Roll calenders for calendering rubber or synthetic plastics mate

Details Roll calenders for calendering rubber or synthetic plastics mate Roll calenders for calendering rubber or synthetic plastics mate

1975-09-10

1976-11-23

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

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

425471, 425DIG235, 308 22, B29C 1500

Patent

active

039934241

ABSTRACT:
A roll calender, for calendering rubber or synthetic plastics materials and including roll counter bending means and roll oblique positioning means, wherein at least one roll of the calender has journal portions at the ends thereof supported in main support bearings and outer end portions of the journals engaged in spherical bearings, an outer portion of each spherical bearing has each of its two opposite sides rigidly connected to a respective hydraulic cylinder, each hydraulic cylinder has a piston therein with the piston secured to a vertical piston rod, intermediate the ends of the piston rod, such that counter bending of the roll can be effected by pressurisation of the hydraulic cylinders selectively above or below the pistons, and the ends of the piston rod are engaged in respective grooves in respective fixed support members such that said ends are movable horizontally in said grooves in directions substantially perpendicular to the axis of the roll to allow the axis of the roll to be moved into oblique relationship with the axis of a co-operating roll located above or below said roll.

REFERENCES:
patent: 2335800 (1943-11-01), Sheperdson et al.
patent: 2825217 (1958-03-01), Byrd
patent: 3016819 (1962-01-01), Kupka
patent: 3023695 (1962-03-01), Kuster
patent: 3140900 (1964-07-01), Martin
patent: 3263284 (1966-08-01), Orr et al.

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