Paint Application Device with Solvent Vapor Control
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Summary
Problems
Existing paint application devices for water-dilutable paints face issues with viscosity changes due to solvent evaporation, leading to unreliable spraying and potential blockages, especially when trying to maintain thin layers and precise application quantities.
Innovation solutions
A paint application device equipped with a humidification system that supplies solvent vapor to the paint circuit, allowing for precise control of viscosity without the need for stirring, combined with a cooling device to condense and incorporate the vapor, and a viscosity meter for feedback control.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the paint is circulated through the spray head and pump, then the paint application process continues, but solvent evaporates and viscosity increases
Why choose this principle:
The patent changes the physical state of the solvent from liquid to vapor phase by heating it to a predetermined temperature. This parameter change allows the solvent to be introduced into the paint circulation system without requiring mechanical mixing, thereby maintaining viscosity control while enabling continuous operation.
Principle concept:
If the paint is circulated through the spray head and pump, then the paint application process continues, but solvent evaporates and viscosity increases
Why choose this principle:
The patent replaces the mechanical stirring system with a thermal field system. Instead of using motors and stirrers to mix solvent into the paint, the invention uses heated solvent vapor that automatically mixes with the circulating paint through thermal convection and diffusion, eliminating mechanical complexity while achieving the same mixing effect.
Application Domain
Data Source
AI summary:
A paint application device equipped with a humidification system that supplies solvent vapor to the paint circuit, allowing for precise control of viscosity without the need for stirring, combined with a cooling device to condense and incorporate the vapor, and a viscosity meter for feedback control.
Abstract
The color applicator has a color reservoir (10) which is connected with a color coating device (18) over the supply lines (14,16). A color discharge equipment (24) is provided for returning the excess color from the region of the color coating device into the color reservoir. A moistening device (30) is provided for increasing the air humidity in the region of the color coating device and/or in the color reservoir. The cooling devices (34,36) is arranged in the direction of conveyance of the color coating device. An independent claim is included for method for adjusting the viscosity of a color for a color coating device.