EP3322658B1 - Web treatment apparatus and method for transporting at least one material web along at least one web transport path of a web treatment apparatus - Google Patents

Description

The invention relates to a web processing device and a method for transporting at least one material web along at least one web transport path of a web processing device.

Various printing methods are known which can be used in printing presses. Examples of printing processes are in particular printing processes with at least one solid printing form, in particular gravure printing process, high-pressure process, planographic printing process and through-printing process. In particular, direct and indirect printing methods are known, ie those in which the printed image is transferred to the substrate via a transfer body. An example of an indirect printing process is indirect lithographic printing or offset printing. For example, digital printing methods are also used. One such printing method is ink jet printing or ink jet printing. In this case, individual coating agent drops are ejected from nozzles of printheads and transferred to a substrate in such a way that a printed image results on the substrate. For example, by individual control of a plurality of nozzles so different printed images can be created. There is no fixed printing form and thus it is possible to design each individual print product individually. As a result, personalized printed products can be produced and / or small runs of printed products can be produced at low cost due to the saving of the printing forme.

Regardless of the printing process, it is known to use web-shaped printing material. Other types of processing such as punching and / or embossing are in the Used in connection with webs. In particular, a printing process at the same time constitutes a coating process. Material webs are, for example, further processed after processing, and / or initially wound up again.

For example, by the DE 10 2012 222 488 A1 It is known to print on a substrate web by means of a particular digital printing machine and then fed to a device for rewinding the printing material web.

By the DE 100 21 375 A1 a web-processing apparatus is known, by means of which a front part of a web can be fed to a transport path for disposal and a partial web which arises after a severance of the web can be fed to another transport path by means of a suction roller.

By the DE 10 2012 206 848 A1 a device and a method is known, wherein a material web is divided into a plurality of sheets and these sheets are optionally sorted out by means of a sheet diverter.

By the US 378 100 A a track storage device is disclosed.

By the DE 94 20 707 U1 a device with two web storage devices is disclosed.

By the US 2011/240706 A1 a web processing apparatus is known which comprises at least one intended web transport path, wherein the web processing apparatus comprises at least one web switch having at least one web entrance and at least two different web outputs and wherein the at least two different web exits are associated with at least two different web transport paths and wherein the at least one web switch at least having a cross-cutting device.

By the DE 296 23 237 U1 a device is known for feeding a web to be printed from endless material to a printer, wherein a plurality of web input devices are provided, each of which holds at least one web of endless material.

The invention has for its object to provide a web processing apparatus and a method for transporting at least one material web along at least one web transport path of a web processing device.

The object is achieved by the features of claim 1 and the features of claim 11.

A web processing device is designed for example as a printing press and / or has, for example, at least one printing unit. The printing press and / or the printing unit operates, for example, according to a printing method without a fixed printing plate and / or a printing method with a fixed printing plate. Printing methods without a fixed printing form are also referred to as non-impact printing methods (NIP = non-impact printing). They come without fixed, so physically immutable present printing form. Such printing methods can produce different print images in each printing process. Examples of non-impact printing processes are ionographic processes, magnetographic processes, thermographic processes, and in particular inkjet printing processes or ink-jet printing processes. Such printing methods usually have at least one image-forming device, for example at least one print head. In the case of the inkjet printing method, such a printhead is designed, for example, as an inkjet printhead and has at least one and preferably several nozzles, by means of which specifically at least one printing fluid, for example in the form of ink drops, can be transferred to a printing material. Printing methods without fixed printing form are, for example, digital printing methods, in particular inkjet printing methods. For example, gravure printing, letterpress printing, planographic printing, and throughprinting are both known in the art. In particular, the printing press preferably operates according to a direct and / or an indirect printing method. The printing machine works alternatively or additionally according to at least one further printing method.

The web processing device has at least one intended web transport path. For example, the intended web transport path is a web transport path originating from a web source. The web source is for example a Rollenabspulvorrichtung, in particular a reel changer. The web processing device preferably has at least one storage device, in particular Web storage device for storing a portion of the material web, which further preferably has at least one storage inlet, in particular web storage inlet and at least one storage outlet, in particular Bahnspeicherauslauf. A web storage device is, in particular, a device that is capable of picking up and releasing parts of a material web, both during ongoing operation of the web processing device. For example, during operation of the web processing apparatus, an infeed speed at which the web enters the web storage device at the storage inlet is at least temporarily different from an exit velocity at which the web exits the web storage device at the web exit at the same time.

In particular, the at least one preferably first web storage device is preferably characterized in that a at least one storage inlet or web storage inlet of the at least one first web storage device extends and extends within the at least one first web storage device and at least one storage outlet or web storage outlet of the at least one first web storage device Web storage device on the other hand extending or extending storage section of the at least one intended web transport path is variable with respect to its length. Preferably, this memory section is selectively variable in its length and / or adjustable. This length is in particular the length in the transport direction of the intended web transport path and / or along the web transport path. Preferably, this memory section is variable in length at least between a minimum state and a maximum state, wherein a length of the memory section in the maximum state is preferably at least three times, more preferably at least five times and even more preferably at least ten times as large as the length of the memory section in the minimum state.

If it is said in the foregoing and / or following that a section is of a particular type, it will be understood that this section extends in this way. When it is mentioned in the foregoing and / or below that a rail transport path or rail transport path runs in a certain manner, it is to be understood that this rail transport path or rail transport path extends in this manner. If in the preceding and / or below it is mentioned that a printing material web or partial web runs in a certain way, then it is to be understood that this printing material web or partial web extends in this way.

The web processing device has at least one in particular distributing diverter which has at least one transverse separating device and at least one connecting device and at least one web entrance and at least two in particular different web exits. The at least two track exits are preferably associated with at least two different track transport paths, which are in particular at least partially downstream of the at least two track exits. A part of the respective Bahntransportpfads is still arranged for example within the railway turnout and / or in front of the respective web exit. However, it is also possible to consider only the sections arranged outside the railroad switch as these rail transport paths, wherein at least two discharge lines are then arranged, for example, within the rail switch, which preferably each extend from one deflection point to one of the at least two rail exits. A railroad switch is in particular a switch within the rail transport path, via which a material web can be transported at least temporarily from a web entrance to a selectable web exit, in particular without necessarily severing the material web. The material web then preferably leaves the rail switch via the corresponding web exit and / or on the corresponding web transport path in one piece and in particular not as a multiplicity of sections. The cross-cutting device is preferably designed as a cross-cutting device and / or is preferably designed for severing the material web, in particular in the transverse direction and / or transversely to a transport direction. The cross-cutting device is preferably used only for severing for a relatively rare occurring redirecting a web or web. The cross-cutting device is preferably to be distinguished from a so-called cutter, which divides a material web in continuous operation into a plurality of, in particular, identical material sections whose length, for example, is less than five times their width. Preferably, an area of influence of the at least one transverse separating device is arranged along the web transport path between the web entrance on the one hand and each of the at least two web exit on the other hand. The at least one connecting device preferably serves to connect two partial webs. The at least one connecting device has, for example, at least one positioning unit and / or at least one gluing unit. The at least one connecting device is preferably a connecting device for connecting two partial webs to a material web. The at least one connection device is arranged, for example, along at least one of the at least two different web transport paths and / or is associated, for example, with a plurality of the at least two different web transport paths.

Preferably, a first part of the intended web transport path of the material web has at least one processing section, which may also be referred to as a printing section, on which the material web is processed and in particular irreversibly changed, for example coated and / or embossed and / or punched.

The at least one diverter rail is preferably arranged along the intended web transport path after at least one coating device and / or embossing device and / or punching device. The at least one diverter is preferably along the intended rail transport path to the at least one first web storage device arranged. The at least one first web storage device is preferably arranged along the intended web transport path after the at least one coating device and / or embossing device and / or punching device. Preferably, the web processing device is characterized in that the intended and in particular emanating from a train source Bahntransportweg selectively and preferably targeted by the one of at least two alternative Bahntransportpfaden continued, for example, each associated with a respective web exit of the rail switch. An optional continuation is to be understood in particular as meaning that an operator and / or a machine controller selects one of two path transport paths already preselected as possible in the machine configuration. In other words, this means that by means of the web crossover a leading end, which is in particular continuously connected to a web source, in particular by means of the cross-cutting device, can optionally be fed to one of at least two alternative web transport paths, which are preferably assigned to a respective web exit of the web crossover.

