EP0297220A2 - Guiding device for the sides of a sheet - Google Patents

Guiding device for the sides of a sheet Download PDF

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Publication number
EP0297220A2
EP0297220A2 EP88105257A EP88105257A EP0297220A2 EP 0297220 A2 EP0297220 A2 EP 0297220A2 EP 88105257 A EP88105257 A EP 88105257A EP 88105257 A EP88105257 A EP 88105257A EP 0297220 A2 EP0297220 A2 EP 0297220A2
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EP
European Patent Office
Prior art keywords
sheet
hold
smoothing
pneumatic
down device
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.)
Granted
Application number
EP88105257A
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German (de)
French (fr)
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EP0297220A3 (en
EP0297220B1 (en
Inventor
Claus Dipl.-Ing. Simeth
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT88105257T priority Critical patent/ATE84493T1/en
Publication of EP0297220A2 publication Critical patent/EP0297220A2/en
Publication of EP0297220A3 publication Critical patent/EP0297220A3/en
Application granted granted Critical
Publication of EP0297220B1 publication Critical patent/EP0297220B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/105—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/36—Article guides or smoothers, e.g. movable in operation

Definitions

  • the invention relates to a sheet smoothing device for the side edge of a sheet with a hold-down device which is arranged in the vicinity of the fixed side mark of a side pulling device above the contact plate in the sheet system of a sheet-fed rotary printing press.
  • the alignment of the sheets to be printed is known to be necessary in the circumferential and lateral directions in order to ensure a precise register during the second pass or during further processing.
  • the registration requirements are extremely high for sheetfed presses.
  • the sheet is constantly pushed to the front marks by the pushing of tapes or the pushing of the following sheets via frictional engagement, i.e. driven to equal stops in the bow system. So that the sheets cannot bulge on the side edge during the lateral alignment, it is already known from practice to arrange a hold-down device or the like which is adjustable in height in order to prevent paper bulging on the stationary side mark. This must be quickly set to a sheet thickness so that a double sheet cannot be inserted. However, this rapid adjustment to the sheet thickness hinders the sheet from entering under the hold-down device, especially if the machine speed is to be increased. Here, the optimal production can be impaired with regard to the page register.
  • an up and down controllable sheet smoothing device for the edge of a sheet on the sheet system of a sheet-fed rotary printing press is known.
  • this sheet smoothing device is designed for smoothing the gripper edge, ie the front edge of the sheet, but not for smoothing the side edge in connection with the side pulling process.
  • the object of the invention is to provide a sheet smoothing device for the side edge of a sheet on a stationary side mark of a side pulling device of a sheet-fed rotary printing press, in which both the unimpeded entry of the sheet under the hold-down device and gentle smoothing of the side edge is ensured.
  • sheet smoothing device which can be controlled according to the invention can be used in conventional sheet feeders both in connection with mechanical side pulling devices and in connection with pneumatic side pulling devices, wherein the control of the movement of the sheet smoothing device can be implemented either separately or derived from the control of the pulling movement in a manner which is obvious to the person skilled in the art. With separate control, however, the correct assignment to the side pull process must be maintained.
  • a controllable sheet smoothing device 18 in conjunction with a pneumatic side pulling device, has the advantage of a longer pulling time and thus a higher machine speed with a low impact impulse at the side mark 20, because there is no need to wait until the end of the sheet lying above has left the side mark, such as that is required with a mechanical side pulling device.
  • an arc smoothing device 18 with a controllable hold-down device 21 is fastened to the stationary side mark 20 of a pneumatic side pulling device by means of an intermediate washer 24 and a screw not provided with a reference number.
  • the pneumatic side pulling device interacting with the sheet smoothing device consists of a housing 1 and a drive shaft 2, which carries a curve 3 and two valve disks 4, 5.
  • the drive shaft 2 is mounted in the housing 1.
  • the valve disks 4 and 5 are located in a valve housing 15 which is firmly connected to the housing 1 and which is penetrated by various bores.
  • a slide 7 is slidably arranged on a tube 6 and runs on the curve 3 with a roller 8.
  • the carriage 7 is pressed against the curve 3 by a spring 9 and follows its course.
  • the carriage 7 is provided with a pipe socket 10 and is located above an opening 11 which is provided in the pipe 6.
  • the slide 7 is provided with a guide groove 12 which runs transversely to the slide movement and in which a suction cup 13 is slidably mounted.
  • valve block in the housing 1 creates 2 air chambers 16, 17, one for blowing air 16 and one for suction air 17. In order to be able to introduce air into these air chambers 16, 17, the bores in the valve housing 15 are determined.
  • the pipe 6 is connected to a suction pump, so that the path of the air from the suction device 13 is as follows: the air flows via the suction device 13 through the pipe socket 10 and the opening 11 into the right end of the suction pipe 6. From there the air through a hole in the suction chamber 17 of the valve housing 15. Controlled by the valve disk 4, the air is then guided through holes in the left end of the tube 6. The right and left ends of the tube 6 are separated by a stopper.
  • the sheet to be aligned can be held in place by the suction device 13.
  • the bow is conveyed by the suction device 13 against the side mark 20 by the spring 9 and the curve 3.
  • the valve disc 4 is designed so that suction air is always applied to the suction device 13 during the lateral alignment.
  • the free movement of the suction device 13 in the guide groove 12 in the direction of sheet travel ensures that incorrect contact of the sheet with the front sheet stops is avoided.
  • blown air is supplied to the suction device 13 when the pre-gripper has gripped the sheet. This passes through the blown air chamber 16, the valve disk 5 and bores in the suction device 13.
  • the controllable hold-down device 21 of the sheet smoothing device 18 is arranged such that it can be moved up and down perpendicularly to the direction of the sheet travel.
  • the movable hold-down device 21 is raised on its side edge after the alignment of the sheet and lowered again to smooth the side edge of the next sheet to be aligned on its side edge.
  • the movable hold-down 21 can be pressed away from the contact plate by means of springs 25 which are supported in a stationary manner.
  • the movable hold-down device 21 is lowered again by a pneumatic control device against the pressure of the springs 25.
  • the pneumatic control device consists in addition to the functional parts for controlling the suction air of the pneumatic side pulling device, namely the housing 1, the drive shaft 2, the curve 3, the valve disk 4, the tube 6, the roller 8, the spring 9, the valve housing 15, the air chamber for suction air 17 and the corresponding holes from a suction air connection 19 at the right end of the tube 6, one pneumatic working cylinder 22 with tappet 23 on the controllable hold-down device 21, a suction air connection 29 and associated connecting lines and a straight guide 30 for the hold-down device 21.
  • the movable hold-down device 21 is preferably guided perpendicular to the direction of the sheet travel in a straight guide 30 which is fastened to the stationary side marks 20.
  • the straight guide 30 has a bore concentric to the plunger 23 of the working cylinder and diagonally opposite the plunger 23 two spring rods 26. These are connected to the hold-down 21 in one approach.
  • the springs 25 of the spring rods 26 are supported upwards on a disk 27 with adjusting nut 28 and downwards on the straight guide 30.
  • the pneumatic working cylinder 22 has an opening according to FIG. 2, which opens into the suction air connection 29.
  • the controllable hold-down device 21 lies non-positively on the sheet being pulled off and, as soon as it has entered the machine, on the next sheet to be aligned on its side edge and simultaneously to be smoothed.
  • the movable hold-down device 21 is pushed upward again by the force of the springs 25 from the sheet-metal sheet of the sheet feeder.
  • the pneumatic control device described above can also be replaced by a mechanical control, not shown in the drawing, for example by means of a cam-controlled lifting and lowering device for the hold-down device 21, which can be controlled by a single-speed shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Coating With Molten Metal (AREA)
  • Paper (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Pile Receivers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

