Rolling Mill Roller Guide Sensing for Auto-Calibration and Fault Alerts

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Solution Overview

Problem

Roller guides in rolling mills often suffer from incorrect calibration, manual manipulation, undetected sound issues, and incorrect product size settings, leading to early guide failure, unplanned downtime, and poor product quality, which are difficult to detect through visual inspection alone.

Innovation Solution

The integration of a smart module with a microcontroller, motor, position sensors, microphone, and communication module into the roller guide system, enabling real-time feedback and alerts for correct calibration, detecting manual adjustments, identifying sound problems, and ensuring the correct product size is set, using wireless communication with a central controlling computer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual calibration and inspection methods are used, then operators can identify guide positioning issues, but the process is time-consuming and prone to human error

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

Solution Approach 1:

The patent replaces manual visual inspection and mechanical calibration with electronic sensors (accelerometers, gyroscopes, position sensors) and automated motorized adjustment mechanisms. The smart module uses electronic detection to identify guide positioning and automatically controls motors to adjust roller positions, eliminating the need for time-consuming manual calibration while improving detection accuracy through electronic measurement systems.

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

Solution Approach 2:

The guide assembly performs self-calibration and self-adjustment through the smart module that continuously monitors position data from sensors and automatically controls motors to maintain correct positioning. The system serves itself by detecting positioning errors and executing corrections without operator intervention, reducing both calibration time and human error.

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 accuracyVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical adjustment with an automated control system comprising position sensors that detect roller orientation and motors that execute positioning commands. The smart module processes sensor data and controls motor movements to achieve precise calibration, eliminating manual labor and ensuring consistent, repeatable positioning accuracy across different guides and operators.

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

Solution Approach 2:

The system implements continuous feedback through position sensors that monitor roller guide orientation in real-time. The smart module receives this feedback data, compares it against target positions, and automatically adjusts motor commands to achieve and maintain precise calibration. This closed-loop control ensures high manufacturing precision while reducing the complexity of manual adjustment procedures.

Inventive Principle:
Principle #23Feedback

3Reliability

If visual inspection is used to detect guide positioning errors, then operators can identify incorrect calibration, but errors are not readily detectable without careful inspection

Engineering Contradiction:
Improvedetection reliabilityVSAvoidinspection difficulty
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent replaces subjective visual inspection with objective electronic detection using accelerometers, gyroscopes, and position sensors that continuously measure guide orientation and positioning. These sensors provide reliable, quantifiable data about guide status that is automatically processed by the smart module, eliminating the difficulty of visual detection and ensuring consistent reliability regardless of operator experience or attention level.

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

Solution Approach 2:

The smart module acts as an intermediary between the physical guide assembly and the detection system. It collects raw sensor data, processes positioning information, and presents clear diagnostic information to operators or automatically triggers adjustments. This intermediary layer simplifies the detection process by translating complex sensor readings into actionable insights, reducing inspection difficulty while maintaining high reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Extent of automation

If battery-powered smart modules are integrated into roller guides, then real-time monitoring and automated calibration are enabled, but the device complexity increases

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

Solution Approach 1:

The patent merges multiple functions (sensing, processing, communication, and motor control) into a single integrated smart module that is mounted on the roller guide. This consolidation reduces overall system complexity by eliminating separate components and interconnections while enabling comprehensive automation. The battery-powered module serves as a self-contained unit that provides real-time monitoring and automated calibration capabilities without requiring complex external infrastructure.

Inventive Principle:
Principle #5Merging (Combining)

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

This solution reduces guide failures, improves product quality, minimizes downtime, extends equipment life, and reduces manpower needed for maintenance, while allowing for automated calibration and real-time monitoring of roller guide conditions.

Implementation Method 1

an accelerometer that measures acceleration forces in order to determine the orientation of the roller guide

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Implementation Method 2

a motor that adjusts a position of the rollers by moving the roll holder

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentUS11701694B2Automated calibration and realtime communication of data, problems, damage, manipulation, and failure from a network of battery powered smart guide nodes within a rolling mill
Publication Date: 2023.07.18 PRIMETALS TECHNOLOGIES USA LLC
  • US11701694B2 patent drawing
  • US11701694B2 patent drawing
  • US11701694B2 patent drawing

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.