EP0802053B1 - Sheet guiding device for a sheet transfer cylinder in a printing machine - Google Patents

Sheet guiding device for a sheet transfer cylinder in a printing machine Download PDF

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Publication number
EP0802053B1
EP0802053B1 EP97103903A EP97103903A EP0802053B1 EP 0802053 B1 EP0802053 B1 EP 0802053B1 EP 97103903 A EP97103903 A EP 97103903A EP 97103903 A EP97103903 A EP 97103903A EP 0802053 B1 EP0802053 B1 EP 0802053B1
Authority
EP
European Patent Office
Prior art keywords
sheet
guiding device
guide
printing press
press cylinder
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
EP97103903A
Other languages
German (de)
French (fr)
Other versions
EP0802053A1 (en
Inventor
Hanns-Otto Haas
Bernd Lindner
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
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0802053A1 publication Critical patent/EP0802053A1/en
Application granted granted Critical
Publication of EP0802053B1 publication Critical patent/EP0802053B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/36—Article guides or smoothers, e.g. movable in operation
    • B65H5/38—Article guides or smoothers, e.g. movable in operation immovable in operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/102—Combinations of transfer drums and grippers with pneumatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F25/00—Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid

Definitions

  • the invention relates to a sheet guiding device for a sheet-guiding printing press cylinder according to the preamble of the main claim.
  • Another sheet guiding device is known from DE 3 608 795 A1. After that is before and after a printing zone the arrangement of one across the width of the sheet Blower tube known with nozzles, which have an actuating element between the bend and blow tube.
  • the blowing device 3 has the curvature of the printing press cylinder adapted hollow guide elements 4.
  • the guide elements 4 are multiple side by side, preferably spaced, over the length of the printing press cylinder analog to Bladder 3 arranged on this.
  • Each hollow guide element 4 faces the arch 1 facing contour outlet openings 5, e.g. Holes, on
  • the guide elements 4 are coupled to the blowing device 3 by each cavity a guide element 4 through a flow opening 6 with the cavity of the Blower unit 3 is connected.
  • the blowing unit 3 also has one for each guide element 4 a locking element 7 carrying actuator 8.
  • the closure element 7 is the Flow opening 6 assigned.
  • Each actuating device 8 is provided with signal connection 9, which with a controller 10, e.g. a control center.
  • the blowing unit 3 is coupled to an air supply.
  • the mode of operation is as follows:
  • the blower unit 3 is supplied with blown air from the air supply acted upon. This flows out of the cavity of the blowing unit 3 through the open ones Flow openings 6 into the cavity of each guide element 4 and passes through the outlet opening 5 flowing onto the arch 1.
  • the guiding elements 4 which extend beyond the respective format width 2 are separated from the Control 10 individually closed or opened. This is about the sheet format width 2 controlled the switching on and off of the blown air at the outlet openings 5.
  • Receives the actuating device 8 closes a corresponding signal for activation so that it can be switched off of the blown air, the closure element 7, the flow opening 6.
  • the control device 10 activates the actuating device 8.
  • the closure element 7 opens the flow opening 6 and thus gives the way for the blowing air is free, which can strike the sheet 1 from the outlet openings 5. With this, the lubrication-free sheet guidance is realized. Furthermore, the closure element 7, depending on the positioning, the throughflow opening 6 in its degree of opening design variable so that the amount of blown air is regulated. Switching off the blown air supply in the case of the guide elements 4 which extend beyond the format width 2 leads to a Calm sheet guidance on the printing press cylinder, since blowing the sheet 1 omitted and for better pressing of the sheet 1 on the impression cylinder by the force effect the blowing air flowing out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

The guide has a hollow fan unit (3) with several adjacent guide elements (6) matching the curvature of the cylinder and with outlet openings for pressing the sheet over the length of the cylinder under the force of the air flow. Each guide element has an associated control device (8) for switching the blown air on and off. Each control device has a closure element (7) with an associated throughflow opening (6) between each guide element and the fan unit.

Description

Die Erfindung betrifft eine Bogenleiteinrichtung für einen bogenführenden Druckmaschinenzylinder nach dem Oberbegriff des Hauptanspruches.The invention relates to a sheet guiding device for a sheet-guiding printing press cylinder according to the preamble of the main claim.