In order to ensure the unhindered infeeding of a sheet beneath a holding-down clamp near to the fixed sidemark of a side-pull device as well as a gentle smoothing of the lateral edge of the sheet by the holding-down clamp, a controllable holding-down clamp (21) is arranged so as to be movable up and down perpendicularly to the direction of sheet movement near to the fixed side-mark (20), and is raised by a controlling device after each lateral alignment of the sheet and lowered again for smoothing the lateral edge of the following sheet to be aligned on its lateral edge.

Description

Die Erfindung betrifft eine Bogenglätteinrichtung für die Seitenkante eines Bogens mit einem Niederhalter, der in der Nähe der ortsfesten Seitenmarke einer Seitenziehvorrichtung oberhalb des Anlegebleches in der Bogenanlage einer Bogen­rotationsdruckmaschine angeordnet ist.The invention relates to a sheet smoothing device for the side edge of a sheet with a hold-down device which is arranged in the vicinity of the fixed side mark of a side pulling device above the contact plate in the sheet system of a sheet-fed rotary printing press.

Das Ausrichten der zu bedruckenden Bogen ist bekanntermaßen in Umfangs- und Seitenrichtung erforderlich, um einen genauen Passer beim zweiten Durchgang bzw. bei der Weiterverarbeitung zu gewährleisten. Die Anforderungen an den Passer sind für Bogenmaschinen außerordentlich hoch. Der Bogen wird durch den Schub von Bändern bzw. den Schub der nachfolgenden Bogen über Reibschluß ständig an Vordermarken, d.h. an Gleichanschläge in der Bogenanlage getrieben. Damit die Bogen während des seitlichen Ausrichtens an der Seitenkante nicht ausbeulen können, ist es bereits aus der Praxis bekannt, einen in der Höhe verstellbaren Niederhalter oder dgl. zum Verhindern des Papierausbeulens an der ortsfesten Seitenmarke anzuordnen. Dieser muß zügig auf eine Bogenstärke eingestellt werden, so daß ein doppelter Bogen sich nicht einschieben läßt. Diese zügige Einstellung auf Bogenstärke behindert aber das Einlaufen des Bogens unter den Niederhalter, speziell wenn die Maschinengeschwindigkeit gesteigert werden soll. Hierbei kann in Bezug auf den Seitenpasser der optimale Fortdruck beeinträchtigt werden.The alignment of the sheets to be printed is known to be necessary in the circumferential and lateral directions in order to ensure a precise register during the second pass or during further processing. The registration requirements are extremely high for sheetfed presses. The sheet is constantly pushed to the front marks by the pushing of tapes or the pushing of the following sheets via frictional engagement, i.e. driven to equal stops in the bow system. So that the sheets cannot bulge on the side edge during the lateral alignment, it is already known from practice to arrange a hold-down device or the like which is adjustable in height in order to prevent paper bulging on the stationary side mark. This must be quickly set to a sheet thickness so that a double sheet cannot be inserted. However, this rapid adjustment to the sheet thickness hinders the sheet from entering under the hold-down device, especially if the machine speed is to be increased. Here, the optimal production can be impaired with regard to the page register.

