Pod dispenser
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Solution Overview
Problem
Existing pod dispensers in vending machines face challenges in efficiently and cost-effectively separating and orienting single-serve pods containing powdered anhydrous materials for beverage preparation, particularly in ensuring correct orientation and preventing jamming during dispensing.
Innovation Solution
A pod dispenser design featuring a belt extractor device with rollers and an agitator to individually extract and orient pods, using a belt conveyor system and agitator to prevent jamming and ensure correct orientation, allowing for sequential dispensing into a vertical stack within a vending machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a belt extractor device with rollers and agitator is used to separate and orient pods, then pod separation and orientation reliability is improved, but device complexity increases
Solution Approach 1:
The extraction system is divided into multiple functional components: a belt extractor for primary pod movement, rollers for orientation control, and an agitator for preventing jamming. Each component performs a specific function in the pod separation process, improving reliability through specialized functionality while keeping individual components relatively simple.
Solution Approach 2:
The belt acts as an intermediary element between the pod storage and the dispensing mechanism. It provides a controlled interface for pod extraction, allowing the system to manage pod flow reliably without requiring complex direct manipulation mechanisms. The belt transfers pods from the storage area through the rollers and agitator to the dispensing point.
2Reliability
If a belt conveyor system with agitator is used to prevent jamming, then dispensing reliability is improved, but manufacturing cost increases
Solution Approach 1:
The agitator is designed to work passively with the belt motion, using the existing conveyor movement to create the agitating action. Rather than requiring an independent power source or complex mechanism, the agitator leverages the belt's motion to prevent pod jamming, reducing manufacturing costs while maintaining reliability.
Solution Approach 2:
The agitator creates periodic disturbances in pod flow along the belt conveyor. This periodic action prevents pods from settling into jamming positions by continuously introducing small variations in pod positioning, thereby maintaining reliable dispensing without requiring continuous complex intervention.
3Manufacturing precision
If rollers and agitator are used to ensure correct pod orientation, then pod orientation precision is improved, but device complexity increases
Solution Approach 1:
The rollers are positioned to contact specific curved surfaces of the pod structure, particularly the flared rim area. This curved contact geometry naturally guides pods into the correct orientation as they pass over the rollers, achieving precise orientation without requiring complex mechanical alignment mechanisms.
Solution Approach 2:
The rollers and agitator work together to pre-orient pods before they reach the dispensing point. By establishing correct orientation early in the extraction process, the system ensures that pods are properly positioned for dispensing without requiring complex final-stage adjustment mechanisms.
Data Source
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AI summary
A dispenser (1) of pods (2) for the production of brewed beverages; the dispenser (1) is equipped with a magazine (4) for holding pods (2) arranged in random order, a belt conveyor (9) designed to extract the pods (2) one by one from the storage compartment (4) to feed then to an outlet (16) in a feed direction (15), and an agitator device (10), which cooperates with the conveyor (9) to move pods (2) away from the conveyor (9) and is defined by a rotor having a hub (24), which is rotationally mounted about an axis (25) transversal to the feed direction (15) to rotate in the opposite direction to the belt conveyor (9), and blades (26), which, during rotation, define with the belt conveyor (9) and upstream of the outlet (16), a gap (28) designed to allow pods (2) lying flat on the belt (11) of the conveyor (9) to reach the outlet (16).