EP2751000A1

EP2751000A1 - Method for controlling the transport of printed products produced in a printing press

Info

Publication number: EP2751000A1
Application number: EP12743158.3A
Authority: EP
Inventors: Andreas Hugo HOF
Original assignee: Koenig and Bauer AG
Current assignee: Koenig and Bauer AG
Priority date: 2011-09-01
Filing date: 2012-08-02
Publication date: 2014-07-09
Anticipated expiration: 2032-08-02
Also published as: EP2751000B1; CN103764530A; CN103764530B; WO2013029913A1; DE102011082005A1; DE102011082005B4

Abstract

The invention relates to controlling the transport of printed products (07) produced in a printing press (16), the printed products being transported from a delivery system (17) of a folding apparatus (01) of this printing press to a conveyor device (19) of a system (21) for further processing the printed products, the conveyor device being arranged downstream from the folding apparatus. At least during a continuous reduction of a transport speed (v06) of a substrate which is guided through the printing press and from which the printed products are produced, a signal indicating the current transport speed of the substrate is transmitted to the conveyor device of the system for further processing these printed products. Below a pre-set value for the continuously falling transport speed of the substrate, the signal which indicates this transport speed and which is transmitted to the conveyor device of the system for further processing the printed products is generated by a set-point generator (27) independently of the actual transport speed of the substrate and is transmitted to the conveyor device of the system for further processing the printed items.

Description

description

Method for controlling a transport of printed products produced in a printing machine

The invention relates to a method for controlling a transport in one

Printing press produced printed products according to claim 1.

From DE 10 2008 013 257 A1 a boom module of a printing machine is known, with a paddle wheel, wherein the paddle wheel has paddles, in which provided in a folder with at least one fold products are introduced by means of a conveyor, wherein the conveyor with one of a Printing machine speed dependent speed is driven such that at lower press speeds, the products to be introduced into the blade pockets of the paddle wheel are not or less slowed down than at high press speeds.

DE 12 24 751 A can be removed, as in a fast-running

Rotary press produced newspapers on at least two

Insertion devices, which can not work as fast as the newspapers are ejected from the rotary printing press, can be distributed, with a first conveyor subsequent conveyor belts reduce the transport speed of the newspapers, which is adapted to the transported newspapers to the working speed of the insertion devices.

The DD 283 124 A5 discloses a method and a device for adopting Printed products from a revolving driven impeller one

Printing machine known.

The invention has for its object to provide a method for controlling a transport of printed matter produced in a printing press, wherein the printed products from a delivery of a folding apparatus of this printing press for a downstream of the folder conveyor of a system for

Further processing of printed products to be transported.

The object is achieved by the features of claim 1.

The achievable with the present invention consist in particular that a

Folder and belonging to him or him subsequent conveyors are driven in an accelerated manner completely empty, which also after a set in the outlet of the printing press off-operating position of the printing cylinder involved in the previous production all to one

completed production belonging to their printed products

Further processing z. B. can reach in a mailroom and do not have to be supplied in otherwise conventional manner a waste container. The proposed method of each printed edition z. B. about 40 to 50 copies are used for sale. In addition, by the thus brought about reduction of waste on a z. B. used in newspaper printing several tons of substrate per year saved what the

Improved economy of this printing press.

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

Show it: Fig. 1 is a schematic representation of a process chain from a printing unit of a printing press on their folder to a folding this

downstream conveyor of a system for further processing of the printed matter produced by the printing press;

Fig. 2 is a block diagram illustrating a method for controlling a transport of printed matter from a delivery of the folding apparatus of the printing press to the downstream of the folder conveyor of the system for processing the printed products;

3 shows three diagrams to illustrate a time behavior of the respective

Transport speeds of a guided through the printing press substrate, from the delivery of the folder and optionally a feed belt and from the conveyor of the system for

Further processing of the printed products.

