Automated Mail Tray Orientation Control

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Solution Overview

Problem

Automated mail trays face issues with mail products falling over when partially filled, leading to damage and inefficient sweeping, as existing systems lack effective mechanisms to maintain vertical orientation and control the position of mail contents during automated processing.

Innovation Solution

An automated mail tray system with a moveable bottom surface and adjustment features, including sensors and actuators, that detects when mail has fallen and corrects its position to vertical using alignment fingers and paddles, ensuring mail is kept upright and securely transferred without interference from tray walls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the automation tray is not completely filled with mail product, then the tray can accommodate varying mail volumes, but the mail can fall over within the automation tray causing damage

Engineering Contradiction:
Improveaccommodation of varying mail volumesVSAvoidmail product stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary detection of mail orientation using sensors before the sweeping operation occurs. When mail is detected to be non-vertical, the system corrects the mail position in advance by actuating the bottom surface to tilt the tray, thereby preventing damage during the subsequent sweeping process

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses sensors to continuously monitor the orientation of mail in the tray and provides feedback to the control system. Based on this feedback, the controller determines whether mail has fallen and actuates the bottom surface accordingly to restore proper orientation, creating a closed-loop control system that maintains mail stability

Inventive Principle:
Principle #23Feedback

2Extent of automation

If the moveable bottom surface is used to elevate mail, then automated sweeping can be performed, but mail may fall over and interfere with sweeping operation

Engineering Contradiction:
Improveautomated mail handlingVSAvoidmail damage from falling
Core Design Contradiction:
Extent of automationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary detection of mail orientation using sensors before the sweeping operation occurs. When mail is detected to be non-vertical, the system corrects the mail position in advance by actuating the bottom surface to tilt the tray, thereby preventing damage during the subsequent sweeping process

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system applies a counter-action by tilting the tray in the opposite direction of the fallen mail to prevent the harmful effect of mail interference during sweeping. The bottom surface actuation creates a compensating force that counteracts the gravitational effect causing mail to fall

Inventive Principle:
Principle #9Preliminary anti-action

3Reliability

If sensors and actuators are added to detect and correct mail position, then mail orientation can be maintained, but device complexity increases

Engineering Contradiction:
Improvemail position controlVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses the existing moveable bottom surface mechanism to perform dual functions: both elevating the mail for automated handling and tilting the tray to correct mail orientation. This self-service approach allows the system to maintain mail position control without adding separate complex adjustment mechanisms

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10144037B2System and method for adjusting contents of an automation tray
Publication Date: 2018.12.04 TOSHIBA INTERNATIONAL CORP
  • US10144037B2 patent drawing
  • US10144037B2 patent drawing
  • US10144037B2 patent drawing

AI summary

Presently disclosed embodiments are directed to a system and method for controlling/adjusting a position of mail product or other contents in an automated mail tray. Specifically, the disclosed embodiments utilize an automated mail tray with a ridged construction to allow automation equipment to adjust, load, and unload mail product in a structured manner. An adjustment feature, along with a moveable bottom surface of the mail tray, may be used to adjust a position of mail product in the automated mail tray into a vertical position. In some embodiments, the system may actuate the adjustment feature in response to sensor feedback that the mail product has fallen from the vertical position. Once the mail is in the vertical position, the moveable tray bottom may lift the mail product until it is elevated out of the tray for movement into other automation equipment without tray wall interference.