Hopper Divider Walls for Tablet Dispensing Jam Prevention
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Solution Overview
Problem
Current automated dispensing systems for solid pharmaceutical articles face challenges in efficiently regulating the supply and dispensing of tablets, leading to potential jams and inefficiencies in loading and dispensing processes.
Innovation Solution
The proposed system incorporates an article supply regulation system with divider walls and adjustable choke points within a hopper chamber, combined with a dispensing channel and active air flow mechanisms to control the flow of tablets, ensuring smooth dispensing and preventing jams by distributing the weight load and promoting the dispensing of older tablets first.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple tablets are stored in a hopper chamber for automated dispensing, then the productivity of the dispensing system is improved, but the risk of jams and dispensing failures increases due to unregulated tablet supply
Solution Approach 1:
The hopper chamber is divided into multiple regions (front region, first rear region, second rear region, third rear region) using divider walls. This segmentation allows tablets to be stored in different zones with controlled access to the dispensing channel, preventing unregulated tablet flow and reducing jam risks while maintaining high productivity
Solution Approach 2:
Divider walls act as intermediary structures between the tablet storage areas and the dispensing channel. These walls with controlled openings regulate tablet flow from each region, ensuring smooth dispensing without direct contact between bulk tablets and the dispensing mechanism, thereby improving reliability
2Productivity
If the hopper chamber capacity is increased to handle more tablets, then the productivity is improved, but the complexity of regulating tablet flow and preventing jams increases
Solution Approach 1:
The hopper chamber is divided into multiple regions (front region, first rear region, second rear region, third rear region) using divider walls. This segmentation allows tablets to be stored in different zones with controlled access to the dispensing channel, preventing unregulated tablet flow and reducing jam risks while maintaining high productivity
Solution Approach 2:
Each region within the hopper chamber has specific local characteristics - the front region provides easy access to the dispensing channel, while rear regions store additional tablets with controlled flow paths. The divider walls create localized flow regulation zones, simplifying the overall system by breaking down complex flow control into manageable regional segments
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
This solution enhances the reliability and scalability of the dispensing process, allowing for efficient dispensing of a larger number of tablets with reduced risk of jams and improved loading distribution, enabling the system to handle varying tablet sizes and capacities.
Implementation Method 1
Forward and reverse air flows are used to selectively convey the tablets through the dispensing channel
Data Source
AI summary
An apparatus for dispensing solid articles includes a dispensing channel, a housing and an article supply regulation system. The dispensing channel has an inlet and an outlet and defines a dispensing path therebetween. The housing defines a hopper chamber to hold the articles. The hopper chamber is in fluid communication with the inlet of the dispensing channel. The housing includes a floor. The article supply regulation system includes a first divider wall, a second divider wall and a third divider wall configured and positioned in the hopper chamber to define, in combination with the housing: a front region between the inlet and the first divider wall; a first rear region between the first divider wall and the second divider wall; a second rear region between the second divider wall and the third divider wall; and a third rear region on a side of the third divider wall opposite the second rear region. The first divider wall forms a front choke passage between the front region and the first rear region and between the first divider wall and the floor. The second divider wall forms a first rear choke passage between the first rear region and the second rear region and between the second divider wall and the floor. The third divider wall forms a second rear choke passage between the second rear region and the third rear region and between the third divider wall and the floor and/or a side wall of the housing.