Application Nozzle Timing Control to Cut Tact Time and Leakage

Solution Overview

Problem

Existing liquid agent application apparatuses face issues such as increased tact time and potential liquid leakage due to a fixed valve-on timing, leading to inefficiencies and operational troubles.

Innovation Solution

A liquid agent application apparatus with a movable application nozzle and valve that allows for adjustable valve-on timing control, enabling flexible supply start timing settings by an operator or control device to optimize application processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a fixed valve-on timing is used, then the control is simple, but the tact time increases and liquid leakage occurs

Engineering Contradiction:

Improvecontrol complexityVSAvoidtact time

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent applies dynamics by making the valve-on timing adjustable rather than fixed. The control device can dynamically set the timing based on actual application needs, allowing optimization of the balance between control simplicity and productivity. This resolves the contradiction by enabling adaptive control that prevents both overtightening (which causes leakage) and undertightening (which increases tact time).

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of valve-on timing from a fixed value to an adjustable parameter. By allowing the timing to be modified based on liquid agent properties and application requirements, the system can optimize performance without increasing overall control complexity. This parameter adjustment resolves the contradiction between simple control and high productivity.

Inventive Principle:

Principle #35Parameter changes

2Stability of the object's composition

If a fixed valve-on timing is used, then the system is stable, but liquid agent leakage occurs due to residual pressure

Engineering Contradiction:

Improvetiming stabilityVSAvoidliquid leakage

Core Design Contradiction:

Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent implements feedback by allowing the control device to monitor and adjust valve-on timing based on actual application conditions. This feedback mechanism enables the system to maintain stability while preventing liquid leakage caused by residual pressure. The adjustable timing ensures that the valve closes at the optimal moment, eliminating harmful leakage without sacrificing timing stability.

Inventive Principle:

Principle #23Feedback

3Ease of operation

If a fixed valve-on timing is used, then the operation is simple, but the application precision is reduced

Engineering Contradiction:

Improveoperation simplicityVSAvoidapplication precision

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent applies dynamics by making the valve-on timing adjustable rather than fixed. The control device can dynamically set the timing based on actual application needs, allowing optimization of the balance between control simplicity and productivity. This resolves the contradiction by enabling adaptive control that prevents both overtightening (which causes leakage) and undertightening (which increases tact time).

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of valve-on timing from a fixed value to an adjustable parameter. By allowing the timing to be modified based on liquid agent properties and application requirements, the system can optimize performance without increasing overall control complexity. This parameter adjustment resolves the contradiction between simple control and high productivity.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12589406B2Liquid agent application apparatus

Publication Date: 2026.03.31 FUJI CORP

AI summary

A liquid agent application apparatus includes an application nozzle that is movable up and down and in a horizontal plane direction with respect to a board, an application valve that switch between a first state in which supply of a liquid agent to the application nozzle is performed and a second state in which the supply of the liquid agent to the application nozzle is stopped, and a control device that controls these. The control device performs control such that the application nozzle is lowered, the application valve is switched to the second state by standing by a predetermined time after switching the application valve to the first state at a predetermined supply start timing, and the application nozzle is raised after a timing at which a tip end of the application nozzle reaches a lowering end and the application valve is switched to the second state.