Heater Yarn Contacted Member Elastic Deformation

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Solution Overview

Problem

The production cost of yarn contacted members in heaters is high due to the need for precise processing based on the specifications of the heater, which varies with the layout of the textile machine forming the yarn path.

Innovation Solution

A heater design that includes an elastic deformation holding unit to hold the yarn contacted member elastically deformed, allowing the yarn contacted surface to have a predetermined curvature without requiring pre-processing, thus reducing production costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the yarn contacted member is processed in advance based on the specifications of the heater, then the yarn path has a suitable curvature, but the production cost is high

Engineering Contradiction:
Improvecurvature precision of yarn contacted memberVSAvoidproduction cost of yarn contacted member
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The yarn contacted member is designed to be elastically deformable rather than rigidly pre-formed. The elastic deformation holding unit dynamically adjusts the curvature of the yarn contacted member during operation, allowing the same component to adapt to different heater specifications without requiring precise pre-processing for each configuration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The curvature parameter of the yarn contacted member is changed through elastic deformation rather than through permanent shaping during manufacturing. By applying elastic deformation via the holding unit, the curvature can be adjusted to match different heater specifications while using a standardized, easily manufactured linear component.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If the yarn contacted member is fixed to the heater, then the structure is stable, but the cleaning process becomes difficult

Engineering Contradiction:
Improvestructural stability of heaterVSAvoidcleaning accessibility of yarn contacted member
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system is segmented into separable components: the yarn contacted member can be detached from the heater when cleaning is required, while the heater structure remains intact. This segmentation allows the yarn contacted member to be removed for easy cleaning and then reattached to restore structural stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The attachment state of the yarn contacted member is dynamic rather than fixed. It can be attached during operation to maintain structural stability and detached during cleaning to improve accessibility, transitioning between states based on operational requirements.

Inventive Principle:
Principle #15Dynamics

3Productivity

If the yarn contacted member has a curved shape to match the yarn path, then the heating efficiency is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveheating efficiency of the heaterVSAvoidmanufacturing complexity of yarn contacted member
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The curvature is achieved dynamically through elastic deformation applied during operation rather than through complex manufacturing processes. The yarn contacted member starts as a simple linear component that is easily manufactured, then acquires the required curved shape through elastic deformation when installed on the heater.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The elastic deformation holding unit automatically provides the necessary deformation to the yarn contacted member to achieve the correct curvature for heating efficiency. The system self-adjusts the shape without requiring external intervention or complex manufacturing processes.

Inventive Principle:
Principle #25Self-service

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 design reduces production costs by eliminating the need for precise pre-processing of the yarn contacted member, while also allowing for easy attachment and detachment, improving cleaning efficiency and flexibility in heater layout.

Implementation Method 1

the yarn contacted member is heated by the heating unit... the yarn running while being in contact with the yarn contacted surface is heated by means of heat conduction

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

an elastic deformation holding unit configured to hold the yarn contacted member attached to the attaching portion while elastically deforming the yarn contacted member

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP4265829B1heater
Publication Date: 2025.03.05 TMT MACHINERY INC
  • EP4265829B1 patent drawingFigure 1
  • EP4265829B1 patent drawingFigure 2
  • EP4265829B1 patent drawingFigure 3(a)~3(e)

AI summary

An object of the present invention is to achieve the reduction in production cost of a yarn contacted member applied to a heater. A first heater 13 includes: a heat source 42; a heating unit 41 which extends in a predetermined extending direction and which is heated by the heat source 42; a yarn contacted member 43 which extends at least in the extending direction and which is heated by the heating unit 41; and an attaching portion which includes the heating unit 41 and to which the yarn contacted member 43 is attached. The yarn contacted member 43 has a yarn contacted surface 57 with which a yarn Y makes contact. The yarn contacted surface 57 extends at least in the extending direction, and is oriented at least toward one side in a predetermined height direction orthogonal to the extending direction. The first heater 13 further includes an elastic deformation holding unit 60 configured to hold the yarn contacted member 43 attached to the heating unit 41 while elastically deforming the yarn contacted member 43 viewed in a width direction orthogonal to the extending direction and the height direction. When the yarn contacted member 43 is elastically deformed and held by the elastic deformation holding unit 60, a cross sectional curve 59 in a cross section orthogonal to the width direction of the yarn contacted surface 57 has a predetermined curvature.