ES2529592T3 - Control method for a rotary printing machine - Google Patents

Abstract

Control method for a rotary printing machine, with several printing units (12), particularly offset printing units, for static printing at least one surface of the print support band of at least one print support band (14 ) with a print arrangement that is the same for all printed copies, each printed copy comprising several printed pages (18) which, depending on an imposition and band guide scheme, are printed on the or each print support band surface of the or each print support band (14), and with at least one processing equipment (17), particularly with at least one inkjet printing equipment (17) for dynamically printing at least one band of printing support (14) with a variable printing arrangement for at least some printed copies, and with a control equipment, characterized in that the control equipment, which controls whether at a desired position (19) on a print support band surface of a print support band (14), respectively at a desired position (19) on a printed page (18), processing with a processing equipment, particularly a printing with an inkjet printing equipment (17), taking into account the configuration of the rotary printing machine, then enabling, if the control equipment verifies in that case that the processing with an equipment processing, particularly printing with an inkjet printing device (17), it is possible in the desired position, the control equipment processing with an appropriate processing equipment, particularly dynamic printing with a jet printing equipment of ink (17) appropriate.

Description

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DESCRIPTION

Control method for a rotary printing machine

The invention relates to a control method for a rotary printing machine according to the preamble of claim 1.

Rotary printing machines have several printing units for static printing of at least one print support web surface of at least one print support web with a print arrangement that is the same for all printed copies. Each printed copy typically comprises several printed pages. Printing units of this type that are used to statically print the or each print support band are usually manufactured as offset printing units. In the same way it is possible that the printing units of this type are manufactured as gravure printing units.

In printing machines known in practice, it is already usual to provide, in addition to the printing units that are used to statically print the or each print support band with a print arrangement that is the same for all printed copies, at least one processing equipment particularly to individualize the printed copies. In the case of such processing equipment, it may be an inkjet printing equipment for printing with a variable, therefore dynamic, printing arrangement for at least some printed copies, at least one web surface of print media of at least one print media band. In addition, in the case of such a processing equipment, it may be a varnishing or bonding equipment or a laser cutting equipment or a sheet transfer equipment or a drilling or printing equipment for RFID or odoriferous substances or invisible ink or something similar. In this case, the integration of the control technique of the or of each processing equipment into the rotary printing machine has not been solved so far.

US 5 906 156 discloses a rotary printing machine with inkjet equipment as additional equipment.

Starting from this, the invention is based on the objective of creating a novel control method for a rotary printing machine. That objective is achieved by the control method according to claim 1.

According to the invention, the rotary printing machine comprises a control device that automatically controls whether in a desired position on a print support band surface of a print support band, respectively in a desired position on a printed page, it is possible a processing with a processing equipment, particularly a printing with an inkjet printing equipment taking into account the configuration of the rotary printing machine, then enabling, if the control team verifies in that case that the processing with a printing equipment processing, particularly printing with an inkjet printing device, is possible in the desired position, the control equipment processing processing with an appropriate processing equipment, particularly dynamic printing with an inkjet printing equipment appropriate.

The rotary printing machine according to the invention comprises a control equipment for integrating, on the control side, at least one processing equipment preferably formed as inkjet printing equipment into the rotary printing machine. Depending on a desired position of the processing to be performed by a processing equipment on a printing support band surface of a printing support band, the control equipment automatically controls whether processing with a processing equipment is possible in the position desired considering the configuration of the rotary printing machine. Only then, if the control team verifies that processing with a processing equipment is possible in the desired position, does the control equipment enable processing with an appropriate processing equipment. If, on the other hand, it is verified that with any processing equipment processing in the desired position is possible, the control equipment generates an error message. In this way it is possible to integrate in a simple and reliable way, on the control side, processing equipment, such as, p. eg inkjet printing devices, in rotary printing machines.

Preferably, a printer prefixes manually or a prepress system automatically prefixes the desired position for processing as a relative position with respect to a printed page, thereby determining the control equipment automatically the desired position as an absolute position with with respect to the print support web surface of a print support web.

Further substitutions of the invention result from the subclaims and the following description. An example of manufacturing the invention is explained, without being limited thereto, in detail based on the drawing. In this case they show:

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Figure 1: a schematic cut-out of a rotary printing machine in side view, and

Figure 2: A detail of the cutout of Figure 1 in top view.

The invention is described below with reference to Figures 1 and 2 for the preferred application case of the integration of a processing equipment, which is formed as inkjet printing equipment, into a rotary printing machine. However, the invention is not limited to that case of application. In the sense of the invention, other processing equipment, such as a varnishing or bonding equipment or a laser cutting equipment or a sheet transfer equipment or a printing equipment, may also be integrated into a rotary printing machine. perforation or printing equipment for RFID or odoriferous substances or invisible ink or something similar.

