Sealing Compound Bead Segmentation for Insulating Glass Edge Joints

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Solution Overview

Problem

Existing methods for filling the edge joints of insulating glass elements with sealing compound often result in air pockets and insufficient mixing, particularly when interruptions occur, leading to reduced mechanical stability and increased water vapor permeability, especially in large-size glass elements.

Innovation Solution

A method where the sealing compound bead is formed discontinuously from multiple segments, allowing for repositioning of the glass element and nozzle, with butt joints of type A or A' formed away from corner regions to prevent air pockets, and a control device for an apparatus that facilitates this process using a guide element and sensor arrangement to manage the direction of sealing compound introduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the sealing compound is introduced continuously in one circumferential direction, then the filling process is simple and fast, but air pockets form at abutting points and mechanical stability is reduced

Engineering Contradiction:
Improvefilling speedVSAvoidmechanical stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The sealing compound bead is divided into multiple segments introduced in alternating circumferential directions. This segmentation prevents air pocket formation at abutting points while maintaining filling efficiency, as each segment is introduced in a direction that ensures proper material flow and bonding without trapping air.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The method employs periodic alternation between first and second circumferential directions for introducing sealing compound segments. This periodic action creates a rhythmic filling pattern that systematically eliminates air pockets while maintaining continuous progress around the edge joint, resolving the contradiction between speed and reliability.

Inventive Principle:
Principle #19Periodic action

2Manufacturing precision

If manual or complex automated methods are used to handle abutting points, then sealing quality improves, but device complexity and operation difficulty increase

Engineering Contradiction:
Improvesealing qualityVSAvoidmachinery complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The method dynamically alternates the direction of sealing compound introduction based on the position around the edge joint. This dynamic approach automatically adapts to different locations (including abutting points) without requiring complex mechanical interventions, maintaining high sealing quality while keeping the apparatus relatively simple.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control device monitors the filling process and automatically adjusts the direction of sealing compound introduction based on detected position and filling status. This feedback mechanism ensures high sealing quality at all points, including abutting points, while eliminating the need for complex manual operations or specialized machinery.

Inventive Principle:
Principle #23Feedback

3Productivity

If the sealing compound is introduced without interruption, then productivity is high, but air pockets form at abutting points leading to increased water vapor permeability

Engineering Contradiction:
Improvefilling continuityVSAvoidwater vapor permeability
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The periodic alternation between first and second circumferential directions creates a controlled filling pattern that prevents air pocket formation while maintaining continuous operation. This rhythmic introduction of sealing compound segments ensures complete displacement of air from the edge joint, eliminating water vapor permeability issues without interrupting the overall filling process.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The method maintains continuous filling operation by seamlessly alternating between two directions rather than stopping at abutting points. This continuous action in alternating directions ensures complete filling without air pockets, simultaneously achieving high productivity and low water vapor permeability through uninterrupted material introduction.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS10208531B2Method and device for filling an edge joint of an insulating glass element with a sealing compound
Publication Date: 2019.02.19 LISEC AUSTRIA GMBH
  • US10208531B2 patent drawing
  • US10208531B2 patent drawing
  • US10208531B2 patent drawing

AI summary

A strand of sealing compound is expelled from a nozzle into an edge joint of an insulating glass element to form around it a contiguous sealing compound bead. The sealing compound bead is formed discontinuously from several segments. At least one first segment is formed by the relative movement in a first circumferential direction of the insulating glass element, and at least one second segment is formed by the relative movement in a second, opposite circumferential direction. Each connection of segments of the sealing compound bead which is situated on a longitudinal side section of the circumference of the insulating glass element is formed such that the strand of the sealing compound is applied in the region of the end of a sealing compound bead already situated in the edge joint and is formed by the relative movement away from the end.