EP0812684B1 - Printing machine comprising a sheet conveyor belt - Google Patents

Printing machine comprising a sheet conveyor belt Download PDF

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Publication number
EP0812684B1
EP0812684B1 EP97107400A EP97107400A EP0812684B1 EP 0812684 B1 EP0812684 B1 EP 0812684B1 EP 97107400 A EP97107400 A EP 97107400A EP 97107400 A EP97107400 A EP 97107400A EP 0812684 B1 EP0812684 B1 EP 0812684B1
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EP
European Patent Office
Prior art keywords
belt
printing machine
carrier unit
drawer
machine according
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
EP97107400A
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German (de)
French (fr)
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EP0812684A2 (en
EP0812684A3 (en
Inventor
Martin Greive
Christian Dr. Compera
Bernd Herrmann
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP0812684A2 publication Critical patent/EP0812684A2/en
Publication of EP0812684A3 publication Critical patent/EP0812684A3/en
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Publication of EP0812684B1 publication Critical patent/EP0812684B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F21/00Devices for conveying sheets through printing apparatus or machines

Definitions

  • the invention relates to a printing press with a plurality arranged in series Printing units and an endless conveyor belt for substrates to be printed at least two rollers arranged at a distance around and past the printing units runs.
  • a printing press with a plurality arranged in series Printing units and an endless conveyor belt for substrates to be printed at least two rollers arranged at a distance around and past the printing units runs.
  • Such an arrangement with an endless sheet conveyor belt and several Color transmission devices is by DE-PS 587 513 and, for example, at Color copiers known.
  • the conveyor belt is subject to a certain amount of wear during operation and must therefore be worn Be replaced from time to time by a new conveyor belt. While this is one Color copier occurs relatively rarely, so that the associated Assembly work is less important when using a Conveyor belt in a printing press for longer runs may be very much shorter band change intervals.
  • the invention has for its object in a printing press with an endless Sheet conveyor belt to reduce downtimes due to belt changes.
  • This object is achieved according to the invention in a generic printing machine solved that the at least two rollers on a coherent belt carrier unit are stored, from which the conveyor belt can be pulled off in an untensioned state, that the printing machine has a laterally pull-out drawer, which is below the Tape carrier unit extends, and that on the press a holding device for the Tape carrier unit is attached between at least two different states is switchable, with the tape carrier unit of the Holding device is held in an operating position and being in a second Condition the tape carrier unit lies loosely on the drawer.
  • the holding device is used by the machine operator switched over, the drawer pulled out together with the ribbon carrier, the ribbon carrier removed from the drawer and the conveyor belt by hand from the belt carrier deducted.
  • the drawer can be designed inexpensively because it is in operation of the Conveyor belt is out of function.
  • the printing press has a machine frame with fixed side walls, the Side wall, on which the drawer can be pulled out, with a corresponding opening Mistake.
  • Counter pressure rollers can be integrated in the belt carrier.
  • a tensioning roller is used, which is resiliently mounted on the drawer in the preferred embodiment. After this Loosening the holding device gives the tension roller to the weight of the tape carrier automatically so that the tape carrier can sink into the drawer.
  • the belt carrier's own weight it can any device for releasing the tensioner roller can also be used for example, is operated simultaneously with the holding device or coupled thereto is.
  • a tension pulley can be used, which is mounted on the machine frame and which is lifted off the conveyor belt before the drawer is pulled out, if necessary synchronized with the actuation of the holding device.
  • An arrangement of an outside acting tensioner inside the tape carrier is also considered. To do that The conveyor belt can still be easily removed from the belt carrier Belt carrier, for example, provided with a locking device for the tensioning roller become.
  • the holding device for the tape carrier unit comprises one Number of adjustable stops on the printing press and at least two Quick releases that can be switched between at least two different positions, a first position in which they press the tape carrier unit against the stops, and a second position in which the tape carrier unit is released for loading.
  • Means the operating position of the conveyor belt is precisely defined and adjustable.
  • the quick releases are preferably formed by toggle-controlled roller levers, a roller rolls on an associated curved surface on the belt carrier unit, when the roller lever turns.
  • a roller rolls on an associated curved surface on the belt carrier unit, when the roller lever turns.
  • the printing machine shown in Fig. 1 has a machine frame with two side walls 1 and 2, wherein the first side wall 1 can be seen in Fig. 3 and the second Sidewall 2 is shown in Figs. 1 and 2.
  • An endless conveyor belt 4 runs around two rollers 5, 6, which are spaced apart are arranged perpendicular to the side walls 1, 2 of the printing press, such that the upper run of the conveyor belt 4 touches all four forme cylinders 3.
  • the two rollers 5, 6 are not attached directly to the printing press, but rather stored in side parts 7, 8 of a tape carrier 9, one of the printing press detachable unit forms.
  • the tape carrier 9, which is shown in more detail in FIGS. 4 and 5 is, the side parts 7, 8, the rollers 5, 6 and four counter-pressure rollers 10, the Press the conveyor belt 4 against the forme cylinder 3 while the printing press is operating.
  • the Counter pressure rollers 10 can be adjusted individually, as can be seen in FIG. 5.
  • the substrates or sheets to be printed are not shown by one Requests investors on the conveyor belt 4, the roller 5 or the roller 6 is driven, and by surface adhesion to the conveyor belt 4 or by the Forces in the printing nips between the forme cylinders 3 and the counter-pressure rollers 10 transported through, then to a not shown boom reach.
  • the holding elements are a left and an upper one Adjustment stop 11, 12, which are located at the left end of the side part 7 and 8, respectively resilient stop 13 at the right end of the side part 7 or 8, which is a rotatable on the Side wall 1 or 2 is mounted lever, one end of which on the side part 7 or 8th can attack and the other end by an adjustable compression spring 14th is applied, as well as a roller lever at the bottom and approximately in the middle of the Side panels 7 and 8 respectively.
  • the roller lever consists of an arm 15 which is pivotable at one end on the Side wall 1 or 2 is mounted and at the other end a roller 16 is mounted.
  • a profile part 17, which is one of the rollers 16, is fastened to the side parts 7 and 8, respectively facing curve surface 18.
  • each arm 15 In the operating position shown in FIGS. 1 to 3 of the tape carrier 9, each arm 15 is in a position in which the roller 16 against presses an elevated part of the curve surface 18 and in this way the corresponding one Side part 7 or 8 against the adjustment stops 11, 12 and the resilient stop 13 presses.
  • a toggle linkage 19 is connected, which at one end at a Shaft 20 is fixed by the side wall 1 and 2 and that is in Fig. 1 to 3 in one stretched dead center position.
  • a stable position can alternatively or can also be achieved by a schematically drawn tension spring 21 the toggle linkage 19 pulls against a stop 22 on the side wall 1 or 2.
  • the Shaft 20 extends through the entire printing press, with one end of the Shaft 20 on the outside of the printing press with a handle or the like connected is.
  • the side wall 1 has an elongated opening 23 (FIG. 3) which is larger than that Band carrier 9 is.
  • a rectangular, in essentially flat drawer 24 (FIG. 1 or FIG. 6) which is attached to telescopic rails 25, which in turn are attached perpendicular to the side walls 1, 2 in the printing press.
  • the drawer 24 is by means of the telescopic rails 25 like a drawer through the opening 23 can be pulled out of the printing press, as shown in broken lines in FIG. 6.
  • a freely rotatable tension roller 26 is pivotally mounted extends perpendicular to the side walls 1, 2 across the width of the conveyor belt 4.
  • the tensioning roller 26 is biased upwards by compression springs 27 (Fig. 1), i.e. in Direction to the conveyor belt 4.
  • the machine operator rotates the shaft 20 counterclockwise, with the roller 16 to the right on the curved surface 18th rolls off.
  • the tape carrier 9 lowers down.
  • the location of the cam surface 18 and the strength of the spring force of the resilient stop 13 to compensate for tolerances serves, are chosen so that the tape carrier 9 initially when the circuit is actuated lowers only on the right side, the counter-pressure rollers 10 and the Conveyor belt 4 are separated from the forme cylinders 3.
  • This intermediate position of the tape carrier 9 is in a depression or a step 30 in the curved surface 18 held.
  • the embodiment of the belt carrier 9 shown in FIG. 4 is with a Integrated drive motor 28 which drives the roller 5.
  • a gear 29, which is in the operating position and in the intermediate position of the tape carrier 9 with a gear on the printing press is engaged to drive any other machine parts. If the Belt carrier 9 does not have its own drive motor 28, but the roller 5 can also the gear 29 can be driven from the printing press, or it becomes another Gear provided on the roller 5, which in the intermediate position of the belt carrier 9 a drive motor is connected to the printing press.
  • the band carrier 9 lowers on four prisms 31, which are mounted in the drawer 24.
  • the spring force of the tension roller 26 is thereby Own weight of the tape carrier 9 overcome.
  • the gear 29 is on the shaft 5 out of engagement with the printing press.
  • For engaging and disengaging the Gear 29 is a relatively small change in position of the shaft 5, for example by 1 mm.
  • the prisms 31, on which the axes of the shafts 5, 6 are placed, serve to fix the position of the tape carrier in the drawer 24, which is particularly important when reassembling of the tape carrier 9 is important.
  • the drawer 24 can now together with the band carrier 9 lying thereon through the Pull opening 23 in side wall 1 out of the press.
  • the tape carrier 9 is removed from the drawer 24, and the conveyor belt 4 can easily be done by hand deducted via the rollers 5 and 6 and replaced, since the tension roller 26 on the Drawer 24 remains.
  • the tape carrier 9 is reinstalled in the reverse order.

