Movable Yarn Feeder Carrier for Low-Vibration Flyknit Weaving

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Solution Overview

Problem

Flat knitting machines experience instability and vibration due to yarn holder sliding on guide rails, leading to wear and tear, reduced knitting efficiency, and limited warp direction extension performance in Flyknit fabrics, necessitating frequent yarn nozzle avoidance and long production times.

Innovation Solution

A yarn holder with movable yarn nozzles and independent adjustment mechanisms allows for precise control over the position and direction of yarn nozzles, enabling more efficient weaving actions and integration of warp structures without yarn kicking, enhancing stability and aesthetic effects in Flyknit fabrics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the yarn holder slides on the guide rail during knitting, then the knitting machine can operate, but instability and vibration occur causing wear and tear on components

Engineering Contradiction:

Improveknitting machine stabilityVSAvoidvibration and wear

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The yarn holder is transformed from a sliding mechanism to a movable system that can be dynamically positioned. The yarn holder can move along the guide rail to different positions and then remain stationary during knitting operations, eliminating the harmful sliding motion while maintaining operational flexibility.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The positioning system is divided into two independent adjustment mechanisms: a first mechanism for controlling the yarn holder's position along the guide rail, and a second mechanism for controlling the yarn nozzle's position on the yarn holder. This segmentation allows each mechanism to optimize its function independently, reducing overall system vibration.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If frequent yarn nozzle avoidance is required in Flyknit fabric weaving, then warp yarn weaving can be integrated, but production time increases significantly

Engineering Contradiction:

Improvewarp yarn integration capabilityVSAvoidproduction time

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The yarn nozzle is made movable relative to the yarn holder through the second adjustment mechanism, allowing it to dynamically avoid other yarn nozzles or threads during the weaving process. This dynamic avoidance capability enables warp yarn integration without requiring frequent stopping or complex repositioning, thus maintaining high production speed.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The yarn holder system with movable yarn nozzles can perform multiple functions: it can weave Flyknit fabric, integrate warp yarns, and avoid obstacles without requiring separate mechanisms. This multi-functionality reduces production time by eliminating the need for frequent setup changes or specialized equipment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If the yarn holder and yarn nozzle positioning systems are integrated, then control is simplified, but the ability to perform complex weaving actions is reduced

Engineering Contradiction:

Improvecontrol mechanism simplicityVSAvoidweaving action flexibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The two adjustment mechanisms are combined in a coordinated manner where the first mechanism positions the yarn holder and the second mechanism positions the yarn nozzle on the holder. This merging of mechanisms allows complex weaving actions to be achieved through coordinated operation, maintaining versatility while simplifying overall control architecture.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4632125A1Yarn carrier having movable yarn feeder, textured weave, fabric, flyknit fabric, and knitting process therefor

Publication Date: 2025.10.15 SINCETECH FUJIAN TECH CO LTD

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AI summary

The present application relates to the field of knitting technology, particularly to a yarn holder with movable yarn nozzle, texture structure, fabric, Flyknit fabric, and its weaving process, wherein the yarn holder comprises a yarn holder and several yarn nozzles. The yarn holder is provided with a first adjustment mechanism for controlling and adjusting the position and direction of the yarn holder. The position and direction of the movable yarn nozzle are adjusted through a second adjustment mechanism on the yarn holder, and at least one movable yarn nozzle is arranged on the yarn holder. The yarn holder according to the present application can be provided with fixed yarn nozzles and movable yarn nozzles. The movable yarn nozzle is controlled by a mechanical structure to move and swing within the active area on the yarn holder. The active area is divided into various types based on the layout of the yarn nozzles. Additionally, the layout structure of the fixed yarn nozzles and movable yarn nozzles is configured as a hierarchical structure, which facilitates the yarn nozzle to perform more weaving actions. The movable yarn nozzle can swing back and forth, so that the moving amplitude of the movable yarn nozzle is adjusted to be smaller than the swing amplitude. The movable yarn nozzle can be adjusted quickly to the weaving position, and the coordination effect is good.