Superconducting Stator Winding Device for Ring Spinning
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Solution Overview
Problem
Conventional ring spinning machines face productivity limitations due to frictional heat and wear between the ring and traveler, leading to reduced spindle speed and increased downtime, especially when spinning medium- and high-twist yarns, and existing solutions like magnetic levitation systems have limitations such as longer piecing times and higher installation costs.
Innovation Solution
A winding and twisting device utilizing a stator with superconducting material and a rotor with permanent-magnetic sections, arranged coaxially to the spindle, enabling magnetic levitation and reducing friction, with a stator cooling device to maintain the superconducting state and minimize cooling losses, allowing for high-speed spindle operation without wear and enabling quick piecing without stopping the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional ring/traveler system is used, then structure is simple and cost is low, but frictional heat and wear increase sharply at higher spindle speeds, limiting productivity
Solution Approach 1:
The patent replaces the conventional mechanical contact-based ring/traveler system with a magnetic field-based twisting mechanism. The traveler is equipped with a magnet that interacts with a stationary ring containing conductive segments, generating eddy currents that produce rotational force without physical contact. This substitution eliminates frictional heat and wear while enabling higher spindle speeds and improved productivity.
2Reliability
If magnetic levitation is used to eliminate friction, then lifespan is extended and forces are reduced, but piecing time increases and installation cost increases
Solution Approach 1:
The patent extracts the magnetic field generation function from the traditional mechanical friction-based system. By placing magnets on the traveler and using conductive segments on the stationary ring, the system creates a contactless magnetic interaction that eliminates wear while maintaining quick response during piecing operations, thus extending traveler lifespan without significantly increasing piecing time.
3Productivity
If higher spindle speed is used, then productivity increases, but frictional forces generate heat that must be dissipated fast, causing substantial wear
Solution Approach 1:
The patent replaces mechanical friction with electromagnetic interaction. The magnet on the traveler induces eddy currents in the conductive segments of the stationary ring, creating a magnetic field that rotates the traveler without physical contact. This eliminates frictional heat generation entirely, allowing higher spindle speeds and yarn delivery rates without temperature-related wear problems.
4Productivity
If contactless support is used, then friction is eliminated and productivity increases, but device complexity increases due to superconducting materials and cooling systems
Solution Approach 1:
The patent uses a practical electromagnetic interaction system rather than complex superconducting magnetic levitation. A magnet on the traveler induces eddy currents in simple conductive segments mounted on the stationary ring, creating sufficient rotational force through magnetic field interaction without requiring superconducting materials or complex cooling infrastructure.
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
This solution significantly increases productivity by allowing faster start-up and operation, reducing friction and wear, extending the lifespan of components, and enabling higher spindle speeds with reduced yarn tension, thus improving the quality and efficiency of ring-spun yarn production.
Implementation Method 1
the friction between the ring and the traveler is eliminated by magnetic levitation
Implementation Method 2
a stator (210) comprising a superconducting material
Implementation Method 3
a rotor (220) configured to generate a magnetic field
Implementation Method 4
a stator cooling device (240) configured to cool the stator (210)
Data Source
AI summary
The present invention provides a winding and twisting device for a ring spinning or ring twisting machine, comprising: a stator comprising a superconducting material, a stator cooling device, a rotor configured to generate a magnetic field, and a rotatable spindle, wherein the rotor and the stator are arranged co-axially to the spindle, and wherein the rotor has a ring/traveler system mounted thereon.