Calendering installation for thermoplastic sheets

Details Calendering installation for thermoplastic sheets Calendering installation for thermoplastic sheets

1978-10-25

1979-10-23

Schulz, William E.

Plastic article or earthenware shaping or treating: apparatus

Press forming means, press reshaping means, or vulcanizing...

Including means to adjust relative position of a roll

425363, 425366, B29D 702

Patent

active

041719425

ABSTRACT:
A calendering installation for the production of thermoplastic sheets of uniform thickness, comprises at least three active calendering rolls, whose axles of rotation are substantially in the same plane. The diameters of the rolls are different, the diameter of the lower roll being greater than the diameter of each of the two others, and the diameter of the upper roll being greater than the diameter of the central roll. The rolls are formed of materials having different moduli of elasticity, the modulus of elasticity of the upper roll being greater than that of the central roll. The position of the bearings of at least one of the rolls is axially adjustable.

REFERENCES:
patent: 1783263 (1930-12-01), Schnuck
patent: 2525744 (1950-10-01), Willshaw
patent: 3273199 (1966-09-01), Kleinewefers
patent: 4117054 (1978-09-01), Salo

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