Aus der DE-PS 3 521 590 ist eine auf- und absteuerbare Bogen­glätteinrichtung für die Kante eines Bogens an der Bogenan­lage einer Bogenrotationsdruckmaschine bekannt. Diese Bogen­glätteinrichtung ist aber zum Glätten der Greiferkante, d.h. der Vorderkante des Bogens, aber nicht zum Glätten der Seitenkante in Verbindung mit dem Seitenziehvorgang ausgebildet.From DE-PS 3 521 590 an up and down controllable sheet smoothing device for the edge of a sheet on the sheet system of a sheet-fed rotary printing press is known. However, this sheet smoothing device is designed for smoothing the gripper edge, ie the front edge of the sheet, but not for smoothing the side edge in connection with the side pulling process.

Aufgabe der Erfindung ist es, eine Bogenglätteinrichtung für die Seitenkante eines Bogens an einer ortsfesten Seitenmarke einer Seitenziehvorrichtung einer Bogenrotationsdruckmaschine zu schaffen, bei der sowohl das ungehinderte Einlaufen des Bogens unter den Niederhalter als auch ein schonendes Glätten der Seitenkante gewährleistet ist.The object of the invention is to provide a sheet smoothing device for the side edge of a sheet on a stationary side mark of a side pulling device of a sheet-fed rotary printing press, in which both the unimpeded entry of the sheet under the hold-down device and gentle smoothing of the side edge is ensured.

Diese Aufgabe wird durch die Anwendung der Merkmale des kennzeichnenden Teiles des Patentanspruches 1 gelöst. Weiter­bildungen ergeben sich aus den Unteransprüchen.This object is achieved by applying the features of the characterizing part of patent claim 1. Further training results from the subclaims.

Ein Ausführungsbeispiel soll nachfolgend an Hand der Zeichnung näher beschrieben werden.An embodiment will be described below with reference to the drawing.

Es zeigt:

  • Fig. 1 eine pneumatische Seitenziehvorrichtung mit der erfindungsgemäßen Bogenglätteinrichtung, teilweise schematisch,
  • Fig. 2 die erfindungsgemäße Bogenglätteinrichtung als Einzelheit in einem Querschnitt A-B nach Fig. 4,
  • Fig. 3 die erfindungsgemäße Bogenglätteinrichtung als Einzelheit in einem Längsschnitt,
  • Fig. 4 die Draufsicht auf die erfindungsgemäße Bogenglätteinrichtung.
It shows:
  • 1 shows a pneumatic side pulling device with the sheet smoothing device according to the invention, partly schematically,
  • 2 shows the sheet smoothing device according to the invention as a detail in a cross section AB according to FIG. 4,
  • 3 the sheet smoothing device according to the invention as a detail in a longitudinal section,
  • Fig. 4 is a plan view of the sheet smoothing device according to the invention.

Der Einsatz der erfindungsgemäß steuerbaren Bogenglättein­richtung kann in gebräuchlichen Bogenanlegern sowohl in Verbindung mit mechanischen Seitenziehvorrichtungen als auch in Verbindung mit pneumatischen Seitenziehvorrichtungen erfolgen, wobei die Steuerung der Bewegung der Bogenglätt­einrichtung in einer dem Fachmann naheliegenden Weise entweder separat oder von der Steuerung der Ziehbewegung abgeleitet realisierbar ist. Bei separater Steuerung muß aber die taktmäßig richtige Zuordnung zum Seitenziehvorgang erhalten bleiben.The use of the sheet smoothing device which can be controlled according to the invention can be used in conventional sheet feeders both in connection with mechanical side pulling devices and in connection with pneumatic side pulling devices, wherein the control of the movement of the sheet smoothing device can be implemented either separately or derived from the control of the pulling movement in a manner which is obvious to the person skilled in the art. With separate control, however, the correct assignment to the side pull process must be maintained.

