Tire Material Supply Apparatus Length Uniformity Control
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Solution Overview
Problem
Existing tire material supply apparatuses face challenges in accurately compensating for length differences between preassemblies, particularly when attached to opposite sides of a tire, affecting kinetic and uniformity performance, and require complex positional adjustments during winding.
Innovation Solution
An apparatus and method that includes a feeder, conveyer, cutter, position detector, and position adjuster to ensure identical downstream ends of two continuous material members along the conveyance direction, with a vertical adjuster and swing mechanism for precise positioning and vertical alignment with a drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a compensation mechanism is used to adjust length differences between preassemblies, then some length compensation is achieved, but the compensation is insufficient when length differences are relatively large
Solution Approach 1:
The system performs preliminary measurement of the actual lengths of both continuous material members before cutting, and pre-calculates the required conveyance distances for each member to achieve identical downstream end positions. This preliminary action enables precise compensation for length differences before the cutting operation occurs.
Solution Approach 2:
The system uses position detectors to continuously monitor the positions of the continuous material members during conveyance, and the controller adjusts the conveyance distances based on feedback from these detectors. This closed-loop feedback mechanism ensures that the downstream ends of both material members reach identical positions despite initial length differences.
2Manufacturing precision
If shift mechanism and swing mechanism are used to adjust positional relation between conveyers and drum, then positional adjustment is achieved, but the adjustment process becomes complicated
Solution Approach 1:
The system replaces complex mechanical shift and swing mechanisms with a simplified conveyance control system. Instead of mechanically adjusting the positions of entire conveyers, the system maintains fixed conveyer positions and uses a controller to precisely control the conveyance distances of individual material members based on their measured lengths, achieving the same positional accuracy with simpler mechanics.
Solution Approach 2:
The system changes the control parameter from mechanical position adjustment to conveyance distance control. By controlling the distance each material member is conveyed rather than adjusting the physical position of conveyers, the system achieves precise positional relations with a simpler mechanism.
Data Source
AI summary
A supply apparatus of tire material members includes a feeder that feeds out first and second continuous material members from which first and second material member is to be cut out, respectively, a conveyer that conveys the first and second continuous material members, a cutter that cuts the first and second continuous material members at a cutting position extending perpendicularly to a conveyance direction every time when the first and second continuous material members are conveyed by a predetermined length, a position detector that detects positions of the first and second continuous material members during a conveyance by the predetermined length from the cutting position, and a position adjuster that, during the conveyance by the predetermined length from the cutting position, adjusts conveyance distances of the first and second continuous material members based on the detected positions of the first and second continuous material members.