Pot Spinning Machine Tilting Yarn Rewinding Mechanism
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Solution Overview
Problem
Conventional pot spinning machines have a large structure due to the need to lift the entire yarn detaching element for rewinding after yarn breakage, which complicates the machinery and increases size.
Innovation Solution
A pot spinning machine design that uses an elongated member with a tiltable contact end and elastic support, allowing the yarn to be rewound by contacting the inner wall of the pot at a lower position than the cake end, reducing the machine's size and enabling efficient rewinding without the need for extensive lifting mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire yarn detaching element is lifted for rewinding after yarn breakage, then the yarn can be rewound onto the bobbin, but the machine size becomes large and structure becomes complex
Solution Approach 1:
The yarn detaching element is divided into two independent parts: a fixed base portion and a movable contact portion. The contact portion can be independently tilted to contact the yarn end on the pot inner wall, while the base portion remains stationary. This segmentation eliminates the need to lift the entire detaching element, thereby reducing machine size and structural complexity while maintaining yarn rewinding capability.
Solution Approach 2:
Instead of vertical lifting motion, the invention uses tilting motion in a different dimension. The contact portion rotates around a pivot point to achieve contact with the yarn end, transforming the rewinding mechanism from vertical displacement to angular rotation, which reduces the required machine height and overall size.
2Reliability
If the entire yarn detaching element is lifted for rewinding, then yarn rewinding is achieved, but the machine size increases
Solution Approach 1:
The yarn detaching element is divided into a fixed base portion and a movable contact portion. Only the contact portion needs to move (tilt) to contact the yarn, while the base portion remains fixed. This eliminates the need for large lifting mechanisms, thereby reducing machine size while maintaining rewinding functionality.
Solution Approach 2:
The invention replaces vertical lifting with tilting motion around a pivot point. This dimensional change from linear vertical movement to angular rotation significantly reduces the required machine height and overall footprint.
3Reliability
If the contact end of the elongated member is always in contact with the inner wall of the pot, then continuous monitoring is possible, but deformation may occur due to excessive contact load
Solution Approach 1:
The contact portion is designed to be movable rather than fixed, capable of tilting to contact the yarn end only when needed. This dynamic design allows the system to maintain monitoring capability while avoiding continuous contact that would cause deformation, thereby extending the durability of the elongated member.
Solution Approach 2:
The elastic support pre-compresses the spring to store energy, creating a ready state that can quickly respond to yarn breakage without requiring excessive contact force. This preliminary preparation allows for gentle, controlled contact that prevents deformation while ensuring reliable detection.
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 design allows for compact machinery while effectively rewinding yarn after breakage, minimizing the risk of deformation and ensuring consistent contact loads, thus maintaining machine stability and efficiency.
Implementation Method 1
an elastic support member (73c) supporting the base end portion (73b)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A pot spinning machine (1) includes an elongated member (73) including a contact end portion (73a) contactable with an inner wall (22) of a pot (12), and a base end portion (73b) supporting the contact end portion (73b), an up-down movement actuator (76) adjusting a position of the contact end portion (73a) in a height direction to a yarn end position (28b) of a yarn (18) deposited on the inner wall (22), a guide member (40) holding the elongated member (73) in a direction that crosses a tilting direction of the elongated member (73) and guiding the elongated member (73), an elastic support member (47, 48) elastically supporting the contact end portion (73a) in the tilting direction, and a tilting movement actuator (78) tilting the elongated member (73) so that the contact end portion (73a) is placed in contact with the inner wall (22) of the pot (12).