Powder Dispenser Auger and Screen for Uniform Distribution
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Solution Overview
Problem
Existing powder dispensing devices are inefficient in ensuring even and consistent distribution of powder, particularly in applications requiring precise coating of items, and often fail to operate effectively in high humidity conditions.
Innovation Solution
A powder dispensing device comprising a container with a dispensing aperture, a conduit with an auger and motor for moving powder, and a dispensing screen or brush for uniform distribution, allowing for precise metering and efficient dispensing of powder onto items, even in high humidity environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a simple container with dispensing aperture is used, then the device structure is simple, but the powder distribution is uneven and inconsistent
Solution Approach 1:
The dispensing system is segmented into multiple functional components: a container with dispensing aperture, a conduit with receiving aperture, an auger mechanism with flighting, and a screen. This segmentation allows each component to perform a specific function (storage, transport, metering, filtering) that collectively achieves uniform powder distribution while maintaining reasonable structural complexity
Solution Approach 2:
The auger acts as an intermediary mechanism between the container and the dispensing screen. It receives powder from the container, meters it through controlled rotation, and delivers it uniformly through the screen, thereby mediating the transition from simple storage to precise distribution
2Manufacturing precision
If powder is dispensed directly from container aperture, then the dispensing process is simple, but the powder is not evenly distributed
Solution Approach 1:
The auger performs preliminary metering and positioning of the powder before it reaches the dispensing screen. By pre-metering the powder in controlled increments through auger rotation, the system ensures uniform distribution is achieved before the powder is finally dispensed, making the overall process more reliable despite added complexity
3Productivity
If a conduit with auger is added for powder transport, then the powder can be metered and distributed evenly, but the device complexity increases
Solution Approach 1:
The auger mechanism serves multiple functions simultaneously: it transports powder from the container, meters the powder in controlled amounts through its rotation, and delivers it to the dispensing screen. This multi-functionality increases productivity by combining several operations in one mechanism, justifying the added structural complexity
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 ensures even and efficient distribution of powder, providing multiple points of sifting for consistent application, suitable for applications like seed treatment, and can be integrated with conveyor systems for automated dispensing.
Implementation Method 1
An auger is positioned in the conduit and a motor is operationally coupled to the auger for moving the powder to the dispensing aperture
Data Source
AI summary
A powder dispensing assembly is provided for evenly and efficiently metering and dispensing a powder for a desired purpose such as coating a plurality of items with the powder. The assembly includes a container configured for holding a powder. The container has a dispensing aperture. A conduit is coupled to the container and has a receiving aperture in environmental communication with the dispensing aperture of the container. Thus, the conduit is configured to receive the powder dispensed through the dispensing aperture. The conduit includes a dispensing opening configured for passing the powder from the conduit. An auger is positioned in the conduit and a motor is operationally coupled to the auger for moving the powder to the dispensing aperture.