EP0170111A2 - Transfer drum for sheet-fed printing machines, in particular for cartoning machines - Google Patents

Transfer drum for sheet-fed printing machines, in particular for cartoning machines Download PDF

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Publication number
EP0170111A2
EP0170111A2 EP85108427A EP85108427A EP0170111A2 EP 0170111 A2 EP0170111 A2 EP 0170111A2 EP 85108427 A EP85108427 A EP 85108427A EP 85108427 A EP85108427 A EP 85108427A EP 0170111 A2 EP0170111 A2 EP 0170111A2
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EP
European Patent Office
Prior art keywords
gripper
adjusting
transfer drum
drum according
pad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85108427A
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German (de)
French (fr)
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EP0170111B1 (en
EP0170111A3 (en
Inventor
Willi Jeschke
Willi Becker
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT85108427T priority Critical patent/ATE57655T1/en
Publication of EP0170111A2 publication Critical patent/EP0170111A2/en
Publication of EP0170111A3 publication Critical patent/EP0170111A3/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
    • B41F21/10Combinations of transfer drums and grippers

Definitions

  • the invention relates to a transfer drum for sheet-fed printing machines, in particular for board machines, with at least two gripper bridges, which can be adjusted to different paper thicknesses.
  • a device for raising and lowering the gripper pad of a gripper bridge of a sheet-guiding cylinder is known.
  • the adjustment of the gripper pad to the thickness of the paper to be processed is carried out with an adjusting rod which is arranged in the axial direction of the cylinder against spring force by means of a screw and is arranged directly under a gripper pad extending over the entire cylinder length. Since the contact surfaces of the gripper pad and adjusting rods run in the opposite direction in the longitudinal direction of the cylinder, a displacement of the adjusting rod causes the radial height shift of the gripper pad.
  • the invention is therefore based on the object, in the case of transfer drums of the type mentioned, to adjust the gripper supports of all gripper bridges of a transfer drum without, however, reducing the possibility of individual adjustment of at least some groups of individual gripper supports to one another.
  • a common adjustment of all gripper supports of a transfer drum via a single central adjustment device shortens the set-up time and enables simple handling.
  • a transfer drum with several gripper bridges that could be adjusted individually would have to be dotted into the individual positions in which each gripper bridge would be accessible. This further point alone would be very time consuming.
  • Same height of all single gripper pads, i.e. all contact surfaces are on one level, and there is no play in the adjustment means at any height setting. Minor manufacturing and assembly inaccuracies can be taken into account through the adjustment options provided, so that, despite several gripper bridges on a transfer drum, a good, uniform register is guaranteed for all prints of a print run.
  • several transfer drums according to the invention are provided in a printing press, they can be installed in such a way that the adjusting devices of all transfer drums are accessible in a certain position of all cylinders.
  • the transfer drum 1 takes over a printed sheet from the printing cylinder 2 of the preceding printing unit and transfers it to the printing cylinder 3 of the subsequent printing unit.
  • the transfer drum 1 is provided with a diameter which is three times as large as that of the printing unit cylinder, not shown.
  • the diameter ratio of the pressure cylinders 2 and 3 to the transfer drum 1 is 2 to 3.
  • the transfer drum 1 has three sheet-shaped support surfaces 4.
  • a gripper bridge 5 is provided at the beginning of each arch support surface 4. These gripper bridges 5 are thus distributed symmetrically on the circumference of the transfer drum 1. They are attached to the drum body 6.
  • the grippers 7 of the gripper bridge 5 act together with a continuous gripper support 8, on which a single gripper support 32 - also called support blocks - is provided for each gripper 7.
  • the gripper pad 8 is attached to the gripper bridge bracket 9 so that it can be adjusted in the radial direction by means of screws 10.
  • the gripper pad 8 is connected in an articulated manner to an adjusting disc 12 via a link 11.
  • the articulation of the link 11 on the adjusting disc 12 is such that the gripper pad 8 can be displaced in the radial direction by means of the toggle lever principle by rotating the adjusting disc 12.
  • the handlebar 11 is provided with adjusting means 13, which allow a change in length of the handlebar 11 and thus an individual adjustment of the gripper pad.
  • the links 11 engage at the front end of the gripper pad 8. Accordingly, an adjusting disk 12 is provided on each end of the transfer drum 1 on a shaft shoulder 14. The links 11 are thus between the machine side wall 15 and the drum front wall 16. All joints must of course be made free of play.
  • a central adjusting device 17 is provided in an easily accessible manner on one of the three gripper bridges 5. It consists of a hexagon screw 18 with a scale 19 and a screw 20 which is attached to the lower free end of the hexagon screw 18.
  • the worm wheel 21 cooperating with the worm 20 is located on an adjusting shaft 22 which is rotatably mounted in the end walls 16 of the transfer drum 1.
  • an adjusting pinion 23 is fastened, which engages in a toothed ring section 24, which is provided on the circumference of the adjusting disks 12.
  • each of the three gripper pads 8 can be adjusted simultaneously by a certain amount via the worm drive 20, 21, actuating shaft 22, actuating pinion 23, actuating disk 12 and link 11.
  • the set height can be read on the scale 19. Due to the release of play and the individual adjustment possibility of each gripper support 8, all three gripper supports 8 are simultaneously raised or lowered precisely by the same amount. In addition, the gripper pads 8 are linearly adjusted.
  • FIG. 3 shows a transfer drum 1 with only two gripper bridges 5. This is because the transfer drum 1 has twice the diameter of the adjacent pressure cylinders 2 and 3.
  • the two gripper bridges 5 are diametrically opposite. They are each arranged at the beginning of the arch wing 4.
  • the gripper pad 8 as can be seen in particular from FIG. 4, is designed as a resilient clamping beam. It has a longitudinal opening 25 which leaves only narrow webs 26 at the end of the gripper support 8.
  • the opening 25 divides the gripper support 8 in its longitudinal direction into a resilient clamping rail 27 and a rigid gripper support carrier 28. In the central region, the clamping rail 27 is fastened to the drum body 6 by means of screws 29.
  • the entire gripper pad 8 is thus connected to the drum body 6 exclusively via the screws 29.
  • two adjusting screws 30 are screwed into threaded bores in the clamping rail 27.
  • the respective lower end 31 of these adjusting screws 30 is supported on an adjusting cam 33.
  • This is attached to an adjusting disc 12, which in turn is rotatably mounted on a shaft shoulder 14 between the drum end wall 16 and the machine side wall 15.
  • the two adjusting disks 12 are connected to one another in a rotationally fixed and stable manner via cross members 34.
  • the central adjusting device 17 is fastened to one of the two end walls 16 of the drum body 6. It has a bearing block 35 in which an adjusting screw 37 is mounted by means of an adjusting screw 36. This is in engagement with a ring gear 38, which is provided on the associated adjusting disc 12 and corresponds to its design according to a worm wheel.
  • both adjusting disks 12 are rotated clockwise or counter-clockwise via worm 37 and worm gear ring gear 38. Accordingly, the cams 33, which are fastened on the circumference of the adjusting disks 12, are rotated. Because of the pitch of these cams 33, which can follow an Archimedean spiral, for example, the adjusting screws 30 are moved radially upwards or downwards. Correspondingly, the tensioning rail 27 of the gripper support 8 bends. The rigid gripper support support 28 remains practically unaffected by this slight bending process, only moves a little vertically upwards or downwards. This bracing process thus causes the height adjustment of the gripper supports 8 of both gripper bridges 5. Since the adjusting screws 30 are also individually adjustable, the gripper bridge halves can be adjusted in such a way that the gripper support 8 runs linearly. In addition, all adjusting devices can be set or installed without play.
  • the diameter ratio of the transfer drum 1 to the adjacent pressure cylinders 39 and 40 is four to two, i.e. the central transfer drum 1 has four gripper bridges 5 which are distributed symmetrically on the circumference.
  • the adjacent pressure cylinders 39 and 40 have two gripper bridges corresponding to the diameter ratio, which are diametrically opposed, but are not shown in FIG. 5.
  • the gripper pad 8 of these gripper bridges 5 is pivotally suspended around the gripper shaft 41 of the gripper 7.
  • a double lever 43 is cast on, which receives the bearing for the gripper shaft 41, and the free end of which rests against compression springs 42 which are supported on the gripper bracket console 9.
  • the compression springs 42 press the gripper support 8 counterclockwise around the gripper shaft 41, so that the gripper support 8 inevitably rests against the free end of an adjusting screw 30.
  • a plurality of adjusting screws 30 are provided, but at least in each end region of the gripper support 8. These are screwed into a threaded bore of a hollow shaft 45.
  • the hollow shaft 45 is rotatably supported in the outer wall 46 of the drum body 6. At the lower free end of this hollow shaft 45, it is designed as a bevel gear 47, which is in engagement with a further bevel gear 48, which is fastened on the actuating shaft 22.
  • the adjusting screw 30 is prevented from rotating by a tensioning tab 57 provided above the hollow shaft 45 in connection with the locking pin 58. The clamping tab 57 is tightened after the basic adjustment of the adjusting screws 30.
  • each gripper bridge 5 is assigned an actuating shaft 22, the actuating pinion 23 of which is positively engaged with the actuating disk 12.
  • Only one adjusting disk 12 is provided for adjusting all four adjusting shafts 22. It is again rotatably arranged on the shaft shoulder 4 of the drum body 6 between the end wall 16 and the machine side wall 15.
  • the central adjusting device is assigned to each of the four adjusting shafts 22, specifically the one free end of each of the four adjusting shafts 22, namely at the end to which the adjusting pinion 23 is attached, is designed as an adjusting hexagon 36.
  • all four gripper pads 8 are set higher or lower by exactly the same distance via adjusting pinion 23, adjusting disk 12, adjusting shafts 22, bevel gear drives 47, 48 and adjusting screws 30, the gripper pads 8 against or with the support of Pressure of the compression springs 42 can be pivoted about the gripper shaft 41.
  • FIGS. 5 and 6 thus allows a basic adjustment of each gripper support 8, as well as the common adjustment of all four gripper supports 8 by means of the central adjusting device 17th
  • the gripper pad 8 can also be seen from Figure 7, be attached to a cantilevered spring beam 49 which seen from the gripper pad 8 made of, is attached behind the gripper bar 5 by means of screws 2 9 to the drum body. 6
  • the self-suspension of this relatively rigid cantilever 49 is sufficient to always lie flush against one or more of its underside Hold adjusting screws 30.
  • By vertical adjustment of the adjusting screws 30 of the spring beam 49 is deflected and thereby the size J Lferauflage adjusted in the radial direction 8, ie set to be processed paper thickness higher or lower.
  • the gripper pad 8 is attached to a swivel bearing 50 instead of a spring bar 49, the bearing arms of which have approximately the length of the spring bar 49.
  • the pivot bearing 50 itself is therefore, as seen from the gripper support 8, also arranged behind the gripper bridge 5 on the drum body 6.
  • a tension spring 52 ensures that the gripper pad 8 always bears against the upper end of an adjusting screw 30.
  • the mode of operation of this gripper pad arrangement is obvious.
  • the gripper support 8 is pivoted about the pivot bearing 50 by vertically adjusting the adjusting screws 30. This pivoting is used to adjust the height of the gripper pad 8.
  • FIGS. 9 and 10 show an embodiment of the gripper support 8 which could be used in the exemplary embodiments described above. It enables the gripper pad to be aligned linearly.
  • the gripper pad 8 consists of an upper bar 59 and a lower bar 60, which are separated from one another by the opening 25. At each end of the gripper pad 8, webs 56 connect the two beams to one another.
  • the thickness of the bars 59 and 60 can be chosen to be the same or different depending on the requirements.
  • Both bars 59, 60 are connected to one another via the opening 25 by means of clamping screws 53. A large number of such tensioning screws 53 can be provided at regular intervals from one another over the length of the gripper support 8.
  • the opening 25 has a recess 54 in which a double clamping nut 55 is provided, through the inner bore of which the clamping screw 53 is passed through.
  • the invention is not restricted to the illustrated embodiments.
  • means would also have to be provided to report the respectively set position of the gripper pads 8 to the control panel.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Making Paper Articles (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Paper (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Unwinding Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Color Electrophotography (AREA)
  • Discharge By Other Means (AREA)

