Inverted Tire Sidewall Assembly for Stable Splicing Automation
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Solution Overview
Problem
Current tire assembly processes are complex due to the need for adapting conveying units to the varying surface profiles of sidewalls, leading to unstable processing and poor splice quality.
Innovation Solution
A method for tire construction where sidewalls are placed with their flat side facing down, allowing for uniform cutting and guiding, and are raised along the carcass with their raised side facing the carcass, facilitating automated and precise assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conveying units are adapted to the raised surface profile of the sidewall, then the sidewall can be conveyed and processed, but the device complexity increases and the process becomes unstable
Solution Approach 1:
The patent inverts the conventional approach by placing the sidewall with its flat side facing down on the drum instead of facing up. This inversion eliminates the need to adapt conveying units to the raised surface profile, as the flat side provides a stable, uniform contact surface for conveying and processing operations.
2Shape
If the sidewall is placed with the raised side facing up, then the surface profile is visible on the outside after vulcanization, but the cutting and conveying processes become problematic and splice quality deteriorates
Solution Approach 1:
The patent applies inversion by placing the sidewall with its flat side down and raised side facing the carcass during assembly. After vulcanization, the sidewall is turned inside out, which positions the raised surface profile on the external visible surface of the tire while having maintained the stable flat-side-down orientation during all cutting and conveying operations.
3Ease of manufacture
If conventional sidewall assembly processes are used, then the sidewall can be joined to the carcass, but the process complexity increases and automation becomes difficult
Solution Approach 1:
The patent inverts the conventional assembly sequence by first placing the sidewall flat-side-down on the drum, joining it to the carcass in this inverted orientation, and then turning the sidewall inside out after vulcanization. This approach simplifies the automation process because the flat surface provides stable positioning and contact during automated joining operations, eliminating the complexity of handling raised surface profiles during automation.
Data Source
Figure 1a~1e
Figure 2a~2b
Figure 3a~3c
AI summary
The invention relates to a method and apparatus for constructing a vehicle tire, the method comprising the production of a tire blank comprising a carcass (9), at least two sidewalls (1, 1') and a belt pack (15), wherein the production of the tire blank comprises at least the following steps: i) providing at least two sidewalls (1, 1'), wherein the sidewalls (1, 1') each have a flat and a raised side (3, 3', 5, 5'), ii) placing the at least two sidewalls (1, 1') with the flat side (3, 3') onto at least one drum (7), iii) forming the at least two sidewalls (1, 1') each along a surface of the carcass (9), wherein the raised side (5, 5') of the sidewalls faces towards the carcass (9), and iv) joining the at least two sidewalls (1, 1') with the carcass (9) and the belt pack (15) to form a tire blank, wherein the joining step is performed before or This can happen after working your way up.