DE102022124615A1 - Printing plate logistics system with several plate setters and a transport system and method for operating a printing plate logistics system - Google Patents

Abstract

The invention relates to a printing plate logistics system with several plate imagesetters and a transport system that connects the plate imagesetters to one or more printing machines, the transport system comprising a rail network comprising rail segments and a plurality of transport carriages that can be moved on the rail network, each transport carriage being designed to transport a plate and several sections of the rail network are designed as buffer stores for storing a plurality of transport carriages independently of the storage of transport carriages in at least one or all other buffer stores and a buffer store is assigned to each platesetter. The invention also relates to a method for operating a printing plate logistics system with several platesetters and a transport system.

Description

The invention relates to a printing plate logistics system with a plurality of plate exposers and a transport system that connects the plate exposers to one or more printing machines, as well as a method for operating a printing plate logistics system with a plurality of plate exposers and a transport system that connects the plate exposers to one or more printing machines.

From the DE 43 09 658 C1 a printing plate transport device is known which can be moved on guide rails above the printing press. The printing plate transport device takes the printing plate from a centrally arranged magazine and transports it above the printing press to the relevant plate cylinder.

From the EP 1 193 057 A1 a printing machine with printing plate exposure is known. It is proposed here to assign a transport system to a printing machine containing a printing plate imaging device for transporting the imaged printing plate to the individual printing units. The transport system grips the end of the printing plate with vertically movable gripping elements, then the printing plate is moved in a horizontal direction to a printing plate changing device, whereby the printing plate position during transport can be vertical or horizontal. During transport, the printing plates are rotated in order to bring them into the necessary feeding position for the printing plate changing devices.

From the DE 10 2006 032 204 B3 a method for providing at least one printing forme at its mounting location on a forme cylinder of a rotary printing press is known. It is proposed here to transport a printing form in a transport module of a transport device from the imaging station to its respective installation location on the forme cylinder. The transport module is transported to the desired printing unit on the operating side of the printing press.

From the DE 38 71 940 T2 a transfer system for lithographic printing plates is known. A horizontal conveyor is proposed herein which conveys lithographic printing plates to a place of use, the lithographic plates being picked up by hooks of the transfer system on the angled leading edge and fed to an overhead conveyor.

From the DE 103 38 373 A1 a device for changing printing plates is known. The printing press has several printing units arranged one behind the other, each printing unit being equipped with a plate changing device. A guide rail is arranged parallel to the printing units and is assigned a movable handling device. The handling device removes a designated printing plate from a printing plate depot and transports it to the plate changing device of the desired printing unit.

Static storage devices can be used to store printing plates. Such a storage device is in the EP 2 179 950 A1 described.

It is also known that printing plates are temporarily stored after exposure in static storage in the form of plate carriages, as in the DE 10 2018 220 640 A1 disclosed.

The DE 10 2019 133 353 A1 discloses a printing plate logistics system with a plate supply, a plate disposal and a transport system that connects the plate supply and the plate disposal with several printing machines. The transport system includes a rail network comprising rail segments and a plurality of transport carriages that can be moved on the rail network and a disk storage unit. The plate supply is formed by a single platesetter.

The disadvantage of the known solutions for storing multiple sets of printing plates is that the memories require a lot of space and incur high costs. In addition, the memory contents must be managed.

The invention is therefore based on the object of creating a printing plate logistics system and a method for operating a printing plate logistics system, which reduce the effort required to store printing plates when supplying printing machines with printing plates.

The object is achieved according to the invention by the features of claims 1 and 7.

The invention has the advantage that flexibility in the production of printed products is increased. There is no need to set up a double plate control without compromising process reliability.

Embodiments of the invention are shown in the drawings and are described in more detail below.

• 1 eine schematische Darstellung eines Druckplattenlogistiksystems mit mehreren Plattenbelichtern, einem Transportsystem und mehrere Druckmaschinen;
• 2 eine schematische Darstellung eines Transportschlittens in Draufsicht;
• 3 eine schematische Darstellung eines Transportschlittens in Seitenansicht;
• 4 eine perspektivische Darstellung einer Variante eines Pufferspeichers des Druckplattenlogistiksystems;
• 5 eine perspektivische Darstellung einer weiteren Variante eines Pufferspeichers des Druckplattenlogistiksystems.

Show it:

• 1 a schematic representation of a printing plate logistics system with multiple plates imagesetters, a transport system and several printing machines;
• 2 a schematic representation of a transport carriage in a top view;
• 3 a schematic representation of a transport carriage in a side view;
• 4 a perspective view of a variant of a buffer storage of the printing plate logistics system;
• 5 a perspective view of another variant of a buffer storage of the printing plate logistics system.

