EP0250963A2 - Driving device for the front grippers of a printing machine - Google Patents

Driving device for the front grippers of a printing machine Download PDF

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Publication number
EP0250963A2
EP0250963A2 EP87108407A EP87108407A EP0250963A2 EP 0250963 A2 EP0250963 A2 EP 0250963A2 EP 87108407 A EP87108407 A EP 87108407A EP 87108407 A EP87108407 A EP 87108407A EP 0250963 A2 EP0250963 A2 EP 0250963A2
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EP
European Patent Office
Prior art keywords
gripper
cam
shaft
machine
eccentric shaft
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
EP87108407A
Other languages
German (de)
French (fr)
Other versions
EP0250963B1 (en
EP0250963A3 (en
Inventor
Hans Wilhelm Dr. Ing. Leyendecker
Paul Abendroth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT87108407T priority Critical patent/ATE66182T1/en
Publication of EP0250963A2 publication Critical patent/EP0250963A2/en
Publication of EP0250963A3 publication Critical patent/EP0250963A3/en
Application granted granted Critical
Publication of EP0250963B1 publication Critical patent/EP0250963B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers

Definitions

  • the invention relates to a device for driving a vibrating pre-gripper of a printing press according to the preamble of the first claim.
  • Such devices are well known and e.g. described in DE-PS 2 220 343.
  • the disadvantage is that to control the movement of the pre-gripper shaft non-positively interacting drive parts are provided. During operation, a lever arm is constantly pressed against a roller by means of a cam control by means of a spring. The components involved in the adhesion are inevitably very heavily stressed by the large inertial forces caused by the high angular velocities and accelerations of the pre-gripper.
  • a further disadvantage is that drive and output shafts are used to control the movement of the pre-gripper shaft, the central axes of which are arranged far apart, which likewise results in large transmission link lengths and, as a result, also high inertial forces.
  • the invention has for its object to provide in a device of the type mentioned positively interacting drive parts and a coaxial arrangement of the input and output shaft for initiating the additional movement, which is superimposed on the continuous rotary movement of the excavating eccentric eccentric.
  • Fig. 1 shows the kinematic diagram of a four-link kinematic chain, consisting of drive link 1, pre-gripper level 2, control coupling 3 and rocker arm 4, which generate the required movement 24 of the pre-gripper level 2 in that the drive link 1 mounted in the side stand 5 is driven at a constant angular velocity and the rocker arm 4 pulls the cam rollers 6, 7, 8 arranged on the control coupling 3 via a triple screw in the stand 5, assigned cam plates 9, 10, 11.
  • the curves discs 9, 10, 11 are designed such that the required movement 24 of the pre-gripper plane 2 is achieved.
  • FIGS. 2 to 4 show different designs, which differ in the arrangement of the cam disks 26, 27 and an internally rolled cam disk triple.
  • 2 and 4 show a possible embodiment with three externally rolled cam disks 9, 10, 11 and
  • FIG. 3 shows an embodiment with two externally rolled cam disks 26, 27 and an internally rolled cam disk 12.
  • the second embodiment has the advantage of a smaller overall height. To simplify matters, the same components are provided with the same reference symbols in the two versions.
  • a pre-gripper shaft 16 is rotatably mounted on an eccentric shaft 14, which is rotatably mounted in a housing shell 15 on the side stand 5.
  • the control coupling 3 is rotatably arranged on 15 rolling elements 25. This is connected at the articulation point 17 to the relatively short rocker arm 4, which is articulated off-center in a gear 19 at the articulation point 18.
  • Gear 19 and eccentric shaft 14 form the drive member 1, the central axes of which are coaxial to one another.
  • the gear wheel 19 is in constant engagement with a drive wheel 21 rotating with the pressure cylinder 20.
  • the movement 24 of the pre-gripper shaft 16 is controlled by superimposing a circular movement - the radius of the circular path being determined by the size of the eccentricity, ie the distance of the central axis of the gear 19 from the central axis of the pre-gripper shaft 16 - by means of a fixed standing cam triple 9, 10, 11 or 12, 26, 27 controlled general coupling movement, whereby the pre-gripper shaft 16 is informed of a pivoting movement as an additional movement.
  • the required movement 24 of the pre-gripper shaft 16 is shown in dashed lines in FIG. 1 as the movement of the pre-gripper plane 2.
  • the chronological sequence ensures that the grippers 22 are at rest when the sheet is transferred from the feed table 23, the sheet is transferred to the grippers of the printing cylinder 20 (not shown) at the same speed, and an end of the return movement, in which the grippers 22 extend from the printing cylinder 20 into Rest position removed and returned gradually to the starting position for the takeover of a new arch.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to such a device, in which an eccentric shaft is provided which is mounted in a rotatable manner in the side frame of the machine and accommodates in a rotatable manner a pre-gripper shaft, which is under the influence of a cam, the eccentric shaft being firmly attached to a gearwheel which is in constant engagement with a drive gearwheel rotating with the printing cylinder. <??>In order to provide, in a device of the described nature, interlocking and consequently co-operating drive parts and a co-axial arrangement of the drive shafts and driven shafts to introduce the additional movement, which is superimposed upon the continuous rotation of the pre-gripper cam as it lifts out, the eccentric shaft (14) is rotatably mounted in a housing shell (15) on the side frame (5) and in the opposite side-frame of the machine. The pre-gripper shaft (16) is under the influence of triple cam discs (9, 10, 11), attached to the side frame (5) of the machine, via cam followers (6, 7, 8), which are attached to a connecting rod (3), which bears in a rotatable manner on the gripper shaft (16). At a hinge point (17) on the connecting rod (3) is articulated a trailing lever (4), which is articulated at a further hinge point (18), eccentric in a gearwheel (19). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Antrieb eines schwingenden Vorgreifers einer Druckmaschine nach dem Oberbe­griff des ersten Patentanspruches.The invention relates to a device for driving a vibrating pre-gripper of a printing press according to the preamble of the first claim.

