EP1609544A1 - Apparatus and method for preparing plates to be located on a support device - Google Patents

Abstract

The preparation machine (122) may bend the edges of a thin printing plate and the plate forming region (120) has two shaping beams (125) with radiused edges (126,127). The plate holding region (150) includes a pressing beam (152) and side bearing blocks (158). The plate forming region includes a stepping motor (146) and carriages (180-184).

Description

Technical area

The invention relates to an apparatus and a method for the preparation of Plates for mounting on a support. The invention is especially suitable for preparing printing plates for mounting on Printing rollers of printing machines. More generally, the invention is usable for plating flat or cylindrical bodies of various kinds.

Background of the invention:

In printing machines, as for example in newspaper printing, but also for the Most other printed materials are used to be printed Texts or graphics - in technical language the printed image is called "Image" - applied to printing plates. For printing, the printing plates on Pressure rollers attached. For multicolor printing, there is one for each color own printing plate, which is applied to a pressure roller accordingly. For An exact matching pressure, it is important, the pressure plate exactly on the Position pressure roller.

In Fig. 1, a first pressure roller 10 is schematically sketched. The pressure roller 10 has for exact positioning of a pressure plate 12 shown in Fig. 4 at its circumference one or more axially extending grooves 14, 15. In Fig. 2 is a second, differently sized pressure roller 16 with clamped pressure plate 12 viewed in the axial direction plan view shown. For each pressure plate 10, 16 is the circumferential distance U of the grooves 14, 15, the radial orientation of the grooves 14, 15 (angle α) and the shape of the edge 17 between the groove wall 14a and the peripheral surface 18 characteristic.

Fig. 3 shows an example of an embodiment of a groove 14 with such edge 17 in an enlarged schematic representation. The edge 17 is usually rounded with a certain radius r _i , which is also characteristic of a particular pressure roller i. A feather key 20 is provided in the groove 14 for positioning the pressure plate 12 in the axial direction. A positioning in the circumferential direction via the two grooves 14, 15th

For an exact pressure, the pressure plate 12 should be exactly on the grooves 14, 15 be tuned, as shown by way of example in Fig. 4. There are for this Machines with which provided with Image 22 printing plates 12 for Arrange to be prepared on the pressure roller. When applying the images 22 are equal to position marks 24 applied, in which the Machine can orient. She optically scans the position marks 24, positions the pressure plate 12 accordingly and then bends opposite Edge regions 26 and 27 of the pressure plates 12, which are usually formed of sheet metal adapted to the groove shape and edge shape of the groove 14, 15 and the edge 17 to. Also, a recess (not shown) for detecting the key 20 brought in. For this, greatest accuracy is advantageous. An example of such Machine with position device is described in DE 198 06 579 A1, on which is expressly referred to for further details.

These machines in particular bend the opposite edge regions 26, 27 from the original planar extension by an angle β which is adapted to the angle α. In the examples of angle definitions shown in FIGS. 2, 3 and 4, β = 90 ° + α. The shape of the bending edge 28 of the pressure plate 12 is exactly adapted to the edge 17 so that it rests exactly on it. Therefore, this bending edge 28 is rounded with the corresponding radius r ₁ as the edge 17. The distance A ₁ and A _{2 of} the bending edges is determined by the position mark 24, so that the sum A ₁ + A ₂ = U.

Each printing press manufacturer uses pressure rollers with corresponding characteristic features U, 17, 14, 15, r _i . The manufacturers usually also offer suitable machines for preparing the printing plates 12 for use in their printing press as accessories. Now there are more and more printing companies with several printing presses from different manufacturers. For each one is currently a separate printing plate straightening machine necessary. There is therefore the need to be able to prepare the printing plates 12 for different printing rollers 12, 16 with a single machine.

The problem is above with reference to the example of pressure rollers and Printing plates have been described. Instead of rollers, the Printing machine also have another carrier, for example, a flat Support plate on which a pressure plate clamped according to their edges can be. Again, there is a need to adapt with a machine to be able to provide for different carriers.

Generally, this need exists everywhere, where several, different Carrier with a plate-like covering are to prove so exactly that the Covering edges of the carrier surrounds.

Presentation of the invention

The object of the invention is to provide a device and a method for Preparation of plate-shaped coverings, in particular plate-shaped graphic carrier media, to create more universal than previously used are.

This object is achieved by a device having the features of appended claim 1 and a method with the steps of the attached Claim 16.

Advantageous embodiments of the invention are the subject of Dependent claims.

The invention accordingly provides a device for preparing plates for an arrangement on a carrier device, such as on a roller, in particular pressure roller, or on a printing table. The preparation is done by bending an edge portion of the plate to bend with the Edge region to include and / or to an edge of the support means engage behind. The device according to the invention has a retaining device for holding the plate, a forming device, which is a - mostly flat - Support surface for laying the festzuhaltenden by the retaining device Plate and one of the support surface has adjacent edge shape, and a Bending device with a bending element for bending the edge region the plate around the edge shape. With the retaining device is the plate held and bent with the bending device, which thereby resulting form is determined by the molding device. To customize various carrying means is the forming device with a plurality of Edge forms provided, which optionally to reshape the edge portion can be used. This allows the plate to differently shaped edges of the Carrier device can be adjusted. Different edge shapes on the Carrier means are for example cylindrical rounded edges different radii of curvature. Also other bends with different curvature dimensions are conceivable. A very exact one Corresponding to the shape of the bending edge of the plate to the by the edge shape The shape of the device reproduced edge shape of the carrier device is then possible, although a movement curve of the bending element of Bending device relative to the molding device to adapt to the currently selected Edge shape is changeable. This allows material bulges or avoid stretching, for example, with a pressure on in the worst case for printing plates applied to corresponding carriers Breaking the edge and / or moving the pressure plate could result. The thus increased by the invention reliability is especially for the always under time pressure printing daily newspapers or the like Periodicals of great advantage.

To adapt to at least two different support means, such as the two pressure rollers 10, 16, with edges r ₁ and r ₂ rounded with different radii 17, the molding device of a preferred embodiment has at least two edge shapes with different radii of curvature seen in cross-section. In this case, the edge shapes may be formed in adaptation to the usual edges 17 (circular) cylinder jacket section section.

In order to be able to adapt the movement curve of the bending element with a movement in both an x-direction and in a y-direction to the shape of edges to be emulated different edges 17, it is preferred that the bending means for adjusting the movement curve of the bending element relative to the edge shape in a inclined plane is slidable, which is inclined to the flat bearing surface with an acute angle. In circular rounded edges 17 with different radii r ₁ and r ₂ , the adjustment in the x-direction and in the y-direction in a very advantageous manner simply by the fact that the displacement plane is inclined to the support surface by approximately 45 degrees. As a result, the position of the central axis about which a pivoting movement of the bending element takes place can be changed in the x-direction and y-direction by the same amount.

