A machining device for cutting and punching flat material, such as sheet metal, is disclosed. A base includes a support table for the flat material. The base defines a feed direction in which the flat material is configured to be fed into the machining device. A first cutting device is configured to cut the flat material transversely to the feed direction. A second cutting device is configured to cut the flat material in the feed direction. A separative machining unit is configured to be displaceable in the machining device relative to the base transversely to the feed direction. The separative machining unit is configured to subject the flat material to separative machining in sections.

A punching device for punching out blister packs from a blister strip having at least a first and a second punching element. The first punching element has at least one punch and the second punching element has a die. The first punching element is movable back and forth in a punching direction so that the punching device alternately assumes an open position and a closed position. At least one adjustment unit is associated with the punch and is configured to move the punch in the punching direction between an operating position and an offset position so that the punch is arranged further away from the second punching element in the offset position than in the operating position. The at least one adjustment unit has a force transmission element, which is adjustable in the punching direction in order to move the punch between the operating position and the offset position.

A knife holder for cutting machines, with a cutter head (1) for holding a knife (2) and a positioning device (3), wherein the positioning device (3) can be driven in a drive direction (4) between a standby position and a cutting position, and comprises a spring (5), with which the positioning device (3) is applied against the drive direction (4), wherein the spring (5) generates a reset force having a negative force characteristic curve in the drive direction (4).

A knife holder for cutting machines, with a cutter head (1) for holding a knife (2) and a positioning device (3), wherein the positioning device (3) can be driven in a drive direction (4) between a standby position and a cutting position, and comprises a spring (5), with which the positioning device (3) is applied against the drive direction (4), wherein the spring (5) generates a reset force having a negative force characteristic curve in the drive direction (4).