Residual Hand Mail Sorting With Sequence-Preserving Conveyor Collection
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Solution Overview
Problem
Existing sorting systems struggle with residual hand mail items that cannot be automated due to physical properties or non-readability, requiring manual sorting that is labor-intensive and costly.
Innovation Solution
A residual hand sorting device with conveyors and a control unit to automate the sorting process, allowing collection and storage of mail items in a sequence-preserving arrangement on an output conveyor, enabling efficient manual handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual sorting of residual hand mail items is performed, then sorting capability is achieved, but labor requirements and costs increase significantly
Solution Approach 1:
The sorting system is divided into multiple independent distribution conveyors (first, second, third distribution conveyors) that can operate simultaneously. Each conveyor handles specific destination groups, allowing parallel processing of different mail item categories and significantly increasing overall throughput while maintaining automation.
Solution Approach 2:
The system dynamically adjusts the operation of individual distribution conveyors based on the current mail items being sorted. The control unit activates only the necessary conveyors for each batch of mail items, optimizing resource utilization and maintaining high productivity across varying workload conditions.
2Productivity
If multiple distribution conveyors are used to increase sorting capacity, then productivity improves, but device complexity increases
Solution Approach 1:
Each distribution conveyor is designed with multi-functionality, capable of handling different destination groups and mail item types. The conveyors share common structural elements and control logic, reducing overall system complexity while maintaining high sorting capacity through flexible configuration rather than dedicated specialized equipment for each function.
Solution Approach 2:
A centralized control unit acts as an intermediary that manages the complexity of coordinating multiple distribution conveyors. The control unit receives mail item information, determines the appropriate destination, and automatically activates the corresponding conveyor, simplifying the control architecture while enabling high-throughput operation of multiple conveyors in parallel.
3Manufacturing precision
If mail items are sorted and stored in sequence on output conveyor, then sorting accuracy is maintained, but storage space requirements increase
Solution Approach 1:
The output conveyor is segmented into multiple independent sections corresponding to different destinations. Mail items are stored in sequence on these segmented sections, allowing efficient use of space by organizing items destination-by-destination rather than creating a single long storage area. This segmentation maintains sorting accuracy while optimizing space utilization.
Solution Approach 2:
The system transitions from linear sequential storage to multi-dimensional organized storage by introducing destination-based segmentation along the conveyor. This allows items to be arranged in a structured manner that preserves sequence information while compactly organizing them by destination, reducing the effective storage space required compared to simple linear accumulation.
Data Source
AI summary
A residual hand sorting device for sorting residual hand mail items is provided that includes an infeed conveyor configured to convey at least one residual hand mail item in a first direction, at least one distribution conveyor configured to take over the at least one residual hand mail item from the infeed conveyor and to convey it to at least one output conveyor, and a control unit configured to control the distribution conveyor and/or the output conveyor such that residual hand mail items are collected on the output conveyor in a collection arrangement, wherein the output conveyor is configured to convey the collection arrangement of residual hand mail items in a second direction, and a related method.