Yarn Splicing Nozzle Flat Wall Air Injection
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Solution Overview
Problem
Existing yarn splicing devices often produce spliced points with insufficient strength, particularly when handling a variety of yarn types, due to inadequate entanglement mechanisms.
Innovation Solution
A yarn splicing nozzle with a configuration that includes upstream and downstream splicing chambers with inclined flat walls and strategically positioned injection holes for compressed air, ensuring effective entanglement and alignment of yarns, along with a winding device that controls compressed air injection to manage different yarn types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If compressed air is injected directly onto a planar flat wall in the splicing chamber, then the device structure is simple, but the entanglement effectiveness of yarns is insufficient leading to weak spliced points
Solution Approach 1:
The splicing chamber is divided into multiple segments (first splicing chamber and second splicing chamber) with multiple injection holes in each, allowing compressed air to be injected from different positions and angles to effectively entangle yarns from multiple directions, thereby improving spliced point strength without requiring excessive complexity in any single location
Solution Approach 2:
Different regions of the splicing chamber are equipped with injection holes having different orientations and positions. The first and second injection holes in each chamber are arranged to inject compressed air at different angles toward the flat wall, creating localized zones of enhanced entanglement effectiveness where yarns are swept and bounced more effectively
2Adaptability or versatility
If a single injection hole is used in the splicing chamber, then the device is simple to operate, but it cannot effectively handle a variety of yarn types with different entanglement requirements
Solution Approach 1:
The nozzle is designed with multiple injection holes (first and second injection holes) in each splicing chamber, where each hole can function independently or in combination. This multi-functional configuration allows the same nozzle structure to effectively handle various yarn types by providing multiple air injection patterns, thereby improving adaptability while maintaining operational simplicity through unified control
3Strength
If compressed air injection angle is not optimized, then the nozzle structure is simple, but yarn entanglement effectiveness is reduced
Solution Approach 1:
The injection holes are configured with asymmetric orientations relative to the flat wall of the splicing chamber. The first and second injection holes are positioned and angled differently to create asymmetric air flow patterns that effectively sweep and bounce yarns against the flat wall from multiple directions, enhancing entanglement effectiveness without requiring complex adjustable mechanisms
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
The solution ensures a sufficient strength of the spliced point across various yarn types by effectively entangling yarns through controlled air flow, preventing yarn escape and maintaining consistent entanglement quality.
Implementation Method 1
compressed air is injected from the first upstream injection hole and the first downstream injection hole to entangle the two yarns more effectively to form a spliced point
Data Source
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AI summary
A yarn splicing nozzle (100) includes a nozzle body (110), an upstream splicing chamber (113U) formed in the nozzle body (110) and having a planar flat wall (114U) at a part of an inner wall, a downstream splicing chamber (113D) formed in the nozzle body (110), communicatively connected to the upstream splicing chamber (113U), and having a planar flat wall (114D) at a part of an inner wall, a first upstream injection hole (HU1) and a second upstream injection hole (HU2) formed in the nozzle body (110) and configured to inject compressed air toward the upstream splicing chamber (113U), and a first downstream injection hole (HD1) and a second downstream injection hole (HD2) formed in the nozzle body (110) and configured to inject compressed air toward the downstream splicing chamber (113D). The first upstream injection hole (HU1) injects compressed air along the flat wall (114U) of the upstream splicing chamber (113U). The first downstream injection hole (HD1) injects compressed air along the flat wall (114D) of the downstream splicing chamber (113D).