Twisted Rubber Ring Centrifugal Alignment

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Solution Overview

Problem

Twisted sealing rings for sewer pipes, often resulting from manufacturing, require manual rotation to achieve a stable circumferentially uniform position, which is costly and inefficient.

Innovation Solution

A method and device utilizing a motor-driven torsion bar to set partially twisted rings in centrifugal rotation, with a stop edge for impact assistance, allowing them to 'spring back' into a stable position, enabling automated processing of multiple rings simultaneously.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual rotation is used to return twisted rings to stable position, then alignment accuracy is improved, but labor cost and processing time increase

Engineering Contradiction:
Improvealignment accuracyVSAvoidprocessing efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The twisted rings automatically return to their stable circumferentially uniform position through self-service mechanisms: the centrifugal rotation creates stretching forces that activate the rings' elastic memory, and the stop edge provides impact assistance to accelerate the return to stable position, eliminating the need for manual intervention

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system applies mechanical vibration through centrifugal rotation at 500-1500 RPM, which stretches the twisted rings and activates their elastic recovery mechanism, causing them to spring back to their stable position rapidly and efficiently

Inventive Principle:
Principle #18Mechanical vibration

2Manufacturing precision

If manual intervention is used to correct twisted rings, then processing quality is improved, but operational complexity increases

Engineering Contradiction:
Improvering alignment qualityVSAvoidoperational simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The device eliminates manual intervention by implementing self-service operation: twisted rings are automatically subjected to centrifugal rotation and impact forces that return them to stable position, achieving high alignment quality through automated physical mechanisms rather than human operation

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system transitions from static manual adjustment to dynamic automated processing, where the rotary drive creates controlled dynamic conditions (centrifugal force, stretching, impact) that automatically guide the rings to their stable position, improving both ease of operation and processing quality

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If rings are processed one at a time, then handling simplicity is improved, but productivity decreases

Engineering Contradiction:
Improvehandling simplicityVSAvoidprocessing throughput
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system processes multiple rings simultaneously by segmenting them along the torsion bar, with each ring independently subjected to the centrifugal rotation and return-to-stable mechanism, maintaining handling simplicity while achieving batch processing of up to 50 rings at once

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device merges multiple individual ring processing operations into a single unified operation: all rings on the torsion bar are simultaneously subjected to centrifugal rotation and automatic return to stable position, dramatically increasing throughput while maintaining operational simplicity

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

The method efficiently returns twisted rings to their stable position within a short time, eliminating the need for manual intervention and integrating seamlessly into production processes, with the potential for simultaneous processing of up to 50 rings at 500-1500 RPM, achieving 100% alignment in 10-30 seconds.

Implementation Method 1

the partially twisted rings are set in a centrifugal rotation by means of a rotary drive arranged eccentrically to the ring axis until they have reached a stable, circumferentially uniform basic position

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

This stretching causes the rings to 'spring back' into their stable, circumferentially uniform position

Methodology Applied
Scientific EffectElastic recovery: Elastic Recovery

Implementation Method 3

the rings hit against a stop edge during the slinging, which can for example be designed as a rod or wall, so that the impact effect on the rings supports the reverse rotation

Methodology Applied
Scientific EffectImpact force: Impact Force

Data Source

PatentEP1757849B1Metod and device for detwisting partially twisted rubber or plastic flexible rings
Publication Date: 2013.03.20 M O L GUMMIVERARBEITUNG
  • EP1757849B1 patent drawingFigure 1~2
  • EP1757849B1 patent drawingFigure 3~5
  • EP1757849B1 patent drawingFigure 6

AI summary

Back rotation of partially twisted flexible rubber or synthetic plastic rings, especially sealing rings for waste water pipes, in a stable equidirectional base position, so that the rings (1,7,9,10) are maintained in centrifigal rotation by a rotation drive (2,4) excentric to the ring axis until the rings attain their stable uniform base position. An independent claim is included for a device for back rotation of partially twisted flexible rubber or synthetic plastic rings.