DE102011088776B3 - Rotary printing machine, particularly roll rotary printing machine or inkjet printing machine, comprises printing unit and dryer, where printing unit has central cylinder with separate drive motor arranged at central cylinder - Google Patents

Rotary printing machine, particularly roll rotary printing machine or inkjet printing machine, comprises printing unit and dryer, where printing unit has central cylinder with separate drive motor arranged at central cylinder

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Publication number
DE102011088776B3
DE102011088776B3 DE102011088776A DE102011088776A DE102011088776B3 DE 102011088776 B3 DE102011088776 B3 DE 102011088776B3 DE 102011088776 A DE102011088776 A DE 102011088776A DE 102011088776 A DE102011088776 A DE 102011088776A DE 102011088776 B3 DE102011088776 B3 DE 102011088776B3
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Germany
Prior art keywords
preferably
dryer
central cylinder
printing
web
Prior art date
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Application number
DE102011088776A
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German (de)
Inventor
Christoph Häcker
Frank Huppmann
Stefan Wander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to DE102011088776A priority Critical patent/DE102011088776B3/en
Priority claimed from EP12718200.4A external-priority patent/EP2714408B2/en
Priority claimed from PCT/EP2012/069916 external-priority patent/WO2013087249A1/en
Application granted granted Critical
Publication of DE102011088776B3 publication Critical patent/DE102011088776B3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0476Cooling
    • B41F23/0479Cooling using chill rolls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403Drying webs
    • B41F23/0406Drying webs by radiation
    • B41F23/0413Infra-red dryers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403Drying webs
    • B41F23/0436Drying webs using a combination of radiation, conduction or convection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002Heating or irradiating, e.g. by UV or IR, or drying of copy material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/377Cooling or ventilating arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04Supporting, feeding, or guiding devices; Mountings for web rolls or spindles

Abstract

The invention relates to a rotary printing machine, wherein the rotary printing machine has at least one first printing unit and at least one first dryer, wherein the at least one first printing unit at least one central cylinder with its own, at least one first central cylinder associated drive motor and at least one, on a lateral surface of the at least one wherein the at least one first dryer has at least one venting device and wherein the at least one venting device comprises at least one air supply duct leading to the at least one first dryer and at least one air discharge duct leading away from the at least one first dryer and at least one powered and / or or drivable conveying device and wherein the at least one air discharge line coupled via the at least one conveyor with the at least one air supply line and / or can be coupled.

Description

  • The invention relates to a rotary printing machine according to the preamble of claim 1.
  • Various printing methods are known which can be used in rotary printing machines. One such printing method is ink jet printing or ink jet printing. In this case, individual ink drops are ejected from nozzles of printheads and transferred to a substrate, that results in a print image on the substrate. By individual control of a plurality of nozzles so different print 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.
  • An exact match of a print image on the front and back of a printed substrate printed on both sides is called register (DIN 16500-2). Multi-color printing is called the Passer (DIN 16500-2), when individual print images of different colors are combined exactly to a picture. Also in the context of inkjet printing, appropriate measures must be taken to maintain register and / or register.
  • By the EP 2 202 081 A1 and the JP 2003-063737 A In each case, a printing press is known, wherein the printing press has a first printing unit and a dryer, wherein the first printing unit has a central cylinder with its own, the first central cylinder associated drive motor and at least one, aligned on a cylinder surface of the first central cylinder ink jet print head.
  • By the EP 1 155 987 B1 a Rollenabspulvorrichtung a web-fed rotary printing machine is known, wherein the Rollenabspulvorrichtung at least one roller holding device and at least one, connected to the at least one roller holding device via at least one torque transducer drive motor and wherein the Rollenabspulvorrichtung has at least one common carrier or support frame having two support arms and / or on which two support arms are arranged and which is arranged pivotable about a pivot axis relative to a stationary frame of the Rollenabspulvorrichtung.
  • By the US 2011/0205321 A1 a rotary printing machine is known which comprises at least a first printing unit and at least a first dryer, wherein the at least one first printing unit has a central cylinder with its own drive motor and at least one, on a lateral surface of the at least one first central cylinder aligned ink jet print head and wherein the at least one first Dryer has at least one ventilation device having at least one leading to the at least one first dryer air supply line and at least one driven and / or driven conveyor.
  • By the DE 102 35 872 A1 a rotary printing press is known, which has at least a first printing unit and at least a first dryer, wherein the at least one first printing unit has at least one central cylinder with its own drive motor and at least one aligned on a lateral surface of the at least one first central cylinder ink jet print head.
  • By the DE 10 2011 075 109 A1 a rotary printing machine is known which comprises at least a first printing unit and at least a first dryer, wherein the at least one first dryer has at least one ventilation device and wherein the at least one ventilation device at least one leading to the at least one first dryer air supply line and at least one driven and / or drivable conveying device has at least one leading away from the at least one first dryer air discharge line and wherein the at least one air discharge line via the at least one conveyor with the at least one air supply line is coupled and / or coupled.
  • It is known to use the inkjet printing process for printing on textile substrates. Textile printing materials are to be understood in particular as those materials as compiled in DIN 60000 (January 1969). In contrast to substrates such as paper or metal, textile substrates are relatively unstable in their shape. For example, textile fabrics are often more or less extensible, with an expansion in one direction usually resulting in a compression in another, for example orthogonal, direction. For this reason, not only one position of the printing substrate must be correctly set for a register-appropriate printing on textile substrates, but also a stable form of the printing material must be provided at least during the printing process.
  • The invention has for its object to provide a rotary printing press.
  • The object is achieved by the features of claim 1.
  • The achievable with the present invention consist in particular that energy can be saved by a corresponding ventilation device, especially because of a dryer escaping gas can be fed back to this dryer and thereby heat energy can be used again. Furthermore, in the case of an exhaust air treatment, for example, exhaust air purification to treat a lower volume of exhaust air. In particular, this can also be reacted to flexible demands on the dryer on the basis of flexibly adjustable print images, as they can occur in particular in connection with printing processes on inkjet printheads. Thus, with a changed proportion of reused or discharged exhaust air to different amounts of printed ink per surface of the substrate can be reacted without operating parameters of the rest of the dryer would have to be changed.
  • A further advantage is that a particularly precise transport of a printing material web is made possible by the preferred arrangement of at least two web edge aligners and thus a particularly good printing result can be achieved.
  • Another advantage is that a compact design can be achieved by appropriate arrangement of the at least one central cylinder and the at least one driver and / or preferably at least one dryer and / or preferably a Rollenabspulvorrichtung. In particular, by a preferred arrangement of corresponding dryer and optionally cooling devices can be provided on short transport routes for drying a substrate and in particular a printing material. Short transport routes avoid difficulties with the register and / or the register and a lot of white waste is kept low. By appropriate arrangements of printing units and dryers smearing already printed images can be avoided. The preferred arrangement of a dryer unit with two dryers improves the accessibility of printing units and dryers and ensures an optimized transport path of the printing substrate and in particular of the printing material web. A preferred use of at least one radiation dryer improves energy efficiency, in particular in the case of an infrared radiation dryer. This is preferably reinforced by a combination of radiation dryer and flow dryer. For this purpose, at least one ventilation device is preferably arranged on the at least one dryer. A preferred symmetrical structure with respect to the central cylinder and the dryer allows a modular design, in which a simple reversal of the direction of the printing machine by means of fewer guide rollers is possible.
  • Another advantage is that, if desired, a web tension of the printing material web can be regulated particularly well. This results, for example, from a preferred multiplicity of driven rotational bodies and / or corresponding impression rollers which are in contact therewith and / or preferably a series of measuring rollers. The so preferably regulated web tension ensures in addition to avoiding web breaks and / or hangers for an improvement of register and / or register, since strains of the printing material directly depend on the printing substrate acting forces.
  • Embodiments of the invention are illustrated in the drawings and will be described in more detail below.
  • Show it:
  • 1 a schematic representation of a web-fed rotary printing machine;
  • 2 a schematic representation of a portion of a printing unit with a double row of printheads;
  • 3 a schematic representation of a portion of a dryer;
  • 4 a schematic enlarged view of a portion of the 3 ;
  • 5 a schematic representation of a printing substrate and multiple radiation sources of a dryer;
  • 6 a schematic representation of a Rollenabspulvorrichtung;
  • 7 a schematic representation of a part of a Rollenabspulvorrichtung;
  • 8th a schematic representation of a support frame of a Rollenabspulvorrichtung;
  • 9 a schematic representation of a feeder of a Rollenabspulvorrichtung;
  • 10 a schematic representation of a transport path of a printing substrate in a post-processing device.
  • One as a rotary printing machine 01 trained printing machine 01 has at least one printing material source 100 , at least a first printing unit 200 , preferably at least a first dryer 301 , preferably at least a second printing unit 400 and preferably at least a second dryer 331 and at least one post-processing device 500 on. The printing press 01 is also preferred as an inkjet printing machine 01 educated. The printing press is preferred 01 as a web-fed rotary press 01 educated. In this case, the printing material source 100 as Rollenabspulvorrichtung 100 educated. In the case of a sheet-fed rotary printing press, the printing material source 100 designed as a sheet feeder. In the substrate source 100 becomes printing material 02 aligned, preferably with respect to at least one edge of the printing material 02 , In the Rollenabspulvorrichtung 100 a web-fed rotary press 01 becomes a web-shaped substrate 02 So a printing material web 02 For example, a paper web 02 or a textile web 02 or a slide 02 , For example, a plastic film 02 or a metal foil 02 from a substrate roll 101 unwound and preferably aligned with respect to their edges. Following is the printing material 02 and in particular the printing material web 02 by the at least one first printing unit 200 directed where the substrate 02 and in particular the printing material web 02 is provided by means of at least one ink at least on one side with a printed image.
  • After passing the at least one first printing unit 200 the substrate passes through 02 and in particular the printing material web 02 prefers the at least one first dryer 301 to dry the applied ink. Under printing ink is to be understood in the foregoing and hereinafter generally a coating agent, in particular a paint. Preferably, the at least one first dryer 301 Part of a dryer unit 300 , After passing the at least one first dryer 301 and preferably the at least one second printing unit 400 and / or the at least one second dryer 331 becomes the substrate 02 and in particular the printing material web 02 Preferably, the at least one post-processing device 500 fed and further processed there. The at least one post-processing device 500 is for example as at least one folding device 500 and / or as a take-up device 500 educated. In the at least one folding device 500 is the preferred two-sided printed substrate 02 further processed to individual printed products. In particular, this means that along a transport path of the printing material 02 and in particular the printing material web 02 through the rotary printing machine 01 after the at least one first printing unit 200 preferably at least the first dryer 301 and then at least the second printing unit 400 and then the at least one second dryer 331 is arranged. This ensures that a double-sided printing of the substrate 02 and in particular the printing material web 02 in high quality.
