Sample Processing Unit With Flow-Limited Test Tube Feed
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Solution Overview
Problem
Existing sample processing systems face blockage issues when large numbers of test tubes are poured into a limited volume feed bin, disrupting the orderly sorting and output of samples.
Innovation Solution
A sample processing unit with a flow limiting mechanism that controls the flow of sample containers into a first feed bin, using a transmission channel and adjusting components to manage the entry of containers, preventing blockage and ensuring efficient sorting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of test tubes are poured into the feed bin in a short time, then the productivity of sample processing is improved, but blockage of test tubes occurs causing them to get stuck and affecting output
Solution Approach 1:
A flow limiting mechanism is introduced as an intermediary component between the second feed bin and the first feed bin. This mechanism includes a flow limiting component with a transmission channel that has a limited cross-sectional area, acting as a mediator to control and regulate the flow of test tubes from the second feed bin into the first feed bin, preventing blockage while maintaining processing throughput
Solution Approach 2:
The flow limiting mechanism changes the flow parameters by restricting the transmission channel's cross-sectional area, thereby controlling the quantity of test tubes that can flow into the first feed bin at any given time. This parameter change ensures that test tubes enter the feed bin at a manageable rate, preventing blockage and maintaining reliable flow
2Device complexity
If the feed bin volume is limited, then the device complexity is reduced, but blockage occurs when large numbers of test tubes are poured in
Solution Approach 1:
The feed bin system is segmented into two distinct parts: a second feed bin for receiving bulk test tubes and a first feed bin for ordered storage. The flow limiting mechanism further segments the flow path by creating a controlled transmission channel, dividing the bulk flow into manageable portions that can be processed by the limited-volume first feed bin without causing blockage
Solution Approach 2:
The flow limiting mechanism serves as an intermediary structure that connects the second feed bin to the first feed bin. It includes a flow limiting component with a transmission channel that mediates the flow of test tubes, allowing the first feed bin to maintain its limited volume while still receiving test tubes at a controlled rate that prevents blockage
Data Source
AI summary
A sample processing unit includes a sample loading component, a transfer component and an output component. The sample loading component includes first and second feed bins, a feeding mechanism and a flow limiting mechanism, the first feed bin forms a storage space storing sample containers received by the second feed bin and flowing from the second feed bin into the first feed bin, the feeding mechanism is connected to the first feed bin and transports the sample containers in the storage space to the transfer component one by one. When the sample containers flow from the second feed bin into the first feed bin, the flow limiting mechanism is configured to limit quantity of sample containers flowing into the storage space, and the storage space is capable of storing multiple sample containers.