EP0029528B1 - Rotary web printing machine with a web connecting device - Google Patents

Rotary web printing machine with a web connecting device Download PDF

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Publication number
EP0029528B1
EP0029528B1 EP80106793A EP80106793A EP0029528B1 EP 0029528 B1 EP0029528 B1 EP 0029528B1 EP 80106793 A EP80106793 A EP 80106793A EP 80106793 A EP80106793 A EP 80106793A EP 0029528 B1 EP0029528 B1 EP 0029528B1
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EP
European Patent Office
Prior art keywords
web
printing
carrier web
holding
clamping jaw
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
Application number
EP80106793A
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German (de)
French (fr)
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EP0029528A1 (en
Inventor
Friedrich Klingler
Erich Wech
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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Filing date
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Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0029528A1 publication Critical patent/EP0029528A1/en
Application granted granted Critical
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Expired 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
    • B65H21/00—Apparatus for splicing webs

Definitions

  • the invention relates to a web-fed rotary printing press with at least one printing unit, a print carrier web feed for each printing unit and a folding unit comprising a cross-cutting device, which can be connected in register with the drive for the printing unit.
  • the invention has for its object to reduce the effort for pulling a paper web after retrofitting for a new print job.
  • the invention creates the possibility of connecting the printed print carrier web which is still in the machine to an unprinted print carrier web in such a way that continued printing in register is possible.
  • the web-fed rotary offset printing press shown in FIG. 1 comprises two printing units 1, 2, each of which is assigned a print carrier web feed 3, 4.
  • the machine further comprises a dryer 5, a cooling device 6 and a folding unit designated overall by 7.
  • a cross cutting device 8 is provided, which can consist of two parallel rollers with cutting knives and cutting grooves in a manner known per se.
  • a main drive motor 9 with a drive shaft 10 is used to drive the web-fed rotary offset printing press during operation.
  • the folder 7 is driven by the drive shaft 10 via a bevel gear pair 11 and a stitch shaft 12.
  • the stub shaft 12 carries a bevel gear pair 13 with which the cross-cutting device 8 is driven.
  • Another pair of bevel gears 14 with a downstream clutch 15 drives the plate cylinders 17 and blanket cylinders 18 of the printing unit 2 via a spur shaft 16.
  • the cylinders 17, 18 can also be driven by a motor 19.
  • the engagement movement of the clutch 15 is carried out by means of an actuating device 20 which is controlled in a manner known per se by means of a measurement sensor 21 such that the engagement movement is released when a mark passes by on a blanket cylinder 18. This ensures that the printing unit 2 is always coupled to the main drive motor 9 in such a position of the cylinders 17, 18, in which a register-based cut of the print carrier web printed in the printing unit 2 takes place on the cross-cutting
  • the printing unit 1 is designed as well the printing unit 2, so that it can also be coupled to the main drive motor 9 in register.
  • FIG. 1 shows the printing press in a position in which the print carrier web 22 has been printed in the printing unit 2.
  • the printing unit 1 was set up for a new print job.
  • a second print carrier web 23 has been drawn in through the printing unit 1 and around the printing unit 2 up to a web connecting device 24.
  • the web connection device 24 as is subsequently described in detail, the still unprinted print carrier web 23 is glued to the print carrier web 22 and then the print carrier web 22 is cut off in front of the adhesive point, so that after a clutch 25 is closed between the printing unit 1 and the main drive motor 9, the end of the Print carrier web 22 can pull the print carrier web 23 through the dryer, the cooling device and the folder 7.
  • FIGS. 2 to 5 The basic function of the web connection device 24 results from FIGS. 2 to 5.
  • the printed print carrier web 22 runs between a fixed clamping jaw 26 with an elastic support 27 facing the print carrier web and a movable clamping jaw 28 with an elastic pad 29 without contact. There is thus no risk of the pressure on the print carrier web 22 being lubricated in the web connecting device 24.
  • the print carrier web 23 is now to be glued to the print carrier web 22, the movable clamping jaw 28 is guided against the fixed clamping jaw 26, as shown in FIG. 3 .
  • a support beam 30 and a pressure rail 31 are guided against the pressure carrier web 22.
  • the print carrier web 22 is then severed along a separating edge 32 of the support beam 30, for example by tearing it off.
  • the pressure rail 31 is pivoted about an axis which coincides with a beveled tip 33 of a holding beam 34 until the position shown in FIG. 4 is reached, in which the pressure rail 31 has one end of the severed print carrier web 22 in contact with Holding bar 34 holds.