The bending device has as a bending element preferably a bending beam, the Edge region of the retaining device on the flat support can capture and bend captured plate. The bending beam is further preferably stored at its end so that it is around each selected edge shape is pivotable around with adjustable distance. at constant distance then results in a circular pivoting movement to adapt to a circular rounded edge shape. Other Edge shapes, such as elliptical or paraboloidal edge shapes, can be defined by a movement - e.g. via a cam, a computerized control or the like - variable distance achieve. In the simplest way, the distance and / or the Pivot axis of the pivoting movement of the bending element by a Adjust the displacement of the bending device.

The retaining device preferably has a pressing element, in particular a press bar, on. The pressing element is more preferably relative to the level bearing surface movable. So you can then the plate to hold on Press against the flat support surface. By movement of the pressing element in the other way, the plate is then solvable again. Basically, the Retaining device formed independently of the bending device and be movable. The construction becomes simpler when the retaining device is displaceable together with the bending device.

To several edge areas of the plate, in particular the itself opposite edge portions 26 and 27, in a processing step to be able to bend, it is preferred that several Umbiegeeinrichtungen are provided. In a still further preferred embodiment, each of these Umbiegeeinrichtungen the above-explained retaining device, the above explained changeable forming device and the above-described adaptable thereto Bending device on.

To different distances between opposite edges of the Support means, for example, different circumferential distances U of To be able to handle grooves 14, 15 in the two pressure rollers 10, 16, is more preferably that the Umbiegeinrichtungen movable relative to each other are. For example, it is provided that two Umbiegeinheiten for bending are provided opposite edge portions, for the purpose of setting a distance of the bends of the edge area towards each other and moving away from each other.

Preferably, there is further a positioning device for aligning the plate the detention and bending provided, in particular the way they are in the DE 198 06 579 A1 is shown and described.

In order to adapt the device to different edge shapes of the It is further preferred for the carrier devices to be facilitated Forming device has a selection element with the plurality of edge shapes, the movable to select the desired edge shape, in particular is rotatable. For example, the former may be a magazine, e.g. a kind of Revolver magazine with multiple edge shapes, by appropriate Movement, e.g. Turn the magazine to the appropriate place in the mold can be brought and locked there. This place becomes the facilitated adjustment of the movement curve of the bending element and the be formed edge shape preferably chosen such that the center each selected edge shape, around which a bend of the Edge region takes place, each in a to a displacement plane of Parallel bending device, relative to the (flat) support surface inclined Level lies. A displacement of the bending device is then always parallel to the plane in which the centers of the edge shapes are located. By the Displacement can be such a center axis or focal axis of the Movement curve and a center axis or focal axis of the Slightly bring edge shape into concentric position.

The edge shapes are according to the previously explained embodiment on a total rotatable form bar magazine provided through the entire Rotation, respectively, the edge shape is completely replaced. The adaptation the bending device and the retaining device to the selected Edge shape is then z. B. by moving together relative to the Form beam magazine along an inclined plane. Such a form magazine is but consuming and correspondingly expensive. It can be so while the Example to create four different radii as edge shapes. individual Adjustments to other special forms in addition to another Radius of the edge shape, however, are very complex.

For example, in the preferred field of use, the erection of Printing plates for mounting on printing rolls of printing machines, which Pressure rollers of different manufacturers in the clamping slots, in which bent edge areas are to be used, below the Roll surface formed edge, at the edge shape, the edge regions the plates are to be adapted, various projections on which the bent edge region of the plates with appropriate embossing can attack. Due to the projections formed in the slots of the Gap distance of the slot reduced. Continue with the imprints at these projections attacking plates the plate tension with which they the pressure roller, increase. As a result, the plate sits firmly on the Platen. You can increase the speed of the pressure roller, without the As a result, higher centrifugal force negatively affects the situation the plate has. Overall, this allows the effectiveness of the printing press increase.

It is according to the desired, the inventive device such form so that the edge areas of the plates in simple and relative cost effective way on the one hand at their Umbiegezonen to different Edge shapes of carrier devices can be adapted and on the other hand optionally additionally adapted to the carrier device Embossments can be provided.

For this purpose, in a particularly preferred embodiment of the invention provided that the molding device comprises a first mold element with a first Edge shape and a second form element, in particular with a second Edge shape, wherein the second mold element as a removable Attachment element is formed for the first mold element.

The second mold element is preferably relative to the first mold element movable. The training and the mobility of the second formula element is preferably such that it is for use of the first edge shape in Forming the edge portion of the first mold element is removable and for using the second edge shape when reshaping the edge portion before the first mold element for covering the one with the first edge shape provided front side of the first element element is movable.

This advantageous embodiment of the invention has several advantages. you the first mold element does not have to move away for replacement, it can Place and thus remain adjusted. The possibility of adjustment errors is reduced. You can the first form element with embossing protrusions provided when not in use simply by the second mold element can be covered. You could also do the second form element like that train that there is no other edge shape, but only the formative Having projections that brought in use before the first mold element be that its edge shape can be used, for example, is the second form element is shorter and only covers a lower one Part of the first formula element. This possibility could be synonymous with the Form bar magazine of the previously explained embodiment additionally provide.

An advantage of the further advantageous embodiment with attachment element is that you can easily exchange only one or the other form element in order to adapt the plates either to two very specific carrier devices.
It has by this advantageous embodiment several edge shapes and several other shaping elements available, so that in a simple way either plates with embossing and plates without embossing are editable.

Compared to the first embodiment, the possibility of a second Form element to provide as an attachment piece for a first mold element, created in an advantageous manner in that the retaining device and the Bending device by means of a first adjusting relative to the Forming device in an at least one directional component perpendicular to extend the edge shapes extending first direction (for example x direction) are linearly movable to the by Vorsetzen or taking away of the second formula element resulting offset of the edge shapes relative to Retaining device and to compensate for bending device. The first Adjustment means, like all adjustment means of the device, motor be driven so that they are exactly by an electronic programmable logic controller is controllable, as is not the case here the field of machine tools in question (for example, CNC machines, Milling machines, etc.) is well known. For example, one or more Stepper motors per adjustment be provided.

It is further preferred that the retaining device and the bending device by means of a second movable independently of the first adjusting device Adjustment device relative to the molding device in at least one Direction component perpendicular to the extension of the first and the second Edge shape and perpendicular to the first direction extending second Direction (for example, y-direction) are linearly movable to a reference point the trajectory of a bending element of the bending device to each to adjust the selected edge shape.

By the first and the separately formed second adjustment is a separation of the possibility of movement in the first and the second Direction created. The first direction is preferred in the intended use parallel to the plate extending, preferably horizontally extending x-direction. The second direction is then preferred vertical direction, defined here as y-direction. As z-direction here is the Extension of the edge forms, around which the bend takes place, defined. The Designations x-, y-, and z-directions denote the directions of a Cartesian coordinate system.

If it is further provided that the retaining means, the bending device and the former together by means of a third adjuster parallel to the first direction relative to the plate are linearly movable, can be in simple way, the resulting by setting the second element element Offset the edge shapes relative to the plate. Besides, you can with this third adjustment advantageously a default of the entire bending system to reach the position of the edge to be bent to determine at the plate.

