Squeegee pressing device in a screen printing machine

Details Squeegee pressing device in a screen printing machine Squeegee pressing device in a screen printing machine

1981-12-10

1983-03-15

Coughenour, Clyde I.

Printing

Stenciling

Stationary-inker machines

101126, B41L 2736, B41L 1302

Patent

active

043764126

ABSTRACT:
A device for pressing a squeegee for printing used in a screen printing machine. A screen plate is reciprocated and printing paper sheets are fed to the lower surface zone of the screen plate in timing with forward movement of the screen plate. A differential gearing is operatively associated with a cam driven from a drive source for the printing machine, and a link mechanism actuated by said cam, so that the squeegee is lowered by operation of the differential gearing and the screen plate is pressed by said squeegee for printing. In case of dismounting the screen frame from the machine frame for cleaning the screen plate, the casing for the differential gearing is rotated by drive means for raising the squeegee a larger distance stroke. The link mechanism is not driven into operation when the casing for the differential gearing is rotated during such upward travel of the squeegee.

REFERENCES:
patent: B395554 (1976-03-01), Zimmer
patent: 2017706 (1935-10-01), Whedwright
patent: 2105572 (1938-01-01), Williams
patent: 2369290 (1945-02-01), Foard
patent: 3885493 (1975-05-01), Jaffa

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