Figure 1 shows a schematic cut-out of a rotary printing machine, which is formed as a newspaper printing machine, in the area of an arrangement 10 of two printing units 11, 12 positioned vertically one above the other. An arrangement 10 of this type is also called a printing tower.

The two printing units 11, 12 of the arrangement 10 each have four printing mechanisms 13, being able to print in the area of each printing unit 11, 12 a print media 14 in the form of a band, which is transported in a vertical direction by the printing units 11, 12, on both sides, that is, in the area of both surfaces of the printing support band. The printing units 11, 12 are used to static print the print support band 14 with a print arrangement that is the same for all printed copies. Each printed copy comprises several printed pages. The printing mechanisms 13 of the printing units 11, 12 are preferably manufactured as offset printing mechanisms. It is also possible that they are manufactured as gravure printing mechanisms. After printing the print support band 14 in the area of the printing units 11, 12 of the print tower 10, the print support band 14 is deflectable on a diverter roller 15 such that, then of the diverter roller 15, the print support band 14 is essentially transported horizontally in the direction of the arrow 16 to thereby feed the print support band 14 statically printed preferably to a processing equipment that is shaped as a computer ink jet printing 17 and which serves to dynamically print the print support band 14 on a print support band surface with a print arrangement that is variable for at least some printed copies, respectively some printed pages. In this way it is possible to individualize the static printing arrangement generated in the printing units 11, 12.

According to the invention, the rotary printing machine comprises a control device not shown. The control equipment automatically controls whether at a desired position on the print support band surface of the print support band 14, respectively at a desired position on a printed page, printing with the jet printing equipment is possible of ink 17 taking into account the configuration of the rotary printing machine. The desired position of dynamic printing with inkjet printing equipment 17 in the printed copy, e.g. For example, in a newspaper or a catalog, it is preset by a printer as a relative position with respect to a defined printed page 18 of the printed copy, the control equipment automatically determining the position as an absolute position with respect to a web surface print media of the print media band 14.

Then, if the control team verifies that printing with the inkjet printing equipment 17 is possible in the desired position, the control equipment enables printing with the inkjet printing device. Then, on the contrary, if the control equipment verifies that printing is not possible in the desired position with the inkjet printing equipment 17, the control equipment automatically generates an error message.

Figure 2 shows in top view the surface of the print support band of the print support band 14 to be printed in the area of the inkjet printing equipment 17, being printed on the print support band 14, seen transversely to the transport direction (arrow 16) of the print support band 14, in each case exemplary form four printed pages 18 next to each other. In a position 19 within a printed page 18 it is intended to energize the static printing arrangement of that printed page 18 with the help of the inkjet printing equipment 17. The position established by a printer relative to the printed page 18 is analogous, taking into account an imposition and web guide scheme for the print support web surface of the print support band 14, to an absolute position on the print support web surface. The control team determines that absolute position. Depending on the type of production desired, the desired position is, seen in the direction of transport (arrow 16) of the print support band 14, on each printed page 18 or on each printed page 18.

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As already described, the control equipment not shown automatically determines, taking into account the configuration of the rotary printing machine, if a dynamic printing in that position 19 is possible with the help of the inkjet printing equipment 17. In the case of a stationary inkjet printing equipment, this is only possible if the inkjet printing equipment covers the section of the print support web surface of the print support web 14, on which it reaches find position 19 according to the imposition and guidance scheme used.

According to Fig. 2, the inkjet printing equipment 17 can be positioned displaceably on a crossbar 20 in the direction of the double arrow 21 transversely to the transport direction of the print support band 14, so that the inkjet printing device 17 can cover and, consequently, dynamically print any area of the print support web surface of the print support web 14 and thus each printed page 18. Depending on the desired position for dynamic printing, the control equipment not shown automatically moves the printing equipment 17, transversely to the transport direction of the print support band 14, to a relative position with respect to the support band of print 14, which corresponds to the desired position.

In Figs. 1 and 2 merely a print support band 14 to be printed is shown. It should be noted the fact that rotary printing machines typically serve to print various bands of print support of this type. If then, when several print support bands 14 are printed in static form, dynamic printing is possible in a desired position, then it continues to depend on both the configuration of the rotary printing machine and the band guidance of the support bands of 14 printing by the rotary printer machine. The band guidance of the print support bands by the rotary printing machine is determined by a so-called imposition and band guidance scheme.

