SYSTEM AND METHOD FOR FEEDBACK CONTROL OF AN ABSORBENT CORE MANUFACTURING PROCESS

摘要

A system and a method for providing feedback control of the deposition of superabsorbent particles (326) into an absorbent core (6) at a specified rat e are disclosed. A control system (320) is used to receive feedback related to the operation of one or more elements of a vibratory feeder (332) to adjust and synchronize the elements of the vibratory feeder (332). Based on a predetermined line speed response during the ramp-up or ramp-down period, th e control system (320) can control one or more properties of the motion of a vibrator (340) of the vibratory feeder (332) in such a manner that the deposition rate of superabsorbent particles (326) is proportional to the lin e- speed of the fibrous material being supplied to provide that a substantially uniform concentration of superabsorbent particles (326) is constantly deposited.