A grinder for beans of plant-based products, for example roasted coffee beans, includes a grinding chamber defined by a cylindrical wall and a pair of opposed grinding wheels located in the grinding chamber. At least one of the pair of opposed grinding wheels rotates. The grinder further includes an electric motor for driving the rotating grinding wheel and a first cooling duct extending in the cylindrical wall between a first inlet and a first outlet. A tubular circuit connected to the first cooling duct includes a pump for circulating fluid, a heat dissipater, at least one valve member, and an electronic control unit for actuating the pump and for turning on the heat dissipater according to a temperature sensed by a temperature sensor.

A grinder for beans of plant-based products, for example roasted coffee beans, includes a grinding chamber defined by a cylindrical wall and a pair of opposed grinding wheels located in the grinding chamber. At least one of the pair of opposed grinding wheels rotates. The grinder further includes an electric motor for driving the rotating grinding wheel and a first cooling duct extending in the cylindrical wall between a first inlet and a first outlet. A tubular circuit connected to the first cooling duct includes a pump for circulating fluid, a heat dissipater, at least one valve member, and an electronic control unit for actuating the pump and for turning on the heat dissipater according to a temperature sensed by a temperature sensor.

An apparatus for grinding coffee beans having a hopper arranged to receive and dispense coffee beans. The coffee grinder also includes a conical burr arranged to grind the coffee beans dispensed by the hopper. The apparatus may be employed to grind roasted coffee beans for use in a coffee extraction (conventional coffee machines), for example in a cafe.

An apparatus for grinding coffee beans having a hopper arranged to receive and dispense coffee beans. The coffee grinder also includes a conical burr arranged to grind the coffee beans dispensed by the hopper. The apparatus may be employed to grind roasted coffee beans for use in a coffee extraction (conventional coffee machines), for example in a cafe.

A mill includes a first mill having a first grinding region, a second mill having a second grinding region opposed to the first grinding region and provided to be rotatable relatively to the first mill, and a heat radiation mechanism which is provided in at least one of the first mill and the second mill and radiates friction heat generated as a result of rotation of the first mill and the second mill relative to each other, and the heat radiation mechanism is provided in a portion except for the first grinding region and the second grinding region.

A mill includes a first mill having a first grinding region, a second mill having a second grinding region opposed to the first grinding region and provided to be rotatable relatively to the first mill, and a heat radiation mechanism which is provided in at least one of the first mill and the second mill and radiates friction heat generated as a result of rotation of the first mill and the second mill relative to each other, and the heat radiation mechanism is provided in a portion except for the first grinding region and the second grinding region.

A grinder for beans of plant-based products, for example roasted coffee, whose powder is adapted for use in the preparation of beverages, includes a grinding chamber defined by a cylindrical wall, a pair of opposed grinding wheels, at least one of which rotates, and which are located in said grinding chamber, an electric motor for driving the rotating grinding wheel, a first cooling duct extending in said cylindrical wall between a first inlet and a first outlet. A tubular circuit connected to the first cooling duct comprises a motor pump for circulating the fluid, heat dissipater, at least one valve member, an electronic control unit for actuating said motor pump and for turning on said heat dissipater according to the value of temperature sensed by said temperature sensor.

A grinder for beans of plant-based products, for example roasted coffee, whose powder is adapted for use in the preparation of beverages, includes a grinding chamber defined by a cylindrical wall, a pair of opposed grinding wheels, at least one of which rotates, and which are located in said grinding chamber, an electric motor for driving the rotating grinding wheel, a first cooling duct extending in said cylindrical wall between a first inlet and a first outlet. A tubular circuit connected to the first cooling duct comprises a motor pump for circulating the fluid, heat dissipater, at least one valve member, an electronic control unit for actuating said motor pump and for turning on said heat dissipater according to the value of temperature sensed by said temperature sensor.

A vending machine comprises a cabinet (2) in which there are housed: a storage volume (10), for containing coffee beans (CB), a grinder (11), designed to grind coffee beans (CB) coming from the storage volume (10), a brewing unit (12), designed to receive an amount of ground coffee (GC) coming from the grinder (11), a supply arrangement (13), configured for supplying an extraction fluid (HW) to the brewing unit (12), a dispensing arrangement (14) of a coffee-based beverage (EC), set downstream of an outlet (12a) of the brewing unit (12), at least a part of a cooling arrangement, configured for cooling the coffee beans (CB) contained in the storage volume (10). The storage volume (10) comprises an inner container (40)), for receiving and storing the coffee beans (CB), and the cooling arrangement comprises a first outer casing (41) which at least partially surrounds the inner container (40)), between the inner container (40) and the first outer casing (41) at least a part of a first gap (42) being defined, having at least one inlet (42a) and at least one outlet (42b). The cooling arrangement further includes a refrigeration unit (20), having at least a first outlet (18) for a flow of cooled air, connected via at least one first delivery duct (CA) to the at least one inlet (42a) of the first gap (42), and at least one first inlet (29) for a flow of air to be cooled, connected via at least a first return duct (WA) to the at least an outlet (42b) of the first gap (42).

A vending machine comprises a cabinet (2) in which there are housed: a storage volume (10), for containing coffee beans (CB), a grinder (11), designed to grind coffee beans (CB) coming from the storage volume (10), a brewing unit (12), designed to receive an amount of ground coffee (GC) coming from the grinder (11), a supply arrangement (13), configured for supplying an extraction fluid (HW) to the brewing unit (12), a dispensing arrangement (14) of a coffee-based beverage (EC), set downstream of an outlet (12a) of the brewing unit (12), at least a part of a cooling arrangement, configured for cooling the coffee beans (CB) contained in the storage volume (10). The storage volume (10) comprises an inner container (40)), for receiving and storing the coffee beans (CB), and the cooling arrangement comprises a first outer casing (41) which at least partially surrounds the inner container (40)), between the inner container (40) and the first outer casing (41) at least a part of a first gap (42) being defined, having at least one inlet (42a) and at least one outlet (42b). The cooling arrangement further includes a refrigeration unit (20), having at least a first outlet (18) for a flow of cooled air, connected via at least one first delivery duct (CA) to the at least one inlet (42a) of the first gap (42), and at least one first inlet (29) for a flow of air to be cooled, connected via at least a first return duct (WA) to the at least an outlet (42b) of the first gap (42).