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Handling Of Sheets (AREA)

Description

Die Erfindung betrifft eine Druckmaschine mit mehreren in Reihe angeordneten Druckwerken und einem endlosen Transportband für zu bedruckende Substrate, das um wenigstens zwei im Abstand angeordnete Walzen herum und an den Druckwerken vorbei verläuft. Eine solche Anordnung mit einem endlosen Bogentransportband und mehreren Farbübertragungseinrichtungen ist durch die DE-PS 587 513 und beispielsweise auch bei Farbkopierern bekannt.The invention relates to a printing press with a plurality arranged in series Printing units and an endless conveyor belt for substrates to be printed at least two rollers arranged at a distance around and past the printing units runs. Such an arrangement with an endless sheet conveyor belt and several Color transmission devices is by DE-PS 587 513 and, for example, at Color copiers known.

Das Transportband unterliegt im Betrieb einer gewissen Abnutzung und muß daher von Zeit zu Zeit durch ein neues Transportband ersetzt werden. Während dies bei einem Farbkopierer verhältnismäßig selten vorkommt, so daß die damit verbundenen Montagearbeiten weniger ins Gewicht fallen, ergeben sich bei Verwendung eines Transportbandes bei einer Druckmaschine für höhere Auflagen unter Umständen sehr viel kürzere Bandwechselintervalle.The conveyor belt is subject to a certain amount of wear during operation and must therefore be worn Be replaced from time to time by a new conveyor belt. While this is one Color copier occurs relatively rarely, so that the associated Assembly work is less important when using a Conveyor belt in a printing press for longer runs may be very much shorter band change intervals.

