EP0780332B1 - Device for acting on sheets in a sheet delivery apparatus - Google Patents

Device for acting on sheets in a sheet delivery apparatus Download PDF

Info

Publication number
EP0780332B1
EP0780332B1 EP96117816A EP96117816A EP0780332B1 EP 0780332 B1 EP0780332 B1 EP 0780332B1 EP 96117816 A EP96117816 A EP 96117816A EP 96117816 A EP96117816 A EP 96117816A EP 0780332 B1 EP0780332 B1 EP 0780332B1
Authority
EP
European Patent Office
Prior art keywords
sheet
air
acting
sheets according
deformation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96117816A
Other languages
German (de)
French (fr)
Other versions
EP0780332A3 (en
EP0780332A2 (en
Inventor
Richard Mack
Bernhard Waltenberger
Bernd Stephan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0780332A2 publication Critical patent/EP0780332A2/en
Publication of EP0780332A3 publication Critical patent/EP0780332A3/en
Application granted granted Critical
Publication of EP0780332B1 publication Critical patent/EP0780332B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68Reducing the speed of articles as they advance
    • B65H29/686Pneumatic brakes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52Stationary guides or smoothers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00Means using fluid
    • B65H2406/10Means using fluid made only for exhausting gaseous medium
    • B65H2406/11Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00Application field
    • B65H2801/03Image reproduction devices
    • B65H2801/21Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for acting on sheets in one Sheet delivery one of the sheets optionally printing on one or two sides Printing machine, with a sheet tensioner, which has a first deformation area and has a second deformation area, according to the preamble of Claim 1.
  • This Sheet straightener has two supporting bodies that can be supplied with overpressure and one with Vacuum smoothing gap. None of that as a deformation area effective support body can be acted upon with suction air.
  • the bow straightener not integrated with its surface in an adjacent sheet conveying plane and is also not washed over by an air cushion.
  • DE 44 27 897 C1 also discloses a device for acting on one Bow. It is a sheet straightener for removing curls when printing on one side and a guide device for contact-free guidance of the sheets with double-sided printing intended.
  • the sheet straightener is stationary in relation to the machine frame the guideway of the guide device reset position attached and it a guide element is provided in the form of a plate which is used to cover the Sheet smoothers with double-sided pressure in the space between sheet guide and Bow straightener is movable.
  • an actuating cylinder unit is required, which shows the interchangeability of the straightener - about for cleaning purposes - disabled.
  • the sheet straightener forms a depression, a trough in the sheet conveying plane, which is responsible for the uniformity of the Bow promotion is not an advantage.
  • the invention has for its object a device for action Sheets in the sheet delivery either one-sided or two-sided printing press with a two deformation areas
  • a trouble-free sheet transport is guaranteed and at the one Lubricating the sheets in face and back printing operations is even more reliable than with existing such devices is avoided.
  • this object is achieved by a device with the features of claim 1 solved.
  • the device for acting on sheets in the sheet delivery of the sheets either one-sided or two-sided printing press, with one Bow tensioner, which has a first deformation area and a second is characterized in that that the sheet tensioner with its surface in an adjacent sheet conveying plane is integrated and with one-sided printing and perfecting Air cushion is washed over and that the first deformation area with suction air is acted upon.
  • the air is flushed in Build up an air cushion from one of the adjacent baffles Sheet conveying plane.
  • the adjacent baffles of the sheet conveying level are pressurized with low pressure air.
  • Another advantageous embodiment of the bow tensioner comprises arched executed deformation areas that are executed opposite to each other.
  • the deformation areas can be provided with individual air nozzles that are extend in a row across the width of the sheet boom.
  • One of Deformation areas of the sheet tensioner are subjected to suction air during the opposite second deformation area can be acted upon by compressed air.
  • the Pressure level for suction or blowing air for the two deformation areas mentioned the sheet tensioner is slightly higher than the pressure level in the Sheet conveying plane.
  • the sheet tensioner can be replaced more easily Design with snap locks, with which he can be equipped can be locked in or removed from the side walls in a few simple steps is.
  • Snap locks is a simple pivoting or removing the Bow tensioners guaranteed in just a few simple steps.
  • the sheet tensioner is in the direction of sheet travel viewed first deformation area of the sheet tensioner with suction air, during the second deformation region of the Blown air is applied to the sheet tensioner.
  • a sheet tensioner 6 the in the sheet conveying plane, the guide plates 1 and 2 are added is.
  • the parts of the sheet conveying level 1 or 2 are with a Large number of air jets directing in different directions Air nozzles 3 provided and formed from individual profiles 14, limit the cavities 4 and 5 respectively.
  • a sheet tensioner 6 is mounted between an edge 15 of the Sheet conveying plane 1 and the opposite edge of the Sheet conveying plane 2. This is by means of 7 and 8 designated locking bolts or Mounts in the side walls of the Sheet delivery of the printing press.
  • the sheet tensioner 6 comprises one in the sheet running direction 18 seen first deformation area 11 and a second Deformation area 12, both of which have a curved surface exhibit.
  • the bow tensioner 6 is of two Boundary walls 10 laterally limited. With reference number 9 is a connection for the air supply to the sheet tensioner designated. Between the surfaces that run down the deformation areas 11 and 12 have remained a gap, through which the deformation areas 11 and 12 from each other are separated.
  • FIG. 2 is a plan view of the between the Baffles 1 and 2 shown sheet tensioner 6 shown.
  • first baffle 1 In in The sheet running direction 18 seen first baffle 1 are individual nozzles symmetrical to the center of the conveying plane 21 arranged.
  • reference number 3 is a nozzle group referred to, from the air jets in a lateral direction exit oriented.
  • the air nozzles can be perpendicular to the Delivery level center 21 or in 15 °, 30 °, 45 ° orientation or any blowing angle orientation steps gradually be twisted to each other.
  • At 20 there is a group referred to by air vents that strictly laterally oriented Air jets generated.
  • At the front edge of the baffle 1 is one of the first deformation area 11 of the Bow tensioner 6 opposite first row of nozzles 16 educated. From this can with pure face printing and at Fine and reverse printing operation - so if the contact of the already printed underside with the stationary surfaces of the bow tensioner 6 is to be avoided - the air flow emerge that the air cushion over the Deformation areas 11 and 12 of the sheet tensioner 6 are washed in. Since it can also be turned by turning corners in straight printing Lubrication can occur by washing in an air cushion useful in this mode too.
  • the air cushion that passes through the first row of nozzles 16 is generated, extends up to the baffle 2, on the through the side blowing nozzles 19, which are there with blowing air of a lower pressure level side-tightening effect on the sheets to be conveyed 13 is exercised.
  • sheet tensioners 6 At the between the edges of the Sheet guide plates 1 and 2 are included sheet tensioners 6 the deformation areas 11 and 12 seen from above shown. These are each with two brackets 7 and 8 in the side walls 17 of the sheet delivery of the printing press stored.
  • the brackets can be fitted with spring catch bolts be, by simply pulling the bolt inwards Release of the bow tensioner 6 takes place.
  • the two sheet guide plates 1 and 2 are in a variety air nozzles 3 oriented in different directions. Both baffles 1 and 2 are each with a blower 26 and 29 respectively provided, thereby entering the cavities below this Baffles low pressure air of a pressure level, for example between 5 and 20 mbar is introduced. Are against the deformation areas 11, 12 of the sheet tensioner 6 with blowing or Suction air at a higher pressure level.
  • the in Seen the sheet running direction 18 first Deformation area 11 is with suction air with a negative pressure of about 80 mbar, for example, and is in its lower area is provided with a row of suction nozzles 23.
  • the second opposite the first deformation region 11 Deformation area 12 is with a blow nozzle row 22 provided and with blowing air of a pressure level between 100 and 250 mbar applied.
  • the first deformation area is 11 consequently with a vacuum source 28, the second Deformation area 12 connected to a blower.
  • the application of the nozzle row 22 or 23 in the pure Fine pressure operation with blowing or suction air is not mandatory required, but can be done if desired in order to lubricate critical grammages - should it be too Turning corners come - to be avoided.
  • Fig. 4 is the process of the Bow tightening shown at passage of the bow tensioner.
  • an air cushion 31 is placed under the straight area of the bend 13 over the baffles 1 and 2 generated.
  • the arch 13 is tightened by deformation of the sheet 13 by blowing air 25 from above, if this is located above the gusset of the gap 24.
  • the arch 13 hugs the contours of the first and second Deformation area 11, 12 of the sheet tensioner 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Advancing Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Discharge By Other Means (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

