Yarn Winder With Rotational Storage Drum For Continuous Winding
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Solution Overview
Problem
Current yarn winders face interruptions and inefficiencies due to yarn breakage, high power consumption, and difficulty in removing defects, as increasing winding speed leads to yarn breakage and alignment issues, and existing solutions do not effectively address defect removal and continuous winding without interruption.
Innovation Solution
A yarn winder with a yarn storage section between the yarn supplying portion and the winding section, featuring a rotational storage drum that rotates in both directions, allowing continuous winding and yarn joining without interruption, and includes a controller for coordinated winding and storage operations, along with a guide member and yarn end capturing means to manage yarn alignment and tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the winding speed is increased to improve production efficiency, then productivity increases, but yarn breakage occurs more frequently and alignment issues arise
Solution Approach 1:
The suction arm is positioned in advance near the package surface, and the relay pipe is positioned near the yarn supplying bobbin, so that when yarn breakage or bobbin replacement occurs, the yarn ends can be immediately caught without requiring reverse rotation of the package. This preliminary positioning enables continuous winding at high speed without interruption.
Solution Approach 2:
The suction arm and relay pipe act as intermediary components that directly catch yarn ends at critical locations (package surface and yarn supplying bobbin), eliminating the need for package reverse rotation. This intermediary mechanism allows seamless yarn joining while maintaining high winding speed and preventing yarn breakage.
2Ease of operation
If the package is reverse-rotated to perform yarn joining operations, then yarn joining can be performed, but the surface of the package is disrupted and alignment of wound yarn is disturbed
Solution Approach 1:
The yarn joining function is extracted from the package rotation system. Instead of rotating the package to access yarn ends, the suction arm and relay pipe independently catch yarn ends at their respective locations and guide them to the joining device. This separates the joining operation from package rotation, preventing disruption to yarn alignment.
Solution Approach 2:
Instead of rotating the package to bring yarn ends to the joining device, the system inverts the approach by bringing the joining device (via suction arm and relay pipe) to the yarn ends at their original positions. This inversion eliminates the need for package reverse rotation and preserves yarn alignment.
3Ease of operation
If the winding operation is interrupted for yarn joining, then yarn joining can be performed, but continuous winding is broken and efficiency is reduced
Solution Approach 1:
The suction arm and relay pipe enable yarn joining operations to occur without interrupting the winding process. The suction arm catches the upper yarn end while the relay pipe catches the lower yarn end simultaneously, allowing continuous winding to proceed uninterrupted while yarn joining is performed in parallel.
Solution Approach 2:
The suction arm and relay pipe are pre-positioned to catch yarn ends immediately when breakage or bobbin replacement occurs, eliminating the need to stop winding for yarn retrieval. This preliminary positioning enables seamless continuation of the winding operation.
4Ease of operation
If the package is stopped and then restarted at high speed, then winding can resume, but power consumption increases
Solution Approach 1:
The winding operation continues without interruption because the suction arm and relay pipe handle yarn joining independently of package rotation. The package maintains its rotational motion throughout the yarn joining process, eliminating repeated stopping and starting that would increase power consumption.
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
Enables continuous yarn winding without interruptions, effectively manages yarn joining and defect removal, reduces power consumption, and improves winding efficiency by maintaining yarn alignment and tension, preventing entanglement and ballooning.
Implementation Method 1
the suction arm which catches the yarn end on the winding bobbin side and guides the yarn to the yarn joining device
Implementation Method 2
the relay pipe which catches the yarn end on the yarn supplying bobbin side and guides the yarn to the yarn joining device
Implementation Method 3
the yarn end of the yarn (lower yarn) on the new yarn supplying bobbin is blown up by an airflow and is sucked and caught by the leading end of the relay pipe
Data Source
Figure 1
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Figure 3
AI summary
A yarn is continuously wound by a yarn winder without interruption. When a yarn guiding member 73 guides a yarn Y to a tapered portion 71a which is the lower left end portion of a rotational storage drum 71, the yarn Y is wound onto the tapered portion 71a as the rotational storage drum 71 rotates and moves rightward and upward along the surface of the tapered portion 71a, with the result that the yarn Y is stored in the rotational storage drum 71. The yarn Y unwound from the rotational storage drum 71 passes through a gap between a rubber-made annular component 81 wrapping up the rotational storage drum 71 and the surface of the rotational storage drum 71 and runs toward a winding section 6. Furthermore, an airflow flowing from the rotational storage drum 71 side to the upper yarn guide pipe 26 side is generated by a blowdown nozzle 74 in the yarn guiding member 73 and the rotational storage drum 71 is rotated in a direction opposite to the direction at the time of winding the yarn, so that the yarn end of the yarn Y on the rotational storage drum 71 is sucked and drawn out to the upper yarn guide pipe 26.