Aus der DE 42 43 486 ist es bekannt, bei einem Anlegetisch einer Druckmascbine wenigstens zwei Walzen (8,9), um die herum eine endloses Transportband (10) geführt ist, in einer bandträgereinheit (7) zu lagern, um durch Herausnahme der Bandträgereinheit (7) aus dem Anlegetisch einen einfachen Bandwechsel zu ermöglichen.From DE 42 43 486 it is known for a printing machine at a feed table at least two rollers (8, 9) around which an endless conveyor belt (10) is guided is to be stored in a tape carrier unit (7) in order to remove the tape carrier unit (7) to enable a simple belt change from the feed table.

Der Erfindung liegt die Aufgabe zugrunde, bei einer Druckmaschine mit einem endlosen Bogentransportband Stillstandszeiten auf Grund von Bandwechseln zu verringern.The invention has for its object in a printing press with an endless Sheet conveyor belt to reduce downtimes due to belt changes.

Diese Aufgabe wird bei einer gattungsgemäßen Druckmaschine erfindungsgemäß dadurch gelöst, daß die wenigstens zwei Walzen an einer zusammenhängenden Bandträgereinheit gelagert sind, von der das Transportband in einem ungespannten Zustand abziehbar ist, daß die Druckmaschine eine seitlich herausziehbare Lade aufweist, die sich unterhalb der Bandträgereinheit erstreckt, und daß an der Druckmaschine eine Haltevorrichtung für die Bandträgereinheit befestigt ist, die zwischen wenigstens zwei verschiedenen Zuständen umschaltbar ist, wobei in einem ersten Zustand die Bandträgereinheit von der Haltevorrichtung in einer Betriebsposition festgehalten wird und wobei in einem zweiten Zustand die Bandträgereinheit lose auf der Lade aufliegt.This object is achieved according to the invention in a generic printing machine solved that the at least two rollers on a coherent belt carrier unit are stored, from which the conveyor belt can be pulled off in an untensioned state, that the printing machine has a laterally pull-out drawer, which is below the Tape carrier unit extends, and that on the press a holding device for the Tape carrier unit is attached between at least two different states is switchable, with the tape carrier unit of the Holding device is held in an operating position and being in a second Condition the tape carrier unit lies loosely on the drawer.

Gemäß der Erfindung wird ein einfacher und schneller Bandwechsel ohne Einsatz von Werkzeug ermöglicht. Dazu wird die Haltevorrichtung vom Maschinenbediener umgeschaltet, die Lade zusammen mit dem Bandträger herausgezogen, der Bandträger aus der Lade herausgenommen und das Transportband von Hand vom Bandträger abgezogen. Die Lade kann kostengünstig gestaltet werden, da sie im Betrieb des Transportbandes außer Funktion ist.According to the invention, a simple and quick band change without using Tool allows. For this purpose, the holding device is used by the machine operator switched over, the drawer pulled out together with the ribbon carrier, the ribbon carrier removed from the drawer and the conveyor belt by hand from the belt carrier deducted. The drawer can be designed inexpensively because it is in operation of the Conveyor belt is out of function.

Falls die Druckmaschine ein Maschinengestell mit festen Seitenwänden aufweist, wird die Seitenwand, an der die Lade herausziehbar ist, mit einer entsprechenden Öffnung versehen.If the printing press has a machine frame with fixed side walls, the Side wall, on which the drawer can be pulled out, with a corresponding opening Mistake.

Einrichtungen zur Erzeugung von Gegendruck für die Druckwerke, beispielsweise Gegendruckwalzen, können in den Bandträger integriert werden.Devices for generating back pressure for the printing units, for example Counter pressure rollers can be integrated in the belt carrier.

Um das Transportband im Betrieb gespannt zu halten, wird eine Spannrolle verwendet, die in der bevorzugten Ausführungsform federnd an der Lade gelagert ist. Nach dem Lösen der Haltevorrichtung gibt die Spannrolle dem Eigengewicht des Bandträgers automatisch nach, so daß der Bandträger in die Lade sinken kann.To keep the conveyor belt tensioned during operation, a tensioning roller is used, which is resiliently mounted on the drawer in the preferred embodiment. After this Loosening the holding device gives the tension roller to the weight of the tape carrier automatically so that the tape carrier can sink into the drawer.

In Fällen, in denen das Eigengewicht des Bandträgers dazu nicht ausreicht, kann aber auch irgendeine Vorrichtung zum Entspannen der Spannrolle verwendet werden, die beispielsweise gleichzeitig mit der Haltevorrichtung betätigt wird bzw. daran gekoppelt ist. Ferner kann eine Spannrolle verwendet werden, die am Maschinengestell gelagert ist und die vor dem Herausziehen der Lade vom Transportband abgehoben wird, ggf. synchron mit der Betätigung der Haltevorrichtung. Eine Anordnung einer nach außen wirkenden Spannrolle im Inneren des Bandträgers kommt ebenfalls in Betracht. Um das Transportband dennoch einfach vom Bandträger abziehen zu können, kann der Bandträger beispielsweise mit einer Verriegelungsvorrichtung für die Spannrolle versehen werden.In cases where the belt carrier's own weight is not sufficient, it can any device for releasing the tensioner roller can also be used for example, is operated simultaneously with the holding device or coupled thereto is. Furthermore, a tension pulley can be used, which is mounted on the machine frame and which is lifted off the conveyor belt before the drawer is pulled out, if necessary synchronized with the actuation of the holding device. An arrangement of an outside acting tensioner inside the tape carrier is also considered. To do that The conveyor belt can still be easily removed from the belt carrier Belt carrier, for example, provided with a locking device for the tensioning roller become.

