Air-Projected Adhesive Dispensing for Ammunition Case Mouths
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for applying anaerobic adhesives to the case mouth and primer of ammunition rounds are inefficient due to the adhesive's tendency to cure upon contact with metal surfaces, leading to reduced throughput and tip contamination, especially in touch transfer methods which require horizontal bullet positioning and result in low production rates.
Innovation Solution
A dispense system utilizing a positive displacement pump and a nozzle with a tapered tip to project anaerobic adhesive through the air onto the case mouth and primer, eliminating direct contact with the metal surfaces and enabling high-speed, contamination-free application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If touch transfer dispensing method is used to apply anaerobic adhesive to case mouth and primer, then adhesive application is achieved, but adhesive cures on dispense tip upon contact with metal surfaces reducing throughput
Solution Approach 1:
The patent introduces air as an intermediary medium between the dispense tip and the metal surface. The adhesive is projected through air onto the case mouth and primer without the dispense tip contacting the metal, preventing premature curing on the tip while ensuring reliable adhesive application to the target surfaces.
Solution Approach 2:
The patent replaces the mechanical touch transfer contact method with a projection system that uses air pressure to propel adhesive through air. This substitution eliminates the harmful mechanical contact between the dispense tip and metal surfaces, preventing adhesive curing on the tip while maintaining application effectiveness.
2Manufacturing precision
If dispense tip contacts metal surface for adhesive application, then adhesive is applied to target surface, but adhesive cures on dispense tip reducing operational time
Solution Approach 1:
Air serves as an intermediary that allows adhesive to travel from the dispense tip to the target surface without direct contact. This prevents the adhesive from curing on the dispense tip, extending its operational time while maintaining precise application to the case mouth and primer through controlled projection.
Solution Approach 2:
The patent extracts the harmful contact element (dispense tip-metal surface contact) from the adhesive application process. By projecting adhesive through air, the system separates the dispensing function from the contact function, allowing precise application without the tip contacting metal surfaces that would cause curing.
3Adaptability or versatility
If sliding mechanism is used for horizontal bullet positioning during adhesive application, then adhesive can be applied to primer, but throughput is greatly reduced
Solution Approach 1:
The patent replaces the complex mechanical sliding positioning system with a projection-based adhesive delivery system. By projecting adhesive through air to reach the primer, the system eliminates the need for horizontal bullet positioning mechanisms, greatly increasing throughput while maintaining the ability to apply adhesive to the primer.
Solution Approach 2:
Air acts as an intermediary that allows adhesive to reach the primer without requiring mechanical contact or positioning adjustments. The projection method enables adhesive to travel through air to the target surface, eliminating the need for sliding mechanisms and horizontal positioning while maintaining application capability.
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 system increases throughput to up to 400 rounds per minute by preventing adhesive curing on the dispense tip and eliminating the need for sliding mechanisms, ensuring consistent and accurate adhesive application without clogging.
Implementation Method 1
a positive displacement pump. The positive displacement pump delivers a predetermined amount of the adhesive, preferably an anaerobic adhesive, from the reservoir to the nozzle at predetermined intervals
Implementation Method 2
The nozzle can have at least a 27 gauge discharge port for discharging the predetermined amount of adhesive through the air and onto the case mouth and primer ammunition
Implementation Method 3
anaerobic adhesives begin to cure when they contact metal. Thus, anaerobic adhesives used with a touch transfer method begin to cure when the dispense tip contacts the active metals (i.e., brass and copper) of the bullet
Data Source
AI summary
A dispense for dispensing an adhesive onto a remote surface, such as a case mouth and primer ammunition. The dispense includes a reservoir containing an adhesive; a positive displacement pump; and a nozzle having a tapered tip. The positive displacement pump delivers a predetermined amount of the adhesive, preferably an anaerobic adhesive, from the reservoir to the nozzle at predetermined intervals. The nozzle discharges the predetermined amount of adhesive through the air and at least 1/16-inch onto the remote surface.