Roller Wetting Control for Long-Term Adhesion Prevention

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Solution Overview

Problem

Existing roller systems in rubber and silicone material production face issues with material adhesion to rollers, leading to downtime and reduced production efficiency, as previous solutions like optimized roller surfaces and temperature control provide only short-term relief.

Innovation Solution

A wetting device is integrated into the roller system to apply a liquid, such as water or a water-soap mixture, to rollers to prevent adhesion, using adhesion sensors to control the application based on detected adhesion levels, allowing continuous or intermittent wetting as needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If optimized roller surfaces or temperature control are used, then material adhesion is reduced in the short term, but adhesion reappears after a few weeks requiring manual removal

Engineering Contradiction:
Improveadhesion prevention effectivenessVSAvoidduration of adhesion prevention
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The system uses sensors to detect material buildup on rollers and automatically triggers a wetting device to apply liquid to the rollers. This self-monitoring and self-cleaning mechanism eliminates the need for manual intervention and maintains continuous effectiveness without the temporary relief characteristic of previous solutions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements a feedback loop where sensors continuously monitor the roller surfaces for material adhesion and provide signals to the control system. The control system then activates the wetting device only when needed, creating a responsive system that maintains adhesion prevention effectiveness indefinitely through automatic adjustment rather than fixed-duration solutions.

Inventive Principle:
Principle #23Feedback

2Reliability

If manual removal of material from rollers is performed, then adhesion is eliminated, but production downtime increases

Engineering Contradiction:
Improveadhesion-free operationVSAvoidproduction line efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system automatically detects material buildup using sensors and activates the wetting device to clean the rollers in real-time during operation. This eliminates the need to stop production for manual cleaning, maintaining both adhesion-free operation and continuous productivity without the downtime associated with manual intervention.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The automatic sensing and wetting system operates continuously during production, ensuring rollers remain free of material adhesion throughout the manufacturing process. This continuous automated maintenance preserves production line efficiency by eliminating the intermittent shutdowns required for manual removal while sustaining reliable adhesion prevention.

Inventive Principle:
Principle #20Continuity of useful action

3Reliability

If liquid is applied continuously to rollers, then adhesion is prevented, but liquid consumption increases

Engineering Contradiction:
Improveadhesion preventionVSAvoidliquid consumption
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The system uses sensors to detect when material adhesion occurs on the rollers and provides feedback to the control system. The wetting device is activated only when adhesion is detected and deactivated when the surface is clean, creating a demand-responsive system that maintains reliable adhesion prevention while minimizing liquid consumption to only when necessary.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Instead of continuous liquid application, the system implements periodic wetting cycles triggered by sensor detection of material buildup. The wetting device operates intermittently based on actual adhesion conditions rather than continuously, achieving effective adhesion prevention through targeted periodic treatment that significantly reduces overall liquid consumption.

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 system effectively reduces long-term material adhesion, enhancing production line availability and throughput by minimizing manual intervention and optimizing liquid use.

Implementation Method 1

a wetting device for applying a liquid to at least one roller. The wetting is intended to reduce material adhesion to the roller

Methodology Applied
Scientific EffectWetting: Wetting

Implementation Method 2

a liquid film is applied to a roll to prevent particles from adhering to the roll

Methodology Applied
Scientific EffectLubrication: Lubrication

Data Source

PatentEP4247630B1Rolling installation comprising a wetting device and method for operating a rolling installation
Publication Date: 2026.03.25 HARBURG FREUDENBERGER MASCHINENBAU GMBH
  • EP4247630B1 patent drawingFigure 1~2
  • EP4247630B1 patent drawingFigure 3

AI summary

The invention relates to a rolling installation (1) for rolling a material (3), which comprises one or a plurality of rollers (10, 11) and a wetting device (13), for applying a liquid to at least one roller (10, 11) in order to thereby reduce an adhesion of the material (3) to the roller (10, 11). The invention also relates to a wetting device for applying a liquid to one or a plurality of rollers of a rolling installation and to a method for operating a rolling installation for rolling a material.