  • The following is a web-fed rotary press 01 described in more detail. However, the same details can be applied to other printing presses as well 01 , For example, sheet-fed rotary presses, provided that they do not conflict. Bedruckstoffrollen 101 , which are preferred in the Rollenabspulvorrichtung 100 come used, preferably each have a sleeve on which the web-shaped substrate 02 for use in the rotary web press 01 is wound up. The printing material web 02 preferably has a width of 700 mm to 900 mm, but may also have an arbitrarily smaller or preferably larger width. In the Rollenabspulvorrichtung 100 is at least one substrate roll 101 rotatably arranged. In a preferred embodiment, the Rollenabspulvorrichtung 100 for receiving a substrate roll 101 designed suitable, so has only one storage position for a Bedruckstoffrolle 101 on. In another embodiment, the Rollenabspulvorrichtung 100 as a reel changer 100 formed and has storage positions for at least two Bedruckstoffrollen 101 and preferably allows a flying role change, so connecting a first substrate web 02 a currently processed substrate roll 101 with a second substrate web 02 a substrate to be processed below 101 while both the currently processed substrate roll 101 , as well as the substrate to be processed below 101 rotate.
  • The Rollenabspulvorrichtung 100 preferably has at least one roll holding device per storage position 103 on, for example, as a clamping device 103 and / or as a clamping device 103 is trained. Preferably, the at least one roller holding device 103 at least a first motor-driven rotary body 103 The at least one roll holding device 103 serves a rotatable attachment of at least one Bedruckstoffrolle 101 , The at least one roll holding device 103 is preferably with the sleeve of Bedruckstoffrolle 101 in contact.
  • Independent of an embodiment of the Rollenabspulvorrichtung 100 has the Rollenabspulvorrichtung 100 still prefers the over stock 129 the at least one common carrier 108 or supporting frame 108 carrying frame 112 on. Preferably, the Rollenabspulvorrichtung 100 along a transport path of a printing material web 02 after the roll holding device 103 one, at a dancer lever 121 arranged dancer roller 113 and / or a web edge aligner 114 and / or a, one of a draw roller 118 and a train press 117 formed intake nip 119 and a pull-in roller 141 trained measuring roller 141 having a feed mechanism 139 on. This draw roller 118 preferably has its own, as Zugantriebsmotor 146 trained drive motor 146 which is preferably connected to a machine control. The draw roller 118 preferably provides at least a second motor-driven rotary body 118 By means of, preferably on a dancer lever 121 deflectable arranged dancer roller 113 is a web tension adjustable and durable within limits and / or the web tension is preferably kept within limits. By means of the dancer roller 113 Unevenness of the web tension is preferably compensated, for example in the case of non-circular printing material rolls 101 , Optionally, the Rollenabspulvorrichtung 100 an adhesive and cutting device, flying by means of a roll change, ie without stopping the printing material web 02 can go on.
  • The web edge organizer 114 below is preferably a feed-in 139 arranged. As part of the intake system 139 is preferably at least one draw roller 118 arranged, with the preferred a Zugpresseur 117 is arranged cooperatively. The draw roller 118 and the train press 117 preferably form a nip 119 , in which the printing material web 02 is clamped or clamped and by the printing material web 02 is preferably encouraged. The draw roller 118 but may for example be designed as a suction roll. The intake nip 119 serves to regulate a web tension and / or a transport of the printing material 02 , The Zugpresseur 117 preferably has a lateral surface which consists of an elastic material, for example an elastomer. Preferably, the at least one as a feed measuring roll 141 trained measuring roller 141 arranged, by means of which a web tension is measurable. Results of these measurements are preferably used as a basis for controlling the web tension. The at least one measuring roller 141 is in the transport direction of the printing material web 02 preferably in front of the entry nip 119 arranged. In one embodiment, the Zugpresseur 117 at least one driver on, in the case of, as a textile web 02 formed substrate 02 a transport of the printing material 02 improved. For example, to better use of space is the catchment 139 preferably above the support arms 107 the Rollenabspulvorrichtung 100 and more preferably at the same height as the web edge aligner 114 arranged.
  • A first printing unit 200 is the Rollenabspulvorrichtung 100 with respect to the transport path of the printing material web 02 downstream. The first printing unit 200 has at least a first central pressure cylinder 201 or shortly central cylinder 201 on. If below from a central cylinder 201 the speech is, so is always a pressure cylinder 201 meant. The at least one first central cylinder 201 preferably provides at least a third motor-driven rotary body 201 dar. The printing substrate 02 wraps around the first central cylinder in printing operation 201 at least partially. 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 circumferential direction of a cylinder jacket surface of the first central cylinder 201 along which the substrate 02 and in particular the printing material web 02 with the first central cylinder 201 in contact. Accordingly, at least 50% and more preferably at least 75% of the cylinder jacket surface of the first central cylinder are preferably seen in the circumferential direction during the printing operation 201 with the printing material web 02 in contact. This means that one, as the contact surface between the at least one first central cylinder 201 and preferably as a printing substrate 02 formed substrate 02 provided partial surface of a cylindrical surface of the at least one first central cylinder 201 the wrap around the at least one first central cylinder 201 which is preferably at least 180 ° and more preferably at least 270 °.
  • Along the transport path of the printing material web 02 in front of the first central cylinder 201 the first printing unit 200 is preferably at least a first printing material cleaning device 202 or web cleaning device 202 on the substrate web 02 acting and / or on the transport of the printing material web 02 arranged aligned. The first web cleaning device 202 is preferred as the first dedusting device 202 educated. The first web cleaning device 202 preferably has at least one brush and / or at least one suction device and / or a device for electrostatic discharge of the printing material web 02 adhering particles. The first web cleaning device 202 is at least a first side and preferably both sides of the substrate web 02 assigned and in particular at least on this first side of the printing substrate 02 and preferably on both sides of the printing material web 02 designed to be effective and / or effective. Preferably, along the transport path of the printing material web 02 between the, at least two alignment rollers 116 having Bahnkantenausrichter 114 and the at least one first central cylinder 201 that of the draw roller 118 and the Zugpresseur 117 formed entry nip 119 arranged. The at least one first web cleaning device 202 In a preferred embodiment, it is harvested along the transport path of the printing material web 02 after the entry nip 119 and in front of the first central cylinder 201 on the substrate web 02 acting and / or on the transport of the printing material web 02 arranged aligned.
  • One as the first guide roller 203 trained roller 203 the first printing unit 200 is with respect to its axis of rotation parallel to the first central cylinder 201 arranged. This first guide roller 203 is preferred from the first central cylinder 201 spaced apart. In particular, there is a first gap 204 between the first guide roller 203 and the first central cylinder 201 , which is greater than a thickness of the substrate web 02 , Under the thickness of the substrate web 02 is a smallest dimension of the substrate web 02 to understand. The printing material web 02 preferably wraps around a part of the first guide roller 203 and is deflected by this so that the transport path of the printing substrate 02 in the first space 204 both tangential to the first guide roller 203 as well as tangent to the first central cylinder 201 runs. A lateral surface of the deflection roller 203 consists preferably of a comparatively inelastic material, more preferably a metal, even more preferably steel or aluminum.
  • At least one is preferred as the first impression roller 206 trained first cylinder 206 in the first printing unit 200 arranged. The first impression roller 206 preferably has a lateral surface which consists of an elastic material, for example an elastomer. The first impression roller 206 is preferably by means of a Anstellantriebs to the first central cylinder 201 adjustable and / or arranged abstellbar, further preferably in a linear direction of movement, even more preferably radially relative to a rotation axis 207 of the first central cylinder 201 , In one to the first central cylinder 201 Employed state forms the first impression roller 206 together with the first central cylinder 201 a first impression gap 209 , The printing material web 02 goes through the first impression gap in printing operation 209 , Through the first guide roller 203 and / or preferably by the first impression roller 206 becomes the printing material web 02 flat and preferably in a clear and known position to the first central cylinder 201 created. Preferably, apart from at most the first impression roller 206 and / or optionally further impression rollers and / or optionally at least one adhesive application device 218 no further rotation body, in particular no further roller and no further cylinder with the at least one first central cylinder 201 in contact.
  • The first central cylinder 201 has its own, the first central cylinder 201 associated first drive motor 208 on, preferably as an electric motor 208 is formed and further preferred as a direct drive 208 of the first central cylinder 201 is trained. The first drive motor 208 of the first central cylinder 201 is preferred as a synchronous motor 208 educated. Nevertheless, the use of an asynchronous motor is conceivable. The first drive motor 208 of the first central cylinder 201 preferably has at least one permanent magnet, which is more preferably part of a rotor of the first drive motor 208 of the first central cylinder 201 is. On 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 arranged, which is a rotational angle 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 designed to transmit. The first rotation angle sensor is designed, for example, as a rotary encoder or absolute value encoder. With such a rotation angle sensor is a rotational position of the first drive motor 208 and / or preferably a rotational position of the first central cylinder 201 preferably by means of the higher-level machine control absolutely determinable. The first drive motor 208 of the first central cylinder 201 is preferably at a first, on the axis of rotation 207 of the first central cylinder 201 related axial end of the first central cylinder 201 arranged, while the rotation angle sensor preferably at a second, on the axis of rotation 207 of the first central cylinder 201 related axial end of the first central cylinder 201 is arranged. The rotation angle sensor preferably has a particularly high resolution, for example a resolution of at least 3,000 (three thousand) and preferably at least 10,000 (ten thousand) and more preferably at least 100,000 (one hundred thousand) increments per full angle (360 °). The rotation angle sensor preferably has a high temporal sampling frequency.
