Apparatus for positioning an advancing web

摘要

An apparatus may be used to control the cross-directional movement of a web advancing in a machine direction. The web defines a machine direction centerline. The apparatus may include a frame rotatable about a first axis of rotation and a guide member connected with the frame and configured to receive an advancing web. The apparatus may include a first rotation member connected with the frame and configured to rotate the frame by a first angle of rotation about the first axis of rotation to align a machine direction centerline of the advancing web with a target cross-directional position. The apparatus comprises a second rotation member connected with the frame and configured to rotate the frame about a second axis of rotation by a second angle of rotation to adjust the target cross-directional position, wherein the second angle of rotation is greater than the first angle of rotation.

主权项

1. An apparatus for controlling cross-directional movement of a web advancing in a machine direction, wherein the web defines a machine direction centerline, the apparatus comprising:
a frame having a first end portion and a second end portion separated by a central portion, wherein the frame is rotatable about a first axis of rotation; a first rotation member movably connected with the frame, wherein the first rotation member is configured to rotate the frame by a first angle of rotation about the first axis of rotation; and a second rotation member movably connected with the frame, wherein the second rotation member is configured to rotate the frame about a second axis of rotation by a second angle of rotation, wherein the second angle of rotation is greater than the first angle of rotation, and wherein the second rotation member comprises a rotation aperture and a locking member, wherein the locking member is connected with the frame and extends through the rotation aperture.