Concentric Air Nozzle Synchronization Prevents Clogging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional technologies face the issue of nozzle clogging due to the drying and solidification of liquid applications, such as moisture-proof agents, at the leading end of ejection nozzles when continuous air curtains are formed.
Innovation Solution
An application device comprising a liquid nozzle part, an air nozzle part concentrically arranged with the liquid nozzle, and an ejection controlling unit that synchronizes the ejection of air with the liquid application, forming an air curtain only during the application to prevent drying and solidification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If an air curtain is continuously formed to prevent liquid scattering, then liquid application precision is improved, but nozzle clogging occurs due to liquid drying and solidification at the leading end of the ejection nozzle
Solution Approach 1:
The air curtain is formed periodically rather than continuously. The ejection controlling unit controls the air nozzle to eject air only during the liquid ejection period, creating a periodic air curtain that prevents liquid scattering during application but allows the nozzle to clear during non-ejection periods, thereby preventing clogging.
Solution Approach 2:
The system dynamically adjusts the air curtain formation timing based on the liquid ejection timing. The air nozzle is activated only when the liquid nozzle is ejecting liquid, creating a dynamic coordination between air curtain formation and liquid application that prevents both scattering and clogging.
2Manufacturing precision
If air is ejected continuously to maintain air curtain, then liquid scattering is prevented, but energy consumption increases
Solution Approach 1:
The air nozzle operates periodically only during liquid ejection periods rather than continuously. This periodic operation maintains the air curtain when needed to prevent liquid scattering while significantly reducing energy consumption during periods when liquid is not being applied.
Solution Approach 2:
The air curtain is formed only partially during the liquid ejection period rather than continuously. This partial action provides sufficient protection against liquid scattering during the critical application phase while avoiding unnecessary energy expenditure during non-ejection periods.
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
This solution effectively prevents nozzle clogging while minimizing the scattering of applied liquids, ensuring a reliable and efficient application process.
Implementation Method 1
forming an air curtain only during the application to prevent drying and solidification
Implementation Method 2
The ejection controlling unit ejects the air from the air nozzle part at a timing in synchronization with an ejection timing of the liquid to be applied
Data Source
AI summary
An application device according to an embodiment includes a liquid nozzle part, an air nozzle part, and an ejection controlling unit. The liquid nozzle part ejects liquid to be applied to an electronic component mounted on a substrate. The air nozzle part ejects air toward the substrate. The air nozzle is concentrically arranged with respect to the liquid nozzle part. The ejection controlling unit ejects the air from the air nozzle part at a timing in synchronization with an ejection timing of the liquid to be applied by the liquid nozzle part.