Traverse Device Yarn Guide Reciprocating Range Control

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Solution Overview

Problem

The existing yarn winding apparatuses face issues with forming packages at the desired position due to variations in the relative positional relationship between take-up tubes and traverse devices, and insufficient yarn tension during winding, leading to non-uniform yarn density and interference between adjacent traverse devices.

Innovation Solution

A yarn winding apparatus with belt-type traverse devices that allow variable reciprocating ranges and include tension varying means to ensure sufficient yarn tension, and overlapping arrangement to avoid interference, along with control sections to maintain uniform yarn density.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If take-up tubes are reused multiple times, then production efficiency is improved, but the length of take-up tubes varies due to atmospheric conditions, causing deterioration of relative positional relationship with traverse devices

Engineering Contradiction:

Improveproduction efficiencyVSAvoidrelative positional relationship

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The traverse device is designed with adjustable reciprocating range, allowing the yarn guide to traverse over a variable distance. This dynamic adjustment capability compensates for variations in take-up tube length, maintaining proper packaging position even when tubes expand or contract due to atmospheric conditions during reuse.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system allows changing the reciprocating range parameter of the yarn guide based on the actual length of the take-up tube. By adjusting this parameter, the traverse device adapts to different tube lengths, ensuring that packages are formed at the desired position regardless of tube length variations.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If traverse devices are arranged closely to accommodate variable tube lengths, then adaptability is improved, but interference between adjacent traverse devices occurs

Engineering Contradiction:

Improveadaptability to tube length variationsVSAvoidinterference between traverse devices

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The adjustable reciprocating range allows each traverse device to operate within an optimized space, reducing the need for excessive spacing between devices while preventing interference.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If yarn tension is insufficient during winding, then ease of operation is improved, but yarn density becomes non-uniform and packaging quality deteriorates

Engineering Contradiction:

Improveyarn guiding easeVSAvoidyarn density uniformity

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The yarn guide is designed to catch the yarn before winding begins, establishing proper tension and positioning in advance. This preliminary action ensures that the yarn is properly guided and tensioned at the start of the winding process, preventing non-uniform density issues.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP2792629B1Traverse device in a yarn winding apparatus

Publication Date: 2017.03.29 TMT MACHINERY INC

AI summary

The present invention provides a traverse device including a traverse device main body (5) including a yarn guide (4) configured to be able to catch a yarn (Y), wherein the traverse device main body enables the yarn guide to reciprocate and the traverse control section 61) is configured to control operation of the traverse device main body. The yarn guide of the traverse device is configured to catch the yarn utilizing tension of the yarn. The traverse device further includes a yarn tension varying means for temporarily increasing the tension of the yarn, when the yarn guide is allowed to catch the yarn.