If a back of the second element of the form so on the front of the first formula is adapted to the front of the first Formula elements can be applied, the shape elements can be very closely related bring and thus get space in the x-direction, which is responsible for the relative movement of Form elements can be exploited. In addition, as close as possible Adjacent the form elements adjustment paths in the x direction when switching saved between the two form elements. For example, that could first mold element be provided with embossing projections. The backside of the second formula element then has corresponding recesses for Recording of the projections. The thus taking place mutual intervention of Form elements can also be used to adjust the movable mold element contribute. For this purpose, the recesses are preferably self-centering, for Example with tapered walls, formed.

The possibility of movement of the second mold element can be characterized simply achieve that the molding device for a pivoting mechanism for Pivoting the second feature of the first form element and for pivoting back the second feature before the first feature Has. The pivot mechanism can be in a preferred embodiment operated electronically controlled very accurately.

Different edge shapes are characterized in a preferred embodiment formed in that the mold elements in each case by at least one elongated Molded beams are formed whose cross section with a transverse to the longitudinal direction of the mold bar projecting projection is provided at the top of a an acute angle enclosing edge provided with the for forming respective edge shape, in particular with a desired radius, is trained. The back of the second form beam is then preferably adapted for receiving the projection of the first mold bar trained return, so that the bearing surface through both tight fitting form beams can be formed without a large gap. The Form bars preferably extend in the z-direction and the projection is preferably in the x direction. In the y direction, the shape bars are to form the support surface for holding the plate by the retaining means preferably formed with a flat surface.

A stamping structure is preferably formed by the front side at least one of the form elements a projecting edge with the Forming desired edge shape and offset one or more Projections for producing an embossment on the bent edge region the plate has.

The bending device preferably has a bending element mounted pivotably about the respective edge shape on a pivot bearing. The pivot bearing of the bending device is further preferably movable relative to the mold in the y-direction in order to bring the pivot axis of the pivoting movement in the center of the selected edge shape, ie in particular in the center of a circular profile shape with a selected radius in profile.
A retaining element - for example pressing beam - of the retaining device is more preferably relative to a bending element - for example bending beam - the bending device in the y-direction movable. Thus, when pressing the retaining element (with the interposition of the plate) to the selected form element independent of the retaining element different trajectory of the bending element can be achieved. For example, the pivot axis of the pivoting movement of the bending element can be adjusted relative to the retaining element to bring it into the center of the edge shape cross-section.

Now to the radius of the attacking on the plate system part of the Bendelemerits adapt to different radii of edge shapes can, it is further preferred that the pivotable on the pivot bearing mounted bending element in its longitudinal direction in one of the Swivel bearing mounted holding part and a relative thereto radially Pivoting movement movably formed part of the plant for application to the is to be folded edge region of the plate is divided.

• Auswahl einer an die Kante der Trägereinrichtung angepassten Kantenform,
• Einstellen einer an die Kantenform angepassten Bewegungskurve eines Biegeelements einer Biegeeinrichtung,
• Festhalten der Platte und
• Umbiegen des Kantenbereichs der Platte mittels des sich entlang der Bewegungskurve um die ausgewählte Kantenform herum bewegenden Biegeelements.

The invention further provides, in particular by means of a device according to the invention optionally manually or preferably (eg by computer assistance) automatically executable method for preparing a plate for the purpose of applying the same to a carrier device. In the method, an edge region of the plate is bent such that the edge region of the plate can surround and / or engage behind an edge of the carrier device as accurately as possible. The method according to the invention has the following steps:

• Selection of an edge shape adapted to the edge of the carrier device,
• Adjusting a movement curve, adapted to the edge shape, of a bending element of a bending device,
• Holding the plate and
• Bending the edge region of the plate by means of the bending element moving along the movement curve around the selected edge shape.

The edge shape is preferably selected from a group of different ones Radius of curvature circular rounded edge shapes selected. When Movement curve is more preferably a circular pivoting movement with one to the thickness of the plate relative to the radius of curvature of selected edge shape larger swing radius concentric to the Edge shape adjusted.

The adjustment of the swivel radius and / or the swivel axis for adjustment to the selected edge shape is preferably carried out by shifting the Bending device in a tilted obliquely to the plate plane Displacement plane.

For easier adaptation of the movement of the bending element to the selected one Edge shape is more preferably a center, in particular a central axis or a focal point axis, the edge shape, around the edge region the plate is bent, arranged in a plane parallel to the oblique plane of displacement, along which the bending device for Adjustment of the movement curve is displaceable.

Preferred uses of the device according to the invention or the The method according to the invention is the graphic arts industry and printing companies as well as reproduction machines, where the invention in particular for Preparing printing plates for different printing rollers is usable. With a single device according to the invention, for example, a Printing operation all printing plates for two or more different ones Prepare printing presses, for example from different manufacturers.

Brief description of the drawings:

Fig. 1

eine perspektivische Ansicht einer ersten Druckwalze als Beispiel für eine Trägereinrichtung, an welche Platten, wie beispielsweise Druckplatten, anzupassen sind;

Fig. 2

eine Draufsicht in axialer Richtung auf eine zweite Druckwalze zur Erläuterung der unterschiedlichen Parameter von Druckwalzen, die bei der Anpassung zu berücksichtigen sind;

Fig. 3

eine perspektivische Detailansicht eines Endbereiches einer Nut bei einer der beiden Druckwalzen von Fig. 1 oder Fig. 2 zur weiteren Verdeutlichung der unterschiedlichen Druckwalzenparameter;

Fig. 4

eine perspektivische Ansicht eines Teils einer Druckplatte, die bereits zur Anbringung an einer Druckwalze vorbereitet ist;

Fig. 5

eine schematische Ansicht einer ersten Ausführungsform einer Vorrichtung zum Vorbereiten einer Druckplatte, mittels der die Druckplatte in die in Fig. 4 gezeigte Form bringbar ist, wobei nur hier interessierende Teile der Vorrichtung gezeigt sind und weitere, grundsätzlich bekannte Teile zur besseren Übersichtlichkeit weggelassen worden sind;

Fig. 6

eine schematische Querschnittsdarstellung einer zweiten Ausführungsform der Vorrichtung mit einem Magazin unterschiedlicher Kantenformen;

Fig. 7

eine schematischen Ansicht vergleichbar den Fig. 6 und 7 zur Verdeutlichung einer Anpassung einer Biegeeinrichtung der Vorrichtung an die jeweils ausgewählte Kantenform;

Fig. 8

eine Querschnittsansicht durch eine Biegeeinrichtung und eine Festhalteeinrichtung einer Ausführungsform der Vorrichtung mit einer beispielhaften Mechanik zur Anpassung der Biegeeinrichtung und der Festhalteeinrichtung an die jeweils ausgewählte Kantenform;

Fig. 9

eine Seitenansicht auf eine bei einer Vorrichtung in einer dritten Ausführungsform vorhandene Umbiegeeinrichtung zum Anpassen des Kantenbereichs der Druckplatte von Fig. 4 an unterschiedliche Kanten unterschiedlicher Druckwalzen, wobei die Umbiegeeinrichtung mit einer Festhalteeinrichtung, einer veränderbaren Formeinrichtung und einer anpassbaren Biegeeinrichtung versehen ist;

