Refillable Coffee Capsule Filling Tube With Integrated Tamping
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Solution Overview
Problem
Existing refillable coffee capsules are difficult to fill with the optimal amount of ground coffee in a reproducible manner, leading to inconsistent coffee quality and cumbersome handling, as they require precise weighing and manual compression, which is not practical for everyday use.
Innovation Solution
A coffee grinder with a movable receptacle for the capsule, allowing for lateral, horizontal, or linear movement, which accommodates different capsule sizes and types, and includes a replaceable insert for varying capsule sizes, enabling easy and precise filling with a filling tube and ram for efficient coffee distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If refillable capsules are filled manually with ground coffee, then the filling process can be performed without specialized equipment, but the amount of coffee added is inconsistent and difficult to control
Solution Approach 1:
The device segments the filling process into distinct functional components: a hopper for coffee storage, a dosing mechanism for precise portioning, and a compression mechanism for tamping. This segmentation allows each component to be optimized independently, achieving both ease of operation and filling precision.
Solution Approach 2:
The device enables self-service filling through automated dosing and compression mechanisms. The user simply places the capsule in the device, and the system automatically dispenses the correct amount of coffee and compresses it, eliminating the need for manual weighing and tamping while ensuring consistent results.
2Manufacturing precision
If weighing equipment is used to measure the optimal amount of coffee for each capsule, then filling precision is improved, but the filling process becomes cumbersome and time-consuming
Solution Approach 1:
The device performs preliminary action by pre-calibrating the dosing mechanism to dispense the exact required amount of coffee in one operation. The hopper is pre-filled with coffee beans or ground coffee, and the dosing mechanism is pre-set to the optimal portion size, eliminating the need for repeated weighing operations for each capsule.
Solution Approach 2:
The device replaces the manual mechanical weighing process with an automated dosing mechanism that uses calibrated volumetric or gravimetric dispensing. This substitution maintains filling precision while dramatically reducing the time required, as the automated system operates much faster than manual weighing and transfer.
3Stability of the object's composition
If a fixed grinder is used for grinding coffee beans, then grinding consistency is maintained, but the device cannot accommodate different capsule sizes and types
Solution Approach 1:
The device incorporates dynamic, adjustable components including variable grinding settings that can be changed between uses, and an adaptable receptacle system that can accommodate different capsule dimensions. The dosing mechanism can also be adjusted to match different capsule volumes, allowing the device to maintain grinding consistency while adapting to various capsule types.
Solution Approach 2:
The device achieves universality by integrating multiple functions: it can grind coffee beans with adjustable coarseness, store ground coffee in a hopper, dose precise amounts for different capsule sizes, and accommodate various capsule types through an adaptable receptacle design. This multi-functionality allows a single device to serve multiple purposes while maintaining core performance standards.
4Manufacturing precision
If coffee is compressed manually using tampers, then the coffee is compacted into the capsule, but the process is cumbersome and requires additional equipment
Solution Approach 1:
The device merges the grinding, dosing, and compression functions into a single integrated system. The compression mechanism is built into the dosing assembly, so that coffee dosing and tamping occur in one continuous operation within the same device, eliminating the need for separate tampers and manual handling steps.
Solution Approach 2:
The device performs self-service compression through an automated tamper mechanism that is activated as part of the dosing cycle. The system automatically compresses the coffee to the optimal density and uniformity without requiring the user to manually operate a separate tamper, thereby simplifying the process while maintaining compression quality.
Data Source
AI summary
Capsule coffee and capsule coffee machines have become very popular, mainly using disposable capsules. The amount of metal or plastic waste per kilogram of coffee is relatively large, as the capsules must be disposed of after single use. Refillable capsules are offered as an alternative. A disadvantage of all refillable capsules is that it is difficult and hardly reproducible to fill same with the optimal amount of coffee powder. The aim of this invention is to enable fast, clean and reproducible optimal filling of refillable coffee capsules. This is achieved by a filling device for refillable coffee capsules or a coffee grinder having such a filling device. This consists of an access opening and a filling tube through which ground coffee powder can fall into the capsule, a plunger that is guided in the filling tube and can be moved up and down therein in order to compress the coffee powder that has fallen into the capsule, as well as a movable receptacle for a capsule, which movable receptacle is located underneath the filling tube.