  • An adhesive strip 35 is now applied to the free end of the print carrier web 22.
  • the print carrier web 23 is then pulled over the support beam 30 and angled around its kinking and separating edge 36. As a result, the print carrier web 23 can be pulled tight up to the printing unit 1.
  • the holding bar 34 is pivoted together with the pressure rail 31 about an axis aligned with its tip 33 until the print carrier web 22 with the adhesive strip 34 comes to rest on the print carrier web 23.
  • the free end of the print carrier web 23 needs to be torn off along the folding and separating edge 36 and the movable clamping jaw 28 with the support bar 30 and the pressure rail 31 are in turn lowered into the rest position shown in FIG. 2.
  • the cooling device 6 and the folding unit 7 the print carrier web 23 can be fully drawn into the printing press.
  • FIGS. 6 to 10 The specific embodiment of a web connecting device according to the invention shown in FIGS. 6 to 10 is arranged between two fixed boards 37.
  • Two guide strips 38, 39 are screwed onto each of the two boards 37.
  • a slide 40 is guided in each case in or against the direction of the arrow a by means of the guide strips 38, 39.
  • the two slides 40 are firmly connected to one another via the movable clamping jaw 28.
  • a recess 41 is also provided in each of the two slides 40.
  • One end of the support beam 30, which extends over the entire width of the print carrier web, projects into each of the two recesses 41.
  • a lower adjusting screw 42 and three lateral adjusting screws 43, 44, 45 are provided for adjusting the position of the support bar 30 relative to each slide 40.
  • an adjusting shaft 46 is provided, which is supported at both ends on a bearing block 47.
  • Each bracket 47 is connected to a second circuit board 37.
  • a support piece is fixedly fitted, into which a bolt 49 with a loosely rotatable sleeve 50 surrounding it is inserted, offset from the axis of rotation of the actuating shaft 46.
  • the sleeve 50 engages in an elongated hole in the carriage 40.
  • a limit switch 53 is also attached to one of the two boards 37 and can be actuated by means of an extension on one of the two slides 40 in its lower end position.
  • the limit switch 53 ensures that the main drive motor 9 can only run when the carriage 40 and thus the movable jaw 28 of the support beam 30 and the pressure rail 31 are in the position shown in FIG. 2, in which the print carrier web 22 is free between the Clamping jaws 26, 28 can pass through.
  • two bearing blocks 54 are screwed to the movable clamping jaw 28, each of which carries a bearing journal 55.
  • a holder 56 is rotatably mounted on each bearing pin 55.
  • the pressure rail 31 is fastened to the holders 56.
  • An actuation button 58 is also firmly connected to each holder 56 via a lever 57.
  • the clamping jaw 26 is also firmly connected to each circuit board 37.
  • the bearing blocks 59 are screwed onto the fixed clamping jaw.
  • Each bearing bracket 59 also carries a bearing pin 60.
  • a holder 61 is rotatably seated on each bearing pin 60.
  • One end of the holding beam 34 is screwed to each of the two holders 61.
  • Two levers 62 are also welded to the holding beam 34.
  • Each of the two levers 62 carries an actuating button 63.
  • the bearing journals 60 and 55 are aligned with one another, so that the holding bar 34 and the pressure rail 31 can be pivoted about the same axis
  • the pressure rail 31 In order to be able to hold the pressure rail 31 in its one end position, it is fixedly connected to a cam disk 64, against which, as shown in FIG. 10, a pressure piece 65 guided in a bore in the bearing block 54 bears under the action of a spring 66.
  • the pressing force of the spring 66 is adjustable by means of a stop 67 screwed into the bearing block 54.
  • the pressure rail 31 of the actuating button 58 is transferred in the direction of arrow c to the end position shown in FIGS. 7 to 10.
  • the pressure rail 31 deflects the end of the printed paper web and then clamps it against the holding beam 34.
  • the holding bar 34 is moved in the direction of arrow d by means of the actuating buttons 63 pivoted until the printed paper web comes to rest on the unprinted print carrier web lying on the support beam 30, as shown in broken lines in FIG. 9. Since, as can be seen from FIG. 10, the pressure rail 31 presses the printed pressure carrier web against the holding beam 34 at least with its upper end, the movement of the holding beam 34 also follows the pressure rail 31. In this case, these two parts do not make any relative movements to one another, since the bearing journals 55 and 60, around which the pressure rail 31, on the one hand, and the holding bar 34, on the other hand, are rotatably mounted, are flush with one another.
  • the pressure piece 65 holds the pressure rail 31 via the cam disk 64 and thus the unprinted print carrier web in abutment with the holding bar 34 pivoted back into the position shown in Fig. 9.
  • the operating handles 52 are pivoted against the direction of arrow b until the slide 40 has reached its lower end position. In this position, the elastic supports 27, 29 of the clamping jaws 26, 28 are lifted from each other, so that the pressure carrier web can in turn be passed freely between the clamping jaws.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Rotary Presses (AREA)

