EP0451574A1 - Device to tension plates onto a form cylinder of a rotary printing machine - Google Patents

Device to tension plates onto a form cylinder of a rotary printing machine Download PDF

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Publication number
EP0451574A1
EP0451574A1 EP91104495A EP91104495A EP0451574A1 EP 0451574 A1 EP0451574 A1 EP 0451574A1 EP 91104495 A EP91104495 A EP 91104495A EP 91104495 A EP91104495 A EP 91104495A EP 0451574 A1 EP0451574 A1 EP 0451574A1
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EP
European Patent Office
Prior art keywords
clamping
spindle
cylinder
support element
pit
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
EP91104495A
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German (de)
French (fr)
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EP0451574B1 (en
Inventor
Klaus T. Reichel
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
Publication of EP0451574A1 publication Critical patent/EP0451574A1/en
Application granted granted Critical
Publication of EP0451574B1 publication Critical patent/EP0451574B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/125—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end on a curvilinear path, e.g. by winding on a roll

Definitions

  • the present invention relates to a device for clamping plates on a forme cylinder of a rotary printing press according to the preamble of claim 1.
  • a generic device for clamping plates on a forme cylinder of a rotary printing press is known from the German patent DE 33 39 185 C2.
  • the forme cylinder has a symmetrical cylindrical pit running in the axial direction, in which a clamping spindle which is rotatable about its axis and is provided with two longitudinal slots for receiving a plate end is arranged.
  • a clamping spindle support is attached to one of the two pit walls in order to counteract the risk that the clamping spindle will bend due to its length. Since the forme cylinder can be used clockwise or counterclockwise, the clamping spindle support is arranged on the right or left pit wall in accordance with the intended direction of rotation of the forme cylinder.
  • This known tensioning device has the disadvantage that the tensioning spindle support has to be fastened to the pit wall and, in particular, has to be glued in order to prevent unintentional removal of the support and falling out of machine parts. This is a reversal of the direction of rotation of the forme cylinder, e.g. is not required for an impression unit.
  • the object of the invention is therefore to provide a device for tensioning plates on a forme cylinder of a rotary printing press in such a way that the direction of rotation of the forme cylinder can still be freely selected even after it has been installed, and that an adaptation of the tensioning device to the selected direction of rotation is possible quickly and easily.
  • FIG. 1 shows a section of a section through the area of a forme cylinder 1 in which a cylinder pit 2 is formed.
  • the cylinder pit 2 is essentially formed from a cylindrical bore 3 arranged axially parallel to the forme cylinder 1 and two slots 4 and 5 arranged tangentially and symmetrically with respect to the cylindrical bore 3 for introducing pressure plate ends, with walls 6 and 7 of the slots 4 and 5 are also walls of the cylinder pit 2.
  • a clamping spindle 8 is rotatably mounted in the cylinder pit 2.
  • the clamping spindle 8 has two flutes 9 and 10 for receiving a plate end.
  • a support element 11 is arranged at the same distance from the flutes 9 and 10.
  • the support element 11 is preferably designed as a feather key which is fastened to the clamping spindle body with a screw 12 and which is ground on the circumference with the clamping spindle 8.
  • the feather key 11 can be adjusted in height by sheets 13 of different thickness.
  • FIG. 1 shows the clamping spindle 8 with the pressure plate 15 under tension with a right-hand rotating forme cylinder 1.
  • the front edge 16 of the pressure plate 15 is hooked onto the left upper edge of the cylinder pit 2, and the rear edge 17 is hooked into the right flute 9 as seen from the support element 11.
  • the clamping spindle 8 is turned to the left.
  • the support element 11 is rotated against the pit wall 7 and thus supports the clamping spindle 8.
  • FIG. 2 shows a tensioning device according to the invention with a tensioned pressure plate in a left-hand rotating forme cylinder 1.
  • the tensioning device according to FIG. 2 corresponds in all details to the tensioning device described with reference to FIG. 1. A detailed description of the elements of the device is therefore omitted here.
  • FIG. 2 the elements corresponding to the elements from FIG. 1 are provided with the same reference symbols.
  • the clamping device shown in Fig. 2 differs from that shown in FIG. 1 only insofar as the front edge 16 of the pressure plate 15 is hooked onto the right upper edge of the cylinder pit 2 and as the rear edge 17 of the pressure plate 15 is hooked into the flute 10 seen from the support element 11.
  • the clamping spindle 8 is turned to the right.
  • the present invention has the advantage of being equipped with a tension wire 14 or other tensioning aid, e.g. a plurality of clamping knobs, provided pressure plate 15 so that it can be clamped on the forme cylinder 1 so that it can be operated either clockwise or counterclockwise. If the forme cylinder 1 is to be operated with a printing plate to be subsequently clamped in the opposite direction of rotation, the clamping spindle 8 only needs to be brought into the corresponding starting position when the printing plate 15 is clamped, without any changes to the clamping device, e.g. replacement of parts and in particular loosening and subsequent reattaching with a changed arrangement of part of the clamping device are required. Furthermore, the tensioning device according to the invention avoids the risk of machine parts falling out and the associated risk of injury to operating personnel or damage to the printing press due to incorrect conversion of the support element.
  • a tension wire 14 or other tensioning aid e.g. a plurality of clamping knobs

