Method, arrangement, device and magazine for automatic changing of knife units of a knife ring of a knife ring slicing device

A method for automatically exchanging knife units of a knife ring of a knife ring slicing device, the method comprising the steps of:

• a) providing a knife ring with first knife receptacles;
• b) providing a knife changing magazine at one side of the knife ring, the knife changing magazine having second knife receptacles;
• c) moving the knife changing magazine at the one side of the knife ring relative to the knife ring into a first knife changing position, wherein in the first knife changing position at least two of the second knife receptacles of the knife changing magazine are axially aligned with at least two of the first knife receptacles of the knife ring;
• d) releasing at least two worn knife units arranged in the first knife receptacles from the knife ring;
• e) moving the at least two knife units in a first axial direction out of the knife ring and thereby pushing the at least two knife units in the first axial direction into empty ones of the second knife receptacles within the knife changing magazine;
• f) carrying out a relative movement between the knife changing magazine and the knife ring, while the knife changing magazine is at the one side of the knife ring, until the knife changing magazine and the knife ring are in a second knife changing position in which the at least two second knife receptacles provided with resharpened knife units are axially aligned with the at least two first knife receptacles in the knife ring from which the knife units have been removed in the step e);
• and
• g) pushing out the at least two resharpened knife units in a second axial direction opposite the first axial direction from the magazine and and thereby introducing the at least two resharpened knife units in the second axial direction into the at least two first knife receptacles of the knife ring from which the at least two knife units have been removed in the step e).