Spaced Bristle Tuft Structure for Low-Residue Brush Rollers

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Solution Overview

Problem

Existing brush rollers used for forming three-dimensional wood grain textures on flooring materials face issues with slow-curing substance residues adhering to bristle head segments, leading to reduced functionality and necessitating frequent disassembly for cleaning, which decreases production efficiency.

Innovation Solution

A bristle tuft design with a spacing segment between bristles, featuring a bending or enlarged structure, and a quick-disassembly mechanism for the brush roller, allowing easy detachment from the production line.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a brush roller with radially arranged bristles is used to remove slow-curing substance, then the surface structure edges become sharp and resemble natural wood grain, but the bristle head segments accumulate residues and lose functionality requiring frequent disassembly

Engineering Contradiction:
Improvesurface structure edge sharpnessVSAvoidbristle functionality continuity
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The bristle is divided into multiple segments: a root segment for mounting, a spacing segment with spacing structures (protrusions or grooves) between adjacent bristles, and a head segment for wire drawing. This segmentation prevents residue accumulation by maintaining spacing between bristle head segments while preserving the sharp edge effect.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the brush roller operates continuously for production, then productivity is maintained, but residue adhesion on bristles increases over time reducing effectiveness

Engineering Contradiction:
Improvecontinuous production capabilityVSAvoidwire drawing effectiveness
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The spacing structures on the spacing segment create automatic spacing between adjacent bristles during rotation, preventing residue accumulation without requiring external intervention or frequent disassembly for cleaning, thus maintaining continuous production capability.

Inventive Principle:
Principle #25Self-service

3Reliability

If frequent disassembly for cleaning is performed, then bristle functionality is restored, but production downtime increases

Engineering Contradiction:
Improvebristle functionalityVSAvoidproduction downtime
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The spacing structures are pre-designed into the bristle structure during manufacturing, creating built-in residue prevention capabilities that eliminate the need for frequent disassembly and cleaning operations during production.

Inventive Principle:
Principle #10Preliminary action

4Manufacturing precision

If bristles are closely arranged for complete surface coverage, then wire drawing completeness improves, but residue accumulation between bristles increases

Engineering Contradiction:
Improvesurface coverage completenessVSAvoidresidue accumulation
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

Different segments of the bristle have different functions: the root segment provides mounting, the spacing segment with spacing structures prevents residue accumulation locally between bristles, and the head segment performs wire drawing. This local differentiation allows close arrangement for complete coverage while preventing residue buildup.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4699492A1Bristle tuft, brush roller having bristle tuft, and method for detaching brush roller
Publication Date: 2026.02.25 HANGZHOU PRINT FLOORING TECHNOLOGY CO LTD
  • EP4699492A1 patent drawingFigure 1~2
  • EP4699492A1 patent drawingFigure 3~4
  • EP4699492A1 patent drawingFigure 5~6

AI summary

A bristle tuft, a brush roller with the bristle tuft, and a disassembly method of the brush roller, used in flooring production, particularly in the manufacture of printed flooring with three-dimensional wood grain textures on the surface. The bristle tuft comprises a plurality of bristles gathered into a tuft, wherein at least one bristle includes: a general root segment for mounting on a roller body, a general head segment extending in a direction perpendicular to the rotation axis of the roller body, and a spacing segment disposed between the general root segment and the general head segment, used to space apart at least one adjacent bristle to form a separated state except for the general root segment, the spacing segment having a spacing structure. The brush roller with the bristle tuft comprises: a roller body having a rotation axis; a roller sleeve for rotatably mounting the rotation axis and provided with an outer fixing member; and a suspension component for slidably mounting the roller sleeve, configured with an inner fixing member for fixing the outer fixing member.