DE102015216875A1 - Method for operating a transport device which sequentially feeds a plurality of sheets to a processing station - Google Patents

Abstract

The invention relates to a method for operating a plurality of sheets of a processing station sequentially feeding transport device, are used for processing by the same processing station different bow each extending in the transport direction of this sheet length, wherein the processing station to be fed sequentially fed sheets from the transport device in each case at a distance be transported, wherein the transport device imprints the sheet to be transported in each case a transport speed, which is kept constant between immediately successive sheet distance for sheets of different each extending in the transport direction of this sheet length by a change in the transport device of the relevant sheet aufzuprägenden transport speed , wherein the transport speed of the subsequent sheet in the direction of transport in relation to the Transportgeschwi changed in the immediately preceding arc.

Description

The invention relates to a method for operating a multi-sheet processing station sequentially feeding transport device according to claim 1.

By the DE 10 33 225 A a sheet feeder for printing machines is known in which endless belts over a vacuum space so slide, the space is closed and the vacuum only in openings (suckers) of the tape against the paper stack or single sheet of paper takes effect and thus the sheet is taken from the belts, said the bands are made of wear-resistant steel, wherein next to and behind the Saugerstellen preferably blowing openings (chambers, tubes, slots) are located, which bring the bow for separation and levitation by means of blown air.

By the DE 44 13 089 A1 is a method for the shingled feeding of sheet-shaped substrates to a printing press using a conveyor known, in which counter to the conveying direction of the fed via the conveyor table printing material under the scale flow continuously compressed air flows.

By the DE 40 12 948 A1 is a conveyor table for guiding printed sheets to a printing machine with at least one suction chamber and attached to this Axiallüfter and this about suction openings in the conveyor table circulating perforated Saugbändern known, being provided parallel to the suction belts openings in the conveyor table, which are separated from the suction chamber with the environment are connected.

By the DE 20 2004 006 615 U1 a device on a conveyor table, preferably on a Saugbändertisch, known for transporting sheet material in a subjacent sheet stream from a sheet feeder to a sheet-processing machine, in particular a sheet-fed rotary printing press, with one or more conveyor belts, for example, with suction air acted upon suction belts, the drivable and endlessly guided around the conveyor table, with a blowing device which blows outside the guide region of the conveyor belts in the region of laterally and parallel to the conveyor belts arranged guide areas of the conveyor table air under the sheet stream, wherein at least in the guide areas on the outside of the conveyor belts a plurality is provided by substantially over the entire surface of the guide areas distributed individual ventilation openings and wherein a Blasluftzuführung is provided such that they Weni for ventilation openings Partly coupled so that the guide areas are acted upon substantially in partial surfaces or over the entire surface with blown air, wherein the ventilation openings are preferably designed in the region of the downstream end of the conveyor table as directed from the center of the conveyor table in each case to the lateral edges nozzles.

By the DE 101 57 118 A1 a device for braking of printed sheets in the boom of a sheet-fed printing machine with a suction air working sheet brake is known, wherein the sheet brake is connected via a line system and at least one valve with a vacuum generator, so that at the outer radius of the sheet brake in the suction region, a negative pressure can be applied, at least a sensor for determining the position of the printed sheet and a downstream control device are arranged and the valve can be controlled by the control device in dependence on the signals of the at least one sensor.

• a) eine Druckwerkstransportvorrichtung mit mindestens einem umlaufenden, über Rollen geführten Druckwerkstransportband mit Öffnungen und eine unter dem Druckwerkstransportband angeordnete Saugkammervorrichtung, wobei das Druckwerkstransportband bzw. die Druckwerkstransportbänder eine eigenständige Antriebseinrichtung aufweist bzw. aufweisen, die dem Transportband bzw. Transportbändern eine Geschwindigkeit aufprägt bzw. aufprägen, b) eine über dem in etwa horizontal geführtem oberen Drum des Druckwerkstransportband angeordnete Tintenstrahldruckvorrichtung, c) eine dem Druckwerkstransportvorrichtung in Transportrichtung der Druckbogen/-substrate vorgeordnete Transportvorrichtung mit mindestens einem umlaufenden Band, wobei das Transportband bzw. die Transportbänder eine eigenständige Antriebseinrichtung aufweist bzw. aufweisen, die dem Transportband bzw. den Transportbändern eine Geschwindigkeit aufprägt bzw. aufprägen, wobei das Verhältnis der Geschwindigkeit des dem Druckwerktransportbands bzw. der Druckwerkstransportbänder der Druckwerkstransportvorrichtung zu der Geschwindigkeit des Transportbandes bzw. der Transportbänder des der Druckwerkstransportvorrichtung vorgeordneten Transporteinrichtung so gewählt wird, dass die Druckbogen oder -substrate für alle für den Tintenstrahldrucker vorgesehenen Bogenformate Stoß an Stoß oder mit einem geringen Abstand von bis zu 10 mm auf dem Druckwerkstransportband bzw. Druckwerkstransportbändern zu liegen kommen.

By the DE 10 2009 048 928 A1 an ink jet printer for printing on sheet-shaped substrates is known, the printer comprising the following components:

• a) a printing unit transport device with at least one circulating, guided over rollers printing press conveyor belt with openings and arranged under the printing unit conveyor belt Saugkammervorrichtung, wherein the printing unit conveyor belt or the printing unit conveyor belts has or have an independent drive means, which imprints or impose a speed on the conveyor belt or conveyor belts c) an upstream of the printing unit transport device in the transport direction of the printing sheet / substrates transport device with at least one circulating belt, wherein the conveyor belt or the conveyor belts has a separate drive device or have a speed imparting or imparting to the conveyor belt or the conveyor belts, wherein the ratio of the speed of the Dru ckwerktransportbands or the printing unit conveyor belts of the printing unit transport device to the speed of the conveyor belt or the conveyor belts of the printing unit transport device upstream transport device is selected so that the sheets or substrates for all provided for the ink jet printer sheet formats shock to jerk or a small distance of up to 10 mm come to rest on the printing press conveyor belt or printing press conveyor belts.

By the DE 101 41 589 B4 a method for operating a sheet-processing machine is known in which the sheets are displaced in the transport direction and treated in several processing stations, wherein the displacement speed of the sheet is independently adjustable, the speed of the respective sheet adapted to the processing step to be performed in the respective processing station , and wherein the speed of the sheet is different in at least two of the processing stations. The processing power of the individual processing stations during a certain period of time may be the same size or the processing power of a first processing station is greater or smaller than the processing power of an upstream or downstream second processing station during a certain period.

By the DE 10 2004 014 521 B3 is a device for transporting sheets in printing presses from the printing units for sheet stacking known, consisting of at least one on both sides guided on chain tracks gripper carriage with gripper systems for detecting and guiding the sheet, said gripper carriage on the sheet stacking stack describes a linear guideway and after filing of the sheet the sheet stack is guided within a deflection on a radius of curvature and continuing consisting of leading edge gripper for detecting the leading edges of the sheet and depositing the sheet on the sheet stacking stack, wherein a gripper carriage support is provided exclusively on the linear guide path over the sheet stacking stack and in the deflection.

By the US 2,198,385 A a gripper carriage is known which is supported in the transfer area from the last sheet guiding cylinder to the gripper carriage centered on a cam on a cam, whereby a passers-fair transfer of the sheet is to be achieved.

The invention has for its object to provide a method for operating a multiple sheets of a processing station sequentially feeding transport device, which supplies the substrates of a processing station evenly spaced.

The object is achieved by the features of claim 1. The dependent claims show advantageous embodiments and / or developments of the solution found.

The advantages achieved by the invention are in particular that the substrates are printed on both sides. Further advantages can be seen from the following explanations.

Moreover, the solution described can be used in a hybrid, arcuate substrate processing machine assembly, preferably in a hybrid printing machine, which achieves the high productivity of a conventional, e.g. B. in an offset printing process or in a flexographic printing process or in a screen printing process printing device or a coating device, in particular a coating unit variable in combination with at least one flexible each variable printing images printing, z. B. uses as an inkjet printer formed non-impact printing device, both the conventional printing device or the coating device and the non-impact printing device are used in-line production inline each with the optimal working speed for them. Such a hybrid machine arrangement is in particular for the production of packaging means, for. B. from sheet for the production of cartons very beneficial because each of the strengths of each of the printing devices are used, resulting in a flexible and economical production of packaging materials. Thus, in particular bending-resistant arc-shaped substrates in a non-impact printing device can advantageously be printed in a flat state and in a horizontal position. The length of a linear transport device can be with less effort to a different number of printing units or printing stations (color separations) and (intermediate) dryer configurations z. B. for water-based or UV-curing printing inks or inks, as would be the case with a rotary transport device via cylinder. Also, with a linear transport means using arcuate substrates of variable format lengths, a constant arc gap between immediately successively spaced transported arcuate substrates can be realized more easily. On the other hand, a transport of arcuate substrates by means of rotational bodies, in particular cylinders and gripper bars or gripper carriages each with a transfer of the arcuate substrates each at the gripper close to a next processing station, as is known from sheet-fed offset printing machines, ensures the highest possible register accuracy.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1 a block diagram for the representation of different production lines;

2 a first machine arrangement with a plurality of different processing stations;

3 to 8th Further machine arrangements each with several different processing stations;

9 the machine arrangement of 8th each in a plan view and in a side view;

10 a multi-part transport device;

11 an enlarged view of a first section of the 10 ;

12 an enlarged view of a second section of the 10 ;

13 a schematic representation of a transport device for the sequential transport of individual arcuate substrates;

14 a plan view of a single blow-suction nozzle;

15 a plan view of a transport device according to the 11 or 13 ;

16 a side view to that in the 15 illustrated transport device;

17 a detail of the representation of a chain conveyor;

18 a plan view of the in the 15 arrangement shown;

19 another perspective view of the in the 15 and 16 shown chain conveyor;

20 a further embodiment of the transport device based on an enlarged detail of the 11 ;

21 a plan view of the transport device of 20 ;

22 an arcuate substrate to be aligned in the diagonal register;

23 a side view of a transport device with a rocker lever having mechanical coupling element;

24 a top view of the in the 23 illustrated transport device;

25 a side view of a transport device with a gear coupling having mechanical coupling element;

26 a top view of the in the 25 illustrated transport device;

27 a machine assembly for two-sided sequential processing of a plurality of arcuate substrates;

28 a further machine arrangement for two-sided sequential processing of a plurality of arcuate substrates.

1 Illustrates in a block diagram various production lines, each with a machine arrangement with several in particular different processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 for processing at least one sheet-shaped substrate, in particular a printing material, preferably a particular rectangular printed sheet, short of a bow can be realized, this at least one substrate depending on the material, material thickness and / or grammage is rigid or limp formed. In this case, preferably, each of these processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 each as a z. B. functionally independent module is formed, which is to be understood by a module usually an independently manufactured or at least one mounted for themselves machine unit or functional assembly. Each of the processing stations arranged in the respective machine arrangement 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 is therefore preferably made independently and is in a preferred embodiment, for. B. individually in its respective function testable. The relevant machine arrangement, each by a selection and compilation of at least three different each arc-processing, cooperating in a particular production processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 is formed, each embodies a specific production line. Each of the illustrated production lines, each by a specific machine arrangement with multiple processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 is embodied, in each case in particular for the production of a packaging material formed from the substrate, preferably formed from the printed sheet. The packaging materials to be produced are z. B. each a carton, each made of printed sheet. The various production lines are therefore designed in particular for the production of different packaging means. In this case, the processing of the printing material required during a specific production takes place in each case inline, ie the processing stations involved in the specific production 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 become during the passage of the printing material by the selected for the respective production, the respective processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 having brought succession machine assembly in an orderly sequence sequentially and matched to each other, without an intermediate storage for the substrate, ie the processed sheet is provided during the production carried out with the respective machine arrangement production.

Allen in the 1 represented production lines is common that they each with a processing station 06 interact with at least one non-impact printing device 06 , preferably several, z. B. four, five, six or seven in each case individually controlled non-impact printing devices 06 having. A non-impact printing device 06 uses a printing process without a fixed printing form and can in principle print to print the substrate, eg. B. each of these printing device 06 just fed sheet fed with a different from the previous print image. The respective non-impact printing device 06 is in each case realized in particular by at least one inkjet printer or by at least one laser printer. Ink jet printers are dot matrix printers which produce a printed image by the selective firing or deflection of small droplets of ink, the ink jet printer operating either as a continuous ink jet (CIJ) or as a single drop drop dispenser (Drop On Demand) DOD) is formed. Laser printers generate the respective print image in an electrophotography process. The non-impact printing device 06 is z. B. also referred to as a digital printing machine.

In the following, it is assumed by way of example that in the respective machine arrangement with several processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 as a substrate in each case a sequence of particular rigid sheet z. B. from a paper, from a single-ply or multi-ply cardboard or cardboard in particular to a packaging material is processed. The substrates paper, cardboard and paperboard differ in their respective basis weight, ie the weight in grams for one square meter of this printing substrate. In general, the abovementioned printing material with a weight per unit area of between 7 g / m ² and 150 g / m ² as paper, between 150 g / m ² and 600 g / m ² as cardboard and with more than 600 g / m ² as cardboard. For the production of cartons in particular cartons are used which have good printability and for subsequent finishing or processing such. B. are suitable for painting and punching. These cartons are of their pulp z. B. wood-free, slightly woody, woody or recycled paper content. In their construction, multi-layered cartons have a top layer, an inlay and a backing on the back. From their surface texture are cartons z. B. uncoated, pigmented, painted or cast-coated. A format of the bow is z. B. in the range between 340 mm × 480 mm and 740 mm × 1060 mm, wherein in the format information usually the first number indicates a length in the transport direction T of the sheet and the second number indicates an orthogonal to the transport direction T width of the sheet.

