SLOT DIE POSITION ADJUSTMENT AND RETURN TO BASELINE

• Main Authors: NEAVIN TERENCE D, TRICE JENNIFER L, SECOR ROBERT B, LOUKUSA PENTTI K, BIEGLER KRISTOPHER K, BRUESEWITZ KEITH R, YAPEL ROBERT A, THOMAS PAUL C, KOPECKY WILLIAM J
• Format: Patent
• Language: English
• Published: 13.08.2015
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A method of controlling a slot die comprises, while continuing to pass the extrudate through the fluid flow path and out the applicator slot, changing the position of the actuators with the controller to either increase the cross-directional thickness of the fluid flow path adjacent each of the actuators or substantially close the fluid flow path adjacent the actuators, and after changing the cross-directional thickness of the fluid flow path adjacent each of the actuators, while continuing to pass the extrudate through the fluid flow path and out the applicator slot, repositioning each of the actuators with the controller according to the set of discrete settings to resume operating the slot die with the actuators positioned according to the set of discrete settings.