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EP1776231B2 - Sleeve exchange system - Google Patents

Sleeve exchange system Download PDF

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Publication number
EP1776231B2
EP1776231B2 EP05764073A EP05764073A EP1776231B2 EP 1776231 B2 EP1776231 B2 EP 1776231B2 EP 05764073 A EP05764073 A EP 05764073A EP 05764073 A EP05764073 A EP 05764073A EP 1776231 B2 EP1776231 B2 EP 1776231B2
Authority
EP
European Patent Office
Prior art keywords
sleeves
devices
sleeve
transfer
transport
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.)
Active
Application number
EP05764073A
Other languages
German (de)
French (fr)
Other versions
EP1776231A1 (en
EP1776231B1 (en
Inventor
Dietmar Pötter
Franz Plasswich
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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
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Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1776231A1 publication Critical patent/EP1776231A1/en
Application granted granted Critical
Publication of EP1776231B1 publication Critical patent/EP1776231B1/en
Publication of EP1776231B2 publication Critical patent/EP1776231B2/en
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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
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/193—Transfer cylinders; Offset cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/44—Arrangements to accommodate interchangeable cylinders of different sizes to enable machine to print on areas of different sizes
    • 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
    • B41F27/14—Devices for attaching printing elements or formes to supports for attaching printing formes to intermediate supports, e.g. adapter members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the invention relates to a system for changing sleeves according to the preamble of patent claim 1.
  • Ink transfer rollers are all rollers of a printing press, which are involved in color transport between ink reservoir and substrate. In flexographic printing machines, these are the screen and cliché or printing rollers. For applications in which there are frequent job changes, the so-called sleeve technique has prevailed in conjunction with one-color ink transfer rollers. In this case, not complete ink transfer rollers are replaced with a job change, but only sleeves, so the sleeves, which are pushed onto the mandrels of ink transfer rollers, which remain in the printing presses, and these are deductible again. The ink transfer rollers are therefore often mounted at one end in the printing machine racks.
  • the free ends are often intercepted with interceptors, so that vibrations of the ink transfer rollers are avoided.
  • the interceptors Prior to changing the sleeves, the interceptors are removed from the mandrels of the ink transfer roller so that the sleeves can be withdrawn from the ink transfer roller via this resulting free end.
  • the term sleeves all possible sleeves, which can be used for ink transfer rollers, summarized.
  • the DE 100 22 558 C2 shows such a storage device in which a plurality of sleeves can be stored. After the operator has removed the sleeves from the transport device, they are attached edgewise on support elements. These carrier elements are retrieved with the sleeves from a robot head and fed to their destinations within the storage device.
  • the EP 1 195 245 A1 discloses another storage device in which data on the printing sleeves are stored. In order to find printing sleeves easier, these have transponders that can be read by data exchange devices.
  • a disadvantage is that there are many types and devices of many printing companies, which serve the storage, transport and / or the application of sleeves on mandrels of ink transfer rollers. In any case, but the operator must take the sleeves at least once in the hand. In the case described, the operating personnel must even feed the sleeves of the transport device and also remove them, regardless of whether it is a set-up or a disassembling operation on the printing press. During a set-up or disarming process, operators may place the sleeves in incorrect positions in the printing press, in the transport device, or in the storage device. In addition, when changing the sleeves due to the sometimes heavy weight of the sleeves accident hazards for the operator. Careless handling of the sleeves can also damage them.
  • the object of the present invention is thus to provide a system for changing sleeves which can be pushed onto mandrels of ink transfer rollers of a printing press, which avoids the disadvantages mentioned.
  • the sleeve changing system comprises sleeve transfer means by which the sleeves are transportable between the storage device and / or the transport means and the domes of ink transfer rollers in the at least one printing machine and / or between the storage device and the transport means.
  • the printing sleeves can be removed directly from the storage device and, after being brought to the printing press, also directly onto the mandrels of ink transfer rollers pushed.
  • transport means on or in which the sleeves are to be deposited by the means for transfer after removal from the storage device. These transport then transport the sleeves to the printing press, where then remove these or other means for transfer the sleeves and there postpone at least partially on the spines of color transfer agent.
  • the sleeves transfer means may push the sleeves onto the mandrel two-thirds the length of the sleeve.
  • the means for transporting sleeves are also useful for conveying the sleeves along the reverse path, that is, from the thorns of ink transfer rollers to the transport means, to the storage device and / or between the transport means and the storage device.
  • a transport chain is created with which sleeves can be transported without the operator must carry the sleeves a portion of the way manually, so that the disadvantages mentioned no longer occur.
  • the means for transferring sleeves sleeve receiving devices may be different. So these may be grippers that grip the sleeves clamped or exciting and then from a storage device in which the sleeves are perpendicular, remove and then postpone on the pins of ink transfer rollers.
  • Sleeve receiving devices may for this purpose be attached to robot arms such that the sleeve receiving devices have three translational degrees of freedom and can be rotated about at least two axes of rotation.
  • the means for transferring sleeves may comprise a device which moves the means of transport in three dimensions relative to the printing press. To push the sleeves then reaches a linear movement of the sleeves along their axes.
  • the sleeve receiving devices at least partially protrude into the interior of the sleeve.
  • the sleeves which carry print motifs as print cylinder sleeves and as anilox roller sleeves for the color transport on their outer surfaces, can be taken without the risk of damage.
  • a computing and control unit is provided.
  • These control drive means for driving the means for transfer of sleeves such that sleeve receiving means of thorns of ink transfer rollers can be brought into positions in which a transfer of sleeves from the sleeve receiving means on the mandrels of ink transfer rollers, in the storage device or in the transport means or vice versa feasible ,
  • the transport can be done in a particularly simple manner.
  • the drive means may be, for example, electric motors which act on hinges or traversing units.
  • the arithmetic and control unit the positions of the mandrels of ink transfer rollers, where a change of the sleeves is to make, and the desired positions or and the actual positions of the sleeves in the printing press, in the transport and / or in the storage device. From the parameters of the print job, in particular from the predetermined assignment of certain sleeves to certain thorns of ink transfer rollers, so that the computing and control unit can equip the printing press without the intervention of the operator independently and error-free.
  • the means for transporting sleeves comprise means for rotating or tilting the sleeves.
  • the unilaterally exposed mandrels for the purpose of sleeve replacement are subject to gravity and are tilted depending on the rigidity of the bearing supporting the mandrels.
  • it is important to ensure that the sleeves move from or to the means of transport before pushing or pushing the sleeves onto or off the spikes can be that the sleeve axes are coaxial with the mandrel axes.
  • This coaxiality can be constantly checked by sensors in a further embodiment of the invention.
  • the sensors for this purpose constantly determine the relative angular position of the axis of the sleeve on the sleeve receiving device to the aligned with the axis of the ink transfer roller line.
  • the relative angular positions determined by the sensors are transmitted to the arithmetic and control unit, which emits signals to actuators of the means for transporting sleeves until the sleeve receiving devices are positioned such that the axis of the mandrel of a ink transfer roller is aligned with the axis of a sleeve when the sleeve is received by the sleeve receiving device.