The equipment is for a press printing sheets on one or both sides. he sheet-stretching mechanism (6) has a top surface in the plane in which adjacent sheet-conveyors (1, 2) work, also holders (7, 8) for printing on one or both sides. Its surface is flushed by an air cushion generated by adjacent jet nozzles (3). The latter can be in the adjacent conveyor surfaces. The latter can be exposed to low-pressure air, and the stretching mechanism can incorporate distortion areas (11, 12) opposite each other.

Description

Die Erfindung betrifft eine Vorrichtung zur Einwirkung auf Bogen in einem Bogenausleger einer die Bogen wahlweise einseitig oder zweiseitig bedruckenden Druckmaschine, mit einem Bogenstraffer, welcher einen ersten Verformungsbereich und einen zweiten Verformungsbereich aufweist, nach dem Oberbegriff von Anspruch 1.The invention relates to a device for acting on sheets in one Sheet delivery one of the sheets optionally printing on one or two sides Printing machine, with a sheet tensioner, which has a first deformation area and has a second deformation area, according to the preamble of Claim 1.

In der DE 41 09 876 A1 ist eine derartige Vorrichtung beschrieben. Dieser Bogenglätter weist zwei mit Überdruck versorgbare Stützkörper und einen mit Unterdruck beaufschlagbaren Glätterspalt auf. Keiner der als Verformungsbereich wirksamen Stützkörper ist mit Saugluft beaufschlagbar. Zudem ist der Bogenglätter nicht mit seiner Oberfläche in eine angrenzender Bogenförderebene integriert und wird auch nicht von einem Luftpolster überspült.Such a device is described in DE 41 09 876 A1. This Sheet straightener has two supporting bodies that can be supplied with overpressure and one with Vacuum smoothing gap. None of that as a deformation area effective support body can be acted upon with suction air. In addition, the bow straightener not integrated with its surface in an adjacent sheet conveying plane and is also not washed over by an air cushion.

Die DE 44 27 897 C1 offenbart ferner eine Vorrichtung zur Einwirkung auf einen Bogen. Es ist ein Bogenglätter zur Entwellung der Bogen bei einseitigem Druck und eine Leitvorrichtung zur berührungsfreien Führung der Bogen bei beidseitigem Druck vorgesehen. Der Bogenglätter ist ortsfest am Maschinengestell in einer in Bezug auf die Führungsbahn der Leitvorrichtung zurückgesetzten Position angebracht und es ist ein Leitelement in Form einer Platte vorgesehen, die zur Abdeckung des Bogenglätters bei beidseitigem Druck in den Freiraum zwischen Bogenleitblech und Bogenglätter bewegbar ist.DE 44 27 897 C1 also discloses a device for acting on one Bow. It is a sheet straightener for removing curls when printing on one side and a guide device for contact-free guidance of the sheets with double-sided printing intended. The sheet straightener is stationary in relation to the machine frame the guideway of the guide device reset position attached and it a guide element is provided in the form of a plate which is used to cover the Sheet smoothers with double-sided pressure in the space between sheet guide and Bow straightener is movable.