Description

Die Erfindung betrifft eine Rollenrotationsdruckmaschine mit mindestens einem Druckwerk, einer Druckträgerbahnzuführung für jedes Druckwerk und einem eine Querschneideinrichtung umfassenden Falzwerk, das über eine Kupplung mit dem Antrieb für das Druckwerk registerhaltig verbindbar ist.The invention relates to a web-fed rotary printing press with at least one printing unit, a print carrier web feed for each printing unit and a folding unit comprising a cross-cutting device, which can be connected in register with the drive for the printing unit.

Bei einer derartigen Druckmaschine kann es aus Gründen der Zugänglichkeit zum Plattenzylinder des Druckwerkes erforderlich sein, bei jeder Umrüstung für einen anderen Druckauftrag die Druckträgerbahn zu entfernen. Dies zwang bisher dazu, die Druckträgerbahn nach Beendigung der Umrüstung erneut in die gesamte Druckmaschine einzuziehen.In the case of such a printing press, it may be necessary, for reasons of accessibility to the plate cylinder of the printing unit, to remove the print carrier web each time it is converted for a different print job. So far, this has forced the print carrier web to be drawn back into the entire printing press after the conversion has been completed.

Bei Druckmaschinen, bei denen zwei oder mehr Druckwerke mit je einer eigenen Druckträgerbahnzuführung in Reihe angeordnet sind, kommt es vor, dass ein Druckauftrag mit nur einem Druckwerk erledigt werden kann. Währenddessen kann ein weiteres Druckwerk für einen anderen Druckauftrag eingerichtet werden. Auch hier war es bisher erforderlich, die in dem ersten Druckwerk bedruckte Bahn nach Beendigung des Druckes aus der Druckmaschine zu entfernen und anschliessend die im zweiten Druckwerk zu bedruckende Bahn durch die ganze Druckmaschine einzuziehen.In printing presses in which two or more printing units, each with its own print carrier web feed, are arranged in series, it can happen that a print job can be carried out with only one printing unit. In the meantime, another print engine can be set up for another print job. Here, too, it was previously necessary to remove the web printed in the first printing unit from the printing press after the printing had ended, and then to pull in the web to be printed in the second printing unit through the entire printing press.

Der Erfindung liegt die Aufgabe zugrunde, den Aufwand für das Einziehen einer Papierbahn nach einer Umrüstung für einen neuen Druckauftrag zu vermindern.The invention has for its object to reduce the effort for pulling a paper web after retrofitting for a new print job.

Erfindungsgemäss wird dies dadurch erreicht, dass zwischen dem Falzwerk und dem Druckwerk eine Bahnverbindungsvorrichtung vorgesehen ist, die

  • a) einen Auflagebalken mit einer Trennkante zum Durchtrennen einer bedruckten Druckträgerbahn und einer Abknickkante für den Anfang einer unbedruckten Druckträgerbahn,
  • b) eine Klemmvorrichtung zum Einspannen des in das Falzwerk führenden Trums der bedruckten Druckträgerbahn in Abstand von der Durchtrennstelle,
  • c) eine Haltevorrichtung zum Erfassen, Abknicken und Halten des freien Endes der bedruckten Druckträgerbahn in abgeknickter Lage und
  • d) Mittel zum Schwenken der Haltevorrichtung in der das freie Ende der bedruckten Druckträgerbahn haltenden Stellung zum Andrücken des abgeknickten freien Endes gegen die über den Auflagebalken gezogene unbedruckte Druckträgerbahn umfasst.
This is achieved according to the invention in that a web connecting device is provided between the folding unit and the printing unit
  • a) a support bar with a separating edge for cutting through a printed print carrier web and a folding edge for the start of an unprinted print carrier web,
  • b) a clamping device for clamping the strand of the printed print carrier web leading into the folding unit at a distance from the severing point,
  • c) a holding device for detecting, kinking and holding the free end of the printed print carrier web in a bent position and
  • d) comprises means for pivoting the holding device in the position holding the free end of the printed print carrier web for pressing the kinked free end against the unprinted print carrier web pulled over the support bar.

Die Erfindung schafft die Möglichkeit, die noch in der Maschine befindliche bedruckte Druckträgerbahn mit einer unbedruckten Druckträgerbahn so zu verbinden, dass ein registerhaltiger Fortdruck möglich ist.The invention creates the possibility of connecting the printed print carrier web which is still in the machine to an unprinted print carrier web in such a way that continued printing in register is possible.

Bei Anwendung der Erfindung wird also Zeit zur Umrüstung der Druckmaschine erspart. Da das sich von der Bahnverbindeeinrichtung bis zum Ausgang des Falzwerks erstreckende Ende der bedruckten Druckträgerbahn zur Einführung der unbedruckten Druckträgerbahn in das Falzwerk verwendet wird und das Einziehen bei registerhaltiger Verbindung zwischen dem Druckwerk und dem Falzwerk erfolgen kann, vermindert sich auch der Makulaturanfall.When the invention is used, time is therefore saved for converting the printing press. Since the end of the printed print carrier web that extends from the web connecting device to the exit of the folding unit is used to introduce the unprinted printing carrier web into the folding unit, and it can be pulled in with a register-correct connection between the printing unit and the folding unit, the amount of waste is also reduced.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung der Erfindung anhand der Zeichnung. Auf dieser zeigt:

  • Fig. 1 einen schematischen Schnitt durch eine Rollenrotations-Offsetdruckmaschine,
  • Fig. 2 bis 5 eine schematische Darstellung der Funktion der wesentlichen Teile der Bahnverbindungsvorrichtung jeweils in einem Längsschnitt,
  • Fig. 6 eine Teilansicht eines Ausführungsbeispiels von oben,
  • Fig. 7 einen Schnitt entlang der Linie VII-VII in Fig. 6,
  • Fig. 8 eine Teilansicht der Bahnverbindungsvorrichtung nach Fig. 6 von vorn,
  • Fig. 9 einen Teilschnitt gemäss der Linie IX-IX in Fig. 6 und
  • Fig. 10 einen Teilschnitt entlang der Linie X-X in Fig. 6.
Further features and advantages of the invention emerge from the subclaims and the description of the invention with reference to the drawing. This shows:
  • 1 shows a schematic section through a web-fed rotary offset printing press,
  • 2 to 5 is a schematic representation of the function of the essential parts of the web connecting device in each case in a longitudinal section,
  • 6 is a partial view of an embodiment from above,
  • 7 shows a section along the line VII-VII in FIG. 6,
  • 8 is a partial front view of the web connecting device according to FIG. 6,
  • Fig. 9 is a partial section along the line IX-IX in Fig. 6 and
  • 10 shows a partial section along the line XX in FIG. 6.

