EP0372237A2 - Device for register correction of the overprinting of sheets in a rotary sheet-fed press - Google Patents

Device for register correction of the overprinting of sheets in a rotary sheet-fed press Download PDF

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Publication number
EP0372237A2
EP0372237A2 EP89120537A EP89120537A EP0372237A2 EP 0372237 A2 EP0372237 A2 EP 0372237A2 EP 89120537 A EP89120537 A EP 89120537A EP 89120537 A EP89120537 A EP 89120537A EP 0372237 A2 EP0372237 A2 EP 0372237A2
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EP
European Patent Office
Prior art keywords
gripper bridge
sheet
gripper
register correction
stop
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
EP89120537A
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German (de)
French (fr)
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EP0372237B1 (en
EP0372237A3 (en
Inventor
Gerhard Pollich
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication date
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Publication of EP0372237A2 publication Critical patent/EP0372237A2/en
Publication of EP0372237A3 publication Critical patent/EP0372237A3/en
Application granted granted Critical
Publication of EP0372237B1 publication Critical patent/EP0372237B1/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
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position

Definitions

  • the invention relates to a device for register correction of the sheet prints or to compensate for tensioned sheets in a sheet-fed rotary printing machine by deforming the leading edge of the sheet in front of the printing unit with generic features according to the preamble of claim 1
  • the bending device engages centrally on the gripper bridge shaft of the sheet transfer cylinder, so that it bends the gripper bridge shaft in the work cycle of the machine. As a result, the leading edge of the sheet is deformed in or against the direction of rotation of the cylinder in the middle.
  • the bending device consists of a movable arrangement of a central gripper bridge shaft bearing and of a cam mechanism with pressure roller and return spring, the current rotational position of the pressure roller being adjustable by a control shaft which, according to the proposal in this document, is to be formed directly by the gripper bridge shaft.
  • Such a bending device causes relatively high costs. Above all, there is the disadvantage that the deformation of the leading edge of the sheet cannot be adjusted while the machine is running, so that the machine has to be stopped repeatedly in the set-up phase in order to make register corrections by deforming the leading edge of the sheet.
  • the US-PS 2,577,099 shows a device for register correction, in which the gripper bridge shaft is held at the ends in a sheet transfer cylinder and is also bent in the middle in or against the running direction of the sheet.
  • the gripper bridge shaft is either tubular and supported in the middle of a channel in the sheet transfer cylinder on a pair of rollers, the axes of rotation of which take up a different angular position to the gripper bridge shaft axis and the rollers of which can be pressed individually against the gripper bridge shaft by means of an eccentric mechanism, or designed as a bending rod which is directly formed by an eccentric mechanism is deformable.
  • Such a control mechanism for the bending device is also quite complex and, above all, cannot be regulated while the machine is running.
  • DE-AS 23 14 302 and DE-PS 11 75 695 devices for deforming the leading edge of the sheet for the purpose of register correction are described, in which the gripper bridge shaft is divided and the adjacent ends of the shaft parts are mounted in a movable carriage, which by means of special Members is adjustable. These devices are also expensive and cannot be adjusted during machine operation.
  • the object of the invention is to provide a bending device for deforming the leading edge of the sheet for the purpose of register correction or to compensate for tensioned sheets in a gripper system for sheet transfer in a sheet-fed rotary printing press, which can be adjusted especially while the machine is running and requires as few additional components as possible.
  • An essential distinguishing feature of the invention compared to the prior art is thus the formation of the bending device on the gripper bridge of a pre-gripper, which carries out oscillating movements about an axis that is stationary with respect to the machine frame, but possibly adjustable in position, and whose gripper bridge is only at both ends by means of a rigid lever on a Gripper bridge shaft is supported.
  • the actual bending device then only consists of a stop that is fixed to the frame of the machine, but adjustable in height, against which the gripper bridge comes to rest with its central region before the ends of the gripper bridge that swing back further have reached their zero position, in which the bow gripper Take over bow. Since the stop is arranged on part of the machine frame, it can be adjusted at any time, even while the machine is running.
  • the stop can consist of an adjusting screw which passes through a nut thread of a part fixed to the frame.
  • End stops for the gripper bridge are fundamentally not necessary, but stops for the ends of the gripper bridge can also be arranged on the frame of the machine, against which the gripper bridge may come to rest in the zero position. If the middle stop for the gripper bridge is withdrawn behind the straight connecting line of the two end stops, the bending device is ineffective.
  • the middle stop is pushed forward with respect to the straight connecting line, so that the middle of the gripper bridge already comes into contact with this stop before the ends of the gripper bridge have reached the zero position or the outer stops, so that the gripper bridge around the middle stop is bent slightly.
  • Such a gripper bridge works without stops on gripper support strips, so that when the bending device is set, the bow protrudes further into the gripper at the ends than in the middle and the sheet sides are initially accelerated more strongly in the movement of the pre-gripper for the purpose of arch tension than in the middle, such as it also takes place in known devices.
  • the stop for the middle area of the gripper bridge is arranged on a cross member of the machine frame.
  • the middle stop for the gripper bridge is supported on the gripper bridge shaft, in order to enable a delayed retardation over several degrees of swivel.
  • a stop is provided in the form of a roller, which is mounted centrally on a further, firmly connected to the gripper bridge and approximately parallel to the two rigid, extending at the ends of the gripper levers between these extending levers which, on the other hand, has a swivel bearing which is connected to the gripper bridge shaft in a rotationally fixed manner and is arranged eccentrically to its axis.
  • This roller can be adjusted in its distance from the gripper bridge shaft by means of a curve formed on the circumference of a ring rotatable about the gripper bridge shaft.
  • a particularly advantageous solution is seen according to the invention in that the curve is formed on the outer jacket of a ring enclosing the gripper bridge shaft, the rotational position of which can be adjusted by means of an adjusting device fixed on the machine frame, for example an adjusting screw. When the device is turned off, the roller remains free and the lever is pressed against the stop screw with a spring.
  • the pre-gripper shown in the drawing takes over the sheet 1 to be printed from the feed table 2, on which the sheet was aligned with front marks and side marks, not shown.
  • the pre-gripper accelerates the sheet 1 to printing speed and transfers it to the transfer cylinder 3.
  • the pre-gripper is driven by a curve 4 shown in FIG. 1 via a roller lever 5 with a roller 6 which is rotatably mounted at its free end and which by means of a spring 7 against the Curve 4 is pressed.
  • the curve accordingly, the bow is accelerated by the pre-gripper to the printing speed when it is transferred to cylinder 3, while after a corresponding delay in the last movement phase, the pre-gripper slowly returns to the other end position and reaches the zero position in which one new sheet 1 is taken over from feed table 2.
  • a gripper bridge 8 which extends across the machine width and is U-shaped in cross section, is fastened at its ends to rigid levers 9, which on the other hand are fastened to the pivot shaft 10 of the pre-gripper.
  • the bending device for the gripper bridge 8 consists of a stop 12 which is adjustably arranged on a cross member 11 of the machine frame and which has a counter stop 13 on the gripper bridge 8 cooperates.
  • the stop 12 is designed as an adjusting screw 14 which can be screwed into the transverse support 11 or another component of the machine frame, for which purpose the free end of the adjusting screw 14 is connected to a knurled head or means for attaching a tool or motor.
  • optionally adjustable stops 15 and 16 are provided in the region of the ends of the gripper bridge 8 and interact with counter-stops 17 and 18 on the gripper bridge, mushroom heads being used in the simplest manner as stops 15 and 16 and screw heads as counter-stops 17 and 18.
  • the stop 12 can be withdrawn by the adjusting screw 14 to behind the straight connecting line through the planes of contact of the stops 15 and 16 with the counter-stops 17 and 18, so that there is no deflection of the gripper bridge 8.
  • the stop 12 can be moved forward by operating the adjusting screw 14 over this straight connecting line while the machine is running, so that the gripper bridge 8 bends to a greater or lesser extent, as shown in FIG. 2 with the dash-dotted lines.
  • the gripper 20 which is movable in the gripper bridge 8 about its pivot shaft 19, grips further into the arc at the edge than in the middle, so that when the pre-gripper moves, there is greater arc acceleration at the edge and thus tension of the arc .
  • the stop consists of a roller 21, which is supported by a spring 31 on the curve 24 and is freely rotatably mounted on a further lever 22, which is approximately parallel to the two rigid, arranged at the ends of the gripper bridge 8 levers centrally between this extends, one end of which is fixed to the Gripper bridge 8 is connected and the other end of which has a pivot bearing 23 which is connected to a gripper bridge shaft 10 in a rotationally fixed manner and is arranged eccentrically to its axis. Since the roller 21 is adjustable in its distance from the axis of the gripper bridge shaft 10, a bending device is created through which the gripper bridge 8 can be deformed via the lever 22.
  • a curve 24 is determined in the exemplary embodiment which is formed on the circumference of a ring 25 which can be rotated about the axis of the gripper bridge shaft 10.
  • This ring 25 can be rotated by an adjusting screw 26 which is held axially immovably in the frame of the machine and the nut 27 of which is connected to the ring 25 in a pendulum-movable manner. Via this adjusting screw 26, the curve 24 can be rotated into the area of the roller 21 acting as a stop, so that the roller 21 comes into contact earlier when the gripper bridge swivels back and the gripper bridge is thereby deformed.
  • the curve 24 is moved out of the range of motion of the roller 21, as shown in the drawing in FIG. 3.
  • the lever 22 connected in the middle to the gripper bridge 8 interacts with a further stop lever 28 which is arranged on the gripper bridge shaft 10 in a rotationally fixed manner and which is arranged on the gripper bridge shaft 10 in a rotationally fixed manner.
  • an adjustable stop screw 29 or 30 is provided, which rest against one another with their heads and can be set to a tension-free zero position of the gripper bridge.

