Impeller Thread Laying Device Axial Positioning
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Solution Overview
Problem
Impeller thread laying devices in the textile industry require complex additional mechanisms for precise axial thread positioning, leading to reliability issues and high maintenance costs.
Innovation Solution
A simplified thread laying device with electric motors and a control device that positions the thread at a predetermined axial position along the traversing axis without the need for a complex additional mechanism, using impellers with vanes and a thread guide ruler to secure the thread between wing front sides or rear sides for stable positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complex additional mechanism is used for precise axial thread positioning, then positioning precision is improved, but device complexity increases and reliability decreases
Solution Approach 1:
The patent extracts and eliminates the complex additional positioning mechanism from the thread laying device. Instead of adding a separate mechanism for axial thread positioning, the invention uses the existing impeller structure with strategically positioned wings to directly achieve positioning, thereby removing the source of complexity and reliability issues
Solution Approach 2:
The impeller wings serve multiple functions: they guide the thread during normal winding operations and simultaneously provide axial positioning when needed. This multi-functionality eliminates the need for dedicated positioning mechanisms, resolving the contradiction between positioning precision and device complexity
2Measurement precision
If a complex additional mechanism is used for precise axial thread positioning, then positioning precision is improved, but maintenance costs and downtime increase
Solution Approach 1:
By removing the complex additional positioning mechanism entirely and using the simplified impeller wing structure for positioning, the patent eliminates the components that would require maintenance and could fail, thereby improving reliability while maintaining positioning precision
Solution Approach 2:
The impeller wings automatically provide axial positioning functionality as part of their normal operation, without requiring separate positioning mechanisms. This self-service approach reduces maintenance needs and improves reliability while achieving the required positioning precision
3Adaptability or versatility
If the thread is positioned outside the basic stroke width for creating thread reserve, then thread reserve functionality is improved, but positioning capability requires additional mechanisms
Solution Approach 1:
The patent uses dynamic control of impeller rotation to achieve thread positioning both within and outside the basic stroke width. By dynamically adjusting the impeller position and using the wings to guide the thread to specific axial locations, the system achieves versatile positioning capability without adding complex mechanisms
Solution Approach 2:
The impeller structure serves universal positioning functions for both normal winding operations within stroke width and thread reserve creation outside stroke width, eliminating the need for separate mechanisms and maintaining simplicity while achieving adaptability
Data Source
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AI summary
The invention relates to an impeller-driven thread laying for winding a thread (14) onto a spool (16), wherein a control device (38) for positioning the thread (14) in a predefined axial position (70) along the traverse axis (62) is programmed a) to control the electric motors (30) of both impellers (26, 28) such that one of the two impellers (26, 28) moves the thread (14) with the blade front side (56) of one of its blades (26a, 26b, 26c; 28a, 28b, 28c) in its rotational traversing direction (60) into the predefined axial position (70), and the respective other blade of the two impellers (26, 28) is moved around its axis of rotation (32, 34) until the thread (14) in the predefined axial position (70) has been guided between the blade front side (56) of the blade (26a, 26b, 26b; 28a, 28b, 28c) of the one impeller (26, 28) and the blade front side (56) of a blade (26a, 26b, 26b; 28a, 28b, 28c) of the other impeller (26, 28); or b) to control the electric motor (30) of one of the two impellers (26, 28) such that the impeller (26, 28) moves the thread with the blade rear side (58) of one of its blades (26a, 26b, 26b; 28a, 28b, 28c) against its rotational traversing direction into the predefined axial position (70).