Liquid Application Apparatus Uniform Linear Dispensing

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Solution Overview

Problem

Existing liquid application apparatuses, such as multinozzles, fail to uniformly apply liquids like adhesives or electronic materials in a linear fashion, resulting in uneven distribution on the objective region.

Innovation Solution

A liquid application apparatus featuring a trap with an opening that allows the liquid to linearly appear and an operation unit to position the trap on the objective region, ensuring uniform thickness application by utilizing a feeder to guide the liquid through guides and an operation unit to bring the linearly appeared liquid into contact with the region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a multinozzle with multiple discharge holes is used to apply liquid, then the liquid can be discharged from multiple points, but the liquid distribution becomes non-uniform with thick spots at discharge hole locations and thin spots between them

Engineering Contradiction:
Improveliquid application efficiencyVSAvoidliquid distribution uniformity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The liquid supply system is segmented into multiple independent channels, each with its own discharge hole and discharge quantity adjuster. This segmentation allows independent control of liquid flow to different regions, enabling uniform distribution across the entire application area while maintaining high productivity through parallel operation of multiple channels

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The discharge quantity adjusters are positioned upstream of the discharge holes to pre-regulate the liquid flow before it reaches the discharge points. This preliminary action ensures that each discharge hole receives the precise amount of liquid needed, preventing both thick spots (over-application) and thin spots (under-application) on the workpiece surface

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8893646B2Liquid application apparatus
Publication Date: 2014.11.25 NHK SPRING CO LTD
  • US8893646B2 patent drawing
  • US8893646B2 patent drawing
  • US8893646B2 patent drawing

AI summary

A liquid application apparatus applies a liquid to an objective region. The apparatus includes a trap having an opening from which the liquid linearly appears, a feeder to feed the liquid to the trap, and an operation unit to position the trap on the objective region and bring the linearly appeared liquid at the trap into contact with the objective region, thereby linearly applying the liquid to the objective region. The apparatus is capable of linearly applying the liquid in a uniform thickness to the objective region.