Eine Bogenleiteinrichtung dieser Art ist aus der EP 0 306 684 B1 bekannt. Die Einrichtung dient dem flächigen Anpressen eines Bogens auf den Druckzylinder. Nach Durchlaufen einer Druckzone wird der Bogen im Bereich zwischen Druckzone und dem Übergabebereich (Tangentenpunkt) einer nachfolgenden Wendetrommel mittels Blasluft auf dem Druckzylinder geführt.A sheet guiding device of this type is known from EP 0 306 684 B1. The facility is used to press a sheet onto the impression cylinder. After going through The sheet becomes a printing zone in the area between the printing zone and the transfer area (Tangent point) of a subsequent turning drum by means of blowing air on the Print cylinder guided.

Eine weitere Bogenleiteinrichtung ist aus der DE 3 608 795 A1 bekannt. Danach ist vor und nach einer Druckzone die Anordnung eines über die Breite des Bogens wirkenden Blasrohres mit Düsen bekannt, die zwischen Bogen und Blasrohr ein Stellelement aufweisen.Another sheet guiding device is known from DE 3 608 795 A1. After that is before and after a printing zone the arrangement of one across the width of the sheet Blower tube known with nozzles, which have an actuating element between the bend and blow tube.

Nachteilig bei diesen Ausführungen ist es, daß die über das Bogenformat hinausreichenden Austrittsöffnungen sich negativ auf die Bogenführung auswirken, indem abhängig vom Format der Bogen durch die Austrittsöffnungen, insbesondere an den Seitenkanten, der Bogen unterblasen wird. Dies führt zu einem unruhigen Bogenlauf und kann zum Abschmieren führen.A disadvantage of these designs is that they go beyond the sheet format Exit openings have a negative effect on the sheet guidance, depending on the Format the sheet through the outlet openings, especially on the side edges, of the Bow is blown. This leads to a restless sheet run and can lead to greasing to lead.

Aufgabe der Erfindung ist es, eine abschmierfreie Bogenführung zu entwickeln, die auch das zu verarbeitende Bogenformat berücksichtigt.The object of the invention is to develop a lubrication-free sheet guide, which also takes into account the sheet format to be processed.

Gelöst wird dies durch die Ausbildungsmerkmale des Hauptanspruches. Weiterbildungen ergeben sich aus den Unteransprüchen.This is solved by the training features of the main claim. Training result from the subclaims.

Zwischen zwei Seitengestellen erstreckt sich die Bogenleiteinrichtung, die vor und/oder nach einer Druckzone dem bogenführenden Druckmaschinezylinder zugeordnet ist. Die einzelnen Leitelemente können dabei dicht nebeneinander angeordnet sein oder auch in definierten Abständen sich über die Länge des Zylinders erstrecken.The sheet guiding device, which is in front of and / or extends between two side frames is assigned to the sheet-guiding printing press cylinder after a printing zone. The Individual guide elements can be arranged close to one another or in defined ones Distances extend over the length of the cylinder.

Erfindungsgemäß werden Leitelemente entsprechend des jeweiligen Bogenformates an den die Formatbreite überschreitenden Leitelementen ab- oder zugeschaltet. Bei kleineren Formaten sind die äußeren pneumatisch beaufschlagbaren Leitelemente abgestellt. Für bestimmte Bedruckstoffe können die Leitelemente auch alternierend zu- bzw. abgeschaltet, auch über das Format hinaus, werden.According to the invention, guide elements are attached to the respective sheet format the guiding elements that exceed the format width are switched on or off. For smaller formats the outer pneumatically actuated guide elements are switched off. For certain Substrates can also be switched on and off alternately, also beyond the format.

Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment.

Dabei zeigt:

Fig. 1
eine Draufsicht auf die Bogenleiteinrichtungen (Ausschnitt),
Fig. 2
eine Blaseinheit mit Leitelement in Seitenansicht (Schnitt).
It shows:
Fig. 1
a plan view of the sheet guide devices (detail),
Fig. 2
a blow unit with guide element in side view (section).