In the block diagram of 1 each runs with several of the processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 representable production line essentially from right to left, with each of the two processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 connecting direction arrows in each case one of the substrate to be traversed by transport path and an associated transport direction T suggests to order from a processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to the next processing station selected in the machine assembly dedicated to the particular production 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to get. Every production begins with in the processing station 01 provided sheet, with the processing station 01 as an investor 01 , z. B. as a sheet feeder 01 or as a magazine feeder 01 is trained. A sheet feeder 01 usually takes a z. B. stacked on a pallet stack of sheets, whereas a magazine feeder 01 has several subjects, in each of which bow, in particular stack of z. B. different types of sheets or sheets of different formats are inserted or at least inserted. The investor 01 isolated z. B. by means of a suction head 41 the stacked sheets and these in a sequence of mutually separated sheets or in a scale flow of the next production station in the particular production 02 ; 03 ; 04 ; 06 to. The next workstation 02 ; 03 ; 04 is z. B. as a primer applicator 02 or as a cold foil applicator 03 or as an offset printing device 04 or as a flexo printing device 04 educated. The next workstation 06 can also directly z. B. the at least one non-impact printing device 06 be. The offset printing device 04 is preferably formed as a sheet-fed offset printing machine, in particular as a sheet-fed press with multiple printing units 86 in series construction. The offset printing device 04 provides the sheets with at least one static printed image, whereas the non-impact printing device 06 the sheet is provided with at least one changing or at least variable printed image.

If the investor 01 next processing station 03 the cold foil applicator 03 is, the sheet is then usually from there to as an offset printing device 04 trained workstation 04 transported. In the cold foil applicator 03 is a transferred from a carrier foil metallized coating layer transferred to the substrate. By overprinting this lacquer layer z. B. with an offset printing device 04 Different metallic effects can be achieved. The cold foil applicator 03 is advantageously z. B. in the offset printing device 04 integrally formed by two additional printing units 87 ; 88 in the offset printing device 04 are provided. In the transport direction T of the printing first printing unit 87 By means of a standard printing form, a special adhesive is applied to the printing substrate, ie the respective sheet. An in the transport direction T of the printing second printing unit 88 is equipped with a film transfer device comprising the lacquer layer to be transferred. The film carrying the lacquer layer is guided by a unwinding station into a printing gap between a transfer cylinder and a pressure cylinder cooperating with this transfer cylinder and brought into contact with the printing material. In the lacquer layer coloring are an aluminum layer and a protective lacquer layer whose color affects the color impression. By adhesion of an adhesive layer with the printed adhesive layer, the transfer layers remain adhered to the substrate. The carrier film is then wound up again. After the cold foil transfer is inline, especially in the offset printing device 04 Overprinting with conventional inks as well as UV and hybrid inks possible to produce different metallic shades.

A z. B. particularly absorbent and / or for printing with a non-impact printing device 06 The substrate to be processed is supplied by the investor 01 a z. B. as a primer applicator 02 trained next processing station 02 fed to at least one surface of this substrate before printing or painting with a z. B. to coat water-based primer, in particular to seal. The primer is a primer or initial coating of the printing material, in particular to improve adhesion of a subsequently applied to the substrate ink or only to allow. The primer applicator 02 is z. B. in conjunction with a printing unit 86 a rotary printing machine is formed and has z. B. one with a plant pressure cylinder 119 cooperating printing cylinder 82 with one to this printing cylinder 82 employed or at least adjustable applicator roll 83 preferably in the form of an anilox roller 83 on and at least one in the axial direction of the applicator roll 83 extending squeegee 84 , in particular a chambered doctor blade system 84 ( 3 to 5 . 8th . 27 . 28 ). The primer is applied by means of the primer applicator 02 either over the entire surface or only at certain, ie predetermined locations, ie partially applied to the substrate. The in the primer applicator 02 processed substrate, z. B. bow, is the next processing station z. B. an offset printing device 04 and / or z. B. a non-impact printing device 06 fed.

The one of z. B. as a flexographic printing device 04 trained workstation 04 executed flexographic printing is a direct high-pressure process in which the raised areas of the printing plate are image-bearing, which is often used for printing on packaging paper, cardboard or cardboard, metallized film or a plastic such. As PE, PET, PVC, PS, PP, PC is used. Flexographic printing uses low viscosity inks and flexible printing plates made of photopolymer or rubber. Generally includes a flexo printing device 04 a) an anilox roller over which the printing plate is inked, b) a printing cylinder, also called a plate cylinder, on which the printing plate is mounted, and c) an impression cylinder, which guides the printing material.

The as flexo printing device 04 or as an offset printing device 04 trained, the sheet each with at least one static printed image printing processing station 04 preferably has several, z. B. at least four printing units 86 on, with each printing unit 86 preferably prints another ink, so that the substrate when passing through the flexographic printing device 04 or the offset printing device 04 each multicolored, z. B. is printed in a four-color print. In an alternative embodiment, the sheet is each printing with at least one static print image processing station 04 as a screen-printing printing device 04 educated.

After processing of the printing material in the at least one non-impact printing device 06 This substrate is z. B. as an intermediate dryer 07 trained workstation 07 fed, this intermediate dryer 07 as a respective substrate z. B. is formed by an irradiation with infrared or ultraviolet radiation drying, the type of radiation is particularly dependent on whether the ink applied to the substrate or ink is water-based or UV-curing. After intermediate drying, the substrate is z. B. as a painting 08 trained workstation 08 fed. The painting facility 08 carries on the substrate z. B. a dispersion varnish, wherein dispersion varnishes essentially of water and binders (resins) surfactants stabilize these dispersions. A coating varnish applying a dispersion varnish to the printing substrate 08 consists of either an anilox roll, a chamber doctor blade and an applicator roll (similar to a flexographic printing unit) or a dipping and application roller. By means of a printing plate preferably on Fotopolymerisationsbasis z. B. applied surface and / or partial coatings. Also suitable are special rubber varnish plates for full-surface varnishing. In the transport path of the printing material is after the painting 08 z. B. as a dryer 09 trained processing station 09 arranged, this dryer 09 as a printing substrate in question by irradiation with infrared or hot air drying is formed. If the relevant machine arrangement along the transport path of the printing material several dryers 07 ; 09 has, is the dryer by the reference numeral 09 preferably in the transport direction T of the printing last these multiple dryer 07 ; 09 where the intermediate dryer (s) 07 and the (final) dryer 09 structurally the same or may be designed differently. If the dryer 09 a substrate which is drying by means of ultraviolet radiation, ie a printing material on which a UV-curable printing ink or ink or a UV-curing lacquer, e.g. B. a gloss varnish is applied, this dryer 09 equipped with an ultraviolet radiation generating radiation source. With dispersion varnishes, more intense gloss and matt effects can be achieved compared to the classic oil-based varnish. Special optical effects can be achieved by effect pigments in the paint. The primer applicator 02 , the cold foil applicator 03 and the paint shop 08 can be termed coating device 02 ; 03 ; 08 be summarized.

After drying, the substrate is z. B. a processing station 11 supplied, which performs on the substrate mechanical processing, z. B. by punching, grooving and / or separating parts, in particular breaking benefit from their respective composite in preferably printed sheet. Each of the aforementioned further processing is in each case in or from a processing plant 46 executed. The mechanical further processing is preferably carried out in cooperation with a cylinder transporting the respective sheet. Afterwards or directly from the dryer 09 the substrate reaches a delivery 12 which in each of the in the 1 represented, each by a specific arrangement of processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 embodied production lines each the last processing station 12 forms. In the delivery 12 are the previously processed sheet z. B. preferably stacked on a pallet.

As in the 2 to 9 is shown, the previously mentioned order of arranged in the respective machine arrangement processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 modifiable only by way of example and depending on the particular printed product to be produced.

• 1. Bogenanleger 01; Primerauftrageinrichtung 02; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit IR-Strahlungsquelle für Dispersionslack; Lackiereinrichtung 08; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; Auslage 12
• 2. Bogenanleger 01; Primerauftrageinrichtung 02; Non-Impact-Druckeinrichtung 06; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; Auslage 12
• 3. Bogenanleger 01; Primerauftrageinrichtung 02; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit IR-Strahlungsquelle; Lackiereinrichtung 08 für Dispersionslack und UV-härtendem Lack; Trockner 09 mit IR-Strahlungsquelle oder Heißluft und mit UV-Strahlungsquelle; Auslage 12
• 4. Bogenanleger 01; Kaltfolienauftrageinrichtung 03; Offset-Druckeinrichtung 04; Non-Impact-Druckeinrichtung 06; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; Auslage 12
• 5. Bogenanleger 01; Primerauftrageinrichtung 02; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit IR-Strahlungsquelle für Dispersionslack; Lackiereinrichtung 08; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; mechanische Weiterverarbeitungseinrichtung 11; Auslage 12
• 6. Bogenanleger 01; Offset-Druckeinrichtung 04; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit IR-Strahlungsquelle; mechanische Weiterverarbeitungseinrichtung 11; Auslage 12
• 7. Bogenanleger 01; Non-Impact-Druckeinrichtung 06; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; Auslage 12
• 8. Bogenanleger 01; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit UV-Strahlungsquelle; Trockner 09 mit UV-Strahlungsquelle; Auslage 12
• 9. Bogenanleger 01; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit UV-Strahlungsquelle; Trockner 09 mit UV-Strahlungsquelle; mechanische Weiterverarbeitungseinrichtung 11; Auslage 12
• 10. Bogenanleger 01; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit IR-Strahlungsquelle; Offset-Druckeinrichtung 04; Lackiereinrichtung 08; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; Auslage 12
• 11. Magazinanleger 01; Primerauftrageinrichtung 02; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit IR-Strahlungsquelle; Lackiereinrichtung 08; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; Auslage 12
• 12. Magazinanleger 01; Primerauftrageinrichtung 02; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit IR-Strahlungsquelle; Trockner 09 mit IR-Strahlungsquelle oder Heißluft; mechanische Weiterverarbeitungseinrichtung 11; Auslage 12
• 13. Magazinanleger 01; Non-Impact-Druckeinrichtung 06; Zwischentrockner 07 mit UV-Strahlungsquelle; Lackiereinrichtung 08; Trockner 09 mit UV-Strahlungsquelle; Auslage 12

In the 1 exemplified, especially for the production of packaging means used production lines each have a machine assembly with a selection of the amount of the aforementioned processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 on. For example, the following production lines are formed or at least formable:

• 1. Sheet feeder 01 ; Primer applicator 02 ; Non-impact printing device 06 ; intermediate dryer 07 with IR radiation source for dispersion varnish; painting equipment 08 ; dryer 09 with IR radiation source or hot air; display 12
• 2. Sheet feeder 01 ; Primer applicator 02 ; Non-impact printing device 06 ; dryer 09 with IR radiation source or hot air; display 12
• 3. Sheet feeder 01 ; Primer applicator 02 ; Non-impact printing device 06 ; intermediate dryer 07 with IR radiation source; painting equipment 08 for dispersion varnish and UV-curing varnish; dryer 09 with IR radiation source or hot air and with UV radiation source; display 12
• 4. Sheet feeder 01 ; Cold foil application device 03 ; Offset printing device 04 ; Non-impact printing device 06 ; dryer 09 with IR radiation source or hot air; display 12
• 5. Sheet feeder 01 ; Primer applicator 02 ; Non-impact printing device 06 ; intermediate dryer 07 with IR radiation source for dispersion varnish; painting equipment 08 ; dryer 09 with IR radiation source or hot air; mechanical processing device 11 ; display 12
• 6. Sheet feeder 01 ; Offset printing device 04 ; Non-impact printing device 06 ; intermediate dryer 07 with IR radiation source; mechanical processing device 11 ; display 12
• 7. Sheet feeder 01 ; Non-impact printing device 06 ; dryer 09 with IR radiation source or hot air; display 12
• 8. Sheet feeder 01 ; Non-impact printing device 06 ; intermediate dryer 07 with UV radiation source; dryer 09 with UV radiation source; display 12
• 9. Sheet feeder 01 ; Non-impact printing device 06 ; intermediate dryer 07 with UV radiation source; dryer 09 with UV radiation source; mechanical processing device 11 ; display 12
• 10. Sheet feeder 01 ; Non-impact printing device 06 ; intermediate dryer 07 with IR Radiation source; Offset printing device 04 ; painting equipment 08 ; dryer 09 with IR radiation source or hot air; display 12
• 11. Magazine feeder 01 ; Primer applicator 02 ; Non-impact printing device 06 ; intermediate dryer 07 with IR radiation source; painting equipment 08 ; dryer 09 with IR radiation source or hot air; display 12
• 12. Magazine feeder 01 ; Primer applicator 02 ; Non-impact printing device 06 ; intermediate dryer 07 with IR radiation source; dryer 09 with IR radiation source or hot air; mechanical processing device 11 ; display 12
• 13. Magazine feeder 01 ; Non-impact printing device 06 ; intermediate dryer 07 with UV radiation source; painting equipment 08 ; dryer 09 with UV radiation source; display 12

In this case, at least one of the at least one non-impact printing device 06 cooperating processing stations 01 ; 02 ; 03 ; 04 ; 07 ; 08 ; 09 ; 11 ; 12 to participate in the processing of the sheet respectively depending on whether the particular with the non-impact printing device 06 formed on the respective sheet ink is formed as a water-based ink or as an ultraviolet-curing ink or ink. Thus, the respective machine arrangement is designed to print the sheets in each case with a water-based printing ink or with a curing by ultraviolet radiation ink.

