EP0603245B1 - Process and device for carrying away printing plates from a printing machine - Google Patents

Process and device for carrying away printing plates from a printing machine Download PDF

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Publication number
EP0603245B1
EP0603245B1 EP92919010A EP92919010A EP0603245B1 EP 0603245 B1 EP0603245 B1 EP 0603245B1 EP 92919010 A EP92919010 A EP 92919010A EP 92919010 A EP92919010 A EP 92919010A EP 0603245 B1 EP0603245 B1 EP 0603245B1
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EP
European Patent Office
Prior art keywords
printing
magazine
printing plate
carriage
plate
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.)
Expired - Lifetime
Application number
EP92919010A
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German (de)
French (fr)
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EP0603245A1 (en
Inventor
Hermann Beisel
Peter Theobald Blaser
Dieter Hauck
Rudolf Hutzenlaub
Helmut Friedrich Jäger
Hans-Georg Jahn
Robert Müller
Anton Rodi
Nikolaus Spiegel
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Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Publication of EP0603245A1 publication Critical patent/EP0603245A1/en
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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
    • 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
    • B41F27/1206—Feeding to or removing from the forme cylinder

Definitions

  • the invention relates to a device designed as a magazine for removing (removing) printing plates from a printing plate cylinder of a printing press, in particular for an automatic or semi-automatic printing plate change, with a plate removal device which has activatable (first) holding means for the respective printing plate.
  • a device of the type mentioned is known from European patent application 0 435 410. It serves to automate a printing plate change.
  • the magazine records old, used records.
  • the printing plate used is unclamped at one end on the printing plate cylinder and then - by appropriate rotation of the printing plate cylinder - partially inserted into the magazine.
  • the other end of the printing plate is then released from the clamping device of the printing plate cylinder and the entire printing plate with the plate removal device is introduced into the magazine.
  • a new printing plate to be used is then removed from the magazine by means of the plate feed device.
  • the plate removal device of the known device has suction cups which can be moved by means of a piston / cylinder unit. Since the cylinder of the piston / cylinder unit has a length corresponding to the piston rod and its If the length of the magazine adjoins the path of movement of the piston, a correspondingly long design is required.
  • the invention has for its object to provide a device of the type mentioned, which allows the removal of printing plates with a simple structure and safe operation and small designs.
  • the (first) holding means are arranged on a first carriage which can be moved along a first guide approximately over the entire length of the device in the interior of the magazine. Because the first carriage can be moved approximately over the entire length of the device inside the magazine, old, used printing plates can be completely retracted into the magazine cassette in one operation. This would not be possible using a conventional piston / cylinder unit, since the latter itself has a certain length that is not available for the adjustment path.
  • the first holding means are preferably designed as activatable first suction elements.
  • the first carriage can be moved by means of a drive device having a magnetic coupling.
  • the magnetic coupling is not a rigid but a flexible coupling and it is also possible to move the first carriage over the entire length of the device.
  • the drive device has a non-ferromagnetic tube that extends along the path of movement of the first carriage and that of a ferromagnetic component attached to the carriage, in particular Steel ring, is longitudinally displaceably enclosed, a magnetic piston which is longitudinally displaceable by a pressure medium and which forms the magnetic coupling with the ferromagnetic component is arranged in the tube. If the magnetic piston is displaced in the tube in the desired manner by the pressure medium, the ferromagnetic component and thus the first carriage are carried along its guide.
  • the guide preferably consists of two spaced-apart guide parts, in particular guide rods. These preferably run parallel to one another. The two guides are arranged in the side areas of the magazine.
  • the drive device is preferably located between the two guide parts.
  • one of the guide parts can be formed by the drive device.
  • the drive device There is therefore a corresponding guide rod on one side of the magazine and the tube provided with a magnetic piston on the other side, the ferromagnetic component, in particular the steel ring, being mounted on the tube so as to be longitudinally displaceable, and a guide is also formed in this respect.
  • the first holding means can be activated (this also applies to the second holding means mentioned later), that is, their function of holding or not holding the printing plates can be switched on and off. Furthermore, the activation also includes the possibility that the holding means can be displaced transversely to the plane of the printing plates in order to be able to step against the surface of the corresponding printing plate.
  • the holding means are preferably designed as suction members, that is to say they have suction cups which operate by means of a vacuum which can be switched on.
  • At least one of the first holding means itself is also movably mounted on the first carriage transversely to the plane of the pressure plates.
  • the first holding means can therefore not only be lengthened or shortened in the longitudinal direction in the direction of the adjacent pressure plate, but can also be shifted overall in this direction. This is done in an upper position of the carriage by means of a positive control such that the preferably angled printing plate trailing edge of the printing plate used passes under a holding edge of the cassette when it is inserted into the cassette.
  • the carriage is in a lower position.
  • the carriage is then moved into the above-mentioned position, the printing plate cylinder simultaneously making a reverse rotation and thus "unwinding" the printing plate from the outer surface of the printing plate cylinder.
  • the positive control When the carriage is moved into the upper position, the positive control then comes into operation, which shifts the mentioned first holding means and thus the trailing edge end region of the printing plate in the direction of the cassette receiving the printing plate used, so that the printing plate with the angled trailing edge under the mentioned holding edge the cassette.
  • the positive control is preferably formed by a run-up slope on which a scanning element for moving, in particular Swiveling, the movably mounted first holding means runs up.
  • At least one holding-down device arranged in the lower region of the magazine is acted upon by the printing plate front end and is thereby also pressed into the cassette.
  • the hold-down device remains in this position, while the holding means push the printing plate down a little, so that the printing plate leading edge also comes under a holding edge of the cassette.
  • the pressure plate to be removed is thus completely and securely accommodated in the cassette.
  • At least one guide roller for inserting the printing plate used into the cassette is arranged in the lower end of the magazine. This guide roller facilitates the feeding of the old, used printing plates into the magazine cassette.
  • the printing unit 2 has a device designed as a magazine 4.
  • the magazine 4 which is provided in a printing press 3 with a plurality of printing units 2 on each printing unit 2 of the printing press 3, a newly used printing plate can also only be fed in or an already used printing plate can only be removed (FIGS. 1 to 9).
  • the magazine 4 is in its starting position (vertical position). In this idle state, the magazine 4 is secured against tipping (locking). Normal machine operation (printing operation) is only possible in this lower, vertical position of magazine 4.
  • the magazine 4 has two receiving shafts 5 and 6, into each of which a cassette 7 or 8 can be inserted from above (FIG. 1).
  • the cassette 7 is used to hold old printing plates already used in the printing press 3.
  • the cassette 7 is designed such that it can accommodate several, for example five, printing plates used. These printing plates form a stack of printing plates in the interior of the cassette 7, that is to say the individual printing plates lie flat on one another.
  • the cassette 8 is used to hold new printing plates that are still to be used. It can also have several, in particular five, printing plates at the same time record, these printing plates are also assigned to each other over a large area. To remove the printing plates used, it is therefore only necessary to pull the cassette 7 out of the receiving shaft 5.
  • the cassette 8 can be equipped with new printing plates that are still to be used. If this has taken place, the cassette 8 is inserted into the receiving shaft 6 of the magazine 4, so that it is available for feeding to the printing plate cylinder 1 of the corresponding printing unit 2.
  • the individual positions of the magazine 4 which are assumed for removing and / or feeding printing plates are explained below. If a printing plate 9 to be used is to be fed to the printing plate cylinder 1, the magazine 4 moves vertically upwards into a central position, as shown in FIG. 2, and then pivots into an inclined position, as shown in FIG. 3, for example about 45 °. The printing plate 9 to be used is then fed to the printing plate cylinder 1 and clamped thereon by means of a plate feed device of the magazine 4 to be explained in more detail (FIG. 4). The magazine 1 then pivots back into its vertical position and then lowers again into the lower position (starting position) according to FIG. 5.
  • the printing plate 9 When the print job has been completed, the printing plate 9 must be removed from the printing plate cylinder 1.
  • a lifting device in turn lifts the magazine 4 into the middle position (FIG. 6).
  • This is followed - according to FIG. 7 - by pivoting into the inclined position and - by unclamping the rear edge of the plate and turning the printing plate cylinder 1 backwards - the printing plate 10 used is partially pushed into the magazine 4 (FIG. 7).
  • the printing plate 10 used is then completely replaced by a plate discharge device of the plate to be described in more detail below Magazine 4 completely pulled into the cassette 7. Now the magazine 4 pivots back into its vertical position and then lowers - according to FIG. 9 - into the starting position.
