Flexible Grinding Product with Flattened Surface

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Solution Overview

Problem

Conventional flexible grinding products face issues with clogging due to abrasive dust accumulation, leading to reduced durability and non-uniform grinding performance, and challenges in achieving a smooth grinding surface for precise calibration.

Innovation Solution

A method involving an open knitted or woven fabric with a polymer coating applied to create flat areas, allowing for uniform grinding agent distribution and dust evacuation, while maintaining an open structure to prevent clogging, and using a smoothing element to flatten and cure the coating, ensuring precise and efficient grinding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a continuous grinding agent layer is applied to cover the surface, then grinding performance is improved, but clogging occurs due to abrasive dust accumulation

Engineering Contradiction:
Improvegrinding performanceVSAvoiddurability
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The grinding agent is applied as separate agglomerates rather than a continuous layer, creating discrete grinding points that prevent dust accumulation and clogging while maintaining effective grinding action

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cloth structure maintains an open porous configuration that allows grinding dust to pass through rather than accumulate on the surface, preventing clogging while preserving grinding effectiveness

Inventive Principle:
Principle #31Porous materials

2Reliability

If the cloth has an open structure with projecting loops, then dust removal is improved, but the grinding surface becomes irregular

Engineering Contradiction:
Improvedust removal capabilityVSAvoidgrinding uniformity
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The coating is applied selectively to specific areas of the cloth surface rather than uniformly across the entire surface, creating localized flat grinding zones while preserving the open structure in other areas for dust removal

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The coating is applied and cured before the grinding agent is applied, pre-flattening the cloth surface to ensure uniform grinding performance while maintaining the underlying open structure

Inventive Principle:
Principle #10Preliminary action

3Strength

If the back surface is irregular or fixed by impregnation, then structural integrity is improved, but calibration using the back surface becomes difficult

Engineering Contradiction:
Improvestructural integrityVSAvoidcalibration accuracy
Core Design Contradiction:
StrengthVSManufacturing precision

Solution Approach 1:

The coating is applied and cured in advance to create a flat calibration surface on the back side, enabling precise calibration operations while the impregnation provides structural support

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The coating is applied selectively to specific areas of the back surface to create flat calibration zones without compromising the overall structural integrity provided by the impregnation

Inventive Principle:
Principle #3Local quality

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 method enhances grinding performance by preventing clogging, achieving uniform and precise results, and improving durability through controlled coating and impregnation, allowing for efficient dust removal and flexible impregnation without surface failures.

Implementation Method 1

The coating is cured after step b), preferably with UV-radiation or heat.

Methodology Applied
Scientific EffectCuring: Photopolymerisation

Data Source

PatentEP4000807A1Flexible grinding product with flattened surface and method for manufacturing the same
Publication Date: 2022.05.25 MIRKA OY
  • EP4000807A1 patent drawingFigure 1~2
  • EP4000807A1 patent drawingFigure 3~4
  • EP4000807A1 patent drawingFigure 5A~5D

AI summary

A method of manufacturing a flexible grinding product comprises the steps: a) preparing an open cloth (C) of knitted or woven fabric; b) applying a coating (102) to one surface of the cloth (C), wherein the coated surface of the cloth (C) has one or more flat portions (100); c) applying a grinding agent (103) to the coated surface of the cloth (C). Further, a flexible grinding product has an open cloth (C), wherein a surface of the cloth (C) is provided with a coating (102) such that the coated surface has one or more flat areas which are at least partially provided with a grinding agent (103) .