In einer Ausführungsform umfaßt die Haltevorrichtung für die Bandträgereinheit eine Anzahl von einstellbaren Anschlägen an der Druckmaschine und wenigstens zwei Schnellspanner, die zwischen wenigstens zwei verschiedenen Positionen umstellbar sind, einer ersten Position, in der sie die Bandträgereinheit gegen die Anschläge drücken, und einer zweiten Position, in der die Bandträgereinheit zur Lade hin freigegeben ist. Mittels der Anschläge ist die Betriebsposition des Transportbandes präzise definiert und einstellbar.In one embodiment, the holding device for the tape carrier unit comprises one Number of adjustable stops on the printing press and at least two Quick releases that can be switched between at least two different positions, a first position in which they press the tape carrier unit against the stops, and a second position in which the tape carrier unit is released for loading. Means the operating position of the conveyor belt is precisely defined and adjustable.

Die Schnellspanner werden vorzugsweise durch kniehebelgesteuerte Rollenhebel gebildet, wobei eine Rolle auf einer dazugehörigen Kurvenfläche an der Bandträgereinheit abrollt, wenn sich der Rollenhebel dreht. Durch geeignete Ausbildung der Kurvenfläche können stabile Zwischenstellungen des Bandträgers realisiert werden, beispielsweise um das Transportband mit verringertem Druck der Druckwerke oder drucklos durchlaufen zu lassen. Durch eine geeignete Anordnung der Kurvenfläche läßt sich erreichen, daß sich der Bandträger in den Zwischenstellungen nur auf einer Seite absenkt, wobei eine angetriebene Walze des Bandträgers an Ort und Stelle bleibt, um mit einem Antriebsrad an der Druckmaschine in Eingriff zu stehen bzw. andere Maschinenteile anzutreiben.The quick releases are preferably formed by toggle-controlled roller levers, a roller rolls on an associated curved surface on the belt carrier unit, when the roller lever turns. By suitable design of the curved surface stable intermediate positions of the tape carrier can be realized, for example around the Conveyor belt with reduced pressure of the printing units or pass through without pressure to let. With a suitable arrangement of the curved surface, it can be achieved that the band carrier lowers in the intermediate positions only on one side, one Driven roller of the tape carrier stays in place with a drive wheel to be engaged on the printing press or to drive other machine parts.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung eines Ausführungsbeispiels und aus der Zeichnung, auf die Bezug genommen wird. Darin zeigen:

Fig. 1:
einen Längsschnitt durch die Druckmaschine mit einem endlosen Bogentransportband, das sich auf einer herausnehmbaren Bandträgereinheit befindet;
Fig. 2:
eine Ansicht der in Fig. 1 verdeckten zweiten Seitenwand der Druckmaschine aus der gleichen Blickrichtung und zusammen mit einem zweiten Seitenteil der Bandträgereinheit,
Fig. 3:
eine Fig. 1 entsprechende Ansicht der ersten Seitenwand der Druckmaschine zusammen mit einem ersten Seitenteil der Bandträgereinheit;
Fig. 4:
eine Ansicht der Bandträgereinheit von oben, wobei das obere Trum des Transportbandes weggelassen ist;
Fig. 5:
einen Längsschnitt durch die Bandträgereinheit; und
Fig. 6:
eine Ansicht der Druckmaschine im Bereich der Lade von oben, wobei die Bandträgereinheit und das Transportband weggelassen sind.
Further features and advantages of the invention result from the following description of an exemplary embodiment and from the drawing, to which reference is made. In it show:
Fig. 1:
a longitudinal section through the printing press with an endless sheet conveyor belt, which is located on a removable belt carrier unit;
Fig. 2:
1 is a view of the second side wall of the printing machine, which is hidden in FIG. 1, from the same viewing direction and together with a second side part of the tape carrier unit,
Fig. 3:
a view corresponding to Figure 1 of the first side wall of the printing press together with a first side part of the tape carrier unit;
Fig. 4:
a view of the belt carrier unit from above, the upper strand of the conveyor belt is omitted;
Fig. 5:
a longitudinal section through the tape carrier unit; and
Fig. 6:
a view of the printing machine in the area of the drawer from above, wherein the tape carrier unit and the conveyor belt are omitted.

Die in Fig. 1 gezeigte Druckmaschine weist ein Maschinengestell mit zwei Seitenwänden 1 und 2 auf, wobei die erste Seitenwand 1 in Fig. 3 zu sehen ist und die zweite Seitenwand 2 in Fig. 1 und 2 gezeigt ist.The printing machine shown in Fig. 1 has a machine frame with two side walls 1 and 2, wherein the first side wall 1 can be seen in Fig. 3 and the second Sidewall 2 is shown in Figs. 1 and 2.

Zwischen den Seitenwänden 1, 2 sind vier Druckwerke in einer geraden, beinahe waagerechten Reihe angeordnet, von denen in Fig. 1 schematisch vier Formzylinder 3 eingezeichnet sind, deren Achsen senkrecht zu den Seitenwänden 1, 2 verlaufen.Between the side walls 1, 2 are four printing units in a straight line, almost arranged horizontally, of which four form cylinders 3 are shown schematically in FIG. 1 are drawn, the axes of which are perpendicular to the side walls 1, 2.