Landscapes

  • Registering Or Overturning Sheets (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The device is intended for register correction of the overprinting of sheets or, alternatively, for the compensation of misaligned sheets in a rotary sheet-fed press by deforming the leading edge of the sheet before the printing unit. It consists of an adjustable bending apparatus which bends a support for adjacently arranged sheet grippers in the operating cycle of the machine, said support extending transversely to the running direction of the sheet. This bending apparatus is effective on an auxiliary gripper carrying out oscillating movements about a stationary axis having a gripper bridge (8) forming the support for the sheet grippers (20) and being supported on a gripper bridge shaft (10) at least at its two ends by means of rigid levers (9) and it consists of at least one adjustable stop (12, 21), which is fixed in relation to the machine frame and against which the gripper bridge (8) comes to rest approximately centrally between the levers (9) at the ends of the gripper bridge before the ends of the gripper bridge have reached their zero position, when they are swivelled back, in which the sheet grippers (20) take over the sheet (1). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Passerkorrektur der Bogenaufdrucke beziehungsweise zum Ausgleich verspannter Bogen in einer Bogenrotationsdruckmaschine durch Verformen der Bogenvorderkante vor dem Druckwerk mit Gattungsmerkmalen nach dem Oberbegriff des Patentanspruches 1The invention relates to a device for register correction of the sheet prints or to compensate for tensioned sheets in a sheet-fed rotary printing machine by deforming the leading edge of the sheet in front of the printing unit with generic features according to the preamble of claim 1

Diese Gattungsmerkmale einer Vorrichtung zur Passerkorrektur bzw. zum Ausgleich von verspannten Bogen sind aus der DE-PS 31 12 964 bekannt. Diese Druckschrift zeigt die Gattungsmerkmale an einem Bogenübertragungszylinder. Die Biegeeinrichtung greift mittig an die Greiferbrückenwelle des Bogenübertragungszylinders an, so daß sie die Greiferbrückenwelle im Arbeitstakt der Maschine durchbiegt. Dadurch wird die Bogenvorderkante in oder gegen die Drehrichtung des Zylinders in der Mitte verformt. Die Biegeeinrichtung besteht aus einer beweglichen Anordnung eines mittleren Greiferbrückenwellenlagers und aus einem Steuerkurvenmechanismus mit Anpreßrolle und Rückholfeder, wobei die augenblickliche Drehlage der Anpreßrolle durch eine Steuerwelle einstellbar ist, die nach dem Vorschlag in dieser Druckschrift unmittelbar durch die Greiferbrückenwelle gebildet sein soll. Durch eine solche Biegeeinrichtung werden relativ hohe Kosten verursacht. Vor allem haftet ihr der Nachteil an, daß eine Verstellung der Verformung der Bogenvorderkante während des Maschinenlaufs nicht vorgenommen werden kann, so daß die Maschine in der Einrichtungsphase wiederholt angehalten werden muß, um Passerkorrekturen durch Verformung der Bogenvorderkante vorzunehmen.These generic features of a device for register correction or for compensating for tensioned sheets are known from DE-PS 31 12 964. This document shows the generic features on a sheet transfer cylinder. The bending device engages centrally on the gripper bridge shaft of the sheet transfer cylinder, so that it bends the gripper bridge shaft in the work cycle of the machine. As a result, the leading edge of the sheet is deformed in or against the direction of rotation of the cylinder in the middle. The bending device consists of a movable arrangement of a central gripper bridge shaft bearing and of a cam mechanism with pressure roller and return spring, the current rotational position of the pressure roller being adjustable by a control shaft which, according to the proposal in this document, is to be formed directly by the gripper bridge shaft. Such a bending device causes relatively high costs. Above all, there is the disadvantage that the deformation of the leading edge of the sheet cannot be adjusted while the machine is running, so that the machine has to be stopped repeatedly in the set-up phase in order to make register corrections by deforming the leading edge of the sheet.