In einer Bogenrotationsdruckmaschine für Schön- und Schön- und Widerdruck ist zwischen zwei Druckwerken eine Wendeeinrichtung angeordnet. Das in Bogenlaufrichtung 11 vorgeordnete Druckwerk wird bei einer Offsetdruckmaschine in bekannter Weise durch einen bogenführenden Druckmaschinenzylinder, ein Gummituchzylinder und ein Plattenzylinder gebildet. Auf die Farb- und Feuchtwerksausbildung soll hier nicht weiter eingegangen werden.In a sheet-fed rotary printing press for perfecting and perfecting is between two printing units arranged a turning device. The in the sheet running direction 11th upstream printing unit is in a known manner by an offset printing press a sheet-fed printing press cylinder, a blanket cylinder and a plate cylinder educated. The ink and dampening system training will not be discussed further here become.

Nach einer durch den Druckmaschinenzylinder und Gummituchzylinder gebildeten Druckzone und vor dem durch Druckmaschinenzylinder und nachgeordneter Wendetrommel gebildeten Übergabebereich ist die erfindungsgemäße Bogenleiteinrichtung angeordnet. Für die jeweilige Betriebsart (Schöndruck/Schön- und Widerdruck) ist die Bogenleiteinrichtung zum Druckmaschinenzylinder an- und abschwenkbar angeordnet. Die Bogenleiteinrichtung wird durch eine hohle Blaseinrichtung 3 gebildet, z.B. einem Blasrohr, welche sich über die Lange des Druckmaschinenzylinders erstreckt.After a printing zone formed by the printing press cylinder and blanket cylinder and in front of the press cylinder and downstream turning drum The sheet guiding device according to the invention is arranged in the transfer area. For the respective operating mode (face / face and reverse printing) is the sheet guiding device arranged to pivot to the printing press cylinder. The sheet guide is formed by a hollow blower 3, e.g. a blowpipe, which extends over the Long of the press cylinder extends.

Um einen Bogen 1 auf der Oberfläche des Druckmaschinenzylinders mit Blasluft flächig angepreßt zu führen, besitzt die Blaseinrichtung 3 an die Krümmung des Druckmaschinenzylinders angepaßte hohle Leitelemente 4. Die Leitelemente 4 sind mehrfach nebeneinander, vorzugsweise beabstandet, über die Lange des Druckmaschinenzylinders analog zur Blaseirrichtung 3 an dieser angeordnet. Jedes hohle Leitelement 4 weist an der dem Bogen 1 zugewandten Kontur Austrittsöffnungen 5, z.B. Bohrungen, aufAround a sheet 1 on the surface of the printing press cylinder with blown air to be pressed, the blowing device 3 has the curvature of the printing press cylinder adapted hollow guide elements 4. The guide elements 4 are multiple side by side, preferably spaced, over the length of the printing press cylinder analog to Bladder 3 arranged on this. Each hollow guide element 4 faces the arch 1 facing contour outlet openings 5, e.g. Holes, on

Weiterhin sind die Leitelemente 4 mit der Blaseinrichtung 3 gekoppelt, indem jeder Hohlraum eines Leitelementes 4 durch eine Durchströmöffnung 6 mit dem Hohlraum der Blaseinheit 3 verbunden ist. Die Blaseinheit 3 weist weiterhin für jedes Leitelement 4 eine ein Verschlußelement 7 tragende Stelleinrichtung 8 auf. Das Verschlußelement 7 ist der Durchströmöffnung 6 zugeordnet. Jede Stelleinrichtung 8 ist mit Signalverbindung 9 versehen, welche mit einer Steuerung 10, z.B. einem Leitstand, gekoppelt ist. Die Blaseinheit 3 ist mit einer Luftversorgung gekoppelt.Furthermore, the guide elements 4 are coupled to the blowing device 3 by each cavity a guide element 4 through a flow opening 6 with the cavity of the Blower unit 3 is connected. The blowing unit 3 also has one for each guide element 4 a locking element 7 carrying actuator 8. The closure element 7 is the Flow opening 6 assigned. Each actuating device 8 is provided with signal connection 9, which with a controller 10, e.g. a control center. The blowing unit 3 is coupled to an air supply.