  • the means for transfer and the at least one printing press have displacement means with which the sleeves can be displaced along their axes.
  • the displacement means can act on the outer surfaces of the sleeves, so that they can pull and push them. It is particularly advantageous, however, to provide displacement means on the means for transfer and on the printing machine, which can exert pressure only on the end faces of the sleeves in order to push them. In doing so, it is avoided to affect the outer surfaces of sleeves.
  • sleeve receiving devices can be adapted to these different diameters. In a particularly simple way this is possible by the sleeve receiving devices are configured on and coupled off. Depending on the diameters of a sleeve to be transported, a suitable sleeve receiving device can be coupled to the means for transfer.
  • the sleeve receiving means are formed like a mandrel and are variable in their outer diameter.
  • the sleeve receiving devices can thus be guided into the interior and then brought into a frictional operative connection.
  • the sleeve is secured against displacement relative to the sleeve receiving device.
  • the means for transfer can push the sleeves directly onto the mandrels of ink transfer rollers, so that at least partially can be dispensed with shifting means.
  • a method for changing sleeves wherein the computing and control unit designs an array of sleeves in the transport, wherein in the transport means a position for receiving at least one further sleeve remains free. In this way, a maximum number of sleeves can be transported in the transport.
  • a sleeve of the printing press is first removed in an advantageous development of the method and fed to the free position in the transport. Subsequently, a new sleeve is removed from the transport and fed to the previously released mandrel. This process is repeated until all the sleeves of the printing machine to be changed have been removed from or removed from the printing press. This unnecessarily be avoided by the means for transfer paths that would arise if, for example, first removed all sleeves from the printing press and then new sleeves of the printing press would be supplied.
  • Fig. 1 shows a printing press 1, which has side frames 2 and 3.
  • the ink transfer rollers 4 are stored inside in bearing blocks, not shown.
  • the bearing blocks are on rails, also not shown, which are mounted on the side frame 2, relative to the side frames displaced.
  • the ink transfer rollers 4 can be employed on the counter-pressure cylinder, not shown, or against each other, so as to ensure a color transfer to printing material, which is guided over the impression cylinder.
  • bearing blocks are also slidably mounted on rails. These brackets have bearings which are movable relative to the bearing blocks, so that the mandrels 5 of the ink transfer rollers 4 can be stored or released either.
  • the ink transfer rollers 4 can be acted upon with sleeves 6, which can be pushed in the direction z on the mandrels 5.
  • a transport device 8 For the delivery or removal of sleeves 6 is a transport device 8 is available, which can be moved relative to the printing machine 1.
  • This transport device 8 can be configured as a pallet.
  • the transport device 8 includes a new sleeve 6, which is to be supplied to the vacant mandrel 5a of the printing unit 7.
  • this has a free position, which is designed as a vertically rising retaining pin 9.
  • a Transfer device 10 is provided for the transfer of the sleeves 6 and 6a between printing machine 1 and transport device 8 .
  • a support member 11 is provided, which is formed like a mandrel and protrudes, for example, to a third into the interior of the sleeve 6a.
  • the transfer device 10 is, as in the FIGS. 1 and 2 can be seen suspended from rails 13, 14. This suspension allows a displacement of the transfer device 10 along a horizontal plane, which is spanned by the directional arrows x and z. Serve not shown drive motors.
  • the transfer device also has two hinges 15 and 16 whose axes of rotation extend parallel to the directional arrow x.
  • the hinges 15, 16 allow a height adjustment of the sleeves 6, 6a in the direction y.
  • the sleeves 6, 6a can also be tilted so that these 6, 6a can be transferred from a vertical position to a horizontal position.
  • the hinges are driven by drive motors, such as electric motors.
  • the transfer device 10 Due to the described possibilities of movement of the transfer device 10, it is now possible to bring a sleeve 6, 6a in front of a mandrel 5, 5a such that the main axis of inertia of the sleeve 6, 6a is aligned with the axis of this mandrel 5, 5a. Due to the play of the hinges 15, 16, but also due to a slight pitching movement of the mandrels 5 when exposing lying in the region of the side frame 3 ends, it may happen in practice that the axes do not align, but diverge in the direction z. To counteract this effect, the transfer device 10 has a Justagerehgelenk 18 whose axis of rotation also extends in the direction x.
  • sensors can be determined whether the axes are aligned. If the adjustment of the axes has taken place and the axes run coaxially, the transfer device 10 can be displaced in total in the direction z until the carrying element 11 contacts the mandrel 5, 5a. If this is the case, the sleeve 6, 6a is already pushed to a large extent on the mandrel 5, 5a. In order to be able to push the sleeve 6, 6a completely onto the mandrel, the slider 12 is displaceable in the direction z relative to the transfer device 10. The slider 12 acts on the lower arm 17 facing the front side of the sleeve 6, 6a.
  • mandrels 5, 5a of ink transfer rollers 4 have small pins.
  • the sleeves 6, 6a then have complementary grooves, so that when the sleeve is fully pushed onto the mandrel, the groove comprises the pin. After sliding the sleeve 6, 6a, this is thus automatically adjusted relative to the longitudinal axis, but also in the circumferential direction relative to the mandrel.
  • the transfer device has a further rotary joint 19 whose axis of rotation runs concentrically with the sleeve axis, so that a rotation of the sleeve 6, 6a relative to the mandrel 5, 5a is possible before or during the pushing-on process, so that Pin and groove are engageable with each other.
  • a sleeve 6, 6a to be deported from a mandrel 5, 5a the axes of the respective mandrel 5, 5a and the support member 11 are aligned, so that the axis of the sleeve is also aligned with the axis of the mandrel, when the sleeve on the support member 11 is pushed, but is still at least partially in contact with the mandrel.
  • a pusher 20 pushes the sleeve away from the mandrel 5, 5a.
  • Such a pusher 20 may be provided on each mandrel, but is shown for simplicity only for the printing unit 7. After the sliding operation, the sleeve 6, 6a completely comprises the support member 11.
  • the support member 11 is advantageously variable in its outer diameter, so that a frictional connection between the support member 11 and the sleeve 6, 6a can be produced. Subsequently, the sleeve 6, 6a can be completely withdrawn with the transfer device from the mandrel 5, 5a.
  • sleeves 6, 6a with different inner diameters can be used. This is especially the case when first an adapter sleeve is pushed onto the mandrel 5, 5a and then a sleeve 6, 6a is pushed onto the adapter sleeve. So that all sleeves 6, 6a can be frictionally engaged with the carrying element from the inside, carrying elements 11, 11a, 11b with different outside diameters are provided.
  • a support member may be provided for each usable in the printing machine 1 inner diameter of the sleeves 6, 6a. Due to the degrees of freedom of movement of the transfer device 10, this can automatically change the support elements 11, 11 a, 11 b.
  • the transfer device 10 has a coupling 21, which establishes or interrupts a compressed air and / or electrical connection between the transfer device 10 and the support element.
  • the Fig. 2 shows the view II-II according to FIG. 1 ,
  • the side frame 3 has recesses 22 in the region of the individual inking units, through which the ink transfer rollers 4 can be reached in such a way that the sleeves 6, 6a can be pulled off the thorns 5, 5a through the recesses 22.
  • the ink transfer roller 4 of each inking unit has been illustrated.
  • two ink transfer rollers 4, namely an anilox roller and a pressure roller can be found on flexographic printing machines per inking unit.
  • the rails 14 serve to move the transfer device 10 parallel to the front of the side frame 3.
  • the side frame 3 is free of stems or elevations.
  • LIST OF REFERENCE NUMBERS 1 press 2 side frame 3 side frame 4 Ink transfer roller 5, 5a mandrels 6 6a sleeves 7 printing unit 8th transport device 9 holding mandrel 10 transfer device 11, 11a, b carrying member 12 pusher 13 rails 14 rails 15 swivel 16 swivel 17 Lower arm 18 Justagesearchgelenk 19 swivel 20 Pusher 21 clutch 22 recess 23 24

