EP0970808A1 - Gripper for a sheet transfer cylinder or drum of a rotary printing machine - Google Patents

Gripper for a sheet transfer cylinder or drum of a rotary printing machine Download PDF

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Publication number
EP0970808A1
EP0970808A1 EP99111077A EP99111077A EP0970808A1 EP 0970808 A1 EP0970808 A1 EP 0970808A1 EP 99111077 A EP99111077 A EP 99111077A EP 99111077 A EP99111077 A EP 99111077A EP 0970808 A1 EP0970808 A1 EP 0970808A1
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EP
European Patent Office
Prior art keywords
gripper
shaft
radius
pivot point
drum
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
EP99111077A
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German (de)
French (fr)
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EP0970808B1 (en
Inventor
Rudi Haupenthal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP0970808A1 publication Critical patent/EP0970808A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/104—Gripper details

Definitions

  • the invention relates to a gripper on a sheet transporting cylinder Rotary printing machine, in particular a pliers gripper on a turning drum.
  • a so-called pliers gripper which consists of a Gripper and a counter-gripper is formed.
  • the gripper forms the Gripper support and the counter gripper opposite the gripper support swiveling gripper fingers. Over the axial length of the sheet transporting Distributed cylinders, a number of these grippers are arranged at intervals.
  • the Gripper pads are screwed to a common gripper shaft. To this
  • the gripper shaft has its purpose at least in the area of the gripper support attachment a flattening on which the gripper pads when mounting the Gripper pads are attached to be linearly displaceable so that manufacturing tolerances are eliminated can be.
  • the problem with the adjustment of the gripper pads is that all clamping points of the gripper pads arranged next to each other and respective gripper fingers should lie on a common clamping point line, so that the sheet to be transported can be gripped evenly without waves form.
  • the invention is therefore based on the object, an adjustment for Gripper element of a gripper to create a deviation of the clamping points from the common ideal line minimized.
  • the torsional and bending stiffness of the shaft does not have to be cut out Assembly of the gripper pad can be reduced.
  • a fastening surface of the gripper pad has a concave curvature whose radius of curvature is smaller than the radius of the Gripper shaft.
  • the mounting surfaces can have a high roughness, whereby the Clamping fit on the shaft is improved. An unwanted loosening of the gripper pad from this prevents the gripper shaft.
  • Other designs and features of Invention are contained in the subclaims.
  • a sheet-fed rotary printing machine has, among other things, a so-called reversing drum, which transports the sheet to be printed or already printed in face-to-face printing, i.e. the sheet is taken over by a gripper device on the front edge by means of provided gripper devices and transferred to a gripper device of a downstream cylinder at the front edge as also transported in reverse printing, ie the sheets are taken from the upstream cylinder at the rear edge and turned over to the subsequent cylinder with the rear edge first.
  • a so-called reversing drum which transports the sheet to be printed or already printed in face-to-face printing, i.e. the sheet is taken over by a gripper device on the front edge by means of provided gripper devices and transferred to a gripper device of a downstream cylinder at the front edge as also transported in reverse printing, ie the sheets are taken from the upstream cylinder at the rear edge and turned over to the subsequent cylinder with the rear edge first.
  • a so-called pliers gripper 1 is provided for this.
  • the pliers gripper 1 has a first pair of pliers 2, which serves as a gripper pad and one with the gripper support interacting pliers 3, which act as gripper fingers is trained.
  • the gripper pads 2 Distributed over the axial length of the transport or turning drum are from each other spaced a larger number, e.g. B. 20 pliers 1 arranged.
  • the gripper pads 2 firmly on a common gripper shaft 4 and the gripper fingers 3 are pivotally mounted on a common gripper tube 6.
  • the gripper fingers 3 are each by means of a stop 7 on a compression spring 8 on a Gripper tube 6 arranged abutment 9 supported.
  • the gripper pads 2 have each have a bore 11 at one end facing away from the gripper support tip 17; which is slightly larger in diameter than a fastening screw 12 for the Gripper pad 2, so that an adjustment of the gripper pad 2, in particular during the assembly with respect to the gripper shaft 4 is made possible.
  • this has a ball seat 11a, in which to compensate for the position of the fastening screw 12 and the gripper pad 2 Ball disc 10 is arranged.
  • the gripper pad 2 has a concave, rough, z. B. sandblasted Seat 13, which is adapted to the curvature 14 of the gripper shaft diameter is.
  • the curvature of the seat surface 13 preferably has a smaller radius r, than the radius R of the gripper shaft diameter.
  • All gripper pads 2 are set on the radius R about the axis 16 of the gripper shaft 4.
  • the axis 16 forms a pivot point S 1 for the circumferential orientation of the gripper pad 2.
  • all the gripper pad tips 17 arranged axially next to one another should be on a common clamping point line 18 parallel to the gripper shaft 4 or Axis 16 lie.
  • a second embodiment according to FIG. 2 it is provided to provide the gripper support 2 at its end facing away from the gripper support tip 17 with two supports 19, 21 which in the embodiment are supported on a flat support surface 22 of the gripper shaft 4.
  • the support surface can also have a curvature without impairing its function.
  • the fastening screw 12 sits approximately centrally between the two supports 19, 21 in a bore and braces the gripper support 2 with the gripper shaft 4. When the fastening screw 12 is tightened beyond a certain torque, the gripper support tip 17 swivels about a pivot point S 2 which is on or within the periphery of the gripper shaft 4.
  • the gripper support 2 is designed as a rocker around a first support 26.
  • An adjusting screw 27 arranged at the end of the gripper support 2 pivots the gripper support 2 about a pivot point S 3 . This lies within the periphery of the gripper shaft 4.
  • one of the supports 19; 21 is designed as a spring element 28; 29.
  • the gripper support 2 is thus set against the spring element 28 about a pivot point S 4 .
  • the gripper support 2 is set against the spring element 29 about a pivot point S 5 .
  • the pivot points S 4 and S 5 lie within the periphery of the gripper shaft 4.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

