Flexible Divert Guide for Sortation Conveyor Stability

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Solution Overview

Problem

Sortation conveyor systems face challenges in controlling the diversion of articles from a primary conveying path to a divert path, often resulting in instability and inefficiency due to abrupt force applications during the diversion process.

Innovation Solution

A flexible divert guide with a compressible portion is introduced, allowing the pusher elements to engage and gradually accelerate articles laterally onto the divert path, minimizing initial contact force and maximizing time to improve stability and control during diversion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pusher elements are used to divert articles from the first conveying path to the divert conveying path, then articles can be selectively diverted, but abrupt force applications occur during diversion causing instability

Engineering Contradiction:

Improvestability of article diversionVSAvoidforce application during diversion

Core Design Contradiction:

ReliabilityVSForce

Solution Approach 1:

The divert guide surface is made flexible with compressible portions that change their physical state during article diversion. The compressible portions deform under article weight, gradually increasing the diversion force application time and reducing peak forces, thereby improving stability while maintaining effective diversion capability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The flexible divert guide with compressible portions acts as a pre-positioned cushioning element that absorbs and distributes the impact force during article diversion. The compressible material deforms to cushion the article's transition from the first conveying path to the divert conveying path, reducing abrupt force applications and improving diversion stability

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Ease of operation

If rigid divert tracks are used to guide pusher elements, then structural support is provided, but control of diverted articles deteriorates due to inability to adapt to varying article weights

Engineering Contradiction:

Improvecontrol of diverted articlesVSAvoidstructural support of divert track

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The divert guide is constructed with flexible materials including compressible portions that can deform under varying loads. This flexibility allows the divert guide to adapt to different article weights and sizes, improving control during diversion while maintaining sufficient structural support through the overall rigid framework of the sortation conveyor

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The divert guide transitions from a static rigid structure to a dynamic flexible structure that can adapt its shape and compliance based on the article being diverted. The compressible portions deform in response to article characteristics, enabling real-time adjustment of diversion parameters to maintain optimal control across varying operational conditions

Inventive Principle:

Principle #15Dynamics

3Speed

If abrupt force application is used during article diversion, then diversion speed is maintained, but the change in velocity is too large causing instability

Engineering Contradiction:

Improvediversion speedVSAvoidstability during velocity change

Core Design Contradiction:

SpeedVSStability of the object's composition

Solution Approach 1:

The flexible divert guide with compressible portions creates a periodic force application pattern during article diversion. Instead of a single abrupt force impulse, the compressible material deforms and rebounds in a controlled sequence, distributing the velocity change over multiple smaller force applications, thereby maintaining diversion speed while reducing instability

Inventive Principle:

Principle #19Periodic action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The flexible divert guide enhances the stability and control of the diversion process by reducing the change in velocity and increasing the time of force application, leading to a higher percentage of successful diversions and improved handling of various article weights.

Implementation Method 1

A flexible divert guide with a compressible portion is introduced, allowing the pusher elements to engage and gradually accelerate articles laterally onto the divert path

Methodology Applied

Scientific EffectCompression: Compression

Implementation Method 2

The flexible divert guide enhances the stability and control of the diversion process by reducing the change in velocity and increasing the time of force application

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS11987455B2Sortation conveyor with flexible divert guide

Publication Date: 2024.05.21 TREW LLC

AI summary

A sortation conveyor includes a conveying surface extending in a longitudinal direction and configured to carry an article along a conveying path. The sortation conveyor also includes a pusher element configured to be selectively diverted transversely relative to the longitudinal direction for engaging and diverting the article away from the conveying path. The sortation conveyor further includes a flexible divert guide including at least one compressible member configured to transition between an uncompressed state and a compressed state.