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Specific Conveyance Elements (AREA)

Abstract

A system for the replacement of sleeves that can be slipped on arbors of ink transfer rollers of at least printing machine has a storage device, in which the sleeves not being used in current ink transfer can be stored, and a transport device, with which several sleeves can be transported to the printing machine. The system has a transfer device the facilitates the transfer of the sleeves between the storage device and/or the transport device and the arbors of the ink transfer rollers, and/or between the storage device and the transport device.

Description

Die Erfindung betrifft ein System zum Wechseln von Hülsen gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a system for changing sleeves according to the preamble of patent claim 1.

In der Regel müssen bei Druckmaschinen zum Wechseln des Druckauftrags Teile der Farbübertragungswalzen ausgetauscht werden. Farbübertragungswalzen sind dabei alle Walzen einer Druckmaschine, die am Farbtransport zwischen Farbreservoir und Bedruckstoff beteiligt sind. Bei Flexodruckmaschinen sind dies die Raster- und die Klischee- oder Druckwalzen. Für Anwendungen, in denen es zu häufigen Auftragswechseln kommt, hat sich die so genannte Sleevetechnik in Verbindung mit einendig gelagerten Farbübertragungswalzen durchgesetzt. Dabei werden bei einem Auftragswechsel nicht komplette Farbübertragungswalzen ausgetauscht, sondern nur Hülsen, also die Sleeves, welche auf die Dorne von Farbübertragungswalzen, welche in den Druckmaschinen verbleiben, aufschiebbar und von diesen wieder abziehbar sind. Die Farbübertragungswalzen sind daher häufig einendig in den Druckmaschinengestellen gelagert. Im Druckbetrieb werden die freien Enden oft mit Abfanglagern abgefangen, so dass Schwingungen der Farbübertragungswalzen vermieden werden. Vor dem Wechseln der Hülsen werden die Abfanglager von den Dornen der Farbübertragungswalze entfernt, so dass die Hülsen über dieses so entstandene freie Ende von der Farbübertragungswalze abgezogen werden können. Unter dem Oberbegriff Hülsen sind alle möglichen Hülsen, welche für Farbübertragungswalzen Verwendung finden können, zusammengefasst. Dazu zählen nicht nur Hülsen, welche für den Farbtransport geeignet sind, sondern auch so genannten Adapterhülsen, welche auf den Dorn einer Farbübertragungswalze aufgeschoben sein können und auf welche eine weitere Hülse, welches eine Hülse zum Farbtransport oder wiederum eine Adapterhülse sein kann, aufgeschoben werden kann. In Druckmaschinen werden folglich zahlreiche verschiedene Hülsen mit sich unterscheidenden Innen- und Außendurchmessern verwendet.In general, in printing presses to change the print job parts of the ink transfer rollers must be replaced. Ink transfer rollers are all rollers of a printing press, which are involved in color transport between ink reservoir and substrate. In flexographic printing machines, these are the screen and cliché or printing rollers. For applications in which there are frequent job changes, the so-called sleeve technique has prevailed in conjunction with one-color ink transfer rollers. In this case, not complete ink transfer rollers are replaced with a job change, but only sleeves, so the sleeves, which are pushed onto the mandrels of ink transfer rollers, which remain in the printing presses, and these are deductible again. The ink transfer rollers are therefore often mounted at one end in the printing machine racks. In printing operation, the free ends are often intercepted with interceptors, so that vibrations of the ink transfer rollers are avoided. Prior to changing the sleeves, the interceptors are removed from the mandrels of the ink transfer roller so that the sleeves can be withdrawn from the ink transfer roller via this resulting free end. The term sleeves all possible sleeves, which can be used for ink transfer rollers, summarized. These include not only sleeves which are suitable for color transport, but also so-called adapter sleeves, which can be pushed onto the mandrel of a dye transfer roller and on which another sleeve, which can be a sleeve for color transport or turn an adapter sleeve, can be postponed , Printing presses consequently use a large number of different sleeves with differing inner and outer diameters.

Bei Druckmaschinen insbesondere mit mehreren Farbwerken kommen so pro Druckauftrag zahlreiche Hülsen zusammen. Die Gesamtheit der Druckhülsen, die für verschiedene Druckaufträge verwendet werden, müssen in einem Druckbetrieb verwaltet, gelagert und bei einem Auftragswechsel zum Teil von und zu den Dornen von Farbübertragungswalzen der Druckmaschinen bewegt werden.In printing presses, in particular with multiple inking units, numerous sleeves come together per print job. The entirety of the printing sleeves, which are used for various print jobs, must be managed in a printing operation, stored and moved during a job change in part from and to the thorns of ink transfer rollers of the printing press.

Um diese Aufgaben möglichst einfach zu gestalten, sind bereits verschiedene Hilfsmittel bekannt. So zeigt die DE 102 23 414 eine Transportvorrichtung für Druckhülsen mit einer Mehrzahl von Tragedornen. Diese Transportvorrichtung kann an eine Hubvorrichtung angekoppelt werden. Mit dieser Hubvorrichtung können Hülsen auf die Höhe des Druckwerk gebracht werden, welches mit diesen Hülsen ausgestattet werden soll. Das Bedienpersonal braucht nun lediglich in einer im wesentlichen linearen Bewegung die Hülsen von den Tragedornen abziehen und auf die Dorne der Farbübertragungswalzen aufschieben. Auf umgekehrte Weise lassen sich nicht mehr gebrauchte Hülsen aus den Farbwerken entfernen. Nach dem Abkoppeln der Transportvorrichtung kann diese zu einer Lager- oder Speichervorrichtung transportiert werden.To make these tasks as simple as possible, various tools are already known. That's how it shows DE 102 23 414 a transport device for printing sleeves with a plurality of support pins. This transport device can be coupled to a lifting device. With this lifting sleeves can be brought to the height of the printing unit, which is to be equipped with these sleeves. The operator now only needs to withdraw the sleeves from the carrier pins in a substantially linear movement and push them onto the mandrels of the ink transfer rollers. In the reverse manner, unused sleeves can be removed from the inking units. After uncoupling the transport device, this can be transported to a storage or storage device.

Die DE 100 22 558 C2 zeigt eine solche Speichervorrichtung, in der eine Vielzahl von Hülsen gelagert werden können. Nachdem das Bedienpersonal die Hülsen aus der Transportvorrichtung entnommen hat, werden diese hochkant auf Trägerelemente aufgesteckt. Diese Trägerelemente werden mit den Hülsen von einem Roboterkopf abgeholt und ihren Bestimmungsorten innerhalb der Speichervorrichtung zugeführt.The DE 100 22 558 C2 shows such a storage device in which a plurality of sleeves can be stored. After the operator has removed the sleeves from the transport device, they are attached edgewise on support elements. These carrier elements are retrieved with the sleeves from a robot head and fed to their destinations within the storage device.

Die EP 1 195 245 A1 offenbart eine weitere Einlagerungsvorrichtung, bei der Daten über die Druckhülsen gespeichert werden. Um Druckhülsen einfacher auffinden zu können, weisen diese Transponder auf, die von Datenaustauschgeräten ausgelesen werden können.The EP 1 195 245 A1 discloses another storage device in which data on the printing sleeves are stored. In order to find printing sleeves easier, these have transponders that can be read by data exchange devices.

Nachteilig ist jedoch, dass es in vielen Druckereibetrieben verschiedene Arten und Vorrichtungen gibt, welche der Speicherung, dem Transport und/oder dem Aufbringen von Hülsen auf Dorne von Farbübertragungswalzen dienen. In jedem Fall muss aber das Bedienpersonal die Hülsen zumindest einmal in die Hand nehmen. Das Bedienpersonal muss im geschilderten Fall sogar die Hülsen der Transportvorrichtung zuführen und auch dieser entnehmen, wobei gleichgültig ist, ob es sich um einen Rüst- oder einen Abrüstvorgang an der Druckmaschine handelt. Bei einem Rüst- oder Abrüstvorgang kann es vorkommen, dass das Bedienpersonal die Hülsen an falschen Positionen in der Druckmaschine, in der Transportvorrichtung oder in der Speichervorrichtung anordnet. Zudem bestehen beim Wechseln der Hülsen aufgrund des teilweise hohen Gewichts der Hülsen Unfallgefahren für das Bedienpersonal. Durch eine unvorsichtige Handhabung der Hülsen können diese außerdem beschädigt werden.A disadvantage, however, is that there are many types and devices of many printing companies, which serve the storage, transport and / or the application of sleeves on mandrels of ink transfer rollers. In any case, but the operator must take the sleeves at least once in the hand. In the case described, the operating personnel must even feed the sleeves of the transport device and also remove them, regardless of whether it is a set-up or a disassembling operation on the printing press. During a set-up or disarming process, operators may place the sleeves in incorrect positions in the printing press, in the transport device, or in the storage device. In addition, when changing the sleeves due to the sometimes heavy weight of the sleeves accident hazards for the operator. Careless handling of the sleeves can also damage them.

Die Aufgabe der vorliegenden Erfindung besteht also darin, ein System zum Wechseln von auf Dorne von Farbübertragungswalzen einer Druckmaschine aufschiebbare Hülsen, welches die genannten Nachteile vermeidet.The object of the present invention is thus to provide a system for changing sleeves which can be pushed onto mandrels of ink transfer rollers of a printing press, which avoids the disadvantages mentioned.

Die Aufgabe wird gelöst durch ein System zum Wechseln von Hülsen mit den Merkmalen des kennzeichnenden Teils des Anspruchs 1.The object is achieved by a system for changing sleeves with the features of the characterizing part of claim 1.

