Patent ID: 6196147
Filing Date: 2001-03-06
Classification: B22C,B26D,D05B,D10B,E21B,Y10T

Abstract:
A fold adjustment device for maintaining a uniform width in a fold of material, said fold adjustment device comprising:a guide plate adapted to receive a folded edge of a material, said folded edge having a determined width, a portion of said material folding over said guide plate along a fold line;a rotatable wheel positioned against said guide plate, said folded edge of material passing between said wheel and said guide plate, said wheel being adapted to apply a force to said folded edge of material while said folded edge of material is on said guide plate;an edge sensor for sensing an outer edge of said folded edge of material, said edge sensor detecting deviations in the location of said outer edge and sending signals indicating when a deviation is detected;a controller configured to receive signals from said edge sensor, said controller rotating said wheel in a direction opposite the sensed deviation to adjust the width of said folded edge of material in order to maintain said width within a preselected range.