The coating device and / or embossing device and / or punching device preferably serves for coating and / or embossing and / or punching the material web. Coating means, in particular, printing and / or painting, for example with liquid and / or solid and / or gaseous coating agent. Powdery coating agents such as toner may also be used. Application of at least one further web, for example a film, also constitutes a coating. In particular, a lamination process therefore also represents a coating process. Coating takes place, in particular, independently of the coating agent, for example over the entire surface or only over a targeted area.

Due to the railway switch it is possible, the material web, of the at least one Coating device and / or embossing device and / or punching device has been processed to supply different web transport paths. For example, the material web can be separated from a suitable stele in order to supply the rear part to a different web transport path than the front part. This makes it possible, for example, to supply those sections of a material web which do not meet certain requirements to a different web transport path than those parts of the material web which are acceptable. By alternating and in particular targeted deflection of the web on different web transport paths depending on the properties of the current section of the web can thus be created on one of the web transport paths, a sub-web predominantly or exclusively high quality and on the other web transport path at least one sub-web with inferior quality. Further processing, whether in the direct connection or with intermediate collection of the material web of high quality, can be used to supply a material web of exclusively or predominantly high quality. Lesser quality arises, for example, at the beginning of a printing process, ie when setting up a printing press and / or sticking a new roll of material in a roll changer and / or malfunction of the web processing device and / or for example in a cleaning process at least one nozzle at least one print head of a printing unit and / or other non-stationary conditions of the web processing apparatus.

For example, a decision is made to assign a portion of the web to one of the web transport paths based on the condition of the web in this section. For example, in order to be able to detect and assess this condition, at least one corresponding sensor device is preferably arranged. The sensor device is in particular part of an inspection system for monitoring the quality of the web processing and / or the material web itself. The web processing device is therefore characterized by the fact that at least one sensor device for detecting a Processing quality of the web along the intended web transport path between the at least one coating and / or embossing and / or punching device on the one hand and the at least one web switch is arranged on the other hand, more preferably characterized in that at least one such sensor device between the at least one coating device and / or embossing device and / or punching device on the one hand and the at least one first web storage device on the other hand is arranged. Another trigger for a removal of a part of the material web is, for example, a certain process sequence or process state, for example a start of the web processing device or a roll change in the material source and / or a corresponding status message or error message at least one print head. Over a known distance between the sensor device and the railway switch, an optimal point for severing the material web can be controlled. Also, a manual intervention is an exemplary trigger for a discharge of a portion of the web.

The at least one first web storage device makes it possible to continue to operate the coating device and / or embossing device and / or punching device, while an already processed part of the material web is fed to another web transport path by the web crossover. In this way, a corresponding processing process in the coating device and / or embossing device and / or punching device need not be interrupted unnecessarily, but can be continued permanently. There are fewer costs due to downtimes and less waste due to interruptions. Even if the material web is stopped for cross-cutting or cross-cutting, the material web which has meanwhile been processed in the coating device and / or embossing device and / or punching device can be collected in the at least one first web storage device and then forwarded again. Preferably then, at least temporarily, a part of the material web leaving the first web storage device is included transported at a greater speed than a part of the material web entering the at least one first web storage device.

Preferably, the web processing device is characterized in that at least one second web storage device is arranged along the intended web transport path after the at least one diverter and in particular along at least one of at least two alternative web transport paths. The at least one second web storage device is preferably constructed analogously to the at least one first web storage device and operates accordingly. In particular, it can then be ensured that a device arranged after the second web storage device has to brake less quickly than the material web in the region of the web switch. For example, at least one first material collection device or web winding device or a finishing device connects to the at least one second web storage device. If necessary, such devices should not be slowed down too quickly in order to avoid processing errors, for example winding errors. For this purpose, before the braking and / or stopping of the material web in the region of the railway switch in the second web storage device, a supply can be created, for example by the web at least temporarily leaving the second web storage device less quickly than it flows in. If the material web is then braked and / or stopped in the area of the web switch, part of the material web can still be replenished from the second web storage device for a limited period of time, although no or only a smaller web of material flows into the second web storage device. This limited period of time can be used to slow down subsequent facilities more gently or to accelerate these gentler again.

The at least one intended web transport path extends or preferably extends from a web source through the at least one coating device and / or embossing device and / or punching device and in particular thereafter through the at least one first web storage device and in particular thereafter by the at least one diverter rail and is further preferably divided in the at least one diverter switch selectively on one of at least two web transport paths.

The at least one coating device and / or embossing device and / or punching device is preferably designed as at least one printing unit, more preferably as at least one printing unit operating according to a digital printing method. The at least one printing aggregate preferably has at least one print head, more preferably at least one inkjet print head. The at least one coating device and / or embossing device and / or punching device is preferred for carrying out at least one targeted and / or continuous and / or irreversible processing operation of at least one material web, in particular during a transport process of the at least one material web through the at least one coating device and / or embossing device and / or or punching device formed.

Preferably, the web processing device is characterized in that at least one first processing device is arranged along the intended web transport path after the at least one web switch and more preferably along at least a first of at least two alternative web transport paths and / or more preferably after the at least one second web storage device. The at least one first further processing device is furthermore preferably designed as at least one first material collecting device, in particular the first web winding device and / or as at least one finishing device. Under a finishing device is in particular a device to understand that brings the material web further from its original state in the state that comes closest to the finished product. Thus, a further processing in an optionally re-coating and / or an optionally re-embossing and / or in an optionally re-punching and / or in a connection with consist of at least one further material web. A further processing is alternatively or additionally at least one cutting and / or folding and / or binding of at least parts of the material web.

Preferably, the web processing device is characterized in that at least one second processing device is arranged along the intended web transport path after the at least one diverter and more preferably along at least a second of at least two alternative web transport paths and / or more preferably after at least one third web storage device. The at least one second further processing device is further preferably designed as at least one second material collecting device, in particular second web winding device and / or as at least one comminution and disposal device. A shredding device is preferably a device for destroying the material web and for converting the material web into possibly unevenly large pieces which are then to be disposed of. A disposal device is, for example, at least one collecting container and / or at least one transport device, for example at least one conveyor belt and / or at least one pipeline, in particular a suction line.

Preferably, the material web is processed by means of the web diverter and / or by means of the transverse separating device in a region of a slowed and / or stationary part of a material web continuously transported upstream, in particular along the intended web transport path and / or along the length of the material web.

The following describes a method for transporting at least one material web. Preference is given to transporting the material web along at least one at least partially provided web transport path of the web processing device, which is further preferably designed as a printing press. The material web is in particular removed continuously from a web source, for example designed as a roll-off device, as a continuous web and transported along the intended web transport path. Such removal preferably takes place in that the material web is unrolled from a roll of material formed, for example, as a substrate roll. The material web is coated and / or embossed and / or punched in the processing section of the intended web transport path, for example designed as a pressure path. Thereafter and in particular after the processing section, the material web preferably enters at least one first web storage device. In a first braking operation preferably taking place thereafter, a front part of the material web, which is located downstream relative to a reference point, is braked to a first point speed within the at least one first web storage device, while a rear part of the material web, in particular relative to the reference point upstream, in particular continues to have an unwinding speed into which at least one first web storage device runs, which is greater than the first switch speed. The reference point is, for example, a center of the storage section measured along the web transport path. For example, in this way the first web storage device is at least partially filled.

Preferably, in a particularly later first separation process, the material web is severed, in particular in the region of its front part, by means of at least one transverse cutting device, whereby a trailing end of a first front partial web and a leading end of a first rear partial web are produced. The first front partial web extends or in other words runs preferably along a first web transport path. In a particularly later first deflection process, the leading end of the first rear partial web is fed to a second web transport path different from the first web transport path by means of a particularly distributing divider. A distributing railway switch is in particular one Railway switch with a railway entrance and at least two in particular different railway exits. The rail switch preferably has at least one deflection device which performs and / or supports the first deflection process. Accordingly, the rail switch preferably has a track entrance, at least two track exits, at least one transverse separating device, at least one connecting device and at least one deflecting device. Even if a deflection device is arranged, the deflection is accordingly carried out by means of the railroad diverter, in particular comprising the deflection device.

Preferably, the method is characterized in that in a particularly later first connection process, the leading end of the first rear partial web is connected in particular by means of a connecting device with a trailing end of a second front partial web extending along the second Bahntransportpfads, ie along the second Bahntransportpfads runs and that the second front partial web is transported together with the leading end of the first rear partial web along the second Bahntransportpfads.

The cross-cutting device and / or the crossover and / or the connecting device and / or the deflecting device are driven, for example, manually or automatically or semi-automatically.

