Shotgun Cartridge Separation System for Plastic Metal Recycling
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Solution Overview
Problem
Millions of spent shotgun cartridges accumulate as environmental hazards due to the lack of devices capable of separating plastic and metal components for recycling.
Innovation Solution
An empty shotgun cartridge separating system comprising a clamp with endless surfaces and a guideway that allows relative movement to separate the plastic case from the metal head, utilizing a feeding mechanism and guide assembly for efficient processing of multiple cartridges, with adjustable geometry to accommodate different dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If no separation device is used, then cartridges accumulate as environmental hazards, but there is no device available to separate plastic and metal parts for recycling
Solution Approach 1:
The cartridge separation device is divided into distinct functional segments: a restraint mechanism to hold the metal head, a clamp mechanism to grip the plastic case, and a guideway system to control relative movement. This segmentation allows each component to perform its specific function efficiently while enabling the overall system to separate the composite cartridge into recyclable plastic and metal parts
Solution Approach 2:
The guideway acts as an intermediary element between the restraint and the clamp, controlling and guiding the relative movement between these two components. The guideway's inclined plane and diverging geometry mediate the interaction between the case-gripping clamp and the head-restraining restraint, enabling controlled displacement that separates the plastic case from the metal head
2Productivity
If multiple cartridges are processed simultaneously, then recycling efficiency increases, but device complexity and coordination requirements increase
Solution Approach 1:
The clamp and restraint mechanisms are designed with universal gripping and restraining capabilities that can accommodate multiple cartridges simultaneously. The guideway system provides a universal path that guides all cartridges through the separation process, allowing the same mechanical components to handle multiple items in parallel without requiring separate mechanisms for each cartridge
3Adaptability or versatility
If cartridges of different dimensions are accommodated, then system versatility improves, but adjustment mechanisms and geometry complexity increase
Solution Approach 1:
The clamp and restraint mechanisms incorporate adjustable geometric parameters that can be dynamically modified to accommodate different cartridge dimensions. The guideway's inclined plane angle and divergence geometry can be adjusted to match variations in cartridge size, allowing the system to adapt to different plastic case and metal head dimensions while maintaining effective separation functionality
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
Enables the efficient separation and recycling of plastic and metal components, facilitating high-volume processing and commercial viability through automated sorting and orientation of cartridges.
Implementation Method 1
the feeding mechanism comprises a magnetic conveyor
Data Source
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AI summary
The present invention provides a system for separating empty or used ammunition cartridges, in particular spent plastic shotgun shells, in order to allow the plastic and metal component parts of the cartridge to be recycled, the system comprising a restraint which defines a guideway within which the metal head of the cartridge may be slidingly engaged, and a clamp in the form of a pair of chains arranged to define a clamping path between opposed portions of the chains and along which clamping path the case may be drawn, the guideway diverging from the clamping path so as to draw the case out of register with the head as the cartridge is displace along the clamping path.