Die US-PS 2,577,099 zeigt eine Vorrichtung zur Passerkorrektur, bei der die Greiferbrückenwelle an den Enden in einem Bogenübertragungszylinder festgehalten und in der Mitte ebenfalls in oder gegen die Laufrichtung des Bogens durchgebogen wird. Dazu ist die Greiferbrückenwelle entweder rohrförmig ausgebildet und in der Mitte eines Kanals in dem Bogenübertragungszylinder auf einem Rollenpaar abgestützt, deren Drehachsen eine unterschiedliche Winkellage zur Greiferbrückenwellenachse einnehmen und deren Rollen mittels einer Exzentermechanik einzeln gegen die Greiferbrückenwelle preßbar sind, oder als Biegestab gestaltet, der unmittelbar durch eine Exzentermechanik verformbar ist. Auch ein solcher Steuermechanismus für die Biegeeinrichtung ist recht aufwendig und vor allem während des Maschinenlaufes nicht regelbar.The US-PS 2,577,099 shows a device for register correction, in which the gripper bridge shaft is held at the ends in a sheet transfer cylinder and is also bent in the middle in or against the running direction of the sheet. For this purpose, the gripper bridge shaft is either tubular and supported in the middle of a channel in the sheet transfer cylinder on a pair of rollers, the axes of rotation of which take up a different angular position to the gripper bridge shaft axis and the rollers of which can be pressed individually against the gripper bridge shaft by means of an eccentric mechanism, or designed as a bending rod which is directly formed by an eccentric mechanism is deformable. Such a control mechanism for the bending device is also quite complex and, above all, cannot be regulated while the machine is running.

In der DE-AS 23 14 302 und der DE-PS 11 75 695 sind Vorrichtungen zur Verformung der Bogenvorderkante zum Zwecke der Passerkorrektur beschrieben, bei denen die Greiferbrückenwelle unterteilt ist und die benachbarten Enden der Wellenteile in einem beweglichen Schlitten gelagert sind, der mittels besonderer Bauglieder verstellbar ist. Auch diese Einrichtungen sind kostenaufwendig und nicht während des Maschinenlaufs einstellbar.In DE-AS 23 14 302 and DE-PS 11 75 695 devices for deforming the leading edge of the sheet for the purpose of register correction are described, in which the gripper bridge shaft is divided and the adjacent ends of the shaft parts are mounted in a movable carriage, which by means of special Members is adjustable. These devices are also expensive and cannot be adjusted during machine operation.

Hingewiesen wird auch noch auf die bekannte Möglichkeit der Verstellung von Greiferauflageleisten bzw. von Vorderanschlägen in den Greifern von Bogenübertragungszylindern zum Zwecke der Verformung der Bogenvorderkante entsprechend der DE-PS 19 09 795 und der DE-OS 35 04 435. Mit den hieraus bekannten Einrichtungen wird der Bogen bereits bei seiner Ausrichtung an der Greiferauflageleiste bzw. an den Vorderanschlägen der Greifer in einem Bogenanlegezylinder an der Vorderkante verformt und dadurch zur glatten Anlage gebracht.Attention is also drawn to the known possibility of adjusting gripper support strips or front stops in the grippers of sheet transfer cylinders for the purpose of deforming the leading edge of the sheet in accordance with DE-PS 19 09 795 and DE-OS 35 04 435. With the devices known therefrom the sheet is already deformed in its alignment on the gripper support bar or on the front stops of the gripper in a sheet-forming cylinder on the front edge and thereby brought to a smooth contact.

Diese abweichend von dem weiter oben erläuterten Stand der Technik gestalteten Mittel beseitigen die zuvor erwähnten Nachteile jedoch nicht.However, these means, deviating from the prior art explained above, do not eliminate the aforementioned disadvantages.

Allen Anordnungen nach dem Stande der Technik ist das Merkmal gemeinsam, daß die Mittel zur Verformung der Vorderkante des Bogens an einem umlaufend angetriebenen Zylinder mit in einem axialen Kanal am Umfange dieses Zylinders angeordneten, um eine exzentrisch zur Zylinderachse gelagerten Greiferbrückenwelle schwenkbaren Greifersystem vorgesehen sind. Die Praxis und die Literatur weisen somit eindeutig den Weg, daß die Gestaltung solcher Mittel auf umlaufende Zylinder beschränkt und eine aufwendige Herstellung ohne die Möglichkeit einer einfachen Verstellung der Mittel bei laufender Maschine in Kauf zu nehmen ist.All arrangements according to the prior art have the feature in common that the means for deforming the front edge of the sheet are provided on a cylinder driven in a rotating manner with a gripper system which can be pivoted about an eccentrically mounted to the cylinder axis gripper bridge shaft with a gripper system which is pivotable about the cylinder axis. Practice and literature thus clearly show the way that the design of such means is limited to revolving cylinders and a complex manufacture without the possibility of simply adjusting the means with the machine running is acceptable.

Aufgabe der Erfindung ist die Schaffung einer Biegeeinrichtung zur Verformung der Bogenvorderkante zum Zwecke der Passerkorrektur bzw. zum Ausgleich verspannter Bogen in einem Greifersystem zur Bogenübernahme in einer Bogenrotationsdruckmaschine, die vor allem während des Maschinenlaufs einstellbar ist und möglichst wenig zusätzliche Bauteile erfordert.The object of the invention is to provide a bending device for deforming the leading edge of the sheet for the purpose of register correction or to compensate for tensioned sheets in a gripper system for sheet transfer in a sheet-fed rotary printing press, which can be adjusted especially while the machine is running and requires as few additional components as possible.

