Powder Fluidization Tank Structure for Uniform Coating Boundaries
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Solution Overview
Problem
Conventional powder coating devices experience an increase in amplitude in the axial direction as the distance from the axis line in the horizontal direction increases, leading to uneven coating and a diffuse boundary between coated and uncoated areas.
Innovation Solution
The powder coating device incorporates a powder fluidization tank with a bottom member featuring spacers between the first and second plate members, coupled with a vibrator and an elastic support member to maintain stability and control amplitude.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the distance from the axis line in the horizontal direction increases, then the coverage area of the powder coating device increases, but the amplitude in the axial direction increases causing uneven coating
Solution Approach 1:
The patent applies local quality by providing multiple spacers at different positions (central portion and outer peripheral portion) of the bottom member, with each spacer having potentially different dimensions. This allows localized adjustment of plate spacing to compensate for the amplitude increase at greater radial distances, maintaining uniform coating quality across the entire coverage area.
Solution Approach 2:
The patent changes the physical parameters of the spacers (dimensions, material properties, elastic modulus) to control the spacing between the first and second partition plates. By adjusting these parameters, the system compensates for the amplitude increase at different radial positions, thereby maintaining consistent pore blockage rates and coating uniformity across the coverage area.
2Quantity of substance
If the amplitude in the axial direction increases, then the powder fluidization may improve, but the blockage rate difference between central and outer peripheral pores increases causing radial flow
Solution Approach 1:
The patent implements local quality by positioning spacers at both the central portion and outer peripheral portion of the bottom member, allowing different local spacing configurations. This compensates for the radial variation in amplitude, maintaining uniform pore blockage rates across different radial positions and preventing unwanted radial powder flow while preserving adequate fluidization.
Solution Approach 2:
The patent creates equipotential conditions by adjusting the spacer dimensions and positions to equalize the effective spacing between partition plates at different radial positions. This compensates for the amplitude gradient, ensuring that the pore blockage rates remain consistent across the fluidization tank, thereby eliminating the potential difference that causes radial flow.
3Area of stationary object
If the boundary between coated and uncoated areas becomes diffuse, then the coating coverage may increase, but the coating precision and definition deteriorate
Solution Approach 1:
The patent applies local quality through strategically positioned spacers that maintain consistent pore blockage rates at different radial positions. This prevents the diffuse boundary formation by ensuring uniform powder distribution characteristics across the entire coating area, thereby maintaining sharp, well-defined boundaries between coated and uncoated regions while preserving full coverage.
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
This configuration effectively suppresses the increase in axial amplitude, even at greater horizontal distances from the axis line, resulting in a more uniform coating process with reduced radial flow and improved boundary definition.
Implementation Method 1
the coupling support member includes an elastic member
Implementation Method 2
a vibrator coupled to the first plate member
Implementation Method 3
the vibrator body may include a vibration motor having an eccentric rotation shaft
Data Source
AI summary
Provided is a powder coating device including a powder fluidization tank including a bottom member having a plurality of spacers interposed between a first plate member and a second plate member, a fixing member to which the powder fluidization tank is fixed, a coupling support member coupling and supporting the first plate member to the fixing member, and a vibration mechanism coupled to the first plate member, wherein the coupling support member includes an elastic member.