Head Exchange Control Using Barcode Recognition

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Solution Overview

Problem

Existing component mounting devices face issues with correctly recognizing and exchanging different types of nozzle heads, leading to potential improper handling and control during the head exchange process, which can result in inappropriate operations.

Innovation Solution

A component mounting device equipped with memory means for storing correspondence relationships between identification codes and head types, along with control means that read and look up identification codes to recognize the head type before exchanging, allowing for appropriate head exchanging operations by controlling the head holding and movement mechanisms based on the recognized type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If head exchanging is performed without recognizing head type, then exchange operation speed is improved, but head holding and control accuracy deteriorates

Engineering Contradiction:

Improvehead exchange speedVSAvoidhead holding accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The system performs preliminary recognition of the head type by reading the identification code from the storage section before the actual head exchange operation. This allows the control means to prepare appropriate holding and control parameters in advance, ensuring accurate handling during the exchange process while maintaining efficient operation speed.

Inventive Principle:

Principle #10Preliminary action

2Manufacturing precision

If head type recognition is performed before exchange, then head holding accuracy is improved, but exchange operation time increases

Engineering Contradiction:

Improvehead holding accuracyVSAvoidhead exchange time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The system replaces complex mechanical head type identification methods with an optical/electronic reading mechanism that scans identification codes. This substitution enables rapid, non-contact recognition of head types, achieving accurate identification without significantly increasing exchange time.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If generic head holding method is used, then device complexity is reduced, but adaptability to different head types deteriorates

Engineering Contradiction:

Improvehead holding mechanism complexityVSAvoidhead type compatibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The system implements dynamic adjustment of holding and control parameters based on the recognized head type. The control means automatically modifies operational parameters according to the specific head type identified, enabling a single holding mechanism to adaptively handle multiple head types without requiring complex dedicated mechanisms for each type.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10813260B2Component mounting device

Publication Date: 2020.10.20 FUJI CORP

AI summary

A component mounting device stores a correspondence relationship between identification codes and head types in an HDD. A CPU of the component mounting device reads a two-dimensional bar-code of a head which is stored in a head storage area using a bar-code reader when exchanging a first head which is held in a head holding body of a head unit for a second head which is stored in the head storage area. The CPU looks up the identification code included in the two-dimensional bar-code in the correspondence relationship which is stored in the HDD and recognizes the head type which is stored in the head storage area. Subsequently, the CPU controls the head holding body of the head unit to perform head exchanging operations according to the recognized head type.