Zum Verschwenken der Platte, die den Bogenglätter bei beidseitigem Druck abdeckt, ist eine Stellzylindereinheit erforderlich, der die Auswechselbarkeit des Bogenglätters - etwa zu Reinigungszwecken - behindert. Zudem ist nur bei beidseitigem Druck eine ebene Bogenförderfläche gegeben, bei einseitigem Druck bildet der Bogenglätter eine Vertiefung, eine Mulde in der Bogenförderebene, die für die Gleichmäßigkeit der Bogenförderung nicht von Vorteil ist.To swivel the plate that covers the trowel when printing on both sides, an actuating cylinder unit is required, which shows the interchangeability of the straightener - about for cleaning purposes - disabled. In addition, only when printing on both sides is one given a flat sheet conveying surface, with one-sided printing the sheet straightener forms a depression, a trough in the sheet conveying plane, which is responsible for the uniformity of the Bow promotion is not an advantage.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Einwirkung auf Bogen im Bogenausleger einer die Bogen wahlweise einseitig oder zweiseitig bedruckenden Druckmaschine mit einem zwei Verformungsbereiche umfassenden Bogenstraffer zu schaffen, bei der im Schöndruck und im Schön- und Widerdruckbetrieb ein störungsfreier Bogentransport gewährleistet ist und bei der ein Abschmieren der Bogen im Schön- und Widerdruckbetrieb noch sicherer als bei vorhandenen derartigen Vorrichtungen vermieden wird.The invention has for its object a device for action Sheets in the sheet delivery either one-sided or two-sided printing press with a two deformation areas To create bow tensioners, in the face printing and in the beauty and Fault-free operation a trouble-free sheet transport is guaranteed and at the one Lubricating the sheets in face and back printing operations is even more reliable than with existing such devices is avoided.

Erfindungsgemäß wird diese Aufgabe durch eine Vorrichtung mit den Merkmalen des Patentanspruches 1 gelöst.According to the invention, this object is achieved by a device with the features of claim 1 solved.

Die Vorrichtung zur Einwirkung auf Bogen im Bogenausleger einer die Bogen wahlweise einseitig oder zweiseitig bedruckenden Druckmaschine, mit einem Bogenstraffer, welcher einen ersten Verformungsbereich und einen zweiten Verformungsbereich aufweist, zeichnet sich erfindungsgemäß dadurch aus, daß der Bogenstraffer mit seiner Oberfläche in eine angrenzende Bogenförderebene integriert ist und bei Schöndruck und Schön- und Widerdruckbetrieb mit einem Luftpolster überspült wird und daß der erste Verformungsbereich mit Saugluft beaufschlagbar ist.The device for acting on sheets in the sheet delivery of the sheets either one-sided or two-sided printing press, with one Bow tensioner, which has a first deformation area and a second According to the invention is characterized in that that the sheet tensioner with its surface in an adjacent sheet conveying plane is integrated and with one-sided printing and perfecting Air cushion is washed over and that the first deformation area with suction air is acted upon.

Die Integration der Oberfläche des Bogenstraffers in die Bogenförderebene ermöglicht einen weitgehend störungsfreien Bogentransport im einseitigen wie im zweiseitigen Druckbetrieb. Bei Widerdruckbetrieb ist durch die Einspülung eines Luftpolsters eine abschmierfreie Bogenführung gewährleistet, ohne daß peripher gelagerte Abdeckelemente zunächst in die Förderebene hineingeschwenkt werden müßten.The integration of the surface of the sheet tensioner in the sheet conveying plane enables largely trouble-free sheet transport in one-sided as in two-sided printing. In reverse pressure operation is a by flushing Air cushion ensures a lubrication-free sheet guide without peripheral stored cover elements are first pivoted into the conveyor plane ought to.

In vorteilhafter Weiterbildung der Erfindung erfolgt die Einspülung der Luft zum Aufbau eines Luftpolsters von einer der angrenzenden Leitbleche der Bogenförderebene aus. Die angrenzenden Leitbleche der Bogenförderebene sind mit Druckluft von niedrigem Druckniveau beaufschlagt.In an advantageous development of the invention, the air is flushed in Build up an air cushion from one of the adjacent baffles Sheet conveying plane. The adjacent baffles of the sheet conveying level are pressurized with low pressure air.

Eine weitere vorteilhafte Ausgestaltungsform des Bogenstraffers umfaßt gewölbt ausgeführte Verformungsbereiche, die einander gegenüberliegend ausgeführt sind. Die Verformungsbereiche können mit einzelnen Luftdüsen versehen sein, die sich reihenförmig über die Breite des Bogenauslegers erstrecken. Einer der Verformungsbereiche des Bogenstraffers ist mit Saugluft beaufschlagt, während der gegenüberliegende zweite Verformungsbereich mit Druckluft beaufschlagbar ist. Das Druckniveau für Saug- bzw. Blasluft für die beiden erwähnten Verformungsbereiche am Bogenstraffer liegt dabei etwas höher als das Druckniveau in der Bogenförderebene.Another advantageous embodiment of the bow tensioner comprises arched executed deformation areas that are executed opposite to each other. The deformation areas can be provided with individual air nozzles that are extend in a row across the width of the sheet boom. One of Deformation areas of the sheet tensioner are subjected to suction air during the opposite second deformation area can be acted upon by compressed air. The Pressure level for suction or blowing air for the two deformation areas mentioned the sheet tensioner is slightly higher than the pressure level in the Sheet conveying plane.

Bei einer weiteren vorteilhaften Ausgestaltung des der Erfindung zugrundeliegenden Gedankens sind die Luftdüsen, die in Reihe nebeneinander liegend ausgeführt sind, im unteren Bereich des ersten Verformungsbereiches des Bogenstraffers vorgesehen, während die Reihe von Luftdüsen im zweiten Verformungsbereich etwas höher in diesem liegend ausgeführt ist. Bei Beaufschlagung der Verformungsbereiche mit Saug- bzw. Blasluft läßt sich dadurch eine gegenläufige Luftströmung aufbauen, so daß diese im Abschmierbereich sowohl im reinen Schöndruck als auch im Schön- und Widerdruckbetrieb einen Kontakt der bereits bedruckten Bogenseite mit den Oberflächen des Bogenstraffers verhindert.In a further advantageous embodiment of the basis of the invention The air nozzles, which are arranged in a row next to each other, are thought in the lower area of the first deformation area of the bow tensioner provided while the series of air nozzles in the second deformation area is slightly higher lying in this. When the Deformation areas with suction or blown air can be counter-rotating Build up air flow so that it is in the lubrication area both in the pure Fine print as well as in the perfecting mode a contact that already printed sheet side with the surfaces of the sheet tensioner prevented.