Nachstehend wird die erfindungsgemäße Bogenglätteinrichtung am Beispiel einer pneumatischen Seitenziehvorrichtung erläutert, wobei die Steuerung der Bewegung der Bogenglätt­einrichtung zeitgleich von der Ziehbewegung der pneumatischen Seitenziehvorrichtung abgeleitet werden soll. Eine steuerbare Bogenglätteinrichtung 18 weist in Verbindung mit einer pneu­matischen Seitenziehvorrichtung den Vorteil einer längeren Zugzeit und somit einer höheren Maschinengeschwindigkeit bei geringem Aufprallimpuls an der Seitenmarke 20 auf, weil nicht erst abgewartet werden muß, bis das Bogenende des oben liegenden Bogens die Seitenmarke verlassen hat, wie das bei einer mechanischen Seitenziehvorrichtung erforderlich ist.The sheet smoothing device according to the invention is explained below using the example of a pneumatic side pulling device, the control of the movement of the sheet smoothing device being derived simultaneously from the pulling movement of the pneumatic side pulling device. A controllable sheet smoothing device 18, in conjunction with a pneumatic side pulling device, has the advantage of a longer pulling time and thus a higher machine speed with a low impact impulse at the side mark 20, because there is no need to wait until the end of the sheet lying above has left the side mark, such as that is required with a mechanical side pulling device.

Gemäß Fig. 1 ist an der ortsfesten Seitenmarke 20 einer pneumatischen Seitenziehvorrichtung mittels einer Zwischen­scheibe 24 und einer nicht mit einem Bezugszeichen versehenen Schraube eine Bogenglätteinrichtung 18 mit einem steuerbaren Niederhalter 21 befestigt. Die mit der Bogenglätteinrichtung zusammenwirkende pneumatische Seitenziehvorrichtung besteht gemäß dem Ausführungsbeispiel aus einem Gehäuse 1 und einer Antriebswelle 2, die eine Kurve 3 und zwei Ventilscheiben 4, 5 trägt. Die Antriebswelle 2 ist im Gehäuse 1 gelagert. Die Ventilscheiben 4 und 5 befinden sich in einem mit dem Gehäuse 1 fest verbundenen Ventilgehäuse 15, daß von verschiedenen Bohrungen durchdrungen wird.1, an arc smoothing device 18 with a controllable hold-down device 21 is fastened to the stationary side mark 20 of a pneumatic side pulling device by means of an intermediate washer 24 and a screw not provided with a reference number. According to the exemplary embodiment, the pneumatic side pulling device interacting with the sheet smoothing device consists of a housing 1 and a drive shaft 2, which carries a curve 3 and two valve disks 4, 5. The drive shaft 2 is mounted in the housing 1. The valve disks 4 and 5 are located in a valve housing 15 which is firmly connected to the housing 1 and which is penetrated by various bores.

Auf einem Rohr 6 ist ein Schlitten 7 gleitend angeordnet, der mit einer Rolle 8 auf der Kurve 3 abläuft. Der Schlitten 7 wird durch eine Feder 9 gegen die Kurve 3 gedrückt und folgt deren Verlauf.A slide 7 is slidably arranged on a tube 6 and runs on the curve 3 with a roller 8. The carriage 7 is pressed against the curve 3 by a spring 9 and follows its course.

Der Schlitten 7 ist mit einem Rohrstutzen 10 versehen und befindet sich über einer Öffnung 11, die im Rohr 6 vorgesehen ist. Im Bereich des Rohrstutzens 10 ist der Schlitten 7 mit einer quer zur Schlittenbewegung verlaufenden Führungsnut 12 versehen, in der ein Sauger 13 gleitend gelagert ist.The carriage 7 is provided with a pipe socket 10 and is located above an opening 11 which is provided in the pipe 6. In the area of the pipe socket 10, the slide 7 is provided with a guide groove 12 which runs transversely to the slide movement and in which a suction cup 13 is slidably mounted.

Durch einen Anschlag 14 wird die Bewegung des Schlittens 7 auf dem Rohr 6 begrenzt.The movement of the carriage 7 on the tube 6 is limited by a stop 14.

Durch den Einbau des Ventilblocks in das Gehäuse 1 entstehen 2 Luftkammern 16, 17, eine für Blasluft 16 und eine für Saugluft 17. Um in diese Luftkammern 16, 17 Luft einleiten zu können, sind die im Ventilgehäuse 15 vorhandenen Bohrungen bestimmt.The installation of the valve block in the housing 1 creates 2 air chambers 16, 17, one for blowing air 16 and one for suction air 17. In order to be able to introduce air into these air chambers 16, 17, the bores in the valve housing 15 are determined.

