Heidelberger Druckmaschinen Ag

Heidelberg Harris, Inc.

Other

Michael A Novick

Roger R Belanger

David Charles Burke

Wayne Harvey Garland

Gary Frank Fowler

Charles Henry Dufour

Roland Thomas Palmatier

Richard B Mack

Clifford Allen Zabkar

Christopher Alan Cloutier

Chris Alan Cloutier

A folder in a signature-processing machine has a transfer cylinder and a folding cylinder. The two cylinders are mounted to be rotatable in relative counter-rotation at a substantially equal peripheral speed. They form a nip through which a signature is transported. The signature is taken up by the folding cylinder at a folding location between its leading edge and its trailing edge. In order to reduce the formation of dog-ears and crumpling when the signature tail is ripped away from the transfer cylinder, there is provided a fold-off guide at the exit side of said nip. In order to adapt for speed changes of the folder, and to allow for the fold-off guide to change its shape in synchronicity with each signature, the fold-off surface of the guide is movably disposed. The fold-off guide, in a simple embodiment, may be a flexible plate. In a dynamically varying embodiment, the fold-off guide may be cam or an eccentric with or without the intermediary of an endless belt which travels with the folding cylinder.

Fold-off guide for a folder in a paper-processing machine

A printing unit includes rotating blanket cylinders (,) and rotating plate cylinders (,). Said rotating cylinders (,) each have bearers (,) assigned to respective front sides thereof. Surface cleaning units (,) are assigned to respective surfaces (,) of said bearers (,), said cleaning units (,) having quick clamps (,) for quick clamping of wiper elements (,).

Device for cleaning bearer surfaces on rotating cylinders

The present invention is related to a paper conducting cylinder in a folder which is assigned to a rotary printing press such as a rotary newspaper printing press. A plurality of cylinder's surface sections (,) is mounted about the circumference of said cylinder (,). Each of said surface sections (,) being of layered structure comprises a compressible material (,) adhesively attached thereto. Said surface sections (,) are removably secured to mounting surfaces (,) of said cylinder (,), preferably on its side walls.

Cylinder assembly for a folding apparatus of a rotary printing press

The present invention is related to an apparatus for delivering flat products, such as signatures, in a folding apparatus of a rotary printing press. At least one fan wheel assembly has a plurality of fan blades separated from each other by fan wheel pockets. The fan wheel pockets are defined by surfaces of the fan blades. A first surface of each fan wheel pocket is configured to cause the signature to take on an energy dissipating state.

Apparatus for absorbing energy during signature delivery

A web tension measurement and control device and method for a folding machine are provided. The tension of a web over a former board is transduced by a sensor mounted on a former board adjustment rod. The former board adjustment rod is coupled at a first end to a portion of the former board near the edge at which the web departs the former board, and at a second end to a frame. The sensor transduces a signal proportional to the strain to which it is subjected. The signal is provided to a gauge for visualization of a value of the web tension, and/or to an information processing device which generates one or more control signals functions of the measured value of the web tension. The one or more control signals may be fed back to a driven roller upstream of the former board and/or to a set of nip rollers downstream of the former board in order to actuate them so as to produce a desired web tension.

Apparatus and method for measuring and regulating web tension in a

A diverter mechanism for signatures in a folding apparatus is provided including a set of high-speed tapes (3) for conveying signatures in a conveying plane (1) toward delivery stations (12, 13). Rotating diverting elements (7.1, 7.2) are integrated into the path of the high speed tapes (3). Each of the diverting elements (7.1, 7.2) has at least two rotatably mounted guiding surfaces (10) that alter the diverting direction of signatures upon rotation of the diverting elements (7.1, 7.2).

