EP1882658B1 - Method for preparing one material sheet to be pasted to another material sheet - Google Patents

Description

The invention relates to methods for preparing a second material web to be connected to a first material web according to the preamble of claim 1, 2 or 3.

By the DE 295 10 352 U1 and the US 48 12 198 In each case, a method for preparing a second material web to be joined to a first material web is known, wherein a beginning of the second material web is connected to the first material web, wherein at the beginning of the second material web at least on one of its longitudinally directed to its transport direction sides over a length be formed chamfered section, wherein at least in the edge region of the at least one chamfered portion at least parallel to the edge of the chamfer at least one stiffening band is attached.

By the EP 1 712 362 A2 a method is known for converting a web-fed printing press from an ongoing production of a first printed product to a subsequent production of a second printed product, the first printed product being produced from a web of web fed currently the first web of material and the second printed product from a web press subsequently to be supplied second web, wherein these webs differ in their respective width and / or in the grade and / or grammage of their material from one another, wherein a time for establishing a connection of the second web to the first web of material is determined by a control unit controlling at least the current production of the first printed product in which this determination takes place as a function of the production data relating to the second printed product, the production data being made available to the control unit. It is envisaged that characteristics of the second material web by reading a at this Material web attached bar code label detected with a data logically connected to the control unit bar code reader and this control unit are provided.

The EP 0 710 558 A1 describes a web-fed rotary printing machine with an adjustable reel splicer for receiving printing material webs with different widths, with pressure cylinders adjusable in a printing unit to form pressure points and with an adjustable folder, wherein the width of the roll changer, the position of the printing cylinder and components of the folder for switching the production from a first printed product to a second printed product during the machine run are adjusted automatically and coordinated with each other, the components of a folder, in particular a jaw opening and an expansion of a collecting cylinder, depending on the changed page number of the printed product are adjustable. The conversion of production is based on calculations and commands issued by the reel splitter.

By the EP 0 639 456 A1 For example, the use of a production planning system is known for automatically providing production data to a control unit that controls a production of a printed product.

By the EP 0 570 334 A1 a jaw cylinder for a printing machine is known, wherein an adjustment of a working distance of its jaws via a servomotor control in response to adjustable, the set working distance determining control variables, in particular the number of pages of the printed product and optionally the surface specific weight of the paper takes place.

By the WO 2005/077797 A2 a method for the storage of unprepared and prepared material rolls of a web-processing machine in a warehouse is known, wherein a material flow system information for forecasting consumption data for a predefined production period or predicted consumption data are supplied and wherein in a sub-process on the basis of the forecast consumption data and the current inventory, a definition of a storage strategy is carried out.

Below is assumed by a printing company, which has at least one printing press, z. Example, a web press, and a material supply system should have, the material supply system supplies the printing machine with a plurality of each formed as a substrate material webs, these webs are to be printed in the web press sequentially. For economical production, it is necessary to bring processes occurring in the printing press and the material supply system to an effective interplay.

The material webs to be printed in the printing press are each preferably designed as a paper web. Each of the material webs assigned to a specific printed product to be produced or at least a part of them is preferably wound into a roll in each case. In particular, when each of the respective material web to be produced printed product has a higher circulation, ie a larger number of copies, as z. B. in a newspaper with z. B. several thousand copies per issue is the case, are to be provided on the press for performing such a print job successively several roles and introduce into the printing process, each roll forms a partial web of the material required for the execution of the respective print job. The individual partial webs are the printing press z. B. one after the other for the continuous production of the copies of the print job corresponding print product supplied, in each case preferably one end of a current production z. B. already almost completely printed partial web and a beginning of a subsequently to be brought to production sub-web are joined together. In their sum, the partial webs lined up for the same production form a coherent material web with a length determined essentially as a function of the support of the printed product to be produced. Moreover, it can be provided that several to the same material web belonging partial webs, the z as different strands. B. fed from different reel changers of the printing press, are fed to the same folder simultaneously.

The printing machine works z. Example, in a gravure printing method or in a planographic printing method, in particular in an offset printing method, wherein the offset printing method may be a conventional, ie a dampening wet offset printing method or a dry offset printing method without fountain solution. The printed product to be produced with the printing press is preferably produced in multicolor printing, in particular in four-color printing. A width of a material web to be printed in the printing press can be up to 4,500 mm, in particular when the gravure printing method is used. When using an offset printing method, the width of the material web is usually in the range between 1,000 mm and 2,400 mm, preferably between 1,200 mm and 2,400 mm. The partial webs required to execute a print job can each have a length in the range of several thousand meters. For example, depending on the grammage and / or type of paper, a new roll of newsprint paper in its condition delivered by the paper mill may have a partial web having a length in the range between 18,000 m and 25,000 m. Despite this considerable length of partial webs several of these partial webs are required to perform certain print jobs, as a print job z. B. in the production of a newspaper may well involve several tens of thousands of copies. A high-performance printing machine with cylinders z. B. double circumference, ie with cylinders with a circumference in the range between 900 mm to 1,400 mm, the circumference z. B. has two section lengths, each section length z. B. corresponds to a height of a newspaper page produced in a single hour, for example, about 90,000 copies of the respective printed product in double and about 45,000 copies in collective production. Such a printing press prints a role of the aforementioned type z. B. within 20 minutes, so then to the uninterrupted continuation of Production another sub-train ready and the printing press must be supplied.

To supply the printing press with each wound to partial webs webs a paster can be used, the webs automatically during a current production of the printing z. B. by bonding together. For this purpose, a prepared for production role is recorded on support arms of the reel changer and accelerated depending on the current production speed of the printing press. The roll prepared for production may be a new roll with a full length partial web or a residual roll already used in an earlier production with a residual length remaining from the original length. A residual role is thus a partially used role in a production, whereas a new role is an unused role in production.

The belonging to the printing press material supply system manages z. B. a main camp and a day camp, in the main camp a larger stock such. B. supplied by a paper mill to the printer rolls with z. As well as different grammage and / or paper type and / or roll width are stored and wherein in the day camp id R. From the main camp only for a current production taken rolls are preferably kept in close proximity to the press in question. Both one or more new rolls and one or more remaining rolls can be stored in the day store. The rolls stored in the day storage are preferably fed automatically one after the other to the roll changer belonging to the printing press. In the day storage and also in the reel changer at least two partial webs of unequal length can be available for an upcoming production. For transporting the individual roles in the main camp and / or between the main camp and the day camp and / or between the day camp and the reel changer, a suitable transport system is used, for. B. a stacker crane (RBG), a driverless transport system (AGV) or a crane. The provision of roles in the day camp is preferably carried out automatically using the one control unit The material supply system on the basis of a printing process upstream preferably computerized production planning system or manually input to the control unit of the material supply system data mathematically determined the need for roles and the provision of the required to perform a specific print job roles associated with the relevant Press on schedule controls.

The roles each have a z. B. cardboard, steel or aluminum existing sleeve around which the respective partial web is wound concentrically. The sleeve also serves to receive the respective roll on the roll changer, wherein at parallel spaced variably adjustable support arms opposite arranged cones due to a reduction of the distance between the support arms on both end sides of the respective role in the sleeve, wherein after gripping the Role by pivoting the support arms about a common axis extending parallel to the sleeve, the respective role of their respective pad is raised and received such that the respective lateral surface of the raised roller is free of any contact with any other contact surface. The sleeve of a used up role so far that use of this role in the production of the printing machine is no longer possible or at least no longer useful, is ejected from the reel by a preferably automatic release of the respective cones and finally removed from the area of the reel changer. The cones engaging a sleeve are rotatable. At least one of the cones engaging a sleeve is rotatably driven and driven to supply the partial web wound around this sleeve to the printing press in order to set the roller received in its stationary state into a rotational movement. A standing in operative connection with the at least one cone drive accelerates the recorded role in its rotational movement until the peripheral speed of this role corresponds to the current transport speed of the material web to be printed in the printing press. Then, the beginning of the part taken on this recorded roll part track automatically to the still in the current production running partial web preferably be added by an adhesive connection. The material to be printed web is at a transport speed in the range of z. B. 10 m / s to 15 m / s, preferably with about 12 m / s, passed through the printing press. The transport speed of the material web to be printed in the printing press depends on the production speed of the printing press, wherein the production speed of the printing press is frequently indicated in revolutions of the printing cylinder per hour. In an ongoing production run the printing exporting cylinders of the printing press, ie in offset printing at least the transfer cylinder, z. At 40,000 or even 45,000 revolutions per hour.

The duration for ejecting a sleeve of a settlement of their partial web z. B. used up to a minimum diameter used roll and for delivering another roll z. B. from the day camp to the reel changer and to Aufachsen and accelerate this further role by the reel changer forms a cycle time, which in addition to a temporal security surcharge for collecting z. B. may include any delays in the execution of the above operations. By way of example, it is assumed that the cycle time including a security surcharge of z. B. 30 seconds total about 420 seconds. Therefore, it is proposed that the partial web of the last roll, which is used in the execution of a continuous print edition of a particular printed product, has a minimum length, at a current transport speed for the material to be printed in the printing press web for a full cycle time lasting production is sufficient. If it is intended to prepare for a subsequent next production during an ongoing production, the minimum length of this last partial web also becomes dependent on the cycle time for providing at least one partial web to a material web other than the current one, namely the subsequent overlay established.

