Movable Wax Support for Yarn Winding Device

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The replacement of the wax body in existing wax applying devices attached to yarn winding devices often disrupts the yarn path, making it difficult to replace the wax body while the yarn is being connected from a package.

Innovation Solution

A wax applying device with a fixed traverse guiding portion and a movable wax support portion that can be moved out of the traverse area using a moving mechanism, such as a rotation shaft or sliding mechanism, allowing for easy replacement of the wax body without affecting the yarn path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the wax support portion is fixed to the casing, then the structure is simple and stable, but the wax body cannot be replaced without affecting the yarn path

Engineering Contradiction:
Improvewax body replacementVSAvoidmoving mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The wax support portion is designed to be movable relative to the casing through a moving mechanism, allowing it to move between a first position (where it supports the wax body in the traverse area) and a second position (where it is separated from the traverse area). This dynamic configuration enables the wax body to be replaced without affecting the yarn path, as the support portion can be moved out of the way during replacement operations.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the wax support portion is moved out of the traverse area for replacement, then the wax body can be replaced easily, but the positioning accuracy may be affected

Engineering Contradiction:
Improvewax body replacementVSAvoidwax body positioning accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The moving mechanism is configured to move the wax support portion to a predetermined second position where it is separated from the traverse area. This preliminary positioning action ensures that when the wax body is replaced, the support portion is already in the correct position to avoid interfering with the yarn path. After replacement, the support portion can be moved back to the first position with accurate positioning restored.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the wax support portion remains in the traverse area during replacement, then the positioning accuracy is maintained, but the yarn path is affected and replacement becomes difficult

Engineering Contradiction:
Improvewax body positioning accuracyVSAvoidwax body replacement
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system dynamically adjusts the position of the wax support portion based on the operational requirements. During normal operation, the support portion remains in the first position within the traverse area to maintain positioning accuracy. During replacement operations, it moves to the second position to facilitate easy wax body replacement without affecting the yarn path.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3144258B1Wax applying device and yarn winding device
Publication Date: 2018.03.07 MURATA MASCH LTD
  • EP3144258B1 patent drawingFigure 1
  • EP3144258B1 patent drawingFigure 2
  • EP3144258B1 patent drawingFigure 3

AI summary

A wax applying device configured to apply wax to a traveling yarn includes: a casing including an attachment part for attaching the casing to a yarn winding device; a traverse guiding portion configured to guide the yarn to be wound by a winding unit of the yarn winding device so that the yarn is traversed forming a traverse area; and a wax support portion configured to support a wax body while the wax body is positioned in at least part of the traverse area. The traverse guiding portion is provided to the casing in a fixed manner, and the wax support portion is attached to the casing with a moving mechanism that is configured to be movable in a direction separating from the traverse area.