Engagement pressure measuring apparatus for rollers in printing

Details Engagement pressure measuring apparatus for rollers in printing Engagement pressure measuring apparatus for rollers in printing

1981-06-05

1983-09-06

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to force

73768, 7386253, 7386258, G01L 102, G01B 716

Patent

active

044022328

ABSTRACT:
To permit adjustment of the engagement pressure of mutually engaged roller elements, such as bearer rings (1, 3) or rubber blanket cylinders (31-34) against an impression cylinder or plate cylinders (35-38), a blind bore (4) is formed in the respective roller elements in a zone where engagement pressure will result in deformation in a wall of the blind bore, the bore being filled with a fluid such as hydraulic fluid, silicone, or the like, the pressure of which is determined by a pressure transducer such as a piezoelectric element coupled, through an amplifier, to a peak detector which indicates pressure upon axial alignment of the blind bore (4) and the axes of rotation of the respective engaging rollers. A base pressure in the chamber can be adjusted by an outside adjustment screw which, like the transducer, is preferably carried on an external adapter element attached to the respective roller.

REFERENCES:
patent: 1425506 (1922-08-01), Boulassier

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