When planning the use of the last partial web required for executing a running production, preferably only the maximum transport speed for the material web to be printed in the printing press is taken into account. However, it can also be taken into account whether the transport speed for the material web to be printed in the printing press is changed during the use of this last partial web, in particular whether this transport speed is reduced from a higher amount to a smaller amount or even to a standstill. The determination of the minimum length of this last partial web can thus also be dependent on a profile of this transport speed, this profile having a uniform compared to the transport speed of at least one previously printed partial web or a changing, in particular a falling course. The intended profile of the transport speed of the last partial web to be used in a current production is preferably stored in a memory of the material supply system. Likewise, in the memory of the material supply system deposited, which has the length of the partial web of the reel changer supplied new role. This length can be z. B. on the control unit of the material supply system manually entered or in the memory of the material supply system, a database is stored, which contains data from previous productions, what data the control unit of the material supply system can use for their calculations, the data stored in the database z. B. depending on the grammage and / or the type of printing material can be sorted. The remaining length of a teilabgelaufenen role is z. B. from the reel changer, preferably based on the changed in a certain time unit diameter of this role, at least approximately and reported to the control unit of the material supply system for local storage and / or use.

The material supply system thus first determines the entire length of the material web that is used for the cohesive production of a specific edition or even several successive to be printed editions of a particular type of Printed product is required, and in the case of several successive to be printed editions, the individual partitions must match in each case in their page number and in the grammage and grade of the substrate to be used. For a lack of conformity of the individual partial editions in their respective page number and / or in their respective grammage and / or variety of the printing material to be used would give copies of the respective printed product, which would differ in their respective product thickness, which in turn inter alia changes to settings in one of the printing press downstream folding apparatus would result. Next, the material supply system preferably prepares on the basis of information, e.g. B. in the memory of the material supply system via existing in the main warehouse and / or day storage roles, the need for partial webs fixed, which are needed to form the determined length of the web, these partial webs may at least partially have a different length. Thereafter, the material supply system lines the selected partial webs to one another in such a way that the last partial web has a minimum length, wherein this minimum length depends at least on the cycle time to provide a partial web required for the continuation of the current production. From the amount of all existing in the main warehouse and / or day storage roles thus those rollers are selected in a first step, which are suitable for the execution of the upcoming print job, and these roles are z. B. cached in the day camp. Then, in a further step, these selected roles z. B. fed from the day storage in such an order the reel changer, that at least the above condition is fulfilled in terms of the last to be used for the execution of this print job role. At the end of the edition to be printed, the last partial web can be completely used up in their usable under the given conditions length, where they usually has a non-zero residual length, said remaining residual length of the last partial web at the end of the executed print job z. B. is separated by an actuation of a doctor blade of the printed material in the printing web. Furthermore, the residual roll belonging to this last partial web is then automatically adjusted by the roll changer. ie removed, and after an automatic or manual intervention, the z. B. by an adhesive preparation o. Ä. May be given, for. B. again preferably stored automatically in the day camp, if their re-use is possible under the given conditions of use. Usually, partially expired rolls are only stored in the day store. In the case of a last part track which is completely consumed in its usable length, the sleeve of this roller is preferably automatically removed from the area of the roll changer. A condition to be observed for a renewed use of a residual role can, for. Example, that it still has to have a certain minimum diameter so that they can be automatically raised again in a later production of the reel changer. This minimum diameter can z. B. in the range between 100 mm and 250 mm and is usually dependent on structural conditions of the transport system used for the transport of the respective role.

The material supply system considered in his arithmetic determination of the entire length of the web, which is required for the contiguous production of a particular edition of a particular printed product, accumulated experience accumulating experience, this by a percentage addition or by adding a fixed number of copies each to the desired product edition automatically or by a manual input or selection z. B. can be done on a control station of the printing press or on the control unit of the material supply system. In an edition of z. B. 65,000 copies of the printed product to be produced, for example, 2,000 expected copy copies or a circulation of z. B. 90,000 copies of the printed product to be produced z. B. 5,000 copies can be scheduled. In addition, in practice, a reserve equal to a certain percentage of the desired product circulation or in the amount of a certain number of copies, z. B. from 3,000 copies, by each of which the desired product edition is increased. The number of spoof copies and / or the reserve can z. B. variable at the control unit of the material supply system be set and adjusted depending on the height of the product support and / or the nature of the printed product. From the total number consisting of the product edition plus the spoof copies and the reserve, the total length of the material web required for a continuous production of this total number is determined on the basis of the given configuration for the printing press to be used. The configuration of the printing press takes into account, for example, the size of the circumference of the cylinders involved in the printing process of this printing press and the type of occupancy of these cylinders with printed images, the different types of production such as duplicate or collective production and the page number of the copies of the printed product to be produced.

The invention is based on the object of providing a method for preparing a second material web to be joined to a first material web, which minimizes set-up time on the web press by performing a roll change in a reliable manner.

The object is achieved by the features of claim 1, 2 or 3.

The achievable with the present invention consist in particular in that it allows the execution of an automated transition of a first to be printed in the first production line to a second material web to be printed in the subsequent second production, wherein the webs z. B. differ in their respective width and / or in the variety and / or grammage of their material from each other. This transition can be carried out with a minimum set-up time, possibly even without stopping the web-fed printing machine. The second web of material is reliably, punctually and promptly provided at the end of the first production on the web printing press, so that a prophylactic Vorhalten a so-called "Angstrolle" to ensure the completion of the ongoing production can be omitted, whereby not necessarily necessary operations are saved for the production. Also can be a stock from which the Web press is supplied with the respective material web to be optimized.

The control unit of the material supply system meets automatically, d. H. Programmatically, based on the production data provided to her, she selects from the set of roles she manages and automatically arranges them in such an order that the last condition used is fulfilled for the last used role from the selected selection of roles. This automation relieves the operator of a printing press. Possible erroneous decisions, which could affect the trouble-free operation and transition of successive productions, are counteracted by the consistent automated processing of clearly defined criteria.

An embodiment of the invention is illustrated in the drawings and will be described in more detail below.

Fig. 1

in einem Blockschaltbild eine Druckerei mit zumindest einer Druckmaschine und einem Materialversorgungssystem;

Fig. 2 bis 6

ein erstes Beispiel von ausgewählten Rollen zur Produktion eines bestimmten Druckproduktes;

Fig. 7 bis 11

ein zweites Beispiel von ausgewählten Rollen zur Produktion eines bestimmten Druckproduktes;

Fig. 12

in einem Diagramm einen zeitlichen Ablauf für den Vorgang der Umrüstung der Druckmaschine zur Ausführung einer geänderten Produktion;

Fig. 13

ein Datenflussdiagramm zur Darstellung des Steuerungskonzeptes;

Fig. 14a und 14b

Kombinationsmöglichkeiten für miteinander verbindbare Materialbahnen unterschiedlicher Breite;

Fig. 15

eine Darstellung der Anzahl von Varianten für Materialbahnen unterschiedlicher Breite mit einer Mindestüberdeckung;

Fig. 16

drei Beispiele für eine Klebevorbereitung der zweiten Materialbahn;

Fig. 17

einen Rollenwechsler mit einer ¾-breiten Rolle und einer 4/4-breiten Rolle;

Fig. 18

einen Rollenwechsler mit einer 2/4-breiten Rolle und einer 4/4-breiten Rolle;

Fig. 19

einen Rollenwechsler mit einer 2/4-breiten Rolle und einer 3/4-breiten Rolle;

Fig. 20

eine Programmmaske zur Durchführung eines automatischen Umfangwechsels hinsichtlich des herzustellenden Druckproduktes.

Show it:

Fig. 1

a block diagram of a printing house with at least one printing press and a material supply system;

Fig. 2 to 6

a first example of selected rolls for the production of a particular printed product;

Fig. 7 to 11

a second example of selected rolls for the production of a particular printed product;

Fig. 12

in a diagram a timing for the process of converting the printing press to perform a modified production;

Fig. 13

a data flow diagram illustrating the control concept;

Figs. 14a and 14b

Possible combinations of interconnectable material webs of different widths;

Fig. 15

a representation of the number of variants for webs of different widths with a minimum coverage;

Fig. 16

three examples of an adhesive preparation of the second material web;

Fig. 17

a reel changer with a ¾-wide roll and a 4/4 wide roll;

Fig. 18

a roll changer with a 2/4 wide roll and a 4/4 wide roll;

Fig. 19

a roll changer with a 2/4-wide roll and a 3/4-wide roll;

Fig. 20

a program mask for performing an automatic circumference change with regard to the printed product to be produced.

