Open-End Spinning Dirt Disposal Intermediate Extraction Unit
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Solution Overview
Problem
Existing open-end spinning machines face challenges in reliable dirt disposal, especially with longer machines or an increasing number of work stations, as dirt particles can accumulate and be sucked back into the spinning process, disrupting operations.
Innovation Solution
An intermediate pneumatic dirt suction unit is installed between work stations to shorten dirt transport distances and enhance removal efficiency, designed to be interchangeable with existing work stations and connected to the machine's vacuum supply, allowing for easy retrofitting without altering the machine's construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single pneumatic dirt extraction unit is used at the machine end frames, then the machine structure remains simple, but dirt particles accumulate over long transport distances disrupting spinning operations
Solution Approach 1:
The dirt extraction system is segmented into multiple independent pneumatic extraction units distributed along the machine length. Each unit handles a localized section, preventing dirt accumulation over long distances while maintaining overall system reliability without requiring complete system redesign
2Productivity
If the machine length is increased to accommodate more work stations, then productivity increases, but dirt transport distance increases causing dirt accumulation and operational disruption
Solution Approach 1:
The extraction system is divided into multiple sections along the machine length, with each pneumatic extraction unit serving a specific workstation area. This segmentation allows the machine to be extended for higher productivity while each segment independently manages dirt removal, preventing accumulation issues
Solution Approach 2:
Instead of extending a single linear extraction path, the solution adds extraction units distributed along the longitudinal dimension of the machine. This multi-point extraction approach handles increased dirt volume from additional workstations without proportionally increasing transport distances
3Reliability
If pneumatic dirt extraction units are added along the machine length, then dirt removal efficiency improves, but installation and retrofitting become more complex
Solution Approach 1:
The system uses modular, independently installable pneumatic extraction units that can be added to existing machines without requiring complete system disassembly or complex integration, facilitating easier manufacturing and retrofitting
Solution Approach 2:
Each pneumatic extraction unit operates independently with its own vacuum source and extraction path, allowing units to be installed and configured separately without interfering with other units or requiring complex centralized coordination, simplifying the manufacturing and installation process
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 solution ensures safe and quick removal of dirt particles, preventing accumulation and disruption, while maintaining operational efficiency and allowing for seamless integration with existing machinery.
Implementation Method 1
pneumatic dirt extraction units configured to extract dirt particles from the dirt disposal unit
Data Source
Figure 1
AI summary
The present invention relates to an open-end spinning machine (1) with a plurality of work stations (20) arranged side by side, each with an open-end spinning device (2), and each of which has a fiber sliver dissipation device (4) with a dirt discharge opening (10). A dirt disposal device (11) extending in the longitudinal direction of the machine is arranged below the dirt discharge openings (10), and the dirt disposal device (11) is configured to convey dirt particles to pneumatic dirt extraction devices in the area of machine end frames. According to the invention, at least one intermediate unit (17) is arranged between the work stations (20), which comprises a further pneumatic dirt extraction device (18) configured to extract dirt particles from the dirt disposal device (11).