Multi-Level Parcel Sorting Layout for High Throughput in Limited Space
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Solution Overview
Problem
Conventional sorting systems face congestion and reduced throughput due to the need for increased area as capacity is scaled, limiting the efficiency of parcel transportation in logistics hubs and e-commerce fulfillment centers.
Innovation Solution
A multi-level sorting system with vertically aligned distribution floors, featuring a network of lanes with automated inductors and chutes that allow for independent operation of transporter carts, enabling efficient distribution and unloading of parcels while maintaining a compact footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If more lanes are added side by side to increase capacity, then the throughput rate increases, but the footprint area increases
Solution Approach 1:
The patent transitions from a two-dimensional horizontal layout to a three-dimensional vertical structure by stacking multiple distribution floors one above another. Items are conveyed horizontally on each floor and then vertically transferred between floors via elevators, allowing the system to increase capacity by utilizing the vertical dimension rather than expanding horizontally.
2Productivity
If the sorting system is scaled to increase capacity, then the processing rate improves, but the area occupied increases
Solution Approach 1:
The system implements a nested structure where multiple distribution floors are stacked vertically, with each floor containing complete functional elements (conveyors, inductors, bins). This nested arrangement allows the system to scale capacity by adding vertical layers rather than expanding the horizontal footprint, as each floor is contained within the vertical envelope of the structure.
3Productivity
If multiple parcels are transported on the same conveyor belt, then the system capacity is maximized, but congestion occurs and delays transport
Solution Approach 1:
The system segments the conveyor network into multiple independent horizontal lanes on each distribution floor, with automated inductors that can independently place items onto different carts or conveyors. This segmentation allows parallel processing of multiple items without congestion, as each inductor and conveyor segment can operate independently to move items toward their destination bins.
Data Source
AI summary
A multi-level sorting system may include a multi-level structure comprising: a plurality of chutes; a plurality of distribution floors, to deliver items for distribution to any of a plurality of unique address bins, each of the distribution floors located at a different level and comprising a network of lanes for independently operating a plurality of transporter carts on the network of lanes. The network of lanes of each of the floors includes a feeding lane to transport the items for distribution to at least one loading lane; a plurality of automated inductors along said at least one loading lane, to pick one of the items and load that item onto one of the transport carts; and a plurality of unloading lanes with unique unloading positions arranged so that unique unloading positions that are located at different floors and that are assigned to a single unique address bin, are each substantially aligned with an inlet of a shared chute of the plurality of chutes.