The gripper element (2) has a swivel point(S1) on which it is swivel mounted for adjustment. The gripper element has a concave seating surface (13) possessing a radius (r) matching, and smaller than, the radius (R) of the gripper shaft (4). The swivel point is inside or on the periphery of the gripper shaft, and is the axle (16) of the gripper shaft. The gripper element has a hole (11) through which leads a fixture (12) with clearance. A spring (8) tensions the counter-gripper element (3) and the gripper element.

Description

Die Erfindung betrifft einen Greifer an einem bogentransportierenden Zylinder einer Rotationsdruckmaschine, insbesondere einen Zangengreifer an einer Wendetrommel.The invention relates to a gripper on a sheet transporting cylinder Rotary printing machine, in particular a pliers gripper on a turning drum.

Aus der DE 24 14 998 A1 ist ein sogenannter Zangengreifer bekannt, der aus einem Greifer und einem Gegengreifer gebildet ist. Der Greifer bildet hierbei die Greiferauflage und der Gegengreifer den gegenüber der Greiferauflage verschwenkbaren Greiferfinger. Über die axiale Länge des bogentransportierenden Zylinders verteilt, sind in Abständen eine Anzahl dieser Greifer angeordnet. Die Greiferauflagen sind mit einer gemeinsamen Greiferwelle verschraubt. Zu diesem Zweck weist die Greiferwelle zumindest im Bereich der Greiferauflagenbefestigung eine Abflachung auf, aufwelcher die Greiferauflagen bei der Montage der Greiferauflagen linear verschiebbar befestigt sind, damit Fertigungstoleranzen beseitigt werden können. Bei der Einstellung der Greiferauflagen liegt das Problem darin, daß sämtliche Klemmpunkte der nebeneinander angeordneten Greiferauflagen und jeweiligen Greiferfingern aufeiner gemeinsamen Klemmpunktlinie liegen sollen, damit der zu transportierende Bogen gleichmäßig ergriffen werden kann, ohne Wellen zu bilden.From DE 24 14 998 A1 a so-called pliers gripper is known which consists of a Gripper and a counter-gripper is formed. The gripper forms the Gripper support and the counter gripper opposite the gripper support swiveling gripper fingers. Over the axial length of the sheet transporting Distributed cylinders, a number of these grippers are arranged at intervals. The Gripper pads are screwed to a common gripper shaft. To this The gripper shaft has its purpose at least in the area of the gripper support attachment a flattening on which the gripper pads when mounting the Gripper pads are attached to be linearly displaceable so that manufacturing tolerances are eliminated can be. The problem with the adjustment of the gripper pads is that all clamping points of the gripper pads arranged next to each other and respective gripper fingers should lie on a common clamping point line, so that the sheet to be transported can be gripped evenly without waves form.