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

Abstract

The device according to the invention has a tensioning spindle (8) which is mounted rotatably in a cylinder gap (2) running symmetrically in the axial direction in the forme cylinder (1), is provided with at least two tensioning grooves (9, 10) for receiving one end (17) of a plate and, after a partial rotation, presses the other end (16) of the plate against a wall of the gap. According to the invention, the support element (11), serving as tensioning spindle support, is mounted on the tensioning spindle (8). <??>The invention can be used on all forme cylinders with a supported tensioning spindle. <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Spannen von Platten auf einen Formzylinder einer Rotationsdruckmaschine nach dem Oberbegriff des Anspruchs 1.The present invention relates to a device for clamping plates on a forme cylinder of a rotary printing press according to the preamble of claim 1.

Eine gattungsgemäße Vorrichtung zum Spannen von Platten auf einen Formzylinder einer Rotationsdruckmaschine ist aus dem deutschen Patent DE 33 39 185 C2 bekannt. Bei dieser Vorrichtung weist der Formzylinder eine in Achsrichtung verlaufende symmetrische Zylindergrube auf, in der eine mit zwei Längsschlitzen zur Aufnahme eines Plattenendes versehene, um ihre Achse drehbare Spannspindel angeordnet ist. An einer der beiden Grubenwände ist eine Spannspindelstütze befestigt, um der Gefahr, daß sich die Spannspindel aufgrund ihrer Länge durchbiegt, entgegenzuwirken. Da der Formzylinder rechtsdrehend oder linksdrehend verwendet werden kann, ist die Spannspindelstütze entsprechend der vorgesehenen Drehrichtung des Formzylinders an der rechten oder an der linken Grubenwand angeordnet.A generic device for clamping plates on a forme cylinder of a rotary printing press is known from the German patent DE 33 39 185 C2. In this device, the forme cylinder has a symmetrical cylindrical pit running in the axial direction, in which a clamping spindle which is rotatable about its axis and is provided with two longitudinal slots for receiving a plate end is arranged. A clamping spindle support is attached to one of the two pit walls in order to counteract the risk that the clamping spindle will bend due to its length. Since the forme cylinder can be used clockwise or counterclockwise, the clamping spindle support is arranged on the right or left pit wall in accordance with the intended direction of rotation of the forme cylinder.

Diese bekannte Spannvorrichtung hat den Nachteil, daß die Spannspindelstütze an der Grubenwand befestigt und insbesondere eingeklebt werden muß, um einem unbeabsichtigten Herauslösen der Stütze und einem Herausfallen von Maschinenteilen vorzubeugen. Damit ist eine Drehrichtungsumkehr des Formzylinders, wie sie z.B. bei einem Eindruckwerk benötigt wird, nicht möglich.This known tensioning device has the disadvantage that the tensioning spindle support has to be fastened to the pit wall and, in particular, has to be glued in order to prevent unintentional removal of the support and falling out of machine parts. This is a reversal of the direction of rotation of the forme cylinder, e.g. is not required for an impression unit.