Fig. 1 shows in a schematic representation simplified a folding apparatus 01 a printing press 16, wherein the folding apparatus 01 at least one cutting cylinder 02 and z. B. a Punktur- and folding blade 03 and a jaw cylinder 04, wherein a run into the folder 01, in particular as a

Material web formed substrate 06 is divided in a knick between the cutting cylinder 02 and the Punktur- and folding blade 03 by a repeating in a certain cycle execution of a separation process continuously into a plurality of successive individual units 07, these units 07 each initially on the periphery the Punktur- and folding blade 03 and then transported on the circumference of the jaw cylinder 04, the individual units 07 in their transfer from the Punktur- and folding blade 03 to the

Folding flap cylinder 04 z. B. be provided with a transverse fold. The folder 01 However, it can also be of another type and z. B. pinless.

The fed to the folder 01 substrate 06 is previously preferably in at least one printing unit 1 1 of the printing press 16, z. B. in a designed for multi-color printing, a plurality of printing units 1 1 having printing tower a

Rotary printing machine or in a consisting of several printing towers section of a rotary printing machine, z. B. has been printed on both sides in each case with at least one printed image, wherein the at least one printing unit 1 1 z. B. acting on both sides of the printing substrate 06 double printing unit, each of these two printing units each having at least one printing unit cylinder. Each preferably designed for offset printing unit has in a preferred embodiment as a printing cylinder z. B. a transfer cylinder 12 and one with this

Transfer cylinder 12 cooperating form cylinder 13 and at least one of the form cylinder concerned 13 employed or at least engageable inking unit 14th

On its way from the at least one printing unit 1 1 of the printing press 16 to the printing press 16 associated with this folder 01 z. B. formed as a paper web material z. B. cut longitudinally and / or z. B. longitudinally folded on a former, not shown. Also, the web may consist of a strand of several superimposed partial webs, preferably each of these partial webs z. B. in another printing tower of several printing towers

existing section of the trained as a printing machine printing machine 16 is printed in each case with at least one printed image. In the folder 01, the individual units formed from the material web by carrying out the separation process 07, which are in their printed in the at least one printing unit 1 1 of the printing machine 16 with at least one printed image state as printed matter 07, z. B. by means of a belt system 08 a rotating or at least rotatable paddle wheel 09, which paddle wheel 09 during its rotation the individual units 07 or printed products 07 z. B. in the form of a scale flow on a display 17 of the folder 01 interprets, this display 17 of the folder 01 z. B. is designed as a circumferentially driven belt, being transported with this band printed products 07 at a transport speed v17 on this display 17 of the folder 01.

From the display 17 of the folder 01, the individual units 07 and

Printed products 07 each individually or in a plurality of collected into a bundle form optionally via a preferably with a transport speed v18 circumferentially driven conveyor belt 18 to a folding apparatus 01 downstream conveyor 19 of a system 21 for further processing of the individual units 07 and printed products 07 weiter transported, wherein this conveyor 19 z. B. a circulating with a transport speed v19 transport chain 22 with arranged at certain intervals grippers 23, said gripper 23 during their predetermined by the transport chain 22 movement the individual

Units 07 or printed products 07 each individually or in a bundle collected form on the conveyor belt 18 or take directly on the display 17 of the folder 01, the gripper 23 according to their predetermined by the transport chain 22 movement taken individual units 07 or printed products 07 feed their respective further processing. The system for further processing includes z. B. a mailroom, in which the individual units 07 or

Printed products 07 are made ready for dispatch. Not to be sold individual units 07 or printed products 07 are from the conveyor 19 of the

Systems 21 for further processing after a preferably automatic operation of a Makulaturweiche 26 a waste container 24 supplied.

The respective rotation of the printing cylinder of the at least one printing unit 1 1 and the respective rotation of the cylinder of the folder 01, d. H. z. B. of

Cutting cylinder 02, the Punktur- and folding knife 03 and the Jaw cylinder 04, are preferably controlled by signals which are communicated in a virtual, preferably electronic master axis 29 of the printing press 16 (FIG. 2). The respective rotation of the printing cylinder of at least one printing unit 1 1 and the respective rotation of the cylinder of the folder 01 are matched by means of at least one control unit 31 by the signals communicated in the virtual master axis 29 of the printing press 16 signals and z. B. synchronized with each other. The at least one control unit 31 for controlling the respective rotation of the printing cylinder of the at least one printing unit 1 1 and the respective rotation of the cylinder of the folder 01 is thus connected to the virtual leading axis 29 of the printing press 16 data technology.

