Tire Bead Measurement System Using Optical Lenses
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Solution Overview
Problem
Existing measurement systems for tire beads often distort the bead during measurement, hiding defects and failing to provide accurate and precise measurements across various sizes and shapes.
Innovation Solution
A non-contact measurement system using cameras with entocentric and telecentric lenses, supported by a transparent surface and load cells, to determine parameters like inner diameter, height, and weight without physical contact, allowing for precise and accurate measurements of different tire bead sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If contact measurement devices are used to measure tire bead parameters, then measurement can be performed, but the bead is distorted during measurement which hides defects and reduces measurement accuracy
Solution Approach 1:
The patent replaces mechanical contact measurement devices with optical measurement systems including cameras and light sources. The system uses optical fields instead of mechanical contact to capture bead images from multiple angles, eliminating physical distortion while maintaining measurement capability. This substitution of mechanical systems with optical fields directly resolves the contradiction between measurement accuracy and bead distortion.
Solution Approach 2:
The patent introduces a transparent support surface as an intermediary between the bead and the measurement system. This transparent surface allows optical measurement devices to capture images through it while providing stable support for the bead, enabling contactless measurement while maintaining proper positioning and support conditions.
2Adaptability or versatility
If a single measurement system is used for various sizes and shapes of beads, then versatility is improved, but measurement precision may be compromised due to the diversity of parameters
Solution Approach 1:
The patent divides the measurement task into multiple independent optical measurement devices, each equipped with specific lenses (telecentric, entocentric, macro) optimized for different measurement needs. This segmentation allows each device to maintain high precision for its specific function while the collective system achieves versatility across various bead sizes and shapes.
Solution Approach 2:
The patent creates a universal measurement platform that can handle various bead types by combining multiple measurement devices with different optical capabilities. The system uses a transparent support surface and abutment surfaces that work universally across different bead configurations, while the array of cameras with different lenses provides the necessary specialized measurement functions for each bead type.
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
Enables accurate and precise measurement of tire bead parameters without distorting the bead, facilitating high-quality control across multiple sizes and shapes, improving manufacturing efficiency and accuracy.
Implementation Method 1
a transparent body defining the support surface
Implementation Method 2
At least one load cell may be positioned at least partially between the background surface and the support surface. The at least one load cell may be configured to measure the weight of the tire component.
Implementation Method 3
The second measurement device may include a second camera having a telecentric lens
Implementation Method 4
The measurement device may have a first camera with an entocentric lens
Data Source
AI summary
The current embodiments provide a system for determining a parameter of a tire component. The system may have a background surface, a first measurement device configured to measure a dimension with respect to the reference surface and a support surface located at least partially between the first measurement device and the reference surface, where the support surface is configured to support the tire component. The parameter may correspond to the dimension on the background surface.