Component Mounting Machine Splice Defect Diagnosis

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Solution Overview

Problem

Existing component mounting machines face challenges in accurately determining the cause of suction abnormalities during splicing work, leading to production interruptions and reduced productivity, as existing technologies do not effectively diagnose splicing work defects.

Innovation Solution

A component mounting machine equipped with a feeder device that includes a splice portion detecting section, passing determination section, suction abnormality determination section, work defect determination section, and abnormality display section, which detects the splice portion, determines its passing state, and identifies suction abnormalities to diagnose splicing work defects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If splicing work is performed frequently to maintain production, then productivity is maintained, but the risk of splicing defects and production interruption increases

Engineering Contradiction:

Improveproduction continuityVSAvoidsplicing work reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system performs preliminary detection of splice portions before they cause suction abnormalities. The splice portion detecting section detects the splice portion at a detection position, and the passing determination section determines whether it is in a passing state, allowing operators to address potential issues before production is interrupted

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system establishes a feedback loop where detection results are continuously monitored and fed back to operators. When a splice portion is detected or a suction abnormality occurs, the system provides feedback through the abnormality display section, enabling real-time response and correction of splicing issues

Inventive Principle:

Principle #23Feedback

2Ease of operation

If operators perform splicing work manually, then flexibility is maintained, but detection precision of splicing defects is insufficient

Engineering Contradiction:

Improvesplicing operation flexibilityVSAvoiddefect detection precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system introduces an intermediary detection mechanism between the manual splicing operation and the suction process. The splice portion detecting section acts as an intermediary that detects splice portions and communicates their status to the control section, which then determines whether suction abnormalities are caused by splicing defects

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces manual inspection with an automated detection mechanism. Instead of relying on operators to visually inspect splice portions, the splice portion detecting section uses detection means (such as sensors or cameras) to automatically identify and report splice portion status, improving detection precision

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If suction abnormalities occur during splicing, then production is interrupted, but the cause is difficult to identify

Engineering Contradiction:

Improveproduction throughputVSAvoidcause analysis difficulty

Core Design Contradiction:

ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The system segments the detection function into distinct components: the splice portion detecting section detects splice portions, the passing determination section determines their state, and the suction abnormality determination section identifies suction issues. This segmentation allows clear differentiation between splicing defects and other suction abnormalities

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The control section acts as an intermediary that receives detection results from the splice portion detecting section and suction abnormality determination section, processes this information, and provides comprehensive feedback to operators about the cause of suction abnormalities, making diagnosis easier

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10881041B2Component mounting machine, feeder device, and splicing work defect determination method

Publication Date: 2020.12.29 FUJI CORP

AI summary

A component mounting machine includes: a feeder device; a component transfer device; a splice portion detecting section detecting a splice portion further on a near side than a supply position of the feeder device; a passing determination section determining if the splice portion is in the passing state in which the splice portion is positioned within a passing area; a suction abnormality determination section determining the suction abnormality state in which a suction nozzle is not able to suck a component; a work defect determination section determining the splicing work defect when the suction abnormality state is determined and the splice portion is determined to be in the passing state; and an abnormality display section that performs dedicated abnormality display when the splicing work defect is determined.