Demnach weist das System zum Wechseln von Hülsen Mittel zum Transfer von Hülsen auf, mit welchen die Hülsen zwischen der Speichervorrichtung und/oder den Transportmitteln und den Domen von Farbübertragungswalzen in der zumindest einen Druckmaschine und/oder zwischen der Speichervorrichtung und den Transportmitteln transportierbar sind.Accordingly, the sleeve changing system comprises sleeve transfer means by which the sleeves are transportable between the storage device and / or the transport means and the domes of ink transfer rollers in the at least one printing machine and / or between the storage device and the transport means.

Mit diesen Mitteln zum Transfer sind die Druckhülsen direkt aus der Speichervorrichtung entnehmbar und nach dem Heranbringen an die Druckmaschine auch direkt auf die Dorne von Farbübertragungswalzen aufschiebbar. Es können aber auch Transportmittel vorgesehen sein, auf oder in welchen die Hülsen von den Mitteln zum Transfer nach der Entnahme aus der Speichervorrichtung abzulegen sind. Diese Transportmittel transportieren die Hülsen dann zur Druckmaschine, wo dann diese oder weitere Mittel zum Transfer die Hülsen entnehmen und dort auf die Dorne von Farbübertragungsmittel zumindest teilweise aufschieben. Die Mittel zum Transfer von Hülsen können die Hülsen beispielsweise zu zwei Dritteln der Länge der Hülse auf den Dorn aufschieben. Selbstverständlich sind die Mittel zum Transport von Hülsen auch verwendbar, um die Hülsen entlang des umgekehrten Weges, das heißt von den Dornen von Farbübertragungswalzen zu den Transportmitteln, zu der Speichereinrichtung und/oder zwischen den Transportmitteln und der Speichereinrichtung zu befördern. Mit der Erfindung wird also eine Transportkette geschaffen, mit welcher Hülsen transportiert werden können, ohne dass das Bedienpersonal die Hülsen ein Teilstück des Weges händisch befördern muss, so dass die eingangs genannten Nachteile nicht mehr auftreten.With these means of transfer, the printing sleeves can be removed directly from the storage device and, after being brought to the printing press, also directly onto the mandrels of ink transfer rollers pushed. But it can also be provided transport means on or in which the sleeves are to be deposited by the means for transfer after removal from the storage device. These transport then transport the sleeves to the printing press, where then remove these or other means for transfer the sleeves and there postpone at least partially on the spines of color transfer agent. For example, the sleeves transfer means may push the sleeves onto the mandrel two-thirds the length of the sleeve. Of course, the means for transporting sleeves are also useful for conveying the sleeves along the reverse path, that is, from the thorns of ink transfer rollers to the transport means, to the storage device and / or between the transport means and the storage device. With the invention, therefore, a transport chain is created with which sleeves can be transported without the operator must carry the sleeves a portion of the way manually, so that the disadvantages mentioned no longer occur.

Um die Hülsen transportieren zu können, weisen die Mittel zum Transfer von Hülsen Hülsenaufnahmeeinrichtungen auf. Diese Hülsenaufnahmeeinrichtungen können verschieden ausgeprägt sein. So können dies Greifer sein, die die Hülsen klemmend oder spannend ergreifen und anschließend aus einer Speichervorrichtung, in welcher die Hülsen senkrecht stehen, entnehmen und dann auf die Dorne von Farbübertragungswalzen aufschieben. Hülsenaufnahmeeinrichtungen können dazu derart an Roboterarmen befestigt sein, dass die Hülsenaufnahmeeinrichtungen drei Translationsfreiheitsgrade haben und um zumindest zwei Rotationsachsen gedreht werden können. Werden die Hülsen von Transportmitteln transportiert, so können die Mittel zum Transfer von Hülsen eine Vorrichtung umfassen, das die Transportmittel in drei Dimensionen relativ zur Druckmaschine bewegt. Zum Aufschieben der Hülsen reicht dann einer lineare Bewegung der Hülsen entlang ihrer Achsen.To be able to transport the sleeves, the means for transferring sleeves sleeve receiving devices. These sleeve receiving devices may be different. So these may be grippers that grip the sleeves clamped or exciting and then from a storage device in which the sleeves are perpendicular, remove and then postpone on the pins of ink transfer rollers. Sleeve receiving devices may for this purpose be attached to robot arms such that the sleeve receiving devices have three translational degrees of freedom and can be rotated about at least two axes of rotation. When the sleeves are transported by means of transport, the means for transferring sleeves may comprise a device which moves the means of transport in three dimensions relative to the printing press. To push the sleeves then reaches a linear movement of the sleeves along their axes.

Dabei ist es von besonderem Vorteil, wenn die Hülsenaufnahmeeinrichtungen zumindest teilweise in das Innere der Hülse hineinragen. Auf diese Weise lassen sich die Hülsen, die als Druckwalzenhülsen Druckmotive und als Rasterwalzenhülsen Näpfchen für den Farbtransport auf ihren Außenoberflächen tragen, ohne Gefahr von Beschädigungen aufnehmen.It is particularly advantageous if the sleeve receiving devices at least partially protrude into the interior of the sleeve. In this way, the sleeves, which carry print motifs as print cylinder sleeves and as anilox roller sleeves for the color transport on their outer surfaces, can be taken without the risk of damage.

In weiterer Ausgestaltung der Erfindung ist eine Rechen- und Steuereinheit vorgesehen. Diese steuern Antriebsmittel zum Antrieb der Mittel zum Transfer von Hülsen derart, dass Hülsenaufnahmeinrichtungen von Dornen von Farbübertragungswalzen in Positionen bringbar sind, in welchen ein Transfer von Hülsen von den Hülsenaufnahmeeinrichtungen auf die Dorne von Farbübertragungswalzen, in die Speichervorrichtung oder in die Transportmittel oder umgekehrt durchführbar ist. Auf diese Weise kann der Transport auf besonders einfache Weise erfolgen. Um die Hülsen nun beispielsweise nur noch auf die Dorne aufzubringen, brauchen die Hülsen nur noch entlang ihrer Achsen verschoben zu werden. Die Antriebsmittel können dabei beispielsweise Elektromotoren sein, welche auf Drehgelenke oder Verfahreinheiten wirken.In a further embodiment of the invention, a computing and control unit is provided. These control drive means for driving the means for transfer of sleeves such that sleeve receiving means of thorns of ink transfer rollers can be brought into positions in which a transfer of sleeves from the sleeve receiving means on the mandrels of ink transfer rollers, in the storage device or in the transport means or vice versa feasible , In this way, the transport can be done in a particularly simple manner. For example, to apply the sleeves only on the mandrels, the sleeves need only be moved along their axes. The drive means may be, for example, electric motors which act on hinges or traversing units.

Besonders vorteilhaft ist es dabei, wenn der Rechen- und Steuereinheit die Lagen der Dorne von Farbübertragungswalzen, bei denen ein Wechsel der Hülsen vorzunehmen ist, und die Soll-Positionen beziehungsweise und die Ist-Positionen der Hülsen in der Druckmaschine, in den Transportmitteln und/oder in der Speichervorrichtung bekannt sind. Aus den Parametern des Druckauftrages, insbesondere aus der vorher festgelegten Zuordnung bestimmter Hülsen zu bestimmten Dornen von Farbübertragungswalzen, kann damit die Rechen- und Steuereinheit die Druckmaschine ohne Eingreifen des Bedienpersonals selbstständig und fehlerfrei rüsten.It is particularly advantageous if the arithmetic and control unit, the positions of the mandrels of ink transfer rollers, where a change of the sleeves is to make, and the desired positions or and the actual positions of the sleeves in the printing press, in the transport and / or in the storage device. From the parameters of the print job, in particular from the predetermined assignment of certain sleeves to certain thorns of ink transfer rollers, so that the computing and control unit can equip the printing press without the intervention of the operator independently and error-free.