Durch eine Linearverschiebung der Greiferauflagen, wie bei der DE 24 14 998 A1 ist jedoch eine gemeinsame Linie von Klemmpunkten für alle nebeneinander angeordneten Greifereinrichtungen nur schwer einstellbar, so daß kleine Toleranzen hingenommen werden müssen. Insbesondere bei Zangengreifern, die die Bogen sowohl in Schöndruckstellung als auch in der um mehr als 180° dazu versetzten Widerdruckstellung transportieren, verdoppeln sich die Abweichungen der Klemmpunkte von der gemeinsamen Linie der Klemmpunkte (Ideallinie). By a linear displacement of the gripper pads, as with the However, DE 24 14 998 A1 is a common line of clamping points for everyone adjacent gripper devices are difficult to adjust, so that small Tolerances have to be accepted. Especially with pliers grippers that Offset sheet both in the face-to-face position and in the position by more than 180 ° Transport back pressure position, the deviations of the double Clamping points from the common line of the clamping points (ideal line).

Der Erfindung liegt daher die Aufgabe zugrunde, eine Einstellmöglichkeit für ein Greiferelement eines Greifers zu schaffen, die eine Abweichung der Klemmpunkte von der gemeinsamen Ideallinie minimiert.The invention is therefore based on the object, an adjustment for Gripper element of a gripper to create a deviation of the clamping points from the common ideal line minimized.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved by the features of claim 1.

Es ist bei der Erfindung von Vorteil, daß die Übernahme- und Übergabequalität der zu transportierenden Bogen in Schön- und in Widerdruckstellung verbessert werden kann. Ein weiterer Vorteil liegt darin, daß die Montagezeiten durch eine einfachere Justage der Greiferelemente erheblich verkürzt werden können.It is advantageous in the invention that the takeover and handover quality of the transporting sheet can be improved in the perfect and in the opposing position. Another advantage is that the assembly times by a simple adjustment of the Gripper elements can be shortened considerably.

Die Torsions- und Biegesteifigkeit der Welle muß nicht durch Aussparungen zur Montage der Greiferauflage vermindert werden.The torsional and bending stiffness of the shaft does not have to be cut out Assembly of the gripper pad can be reduced.

Bei einem bevorzugten Ausführungsbeispiel liegt ein Schwenkpunkt für die Greiferelemente aufder Achse der Greiferwelle. Durch diese Maßnahme können die Klemmpunkte der Greifereinrichtung aufeiner gemeinsamen Ideallinie eingestellt werden.In a preferred embodiment, there is a pivot point for the Gripper elements on the axis of the gripper shaft. Through this measure, the Clamping points of the gripper device set on a common ideal line become.

Bei einer vorteilhaften Ausgestaltung weist eine Befestigungsfläche der Greiferauflage eine konkave Krümmung auf, deren Krümmungsradius kleiner ist als der Radius der Greiferwelle. Durch diese Maßnahme wird vermieden, daß die Greiferfauflage beim Befestigen an der Greiferwelle eine Schwenkung, z. b. in Schraubrichtung erfährt, d. h. daß die Klemmlinie einer Greiferauflage nach dem Anziehen der Schraube ohne weitere Einstellmaßnahmen parallel zur Greiferwelle bzw. Achse ausgerichtet ist.In an advantageous embodiment, a fastening surface of the gripper pad has a concave curvature whose radius of curvature is smaller than the radius of the Gripper shaft. This measure avoids that the gripper pad when Attach a swivel to the gripper shaft, e.g. b. experienced in the screwing direction, d. H. that the clamping line of a gripper pad after tightening the screw without further Adjustment measures are aligned parallel to the gripper shaft or axis.

