Transfer System Coordination for Overlapping Load Handling
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Solution Overview
Problem
Conventional transfer systems in distribution warehouses require excessive time to transition from holding a load to preparing for the next load due to the need to raise the load-carrying platform, reducing overall efficiency.
Innovation Solution
A transfer system with a transferring part that detects when an article is lifted above a certain height, allowing simultaneous movement of the holding part to the next position and transport of another article to the first position, utilizing a control system to coordinate these actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the load-carrying platform is raised to a given position after unloading to prepare for the next load, then the system ensures proper positioning for the next transfer, but the transfer efficiency deteriorates due to the time required for platform movement
Solution Approach 1:
The platform is raised to the given position in advance, before the current load is fully unloaded, so that when the next load arrives, the platform is already in the correct position, eliminating waiting time and improving transfer efficiency while maintaining positioning accuracy
2Ease of operation
If the system waits for the current load transfer to complete before preparing the next load, then the transfer process is simple to control, but the transfer efficiency deteriorates due to idle time between transfers
Solution Approach 1:
The system performs multiple actions continuously without idle time: while the current load is being transferred, the platform simultaneously raises to position, and the next load is simultaneously transported to the first transfer position, ensuring continuous productive operation while maintaining manageable control through coordinated timing
3Reliability
If the holding part moves to the second transfer position only after the article is fully lifted, then collision is avoided, but the transfer efficiency deteriorates due to sequential operation timing
Solution Approach 1:
The holding part begins moving to the second transfer position while the article is still being lifted, rather than waiting for completion, so that the movements are overlapping in time. The system ensures collision avoidance by coordinating the timing so the article reaches its final position just as the holding part arrives at the second transfer position, thus improving efficiency while maintaining safety
Data Source
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AI summary
According to a transfer system (1), in a case where a first detecting part (201) detects that an article (2) is lifted above a first height (H1), a picking head (12a) is moved toward a second transfer position (P2) and a first container (17) in which another article (2) is housed is transported to a first transfer position (P1).