EP1608509A1 - Device for storing a blanket to be supplied to the cylinder of a printing machine and method for supplying blankets to a cylinder of a printing machine - Google Patents

Abstract

The storage device has two storage positions, the second one being below the first one and offset vertically along the length (L) of the incoming elevator (01) to store the elevator released from the holder. An elevator fallen into the second storage position lies on a rest. The feed device takes this elevator to the cylinder in a linear motion parallel to the rest.

Description

2004-02-19

description

Apparatus for storing an elevator to be fed to a cylinder of a printing machine and a method for feeding elevators to a cylinder of a printing machine

The invention relates to an apparatus for storing an elevator to be fed to a cylinder of a printing machine and to a method for feeding elevators to a cylinder of a printing press according to the preamble of claim 1 or 66.

By DE 43 42 359 C1 a magazine for the automatic printing plate change is known, wherein the magazine accommodates a plurality of printing plates to be supplied to a plate cylinder, wherein a switchable holding device is provided for each provided in the magazine pressure plate, all provided in the magazine printing plates vertically in cascade Arrangement set in the magazine and are placed with its front edge on the switchable holding device. After an actuation of the holding device, this allows the pressure plate supported by it to fall with the leading edge onto a curved conveying surface, wherein the conveying surface allows the pressure plate to slide to a pair of transport rollers, the transport rollers, after their gripping of the printing plate, conveying them to the plate cylinder. The device described in DE 43 42 359 C1 has the disadvantage that it obstructs the access to the printing unit by its vertically aligned magazine and thus considerably complicates maintenance and cleaning work to be carried out on the printing unit. Due to the cascade-shaped arrangement of the printing plates, a very long sliding path up to the transport rollers is produced for the printing plate set up on the highest arranged holding device along the conveying surface, which the printing plate has to drive back after actuation of the holding device solely by gravity. One of the flexible pressure plate impressed by the conveying surface curvature counteracts a resulting from the elasticity of the pressure plate restoring moment, which increases the friction between the pressure plate and the conveying surface, the friction naturally as an energy-consuming 2004-02-19

Resistance in turn inhibits the sliding movement of the pressure plate on the long conveying surface, so there is a risk that the pressure plate stuck as a result of consumption of their drive energy or jamming in the magazine and thus their leading edge does not reliably reach the transport rollers and consequently the form cylinder are not reliably supplied can.

From DE 4327013 C1 a printing plate cassette for a magazine is known, wherein the cassette accommodates a plurality of printing plates and the printing plates by means of a disk removal device are pulled out of the cassette, wherein spacers fanned the printing plates as an aid to their removal in the removal area, wherein the the uppermost printing plate of a stack of printing plates is fed with folded at its trailing end Einhänbringeln priority a plate cylinder. There is the disadvantage that the printing plates stored in the magazine are spaced apart from one another only in their removal area by the fan-shaped spacer elements. Accordingly, the printing plates to be fed to the cylinder are not stored entirely without contact surfaces in spaced-apart memory positions, so that there is a risk of damage to their surface, in particular when the printing plates are removed from the magazine. Also, it is possible to supply only the uppermost pressure plate in the magazine.

From DE 42 39 895 A1 a feeding device for the automatic intake of flexible printing plates is known, wherein also in a more or less inclined with respect to the horizontal stack at the bottom arranged pressure plate by its front region detecting separating and feed rollers associated with a forme cylinder pressure cylinder, an intermediate cylinder or a transfer drum of a sheet-fed printing machine can be supplied, wherein at least the forme cylinder, the impression cylinder and the intermediate cylinder each having a gripper system for gripping the non-folded end of the supplied pressure plate. With the separation and feed rollers of this feeder only printing plates without a folded suspension leg at its trailing end from the magazine W1.1987PGT 2004-02-19

conveyed. When separating the printing plates there is also the risk of damage to their surface.

From DE 39 40795 A1 a method and a device for automatically feeding a printing plate to a plate cylinder or for discharging a plate cylinder of a rotary printing press are known. The method of automatically feeding a printing plate to a plate cylinder of a rotary printing press, wherein the plate cylinder and the like are fed to a plate cylinder. a. Means for clamping and clamping the pressure plate, provides that the pressure plate placed in a storage chamber of Druckplattenzuführ- orabführvorrichtung, the plate cylinder is rotated to a Druckplattenzuführstellung and the pressure plate is fed by means of a number of transport rollers of a clamping device of the plate cylinder. The method for automatically discharging a printing plate from a plate cylinder of a rotary printing press, the plate cylinder and the like. a. Means for relaxing and releasing the pressure plate, characterized in that the plate cylinder rotates forward to a printing plate release position, that a clamping flap for detecting a printing plate end opened, that the plate cylinder rotated backwards, that a clamping flap for detecting a pressure plate top opened and that the pressure plate is supplied to a Druckplattenzuführ- or -abführvorrichtung by means of a number of transport rollers of a storage chamber. The device for carrying out the aforementioned method has at least one transport roller designed as a drive roller and a transport roller designed as a pressure roller, wherein the pressure roller can be adjusted to the drive roller. In addition, various adjusting means, a pivotally mounted pressure roller for pressing the pressure plate to the plate cylinder and ejection fingers may be provided, wherein the ejection fingers may have tips which are pivotally mounted in the periphery of the plate cylinder. Also, the storage chamber of Druckplattenzuführ- or - be discharged pivoting about a hinge.

DE 3940796 A1 describes a device for automatically changing a printing plate on a plate cylinder of a rotary printing machine, wherein the 2004-02-19

Plate cylinder u. a. Means for clamping and clamping the pressure plate, wherein the pressure plate changing device has two storage chambers, so that a plate cylinder dissolved pressure plate can be guided by means of transport rollers in the one storage chamber, while stored in the other storage chamber pressure plate is fed by means of transport rollers of a clamping device of the plate cylinder.

EP 1 084839 A1 describes a device for holding and conveying a printing form. In this case, the device has translational conveying devices which convey a printing forme to be mounted on a forme cylinder or a printing forme to be removed from a forme cylinder. While the device is tilted from a rest position to its operating position for changing a printing form about an axis of rotation, a hook pivots only due to its own weight in the space in which the printing plate is mounted and secures the printing forme at its trailing beveled end against accidental falling out this room.

EP 0 21 549 B1 discloses an apparatus for automatically feeding a printing plate to a forme cylinder of a printing press or for discharging a printing plate from a forme cylinder, wherein the printing plate to be supplied to the forme cylinder is guided by the lateral positioning elements in a desired position to remain in the forme cylinder the feeding of the printing plate takes place from a substantially horizontal storage position.

From EP 0 100 779 A1 a device for automatic replacement of printing plates is known, wherein in a disk storage device a plurality of plates to be mounted are suspended from a arranged below the plate cylinder clamping rod and lifted on the mounting rod to the plate cylinder.

By WO 93/04863 A1 discloses a device for automatically changing printing plates is known, wherein a plurality of printing plates are stored in a magazine and wherein an exchange of a printing plate with a forme cylinder only under one 2004-02-19

Inclined position of the magazine.

US Pat. No. 4,178,848 discloses an apparatus for automatically feeding printing forms to a forme cylinder, wherein printing forms having non-folded ends are stored in a stack inclined in the feeding direction and are driven sequentially, by rollers, over the conveying cylinder arranged in the feeding direction in front of the stack are supplied, wherein in each case the lowest located pressure mold is pulled at its leading end with a sucker from the stack. This very long-building device is not suitable for printing forms with folded ends. Moreover, when pulling out of the directly stacked printing forms there is a risk of damaging their printed image pages.

The invention has for its object to provide an apparatus for storing an elevator to be fed to a cylinder of a printing press and a method for supplying elevators to a cylinder of a printing press.

The object is achieved by the features of claim 1 or 66.

The advantage achievable with the invention is, in particular, that several lifts on a cylinder can be changed quickly and reliably at the same time or at least in a very rapid sequence on a cylinder. The elevator falls due to the operation of a holding member from a vertically upper storage position to an underlying storage position, from which it can be transported to the cylinder. By the actuation of the holding element of the stored elevator changes in free fall from its vertical upper storage position in the underlying storage position. The actuation of the holding element is preferably carried out with a controllable drive and can thus be made by machine. When changing the storage position of an elevator stored in the magazine remains to be changed in its storage position elevator during the change process in the magazine, the change is triggered by a controllable machine element of the magazine. 2004-02-19

An elevator to be changed in its storage position is not exposed to the risk that its surface will be damaged when changing. The device is also suitable for in particular in their length flexurally elastic elevators with folded at their ends Einhänbringeln. Moreover, the device builds extremely flat in their height so that they do not hinder the required accessibility to the printing unit.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

Fig. 1 is a perspective view of an elevator;

FIG. 2 is a simplified sectional view of a holding device for a lift arranged on a cylinder; FIG.

Fig. 3 tangentially attached to a cylinder elevators on the at her

Mounting a radial force acts;

Fig. 4 elastically biased elevators when mounted on a cylinder;

5 shows a 4-cylinder printing press with printing forme magazines;

6 shows a device for changing an elevator on a forme cylinder of a printing machine;

7 shows a detailed view of guide rails for the lateral support of a second printing forme in a shaft;

Fig. 8 arranged in the axial direction of the forme cylinder side by side

Printing forms in a shaft; W1.1987PGT 2004-02-19

9 shows a suspension of a guide rail which can be moved in a shaft;

10 to 12, a further embodiment of an embodiment of the lower shaft;

13 to 35 a representation of a method sequence for changing printing forms on a forme cylinder;

Fig. 36 shows another embodiment of a printing machine with

Printing forme magazines.

An elevator 01 (Fig. 1), the z. Example, as a plate-shaped printing plate 01 or as a support plate carrying a support plate is configured, has a substantially rectangular surface with a length L and a width B, wherein the length Lz. B. measured values between 400 mm and 1300 mm and the width B z. B. may have measured values between 280 mm and 1500 mm. Preferred measured values are for the length L z. B. between 360 mm and 600 mm and for the width B z. B. between 250 mm and 430 mm. The surface has a support side, which is referred to below bearing surface 02, with which the elevator 01 rests in the arranged on a lateral surface 07 of a cylinder 06 state (Fig. 2). The back of the support surface 02 is a work surface which, in the case where the elevator 01 is formed as a printing forme 01, is provided with a printed image or at least can be provided with a printed image. The elevator 01 has two opposite ends 03; 04 preferably each with angled Einhänbringeln 13; 14, wherein the ends 03; 04 limit the bearing surface 02 and wherein the suspension legs 13; 14 each preferably extend entirely or at least partially across the width B of the elevator 01. The contact surface 02 of the elevator 01 is flexible at least along the length L and, in the case of an arrangement of the elevator 01 on the lateral surface 07 of the cylinder 06, its curvature can be adapted (FIG. 2). When the printing forme 01 is arranged on the lateral surface 07, the length L runs 2004-02-19

Support surface 02 thus in the direction of the circumference of the cylinder 06, whereas the width B of the support surface 02 extends in the axial direction of the cylinder 06.

As shown in Figure 2, the suspension legs 13; 14 of the elevator 01 fixed by means of a holding device, wherein the holding device is arranged in a channel 08, wherein the channel 08 i. d. R. extends in the axial direction of the cylinder 06. A rectified with the production direction P of the cylinder 06 end 03 of the elevator 01 is referred to as the leading end 03, whereas the opposite end 04 is the trailing end 04 of the elevator 01. At least the ends 03; 04 of the elevator 01 with the suspension legs 13 formed thereon; 14 consist of a rigid, z. B. metallic material, eg. B. of an aluminum alloy. Usually, the material thickness D of the elevator 01 (FIG. 1) or the material thickness D is at least from the suspension legs 13; 14 a few tenths of a millimeter, z. B. 0.2 mm to 0.4 mm, preferably 0.3 mm. Thus, the elevator 01 as a whole or at least at its ends 03; 04 made of a dimensionally stable material, so that the ends 03; 04 are permanently deformable by a bend against a material-specific resistance.

