Positioning Device for Hot Melt Adhesive Melter
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Solution Overview
Problem
Existing adhesive hot melt systems face issues with uneven heating of the adhesive slug, leading to potential damage of internal components due to uneven dropping and contact with the receptacle walls, which can cause damage to heating elements and pumping systems.
Innovation Solution
A melter system with a loading chamber and a hopper, where a positioning device with a rod and flanges is used to penetrate and center the adhesive slug, preventing movement and ensuring uniform melting and delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adhesive slug is allowed to drop freely into the hopper, then the melting process can proceed, but the slug may tip onto its side and contact interior walls causing damage to heating elements and pumping system
Solution Approach 1:
A positioning device acting as an intermediary element is introduced between the loading chamber and hopper. This device includes a rod extending into the hopper that penetrates the adhesive slug during dropping, guiding it to a vertical orientation and preventing contact with interior walls that could damage heating elements or pumping system components
Solution Approach 2:
The positioning device is pre-configured in the hopper before the adhesive slug is dropped. The rod extends upward to a predetermined height that ensures it will penetrate and center the slug as it falls, preventing improper positioning before the melting process begins
2Productivity
If heat is applied to the adhesive slug in the first receptacle, then the adhesive melts and can be delivered, but uneven heating causes the slug to drop unevenly and tip in the second receptacle
Solution Approach 1:
The positioning device serves as a mediator that ensures the adhesive slug drops vertically and centers properly in the hopper. This prevents the tipping and uneven positioning that results from uneven heating in the first receptacle, allowing the heating system to operate more effectively and uniformly
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 positioning device effectively stabilizes the adhesive slug within the hopper, preventing bouncing and rolling, and ensures uniform melting, reducing the risk of damage to internal components and enhancing the efficiency of adhesive delivery.
Implementation Method 1
a positioning device disposed in the hopper extending to a first height from a bottom of the hopper. The positioning device is configured to penetrate an adhesive slug received in the hopper from the loading chamber
Implementation Method 2
Heat is applied to the container which causes an outer periphery of the adhesive slug to melt
Implementation Method 3
The second receptacle includes heating units to melt the slug
Implementation Method 4
the slug may drop from the drum, under gravity, through an opening and into the second receptacle
Data Source
AI summary
A melter of a fluid delivery device includes a loading chamber, a hopper disposed beneath the loading chamber and connected to the loading chamber, and a positioning device disposed in the hopper extending to a first height from a bottom of the hopper. The positioning device is configured to penetrate an adhesive slug received in the hopper from the loading chamber. The positioning device may be formed as a rod having a proximal end and a distal end extending to the first height.