Heating of calender roll surfaces
AssigneeThe Goodyear Tire & Rubber Company
InventorsDaniel Ray Downing, David Thomas Reese
Life of this patent
Estimating the term…
Abstract
A method and apparatus for rapid heating of calender rolls 350, 352 for a calendering apparatus 200 is disclosed. At a heating area 800, the rolls 350, 352 are preheated, reheated, or maintained at any temperature prior to the rolls 350, 352 being placed into the calendering apparatus 300. The preferred method of heating is by induction heating. The rolls 350, 352 may be delivered to the heating apparatus 802 from an initial storage area 420 or the calendering apparatus 300. The rolls 350, 352 are transported by an overhead transfer mechanism 400. The disclosed method and apparatus greatly facilitate formation of multi-layered laminates and is particularly useful in the tire building art.
Claims9
A method for calendering a material with at least one calender roll in a calender being operated at a predetermined operating temperature, the method comprising the step of replacing the at least one calender roll from time to time with a replacement calender roll wherein the replacement calender roll is heated to a temperature greater than the predetermined operating temperature from a temperature lower than the predetermined operating temperature.
Dependencies are inferred from the claim text.