Further, i. V. m. the 27 and 28 explained machine arrangements with a selection from the amount of the aforementioned processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 see z. B. production lines, which essentially have the following processing stations: sheet feeder 01 ; first primer applicator 02 ; first dryer 121 ; first non-impact printing device 06 ; second dryer 122 ; second primer applicator 126 ; third dryer 123 ; second non-impact printing device 127 ; fourth dryer 124 ; display 12

An advantageous machine arrangement mentioned here by way of example has several processing stations for processing sheets, wherein in the transport direction T the sheet has several processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 successively arranged for inline processing of these sheets, wherein at least one of these processing stations 06 as a non-impact printing device 06 is formed, wherein in the transport direction T of the sheet of non-impact printing device 06 upstream first processing station 01 as a sheet feeder 01 or as a magazine feeder 01 is formed, one between the first processing station 01 and the non-impact printing device 06 arranged processing station 08 as a first coating device applying in each case a paint on the sheet 08 is formed, wherein between the first coating device 08 and the non-impact printing device 06 a first dryer 07 is arranged, wherein a first conveyor belt 17 the bows from the first dryer 07 to the non-impact printing device 06 is arranged transporting, wherein in the transport direction T of the sheet after the non-impact printing device 06 a second dryer 07 is arranged, wherein means for transferring the non-impact printing device 06 upcoming sheet to a second coating device 08 is provided, wherein the second coating device 08 a third dryer 09 is downstream, wherein in the transport direction T, the sheet after the third dryer 09 a display 12 is arranged for the bow. It can be between the third dryer 09 and the display 12 additionally a mechanical further processing device 11 be arranged. Further, in the transport direction T, the sheet is in front of the non-impact printing device 06 z. B. a cold foil applying coating device 03 arranged. The non-impact printing device 06 For example, along the transport path, the sheet preferably has a plurality of individually controlled ink jet printers. Within the scope of the non-impact printing device 06 the sheets are preferably each on a transport device 22 horizontally plan guided lying, with the transport device 22 at least within the scope of the non-impact printing device 06 for the sheets each having a linear transport path or a curved transport path, wherein the curved transport path is formed by a lying in a vertical plane concave or convex arc line with a radius in a range between 1 m and 10 m. In the transport direction T, the sheet is in front of the non-impact printing device 06 z. B. arranged a transfer device, wherein the transfer device, the sheet in each case at least in its axial register and / or circumferential register in register relative to the printing position of the non-impact printing device 06 aligns, wherein the transfer device z. B. a respective arc holding suction air suction drum 32 having. This machine arrangement is designed to print the sheets, in particular in each case with a water-based printing ink or with an ultraviolet curing ink. This machine arrangement is in particular designed to produce different packaging means. The device for transferring the non-impact printing device 06 upcoming bow to the second coating device 08 is z. B. as a swing gripper 19 and one with the swinging grapple 19 cooperating transfer drum 31 educated.

2 shows an example of a machine arrangement with multiple processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 according to the above-mentioned production line No. 6. Sheets are in a sheet feeder 01 z. B. with a suction head 41 picked up individually from a stack and successively in a stroke of z. B. 10,000 pieces per hour to an offset printing device 04 with z. B. four arranged in a row printing units 86 to hand over. For a transfer of the sheet from one to the next arranged in a row printing units 86 is in each case a rotational body, in particular a cylinder, preferably a transfer drum 43 provided, in each case between two directly adjacent printing units 86 is arranged. The offset printing device 04 takes over her from the sheet feeder 01 fed sheet z. B. with a first swing gripper 13 and directs the sheets to a first transfer drum 14 the offset printing device 04 wherein the sheets are then in the offset printing device 04 in a gripper closure from one to the next printing unit 86 be guided. In the offset printing device 04 the sheets are printed on at least one side. In the presence of a turning device, the sheets in the offset printing device 04 also be printed on both sides, ie in perfecting. After passing through the here z. B. as an offset printing device 04 trained workstation 04 is the question preferably four-color printed sheet by means of a first gripper system 16 , in particular a first chain conveyor 16 and at least one first conveyor belt 17 to a non-impact printing device 06 passed, the first gripper system 16 and the first conveyor belt 17 when transferring the sheets to the non-impact printing device 06 cooperate, in such a way that the first gripper system 16 the sheets each to the first conveyor belt 17 gives, passing the sheet to the non-impact printing device 06 from the first conveyor belt 17 out. The non-impact printing device 06 preferably has several, z. B. five linearly arranged in a row in particular each individually controlled inkjet printer on. This is followed by drying in the offset printing device 04 with at least one static printed image and in the non-impact printing device 06 with at least one changing or at least variable printed image provided sheet in a dryer 07 or intermediate dryer 07 preferably with an IR radiation source. Again, the sheets are in a mechanical finishing device 11 z. B. further processed by punching and / or grooving and / or breaking benefit from the respective arc. Ultimately, the bow and / or in each case from the bow dissolved benefits in a display 12 collected, in particular stacked. In the sphere of action of the first gripper system 16 or the first chain conveyor 16 can each along the intended transport path for the sheet a display 12 , Be provided in particular a multi-stack display. Likewise, in the transport direction T of the sheet z. B. after the mechanical processing device 11 arranged a multi-stack display.

The investor 01 , especially in the sheet feeder 01 sheets picked up from a stack are spaced apart one another by the offset printing device 04 transported at a first transport speed. The offset printing device 04 to the non-impact printing device 06 Passed sheets are used in this non-impact printing device 06 transported at a second transport speed, wherein in the non-impact printing device 06 Applicable second transport speed is usually lower than that in the offset printing device 04 valid first transport speed. For adaptation in the offset printing device 04 applicable first transport speed to the usually lower in the non-impact printing device 06 applicable second transport speed is z. B. the gap between directly successive arc gap, ie the distance z. B. due to a gripper channel width for in the gripper closure by the offset printing device 04 transported sheet results in the transfer of these sheets from the offset printing device 04 to the non-impact printing device 06 preferably reduced, wherein such a reduction in distance based on their original distance z. B. is in the range between 1% and 98%. Thus, directly consecutive sheets are also in the non-impact printing device 06 transported spaced apart, but with a generally smaller arc gap or at a smaller distance than in the offset printing device 04 and consequently also with a lower second transport speed. This second transport speed is preferably maintained when in the non-impact printing device 06 printed sheets first to an intermediate dryer 07 or dryer 09 and from there z. B. by means of a feed table 18 to a mechanical processing device 11 continue to the delivery 12 be transported. However, the sheets can be brought from their second transport speed to a third transport speed, if z. B. the mechanical processing device 11 requires, wherein the third transport speed is usually higher than the second transport speed and z. B. again in particular in the offset printing device 04 corresponding first transport speed corresponds. In the mechanical finishing device 11 is z. B. a second swing gripper 19 provided, which from the intermediate dryer 07 or dryer 09 coming bow from the feed table 18 picks up and z. B. to one in the field of mechanical processing device 11 arranged second transfer drum 31 passes, after which the bow z. B. by means of a gripper closure by the area of the mechanical processing device 11 be transported. Also in the field of mechanical, in series z. B. several processing plants 46 having further processing device 11 is for handing over the sheets from one to the next of the arranged in a row processing plants 46 in each case a rotational body, in particular a cylinder, preferably a transfer drum 44 provided, in each case between two adjacent processing plants 46 is arranged. One of the processing plants 46 is z. B. as a stamping, another processing plant 46 z. B. formed as a Rillwerk. The relevant processing plant 46 the mechanical further processing of the sheet is preferably designed to perform in cooperation with a cylinder transporting the respective sheet. After their mechanical processing, the sheets and / or cut out of them benefits z. B. by means of a second chain conveyor 21 to the delivery 12 transported and collected there, preferably stacked.

The sheets are from the output of the offset printing device 04 at least until the exit of the intermediate dryer 07 or dryer 09 , preferably to the beginning of the mechanical finishing device 11 in each case by means of a multi-part, ie from several in the transport direction T of the sheet successively arranged assemblies, in particular transport units existing transport device 22 transported, the transport device 22 the sheets with their respective direction in the transport direction T length at least in the area of the between the offset printing device 04 and the intermediate dryer 07 or dryer 09 arranged non-impact printing device 06 transported along a linear transport path preferably horizontal plan lying. The linear transport path and the horizontal plane lying transport are preferably also during transport of the sheet by the non-impact printing device 06 downstream intermediate dryer 07 or dryer 09 continued. If necessary can also be between the offset printing device 04 and the non-impact printing device 06 an intermediate dryer 07 or a dryer 09 be arranged.

In the 3 to 8th are further machine arrangements each with multiple processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 illustrated by way of example and schematically, wherein the respective reference numerals the previously explained processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 and other of their respective aggregates.

In the 3 is a machine assembly with the following in the transport direction T of the printing material successively arranged processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 shown: sheet feeder 01 ; Primer applicator 02 or painting device 08 ; intermediate dryer 07 ; Non-impact printing device 06 ; intermediate dryer 07 ; painting equipment 08 ; dryer 09 ; display 12 ,

In the 4 is a machine assembly with the following in the transport direction T of the printing material successively arranged processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 shown: sheet feeder 01 ; Primer applicator 02 ; intermediate dryer 07 ; Non-impact printing device 06 ; dryer 09 ; display 12 ,

In the 5 is a machine assembly with the following in the transport direction T of the printing material successively arranged processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 shown: sheet feeder 01 ; Primer applicator 02 ; intermediate dryer 07 ; Non-impact printing device 06 ; intermediate dryer 07 ; painting equipment 08 ; intermediate dryer 07 ; painting equipment 08 ; dryer 09 ; display 12 ,

In the 6 is a machine assembly with the following in the transport direction T of the printing material successively arranged processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 shown: sheet feeder 01 ; a first offset printing device 04 ; Cold foil application device 03 ; four other offset printing devices 04 in series construction; intermediate dryer 07 ; Non-impact printing device 06 ; intermediate dryer 07 ; Non-impact printing device 06 ; dryer 09 ; display 12 ,

In the 7 is a machine assembly shown in an offset due to their length with the following in the transport direction T of the printing material successively arranged processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 shown: sheet feeder 01 ; a first offset printing device 04 ; Cold foil application device 03 ; four other offset printing devices 04 in series construction; intermediate dryer 07 ; Non-impact printing device 06 ; intermediate dryer 07 ; painting equipment 08 ; dryer 09 ; two mechanical finishing devices 11 in series construction; display 12 ,

In the 8th is a machine assembly with the following in the transport direction T of the printing material successively arranged processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 shown: Magazine feeder 01 ; Primer applicator 02 ; intermediate dryer 07 ; Non-impact printing device 06 ; intermediate dryer 07 ; painting equipment 08 ; dryer 09 ; display 12 , The 9 shows exactly this Machine arrangement in each case in a plan view and in a side view.

10 shows in more detail the aforementioned multi-part transport device 22 preferred for use in a machine arrangement with multiple processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 is intended for processing sheets. At the exit of z. B. as an offset printing device 04 trained workstation 04 is a gripper system 16 , in particular a first chain conveyor having at least one circulating chain 16 is provided, which along its at least one circumferential chain preferably equidistantly spaced a plurality of gripper bars or preferably a plurality of gripper carriages 23 each of the sheets to be transported preferably at its front in the transport direction T edge, ie at its front edge, of one of the gripper carriage 23 held and transported along the predetermined by the chain path transport path. The gripper carriage 23 are for holding a sheet each with controlled or at least controllable holding means 79 ( 15 ), in particular with grippers z. B. in each case in the form of a controllable with respect to the clamping exerted by her clamping device. The distance between in the transport direction T of the arc successive gripper carriage 23 is z. B. in the range between 700 mm and 1,000 mm. The at least one chain of the first chain conveyor 16 runs in each case at one at the output of the offset printing device 04 arranged sprocket 24 in particular semicircular. An area where the first chain conveyor 16 Bow of a z. B. as an offset printing device 04 trained workstation 04 takes over, forms a transfer area of this first chain conveyor 16 whereas an area where the first chain conveyor 16 Bow z. B. to another transport device, in particular for transport to a non-impact printing device 06 trained processing station 06 gives off, a transfer area of this first chain conveyor 16 forms. One in the transfer area of the first chain conveyor 16 arranged first sprocket 81 is preferably formed as a at least one chain in motion staggering drive wheel, whereas at the output of the offset printing device 04 in particular in the transfer area of the first chain conveyor 16 arranged second sprocket 24 is preferably designed as a deflecting the deflecting at least one chain. In an approximately over an extended length of a sheet extending portion below the at least one at the output of the offset printing device 04 arranged sprocket 24 , in particular below that in the transfer area of the first chain conveyor 16 arranged second sprocket 24 , is at least one suction chamber 26 for holding one with one of the gripper carriages 23 transported, ie arranged bow arranged. Preferably, in the transport direction T, the sheet is a plurality of individually controlled or at least controllable suction chambers 26 arranged. As indicated by the reference to the aforementioned other transport device is in this area below the at least one at the output of the offset printing device 04 arranged sprocket 24 z. B. also at least one in the transport direction T of the first arc circulating conveyor belt 17 for picking up and transporting one from the first chain conveyor 16 taken off bow, wherein the first of this conveyor belt 17 taken over sheet each further preferably in the direction of the non-impact printing device 06 is transported.

