Unvulcanized Tyre Dynamic Balancing Before Vulcanization
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Solution Overview
Problem
Existing tire preparation methods fail to effectively address imperfections in unvulcanized tires, leading to issues such as vibrations and stability problems during vehicle operation, necessitating improved quality control and manufacturing optimization.
Innovation Solution
A method involving dynamic balance measurement and correction of unvulcanized tires through categorization, positioning adjustments, and dynamic balancing using robotic arms and rubber elements, along with radial force variation analysis, to ensure precise tire assembly and vulcanization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tire preparation methods are used without dynamic balance measurement, then manufacturing process is simpler and faster, but tire quality deteriorates with vibrations and stability problems
Solution Approach 1:
The patent applies preliminary action by measuring the dynamic balance of the unvulcanized tire before vulcanization and correcting any imperfections at this stage. The tire is classified into categories based on balance measurements, and corrections are made before the tire is cured, preventing quality issues from developing in the final product.
Solution Approach 2:
The patent implements feedback by using measuring devices to assess the dynamic balance of unvulcanized tires, classifying them into different categories based on balance imperfections, and then applying targeted corrections. This closed-loop approach ensures that quality issues are identified and resolved systematically.
2Reliability
If dynamic balance measurement and correction is implemented, then tire quality improves by reducing vibrations, but manufacturing time increases
Solution Approach 1:
By performing balance measurement and correction on unvulcanized tires before vulcanization, the patent avoids the need for time-consuming post-vulcanization adjustments. The preliminary correction prevents quality issues from manifesting in the final product, reducing overall manufacturing time despite the added measurement step.
Solution Approach 2:
The patent applies local quality by classifying tires into different categories based on their specific balance imperfections and applying targeted corrections only where needed. This selective approach optimizes manufacturing time by focusing resources on tires that require correction rather than processing all tires uniformly.
3Measurement precision
If unvulcanized tires are classified into multiple categories based on balance imperfections, then quality control precision improves, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing unvulcanized tires into distinct categories (first category with no or minor imperfections, second category with correctable imperfections, third category with severe imperfections) based on dynamic balance measurements. This segmentation enables targeted quality control measures for each group, improving measurement precision while managing system complexity through structured classification.
Data Source
Figure 1~2

AI summary
The present invention relates to a method for preparing a tire comprising quality control by measuring the dynamic balance of an unvulcanized tire and a system or plant for preparing tires to carry out the method according to the present invention.