Vehicle Tire Carcass Transfer and External Drive Cambering
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Solution Overview
Problem
Conventional vehicle tire manufacturing processes have complex structures and movements on the crowning drum, which complicates the tire production process without ensuring manufacturing quality.
Innovation Solution
A method that involves completing a tire carcass with layer turn-up on a carcass drum, transferring it to a crowning drum with pre-positioned sidewalls, and using an external drive to turn up the sidewalls with a rotatable turning-up means, reducing the complexity of the crowning drum and maintaining manufacturing quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the tire carcass is combined with belt/tread package on a separate crowning drum with turn-up mechanism, then the sidewalls and ply ends are worked up together, but the crowning drum structure becomes relatively complex
Solution Approach 1:
The invention divides the tire manufacturing process into two separate functional units: a carcass building drum for forming the tire carcass and a separate crowning drum for combining the carcass with belt/tread package. This segmentation allows each drum to be optimized for its specific function, reducing the overall structural complexity of the system while maintaining manufacturing efficiency.
Solution Approach 2:
The turn-up mechanism is extracted from the crowning drum and integrated into the carcass building drum. This extraction eliminates the need for complex turn-up mechanisms on the crowning drum, simplifying its structure while ensuring that sidewalls and ply ends are properly formed before the carcass is transferred to the crowning drum.
2Ease of operation
If the drive for handling mechanism comes from the drum shaft, then the mechanism is integrated, but the crowning drum structure becomes relatively complex
Solution Approach 1:
The drive mechanism for the handling system is extracted from the drum shaft and repositioned to an external location. This extraction simplifies the drum shaft structure by removing complex internal drive components, while the external drive maintains full control over the handling mechanism operations.
Solution Approach 2:
An external drive system acts as an intermediary between the control system and the handling mechanism on the crowning drum. This intermediary approach allows for simplified drum shaft design while maintaining integrated control over carcass handling, positioning, and processing operations.
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a method for producing a vehicle tyre, comprising the following steps: • completing a tyre carcass (9, 10) having a ply fold-over (6) on a carcass drum, • removing the tyre carcass (9) having a ply fold-over (6) from the carcass drum by means of a carcass transfer unit (12), • moving the carcass transfer unit (12) having the tyre carcass (10) to a sidewall station for arranging sidewalls (5, 11) on the tyre beads (13) of the tyre carcass (10) or moving the carcass transfer unit (12) having the tyre carcass (9) to a cambering drum (19) on which two sidewalls (5, 11) have been positioned in the region of the core clamping segments (2) in advance, • transferring the tyre carcass (9, 10) from the carcass transfer unit (12) to the cambering drum (19), • cambering the tyre carcass (9, 10) having the sidewalls (5, 11) connected in the region of the tyre beads (13), wherein the tyre carcass (9, 10) is joined to the belt/tread package (18), wherein the turn-up means (3) is moved by means of an external drive (16), which is arranged outside of the drum shaft (4) of the cambering drum (19).