Rotary die cutting device and method for setting a gap dimension of a gap between a die cutting cylinder and a counter pressure cylinder of the rotary die cutting device

A method for setting a gap dimension of a gap between a die cutting cylinder and a counter pressure cylinder of a rotary die cutting device, comprising:

• providing a control system comprising a controller, at least one sensor, and an adjusting device actuated by the control system;
• setting a desired trained criterion;
• sensing, via the at least one sensor, at least a die cut along a perimeter of a workpiece being processed from a desired state which includes a set of one or more detectable parameters with quantifiable and measurable variables, wherein the at least die cut along the perimeter of the workpiece is compared to the desired state and a deviation or an error is determined, wherein the deviation or error is used to determine a signal to send to the adjusting device to achieve a desired result;
• and
• actuating the adjusting device in response to the at least one sensor sensing the deviation from the desired state, thereby adjusting the gap dimension between the rotary die cutting device and the counter pressure cylinder, wherein actuating the adjusting device is achieved as a result of the control system operating in a closed feedback loop;
• wherein subsequent to the deviation being directed between the die cutting cylinder and the counter pressure cylinder, the gap between the die cutting cylinder and the counter pressure cylinder is adjusted to return the workpiece to the desired state pursuant to the trained criterion that was saved and subsequently retrieved to maintain the desired state;
• wherein setting the desired trained criterion depends on a change in properties of the workpiece;
• wherein during operation of the rotary die cutting device, a backing web and an overlying second web of the workpiece are directed between the die cutting cylinder and the counter pressure cylinder, the second web becoming punched labels and a matrix web of the workpiece subsequent to being directed between the die cutting cylinder and the counter pressure cylinder;
• wherein sensing by the at least one sensor occurring in an absence of or prior to separation of the punched labels, the backing web, and the matrix web from one another;
• and
• wherein sensing by the at least one sensor occurring with or without disruption of operation of the rotary die cutting device.