ES199083U - Improved device for engraving cylinders for stamping. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Device, perfected for the engraving of cylinders for printing, preferably for the printing of fabrics and paper, essentially characterized in that it comprises, in a bench, a set of two coaxial cylinders, arranged according to the length of the bed, synchronously rotating on their respective aligned axes, one of said cylinders of shorter length being the carrier of the printed pattern sheet, while the other cylinder, of multiple length of the previous one, comprises a continuous metal sheet without joining edges or perforations, one and the other envelopes of their respective carrier cylinders; and by comprising a sliding body by mechanical displacement on a spindle and on rectified guides, whose sliding horn. It constitutes the support of a photoelectric cell incident on the generatrix of the smaller cylinder carrying the clisº; because the aforementioned sliding body is linked to a rail, to which it transmits its movement, this rail moving in its corresponding guide, said rail being parallel to the larger cylinder, and said rail carrying a plurality of supports for each incident recording points on the generatrix. Of this second cylinder; because the distances between the recording tips are equal to the distance traveled by the photoelectric cell on the cylinder carrying the clisº; because the device comprises between both cylinders a set, for converting the image pulses in the photoelectric cell into mechanical pulses in the recording needle, also providing a step calculation box controlling the displacement of the sliding body and the rotation of cylinders, determining the plot of the printing, and a spark control element by high frequency, determining the formation of burrs without burr in the metal sheet. (Machine-translation by Google Translate, not legally binding)