Battery-Powered Two-Component Applicator with Dynamic Mixer
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Solution Overview
Problem
Existing two-component substance application systems are limited in their suitability for small series production and the handicraft sector due to difficulties in mixing high proportion ratios, high viscosity at low temperatures, and short 'open time' for chemical processing, particularly in the handicraft sector.
Innovation Solution
A battery-operated application device with a dynamic mixer, featuring a tubular bag and rigid wall cartridge packaging, and an electric drive system that includes separate ejector rods for each component, along with a rotary mixer for precise mixing and efficient expulsion, reducing the need for mains power and enhancing handling flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If coordinate-controlled systems with pumps or pneumatic conveying devices are used, then mixing precision and application control are improved, but device complexity and suitability for small-scale applications worsen
Solution Approach 1:
The patent extracts the complex pump and pneumatic conveying systems from the application device, replacing them with a simple cartridge-based manual dispensing system. The two-component material is pre-packaged in separate cartridges that are inserted directly into the mixing chamber, eliminating the need for complex delivery mechanisms while maintaining mixing precision through the dynamic mixer design.
Solution Approach 2:
The patent employs disposable cartridges for each component instead of reusable tanks requiring complex pumping systems. Each cartridge is single-use, pre-filled with precise amounts of material, and discarded after use. This approach dramatically simplifies the device while maintaining precision, as each new cartridge ensures consistent material delivery without requiring complex control systems.
2Reliability
If high proportion ratios of components (30:1 or higher) are used, then material performance is improved, but mixing accuracy deteriorates
Solution Approach 1:
The patent applies local quality by providing different cartridge designs optimized for specific proportion ratios. Cartridges are manufactured with precise internal geometries and wall thicknesses that correspond to the required mixing ratios (e.g., 30:1, 10:1, 5:1). This local optimization ensures that each cartridge delivers the exact proportion of components needed, maintaining both material performance and mixing accuracy for high ratio systems.
Solution Approach 2:
The patent performs preliminary action by pre-calculating and pre-packaging the exact amounts of each component in the cartridges according to the required proportion ratios. The cartridges are manufactured with precise dimensions that encode the correct mixing ratio, eliminating the need for complex metering or measurement during application. This preliminary preparation ensures accurate mixing ratios are achieved simply by inserting the pre-configured cartridges.
3Quantity of substance
If removal force for high viscosity materials is increased, then material delivery capability is improved, but energy consumption and device complexity worsen
Solution Approach 1:
The patent segments the material delivery function into separate disposable cartridges for each component. Each cartridge is independently designed with its own ejection mechanism, allowing the materials to be delivered separately and mixed only at the point of application. This segmentation eliminates the need for a single high-power delivery system that would need to handle both high-viscosity components simultaneously, thereby reducing overall energy consumption.
Solution Approach 2:
The cartridge design incorporates self-service features where the cartridge structure itself facilitates material ejection. The cartridges are designed with specific wall thicknesses, opening mechanisms, and geometric features that enable the high-viscosity materials to be extruded with minimal additional force. The system uses the material's own pressure and the cartridge's mechanical design to assist in the ejection process, reducing the energy required from the delivery mechanism.
4Adaptability or versatility
If open time (pot life) is shortened for practical applications, then application flexibility is improved, but processing time and working window worsen
Solution Approach 1:
The patent implements periodic action through its multi-cartridge system that allows for staged mixing and application. The dynamic mixer enables batch mixing of small amounts of material that can be applied immediately, while additional cartridges remain available for subsequent mixing cycles. This periodic replenishment approach maintains optimal open time for each batch while providing continuous application capability, enhancing flexibility without sacrificing processing time for each individual mixing cycle.
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 enables precise and efficient mixing of two-component substances with reduced energy consumption and extended 'open time', suitable for various applications including vehicle replacement glazing, improving handling and flexibility in the handicraft sector.
Implementation Method 1
a rotor with rotor blades designed to generate a feed motion in conjunction with the mixing process
Implementation Method 2
a first ejection rod with an attached ejection piston for expelling the wet-reactive composition from the first packaging unit, and a second ejection rod with an ejection piston integrated into the second packaging unit
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An application system (1, 17; 21, 27) for two-component materials, comprising a moisture-reactive composition accommodated in a first packaging unit, a hardener component accommodated in a second packaging unit and a dynamic mixer (17; 27) which is designed for insertion into an applicator and for driving by the latter.