US 12,291,018 B2
Die-cutting unit comprising a device for changing a die-cutting cylinder and method for changing a die-cutting cylinder
Michael Held, Heuchelheim (DE); and Alexander Soller, Worms (DE)
Assigned to KOENIG & BAUER AG, Würzburg (DE)
Appl. No. 18/690,491
Filed by KOENIG & BAUER AG, Würzburg (DE)
PCT Filed Nov. 30, 2022, PCT No. PCT/EP2022/083827
§ 371(c)(1), (2) Date Mar. 8, 2024,
PCT Pub. No. WO2023/099552, PCT Pub. Date Jun. 8, 2023.
Claims priority of application No. 10 2021 131 590.5 (DE), filed on Dec. 1, 2021; application No. 10 2022 100 961.0 (DE), filed on Jan. 17, 2022; and application No. 10 2022 102 147.5 (DE), filed on Jan. 31, 2022.
Prior Publication US 2024/0416643 A1, Dec. 19, 2024
Int. Cl. B41F 9/18 (2006.01); B41F 13/34 (2006.01); B41F 19/00 (2006.01)
CPC B41F 9/18 (2013.01) [B41F 13/34 (2013.01); B41F 19/008 (2013.01); B41P 2213/80 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A die-cutting unit (900) comprising a device for changing (950), the die-cutting unit (900) further comprising:
a first die-cutting cylinder (901) and an anvil cylinder (902);
the device for changing (950) comprising a second die-cutting cylinder (903) able to replace the first die-cutting cylinder (901), each of the first and second die-cutting cylinders having a respective axis of rotation (976);
the first and second die-cutting cylinders (901; 903) each being moveable between a die-cutting position (981), a change-out position (982), a move-out position (985), which is spaced apart from the die-cutting position (981), and a maintenance position (987) for set-up and/or maintenance, wherein the maintenance position (987) is disposed below the move-out position (985) and the change-out position (982) in a vertical direction (V);
the anvil cylinder (902) being arrangeable in a working position (983) and a backed-away position (984), and the anvil cylinder (902), in the backed-away position (984), being arranged in the vertical direction (V) beneath the die-cutting position (981),
characterized in that a first shortest straight connecting line (977) between the respective axis of rotation (976) of one of the first or second die-cutting cylinders (901; 903) when in the die-cutting position (981) and the respective axis of rotation (976) of one of the first or second die-cutting cylinders (901; 903) when in the move-out position (985) is inclined less than 30 degrees with respect to a horizontal plane (988), and in that a second shortest straight connecting line (980) between the respective axis of rotation (976) of one of the first or second die-cutting cylinders (901; 903) when in the move-out position (985) and the respective axis of rotation (976) of one of the first or second die-cutting cylinders (901; 903) when in the maintenance position (987) is inclined less than 30 degrees with respect to the vertical direction (V), and in that the device for changing (950) comprises a predominantly horizontal guide (959), and in that the predominantly horizontal guide (959) establishes a guide path to move one of the first or second die-cutting cylinders (901; 903) between the change-out position (982) and the move-out position (985), the move-out position (985) having the maintenance position (987) disposed therebelow in the vertical direction (V).