An electric motor operated kitchen appliance has a base unit having an electric motor and a preparation vessel, which can be connected to the base unit and into which a rotating element protrudes, which can be rotationally driven by means of the electric motor, wherein a grinding element, which, with a grinding area of a grinding vessel held on the preparation vessel, forms a grinder, can be connected to the rotating element. To advantageously further develop the kitchen appliance, the grinding element is connected to the rotating element via a coupling element having at least one elastic partial area.

A coffee grinding machine including a first burr and a second burr. At least one of the first burr and the second burr is rotatable about an axis of rotation, the burrs being mutually cooperating to grind coffee. The machine includes a motor which rotates at least one of the burrs with respect to the other, wherein the axis of rotation of the motor does not coincide with the axis of rotation of the burrs so that the coffee which is ground by the grinders is directed to an output of a conveyor cone for use thereof.

A coffee grinding machine including a first burr and a second burr. At least one of the first burr and the second burr is rotatable about an axis of rotation, the burrs being mutually cooperating to grind coffee. The machine includes a motor which rotates at least one of the burrs with respect to the other, wherein the axis of rotation of the motor does not coincide with the axis of rotation of the burrs so that the coffee which is ground by the grinders is directed to an output of a conveyor cone for use thereof.

A separation apparatus for separating an unwanted substance from an extraction target includes a forming unit configured to form a separation chamber through which the extraction target passes, and a suction unit communicating with the separation chamber in a direction crossing a passage direction of the extraction target and configured to suck air in the separation chamber. The forming unit includes an inlet for the extraction target, which communicates with the separation chamber, and an outlet for the extraction target, which communicates with the separation chamber, and the air is sucked from the outlet into the separation chamber by suction of the suction unit.

A coffee bean grinding system for coffee machine comprising a coffee bean grinding box, a lower grinding blade assembly disposed within the coffee bean grinding box and a gear box, wherein the coffee bean grinding box further comprises a bottom wall, the lower grinding blade assembly further comprises a transmission joint disposed on the bottom wall, and the gear box further comprises an output shaft that is drivingly connected to the transmission joint; the transmission joint is movably connected to the output shaft.

A coffee mill 1 to which the present invention is applied includes a milling unit 2 which mills, with an inner blade 8, coffee beans 5, a drive shaft 3 in which one end is cooperatively coupled to the inner blade 8 and in which on the shaft center 23 of the other end, a rectangular shaft portion 21 is formed that has a predetermined twist around at least part of the shaft center in a shaft center direction and that is rectangular in cross section and an operating handle 4 to which a rectangle shaft hole 22 that is rectangular in plan view is open and which is coupled to the drive shaft 3 by externally fitting the rectangular shaft hole 22 to the rectangular shaft portion 21.

A coffee grinder includes a support base containing a grinding chamber, the base housing an electric motor coupled to a first shaft, to which a second shaft rotatably coupled but which is axially free, the second shaft rotating a movable grinding wheel; a sleeve, within which the second shaft rotates freely but is axially restrained, and which has a threaded lateral surface cooperating with a threaded portion rigidly coupled to the base, the movable grinding wheel being axially constrained to the sleeve; a fixed grinding wheel facing the movable grinding wheel in the interior of the grinding chamber, the fixed grinding wheel being fixedly coupled to the base frame; and a moving system that translates the sleeve axially.

A coffee grinder includes a support base containing a grinding chamber, the base housing an electric motor coupled to a first shaft, to which a second shaft rotatably coupled but which is axially free, the second shaft rotating a movable grinding wheel; a sleeve, within which the second shaft rotates freely but is axially restrained, and which has a threaded lateral surface cooperating with a threaded portion rigidly coupled to the base, the movable grinding wheel being axially constrained to the sleeve; a fixed grinding wheel facing the movable grinding wheel in the interior of the grinding chamber, the fixed grinding wheel being fixedly coupled to the base frame; and a moving system that translates the sleeve axially.

What is described is a new grinder, which serves to grind coffee beans and which is embodied as conical grinder. To improve the grinding process, the grinding cones and/or grinding ring encompass grinding surfaces that may define an angle of inclination, which may be in each case greater than 90? and smaller than 180?, relative to a tool reference plane.

What is described is a new grinder, which serves to grind coffee beans and which is embodied as conical grinder. To improve the grinding process, the grinding cones and/or grinding ring encompass grinding surfaces that may define an angle of inclination, which may be in each case greater than 90? and smaller than 180?, relative to a tool reference plane.