  • FIGS. 10 and 11 the magazine 4 is shown in FIGS. 10 and 11 in a horizontal position relative to the side edges of the drawing sheet.
  • the positions shown in FIGS. 10 and 11 correspond to the inclined positions according to FIGS. 3, 4, 7 and 8.
  • the magazine 4 is constructed in layers. It has an outer layer 11 from which the cassette 7 is received. A plate removal device 13 assigned to the above cassette 7 is accommodated in a subsequent layer 12. The cassette 8 is arranged in a subsequent layer 14. A further layer 15 receives a plate feed device 16 which interacts with the pressure plates 9 of the cassette 8.
  • the plate removal device 13 has first holding means 17, which are designed as activatable first suction elements 18.
  • the suction cups 19 of the first suction members 18 can be extended in the direction of the pressure plates 10 (in FIGS. 10 and 11 - for the sake of clarity - only one pressure plate 9 or 10 is shown).
  • the first suction elements 18 are arranged on a first carriage 20 which can be moved along a first guide 21.
  • the guide 21 has two guide parts 22 which are spaced apart from one another and run parallel to one another and which are designed as guide rods 23.
  • the guide rods 23 are surrounded by guide parts 24 of the first carriage 20 with a slight play.
  • the first carriage 20 can be moved along the first guide 21 by means of a drive device 25.
  • the drive device 25 has a fixed, non-ferromagnetic tube 26 (for example an aluminum tube) which extends from the top to the bottom of the magazine 4. Inside the tube 26 there is a magnetic piston 27 which can be moved back and forth within the tube 26 by means of a pressure medium and can be positioned in the desired positions.
  • a ferromagnetic component 28, which is designed as a steel ring 29, is located on the first carriage 20. A movement of the magnetic piston 27 therefore has the effect that the steel ring 29 and thus the carriage 20 is taken along via the magnetic field.
  • a suction element 18 is arranged on both sides of the drive device 25.
  • Each suction element 18 is fastened to a lever 30 which can be pivoted in the direction of the pressure plate 10 by means of a hinge 31.
  • the position of the levers 30 is determined by a positive control 32 (see also FIG. 13) which is formed by a roller 33 which is connected to each lever 30 and which in FIG a stationary guide rail 34 runs.
  • Each guide rail 34 has in the upper region of the magazine 4 a run-up slope 35 (FIG. 13), so that when the carriage 20 moves into an upper position, the rollers 33 run onto the run-up slopes 35 and thereby the lever 30 and thus the suction members 18 in the direction pivot onto the pressure plate 10.
  • Springs 115 serve to return the lever 30 and to rest the rollers 33 on the ramp 35.
  • actuatable hold-down devices 36 are arranged on opposite sides, which serve to act upon the pressure plate 10 in this area. Furthermore, 4 guide rollers 37, 38 and 39 are arranged in the lower region of the magazine.
  • the magazine 4 is first brought into the required inclined position, corresponding to FIGS. 6 and 7.
  • a rear edge clamping device 40 of the printing plate cylinder 1 then opens and releases the angled printing plate rear edge 41 clamped there.
  • the rear end of the pressure plate 10 strikes against the guide roller 37 (FIG. 13).
  • the printing plate cylinder 1 backwards (arrow 42)
  • the printing plate 10 is pushed into the cassette 7 of the magazine 4.
  • the guide rollers 37, 38 and 39 help in inserting the trailing edge end of the printing plate 10.
  • Guide rails 116 can be arranged which are in cutouts in the Slide the pressure plate trailing edge 41. This insertion is shown in FIG. 13 with a dotted line and in FIG. 14 with an excellent line. If the pressure plate 10 has been moved approximately one third into the magazine 4, the suction elements 18 of the carriage 20 located in the lowest position within the magazine 4 are activated, which That is, the suction cups 19 move in the direction of the pressure plate 10 to be held and suck on the pressure plate 10. Now the carriage 20 moves while simultaneously turning the printing plate cylinder 1 backwards into its upper position, as a result of which the printing plate 10 is completely drawn into the magazine 4. Here, the front edge 44 of the pressure plate 10 is also unclamped.
  • the printing plates 10 used are removed from the magazine 4 in a simple manner by pulling the cassette 7 out of the associated receiving shaft 5.
  • a special removal technique is carried out, which will be discussed in more detail below, and it is also possible to place spacers between the individual pressure plates 9, so that the formation of a vacuum is prevented.
  • the spacers are preferably designed as plastic tongues. They can be clipped on preferably in a snap-fit seat in the edge areas. When loading a cassette 8, spacers are first clipped in before another printing plate 9 is placed on a printing plate 9 already in the cassette 8. The spacers are so flexible that they dodge when removing the underlying pressure plate.
  • the magazine 4 In order to feed a pressure plate 9 from the cassette 8 to the printing plate cylinder 1 by means of the plate feed device 16, the magazine 4 is - as already mentioned - in its inclined position in which support rollers 52 on the bearer rings 53 assigned to the printing plate cylinder 1 support.
  • the plate feed device 16 has second holding means 55 on a second carriage 54, which are also designed as activatable suction members 56 (second suction members). The suction members are - according to FIGS.
  • suction members 56 arranged in the lower row assigned to the printing plate cylinder 1 are fastened to levers 57 which can be pivoted about axes 58.
  • Pressure cylinders 59 are provided for actuating the levers 57; furthermore, the levers 57 are acted upon by a spring 60.
  • a preferably optically operating sensor 61 is arranged in the upper region of the magazine 4 and monitors the position of the associated pressure plate 9, in particular its position of the rear edge 41.
  • An activatable depressing device 62 for loading the pressure plates 9 is arranged between the upper and the middle row of suction elements. Furthermore, the magazine 4 has at its lower end a displaceable pressing element 63 which is designed as a pressure roller 64 which can be displaced radially to the printing plate cylinder 1.
  • the second carriage 54 can be moved along a second guide 66 (FIG. 12) by means of a piston / cylinder unit 65.
  • the second guide is formed by fixed profile rails 67, in which guide rollers 68 of the carriage 54 run.
  • the lowest suction members 56 assigned to the printing plate cylinder 1 can first come into operation, the levers 57 being in their undeflected position. Then the suction members 56 of the middle row of suckers and then the suction members 56 of the top row of suckers become active. Another order is conceivable, for example first the middle suction cups and then the ones on the edge.
  • the suction element rows which does not take place simultaneously, but is carried out one after the other, the new printing plate 9 lying on top is raised in such a way that there is no or only a very small amount to the additional printing plate 9 located below low vacuum forms. This ensures that only one pressure plate 9 is raised.
  • the aforementioned spacers can be arranged between the individual pressure plates 9, which additionally counteracts the formation of a vacuum. If the pressure plate 9 is raised, the carriage 54 is pushed in the direction of the pressure plate cylinder 1 by means of the piston / cylinder unit 65. The front edge 44 of the pressure plate 9 enters the front edge clamping device 69 of the pressure plate cylinder 1, which was previously positioned accordingly. In the ancestor of the carriage 54 described above, the angled pressure plate rear edge 41 slides under the sensor 61, which registers the correct transport of the pressure plate 9.
  • a bypass is activated in the air supply to the suction devices of the suction members 56, since a strong suction air is only necessary for the suction of the pressure plate 9.
  • the suction devices of the bottom and middle rows of the suction members 56 are pressureless or only subjected to a weak vacuum; the pressure plate 9 is therefore only held by the top row of suction cups.
  • the purpose of this is that the pressure plate 9 can align better.
  • the front edge clamping device 69 is closed, so that the front edge 44 of the pressure plate 9 is firmly clamped.
  • the printing plate cylinder 1 rotates in the forward direction and pulls the printing plate 9 onto its outer surface.
  • the suction elements Due to the bypass, the suction elements are only subjected to a slight negative pressure, so that they still hold the pressure plate, but this can be moved on the suction elements by the rotation of the plate cylinder. Before the two upper rows of suction pads pass through the pressure plate trailing edge, these are each depressurized and brackets 70 ensure that the angled trailing edge glides past the suction elements without collision.
  • the pressure plate 9 Due to their proximity to the printing plate cylinder 1 the pressure plate 9 is relatively rigid in the area of the lower row of suction elements 56, so that a lever 57, which is designed as a plate with a hinge and on which the entire row of suction devices is arranged, or a plurality of levers 57 in its in order to pass through the angled pressure plate rear edge 41 the position shown in Figure 10 can be pivoted by means of one or more cylinders 59 so that the pressure plate rear edge 41 can pass the row of suction cups properly.
  • the pressure roller 64 is then moved radially in the direction of the printing plate cylinder 1, as a result of which the angled printing plate rear edge 41 is pressed into the rear edge clamping device 40 of the printing plate cylinder 1.
  • the trailing edge clamping device 40 closes and then clamps the printing plate by appropriate displacement in the circumferential direction of the printing plate cylinder 1. Then the carriage 54 moves back to its original position in order to grasp the next printing plate 9 at the given time.
  • the device moves back to its original position by depressurizing the cylinders 59 so that the springs 60 can cause the lever (s) 57 to return to their original position. Then the depressing device 62 then comes into action, which ensures that the remaining printing plates 9 remain clean in the cassette 8 and cannot tip out, in particular when the magazine 4 is pivoted back into its vertical position.
  • FIG. 10 shows that elastic brackets 70 are associated with the upper and middle rows of the suction members 56.
  • the elasticity of the brackets 70 allows the pressure plate 9 to be used to be sucked in, that is to say the brackets 70 do not interfere with this process.
  • the bracket 70 ensure that the angled pressure plate trailing edge 41 does not get caught on the suckers of the suction elements 56.