Um eine genaue Positionierung der Hülsen vor den Dornen von Farbübertragungswalzen zu ermöglichen, weisen die Mittel zum Transport von Hülsen Mittel zum Drehen oder Kippen der Hülsen auf. Die zum Zwecke des Hülsenwechsels einendig frei liegenden Dorne unterliegen der Schwerkraft und sind je nach Steifigkeit des die Dorne lagernden Lager gekippt. Da jedoch zwischen den Dornen und den Hülsen nur ein sehr geringes Spiel vorherrscht, ist es wichtig, vor dem Auf- oder Abschieben der Hülsen auf die oder von den Dornen dafür Sorge zu tragen, dass die Hülsen so von oder zu den Mitteln zum Transport bewegt werden können, dass die Hülsenachsen koaxial zu den Dornachsen verlaufen. Diese Koaxialität kann in weiterer Ausgestaltung der Erfindung ständig von Sensoren überprüft werden. Die Sensoren ermitteln zu diesem Zweck ständig die relative Winkellage der Achse der Hülse auf der Hülsenaufnahmeeinrichtung zu der mit der Achse der Farbübtragungswalze fluchtenden Linie.In order to allow accurate positioning of the sleeves in front of the spikes of ink transfer rollers, the means for transporting sleeves comprise means for rotating or tilting the sleeves. The unilaterally exposed mandrels for the purpose of sleeve replacement are subject to gravity and are tilted depending on the rigidity of the bearing supporting the mandrels. However, since there is very little play between the spikes and the sleeves, it is important to ensure that the sleeves move from or to the means of transport before pushing or pushing the sleeves onto or off the spikes can be that the sleeve axes are coaxial with the mandrel axes. This coaxiality can be constantly checked by sensors in a further embodiment of the invention. The sensors for this purpose constantly determine the relative angular position of the axis of the sleeve on the sleeve receiving device to the aligned with the axis of the ink transfer roller line.

In besonders vorteilhafter Ausgestaltung der Erfindung werden die von den Sensoren ermittelten relativen Winkellagen an die Rechen- und Steuereinheit übermittelt, welche so lange Signale an Aktuatoren der Mittel zum Transport von Hülsen abgibt, bis die Hülsenaufnahmeeinrichtungen derart positioniert sind, dass die Achse des Dorns einer Farbübertragungswalze mit der Achse einer Hülse fluchtet, wenn die Hülse von der Hülsenaufnahmeeinrichtung aufgenommen wurde. Durch diese Maßnahme wird ein Verkanten von Hülse und Dorn während des Auf- oder Abschiebevorganges vermieden. Das Positionieren erfolgt aufgrund der beschriebenen Annäherung unabhängig davon, wie weit sich der Dorn infolge des Freigebens des einen Endes absenkt. Dies ist insbesondere deshalb wichtig, weil die Lagerungen der Druckwalzen einem Verschleiß unterliegen, aber auch verschlissene Lagerteile ausgetauscht werden und deshalb die Absenkstrecke der freigelegten Enden der Dorne variiert. Ist eine solche exakte Positionierung erfolgt, können beispielsweise die Mittel zum Transport oder die Hülsenaufnahmeeinrichtung fest, aber lösbar an dem Dorn angekoppelt werden, um eine Dejustierung zu vermeiden. Sollte dennoch eine Dejustierung eine Verkantung von Hülsen und Dorn erfolgen, was sich durch Überwachungsmittel, etwa einer Kräftemessvorrichtung, feststellen lässt, kann der Auf- oder Abschiebevorgang abgebrochen werden, so dass größere Beschädigungen der Mittel zum Transfer, der Hülsen und/oder der Druckmaschine vermieden werden.In a particularly advantageous embodiment of the invention, the relative angular positions determined by the sensors are transmitted to the arithmetic and control unit, which emits signals to actuators of the means for transporting sleeves until the sleeve receiving devices are positioned such that the axis of the mandrel of a ink transfer roller is aligned with the axis of a sleeve when the sleeve is received by the sleeve receiving device. By this measure, tilting of the sleeve and mandrel during the up or Abschiebevorganges be avoided. Positioning occurs due to the described approach regardless of how far the mandrel descends due to the release of one end. This is particularly important because the bearings of the pressure rollers are subject to wear, but also worn bearing parts are exchanged and therefore varies the Absenkstrecke the exposed ends of the mandrels. If such an exact positioning has occurred, for example, the means for transport or the sleeve receiving device fixed, but solvable be coupled to the mandrel to avoid misalignment. If, however, a maladjustment of sleeves and mandrel occur, which can be determined by monitoring means, such as a force measuring device, the up or Abschiebevorgang can be canceled, so that greater damage to the means for transfer, the sleeves and / or the printing machine avoided become.

Erfindungsgemäß weisen die Mittel zum Transfer und die zumindest eine Druckmaschine Verschiebemittel auf, mit welchen sich die Hülsen entlang ihrer Achsen verschieben lassen. Dabei können die Verschiebemittel auf die Außenoberflächen der Hülsen wirken, so dass sie diese ziehen und schieben können. Von besonderem Vorteil ist es aber, an den Mitteln zum Transfer und an der Druckmaschine Verschiebemittel vorzusehen, welche nur auf die Stirnseiten der Hülsen Druck ausüben können, um diese zu schieben. Dabei wird es vermieden, die Außenoberflächen von Hülsen in Mitleidenschaft zu ziehen.According to the invention, the means for transfer and the at least one printing press have displacement means with which the sleeves can be displaced along their axes. In this case, the displacement means can act on the outer surfaces of the sleeves, so that they can pull and push them. It is particularly advantageous, however, to provide displacement means on the means for transfer and on the printing machine, which can exert pressure only on the end faces of the sleeves in order to push them. In doing so, it is avoided to affect the outer surfaces of sleeves.

Wie eingangs beschrieben wurde, werden in Druckmaschinen Hülsen mit verschiedenen Innen- und Außendurchmessern verwendet. Aus diesem Grunde ist es vorteilhaft, wenn sich die Hülsenaufnahmeeinrichtungen an diese verschiedenen Durchmesser angepasst werden können. Auf besonders einfache Weise ist dieses möglich, indem die Hülsenaufnahmeeinrichtungen an- und abkoppelbar ausgestaltet sind. Je nach zu transportierenden Durchmessern einer Hülsen kann eine passende Hülsenaufnahmeeinrichtung an die Mittel zum Transfer angekoppelt werden.As described above, sleeves with different inner and outer diameters are used in printing presses. For this reason, it is advantageous if the sleeve receiving devices can be adapted to these different diameters. In a particularly simple way this is possible by the sleeve receiving devices are configured on and coupled off. Depending on the diameters of a sleeve to be transported, a suitable sleeve receiving device can be coupled to the means for transfer.

Vorteilhaft ist dabei, wenn die Hülsenaufnahmeeinrichtungen dornförmig ausgebildet sind und in ihrem Außendurchmesser veränderbar sind. Die Hülsenaufnahmeeinrichtungen können damit in das Innere hineingeführt werden und anschließend in eine reibschlüssige Wirkverbindung gebracht werden. Damit ist die Hülse gegen ein Verschieben relativ zur Hülsenaufnahmeeinrichtung gesichert. Ist dieses der Fall, können die Mittel zum Transfer die Hülsen direkt auf die Dorne von Farbübertragungswalzen aufschieben, so dass zumindest teilweise auf Verschiebemittel verzichtet werden kann.It is advantageous if the sleeve receiving means are formed like a mandrel and are variable in their outer diameter. The sleeve receiving devices can thus be guided into the interior and then brought into a frictional operative connection. Thus, the sleeve is secured against displacement relative to the sleeve receiving device. If this is the case, the means for transfer can push the sleeves directly onto the mandrels of ink transfer rollers, so that at least partially can be dispensed with shifting means.

Zur Lösung der erwähnten Aufgabe dienen die Merkmale des Anspruchs 12, wonach ein Verfahren zum Wechseln von Hülsen vorgesehen ist, bei dem die Rechen- und Steuereinheit eine Anordnung von Hülsen in den Transportmitteln entwirft, wobei in den Transportmitteln eine Position zur Aufnahme zumindest einer weiteren Hülse frei bleibt. Auf diese Weise kann in den Transportmitteln eine Maximalzahl an Hülsen transportiert werden.To achieve the object mentioned serve the features of claim 12, according to which a method for changing sleeves is provided, wherein the computing and control unit designs an array of sleeves in the transport, wherein in the transport means a position for receiving at least one further sleeve remains free. In this way, a maximum number of sleeves can be transported in the transport.

