Bi-directional web guide

Details Bi-directional web guide Bi-directional web guide

B - Operations, Transporting

65

H

B65H 23/18 (2006.01) B65H 23/02 (2006.01)

Patent

CA 2153709

This invention relates to the steering unit of a moving web, referred to as a web guide, that has a bi-directional capability. In the guiding of a moving web, upon a paper printing press or converting machine, a steering unit is used to keep a reference edge constant to a predetermined position. A pivoted steering plate, mounted with idler rollers, is displaced by a linear actuator guiding the moving web in given direction. In this invention, a single steering unit is described that has the ability to guide the web in both its forward or reverse direction. A second steering plate is mounted upon the first. This plate has a pivot point opposite to the first steering plate, giving it the capability of steering in the reverse direction. A locking pin, in the form of a double ended cylinder is utilized to switch steering directions and utilize the same actuator.

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