Powder Dispenser Metering Assembly for Variable Volume Accuracy
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Solution Overview
Problem
Existing powder dispensers often struggle with accuracy, as they can only dispense volumes based on pre-defined compartments, and may experience clogging or clumping issues, leading to incorrect powder volumes for recipes.
Innovation Solution
A powder dispenser with a metering assembly comprising a rotor, first and second plates, and an engagement member, which rotates to engage and direct powder from a reservoir into a continuous slot, allowing for precise and variable volume dispensing based on user input or recipe requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pre-defined measuring compartments are used, then the device structure is simple, but the manufacturing precision and measurement precision are insufficient for accurate powder dispensing
Solution Approach 1:
The patent employs dynamic elements including a rotatable first plate with a slot that rotates to different positions, a movable engagement member that extends and retracts into the slot, and a rotatable second plate with openings. This dynamic configuration allows the metering assembly to adapt to different powder volume requirements by controlling the rotation position and engagement depth, thereby achieving precise powder dispensing without fixed compartment limitations.
Solution Approach 2:
The metering assembly is divided into multiple functional components: a first plate with a slot, an engagement member, and a second plate with openings. Each component performs a specific function in the powder metering process, allowing for independent optimization and precise control of powder flow and measurement, which resolves the contradiction between structural simplicity and measurement precision.
2Adaptability or versatility
If discrete measuring compartments are used, then the device complexity is low, but the adaptability for variable powder volumes is limited
Solution Approach 1:
The system uses dynamic control where the first plate rotates to different angular positions, the engagement member extends to different depths, and the second plate rotates to align different openings with the slot. This dynamic configuration enables the same structure to dispense variable powder volumes according to different recipe requirements, achieving high adaptability without requiring multiple fixed compartments.
Solution Approach 2:
The metering assembly is designed as a universal system where the combination of the rotatable first plate, adjustable engagement member, and rotatable second plate can accommodate various powder volume requirements. The same components serve multiple functions by changing their positions and configurations, eliminating the need for separate discrete compartments for different volumes.
3Reliability
If the powder is contained in fixed compartments, then the device structure is simple, but the reliability is reduced due to clogging and clumping issues
Solution Approach 1:
The design features a continuous slot in the first plate that allows uninterrupted powder flow from the reservoir through the metering assembly. The engagement member and rotating plates create a continuous path for powder movement, preventing powder from becoming trapped or stagnant in fixed compartments, thereby reducing clogging and clumping issues while maintaining consistent powder flow reliability.
4Measurement precision
If fixed volume compartments are used, then the ease of operation is high, but the measurement precision cannot be adjusted for different recipes
Solution Approach 1:
The system incorporates control mechanisms that monitor and adjust the rotation position of the first plate, the extension depth of the engagement member, and the rotation position of the second plate to achieve precise powder measurement. This feedback control allows the system to maintain measurement precision for different recipe requirements while automating the adjustment process to preserve ease of operation.
Data Source
AI summary
A powder dispenser generally includes a reservoir adapted to contain a powder, a rotor disposed within the reservoir, a plate, and an engagement member. The rotor is configured to rotate about an axis and engage the powder within the reservoir. The plate is positioned below the rotor and defines a slot configured to receive the powder as the rotor rotates about the axis. The plate is arranged to rotate relative about the axis. The engagement member is aligned with at least one opening and is configured to extend into the slot defined in the plate. The engagement member is configured to direct a volume of the powder from the slot into the at least one opening as the plate rotates. The volume of the powder is dispensed through the opening as the plate rotates.