Dosage Dispensing Device Changing Mechanism
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Solution Overview
Problem
Existing dosage-dispensing devices require a large surface area and clear space, making them inefficient in laboratory settings where space is limited, and they struggle to maintain a short distance between the outlet orifice and the target container to prevent contamination, especially with toxic or reactive substances.
Innovation Solution
A compact dosage-dispensing device with a changing mechanism that allows horizontal and vertical movement of the receiving device relative to the base frame, enabling efficient loading and unloading of dosage-dispensing units or functional units while maintaining a short distance to the target container, and incorporating a draft shield for precise dispensing and minimizing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a holder for several dosage-dispensing units is arranged on an upper horizontal plane and connected to the base frame, then the device structure is simplified and ease of manufacture is improved, but the distance from the outlet orifice to the target container increases leading to contamination risks
Solution Approach 1:
The holder is designed to be movable relative to the base frame, enabling dynamic adjustment between a first position (optimized for manufacturing simplicity) and a second position (optimized for reducing contamination by minimizing distance to target container). This dynamic reconfiguration allows the system to adapt its structure based on operational requirements.
Solution Approach 2:
The solution introduces vertical movement of the holder relative to the base frame, transitioning from a static two-dimensional arrangement to a three-dimensional configuration. By moving the holder vertically between different heights, the system can optimize both the structural simplicity and the dispensing precision simultaneously.
2Object-affected harmful factors
If the holder is made height-adjustable to reduce distance to target container, then contamination is reduced, but the combined weight of dosage-dispensing units affects changing speed and increases vibrations
Solution Approach 1:
The holder's height is made dynamically adjustable rather than fixed, allowing the system to optimize the distance to target container when needed while maintaining structural stability. The movable design enables quick transitions between positions without requiring permanent height adjustments that would slow down unit changes.
Solution Approach 2:
The system separates the weight-bearing function from the height-adjustment function. The base frame provides stable support for the target container, while the holder can be independently positioned at optimal heights. This segmentation allows the holder to move quickly between positions without being constrained by the total weight of dosage-dispensing units.
3Area of stationary object
If space below the changing mechanism is utilized, then surface area usage is improved, but the changing mechanism becomes more complex
Solution Approach 1:
The solution utilizes the vertical dimension by allowing the holder to move between different heights above the base frame. This vertical mobility enables the system to use the space below the holder more effectively without requiring complex horizontal expansion or additional mechanisms, thereby improving surface area utilization with minimal increase in device complexity.
Data Source
AI summary
A device for dispensing a dosage includes a base frame, at least one device for receiving any dosage-dispensing unit or functional unit that is compatible to be inserted therein, a holder and at least one drive mechanism. The holder has at least one holding position for a dosage-dispensing unit or functional unit. A weighing cell arranged on a lower horizontal plane of the base frame includes a load receiver to receive a target container. A changing mechanism enables the receiving device to be moved horizontally relative to the base frame. This horizontal shift allows a dosage-dispensing unit or functional unit to be interchanged between the holding position and the receiving device. The changing mechanism also permits the receiving device, together with the drive mechanism, to be moved vertically with regard to the base frame.