Die Wirkungsweise ist wie folgt: Die Blaseinheit 3 wird von der Luftversorgung mit Blasluft beaufschlagt. Diese strömt aus dem Hohlraum der Blaseinheit 3 durch die offenen Durchströmöffungen 6 in den Hohlraum jedes Leitelementes 4 und tritt durch die Austrittsöffnung 5 strömend auf den Bogen 1 auf. Bei Verarbeitung von Bedruckstoff mit unterschiedlichen Bogenformaten, insbesondere bei unterschiedlichen Formatbreiten 2, werden die über die jeweilige Formatbreite 2 hinausreichenden Leitelemente 4 von der Steuerung 10 einzeln verschlossen oder auch geöffnet. Damit wird über die Bogenformatbreite 2 das Zu- bzw. Abschalten der Blasluft an den Austrittsöffnungen 5 gesteuert. Erhält die Stelleinrichtung 8 ein entsprechendes Signal zur Aktivierung, so verschließt zwecks abschalten der Blasluft das Verschlußelement 7 die Durchströmöffnung 6. Soll die Blasluft zugeschaltet werden, so wird von der Steuerung 10 wiederum die Stelleinrichtung 8 aktiviert. Das Verschlußelement 7 öffnet die Durchströmöffnung 6 und gibt somit den Weg für die Blasluft frei, welche aus den Austrittsöffnungen 5 auf den Bogen 1 auftreffen kann. Damit wird die abschmierfreie Bogenführung realisiert. Weiterhin kann das Verschlußelement 7 je nach Positionierung auch die Durchströmöffnung 6 in ihrem Öffnungsgrad variabel gestalten, so daß die Menge an Blasluft geregelt wird. Das Abschalten der Blasluftzuführ bei den über die Formatbreite 2 hinausreichenden Leitelementen 4 führt zu einer ruhigen Bogenführung auf dem Druckmaschinenzylinder, da das Unterblasen der Bogen 1 entfällt und zum besseren Anpressen des Bogens 1 auf den Druckzylinder durch die Kraftwirkung der ausströmenden Blasluft. The mode of operation is as follows: The blower unit 3 is supplied with blown air from the air supply acted upon. This flows out of the cavity of the blowing unit 3 through the open ones Flow openings 6 into the cavity of each guide element 4 and passes through the outlet opening 5 flowing onto the arch 1. When processing printing material with different sheet formats, in particular with different format widths 2, the guiding elements 4, which extend beyond the respective format width 2, are separated from the Control 10 individually closed or opened. This is about the sheet format width 2 controlled the switching on and off of the blown air at the outlet openings 5. Receives the actuating device 8 closes a corresponding signal for activation so that it can be switched off of the blown air, the closure element 7, the flow opening 6. Should the blown air are switched on, the control device 10 in turn activates the actuating device 8. The closure element 7 opens the flow opening 6 and thus gives the way for the blowing air is free, which can strike the sheet 1 from the outlet openings 5. With this, the lubrication-free sheet guidance is realized. Furthermore, the closure element 7, depending on the positioning, the throughflow opening 6 in its degree of opening design variable so that the amount of blown air is regulated. Switching off the blown air supply in the case of the guide elements 4 which extend beyond the format width 2 leads to a Calm sheet guidance on the printing press cylinder, since blowing the sheet 1 omitted and for better pressing of the sheet 1 on the impression cylinder by the force effect the blowing air flowing out.

BezugszeichenlisteReference list

11
Bogenbow
22nd
FormatbreiteFormat width
33rd
BlaseinheitBlowing unit
44th
LeitelementGuide element
55
AustrittsöffnungOutlet opening
66
DurchströmöffnungFlow opening
77
VerschlußelementClosure element
88th
StelleinrichtungActuator
99
SignalverbindungSignal connection
1010th
Steuerungcontrol
1111
BogenlaufrichtungDirection of sheet travel

Claims (4)