Derartige Vorrichtungen sind allgemein bekannt und z.B. in der DE-PS 2 220 343 beschrieben. Nachteilig ist, daß zur Steuerung der Bewegung der Vorgreiferwelle kraftschlüssig zusammenwirkende Antriebsteile vorgesehen sind. Während des Betriebes wird ein Hebelarm über eine Kurvensteuerung mittels einer Feder ständig gegen eine Rolle angepreßt. Die an dem Kraftschluß beteiligten Bauelemente werden durch die infolge der hohen Winkelgeschwindigkeiten und Beschleunigungen des Vorgreifers hervorgerufenen großen Massenkräfte zwangsweise sehr stark belastet. Von Nachteil ist ferner, daß zur Steue­rung der Bewegung der Vorgreiferwelle An- und Abtriebswellen verwendet werden, deren Mittelachsen weit auseinander liegend angeordnet sind, wodurch ebenfalls große Getriebegliedlängen und daraus resultierend auch hohe Massenkräfte entste­hen. Letzteres trifft auch auf einen kurventriebfreien An­trieb eines schwingenden Vorgreifers zu, wie er aus der EP-A 0 006 402 bekannt geworden ist. Außerdem ist bei derartigen Vorrichtungen keine komplette Vormontage des Vorgreifers möglich. Ebenso werden Endmontage und die Austauschbarkeit erschwert.Such devices are well known and e.g. described in DE-PS 2 220 343. The disadvantage is that to control the movement of the pre-gripper shaft non-positively interacting drive parts are provided. During operation, a lever arm is constantly pressed against a roller by means of a cam control by means of a spring. The components involved in the adhesion are inevitably very heavily stressed by the large inertial forces caused by the high angular velocities and accelerations of the pre-gripper. A further disadvantage is that drive and output shafts are used to control the movement of the pre-gripper shaft, the central axes of which are arranged far apart, which likewise results in large transmission link lengths and, as a result, also high inertial forces. The latter also applies to a drive of a vibrating pre-gripper that is free of cam drives, as has become known from EP-A 0 006 402. In addition, complete pre-assembly of the pre-gripper is not possible with such devices. Final assembly and interchangeability are also made more difficult.

