Central Traverse Detection for Yarn Winding Devices
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Solution Overview
Problem
Conventional yarn winding devices with independent package drive and yarn traversing mechanisms face challenges in detecting traverse defects, leading to defective packages due to the need for multiple detection sections and frequent position adjustments, especially when traverse widths change.
Innovation Solution
A yarn winding device with a traverse detection section positioned at the central part of the traverse or package width, allowing for detection of traverse defects without multiple detection sections and eliminating the need for position adjustments, using a reflective sensor to detect yarn presence or absence between guiding plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traverse detection sections are arranged at both left and right ends to detect all traverse defects, then detection reliability is improved, but device complexity and cost increase
Solution Approach 1:
The invention extracts the essential detection function to a single central location. By placing the traverse detection section at the central part of the package width and detecting yarn presence/absence, the system achieves comprehensive defect detection without needing multiple sections at both ends, thereby reducing device complexity while maintaining reliability
Solution Approach 2:
The invention introduces guiding plates that create a specific yarn path through the central detection zone. The guiding plates act as intermediaries to ensure the yarn passes through the detection section under normal conditions, allowing a single central detector to effectively monitor the entire traverse motion and detect defects where yarn fails to reach the center
2Device complexity
If traverse detection sections are arranged at fixed positions, then device complexity is reduced, but adaptability to changing traverse widths deteriorates
Solution Approach 1:
The central detection section combined with guiding plates creates a universal detection system that works across different traverse widths. The guiding plates ensure yarn passes through the fixed central detection zone regardless of the overall traverse width, making the system adaptable to various package widths without requiring position adjustments
Solution Approach 2:
The guiding plates automatically guide the yarn through the central detection zone based on the traverse motion itself. The system self-adjusts to different traverse widths through the mechanical guidance provided by the plates, eliminating the need for manual position adjustment of the detection section
3Measurement precision
If multiple detection sections are used to cover all traverse areas, then detection precision is improved, but loss of time for adjustments increases
Solution Approach 1:
The invention segments the detection function into two parts: fixed central detection section and movable guiding plates. This segmentation allows the detection section to remain fixed while the guiding plates adapt to different traverse widths, eliminating adjustment time while maintaining detection precision through the guided yarn path
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
Enables effective detection of traverse defects, preventing defective packages by stopping traversing and cutting the yarn when defects are detected, improving productivity and reducing costs by minimizing the number of detection sections and eliminating the need for frequent adjustments.
Implementation Method 1
using a reflective sensor to detect yarn presence or absence between guiding plates
Data Source
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AI summary
A yarn winding device (100) includes a winding section (200) for winding a package (83); a traverse guide (17), driven independent from drive of the package (83), for traversing a yarn Y to be wound into the package (83); and a traverse detection section (70), arranged at a central part of a traverse width of the traverse guide (17), for detecting presence or absence of the yarn Y.