At least at one end 03; 04 of the elevator 01 (FIG. 1), but preferably at both ends 03; 04 are along a bending edge 11; 12 each a folded suspension leg 13; 14 formed, wherein the suspension legs 13; 14 in a narrow, in particular slot-shaped opening 09 of the channel 08 of the cylinder 06 (FIG. 2) insertable and there by means of a holding device, for. B. a clamping device can be fastened. For example, based on the length L of the non-curved, flat bearing surface 02 of the uninstalled elevator 01 at the end 03 a suspension leg 13 at the bending edge 11 by an opening angle α1 or at the end 04 a suspension leg 14 at the bending edge 12 by an opening angle ß1 bent (Figure 1), wherein the opening angle α1; ß1 usually lie between 30 ° and 140 °. If the opening angle α1 is assigned to the leading end 03 of the elevator 01, it is preferably executed at an acute angle, in particular it is 45 °. The opening angle ß1 at the trailing end 04 of the elevator 01 is often preferably greater than 80 ° 2004-02-19

or obtuse, in particular it is 85 ° or 135 °. The bent suspension leg 13 at the leading end 03 has a length 113, which z. B. in the range of 4 mm to 30 mm, in particular between 4 mm and 15 mm. The bent suspension leg 14 at the trailing end 04 has a length 114, the z. B. 4 mm to 30 mm, in particular between 8 mm and 12 mm, with the shorter length measure is preferred to simplify removal of the suspension legs 13 as possible; 14 to ensure from the opening 09 of the channel 08.

Fig. 2 shows a simplified sectional view of a cylinder 06 with a lateral surface 07 and a channel 08, which has a narrow slot-shaped opening 09 with a slot width S to the lateral surface 07, wherein the slot width S is less than 5 mm and preferably in the range from 1 mm to 3 mm. The opening 09 has a front edge 16 and a rear edge 17 in the production direction P of the cylinder 06. Between the extending from the front edge 16 to the channel 08 toward wall 18 and an imaginary, resting on the lateral surface 07 of the cylinder 06 on the opening 09 tangent T09 an acute opening angle o2 is formed, which is between 30 ° and 50 °, preferably 45 ° is. The folded suspension leg 13 at the leading end 03 of the elevator 01 is thus preferably positively clamped at this front edge 16 of the opening 09, because the opening angle 1 at the leading end 03 of the elevator 01 is preferably adapted to the opening angle α2. In the same way, it behaves at the trailing end 04 of the elevator 01. Between the wall 19 extending from the rear edge 17 to the channel 08 and an imaginary tangent T09 resting on the lateral surface 07 of the cylinder 06 on the opening 09 is an opening angle ß2 formed, which is either between 80 ° and 95 °, preferably 90 °, or between 120 ° and 150 °, preferably 135 °. The bent suspension leg 14 at the trailing end 04 of the elevator 01 is thus preferably positively connected to this rear edge 17 of the opening 09, because the opening angle ß1 at the trailing end 04 of the elevator 01 is at least approximately adapted to the opening angle ß2. 2004-02-19

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In the channel 08 are z. B. at least one preferably pivotally mounted holding means 21 and a preferably biased spring element 22 is arranged, wherein the spring element 22, the holding means 21 z. B. against the folded suspension leg 14 at the trailing end 04 presses, which is hooked to the opening 09 at its rear edge 17, whereby the suspension leg 14 at the trailing end 04 at the extending from the rear edge 17 to the channel 08 extending wall 19 becomes. To release the pressure exerted by the holding means 21 pressing in the channel 08, a setting means 23, preferably a pneumatically actuable adjusting means 23 is provided, which pivots the holding means 21 against the force of the spring element 22 during its actuation. The holding device described by way of example consists essentially of the holding means 21, the spring element 22 and the adjusting means 23.

The exemplified cylinder 06 is preferably such that on its lateral surface 07 a plurality of, preferably similar elevators 01 can be arranged. If the cylinder 06 is designed as a forme cylinder, it can in its axial direction side by side z. B. with up to six plate-shaped printing plates 01 are occupied. It is also preferably provided that more than one elevator 01 can be arranged on the cylinder 06 in the direction of its circumference. Thus, in the cylinder 06 under the lateral surface 07 z. B. two axially extending to the cylinder 06 channels 08 may be provided, which have for attachment of elevators 01 axially to the cylinder 06 extending openings 09, wherein the openings 09 at the periphery of the cylinder 06 z. B. offset by 180 ° to each other, if two elevators 01 are to be arranged on the cylinder 06 along its circumference one behind the other. In this assignment of the cylinder 06 with two along its circumference successively arranged elevators 01, the leading end 03 of the one elevator 01 is fixed in the one channel 08, whereas the trailing end 04 of the same elevator 01 is fixed in the other channel 08. For the or the other arranged on this cylinder 06 lifts 01 applies accordingly. If several elevators 01 are arranged next to one another in the axial direction of the cylinder 06, they can advantageously also be arranged offset to one another. The offset can z. B. individual elevators 01 or groups of elevators 2004-02-19

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01 relate, each z. B. offset by half a length L of the elevator 01 to each other, which, however, requires that more channels 08 with associated openings 09 or at least with portions thereof are introduced into the cylinder 06 along the circumference of the cylinder 06 to the aforementioned channels 08 and openings 09 z. B. are arranged offset by 90 °.

In the following, a method for mounting a flexible elevator 01 on a cylinder 06 of a printing machine is described by way of example, wherein two elevators 01 can be arranged on the cylinder 06 along its circumference one behind the other and wherein each elevator 01 has a leading end relative to the production direction P of the cylinder 06 03 and a trailing end 04 (FIG. 3). At the leading end 03 of the elevator 01 a suspension leg 13 is formed, said suspension leg 13 is bent to the extended length L of the elevator 01 with an opening angle 1 of at most 90 °, preferably 45 °. In the cylinder 06 at least one preferably slot-shaped opening 09 are provided with a first edge 16 in the production direction P of the cylinder 06 and a second edge 17, wherein the edges 16; 17 in the axial direction of the cylinder 06 preferably parallel to each other. The leading end 03 of the elevator 01 is z. B. by means of an acting on the trailing end 04 of the elevator 01 thrust cylinder 06 preferably tangentially fed in its production direction P until the suspension leg 13 is present at the leading end 03 behind the second edge 17 of the opening 09 to the cylinder 06, so that the leading End 03 trained suspension legs 13 engages in a rotation of the cylinder 06 in the production direction P as a result of acting at least on the leading end 03, directed to the cylinder 06 radial force FR in the opening 09 and hooked to the first edge 16. In the event that the elevator 01 with its formed at the leading end 03 suspension leg 13 on the lateral surface 07 of the cylinder 06 is supported supporting it, the radial force FR z. B. acting on the lateral surface 07 of the cylinder 06 gravity FG of the elevator 01 be.

In addition to the use of the gravity FG of the elevator 01 or, alternatively, the leading end 03 of the elevator 01 can be elastically biased (FIG. 4), so that the 2004-02-19

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formed on the leading end 03 suspension legs 13 as a result of a directed to the cylinder 06 return torque MR springs into the opening 09, as soon as the opening 09 of the cylinder 06 and the contact line 27 of Einhänlegeels 13 with the lateral surface 07 of the cylinder 06 due to a relative movement between the elevator 01 and the cylinder 06 directly opposite each other, wherein the relative movement takes place in particular by the rotation of the cylinder 06 in the direction of production P.

The return torque MR results from the fact that the elevator 01 consists of an elastically deformable material and thus immanently has an elastically resilient property, this property is used insofar as the leading end 03 of the elevator 01 when approaching the cylinder 06 z. B. over a preferably axially extending to the cylinder 06, spaced from the cylinder 06 arranged edge 26 of a support member 24 and is bent there such that at the leading end 03 of the elevator 01 a bending stress with a cylinder 06 directed spring force builds up (dashed line the elevator 01 in Fig. 4). At least until the guided over the edge 26 of the support member 24 leading end 03 of the elevator 01 rests on the lateral surface 07 of the cylinder 06, the elevator 01 is fed with its trailing end 04 from a fixed to the cylinder 06 spatial direction. The elevator 01 is therefore stabilized during the assembly process by the contact line 27 of its attached to the leading end 03 Einhänlegeels 13 with the lateral surface 07 of the cylinder 06 and by its support on the edge 26 of the support member 24 and by a positional fixation 28 of the trailing end 04. The support member 24 may, for. B. as a rolling element 24, in particular as a roller 24 or as one or more axially to the cylinder 06 juxtaposed rollers 24 may be formed, the or z. B. in the function of a pressing member 24 to the cylinder 06 is adjustable or are. The support element 24 is preferably arranged close to the cylinder 06.

The leading end 03 of the elevator 01 can also be brought so against the cylinder 06, that this end 03 after its contact with the lateral surface 07 of the cylinder 06 at an acute angle γ with an imaginary, in 2004-02-19

13

a contact point 29 on the lateral surface 07 of the cylinder 06 resting second tangent T29 avoids the lateral surface 07 of the cylinder 06 (illustration of the elevator 01 in Fig. 4 with a solid line). The thus performed bending of the leading end 03 of the elevator 01 should, however, only be so strong that the suspension leg 13 attached there still rests securely against the lateral surface 07 of the cylinder 06. To support the safe concern of Einhänlegeels 13 on the lateral surface 07 of the cylinder 06 can, for. B. the support member 24 are employed on the elevator 01, whereby the elevator 01 is held with its leading end 03 close to the lateral surface 07 of the cylinder 06.

During the relative movement between the cylinder 06 and the elevator 01, preferably during the rotation of the cylinder 06 in its production direction P, but also just as well during a suitable movement of the elevator 01, z. B. counter to the direction of production P of the cylinder 06, hooked hooks hooked hook 13 at the leading end 03 of the elevator 01 at the first edge 16 of the opening 09 a. A rolling element 24 placed against the cylinder 06 can assist the mounting of the elevator 01 on the cylinder 06 by the rolling element 24 rolling up the elevator 01 onto the cylinder 06. At the trailing end 04 of the elevator 01 of the suspension leg 14 is formed, said suspension leg 14 is pressed by the rolling element 24 in the course of rolling up the elevator 01 on the cylinder 06 into the opening 09 of the cylinder 06.

An apparatus for carrying out the aforementioned method will now be described using the example of a web offset printing press with Σ. B. a standing rubber-against-rubber printing unit in 4-cylinder design with z. B. horizontal guidance of a printing material 46, preferably a paper web 46 explained (Fig. 5). In this example, in the printing unit, a first, below the paper web 46 arranged pair of rolling cylinders 31; 32 consisting of a forme cylinder 31 and a blanket cylinder 32 and a second, above the paper web 46 arranged pair of successive rolling cylinders 33; 34 consisting of a forme cylinder 33 and a blanket cylinder 34, wherein the paper web 46 between the two 2004-02-19

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against each other employed blanket cylinders 32; 34 is passed. In the printing machine are preferably more, z. B. five or six pressure points for different inks provided. In the following, for the sake of simplicity and without restricting the invention, it is assumed that at least the forme cylinders 31; 33 are the same in their construction and in their dimensions.

The forme cylinder 31 is covered along its circumference with two printing plates 36 and the forme cylinder 33 in the same way with two printing plates 37 or at least assignable, wherein the printing plates 36; 37 z. B. one half the circumference of the forme cylinder 31; 33 corresponding length L have. The width B of the printing plates 36; 37 is u. a. depending on how many printing plates 36; 37 in the axial direction of the respective form cylinder 31; 33 are to be arranged. Thus, in the axial direction of the respective forme cylinder 31; 33 z. B. up to six printing plates 36; 37 may be arranged side by side. Preferably, the form cylinders 31; 33 double-width and doppelumfänglich formed, whereas on the blanket cylinders 32; 34 arranged blankets the blanket cylinder 32; 34 z. B. fully encompass.

