Automated Painting System with Rotating Workpiece Holding

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Solution Overview

Problem

Manual painting processes face challenges in controlling painted material thickness and achieving stable material utilization, leading to waste and health risks due to airborne paint particles and dust.

Innovation Solution

A painting system comprising a conveying mechanism, a holding and rotating mechanism, and a robot with a nozzle that sprays paint onto a workpiece while rotating it, allowing for controlled paint thickness and incorporating a vacuum system to contain and clean dust.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual painting is used, then flexibility and simplicity are maintained, but paint thickness control and material utilization stability deteriorate

Engineering Contradiction:

Improvepainting operation simplicityVSAvoidpaint thickness control

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent replaces manual painting operations with an automated robot system that uses computer-controlled spray nozzles to apply paint. This substitution of mechanical/manual system with an automated electromechanical system enables precise control of paint thickness while maintaining operational simplicity through automation programming.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The painting system incorporates sensors and control systems that monitor paint application in real-time and provide feedback to the robot controller. This feedback mechanism allows the system to automatically adjust spray parameters to maintain consistent paint thickness and material utilization.

Inventive Principle:

Principle #23Feedback

2Device complexity

If manual painting is used, then equipment complexity is reduced, but material utilization rate stability deteriorates

Engineering Contradiction:

Improvepainting equipment simplicityVSAvoidpaint material waste

Core Design Contradiction:

Device complexityVSLoss of substance

Solution Approach 1:

The patent replaces simple manual painting equipment with an automated robot painting system that precisely controls paint application. This increased equipment complexity enables significant reduction in paint material waste through controlled spray patterns, optimized travel speeds, and automated touch-up capabilities.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system dynamically adjusts painting parameters such as spray pressure, nozzle-to-surface distance, robot travel speed, and overlap patterns to optimize paint material utilization. These parameter changes enable consistent material application rates that minimize waste while ensuring complete coverage.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If painting is performed indoors with manual methods, then operational flexibility is maintained, but worker health safety and environmental control deteriorate

Engineering Contradiction:

Improvepainting process flexibilityVSAvoidairborne paint particles and dust

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces manual painting operations with an automated robot system that performs all painting tasks without human exposure to paint particles and dust. This substitution eliminates the harmful effects on worker health while maintaining painting process flexibility through programmable robot paths and parameters.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The robot system acts as an intermediary between the painting process and the human worker environment. By positioning the robot in a controlled or isolated painting station, the system mediates the separation between paint application hazards and worker safety, allowing indoor painting operations without exposing workers to harmful airborne particles.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 enables efficient and uniform painting with reduced material waste and improved worker safety by controlling paint application and containing dust, enhancing painting efficiency and quality.

Implementation Method 1

a robot having a nozzle adapted to spray a paint on the workpiece held by the holding and rotating mechanism

Methodology Applied

Scientific EffectSpray: Fluid Spray

Data Source

PatentUS11707755B2Painting system

Publication Date: 2023.07.25 KUNSHAN LEAGUE AUTOMECHANISM CO LTD

AI summary

A painting system includes a conveying mechanism adapted to convey a workpiece to be painted to a painting station, a holding and rotating mechanism mounted at the painting station and adapted to hold and rotate the workpiece, and a robot having a nozzle adapted to spray a paint on the workpiece held by the holding and rotating mechanism. The robot is configured to spray the paint onto the workpiece while the holding and rotating mechanism rotates the workpiece, spraying a layer of the paint on an outer surface of the workpiece.