Interlacing Device Yarn Regulation Jet Flow Collision
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Solution Overview
Problem
The stability of yarn running in interlacing devices is compromised due to turbulent flow generated when jet flows collide with guides extending in the height direction, leading to unstable yarn regulation and interlacing.
Innovation Solution
The introduction of a second regulatory portion with a stick-shaped bar guide and annular grooves between the interlacing portion and the first regulatory portion, which allows the jet flow to pass through an open space, reducing collisions and maintaining effective yarn regulation even when the first regulatory portion is positioned away from the interlacing portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If guides extending in the height direction are provided close to the interlacing portion to regulate yarn running, then yarn regulation capability is improved, but jet flow collides with the guides generating turbulent flow that destabilizes yarn running
Solution Approach 1:
The regulatory function is divided into two separate portions: the first regulatory portion with guides extending in the height direction for precise yarn regulation, and the second regulatory portion with a stick-shaped bar guide for flow management. This segmentation allows each portion to specialize in one function, resolving the contradiction between regulation precision and flow stability.
Solution Approach 2:
The second regulatory portion acts as an intermediary element between the interlacing portion and the first regulatory portion. It provides a transition zone with an open space that allows jet flow to pass through without colliding with the first regulatory portion, while still maintaining yarn regulation through the bar guide structure.
2Stability of the object's composition
If the first regulatory portion is positioned away from the interlacing portion to avoid jet flow collision, then turbulent flow is reduced, but yarn regulation capability deteriorates
Solution Approach 1:
By segmenting the regulatory function into two portions, the first regulatory portion can be positioned optimally for regulation precision while the second regulatory portion handles the flow management, allowing the first portion to be placed at the optimal position for regulation without being constrained by flow collision issues.
Solution Approach 2:
The second regulatory portion serves as an intermediary that bridges the gap between the interlacing portion and the first regulatory portion, allowing the first regulatory portion to be positioned away from the interlacing portion to avoid flow collision while still maintaining effective yarn regulation through the combined action of both regulatory portions.
3Manufacturing precision
If deep and narrow regulating grooves are used to ensure yarn regulation, then yarn running control is improved, but the structure becomes more complex and susceptible to flow turbulence
Solution Approach 1:
The regulatory function is segmented into two portions with different structural characteristics. The first regulatory portion uses deep and narrow regulating grooves for precise control, while the second regulatory portion uses a simpler stick-shaped bar guide with annular grooves, reducing overall structural complexity while maintaining regulation effectiveness.
Solution Approach 2:
The second regulatory portion with its simpler bar guide structure acts as an intermediary that reduces the complexity burden on the first regulatory portion. It provides additional regulation support without requiring deep and narrow grooves, thereby reducing overall structural complexity while maintaining effective yarn control.
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
This configuration stabilizes yarn running and enhances interlacing capability by minimizing turbulent flow and maintaining effective yarn regulation, especially in multi-type interlacing devices where yarns are lined up in an arrangement direction.
Implementation Method 1
The fluid ejected into the yarn running space of the interlacing portion flows upstream and downstream in the yarn running direction in the yarn running space, and is then discharged from upstream and downstream end portions
Implementation Method 2
regulating grooves extending along the height direction of the interlacing portion are formed between the two guides G1, and the running of the yarns is regulated by these regulating grooves
Implementation Method 3
when the guides extending in the height direction of the interlacing portion exist, the fluid discharged from the yarn running space collides with the guides and turbulent flow is generated
Data Source
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AI summary
The running of yarns is suitably stabilized. An interlacing device 6 configured to interlace yarns Y running in a yarn running direction includes: an interlacing portion 20 which includes a yarn running space 22 where the yarns Y run and is configured to interlace the yarns Y running in the yarn running space by fluid ejected into the yarn running space 22; a first regulatory portion 30 which is provided on at least one of the upstream and the downstream in the yarn running direction of the interlacing portion 20 and is configured to regulate the running of the yarns Y; and a second regulatory portion 40 which is provided between the interlacing portion 20 and the first regulatory portion 30 and is configured to regulate the running of the yarns Y. The first regulatory portion 30 includes a regulating groove 31a which extends in the height direction of the interlacing portion 20. Around the second regulatory portion 40, open spaces 43 and 44 where the fluid ejected from an end portion in the yarn running direction of the yarn running space 22 can pass are provided.