Warp Knitting Machine Eccentric Adjustment Device

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Solution Overview

Problem

Current warp knitting machines require time-consuming and skill-intensive manual adjustments by trained specialists to set active elements for varying textile qualities, limiting efficiency and scalability.

Innovation Solution

A warp knitting machine equipped with a master axis and an adjusting device featuring eccentric bolts and scales allows for precise, value-readable adjustments of active elements, enabling efficient setting of angular positions and distances between elements, even during operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual adjustment by trained specialists is used, then adjustment precision can be achieved, but adjustment time and operational complexity increase significantly

Engineering Contradiction:
Improveadjustment precisionVSAvoidadjustment time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The adjustment device enables operators to perform adjustments independently without requiring specialized training. The device includes self-explanatory components such as numbered adjustment elements and visual indicators that guide operators through the adjustment process, allowing them to achieve precise settings on their own rather than requiring trained specialists.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent employs visual indicators and color-coded elements on the adjustment device to help operators quickly identify and select the correct adjustment positions. Numbered markings and visual cues on the scale and adjustment elements provide immediate feedback and guidance, enabling operators to achieve precise adjustments rapidly without trial and error.

Inventive Principle:
Principle #32Color changes

2Adaptability or versatility

If multiple guide bars and adjustable eccentrics are used, then adaptability to different fabrics is improved, but device complexity and adjustment difficulty increase

Engineering Contradiction:
Improvefabric adaptabilityVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The adjustment device is divided into modular components, with each guide bar and knitting element having independent adjustment capabilities. The eccentric adjustments are segmented into individual controllable elements, allowing operators to adjust each component separately according to specific fabric requirements without overwhelming complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adjustment device incorporates universal adjustment mechanisms that can be applied across multiple guide bars and knitting elements. The same basic adjustment principle with numbered eccentrics and scales can be used throughout the machine, providing consistent adaptability to different fabrics while maintaining operational simplicity through standardized procedures.

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

3Manufacturing precision

If trial-and-error adjustment is used, then optimal positioning can be achieved, but productivity and operational efficiency decrease

Engineering Contradiction:
Improveoptimal positioningVSAvoidoperational efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The adjustment device incorporates pre-numbered adjustment elements and pre-marked scales that allow operators to directly set optimal positions without trial and error. The eccentric elements are pre-configured with numbered positions corresponding to specific adjustment values, enabling operators to immediately achieve optimal positioning by simply selecting the correct number rather than testing multiple positions.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The adjustment device includes visual feedback mechanisms such as numbered indicators and scale markings that show the current adjustment position. This immediate feedback allows operators to verify their settings and achieve optimal positioning in a single adjustment action rather than through multiple trial and error cycles, significantly improving operational efficiency.

Inventive Principle:
Principle #23Feedback

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 enhances the efficiency of warp knitting machines by allowing non-specialized personnel to make precise adjustments quickly, reducing machine downtimes and ensuring consistent textile quality across different products.

Implementation Method 1

The bolt (4) is designed as an eccentric bolt and has a pin (6) arranged eccentrically to the axis of the bolt

Methodology Applied
Scientific EffectEccentric mechanism: Eccentric

Data Source

PatentEP4464830A1Warp knitting machine with adjustment device for knitting elements and method for adjusting the same
Publication Date: 2024.11.20 KARL MAYER STOLL R&D GMBH
  • EP4464830A1 patent drawingFigure 1~2
  • EP4464830A1 patent drawingFigure 3
  • EP4464830A1 patent drawingFigure 4

AI summary

A warp knitting machine with an adjusting device 1 for its working elements 2 and a method for adjusting the working tools 2 are described. The interacting working elements 2, which are mounted on the bar 3, are pivoted with respect to their distance from each other by means of driven levers 5, 14, 17. An eccentric bolt is provided for pivoting, which is detachably connected to the lever 5 and driven by a drive plunger 7. The adjusting device 1 is designed for a readable setting of an adjustment dimension E, E1, E2, E3 ... En from a first angular position to a second angular position relative to the lever 5. The adjustment dimension E, E1, E2, E3 ... En can be read via a scale 4.1 on the eccentric bolt and, optionally, also via a scale 4.2 on the adjusting device.