Fig. 10

eine stark schematisierte und zu Darstellungszwecken übertrieben dargestellte Querschnittsansicht durch einen Teil einer Trägereinrichtung für eine Platte, nämlich einer Druckwalze mit einer Druckplatte;

Fig. 11

eine Seitenansicht auf eine bei einer vierten Ausführungsform einer Vorrichtung zur Vorbereitung von Platten für die Anordnung auf der Trägereinrichtung gemäß Fig. 10 verwendete Formeinrichtung;

Fig. 12

eine Seitenansicht auf eine bei der vierten Ausführungsform der Vorrichtung zur Vorbereitung von Platten verwendete Festhalteeinrichtung;

Fig. 13

eine Seitenansicht einer bei der vierten Ausführung der Vorrichtung zum Vorbereiten der Platte verwendeten ersten Einstelleinrichtung;

Fig. 14

eine Seitenansicht auf eine bei der vierten Ausführungsform der Vorrichtung verwendete dritte Einstelleinrichtung, die gemeinsam mit der ersten Einstelleinrichtung dargestellt ist;

Fig. 15

eine Seitenansicht auf eine bei der vierten Ausführungsform der Vorrichtung zum Vorbereiten von Platten verwendete Biegeeinrichtung, die die Formeinrichtung, die erste und die dritte sowie eine zweite Einstelleinrichtung, die Festhalteeinrichtung und eine Biegeeinrichtung aufweist;

Fig. 16

eine Seitenansicht der Festhalteeinrichtung und der Biegeeinrichtung der vierten Ausführungsform ;

Fig. 17

eine Vorderansicht in X-Richtung auf ein in der Biegeeinrichtung von Fig. 16 verwendetes Biegeelement in Form eines Biegebalkens und

Fig. 18

eine Seitenansicht auf die Biegeeinrichtung und die Formeinrichtung der vierten Ausführungsform zur Verdeutlichung deren Funktion.

Embodiments of the invention are explained below with reference to the accompanying drawings. It shows:

Fig. 1

a perspective view of a first pressure roller as an example of a support means to which plates, such as printing plates to be adapted;

Fig. 2

a plan view in the axial direction of a second pressure roller for explaining the different parameters of pressure rollers to be considered in the adjustment;

Fig. 3

a perspective detailed view of an end portion of a groove in one of the two pressure rollers of Figure 1 or Figure 2 to further illustrate the different pressure roller parameters.

Fig. 4

a perspective view of a portion of a printing plate, which is already prepared for attachment to a pressure roller;

Fig. 5

a schematic view of a first embodiment of an apparatus for preparing a printing plate, by means of which the pressure plate can be brought into the form shown in Figure 4, wherein only parts of interest of the device are shown and further, basically known parts have been omitted for clarity;

Fig. 6

a schematic cross-sectional view of a second embodiment of the device with a magazine of different edge shapes;

Fig. 7

a schematic view similar to Figures 6 and 7 for illustrating an adaptation of a bending device of the device to the respective selected edge shape.

Fig. 8

a cross-sectional view through a bending device and a retaining means of an embodiment of the device with an exemplary mechanism for adapting the bending means and the retaining means to the respective selected edge shape;

Fig. 9

a side view of a present in a device in a third embodiment Umbiegeeinrichtung for adjusting the edge portion of the printing plate of Figure 4 at different edges of different pressure rollers, the Umbiegeeinrichtung is provided with a retaining means, a variable forming device and an adjustable bending device;

Fig. 10

a highly schematic and exaggerated for illustrative purposes cross-sectional view through a portion of a support means for a plate, namely a pressure roller with a pressure plate;

Fig. 11

a side view of a forming device used in a fourth embodiment of a device for preparing plates for the arrangement on the carrier device of FIG. 10;

Fig. 12

a side view of a holding device used in the fourth embodiment of the apparatus for preparing plates;

Fig. 13

a side view of a first adjusting used in the fourth embodiment of the apparatus for preparing the plate;

Fig. 14

a side view of a third adjusting device used in the fourth embodiment of the device, which is shown together with the first adjusting device;

Fig. 15

a side view of a bending device used in the fourth embodiment of the apparatus for preparing plates, comprising the forming device, the first and the third and a second adjusting means, the retaining means and a bending device;

Fig. 16

a side view of the retaining means and the bending device of the fourth embodiment;

Fig. 17

a front view in the X direction on a bending element used in the bending device of Fig. 16 in the form of a bending beam and

Fig. 18

a side view of the bending device and the molding device of the fourth embodiment to illustrate their function.

In Fig. 5 is a basic structure of a device 30 for preparing Plates for attachment to pressure rollers shown schematically. The device 30 has two conveyor belts 31 already supplied with Image 22 for delivery Pressure plates 12 in still flat form. By means of a plate positioning device in the form of a vacuum table 29, the pressure plate 12 is then based on the position marks 24 aligned, as described in more detail in DE 198 06 579 A1, to which reference is expressly made for further details, and exactly for puncturing the recess for the feather key 20 by means of a suitable Punching device (not shown) and for bending the Edge regions 26, 27 positioned. For bending, the device 30 has two essentially identical mirror-inverted formed Umbiegeeinrichtungen 32, 32 '. Each bending device 32, 32 'each has a forming device 34, a retaining device 36 and a bending device 38. In FIG. 5, FIG for the sake of clarity, only shown at the left there Umbiegeeinrichtung 32 all of these devices 34, 36, 38 indicated, wherein at the bending device 32 'shown on the right only the molding device 34 indicated is.

The shaping device 34 serves to bend the bending edge 28 to the edge 17 to give adapted shape at the suitable for the circumferential distance U point. To adapt the device 30 to different circumferential distances U are the two Umbiegeeinrichtungen 32 and 32 'relative to each other parallel to Disk plane, i. parallel to a through a bending table - indicated by its end portions 40 - provided flat bearing surface 42 slidably, as indicated by the arrows 44. This can not be done by a closer illustrated sliding guide, for example with rails and servomotors, as they are known in machine tools, lathes, etc., accomplished become.

The former 34, in the illustrated example, has the planar support surface 42 provided by the end portions 40 and a variable form member 46 that can provide various edge shapes 48, 48a. In the exemplary embodiments illustrated in FIG. 5 and further in FIG. 9, the shaped element 46 has a rotatable bar-shaped shaped piece 47 with a parallelogram-shaped cross section. At angled angles of this profile, two selectable edge shapes 48, 48a are formed. The edge shapes 48, 48a are in all examples shown here, each with different radii r ₁ , r ₂ , ... circular rounded cylindrical section shaped. The direction along these edges is referred to below as z-direction. The horizontal direction (corresponds to the direction of movement of the Umbiegeeinrichtungen according to the arrows 44) is defined as the x-direction. The remaining vertical direction is defined here as y-direction.

The retaining device 36 serves to hold the pressure plate 12 during the bending process. It has a pressing element, here in the form of a in z-direction extending press beam 50 which is movable in the x direction.

The bending device 38 serves to bend over the edge region 26, 27 via the respective selected edge shape 48 of the molding device 34 away. She points a bending element, here in the form of a z-direction extending Bending beam 52. The bending beam 52 is about a in z-direction extending pivot axis 54 circular pivot. To set the Radius of this pivotal movement is the bending beam 52 in the in Fig. 5th shown starting position together with the pressing bar 50 in the x direction movable. The bending device 38 has for this purpose a pivot bearing 56 for the bending beam 52 with adjustable swivel radius.