Abstract

Sheet-guiding drum for sheet-fed rotary printing machines, having a drum body carrying at least two gripper bridges adjustable to different paper thicknesses, includes gripper supports carried by the drum, the gripper supports being adjustable in at least substantially radial direction of the drum; play-free adjusting elements carried by the drum body and adjustable independently of one another for adjusting the gripper supports; and a central adjusting device mounted readily accessibly on the drum body for actuating the adjusting elements in common.

Description

Die Erfindung betrifft eine Umführtrommel für Bogendruckmaschinen, insbesondere für Kartonmaschinen, mit mindestens zwei Greiferbrücken, die auf unterschiedliche Papierdicken einstellbar sind.The invention relates to a transfer drum for sheet-fed printing machines, in particular for board machines, with at least two gripper bridges, which can be adjusted to different paper thicknesses.

Aus der japanischen Patentoffenlegung Nr. Sho 57-174263 (1982) ist eine Einrichtung zum Hoch- und Tiefstellen der Greiferauflage einer Greiferbrücke eines bogenführenden Zylinders bekannt. Das Einstellen der Greiferauflage auf die Dicke des zu verarbeitenden Papiers erfolgt mit einer Einstellstange, die in axialer Richtung des Zylinders gegen Federkraft mittels einer Schraube verschiebbar unmittelbar unter einer sich über die gesamte Zylinderlänge erstreckende Greiferauflage angeordnet ist. Da die Berührungsflächen von Greiferauflage und Einstellstangen in Zylinderlängsrichtung entgegengesetzt konisch verlaufen, verursacht eine Verschiebung der Einstellstange die radiale Höhenverlagerung der Greiferauflage.From Japanese Patent Laid-Open No. Sho 57-174263 (1982), a device for raising and lowering the gripper pad of a gripper bridge of a sheet-guiding cylinder is known. The adjustment of the gripper pad to the thickness of the paper to be processed is carried out with an adjusting rod which is arranged in the axial direction of the cylinder against spring force by means of a screw and is arranged directly under a gripper pad extending over the entire cylinder length. Since the contact surfaces of the gripper pad and adjusting rods run in the opposite direction in the longitudinal direction of the cylinder, a displacement of the adjusting rod causes the radial height shift of the gripper pad.

Diese bekannte Einrichtung ermöglicht zwar alle Einzelgreiferauflagen einer Greiferbrücke gemeinsam zu verstellen, jedoch ist die Ausrichtung der Einzelgreiferauflagen zueinander damit nicht durchführbar.Although this known device enables all individual gripper pads of a gripper bridge to be adjusted jointly, the alignment of the individual gripper pads to one another is therefore not feasible.

Bei Kartonmaschinen ist es bekanntlich für einen passerhaltigen Bogentransport von Vorteil, wenn die bogenführenden Zylinder und Trommeln einen relativ großen Durchmesser beispielsweise bei Offsetmaschinen den doppelten Durchmesser von Platten- und Gummizylinder aufweisen. Für jede Bogenführungsfläche eines Zylinders oder einer Umführtrommel muß eine Greiferbrücke vorgesehen sein. Umführtrommeln mit doppeltem Durchmesser haben folglich zwei und mit dreifachem Durchmesser drei Greiferbrücken. Bei Anordnung von mehr als einer Greiferbrücke auf einem Zylinder oder einer Umführtrommel wirken sich allerdings schon geringe Verarbeitungsfehler wie Mittenversatz oder Nichtlinearität der Einzelgreiferauflagen zueinander besonders nachteilig auf den Passer aus. Ferner ist es zeitraubend, die Greiferauflagen mehrerer Greiferbrücken einzeln auf die Dicke des zu verarbeitenden Papiers oder Kartons einzustellen. Dabei müssen die Greiferauflagen einer Umführtrommel exakt auf gleiche Höhe eingestellt werden, was sicherlich erhebliche Schwierigkeiten bereitet.In cardboard machines, it is known that it is advantageous for a sheet-containing sheet transport if the sheet-guiding cylinders and drums have a relatively large diameter, for example in offset machines, twice the diameter of plate and blanket cylinders. A gripper bridge must be provided for each sheet guiding surface of a cylinder or a transfer drum. Transfer drums with double diameter therefore have two and three with triple diameter gripper bars. If more than one gripper bridge is arranged on a cylinder or a transfer drum, however, there are only minor effects Processing errors such as center offset or non-linearity of the individual gripper pads to one another particularly adversely affect the register. Furthermore, it is time-consuming to individually adjust the gripper pads of several gripper bridges to the thickness of the paper or cardboard to be processed. The gripper pads of a transfer drum have to be set to exactly the same height, which certainly presents considerable difficulties.

