Robotic Picking System Bin for Automated Liquid Removal Under Grid

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Solution Overview

Problem

Existing storage and retrieval systems face challenges in efficiently removing liquids from under stacked containers following spillages or sprinkler deployments, which requires manual intervention and disrupts operations, leading to downtime.

Innovation Solution

The implementation of bins with absorbent or vacuum cleaning means integrated into the storage system, allowing robotic load handling devices to rapidly absorb or vacuum up liquids using absorbent materials or specialized bins that can be compressed to expel liquids, and optionally equipped with vacuum cleaners to facilitate efficient liquid removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual intervention is used to remove liquids from under stacked containers, then liquid removal can be achieved, but system downtime increases and operational efficiency decreases

Engineering Contradiction:
Improveliquid removal capabilityVSAvoidsystem operational efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system employs robotic load handling devices that are already present in the storage system to automatically remove liquids. These devices self-serve by equipping themselves with absorbent bins or vacuum cleaners and autonomously navigating to liquid spill locations without requiring external manual intervention, thus maintaining continuous operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The robotic load handling devices perform multiple functions: they not only transport containers but also remove liquids from under stacked containers. By integrating liquid removal capabilities into existing multi-functional robotic devices, the system eliminates the need for separate manual intervention while maintaining operational efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If the storage system continues operating during liquid spillages, then productivity is maintained, but liquid accumulation may cause harmful effects

Engineering Contradiction:
Improvecontinuous operation capabilityVSAvoidliquid accumulation damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The robotic load handling devices continuously monitor and remove liquids from under stacked containers during normal storage operations. This continuous liquid removal action prevents harmful accumulation while maintaining uninterrupted productivity, as the robotic devices operate concurrently with container storage and retrieval activities.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system incorporates sensors that detect liquid spillages and provide feedback to the control system. This triggers robotic load handling devices to navigate to the spill location and initiate liquid removal operations, creating a closed-loop feedback mechanism that maintains system productivity while preventing liquid damage accumulation.

Inventive Principle:
Principle #23Feedback

3Reliability

If absorbent bins are used for liquid removal, then liquid absorption is effective, but the bins require compression to expel liquids which adds operational steps

Engineering Contradiction:
Improveliquid absorption effectivenessVSAvoidliquid expulsion process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The robotic load handling device employs a pump system with a nozzle to forcibly expel absorbed liquids from the bin. This pneumatic/hydraulic mechanism efficiently removes liquids by applying pressure through the nozzle, eliminating the need for manual compression steps and simplifying the overall liquid removal process.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The manual compression action is replaced by an automated pump system. The pump uses mechanical or electrical power to create pressure that forces liquids out of the absorbent bin through a nozzle, substituting the complex manual compression operation with a simpler automated fluid delivery system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

This solution enables automated and rapid liquid removal from under the grid, minimizing downtime and allowing continuous operation of the storage and retrieval system without the need for manual intervention.

Implementation Method 1

urging the absorbent means against the liquid to draw the liquid into the absorbent means

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

optionally equipped with vacuum cleaners to facilitate efficient liquid removal

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP4350106A1Robotic picking system device and method
Publication Date: 2024.04.10 OCADO INNOVATION LTD
  • EP4350106A1 patent drawingFigure 1
  • EP4350106A1 patent drawingFigure 2
  • EP4350106A1 patent drawingFigure 3a

AI summary

A bin 10A is described for use on a robotic picking system grid. The bin is capable of removing liquids from beneath a robotic picking system following spillages or sprinkler deployments.