Sleeve Disc Centering Projection Wear Device

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Solution Overview

Problem

The existing sleeve plates in textile machines face challenges in smoothly transitioning from a non-rotation state to a winding state during bobbin changes, leading to potential damage and interruptions in the winding process, which affects process reliability and resource efficiency.

Innovation Solution

A sleeve plate design featuring a centering projection and a base body with a surface side, including a wear device and thread guide, allows for gentle bobbin sleeve reception and rotation, reducing wear and improving thread retention, enabling seamless transitions and increased reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional tube plate is used without additional functional devices, then the structure remains simple, but the reception of bobbin tube during transition from pre-rotation state to winding state causes damage and interruptions

Engineering Contradiction:
Improveprocess reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A functional device is introduced as an intermediary element between the centering projection and the bobbin tube. This functional device acts as a mediator that enables smooth transition during bobbin reception, preventing direct harmful contact between the tube plate and bobbin tube while facilitating reliable process operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The tube plate is segmented into functional components: a base body, a centering projection, and a separate functional device. This segmentation allows each component to perform its specific function independently, with the functional device handling the bobbin reception while the centering projection maintains positioning, thereby improving reliability without requiring complete redesign of the entire tube plate.

Inventive Principle:
Principle #1Segmentation

2Duration of action of stationary object

If the tube plate directly contacts the bobbin tube during reception, then the structure remains simple, but wear and damage occur leading to interruptions

Engineering Contradiction:
Improveservice life of tube plateVSAvoidstructural complexity
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The functional device serves as a protective intermediary that absorbs wear during bobbin tube reception. By placing this functional device between the tube plate and bobbin tube, the base body and centering projection are protected from direct contact and wear, extending the service life of the stationary tube plate structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The functional device is designed as a consumable component that can wear out and be replaced without replacing the entire tube plate. This approach uses a relatively simple, potentially less expensive component to protect the main structural elements, extending their service life while accepting that the functional device may need periodic replacement.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If Bobbin tube is received without additional functional devices, then the device complexity is low, but thread retention and wear resistance are insufficient

Engineering Contradiction:
Improvethread retentionVSAvoidfunctional device complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The functional device acts as an intermediary that provides thread guidance and retention features during bobbin reception. It mediates between the bobbin tube and tube plate, ensuring proper thread positioning and preventing thread damage while the bobbin is being received and centered.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The functional device provides localized thread retention and wear resistance properties at the specific location where bobbin reception occurs. Instead of making the entire tube plate complex, the functional device concentrates the necessary thread protection and retention features in the local area where they are needed during the reception process.

Inventive Principle:
Principle #3Local quality

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

The design enhances process reliability by minimizing wear and downtime, allowing for efficient bobbin changes and reduced resource consumption, while accommodating different bobbin tube diameters without replacing the entire coil frame.

Implementation Method 1

The inside of the sleeve can be guided along the truncated cone surface

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

The centering projection can have a jacket surface... designed to center the coil tube when the coil tube is received

Methodology Applied
Scientific EffectNormal force: Mechanical Force

Data Source

PatentEP4461683A1Sleeve disc
Publication Date: 2024.11.13 SAURER SPINNING SOLUTIONS GMBH & CO KG
  • EP4461683A1 patent drawingFigure 1
  • EP4461683A1 patent drawingFigure 2A~2B
  • EP4461683A1 patent drawingFigure 3A~3B

AI summary

The invention relates to a spool plate (130, 230, 530, 630) designed for mounting and centering a spool sleeve (120), comprising: - a centering projection (136); and - a base body (131), in particular circular, and furthermore in particular plate-like, with a surface side (133). The centering projection (136) can be configured to be received through an opening (125) on an end face (124) of the spool sleeve (120). The centering projection (136) is arranged rotationally centered on the surface side (133) of the base body (131) and projects from this surface side (133) and is configured to center the spool sleeve (120) in a received state. The centering projection (136) has a circumferential surface.In order to improve the reception of a coil sleeve (120) on a sleeve plate (130, 230, 530, 630) during a transition from a rotation state to a winding state, thereby increasing process reliability and saving resources, it is provided that a functional device can be assigned or is assigned to the centering projection (136), in particular to the cylindrical surface of the centering projection (136).