The respective printing cylinder of the at least one printing unit 1 1 rotate during a printing of this at least one printing unit 1 1, d. H. during their normal production, with z. B. tens of thousands of revolutions per hour. The production speed of the printing press 16 defined by the rotation of the printing unit cylinders of the at least one printing unit 1 1 corresponds to a transport speed v06 of the printing press 16 guided by this printing press 16

Substrate 06. After a print job has been processed, the rotating printing cylinder cylinders involved in the current production of the at least one printing unit 1 1 are decelerated, preferably to their standstill. Starting from the previously driven during the production speed production speed, the respective printing cylinder of the at least one printing unit 1 1 when reaching or falling below a certain, z. B. in the range between 1 .500 U / h and 3,000 U / h speed brought into a pressure-off operating position, the respective printing cylinder transferred in their respective print-off operating position no more print image on the substrate 06. After the respective printing cylinder have been brought into their respective print-off operating position, however, there are still some printed on the substrate 06 printed images on their way from the relevant printing unit 1 1 to the folder 01 and some already in the folder 01 produced printed products 07 on their respective way to the display 17 of this folder 01, whereby these printed since the print-off operating position of the respective cylinder printing products 07 are transferred from the display 17 of this folder 01 to the conveyor 19 of the system 21 for further processing , This operating state of the relevant printing unit 1 1 and the folder 01 is referred to as an empty.

Among other things, due to the synchronization of the respective rotation of the printing cylinder involved in the previous production of at least one printing unit 1 1 and the respective rotation of the cylinder of the folder 01 succeeds during idling this transfer of the printed products 07 to the conveyor 19 of the system 21 for further processing but always worse because in particular the respective transport speeds v06; v17; v18; v19 of the guided through the printing machine 16 substrate 06, the display 17 of the folder 01, optionally the feed belt 18 and the conveyor 19 of the system 21 for

Further processing no longer fit together as before during the printing press 16, although it can be provided that at least in the continuous reduction of the transport speed V06 of the. By the

Printing machine 16 guided substrate 06, from which the printed matter 07 are produced, from the folder 01, a current transport speed v06 of the printing material 06 indicative signal to the conveyor 19 of the system 21 for further processing of the printed matter 07 is transmitted. Moreover, it is

basically uneconomical, if since the print-off-operating position of the respective printing cylinder produced, but of their product quality still salable printed matter 07 from the conveyor 19 of the system 21 for

Further processing are transported only in the waste container 24, as it has been common practice, just because at the time of setting the print-off operating position of the respective printing cylinder with respect to the printed products 07 z. B. the printing job underlying production quantity is already met. It is therefore proposed that, below a previously defined value for the production quantity underlying the current print job, and in particular for idling, the transport speed v06 of the printing substrate 06 indicating the transport speed v06 be continuously reduced after the end of the current production, to the

Conveyor 19 of the system 21 for further processing of the printed products 07 transmitted signal regardless of the actual transport speed v06 of the printing material 06 generated by a setpoint generator 27 and transmitted to the conveyor 19 of the system 21 for further processing of the printed matter 07. In this case, the signal generated by the setpoint generator 27 is transmitted preferably for a limited period of time to the conveyor 19 of the system 21 for further processing the printed matter 07, in particular at least until all of the printed matter 07 generated by the printing press 07 from the display 17 of

Folding apparatus 01 are transported away.

Fig. 2 illustrates this method. The folder 01, d. H. the associated control unit, the respective rotation of the cylinder of the folder 01, d. H. z. As the cutting cylinder 02, the Punktur- and folding blade 03 and the

Jaw cylinder 04, controls, and the at least one printing unit 1 1, ie the control unit associated with this printing unit 1 1, which controls the respective rotation of the printing cylinder, are each connected to the virtual leading axis 29 of the printing press 16. In the preferred embodiment, the folder 01, ie the control unit thereof, transmits a preferably digital signal indicating the current transport speed v06 of the printing substrate 06 to a control unit controlling the conveyor 19 of the system 21 for further processing the printed products 07, this signal being sent on its way from Folder 01 to the system 21 for further processing of the printed products 07, z. B. in association with the folder 01, a switching device 28 is arranged. The forwarding of the current Transport speed v06 of the printing material 06 indicating signal to the control unit of the conveyor 19 of the system 21 for further processing of the printed products 07 z. B. in that also this control unit of

