Test Tube Capping Apparatus With Ejector Pin Grippers
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Solution Overview
Problem
Existing capping and de-capping systems for test tubes in laboratory settings are either manual, slow, and tedious or require bulky machinery due to the need for remote drive mechanisms, making them inefficient for handling multiple tubes simultaneously.
Innovation Solution
A customizable capping and de-capping apparatus featuring grippers with ejector pins and socket units that allow for translational and rotational movements, enabling individual or simultaneous capping and de-capping of test tubes within standard laboratory racks, controlled by a programmable logic controller or computer application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual capping and de-capping is used, then simplicity is maintained, but productivity is low and labor is tedious
Solution Approach 1:
The apparatus divides the capping and de-capping function into multiple independent gripper units, each capable of operating on individual test tubes. This segmentation allows parallel processing of multiple tubes simultaneously, improving productivity while keeping each individual gripper unit relatively simple in structure.
Solution Approach 2:
Multiple gripper units are combined into a single integrated apparatus that can handle multiple test tubes simultaneously. The shared base structure, control system, and common drive mechanism merge the functionality of multiple individual capping/de-capping operations into one unified system, improving overall productivity without requiring separate machines for each tube.
2Productivity
If a linear array of capping and de-capping units is used, then multiple tubes can be processed, but the device becomes bulky and requires larger footprint
Solution Approach 1:
The gripper units are arranged in a compact configuration where multiple grippers can be positioned close together, with the drive mechanisms located at the periphery rather than requiring excessive space between each unit. This nested-like arrangement allows multiple tubes to be processed simultaneously while minimizing the overall footprint area of the apparatus.
Solution Approach 2:
Instead of arranging gripper units in a long linear array extending in one dimension, the apparatus utilizes two-dimensional arrangement with grippers positioned in rows and columns. This dimensional change allows for compact packaging and reduces the overall footprint while maintaining the capability to process multiple tubes simultaneously.
3Length of moving object
If drive mechanisms are positioned remote from capping heads, then tube spacing can be reduced, but the device complexity and footprint increase
Solution Approach 1:
A single multi-functional drive mechanism is used to control multiple gripper units, eliminating the need for separate drive mechanisms for each gripper. This universal drive system reduces overall device complexity while still allowing remote positioning of drive mechanisms from the capping heads, enabling compact tube spacing.
Data Source
AI summary
An apparatus for automated capping and de-capping of test tubes having an ejector pin system for individualized cap ejection.