DE102012215491A1 - Processing machine and method for operating a processing machine - Google Patents

Abstract

The invention relates to a processing machine and a method for operating a processing machine. The invention is based on the object to provide a processing machine and a method that allows an automated drying process in a processing machine. This is achieved by supplying data relating to the subject to the control station 16 for a processing job and, taking this data into account, signals from the control station 16 to the control device 14 and from the control device 14 a respective radiation / drying device 6 over the format width of the printing material Consideration of the subject zonal activated and activated or deactivated.

Description

The invention relates to a processing machine and a method for operating a processing machine, preferably a rotary printing press, with at least one radiation / drying device according to the preamble of the independent claims. Such a processing machine may comprise at least one printing unit and / or coating unit or at least one application plant or be formed by coating units.

EP 1 142 711 A1 discloses a printing machine with at least one printing unit and / or a coating unit for the processing of a printing material, in particular sheet material. The printing machine comprises a control and signal technology coupled to a control station control device and at least one switching and signaling technology coupled to the control device radiation / drying device. At least one signal of a variable characterizing the processing process can be fed to the control device and the control device is provided for individually controlling the respective radiation / drying device.

From the post-published DE 10 2010 046 756 A1 is a dryer module with a blast nozzle unit for heated blast air and preferably a radiator unit with at least one infrared radiator (IR emitter) known. Transversely to the conveying direction of the sheet or web material to be dried, the module width of the dryer module is approximately an integral fraction of the maximum format width. Thus, at least two juxtaposed arranged transversely to the conveying direction dryer modules are provided.

The invention is based on the object to provide a processing machine and a method of the type mentioned, which or allows an automated drying process in a processing machine.

The object is achieved by the training features of the independent claims 1 and 5. Further developments emerge from the dependent claims.

A first advantage is based on the fact that the drying process of printing ink and ink, varnish, including paint or varnish for non-impact printing devices, and / or adhesive etc. can be realized more energy-efficiently in the processing machine, by taking into account in particular the subject of printing ink, Paint, varnish and / or adhesive, etc. a respective radiation / drying device can be activated or deactivated. Preferably, data relating to the subject are supplied to a control station of the processing machine for a processing job, and taking this data into account, signals are supplied from the control station to a controller. The control device activates or deactivates a respective radiation / drying device zonally, at least over the format width of the printing substrate, taking the subject into consideration. Alternatively, the signals from the control station via a machine control of the control device for a respective radiation / drying device can be fed.

The machine control represents the information center of the processing machine and may include a programmable logic controller (PLC). Information is transmitted and processed in the form of signals to this machine controller, and this machine control ensures the information flow to the individual works (printing unit, coating unit, delivery arm, film transfer unit) of the processing machine. The machine control system can be of modular construction and, moreover, can be in operative connection with other devices, such as the control station and / or a job control station and / or a machine network, in terms of circuitry and signal technology. Depending on the machine configuration, the machine control may be indirectly, e.g. via the control room, or directly, e.g. be in operative connection via the control device for a respective radiation / drying device circuit and signal technology. In this case, a drying cabinet with corresponding control device can be provided for at least one radiation / drying device and at least one interface (for example CANopen or MAVO). Such a drying cabinet (with control device) may also be in operative connection with the control station and signaling technology.

In a further advantageous embodiment, a respective radiation / drying device in the circumferential direction or format length of the printing material can be controlled zonally and activated or deactivated taking into account the subject. Thus, for example, the respective activated radiation / drying device to be disabled at the passage of a leading sheet material at the sheet end and at passage of the sheet beginning of a trailing sheet material, the deactivated radiation / drying device can be reactivated or be. In a further development, in the case of a sheet guiding cylinder with at least one cylinder channel, a respective radiation / drying device can also be activated and deactivated taking into account the cylinder channel passage. For example, the respective radiation / Drying device be disabled when passing through a cylinder channel across the width of the sheet guiding cylinder and be reactivated after the passage of the cylinder channel.

