Vacuum Extraction for Sorting Non-Rigid Materials
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Solution Overview
Problem
Existing material sorting systems, particularly in recycling facilities, face challenges in efficiently sorting non-rigid materials, objects smaller than three square inches, and thin films due to limitations in suction gripper technology, leading to increased operational costs and reduced productivity.
Innovation Solution
A vacuum object sorting system comprising a vacuum extraction assembly with multiple vacuum extractor devices and an object recognition device coupled to sorting control logic and electronics. This system converts a controlled compressed air stream into a channeled vacuum airflow to capture and sort target objects, including non-rigid materials and small objects, by directing the airflow through the inlet and outlet of the vacuum extractor devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If suction gripper technology is used for material sorting, then rigid objects with surface area greater than three square inches can be picked and placed, but non-rigid objects smaller than three square inches cannot be effectively sorted
Solution Approach 1:
The patent replaces the mechanical suction gripper system with a vacuum extraction system that uses airflow dynamics. Instead of relying on mechanical adhesion through suction cups, the system uses a vacuum generator to create a controlled airflow that can capture and transport various material types including non-rigid objects and small items, eliminating the surface area and rigidity constraints of traditional mechanical suction systems
Solution Approach 2:
The system changes the operating parameters from mechanical suction force to vacuum-generated airflow velocity and pressure differential. By controlling the vacuum level and airflow characteristics rather than relying on fixed mechanical suction cup properties, the system can adapt to different material properties including flexibility, size, and shape, enabling reliable sorting of objects that traditional suction grippers cannot handle
2Productivity
If robotic sorting systems are implemented, then productivity increases and contamination decreases, but capital expense increases and operational flexibility decreases
Solution Approach 1:
The patent replaces complex robotic mechanical systems with a simpler vacuum extraction system. Instead of using robots with grippers, arms, and positioning mechanisms, the system uses a vacuum generator combined with airflow control to achieve sorting functionality, significantly reducing mechanical complexity and capital requirements while maintaining high productivity
Solution Approach 2:
The system uses pneumatic principles by employing a vacuum generator and controlled airflow to perform sorting operations. This pneumatic approach replaces complex mechanical robotic systems with a more straightforward air-based mechanism that achieves similar or superior sorting performance at lower cost and with reduced complexity
3Ease of operation
If human sorters are used, then operational flexibility is maintained, but productivity is limited by human speed and fatigue
Solution Approach 1:
The patent replaces human operators with an automated vacuum extraction system controlled by sensors and processing logic. The system uses sensors to detect objects and their characteristics, processes this information to determine sorting decisions, and activates vacuum extractors accordingly, eliminating human speed and fatigue limitations while maintaining operational flexibility through programmable control logic
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 enables efficient and accurate sorting of a wider variety of materials, including non-rigid objects and those smaller than three square inches, thereby reducing operational costs and increasing productivity in material recovery facilities.
Implementation Method 1
a vacuum extraction assembly that includes at least one vacuum extractor device having an inlet and an outlet, wherein the at least one vacuum extractor device is configured to convert a controlled compressed air stream into a channeled vacuum airflow entering the inlet and exiting the outlet
Data Source
AI summary
Systems and methods for vacuum extraction for material sorting applications are provided. In one embodiments, a vacuum object sorting system comprises: a vacuum extraction assembly that includes at least one vacuum extractor device having an inlet and an outlet, wherein the at least one vacuum extractor device is configured to convert a controlled compressed air stream into a channeled vacuum airflow entering the inlet and exiting the outlet; and an object recognition device coupled to sorting control logic and electronics, wherein the controlled compressed air stream is controlled in response to a signal generated by the object recognition device; wherein the at least one vacuum extractor device is configured to capture a target object identified by the sorting control logic and electronics utilizing the channeled vacuum airflow, and further utilizing the channeled vacuum airflow, to pass the target object through the inlet and outlet to a deposit location.