  • Within the first printing unit 200 is at least a first printing unit 211 arranged. The at least one first printing unit 211 is preferred in the direction of rotation of the first central cylinder 201 and thus along the transport path of the printing material web 02 after the first impression 206 on the at least one first central cylinder 201 arranged aligned. The at least one first printing unit 211 is as a first inkjet printing unit 211 trained and will also be the first ink-jet printing unit 211 called. The first printing unit 211 has at least one nozzle bar 213 and preferably a plurality of nozzle bars 213 on. The at least one first printing unit 211 and thus the at least one first printing unit 200 has at least a first printhead 212 on that as an inkjet printhead 212 is trained. Preferably, the at least one nozzle bar 213 at least one and preferably several printheads 212 on. Every printhead 212 preferably has a plurality of nozzles from which ink droplets are ejected and / or ejected. A nozzle bar 213 is a component that preferably over at least 80% and more preferably at least 100% of a width of the printing substrate 02 and / or an axial length of the bale of the at least one first Central cylinder 201 extends and as a carrier of the at least one print head 212 serves. There is a single or several nozzle bars 213 per printing unit 211 arranged. Each nozzle is a clearly defined target area in the direction A of the width of the printing material web 02 and thus to the direction A of the axis of rotation 207 the at least one first central cylinder 201 related assigned. Each target area of a nozzle is in particular related to the circumferential direction of the at least one first central cylinder 201 clearly defined.
  • The at least one first nozzle bar 213 preferably extends in the axial direction A, ie in the direction A of the width of the printing material web 02 over the entire width of the printing material web 02 , The at least one nozzle bar 213 has at least one row of nozzles. The at least one row of nozzles, viewed in the axial direction A, preferably extends over the entire width of the printing material web 02 and / or a bale of the at least one first central cylinder 201 at regular intervals nozzle openings. In one embodiment, this is a single continuous printhead 212 arranged, extending in the axial direction A over the entire width of the printing substrate 02 and / or the entire width of the bale of the at least one first central cylinder 201 extends. In this case, the at least one row of nozzles is at least one linear, over the entire width of the printing material web 02 formed in the axial direction A extending juxtaposition of individual nozzles. In another preferred embodiment, several print heads are juxtaposed in the axial direction A. 212 on the at least one nozzle bar 213 arranged. Since usually such individual printheads 212 are not provided with nozzles up to an edge of their housing, are preferably at least two and preferably exactly two rows of print heads extending in the axial direction A. 212 in the circumferential direction of the first central cylinder 201 arranged offset to one another, preferably so that in the axial direction A successive printheads 212 always alternately one of the at least two rows of printheads 212 always preferentially 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 , Each double row of printheads 212 preferably has between five and fifteen print heads 212 and more preferably seven printheads 212 on. The at least one row of nozzles is then not formed as a single linear juxtaposition of nozzles, but results as a sum of individual, in particular two, in the circumferential direction offset from each other arranged juxtaposition of nozzles.
  • Indicates a printhead 212 several nozzles, so form all target areas of the nozzles of this printhead 212 together a workspace of this printhead 212 , Workspaces of Printheads 212 a nozzle bar 213 and in particular a double row of printheads 212 As seen in the axial direction A to each other and / or overlap seen in the axial direction A. In this way, even when not in the axial direction A printhead 212 ensures that seen in the axial direction A at regular and preferably periodic distances target areas of nozzles of the at least one nozzle beam 213 and / or in particular each double row of printheads 212 lie. In any case, an entire working area of the at least one nozzle bar extends 213 preferably over at least 90% and more preferably 100% of the total width of the printing material web 02 and / or the entire width of the bale of the at least one first central cylinder 201 in the axial direction A. On one or both sides with respect to the axial direction A, a narrow region of the printing material web 02 and / or the bale of the first central cylinder 201 be present, which is not the working area of the nozzle bars 213 belongs. An entire workspace of a double row of printheads 212 corresponds in the direction A of the width of the printing substrate 02 seen the working area of the at least one nozzle bar 213 ,
  • Preferably, the at least one nozzle bar 213 in the circumferential direction with respect to the at least one first central cylinder 201 several rows of nozzles on. Preferably, each printhead 212 a plurality of nozzles arranged in a matrix of a plurality of rows in the axial direction A and a plurality of columns in the circumferential direction of the at least one first central cylinder 201 are arranged. Preferably, in the circumferential direction with respect to the at least one first central cylinder 201 several rows of printheads 212 , more preferably four double rows, and more preferably eight double rows of printheads 212 successively on the at least one first central cylinder 201 arranged aligned. Here are the printheads 212 Preferably aligned such that the nozzles of each printhead 212 essentially in the radial direction on the cylinder jacket surface of the at least one first central cylinder 201 point. Each double row of printheads 212 is preferably associated with a printing ink of a particular color, for example, each one of the colors black, cyan, yellow and magenta or a paint, for example a clearcoat. The corresponding inkjet printing unit 211 is preferred as a four-color printing unit 211 trained and allows a one-sided four-color printing of the printing substrate 02 , It is also possible to have fewer or more different colors with a printing unit 211 to print, for example additional spot colors. Preference is then correspondingly more or less printheads 212 and / or double rows of printheads 212 within this corresponding printing unit 211 arranged.
  • The at least one print head 212 works to produce drops of ink preferably according to the drop-on-demand method. In principle, there is also a use of printheads 212 conceivable, which work according to another method for the production of ink droplets, for example, the continuous-ink-jet method. In the drop-on-demand process, ink droplets are selectively generated as needed. Preferably, at least one piezo element is used per nozzle, which can reduce a volume filled with ink at high speed by a certain amount when a voltage is applied. This displaces ink which is ejected through a nozzle connected to the volume filled with ink and forms at least one ink droplet. By applying different voltages to the piezo element is on the travel of the piezoelectric element and thus the reduction of the volume and thus the size of the ink droplets influence. In this way, color gradations in the resulting print image can be realized without changing a number of drops contributing to the print image (amplitude modulation). It is also possible to use at least one heating element per nozzle, which generates a gas bubble in a volume filled with ink at high speed by evaporation of printing ink. The additional volume of the gas bubble displaces ink, which in turn is ejected through the corresponding nozzle and forms at least one ink droplet.
  • In the drop-on-demand process, a droplet deflection after ejection from the corresponding nozzle is not necessary, since it is possible to achieve a target position of the respective ink drop on the moving substrate web 02 with respect to the circumferential direction of the at least one first central cylinder 201 solely by an emission time of the respective ink drop and a rotational speed of the first central cylinder 201 set. By individually controlling each nozzle, ink drops from the at least one printhead are only at selected times and at selected locations 212 on the substrate web 02 transfer. This happens as a function of the rotational speed of the at least one first central cylinder 201 , a distance between the respective nozzle and the printing material web 02 and the location of the target area of the respective nozzle with respect to the circumferential angle. This results in a desired printed image, which is designed as a function of the control of all nozzles.
  • Preferably, the first printing unit 200 at least one storage container for each ink to be processed. This at least one storage container preferably has a capacity of 10 liters to 100 liters. Preferably, at least one and more preferably each of these reservoirs is connected via at least one line to at least one buffer memory. The at least one buffer memory preferably has a capacity of 1 liter to 10 liters. By arranged in the at least one buffer memory amount of ink, it is possible to replace one or more reservoirs, without interrupting a current printing operation. Preferably, at least one, and more preferably, each of these buffer memories is connected via at least one further line, designated as a feed line, to at least one intermediate store. The at least one buffer preferably has a capacity of 0.1 liter to 1 liter. The at least one buffer is connected to the at least one print head 212 connected. Preferred is each double row of printheads 212 each associated with a pair of latches. It is preferred between the at least one storage container and the at least one print head 212 and more preferably arranged between the at least one storage container and the at least one intermediate storage at least one treatment device, can be freed by the preferred corresponding ink from dirt and / or gas bubbles.
  • Preferably, the at least one buffer is located above the printhead cooperating with the respective buffer 212 arranged. A height difference between the at least one print head is preferred 212 and the respective at least one buffer for a plurality and more preferably for all printheads 212 same size. This ensures that one on the at least one printhead 212 pending hydrostatic pressure of the ink for each printhead 212 is the same size and thus the same working conditions for all printheads 212 to rule. At least the at least one supply line, which is the at least one intermediate store with the at least one print head, is preferred 212 connects, subjected to a negative pressure and / or acted upon. As a result, for example, an unwanted escape of ink from the at least one print head 212 prevented. Preferably, each printhead 212 also at least one derivative, through which preferably dried or soiled ink from the at least one print head 212 can be removed without being ejected through a nozzle intended for the pressure. The at least one derivative is preferably connected to at least one waste container.
  • Due to the orientation of the substrate web 02 by means of the web edge aligner 114 and optionally by the first impression roller 206 the first printing unit 200 and by the large wrap angle of the printing material web 02 around the at least one first central cylinder 201 and optionally by other devices, such as drivers, which are explained in more detail below, it is ensured that the printing material web 02 without slippage in a precisely defined position on the cylinder jacket surface of the at least one first central cylinder 201 is arranged and also remains until a selective detachment at the end of the range of the wrap angle. Through the contact of the printing material web 02 with the cylinder jacket surface of the at least one first central cylinder 201 In addition, swelling of the printing material web 02 at least in the transport direction of the printing material web 02 and at least for the duration of a contact of a respective area of the substrate web 02 with the cylinder jacket surface of the at least one first central cylinder 201 even after contact with drops of ink prevented or at least sufficiently reduced. This will ensure that ink drops from different printheads 211 on a uniformly defined printing substrate 02 be applied. An exact and constant position of the printing material web 02 relative to the at least one first central cylinder 201 is of great importance for a passport-friendly and / or register-compliant printed image.
  • The nozzles of the at least one printhead 212 are arranged such that a distance between the nozzles and on the cylinder jacket surface of the at least one first central cylinder 201 arranged printing material web 02 preferably between 0.5 mm and 5 mm and more preferably between 1 mm and 1.5 mm. The high angular resolution and / or the high sampling frequency of the rotation angle sensor enables a very accurate position determination of the printing material web 02 relative to the nozzles and their target areas. A drop flight time between the nozzles and the printing material web 02 is for example by a teach-in process and / or by the known distance between the nozzles and the printing material web 02 and a known drop speed known. From the angular position of the at least one first central cylinder 201 , the rotational speed of the at least one first central cylinder 201 and the drop flight time is determined an ideal time to eject a respective drop, so that a passer-sized and / or register-compliant imaging of the substrate web 02 is reached.