Zur Lösung dieser Aufgabe wird erfindungsgemäß eine Ausbildung mit Merkmalen nach dem Kennzeichen des Patentanspruches 1 vorgeschlagen.To achieve this object, an embodiment with features according to the characterizing part of patent claim 1 is proposed.

Wesentliches Unterscheidungsmerkmal der Erfindung gegenüber dem Stande der Technik ist somit die Ausbildung der Biegeeinrichtung an der Greiferbrücke eines Vorgreifers, der schwingende Bewegungen um eine gegenüber dem Maschinengestell ortsfeste, in ihrer Lage jedoch eventuell verstellbare Achse ausführt und dessen Greiferbrücke lediglich an ihren beiden Enden mittels biegesteifer Hebel auf einer Greiferbrückenwelle abgestützt ist. Die eigentliche Biegeeinrichtung besteht dann lediglich aus einem am Gestell der Maschine festen, in der Höhenlage jedoch einstellbaren Anschlag, gegen den die Greiferbrücke mit ihrem mittleren Bereich zur Anlage kommt, bevor die weiter zurückschwingenden Enden der Greiferbrücke ihre Nullage erreicht haben, in der die Bogengreifer den Bogen übernehmen. Da der Anschlag an einem Teil des Maschinengestells angeordnet ist, kann er jederzeit, auch während des Maschinenlaufes, verstellt werden. Darin ist ein wesentlicher Vorteil gegenüber allen bisher bekannten Ausbildungen zu sehen. Außerdem kann der Anschlag in einfachster Ausbildung aus einer Stellschraube bestehen, die ein Muttergewinde eines gestellfesten Teiles durchgreift. Endanschläge für die Greiferbrücke sind grundsätzlich nicht notwendig, jedoch können auch für die Enden der Greiferbrücke Anschläge am Gestell der Maschine angeordnet sein, gegen die die Greiferbrücke in der Nullage gegebenenfalls zur Anlage kommt. Wird der mittlere Anschlag für die Greiferbrücke hinter die gerade Verbindungslinie der beiden Endanschläge zurückgenommen, so ist die Biegeeinrichtung unwirksam. Bei einer eventuell erforderlichen Passerkorrektur wird der mittlere Anschlag gegenüber der geraden Verbindungslinie vorgeschoben, so daß die Mitte der Greiferbrücke bereits gegen diesen Anschlag zur Anlage kommt, bevor die Enden der Greiferbrücke die Nullage bzw. die äußeren Anschläge erreicht haben, so daß die Greiferbrücke um den mittleren Anschlag herum leicht verbogen wird. Eine solche Greiferbrücke arbeitet ohne Anschläge an Greiferauflageleisten, so daß der Bogen bei eingestellter Biegeeinrichtung an den Enden weiter in die Greifer hineinragt als in der Mitte und die Bogenseiten zum Zwecke der Bogenspannung bei der Bewegung des Vorgreifers zunächst stärker beschleunigt werden als in der Mitte, wie es an sich auch bei bekannten Einrichtungen erfolgt.An essential distinguishing feature of the invention compared to the prior art is thus the formation of the bending device on the gripper bridge of a pre-gripper, which carries out oscillating movements about an axis that is stationary with respect to the machine frame, but possibly adjustable in position, and whose gripper bridge is only at both ends by means of a rigid lever on a Gripper bridge shaft is supported. The actual bending device then only consists of a stop that is fixed to the frame of the machine, but adjustable in height, against which the gripper bridge comes to rest with its central region before the ends of the gripper bridge that swing back further have reached their zero position, in which the bow gripper Take over bow. Since the stop is arranged on part of the machine frame, it can be adjusted at any time, even while the machine is running. This is a significant advantage over all previously known training courses. In addition, in its simplest form, the stop can consist of an adjusting screw which passes through a nut thread of a part fixed to the frame. End stops for the gripper bridge are fundamentally not necessary, but stops for the ends of the gripper bridge can also be arranged on the frame of the machine, against which the gripper bridge may come to rest in the zero position. If the middle stop for the gripper bridge is withdrawn behind the straight connecting line of the two end stops, the bending device is ineffective. If the register needs to be corrected, the middle stop is pushed forward with respect to the straight connecting line, so that the middle of the gripper bridge already comes into contact with this stop before the ends of the gripper bridge have reached the zero position or the outer stops, so that the gripper bridge around the middle stop is bent slightly. Such a gripper bridge works without stops on gripper support strips, so that when the bending device is set, the bow protrudes further into the gripper at the ends than in the middle and the sheet sides are initially accelerated more strongly in the movement of the pre-gripper for the purpose of arch tension than in the middle, such as it also takes place in known devices.

In einfachster Ausbildung ist der Anschlag für den mittleren Bereich der Greiferbrücke an einem Querträger des Maschinengestells angeordnet.In the simplest form, the stop for the middle area of the gripper bridge is arranged on a cross member of the machine frame.

Erfindungsgemäß ist nach einem Gedanken zur weiteren Ausgestaltung der Erfindung vorgesehen, daß der mittlere Anschlag für die Greiferbrücke auf der Greiferbrückenwelle abgestützt ist, um dadurch ein über mehrere Schwenkgrade verzögertes Zurückbleiben zu ermöglichen. Dazu ist nach einem besonderen Vorschlag gemäß der Erfindung ein Anschlag in der Form einer Rolle vorgesehen, die an einem weiteren, mit der Greiferbrücke fest verbundenen und sich etwa parallel zu den beiden biegesteifen, an den Enden der Greiferbrücke erstreckenden Hebeln mittig zwischen diesen erstreckenden Hebel gelagert ist, welcher andererseits ein drehfest mit der Greiferbrückenwelle verbundenes, exzentrisch zu deren Achse angeordnetes Schwenklager aufweist. Diese Rolle ist in ihrem Abstand von der Greiferbrückenwelle durch eine am Umfang eines um die Greiferbrückenwelle verdrehbaren Ringes ausgebildete Kurve einstellbar. Eine besonders vorteilhafte Lösung wird erfindungsgemäß darin gesehen, daß die Kurve am Außenmantel eines die Greiferbrückenwelle umschließenden Ringes ausgebildet ist, dessen Drehlage mittels einer am Maschinengestell festen Einstellvorrichtung, zum Beispiel einer Stellschraube, einstellbar ist. Bei abgestellter Einrichtung bleibt die Rolle frei, und mit einer Feder wird der Hebel gegen die Anschlagschraube gedrückt.According to the invention, it is provided according to an idea for a further embodiment of the invention that the middle stop for the gripper bridge is supported on the gripper bridge shaft, in order to enable a delayed retardation over several degrees of swivel. For this purpose, according to a special proposal according to the invention, a stop is provided in the form of a roller, which is mounted centrally on a further, firmly connected to the gripper bridge and approximately parallel to the two rigid, extending at the ends of the gripper levers between these extending levers which, on the other hand, has a swivel bearing which is connected to the gripper bridge shaft in a rotationally fixed manner and is arranged eccentrically to its axis. This roller can be adjusted in its distance from the gripper bridge shaft by means of a curve formed on the circumference of a ring rotatable about the gripper bridge shaft. A particularly advantageous solution is seen according to the invention in that the curve is formed on the outer jacket of a ring enclosing the gripper bridge shaft, the rotational position of which can be adjusted by means of an adjusting device fixed on the machine frame, for example an adjusting screw. When the device is turned off, the roller remains free and the lever is pressed against the stop screw with a spring.

