A variable interference anvil and knife combination is provided to selectively sever elastics in a laminate and preferably not sever the nonwoven portions of the laminate. The distance between the anvil and the knife can be programmatically altered to provide for smaller or larger gaps as processing speeds are changed.

An ultrasound-induced positioning type puncture assembly and a sleeve type small needle knife are provided. The small needle knife includes a cutting assembly and a puncture assembly. The puncture assembly includes a puncture needle core and a puncture sleeve; an annular groove facing an ultrasound equipment probe is formed in an outer wall of the puncture sleeve along a circumferential direction; and a cross section of the annular groove is of lug-shaped.

The invention relates to a cutting apparatus for cutting segments for energy cells from a continuous web fed into a gap in a cutting plane, comprising-a rotating cutting device which is driven by means of a first drive device in a rotary movement about an axis of rotation, is arranged on one side of the gap and has at least one cutting blade protruding radially outwards from a boundary surface of the rotating cutting device, in particular a cutting drum having at least one cutting blade protruding radially outwards from a jacket surface of the cutting drum, whereinthe cutting edge of the cutting blade slides in punctiform contact on the cutting edge of the counter-blade during the rotary movement of the rotating cutting device, in particular the cutting drum, during the cutting of the continuous web, andthe first drive device is torque-controlled at least during the sliding of the cutting edge of the cutting blade on the cutting edge of the counter-blade.