Die Befestigungsflächen können eine hohe Rauhigkeit aufweisen, wodurch der Klemmsitz aufder Welle verbessert wird. Ein ungewolltes Lösen der Greiferauflage von der Greiferwelle wird dadurch verhindert. Weitere Ausführungen und Merkmale der Erfindung sind in den Unteransprüchen enthalten.The mounting surfaces can have a high roughness, whereby the Clamping fit on the shaft is improved. An unwanted loosening of the gripper pad from this prevents the gripper shaft. Other designs and features of Invention are contained in the subclaims.

Verschiedene Ausführungsbeispiele sind in den Zeichnungen dargestellt und werden im folgenden beschrieben.Various embodiments are shown in the drawings and are in described below.

Es zeigen:

Figur 1
eine schematische Darstellung des erfindungsgemäßen Greifers im Schnitt,
Figur 2
ein zweites Ausführungsbeispiel,
Figur 3
ein drittes Ausführungsbeispiel,
Figur 4
ein viertes Ausführungsbeispiel,
Figur 5
ein fünftes Ausführungsbeispiel.
Show it:
Figure 1
1 shows a schematic representation of the gripper according to the invention in section,
Figure 2
a second embodiment,
Figure 3
a third embodiment,
Figure 4
a fourth embodiment,
Figure 5
a fifth embodiment.

Eine Bogenrotationsdruckmaschine weist u. a. eine sogenannte Wendetrommel auf, die den zu bedruckenden oder bereits bedruckten Bogen sowohl im Schöndruck transportiert, d. h. der Bogen wird mittels vorgesehener Greifereinrichtungen an der Vorderkante von einem vorgeordneten Zylinder übernommen und an der Vorderkante an eine Greifereinrichtung eines nachgeordneten Zylinders übergeben, als auch im Widerdruck transportiert,
d. h. die Bogen werden vom vorgeordneten Zylinder an der Hinterkante übernommen und gewendet an den nachfolgenden Zylinder mit der Hinterkante zuerst übergeben. A sheet-fed rotary printing machine has, among other things, a so-called reversing drum, which transports the sheet to be printed or already printed in face-to-face printing, i.e. the sheet is taken over by a gripper device on the front edge by means of provided gripper devices and transferred to a gripper device of a downstream cylinder at the front edge as also transported in reverse printing,
ie the sheets are taken from the upstream cylinder at the rear edge and turned over to the subsequent cylinder with the rear edge first.

Im ersten Ausführungsbeispiel ist dafür ein sogenannter Zangengreifer 1 vorgesehen. Der Zangengreifer 1 weist eine erste Zange 2 auf, die als Greiferauflage dient und eine mit der Greiferauflage zusammenwirkende Zange 3 auf, die als Greiferfinger ausgebildet ist.In the first embodiment, a so-called pliers gripper 1 is provided for this. The pliers gripper 1 has a first pair of pliers 2, which serves as a gripper pad and one with the gripper support interacting pliers 3, which act as gripper fingers is trained.

Über die axiale Länge der Transport- oder Wendetrommel verteilt, sind voneinander beabstandet eine größere Anzahl, z. B. 20 Zangengreifer 1 angeordnet. Hierbei sitzen die Greiferauflagen 2 fest aufeiner gemeinsamen Greiferwelle 4 und die Greiferfinger 3 sitzen schwenkbar gelagert aufeinem gemeinsamen Greiferrohr 6. Die Greiferfinger 3 sind jeweils mittels eines Anschlages 7 über eine Druckfeder 8 an einem fest am Greiferrohr 6 angeordneten Widerlager 9 abgestützt. Die Greiferauflagen 2 weisen jeweils an einem der Greiferauflagenspitze 17 abgewandten Ende eine Bohrung 11 auf; die im Durchmesser etwas größer ist, als eine Befestigungsschraube 12 für die Greiferauflage 2, so daß eine Einstellung der Greiferauflage 2, insbesondere während der Montage bezüglich der Greiferwelle 4 ermöglicht wird.Distributed over the axial length of the transport or turning drum are from each other spaced a larger number, e.g. B. 20 pliers 1 arranged. Sit here the gripper pads 2 firmly on a common gripper shaft 4 and the gripper fingers 3 are pivotally mounted on a common gripper tube 6. The gripper fingers 3 are each by means of a stop 7 on a compression spring 8 on a Gripper tube 6 arranged abutment 9 supported. The gripper pads 2 have each have a bore 11 at one end facing away from the gripper support tip 17; which is slightly larger in diameter than a fastening screw 12 for the Gripper pad 2, so that an adjustment of the gripper pad 2, in particular during the assembly with respect to the gripper shaft 4 is made possible.