Der Erfindung liegt die Aufgabe zugrunde, bei einer Vor­richtung genannter Gattung formschlüssig zusammenwirkende Antriebsteile und eine koaxiale Anordnung der An- und Abtriebs­welle zur Einleitung der Zusatzbewegung, welche der fortlau­fenden Drehbewegung des aushebenden Vorgreiferexzenters über­lagert wird, vorzusehen.The invention has for its object to provide in a device of the type mentioned positively interacting drive parts and a coaxial arrangement of the input and output shaft for initiating the additional movement, which is superimposed on the continuous rotary movement of the excavating eccentric eccentric.

Gelöst wird diese Aufgabe gemäß dem Kennzeichen des ersten Patentanspruches. Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen, aus der Zeichnung und der Beschreibung. Der Vorteil der Erfindung besteht insbesondere darin, daß die Massenkräfte minimiert werden. Zugleich wird die Vormontage, die Endmontage sowie die Austauschbarkeit der Vorrichtung verbessert.This object is achieved according to the characterizing part of the first claim. Further developments of the invention result from the subclaims, from the drawing and from the description. The advantage of the invention is in particular that the mass forces are minimized. At the same time, pre-assembly, final assembly and interchangeability of the device are improved.

Die Erfindung soll nachstehend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert werden.The invention will be explained below with reference to exemplary embodiments shown in the drawing.

Es zeigt:

  • Fig. 1 das kinematische Schema der Vor­richtung,
  • Fig. 2 einen Schnitt durch eine Ausführung des Vorgreifers,
  • Fig. 3 einen Schnitt durch eine weitere Aus­führung des Vorgreifers,
  • Fig. 4 eine Ansicht der Steuerkoppel 3, schematisch.
It shows:
  • 1 shows the kinematic diagram of the device,
  • 2 shows a section through an embodiment of the pre-gripper,
  • 3 shows a section through a further embodiment of the pre-gripper,
  • Fig. 4 is a view of the control coupling 3, schematically.

Fig. 1 zeigt das kinematische Schema einer viergliedrigen kinematischen Kette, bestehend aus Antriebsglied 1, Vorgrei­ferebene 2, Steuerkoppel 3 und Schlepphebel 4, welche die geforderte Bewegung 24 der Vorgreiferebene 2 dadurch erzeu­gen, daß das im Seitenständer 5 gelagerte Antriebsglied 1 mit konstanter Winkelgeschwindigkeit angetrieben wird und der Schlepphebel 4 die auf der Steuerkoppel 3 angeordneten Kurven­rollen 6, 7, 8 über ein Tripel im Ständer 5 fest verschraub­ter, zugeordneter Kurvenscheiben 9, 10, 11 zieht. Die Kurven­ scheiben 9, 10, 11 sind derart gestaltet, daß die geforderte Bewegung 24 der Vorgreiferebene 2 erreicht wird.Fig. 1 shows the kinematic diagram of a four-link kinematic chain, consisting of drive link 1, pre-gripper level 2, control coupling 3 and rocker arm 4, which generate the required movement 24 of the pre-gripper level 2 in that the drive link 1 mounted in the side stand 5 is driven at a constant angular velocity and the rocker arm 4 pulls the cam rollers 6, 7, 8 arranged on the control coupling 3 via a triple screw in the stand 5, assigned cam plates 9, 10, 11. The curves discs 9, 10, 11 are designed such that the required movement 24 of the pre-gripper plane 2 is achieved.

Die Figuren 2 bis 4 zeigen verschiedene konstruktive Ausfüh­rungen, welche sich durch die Anordnung des Kurven­scheiben 26, 27 und einer innenberollten Kurvenscheiben­tripels unterscheiden. Fig. 2 und 4 zeigen eine mögliche Ausführung mit drei außenberollten Kurvenscheiben 9, 10, 11 und Fig. 3 zeigt eine Ausführung mit zwei außenberollten Kurven­scheiben 26, 27 und einer innenberollten Kurvenscheibe 12. Die zweite Ausführung hat den Vorteil einer geringeren Bau­höhe. Zur Vereinfachung sind gleiche Bauteile in den beiden Ausführungen mit gleichen Bezugszeichen versehen.FIGS. 2 to 4 show different designs, which differ in the arrangement of the cam disks 26, 27 and an internally rolled cam disk triple. 2 and 4 show a possible embodiment with three externally rolled cam disks 9, 10, 11 and FIG. 3 shows an embodiment with two externally rolled cam disks 26, 27 and an internally rolled cam disk 12. The second embodiment has the advantage of a smaller overall height. To simplify matters, the same components are provided with the same reference symbols in the two versions.