  • Preferably, at least one sensor designed as a first print image sensor is arranged, more preferably at one point along the transport path of the printing material web 02 after the first printing unit 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, a control is all in the circumferential direction of the at least one first central cylinder 201 one behind the other and / or acting printheads 212 and / or double rows of printheads 212 of the first printing unit 211 monitored and regulated. In a first embodiment of the at least one print image sensor, only a first print image sensor is arranged, whose sensor field covers the entire width of the transport path of the printing material web 02 includes. In a second embodiment of the at least one print image sensor, only a first print image sensor is arranged which is orthogonal in the direction A to the direction of the transport path of the printing material web 02 is designed to be movable. 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 transport path of the printing material web 02 include. Preferably, these areas in the direction A are orthogonal to the direction of the transport path of the printing material web 02 arranged offset from one another. Preferably, an entirety of the sensor fields of the plurality of print image sensors comprises a total width of the transport path of the printing material web 02 ,
  • A layer of pixels formed by drops of ink emerging from each first printhead 212 are compared with a layer of pixels formed by drops of ink, each from a second, in the circumferential direction of the at least one first central cylinder 201 after the first printhead 212 lying printhead 212 come. This is preferably done independently of whether these each first and second, in the circumferential direction of the at least one first central cylinder 201 one behind the other and / or acting printheads 212 process a same or a different printing ink. It will be a vote of the layers of different printheads 212 monitored printed images. For the same inks, register-based joining of partial images is monitored. For different inks, 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, must the substrate web 02 may be printed multiple times with the same ink until the desired result can be achieved. For this purpose, each ink is preferably at least two, in the circumferential direction of the first central cylinder 201 successive double rows of printheads 212 assigned. This is at a transport speed of the printing material web 02 of 2 m / s and a four-color print, a resolution of 600 dpi (600 pixels per inch) is reached. Smaller resolutions and / or fewer colors allow correspondingly higher transport speeds. In particular, instead of a four-color print, two-color printing may be performed, for example, each of the two colors each having half of the print heads 212 is assigned. Thus, for example, the printing speed can be doubled. A larger number of printheads 212 is another way to influence the achievable print resolution and / or transport speed and / or color selection. In particular, the print heads need to have a high enough data processing speed 212 Controlling control to be respected.
  • In a regular printing operation, all printheads are 212 fixedly arranged. This ensures a permanent passport-oriented and / or register-oriented alignment of all nozzles. There are different situations imaginable in which a movement of the printheads 212 necessary is. A first such situation is a flying roll change or generally a roll change with gluing process. This is a printing material web 02 by means of an adhesive strip with another printing material web 02 connected. This results in a connection point that covers the entire transport path of the printing material web 02 has to go through. This joint has a thickness, ie a smallest dimension, which is greater than a thickness of the printing material web 02 , In essence, the joint is as thick as two substrates 02 and the tape together. This can cause difficulties when the joint is the space between the nozzles of the printheads 212 and the cylinder jacket surface of the at least one first central cylinder 201 happens. The at least one nozzle bar 213 is therefore in a radial direction relative to the axis of rotation 207 the at least one first central cylinder 201 movable. In this way, the distance can be sufficiently increased, but must be subsequently reduced accordingly again. A second such situation results, for example, in a maintenance of at least one of the printheads 212 , The printheads 212 are preferably individually on the at least one nozzle bar 213 attached and individually from the at least one nozzle bar 213 solvable. This allows individual printheads 212 serviced and / or cleaned and / or replaced.
  • Are several mutually movable nozzle bars 213 arranged, so can at a return of at least one nozzle beam 213 in a printing position minimal malpositions of the nozzle bar 213 occur among each other. An alignment requirement can thus occur, in particular of all printheads 212 a nozzle bar 213 to printheads 212 other nozzle bars 213 , Will be a new and / or reassignable printhead 212 on the at least one nozzle bar 213 attached to the already at least one other printhead 212 is fixed, it does not necessarily result but at most coincidentally an exact matching orientation of this new and / or reordering printhead 212 to the at least one already attached printhead 212 in the 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 other printheads 212 the same nozzle bar 213 and / or other nozzle bars 213 ,
  • At least one sensor detects a position of the target area of at least one new and / or re-arranged printhead 212 relative to a location of the target area of at least one pre-attached printhead 212 , This is preferably done on the basis of a comparison of layers of the respective printheads 212 generated pixels on the substrate web 02 , The sensor used for this is preferably the at least one first printed image sensor already described. 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 circumferential direction with respect to the at least one first central cylinder 201 can be controlled by controlling the nozzles of this printhead 212 compensate, preferably analogous to the already described adaptation of printheads 212 different double rows of printheads 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 compensated by means of at least one adjustment mechanism. Preferably, several print heads 212 each have their own adjustment mechanism, more preferably, all print heads 212 each have their own adjustment mechanism. It is conceivable a printhead 212 as a reference, after all other printheads 212 be aligned. This one for reference inserted printhead 212 then does not need its own adjustment mechanism. Each such adjustment mechanism has at least one linear drive, which is preferably designed as an electric motor and more preferably as a stepper motor. The linear drive has, for example, a spindle drive and / or a rack and a pinion. In another embodiment, the linear drive has an eccentric and a groove interacting therewith. Every printhead 212 is arranged by means of its linear drive preferably at least parallel to the axial direction A movable.
  • After installing at least one printhead 212 Preferably, a test pressure is performed, wherein the new and / or reordering printhead 212 and at least one printhead serving as a reference 212 Ink droplets on the substrate 02 transfer. The test printout is preferably detected automatically by means of a sensor, for example the first print image sensor. At a detected by the test print deviation of an actual position of the at least one new and / or re-arranged printhead 212 Preferably, an adjustment of the position of this printhead is automated 212 in the axial direction A by means of the adjustment mechanism and / or an adjustment of the control of the nozzles of this printhead 212 with respect to a drop ejection timing. The test print may be in the form of, for example, a part or the entire axial width of the printing material 02 be formed extending test strip. Such test print and in particular test strips are preferably also in a running printing operation at least temporarily on the substrate web 02 printed, for example, in a region between two printed images, which represents a border area in the production of finished printed products, which is cut anyway, in particular regardless of whether a test print is placed on it or not. The at least one sensor then registers the printed image of the at least one test printout. In particular, a plurality of such test printouts can be detected successively in time with a sensor which is moved in each case to different axial positions in order to examine the position of the pixels there.
  • The at least one nozzle bar 213 is preferably arranged to be movable in the axial direction A, more preferably so far that no nozzle of the nozzle beam 213 and / or no workspace of a printhead 211 of the nozzle bar 213 has a same position with respect to the axial direction A, as any part of the bale of the at least one first central cylinder 201 , For this purpose, at least one linear guide is preferably arranged. One, the at least one nozzle bar 213 carrying carriage is arranged to be movable along the at least one linear guide. For maintenance of the printing unit 211 is the at least one nozzle bar 213 preferably initially in a radial to the axis of rotation 207 the at least one first central cylinder 201 oriented direction of the at least one first central cylinder 201 turned off and then moved in the axial direction A. Preferably, a protective cover is arranged, which in a position relative to the at least one nozzle bar 213 is movable, in which the protective cover all nozzles of the at least one, of the at least one first central cylinder 201 parked jet bar 213 is arranged covering. In this way, drying of the nozzles is prevented. Preferably, the nozzles of the at least one nozzle bar are located in this position 213 as well as the protective cover with respect to the axial direction A in the region of the bale of the at least one first central cylinder 201 , More preferably, the limit at least one nozzle bar 213 and the protective cover in this position, a hermetically sealed volume within which the nozzle openings are arranged.
  • Preferably, at least one nozzle cleaning device is arranged, which has a number of washing nozzles and / or brushes and / or pullers. This at least one nozzle cleaning device is preferably movable in the axial direction A and / or from below to the nozzles of the at least one nozzle beam 213 movable up. Additionally or alternatively, the at least one nozzle bar 213 from above to the nozzle cleaning device zoom. Preferably, the at least one nozzle cleaning device is connected to the protective cover and / or movable together with the protective cover, for example in the axial direction A. Preferably, the at least one nozzle cleaning device but also relative to the protective cover movable, for example, the at least one nozzle cleaning device from the completed To remove volume. The protective cover preferably serves at the same time as a collecting container for leaked from the washing nozzles and / or from the nozzles dripping cleaning liquid and / or dirt and / or ink. The at least one nozzle bar 213 is completely independent of such components of the printing press 01 movable, which is the printing material web 02 are arranged touching. Thus, such cleaning and / or maintenance can be carried out without the printing material web 02 to influence and in particular without the printing substrate 02 from the printing press 01 to have to remove.
  • Preferably, the at least one printhead can be used 212 and / or clean its nozzles in a first and / or a second way. In the first type of cleaning, ink is preferred with shutdown of the negative pressure and / or under increased pressure through the nozzles of the at least one printhead 212 promoted, preferably in such a large amount that impurities and / or dried ink is entrained and is preferably introduced into the serving as a collecting container protective cover. This is preferably with a separate, of the at least one nozzle bar 213 different closure closable and separately cleanable, in particular flushable. The first type of cleaning is the preferred type of cleaning. For example, with heavier soils, the second type of cleaning is performed. In each case, the entire at least one printhead 212 and his leads and preferably also the respective buffer of ink completely freed and flushed with a cleaning liquid. This cleaning liquid is again preferably collected by means of the protective cover serving as a collecting container. This approach is accompanied by a greater loss of ink, but offers the advantage of a particularly intensive cleaning.
  • After the printing material web 02 the at least one first printing unit 200 has happened, the printing substrate 02 transported further along their transport path and preferably the at least one first dryer 301 the at least one dryer unit 300 fed. The first at least a first dryer 301 is accordingly with respect to the transport path of the printing material web 02 after the first printing unit 211 and in particular after the at least one first printing unit 200 arranged. Preferably, the first, from the at least one first printing unit 200 printed side of the substrate web 02 between a last contact point of the printing material web 02 with the at least one first central cylinder 201 the at least one first printing unit 200 and an area of action of the at least one first dryer 301 with no component of the web-fed rotary press 01 in contact. Preferably, the second, from the first printing unit 200 not printed, the at least one first central cylinder 201 the at least one first printing unit 200 touching side of the substrate web 02 between the last contact point of the printing material web 02 with the first central cylinder 201 the at least one first printing unit 200 and the area of action of the at least one first dryer 301 with at least one guide roller 214 the at least one first printing unit 200 and / or with at least one deflection roller 312 the at least one first dryer 301 in contact. At least one is preferred as a measuring roller 214 trained deflection roller 214 the first printing unit 200 arranged the printing substrate 02 after this in a direction with a greater vertical, preferably downwardly oriented component than optionally present horizontal component of the at least one first central cylinder 201 has deflected, deflected in a direction that has a larger horizontal component than any existing vertical component. It is only the through the first printing unit 200 not printed second side of the substrate web 02 with this at least one guide roller 214 the first printing unit 200 in contact. At least one deflection roller is preferred 312 the at least one first dryer 301 arranged the printing substrate 02 from this direction or another direction with a larger horizontal component than any vertical component present in a direction with a larger vertical, preferably upwardly oriented component as optionally present horizontal component deflects. It is only the through the first printing unit 200 not printed second side of the substrate web 02 with the at least one guide roller 312 the at least one first dryer 301 in contact.
