Brush Holder Plug-in Mechanism for Deburring Machine

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Solution Overview

Problem

Conventional deburring machines require cumbersome and time-consuming replacement of worn machining elements, which are often expensive and prone to incorrect mounting, leading to mechanical stress and increased operational risks.

Innovation Solution

The use of special brush holders with a plug-in strap mechanism that allows for easy, tool-free attachment and detachment from a circulating drive belt, featuring a form-fitting connection with automatic locking, reducing the need for additional fastening means like screws and enabling quick and secure replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional screw-fastened brush holders are used, then the brushes can be securely attached to the drive belt, but the replacement process becomes time-consuming and complex

Engineering Contradiction:
Improvesecure attachment of brushesVSAvoidreplacement time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The brush holder is divided into separate components: a holder body and a brush unit. This segmentation allows the brush unit to be independently removed and replaced without replacing the entire holder assembly, significantly reducing replacement time while maintaining secure attachment through the holder body's locking mechanism

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The brush holder incorporates a dynamic locking mechanism with spring-loaded lugs that automatically engage with slots in the drive belt. This dynamic system provides secure attachment during operation while allowing quick release when needed, resolving the contradiction between secure attachment and easy replacement

Inventive Principle:
Principle #15Dynamics

2Reliability

If multiple fastening means like screws are used, then the brush holders can be securely fixed, but the device complexity and manufacturing cost increase

Engineering Contradiction:
Improvesecure fixationVSAvoidnumber of fastening components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts and eliminates the need for separate fastening components like screws, nuts, and clips. Instead, the brush holder body itself is designed with integrated locking features (lugs and slots) that provide secure fixation without additional fastening means, thereby reducing device complexity and manufacturing cost

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The fastening function is merged into the brush holder body structure itself. The holder body incorporates lugs that engage with slots in the drive belt, combining the structural support and fastening functions into a single integrated component, eliminating the need for separate fastening means

Inventive Principle:
Principle #5Merging (Combining)

3Quantity of substance

If a wide machine with long belts is used, then more processing units can be accommodated, but the replacement complexity and time increase proportionally

Engineering Contradiction:
Improvenumber of processing unitsVSAvoidreplacement complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The processing units are segmented into modular brush holders that can be independently replaced. This allows operators to replace only the worn brush units rather than entire long belts or assemblies, making the replacement process manageable even in wide machines with many processing units

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The brush holders are pre-configured with standardized locking mechanisms and mounting features. This preliminary design standardization allows for quick identification and replacement of individual units without requiring complex disassembly procedures, reducing overall replacement complexity in machines with multiple units

Inventive Principle:
Principle #10Preliminary action

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 reduces the time required for brush replacement, enhances mechanical reliability, and allows for cost-effective production of disposable brush holders, minimizing the risk of loose or detached units during operation.

Implementation Method 1

The edge of the recess of the mounting bracket forms a latching lug, and the latching tongue has a recess into which this latching lug snaps when the end position is reached

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2792450B1Machine for deburring
Publication Date: 2015.12.30 ARKU MASCHENBAU
  • EP2792450B1 patent drawingFigure 1
  • EP2792450B1 patent drawingFigure 2
  • EP2792450B1 patent drawingFigure 3a

AI summary

A machine for deburring sheet metal parts has an endlessly circulating drive belt on which a plurality of brushes are arranged side by side. The brushes comprise a brush holder (6) which carries an abrasive bristle (7). They are attached to the drive belt by means of a brush holder (5), which is preferably designed as a flat L-shaped mounting bracket (8). The brush holder (6) is made of plastic in one piece and can be slid onto a locking tab of the brush holder (5) in a form-fitting manner. Upon reaching its end position, the brush holder (6) automatically locks into place with the brush holder (5).