Bei beiden konstruktiven Ausführungen ist auf eine Exzenter­welle 14, die drehbar in einer Gehäuseschale 15 am Seiten­ständer 5 gelagert ist, eine Vorgreiferwelle 16 drehbar gela­gert. Auf einem Lagerkörper 13, der fest mit der Vorgreifer­welle 16 verbunden ist. ist auf 15 Wälzkörpern 25 die Steuerkoppel 3 drehbeweglich angeordnet. Diese ist im Ge­lenkpunkt 17 mit dem relativ kurzen Schlepphebel 4 verbunden, der im Gelenkpunkt 18 in einem Zahnrad 19 außermittig ange­lenkt ist. Zahnrad 19 und Exzenterwelle 14 bilden das An­triebsglied 1, wobei deren Mittelachsen koaxial 20 zueinander liegen.In both structural designs, a pre-gripper shaft 16 is rotatably mounted on an eccentric shaft 14, which is rotatably mounted in a housing shell 15 on the side stand 5. On a bearing body 13 which is fixedly connected to the pre-gripper shaft 16. the control coupling 3 is rotatably arranged on 15 rolling elements 25. This is connected at the articulation point 17 to the relatively short rocker arm 4, which is articulated off-center in a gear 19 at the articulation point 18. Gear 19 and eccentric shaft 14 form the drive member 1, the central axes of which are coaxial to one another.

Das Zahnrad 19 steht im ständigen Eingriff mit einem mit dem Druckzylinder 20 umlaufenden Antriebsrad 21.The gear wheel 19 is in constant engagement with a drive wheel 21 rotating with the pressure cylinder 20.

Die Steuerung der Bewegung 24 der Vorgreiferwelle 16 erfolgt durch die Überlagerung einer Kreisbewegung - wobei der Radius der Kreisbahn durch die Größe der Exzentrizität, d.h. der Entfernung der Mittelachse des Zahnrades 19 von der Mittelachse der Vorgreiferwelle 16 bestimmt ist - mit einer über das fest­ stehende Kurvenscheibentripel 9, 10, 11 bzw. 12, 26, 27 gesteuerten allgemeinen Koppelbewegung, wodurch der Vorgrei­ferwelle 16 als Zusatzbewegung eine Schwenkbewegung mitgeteilt wird. Die geforderte Bewegung 24 der Vorgreiferwelle 16 ist in Fig. 1 als Bewegung der Vorgreiferebene 2 gestrichelt dargestellt. Der zeitliche Ablauf gewährleistet eine Ruhelage der Greifer 22 bei der Übergabe des Bogens vom Anlagetisch 23, eine Übergabe des Bogens an die nicht dargestellten Greifer des Druckzylinders 20 bei gleicher Geschwindigkeit und eine Been­digung der Rückbewegung, bei der die Greifer 22 vom Druckzy­linder 20 bis in die Ruhelage entfernt und unter allmählicher Annäherung wieder in die Ausgangslage für die Übernahme eines neuen Bogens zurückgeführt werden.The movement 24 of the pre-gripper shaft 16 is controlled by superimposing a circular movement - the radius of the circular path being determined by the size of the eccentricity, ie the distance of the central axis of the gear 19 from the central axis of the pre-gripper shaft 16 - by means of a fixed standing cam triple 9, 10, 11 or 12, 26, 27 controlled general coupling movement, whereby the pre-gripper shaft 16 is informed of a pivoting movement as an additional movement. The required movement 24 of the pre-gripper shaft 16 is shown in dashed lines in FIG. 1 as the movement of the pre-gripper plane 2. The chronological sequence ensures that the grippers 22 are at rest when the sheet is transferred from the feed table 23, the sheet is transferred to the grippers of the printing cylinder 20 (not shown) at the same speed, and an end of the return movement, in which the grippers 22 extend from the printing cylinder 20 into Rest position removed and returned gradually to the starting position for the takeover of a new arch.