  • The at least one first dryer 301 is preferred as an infrared radiation dryer 301 educated. The at least one first dryer 301 preferably has at least one and preferably several, more preferably at least six and even more preferably at least ten in the transport direction of the printing material web 02 Radiation sources arranged one behind the other 302 which are preferred as infrared radiation sources 302 are formed. A radiation source 302 , preferably infrared radiation source 302 is a device by means of the targeted electrical energy is converted into radiation, preferably infrared radiation and / or is convertible and on the substrate web 02 is directed and / or judged. The at least one radiation source 302 preferably has a defined area of action. In particular, the exposure region of each radiation source 302 the area that contains all the points that are rectilinear directly or through reflectors with the radiation source 302 can be connected. The area of action of the at least one first dryer 301 consists of the exposure areas of all radiation sources 302 the at least one first dryer 301 together. The area of action of the at least one first dryer 301 preferably has at least one radiation source 302 to one of the at least one radiation source 302 nearest part of the transport path of the printing substrate 02 ,
  • The at least one radiation source 302 has a length and a width and a height. The length of the radiation source 302 is at least five times as large as the width and height of the radiation source 302 , Preferably, the length of the at least one radiation source extends 302 in the axial direction A parallel to the axis of rotation 207 the at least one first central cylinder 201 and thus in the direction A of the width of the printing material web 02 , That means that at least a first dryer 301 at least one radiation source 302 has, which is in a horizontal, orthogonal to the transport path of the printing substrate 02 through the at least one first dryer 301 oriented direction A extends. The arrangement of several such aligned radiation sources 302 in the transport direction of the printing material web 02 one after the other allows an adaptation of the total to the printing material web 02 emitted radiation power to one on the substrate web 02 applied amount of ink and / or color density.
  • The at least one radiation source 302 preferably has at least one and more preferably two tubes whose diameter is preferably between 10 mm and 50 mm. The at least one tube preferably consists of material which is at least partially permeable to radiation in the infrared range, more preferably of a quartz glass. Arranged inside each such tube is at least one incandescent body, preferably an incandescent filament or an annealing strip, which preferably consists of tungsten and / or a tungsten alloy and / or carbon (carbon). The filament may for example consist of tungsten carbide. A reflector layer on one of the printing material web is preferred 02 applied away from the side of the tubes. The incandescent bodies act as heating resistors, which cause heating and heat emission during current flow. Every radiation source 302 has a housing 316 on, which preferably has a plurality of vents and preferably not between the incandescent bodies and the printing material web 02 is arranged. Preferably, all vents open into a common air discharge line 318 ,
  • In an embodiment, which is preferably up to an orientation of the at least one radiation source 302 identical to that described above and below, is the length of the at least one radiation source 302 parallel to the transport direction of the printing material web 02 aligned. Preference is then multiple radiation sources 302 in the direction A of the width of the printing material web 02 arranged side by side. That means that the at least one first dryer 301 at least one radiation source 302 which extends in one direction, the at least one parallel to the transport path of the printing material 02 through the at least one first dryer 301 oriented component. In this way it is possible to print substrate webs 02 optimized widths to dry without unnecessarily spending a lot of energy and / or overheating of the at least one first dryer 301 to risk. An adaptation of the dryer power can be achieved via a preferably individual control of a radiation power of the at least one radiation source 302 respectively.
  • Preferably, the plurality of radiation sources 302 but arranged with respect to their length parallel to each other. Preferably, the plurality of radiation sources 302 juxtaposed in a direction orthogonal to the length of the radiation sources 302 is aligned and / or along the transport path of the printing substrate 02 extends. Thus, preferably several radiation sources extend 302 each orthogonal to the transport direction of the printing material web 02 and are in the transport direction of the printing material web 02 seen consecutively. By the at least one radiation source 302 emitted radiation is moisture from the substrate web 02 and / or removed from the ink disposed thereon and the ambient air in an interior of the at least one first dryer 301 added. The transport path of the printing material web 02 passes through this interior of the at least one first dryer 301 , In order to achieve a permanently high drying performance, is for a temperature control of components of the at least one first dryer 301 and / or a venting of the interior of the at least one first dryer 301 taken care of. For this purpose, at least one tempering device is preferably in the region of the at least one radiation source 302 arranged. In a preferred embodiment, the temperature control device is designed as a ventilation device. The ventilation device preferably also serves to remove moisture from the at least one first dryer 301 ,
  • The ventilation device has at least one air supply line 317 , at least one attached ventilation opening 313 , an air discharge line 318 and at least one vent connected thereto. The at least one ventilation opening 313 is in one in the interior of the at least one dryer 301 directed direction flows through the air. The at least one first dryer 301 is thus in addition to his training as a radiation dryer 301 also as a flow dryer 301 educated. Alternatively or additionally, the at least one first dryer 301 as a UV radiation dryer 301 and / or as a pure flow dryer 301 , for example, hot air dryer 301 educated. At least one preferably slot-shaped ventilation opening is preferred 313 arranged. More preferably, at least between two radiation sources 302 and even more preferably between every two radiation sources 302 at least one, preferably slot-shaped ventilation opening 313 arranged. Preferably, in each case, the housing 316 at least one and preferably each radiation source 302 at least one vent on, more preferably a plurality of vents.
  • In one embodiment, such a tempering device has at least one fluid-tempered, preferably liquid-tempered component, which is preferably at a distance of at most 50 cm, more preferably at most 15 cm, from the at least one radiation source 302 is arranged. For example, such a fluid-temperature-controlled component is in the area of action of the at least one first dryer 301 arranged. Such a fluid-tempered component is for example a Bedruckstoffleitelement, for example, a Bedruckstoffleitblech having at least one, with tempering fluid and preferably temperature-controlled liquid and / or flow-through line and / or is connected to such. Alternatively or additionally, in one embodiment, at least a part of the housing 316 at least one and preferably each radiation source 302 at least one with tempering fluid and preferably tempering liquid and / or flowed through and / or is connected to such a line. As tempering fluid, for example, water is used.
  • Through the at least one ventilation opening 313 air is introduced into the interior of the at least one first dryer 301 initiated. In the first dryer 301 There is preferably an overpressure. Inside the first dryer 301 becomes from the printing material web by the infrared radiation 02 removed to remove water and / or solvent of the printing inks and absorbed by the introduced air. This air is then passed through the at least one vent opening from the at least one first dryer 301 dissipated. By a discharge of this air, which has absorbed the excess water and / or solvent, on the one hand, a saturation in the first dryer 301 arranged air with water and / or solvent avoided and on the other hand additional heat energy from the inside of the dryer 301 removed. This increases the effectiveness of the first dryer 301 and a lifetime of the radiation sources 302 ,
  • Preferably, the at least one ventilation opening 313 the at least one air supply line 317 upstream and is the at least one vent the at least one air discharge line 318 downstream. At least one conveying device, for example a pump, is preferred to the at least one air supply line 317 and more preferably at least indirectly also connected to the at least one air discharge line. Preferably, at least one controllable and more preferably controllable gas valve is arranged. This at least one gas valve is preferably adjustable by hand and / or coupled to a drive and / or motor-driven and preferably designed as a branch with at least one flap. A first line connected to an input of the at least one gas valve is preferably the at least one air discharge line 318 , A second line connected to an outlet of the at least one gas valve preferably leads, for example, to a disposal device and / or reprocessing device. A third line connected to an outlet of the at least one gas valve preferably leads to the at least one conveying device. At least one further line, for example a fresh air line, also leads to the at least one conveying device.
  • By means of the at least one gas valve is a proportion of the at least one first dryer 301 adjustable air, which, preferably by means of at least one conveyor, the at least one first dryer 301 is fed again. For this purpose, the at least one gas valve is preferably adjusted so that a preferably from 0% to 100% adjustable portion of the first flowing through the at least one gas valve line flowing air into the third connected to the at least one gas valve line and thus on the at least one conveyor and the at least one air supply line 317 back in the at least one first dryer 301 is transported. The remaining discharged air is supplied to the second line connected to the at least one gas valve and transported away. The at least one gas valve thus determines one of the air supply line 317 supplied proportion and a discharged as exhaust air portion of the air discharge line 318 flowing gas stream. By this removal creates a negative pressure, which is preferably automatically compensated by the fact that the fresh air via further air preferably first in the at least one conveyor and in the at least one first dryer 301 is transported. Preferably, the negative pressure itself ensures a suction of a necessary volume of air through the fresh air line. In this way, an effectiveness of the at least one first dryer 301 improved, since not completely saturated exhaust air is reused and thus heat energy can be saved, because the warm air is re-introduced. On the other hand, necessary treatment measures reduce the volume of air to be cleaned.
  • The at least one ventilation opening 313 and / or the at least one air supply line 317 and / or the at least one vent opening and / or the at least one air discharge line 318 and / or the at least one conveying device and / or the at least one gas valve and / or the at least one second line connected to the at least one gas valve and / or the at least one disposal device and / or reprocessing device and / or the at least one third with the at least one Gas valve connected line and / or fresh air line are preferred Components of a ventilation device of the at least one first dryer 301 , In particular, this means that preferably the at least one first dryer 301 the at least one ventilation device and that the at least one ventilation device, the at least one of the at least one first dryer 301 leading air supply line 317 and the at least one air discharge line leading away from the at least one first dryer 318 and which has at least one, preferably drivable and / or driven, for example, driven by an electric drive conveyor and that the at least one air discharge line 318 via the at least one conveying device with the at least one air supply line 317 coupled and / or coupled. One to the at least one first dryer 301 leading air supply line 317 is in particular a line 317 to understand their interior with an interior of the at least one first dryer 301 is connected and the interior thereof in an operation of the at least one first dryer 301 from a gas towards the interior of the at least one dryer 301 to be flowed through. Below an air discharge line leading away from the at least one first dryer 318 is in particular a line 318 to understand their interior with the interior of the at least one first dryer 301 is connected and the interior thereof in an operation of the at least one first dryer 301 from a gas in the direction of the interior of the at least one dryer 301 is flowed through.