Zur leichteren Auswechselbarkeit kann der Bogenstraffer gemäß einer weiteren Ausgestaltungsform mit Schnappverschlüssen ausgerüstet sein , mit denen er mit wenigen Handgriffen in den Seitenwänden arretierbar bzw. aus diesen entnehmbar ist. Durch eine an vier Haltepunkten erfolgte Lagerung des Bogenstraffers mit Schnappverschlüssen ist ein problemloses Abschwenken oder Ausbauen des Bogenstraffers mit wenigen Handgriffen garantiert.According to another, the sheet tensioner can be replaced more easily Design with snap locks, with which he can be equipped can be locked in or removed from the side walls in a few simple steps is. By mounting the bow tensioner at four stops Snap locks is a simple pivoting or removing the Bow tensioners guaranteed in just a few simple steps.

Zur Erzeugung der gegenläufigen Luftströmung im Abschmierbereich des Bogenstraffers wird bei einer weiteren Ausgestaltungsform der in Bogenlaufrichtung gesehen erste Verformungsbereich des Bogenstraffers mit Saugluft beaufschlagt, während der in Bogenlaufrichtung gesehen zweite Verformungsbereich des Bogenstraffers mit Blasluft beaufschlagt wird.To generate the opposite air flow in the lubrication area of the In a further embodiment, the sheet tensioner is in the direction of sheet travel viewed first deformation area of the sheet tensioner with suction air, during the second deformation region of the Blown air is applied to the sheet tensioner.

Anhand einer Zeichnung sei die Erfindung nachstehend detaillierter erläutert.The invention will be explained in more detail below with reference to a drawing.

Es zeigen:

Fig. 1
eine Seitenansicht des Bogenstraffers, integriert in die Bogenförderebene,
Fig. 2
eine Draufsicht auf die Verformungsbereiche des Bogenstraffers zwischen den die Bogenförderebene bildenden Leitblechen,
Fig. 3
eine Luftströmungsverteilung im Bogenstraffer mit Ausbildung einer gegenläufigen Luftströmung im Abschmierbereich und
Fig. 4
die schematisch skizzierte Verformung eines den Bogenstraffer passierenden Bogens.
Show it:
Fig. 1
a side view of the sheet tensioner, integrated into the sheet conveying plane,
Fig. 2
2 shows a plan view of the deformation areas of the sheet tensioner between the guide plates forming the sheet conveying plane,
Fig. 3
an air flow distribution in the sheet tensioner with formation of an opposing air flow in the lubrication area and
Fig. 4
the schematically sketched deformation of a bow passing the bow tensioner.

Die Darstellung gemäß Fig. 1 zeigt einen Bogenstraffer 6, der in der Bogenförderebene, den Leitblechen 1 und 2 aufgenommen ist. Die Teile der Bogenförderebene 1 bzw. 2 sind mit einer Vielzahl Luftstrahlen in verschiedene Richtungen leitende Luftdüsen 3 versehen und aus einzelnen Profilen 14 gebildet, die Hohlräume 4 bzw. 5 begrenzen. Zwischen einer Kante 15 der Bogenförderebene 1 und der gegenüberliegenden Kante der Bogenförderebene 2 ist ein Bogenstraffer 6 gelagert. Dieser ist mittels mit 7 und 8 bezeichneten Rastbolzen oder Halterungen in hier nicht dargestellten Seitenwänden des Bogenauslegers der Druckmaschine gelagert.1 shows a sheet tensioner 6, the in the sheet conveying plane, the guide plates 1 and 2 are added is. The parts of the sheet conveying level 1 or 2 are with a Large number of air jets directing in different directions Air nozzles 3 provided and formed from individual profiles 14, limit the cavities 4 and 5 respectively. Between an edge 15 of the Sheet conveying plane 1 and the opposite edge of the Sheet conveying plane 2, a sheet tensioner 6 is mounted. This is by means of 7 and 8 designated locking bolts or Mounts in the side walls of the Sheet delivery of the printing press.

Der Bogenstraffer 6 umfaßt einen in Bogenlaufrichtung 18 gesehen ersten Verformungsbereich 11 sowie einen zweiten Verformungsbereich 12, die beide eine gewölbte Oberfläche aufweisen. Der Bogenstraffer 6 wird von zwei Begrenzungswänden 10 seitlich begrenzt. Mit Bezugszeichen 9 ist ein Anschluß für die Luftversorgung des Bogenstraffers bezeichnet. Zwischen den nach unten auslaufenden Oberflächen der Verformungsbereiche 11 und 12 ist ein Spalt verblieben, durch den die Verformungsbereiche 11 und 12 voneinander getrennt sind.The sheet tensioner 6 comprises one in the sheet running direction 18 seen first deformation area 11 and a second Deformation area 12, both of which have a curved surface exhibit. The bow tensioner 6 is of two Boundary walls 10 laterally limited. With reference number 9 is a connection for the air supply to the sheet tensioner designated. Between the surfaces that run down the deformation areas 11 and 12 have remained a gap, through which the deformation areas 11 and 12 from each other are separated.

In Fig. 2 ist eine Draufsicht auf den zwischen den Leitblechen 1 und 2 aufgenommenen Bogenstraffer 6 gezeigt. 2 is a plan view of the between the Baffles 1 and 2 shown sheet tensioner 6 shown.