Auf der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt.Exemplary embodiments of the invention are shown in the drawing.

Es zeigen:

  • Figur 1 einen vertikalen Schnitt durch einen Vorgreifer einer Bogenrotationsdruckmaschine,
  • Figur 2 eine Draufsicht auf den Vorgreifer in Richtung des Pfeiles X in Figur 1,
  • Figur 3 einen vertikalen Schnitt durch einen Vorgreifer eines gegenüber der Figur 1 abgeänderten Ausführungsbeispieles und
  • Figur 4 eine Draufsicht auf den Vorgreifer nach Figur 3 in Richtung des Pfeiles X in Figur 3.
Show it:
  • FIG. 1 shows a vertical section through a pre-gripper of a sheet-fed rotary printing press,
  • FIG. 2 shows a plan view of the pre-gripper in the direction of arrow X in FIG. 1,
  • 3 shows a vertical section through a pre-gripper of an exemplary embodiment modified from FIG. 1 and
  • FIG. 4 shows a plan view of the pre-gripper according to FIG. 3 in the direction of the arrow X in FIG. 3.

Der auf der Zeichnung dargestellte Vorgreifer übernimmt den zu bedruckenden Bogen 1 vom Anlegetisch 2, auf dem der Bogen an nicht dargestellten Vordermarken und Seitenmarken ausgerichtet wurde. Der Vorgreifer beschleunigt den Bogen 1 auf Druckgeschwindigkeit und übergibt ihn an den Umführungszylinder 3. Der Antrieb des Vorgreifers erfolgt durch eine in Figur 1 dargestellte Kurve 4 über einen Rollenhebel 5 mit an seinem freien Ende drehbar gelagerter Rolle 6, die mittels einer Feder 7 gegen die Kurve 4 gedrückt wird. Durch eine entsprechende Gestaltung der Kurve wird der Bogen durch den Vorgreifer bis auf Druckgeschwindigkeit bei der Übergabe an den Zylinder 3 beschleunigt, während der Vorgreifer nach einer entsprechenden Verzögerung in der letzten Bewegungsphase langsam in die andere Endlage zurückkehrt und die Nullage erreicht wird, in der ein neuer Bogen 1 vom Anlegetisch 2 übernommen wird.The pre-gripper shown in the drawing takes over the sheet 1 to be printed from the feed table 2, on which the sheet was aligned with front marks and side marks, not shown. The pre-gripper accelerates the sheet 1 to printing speed and transfers it to the transfer cylinder 3. The pre-gripper is driven by a curve 4 shown in FIG. 1 via a roller lever 5 with a roller 6 which is rotatably mounted at its free end and which by means of a spring 7 against the Curve 4 is pressed. By designing the curve accordingly, the bow is accelerated by the pre-gripper to the printing speed when it is transferred to cylinder 3, while after a corresponding delay in the last movement phase, the pre-gripper slowly returns to the other end position and reaches the zero position in which one new sheet 1 is taken over from feed table 2.

Bei dem Ausführungsbeispiel in der Figur 1 ist eine sich quer über die Maschinenbreite erstreckende, im Querschnitt u-förmige Greiferbrücke 8 mit ihren Enden an biegesteifen Hebeln 9 befestigt, die andererseits auf der Schwenkwelle 10 des Vorgreifers befestigt sind. Die Biegeeinrichtung für die Greiferbrücke 8 besteht aus einem verstellbar an einem Querträger 11 des Maschinengestells angeordneten Anschlag 12, welcher mit einem Gegenanschlag 13 an der Greiferbrücke 8 zusammenwirkt. Der Anschlag 12 ist in diesem Ausführungsbeispiel als Stellschraube 14 ausgebildet, die in dem querverlaufenden Träger 11 oder einem anderen Bauteil des Maschinengestells verschraubt werden kann, wozu das freie Ende der Stellschraube 14 mit einem Rändelkopf oder Mitteln zum Ansetzen eines Werkzeuges oder Motors verbunden ist. Weitere, gegebenenfalls einstellbare Anschläge 15 und 16 sind im Bereich der Enden der Greiferbrücke 8 vorgesehen und wirken mit Gegenanschlägen 17 und 18 an der Greiferbrücke zusammen, wobei in einfachster Weise Pilzköpfe als Anschläge 15 und 16 sowie Schraubenköpfe als Gegenanschläge 17 und 18 verwendet werden. Bei dieser Anordnung kann der Anschlag 12 durch die Stellschraube 14 bis hinter die gerade Verbindungslinie durch die Berührungsebenen der Anschläge 15 und 16 mit den Gegenanschlägen 17 und 18 zurückgenommen werden, so daß keine Durchbiegung der Greiferbrücke 8 erfolgt. Zum Zwecke der Passerkorrektur kann der Anschlag 12 bei laufender Maschine durch Betätigung der Stellschraube 14 über diese gerade Verbindungslinie vorbewegt werden, so daß eine mehr oder weniger starke Durchbiegung der Greiferbrücke 8 erfolgt, wie es in der Figur 2 mit den strichpunktierten Linien dargestellt ist. Je nach dem Grad der Durchbiegung fassen die in der Greiferbrücke 8 um ihre Schwenkwelle 19 beweglichen Greifer 20 am Rand weiter in den Bogen ein als in der Mitte, so daß bei der Bewegung des Vorgreifers eine stärkere Bogenbeschleunigung am Rand und damit eine Spannung des Bogens erfolgt.In the exemplary embodiment in FIG. 1, a gripper bridge 8, which extends across the machine width and is U-shaped in cross section, is fastened at its ends to rigid levers 9, which on the other hand are fastened to the pivot shaft 10 of the pre-gripper. The bending device for the gripper bridge 8 consists of a stop 12 which is adjustably arranged on a cross member 11 of the machine frame and which has a counter stop 13 on the gripper bridge 8 cooperates. In this exemplary embodiment, the stop 12 is designed as an adjusting screw 14 which can be screwed into the transverse support 11 or another component of the machine frame, for which purpose the free end of the adjusting screw 14 is connected to a knurled head or means for attaching a tool or motor. Further, optionally adjustable stops 15 and 16 are provided in the region of the ends of the gripper bridge 8 and interact with counter-stops 17 and 18 on the gripper bridge, mushroom heads being used in the simplest manner as stops 15 and 16 and screw heads as counter-stops 17 and 18. In this arrangement, the stop 12 can be withdrawn by the adjusting screw 14 to behind the straight connecting line through the planes of contact of the stops 15 and 16 with the counter-stops 17 and 18, so that there is no deflection of the gripper bridge 8. For the purpose of register correction, the stop 12 can be moved forward by operating the adjusting screw 14 over this straight connecting line while the machine is running, so that the gripper bridge 8 bends to a greater or lesser extent, as shown in FIG. 2 with the dash-dotted lines. Depending on the degree of deflection, the gripper 20, which is movable in the gripper bridge 8 about its pivot shaft 19, grips further into the arc at the edge than in the middle, so that when the pre-gripper moves, there is greater arc acceleration at the edge and thus tension of the arc .

