Die-cutting unit comprising a device for changing a die-cutting cylinder and method for changing a die-cutting cylinder

A die-cutting unit (900) comprising a device for changing (950) a die-cutting cylinder (901), the die-cutting unit (900) comprising at least one die-cutting cylinder (901) having an axis of rotation (976) and comprising at least one anvil cylinder (902);

• the device for changing (950) comprising at least one further die-cutting cylinder (903) to replace the at least one die-cutting cylinder (901);
• the die-cutting cylinders (901;
• 903) being arrangeable in several positions (981;
• 982;
• 985;
• 986;
• 987) in the device for changing (950);
• one of the die-cutting cylinders (901;
• 903) being arrangeable in a die-cutting position (981);
• the anvil cylinder (902) being arrangeable in a working position (983);
• a processing point (909) of the die-cutting unit (900) being formed by the die-cutting cylinder (901;
• 903) arranged in the die-cutting position (981) and the anvil cylinder (902) arranged in the working position (983);
• the anvil cylinder (902) being arrangeable in a backed-away position (984);
• one of the die-cutting cylinders (901;
• 903) being arrangeable in a waiting position (986) for guiding the two die-cutting cylinders (901;
• 903) past one another;
• and the waiting position (986) being a position outside a direct guide path between the die-cutting position (981) and a maintenance position (987) for the set-up and/or maintenance of one of the die-cutting cylinders (901;
• 903), characterized in that the waiting position (986) is arranged lower, in the vertical direction (V), by no more than 100 percent of a diameter (D901) of the die-cutting cylinder (901) in the die-cutting position (981) or is located above the die-cutting position (981).

A method for changing a die-cutting cylinder (901) of a die-cutting unit (900), the die-cutting unit (900) comprising at least one die-cutting cylinder (901) and at least one anvil cylinder (902);

• a processing point (909) of the die-cutting unit (900) being formed by the die-cutting cylinder (901;
• 903) arranged in the die-cutting position (981) and the anvil cylinder (902) arranged in the working position (983);
• the at least one die-cutting cylinder (901) being exchanged for at least one further die-cutting cylinder (903) by means of a device for changing (950);
• the die-cutting cylinders (901;
• 903) being arrangeable in several positions (981;
• 982;
• 985;
• 986;
• 987) in the device for changing (950);
• the anvil cylinder (902) being first displaced into a backed-away position (984) and the at least one die-cutting cylinder (901) being displaced in a subsequent step from a die-cutting position (981) into a change-out position (982);
• and one of the two die-cutting cylinders (901;
• 903) being arranged in a waiting position (986), outside a direct guide path between the die-cutting position (981) and a maintenance position (987) for set-up and/or maintenance, for guiding the die-cutting cylinders (901;
• 903) past one another, that the waiting position (986) is a position outside a direct guide path between the change-out position (982) and the maintenance position (987), and in that the waiting position (986) is arranged lower, in the vertical direction (V), by no more than 100 percent of a diameter (D901) of the die-cutting cylinder (901) in the die-cutting position (981) or is located above the die-cutting position (981).