Die in Fig. 1 dargestellte Rollenrotations-Offsetdruckmaschine umfasst zwei Druckwerke 1, 2, denen je eine Druckträgerbahnzuführung 3, 4 zugeordnet ist. Die Maschine umfasst weiterhin einen Trockner 5, eine Kühleinrichtung 6 und ein insgesamt mit 7 bezeichnetes Falzwerk. Im Falzwerk 7 ist eine Querschneideinrichtung 8 vorgesehen, die in an sich bekannter Weise aus zwei parallelen Walzen mit Schneidmessern und Schneidnuten bestehen kann.The web-fed rotary offset printing press shown in FIG. 1 comprises two printing units 1, 2, each of which is assigned a print carrier web feed 3, 4. The machine further comprises a dryer 5, a cooling device 6 and a folding unit designated overall by 7. In the folding unit 7, a cross cutting device 8 is provided, which can consist of two parallel rollers with cutting knives and cutting grooves in a manner known per se.

Zum Antrieb der Rollenrotations-Offsetdruckmaschine während des Betriebes dient ein Hauptantriebsmotor 9 mit einer Antriebswelle 10. Von der Antriebswelle 10 wird über ein Kegelradpaar 11 und eine Stichwelle 12 der Falzapparat 7 angetrieben. Insbesondere trägt die Stichwelle 12 ein Kegelradpaar 13, mit dem die Querschneideinrichtung 8 angetrieben wird. Ein weiteres Kegelradpaar 14 mit einer nachgeschalteten Kupplung 15 treibt über eine Stichwelle 16 die Plattenzylinder 17 und Gummituchzylinder 18 des Druckwerkes 2 an. Die Zylinder 17, 18 sind ausserdem mittels eines Motors 19 antreibbar. Die Einrückbewegung der Kupplung 15 wird mittels einer Stelleinrichtung 20 durchgeführt, die mittels eines Messwertaufnehmers 21 derart in an sich bekannter Weise gesteuert ist, dass beim Vorbeilauf einer Marke auf einem Gummituchzylinder 18 die Einrückbewegung freigegeben wird. Hierdurch wird sichergestellt, dass das Druckwerk 2 stets in einer solchen Lage der Zylinder 17, 18 an den Hauptantriebsmotor 9 angekuppelt wird, in der ein registerhaltiger Schnitt der im Druckwerk 2 bedruckten Druckträgerbahn an der Querschneideinrichtung 8 erfolgt.A main drive motor 9 with a drive shaft 10 is used to drive the web-fed rotary offset printing press during operation. The folder 7 is driven by the drive shaft 10 via a bevel gear pair 11 and a stitch shaft 12. In particular, the stub shaft 12 carries a bevel gear pair 13 with which the cross-cutting device 8 is driven. Another pair of bevel gears 14 with a downstream clutch 15 drives the plate cylinders 17 and blanket cylinders 18 of the printing unit 2 via a spur shaft 16. The cylinders 17, 18 can also be driven by a motor 19. The engagement movement of the clutch 15 is carried out by means of an actuating device 20 which is controlled in a manner known per se by means of a measurement sensor 21 such that the engagement movement is released when a mark passes by on a blanket cylinder 18. This ensures that the printing unit 2 is always coupled to the main drive motor 9 in such a position of the cylinders 17, 18, in which a register-based cut of the print carrier web printed in the printing unit 2 takes place on the cross-cutting device 8.

Das Druckwerk 1 ist ebenso ausgebildet wie das Druckwerk 2, so dass es ebenfalls registerhaltig an den Hauptantriebsmotor 9 ankuppelbar ist.The printing unit 1 is designed as well the printing unit 2, so that it can also be coupled to the main drive motor 9 in register.

Fig. 1 zeigt die Druckmaschine in einer Stellung, in der die Druckträgerbahn 22 im Druckwerk 2 bedruckt worden ist. Während dieses Druckes ist das Druckwerk 1 für einen neuen Druckauftrag eingerichtet worden. Dabei ist eine zweite Druckträgerbahn 23 durch das Druckwerk 1 und um das Druckwerk 2 herum bis zu einer Bahnverbindungsvorrichtung 24 eingezogen worden. In der Bahnverbindungsvorrichtung 24 wird, wie anschliessend im einzelnen beschrieben, die noch unbedruckte Druckträgerbahn 23 an die Druckträgerbahn 22 angeklebt und anschliessend die Druckträgerbahn 22 vor der Klebstelle abgetrennt, so dass nach Schliessen einer Kupplung 25 zwischen dem Druckwerk 1 und dem Hauptantriebsmotor 9 das Ende der Druckträgerbahn 22 die Druckträgerbahn 23 durch den Trockner, die Kühleinrichtung und das Falzwerk 7 einziehen kann.1 shows the printing press in a position in which the print carrier web 22 has been printed in the printing unit 2. During this printing, the printing unit 1 was set up for a new print job. A second print carrier web 23 has been drawn in through the printing unit 1 and around the printing unit 2 up to a web connecting device 24. In the web connection device 24, as is subsequently described in detail, the still unprinted print carrier web 23 is glued to the print carrier web 22 and then the print carrier web 22 is cut off in front of the adhesive point, so that after a clutch 25 is closed between the printing unit 1 and the main drive motor 9, the end of the Print carrier web 22 can pull the print carrier web 23 through the dryer, the cooling device and the folder 7.

