approach 1:
The system merges the elapsed time monitoring and determination functions into a single integrated controller that handles multiple target locations simultaneously. Instead of having separate monitoring systems for each location, the controller performs unified determination by calculating predicted elapsed times for all locations based on the mounting sequence and timing information, thereby reducing device complexity while maintaining quality control at each location.
Data Source
AI summary
A component mounting system reduces the waste of components while mounting components via an application material. The system determines whether or not to permit the start of the mounting process to a plurality of applying locations based on the post-application elapsed time that has elapsed after the application of the adhesive to the applying location. That is, the system predicts the post-application elapsed time exceeds the time limit at the mounting timing at which the component is mounted in the mounting process for each applying location. If the plurality of applying locations include no applying location where the post-application elapsed time exceeds the time limit at the mounting timing, the start of the mounting process is permitted. However, if there is any applying location where the post-application elapsed time exceeds the time limit at the mounting timing, the start of the mounting process is prohibited.