Die ebenfalls mit hier lediglich schematisch dargestellten Lagerungen in den Seitenwänden 17 arretierten Leitbleche 1 und 2 sind mit einer Vielzahl von Luftdüsen 3 versehen. Im in Bogenlaufrichtung 18 gesehen ersten Leitblech 1 sind die einzelnen Düsen symmetrisch zur Förderebenenmitte 21 angeordnet. Mit Bezugszeichen 3 ist eine Düsengruppe bezeichnet, aus der Luftstrahlen in seitlicher Richtung orientiert austreten. Die Luftdüsen können senkrecht zur Förderebenenmitte 21 oder in 15°, 30°, 45°-Orientierung oder beliebigen Blaswinkel-Orientierungsschritten graduell verdreht zueinander angeordnet sein. Mit 20 ist eine Gruppe von Luftdüsen bezeichnet, die streng seitlich orientierte Luftstrahlen erzeugt. An der vorderen Kante des Leitbleches 1 ist eine dem ersten Verformungsbereich 11 des Bogenstraffers 6 gegenüberliegende erste Düsenreihe 16 ausgebildet. Aus dieser kann bei reinem Schöndruck und bei Schön- und Widerdruckbetrieb - wenn also der Kontakt der bereits bedruckten Unterseite mit den stationären Oberflächen des Bogenstraffers 6 vermieden werden soll - die Luftströmung austreten, die das Luftpolster über den Verformungsbereichen 11 und 12 des Bogenstraffers 6 einspült. Da es durch Eckenumschlagen bei Schöndruck auch zum Abschmieren kommen kann, ist das Einspülen eines Luftpolsters auch in dieser Betriebsart von Nutzen.The also shown here only schematically Bearings in the side walls 17 locked guide plates 1 and 2 are provided with a plurality of air nozzles 3. In in The sheet running direction 18 seen first baffle 1 are individual nozzles symmetrical to the center of the conveying plane 21 arranged. With reference number 3 is a nozzle group referred to, from the air jets in a lateral direction exit oriented. The air nozzles can be perpendicular to the Delivery level center 21 or in 15 °, 30 °, 45 ° orientation or any blowing angle orientation steps gradually be twisted to each other. At 20 there is a group referred to by air vents that strictly laterally oriented Air jets generated. At the front edge of the baffle 1 is one of the first deformation area 11 of the Bow tensioner 6 opposite first row of nozzles 16 educated. From this can with pure face printing and at Fine and reverse printing operation - so if the contact of the already printed underside with the stationary surfaces of the bow tensioner 6 is to be avoided - the air flow emerge that the air cushion over the Deformation areas 11 and 12 of the sheet tensioner 6 are washed in. Since it can also be turned by turning corners in straight printing Lubrication can occur by washing in an air cushion useful in this mode too.

Das Luftpolster, welches durch die erste Düsenreihe 16 erzeugt wird, reicht bis an das Leitblech 2 heran, auf dem durch die seitlich blasenden Düsen 19, die dort mit Blasluft eines niedrigeren Druckniveaus beaufschlagt sind, ein seitlich straffender Effekt auf die zu fördernden Bogen 13 ausgeübt wird. An dem zwischen den Kanten der Bogenleitbleche 1 und 2 aufgenommenen Bogenstraffer 6 sind die Verformungsbereiche 11 und 12 von oben gesehen dargestellt. Diese sind mit jeweils zwei Halterungen 7 bzw. 8 in den Seitenwänden 17 des Bogenauslegers der Druckmaschine gelagert. Die Halterungen können mit Federrastbolzen versehen sein, wobei durch einfaches Ziehen der Bolzen nach innen eine Freigabe des Bogenstraffers 6 erfolgt. Andererseits könnte der Bogenstraffer 6 auch durch die Halterungen 7 bzw. 8 in seiner Lage gehalten werden und durch Drücken von der Bedienseite auf das gegenüberliegende Paar der Halterungen 7 und 8 an der Bedienseite freigegeben und dann anschließend einfach ausgehangen werden; auch ein Abschwenken des Bogenstraffers 6 nach Ziehen von lediglich zwei Halterungen 7 bzw. 8 ist möglich.The air cushion that passes through the first row of nozzles 16 is generated, extends up to the baffle 2, on the through the side blowing nozzles 19, which are there with blowing air of a lower pressure level side-tightening effect on the sheets to be conveyed 13 is exercised. At the between the edges of the Sheet guide plates 1 and 2 are included sheet tensioners 6 the deformation areas 11 and 12 seen from above shown. These are each with two brackets 7 and 8 in the side walls 17 of the sheet delivery of the printing press stored. The brackets can be fitted with spring catch bolts be, by simply pulling the bolt inwards Release of the bow tensioner 6 takes place. On the other hand, could the sheet tensioner 6 also through the brackets 7 and 8 in be held in its position and by pressing the Operator side on the opposite pair of brackets 7 and 8 released on the operating side and then afterwards just be hung up; also a pivoting of the Sheet tensioner 6 after pulling only two brackets 7 or 8 is possible.

In der Darstellung gemäß Fig. 3 sind die Strömungsverhältnisse im Bogenstraffer 6 und in den angrenzenden Bogenleitblechen 1 und 2 gezeigt.3 are the Flow conditions in the bow tensioner 6 and in the adjacent sheet guide plates 1 and 2 shown.

Die beiden Bogenleitbleche 1 und 2 sind mit einer Vielzahl in unterschiedliche Richtungen orientierte Luftdüsen 3 versehen. Beide Leitbleche 1 und 2 sind mit je einem Gebläse 26 bzw. 29 versehen, wodurch in die Hohlräume unterhalb dieser Leitbleche Niederdruckluft eines Druckniveaus beispielsweise zwischen 5 und 20 mbar eingebracht wird. Demgegenüber sind die Verformungsbereiche 11, 12 des Bogenstraffers 6 mit Blas- bzw. Saugluft eines höheren Druckniveaus beaufschlagt. Der in Bogenlaufrichtung 18 gesehen liegende erste Verformungsbereich 11 wird mit Saugluft mit einem Unterdruck von beispielsweise etwa 80 mbar beaufschlagt und ist in seinem unteren Bereich mit einer Saugdüsenreihe 23 versehen. Der dem ersten Verformungsbereich 11 gegenüberliegende zweite Verformungsbereich 12 ist mit einer Blasdüsenreihe 22 versehen und mit Blasluft eines Druckniveaus zwischen 100 und 250 mbar beaufschlagt. Der erste Verformungsbereich 11 ist demzufolge mit einer Unterdruckquelle 28, der zweite Verformungsbereich 12 mit einem Gebläse verbunden.The two sheet guide plates 1 and 2 are in a variety air nozzles 3 oriented in different directions. Both baffles 1 and 2 are each with a blower 26 and 29 respectively provided, thereby entering the cavities below this Baffles low pressure air of a pressure level, for example between 5 and 20 mbar is introduced. Are against the deformation areas 11, 12 of the sheet tensioner 6 with blowing or Suction air at a higher pressure level. The in Seen the sheet running direction 18 first Deformation area 11 is with suction air with a negative pressure of about 80 mbar, for example, and is in its lower area is provided with a row of suction nozzles 23. The second opposite the first deformation region 11 Deformation area 12 is with a blow nozzle row 22 provided and with blowing air of a pressure level between 100 and 250 mbar applied. The first deformation area is 11 consequently with a vacuum source 28, the second Deformation area 12 connected to a blower.