  1. Sheet guiding device for a sheet feeding printing press cylinder using a hollow blowing unit (3) with several neighbouring guide elements (4) matched to the curvature of the printing press cylinder and provided with outlet openings (5) for pressing the sheet (1) across the length of the printing press cylinder through the force action of flowing air,
    characterised in that to each guide element (4) on the blowing unit (3) is fixed an adjusting device (8) for switching the blown air on and off, that each adjusting device (8) has a closure element (7) which is fitted to a throughflow opening (6) arranged between each guide element (4) and blowing unit (3).
  2. Sheet guiding device according to Claim 1,
    characterised in that each adjusting device (8) is linked via a signal connection (9) with a control (10).
  3. Sheet guiding device according to Claim 1,
    characterised in that the guide elements (4) extending past a sheet format (2) can be switched off.
  4. Sheet guiding device according to Claim 1,
    characterised in that the guide elements extending past the sheet format (2) can be alternately switched off.
EP97103903A 1996-04-19 1997-03-08 Sheet guiding device for a sheet transfer cylinder in a printing machine Expired - Lifetime EP0802053B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29607087U 1996-04-19
DE29607087U DE29607087U1 (en) 1996-04-19 1996-04-19 Sheet guiding device for a sheet-guiding printing press cylinder

Publications (2)

Publication Number Publication Date
EP0802053A1 EP0802053A1 (en) 1997-10-22
EP0802053B1 true EP0802053B1 (en) 1999-07-07

Family

ID=8022795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97103903A Expired - Lifetime EP0802053B1 (en) 1996-04-19 1997-03-08 Sheet guiding device for a sheet transfer cylinder in a printing machine

Country Status (4)

Country Link
EP (1) EP0802053B1 (en)
JP (1) JP3034822B2 (en)
AT (1) ATE181881T1 (en)
DE (2) DE29607087U1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701230C1 (en) * 1997-01-16 1998-02-19 Roland Man Druckmasch Pneumatic sheet guide device in printing machine
US6064753A (en) * 1997-06-10 2000-05-16 International Business Machines Corporation System and method for distortion control in live-scan inkless fingerprint images
DE29817317U1 (en) * 1998-09-26 1998-11-19 MAN Roland Druckmaschinen AG, 63075 Offenbach Sheet guiding device with a guiding surface in a printing press
DE19954390C1 (en) * 1999-11-12 2000-10-19 Roland Man Druckmasch Pneumatic sheet feed to a printing press has an outer tube section and a rotating concentric inner tubular section both fitted with control openings which are opened and closed by the rotation of the inner part to allow air through
DE10151423B4 (en) * 2000-10-26 2014-07-24 Heidelberger Druckmaschinen Ag Device for adjusting an air flow influencing a sheet transport in a printing machine, and corresponding method
AU2003280219A1 (en) * 2003-11-17 2004-06-06 Silverbrook Research Pty Ltd Blower box assembly for a printer
DE102004036875A1 (en) * 2004-07-29 2006-02-16 Koenig & Bauer Ag Sheet guiding device in a sheet system
CN103425147A (en) * 2013-09-06 2013-12-04 新乡市瑞博印刷包装机械有限公司 Sheet-fed tension control device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD238357A1 (en) * 1985-06-17 1986-08-20 Polygraph Leipzig DEVICE FOR LUBRICATING ARC IN BOW PRESSURE MACHINES
EP0306684B1 (en) * 1987-09-11 1992-04-08 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Device for pressing a sheet against the impression cylinder in a rotary sheet-fed printing press for multicolour printing
DD294676A5 (en) * 1990-05-28 1991-10-10 Planeta,Druckmaschinenwerk Ag,De SUCTION ROLLER IN EXPENSES OF PRESSURE MACHINES
DE4106904A1 (en) * 1991-03-05 1992-09-10 Koenig & Bauer Ag NOZZLE ARRANGEMENT FOR THE ARC GUIDE IN ARC ROTATION PRINTING MACHINES
DE4410189A1 (en) * 1994-03-24 1995-09-28 Heidelberger Druckmasch Ag Guide device for moving sheet material in printing machines

Also Published As

Publication number Publication date
ATE181881T1 (en) 1999-07-15
EP0802053A1 (en) 1997-10-22
JP3034822B2 (en) 2000-04-17
DE29607087U1 (en) 1996-07-11
DE59700248D1 (en) 1999-08-12
JPH1034882A (en) 1998-02-10

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