Abstract

PCT No. PCT/EP92/02056 Sec. 371 Date May 12, 1994 Sec. 102(e) Date May 12, 1994 PCT Filed Sep. 7, 1992 PCT Pub. No. WO93/04863 PCT Pub. Date Mar. 18, 1993.A device in the form a magazine is disclosed for carrying away used printing plates from the plate cylinder of a printing machine. The device applies in particular to the automatic exchange of printing plates. The device has an arrangement for carrying away the plates with (first) holders for each printing plate capable of being activated. The (first) holders are arranged on a (first) carriage that can be moved along a (first) guide substantially over the whole length of the device, inside the magazine.

Description

Die Erfindung betrifft eine als Magazin ausgebildete Vorrichtung zum Abführen (Entfernen) von Druckplatten von einem Druckplattenzylinder einer Druckmaschine, insbesondere für einen automatischen oder halbautomatischen Druckplattenwechsel, mit einer Plattenabführeinrichtung, die aktivierbare (erste) Haltemittel für die jeweilige Druckplatte aufweist.The invention relates to a device designed as a magazine for removing (removing) printing plates from a printing plate cylinder of a printing press, in particular for an automatic or semi-automatic printing plate change, with a plate removal device which has activatable (first) holding means for the respective printing plate.

Eine Vorrichtung der eingangs genannten Art ist aus der europäischen Patentanmeldung 0 435 410 bekannt. Sie dient der Automatisierung eines Druckplattenwechsels. Das Magazin nimmt alte, verwendete Platten auf. Zum Abführen wird die verwendete Druckplatte einendig am Druckplattenzylinder losgespannt und dann - durch entsprechende Drehung des Druckplattenzylinders - in das Magazin teilweise eingeschoben. Anschließend wird das andere Ende der Druckplatte von der Spannvorrichtung des Druckplattenzylinders freigegeben und die gesamte Druckplatte mit der Plattenabführeinrichtung in das Magazin eingebracht. Anschließend wird dann eine neue, zu verwendende Druckplatte dem Magazin mittels der Plattenzuführeinrichtung entnommen. Dabei wird zunächst das eine Ende der Druckplatte in die entsprechende Klemmvorrichtung des Druckplattenzylinders eingesteckt und dort festgeklemmt und dann - durch Drehung des Druckplattenzylinders - die Druckplatte vollständig aus dem Magazin heraus- und um die Mantelfläche des Druckplattenzylinders herumgezogen. Dann wird das andere Ende der Druckplatte eingespannt und es erfolgt ein Spannen in Umfangsrichtung. Die Plattenabführeinrichtung der bekannten Vorrichtung weist mittels Kolben/Zylinder-Einheit verfahrbare Saugnäpfe auf. Da der Zylinder der Kolben/Zylinder-Einheit eine der Kolbenstange entsprechende Länge aufweist und seine Längserstreckung an den Bewegungsweg des Kolbens anschließt, ist eine entsprechend lange Bauform des Magazins erforderlich.A device of the type mentioned is known from European patent application 0 435 410. It serves to automate a printing plate change. The magazine records old, used records. For removal, the printing plate used is unclamped at one end on the printing plate cylinder and then - by appropriate rotation of the printing plate cylinder - partially inserted into the magazine. The other end of the printing plate is then released from the clamping device of the printing plate cylinder and the entire printing plate with the plate removal device is introduced into the magazine. Then a new printing plate to be used is then removed from the magazine by means of the plate feed device. First, one end of the printing plate is inserted into the corresponding clamping device of the printing plate cylinder and clamped there and then - by rotating the printing plate cylinder - the printing plate is completely pulled out of the magazine and around the outer surface of the printing plate cylinder. Then the other end of the pressure plate is clamped and there is a clamping in the circumferential direction. The plate removal device of the known device has suction cups which can be moved by means of a piston / cylinder unit. Since the cylinder of the piston / cylinder unit has a length corresponding to the piston rod and its If the length of the magazine adjoins the path of movement of the piston, a correspondingly long design is required.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die bei einfachem Aufbau und sicherer Funktionsweise sowie kleiner Bauformen das Abführen von Druckplatten ermöglicht.The invention has for its object to provide a device of the type mentioned, which allows the removal of printing plates with a simple structure and safe operation and small designs.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die (ersten) Haltemittel an einem ersten Wagen angeordnet sind, der entlang einer ersten Führung etwa über die gesamte Vorrichtungslänge im Innern des Magazins verfahrbar ist. Dadurch, daß der erste wagen etwa über die gesamte Vorrichtungslänge im Innern des Magazins verfahren werden kann, sind alte, verwendete Druckplatte vollständig in die Kassette des Magazins mit einem Arbeitsgang einziehbar. Dies wäre nicht möglich, mittels einer herkömmlichen Kolben/Zylinder-Einheit, da letztere selbst eine bestimmte Länge aufweist, die für den Verstellweg nicht zur Verfügung steht.This object is achieved in that the (first) holding means are arranged on a first carriage which can be moved along a first guide approximately over the entire length of the device in the interior of the magazine. Because the first carriage can be moved approximately over the entire length of the device inside the magazine, old, used printing plates can be completely retracted into the magazine cassette in one operation. This would not be possible using a conventional piston / cylinder unit, since the latter itself has a certain length that is not available for the adjustment path.

Die ersten Haltemittel sind vorzugsweise als aktivierbare erste Saugorgane ausgebildet.The first holding means are preferably designed as activatable first suction elements.

Besonders vorteilhaft ist es, wenn der erste wagen mittels einer eine Magnetkopplung aufweisenden Antriebseinrichtung verfahrbar ist. Die Magnetkopplung stellt keine starre sondern eine flexible Kopplung dar und es ist überdies möglich mit ihr den ersten Wagen über die gesamte Vorrichtungslänge zu verfahren.It is particularly advantageous if the first carriage can be moved by means of a drive device having a magnetic coupling. The magnetic coupling is not a rigid but a flexible coupling and it is also possible to move the first carriage over the entire length of the device.

Insbesondere ist vorgesehen, daß die Antriebseinrichtung ein nicht ferromagnetisches Rohr aufweist, das sich entlang der Bewegungsbahn des ersten Wagens erstreckt und das von einem ferromagnetischen, am Wagen befestigten Bauteil, insbesondere Stahlring, längsverschieblich umschlossen ist, wobei im Rohr ein von einem Druckmedium längsverfahrbarer magnetischer Kolben angeordnet ist, der mit dem ferromagnetischen Bauteil die Magnetkopplung bildet. Wird also der magnetische Kolben durch das Druckmedium in gewünschter weise im Rohr verschoben, so wird das ferromagnetische Bauteil und damit der erste wagen entlang seiner Führung mitgenommen. Die Führung besteht vorzugsweise aus zwei beabstandet zueinander liegenden Führungsteilen, insbesondere Führungsstangen. Diese verlaufen bevorzugt parallel zueinander. Die beiden Führungen sind in den Seitenbereichen des Magazins angeordnet. Die Antriebseinrichtung befindet sich vorzugsweise zwischen den beiden Führungsteilen.In particular, it is provided that the drive device has a non-ferromagnetic tube that extends along the path of movement of the first carriage and that of a ferromagnetic component attached to the carriage, in particular Steel ring, is longitudinally displaceably enclosed, a magnetic piston which is longitudinally displaceable by a pressure medium and which forms the magnetic coupling with the ferromagnetic component is arranged in the tube. If the magnetic piston is displaced in the tube in the desired manner by the pressure medium, the ferromagnetic component and thus the first carriage are carried along its guide. The guide preferably consists of two spaced-apart guide parts, in particular guide rods. These preferably run parallel to one another. The two guides are arranged in the side areas of the magazine. The drive device is preferably located between the two guide parts.

Alternativ ist es jedoch auch möglich, daß eines der Führungsteile von der Antriebseinrichtung gebildet ist. Mithin befindet sich auf einer Seite des Magazins eine entsprechende Führungsstange und auf der anderen Seite das mit magnetischem Kolben versehene Rohr, wobei das ferromagnetische Bauteil, insbesondere der Stahlring auf dem Rohr längsverschieblich lagert und insofern ebenfalls eine Führung gebildet ist.Alternatively, however, it is also possible for one of the guide parts to be formed by the drive device. There is therefore a corresponding guide rod on one side of the magazine and the tube provided with a magnetic piston on the other side, the ferromagnetic component, in particular the steel ring, being mounted on the tube so as to be longitudinally displaceable, and a guide is also formed in this respect.

Wie bereits erwähnt, sind die ersten Haltemittel aktivierbar (dies gilt auch für die später noch erwähnten zweiten Haltemittel), das heißt, ihre Funktion, die Druckplatten zu halten oder nicht zu halten kann ein- und ausgeschaltet werden. Ferner umfaßt das Aktivieren jedoch auch noch die Möglichkeit, daß die Haltemittel quer zur Ebene der Druckplatten verlagerbar sind, um gegen die Oberfläche der entsprechenden Druckplatte treten zu können. Vorzugsweise sind die Haltemittel - wie bereits erwähnt - als Saugorgane ausgebildet, das heißt, sie weisen Saugnäpfe auf, die mittels einschaltbarem Unterdruck arbeiten.As already mentioned, the first holding means can be activated (this also applies to the second holding means mentioned later), that is, their function of holding or not holding the printing plates can be switched on and off. Furthermore, the activation also includes the possibility that the holding means can be displaced transversely to the plane of the printing plates in order to be able to step against the surface of the corresponding printing plate. As already mentioned, the holding means are preferably designed as suction members, that is to say they have suction cups which operate by means of a vacuum which can be switched on.

Zusätzlich zu der bei allen Haltemitteln möglichen Verlagerbarkeit in Richtung quer zur Ebene der Druckplatten ist überdies zumindest eines der ersten Haltemittel selbst quer zur Ebene der Druckplatten beweglich am ersten Wagen gelagert. Mithin läßt sich das erste Haltemittel nicht nur in Längsrichtung in Richtung auf die benachbarte Druckplatte verlängern beziehungsweise verkürzen, sondern insgesamt zusätzlich in diese Richtung verlagern. Dies erfolgt in einer oberen Stellung des Wagens mittels einer Zwangssteuerung derart, daß die vorzugsweise abgewinkelte Druckplattenhinterkante der verwendeten Druckplatte beim Einbringen in die Kassette unter eine Haltekante der Kassette gelangt. Sobald für ein Abführen einer verwendeten Druckplatte deren Hinterkante von der Hinterkantenklemmvorrichtung des Druckplattenzylinders freigegeben und durch Rückwärtsdrehung des Druckplattenzylinders die Druckplatten teilweise in das Innere des Magazins eingeschoben wurde, wird das Druckplattenhinterende von dem ersten Haltemittel erfaßt. Der wagen befindet sich dabei in einer unteren Stellung. Für das Einbringen der verwendeten Druckplatte in das Innere des Magazins wird anschließend der wagen in die erwähnte obere Stellung verfahren, wobei gleichzeitig der Druckplattenzylinder eine Rückwärtsdrehung durchführt und somit die Druckplatte von der Mantelfläche des Druckplattenzylinders "abwickelt". Bei dem Verfahren des Wagens in die obere Stellung tritt dann die Zwangssteuerung in Funktion, die das erwähnte erste Haltemittel und damit den Hinterkantenendbereich der Druckplatte in Richtung auf die die verwendete Druckplatte aufnehmende Kassette verlagert, so daß die Druckplatte mit der abgewinkelten Hinterkante unter die erwähnte Haltekante der Kassette gelangt.In addition to being able to be displaced in the direction transverse to the plane of the pressure plates with all holding means, at least one of the first holding means itself is also movably mounted on the first carriage transversely to the plane of the pressure plates. The first holding means can therefore not only be lengthened or shortened in the longitudinal direction in the direction of the adjacent pressure plate, but can also be shifted overall in this direction. This is done in an upper position of the carriage by means of a positive control such that the preferably angled printing plate trailing edge of the printing plate used passes under a holding edge of the cassette when it is inserted into the cassette. As soon as the trailing edge of a printing plate used has been released from the trailing edge clamping device of the printing plate cylinder and the printing plates have been partially pushed into the interior of the magazine by rotating the printing plate cylinder backwards, the rear end of the printing plate is gripped by the first holding means. The carriage is in a lower position. For the introduction of the printing plate used into the interior of the magazine, the carriage is then moved into the above-mentioned position, the printing plate cylinder simultaneously making a reverse rotation and thus "unwinding" the printing plate from the outer surface of the printing plate cylinder. When the carriage is moved into the upper position, the positive control then comes into operation, which shifts the mentioned first holding means and thus the trailing edge end region of the printing plate in the direction of the cassette receiving the printing plate used, so that the printing plate with the angled trailing edge under the mentioned holding edge the cassette.

