Powder Attachment Control for Uniform Food Surface Coating
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Solution Overview
Problem
Existing powder attachment devices struggle to evenly and attach powder to the desired area of the surface of the food product.
Innovation Solution
A device and method that includes a conveyor for conveying a food product, a powder supplying mechanism for supplying a rotating body, and a control device for controlling and changing a rotational speed of the rotating body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the rotational speed of the rotating plate is increased to attach powder to the lower inclined surface, then powder attachment to the lower inclined surface is improved, but air flow becomes faster and causes already attached powder to peel off
Solution Approach 1:
The rotating plate rotates in alternating directions (first rotation and second rotation in opposite directions) to periodically change the direction of air flow and powder throwing. This periodic action allows the lower inclined surface to be covered from multiple directions, improving powder attachment uniformity while preventing air flow from causing powder peeling by alternating the flow direction.
Solution Approach 2:
The system changes the rotational speed and rotation direction as parameters to control powder attachment. By alternating between first and second rotations with different directions and speeds, the system optimizes powder deposition on the lower inclined surface while controlling air flow effects to prevent powder peeling.
2Quantity of substance
If the lower rotating plate is disposed close to the conveying surface, then powder scattering along the conveying surface is improved, but air pockets are caused due to air flow generation
Solution Approach 1:
The alternating rotation directions create periodic changes in air flow patterns. During the first rotation, air flow moves in one direction, and during the second rotation, air flow reverses. This periodic action prevents persistent air pockets from forming between the lower rotating plate and conveying surface, allowing powder to be scattered effectively along the conveying surface while maintaining contact.
Solution Approach 2:
The system uses dynamic rotation direction changes to adapt to the spatial relationship between the lower rotating plate and conveying surface. By alternating rotation directions, the system dynamically adjusts air flow patterns to prevent air pocket formation and maintain effective powder scattering along the conveying surface.
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 device and method can effectively attach powder to a broad range of the surface of the food product.
Implementation Method 1
a rotating body (a surface of a flat rotating plate or a rotating brush), and throwing the powder toward the food product due to rotations of the rotating body
Data Source
AI summary
A powder attachment device and method for attaching powder to a desired range of a food product are provided. The powder attachment device (1) for attaching powder (11) to a surface of a food product (10) according to the present invention includes a conveyor (5) with a conveying surface (5B) for conveying the food product; and at least one rotating body (3A, 3B) disposed on both sides of the conveying surface. The rotating body is configured to throw powder (11) toward the food product, which is conveyed by the conveying surface, by rotations of the rotating body. The rotating body is configured to allow its rotational speed to be repeatedly changed while the powder is thrown.