Then, if the guiding of several print support bands by the rotary printing machine is predetermined, the control equipment of the rotary printing machine according to the invention can, taking into account the configuration of the rotary printing machine, as well as having in consideration of the predetermined band guidance, merely check whether printing with the inkjet printing equipment is possible in the desired position on the printed copy 17. Then, on the contrary, if the band guidance of the support bands Printing by the rotary printer machine is not predetermined, the control team can automatically control with which band guidance of the print media bands by the rotary printer machine dynamic printing is possible in the desired position with the printing equipment by ink-jet.

In this case, the control team then automatically proposes the imposition and band guidance scheme, with which dynamic printing in the position defined by the printer is possible, then using that imposition and band guidance scheme to operate The printing machine.

As already mentioned, if the control team verifies that dynamic printing of the print support band is possible in the desired position by means of the inkjet printing equipment, the control equipment enables printing with the printing equipment by inkjet, the control equipment then automatically determining a command signal for the inkjet printing equipment 17.

By means of the command signal it is ensured that the dynamic printing arrangement to be printed with the inkjet printing equipment 17, seen in the transport direction (arrow 16) of the print support band 14, is in position 19 desired on the respective print support band. In this determination of the command signal, at least the transport speed of the print support band 14, the distance of the inkjet printing equipment 17 to the last printing mechanism 13, as well as the vertical distance are taken into account of the inkjet printing equipment 17 to the print side of the print support band 14.

The control equipment of the rotary printing machine according to the invention, therefore, determines whether in principle a dynamic printing, which is preset by a printer, of a printing support band by means of an inkjet printing equipment is really possible. in the desired position. Only then, if it is found that this is the case, is printing with inkjet printing equipment allowed. Otherwise an error message is generated. This control of the control equipment is carried out at least on the basis of the configuration of the rotary printing machine, preferably also on the basis of a predetermined band guidance, respectively without predetermining.

LIST OF REFERENCE CHARACTERS

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Layout Print unit Print unit

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Printing mechanism

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Diverter roller

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Arrow

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17 Inkjet printing equipment

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Printed pages

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Double arrow

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Claims (7)

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one.

Control method for a rotary printing machine, with several printing units (12), particularly offset printing units, for static printing at least one surface of the print support band of at least one print support band (14 ) with a print arrangement that is the same for all printed copies, each printed copy comprising several printed pages (18) which, depending on an imposition and band guide scheme, are printed on the or each print support band surface of the or each print support band (14), and with at least one processing equipment (17), particularly with at least one inkjet printing equipment (17) for dynamically printing at least one band of printing support (14) with a variable printing arrangement for at least some printed copies, and with a control equipment, characterized in that the control equipment, which controls whether at a desired position (19) on a print support band surface of a print support band (14), respectively at a desired position (19) on a printed page (18), processing with a processing equipment, particularly a printing with an inkjet printing equipment (17), taking into account the configuration of the rotary printing machine, then enabling, if the control equipment verifies in that case that the processing with an equipment processing, particularly printing with an inkjet printing device (17), it is possible in the desired position, the control equipment processing with an appropriate processing equipment, particularly dynamic printing with a jet printing equipment of ink (17) appropriate.

2.

Method according to claim 1, characterized in that a printer prefixes manually or a prepress system prefixes the position (19) desired for processing as a relative position with respect to a printed page (18), and because the control equipment determines this is the desired position (19) as an absolute position with respect to a print support web surface of a print support web (14).

3.

Method according to claims 1 or 2, characterized in that then, if the control equipment verifies that processing in the desired position is possible with a processing equipment, the control equipment automatically moves the appropriate processing equipment transversely to the transport direction from the print support band (14) to a position, relative to the print support band, which corresponds to the desired position.

Four.

Method according to one of claims 1 to 3, characterized in that the control equipment controls, taking into account the configuration of the rotary printing machine and taking into account the scheme of imposition and band guidance resulting from the band guidance of the or each print support band (14), if in the desired position (19) processing with processing equipment is possible.

5.

Method according to claim 4, characterized in that then, if the band guidance is not predetermined, the control equipment automatically controls with which band guidance the processing in the position is possible.

(19) desired with a processing equipment, automatically proposing an imposition and band guidance scheme, which is determined in that case, to operate the printing machine.

6.

Method according to one of claims 1 to 5, characterized in that then, if the control equipment verifies that processing in the desired position is possible with a processing equipment, the control equipment automatically determines a control signal for that processing equipment to position the processing, to be performed with that processing equipment, in the direction of transport of the or each print support band in the desired position on the respective print support band.

7.

Method according to one of claims 1 to 6, characterized in that then, if the control equipment verifies that processing in the desired position is not possible, the control equipment automatically generates an error message.

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