In the 1 A printing plate logistics system with two platesetters 1 and a transport system 2, which connects the platesetters 1 to two printing machines 4, is shown. The number of platesetters 1 and printing machines 4 is an example and also represents a larger number of platesetters 1 and/or printing machines 4.

The plurality of printing machines 4 are preferably designed as sheet-fed rotary printing machines, in particular as sheet-fed offset printing machines.

The printing machines 4 are preferably constructed in an aggregate design. They consist in particular of a feeder, a system, several printing units arranged one behind the other in a row and a delivery. The sheet conveying direction corresponds to the direction from the feeder to the delivery. The printing machines 4 preferably have identical printing units and a turning device arranged after the fourth printing unit and are to be understood as an example of printing machines 4 of any configuration. The printing units each preferably contain an impression cylinder, a transfer drum, a plate cylinder and a blanket cylinder. An unspecified inking unit or inking and dampening unit is assigned to the plate cylinder. The plate cylinder is covered with a printing plate, hereinafter referred to as plate 3. The plate 3 is colored with the appropriate printing ink by the inking unit. When the plate cylinder unrolls on the blanket cylinder, the printing ink is transferred to the blanket cylinder covered with a rubber blanket in accordance with the motif. A printing gap is formed between the blanket cylinder and the impression cylinder, through which the printing material to be printed, i.e. the sheet, is conveyed. In the printing nip, the printing ink is transferred from the blanket cylinder to the sheet. In addition to the printing units, the printing machines 4 can also have further coating and/or finishing units, drying units and/or turning devices. The printing machines 4 could also be designed as web-fed rotary printing machines.

Each printing unit preferably has a preferably pivotable plate change protection on the side facing the delivery, which serves as a shaft when changing a plate in a known manner for carrying out the old printed plate 3 and for feeding the new plate 3 to be inserted. The plate change protection can be formed by an insertion shaft and an output shaft or includes an insertion shaft and an output shaft.

The feed shaft and the discharge shaft are preferably shafts arranged parallel to one another. In the feed shaft and the discharge shaft, two plates 3 can be fed in and out past one another. The plate change protection is part of the plate changing device of a printing unit. The plate changing device contains other known elements required for changing plates. In particular, the plate changing device can have a support element that is arranged in the feed shaft, wherein the support element can be moved from a support position in which the current plate 3 arranged in the feed shaft rests on the support element to a release position in which the current plate 3 no longer rests on the support element.

For a plate change, the plate cylinders are placed in a defined plate changing position. This adjusting movement of the plate cylinders can be carried out by a central drive wheel train, with the plate cylinders running in phase in a group being placed in the plate changing position at the same time. After the plate change on the corresponding plate cylinders, the other group of plate cylinders running in phase is placed in the plate changing position by the central drive wheel train, so that the plate change can also take place here. The plate cylinders can be driven by direct drives that are synchronized for printing operations. When changing a plate, all plate cylinders can be placed in the plate changing position at the same time, which means that the plate change can be carried out on all printing units at the same time.

The platesetters 1 are designed in a manner known per se and preferably produce a particularly latent printed image for a respective printing ink on coated plates 3. In the case of the latent printed image in particular, the printing areas have oleophilic properties and the non-printing areas have oleophobic properties. There is a plate conveyor section downstream of the plate imagesetters 1, which is preferably used for horizontal transport of the plates Plates 3 is formed. The plate conveyor line can have driven rollers or belts as a means of transport.

After the plate conveyor section, a transport system 2 is arranged in the transport direction 7 of the plates 3.

The transport system 2 includes a rail network 2.1 and a plurality of transport carriages 2.3 that can be moved on the rail network 2.1. Each of the transport carriages 2.3 preferably carries a code that uniquely identifies it, which can be designed as an RFID code or QR code or data matrix code or as a code that can be read based on NFC technology. Each transport carriage 2.3 preferably also includes a mechanical gripper system 2.3.1 for hanging a respective plate 3, which is preferably held in a closed position by an energy storage device.

The rail network 2.1 is formed from rail segments, with individual rail segments preferably running in particular in the area of the plate changing devices of the printing press 4. In order to enable plates 3 to be transferred to the plate changing devices of the printing presses 4, the rail segments of the rail network 2.1 in the area of the plate changing device are designed to be vertically displaceable relative to adjacent rail segments. The vertically displaceable rail segments are preferably assigned means for fixing a respective transport carriage 2.3 on the rail segment when moving the rail segment.