Bei dem Rüsten einer Druckmaschine wird in einer vorteilhaften Weiterbildung des Verfahrens zunächst eine Hülse der Druckmaschine entnommen und der freien Position in den Transportmitteln zugeführt. Anschließend wird eine neue Hülse aus den Transportmitteln entnommen und dem zuvor frei gewordenen Dorn zugeführt. Dieser Vorgang wird wiederholt, bis alle zu wechselnden Hülsen der Druckmaschine zu- bzw. aus der Druckmaschine abgeführt worden sind. Damit werden unnötig von den Mitteln zum Transfer zurückzulegende Wege vermieden werden, die entstünden, wenn beispielsweise zunächst alle Hülsen aus der Druckmaschine entfernt und dann neue Hülsen der Druckmaschine zugeführt würden.When setting up a printing press, a sleeve of the printing press is first removed in an advantageous development of the method and fed to the free position in the transport. Subsequently, a new sleeve is removed from the transport and fed to the previously released mandrel. This process is repeated until all the sleeves of the printing machine to be changed have been removed from or removed from the printing press. This unnecessarily be avoided by the means for transfer paths that would arise if, for example, first removed all sleeves from the printing press and then new sleeves of the printing press would be supplied.

Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.
Die einzelnen Figuren zeigen:

Fig. 1
ein System zum Wechseln von Hülsen
Fig. 2
Ansicht II - II gemäß Fig. 1
Further embodiments of the invention will become apparent from the description and the claims.
The individual figures show:
Fig. 1
a system for changing sleeves
Fig. 2
View II - II according to Fig. 1

Fig. 1 zeigt eine Druckmaschine 1, welche Seitengestelle 2 und 3 aufweist. Die Farbübertragungswalzen 4 werden einwendig in nicht gezeigten Lagerböcken gelagert. Die Lagerböcke sind auf ebenfalls nicht gezeigten Schienen, welche an dem Seitengestell 2 angebracht sind, relativ zu den Seitengestellen verschiebbar. Auf diese Weise können die Farbübertragungswalzen 4 an den nicht gezeigten Gegendruckzylinder oder gegeneinander angestellt werden, um so einen Farbübertrag auf Bedruckstoff, welcher über den Gegendruckzylinder geführt wird, sicher zu stellen. Im Seitengestell 3 sind ebenfalls Lagerböcke auf Schienen verschieblich angebracht. Diese Lagerböcke weisen Lager auf, welche relativ zu den Lagerböcken bewegbar sind, so dass die Dorne 5 der Farbübertragungswalzen 4 wahlweise gelagert oder freigegeben werden können. Die Farbübertragungswalzen 4 können mit Hülsen 6 beaufschlagt werden, welche in Richtung z auf die Dorne 5 aufgeschoben werden können. Fig. 1 shows a printing press 1, which has side frames 2 and 3. The ink transfer rollers 4 are stored inside in bearing blocks, not shown. The bearing blocks are on rails, also not shown, which are mounted on the side frame 2, relative to the side frames displaced. In this way, the ink transfer rollers 4 can be employed on the counter-pressure cylinder, not shown, or against each other, so as to ensure a color transfer to printing material, which is guided over the impression cylinder. In side frame 3 bearing blocks are also slidably mounted on rails. These brackets have bearings which are movable relative to the bearing blocks, so that the mandrels 5 of the ink transfer rollers 4 can be stored or released either. The ink transfer rollers 4 can be acted upon with sleeves 6, which can be pushed in the direction z on the mandrels 5.

Zum Wechseln von Hülsen 6 werden also zunächst Lagerböcke in dem Seitengestell 3 von den betreffenden Farbübertragungswalzen 4 entfernt. Sodann kann die Hülse entgegen der Richtung z von dem Dorn 5 abgezogen und anschließend eine neue Hülse 6 auf den Dorn aufgeschoben werden. Im Fall des Druckwerks 7 ist die Situation dargestellt, in der die Hülse 6a von dem Dorn 5a abgezogen wurde.To change sleeves 6 so bearing blocks are first removed in the side frame 3 of the respective ink transfer rollers 4. Then, the sleeve can be withdrawn against the direction z of the mandrel 5 and then a new sleeve 6 are pushed onto the mandrel. In the case of the printing unit 7, the situation is shown in which the sleeve 6a has been removed from the mandrel 5a.

Zur Anlieferung bzw. zum Abtransport von Hülsen 6 steht eine Transportvorrichtung 8 zur Verfügung, welche relativ zu der Druckmaschine 1 bewegt werden kann. Diese Transportvorrichtung 8 kann als Palette ausgestaltet sein. In dem gezeigten Beispiel beinhaltet die Transportvorrichtung 8 eine neue Hülse 6, die dem frei gewordenen Dorn 5a des Druckwerks 7 zuzuführen ist. Um jedoch die gerade entnommene Hülse 6a in der Transportvorrichtung 8 unterbringen zu können, weist diese eine freie Position auf, die als senkrecht aufragender Haltedorn 9 ausgestaltet ist.For the delivery or removal of sleeves 6 is a transport device 8 is available, which can be moved relative to the printing machine 1. This transport device 8 can be configured as a pallet. In the example shown, the transport device 8 includes a new sleeve 6, which is to be supplied to the vacant mandrel 5a of the printing unit 7. However, in order to accommodate the just removed sleeve 6a in the transport device 8, this has a free position, which is designed as a vertically rising retaining pin 9.

Für den Transfer der Hülsen 6 und 6a zwischen Druckmaschine 1 und Transportvorrichtung 8 ist eine Transfervorrichtung 10 vorgesehen. Zum Tragen der Hülsen 6, 6a ist ein Trageelement 11 vorgesehen, welches dornförmig ausgebildet ist und beispielsweise zu einem Drittel in das Innere der Hülse 6a hineinragt.For the transfer of the sleeves 6 and 6a between printing machine 1 and transport device 8 is a Transfer device 10 is provided. To support the sleeves 6, 6a, a support member 11 is provided, which is formed like a mandrel and protrudes, for example, to a third into the interior of the sleeve 6a.

Die Transfervorrichtung 10 ist, wie in den Figuren 1 und 2 zu erkennen ist, an Schienen 13, 14 aufgehängt. Diese Aufhängung ermöglicht eine Verschiebung der Transfervorrichtung 10 entlang einer horizontalen Ebene, welche durch die Richtungspfeile x und z aufgespannt wird. Dazu dienen nicht gezeigte Antriebsmotoren. Die Transfervorrichtung weist zudem zwei Drehgelenke 15 und 16 auf, deren Drehachsen parallel zum Richtungspfeil x verlaufen. Die Drehgelenke 15, 16 erlauben eine Höhenverstellung der Hülsen 6, 6a in Richtung y. Jedoch können die Hülsen 6, 6a auch gekippt werden, so dass diese 6, 6a von einer vertikalen Position in eine horizontale Position überführt werden können. Die Drehgelenke werden von Antriebsmotoren, beispielsweise Elektromotoren, angetrieben.The transfer device 10 is, as in the FIGS. 1 and 2 can be seen suspended from rails 13, 14. This suspension allows a displacement of the transfer device 10 along a horizontal plane, which is spanned by the directional arrows x and z. Serve not shown drive motors. The transfer device also has two hinges 15 and 16 whose axes of rotation extend parallel to the directional arrow x. The hinges 15, 16 allow a height adjustment of the sleeves 6, 6a in the direction y. However, the sleeves 6, 6a can also be tilted so that these 6, 6a can be transferred from a vertical position to a horizontal position. The hinges are driven by drive motors, such as electric motors.

