Plant Sampling Punch Mechanism for Automated Analysis
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Solution Overview
Problem
Current methods for genetic and pathological analysis of plants face bottlenecks in sample collection and handling, leading to inefficiencies, errors, and contamination, particularly in the analysis of small plant species and seedlings.
Innovation Solution
A mechanized sampling tool and automated cell system that enables rapid, non-destructive, and error-free collection of plant samples using a punch mechanism with fluid ejection for sample delivery, integrated with a multi-axis manipulator arm and transport system to manage plant samples efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual sampling methods are used, then flexibility and adaptability are maintained, but productivity is low and errors occur frequently
Solution Approach 1:
The punch mechanism is designed to automatically hold the plant sample through friction in the intermediate position without requiring additional clamping mechanisms. The system serves itself by using the friction between the sample and die bore to maintain position during transfer, eliminating the need for complex active holding devices.
Solution Approach 2:
The sampling process is divided into distinct positional phases (initial, intermediate, final) with the punch traveling between them. This segmentation allows the system to optimize each phase independently - cutting at initial position, transferring at intermediate position, and depositing at final position - thereby increasing overall productivity without excessive complexity.
2Reliability
If manual sample handling is performed, then device complexity remains low, but contamination risks increase and sample homogeneity varies
Solution Approach 1:
The punch acts as an intermediary carrier that transfers the sample from the cutting position to the delivery position without direct human contact. The die bore serves as an intermediate holding position where the sample is secured by friction, preventing contamination during transfer while maintaining a relatively simple automated structure.
Solution Approach 2:
Manual mechanical handling of samples is replaced with an automated punch-die mechanism that uses controlled friction to hold and transfer samples. This substitution eliminates human contact and variability while maintaining a straightforward mechanical design without complex actuators or sensors.
3Productivity
If technicians spend all time collecting samples, then sampling capacity is maximized, but analysis capacity remains underutilized
Solution Approach 1:
The automated punch mechanism performs sample collection without requiring technician intervention for each sample. The system serves itself by automatically cutting, holding, and transferring samples through the defined positional phases, freeing technicians to perform higher-value analysis tasks while maintaining high sampling capacity.
Solution Approach 2:
The punch mechanism enables continuous sample collection through repetitive cycling between initial, intermediate, and final positions. This continuous operation maximizes sampling capacity without requiring technicians to be continuously engaged, allowing parallel utilization of analysis capacity while maintaining uninterrupted sample throughput.
4Manufacturing precision
If repetitive manual sampling is performed, then equipment complexity remains low, but error rate increases and homogeneity decreases
Solution Approach 1:
The sampling operation is segmented into distinct positional phases that ensure consistent sample handling. The intermediate position with friction-based holding guarantees uniform sample securing, while the defined travel path from initial to final position ensures repeatable sample transfer, improving homogeneity without requiring complex control systems.
Solution Approach 2:
The friction parameter between the sample and die bore is optimized to provide sufficient holding force in the intermediate position. By controlling this friction parameter, the system achieves consistent sample retention during automated transfer, improving precision while maintaining a simple mechanical design without active control mechanisms.
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 significantly reduces manual labor, minimizes contamination risks, and ensures high sample homogeneity, enabling laboratories to process larger numbers of plant samples with improved accuracy and efficiency.
Implementation Method 1
In the intermediate position of the punch, the plant sample is located in the bore of the die and is held there essentially by friction
Implementation Method 2
the tool provides means for ejecting a gaseous fluid or a liquid fluid or a mixture of the two at the lower end of the punch
Data Source
Figure 1
Figure 2
Figure 3~7
AI summary
The invention relates to a sampling tool (1'), characterised in that same includes: a guiding body (1) provided with a through bore (10); a part-carrying punch (2) mounted slidingly adjustable in the bore (10), comprising a lower edge (20), forming a cutting edge; a part-carrying die (3) separated from the guiding body (1) by an opening (4), being provided with a through bore (30) which the lower end (20) of the punch (2) enters when cutting of the sample to be collected, and being provided with a cutting upper edge; a means for actuating the punch (2) between an initial position, in which said punch is retracted into the body (1), a stationary intermediate position, in which the punch is positioned by the edge (20) thereof in the bore (30), and a final position in which the punch passes through the die (3) from one side to the other, the lower edge thereof being outside of the bore (30). The path of the punch (2) is tangential to the surface (310) of the opening (4) and the bore (30) is tangential to a geometric plane containing said surface (310) in order to make a cut with an open contour in the plant from which the sample is collected.