In the area of plate changing devices, as in 3 shown, preferably actuators 2.2 are formed, which can be selectively activated and, in the activated state, can cause an opening of the respective mechanical gripper system 2.3.1 of the respective transport carriage 2.3. A respective vertically displaceable rail segment of the rail network 2.1 is spatially assigned to an insertion shaft of the plate changing device and/or is vertically displaceable relative to it in such a way that when the rail segment is lowered, a plate 3 held in the mechanical gripper system 2.3.1 of a transport carriage 2.3 guided on the rail segment is in the Insertion shaft is inserted. In the area of the plate changing device, a stopper element 13 can also be formed, which is between an active position, in which it blocks the displaceable rail segment for the passage of the chassis of a transport carriage 2.3, and a passive position, in which it blocks the displaceable rail segment for the passage of the chassis of a Transport carriage 2.3 releases, can be moved.

To transport the transport carriages 2.3 on the rail network 2.1, individual rail segments or areas of the rail network 2.1 can be arranged inclined with respect to the horizontal, so that a respective transport carriage 2.3 located on the individual rail segments or areas of the rail network 2.1 moves solely due to downhill force.

Another possibility for driving the transport carriage 2.3 along the rail network 2.1 is to arrange permanently rotating brushes. The brushes engage in recesses formed on the transport carriage 2.3.

The brushes can also be arranged on a rail segment that is inclined relative to the horizontal and drive respective transport carriages 2.3 against the downhill force. With such a design, respective transport carriages 2.3 can be transported to a higher level in a comparatively short section of the rail network 2.1 in order to move again solely by downhill force in the subsequent sections of the rail network 2.1.

Another option for driving the transport carriage 2.3 along the rail network 2.1, which is based on the use of toothed segments and toothed chains or gears, is used in particular at those locations on the rail network 2.1 where a respective transport carriage 2.3 is to be positioned comparatively precisely. Accordingly, each transport carriage 2.3 can be assigned a toothed segment and transfer areas for positioning the respective transport carriage 2.3 can be formed along the rail network 2.1, in each of which a single motor-driven gear or a toothed chain is arranged, the gear or the toothed chain being exclusively connected to the transport carriage 2.3 assigned toothed segment combs when a respective transport carriage 2.3 is in the transfer area.

A plate lift 5 can be arranged to transfer the plates 3 from the plate conveyor line to the transport system 2, in particular to the transport carriage 2.3. The plate lift 5 can also be formed by a manipulator.

The manipulator is designed in particular to remove plates 3 from the plate conveyor line and to transfer the plates 3 to a respective transport carriage 2.3 of the transport system 2. The manipulator preferably includes a gripper and multi-axis robotics. The gripper is preferably designed as a suction gripper. The manipulator is preferably one Camera that can be moved together with the manipulator for detecting marks on a plate 3 to be detected or detected by the manipulator.

A transport carriage 2.3 is described below as representative of a large number of transport carriages 2.3 that the transport system 2 has.

The transport carriage 2.3 preferably comprises a traverse in which two bearing points designed in particular as pivot bearings are provided. Each of the pivot bearings can be connected via a further bearing and a bridge to guide elements 2.3.4, which are designed in particular as guide rollers 2.3.4. The further bearing has, in particular, a rotational degree of freedom and enables a rotational movement between each bridge and the traverse. The further bearing can also be designed in a different way, in particular as a ball joint. The guide rollers 2.3.4 run on the top of the rails of the rail network 2.1. They guide the transport carriage 2.3 on the rails of the rail network 2.1 and are rotatably mounted on the bridges. A pivot bearing, another bearing and a bridge with guide elements 2.3.4 each form a chassis. Accordingly, each transport carriage 2.3 has a first and a second chassis that guides the transport carriage 2.3 on the rail network 2.1. The first landing gear and the second landing gear are spaced apart from each other.

The traverse is connected to the gripper system 2.3.1, preferably via a carrier 2.3.1.3. The gripper system 2.3.1 comprises two gripper jaws 2.3.1.2 that interact with one another and form a clamping gap. The gripper jaws 2.3.1.2 are movable and mounted on an axis 2.3.1.1 running centrally to the transport carriage 2.3. In particular, force accumulators designed as springs can be arranged on the axis 2.3.1.1, which hold the gripper jaws 2.3.1.2 in a closed position. The gripper system 2.3.1 is closed in the basic position. At their ends facing away from the axis 2.3.1.1, the gripper jaws 2.3.1.2 can have rubber or plastic elements in order to avoid damage to the plate 3 to be transported.

