Component Mounting Line Design Device Optimizing Board Production Sequence
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Solution Overview
Problem
Existing printed circuit board production techniques do not adequately account for the time and effort required to change configurations when producing multiple types of boards, leading to increased overall cycle time.
Innovation Solution
A component mounting line design device calculates and optimizes the change plan to minimize the amount of change work needed when switching between board types, ensuring boards are produced in an order that reduces configuration changes, thereby shortening cycle time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the component mounting line configuration is optimized for each board type to minimize cycle time, then the cycle time for individual board types is reduced, but the amount of change work when switching between board types increases
Solution Approach 1:
The system pre-calculates and stores the optimal component mounting line configuration for each board type before production begins. By preparing these configurations in advance and calculating the change work required between different configurations, the system can plan the production sequence to minimize total change work time, rather than reacting to configuration changes as they occur during production.
2Adaptability or versatility
If the component mounting line configuration is frequently changed to accommodate different board types, then production flexibility is improved, but the overall production efficiency decreases due to increased change work
Solution Approach 1:
The system calculates the change work required between different component mounting line configurations and uses this feedback information to determine the optimal production sequence. By incorporating change work calculations into the production planning process, the system can balance production flexibility with overall efficiency, sequencing board types in an order that minimizes total change work while still accommodating different board type requirements.
Data Source
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AI summary
To calculate such a change plan of a component mounting line that reduces the amount of change work of the component mounting line in producing a plurality of boards (190) as small as possible. A production sequence calculation section (121) of a component mounting line design device (110) calculates, for each pair of the board types, an amount of work in changing a component mounting line identified by component mounting line information corresponding to one board type contained in the pair to a component mounting line identified by component mounting line information corresponding to other board type contained in the pair and identifies an order of putting into a component mounting line of a board type so as to produce in an order from a board type wherein the amount of work is smaller.