Preferably, the method is characterized in that the first course speed is zero and / or that the unwinding speed is a speed with which the material web leaves the web source. If the switch speed is zero, that is, the material web is stationary within the web turntable, a particularly precise cutting, in particular cutting the web is possible. Furthermore, this allows a particularly accurate connection of the resulting leading end with the already existing trailing end of another sub-web in another web transport path. Prefers a connection of the two partial webs by gluing. For example, the two partial webs are placed with their head ends abutting one another and connected to each other by means of an adhesive tape on one or both main surfaces. This results in a particularly flat joint, which leads to a clean winding and a particularly good convertibility even with a rewinding of the web.

Preferably, the method is characterized in that the leading end of the first rear part of a web further processing device, in particular the second processing device is supplied, which is further preferably designed as at least one second web winding device or as at least one crushing and disposal device.

Preferably, the method is characterized in that during a particularly at least partially simultaneously with the first braking operation and / or the first separation process, also referred to as the first emptying process emptying the at least one second web storage device is at least partially emptied, the second memory inlet along the first Bahntransportpfads is arranged after the railway switch.

Preferably, the method is characterized by the fact that the first rear partial web connected, for example, to the second front partial web is accelerated along the second web transport path to a deflation speed, which is preferably greater than an entry speed with which the material web is to this time enters the storage inlet or web storage inlet of the at least one first web storage device. In this way, the first web storage device is emptied again and prepared for a subsequent operation.

Preferably, the method is characterized in that in a particular subsequent second braking a then located in particular relative to the reference point downstream front part of the web is braked within the at least one first web storage device to a second course speed, while then in particular relative to the reference point upstream befindlicher rear portion of the web continues to run at an unwinding speed in the at least one first web storage device which is greater than the second switch speed. For example, the second switch speed is equal to zero and / or equal to the first switch speed. For example, in this way the first web storage device is at least partially filled, in particular again at least partially filled. In a particularly later second separating process, the material web is preferably severed in the region of its front part relative to the reference point by means of at least one and preferably the same cross-cutting device, whereby a new trailing end of the second front partial web and a leading end of a second rear partial web are formed. The second front partial web is preferably part of that second front partial web to which the leading end of the first rear partial web was previously connected.

In particular, the second front partial web preferably further extends along the second web transport path or in other words, the second front partial web preferably continues to run along the second web transport path. Preferably, in a particularly later second deflection process, the leading end of the second rear partial web is fed to the first web transport path by means of the web diverter. On this first web transport path, the trailing end of the first front part web is preferably still arranged. In a particularly later second connecting process, the leading end of the second rear partial web is preferably connected in particular by means of the connecting device to this trailing end of the first front partial web which extends along the first web transport path or, in other words, along the first Rail transport path runs. Preferably, the first front partial web is that first front partial web from which previously the leading end of the first rear partial web had been severed. More preferably, the first front partial web is transported together with the leading end of the second rear partial web along the first web transport path.

By way of example, the second web storage device is then refilled, in particular by a discharge speed of the material web from the second web storage device being kept deliberately lower at least over a filling period than an entry speed of the material web into the second web storage device. In this way, on the one hand gentle acceleration of the first further processing device is achieved after the second web storage device and on the other hand prepared the second web storage device for a new separation process and, for example, associated renewed gentle deceleration of the first further processing device.

Preferably, the method is characterized in that the first braking operation and / or the first separation process and / or the first deflection process and / or the first connection process and / or the second braking process and / or the second separation process and / or the second deflection process by at least a triggering event is triggered. The at least one triggering event is, for example, at least one manual intervention of an operator and / or at least one status message relating to at least one component of the processing device and / or at least one status message regarding at least one sub-trajectory and / or the material web and / or at least one status message regarding an advance of at least one inside or outside the processing device running process. A manual intervention can have different reasons, for example maintenance work or a roll change in the material source and / or a corresponding evaluation of a quality of a processing result and / or an emergency shutdown of a Part of the processing device. A status message concerning at least one component of the processing device is, for example, an error message of a printhead. A state report concerning at least one partial web and / or the material web is, for example, a message indicating the quality of the processing of the partial web or material web produced by the processing device. A status message concerning a progress of at least one process running inside or outside the processing device is, for example, a message regarding a roll change.

A material web and / or a part web is to be understood in particular as meaning a body which has a thickness which represents its smallest dimension, in particular its smallest dimension between mutually opposite faces, and which has a width which is its smallest, orthogonal to the thickness Dimension and having a length oriented orthogonal to the thickness and orthogonal to the width, and whose width is at least ten times and preferably at least fifty times its thickness and its length at least five times, preferably at least ten times, more preferably at least fifty times and more preferably at least one hundred times as large as its width.

A design of the web storage devices and the time sequences and the transport speeds and the minimum length of the sub-web, which is supplied to the first and the second web transport path is dependent on variables such as the web speed in the coating device and / or embossing device and / or punching device and / or in the first further processing device and the moments of inertia of the participating institutions.

It is also possible to perform a flying discharge operation without storing the web in a web memory. For this purpose, the material web is brought to a corresponding transport speed and by means of the cross-cutting device severed across. The resulting leading end of the rear partial web is thereafter or simultaneously or previously connected to a preferably with substantially the same transport speed moved further front partial web and subsequently pulled preferably from this further front partial web along a corresponding Bahntransportpfads.

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

Fig. 1a

eine schematische Darstellung einer als Rollen-Druckmaschine ausgebildeten Bahnbearbeitungsvorrichtu ng;

Fig. 1b

eine schematische Darstellung einer als Rollen-Druckmaschine ausgebildeten Bahnbearbeitungsvorrichtung mit alternativer Bahnführung;

Fig. 2

eine schematische Darstellung einer alternativen als Rollen-Druckmaschine ausgebildeten Bahnbearbeitungsvorrichtung;

Fig. 3a

eine schematische Darstellung einer ersten Bahnspeichereinrichtung und einer Bahnweiche, wobei eine zweite Bahnspeichereinrichtung an einem ersten Bahntransportpfad nach der Bahnweiche und eine Weiterverarbeitungseinrichtung an einem zweiten Bahntransportpfad nach der Bahnweiche angeordnet ist;

Fig. 3b

eine schematische Darstellung gemäß Fig. 3a in einem anderen Betriebszustand;

Fig. 3c

eine schematische Darstellung gemäß Fig. 3a in einem anderen Betriebszustand;

Fig. 3d

eine schematische Darstellung gemäß Fig. 3a in einem anderen Betriebszustand;

Fig. 3e

eine schematische Darstellung gemäß Fig. 3a in einem anderen Betriebszustand;

Fig. 3f

eine schematische Darstellung gemäß Fig. 3a in einem anderen Betriebszustand;

Fig. 3g

eine schematische Darstellung gemäß Fig. 3a in einem anderen Betriebszustand.

Show it:

Fig. 1a

a schematic representation of a trained as a roll-printing machine Bahnbearbeitungsvorrichtu ng;

Fig. 1b

a schematic representation of a trained as a roll-printing machine web processing apparatus with alternative web guide;

Fig. 2

a schematic representation of an alternative formed as a web-printing machine web processing apparatus;

Fig. 3a

a schematic representation of a first web storage device and a web diverter, wherein a second web storage device is disposed on a first web transport path to the rail switch and a further processing device on a second web transport path to the railway switch;

Fig. 3b

a schematic representation according to Fig. 3a in another operating condition;

Fig. 3c

a schematic representation according to Fig. 3a in another operating condition;

Fig. 3d

a schematic representation according to Fig. 3a in another operating condition;

Fig. 3e

a schematic representation according to Fig. 3a in another operating condition;

Fig. 3f

a schematic representation according to Fig. 3a in another operating condition;

Fig. 3g

a schematic representation according to Fig. 3a in a different operating state.

The term of a pressurized fluid in the foregoing and hereinafter ink and printing inks, but also paints and pasty materials are summarized. Preference is given to printing fluids which are transferred to a printing substrate 02 by a printing machine 01 or at least one printing unit 200 of the printing press 01 and / or are transferable and preferably in finely structured form and / or not only over a large area a preferably visible and / or sensory impression cause noticeable and / or machine detectable texture on the substrate 02. Inks and printing inks are preferably solutions or dispersions of at least one colorant in at least one solvent. Suitable solvents include, for example, water and / or organic solvents. Alternatively or additionally, the pressure fluid may be formed as under UV light crosslinking pressure fluid. Inks are relatively low viscosity printing fluids and inks are relatively high viscosity printing fluids. In this case, inks preferably have no binder or relatively little binder, while printing inks preferably relatively much binder and more preferably further auxiliaries contain. Colorants may be pigments and / or dyes, pigments being insoluble in the application medium, while dyes are soluble in the application medium.