Fig. 1 shows simplified in a block diagram a printing company with at least one printing press 01 and an electronic control unit 02 of a material supply system. The printing machine 01 is preferably designed as a web-fed printing machine 01 and consists z. B. from several, z. B. two independently producible sections 03; 04, each section 03; 04 preferably several, z. B. four printing towers 06 and at least one folding apparatus 07 has. Each printing tower 06 is preferably assigned in each case an automatic reel changer 08, wherein each reel changer 08 at the same time two roles of the can carry a respective printing tower 06 to be fed substrate, namely a first role that is already involved in a currently running with the printing press 01 production, and another role that is prepared to be involved in the production, as soon as the substrate from the first Roll has been consumed. Each roll forms a partial web, wherein the roll changer 08 has a device for automatically connecting the partial web of the roll already involved in the current production with the partial web of the production continuing roll. This device interconnecting the partial webs of the roll changer 08 is formed in its preferred embodiment as an adhesive device. The roll changers 08 each have a control unit, which is connected in each case for carrying out a data exchange via a control line 09 to the control unit 02 of the material supply system. Preferably, each section 03; 04 a preferably as a control station 11; 12 trained control unit 11; 12 assigned, wherein at each of these control stations 11; 12 the respective section 03; 04 or even the printing press 01 as a whole can be controlled. Also, the control rooms 11; 12 are preferably connected via a control line 13 to the control unit 02 of the material supply system. The control stations 11; 12 each have z. B. also a control unit 31 with a display device ( Fig. 2 ), wherein on the control unit 31 data, in particular the respective print job production data entered manually or z. B. can be selected from a selection list. The respective control room 11; The display device belonging to FIG. 12 may also be designed as a so-called touchscreen, wherein a touchscreen is an input device known in computer technology as a touchscreen or touchscreen, so that a selection or input can be made directly at this display device, since functions of the control unit 31 are integrated in this display device. It is preferably provided that the production data, the control center 11, which controls at least the current production of the first printed product; 12 are made available by a manual input to the to this control station 11; 12 belonging control unit 31 during the current production of the first printed product can be supplemented and / or corrected so that changes and / or corrections considered if necessary can be. The control stations 11; 12 are preferably also interconnected with each other via a control line 14 data, this control line 14 is preferably also connected to an electronic control unit 16 of a production planning system. The control unit 16 of the production planning system is connected via a control line 17 to the control unit 02 of the material supply system. In addition, the control unit 16 of the production planning system can be connected via a control line 18 to a control unit 19 of an operating data acquisition system. In a manually guided main bearing is at the control unit 02 of the material supply system via a control line 22, at least one monitor 21 for role demand display and preferably z. B. also a control unit for an input and / or selection of data, in particular production data, connected to the control unit 02 of the material supply system. The control unit 02 of the material supply system is connected via a control line 23 also with control and actuating devices of the printing machine 01 associated with daily storage 24 in connection, said control and actuating devices z. B. drive at least one effective in the day storage 24 transport device 26 and monitor this transport device 26 in their movement. The effective in the day camp 24 transport device 26 may, for. B. be designed as a driverless transport system (AGV). Preferably, the day storage 24 is also managed by the material supply system.

Moreover, a roller preparation station 27 is provided for preparing the rollers, in which z. B. prepared from the main bearing rollers prepared for their use in a printing process and then stored in the day storage 24. In an automatically guided main bearing, the respectively required roll is automatically delivered to the roll preparation station 27 via the material supply system. The preparation of the rolls carried out in the roll preparation station 27 also includes, in particular, preparing these rolls for a bonding process carried out later in the roll changer 08. Rolls processed in the roll preparation station 27 are therefore also referred to as glue-prepared rolls. A glue-ready role is depending on the durability of the adhesive preparation z. B. within 24 or 72 hours to feed the printing process. A control unit arranged in the roller preparation station 27 for preparing the rollers is connected via a control line 28 to the control unit 02 of the material supply system. The control unit of the roll preparation station 27 preferably has an operating unit and a display device (both not shown).

All control lines 09; 13; 14; 17; 18; 22; 23; 28 may also be designed as wireless transmission links and / or preferably the same, z. B. an Ethernet-based communication network belong. In all control lines 09; 13; 14; 17; 18; 22; 23; 28 may be arranged one or more traffic controlling and / or monitoring devices 29, these devices 29 each z. B. are designed as a bidirectional traffic gestattende interface 29. The networking of all previously based on the Fig. 1 described system components, ie in particular of the control units 02; 11; 12; 16; 19, by means of the control lines 09; 13; 14; 17; 18; 22; 23; 28 allows data to be exchanged between at least one of the control stations 11; 12 and the production planning system and / or the material supply system and / or can be transferred from the respective roll changer 08 directly to the material supply system.

Depending on a specification of the production planning system, the control unit 02 of the material supply system causes suitable rolls of the printing stock to be kept ready in the day storage 24 for execution of a specific print job and to be transported in time to the respective roll changer 08. In this case, the control unit 02 of the material supply system controls the processes required to execute a specific print job such that the z. B. from the day storage 24 and / or main stock selected roles of the printing material are used targeted so used that the production to be performed is terminated with the last used to be used role at the end of the print run in a defined manner. The of the control unit 02 of the Material supply system determined the order of the rolls to be printed takes place in particular depending on the determined for the defined completion of production minimum length of the partial web on the last to be used role, wherein the determination of the minimum length preferably also the intended transport speed for in the printing press considered printing material web. The data networking of the control unit 11; 12 of the printing press 01 with the control unit 02 of the material supply system and / or the control unit 16 of the production planning system makes it possible, in particular, for a time for establishing the connection of the second material web with the first material web to be controlled by the control unit 11, which controls at least the current production of the first printed product; 12, dhid R. from one of the control stations 11; 12, can be determined and fixed, wherein the determination takes place in dependence on production data, the control unit 11; 12 by a manual input to a to this control unit 11; 12 belonging control unit 31 or automatically provided by the control unit 16 of the production planning system.

For rolls to be printed, the following constellations can result, by way of example, in the selection and sequence of the rolls to be used:

In a first example, a circulation of the printed product with 65,000 copies is assumed. A further 5,000 copies are planned as expected waste and as a reserve, so rolls are selected, with which a total of 70,000 copies can be produced. With a cycle time of 420 seconds considered as given in this example, taking into account a specific configuration of the printing press 01, at least 14,300 copies must still be producible with the last roll to be used. The control unit 02 of the material supply system selects to execute this print job z. B. three roles. The Fig. 2 to 4 each show a valid selection and order for the selected roles.

According to the Fig. 2 The production is started with a roll whose sub-run is sufficient for the printing of 40,000 copies of the current print job. Then two smaller roles, eg. B. sub-rollers used, the respective part of each web has a length of 15,000 copies to be printed. Even the last of these three roles is completely used up in the execution of this print job in their usable length, so that essentially only their sleeve is removed from the roll changer 08. The sub-roles, ie the two smaller roles, each z. B. residual roles from an earlier production.

To what extent the respective partial web is consumed in the printing process, is in the FIGS. 2 to 6 each indicated by a hatching of the respective role. In the FIGS. 3, 5 and 6 indicates a white cross-sectional area to the respective residual role, ie the whereabouts of that part of the web, which is not used in the current production.

According to the Fig. 3 is the production z. B. started with a partial role, the sub-railway for the printing of 15,000 copies enough. Thereafter, two new rolls are successively used with a sufficient for the print of 40,000 copies length of their respective sub-web used, but with the last role only 15,000 copies are produced. On this last role thus remains a greater residual length of their sub-web, so that this role removed from the reel changer 08 after completion of production and z. B. is stored again in the day camp 24. The current diameter of this last roll is greater than the minimum required diameter that must be present for this roll to be reused to perform an automatic roll change.

In the constellation after Fig. 4 The production starts with a small partial role, which is exhausted after the printing of 5,000 copies of the current print job. Afterwards, a new roll will be put into action, the part of which will suffice in the current production for 40,000 copies. Subsequently, a sub-roll is used to print the remaining 25,000 copies can be. Thereafter, this latter part of the role in their usable length is completely used up, so in turn essentially only their sleeve from the reel changer 08 is to be removed. In the illustrated case study was - as already in the example of the Fig. 2 - Assuming that the specimens planned for the reserve have all been printed. If the specimens scheduled as reserve are at least partly not printed, there would be a residual roll which would have to be stored again if their remaining actual diameter is larger than the required minimum diameter.

The in the Fig. 5 shown constellation is similar to the constellation according to the Fig. 3 However, at the beginning of the production, a partial roll sufficient to print 25,000 copies is used, so that at the end of the current production with the new roll only 5,000 copies must be printed. However, 5,000 copies are printed in a shorter time than the cycle time, so that it inevitably comes to a standstill of the printing press 01 after printing these remaining to complete the print job required copies. Because for a continuous transition to a subsequent production, it would be necessary that at the given speed profile for the transport of the web, the printing press 01 prints a total of at least 14,300 copies of the last used to be used role, which in the constellation according to Fig. 5 however, this is not the case. The selection and order of roles used here is therefore unfavorable and thus to avoid.

Also the constellation after Fig. 6 is very unfavorable and is not allowed to carry out a continuous transition to subsequent production. Here, a new role is completely consumed by the printing of 40,000 copies. Thereafter, only 20,000 copies of a new roll will be printed. This latter new role is thus half used up. Thereafter, in this example, a partial role to be used, the sub-train is sufficient for the print of 10,000 copies, after which this part role in their usable length completely used up. This production planning is to be avoided because it is unfavorable to connect at the given, preferably maximum transport speed for the web a teilabgelaufene role as the middle role, of which only 20,000 copies are printed, with the sub-web of a subsequent role, because in the Partially leaked roll would remain on the rapidly rotating residual roll, at least in the roll changer 08 uncontrollable to beating paper flag that could cause significant disruption to current production.

In the Fig. 7 to 11 a second example for the production of a printed product is shown, whereby it is assumed here of a circulation of the printed product with 95,000 copies, to which still a total of 8,000 copies are added as probable waste and as a reserve. It will be in each of the in Fig. 7 to 11 shown constellations of the control unit 02 of the material supply system four roles selected and strung together for the print job corresponding production made available, so that with the sum of their partial webs a total of 103,000 copies can be produced. With a given considered cycle time of 420 seconds, taking into account a specific configuration of the printing machine 01, it is determined that at least 16,750 copies must be producible with the last roll to be used. The Fig. 7 to 9 each show a permissible selection and order for the rollers selected by the control unit 02 of the material supply system.

