Casting Table Assembly Maintenance With Removable Robotic Tools

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Solution Overview

Problem

Existing maintenance processes for mould tables in vertical semi-continuous casting are manual, tedious, and pose safety risks due to heavy lifting and potential injuries, with potential for quality issues and inefficiencies.

Innovation Solution

An automated system using robots and sensors to handle, clean, and reassemble mould tables, incorporating devices like starting head grabs, brushing, and screwing mechanisms, with integrated suction and detection systems to ensure safe and efficient operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual maintenance operations are used for mould tables, then workers can perform cleaning and inspection tasks, but workers are exposed to safety risks and physical injuries due to heavy lifting and tedious manual work

Engineering Contradiction:
Improveworker safetyVSAvoidmanual labor intensity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system enables self-service automation where robots perform maintenance tasks independently. The robotic system can autonomously navigate, identify components, and execute cleaning and inspection operations without human intervention, thereby eliminating worker exposure to safety risks while maintaining operational effectiveness

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical operations are replaced with automated robotic systems. The patent employs robots equipped with specialized end effectors, sensors, and cleaning mechanisms to substitute human workers in performing heavy lifting, cleaning, and inspection tasks, thereby improving safety while reducing labor intensity

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

2Productivity

If manual cleaning operations are performed on mould tables, then cleaning tasks can be completed, but the process is tedious and time-consuming

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidmaintenance duration
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The robotic system enables continuous maintenance operations without the interruptions inherent in manual work. Robots can continuously navigate between components, perform cleaning actions, and transition to next tasks without breaks, thereby increasing productivity and reducing total maintenance time

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system employs dynamic robotic arms with multiple degrees of freedom that can adaptively position cleaning tools and adjust motion paths in real-time. This dynamic capability allows efficient coverage of complex mould table geometries, improving productivity while minimizing maintenance duration

Inventive Principle:
Principle #15Dynamics

3Productivity

If automated robotic systems are used for maintenance, then worker safety is improved and efficiency increases, but the device complexity and initial investment increase

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidautomation system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The automated maintenance system is divided into modular functional units including navigation modules, cleaning modules, inspection modules, and control systems. This segmentation allows independent optimization of each subsystem, simplifying overall system complexity while maintaining high productivity through coordinated operation of specialized modules

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The robotic system is designed with multi-functional capabilities to perform multiple maintenance tasks (cleaning, inspection, component handling) using a single integrated platform. This universality reduces the need for multiple specialized devices, thereby managing device complexity while achieving high productivity across various maintenance operations

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

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 simplifies and automates the maintenance process, reducing manual labor, enhancing safety, and improving the quality and efficiency of mould table maintenance, minimizing human exposure to hazards and ensuring thorough cleaning.

Implementation Method 1

The robot is provided with a suction system, which is adapted to cooperate with a suction device

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP4461433B1Installation for the maintenance, in particular the cleaning, of a casting table assembly and automated maintenance method using such installation
Publication Date: 2025.10.15 DUBAI ALUMINUM PJSC & NEWSOUTH INNOVATIONS PTYLTD
  • EP4461433B1 patent drawingFigure 1~4
  • EP4461433B1 patent drawingFigure 5
  • EP4461433B1 patent drawingFigure 6

AI summary

This installation (I) comprises a main robot (3), said main robot comprising a body as well as coupling means (34) mobile with respect to said body, a starting head grab device (40), a brushing device (42), for brushing upper part of casting table, a screw device (44), for screwing/unscrewing each mould of the casting table with respect to upper table; and a mould grab device (46), each device being provided with complementary coupling means (402, 422, 442, 462) adapted to cooperate with main robot so as to permit a removable attachment between each main operative device and said main robot. Moreover, the installation is provided with control means (9) comprising a human machine interface (90), control lines (95-98) adapted, upon receipt of inputs actuated by an operator, to transmit control orders to at least said main robot (3), said displacement means (37) and Prior art maintenance is essentially based on manual operations. The installation and method according to the invention enable the user to facilitate the maintenance of casting tables, moulds and mould components such as starting heads.