As a second advantage, in addition to the more energy efficient procedure, the radiation / drying devices are improved, i. H. Long life can be achieved by selectively taking into account the subject only the necessary components of the radiation / drying devices are activated or deactivated. This also results in a reduced energy input, in particular heat input, in the substrate. This is particularly gentle on sensitive substrates. The respective substrate can be processed without distortion with the perfect register, so that a contribution to the improvement of the print quality can be achieved. Advantageously, the usual machine speeds can be maintained or increased in the processing process in the energy-efficient procedure. In a further development, radiation / drying devices and sheet guiding devices and / or impression cylinders (sheet guiding cylinders) can each be in operative connection with cooling devices. For example, an impression cylinder can be cooled from inside and / or outside. In this embodiment, the cooling devices can be zonal controlled taking into account the subject and be activated or deactivated.

A third advantage is that the respective radiation / drying device within the processing machine can be controlled zonally and activated or deactivated individually taking into account the subject or partial jet. Furthermore, according to one aspect, a respective radiation / drying device can be controlled and activated or deactivated in accordance with the frequency of a subject (or partial jet) recurring in a defined zone. According to a further aspect, depending on the type of printing ink, ink or ink for non-impact printing devices (color type), the paint (paint type) or the adhesive, the respective radiation / drying device zonally controlled and activated or deactivated. The term printing ink or paint also includes, for example, opaque white or primer or paint or varnish for non-impact printing devices.

According to a further aspect, the respective radiation / drying device can be zonally actuated and activated or deactivated after the application quantity of the printing ink or the paint, the paint or the adhesive.

According to a further aspect, a respective radiation / drying device can be zonal actuated and deactivated, taking into account the order of processing of the printing ink, the paint, the paint or the adhesive. For example, first as infrared dryer (IR dryer) and / or thermo-air (hot / hot air) dryer (TL dryer) trained radiation / drying equipment and then as ultraviolet dryer (UV dryer) trained radiation / Drying device can be controlled. The term "radiation / drying device" also includes electron beam dryers.

In a further embodiment, the radiation / drying devices can be controlled differently and activated or deactivated in the printing units and / or coating units of the processing machine or printing machine for multi-color printing, taking into account the color separation to be processed in the respective work or the Lackart. For example, the color separation "black" can be processed in the first work and the color separation "yellow" in the third work, whereby the radiation / drying devices associated with the first and third works can be activated or deactivated differently.

Depending on the type of radiation / drying device used, in particular the medium to be processed, such as printing ink, ink, lacquer and adhesive etc., for example, on the part of the manufacturer on the spectrum of the specific wavelengths of the radiation / drying devices tuned. This is particularly relevant for radiation-curing media in conjunction with the respective UV or electron beam radiation / drying device.

The invention will be explained in more detail using an exemplary embodiment. Here are shown schematically:

1 a sheet-fed printing press with printing / coating units and radiation / drying devices,

2 a substrate with a special subject (in plan view).

1 shows as a processing machine a sheet-fed rotary printing press, with at least one printing unit I and at least one in the conveying direction 5 of the substrate 18 , here a sheet material, downstream coating unit II , In the present example are the printing units I each formed as an offset printing units, which in known manner a printing form cylinder 1 (Plate cylinder), a blanket cylinder 2 (Transfer cylinder), an inking unit 3 and if necessary, a dampening unit 4 include. The blanket cylinder 2 is with a sheet guiding cylinder 7 in operative connection, which is designed here as an impression cylinder. Blanket cylinder 2 and sheet guiding cylinder 7 are known to form a pressure zone. In conveying direction 5 of the printing material 18 , especially of the sheet material, can after the printing zone a radiation / drying device 6 be provided, which to the sheet guiding cylinder 7 (Impression cylinder) is arranged at a defined distance.

The sheet guiding cylinder 7 (Impression cylinder) of the printing unit I is in the conveying direction 5 of the printing material 18 another sheet guiding cylinder 8th , designed here as a transfer cylinder, downstream, with the sheet guiding cylinder 8th at a distance a sheet guiding device 9 , preferably with pneumatic support, is arranged adjacent. The sheet guiding cylinder 7 . 8th have sheet holding means, which are preferably designed as grippers and / or suckers.

