Selective Cleaning Program Using 3D Scan-Based Foreign Matter Detection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cleaning methods often require unnecessary cleaning of all target portions, leading to prolonged cleaning times and inefficiencies, especially when only a small number of portions contain foreign matter.

Innovation Solution

A cleaning method and apparatus that utilize a particle beam to scan an object, compare scan data with a 3D model to identify foreign matter, and create a customized cleaning program to clean only the necessary target portions, using a nozzle selection, retraction, and cleaning target portion sections to avoid interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the jet collides with all target portions sequentially, then all target portions are cleaned, but the cleaning time becomes longer

Engineering Contradiction:
Improvecleaning completenessVSAvoidcleaning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The cleaning program is segmented into multiple partial programs, each corresponding to a specific target portion. The control device selects and executes only the relevant partial programs based on foreign matter detection, rather than executing all programs sequentially. This segmentation enables selective cleaning of only affected areas, reducing overall cleaning time while maintaining completeness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies different cleaning strategies to different target portions based on their actual condition. By detecting foreign matter locations and creating customized cleaning programs for each affected area, the system transitions from uniform treatment of all target portions to localized quality cleaning, optimizing time efficiency without compromising cleaning reliability.

Inventive Principle:
Principle #3Local quality

2Reliability

If the nozzle moves to clean all target portions, then complete cleaning is achieved, but the nozzle may interfere with the cleaning machine or object

Engineering Contradiction:
Improvecleaning completenessVSAvoidnozzle interference
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The control device performs preliminary detection of foreign matter and creates a customized cleaning program before executing cleaning operations. This preliminary planning phase identifies the precise locations of target portions and pre-calculates safe nozzle trajectories, allowing the nozzle to reach cleaning areas without interfering with the cleaning machine or object during execution.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The control device acts as an intermediary between the nozzle and the object, mediating the cleaning process through intelligent program generation. It translates the cleaning objectives into a sequence of controlled nozzle movements, selecting appropriate paths that avoid direct interference while still achieving complete cleaning of identified target portions.

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 method and apparatus efficiently clean only the portions with foreign matter, reducing unnecessary cleaning and shortening the overall cleaning time.

Implementation Method 1

scanning a structure of the object by transmitting a particle beam through the object

Methodology Applied
Scientific EffectParticle beam transmission: X-Ray

Data Source

PatentEP3725427B1Cleaning method and cleaning apparatus
Publication Date: 2025.11.19 SUGINO MACHINE
  • EP3725427B1 patent drawingFigure 1
  • EP3725427B1 patent drawingFigure 2
  • EP3725427B1 patent drawingFigure 3

AI summary

The present invention provides a cleaning method and a cleaning apparatus capable of omitting cleaning of a target portion that does not need to be cleaned. The object (17) is cleaned by scanning the structure of the object (17) by transmitting a particle beam through the object (17), extracting a foreign matter (33i) by comparing the obtained scan data (33e) of the structure of the object (17) with a 3D model (33b) of the object (17), specifying the cleaning portion that is a target portion (33c) including the foreign matter (33i), and executing a partial program (33h) for cleaning the cleaning portion from the entire program (33f) for cleaning all the target portions (33c).