Yarn Joining Device Suction Holding Mechanism

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Solution Overview

Problem

Existing yarn joining processing devices struggle with automating the yarn joining and hooking processes while maintaining yarn quality and improving operation accuracy, due to issues with yarn handling and precision movement.

Innovation Solution

A yarn joining processing device that includes a suction holding portion to grip and hold the yarn, a moving portion to precisely move the yarn, a connecting portion to join the yarn ends, and a control unit to coordinate these components for automated yarn joining and hooking processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the yarn is strongly gripped in a holding portion to move the yarn precisely, then the yarn can be reliably locked to the locking portion, but the gripped yarn portion is damaged

Engineering Contradiction:

Improveyarn positioning precisionVSAvoidyarn damage

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical gripping system with a suction-based holding system. The suction holding portion uses negative pressure to hold the yarn end, eliminating direct mechanical contact and gripping forces that cause yarn damage while maintaining precise positioning capability through controlled suction force

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs pneumatic principles through the suction holding portion that uses suction force to hold the yarn end. This pneumatic approach allows for gentle yet firm holding of the yarn without the damaging effects of mechanical gripping, enabling precise movement and reliable locking

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Object-affected harmful factors

If the yarn is held on a hook to avoid yarn damage, then the yarn quality is maintained, but irregular slack occurs in the yarn making it difficult to precisely move the yarn end

Engineering Contradiction:

Improveyarn damageVSAvoidyarn positioning precision

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The patent replaces the hook-based mechanical holding system with a suction-based pneumatic system. This substitution eliminates the irregular slack problem caused by hook holding while maintaining gentle contact that prevents yarn damage, achieving both yarn protection and precise positioning

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The suction holding portion uses pneumatic suction force to hold the yarn end, providing uniform and controllable holding force that prevents both yarn damage and irregular slack. This pneumatic approach enables precise positioning while maintaining yarn quality

Inventive Principle:

Principle #29Pneumatics and hydraulics

3Productivity

If automation is implemented for yarn joining and hooking processes, then operation efficiency is improved, but it becomes difficult to maintain both yarn quality and operation accuracy

Engineering Contradiction:

Improveoperation efficiencyVSAvoidoperation accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent implements automation using a suction-based holding system controlled by a control unit, replacing manual operations while maintaining yarn quality. The suction mechanism provides gentle yet precise control of the yarn end throughout the automated joining and hooking processes, ensuring both efficiency and accuracy

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The automated system uses pneumatic suction force to hold and position the yarn end during joining and hooking operations. This pneumatic approach enables automation while maintaining operation accuracy and yarn quality, as the suction force can be precisely controlled to prevent yarn damage

Inventive Principle:

Principle #29Pneumatics and hydraulics

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

The device enables precise and accurate automation of yarn joining and hooking processes, maintaining yarn quality by avoiding damage and ensuring stable locking of the yarn, thus improving overall operation efficiency.

Implementation Method 1

a suction holding portion which sucks the yarn and holds the yarn

Methodology Applied

Scientific EffectSuction: Suction

Data Source

PatentEP4079670B1Yarn joining processing device and yarn feeding device

Publication Date: 2025.02.12 TMT MACHINERY INC

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AI summary

A yarn joining processing device 9A controls a suction nozzle 614 and an arm portion 612 to perform a yarn hooking process including at least one of a first yarn hooking operation of holding a first yarn end Y1 by the suction nozzle 614 and locking a yarn Y of a first yarn feeding package P11 to a clip 29 by an arm portion 612 before a first setting operation of setting the first yarn end Y1 of the first yarn feeding package P11 to a yarn joining processing mechanism 64 and a second yarn hooking operation of holding a second yarn end Y2 by the suction nozzle 614 and locking a yarn Y of a second yarn feeding package P12 to the clip 29 by the arm portion 612 before a second setting operation of setting the second yarn end Y2 of the second yarn feeding package P12 to the yarn joining processing mechanism 64.