Spinner Wheel Temperature Tracking Despite Wear and Vibration
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Solution Overview
Problem
Existing fibre forming spinner wheels experience wear and vibrations over time, leading to inaccurate temperature regulation and reduced longevity, affecting the quality of produced fibres due to changes in vertical coordinates used for control.
Innovation Solution
A method involving temperature measurements at multiple angular positions to construct a curve, calculating the second derivative to identify specific points independent of wear and vibrations, and using these points for precise temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature regulation is based on vertical coordinates of spinner wheel points, then temperature control is initially accurate, but regulation accuracy deteriorates over time due to wear and vibrations
Solution Approach 1:
The patent transforms the static vertical coordinate system into a dynamic angular position system. Instead of relying on fixed vertical coordinates that deteriorate with wear, the system continuously tracks points based on their angular positions around the spinner wheel circumference. This dynamic approach allows the system to adapt to wear and vibrations by constantly updating the angular positions, thereby maintaining measurement and regulation accuracy throughout the spinner wheel's operational life.
2Productivity
If the spinner wheel operates at high speed with thermal and mechanical loads, then fibre production efficiency is high, but wear and deterioration of the spinner wheel increases
Solution Approach 1:
The patent implements a feedback mechanism where temperature measurements at multiple angular positions are continuously monitored and used to adjust the temperature profile along the spinner wheel strip. By detecting temperature variations that indicate wear or improper heating, the system can adjust heating parameters in real-time to compensate for wear, thereby extending the spinner wheel's operational life while maintaining high-speed production efficiency.
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 method ensures reliable and precise temperature regulation, ignoring wear and vibrations, thereby maintaining fibre quality and extending the spinner wheel's longevity by consistently targeting the correct points for control.
Implementation Method 1
The sensor is a pyrometer at least a part of which is pivotably mounted and sweeps an angle intersecting the vertical axis of symmetry of the fibre forming device
Implementation Method 2
processing said measurements by effecting a calculation of the second derivative of the curve of the temperature as a function of the angular position by means of a calculation unit; searching for at least one specific point for which the second derivative satisfies a predefined condition
Implementation Method 3
By the action of the centrifugal force the glass is projected through these orifices in the form of filaments
Implementation Method 4
To the centrifugal force there may be added stretching by a gas flow at high temperature and high speed emitted tangentially to the perforating wall of the peripheral strip of the centrifuge
Data Source
AI summary
The present invention concerns a method of determination of specific points of a rotary fibre forming spinner wheel (10) used in a fibre forming device (1), said method comprising the following steps:obtaining measurements of temperatures of the fibre forming spinner wheel obtained by means of a temperature measuring device (40) adapted to take measurements of temperatures of the spinner wheel at a plurality of angular positions of said measuring device in order to supply data to at least one calculation unit (30, 45) that constructs a curve representing the temperature as a function of the angular position of a temperature measuring device;processing said measurements by effecting a calculation of the second derivative of the curve of the temperature as a function of the angular position by means of a calculation unit (30);searching for at least one specific point for which the second derivative satisfies a predefined condition.