Der Erfindung liegt daher die Aufgabe zugrunde, bei Umführtrommeln der Eingangs genannten Art, die Greiferauflagen aller Greiferbrücken einer Umführtrommel gemeinsam zu verstellen, ohne jedoch die Möglichkeit der Einzeljustierung zumindest einiger Gruppen von Einzelgreiferauflagen zueinander zu mindern.The invention is therefore based on the object, in the case of transfer drums of the type mentioned, to adjust the gripper supports of all gripper bridges of a transfer drum without, however, reducing the possibility of individual adjustment of at least some groups of individual gripper supports to one another.

Die Lösung der Aufgabe umreißt Anspruch 1. Eine gemeinsame Verstellung aller Greiferauflagen einer Umfühtrommel über eine einzige zentrale Verstellvorrichtung verkürzt die Rüstzeit und ermöglicht eine einfache Handhabung. Eine Umführtrommel mit mehreren für sich verstellbaren Greiferbrücken müßte in die einzelnen Stellungen gepunktet werden, in denen jede Greiferbrücke zugänglich wäre. Allein schon dieses Weiterpunkten wäre sehr zeitraubend. Gleiche Höhe aller Einzelgreiferauflagen, d.h. alle Auflageflächen liegen in einer Ebene, sowie Spielfreiheit der Verstellmittel ist in jeder Höheneinstellung gegeben. Geringfügige Fertigungs- und Montageungenauigkeiten können durch die vorgesehenen Justiermöglichkeiten Berücksichtigung finden, so daß trotz mehrerer Greiferbrücken auf einer Umführtrommel ein guter, einheitlicher Passer bei allen Drucken einer Auflage gewährleistet ist. Sind mehrere Umführtrommeln nach der Erfindung in einer Druckmaschine vorgesehen, so können sie derart eingebaut werden, daß in einer bestimmten Stellung aller Zylinder die Verstellvorrichtungen aller Umführtrommeln zugänglich sind.The solution to the task outlines claim 1. A common adjustment of all gripper supports of a transfer drum via a single central adjustment device shortens the set-up time and enables simple handling. A transfer drum with several gripper bridges that could be adjusted individually would have to be dotted into the individual positions in which each gripper bridge would be accessible. This further point alone would be very time consuming. Same height of all single gripper pads, i.e. all contact surfaces are on one level, and there is no play in the adjustment means at any height setting. Minor manufacturing and assembly inaccuracies can be taken into account through the adjustment options provided, so that, despite several gripper bridges on a transfer drum, a good, uniform register is guaranteed for all prints of a print run. If several transfer drums according to the invention are provided in a printing press, they can be installed in such a way that the adjusting devices of all transfer drums are accessible in a certain position of all cylinders.

Weitere Einzelheiten und Vorteile der Erfindung sind der nachfolgenden Beschreibung zu entnehmen. In der Zeichnung sind mehrere Ausführungsformen dargestellt.Further details and advantages of the invention can be found in the following description. Several embodiments are shown in the drawing.

Es zeigt:

  • Fig. 1 eine Umführtrommel nach der Erfindung mit drei Greiferbrücken,
  • Fig. 2 einen Längsschnitt durch eine Umführtrommel nach Fig. l,
  • Fig. 3 eine Umführtrommel nach der Erfindung mit zwei Greiferbrücken,
  • Fig. 4 eine Seitenansicht der Umführtrommel nach Fig. 3,
  • Fig. 5 eine Umführtrommel mit vier Greiferbrücken,
  • Fig. 6 einen Längsschnitt durch die Umfühtrommel nach Fig. 5,
  • Fig. 7 eine federnd aufgehängte Greiferauflage,
  • Fig. 8 eine verschwenkbar aufgehängte Greiferauflage,
  • Fig. 9 eine als justierbarer Doppelbalken ausgebildete Greiferauflage nach der Erfindung und
  • Fig.10 einen Schnitt durch die Greiferauflage nach Fig. 9.
It shows:
  • 1 is a transfer drum according to the invention with three gripper bridges,
  • 2 shows a longitudinal section through a transfer drum according to FIG. 1,
  • 3 shows a transfer drum according to the invention with two gripper bridges,
  • 4 shows a side view of the transfer drum according to FIG. 3,
  • 5 is a transfer drum with four gripper bridges,
  • 6 shows a longitudinal section through the transfer drum according to FIG. 5,
  • 7 is a resiliently suspended gripper pad,
  • 8 is a pivotally suspended gripper pad,
  • Fig. 9 is designed as an adjustable double bar gripper pad according to the invention and
  • 10 shows a section through the gripper pad according to FIG. 9.

Die Umführtrommel 1 nach Fig. 1 übernimmt einen bedruckten Bogen von dem Druckzylinder 2 des voraufgehenden Druckwerkes und übergibt ihn an den Druckzylinder 3 des nachfolgenden Druckwerkes. Zur Erzielung eines passerhaltigen sicheren Transports nicht nur von Bogen, sondern auch von Karton ist die Umführtrommel 1 mit einem Durchmesser versehen, der dreimal so groß ist wie derjenige der nicht dargestellten Druckwerkszylinder. Das Durchmesserverhältnis der Druckzylinder 2 und 3 zur Umführtrommel 1 ist 2 zu 3. Dementsprechend weist die Umführtrommel 1 drei Bogentragflächen 4 auf. Am Beginn einer jeder Bogentragfläche 4 ist eine Greiferbrücke 5 vorgesehen. Diese Greiferbrücken 5 sind somit symmetrisch auf dem Umfang der Umführtrommel 1 verteilt angeordnet. Sie sind am Trommelkörper 6 befestigt. Die Greifer 7 der Greiferbrücke 5 wirken zusammen mit einer durchgehenden Greiferauflage 8, auf der für jeden Greifer 7 eine Einzelgreiferauflage 32 - auch Auflageklötzchen genannt - vorgesehen ist. Die Greiferauflage 8 ist an der Greiferbrückenkonsole 9 mittels Schrauben 10 in radialer Richtung verstellbar angebracht. Über einen Lenker 11 ist die Greiferauflage 8 mit einer Stellscheibe 12 gelenkig verbunden. Die Anlenkung des Lenkers 11 an der Stellscheibe 12 ist derart, daß durch Drehung der Stellscheibe 12 die Greiferauflage 8 mittels des Kniehebelsprinzips in radialer Richtung verschoben werden kann.1 takes over a printed sheet from the printing cylinder 2 of the preceding printing unit and transfers it to the printing cylinder 3 of the subsequent printing unit. To achieve safe transport with passports not only of sheets, but also of cardboard the transfer drum 1 is provided with a diameter which is three times as large as that of the printing unit cylinder, not shown. The diameter ratio of the pressure cylinders 2 and 3 to the transfer drum 1 is 2 to 3. Accordingly, the transfer drum 1 has three sheet-shaped support surfaces 4. A gripper bridge 5 is provided at the beginning of each arch support surface 4. These gripper bridges 5 are thus distributed symmetrically on the circumference of the transfer drum 1. They are attached to the drum body 6. The grippers 7 of the gripper bridge 5 act together with a continuous gripper support 8, on which a single gripper support 32 - also called support blocks - is provided for each gripper 7. The gripper pad 8 is attached to the gripper bridge bracket 9 so that it can be adjusted in the radial direction by means of screws 10. The gripper pad 8 is connected in an articulated manner to an adjusting disc 12 via a link 11. The articulation of the link 11 on the adjusting disc 12 is such that the gripper pad 8 can be displaced in the radial direction by means of the toggle lever principle by rotating the adjusting disc 12.

Der Lenker 11 ist mit Justiermitteln 13 versehen, die eine Längenänderung des Lenkers 11 und damit eine Einzeljustierung der Greiferauflage ermöglichen. Die Lenker 11 greifen am stirnseitigen Ende der Greiferauflage 8 an. Dementsprechend ist auch an jeder Stirnseite der Umführtrommel 1 auf einer Wellenschulter 14 je eine Stellscheibe 12 vorgesehen. Die Lenker 11 befinden sich somit zwischen der Maschinenseitenwand 15 und der Trommelstirnwand 16. Alle Gelenke müssen selbstverständlich spielfrei gestellt werden.The handlebar 11 is provided with adjusting means 13, which allow a change in length of the handlebar 11 and thus an individual adjustment of the gripper pad. The links 11 engage at the front end of the gripper pad 8. Accordingly, an adjusting disk 12 is provided on each end of the transfer drum 1 on a shaft shoulder 14. The links 11 are thus between the machine side wall 15 and the drum front wall 16. All joints must of course be made free of play.

