Yarn manufacturing device
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Solution Overview
Problem
Current yarn producing apparatuses for carbon nanotube yarn production lack the capability to produce carbon nanotube yarn at high speeds.
Innovation Solution
A yarn producing apparatus that utilizes a nozzle body with a first nozzle generating a first swirl flow and a second nozzle generating a second swirl flow in orthogonal directions, allowing for the aggregation of carbon nanotube fibers at high speed, with adjustable twist state via compressed air pressure and optional cross-linking agent or coagulant application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional yarn producing apparatus is used, then carbon nanotube yarn can be produced, but the production speed is low
Solution Approach 1:
The patent applies pneumatic principles by using compressed air to generate swirl flows that twist and aggregate carbon nanotube fibers. The first and second nozzles produce controlled vortex flows that rapidly entangle fibers, replacing slow mechanical aggregation processes with fast pneumatic manipulation, thereby significantly increasing production speed while reducing time loss.
Solution Approach 2:
The patent changes the physical state and motion parameters of the carbon nanotube fibers by introducing rotational swirl flows. By controlling the rotation speed, flow rate, and pressure of compressed air through the nozzles, the fibers transition from linear running state to twisted aggregated state, enabling high-speed yarn formation with optimized aggregation time.
2Productivity
If high-speed production is implemented, then productivity increases, but fiber aggregation quality may deteriorate
Solution Approach 1:
The patent segments the aggregation process into two distinct stages using separate nozzles: the first nozzle performs initial twisting of carbon nanotube fibers, and the second nozzle performs secondary twisting in the opposite direction. This segmentation allows each stage to be optimized independently, maintaining high aggregation quality even at high production speeds by providing controlled, progressive fiber entanglement.
Solution Approach 2:
The patent employs periodic alternating twist directions through the first and second nozzles. The fibers are twisted in one direction by the first nozzle, then twisted back in the opposite direction by the second nozzle, creating a false-twist effect. This periodic action prevents fiber damage, ensures uniform aggregation, and maintains yarn quality during high-speed operation.
3Manufacturing precision
If multiple nozzles are added to improve fiber twisting, then device complexity increases
Solution Approach 1:
The patent merges multiple nozzle functions into a single integrated nozzle body structure. The first and second nozzles are combined within one component, with air inlets and outlets strategically positioned to generate both swirl flows simultaneously. This merging reduces the number of separate parts, simplifies assembly, and lowers device complexity while maintaining the capability for precise fiber twist control through coordinated pneumatic action.
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 high-speed production of carbon nanotube yarn with improved quality by effectively twisting and aggregating fibers, with the ability to adjust twist state and enhance fiber bonding through controlled air flows and chemical treatments.
Implementation Method 1
a first nozzle provided in the nozzle body to generate a first swirl flow, with compressed air, in a direction orthogonal to a direction of the carbon nanotube fibers running
Implementation Method 2
a second nozzle provided in the nozzle body to generate a second swirl flow, with compressed air, in a direction orthogonal to the direction of the carbon nanotube fibers running and opposite to the direction of the first swirl flow
Implementation Method 3
the carbon nanotube fibers can be false-twisted and aggregated at high speed
Data Source
AI summary
A yarn producing apparatus that produces carbon nanotube yarn at high speed includes a yarn producing unit that aggregates running carbon nanotube fibers. The yarn producing unit includes a nozzle body, a first nozzle provided in the nozzle body to generate a first swirl flow, with compressed air, in a direction orthogonal to the direction of the carbon nanotube fibers running, and a second nozzle provided in the nozzle body to generate a second swirl flow, with compressed air, in a direction orthogonal to the direction of the carbon nanotube fibers running and opposite to the direction of the first swirl flow. The first nozzle and the second nozzle are provided at positions different in the direction of the carbon nanotube fibers running in the nozzle body.