Ein endloses Transportband 4 läuft um zwei Walzen 5, 6 um, die im Abstand zueinander senkrecht zu den Seitenwänden 1, 2 der Druckmaschine angeordnet sind, derart, daß das obere Trum des Transportbandes 4 alle vier Formzylinder 3 berührt.An endless conveyor belt 4 runs around two rollers 5, 6, which are spaced apart are arranged perpendicular to the side walls 1, 2 of the printing press, such that the upper run of the conveyor belt 4 touches all four forme cylinders 3.

Die beiden Walzen 5, 6 sind nicht unmittelbar an der Druckcmaschine angebracht, sondern in Seitenteilen 7, 8 eines Bandträgers 9 gelagert, der eine von der Druckmaschine abnehmbare Einheit bildet. Der Bandträger 9, der in Fig. 4 und 5 detaillierter dargestellt ist, umfaßt die Seitenteile 7, 8, die Walzen 5, 6 und vier Gegendruckwalzen 10, die das Transportband 4 im Betrieb der Druckmaschine gegen die Formzylinder 3 drücken. Die Gegendruckwalzen 10 sind einzeln einstellbar, wie in Fig. 5 zu erkennen ist.The two rollers 5, 6 are not attached directly to the printing press, but rather stored in side parts 7, 8 of a tape carrier 9, one of the printing press detachable unit forms. The tape carrier 9, which is shown in more detail in FIGS. 4 and 5 is, the side parts 7, 8, the rollers 5, 6 and four counter-pressure rollers 10, the Press the conveyor belt 4 against the forme cylinder 3 while the printing press is operating. The Counter pressure rollers 10 can be adjusted individually, as can be seen in FIG. 5.

Die zu bedruckenden Substrate oder Bogen werden von einem nicht eingezeichneten Anleger auf das Transportband 4 befordert, das über die Walze 5 oder die Walze 6 angetrieben wird, und durch Oberflächenhaftung am Transportband 4 bzw. durch die Kräfte in den Druckspalten zwischen den Formzylindern 3 und den Gegendruckwalzen 10 hindurch transportiert, um anschließend auf einen nicht eingezeichneten Ausleger zu gelangen.The substrates or sheets to be printed are not shown by one Requests investors on the conveyor belt 4, the roller 5 or the roller 6 is driven, and by surface adhesion to the conveyor belt 4 or by the Forces in the printing nips between the forme cylinders 3 and the counter-pressure rollers 10 transported through, then to a not shown boom reach.

Um den Bandträger in der Druckmaschine festzuhalten, sind an jeder Seitenwand 1, 2 der Druckmaschine mehrere Halteelemente angebracht, die am Umfang der Seitenteile 7, 8 des Bandträgers 9 angeordnet sind, wenn sich dieser in der Druckmaschine befindet. Wie in Fig. 1 bis 3 gezeigt, sind die Halteelemente jeweils ein linker und ein oberer Verstellanschlag 11, 12, die sich am linken Ende des Seitenteils 7 bzw. 8 befinden, ein federnder Anschlag 13 am rechten Ende des Seitenteils 7 bzw. 8, der ein drehbar an der Seitenwand 1 bzw. 2 gelagerter Hebel ist, dessen eines Ende an dem Seitenteil 7 bzw. 8 angreifen kann und dessen anderes Ende durch eine einstellbare Druckfeder 14 beaufschlagt wird, sowie ein Rollenhebel an der Unterseite und ungefähr in der Mitte des Seitenteils 7 bzw. 8.In order to hold the tape carrier in the printing press, 1, 2 are on each side wall Printing machine attached several holding elements on the circumference of the side parts 7, 8th of the tape carrier 9 are arranged when it is in the printing press. How 1 to 3, the holding elements are a left and an upper one Adjustment stop 11, 12, which are located at the left end of the side part 7 and 8, respectively resilient stop 13 at the right end of the side part 7 or 8, which is a rotatable on the Side wall 1 or 2 is mounted lever, one end of which on the side part 7 or 8th can attack and the other end by an adjustable compression spring 14th is applied, as well as a roller lever at the bottom and approximately in the middle of the Side panels 7 and 8 respectively.

Der Rollenhebel besteht aus einem Arm 15, der an einem Ende schwenkbar an der Seitenwand 1 bzw. 2 gelagert ist und an dessen anderem Ende eine Rolle 16 gelagert ist. An den Seitenteilen 7 bzw. 8 ist jeweils ein Profilteil 17 befestigt, das eine der Rolle 16 zugewandte Kurvenfläche 18 aufweist. In der in Fig. 1 bis 3 gezeigten Betriebsstellung des Bandträgers 9 befindet sich jeder Arm 15 in einer Stellung, in der die Rolle 16 gegen einen erhöhten Teil der Kurvenfläche 18 drückt und auf diese Weise das entsprechende Seitenteil 7 bzw. 8 gegen die Verstellanschläge 11, 12 und den federnden Anschlag 13 drückt. The roller lever consists of an arm 15 which is pivotable at one end on the Side wall 1 or 2 is mounted and at the other end a roller 16 is mounted. A profile part 17, which is one of the rollers 16, is fastened to the side parts 7 and 8, respectively facing curve surface 18. In the operating position shown in FIGS. 1 to 3 of the tape carrier 9, each arm 15 is in a position in which the roller 16 against presses an elevated part of the curve surface 18 and in this way the corresponding one Side part 7 or 8 against the adjustment stops 11, 12 and the resilient stop 13 presses.

