Tyre Building Control Using Sleeve Diameter Models
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The tyre building process is prone to quality and repeatability issues due to manual setup and reliance on operator experience, leading to inconsistencies in the finished product.
Innovation Solution
A method and system that utilize computing parameters and mathematical models to control the tyre production process, determining key parameters such as the axial length of the green tyre based on the difference between the inner diameters of the crown and carcass sleeves, and applying these to machines to ensure accurate and reliable building processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual setup and operator experience are used to control the tyre building process, then ease of operation is maintained, but manufacturing precision and reliability deteriorate due to quality and repeatability issues
Solution Approach 1:
The patent replaces manual mechanical setup operations with an automated computer-controlled system. The control unit automatically determines machine parameters (inflation pressure, positioning, timing) based on tyre specifications, eliminating reliance on operator experience and manual adjustments. This substitution of manual mechanical operations with automated computational control resolves the contradiction by improving precision while accepting increased system complexity.
Solution Approach 2:
The patent changes the control parameters from operator-dependent manual settings to computer-calculated precise parameters. The system automatically determines critical parameters such as inflation pressure profiles, carcass sleeve positioning, and timing sequences based on tyre geometry and material properties. This parameter transformation from empirical to calculated values improves manufacturing precision and repeatability.
2Reliability
If automated computer control is implemented to improve manufacturing precision, then tyre building accuracy improves, but device complexity increases
Solution Approach 1:
The patent replaces manual mechanical setup operations with an automated computer-controlled system. The control unit automatically determines machine parameters (inflation pressure, positioning, timing) based on tyre specifications, eliminating reliance on operator experience and manual adjustments. This substitution of manual mechanical operations with automated computational control resolves the contradiction by improving precision while accepting increased system complexity.
Solution Approach 2:
The system uses digital copies of tyre specifications and mathematical models to determine building parameters. Instead of relying on physical prototypes or manual measurements, the control unit processes digital tyre data through computational models to automatically generate precise control instructions, improving repeatability while managing system complexity through information-based control.
3Manufacturing precision
If mathematical models and computing parameters are used to control the building process, then manufacturing precision improves, but ease of operation deteriorates
Solution Approach 1:
The patent replaces manual mechanical setup operations with an automated computer-controlled system. The control unit automatically determines machine parameters (inflation pressure, positioning, timing) based on tyre specifications, eliminating reliance on operator experience and manual adjustments. This substitution of manual mechanical operations with automated computational control resolves the contradiction by improving precision while accepting increased system complexity.
Solution Approach 2:
The system performs self-service by automatically calculating and adjusting building parameters without operator intervention. The control unit independently processes tyre specifications, applies mathematical models, and generates control instructions for the building machine. This self-service capability improves precision by eliminating human error while reducing the operational burden on operators.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Method for controlling a tyre production process, wherein a finished tyre is obtained from a green tyre through at least a curing process, comprising: determining first parameters (P1) describing said finished tyre; activating a processor (10) for computing, as a function of said first parameters (PI), second parameters (P2) describing a carcass sleeve (100) and third parameters (P3) describing a crown sleeve (110), said carcass sleeve (100) and said crown sleeve (110) being used for building said green tyre. The second parameters (P2) comprise at least one parameter representative of an outer diameter (D1) of said carcass sleeve (100). The third parameters (P3) comprise at least one parameter representative of an inner diameter (D2) of said crown sleeve (110). The method comprises retrieving, through said processor (10) a first mathematical model (MM1) describing a process of shaping said carcass sleeve (100) when the latter is shaped to adhere to the radially inner surface of said crown sleeve (110).