Aufgrund der beschriebenen Bewegungsmöglichkeiten der Transfervorrichtung 10 ist es nun möglich, eine Hülse 6, 6a so vor einen Dorn 5, 5a zu bringen, dass die Hauptträgheitsachse der Hülse 6, 6a mit der Achse dieses Dorns 5, 5a fluchtet. Aufgrund des Spiels der Drehgelenke 15, 16, aber auch aufgrund einer leichten Nickbewegung der Dorne 5 bei Freilegen des im Bereich des Seitengestells 3 liegenden Enden, kann es in der Praxis vorkommen, dass die genannten Achsen nicht fluchten, sondern in Richtung z auseinander laufen. Um diesem Effekt entgegen zu wirken, weist die Transfervorrichtung 10 ein Justagedrehgelenk 18 auf, dessen Drehachse ebenfalls in Richtung x verläuft. Mit nicht gezeigten Sensoren kann festgestellt werden, ob die Achsen fluchten. Ist die Justage der Achsen erfolgt und verlaufen die Achsen koaxial, kann die Transfervorrichtung 10 insgesamt in Richtung z verschoben werden, bis das Trageelement 11 den Dorn 5, 5a berührt. Ist dies der Fall, ist die Hülse 6, 6a schon zu einem Großteil auf den Dorn 5, 5a aufgeschoben. Um die Hülse 6, 6a vollständig auf den Dorn aufschieben zu können, ist der Schieber 12 relativ zur Transfervorrichtung 10 in Richtung z verschiebbar. Der Schieber 12 wirkt dabei auf die dem unteren Tragarm 17 zugewandten Stirnseite des Hülse 6, 6a.Due to the described possibilities of movement of the transfer device 10, it is now possible to bring a sleeve 6, 6a in front of a mandrel 5, 5a such that the main axis of inertia of the sleeve 6, 6a is aligned with the axis of this mandrel 5, 5a. Due to the play of the hinges 15, 16, but also due to a slight pitching movement of the mandrels 5 when exposing lying in the region of the side frame 3 ends, it may happen in practice that the axes do not align, but diverge in the direction z. To counteract this effect, the transfer device 10 has a Justagerehgelenk 18 whose axis of rotation also extends in the direction x. With not shown sensors can be determined whether the axes are aligned. If the adjustment of the axes has taken place and the axes run coaxially, the transfer device 10 can be displaced in total in the direction z until the carrying element 11 contacts the mandrel 5, 5a. If this is the case, the sleeve 6, 6a is already pushed to a large extent on the mandrel 5, 5a. In order to be able to push the sleeve 6, 6a completely onto the mandrel, the slider 12 is displaceable in the direction z relative to the transfer device 10. The slider 12 acts on the lower arm 17 facing the front side of the sleeve 6, 6a.

Häufig weisen Dorne 5, 5a von Farbübertragungswalzen 4 kleine Stifte auf. Die Hülsen 6, 6a weisen dann komplementäre Nuten auf, so dass, wenn die Hülse vollständig auf den Dorn aufgeschoben ist, die Nut den Stift umfasst. Nach dem Aufschieben der Hülse 6, 6a ist diese somit automatisch in Bezug auf ihre Längsachse, aber auch in Umfangsrichtung relativ zum Dorn justiert. Damit die Nut den Stift umfassen kann, weist die Transfervorrichtung ein weiteres Drehgelenk 19 auf, dessen Drehachse konzentrisch mit der Hülsenachse verläuft, so dass eine Rotation der Hülse 6, 6a relativ zum Dorn 5, 5a vor oder während des Aufschiebevorganges möglich ist, so dass Stift und Nut miteinander in Eingriff bringbar sind.Often mandrels 5, 5a of ink transfer rollers 4 have small pins. The sleeves 6, 6a then have complementary grooves, so that when the sleeve is fully pushed onto the mandrel, the groove comprises the pin. After sliding the sleeve 6, 6a, this is thus automatically adjusted relative to the longitudinal axis, but also in the circumferential direction relative to the mandrel. In order for the groove to comprise the pin, the transfer device has a further rotary joint 19 whose axis of rotation runs concentrically with the sleeve axis, so that a rotation of the sleeve 6, 6a relative to the mandrel 5, 5a is possible before or during the pushing-on process, so that Pin and groove are engageable with each other.

Soll eine Hülse 6, 6a von einem Dorn 5, 5a abgeschoben werden, so werden die Achsen des betreffenden Dorns 5, 5a und des Trageelements 11 fluchtend justiert, so dass die Achse der Hülse ebenfalls mit der Achse des Dorns fluchtet, wenn die Hülse auf das Trageelement 11 aufgeschoben ist, aber noch zumindest teilweise in Kontakt mit dem Dorn steht. Nach der fluchtenden Ausrichtung schiebt eine Schiebevorrichtung 20 die Hülse von dem Dorn 5, 5a ab. Eine solche Schiebevorrichtung 20 kann an jedem Dorn vorgesehen sein, ist aber der Einfachheit halber nur für das Druckwerk 7 gezeigt. Nach dem Verschiebevorgang umfasst die Hülse 6, 6a vollständig das Trageelement 11. Das Trageelement 11 ist vorteilhafterweise in seinem Außendurchmesser veränderbar, so dass eine reibschlüssige Verbindung zwischen Trageelement 11 und der Hülse 6, 6a hergestellt werden kann. Anschließend kann die Hülse 6, 6a vollständig mit der Transfervorrichtung von dem Dorn 5, 5a abgezogen werden.If a sleeve 6, 6a to be deported from a mandrel 5, 5a, the axes of the respective mandrel 5, 5a and the support member 11 are aligned, so that the axis of the sleeve is also aligned with the axis of the mandrel, when the sleeve on the support member 11 is pushed, but is still at least partially in contact with the mandrel. After alignment, a pusher 20 pushes the sleeve away from the mandrel 5, 5a. Such a pusher 20 may be provided on each mandrel, but is shown for simplicity only for the printing unit 7. After the sliding operation, the sleeve 6, 6a completely comprises the support member 11. The support member 11 is advantageously variable in its outer diameter, so that a frictional connection between the support member 11 and the sleeve 6, 6a can be produced. Subsequently, the sleeve 6, 6a can be completely withdrawn with the transfer device from the mandrel 5, 5a.

In der Druckmaschine 1 können Hülsen 6, 6a mit verschiedenen Innendurchmessern zum Einsatz kommen. Dies ist insbesondere dann der Fall, wenn zunächst eine Adapterhülse auf den Dorn 5, 5a aufgeschoben wird und anschließend eine Hülse 6, 6a auf die Adapterhülse aufgeschoben wird. Damit alle Hülsen 6, 6a von innen her reibschlüssig mit dem Trageelement in Verbindung stehen können, sind Trageelemente 11, 11 a, 11 b mit verschiedenen Außendurchmessern vorgesehen. Für jeden in der Druckmaschine 1 verwendbaren Innendurchmesser der Hülsen 6, 6a kann ein Trageelement vorgesehen sein. Aufgrund der Bewegungsfreiheitsgrade der Transfervorrichtung 10 kann diese automatisch die Trageelemente 11, 11 a, 11 b wechseln. Zu diesem Zweck weist die Transfervorrichtung 10 eine Kupplung 21 auf, welche eine Druckluft- und/oder Stromverbindung zwischen Transfervorrichtung 10 und Trageelement herstellt oder unterbricht.In the printing machine 1, sleeves 6, 6a with different inner diameters can be used. This is especially the case when first an adapter sleeve is pushed onto the mandrel 5, 5a and then a sleeve 6, 6a is pushed onto the adapter sleeve. So that all sleeves 6, 6a can be frictionally engaged with the carrying element from the inside, carrying elements 11, 11a, 11b with different outside diameters are provided. For each usable in the printing machine 1 inner diameter of the sleeves 6, 6a, a support member may be provided. Due to the degrees of freedom of movement of the transfer device 10, this can automatically change the support elements 11, 11 a, 11 b. For this purpose, the transfer device 10 has a coupling 21, which establishes or interrupts a compressed air and / or electrical connection between the transfer device 10 and the support element.