As already shown in FIGS. 1 and 2, the printing plates 36; 37 at its on the length L-related end-side ends bent suspension legs 13; 14, with which the printing plates 36; 37 on the respective form cylinder 31; 33 are fixed by the suspension legs 13; 14 in one of the in the lateral surface of the forme cylinder 31; 33 introduced, in the axial direction to the forme cylinder 31; 33 extending slot-shaped openings 09 introduced and there optionally with a in the forme cylinder 31; 33 are preferably held in a channel 08 arranged holding device. At the leading end 03 of each printing plate 36; 37 is the opening angle α1 between the folded suspension leg 13 and the extended length L of the printing plate 36; 37 preferably 45 °. At the trailing end 04 of each printing plate 36; 37 is the opening angle ß1 between the folded suspension leg 14 and the extended length L of the printing plate 36; 37 preferably 90 °. The slot width S in the form of cylinder 31; 33 introduced openings 09 is preferably 1 mm to 5 mm, in particular 3 mm. 2004-02-19

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For a change of one or more on the form of cylinders 31; 33 arranged printing plates 36; 37 are z. B. for the forme cylinder 31, a first, arranged below the paper web 46 printing forme magazine 38 and for the forme cylinder 33, a second, above the paper web 46 arranged printing plate magazine 39 is provided, each printing forme magazine 38; 39 each have a receiving device 41; 42, z. B. a slot 41; 42, for receiving at least one of the respective forme cylinder 31; 33 abzunehmenden, used printing plate 36; 37 and a receiving device 43; 44, z. B. a shaft 43; 44, for receiving a on the respective form cylinder 31; 33 to be mounted, new printing plate 36; 37, wherein preferably each receiving device 41; 42; 43; 44 preferably several Speicheφositionen each for abzunehmende, used printing plates 36; 37 and for to be mounted, new printing plates 36; 37 has. While that the respective form cylinder 31; 33 associated printing form magazine 38; 39 z. B. by a pivoting movement of the respective form cylinder 31; 33 for changing a printing plate 36; 37 is employed, z. B. the first forme cylinder 31 and the second forme cylinder 33 of their respective operatively connected blanket cylinder 32; 34 turned off. Alternatively or in addition to the parked form cylinders 31; 33 can also the blanket cylinder 32; 34 be parked from the paper web 46. This is when changing one or more printing plates 36; 37, the relevant forme cylinder 31; 33 decoupled from the paper web 46, while in the printing unit, the other pair of cylinders 32; 34 can remain in production.

In the printing form magazines 38; 39 are the shafts 41; 43 and 42, respectively; 44 for receiving at least one used or new printing plate 36; Each advantageously arranged at least substantially parallel to each other, ie they are preferably arranged one above the other in a layered construction. Here, Σ. B. a partition 47 in the respective printing forme magazine 38; 39 the shafts 41; 43 and 42, respectively; 44 separate from each other (Fig. 5). Each slot 41; 43 and 42, respectively; 44 has for the printing forms 36 to be stored in them; 37 at least two memory positions. To ensure good access to the shafts 41 even when the paper web 46 is running; 43 and 42, respectively; 44 too 2004-02-19

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allow, for. B. for removing a used printing plate 36; 37 from the shafts 41; 42 or to provide a new printing plate 36; 37 in the shafts 43; 44, these shafts 41; 43 and 42, respectively; 44 preferably from the side facing away from the forme cylinder 33 side or from a direction parallel to the direction of the paper web 46 side of the printing forme magazines 38; 39 accessible. The printing form magazines 38; 39 each extend preferably over the length of the bale of the forme cylinder 31; 33, but at least over the width B of the printing plate 36; 37, and in their respective shafts 41; 43 and 42, respectively; 44, a printing plate 36; 37 preferably completely, that is to record their length L after. The shafts 41; 43 and 42, respectively; 44 are z. In a housing, the housing having an opening o38; o39, wherein the opening o38; o39 each parallel to the bale of the respective forme cylinder 31; 33 is alignable. Through the respective opening o38; o39 is a printing plate 36; 37, the forme cylinder 31; 33 can be fed or from this into the slot 41; 43 insertable. For this purpose, the openings 038; o39 the printing form magazines 38; 39 with respect to an opening 09 in the form of cylinders 31; 33 at a much smaller distance a38; a39 to the forme cylinder 31; 33 introduced as the length L of the printing plates 36; 37 is. Advantageously, distances a38; a39 between 2% and at most 50% of the length L of the printing plates 36; 37, in particular short distances a38; a39 to 10% of the length L. It is advantageous to arrange at least the printing forme magazine 39 arranged above the paper web 46 so that this printing forme magazine 39 moves from a rest position above the printing unit to the forme cylinder 33 into a working position z. B. approached or can be pivoted. Due to the movable arrangement of the printing forme magazines 38; 39 results in better accessibility to the printing z. B. to carry out the work required there, z. B. Maintenance work. In the working position, the shafts 41; 43 and 42, respectively; 44 of the printing form magazines 38; 39, but at least the storage positions of the printing plates 36; 37, preferably horizontally or slightly inclined, preferably at less than 15 ° with respect to the horizontal H, the openings o38; o39 the printing form MagaΣine 38; 39 advantageously to one of the openings 09 in that form of cylinder 31; 33, with which the respective printing form MagaΣin 38; 39 Σcooperates. 2004-02-19

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A movably arranged printing form magaΣin 38; 39 is in its working position in front of a Formzylinder 31; 33 at its distance a38; a39 and its orientation to the forme cylinder 31; 33 fixed by a lock 48 (FIG. 5). The lock 48 may, for. B. done by a KegelbolΣen, the Σ. B. Beäug on the forme cylinder 31; 33 is stationary and in an opening in the housing of the printing forme magazine 38; 39 engages and a to the forme cylinder 31; 33 z. B. pivoted-up printing plate magazine 38; 39 with its openings o38; o39 with respect to the bale of the forme cylinder 31; 33 Σentriert. It is advantageous, the forme cylinder 31; 33 page register in a predefined position Σu bring him Σ. Zeroing, for example, the page register Σu before it Σu an exchange of a printing plate 36; 37 between the forme cylinder 31; 33 and the printing form magazine 38; 39 is coming. Alternatively to the setting of the forme cylinder 31; 33 can also be the printing form magazine 38; 39 laterally relative to the forme cylinder 31; 33 are brought into a predefined position, so that the exchange of a printing plate 36; 37 between the printing form magazine 38; 39 and the forme cylinder 31; 33 can be targeted and without lateral displacement.

It is advantageous to arrange an articulated, preferably pivotable guide plate 49 close to the forme cylinder 33 in front of the opening of the printing forme magazine 39 which can be directed onto the forme cylinder 33 (FIG. 5), with which a trailing end released from an opening 09 in the forme cylinder 33 is obtained At the end 04 of a printing forme 37, directed in the direction of the slot 42 for receiving the printing form 37 to be removed. In particular, an erroneous access to the shaft 44 is obstructed with the guide plate 49 for a printing plate 37 to be removed from the form cylinder 33, in which at least one new printing plate 37 is provided or at least ready to be provided. Likewise, the attachment of a guide plate 49, which is not shown in FIG. 5 for the sake of clarity, may also be advantageous at the printing forme magazine 38 arranged below the paper web 46 and cooperating with the forme cylinder 31.

Another embodiment of a printing press with printing forme magazines results in conjunction with a printing machine, for. B. a multicolor W1.1987PGT 2004-02-19

18

Offset printing machine whose printing units are preferably arranged in bridge construction or a compact eight-way construction, ie a low in construction height printing machine with eight pressure points, as it is exemplified in FIG. 36, in at least one frame 97 on a foundation 96 on top of each other. A printing material 46, preferably a paper web 46, is in this case fed to the printing press and passed vertically through the printing units. In FIG. 36, for example, four successive printing units in the direction of transport of the paper web 46 are shown, which for the right and left of the paper web 46 each have a transfer cylinder 32; 34 with a form cylinder 31; 33, wherein in a printing unit on the paper web 46 opposite transfer cylinder 32; 34 roll on each other. The paper web 46 is z. B. introduced by means of a first printing unit arranged first paper guide roller 92 to the first printing unit and derived by means of a fourth printing unit arranged second paper guide roller 93 from the fourth printing unit. Each form cylinder 31; 33 is associated with at least one inking 94, the details of which will not be discussed here. Each form cylinder 31; 33 is a printing form magazine 38; 39 Σgeordnet, each preferably two shafts 41; 42; 43; 44 has. As in the embodiment previously described in connection with FIG. 5, here too each printing form MagaΣin 38; 39, but at least its storage position for a printing form 36 to be stored; 37, in the working position vorzusugsweise substantially horiΣontal or only with a slight inclination of less than 15 ° Σum Formzylinder 31; 33 aligned. In the working position of the printing form MagaΣins 38; 39 is at least one printing plate 36; 37 between the shafts 41; 42; 43; 44 and the forme cylinder 31; 33 interchangeable, either by a no longer required to execute a print job 36; 37 from the forme cylinder 31; 33 removed and into the shaft 41; Introduced 42 or a new to execute the print job printing plate 36; 37 from the shaft 43; 44 brought out and on the forme cylinder 31; 33 is mounted. The structural features of the printing form magazines 38; 39 may correspond to those of the embodiment described above in connection with FIG. 5 in this embodiment. It is advantageous if the implementation, in particular the completion of a printing form change is monitored by sensors. Likewise, the printing form magazines 2004-02-19

19

38; 39 in conjunction with the form of cylinders 31; 33 controllable such that preferably from a printing press associated control station from selectively a printing plate change can be initiated. Because the printing form magazines 38; 39 during an ongoing production of the printing press can be prepared for a printing plate change, the standstill of the printing units requiring setup time is reduced to an extremely short period of z. B. less than two minutes, preferably less than ninety seconds, for a complete change of all printing plates 36; 37 arranged in this printing press units. Depending on the design of the printing units z. B. ninety-six printing plates 36; 37 at the same time in use. Such a rapid printing plate change even with a larger number of printing plates 36; 37 greatly increases the economics of the press because of its extremely short downtime.

Further details regarding a method and a device for carrying out the method will now be explained by way of example with reference to FIGS. 6 to 35. Fig. 6 Σeigt Fig. 6 a forme cylinder 33 with two circumferentially offset by 180 ° channels 08 and two circumferentially successively arranged printing plates 37, wherein the right angle beveled suspension legs 14 at the trailing in the direction of production P of the forme cylinder 33 end 04 each printing plate 37 each of an arranged in the channel 08, by a spring element 22 pressurized holding means 21 is held on a wall 19, wherein the wall 19 extends from a rear edge 17 of the channel 08 opening opening 09 to the channel 08 out, wherein the holding means 21 by the operation a the spring element 22 counteracting pneumatic actuator 23 can be solved. At the extending from the front edge 16 of the same opening 09 to the channel 08 toward wall 18 of the acute-angled bent suspension arm 13 is applied form-fitting manner at the leading end 03 of the other along the circumference of the forme cylinder 33 arranged printing form 37. For details of the mounting of the printing plates, reference is made to FIG. 2.

