Synthetic Yarn Splicer Friction Reduction
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Solution Overview
Problem
Conventional synthetic yarn splicers cause a decrease in tensile elongation of the entangled portion when used in yarn winding machines, leading to reduced production efficiency due to entanglement issues during unwinding.
Innovation Solution
A synthetic yarn splicer with a yarn splicing mechanism that includes a passage for yarn insertion, a fluid injection hole, and a pair of clamping mechanisms with specific contact surfaces to minimize friction, allowing the yarns to sway using the second contact surface as a fixed point, thus forming an entangled portion that can withstand winding tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the yarns are clamped and swayed in the passage to form an entangled portion, then the splicing operation is achieved, but the tensile elongation of the entangled portion decreases due to friction with the support portion
Solution Approach 1:
The patent introduces a second contact surface as an intermediary element between the yarn and the support portion. This contact surface serves as a dedicated interface that allows the yarn to contact and sway during the splicing operation without directly contacting the support portion structure, thereby reducing friction and preserving tensile elongation of the entangled portion.
Solution Approach 2:
The patent applies local quality by providing a specific contact surface with optimized properties at the location where yarn contact occurs. The second contact surface is positioned and configured to specifically address the friction issue at the yarn-swaying location, while other parts of the support portion maintain their original functions.
2Productivity
If the entangled portion is formed with high tensile elongation, then the winding operation can continue without stopping, but the splicing mechanism becomes more complex
Solution Approach 1:
The support portion is designed to serve multiple functions: it provides structural support for the clamping mechanism, offers a second contact surface for yarn interaction, and acts as a friction-reducing interface. This multi-functionality allows the same component to contribute to both splicing operation and tensile elongation preservation without adding separate dedicated structures.
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 effectively suppresses the decrease in tensile elongation of the entangled portion, enhancing the splicing process and maintaining production efficiency by reducing friction and ensuring stable yarn contact.
Implementation Method 1
an injection hole which opens to the passage and injects a fluid
Implementation Method 2
a clamping portion that clamps each of one yarn and the other yarn
Implementation Method 3
the second contact surface is disposed between the yarn splicing portion and the clamping portion and is located above the first contact surface... a friction due to the contact with the support portion hardly occurs in one yarn and the other yarn to be swayed
Data Source
Figure 1
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Figure 3
AI summary
A synthetic yarn splicer 1 includes a yarn splicing portion 10, a first clamping mechanism 20, and a second clamping mechanism 30. Each of the first clamping mechanism 20 and the second clamping mechanism 30 includes clamping portions 23 and 33 and support portions 22 and 32 that support the clamping portions 23 and 33, the support portions 22 and 32 include first contact surfaces 27b and 37b and second contact surfaces 27c and 37c which are disposed at a position interposing the clamping portions 23 and 33 in the facing direction of the first clamping mechanism 20 and the second clamping mechanism 30, and the second contact surfaces 27c and 37c are disposed between the yarn splicing portion 10 and the clamping portions 23 and 33 and are located above the first contact surfaces 27b and 37b.