Grinder Roller Sensor Integration with Ceramic Cap

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Solution Overview

Problem

Existing sensors for grinder rollers are often located outside the rollers, making them susceptible to contamination and prone to errors due to temperature measurement deviations.

Innovation Solution

The integration of sensors into the grinder roller itself, with the sensor enclosed by a ceramic cap, allows for direct measurement and contactless data transmission, reducing contamination risks and improving precision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If sensors are arranged outside the grinder roller, then the sensor is accessible and can be installed easily, but the sensor is susceptible to contamination and measurement precision deteriorates

Engineering Contradiction:
Improvesensor installation accessibilityVSAvoidtemperature measurement accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The sensor is integrated directly into the grinder roller structure, merging the sensing function with the roller body. This eliminates the gap between sensor and measurement point, ensuring accurate temperature readings while the ceramic cap protects the sensor from contamination in the grinding environment.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

A ceramic cap is introduced as an intermediary element between the sensor and the external environment. The ceramic material provides both mechanical protection against contamination and electromagnetic transparency for signal transmission, resolving the contradiction between sensor protection and measurement accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If sensors are arranged outside the grinder roller, then the sensor structure is simple, but the sensor is prone to errors due to temperature measurement deviations

Engineering Contradiction:
Improvesensor arrangement simplicityVSAvoidmeasurement reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The sensor is embedded within the grinder roller, combining the measurement function with the existing roller structure. This integration ensures the sensor is positioned exactly where temperature measurement is critical, improving reliability without significantly increasing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ceramic cap serves as a mediator that maintains signal transmission while protecting the sensor from the harsh thermal and mechanical environment, thereby improving measurement reliability without complicating the sensor arrangement.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of repair

If sensors are arranged outside the grinder roller, then the sensor can be accessed for maintenance, but the sensor is extremely susceptible to contamination

Engineering Contradiction:
Improvesensor accessibility for maintenanceVSAvoidcontamination susceptibility
Core Design Contradiction:
Ease of repairVSObject-affected harmful factors

Solution Approach 1:

The removable ceramic cap acts as an intermediary protective barrier that can be taken off for sensor maintenance while normally shielding the sensor from contamination. This resolves the contradiction by providing both protection during operation and accessibility when needed.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The sensor assembly is segmented into the sensor element, ceramic cap, and mounting structure as separate components. This allows the ceramic cap to be removed for sensor maintenance while the sensor remains protected during normal operation, balancing accessibility and contamination protection.

Inventive Principle:
Principle #1Segmentation

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 provides a more precise and reliable monitoring system for grinder rollers, reducing the risk of contamination and improving the accuracy of temperature measurements.

Implementation Method 1

the sensor is enclosed in the receiving opening by means of a cap made of ceramic material

Methodology Applied
Scientific EffectElectromagnetic wave transmission: Electromagnetic Induction

Data Source

PatentUS12303911B2Roller with a sensor
Publication Date: 2025.05.20 BUHLER
  • US12303911B2 patent drawing
  • US12303911B2 patent drawing

AI summary

The present invention relates to a grinder roller for use in a grinder roller pair, in particular a grain roller pair, comprising at least one sensor for the detection of measured values which characterize a state of the grinder roller, wherein the sensor is arranged in a receiving opening of the grinder roller, at least one data transmitter for the contactless transmission of the measured values of the at least one sensor to a data receiver, wherein the sensor is enclosed in the receiving opening by means of a cap made from ceramic material. Furthermore, the present invention relates to a corresponding grinder roller pair, to a production plant which comprises a grinder roller pair of this type, to a corresponding cap, to a kit consisting of a corresponding cap and a fastening device, and to a method for operating a product processing plant of this type.