Flexible Spacer Application Support for Thin Insulating Glass

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Solution Overview

Problem

Existing machines face challenges in applying flexible spacers to thin glass plates due to bending stresses, which compromise the strength and adhesion of the spacer, especially in automated manufacturing processes.

Innovation Solution

An apparatus and method that includes a contrasting device with a movable contrasting element to minimize bending stresses during spacer application, allowing for precise positioning and adhesion on glass plates of any thickness, including thin ones, using a translator and applicator system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If automated spacer application is used, then manufacturing precision and productivity are improved, but bending stresses on thin glass plates worsen

Engineering Contradiction:

Improvespacer application precisionVSAvoidglass plate strength

Core Design Contradiction:

Manufacturing precisionVSStrength

Solution Approach 1:

The process support is made movable along the advancement axis to dynamically adjust its position. When the translator needs to pass, the process support retracts; when supporting the glass, it extends to form a continuous support surface. This dynamic adjustment allows automated precision application while maintaining glass strength by providing continuous support.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The support system is segmented into multiple independent components: inlet support, process support, and outlet support. Each can move independently along the advancement axis, allowing the translator to pass through gaps between segments while maintaining support continuity when needed, thus resolving the conflict between automation and glass strength.

Inventive Principle:

Principle #1Segmentation

2Extent of automation

If the translator passes through the process support zone, then automation is improved, but support continuity worsens

Engineering Contradiction:

Improveautomated spacer applicationVSAvoidsupport continuity

Core Design Contradiction:

Extent of automationVSStability of the object's composition

Solution Approach 1:

The process support is designed to move dynamically between extended and retracted positions. It extends to maintain continuous support during spacer application, then retracts to allow the translator to pass through the zone without collision, enabling both automation and support continuity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The process support proactively retracts before the translator arrives and extends again after the translator passes. This preliminary action prevents interference with automation while maintaining support continuity during critical spacer application phases.

Inventive Principle:

Principle #10Preliminary action

3Strength

If pressure is applied to ensure spacer adhesion, then bonding strength is improved, but bending stresses on thin glass worsen

Engineering Contradiction:

Improvespacer adhesion strengthVSAvoidbending stress on glass

Core Design Contradiction:

StrengthVSStress or pressure

Solution Approach 1:

The system changes the spatial parameter of the support by moving the process support along the advancement axis. This creates optimal support positioning that distributes pressure evenly during spacer application, ensuring adequate adhesion strength while minimizing bending stresses on thin glass plates.

Inventive Principle:

Principle #35Parameter changes

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 solution effectively applies flexible spacers to thin glass plates without undue bending stress, ensuring proper adhesion and maintaining manufacturing efficiency while reducing implementation costs and cycle time.

Implementation Method 1

bending stresses are not always and completely cancellable, since a zone of the process support must be kept clear to allow the translator to pass along the axis X

Methodology Applied

Scientific EffectBending stress: Deformation

Implementation Method 2

the spacer, provided with an appropriate acrylic adhesive, is unwound from the roll and adhered progressively about the periphery of the plate

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS20260028873A1Apparatus and method for applying a flexible spacer for insulating glass

Publication Date: 2026.01.29 FOREL SPA

AI summary

An apparatus for applying a flexible spacer to a glass plate including an applicator for flexible spacers, and a support backing for the glass plate. The support backing includes a lateral support and a translator, the lateral support includes an inlet support, a process support, and an outlet support, wherein the process support, arranged between inlet support and outlet support is adapted to contrast the action of the applicator according to a direction substantially perpendicular to said lateral support, and the apparatus includes a translator adapted to move along a direction, a contrasting device including a contrasting element adapted to be moved between a support position, in which it forms a continuation of said process support, and a retracted position, in which it is adapted to allow the passage of the translator.