The pivot bearing 56 of the bending device 38 is further mounted on a bearing block 58 and there along an oblique plane of displacement 60 relative to this and the flat support surface 42 slidably. The inclined displacement plane 60 extends in the z-direction and in each case at an angle of 45 ° to the x and y directions and thus encloses an angle of 45 ° with the planar support surface 42 extending in the x and z directions. The angle depends on the respective basic shape of the edge 17. For circularly rounded edges 17 as in the embodiment, an angle of approximately 45 ° is optimal in the example shown. Thus, even with different radii of curvature r ₁ , r _{2 of} the selectable edge shapes 48, 48a, the pivot axis 54 with the central axis of the radius of curvature bring into line.

FIG. 6 shows a further exemplary embodiment with another shaping element 46 for the shaping device 34, namely in the form of a rotary magazine 62, which in each case has four beam sections FB1, FB2, FB3 and FB4 with four different bending radii r ₁ , r ₂ , r ₃ and r ₄ has. With dashed lines, the pivoting movement of the bending beam (BB) 52 around the respectively selected edge shape, here the first edge shape 48, indicated around.

FIG. 7 shows a schematic cross section through the pressure plate 12 with the thickness D clamped between the bending beam 52 and the shaping element 46 in order to illustrate the position of the respectively selected edge form 48, 48a-48c. Typical thicknesses are below 1 mm, for example 0.2 to 0.5 mm. A solid line shows a first edge form 48 with a first radius of curvature r ₁ about a first center line M ₁ . Dashed lines show a second edge shape with a second radius of curvature r ₂ about a second midpoint line M ₂ and the adjusted position of the bending beam 52. The molding device 34 and in particular the molding element 46 is arranged and formed such that the midpoint lines M ₁ and M _{2 of} the respectively selected edge shape 48, 48 a each lie in a plane parallel to the displacement plane 60, inclined by 45 ° to the flat support surface 42 center plane 66 ,

All above-described relative movements can be with on the Machine tools commonly used adjustment (not shown in detail) can be realized. In an ideal but elaborate Execution are each servomotors used to automatically the device via a controller (not shown) to certain pressure rollers automatically only by specifying the special ones previously stored with their parameters Adjust pressure roller.

An embodiment of the pivot bearing 56 and the bearing block 58 with sliding guide is shown purely schematically in Fig. 8. The unit of pivot bearing 56 and bearing block 58 is shown in a view in the z-direction, with a section through the pressing beam 50 and the bending beam 52. On the bearing block 58, a bearing element 70 via a first positioning device 72, indicated by a first actuating gear, along the displacement plane 60 slidably mounted. On the bearing element 70, the pressing beam 50 is movably mounted in the y direction via a second positioning device 74, indicated by a second actuating gear. Next, the pivot bearing 56 with a pivot drive 76, indicated by a third gear, is provided on the bearing element 70. The pivot axis 54 can thus bring about the displacement along the displacement plane 60 in a concentric to the center line M _{i of} the selected edge shape 48 _i . For adjusting the pivot radius of the bending beam 52 is mounted movably on the pivot bearing 56 in the radial direction, here indicated by a slot guide 78 and a fourth positioning device 80, shown as a fourth actuating gear.

The actuating gears are simply indicated as a gear rack gear, it However, it should be clear to those skilled in the art that other transmissions, in particular more accurate spindle gear can be used.

Due to the shift plane 60, a suitable adjustment can be achieved simply by coupling the positioning of the bending element 52 and the pressing element 50. Thus, the pivot radius for the bending beam 52 when the press beam 50 is set to the appropriate value r _i + D.

A simpler, not explicitly shown embodiment provides for a common adjustment of the pressing beam 50 and the bending beam 52 in the x-direction for the application of the two beams 50, 52 to the pressure plate 12. The pivot radius for the bending beam 52 is simply rigidly set to the largest possible pivot radius r ₄ + D in this embodiment. Nevertheless, in the case of a bend, deformation will take place around the shaped element 46 and therefore an adaptation of the here decisive inside of the bending edge 28 to the selected edge shape will take place. The radii of curvature r ₁ to r _{4 of} interest here only differ by a few tenths of a millimeter, so that even with this simplified method useful results can be achieved for some applications.

In Fig. 9, finally, a concrete embodiment of a Umbiegungseinrichtung 32 with the molding device 34, here again with the variable bar-shaped fitting 47 with two selectable bending radii r ₁ and r ₂ shown. The pressing beam 50 is lockably mounted on the bearing block 58 along the displacement plane 50 by a suitable device (not shown in detail). On the pressing bar 50, the pivot bearing 56 is provided for the bending beam 52. In addition, the unit of pressing beam 50 and pivotally mounted bending beam 52 is movable in the x direction. The pivot axis 54 is brought by the displacement of the press beam 50 along the displacement plane 60 on the bearing block 58 and application of the press beam 50 by moving in the x direction to the pressure plate 12 concentric with the center line M _{i of} the selected radius r _i . For adjusting the pivot radius to the selected radius r _i (more precisely to r _i + D), an adjusting screw 90 is further provided, by means of which the bending beam can be positioned on the pivot bearing 56 in the radial direction.

The corresponding adjustable positions can be manual or with Actuators, for example, actuators, be taken. When adapting to only two different edge shapes are enough and it is with regard to easy operation advantageous, with each adjustment two End positions by stops 92 to mark and limit, as is indicated by the stops in Fig. 8. Additionally or alternatively Markers or a scale 94 may be provided for the appropriate setting.

In Fig. 10 is a further example of a support means, a portion of a Pressure roller 100 shown having a groove 102 for clamping a Pressure plate 104 is provided, as shown in FIGS. 1 to 3. at some on the market pressure rollers through the pressure roller 100th are represented in the groove 102, one or more projections 106, which project into the groove 102. In the Z direction, d. H. in Drehachsrichtung the pressure roller 100, these projections 106 can be elongated be formed, but there are very different types of protrusions possible and possible in the future. As shown in FIG. 10, a captures Edge region 108 of the pressure plate 104, which edge region 108 in the groove 102 is introduced, also the projection 106. For the exact arrangement of Pressure plate 104, the edge portion 108 exactly to the edge 110 between the groove 102 and cylinder jacket of the pressure roller 100 adapted bent and with an embossment 112 for the exact detection of the projection 106 is provided.

The projection has the task of the gap distance within the groove 102 to reduce and hold the pressure plate 104 tighter. This allows the Plate voltage can be increased.

In the following, with reference to FIGS. 11 to 18, a presently preferred Embodiment of an apparatus for preparing such printing plates 104 described the edge portions 108 of the pressure plate 104 at different pressure rollers 100 can adapt so that they depending on Pressure roller 100 different radii during bending and different Embossing or printing rolls 100 can handle with or without imprints.

