Heidelberger Druckmaschinen Ag

Frank Gunschera

Sven Kerpe

Roland Hirth

Ralf Wadlinger

Christian Hieb

Uwe Fischer

Markus Gerstenberger

Detlev Berlingen

Thomas Schäfer

Peter Hachmann

Thomas Schmidt

Carsten Kelm

Claudius Haas

Ralf Steinmetz

Andreas Böttger

Sven Lippardt

Steffen Siegemund

Manfred Koch

Bettina Remarque

Ulrich Fellenberg

Frank Schramm

The invention relates to a machine for processing sheets, having a deliverer for delivering the sheets which comprises a delivery drum that is acted on pneumatically. The delivery drum has vacuum applied to it. The delivery drum also has disks for carrying the sheets, each of the disks defining vacuum channels for holding the sheets. The vacuum channels have openings and a vacuum connection. The openings and the vacuum connection together form a rotary valve cyclically applying vacuum to the vacuum channels.

Machine for processing sheets

A sheet-processing machine includes a conveyor for transporting processed sheets at a processing speed and for releasing the sheets for braking to a depositing speed. A braking element serves for the braking of the released sheets to the depositing speed. A drive is provided for the braking element, and a drive connection is provided for connecting the drive to the braking element. Further included are an overrunning clutch in the drive connection, and a brake for retarding the braking element.

Sheet-processing machine with a sheet brake

A delivery for a machine for processing flat printing materials includes sheet brakes for accepting sheets fed in a processing direction at an acceptance level and for releasing the sheets at a surrender level. The sheet brakes are adjustably disposed for varying the acceptance level and the surrender level. A machine is provided for processing flat printing materials, having the delivery.

Delivery for a machine for processing flat printing materials

A delivery includes sheet brakes and sheet supports constructed of modules including respectively identical carrier modules and braking modules with operationally revolving braking elements, the braking modules being selectively connectable to the carrier modules, and support modules selectively connectable to the carrier modules.

Delivery for a sheet-processing machine, especially a rotary printing machine

A sheet-processing rotary printing press includes a sheet guiding device over which sheets are to be pulled in a processing direction. The guiding device has a stationary first guide surface and a withdrawable second guide surface. The withdrawable second guide surface follows the stationary first guide surface in the processing direction, and forms a pocket with the first guide surface. The guiding device further includes a molded part received in the pocket and forming a third guide surface for bridging over the pocket.

Sheet-processing rotary printing press with a sheet guiding device

A delivery for a sheet-processing machine includes a sheet brake for braking processed sheets from a processing speed to an output speed, a sheet conveyor for transporting the processed sheets in a conveying direction at the processing speed and for transferring the processed sheets to the sheet brake, and a body defining a gap which, during operation, is connected to a vacuum generator and over which the sheets are pullable by the sheet conveyor for smoothing the sheets before they are transferred to the sheet brake, the gap being formed at the sheet brake; and a sheet-processing machine, more particularly, a printing machine, including the delivery.

Delivery for a sheet-processing machine with a braking and smoothing machanism

A delivery for a printing machine that processes sheets passing through the latter in a processing direction, includes sheet brakes adjustable transversely to the processing direction and a respective braking element having a vacuum passing therethrough, the braking element being cooperatable with the sheet and revolving during the operation thereof, and a supporting element through which vacuum does not pass, the respective braking element being replaceable by the supporting element for converting one of the sheet brakes to a respective sheet support adjustable transversely to the processing direction; and a printing machine having such a delivery.

Sheet braking device with replaceable support element

A delivery of a machine for processing flat printing materials, having a sheet guide surface over which the sheets are drawn during operation, with forcible guidance of an edge of the sheets extending in a processing direction, respectively, includes nozzles opening into the sheet guide surface and providing flow therethrough during operation, and a blown air curtain, formed during operation, which extends over the sheet guide surface transversely with respect to the processing direction and is aimed at a target region on the sheet guide surface. The nozzles are arranged on the sheet guide surface in accordance with a first mode and a second mode, the nozzles arranged in accordance with a first of the modes outputting during operation a flow which counteracts a volume flow, from the blown air curtain, which is deflected downline with respect to the processing direction.