For the sake of simplicity, the term "printing ink" in the sense of a liquid or at least free-flowing dyeing fluid to be printed in the printing press should be understood in the preceding and following - which does not only refer to the colloquial rather with the expression "Ink" brought in conjunction higher-viscosity dyeing fluid for use in rotary printing machines, but in addition to these higher viscosity dyeing fluids in particular also low-viscosity dyeing fluids such as "inks", especially inkjet inks, but also powdered dyeing fluids such. As toner includes. Thus, in the foregoing and hereinafter especially colorless paints are meant when talking of printing fluids and / or inks and / or printing inks. In the foregoing and in the following, in particular, means for a pretreatment (so-called precoating) of the printing substrate 02 are preferably meant, if mention is made of printing fluids and / or inks and / or printing inks. As an alternative to the term of the pressurized fluid, the term coating agent is to be understood as synonymous. Furthermore, for example, adhesives should also be included in the term of the coating agent, irrespective of whether they are applied over the entire surface or over part of the area.

In particular, a coating device 200 is preferably a device for, in particular, targeted application of coating agent onto a material web 02. For example, a coating device 200 is designed as a printing aggregate 200. An embossing device 200 is preferably a device for at least partially targeted reshaping of the material web 02, for example without severing the material web 02. A stamping device 02 is preferably a device for at least partially separating selectively shaped pieces of material from the web 02, for example by means of at least one pressing or striking tool and one Cutting tool. The material web 02 preferably remains at least partially preserved, in particular in such a way that the material web is not completely severed by a totality of punching processes with respect to a transverse direction and / or that its length remains substantially constant.

In the following, a web processing device 01 designed as a printing press 01 will be described by way of example. Details that do not create contradictions, but are transferable to any other web processing devices 01. At least one coating device 200 and / or embossing device 200 and / or punching device 200 is designed, for example, as a printing unit 200, in particular as at least one printing unit 200 operating according to a non-impact printing method and / or for a non-impact printing method.

The printing machine 01 has, for example, at least one web source 100 embodied as printing material source 100, at least one coating device 200 designed as a first printing aggregate 200, preferably at least one dryer unit 300 with at least one first dryer 301, for example at least one second printing aggregate 400 and, for example, at least one second dryer 331 and at least one post-processing device 500. The printing machine 01 is also designed, for example, as a printing press 01 operating according to a digital printing method, in particular as an inkjet printing machine 01. The printing machine 01 is preferably in the form of a roller printing machine 01, more preferably as a roller inkjet printing machine 01. The printing machine 01 is designed, for example, as a rotary printing press 01, for example as a rotary rotary printing press 01, in particular a rotary rotary inkjet printing press 01. Printing machine 01, the printing material source 100 is formed, for example, as Rollenabspulvorrichtung 100. In the web source 100, at least one material web 02, in particular printing material 02 is preferably aligned, preferably with respect to at least one edge of this material web 02. It is preferably at least one Einzugwerk 139 arranged, which has, for example, at least one Bahnkantenausrichter. The material web 02 is for example a printing material web 02, for example a paper web 02 or a textile web 02 or a film 02, for example a plastic film 02 or a metal foil 02. An axial direction A or transverse direction A is preferably a direction A, which is parallel to an axis of rotation 111 of a printing material roll 101 and / or to a rotation axis 207; 407 at least one central cylinder 201; 401 and / or to a rotational axis of a arranged in the first printing unit 200 Bedruckstoffleitelements and / or a longitudinal axis of a arranged in the first printing unit 200 en fixed guide element 241 extends.

A web transport path of the at least one material web 02 and in particular the printing material web 02 extends or extends after the printing material source 100, for example, first through a device 202 for pretreating the material web 02, for example a precoating device 202. This device 202 has, for example, an associated pre-dryer 214 , The web transport path of the at least one material web 02 and in particular the printing material web 02 preferably extends through the at least one first printing unit 200, where the printing substrate 02 and in particular the printing substrate 02 preferably by means of at least one coating agent, in particular at least one ink and / or printing ink at least one side and preferably in connection with the at least one second printing unit 400 is preferably provided on both sides with at least one printed image.

After passing through the at least one first printing unit 200, the web transport path of the printing material web 02, for example, passes through the dryer unit 300, in particular the at least one first dryer 301, in order to dry the applied ink and / or printing ink. For example, the at least one first dryer 301 is part of a dryer unit 300. The at least one Post-processing apparatus 500 has, for example, at least one first web storage device 501 and / or at least one web turntable 502 and / or a folding device and / or a web winding device 513 and / or at least one planned delivery. In the at least one folding device, for example, a two-sided printed substrate 02 is preferably further processed into individual printed products. The at least one web processing device 01 preferably has at least one first storage device 501, in particular first web storage device 501 for storing a part of the material web 02, which more preferably has at least one storage inlet 508, in particular web storage inlet 508 and at least one storage outlet 509, in particular web storage outlet 509.

Bedruckstoffrollen 101, which are preferably used in the Rollenabspulvorrichtung 100 used, preferably each have a sleeve on which the web-shaped substrate 02 is wound for use in the roll printing machine 01. The printing substrate 02 preferably has a width of 700 mm to 3000 mm, but may also have an arbitrarily smaller or preferably larger width. For example, a design is used for particularly wide material webs 02, which has a number of fixed guide elements 241 with a low wrap angle in the area of the printing unit. ( Fig. 3 )

A working width of the printing machine 01 is a dimension which preferably extends orthogonally to the intended web transport path of the printing substrate 02 through the at least one first printing unit 200, more preferably in the axial direction A or transverse direction A. The working width of the printing press 01 preferably corresponds to a maximum width , which may have a substrate 02, in order to be processed with the printing press 01, so a maximum processable with the printing press 01 substrate width.

The first printing unit 200 is preferably downstream of the Rollenabspulvorrichtung 100 with respect to the web transport path of the printing substrate 02. The first printing unit 200 has, for example, at least one first central pressure cylinder 201 or, shortly, central cylinder 201. If in the following a central cylinder 201 is mentioned, then a pressure central cylinder 201 is always meant. The printing material web 02 preferably at least partially wraps around the first central cylinder 201 in a printing operation. In this case, a wrap angle is preferably at least 180 ° and more preferably at least 270 °. The wrap angle is the angle measured in the web transport direction and / or circumferential direction of a cylinder jacket surface of the first central cylinder 201, along which the printing material 02 and in particular the printing material web 02 is in contact with the first central cylinder 201. The printing material web 02 wraps around, for example, a part of a first guide roller 203 and is deflected by the latter such that the web transport path of the printing material 02 extends in a first intermediate space 204 both tangentially to the first guide roller 203 and tangentially to the first central cylinder 201 or that of Web transport path of the printing substrate 02 in this first gap 204 is both tangential to the first guide roller 203 and tangent to the first central cylinder 201. For example, at least one first cylinder 206 designed as the first impression roller 206 is arranged in the first printing unit 200. In a state applied to the first central cylinder 201, the first impression roller 206 preferably forms a first impression gap 209 together with the first central cylinder 201. The printing material web 02 is preferably flat over the first deflection roller 203 and / or preferably by the first impression roller 206 clear and known position applied to the first central cylinder 201.

The first central cylinder 201 has, for example, its own first drive motor 208 assigned to the first central cylinder 201, which is preferably designed as an electric motor 208 and which is further preferably designed as a direct drive 208 and / or individual drive 208 of the first central cylinder 201. At the first Drive motor 208 of the first central cylinder 201 and / or on the first central cylinder 201 itself, a first rotation angle sensor is preferably arranged, sending a rotational angular position of the first drive motor 208 and / or the first central cylinder 201 itself measuring and / or measuring and sending to a higher-level machine control and / or is capable of broadcasting. Additionally or alternatively, the first drive motor 208 of the first central cylinder 201 is connected in such a circuit with the machine control that the machine control at any time on the basis of given by the machine control to the first drive motor 208 of the first central cylinder 201 target data to a rotational position of the first drive motor 208 via the Rotary position of the first drive motor 208 and thus at the same time the rotational position of the first central cylinder 201 is informed.

Within the first printing unit 200, at least a first printing unit 211 is arranged. The at least one first printing unit 211 is preferably arranged in the direction of rotation of the first central cylinder 201 and thus along the web transport path of the printing material web 02 after the first impression roller 206 preferably acting on the at least one first central cylinder 201 and / or operative and / or aligned and / or alignable. The at least one first printing unit 211 is preferably formed as a first inkjet printing unit 211 and is also called first inkjet printing unit 211. The at least one first printing unit 211 preferably has at least one nozzle bar 213 and more preferably a plurality of nozzle bars 213. The at least one first printing unit 211 and thus the at least one first printing unit 200 preferably has the at least one first printing head 212, which is preferably designed as an inkjet printing head 212. Preferably, the at least one nozzle bar 213 in each case has at least one print head 212 and preferably in each case a plurality of print heads 212. Each printhead 212 preferably has a plurality of nozzles from which coating agent drops, in particular ink droplets and / or drops of ink, are ejected and / or expelled.

