Bulk Material Dosing Drawer with Elastic Housing Walls for Tightness
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Solution Overview
Problem
Existing dosing devices for beverage powders suffer from inefficiencies in maintaining tightness between the dosing drawer and housing, leading to oxidation and humidity issues, which affect beverage quality and require frequent cleaning.
Innovation Solution
A dosing device with a housing design that constrains its lateral walls to expand vertically, creating a clamping engagement with the drawer, ensuring tightness without hindering the sliding movement, and allowing for easy manufacturing and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drawer is designed to slide easily in the housing, then the ease of operation is improved, but the tightness between the drawer and housing deteriorates
Solution Approach 1:
The housing transitions from a static structure to a dynamic one through the elastic lateral walls that can expand and contract. When the drawer is inserted, the walls expand to provide tight clamping; when the drawer is removed, the walls contract to allow easy access and cleaning. This dynamic adaptation resolves the contradiction between maintaining tightness during operation and enabling easy access for cleaning.
Solution Approach 2:
The internal dimensions of the housing are changed dynamically through the expansion and contraction of the elastic lateral walls. The internal height and width increase when the drawer is present to ensure tight clamping, and decrease when the drawer is removed to facilitate easy insertion and removal. This parameter change allows the housing to adapt its tightness level based on operational needs.
2Reliability
If the drawer is tightly clamped in the housing, then the tightness is improved, but the ease of operation deteriorates
Solution Approach 1:
The elastic lateral walls provide dynamic clamping force that adjusts based on drawer position. When the drawer is in the metering position, the walls are expanded and provide strong clamping for tightness. When the drawer needs to be moved or removed, the walls can contract, reducing the clamping force and facilitating easy operation. This dynamic adjustment resolves the contradiction between tight clamping and ease of operation.
3Device complexity
If the housing is made as a single piece, then the device complexity is reduced, but the ease of manufacture deteriorates
Solution Approach 1:
The housing is segmented into functional zones through the incorporation of elastic lateral walls with constriction zones. While the housing remains a single molded piece, the elastic sections allow the structure to be formed in one injection molding process without requiring assembly of multiple parts. The segmentation is functional rather than structural, maintaining manufacturing simplicity while achieving the desired elastic behavior.
4Reliability
If the drawer height is larger than the housing internal height, then the tightness is improved through clamping, but the device complexity increases
Solution Approach 1:
The lateral walls of the housing are designed as flexible elastic structures that can deform to accommodate the drawer. These flexible walls create the clamping action through their elastic recovery, eliminating the need for complex mechanical clamping mechanisms. The flexibility of the shells provides the necessary tightness while maintaining a relatively simple overall structure.
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 solution effectively prevents air and moisture from reaching the powder, maintaining beverage quality and reducing the need for frequent cleaning, while allowing for efficient production and handling of the dosing unit.
Implementation Method 1
lesdites parois latérales du logement sont extensibles verticalement de manière élastique
Data Source
Figure 1
Figure 2a~2b
Figure 3~4a
AI summary
The invention concerns a device for storing, metering and dispensing bulk material, said device comprising : - a container (1) for storing the bulk material, and - a dosing unit (2) comprising : - a housing (3), - a drawer (4) able to slide longitudinally in and out of said housing (3) through the front end (34) of the housing between a metering position and a dispensing position respectively, said drawer comprising a bottom wall (41), a top wall (42), and a metering cavity (43), wherein the two lateral walls (33a, 33b) of the housing are vertically constricted.