Magnetic Field Adhesive Feeding Device for OLED Packaging

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Solution Overview

Problem

Conventional adhesive feeding devices for OLED packaging generate heat, causing degradation of adhesive physicochemical parameters and wear issues, and suffer from unstable adhesive transfer due to nitrogen gas pressure fluctuations and storage tank instability.

Innovation Solution

An adhesive feeding device utilizing a magnetic field control unit to manage the flow of an adhesive mixture with magnetic properties, eliminating the need for a firing pin and stabilizing the transfer process through controlled magnetic fields, avoiding heat-induced parameter changes and pressure instability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a firing pin is used to extrude adhesive from the nozzle, then the adhesive dripping can be controlled, but heat is generated causing degradation of adhesive physicochemical parameters and wear of the firing pin and nozzle

Engineering Contradiction:

Improveadhesive dripping controlVSAvoidheat generation and wear

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical firing pin system with a magnetic field-based control system. The magnetic field acts on magnetic particles embedded in the adhesive mixture, enabling extrusion and dripping control without physical contact. This eliminates heat generation from mechanical impact and wear of the firing pin and nozzle, while maintaining precise control capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces magnetic particles as an intermediary between the magnetic field control unit and the adhesive. These particles serve as a mediator that transmits magnetic field forces to control the adhesive mixture's movement and extrusion, avoiding direct mechanical contact that causes heat and wear.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If nitrogen gas pressure is used to transfer adhesive from storage tank to container, then the transfer process is simplified, but pressure instability and storage tank deformation cause transfer fluctuations

Engineering Contradiction:

Improvetransfer process simplicityVSAvoidadhesive transfer stability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent replaces the nitrogen gas pressure system with a magnetic field-based transfer mechanism. The magnetic field acts on magnetic particles in the adhesive mixture to drive transfer from storage tank to container, eliminating pressure instability and storage tank deformation issues while maintaining transfer functionality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Magnetic particles serve as an intermediary that enables controlled transfer of the adhesive mixture through magnetic field forces, replacing the unstable gas pressure mechanism and providing reliable, fluctuation-free transfer.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If a firing pin is used for adhesive extrusion, then dripping control is achieved, but maintenance cost increases due to wear of firing pin and nozzle

Engineering Contradiction:

Improvedripping controlVSAvoidmaintenance cost

Core Design Contradiction:

Ease of operationVSEase of repair

Solution Approach 1:

The patent replaces the mechanical firing pin with a magnetic field control system that acts remotely on the adhesive mixture through magnetic particles. This eliminates wear of the firing pin and nozzle, significantly reducing maintenance requirements and costs while preserving dripping control functionality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

The magnetic field control ensures stable and controlled adhesive dripping, reducing maintenance costs and improving the consistency of the packaging process by maintaining uniform magnetic field strength and avoiding heat-related degradations.

Implementation Method 1

a magnetic field control unit, which is provided above one end of the adhesive dripping unit opposite to the adhesive outgoing end, and which is configured to control the adhesive mixture to flow out from the adhesive outgoing end without a firing pin

Methodology Applied

Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

The magnetic material can drive the adhesive to move when subjecting to a magnetic field force

Methodology Applied

Scientific EffectMagnetism: Magnetism

Data Source

PatentUS9987652B2Adhesive feeding device

Publication Date: 2018.06.05 BOE TECHNOLOGY GROUP CO LTD

AI summary

An adhesive feeding device includes an adhesive dripping unit and a magnetic field control unit. The adhesive dripping unit is configured to accommodate an adhesive mixture having magnetic properties and comprises an adhesive outgoing end. The magnetic field control unit is provided above one end of the adhesive dripping unit opposite to the adhesive outgoing end, and is configured to control the adhesive mixture to flow out from the adhesive outgoing end without a firing pin.