In this case, a nozzle bar 213 is a component which preferably extends over at least 80% and more preferably at least 100% of the working width of the printing machine 01 and which serves as a carrier of the at least one print head 212. Preferably, an axial length of the bale of the at least one first central cylinder 201 is at least as large as the working width of the printing press 01. In this case, a single or a plurality of nozzle bars 213 per printing unit 211 are arranged. Each nozzle is preferably associated with a clearly defined target area in the direction A of the width of the printing material web 02 and preferably in relation to the direction A, in particular of the axis of rotation 207 of the at least one first central cylinder 201. Preferably, each target area of a nozzle, in particular in relation to the web transport direction and / or circumferential direction of the at least one first central cylinder 201, is clearly defined at least in the printing operation. In particular, a target area of a nozzle is that, in particular, substantially rectilinear space area which extends in a direction of ejection of this nozzle from this nozzle.

The at least one first nozzle bar 213 preferably extends orthogonally to the intended web transport path of the printing substrate 02 over the working width of the printing press 01. The at least one nozzle bar 213 preferably has at least one row of nozzles. The at least one row of nozzles, as seen in the axial direction A, preferably has nozzle openings at intervals, for example, over the entire working width of the printing machine 01 and / or width of the bale of the at least one first central cylinder 201. In a preferred embodiment, a plurality of print heads 212 are arranged next to each other on the at least one nozzle bar 213 in the axial direction A. Since usually such individual print heads 212 are not provided with nozzles up to an edge of their housing, preferably at least two and more preferably exactly two rows of print heads 212 extending in the axial direction A are staggered in the web transport direction and / or circumferential direction of the first central cylinder 201 arranged, preferably so that in the axial direction A successive printheads 212 preferred alternately one of the at least two rows of printheads 212, preferably always alternately a first and a second of two rows of printheads 212. Two such rows of printheads 212 form a double row of printheads 212. For example, each double row of printheads 212 has between five and twenty five Printheads 212, and more preferably seven or fourteen printheads 212. The at least one row of nozzles is preferably not formed as a single linear juxtaposition of nozzles, but results as the sum of a plurality of individual, more preferably two, in the web transport direction and / or circumferential offset staggered juxtaposition of nozzles.

If a print head 212 has a plurality of nozzles, then all target areas of the nozzles of this print head 212 together form a working area of this print head 212. Working areas of print heads 212 of a nozzle bar 213 and in particular a double row of print heads 212 adjoin one another and / or overlap in the axial direction A. seen in the axial direction A. In this way, even when the print head 212 is not continuous in the axial direction A, target areas of nozzles of the at least one nozzle bar 213 and / or in particular of each double row of print heads 212 are located at regular and preferably periodic intervals in the axial direction A. In any case, an entire working area of the at least one nozzle bar 213 preferably extends over at least 90% and more preferably 100% of the working width of the printing machine 01 and / or the entire width of the bale of the at least one first central cylinder 201 in the axial direction A. or both sides with respect to the axial direction A, there may be a narrow region of the printing material web 02 and / or the bale of the first central cylinder 201, which does not belong to the working region of the nozzle bars 213. An entire working area of the at least one nozzle bar 213 is preferably composed of all working areas of print heads 212 of this at least one nozzle bar and is preferably composed of all target areas of nozzles of these print heads 212 of this at least one nozzle bar 213. Prefers An entire work area of a double row of print heads 212 in the axial direction A corresponds to the work area of the at least one nozzle bar 213.

Preferably, the at least one nozzle bar 213 in the web transporting direction and / or circumferential direction with respect to the at least one first central cylinder 201 has a plurality of rows of nozzles. Preferably, each printhead 212 has a plurality of nozzles, which are further preferably arranged in a matrix of a plurality of rows in the axial direction A and / or multiple columns, preferably in the web transport direction and / or circumferential direction of the at least one first central cylinder 201. Such columns are further preferably arranged obliquely to the web transport direction and / or circumferential direction or extending, for example, to increase a resolution of a printed image. Thus, in each case one row of nozzles and one column of nozzles preferably enclose an angle other than 90 °. Preferred are in a direction orthogonal to the axial direction A, in particular in the transport direction along the intended web transport path of the printing substrate 02 and / or in the web transport direction and / or circumferential direction relative to the at least one central cylinder 201 a plurality of rows of print heads 212, more preferably four double rows and still more preferably, eight double rows of print heads 212 are arranged one after the other. More preferably, at least in the printing operation in the web transporting direction and / or circumferential direction with respect to the at least one first central cylinder 201, a plurality of rows of print heads 212, more preferably four double rows and still more preferably eight double rows of print heads 212 successively on the web transport path and / or on the at least one first central cylinder 201 arranged aligned.

Each double row of printheads 212 is preferably assigned and / or assigned to an ink and / or ink of a specific color, for example one of the colors black, cyan, yellow and magenta or a varnish, for example a clear varnish. The corresponding ink jet printing unit 211 is preferred as a multi-color printing unit It is also possible to print fewer or more different colors with a printing unit 211, for example additional spot colors. In one embodiment, at least in the printing mode, a plurality of rows of printheads 212, more preferably four double rows, and more preferably eight double rows of printheads 212 are sequentially aligned on at least one surface of at least one transfer body, eg, at least one transfer cylinder and / or at least one transfer belt.

The at least one print head 212 preferably operates according to the drop-on-demand method for producing coating agent drops. The nozzles of the at least one print head 212 are arranged such that a distance between the nozzles and the web transport path is preferably between 0.5 mm and 5 mm and more preferably between 1 mm and 1.5 mm, at least when the print head 212 is arranged in a print position. A drop flight time between the nozzles and the printing material web 02 is known, for example, by a teaching process and / or by the known distance between the nozzles and the printing material web 02 and a known drop speed.

Preferably, at least one sensor designed as the first print image sensor is arranged, more preferably at one point along the web transport path of the printing material web 02 after the first printing group 211. The at least one first print image sensor is designed, for example, as a first line scan camera or as a first area scan camera. The at least one first print image sensor is designed, for example, as at least one CCD sensor and / or as at least one CMOS sensor. By means of this at least one first image sensor and a corresponding evaluation unit, for example, the higher-level machine control, it is preferable to control all in the web transport direction and / or circumferential direction of the at least one first Central cylinder 201 successive lying and / or acting printheads 212 and / or double rows of printheads 212 of the first printing unit 211 monitored and / or regulated. In a first embodiment of the at least one print image sensor, only a first print image sensor is arranged, the sensor field of which encompasses the entire width of the web transport path of the printing material web 02. In a second embodiment of the at least one print image sensor only a first print image sensor is arranged, which is designed to be movable in the direction A orthogonal to the direction of the web transport path of the printing substrate 02. In a third embodiment of the at least one print image sensor, a plurality of print image sensors are arranged, whose respective sensor fields each comprise different regions of the web transport path of the printing material web 02. Preferably, these areas are arranged offset in the direction A orthogonal to the direction of the web transport path of the printing substrate 02 to each other. Preferably, an entirety of the sensor fields of the plurality of print image sensors comprises a total width of the web transport path of the printing material web 02.

A ply of pixels formed by coating agent drops originating from each first printhead 212 is preferably compared to a ply of pixels formed by coating agent drops emerging from respective second circumferentially of the at least one first central cylinder 201 and / or in the intended transport direction B of the printing substrate 02 after the respective first print head 212 arranged and / or arranged in the axial direction A to the print head 212 lying printhead 212 originate. This is preferably done independently of whether these each process first and second, in Bahntransportrichtung and / or circumferential direction of at least one first central cylinder 201 successive and / or acting printheads 212 a same or a different coating agent. A tuning of the layers of printed images from different printheads 212 is monitored. For the same coating agents is a registered Merging of sub-images monitored. With different coating agents, a register or color register is monitored. A quality control of the printed image is preferably also carried out with the measured values of the at least one printed image sensor.

Depending on the speed with which individual nozzles can be controlled and operated, the printing material web 02 may need to be printed several times with the same ink and / or ink until the desired result can be achieved. For this purpose, each ink and / or ink is preferably associated with at least two double rows of print heads 212 arranged behind one another in the web transport direction and / or circumferential direction of the first central cylinder 201.