Die grundsätzliche Funktion der Bahnverbindungsvorrichtung 24 ergibt sich aus den Fig. 2 bis 5. In der in Fig. 2 wiedergegebenen Ruhestellung der Bahnverbindungsvorrichtung 24 läuft die bedruckte Druckträgerbahn 22 zwischen einer festen Klemmbacke 26 mit einer der Druckträgerbahn zugewandten elastischen Auflage 27 und einer beweglichen Klemmbacke 28 mit einer elastischen Auflage 29 berührungsfrei hindurch. Es besteht somit also keine Gefahr des Abschmierens des Druckes auf der Druckträgerbahn 22 in der Bahnverbindungsvorrichtung 24. Soll nun die Druckträgerbahn 23 an die Druckträgerbahn 22 angeklebt werden, so wird, wie Fig. 3 zeigt, die bewegliche Klemmbacke 28 gegen die feste Klemmbacke 26 geführt. Hierbei wird unter vernachlässigbar geringer Auslenkung der Druckträgerbahn 22 diese zwischen den elastischen Auflagen 27, 29 festgeklemmt. Zusammen mit der beweglichen Klemmbacke 28 wird ein Auflagebalken 30 und eine Andruckschiene 31 gegen die Druckträgerbahn 22 geführt. Anschliessend wird die Druckträgerbahn 22 entlang einer Trennkante 32 des Auflagebalkens 30, beispielsweise durch Abreissen, durchtrennt.The basic function of the web connection device 24 results from FIGS. 2 to 5. In the rest position of the web connection device 24 shown in FIG. 2, the printed print carrier web 22 runs between a fixed clamping jaw 26 with an elastic support 27 facing the print carrier web and a movable clamping jaw 28 with an elastic pad 29 without contact. There is thus no risk of the pressure on the print carrier web 22 being lubricated in the web connecting device 24. If the print carrier web 23 is now to be glued to the print carrier web 22, the movable clamping jaw 28 is guided against the fixed clamping jaw 26, as shown in FIG. 3 . Here, with negligible deflection of the print carrier web 22, it is clamped between the elastic supports 27, 29. Together with the movable clamping jaw 28, a support beam 30 and a pressure rail 31 are guided against the pressure carrier web 22. The print carrier web 22 is then severed along a separating edge 32 of the support beam 30, for example by tearing it off.

In einem nächsten Bearbeitungsschritt wird die Andruckschiene 31 um eine Achse geschwenkt, die mit einer angeschrägten Spitze 33 eines Haltebalkens 34 zusammenfällt, bis die in Fig. 4 wiedergegebene Lage erreicht ist, in der die Andruckschiene 31 das eine Ende der durchtrennten Druckträgerbahn 22 in Anlage am Haltebalken 34 hält. Nunmehr wird auf das freie Ende der Druckträgerbahn 22 ein Klebstreifen 35 aufgebracht. Anschliessend wird die Druckträgerbahn 23 über den Auflagebalken 30 gezogen und um dessen Abknick- und Trennkante 36 abgewinkelt. Hierdurch kann die Druckträgerbahn 23 bis zum Druckwerk 1 hin straffgezogen werden. In einem weiteren, aus Fig. 5 ersichtlichen Arbeitsschritt wird der Haltebalken 34 zusammen mit der Andruckschiene 31 um eine mit seiner Spitze 33 fluchtende Achse geschwenkt, bis die Druckträgerbahn 22 mit dem Klebstreifen 34 zur Auflage auf der Druckträgerbahn 23 kommt. Nunmehr braucht lediglich noch das freie Ende der Druckträgerbahn 23 entlang der Abknick- und Trennkante 36 abgerissen werden und die bewegliche Klemmbacke 28 mit dem Auflagebalken 30 und der Andruckschiene 31 wiederum in die aus Fig. 2 ersichtliche Ruhestellung abgesenkt werden. Jetzt kann mittels des durch den Trockner 5, die Kühleinrichtung 6 und das Falzwerk 7 laufenden Trums der Druckträgerbahn 22 die Druckträgerbahn 23 voll in die Druckmaschine eingezogen werden.In a next processing step, the pressure rail 31 is pivoted about an axis which coincides with a beveled tip 33 of a holding beam 34 until the position shown in FIG. 4 is reached, in which the pressure rail 31 has one end of the severed print carrier web 22 in contact with Holding bar 34 holds. An adhesive strip 35 is now applied to the free end of the print carrier web 22. The print carrier web 23 is then pulled over the support beam 30 and angled around its kinking and separating edge 36. As a result, the print carrier web 23 can be pulled tight up to the printing unit 1. In a further step shown in FIG. 5, the holding bar 34 is pivoted together with the pressure rail 31 about an axis aligned with its tip 33 until the print carrier web 22 with the adhesive strip 34 comes to rest on the print carrier web 23. Now only the free end of the print carrier web 23 needs to be torn off along the folding and separating edge 36 and the movable clamping jaw 28 with the support bar 30 and the pressure rail 31 are in turn lowered into the rest position shown in FIG. 2. Now, by means of the run of the print carrier web 22 running through the dryer 5, the cooling device 6 and the folding unit 7, the print carrier web 23 can be fully drawn into the printing press.

