Ejection Device Receptacle Stops for Cartridge Positioning
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Solution Overview
Problem
Existing ejection devices for cartridges are limited in varying mixing ratios of compounds, requiring different cartridges for different applications, which restricts the flexibility in dispensing compounds with diverse mixing ratios.
Innovation Solution
Incorporation of additional stops in the receptacle, including a spring element, to securely hold cartridges in specific positions based on their design, ensuring correct orientation and adaptation to different cartridge lengths and designs, preventing incorrect applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only one stop is provided in the receptacle, then the cartridge is held in a single fixed position, but the mixing ratio of dispensed compounds is limited and cannot be adapted
Solution Approach 1:
The receptacle is designed with multiple stops (first stop, second stop, and at least one additional stop) that can accommodate cartridges in different positions and orientations. This multi-functional design allows the same receptacle to dispense compounds with various mixing ratios by accepting cartridges configured for different ratios, thereby achieving adaptability without requiring multiple specialized receptacles.
Solution Approach 2:
The stopping mechanism is segmented into multiple independent stops rather than a single continuous constraint. The first stop engages with the mixer connection or housing, the second stop engages with a wall portion at a distance, and the additional stop provides intermediate positioning. This segmentation allows flexible combination of stops to achieve different cartridge positions for different mixing ratios.
2Adaptability or versatility
If multiple cartridges with different designs are used to achieve different mixing ratios, then the mixing ratio can be varied, but the device requires frequent cartridge changes and has limited flexibility
Solution Approach 1:
The system transitions from a static single-position receptacle to a dynamic multi-position receptacle with multiple stops. This allows the receptacle to adaptively hold cartridges in different positions depending on which stop combination is engaged, providing operational flexibility without requiring physical changes to the receptacle structure itself.
Solution Approach 2:
The cartridge design includes features (mixer connection, wall portions) that automatically engage with the appropriate stops based on the cartridge's orientation and position. The system self-regulates to ensure correct positioning through the interaction between cartridge features and multiple stops, reducing the need for manual intervention to achieve proper alignment.
3Reliability
If the receptacle is designed to hold cartridges in a single position, then the structure is simple, but incorrect applications cannot be prevented
Solution Approach 1:
The multiple stops are positioned and dimensioned to prevent incorrect cartridge insertion before the dispensing process begins. The geometric arrangement of stops creates mechanical interference that physically blocks misaligned cartridges from being inserted, thereby preventing incorrect applications in advance rather than detecting or correcting them during operation.
Solution Approach 2:
The stop mechanism provides tactile and mechanical feedback to the user during cartridge insertion. When a cartridge is incorrectly positioned, it cannot engage all necessary stops simultaneously, creating a noticeable mechanical conflict or gap that signals to the user that the cartridge is not properly aligned, thereby preventing incorrect application.
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
Enables the dispensing of compounds with adaptable mixing ratios by ensuring correct cartridge positioning, reducing the need for multiple cartridges and minimizing incorrect applications, while allowing easy adaptation to various cartridge types and lengths.
Implementation Method 1
The at least one additional stop preferably has a spring element which, depending on the design of the cartridge, acts upon a wall portion of the cartridge that is inserted into the receptacle and holds this cartridge in the position for dispensing the compound with the ejection mechanism.
Data Source
AI summary
An ejection device (11) for cartridges containing multi-component compounds has an ejection mechanism (12) and a receptacle (16) for the cartridge, with the receptacle (16) being limited on the front side by a head plate (17) and on the rear side by a stop plate (18) and in order to hold the cartridge in a first position, a first stop (21) provided at the head plate (17) and a second stop (22) provided in the area of the stop plate (18), and a third stop (23) in order to hold the cartridge in a further position.