Tyre Elongated Element Geometry Monitoring
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Solution Overview
Problem
The challenge lies in ensuring the accurate assembly and compliance of tyre components during the tyre building process, particularly with the winding of continuous elongated elements, where deviations in geometry can lead to non-compliant tyres that may only be detected post-production, affecting road behavior.
Innovation Solution
A method and apparatus that utilize electromagnetic radiation to monitor the geometry of the continuous elongated element before deposition on the forming drum, comparing the measured parameters with reference values to ensure compliance with design specifications, thereby preventing non-compliant tyre formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous elongated elements are wound on the forming drum during tyre building, then tyre components can be assembled efficiently, but geometry deviations may occur that lead to non-compliant tyres
Solution Approach 1:
The control device measures the geometry of the continuous elongated element before it is wound on the forming drum, allowing deviations to be detected and corrected in advance. The emitter projects electromagnetic radiation onto the element and the detector captures the geometry data prior to deposition, enabling preliminary verification of width and shape compliance.
Solution Approach 2:
The control device provides real-time feedback by comparing measured geometry parameters with reference values. When deviations are detected, the system can signal adjustments to the winding process or dispensing head, creating a closed-loop control system that maintains manufacturing precision while preserving productivity.
2Reliability
If traditional inspection methods are used after tyre production, then non-compliant tyres can be detected, but invasive or destructive testing is required
Solution Approach 1:
The patent replaces mechanical inspection methods with an optical/electromagnetic system. The emitter projects electromagnetic radiation (such as laser) onto the continuous elongated element and the detector captures the reflected or transmitted radiation to determine geometry parameters, eliminating the need for physical contact or destructive testing.
Solution Approach 2:
Electromagnetic radiation serves as an intermediary between the measurement system and the continuous elongated element. The radiation carries information about the element's geometry from the measurement point to the detector, enabling non-contact measurement and analysis of width, shape, and other dimensional parameters.
3Manufacturing precision
If geometry control is implemented during the building process, then non-compliant tyres can be prevented, but additional monitoring equipment is required
Solution Approach 1:
The control device integrates multiple functions into a single system: the emitter projects electromagnetic radiation for measurement, the detector captures geometry data, and the control unit processes information and compares it with reference values. This multi-functional integration reduces overall system complexity while maintaining comprehensive geometry control.
Solution Approach 2:
The system creates an optical copy or digital representation of the continuous elongated element's geometry through electromagnetic radiation measurement. This digital model allows for analysis and comparison with reference geometries without physically manipulating the element, simplifying the monitoring approach while maintaining measurement accuracy.
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 allows for in-line quality control, preventing non-compliant tyres from being produced and enabling early detection of deviations, thus ensuring tyres meet design specifications without the need for invasive or destructive testing.
Implementation Method 1
a control device operatively active between said dispensing head and said first contact area and configured for checking a width of said continuous elongated element before its deposition on said tyre being processed
Implementation Method 2
projecting at least one beam of an electromagnetic radiation on a section of said continuous elongated element dispensed by said dispensing head and interposed between the dispensing head and a first contact area of the continuous elongated element with a radially outer surface of said tyre being processed
Data Source
AI summary
An apparatus for building and for checking a continuous elongated element during the building of a tyre for vehicle wheels. A beam of an electromagnetic radiation is projected on a section of the continuous elongated element dispensed by a dispensing head and interposed between the dispensing head and a first contact area of the continuous elongated element with a radially outer surface of a tyre being processed. An image of a radiation reflected by the section is acquired. A first parameter related to the image is detected, and the first parameter is compared with a second reference parameter.