One-hour roll changes.Each of the three rollers on the new Revolution Series roll stack from PTi/Processing Technologies inc. in Aurora, Ill. is driven by a powerful AC gear motor connected to the roll with a flexible drive shaft drive shaft also drive·shaft n. A rotating shaft that transmits mechanical power from a motor or an engine to a point or region of application. . This motor connection, plus linear nip activation, allows much quicker disconnection dis·con·nect v. dis·con·nect·ed, dis·con·nect·ing, dis·con·nects v.tr. 1. To sever or interrupt the connection of or between: disconnected the hose. 2. of the drive train to change a roll. Typically the rolls in a chill-roll stand are driven by chains or a gearbox gear·box n. 1. See transmission. 2. A protective casing for a system of gears. gearbox Noun the metal casing enclosing a set of gears in a motor vehicle Noun 1. on the end of the roll, either of which takes several hours to disconnect. The Revolution stack also divides the gear reduction in the drive train between two small reducers. Together with the flexible shaft A flexible shaft is a device for transmitting rotary motion between two objects which are not fixed relative to one another. It consists of a rotating wire rope or coil which is flexible but has some torsional stiffness. , this arrangement allows a roll change in an hour or less, PTi says. The diameters of the top and bottom rolls can also be changed. PTi has built at least seven of these versatile roll stands since late 2003. Tel: (630) 585-5800 * PTDirect: 493KB |
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