Feeder Exchange Mechanism for SMT Mounting Systems
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Solution Overview
Problem
Existing mounting systems face inefficiencies in preventing frequent stoppages due to feeder component depletion, as they often require switching to spare feeders, which can prolong the mounting process and reduce efficiency.
Innovation Solution
The system optimizes feeder management by moving exchange feeders to designated spare loading sections, allowing for quicker spare component pickup and preventing stoppages by executing spare component pickup processes, even when another feeder depletes, thereby reducing downtime and maintaining process efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a feeder is temporarily retracted to the stock area and another feeder is moved to the set area when component depletion occurs, then the mounting device can continue operation without stopping, but the time required for feeder exchange increases and mounting efficiency decreases
Solution Approach 1:
The system predicts component depletion before it occurs and proactively moves exchange feeders to spare loading sections in advance. This preliminary action ensures that when a feeder actually depletes, the replacement is already in position, eliminating the need for time-consuming feeder exchanges during mounting operations and maintaining both continuous operation and high efficiency
2Reliability
If components are picked up from a feeder at a position different from the original position, then component depletion can be avoided, but the mounting process efficiency is reduced due to increased pickup time
Solution Approach 1:
Exchange feeders are moved to spare loading sections before they are needed, so that when a feeder depletion occurs, the replacement is already in the correct position. This eliminates the time loss associated with moving feeders during the mounting process while still preventing component depletion through proactive feeder management
3Reliability
If multiple feeders deplete at the same time, then the mounting device must stop for feeder exchange, but existing systems cannot prevent this simultaneous depletion scenario
Solution Approach 1:
The system implements continuous monitoring of component levels in all feeders and uses this feedback information to predict future depletions. Based on this real-time feedback, the control unit coordinates feeder exchanges proactively, ensuring that multiple feeders are replenished before they all deplete simultaneously, thus preventing mounting stoppages while managing complexity through intelligent coordination
Data Source
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AI summary
A mounting control section of a mounting device causes a mounting section to pick up a component from a feeder at a position designated in mounting condition information. A moving control section of a moving work device moves an exchange feeder holding the component of the feeder, loaded to the loading section, for which component depletion is predicted and loads the exchange feeder to a spare loading section from which the mounting section can pick up the component. When component depletion of the feeder for which component depletion is predicted occurs, the mounting control section executes a spare component pickup process in which the mounting section is caused to pick up the component from the exchange feeder loaded to the spare loading section at a position not designated in the mounting condition information. Then, when component depletion of the feeder for which component depletion is predicted occurs, the moving control section collects the component depleted feeder in the accommodation section while moving and loading the exchange feeder, on which the spare component pickup process corresponding to the collected component depleted feeder is being performed, to the loading section from which the component depleted feeder was collected.