Individually Controllable Conveyor Elements for Automated Maintenance

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Solution Overview

Problem

Container treatment plants face challenges in maintaining individually controllable transport elements, leading to potential system standstill due to faulty elements, high operational costs, and complex manual inspection processes, with issues in tracking transport element positions and statuses during power failures.

Innovation Solution

A transport device with individually controllable transport elements, a maintenance device, and a control unit that monitors and guides transport elements along a transport track, using unique identification units and energy-buffered control circuits to ensure smooth operation and automatic maintenance, allowing for continuous production even during power outages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If manual inspection and maintenance of transport elements is performed, then maintenance can be carried out, but it is very complex and time-consuming

Engineering Contradiction:
Improvemaintenance complexityVSAvoidinspection time
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The transport elements perform self-diagnosis through integrated sensors that automatically detect their own status, eliminating the need for manual inspection. The system monitors bearing conditions, position accuracy, and operational parameters autonomously, reducing both maintenance complexity and inspection time.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A feedback mechanism using sensors and control units continuously monitors transport element performance and provides real-time information about condition, position, and operational status. This automated feedback loop enables proactive maintenance scheduling without manual inspection requirements.

Inventive Principle:
Principle #23Feedback

2Productivity

If a large number of separate transport elements are used, then containers can be transported efficiently, but a single damaged element can stop the entire process section

Engineering Contradiction:
Improvecontainer transport efficiencyVSAvoidsystem continuity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The transport system is divided into independent, modular transport elements that operate autonomously. Each element is equipped with its own control unit and sensors, allowing individual maintenance or replacement without affecting other elements. This segmentation enables continuous operation even when specific elements require service.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary detection of potential failures through continuous monitoring of bearing conditions, position accuracy, and operational parameters. By identifying issues before they cause system stoppage, the control unit can schedule maintenance during idle periods or redirect containers through alternative paths, maintaining continuous productivity.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If unique identification units are assigned to transport elements, then precise tracking is possible, but the system becomes more complex

Engineering Contradiction:
Improveposition tracking accuracyVSAvoididentification system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A universal identification system using standardized sensors and communication protocols tracks all transport elements regardless of their specific characteristics. The control unit manages identification data for elements with different bearing types, positions, and operational statuses using a unified approach, achieving precise tracking without proportionally increasing system complexity.

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

Solution Approach 2:

Instead of using complex physical identification markers on each transport element, the system creates digital copies of element status and position data through sensors and control units. This virtual identification approach maintains precise tracking while minimizing physical complexity, as the same sensor infrastructure serves both positioning and identification functions.

Inventive Principle:
Principle #26Copying

4Reliability

If transport elements are kept in perfect technical condition, then system reliability is maintained, but inspection and maintenance costs increase

Engineering Contradiction:
Improvetransport element conditionVSAvoidmaintenance system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements periodic automated inspection cycles that monitor transport element conditions at scheduled intervals rather than continuously. Sensors detect bearing wear, position deviations, and operational anomalies during these periodic checks, maintaining high reliability while reducing the complexity and cost of continuous monitoring infrastructure.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The monitoring system tracks changes in operational parameters such as bearing temperature, vibration levels, position accuracy, and movement patterns. By analyzing parameter trends rather than requiring constant physical inspection, the system maintains transport element reliability while reducing maintenance system complexity. The control unit adjusts inspection frequency based on detected parameter changes.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3044131B1Apparatus and method for servicing conveyor elements in a container handling system
Publication Date: 2018.02.21 KRONES AG
  • EP3044131B1 patent drawingFigure 1
  • EP3044131B1 patent drawingFigure 2
  • EP3044131B1 patent drawingFigure 3

AI summary

The present invention provides a conveyor arrangement for conveying containers in a container handling system, comprising a conveyor track, at least one conveyor element movably mounted on the conveyor track and used to convey one or more containers, a conveyor element servicing device connected to the conveyor track, and an open-loop and/or closed-loop controller; wherein the conveyor track and the conveyor element are designed so that the conveyor element can be individually controllably moved along the conveyor track by the open-loop and/or closed-loop controller, and wherein the open-loop and/or closed-loop controller is designed to deliver the conveyor element to the servicing device in accordance with at least one state parameter of the conveyor element.