In a regular printing operation, all printheads 212 are stationary. This ensures a permanent passport-oriented and / or register-oriented alignment of all nozzles. There are different situations where movement of the printheads 212 is necessary. A first such situation is a flying roll change or generally a roll change with gluing process or generally a web feed with a thicker point of the material web 02 to be recovered. The at least one nozzle bar 213 is therefore preferably in at least one direction of adjustment and / or along at least one travel relative to the Rotation axis 207 of the at least one first central cylinder 201 and / or the intended web transport path of the printing material 02 movable. In this way, the distance can be sufficiently increased, but must be subsequently reduced accordingly again.

If a plurality of nozzle bars 213 which are movable relative to one another are arranged, minimal misalignment of the nozzle bars 213 with one another may occur even if at least one nozzle bar 213 is returned to a pressure position. An alignment requirement can thus occur, in particular of all print heads 212 of a nozzle bar 213 Print heads 212 other nozzle bar 213. If a new and / or reordering printhead 212 attached to the at least one nozzle bar 213, to which at least one other printhead 212 is attached, it does not necessarily result but at most coincidentally exactly this alignment and new Print head 212 to be rearranged to the at least one printhead 212 already attached in the web transport direction and / or circumferential direction and / or in the axial direction A with respect to the at least one first central cylinder 201. Here, too, an alignment requirement may arise, in particular a single printhead 212 to at least one or more other printheads 212 of the same nozzle bar 213 and / or to at least one or more other printheads 212 of other nozzle bars 213.

At least one adjustment sensor preferably captures, at least temporarily, a position of the target area of at least one new and / or reordered printhead 212 relative to a location of the target area of at least one printhead 212 already attached. This is preferably done by comparing layers of printheads 212 generated by the respective printheads 212 Pixels on the substrate web 02. As a sensor for this, the already described at least one first image sensor is preferably used. However, it is also possible for this purpose to use a sensor other than the already described at least one first print image sensor, for example a sensor specialized in this task. These relative positions are evaluated by means of an evaluation unit, for example the higher-level machine control. An installation position of the at least one new and / or re-arranged print head 212 in the web transport direction and / or circumferential direction with respect to the at least one first central cylinder 201 can be compensated for by the particular timing of the nozzles of this print head 212, preferably analogously to the already described adaptation of print heads 212 different double rows of print heads 212. An installation position of the at least one new and / or re-arranged print head 212 in the axial direction A with respect to the at least one first Central cylinder 201 is preferably compensated by means of at least one adjustment mechanism. Preferably, several or all print heads 212 each have their own adjustment mechanism, more preferably, all print heads 212 each have their own adjustment mechanism.

After installation of at least one print head 212, a test print is preferably carried out in which the print head 212, which is new and / or to be arranged again, and at least one print head 212 serving as a reference transmit ink droplets and / or ink droplets to the printing material web 02. The test printout is preferably detected automatically by means of a sensor, for example the first print image sensor. In the case of a deviation of an actual position of the at least one new and / or arranged printhead 212 detected by the test printout, an adjustment of the position of this printhead 212 in the axial direction A by means of the adjustment mechanism and / or an adaptation of the control of the nozzles of this is preferably automated Printhead 212, for example, with respect to a drop ejection timing. The test print-out may, for example, be in the form of a test strip extending over part or all of the axial width of the printing substrate 02. Such test prints and in particular test strips are printed at least temporarily on the material web 02, for example at the beginning or in a running printing operation or at the end of a printing operation or when changing a material web 02 to be printed. This occurs, for example, in a region between two printed images, which in the production of finished printed products represents an edge region which is cut off anyway, in particular regardless of whether a test printout is arranged thereon or not. In other cases, larger sections occur in which the material web is made unusable by such test printouts.

After the printing material web 02 has passed the at least one first printing unit 200, the printing material web 02 is transported further along its web transport path and preferably fed to the at least one first dryer 301 of the at least one dryer unit 300. The at least one first dryer 301 is preferably designed as a flow dryer 331 and / or radiation dryer 331 and / or hot air dryer 331 and / or infrared radiation dryer 301.

At least one second printing unit 400 is preferably arranged along the web transport path of the printing material web 02. The web transport path of the printing material web 02 through the at least one second printing unit 400 preferably extends analogously to the web transport path through the at least one first printing aggregate 200 or, in other words, runs analogously to the web transport path through the at least one first printing aggregate 200. Within the second printing aggregate 400 is preferred at least a second, designed as an inkjet printing unit 411 or inkjet printing unit 411 printing unit 411 arranged, for example, aligned with a second central cylinder 401. The at least one second printing unit 411 of the at least one second printing unit 400 is preferably identical to the at least one first printing group 211 the at least one first printing unit 200 constructed, in particular with respect to at least one nozzle bar 413, at least one, designed as an ink jet printhead 412 printhead 412 and their arrangement in Double rows, the execution and resolution of the printing process, the arrangement, alignment and control of the nozzles and the mobility and adjustability of the at least one nozzle bar 413 and the at least one printhead 412 means of at least one adjustment mechanism. Preferably, the at least one second printing unit 411 is designed as a multi-color printing unit 411, in particular four-color printing unit 411. With regard to the web transport path of the printing material web 02, at least one second dryer 331, in particular the at least one dryer unit 300, is preferably arranged after the at least one second printing unit 400. The construction of the at least one second dryer 331 preferably resembles the structure of the at least one first dryer 301.

In at least one variant of the printing press, the printing machine 01 is designed as a roller-type rotary ink-jet printing machine 01 and at least one transfer body, for example with the at least one first central printing cylinder 201, forms a transfer gap. Then, preferably, the at least one print head 212 is aligned with the at least one transfer body. The central pressure cylinder 201 is preferably designed as a counter-pressure cylinder in this case.

In particular, in order to be able to eject unusable parts of the material web 02 before a further processing method, the web processing device 01, in particular printing machine 01, preferably has at least one web turntable 502 and / or at least one first web storage device 501. This results in a preferably designed as a printing press 01 web processing device 01, wherein the web processing device 01 has at least one provided and in particular by a preferably designed as Rollenabspulvorrichtung 100 web source 100 outgoing Bahntransportweg. The web processing device 01 preferably has at least one first web storage device 501 and at least one in particular distributing web turntable 502. The at least one diverter 502 is preferably designed for defining one of a plurality of alternative web transport paths of the web transport path of the material web 02, that is to say in particular for material not yet cut into sections. The at least one web turntable 502 has at least one web entrance 503 and at least two in particular different web exits 504; 506, ie in particular at least one first web exit 504 and a second web exit 506. The material web 02 thus leaves the at least one web turntable 502 via one of its web outlets preferably in the form of a web and in particular not in short material sections.

The at least one web turntable 502 has at least one cross-cutting device 507, preferably designed as a cross-cutting device 507, in particular for severing the material web 02, preferably in the transverse direction A and / or transversely to the Railway transport direction. The web shuttle 502 preferably has at least one connecting device 516. In particular, partial webs can be connected to one another to form a material web. Cross-cutting device 507 and connecting device 516 are preferably arranged in the immediate vicinity of one another in order to ensure as short a path as possible from separate and / or interconnected ends of partial webs. The at least one connecting device 516 preferably serves to connect two partial webs and has, for example, at least one positioning unit and / or at least one gluing unit.

The web processing device 01 is then preferably characterized in that the intended and in particular from the web source 100 outgoing Bahntransportweg by means of the crosswalk 502 selectively and / or selectively continue through one of at least two alternative Bahntransportpfaden, for example, each a respective web exit 503; 504 of the railway switch 502 are assigned. In the web processing device 01, therefore, by means of the web turntable 502, a leading end, preferably continuously connected to the web source 100, in particular by means of the cross web 507, can optionally be fed to one of at least two alternative web transport paths, these web transport paths preferably each to a respective web exit 503; 504 of the railway switch 502 are assigned. For example, a deflection device, not shown, is arranged.

The at least one diverter 502 is arranged along the intended web transport path after the at least one first web storage device 501. The at least one first web storage device 501 is arranged along the intended web transport path for at least one coating device 200 and / or embossing device 200 and / or punching device 200.

In particular, to be able to determine which parts of the Coating device 200 and / or embossing device 200 and / or punching device 200 processed material web 02 auszuschleusen or meet quality requirements is preferably at least one sensor device 512 is arranged, for example, as a sensor device 512 for detecting a quality of processing the web 02 along the intended web transport path between the at least one coating device 200 and / or embossing device 200 and / or punching device 200 on the one hand and the at least one web switch 502 on the other hand is arranged and further preferably between the at least one coating device 200 and / or embossing device 200 and / or punching device 200 on the one hand and the at least one first web storage device 501 on the other is.