An einem oberen Ende der Bohrung 11 weist diese einen Kugelsitz 11a auf, in welchem zum Lageausgleich von Befestigungsschraube 12 und Greiferauflage 2 eine Kugelscheibe 10 angeordnet ist.At an upper end of the bore 11, this has a ball seat 11a, in which to compensate for the position of the fastening screw 12 and the gripper pad 2 Ball disc 10 is arranged.

Die Greiferauflage 2 weist eine konkav geformte, rauhe, z. B. sandgestrahlte Sitzfläche 13 auf, welche der Krümmung 14 des Greiferwellendurchmessers angepaßt ist. Vorzugsweise weist die Krümmung der Sitzfläche 13 einen kleineren Radius r auf, als der Radius R des Greiferwellendurchmessers. Durch diese Maßnahme sitzt die Greiferauflage 2 bereits bei der Montage im unbefestigten Zustand mit einer zweifachen Linienberührung parallel zur Achse 16 auf der Greiferwelle 4 auf Eine Ausrichtung der Greiferfauflage 2 braucht nur noch in axialer Richtung und in Umfangsrichtung der Greiferwelle 4 vorgenommen zu werden. Beim Festziehen der Befestigungsschraube 12 wird die Sitzfläche 13 unter Spannung an den Umfang der Greiferwelle 4 angepreßt. Ein Schrägstellen der Greiferauflagen 2 beim Festschrauben, z. B. durch das aufgebrachte Drehmoment, wird hierbei erfindungsgemäß vermieden.The gripper pad 2 has a concave, rough, z. B. sandblasted Seat 13, which is adapted to the curvature 14 of the gripper shaft diameter is. The curvature of the seat surface 13 preferably has a smaller radius r, than the radius R of the gripper shaft diameter. Through this measure, the Gripper pad 2 with a double already when mounting in the unsecured state Line contact parallel to axis 16 on the gripper shaft 4 on an orientation of the Gripper support 2 only needs in the axial direction and in the circumferential direction Gripper shaft 4 to be made. When tightening the fastening screw 12 the seat 13 is pressed under tension on the circumference of the gripper shaft 4. On Tilting the gripper pads 2 when screwing down, e.g. B. by the applied Torque is avoided according to the invention.

Das Einstellen sämtlicher Greiferauflagen 2 erfolgt aufdem Radius R um die Achse 16 der Greiferwelle 4. Hierbei bildet die Achse 16 einen Schwenkpunkt S1 für die Umfangsausrichtung der Greiferauflage 2. Idealerweise sollen sämtliche axial nebeneinander angeordneten Greiferauflagenspitzen 17 aufeiner gemeinsamen Klemmpunktlinie 18 parallel zur Greiferwelle 4 bzw. Achse 16 liegen.All gripper pads 2 are set on the radius R about the axis 16 of the gripper shaft 4. Here, the axis 16 forms a pivot point S 1 for the circumferential orientation of the gripper pad 2. Ideally, all the gripper pad tips 17 arranged axially next to one another should be on a common clamping point line 18 parallel to the gripper shaft 4 or Axis 16 lie.