Conveyor 19 is connected to the virtual axis of the printing press 16. As long as the transport speed v06 of the printing material 06 is above a predetermined value, the z. B. coming from the folder 01, the current transport speed v06 of the printing substrate 06 indicative signal from the switching device 28 to the conveyor 19 of the system 21 for

Further processing of the printed products 07 preferably forwarded directly. If the transport speed v06 of the printing substrate 06 drops below the predetermined value, the switching device 28 switches to another signal path, whereby the connection, the transmission of the coming of the folder 01 signal to the conveyor 19 of the system 21 for further processing of

Printed products 07 is used, is separated. If the transmission of the signal serving connection between the folder 01 and the conveyor 19 of the system 21 for further processing of the printed products 07 is separated by the switching in the switching device 28 to the other signal path, the setpoint generator 27 supplies the conveyor 19 of the system 21 for further processing the printed products 07 with a transport speed v06 of the printing material 06 simulating signal which is generated by the setpoint generator 27 regardless of the actual transport speed v06 of the printing material 06. For the

Conveyor 19 of the system 21 for further processing of the printed products 07, the change of the signal source, which has occurred due to the changeover in the change-over device 28 to another signal path, preferably remains unnoticed. The supply of the conveyor 19 of the system 21 for further processing of the printed products 07 with that signal which a fictitious and thus independent of the actual transport speed v06 of the printing substrate 06

Transport speed v06 indicates this substrate 06, stops for a limited period of time, in particular at least until all of the printing press 16th generated printed products 07 are removed from the delivery 17 of the folder 01. The value at which the switching device 28 by their switching to the other signal path for the transport speed v06 of the printing material 06 signal indicating the preferably direct connection between the folder 01 and the conveyor 19 of the system 21 for further processing

Printed products 07 separates, z. B. are in an area corresponding to that speed, of those involved in the previous production

Printing cylinders of at least one printing unit 1 1 in the range between

1 .500 U / h and 3,000 U / h is executed.

The transport of the printed products 07 from the delivery 17 of the folding apparatus 01 of the printing press 01 after the folding apparatus 01 downstream conveyor 19 of the system 21 for further processing of the printed products 07 can now be designed such that, in spite of below the previously set value

sunken transport speed v06 of the printing stock 06 the

Transport speed v17 of the delivery 17 of the folder 01 and optionally also the transport speed v18 of the feed belt 18 are initially held at a fixed value, wherein this fixed value in each case z. B. those

Transport speed v17; v18 corresponds, which have adopted the display 17 of the folder 01 and optionally also the feed belt 18 when the

Switching device 28 for the transport speed v06 of the printing material 06 indicative signal preferably direct connection between the folder 01 and the conveyor 19 of the system 21 for further processing of

Print products 07 to the setpoint generator 27 switches as a signal source and the setpoint generator 27 begins to transmit its signal to the conveyor 19 of the system 21 for further processing of the printed matter 07. Furthermore, it can be provided that z. B. at a time t3 (Fig. 3), to which the last printed product 07 is designed by the paddle wheel 09 on the display 17 of the folder 01, the

Transport speed v17 of the display 17 of the folder 01 and optionally Also, the transport speed v18 of the feed belt 18 are raised at least for a limited time even to a much higher value than the previously mentioned fixed value.

Likewise, the transport speed v19 of the conveying device 19 of the system 21 for further processing of the printed products 07 can initially be kept at a fixed value, despite the transport speed v06 of the printing material 06 falling further below the previously defined value, this value also being

Transport speed v19 of the conveyor 19 of the system 21 for

Further processing of the printed products 07 z. B. may correspond to that value that this conveyor 19 of the system 21 for further processing of

Printed matter 07 at the time when the

Switching device 28 for the transport speed v06 of the printing material 06 signal indicating the connection between the folder 01 and the

Conveyor 19 of the system 21 for further processing of the printed products 07 to the setpoint generator 27 switches as a signal source and the setpoint generator 27 begins to transmit its signal to the conveyor 19 of the system 21 for further processing of the printed matter 07. After the last of the display 17 of the folder 01 coming printed product 07 has reached the conveyor 19 of the system 21 for further processing of the printed products 07 and there z. B. was taken from one of the arranged on the transport chain 22 gripper 23, it can be provided that the transport speed v19 of the conveyor 19 of the system 21 for further processing of the printed matter 07 at least for a limited time to a higher value, eg. B. is raised to its double value, so that printed products 07 faster z. B. the mailroom or, if necessary, the waste container 24 are supplied.

