Parallel Feeder Exchange Layout for Operator Passage Clearance
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Solution Overview
Problem
In production systems with multiple parallel production lines, narrowing the interval between lines to save space can result in loaders stopping at overlapping positions, blocking a path for operators and preventing passage between lines.
Innovation Solution
A production system design with parallel first and second production lines, each equipped with feeder exchange devices that can pass by each other, allowing loaders to stop at a predetermined distance apart to maintain a passable space when production is stopped.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the interval between multiple production lines is narrowed to save space, then the space utilization is improved, but the loaders may stop at overlapping positions blocking the operator passage
Solution Approach 1:
The loader stop positions are made dynamic and adjustable rather than fixed. The control device dynamically determines stop positions based on real-time conditions, allowing the system to adapt between production mode (narrow interval) and maintenance mode (wide interval with clear passage), thus resolving the contradiction between space utilization and operator accessibility
Solution Approach 2:
A control device acts as an intermediary between the production lines and loaders. It receives signals about production status and loader positions, then coordinates the stop positions of loaders to ensure they maintain safe distances from each other, preventing blocking of operator passage while allowing narrow spacing between production lines
2Ease of operation
If the loaders are positioned close to each other to allow passage, then the operator can pass between production lines, but the interval between production lines must be increased reducing space efficiency
Solution Approach 1:
The system dynamically adjusts loader stop positions based on operational mode. During production, loaders stop at positions optimized for quick feeder exchange. During maintenance or when passage is needed, the control device adjusts stop positions to maintain clearance between loaders, allowing operator passage without permanently increasing the interval between production lines
Solution Approach 2:
The loader positions are periodically adjusted between two states: production mode where loaders are positioned for efficient feeder exchange, and passage mode where loaders are repositioned to clear the path for operators. This periodic switching allows the system to optimize for different operational requirements at different times
Data Source
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AI summary
A production system includes a first production line and a second production line arranged in parallel with each other, and a first feeder exchange device and a second feeder exchange device respectively provided in each production line at an interval with which the first feeder exchange device and the second feeder exchange device can pass by each other. When the production is stopped, the first feeder exchange device and the second feeder exchange device stop at intervals of a predetermined distance or more in a board conveyance direction.