Tire Carcass Transfer Device Sidewall Application
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Solution Overview
Problem
The existing methods for producing tire carcasses require multiple transfers and a high machinery setup, making the process inefficient and costly, especially when manufacturing tires with different configurations or ply turnup lengths.
Innovation Solution
A method and system where the carcass is transferred on a single device from the carcass station to the shaping machine with sidewalls applied en route, using a system with a sidewall station and drums that move parallel to the transfer path, allowing continuous processing without the need for multiple device transfers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple transfer devices are used for carcass transfer and sidewall application, then the carcass can be processed through different stations, but the device complexity and machinery outlay increase significantly
Solution Approach 1:
The patent combines the carcass transfer function and sidewall application function into a single integrated transfer device. The transfer device includes a transfer drum that carries the carcass and a sidewall application mechanism that applies sidewalls to the carcass during transfer, eliminating the need for separate transfer devices at different stations.
Solution Approach 2:
The single transfer device performs multiple functions: it transfers the carcass from the buildup station to the shaping station, applies sidewalls to the carcass during transfer, and maintains carcass positioning throughout the process. This multi-functional design replaces multiple specialized devices.
2Ease of operation
If multiple transfer steps are used for carcass processing, then the carcass can be moved between different processing stations, but the production time and process efficiency decrease
Solution Approach 1:
The sidewalls are applied continuously to the carcass during the transfer process itself, rather than requiring separate application steps. The transfer device moves the carcass through the sidewall application zone while simultaneously applying the sidewalls, making the transfer time productive processing time.
Solution Approach 2:
The sidewalls are prepared in advance on the transfer device before the carcass arrives. The sidewall application mechanism is pre-positioned and ready to apply sidewalls as the carcass passes through, eliminating waiting time and sequential processing delays.
3Device complexity
If a single transfer device is used for both carcass transfer and sidewall application, then the device complexity is reduced, but the adaptability to produce different tire configurations may be limited
Solution Approach 1:
The transfer device incorporates adjustable and movable components that can be reconfigured for different tire specifications. The transfer drum speed, sidewall application positioning, and shaping station parameters can be dynamically adjusted to accommodate various tire sizes, ply turnup lengths, and carcass configurations.
Solution Approach 2:
The device allows modification of operational parameters such as transfer speed, sidewall application timing and position, and shaping parameters to produce different tire configurations. This parameter adjustability maintains versatility while using a single integrated device.
Data Source
AI summary
A method for making a carcass for a pneumatic vehicle tire includes building up a carcass free from sidewalls with an inner liner, a single-ply or multi-ply carcass inlay and bead cores, at a carcass station on a carcass building drum, while creating ply turnups. The carcass produced without sidewalls is transferred to a transfer device. The carcass is kept on the transfer device while applying sidewalls to the carcass. The carcass is retained on the transfer device while transferring the carcass provided with the sidewalls to a shaping machine where the carcass is shaped into a toroidal shape.