Interlacing Device Cover Member Gap Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing interlacing devices face challenges in maintaining tight closure of yarn insertion gaps, leading to air entry and reduced interlacing capability, which increases costs and risks yarn breakage due to mirror polishing and ceramic material requirements.
Innovation Solution
An interlacing device with a cover member positioned separately from the yarn running space to minimize air entry through yarn insertion gaps, allowing for improved interlacing capability without the need for mirror polishing or ceramic materials, and enabling easy yarn threading and reduced production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first and second members are brought into close contact to tightly close the yarn running spaces, then the interlacing capability is improved, but yarns may be caught in the gap between the members
Solution Approach 1:
The invention extracts the closure function from the contact between first and second members by introducing a separate closure member that covers the yarn insertion gap. This closure member is positioned separately from the yarn running space, eliminating the need for tight contact between structural members while maintaining effective gap closure.
Solution Approach 2:
The invention introduces a closure member as an intermediary element between the yarn insertion gap and the yarn running space. This closure member effectively seals the gap without requiring direct contact between the first and second members, thereby preventing yarn catchment while maintaining interlacing capability.
2Reliability
If mirror polishing is performed on contact surfaces to eliminate gaps, then the interlacing capability is improved, but the cost increases and yarn breakage probability increases
Solution Approach 1:
The invention extracts the gap-closure function from the contact surfaces of structural members and assigns it to a separate closure member. This eliminates the need for mirror polishing of contact surfaces, reducing manufacturing cost and the risk of yarn breakage while maintaining effective gap sealing.
Solution Approach 2:
The closure member serves as a simple, replaceable component that provides the gap-closure function without requiring expensive mirror polishing. It can be made from conventional materials and processes, significantly reducing manufacturing cost compared to polished mirror surfaces.
3Reliability
If the closure member faces the yarn running space to close the yarn insertion gap, then the gap is sealed, but the yarn comes into contact with the closure member requiring ceramic material
Solution Approach 1:
The invention positions the closure member in a different spatial dimension - specifically, at a position separated from the yarn running space along the direction perpendicular to the gap plane. This allows the closure member to seal the gap from the rear side without the yarn contacting it during operation.
Solution Approach 2:
The invention extracts the closure member from the yarn running space environment and positions it separately. This separation allows the use of conventional materials instead of expensive ceramic materials, as the closure member no longer requires resistance to yarn friction and wear.
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
The solution enhances interlacing capability, reduces costs by eliminating the need for expensive materials and processing, and prevents yarn catchment issues during tension changes.
Implementation Method 1
a fluid ejection orifice from which fluid is ejected to the yarn running space, the interlacing device being configured to interlace a yarn running through the yarn running space by fluid ejected from the fluid ejection orifice
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Interlacing capability is improved by a low-cost structure. An interlacing device includes an interlacing portion 21 including: a yarn running space 25 which is along a yarn running direction; and a fluid ejection orifice 28 from which fluid is ejected to the yarn running space 25. The interlacing device is configured to interlace a yarn Y running through the yarn running space 25 by fluid ejected from the fluid ejection orifice 28. The interlacing portion 21 includes a yarn insertion gap 30 through which the yarn Y is inserted into the yarn running space 25. A cover member 40 configured to cover the yarn insertion gap 30 is disposed at a position separated from the yarn running space 25.