Die Zwangssteuerung ist vorzugsweise von einer Auflaufschräge gebildet, auf die ein Abtastglied zum Bewegen, insbesondere Verschwenken, des beweglich gelagerten ersten Haltemittels aufläuft.The positive control is preferably formed by a run-up slope on which a scanning element for moving, in particular Swiveling, the movably mounted first holding means runs up.

Ist die Hinterkante der Druckplatte bis in die geschilderte Position verfahren worden, so wird das Druckplattenvorderende von mindestens einem, im unteren Bereich des Magazins angeordneten Niederhalter beaufschlagt und dadurch ebenfalls in die Kassette hineingedrückt. Der Niederhalter bleibt in dieser Position, während die Haltemittel die Druckplatte ein kleines Stückchen nach unten schieben, so daß auch die Druckplattenvorderkante unter eine Haltekante der Kassette gelangt. Damit ist die abzuführende Druckplatte vollständig und sicher in der Kassette aufgenommen.If the rear edge of the printing plate has been moved into the position described, at least one holding-down device arranged in the lower region of the magazine is acted upon by the printing plate front end and is thereby also pressed into the cassette. The hold-down device remains in this position, while the holding means push the printing plate down a little, so that the printing plate leading edge also comes under a holding edge of the cassette. The pressure plate to be removed is thus completely and securely accommodated in the cassette.

Nach einer anderen Weiterbildung der Erfindung ist vorgesehen, daß im unteren Ende des Magazins mindestens eine Führungswalze zum Einführen der verwendeten Druckplatte in die Kassette angeordnet ist. Diese Führungswalze erleichtert die Zuführung der alten, verwendeten Druckplatten in die Kassette des Magazins.According to another development of the invention, it is provided that at least one guide roller for inserting the printing plate used into the cassette is arranged in the lower end of the magazine. This guide roller facilitates the feeding of the old, used printing plates into the magazine cassette.

Die Zeichnung veranschaulicht die Erfindung anhand eines Ausführungsbeispiels und zwar zeigt:

Fig. 1
ein Druckwerk einer Druckmaschine in schematischer Darstellung mit einem sich in Ausgangsposition befindlichen Magazin,
Fig. 2
das Magazin der Figur 1 in einer Mittelposition,
Fig. 3
das Magazin in Plattenwechselposition bei der Zuführung einer neuen, zu gebrauchenden Druckplatte zum Druckplattenzylinder der Druckmaschine,
Fig. 4
eine Darstellung gemäß Figur 3, wobei die Druckplatte jedoch bereits auf den Druckplattenzylinder aufgespannt ist,
Fig. 5
die Rückführung des Magazins in die Ausgangsposition,
Fig. 6
das Anfahren der Mittelposition, um eine verwendete Druckplatte aufzunehmen,
Fig. 7
das Magazin in Plattenwechselposition bei Aufnahme der verwendeten Druckplatte,
Fig. 8
eine der Figur 7 entsprechende Darstellung, wobei sich die Druckplatte jedoch bereits vollständig in einer Kassette des Magazins befindet,
Fig. 9
das Magazin wiederum in Ausgangsposition,
Fig. 10
einen Längsschnitt durch das Magazin,
Fig. 11
einen Längsschnitt durch das Magazin gemäß Figur 10, jedoch in einer anderen Ebene,
Fig. 12
ein Querschnitt durch das Magazin,
Fig. 13
eine schematische Ansicht im Längsschnitt beim Zuführen einer verwendeten Druckplatte zum Magazin,
Fig. 14
eine der Figur 13 entsprechende Darstellung, jedoch mit weiter eingeführter Druckplatte,
Fig. 15
das Magazin im Längsschnitt mit vollständig eingeführter Druckplatte,
Fig. 16
eine der Figur 15 entsprechende Darstellung, jedoch im Zustand des Einbringens der Vorderkante der Druckplatte in eine Kassette des Magazins und
Fig. 17
einen Querschnitt durch das Magazin im Bereich einer Plattenabführeinrichtung.
The drawing illustrates the invention using an exemplary embodiment and shows:
Fig. 1
a printing unit of a printing press in a schematic representation with a magazine located in the starting position,
Fig. 2
the magazine of Figure 1 in a middle position,
Fig. 3
the magazine in the plate changing position when a new printing plate to be used is fed to the printing plate cylinder of the printing machine,
Fig. 4
a representation according to Figure 3, but the printing plate is already clamped on the printing plate cylinder,
Fig. 5
the return of the magazine to the starting position,
Fig. 6
moving to the middle position to pick up a used printing plate,
Fig. 7
the magazine in plate change position when the printing plate used is picked up,
Fig. 8
7 shows a representation corresponding to FIG. 7, but the printing plate is already completely in a cassette of the magazine,
Fig. 9
the magazine again in the starting position,
Fig. 10
a longitudinal section through the magazine,
Fig. 11
10 shows a longitudinal section through the magazine according to FIG. 10, but in a different plane,
Fig. 12
a cross section through the magazine,
Fig. 13
1 shows a schematic view in longitudinal section when feeding a printing plate used to the magazine,
Fig. 14
13 shows a representation corresponding to FIG. 13, but with the printing plate introduced further,
Fig. 15
the magazine in longitudinal section with the pressure plate fully inserted,
Fig. 16
a representation corresponding to Figure 15, but in the state of inserting the front edge of the printing plate into a cassette of the magazine and
Fig. 17
a cross section through the magazine in the area of a plate removal device.

Für einen automatischen oder halbautomatischen Druckplattenwechsel, das heißt, zum Abführen einer alten, verwendeten Druckplatte und nachfolgendem Zuführen einer neuen, zu verwendenden Druckplatte zum Druckplattenzylinder 1 eines Druckwerks 2 einer Druckmaschine 3 weist das Druckwerk 2 eine als Magazin 4 ausgebildete Vorrichtung auf. Mit dem Magazin 4, das bei einer Druckmaschine 3 mit mehreren Druckwerken 2 an jedem Druckwerk 2 der Druckmaschine 3 vorgesehen ist, kann eine neu zu verwendete Druckplatte auch nur lediglich zugeführt oder eine bereits verwendete Druckplatte lediglich abgeführt werden (Figuren 1 bis 9).For an automatic or semi-automatic printing plate change, that is, for removing an old, used printing plate and subsequently feeding a new, used printing plate to the printing plate cylinder 1 of a printing unit 2 of a printing machine 3, the printing unit 2 has a device designed as a magazine 4. With the magazine 4, which is provided in a printing press 3 with a plurality of printing units 2 on each printing unit 2 of the printing press 3, a newly used printing plate can also only be fed in or an already used printing plate can only be removed (FIGS. 1 to 9).

In Figur 1 befindet sich das Magazin 4 in seiner Ausgangsposition (senkrechte Position). In diesem Ruhezustand ist das Magazin 4 gegen Kippen gesichert (Verriegelung). Der normale Maschinenlauf (Druckbetrieb) ist nur in dieser unteren, vertikalen Position des Magazins 4 möglich.In Figure 1, the magazine 4 is in its starting position (vertical position). In this idle state, the magazine 4 is secured against tipping (locking). Normal machine operation (printing operation) is only possible in this lower, vertical position of magazine 4.

Das Magazin 4 weist zwei Aufnahmeschächte 5 und 6 auf, in die jeweils eine Kassette 7 beziehungsweise 8 von oben her einschiebbar ist (Figur 1). Die Kassette 7 dient dazu, alte, in der Druckmaschine 3 bereits verwendete Druckplatten aufzunehmen. Die Kassette 7 ist derart ausgebildet, daß sie mehrere, zum Beispiel fünf, verwendete Druckplatten aufnehmen kann. Diese Druckplatten bilden im Innern der Kassette 7 einen Druckplattenstapel, das heißt, die einzelnen Druckplatten liegen flächig aufeinander. Die Kassette 8 dient der Aufnahme, neuer, noch zu verwendender Druckplatten. Auch sie kann mehrere, insbesondere fünf Druckplatten gleichzeitig aufnehmen, wobei auch diese Druckplatten einander flächig zugeordnet sind. Zum Entnehmen der verwendeten Druckplatten ist es somit lediglich erforderlich, die Kassette 7 aus dem Aufnahmeschacht 5 herauszuziehen. Außerhalb der Druckmaschine 3 kann die Kassette 8 mit neuen, noch zu verwendeten Druckplatten bestückt werden. Ist dies erfolgt, so wird die Kassette 8 in den Aufnahmeschacht 6 des Magazins 4 eingeschoben, so daß sie für ein Zuführen zum Druckplattenzylinder 1 des entsprechenden Druckwerks 2 zur Verfügung stehen.The magazine 4 has two receiving shafts 5 and 6, into each of which a cassette 7 or 8 can be inserted from above (FIG. 1). The cassette 7 is used to hold old printing plates already used in the printing press 3. The cassette 7 is designed such that it can accommodate several, for example five, printing plates used. These printing plates form a stack of printing plates in the interior of the cassette 7, that is to say the individual printing plates lie flat on one another. The cassette 8 is used to hold new printing plates that are still to be used. It can also have several, in particular five, printing plates at the same time record, these printing plates are also assigned to each other over a large area. To remove the printing plates used, it is therefore only necessary to pull the cassette 7 out of the receiving shaft 5. Outside the printing machine 3, the cassette 8 can be equipped with new printing plates that are still to be used. If this has taken place, the cassette 8 is inserted into the receiving shaft 6 of the magazine 4, so that it is available for feeding to the printing plate cylinder 1 of the corresponding printing unit 2.