In Fig. 11, a molding device 120 is shown. The molding device 120 is Part of a Umbiegeeinrichtung 122 for bending the edge portion 108, the in Fig. 6 is shown in entirety. The molding device 120 according to FIG. 11 represents different edge shapes 124, 125 are available to which one different radius adapted bend the edge portion 108 takes place. For this purpose, the shaping device 120 has as form elements two shaped bars 126, 127 on. The first mold bar 126 is fixedly attached to the former 120. For this purpose, the first shaped bar 126 has a holder 128 for screwing on on.

The second mold bar 127 is as an attachment element for the first mold bar 126 formed. The second mold bar 127 can be by means of a Swing pivoting mechanism 130 in front of the first forming bars 126 as this represented by dashed lines, or forward and down swing away, as shown by solid lines. In weggeschwenktem state of the second mold bar 127 can be the first Edge shape 124, which is formed on the first mold bar 126, for Use bending of the edge area 108. At Vorsetzen the second Form beam 127 in front of the first mold bar 126 can be the second Edge form 125 to bend over.

The edge shapes 124, 125 are on the two mold bars 126 each in the x-direction projecting protrusions 132, 133 are formed. The projections 132, 133 include an acute angle. The top of each Projection 132, 133 forms a flat bearing surface 134, at which the Pressure plate 104 by means of a later shown in more detail Retention device can be held. In the example shown the front of the projection 132 of the first mold bar 126 with a Embossing structure 138 provided with embossing projections 140 which are connected to the Projections 106 of the pressure roller 100 are adapted. The front of the Projection 133 of the second mold bar 127, however, is smooth. The backside of the second form bar 127 is at the front of the first mold bar 126th adapted and has corresponding recesses 142 for receiving the embossing projections 140 on.

The pivoting mechanism 130 has a rack 144, which passes through a stepper motor 146 is movable. A gear segment 148, on which the second mold bar 127 is fixed, meshes with the rack 144th

In the following, the retaining device 150 will be explained with reference to FIG. The Retaining device 150 has a retaining element in the form of a press beam 152, which via a pressing surface 154, the pressure plate to the level Support surface 134 presses. The pressing surface 154 defines the zero position of the Bender 122 in the vertical y direction. The pressing beam 152 is via a cylinder 156 in the y-direction movable on lateral holding plates 158 - Also known as bearing blocks - attached. The side holding plates 158 have protruding into lateral recesses 153 of the press beam 152 projecting portions 159, a pivot bearing 160, which is part of a Bending device 162 described in more detail later. The Swivel bearing 160 is driven by a pneumatic drive 164 here.

In Fig. 13, a first adjustment 166 is shown. This first Adjustment means 166 moves the retaining means 150 together with the Bending device 162 relative to the molding device 120 in the x direction and can so the resulting from the setting of the second form of bar 127 offset compensate for the respective edge shape 124, 125 in the x direction. The first Adjustment 166 has two guide carriages 168, 169, the two Side parts 170 driven by at least two cylinders (spindle drives) 172 can move in the x direction. On the side parts 170 are then the Clamping device 150 and the bending device 162 via a second Adjustment device 174 attached, as shown in more detail in Fig. 15. The second adjusting device 174 serves to adjust the retaining device 150 and the bender 162 in the y-direction about the press beam 152 to the on to press the flat bearing surface 134 resting pressure plate.

A third adjuster 176 is shown in FIG. The third Adjustment device 176 has on a base support 178, which covers the entire Bender 122 carries, two guide carriages 180, 181, the one movable support 182 lead in the x direction. On the movable support 182 are as shown in Fig. 15, both the molding device 120 and the Guide carriages 168, 169 of the first adjuster 166 attached.

The third adjusting device 176 thus forms a first plane of an adjustment in x-direction. The first adjuster 166 forms the second level of Adjustment in x-direction. The third adjuster 176 is replaced by a Power driven, the overall system of the Umbiegeeinrichtung 122 to the work area, d. H. moves to the right place on the printing plate. at Pre-setting or removing the second mold bar 127 is a Adjustment of the position of the respective edge shape 124, 125 by the third Adjustment device 176. The adaptation of the retaining device 150 and the Bending device 176 in the x direction then takes place via the second plane, namely the first adjuster 166.

As can be seen from FIG. 15, guide carriages 183, 173 are provided on the side parts 170, 184 of the second adjuster 174 attached. At the movable end of the Guide carriages are the side holding plates 158 with the pressing bar 152 and the pneumatic drive 164 attached. Relative to the side holding plates 158 with the pivot bearing 160 is above the cylinders 156 of the pressing bars 152 movable, so that the pivot axis 161 in y-direction relative to the zero position in the center of the respective radii A, B of the selected edge shape 124, 125 is insertable. The adjustment of the x-position of the pivot axis 161 takes place via the first adjusting device 166. The adjustment of the y-position of Pivot axis 161 via the second adjustment. The adjustment of the Zero point position then takes place through the cylinder 156.

It is further shown yet another carriage 185, the clearer can also be seen in Fig. 14. This further guide carriage 185 leads a driven by the pneumatic actuator 164 rack (not closer represented), which via a corresponding sprocket pivoting the Verschwenlagagerung 160 drives.

On the pivot bearing 160 is a bending element of the bending device 162 in FIG Shape of a bending beam 186 stored. The bending beam 186 can be over Swivel bearing from the position shown in Fig. 15 by solid lines pivot in the position shown in Fig. 15 with dashed lines. at This pivoting movement of the bending beam 186 bends the edge portion 108th around the respective selected edge shape 124, 125 around. The bending device 162 is shown in FIG. 16 only once again together with the pressing bar 152 and the vertical pneumatic actuator 164.

FIG. 17 shows a plan view of the bending beam 186. As shown in FIG. 17 can be seen, the bending beam 186 has a larger beam portion 188, with the Bending beam 186 side of the respective pivot bearing 160 to the lateral holding plates 158 is mounted. About four actuators 189 is on the Bar part 188 a plant part 190 movably held in the form of a pressure bar. The system part 190 forms the contact surface, with which the umbiegende Edge region 108 is detected. The actuators 189 fit the radius of the Bending movement to the respectively selected radius A, B of the respective Kant form.

This is shown again in Fig. 18 in more detail, where the bending beam 186 with its two sub-elements 188, 190 and one of the actuators 189 in Operative relationship with the first forming bar 126 and the pivotal mounting 160 is shown. The bending beam 186 is accordingly constructed in several parts. He is externally mounted, allowing a good power transfer to the bending beam is guaranteed. The plant part 190, here in the form of a pressure bar, is movable to a beam main body - beam part 188 - formed. This can be done the contact surface 191 at different radii and demgemässe adjustment the pivot axis 161 back to the zero-point plane of the pressing surface 154th to adjust. Actuators 189 are pneumatic actuators, but they are as with all other drives of the device shown here Stepper motors or servomotors, for example in conjunction with Spindle drives possible.