3 shows three diagrams a), b) and c) for illustrating a time behavior of the respective transport speeds v06; v17; v18; v19 of which by the Printing machine 16 guided substrate 06, from the z. B. as a circulating belt formed display 17 of the folder 01 and optionally a feed belt 18 and the conveyor 19 of the system 21 for further processing of the printed products 07. The passage of time t is exemplified in several successive sections A; B; C; D; E articulated. In the first section A, the at least one printing unit 1 1 of the printing machine 16 runs at its production speed in the continuous printing. For example, upon reaching the current print job underlying production quantity for the printed products 07 to be produced at time t1 z. B. the control unit 31, the transport speed v06 of

To reduce printing stock 06 continuously. In the beginning at the time t1 second section B is started, the speed of the pressure cylinder involved in this production and the speed of the cylinder 01 arranged in the folding cylinder preferably synchronously to reduce their respective standstill. Before the

Achieving their stoppage will be the ones involved in this production

Printing cylinder at time t2 brought into their respective print-off operating position, so that the respective printing cylinder no longer can transfer print image on the substrate 06. This time t2 corresponds to a speed of the printing cylinder involved in this production in the range z. From 1, 500 U / h and 3,000 U / h. At the time t2, the transmission of the signal indicating the current transport speed v06 of the printing material 06 to the conveyor 19 of the system 21 for further processing of the printed products 07 is interrupted by the switching device 28 and the setpoint generator 27 begins to simulate the transport speed v06 of the printing material 06 to the signal To convey conveyor 19 of the system 21 for further processing of the printed matter 07. Until then, the current transport speed v06 of the printing substrate 06 indicating signal z. B. from the folder 01 preferably directly by means of a pure passage through the switching device 28 to the conveyor 19 of the system 21 for

Further processing of printed products 07 passed. After the switching device 28, the transmission of the current transport speed v06 of the printing 06 indicating signal to the conveyor 19 of the system 21 for further processing of the printed products 07 has interrupted, the actual

Transport speed v06 of the printing material 06 further reduced to zero. The transport speed v17, with which printed products 07 are transported on the delivery 17 of the folding apparatus 01, if necessary also the transport speed v18 of the delivery belt 18 and the transport speed v19 of the conveyor 19 of the system 21 for further processing of the printed products 07 are not further proportional to the transport speed v06 of FIG Substrate 06 is lowered, but kept constant at least for a certain time to a fixed value, which is shown in a third section C of Fig. 3. The duration of this third section C may exceed the time at which the printing cylinder cylinders involved in the previous production reach their respective standstill. The end of the third section C may be characterized in that at this time t3 the paddle wheel 09, the last printed in the folder 01 and folded printed product 07 on the display 17 of the folder 01 interprets. From the point in time t3, the transport speed v17 of the delivery 17 of the folder 01 and optionally also the transport speed v18 of the delivery belt 18 are raised at least for a limited time to a significantly higher value than the aforementioned fixed value, whereby a fourth section D is introduced. The value of the raised transport speed vi 7 of the delivery 17 of the folder 01 and optionally also the value of the raised transport speed v18 of the feed belt 18 can each z. B. be five times or up to ten times their respective initial speed. After the last of the delivery 17 of the folder 01 coming printed product 07 has reached the conveyor 19 of the system 21 for further processing of the printed products 07, and the transport speed v19 of the conveyor 19 of the system 21 for

Further processing of the printed products 07 are raised to a higher value, for. B., this transport speed v19 can be doubled, z. From 10,000 revolutions per hour to 20,000 revolutions per hour. At the end of the fourth Section D are at time t4, the transport speed v17 of the display 17 of the folder 01 and possibly also the transport speed v18 of the feed belt 18 is reduced to zero. After the conveyor 19 of the system 21 for further processing of the printed products 07 has transported away all belonging to the previous print job printed matter 07, this conveyor 19 in a fifth section E z. B. be brought to a standstill.

