Eccentric Rotating Nozzle Frame for Dust-Free High-Pressure Cleaning
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Solution Overview
Problem
Conventional high-pressure water cleaning systems fail to achieve desired cleanliness, uniformity, and cost-effectiveness due to dust generation from rotation components, non-uniform cleaning trajectories, and complex structures, making them unsuitable for high-cleanliness applications like FPDs and semiconductor wafers.
Innovation Solution
A high-pressure water cleaning system with a common support frame and eccentrically rotating nozzles, where the drive components are external to the cleaning area, ensuring dust-free operation and uniform cleaning, and a simplified structure that reduces assembly time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rotation components are placed within the cleaning area to enable nozzle rotation, then cleaning capability is improved, but dust generation increases and cleanliness standard cannot be achieved
Solution Approach 1:
The patent extracts the drive components (motor, bearing, timing belt) from the cleaning area and places them in the support structure. Only the nozzle holder rotates within the cleaning area, while the complex drive mechanism remains outside the clean zone, eliminating dust generation from rotation components during cleaning operations.
Solution Approach 2:
The patent segments the cleaning system into two distinct parts: a cleaning area containing only the nozzle holder for dust-free operation, and a support structure containing all drive components. This segmentation allows the cleaning function to be isolated from the mechanical drive functions that generate dust.
2Area of stationary object
If multiple cleaning guns are arranged to clean objects, then cleaning coverage is improved, but structure complexity increases and assembly time increases
Solution Approach 1:
The patent merges multiple cleaning guns into a single integrated cleaning main body with a common support frame. Multiple nozzle holders are arranged on this shared structure, allowing simultaneous cleaning of multiple objects or large surfaces without requiring separate support structures for each cleaning gun, thereby reducing overall system complexity.
Solution Approach 2:
The common support frame serves multiple functions: it supports multiple nozzle holders, provides the rotating mechanism for all nozzles, and maintains the structural integrity of the entire cleaning system. This multi-functional design reduces the number of separate components needed.
3Ease of operation
If drive components are placed within the cleaning area, then nozzle rotation is enabled, but cleaning uniformity deteriorates due to non-uniform cleaning trajectories
Solution Approach 1:
The patent extracts the drive components from the cleaning area, allowing the nozzle holder to rotate purely for cleaning purposes without the interference of visible drive mechanisms. This enables uniform circular cleaning trajectories while maintaining operational simplicity, as the extracted drive components do not obstruct or interfere with the cleaning path.
4Ease of operation
If complex drive mechanisms are used to rotate nozzles, then cleaning capability is improved, but assembly time increases and cost increases
Solution Approach 1:
The patent extracts and simplifies the drive mechanism to essential components (motor, bearing, timing belt), removing unnecessary complexity. By placing these minimal drive components in the support structure rather than within the cleaning area, the system achieves reliable nozzle rotation with reduced assembly time and lower cost.
Solution Approach 2:
The patent segments the drive mechanism into discrete, easily assembled components in the support structure, separating the cleaning function from the drive function. This segmentation allows for modular assembly where the simplified drive components can be quickly installed without complicating the cleaning area design, thereby reducing total assembly time.
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 system achieves high cleanliness standards (10 to 100) with uniform cleaning strength, reducing the risk of damaging sensitive objects and lowering operational costs by eliminating internal dust-generating components and simplifying assembly processes.
Implementation Method 1
eccentric rotational shafts extending in a direction perpendicular to a surface of an extended plane of the support frame member or perpendicular to a surface of the object such that the support frame member is eccentrically rotatable
Implementation Method 2
a plurality of high-pressure water ejecting nozzles which are arranged on the surface of the support frame member to be equally spaced apart from each other and are directed to face the object
Implementation Method 3
high-pressure water ejecting nozzles which are arranged on the surface of the support frame member to be equally spaced apart from each other and are directed to face the object
Data Source
AI summary
A high-pressure water cleaning system includes a cleaning main body, a support frame member having a length which is larger than a width of an object, the support frame member being supported at extended end portions thereof at both sides by bearing units and eccentric rotational shafts such that the support frame member is eccentrically rotatable, the eccentric rotatable shafts being configured to rotate to cause the support frame member to perform rotational motion, a plurality of high-pressure water ejecting nozzles which are arranged on the surface of the support frame member to be equally spaced apart from each other and are directed to face the object, and a drive device configured to cause the eccentric rotational shafts to rotate. The high-pressure water ejecting nozzles are supplied with the high-pressure water and eject the high-pressure water to the object being moved at the constant speed while performing the rotational motion.