Yarn Winding Machine Dynamic Suction Port Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional yarn winding machines face challenges in reliably catching the yarn end of a package due to variations in the lift-up amount, which affects the consistency of the yarn winding process.
Innovation Solution
A yarn winding machine equipped with a holding section, contact section, moving section, yarn catching section, surface position information acquiring section, and control section, where the yarn catching section moves based on acquired surface position information to maintain a predetermined distance from the package surface, even when the lift-up amount varies, ensuring reliable yarn end catching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the lift-up amount is adjusted to maintain a constant distance between the package surface and contact roller, then the yarn winding process consistency is improved, but the reliability of yarn end catching deteriorates due to variations in lift-up amount
Solution Approach 1:
The patent employs feedback control by detecting the actual position of the package surface during lift-up operation and using this information to adjust the yarn catching section's position dynamically. This closed-loop control ensures that the yarn catching section maintains the correct distance from the package surface even when lift-up amount varies, thereby resolving the contradiction between process consistency and catching reliability
Solution Approach 2:
The patent makes the yarn catching section dynamically adjustable in position based on real-time detection of package surface position. This dynamic adaptation allows the system to compensate for variations in lift-up amount, maintaining reliable yarn end catching while preserving the consistency of the winding process
2Device complexity
If the package is separated from the contact section by a fixed lift-up amount, then the device complexity is reduced, but the manufacturing precision of yarn end catching position deteriorates
Solution Approach 1:
The patent replaces complex mechanical positioning mechanisms with a detection and control system that uses sensors to detect package surface position and automatically adjusts the yarn catching section accordingly. This substitution maintains high precision in yarn end catching position while avoiding the complexity of purely mechanical solutions
Solution Approach 2:
The system performs self-adjustment by detecting its own state (package surface position during lift-up) and automatically correcting the yarn catching section position without external intervention. This self-service capability achieves precise yarn end catching position while keeping the overall device complexity manageable
Data Source
Figure 1
Figure 2
Figure 3
AI summary
In a winder unit (10), a cradle (23) rotatably holds a package (30), an angle sensor (44) detects a rotation angle of the cradle (23), and an upper yarn suction port (35) is movable near and away from a surface of the package (30), and catches a yarn end of the package (30). A unit controlling section (50) moves the upper yarn suction port (35) to a position that is at a predetermined distance from the surface of the package (30) based on the rotation angle of the cradle (23) detected by the angle sensor (44) at the time of a lift-up.