BALL SCREW TIRE TREAD GUIDE

摘要

Tread guides (24, 26, 28) supported on a frame (16) over a conveyor (10) have rollers (28) for engaging edges of the tread (14) on the conveyor and a constant centering force is provided by ball nuts (50, 52) in engagement with a ball screw (44) connected to a pneumatic torque applying actuator (56). Conicity adjustment (62, 66) is provided by lateral adjustment of the ball screw (44), ball nuts (50, 52) and tread guide assembly as a unit relative to the conveyor (10).