Das Rohr 6 wird mit einer Saugpumpe verbunden, so daß der Weg der Luft vom Sauger 13 aus wie folgt verläuft: Die Luft strömt über den Sauger 13 durch den Rohrstutzen 10 und den Durchbruch 11 in das rechte Ende des Saugrohres 6. Von da aus gelangt die Luft über eine Bohrung in die Saugkammer 17 des Ventilgehäuses 15. Durch die Ventilscheibe 4 gesteuert wird dann die Luft über Bohrungen in das linke Ende des Rohres 6 geleitet. Das rechte und linke Ende des Rohres 6 sind durch einen Stopfen getrennt.The pipe 6 is connected to a suction pump, so that the path of the air from the suction device 13 is as follows: the air flows via the suction device 13 through the pipe socket 10 and the opening 11 into the right end of the suction pipe 6. From there the air through a hole in the suction chamber 17 of the valve housing 15. Controlled by the valve disk 4, the air is then guided through holes in the left end of the tube 6. The right and left ends of the tube 6 are separated by a stopper.

Somit kann der auszurichtende Bogen durch den Sauger 13 festgehalten werden.Thus, the sheet to be aligned can be held in place by the suction device 13.

Durch die Feder 9 und die Kurve 3 wird der Bogen vom Sauger 13 gegen die Seitenmarke 20 gefördert. Die Ventilscheibe 4 ist dabei so ausgebildet, daß während des seitlichen Ausrichtens stets Saugluft in Sauger 13 beaufschlagt. Durch die freie Bewegbarkeit des Saugers 13 in der Führungsnut 12 in Bogenlaufrichtung ist gewährleistet, daß eine fehlerhafte Anlage des Bogens an den vorderen Bogenanschlägen vermieden wird.The bow is conveyed by the suction device 13 against the side mark 20 by the spring 9 and the curve 3. The valve disc 4 is designed so that suction air is always applied to the suction device 13 during the lateral alignment. The free movement of the suction device 13 in the guide groove 12 in the direction of sheet travel ensures that incorrect contact of the sheet with the front sheet stops is avoided.

Damit ein exaktes Trennen zwischen Sauger 13 und Bogen gewährleistet ist, wird, wenn der Vorgreifer den Bogen erfaßt hat, Blasluft dem Sauger 13 zugeführt. Diese gelangt über die Blasluftkammer 16, die Ventilscheibe 5 und Bohrungen in den Sauger 13.So that an exact separation between the suction device 13 and the sheet is guaranteed, blown air is supplied to the suction device 13 when the pre-gripper has gripped the sheet. This passes through the blown air chamber 16, the valve disk 5 and bores in the suction device 13.

Gemäß Fig. 1 bis 4 ist der steuerbare Niederhalter 21 der Bogenglätteinrichtung 18 senkrecht zur Richtung des Bogen­laufes auf- und abbewegbar angeordnet. Durch eine Steuervor­richtung wird der bewegliche Niederhalter 21 jeweils nach dem Ausrichten des Bogens an seiner Seitenkante angehoben und zur Glättung der Seitenkante des nächstfolgenden, an seiner Seitenkante auszurichtenden Bogens wieder abgesenkt. Dabei ist der bewegliche Niederhalter 21 durch ortsfest abgestützte Federn 25 vom Anlegeblech wegdrückbar. Der bewegliche Nieder­halter 21 wird durch eine pneumatische Steuervorrichtung gegen den Druck der Federn 25 wieder abgesenkt.1 to 4, the controllable hold-down device 21 of the sheet smoothing device 18 is arranged such that it can be moved up and down perpendicularly to the direction of the sheet travel. By means of a control device, the movable hold-down device 21 is raised on its side edge after the alignment of the sheet and lowered again to smooth the side edge of the next sheet to be aligned on its side edge. The movable hold-down 21 can be pressed away from the contact plate by means of springs 25 which are supported in a stationary manner. The movable hold-down device 21 is lowered again by a pneumatic control device against the pressure of the springs 25.

Die pneumatische Steuervorrichtung besteht neben den Funktionsteilen zur Steuerung der Saugluft der pneumatischen Seitenziehvorrichtung, nämlich dem Gehäuse 1, der Antriebs­welle 2, der Kurve 3, der Ventilscheibe 4, dem Rohr 6, der Rolle 8, der Feder 9, dem Ventilgehäuse 15, der Luftkammer für Saugluft 17 und den entsprechenden Bohrungen aus einem Saugluftanschluß 19 am rechten Ende des Rohres 6, einem pneumatischen Arbeitszylinder 22 mit Stößel 23 am steuerbaren Niederhalter 21, einem Saugluftanschluß 29 sowie zugehörigen Verbindungsleitungen und einer Geradführung 30 für den Niederhalter 21.The pneumatic control device consists in addition to the functional parts for controlling the suction air of the pneumatic side pulling device, namely the housing 1, the drive shaft 2, the curve 3, the valve disk 4, the tube 6, the roller 8, the spring 9, the valve housing 15, the air chamber for suction air 17 and the corresponding holes from a suction air connection 19 at the right end of the tube 6, one pneumatic working cylinder 22 with tappet 23 on the controllable hold-down device 21, a suction air connection 29 and associated connecting lines and a straight guide 30 for the hold-down device 21.

