Interchangeable Suction Channel End Part for Fiber Fly Removal

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Solution Overview

Problem

Existing suction channel end parts for drafting systems are not cost-effective and lack flexibility in adapting to different fiber types, requiring complex adjustments or replacements to optimize fiber fly removal.

Innovation Solution

A multi-part suction channel end part design with interchangeable components, including a first component and a cover element, allows for easy adaptation to different fiber types by replacing the second component, which has variable suction openings, and can be fixed using positive-locking or friction-locking means, with optional funnels for improved suction, manufactured via 3D printing, laser sintering, or plastic injection molding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single, larger suction opening is used, then fiber fly removal efficiency is improved, but adaptability to different fiber types deteriorates

Engineering Contradiction:
Improvefiber fly removal efficiencyVSAvoidadaptability to different fiber types
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The suction channel end part is divided into multiple separate suction openings instead of a single large opening. Each suction opening can be independently adjusted or removed, allowing the system to adapt to different fiber types while maintaining effective fiber fly removal through the combined action of multiple openings.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the distance between suction openings is adjusted for different fiber types, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improveadaptability to different fiber typesVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The suction openings are designed to be movable along the suction channel, allowing their positions to be dynamically adjusted depending on the fiber type being processed. This dynamic positioning capability enables adaptability without requiring complex fixed adjustment mechanisms, as the openings can be freely repositioned along the channel length.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple adjustable suction openings are provided, then adaptability to different fiber types is improved, but manufacturing cost increases

Engineering Contradiction:
Improveadaptability to different fiber typesVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Instead of providing multiple fully adjustable suction openings with complex mechanisms, the invention uses a simplified approach where suction openings can be freely positioned along the channel without individual adjustment mechanisms for each opening. This partial adjustment capability achieves the needed adaptability while significantly reducing manufacturing complexity and cost.

Inventive Principle:
Principle #16Partial or excessive action

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

Enables efficient and cost-effective fiber fly removal in drafting systems, adaptable to various fiber types without complex adjustments, reducing disruptions by allowing easy component replacement and precise positioning of suction ports.

Implementation Method 1

suction channel end part for removing fluff in the region of a drafting system by means of vacuum application

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 2

The suction channel end part comprises a first component that can be subjected to vacuum and has an inlet and an outlet communicating with the inlet

Methodology Applied
Scientific EffectNegative pressure: Pressure Drop

Data Source

PatentEP3730683B1Suction channel end part, manufacturing method and drawing frame comprising such a suction channel end part
Publication Date: 2025.07.23 SAURER INTELLIGENT TECH AG
  • EP3730683B1 patent drawingFigure 1~2
  • EP3730683B1 patent drawingFigure 3~4
  • EP3730683B1 patent drawingFigure 5

AI summary

The present invention relates to a suction duct end section (1) for removing fiber debris in the area of ​​a drafting unit by means of applying a vacuum, wherein the suction duct end section (1) comprises a vacuum-operated first component (2) with an inlet (21) and an outlet (22) communicating with the inlet (21). The suction duct end section (1) is characterized in that it has a vacuum-operated second component (3) designed as a cover element, which is interchangeably connectable to the first component (2). The second component (3) has an opening (33) which, in the assembled state of the suction duct end section (1), forms a suction opening communicating with the inlet (21), through which the fiber debris can be removed when a vacuum is applied to the suction duct end section (1).