Powder Mixing Degree Measurement in Continuous Compression Molding
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Solution Overview
Problem
Current methods for producing tablets, such as pharmaceutical products, face challenges in efficiently monitoring the mixing degree of powdery materials and maintaining quality, particularly in continuous processes, which often result in inefficiencies and increased costs due to batch methods and the need for extensive facility design.
Innovation Solution
A powdery material mixing degree measurement device and system that includes a rotator with movable portions, sensors to measure mixing degree, and a remover to correct out-of-range mixtures, integrated with a compression molding machine for continuous monitoring and quality control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If batch method is used for tablet production, then facility design can be simplified with separate chambers for each process, but productivity decreases due to standby periods between processes
Solution Approach 1:
The patent combines multiple separate process chambers (granulating, drying, grading, mixing) into a single integrated continuous processing system. The granulator, dryer, grader, and mixer are connected in sequence within one facility, allowing materials to flow continuously from one operation to the next without standby periods, thereby maintaining simplified facility design while dramatically improving productivity.
Solution Approach 2:
The patent implements continuous processing where materials move continuously through granulating, drying, grading, and mixing operations without interruption. This eliminates the standby periods inherent in batch methods, maintaining continuous useful action throughout the production process and significantly increasing productivity while using a single integrated facility.
2Productivity
If continuous process is used for tablet production, then productivity increases by eliminating standby periods, but measurement and monitoring become more difficult
Solution Approach 1:
The patent incorporates a sensor that continuously measures the mixing degree of powdery materials in real-time within the continuous processing system. This measurement feedback is provided to a controller that can adjust processing parameters to maintain quality standards, making monitoring feasible despite the continuous high-speed operation.
Solution Approach 2:
The patent replaces manual or post-process inspection methods with automated optical or electromagnetic sensors that can measure mixing degree non-invasively in real-time. This substitution enables continuous monitoring without interrupting the high-speed continuous processing flow.
3Productivity
If scaling up from small to large compression molding machine is done, then commercial production capacity increases, but verification experiments increase raw material consumption and costs
Solution Approach 1:
The patent uses a small-scale model continuous processing system to replicate and verify the processing parameters before scaling up to full commercial production. By copying the process configuration and conducting verification experiments on the model system, the company can optimize parameters and reduce raw material consumption during scaling up.
Solution Approach 2:
The patent conducts preliminary verification experiments using the small-scale model system to establish optimal processing parameters before full-scale commercial production. This preliminary action allows for parameter optimization and process validation, reducing the need for extensive raw material consumption during the scaling-up phase.
4Ease of operation
If separate chambers are used for each process step, then each process can be independently controlled, but space occupation increases and material transfer requires manual delivery
Solution Approach 1:
The patent merges multiple separate process chambers into a single integrated continuous processing line where granulating, drying, grading, and mixing occur in sequence within one compact facility. This consolidation reduces the total space required while maintaining independent control of each process step through dedicated control systems for each operation.
Solution Approach 2:
The patent arranges processing operations in a nested or compact linear sequence within a single facility, where each process step is integrated into the overall continuous flow. This nesting approach minimizes the footprint while allowing each process to be independently controlled through localized control systems.
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
Enables precise monitoring and maintenance of mixing quality, allowing for continuous production of tablets without the inefficiencies of batch methods, reducing costs and improving product consistency.
Implementation Method 1
a sensor configured to measure a mixing degree of the mixed powdery materials in the movable portions of the rotator
Data Source
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AI summary
The invention provides a powdery material mixing degree measurement device (M) including a discharger (M6) configured to discharge mixed powdery materials to a filler (X) configured to fill, with the powdery materials, a vertically penetrating die bore (4) of a compression molding machine including a table (31) having the die bore (4), a slidable lower punch (6) having an upper end inserted to the die bore 4, and a slidable upper punch (5) having a lower end inserted to the die bore (4), a plurality of movable portions (M21) configured to move the mixed powdery materials to the discharger (M6), and a sensor (S3) configured to measure a mixing degree of the mixed powdery materials in the movable portions (M21).