Nachfolgend werden die einzelnen Positionen des Magazins 4 erläutert, die für ein Ab- und/oder Zuführen von Druckplatten eingenommen werden. Soll dem Druckplattenzylinder 1 eine zu verwendete Druckplatte 9 zugeführt werden, so fährt das Magazin 4 - gemäß Figur 2 - senkrecht nach oben in eine Mittelposition und verschwenkt dann - gemäß Figur 3 - in eine Schrägstellung (zum Beispiel etwa 45°). Mittels einer noch näher zu erläuternden Plattenzuführeinrichtung des Magazins 4 wird dann die zu verwendete Druckplatte 9 dem Druckplattenzylinder 1 zugeführt und auf diesen aufgespannt (Figur 4). Anschließend verschwenkt das Magazin 1 dann wieder in seine vertikale Stellung und senkt dann wieder in die untere Position (Ausgansposition) gemäß Figur 5 ab.The individual positions of the magazine 4 which are assumed for removing and / or feeding printing plates are explained below. If a printing plate 9 to be used is to be fed to the printing plate cylinder 1, the magazine 4 moves vertically upwards into a central position, as shown in FIG. 2, and then pivots into an inclined position, as shown in FIG. 3, for example about 45 °. The printing plate 9 to be used is then fed to the printing plate cylinder 1 and clamped thereon by means of a plate feed device of the magazine 4 to be explained in more detail (FIG. 4). The magazine 1 then pivots back into its vertical position and then lowers again into the lower position (starting position) according to FIG. 5.

Nunmehr kann der Druckprozeß durchgeführt werden. Ist der Druckauftrag erledigt, so ist die Druckplatte 9 vom Druckplattenzylinder 1 zu entfernen. Hierzu hebt eine Hubvorrichtung das Magazin 4 wiederum in die Mittelposition (Figur 6). Anschließend erfolgt - gemäß Figur 7 - ein Verschwenken in die Schrägstellung und es wird - durch Ausspannen der Plattenhinterkante und Rückwärtsdrehen des Druckplattenzylinders 1 - die verwendete Druckplatte 10 teilweise in das Magazin 4 eingeschoben (Figur 7). Gemäß Figur 8 wird die verwendete Druckplatte 10 dann vollständig durch eine noch näher zu beschreibende Plattenabführeinrichtung des Magazins 4 vollständig in die Kassette 7 eingezogen. Nunmehr verschwenkt das Magazin 4 wieder in seine senkrechte Position und senkt dann - gemäß Figur 9 - in die Ausgangsposition ab.The printing process can now be carried out. When the print job has been completed, the printing plate 9 must be removed from the printing plate cylinder 1. For this purpose, a lifting device in turn lifts the magazine 4 into the middle position (FIG. 6). This is followed - according to FIG. 7 - by pivoting into the inclined position and - by unclamping the rear edge of the plate and turning the printing plate cylinder 1 backwards - the printing plate 10 used is partially pushed into the magazine 4 (FIG. 7). According to FIG. 8, the printing plate 10 used is then completely replaced by a plate discharge device of the plate to be described in more detail below Magazine 4 completely pulled into the cassette 7. Now the magazine 4 pivots back into its vertical position and then lowers - according to FIG. 9 - into the starting position.

Selbstverständlich ist es auch möglich, daß Ab- und Zuführen von Druckplatten zu kombinieren, um einen Druckplattenwechsel herbeizuführen. Dies bedeutet, daß in der Schrägstellung zunächst eine verwendete Druckplatte 10 vom Magazin 4 aufgenommen und eine neue, zu verwendete Druckplatte dann dem Druckplattenzylinder 1 zugeführt wird. Ist dies erfolgt, so schwenkt das Magazin 4 in die Vertikale zurück und senkt in die Ausgangsposition ab.Of course, it is also possible to combine the removal and supply of printing plates in order to change the printing plates. This means that in the inclined position, a printing plate 10 used is first picked up by the magazine 4 and a new printing plate to be used is then fed to the printing plate cylinder 1. If this has taken place, the magazine 4 swings back into the vertical and lowers into the starting position.

Die Konstruktion des Magazins 4 soll nachfolgend anhand der Figuren 10 bis 12 näher erläutert werden.The construction of the magazine 4 will be explained in more detail below with reference to FIGS. 10 to 12.

Das Magazin 4 ist aus zeichentechnischen Gründen in den Figuren 10 und 11 in horizontaler Position relativ zu den Seitenrändern des Zeichnungsblattes wiedergegeben. Es sei jedoch darauf hingewiesen, daß die in den Figuren 10 und 11 gezeigten Stellungen den Schrägstellungen gemäß der Figuren 3, 4, 7 sowie 8 entspricht.For technical reasons, the magazine 4 is shown in FIGS. 10 and 11 in a horizontal position relative to the side edges of the drawing sheet. However, it should be pointed out that the positions shown in FIGS. 10 and 11 correspond to the inclined positions according to FIGS. 3, 4, 7 and 8.

Das Magazin 4 ist schichtförmig aufgebaut. Es weist eine äußere Schicht 11 auf, von der die Kassette 7 aufgenommen wird. In einer folgenden Schicht 12 ist eine der vorstehenden Kassette 7 zugeordnete Plattenabführeinrichtung 13 untergebracht. In einer folgenden Schicht 14 ist die Kassette 8 angeordnet. Eine weiter folgende Schicht 15 nimmt eine Plattenzuführeinrichtung 16 auf, die mit den Druckplatten 9 der Kassette 8 zusammenwirkt.The magazine 4 is constructed in layers. It has an outer layer 11 from which the cassette 7 is received. A plate removal device 13 assigned to the above cassette 7 is accommodated in a subsequent layer 12. The cassette 8 is arranged in a subsequent layer 14. A further layer 15 receives a plate feed device 16 which interacts with the pressure plates 9 of the cassette 8.

Die Plattenabführeinrichtung 13 weist erste Haltemittel 17 auf, die als aktivierbare erste Saugorgane 18 ausgebildet sind. Die Saugnäpfe 19 der ersten Saugorgane 18 lassen sich in Richtung auf die Druckplatten 10 ausfahren (in den Figuren 10 und 11 sind - der Übersichtlichkeit halber - nur jeweils eine Druckplatte 9 beziehungsweise 10 dargestellt). Die ersten Saugorgane 18 sind an einem ersten Wagen 20 angeordnet, der entlang einer ersten Führung 21 verfahrbar ist. Gemäß Figur 17 weist die Führung 21 zwei voneinander beabstandete, parallel zueinanderverlaufende Führungsteile 22 auf, die als Führungsstangen 23 ausgebildet sind. Die Führungsstangen 23 werden von Führungsteilen 24 des ersten Wagens 20 mit geringfügigem Spiel umgriffen.The plate removal device 13 has first holding means 17, which are designed as activatable first suction elements 18. The suction cups 19 of the first suction members 18 can be extended in the direction of the pressure plates 10 (in FIGS. 10 and 11 - for the sake of clarity - only one pressure plate 9 or 10 is shown). The first suction elements 18 are arranged on a first carriage 20 which can be moved along a first guide 21. According to FIG. 17, the guide 21 has two guide parts 22 which are spaced apart from one another and run parallel to one another and which are designed as guide rods 23. The guide rods 23 are surrounded by guide parts 24 of the first carriage 20 with a slight play.

Der erste Wagen 20 ist mittels einer Antriebseinrichtung 25 entlang der ersten Führung 21 verfahrbar. Die Antriebseinrichtung 25 weist ein feststehendes, nicht ferromagnetisches Rohr 26 (zum Beispiel ein Aluminiumrohr) auf, das sich von der Ober- bis zur Unterseite des Magazins 4 erstreckt. Im Innern des Rohres 26 befindet sich ein magnetischer Kolben 27, der mittels eines Druckmediums innerhalb des Rohrs 26 hin- und herbewegbar sowie in gewünschten Stellungen positionierbar ist. Am ersten Wagen 20 befindet sich ein ferromagnetisches Bauteil 28, das als Stahlring 29 ausgebildet ist. Eine Bewegung des magnetischen Kolbens 27 hat daher die wirkung, daß über das magnetische Feld der Stahlring 29 und damit der Wagen 20 mitgenommen wird. Aufgrund dieser Konstruktion liegt eine flexible Kopplung vor und überdies ist der Wagen aus einer ganz oben im Magazin 4 befindlichen Stellung (in Figur 10 mit durchgezogenen Linien dargestellt) in eine ganz unten liegende Stellung (in Figur 10 mit gestrichelten Linien dargestellt) verfahrbar.The first carriage 20 can be moved along the first guide 21 by means of a drive device 25. The drive device 25 has a fixed, non-ferromagnetic tube 26 (for example an aluminum tube) which extends from the top to the bottom of the magazine 4. Inside the tube 26 there is a magnetic piston 27 which can be moved back and forth within the tube 26 by means of a pressure medium and can be positioned in the desired positions. A ferromagnetic component 28, which is designed as a steel ring 29, is located on the first carriage 20. A movement of the magnetic piston 27 therefore has the effect that the steel ring 29 and thus the carriage 20 is taken along via the magnetic field. Because of this construction, there is a flexible coupling and, moreover, the carriage can be moved from a position at the very top of the magazine 4 (shown with solid lines in FIG. 10) to a position at the very bottom (shown with dashed lines in FIG. 10).

