Spring Ring Thread Clamp Loading for Residue-Free Cop Change
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Solution Overview
Problem
Existing thread clamping devices in ring spinning machines are sensitive to contamination and have issues with thread residues entering the clamping mechanism, leading to impaired functionality, and are not adequately adjustable for different yarn materials.
Innovation Solution
A loading and unloading device with a spring ring element that utilizes a centrifugal force element to switch between stable and metastable states, allowing for precise control of the clamping mechanism, reducing contamination risk and improving adjustability for various yarn materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a thread clamping device with centrifugal force elements is used to enable automatic thread clamping and release, then the productivity and automation of the spinning cop change process is improved, but thread residues can penetrate into the annular chamber and block the centrifugal force elements, impairing the reliability of the device
Solution Approach 1:
The harmful factor (thread residues) is extracted from the system by providing a separate thread guide path that leads residues away from the annular chamber and centrifugal force elements, preventing contamination while maintaining the automatic clamping function
Solution Approach 2:
A thread guide acts as an intermediary element between the clamping elements, directing the thread and preventing residues from entering the sensitive annular chamber where the centrifugal force elements are located
2Reliability
If a fixed clamping mechanism is used to securely hold threads during spinning, then the reliability of thread holding is improved, but the device cannot be adjusted for different yarn materials, reducing its adaptability
Solution Approach 1:
The clamping mechanism transitions from a fixed state during spinning to an automatic release state through centrifugal force, enabling the same device to handle different yarn materials by adjusting operational parameters rather than physical configuration
3Reliability
If manual cleaning of winding points is performed to remove thread residues, then the reliability of the spinning process is improved, but the loss of time and productivity decreases
Solution Approach 1:
The thread guide is designed to prevent residue accumulation from the beginning, directing threads away from contamination-prone areas during the entire spinning operation, thereby eliminating the need for subsequent cleaning operations
Solution Approach 2:
The thread guide automatically performs the function of preventing contamination throughout the spinning process, with no manual intervention required, making the system self-maintaining during operation
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 provides a residue-free underwinding system with improved service life and adaptability to different yarn materials, ensuring continuous operation with reduced contamination and precise speed control, enhancing the overall performance of the thread clamping device.
Implementation Method 1
a spring ring element (10) which can be transferred suddenly between a stable state and a metastable state
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The invention relates to a loading and unloading device (1) for a thread clamping device (30) of a rotatable spinning or twisting machine spindle, wherein the loading and unloading device (1) comprises a spring ring element (10) which can be abruptly transferred between a stable state and a metastable state, an inner holding device (15) which is arranged on an inner edge (13) of the spring ring element (10) for connection to a stationary lower winding sleeve (32) of the spinning or twisting machine spindle, and an outer holding device (16) which is arranged on an outer edge (12) of the spring ring element (10) for connection to a clamping element (33) of the spinning or twisting machine spindle which is displaceable axially relative to the longitudinal axis of the lower winding sleeve (32) relative to the stationary lower winding sleeve (32).and a holding and guiding device (17) for guiding centrifugal elements (20) between a stable position and a metastable position, which can be assumed by a relative movement between the outer (16) and inner holding device (15), wherein the spring ring element (20) assumes the stable state in the stable position and the metastable state in the metastable position. The present invention is characterized in that the holding and guiding device (17) has at least one receptacle (18D, 18E) for a centrifugal element (20), which is arranged spaced apart from an annular surface section (11) of the spring ring element (10) that couples the inner (13) and outer edge (12) together.