Simultaneous Temperature Sensor Testing on Casting Molds

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Solution Overview

Problem

The existing methods for testing the functionality of temperature sensors on a casting mold are time-consuming and require manual, sequential testing, leading to temporary shutdowns of the plant and increased maintenance costs due to prolonged system downtime.

Innovation Solution

A device with an electronic evaluation system and a heating plate or mat that allows simultaneous heating and evaluation of multiple temperature sensors, reducing testing time and enabling quicker mold reuse.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If temperature sensors are tested manually and sequentially, then each sensor can be tested individually, but the testing process becomes time-consuming and causes temporary plant shutdowns

Engineering Contradiction:
Improvesensor functionality assessmentVSAvoidtesting time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent merges multiple individual sensor testing operations into a single simultaneous testing process. The heating device applies thermal stimulus to all sensors on the mold surface at the same time, and the evaluation electronics process all sensor signals concurrently, transforming sequential testing into parallel testing to dramatically reduce total testing time.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces manual mechanical testing procedures with an automated electronic testing system. The heating device provides controlled thermal stimulation, while evaluation electronics automatically capture and analyze temperature signals from all sensors simultaneously, eliminating the need for manual intervention and significantly accelerating the testing process.

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

2Measurement precision

If temperature sensors are tested manually, then individual sensor functionality can be determined, but the mold cannot be used to produce melt during testing

Engineering Contradiction:
Improvesensor measurement characteristicsVSAvoidmold utilization
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces time-consuming manual testing with an automated electronic testing system that operates rapidly and concurrently for all sensors. This automation enables the testing process to be completed quickly enough that the mold can be returned to production use almost immediately, thereby maintaining high mold utilization while still ensuring accurate sensor functionality assessment.

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

3Measurement precision

If temperature sensors are tested sequentially, then each sensor can be evaluated individually, but maintenance costs increase due to prolonged system downtime

Engineering Contradiction:
Improveindividual sensor evaluationVSAvoidmaintenance costs
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The patent combines individual sensor evaluation capabilities with simultaneous testing of all sensors. The evaluation electronics are configured to process signals from multiple sensors at the same time, maintaining the ability to assess each sensor's measurement characteristics individually while completing the entire testing process in a single operation, thereby minimizing downtime and reducing maintenance costs.

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 approach significantly reduces system downtime and maintenance costs by allowing rapid assessment of temperature sensor functionality, enabling the casting mold to be used more efficiently.

Implementation Method 1

at least one heating plate (6) or heating mat that can be brought into close proximity to the temperature sensors (3) beforehand for simultaneously heating the temperature sensors (3)

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP3533533B1Device and method for testing a functionality of temperature sensors distributed on a cast mould
Publication Date: 2021.09.01 SMS GROUP GMBH
  • EP3533533B1 patent drawingFigure 1

AI summary

Device (1) for testing the functionality of temperature sensors (3) distributed around a mold (2). To enable rapid testing of the functionality of the temperature sensors (3), the device (1) comprises at least one evaluation electronics unit (5) connected to at least two temperature sensors (3) for simultaneously acquiring and evaluating temperature signals from the temperature sensors (3) and at least one heating plate or heating mat (6) that can be arranged near the temperature sensors (3) for simultaneously heating the temperature sensors (3).