Conveyor System for Item Singulation via Dimensional Reduction

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conveyors often handle items in a jumbled or stacked three-dimensional arrangement, making it difficult to convey them one-at-a-time efficiently, as existing systems fail to effectively separate and align items in a two-dimensional configuration.

Innovation Solution

A conveyor system comprising inclined and declined conveyors with a high coefficient of friction belt and optional vacuum assistance, along with differential speed and angle adjustments, creates a mechanical discontinuity to separate items by altering gravitational forces, allowing items to slide and reorient into a two-dimensional arrangement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If items are conveyed in a three-dimensional stacked arrangement, then the conveyor can handle high volume throughput, but the items cannot be conveyed one-at-a-time and sorting precision deteriorates

Engineering Contradiction:
Improvethroughput volumeVSAvoiditem alignment precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The system transitions items from a three-dimensional stacked arrangement to a two-dimensional single-layer arrangement by utilizing a declined conveyor that redirects items at an angle. This dimensional reduction allows items to be conveyed one-at-a-time while maintaining high throughput capacity, resolving the contradiction between volume handling and alignment precision.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If existing conveyor systems are used without mechanical discontinuity, then the system structure remains simple, but items remain jumbled and cannot be effectively separated

Engineering Contradiction:
Improveconveyor structure complexityVSAvoiditem separation effectiveness
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The conveyor system is divided into distinct segments: an inclined conveyor, a declined conveyor, and a collimating conveyor. This segmentation creates mechanical discontinuities that effectively separate items from jumbled arrangements. The segmented structure maintains reasonable complexity while dramatically improving item separation effectiveness.

Inventive Principle:
Principle #1Segmentation

3Speed

If items are discharged onto a conveyor in a jumbled arrangement, then the discharge process is simple and fast, but the items pile up in layers and cannot be conveyed efficiently one-at-a-time

Engineering Contradiction:
Improvedischarge speedVSAvoidconveyance efficiency
Core Design Contradiction:
SpeedVSProductivity

Solution Approach 1:

The inclined and declined conveyors perform preliminary action by reorienting and separating items before they reach the main conveyance system. This preliminary rearrangement prevents piling and ensures items are positioned for efficient one-at-a-time conveyance, thereby improving overall conveyance efficiency while maintaining fast discharge rates.

Inventive Principle:
Principle #10Preliminary 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 system effectively reduces the number of layers and aligns items by introducing a sudden change in gravitational forces, enabling efficient one-at-a-time conveyance and improved throughput.

Implementation Method 1

A vacuum force may be used to enhance the total force acting hold the item stationary relative to the belt.

Methodology Applied
Scientific EffectVacuum force: Vacuum

Implementation Method 2

the frictional forces between items tends to increase from lower to higher levels. As the packages move on an inclined surface and are exposed to the mechanical discontinuity, the force difference across the two interfaces causes the packages to slip.

Methodology Applied
Scientific EffectFriction force: Friction

Implementation Method 3

a sudden change in the direction of gravitation forces act on the stream of items, to interrupt the continuous stream, as the laminar configuration of the items reorient or slide or move relative to one another

Methodology Applied
Scientific EffectGravitational forces: Gravitation

Data Source

PatentUS10870543B1Item singulation system and method
Publication Date: 2020.12.22 AMAZON TECH INC
  • US10870543B1 patent drawing
  • US10870543B1 patent drawing
  • US10870543B1 patent drawing

AI summary

A conveyor system for processing items, such as manufacturers' products or boxes, from a three-dimensional arrangement to a two-dimensional arrangement includes inclined and declined conveyors. The inclined conveyor may include vacuum through perforations in the belt. A collimating conveyor includes parallel belts that operation at different speeds to move the items laterally via shear forces.