Controlled Foam Outlet for Consistent Milk Frothing
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Solution Overview
Problem
Existing devices for foaming milk lack precise control and repeatability in producing stable foam, often resulting in inconsistent foam quality and hygiene issues due to thick foam accumulation in the container.
Innovation Solution
A foaming device with a controlled outlet that adjusts based on parameters such as preparation time, fluid temperature, torque, and rotational speed of the foaming tool, allowing for precise control over the foaming process and enabling the outlet to be partially or fully closed to manage foam dispensing effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the outlet is kept open during foaming, then the foam can be dispensed continuously, but the foam quality becomes inconsistent and thick foam accumulates in the container
Solution Approach 1:
The outlet is made dynamically controllable, transitioning from a static open state to a dynamically adjustable state that can be partially or fully closed during foaming. This dynamic control allows the system to adapt the outlet opening based on foam density and dispensing requirements, ensuring consistent foam quality while preventing accumulation.
Solution Approach 2:
The outlet parameter (opening degree) is changed during the foaming process based on detected foam characteristics. By adjusting the outlet opening parameter in response to foam density and flow conditions, the system maintains consistent foam quality and prevents thick foam accumulation while enabling continuous dispensing.
2Manufacturing precision
If the outlet is closed during foaming, then foam quality consistency is improved, but continuous dispensing is interrupted
Solution Approach 1:
The outlet employs dynamic partial closure rather than complete closure, allowing controlled foam dispensing to continue while maintaining quality consistency. The outlet can be adjusted to different opening degrees based on real-time foam characteristics, balancing quality control with continuous operation.
Solution Approach 2:
Instead of completely closing the outlet, the system applies partial closure to achieve the desired foam quality control. This partial action allows sufficient foam to pass through for continuous dispensing while providing enough control to maintain consistency and prevent accumulation.
3Productivity
If the foaming tool rotates at high speed, then foaming efficiency is improved, but control precision over foam characteristics deteriorates
Solution Approach 1:
The system incorporates feedback mechanisms that monitor foam characteristics during high-speed foaming and adjust the outlet opening accordingly. This feedback loop enables the system to maintain precise control over foam characteristics even at high rotation speeds, balancing efficiency with control precision.
Solution Approach 2:
The outlet opening parameter is dynamically adjusted based on foam characteristics generated at high rotation speeds. By changing the outlet parameter in response to the foaming process, the system maintains control precision over foam characteristics while operating at high efficiency speeds.
4Stability of the object's composition
If thick foam accumulates in the container, then foam stability is improved, but hygiene conditions deteriorate due to difficulty in cleaning
Solution Approach 1:
The outlet dynamically prevents thick foam accumulation by adjusting its opening based on foam density and flow conditions. This dynamic control ensures that foam remains at optimal thickness for stability while preventing excessive accumulation that would compromise cleaning ease and hygiene.
Solution Approach 2:
The outlet opening parameter is adjusted to maintain foam at the optimal thickness range that provides stability without excessive accumulation. By controlling the outlet parameter, the system achieves foam stability while preventing the conditions that lead to hygiene problems and cleaning difficulties.
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 device ensures consistent foam quality by controlling the dispensing of foam based on defined parameters, preventing thick foam accumulation and enhancing hygiene by allowing for easy cleaning, while enabling the production of various foam types and temperatures.
Implementation Method 1
it generates a magnetic field in response to which the foaming tool is made to rotate inside the container
Implementation Method 2
Milk foaming occurs by agitation of the milk which in turn traps air inside the liquid film
Implementation Method 3
the at least one outlet is preferably arranged in the container in such a location that allows dispensing of the fluid preparation from the container by gravity
Data Source
Figure 1~2b
Figure 3a~4b
Figure 5a~6b
AI summary
Device (100) for producing fluid foam comprising: a container (10) where the fluid can be introduced; a foaming tool (20) being rotatable in the inner volume of the container (10), able to mix and foam the fluid; at least one outlet (23) to allow dispensing of the fluid preparation from the container (10); a base able to hold the container (10) and comprising a driving unit (30) providing the rotation of the foaming tool (20); the at least one outlet (23) being actuated to be open or to be partially or totally closed as a function of one or a plurality of parameters defining the foaming of the fluid inside the container (10), these parameters being: preparation time, fluid temperature, torque exerted by the foaming tool in the fluid, rotational speed of the foaming tool or sense of rotation of the foaming tool.