Electric Drives and Controls – Printing and Converting Applications – Napkin Machine Functional Challenges Surface Unwind feeds material in to top and bottom piles Slicing Rolls provide clean slicing at high speeds Tension Rolls maintain precise web tension Calendar Rolls maintain precise web speed for the calendaring process Perforator pierces web material to ensure each sheet is of equal length Slitter/Trimmer slits and trims material edges Folder folds product consistently for large range of product sizes Rexroth Solution IndraMotion MLD provides scalable, drive-based motion control platform with integrated Motion-Logic functions standardized in accordance with IEC 61131-3 and PLCopen Built-in Electronic Line Shaft (ELS) functionality within the drives can be assigned to control precise speed, or phase synchronization, or pre-defined cam profiles Dynamic phase and velocity corrections Tension control via load cell or dancer feedback for fine gain adjustment to within 0.000001% resolution IndraDrive Mi motor-integrated drive solutions reduce cabling, speed machine design and conserve energy IndraControl V HMIs provide complete visualization and operator control systems, both panel-based and PC-based Ethernet-based open communications architecture supporting SERCOS, Profibus-DP, DeviceNet and other industry-specific protocols for enhanced flexibility Inline I/O modules efficiently integrate sensors, feedback devices, other components into true printing/converting automation platform Manufacturing Benefits Fully shaftless machine: eliminates transmission error of mechanically geared drive train, lengthens machine lifecycle and eliminates machine noise and vibration by isolating disturbances Improved cut accuracy: Achieved through precise tension control and accurate synchronization of all axes Increase production: Utilizing automated machine set-up through recipe selection, increase speed by replacing mechanical components with servo technology Shorter machine commissioning: Easy to use set-up tool (IndraMotion MLD), modular debugging of machine segments Maximum flexibility: Machine functionality can be quickly/economically added for product enhancements Open architecture: SERCOS III with IndraMotion MLD allows for easy expansion by simply connecting additional drive modules to the SERCOS ring Fieldbus Communications: real-time integration of automation sensors, systems diagnostics and online monitoring tools Applications Assistance Improve the performance and value of your Napkin Machine: Contact us today.