Automated Cleaning Member Exchange for Viscous Fluid Printers

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Solution Overview

Problem

Conventional printing apparatuses require manual exchange of cleaning members, which is labor-intensive and inefficient.

Innovation Solution

A printing apparatus with a cleaning section, a cleaning member moving section, and an exchange control section that enables automatic exchange of the cleaning member by moving it between a cleaning position and an exchange position, using a mechanism with an attachment member and a loading member to facilitate unloading and loading, and a support member to manage the exchange process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual exchange of cleaning member is performed, then operator control and flexibility are maintained, but operator workload increases and exchange efficiency decreases

Engineering Contradiction:
Improvecleaning member exchange efficiencyVSAvoidoperator workload
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The cleaning member moving section enables the system to automatically perform cleaning member exchange without operator intervention. The exchange control section coordinates the moving section to autonomously complete the entire exchange process, making the system self-servicing for this repetitive task.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical operation of cleaning member exchange with an automated mechanical system. The cleaning member moving section uses mechanical mechanisms (such as conveyors, grippers, or robotic arms) to automatically transport and install cleaning members, substituting human physical labor with automated mechanical action.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If cleaning member exchange is performed manually, then system simplicity is maintained, but operational efficiency and productivity are reduced

Engineering Contradiction:
Improveprinting apparatus operational efficiencyVSAvoidcleaning member exchange system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cleaning member moving section is designed as a multi-functional module that can handle multiple cleaning members of different types. The exchange control section provides universal control capabilities that can manage various exchange scenarios, making the added complexity serve multiple purposes and justify the investment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The cleaning member exchange function is segmented into distinct modular components: the cleaning member moving section for physical manipulation and the exchange control section for coordination. This segmentation allows the complexity to be distributed and managed independently, reducing the burden on any single component and facilitating easier maintenance and upgrades.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If automatic cleaning member exchange is implemented, then operator workload is reduced and productivity improves, but device complexity increases

Engineering Contradiction:
Improvecleaning member exchange easeVSAvoidcleaning member moving section complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The exchange control section serves as an intermediary between the automated moving section and the cleaning members. It translates high-level exchange commands into specific control signals for the moving section, abstracting the complexity away from the operator while maintaining ease of use through simple interface commands.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3549766B1Printing apparatus and printing system
Publication Date: 2021.03.24 FUJI CORP
  • EP3549766B1 patent drawingFigure 1
  • EP3549766B1 patent drawingFigure 2
  • EP3549766B1 patent drawingFigure 3

AI summary

A printing apparatus including: a cleaning section including a cleaning member and configured to perform cleaning processing of a screen mask used in printing of a viscous fluid onto a print target; a cleaning member moving section configured to perform at least one of moving the cleaning member to and from a cleaning position and an exchange position, and unloading and loading of the cleaning member; and an exchange control section configured to control the cleaning member moving section to perform cleaning member exchange processing of exchanging the cleaning member.