Edge Milling Machine Dust Extraction
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Solution Overview
Problem
Existing edge milling machines require a large extraction hood, which worsens handling due to the space it occupies, making it difficult to maneuver, especially in confined applications.
Innovation Solution
The edge milling machine incorporates a dust guiding device with a compact design where the brake body actively participates in dust removal by delimiting the dust-guiding space, allowing for effective suction of dust directly next to the tool holder, using a combination of guide walls and a fan for efficient dust extraction, and includes a suction connection for a vacuum cleaner to facilitate easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a large extraction hood is used for dust removal, then dust extraction effectiveness is improved, but handling and maneuverability worsen due to increased space requirements
Solution Approach 1:
The dust extraction system is segmented into a compact dust guiding device with localized dust inlets positioned directly next to the tool holder, replacing the need for a large extraction hood. The brake body is segmented to form boundary walls that create a confined dust-guiding space, enabling targeted dust removal at the source without requiring extensive hood structure.
Solution Approach 2:
The invention transitions from a three-dimensional large-volume extraction hood to a two-dimensional compact dust guiding device that operates in a confined space. The brake body forms vertical boundary walls that laterally limit the dust-guiding space, effectively creating a compact dust extraction chamber that maintains effectiveness while minimizing spatial footprint.
2Ease of operation
If the dust-guiding space is minimized, then handling is improved, but dust extraction effectiveness may worsen due to reduced space for dust accumulation
Solution Approach 1:
A fan is integrated into the compact dust guiding device to generate strong suction flow that efficiently removes dust from the confined dust-guiding space. The pneumatic force compensates for the reduced space volume, ensuring effective dust extraction despite the minimized dust-guiding space. The fan creates sufficient negative pressure to draw dust particles through the compact configuration.
Solution Approach 2:
The invention changes the flow velocity parameter by accelerating the suction flow through the compact dust-guiding space. The guide walls and brake body configuration optimize airflow patterns to maintain high extraction efficiency within the minimized space. The dust inlet positioning and flow cross-sectional area are adjusted to ensure effective dust capture despite the compact dimensions.
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 design minimizes the space needed for dust removal, allowing for easier handling and operation, as the suction flow is accelerated, effectively extracting dust at a high flow rate without the need for a bulky extraction hood, improving ergonomics and operational ease.
Implementation Method 1
The dust-guiding space is bounded by the brake body forming a boundary wall, and the fan conveys dusty air out of the dust-guiding space
Implementation Method 2
The suction flow in the area of the edge milling tool is accelerated by the small flow cross-sections for the inflow of fresh air into the dust guide space, so that any dust that occurs is extracted at a high flow rate
Implementation Method 3
In cooperation with at least one guide wall or several guide walls of the dust guide device, the brake body delimits the dust guide space and enables the dust to be effectively conveyed away from the tool
Data Source
Figure 1
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AI summary
The invention relates to an edge milling machine (10) for milling a workpiece edge (89; 189) extending between a main side surface (88) and a secondary side surface (86; 186) of a workpiece (85; 185), in particular a section (90) of an edge banding strip (87; 187) projecting in front of the workpiece edge (89; 189), wherein the edge milling machine has a guide body (20), in particular a plate-like one, which has a main contact surface (31) for contact with the main side surface (88) of the workpiece (85; 185), and a drive motor (12) for rotary drive of a tool shaft (14), on which a tool holder (15) for an edge milling tool (40) is arranged and at the free end of which a support roller (45) rotatable with respect to the tool shaft (14) is arranged for support against the secondary side surface (86;186) is arranged, wherein the edge milling machine has a braking device with a brake element (65) for braking the support roller (45) and a dust guide device (50) for guiding dust away from the tool holder (15) towards a dust outlet channel (27; 127), wherein the dust guide device (50) has at least one guide wall (76) for delimiting a dust guide chamber (78) extending around the tool holder (15) and at least one dust inlet (36) of the dust outlet channel (27; 127) is arranged in the dust guide chamber (78). It is provided that the brake element (65) forms a boundary wall for delimiting the dust guide chamber (78) or that a dust outlet of the dust outlet channel (27;127) has a larger flow cross-sectional area or a flow cross-sectional area that is only a maximum of 30% smaller than the sum of all flow cross-sectional areas available for the flow of fresh ambient air into the dust guide chamber (78) when the workpiece (85; 185) is in contact with the main contact surface (31) for machining by the edge milling tool (40), or that the at least one dust inlet comprises a dust inlet (36) arranged on the guide body (20), or that the main contact surface (31) is located on the underside (22) of the guide body (20) and a dust outlet of the dust outlet channel (27; 127), in particular forming a suction port (24), is located on the top side (23) of the guide body (20).