FIG. 6 also shows a pressing element 24 which can be actuated by pneumatic actuation on the forme cylinder 33 in the form of a pressure roller 24 or pressure roller 24. W1.1987PGT 2004-02-19

20

Similarly, close to the forme cylinder 33 is a parallel to its axial direction pivotally mounted alignment device 51 with two diametrically arranged, laterally acting on a printing plate 37, wing-shaped stops 52; 53 provided, wherein the alignment device 51 each with one of their stops 52; 53, a printing plate 37 to be mounted temporarily fixed during its feeding to the forme cylinder 33. The stops 52; 53 z. B. each formed as a lateral guide plate, wherein the stops 52; 53 z. B. on a pivotable traverse, z. B. a square tube are arranged. The stops 52; 53 differ z. B. in their position based on the axial direction of the forme cylinder 33, so that z. B. for a printing plate 37 simple width of the stop 52 and for a printing plate 37 in the panoramic size of the stopper 53 is brought by a corresponding pivoting of the alignment device 51 is used. The stops 52; 53 may be axially adjustable to the forme cylinder 33 for the required width of the printing plate 37.

FIG. 6 also shows further details of the printing form maga Σin 39. The embodiment shown in FIGS. 6 to 35 is based on a variant for the printing forme magazine 39, in which an upper shaft 44 for providing a printing forme 37 to be mounted on the forme cylinder 33 as an independent structural unit independently of a lower shaft 42 for receiving a from Form cylinder 33 removed print form 37 is operable. Both shafts 42; 44 can be used as individually and independently usable and thus independently functional units. This application is of interest if z. B. only the feed of the forme cylinder 33 is to be automated with new printing plates 37, whereas the decrease of used printing plates 37 is performed by an operator. If both shafts 42; 44 are formed in the printing forme magazine 39, results in a fully automatic printing form changer. Both shafts 42; 44 each have all necessary for storing and conveying of printing plates 37 devices and are preferably constructed very compact. In particular, they have their capacity to absorb at least Σ two printing plates 37 a small overall height. The height is z. B. less than 150 mm, preferably less than 100 mm. 2004-02-19

21

In the embodiment shown in FIGS. 6 to 35, the shaft 44 is arranged horizontally and aligned tangentially to the. As a result, the force FG exerted on the printing forme 37 is used in the best possible way to support the functions described below. In the shaft 44 is a support 54 on which a on the FormΣylinder 33 Σu mounted first printing plate 37 with its folded Einhänbringeln 13; 14 can be set up or stored. A stored on the pad 54 printing form 37 is located there z. B. with their entire extended length L on. The pad 54 is preferably not the entire surface, but in the form of parallel strips 54 or slides 54 formed. The suspension leg 14 at the trailing end 04 of the first printing plate 37 is located in the shaft 44 on the side remote from the forme cylinder 33 on a preferably vertical stop 56, the stop 56 of a conveyor 57 linear and parallel to the support 54 in the direction of opening o39 the printing forme magazine 39 is movable in order to convey this first printing forme 37 out of the shaft 44 by a translatory movement and preferably without deformation until the suspension leg 13 can reach the slot-shaped opening 09 of the forme cylinder 33 at the leading end 03 of this first printing forme 37. The stopper 56 thus serves in the slot 44 for the first printing plate 37 as an abutment position and at the same time has the function of a slider 56. If this first printing plate 37 has at the trailing leg 14 at its trailing end 04 at least one register punching, the stop 56 z. B. advantageously also as a perpendicular to the support 54 standing, connected to the conveyor 57 register pin 56 may be formed so that with the application of the first printing plate 37 on the stop 56 for them a Vorregisterung takes place with respect to their side register. The conveyor 57 is z. B. as a belt drive 57 or as a linear drive 57, preferably as a pneumatic linear actuator 57, in particular as a rodless, double-acting linear actuator 57 is formed.

In the shaft 44 is a holder 58, in particular printing form holder 58 for holding at least a second on the forme cylinder 33 to be mounted printing plate 37. As shown in Fig. 13, the second printing plate 37 from the printing form holder 58 above the support 54, ie at a distance a54 above the edition 54 z. B. held by that 2004-02-19

22

the printing form holder 58, for example, on the side facing away from the FormΣylinder 33 side parallel to the support 54 movable piston 59 or slide 59, at the end of a holding element 61, z. B. L-shaped angle 61, is arranged, wherein the second printing plate 37 above the support 54 between the angle 61 of the extended slider 59 and in the region of the opening o39 of the printing forme magazine 39 arranged further holding element 62, z. B. a rigidly arranged stop 62 is clamped. The distance a54 in this case has a value which is preferably between twice and four times the length 114 of the Einhänlegeels 14 at the trailing end 04 of the second printing plate 37. The clamping of the second printing forme 37 takes place in that a clear distance a58 between the angle 61 of the extended slider 59 and the stop 62 is set shorter than the extended length L of the second printing forme 37. The stop 62 in the region of the opening o39 of the printing forme magazine 39 preferably has a chamfer 63 on which the suspension leg 13 can be supported on the leading end 03 of the second printing plate 37, wherein the chamfer 63 of the stopper 62 and the L-shaped angle 61 at which the Einhängeschenke] 14 at the trailing end 04 of the Σweiten printing form 37 gestütΣt, Σugewandt each other. Since the second printing forme 37 is flexible, in particular along its length L, it bulges in its state between the angle 61 and the stop 62. The slider 59 of the printing plate holder 58 is preferably linearly movable parallel to the support 54 and preferably has two stable operating positions, namely a stable operating position in the retracted, the second printing plate 37 releasing state and in the extended, ie the second printing plate 37 clamping state. In a variant of the printing form holder 58, the arrangement of the movable slide 59 and rigid stopper 62 are interchanged, so that the slider 59 is in the region of the opening o39 of the printing forme magazine 39 and the stop 62 on the side remote from the forme cylinder 33 side. As an alternative, the angle 61 or the stop 62 can also be arranged to be pivotable about a pivot axis oriented parallel to the width B of the printing forme 37. A clamped between the angle 61 and the stop 62 printing plate 37 is located at its upper or first storage position, while a stored on the pad 54 2004-02-19

23

Printing form 37 occupies a lower, second storage position in this state, wherein the printing plate 37 is temporarily stored in the second storage position before their transport to the forme cylinder 33. By an operation, preferably by a remote from, z. B. from a press belonging to the control unit operation, the printing plate 37 changes within the duct 44 from its upper, first spoke position to its lower, second storage position. Printing forms 37 stored in the first storage position and in the second storage position are spaced apart, e.g. B. along its length L with the distance a54, so they do not touch each other and therefore can not damage.

Another embodiment of the printing form holder 58, which advantageously allows a particularly low overall height for the shaft 44, provides that the second printing forme 37 above the support 54 extending in a single plane in the axial direction of the form cylinder 33 with at least one retaining element 64 to hold an upper spoke position, wherein the holding member 64 z. B. as a guide rail 64, preferably as two mutually parallel guide rails 64, is formed (FIGS. 7 to 9), wherein the guide rails 64, the second located in the shaft 44 printing plate 37 at its two longitudinal sides along Σum at least a portion of its length L. hold in the upper storage position. The design of the printing forme holder 58 with guide rails 64 presupposes that the suspension legs 13; 14 at the ends 03; 04 of the second printing forme 37 do not extend over the full width B of the printing forme 37, as they do not approach the longitudinal sides of the printing forme 37. The longitudinal sides of the printing plate 37 thus form in the area of the support surface 02 of the printing plate 37 a projection with respect to the Einhänbringeln 13; 14. This supernatant is necessary to make the printing plate 37 in the guide rails 64 feasible Σu. The holding element 64, in particular each guide rail 64, z. B. from a U-shaped, each one of the longitudinal sides of the printing plate 37 with a certain play encompassing strap, in which the second printing forme 37 is inserted from the side remote from the form cylinder 33 side. The second printing plate 37 is thus held by the guide rails 64, preferably in a narrow area of its side, the holder in particular as a vertical support and thus 2004-02-19

24

acts as a support against the gravitational force FG acting on the printing form 37. The guide rails 64 are preferably made of a dimensionally stable material such as metal or plastic.

In order to deposit a second printing forme 37 held on the support 54 by the guide rails 64, at least one of the guide rails 64 is movable in the direction of the width B of the second printing forme 37. Preferably, however, both guide rails 64 along the width B of the second printing plate 37 are movable in opposite directions, so they at least briefly remove each other and their distance from each other such that they no longer support the longitudinal sides of the printing plate 37 vertically, whereby the second printing plate 37 due to at its attacking gravity FG between the guide rails 64 passes through the support 54. If the holding element 64 in a first operating state, the second printing forme 37 z. B. holds by an electrical or magnetic force in the upper spoke position, the holding member 64 preferably changes remotely from its first operating state to a second operating state, wherein the second operating state causes the holding member 64 that the printing plate 37 and the holding member 64 from each other and the printing forme 37 upon release from the retaining element 64 in the shaft 44 by a free fall and thus alone by the force acting on her gravity FG in the preferably immediately vertically below the upper storage position lying storage position changes. The second printing plate 37 is held in the lower and also in the upper storage position in the shaft 44 at an inclination of less than 15 °, preferably horizontally. At least the guide rails 64 designed as a support bearing for the second printing forme 37 have in their longitudinal extent only this slight inclination or a horizontal course.

A release of the second printing forme 37 from the laterally engaging guide rails 64 is preferably supported by a stop 67 standing perpendicular to the support surface 02 of the second printing forme 37, which is preferably arranged rigidly in the slot 44, preferably on both longitudinal sides of the second printing forme 37 such stop 67 is arranged so that during a along the 2004-02-19

25

Width B of the second printing form 37 directed, opposite movement of the pressure plate 37 holding guide rails 64 this printing form 37 remains stable in position in the plane defined by the bearing surface 02 of the printing plate 37 level by the stops 67 arranged on both sides. The stops 67 strip the printing plate 37 from the mutually removing guide rails 64 by the printing plate 37 abuts against the stops 67, at the same time the printing plate 37 by the movement of the guide rails 64, the vertical support is withdrawn. The release of the second printing plate 37 is preferably carried out by a z. B. controllable by the press belonging to the control station drive 69, the drive 69 acts on the guide rails 64 and moves them along a travel s68.

If several printing plates 37 are arranged next to each other on the forme cylinder 33 in the axial direction thereof and a plurality of printing plates 37 are arranged next to one another in the shaft 44 in the axial direction of the forme cylinder 33, it is advantageous for the guide rails 64 which act on adjacent second printing plates 37 to be in the printing forme magazine 39 over the Pad 54 in two different planes, that is to be arranged vertically offset from one another, wherein in the axial direction of the forme cylinder 33 successive planes are preferably arranged alternately offset. Due to the staggered arrangement of the planes forming the first storage position of the printing plates 37, a distance a67 between side-by-side in the axial direction of the forme cylinder 33, ie adjacent printing forms 37, can be kept as low as possible. The distance a67 preferably corresponds in terms of its value to a distance which is juxtaposed on the forme cylinder 33 in its axial direction, ie, adjacent pressure forms 37. From in the axial direction of the forme cylinder 33 juxtaposed planes, ie in each case from a first Speicheφosition, placed on the support 54 and thus placed in their second storage position printing plates 37 can with the conveyor 57 to the forme cylinder 33 either individually or vorzusugsweise gleichzuseitig together Σugeführt, the latter approach for a quick change of printing plates 37 on the forme cylinder 33 is advantageous. In the axial direction of the forme cylinder 33 stored in different juxtaposed planes printing plates 37 can simultaneously 2004-02-19

26

or at least in rapid succession to their respective second storage position. The form cylinder 33 at the same time jointly supplied printing plates 37 are arranged on the forme cylinder 33 in the axial direction side by side,