  • Preferably, the transport path of the printing material web 02 through the at least one first dryer 301 and in particular by the area of action of the at least one first dryer 301 a larger vertical component than optional horizontal component. More preferably, the transport path of the printing substrate runs 02 through the at least one first dryer 301 essentially in a vertical upward direction. This ensures that in the case of a web break no part of the substrate web 02 from above onto a radiation source 302 falls and / or on a radiation source 302 to come to rest. In this way, an inflammation of the printing material 02 at the hot radiation sources 302 prevented. At least a first support roller is preferred 319 along the transport path in the interior of the at least one first dryer 301 arranged, more preferably such that the at least one first support roller 319 through the printing material web 02 against the radiation sources 302 is shielded. The at least one first support roller 319 prevents uncontrolled fluttering of the substrate web 02 otherwise through the out of the at least one ventilation opening 313 outflowing air could occur. An angle of wrap of the substrate web 02 around the at least one first support roller 319 is preferably between 1 ° and 45 °, more preferably between 1 ° and 25 °.
  • In the transport direction of the printing material web 02 after the area of action of the at least one radiation source 302 the at least one first dryer 301 is preferably at least a first cooling device 303 arranged. The at least one first cooling device 303 has at least one first cooling roller 304 and preferably a first, to the at least one first cooling roll 304 adjustable and / or employed chill roller press 306 and preferably at least one, to the at least one first cooling roll 304 adjustable and / or employed connecting roller 307 ; 308 on. The first chill roller press 306 preferably has a lateral surface which consists of an elastic material, for example an elastomer. One of the at least one first cooling roller 304 associated first, as the first chill roll drive motor 311 trained drive motor 311 and the first chill roll press 306 are preferably part of a web tension control, that is, the web tension is arranged regulating and preferably for this purpose at least partially and / or temporarily connected to the higher-level machine control. The at least one first cooling roller 304 preferably provides at least a fourth motor-driven rotary body 304 dar. The printing substrate 02 wraps around after leaving the Einwirkbereichs the first dryer 301 first, a first connecting roller 307 and preferably passes through a nip between the first connecting roller 307 and the at least one first cooling roll 304 , The printing material web 02 The at least one first cooling roll wraps around in its further course 304 with a wrap angle of preferably at least 180 ° and more preferably at least 270 °. This means that one, as the contact surface between the at least one first cooling roller 304 and the printing material web 02 provided partial surface of a lateral surface of the at least one first cooling roller 304 a wrap around the at least one first chill roll 304 which is preferably at least 180 ° and more preferably at least 270 °. This leads to a particularly effective cooling of the printing substrate 02 and thus also allows high dryer performance.
  • The first chill roller press 306 forms with the at least one first cooling roll 304 a cooling nip 309 in which the printing material web 02 is arranged and / or the printing material web 02 passes. This is the substrate web 02 from the chill roll press 306 to the at least one first cooling roller 304 pressed. The printing material web 02 wraps around in its further course preferably a second connecting roller 308 the at least one first cooling device 303 , The at least one first cooling roller 304 the at least one first cooling device 303 is preferred as a cooling roller through which a coolant flows 304 educated. This means that at least part of a bale of the at least one first cooling roll 304 flows through the coolant and / or is designed to flow through. The coolant is preferably a coolant, for example water. In a preferred embodiment, a fluid circuit with both the at least one first cooling device 303 and optionally existing second cooling device 333 , as well as with the tempering of the at least one radiation source 302 connected. The first chill roll 304 preferably has its own first chill roll drive motor 311 on.
  • Along the transport path of the printing material web 02 after the at least one first cooling device 303 is at least a second printing unit 400 arranged. Preferably, along the transport path of the printing material web 02 preferably immediately before the at least one second printing unit 400 and preferably after the at least one first dryer 301 and in particular after the at least one first printing unit 200 arranged at least a second Bahnkantenausrichter, which is preferably formed manually or driven controllable and / or adjustable. The at least one second printing unit 400 is analogous to the first printing unit 200 built up. Preferably, the at least one second printing unit 400 with respect to the components described substantially and further preferably completely symmetrical to the at least one first printing unit 200 built up. A corresponding plane of symmetry has a horizontal surface normal lying orthogonal to the axial direction A. In particular, the second printing unit 400 a second central pressure cylinder 401 or shortly central cylinder 401 on, in the printing operation of the printing substrate 02 is wrapped, also with a wrap angle of preferably at least 180 ° and more preferably at least 270 °. Accordingly, at least 50% and more preferably at least 75% of a cylinder jacket surface of the second central cylinder are preferably seen in the circumferential direction during the printing operation 401 with the printing material web 02 in contact.
  • The second central cylinder 401 preferably provides a fifth motor driven rotary body 401 dar. The second central cylinder 401 the second printing unit 400 has a direction of rotation that is a direction of rotation of the at least one first central cylinder 201 is opposite. Along the transport path of the printing material web 02 in front of the central cylinder 401 the second printing unit 400 is preferably a second printing material cleaning device 402 or web cleaning device 402 on the substrate web 02 acting arranged. The second printing material cleaning device 402 is preferred as a second dedusting device 402 educated. The second printing material cleaning device 402 preferably has at least one brush and / or at least one suction device and / or a device for electrostatic discharge of the printing material web 02 adhering particles. The second printing material cleaning device 402 is at least a second side of the substrate web 02 assigned, in particular at least on this second side of the printing substrate 02 designed to be effective and / or effective. If the first printing material cleaning device 202 on both sides of the substrate 02 is designed to act and / or effective, the second Bedruckstoffreinigungsvorrichtung 402 omitted.
  • A second deflection roller 403 trained roller 403 the second printing unit 400 is parallel to the second central cylinder 401 and from this through a second gap 404 spaced apart. The transport path of the printing material web 02 by the at least one second printing unit 400 runs analogously to the transport path through the at least one first printing unit 200 , In particular, the printing material web wraps around 02 preferably a part of the second guide roller 403 and is deflected by this so that the transport path of the printing substrate 02 in the second space 404 both tangential to the second guide roller 403 as well as tangent to the second central cylinder 401 runs. At least one is preferred as the second impression roller 406 trained cylinder 406 in the second printing unit 400 arranged. The second impression roller 406 preferably has a lateral surface which consists of an elastic material, for example an elastomer. The second impression roller 406 is preferably analogous to the first impression roller 206 constructed and arranged, in particular with respect to its mobility and a second impression gap 409 , The second central cylinder 401 is preferably analogous to the first central cylinder 201 arranged and constructed, in particular with respect to a second drive motor 408 of the second central cylinder 401 and a corresponding second rotation angle sensor that detects a rotation angle position of the second drive motor 408 and / or the second central cylinder 401 itself measuring and / or measurable and sending to the higher-level machine control and / or is designed to transmit. Through the second guide roller 403 and / or preferably by the second impression roller 406 becomes the printing material web 02 flat and preferably in a clear and known position to the second central cylinder 401 created. In particular, the second drive motor 408 preferably as an electric motor 408 formed and more preferably as a direct drive 408 of the second central cylinder 401 educated. The second drive motor 408 of the second central cylinder 401 is preferred as a synchronous motor 408 educated.
  • The second rotation angle sensor is likewise designed, for example, as a rotary encoder or absolute value encoder, so that a rotational position of the second drive motor 408 and / or preferably a rotational position of the second central cylinder 401 preferably by means of the higher-level machine control is absolutely determinable. The second drive motor 408 of the second central cylinder 401 is preferably at a first, on the axis of rotation 407 of the second central cylinder 401 related axial end of the second central cylinder 401 arranged, while the rotation angle sensor preferably at a second, on the axis of rotation 407 of the second central cylinder 401 related axial end of the second central cylinder 401 is arranged. The rotation angle sensor preferably also has a particularly high resolution, for example a resolution of at least 3,000 (three thousand) and preferably at least 10,000 (ten thousand) increments per full angle (360 °) and more preferably at least 100,000 (one hundred thousand) increments per full angle (360 °). The rotation angle sensor preferably has a high temporal sampling frequency.
  • Within the second printing unit 400 is at least a second, as an inkjet printing unit 411 or also ink-jet printing unit 411 trained printing unit 411 in the direction of rotation of the second central cylinder 401 and thus along the transport path of the printing material web 02 after the second impression roller 406 on the second central cylinder 401 arranged aligned. The at least one second printing unit 411 the at least one second printing unit 400 is preferably identical to the at least one first printing unit 211 the at least one first printing unit 200 , in particular with respect to at least one nozzle bar 413 , at least one, as an ink jet printhead 412 trained 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 beam 413 and the at least one printhead 412 means at least one adjustment mechanism with a corresponding electric motor. An analogous protective cover and / or cleaning device is also preferably arranged. Also a correct orientation of the printheads 412 the at least one second printing unit 400 is preferably checked by the fact that at least one sensor detects a printed image and the machine controller evaluates this printed image. This at least one sensor is preferably at least one second printed image sensor which is designed analogously to the at least one first printed image sensor. This is preferably at least a second printing unit 411 as a four-color printing unit 411 educated.
  • The printing press 01 preferably has at least one register sensor, the one layer at least one and preferably each first, of the at least one first printing unit 211 on the first page of the printing material web 02 plotted printed image and sends to the higher-level machine control. As the at least one printed image, which is detected by the register sensor, for example, a barcode can be used, which is for this purpose in the first printing unit 200 on the substrate web 02 is applied. Such a barcode may contain information about the content and / or dimensions of one of the first printing units 200 on the substrate web 02 included printed image. As a result, registration is ensured, even if, for example, a section length, that is to say a length of printed images applied in the direction of the transport path of the printing material web 02 is changed. The higher-level machine control calculates from the position of this print image the ideal period for controlling the nozzles of the print heads 412 of the at least one second printing unit 411 , In this way, a register-oriented alignment of the first print image on the first page of the printing substrate 02 and second printed image on the second side of the substrate web 02 reached.
  • The at least one register sensor, based on the transport path of the printing material web 02 preferably closer to the second central cylinder 401 arranged as at the first central cylinder 201 , In this way, as many influences as possible can be taken into account, that of the printing material web 02 along its transport path between the at least one first printing unit 211 and the at least one second printing unit 411 is exposed, for example, expansions of the substrate web 02 along the transport route. Preferably, the at least one register sensor is designed as at least one area camera. Such an area camera preferably has a sufficiently high resolution to detect register errors and / or registration errors, for example, a resolution greater than 0.05 mm. Preferably, the at least one register sensor is identical to the at least one first printed image sensor, with which the control of all in the circumferential direction of the first central cylinder 201 one behind the other and / or acting printheads 212 and / or double rows of printheads 212 of the first printing unit 211 monitored and regulated.
