Article Storage Facility With Temporary Placement Routing
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Solution Overview
Problem
Existing article storage facilities face inefficiencies when unloading an article stored behind another article, as the process requires returning the front article to its rack before unloading the rear article, increasing the time to reach the relay section.
Innovation Solution
A control device switches the transport device to a specific transfer mode when a first article to be unloaded is behind a second article, allowing the transport device to transfer the second article first to a temporary placement region and then the first article to the relay section, optimizing the transfer order and reducing travel time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transport device transfers the front article back to the storage rack before unloading the rear article, then the storage rack structure is maintained, but the time to unload the rear article increases
Solution Approach 1:
The patent introduces a temporary placement region as an intermediary area between the storage rack and relay section. When the rear article needs to be unloaded, the front article is transferred to this temporary region instead of being returned to the storage rack, allowing the rear article to be unloaded directly while maintaining storage rack integrity
Solution Approach 2:
The system performs preliminary assessment of article positions and unloading requirements. When a rear article needs unloading, the front article is preemptively transferred to the temporary placement region before the unloading process begins, preventing time loss during the actual unloading operation
2Stability of the object's composition
If the transport device returns the front article to the storage rack, then article storage order is maintained, but overall facility efficiency decreases
Solution Approach 1:
The temporary placement region serves as a mediator that preserves storage order without requiring articles to return to the storage rack. Articles are held in this intermediate zone, maintaining their sequence while enabling efficient unloading operations
Solution Approach 2:
The patent segments the storage area into distinct regions: storage rack, temporary placement region, and relay section. This segmentation allows independent management of each zone, enabling the temporary region to handle unloading operations without disrupting the storage rack's organized structure
Data Source
AI summary
A specific transfer mode is a mode for causing a transport device to execute a first transfer operation, a travel operation, and a second transfer operation in this order. The first transfer operation is transferring a second article from a storage region to the transport device with use of a second transfer device, and thereafter transferring a first article from the storage region to the transport device with use of a first transfer device. The travel operation is traveling to a position corresponding to a boundary between a relay section and a temporary placement region while holding the first article and the second article. The second transfer operation is transferring the first article from the transport device to the relay section with use of the first transfer device, and transferring the second article from the transport device to the temporary placement region with use of the second transfer device.