Heidelberger Druckmaschinen Ag

Markem-image Csat Gmbh

Sven Kerpe

Frank Gunschera

Christian Hieb

Ralf Weiser

Peter Hachmann

Ralf Wadlinger

Markus Gerstenberger

Thomas Schäfer

Richard Burkhard Mack

Markus Möhringer

Karl-Heinz Helmstädter

Carsten Kelm

Roland Hirth

Peter Thoma

Michael Gieser

Peter Förch

Paul Nicola

Uwe Fischer

Andreas Detloff

Thorsten Eckart

Ralf Steinmetz

Günter Stephan

Michael Kr&uuml;ger

Andreas Böttger

Sven Lippardt

Manfred Koch

Frank Gunshera

Peter Bachmeier

Bernhard Falk

Sonja Wiegel

In an apparatus for imprinting a material web including a transport arrangement for moving the material web through the apparatus along stations for applying coloring agents to the material web and fixing the coloring agent applied to the web, and a web buffer arranged in the web transport direction of the material web ahead of the first imprinting station for accommodating a section of the material web moved back out of the station area upon shutdown of the apparatus, at least one clamping structure () is provided for fixing the material web () during the movement of the material web back out of the station area.

Apparatus for imprinting a material web

A device for guiding a print carrier includes nozzles. The nozzles have tongues bounded by at least one at least approximately comb-shaped contour. A machine includes the guiding device and a method is provided for producing the guiding device.

Device for guiding a print carrier, method for producing a print carrier guiding device and machine for processing a print carrier

A sheet-processing machine, particularly a rotary printing press, includes a blast-air supply system and a pneumatic sheet-guiding device connected thereto. The sheet-guiding device has a sheet-guiding surface formed with air passage openings and serves for having the sheets dragged thereover in a sheet travel direction. The air passage openings serve for expelling sheet-carrying air flows during operation. The sheet-guiding device further includes flow ducts for aligning sheet-carrying air flows. The air passage openings in the sheet guiding surface form opening cross-sections of the flow ducts in the form of slots having a length which is many times greater than the width thereof.

Sheet-processing machine with a pneumatic sheet-guiding device

A sheet-processing machine, such as a rotary press, has normally closed grippers that circulate during operation. The grippers transport the sheets along a conveying section and guide the sheets at their leading and trailing edges. The conveying section is assigned a sheet decurler and a sheet guide device that follows the latter in the conveying direction. The conveying section further has a gripper opener assigned thereto for opening the trailing edge grippers carrying the trailing edges of the sheets in order to decurl the sheets. After the sheets have traversed the decurler and decurling has been carried out, the trailing edges are once more grasped with the trailing edge grippers for renewed positive guidance.

Sheet processing machine with a sheet decurler

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-braking system and method of operation for a delivery of a sheet-processing machine, includes a braking belt revolving during operation and undergoing periodic decelerating and accelerating phases. The braking belt further includes a braking strand passable over a suction region providing a suction effect passing through the braking strand. The suction region is overlapped throughout the duration of a respective decelerating phase, by a respective sheet deposited on the braking strand.

Sheet-braking system for a delivery of a sheet-processing machine, and method of operation

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 sheet-braking device for a sheet-processing machine includes a plurality of brake modules with a revolving suction belt formed with at least one suction opening. The brake modules have assigned thereto individual drives with controls for stipulating a reference speed relative to a speed of the machine.

Device for braking sheets

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 powdering printed sheets with powder applicator devices switchable back and forth between two operating states and, in a first of the operating states thereof, serving to direct to a given destination a free stream of carrier gas carrying entrained powder, includes, in each of the powder applicator devices, a disposal line formed with an orifice region for channeling therein, in the second of the operating states, a powder gas flow formed by a respective free stream, the powder gas flow being removable by the disposal line; and a sheet-processing printing press including the powdering device, as well as a sheet-processing printing press including a device for indirectly powdering sheets.

Growing community of inventors

Eggenstein-Leopoldshafen, Germany

Sven Kerpe