Tire Tread Mounting Apparatus with Conveying Alignment
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Solution Overview
Problem
Existing tire manufacturing apparatuses face challenges in precisely mounting an annular tread on a base tire, often resulting in misalignment, waves, or deformation of the tread edges, which can negatively impact tire performance.
Innovation Solution
A tire manufacturing apparatus featuring a drum with holding means and detecting mechanisms to accurately position and align the annular tread relative to the base tire, utilizing conveyor belts and image pickup means to ensure precise alignment and prevent deformation, allowing for automatic adjustment and secure mounting without waves or edge deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bar members are pulled out with the tread pressing unit holding down the annular tread to the base tire, then the tread can be mounted on the base tire, but friction between the tread and bar members causes defective mounting with waves in the width direction
Solution Approach 1:
A conveying means (conveyor belt) is introduced as an intermediary between the holding means and the base tire. The conveying means transports the tread to the base tire, eliminating direct friction between the bar members and the tread during the mounting process, thus preventing wave defects while maintaining mounting efficiency
2Manufacturing precision
If the edges of the tread are brought into contact with positioning members for alignment, then the tread can be aligned with the base tire, but thin-walled tread edges turn up or deform when contacted
Solution Approach 1:
The conveying means serves as an intermediary that positions the tread without requiring direct contact between the tread edges and positioning members. This eliminates the mechanical stress that causes thin-walled edges to turn up or deform, while still achieving precise alignment through the conveying mechanism
Solution Approach 2:
The mechanical contact-based positioning system is replaced with a conveying-based positioning system. Instead of using positioning members that physically contact and potentially damage the tread edges, the conveying means transports and positions the tread, substituting a gentler mechanical approach that preserves edge integrity
3Manufacturing precision
If the bar members are advanced and retracted individually to align the tread, then the tread can be positioned, but the complex individual control reduces mounting efficiency
Solution Approach 1:
The individual control of multiple bar members is merged into a single conveying means that handles all tread positioning tasks. This consolidation reduces the number of independent control systems needed, simplifying the control architecture and improving mounting efficiency while maintaining positioning precision through the unified conveying mechanism
Data Source
AI summary
A tire manufacturing apparatus capable of precisely mounting an annular tread on a base tire with the width center of the base tire aligned accurately with the width center of the annular tread without causing the tread to wave or the tread edges to turn up or deform. The tire manufacturing apparatus includes a drum to which a base tire is secured, a plurality of holding means extending in the width direction of the annular tread for holding the inner periphery of the annular tread, and a detecting means for detecting the amount of displacement of the annular tread relative to a predetermined position of each of the holding means. The holding means are each provided with a conveying means for moving the position of the annular tread held by the holding means. Each of the conveying means positions the annular tread at the predetermined position of each of the holding means based on the amount of displacement detected by the detecting means.