Der bewegliche Niederhalter 21 ist senkrecht zur Richtung des Bogenlaufes vorzugsweise in einer Geradführung 30 geführt, die an der ortsfesten Seitenmarken 20 befestigt ist. Die Geradführung 30 weist eine Bohrung konzentrisch zum Stößel 23 des Arbeitszylinders sowie diagonal dem Stößel 23 gegenüber liegend zwei Federstangen 26 auf. Diese sind mit dem Nieder­halter 21 in einem Ansatz verbunden. Die Federn 25 der Feder­stangen 26 stützen sich nach oben an einer Scheibe 27 mit Stellmutter 28 sowie nach unten auf der Geradführung 30 ab.The movable hold-down device 21 is preferably guided perpendicular to the direction of the sheet travel in a straight guide 30 which is fastened to the stationary side marks 20. The straight guide 30 has a bore concentric to the plunger 23 of the working cylinder and diagonally opposite the plunger 23 two spring rods 26. These are connected to the hold-down 21 in one approach. The springs 25 of the spring rods 26 are supported upwards on a disk 27 with adjusting nut 28 and downwards on the straight guide 30.

Zur Führung der Saugluft weist der pneumatische Arbeitszylin­der 22 einen Durchbruch gemäß Fig. 2 auf, der in den Saug­luftanschluß 29 mündet.To guide the suction air, the pneumatic working cylinder 22 has an opening according to FIG. 2, which opens into the suction air connection 29.

Sobald die pneumatische Seitenziehvorrichtung zu ziehen beginnt, werden der Stößel 23 und die Federstangen 26 zeit­gleich mit der Saugluft der Seitenziehvorrichtung nach unten gezogen. Der steuerbare Niederhalter 21 legt sich kraft­schlüssig auf den abziehenden Bogen und sobald dieser in die Maschine eingelaufen ist, auf den nächstfolgenden an seiner Seitenkante auszurichtenden und gleichzeitig zu glättenden Bogen auf.As soon as the pneumatic side pulling device starts to pull, the plunger 23 and the spring rods 26 are pulled down simultaneously with the suction air of the side pulling device. The controllable hold-down device 21 lies non-positively on the sheet being pulled off and, as soon as it has entered the machine, on the next sheet to be aligned on its side edge and simultaneously to be smoothed.

Es ist daher kein Spalt zwischen dem Anlegeblech und dem zu ziehenden Bogen. Der gezogene Bogen kann am Anschlag, d.h. der ortsfesten Seitenmarke 20 nicht ausbeulen und die Zugkraft sowie die Maschinengeschwindigkeit können gesteigert werden, ohne daß das Einlaufen in die Seitenmarke wegen des Niederhalters 21 Probleme bereitet.There is therefore no gap between the sheet and the sheet to be drawn. The drawn sheet cannot bulge at the stop, ie the stationary side mark 20, and the tensile force and the machine speed can be increased without running into the side mark causing problems due to the hold-down device 21.

Zur periodischen Veränderung der Intensität des am Stößel 23 anliegenden Vakuums kann es sinnvoll sein, dessen Saugluft separat vom Ziehvorgang zu verändern. Hierzu ist z.B. ledig­lich ein zusätzliches Ventil oder eine regelbare Fremd­luftbohrung oder dgl. in die Verbindungsleitung zum pneuma­tischen Arbeitszylinder am beweglichen Niederhalter einzufügen.To periodically change the intensity of the vacuum applied to the plunger 23, it can be useful to change its suction air separately from the drawing process. For this, e.g. just insert an additional valve or a controllable external air hole or the like into the connection line to the pneumatic working cylinder on the movable hold-down device.

Nach dem Abschalten der Saugluft und der Beendigung des seitlichen Ziehvorganges wird der bewegliche Niederhalter 21 durch die Kraft der Federn 25 nach oben vom Anlegeblech der Bogenanlage jeweils wieder weggedrückt.After the suction air has been switched off and the lateral pulling process has ended, the movable hold-down device 21 is pushed upward again by the force of the springs 25 from the sheet-metal sheet of the sheet feeder.

Einzelheiten der im Ausführungsbeispiel gemäß Fig. 1 verwen­deten, bekannten Seitenziehvorrichtung sind in der DE-PS 2 824 932 erläutert und deswegen wird hier nicht näher auf diese Einzelheiten eingegangen.Details of the known side pulling device used in the exemplary embodiment according to FIG. 1 are explained in DE-PS 2 824 932 and therefore these details are not discussed in more detail here.

Die vorstehend beschriebene pneumatische Steuervorrichtung läßt sich auch durch eine in der Zeichnung nicht dargestellte mechanische Steuerung, z.B. mittels einer von einer Eintourenwelle ansteuerbaren, kurvengesteuerten Hebe- und Senkvorrichtung für den Niederhalter 21 ersetzen.The pneumatic control device described above can also be replaced by a mechanical control, not shown in the drawing, for example by means of a cam-controlled lifting and lowering device for the hold-down device 21, which can be controlled by a single-speed shaft.

