Dual Turntable Specimen Separator with Differential Rotation
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Solution Overview
Problem
Existing devices for separating test specimens are inefficient in quickly separating and feeding them to a test system, as they can only handle specimens slowly and require a long time for emptying.
Innovation Solution
A device with a first inner turntable and a second outer turntable, where the turntables rotate in opposite directions at different speeds, featuring a conical configuration and barriers to control specimen flow, allowing for rapid separation and feeding of individual specimens to a test system, with sensors and ejectors for precise handling and dust prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single turntable is used to separate test specimens, then the device structure is simple, but the separation speed is slow and feeding efficiency is low
Solution Approach 1:
The device is divided into two separate turntables (first inner turntable and second outer turntable) that operate independently. Each turntable has its own driving mechanism and can rotate at different speeds and directions, allowing parallel processing of multiple specimens simultaneously, thus increasing separation speed while maintaining manageable structural complexity through modular design
2Productivity
If multiple specimens are fed to the test system simultaneously, then the feeding efficiency increases, but the test system cannot process them individually
Solution Approach 1:
The first and second turntables rotate at different periodic rates, creating a controlled sequence where specimens are transferred one by one from the inner turntable to the outer turntable. This periodic differential rotation ensures that while multiple specimens are in the system simultaneously, they are fed to the test system in a controlled sequential manner, maintaining individual processing capability while improving overall feeding efficiency
3Productivity
If the turntables rotate at the same speed and direction, then the device operation is simple, but the specimens cannot be effectively separated
Solution Approach 1:
The device employs dynamic control where the first and second turntables can rotate at variable speeds and opposite directions. This dynamic operation allows specimens to be propelled outward from the inner turntable and received by the outer turntable in a controlled manner, achieving effective separation while the automated control systems maintain ease of operation through programmable speed and direction adjustments
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 quick separation and feeding of test specimens to a test system, ensuring only one specimen is processed at a time, while preventing dust and dirt from entering the system, and allowing for easy cleaning and disassembly.
Implementation Method 1
the test specimens can only get to the second turntable via the opening... from which they then move from the first rotary disc to the second one due to the centrifugal force turntable are moved
Implementation Method 2
the first turntable has a surface sloping downwards toward the first barrier and the second turntable has a surface sloping downwards toward the second barrier
Data Source
Figure 1
Figure 2
AI summary
A device (1) for singulating test specimens is described, comprising a first inner rotary disk (4) and a second outer rotary disk (5). The first inner rotary disk (4) is surrounded by the second rotary disk (5). The rotary disks (4, 5) are moved at different speeds. Preferably, the second rotary disk (5) has a higher rotational speed than the first rotary disk (4). A barrier (8) is arranged between the first rotary disk (4) and the second rotary disk (5), which has an opening (9) through which at least one test specimen can pass from the first rotary disk (4) to the second rotary disk (5).