Yarn Interlacing Device with Widening Guides for Stable Unwinding
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Solution Overview
Problem
Existing yarn interlacing devices face challenges in maintaining consistent interlacing distances, leading to issues like yarn hooking during unwinding, and increasing pressure or flow of fluid results in decreased yarn quality or increased costs.
Innovation Solution
An interlacing device with a regulatory portion and enlarging portion that widens the yarn in a specific direction, using fluid injection to efficiently interlace the yarn without increasing pressure or flow, guided by widening guides that impart resistance and stabilize the yarn path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pressure or flow amount of fluid is increased to improve interlacing efficiency, then the interlacing effect is enhanced, but the yarn quality decreases and running costs increase
Solution Approach 1:
The patent applies local quality by providing enlarging portions at specific locations within the yarn running space, particularly at both ends of the interlacing portion. These enlarging portions locally increase the space available for yarn expansion, allowing the yarn to be more effectively opened and rotated by fluid injection without requiring increased pressure or flow amount throughout the entire system. This localized structural modification enables efficient interlacing while maintaining yarn quality.
2Productivity
If the pressure or flow amount of fluid is increased to improve interlacing efficiency, then the interlacing effect is enhanced, but running costs increase
Solution Approach 1:
The enlarging portions are strategically positioned at both ends of the interlacing portion to locally enhance yarn opening and rotation. This localized structural enhancement allows the system to achieve better interlacing efficiency with reduced fluid pressure and flow amount, thereby lowering energy consumption and running costs without compromising interlacing effectiveness.
3Productivity
If the yarn is not properly interlaced, then the production process continues, but the yarn may not be properly unwound from the package due to hooking
Solution Approach 1:
The patent implements preliminary action by providing enlarging portions at both ends of the interlacing portion before the actual interlacing occurs. These enlarging portions pre-condition the yarn by creating additional space for expansion and rotation, ensuring that the yarn is properly opened and interlaced before it is wound into the package. This preliminary structural preparation prevents hooking and ensures smooth unwinding during subsequent production processes.
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 device enhances interlacing efficiency, reduces yarn breakage, and stabilizes unwinding by maintaining consistent interlacing points, thus improving yarn quality and reducing operational costs.
Implementation Method 1
an injection hole for injecting fluid to the yarn running space in a second direction intersecting with the first direction, the interlacing portion being configured to interlace the yarn by means of the fluid injected to the yarn running space through the injection hole
Implementation Method 2
an enlarging portion which is provided between the interlacing portion and the regulatory portion in the first direction and which is configured to widen, in the third direction, the yarn running in the yarn running space
Implementation Method 3
a regulatory portion which is provided to be separated from the interlacing portion in the first direction and which is configured to regulate movement of the yarn in a third direction, the third direction intersecting with the second direction when viewed in the first direction
Data Source
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AI summary
An object of the present invention is to increase the efficiency of interlacing a yarn without increasing the pressure or flow amount of fluid. An interlacing device 30 includes an interlacing portion 32, a regulatory guide 33 (i.e., regulatory portion), and a widening guide 50 (i.e., enlarging portion). The interlacing portion 32 includes a yarn running space 43 which allows a yarn Y to run in a predetermined first direction. An injection hole 41a for injecting compressed air (i.e., fluid) to the yarn running space 43 is formed in the interlacing portion 32. The compressed air is injected in a second direction intersecting with the first direction. The regulatory guide 33 is provided to be separated from the interlacing portion 32 in the first direction, and configured to restrict movement of the yarn Y in a third direction. The third direction intersects with the second direction when viewed in the first direction. The widening guide 50 is provided between the interlacing portion 32 and the regulatory guide 33 in the first direction, and configured to widen the yarn Y in the third direction. The yarn Y runs in the yarn running space 43.