Die in den Fig. 6 bis 10 dargestellte konkrete Ausführungsform einer erfindungsgemässen Bahnverbindungsvorrichtung ist zwischen zwei festen Platinen 37 angeordnet. An jeder der beiden Platinen 37 sind je zwei Führungsleisten 38, 39 angeschraubt. An jeder der beiden Platinen 37 ist mittels der Führungsleisten 38, 39 je ein Schlitten 40 in bzw. entgegen der Richtung des Pfeiles a verschiebbar geführt. Die beiden Schlitten 40 sind über die bewegliche Klemmbacke 28 fest miteinander verbunden. In jedem der beiden Schlitten 40 ist weiterhin eine Ausnehmung 41 vorgesehen. In jede der beiden Ausnehmungen 41 ragt ein Ende des sich über die ganze Breite der Druckträgerbahn erstreckenden Auflagebalkens 30 hinein. Zur Justierung der Lage des Auflagebalkens 30 gegenüber jedem Schlitten 40 sind eine untere Stellschraube 42 sowie drei seitliche Stellschrauben 43, 44, 45 vorgesehen.The specific embodiment of a web connecting device according to the invention shown in FIGS. 6 to 10 is arranged between two fixed boards 37. Two guide strips 38, 39 are screwed onto each of the two boards 37. On each of the two boards 37, a slide 40 is guided in each case in or against the direction of the arrow a by means of the guide strips 38, 39. The two slides 40 are firmly connected to one another via the movable clamping jaw 28. A recess 41 is also provided in each of the two slides 40. One end of the support beam 30, which extends over the entire width of the print carrier web, projects into each of the two recesses 41. A lower adjusting screw 42 and three lateral adjusting screws 43, 44, 45 are provided for adjusting the position of the support bar 30 relative to each slide 40.

Zur Bewegung der Schlitten 40 der beweglichen Klemmbacke 28 und Auflagebalken 30 in bzw. entgegen der Richtung des Pfeiles a ist eine Stellwelle 46 vorgesehen, die an beiden Enden an je einem Lagerbock 47 gelagert ist. Jeder Lagerbock 47 ist mit einer zweiten Platine 37 verbunden. Auf einem Zapfen 48 an jedem der beiden Enden der Stellwelle 46 ist fest ein Tragstück aufgesetzt, in das versetzt zur Drehachse der Stellwelle 46 ein Bolzen 49 mit einer ihn umgebenden, lose drehbaren Hülse 50 eingesetzt ist. Die Hülse 50 greift in ein Langloch im Schlitten 40 ein. Mit der Stellwelle 46 sind weiterhin zwei Hebel 51 verbunden, die je einen Betätigungsgriff 52 tragen. An einer der beiden Platinen 37 ist weiterhin ein Endschalter 53 befestigt, der mittels eines Ansatzes an einem der beiden Schlitten 40 in dessen unterer Endstellung betätigbar ist. Der Endschalter 53 stellt sicher, dass der Hauptantriebsmotor 9 nur dann laufen kann, wenn die Schlitten 40 und damit die bewegliche Klemmbacke 28 der Auflagebalken 30 und die Andruckschiene 31 in der aus Fig. 2 ersichtlichen Lage stehen, in der die Druckträgerbahn 22 frei zwischen den Klemmbacken 26,28 hindurchlaufen kann.For the movement of the slide 40 of the movable jaw 28 and the support bar 30 in or against the direction of the arrow a, an adjusting shaft 46 is provided, which is supported at both ends on a bearing block 47. Each bracket 47 is connected to a second circuit board 37. On a pin 48 at each of the two ends of the actuating shaft 46, a support piece is fixedly fitted, into which a bolt 49 with a loosely rotatable sleeve 50 surrounding it is inserted, offset from the axis of rotation of the actuating shaft 46. The sleeve 50 engages in an elongated hole in the carriage 40. With the actuating shaft 46 two levers 51 are further connected, each carrying an actuating handle 52. A limit switch 53 is also attached to one of the two boards 37 and can be actuated by means of an extension on one of the two slides 40 in its lower end position. The limit switch 53 ensures that the main drive motor 9 can only run when the carriage 40 and thus the movable jaw 28 of the support beam 30 and the pressure rail 31 are in the position shown in FIG. 2, in which the print carrier web 22 is free between the Clamping jaws 26, 28 can pass through.

An der beweglichen Klemmbacke 28 sind weiterhin, wie insbesondere die Fig. 6 und 10 erkennen lassen, zwei Lagerböcke 54 angeschraubt, die je einen Lagerzapfen 55 tragen. An jedem Lagerzapfen 55 ist drehbar ein Halter 56 gelagert. An den Haltern 56 ist die Andruckschiene 31 befestigt. Mit jedem Halter 56 ist weiterhin über einen Hebel 57 ein Betätigungsknopf 58 fest verbunden. Mit jeder Platine 37 ist weiterhin fest die Klemmbacke 26 verbunden. An die feste Klemmbacke sind die Lagerböcke 59 angeschraubt. Jeder Lagerbock 59 trägt weiterhin einen Lagerzapfen 60. Auf jedem Lagerzapfen 60 sitzt drehbar ein Halter 61. An den beiden Haltern 61 ist jeweils das eine Ende des Haltebalkens 34 angeschraubt. Am Haltebalken 34 sind weiterhin zwei Hebel 62 angeschweisst. Jeder der beiden Hebel 62 trägt einen Betätigungsknopf 63. Die Lagerzapfen 60 und 55 fluchten miteinander, so dass der Haltebalken 34 und die Andruckschiene 31 um die gleiche Achse schwenkbar sind.6 and 10, two bearing blocks 54 are screwed to the movable clamping jaw 28, each of which carries a bearing journal 55. A holder 56 is rotatably mounted on each bearing pin 55. The pressure rail 31 is fastened to the holders 56. An actuation button 58 is also firmly connected to each holder 56 via a lever 57. The clamping jaw 26 is also firmly connected to each circuit board 37. The bearing blocks 59 are screwed onto the fixed clamping jaw. Each bearing bracket 59 also carries a bearing pin 60. A holder 61 is rotatably seated on each bearing pin 60. One end of the holding beam 34 is screwed to each of the two holders 61. Two levers 62 are also welded to the holding beam 34. Each of the two levers 62 carries an actuating button 63. The bearing journals 60 and 55 are aligned with one another, so that the holding bar 34 and the pressure rail 31 can be pivoted about the same axis.

