Synthetic Yarn Splicer Injection Hole Diameter Optimization
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Solution Overview
Problem
Conventional synthetic yarn splicers struggle to form entangled portions with sufficient tensile elongation, especially with thin yarns having fewer filaments, leading to decreased production efficiency and increased risk of yarn breakage.
Innovation Solution
A synthetic yarn splicer with a yarn splicing portion featuring a circular passage and injection hole of specific diameters (0.8 mm to 1.3 mm) and a chamber diameter of 3.0 mm to 4.0 mm, which allows for effective fluid action and yarn swaying, ensuring stable entanglement and reduced tensile elongation loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional splicing methods are used, then splicing operation can be performed, but tensile elongation of entangled portion decreases and yarn may break
Solution Approach 1:
The invention changes the physical parameters of the splicing system by specifying precise diameter ranges for the injection hole (φ0.8mm to φ1.3mm) and chamber (φ3.0mm to φ4.0mm). These parameter changes optimize the fluid action on the yarns, enabling effective entanglement while maintaining tensile elongation and preventing yarn breakage during winding operations.
2Manufacturing precision
If manual splicing is performed by operator, then splicing can be completed, but quality of entangled portion varies and production efficiency decreases
Solution Approach 1:
The invention replaces the manual mechanical splicing operation with an automated system that uses fluid injection through specifically dimensioned holes and chambers. This substitution eliminates operator skill variability, ensures consistent entanglement quality, and maintains high production efficiency through automated operation.
Solution Approach 2:
By defining specific diameter ranges for the injection hole and chamber, the invention transforms manual splicing into a controlled process with repeatable parameters, ensuring consistent entanglement quality regardless of operator skill level while maintaining automated production speed.
3Force
If injection hole diameter is smaller, then fluid action is concentrated, but force of injected fluid becomes insufficient to form entangled portion
Solution Approach 1:
The invention identifies and applies the optimal parameter range for injection hole diameter (φ0.8mm to φ1.3mm) that balances fluid force concentration with sufficient total force. This parameter optimization ensures the injected fluid has enough force to effectively entangle the yarns while maintaining adequate force magnitude through the specified diameter range.
4Quantity of substance
If injection hole diameter is larger, then fluid action is sufficient, but entangled portion cannot be appropriately formed
Solution Approach 1:
The invention sets the upper limit of the injection hole diameter at φ1.3mm to prevent excessive fluid quantity from disrupting the entanglement formation process. This parameter constraint ensures that while sufficient fluid is injected to move and entangle the yarns, the fluid action remains controlled and appropriate for forming a stable entangled portion.
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 splicer effectively forms entangled portions with improved tensile elongation, even with thin and low-filament yarns, enhancing production efficiency and reducing yarn breakage, by optimizing fluid action and yarn movement within the specified diameter ranges.
Implementation Method 1
an injection hole that opens to the passage and injects a fluid
Data Source
Figure 1
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AI summary
A synthetic yarn splicer 1 includes: a yarn splicing portion 10 that includes a chamber 14 which forms a space through which a first yarn Y1 and a second yarn Y2 are insertable and an injection hole 16a which opens to the chamber 14 and injects a fluid; and a first clamping mechanism 20 and a second clamping mechanism 30 that are provided at a position interposing the chamber 14 of the yarn splicing portion 10 and clamp each of the first yarn Y1 and the second yarn Y2 inserted through the space, in which the injection hole 16a has a circular shape, and in which a diameter R2 of the injection hole 16a is equal to or larger than φ0.8 mm and equal to or smaller than φ1.3 mm.