Oblique Spray Device Coating for Complex Workpiece Geometries
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Solution Overview
Problem
Existing coating booths with vertically and horizontally arranged spray devices have a complex structure, limiting the ability to coat workpieces from all sides effectively, especially for complex geometries, requiring manual recoating.
Innovation Solution
The arrangement includes spray devices with adjustable oblique spray directions, detachable extensions, and a guide system allowing longitudinal movement, enabling comprehensive coating of workpieces from multiple angles with electrostatic charging and encapsulated supply lines to prevent contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vertically and horizontally arranged spray devices are used to coat workpieces from all sides, then coating completeness is improved, but device complexity increases
Solution Approach 1:
The spray device is positioned at an oblique angle (15° to 75°) relative to the horizontal guide direction, adding a vertical dimension to the coating process. This oblique arrangement allows a single spray device to coat multiple surfaces of the workpiece simultaneously, achieving comprehensive coating without requiring multiple vertically and horizontally arranged devices.
2Manufacturing precision
If multiple spray devices are added to coat complex geometries, then coating quality is improved, but manufacturing cost increases
Solution Approach 1:
The spray device with oblique positioning and longitudinal movement capability serves multiple functions: it can coat the front surface, side surfaces, and angled surfaces of workpieces with complex geometries. This multi-functional design eliminates the need for multiple specialized spray devices, thereby reducing manufacturing costs while maintaining high coating quality.
3Manufacturing precision
If spray devices are positioned close to the workpiece for detailed coating, then coating precision is improved, but system stability decreases
Solution Approach 1:
The spray device is designed with longitudinal movement capability along the guide, allowing it to dynamically adjust its position relative to the workpiece. This dynamic positioning enables the spray device to maintain optimal coating precision at different stages of the coating process while the guide structure provides overall system stability during movement.
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
Facilitates efficient, automatic coating of workpieces from all sides, reducing the need for manual recoating and minimizing contamination, while maintaining a simpler and more stable system design.
Implementation Method 1
at least one spray device (2) with a spray nozzle (3), via which the coating material can be dispensed in a main spray direction
Implementation Method 2
a high-voltage cascade circuit is accommodated or can be accommodated in the main body of the spray device (2), which high-voltage cascade circuit serves for the electrostatic charging of the coating material dispensed or to be dispensed by the spray device (2)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to an arrangement (1) for preferably automatically coating objects with a coating material, in particular with coating powder. The arrangement (1) has at least one spray device (2) with a spray nozzle (3) through which the coating material can be dispensed in the direction of a main spray direction. Furthermore, an extension (4) associated with the at least one spray device (2) is provided, wherein an end region of the extension (4) facing the spray device (2) is preferably detachably connected to an end region of the spray device (2) facing away from the spray nozzle (3). The arrangement (1) also has a guide (5) preferably extending in a horizontal direction, over which the extension (4) with the spray device (2) connected to the extension (4) is longitudinally movable in the direction of extension of the guide (5) relative to the object to be coated.According to the invention, it is particularly provided that the spray device (2) with the spray nozzle (3) is designed such that the main spray direction of the spray nozzle (3) deviates from the extension direction of the guide (5) by a predetermined or definable angle.