Gear Pump Sealing Device for Insulating Glass
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Solution Overview
Problem
Existing methods for sealing insulating glass panes face challenges with metering accuracy and efficiency due to the compressibility and thixotropic behavior of sealing compounds, leading to increased pressure requirements and weight of equipment, which results in reduced sealing speed and increased vibration, especially when dealing with larger glass panel gaps.
Innovation Solution
The use of gear pumps and dynamic mixers to deliver and mix the sealing compound constituents, reducing pressure loss and equipment weight, allowing for lighter and more compact sealing devices with improved metering accuracy and increased flow capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the storage volume of the piston-cylinder unit is increased to avoid interruptions of the sealing process, then the continuous sealing capability is improved, but the metering accuracy deteriorates due to compressibility and thixotropic behavior of the compound
Solution Approach 1:
The patent divides the storage system into multiple smaller piston-cylinder units instead of using one large storage volume. Each unit maintains a manageable size that preserves metering accuracy while multiple units work in sequence to enable continuous sealing operations without interruption.
Solution Approach 2:
The patent employs dynamic pressure compensation and active control of the piston-cylinder units to maintain consistent metering accuracy. The system dynamically adjusts pressure and flow rates to counteract the compressibility and thixotropic effects, ensuring precise dosing even during continuous operation.
2Duration of action of stationary object
If the storage volume of the piston-cylinder unit is increased, then the continuous sealing capability is improved, but the weight of the equipment increases
Solution Approach 1:
The patent divides the storage system into multiple smaller piston-cylinder units instead of using one large storage volume. Each unit maintains a manageable size that preserves metering accuracy while multiple units work in sequence to enable continuous sealing operations without interruption.
3Quantity of substance
If pressures of 200 bar to 250 bar are applied for delivery of the paste-like compound, then the flow capacity is improved, but the power demand and weight of drives increase
Solution Approach 1:
The patent replaces high-pressure mechanical piston systems with gear pumps that utilize gear meshing to generate pressure. This substitution reduces the power demand and drive weight while maintaining the necessary flow capacity for sealing compound delivery.
Solution Approach 2:
The patent employs hydraulic principles through gear pump operation, where the intermeshing gears create pressure differentials to move the viscous sealing compound. This approach achieves the required flow capacity with lower power input compared to direct mechanical compression.
4Productivity
If the nozzle and piston-cylinder units are arranged on a common movable carrier to keep delivery paths short, then the delivery efficiency is improved, but the effort for motion drive increases due to increased weight
Solution Approach 1:
The patent divides the storage system into multiple smaller piston-cylinder units instead of using one large storage volume. Each unit maintains a manageable size that preserves metering accuracy while multiple units work in sequence to enable continuous sealing operations without interruption.
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 approach decreases the power demand and weight of sealing equipment, enhances metering accuracy, and enables uninterrupted sealing with reduced vibrations, allowing for efficient processing of silicone-based compounds even with larger glass panel gaps, thus improving the overall efficiency and durability of the sealing process.
Implementation Method 1
By means of gear pumps, the constituents are delivered from the intermediate storage units into a dynamic mixer
Implementation Method 2
in which they are mixed with one another by means of motor-driven mixing elements
Implementation Method 3
The setting, paste-like compound leaving the mixer reaches into a nozzle, which has at least one opening, which is directed into the intermediate space between the glass panels
Data Source
AI summary
A method and device for preparing a paste-like compound having at least two constituents which set after having been mixed. The mixed compound is injected into an intermediate space between two glass panels of an insulating glass pane by delivering the at least two constituents from storage containers into separate intermediate storage units from which they are delivered into a mixer in which the constituents are mixed while passing through the mixer. The compound leaving the mixer is injected into the intermediate space between the two glass panels by a nozzle which has at least one opening directed into the intermediate space between the glass panels. The nozzle is moved along the edge of at least one of the two glass panels. The constituents of the paste-like compound are pumped using gear pumps from the intermediate storage units into the mixer, where they are dynamically mixed by motor-driven mixing elements.