Parallel Yarn Threading Member with Inclined Guide Rails
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Solution Overview
Problem
Existing yarn winding devices require sequential threading of yarns onto two yarn winding portions, which is inefficient and time-consuming, especially when a large number of bobbins are involved.
Innovation Solution
A yarn winding device with two yarn winding portions and a yarn threading member featuring inclined guide rails and movable yarn holding portions allows for parallel threading of yarns onto both portions by moving the threading member in the arrangement direction, facilitated by a handle and engaging portions for easier operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sequential threading is used for two yarn winding portions, then the threading process is simple to operate, but the productivity is low and time-consuming
Solution Approach 1:
The yarn threading member is divided into multiple yarn holding portions (first, second, third, and fourth portions) that can simultaneously thread yarns into different winding portions. This segmentation allows parallel operation across multiple yarn guides, transforming sequential threading into simultaneous multi-point threading, thereby significantly improving productivity without requiring complex coordinated mechanisms.
Solution Approach 2:
Multiple yarn holding portions are combined into a single integrated yarn threading member that operates simultaneously. The member includes multiple yarn guides and holding portions that work in parallel, merging the functionality of what would otherwise require separate threading operations. This combining approach enables one operator to thread multiple yarns into multiple winding portions simultaneously, resolving the contradiction between simplicity and productivity.
2Manufacturing precision
If the yarn threading member moves along a guide rail inclined at a predetermined angle, then threading accuracy is improved and working efficiency is enhanced, but the device complexity increases
Solution Approach 1:
The guide rails are arranged asymmetrically with different inclinations for different sections. Specifically, the first and second guide rails have a first inclination angle, while the third and fourth guide rails have a second inclination angle that differs from the first. This asymmetric arrangement allows each yarn holding portion to follow its optimal threading path, improving threading accuracy for different yarn groups while maintaining operational simplicity through the unified inclined plane structure.
Data Source
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AI summary
There is provided a yarn winding device arranged to enable yarn threading operations onto yarn guides of two yarn winding portions to be performed in parallel with each other. A yarn winding device 5 includes: two winding units 10; and a yarn threading member 26 with which yarns Y are threaded onto fulcrum guides 21 of the two winding units 10. Guide rails 25 of the two winding units 10 extend to be inclined relative to an arrangement direction of the fulcrum guides 21 in opposite directions to each other. The yarn threading member 26 includes two yarn holding portions 30 and a supporting portion 31. The yarn holding portions 30 are provided so as to respectively correspond to the two winding units 10 and configured to be engaged with the guide rails 25 in a slidable manner. The supporting portion 31 supports the two yarn holding portions 30 so as to allow the yarn holding portions 30 to get close to and away from each other.