Superconducting Ring Spinning Spindle for Frictionless Twisting

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Solution Overview

Problem

Conventional ring spinning and ring twisting machines are limited by the friction and heat generation in the ring-traveler system, which restricts spindle speed and productivity, and poses safety risks due to the high-speed rotation of the magnetic rotor.

Innovation Solution

A winding and twisting device using a stator with superconducting material and a magnetic field-generating rotor, arranged coaxially with an annular air gap, allowing magnetic levitation and reducing friction, enabling higher spindle speeds and improved safety through contactless storage and operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the rotor speed is increased to improve productivity, then the delivery speed of the yarn increases, but the rotor heats up so much that it glows and breaks

Engineering Contradiction:

Improvedelivery speed of the yarnVSAvoid rotor temperature

Core Design Contradiction:

ProductivityVSTemperature

Solution Approach 1:

The patent replaces the conventional mechanical contact-based ring-traveler system with a magnetic field-based rotor-stator system. The rotor generates a magnetic field that interacts with the stator to propel the yarn without mechanical contact, eliminating frictional heating while enabling high-speed operation and improved productivity

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a magnetic field as an intermediary between the rotor and stator to transmit force to the yarn. This magnetic field mediator allows the rotor to accelerate the yarn without direct mechanical contact, preventing heat generation while maintaining high delivery speeds

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the rotor speed is increased to improve productivity, then the delivery speed of the yarn increases, but wear increases significantly if the limits of the currently available rings and travelers are exceeded

Engineering Contradiction:

Improvedelivery speed of the yarnVSAvoidwear of ring and traveler

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent replaces the mechanical contact-based ring-traveler system with a magnetic field-based rotor-stator system. The rotor generates a magnetic field that interacts with the stator to propel the yarn without mechanical contact, eliminating frictional heating while enabling high-speed operation and improved productivity

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If a magnetic ring rotor is used for magnetic levitation to reduce friction, then the service life is extended, but the rotor has a considerable weight that must be accelerated when the spindle starts up

Engineering Contradiction:

Improveservice life of the rotorVSAvoidweight of the rotor

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent divides the rotor into multiple segments or uses a distributed magnetic field generation system. This segmentation reduces the moment of inertia of each individual component while maintaining the overall magnetic field strength, allowing for easier acceleration during startup while preserving the contactless magnetic levitation benefits

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent employs dynamic control of the magnetic field strength and distribution during startup and operation. During startup, the magnetic field is optimized to minimize rotational inertia effects, while during operation, full magnetic levitation is engaged to eliminate friction and extend service life

Inventive Principle:

Principle #15Dynamics

4Productivity

If the magnetic ring rotates at high speeds to improve productivity, then the delivery speed increases, but the freely suspended magnetic ring represents a safety risk for the system operator

Engineering Contradiction:

Improvedelivery speed of the yarnVSAvoidsafety risk to operator

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the magnetic ring rotor from its freely suspended state and integrates it into a structured stator-rotor assembly with defined geometric boundaries. The stator components enclose or constrain the rotor, preventing it from becoming a dangerous projectile while allowing it to rotate at high speeds for improved productivity

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transitions from a freely suspended one-dimensional rotation to a constrained three-dimensional assembly where the rotor is positioned within the stator structure. This dimensional constraint provides mechanical safety while maintaining the magnetic field interaction necessary for high-speed operation

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 solution enables quick startup and shutdown of machines with high performance, increases spindle speed significantly, and enhances safety by eliminating frictional heat and imbalance issues, thereby boosting productivity and yarn quality.

Implementation Method 1

the rotor and the stator are designed such that the rotor can be mounted without contact due to magnetic levitation

Methodology Applied

Scientific EffectMagnetic levitation: Maglev

Implementation Method 2

at least one stator which comprises at least one superconducting material and a stator cooling means

Methodology Applied

Scientific EffectSuperconductivity: Superconductivity

Implementation Method 3

at least one magnetic field generating rotor

Methodology Applied

Scientific EffectMagnetic field generation: Magnetic Field

Implementation Method 4

stator cooling means

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3940127B1Spooling and spinner device of a ring spinning frame or ring twisting frame, and ring spinning and ring twisting method

Publication Date: 2024.10.09 SANKO TEKSTIL ISLETMELERI SAN VE TIC A S BASPINAR SUBESI

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AI summary

A winding and twisting device for a ring spinning or ring twisting machine is provided, comprising: at least one stator comprising at least one superconducting material and stator cooling, at least one magnetic field-generating rotor, and a rotatable spindle, wherein the rotor and the stator are arranged coaxially to the spindle; and wherein the stator has several superconducting sub-regions spaced apart from each other in the circumferential direction of the spindle.