Multi-Component Paint Mixing System Using Inflatable Bladder Actuation
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Solution Overview
Problem
Existing systems for applying multi-component coatings, such as paint, face challenges in precise mixing and efficient dispensing, particularly due to the reactive nature of components which cure quickly, requiring careful operator attention and potential material waste.
Innovation Solution
A system comprising a spray gun with a nozzle and a reservoir chamber that houses separate paint components, using pressurized air and an inflatable bladder to expel components through a static mixer with baffles and an orifice plate for precise mixing and dispensing, allowing for adjustable mix ratios and disposable components for ease of use and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual mixing of multi-component paint is performed, then operator control over mixing process is maintained, but mixing precision and consistency deteriorate
Solution Approach 1:
The mixing system performs automatic metering and mixing of multiple paint components without requiring continuous operator intervention. The system self-regulates flow rates through controlled delivery mechanisms, automatically maintains proper mix ratios, and completes the mixing process without manual stirring or monitoring, thereby achieving high mixing precision while reducing operator attention requirements
Solution Approach 2:
The patent replaces manual mechanical mixing operations with an automated controlled delivery system that uses precision metering mechanisms (such as pumps or flow controllers) to deliver exact volumes of each component. This substitution of manual mechanical mixing with automated controlled delivery ensures consistent mixing ratios and eliminates variability introduced by manual operation
2Ease of operation
If multi-component paint is mixed in advance, then application convenience is improved, but paint components cure prematurely
Solution Approach 1:
The paint system stores multiple components separately in individual reservoirs until the moment of application. Each component remains isolated and stable in its own container, preventing premature curing reactions. Only at the point of use are the components delivered and mixed in the correct proportions, ensuring both application convenience and paint usability are maintained
Solution Approach 2:
The system prepares for application by having all components pre-measured and ready for delivery through the controlled delivery system. The components are positioned and metered in advance but not yet mixed, allowing the system to be ready for immediate application while preventing premature curing by keeping reactive components separate until the exact moment of mixing
3Loss of substance
If precise mixing ratios are maintained, then material waste is minimized, but system complexity increases
Solution Approach 1:
The controlled delivery system automatically meters and delivers precise volumes of each paint component based on pre-programmed ratios. The system self-regulates flow rates and mixing proportions without requiring manual calculation or measurement, minimizing material waste through precise delivery while managing complexity through automated control mechanisms that eliminate the need for manual precision techniques
4Loss of time
If reactive components are mixed quickly, then application timeliness is improved, but mixing thoroughness deteriorates
Solution Approach 1:
The system replaces manual mixing operations with an automated controlled delivery system that rapidly mixes components through precision metering and forced circulation. The automated system can achieve thorough mixing in seconds by controlling flow rates and mixing intensity, delivering both speed and thoroughness that cannot be achieved through manual mixing
Solution Approach 2:
The controlled delivery system maintains continuous flow and mixing action throughout the delivery process. Components are continuously delivered and mixed without interruption or pauses, ensuring thorough mixing is achieved in the shortest possible time. The continuous action prevents stagnant zones and ensures all portions of the paint are uniformly mixed before 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 precise and efficient mixing and application of multi-component coatings, minimizing waste and cost by ensuring accurate ratios and quick application, while allowing for easy setup and maintenance with disposable components.
Implementation Method 1
Pressure from an inflatable bladder expels the components under pressure
Implementation Method 2
the combined components are channeled into a mixing device that blends the components together just prior to being introduced into the nozzle
Implementation Method 3
air drawn from an air compressor feeds the spray gun to dispense the paint and actuates the bladder to expel the components
Implementation Method 4
a spray gun having a nozzle that dispenses the paint in a spray pattern
Data Source
AI summary
A system for applying coatings and more specifically paint coatings is provided that combines fluid stored in separate reservoir containers prior to expelling the mixture for application. The reservoirs may be comprised of collapsible and disposable bags that eject its fluid upon activation of an actuator or expanding bladder. The fluid components are combined and blended together in a mixer that is positioned between the reservoirs and a nozzle.