In the example shown in FIG. 8, four second printing plates 37 are arranged side by side in each case in their first storage position in the axial direction of the forme cylinder 33, each of these printing plates 37 being held in a guide rail 64 at their respective longitudinal sides. The vertical VersatΣ the printing plates 37 is only a few millimeters, z. B. 4 mm to 6 mm, and corresponds approximately to the overall height of the guide rails 64, vorzuschangsweise their simple to double height. The movement of the guide rails 64 along the width B of the second printing form 37 is z. B. by a linear displacement of the guide rails 64; However, it can also be performed by a pivoting movement of the guide rails 64, wherein the guide rails 64 are pivotable about a pivot axis, wherein the pivot axis parallel to the supported by the guide rails 64 side of the printing plate 37. Thus, a guide rail 64 Σ. B. attached to at least one pivot arm 68, the z. B. in the plane spanned by the bearing surface 02 of the second printing plate 37 plane is pivotally, which is indicated in Fig. 9 by a directional arrow. The pivot arm 68, one end of which is connected to the guide rail 64 and the other end in the shaft 44 is preferably fixedly mounted, z. B. acting as a laterally on the guide rail 64 Federele nent 68, z. B. may be formed as a leaf spring 68, wherein the guide arm 64 connected to the pivot arm 68 by the drive 69, z. B. by a controllable, in particular remotely controllable magnet 69, in a second printing forme 37 holding or one of this printing plate 37 releasing operating position is moved. The travel s68, which a movable guide rail 64 performs along the width B of the second printing plate 37, is in the range of a few millimeters, Σ. For example, between 2 mm and 10 mm, preferably at 4 mm. Preferably, a stop 67 is also provided in this embodiment, to which the printing plate 37 abuts with its supported by the guide rail 64 side, while the guide rail 64 withdraws the support by their movement of the printing plate 37. Two in the axial direction of the 2004-02-19

27

Form cylinder 33 adjacent printing plates 37 can strike on opposite sides of the same stop 67. During the change from the upper spoke position to the lower storage position, the printing plate 37 can also slide vertically downwards along one of its sides on the stop 67, so that the printing plate 37 released from the upper storage position reaches the lower spoke position in a guided movement. The stopper 67 then has the function of a preferably up to the support 54 reaching side guide for a memory position changing their Speicheφosition.

In general terms, a method of storing at least Σ two from the same cylinder 06; 31; 33 of a printing machine successively discharged Aufzuschügen 01; 36; 37 the following steps: a) a previously from the cylinder 06; 31; 33 discharged elevator 01; 36; 37 is conveyed from a first to an Σ-wide storage position, b) the elevator 01 which has been discharged from the Σubefore; 36; 37 subsequently discharged elevator 01; 36; 37 is at the first storage position of the previously discharged elevator 01; 36; 37 stored, c) the previously discharged elevator 01; 36; 37 in its second spoke position and the subsequently removed elevator 01; 36; 37 in the first spoke position of the previously discharged elevator 01; 36; 37 are stored in a distance orthogonal along their length L, d) the elevators 01; 36; 37 are stored in their respective support surface 02 at least largely overlapping, preferably at least 80% overlapping or stored in their complete or almost complete coverage. The previously discharged elevator 01; 36; 37 and the subsequently discharged elevator 01; 36; 37 can thereby be stored vertically along their length L or else spaced apart horizontally. VorΣugsweise the Σuvor previously discharged elevator 01; 36; 37 transported by a linear movement, in particular by a both memory positions directly and directly interconnecting linear movement orthogonal to its support surface 02 or by a movement of its trailing end 04, in its second storage position, which will be explained in more detail below.

It is advantageous, in particular in the shaft 44, for example on the slider 56 for a 2004-02-19

28

on the support 54 resting first printing form 37 or at the L-shaped angle 61 for a second printing plate 37 to install a code reader 71 which reads a preferably each attached to the suspension leg 14 at the trailing end 04 of each printing plate 37 coding, d. H. detects a feature for identifying a printing form to check in a preferably carried out electronically in a control unit with a provided for the FormΣylinder 33, stored in the control unit allocation plan Σu whether the introduced into the slot 44 printing forms 37 the occupancy of the intended Correspond to printing and whether the intended occupancy introduced into the slot 44 printing plates 37 are also in the correct order. Thus, even before the assembly of the printing plates 37 on the forme cylinder 33, a corresponding message, eg. For example, an error message, d. H. a message warning the operator of a faulty installation, generated and z. B. deposited on a printing unit associated control station and displayed there or on the printing unit.

The coding may preferably be in addition to a human-readable code Σ. B. be designed as a barcode. The code reader 71 is thus arranged in the shaft 44 vorzuugsweise at its end facing away from the FormΣylinder 33, wherein a reading direction of the code reader 71 either parallel Σur length L of the printing plate 37 or preferably parallel Σur width B of the printing plate 37 is directed. In a preferred embodiment of the code reader 71 is preferably arranged with a linear guide movable in or on the shaft 44 or there is provided a preferably inclined by 45 ° to the width B of the printing plate 37 movable mirror, a detection or read signal from an the printing form 37 attached coding to a arranged on one side of the shaft 44 code reader 71 deflects, so that only one single code reader 71 is required for reading the attached to the shafts 44 stored in the printing plates 37 coding. By using only a single code reader 71 for a plurality of stored printing plates 37, significant costs can be saved. In the case of the use of only a single code reader 71, the code reader 71 or the mirror is either parallel to the width B of the printing forme 37, ie in the axial direction of the forme cylinder 33, preferably along several shafts 44 2004-02-19

29

and / or along the stacked in one of the wells 44 printing plates 37 vertically movable so that the code reader 71 or the mirror detects the coding of stored in different memory positions printing forms 37. Either the code reader 71 or at least one other sensor 91 may be used to monitor and / or to check whether an intended printing plate change has been carried out successfully. Errors such as a double assignment or a bad allocation, d. H. the assembly of a printing plate 37 at an inaccurate place, are then avoidable, but at least detectable by a preferably deposited on the control room of the printing machine message before a greater damage occurs.

6, a further shaft 42 is shown, which serves the recording of the forme cylinder 33 remote printing plates 37. This slot 42 has a z. B. inclined support 72, which as well as the support 54 in the shaft 44 Σur providing on the FormΣylinder 33 Σu mounting pressure plates 37 is preferably not formed over the entire surface, but in the form of parallel strips 72 or slides 72, wherein the inclination the support 72 preferably widens the shaft 42 on the side facing away from the forme cylinder 33, whereby this shaft 42 becomes more accessible to an operator on the side remote from the forme cylinder 33, which facilitates the removal of printing plates 37 deposited in the shaft 42. The support 72 in the shaft 42 is Σ. B. inclined to a HoriΣontalen H by an inclination angle δ, wherein the inclination angle δ Σ. For example, between 5 ° and 15 °, preferably about 7 °. In the example shown in Fig. 6, the chute 42 for receiving printing forme 37 removed from the forme cylinder 33 is located below a chute 44 for providing printing forme 37 to be mounted on the forme cylinder 33, which is a preferred, but not a mandatory arrangement. The shafts 42; 44 may also be layered in reverse order or may be separate.

A preferred embodiment of the shaft 42 provides that in the shaft 42 in the axial direction of the forme cylinder 33 next to each other at least two printing plates 37 can be stored. This embodiment allows a particularly fast removal of printing plates 37, in particular when on the forme cylinder 33 in its axial direction 2004-02-19

30

at least two printing plates 37 can be arranged, because a plurality of printing plates 37 can be removed simultaneously from the form cylinder 33. When on the plate cylinder 33 in its axial direction Σ. B. at least four printing plates 37 can be arranged, it is advantageous for stability reasons, Σ. B. two shafts 42 in the axial direction of the forme cylinder 33 next to each other. Each defined by the width B of a printing plate 37 storage space in one of these shafts 42 is then formed so that there at least as many printing plates 37 can be stored as printing plates 37 can be arranged on the FormΣyiinder 33 along its circumference, wherein the storage of the printing plates 37 takes place on each SpeicheφlatΣ one above the other in a stack. It can be provided that in each of the shafts 42 up to ten, but at least up to eight printing plates 37 can be stored so that discharged from the forme cylinder 33 printing plates 37 can be collected in the shafts 42 and the shafts 42 is not necessarily after each change of the printing plates 37 must be cleared by the operator. Regardless of the number of side-by-side shafts 42, the storage spaces in the axial direction of the form cylinder 33 have the same close proximity to each other as the printing forms 37 are arranged on the form cylinder 33.

At the side facing the forme cylinder 33, the shaft 42 has a guide element 73 arranged close to the lateral surface 07 of the forme cylinder 33, at least in the operating state employed on the forme cylinder 33, for example to accommodate the printing forme 37 removed from the forme cylinder 33. B. in the form of a baffle 73j of a wedge 73 or a rolling element 73, z. B. a roller 73 is formed and has the task of leading the trailing end 04 of a forme cylinder 33 to be removed from the printing plate 37 into the slot 42. A distance a73 of the guide element 73 from the lateral surface 07 of the forme cylinder 33 is preferably not much greater than the length 114 of the folded Einhänbringels 14 at the trailing end 04 of the printing plate 37, in particular, the distance a73 of the guide member 73 has a value between the simple and the double Length 114 of the Einhänlegeels 14 on (Fig. 6). Since a printing form 37 removing the form cylinder 33 Σu touches the guide element 73 with its print image side, it is in contact with a rotatably mounted rolling element 2004-02-19

31

73 is gentler on its surface than sliding over a planar rigid wedge 73. This aspect is of particular importance when the printing form 37 is to be used again and thus damage to its printed image side by scratching or grinding marks is to be avoided. On the guide member 73, a sensor 91 may be mounted, either in contact with the forme cylinder 33 to be removed from the printing plate 37 or advantageously contactless, z. B. inductive, checks whether the suspension leg 14 has actually solved at the trailing end 04 of the forme cylinder 33 to be removed from the printing forme 37 after actuation of the arranged in the channel 08 of the forme cylinder 33 holding means 21. With its test, the sensor 91 sends a signal Σ. B. to the press belonging to the control room. On the basis of the signal emitted by the sensor 91, a decision is made as to whether the process of discharging a printing form 37 removing form cylinder 33 Σu can be continued or whether measures must be taken to eliminate a malfunction. On the guide member 73, preferably a plurality of sensors 91 are provided in the axial direction of the forme cylinder 33, for. B. four or six, namely in each case at least one sensor 91 for each on the forme cylinder 33 in the axial direction next to each other can be arranged printing form 37th

In a preferred exemplary embodiment, the suspension leg 14 at the trailing end 04 of the printing forme 37 to be removed from the forme cylinder 33 preferably passes on a first ramp 74 spaced from the guide element 73 before reaching the support 72 in the shaft 42, wherein the first ramp 74 initially rises in the direction of the support 72 and, after a summit point 76, drops towards the support 72. The first ramp 74 is preferably rigidly connected to the support 72. In the course of the introduction of the forme cylinder 33 to be removed from the printing forme 37 into the slot 42 hits her suspension leg 14 at the trailing end 04 on a second ramp 77, the flank after its peak point 78, ie thus on the side facing away from the forme cylinder 33, vorΣugsweise abruptly drops abruptly towards the rest 72. In the direction in which the printing forme 37 is introduced into the slot 42, a small distance a77 (FIG. 14) behind the apex 78 has a rigid connection to the second ramp 77 2004-02-19

32

Stop 79 arranged on the suspension leg 14 abuts the trailing end 04 of the printing plate 37. The distance a77 in this case has a value of a few millimeters, preferably a value of less than the simple length 114, in particular less than half the length 114 of the folded Einhängebelt 14 at the trailing end 04 of the printing plate 37. If the suspension leg 14 at the trailing end 04 of the printing forme 37 strikes against the stop 79, it engages behind the Σ-wide ramp 77 in advance, in that the suspension leg 14 engages in the intermediate space formed by the distance a77. The second ramp 77 and the stop 79 connected to it are linearly movable by a conveyor 81 and parallel to the support 72, in order to convey the printing form 37 to be removed from the forme cylinder 33 completely into the duct 42. The conveying device 81, which together with the steep flank on the second ramp 77 for the folded suspension leg 14 at the trailing end 04 of the printing forme 37 forms a driver device which promotes the printing forme 37 into the shaft 42, is Σ. B. as a belt drive 81 or as a linear drive 81, preferably as a pneumatic linear drive 81, in particular as a rodless, double-acting linear actuator 81 is formed. Both the first ramp 74 and the second ramp 77 consist z. B. not from full-surface planes, but from several parallel as the tines of a comb arranged guide rails. The second ramp 77 may be Σ. B. be formed from one or more correspondingly bent metal strip.

