Green Tire Removal Device Positioning for Manufacturing Time Reduction
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Solution Overview
Problem
Existing methods for manufacturing green tires using a building drum and transfer device are time-consuming as the removal device's projecting elements are placed around the tire only after completion, leading to prolonged manufacturing times.
Innovation Solution
The method involves placing the projecting elements of the removal device around the building drum at an earlier stage, allowing them to be positioned before the final manufacturing steps are completed, and using a transfer ring with radially movable retaining elements to securely engage the tire components, thereby reducing the overall manufacturing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the projecting elements of the removal device are placed around the building drum only after the green tyre is completely finished, then the removal operation can be performed safely, but the manufacturing time is prolonged
Solution Approach 1:
The removal device is positioned around the building drum in advance, before the green tyre manufacturing is completed. The projecting elements are placed in position during the manufacturing process itself, rather than waiting until completion. This preliminary positioning allows the removal operation to be ready and immediate upon completion, eliminating waiting time while maintaining safe removal capabilities.
2Productivity
If the transfer device is moved away from the building drum before the green tyre is completely finished, then the manufacturing process can continue uninterrupted, but the removal device cannot be positioned around the tyre in time
Solution Approach 1:
The removal device is positioned around the building drum before the transfer device moves away and before the green tyre manufacturing is completed. This preliminary action ensures that when the manufacturing process continues uninterrupted and the tyre is completed, the removal device is already in position and can immediately engage the tyre for removal, eliminating any time loss.
3Loss of time
If the projecting elements are placed around the green tyre at an earlier stage, then manufacturing time is reduced, but the tyre may collapse before removal
Solution Approach 1:
The projecting elements are placed in position around the building drum in advance, but they only engage with the green tyre after the manufacturing is completely finished. The removal device is ready and positioned early, but the actual engagement with the tyre structure occurs only when the tyre is complete and structurally stable, preventing collapse while minimizing time loss.
Data Source
Figure 1A
Figure 1B
Figure 2A~2D
AI summary
Method for manufacturing a green tyre using a building drum (1) and a transfer device (2). In the method tyre components (13) are arranged on a building drum. In one step of the method the transfer device is placed around the building drum. The method further comprises a step during which a last manufacturing process for a green tyre is carried out on the building drum, and a removal step during which a removal device (5) removes the green tyre from the building, wherein the removal device is provided with projecting elements (6, 7, 8) that can be placed up to a distance from and around the outer circumference of the green tyre and which projecting elements can be placed such so as to engage the outer side of the green tyre. The removal step further comprises the provision of placing the projecting elements up to a distance from and around the outer circumference of the building drum, during the steps in which the transfer device is placed around the building drum.