BezugszeichenlisteReference symbol list

  • 1 Antriebsglied1 drive link
  • 2 Vorgreiferebene2 pre-gripper level
  • 3 Steuerkoppel3 control coupling
  • 4 Schlepphebel4 rocker arms
  • 5 Seitenständer5 side stands
  • 6 Kurvenrolle6 cam roller
  • 7 Kurvenrolle7 cam roller
  • 8 Kurvenrolle8 cam roller
  • 9 Kurvenscheibe9 cam
  • 10 Kurvenscheibe10 cam
  • 11 Kurvenscheibe11 cam
  • 12 Kurvenscheibe12 cam
  • 13 Lagerkörper13 bearing body
  • 14 Exzenterwelle14 eccentric shaft
  • 15 Gehäuseschale15 housing shell
  • 16 Vorgreiferwelle16 pre-gripper shaft
  • 17 Gelenkpunkt17 pivot point
  • 18 Gelenkpunkt18 pivot point
  • 19 Zahnrad19 gear
  • 20 Druckzylinder20 printing cylinders
  • 21 Antriebsrad21 drive wheel
  • 22 Greifer22 grippers
  • 23 Anlegetisch23 feed table
  • 24 geforderte Bewegung24 required movement
  • 25 Wälzkörper25 rolling elements
  • 26 Kurvenscheibe26 cam
  • 27 Kurvenscheibe27 cam

Claims (3)

1.) Vorrichtung zum Antrieb eines schwingenden Vorgreifers einer Druckmaschine, bei der eine Exzenterwelle vorgese­hen ist, die im Seitenständer der Maschine drehbar gela­gert ist und eine Vorgreiferwelle drehbar aufnimmt, die von einer Kurvensteuerung beeinflußt wird, ferner mit der Exzenterwelle ein Zahnrad fest verbunden ist, das mit einem mit dem Druckzylinder umlaufenden Antriebszahnrad im ständigen Eingriff steht,
dadurch gekennzeichnet,
daß die Exzenterwelle (14) in einer Gehäuseschale (15) am Seitenständer (5) und im gegenüberliegenden Seitenständer der Maschine drehbar gelagert ist, daß die Vorgreiferwel­le (16) von einem am Ständer (5) der Maschine befestigten Tripel von Kurvenscheiben (9, 10, 11) über Kurvenrollen (6, 7, 8) beeinflußt wird, die an einer Steuerkoppel (3) angeordnet sind, welche drehbeweglich auf der Vorgreifer­welle(16) lagert und daß in einem Gelenkpunkt (17) an der Steuerkoppel (3) ein Schlepphebel (4) angelenkt ist, der in einem weiteren Gelenkpunkt (18) außermittig im Zahnrad (19) angelenkt ist.1.) Device for driving a vibrating pre-gripper of a printing press, in which an eccentric shaft is provided, which is rotatably mounted in the side stand of the machine and rotatably receives a pre-gripper shaft which is influenced by a curve control, furthermore a gear wheel is firmly connected to the eccentric shaft, which is in constant engagement with a drive gear wheel rotating with the pressure cylinder,
characterized,
that the eccentric shaft (14) is rotatably mounted in a housing shell (15) on the side stand (5) and in the opposite side stand of the machine, that the pre-gripper shaft (16) from a triple of cams (9, 10.) fixed to the stand (5) of the machine , 11) is influenced by cam rollers (6, 7, 8) which are arranged on a control coupling (3) which is rotatably supported on the pre-gripper shaft (16) and that a rocker arm in a pivot point (17) on the control coupling (3) (4) is articulated, which is articulated in a further articulation point (18) off-center in the gear (19). 2.) Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß ein Tripel von drei außenberollten Kurvenscheiben (9, 10, 11) vorgesehen ist.2.) Device according to claim 1,
characterized,
that a triple of three externally rolled cams (9, 10, 11) is provided. 3.) Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß ein Tripel von zwei außenberollten Kurvenscheiben (26, 27) und einer innenberollten Kurvenscheibe (12) vor­gesehen ist.3.) Device according to claim 1,
characterized,
that a triple of two externally rolled cam disks (26, 27) and an internally rolled cam disk (12) is provided.
EP87108407A 1986-06-26 1987-06-11 Driving device for the front grippers of a printing machine Expired - Lifetime EP0250963B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108407T ATE66182T1 (en) 1986-06-26 1987-06-11 DEVICE FOR DRIVING AN OSCILLATING TAPER OF A PRINTING PRESS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3621384 1986-06-26
DE19863621384 DE3621384A1 (en) 1986-06-26 1986-06-26 DEVICE FOR DRIVING A VIBRATING PRE-GRIPPER OF A PRINTING MACHINE

