Rotary Atomizing Head Cleaning via Detachable Structural Component
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Solution Overview
Problem
Existing rotary atomizing heads face challenges with paint stagnation and cleaning difficulties due to reliance on O-rings for fixation, which can lead to sealing issues and paint residue, and require disassembly for color changes, making them costly and inefficient.
Innovation Solution
A rotary atomizing head design featuring a structural component with paint discharge openings and cleaning openings, detachable via pawls, and a spoon-cut recess, eliminating the need for O-rings and allowing for internal cleaning without disassembly, while preventing bubble formation through a shoulder dam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If O-rings are used for fixation of the structural component, then the structural component can be securely fixed to the atomizing head body, but paint stagnation and residue occur due to sealing issues
Solution Approach 1:
The invention removes the O-ring sealing component from the fixation system. By eliminating the O-ring, the patent prevents paint stagnation and residue that occur in sealing areas, while maintaining secure fixation through an alternative mechanism involving a groove and protrusion structure that does not create paint-trapping sealed spaces.
2Ease of operation
If the structural component is made detachable for cleaning, then color changes can be facilitated, but disassembly is required which increases time and cost
Solution Approach 1:
The invention incorporates cleaning openings in the atomizing head body that allow cleaning liquid to be supplied to the structural component while it remains installed. This preliminary design feature enables cleaning to be performed without disassembly, saving time and reducing operational complexity while still allowing the structural component to be detached when color changes are required.
3Productivity
If paint discharge openings are formed in the structural component, then paint flow is improved, but bubble formation may occur without proper design
Solution Approach 1:
The invention strategically positions paint discharge openings in specific locations on the structural component and incorporates a shoulder dam feature at the paint supply end. This localized design improves paint flow efficiency through the openings while the shoulder dam prevents bubble formation by controlling the paint supply mechanism, addressing both productivity and harmful factor concerns through targeted structural modifications.
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
Ensures effective paint flow and easy cleaning, preventing paint stagnation and residue, facilitating color changes without disassembly, and reducing manufacturing costs by eliminating O-rings and enhancing paint application quality.
Implementation Method 1
an atomizing head body (2) having an inner circumferential surface (2b) on which paint flows under the centrifugal force
Data Source
AI summary
A rotary atomizing head enables cleaning by decomposing from the atomizing head, and enables internal cleaning without decomposing to individual components when paint is changed to a new one of another color. A structural component has a front wall acting as a hub, side wall extending rearward from an outer circumferential perimeter of the front wall to make a circumferentially continuous plane, legs each having a pawl and a bottom wall. The structural component is detachably mounted in a central concavity of an atomizing head body. A bottom wall of the structural component has formed a spoon-cut recess. The central concavity has an inclined circumferential wall, and the side wall of the structural component has an inclined outer circumferential surface complementary with the circumferential wall of the atomizing head body to get in substantial contact with the circumferential wall throughout the entire area of the outer circumferential wall.