According to the constellation of Fig. 7 Production will begin with a partial roll for 26,000 copies. It joins a new role for 40,000 copies. Thereafter, a partial role for 20,000 copies and then a partial role for 17,000 copies is first used, the latter part in this current production z. B. is then completely used up in their usable length, even if the copies scheduled to reserve copies have been completely printed. Otherwise, a residual roll remains, which must be returned to the day storage 24 or to the main warehouse, provided that their remaining current diameter is greater than the required Minimum diameter.

According to the Fig. 8 At the beginning of production, a partial role for 20,000 copies and then a new role for 40,000 copies is used, which in turn follows a partial role for 26,000 copies. To finish the current production, a new roll with a capacity for 40,000 copies is used again, of which, however, only 17,000 copies are printed, so that of the part of this role more than half of them left.

In the constellation after the Fig. 9 At the beginning of production, it has a limited role for only 5,000 copies, followed by a new role for 40,000 copies and two sub-roles, with the first partial role sufficient for 25,000 copies and the second partial role for 33,000 copies. Assuming that also the copies planned for the reserve have been completely printed, all rolls involved in this production will be completely used up in their usable length. Otherwise, a residual role also remains here, which must be supplied to the day storage 24 or the main warehouse, provided that their remaining current diameter is greater than the required minimum diameter.

The 10 and 11 show unacceptable constellations. In the constellation after the Fig. 10 begins production with a partial role for 30,000 copies. Then follow a new role for 40,000 copies and then a partial role for 25,000 copies. To finish the current production then only 8,000 copies need to be printed, but this happens at the given speed profile for the transport of the web in a shorter time than the existing cycle time. This constellation is unfavorable, irrespective of the type of final roll used, that is, regardless of whether a sub-roll or, as shown, a new roll covering 40,000 copies is used as this last roll.

In the constellation of Fig. 11 will be the production with a partial role for 26,000 Copies started. After that, two new rolls, each sufficient for 40,000 copies, are successively inserted, with the intention of using only half of the last of these rolls and completing the current production with a partial roll for 17,000 copies, this sub-roll being completely used up in its usable length. This constellation is unfavorable, because it requires that the partial web of the last part of the role of the sub-web of only half consumed new role during production, ie preferably at the maximum transport speed for the web is connected. This is not possible because of the paper flag on the only partially expired, in the roll changer 08 but still fast rotating residual role. Therefore, advantageously only one part track which is completely used up in its usable length is advantageously joined together with another part track to be used in the same production.

Fig. 12 shows in a diagram by way of example a time sequence for a conversion of a web printing press 01 from a current production of a first printed product to a subsequent production of a second printed product, this conversion, the execution of an automatic transition to be printed in the ending production first material web z. B. with a first width to be printed in the subsequent production second web z. B. should allow with a second width, these widths differ from each other. The transition from the ending production to the subsequent production may additionally or alternatively also relate to a change in the grade, in particular paper grade, and / or in the grammage of the printing stock. Even with the same grammage, a substrate, in particular a paper, depending on its variety in its web thickness differences of z. B. 20% or more. Therefore, a retooling of the web-fed printing machine 01 may also be necessary if in a subsequent production a material web of a different kind compared to the previous production is to be used. In the diagram, the production speed of the printing machine 01 - indicated by the number n of rotations of the printing cylinders per hour - plotted against the time t. That in the Fig. 12 Example shown assumes that the same in each of the printing towers 06 arranged printing unit is used for the first and second production.

In the diagram, in a first section A shown in abbreviated form indicated that in a first production shown, the printing machine 01 runs at its preferably maximum production speed n1, wherein the speed of rotation of the impression cylinder related production speed n1 z. B. 40,000 revolutions per hour. After expiration of the period indicated by the section A, the at least one control unit 11 leads; 12 of the printing machine 01 at time t1 z. B. their spill by the production speed n1 is continuously reduced from the time t1, since the current, ie in this example, the first production is coming to an end. In the example shown in the diagram, a second section B begins at time t1, at the latest until the end of the period indicated by section B, which extends to a point in time t3 at which the printing machine 01 preferably reduces one compared to the production speed n1 Production speed n3 in the range of z. B. only between 5,000 and 7,000 revolutions per hour, the control unit 02 of the material supply system, preferably due to an initiation by the control unit 16 of the production planning system, a new z. B. from the daily storage 24 taken role of the printing material to those roll changer 08 which is involved in the ongoing first production and will be involved in the subsequent second, ie new production. However, considering the cycle time described above, the provision of a reel needed for the new production preferably begins already before the time t1. In an alternative embodiment it can also be provided that the provision of the roll required for the new production has already been completed at time t1. The provision of the needed for the new production role includes that the reel changer 08 from its control unit z. B. is brought by a pivoting of its parallel support arms and by adjusting the distance between these support arms in a Aufachsposition in which the roll changer 08 receives the roll provided to it and then accelerates in its peripheral speed to the value of the predetermined by the already reduced production speed transport speed for the currently printed in the press material web.

If a role has been provided for the new production whose web z. B. has a smaller width than the width of the web in the still ongoing production, within the period indicated by the section B in the Fig. 12 As shown in section C washing process be provided for participating in the ongoing production printing cylinder, ie transfer cylinder and forme cylinder of the printing unit of the printing press 01 and for the ink transporting rollers of the respective forme cylinder associated inking, the preferably at the time t3 ending washing process z. B. at a time t2 begins at which the printing machine 01 preferably a relation to the full production speed n1 reduced production speed n2 z. B. of only 7,000 revolutions per hour. Until the time t2 and before the initiation of the washing process - triggered by a control command of the still running production-controlling control unit 11; 12 of the printing press 01 - set a supply of ink to the printing cylinders. The also referred to as a run-washing, beginning at time t2 washing process can, for. B. last between 2 and 3 minutes. This washing process, which is preferably accompanied by a retraction of the printing cylinder and in particular in a dry offset printing process and the inking of ink, is in a conversion of the printing press 01 to perform an automatic transition to be printed in the ending production first web with a larger first width to a in the subsequent production to be printed second web with a lower second standard width, otherwise remaining in the printing unit ink affected the subsequent printing process. When converting the printing machine 01 from a production with a first material web having a smaller first width on a subsequent production with a second Material web with a comparatively larger second width are the retraction of the printing cylinder and inking and the washing process, although also recommended, but optionally they can be omitted. At the latest at the end of section C, in which, inter alia, a free movement of the printing cylinder and possibly also of the inking units, the pressure-executing printing cylinder from the first material web are turned off.

In a time period following the time t3, which is represented in the diagram as a section D, becomes at a one of at least the current production of the first printed product controlling control unit 11; 12, ie from one of the control stations 11; 12, fixed time triggered by a corresponding control signal, a beginning of the intended for subsequent production second material web z. B. by an adhesive preferably with the first material web, which is still printed in the current production, connected, wherein the connection is preferably made by gluing, after the recorded by the roll changer 08 role with the second web in its peripheral speed to the current value the transport speed of the first material web has been accelerated. By establishing the connection of the second material web with the first material web, a connection point is formed, preferably a splice, the run of which can be monitored by the printing machine 01. The connection point between the first material web and the second material web is z. B. of a arranged in the roll changer 08 connecting device preferably formed at the end of the usable length of the second material web. Thus, the connection point between the first material web and the second material web at a defined transport speed passes through a distance from the roll changer 08 at least to the folder 07, the length of this route is determined by calculation on the basis of the design conditions in the printing machine 01 or metrologically. The time required for the passage of this route is z. B. stored in a database and can be used in a later same or similar production change for the determination of that time to which with a Change in a setting z. B. a width of the gap between jaws of the folder 07 should be started to retrofit the folder 07 from the previous production of the first printed product to the subsequent production of the second printed product. After a passage through the folder 07, the connection point between the first material web and the second material web is discharged on its way from the folder 07 to a subsequent downstream in the production process downstream processing at a Makulaturweiche.

At the marked by the time t4 end of the section D has the time t3 already z. B. to 5,000 to 15,000 revolutions per hour, preferably to 5,000 to 7,000 revolutions per hour, in particular to about 5,000 revolutions per hour reduced production speed n3 of the printing press 01 further to a production speed n4 with a value z. B. between 2,000 and 3,000 revolutions per hour. After the connection, the first material web is separated from its role by this material web by a cross-cutting device, for. As a discount knife, is cut off from a remaining on the roll rest of this substrate, wherein the cross-cutting device z. B. is operated by the control unit of the roll changer 08. The residual roll remaining from the currently running production is decelerated to its standstill with regard to its circumferential speed following the cut in the roll changer 08.

In a further period following the time t4, which is shown as a section E in the diagram, the beginning of the second material web provided for the subsequent production from the first material web through the respective printing tower 06 is at least up to a preferably in the superstructure of the printing press 01 arranged turning device pulled. The turning device has in addition to several turning bars also z. B. a plurality of transversely to the transport direction of the web of material arranged side by side and each acting longitudinally to the transport direction of the web of cutting devices with which the respective web in several individually processable strands is divisible. This z. B. as adjustable to the respective material web roller blade cutting devices are also referred to as slitter. In the in the Fig. 12 example shown is provided that the two webs of material interconnecting splice at the end of section E at time t5 in the turning device just reached the slitter, wherein at time t5, ie at the beginning of a in the Fig. 12 to the section E subsequent section F, the production speed n5 of the printing press 01 z. B. is reduced to zero and thus the two interconnected webs come to a standstill. The moving by the transport of the webs splice thus preferably stops immediately before or in the area of action of the slitter.