Gemäß Figur 17 sind beidseitig der Antriebseinrichtung 25 jeweils ein Saugorgan 18 angeordnet. Jedes Saugorgan 18 ist an einem Hebel 30 befestigt, der mittels eines Scharniers 31 in Richtung auf die Druckplatte 10 verschwenkbar ist. Die Stellung der Hebel 30 ist von einer Zwangssteuerung 32 bestimmt (siehe auch Figur 13), die von einer mit jedem Hebel 30 in Verbindung stehenden Rolle 33 gebildet ist, welche in einer ortsfesten Führungsschiene 34 läuft. Jede Führungsschiene 34 weist im oberen Bereich des Magazins 4 eine Auflaufschräge 35 (Figur 13) auf, so daß bei sich in eine obere Stellung bewegenden wagen 20 die Rollen 33 auf die Auflaufschrägen 35 auflaufen und dadurch die Hebel 30 und somit die Saugorgane 18 in Richtung auf die Druckplatte 10 verschwenken. Federn 115 dienen der Rückführung des Hebels 30 sowie der Auflage der Rollen 33 auf den Auflaufschrägen 35.According to FIG. 17, a suction element 18 is arranged on both sides of the drive device 25. Each suction element 18 is fastened to a lever 30 which can be pivoted in the direction of the pressure plate 10 by means of a hinge 31. The position of the levers 30 is determined by a positive control 32 (see also FIG. 13) which is formed by a roller 33 which is connected to each lever 30 and which in FIG a stationary guide rail 34 runs. Each guide rail 34 has in the upper region of the magazine 4 a run-up slope 35 (FIG. 13), so that when the carriage 20 moves into an upper position, the rollers 33 run onto the run-up slopes 35 and thereby the lever 30 and thus the suction members 18 in the direction pivot onto the pressure plate 10. Springs 115 serve to return the lever 30 and to rest the rollers 33 on the ramp 35.

Im unteren Bereich des Magazins 4 sind auf sich gegenüberliegenden Seiten betätigbare Niederhalter 36 angeordnet, die einer Beaufschlagung der Druckplatte 10 in diesem Bereich dienen. Ferner sind im unteren Bereich des Magazins 4 Führungswalzen 37, 38 und 39 angeordnet.In the lower area of the magazine 4, actuatable hold-down devices 36 are arranged on opposite sides, which serve to act upon the pressure plate 10 in this area. Furthermore, 4 guide rollers 37, 38 and 39 are arranged in the lower region of the magazine.

Nachfolgend wird die Funktion des Abführens einer verwendeten Druckplatte 10 vom Druckplattenzylinder 1 in die Kassette 7 des Magazins 4 beschrieben. Hierzu wird das Magazin 4 zunächst - entsprechend der Figuren 6 und 7 - in die notwendige Schrägstellung verbracht. Anschließend öffnet sich eine Hinterkantenklemmvorrichtung 40 des Druckplattenzylinders 1 und gibt die dort eingespannte, abgewinkelte Druckplattenhinterkante 41 frei. Aufgrund der Eigenelastizität schlägt dadurch das hintere Ende der Druckplatte 10 gegen die Führungswalze 37 (Figur 13). Anschließend erfolgt durch Rückwärtsdrehen (Pfeil 42) des Druckplattenzylinders 1 ein Einschieben der Druckplatte 10 in die Kassette 7 des Magazins 4. Die Führungswalzen 37, 38 und 39 helfen beim Einführen des Hinterkantenendes der Druckplatte 10. Führungsschienen 116 können angeordnet sein, die in Aussparungen der Druckplattenhinterkante 41 gleiten. Dieses Einführen ist in der Figur 13 mit gepunkteter Linie und in Figur 14 mit ausgezeichneter Linie dargestellt. Ist die Druckplatte 10 etwa zu einem Drittel in das Magazin 4 hineingefahren worden, so werden die Saugorgane 18 des sich in unterster Position innerhalb des Magazins 4 befindlichen Wagens 20 aktiviert, das heißt, die Saugnäpfe 19 bewegen sich in Richtung auf die zu haltende Druckplatte 10 und saugen sich an der Druckplatte 10 fest. Nunmehr verfährt der wagen 20 unter gleichzeitigem weiteren Rückwärtsdrehen des Druckplattenzylinders 1 in seine obere Stellung, wodurch die Druckplatte 10 vollständig in das Magazin 4 hineingezogen wird. Hierbei wird auch die Vorderkante 44 der Druckplatte 10 entklemmt. Gelangt der wagen 20 in den oberen Endbereich des Magazins 4, so laufen die Rollen 33 auf die Auflaufschrägen 35 auf und verschwenken die Hebel 30, so daß - gemäß Figur 15 - die abgewinkelte Druckplattenhinterkante 41 unter eine Haltekante 43 der Kassette 7 gelangt. Anschließend drücken die Niederhalter 36 die Druckplatte 10 im Bereich ihrer Vorderkante 44 nieder (Figur 16), so daß die Vorderkante 44 tiefer als eine Haltekante 45 der Kassette 7 zu liegen kommt. Durch Schwerkraft und/oder durch Verlagerung des Wagens 20 wird dann die Vorderkante 44 durch Herunterziehen der Druckplatte 10 unter die Haltekante 45 verbracht. Damit ist die Druckplatte 10 sicher in der Kassette 7 angeordnet. Insbesondere dann, wenn mehrere bereits verwendete Druckplatten 10 in der Kassette 7 untergebracht werden sollen, ist es bei den zuletzt eingebrachten Druckplatten 10 erforderlich, diese mittels des Wagens 20 herunterzuziehen und durch die Niederhalter 36 zu halten, damit sie unter die Haltekante 45 gelangen, da aufgrund relativ großer Spannungen am Druckplattenanfang die Schwerkraft allein nicht mehr ausreicht, die Druckplatten 10 in diese Lage zu versetzen.The function of removing a printing plate 10 used from the printing plate cylinder 1 into the cassette 7 of the magazine 4 is described below. For this purpose, the magazine 4 is first brought into the required inclined position, corresponding to FIGS. 6 and 7. A rear edge clamping device 40 of the printing plate cylinder 1 then opens and releases the angled printing plate rear edge 41 clamped there. As a result of the inherent elasticity, the rear end of the pressure plate 10 strikes against the guide roller 37 (FIG. 13). Subsequently, by turning the printing plate cylinder 1 backwards (arrow 42), the printing plate 10 is pushed into the cassette 7 of the magazine 4. The guide rollers 37, 38 and 39 help in inserting the trailing edge end of the printing plate 10. Guide rails 116 can be arranged which are in cutouts in the Slide the pressure plate trailing edge 41. This insertion is shown in FIG. 13 with a dotted line and in FIG. 14 with an excellent line. If the pressure plate 10 has been moved approximately one third into the magazine 4, the suction elements 18 of the carriage 20 located in the lowest position within the magazine 4 are activated, which That is, the suction cups 19 move in the direction of the pressure plate 10 to be held and suck on the pressure plate 10. Now the carriage 20 moves while simultaneously turning the printing plate cylinder 1 backwards into its upper position, as a result of which the printing plate 10 is completely drawn into the magazine 4. Here, the front edge 44 of the pressure plate 10 is also unclamped. When the carriage 20 reaches the upper end region of the magazine 4, the rollers 33 run onto the run-up slopes 35 and pivot the levers 30, so that - according to FIG. 15 - the angled pressure plate rear edge 41 comes under a retaining edge 43 of the cassette 7. The hold-down devices 36 then press the pressure plate 10 down in the region of its front edge 44 (FIG. 16), so that the front edge 44 comes to lie lower than a holding edge 45 of the cassette 7. By gravity and / or by moving the carriage 20, the front edge 44 is then brought under the holding edge 45 by pulling down the pressure plate 10. The printing plate 10 is thus securely arranged in the cassette 7. In particular, if several printing plates 10 that have already been used are to be accommodated in the cassette 7, it is necessary in the case of the printing plates 10 that were introduced last to pull them down by means of the carriage 20 and to hold them down by the hold-down devices 36 so that they come under the holding edge 45, due to relatively large tensions at the beginning of the printing plate, gravity alone is no longer sufficient to move the printing plates 10 into this position.

Die Entnahme der verwendeten Druckplatten 10 aus dem Magazin 4 erfolgt auf einfache weise dadurch, daß die Kassette 7 aus dem zugeordneten Aufnahmeschacht 5 herausgezogen wird.The printing plates 10 used are removed from the magazine 4 in a simple manner by pulling the cassette 7 out of the associated receiving shaft 5.

Bereits hier sei schon auf eine Besonderheit der Kassette 8 eingegangen, die die neuen, noch zu verwendenden Druckplatten 9 enthält, obgleich auf die Entnahme der Druckplatten 9 aus der Kassette 8 erst später eingegangen wird. Befinden sich mehrere Druckplatten 9 aufeinander gestapelt innerhalb der Kassette 8, so ist es bei einer Entnahme der obersten Druckplatte 9 möglich, daß sich zur folgenden Druckplatte 9 ein Vakuum bildet. Dies kann dazu führen, daß versehentlich zwei Druckplatten gleichzeitig entnommen werden, weil diese "aneinanderkleben". Um dies zu verhindern, wird eine spezielle Entnahmetechnik durchgeführt, auf die nachstehend noch näher eingegangen wird, und überdies ist es möglich Abstandshalter zwischen den einzelnen Druckplatten 9 anzubringen, so daß die Ausbildung eines Vakuums verhindert wird. Die Abstandshalter sind vorzugsweise als Kunststoffzungen ausgebildet. Sie lassen sich bevorzugt in einem Rastsitz der Randbereiche einklipsen. Beim Bestücken einer Kassette 8 werden also zunächst Abstandshalter eingeklipst, bevor auf eine bereits in der Kassette 8 befindliche Druckplatte 9 eine weitere Druckplatte 9 gelegt wird. Die Abstandshalter sind so flexibel, daß sie bei der Entnahme der darunterliegenden Druckplatte ausweichen.A special feature of the cassette 8, which contains the new printing plates 9 that are still to be used, is already discussed here, although the removal of the printing plates 9 from the cassette 8 will be discussed later. Are located several printing plates 9 stacked one on top of the other within the cassette 8, it is possible when the uppermost printing plate 9 is removed that a vacuum is formed for the following printing plate 9. This can lead to two printing plates being accidentally removed at the same time because they "stick together". To prevent this, a special removal technique is carried out, which will be discussed in more detail below, and it is also possible to place spacers between the individual pressure plates 9, so that the formation of a vacuum is prevented. The spacers are preferably designed as plastic tongues. They can be clipped on preferably in a snap-fit seat in the edge areas. When loading a cassette 8, spacers are first clipped in before another printing plate 9 is placed on a printing plate 9 already in the cassette 8. The spacers are so flexible that they dodge when removing the underlying pressure plate.

