Yarn Production System With Controlled Filament Tension
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Solution Overview
Problem
The textile industry faces a need for purpose-specific yarns with varying properties such as high burst strength, tear resistance, and abrasion resistance, which conventional yarn production systems struggle to achieve effectively.
Innovation Solution
A system comprising a filament feed system with driven and press rollers, and a programmable drive system that applies controlled tension to continuous filaments before integrating them into a roving with staple fibers, allowing for precise control over filament tension and positioning to modify yarn properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional yarn production systems are used, then the production process is simple, but the yarn properties cannot be tailored for specific applications
Solution Approach 1:
The production system is divided into separate functional modules: a filament feed system with independent tension control for each filament, and a roving feed system. This segmentation allows each module to be optimized independently, enabling tailored yarn properties without overwhelming system complexity.
Solution Approach 2:
The filament feed system incorporates dynamically adjustable tension control mechanisms that can vary tension levels for different filaments during production. This dynamic control enables the system to produce yarns with specific properties for different applications by adjusting tension parameters in real-time.
2Strength
If multiple continuous filaments are introduced to staple fibres during spinning, then yarn tenacity and elongation are improved, but control over filament positioning becomes difficult
Solution Approach 1:
The filament feed system applies predetermined tension to each continuous filament before the filaments are introduced to the staple fibres during spinning. This preliminary tensioning action ensures proper filament positioning and alignment within the roving, enabling precise control over the final yarn structure while maintaining high tenacity and elongation properties.
3Strength
If filament tension is increased during yarn production, then yarn strength is improved, but filament breakage risk increases
Solution Approach 1:
The system incorporates independent tension control mechanisms that can optimize tension parameters for each specific filament type and application requirement. By precisely adjusting tension parameters within optimal ranges, the system achieves high yarn strength while minimizing filament breakage risk through controlled parameter management rather than simply increasing tension.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the production of yarns with tailored properties by varying filament tension and positioning, resulting in higher tenacity, elongation, abrasion resistance, and reduced pilling, suitable for specific fabric applications like shoe uppers and automotive seats.
Implementation Method 1
a filament feed system with driven and press rollers, and a programmable drive system that applies controlled tension to continuous filaments
Implementation Method 2
The press roller is positioned adjacent the driven roller and is configured to press at least two filaments between the driven roller and press roller
Data Source
AI summary
The invention relates to a system of spinning yarn that comprises a filament feed system configured to vary the tension applied to at least two continuous filaments before the filaments are introduced to a roving and twisted to form a yarn. The invention allows the filaments to be introduced to the roving when under tension, under no tension, or when under slack at set distances from the roving centre line by a specialized two filament guide.