Heating of calendar roll surfaces

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...

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Bibliographic Details
Main Authors DAVID THOMAS REESE, DANIEL RAY DOWNING
Format Patent
LanguageEnglish
Published 30.06.2000
Edition7
Subjects
ACCESSORIES FOR PAPER-MAKING MACHINES
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CALENDERS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES
PAPER-MAKING
PERFORMING OPERATIONS
PRODUCTION OF CELLULOSE
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TEXTILES
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary: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.
Bibliography:Application Number: ZA19990007770