Durch Einspülen eines Luftpolsters von der in Fig. 2 gezeigten unteren ersten Düsenreihe 16 des Leitbleches 2 aus, wird dieser Zwickel zwischen den beiden Verformungsbereichen 11 und 12 überbrückt, so daß bei Schön- und Widerdruckbetrieb die bereits bedruckte Unterseite des Bogens 13 nicht mit den Oberflächen des Bogenstraffers 6 in Berührung kommt. Bei reinem Schöndruck, also lediglich einseitigem Bedrucken des Bogens 13 kann durch die Bogenleitbleche 1 und 2 ein den Bogen 13 tragendes Luftpolster erzeugt werden, bevor dieser den Bogenstraffer 6 passiert. Dort wird der Bogen dann durch die Einwirkung von Blasluft 25 auf seine Oberseite oberhalb des Spaltes 24 geglättet, wobei eine Berührung des Bogens 13 mit den Oberflächen der Verformungsbereiche 11 und 12 weniger kritisch ist, aber es dort zu Eckenumschlagen des Bogens 13 und damit zum Abschmieren kommen kann.By flushing in an air cushion from that in FIG. 2 shown lower first row of nozzles 16 of the guide plate 2, this gusset becomes between the two Deformation areas bridged 11 and 12, so that at Schön- and Reverse printing operation the already printed underside of the Sheet 13 does not match the surfaces of the sheet tensioner 6 in Touch comes. With straight printing, so only one-sided printing of the sheet 13 can by Sheet baffles 1 and 2 bearing the sheet 13 Air cushions are generated before this the bow tensioner 6th happens. There the bow is then affected by Blow air 25 on its upper side above the gap 24 smoothed, with a contact of the sheet 13 with the Surfaces of the deformation areas 11 and 12 less is critical, but there to turn the corner of sheet 13 there and thus can get lubricated.

Im Gegensatz dazu muß bei Widerdruckbetrieb eine Berührung der frisch bedruckten Unterseite des Bogens 13 mit den Oberflächen der Verformungsbereiche 11 und 12 bei der Passage des Bogenstraffers 6 ausgeschlossen werden, ohne dessen Wirksamkeit einzuschränken. Dazu wird durch die erste Düsenreihe 16 des Leitbleches 1 ein Luftpolster unter dem zu fördernden Bogen 13 erzeugt, welches sich über beide Verformungsbereiche 11 und 12 erstreckt. Zusätzlich wird durch die Blasluftbeaufschlagung der Düsenreihe 22 des zweiten Verformungsbereiches 12 und die Saugluftbeaufschlagung der Saugdüsenreihe 23 im ersten Verformungsbereich 11 eine gegenläufige Luftströmung im Spalt 24 erreicht, die das Eintauchen des Bogens 13 im Widerdruckbetrieb in den Spalt 24 und damit dessen Berührung verhindert. Damit tritt auch keine Berührung der bedruckten Unterseite des sich bewegenden Bogens 13 mit einer stationären Oberfläche des Bogenstraffers 6 auf, die Gefahr des Abschmierens der Unterseite des bedruckten Bogens 13 ist gebannt. In contrast, in the case of back pressure operation, a touch must be made the freshly printed underside of sheet 13 with the Surfaces of the deformation areas 11 and 12 at the passage of the bow tensioner 6 are excluded without it To limit effectiveness. This is done by the first Row of nozzles 16 of the baffle 1 an air cushion under the promoting arc 13 generated, which over both Deformation areas 11 and 12 extends. In addition, by blowing air on the nozzle row 22 of the second deformation area 12 and the Suction air supply to the suction nozzle row 23 in the first Deformation area 11 an opposing air flow in the Gap 24 reached that the immersion of the sheet 13 in Back pressure operation in the gap 24 and thus its contact prevented. So there is no contact with the printed Underside of the moving sheet 13 with a stationary surface of the sheet tensioner 6, the danger of smearing the underside of the printed sheet 13 banned.

Die Beaufschlagung der Düsenreihe 22 bzw. 23 im reinen Schöndruckbetrieb mit Blas- bzw. Saugluft ist nicht zwingend erforderlich, kann aber, falls gewünscht, vorgenommen werden, um bei kritischen Grammaturen, ein Abschmieren - sollte es zu Eckenumschlagen kommen - zu vermeiden.The application of the nozzle row 22 or 23 in the pure Fine pressure operation with blowing or suction air is not mandatory required, but can be done if desired in order to lubricate critical grammages - should it be too Turning corners come - to be avoided.

In Fig. 4 ist in schematischer Weise der Vorgang des Bogenstraffens bei Passage des Bogenstraffers gezeigt.In Fig. 4 is the process of the Bow tightening shown at passage of the bow tensioner.

Im hier gezeigten Stadium wird ein Luftpolster 31 unter den geraden Bereich des Bogens 13 über den Leitblechen 1 und 2 erzeugt. Das Straffen des Bogens 13 erfolgt durch Verformung des Bogens 13 durch Blasluft 25 von oben, wenn dieser sich oberhalb des Zwickels des Spaltes 24 befindet. Der Bogen 13 schmiegt sich an die Kontur des ersten und zweiten Verformungsbereiches 11, 12 des Bogenstraffers 6 an. Dabei wird durch Beaufschlagung der Düsenreihen 22 und 23 mit Blas- bzw. Saugluft das Eintauchen des Bogens 13 durch Erzeugung einer gegenläufigen Luftströmung in den Spalt 24 verhindert. In the stage shown here, an air cushion 31 is placed under the straight area of the bend 13 over the baffles 1 and 2 generated. The arch 13 is tightened by deformation of the sheet 13 by blowing air 25 from above, if this is located above the gusset of the gap 24. The arch 13 hugs the contours of the first and second Deformation area 11, 12 of the sheet tensioner 6. Here by blowing the nozzle rows 22 and 23 with Suction air immersing the sheet 13 by generation an opposing air flow in the gap 24 prevented.

