Antistatic Unit for Yarn Winding Contact Roller
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-speed yarn winding and increased number of bobbins in yarn winding apparatuses lead to significant static electricity generation, causing electrical corrosion and operational issues due to accumulated static electricity in contact rollers.
Innovation Solution
Incorporation of an antistatic unit with conductive fibers exposed at multiple parts and a static electricity removing string that is attached to a highly-rigid mounting member, positioned close to the contact roller to facilitate discharge while preventing physical contact and wear, effectively managing static electricity accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the winding speed is increased to improve productivity, then the production efficiency is improved, but the amount of static electricity generated by friction between the contact roller and package increases, causing electrical corrosion and operational issues
Solution Approach 1:
The patent introduces an antistatic unit that includes a discharge electrode positioned near the contact roller. The static electricity generated by friction is not merely suppressed but is actively collected and discharged through the electrode to the ground, converting the harmful static charge into a controlled electrical discharge process that prevents accumulation and subsequent damage to conductive members
Solution Approach 2:
The antistatic unit acts as an intermediary between the contact roller and the ground. The discharge electrode serves as a mediator that provides a controlled path for static electricity to discharge, preventing direct discharge to conductive members and their associated damage while maintaining the high-speed winding process
2Productivity
If the number of bobbins attached to one bobbin holder is increased to improve productivity, then the production efficiency is improved, but the total amount of static electricity generated by friction at multiple contact points increases, causing more severe harmful effects
Solution Approach 1:
The patent combines multiple discharge points into a unified antistatic unit system. When multiple packages contact the rotating body simultaneously, each contact point generates static electricity that is collected and discharged through the integrated antistatic unit, consolidating the management of static electricity from multiple sources into a single coordinated system
Solution Approach 2:
The antistatic unit converts the harmful static electricity generated at multiple contact points into a beneficial controlled discharge process. The discharge electrode provides a safe path for all static charges to be neutralized, transforming what would be multiple separate harmful discharge events into a unified controlled process that protects conductive members
3Reliability
If the antistatic unit is made to contact the rotating body to remove static electricity, then the static electricity removal effectiveness is improved, but the antistatic unit and rotating body experience wear and require frequent replacement
Solution Approach 1:
The discharge electrode serves as an intermediary that removes static electricity without direct contact with the rotating body. By positioning the electrode near the contact roller and utilizing electrical discharge through air or minimal gap, the system achieves effective static electricity removal while preventing mechanical wear between the antistatic unit and rotating components
Solution Approach 2:
The patent replaces a mechanical contact-based static electricity removal system with an electrical discharge-based system. Instead of using friction or direct contact to transfer static charge, the discharge electrode creates an electrical field that ionizes the air gap and facilitates charge transfer without mechanical contact, thereby eliminating wear
4Productivity
If the antistatic unit is positioned close to the rotating body to facilitate static electricity discharge, then the discharge efficiency is improved, but the risk of physical contact and subsequent wear increases
Solution Approach 1:
The discharge electrode is positioned dynamically close to the rotating body to maximize discharge efficiency while maintaining a safe gap. The electrode may be adjustable or positioned to account for variations in the rotating body's position, ensuring consistent electrical discharge without mechanical contact throughout the rotation cycle
Solution Approach 2:
The system uses electrical field interaction to replace mechanical contact for static electricity removal. The discharge electrode creates an electrical field that extends into the gap between itself and the rotating body, allowing static charge to be transferred through ionized air rather than direct physical contact, thus achieving high discharge efficiency without wear
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 antistatic unit effectively reduces the impact of static electricity, preventing electrical corrosion and ensuring proper yarn winding by efficiently discharging static electricity, thereby improving package quality and extending component lifespan.
Implementation Method 1
an antistatic unit configured to remove static electricity from the rotating body
Implementation Method 2
a static electricity removing member in which conductive fibers are exposed at plural parts of the surface
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An influence of static electricity generated by friction between a rotating body and a package is restrained in a yarn winding apparatus including the rotating body which rotates while being in contact with the outer circumferential surface of the package. A yarn winding apparatus forming a package by winding a yarn onto a bobbin includes a rotating body 18 configured to rotate while being in contact with the outer circumferential surface of the package and an antistatic unit 40 configured to remove static electricity from the rotating body 18.