3D Kerf-Forming Blade Structure to Prevent Vulcanization Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The deformation of kerf shape during tire vulcanization due to the thinness and fragility of traditional blades, which leads to defects in tire manufacturing and compromised performance, especially in snow and ice conditions.
Innovation Solution
A 3D kerf-forming blade with a wave-shaped frame and a supporting bar structure that connects two frames, enhancing durability by preventing deformation under pressure and heat, and featuring a curved connecting surface to reduce stress concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thickness of the kerf is reduced to improve dry performance, then dry grip and wear performance are improved, but snow and ice performance deteriorates and the kerf becomes more prone to warping or breaking
Solution Approach 1:
The blade is transformed from a traditional flat 2D structure to a 3D structure with wave-shaped frames and bar supports. This dimensional change provides structural rigidity while maintaining the ability to form thin kerfs, resolving the contradiction between kerf thickness and blade durability
Solution Approach 2:
The blade employs a composite structure combining wave-shaped frames with bar supports connected by connecting members. This composite design creates a rigid yet flexible structure that can maintain thin kerf thickness without warping or breaking during tire manufacturing
2Strength
If traditional flat blades are used for kerf formation, then the structure is simple, but the blade deforms under pressure and heat during vulcanization
Solution Approach 1:
The blade is divided into multiple functional components: wave-shaped frames, bar supports, and connecting members. This segmentation allows each component to perform its specific function (frame for kerf formation, bars for support, connectors for joining), improving overall durability while managing structural complexity
Solution Approach 2:
The wave-shaped frame introduces curvature to the traditionally flat blade structure. This curvature provides structural strength and rigidity to resist deformation under vulcanization pressure and heat, while the smooth wave transitions reduce stress concentration points
3Stability of the object's composition
If the blade structure is simplified for ease of manufacture, then production is easier, but the blade cannot maintain its shape during tire vulcanization
Solution Approach 1:
The blade's 3D structure with wave-shaped frames and bar supports is pre-formed during blade manufacturing to establish inherent rigidity. This preliminary structural preparation ensures the blade maintains its shape during vulcanization without requiring complex adjustments or reinforcements during the tire manufacturing process
Data Source
AI summary
An embodiment of the present invention provides a technique for minimizing the deformation of the shape of a kerf by improving the durability of a blade used in forming the kerf during tire vulcanization. A 3D kerf-forming blade according to an embodiment of the present invention is installed in a tire vulcanization mold for forming a kerf and includes a frame formed in a shape of a plate having a wave shape in a cross section horizontal to a thickness direction and a support formed in a shape of a bar having one side connected to the frame and the other side connected to another frame.