The coating plant II includes a sheet guiding cylinder 7 with sheet holding means, which is designed here as a counter-pressure cylinder. The sheet guiding cylinder 7 is a printing block cylinder 1 , which may preferably carry a flexographic printing plate or a blanket, assigned and both cylinders 7 . 1 form a Druckbzw. Painting zone. The coating plant II includes a the printing form cylinder 1 associated metering device 12 , For example, a chambered doctor blade with rinsed applicator roll and a conduit system for a medium, in particular paint, paint or cleaning fluid. The sheet guiding cylinder 7 (Impression cylinder) of the coating unit II can - as with the printing units I A radiation / drying device 6 be arranged adjacent.

In a further embodiment, at least one printing unit I and / or a coating unit II or if necessary, a film transfer plant IV each having a non-impact printing device, for example as an ink-jet printing device. Such non-impact printing devices are preferably in a defined distance from the impression cylinder 7 of the respective work I . II . IV arranged and can, taking into account the subject of a control room 16 or a machine control 15 be controlled and activated or deactivated.

In conveying direction 5 of the printing material 18 is the coating plant II a boom III downstream. For sheet transport, the boom comprises III a sheet guiding cylinder 7 (Impression cylinder) of the coating unit II downstream sheet guiding cylinder 8th , as a transfer cylinder, with sheet guiding device 9 and a sheet guiding cylinder 8th downstream sheet guiding cylinder 7 , as an impression cylinder, or alternatively a sheet guiding cylinder 8th in training as a transfer cylinder. To sheet guiding cylinder 7 , alternatively sheet guiding cylinder 8th , at a distance, a radiation / drying device 6 be arranged adjacent. For the sheet delivery includes the boom III a circulating conveyor 11 for the substrate 18 , especially the sheet material, for storage on a delivery pile 10 , Such a conveyor 11 can be formed in a known manner as traction mechanism with arranged at intervals thereon sheet holding means, in particular gripper systems. The substrate 18 is from the sheet holding means in a conveying plane in the direction of the delivery pile 10 transported and braked shortly before the storage of a sheet braking device. Above the conveying level of the substrate 18 can at least one radiation / drying device at a distance 6 be provided. Below the conveying plane can at a distance a sheet guiding device 9 , if necessary with pneumatic support, as well as a sheet braking device 13 be arranged. The sheet guiding device 9 can in particular in the field of radiation / drying device 6 be cooled, for example by means of known cooling channels.

The respective radiation / drying device 6 can be designed as an ultraviolet dryer (UV dryer) or electron beam dryer or infrared dryer (IR dryer) or thermo-air (hot / hot air) dryer (TL dryer). Alternatively, such combinations can also be realized.

In another training, as in 1 shown a film transfer work IV be provided as an application. This film transfer plant IV may preferably be formed as a cold foil transfer work. Such a cold foil transfer plant is for example out DE 10 2009 002 810 A1 known. The foil transfer plant IV Here is the printing unit I , alternatively a coating unit II , for imagewise application of adhesive in the conveying direction 5 upstream. The foil transfer plant IV includes a sheet guiding cylinder 7 in training as an impression cylinder and one with the sheet guiding cylinder 7 a press nip forming another cylinder 1 or 2 , which, for example, as a plate cylinder 1 or blanket cylinder 2 may be formed with at least one cylinder channel. In conveying direction 5 the press nip is a radiation / drying device 6 downstream, which to sheet guiding cylinder 7 is arranged in a defined distance. Taking into account the adhesive used, the cold foil material and / or the printing substrate 18 can the respective radiation / drying device 6 in particular as an ultraviolet dryer (UV dryer) or electron beam dryer, alternatively as an infrared dryer (IR dryer) or as a thermo-air (hot / hot air) dryer (TL dryer) or combinations thereof may be formed. In a further development, the radiation / drying device 6 be activated or deactivated in combination with the transport cycle of the film material.

The foil transfer plant IV comprises in a conventional manner a film supply roll 23 and a foil collecting roll 24 , The method of film transfer is in DE 10 2009 002 810 A1 disclosed.

The processing machine comprises in addition to the at least one printing unit I and / or the at least one coating unit II and possibly the film transfer plant IV a switching and signaling technology, at least with a control room 16 coupled control device 14 , which switching and signaling technology with at least one, preferably with all radiation / drying devices 6 is coupled.