  • With regard to the transport path of the printing material web 02 is after the at least one second printing unit 400 at least a second dryer 331 arranged. After the printing material web 02 the at least one second printing unit 400 has happened, the printing substrate 02 transported along their transport path and the at least one second dryer 331 the at least one dryer unit 300 fed. The least a second dryer 331 is preferably analogous to the at least one first dryer 301 built up. The at least one first dryer 301 and the at least one second dryer 331 are components of at least one dryer unit 300 , Preferably has a on the substrate web 02 referred to Einwirkbereich the at least one first dryer 301 from the at least one second dryer 331 away and points to the printing material 02 referred to Einwirkbereich the at least one second dryer 331 from the at least one first dryer 301 path. More preferably, runs between the at least one first dryer 301 and the at least one second dryer 331 a section of the transport path of the printing material web 02 ,
  • Preferably, the second, from the at least one second printing unit 400 printed side of the substrate web 02 between a last contact point of the printing material web 02 with the second central cylinder 401 the at least one second printing unit 400 and an area of action of the at least one second dryer 301 with no component of the web-fed rotary press 01 in contact. Preferably, the first, from the first printing unit 200 printed, already dried and from the second printing unit 400 not printed, the second central cylinder 401 the at least one second printing unit 400 touching side of the substrate web 02 between the last contact point of the printing material web 02 with the second central cylinder 401 the at least one second printing unit 400 and the area of action of the at least one second dryer 331 with at least one guide roller 414 the at least one second printing unit 400 and / or with at least one deflection roller 342 the at least one second dryer 331 in contact. At least one deflection roller is preferred 414 the second printing unit 400 arranged the printing substrate 02 after this in a direction with a greater vertical, preferably downwardly oriented component than optionally present horizontal component of the second central cylinder 401 has deflected, deflected in a direction that has a larger horizontal component than any existing vertical component. It is only the through the second printing unit 400 non-printed first side of the substrate 02 with this at least one guide roller 414 the second printing unit 400 in contact. At least one deflection roller is preferred 342 the at least one second dryer 331 arranged the printing substrate 02 from this direction or another direction with a larger horizontal component than any vertical component present in a direction with a larger vertical, preferably upwardly oriented component as optionally present horizontal component deflects. It is only the through the second printing unit 400 non-printed first side of the substrate 02 with the at least one guide roller 342 the at least one second dryer 331 in contact.
  • The at least one second dryer 331 is also preferred as an infrared radiation dryer 331 educated. The structure of the at least one second dryer 331 is similar to the construction of the at least one first dryer 301 , in particular with regard to a design as a flow dryer 331 and / or radiation dryer 331 and / or hot air dryer 331 and / or UV radiation dryer 331 , In particular, the at least one second dryer 331 preferably at least one second cooling roll 334 on, the further preferred at least a sixth motor-driven rotary body 334 represents. Preferably, the at least one second dryer 331 with respect to the components described substantially and further preferably completely symmetrical to the at least one first dryer 301 built up. Preferably, the at least one second dryer 331 also a ventilation device, which is analogous to the ventilation device of the at least one first dryer 301 is formed and / or coupled with this or identical.
  • The at least one second dryer 331 is preferably part of the same dryer unit 300 like the at least one first dryer 301 and is more preferably in a same housing 329 arranged. With respect to a spatial arrangement is the dryer unit 300 and are therefore preferred at least a first dryer 301 and the at least one second dryer 331 preferably between the at least one first printing unit 200 and the at least one second printing unit 400 arranged. This means that preferably a straight line connecting a rotation axis 207 the at least one first central cylinder 201 the at least one first printing unit 200 with a rotation axis 407 at least a second central cylinder 401 at least a second printing unit 400 the at least one dryer unit 300 cuts.
  • Along the transport path of the printing material web 02 after the at least one second dryer 331 is at least an extraction roller 501 arranged. The at least one pull-out roller 501 preferably has its own, as a pull-out roller drive 504 trained drive motor 504 on. The at least one pull-out roller 504 preferably provides at least a seventh motorized rotary body 504 dar. The at least one pull-out roller 501 preferably forms together with one of the at least one pull-out roller 501 employed and / or employable extract press 502 a pull-out gap 503 in which the printing material web 02 is trapped and by the the printing material web 02 is encouraged. The at least one pull-out roller 501 can but Also be designed as a suction roll. The pull-out press 502 preferably has a lateral surface which consists of an elastic material, for example an elastomer. The pull-out gap 503 is preferably used to control a web tension and / or transport of the printing material web 02 ,
  • With regard to the transport path of the printing material web 02 before and / or after the extraction roller 501 Preferably, at least one remoistening device is arranged, which causes excessive moisture loss of the printing material web 02 due to the treatment by the dryer unit 300 balances. The at least one remoistening device preferably has at least one first electrode, which preferably has the printing material web 02 electrically charged. The at least one remoistening device preferably has at least one second electrode, which is oppositely charged to the at least one first electrode and at the or in the immediate vicinity of which water is preferably released in the form of preferably charged water droplets and / or water vapor. The at least one first electrode and / or the charged printing material web 02 on the one hand and the at least one second electrode on the other hand together form a capacitor, in the electric field, the preferably charged water droplets and / or the water vapor on the printing material web 02 to be moved and moisten them when reaching. This will prevent the substrate web 02 is unnecessarily brittle, especially if it is further processed.
  • Along the transport path of the printing material web 02 after the pull-out gap 503 and / or after the rewet device is at least one rework device 500 arranged, preferably as a folding device 500 is formed and / or a sheet cutter 500 and / or a planned expense 500 or as a winding device 500 is trained. In this and / or by this post-processing device 500 becomes the printing material web 02 preferably folded and / or cut and / or stapled and / or sorted and / or enveloped and / or shipped and / or wound up.
  • By way of example, a preferred post-processing device 500 described. The printing material web 02 is in the post-processing device 500 preferably around at least one turning bar 506 or guide roller 506 guided around at an angle of 40 ° to 50 ° to a transport direction of the printing material web 02 oriented. At least one former is preferred 507 arranged the printing material web 02 For example, preferably provides a longitudinal fold. Alternatively, a transport path of the printing material web 02 the at least one former 507 also work around. (Such an alternative transport route is exemplary in the 10 Dashed lines shown.) Subsequently, the transport path of the printing substrate runs 02 preferably via at least one guide roller 508 and / or by at least one pair of conveyor belts 509 ,
  • The printing material web is preferred 02 by means of a cross-cutting device 511 cut into sections and these sections by means of a folding knife 512 and a pair of folding rolls 513 provided with a first transverse fold. Following the sections are preferably either by means of another folding blade 514 , for example, a folding sword 514 provided with an optionally second longitudinal fold and / or stapled and / or cut to size. Further or alternative treatments are also possible. In this way, printed products can be produced which have, for example, optionally eight, twelve or sixteen pages.
  • The transport path of the printing material web 02 through the printing press 01 can be divided into several sections. Along the transport path of the printing material web 02 through the web-fed rotary press 01 are preferably several contact points between the substrate web 02 and motorized rotary bodies 103 ; 118 ; 201 ; 304 ; 401 ; 334 ; 501 arranged. In each case, two such contact points preferably delimit between the printing material web 02 and motorized rotary bodies 103 ; 118 ; 201 ; 304 ; 401 ; 334 ; 501 every section of the transport path of the printing material web 02 through the printing press.
  • A first such contact point is preferred by the Rollenabspulvorrichtung 100 fixed, wherein preferably the roll holding device 103 the corresponding first motor-driven rotary body 103 represents and of the drive motor 104 the Rollenabspulvorrichtung 100 is driven. A second such contact point is preferred by the feed nip 119 set, preferably the draw roller 118 the corresponding second motor driven rotary body 118 represents and of the traction drive motor 146 is driven. A third such contact point is preferred by the at least one first central cylinder 201 set, wherein preferably the at least one first central cylinder 201 the corresponding third motor driven rotary body 201 represents and of its drive motor 208 is driven. A fourth such contact point is preferred by the first cooling nip 309 set, wherein preferably the first cooling roller 304 the corresponding fourth motor-driven rotary body 304 represents and of the first chill roll drive motor 311 is driven. A fifth such contact point is preferred by the at least one second central cylinder 401 set, wherein preferably at least a second central cylinder 401 the corresponding fifth motor-driven rotary body 401 represents and of its drive motor 408 is driven. A sixth such contact point is preferred by the second cooling nip 339 fixed, wherein preferably the second cooling roller 334 the corresponding sixth motor-driven rotary body 334 represents and of the second, as the second chill roll drive motor 341 trained drive motor 341 is driven. A seventh such contact point is preferred by the pull-out gap 503 set, wherein preferably the pull-out roller 501 the corresponding seventh motor-driven rotary body 501 represents and of the extract roller drive 504 is driven.
  • A first section of the transport path of the printing material web 02 preferably runs between the first contact point between the substrate web 02 and a motor driven rotary body 103 and the second contact point between the substrate web 02 and a motor driven rotary body 118 , A second section of the transport path of the printing material web 02 preferably runs between the second contact point between the substrate web 02 and a motor driven rotary body 118 and the third contact point between the substrate web 02 and a motor driven rotary body 201 , A third section of the transport path of the printing material web 02 preferably runs between the third contact point between the substrate web 02 and a motor driven rotary body 201 and the fourth contact point between the substrate web 02 and a motor driven rotary body 304 , A fourth section of the transport path of the printing substrate 02 preferably runs between the fourth contact point between the substrate web 02 and a motor driven rotary body 304 and the fifth contact point between the substrate web 02 and a motor driven rotary body 401 , A fifth section of the transport path of the printing material web 02 preferably runs between the fifth contact point between the substrate web 02 and a motor driven rotary body 401 and the sixth contact point between the substrate web 02 and a motor driven rotary body 334 , A sixth section of the transport path of the printing material web 02 preferably runs between the sixth contact point between the substrate web 02 and a motor driven rotary body 334 and the seventh contact point between the substrate web 02 and a motor driven rotary body 501 , Preference is given to each section of the transport path of the printing material web 02 in each case at least one measuring roller 141 ; 216 ; 214 ; 416 ; 414 ; 343 assigned.