Bei einem zweiten Ausführungsbeispiel gemäß Figur 2 ist es vorgesehen, die Greiferauflage 2 an ihrem der Greiferauflagenspitze 17 abgewandten Ende mit zwei Stützen 19,21 zu versehen, die sich im Ausführungsbeispiel aufeiner ebenen Stützfläche 22 der Greiferwelle 4 abstützen. Die Stützfläche kann ohne Beeinträchtigung der Funktion jedoch auch eine Krümmung aufweisen. Die Befestigungsschraube 12 sitzt etwa mittig zwischen den beiden Stützen 19,21 in einer Bohrung und verspannt die Greiferauflage 2 mit der Greiferwelle 4. Beim Festziehen der Befestigungsschraube 12 über ein bestimmtes Drehmoment hinaus schwenkt die Greiferauflagenspitze 17 um einen Schwenkpunkt S2, der auf oder innerhalb der Peripherie der Greiferwelle 4 liegt.In a second embodiment according to FIG. 2, it is provided to provide the gripper support 2 at its end facing away from the gripper support tip 17 with two supports 19, 21 which in the embodiment are supported on a flat support surface 22 of the gripper shaft 4. However, the support surface can also have a curvature without impairing its function. The fastening screw 12 sits approximately centrally between the two supports 19, 21 in a bore and braces the gripper support 2 with the gripper shaft 4. When the fastening screw 12 is tightened beyond a certain torque, the gripper support tip 17 swivels about a pivot point S 2 which is on or within the periphery of the gripper shaft 4.

Bei einem dritten Ausführungsbeispiel gemäß Figur 3 ist es vorgesehen, die Greiferauflage 2 als Wippe um eine erste Stütze 26 auszubilden. Ein am Ende der Greiferauflage 2 angeordnete Einstellschraube 27 schwenkt die Greiferauflage 2 um einen Schwenkpunkt S3. Dieser liegt innerhalb der Peripherie der Greiferwelle 4.In a third exemplary embodiment according to FIG. 3, it is provided that the gripper support 2 is designed as a rocker around a first support 26. An adjusting screw 27 arranged at the end of the gripper support 2 pivots the gripper support 2 about a pivot point S 3 . This lies within the periphery of the gripper shaft 4.

Bei weiteren Ausführungsbeispielen gemäß Figur 4 und 5 ist es vorgesehen, eine der Stützen 19;21 als Federelement 28;29 auszubilden. Mit der Ausführung gemäß Figur 4 ergibt sich somit eine Einstellung der Greiferauflage 2 gegen das Federelement 28 um einen Schwenkpunkt S4. In further exemplary embodiments according to FIGS. 4 and 5, provision is made for one of the supports 19; 21 to be designed as a spring element 28; 29. With the embodiment according to FIG. 4, the gripper support 2 is thus set against the spring element 28 about a pivot point S 4 .

Mit der Ausführung gemäß Figur 5 ergibt sich eine Einstellung der Greiferauflage 2 gegen das Federelement 29 um einen Schwenkpunkt S5. Die Schwenkpunkte S4 und S5 liegen dabei innerhalb der Peripherie der Greiferwelle 4.With the embodiment according to FIG. 5, the gripper support 2 is set against the spring element 29 about a pivot point S 5 . The pivot points S 4 and S 5 lie within the periphery of the gripper shaft 4.

Zum Lageausgleich von Befestigungsschraube 12 und Greiferauflage 2 ist es auch bei den Ausführungen gemäß der Figur 2 bis 5 vorgesehen, eine Kugelscheibe 10 zwischen dem Kopf der Befestigungsschraube 12 und der Greiferauflage 2 anzuordnen. To compensate for the position of the fastening screw 12 and the gripper pad 2, it is also at 2 to 5 provided a spherical washer 10 between to arrange the head of the fastening screw 12 and the gripper pad 2.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
ZangengreiferPlier gripper
22nd
GreiferauflageGripper pad
33rd
GreiferGripper
44th
GreiferwelleGripper shaft
55
66
GreiferrohrGripper tube
77
Anschlag (3)Stop (3)
88th
DruckfederCompression spring
99
Widerlager (6)Abutment (6)
1010th
KugelscheibeSpherical disc
1111
Bohrung (2)Bore (2)
11a11a
KugelsitzBall seat
1212th
BefestigungsschraubeFastening screw
1313
Sitzfläche (2)Seat (2)
1414
1515
1616
Achse (4)Axle (4)
1717th
Greiferauflagenspitze (Klemmpunkt)Gripper support tip (clamping point)
1818th
KlemmpunktlinieTerminal point line
1919th
Stützesupport
2020th
2121
Stützesupport
2222
StützflächeSupport surface
2323
2424th
2525th
2626
Stützesupport
2727
EinstellschraubeAdjusting screw
2828
DruckfederCompression spring
2929
DruckfederCompression spring
3030th
S1 S 1
SchwenkpunktPivot point
S2 S 2
SchwenkpunktPivot point
S3 S 3
SchwenkpunktPivot point
S4 S 4
SchwenkpunktPivot point
S5 S 5
SchwenkpunktPivot point
rr
Radius (13)Radius (13)
RR
Radius (4)Radius (4)

