Pivoting Spinneret Section for Air-Jet Cleaning Access
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Solution Overview
Problem
Existing spinnerets for air-jet spinning machines face challenges in effectively cleaning the yarn-forming element and turbulence chamber, particularly with stubborn fiber residues and sticky substances like honeydew, which are not adequately removed by suction alone, requiring manual intervention and complex opening mechanisms.
Innovation Solution
The spinneret design includes a first section that can be pivoted about a pivot axis from a closed to an open position, allowing direct access for cleaning and utilizing a suction channel connected to a vacuum supply, along with a guide for linear movement of the yarn-forming element, enabling efficient removal of impurities and automatic return to the spinning position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the spinneret housing is designed in multiple sections to allow opening for cleaning, then accessibility for cleaning is improved, but device complexity increases
Solution Approach 1:
The spinneret housing is divided into a first housing section and a second housing section that can be moved relative to each other. The yarn forming element is segmented into a movable part and a stationary part. This segmentation allows the first housing section to be opened for cleaning while maintaining a relatively simple overall structure.
Solution Approach 2:
The yarn forming element is made movable relative to the second housing section via a guide mechanism, and the first housing section is made movable relative to the second housing section. This dynamic design allows easy access for cleaning without requiring a completely complex disassemblable structure.
2Ease of operation
If suction is used to clean the vortex chamber, then cleaning operation is simplified, but cleaning effectiveness deteriorates due to inability to remove stubborn residues
Solution Approach 1:
The yarn forming element is divided into a movable part and a stationary part, allowing the movable part to be pulled out to expose deposited fibers at the inlet. This segmentation enables manual removal of stubborn residues that suction cannot remove, while suction continues to handle loose particles.
Solution Approach 2:
The movable inlet region acts as an intermediary between the suction system and manual cleaning. It can be positioned to expose deposits for manual removal while maintaining connection to the suction channel for simultaneous or sequential suction cleaning.
3Ease of operation
If the yarn forming element is made movable to expose inlet for cleaning, then accessibility is improved, but device complexity increases
Solution Approach 1:
The guide mechanism provides a simple linear path for the movable part of the yarn forming element, allowing it to move in and out without requiring complex actuators or mechanisms. The movement is constrained to a single degree of freedom, simplifying the overall device complexity.
Solution Approach 2:
The yarn forming element's movable part is designed to slide linearly within the guide of the second housing section. This simple dynamic mechanism allows the inlet to be exposed for cleaning while maintaining a relatively simple structural design.
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 design facilitates easy and thorough cleaning of the yarn-forming element and turbulence chamber, ensuring uninterrupted spinning operations by allowing manual removal of residues and utilizing a force accumulator or magnet to maintain the closed position, enhancing operational efficiency and reducing manual intervention.
Implementation Method 1
a suction channel (25) which, during operation of the spinneret, is connected to a vacuum supply, so that air can be extracted from the vortex chamber (4) via the suction channel
Implementation Method 2
utilizing a force accumulator or magnet to maintain the closed position
Implementation Method 3
utilizing a force accumulator or magnet to maintain the closed position
Data Source
Figure 1
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AI summary
The invention relates to a spinneret (1) for an air-jet spinning machine, wherein the spinneret (1) has an internal vortex chamber (4) which is at least partially bounded externally by a first spinneret section (5) and a second spinneret section (6), wherein the first spinneret section (5) comprises an inlet opening (7) for the fiber assembly (3) and several air nozzles (8) through which air can be introduced into the vortex chamber (4), wherein the spinneret (1) has a yarn forming element (9) extending at least partially into the vortex chamber (4) with an inlet (10) for the fiber assembly (3) and an outlet (11) for the yarn (2) produced within the vortex chamber (4), and wherein the yarn forming element (9) is held by the second spinneret section (6) by means of a guide (12) and is movable relative to the second spinneret section (6) between a spinning position and a cleaning position.According to the invention, the first spinneret section (5) is attached to the second spinneret section (6) via at least one pivot axis (13) and can be pivoted about the pivot axis (13) from a closed position to an open position, wherein the inlet (10) of the yarn forming element (9) is accessible from the outside to an operator only in the open position, regardless of the position of the yarn forming element (9).