Mixer Assembly Bayonet Locking for Cartridge Alignment Under Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mixing assemblies face issues with secure connections between mixers and cartridges, particularly when handling high viscosity materials, and are unsuitable for uneven material ratios, leading to unintentional disconnection and misalignment.
Innovation Solution
A mixing assembly with a bayonet connection and alignment means, featuring a protrusion and recess system, ensures a secure and correct connection between the mixer and cartridge, allowing for alignment at a predetermined angle, even under high pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple plug-in connection is used to connect the mixer and cartridge, then the ease of operation is improved, but the reliability deteriorates under high pressure conditions
Solution Approach 1:
The connection means transitions from a static plug-in state to a dynamic locked state through rotational movement. The bayonet connection allows the mixer to be quickly inserted and then rotated to engage locking protrusions, providing both rapid operation and secure attachment under pressure.
Solution Approach 2:
The connection interface is divided into distinct functional elements: insertion path, rotation path, and locking protrusions. This segmentation allows the connection process to be broken into simple sequential steps (insert-rotate-lock) while ensuring reliable engagement through multiple discrete locking points.
2Device complexity
If a conventional connection means is used, then the device complexity is reduced, but the alignment precision between mixer and cartridge deteriorates
Solution Approach 1:
The alignment projection and recess are designed with asymmetric geometry that permits engagement in only one specific orientation. This asymmetric feature ensures precise alignment of the outlets with the mixing chamber without requiring complex alignment mechanisms, maintaining simplicity while achieving accurate positioning.
3Strength
If the mixer is designed to withstand high shear forces, then the strength is improved, but the device complexity increases
Solution Approach 1:
The connection means combines multiple functions into a single integrated structure: mechanical attachment, rotational locking, alignment positioning, and force transmission. By merging these functions into the bayonet connection assembly, the design achieves high strength to withstand shear forces without proportionally increasing overall device complexity.
Data Source
AI summary
A mixing assembly includes a mixer having a mixer housing, a mixing element having a first and second ends, first and second entry openings arranged at the first end and an outlet opening arranged at the second end of the mixer, a cartridge including a head part having first and second outlet openings, a connection device to connect the mixer to the head part of the cartridge such that the first and second outlet openings of the cartridge align with the inlet first and second openings of the mixer, the connection device configured as a bayonet connection, and an alignment element to align the mixer relative to the head part, the alignment element comprising an alignment projection and a corresponding alignment recess to engage with one another.