Cutting – Processes
Patent
1993-10-12
1995-09-26
Jones, Eugenia
Cutting
Processes
83 37, 83 74, 83364, 101227, B23Q 1512, B26D 500, B41F 1360
Patent
active
054526329
ABSTRACT:
Method for setting the cutting register on a cross-cutting device positioned downline of a web-fed printing press, the position of the cut edges being variable as a function of the position of the printed image on a moving web, includes scanning with a first scanning device located directly after a last printing unit of the web-fed printing press a printed image on a moving web, generating and feeding signals regarding the printed image to a control device, generating signals with an angle sensor connected to web-guiding cylinders of the web-fed printing press, and associating the angle-sensor signals with the printed-image signals in a region between two printed images and storing the signals in the control device, generating signals regarding the printed image with a second scanning device directly before a cross-cutting device in the region between the two printed images, directing the scanning device, as viewed in a transverse direction of the web, at the same line as the first scanning device, periodically generating signals by means of a sensor for the position of the cross-cutting device, feeding the periodically generated signals to the control device and associating them with the signals of the second scanning device, regulating with the aid of the control device the phase between the signals of the first scanning device and the signals of the second scanning device to a fixed value, and transmitting signals from the control device to actuators for setting the cutting register.
REFERENCES:
patent: 3276647 (1966-10-01), Lewis, Jr. et al.
patent: 3594552 (1971-07-01), Adamson et al.
patent: 4361260 (1982-11-01), Hanlan
patent: 4426898 (1984-01-01), Friberg
patent: 4618391 (1986-10-01), Torti et al.
patent: 4847775 (1989-07-01), Roch et al.
Durr Wolfgang
Rossler Georg
Spilz Rolf
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Jones Eugenia
Lerner Herbert L.
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