Along the web transport path, for example, at least one further coating unit 537 is arranged, which, for example, has at least one own dryer 538. The at least one coating unit 537 serves, for example, to apply a clearcoat and / or a protective layer and / or a protective film to a printed image of the material web 02 produced by the at least one printing unit 200. At least one pull-out unit 539 is arranged along the web transport path, for example, which serves in particular to set a required web tension of the material web 02. For example, this is at least one further coating unit 537 after the at least one printing unit 200 and / or after the at least one sensor device 512 and / or before the at least one extraction unit 539 and / or before the at least one first web storage device 501 and / or in front of the at least one web diverter 502 arranged. For example, this is at least one extraction unit 539 downstream of the at least one printing unit 200 and / or after the at least one sensor device 512 and / or after the at least one further coating unit 537 and / or before the at least one first web storage device 501 and / or in front of the at least one web diverter 502 arranged.

Preferably, at least one second web storage device 517 is arranged along the intended web transport path after the at least one web turntable 502 and in particular along at least one of at least two alternative web transport paths. The at least one second web storage device 517 is preferably constructed analogously to the at least one first web storage device 501. For example, in at least one of the web storage devices 501; 517 a first row of rolls and a second row of rolls are arranged, wherein the material web 02 alternately wraps around rolls of the first and the second row of rolls. By changing a distance of the first row of rollers to the second row of rollers, this results in a change in the length of the storage section.

It follows that a within the at least one first web storage device 501 and / or within the at least one second web storage device 516, in particular between at least one storage inlet 508 or web storage inlet 508 of the respective web storage device 501; 516 and at least one storage outlet 509 or web storage outlet 509 of the respective web storage device 501; 516 extending or extending storage section 511 of the at least one intended web transport path with respect to its length, in particular in the transport direction preferably selectively changed or adjustable. Such a change or adjustment can in particular be made at least between a minimum state (see, for example, US Pat Fig. 3a ) with respect to the first web storage device 501) and a maximum state (see, for example Fig. 3c with respect to the first web memory device 501), wherein a length of the memory section 511 in the maximum state is preferably at least three times, more preferably at least five times and even more preferably at least ten times as large as the length of the memory section 511 in the minimum state.

The at least one intended Bahntransportweg runs or extends For example, starting from a web source 100 by at least one feed mechanism 139, at least one Precoating device 202 with pre-dryer 214, at least one coating device 200 and / or embossing device 200 and / or punching device 200 and then by the at least one sensor device 512 and then by the at least one Coating unit 537 and thereafter by the at least one extraction unit 539 and then by the at least one first web storage device 501 and then by the at least one diverter 502 and is preferably divided in the at least one diverter 502 selectively on one of at least two web transport paths. After the at least one web turntable 502 and preferably after the at least one second web storage device 517, further preferably at least one first further processing device 513 is arranged along the intended web transport path, which is further preferred as at least one first material collecting device 513, in particular first web winding device 513 and / or at least one Finishing device 513 is formed. Further preferably, at least one second further processing device 514 is arranged along the intended web transport path after the at least one web turntable 502, for example after at least one third web storage device, which is more preferably at least one second material collecting device 514, in particular second web winding device 514 and / or at least one comminuting and Disposal device 514 is formed.

By way of example, the at least one first further processing device 513 and / or the at least one second further processing device 514 has at least one pulling mechanism. Alternatively, the web switch 502 has at least one and preferably at least one and preferably each web transport path. By means of the at least one train, for example, a web tension is maintained and / or adjusted again after connecting two webs. In this way, a proper further processing is ensured, for example, a proper winding of the web 02 in a web winding device 513; 514th

When carrying out a method for transporting at least one material web 02 along the at least partially provided web transport path of the web processing device 01, which is preferably in the form of printing press 01, the web of material 02 is taken off continuously from the web source 100 in the form of a web unwinding device 100 as a continuous web, for example unrolled and along the intended path Transported web transport path and coated in a processing section of the intended rail transport path and / or embossed and / or punched. The material web 02 then flows into the at least one first web storage device 501, and in particular after the processing section. In a preferred, in particular later, first braking operation, a front part 518 of the material web 02 located downstream, for example, relative to a reference point, which is defined, for example, by a center of the storage section, is braked within the at least one first web storage device 501 to a first course speed, while one in particular For example, relative to the reference point upstream rear part 519 of the material web 02 continues to run at an unwinding speed into the at least one first web storage device 501, which is greater than the first switch speed, wherein preferably the first web storage device 501 is filled. In a preferably later first separation process, the material web 02 is severed in the region of its front part 518 by means of the at least one transverse cutting device 507, whereby a trailing end 521 of a first front part web 522 and a leading end 523 of a first rear part web 524 is formed, wherein the first front Part of the web 522 extends along a first Bahntransportpfads or along this first Bahntransportpfads and wherein in a particular later first deflection process the leading end 523 of the first rear part of web 524 by means of a particular distributing turnout 502 and in particular mittesl their deflection a different from the first web transport path second Web transport path is supplied.

In a later first joining operation, the leading end 523 of the first rear partial web 524 is connected, for example by means of the connecting device 516, to a trailing end 526 of a second front partial web 527 extending along the second web transport path, or in other words along the second web transport path, and For example, the second front sub-web 527 is transported with the leading end 523 of the first rear sub-web 524 along the second web transport path. In this way, the leading end 523 of the first rear part web 524 is preferably fed to a further processing device 514, which is further preferably designed as at least one second web winding device 514 and / or as at least one comminution and / or disposal device 514. The first front partial web 522 is, for example, such a part of the material web 02 which has been processed in an acceptable manner, in particular printed. The first rear part web 524 is, for example, at least in a region immediately following its leading end 523, such a part of the material web 02, the corresponding requirements is not sufficient and should be sorted out.

For example, if an acceptable processed, especially in sufficient quality printed part of the web 02 follows again, this is preferably attached to the previously separated and machined in acceptable form part of the web 02, in particular glued. This is preferably done by decelerating a front part 528 of the material web 02 downstream of the at least one first web storage device 501 to a second course speed in a later second braking operation, while one is then upstream relative to the reference point Rear part 529 of the material web 02 continues to run at an unwinding speed into the at least one first web storage device 501, which is greater than the second switch speed, wherein preferably the first web storage device 501 is at least partially filled. Furthermore, it is preferred in a later second separation process, the web 02 in the region of its then front part 528 by means of at least one transverse cutting device 507 severed, whereby a trailing end 531 of a second front part of web 532 and a leading end 533 of a second rear part of web 534 is formed. The second front partial web 532 preferably forms that part of the material web 02 which does not meet the requirements for the quality of its processing, while the second rear partial web 534 represents the processed in sufficient quality, in particular printed part of the web 02.

For example, the second front sub-web 532 extends along the second web transport path, or in other words extends along the second web transport path, for example. In a later second deflection process, the leading end 533 of the second rear partial web 534 is preferably fed to the first web transport path by means of the web diverter 502. For example, in a later second joining operation, the leading end 533 of the second trailing part web 534 is connected by means of the connecting means 516 to the trailing end 521 of the first leading part web 522 extending along the first web transport path, or in other words along the first web transport path the first front part web 522 is transported along the first web transport path with the leading end 533 of the second back part web 534. This formed after the connection of the first front part of web 522 and the second rear part of web 534 material web is then optionally up to a resulting junction a web 02, the quality of processing except for the connection point consistently meets the requirements for the quality of processing.

The first switch speed and the second switch speed are the same, for example. Preferably, the first switch speed is zero and / or the second switch speed is zero. For example, the unwinding speed is one Speed at which the material web 02 leaves the web source 100.

