摘要:
An image forming apparatus includes: a holding body configured to hold a formed image; a conveyance unit configured to convey a recording medium with a leading end of the recording medium gripped by a gripping portion; and a transfer body including a recessed portion that accommodates the gripping portion and is provided along a direction substantially orthogonal to a rotational direction, configured to sandwich the recording medium conveyed by the conveyance unit between the transfer body and the holding body to transfer an image on the holding body to the recording medium conveyed by the conveyance unit, and including a slope surface provided at a leading end of a portion of an outer circumference not including a portion where the recessed portion is provided, the leading end being on a front end side in the rotational direction, a distance from the slope surface to a rotational center becoming larger toward a downstream side in the rotational direction.
摘要:
A printing unit has a printing form cylinder, an impression cylinder opposite the printing form cylinder and at least one substrate carrier apparatus with which a printing substrate is moved through between the printing form cylinder and the impression cylinder, wherein the substrate is printed in a printing region between the two cylinders. The substrate carrier apparatus is moved linearly during a uniform rotation of the two cylinders along a linearly extending track, limited in length by a longitudinal extension of the printing unit. The substrate carrier apparatus is accelerated from a resting start position to an operating speed, to be reached upon reaching the printing region, the substrate carrier apparatus is moved at least in the printing region at constant speed, and the substrate carrier apparatus is decelerated after leaving the printing region to a resting end position on the track.
摘要:
This invention discloses an offset printing press for printing securities, which includes an offset printing unit, inspection camera unit, and sheet quality determination unit. The offset printing unit prints a ground tint pattern on a transported paper sheet. The inspection camera unit is arranged upstream of the offset printing unit in the direction in which the paper sheet is transported, and captures an image of the paper sheet. The sheet quality determination unit determines the quality of the paper sheet based on image data output from the inspection camera unit.
摘要:
The machine comprises at least a printing cylinder (4), an inking cylinder (5) and a chain gripper transporting system (2,3) with grippers (17). The printing cylinder (4) comprises at least one transversal pit (7) for receiving said chain gripper system (3) such that the inking cylinder (5) inks the planar object (1) while said object (1) is held by said chain gripper system (3).
摘要:
The present invention relates to a sheet-feeding device for delivering printed sheets produced by a printing press, having a plurality of grippers which grasp the sheets and transport them from the printing press in the direction of a stacking device, characterized in that the sheet-feeding device is provided with at least one linear motor for transporting the grippers.
摘要:
A chain conveyor for transporting sheets in a sheet-processing printing press, having chain guide rails which, together with a holder for carrying the guide rails, define an interior having an open long side, and having conveyor chains carrying gripper systems for gripping the sheets. The conveyor chains being guidable by the chain guide rails, being formed by outer tabs and inner tabs joined together swivellably with respect to pivot axes and, on a side thereof, having cover tabs for covering the open long side, includes detent elements on the cover tabs for connecting the cover tabs form-lockingly to a respective outer tab; and a sheet-fed printing press having the foregoing chain conveyor.
摘要:
A mailroom conveyor system for transporting and handling a stream of printed and folded signatures supplied by high speed tapes of a folding apparatus of a printing press. The system includes a plurality of grippers, a rail system for guiding the grippers, an electric linear drive system for individually driving the grippers in the rail system, and a control system coupled to the electric linear drive system for individually controlling the movement of the grippers in the rail system.
摘要:
A device for the transport and deposit of sheets in a stacking region is provided. The device includes pneumatic guiding elements below the conveying path and extending across the entire width. A chain-conveyor system and a pneumatic conveyor system following the chain-conveyor system are provided. The devices also provides for selectable paths to plural delivery positions.
摘要:
A printing-material conveyor between two printing units of a printing machine. The conveyor has a displaceable section displaceable to one position for enabling access to the first printing unit or displaceable to another position for receiving printing material from the first printing unit. A transport device includes the displaceable section which is followed by a stationary section. An endless conveyor with push members extends over both sections. The displaceable section being swingable. A cover plate swingable along with the displaceable section moves to block access to the displaceable section when the latter is displaced to enable access to the first printing unit.
摘要:
Gripper bar for a delivery of a printing press, the gripper bar being carried at respective ends thereof by transport chains and having a multiplicity of grippers with gripper fingers for transporting sheets includes a hollow profiled member having a boxlike profile wherein a gripper shaft is receivable, the boxlike profiled member being formed with lateral openings through which the gripper fingers of the grippers extend.