Printing – Multicolor – Rotary machines
Patent
1993-03-16
1995-01-24
Fisher, J. Reed
Printing
Multicolor
Rotary machines
101485, B41F 502, B41F 128
Patent
active
053833929
ABSTRACT:
A sheet processing apparatus, for example for flexographic printing and die-cutting of corrugated paperboard container blanks, has first and second successive processing sections connected by a transfer section. The sheets are successively passed through the various sections in positional registrations therewith. A sensor senses a sheet while in the transfer section and provides a signal representative of the positional registration of the sheet in the transfer section. A computer system determines from the signal whether the sheet would enter the second section in correct positional registration for processing by the second section, and adjusts as necessary the positional registration of the sheet while in the transfer section to cause the sheet to enter the second section in correct positional registration therewith. Preferably, the transfer section is a vacuum conveyor independently driven by one or more electric servo motors, the conveyor being both accelerated and decelerated to adjust sheet registration.
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"Board Converting News" published 14 Jan. 91, vol. 5, No. 1, pp. 1 & 2.
Brochure entitled "Autotron 275" by Crosfield Controls published before 1991.
Kaplan Solomon D.
Katz Boris M.
Kowalewski James M.
Bartlett Edward D. C.
Fisher J. Reed
Sherer Ronald B.
Ward Holding Company, Inc.
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