Pouch Dosing Pressure Relief for Capsule Channel Contamination
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Solution Overview
Problem
Air flowing into the capsule supply channel during the manufacturing process of oral pouched products can cause powder migration and contamination of machinery or disturb the powder dose, leading to inefficiencies in the production process.
Innovation Solution
A dosing device with pressure reduction means, such as vents or cyclone separators, is used to manage air pressure within the powder and object supply channels, preventing air from entering the capsule channel and minimizing powder migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pressurized air is used to supply powder and objects to the pouch, then the powder and objects can be delivered efficiently, but air may flow into the capsule supply channel causing powder migration and contamination
Solution Approach 1:
A pressure reduction means is introduced as an intermediary component between the pressurized air source and the capsule supply channel. This intermediary device reduces the air pressure before it enters the capsule supply channel, preventing powder migration while maintaining efficient delivery of powder and objects to the pouch.
Solution Approach 2:
The air pressure is made non-uniform across different supply channels. The powder supply channel maintains high pressure for efficient delivery, while the capsule supply channel has reduced pressure to prevent contamination. This local differentiation of pressure quality resolves the contradiction between delivery efficiency and contamination prevention.
2Quantity of substance
If high pressure air is used in the powder supply channel, then powder can be supplied effectively, but it may disturb the powder dose and cause contamination
Solution Approach 1:
The air pressure control is segmented into different zones: high pressure in the powder supply channel for effective powder supply, and low pressure in the capsule supply channel for precision dosing. This segmentation allows each channel to operate at optimal pressure without interfering with the other's precision requirements.
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 effectively reduces the risk of powder migration and contamination, enhancing the manufacturing process efficiency and product quality by maintaining the integrity of the powder dose.
Implementation Method 1
the powdered material is supplied to the powder supply channel by means of pressurised air
Implementation Method 2
the dosing device includes pressure reduction means to reduce the pressure of air inside the powder supply channel and the object supply channel
Data Source
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AI summary
Dosing devices 200, 300, 400, 500 and methods are disclosed for use in the manufacture of a pouched product containing a dose of powdered material P and an object, such as a capsule C. The powdered material and the object are supplied to an interior volume of a partially-formed pouch formed by a substantially continuous pouch material, prior to final sealing of the pouch material and creation of the pouched product. A powder supply channel 220, 320, 420, 520 of the dosing device receives the powdered material prior to combination with the object. An object supply channel 230, 330, 430, 530 is configured to supply the object to the powder supply channel for combination with the powdered material. The powdered material and the object are both supplied to the powder supply channel by means of pressurised air. The dosing device includes pressure reduction means to reduce the pressure of air inside the powder supply channel and the object supply channel. The pressure reduction means may comprise a mesh 231, a vent in the form of a valve 340, or a cyclone separator 431, 531.