Multi-nozzle junction for textile machine conversion

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Solution Overview

Problem

Existing textile machines require time-consuming and costly conversions between compression devices and conventional thread suction devices, making it difficult to retrofit and switch between these configurations efficiently.

Innovation Solution

A multi-nozzle connection system that allows for easy detachment and pivoting of compression or suction devices, using a holder with spaced support members and a clip connection, enabling quick alignment and sealing, and allowing the devices to assume different positions for efficient operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a compression device is permanently installed after the drafting unit, then the yarn quality can be ensured, but the machine conversion time and cost increase significantly

Engineering Contradiction:
Improveyarn qualityVSAvoidmachine conversion time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The compression device is divided into separate modular components (compression element, holder, drive mechanism) that can be independently attached and detached from the drafting unit, enabling quick conversions without permanent installation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from static permanent installation to dynamic detachable mounting, allowing the compression device to be pivotably attached and detached from the drafting unit based on operational requirements

Inventive Principle:
Principle #15Dynamics

2Reliability

If a compression device is retrofitted to existing spinning machines, then high-quality yarn production is enabled, but the installation process becomes time-consuming and inflexible

Engineering Contradiction:
Improveyarn qualityVSAvoidinstallation flexibility
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The holder component is designed with universal mounting features that can accommodate different compression device types and configurations, enabling flexible retrofitting of existing spinning machines without requiring machine-specific custom installations

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The retrofitting system is segmented into standardized components (holder, compression element, drive mechanism) that can be independently installed and configured, reducing installation complexity and increasing flexibility

Inventive Principle:
Principle #1Segmentation

3Reliability

If additional drive shafts and permanently installed drive connections are used, then the compression device can be reliably driven, but the device complexity and installation time increase

Engineering Contradiction:
Improvedrive connection reliabilityVSAvoiddrive system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The drive mechanism is extracted from the permanent installation and integrated into the detachable holder system, allowing the compression device to be driven through the existing drafting unit drive shaft without requiring separate permanent drive connections

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The holder combines multiple functions (mounting, drive transmission, positioning) into a single integrated component, reducing the number of separate drive shafts and connections needed while maintaining reliable drive transmission

Inventive Principle:
Principle #5Merging (Combining)

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

Facilitates simple and rapid conversion of textile machines between compression and suction modes, reducing the time and cost associated with these changes, thereby improving operational flexibility.

Implementation Method 1

A suction device (46a) which comprises two suction pipes (47) arranged next to one another and connected to one another by at least one connecting element (50)

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

a compression device (46b) which comprises two suction drums (17), one suction drum each being assignable to a pair of output rollers (7, 8) of a drafting unit (2) of the textile machine

Methodology Applied
Scientific EffectCompression: Compression

Data Source

PatentEP3669021B1Multiple nozzle junction of a textile machine, textile machine, and method for operating a textile machine
Publication Date: 2021.09.01 MASCHINENFABRIK RIETER AG
  • EP3669021B1 patent drawingFigure 1
  • EP3669021B1 patent drawingFigure 2~3
  • EP3669021B1 patent drawingFigure 4

AI summary

The invention relates to a multiple nozzle junction (29) of a textile machine, particularly of a ring spinning frame, for the alternative connection of a compression device (46b) or a suction pipe device (46b) to a suction line of the textile machine. The invention also relates to a textile machine equipped with a multiple nozzle junction (29).