摘要:
Sheet perfecting apparatus for a satellite-type printing press by which double-side printing is performed with a single satellite-type press and if sheet perfecting is not needed the sheet is printed on one side only. In the course of printing with a plurality of printing units (26) which are provided in satellite-like manner around a common pressure cylinder (10), a plurality of chain gripper conveyors (38, 42) are arranged in parallel and are connected via a perfecting cylinder (40) to invert the sheet of material.
摘要:
The present invention is directed to a method and apparatus for providing positive control of a printable medium in a printing system such that high speed processing of the printable medium can be achieved without damage to the product (e.g., printed signatures). Exemplary embodiments are directed to a carrier system which contacts (e.g., grips) the printable medium from both sides to provide positive control over the printable medium as it is transported from one area of positive constraint (e.g., a folding mechanism of a folder device) to another area of positive constraint (e.g., transport tapes and/or a signature deceleration device located downstream of the cutting cylinders).
摘要:
The printed products, overlapping one another in an imbricated manner, are moved, by means of the conveying device, past the first printing station in a conveying direction, where the first outer side of the printed products is provided with typographical labeling in the exposed border region. Before the printed products are guided past the second printing station, the border region of the second outer side of the printed products is exposed; for example by turning over the printed products. Printed products are then provided with typographical labeling in the border region by means of the second printing station.
摘要:
A gripper bar conveyor mechanism for transferring sheets to be printed from one rotating impression cylinder to another in a multiple color rotary offset printer of the type having sets of impression cylinders and corresponding blanket cylinders for rolling contact with the sheets to be printed therebetween. The gripper bar conveyor mechanism includes a transferrable gripper bar activatable for releasably securing sheets to be printed in a fixed orientation with respect to the transferrable gripper bar. The registration projection is affixed to the transferrable gripper bar. A registration pocket is adjustably affixed to each of the impression cylinders for temporarily receiving the registration projection of the gripper bar and thereby holding the gripper bar in a desired position with respect to the impression cylinder. A conveyor band is attached to the gripper bar and is operably connected to the rotary offset press for moving the gripper bar from one impression cylinder to the next. The registration projection is engaged in the registration pocket at each of the impression cylinders during a portion of the impression cylinder rotation which is sufficient to initialize rolling contact of the sheet to be printed in proper registration between the impression cylinder and the corresponding blanket cylinder at each set of impression and blanket cylinders.
摘要:
A holding device (1) for a succession of sheet-shaped elements circulating in a processing machine (100) along conveying path T. The holding device (1) has two series (10, 20) of a plurality of suction members (11, 21). At least one series of suction members 20 extends along and is movably mounted parallel to the transport path T of the sheets, between a retracted position and a deployed position. Each series is in an array, parallel to the transport path and the suction members are arranged spaced apart alongside one another, so that the array of members extend perpendicular to the conveying path T of the sheets and the suction members (11, 21) of each series (10, 20) are transversely offset relative to the suction members (11, 21) of the other series (10, 20).