Soll nach dem Abführen einer Druckplatte 10 sogleich eine neue, noch zu verwendende Druckplatte 9 auf den Druckplattenzylinder 1 aufgespannt werden, so verbleibt das Magazin 4 in seiner Schrägstellung und es wird der Kassette 8 eine neue Druckplatte 9 entnommen. Dies erfolgt mittels der Plattenzuführeinrichtung 16. Um mittels der Plattenzuführeinrichtung 16 dem Druckplattenzylinder 1 eine Druckplatte 9 aus der Kassette 8 zuzuleiten, befindet sich das Magazin 4 - wie bereits erwähnt - in seiner Schrägstellung, in der sich Abstützrollen 52 an dem Druckplattenzylinder 1 zugeordneten Schmitzringen 53 abstützen. Die Plattenzuführeinrichtung 16 weist an einem zweiten Wagen 54 zweite Haltemittel 55 auf, die ebenfalls als aktivierbare Saugorgane 56 (zweite Saugorgane) ausgebildet sind. Die Saugorgane sind - gemäß der Figuren 10 und 12 - jeweils zu viert in einer Reihe beabstandet zueinander angeordnet, wobei drei Reihen am zweiten Wagen 54 ausgebildet sind. Es kann auch vorgesehen sein, die untere, dem Druckplattenzylinder 1 am nächsten kommende Reihe von Saugorgangen 56 mit vier Saugorganen 56 auszustatten und die übrigen Reihen mit jeweils drei. Die in der unteren, dem Druckplattenzylinder 1 zugeordneten Reihe angeordneten Saugorgane 56 sind an Hebeln 57 befestigt, die um Achsen 58 verschwenkbar sind. Zur Betätigung der Hebel 57 sind Druckzylinder 59 vorgesehen; ferner werden die Hebel 57 von einer Feder 60 beaufschlagt. Im oberen Bereich des Magazins 4 ist ein vorzugsweise optisch arbeitender Sensor 61 angeordnet, der die Stellung der zugehörigen Druckplatte 9, insbesondere deren Stellung der Hinterkante 41 überwacht. Zwischen der oberen und der mittleren Saugorganreihe ist eine aktivierbare Niederdrückvorrichtung 62 zur Beaufschlagung der Druckplatten 9 angeordnet. Ferner weist das Magazin 4 an seinem unteren Ende ein verlagerbares Andrückelement 63 auf, das als radial zum Druckplattenzylinder 1 verlagerbare Andruckrolle 64 ausgebildet ist.If, after removal of a printing plate 10, a new printing plate 9 still to be used is to be clamped onto the printing plate cylinder 1, the magazine 4 remains in its inclined position and a new printing plate 9 is removed from the cassette 8. This takes place by means of the plate feed device 16. In order to feed a pressure plate 9 from the cassette 8 to the printing plate cylinder 1 by means of the plate feed device 16, the magazine 4 is - as already mentioned - in its inclined position in which support rollers 52 on the bearer rings 53 assigned to the printing plate cylinder 1 support. The plate feed device 16 has second holding means 55 on a second carriage 54, which are also designed as activatable suction members 56 (second suction members). The suction members are - according to FIGS. 10 and 12 - each four of them in a row spaced apart, three rows being formed on the second carriage 54. It can also be provided that the lower one, the printing plate cylinder 1 to equip the next upcoming row of suction organs 56 with four suction elements 56 and the remaining rows with three each. The suction members 56 arranged in the lower row assigned to the printing plate cylinder 1 are fastened to levers 57 which can be pivoted about axes 58. Pressure cylinders 59 are provided for actuating the levers 57; furthermore, the levers 57 are acted upon by a spring 60. A preferably optically operating sensor 61 is arranged in the upper region of the magazine 4 and monitors the position of the associated pressure plate 9, in particular its position of the rear edge 41. An activatable depressing device 62 for loading the pressure plates 9 is arranged between the upper and the middle row of suction elements. Furthermore, the magazine 4 has at its lower end a displaceable pressing element 63 which is designed as a pressure roller 64 which can be displaced radially to the printing plate cylinder 1.

Der zweite Wagen 54 ist mittels einer Kolben/Zylinder-Einheit 65 entlang einer zweiten Führung 66 (Figur 12) verfahrbar. Die zweite Führung wird von feststehenden Profilschienen 67 gebildet, in denen Führungsrollen 68 des Wagens 54 laufen.The second carriage 54 can be moved along a second guide 66 (FIG. 12) by means of a piston / cylinder unit 65. The second guide is formed by fixed profile rails 67, in which guide rollers 68 of the carriage 54 run.

Für das Zuführen einer Druckplatte 9 können zunächst die untersten, dem Druckplattenzylinder 1 zugeordneten Saugorgane 56 in Funktion treten, wobei sich die Hebel 57 in ihrer nicht ausgelenkten Stellung befinden. Danach werden die Saugorgane 56 der mittleren Saugerreihe und anschließend die Saugorgane 56 der oberen Saugerreihe aktiv. Eine andere Reihenfolge, beispielsweise zuerst die mittleren Sauger und dann die am Rand liegenden, ist denkbar. Durch das nicht gleichzeitig erfolgende, sondern nacheinander durchgeführte Aktivieren der Saugorganreihen, wird die zu oberst liegende, neue Druckplatte 9 so angehoben, daß sich zur darunter befindlichen weiteren Druckplatte 9 kein oder nur ein sehr geringes Vakuum bildet. Damit ist sichergestellt, daß nur eine Druckplatte 9 angehoben wird. Im übrigen können die zuvor erwähnten Abstandshalter (Kunststoffzungen) zwischen den einzelnen Druckplatten 9 angeordnet sein, was zusätzlich der Bildung eines Vakuums entgegenwirkt. Ist die Druckplatte 9 angehoben, so wird der Wagen 54 mittels der Kolben/Zylinder-Einheit 65 in Richtung des Druckplattenzylinders 1 geschoben. Dabei tritt die Vorderkante 44 der Druckplatte 9 in die Vorderkantenklemmvorrichtung 69 des Druckplattenzylinders 1, welcher zuvor entsprechend positioniert wurde. Beim oben geschilderten Vorfahren des Wagens 54 gleitet die abgewinkelte Druckplattenhinterkante 41 unter dem Sensor 61 hindurch, der die ordnungsgemäße Beförderung der Druckplatte 9 registriert. Während des Transports des Wagens 54 wird ein Bypaß in der Luftversorgung der Sauger der Saugorgane 56 aktiviert, da eine starke Saugluft nur zum Ansaugen der Druckplatte 9 notwendig ist. Nachdem der Wagen 54 nahezu seine dem Druckplattenzylinder 1 zugewandte äußerste Position erreicht hat, werden die Sauger der untersten und mittleren Reihe der Saugorgane 56 drucklos oder nur mit schwachem Unterdruck beaufschlagt; die Druckplatte 9 wird also nur von der obersten Saugerreihe gehalten. Dies hat den Zweck, daß sich die Druckplatte 9 besser ausrichten kann. Es erfolgt dann das Schließen der Vorderkantenklemmvorrichtung 69, so daß die Vorderkante 44 der Druckplatte 9 fest eingespannt wird. Anschließend dreht sich der Druckplattenzylinder 1 in Vorwärtsrichtung und zieht dabei die Druckplatte 9 auf seine Mantelfläche auf. Die Saugorgane sind durch den Bypass nur mit schwachem Unterdruck beaufschlagt, so daß sie die Druckplatte noch halten, sich diese jedoch auf den Saugorganen durch die Drehung des Plattenzylinders verschieben läßt. Vor dem Passieren der beiden oberen Saugerreihen durch die Druckplattenhinterkante werden diese jeweils drucklos und Bügel 70 sorgen für das kollisionsfreie Vorbeigleiten der abgewinkelten Hinterkante an den Saugorganen. Durch ihre Nähe zum Druckplattenzylinder 1 ist die Druckplatte 9 im Bereich der unteren Reihe der Saugorgane 56 relativ starr, so daß zum Passieren der abgewinkelten Druckplattenhinterkante 41 ein Hebel 57, der als Platte mit Scharnier ausgebildet ist und auf dem die gesamte Saugerreihe angeordnet ist, oder mehrere Hebel 57 in ihre in der Figur 10 wiedergegebene Stellung mittels eines oder mehrerer Zylinder 59 verschwenkt werden, so daß die Druckplattenhinterkante 41 einwandfrei die Saugerreihe passieren kann. Anschließend wird die Andruckrolle 64 radial in Richtung auf den Druckplattenzylinder 1 bewegt, wodurch die abgewinkelte Druckplattenhinterkante 41 in die Hinterkantenklemmvorrichtung 40 des Druckplattenzylinders 1 hineingedrückt wird. Die Hinterkantenklemmvorrichtung 40 schließt sich und spannt anschließend die Druckplatte durch entsprechende Verlagerung in Umfangsrichtung des Druckplattenzylinders 1. Danach bewegt sich der wagen 54 in seine Ursprungsstellung zurück, um zum gegebenen Zeitpunkt die nächste Druckplatte 9 zu erfassen.For feeding a printing plate 9, the lowest suction members 56 assigned to the printing plate cylinder 1 can first come into operation, the levers 57 being in their undeflected position. Then the suction members 56 of the middle row of suckers and then the suction members 56 of the top row of suckers become active. Another order is conceivable, for example first the middle suction cups and then the ones on the edge. By activating the suction element rows, which does not take place simultaneously, but is carried out one after the other, the new printing plate 9 lying on top is raised in such a way that there is no or only a very small amount to the additional printing plate 9 located below low vacuum forms. This ensures that only one pressure plate 9 is raised. Otherwise, the aforementioned spacers (plastic tongues) can be arranged between the individual pressure plates 9, which additionally counteracts the formation of a vacuum. If the pressure plate 9 is raised, the carriage 54 is pushed in the direction of the pressure plate cylinder 1 by means of the piston / cylinder unit 65. The front edge 44 of the pressure plate 9 enters the front edge clamping device 69 of the pressure plate cylinder 1, which was previously positioned accordingly. In the ancestor of the carriage 54 described above, the angled pressure plate rear edge 41 slides under the sensor 61, which registers the correct transport of the pressure plate 9. During the transport of the carriage 54, a bypass is activated in the air supply to the suction devices of the suction members 56, since a strong suction air is only necessary for the suction of the pressure plate 9. After the carriage 54 has almost reached its outermost position facing the pressure plate cylinder 1, the suction devices of the bottom and middle rows of the suction members 56 are pressureless or only subjected to a weak vacuum; the pressure plate 9 is therefore only held by the top row of suction cups. The purpose of this is that the pressure plate 9 can align better. Then the front edge clamping device 69 is closed, so that the front edge 44 of the pressure plate 9 is firmly clamped. Then the printing plate cylinder 1 rotates in the forward direction and pulls the printing plate 9 onto its outer surface. Due to the bypass, the suction elements are only subjected to a slight negative pressure, so that they still hold the pressure plate, but this can be moved on the suction elements by the rotation of the plate cylinder. Before the two upper rows of suction pads pass through the pressure plate trailing edge, these are each depressurized and brackets 70 ensure that the angled trailing edge glides past the suction elements without collision. Due to their proximity to the printing plate cylinder 1 the pressure plate 9 is relatively rigid in the area of the lower row of suction elements 56, so that a lever 57, which is designed as a plate with a hinge and on which the entire row of suction devices is arranged, or a plurality of levers 57 in its in order to pass through the angled pressure plate rear edge 41 the position shown in Figure 10 can be pivoted by means of one or more cylinders 59 so that the pressure plate rear edge 41 can pass the row of suction cups properly. The pressure roller 64 is then moved radially in the direction of the printing plate cylinder 1, as a result of which the angled printing plate rear edge 41 is pressed into the rear edge clamping device 40 of the printing plate cylinder 1. The trailing edge clamping device 40 closes and then clamps the printing plate by appropriate displacement in the circumferential direction of the printing plate cylinder 1. Then the carriage 54 moves back to its original position in order to grasp the next printing plate 9 at the given time.

