Spun Yarn Take-Up Threading with Bundling Guides to Limit Damage
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Solution Overview
Problem
Existing spun yarn take-up apparatuses face difficulties in easily performing yarn threading without causing damage to the yarns, particularly due to the small size of regulatory portions on yarn separation guides, leading to uneven intervals and increased difficulty in using yarn threading assisting tools.
Innovation Solution
The apparatus incorporates bundling guides upstream of yarn separation guides, which change the alignment direction of yarns and provide V-shaped concave portions for easy hooking, allowing yarns to be bundled before threading to regulatory portions, thus facilitating the use of yarn threading assisting tools and reducing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If yarns are hooked on regulatory portions of yarn separation guide, then yarn separation is achieved, but yarn damage occurs and intervals become uneven
Solution Approach 1:
The bundling guide performs preliminary bundling of yarns before they reach the yarn separation guide. By pre-organizing the yarn bundle at the bundling guide, the yarns are positioned evenly and smoothly, preventing damage when they subsequently pass through the regulatory portions of the yarn separation guide.
Solution Approach 2:
The bundling guide acts as an intermediary device between the yarn source and the yarn separation guide. It mediates the transition by providing a V-shaped concave portion that temporarily holds and organizes the yarn bundle, ensuring even intervals before the yarns are separated by the regulatory portions.
2Manufacturing precision
If regulatory portions are made small for precise separation, then yarn separation precision is improved, but yarn threading difficulty increases
Solution Approach 1:
The bundling guide performs preliminary organization of yarns into a neat bundle with even intervals before they reach the small regulatory portions. This pre-organization makes it easier for operators to thread the yarns through the difficult-to-access regulatory portions while maintaining precise separation.
Solution Approach 2:
The bundling guide with its V-shaped concave portion serves as an intermediary that holds the yarn bundle in an accessible position and orientation, making it easier for operators to manipulate and thread the yarns through the small regulatory portions of the yarn separation guide.
3Manufacturing precision
If yarns are forcibly threaded to regulatory portions, then yarn separation is achieved, but yarn damage increases
Solution Approach 1:
The bundling guide performs preliminary bundling and alignment of yarns before they reach the yarn separation guide. This ensures that yarns are already organized and positioned correctly, eliminating the need for forceful threading that could damage yarn integrity while still achieving proper separation.
Solution Approach 2:
The V-shaped concave portion of the bundling guide provides a cushioning effect by gently holding and shaping the yarn bundle before separation. This pre-positioning reduces the mechanical stress and force required during the subsequent threading process, protecting yarn integrity.
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
An object of the present invention is to provide a spun yarn take-up apparatus capable of easily performing yarn threading while suppressing damage to yarns. A spun yarn take-up apparatus 1 includes: yarn feed rollers 12 and 14 configured to feed yarns Y spun out from a spinning apparatus 2; a yarn separation guide 32 which is provided upstream of a yarn feed roller 12 in a yarn running direction and in which regulatory portions 32a configured to regulate the movement of the yarns Y in an axial direction of the yarn feed roller 12 are formed; and a yarn separation guide 34 which is provided upstream of a yarn feed roller 14 in the yarn running direction and in which regulatory portions 34a configured to regulate the movement of the yarns Y in an axial direction of the yarn feed roller 14 are formed. In the spun yarn take-up apparatus 1, the yarn separation guides 32 and 34 are respectively provided with bundling guides 42 and 44 in which bundling portions 42a and 44a are formed. The bundling portions 42a and 44a are able to bundle the yarns Y so that the yarns Y are not threaded to the regulatory portions 32a and 34a.