BezugszeichenlisteReference list

11
LeitblechBaffle
22nd
LeitblechBaffle
33rd
DüsenNozzles
44th
Hohlraumcavity
55
Hohlraumcavity
66
BogenstrafferBow tensioner
77
Halterungbracket
88th
Halterungbracket
99
LuftversorgungAir supply
1010th
Seitliche BegrenzungswandLateral boundary wall
1111
erster Verformungsbereichfirst deformation area
1212th
zweiter Verformungsbereichsecond deformation area
1313
Bogenbow
1414
Profilprofile
1515
KanteEdge
1616
erste Düsenreihefirst row of nozzles
1717th
SeitenwandSide wall
1818th
BogenlaufrichtungDirection of sheet travel
1919th
seitlich blasende Düsenside blowing nozzles
2020th
bogenspannende Luftdüsenarcing air nozzles
2121
FörderebenemitteFunding level center
2222
BlasdüsenreiheBlow nozzle row
2323
SaudüsenreiheLine of nozzles
2424th
Spaltgap
2525th
Blasluft von obenBlown air from above
2626
Gebläsefan
2727
Gebläsefan
2828
UnterdruckquelleVacuum source
2929
Gebläsefan
3030th
gegenläufiger Luftstromopposite air flow
3131
LuftpolsterAir cushion

Claims (12)

  1. Device for acting upon sheets in a sheet delivery of a printing machine printing the sheets selectively on one side or on both sides, with a sheet tautener (6) which has a first deformation region (11) and a second deformation region (12), characterized in that the sheet tautener (6) is integrated with its surface into an adjacent sheet-conveying plane (1, 2) and is swept with an air cushion (31) in the recto printing mode and the recto/verso printing mode, and in that the first deformation region (11) can be subjected to suction air.
  2. Device for acting upon sheets according to Claim 1, characterized in that the adjacent sheet-conveying planes (1, 2) are provided with air nozzles (3, 16, 19, 20).
  3. Device for acting upon sheets according to Claim 2, characterized in that the adjacent sheet-conveying planes (1, 2) can be subjected to low-pressure air.
  4. Device for acting upon sheets according to Claim 1, characterized in that the sheet tautener (6) comprises retention means (7, 8).
  5. Device for acting upon sheets according to Claim 1, characterized in that the deformation regions (11, 12) are located opposite one another.
  6. Device for acting upon sheets according to Claim 1, characterized in that the deformation regions (11, 12) are equipped with air-nozzles (22, 23).
  7. Device for acting upon sheets according to Claim 4, characterized in that the second deformation region (12) of the sheet tautener (6) can be subjected to compressed air.
  8. Device for acting upon sheets according to Claim 7, characterized in that the pressure level in the sheet-conveying planes (1, 2) is lower than the pressure levels for suction air in the first deformation region (11) and for blowing air in the second deformation region (12), respectively.
  9. Device for acting upon sheets according to Claim 6, characterized in that the air nozzles (23) are provided in the lower region of the first deformation region (11) of the sheet tautener (6).
  10. Device for acting upon sheets according to Claim 4, characterized in that the retention means are spring-loaded snap fastenings (7, 8), by means of which the sheet tautener (6) can be detained in side walls (17) of the printing machine.
  11. Device for acting upon sheets according to Claim 1, characterized in that, in the recto printing mode and in the recto/verso printing mode, an oppositely directed air flow is generated in the sheet tautener (6), between the deformation regions (11, 12), by the air-nozzle rows (22, 23) being subjected to suction air and blowing air, respectively.
  12. Device for acting upon sheets according to Claim 7, characterized in that the first deformation region (11), as seen in the sheet-conveying direction (18), is subjected to suction air and the second deformation region (11), as seen in the sheet-conveying direction (18), can be subjected to blowing air.
EP96117816A 1995-12-20 1996-11-07 Device for acting on sheets in a sheet delivery apparatus Expired - Lifetime EP0780332B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547546A DE19547546A1 (en) 1995-12-20 1995-12-20 Device for acting on sheets in a sheet delivery
DE19547546 1995-12-20

Publications (3)

Publication Number Publication Date
EP0780332A2 EP0780332A2 (en) 1997-06-25
EP0780332A3 EP0780332A3 (en) 1998-03-25
EP0780332B1 true EP0780332B1 (en) 1999-09-15

Family

ID=7780636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117816A Expired - Lifetime EP0780332B1 (en) 1995-12-20 1996-11-07 Device for acting on sheets in a sheet delivery apparatus

Country Status (5)

Country Link
US (1) US5832826A (en)
EP (1) EP0780332B1 (en)
JP (1) JPH09174816A (en)
AT (1) ATE184570T1 (en)
DE (2) DE19547546A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU703647B1 (en) * 1998-06-16 1999-03-25 Qi Press Controls Holding Bv Device to compensate for print misregister due to paper distortion on web offset printing presses
DE29817879U1 (en) 1998-10-07 1998-12-17 MAN Roland Druckmaschinen AG, 63075 Offenbach Sheet guiding device for sheets printed on one or both sides in a printing machine
US6937330B2 (en) 1999-04-23 2005-08-30 Ppd Biomarker Discovery Sciences, Llc Disposable optical cuvette cartridge with low fluorescence material
US6687395B1 (en) 1999-07-21 2004-02-03 Surromed, Inc. System for microvolume laser scanning cytometry
DE10137212A1 (en) * 2000-08-31 2002-05-23 Heidelberger Druckmasch Ag Smoothing device for printed sheets comprises curved guide surfaces, over which sheets flow, which have air outlets connected to throttle channels fed with compressed air
US6787761B2 (en) 2000-11-27 2004-09-07 Surromed, Inc. Median filter for liquid chromatography-mass spectrometry data
US6890409B2 (en) * 2001-08-24 2005-05-10 Applera Corporation Bubble-free and pressure-generating electrodes for electrophoretic and electroosmotic devices
US6873915B2 (en) 2001-08-24 2005-03-29 Surromed, Inc. Peak selection in multidimensional data
US20030078739A1 (en) * 2001-10-05 2003-04-24 Surromed, Inc. Feature list extraction from data sets such as spectra
US7101032B2 (en) * 2001-10-17 2006-09-05 Seiko Epson Corporation Fixed material transportation apparatus and liquid fixing apparatus
ATE268266T1 (en) 2001-10-17 2004-06-15 Seiko Epson Corp FIXED MATERIAL TRANSPORT DEVICE AND LIQUID FIXATION DEVICE COMPRISING SUCH A TRANSPORT DEVICE
US6989100B2 (en) 2002-05-09 2006-01-24 Ppd Biomarker Discovery Sciences, Llc Methods for time-alignment of liquid chromatography-mass spectrometry data
US7248360B2 (en) * 2004-04-02 2007-07-24 Ppd Biomarker Discovery Sciences, Llc Polychronic laser scanning system and method of use
US7419462B1 (en) * 2005-06-13 2008-09-02 Dixie Consumer Products Llc Pressware die set with pneumatic blank feed
WO2009113066A2 (en) 2008-03-11 2009-09-17 Coreflow Ltd. Method and system for locally controlling support of a flat object
US9889995B1 (en) * 2017-03-15 2018-02-13 Core Flow Ltd. Noncontact support platform with blockage detection

