The present invention discloses a grinding core structure for bean grinder, which belongs to the technical field of grinding devices, comprising a frustum-shaped grinding core body. A plurality of grinding teeth are evenly distributed on the periphery of the grinding core body in the longitudinal direction. At least one first convex edge is laterally arranged at the outer side of the upper section of the grinding teeth, and at least one second convex edge is longitudinally arranged at the outer side of the lower section of the grinding teeth. The present invention provides an embodiment of a grinding core structure, in which the first convex edges of the grinding core can quickly crush beans at the beginning of grinding for subsequently grinding them into finer particles, and the second convex edges further grind crushed beans to improve grinding efficiency and uniformity of fine powder.

The present invention discloses a grinding core structure for bean grinder, which belongs to the technical field of grinding devices, comprising a frustum-shaped grinding core body. A plurality of grinding teeth are evenly distributed on the periphery of the grinding core body in the longitudinal direction. At least one first convex edge is laterally arranged at the outer side of the upper section of the grinding teeth, and at least one second convex edge is longitudinally arranged at the outer side of the lower section of the grinding teeth. The present invention provides an embodiment of a grinding core structure, in which the first convex edges of the grinding core can quickly crush beans at the beginning of grinding for subsequently grinding them into finer particles, and the second convex edges further grind crushed beans to improve grinding efficiency and uniformity of fine powder.

A spice mill part, more particularly a spice mill lower part, for a spice mill, having a housing, which consists at least in part of a plastic material and which can be rotatably connected to a further spice mill part, more particularly a spice mill upper part. A receiving element is provided on the housing, in which receiving element there is arranged a milling element being particularly a milling ring, made from a ceramic material, with the milling element being clamped in the receiving element in a frictionally engaged manner by a compressive force directed substantially radially inwardly and acting on a self-contained outer bearing face of the milling element, the compressive force acting substantially along the entire circumference on the external bearing face of the milling element.

A medicine grinder has a grinding assembly having a ring burr and a frustoconical burr being mutually rotatable relative to each other. The ring burr is tubular. The frustoconical burr is disposed within the ring burr and has multiple rough grinding edges, multiple recesses, and a non-grinding portion. The multiple rough grinding edges surround a center of the frustoconical burr. Each one of the grinding edges spirally extends about the center of the frustoconical burr. The multiple recesses are divided by the multiple rough grinding edges. One of the multiple recesses has a capacity being larger than a capacity of each one of the other recesses to define a non-grinding portion. Therefore, multiple receiving spaces are formed between the frustoconical burr and the ring burr.

A medicine grinder has a grinding assembly having a ring burr and a frustoconical burr being mutually rotatable relative to each other. The ring burr is tubular. The frustoconical burr is disposed within the ring burr and has multiple rough grinding edges, multiple recesses, and a non-grinding portion. The multiple rough grinding edges surround a center of the frustoconical burr. Each one of the grinding edges spirally extends about the center of the frustoconical burr. The multiple recesses are divided by the multiple rough grinding edges. One of the multiple recesses has a capacity being larger than a capacity of each one of the other recesses to define a non-grinding portion. Therefore, multiple receiving spaces are formed between the frustoconical burr and the ring burr.

A grinding assembly for grinding a partially dried or a dried substance is described. The assembly include a first component, a second component, a chamber component, a disc component, a first magnetic component, and a second magnetic component. The first magnetic component maintains a magnetic connection with the second magnetic component to affix the first component to the chamber component. Upon user rotation of the first component, a first set of protrusions of the first component are moved such that the first set of protrusions engage a second set of protrusions of the chamber component to grind the substance. In response to such rotation, the substance is ground into a much thicker consistency that resembles a hand-broken consistency. The ground substance falls through a plurality of openings of the chamber component into the second component for storage.

A grinding assembly for grinding a partially dried or a dried substance is described. The assembly include a first component, a second component, a chamber component, a disc component, a first magnetic component, and a second magnetic component. The first magnetic component maintains a magnetic connection with the second magnetic component to affix the first component to the chamber component. Upon user rotation of the first component, a first set of protrusions of the first component are moved such that the first set of protrusions engage a second set of protrusions of the chamber component to grind the substance. In response to such rotation, the substance is ground into a much thicker consistency that resembles a hand-broken consistency. The ground substance falls through a plurality of openings of the chamber component into the second component for storage.

A coffee machine comprising a coffee machine housing, having a coffee mill (2) comprising a grinder (6) for grinding coffee beans (32) to coffee grounds (33) and having a brewing device (35) having a brewing chamber (34) which is adjustable between a filling position and a brewing position for subjecting the coffee grounds (33) to extraction with hot water to produce a coffee drink, wherein associated with the coffee mill (2) is an electric motor (1) by means of which a grinding ring (8) of the grinder (6) can be driven rotatably about an axis of rotation (13) relative to a grinding cone (7) disposed radially within the grinding ring (8) by means of a shaft (14) spaced apart from the axis of rotation (13), in order to grind the coffee beans (32) between the grinding ring (8) and the grinding cone (7), wherein the shaft (14) is disposed such that said shaft extends perpendicular to the axis of rotation (13), and wherein in the filling position the brewing chamber (34) is disposed axially below the grinder outlet (31), in such a way that the axis of rotation (13) passes through the grinder outlet (31) and the brewing chamber (34), such that under the effect of gravity ground coffee powder can be discharged axially from the grinder (6) into the brewing chamber (34), and that the electric motor is arranged radially adjacent to the grinding ring (8).

A coffee machine comprising a coffee machine housing, having a coffee mill (2) comprising a grinder (6) for grinding coffee beans (32) to coffee grounds (33) and having a brewing device (35) having a brewing chamber (34) which is adjustable between a filling position and a brewing position for subjecting the coffee grounds (33) to extraction with hot water to produce a coffee drink, wherein associated with the coffee mill (2) is an electric motor (1) by means of which a grinding ring (8) of the grinder (6) can be driven rotatably about an axis of rotation (13) relative to a grinding cone (7) disposed radially within the grinding ring (8) by means of a shaft (14) spaced apart from the axis of rotation (13), in order to grind the coffee beans (32) between the grinding ring (8) and the grinding cone (7), wherein the shaft (14) is disposed such that said shaft extends perpendicular to the axis of rotation (13), and wherein in the filling position the brewing chamber (34) is disposed axially below the grinder outlet (31), in such a way that the axis of rotation (13) passes through the grinder outlet (31) and the brewing chamber (34), such that under the effect of gravity ground coffee powder can be discharged axially from the grinder (6) into the brewing chamber (34), and that the electric motor is arranged radially adjacent to the grinding ring (8).

A method and crushing device for coarse-grained material. The crushing device includes one first axially rotatable grinding mechanism and a second grinding mechanism which is fixed with respect to the first axially rotatable grinding mechanism. The second grinding mechanism accommodates the first axially rotatable grinding mechanism and is in operative connection with the first axially rotatable grinding mechanism for the purpose of crushing the coarse-grained material. The axially rotatable grinding mechanism has one transport channel for the respective material to be crushed. The transport channel includes a first section extending axially and a second section which adjoins the first section at an angle and passes through an outer lateral surface of the axially rotatable grinding mechanism.