Smart Roller Guide Position Control for Rolling Mill Calibration

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Solution Overview

Problem

Roller guides in rolling mills can be incorrectly calibrated, manipulated, or set for the wrong product size, leading to early failure, unplanned downtime, and poor product quality, which are not easily detectable through visual inspection or manual methods.

Innovation Solution

A smart module with sensors and a microcontroller is integrated into the roller guide to provide real-time feedback and alerts, automatically calibrating and adjusting the guides, detecting orientation and sound issues, and communicating with a central computer to ensure correct installation and operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual calibration and inspection of roller guides is performed, then operators can identify installation errors, but the process is time-consuming, prone to human error, and may miss subtle issues

Engineering Contradiction:
Improvedetection accuracyVSAvoidcalibration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual visual inspection and mechanical calibration processes with electronic sensors and automated systems. Smart sensors detect guide orientation, position, and operational parameters automatically, eliminating the need for time-consuming manual inspection while improving detection accuracy through precise electronic measurements.

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

Solution Approach 2:

The roller guide system incorporates self-diagnostic capabilities through integrated sensors that automatically monitor their own installation status, orientation, and operational conditions. The system performs self-verification and alerts operators to any deviations, enabling the guide to monitor itself without requiring continuous manual inspection.

Inventive Principle:
Principle #25Self-service

2Manufacturing precision

If manual adjustment of roller guides is performed, then guides can be calibrated to correct orientation, but the process requires significant manual labor and can lead to inconsistencies

Engineering Contradiction:
Improvecalibration accuracyVSAvoidoperation complexity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical adjustment with automated motorized positioning systems controlled by electronic feedback from sensors. The system automatically calculates and executes the precise movements needed to achieve correct guide orientation, eliminating manual labor and ensuring consistent, repeatable calibration results regardless of operator skill level.

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

Solution Approach 2:

The system incorporates closed-loop feedback where sensors continuously monitor the roller guide position and orientation, comparing actual values against target values. The control system automatically adjusts the guide position based on this feedback until the correct orientation is achieved, ensuring high calibration accuracy while simplifying operation through automated control.

Inventive Principle:
Principle #23Feedback

3Reliability

If operators carefully inspect roller guides for correct setup, then installation errors can be detected, but the inspection process is tedious and errors may still be missed

Engineering Contradiction:
Improveoperation reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The roller guide system incorporates self-diagnostic capabilities through integrated sensors that automatically monitor their own installation status, orientation, and operational conditions. The system performs self-verification and alerts operators to any deviations, enabling the guide to monitor itself without requiring complex manual inspection procedures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates continuous feedback mechanisms where sensors monitor guide position, orientation, and operational parameters in real-time. This feedback is transmitted to the control system which alerts operators to any anomalies, significantly improving reliability by ensuring issues are detected immediately rather than being missed during manual inspection.

Inventive Principle:
Principle #23Feedback

4Extent of automation

If battery-powered smart modules are added to roller guides, then real-time monitoring and automated control are enabled, but the device complexity increases

Engineering Contradiction:
Improveautomation levelVSAvoidmodule complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent employs universal smart modules that can be integrated into various roller guide configurations. These modules perform multiple functions including sensing, processing, communication, and control within a single integrated unit, reducing the need for separate components and minimizing the increase in device complexity while maximizing automation benefits.

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

Data Source

PatentEP4351814B1A system for use in a rolling mill for controlling the position of the rolls
Publication Date: 2025.07.09 PRIMETALS TECHNOLOGIES USA LLC
  • EP4351814B1 patent drawingFigure 1
  • EP4351814B1 patent drawingFigure 2
  • EP4351814B1 patent drawingFigure 3

AI summary

Disclosed is a system for use in a rolling mill having: (a) a roll holder housing a plurality of rollers; (b) a smart module coupled to the roll holder, the smart module comprising: (1) a power source powering the smart module; (2) a microcontroller; (3) a motor, the motor, based on instructions from the microcontroller, controlling a position of the plurality of rollers by moving the roll holder; (4) one or more position sensors, the one or more position sensors detecting the position of the roll holder; and (5) a communication module, the communication module communicating with a central controlling computer to: (i) communicate the position of the roll holder and other sensor data to the central controlling computer, and (ii) receive instructions from the central controlling computer to control the position of the roll holder.