Mechanism for diverting signatures by the rotation of surfaces

A device for delivering flat products, such as signatures or the like, having a plurality of fan wheels rotatably mounted on a fan wheel shaft. The fan wheels each have a plurality of fan pockets for receiving signatures emerging from a transporting device, the fan wheels being mounted on the fan wheel shaft in spaced relation to one another in an axial direction. Adjustably mounted deceleration devices, each having a curvature for diving between the spaced-apart fan wheels, allow for a desired deceleration of the signatures upon rotation of the fan wheels.

Method and apparatus for decelerating a flat product

The present invention is directed to an apparatus, such as a folder apparatus of a web-fed printing press, having a printed product delivery with two fan wheel arrangements overlapping each other. An exemplary embodiment includes a mechanism for continuously conveying flat products. The mechanism has devices attached thereto in a timed arrangement for positioning each flat product to be delivered, in its entirety, off a centerline of the fan wheel arrangements prior to the entry of the flat product into a pocket of the fan wheel arrangements.

Method and apparatus for accelerating and diverting flat products

A device for diverting signatures into pockets of at least two slow-down devices is provided. The device includes a set of high-speed tapes (3) arranged downstream of a pair of cutting cylinders (2). A set of diverting belts (6) comprises raised surface portions (6.3) and non-raised surface portions (6.4). The set of high-speed tapes (3) is assigned to the diverting belts (6) to ride on the raised and non-raised surface portions (6.3, 6.4) thereof, thus, periodically altering a signature conveying path (1) of signatures.

Mechanism for diverting of products in a folding apparatus

A web transporting device usable in a rotary printing press or folder, includes a rotatably driven transport roller having a fixed axis and at least one engagable nip roller having an axis substantially parallel to the fixed axis and being engagable with the driven transport roller. The engagable nip roller has a length corresponding to a maximum width of the web processable in the printing press. A removable nip sleeve is provided which is axially mounted on the engagable nip roller. The removable nip sleeve has an least one ring-shaped annular gap disposed axially along its length which allows the web to ripple as it passes through the web transporting device without causing permanent wrinkles or creases to form in the web. A counterbalancing mechanism is also provided which stabilizes the engagable nip roller in a maintenance position as the removable nip sleeve is replaced.

Removable nip sleeve

A web transporting device usable in a rotary printing press or folder, includes a rotatably driven transport roller having a fixed axis and at least one engagable nip roller having an axis substantially parallel to the fixed axis and being engagable with the driven transport roller. The engagable nip roller has a length corresponding to a maximum width of the web processable in the printing press. A removable nip sleeve is provided which is axially mounted on the engagable nip roller. The removable nip sleeve has at least one ring-shaped annular gap disposed axially along its length which allows the web to ripple as it passes through the web transporting device without causing permanent wrinkles or creases to form in the web. A counterbalancing mechanism is also provided which stabilizes the engagable nip roller in a maintenance position as the removable nip sleeve is replaced.

A method of assuring orderly web travel in a folder includes stamping out of a layered structure formed of mutually superimposed web surface portions, along respective strips thereof, a plurality of tongue-like elements remaining appendant to the web surface portions and projecting through respective holes simultaneously stamped out of the web surface portions so as thereby to hold the web surface portions together at the respective strips thereof; and a device for performing the method.

Method and device for assuring orderly web travel in a folder by

A delivery device in a folding apparatus of a printing press includes a fan wheel or several fan wheels disposed next to one another. The fan wheels are formed of individual fan blades, between which fan wheel pockets are formed. Leading edges of the fan blades have a first profile and trailing edges of the fan blades have a second profile.

Delivery device in the folding apparatus of a rotary printing press

A fan delivery for a rotary printing press, includes a drive shaft, a fan arrangement including a plurality of fan blade assemblies disposed adjacent and spaced from one another on the drive shaft, signature guides formed with arcuate recesses, respectively mounted between mutually adjacent fan blade assemblies of the fan arrangement, and a device for adjusting at least some of the signature guides with respect to the fan blade assemblies for varying formats of signatures in accordance with the size of the signatures.

Growing community of inventors

New Durham, NH, United States of America

Michael A Novick