Rotary Slat Pill Packaging with Negative Pressure Retention
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Solution Overview
Problem
Conventional pill packaging machines face challenges in ensuring accurate pill counts with minimal operator intervention, high speed operation, and cost-effectiveness due to complexity and labor-intensive manual corrections.
Innovation Solution
An automated packaging apparatus featuring independently rotatable cylindrical slats or drums with negative pressure systems and ejection mechanisms to accurately dispense pills into containers, minimizing operator intervention and optimizing pill count accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional pill capturing devices with rotary slats are used, then automated pill filling is achieved, but operator intervention is still required to ensure accurate pill counts
Solution Approach 1:
The patent implements a feedback mechanism where sensors detect the presence or absence of pills in each receptacle of the rotary slat. This information is fed back to a control system that can identify missing pills and trigger appropriate actions, such as alerting operators or adjusting the filling process, thereby ensuring accurate pill counts while maintaining automation.
Solution Approach 2:
The patent replaces manual visual inspection and manual pill placement with an automated detection system using sensors and control mechanisms. This substitution eliminates the need for operator intervention in verifying pill counts, fully automating the process while maintaining reliability.
2Measurement precision
If manual operator intervention is used to verify pill counts, then accurate counting is achieved, but labor costs increase and sterility requirements are compromised
Solution Approach 1:
The system performs self-verification of pill counts through automated sensors and detection mechanisms. The machine monitors its own filling process, detecting missing pills automatically without requiring external operator intervention, thereby maintaining precision while reducing complexity.
Solution Approach 2:
Manual verification by operators is replaced with automated optical or sensory detection systems. These systems continuously monitor pill placement and provide accurate counting information, eliminating the need for human involvement while maintaining or improving measurement precision.
3Manufacturing precision
If the filling operation duration is extended to ensure accurate counts, then pill count accuracy improves, but productivity decreases
Solution Approach 1:
The patent implements continuous monitoring of pill filling throughout the process. Sensors continuously detect pill presence in each receptacle as the rotary slat moves, allowing for real-time verification without interrupting the filling operation. This maintains both accuracy and high productivity.
Solution Approach 2:
The system performs preliminary detection and verification during the filling process itself, rather than requiring a separate verification step after filling. This integrated approach ensures accurate counts are achieved during the filling operation, maintaining productivity while ensuring precision.
4Device complexity
If conventional rotary slats with arcuate paths are used, then simple structure is maintained, but pill capture reliability is insufficient
Solution Approach 1:
The patent modifies specific local features of the rotary slat, such as the geometry and positioning of individual receptacles, to improve pill capture. By optimizing the local structure of each receptacle and its relationship to the pill flow path, reliability is enhanced without requiring a complete redesign of the entire rotary slat system.
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 solution provides accurate pill counting with reduced operator involvement, high-speed operation, and cost-effectiveness by ensuring precise pill dispensing into containers, addressing the limitations of conventional machines.
Implementation Method 1
A negative pressure system operably engaged with the radially inward portion of the at least one rotary slat and in fluid communication with the pill apertures thereof is configured to apply a negative pressure to the pill apertures so as to retain the pills therein
Implementation Method 2
An ejection device operably engaged with the radially inward portion of the at least one rotary slat and in communication with the pill apertures at the second angular position is configured to eject the pills from the pill apertures outwardly of the radially outward portion
Data Source
AI summary
A packaging apparatus and method for depositing pills into a series of containers is provided. A cylindrical rotary slat is rotatable about a first axis and comprises radially inward and outward portions, the radially outward portion defining pill apertures for receiving pills therein at a first angular position. A negative pressure system is configured to apply a negative pressure to the pill apertures to retain the pills therein. An ejection device is in communication with the pill apertures at a second angular position of the rotary slat to eject the respective pills outwardly from the pill apertures. A collection mechanism is disposed adjacent to the radially outward portion about the second angular position, and is configured to collect the pills ejected from the pill apertures and to direct the pills toward the series of containers for deposition therein.