Yarn Winder Contact Portion for Stable Threading
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Solution Overview
Problem
Existing yarn winders face issues with yarn entanglement and positioning errors due to airflow-generated shaking, leading to improper yarn transfer from the threading member to the fulcrum guides.
Innovation Solution
Incorporating a yarn contact portion between the suction holding member and the yarn threading member to prevent airflow-induced shaking, ensuring stable yarn transfer by maintaining contact and adjusting the positional relationship to prevent detachment, while the yarns are guided smoothly onto the bobbins using a tilted or curved contact surface and a wind guide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a suction gun is used to suck and hold yarns during threading, then yarns can be gathered and positioned, but airflow-generated shaking propagates to upstream yarns causing entanglement and positioning errors
Solution Approach 1:
A yarn contact portion is introduced as an intermediary element between the suction gun and the yarn threading member. This contact portion receives the yarns from the suction gun and transfers them to the threading member, thereby isolating the threading member from the harmful airflow shaking while maintaining the yarn threading function.
2Productivity
If the yarn threading member moves relative to fulcrum guides to perform threading, then threading operation is enabled, but yarn shaking from suction gun airflow prevents proper yarn transfer
Solution Approach 1:
The yarn contact portion serves as a mediator that decouples the threading member from the suction gun's airflow disturbances. It allows the threading member to move freely for efficient threading while ensuring stable yarn transfer to the fulcrum guides through the contact portion's physical support.
3Reliability
If the yarn contact portion is positioned to prevent shaking propagation, then yarn stability is improved, but the structure becomes more complex
Solution Approach 1:
Instead of making the entire threading system complex, the yarn contact portion is designed as a localized simple structure. It provides the necessary yarn stability function only at the critical location where the suction gun airflow interacts with the threading process, keeping the rest of the system simple.
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
This solution effectively suppresses yarn shaking and ensures proper threading and winding by maintaining yarn contact and reducing the force required for transfer, preventing detachment and breakage, and facilitating smooth movement onto the bobbins.
Implementation Method 1
a sucking holding member configured to suck and hold yarns
Implementation Method 2
prevent yarn shaking caused by an airflow generated by the sucking holding member from being propagated to the yarn threading member
Data Source
Figure 1
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AI summary
Yarn threading from a yarn threading member to fulcrum guides is properly performed. A spun yarn take-up machine 1 is arranged so that, as a yarn threading member 30 is moved relative to fulcrum guides 20 while yarns Y sucked and held by a suction gun 80 are retained by the yarn threading member 30, yarn threading to the fulcrum guides 20 is performed. The spun yarn take-up machine 1 includes a yarn contact portion 51 which is positioned to be able to make contact with the yarns Y running between the yarn threading member 30 and the suction gun 80.