Yarn Joining Layout for Tail-Free Interlacing and Cutting
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Solution Overview
Problem
Existing yarn joining devices suffer from the generation of tail parts due to the distance between the interlacing and cutting mechanisms, leading to manual cutting issues and potential damage to the yarn, which can cause uneven dyeing in textiles.
Innovation Solution
The device incorporates first and second yarn cutting gripping means positioned close to the interlacing means, with adjustable positional relationships to minimize tail parts, and uses robotic arms for precise yarn threading and cutting, ensuring the cutting units and grip units oppose each other over the slit's extension to facilitate easy yarn insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the distance between the interlacing means and the cutting means is long, then the cutting means can effectively cut the tail part, but the tail part remains between the interlacing means and the cutting means requiring manual removal
Solution Approach 1:
The cutting function is divided into two separate cutting means: a first cutting means positioned close to the interlacing means to cut the yarn end, and a second cutting means positioned farther away to cut the tail part. This segmentation allows each cutting means to perform its specific function effectively while eliminating the need for manual tail part removal.
Solution Approach 2:
The first cutting means acts as an intermediary between the interlacing means and the second cutting means. It performs the initial cutting of the yarn end close to the interlacing point, preparing the yarn for the second cutting means to remove the tail part, thereby facilitating the overall tail part removal process.
2Manufacturing precision
If the distance between the interlacing means and the cutting means is reduced, then tail part generation is suppressed, but yarn threading becomes difficult due to bending requirements
Solution Approach 1:
The cutting operation is segmented into two stages performed by two separate cutting means. The first cutting means is positioned close to the interlacing means to make the initial cut with minimal yarn bending, while the second cutting means handles the tail part removal. This segmentation resolves the contradiction by allowing the first cut to be made easily while still achieving tail part suppression.
Solution Approach 2:
The first cutting means serves as an intermediary that performs the initial yarn end cutting close to the interlacing point. This intermediary action enables the yarn to be cut with minimal bending effort while maintaining the benefit of reduced tail part generation, thereby facilitating easier yarn threading.
3Manufacturing precision
If manual cutting is performed to remove remaining tail parts, then tail parts can be removed, but the operator may damage parts of the yarn different from the tail part
Solution Approach 1:
The system performs tail part removal automatically through the second cutting means without requiring manual intervention. The automated cutting process eliminates the risk of operator error that could cause damage to the yarn, while still achieving effective tail part removal.
Solution Approach 2:
The second cutting means acts as an intermediary automated tool that safely removes the tail part without the risks associated with manual cutting. This automated intermediary performs the delicate tail part removal operation precisely, avoiding damage to the main yarn body that could occur with manual handling.
4Manufacturing precision
If adjustable positional relationships between cutting units and grip units are implemented, then tail part generation is minimized, but device complexity increases
Solution Approach 1:
The cutting system is segmented into two independently positioned cutting means, each with its own optimal positioning relative to the interlacing means and grip units. This segmentation allows each cutting means to be positioned independently to minimize tail part generation without requiring complex coordinated adjustments of a single cutting unit.
Solution Approach 2:
The first cutting means serves as an intermediary element whose positioning can be independently optimized. By having this intermediary cutting stage, the system achieves minimal tail part generation through simpler positional relationships rather than complex adjustable mechanisms.
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 reduces tail parts, simplifies yarn threading, and prevents yarn damage, enhancing the quality of textile production by minimizing manual intervention and ensuring smooth yarn integration.
Implementation Method 1
an interlacing means (61) configured to join two yarns (Y, Y) together
Implementation Method 2
a first cutting unit (64a) and a movable blade (64a2) configured to cut the yarn (Y)
Data Source
Figure 1
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Figure 3
AI summary
Generation of a tail part is suppressed at joining of yarns. A yarn joining device 6 includes an interlacing means 61 having a slit 61a, a first clamp cutter 64 configured to cut and grip a yarn Y (yarn Yl), and a second clamp cutter 65 configured to cut and grip a yarn Y (yarn Y2). The first clamp cutter 64 is switchable between an open state in which a first cutting unit 64a and a first grip unit 64b are open and oppose each other over an extension of the slit 61a in the base longitudinal direction and a closed state in which the first cutting unit 64a and the first grip unit 64b are closed. The second clamp cutter 65 is switchable between an open state in which a second cutting unit 65a and a second grip unit 65b are open and oppose each other over the extension of the slit 61a in the base longitudinal direction and a closed state in which the second cutting unit 65a and the second grip unit 65b are closed.