Thread Guide Element Noise Reduction in Air Treatment Housing
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Solution Overview
Problem
Existing apparatuses for treating threads with compressed air suffer from significant noise transmission through the housing openings of the thread inlet and outlet, causing stress on operating personnel due to the direct passage of airborne noise.
Innovation Solution
The apparatus features thread inlets and outlets formed by two consecutive, separate opening slots with a thread guide element between them, which breaks and reflects sound waves, preventing direct sound transmission while allowing thread guidance without hindrance. Additionally, the housing is designed with insulation and a sealing groove to further reduce noise emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the thread inlet and outlet are formed as single openings in the housing, then the thread path is simple and direct, but noise transmits directly from the turbulence device to the surroundings
Solution Approach 1:
The thread inlet and outlet openings are divided into two separate opening slots instead of a single opening. This segmentation creates multiple sound transmission paths that are interrupted by the thread guide element, effectively breaking the direct noise transmission path while maintaining thread guidance functionality
Solution Approach 2:
A thread guide element is introduced as an intermediary component between the two opening slots. This element serves dual purposes: guiding the thread through the housing and blocking the direct path of sound waves from the turbulence device to the surroundings, thereby reducing noise transmission without hindering thread processing
2Object-affected harmful factors
If the opening slots are positioned directly in the housing wall, then the housing structure is simple, but sound waves can propagate directly through the openings
Solution Approach 1:
The thread guide element extends into the housing interior from the housing wall, creating a three-dimensional arrangement that blocks sound waves in the direct path while allowing thread passage. This dimensional extension transforms the simple wall opening into a noise-blocking structure that maintains operational ease
3Object-affected harmful factors
If the opening slots have large cross-sections for easy thread passage, then thread guidance is facilitated, but more noise can escape through the larger openings
Solution Approach 1:
By dividing the opening into two separate slots, the total open area is reduced compared to a single large opening, thereby decreasing noise emission. The segmentation allows the thread to pass through the gap created by the thread guide element while limiting the space available for sound wave propagation
4Object-affected harmful factors
If the housing completely encloses the turbulence device, then noise insulation is maximized, but thread inlet and outlet openings create direct noise transmission paths
Solution Approach 1:
The thread guide element acts as an intermediary that blocks sound waves within the enclosed housing space. By positioning this element between the turbulence device and the opening slots, it prevents direct sound transmission while maintaining the enclosed structure's noise insulation effectiveness
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 effectively reduces airborne noise transmission to the surroundings, providing a quieter operating environment for personnel and maintaining efficient thread guidance and processing.
Implementation Method 1
the waves of airborne sound caused in the interior by the turbulence device are broken and in part reflected at the thread inlet and/or the thread outlet
Implementation Method 2
Direct passage of the waves of airborne sound is prevented by a thread guide element disposed between the separate opening slots
Implementation Method 3
The known apparatus has a housing to insulate noise, in which housing the turbulence device is held encapsulated with regard to the surroundings
Data Source
AI summary
A device treats a thread with compressed air. To this end, the device has an intermingling device which is encapsulated in a housing with respect to the environment. For thread guidance, the housing has a thread inlet and an opposite thread outlet. In order to prevent direct transmission of noise through the thread inlet and the thread outlet, the thread inlet and/or the thread outlet is formed in each case by two separate opening slots in quick succession and a thread guiding member between the opening slots.