Publications (3)

Publication Number Publication Date
EP0250963A2 true EP0250963A2 (en) 1988-01-07
EP0250963A3 EP0250963A3 (en) 1989-07-05
EP0250963B1 EP0250963B1 (en) 1991-08-14

Family

ID=6303734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108407A Expired - Lifetime EP0250963B1 (en) 1986-06-26 1987-06-11 Driving device for the front grippers of a printing machine

Country Status (5)

Country Link
US (1) US4909150A (en)
EP (1) EP0250963B1 (en)
JP (1) JPS6311340A (en)
AT (1) ATE66182T1 (en)
DE (2) DE3621384A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533064C2 (en) * 1995-03-25 2000-11-23 Koenig & Bauer Ag Procedure for moving pin needles
EP0734989B1 (en) * 1995-03-25 2002-01-09 Koenig &amp; Bauer Aktiengesellschaft Apparatus for the movement of perforating needles
EP0734988B1 (en) * 1995-03-25 2001-09-26 Koenig &amp; Bauer Aktiengesellschaft Method and apparatus for the movement of perforating needles
DE19833903A1 (en) * 1998-07-28 2000-02-03 Heidelberger Druckmasch Ag Method for taking over a trailing edge of a sheet from an upstream cylinder of a sheet-fed rotary printing press
US6623000B2 (en) 2001-06-15 2003-09-23 Prim Hall Enterprises Inc. Apparatus and method for separating sheet material by means of a reciprocating disk separator
DE102005019532B4 (en) * 2005-04-27 2007-12-27 Koenig & Bauer Aktiengesellschaft Device for controlling the grippers of a pre-gripper
DE102007061556B4 (en) * 2007-12-18 2011-06-09 Kba-Metronic Aktiengesellschaft Transport cylinder, with movable gripper device and method for transporting sheets

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2220343A1 (en) * 1971-05-04 1972-11-30 Adamovske Strojirny Np Drive of an oscillating pre-gripper on printing machines
EP0006402A1 (en) * 1978-06-26 1980-01-09 Heidelberger Druckmaschinen Aktiengesellschaft Camless drive for an oscillating front gripper

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208309B (en) * 1965-02-08 1966-01-05 Planeta Veb Druckmasch Werke Vibrating system for printing machines
US3992993A (en) * 1975-03-25 1976-11-23 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Sheet transfer system for a printing machine
CS177648B1 (en) * 1975-05-29 1977-08-31
DE2557866B2 (en) * 1975-12-22 1977-11-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg ROTATING LOOP DRUM
US4132403A (en) * 1977-07-07 1979-01-02 Veb Polygraph Leipzig Kombinat Fuer Polygraphische Maschinen Und Ausruestungen Sheet transfer apparatus for printing machine
DD142694A1 (en) * 1979-04-02 1980-07-09 Guenter Weisbach ARC PRINTING MACHINE WITH A BOTTOM PRE-GRIPPER
DE3333050A1 (en) * 1983-09-14 1985-03-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach PRE-GRIP DRIVE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2220343A1 (en) * 1971-05-04 1972-11-30 Adamovske Strojirny Np Drive of an oscillating pre-gripper on printing machines
EP0006402A1 (en) * 1978-06-26 1980-01-09 Heidelberger Druckmaschinen Aktiengesellschaft Camless drive for an oscillating front gripper

Also Published As

Publication number Publication date
US4909150A (en) 1990-03-20
EP0250963B1 (en) 1991-08-14
JPS6311340A (en) 1988-01-18
ATE66182T1 (en) 1991-08-15
DE3772118D1 (en) 1991-09-19
DE3621384A1 (en) 1988-01-14
EP0250963A3 (en) 1989-07-05

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