The control device 14 At least one signal can be supplied to a variable characterizing the processing process, wherein the control device 14 for individually controlling the respective radiation / drying device 6 is provided.

In an education, the control center 16 a job center 17 be upstream, which with the control room 16 is coupled switching and signaling technology.

The control room 16 are for each processing job data related to a respective subject 19 can be fed and taking into account these data are signals from the control center 16 the control device 14 fed. From the control device 14 is a respective radiation / drying device 6 over a format width 21 of the substrate 18 considering the subject 19 can be controlled zonally and activated or deactivated accordingly. In a further embodiment, the radiation / drying device 6 additionally in the circumferential direction, ie in the conveying direction 5 , by means of control device 14 be controlled and accordingly activated or deactivated. For example, in the circumferential direction zonal the format length of the printing substrate 18 and the corresponding radiation / drying device 6 be activated.

Between the end of the format (trailing edge of the substrate 18 ) and the following substrate 18 (Leading edge of the substrate 18 ), the corresponding radiation / drying device 6 be deactivated zonally. Subsequently, the radiation / drying device is or can 6 be activated again etc. For bow guiding cylinders 8th . 9 with at least one cylinder channel, this procedure can also be realized.

In one embodiment, the respective radiation / drying device 6 designed and controlled so that at UV, electron beam and IR dryers on the format width 21 arranged segments 20 are provided, which are formed by beam / light means (hereinafter referred to as lighting means).

Taking into account the subject 19 these segmented light sources are zonal at least by the control device 14 can be controlled and accordingly activated or deactivated.

The lighting means may be formed, for example, as an LED (light-emitting diode) and generate an infrared radiation or an ultraviolet radiation or electron radiation of respectively corresponding wavelength.

In a further embodiment, the respective radiation / drying device 6 designed and controlled so that TL dryers on the format width 21 arranged segments 20 are provided, which include including nozzles for the hot air / hot air passage. Taking into account the subject 19 these segmented nozzles are zonal at least by the control device 14 can be controlled and accordingly activated or deactivated.

In a further development may additionally by the control device 14 a respective radiation / drying device 6 in the circumferential direction, ie in the conveying direction 5 of the substrate 18 , taking into account the subject 19 zonal activated and activated or deactivated.

2 shows an example of a section of a substrate 18 , which is a subject 19 , here by the Teilujets 19.1 and 19.2 formed, comprising.

About the format width 21 is at a distance to the substrate 18 a radiation / drying device 6 arranged, which by a plurality of individually arranged segments 20 is formed. Taking into account the subject 19 are the segments 20 in the field of Teilujets 19.1 and 19.2 activated and with the reference numeral 20 ' Mistake. On the other hand, the unactivated segments 20 with the reference number 20 Mistake.

In the circumferential direction, ie in the conveying direction 5 of the substrate 18 , considered is the partial subject 19.1 only once available. It may be advantageous, the segments 20 after the passage of the single part 19.1 at the radiation / drying device 6 to disable.

In contrast, the partial subject 19.2 several times and in the conveying direction 5 recurring available. It may be advantageous, the segments 20 to keep it constantly activated.

The working procedure is as follows: The control room 16 For a respective processing job, if necessary also for a subsequent processing job or further processing jobs, data relating to the subject 19 fed and taking into account this data are signals from the control room 16 from the control device 14 fed. From the control device 14 becomes a respective radiation / drying device 6 within the processing machine over the format width 21 of the substrate 18 considering the subject 19 zonal activated and activated or deactivated.

In a further embodiment, the signals from the control room 16 via a machine control 15 to the control device 14 be supplied.

The processing machine comprises at least one signal generator 22 for the machine speed and / or the angular position of the relevant cylinders. These signalers 22 are switching and signal technology with the machine control 15 coupled, the machine control 15 from the at least one signal generator 22 generated signals are fed directly.

In a further embodiment of the control device 14 a respective radiation / drying device 6 in the circumferential direction, ie in the conveying direction 5 of the substrate 18 , taking into account the subject 19 zonal be activated and activated or deactivated accordingly.

