Tire Mold Segment Tilting for Low-Force Tread Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tire molds require a large driving force to detach tire segments from the tread due to the radial outward movement of segments maintaining their posture, leading to high energy consumption and potential tire deformation.
Innovation Solution
A mold design with tilting mechanisms that pivotally move segments radially outward and revert their tilt after opening, reducing the force required for detachment by allowing gradual separation and minimizing undercut resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If segments move radially outward while maintaining their posture, then the tire can be released from the mold, but a large driving force is required to detach the tread design surface from the tread
Solution Approach 1:
The patent applies the dynamics principle by enabling the segments to change their orientation dynamically during the release process. The segments are designed to tilt radially outward from their initial radial position as the tread molding portion opens, transforming from a static radial configuration to a dynamic tilted configuration. This dynamic movement reduces the driving force required for detachment by minimizing undercut resistance during the release process.
2Reliability
If segments move radially outward maintaining posture, then tire release is achieved, but undercut resistance increases requiring large driving force
Solution Approach 1:
The segments transition from a static radial position to a dynamic tilted position during tire release. This dynamic adjustment allows the segments to clear the tread pattern protrusions more effectively, reducing undercut resistance while ensuring complete tire release. The tilting mechanism enables the segments to adapt their orientation to minimize resistance forces during the release process.
3Ease of manufacture
If segments are pulled out radially maintaining posture, then detachment occurs, but adhesion resistance requires large driving force
Solution Approach 1:
The patent implements a dynamic release mechanism where segments tilt radially outward during the opening process. This dynamic movement reduces the adhesion resistance between the tread design surface and the tire tread by minimizing undercut conditions. The tilting action allows for easier separation, improving manufacturing efficiency by reducing the force requirements for segment actuation.
Data Source
AI summary
The provided is a mold for forming a tire and a tire production method that can reduce the driving force required to drive the segment in the initial stage of releasing a tire from the mold. The mold for forming a tire comprises: a circular tread molding portion divided into a plurality of circumferentially aligned segments; and a tilting mechanism that tilts the segments radially outward when the tread molding portion is opened radially outward, and the tilting mechanism reverts the tilt of the segments after the tread molding portion is opened.