BezugszeichenlisteReference symbol list

  • 1 Gehäuse1 housing
  • 2 Antriebswelle2 drive shaft
  • 3 Kurve3 curve
  • 4 Ventilscheibe4 valve disc
  • 5 Ventilscheibe5 valve disc
  • 6 Rohr6 pipe
  • 7 Schlitten7 sledges
  • 8 Rolle8 roll
  • 9 Feder9 spring
  • 10 Rohrstutzen10 pipe sockets
  • 11 Durchbruch11 breakthrough
  • 12 Führungsnut12 guide groove
  • 13 Sauger13 suction cups
  • 14 Anschlag14 stop
  • 15 Ventilgehäuse15 valve housing
  • 16 Luftkammer für Blasluft16 Air chamber for blown air
  • 17 Luftkammer für Saugluft17 Air chamber for suction air
  • 18 Glätteinrichtung18 smoothing device
  • 19 Saugluftanschluß19 Suction air connection
  • 20 ortsfeste Seitenmarke20 stationary side mark
  • 21 steuerbarer Niederhalter21 controllable hold-down devices
  • 22 pneuamtischer Arbeitszylinder22 pneumatic cylinders
  • 23 Stößel23 plungers
  • 24 Zwischenscheibe24 washer
  • 25 Feder25 spring
  • 26 Federstange26 spring rod
  • 27 Scheibe27 disc
  • 28 Stellmutter28 adjusting nut
  • 29 Saugluftanschluß29 Suction air connection
  • 30 Geradführung30 straight guidance

Claims (3)

1.) Bogenglätteinrichtung für die Seitenkante eines Bogens mit einem Niederhalter, der in der Nähe an der ortsfesten Seitenmarke einer Seitenziehvorrichtung oberhalb des Anlegebleches in der Bogenanlage einer Bogenrotations­druckmaschine angeordnet ist,
dadurch gekennzeichnet,
daß ein steuerbarer Niederhalter (21) senkrecht zur Richtung des Bogenlaufes auf- und abbeweglich in der Nähe der ortsfesten Seitenmarke (20) oberhalb des Anlege­bleches angeordnet ist, der durch eine Steuervorrichtung jeweils nach dem seitlichen Ausrichten des Bogens angehoben und zur Glättung der Seitenkante des nächst­folgenden, an seiner Seitenkante auszurichtenden Bogens wieder abgesenkt wird.1.) sheet smoothing device for the side edge of a sheet with a hold-down device, which is arranged in the vicinity of the stationary side mark of a side pulling device above the contact plate in the sheet system of a sheet-fed rotary printing machine,
characterized by
that a controllable hold-down device (21) is arranged vertically to the direction of the sheet movement up and down in the vicinity of the fixed side mark (20) above the contact plate, which is raised by a control device after each lateral alignment of the sheet and to smooth the side edge of the next one is lowered again on its side edge to be aligned. 2.) Bogenglätteinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der steuerbare Niederhalter (21) durch mindestens eine ortsfest abgestützte Feder (25) vom Anlegeblech wegdrückbar ist und daß der steuerbare Niederhalter (21) gegen den Druck der Feder (25) durch eine pneumatische Steuervorrichtung wieder absenkbar ist, die aus der Steuereinheit (1, 2, 3, 4, 6, 8, 9, 15, 17) einer pneumatischen Seitenziehvorrichtung (Fig. 1) besteht, an die über Saugluftanschlüsse (19, 29) ein pneumatischer Arbeitszylinder (22) mit Stößel (23) angeschlossen ist, der an dem senkrecht zur Richtung des Bogenlaufes in einer Geradführung (30) geführten Niederhalter (21) angreift.2.) sheet smoothing device according to claim 1,
characterized by
that the controllable hold-down device (21) can be pushed away from the abutment plate by at least one stationary spring (25) and that the controllable hold-down device (21) can be lowered again against the pressure of the spring (25) by a pneumatic control device which can be removed from the Control unit (1, 2, 3, 4, 6, 8, 9, 15, 17) of a pneumatic side pulling device (Fig. 1), to which a pneumatic working cylinder (22) with plunger (23) is connected via suction air connections (19, 29) is connected, which acts on the hold-down device (21) guided in a straight guide (30) perpendicular to the direction of the sheet travel. 3.) Bogenglätteinrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß der steuerbare Niederhalter (21) senkrecht zur Richtung des Bogenlaufes in einer Geradführung (30) geführt ist, die an der ortsfesten Seitenmarke (20) befestigt ist.3.) sheet smoothing device according to claim 1 and 2,
characterized by
that the controllable hold-down device (21) is guided perpendicular to the direction of the sheet travel in a straight guide (30) which is attached to the fixed side mark (20).
EP88105257A 1987-05-14 1988-03-31 Guiding device for the sides of a sheet Expired - Lifetime EP0297220B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105257T ATE84493T1 (en) 1987-05-14 1988-03-31 CUSHIONING DEVICE FOR THE SIDE EDGE OF A SHEET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3716085 1987-05-14
DE19873716085 DE3716085A1 (en) 1987-05-14 1987-05-14 ARCH SMOOTHING DEVICE FOR THE SIDE EDGE OF A BOW