In the processing machine also different radiation / drying devices can 6 Be provided, for example, TL dryer in combination with IR dryers or IR dryers in combination with UV dryers, etc., which can be operated by the above procedure.

In an education, the control center 16 a job center 17 be upstream, which with the control room 16 is coupled switching and signaling technology. From this job center 17 can the data regarding the subject 19 the control room 16 be supplied.

LIST OF REFERENCE NUMBERS

1

Plate cylinder

2

Blanket cylinder

3

inking

4

dampening

5

conveying direction

6

Radiation / dryer

7

Sheet guiding cylinder (impression cylinder)

8th

Sheet guiding cylinder (transfer cylinder)

9

sheet guiding device

10

delivery pile

11

Conveyor

12

metering

13

Sheet braking mechanism

14

control device

15

machine control

16

control station

17

mission control center

18

substrate

19

subject

20

segment

21

size width

22

signaler

23

Film supply roll

24

Foil composite role

I

printing unit

II

coating unit

III

boom

IV

Film transfer unit

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• EP 1142711 A1 [0002]
• DE 102010046756 A1 [0003]
• DE 102009002810 A1 [0024, 0025]

Claims (10)

Method for operating a processing machine, comprising at least one printing unit ( I ) or a coating unit ( II ) for processing a substrate ( 18 ) with a switching and signaling technology with a control station ( 16 ) coupled control device ( 14 ) and at least one switching and signaling technology with the control device ( 14 ) coupled radiation / drying device ( 6 ), wherein the control device ( 14 ) at least one signal is supplied to a variable characterizing the processing process, and the control device ( 14 ) for individually controlling the respective radiation / drying device ( 6 ), characterized in that the control room ( 16 ) for a processing job data concerning the subject ( 19 ) and taking into account these data signals from the control center ( 16 ) of the control device ( 14 ) and that the control device ( 14 ) a respective radiation / drying device ( 6 ) over the format width ( 21 ) of the printing substrate ( 18 ) taking into account the subject ( 19 ) zonal and activated or deactivated. Method according to Claim 1, characterized in that the signals from the control station ( 16 ) via a machine control ( 15 ) to the control device ( 14 ). Method according to claim 2, characterized in that the machine control ( 15 ) of at least one of the processing machine associated signal generator ( 22 ) generated signals are fed directly. Method according to claim 1, characterized in that the control device ( 14 ) a respective radiation / drying device ( 6 ) in the circumferential direction / conveying direction ( 5 ) of the printing substrate ( 18 ) taking into account the subject ( 19 ) zonal and activated or deactivated. Processing machine comprising at least one printing unit ( I ) or a coating unit ( II ) for processing a substrate ( 18 ) with a switching and signaling technology with a control station ( 16 ) coupled control device ( 14 ) and at least one switching and signaling technology with the control device ( 14 ) coupled radiation / drying device ( 6 ), wherein the control device ( 14 ) at least one signal can be fed to a variable characterizing the processing process, and the control device ( 14 ) for individually controlling the respective radiation / drying device ( 6 ), characterized in that the control room ( 16 ) for a processing job data concerning the subject ( 19 ) and, taking these data into account, signals from the control console ( 16 ) of the control device ( 14 ) and that the control device ( 14 ) a respective radiation / drying device ( 6 ) over the format width ( 21 ) of the printing substrate ( 18 ) taking into account the subject ( 19 ) zonal is controllable and can be activated or deactivated. Processing machine according to claim 5, characterized in that the radiation / drying device ( 6 ) is a UV dryer or an electron beam dryer. Processing machine according to claim 5, characterized in that the radiation / drying device ( 6 ) is a thermo-air dryer. Processing machine according to claim 5, characterized in that the radiation / drying device ( 6 ) is an IR dryer. Processing machine according to claim 5, characterized in that the control device ( 14 ) a respective radiation / drying device ( 6 ) in the circumferential direction of the printing substrate ( 18 ) taking into account the subject ( 19 ) zonal controllable and activated or deactivated. Processing machine according to claim 6, characterized in that the radiation / drying device ( 6 ) comprises a plurality of LED (light-emitting diode) lights.

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