Yarn Cutting Apparatus with Integrated Shift Guide and Aspirator
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Solution Overview
Problem
Conventional yarn cutting apparatuses in take-up winding facilities require manual and complex yarn threading operations, leading to inefficiencies and increased process steps, especially when dealing with entangled yarns, and lack effective mechanisms for securely cutting multiple yarns.
Innovation Solution
A yarn cutting apparatus is designed with a yarn path regulating guide, a yarn shift guide, and an aspirator, where the yarn shift guide is positioned upstream to direct yarns and the aspirator to hold them, and a cutter is placed between the shift guide and aspirator to facilitate efficient cutting, eliminating the need for additional holding devices and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a yarn shift guide is disposed on a side opposite an aspirator, then the yarn threading operation can be performed, but the yarn shift guide serves as a hindrance to yarn threading onto a yarn path regulating guide
Solution Approach 1:
The patent combines the yarn shift guide and aspirator into a single integrated unit, eliminating the need for separate components that would interfere with each other. The yarn shift guide is formed as part of the aspirator assembly, allowing the suction function and yarn guiding function to coexist without spatial interference, thus resolving the contradiction between ease of operation and device complexity.
2Ease of operation
If the yarn threading operation is performed manually by an operator, then the yarn can be threaded, but the process step count becomes considerable and workability is reduced
Solution Approach 1:
The aspirator automatically sucks and holds the yarns that have been shifted by the yarn shift guide, eliminating the need for manual threading operations. The system performs the threading function automatically through the coordinated action of the yarn shift guide and aspirator, reducing both the process step count and the time required for yarn threading operations.
3Productivity
If increased numbers of filaments are handled to increase the number of yarns, then productivity increases, but the ability to securely cut a plurality of yarns becomes more critical
Solution Approach 1:
The yarn shift guide includes multiple guide grooves that separately guide individual yarns, allowing each yarn to be positioned and cut independently. This segmentation ensures that even when handling increased numbers of yarns, each yarn can be securely controlled and cut without interference from adjacent yarns, maintaining cutting reliability while increasing productivity.
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
This configuration improves the workability of yarn threading by reducing the need for manual clamps, simplifies the apparatus, and ensures secure cutting of multiple yarns with reduced size and cost, while the reciprocating yarn shift guide and aspirator enable efficient yarn alignment and collection.
Implementation Method 1
The aspirator is disposed further upstream than the yarn shift guide so as to suck the plurality of yarns shifted by the yarn shift guide
Data Source
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AI summary
A yarn cutting apparatus is provided that improves the workability of the yarn threading operation while securely cutting a plurality of yarns. A yarn cutting apparatus (50) is configured to cut a plurality of yarns Y and includes a yarn path regulating guide (51) configured to guide the plurality of yarns Y, a yarn shift guide (52) disposed further upstream than the yarn path regulating guide (51) so as to shift the yarns Y fed onto the yarn path regulating guide (51) to one direction, an aspirator (53) disposed further upstream than the yarn shift guide (52) so as to suck the yarns Y shifted by the yarn shift guide, and a cutter (54) disposed between the yarn shift guide (52) and the aspirator (53) so as to cut the yarns Y sucked by the aspirator (53).