Hot Melt Adhesive Manifold Flow Meter for Multi-Outlet Tracking
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Solution Overview
Problem
Conventional metering systems for hot melt adhesive dispensing are economically impractical and require excessive maintenance due to the need for multiple flow meters, which are not retrofittable on existing systems, making it difficult to monitor adhesive flow effectively across multiple dispensing outlets.
Innovation Solution
A single flow meter is placed in direct fluid communication with the manifold of a hot melt adhesive system, using a pair of sensors and counter-rotating gears to measure adhesive flow, allowing for accurate monitoring of adhesive output and integration with a controller for data collection and user interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple flow meters are installed on each liquid discharge outlet to independently monitor adhesive flow, then measurement precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent combines multiple flow measurement functions into a single flow meter installed on the manifold. The flow meter includes a single sensor that detects adhesive flow through the manifold, eliminating the need for multiple separate flow meters on each discharge outlet. This merging approach maintains measurement precision while significantly reducing device complexity and cost.
Solution Approach 2:
The single flow meter on the manifold serves multiple functions: it monitors total adhesive consumption, tracks flow distribution across multiple outlets, and provides data for all dispensing operations. This universal measurement point replaces the need for outlet-specific meters, achieving multi-functionality with a single device.
2Reliability
If multiple flow meters are installed on each liquid discharge outlet to independently monitor adhesive flow, then reliability is improved, but maintenance costs and difficulty increase
Solution Approach 1:
By merging multiple flow measurement functions into a single flow meter unit on the manifold, the system reduces the number of components that require maintenance. Instead of maintaining multiple separate flow meters on each outlet, operators only need to maintain one centralized flow meter, significantly improving ease of repair while maintaining monitoring reliability.
3Measurement precision
If conventional metering systems with individual flow meters on each outlet are used, then measurement precision is improved, but adaptability decreases as systems are not retrofittable on existing dispensing systems
Solution Approach 1:
The manifold serves as an intermediary component where the flow meter is installed. This intermediate location allows the flow meter to access adhesive flow data from all outlets without requiring modification of each individual outlet or dispenser. The manifold acts as a central access point that enables retrofitting of existing dispensing systems with flow monitoring capability.
4Measurement precision
If individual flow meters are installed on each liquid discharge outlet, then measurement precision is improved, but loss of time increases due to multiple maintenance operations
Solution Approach 1:
The patent merges multiple flow measurement functions into a single flow meter on the manifold, reducing maintenance operations from multiple outlet-specific meters to one centralized unit. This significantly reduces the time required for maintenance activities while preserving the ability to accurately monitor adhesive flow across all dispensing outlets.
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 solution provides accurate and cost-effective monitoring of adhesive flow, reducing maintenance costs and enabling retrofits to existing systems, while ensuring precise tracking of adhesive output across multiple dispensing outlets.
Implementation Method 1
a flow meter for measuring a flow rate of the liquid hot melt adhesive material
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A hot melt adhesive system includes an adhesive supply for receiving solid or semi-solid hot melt adhesive, and a heater associated with the adhesive supply for melting the solid or semi-solid hot melt adhesive into liquid hot melt adhesive. An adhesive tracking system monitors an output of the liquid hot melt adhesive, and includes a flow meter having a flow inlet and a flow outlet. The flow meter measures an amount of the adhesive flowing out of the flow outlet. A product detector may be used to sense a presence of a product to which the adhesive is applied. A controller then determines the total amount of the liquid adhesive dispensed and the average amount of liquid adhesive dispensed per product.