On the side facing away from the forme cylinder 33, a lifter 82, in particular a printing form lifter 82 is arranged in the shaft 42, wherein the printing form lifter 82, for example, a preferably vertically Σur edition 72 movable piston 83, at the end of a z. B. L-shaped, in particular U-shaped lifting arm 84 is arranged, wherein the bent suspension leg 14 is set up at the trailing end 04 of the printing plate 37 on the lifting arm 84 or set encompassing. The printing form lifter 82 preferably has two stable operating positions, namely a stable operating position with retracted piston 83, in which the lifting arm 84 is below the level defined by the support 72 2004-02-19

33

and another stable operating position with the piston 83 extended, in which the lifting arm 84 lifts the printing forme 37 removed from the FormΣy 33 from the support 72. The printing forme lifter 82 executes a stroke s82 which is greater than the length 114 of the Preferably, the stroke s82 has a value between the single and the double length 114 of the Einhangeschenkels 14 on the printing form lifter 82 thus lifts a form cylinder 33 remote printing plate 37 from a preliminary first storage position into a final second location

Above the printing form lifter 82, in particular above its lifting arm 84, a securing element 86 which is preferably pivotable about a pivot axis extending substantially parallel to the width B of the printing form 37 is arranged, Σ B in the form of a flat-shaped flap 86, the lower edge of which is at a distance a86 from the Lifting arm 84 is located, wherein the distance a86 voräsugsweise is smaller than the length 114 of the folded Einhangeschenkels 14 at the trailing end 04 of the printing plate 37 In FIG. 6, a directional arrow indicates the pivoting of the securing element 86 The securing element 86 secures one of the printing form lifter 82 raised printing plate 37 against accidental slippage in the shaft 42 or removal from the shaft 42 So an operator has the fuse element 86 first to pivot before the raised printing plate 37 can be removed from the shaft 42

A further exemplary embodiment of assemblies arranged in the shaft 42 is shown in FIGS. 10 to 12. This exemplary embodiment provides a stop 79, which is preferably rigidly arranged in the middle region of the support 72, wherein a pressure-molding lifter 82 connected to a conveyor device 72 which can be moved linearly along the support 72 be bent Einhangeschenkel 14 at the trailing end 04 of a forme cylinder 33 Σu removing printing form 37 lifts over the stop 79 and the printing plate 37 pulls on its folded Einhangeschenkel 14 preferably in their elevated position of the printing form lifter 82 to the side facing away from the forme cylinder 33 end of the shaft 42 The Fordereinrichtung 81 and the 2004-02-19

34

Printing form lifter 82 may be positively coupled such that the printing form lifter 82 then lifts the folded suspension leg 14 of the printing form 37 as soon as the conveying device 81 performs a movement in the direction away from the forme cylinder 33. Furthermore, a further printing form lifter 87 is provided between the stop 79 and the Formzyiinder 33 facing the end of the shaft 42, which raises the leading end 03 of a form cylinder 33 remote, inserted into the slot 42 printing form 37 so far that another from the forme cylinder 33rd to be removed printing form 37 between the support 72 and the raised printing plate 37 into the slot 42 is inserted.

In particular, methods for changing printing plates 37 on a forme cylinder 33 will now be explained with reference to FIGS. 13 to 35. It is assumed that two printing plates 37 are arranged in the upper shaft 44 for providing new printing forms 37 to be mounted on the forme cylinder 33, that two printing plates 37 are placed on the forme cylinder 33 along its circumference and that the lower shaft 42 is for receiving the Form cylinder 33 removed printing forms 37 empty, d. H. is free of printing plates 37.

The forme cylinder 33 rotates the opening 09 of a channel 08, in which the suspension leg 14 is held by a holding means 21 at the trailing end 04 of the printing forme 37 removing the form cylinder 33, into a first position extending below the lower edge Shaft 42 belonging guide member 73 is located. The controllable, preferably pneumatically actuable pressure element 24 is set against the form cylinder 33 (FIG. 13).

The pneumatically actuatable actuating means 23 pneumatically actuated pivots the holding means 21 against the force of a spring element 22, whereby the suspension leg 14 snaps on the trailing end 04 of the printing plate 37 due to its elastic residual stress from the opening 09 and strikes the guide element 73. The employed pressure element 24 secures the printing forme 37 against a further release from the lateral surface 07 of the forme cylinder 33 (FIG. 14). 2004-02-19

35

The forme cylinder 33 rotates counter to its production direction P and pushes the trailing end 04 of the printing forme 37 into the shaft 42. When the printing forme 37 is inserted into the shaft 42, the suspension leg 14 slides along the trailing end 04 of this printing forme 37 along the guide element 73 then adjusts to the first ramp 74 belonging to the shaft 42. The suspension leg 14 slides up the ramp 74 to above its summit point 76 and then reaches the support 72. While the pressing member 24 is still employed on the forme cylinder 33, the printing plate 37 is further rotated into the shaft 42 by the rotation of the forme cylinder 33 against its production direction P. inserted. In this case, their suspension legs 14 at the trailing end 04 also overcomes the second ramp 77 connected to the conveying device 81 and abuts against the stop 79 connected to the second ramp 77 (FIG. 15).

The pressing element 24 is turned off by the forme cylinder 33. By the impact of Einhänlegeels 14 of the trailing end 04 on the stop 79, the preferably form-fitting at the front edge 16 of the opening 09 hinged folded suspension legs 13 at the leading end 03 of the printing forme 37 from the opening 09. The pressure plate 37 is now with its leading End 03 free on the lateral surface 07 of the forme cylinder 33 on. The forme cylinder 33 has performed less than half a turn from loosening the suspension leg 14 at the trailing end 04 until now. The folded suspension leg 14 at the trailing end 04 has hooked between the second ramp 77 and the stop 79. The conveying device 81 connected to the second ramp 77 and the stop 79 can now completely draw the printing forme 37 into the slot 42 (FIG. 16).

The pressure plate 37 is removed from the forme cylinder 33 and is in its length L in the shaft 42. Its suspension leg 14 at the trailing end 04 is located on the summit point 78 of the second ramp 77, while their leading end 03 on the summit point 76 of the first ramp 74th rests, whereby at least the suspension leg 13 preferably hangs freely at the leading end 03. The storage of the printing plate 37 in 2004-02-19

36

Shaft 42 is thus preferably carried out by a support at two points, namely at the summit points 76; 78 of the two ramps 74; 77 (Figure 17).

The z. B. pneumatically actuated Druckformheber 82 lifts the retracted into the slot 42 printing plate 37 at its trailing end 04 to briefly under the securing element 86, wherein the suspension leg 14 rests on the associated with the printing forme lifter 82 lifting arm 84 (Fig. 18).

While a first to be mounted on the forme cylinder 33 printing forme 37 with its folded Einhänbringeln 13; 14 rests on the support 54 in the upper shaft 44, the forme cylinder 33 continues to rotate counter to its production direction P in a second position until the opening 09, from which the suspension leg 13 at the leading end 03 of the previously removed from the forme cylinder 33 printing plate 37 has been solved has passed a contact point 88 of the pressing element 24 applied to the forme cylinder 33 and the rear edge 1 of the opening 09 in the direction of production P of the forme cylinder 33 is at a distance a88 from the contact point 88, the distance a88 being in the range of a few millimeters, preferably is less than 30 mm, and thus corresponds to an arc length of less than a thirtieth part of the circumference of the forme cylinder 33. The first position of the forme cylinder 33, ie removal of a printing plate 37 arranged thereon, is generally not identical to its second position for receiving a new printing forme 37. The pressing element 24 is preferably attached to the forme cylinder 33, while the opening 09 is for the contact point 88 happened or after passing the contact point 88. The alignment device 51, which is arranged close to the forme cylinder 33, pivots with its previously preferably horizontally oriented diametrical stops 52; 53 preferably at 90 ° in a vertical position, so that a matched to the width B of the forme cylinder 33 to be mounted on the printing plate 37 stop 52; 53 is immersed in a transport plane defined by the support 54 in the shaft 44 for the printing forme 37 mounted on the forme cylinder 33 and the printing forme 37 to be mounted on the forme cylinder 33 during its transport out of the shaft 44 against the stop 52; 53 page register moderately aligned to the forme cylinder 33 (Fig. 19). 2004-02-19

37

The first printing forme 37 to be mounted on the forme cylinder 33 rests with its suspension leg 14 at its trailing end 04 on the stop 56 connected to a conveying device 57. The conveyor 57 is gesetΣt in operation, so that the stop 56 in a vor¬ tangentially directed to the FormΣylinder 33 movement the first printing plate 37 far enough from the shaft 44, until its leading end 03 employed to the forme cylinder 33 Pressing element 24 touches and bent at this leading end 03 suspension leg 13 between the back in the production direction P of the forme cylinder 33 edge 17 of the opening 09 and the contact point 88 of the pressure element 24 on the forme cylinder 33 (Fig. 20).

The form cylinder 33 changes its direction of rotation and begins to rotate in its production direction P, whereby the hanging leg 13 set up on the forme cylinder 33 slips into the opening 09 at the leading end 03 of the printing forme 37 and preferably forms a positive fit at the front edge 16 Opening 09 hooked (Fig. 21).

As a result of the further rotation of the forme cylinder 33 in its production direction P, the printing forme 37 suspended with its suspension leg 13 in the opening 09 is conveyed completely out of the shaft 44 and drawn onto the forme cylinder 33. During the drawing, the printing plate 37 is aufgewalΣt on the form cylinder 33 by the Anrückelement 24 employed on the forme cylinder 33. After half a revolution of the forme cylinder 33 in its production direction P, the pressing element 24 presses the folded suspension leg 14 at the trailing end 04 of the printing forme 37 into the opening 09. The retaining means 21 in the channel 08 belonging to this opening 09 has been released and is then inserted into the one Operating position brought in which it introduced into the opening 09 suspension leg 14 at the trailing end 04 of the printing forme 37 z. B. fixed by a clamp. The conveyor 57 drives the stop 56 connected to it again into its end position on the side remote from the forme cylinder 33 in the shaft 44 (FIG. 22). 2004-02-19

38

The pressure element 24 is turned off by the forme cylinder 33 and the alignment device 51 pivots with its diametrical stops 52; 53 vorzuschugsweise in a horizontal position. With the method steps described so far, a change of a first printing plate 37 on the forme cylinder 33 is completed by a used printing plate 37 removed and a new printing plate 37 was mounted. This change of a printing plate 37 can be completed with the described device in a very short time, preferably in less than a minute. The forme cylinder 33 is then ready for production again (FIG. 23).

The change of another, z. B. on the forme cylinder 33 along its circumference arranged second printing form 37 begins with the fact that preferably during the previous ongoing production of an operator, the new second printing plate 37 is inserted into the slot 44. In this case, the second printing form 37 is held by a controllable, preferably pneumatically controllable printing form holder 58 on the support 54 by the printing forme 37 z. B. either at their ends 03; 04 between two stops 61; 62 is clamped, wherein at least one of the stops 61; 62 is movable, or by the printing plate 37 is inserted at its longitudinal sides in guide rails 64, wherein at least one of the guide rails 64 along the width B of the printing plate 37 is movable. When the printing form holder 58 releases the printing plate 37 by its holding the printing plate 37 elements, for. B. the stops 61; 62 or the guide rails 64, their distance, z. B. a58, each other at least kurzΣeitig zoom, the printing forme 37 falls on the support 54 and is there with their Einhänbringeln 13; 14 (FIG. 24).