In the case of the conversion of a production with a material web of greater width to a production with a material web of smaller width is formed on the web with the greater width of a free strand after the splice has passed the slitter. This free strand, ie the strand no longer continued from the printing material, has to be removed from the printing machine 01, since it can no longer maintain a web tension necessary for its processing. In the case of the conversion of a production with a material web of smaller width to a production with a material web of greater width is in the slitter z. B. to activate at least one further cutting device to form in terms of new production at least one further separated from the web with the larger width strand. It may also be necessary to guide this at least one additional strand over at least one further turning bar before it is likewise processed in the folding apparatus 07. The above-mentioned standstill of the printing press 01 in section F, in which from the time t5, the production speed n5 z. B. is reduced to zero, is only necessary if an additional strand in the folder 07 to introduce and process there by the new production. Otherwise, the conversion of the printing press 01 and its folder 07 from the current production of the first printed product on the subsequent production of the second printed product can be carried out without a standstill of the printing press 01. However, the respective strand width is preferably not changed between the preceding and the subsequent production. With the conversion can therefore z. B. change only the number of strands formed from the respective material web. If, alternatively or additionally, the respective production line width is to be changed by the new production, the cutters still attached to the material web of the previous production are temporarily parked and repositioned until the start of the new production, before they are put back into service. Before starting up the new production, the cutting devices may also have to be freed of cutting residues resulting from the previous production and cleaned of soiling. It may also be provided that a strand of one of the material webs is divided into a plurality of different sub-strands by cutters employed on this material web and that these several different sub-strands of the same strand, which are processed into the same printed product, are simultaneously fed to the same folding apparatus 07.

At the latest after expiration of the beginning of the time t5 section F, in which the printing press 01 z. B. is stationary, ie at least the transport speed of the two interconnected material webs is reduced to zero, in particular the folder 07, which is to process the respective web or their respective strands each after their passage through the printing tower 06, set up for the new production. For this purpose, either the new web with its opposite the previous production changed width or formed from the new material, compared to the previous production changed number of strands with a relation to the full production speed n1 preferably significantly reduced retraction speed n7 fed into the folder 07, in particular a gap which can be set on the jaw cylinder of the folding apparatus 07 and which is currently still set for the preceding production of a gap formed by spaced-apart jaws, to the new production is adjusted. This adjustment of the width of the gap of the jaws can be done manually or preferably automatically by an adjusting device on the folding unit 07, wherein this adjusting device z. B. from one of the press 01 belonging control panels 11; 12 is controlled by a corresponding control command. The adaptation of the width of the gap of the jaws is always necessary in particular when changed by the production change held by the jaws thickness of the copies of the printed product by a minimum value, said minimum value z. B. less than 1 mm, preferably about 0.5 mm. Such a change in the thickness of the copies of the printed product may, for. Example, when the printed product has a jump in the number of pages of eight or more, or if a variety is used with a larger compared to the first material web sheet thickness for the second material web. For a significant change in the product flap held by the jaw thickness z. B. by changing the page number of the product of 8, 10, 12 or more pages, it may be necessary that the set to hold each one copy of the first printed product width of the gap of the jaws in several steps z. B. each less than 1 mm, in particular in steps of z. B. about or even less than 0.5 mm, is set to the width for holding a copy of the second printed product.

The change in the adjustment of the width of the gap of the jaws is preferably started as a function of the time for establishing the connection of the second material web with the first material web and / or the transport speed of the interconnected material webs, this time in the in the diagram of Fig. 12 limited by the times t3 and t4 limited section D. Preferably, the change in the adjustment of the width of the gap of the jaws is started after the production of the connection of the second material web with the first material web. Furthermore, it may be provided that the change in the adjustment of the width of the gap of the jaws is only started after the connection point between the first material web and the second material web produced with the connection of the second material web to the first material web its passage through the printing machine 01 has reached at least the cutting device acting longitudinally to the transport direction of the material webs. As mentioned, the change in the setting of the width of the gap of the jaws z. B. only after the production speed of the printing press 01 with respect to its printing cylinder from a production of the first printed product exporting level has dropped to less than 7,000 revolutions per hour or even after the cylinders of the printing press 01, the Production of the first printed product have come to a standstill. The change in the adjustment of the width of the gap of the jaws is preferably completed before the first copy in the sequence of the second printed product obtained from the second web reaches the respective gap of the jaws when the product thickness of the second printed product is greater than the product thickness of the previously produced first printed product. However, if the product thickness of the second printed product is less than the product thickness of the previously produced first printed product, the change in adjustment of the width of the gap of the jaws is preferably completed only after the first copy in the sequence of the second printed product obtained from the second web has reached the relevant gap of the jaws. It is advantageous to provide that the width of the gap of the jaws set for holding in each case one copy of the first printed product is adjusted by at least one drive provided in the folding unit 07 to the width for holding in each case one copy of the second printed product in less than 30 seconds.

In addition to adjusting the width of the gap of the jaws, it may be necessary to readjust a cylinder expansion in the folder 07, this requirement for a change in the production of the page number z. B. may only result from 32 or more pages. The retraction speed n7 must not exceed a limit set by the machine manufacturer during the adjustment of the folding apparatus 07, since otherwise the folder 07 can be damaged, due to a width of the gap that is set too small for the printed product the jaws may come to a tamper or the normally to be held by the jaws of the folder 07 to be held printed product during its transport in the folder 07 due to a large set width of the gap of the jaws. The limit value of the pull-in speed n7 is z. B. maximum at the reduced production speed n3 of at most 15,000 revolutions per hour, preferably at most 7,000 revolutions per hour, but in particular below this value, z. B. at a maximum of 5,000 revolutions per hour. The one in the diagram of Fig. 12 The pulling-in operation shown as section G begins with the time t6 and ends at the time t7. At the end of section G, the adjustment of the folder 07, ie its means for the new production is completed, if an adjustment of the folding device 07 is ever required because the product thickness of the second printed product z. B. deviates at least the required to change the setting of the width of the gap of the jaws minimum value of the product thickness of the previously produced first printed product, and the printing press 01 can be raised again to its full production speed n1, they at the end of the time t7 subsequent Reached section H at time t8. The section H is also referred to as proof, in which the printing cylinder involved in the printing of the second web are employed again at the latest and also z. B. at least one setting of the at least one in the printing tower 06 arranged inking and / or dampening to the new production, that is adapted to the first material web changed width of the second material web, which from the time t8 of the actual new production exporting run he follows. The in the Fig. 12 Sections F and G together form a phase in which in particular the folder 07 is adapted to the new production. However, the adjustment of the printing unit, which has the printing cylinder involved in the new production, as well as the adjustment of the associated to this printing unit inking and / or dampening can also be used for. B. already start at time t5. After completion of the adjustment of the folder 07, the transport speed of the web can be briefly reduced to zero (not shown) before the pressure of this new web begins. Be for the If the first and the second production use different printing units, the adaptation of the printing unit involved in the second production and of the associated inking unit and / or dampening unit can already begin before the time t5. The adjustment of the printing unit may include changing one or more printing plates arranged on the forme cylinder. The adjustment of the folder 07 may also include changing feed rollers, an overfold, creasing rollers, a paddle wheel, and / or a pinion ply in their respective settings. Furthermore, it may be necessary at least one traction device to maintain the web tension, for. B. a biasing and / or a pullout work and / or a Bildbahnregler to change in each setting. Also, a funnel slope and a device for web edge control to be adjusted to the new production. All these changes in the setting of the machine components involved in the second production are preferably carried out automatically and are z. From the first production or control unit 11 controlling the new production; 12, ie from the respective control station 11; 12 triggered.

As described above, at the time t4 the gluing process in the roll changer 08 is completed and the second material web belonging to the new production is drawn into the printing tower 06 involved in the second production. Beginning with the time t4, but at the latest from the time t7, which marks the beginning of the pressure, it starts to remove from the roll changer 08, which originates from the earlier, ie first production, in its peripheral speed braked to its standstill rest roll preferably as a tack-prepared roll either in the day store 24 or in the exceptional case in the main store again, the adhesive preparation of the removed from the roll changer 08 residual role usually takes place manually in the roll changer 08 and not by a move to the roll preparation station 27. The storage of a roll tack-prepared on the roll changer 08 in the day store 24 takes place in particular when, according to the data present in the production planning system, this role is within the period specified by the durability of the adhesive preparation can be reintroduced into a printing process. At the latest after the residual roll has been removed from the roll changer 08, the material supply system ensures that a new roll is delivered to this roll changer 08, which supplies at least one further part web of the material web required for the newly started production. This new role is, as described above, taken up by the roll changer 08 and introduced into ongoing production by the beginning of the web of the new role is preferably connected by gluing to the end of running in the current production of their role material web, wherein the provision and printing preparation of the new roll for a continuous supply of the printing press 01 with the printing material must be completed within the period of time, which is determined by the production time of the roll with the currently running material web. The material supply system ultimately provides for the realization of a continuous flow of material to the respective reel splitter 08 successively as many roles of the respective substrate available, as required by the specification of the production planning system according to the above-described computational determination to carry out the respective production.

