Autonomous Suction Unit for Skein-End Capture
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Solution Overview
Problem
The existing spool preparation systems for automatic winders face inefficiencies in capturing and detaching the skein-end, particularly with hairy or twisted yarns, due to limitations in suction depression modulation and the use of centralized collective suction manifolds, leading to reiteration and reduced productivity.
Innovation Solution
An autonomous individual suction unit with a rotary centrifugal device and brushless electric motor allows for variable suction depression, enabling efficient capture and release of the skein-end by adjusting suction levels based on real-time sensor feedback, eliminating the need for reiteration and reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a centralized collective suction manifold is used for spool preparation, then the system structure is simplified, but the suction depression cannot be modulated independently for each spool, leading to poor capture efficiency with hairy or twisted yarns
Solution Approach 1:
The centralized suction manifold is divided into multiple independent suction units, each equipped with its own brushless electric motor and centrifugal rotary suction device. This segmentation allows each spool to receive independently modulated suction depression, significantly improving capture efficiency for hairy or twisted yarns while maintaining system manageability through modular architecture.
2Productivity
If suction depression is increased to improve skein-end capture, then capture efficiency improves, but energy consumption increases
Solution Approach 1:
The suction depression is made dynamic and adjustable through brushless electric motors with variable speed control. Each suction unit can modulate its suction level in real-time based on yarn characteristics and capture requirements, applying high suction only when necessary for difficult yarns and lower suction for standard cases, thereby optimizing energy consumption while maintaining high capture efficiency.
Solution Approach 2:
The suction depression parameter is made variable through electronic control of the brushless motors. The system can change suction levels dynamically during operation, adjusting the parameter to match the specific requirements of each spool and yarn type, thus achieving high capture efficiency without excessive energy consumption.
3Device complexity
If a centralized suction manifold is used, then system complexity is reduced, but suction depression modulation is limited, causing reiteration and reduced productivity
Solution Approach 1:
The suction system is segmented into independent units, each capable of autonomous suction depression modulation. This eliminates the need for reiteration caused by insufficient suction control, as each unit can immediately adapt to the specific yarn characteristics, thereby reducing preparation cycle time while maintaining manageable system complexity through modular design.
4Productivity
If individual suction units with variable depression are implemented, then capture efficiency and productivity improve, but device complexity increases
Solution Approach 1:
The system is divided into modular independent suction units, each with its own motor and control. This segmentation allows for improved capture efficiency through individualized suction control while managing complexity through standardized modular components that can be replicated and maintained independently.
Solution Approach 2:
Each suction unit is equipped with its own brushless electric motor and control system, making it self-sufficient and independent. This self-service capability allows each unit to autonomously adjust suction depression based on real-time requirements without interfering with other units, thereby improving overall productivity while keeping the system architecture manageable through decentralization.
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 system significantly improves the initial capture efficiency of the skein-end, reduces reiteration, and enhances productivity by allowing precise modulation of suction depression according to the specific requirements of each spool, independent of other winder operations, and minimizes energy consumption.
Implementation Method 1
un dispositivo di aspirazione centrifuga rotante
Implementation Method 2
permette di modulare la depressione di aspirazione
Data Source
Figure 1~1A
Figure 2
Figure 3A
AI summary
Device for the preparation of the spools fed to an automatic winder comprising means for capturing and holding the thread skein-end by means of suction inside a mouth served from an individual suction system which alternatingly supplies both high and low depression suction, consisting of an individual sucking device which individually equips the preparation device with driving means at variable speed-rates for alternately generating a depression value that is high for capturing the skein-end or that is low for the release of the thread, respectively.