Pneumatic Empties Transport System for Reverse Vending Machines

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Solution Overview

Problem

Conventional reverse vending machines require manual handling of filled bags, leading to inefficient space utilization in collection containers, ergonomic issues due to heavy and awkward transport, and temporary unavailability of machines during bag exchange.

Innovation Solution

An automated empties transport system with an airstream generator and airlock device that allows for the automatic transport of empties from reverse vending machines to collection containers, utilizing an airstream to move empties through a conduit with adjustable diameter for efficient transport and minimizing blockages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If manual handling of filled bags is used, then the system is simple, but space utilization in collection containers is poor

Engineering Contradiction:
Improvesystem simplicityVSAvoidspace utilization in collection container
Core Design Contradiction:
Device complexityVSVolume of stationary object

Solution Approach 1:

The patent employs a pneumatic conveying system where containers are transported through pipelines using air pressure differentials. A suction device creates negative pressure to draw containers from the reverse vending machine through the pipeline to the collection container, eliminating manual handling and optimizing space utilization through automated container delivery.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Ease of manufacture

If manual transport of heavy bags is performed, then equipment cost is low, but ergonomic performance deteriorates

Engineering Contradiction:
Improveequipment costVSAvoidergonomic performance
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical transport with an automated pneumatic conveying system. The suction device and pipeline infrastructure substitute for human physical labor, automatically transporting containers from the reverse vending machine to the collection container, thereby eliminating ergonomic strain while maintaining cost-effectiveness.

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

3Ease of operation

If manual bag exchange is performed, then the system is simple to operate, but productivity decreases due to machine unavailability

Engineering Contradiction:
Improveoperational simplicityVSAvoidmachine availability
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The pneumatic conveying system operates continuously, maintaining a constant flow of containers from the reverse vending machine to the collection container. This eliminates interruptions caused by manual bag exchange, ensuring the reverse vending machine remains continuously available to serve consumers while automatically managing container transport.

Inventive Principle:
Principle #20Continuity of useful action

4Device complexity

If containers are transported manually, then the system is simple, but transport time increases

Engineering Contradiction:
Improvesystem simplicityVSAvoidtransport time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The pneumatic conveying system rapidly transports containers through the pipeline using controlled air pressure differentials. The suction device creates efficient airflow that quickly moves containers from the reverse vending machine to the collection container, dramatically reducing transport time compared to manual handling while maintaining system simplicity.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Data Source

PatentUS10040644B2Empties transport system and empties return system for suction of containers
Publication Date: 2018.08.07 WINCOR NIXDORF INT GMBH

AI summary

An empties transport system has an airstream transport device with an empties transport conduit, which has a first attachment point for attachment to the reverse vending machine and a second attachment point for attachment to the empties collection container, and an airstream generator, which is attached to the empties transport conduit and is designed to make available, in the empties transport conduit, a transporting airstream by means of which the empties passing via the first attachment point from the reverse vending machine the empties transport conduit are moved to the empties collection container, and an airlock device which is arranged on the first attachment point and via which the empties are transferable from the reverse vending machine to the empties transport conduit.