Coating Booth Wall Extraction for Uniform Powder Removal
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Solution Overview
Problem
Conventional coating booths are limited by ineffective excess powder removal at high booth heights, leading to powder spillage and increased downtime for color changes, and are not suitable for robotic operation due to restricted movement of coating robots.
Innovation Solution
A coating booth design with a vertically extending extraction channel and adjustable slot openings that ensures homogeneous airflow for efficient powder removal, allowing robotic operation and reduced downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional floor extraction systems are used in coating booths, then the system structure is simple, but the excess powder removal becomes ineffective at high booth heights leading to powder spillage
Solution Approach 1:
The invention transitions from horizontal floor extraction to vertical wall extraction by positioning extraction channels in the upper region of the booth walls. This dimensional change allows the extraction system to reach high areas where powder accumulation occurs, making the system effective for tall booths without increasing structural complexity
Solution Approach 2:
The extraction channels act as intermediary elements that bridge the gap between the coating area and the extraction system. By positioning these channels in the upper wall region, they serve as intermediaries to capture and remove excess powder from high areas that conventional floor-based systems cannot reach
2Adaptability or versatility
If the booth structure is modified to accommodate robotic operation, then robotic coating becomes possible, but the structural complexity increases
Solution Approach 1:
The booth structure is segmented into functional zones: a rectangular coating area and a converging robot access area. This segmentation allows the booth to accommodate robotic operation by creating dedicated access points while maintaining the simplicity of the main coating chamber structure
Solution Approach 2:
The invention adds a converging area in the top view that creates a three-dimensional access pathway for robots. This dimensional addition allows robotic arms to enter and operate within the booth without requiring complex structural modifications to the main booth framework
3Reliability
If the extraction channel flow cross-section is uniform, then the manufacturing is simple, but the airflow homogeneity is poor leading to ineffective powder removal
Solution Approach 1:
The extraction channel incorporates locally varied cross-sectional areas along its length, with the narrowest section positioned in the upper region. This local quality variation optimizes airflow distribution to achieve homogeneous extraction across the entire booth volume, while the gradual transition minimizes manufacturing complexity
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 design effectively removes excess powder across the entire booth height, enabling robotic operation and minimizing downtime for color changes without compromising coating quality.
Implementation Method 1
a airflow generated by an extraction device is effective for removing excess coating material from the interior of the coating booth
Implementation Method 2
The excess powder is then separated from the airflow by means of a cyclone separator
Data Source
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AI summary
The invention relates to a coating booth (1) for coating workpieces with coating material, in particular with coating powder, wherein the coating booth (1) is associated with a booth extraction system for the extraction of excess coating material generated during a coating process, particularly as required, wherein the coating material extraction system has at least one vertically extending extraction channel (2) which is or can be connected to a coating material separator system (3; 3.1, 3.2) in terms of flow.According to the invention, it is particularly provided that the vertically extending extraction channel (2) is in fluid communication with a coating area (5) of the coating booth (1) via two vertically extending slot openings (4), wherein an effective flow cross-section of the fluid connection provided by the two vertically extending slot openings (4) varies in particular continuously in the vertical direction of the extraction channel (2).