APPARATUS FOR GUIDING WEB-LIKE MATERIAL

摘要

An apparatus for guiding web-like materials is provided with a hollow suction box having a surface for making a contact with a continuously running web-like material. A plurality of bores are formed in the surface of the suction box within a region corresponding to the maximum sheet width at a suitable pitch. Each of the bores have a smaller diameter at its inner side than at its outer side. A sucking mechanism of adjustable pressure is provided in communication with the cavity of the hollow suction box. A damper is disposed at the duct of the sucking mechanism and is used for adjusting the pressure in suction box.