Conveyor Unit for Reverse Vending Machines with Movable Guide Structure

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Empty feeding machines face issues with residual fluids from returned containers, leading to adherence and unpleasant odors, requiring time-consuming cleaning and reducing machine availability due to confined spaces.

Innovation Solution

An input unit with a conveyor system featuring inclined grooves for liquid drainage, selectively movable conveyor belts, and a guide structure for easy access, along with a detection system for efficient empty type identification and maintenance, allowing for quick cleaning and replacement of components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the conveyor unit is fixed in the housing, then the structural stability is improved, but the accessibility for cleaning and maintenance deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidaccessibility for cleaning
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The conveyor unit is designed with selective movability along the transport direction, transitioning from a fixed state during operation to a movable state during cleaning/maintenance. The guide structure enables this dynamic reconfiguration, allowing the conveyor unit to be accessed for cleaning while maintaining structural stability during normal operation.

Inventive Principle:
Principle #15Dynamics

2Ease of repair

If the conveyor unit is made accessible for cleaning, then the ease of maintenance is improved, but the structural stability deteriorates

Engineering Contradiction:
Improveease of maintenanceVSAvoidstructural stability
Core Design Contradiction:
Ease of repairVSStability of the object's composition

Solution Approach 1:

The system dynamically adjusts the conveyor unit's position between fixed (stable) and movable (accessible) states based on operational requirements. The guide structure provides controlled movement only when needed for maintenance, preserving structural integrity during normal operation.

Inventive Principle:
Principle #15Dynamics

3Productivity

If the conveyor belts are continuously running, then the productivity is improved, but the energy consumption increases

Engineering Contradiction:
ImproveproductivityVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The conveyor belts operate periodically rather than continuously, running only when empties need to be transported. During cleaning and maintenance periods, the belts are stationary, reducing energy consumption while maintaining productivity during operational phases.

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 solution effectively manages residual liquids, facilitates easy cleaning and maintenance, and enhances the operational efficiency of empty feeding machines by preventing fluid adherence and odor issues, thus improving machine availability and reducing maintenance time.

Implementation Method 1

The conveyor may have a liquid flow (which ends, for example, at a front end thereof, for example, in the form of a forward-inclined groove or ramp), so that any residual liquid exiting the empties is derivable

Methodology Applied
Scientific EffectGravitational flow: Gravitation

Data Source

PatentEP3159856B1Input unit for an empties return machines and empties return machine
Publication Date: 2022.01.26 WINCOR NIXDORF INT GMBH
  • EP3159856B1 patent drawingFigure 1A~1B
  • EP3159856B1 patent drawingFigure 2A~2B
  • EP3159856B1 patent drawingFigure 3A~3B

AI summary

An input unit (1) for a reverse vending machine (111) comprises: a conveying unit (3) with at least one conveyor belt (5-1, 5-2) for picking up and transporting a reverse vending machine (105), and a guide structure for carrying and guiding the conveying unit (3) relative to a housing (111) of the reverse vending machine (100).