Adjustable Stirring Blades for Uniform Article Coating
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Solution Overview
Problem
Existing coating apparatuses for granular articles, such as tablets or pills, face inefficiencies in adjusting to varying batch sizes and article properties, leading to suboptimal energy consumption, coating thickness, and operational time.
Innovation Solution
The apparatus features adjustable stirring blades that move relative to the drum's side wall, allowing for manual or automatic adjustment based on batch size and volume, ensuring optimal blade positioning and path alignment during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed blade positioning is used in the drum, then the device structure is simple, but the apparatus cannot adapt to varying batch sizes and article properties, leading to suboptimal coating efficiency
Solution Approach 1:
The blade positioning mechanism is made dynamic and adjustable, allowing the blades to be repositioned along the drum circumference according to batch size and article properties. This enables the apparatus to adapt to different coating requirements while maintaining optimal coating efficiency, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The adjustable blade positioning system allows the same apparatus to handle multiple batch sizes and article types effectively. The blades can be positioned to optimize stirring and coating distribution for small batches, large batches, or specific article geometries, making the device universally applicable across different coating scenarios.
2Manufacturing precision
If the blades are fixed relative to the drum wall, then the device complexity is low, but the coating thickness uniformity and energy efficiency deteriorate for different batch conditions
Solution Approach 1:
The blade positioning is made adjustable to dynamically optimize the blade-to-drum-wall distance based on batch size and article properties. This ensures uniform coating thickness distribution across different coating scenarios while maintaining reasonable device complexity through a straightforward adjustment mechanism.
3Productivity
If the blade position is adjusted for optimal coating, then coating efficiency and adaptability improve, but the device complexity and operational complexity increase
Solution Approach 1:
The blade positioning system incorporates an adjustment mechanism that allows operators to reposition blades along the drum circumference. This dynamic adjustment capability enables optimization of coating efficiency for different batch sizes while maintaining ease of operation through a user-friendly adjustment interface.
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
Enhances coating efficiency by optimizing energy use and coating thickness while adapting to varying batch conditions, providing a more versatile and efficient coating process.
Implementation Method 1
spraying the product or products with which said articles are to be coated
Implementation Method 2
the drum rotates and stirs the batch of articles to ensure a homogeneous coating in all the articles
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The present invention relates to an apparatus (100) for coating or encapsulating articles (2), comprising a rotating drum (3) with a side wall (31), the drum (3) being sized to contain and stir a batch of articles (2) to be coated during the rotation of the drum; a dispensing group (6) with at least one nozzle (7) for spraying a coating product on the articles (2) contained in the drum (3); and stirring blades (1) located inside the drum and that rotate with the drum, wherein said blades (1) are linked to the drum able to move with respect to the side wall (31) and the apparatus (100) comprising positioning means (8) for positioning the blades (1) that are configured to bring the blades closer or further away from said side wall (31) and that are manually or automatically adjustable, said adjustment affecting the position adopted by the blades with respect to the side wall (31) and consequently also the path that said blades follow about the axis of rotation of the drum when the drum rotates.