FIELD: crushing or grinding of materials.
SUBSTANCE: disclosed is a coffee grinding machine comprising a housing with a motor and grinding elements for grinding coffee beans and a device for detecting the presence of a filter and/or filter holder in a given position, suitable for receiving ground coffee, in which the detection device comprises a normally open switch comprising a first half-support for a filter and/or a filter holder and a second half-support for a filter and/or a filter holder, and in which the switch is configured to close when the filter and/or the filter holder is in electrical contact with the first half-support and with the second half-support.
EFFECT: creation of a reliable and stable system for detecting the presence of a filter or a filter holder in a coffee grinding machine.
15 cl, 11 dwg
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