LIST OF REFERENCE NUMBERS

01 folder

02 cutting cylinder

03 Puncture and folding blade cylinder

04 jaw cylinder

05 -

06 substrate

07 unit; Printed Media

08 band system

09 paddle wheel

10 -

1 1 printing unit

12 transfer cylinders

13 form cylinder

14 inking unit

15 -

16 printing press

17 display

18 feeding belt

19 conveyor

20 -

21 System for further processing

22 transport chain

23 grippers

24 waste containers

25 -

26 waste macros

27 setpoint generator Switching device master axis

control unit

Time

time

Transport speed Transport speed Transport speed Transport speed

section

Claims

claims

1 . Method for controlling a transport from in a printing machine (16)

produced printed products (07), wherein the printed products (07) from a delivery (17) of a folding apparatus (01) of this printing press (16) downstream of the folding apparatus (01) conveyor (19) of a system (21) for further processing of the printed products ( 07) are transported, wherein at least in a continuous reduction of a transport speed (V06) of a printing press (16) guided printing material (06) from which the printed products (07) are produced, the current

Transport speed (V06) of the printing material (06) indicating signal to the conveyor (19) of the system (01) for further processing of this

Printed products (07) is transmitted, wherein below a predetermined value for the continuously decreasing transport speed (v06) of the printing material (06) indicating this transport speed (v06) to the conveyor (19) of the system (01) for further processing of

Printed products (07) signal independently of the actual transport speed (v06) of the printing material (06) generated by a setpoint generator (27) and to the conveyor (19) of the system (21)

Further processing of the printed products (07) is transmitted.

2. The method according to claim 1, characterized in that the setpoint generator (27) generated signal for a limited period of time to the conveyor (19) of the system (21) for further processing of the printed products (07) is transmitted.

3. The method according to claim 1 and / or 2, characterized in that the setpoint generator (27) generated signal at least as long as the conveyor (19) of the system (21) for further processing of the printed products (07) is transferred until all of the printing press (16) generated printed products (07) are removed from the delivery (17) of the folder (01).

4. The method of claim 1 and / or 2 and / or 3, characterized in that the current transport speed (v06) of the printing material (06)

indicating signal using a virtual master axis (29) of the

Printing machine (16) to the conveyor (19) of the system (21) for

Further processing of the printed products (07) is communicated.

5. The method according to claim 1 and / or 2 and / or 3 and / or 4, characterized

characterized in that the current transport speed (v06) of the

Substrate (06) indicating signal using a

Switching device (28) to the conveyor (19) of the system (21) for further processing of the printed products (07) is passed.

6. The method according to claim 5, characterized in that the switching device (28) serving a transmission of the signal connection between the

Folder (01) and the conveyor (19) of the system (21) for

Further processing of the printed products (07) separates and switches to the setpoint generator (27) as a signal source when the transport speed (v06) of the

Substrate (06) falls below the previously defined value.

7. The method according to claim 5 and / or 6, characterized in that the value at which the switching means (28) switches to the setpoint generator (27) as a signal source for the transport speed (v06) of the printing material (06) indicative signal in an area corresponding to a speed which is performed by participating in the previous production printing cylinders of a printing unit (1 1) of the printing press (16) in the range between 1 .500 U / h and 3,000 U / h.

8. The method according to claim 5 and / or 6 and / or 7, characterized in that despite the sunken below the predetermined value

Transport speed (v06) of the printing material (06) a

Transport speed (v17), with which printed products (07) on the delivery (17) of the folder (01) are transported, and / or a

Transport speed (v19) of the conveyor (19) of the system (21) for further processing of the printed products (07) are each kept at a fixed value.

9. The method according to claim 8, characterized in that at a time at which the last printed product (07) on the display (17) of the folding apparatus (01) is designed, the transport speed (v17) of the display (17) of the

Folding apparatus (01) is raised to a value higher than the aforementioned fixed value.

10. The method according to claim 8 and / or 9, characterized in that the

Transport speed (v19) of the conveyor (19) of the system (21) for further processing of the printed products (07) is raised to a higher value after the last of the delivery (17) of the folder (01) coming printed product (07) the conveyor ( 19) of the system (21) for

Further processing of the printed products (07) has reached.