In the sphere of action between the offset printing device 04 and the intermediate dryer 07 or dryer 09 arranged non-impact printing device 06 is preferably a second circulating conveyor belt 27 provided, on which the sheets are transported one after the other in each case preferably horizontally lying plan along a linear transport path. The transfer device is in particular between the first conveyor belt 17 and the second conveyor belt 27 arranged. Also in the scope of the intermediate dryer 07 or dryer 09 is preferably a third circulating conveyor belt 28 provided on which the non-impact printing device 06 taken arc successively each preferably horizontally plan to be transported lying along a linear transport path. The third conveyor belt 28 passes this through the intermediate dryer 07 or dryer 09 transported bow to the feed table 18 , from where the sheets successively preferably to the mechanical processing device 11 be transported. The first conveyor belt 17 , the second conveyor belt 27 and the third conveyor belt 28 preferably transport the sheets in a same z. B. horizontal, in particular designed as a flat surface transport plane 29 , The transport device 22 for the transport of sheets in a machine arrangement with processing stations each having a sheet thus comprises at least three transport units, namely the first gripper system 16 or the first chain conveyor 16 , the first conveyor belt 17 and the second conveyor belt 27 , Here are the first chain conveyor 16 and the first conveyor belt 17 cooperatively arranged for transferring a sequence of sheets from a first processing station to a second processing station preferably immediately following in the direction of transport T of the sheets of the first processing station. The sequence of sheets is from the first conveyor 17 from to the second conveyor belt belonging to the next processing station 27 to hand over. Preferably, too a third conveyor belt 28 provided, the sequence of sheets from the second conveyor belt 27 from at the one in the transport direction T of the sheet of the second processing station preferably immediately following third processing station belonging third conveyor belt 28 is handed over. In the event that the respective transport path of the first conveyor belt 17 and / or the second conveyor belt 27 or optionally the third conveyor belt 28 are not aligned linearly and / or not horizontally, transport the conveyor belts 17 ; 27 ; 28 the transport device 22 each of the arc along a curved transport path, and in particular along a lying in a vertical plane concave or convex arc line with a radius of at least 1 m, preferably with a radius in the range between 2 m and 10 m, in particular with a radius in the range between 3 m and 5 m. The conveyor belts 17 ; 27 ; 28 are preferably each as a Saugbandförderer, ie each as a conveyor belt in each case with at least one respective bow during its transport each sucking suction chamber 26 educated. At the conveyor belts 17 ; 27 ; 28 with several suction chambers 26 along the path provided for the arch transport these suction chambers 26 preferably individually and / or preferably independently controllable with respect to an action of their respective suction air. Along the curved transport path are preferably several individually controlled non-impact printing devices 06 arranged, wherein the plurality of non-impact printing devices 06 z. B. are each formed as an ink-jet printer. The conveyor belts 17 ; 27 ; 28 the transport device 22 exist in each case z. B. from a plurality of parallel individual bands which are arranged orthogonal to the intended for the sheet transport path side by side and thus each extend longitudinally to the intended for the sheet transport path. Under a conveyor belt 17 ; 27 ; 28 should in contrast to the gripper system 16 in each case a gripper-free transport device are understood, wherein the respective conveyor belt 17 ; 27 ; 28 is formed in each case endlessly circulating between at least two deflection devices.

11 shows in an enlarged detail again some details of the already using the 10 described transport device 22 , In a particularly advantageous embodiment, the sheet from the first conveyor belt is in the area of the transfer 17 to the second conveyor belt 27 orthogonal to the transport direction T the sheet a transfer device preferably with a suction drum 32 arranged. The suction drum 32 preferably consists of several, for. B. six suction rings arranged parallel to each other 76 on a common wave 89 , In a preferred embodiment of the suction drum 32 are their suction rings 76 each individually acted upon with suction or at least acted upon, which has the advantage that in the axial direction of the suction drum 32 directed effect width of this suction drum 32 In particular, depending on the format used, the sheet can be adjusted as needed or is set. The suction drum 32 has at its periphery preferably at least one in each case in the transport plane 29 the bow projecting stop 34 on, with a stop surface of the attack concerned 34 each axial to the suction drum 32 and preferably vertically to the preferably horizontal transport plane 29 extends. The suction drum 32 has either a continuous stop in its axial direction 34 or preferably two spaced apart in their axial direction stops 34 on. So that same suction drum 32 is usable for sheets of several different format widths, is in a multiple suction rings 76 having suction drum 32 preferably on each suction ring 76 at least one stop each 34 arranged. The suction drum 32 is rotatable and axially movable. The suction drum 32 has a first drive for its circumferential movement and a second drive for its axial movement, wherein the circumferential movement and the axial movement are independently controlled by a control unit. The circumferential movement and / or the axial movement of the suction drum 32 are controlled by the control unit in response to a position signal, which is one of the suction drum 32 in the transport direction T of the sheet upstream first sensor 33 by detecting the position of the suction drum 32 generated as the next reaching bow and forwarded to the control unit. The suction drum 32 has the task of registering their fed sheet register and these sheets in their respective aligned state of another processing station, in particular the non-impact printing device 06 feed, so that the sheets can be further processed there. The suction drum 32 Thus, in the preferred embodiment, directs the respective area of action of the non-impact printing device 06 supplied sheet z. B. by the at least one in the transport plane 29 the relevant arch projecting stop 34 and / or by an axial displacement of the suction drum holding the sheet in question 32 in register relative to the printing position of the non-impact printing device 06 out. One from the suction drum 32 Preferably, by means of suction, that is, by means of a negative pressure gripped arc is characterized by in dependence on that of the first sensor 33 generated position signal controlled axial movement of this suction drum 32 in particular laterally aligned with respect to its transport direction T. The suction drum 32 takes an aligned bow in particular by clocked suction, ie the suction air is z. B. in certain, preferably dependent on the transport speed and / or position of the bow angular positions of suction drum 32 quickly switched on and off again by the control unit. One at the transport level 29 to the transport direction T rectangular orientation of the front edge of the sheet concerned is preferably by a shock of this edge against the at least one stop 34 the suction drum 32 reached. Optionally z. B. in the transfer device and at least one side stop provided, against which a sheet to be aligned is pushed with a parallel to its transport direction T extending edge. The first sensor 33 is z. B. as an optical sensor, in particular as a line sensor, preferably as a CCD line sensor. The first sensor 33 detects for generating the position signal preferably a longitudinally to the transport direction T of the sheet extending edge of the sheet in question or arranged on the sheet marks, the marks are arranged in the printed image of this sheet or outside of the relevant printed image. A preferably the first sensor 33 in the transport direction T of the sheet upstream second sensor 36 , which is also preferably connected to the control unit, detects z. B. the front edge and possibly also the number of the first conveyor belt 17 to the second conveyor belt 27 transported bow. The second sensor 36 preferably detects a forward edge of the respective sheets in the transport direction T and is used primarily for sheet arrival checking. The second sensor 36 is z. B. as an optical sensor, in particular as a reflex sensor or as a light sensor. In cooperation with the suction drum 32 is z. B. at least one towards the sphere of action of the non-impact printing device 06 , ie in the direction of the second conveyor belt 27 , preferably linear, in particular along the transport path of the arc extending guide element 37 provided, wherein the relevant guide element 37 with the lateral surface of the suction drum 32 forming a gusset in which the sheets from the first conveyor belt 17 to be introduced. In the area of the first conveyor belt 17 and optionally also in the region of the second conveyor belt 27 are each z. B. one or more preferably each z. B. controllable by the control unit suction chambers 26 intended. The suction chambers 26 may be part of the transport device 22 , Including at least one suction chamber 26 of the first conveyor belt 17 in a preferred embodiment, the lateral alignment of the sheet by axial displacement of the suction drum 32 in particular after alignment of the relevant sheet on the at least one stop 34 and a shutdown of the suction air in the transport direction T of the relevant arc last suction chamber 26 , This lateral orientation of the sheet is the rotational movement of the suction drum 32 temporally superimposed. This rest of the suction drum 32 to a next processing stations 06 ; 07 ; 08 ; 09 ; 11 ; 12 to be delivered sheet in this transfer device at any time. The suction drum 32 Accordingly, the sheets in each case at least in its axial register and / or in its circumferential register registers in register relative to a processing position of the suction drum 32 subsequent processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 out.

In a machine arrangement with a plurality of processing stations for processing sheets, wherein in the transport direction T of the sheet more processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 successively arranged for inline processing of these sheets, wherein at least one of these processing stations 06 as a non-impact printing device 06 is formed, is the first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 z. B. upstream in the transport direction T of the first alignment device, said first registering the sheet at least in their axial register and / or in its circumferential register in register relative to a processing position of the first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 aligns. Also in the transport direction T is the arc between the non-impact printing device 06 and one of the non-impact printing devices 06 downstream processing station 01 ; 02 ; 03 ; 04 ; 07 ; 08 ; 09 ; 11 ; 12 z. B. a further alignment arranged, said further alignment means the sheet at least in its axial register and / or in its circumferential register in register relative to a processing position of the non-impact printing device 06 downstream processing station 01 ; 02 ; 03 ; 04 ; 07 ; 08 ; 09 ; 11 ; 12 aligns.

The arranged in particular in the transfer device suction drum 32 is z. B. also used by the offset printing device 04 to the non-impact printing device 06 to adapt to be submitted bow in their respective transport speed. As in the non-impact printing device 06 Applicable second transport speed is usually lower than that in the offset printing device 04 applicable first transport speed, brakes the suction drum 32 their successively each with the first transport speed of the offset printing device 04 each fed sheet by a shock from the front edge of the at least one stop 34 starting from, directs the respective sucked sheet in case of need, ie at a correction requirement indicating corresponding position signal of the first sensor 33 at least laterally by an axial movement of the suction drum holding the respective sheet 32 then accelerates or decelerates the gripped bow by a rotation of this suction drum 32 on the in the non-impact printing device 06 required second transport speed, the arc in question z. B. with reaching the second transport speed of the suction drum 32 solved and the suction drum 32 is then placed in their rotationally and / or axially required operating position for gripping a next sheet. The suction drum 32 accordingly rotates z. B. in each of their revolutions preferably non-uniform. One for the rotation position control of the suction drum 32 necessary position information from the front edge of the sheet provides a z. B. on a sprocket 24 arranged rotary encoder 47 or alternatively a rotary encoder of the offset printing device 04 , in particular the printing press.

As already mentioned, it is provided, with the machine arrangements described above, each of several processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 for the processing of sheets and for the transport of these sheets have at least one transport device to edit sheets of different format, ie of different length and / or width. Therefore, the generally rectangular arc differs z. B. in their respective length, with this length each extending in the transport direction T of this arc. To use a particular as a non-impact printing device 06 trained workstation 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 , which are sequentially fed to reduce the productivity of the respective machine arrangement with comparatively shorter sheets, ie in smaller size sheets compared to otherwise larger sized sheets processed in this machine arrangement, a method is proposed with the following method steps:
Method for operating a plurality of sheets of a processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 sequentially feeding transport device, in which for processing by the same processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 Arc different in each case in the transport direction T of this sheet extending length can be used, wherein the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 successively supplied sheets are transported by the transport device in each case at a distance, wherein the transport device imprints the sheet to be transported in each case a transport speed, wherein the existing between immediately successive arc distance for each sheet extending in the transport direction T of this arc length by a change of is kept constant by the transport device the relevant sheet to be applied transport speed, wherein the transport speed of the following in the transport direction T sheet is changed in relation to the transport speed of the immediately preceding sheet. In the process, those of the relevant processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 successively fed sheets to reach and / or maintain one from the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 each transported preferably at a minimum, but usually different from zero distance to be provided high productivity of the transport device. The distance between successive in the transport direction T sheet, ie between the transversely to the transport direction T extending rear edge of the previous sheet and extending transversely to the transport direction T leading edge of the immediately following sheet is z. B. in the range between 0.5 mm and 50 mm, preferably less than 10 mm. If a sheet of shorter length in the respective processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 after a larger length of sheet is to be processed, the shorter length sheet is accelerated by the transport device by increasing its transport speed. Conversely, a larger length sheet is slowed down by the transport device by a reduction in its transport speed when the sheet of greater length in the respective processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 after a bow of shorter length to edit. As a processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 is preferably a non-impact printing device 06 used, whose productivity is usually greatest when it supplied the sheets to be printed by them in succession regardless of their respective format in a constant minimum distance. If in the relevant machine arrangement of the non-impact printing device 06 a z. B. as an offset printing device 04 trained processing station 04 is upstream, are in the offset printing device 04 printed sheets regardless of their format with a production speed of this offset printing device 04 corresponding transport speed of the transport device supplied, wherein this sheet from the offset printing device 04 predetermined transport speed during its transport with the transport device to a processing speed of the non-impact printing device 06 appropriate transport speed is adjusted. If these sheets regardless of their respective format in each case in addition to a constant distance from each other of the non-impact printing device 06 to be fed, sheets of greater length are slowed down less than shorter sheets, but in any case a reduction in their respective transport speed will be required because the processing speed of the non-impact printing device 06 Usually less than the production speed of the offset printing device 04 ,

The respective sheet is preferably each force-locking z. B. during its transport from the transport device. B. by suction held. The respective arc its transport speed is preferably in each case by acting on him suction rings 76 a suction drum 32 or by at least one endless circulating suction belt 52 ; 78 impressed. In the preferred embodiment, the transport speed to be applied to the relevant sheet is adjusted by a preferably electronic control unit, wherein the control unit makes the adjustment of the transport speed, in particular to maintain the constant distance between successive sheets in a control loop, as previously described, for example. I. V. m. the rotational position control of the suction drum 32 has been described or z. I. V. m. a control device to be explained in more detail below and connected to this control device z. B. optical sensors 33 ; 36 will be described.

