Segmented Knitting Brake Element with Spring Section

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Solution Overview

Problem

Current braking systems for knitting machines lack efficiency and reliability in generating a consistent braking force, leading to variations in knitting quality and productivity.

Innovation Solution

A modular braking element with symmetrically or offset braking sections and a spring section, designed for interchangeable mounting on knitting elements or guide webs, generates a predetermined frictional force through a coefficient of friction, optimizing the braking force based on the receiving section's position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If brake springs are placed around the shafts of needle punches and designed in segments or angles with slots to grip the shafts, then the pushers are braked during gear and in any position, but the braking force is inconsistent and lacks reliability

Engineering Contradiction:
Improvebraking force consistencyVSAvoidbrake spring structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The braking element is divided into multiple braking sections (at least two) that can be symmetrically or offset arranged around the knitting element. Each braking section independently contacts the knitting element at different positions, providing distributed braking force that is more consistent and reliable than a single continuous brake spring.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The braking element incorporates a spring section that provides elastic flexibility, allowing the braking sections to dynamically adapt to the knitting element's position and movement. This dynamic capability ensures consistent braking force throughout the knitting element's travel, resolving the reliability issue while maintaining structural simplicity.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the braking element has multiple braking sections with spring section for flexibility, then the braking force becomes more reliable and consistent, but the device structure becomes more complex

Engineering Contradiction:
Improvebraking force consistencyVSAvoidbraking element structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple braking sections and the spring section are merged into a single integrated braking element that acts as one cohesive component. This unified structure provides reliable and consistent braking force while avoiding the complexity of multiple separate brake components, as the entire assembly functions as a single replaceable unit.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The braking element is designed as a universal component that can be interchangeably mounted on different knitting elements or guide webs. The combination of multiple braking sections and spring section provides multi-functional capability: braking, flexibility, and adaptability to different positions, all within a single standardized component that reduces overall system complexity.

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

3Adaptability or versatility

If the braking element is designed for interchangeable mounting on different receiving sections, then the braking force can be optimized for different guide channel clearances, but the mounting and adjustment process becomes more complex

Engineering Contradiction:
Improvebraking force optimizationVSAvoidmounting process
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The braking element is pre-configured with multiple braking sections and a spring section during manufacturing, so that when mounted on different receiving sections, the optimal braking force is automatically achieved without requiring complex adjustment procedures. The preliminary design ensures adaptability to different guide channel clearances while maintaining ease of installation.

Inventive Principle:
Principle #10Preliminary action

4Adaptability or versatility

If the spring section provides elastic flexibility for the braking sections, then the braking element can adapt to different positions, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveposition adaptationVSAvoidbraking section alignment
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The spring section changes the physical state of the braking element from rigid to elastic, allowing dynamic adaptation to different positions. This parameter change (from rigid to flexible) reduces manufacturing precision requirements, as the elastic deformation accommodates variations in alignment and positioning that would be critical in a rigid system.

Inventive Principle:
Principle #35Parameter changes

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 enhances process reliability, optimizes mesh patterns, increases product quality, reduces costs, and boosts productivity by providing a uniform and adjustable braking force across different guide channel clearances.

Implementation Method 1

generates a predetermined frictional force through a coefficient of friction

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

spring section, designed for interchangeable mounting

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3575465B1Braking element for braking a knitted element movement, knitting element, knitted element holder, knitting device and modular system for a knitting device
Publication Date: 2023.06.07 GROZ BECKERT KG
  • EP3575465B1 patent drawingFigure 1~2
  • EP3575465B1 patent drawingFigure 3~4
  • EP3575465B1 patent drawingFigure 5~6

AI summary

Brake element (100) for braking a knitting element movement in a guide channel, the brake element (100) comprising at least one connecting section (102, 104) and at least one brake section in which the at least one connecting section (102, 104) is displaceable between an assembly/disassembly position and a holding position, the brake element (100) comprising at least one spring section (108) and the at least one spring section (108) exerts a spring force on the at least one connecting section (102, 104) in the direction of the holding position, as well as knitting element, knitting element carrier, knitting device and modular system for a knitting device with at least one such brake element (100).