Mixing device for providing a ready-to-use compound, and working method for same

A method for operating a mixing device for preparing a ready-to-use compound comprising at least one component (B or H), which is to be mixed before use, in a cartridge (5) with a tubular mixing rod (6), wherein

• the cartridge (5) has a storage and mixing space (51) with compensating piston (52) for at least one of the components (B or H) of the composition,
• the tubular mixing rod (6) engages through a bottle neck-like section (53) of the cartridge (5) in a rotatable and laterally displaceable manner in the storage and mixing space (51),
• the tubular mixing rod (6) has a mixing head (61) at its end in the storage and mixing space (51) and
• the tubular mixing rod (6) has a plate-shaped coupling element (62) at the outer end,
• with
• a cartridge holder (1) for receiving the cartridge (5) to be prepared,
• a counter-pressure cylinder (13) assigned to the cartridge holder (1) for pressurizing the compensating piston (52) of the cartridge (5),
• a mixing stroke cylinder (16) for laterally moving the cartridge holder (1),
• a fixedly arranged holder (2) for the coupling element (62) of the mixing rod (6), which receives the mixing rod (6) rotatably but fixed in the longitudinal direction, and
• a drive means (4) for generating a rotary movement about a longitudinal axis relative between the mixing rod (6) and the cartridge (5),
• wherein the method comprises
• feeding the cartridge (5) with its bottle neck-like section (53) to a clamping means (17) of the mixing device and clamping is clamped on the bottle neck-like section (53) with this clamping means (17),
• then subsequently actuating the mixing stroke cylinder (16) for moving the cartridge holder (1) with the downwardly projecting, tubular mixing rod (6) and its plate-shaped coupling element (62) until the plate-shaped coupling element (62) touches the holder (2),
• wherein the plate-shaped coupling element (62) is then clamped on the holder (2) by clamping arms (21).