Express Bin Lift With Staging Transfer for Grid Throughput
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Solution Overview
Problem
Existing automated storage systems face issues with precise alignment requirements, limited throughput due to vehicle lifting mechanism constraints, and congestion around port columns, which affect the efficiency and robustness of multi-level grid systems.
Innovation Solution
A dedicated mechanical device, such as a manipulator trolley, is used to grab and lift containers from the grid, with a vertically movable platform that can adjust horizontally to accommodate misalignments, and a staging area to manage container transfer between levels, reducing reliance on vehicle lifting mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If container handling vehicles use their own lifting mechanisms to transport containers vertically through port columns, then the system maintains simplicity in structure, but the throughput is limited and wear on vehicle lifting mechanisms increases
Solution Approach 1:
The system separates the lifting function from the container handling vehicle by introducing a dedicated bin lift apparatus. The vehicle is divided into transport function only, while a separate mechanical device handles vertical container movement, increasing throughput without overloading vehicle mechanisms
Solution Approach 2:
A dedicated bin lift apparatus acts as an intermediary between storage columns and access stations. This intermediate device receives containers from vehicles and performs vertical transport, allowing vehicles to continue their primary function while a specialized device handles the lifting task
2Measurement precision
If the framework structure requires precise alignment for port columns to function properly, then container transfer accuracy is improved, but the system becomes sensitive to settling and temperature changes
Solution Approach 1:
The bin lift apparatus incorporates adjustable positioning mechanisms that allow dynamic adaptation to alignment variations. The system can compensate for framework settling or thermal expansion by adjusting the lift position, maintaining reliable operation despite environmental changes
Solution Approach 2:
The system allows for parameter adjustments in the bin lift apparatus positioning to accommodate changes in framework alignment. By changing the positional parameters of the lift device, the system compensates for misalignments caused by settling or temperature variations
3Measurement precision
If container handling vehicles wait at port columns for containers to be transferred, then alignment and transfer accuracy can be ensured, but congestion occurs and system efficiency decreases
Solution Approach 1:
The bin lift apparatus is pre-positioned and ready to receive containers before vehicles arrive at port columns. This preliminary preparation allows seamless transfer operations, eliminating vehicle waiting time while maintaining transfer accuracy through pre-established alignment protocols
Data Source
AI summary
A lift system for an automated storage system of the type where storage containers are stacked in storage columns arranged in a grid, and where automated container handling vehicles retrieve and replace containers from a top level of the grid. The lift system has a platform vertically movable adjacent to a face of the grid, arranged for receiving and transporting one or more containers. A dedicated mechanical device is arranged for grabbing, lifting and moving the storage containers from a staging area at the top of the grid and placing containers on the platform and vice versa.