Elliptical Rotary Booth for Compact Leather Spray Coverage
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Solution Overview
Problem
Existing industrial rotary booths for leather spraying are either too large, requiring significant factory space, or they produce uneven coverage that affects product quality, while alternative designs are inefficient and complex.
Innovation Solution
A compact, elliptical-shaped rotary booth with distinct radii for main and auxiliary arcs, reducing non-operational path length and spray gun count, maintaining efficiency and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a circular rotary booth is used for leather spraying, then spraying efficiency and quality are improved, but the factory space required increases significantly
Solution Approach 1:
The patent applies asymmetry by changing the circular trajectory of the spray guns into an elliptical trajectory. The booth has an elliptical cross-section with distinct major and minor axes, causing the spray guns to follow an elliptical path rather than a circular one. This asymmetric geometry allows the booth to maintain effective spraying coverage while reducing the overall space requirement, as the elliptical shape fits more efficiently within limited factory areas compared to a circular configuration.
Solution Approach 2:
The patent utilizes dimensionality change by transitioning from a circular two-dimensional trajectory to an elliptical trajectory that exploits the third dimension more effectively. The elliptical path of the spray guns allows for optimized positioning above the conveyor belt, enabling better coverage with reduced radial distance. This dimensional optimization allows the booth to achieve similar spraying effectiveness in a more compact footprint, resolving the contradiction between productivity and space utilization.
2Area of stationary object
If the booth dimensions are reduced to save space, then space utilization improves, but spray coverage uniformity may deteriorate
Solution Approach 1:
The patent applies dynamics by making the spray gun positioning dynamic through rotational movement along the elliptical trajectory. The spray guns are mounted on a rotating carousel that moves them along the elliptical path, allowing continuous adjustment of their position relative to the conveyor belt. This dynamic positioning ensures that despite the reduced booth dimensions, the spray guns can maintain optimal distances and angles for uniform coverage throughout the elliptical cycle, preserving manufacturing precision while compacting the overall structure.
Solution Approach 2:
The patent utilizes parameter changes by optimizing the elliptical geometry parameters (major axis, minor axis, eccentricity) to achieve the best balance between compact size and spray coverage quality. By carefully selecting the elliptical parameters, the design ensures that the spray guns maintain appropriate operating distances and angles for uniform coverage. This parameter optimization allows the booth to be compact while still delivering consistent spray coverage, resolving the contradiction between reduced dimensions and coverage uniformity.
3Manufacturing precision
If more spray guns are installed to improve coverage, then spraying quality improves, but device complexity and cost increase
Solution Approach 1:
The patent applies universality by designing a multi-functional spray gun system where each spray gun performs multiple functions through the elliptical rotation. The spray guns are positioned at different locations on the elliptical trajectory and rotate to serve multiple coverage zones. This universal design allows a smaller number of spray guns to achieve comprehensive coverage that would otherwise require more guns, reducing device complexity while maintaining or improving spray coverage quality through the multi-functional operation of each gun.
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 booth achieves efficient, high-quality leather spraying with reduced dimensions, lower production costs, and improved space utilization, while maintaining operational efficiency and quality.
Implementation Method 1
spraying means arranged inside the supporting frame, adapted to deposit at least one fluid covering mixture in nebulized form on the leather
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
An industrial rotary booth (1 ) for the spraying treatment of the tannery leathers, comprising a supporting frame (2) which has an inlet (3), through which a leather (P) is carried into the box-like shell (2), which leather is subjected to a spraying treatment while lying on the upper surface of a conveyor belt adapted to be at least partially received inside said supporting frame (2) and to be advanced along a predetermined linear direction (W), and an outlet through which the leather (P) just treated is carried outside the box-like shell (2), and spraying means coupled to the supporting frame (2) inside which they are arranged, adapted to deposit a fluid covering mixture in nebulized form on said leather (P) advancing along the linear direction (W) while said spraying means are placed in rotation along a closed annular trajectory (T), so that the spraying means take the working condition at two main circumference arcs (4, 5) belonging to the closed annular trajectory (T) and lying above the conveyor belt, and the rest condition at two auxiliary circumference arcs (6, 7), which are distinct from the main circumference arcs (4, 5), belonging to the closed annular trajectory (T) and lying sideways on the outside of said conveyor belt. In particular, the radius of curvature (R1) of the main circumference arcs (4, 5) and the radius of curvature (R2) of the auxiliary circumference arcs (6, 7) take finite values different from zero and different from each one another.