Aufgabe der Erfindung ist es daher, eine Vorrichtung zum Spannen von Platten auf einen Formzylinder einer Rotationsdruckmaschine so auszubilden, daß die Drehrichtung des Formzylinders auch nach seinem Einbau noch frei wählbar ist und daß eine Anpassung der Spannvorrichtung an die gewählte Drehrichtung schnell und einfach möglich ist.The object of the invention is therefore to provide a device for tensioning plates on a forme cylinder of a rotary printing press in such a way that the direction of rotation of the forme cylinder can still be freely selected even after it has been installed, and that an adaptation of the tensioning device to the selected direction of rotation is possible quickly and easily.

Die vorgenannte Aufgabe wird erfindungsgemäß durch eine Vorrichtung zum Spannen von Platten mit den Merkmalen des Anspruchs 1 gelöst.The above object is achieved according to the invention by a device for tensioning plates with the features of claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.Advantageous developments of the invention are the subject of dependent claims.

Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispiels anhand der Figuren. Von den Figuren zeigen:

Fig. 1
eine erfindungsgemäße Spannvorrichtung, bei der die Spannspindel für rechtsdrehenden Betrieb des Formzylinders eingestellt ist und
Fig. 2
eine erfindungsgemäße Spannvorrichtung, bei der die Spannspindel für linksdrehenden Betrieb des Formzylinders eingestellt ist.
Further features and advantages of the invention result from the description of an embodiment with reference to the figures. From the figures show:
Fig. 1
a clamping device according to the invention, in which the clamping spindle is set for right-handed operation of the forme cylinder and
Fig. 2
a clamping device according to the invention, in which the clamping spindle is set for left-handed operation of the forme cylinder.

Fig. 1 zeigt ausschnittsweise einen Schnitt durch den Bereich eines Formzylinders 1, in dem eine Zylindergrube 2 ausgebildet ist. Die Zylindergrube 2 ist im wesentlichen aus einer zum Formzylinder 1 achsparallel angeordneten zylindrischen Bohrung 3 und zwei von der Oberfläche des Formzylinders ausgehend in Bezug auf die zylindrische Bohrung 3 tangential und zueinander symetrisch angeordnete Schlitze 4 und 5 zum Einführen von Druckplattenenden gebildet, wobei Wände 6 und 7 der Schlitze 4 und 5 zugleich Wände der Zylindergrube 2 sind. In der Zylindergrube 2 ist eine Spannspindel 8 drehbar gelagert. Die Spannspindel 8 weist zwei Spannuten 9 und 10 zur Aufnahme eines Plattenendes auf. Auf dem größeren der beiden durch die Spannuten 9 und 10 bestimmten Abschnitte der Umfangsoberfläche der Spannspindel 8 ist, in Umfangsrichtung gemessen, in gleichem Abstand von den Spannuten 9 und 10 ein Abstützelement 11 angeordnet. Das Abstützelement 11 ist vorzugsweise als Paßfeder ausgebildet, die mit einer Schraube 12 am Spannspindelkörper befestigt ist und die am Umfang mit der Spannspindel 8 geschliffen wird. Zum Ausgleich von Toleranzen zwischen der Zylindergrube 2 und der Paßfeder 11 kann die Paßfeder 11 durch Bleche 13 unterschiedlicher Dicke in der Höhe verstellt werden.1 shows a section of a section through the area of a forme cylinder 1 in which a cylinder pit 2 is formed. The cylinder pit 2 is essentially formed from a cylindrical bore 3 arranged axially parallel to the forme cylinder 1 and two slots 4 and 5 arranged tangentially and symmetrically with respect to the cylindrical bore 3 for introducing pressure plate ends, with walls 6 and 7 of the slots 4 and 5 are also walls of the cylinder pit 2. A clamping spindle 8 is rotatably mounted in the cylinder pit 2. The clamping spindle 8 has two flutes 9 and 10 for receiving a plate end. On the larger of the two sections of the circumferential surface of the clamping spindle 8 determined by the flutes 9 and 10, measured in the circumferential direction, a support element 11 is arranged at the same distance from the flutes 9 and 10. The support element 11 is preferably designed as a feather key which is fastened to the clamping spindle body with a screw 12 and which is ground on the circumference with the clamping spindle 8. To compensate for Tolerances between the cylinder pit 2 and the feather key 11, the feather key 11 can be adjusted in height by sheets 13 of different thickness.

