Spun Yarn Cooler Insulating Outlet for Static Suppression
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Solution Overview
Problem
Static electricity generation between synthetic resin filaments and metal outlets in spun yarn coolers causes filaments to wrap around the cooler or adhere to ducts, making yarn bring-down difficult and preventing proper filament convergence.
Innovation Solution
A ring-shaped insulating static electricity suppressor, preferably made of ceramic and matte finished, is provided at the outlet to prevent electric charge movement and reduce static electricity generation, ensuring filaments contact the insulator instead of the metal outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the outlet is made of metal, then the structural strength and durability are improved, but static electricity is generated when filaments contact the outlet
Solution Approach 1:
An insulating member is introduced as an intermediary component between the metal outlet and the synthetic resin filaments. This insulating member prevents direct contact between the filaments and the conductive metal surface, thereby blocking the generation and transfer of static electricity charges while allowing the metal outlet to maintain its structural function.
Solution Approach 2:
The insulating member can be implemented as a simple, inexpensive component such as a coating layer or a sacrificial element that can be easily applied or replaced. This allows the use of durable metal outlets while adding a low-cost insulating barrier that prevents static electricity issues.
2Object-generated harmful factors
If the outlet is made of insulating material, then static electricity generation is reduced, but the structural strength and durability are compromised
Solution Approach 1:
The outlet structure is designed as a composite system combining metal and insulating materials. The metal outlet provides the necessary structural strength and durability, while the insulating member (coating or separate component) provides the electrical insulation properties. This composite approach allows both requirements to be satisfied simultaneously.
3Ease of operation
If filaments contact the metal outlet, then the yarn bring-down process is simple, but the filaments wrap around the cooler or adhere to ducts due to static electricity
Solution Approach 1:
The insulating member acts as a mediator that allows the yarn bring-down process to proceed smoothly by preventing the harmful static electricity interactions. The insulating surface enables filaments to be handled and transferred without generating charges that would cause wrapping or adhesion problems.
4Temperature
If filaments are cooled by metal outlet contact, then the cooling efficiency is improved, but static electricity is generated
Solution Approach 1:
The insulating member is positioned to allow thermal cooling to occur while preventing electrical contact. Cooling can proceed through radiation or convection from the metal outlet, or through contact with the insulating member itself, while the insulating property prevents charge transfer and static electricity generation.
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 insulating suppressor effectively reduces static electricity, facilitating easy yarn bring-down by preventing filament repulsion and adhesion, ensuring proper handling and convergence.
Implementation Method 1
A ring-shaped insulating static electricity suppressor, preferably made of ceramic and matte finished, is provided at the outlet to prevent electric charge movement and reduce static electricity generation
Implementation Method 2
A ring-shaped insulating static electricity suppressor, preferably made of ceramic and matte finished
Implementation Method 3
The filaments are cooled and solidified by cooling wind flowing from the circumferential wall of the cooling cylinder
Data Source
Figure 1
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Figure 3
AI summary
In a spun yarn cooler, static electricity generated by contact between filaments and an outlet is restrained so that yarn bring-down is facilitated. In a spun yarn cooler 3 in which a cylindrical space 22 to which cooling wind is supplied is formed to extend in an up-down direction and filaments f which are made of synthetic resin and spun out from a spinning unit run in the cylindrical space 22 and then go out from the cylindrical space 22 thorough a lower outlet 27a, a static electricity suppressor 31 which is provided at a periphery of the outlet 27a, is insulating, and restrains generation of static electricity in the filaments f when the filaments f make contact with the static electricity suppressor 31 is provided.