Wheel Hub And Mounting Face Cleaning With Rotating Air Nozzle
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Solution Overview
Problem
Current methods for cleaning vehicle wheel rims after powder coating are inefficient, unsafe, and costly, as they either fail to effectively remove paint residues from critical areas without risking explosion or releasing pollutants into the atmosphere.
Innovation Solution
A device with multiple cleaning stations and robots using fireproof synthetic plastic brushes and a rotating nozzle system that applies compressed air to remove paint residues from wheel hubs and mounting faces, while maintaining a vacuum to prevent paint release, and an additional system for cleaning the brushes themselves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If metal brushes are used to clean powder paint residues, then cleaning efficiency is improved, but the risk of sparks and explosion increases
Solution Approach 1:
The patent replaces metal brushes that generate sparks through mechanical contact with a pneumatic system using compressed air jets. This substitution eliminates the mechanical friction that causes sparks while maintaining cleaning effectiveness through high-velocity air streams that blast away powder paint residues without contact.
Solution Approach 2:
The invention employs compressed air jets delivered through nozzles to clean the wheel rims. The pneumatic system uses high-pressure air streams to remove powder paint residues from the hub and mounting face, providing an explosion-safe alternative to mechanical brushing while achieving thorough cleaning results.
2Productivity
If compressed air jets are used to clean powder paint residues, then cleaning speed is improved, but the risk of releasing paint into the atmosphere and removing paint from painted areas increases
Solution Approach 1:
The patent introduces a suction device with a hood or shroud that creates a localized containment zone around the cleaning area. This flexible enclosure captures powder paint residues as they are dislodged by the compressed air jets, preventing their release into the atmosphere and directing them toward collection points.
Solution Approach 2:
The suction device acts as an intermediary between the compressed air jets and the atmosphere. It intercepts powder paint residues before they can escape, capturing them in a controlled manner and directing them to collection systems, thus mediating between the cleaning action and environmental protection requirements.
3Object-affected harmful factors
If soft brushes are used to clean powder paint residues, then explosion risk is reduced, but cleaning efficiency and brush lifespan decrease
Solution Approach 1:
The patent replaces soft brushes with a pneumatic cleaning system using compressed air jets. This eliminates the need for physical contact entirely, removing the explosion risk associated with mechanical friction while simultaneously improving cleaning efficiency through the high-velocity air streams that can quickly blast away powder paint residues.
Solution Approach 2:
The invention substitutes the mechanical brushing system with a pneumatic system. This replacement eliminates the limitations of soft brushes (low cleaning efficiency, short lifespan) while maintaining explosion safety by avoiding mechanical contact that could generate sparks.
4Device complexity
If manual brush cleaning is used, then equipment cost is reduced, but labor costs and maintenance time increase
Solution Approach 1:
The patent incorporates a suction device that automatically captures and removes powder paint residues during the cleaning process. This self-service mechanism eliminates the need for manual intervention to collect debris, reducing both labor time and maintenance requirements while integrating seamlessly with the compressed air jet system.
Solution Approach 2:
The invention merges the cleaning function (compressed air jets) with the debris removal function (suction device) into a single integrated system. This combination eliminates the need for separate manual cleaning steps, reducing overall maintenance time and operational complexity while maintaining relatively simple equipment architecture.
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 solution enables quick, safe, and efficient cleaning of wheel rims, preventing paint from being removed from unpainted areas and minimizing environmental impact by containing residues within the system.
Implementation Method 1
radially sending, from the inside towards the outside, compressed air against the bristles and against the entire inner lateral surface of the hub
Implementation Method 2
maintaining a vacuum to prevent paint release
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Cleaning wheel rims (2), wherein residues of powder paint are removed by a cleaning station (5); an annular mounting face (4) and at least part of an inner lateral surface (36) of a hub (3) of the wheel rim (2) are engaged by rotating annular brushes (11, 33) having bristles (12, 35) made of a synthetic plastic material, while compressed air is radially sent from the inside towards the outside against the bristles and against the inner surface of the hub by means of a first nozzle (14), which is made of a synthetic plastic material, is provided with radial holes (19), is progressively axially inserted in the hub (3) and is caused to rotate on itself, more air than the one fed to the nozzle (14) being sucked from the casing (6); after having removed the wheel rim, the brushes (11, 33) are cleaned by means of compressed air.