Publications (3)

Publication Number Publication Date
EP0297220A2 true EP0297220A2 (en) 1989-01-04
EP0297220A3 EP0297220A3 (en) 1990-02-28
EP0297220B1 EP0297220B1 (en) 1993-01-13

Family

ID=6327509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105257A Expired - Lifetime EP0297220B1 (en) 1987-05-14 1988-03-31 Guiding device for the sides of a sheet

Country Status (3)

Country Link
EP (1) EP0297220B1 (en)
AT (1) ATE84493T1 (en)
DE (2) DE3716085A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419256A (en) * 1992-12-17 1995-05-30 Heidelberger Druckmaschinen Aktiengesellschaft Device for laterally aligning sheets being fed into a printing press and method for aligning the sheets
GB2312422A (en) * 1996-04-23 1997-10-29 Roland Man Druckmasch Sheet guiding apparatus
EP1362811A2 (en) * 2002-05-17 2003-11-19 Koenig & Bauer Aktiengesellschaft Apparatus for adjusting the sheet hold down device
AT500391A1 (en) * 2002-10-02 2005-12-15 Roland Man Druckmasch LOW MOUNTING DEVICE IN THE BOWING SYSTEM

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047077B4 (en) * 2000-09-22 2005-08-11 Koenig & Bauer Ag Device for lateral alignment
DE10048314B4 (en) * 2000-09-28 2005-09-08 Koenig & Bauer Ag Page puller
DE102009027868A1 (en) 2008-09-03 2010-03-04 Manroland Ag Bow guide for the side edge of a bow

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647205A (en) * 1970-05-15 1972-03-07 Polygraph Leipzig Method and apparatus for feeding of sheets fittingly aligned to a machine
DE2901188A1 (en) * 1978-04-19 1979-10-31 Polygraph Leipzig Paper sheet aligner for printing machines - has front markers and sideways drawing device with holder acting against it
EP0005863A1 (en) * 1978-06-07 1979-12-12 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Pneumatic side-pull-device for lateral alignment of a sheet on the feeding board of a sheet treating machine, particularly of a printing machine
DE3521590C1 (en) * 1985-06-15 1986-08-21 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Sheet smoothing device for the gripper edge of a sheet on the sheet system of a sheet-fed rotary printing machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929377A1 (en) * 1979-07-20 1981-02-12 Mabeg Maschinenbau Gmbh Nachf Printing press sheet lateral alignment system - has pneumatic rams actuating pressure roller and hinging transport segment
DE2929388A1 (en) * 1979-07-20 1981-02-05 Mabeg Maschinenbau Gmbh Nachf Printing sheet lateral alignment mechanism - has suction opening and grip controlled by valve operating to given cycle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647205A (en) * 1970-05-15 1972-03-07 Polygraph Leipzig Method and apparatus for feeding of sheets fittingly aligned to a machine
DE2901188A1 (en) * 1978-04-19 1979-10-31 Polygraph Leipzig Paper sheet aligner for printing machines - has front markers and sideways drawing device with holder acting against it
EP0005863A1 (en) * 1978-06-07 1979-12-12 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Pneumatic side-pull-device for lateral alignment of a sheet on the feeding board of a sheet treating machine, particularly of a printing machine
DE3521590C1 (en) * 1985-06-15 1986-08-21 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Sheet smoothing device for the gripper edge of a sheet on the sheet system of a sheet-fed rotary printing machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419256A (en) * 1992-12-17 1995-05-30 Heidelberger Druckmaschinen Aktiengesellschaft Device for laterally aligning sheets being fed into a printing press and method for aligning the sheets
GB2312422A (en) * 1996-04-23 1997-10-29 Roland Man Druckmasch Sheet guiding apparatus
GB2312422B (en) * 1996-04-23 1998-04-01 Roland Man Druckmasch Sheet guiding apparatus on a side pulling device for a sheet processing machine
EP1362811A2 (en) * 2002-05-17 2003-11-19 Koenig & Bauer Aktiengesellschaft Apparatus for adjusting the sheet hold down device
EP1362811A3 (en) * 2002-05-17 2004-12-22 Koenig & Bauer Aktiengesellschaft Apparatus for adjusting the sheet hold down device
AT500391A1 (en) * 2002-10-02 2005-12-15 Roland Man Druckmasch LOW MOUNTING DEVICE IN THE BOWING SYSTEM
AT500391B1 (en) * 2002-10-02 2006-11-15 Roland Man Druckmasch LOW MOUNTING DEVICE IN THE BOWING SYSTEM

Also Published As

Publication number Publication date
DE3716085C2 (en) 1990-05-17
EP0297220A3 (en) 1990-02-28
ATE84493T1 (en) 1993-01-15
EP0297220B1 (en) 1993-01-13
DE3716085A1 (en) 1988-12-01
DE3877432D1 (en) 1993-02-25

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