By way of example, a possible rail transport is shown below. During the machining process, the material web 02 is unrolled from a roll of material 02 at a substantially constant web speed. First, starting from an initial state in the second web storage device 517, a supply of material web 02 is created. While braking or even stopping of the web of material 02 as well as severing and diverting and possibly recapturing of the material web 02 to another part web takes place in the region of the web crossover, the first web memory device 501 is always further filled and the second web memory device 516 is at least partially taught. For example, the material web is slowed or stopped in the second web storage device 516, but preferably with a smaller negative acceleration than in the area of the web turntable 502. After severing and redirecting and possibly Wiederankleben the web 02 to another sub-web, the resulting web is 02 in the Bahnweiche 502 accelerated again, preferably to a speed that is greater than the web speed in the region of the web source 100. In this way, the first web storage device 501 is again at least partially emptied. In this case, the material web in the second web storage device 516 is preferably also accelerated and at least one subsequent further processing device 513 also accelerated, but preferably slower than the material web 02 in the region of the web turntable 502. In this way, in particular the second web storage device 516 is at least partially filled again and, for example, in FIG State reached, which corresponds to the initial state substantially. If the necessary operations for discharging the unacceptable parts of the material web are fast enough, the second web storage device can be used with a corresponding size to operate the first further processing device 513 without stopping continuously and only occasionally temporarily with reduced web speed. In particular, the method is therefore preferably characterized in that at least a second web storage device 517 is at least partially emptied during the preferably first at least partially simultaneously with the first braking operation and / or the first separation process taking place, the second storage inlet 536 along the first Bahntransportpfads after the rail switch 502 is arranged.

LIST OF REFERENCE NUMBERS

01

Web processing device, printing machine, inkjet printing machine, roller printing machine, roller inkjet printing machine, rotary printing machine, roller rotary printing machine, roller rotary inkjet printing machine

02

Material web, substrate, substrate web, paper web, textile web, film, plastic film, metal foil

100

Web source, substrate source, roll-off device, reel splicer

101

Material roll, substrate roll

111

Rotation axis (101)

139

infeed

200

Coating device, embossing device, punching device, printing unit, first

201

Central pressure cylinder, central cylinder, first; body of revolution

202

Facility, Precoating facility

203

Roller, guide roller

204

Gap (201; 203)

205

-

206

Cylinder, impression roller, first

207

Rotation axis (201)

208

Drive motor, electric motor, direct drive, single drive, synchronous motor

209

Impression gap, first

210

-

211

Printing unit, inkjet printing unit, inkjet printing unit, multi-color printing unit, Four-color printing unit, first

212

Printhead, inkjet printhead, first

213

Nozzle bar, first

214

pre-dryer

241

vane

300

dryer unit

301

Dryer, infrared radiation dryer, radiation dryer, flow dryer, UV radiation dryer, hot air dryer, first

331

Dryer, infrared radiation dryer, flow dryer, radiation dryer, hot air dryer, UV radiation dryer, second

400

Printing unit, second

401

Central pressure cylinder, central cylinder, second; body of revolution

408

Drive motor, direct drive, electric motor, single drive, synchronous motor

409

-

410

-

411

Printing unit, inkjet printing unit, inkjet printing unit, multi-color printing unit, four-color printing unit, second

412

Printhead, inkjet printhead, second

413

Nozzle bar, second

500

post-processing device

501

Storage device, web storage device, first

502

railway Soft

503

Railway entrance (502)

504

Web exit (502), first

505

-

506

Web exit (502), second

507

Cross-cutting device, cross-cutting device

508

Storage inlet, web storage inlet

509

Storage outlet, web storage outlet

510

-

511

storage section

512

sensor device

513

Further processing device, material collection device, web winding device, finishing device, first

514

Further processing device, material collection device, web winding device, crushing and disposal device, second

515

-

516

connecting device

517

Web storage device, second

518

Part, front (02)

519

Part, rear (02)

520

-

521

End, trailing (522)

522

Teilbahn, first, front

523

End, leading (524)

524

Partial, first, rear

525

-

526

End, trailing (527)

527

Partial track, second, front

528

Part, front (02)

529

Part, rear (02)

530

-

531

End, trailing (532)

532

Partial track, second, front

533

End, leading (534)

534

Partial track, second, rear

535

-

536

Storage inlet, second (517)

537

coating plant

538

Dryer (537)

539

excerpt

A

Transverse direction, direction, axial

Claims (15)

1. A web treatment apparatus (01), wherein the web treatment apparatus (01) has at least one provided web transport path and wherein the web treatment apparatus (01) has at least one web diverter (502) which has at least one web entrance (503) and at least two different web exits (504 ; 506), and wherein the at least two different web exits (504; 506) are assigned to at least two different web transport paths, and wherein the at least one web diverter (502) has at least one transverse cutting device (507), characterized in that the at least one web diverter (502) has at least one connecting device (516) for connecting two part-webs (522; 524; 527; 532; 534) to form a material web (02).
2. The web treatment apparatus according to claim 1, characterized in that the at least one web diverter (502) is arranged along the provided web transport path after at least one coating device (200) and/or embossing device (200) and/or punching device (200).
3. The web treatment device according to claim 2, characterized in that the at least one coating device (200) is configured as at least one printing assembly (200) for a non-impact printing method and/or that at least one sensor device (512) for detecting a processing quality of the material web (02) is arranged along the provided web transport device between the at least one coating and/or embossing and/or punching device (200) on the one side and the at least one web diverter (502) on the other side and/or that the at least one coating device (200) is configured as at least one printing assembly (200).
4. The web treatment device according to claim 1 or 2 or 3, characterized in that the web treatment device (01) has at least one first web storage device (501).
5. The web treatment device according to claim 4, characterized in that the at least one web diverter (502) is arranged along the provided web transport path after the at least one first web storage device (501) and/or that the at least one first web storage device (501) is arranged along the provided web transport path after at least one coating device (200) and/or embossing device (200) and/or punching device (200) and/or that a storage section (511) of the at least one provided web transport path extending within the at least one first web storage device (501) is adjustable in its length.
6. The web treatment device according to claim 1 or 2 or 3 or 4 or 5, characterized in that the at least one connecting device (516) is arranged along at least one of the at least two different web transport paths and/or that the at least one connecting device (516) is assigned to a plurality of the at least two different web transport paths.
7. The web treatment device according to claim 4 or 5 or 6, characterized in that at least one second web storage device (517) is arranged viewed along the provided web transport path after the least one web diverter (502).
8. The web treatment device according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, characterized in that the two different web exits (504; 506) are assigned to two different web transport paths, which are downstream from the at least two web exits (504; 506).
9. The web treatment device according to claim 4 or 5 or 6 or 7 or 8, characterized in that the storage section (511) of the at least one provided web transport path extending within the at least one first web storage device (501) is adjustable in its length at least between a minimum state and a maximum state, wherein a length of the memory section (511) in the maximum state is at least three times as great as the length of the memory section (511) in the minimum state.
10. The web treatment device according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that an active region of the at least one transverse cutting device (507) is arranged along the provided web transport path between the web entrance (503) on the one side and each of the at least two web exits (504; 506) on the other side.
11. A method for transporting at least one material web (02), wherein the material web (02) is removed from a web source (100) as a continuous web and transported along a provided web transport path and coated and/or embossed and/or punched in a processing step of the provided web transport path and wherein in a first cutting operation the material web (02) is cut by means of at least one transverse cutting device (507), whereby a trailing end (521) of a first front part-web (522) and a leading end (523) of a first rear part-web (524) is formed and wherein the first front part-web (522) extends along a first web transport path and wherein in a first redirection operation the leading end (523) of the first rear part-web (524) is fed to a second web transport path different from the first web transport path by means of a web diverter (502) and wherein in a first connecting operation the leading end (523) of the first rear part-web (524) is connected to a trailing end (526) of a second front part-web (527) which extends along the second web transport path and wherein the second front part-web (527) is transported together with the leading end (523) of the first rear part web (524) along the second web transport path.
12. The method according to claim 11, characterized in that, after having been coated and/or embossed and/or punched in the processing step, the material web (02) runs to at least one first web storage device (501) and that in a first braking operation a front part (518) of the material web (02) located downstream is braked to a first track speed within the at least one first web storage device (501), while a rear part (519) of the material web (02) located upstream runs at a rolling speed to the at least one web storage device (501) that is greater that the track speed and that takes place after the first cutting operation and the first redirection operation.
13. The method according to claim 12, characterized in that the first track speed is zero and/or that the rolling speed is a speed at which the material web (02) exits the web source (100).
14. The method according to claim 11 or 12 or 13, characterized in that the first braking operation and/or the first cutting operation and/or the first redirection operation and/or the first connecting operation and/or the second braking operation and/or the second cutting operation and/or the second redirection operation is triggered by at least one triggering event and that the at least one triggering event is at least one manual intervention of an operator and/or at least one status message relating to at least one part of the web treatment device (01) and/or at least one status message relating to at least one part-web and/or the material web (02) and/or at least one status message relating to a progress of at least one process running within or outside of the web treatment device (01).
15. The method according to claim 11 or 12 or 13 or 14, characterized in that during a first emptying operation taking place at least partly simultaneously with the first braking operation and/or the first cutting operation at least one second web storage device (517) is at least partly emptied, whose storage inlet (536) is arranged along the first web transport path after the web diverter (02).

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