An einer der drei Greiferbrücken 5 ist leicht zugänglich eine zentrale Stellvorrichtung 17 vorgesehen. Sie besteht aus einer Sechskantstellschraube 18 mit Skala 19 und einer Schnecke 20, die am unteren freien Ende der Sechskantschraube 18 angebracht ist. Wie insbesondere Fig. 2 zu entnehmen ist, befindet sich das mit der Schnecke 20 zusammenwirkende Schneckenrad 21 auf einer Stellwelle 22, die drehbar in den Stirnwänden 16 der Umführtrommel 1 gelagert ist. Auf das jeweils aus der Stirnwand 16 herausragende freie Ende der Stellwelle 22 ist je ein Stellritzel 23 befestigt, das in einen Zahnkranzabschnitt 24 eingreift, der am Umfang der Stellscheiben 12 vorgesehen ist.A central adjusting device 17 is provided in an easily accessible manner on one of the three gripper bridges 5. It consists of a hexagon screw 18 with a scale 19 and a screw 20 which is attached to the lower free end of the hexagon screw 18. As in particular Fig. 2 to can be seen, the worm wheel 21 cooperating with the worm 20 is located on an adjusting shaft 22 which is rotatably mounted in the end walls 16 of the transfer drum 1. On the respective free end of the actuating shaft 22 protruding from the end wall 16, an adjusting pinion 23 is fastened, which engages in a toothed ring section 24, which is provided on the circumference of the adjusting disks 12.

Durch Drehen der Sechskantschraube 18 mittels eines Werkzeugs kann über den Schneckentrieb 20,21, Stellwelle 22, Stellritzel 23, Stellscheibe 12 und Lenker 11 jede der drei Greiferauflagen 8 gleichzeitig um einen bestimmten Betrag verstellt werden. Die eingestellte Höhe kann auf der Skala 19 abgelesen werden. Aufgrund der Spielfreistellung und der individuellen Justiermöglichkeit jeder Greiferauflage 8 erfolgt eine gleichzeitige präzise Höher- oder Tieferstellung aller drei Greiferauflagen 8 um genau denselben Betrag. Außerdem sind die Greiferauflagen 8 linear einjustiert.By turning the hexagon screw 18 using a tool, each of the three gripper pads 8 can be adjusted simultaneously by a certain amount via the worm drive 20, 21, actuating shaft 22, actuating pinion 23, actuating disk 12 and link 11. The set height can be read on the scale 19. Due to the release of play and the individual adjustment possibility of each gripper support 8, all three gripper supports 8 are simultaneously raised or lowered precisely by the same amount. In addition, the gripper pads 8 are linearly adjusted.

Die in der Fig. 3 dargestellte Ausführungsform der Erfindung zeigt eine Umführtrommel 1 mit nur zwei Greiferbrücken 5. Dies deshalb, weil die Umführtrommel 1 den zweifachen Durchmesser der benachbarten Druckzylinder 2 und 3 aufweist. Die beiden Greiferbrücken 5 liegen sich diametral gegenüber. Sie sind jeweils am Beginn der Bogentragfläche 4 angeordnet. Die Greiferauflage 8 ist, wie insbesondere aus Fig. 4 zu ersehen ist, als federnder Spannbalken ausgebildet. Sie weist einen längsverlaufenden Durchbruch 25 auf, der am Ende der Greiferauflage 8 nur schmale Stege 26 übrig läßt. Der Durchbruch 25 teilt die Greiferauflage 8 in ihrer Längsrichtung in eine federnde Spannschiene 27 und einen starren Greiferauflageträger 28. In ihrem mittleren Bereich ist die Spannschiene 27 über Schrauben 29 an dem Trommelkörper 6 befestigt. Die gesamte Greiferauflage 8 ist somit ausschließlich über die Schrauben 29 mit dem Trommelkörper 6 verbunden.The embodiment of the invention shown in FIG. 3 shows a transfer drum 1 with only two gripper bridges 5. This is because the transfer drum 1 has twice the diameter of the adjacent pressure cylinders 2 and 3. The two gripper bridges 5 are diametrically opposite. They are each arranged at the beginning of the arch wing 4. The gripper pad 8, as can be seen in particular from FIG. 4, is designed as a resilient clamping beam. It has a longitudinal opening 25 which leaves only narrow webs 26 at the end of the gripper support 8. The opening 25 divides the gripper support 8 in its longitudinal direction into a resilient clamping rail 27 and a rigid gripper support carrier 28. In the central region, the clamping rail 27 is fastened to the drum body 6 by means of screws 29. The entire gripper pad 8 is thus connected to the drum body 6 exclusively via the screws 29.

An den beiden Enden der Greiferauflage 8, in der Höhe der Stege 26, sind in die Spannschiene 27 jeweils zwei Justierschrauben 30 in Gewindebohrungen eingeschraubt. Das jeweils untere Ende 31 dieser Justierschrauben 30 stützt sich auf einem Stellnocken 33 ab. Dieser ist an einer Stellscheibe 12 befestigt, die wiederum auf einer Wellenschulter 14 zwischen Trommelstirnwand 16 und Maschinenseitenwand 15 drehbar angebracht ist. Die beiden Stellscheiben 12 sind über Traversen 34 drehfest und stabil miteinander verbunden. An einer der beiden Stirnwände 16 des Trommelkörpers 6 ist die zentrale Stellvorrichtung 17 befestigt. Sie weist einen Lagerbock 35 auf, in dem mittels einer Stellschraube 36 eine Stellschnecke 37 gelagert ist. Diese befindet sich im Eingriff mit einem Zahnkranz 38, der an der zugeordneten Stellscheibe 12 vorgesehen ist und seiner Ausbildung nach einem Schneckenrad entspricht.At the two ends of the gripper support 8, at the height of the webs 26, two adjusting screws 30 are screwed into threaded bores in the clamping rail 27. The respective lower end 31 of these adjusting screws 30 is supported on an adjusting cam 33. This is attached to an adjusting disc 12, which in turn is rotatably mounted on a shaft shoulder 14 between the drum end wall 16 and the machine side wall 15. The two adjusting disks 12 are connected to one another in a rotationally fixed and stable manner via cross members 34. The central adjusting device 17 is fastened to one of the two end walls 16 of the drum body 6. It has a bearing block 35 in which an adjusting screw 37 is mounted by means of an adjusting screw 36. This is in engagement with a ring gear 38, which is provided on the associated adjusting disc 12 and corresponds to its design according to a worm wheel.

Durch Drehen der Stellschraube 36 mittels eines Schlüssels werden beide Stellscheiben 12 über Schnecke 37 und Schneckenradzahnkranz 38 entweder im Uhrzeigersinne oder entgegengerichtet gedreht. Entsprechend werden auch die Nocken 33, die auf dem Umfang der Stellscheiben 12 befestigt sind, verdreht. Wegen der Steigung dieser Nocken 33, die beispielsweise einer archimedischen - Spirale folgen kann, werden die Justierschrauben 30 radial aufwärts oder abwärts bewegt. Entsprechend verbiegt sich die Spannschiene 27 der Greiferauflage 8. Der starre Greiferauflageträger 28 bleibt von diesem geringfügigen Durchbiegevorgang praktisch unberührt, wandert lediglich um ein Geringes vertikal auf-oder abwärts. Dieser Verspannvorgang bewirkt also die Höheneinstellung der Greiferauflagen 8 beider Greiferbrücken 5. Da die Justierschrauben 30 außerdem einzeln einstellbar sind, können die Greiferbrückenhälften derart einjustiert werden, daß die Greiferauflage 8 linear verläuft. Außerdem können alle Stellmittel spielfrei eingestellt bzw. montiert werden.By turning the adjusting screw 36 using a key, both adjusting disks 12 are rotated clockwise or counter-clockwise via worm 37 and worm gear ring gear 38. Accordingly, the cams 33, which are fastened on the circumference of the adjusting disks 12, are rotated. Because of the pitch of these cams 33, which can follow an Archimedean spiral, for example, the adjusting screws 30 are moved radially upwards or downwards. Correspondingly, the tensioning rail 27 of the gripper support 8 bends. The rigid gripper support support 28 remains practically unaffected by this slight bending process, only moves a little vertically upwards or downwards. This bracing process thus causes the height adjustment of the gripper supports 8 of both gripper bridges 5. Since the adjusting screws 30 are also individually adjustable, the gripper bridge halves can be adjusted in such a way that the gripper support 8 runs linearly. In addition, all adjusting devices can be set or installed without play.

