Spindle Thread Clamping Device Segmentation for Cleaning Access
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Solution Overview
Problem
Existing thread clamping devices in spinning machines are difficult to clean due to soiling by thread remnants, making them inefficient and time-consuming to maintain, especially during spindle changes.
Innovation Solution
A thread clamping device with a mechanical locking mechanism, such as a bayonet lock or slotted guides, allows the second clamping element to be easily positioned for cleaning, enabling manual access and removal of thread residues by axial displacement and rotation, ensuring the device can be thoroughly cleaned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a thread clamping device is arranged in the underwinding area of a spindle to temporarily fix the thread, then the time-consuming cleaning of winding points is avoided, but the device itself becomes soiled by thread remnants and difficult to clean
Solution Approach 1:
The clamping device is divided into separable components: a stationary first clamping element fixed to the spindle and a movable second clamping element that can be detached. This segmentation allows the movable element to be removed for cleaning while leaving the stationary element on the spindle, resolving the contradiction between avoiding winding point cleaning time and enabling easy cleaning of the clamping device itself.
Solution Approach 2:
The movable second clamping element is extracted as a separate, removable component from the clamping system. This extraction enables the element to be taken out for cleaning purposes, addressing the difficulty of cleaning the clamping device while maintaining the benefit of temporary thread fixation during operation.
2Ease of operation
If the second clamping element is mounted to be axially displaceable to enable cleaning, then the device can be cleaned more easily, but the mechanical complexity of the device increases
Solution Approach 1:
The second clamping element is designed with dynamic characteristics, being mounted to be axially displaceable rather than fixed. This dynamic mounting allows the element to move for cleaning access while maintaining structural simplicity, balancing the ease of cleaning with acceptable mechanical complexity.
Solution Approach 2:
The displaceable mounting is applied locally only to the second clamping element that requires cleaning access, while the first clamping element remains stationary and fixed to the spindle. This localized application of mobility minimizes the overall mechanical complexity while achieving the cleaning objective.
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 mechanical locking device facilitates easy and effective cleaning of the thread clamping device, reducing maintenance time and improving operational efficiency by allowing the second clamping element to be securely fixed in a cleaning position, ensuring thorough removal of thread residues.
Implementation Method 1
a spring element (17), which, due to spring force, loads the second clamping element (18) in the direction of the first clamping element (15)
Implementation Method 2
centrifugal force elements (26), which, due to centrifugal force, position the second clamping element (18) at a distance from the first clamping element (15)
Data Source
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AI summary
The present invention relates to a thread clamping device (14) for a spindle (2) of a spinning or twisting machine, comprising a first clamping element (15) stationary on the upper part (3) of the spindle, a second clamping element (18) axially displaceable relative to the first clamping element (15), a loading device which, by spring force, applies pressure to the second clamping element (18) in the direction of the first clamping element (15), and a relief device which, by centrifugal force, positions the second clamping element (18) at a distance from the first clamping element (15). According to the invention, the thread clamping device (14) has a lower winding sleeve (16) stationary on the upper part (3) of the spindle, which is equipped with guide elements (22) that, in conjunction with associated guide projections (23) on a movably mounted second clamping element (18), form a mechanical locking device for the second clamping element (18).