Mit jedem Arm 15 ist ein Kniehebelgestänge 19 verbunden, das an einem Ende an einer Welle 20 durch die Seitenwand 1 bzw. 2 befestigt ist und das sich in Fig. 1 bis 3 in einer gestreckten Totpunktstellung befindet. Eine solche stabile Stellung kann alternativ oder zusätzlich auch durch eine schematisch eingezeichnete Zugfeder 21 erreicht werden, die das Kniehebelgestänge 19 gegen einen Anschlag 22 an der Seitenwand 1 bzw. 2 zieht. Die Welle 20 erstreckt sich durch die gesamte Druckmaschine hindurch, wobei ein Ende der Welle 20 auf der Außenseite der Druckmaschine mit einem Handgriff oder dergleichen verbunden ist.With each arm 15 a toggle linkage 19 is connected, which at one end at a Shaft 20 is fixed by the side wall 1 and 2 and that is in Fig. 1 to 3 in one stretched dead center position. Such a stable position can alternatively or can also be achieved by a schematically drawn tension spring 21 the toggle linkage 19 pulls against a stop 22 on the side wall 1 or 2. The Shaft 20 extends through the entire printing press, with one end of the Shaft 20 on the outside of the printing press with a handle or the like connected is.

Die Seitenwand 1 weist eine langgestreckte Öffnung 23 (Fig. 3) auf, die größer als der Bandträger 9 ist. In einem unteren Bereich der Öffnung 23 bzw. unterhalb des in der Druckmaschine eingebauten Bandträgers 9 befindet sich eine rechteckige, im wesentlichen flache Lade 24 (Fig. 1 bzw. Fig. 6), die an Teleskopschienen 25 befestigt ist, die wiederum senkrecht zu den Seitenwänden 1, 2 in der Druckmaschine befestigt sind. Die Lade 24 ist mit Hilfe der Teleskopschienen 25 wie eine Schublade durch die Öffnung 23 aus der Druckmaschine herausziehbar, wie in Fig. 6 gestrichelt dargestellt ist.The side wall 1 has an elongated opening 23 (FIG. 3) which is larger than that Band carrier 9 is. In a lower region of the opening 23 or below that in the Printing press built-in tape carrier 9 is a rectangular, in essentially flat drawer 24 (FIG. 1 or FIG. 6) which is attached to telescopic rails 25, which in turn are attached perpendicular to the side walls 1, 2 in the printing press. The drawer 24 is by means of the telescopic rails 25 like a drawer through the opening 23 can be pulled out of the printing press, as shown in broken lines in FIG. 6.

Im Innerern der Lade 24 ist eine frei drehbare Spannrolle 26 schwenkbar gelagert, die sich senkrecht zu den Seitenwänden 1, 2 quer über die Breite des Transportbandes 4 erstreckt. Die Spannrolle 26 wird durch Druckfedern 27 (Fig. 1) nach oben vorgespannt, d.h. in Richtung auf das Transportband 4.In the interior of the drawer 24, a freely rotatable tension roller 26 is pivotally mounted extends perpendicular to the side walls 1, 2 across the width of the conveyor belt 4. The tensioning roller 26 is biased upwards by compression springs 27 (Fig. 1), i.e. in Direction to the conveyor belt 4.

Soll das Transportband 4 gewechselt werden, so dreht der Maschinenbediener die Welle 20 im Gegenuhrzeigersinn, wobei die Rolle 16 nach rechts auf der Kurvenfläche 18 abrollt. Dabei senkt sich der Bandträger 9 nach unten. Die Lage der Kurvenfläche 18 und die Stärke der Federkraft des federnden Anschlags 13, der zum Ausgleich von Toleranzen dient, sind so gewählt, daß sich der Bandträger 9 bei Betätigung der Schaltung zunächst nur auf der rechten Seite absenkt, wobei die Gegendruckwalzen 10 bzw. das Transportband 4 von den Formzylindern 3 getrennt werden. If the conveyor belt 4 is to be changed, the machine operator rotates the shaft 20 counterclockwise, with the roller 16 to the right on the curved surface 18th rolls off. The tape carrier 9 lowers down. The location of the cam surface 18 and the strength of the spring force of the resilient stop 13 to compensate for tolerances serves, are chosen so that the tape carrier 9 initially when the circuit is actuated lowers only on the right side, the counter-pressure rollers 10 and the Conveyor belt 4 are separated from the forme cylinders 3.

Diese Zwischenstellung des Bandträgers 9 wird durch eine Senke oder eine Stufe 30 in der Kurvenfläche 18 gehalten.This intermediate position of the tape carrier 9 is in a depression or a step 30 in the curved surface 18 held.

