Swing Arm Vibration Suppression in Yarn Winding Apparatus
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Solution Overview
Problem
Existing yarn winding apparatuses with swing type contact rollers face challenges in suppressing vibrations without compromising contact pressure functionality, leading to increased vibration levels, noise, and reduced workability due to the need for vibration suppression devices that interfere with operational components and operator space.
Innovation Solution
A yarn winding apparatus with a swing arm supported on both sides at its center, incorporating a vibration suppression device with a mass object and flexible restriction member on the swing arm, positioned to align with the circular direction of the swing shaft, allowing effective vibration absorption without hindering the swing motion or contact pressure control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a vibration suppression device is provided at the free end of the frame body to suppress vibration, then vibration is suppressed, but the full length of the yarn winding apparatus is enlarged and workability is deteriorated
Solution Approach 1:
The vibration suppression function is extracted from the frame body and transferred to the swing arm, which is a separate component. The vibration suppression device is attached to the swing arm rather than the frame body, separating the vibration suppression function from the structural support function, thereby avoiding interference with operator workspace while maintaining vibration suppression effectiveness.
Solution Approach 2:
The vibration suppression device is positioned on the swing arm in a location that utilizes the spatial dimension away from the frame body's free end. By placing it on the swing arm which oscillates independently, the device suppresses vibration without occupying the operator workspace at the frame body's free end, effectively using dimensional separation to resolve the conflict between vibration suppression and workability.
2Stability of the object's composition
If a vibration suppression device is provided on the swing arm, then swing arm vibration is suppressed, but the contact pressure control operation is hindered
Solution Approach 1:
The vibration suppression device is positioned at a specific location on the swing arm that is optimized for vibration suppression while avoiding interference with the contact pressure control mechanism. The device is placed in a region where it can effectively counteract vibration without obstructing the operational space needed for adjusting contact pressure, achieving local optimization of both functions.
3Stability of the object's composition
If the mass object has flexibility in all directions to suppress various vibration modes, then vibration suppression is effective, but the device complexity increases and space requirements increase
Solution Approach 1:
The mass object is designed with flexibility characteristics tailored to the specific vibration modes that occur in the swing arm during yarn winding operations. Rather than providing uniform flexibility in all directions, the device is configured to address the predominant vibration directions, reducing complexity while maintaining effective vibration suppression for the relevant operational conditions.
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 solution effectively suppresses vibrations around the swing shaft without interfering with the swing motion or contact pressure control, maintaining operator workability and eliminating the need for additional space, thus enhancing the apparatus's performance and usability.
Implementation Method 1
the mass object and the restriction member collide each other by vibration of the swing arm
Implementation Method 2
the mass object and the restriction member collide each other by vibration
Implementation Method 3
vibration energy is transformed into thermal energy and the like and absorbed
Data Source
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AI summary
[Problem to be Solved] An object is to provide a yarn winding apparatus in which a contact roller is supported so as to be swingable about a body, wherein vibration of a swing arm is suppressed without spoiling function of the contact roller to add contact pressure. [Solution] A swing arm 31 supported on a body 10 by a swing shaft 32 and swingable around the swing shaft 32, a contact roller 33 supported by the swing arm 31 and contacting a package P formed on winding bobbins B with which a bobbin holder 21 is equipped, and a vibration suppression device 60 which has a mass object 61 and a restriction member 63 supporting the mass object 61 with flexibility and is provided in the swing arm 31 so that the mass object 61 and the restriction member 63 collides each other by vibration of the swing arm 31 are provided. A component of the flexibility of the mass object 61 is provided at least within a plane perpendicular to the swing shaft 32 of the swing arm 31 and in circular direction centering on the swing shaft 31.