At the front and rear ends of the transport carriage 2.3, viewed in the transport direction 7, a drive-on buffer 2.3.3 is arranged, which can be made of an elastic material or can include resilient elements. The transport carriage 2.3 includes an index bolt 2.3.2. The index bolt 2.3.2 is preferably assigned to the at least one transport carriage 2.3 with a longitudinal axis extending transversely to the transport direction 7. The transport direction 7 corresponds to a virtual connecting line between the guide elements 2.3.4 at the front and rear ends of the transport carriage 2.3. The transport carriage 2.3 is preferably constructed symmetrically with respect to a virtual, vertical axis running centrally between its front and rear ends.

Several sections of the rail network 2.1 are designed as buffer stores 14 for storing a plurality of transport carriages 2.3 independently of the storage of transport carriages 2.3 in at least one or all other buffer stores 14. Each platesetter 1 is assigned a buffer memory 14. The assignment of respective buffer memories 14 to respective platesetters 1 is preferably static, but can also be dynamic.

Preferably, each buffer store 14 is designed to accommodate a number of transport carriages 2.3, which corresponds to the maximum number of plates 3 that can be arranged simultaneously in the printing press 4 with the largest holding capacity of plates 3.

Each buffer store 14 can also be designed to accommodate a number of transport carriages 2.3, which is greater than the maximum number of plates that can be arranged simultaneously in the printing press with the largest holding capacity of plates.

A buffer store 14 can comprise two rail segments arranged parallel to one another, and all buffer stores 14 can also each comprise two rail segments arranged parallel to one another.

A respective buffer memory 14 is also described below as representative of other buffer memories 14. The buffer memory 14 can have a first rail switch 9.1, a switch control, a first rail segment 10.1 and a second rail segment 10.2 running next to the first.

The first rail segment 10.1 and the second rail segment 10.2 adjoin the first rail switch 9.1 on one side. A respective transport carriage 2.3 can be guided onto the first and/or the second rail segment 10.1; 10.2 depending on the position of the first rail switch 9.1. On the side of the first rail segment 10.1 and the second rail segment 10.2 facing away from the first rail switch 9.1, there is preferably a second rail switch 9.2 or a Y-shaped rail connection piece without movable elements. In other words, between the first rail switch 9.1 of the buffer storage 14 and the second rail switch 9.2 or between the first rail switch 9.1 and the Y-shaped rail connection piece, the rail network 2.1 is double-tracked and adjacent to the other side of the first or second rail switch 9.1; 9.2 or the Y-shaped rail connection piece, the rail network 2.1 is single-tracked.

The Y-shaped rail connecting piece of the buffer storage 14 guides each of one of the two rail segments 10.1; 10.2 coming undercarriage to the single-track section of the rail network 2.1 that adjoins the Y-shaped rail connecting piece.

The length of the first and second rail segments 10.1; 10.2 is preferably set such that the first and second rail segments 10.1; 10.2 can accommodate at least or exactly the majority of transport carriages 2.3, the number of which corresponds to the number of printing units of that printing press 4 of the printing plate logistics system which has the most printing units. In connection with the design of the buffer memory 14, printing units of printing machines 4 are also understood to mean coating units or primer units, provided that these are designed for the use of plates 3 which are suitable for transport through one of the transport carriages 2.3.

A bypass can be formed in parallel to all buffer stores 14 in the rail network 2.1. Preferably, the rail segments forming the bypass are arranged exclusively adjacent to one another.

Transport carriages 2.3 can be transported past the buffer stores 14 via the bypass without the transport carriages 2.3 interacting with the elements of the buffer store 14. The bypass can include a third rail switch arranged in front of the buffer storage 14 and a fourth rail switch arranged after the buffer storage 14 as well as a rail segment connecting the third and fourth rail switches.

A first drive for transport carriage 2.3 can be formed along the first rail segment 10.1 of the buffer store 14 and a second drive for transport carriage 2.3 can be formed along the second rail segment 10.2 of the buffer store 14.

The first rail segment 10.1 of the buffer store 14 and/or the second rail segment 10.2 of the buffer store 14 can be inclined relative to the horizontal.