Although the process steps required for retrofitting a web-fed printing press 01 from a current production of a first printed product to a subsequent production of a second printed product are based on the Fig. 12 have been explained using the example of a braked to its standstill roller press 01, the profile of the production speed shown is not mandatory. In another embodiment variant, it may be provided that the production speed is not reduced or only reduced in such a way that a continuous transition without stoppage of the web printing press 01 is carried out from the production of the first printed product to the subsequent production of the second printed product. The reduction of the production speed compared to the current production is dependent on whether an adjustment of the folding apparatus 07 to the new production is required and at which maximum transport speed for the second material web, the execution of this adjustment is possible.

Fig. 13 shows simplified data flow between the participating in the proposed control concept, data technically preferably interconnected components, the individual signal paths between these components, including the direction of the respective data flow are each indicated by an arrow. The at least the current production of the first printed product controlling the control unit 11; 12, dhid R. one of the control stations 11; 12, from which the printing machine 01 is controlled, receives by manual input to a control unit 11; 12 belonging control unit 31 or automatically from the control stations 11; 12 and the control unit 02 of a material supply system superordinate or at least coupled control unit 16 of the production planning system a set of belonging to a particular print job production data, which include production data including an indication of the number of copies of the printed product to be printed. The same or at least the same content set of production data is also provided by the control unit 16 of the production planning system to the control unit 02 of the material supply system. After the transmission and / or input of the respective production data, both the at least the current production of the first printed product controlling unit 11 has; 12 as well as the control unit 16 of the production planning system in each case at least over a set of production data, which characterize the first printed product to be produced, as well as a set of production data, which characterize the second printed product to be produced. The control unit 16 of the production planning system can be connected to at least one further computer system, not shown here.

The at least the current production of the first printed product controlling the control unit 11; 12 indicates to the control unit of the roll changer 08, which currently supplies the first material web to the printing press 01 for producing the first printed product, the control command to connect the second material web to the first material web currently fed to the printing press 01 at a certain point in time, this time being dependent on when, in accordance with the present production data, the subsequent production of the first printed product is to be converted to the subsequent production of the second printed product, the conversion then being initiated and executed when the first production carried out with the first material web is completed comes, ie after the production of the number of copies of the first printed product to be produced according to the production data associated with this first printed product. The execution of the at least the current production of the first printed product controlling the control unit 11; 12 issued to the control unit of the roll changer 08 control command is omitted z. B. when the control unit of the roll changer 08 to the at least the current production of the first printed product controlling the control unit 11; 12 sets a fault message, because the roll changer 08 z. B. no or a wrong material web has been provided. When the fault message is present, the control unit 11, which controls at least the current production of the first printed product; 12 for the printing machine 01 trigger a machine stop if necessary.

On the basis of the production data received from the control unit 16 of the production planning system or optionally by manual input, the control unit 02 of the material supply system provides the rolls of the respective printing material required for the execution of the respective print job at the reel changer 08 at the right time, as required. The control unit 02 of the material supply system therefore decides on the basis of the preferably received from the control unit 16 of the production planning system production data on which roles with what substrate in which order from the day storage 24 or the main warehouse and to be transported to the reel changer 08. The control unit of the roll changer 08 reports back to the control unit 02 of the material supply system, among other things, whether the roll changer 08 is ready to perform a roll change and / or which peripheral speed has the new roll prepared for the bonding process and / or whether a new role z. B. is required because of consumption of the currently unwound roll and / or which diameter has a to be removed from the roll changer 08 residual role. The control unit 02 of the material supply system can preferably report back to the control unit 16 of the production planning system, which role (s) and / or how many rolls of a particular printing material z. B. were consumed to perform a specific print job.

In the present control concept, the control unit 02 of the material supply system manages, on the basis of the production data received from the control unit 16 of the production planning system, all operations involving loading the reel changer 08 with the substrate required to perform a particular print job, whereas at least the current one Production of the first printed product controlling control unit 11; 12 monitors, based on the same set of present production data, all operations in the printing press 01 and causes adjustments to be made on time in the correct order upon a change of production in the printing press 01, including its associated folder 07, to execute the new production. Thus, various processes or control sequences of the control unit 02 of the material supply system and of the at least the current production of the first printed product controlling the control unit 11; 12 depending on the same z. B. provided by the control unit 16 of the production planning system production data matched and, if necessary, synchronized with each other.

The printing machine 01 forms between their spaced apart parallel side frames, the z. B. side SI and page Sll, a transport plane, in which the respective webs to be printed are feasible, the transport plane transverse to the transport direction of the respective webs a z. B. by the axial length of the printing cylinder, but at least has a limited by the distance of the side frames width. The width of the transport plane sets Therefore, a maximum width of the feasible by the respective printing press 01 material web fixed. The respective width of the respective material web can therefore correspond to a maximum of the width of the transport plane or it is formed smaller than the width of the design-related width of the transport plane in the printing press 01. In a printing machine 01 with a forme cylinder, on the lateral surface in the axial direction z. B. four printing plates are arranged side by side or at least can be arranged, the width of the transport plane z. B. divided into eight preferably equidistant sections. In a printing machine 01 with a forme cylinder, on the lateral surface in the axial direction z. B. six printing plates are arranged side by side or at least can be arranged, the width of the transport plane z. B. be divided into twelve preferably equidistant sections. If the respective material web occupies the full width of the transport plane with its respective width, the respective material web is referred to as a 1/1 web. If the respective web with their respective width only a part of the width of the transport plane to complete, receives the respective web that name, which corresponds to the proportion of the claimed width of the transport plane, ie z. B. ½-wide, ¾-wide, 7/8-wide, etc. A web, which occupies only a part of the width of the transport plane with their respective width, may be positioned differently in their arrangement with respect to the width of the transport plane, namely either it is aligned with the one or the other opposite side frame, ie on the side SI or on the side SII or it is z. B. arranged centrally between two side frames.

At a z. B. by means of a reel changer 08 automatically executed change from a first production of a first printed product to a subsequent second production of a second printed product, wherein a second web of material having a second width is connected to a first web of material having a different width from the first width , should be between the first width of the first material web and the second width of the second material web, an overlap z. B. of at least half of the full web width to a reliable Make connection between the first material web and the second material web. The minimum coverage for material webs to be joined of different width is generally at least several hundred millimeters and is z. B. in the range between 500 mm and 1200 mm. Taking into account this condition and taking into account the different possibilities of arrangement of these webs in the area defined by the width of the transport plane resulting in the example of a subdivided in eight preferably equidistant subsections width of the transport plane in the Fig. 14a and 14b shown combination options for interconnectable webs, wherein the Fig. 14b the Fig. 14a continues. In each variant, the expiring first material web is shown blackened with its first width, followed by representations of a respective permissible second material web with their respective second width, wherein the respective required coverage area between the width of the first material web and the width of the press 01 to be supplied new second material web is shown darker than the rest of the respective width of the second material web, provided that the width of the second material web is greater than the width of the first material web or the second material web is supplied with a lateral offset to the first material web of the printing press 01. The second material web is preferably tack-prepared in the anticipated coverage area of its width with the width of the first material web for establishing the connection between the two material webs.

Fig. 15 shows the example of a printing press 01 with a forme cylinder, on the lateral surface in the axial direction of four printing plates are arranged side by side or at least can be arranged, the number of variants that arise for webs of different width under the proviso that the coverage area of the first width the first material web having the second width of the second material web is at least half the width of the transport plane. The number of variants is for a 1/1-wide roll, for a 7/8 wide roll, for a 3/4-wide roll, for a 5/8-wide roll and for a 1/2-wide roll shown. In this example there are a total of 28 variants, all of them from the control unit 02 of the material supply system and in particular can be displayed on the display device of the control unit of the roll preparation station 27. After execution of the Klebevorbereitung for a particular role, the respective variant z. B. on the control unit of the control unit of the roll preparation station 27 can be confirmed by a corresponding input or selection, provided that no automatic detection is provided for this purpose. For a printing press 01 with a forme cylinder, on the lateral surface in the axial direction z. B. six printing plates are arranged side by side or at least can be arranged, the number of variants is significantly higher, because then the width of the transport plane z. B. is divided into twelve preferably equidistant sections and resulting in a gradation of the variants in steps of 1/12 width. These higher number of variants is then, as mentioned above, to be managed by the control unit 02 of the material supply system and preferably visualized at the roll preparation station 27.

If the second material web has a smaller width than the first material web, it is generally sufficient to form at the beginning of the second material web an adhesive preparation extending substantially along the width of the transport plane in order to produce a reliable connection between these two material webs of different widths , In the event that the second material web has a greater width than the first material web, however, it is proposed to extend the adhesive preparation by forming a bevelled portion at the beginning of the second material web, wherein the chamfered portion is preferably formed as a glue tip wherein the formation of the chamfered portion by chamfering the second material web in the transport direction takes place. If the width of the second material web is greater than the width of the first material web by at most ¼ of the full web width, a chamfering of the second material web in its transport direction with a length L of approximately 2 m may be sufficient without the chamfer being reinforced at its edge region , A length L of the bevel of about 2 m corresponds approximately to half circumference of a new roll. If, however, the width of the second material web by more than a quarter of the full width of the web, ie by more than a quarter of the maximum width allowed for these webs width is greater than the width of the first material web, ie a change z. B. from a ½-width first material web on a 7/8 wide or 1/1 wide second material web, then a beveled portion with a chamfer with a length of several meters is formed on the second material web, wherein the length L the bevel in the transport direction of the second material web z. B. may be 6 m to 8 m, moreover, the chamfer is preferably formed reinforced at its edge region with an adhesive tape. A length L of the chamfer of about 6 m to 8 m corresponds to about one and a half times to double the circumference of a new role.