Die Fig. 2 zeigt die Ansicht II-II gemäß Figur 1. Das Seitengestell 3 weist im Bereich der einzelnen Farbwerke Ausnehmungen 22 auf, durch welche die Farbübertragungswalzen 4 derart erreichbar sind, dass die Hülsen 6, 6a durch die Ausnehmungen 22 hindurch von den Dornen 5, 5a abgezogen werden können. Der Einfachheit halber wurde von jedem Farbwerk nur eine Farbübertragungswalze 4 dargestellt. Gewöhnlich sind beispielsweise an Flexodruckmaschinen je Farbwerk zwei Farbübertragungswalzen 4, nämlich eine Rasterwalze und eine Druckwalze, zu finden. Von der Transfervorrichtung 10 sind insbesondere die beiden Drehgelenke 15, 16 abgebildet. Die Schienen 14 dienen dazu, die Transfervorrichtung 10 parallel zur Vorderfront des Seitengestells 3 zu bewegen. Damit für die Transfervorrichtung 10 ein größtmöglicher Bewegungsraum vorhanden ist, ist das Seitengestell 3 frei von Vorbauten oder Erhebungen. Bezugszeichenliste 1 Druckmaschine 2 Seitengestell 3 Seitengestell 4 Farbübertragungswalze 5 , 5a Dorne 6 6a Hülsen 7 Druckwerk 8 Transportvorrichtung 9 Haltedorn 10 Transfervorrichtung 11 ,11a,b Trageelement 12 Schieber 13 Schienen 14 Schienen 15 Drehgelenk 16 Drehgelenk 17 Unterer Tragarm 18 Justagedrehgelenk 19 Drehgelenk 20 Schiebevorrichtung 21 Kupplung 22 Ausnehmung 23 24 The Fig. 2 shows the view II-II according to FIG. 1 , The side frame 3 has recesses 22 in the region of the individual inking units, through which the ink transfer rollers 4 can be reached in such a way that the sleeves 6, 6a can be pulled off the thorns 5, 5a through the recesses 22. For the sake of simplicity, only one ink transfer roller 4 of each inking unit has been illustrated. Usually, for example, two ink transfer rollers 4, namely an anilox roller and a pressure roller, can be found on flexographic printing machines per inking unit. Of the transfer device 10, in particular the two hinges 15, 16 are shown. The rails 14 serve to move the transfer device 10 parallel to the front of the side frame 3. In order for the transfer device 10 the greatest possible space for movement is present, the side frame 3 is free of stems or elevations. LIST OF REFERENCE NUMBERS 1 press 2 side frame 3 side frame 4 Ink transfer roller 5, 5a mandrels 6 6a sleeves 7 printing unit 8th transport device 9 holding mandrel 10 transfer device 11, 11a, b carrying member 12 pusher 13 rails 14 rails 15 swivel 16 swivel 17 Lower arm 18 Justagedrehgelenk 19 swivel 20 Pusher 21 clutch 22 recess 23 24

Claims (14)

  1. System for replacement of sleeves (6, 6a)
    - with a printing machine with arbors (5, 5a) of ink transfer rollers (4) onto which the sleeves can be slipped ,
    - with a storage device, in which the sleeves (6, 6a) (6, 6a), which are not used in the current ink transfer, can be stored,
    and/or
    - with transport devices (8, 9), with which several sleeves (6, 6a) (6, 6a) can be transported to the printing machine (1),
    - whereby devices for the transfer of sleeves (10-19, 21) are provided by means of which the sleeves (6, 6a) can be transported between the storage device and/or the transport means (8, 9) and the arbors (5, 5a) of the ink transfer rollers (4) in the at least one printing machine (1) and/or between the storage device and the transport means (8, 9),
    characterized in that
    the devices for the transfer of the sleeves (10-19, 21) and the printing machine comprise pushing devices (12, 20), by means of which the sleeves (6, 6a) can be shifted along their axes relatively to the means for the transfer to the sleeves (10-19, 21).
  2. System according to the preceding claim,
    characterized in that
    the devices for the transfer of the sleeves (10-19, 21) comprise devices for receiving the sleeves (11), from which the sleeves (6, 6a) are taken for the purpose of transport.
  3. System according to the preceding claim,
    characterized in that
    the devices for receiving the sleeves (11) project at least in part into the interior of the sleeves (6, 6a).
  4. System according to one of the preceding two claims,
    characterized in that
    it is provided with a computing and control unit which controls the driving devices (15-19) for driving the devices for the transfer of the sleeves (10-19, 21) in such a manner that the devices for receiving the sleeves (11) can be brought in positions in which a transfer of the sleeves (6, 6a) from the devices for receiving the sleeves (11) into the arbors of the ink transfer rollers, into the storage device or the inverse or vice versa can be carried out.
  5. System according to the preceding claim,
    characterized in that
    the positions of the arbors of the ink transfer rollers, in which a replacement of a sleeve (6, 6a) is to be done, and the respective target positions and the current positions of the sleeves (6, 6a) in the printing machine (1), in the transport devices and/or in the storage device are known to the computing and control unit.
  6. System according to one of the preceding claims,
    characterized in that
    the devices for the transfer of the sleeves (10-19, 21) comprise devices for rotating and tilting (15, 16, 18, 19) the sleeves (6, 6a).
  7. System according to the preceding claim,
    characterized by
    sensors, with which the relative angular positions of a sleeve (6, 6a) to a device for receiving a sleeve (11) with respect to line of alignment with the axis of the ink transfer roller are determined.
  8. System according to the preceding claim,
    characterized in that
    based on the relative angular positions of the sleeve (6, 6a) on a device for receiving the sleeves (11) with respect to the line of alignment with the axis of the arbor of the ink transfer roller, as determined by the sensors, as well as the target values, the computing and control unit transmits signals to the devices for transfer of the sleeves (10-19, 21), until the device for receiving the sleeves (11) is so positioned that the axis of the arbor of the ink transfer roller is aligned with the axis of the sleeve (6, 6a), if the latter was received by the device for receiving the sleeves.
  9. System according to one of the preceding claims,
    characterized in that
    the devices for receiving the sleeves (11, 11 a, 11 b) can be coupled and uncoupled with the devices for transfer (10-19, 21).
  10. System according to the preceding claim,
    characterized in that
    the device for receiving sleeves (11) has an arbor-shaped embodiment and its external diameter can be varied.
  11. System according to one of the preceding claims,
    characterized in that
    the devices for the transport comprise a traversable carriage (8), which takes a defined position relative to the printing machine for the replacement of the sleeves (6, 6a), whereby the position of the carriage (8) can be made available to the computing and control unit.
  12. Method for replacement of printing sleeves with a system according to one of the preceding claims 4 to 11,
    characterized in that
    the computing and control unit works out an arrangement of the sleeves (6, 6a), which are to be replaced, in the transport devices, whereby one position for receiving at least one more sleeve (6, 6a) remains free in the transport devices.
  13. Method according to the preceding claim,
    characterized in that
    the devices for transfer take a sleeve from an arbor of an ink transfer roller, which sleeve is then delivered to the free position, and that thereafter the device for the transfer takes another sleeve from the transport devices, which is then delivered to the free arbor.
  14. System according to the preceding claim,
    characterized in that
    the free position in the transport devices, to which a sleeve, taken from an arbor of an ink transfer roller, is delivered, and the position, from which the next sleeve (6, 6a) is taken, are directly adjacent.
EP05764073A 2004-07-31 2005-07-25 Sleeve exchange system Active EP1776231B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004037253A DE102004037253B4 (en) 2004-07-31 2004-07-31 Sleevewechselsystem
PCT/EP2005/008139 WO2006013046A1 (en) 2004-07-31 2005-07-25 Sleeve exchange system

Publications (3)

Publication Number Publication Date
EP1776231A1 EP1776231A1 (en) 2007-04-25
EP1776231B1 EP1776231B1 (en) 2008-03-12
EP1776231B2 true EP1776231B2 (en) 2011-09-07

Family

ID=35385321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05764073A Active EP1776231B2 (en) 2004-07-31 2005-07-25 Sleeve exchange system

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Country Link
US (5) US20090028613A1 (en)
EP (1) EP1776231B2 (en)
AT (1) ATE388822T1 (en)
DE (2) DE102004037253B4 (en)
ES (1) ES2302216T3 (en)
RU (1) RU2376144C2 (en)
WO (1) WO2006013046A1 (en)

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US20090028613A1 (en) 2009-01-29
RU2007107366A (en) 2008-09-27
RU2376144C2 (en) 2009-12-20
DE102004037253A1 (en) 2006-09-14
US20180086047A1 (en) 2018-03-29
US20160009076A9 (en) 2016-01-14
US11331903B2 (en) 2022-05-17
US20110283907A1 (en) 2011-11-24
DE102004037253B4 (en) 2013-09-05
EP1776231A1 (en) 2007-04-25
US10857780B2 (en) 2020-12-08
ATE388822T1 (en) 2008-03-15
WO2006013046A1 (en) 2006-02-09
US20140116278A1 (en) 2014-05-01
US20180086046A1 (en) 2018-03-29
DE502005003228D1 (en) 2008-04-24
EP1776231B1 (en) 2008-03-12
US10737482B2 (en) 2020-08-11
ES2302216T3 (en) 2008-07-01

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