Ein anderes Ausführungsbeispiel ist in den Figuren 3 und 4 dargestellt. Hiernach besteht der Anschlag aus einer Rolle 21, die von einer Feder 31 auf die Kurve 24 gestützt wird und an einem weiteren Hebel 22 frei drehbar gelagert ist, der sich etwa parallel zu den beiden biegesteifen, an den Enden der Greiferbrücke 8 angeordneten Hebeln mittig zwischen diesen erstreckt, dessen eines Ende fest mit der Greiferbrücke 8 verbunden ist und dessen anderes Ende ein drehfest mit einer Greiferbrückenwelle 10 verbundenes, exzentrisch zu deren Achse angeordnetes Schwenklager 23 aufweist. Da die Rolle 21 in ihrem Abstand von der Achse der Greiferbrückenwelle 10 einstellbar ist, wird eine Biegeeinrichtung geschaffen, durch die die Greiferbrücke 8 über den Hebel 22 verformt werden kann. Zur Einstellung des Abstandes der Rolle 21 von der Achse der Greiferbrückenwelle 10 ist bei dem Ausführungsbeispiel eine Kurve 24 bestimmt, die am Umfang eines um die Achse der Greiferbrückenwelle 10 verdrehbaren Ringes 25 ausgebildet ist. Dieser Ring 25 ist durch eine Stellschraube 26 verdrehbar, die axial unverschieblich im Gestell der Maschine gehalten und deren Mutter 27 mit dem Ring 25 pendelbeweglich verbunden ist. Über diese Stellschraube 26 kann die Kurve 24 in den Bereich der als Anschlag wirkenden Rolle 21 verdreht werden, so daß die Rolle 21 bei zurückschwenkender Greiferbrücke früher zur Anlage kommt und die Greiferbrücke dadurch verformt wird. Zur Abstellung der Biegeeinrichtung wird die Kurve 24 aus dem Bewegungsbereich der Rolle 21 herausbewegt, wie es in der Figur 3 zeichnerisch dargestellt ist. Der in der Mitte mit der Greiferbrücke 8 verbundene Hebel 22 wirkt mit einem weiteren, drehfest auf der Greiferbrückenwelle 10 angeordneten Anschlaghebel 28 zusammen, welcher auf der Greiferbrückenwelle 10 drehfest angeordnet ist. In diesem Hebel 28 und in dem Hebel 22 ist je eine verstellbare Anschlagschraube 29 bzw. 30 vorgesehen, die mit ihren Köpfen aneinanderliegen und auf eine spannungsfreie Nullage der Greiferbrücke einstellbar sind. Bei abgestellter Biegeeinrichtung werden die beiden Köpfe der beiden Schrauben 29 und 30 durch eine Feder 31 zusammengehalten.Another embodiment is shown in Figures 3 and 4. Thereafter, the stop consists of a roller 21, which is supported by a spring 31 on the curve 24 and is freely rotatably mounted on a further lever 22, which is approximately parallel to the two rigid, arranged at the ends of the gripper bridge 8 levers centrally between this extends, one end of which is fixed to the Gripper bridge 8 is connected and the other end of which has a pivot bearing 23 which is connected to a gripper bridge shaft 10 in a rotationally fixed manner and is arranged eccentrically to its axis. Since the roller 21 is adjustable in its distance from the axis of the gripper bridge shaft 10, a bending device is created through which the gripper bridge 8 can be deformed via the lever 22. In order to set the distance of the roller 21 from the axis of the gripper bridge shaft 10, a curve 24 is determined in the exemplary embodiment which is formed on the circumference of a ring 25 which can be rotated about the axis of the gripper bridge shaft 10. This ring 25 can be rotated by an adjusting screw 26 which is held axially immovably in the frame of the machine and the nut 27 of which is connected to the ring 25 in a pendulum-movable manner. Via this adjusting screw 26, the curve 24 can be rotated into the area of the roller 21 acting as a stop, so that the roller 21 comes into contact earlier when the gripper bridge swivels back and the gripper bridge is thereby deformed. To switch off the bending device, the curve 24 is moved out of the range of motion of the roller 21, as shown in the drawing in FIG. 3. The lever 22 connected in the middle to the gripper bridge 8 interacts with a further stop lever 28 which is arranged on the gripper bridge shaft 10 in a rotationally fixed manner and which is arranged on the gripper bridge shaft 10 in a rotationally fixed manner. In this lever 28 and in the lever 22, an adjustable stop screw 29 or 30 is provided, which rest against one another with their heads and can be set to a tension-free zero position of the gripper bridge. When the bending device is turned off, the two heads of the two screws 29 and 30 are held together by a spring 31.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