Bei einer dritten Ausführungsform gemäß den Fig. 5 und 6, ist das Durchmesserverhältnis der Umführtrommel l zu den angrenzenden Druckzylindern 39 und 40 vier zu zwei, d.h., die zentrale Umführtrommel 1 hat vier Greiferbrücken 5, die symmetrisch auf dem Umfang verteilt sind. Die angrenzenden Druckzylindern 39 und 40 haben dem Durchmesserverhältnis entsprechend zwei Greiferbrücken, die sich diametral gegenüberliegen, jedoch in der Fig. 5 nicht dargestellt sind.In a third embodiment according to FIGS. 5 and 6, the diameter ratio of the transfer drum 1 to the adjacent pressure cylinders 39 and 40 is four to two, i.e. the central transfer drum 1 has four gripper bridges 5 which are distributed symmetrically on the circumference. The adjacent pressure cylinders 39 and 40 have two gripper bridges corresponding to the diameter ratio, which are diametrically opposed, but are not shown in FIG. 5.

Die Greiferauflage 8 dieser Greiferbrücken 5 ist verschwenkbar um die Greiferwelle 41 der Greifer 7 aufgehängt. An jedem Ende der Greiferauflage 8 ist ein Doppelhebel 43 angegossen, der das Lager für die Greiferwelle 41 aufnimmt, und dessen freies Ende gegen Druckfedern 42 anliegt, die sich auf der Greiferbrückenkonsole 9 abstützen. Je nach Trommelbreite können mehrere Doppelhebel 43 bzw. Lager vorgesehen sein. Die Druckfedern 42 drücken die Greiferauflage 8 entgegen dem Uhrzeigersinne um die Greiferwelle 41 herum, so daß die Greiferauflage 8 zwangsläufig an dem freien Ende einer Justierschraube 30 anliegt.The gripper pad 8 of these gripper bridges 5 is pivotally suspended around the gripper shaft 41 of the gripper 7. At each end of the gripper support 8, a double lever 43 is cast on, which receives the bearing for the gripper shaft 41, and the free end of which rests against compression springs 42 which are supported on the gripper bracket console 9. Depending on the drum width, several double levers 43 or bearings can be provided. The compression springs 42 press the gripper support 8 counterclockwise around the gripper shaft 41, so that the gripper support 8 inevitably rests against the free end of an adjusting screw 30.

Wie aus Fig. 6 zu ersehen ist, sind mehrere, zumindest aber in jedem Endbereich der Greiferauflage 8 Justierschrauben 30 vorgesehen. Diese sind in je eine Gewindebohrung einer Hohlwelle 45 hineingeschraubt. Die Hohlwelle 45 ist drehbar in der Außenwandung 46 des Trommelkörpers 6 gelagert. An dem unteren freien Ende dieser Hohlwelle 45 ist sie als Kegelrad 47 ausgebildet, das sich mit einem weiteren Kegelrad 48 in Eingriff befindet, welches auf der Stellwelle 22 befestigt ist. Die Justierschraube 30 wird durch eine oberhalb der Hohlwelle 45 vorgesehenen Spannlasche 57 in Verbindung mit dem Arretierstift 58 am Verdrehen gehindert. Die Spannlasche 57 wird nach der Grundjustierung der Justierschrauben 30 angezogen.As can be seen from FIG. 6, a plurality of adjusting screws 30 are provided, but at least in each end region of the gripper support 8. These are screwed into a threaded bore of a hollow shaft 45. The hollow shaft 45 is rotatably supported in the outer wall 46 of the drum body 6. At the lower free end of this hollow shaft 45, it is designed as a bevel gear 47, which is in engagement with a further bevel gear 48, which is fastened on the actuating shaft 22. The adjusting screw 30 is prevented from rotating by a tensioning tab 57 provided above the hollow shaft 45 in connection with the locking pin 58. The clamping tab 57 is tightened after the basic adjustment of the adjusting screws 30.

Die Stellwelle 22 ist in den Trommelstirnwänden 16 drehbar gelagert. Ein freies Ende der Stellwelle'22 trägt das Stellritzel 23, welches sich in Eingriff mit der Stellscheibe 12 befindet. Wie aus Fig. 5 entnommen werden kann, ist jeder Greiferbrücke 5 eine Stellwelle 22 zugeordnet, deren Stellritzel 23 sich mit der Stellscheibe 12 formschlüssig in Eingriff befindet.The adjusting shaft 22 is rotatably supported in the drum end walls 16. A free end of the adjusting shaft '22 transmits the setting pinion 23, which is in engagement with the adjusting disc 12th As can be seen from FIG. 5, each gripper bridge 5 is assigned an actuating shaft 22, the actuating pinion 23 of which is positively engaged with the actuating disk 12.

Zur Verstellung aller vier Stellwellen 22 ist nur eine Stellscheibe 12 vorgesehen. Sie ist wieder auf der Wellenschulter 4 des Trommelkörpers 6 zwischen Stirnwand 16 und Maschinenseitenwand 15 drehbar angeordnet. Die zentrale Stellvorrichtung ist jeder der vier Stellenwellen 22 zugeordnet, und zwar ist das eine freie Ende jeder der vier Stellenwellen 22, nämlich an dem Ende, an dem das Stellritzel 23 befestigt ist, als Stellsechskant 36 ausgebildet. Durch Drehen an einem beliebigen Stellsechskant 36 mittels eines Schlüssels werden über Stellritzel 23, Stellscheibe 12, Stellwellen 22, Kegelradtriebe 47, 48 und Justierschrauben 30 aller vier Greiferauflagen 8 um exakt dieselbe Strecke höher oder tiefer gestellt, wobei die Greiferauflagen 8 gegen oder mit Unterstützung des Druckes der Druckfedern 42 um die Greiferwelle 41 geschwenkt werden.Only one adjusting disk 12 is provided for adjusting all four adjusting shafts 22. It is again rotatably arranged on the shaft shoulder 4 of the drum body 6 between the end wall 16 and the machine side wall 15. The central adjusting device is assigned to each of the four adjusting shafts 22, specifically the one free end of each of the four adjusting shafts 22, namely at the end to which the adjusting pinion 23 is attached, is designed as an adjusting hexagon 36. By turning any hexagon 36 by means of a key, all four gripper pads 8 are set higher or lower by exactly the same distance via adjusting pinion 23, adjusting disk 12, adjusting shafts 22, bevel gear drives 47, 48 and adjusting screws 30, the gripper pads 8 against or with the support of Pressure of the compression springs 42 can be pivoted about the gripper shaft 41.

Die dargestellte Ausführungsform nach den Fig. 5 und 6 gestattet also eine Grundjustierung jeder Greiferauflage 8, sowie die gemeinsame Verstellung aller vier Greiferauflagen 8 mittels der zentralen Stellvorrichtung 17.The embodiment shown in FIGS. 5 and 6 thus allows a basic adjustment of each gripper support 8, as well as the common adjustment of all four gripper supports 8 by means of the central adjusting device 17th

Die Greiferauflage 8 nach der Erfindung kann auch wie aus Fig.7 zu ersehen ist, an einem freitragenden Federbalken 49 befestigt sein, der von der Greiferauflage 8 aus gesehen, hinter der Greiferbrücke 5 mittels Schrauben 29 am Trommelkörper 6 befestigt ist. Die Eigenfederung dieses relativ starren Federbalkens 49 reicht aus, um dessen Unterseite stets bündig anliegend an einer oder mehreren Justierschrauben 30 zu halten. Durch vertikale Verstellung der Justierschrauben 30 wird der Federbalken 49 durchgebogen und dabei die GreJLferauflage 8 in radialer Richtung verstellt, d.h. auf die zu bearbeitende Papierdicke höher oder tiefer eingestellt.The gripper pad 8 according to the invention can also be seen from Figure 7, be attached to a cantilevered spring beam 49 which seen from the gripper pad 8 made of, is attached behind the gripper bar 5 by means of screws 2 9 to the drum body. 6 The self-suspension of this relatively rigid cantilever 49 is sufficient to always lie flush against one or more of its underside Hold adjusting screws 30. By vertical adjustment of the adjusting screws 30 of the spring beam 49 is deflected and thereby the size J Lferauflage adjusted in the radial direction 8, ie set to be processed paper thickness higher or lower.