To another, z. B. the second printing form 37 from the forme cylinder 33, rotates the forme cylinder 33 according to the method explained for Fig. 13, the opening 09 of the channel 08, in which the suspension leg 14 at the trailing end 04 of the forme cylinder 33 to be removed second printing form 37 of a holding means 21 is held, in the first position, which is located below the Σum lower shaft 42 belonging guide member 73. The controllable, preferably pneumatic 2004-02-19

39

actuatable pressing element 24 is set against the forme cylinder 33 (FIG. 25).

According to the method explained with reference to FIG. 14, the preferably pneumatically actuable actuating means 23 pivots the holding means 21 against the force of the spring element 22, whereby the suspension leg 14 on the trailing end 04 of the second printing form 37 snaps out of the opening 09 due to its elastic residual stress and on the guide element 73 strikes. The employed pressing element 24 secures the second printing forme 37 against a further release from the lateral surface 07 of the forme cylinder 33 (FIG. 26).

The forme cylinder 33 rotates counter to its production direction P and thereby pushes the trailing end 04 of the second printing forme 37 into the shaft 42. When the printing forme 37 is introduced into the shaft 42, the suspension leg 14 slides on the trailing end 04 of this printing forme 37 on the guide element 73 along and then turns on the Σum bay 42 belonging first ramp 74. The suspension leg 14 of the second printing form 37 slides up the ramp 74, wherein it slides under the resting in the shaft 42, resting on the summit point 76 of the first ramp 74 first printing plate 37 and the summit point 76 overhanging, directed to the FormΣylinder 33 leading end Lifting end 03, while the suspension leg 14 of the second printing form 37 exceeds the summit point 76 of the first ramp 74 and then reaches the support 72. While the pressing member 24 is still employed on the forme cylinder 33, the second printing forme 37 is pushed further into the slot 42 by the rotation of the forme cylinder 33 counter to its production direction P. In this case, the suspension leg 13 slides at the leading end 03 of resting in the shaft 42 first printing plate 37 on the printed image side of the shaft 42 promoted second printing plate 37. In the course of the suspension leg 14 overcomes at the trailing end 04 of the second printing plate 37auchauch with the conveyor 81st connected second ramp 77 and abuts against the stop connected to the second ramp 77 79 (Figure 27),

The pressing element 24 is turned off by the forme cylinder 33. By the shock of the 2004-02-19

40

Einhängebelt 14 of the trailing end 04 on the stop 79 solves the preferably positive fit at the front edge 16 of the opening 09 hinged folded suspension legs 13 at the leading end 03 of the second printing form 37 from the opening 09. The suspension leg 13 with its leading end 03 is now free on the lateral surface 07 of the forme cylinder 33. The forme cylinder 33 has again performed less than half a turn from loosening the Einhäπbringels 14 at the trailing end 04 to jetΣt. The folded suspension leg 14 at the trailing end 04 hooks Σwischen the Σweiten ramp 77 and the stop 79 a. The lifting arm 84 of the printing form lifter 82 lowers, as a result of which the first printing plate 37 resting on its trailing end 04 and resting in the shaft 42 is deposited on a web 89 formed on the stop 79, wherein the web 89 is perpendicular to the rest 72 Height h89, the value of which is greater than the length 114 of the folded Einhängebelt 14 at the trailing end 04 of the second printing form 37. The height h89 preferably has a value between the single and double length 114 of the folded Einhänbringels 14 at the trailing end 04 of the second printing form 37 (FIG. 28).

The conveying device 81 connected to the second ramp 77 and the stop 79 now pulls the second printing plate 37 completely into the slot 42, with the first and second printing plates 37 being arranged in the slot 42 of their length L one above the other. The conveyor 81 together with the second ramp 77 and the stop 79 for the folded suspension leg 14 at the trailing end 04 of the inserted into the slot 42 printing plate 37 a driving device (Fig. 29).

The printing form lifter 82 now lifts with its lifting arm 84, preferably the trailing end 04 of both arranged in the shaft 42 printing plates 37 to the fuse element 86 at. The leading end 03 of the second printing plate 37 is located with a Σum FormΣylinder 33 directed overhang on the summit point 76 of the first ramp 74 and the folded suspension leg 13 at the leading end 03 of the first printing plate 37 is on the leading end 03 of the second printing form 37 (Fig. 30). 2004-02-19

41

To mount the ready in the upper shaft 44 second printing plate 37 of the forme cylinder 33 continues to rotate counter to its production direction P back to the second position until the opening 09, released from the suspension leg 13 at the leading end 03 of the previously removed from the forme cylinder 33 second printing plate 37 has passed the contact point 88 of the impression cylinder 24 applied to the forme cylinder 33, and the rear edge 17 of the opening 09 in the production direction P of the forme cylinder 33 is at a distance a88 from the contact point 88, the distance a88 being in the range of a few millimeters , preferably less than 30 mm, and thus corresponds to an arc length of less than a thirtieth part of the circumference of the forme cylinder 33 (FIG. 19). The pressing member 24 is preferably made to the forme cylinder 33, while the opening 09 passes the contact point 88 or after it has passed the contact point 88. The alignment device 51, which is arranged close to the forme cylinder 33, pivots with its previously preferably horizontally oriented diametrical stops 52; 53 preferably at 90 ° in a vertical position, so that on the width B of the on the forme cylinder 33 Σu mounted second printing plate 37 matched stop 52; 53 is inserted into a transport plane defined by the support 54 in the shaft 44 for the second printing forme 37 mounted on the forme cylinder 33, and the second printing forme 37 mounted on the forme cylinder 33 during transport out of the shaft 44 on the stop 52; 53 page register moderately aligned to the forme cylinder 33 (Fig. 31).

The second printing forme 37 to be mounted on the form cylinder 33 is in contact with its suspension leg 14 at its trailing end 04 on the stop 56 connected to the conveying device 57. In accordance with the method explained with reference to FIG. 20, the conveyor 57 is put into operation, so that the stop 56 conveys the second printing forme 37 out of the shaft 44 in a direction that is preferably directed tangentially onto the forme cylinder 33, until its leading end 03 moves to the front Form cylinder 33 Employed Andrückelement 24 touches and bent at this leading end 03 suspension legs 13 between the back in the production direction P of the forme cylinder 33 edge 17 of the opening 09 and the 2004-02-19

42

Aufstandsspunkt 88 of the pressure element 24 on the forme cylinder 33 stands up (Fig. 32).

In accordance with the method explained with reference to FIG. 21, the forme cylinder 33 changes its direction of rotation and begins to rotate in its production direction P, as a result of which the suspension leg 13 erected on the forme cylinder 33 slips into the opening 09 at the leading end 03 of the second printing forme 37 and preferably has a positive fit hooked on the front edge 16 of the opening 09 (Fig. 33).

As a result of the further rotation of the forme cylinder 33 in its production direction P, the second printing forme 37, which is hooked into the opening 09 with its suspension leg 13, is completely conveyed out of the shaft 44 and drawn onto the mold cylinder 33. During winding, the second printing plate 37 is rolled onto the forme cylinder 33 by the pressing element 24 placed against the forme cylinder 33. After half a revolution of the forme cylinder 33 in its direction of production P, the pressing member 24 presses the folded suspension leg 14 at the trailing end 04 of the second printing form 37 in the opening 09. The holding means 21 in the channel 08 associated with this opening 09 was released and is then in brought that operating position in which it introduced into the opening 09 suspension leg 14 at the trailing end 04 of the second printing forme 37 z. B. fixed by a clamp. The conveyor 57 drives the stop 56 connected to it again into its end position on the side remote from the forme cylinder 33 in the shaft 44. The upper shaft 44 is now empty, whereas two used printing plates 37 are deposited in the lower shaft 42 (FIG. 34).

The pressure element 24 is turned off by the forme cylinder 33 and the alignment device 51 pivots with its diametrical stops 52; 53 again preferably in a horizontal position. With the process steps described so far, the change of a second printing plate 37 on the forme cylinder 33 is completed by a used Σweiten printing form 37 Σung removed and a new second printing plate 37 was raised. The forme cylinder 33 is ready for production again. This change can be complete with the device described in less than a minute 2004-02-19

43

be done. The replacement of a first and a second printing plate 37 can thus be completed in less than two minutes, preferably in less than nine seconds (FIG. 35).

2004-02-19

44

BeΣugszeichenliste

01 Elevator, printing form

02 contact surface (01)

03 end, leading (01)

04 end, trailing (01)

05 -

06 cylinder; FormΣylinder

07 lateral surface (06)

08 channel

09 opening (08)

10 -

11 bending edge (13)

12 bending edge (14)

13 suspension legs

14 suspension legs

15 -

16 edge, front, first (09)

17 edge, rear, second (09)

18 wall

19 wall

20 -

21 holding means

22 spring element

23 adjusting means

24 support element; pressing element; pressure roller; rolling element; Roller; role

25 -

26 edge

27 contact line

28 position fixation

29 touch point 2004-02-19

45

30

31 cylinders, Formzyiinder, first

32 cylinders, blanket cylinder, first

33 cylinder, forme cylinder, second

34 cylinders, blanket cylinder, second 35

36 elevator; printing form

37 elevator; printing form

38 printing forme magazine

39 Printing forme magazine 40

41 shaft

42 shaft

43 shaft

44 shaft 45

46 substrate; paper web

47 Partition wall

48 locking

49 baffle 50

51 alignment device

52 stop (51)

53 stop (51)

54 edition (44); slide rail; Ledge 55

56 stop; slide; register pin

57 conveyor; Conveyor; Belt drive; linear actuator

58 holders; Printing plate holder

59 pistons; Slider 60 2004-02-19

46

61 angle, stop; holding member

62 stop; holding member

63 bevel (62)

64 guide rail; retaining element

65 -

66 brackets (64)

67 stop

68 swivel arm; Spring element; leaf spring

69 drive; magnet

70 -

71 code readers

72 edition; Afford; slides

73 guide element; baffle; Wedge; rolling element; role

74 ramp, first

75 -

76 peak (74)

77 ramp, second

78 peak (76)

79 stop

80 -

81 conveyor; Conveyor; Belt drive; linear actuator

82 lifters; Printing forme lifter

83 pistons

84 lifting arm (82)

85 -

86 securing element; flap

87 lifters; Printing forme lifter

88 contact point

89 Bridge (79)

90 -

91 sensor 2004-02-19

47

92 paper guide roller, first

93 paper guide roller, second

94 inking unit

95 -

96 foundation

97 frame

FR radial force

FG gravity

MR return torque

B width; dimension

D material thickness

H horizontal

Length; dimension

M mounting direction

P production direction

S slot width

T09 tangent

T29 tangent

a09 Distance a37 Distance a38 Distance a39 Distance a54 Distance a58 Distance a67 Distance a73 Distance 2004-02-19

48

a77 Distance a86 Distance a88 Distance h89 Height

113 length

114 length

038 opening

039 opening

S68 travel

S82 hub

α1 opening angle α2 opening angle

P1 opening angle ß2 opening angle r angle) δ inclination angle

Claims

2004-02-19 claims

1. Device for storing an elevator (01; 36; 37) to be fed to a cylinder (06; 31; 33) of a printing press with a length (L), wherein a holder (58) in a first operating state the elevator (01; 36; 37) holds in a first storage position, the holder (58) and the elevator (01; 36; 37) detaching from one another when the holder (58) changes to a second operating state, characterized in that the elevator (01 ; 36; 37) changes with the release from the holder (58) into a second storage position vertically spaced along its length (L) to the first storage position.

2. Device according to claim 1, characterized in that the elevator (01; 36; 37) to be fed is stored in the second storage position before it is fed to the cylinder (06; 31; 33).