If, with the machine arrangements described above, each have multiple processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 for the processing of sheets and for the transport of these sheets have at least two transport devices, pliable sheets are transported and processed, ie bow low bending stiffness, especially thin sheets that can not transmit shear forces, so that put on such a sheet shear forces put this sheet in waves , then it is difficult to such arc of the relevant processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 in one for this workstation 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 supplied intended position.

Therefore, it becomes a method of sequentially feeding a plurality of sheets to a processing station processing each sheet 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 proposed in which one of the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 in the transport direction T of the sheet upstream first transport device, the arc of the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 each feeds with a first transport speed in a pushing movement, wherein the first transport device the respective of the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 feeding sheet during the pushing movement in each case holds at least one holding element, wherein the relevant of the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 fed sheets from one of these processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 associated second transport device is taken and transported in the engaged state with a second transport speed, wherein the first transport speed of the first transport device is less than the second transport speed of the second transport device, wherein the respective holding element of the first transport device of the respective processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 only after releasing the second transport device that the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 taken bow and started with the transport of this bow. As a processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 is preferably a non-impact printing device 06 used. The sheets are in the first transport device and / or in the second transport device in each case in particular in a same transport plane 29 transported. As the first transport device z. B. a first, in particular endless circulating conveyor belt 17 and / or as a second transport device, a second, in particular endless circulating conveyor belt 27 used, these conveyor belts 17 ; 27 z. B. are each formed as a suction belt. In an alternative embodiment of the holding elements, these are each as a suction ring 76 a suction drum 32 educated. On the respective the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 supplied sheet is exerted by the respective holding element of the first transport device, a holding force, said holding force is at least briefly greater than a simultaneously acting on this arc, exerted by the second transporting traction. The first transport device holds the respective processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 feeding sheet with the at least one retaining element in each case preferably by a frictional connection, for. B. by suction. The proposed method becomes that of the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 fed with a tensile stress applied sheet and thereby tightened despite executed by the first transport device thrust movement. The sheets are preferably each after an examination of their respective actual position in the transport plane 29 and in the case of a deviation of the actual position from one for the relevant sheet in the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 provided desired position passed to a completed position correction in the intended position to the second transport device.

12 shows in an enlarged section of the 10 the handover of the sheets at the feed table 18 , in particular from the third conveyor belt 28 in the sphere of action of the intermediate dryer 07 or dryer 09 to the sphere of action of the mechanical further processing device 11 , The feed table 18 has z. B. at least a fourth conveyor belt 38 which is preferably at an acute angle φ to the preferably horizontal transport plane 29 is arranged inclined. Also in conjunction with the fourth conveyor belt 38 is z. B. a third sensor 39 provided, each having a position signal from that with the fourth conveyor belt 38 generated transported sheet and passes to the control unit. It can, for. B. be provided, that one of the mechanical processing device 11 to be fed sheet through the second swing gripper 19 and the second transfer drum 31 is brought from the second transport speed to the third transport speed, which means that the relevant sheet in particular by the controlled by the control unit rotation of the second transfer drum 31 is accelerated. Also in the area of the fourth conveyor belt 38 are z. B. one or more preferably each controllable suction chambers 42 intended. In a preferred embodiment, the sheet is transferred to the mechanical further processing device at the transfer device 11 a shingling of this bow takes place. This is one of the fourth conveyor belt 38 transported bow raised in the rear area by means of pulsed blown air and the fourth conveyor belt 38 in connection with the suction chamber 42 delayed. A follow-up bend is then made by the faster moving front belt conveyor 48 pulled under the predecessor sheet.

Preferably, at the transfer device, the sheet to the mechanical processing device 11 Accordingly, a method of arranging sheets in a shingled position in a between a first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 and a subsequent in the transport direction T, the arc of the first processing station second processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 arranged transfer device executed in which the sheets to be scarfed from the first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 in a transport plane 29 are each individually transported one after the other to the transfer device, wherein each one in the transport direction T rear edge of the first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 upcoming bow exclusively by blowing air relative to the transport plane 29 lifted and a subsequent sheet be pushed under the rear edge of the respective previous arc. In this case, the blowing air acts with at least 50% of its intensity preferably in the direction of one in the transport plane 29 standing normals against gravity. Advantageously, it is provided that further blowing air counter to the transport direction T of the sheet substantially tangentially under one with the transport plane 29 formed acute angle in the range of z. B. 0 ° to 45 ° from above, ie on the transport plane 29 the surface facing away from the sheet is blown onto the sheet to be transported to the transfer device. In this case, the direction of transport T of the arc directed against another blown air from one with the transport plane occurs 29 the arc has a convergent acute angle in the range of z. B. 0 ° to 45 ° forming guide surface, wherein in the guide surface in particular nozzles are arranged for the outlet of the blowing air. The in the direction of the transport plane 29 blowing air acting against gravity is preferably clocked by the control unit. The one from the first workstation 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to the subsequent second processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to be transported sheet is in each case by means of preferably acting in the transport direction T front half of the sheet suction air in the transport plane 29 held. It will be the one from the first workstation 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to the subsequent second processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to be transported bow in the transport plane 29 holding suction air from the control unit preferably clocked. In the preferred embodiment of the control unit is an orthogonal to the transport direction T of the arc directed impact width in the direction of the transport plane 29 counter to the force of gravity blowing air and / or a range of action of the transport direction T of the bow directed against further blown air and / or a range of action for those of the first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to the subsequent second processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to be transported bow in the transport plane 29 holding suction air in each case set in response to a direction orthogonal to the transport direction T of the sheet width of the sheet. The setting of the respective effect width is in the direction of the transport plane 29 counter to the force of gravity acting blown air and the transport direction T of the bow directed against further blown air and for those of the first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to the subsequent second processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to be transported bow in the transport plane 29 holding suction air respectively mechanically or electrically coupled, z. B. geared coupled by means of a single adjustment. This adjustment is z. B. automatically depending on the format of the first processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 to the subsequent second processing station 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 controlled to transporting sheets.

13 shows schematically in a simplified representation and by way of example a transport device for the sequential transport of individual sheet-shaped substrates, these substrates each preferably as a sheet 51 , in particular printed sheets are formed. This transport device is preferably between two consecutive processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 one each bow 51 arranged processing machine, wherein one of these processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 , z. B. in the transport direction T of the sheet concerned 51 second processing station in particular as a non-impact printing device 06 , is preferably formed as at least one inkjet printing device. The basis of the 13 described transport device is as a bow 51 transporting assembly z. B. formed within one of the production lines described above and corresponds z. B. with the transport belt described above with the position number 17 or 27 ,

The basis of the 13 described transport device for sequential transport of individual sheet-shaped substrates has at least one endless circulating suction belt 52 on, wherein the at least one suction belt 52 z. B. between at least two spaced-apart guide rollers 53 is arranged. The at least one suction belt 52 points in the in the 13 indicated by an arrow transport direction T of the bow 51 behind each other on two different surface areas formed differently, wherein the surface 56 closed by one of these surface areas and the surface 57 is formed perforated from the other of these surface areas. These two surface areas alternate along the circumference of the suction belt 52 alternately from, ie they are in the direction of rotation of the respective suction belt 52 and thus in the transport direction T of the bow 51 arranged alternately. The sheet to be transported 51 is in its transport partly on the closed surface 56 of the relevant suction belt 52 and partly on the perforated surface 07 the same suction belt 52 arranged flat lying. In the transport direction T of the at least one suction belt 52 to be transported bow 51 are consecutively at least two suction chambers 58 ; 59 arranged, wherein the at least one suction belt 52 relative to these at least two stationary with respect to the transport device arranged suction chambers 58 ; 59 is moved. The at least one suction belt 52 slides z. B. over a preferably table-shaped surface 69 from at least one of these suction chambers 58 ; 59 , The in the transport direction T of the transported sheet 51 first suction chamber 58 is in the area of a load tunnel 54 of the relevant suction belt 52 arranged, whereas in the transport direction T of the sheet to be transported 51 second suction chamber 59 either also in the area of the load tunnel 54 of the relevant suction belt 52 the first suction chamber 58 in the transport direction T of the sheet to be transported 51 below or in the transport direction T of the sheet to be transported 51 after the area of the load tunnel 54 of the relevant suction belt 52 , ie the respective suction belt 52 in the transport direction T of the sheet to be transported 51 arranged downstream. A strand is a free, non-resting portion of a running, preferably endless revolving traction element, wherein the tension member z. B. as a chain, rope, belt or belt, in particular toothed belt is formed. If the tension member is formed as a chain, the at least one chain z. B. guided in a chain rail. The Lasttrum is that side of the tension member, which is pulled and is taut, whereas an empty strand is the loose, not drawn and sagging strand.

In the 13 is exemplary of the first variant for the arrangement of the second suction chamber 59 shown. In this case, in the transport direction T of the sheet 51 first suction chamber 58 As a rule, a much larger, in particular at least twice as large, volume as the transport direction T of the sheet 51 second suction chamber 59 , When transporting the bow 51 is a in the transport direction T of the transported sheet 51 first suction chamber 58 prevailing negative pressure permanently present and in the transport direction T of the arc in question 51 second suction chamber 59 clocked negative pressure, ie this negative pressure is alternately switched on or off for each adjustable duration. The in the transport direction T of the bow 51 second suction chamber 59 is therefore relatively small-volume designed to be in it in consideration of the bow 51 applicable transport speed of in particular several thousand, z. B. 10,000 to 18,000 sheets 51 Build an underpressure faster per hour and with respect to the pressure build-up and pressure reduction in the second suction chamber 59 to achieve a higher clock rate. During its transport this bow becomes 51 then to the at least one circulating suction belt 52 sucked when the perforated surface 57 of the relevant suction belt 52 with at least one of each acted upon with negative pressure suction chambers 58 ; 59 is in an operative connection. In a very advantageous embodiment of this transport device is a clocking of the negative pressure in the transport direction T of the sheet 51 second suction chamber 59 with a sweep of the bow to be transported 51 covered perforated surface 57 of the relevant suction belt 52 synchronized.

A circulation speed v of the relevant suction belt 52 is from a preferably digital program executing a control unit 61 with a this suction band 52 moving drive 62 set. This control unit 61 preferably also controls or regulates the aforementioned synchronization of the negative pressure in the transport direction T of the sheet 51 second suction chamber 59 with the sweeping of the bow 51 covered perforated surface 57 this suction band 52 z. B. by means of a valve 67 , The preferably controllable valve 67 is z. B. arranged in a line which the second suction chamber 59 with a z. B. from the control unit 61 controlled pump (not shown) connects. The preferably designed as an electric motor drive 62 acts z. B. on at least one of the guide rollers 53 , The circulation speed v of the respective suction belt 52 adjusting drive 62 is preferably from the control unit 61 regulated. From the control unit 61 is preferably a discontinuous rotational speed v of the respective suction belt 52 adjusted, ie due to the regulation of the drive 62 is the circulation speed v of the relevant suction belt 52 different from an otherwise uniform speed phased accelerated or decelerated.

At least one position of the relevant suction belt 52 is at least one register mark 63 arranged. In connection with the transport device is the relevant register mark 53 detecting sensor 54 provided and with the control unit 61 connected. In this case, the rotational speed v of the relevant suction belt 52 from the control unit 61 preferably as a function of a z. B. from the control unit 61 determined difference between a corresponding with an actual rotational speed of the sensor 64 generated first signal s1 and one with a target rotational speed corresponding second signal s2 set. The second signal s2, which is the target rotational speed of the respective circulating suction belt 52 indicates, z. B. from a (not shown) higher-level machine control tapped. The relevant register mark 63 detecting sensor 64 is especially in the area of an empty run 66 of the relevant suction belt 52 arranged. The relevant register mark 63 detecting sensor 64 is as one the relevant register mark 63 z. B. optically or inductively or capacitively or electromagnetically or with ultrasound detecting sensor 64 educated. The register mark 63 is corresponding to the respective design of the sensor 64 z. B. as one on the respective suction belt 52 applied optical signal surface or as a magnetic strip on the respective suction belt 52 or as a recess or perforation in the respective suction belt 52 or as one in the respective suction belt 52 arranged signal emitting body formed. A time of the control unit 61 executed control of the rotational speed v of the respective suction belt 52 is preferably with the sweeping of the sheet to be transported 51 covered perforated surface 57 of the relevant suction belt 52 synchronized.

In a further variant, the transport device for the sequential transport of individual sheet-shaped substrates or sheets 51 at least one stationarily arranged suction chamber 58 ; 59 with one in the area of the load tunnel 54 preferably table-shaped surface 69 on, wherein a preferably single, in particular at least partially perforated endless circulating suction belt 52 during transport of the relevant sheet-shaped substrate, ie preferably a bow 51 , over this area 69 is moving, in particular slidably disposed, wherein the respective suction chamber 58 ; 59 in the area of the load tunnel 54 of the suction belt 52 from the table-shaped surface 69 is covered. This table-shaped surface 69 is z. B. realized by a tabletop. This the relevant bow 51 suction belt holding during transport 52 is in particular centrally with respect to the orthogonal to the transport direction T directed width b51 of the arc 51 and / or also centrally with respect to a width b69 of the table-shaped area directed orthogonal to the transport direction T. 69 arranged. In this case, a width b52 of the suction belt directed orthogonally to the transport direction T is 52 formed smaller than the orthogonal to the transport direction T directed width b51 of the relevant sheet to be transported 51 and also less than the orthogonal to the transport direction T directed width b69 of the table-shaped surface 69 , The orthogonal to the transport direction T directed width b52 of the suction belt 52 is z. B. only 5% to 50% of the orthogonal to the transport direction T directed width b51 of the arc 51 and / or the orthogonal to the transport direction T directed width b69 of the table-shaped surface 69 so that the bow in question 51 not completely over its transport, in particular not with its two orthogonal to the transport direction T extending side regions on the suction belt 52 rests.

