Ring Spinning Machine Common Lifting Mechanism

Solution Overview

Problem

The existing ring spinning machines require complex and costly drive systems to manage the different speeds of traverses for spinning rings, balloon constriction rings, and traveling thread guides, which complicates the design and increases the number of moving parts.

Innovation Solution

A common lifting device is used for at least two traverses, employing a pulley system with fixed and loose rollers to convert longitudinal movement into up and down movement, allowing for different speed ratios between traverses without increasing the number of moving parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If each crossbeam is equipped with its own drive, then the lifting speeds can be independently adjusted, but the device complexity and number of moving parts increases

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple independent drives into a single common drive mechanism located at the end of the machine. This common drive simultaneously controls the lifting of multiple crossbeams (spinning ring traverse, balloon constriction ring traverse, and traveling yarn guide traverse) through a unified transmission system, thereby reducing the total number of drives while maintaining independent speed control capability through differential gear mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The common drive mechanism serves multiple functions: it simultaneously drives all three traverses, provides differential speed control for each traverse, and maintains synchronized operation. The universal nature of this single drive system allows it to replace multiple specialized drives while achieving the same operational objectives.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Speed

If winding drums of different diameters are used to achieve different lifting speeds, then the speed ratio is constant, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent introduces intermediate transmission elements (gears, belts, or chains) between the common drive and the winding drums. These intermediaries allow for variable speed transmission without requiring winding drums of significantly different diameters, thereby reducing structural complexity while maintaining the capability to achieve different lifting speeds for various traverses.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If multiple independent lifting devices are used, then the design is robust, but the number of moving parts and operational complexity increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent merges multiple independent lifting devices into a single integrated lifting system with a common drive mechanism. This unified system reduces operational complexity by providing centralized control while maintaining reliability through redundant transmission paths and synchronized operation of multiple traverses.

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

This simplifies the design by reducing the number of moving parts and allows for precise control of traverse speeds, achieving optimal spinning geometry while reducing operational complexity and costs.

Implementation Method 1

employing a pulley system with fixed and loose rollers to convert longitudinal movement into up and down movement

Methodology Applied
Scientific EffectPulley: Pulley

Data Source

PatentEP3181742B1Ring spinning machine
Publication Date: 2021.02.17
  • EP3181742B1 patent drawingFigure 1~2
  • EP3181742B1 patent drawingFigure 3~4

AI summary

The present invention relates to a ring spinning machine (1) with a plurality of spinning stations (2) arranged side by side in the longitudinal direction, wherein traverses (10, 10', 10", 9, 9', 9", 8, 8") for spinning rings (3), balloon constriction rings (4) and wandering thread guides (5) extend in the longitudinal direction (7) of the ring spinning machine (1).According to the invention, a common lifting means (12) extending in the longitudinal direction (7) of the ring spinning machine (1) is assigned to a first traverse (10, 10', 10") and a second traverse (9, 9', 9"), traction means (13, 13') are operatively connected to the lifting means (12), the traction means (13) are deflected via a fixed pulley (11) such that the movement of the lifting means in the longitudinal direction (7) is converted into an up and down movement, the traction means (13, 13') are deflected via a loose pulley (14, 14', 14"), the loose pulley (14, 14', 14") is attached to the first traverse (10, 10', 10") and the traction means (13, 13') are attached to a fixed part (6) of the ring spinning machine (1).