Cap-Closing Apparatus Torque Control for Specimen Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cap-closing methods for specimen containers, such as those using flexible caps or screw-type caps, often fail to ensure a secure seal due to loose fastening, leading to inadequate sealing performance.
Innovation Solution
A cap-closing apparatus comprising a holding mechanism, a rotating mechanism, a torque detector, and a controller that detects and controls the torque during cap rotation to ensure proper attachment of the cap to the specimen container, thereby securing a high sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw-type cap is used to enhance sealing performance, then sealing performance is improved, but the fastening may become loose leading to inadequate sealing
Solution Approach 1:
A torque detector is integrated into the rotating mechanism to detect the torque generated when the cap is being tightened. The controller receives this torque signal and uses it as feedback to adjust the rotating mechanism, ensuring the cap is tightened to the precise torque value required for adequate sealing performance.
Solution Approach 2:
The system changes the control parameter from simple rotational position to torque-based control. By detecting and controlling the torque parameter during cap tightening, the system ensures consistent and precise fastening tightness, directly addressing the sealing performance requirement.
2Reliability
If torque detection and control is implemented, then sealing performance is improved, but device complexity increases
Solution Approach 1:
The torque detector is integrated into the rotating mechanism section, merging the detection function with the existing rotation function. The controller is also integrated to coordinate both the moving and rotating mechanisms based on torque feedback, reducing overall system complexity despite adding torque detection capability.
3Reliability
If precise torque control is used for each cap, then sealing performance is improved, but processing time increases
Solution Approach 1:
The torque detector continuously monitors torque during the entire rotation process, and the controller continuously adjusts the rotating mechanism based on real-time torque feedback. This continuous control ensures precise sealing without requiring multiple discrete adjustment steps, maintaining high processing speed.
Solution Approach 2:
The system rapidly determines the appropriate torque value through continuous detection and quickly adjusts the rotating mechanism to achieve the target torque, minimizing the time spent on each cap while ensuring precise sealing performance.
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 apparatus ensures a secure and efficient cap-closing process by detecting torque and controlling cap rotation, achieving a high sealing performance and allowing for precise and rapid attachment of caps to multiple specimen containers.
Implementation Method 1
a torque detector configured to detect a torque at a time of rotation
Data Source
AI summary
According to an embodiment, a cap-closing apparatus includes, a holding mechanism section configured to be capable of holding a cap which is attached to an opening of a specimen container that is formed to be capable of containing a specimen, a moving mechanism section configured to move the cap, a rotating mechanism section configured to rotate the cap, a torque detector configured to detect a torque at a time of rotation, and a controller configured to control an amount of rotation of the rotating mechanism section, based on the torque detected by the torque detector.