Fig. 16 illustrates the Klebeborbereitung the second web using three examples a), b) and c). In all three examples, the adhesive-prepared second material web wound around a central axis 32 into a roll is shown in a plan view in each case in the lower image area, and the upper image area respectively shows the beginning of the second material web unwound from the respective roll, wherein in all three examples the respective second material web transversely to its transport direction in each case in four equidistant sections 33; 34; 36; 37 is divided. In all three examples, it is ensured that in order to produce a reliable connection between the first material web and the second material web, there is an overlap between the width of the first material web and the width of the second material web of at least half of the full web width, ie in these examples of FIG in each case at least two adjacent subsections 33; 34; 36; 37th

In example a), with the change of production, a second material web extending over the full width, ie a 4/4-wide web, is to be connected to a 2/4-wide first material web, wherein the 2/4-wide first material web runs centrally to the 4/4-wide second web so that on both sides of the 2/4-wide first web at the transition to the 4/4-wide second web a jump from each ¼-width of the full web width results, the full web width is the maximum web width allowed for these webs. To prepare the preparation of a compound of 4/4-wide second material web with the 2/4-wide first material web, a glue tip is formed, wherein the 4/4-wide second material web at its beginning on both sides, ie in their outer sections 33; 37, is beveled over a length L of about 2 m. With a width jump of at most only ¼-width of the full web width, it is generally not necessary to reinforce the respective edge region of the chamfers formed on the second material web. At the adhesive tip, ie in an end region of the second material web, at the two central subsections 34, 36 substantially transversely to the transport direction of this second material web, ie at an inclination angle φ of less than 10 °, preferably from 1 ° to 2 °, a double-sided adhesive tape 38 is attached, with which the connection to the 2/4-wide first material web is made later. The inclination in the attachment of the double-sided adhesive tape 38 is advantageous for the subsequent passage of the connection point between the first material web and the second material web z. B. by the nip against each other employed printing cylinder to avoid an extended in the axial direction of this printing cylinder line load.

In example b), with the change of production, a second material web extending over the full width, ie a 4/4-wide web, is to be connected to a 3/4-wide first material web, so that on one side of the 3/4 -width first material web at the transition to the 4/4-wide second material web results in a width jump of ¼-width of the full web width. Also in this case, a glue tip is formed on the 4/4-wide second material web, wherein the 4/4-wide second material web on one side of its beginning, namely here in the outer portion 37, as in Example a) over a length L Beveled by about 2 m, with a reinforcement in the edge region of the formed on the second material web chamfer due to the width jump of only ¼-width of the full web width is not required. At the adhesive tip is in turn, in the sections 33; 34; 36, preferably attached at a slight inclination transverse to the transport direction of the second material web, a double-sided adhesive tape 38.

In example c), with the change of production, a second material web extending over the full width, ie a 4/4-wide web, is to be connected to a 2/4-wide first material web, both material webs each having one of their end faces the same side of the printing machine 01 are aligned so that at the opposite side of the alignment page at the transition of the 2/4-wide first material web to 4/4-wide second material web results in a width jump of 2/4 width of the full web width. This sudden change is so great that, in addition to the previously described adhesive preparation, further measures are required in order to substantially rupture the 4/4 wide second material web as it is drawn into the printing press 01 due to the first material web compared to the 2/4 wide material web to avoid changed web tension conditions. Rather, the additional measures must aim to equalize the different in each material web web tension conditions. For this purpose, it is proposed that the beginning of the second material web in the two adjacent sections 36; 37 over a comparatively larger length L of z. B. 6 m to 8 m beveled and then reinforce the edge region of this chamfer with a preferably flat reinforcing strip 39, wherein the stiffening band 39 z. B. is formed as an adhesive side only having adhesive tape 39. Depending on the tensile strength of the reinforcing strip 39 used for reinforcing the edge region of the chamfer and / or the tear resistance or tensile strength of the material of the second material web, it may be appropriate to apply this reinforcing strip 39 preferably in the edge region of this bevel z. B. parallel to that edge 41 in several, z. B. to attach two parallel strips, wherein the two strips formed with the stiffening band 39 preferably at a distance a39 of a few millimeters, z. B. of about 15 mm, are attached to the bevel, each of these strips each z. B. between 30 mm and 50 mm wide. A multi-layered design of these strips is to be avoided, as this causes an undesirable thickening of the respective Material web would result. At a high width jump of significantly more than ¼-width of the full width of the web and / or a material web of low crack resistance one or more additional strips of the reinforcing strip 39 can be attached to the at the edge of the chamfer even in the central region of the adhesive tip Indentation of the material web at the adhesive tip attacking web tension across the width to even. At the adhesive tip is in the unaffected by the bevel sections 33; 34 again preferably with a slight inclination transverse to the transport direction of the second material web, a double-sided adhesive tape 38 is attached.

In practice, the length L of the chamfered portion between at least 0.5 m and usually form at most 8 m, which corresponds in rolls wound to material webs about half to twice the circumference of the relevant role. The edge 41 of the chamfer runs at an angle of z. B. less than 30 °, preferably less than 10 °, in particular between 3 ° and 8 ° to the intended direction of transport of this web. With a grammage of the second material web in the range between 45 g / m ² and 50 g / m ² , it is advantageous if the length L of the chamfered portion is approximately ten times the intended width jump. The higher the grammage and / or the crack resistance of the second material web, the shorter the length L of the chamfered portion can be formed. Values of the grammage of common types of paper are in the range between 25 g / m ² and 150 g / m ² , preferably between 45 g / m ² and 60 g / m ² . The stiffening band 39 should be applied in the edge region of the chamfer if the tensile strength of the second material web is less than 2,000 N / m. The tensile strength of paper across its fiber direction is significantly lower than in the fiber direction. The intended transport direction of the relevant material web is usually always parallel to the fiber direction of this material web. The stiffening band 39 should therefore be applied in the edge region of the chamfer at least when the tensile strength of the material web formed as a paper web is below 1000 N / m in its fiber direction and below 600 N / m transverse thereto.

The attachment of the reinforcing strip 39 in the edge region of the at least one section beveled on the second material web is thus provided in particular when in the production of a connection between two different widths of material webs, the width of the second material web by more than a quarter of the maximum permissible for these webs web width is greater than the width of the first web and / or if the length L of the tapered portion is between eight and twenty times the width difference between the first and second webs and / or if the second web tear strength is less than that of the first web , These abovementioned conditions for attaching a reinforcing strip 39 in the edge region of the at least one section bevelled on the second material web are of particular interest in the implementation of automated processes for converting a web printing press from a continuous production of a first printed product to a subsequent production of a second printed product, because these conditions are for. B. on the basis of existing production data and / or on at least one of the material webs currently measured data machine testable, so that in the presence of one or more of these conditions, the attachment of the reinforcing strip 39 z. B. initiated automatically by the control unit 02 of the material supply system and z. In the roll preparation station 27 (e.g. Fig. 1 ) can be performed.

Fig. 17 shows in a side view a roll changer 08 with two pairs of support arms, wherein by a pair of support arms a ¾-width wound into a roll first material web and the other pair of support arms a 4/4-wide wound into a roll second material web is added , Both rollers are aligned with one of their end faces in each case on the same side of the roll changer 08 aligned. To prepare a connection to be made between the first and the second web of material, the second web of material is provided at its beginning with a glued on one side adhesive tip, wherein in the three of the bevel not affected subsections in turn, preferably with a slight inclination transverse to the transport direction of the second material web, a double-sided adhesive tape 38 is attached. The Indian Fig. 17 The situation shown corresponds to example b) of Fig. 16 , The connection of the second material web with the unwound in the current production of its role first web only takes place after the role with the second material web z. B. has been accelerated from its standstill in its peripheral speed to the transport speed of the first material web.

Fig. 18 also shows in a side view a reel changer 08 with two pairs of support arms, wherein a pair of support arms a 2/4 wide wound to a roll first material web and the other pair of support arms a 4/4-wide wound into a roll second Material web is added. Both rollers are aligned with one of their end faces in each case on the same side of the roll changer 08 aligned. In order to prepare a connection to be produced between the first and the second material web, the second material web is provided at its beginning with a glued on one side adhesive tip, wherein in the two sections not affected by the bevel again preferably with a slight inclination transverse to the transport direction of the second material web double-sided adhesive tape 38 is attached. In addition, due to the large width jump of 2/4 of the full web width in the edge region over a length L of z. B. 6 m to 8 m current bevel preferably in the form of z. B. two preferably parallel strips a stiffening band 39 attached. The Indian Fig. 18 The situation shown corresponds to example c) of Fig. 16 , The connection of the second material web with the unwound in the current production of their role first web is also here only after the role with the second material web in its peripheral speed z. B. has been accelerated from its standstill on the transport speed of the first web.

Fig. 19 also shows in a side view a reel changer 08 with two pairs of support arms, wherein a pair of the support arms a 2/4 wide wound to a roll first material web and of the other pair of support arms a 3/4 width wound into a roll second material web is added. Both roles are centered in the reel changer 08. At the beginning of the second material web, a glue tip tapered on both sides over a length L of approximately 2 m is formed, wherein a double-sided adhesive tape 38 is attached to the two bevels, preferably with a slight inclination transverse to the transport direction of the second material web. A reinforcement in the edge region of the chamfers formed on the second material web is not required due to the small width jump of only ¼-width of the full web width. As with the in the Fig. 17 and 18 shown examples, the connection of the second web with the unwound in the current production of its role first web is here only then after the role with the second web in its peripheral speed z. B. has been accelerated from its standstill on the transport speed of the first web.