The operation of the bending device 122 shown here according to the fourth Embodiment can be explained with reference to FIG. 15 as follows. First, will according to the pressure roller to be adjusted, whether the first mold bar 126 or second mold bar 227 is to be used. Accordingly, the second mold bar 227 with the pivoting mechanism 130 either pre-set or folded away. The adaptation of the position of the edge mold 125 via the first level with the third adjustment in the x direction. The x-axis of the Pivot axis 161 is above the second level of the x-adjustment with the first Adjustment 166 adapted. In this way, come the molding device 120, the retaining device 150 and the bending device 162 in matching relative x-position to the printing plate. The printing plate is then processed by the second adjusting device 164 and corresponding pressing of the Press beam 152 held. The adjustment of the y-position of the Pivot axis 161 to the respective selected edge shape 124, 125 on the second adjusting means 174 and the adjustment of the zero position of the Pressing surface 154 via the cylinder 156. At the same time the system part 190 via the actuators 189 again adjusted to the zero point position, so that Also, the contact surface 191 fits snugly against the pressure plate. Then the Bending beam 186 pivoted by the pneumatic drive 164, whereby the Edge region of the printing plate is bent. When selecting the first Form beam 126 then takes place at the end by pressing the edge region the front of the corresponding projection 132 also embossed Edge region 108 of the printing plate by the embossing projections 140th Then all units go back, so that the appropriate bent printing plate 104 is released and on the pressure roller 100th can be clamped.

The device is in the various illustrated embodiments especially for printers, the printing machines and thus Pressure rollers of different manufacturers own. The device according to the in located pressure rollers adapted assortment of two at the customer customize existing printing presses.

The explained with reference to FIGS. 11 to 18 device has not at one illustrated opposite end yet another analogously constructed Umbiegeeinheit with the same structure as shown in Fig. 15, to a reshape opposite edge area. This further Umbiegeeinrichtung can in principle with two other, different Be provided edge shapes and / or shape bars, so that a total of four various forms of pressure rollers are manageable.

Although different possible features based on different Embodiments of apparatus for preparing plates explained so it is clear that you can through any exchange and any Combination of the individual characteristics with each other further, not closer illustrated embodiments may form.

LIST OF REFERENCES:

10

first pressure roller

12

printing plate

14

first groove

15

second groove

16

second pressure roller

17

edge

18

peripheral surface

20

Adjusting spring

22

image

24

position marks

26

edge region

27

edge region

28

Bending edge of the printing plate

29

Vacuum table (plate positioning device)

30

contraption

31

conveyor belts

32

buckler

34

forming device

36

Securing device

38

bender

40

End areas of a bending table

42

level bearing surface

44

Displacement corrections to the relative displacement of the Umbiegeeinrichtungen

46

Mold element (mold bar)

47

changeable fitting

48

first edge shape

48a

second edge shape

48b

third edge shape

48c

fourth edge shape

50

Pressing beam (pressing element)

52

Bending beam (bending element)

54

swivel axis

56

pivot bearing

58

bearing block

60

displacement plane

62

rotary magazine

64

boom

66

Center level

70

bearing element

72

first positioning device

74

second positioning device

76

Rotary actuator

78

Slot guide

80

fourth positioning device

90

screw

92

attacks

94

scale

100

platen

102

groove

104

printing plate

106

projections

108

edge region

110

edge

112

embossing

120

forming device

122

buckler

124

edge shape

125

edge shape

126

first shape bar

127

second formbar

128

bracket

130

swivel mechanism

132

projections

133

projections

134

level bearing surface

138

embossed structure

140

formative advantage

142

recesses

144

rack

146

stepper motor

148

gear segment

150

Securing device

152

pressing bars

153

recesses

154

Press area

156

cylinder

158

lateral holding plates (bearing block)

159

projecting areas

160

pivot bearing

161

swivel axis

162

bender

164

pneumatic drive

166

first adjustment device

168

Carriage (second level)

169

Carriage (second level)

170

side panels

172

cylinder

174

second adjustment device

176

third adjustment device

178

base support

180

carriages

181

carriages

182

movable carrier

183

carriages

184

carriages

185

another carriage

186

bending beam

188

beam part

189

actuator

190

plant part

191

contact surface

A ₁ , A ₂

Distance bending edges of position marks

D

Thickness of the printing plate 12

FB1

first formbar section

FB2

second formbar section

FB3

third formbar section

FB4

fourth formbar section

M ₁ , M ₂

Center line of the edge shape

r _i , r ...

Radius of curvature of the edge 17 or an ith edge shape

U

circumferential distance

Claims (35)