To the relevant bow 51 as low-friction as possible during transport over the at least one suction chamber 58 ; 59 covering table-shaped surface 69 Slip in at least two of the suction belt 52 not swept areas of the table-shaped surface 69 in each case at least one blow-suction nozzle 68 arranged. Here is one from the respective blow-suction nozzle 68 exiting air flow z. B. in its intensity (ie, in the pressure and / or in the flow rate) and / or duration preferably controlled or at least controllable, wherein the respective blow-suction nozzle 68 during transportation of the relevant sheet 51 Air can flow against the bottom, creating an air cushion between the bottom of the relevant sheet to be transported 51 and the table-shaped surface 69 is built or at least buildable. In the preferred embodiment, the blow-suction nozzles are 68 each formed as a venturi, wherein the Venturi nozzle a side region of the relevant sheet to be transported 51 by a negative pressure in the direction of the table-shaped surface 69 sucks. The blow-suction nozzles 68 are preferred each in the table-shaped surface 69 arranged. An exemplary embodiment of the blow-suction nozzles 68 show the 14 in a plan view with two corresponding side views, wherein the illustrated blow-suction nozzle 68 z. B. is designed in the form of a slot nozzle, wherein an opening 49 this slot nozzle preferably as a cross-section z. B. rectangular portion of a preferably cylindrical or conical lateral surface is formed, wherein in or parallel to the table-shaped surface 69 extending length l49 of this section at least three times, preferably ten times greater than its perpendicular to the table-shaped surface 69 standing height h49, whereby the length l49 of this opening 49 extends in the preferred embodiment along an arc of an inner circumferential line of a circular ring. For example, the height h49 is about 1 mm and the length l49 of this formed along a curved line opening 49 more than 10 mm. One from the respective blow-suction nozzles 68 exiting air flow LS is preferably in a particular by a shaping of a z. B. ramped guide surface directed certain direction, said guide surface z. B. is formed by an outwardly extending portion of the aforementioned annulus. A blowing direction B of the blowing suction nozzles 68 is preferably in each case in the transport direction T of the relevant sheet to be transported 51 at an angle α extending from the transport direction T in the range of 30 ° to 60 °, preferably at an angle α of 45 ° obliquely directed outwards, as shown by way of example in FIG 15 indicated by directional arrows. In the preferred embodiment, in particular in the at least one suction chamber 58 ; 59 covering table-shaped surface 69 in each case several, in particular two z. B. each aligned parallel rows of blow-suction nozzles 68 to each orthogonal to the transport direction T directed side of the suction belt 52 arranged, with the blow-suction nozzles 68 are arranged uniformly or non-uniformly spaced from each other to a symmetrical or asymmetrical flow profile for from the blow-suction nozzles 68 to generate outflowing air. The blow-suction nozzles 68 are z. B. in a bow 51 each from a chain conveyor 16 taking over transport device 17 arranged, in particular in a transfer area below the at least one sprocket 24 of the chain conveyor 16 and in front of a in the transport direction T of the transported sheet 51 subsequent further transport device, for. B. a suction drum 32 ( 11 ). A preferred arrangement of the blow-suction nozzles 68 in the table-shaped surface 69 each with respect to a position of the chain conveyor 16 moving gripper carriage 23 show the 15 and 16 , This position is in particular that on which the respective gripper carriage 23 a bow transported by him 51 for further transport to the suction belt 52 surrenders or transfers.

The central suction band 52 and in the edge area blow-suction nozzles 68 comprising transport device for the sequential transport of individual sheet-shaped substrates is advantageously used when the transported sheet 51 are surface-lacquered and these surface-painted sheets 51 still in its wet state by the transport device described above z. B. from a chain conveyor 16 be removed. The proposed solution can not only further, parallel to the centrally arranged suction belt 52 to be arranged suction belts 78 be saved, but it also those problems are avoided, with a synchronization of these other suction belts 78 to the centrally located suction belt 52 to be solved.

Moreover, with the blow-suction nozzles 68 achieved that a leading edge of the bow 51 after their respective release by the respective gripper carriage 23 from the level of a gripper impact level to a hover level scarce, ie a few millimeters above the table-shaped surface 69 is spent and that the respective released by the gripper front edge of the respective arc 51 at the level of the table-shaped surface 69 remains. Without the blow-suction nozzles 68 exists at high speed of z. B. more than 10,000 pieces per hour transported bow 51 the risk that the respective released or in the case of scaled transported bow 51 freely pushed front edge of the relevant sheet 51 buoyed by an air wedge and takes off again. In addition, with limp arches 51 or substrates in which only limited internal transverse forces are transmitted from the center belt to the outer edge regions of the respective substrate, supports these outer edge regions by the air friction caused by the air flow LS in their respective conveying component.

17 shows a section of a perspective view of a chain conveyor 16 , This chain conveyor 16 is z. B. in a machine arrangement with multiple processing stations 01 ; 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 each for processing arcuate substrates 51 arranged, and preferably at the in the transport direction T guided by the machine assembly arcuate substrates 51 rear end of one as a primer applicator 02 or as an offset printing device 04 trained workstation 02 ; 04 , where the chain conveyor 16 in the previous processing station 02 ; 04 machined arcuate substrates 51 individually in a sequential transport to a next processing station 06 transported, this being next processing station 06 z. As a non-impact printing device 06 is formed, wherein in the previous processing station 02 ; 04 machined arcuate substrates 51 in the next processing station 06 be subjected to further processing or be subjected. Here are the offset printing device 04 preferably as a sheet-fed offset printing machine and / or the non-impact printing device 06 z. B. formed as at least one inkjet printing device. In such a machine arrangement, the problem is that in the previous z. B. as an offset printing device 04 trained workstation 02 ; 04 machined arcuate substrates 51 the z. As a non-impact printing device 06 trained next processing station 06 be fed for a register-containing further processing with high positional precision, what with a conventional chain conveyor 16 due to necessary chain games and possible variations in the elongation of the at least one chain can not be accomplished. With this machine arrangement z. B. one of the basis of the 1 realized production lines.

In a chain conveyor 16 become the arcuate substrates 51 in each case individually with a gripper carriage moved along a movement path 23 transported ( 10 and 11 ), wherein the respective gripper carriage 23 usually along two longitudinally parallel to its trajectory extending mutually spaced chain paths 77 is guided. In this case, the relevant substrate to be transported is 51 in particular on a longitudinally to the respective gripper carriage 23 extending edge, ie at the front edge of this substrate 51 , of at least one on this gripper carriage 23 arranged holding means 79 , ie held by the at least one gripper. The relevant gripper carriage 23 is in the arranged at a certain position of its trajectory takeover area, in which the respective gripper carriage 23 the respective substrate to be transported 51 each receives, and / or in the arranged at a certain position of its trajectory transfer area in which the respective gripper carriage 23 the respective transported substrate 51 each in particular emits to the other transport device, z. B. by at least one between the spaced chain webs 77 along the path of movement of the respective gripper carriage 23 arranged guide element 71 guided, with the chain conveyor 16 cooperating other transport device, in particular as a conveyor belt 17 is trained ( 11 ). To the moving along its trajectory gripper carriage 23 To stabilize transversely to this trajectory, it is proposed that the at least one guide element 71 in the transfer area or in the transfer area in each case between the spaced-apart chain tracks 77 To arrange stationary and along the spaced chain tracks 77 guided gripper carriage 23 by means of the relevant guide element 71 to fix transverse to the trajectory. This fixation is preferably carried out in that on the respective gripper carriage 23 one two each with their respective treads employed against each other roles 72 ; 73 exhibiting pair of rollers is arranged, wherein the relevant guide element 71 at least in the transfer area or in the transfer area in each case by a gap between the respective running surfaces of the two roles 72 ; 73 of the respective pair of rollers is performed. The at least one guide element 71 is preferably formed as a rigid rail and / or has a wedge-shaped start-up 74 on. The relevant guide element 71 is z. B. integrally formed and extends z. B. from the transfer area to the transfer area of the chain conveyor 16 , The respective running surfaces of the opposing roles 72 ; 73 roll of the respective pair of rolls z. B. on both sides of the relevant z. B. formed as a rail guide element 71 off ( 17 to 19 ). Along the chain tracks 77 in each case in particular endlessly circulating conveyor chains are arranged, these conveyor chains each of at least one sprocket 81 are driven. This is preferably at one end of the chain conveyor 16 either in the transfer area or in the transfer area arranged sprocket 24 ; 81 the one chain train 77 and that at the same end of the chain conveyor 16 arranged in the same area sprocket 24 ; 81 the other Kettenbahn 77 are preferably by a common wave 89 in particular rigidly connected to each other. The relevant guide element 71 preferably, in cooperation with the roller pair, fixes the respective along the spaced-apart chain tracks 77 guided gripper carriage 23 lateral, ie blocks its transverse to the trajectory degree of freedom. The lateral positioning of the substrates 51 is improved by the fact that both in the takeover area, in which the substrates 51 each from one of the gripper carriage 23 be taken over, as well as in the transfer area, in which of the chain conveyor 16 transported substrates 51 from the respective gripper carriage 23 to the transfer belt 17 be passed, the relevant gripper carriage 23 each by a guide element 71 is aligned ( 10 ). These guide elements 71 are either as two separate separate guide elements 71 or contiguous as a one-piece guide element 71 educated.

In connection with the machine arrangements described above, the following method can advantageously be used to operate a single sheet-shaped substrate 51 a processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 perform sequentially feeding transport device, in which means a cooperating with the transport device control device of each substrate 51 before reaching the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 its actual position in its transport level 29 determined automatically and with one for the substrate in question 51 in this workstation 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 intended target position is compared. In the case of a deviation of the actual position from the desired position, the relevant substrate 51 of a controlled by the control device in its movement transport element of the transport device aligned such that the substrate in question 51 before reaching the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 his in this workstation 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 intended target position occupies. This is the substrate in question 51 in a very advantageous embodiment alone of the transport element in each case in the transport plane 29 both in the transport direction T and transversely thereto as well as one in the transport plane 29 aligned pivot point. This means that in this embodiment for the operation of the transport device in particular mechanical stops on the orientation of the substrate in question 51 are not involved. The processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 that the substrate in question 51 is fed and aligned with respect to its desired position, is preferably formed as a non-impact printing device. The substrate in question 51 is preferably non-positively from the transport element, z. B. held by suction or by a clamp and in this held by the transport element operating state with respect to the for this substrate 51 in the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 intended target position aligned. As a transport element is in particular a suction drum 32 or a suction belt 52 ; 78 used. The transport element transports each of the substrates 51 each individually. The control device has z. B. the control unit and at least one of its associated z. B. optical sensors 33 ; 36 on, with the sensors 33 ; 36 with regard to the detection of the actual position of the substrate concerned 51 z. B. are formed as a side edge sensor and / or as a front edge sensor. The desired position, with regard to the relevant substrate 51 is to be aligned, is or is stored in the control unit and / or z. B. deposited by a program preferably changeable. The transport element is from a the substrate in question 51 in the transport direction T moving first drive and of a substrate concerned 51 transverse to the transport direction T moving second drive and of a substrate in question 51 at the transport level 29 driven rotational center third drive driven, said z. B. in each case as a motor, in particular as a preferably electric servomotor formed drives in each case by the control device, that is controlled by the control unit. In this case, the transport element is driven by its three drives in particular at the same time. The substrate in question 51 is from the transport device with a non-zero transport speed of the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 supplied and preferably aligned while maintaining this transport speed in the event of a deviation of the actual position of the target position. In the event that the transport element as a suction belt 52 ; 78 is formed corresponds to the transport speed at which the substrate in question 51 the relevant processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 is supplied, for. B. the circulation speed v of this suction belt 52 ; 78 ,

An embodiment for carrying out the aforementioned method for operating a single arcuate substrates 51 a processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 Sequentially feeding transport device is in the 20 and 21 represented, in this example as a transport element, a suction drum 32 is used. 20 shows an enlarged detail of the 11 However, in this further embodiment of the transport device in contrast to the execution of the transport device according to the 11 one on the suction drum 32 trained stop 34 is not provided. Each individually transported substrates 51 , in particular sheets are, by means of a in the transport direction T of the suction drum 32 upstream suction belt 78 first the suction drum 32 and from the suction drum 32 to another conveyor belt 27 passed, this conveyor belt 27 the substrate in question 51 in particular a non-impact printing device 06 supplies. It is the suction drum 32 by means of suction air frictionally held substrate 51 solely from this suction drum 32 each at the transport level 29 both in the transport direction T and transversely thereto as well as one in the transport plane 29 lying pivot point with respect to in the non-impact printing device 06 for the substrate in question 51 intended target position aligned. For this purpose, the suction drum 32 a first drive 91 for their circumferential movement and a second drive 92 for their axial movement and a third drive 93 for one around a perpendicular to the transport plane 29 standing axis of rotation 94 executed or at least executable pivotal movement of the axis of rotation 96 the suction drum 32 on, these three drives 91 ; 92 ; 93 each z. B. are formed as a preferably electric servomotor. The suction drum 32 is with her first drive 91 z. B. in a first frame 97 stored, this first frame 97 in turn z. B. on a arranged in the machine center M rotary joint 98 is rotatably arranged, wherein the rotary joint 98 with a second frame 99 connected is. The around the perpendicular to the transport plane 29 standing axis of rotation 94 executed rotational movement or pivotal movement of the axis of rotation 96 the suction drum 32 takes place by means of the third drive 93 , which in its operation remote from the machine center M on the first frame 97 engages and in this way a diagonal orientation of the suction drum 32 held substrate 51 causes. This is the first frame 97 carrying second frame 99 is in turn in or on a third frame 101 arranged, with the second frame 99 in or on the third frame 101 upon actuation of the second drive 92 transverse to the transport direction T of the relevant substrate 51 is movable, in particular displaceable. This is the second frame 99 in or on the third frame 101 in a z. B. prism-shaped guide element 102 linearly guided. 21 shows the in the 20 shown transport device again in a plan view, with the suction drum 32 each executed or at least executable orientation of the substrate 51 in the transport direction T as well as transversely thereto and one in the transport plane 29 lying angle of rotation is indicated in each case by a double arrow.

