Continuous Feed Rotational Nozzle for Uniform Internal Coating
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Solution Overview
Problem
Existing surface treatment technologies face challenges in accessing and uniformly coating internal surfaces of deep and narrow spaces, such as industrial pipes, due to limited accessibility and nozzle direction issues, leading to uneven coating thickness, inadequate coverage, and potential defects.
Innovation Solution
A continuous feed active (CFA) rotational nozzle system is designed to address these challenges by featuring a rotatable nozzle with multiple output ports, a housing enclosure with a motor for rotating the nozzle, and a solid straight pipe for continuous material feed, allowing for precise and even coating distribution within narrow spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional nozzle is used for coating internal surfaces of deep and narrow spaces, then the nozzle can be inserted into the space, but the coating distribution becomes uneven and coverage is inadequate due to limited accessibility and nozzle direction issues
Solution Approach 1:
The nozzle is made rotatable rather than fixed, allowing it to dynamically change its orientation and direction. The rotation mechanism enables the nozzle to adapt its spray angle and reach different surfaces within narrow spaces, transforming a static limitation into a dynamic solution that improves both accessibility and coating uniformity.
Solution Approach 2:
The invention introduces rotational movement as an additional degree of freedom to the nozzle system. Instead of only linear insertion into narrow spaces, the nozzle can now rotate around its axis, adding a dimensional aspect that enables comprehensive coverage of internal surfaces from multiple angles, thereby solving the accessibility and uniformity problem.
2Productivity
If material is fed during rotational action, then continuous coating is achieved, but maintaining consistent layer thickness becomes challenging due to the complexity of synchronizing material feed with rotation
Solution Approach 1:
The system maintains continuous material feed throughout the rotational cycle, ensuring uninterrupted coating deposition. The material delivery mechanism is designed to operate continuously during rotation, eliminating gaps in the coating process and enabling sustained productivity while maintaining consistent layer formation.
Solution Approach 2:
The invention controls the relationship between rotation speed and material feed rate as adjustable parameters. By optimizing and synchronizing these parameters, the system achieves consistent layer thickness despite the dynamic rotational motion. The material feed rate is calibrated to match the rotational velocity, ensuring uniform coating deposition.
3Productivity
If a solid straight pipe is used for material feed through the motor, then continuous material supply is achieved during rotation, but the device complexity increases due to the integration of motor and piping system
Solution Approach 1:
The solid straight pipe is integrated directly through the motor structure, merging the material delivery function with the rotational drive mechanism. This combination eliminates the need for separate flexible hoses or complex routing, reducing overall system complexity while maintaining continuous material feed capability during rotation.
Solution Approach 2:
The solid straight pipe acts as an intermediary element that passes through the motor without interfering with its rotational function. The pipe design allows it to serve as both a structural support and a material conduit, mediating between the stationary material source and the rotating nozzle while simplifying the overall integration.
Data Source
AI summary
Embodiments of the present technology may include a system for coating surfaces. The system can include a rotatable nozzle. The rotatable nozzle can include a plurality of output ports. The plurality of output ports can dispense liquid material on surfaces. The system can also include a housing enclosure. The housing enclosure can include a motor. The motor can rotate the rotatable nozzle. The housing enclosure can also include a solid straight pipe passing through the motor. The solid straight pipe can continuously provide the liquid material to the rotatable nozzle concurrently with rotational action.