Um die Andruckschiene 31 in ihrer einen Endstellung halten zu können, ist sie fest mit einer Kurvenscheibe 64 verbunden, an der, wie Fig. 10 zeigt, ein in einer Bohrung des Lagerbockes 54 verschiebbar geführtes Druckstück 65 unter der Wirkung einer Feder 66 anliegt. Die Andruckkraft der Feder 66 ist durch einen in den Lagerbock 54 eingeschraubten Anschlag 67 einstellbar.In order to be able to hold the pressure rail 31 in its one end position, it is fixedly connected to a cam disk 64, against which, as shown in FIG. 10, a pressure piece 65 guided in a bore in the bearing block 54 bears under the action of a spring 66. The pressing force of the spring 66 is adjustable by means of a stop 67 screwed into the bearing block 54.

Um eine bedruckte Druckträgerbahn 22 zwischen den elastischen Auflagen 27 und 29 der beiden Klemmbacken 26 und 28 einzuklemmen, werden die beiden Betätigungsgriffe 52 in Richtung des Pfeiles b bis in die in Fig. 7 dargestellte Endlage bewegt. Bei dieser Bewegung läuft die von der Stellwelle 46 über den Bolzen 49 mitgenommene Hülse 50 zum rechten Ende des Langloches 68 im Schlitten 40. Hierdurch wird der Schlitten 40 in die in Fig. 7 wiedergegebene obere Endlage überführt und damit die Druckträgerbahn geklemmt.In order to clamp a printed print carrier web 22 between the elastic supports 27 and 29 of the two clamping jaws 26 and 28, the two actuating handles 52 are moved in the direction of arrow b to the end position shown in FIG. 7. During this movement, the sleeve 50 entrained by the actuating shaft 46 via the bolt 49 runs to the right end of the elongated hole 68 in the carriage 40. As a result, the carriage 40 is transferred to the upper end position shown in FIG. 7 and thus the print carrier web is clamped.

Ist anschliessend die bedruckte Druckträgerbahn entlang der Trennkante 32 des Auflagebalkens 30 abgetrennt worden, so wird die Andruckschiene 31 des Betätigungsknopfes 58 in Richtung des Pfeiles c in die in den Fig. 7 bis 10 wiedergegebene Endlage überführt. Hierbei lenkt die Andruckschiene 31 das Ende der bedruckten Papierbahn um und klemmt es anschliessend gegen den Haltebalken 34.If the printed print carrier web has subsequently been cut off along the separating edge 32 of the support beam 30, the pressure rail 31 of the actuating button 58 is transferred in the direction of arrow c to the end position shown in FIGS. 7 to 10. Here, the pressure rail 31 deflects the end of the printed paper web and then clamps it against the holding beam 34.

Ist nun das Ende der bedruckten Druckträgerbahn mit dem Klebestreifen versehen worden und die unbedruckte Druckträgerbahn, wie in Fig. 4 dargestellt, abgeknickt und um die Trennkante 36 des Auflagebalkens 30 herumgezogen worden, so wird mittels der Betätigungsknöpfe 63 der Haltebalken 34 in Richtung des Pfeiles d geschwenkt, bis die bedruckte Papierbahn zur Auflage auf der auf dem Auflagebalken 30 aufliegenden unbedruckten Druckträgerbahn kommt, wie in Fig. 9 gestrichelt dargestellt ist. Da, wie aus Fig. 10 hervorgeht, die Andruckschiene 31 zumindest mit ihrem oberen Ende die bedruckte Druckträgerbahn gegen den Haltebalken 34 drückt, folgt der Bewegung des Haltebalkens 34 auch die Andruckschiene 31. Dabei führen diese beiden Teile keine Relativbewegungen zueinander aus, da die Lagerzapfen 55 und 60, um die die Andruckschiene 31 einerseits und der Haltebalken 34 andererseits drehbar gelagert sind, miteinander fluchten.If the end of the printed print carrier web has now been provided with the adhesive strip and the unprinted print carrier web, as shown in FIG. 4, has been kinked and pulled around the separating edge 36 of the support beam 30, the holding bar 34 is moved in the direction of arrow d by means of the actuating buttons 63 pivoted until the printed paper web comes to rest on the unprinted print carrier web lying on the support beam 30, as shown in broken lines in FIG. 9. Since, as can be seen from FIG. 10, the pressure rail 31 presses the printed pressure carrier web against the holding beam 34 at least with its upper end, the movement of the holding beam 34 also follows the pressure rail 31. In this case, these two parts do not make any relative movements to one another, since the bearing journals 55 and 60, around which the pressure rail 31, on the one hand, and the holding bar 34, on the other hand, are rotatably mounted, are flush with one another.