Another method of operating a device for transporting sheet-shaped substrates 51 also uses the substrate in question 51 in its transport level 29 promoting transport element, wherein the transport element, the substrate in question 51 a transport element in the transport direction T of the relevant substrate 51 downstream processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 in register, this processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 z. As a non-impact printing device 06 is trained. As a transport element is preferably a suction drum 32 with a plurality of axially juxtaposed respectively as a holding element suction rings 76 or an arrangement of several longitudinally to the transport direction T of the respective substrate 51 circumferential, transversely to the transport direction T of the respective substrate 51 juxtaposed suction belts 52 ; 78 used. The transport element for transporting the relevant substrate 51 therefore always uses a plurality of transverse to the transport direction T each spaced apart holding elements, wherein the substrate in question 51 of at least two of these holding elements in each case up to one on the transport plane 29 each related output position is held in each case frictionally. In this case, the respective output positions of all the substrate in question 51 frictionally retaining holding elements on a same line 103 , The transport element becomes a diagonal register of the relevant substrate 51 set. The diagonal register of the relevant substrate 51 is thereby by setting a rotation angle β of this line 103 one perpendicular to the transport plane 29 standing axis of rotation 94 adjusted, the angle of rotation β of this line 103 according to the diagonal register of the substrate in question 51 by a triggered by a control unit actuation of a single on all the relevant substrate 51 force-locking retaining elements simultaneously acting mechanical coupling element is set, whereby the respective output position of at least one of the substrate in question frictionally retaining holding elements is changed by acting on the respective holding element mechanical coupling element. The substrate in question 51 frictionally retaining holding elements emboss the respective substrate 51 in each case a different from holding element to holding element transport speed, wherein the respective holding the respective substrate 51 impressed transport speed in each case depends on the set for the respective holding element output position. As a mechanical coupling element z. B. a linear transmission element with rocker arms and / or used with gear coupling gears, all of which the substrate in question 51 each holding either a rocker arm or a gear coupling is associated with non-positively locking holding elements.

The proposed method for operating a device for transporting sheet-shaped substrates has the advantage that for adjusting the diagonal register in the transport device, an oblique position of the relevant transport element does not occur and therefore a z. B. already set page register and / or axial register of the substrate in question can not be adversely affected by the setting of the diagonal register. Rather, a respective dependent on the respective position of the respective holding element differential speed is set between the participating in the setting of the diagonal register holding elements of the transport element by the operation of a single actuator, whereby the substrate in question is aligned according to the desired diagonal register. The use of only a single actuator for adjusting the diagonal register has the advantage that a coordination between different, respectively acting on one of the holding elements drives or their adaptation to each other is not required, whereby a source of error is eliminated and a very precise adjustment of the diagonal register is possible ,

In a preferred embodiment of this method is by means of a controller connected to the control unit of the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 In register to be supplied substrate 51 before reaching the transport element whose actual position in its transport level 29 determined and with a for the substrate in question 51 in the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 provided target position, wherein in the case of a deviation of the actual position of the target position, the control unit, the mechanical coupling element adjusting drive 93 such controls that the substrate in question 51 with reaching the respective output positions of all the substrate in question frictionally retaining holding elements in the processing station 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 intended target position with respect to the diagonal register occupies.

An embodiment for carrying out the latter method for operating a device for transporting sheet-shaped substrates 51 will now be based on the 22 to 26 explained. 22 shows in a plan view of an arcuate substrate 51 , especially a bow 51 with a width b51 directed transversely to the transport direction T thereof. Transverse to the transport direction T are also several, z. B. five retaining elements z. B. in the form of juxtaposed suction rings 76 a suction drum 32 arranged, these holding elements the substrate in question 51 in its transport level 29 each frictionally, in particular by a negative pressure hold. One of these several holding elements is z. B. in the machine center M, wherein in the illustrated example, two further holding elements are arranged in each case to the right and to the left of the machine center M. On the transport direction T of the relevant substrate 51 On the left side of the machine center M closer to the holding elements at a distance aS11 and one of the machine center M further of the holding elements are arranged at a distance aS12 and in the direction of transport T of the relevant substrate 51 On the right side, a closer of the machine center M of the holding elements at a distance aS21 and one of the machine center M further of the holding elements are arranged at a distance aS22. The respective planes of rotation of all the substrate in question 51 non-positively holding members are each parallel to each other and each longitudinal to the transport direction T of the substrate in question 51 arranged. The substrate in question 51 is in its transport of at least two of these holding elements each up to one on the transport plane 29 each related output position held frictionally, wherein the respective output positions of all the relevant substrate 51 frictionally retaining holding elements on the same line 103 are located. In the actual position of the relevant substrate 51 are the respective output positions of all this substrate 51 frictionally retaining holding elements in the present example by the reference numeral P11; P12; P21; P22, whereas in the desired position of the respective substrate 51 the respective output positions of all this substrate 51 frictionally retaining holding elements in the present example by the reference numeral S11; S12; S21; S22 are designated. Around the diagonal register of the relevant substrate 51 and thereby the substrate in question 51 At least with regard to its angular position from its actual position to bring it into its desired position, the substrate in question 51 by a rotation angle β about a plane perpendicular to the transport plane 29 standing axis of rotation 94 rotated, which is done by the straight line 103 is rotated by this angle of rotation β, which in turn takes place in that the respective output position of at least one of the substrate 51 frictionally retaining holding elements is changed by acting on the relevant holding element mechanical coupling element. The rotation angle β is usually in the range only a few degrees, z. B. between greater than zero and less than 30 °, in particular less than 10 °. The perpendicular to the transport plane 29 standing axis of rotation 94 is preferably arranged in the machine center M. In this case, the output position of the arranged in the machine center M retaining element remains unchanged, whereas each arranged by the respective holding elements in common mechanical coupling element arranged in the example shown to the right of the machine center M output positions of the respective holding elements with respect to their respective rotational speed v are set in advance and each of the arranged on the left of the machine center M output positions of the respective holding elements with respect to their rotational speed v are each trailing set. The substrate in question 51 frictionally holding, set to their respective rotational speed v holding elements shape the substrate concerned 51 during the execution of the position correction in each case a different from holding element to holding element transport speed, wherein the respective holding the respective substrate 51 impressed transport speed in each case of the set for the respective holding element, ie the desired position of the substrate in question 51 corresponding output position S11; S12; S21; S22 is dependent.

The 23 and 24 show an embodiment of the mechanical coupling element z. B. in the form of a linear gear member with rocking levers. The 25 and 26 show an embodiment of the mechanical coupling element z. B. in the form of a linear gear member with gear coupling gears. All of them are the relevant substrate 51 each holding either frictionally retaining according to the 23 and 24 a rocker arm or according to the 25 and 26 assigned a gear coupling. Similar in the 20 The arrangement shown is in the 23 to 26 shown suction drum 32 z. In one first frame 97 stored, this first frame 97 in turn z. B. on a arranged in the machine center M rotary joint 98 is rotatably arranged, wherein the rotary joint 98 with a second frame 99 connected is. This is the first frame 97 carrying second frame 99 is in turn in or on a third frame 101 arranged. In the in the 23 to 26 the embodiments shown forms the first frame 97 acting on the respective holding elements mechanical coupling element, wherein the particular designed as a preferably electric servomotor drive 93 for carrying out the rotational movement of the mechanical coupling element about the perpendicular to the transport plane 29 standing axis of rotation 94 is provided. The drive 93 acts on its operation by the control unit preferably via a joint 104 on the mechanical coupling element forming the first frame 97 , The second frame 99 has at least two diametrically opposed frame walls 106 on which rack walls 106 one parallel to the suction drum 32 extending drive shaft 107 z. B. is rotatably mounted at both ends. At the drive shaft 107 are preferably a plurality of rocker arms 108 arranged, each of these rocker arms 108 each to one of each z. B. as a suction ring 76 trained holding elements is in an operative connection. Here are the relevant rocker arms 108 each rotationally fixed to the drive shaft 107 connected so that the drive shaft 107 for the respective rocker arm 108 each forms a frame-fixed hinge point. Each of the relevant rocker arms 108 So it acts driven by the drive shaft 107 optionally via a drive pinion 113 with one of its ends, z. B. its upper end on one of the retaining elements. On the other hand, each of these is rocker arm 108 with his other ends, z. B. its lower end in each case preferably via a both ends to further each z. B. formed as a ball joint joints 111 ; 112 stored paddock 109 such with the first frame 97 connected to that with the drive 93 in each case an angular position of the drive shaft 107 connected rocker arm 108 set or at least adjustable.

The embodiment according to the 25 and 26 is the embodiment according to the 23 and 24 very similar, so that the same components are provided with the same reference numerals. The embodiment according to the 25 and 26 differs from the embodiment according to the 23 and 24 in that a pair of coupling wheels 114 is provided, which via a gear coupling 116 coupled to each other, wherein a drive pinion 117 a torque in the pair of coupling wheels 114 initiates and an output pinion 118 in the pair of coupling wheels 114 introduced torque to the relevant holding element for adjusting the angular position transfers. In this case, the pair of coupling wheels form 114 together with the drive pinion 117 and the output pinion 118 a gear coupling.

27 shows a further machine arrangement with a plurality of generally different processing stations for sequentially processing a plurality of arcuate substrates. The flat substrates, each having a front and a back, are in a feeder 01 z. B. from a suction head 41 gripped and individually by means of a swing gripper 13 to a transfer drum 14 and from there to a rotating plant pressure cylinder 119 pass, with this plant pressure cylinder 119 on its lateral surface in each case at least one of these substrates or more, z. B. receives two or three in the circumferential direction one behind the other arranged substrates. Each of the substrates to be transported is on the lateral surface of the system pressure cylinder 119 by means of at least one z. B. held as a gripper holding element. In particular, pliable and / or thin substrates with a thickness of z. B. up to 0.1 mm or a maximum of 0.2 mm z. B. also by suction on the lateral surface of the system pressure cylinder 119 be held, with a resting of such a substrate on the lateral surface of the system pressure cylinder 119 , in particular at the edges of this substrate, for. B. by in particular radially on the lateral surface of the system pressure cylinder 119 directed blown air is supported. To the plant pressure cylinder 119 is in its direction of rotation, in the 27 is indicated by a direction of rotation arrow, starting from the at this plant pressure cylinder 119 hired transfer drum 14 first, a first primer applicator 02 for priming the front side and this first primer applicator 02 below a second primer applicator 126 for priming the back side of the same sheet-shaped substrate, wherein the second primer applicator 126 the back of the substrate in question z. B. primed indirectly, in particular by a retransfer of this second primer applicator 126 on the lateral surface of the system pressure cylinder 119 applied primer from this lateral surface on the back of the substrate in question. The priming of the front and / or back of the substrate in question can be carried out over the entire surface or part of the surface as needed. The plant pressure cylinder 119 transfers a substrate primed on both sides to a first substrate having at least one tension member, in particular endless circulating transport device, for. B. to a first chain conveyor 16 , where the first chain conveyor 16 this substrate to a first non-impact printing device 06 transported, this first non-impact printing device 06 the front of the substrate in question at least partially printed. The first non-impact printing device 06 transfers the front-side printed substrate to a second at least one tension member having, in particular endless circulating transport device, for. B. to a second chain conveyor 21 , this second chain conveyor 21 the substrate in question z. B. in the area of its first sprocket 81 ( 10 ). For example, in the area of the second sprocket 24 this second chain conveyor 21 is a second non-impact printing device 127 arranged, this second non-impact printing device 127 the back of the respective previously printed on the front substrate at least partially printed. This is the first non-impact printing device 06 and the second non-impact printing device 127 arranged in succession in the transport direction T of the respective sheet-shaped substrate at different positions of the transport path of the respective substrate. The relevant now double-sided substrate is then z. B. on a stack in a display 12 stored.

The in the 27 or 28 illustrated the substrate in question on both sides machined machine assembly each has a plurality, preferably four dryers 121 ; 122 ; 123 ; 124 on, and a first dryer 121 for drying the primer applied on the front side of the respective substrate and a second dryer 122 for drying the primer applied on the back side of the relevant substrate. Moreover, a third dryer 123 for drying the relevant one with the first non-impact printing device 06 front-side printed substrate and a fourth dryer 124 for drying the subject with the second non-impact printing device 127 provided on the reverse printed substrate. The z. B. identical design dryer 121 ; 122 ; 123 ; 124 are the substrate in question z. B. formed by an irradiation with infrared or ultraviolet radiation drying, the type of radiation is particularly dependent on whether the ink applied to the substrate in question or ink is water-based or UV-curing. The transport direction T of the relevant substrate transported by the machine arrangement is in the 27 each indicated by arrows. The first non-impact printing device 06 and the second non-impact printing device 127 are each z. B. formed as at least one inkjet printing device. Within the scope of the first non-impact printing device 06 is a third transport device 128 arranged, which takes over the respective substrate primed on both sides of the first at least one traction element having transport device, transported to the second at least one pulling member having transport device and delivers to this second transport device. The substrate in question in the sphere of action of the first non-impact printing device 06 transporting third transport device 128 is z. B. as a transport cylinder ( 27 ) or as a particular endlessly circulating conveyor belt ( 28 ), wherein in the case of the transport cylinder, preferably the plurality of inkjet printing devices of the first non-impact printing device 06 are each arranged radially to this transport cylinder and wherein in the case of the conveyor belt, preferably the plurality of inkjet printing devices of the first non-impact printing device 06 in particular horizontally arranged side by side parallel to this conveyor belt. The conveyor belt is z. B. as a suction belt 52 with at least one suction chamber 58 ; 59 educated ( 13 ).

