摘要:
A printer drum (10) includes a leading edge (32) assembly for holding a first end of a substrate, and a trailing edge assembly (34) for holding a second end of the substrate. The leading edge assembly includes a first plurality of interconnected disks (12a), and the trailing edge assembly includes a second plurality of interconnected disks (12b). The disks of the two assemblies are interleaved such that the disks of the trailing edge assembly are rotatable relative to the disks of the leading edge assembly about the axis of rotation of the drum. A balancing disk is interleaved with the disks. A leading edge clamp (20) interconnects the first plurality of disks, and a trailing edge clamp (22) interconnects the second plurality of disks. A plurality of registration pins (100) of the leading edge clamp selectively engage a substrate held by the clamp.
摘要:
Bei einem Zylinder für Tiefdruckmaschinen mit einer Einrichtung zum Spannen von Wickelplatten (11), die ein um die Zylinderachse schwenkbares Spannstück (5) mit einer der Zylinderaußenkontur entsprechenden Außenkontur aufweist, lassen sich dadurch eine exakte zylindrische Kontur der aufzuspannenden Wickel platte (11) auf dem Zylinderumfang und gleichzeitig ein geringer Spannweg in Umfangsrichtung erreichen, daß das um die Zylinderachse schwenkbare Spannstück (5) eine um eine zur Zylinderachse (2) parallel versetzte Achse (15) zusätzlich schwenkbare, mit einem Klemmorgan (22) zusammenwirkende Schnabelkante (8) zur Aufnahme einer zugeordneten Einhängklaue der Wickelplatte (11) aufweist.
摘要:
Plate-holder skirt for removable-skirt lithographic printing presses, suitable for printing in many colours on cylindrical bodies and the like, constituted by a cylindrical body (1) having, along one of its generatrices, at least three radially-protruding pins (8) on which an equal number of holes present along a side of a plate are slid, said holes being obtained during the photoengraving process, by a punching preliminarily carried out on the same plate and on all of the plates which compose the image to be printed, by at least one bar for the fastening of the edge of said plate to the skirt (14), and by at least another bar (17, 17a), fastened to the opposite side of the plate, and fixable to the ends of two arch-shaped elements, hinged onto the front faces of the cylindrical body, so to be able to be turned against the same cylindrical body, thus carrying out the tensioning of the plate, in counteraction to spring elements, or the like, able to secure the regular tensioning of the same plate during the printing process.
摘要:
Plate-holder skirt for removable-skirt lithographic printing presses, suitable for printing in many colours on cylindrical bodies and the like, constituted by a cylindrical body (1) having, along one of its generatrices, at least three radially-protruding pins (8) on which an equal number of holes present along a side of a plate are slid, said holes being obtained during the photoengraving process, by a punching preliminarily carried out on the same plate and on all of the plates which compose the image to be printed, by at least one bar for the fastening of the edge of said plate to the skirt (14), and by at least another bar (17, 17a), fastened to the opposite side of the plate, and fixable to the ends of two arch-shaped elements, hinged onto the front faces of the cylindrical body, so to be able to be turned against the same cylindrical body, thus carrying out the tensioning of the plate, in counteraction to spring elements, or the like, able to secure the regular tensioning of the same plate during the printing process.