Claims (8)

Greifer für einen Zylinder oder eine Trommel einer Bogenrotationsdruckmaschine, der ein bezüglich seiner ihn tragenden Greiferwelle einstellbares Greiferelement aufweist,
dadurch gekennzeichnet, daß das Greiferelement (2) einen Schwenkpunkt (S1 ;S2; S3;S4;S5) aufweist, um welchen das Greiferelement (2) zur Einstellung verschwenkbar gelagen ist, daß das Greiferelement (2) eine konkav gekrümmte Sitzfläche (13) aufweist, dessen Radius (r) dem Radius (R) der Greiferwelle (4) angepaßt ist, daß der Radius (r) kleiner ist als der Radius (R). Gripper for a cylinder or a drum of a sheet-fed rotary printing press, which has a gripper element that is adjustable with respect to its gripper shaft that supports it,
characterized, that the gripper element (2) has a pivot point (S 1 ; S 2 ; S 3 ; S 4 ; S 5 ), around which the gripper element (2) is pivotable for adjustment, that the gripper element (2) has a concavely curved seat surface (13), the radius (r) of which is adapted to the radius (R) of the gripper shaft (4), that the radius (r) is smaller than the radius (R). Greifer nach Anspruch 1,
dadurch gekennzeichnet, daß der Schwenkpunkt (S1; S2; S3;S4;S5) innerhalb oder auf der Peripherie der Greiferwelle (4) angeordnet ist. Gripper according to claim 1,
characterized, that the pivot point (S 1 ; S 2 ; S 3 ; S 4 ; S 5 ) is arranged inside or on the periphery of the gripper shaft (4). Greifer nach Anspruch 1,
dadurch gekennzeichnet, daß der Schwenkpunkt (S1) die Achse (16) der Greiferwelle (4) ist. Gripper according to claim 1,
characterized, that the pivot point (S 1 ) is the axis (16) of the gripper shaft (4). Greifer nach Anspruch 1,
dadurch gekennzeichnet, daß das Greiferelement (2) eine Bohrung (11) aufweist, durch welche hindurch ein Befestigungsmittel (12) mit Einstellspiel geführt ist. Gripper according to claim 1,
characterized, that the gripper element (2) has a bore (11) through which a fastening means (12) with adjustment play is guided. Greifer nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Greiferelement (2) jeweils mit einem Gegengreiferelement (3) zusammenwirkt, welches schwenkbar aufeinem Greiferrohr (6) angeordnet ist, welches die Greiferwelle (4) koaxial umgibt. Gripper according to one of the preceding claims,
characterized, that the gripper element (2) interacts in each case with a counter-gripper element (3) which is pivotably arranged on a gripper tube (6) which coaxially surrounds the gripper shaft (4). Greifer nach Anspruch 5,
dadurch gekennzeichnet, daß ein Federelement (8) das Gegengreiferelement (3) und das damit zusammenwirkende Greiferelement (2) gegeneinander verspannt. Gripper according to claim 5,
characterized, that a spring element (8) braces the counter-gripper element (3) and the gripper element (2) interacting therewith. Greifer für einen Zylinder oder eine Trommel einer Bogenrotationsdruckmaschine, der ein bezüglich seiner ihn tragenden Greiferwelle einstellbares Greiferelement aufweist,
dadurch gekennzeichnet, daß das Greiferelement (2) aufeiner ebenen Sitzfläche der Greiferwelle (4) angeordnet ist und federnd um den Schwenkpunkt (S4;S5) einstellbar ist. Gripper for a cylinder or a drum of a sheet-fed rotary printing press, which has a gripper element that is adjustable with respect to its gripper shaft that supports it,
characterized, that the gripper element (2) is arranged on a flat seat surface of the gripper shaft (4) and is resiliently adjustable about the pivot point (S 4 ; S 5 ). Greifer nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Greiferelement (2) eine Greiferauflage und das Gegengreiferelement (3) ein Greiferfinger ist. Gripper according to one of the preceding claims,
characterized, that the gripper element (2) is a gripper pad and the counter-gripper element (3) is a gripper finger.
EP99111077A 1998-07-06 1999-06-17 Gripper for a sheet transfer cylinder or drum of a rotary printing machine Expired - Lifetime EP0970808B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19830080 1998-07-06
DE19830080 1998-07-06