Beim Aufspannen einer mit einem Spanndraht 14 versehenen Druckplatte 15 auf den Formzylinder 1 wird eine abgekantete Vorderkante 16 der Druckplatte 15 an der einen Oberkante der Zylindergrube 2 eingehängt. Eine den Spanndraht 14 aufweisende Hinterkante 17 der um den Formzylinder 1 herumgelegten Druckplatte 15 wird in die Zylindergrube 2 eingeführt. Dabei wird die Spannspindel 8 zunächst so eingestellt, daß eine der beiden Spannuten 9 oder 10 vor der Öffnung der Zylindergrube 2 steht. Dann wird die Spannspindel 8 so gedreht, daß die Hinterkante 17 in die Zylindergrube 2 hineingezogen wird. Dabei wird die Spannspindel 8 so weit gedreht, wie es für das ordnungsgemäße Spannen der Druckplatte 15 erforderlich ist.When a pressure plate 15 provided with a tensioning wire 14 is clamped onto the forme cylinder 1, a bent front edge 16 of the pressure plate 15 is hooked onto the one upper edge of the cylinder pit 2. A trailing edge 17, which has the tensioning wire 14, of the pressure plate 15 placed around the forme cylinder 1 is inserted into the cylinder pit 2. The clamping spindle 8 is initially set so that one of the two flutes 9 or 10 is in front of the opening of the cylinder pit 2. Then the clamping spindle 8 is rotated so that the rear edge 17 is drawn into the cylinder pit 2. The clamping spindle 8 is rotated as far as is necessary for the correct clamping of the pressure plate 15.

Welche der beiden Spannuten 9 oder 10 vor die Öffnung der Zylindergrube 2 zu stellen ist und in welche Richtung die Spannspindel 8 zum Spannen der Druckplatte 15 gedreht werden muß, hängt von der Drehrichtung des Formzylinders 1 ab. Fig. 1 zeigt die Spannspindel 8 mit gespannter Druckplatte 15 bei einem rechtsdrehenden Formzylinder 1. Die Vorderkante 16 der Druckplatte 15 ist an der linken Oberkante der Zylindergrube 2 eingehängt, und die Hinterkante 17 ist in der vom Abstützelement 11 aus gesehen rechten Spannut 9 eingehängt. Zum Spannen der Druckplatte 15 wird die Spannspindel 8 nach links gedreht. Dabei wird das Abstützelement 11 gegen die Grubenwand 7 gedreht und stützt so die Spannspindel 8 ab. Fig. 2 zeigt eine erfindungsgemäße Spannvorrichtung mit gespannter Druckplatte bei einem linksdrehenden Formzylinder 1. Die Spannvorrichtung nach Fig. 2 entspricht in allen Einzelheiten der anhand von Fig. 1 beschriebenen Spannvorrichtung. Deshalb wird hier auf eine erneute detaillierte Beschreibung der Elemente der Vorrichtung verzichtet. In Fig. 2 sind die den Elementen aus Fig. 1 entsprechenden Elemente mit gleichen Bezugszeichen versehen. Die in Fig. 2 dargestellte Spannvorrichtung unterscheidet sich von der in Fig. 1 dargestellten lediglich insoweit, als die Vorderkante 16 der Druckplatte 15 an der rechten Oberkante der Zylindergrube 2 eingehängt ist und als die Hinterkante 17 der Druckplatte 15 in die vom Abstützelement 11 aus gesehen linke Spannut 10 eingehängt ist. Zum Spannen der Druckplatte 15 wird die Spannspindel 8 nach rechts gedreht.Which of the two flutes 9 or 10 is to be placed in front of the opening of the cylinder pit 2 and in which direction the clamping spindle 8 has to be rotated for clamping the pressure plate 15 depends on the direction of rotation of the forme cylinder 1. Fig. 1 shows the clamping spindle 8 with the pressure plate 15 under tension with a right-hand rotating forme cylinder 1. The front edge 16 of the pressure plate 15 is hooked onto the left upper edge of the cylinder pit 2, and the rear edge 17 is hooked into the right flute 9 as seen from the support element 11. To clamp the pressure plate 15, the clamping spindle 8 is turned to the left. The support element 11 is rotated against the pit wall 7 and thus supports the clamping spindle 8. FIG. 2 shows a tensioning device according to the invention with a tensioned pressure plate in a left-hand rotating forme cylinder 1. The tensioning device according to FIG. 2 corresponds in all details to the tensioning device described with reference to FIG. 1. A detailed description of the elements of the device is therefore omitted here. In FIG. 2, the elements corresponding to the elements from FIG. 1 are provided with the same reference symbols. The clamping device shown in Fig. 2 differs from that shown in FIG. 1 only insofar as the front edge 16 of the pressure plate 15 is hooked onto the right upper edge of the cylinder pit 2 and as the rear edge 17 of the pressure plate 15 is hooked into the flute 10 seen from the support element 11. To clamp the pressure plate 15, the clamping spindle 8 is turned to the right.

