Adjustable Tire Building Drum for Fast Tire Size Changeover
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Solution Overview
Problem
The replacement of tire size for a mechanical building drum is time-consuming and laborious, leading to significant losses and inefficiencies in tire production.
Innovation Solution
A tire production method and apparatus that utilizes a main shaft with a turn-up rod assembly, shim plate assembly, lock block assembly, and middle drum assembly, allowing for adjustable diameters to accommodate different tire sizes without replacing the side drum, enabling efficient processing of multiple tire sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mechanical building drum is used for tire production, then tire building efficiency is improved, but the complexity of the drum structure increases and time is lost when replacing side drums for different tire sizes
Solution Approach 1:
The patent applies the dynamics principle by making the side drum structure adjustable rather than fixed. The side drum includes expandable and contractible components that can dynamically change diameter to accommodate different tire sizes, eliminating the need for physical replacement of the side drum while maintaining high tire building efficiency
Solution Approach 2:
The patent implements parameter changes by modifying the diameter parameter of the side drum through mechanical expansion and contraction mechanisms. The side drum can be adjusted to different diameter parameters corresponding to different tire sizes, allowing continuous operation without replacement and reducing time loss
2Productivity
If a mechanical building drum is used for tire production, then tire building efficiency is improved, but the structure of the building drum becomes complex
Solution Approach 1:
The patent applies segmentation by dividing the side drum into multiple modular components including expandable segments, contraction mechanisms, and adjustable elements. This modular segmentation allows the complex functionality to be achieved through coordinated simple components rather than a monolithic complex structure
Solution Approach 2:
The patent uses dynamics to transform a static complex structure into a dynamic adaptable structure. The side drum components can move, expand, and contract as needed, allowing the same structure to serve multiple tire size requirements without requiring separate complex structures for each size
Data Source
AI summary
The tire production device includes a main shaft and a turn-up rod assembly, a shim plate assembly, a lock block assembly and a middle drum assembly. The tire production method includes: adjusting initial diameters of the shim plate assembly, the lock block assembly and middle drum assembly, and adhering a sizing material; installing a tire rim outside the lock block assembly, increasing the diameter of the lock block assembly, and making it abut against and lock the tire rim; adjusting the diameter of the shim plate assembly and the middle drum assembly, so that outer surfaces are flush; turning over the turn-up rod assembly to adhere the sizing material to a tire side surface, and making the turn-up rod assembly move reversely and reset; decreasing the diameters of the shim plate assembly, the lock block assembly and the middle drum assembly and removing the tire from the main shaft.