Air Spinning Thread Guide Element Gap Management
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Solution Overview
Problem
Air spinning machines face challenges in reliably managing and reintroducing thread ends during interruptions in the spinning process, leading to potential errors and inefficiencies in thread return and reconnection.
Innovation Solution
A thread guidance element with a sewer body and channel design that ensures reliable transition and intake of thread ends from the air pin device to the spinning device, featuring a bayonet lock connection and adaptive end sections for secure alignment and air flow management to reduce hairiness and enhance thread strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thread guide unit with a thread guide channel is arranged downstream of the air-jet spinning device, then the thread can be guided from the spinning device to the winding device, but a thread-guide-free area forms between the inlet opening of the thread guide unit and the outlet opening of the air-jet spinning device, causing unreliable thread return during piecing
Solution Approach 1:
A channel body is introduced as an intermediary component between the air-jet spinning device outlet and the thread guide unit inlet. This channel body has a through-channel that provides a continuous guided path for the thread, eliminating the thread-guide-free area. The channel body includes an end section adapted to the contour of the thread guide unit, ensuring reliable thread transition and preventing deflection into gaps.
Solution Approach 2:
The channel body extends in the spatial dimension between the spinning device and thread guide unit, creating a three-dimensional continuous path. By positioning the first open end at the outlet opening region and the second open end at the inlet opening region, the channel body fills the spatial gap in the thread path, ensuring the thread remains confined and guided throughout its journey.
2Ease of operation
If the end section of the thread guide element is positioned close to the inlet opening, then thread transition is improved, but the risk of thread deflection into the gap increases
Solution Approach 1:
The end section is pre-adapted to the contour of the thread guide unit surrounding the inlet opening. This preliminary adaptation ensures that when the thread emerges from the inlet opening, it is already properly positioned and oriented to enter the through-channel, preventing deflection into the gap before the thread even begins its journey through the channel body.
Solution Approach 2:
The end section has a specific local geometry adapted to the contour of the thread guide unit inlet opening. This local adaptation creates a smooth transition zone that guides the thread into the through-channel without deflection, while the rest of the channel body maintains its through-channel structure. The local quality of the end section differs from the rest of the channel body to address the specific requirement at the inlet interface.
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
Ensures cost-effective and reliable thread return and reconnection, preventing errors and improving operational safety by maintaining thread continuity and reducing hairiness through controlled air flow and adaptive design.
Implementation Method 1
An air flow initiated by a blowing pulse is usually used as the transport medium for bringing the thread end close to an outlet opening of the air-jet spinning device
Implementation Method 2
it is sucked into the air spinning device by a suction air flow directed opposite to the thread take-off direction usual during the spinning process and transported to the vortex chamber
Data Source
Figure 1
Figure 2~2a
Figure 3
AI summary
The invention relates to a thread guiding element and a working station of an air spinning machine with an air spinning device for spinning a thread from a supplied fiber strip and a thread guiding unit downstream of the air spinning device with an inlet opening for receiving the thread exiting from the outlet opening of the air spinning device and a thread guide channel for guiding at least the air-spun thread coming from the air spinning device, as well as a thread guiding element for arrangement between the outlet opening of the air spinning device and the inlet opening of the thread guiding unit.In order to provide a working station of an air-jet spinning machine and a yarn guiding element for use at a working station of a spinning machine, in particular an air-jet spinning machine, which ensures a reliable return of a yarn end to the spinning device, it is provided that the yarn guiding element has a channel body having a through-channel, which has a connecting section designed for connection with the spinning device for arranging a first open end of the through-channel in the area of the exit opening of the spinning device and an end section that can be arranged opposite the inlet opening, wherein the end section is adapted to a contour of the yarn guiding unit surrounding the inlet opening for receiving a yarn exiting from the inlet opening.