Method for operating an extruder, computer program, controller, and extruder

A controller for an extruder, the controller comprising:

• at least one processor;
• and
• a non-transitory computer-readable medium storing instructions,
• wherein the at least one processor is configured to execute the instructions to perform the steps of:
• detecting a torque signal which is assigned to at least one drive or at least one screw shaft;
• detecting maximum peaks of the torque signal,
• comparing the detected maximum peaks of the torque signal with a specified maximum value for the torque, and
• adjusting the torque of the at least one screw shaft based on the comparison.

An extruder comprising:

• a cylinder,
• at least one screw shaft mounted rotatably in the cylinder and drivable in rotation by a motor,
• wherein the extruder is configured to perform the steps of:
• detecting a torque signal which is assigned to at least one drive or the at least one screw shaft;
• detecting maximum peaks of the torque signal,
• comparing the detected maximum peaks of the torque signal with a specified maximum value for the torque, and
• adjusting the torque of the at least one screw shaft based on the comparison.