Device for grinding coffee or other alimentary substances

Abstract

A device for the grinding of coffee, for instance in (semi)automatic machines for the preparation and the dispensing of drinks, comprising a housing (11), inside which are positioned at least two milling heads (19, 25) of which at least one (19) is revolving, means (2) of driving said at least one revolving milling head (19), an inlet (32) for feeding the coffee between the milling heads (19, 25)and an exit (35) for the ground coffee. Advantageously, the housing (11) and the milling heads (19, 25) internal to it are coupled to the means of driving (2) through an insert-and-lock joint (12, 13, 18, 218, 20, 120) that allows their rapid removal and reassembly without the aid of tools. Preferably the device includes means of regulating the relative distance between the milling heads and at least one sensor (S) for the measurement of such distance and / or a sensor (S1) of the speed of rotation of the drive shaft.

Description

technical field [0001] The present invention relates to a device for grinding coffee or other nutritious substances, in particular a device for reducing substances such as coffee, barley, flowers, herbs etc. to a powder which is fed into automatic or semi-automatic beverage preparation and dispensing machines , making these substances brewed into beverages. Background technique [0002] Usually, in (semi-)automatic machines dedicated to the preparation of beverages based on coffee, barley, herbs, flowers or other nutritious products which are available but whose particle size is not suitable for the relevant dispensing process, suitable grinding means are provided. Whether for home or professional use, the device includes a housing, a pair of grinding heads (at least one of which rotates) located in the housing, a mechanism for feeding food material (such as coffee beans or coffee grains) between the grinding heads. A hopper, a discharge port for ground material or powder, ...

AI Technical Summary

Problems solved by technology

In other words, the initial reference spacing between the grinding heads can be lost and negatively affect the accuracy of the adjustment and the actual particle size obtained

[0014] Another disadvantage of the traditional solution is that the known devices are in fact unable to distinguish between the grinding blades the absence of particles of coffee or other nutritive substances

In other words, known devices do not recognize when the substance to be ground has run out (lack), or when the device is running, when no powdered substance is being fed into the beverage preparation and dispensing machine prepared by the compounding of these powders middle

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