Rotatable Edge Milling Tool Dust Extraction

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Solution Overview

Problem

Existing edge milling devices require multiple machines and tools to process all edges of a panel, leading to increased costs and installation space due to their stationary extraction hoods, which can only process one workpiece edge at a time.

Innovation Solution

The device employs two edge milling tools arranged below or above a gap between panels, allowing simultaneous processing of opposite edges with rotatable suction hoods that adapt to the workpiece edges, reducing the need for multiple machines and ensuring optimal dust and chip removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If stationary extraction hoods are used for edge milling tools, then dust and chip removal is effective for one edge at a time, but four separate machines are required to process all edges of a panel

Engineering Contradiction:
Improvedust and chip removalVSAvoidnumber of machines and tools
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines multiple edge milling tools and their extraction hoods into a single integrated machine. The extraction hoods are arranged to surround a central processing area where panels can be positioned, allowing all four edges to be processed by tools mounted on the same machine structure, thereby reducing the need for four separate machines.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single machine is designed with universal capability to process all four edges of panels through multiple milling tools and rotatable extraction hoods. The system can adapt to different edges and orientations, making one machine perform the function of four separate machines while maintaining effective dust and chip removal for each edge.

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

2Object-generated harmful factors

If stationary extraction hoods are used for edge milling tools, then dust and chip removal is effective, but installation space is doubled

Engineering Contradiction:
Improvedust and chip removalVSAvoidinstallation space
Core Design Contradiction:
Object-generated harmful factorsVSArea of stationary object

Solution Approach 1:

The patent merges multiple extraction hoods and milling tools into a single compact machine structure. The hoods are arranged to overlap or surround a central processing zone, allowing all edges to be processed within a smaller footprint than four separate machines would require, thus reducing installation space while maintaining dust and chip removal effectiveness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The extraction hoods are designed to nest or overlap around a central processing area. The hoods can be arranged concentrically or in a compact configuration where one hood partially contains or overlaps another, maximizing space utilization and minimizing the overall installation footprint while ensuring all edges remain accessible for processing.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Productivity

If extraction hoods are made rotatable around milling tools, then all edges of a panel can be processed by two tools, but the device complexity increases

Engineering Contradiction:
Improveedge processing capabilityVSAvoidmechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The extraction hoods are made rotatable around the milling tools, transforming from static to dynamic components. This rotational capability allows the hoods to follow and maintain optimal positioning relative to different edges of panels as they are processed, enabling two tools to efficiently handle all four edges through coordinated rotation and movement.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotatable extraction hoods automatically position themselves relative to the workpiece edges during processing. As panels are fed through the machine or repositioned, the hoods rotate to maintain engagement with the active cutting zone, reducing the need for complex external positioning mechanisms and allowing the system to self-adjust during operation.

Inventive Principle:
Principle #25Self-service

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 configuration allows all edges of a panel to be machined using only two tools, optimizing economic efficiency and dust removal by adapting the extraction hoods to the workpiece edges, thus reducing operational and maintenance costs while minimizing installation space.

Implementation Method 1

the suction hoods of both edge milling tools are arranged rotatably around the milling tools... so that all edges of a panel can be machined with only two milling tools and milling dust can be completely extracted at all times

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP4442418B1Edge milling device and method for edge milling
Publication Date: 2025.09.03 WEMHOENER SURFACE TECHNOLOGIES GMBH & CO KG
  • EP4442418B1 patent drawingFigure 1
  • EP4442418B1 patent drawingFigure 2
  • EP4442418B1 patent drawingFigure 3~5

AI summary

An edge milling device with an edge milling tool (1) with a milling tool (20) and a dust extraction hood (3) with an engagement slot (6) for workpiece edges (12; 13; 22; 23) of a plate (8; 9; 10) is provided, as well as a method for plates which operate very economically with optimized dust and chip removal, which is achieved by arranging two edge milling tools (1; 2) on transverse guides at the gaps (7) of two plates (8; 9; 10) and by allowing a workpiece front edge (12) of a rear plate (9) and a workpiece rear edge (22) of a front plate (8) to be machined in opposite directions, and by arranging the dust extraction hoods (3) to be rotatable, and by allowing the edge milling tools (1; 2) to be locked during plate transport and the engagement slots (6) of the dust extraction hoods (3) to be rotatable so that all workpiece edges (12; 13; 22; 23) can be machined by two edge milling tools (1; 2) and milling dust can be permanently and completely extracted.