Da die Lage der linken Walze 5 in der Zwischenstellung des Bandträgers 9 unverändert bleibt, kann die Walze 5 mit Antriebs- und/oder Abtriebselementen an der Druckmaschine in Eingriff bleiben, so daß die Maschine drucklos drehen kann, d.h. ohne Druck zwischen den Formzylindern 3 und dem Transportband 4 bzw. den Gegendruckwalzen 10. Die in Fig. 4 gezeigte Ausführung des Bandträgers 9 ist mit einem integrierten Antriebsmotor 28 ausgestattet, der die Walze 5 antreibt. Am anderen Ende der Walze 5 kann beispielsweise ein Zahnrad 29 befestigt sein, das in der Betriebsstellung und in der Zwischenstellung des Bandträgers 9 mit einem Zahnrad an der Druckmaschine in Eingriff steht, um irgendwelche weiteren Maschinenteile anzutreiben. Falls der Bandträger 9 keinen eigenen Antriebsmotor 28 aufweist, kann die Walze 5 aber auch über das Zahnrad 29 von der Druckmaschine aus angetrieben werden, oder es wird ein weiteres Zahnrad auf der Walze 5 vorgesehen, das in der Zwischenstellung des Bandträgers 9 mit einem Antriebsmotor an der Druckmaschine verbunden ist.Since the position of the left roller 5 in the intermediate position of the belt carrier 9 unchanged remains, the roller 5 with drive and / or output elements on the Keep the press engaged so that the press can rotate without pressure, i.e. without Pressure between the forme cylinders 3 and the conveyor belt 4 or Counter-pressure rollers 10. The embodiment of the belt carrier 9 shown in FIG. 4 is with a Integrated drive motor 28 which drives the roller 5. At the other end of the Roller 5 can be attached, for example, a gear 29, which is in the operating position and in the intermediate position of the tape carrier 9 with a gear on the printing press is engaged to drive any other machine parts. If the Belt carrier 9 does not have its own drive motor 28, but the roller 5 can also the gear 29 can be driven from the printing press, or it becomes another Gear provided on the roller 5, which in the intermediate position of the belt carrier 9 a drive motor is connected to the printing press.

Dreht man die Schaltung weiter, so senkt sich der Bandträger 9 auf vier Prismen 31 ab, die in der Lade 24 angebracht sind. Die Federkraft der Spannrolle 26 wird dabei durch das Eigengewicht des Bandträgers 9 überwunden. In dieser Stellung ist das Zahnrad 29 auf der Welle 5 außer Eingriff mit der Druckmaschine. Zum Ein- und Ausrücken des Zahnrades 29 genügt eine relativ geringe Lageveränderung der Welle 5, beispielsweise um 1 mm. Die Prismen 31, auf denen die Achsen der Wellen 5, 6 abgelegt werden, dienen zur Lagefixierung des Bandträgers in der Lade 24, was insbesondere beim Wiedereinbau des Bandträgers 9 von Bedeutung ist.If the circuit is rotated further, the band carrier 9 lowers on four prisms 31, which are mounted in the drawer 24. The spring force of the tension roller 26 is thereby Own weight of the tape carrier 9 overcome. In this position, the gear 29 is on the shaft 5 out of engagement with the printing press. For engaging and disengaging the Gear 29 is a relatively small change in position of the shaft 5, for example by 1 mm. The prisms 31, on which the axes of the shafts 5, 6 are placed, serve to fix the position of the tape carrier in the drawer 24, which is particularly important when reassembling of the tape carrier 9 is important.

Die Lade 24 läßt sich nun zusammen mit dem darauf liegenden Bandträger 9 durch die Öffnung 23 in der Seitenwand 1 aus der Druckmaschine herausziehen. Der Bandträger 9 wird aus der Lade 24 herausgenommen, und das Transportband 4 kann einfach von Hand über die Walzen 5 und 6 abgezogen und ausgetauscht werden, da die Spannrolle 26 an der Lade 24 bleibt. Der Wiedereinbau des Bandträgers 9 erfolgt in umgekehrter Reihenfolge. The drawer 24 can now together with the band carrier 9 lying thereon through the Pull opening 23 in side wall 1 out of the press. The tape carrier 9 is removed from the drawer 24, and the conveyor belt 4 can easily be done by hand deducted via the rollers 5 and 6 and replaced, since the tension roller 26 on the Drawer 24 remains. The tape carrier 9 is reinstalled in the reverse order.

BezugszeichenlisteReference list

11
erste Seitenwandfirst side wall
22nd
zweite Seitenwandsecond side wall
33rd
FormzylinderForme cylinder
44th
TransportbandConveyor belt
5, 65, 6
WalzenRollers
7, 87, 8
SeitenteileSide panels
99
BandträgerTape carrier
1010th
GegendruckwalzenCounter pressure rollers
11, 1211, 12
VerstellanschlägeAdjustment stops
1313
federnder Anschlagspring stop
1414
einstellbare Druckfederadjustable compression spring
1515
Armpoor
1616
Rollerole
1717th
ProfilteilProfile part
1818th
KurvenflächeCurved surface
1919th
KniehebelgestängeToggle linkage
2020th
Wellewave
2121
ZugfederTension spring
2222
Anschlagattack
2323
Öffnungopening
2424th
LadeLoading
2525th
TeleskopschienenTelescopic rails
2626
SpannrolleIdler pulley
2727
DruckfedernCompression springs
2828
AntriebsmotorDrive motor
2929
Zahnradgear
3030th
Stufestep
3131
PrismenPrisms

Claims (7)