3. Device according to claim 1, characterized in that the lift (01; 36; 37) falls from its first storage position when it is released from the holder (58) due to the gravity (FG) acting on it.

4. The device according to claim 1, characterized gekenn∑eichnet that the Auf∑ug (01; 36; 37) consists of an elastically deformable material and inherently has an elastically resilient property.

5. The device according to claim 1, characterized in that the elevator (01; 36; 37) rests on a support (54) in its second storage position.

6. The device according to claim 5, characterized in that the lift (01; 36; 37) rests on its support (54) in its ∑wide storage position according to its elongated length (L). 2004-02-19

50

7. The device according to claim 6, characterized in that a conveyor device (57) leads the elevator (01; 36; 37) lying on the support (54) in a translational movement to the cylinder (06; 31; 33).

8. The device according to claim 6, characterized gekenn∑eichnet that a slide (56) on the support (54) lying Auf∑ug (01; 36; 37) leads the cylinder (06; 31; 33).

9. The device according to claim 1, characterized in that at least two elevators (01; 36; 37) can be arranged on the cylinder (06; 31; 33) along its circumference.

10. The device according to claim 1, characterized in that on the cylinder (06; 31; 33) in its axial direction at least two elevators (01; 36; 37) can be arranged.

11. The device according to claim 1, characterized in that on the cylinder (06; 31; 33) in its axial direction at least four elevators (01; 36; 37) can be arranged.

12. The device according to claim 1, characterized in that a shaft (43; 44) is provided for storing at least two elevators (01; 36; 37) to be fed to the cylinder (06; 31; 33).

13. The apparatus according to claim 12, characterized in that at least as many elevators (01; 36; 37) can be stored in the shaft (43; 44) as elevators (01; 36; 37) on the cylinder (06; 31; 33 ) can be arranged along its circumference.

2004-02-19

51

14. The apparatus according to claim 12, characterized in that in the shaft (43; 44) at least two axially adjacent lifts (01; 36; 37) can be stored in the axial direction of the cylinder (06; 31; 33).

15. The apparatus according to claim 12, characterized in that at least two shafts (43; 44) in the axial direction of the cylinder (06; 31; 33) are arranged side by side.

16. The apparatus according to claim 12, characterized in that in the shaft (43; 44) in the axial direction of the cylinder (06; 31; 33) side by side at least two elevators (01; 36; 37) can be stored.

17. The apparatus according to claim 1, characterized in that in each case one elevator (01; 36; 37) is stored in the first spoke position and in the second memory position, the stored elevators (01; 36; 37) not touching one another.

18. The apparatus according to claim 1, characterized in that the elevator (01; 36; 37) with respect to the production direction (P) of the cylinder (06; 31; 33) has a leading end (03) and a trailing end (04) , ∑at least one trailing leg (14) with a length (114) is formed at the trailing end (04).

19. The apparatus according to claim 18, characterized in that the hanging leg (14) at the trailing end (04) with respect to the extended length (L) of the lift (01; 36; 37) with an opening angle (β1) between 30 ° and is bent 140 °.

2004-02-19

52

20. The apparatus according to claim 18, characterized in that the hanging leg (14) at the trailing end (04) relative to the extended length (L) of the elevator (01; 36; 37) with an opening angle (β1) between 80 ° and 135 ° is folded.

21. The apparatus according to claim 18, characterized gekenn∑eichnet that the hanging leg (14) at the trailing end (04) with respect to the extended length (L) of the lift (01; 36; 37) is bent at right angles.

22. The apparatus according to claim 18, characterized in that the elevator (01; 36; 37) with its hanging leg (14) at the trailing end (04) stands on the support (54).

23. The device according to claim 18, characterized in that the first storage position and the ∑wide storage position have a distance (a54), the distance (a54) ∑ between twice and four times the length (114) of the hanging leg (14) at the trailing end (04) of the lift (01; 36; 37).

24. The device according to claim 18, characterized in that a hanging leg (13) bent at the leading end (03) is folded to the elongated length (L) of the lift (01; 36; 37) at an acute opening angle (α1).

25. The device according to claim 12, characterized in that a further shaft (41; 42) is provided which stores at least one elevator (01; 36; 37) to be removed from the cylinder (06; 31; 33).

2004-02-19

53

26. The device according to claim 12 or 25, characterized in that at least one of the shafts (41; 42; 43; 44) receives the elevators (01; 36; 37) in their length (L) completely.

27. The device according to claim 1, characterized in that the cylinder (06; 31; 33) is designed as a forme cylinder (06; 31; 33).

28. The device according to claim 1, characterized in that the Auf∑ug (01; 36; 37) is designed as a printing form (01; 36; 37).

29. The device according to claim 6, characterized in that the support (54) during the feeding of the lift (01; 36; 37) around the cylinder (06; 31; 33) has an inclination of less than the horizontal 15 °.

30. The device according to claim 6, characterized in that the support (54) during the feeding of the lift (01; 36; 37) is aligned horizontally around the cylinder (06; 31; 33).

31. The device according to claim 6, characterized in that the support (54) is provided in the shaft (43; 44).

32. Device according to claim 6, characterized in that a transport plane for the elevator (01; 36; 37) to be fed to the cylinder (06; 31; 33) is directed parallel to the support (54).

33. Device according to claim 32, characterized in that the transport plane is oriented essentially orthogonally to gravity (FG).

2004-02-19

54

34. Device according to claim 1, characterized in that the second storage position for the elevator (01; 36; 37) is arranged perpendicularly below its first storage position.

35. Device according to claim 6, characterized in that the support (54) is designed in the form of parallel strips (54) or slide rails (54).

36. Device according to claim 6, characterized in that the support (54) is aligned tangentially to the cylinder (06; 31; 33).

37. Device according to claim 1, characterized in that the holder (58) is provided in the shaft (43; 44).

38. Device according to claim 1, characterized in that the holder (58) for holding the elevator (01; 36; 37) has holding elements (61; 62; 64).

39. Device according to claim 38, characterized in that the elevator (01; 36; 37) stored in the first storage position is clamped between holding elements (61; 62; 64).

40. Device according to claim 38, characterized in that the holding elements (61; 62; 64) have a clear distance (a58) from one another which is shorter than the elongated length (L) of the elevator (01; 36; 37).

41. Device according to claim 38, characterized in that at least one of the holding elements (61; 62; 64) is movable.

42. Device according to claim 38, characterized in that at least one of the holding elements (61; 62; 64) is linearly movable. 2004-02-19

55

43. Device according to claim 38, characterized in that at least one of the holding elements (61; 62; 64) can be moved parallel to the second storage position.

44. Device according to claim 38, characterized in that at least one of the holding elements (61; 62; 64) is movable or pivotable.

45. Device according to claim 38, characterized in that two opposing holding elements (61; 62; 64) holding the elevator (01; 36; 37) are movable.

46. Device according to claim 41, characterized in that a moving holding element (61; 62; 64) increases the distance (a58) between opposing holding elements (61; 62; 64) at least briefly.

47. Device according to claim 41, characterized in that a moving holding element (61; 62; 64) increases the distance (a58) between opposing holding elements (61; 62; 64) above the value that that between the holding elements (61 ; 62; 64) arranged elevator (01; 36; 37) with its ∑u distance (a58) rectified dimension (L; B).

48. Device according to claim 41, characterized in that the movement of the holding elements (61; 62; 64) enables the second elevator (01; 36; 37) to be placed on the support (54).

49. Device according to claim 41, characterized in that the holding element (61; 62; 64) can be moved by a pneumatic actuation.

2004-02-19

56

50. Device according to claim 38, characterized in that the holding elements (61; 62) consist of two mutually opposing stops (61; 62).

51. Device according to claim 38, characterized in that the holding elements (61; 62; 64) surround the elevator (01; 36; 37) along its length (L).

52. Device according to claim 38, characterized in that the holding elements (61; 62; 64) each consist of a guide rail (64).

53. Device according to claim 52, characterized in that the elevator (01; 36; 37) can be inserted between the guide rails (64).

54. Device according to claim 52, characterized in that the guide rails (64) enclose the width (B) of the elevator (01; 36; 37).

55. Device according to claim 38, characterized in that at least one holding element (61; 62; 64) holds a hanging leg (13; 14) formed on the elevator (01; 36; 37) in a form-fitting manner.

56. Device according to claim 12, characterized in that at least one code reader (71) is provided in the shaft (43; 44), the code reader (71) having a feature attached to the hoist (01; 36; 37) Identification captured.

57. Device according to claim 8, characterized in that the slide (56) is designed as a register pin (56).

58. Device according to claim 7, characterized in that the conveying device (57) is designed as a pneumatic linear drive (57).

2004-02-19

57

59. Device according to claim 7, characterized in that the conveying device (57) is designed as a rodless linear drive (57).

60. Device according to claim 7, characterized in that the conveying device (57) is designed as a double-acting linear drive (57).

61. Device according to claim 1, characterized in that the printing press has at least two printing units.

62. Device according to claim 61, characterized in that a printing material (46) passed through the printing units runs vertically through the printing units.

63. Device. according to claim 1, characterized gekenn∑eichnet that the printing press is designed as a multi-color offset printing press.

64. Device according to claim 1, characterized in that the lift (01; 36; 37) to be supplied is stored in its ∑wide storage position ∑at least with its leading end (03) inside the shaft (43; 44).

65. Device according to claim 1, characterized in that the first storage position and the ∑wide storage position of the elevator (01; 36; 37) to be supplied are provided within the same shaft (43; 44).

66. Method for feeding lifts (01; 36; 37) to a cylinder (06; 31, 33) of a printing press, the lifts (01; 36; 37) to be fed to the cylinder (06; 31; 33) being of their length (L) after being stored without mutual contact, the elevators (01; 36; 37) to be fed sequentially to the cylinder (06; 31; 33) being stored one above the other in storage positions vertically spaced apart along their length (L), characterized in that at least 2004-02-19

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one of the elevators (01; 36; 37) is fed to the cylinder (06; 31; 33) only after changing from its vertically upper to a vertically lower storage position.

67. The method according to claim 66, characterized in that the lowermost elevator (01; 36; 37) is fed to the cylinder (06; 31; 33) in a transport plane oriented essentially orthogonally to gravity (FG).

68. The method according to claim 66, characterized in that the lowest-arranged elevator (01; 36; 37) by means of a thrust force acting on the trailing end (04) of the elevator (01; 36; 37) engages the cylinder (06; 31; 33) is supplied.

69. The method according to claim 66, characterized in that a plurality of superposed elevators (01; 36; 37) are arranged on the cylinder (06; 31; 33) along its circumference.

70. The method according to claim 66, characterized in that in the axial direction of the cylinder (06; 31; 33) a plurality of stacks of lifts (01; 36; 37) arranged one above the other are arranged side by side.

71. The method according to claim 70, characterized in that a plurality of elevators (01; 36; 37) arranged side by side in the axial direction of the cylinder (06; 31; 33) are fed to the cylinder (06; 31; 33) simultaneously.

72. The method according to claim 66, characterized in that the elevator (01; 36; 37) to be supplied to the cylinder (06; 31; 33) is conveyed in a linear movement to the cylinder (06; 31; 33).

W1.1987PGT 2004-02-19

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73. The method according to claim 66, characterized in that the elevator (01; 36; 37) to be fed to the cylinder (06; 31; 33) conveys to the cylinder (06; 31; 33) in its elongated length (L) becomes.

74. The method according to claim 66, characterized in that the elevator (01; 36; 37) to be fed to the cylinder (06; 31; 33) is set up with its hanging leg (14) on a support (54).

75. The method according to claim 66, characterized in that the elevator (01; 36; 37) to be supplied to the cylinder (06; 31; 33) with a slide (56) engaging on its suspension leg (14) around the cylinder (06; 31 ; 33) is pushed.