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076492A (en) * 1959-10-30 1963-02-05 Standard Packaging Corp Apparatus for removing the curl from sheets
NL268256A (en) * 1959-12-12
US3550556A (en) * 1968-01-11 1970-12-29 Xerox Corp Development apparatus
JPS4837611B1 (en) * 1969-07-03 1973-11-12
US3719169A (en) * 1971-05-07 1973-03-06 Xerox Corp Plural electrode development apparatus
GB1458766A (en) * 1973-02-15 1976-12-15 Xerox Corp Xerographic developing apparatus
IT998400B (en) * 1973-05-10 1976-01-20 Carstedt Howard EQUIPMENT FOR CONTINUOUS BENDING OF METALS IN SHEETS IN PARTICULAR FOR PRINTING MACHINES
US3975057A (en) * 1975-02-06 1976-08-17 The Motch & Merryweather Machinery Company Stopping device for air conveyor
US4002047A (en) * 1975-07-07 1977-01-11 Baldwin-Gegenheimer Corporation Sheet material decurling apparatus
US4013284A (en) * 1975-10-14 1977-03-22 Eastern Graphic Products, Inc. Decurler device
DE2811963C2 (en) * 1978-03-18 1985-01-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Sheet delivery device on printing machines
CA1138723A (en) * 1978-07-28 1983-01-04 Tsutomu Toyono Developing method for developer transfer under electrical bias and apparatus therefor
DE3044649C2 (en) * 1980-11-27 1982-11-18 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for spreading sheets on printing cylinders of printing machines
JPS57195054A (en) * 1981-05-21 1982-11-30 Sakurai Seisakusho:Kk Curl correcting device for printing sheet, in offset press
DE3345201A1 (en) * 1983-12-14 1986-04-24 Werner J. 8901 Diedorf Kotterer Device for flattening sheets
US4792860A (en) * 1987-02-27 1988-12-20 Kuehrle Manfred R Thermodynamic printing method and means
DD266785A1 (en) * 1987-10-19 1989-04-12 Polygraph Leipzig DEVICE FOR GLAETTING ARC IN BOWERS
US4909890A (en) * 1988-05-06 1990-03-20 Bonnyman Arthur W Apparatus for protective film lamination
DE4106904A1 (en) * 1991-03-05 1992-09-10 Koenig & Bauer Ag NOZZLE ARRANGEMENT FOR THE ARC GUIDE IN ARC ROTATION PRINTING MACHINES
DE4109876C2 (en) * 1991-03-26 1996-03-14 Kba Planeta Ag Sheet straighteners in printing machine displays
DE4447963B4 (en) * 1994-08-03 2005-12-29 Heidelberger Druckmaschinen Ag Device for non-contact guiding sheet material
DE4427897C1 (en) * 1994-08-06 1995-09-28 Roland Man Druckmasch Paper sheet smoother in printer feeder

Also Published As

Publication number Publication date
ATE184570T1 (en) 1999-10-15
EP0780332A3 (en) 1998-03-25
US5832826A (en) 1998-11-10
JPH09174816A (en) 1997-07-08
DE19547546A1 (en) 1997-07-03
DE59603062D1 (en) 1999-10-21
EP0780332A2 (en) 1997-06-25

Similar Documents

Publication Publication Date Title
EP0780332B1 (en) Device for acting on sheets in a sheet delivery apparatus
EP0670215A1 (en) Device for drying printed sheets or webs in printing machines
DE19631598A1 (en) Pneumatic sheet guiding device in a printing press
DE19527441C2 (en) Method and device for pneumatic sheet braking in the delivery of a sheet-fed rotary printing machine
DE4424964C2 (en) Sheet guiding device for turning sheets
DE2137115A1 (en) BOW CONVEYOR
DE10060557B4 (en) Sheet guiding device in a rotary printing machine
DE19732235A1 (en) Printing machine with a device for cleaning the printing medium
DE29817317U1 (en) Sheet guiding device with a guiding surface in a printing press
DE10112759A1 (en) Sheet transfer between color printing stations has a perforated guide surface to form an air cushion for a clean sheet movement without flutter
EP1010525B1 (en) Sheet guiding device for a printing machine
DE102018210654A1 (en) Delivery for a sheet-processing machine and method for operating a delivery
DE2457069C2 (en) Device for registering sheets in sheet-fed rotary printing machines
DD285072A5 (en) blower
DE4014780A1 (en) Guide for sheets of paper - consists of pneumatic pieces in guide pieces, with suction hole and nozzles
EP1834912B1 (en) Sheet material processing machine with a guide for the suspended transport thereof
DE10323468A1 (en) Sheet processing machine with a pneumatic sheet guiding device
DE3737674C2 (en)
EP1995064B1 (en) Sheet guiding device in printing machines for supporting the transport of the sheets
WO1998022287A1 (en) Method and device for cleaning conveyor systems
DE102018210651A1 (en) Delivery for a sheet-processing machine and method for operating a delivery
DE102017204516A1 (en) Display of a sheet-processing machine with a sheet brake having brake stations and method for depositing sheets
EP0922575B1 (en) Sheet guiding device in a printing machine
EP1124689A1 (en) Sheet feeding device in a printing machine
DE4141261A1 (en) Pneumatic support for paper feed in process printer - has pairs of air jets angled to support paper and maintain suction hold

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961107

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE FR GB IT LI NL

17Q First examination report despatched

Effective date: 19980611

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 184570

Country of ref document: AT

Date of ref document: 19991015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59603062

Country of ref document: DE

Date of ref document: 19991021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991107

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19991115

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20021021

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021119

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20021125

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20021126

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20021128

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040602

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20031107

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040730

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051107