Open-End Spinning Device with Bidirectional Roller for Z/S-Yarn Quality
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Solution Overview
Problem
Existing open-end spinning devices face challenges in producing high-quality Z- and S-yarns due to the need for fiber guide channel adapters that alter the fiber path, leading to reduced yarn quality when switching between yarn types.
Innovation Solution
An open-end spinning device with an opening roller that can rotate in both directions and dedicated Z- and S-yarn fiber guide channels, allowing for consistent fiber direction alignment without altering the channel's straight course, and exchangeable cover elements with integrated fiber guide channels to adapt to the desired yarn type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fiber guide channel adapter is used to produce an S-yarn with a straight fiber guide channel, then the fiber guide channel course must be changed, but this results in a non-straight course and deterioration in yarn quality
Solution Approach 1:
The fiber guide channel is divided into two separate versions: a Z-yarn fiber guide channel and an S-yarn fiber guide channel. Each channel is optimized for its specific yarn type with appropriate straight course geometry, eliminating the need for adapters that would compromise yarn quality. The segments can be exchanged based on production requirements.
Solution Approach 2:
The fiber guide channel is designed as a changeable component that can be exchanged between Z-yarn and S-yarn configurations. This dynamic adaptation allows the system to switch between different yarn types while maintaining optimal fiber guide geometry for each type, preventing quality deterioration.
2Adaptability or versatility
If the opening roller is driven in one direction only, then the fiber transport direction is fixed, but this limits the ability to produce both Z-yarn and S-yarn with consistent quality
Solution Approach 1:
The opening roller is designed with bidirectional drive capability, allowing it to rotate in left-hand or right-hand directions depending on the yarn type being produced. This dynamic rotation direction control enables consistent fiber feeding in the direction of rotation for both Z-yarn and S-yarn production, maintaining reliability across different yarn types.
Solution Approach 2:
The opening roller serves multiple functions by being capable of rotating in both directions. This multi-functionality allows a single opening roller to effectively feed fibers for both Z-yarn and S-yarn production, eliminating the need for separate rollers for each yarn type while maintaining consistent fiber feeding quality.
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
Enables the production of high-quality Z- and S-yarns with consistent quality by aligning fibers optimally, requiring only a change in rotation direction and guide channel replacement, reducing conversion complexity and maintaining yarn quality.
Implementation Method 1
a vacuum-loaded spinning rotor housing
Data Source
Figure 1a
Figure 1b
Figure 2a~2b
AI summary
The invention relates to an open-end spinning device for the selective production of a Z- and S-yarn, with a spinning rotor rotatably mounted in a vacuum-loaded spinning rotor housing and a drive unit that drives the spinning rotor selectively in a left- and right-hand rotation.In order to provide an open-end spinning device for the optional production of a Z-yarn and S-yarn, which enables a consistently high yarn quality of both yarn types, an opening roller which can be driven to rotate left and right in accordance with the direction of rotation of the spinning rotor, as well as a Z-yarn fiber guide channel and an S-yarn fiber guide channel, which optionally connect the opening roller to the spinning rotor in a fiber-guiding manner and which each have a fiber outlet opening assigned to the spinning rotor and a fiber inlet opening assigned to the opening roller, wherein the fiber inlet opening and fiber outlet opening of the Z-yarn fiber guide channel are adjacent to the spinning rotor and the opening roller on the left and of the S-yarn fiber guide channel on the right.