Heidelberger Druckmaschinen Ag

Heidelberger Druckmaschinen

Other

Richard Burkhard Mack

Roland Hirth

Rainer Klenk

Udo Lautenklos

Ralf Weiser

Gerd Raasch

Erich Michael Zahn

Peter Gamperling

Martin Mayer

Bernhard Wagensommer

Peter Thoma

Carsten Kelm

Norbert Thunker

Sven Kerpe

Michael Voge

Gunter Stephan

Klaus Thome

Jurgen Zeltner

Georg Roessler

Edmund Klein

Joachim Herrmann

Bernhard Waltenberger

Michael Szeidl

Bernd Stephan

Bernd Maul

Thomas Mc Krell

Dieter B&auml;cker

Frank Gunshera

Dieter Bäcker

A belt drive for a machine for printing images on a flat printing material, having a continuous belt revolving during operation, includes a belt guide having stops for two protruding edges of the belt, the edges being oriented in a longitudinal direction of the belt and opposite one another in a transverse direction of the belt; and a machine for printing images on flat printing material having such a belt drive.

Belt drive

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

The delivery for a sheet-processing machine, such as a sheet-fed rotary printing press, has several braking devices which are movable transverse to a sheet transport direction. The delivery also has a sheet guiding elements that respectively cover the interspaces between adjacent braking devices at a level of the top edges. The sheet guiding devices are formed from a flexible tape material. The length of the tape transverse to the direction of sheet transport and seen from above is adjustable to the spacing between the adjacent braking devices.

Delivery for a sheet processing machine, particularly for a sheet-fed printing machine

A device for removing proof sheets and reject sheets from a side of a delivery of a sheet-processing machine includes a collecting container for accommodating removed sheets therein in an operating position of the container, the container being displaceable into a park position wherein it is located above the delivery; and a sheet-processing machine, in particular, including the sheet-removing device.

Device for removing proof sheets and reject sheets from a sheet-processing machine

A device for braking sample and defective sheets of a machine for processing sheet-like printing materials includes a sheet-guiding part for guiding a sheet therealong, a roller resting on the sheet-guiding part and being movable at least in a vertical direction, for braking a sheet guided between the sheet-guiding part and the roller; and a machine for processing sheet-like printing material, such as a printing machine, including the braking device.

Device for braking sample and defective sheets of a sheet-processing machine

A suction belt conveyor for a sheet processing machine includes an operationally revolving endless suction belt having, at an outer side thereof a filigree structure formed by indentations, the suction belt being formed with penetrating bores terminating in the indentations. In a variation of the foregoing, the suction belt conveyor for a sheet processing machine includes an operationally revolving endless suction belt formed with pores distributed in longitudinal and transverse directions of the suction belt, so that the suction belt is air permeable.

Suction belt conveyer for a sheet processing machine

A belt drive for a machine for processing flat printing materials includes an endless belt revolving during operation, a roller about which the belt is partially looped, a frame with respect to which the roller is adjustable between a working position, wherein the roller keeps the belt tensioned, and a position moved away from the working position, wherein the belt is untensioned, and a spring device for biasing the roller into the working position thereof. Also included are a double crank by which the roller is articulated with the frame, and a stop which, due to a change in position of the double crank from a position corresponding to the working position of the roller into a position corresponding to the moved-away position of the roller, is carried out to a given extent beyond a dead-center position of the double crank, prevents a change in position beyond the given extent; and a machine for processing flat printing materials, which includes the belt drive.

Belt drive for a machine for processing flat printing materials

A delivery of a sheet-processing printing machine having operationally revolving grippers for transferring processed sheets to a sheet brake in a conveying direction includes sheet guides for acting upon lateral borders of the sheets, as viewed in the conveying direction, and for guiding the sheets as they are transferred to the sheet brake.

Delivery of a sheet-processing printing machine

A hurdle board assembly for separating sheet piles in a delivery of a sheet-fed printing machine includes a hurdle board. A plurality of spacer elements are connected to the hurdle board at locations in the vicinity of the border of one surface of the hurdle board. The spacer elements are respectively movable between a condition wherein they are retracted into the hurdle board and a condition wherein they extend vertically from the hurdle board. Respective prestressing devices are provided for prestressing the spacer elements, respectively, in a direction in the condition wherein the spacer elements, respectively, extend from the hurdle board. Respective locking devices are provided for securing the spacer elements, respectively, in the retracted condition. The locking devices are deactivatable from a side of the hurdle board so as to release the spacer elements.

Hurdle or rack board for sheet-fed printing machines

A device for depositing paper sheets, in particular on a sheet pile or stack in a delivery of a printing machine, includes a revolving belt, a drive motor for driving the revolving belt separately from any other drive system, and at least one suction device having a discretely effective suction action, the suction device being disposed on the revolving belt, the revolving belt being constructed as a toothed belt for transmitting torque and synchronicity between the drive motor and the suction device; and a method of operating the depositing device.

Device and method for depositing printed sheets on a stack without

Device for the transport and deposit of sheets in a stacking region of a

A device for automatically performing nonstop pile changing in a delivery of a printing press, preferably having a high printing speed, includes a separator sword movable sidewise between two sheets for forming a gap therebetween, and supporting an upper one of the two sheets at a trailing-edge region thereof until an auxiliary pile carrier has reached an inserted position thereof The separator sword cooperates with a restraining or holding device formed as a separator wedge, so that the separator wedge is slidable under the separator sword and firmly holds the upper sheet at the trailing-edge region thereof by suction until the auxiliary pile carrier has been inserted

Device for forming an auxiliary sheet pile during a nonstop pile change

A rotary printing machine with a sheet-surface treating device disposed between a last cyclically operating printing unit and a device for conveying sheets on a sheet pile, the sheet-surface treating device including at least one fixed drier past which the sheets are guidable, includes at least one module composed of two rotating conveying elements having a like circumferential speed for transporting the sheets along the sheet-surface treating device, the conveying elements carrying grippers for grasping a respective leading edge of one of the sheets, the sheets being supplied to the module and discharged from the module, respectively, during a rotation of the grippers in accordance with a printing cycle, a plurality of gripper arms, the grippers of a respective conveying element disposed first along a conveying path of the sheets being carried by at least one of the gripper arms, guiding elements for freely guiding the sheets otherwise, the grippers of the conveying element disposed second along the conveying path of the sheets being carried by at least one of the gripper arms, and rotating curved supporting elements arranged in cicumferential direction between the gripper arms so that the sheets are disposable thereon.

Rotary printing machine with a device for treating the surface of sheets

A device and a method for acting upon sheets in a sheet delivery system of a printing press, wherein sheets can be printed selectively on one side and on both sides thereof, includes a sheet tautener having a surface by which it is integrated into at least one adjacent sheet feeding plane, mounting supports for the sheet tautener, and adjacent air nozzles for forming an air cushion on the sheet tautener when the printing press is in a single-sided printing mode for printing on one side thereof and is in a first-form and perfecter printing mode for printing on both sides thereof.

Device and method for acting upon sheets in a sheet delivery system

Method for depositing different products produced by a printing press in a continuous printing operation, the printing press having at least one controllingly variable printing form, includes separating the products from one another in accordance with a control varying the printing form, and feeding the products individually to a further processing location, and a device for performing the method.

Growing community of inventors

Bruehl, Germany

Richard Burkhard Mack