Publications (2)

Publication Number Publication Date
EP0970808A1 true EP0970808A1 (en) 2000-01-12
EP0970808B1 EP0970808B1 (en) 2003-09-10

Family

ID=7873089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111077A Expired - Lifetime EP0970808B1 (en) 1998-07-06 1999-06-17 Gripper for a sheet transfer cylinder or drum of a rotary printing machine

Country Status (4)

Country Link
US (1) US6263794B1 (en)
EP (1) EP0970808B1 (en)
JP (1) JP4584378B2 (en)
DE (2) DE19927695A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10235895B4 (en) * 2001-09-21 2019-01-24 Heidelberger Druckmaschinen Ag Perfecting press
US7849794B2 (en) * 2005-03-08 2010-12-14 Heidelberger Druckmaschinen Ag Device for transporting sheets in straight printing or perfecting operation by way of tongs grippers
CN101024328B (en) * 2006-02-20 2010-12-15 海德堡印刷机械股份公司 Sheet-transporting apparatus
US20080092760A1 (en) * 2006-10-19 2008-04-24 Heidelberger Druckmaschinen Ag Device and Method for Driving a Reversing Gripper in a Sheet-Processing Machine, Reversing Drum and Printing Press
DE102008056239A1 (en) * 2007-11-29 2009-06-04 Heidelberger Druckmaschinen Ag Gripper for conveying a sheet by a printing machine
DE102008058069B4 (en) 2007-12-14 2020-07-23 Heidelberger Druckmaschinen Ag Transfer drum between printing units of a sheet-fed printing press
DE102008031275A1 (en) 2008-07-02 2010-01-07 Koenig & Bauer Aktiengesellschaft Device for lateral adjustment of print substrate sheet in sheet fed printing press, has gripper finger shaft and gripper support shaft that are synchronously adjustable in axial direction
DE102012013635B4 (en) * 2011-08-01 2022-11-10 Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg Gripper arrangement for conveying a sheet
DE102015209696B4 (en) * 2015-05-27 2021-04-08 Koenig & Bauer Ag Gripper system and method for producing a gripper system
DE102022103491A1 (en) 2022-02-15 2023-08-17 Koenig & Bauer Ag Gripper system for a rotary conveyor

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DE488948C (en) * 1928-09-02 1930-01-11 Albert Neumann Device for opening the gripper of a printing cylinder when it is stationary
DE2414998A1 (en) 1974-03-28 1975-10-09 Heidelberger Druckmasch Ag TURNING DEVICE FOR A SHEET PRESSURE AND PRESSURE MACHINE WITH PLIERS
DE3623405A1 (en) * 1986-07-11 1988-02-04 Miller Johannisberg Druckmasch BOW GRIPPER FOR BOW-PROCESSING MACHINES
DE4330610A1 (en) * 1993-09-09 1995-03-16 Roland Man Druckmasch Sheet gripper for a sheet processing machine

Also Published As

Publication number Publication date
JP2000037850A (en) 2000-02-08
DE19927695A1 (en) 2000-01-13
JP4584378B2 (en) 2010-11-17
DE59906926D1 (en) 2003-10-16
EP0970808B1 (en) 2003-09-10
US6263794B1 (en) 2001-07-24

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