Tire Belt Layer Formation Using Single Supply Line
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Solution Overview
Problem
Existing tire manufacturing methods require separate supply lines for strip materials with opposite reinforcing cord inclination directions, leading to equipment complexity and increased space and cost requirements.
Innovation Solution
A tire manufacturing method and device that uses a single strip material supply line to sequentially arrange and bond strip materials with obliquely oriented reinforcing cords, allowing adjacent layers to have opposite inclination directions, eliminating the need for dual supply lines by utilizing a holding machine to turn the strip material upside down for alternating layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate supply lines are provided for strip materials with opposite reinforcing cord inclination directions, then the belt multilayer structure can be constructed with proper layer arrangement, but the equipment becomes large and complex
Solution Approach 1:
A single supply line is designed to supply strip materials for both upward and downward inclination directions by incorporating a flipping mechanism. The supply line can switch between supplying strip materials in the original orientation and flipped orientation, making it universal for both types of belt layers, thereby eliminating the need for separate supply lines and reducing equipment complexity
Solution Approach 2:
Instead of providing separate supply lines for upward and downward inclination strip materials, the invention inverts the approach by using one supply line that can flip the strip material orientation. The flipping mechanism allows the same supply line to deliver strip materials in both orientations by physically inverting the strip material between supply and bonding operations
2Reliability
If separate supply lines are provided for strip materials with opposite reinforcing cord inclination directions, then the belt multilayer structure can be constructed with proper layer arrangement, but the installation space increases
Solution Approach 1:
The single supply line with flipping capability serves multiple functions: supplying strip materials for upward inclination layers, supplying strip materials for downward inclination layers, and transitioning between these functions. This multi-functionality consolidates what would require separate supply lines into one unit, significantly reducing the installation space required
Solution Approach 2:
The invention merges the functionality of two separate supply lines (one for upward inclination strip materials and one for downward inclination strip materials) into a single supply line with a flipping mechanism. This consolidation combines the space requirements of two independent systems into one integrated system, reducing the overall installation space
3Reliability
If separate supply lines are provided for strip materials with opposite reinforcing cord inclination directions, then the belt multilayer structure can be constructed with proper layer arrangement, but the equipment cost increases
Solution Approach 1:
By designing a single supply line with flipping capability, the invention creates a universal system that replaces two specialized supply lines. This universality reduces equipment cost by eliminating redundant components and reducing the overall system complexity while maintaining the ability to construct belt multilayer structures with proper layer arrangement
Data Source
AI summary
Provided are a tire manufacturing method and a tire forming device. One band-like strip material is sequentially supplied through one strip material supply line. By repeating a step of bonding the strip material placed in an arrangement unit by a holding machine to a forming surface on the outer circumferential side of the rigid core using a bonding mechanism, a belt layer in which the strip materials are arranged in the circumferential direction with reinforcing cords inclined at a predetermined inclination angle with respect to the circumferential direction of the rigid core. The strip material held by the holding machine is turned upside down and placed on the arrangement unit to construct a belt multilayer structure in which the inclination directions of the reinforcing cords of vertically adjacent belt layers are opposite to each other, thereby forming a green tire including the belt multilayer structure.