In Fig. 8 ist die Greiferauflage 8 statt an einem Federbalken 49 an einem Schwenklager 50 angebracht, dessen Lagerarme etwa die Länge des Federbalkens 49 aufweisen. Das Schwenklager 50 selbst ist deshalb, von der Greiferauflage 8 aus gesehen, ebenfalls hinter der Greiferbrücke 5 auf dem Trommelkörper 6 angeordnet. Eine Zugfeder 52 sorgt dafür, daß die Greiferauflage 8 stets an dem oberen Ende einer Justierschraube 30 anliegt. Die Wirkungsweise dieser Greiferauflagenanordnung ist einleuchtend. Durch vertikales Verstellen der Justierschrauben 30 wird die Greiferauflage 8 um das Schwenklager 50 verschwenkt. Diese Schwenkung dient der Höheneinstellung der Greiferauflage 8.In Fig. 8, the gripper pad 8 is attached to a swivel bearing 50 instead of a spring bar 49, the bearing arms of which have approximately the length of the spring bar 49. The pivot bearing 50 itself is therefore, as seen from the gripper support 8, also arranged behind the gripper bridge 5 on the drum body 6. A tension spring 52 ensures that the gripper pad 8 always bears against the upper end of an adjusting screw 30. The mode of operation of this gripper pad arrangement is obvious. The gripper support 8 is pivoted about the pivot bearing 50 by vertically adjusting the adjusting screws 30. This pivoting is used to adjust the height of the gripper pad 8.

In den Figuren 9 und 10 ist eine Ausbildungsform der Greiferauflage 8 gezeigt, wie sie in den zuvor beschriebenen Ausführungsbeispielen Anwendung finden könnte. Sie ermöglicht die lineare Ausrichtung der Greiferauflage. Die Greiferauflage 8 besteht aus einem oberen Balken 59 und einem unteren Balken 60, die durch den Durchbruch 25 voneinander getrennt sind. An jedem Ende der Greiferauflage 8 verbinden Stege 56 beide Balken miteinander. Die Dicke der Balken 59 und 60 kann je nach Erfordernis gleich oder unterschiedlich gewählt werden. Beide Balken 59,60 sind über den Durchbruch 25 hinweg durch Spannschrauben 53 miteinander verbunden. Über die Länge der Greiferauflage 8 können eine Vielzahl derartiger Spannschrauben 53 in regelmäßigen Abständen voneinander vorgesehen sein. Im Bereich jeder Spannschraube 53 weist der Durchbruch 25 je eine Ausnehmung 54 auf, in der eine Doppelspannmutter 55 vorgesehen ist, durch deren Innenbohrung die Spannschraube 53 hindurchgeführt ist. Mit Hilfe der Spannschrauben 53 im Zusammenwirken mit den Doppelspannmuttern 55 kann eine Höhenjustierung jeder Einzelgreiferauflage oder eines Bereiches der Greiferauflage 8 vorgenommen werden.FIGS. 9 and 10 show an embodiment of the gripper support 8 which could be used in the exemplary embodiments described above. It enables the gripper pad to be aligned linearly. The gripper pad 8 consists of an upper bar 59 and a lower bar 60, which are separated from one another by the opening 25. At each end of the gripper pad 8, webs 56 connect the two beams to one another. The thickness of the bars 59 and 60 can be chosen to be the same or different depending on the requirements. Both bars 59, 60 are connected to one another via the opening 25 by means of clamping screws 53. A large number of such tensioning screws 53 can be provided at regular intervals from one another over the length of the gripper support 8. In the area of each clamping screw 53, the opening 25 has a recess 54 in which a double clamping nut 55 is provided, through the inner bore of which the clamping screw 53 is passed through. With the help of the clamping screws 53 in cooperation with the double clamping nuts 55, a height adjustment of each individual gripper pad or an area of the gripper pad 8 can be carried out.

Die Erfindung ist nicht auf die dargestellten Ausführungsformen beschränkt. Beispielweise ist auch denkbar, für die zentrale Stellvorrichtung 17 einen motorischen Antrieb vorzusehen und diesen Motor von dem Steuerpult der Druckmaschine oder einem zentralen Steuerpult mehrerer Druckmaschinen aus zu steuern. Dabei müßten natürlich auch Mittel vorgesehen sein, die die jeweils eingestellte Position der Greiferauflagen 8 zu dem Steuerpult hin rückmelden.The invention is not restricted to the illustrated embodiments. For example, it is also conceivable to provide a motor drive for the central actuating device 17 and to control this motor from the control panel of the printing press or from a central control panel of several printing presses. Of course, means would also have to be provided to report the respectively set position of the gripper pads 8 to the control panel.

TEILELISTEPARTS LIST

  • 1 Umführtrommel1 transfer drum
  • 2 Druckzylinder2 printing cylinders
  • 3 Druckzylinder3 pressure cylinders
  • 4 Bogentragfläche4 arch wing
  • 5 Greiferbrücke5 grab bridge
  • 6 Trommelkörper6 drum bodies
  • 7 Greifer7 grippers
  • 8 Greiferauflage8 gripper pad
  • 9 Greiferbrückenkonsole9 Gripper bridge console
  • 10 Schrauben10 screws
  • 11 Lenker11 handlebars
  • 12 Stellscheibe12 adjusting disc
  • 13 Justiermittel13 adjustment means
  • 14 Wellenschulter14 wave shoulder
  • 15 Maschinenseitenwand15 machine side wall
  • 16 Trommelstirnwand16 drum front wall
  • 17 zentrale Stellvorrichtung17 central adjusting device
  • 18 Sechskantstellschraube18 hexagon screw
  • 19 Skala19 scale
  • 20 Schnecke20 snail
  • 21 Schneckenrad21 worm wheel
  • 22 Stellwelle22 control shaft
  • 23 Stellritzel23 pinion
  • 24 Zahnkranzabschnitt24 ring gear section
  • 25 Durchbruch25 breakthrough
  • 26 Steg26 footbridge
  • 27 Spannschienen27 tensioning rails
  • 28 Greiferauflageträger28 gripper support beams
  • 29 Schrauben29 screws
  • 30 Justierschrauben30 adjusting screws
  • 31 unteres Ende31 bottom end
  • 32 Einzelgreiferauflage32 single gripper pad
  • 33 Stellnocken33 control cams
  • 34 Traversen34 trusses
  • 35 Lagerbock35 bearing block
  • 36 Stellsechskant36 hexagon socket
  • 37 Stellschnecke37 screw
  • 38 Zahnkranz38 ring gear
  • 39 Druckzylinder39 printing cylinders
  • 40 Druckzylinder40 printing cylinders
  • 41 Greiferwelle41 gripper shaft
  • 42 Druckfeder42 compression spring
  • 43 Doppelhebel43 double lever
  • 44 Gewindebohrung44 threaded hole
  • 45 Hohlwelle45 hollow shaft
  • 46 Außenwandung46 outer wall
  • 47 Kegelrad47 bevel gear
  • 48 Kegelrad48 bevel gear
  • 49 Federbalken49 cantilevers
  • 50 Schwenklager50 swivel bearings
  • 51 Lagerarm51 bearing arm
  • 52 Zugfeder52 tension spring
  • 53 Spannschrauben53 clamping screws
  • 54 Ausnehmungen54 recesses
  • 55 Doppelspannmuttern55 double clamping nuts
  • 56 Steg56 footbridge
  • 57 Spannlasche57 tension tab
  • 58 Arretierstift58 locking pin
  • 59 oberer Balken59 upper bar
  • 60 unterer Balken60 lower bars

Claims (13)

