Integrated Yarn Forming Element for Air-Jet Spinning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing thread formation elements for air-pin spinning devices are costly to manufacture due to the need for precise and dense connections between components, and they often result in fiber entanglement at separation points, affecting thread strength and spinning efficiency.
Innovation Solution
A thread formation element with a spinning cone featuring a cone-stump-like segment and a cylindrical sub-segment, allowing for a more material-efficient design with improved positioning and reduced fiber entanglement, along with a passage with varying diameters to enhance fluid flow and thread guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple assembled components are used to form the yarn-forming element, then the structural functionality can be achieved, but the manufacturing complexity and cost increase due to the need for precise and tight connections between components
Solution Approach 1:
The patent combines multiple components (channel body, spinning cone, and support structure) into a single integrated yarn-forming element. The channel body includes an integrated spinning cone portion and support structure, eliminating the need for separate assembled components and reducing manufacturing complexity while maintaining structural functionality.
Solution Approach 2:
The integrated yarn-forming element performs multiple functions within a single component structure. The channel body serves as both the flow channel container and the support structure for the spinning cone, while the integrated design provides both thread formation and structural support functions, reducing the number of parts needed.
2Reliability
If multiple assembled components are used with tight connections, then the structural integrity can be maintained, but fiber entanglement occurs at separation points affecting thread strength
Solution Approach 1:
By merging the channel body, spinning cone, and support structure into a single integrated component, the patent eliminates separation points and seams where fibers could become entangled. The continuous integrated structure ensures smooth fiber flow without interruption at component joints, maintaining thread strength and preventing fiber detachment.
3Ease of manufacture
If a traditional conical spinning cone design is used, then the basic spinning function is achieved, but material usage is inefficient and positioning precision is limited
Solution Approach 1:
The spinning cone is segmented into functional zones: a conical spinning cone portion for fiber formation, a cylindrical portion for precise positioning, and an integrated support structure. This segmentation allows each zone to be optimized for its specific function while being manufactured as one piece, improving both material efficiency and positioning precision.
Solution Approach 2:
Different portions of the yarn-forming element have different geometric properties optimized for local functions. The conical section provides effective spinning, the cylindrical section provides precise positioning, and the support structure provides mechanical stability. This local optimization of geometry improves both material usage efficiency and positioning precision.
Data Source
Figure 1~2
AI summary
The invention relates to a yarn forming element for an air-jet spinning nozzle comprising a spinning cone with a conical tip, a first end face with an inlet opening, a channel body, and a second end face with an outlet opening, wherein the channel body and the spinning cone are connected to each other, and a passage through which the channel body and the spinning cone pass to connect the inlet opening with the outlet opening. To provide a yarn forming element that is particularly cost-effective and easy to manufacture, the spinning cone has a truncated cone-shaped segment extending towards the second end face with an increasing distance between its inner surface and an outer surface of the channel body radially limiting the passage, thus forming a gap.