  • 1 Bogen1 sheet
  • 2 Anlegetisch2 feed table
  • 3 Bogenüberführungszylinder3 sheet transfer cylinders
  • 4 Kurve4 curve
  • 5 Hebel5 levers
  • 6 Rolle6 roll
  • 7 Feder7 spring
  • 8 Greiferbrücke8 grab bridge
  • 9 Hebel9 levers
  • 10 Greiferbrückenwelle10 gripper bridge shaft
  • 11 Träger am Gestell11 brackets on the frame
  • 12 Anschlag12 stop
  • 13 Gegenanschlag13 counterstop
  • 14 Stellschraube14 set screw
  • 15 Anschlag15 stop
  • 16 Anschlag16 stop
  • 17 Gegenanschlag17 counterstop
  • 18 Gegenanschlag18 counterstop
  • 19 Greiferwelle19 gripper shaft
  • 20 Bogengreifer20 bow grabs
  • 21 Rolle21 roll
  • 22 Hebel22 levers
  • 23 Schwenklager23 swivel bearings
  • 24 Kurve24 curve
  • 25 Ring25 ring
  • 26 Stellschraube26 set screw
  • 27 Mutter27 mother
  • 28 Hebel28 levers
  • 29 Schraube29 screw
  • 30 Schraube30 screw
  • 31 Feder31 spring

Claims (10)

1. Vorrichtung zur Passerkorrektur der Bogenaufdrucke beziehungsweise zum Ausgleich verspannter Bogen in einer Bogenrotationsdruckmaschine durch Verformen der Bogenvorderkante vor dem Druckwerk, bestehend aus einer verstellbaren Biegeeinrichtung, die einen sich quer zur Laufrichtung des Bogens erstreckenden Träger für nebeneinander angeordnete Bogengreifer im Arbeitstakt der Maschine durchbiegt,
dadurch gekennzeichnet,
daß die Biegeeinrichtung an einem schwingende Bewegungen um eine ortsfeste bzw. in der Lage gesteuerte Achse ausführenden Vorgreifer mit einer den Träger für die Bogengreifer bildenden, wenigstens an ihren beiden Enden mittels biegesteifer Hebel (9) auf einer Greiferbrückenwelle (10) abgestützten Greiferbrücke (8) wirksam ist und aus wenigstens einem einstellbaren, gegenüber dem Gestell (11) der Maschine festen Anschlag (12,21) besteht, gegen den die Greiferbrücke (8) etwa mittig zwischen den beiden Hebeln (9) zur Anlage kommt, bevor die Enden der Greiferbrücke beim Zurückschwenken ihre Nullage erreicht haben, in der die Bogengreifer (20) den Bogen (1) übernehmen.1.Device for register correction of the sheet prints or to compensate for tensioned sheets in a sheet-fed rotary printing machine by deforming the front edge of the sheet in front of the printing unit, consisting of an adjustable bending device which bends a carrier which extends transversely to the running direction of the sheet for sheet grippers arranged next to one another in the work cycle of the machine,
characterized by
that the bending device on a vibrating movement around a stationary or position-controlled axis performing pre-gripper with a support for the sheet gripper forming at least at both ends by means of rigid lever (9) supported on a gripper bridge shaft (10) gripper bridge (8) is effective and consists of at least one adjustable stop (12, 21) which is fixed relative to the frame (11) of the machine, against which the gripper bridge (8) comes to rest approximately centrally between the two levers (9) before the ends of the gripper bridge when swiveling back they have reached their zero position in which the sheet grippers (20) take over the sheet (1). 2. Vorrichtung zur Passerkorrektur nach Anspruch 1, dadurch gekennzeichnet,
daß der Anschlag (12) für die Greiferbrücke (8) an einem Querträger (11) des Maschinengestells angeordnet ist.2. Device for register correction according to claim 1, characterized in that
that the stop (12) for the gripper bridge (8) is arranged on a cross member (11) of the machine frame. 3. Vorrichtung zur Passerkorrektur nach Anspruch 1, dadurch gekennzeichnet,
daß am Maschinengestell zusätzlich Anschläge (15,16) für die Enden der Greiferbrücke (8) vorgesehen sind und der mittlere Anschlag (12) gegenüber der geraden Verbindungslinie der Anschläge (15,16) an den Enden der Greiferbrücke (8) in Laufrichtung des Bogens vorspringend verstellbar ist.3. Device for register correction according to claim 1, characterized in that
that additional stops (15, 16) for the ends of the gripper bridge (8) are provided on the machine frame and the middle stop (12) opposite the straight connecting line of the stops (15, 16) at the ends of the gripper bridge (8) in the running direction of the sheet is adjustable. 4. Vorrichtung zur Passerkorrektur nach den Ansprüchen 2 und 3,
dadurch gekennzeichnet,
daß der Anschlag (12) an einer in dem Querträger (11) des Gestells verschraubbaren Stellschraube (14) ausgebildet ist.4. Device for register correction according to claims 2 and 3,
characterized by
that the stop (12) is formed on a screw (14) which can be screwed into the cross member (11) of the frame. 5. Vorrichtung zur Passerkorrektur nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß die Anschläge (15,16) für die Enden der Greiferbrücke (8) verstellbar ausgebildet sind.5. Device for register correction according to claims 1 to 3,
characterized by
that the stops (15, 16) for the ends of the gripper bridge (8) are adjustable. 6. Vorrichtung zur Passerkorrektur nach Anspruch 1, dadurch gekennzeichnet,
daß der Anschlag aus einer Rolle (21) besteht, die sich gegen die Greiferbrückenwelle (10) abstützt und im Abstand von deren Achse einstellbar ist.6. Device for register correction according to claim 1, characterized in that
that the stop consists of a roller (21) which is supported against the gripper bridge shaft (10) and is adjustable at a distance from its axis. 7. Vorrichtung zur Passerkorrektur nach Anspruch 6, dadurch gekennzeichnet,
daß die Rolle (21) an einem weiteren, mit der Greiferbrücke (8) fest verbundenen und sich etwa parallel zu den beiden biegesteifen, an den Enden der Greiferbrücke angeordneten Hebeln (9) mittig zwischen diesen erstreckenden Hebel (22) gelagert ist, der andererseits ein drehfest mit der Greiferbrückenwelle (10) verbundenes, exzentrisch zu deren Achse angeordnetes Schwenklager (23) aufweist.7. Device for register correction according to claim 6, characterized in that
that the roller (21) on another, with the gripper bridge (8) firmly connected and approximately parallel to the two rigid, at the ends of the gripper bridge arranged levers (9) is mounted centrally between these extending lever (22), which on the other hand has a rotatably connected to the gripper bridge shaft (10), arranged eccentrically to its axis pivot bearing (23). 8. Vorrichtung zur Passerkorrektur nach den Ansprüchen 6 und 7,
dadurch gekennzeichnet,
daß die Rolle (21) in ihrem Abstand von der Greiferbrückenwelle (10) durch eine am Umfang eines um die Greiferbrückenwelle (10) verdrehbaren Ringes (25) ausgebildete Kurve (24) einstellbar ist.8. Device for register correction according to claims 6 and 7,
characterized by
that the roller (21) is adjustable in its distance from the gripper bridge shaft (10) by a curve (24) formed on the circumference of a ring (25) rotatable about the gripper bridge shaft (10). 9. Vorrichtung zur Passerkorrektur nach Anspruch 8, dadurch gekennzeichnet,
daß der Ring (25) mit einer am Maschinengestell axial unverschieblich gehaltenen Stellschraube (26) verbunden ist.9. Device for register correction according to claim 8, characterized in that
that the ring (25) is connected to an adjusting screw (26) held axially immovably on the machine frame. 10. Vorrichtung zur Passerkorrektur nach einem der Ansprüche 7 bis 9,
dadurch gekennzeichnet,
daß der in der Mitte fest mit der Greiferbrücke (8) verbundene Hebel (22) mit einem weiteren Anschlaghebel (28) zusammenwirkt, der gestellfest angeordnet und auf eine spannungsfreie Nullage der Greiferbrücke (8) einstellbar ist.10. Device for register correction according to one of claims 7 to 9,
characterized by
that the lever (22), which is firmly connected to the gripper bridge (8) in the middle, cooperates with a further stop lever (28) which is arranged fixed to the frame and can be adjusted to a tension-free zero position of the gripper bridge (8).
EP89120537A 1988-12-03 1989-11-06 Device for register correction of the overprinting of sheets in a rotary sheet-fed press Expired - Lifetime EP0372237B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840870 1988-12-03
DE3840870 1988-12-03