The switch control of the buffer memory 14 is designed to control the first rail switch 9.1, such that for a plurality of transport carriages 2.3 moved along the rail network 2.1 via the first rail switch 9.1, the first chassis of the respective transport carriage 2.3 is placed on the first rail segment 10.1 and the second chassis of the respective transport carriage 2.3 is directed to the second rail segment 10.2.

Preferably, stopper elements 13 are formed on the first rail segment 10.1 and/or on the second rail segment 10.2, each of which is between an active position in which the respective stopper element 13 holds the rail segment 10.1; 10.2 blocked for the passage of the chassis of a transport carriage 2.3, and a passive position in which the respective stopper element 13 the rail segment 10.1; 10.2 for the passage of the chassis of a transport carriage 2.3 releases, can be moved. The stopper elements 13 are in particular arranged in pairs. The first rail segment 10.1 preferably has first stopper elements 13 and the second rail segment 10.2 has second stopper elements 13. The first and second stopper elements 13 are preferably arranged in areas of the first rail segment 10.1 and the second rail segment 10.2, in which they run parallel to one another. A first stopper element 13 and a second stopper element 13 can be used as a pair in association with different rail segments 10.1; 10.2 be arranged opposite each other, with each of the pairs determining a parking position for a respective transport carriage 2.3. Viewed in the longitudinal direction of the first rail segment 10.1, the first stopper elements 13 are arranged at equal distances from one another. The same applies to the second stopper elements 13, here with reference to the second rail segment 10.2. The distances between the stopper elements 13 in the longitudinal direction of the rail segments 10.1; 10.2 at least correspond to the width of the transport carriage 2.3.

Instead of the two in 1 In the buffer memory 14 shown, more than two buffer memories 14 can also be arranged next to one another and/or one behind the other when viewed in the transport direction 7. The buffer memories 14 can have the same design or different designs. The plurality of buffer stores 14 are preferably connected to one another via further rail switches directly or with the interposition of one or more devices for plate turning. The buffer stores 14 can be followed by a common section 6 in the rail network 2.1, which all trans port carriage 2.3 must pass on their way to one of the printing machines 4.

Preferably, a control device is provided which is designed to control the assignment of respective buffer memories 14 to respective platesetters 1 depending on the operating state of another buffer memory 14 or the operating states of all other buffer memories 14.

When controlling the assignment of respective buffer stores 14 to respective plate imagesetters 1, the control device can in particular take into account the loading status of another or all other buffer stores 14.

The controller can also dynamically adapt the sequence of loading and unloading of the buffer storage 14 to changing operating conditions or processing requirements of future print jobs by the printing presses 4.

A method for operating a printing plate logistics system is then described. The printing plate logistics system includes several plate setters 1 and a transport system 2, which connects the plate setsters 1 with one or more printing machines 4, the transport system 2 comprising a rail network 2.1 comprising rail segments and a plurality of transport carriages 2.3 movable on the rail network 2.1 and several sections of the rail network 2.1 are designed as a buffer memory 14 for storing a plurality of transport carriages 2.3 and each transport carriage 2.3 transports exactly one plate 3. The method for operating a printing plate logistics system is in particular using the in the 1 to 5 illustrated and described above printing plate logistics system carried out.

According to the method, all plates 3 are exposed for a respective print job and transferred to the transport carriage 2.3. All transport carriages 2.3, which transport plates 3 of this print job, are moved one after the other into a respective buffer memory 14 and stopped in the buffer memory 14. The displacement takes place until all transport carriages 2.3 with the plates 3 of this print job are arranged in the respective buffer memory 14.

Preferably, the transport carriages 2.3 with the plates 3 of a respective print job are only moved from a respective buffer store 14 to a respective printing machine after the last transport carriage 2.3 with a plate 3 of the respective print job has been stopped in the respective buffer store 14.

The plates 3 of a respective print job can be exposed by one and the same or by different plate imagesetters 1. Exposure with different platesetters 1 is particularly advantageous in cases where a very short-term and, for example, unscheduled realization of a respective print job is required. Accordingly, the plates 3 of a respective print job can be exposed, in particular alternately, by different plate imagesetters 1.

The retrieval of the transport carriages 2.3 loaded with plates 3 from the buffer stores 14 is preferably automated.

Preferably, the transport carriages 2.3 loaded with plates 3 are called up in an orderly manner according to a print job list in the control station of a printing press 4 or in an orderly manner according to a print job list in a planning system that is superior to the control stations of the printing presses 4.

Finally, the storage of plates 3 in the buffer memories 14 can be started automatically depending on an operating state of a platesetter 1 and/or depending on the operating state of a buffer memory 14.

