Tire Building System Test Mode for Predictive Quality Control
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Solution Overview
Problem
Existing tire building methods lack predictive feedback to prevent quality issues during molding, leading to material and time wastage, especially when switching to new raw materials or tire components, as they only provide real-time quality control and require trial-and-error adjustments.
Innovation Solution
A tire building system and method that includes a test mode for obtaining measurements from a test strip wound with varying parameters, allowing for accurate prediction of production strip behavior and adjustment of building parameters to improve quality, with the option to switch between test and production modes and extrapolate measurements for a range of values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real-time quality control measurement is performed during tire molding, then quality problems can be detected during molding, but material and working time are still wasted when quality problems occur at or near the end of tire molding
Solution Approach 1:
The patent applies preliminary action by performing quality control measurements on a test strip before actual production molding. The system winds a test strip, measures its profile, and determines quality characteristics in advance. Based on these preliminary measurements, the system predicts whether quality problems will occur during subsequent production molding, allowing operators to adjust parameters beforehand and prevent material waste from defective tires.
2Reliability
If real-time quality control measurement is performed during tire molding, then quality problems can be detected during molding, but working time is still wasted when quality problems occur at or near the end of tire molding
Solution Approach 1:
The system performs preliminary quality assessment by measuring a test strip's profile and predicting production quality before actual tire molding begins. This advance prediction allows operators to adjust molding parameters or terminate poor-quality production cycles before they consume significant working time, preventing the scenario where entire tires must be molded only to be rejected at the end.
Solution Approach 2:
The system implements feedback by continuously measuring the test strip's profile during winding, comparing measurements against target values, and using this information to predict production quality. The feedback mechanism enables real-time parameter adjustments based on predicted quality outcomes, optimizing the balance between detection capability and working time efficiency.
3Manufacturing precision
If trial-and-error parameter adjustments are made based on terminated production cycles, then quality improvements can be achieved, but extensive waiting time is required to reach the same molding stage to verify improvements
Solution Approach 1:
The patent uses copying by creating a test strip that replicates the conditions and material properties of production strips. The test strip serves as a surrogate model, allowing quality predictions to be made without waiting for full production cycles. Measurements from the test strip copy provide immediate feedback on parameter effectiveness, eliminating the need to wait through entire molding cycles for verification.
4Measurement precision
If conventional profile measurement is performed after completion of tire molding, then quality assessment can be made, but the molding process is prolonged and material is wasted
Solution Approach 1:
The system performs preliminary quality assessment by measuring the test strip's profile during the winding stage, before production molding completes. This advance measurement provides quality information without prolonging the actual production molding process, maintaining productivity while enabling quality control.
Solution Approach 2:
The patent extracts the quality measurement function from the production molding process itself. By separating the quality assessment into a distinct test strip measurement step performed beforehand, the system avoids prolonging production molding while still achieving comprehensive quality evaluation. The test strip extraction allows independent quality testing without impacting production throughput.
Data Source
AI summary
A tire building method, in particular for strip-winding, includes the step of:providing a choice between a production mode for building a tire component and a test mode for obtaining test measurements, wherein the choice is provided prior to executing the test mode;wherein at least one or more building parameters is set prior to the building of the tire component based on test measurements performed on a test strip during the test mode.Also disclosed is a tyre building system and a measurement tool.