Automated Paint Removal for Masking Devices

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Solution Overview

Problem

Existing methods for removing powder-coated paint from masking devices like plugs and caps are not cost-effective or automated, making future reuse difficult.

Innovation Solution

An automated paint removal apparatus using pressurized water sprays from nozzles to clean masking devices, with a support base that moves and rotates to ensure continuous cleaning, and a drying station for inspection and reuse preparation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If chemical stripping or scraping methods are used to remove paint from masking devices, then paint removal is achieved, but the process is not cost-effective and cannot be automated

Engineering Contradiction:

Improveautomation of paint removalVSAvoidcost-effectiveness of paint removal process

Core Design Contradiction:

Extent of automationVSEase of manufacture

Solution Approach 1:

The patent employs a high-pressure water spray system to remove paint from masking devices. A pump delivers water at pressures sufficient to strip powder-coated paint, and the water is directed through nozzles onto the masking devices as they pass through the cleaning chamber. This hydraulic approach replaces manual chemical stripping and scraping, enabling automation while maintaining cost-effectiveness through the use of water instead of expensive chemicals and equipment.

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Productivity

If manual paint removal processes are used, then paint can be removed from masking devices, but the process is time-consuming and reduces productivity

Engineering Contradiction:

Improvethroughput of masking device cleaningVSAvoidtime required for paint removal

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The system continuously cleans masking devices as they move through the apparatus on a conveyor belt. The masking devices pass through a cleaning chamber where high-pressure water sprays remove paint in real-time, eliminating the need for batch processing or stopping the production line. This continuous operation maximizes productivity by cleaning masking devices inline without interrupting the overall manufacturing process.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The paint removal process is performed immediately after the masking devices are used in the powder coating operation, before they are stored or reused. By implementing an inline cleaning system, the masking devices are cleaned while still on the production line, preventing paint accumulation and eliminating the need for later manual cleaning or disposal, thus saving time and maintaining high productivity.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If high-pressure water spray is used to clean masking devices, then paint removal efficiency is improved, but water consumption and energy use increase

Engineering Contradiction:

Improvepaint removal efficiencyVSAvoidenergy consumption of water spray system

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The system uses a pump to deliver water at elevated pressures, changing the pressure parameter of the water to enhance its cleaning capability. The high-pressure spray creates a more forceful impact on the paint surface, improving removal efficiency. The pressure is optimized to be sufficient for paint removal while avoiding excessive energy consumption, and the water flow rate is controlled to balance cleaning effectiveness with water and energy usage.

Inventive Principle:

Principle #35Parameter changes

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

Facilitates efficient and cost-effective removal of powder-coated paint from masking devices, enabling their reuse in future paint processes by providing a continuous and automated cleaning process.

Implementation Method 1

A pressurized stream of water is sprayed from a spray nozzle disposed in the spray enclosure and is directed toward at least one of the masking devices supported at the support base

Methodology Applied

Scientific EffectPressurized fluid spray: Fluid Spray

Implementation Method 2

spraying a pressurized stream of water at a desired velocity that removes paint from an exterior surface

Methodology Applied

Scientific EffectImpact force: Impact Force

Data Source

PatentUS10610900B2Apparatus and system for cleaning paint masking devices

Publication Date: 2020.04.07 J SQUARED INNOVATIONZ

AI summary

A paint removal apparatus for cleaning paint from masking devices includes a support base having a plurality of engagement features that are each configured to securely engage at least one paint masking device. A spray nozzle is aimed in a fixed direction toward the support base and configured for spraying a pressurized stream of water at a desired velocity that removes paint from an exterior surface of at least one of the masking devices engaged at the support base. The support base is configured to successively move the masking devices engaged at the engagement features into the pressurized stream of water, such as to provide a generally continuous cleaning operation of masking devices. During movement or rotation of the support base, an exposed portion of the support base may extend from a spray enclosure for removing cleaned plugs from and loading painted plugs onto such an exposed portion.