Die Vorrichtung bewegt sich in ihre Ausgangsstellung zurück, indem die Zylinder 59 drucklos werden, so daß die Federn 60 dafür sorgen können, daß der oder die Hebel 57 in ihre Ursprungsstellung zurück gehen. Anschließend tritt dann die Niederdrückvorrichtung 62 in Aktion, die dafür sorgt, daß die verbleibenden Druckplatten 9 sauber in der Kassette 8 verbleiben und nicht herauskippen können, insbesondere wenn das Magazin 4 in seine vertikale Stellung zurückgeschwenkt wird.The device moves back to its original position by depressurizing the cylinders 59 so that the springs 60 can cause the lever (s) 57 to return to their original position. Then the depressing device 62 then comes into action, which ensures that the remaining printing plates 9 remain clean in the cassette 8 and cannot tip out, in particular when the magazine 4 is pivoted back into its vertical position.

Die Figur 10 zeigt, daß der oberen und der mittleren Reihe der Saugorgane 56 elastische Bügel 70 zugeordnet sind. Die Elastizität der Bügel 70 erlaubt das Ansaugen der zu verwendenden Druckplatte 9, das heißt, die Bügel 70 treten bei diesem Vorgang nicht störend in Erscheinung. Sobald die Saugorgane 56 keinen Unterdruck mehr aufweisen und insofern bei der Plattenzuführung die Druckplattenhinterkante 41 an den Saugorganen 56 vorbeigleitet, sorgen die Bügel 70 dafür, daß die abgewinkelte Druckplattenhinterkante 41 sich nicht an den Saugern der Saugorgane 56 verfängt.FIG. 10 shows that elastic brackets 70 are associated with the upper and middle rows of the suction members 56. The elasticity of the brackets 70 allows the pressure plate 9 to be used to be sucked in, that is to say the brackets 70 do not interfere with this process. As soon as the suction elements 56 no longer have a vacuum and, in this respect, the pressure plate trailing edge 41 on the plate feeder Suction elements 56 gliding past, the bracket 70 ensure that the angled pressure plate trailing edge 41 does not get caught on the suckers of the suction elements 56.

Claims (11)

  1. Device designed as a magazine for carrying away printing plates from a printing-plate cylinder of a printing machine, in particular for an automatic printing-plate exchange, with a plate carrying-away arrangement which has holding means for the respective printing plate, which can be activated, characterized in that the holding means (17) are arranged on a carriage (20) which can be moved along a guide (21) over approximately the entire device length in the interior of the magazine (4).
  2. Device according to Claim 1, characterized in that the holding means (17) are designed as suction members (18) which can be activated.
  3. Device according to one of the preceding claims, characterized in that the carriage (20) can be moved by means of a drive arrangement (25) having a magnetic coupling.
  4. Device according to one of the preceding claims, characterized in that the drive arrangement (25) has a non-ferromagnetic tube (26) which extends along the movement path of the carriage (20) and which is surrounded longitudinally displaceably by a ferromagnetic component (28), in particular steel ring (29), fastened on the carriage (20), there being arranged in the tube (26) a magnetic piston (27) which can be moved longitudinally by a pressure medium and, with the ferromagnetic component (28), forms the magnetic coupling.
  5. Device according to one of the preceding claims, characterized in that the guide (21) consists of two guide parts (22), in particular guide rods (23), lying at a spacing from one another.
  6. Device according to one of the preceding claims, characterized in that one of the guide parts (22) is formed by the drive arrangement (25).
  7. Device according to one of the preceding claims, characterized in that at least one of the holding means (17) is mounted on the carriage (20) movably transversely in relation to the plane of the printing plates (9, 10).
  8. Device according to one of the preceding claims, characterized in that the movably mounted holding means (17) can, in an upper position of the carriage (20), be moved by means of a positive control (32) in the direction of the plane of the printing plates (9, 10) in such a manner that the preferably bent printing-plate rear edge (41) of the used printing plate (10), on introduction into the cartridge (7), passes under a holding edge (43) of the cartridge (7).
  9. Device according to one of the preceding claims, characterized in that the positive control (32) is formed by a run-on slope (35), onto which a sensing member (rolls 33) for moving, in particular for pivoting, the movably mounted holding means (17) runs.
  10. Device according to one of the preceding claims, characterized in that at least one holding-down device (36), which can be actuated, for acting on the used printing plates (10) is arranged in the lower region of the magazine (4).
  11. Device according to one of the preceding claims, characterized in that at least one guide roller (37, 38, 39) for guiding the used printing plates (10) into the cartridge (7) is arranged in the lower region of the magazine (4).
EP92919010A 1991-09-12 1992-09-07 Process and device for carrying away printing plates from a printing machine Expired - Lifetime EP0603245B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4130359 1991-09-12
DE4130359A DE4130359C2 (en) 1991-09-12 1991-09-12 Device for removing and / or feeding printing plates from a printing press
PCT/EP1992/002056 WO1993004863A1 (en) 1991-09-12 1992-09-07 Process and device for carrying away printing plates from a printing machine

Publications (2)

Publication Number Publication Date
EP0603245A1 EP0603245A1 (en) 1994-06-29
EP0603245B1 true EP0603245B1 (en) 1995-05-24

Family

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Family Applications (3)

Application Number Title Priority Date Filing Date
EP92919010A Expired - Lifetime EP0603245B1 (en) 1991-09-12 1992-09-07 Process and device for carrying away printing plates from a printing machine
EP92919178A Expired - Lifetime EP0603261B1 (en) 1991-09-12 1992-09-07 Printing plate magazine for a printing machine and printing plate exchange process
EP92919011A Expired - Lifetime EP0603246B1 (en) 1991-09-12 1992-09-07 Device for removing and/or supplying printing plates of a printing machine

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP92919178A Expired - Lifetime EP0603261B1 (en) 1991-09-12 1992-09-07 Printing plate magazine for a printing machine and printing plate exchange process
EP92919011A Expired - Lifetime EP0603246B1 (en) 1991-09-12 1992-09-07 Device for removing and/or supplying printing plates of a printing machine

Country Status (9)

Country Link
US (3) US5537926A (en)
EP (3) EP0603245B1 (en)
JP (3) JP2669934B2 (en)
CN (3) CN1029212C (en)
AT (3) ATE122965T1 (en)
CA (2) CA2118583C (en)
DE (4) DE4130359C2 (en)
HK (2) HK12396A (en)
WO (3) WO1993004864A1 (en)

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EP0603261B1 (en) 1996-03-27
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DE59205874D1 (en) 1996-05-02
HK122496A (en) 1996-07-19
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JPH07500294A (en) 1995-01-12
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US5495805A (en) 1996-03-05
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ATE123255T1 (en) 1995-06-15
ATE122965T1 (en) 1995-06-15
US5537926A (en) 1996-07-23
WO1993004864A1 (en) 1993-03-18
CN1071370A (en) 1993-04-28
EP0603245A1 (en) 1994-06-29
DE59202367D1 (en) 1995-06-29
JP2669935B2 (en) 1997-10-29
CA2118582A1 (en) 1993-03-18
HK12396A (en) 1996-02-02
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JP2669934B2 (en) 1997-10-29
JP2760898B2 (en) 1998-06-04
CA2118583A1 (en) 1993-03-18
WO1993004863A1 (en) 1993-03-18
EP0603246B1 (en) 1995-05-31
CN1071368A (en) 1993-04-28
JPH07500295A (en) 1995-01-12
CN1029213C (en) 1995-07-05
WO1993004865A1 (en) 1993-03-18
EP0603246A1 (en) 1994-06-29
CN1030048C (en) 1995-10-18
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CN1071369A (en) 1993-04-28
US5443006A (en) 1995-08-22
CN1029212C (en) 1995-07-05
EP0603261A1 (en) 1994-06-29

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