The substrate in question in the sphere of action of the first non-impact printing device 06 transporting third transport device 128 and the substrate in question in the area of action of the second non-impact printing device 127 transporting second at least one traction element having transport device each preferably have a single drive 129 ; 131 on, with these individual drives 129 ; 131 each z. B. are designed as a regulated in its respective speed and / or angular position or at least controllable preferably electrically powered motor, by means of which the respective transport devices in their respective movement behavior influencing individual drives 129 ; 131 the printing of the substrate in question on the front side by the first non-impact printing device 06 and on the back through the second non-impact printing device 127 synchronized or at least synchronized.

In a preferred embodiment, the first dryer 121 for drying the applied on the front of the substrate primer z. B. in the field of plant pressure cylinder 119 ( 27 ) or in the region of a run, in particular of the load passage of the first at least one pulling member having transport device ( 28 ) arranged. The second dryer 122 in order to dry the primer applied to the rear side of the relevant substrate, the transport device, which has at least one tension member, is preferably arranged in the region of a run, in particular of the load run. The third dryer 123 for drying the relevant one with the first non-impact printing device 06 front side printed substrate is z. B. in the region of the transport direction T of the respective substrate of the second non-impact printing device 127 arranged upstream strand, in particular load-carrying the second at least one traction device having transport device or is located in the region of the third transport device 128 , which in turn are within the scope of the first non-impact printing device 06 located and interacts with this. The fourth dryer 124 for drying the subject with the second non-impact printing device 127 printed substrate on the back is z. B. in the region of the transport direction T of the respective substrate of the second non-impact printing device 127 arranged downstream of the second at least one traction device having transport device. If one of the dryers 121 ; 122 ; 123 ; 124 is arranged in a strand of one of the transport devices, determines a length of the drying line a minimum length of the strand in question.

The substrates of the system pressure cylinder 119 receiving first at least one tension member having transport device and the substrates in the area of action of the second non-impact printing device 127 transporting second at least one pulling member having transport device transport the substrates each by means of gripper carriage 23 , these gripper cars 23 each follow one another in a preferably fixed, in particular equidistant, distance, these gripper carriages 23 each with controlled or at least controllable holding means 79 ( 15 ) are provided for holding a substrate, in particular with grippers. Each of these gripper cars 23 is moved by the relevant at least one pulling member of the relevant transport device in the transport direction T of the substrate in question. The gripper carriage 23 are in the transport direction T of the respective substrate z. B. each driven by a precision drive, wherein the precision drive in question z. B. is designed in the form of a linear drive system, the relevant precision drive the respective gripper carriage 23 and thus the relevant of the respective gripper carriage 23 in particular frictionally held substrate with an accuracy of less than ± 1 mm, preferably less than ± 0.5 mm, in particular less than ± 0.1 mm at a along the transport path z. With respect to one of the non-impact printing devices 06 ; 127 positioned in predetermined position.

In a particularly advantageous embodiment of the relevant gripper carriage 23 having transporting device are between immediately consecutive gripper carriage 23 Preferably, at least along the transport direction T of the respective substrate, a plurality of bands arranged, wherein the relevant of the respective gripper carriage 23 held substrate rests for its stabilization during its transport at least part of the surface on these preferably mutually parallel bands. Here are between successive gripper carriage 23 arranged bands along the transport direction T of the respective substrate in particular sprung arranged or formed of an elastic material.

In a further preferred embodiment, the gripper carriage 23 at least within the scope of the first non-impact printing device 06 and / or within the scope of the second non-impact printing device 127 each to stabilize their respective trajectory by at least one longitudinal to the trajectory of the respective gripper carriage 23 arranged guide element 71 guided ( 17 to 19 ). Moreover, in order to form a registration-containing and / or register-containing guide, in particular or at least within the effective range of the first non-impact printing device 06 and / or within the scope of the second non-impact printing device 127 each z. B. a catching mechanism for the respective gripper carriage 23 provided, this catching mechanism z. B. at least one moving in the direction of transport T of the substrate in question or at least has movable fork, wherein the respective gripper carriage 23 z. B. at its two transverse to the transport direction T of the respective gripper carriage 23 located ends held in the respective fork and is guided by these in his trajectory in particular passerhaltig and / or in register. Furthermore, for the registration-containing and / or register-containing alignment of the relevant substrate, in particular or at least in or immediately before the effective range of the first non-impact printing device 06 and / or in or immediately before the area of action of the second non-impact printing device 127 each z. B. an adjusting device, in particular a lateral positioning provided. The substrate in question is z. B. with the aid of this substrate sensing sensors 33 ; 36 passerhaltig and / or registered, such as i. V. m. of the 11 described.

The in the 27 or 28 The illustrated machine arrangement can also be described as a machine arrangement for the sequential processing of a plurality of arcuate substrates each having a front side and a rear side, wherein a first non-impact printing device 06 and a second non-impact printing device 127 and a first primer applicator 02 and a second primer applicator 126 are provided, wherein in each case with respect to the same arcuate substrate, the first primer applicator 02 priming the front and the second primer applicator 126 the backside are primed and wherein with respect to this substrate the first non-impact printing device 06 that of the first primer applicator 02 printed on the front side and the second non-impact printing device 127 that of the second primer applicator 126 primed on the reverse side are printed. Here are a first dryer 121 for drying the primer applied on the front side of the relevant substrate in the transporting direction T of the relevant substrate before the first non-impact printing device 06 and a second one dryer 122 for drying the primer applied on the rear side of the relevant substrate in the transport direction T of the relevant substrate before the second non-impact printing device 127 and a third dryer 123 for drying the relevant one with the first non-impact printing device 06 front side printed substrate in the transport direction T of the respective substrate after the first non-impact printing device 06 and a fourth dryer 124 for drying the subject with the second non-impact printing device 127 printed substrate on the reverse side in the transport direction T of the relevant substrate after the second non-impact printing device 127 intended. The second primer applicator 126 can either in the transport direction T of the substrate in question before or after the second non-impact printing device 127 be arranged. The first dryer 121 for drying the primer applied on the front side of the relevant substrate and / or the second dryer 122 for drying the primer applied on the back of the relevant substrate and / or the third dryer 123 for drying the relevant one with the first non-impact printing device 06 front-side printed substrate and / or the fourth dryer 124 for drying the subject with the second non-impact printing device 127 printed substrate on the back are each z. B. as a respective primed and / or printed substrate by hot air and / or by irradiation with infrared or ultraviolet radiation drying dryer, wherein the relevant primed and / or printed substrate by irradiation with infrared or ultraviolet radiation drying dryer 121 ; 122 ; 123 ; 124 is preferably designed as an LED dryer, ie as a respective semiconductor diodes using dryer. In addition, at least one transport device transporting the relevant substrate is provided, this transport device being designed as a transport cylinder or as a circulating conveyor belt or as a chain conveyor. In this case, the at least one transport device transporting the relevant substrate has at least one holding element, wherein the at least one holding element is formed holding the respective substrate by a frictional connection or by a positive fit.

LIST OF REFERENCE NUMBERS

01

 Processing station; investors; Sheet feeder; magazine investors

02

 Processing station; Primer applicator

03

 Processing station; Cold foil application device

04

 Processing station; Offset printing device; Flexo printing device

05

06

 Processing station; Non-impact printing device

07

 Processing station; intermediate dryer

08

 Processing station; painting equipment

09

 Processing station; dryer

10

11

 Processing station; mechanical processing device

12

 Processing station; display

13

 first swing gripper

14

 first transfer drum

15

16

 Gripper system; first chain conveyor

17

 first conveyor belt

18

 feed table

19

 second swing gripper

20

21

 second chain conveyor

22

 transport means

23

 gripper carriages

24

 Sprocket

25

26

 suction chamber

27

 second conveyor belt

28

 third conveyor belt

29

 transport plane

30

31

 second transfer drum

32

 suction drum

33

 first sensor

34

 attack

35

36

 second sensor

37

 guide element

38

 fourth conveyor belt

39

 third sensor

40

41

 suction head

42

 suction chamber

43

 transfer drum

44

 transfer drum

45

46

 Cutting

47

 Rotary encoder

48

 belt conveyors

49

 opening

50

51

 Bow; substratum

52

 suction belt

53

 deflecting

54

 load strand

55

56

 closed surface

57

 perforated surface

58

 suction chamber

59

 suction chamber

60

61

 control unit

62

 drive

63

 registration mark

64

 sensor

65

66

 loose side

67

 Valve

68

 Blow-suction nozzle

69

 area

70

71

 guide element

72

 role

73

 role

74

 start

75

76

 suction ring

77

 chain conveyor

78

 suction belt

79

 holding means

80

81

 Sprocket

82

 Printing cylinders

83

 Roller; anilox roller

84

 doctor; Chambered doctor blade system

85

86

 printing unit

87

 printing unit

88

 printing unit

89

 wave

90

91

 drive

92

 drive

93

 drive

94

 axis of rotation

95

96

 axis of rotation

97

 frame

98

 swivel

99

 frame

100

101

 frame

102

 guide element

103

 Just

104

 joint

105

106

 frame wall

107

 drive shaft

108

 rocker

109

 paddock

110

111

 joint

112

 joint

113

 pinion

114

 Koppel pair of wheels

115

116

 wheel coupling

117

 pinion

118

 output pinion

119

 System pressure cylinder

120

121

 dryer

122

 dryer

123

 dryer

124

 dryer

125

126

 Primer applicator

127

 Non-impact printing device

128

 transport device

129

 individual drive

130

131

 individual drive

AS11

 distance

AS12

 distance

AS21

 distance

AS22

 distance

b51

 width

b52

 width

b69

 width

B

 blowing direction

h49

 height

l49

 length

LS

 airflow

M

 machine center

P11

 output position

P12

 output position

P21

 output position

P22

 output position

s1

 first signal

s2

 second signal

S11

 output position

S12

 output position

S21

 output position

S22

 output position

T

 transport direction

v

 velocity of circulation

α

 angle

β

 angle

φ

 angle

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

• DE 1033225 A [0002]
• DE 4413089 A1 [0003]
• DE 4012948 A1 [0004]
• DE 202004006615 U1 [0005]
• DE 10157118 A1 [0006]
• DE 102009048928 A1 [0007]
• DE 10141589 B4 [0008]
• DE 102004014521 B3 [0009]
• US 2198385 A [0010]

Claims (11)

Method for operating a transport device which feeds a plurality of sheets to a processing station in a sequential manner, in which, for processing by the same processing station ( 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 ) Arc of different length each in the transport direction (T) of this sheet extending length can be used, wherein the processing station ( 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 ) to be fed successively sheets are transported by the transport device in each case at a distance, wherein the transport device imprints the sheet to be transported in each case a transport speed, wherein between immediately successive sheet existing distance for sheets different in each case in the transport direction (T) of these sheets extending length a change in the transport speed to be imposed by the transport device on the relevant sheet is kept constant, the transport speed of the transport direction (T) following the sheet is changed in relation to the transport speed of the immediately preceding sheet. A method according to claim 1, characterized in that the respective processing station ( 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 ) to be fed in succession from the transport device are each transported in a minimum and / or non-zero distance. A method according to claim 1 or 2, characterized in that a shorter length of sheet is accelerated by the transport device by increasing its transport speed when the sheet of shorter length in the respective processing station ( 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 ) is to be processed after an arc of greater length. A method according to claim 1 or 2 and 3, characterized in that a sheet of greater length is slowed down by the transport device by a reduction in its transport speed when the sheet of greater length in the respective processing station ( 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 ) to edit after a shorter arc length. Method according to claim 1 or 2 and 3 or 4, characterized in that as processing station ( 02 ; 03 ; 04 ; 06 ; 07 ; 08 ; 09 ; 11 ; 12 ) a non-impact printing device ( 06 ) is used. A method according to claim 1 or 2 and 3 or 4 or 5, characterized in that the respective sheet is held in each case during its transport by the transport device frictionally. A method according to claim 1 or 2 and 3 or 4 or 5 or 6, characterized in that the respective sheet its transport speed in each case by acting on him suction rings ( 76 ) a suction drum ( 32 ) or by at least one endless circulating suction belt ( 52 ; 78 ) is imprinted. Method according to claim 1 or 2 and 3 or 4 or 5 or 6 or 7, characterized in that the transport speed to be applied to the relevant sheet is set by a control unit. A method according to claim 8, characterized in that the control unit carries out the adjustment of the transport speed in a control loop. A method according to claim 1 or 2 and 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that the distance between successive in the transport direction (T) arc in the range between 0.5 mm and 50 mm. A method according to claim 1 or 2 and 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 , characterized in that in one of the non-impact printing device ( 06 ) upstream as an offset printing device ( 04 ) trained processing station ( 04 ) printed sheets regardless of their respective format with that of a production speed of this offset printing device ( 04 ) are conveyed to the transport device corresponding to the transport speed, the processing speed of the non-impact printing device ( 06 ) lower than the production speed of the offset printing device ( 04 ), with larger length sheets being slower during their transport with the transport device than shorter sheets.

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