  1. Printing machine having a plurality of printing units which are arranged in a row, and having an endless transporting belt which is intended for substrates which are to be printed and runs around at least two spaced-apart rollers and past the printing units, characterized in that the at least two rollers (5, 6) are mounted on a cohesive belt-carrier unit (9), from which it is possible to draw off the transporting belt (4) in a non-tensioned state, in that the printing machine has a drawer (24) which can be drawn out laterally and extends beneath the belt-carrier unit (9), and in that a retaining arrangement (11, 12, 13, 15, 16) for the belt-carrier unit (9) is fastened on the printing machine, it being possible for said retaining arrangement to be switched over between at least two different states, it being the case that, in a first state, the belt-carrier unit is secured in an operating position by the retaining arrangement, and it being the case that, in a second state, the belt-carrier unit (9) rests loosely on the drawer (24).
  2. Printing machine according to Claim 1, characterized in that a side wall (1) of the printing machine has an opening (23) through which it is possible to draw the drawer (24), together with the belt-carrier unit (9), out of the printing machine.
  3. Printing machine according to Claim 1 or 2, characterized in that a resiliently prestressed tensioning roller (26) for tensioning the transporting belt (4) is provided on the drawer (24).
  4. Printing machine according to one of the preceding claims, characterized in that the retaining arrangement for the belt-carrier unit (9) comprises a number of stops (11, 12, 13) and at least two quick-action tensioners (15, 16, 19, 20, 21), it being the case that the quick-action tensioners can be changed over between at least two different positions, that is to say a first position, in which it forces the belt-carrier unit against the stops (11, 12, 13), and a second position, in which the belt-carrier unit is released towards the drawer (24).
  5. Printing machine according to Claim 4, characterized in that each quick-action tensioner has an arm (15) which is mounted rotatably on the printing machine at one end and has a roller (16) mounted rotatably at its other end, said roller rolling on an associated curved surface (18) on the belt-carrier unit (9) when the arm (15) is rotated.
  6. Printing machine according to one of the preceding claims, characterized in that, between the first and the second states, the retaining arrangement has at least one further switching state, in which the belt-carrier unit (9) is not located in its operating position but is still secured at least partially on the printing machine.
  7. Printing machine according to Claims 5 and 6, characterized in that the at least one further switching state of the retaining arrangement is maintained with the aid of depressions or steps (30) in the curved surfaces (18) on the belt-carrier unit (9).
EP97107400A 1996-06-13 1997-05-05 Printing machine comprising a sheet conveyor belt Expired - Lifetime EP0812684B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19623563 1996-06-13
DE19623563A DE19623563C1 (en) 1996-06-13 1996-06-13 Printer with printing units and continuous conveyor belt

Publications (3)

Publication Number Publication Date
EP0812684A2 EP0812684A2 (en) 1997-12-17
EP0812684A3 EP0812684A3 (en) 1998-06-10
EP0812684B1 true EP0812684B1 (en) 1999-10-27

Family

ID=7796826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107400A Expired - Lifetime EP0812684B1 (en) 1996-06-13 1997-05-05 Printing machine comprising a sheet conveyor belt

Country Status (4)

Country Link
US (1) US5915300A (en)
EP (1) EP0812684B1 (en)
JP (1) JPH1059576A (en)
DE (2) DE19623563C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040034686A1 (en) * 2000-02-22 2004-02-19 David Guthrie System and method for delivering targeted data to a subscriber base via a computer network
DE10235800B4 (en) * 2002-08-05 2004-10-21 OCé PRINTING SYSTEMS GMBH Arrangement for transporting a record carrier through a transfer printing arrangement of an electrographic printing or copying device
DE10236467B4 (en) * 2002-08-08 2004-12-09 OCé PRINTING SYSTEMS GMBH Arrangement and method for introducing an assembly into an electrographic printing or copying device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE587513C (en) * 1933-01-13 1933-11-04 Georg Boettinger Rubber roller printing machine for single and multi-colored printing of sheets of different thicknesses
US3664261A (en) * 1968-06-17 1972-05-23 Harold P Dahlgren Straight feed press
US3785287A (en) * 1968-06-17 1974-01-15 H Dahlgren Sheet interrupter
US4183296A (en) * 1973-07-05 1980-01-15 Heidelberger Druckmaschinen Aktiengesellschaft Drive system for sheet-fed rotary printing presses with tandem-mounted printing units
US4081723A (en) * 1975-05-02 1978-03-28 Veb Polygraph Leipzog Kombinat Fur Polygraphische Maschinen Und Ausrustungen Printing machine
NL7801102A (en) * 1978-01-31 1979-08-02 Stork Brabant Bv DEVICE FOR INTERMITTIVE PRINTING.
DE3312128C2 (en) * 1983-04-02 1986-04-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device on printing machines with a device for varnishing printed sheets
AT381066B (en) * 1983-10-06 1986-08-25 Zimmer Johannes DEVICE FOR PRINTING GOODS BY CYLINDER STENCILS
US4625639A (en) * 1986-09-12 1986-12-02 Tsai Chien F Continuous, multi-chromatic and multi-productive press
DE4004351C2 (en) * 1990-02-13 1996-05-23 Heidelberger Druckmasch Ag Feed table of a sheet printing machine
JPH04148962A (en) * 1990-10-12 1992-05-21 Canon Inc Image recording apparatus
DE4243486C1 (en) * 1992-12-22 1994-04-07 Heidelberger Druckmasch Ag Setting table for sheet-fed printing press - has preasembled unit of frame with rollers and belt, to move sheets
IT1273544B (en) * 1995-04-12 1997-07-08 Bielloni Castello S P A PRINTING MACHINE WITH DEVICE FOR QUICK REPLACEMENT OF THE CYLINDER SHIRTS OF THE INKING UNITS

Also Published As

Publication number Publication date
DE59700611D1 (en) 1999-12-02
JPH1059576A (en) 1998-03-03
EP0812684A2 (en) 1997-12-17
US5915300A (en) 1999-06-29
DE19623563C1 (en) 1997-10-09
EP0812684A3 (en) 1998-06-10

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