Delivery of a machine for processing flat printing materials

A device for holding sheets high in order to form gaps between sheets, during operation of a sheet pile-forming sheet-processing machine, includes vertically adjustable sheet interceptors for holding sheets high. The sheet interceptors being movable into a front pile-forming region so as to penetrate a depth therein which is so small that the sheet interceptors do not come into contact with a printed region of a sheet resting on the sheet interceptors; a sheet processing machine including the holding device; and a sheet-fed printing machine including the holding device.

Device for holding sheets high

A guiding device of a machine for processing planar print carriers, the guiding device having a guide surface, over and beyond which sheets are drawn, during operation, simultaneously with positive guidance by a margin of the sheets, which, respectively, extends in a direction of sheet travel, and having nozzles terminating in the guide surface, for conducting therethrough, during operation, a flow of air for forming an air cushion between the guide surface and the respective sheet, comprising a region with a closed surface located on the guide surface, on the path of the print carrier along the guide surface, said region being disposed opposite a respective margin of a processable one of the print carriers of varying format, the margin extending laterally with respect to the direction of sheet travel.

Guiding device of a machine for processing planar printing materials

A device for forming a pile of sheets by means of a pile carrier and a stop. The stop can be swung around a horizontal geometric axis in a first direction away from the pile against a first actuating force of an actuating device and then swung back in the opposite direction by means of the actuating device while simultaneously raising the stop until reaching its alignment position on a second, higher level. So that the stop retains its alignment regardless of the level on which the stop is located, the device is provided with a guide which guide forces the vertical dislocation of the geometric axis, and with an end stop by means of which the stop is kept in the same alignment at any of the elevations assumed by the stop.

Device for forming a sheet pile for a sheet fed rotary printing press

A device for separating a sheet pile during the running operation of a pile-forming sheet-processing machine includes a separator which, when an auxiliary pile carrier is pushed into a sheet pile to be separated, is movable between a rear upper edge of the sheet pile to be separated and a following sheet for a new sheet pile, for the purpose of lifting a rear lower edge of the new sheet pile at least into an effective range of a rear sheet stop; and a pile-forming sheet-processing machine and a pile-forming sheet-fed printing machine, respectively, including the separating device. In a device for separating a stack during the continuous operation of a stack-forming sheet-processing machine, in particular a sheet-fed printing machine, a separator ( ) is provided, which, when an auxiliary stack carrier ( ) is pushed in, is moved between the rear upper edge of the stack ( ) to be separated and the new stack ( ) formed by the following sheets ( ) and which lifts the rear lower edge of the new stack ( ) at least into the effective range of the rear sheet stop ( ) of the stack-forming region.

Separating aid for a sheet-pile change in a printing machine

A conveyor chain for a gripper system-bearing chain conveyor of a printing press, the conveyor chain having standard chain links and special chain links, both types of which are formed by link pins carrying chain rollers, and chain plates articulatedly connecting the link pins to one another, the special chain links serving to connect the conveyor chain to the gripper system, includes two row-wise arranged chain-roller sections rotatable independently of one another, the chain-roller sections being disposed on the link pins of at least the special chain links; and a sheet-processing printing press with a chain conveyor including the conveyor chain.

Conveyor chain for a gripper system-bearing chain conveyor of a printing press

A delivery of a sheet-processing machine having gripper rows for drawing sheets, during operation, along a conveying section having endless conveying chains bearing the gripper rows and, during operation, running through the delivery in a revolving direction, and having a pair of chain wheels which are rotatable about a common axis of rotation, are in engagement with the conveying chains and form a deflecting region of the conveying section, includes a blast-air source for expelling an air curtain actable upon a side of the sheets being drawn past the sheet-deflecting region, that side being directed towards the axis of rotation of the chain wheels, the air curtain being movable past the sheet-deflecting region in the same direction as the grippers, while the sheets passing the sheet-deflecting region are being subjected to the action of the air curtain.

Delivery of a sheet-processing machine

A printing press having an actuator, includes a chamber partly surrounding the actuator and having a pressure prevailing therein that is greater than the pressure in the outer surroundings of the chamber.

Growing community of inventors

Nussloch, Germany

Frank Gunschera