Apparatus (30) for preparing plates (12, 104) for placement on a support means (10, 16, 100) by bending an edge portion (26, 27, 108) of the panel (12, 104) to engage the bent edge portion (26, 27, 108) an edge (17, 110) of the support means (10, 16, 100) to include and / or engage behind, with: a retaining device (36, 150) for holding the plate (12, 104), a forming device (34, 120) having a bearing surface (42, 134) for laying on the plate (12, 100) to be retained by the retaining device (36, 150) and one of the support surface (42, 134) adjacent edge shape (48, 48 a, 48 b, 48 c, 124, 125), and a bending device (38, 162) having a bending element (52, 186) for bending over the edge region (48, 48a, 48b, 48c, 124, 125) of the edge region (26, 27, 108) of the plate (12, 104), said forming means (34, 120) being provided with a plurality of edge shapes (48, 48a, 48b, 48c, 124, 125) selectively insertable to reshape said edge portion (26, 27, 108) and
wherein a movement curve of the flexure (52) of the flexure (38) relative to the former (34, 120) for conforming to the respective selected edge shape (48, 48a, 48b, 48c, 124, 125) is changeable. Device according to claim 1,
characterized in that the shaping device (34, 120) has at least two edge shapes (48, 48a, 48b, 48c; 124, 125) with different radii of curvature (r _i , r ₁ , r ₂ ) seen in cross-section. Device according to one of the preceding claims,
characterized in that the edge shapes (48, 48a, 48b, 48c; 124, 125) are (circularly) formed in the cylinder jacket section. Device according to one of the preceding claims,
characterized in that the bender (38) for adjusting the movement curve of the flexure (52) is slidable relative to the former (34) in an inclined displacement plane (60) inclined to the support surface (42) at an acute angle. Device according to claim 4,
characterized in that the displacement plane (60) to the support surface (42) is inclined by approximately 45 degrees. Device according to one of the preceding claims,
characterized in that the bending device (38, 162) has as a bending element a bending beam (52, 186) for detecting and bending over the edge region (26, 27, 108) which is mounted at its end regions in such a way that it surrounds the respectively selected edge shape (48, 48a, 48b, 48c, 124, 125) is pivotable around with preferably adjustable distance or pivot radius. Device according to claim 6,
characterized in that the distance and / or the pivot axis (54) of the pivoting movement by a displacement of the bending device (38, 162) is adjustable. Device according to one of the preceding claims,
characterized in that the retaining means (36, 150) comprises a pressing member, in particular a pressing beam (50, 152) movable relative to the support surface (42, 134) for holding the panel (12, 104) against the support Pressing surface (42, 134) to press or release it. Device according to one of the preceding claims,
characterized in that the retaining device (36, 150) together with the bending device (38, 162) relative to the support surface (42, 138) is slidably inclined in particular. Device according to one of the preceding claims,
characterized in that a plurality of clinching means (32, 32 ', 122) respectively provided with the retainer means (36, 150), the former means (34, 120) and the flexure means (38, 162) are provided for clinching a plurality of edge portions (26 , 27, 108) of the plate (12, 104) are provided. Device according to claim 10,
characterized in that the Umbiegeinrichtungen (32, 32 ', 122) are movable relative to each other. Device according to claim 11,
characterized in that two Umbiegeinheiten (32, 32 ', 122) for bending opposite edge portions (26, 27, 108) are provided, which for the purpose of setting a distance of the bends (28) of the edge regions (26, 27, 104) towards each other and moving away from each other. Device according to one of the preceding claims,
characterized in that a plate positioning means (29) is provided for aligning the plate (12, 104) prior to clamping and bending. Device according to one of the preceding claims,
characterized in that the forming means (34) has a selection member (46, 47, 62) having the plurality of edge shapes (48, 48a, 48b, 48c) movable to select the desired edge shape (48, 48a, 48b, 48c) is, in particular, is rotatable. Device according to one of the preceding claims,
characterized in that the shaping device (34) is designed and arranged such that the center (M ₁ ) of the respective selected edge shape, around which a bend of the edge region (26, 27) takes place, in each case to a displacement plane (60) the bending device (34) parallel, to the support surface (42) inclined plane (68). Device according to one of the preceding claims,
characterized in that the forming means (120) comprises a first mold member (126) having a first edge mold (124) and a second mold member (127), particularly a second edge mold (125), the second mold member (127) being removable Attachment element for the first mold element (126) is formed. Device according to one of the preceding claims,
characterized in that the holding device (150) and the bending device (162) by means of a first adjusting device (166) relative to the forming device (120) in a first direction (x, at least with a direction component perpendicular to the extension of the edge forms (124, 125)) ) are linearly movable to compensate for the offset of the edge shapes (124, 125) relative to the retainer (150) and the bender (162) due to advancement or removal of the second die member (127). Device according to claim 17,
characterized in that the retaining means (150) and the bending means (162) by means of a second adjusting means (174) movable independently of the first adjusting means (16) relative to the forming means (120) in at least one directional component perpendicular to the extension of the first and the second edge shape (124, 125) and the second direction (y) perpendicular to the first direction (x) are linearly movable to provide a reference point (161) of the trajectory of a flexure (186) of the flexure (162) to the respective selected edge shape (124, 125). Device according to one of claims 17 or 18,
characterized in that the first direction (x) in the intended use is parallel to the plate (104). Device according to claim 19,
characterized in that the retaining device (150), the bending device (162) and the molding device (120) are linearly movable relative to the plate (108) by means of a third adjusting device (176), in particular parallel to the first direction (x) compensate for the offset of the edge shapes (124, 125) relative to the plate (108) due to advancement of the second feature (127). Apparatus according to claim 16 or claim 16 and according to any one of claims 17 to 20,
characterized in that a back side of the second feature (127) is adapted to the front of the first feature (126) such that it can be applied to the front side of the first feature (126) in a planar contacting manner. Apparatus according to claim 16 or claim 16 and any one of claims 17 to 21,
characterized in that the first mold element (126) is fixed relative to a holder (128) of the mold device (120) and the second mold element (127) is designed to be movable relative to the holder (128). Apparatus according to claim 16 or claim 16 and any one of claims 17 to 22,
characterized in that the former (120) has a pivot mechanism (130) for pivoting the second die member (127) away from the first die member (126) and pivoting the second die member backward in front of the first die member. Device according to one of the preceding claims,
characterized in that the shaped elements are each formed by at least one elongated form beam (126, 127) whose cross-section is provided with a projection (132, 133) projecting transversely to the longitudinal direction, at its tip an edge enclosing an acute angle with that for forming provided respective edge shape (124, 125), in particular with a desired radius (A, B) is formed. Device according to one of the preceding claims,
characterized in that the front side of at least one of the mold elements (126) has a projecting edge with the edge shape (124) desired for forming and displaces one or more embossing projections (140) for embossing on the bent edge region (108) of the plate (108). 104). Device according to one of the preceding claims,
characterized in that the bending device (162) has a bending element (186) pivotably mounted around the respective edge form (124, 125) on a pivot bearing (160). Device according to claim 26 and claim 17,
characterized in that the pivot bearing (160) of the bending device (162) relative to the molding device (120) in a at least one direction component perpendicular to the extension of the edge shapes (124, 125) and perpendicular to the first direction (x) extending second direction (y) is movable. Device according to one of the preceding claims, insofar as dependent on claim 17,
characterized in that a retaining element (152) of the retaining device (150) relative to a bending element (186) of the bending device (162) in a at least one direction component perpendicular to the extension of the edge shapes and perpendicular to the first direction (x) extending second direction (y ) is movable. Apparatus according to claim 26 or claim 26 and any one of claims 27 or 28,
characterized in that the on the pivot bearing (160) pivotally mounted bending element (186) along its longitudinal direction in a pivot bearing mounted on the holding part (188) and a radially movable relative to the pivot axis movable system part (190) for applying to the edge region ( 108) of the plate (104) is divided. A method of preparing a plate (12, 104) for application to a support means (10, 16, 100) by bending an edge region (26, 27, 108) of the plate (12, 104) so that the edge region (26, 27 , 108) of the plate (12, 104) can comprise and / or engage behind an edge (17, 110) of the carrier device (10, 16, 100) with: Selection of an edge shape (48, 48a, 48b, 48c, 124, 125) adapted to the edge (17, 110) of the carrier device (10, 16, 100), Adjusting a movement curve, adapted to the edge shape (48, 48a, 48b, 48c, 124, 125), of a bending element (52, 186) of a bending device (38, 162), Holding the plate (12, 104) and Bending the edge region (26, 27, 108) of the plate (12, 104) by means of the bending element (52, 186) moving along the movement curve around the selected edge shape (48, 48a, 48b, 48c, 125, 124). Method according to claim 30,
characterized in that the edge form is selected from a group of edge shapes (48, 48a, 48b, 48c, 124, 125) each having a certain radius of curvature (r _i ) different from the one or more radii of curvature of the other edge shape (s) ) (48, 48a, 48b, 48c, 124, 125) are different, circular cylinder jacket section-shaped curved. Method according to claim 31,
characterized in that as a movement curve a circular pivoting movement with a by the thickness (D) of the plate (12, 104) relative to the radius of curvature (r _i ) of the selected edge shape (48, 48a, 48b, 48c, 124, 125) larger pivot radius concentric is set to the circularly curved edge shape (48, 48a, 48b, 48c, 124, 125). Method according to claim 32,
characterized in that the adjustment of the swivel radius and / or the pivot axis (54) for adaptation to the selected edge shape (48, 48a, 48b, 48c) by displacement of the bending device (38) in a plane inclined obliquely to the plate plane (60) , Method according to one of the preceding claims,
characterized in that the center, in particular a central axis or a focal point axis, of the edge shape, around which the edge region (26, 27) is bent, is arranged in a plane (68) parallel to a plane inclined to the plane of the plate (42) (60) is along which the bending device (38) for adjusting the movement curve is displaceable. Using the device (30) or the method according to one of preceding claims for preparing printing plates (18) for different pressure rollers (10, 16).

Images