Singulation Device Speed Control for Overlapping Mailpieces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mailpiece handling systems face difficulties in controlling and singulating items of different sizes and types, particularly when they are overlapping, due to varying wrapping materials and sizes, which complicates processing and decreases system reliability.
Innovation Solution
A method and device utilizing a singulation device with rotating transport elements and sensors to detect and separate overlapping items by adjusting transport speeds and activating a transport nip to ensure precise spacing and orientation, allowing only one item to be processed at a time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional belts or chain drives are used to transport mailpieces, then the system can handle various sizes and types of mailpieces, but the control precision and reliability decrease when handling overlapping items of different sizes and wrapping materials
Solution Approach 1:
The system dynamically adjusts the speed of the first transport element relative to the second transport element to actively control and separate overlapping items. By varying the speed differential, the system adapts to different item configurations and maintains reliable control throughout the transport process, resolving the contradiction between handling versatility and control reliability.
2Ease of operation
If mailpieces are transported at constant speed, then the transport system is simple to operate, but precise spacing and orientation control cannot be achieved for overlapping items
Solution Approach 1:
The system incorporates sensors that detect the presence and position of mailpieces, providing feedback to the controller. The controller uses this feedback to automatically adjust the speed of transport elements, achieving precise spacing and orientation control while maintaining ease of operation through automated control rather than manual intervention.
Solution Approach 2:
The system changes the speed parameter of the transport elements dynamically based on detected item positions. By varying the speed parameter in response to real-time conditions, the system achieves precise spacing and orientation control without requiring complex mechanical adjustments or manual operation.
3Productivity
If multiple overlapping items are processed simultaneously, then the productivity increases, but the system cannot ensure proper singulation and processing of each individual item
Solution Approach 1:
The system uses dynamic speed adjustment of transport elements to actively separate overlapping items in real-time during transport. This dynamic control ensures that items are properly singulated before processing while maintaining continuous throughput, resolving the contradiction between productivity and singulation accuracy.
Data Source
AI summary
A method of singulating overlapping items includes receiving the overlapping items in a singulation device, the device including a first transport element configured for rotation in a first direction and a second transport element in opposing relation to the first transport element, wherein the second transport element is configured for rotation in a second direction opposite to the first direction. The method further includes rotating the first transport element at a first transport speed, rotating the second transport element at a second transport speed substantially equal to the first transport speed, conveying the overlapping items between the transport elements along a transport path, decreasing the second transport speed to singulate the overlapping items, decreasing the first transport speed to reduce a speed of a lead item, and transporting the lead item away from the singulation device.