Die vorliegende Erfindung weist den Vorteil auf, eine mit einem Spanndraht 14 oder einer sonstigen Spannhilfe, wie z.B. einer Mehrzahl von Spannoppen, versehene Druckplatte 15 so auf den Formzylinder 1 aufspannen zu können, daß dieser wahlweise rechtsdrehend oder linksdrehend betrieben werden kann. Soll der Formzylinder 1 mit einer anschließend aufzuspannenden Druckplatte in entgegengesetzter Drehrichtung betrieben werden, so braucht die Spannspindel 8 beim Einspannen der Druckplatte 15 nur in die entsprechende Ausgangsstellung gebracht zu werden, ohne daß dabei Änderungen an der Spannvorrichtung, wie z.B. ein Auswechseln von Teilen und insbesondere ein Herauslösen und anschließendes Neubefestigen mit geänderter Anordnung eines Teils der Spannvorrichtung erforderlich sind. Weiterhin wird durch die erfindungsgemäße Spannvorrichtung vermieden, daß durch fehlerhaften Umbau des Abstützelements die Gefahr herausfallender Maschinenteile und die damit verbundene Gefahr einer Verletzung des Betriebspersonals bzw. einer Beschädigung der Druckmaschine besteht.The present invention has the advantage of being equipped with a tension wire 14 or other tensioning aid, e.g. a plurality of clamping knobs, provided pressure plate 15 so that it can be clamped on the forme cylinder 1 so that it can be operated either clockwise or counterclockwise. If the forme cylinder 1 is to be operated with a printing plate to be subsequently clamped in the opposite direction of rotation, the clamping spindle 8 only needs to be brought into the corresponding starting position when the printing plate 15 is clamped, without any changes to the clamping device, e.g. replacement of parts and in particular loosening and subsequent reattaching with a changed arrangement of part of the clamping device are required. Furthermore, the tensioning device according to the invention avoids the risk of machine parts falling out and the associated risk of injury to operating personnel or damage to the printing press due to incorrect conversion of the support element.

Claims (3)

Vorrichtung zum Spannen von Platten auf einen Formzylinder einer Rotationsdruckmaschine, der eine in Achsrichtung verlaufende symmetrische Zylindergrube aufweist, in der eine mit wenigstens zwei Spannuten zur Aufnahme eines Plattenendes versehene, um ihre Achse drehbare Spannspindel mit einer Einrichtung zum Spannen von Platten angeordnet ist, wobei die Spannspindel nach einer Teildrehung das andere Plattenende gegen eine Grubenwand drückt, und mit einem Abstützelement zum Verhindern eines Durchbiegens der Spannspindel,

dadurch gekennzeichnet, daß

das Abstützelement (11) an der Spannspindel (8) angebracht ist.Device for clamping plates on a forme cylinder of a rotary printing press, which has an axially extending symmetrical cylinder pit, in which a spindle provided with at least two flutes for receiving a plate end and rotatable about its axis is arranged with a device for clamping plates, the After a partial rotation, the clamping spindle presses the other plate end against a pit wall, and with a support element to prevent the clamping spindle from bending,

