Tire Cord Loom Woven Length Management via Movement Detection
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Solution Overview
Problem
Existing tire cord looms fail to accurately manage the woven length during the flaw returning operation due to the lack of rotation of the main shaft, leading to discrepancies between the stored woven length and the actual woven length, especially when significant sections of the tire fabric need to be returned.
Innovation Solution
A method and apparatus for a tire cord fabric weaving loom that detects the movement amount of a movement member during the warp feeding operation, calculates the return length, and subtracts it from the stored woven length to maintain accuracy, even when the main shaft is not rotated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the main shaft is not rotated during the flaw returning operation in a tire cord loom, then the weaving speed is maintained and the operation is simplified, but the woven length management becomes inaccurate
Solution Approach 1:
The patent introduces an intermediary measurement mechanism (movement amount detection device) that indirectly measures the woven length by detecting the movement of the movement member during warp feeding operation, rather than directly measuring through main shaft rotation. This intermediary approach allows accurate woven length management even when the main shaft does not rotate.
2Reliability
If the main shaft rotation is stopped during the flaw returning operation, then the fabric quality is maintained by preventing further defects, but the woven length data becomes inconsistent with the actual woven length
Solution Approach 1:
The patent implements a feedback mechanism where the detected movement amount of the movement member is continuously monitored and used to calculate the actual woven length during the flaw returning operation. This feedback allows the control device to maintain accurate woven length data despite the main shaft being stopped, ensuring data consistency with the actual fabric state.
3Productivity
If the warp feeding operation is performed without main shaft rotation, then the flaw returning efficiency is improved, but the correspondence between stored woven length and actual woven length is lost
Solution Approach 1:
The patent replaces the traditional mechanical measurement system (main shaft rotation-based measurement) with a detection-based system that measures the movement amount of the movement member. This substitution allows accurate woven length measurement through electrical/digital detection rather than mechanical rotation, maintaining precision during non-rotational warp feeding operations.
Data Source
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AI summary
In a tire cord fabric weaving loom (10), in a process of a warp feeding operation that is performed by moving a warp row (T) toward a let-off mechanism (11) in a state in which rotation of the loom main shaft (MS) is stopped while the loom is stopped, a movement amount of a movement member that moves as the warp row (T) moves is detected, a return length of the tire cord fabric (W), which is a length of the tire cord fabric (W) that has been returned due to the warp feeding operation, is obtained on the basis of the detected movement amount, and the obtained return length is subtracted from a woven length that is stored in a loom control apparatus (100).