System for exposing and inverting printing plates

Details System for exposing and inverting printing plates System for exposing and inverting printing plates

G - Physics

03

D

95/36, 95/86

G03D 3/10 (2006.01) G03B 27/06 (2006.01) G03F 7/20 (2006.01)

Patent

CA 1106217

Sun - 86 (Ruth) PLATE MAKINIG SYSTEM ABSTRACT OF THE DISCLOSURE Automatic equipment is described for making multiple plate copies for an offset printing process from a single negative. A stack of plates having prepunched locating openings is provided with the emulsion side facing down and with the pile being automatically raised so that the top plate is at a particular location. A parallelogram linkage makes vacuum connection to the back of the plate, and moves the plate immediately on top of and in registry with a negative which is installed on a negative carrier plate, The plate is then exposed through the negative, and the parallelogram linkage and plate carrier then move back to the plate stack to pick up a new plate. A plate transfer mechanism then makes vacuum connection to the back surface of the exposed plate and rotates the plate, and inverts it onto a delivery belt system for delivering the exposed plate to a plate processor.

304402

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