Patent ID: 7104172
Filing Date: 2006-09-12
Classification: B26D,B26F,B29C,Y10S,Y10T

Abstract:
1. A method for delivering a web of material having articles formed therein between a die and a punch of a trim press, the method comprising: providing a web conveyor having a canopy with a servo helper assembly, a guide member, a proximity detector, and a treadle, the proximity detector configured to detected distance of the web from the guide member indicative of the presence of excess web between the servo pick assembly and the servo helper assembly, the treadle having an article detector and a servo pick assembly, the servo helper assembly and the servo pick assembly each having at least one drive wheel and a sensor for detecting feed distance imparted by the at least one drive wheel, with the treadle being configured to move relative to the die and the punch; detecting relative feed distance imparted by the at least one drive wheel of the servo helper assembly and the servo pick assembly; detecting distance between the web and the guide member to determine presence of excess web between the servo pick assembly and the servo helper assembly; and adjusting delivery distance of the servo helper assembly relative to the servo pick assembly responsive to the detected distance between the web and the guide member to reduce the presence of excess web between the servo pick assembly and the servo helper assembly.