Publications (3)

Publication Number Publication Date
EP0372237A2 true EP0372237A2 (en) 1990-06-13
EP0372237A3 EP0372237A3 (en) 1990-10-10
EP0372237B1 EP0372237B1 (en) 1995-04-26

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ID=6368455

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EP89120537A Expired - Lifetime EP0372237B1 (en) 1988-12-03 1989-11-06 Device for register correction of the overprinting of sheets in a rotary sheet-fed press

Country Status (5)

Country Link
EP (1) EP0372237B1 (en)
JP (1) JPH02200438A (en)
CN (1) CN1013261B (en)
CA (1) CA2000730C (en)
DE (2) DE8816641U1 (en)

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EP0638497A1 (en) * 1993-08-12 1995-02-15 Komori Corporation Paper conveying apparatus for sheet-fed press
EP0725026A2 (en) * 1995-02-04 1996-08-07 Heidelberger Druckmaschinen Aktiengesellschaft Device for avoiding register errors
EP0704398A3 (en) * 1994-09-28 1997-04-16 Heidelberger Druckmasch Ag Device for register correction and compensation of deformed sheets in the feeder of a sheet printing machine
EP1031418A1 (en) * 1999-02-26 2000-08-30 Komori Corporation Sheet-like object conveying apparatus for sheet-fed rotary printing press
EP1136404A2 (en) * 2000-03-08 2001-09-26 Bobst S.A. Device for longitudinally aligning plate-like elements in a feeding station of a machine for treating them

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DE4131887C1 (en) * 1991-09-25 1993-01-07 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE9409890U1 (en) * 1994-06-18 1994-08-04 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Device for register correction on sheet-fed rotary printing machines
DE19611124B4 (en) * 1996-03-21 2012-07-26 Heidelberger Druckmaschinen Ag Sheet transfer device of a sheet-fed rotary printing machine
CN1084253C (en) * 1999-01-19 2002-05-08 李青安 Automatic quick paper feeding system without gripping paper device
JP4496132B2 (en) * 2005-06-08 2010-07-07 アキヤマインターナショナル株式会社 Swing device for multicolor printing sheet offset printing machine
CN101412296B (en) * 2007-10-18 2011-02-16 李青安 Die-cutting mark press (or thermoprinting machine) with paper holding and locating at the feed portion and one time paper-push-paper movement
DE102008060291B4 (en) 2007-12-13 2022-09-01 Heidelberger Druckmaschinen Ag Sheet acceleration system for a sheet-fed printing press
CN103979328A (en) * 2014-05-22 2014-08-13 邱浩 Gripper-bar paper feeder of die-cutting machine

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EP0638497A1 (en) * 1993-08-12 1995-02-15 Komori Corporation Paper conveying apparatus for sheet-fed press
US5505441A (en) * 1993-08-12 1996-04-09 Komori Corporation Paper conveying apparatus for sheet-fed press
EP0704398A3 (en) * 1994-09-28 1997-04-16 Heidelberger Druckmasch Ag Device for register correction and compensation of deformed sheets in the feeder of a sheet printing machine
EP0725026A2 (en) * 1995-02-04 1996-08-07 Heidelberger Druckmaschinen Aktiengesellschaft Device for avoiding register errors
EP0725026A3 (en) * 1995-02-04 1997-08-13 Heidelberger Druckmasch Ag Device for avoiding register errors
EP1031418A1 (en) * 1999-02-26 2000-08-30 Komori Corporation Sheet-like object conveying apparatus for sheet-fed rotary printing press
US6283467B1 (en) 1999-02-26 2001-09-04 Komori Corporation Sheet-like object convey apparatus for sheet-fed rotary printing press
EP1136404A2 (en) * 2000-03-08 2001-09-26 Bobst S.A. Device for longitudinally aligning plate-like elements in a feeding station of a machine for treating them
EP1136404A3 (en) * 2000-03-08 2003-01-02 Bobst S.A. Device for longitudinally aligning plate-like elements in a feeding station of a machine for treating them
CN1152813C (en) * 2000-03-08 2004-06-09 鲍勃斯脱股份有限公司 Device for longitudinally calibrating plate at transverse feeding station of plate-making machine

Also Published As

Publication number Publication date
CA2000730A1 (en) 1990-06-03
CN1013261B (en) 1991-07-24
EP0372237B1 (en) 1995-04-26
JPH02200438A (en) 1990-08-08
CN1043107A (en) 1990-06-20
DE8816641U1 (en) 1990-01-25
CA2000730C (en) 1995-01-31
EP0372237A3 (en) 1990-10-10
DE58909200D1 (en) 1995-06-01

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