Reference symbol list

1

Platesetter

2

Transportation system

2.1

Rail network

2.2

Actor

2.3

Transport carriage

2.3.1

Gripper system

2.3.1.1

Axis (2.3.1)

2.3.1.2

gripper jaw

2.3.1.3

carrier

2.3.2

Index bolt

2.3.3

Collision buffer

2.3.4

Leadership element, leadership role

3

plate

4

printing press

5

Plate lift

6

Section in the rail network, common

7

Transport direction

9.1

Rail switch, first

9.2

Rail switch, second

10.1

Rail segment, first

10.2

Rail segment, second

11

-

12

-

13

Stopper element

14

Buffer memory

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 4309658 C1 [0002]
• EP1193057A1 [0003]
• DE 102006032204 B3 [0004]
• DE 3871940 T2 [0005]
• DE 10338373 A1 [0006]
• EP 2179950 A1 [0007]
• DE 102018220640 A1 [0008]
• DE 102019133353 A1 [0009]

Claims (10)

Printing plate logistics system with several plate setters (1) and a transport system (2) that connects the plate setsters (1) to one or more printing machines (4), the transport system (2) comprising a rail network (2.1) comprising rail segments and a plurality of on the rail network (2.1) movable transport carriage (2.3), each transport carriage (2.3) being designed to transport a plate (3) and several sections of the rail network (2.1) as buffer storage (14) for storing a plurality of transport carriages (2.3) independently of the Storage of transport carriages (2.3) are formed in at least one or all other buffer memories (14) and each plate imagesetter (1) is assigned a buffer memory (14). printing plate logistics system Claim 1 , characterized in that each buffer store (14) is designed to accommodate a number of transport carriages (2.3) which corresponds to the maximum number of plates (3) that can be stored in the printing press (4) with the largest capacity of plates (3) at the same time can be arranged or which is larger than the maximum number of plates (3) that can be arranged simultaneously in the printing press (4) with the largest capacity of plates (3). printing plate logistics system Claim 1 or 2 , characterized in that a control device is provided which is designed to control the assignment of respective buffer memories (14) to respective platesetters (1) depending on the operating state of another or the operating states of all other buffer memories (14). printing plate logistics system Claim 1 , 2 or 3 , characterized in that a bypass is formed in the rail network (2.1) parallel to all buffer stores (14), the rail segments forming the bypass being arranged exclusively adjacent to one another. printing plate logistics system Claim 1 , 2 , 3 or 4 , characterized in that a plate lift (5) is arranged between the platesetters (1) and the buffer stores (14). printing plate logistics system Claim 1 , 2 , 3 , 4 or 5 , characterized in that each buffer store (14) comprises two rail segments arranged parallel to one another. Method for operating a printing plate logistics system with several plate imagesetters (1) and a transport system (2) that connects the plate imagesetters (1) to one or more printing machines (4), the transport system (2) comprising a rail network (2.1) comprising rail segments and a plurality of transport carriages (2.3) movable on the rail network (2.1) and several sections of the rail network (2.1) are designed as buffer storage (14) for storing a plurality of transport carriages (2.3), each transport carriage (2.3) having exactly one plate (3) transported, in particular using a printing plate logistics system Claim 1 , 2 , 3 , 4 , 5 or 6 , whereby for a respective print job all plates (3) are exposed and transferred to the transport carriage (2.3) and all transport carriages (2.3), which transport plates (3) of this print job, are successively moved into a respective buffer memory (14) and stored in the buffer memory ( 14) are stopped until all transport carriages (2.3) with the plates (3) of this print job are arranged in the respective buffer memory (14) and then transport carriages (2.3) with plates (3) of another print job are relocated to another buffer memory (14). . Procedure according to Claim 7 , characterized in that transport carriages (2.3) with the plates (3) of a respective print job are relocated from a respective buffer store (14) to a respective printing machine after the last transport carriage (2.3) with a plate (3) of the respective print job is in the respective one Buffer memory (14) has been stopped. Procedure according to Claim 7 or 8th , characterized in that the retrieval of the transport carriages (2.3) loaded with plates (3) from the buffer stores (14) is automated and sorted according to a print job list in the control center of a printing press (4) or automated and sorted according to a print job list in one of the control centers of the printing machines (4) higher-level planning system takes place. Procedure according to Claim 7 , 8th or 9 , characterized in that the storage of plates (3) in the buffer memories (14) is started automatically depending on an operating state of a platesetter (1) and/or depending on the operating state of a buffer memory (14).

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