1. Umführtrommel für Bogendruckmaschinen, insbesondere für Kartonmaschinen, mit mindestens zwei Greiferbrücken, die auf unterschiedliche Papierdicken einstellbar sind,
dadurch gekennzeichnet, - daß die Greiferauflagen (8) in zumindest annähernd radialer Richtung verstellbar gelagert sind und - daß unabhängig voneinander einjustierbare, spielfrei stellbare Verstellmittel zum Verstellen der Greiferauflagen vorgesehen sind, - die über eine am Trommelkörper (6) leicht zugänglich angebrachte, zentrale Stellvorrichtung (17) gemeinsam betätigbar sind.
1. transfer drum for sheet-fed printing machines, in particular for cardboard machines, with at least two gripper bridges, which can be adjusted to different paper thicknesses,
characterized, - That the gripper pads (8) are adjustably mounted in at least approximately radial direction and that independently adjustable, play-free adjustable adjustment means are provided for adjusting the gripper pads, - Which can be actuated together via an easily accessible, central adjusting device (17) attached to the drum body (6).
2. Umführtrommel nach Anspruch 1,
dadurch gekennzeichnet, - daß die Greiferauflage (8) an der Greiferbrücke (5) radial verstellbar gehalten ist.
2. transfer drum according to claim 1,
characterized, - That the gripper pad (8) on the gripper bridge (5) is held radially adjustable.
3. Umführtrommel nach Anspruch 1,
dadurch gekennzeichnet, - daß die Greiferauflage (8) auf einem Federbalken (49) angeordnet ist.
3. transfer drum according to claim 1,
characterized, - That the gripper pad (8) is arranged on a cantilever (49).
4. Umführtrommel nach Anspruch 1,
dadurch gekennzeichnet, - daß die Greiferauflage (8) um eine in axialer Richtung parallel zur Drehachse der Umführtrommel (1) verlaufende Welle (41) verschwenkbar gelagert ist.
4. transfer drum according to claim 1,
characterized, - That the gripper pad (8) is pivotally mounted about a shaft (41) extending in the axial direction parallel to the axis of rotation of the transfer drum (1).
5. Umführtrommel nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, - daß die Greiferauflage (8) von zwei stirnseitig am Trommelkörper (6) angeordneten Stellscheiben (12) über Lenker (11) verstellbar ist.
5. transfer drum according to one of the preceding claims,
characterized, - That the gripper pad (8) of two on the front Drum body (6) arranged adjusting discs (12) is adjustable via handlebars (11).
6. Umführtrommel nach Anspruch 5,
dadurch gekennzeichnet, - daß im mittleren Bereich einer der Greiferbrücken (5) eine Stellvorrichtung (17) vorgesehen ist, - die über einen Schneckentrieb (20,21), eine Stellwelle (22) und Stellräder (23) die beiden stirnseitig vorgesehenen Stellscheiben (12) betätigt.
6. transfer drum according to claim 5,
characterized, - That an adjusting device (17) is provided in the central region of one of the gripper bridges (5), - The two actuating disks (12) provided on the end are actuated via a worm drive (20, 21), an adjusting shaft (22) and adjusting wheels (23).
7. Umführtrommel nach Anspruch 5,
dadurch gekennzeichnet, - daß die Länge jedes Lenkers (11) einstellbar ist.
7. transfer drum according to claim 5,
characterized, - That the length of each handlebar (11) is adjustable.
8. Umführtrommel nach Anspruch 1,
dadurch gekennzeichnet, - daß die Greiferauflage (8) selbst als federnder Spannbalken ausgebildet ist, dergestalt, - daß ein in Längsrichtung der Greiferauflage (8) verlaufender Durchbruch (25) die Greiferauflage (8) in eine dünne nachgiebige Spannschiene (27) und einen starren Greiferauflageträger (28) teilt, - wobei in dem Mittenbereich der Spannschiene (27) die Greiferauflage (8) über Schrauben (29) am Trommelkörper (6) befestigt ist.
8. transfer drum according to claim 1,
characterized, - That the gripper pad (8) itself is designed as a resilient clamping beam, such that - That a breakthrough (25) extending in the longitudinal direction of the gripper support (8) divides the gripper support (8) into a thin, flexible tensioning rail (27) and a rigid gripper support support (28), - The gripper pad (8) is fastened to the drum body (6) by means of screws (29) in the central region of the tensioning rail (27).
9. Umführtrommel nach Anspruch 8,
dadurch gekennzeichnet, - daß an einer der Stirnseiten des Trommelkörpers (6) die Stellvorrichtung (17) vorgesehen ist, - die mittels eines Schneckentriebs (37,38) über Traversen (34) miteinander verbundene, nockentragende Stellscheiben (12) betätigt, - wobei die Nocken (33) der Stellscheiben (12) auf die Enden von Justierschrauben (30) einwirken, - die in die beiden Endbereiche der Greiferauflage (8) eingeschraubt sind.
9. transfer drum according to claim 8,
characterized, - That the adjusting device (17) is provided on one of the end faces of the drum body (6), - The cam-actuated adjusting disks (12), which are connected to one another by means of a worm drive (37, 38) via traverses (34), - The cams (33) of the adjusting disks (12) act on the ends of adjusting screws (30), - Which are screwed into the two end regions of the gripper support (8).
10. Umführtrommel nach einem der Ansprüche 1,3 oder 4,
dadurch gekennzeichnet, - daß die verschwenkbar gelagerte Greiferauflage (8) gegen Federkraft über Justierschrauben (30) verstellbar ist, - wobei die Justierschrauben (30) von einer stirnseitig am Trommelkörper (6) angeordneten Stellvorrichtung (17) über eine Stellscheibe (12), Stellwellen (22) und Kegelradtriebe (47,48) betätigbar sind.
10. transfer drum according to one of claims 1, 3 or 4,
characterized, - That the pivoted gripper pad (8) is adjustable against spring force via adjusting screws (30), - The adjusting screws (30) can be actuated by an adjusting device (17) arranged on the end face on the drum body (6) via an adjusting disk (12), adjusting shafts (22) and bevel gear drives (47, 48).
11. Umführtrommel nach einem oder mehreren der vorangehenden Ansprüche,
dadurch gekennzeichnet, - daß die Greiferauflage (8) um ein Lager (50) verschwenkbar ist, - das auf dem Trommelkörper (6), von der Greiferauflage (8) aus gesehen, hinter der Greiferwelle (41) angeordnet ist und - dessen Drehachse parallel zur Greiferwelle (41) verläuft.
11. transfer drum according to one or more of the preceding claims,
characterized, - That the gripper pad (8) is pivotable about a bearing (50), - Which is arranged on the drum body (6), seen from the gripper support (8), behind the gripper shaft (41) and - Its axis of rotation runs parallel to the gripper shaft (41).
12. Umführtrommel nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet, - daß die Greiferauflage (8) mehrere Spannschrauben (53) aufweist, - die über den Durchbruch (25) hinweg den oberen Balken (59) und den unteren Balken (60) miteinander verbinden und - im Zusammenwirken mit im Durchbruch (25) über die Spannschrauben (53) geschraubte Doppelspannmuttern (55) die Ausrichtung der Greiferauflage (8) ermöglichen.
12. transfer drum according to one or more of the preceding claims,
characterized, - That the gripper pad (8) has a plurality of clamping screws (53), - Which connect the upper bar (59) and the lower bar (60) to one another via the opening (25) and - In cooperation with the double clamping nuts (55) screwed into the opening (25) via the clamping screws (53), the alignment of the gripper support (8) is made possible.
13. Umführtrommel nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, - daß die zentrale Stellvorrichtung (17) motorisch angetrieben und - von einem Steuerpult aus steuerbar ist.
13. transfer drum according to one of the preceding claims,
characterized, - That the central adjusting device (17) is motor-driven and - Can be controlled from a control panel.
EP85108427A 1984-08-03 1985-07-08 Transfer drum for sheet-fed printing machines, in particular for cartoning machines Expired - Lifetime EP0170111B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108427T ATE57655T1 (en) 1984-08-03 1985-07-08 TRANSFER DRUM FOR SHEET PRINTING MACHINES, ESPECIALLY CARTON MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3428668 1984-08-03
DE19843428668 DE3428668A1 (en) 1984-08-03 1984-08-03 DEVICE DRUM FOR SHEET PRINTING MACHINES, ESPECIALLY CARDBOARD MACHINES

Publications (3)

Publication Number Publication Date
EP0170111A2 true EP0170111A2 (en) 1986-02-05
EP0170111A3 EP0170111A3 (en) 1987-08-19
EP0170111B1 EP0170111B1 (en) 1990-10-24

Family

ID=6242285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108427A Expired - Lifetime EP0170111B1 (en) 1984-08-03 1985-07-08 Transfer drum for sheet-fed printing machines, in particular for cartoning machines

Country Status (8)

Country Link
US (1) US4667952A (en)
EP (1) EP0170111B1 (en)
JP (1) JPH0829586B2 (en)
AT (1) ATE57655T1 (en)
AU (1) AU577603B2 (en)
CA (1) CA1258270A (en)
DE (2) DE3428668A1 (en)
ES (1) ES8609035A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652105A1 (en) * 1993-11-04 1995-05-10 MAN Roland Druckmaschinen AG Sheet transfer cylinder for a printing press
FR2722137A1 (en) * 1994-07-09 1996-01-12 Roland Man Druckmasch PLIERS CYLINDER USED IN A FOLDING MACHINE
EP0838402A2 (en) * 1996-10-23 1998-04-29 Graphic Management Associates, Inc. Bundling and strapping devices and methods
EP1070582A1 (en) * 1999-07-22 2001-01-24 MAN Roland Druckmaschinen AG Sheet guiding cylinder for a rotary press