Fig. 20 shows a program mask 42, the z. B. on the display device of one of the control stations 11; 12 is displayed. This program mask 42 belongs to a program which controls the sequence of the process for retrofitting the web printing press from a current production of a first printed product to a subsequent production of a second printed product, wherein the webs z. B. differ in their respective width and / or in the variety and / or grammage of their material from each other, ie automatically performs a so-called circumference change. The program mask 42 has z. B. a control panel 43, in which z. B. can be determined by an operation of a corresponding button 44 or 46, whether the process of retrofitting the web printing machine from a current production of a first printed product to a subsequent production of a second printed product by an operator manually controlled or automatically run automatically programmatically. In the Fig. 20 By way of example, the button 46 assigned to the automatic sequence of this method is shown activated. In the case of automatic Expiration of this procedure becomes, as in the Fig. 20 exemplified, entered in an input field 47, a residual amount of copies of the first printed product, z. B. - as shown - of 5,000 copies. If only the production of this remaining quantity of copies of the first printed product remains in the current production, this preferably flows in one of the control stations 11; 12 program implemented the process of this process for retrofitting the web printing press from a current production of a first printed product to a subsequent production of a second printed product. The procedure of this procedure is in the Fig. 12 shown and explained in the accompanying description. The achievement of the variable amount of copies of the first printed product which can be entered variably in the input field 47 and which is actually entered, correlates in FIG Fig. 12 with the time t1 shown there, to which the control unit 11; 12 of the printing press 01 begins to reduce the preferably maximum production speed n1 of the printing machine 01, ie the transition from section A to section B.

The program mask 42 also has z. B. at least one display field 48, in which preferably at least one operating status of various at the end of this process for retrofitting the web press from a current production of a first printed product to a subsequent production of a second printed product participating units of the web press are displayed. In the in the Fig. 20 In the example shown, the displayed operating statuses relate to successive operating states of at least one reel splitter 08 involved in the method. B. be updated depending on the event.

LIST OF REFERENCE NUMBERS

01

press

02

control unit

03

section

04

section

05

-

06

printing tower

07

folding

08

reelstands

09

control line

10

-

11

Control unit, control room

12

Control unit, control room

13

control line

14

control line

15

-

16

control unit

17

control line

18

control line

19

control unit

20

-

21

monitor

22

control line

23

control line

24

day camp

25

-

26

transport means

27

Roll preparation station

28

control line

29

Device, interface

30

-

31

operating unit

32

axis

33

part Of

34

part Of

35

-

36

part Of

37

part Of

38

duct tape

39

Stiffening tape, adhesive tape

40

-

41

edge

42

program mask

43

Control panel

44

button

45

-

46

button

47

input box

48

display

A

section

B

section

C

section

D

section

e

section

F

section

G

section

H

section

L

length

a39

distance

φ

tilt angle

n1

production speed

n2

production speed

n3

production speed

n4

production speed

n5

production speed

n7

threading

t1

time

t2

time

t3

time

t4

time

t5

time

t6

time

t7

time

t8

time

Claims (33)

1. Method for preparing a second material web to be joined to a first material web, wherein a start of the second material web is joined to the first material web, wherein at the start of the second material web, at least on one of the sides thereof that are directed along the transporting direction thereof, there is formed a section that is bevelled over a length (L), wherein at least one reinforcing tape (39) is attached at least in the edge region of the at least one bevelled section at least parallel to the edge (41) of the bevel, characterized in that the reinforcing tape (39) is attached when the width of the second material web is greater than the width of the first material web by more than a quarter of the maximum permissible web width for these material webs.
2. Method for preparing a second material web to be joined to a first material web, wherein a start of the second material web is joined to the first material web, wherein at the start of the second material web, at least on one of the sides thereof that are directed along the transporting direction thereof, there is formed a section that is bevelled over a length (L), wherein at least one reinforcing tape (39) is attached at least in the edge region of the at least one bevelled section at least parallel to the edge (41) of the bevel, characterized in that the reinforcing tape (39) is attached when the first material web and the second material web have different widths and the length (L) of the bevelled section is between eight times and twenty times the difference in width between the first and the second material web.
3. Method for preparing a second material web to be joined to a first material web, wherein a start of the second material web is joined to the first material web, wherein at the start of the second material web, at least on one of the sides thereof that are directed along the transporting direction thereof, there is formed a section that is bevelled over a length (L), wherein at least one reinforcing tape (39) is attached at least in the edge region of the at least one bevelled section at least parallel to the edge (41) of the bevel, characterized in that the reinforcing tape (39) is attached when the first material web and the second material web have different widths and the tear strength of the second material web is less than that of the first material web.
4. Method according to Claim 1, 2 or 3, characterized in that said condition is checked when an automated method for converting a web-fed printing press from current production of a first printed product to subsequent production of a second printed product is carried out.
5. Method according to Claim 1, 2 or 3, characterized in that said condition is checked on the basis of available production data and/or data measured on at least one of the material webs.
6. Method according to Claim 1, 2 or 3, characterized in that the length (L) of the bevelled section is designed to be between 0.5 m and 8 m, wherein the length (L) of the bevelled section is designed to be shorter, the greater the tear strength of the second material web.
7. Method according to Claim 1, 2 or 3, characterized in that the first material web and the second material web are supplied in succession to a web-fed printing press.
8. Method according to Claim 1, 2 or 3, characterized in that the second material web is joined to the first material web during the conversion of the web-fed printing press from current production of a first printed product produced from the first material web to subsequent production of a second printed product produced from the second material web.
9. Method according to Claim 1, 2 or 3, characterized in that the first material web is moved at a transporting speed in the range of 10 m/s to 15 m/s.
10. Method according to Claim 1, 2 or 3, characterized in that the second material web is brought to the same transporting speed as the first material web before it is joined to the first material web.
11. Method according to Claim 1, 2 or 3, characterized in that the second material web is joined to the first material web by an adhesive bond.
12. Method according to Claim 1, 2 or 3, characterized in that the reinforcing tape (39) is attached to the bevelled section in a number of strips.
13. Method according to Claim 12, characterized in that the strips formed with the reinforcing tape (39) are attached in a manner parallel to one another.
14. Method according to Claim 12, characterized in that two strips formed with the reinforcing tape (39) are attached at a spacing (a39) of a few millimetres.
15. Method according to Claim 12, characterized in that the strips formed with the reinforcing tape (39) are attached to the bevel at a spacing (a39) of approx. 15 mm.
16. Method according to Claim 1, 2 or 3, characterized in that an adhesive tape (39) having only one adhesive side is used as the reinforcing tape (39).
17. Method according to Claim 1, 2 or 3, characterized in that, in an end region of the second material web, a double-sided adhesive tape (38) is attached substantially transversely to the transporting direction of the second material web.
18. Method according to Claim 17, characterized in that the double-sided adhesive tape (38) is attached to the bevelled section at an inclination angle (ϕ) of less than 10° transversely to the transporting direction of the second material web.
19. Method according to Claim 17, characterized in that the double-sided adhesive tape (38) is attached to the bevelled section at an inclination angle (ϕ) of 1 ° to 2° transversely to the transporting direction of the second material web.
20. Method according to Claim 1, 2 or 3, characterized in that the bevelled section is bevelled over a length (L) of 6 m to 8 m.
21. Method according to Claim 1 or 2, characterized in that the reinforcing tape (39) is attached when in addition the tear strength of the second material web is less than that of the first material web.
22. Method according to Claim 1 or 3, characterized in that the reinforcing tape (39) is attached when in addition the length (L) of the bevelled section is between eight times and twenty times the difference in width between the first and the second material web.
23. Method according to Claim 2 or 3, characterized in that the reinforcing tape (39) is attached when in addition the width of the second material web is greater than the width of the first material web by more than a quarter of the maximum permissible web width for these material webs.
24. Method according to Claim 1, 2 or 3, characterized in that the second material web is wound up to form a reel and the bevelled section to be formed at the start of the second material web is bevelled over a length (L) which corresponds approximately to one and a half to two times the circumference of this second material web wound to form a reel.
25. Method according to Claim 1, 2 or 3, characterized in that the second material web is joined to the first material web only when the width of the first material web and the width of the second material web overlap at least by half the maximum web width.
26. Method according to Claim 1, 2 or 3, characterized in that a material web having a width in the range between 1000 mm and 2400 mm is used as the second material web.
27. Method according to Claim 1, 2 or 3, characterized in that the reinforcing tape (39) is attached when the tensile strength of the second material web is less than 2000 N/m.
28. Method according to Claim 1, 2 or 3, characterized in that a paper web is used as the second material web.
29. Method according to Claim 28, characterized in that a paper web having a grammage in the range between 25 g/m² and 150 g/m² is used.
30. Method according to Claim 28, characterized in that a paper web having a grammage in the range between 45 g/m² and 60 g/m² is used.
31. Method according to Claim 28, characterized in that the reinforcing tape (39) is attached when the tensile strength of the paper web is less than 1000 N/m in the fibre direction and less than 600 N/m transversely thereto.
32. Method according to Claim 1, 2 or 3, characterized in that a material web having a different grammage and/or different type of material compared with the first material web is used as the second material web.
33. Method according to Claim 1, 2 or 3, characterized in that the second material web is joined to the first material web during current production of the web-fed printing press in conjunction with a reel changer (08).

Images