Im Augenblick des Umgreifens von den Betätigungsknöpfen 58 zu den Betätigungsknöpfen 63 hält das Druckstück 65 über die Kurvenscheibe 64 die Andruckschiene 31 und damit die unbedruckte Druckträgerbahn in Anlage am Haltebalken 34. Sobald die beiden Druckträgerbahnen miteinander verklebt sind, wird der Haltebalken 34 mittels der Betätigungsknöpfe 63 in die in Fig. 9 wiedergegebene Lage zurückgeschwenkt. Endlich werden die Betätigungsgriffe 52 entgegen der Richtung des Pfeiles b so weit geschwenkt, bis der Schieber 40 seine untere Endstellung erreicht hat. In dieser Stellung sind die elastischen Auflagen 27, 29 der Klemmbacken 26, 28 voneinander abgehoben, so dass die Druckträgerbahn wiederum frei zwischen den Klemmbacken hindurchgeführt werden kann.At the moment of reaching from the actuation buttons 58 to the actuation buttons 63, the pressure piece 65 holds the pressure rail 31 via the cam disk 64 and thus the unprinted print carrier web in abutment with the holding bar 34 pivoted back into the position shown in Fig. 9. Finally, the operating handles 52 are pivoted against the direction of arrow b until the slide 40 has reached its lower end position. In this position, the elastic supports 27, 29 of the clamping jaws 26, 28 are lifted from each other, so that the pressure carrier web can in turn be passed freely between the clamping jaws.

Claims (7)

1. Rotary web printing machine with a least one printing unit, a printing carrier web supply for each printing unit and a folding unit incorporating a cross cutting device, which folding unit can be connected in register by means of a coupling to the drive for the printing unit, characterised in that between the folding unit (7) and the printing unit (1, 2) a web connecting device (24) is provided which
a) incorporates a supporting bar (30) with a separating edge (32) for completely separating a printed printing carrier web (22) and a bending edge (36) for the beginning of an unprinted printing carrier web (23),
b) a clamping device (26, 27, 28, 29) for gripping the strip leading into the folding unit (7) of the printed printing carrier web (22) at a distance from the separating point,
c) a holding device (31, 33, 34) for gripping, bending and holding the free end of the printed printing carrier web (22) in the bent position and
d) means for swivelling the holding device (31, 33, 34) in the position that holds the free end of the printed printing carrier web (22) for pressing the bent free end against the unprinted printing carrier web (23) drawn over the supporting bar (30).
2. Rotary web printing machine according to claim 1, characterised in that the clamping device (26, 27, 28, 29) has a fixed clamping jaw (26) arranged at a distance above the printing carrier web, and a movable clamping jaw (28) arranged below the printing carrier web and which can be guided against the fixed clamping jaw (26), and that the printing carrier web (22) can be passed, without contact, between the fixed clamping jaw (26) and the movable clamping jaw (28) (Fig. 2).
3. Rotary web printing machine according to claim 1 or 2, characterised in that the holding device (31, 33, 34) contains a holding bar (34) disposed above the printing carrier web (22) and running at right angles thereto, and a crossbar (31) that can be swivelled out of a position below the printing carrier web against the holding bar.
4. Rotary web printing machine according to one of the preceding claims, characterised in that the pivot pins (55) are swivellable round the holding bar (34) and the crossbar (31) in the clamping position of the device, and are in alignment with one another.
5. Rotary web printing machine according to one of the preceding claims, characterised in that a cam plate (64) is rigidly connected to the crossbar (31), on which cam plate a pressure member (65) abuts in resilient manner to hold the crossbar (31) in the clamping position.
6. Rotary web printing machine according to one of the preceding claims, characterised in that the movable clamping jaw (28), the supporting bar (30) and the crossbar (31) are carried out by two supports (40) which are secured to plate bars (34) of the printing machine holding the web connecting device (24).
7. Rotary web printing machine according to one of the preceding claims, characterised in that the support (40) of the clamping jaw (28) can be moved by an adjusting shaft (46) mounted in bearing blocks (47) and that the adjusting shaft (46) has at the ends pins (48) on which a carrier piece is placed, into which, displaced with respect to the axis of the adjusting shaft (46), a bolt (49) and respectively a rotatable sleeve (50) surrounding this, are placed and engage in longitudinal apertures of the support (40).
EP80106793A 1979-11-22 1980-11-05 Rotary web printing machine with a web connecting device Expired EP0029528B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2947084 1979-11-22
DE19792947084 DE2947084A1 (en) 1979-11-22 1979-11-22 ROLL ROTATION PRINTING MACHINE WITH A TRAIN CONNECTING DEVICE

Publications (2)

Publication Number Publication Date
EP0029528A1 EP0029528A1 (en) 1981-06-03
EP0029528B1 true EP0029528B1 (en) 1983-04-27

Family

ID=6086623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106793A Expired EP0029528B1 (en) 1979-11-22 1980-11-05 Rotary web printing machine with a web connecting device

Country Status (4)

Country Link
EP (1) EP0029528B1 (en)
JP (1) JPS5693551A (en)
DD (1) DD154595A1 (en)
DE (2) DE2947084A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431686A1 (en) * 1984-08-29 1986-04-24 Werner J. 8901 Diedorf Kotterer Device for preventing looping which is damaging to the machine
JPH0425269U (en) * 1990-06-21 1992-02-28
DE19533112C2 (en) * 1995-09-07 2000-08-24 Mohndruck Reinhard Mohn Ohg Device for severing and gluing paper webs together
DE102019122312B4 (en) * 2019-08-20 2022-12-22 Voith Patent Gmbh web holding device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361317A1 (en) * 1973-12-08 1975-06-12 Agfa Gevaert Ag Unrolled strip joining mechanism - has adhesive tape roll with pressure roller and knife on transverse track

Also Published As

Publication number Publication date
JPS6361181B2 (en) 1988-11-28
DD154595A1 (en) 1982-04-07
EP0029528A1 (en) 1981-06-03
DE3062901D1 (en) 1983-06-01
DE2947084A1 (en) 1981-05-27
JPS5693551A (en) 1981-07-29

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