characterized in that

the support element (11) is attached to the clamping spindle (8). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Spannspindel (8) zwei Spannuten (9, 10) aufweist und daß das Abstützelement (11), auf der Umfangsoberfläche gemessen, zu den beiden Spannuten (9, 10) in gleichem Abstand angeordnet ist.Device according to Claim 1, characterized in that the clamping spindle (8) has two clamping grooves (9, 10) and that the support element (11), measured on the peripheral surface, is arranged at the same distance from the two clamping grooves (9, 10). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Abstützelement (11) als Paßfeder ausgebildet ist.Apparatus according to claim 1 or 2, characterized in that the support element (11) is designed as a feather key.
EP91104495A 1990-04-10 1991-03-22 Device to tension plates onto a form cylinder of a rotary printing machine Expired - Lifetime EP0451574B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9004130U 1990-04-10
DE9004130U DE9004130U1 (en) 1990-04-10 1990-04-10 Device for clamping plates onto a forme cylinder of a rotary printing press

Publications (2)

Publication Number Publication Date
EP0451574A1 true EP0451574A1 (en) 1991-10-16
EP0451574B1 EP0451574B1 (en) 1994-06-15

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EP91104495A Expired - Lifetime EP0451574B1 (en) 1990-04-10 1991-03-22 Device to tension plates onto a form cylinder of a rotary printing machine

Country Status (5)

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US (1) US5074210A (en)
EP (1) EP0451574B1 (en)
JP (1) JP3088477B2 (en)
CA (1) CA2037341C (en)
DE (2) DE9004130U1 (en)

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DE9116368U1 (en) * 1991-06-15 1992-08-20 Koenig & Bauer AG, 8700 Würzburg Device for attaching printing blankets to transfer or offset cylinders
DE4138925C2 (en) * 1991-11-27 1995-03-09 Roland Man Druckmasch Device for attaching a flexible pressure plate
DE4238343C2 (en) * 1992-11-13 2003-03-27 Kocher & Beck Gmbh & Co Rotati Cliché fixture
DE4444208A1 (en) * 1993-12-14 1995-06-22 Krause Biagosch Gmbh Appts. for exposure of flexible printing forms on rotary cylinder
DE19729375A1 (en) * 1997-07-09 1999-01-14 Ltg Lufttechnische Gmbh Device for fastening a flexible plate on the circumference of the cylinder of a painting machine
DE10060171C1 (en) * 2000-12-04 2002-05-23 Koenig & Bauer Ag Sleeve retainer for printing cylinder has sprung detent to engage ridge formed on flange at end of the sleeve panel
US6578484B2 (en) 2001-06-14 2003-06-17 Masthead International, Inc. Printing plate lock-up assemblies having jaw assembly and registration pin assembly
US6739961B2 (en) * 2001-08-02 2004-05-25 Donald E. Haney Abrasive band tightening apparatus
US20080216691A1 (en) * 2007-03-05 2008-09-11 Stephens Ronald F Printing plate lock mechanisms
US20220168868A1 (en) * 2020-12-01 2022-06-02 Fortune Extendables Corp. Abrasive wheel which can be provided with a sandpaper

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US4495865A (en) * 1983-03-15 1985-01-29 Komori Printing Machinery Co., Ltd. Plate clamping device of web-fed rotary printing press
DE3339185C2 (en) * 1983-10-28 1986-01-30 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for clamping plates on a forme cylinder of a rotary printing press
EP0330736A2 (en) * 1988-02-29 1989-09-06 Rockwell International Corporation Tensionless plate lock-up

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SU371093A1 (en) * 1970-04-17 1973-02-22 , вители DEVICE FOR FIXING FORM PLATE ON CYLINDER

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US4495865A (en) * 1983-03-15 1985-01-29 Komori Printing Machinery Co., Ltd. Plate clamping device of web-fed rotary printing press
DE3339185C2 (en) * 1983-10-28 1986-01-30 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for clamping plates on a forme cylinder of a rotary printing press
EP0330736A2 (en) * 1988-02-29 1989-09-06 Rockwell International Corporation Tensionless plate lock-up

Also Published As

Publication number Publication date
EP0451574B1 (en) 1994-06-15
CA2037341C (en) 1993-08-17
JPH04223167A (en) 1992-08-13
JP3088477B2 (en) 2000-09-18
DE9004130U1 (en) 1990-06-13
CA2037341A1 (en) 1993-08-17
US5074210A (en) 1991-12-24
DE59101913D1 (en) 1994-07-21

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