Component Supply Unit Arrangement for Mounter Changeover Efficiency
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Solution Overview
Problem
The existing component mounting systems face inefficiencies during changeovers due to prolonged exchange times of component supply units, leading to decreased production efficiency when a large number of units need to be exchanged.
Innovation Solution
A method for determining the arrangement of component supply units that selects units with a long time interval from their last use to the next job switch, allowing for early exchange and sufficient time allocation for the changeover, by identifying and prioritizing units not needed after the switch and determining their new positions accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If exchange preparation is performed for component supply units, then the exchange process can be organized in advance, but the exchange time still increases significantly when many units need to be exchanged
Solution Approach 1:
The system performs preliminary identification of component supply units that will be needed after job switching, and determines their optimal arrangement positions in advance. This preliminary action allows the mounting head to efficiently locate and exchange components during the changeover period, reducing the impact on production time.
Solution Approach 2:
The component supply units are segmented into different categories based on their usage timing: units needed before switching, units needed after switching, and units not needed. This segmentation allows the system to optimize the arrangement and exchange process for each category separately, improving overall exchange efficiency.
2Adaptability or versatility
If component supply units are exchanged frequently to accommodate job switching, then job flexibility is improved, but production efficiency decreases due to prolonged exchange time
Solution Approach 1:
The system dynamically determines the arrangement positions of component supply units based on the specific job requirements and switching timing. The control device adjusts the optimal positions in real-time according to the job content, allowing flexible job switching while minimizing exchange time impact on production efficiency.
Data Source
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AI summary
In a component supply unit arrangement determination method for a mounter, in which multiple component supply units are exchangeably arranged and which mounts a component on a board based on a job, as the component supply unit to be exchanged for the component supply unit to be newly arranged due to switching of multiple jobs whose execution order is determined, the component supply unit is selected such that a time interval from a job, in which the component supply unit is to be used last, to the switching is long, among the component supply units that are arranged before the switching and are not planned to be used in a job after the switching. In addition, an arrangement position of the selected component supply unit is determined as an arrangement position of the component supply unit to be newly arranged.