Vertical Annealing Chamber for Ammunition Cases
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Solution Overview
Problem
Existing annealing devices for metallic ammunition cases are labor-intensive, require manual loading, and occupy a large footprint, making them unsuitable for high-throughput commercial operations.
Innovation Solution
A method and apparatus for automatically loading and annealing elongated tubular casings using a feed wheel assembly and a linear slide mechanism, with a motor-driven system that rotates and heats cases in a compact design, allowing for efficient processing of multiple cases simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple cases are processed simultaneously using a horizontally oriented turntable, then productivity increases, but the device occupies a large footprint and requires manual loading
Solution Approach 1:
The patent transitions from a horizontal turntable configuration to a vertical annealing chamber configuration. Cases are fed vertically into the chamber and processed in a vertical orientation, fundamentally changing the spatial dimension of operation. This vertical arrangement reduces the horizontal footprint while maintaining the ability to process multiple cases through automated feeding mechanisms.
Solution Approach 2:
The apparatus incorporates an automatic case loading device that feeds cases into the annealing chamber without manual intervention. The system self-regulates the loading process, eliminating the need for constant supervision and manual orientation of cases, thereby improving productivity while reducing the operational space required.
2Device complexity
If manual loading and orientation of cases is used, then device complexity is reduced, but labor intensity increases and productivity decreases
Solution Approach 1:
The automatic case loading device feeds cases vertically into the annealing chamber automatically. The system includes mechanisms for self-alignment and automatic orientation of cases, eliminating manual loading operations. This automation increases throughput significantly while the added complexity is justified by the elimination of labor-intensive manual operations.
3Device complexity
If a single heat source is used, then device complexity and cost are reduced, but annealing uniformity and reliability decrease
Solution Approach 1:
The patent employs multiple heat sources positioned at different locations within the vertical annealing chamber to provide localized heating zones. This ensures uniform heat distribution throughout the chamber, addressing variations in thermal conductivity and ensuring consistent annealing results across all cases processed simultaneously.
4Device complexity
If cases are annealed without rotation, then device complexity is reduced, but annealing uniformity decreases leading to cracking
Solution Approach 1:
The apparatus incorporates a rotation mechanism that continuously rotates cases during the annealing process. This dynamic rotation ensures uniform exposure of all case surfaces to the heat sources, preventing localized overheating and ensuring consistent thermal treatment. The rotation mechanism is integrated into the automated feeding system, maintaining case orientation while enabling uniform heating.
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 solution enables high-throughput annealing with reduced labor requirements and a smaller footprint, ensuring efficient and consistent annealing of ammunition cases, thereby extending their lifespan and maintaining performance.
Implementation Method 1
Annealing is a process where heat is applied to a metal in order to change the properties, such as strength and hardness, of the metal. Annealing is typically utilized to improve ductility, relieve internal stresses, and generally soften metals that have been hardened by working the metal and/or heat treatment.
Implementation Method 2
a roller plate coupled to the motor and disposed adjacent the rotatable feed wheel assembly within a case receiving region where the at least one case is rotated and heated
Implementation Method 3
the rotatable feed wheel assembly adapted to receive at least one case via gravitational force from a feeding device
Data Source
AI summary
In one embodiment, a case transfer apparatus includes a base, a feeding device having a first end tapering to a second end that is coupled to the base, a motor disposed on the base, a rotatable feed wheel assembly disposed on the base and coupled to the motor, the rotatable feed wheel assembly adapted to receive at least one case via gravitational force from a feeding device, and a roller plate coupled to the motor and disposed adjacent the rotatable feed wheel assembly within a case receiving region where the at least one case is rotated and heated.