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DE3602084A1 (en) * 1986-01-24 1987-07-30 Heidelberger Druckmasch Ag BOW TRANSFER DRUM BETWEEN THE PRINTING UNITS OF ROTATIONAL PRINTING MACHINES
DE3920821C2 (en) * 1989-06-24 1994-01-27 Heidelberger Druckmasch Ag Format multiple adjustment drive for a sheet-fed rotary printing press
US5125336A (en) * 1990-07-20 1992-06-30 De La Rue Giori S.A. Device for transferring individual sheets to the impression cylinder of a sheet-fed rotary printing machine
DE4103296C1 (en) * 1991-02-04 1992-04-23 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
GB2268162A (en) * 1992-06-19 1994-01-05 Shinohara Machinery Co Ltd Sheet-feeding cylinder with grippers.
DE4233422C1 (en) * 1992-10-05 1994-01-13 Roland Man Druckmasch Sheet-grip mechanism for rotary printing press - has rollers at stop strip ends working against fixed cams to move it up and down
DE4442301C5 (en) * 1994-09-05 2006-12-14 Heidelberger Druckmaschinen Ag Sheet transfer drum
DE4433998A1 (en) * 1994-09-23 1996-04-04 Roland Man Druckmasch Sheet guiding drum for rotary printing machines
DE4433999C2 (en) 1994-09-23 1998-02-19 Roland Man Druckmasch Sheet guiding drum for rotary printing machines
DE4434000C2 (en) * 1994-09-23 1998-02-26 Roland Man Druckmasch Sheet guiding drum for rotary printing machines
DE19542160C1 (en) * 1995-11-11 1997-01-23 Roland Man Druckmasch Sheet-feeding drum for rotary printing machine
DE19642104C2 (en) * 1996-10-12 1998-09-10 Roland Man Druckmasch Arrangement for the decentralized individual adjustment of gripper cantilevers in sheet-guiding drums or cylinders of rotary printing presses
DE19739571B4 (en) * 1996-12-17 2007-05-31 Heidelberger Druckmaschinen Ag Adjusting device for a height adjustment of diametrically opposed gripper bars on sheet-guiding cylinders of printing machines
DE10336715A1 (en) * 2002-09-06 2004-03-18 Heidelberger Druckmaschinen Ag Gripper device for a sheet processing printer or rotary printer, has separate drives for the gripper and gripper support so that gripper chatter is reduced during high speed printing
NL1021417C2 (en) * 2002-09-09 2004-03-10 Stork Prints Bv Printing cylinder support unit.
JP2008142905A (en) * 2006-12-06 2008-06-26 Shinohara Machinery Co Ltd Gripper seat mechanism of sheet-feed press
JP2008142904A (en) * 2006-12-06 2008-06-26 Shinohara Machinery Co Ltd Gripper seat height adjusting device of sheet-feed press
JP5513781B2 (en) * 2009-06-15 2014-06-04 株式会社小森コーポレーション Nail height adjustment device
DE102012010886A1 (en) 2012-06-01 2013-12-05 Heidelberger Druckmaschinen Aktiengesellschaft Transmission drum for conveying sheet, has driven element movable perpendicular to rotational axis and mounted at inclined surface of pushrod and coupled with holder, where pushrod is coupled with latch assembly
DE102013008780A1 (en) * 2012-06-25 2014-01-02 Heidelberger Druckmaschinen Ag Transmission drum i.e. multiple-large transmission drum, for conveying arc in gripper, has positioning device including sequential circuit with drive link, and driven element arranged at body and coupled with holder
US20140020583A1 (en) * 2012-07-17 2014-01-23 Avi Barazani Adaptable impression drum

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US2699333A (en) * 1952-03-27 1955-01-11 L W Claybourn Inc Apparatus and method for feeding sheets to printing presses
DE1014558B (en) * 1955-03-12 1957-08-29 Roland Offsetmaschf Gripper device on sheet conveying devices, which take over sheets from the printing cylinder of sheet-fed printing machines or transfer them to him
US3332345A (en) * 1965-05-24 1967-07-25 Improved Products Company Sheet alignment apparatus
DE1259904B (en) * 1964-12-17 1968-02-01 Roland Offsetmaschf Device on the sheet guiding devices of a multi-color sheet-fed rotary printing press for influencing the registration of the prints
CH457507A (en) * 1966-05-26 1968-06-15 Planeta Veb Druckmasch Werke Gripper device for transfer and feed drums as well as printing cylinders in sheet-fed rotary machines
DE1561072B1 (en) * 1967-03-25 1970-01-22 Heidelberger Druckmasch Ag Device on the transfer drum of sheet-fed rotary printing machines for register correction
DE1909795B1 (en) * 1969-02-27 1970-07-30 Heidelberger Druckmasch Ag Device on sheet transfer drums of multi-color sheet-fed rotary printing machines for register correction by deforming the leading edge of the sheet

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DE2011737B2 (en) * 1970-03-12 1971-07-29 Maschinenfabrik Augsburg Nürnberg AG, 8900 Augsburg GRIPPER DEVICE IN PARTICULAR ON TRANSFER DRUMS OF SHEET ROTATION PRINTING MACHINES
US3865362A (en) * 1973-02-23 1975-02-11 Miller Printing Machinery Co Sheet transfer cylinder
DE2824733C2 (en) * 1978-06-06 1984-03-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Transfer drum for perfecting presses
DE3011365A1 (en) * 1980-03-25 1981-10-01 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Rotary sheet printing machine swivelling grab mechanism - has foot engaged by leaf springs fastened to striker near pivot
JPS57174263A (en) * 1981-04-21 1982-10-26 Komori Printing Mach Co Ltd Claw base vertical mover for sheet printer

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US2699333A (en) * 1952-03-27 1955-01-11 L W Claybourn Inc Apparatus and method for feeding sheets to printing presses
DE1014558B (en) * 1955-03-12 1957-08-29 Roland Offsetmaschf Gripper device on sheet conveying devices, which take over sheets from the printing cylinder of sheet-fed printing machines or transfer them to him
DE1259904B (en) * 1964-12-17 1968-02-01 Roland Offsetmaschf Device on the sheet guiding devices of a multi-color sheet-fed rotary printing press for influencing the registration of the prints
US3332345A (en) * 1965-05-24 1967-07-25 Improved Products Company Sheet alignment apparatus
CH457507A (en) * 1966-05-26 1968-06-15 Planeta Veb Druckmasch Werke Gripper device for transfer and feed drums as well as printing cylinders in sheet-fed rotary machines
DE1561072B1 (en) * 1967-03-25 1970-01-22 Heidelberger Druckmasch Ag Device on the transfer drum of sheet-fed rotary printing machines for register correction
DE1909795B1 (en) * 1969-02-27 1970-07-30 Heidelberger Druckmasch Ag Device on sheet transfer drums of multi-color sheet-fed rotary printing machines for register correction by deforming the leading edge of the sheet

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652105A1 (en) * 1993-11-04 1995-05-10 MAN Roland Druckmaschinen AG Sheet transfer cylinder for a printing press
FR2722137A1 (en) * 1994-07-09 1996-01-12 Roland Man Druckmasch PLIERS CYLINDER USED IN A FOLDING MACHINE
US6048297A (en) * 1994-07-09 2000-04-11 Man Roland Druckmaschinen Ag Gripper cylinder in a folding apparatus
EP0838402A2 (en) * 1996-10-23 1998-04-29 Graphic Management Associates, Inc. Bundling and strapping devices and methods
EP0838402A3 (en) * 1996-10-23 1998-09-02 Graphic Management Associates, Inc. Bundling and strapping devices and methods
EP1394045A2 (en) * 1996-10-23 2004-03-03 Graphic Management Associates, Inc. Bundling and strapping devices and methods
EP1394045A3 (en) * 1996-10-23 2004-03-10 Graphic Management Associates, Inc. Bundling and strapping devices and methods
EP2077234A1 (en) * 1996-10-23 2009-07-08 Graphic Management Associates, Inc. Bundling and strapping devices and methods
EP1070582A1 (en) * 1999-07-22 2001-01-24 MAN Roland Druckmaschinen AG Sheet guiding cylinder for a rotary press

Also Published As

Publication number Publication date
CA1258270A (en) 1989-08-08
DE3580204D1 (en) 1990-11-29
ES8609035A1 (en) 1986-07-16
AU577603B2 (en) 1988-09-29
US4667952A (en) 1987-05-26
DE3428668A1 (en) 1986-02-13
AU4448685A (en) 1986-02-06
ATE57655T1 (en) 1990-11-15
JPH0829586B2 (en) 1996-03-27
DE3428668C2 (en) 1989-04-27
ES544900A0 (en) 1986-07-16
JPS6141549A (en) 1986-02-27
EP0170111B1 (en) 1990-10-24
EP0170111A3 (en) 1987-08-19

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