  • The first section of the transport path preferably proceeds from that with the roller holding device 103 connected substrate roll 101 in the Rollenabspulvorrichtung 100 initially preferably via the dancer roller 113 and through the web cutter 114 and preferably as the feed measuring roller 141 trained measuring roller 141 and into the nip 119 , Preferably, a regulation of the web tension in this first section takes place in that the at least one drive motor 104 the roll holding device 103 in its rotational speed is regulated so that the dancer roller 113 carrying dancer lever 121 in a desired position, for example, a middle position remains. Alternatively or additionally, the regulation of the web tension in this first section takes place in that the at least one drive motor 104 the roll holding device 103 in its rotational speed is controlled so that one of the as a feed measuring roller 141 trained measuring roller 141 measured value of the web tension corresponds to a target value of the web tension.
  • The second section of the transport path preferably proceeds from the entry nip 119 around at least a first measuring roller 216 around and around the first guide roller 203 around and at least partially around the at least one first central cylinder 201 around and further preferably into the first impression gap 209 the at least one first printing unit 200 , The transport path preferably proceeds from the intake nip 119 initially with a greater horizontal than possibly present vertical component over the at least one first printing unit 200 and then with greater vertically downwardly pointing than optionally present horizontal component up to a height below the at least one first central cylinder 201 and then with a greater horizontal than, if any, vertical component below the axis of rotation 207 the at least one first central cylinder 201 through and then around the first measuring roller 216 and around the first guide roller 203 to the cylinder surface of the at least one first central cylinder 201 and preferably in the first impression gap 209 , In a first embodiment, a regulation of the web tension in this second section takes place in that by means of the first measuring roller 216 the web tension is measured and a rotational speed of the draw roll 118 by means of the traction drive motor 146 is regulated so that the web tension on the first measuring roller 216 assumes a predetermined value. In a second embodiment, a regulation of the web tension in this second section takes place in that by means of the first measuring roller 216 the web tension is measured and a rotational speed of the first central cylinder 201 by means of its drive motor 208 is regulated so that the web tension on the first measuring roller 216 takes the given value.
  • The third section of the transport path preferably extends from the at least one first central cylinder 201 and / or the first impression gap 209 through the at least one first dryer 301 to the first cooling nip 309 , The transport path preferably proceeds from the at least one first central cylinder 201 and / or the first impression gap 209 through the at least one first printing unit 211 and at least one, as the second measuring roller 214 trained deflection roller 214 the first printing unit 200 and around the at least one guide roller 312 the at least one first dryer 301 and through the at least one first dryer 301 and around the first connecting roller 307 the first cooling device 303 and around the first chill roll 304 to the first cooling nip 309 , In a first embodiment, a regulation of the web tension in this third section takes place in that by means of the second measuring roller 214 the web tension is measured and a rotational speed of the at least one first central cylinder 201 by means of its drive motor 208 is regulated so that the web tension on the second measuring roller 214 assumes a predetermined value. In a second embodiment, a regulation of the web tension in this third section takes place in that by means of the second measuring roller 214 the web tension is measured and a rotational speed of the first cooling roll 303 by means of the first cooling roller drive motor 311 is regulated so that the web tension on the second measuring roller 214 assumes a predetermined value.
  • The fourth section of the transport path preferably extends from the first cooling nip 309 around at least a third measuring roller 416 around and around the second guide roller 403 around and at least partially around the second central cylinder 401 around and preferably into the second impression gap 409 the at least one second printing unit 400 , The transport path preferably proceeds from the first cooling nip 309 initially with a larger horizontal than optionally present vertical component over the at least one first dryer 301 and the at least one second dryer 331 and then with a greater vertical downward pointing than optionally present horizontal component to a height below the second central cylinder 401 and then with a greater horizontal than, if any, vertical component below the axis of rotation 407 of the second central cylinder 401 through and then around a third measuring roller 416 and around the second guide roller 403 to the cylinder surface of the second central cylinder 401 and preferably in the second impression gap 409 , In a first embodiment, a regulation of the web tension in this fourth section takes place in that by means of the third measuring roller 416 the web tension is measured and a rotational speed of the first cooling roll 303 by means of the first cooling roller drive motor 311 is regulated so that the web tension on the third measuring roller 416 assumes a predetermined value. In a second embodiment, regulation of the web tension in this fourth section preferably takes place in that by means of the third measuring roller 416 the web tension is measured and a rotational speed of the second central cylinder 401 by means of its drive motor 408 is regulated so that the web tension on the third measuring roller 416 assumes a predetermined value.
  • The fifth section of the transport path preferably extends from the at least one second central cylinder 401 and / or the second impression gap 409 through the at least one second dryer 331 to a second cooling nip 339 , The transport path preferably proceeds from the at least one second transport cylinder 401 and / or the second impression gap 409 through the at least one second printing unit 411 and at least one, as the fourth measuring roller 414 trained deflection roller 414 the second printing unit 400 and around the at least one guide roller 342 the at least one second dryer 331 and through the at least one second dryer 331 and a third tie-bar 337 a second cooling device 333 and a second cooling roll 334 to the second cooling nip 339 that of the second chill roller 334 and the second chill roll press 336 is formed. Preferably, the second cooling roller 334 a separate second chill roll drive motor 341 on. In a first embodiment, a regulation of the web tension in this fifth section takes place in that by means of the fourth measuring roller 414 the Web tension is measured and a rotational speed of the second central cylinder 401 by means of its drive motor 408 is regulated so that the web tension on the fourth measuring roller 414 assumes a predetermined value. In a second embodiment, a regulation of the web tension in this fifth section takes place in that by means of the fourth measuring roller 414 the web tension is measured and a rotational speed of the second chill roll 334 by means of the second cooling roller drive motor 341 is regulated so that the web tension on the fourth measuring roller 414 assumes a predetermined value.
  • The sixth section of the transport path extends from the second cooling nip 339 between the at least one first dryer 301 and the at least one second dryer 331 through and around at least a fifth measuring roller 343 around by the pull-out gap 503 , In a first embodiment, a regulation of the web tension in this sixth section takes place in that by means of the fifth measuring roller 343 the web tension is measured and a rotational speed of the second chill roll 334 by means of the second cooling roller drive motor 341 is regulated so that the web tension on the fifth measuring roller 343 assumes a predetermined value. In a second embodiment, a regulation of the web tension in this sixth section takes place in that by means of the fifth measuring roller 343 the web tension is measured and a rotational speed of the draw-out roller 501 by means of their extraction roller drive 504 is regulated so that the web tension on the fifth measuring roller 343 remains constant.
  • All measuring rolls are preferred 141 ; 216 ; 214 ; 416 ; 414 ; 343 and / or other, the web tension measuring measuring devices and all drive motors 104 ; 146 ; 208 ; 311 ; 408 ; 341 ; 504 connected to the higher-level machine control, more preferably with an electronic Antriebsleitachse. The higher-level machine control preferably influences several and more preferably all drive motors 104 ; 146 ; 208 ; 311 ; 408 ; 341 ; 504 with respect to the transport path of the printing material web 02 preceding and / or subsequent motor-driven rotary bodies 103 ; 118 ; 201 ; 304 ; 401 ; 334 ; 501 as soon as due to a measurement at least one such drive motor 104 ; 146 ; 208 ; 311 ; 408 ; 341 ; 504 being affected. This results in a particularly rapid adjustment along the entire transport path of the printing material web 02 on changes in the web tension. In another embodiment, the web tension is regulated independently in the individual sections. This then indirectly results in changes in the web tension in adjacent sections, which are then automatically compensated. At least one drive motor 104 ; 146 ; 208 ; 311 ; 408 ; 341 ; 504 is preferred as a leading drive motor 104 ; 146 ; 208 ; 311 ; 408 ; 341 ; 504 educated. A rotational speed of the leading drive motor is preferred 104 ; 146 ; 208 ; 311 ; 408 ; 341 ; 504 predetermined, more preferably independent of measurements of the measuring rollers 141 ; 216 ; 214 ; 416 ; 414 ; 343 , Further preferred is the extraction roller drive 504 the leading drive motor 504 ,
  • In a simplified embodiment, the first cooling nip is omitted 309 and / or the second cooling nip 339 such that said third portion and said fourth portion form a common portion and / or said fifth portion and said sixth portion form a common portion. Additionally and / or alternatively omitted in the or another simplified embodiment of the first and / or the second impression roller 206 ; 406 , This is possible, for example, if it is ensured in another way that no slippage between the substrate web 02 and a central cylinder 201 ; 401 occurs, for example, by sufficiently high friction.
  • LIST OF REFERENCE NUMBERS
  • 01
    Printing machine, rotary printing press, inkjet printing machine, rotary web press
    02
    Substrate, substrate web, paper web, textile web, film, plastic film, metal foil
    100
    Substrate source, roll-off device, reel splicer
    101
    printing material
    102
    103
    Roller holding device, clamping device, clamping mandrel, clamping cone, clamping device, mandrel, clamping cone, clamping shaft; Rotation body, first
    104
    Drive motor, electric motor ( 103 )
    105
    106
    Torque transmitter, traction, belt, timing belt, gear, chain
    107
    Beam ( 101 )
    108
    Axle, support, support frame ( 107 )
    109
    Pivot axis ( 108 )
    110
    111
    Rotation axis ( 101 ; 103 )
    112
    frame
    113
    dancer roll
    114
    Web Edge Aligner, Web Aligner, first
    115
    116
    aligning
    117
    Zugpresseur
    118
    draw roller; Rotation body, second
    119
    nip
    120
    121
    dancer arm
    122
    Spannwellenlager, folding bearing
    123
    Driving element, clamping jaw
    124
    Part-turn actuator, electric motor, hydraulic cylinder, electric lift cylinder drive
    125
    126
    bevel gear
    127
    feeding
    128
    Passage, opening
    129
    Bearings, roller bearings, plain bearings
    130
    131
    component
    132
    Swivel range limit
    133
    position sensor
    134
    reference component
    135
    136
    torque arm
    137
    torque limiter
    138
    Bracket, support
    139
    infeed
    140
    141
    Measuring roller, feed measuring roller
    142
    position limit
    143
    ring groove
    144
    attack
    145
    146
    Drive motor, traction drive motor (118)
    200
    Printing unit, first
    201
    Central pressure cylinder, central cylinder, first; Rotation body, third
    202
    Substrate cleaning device, web cleaning device, dedusting device, first
    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, synchronous motor
    209
    Impression gap, first
    210
    211
    Printing unit, inkjet printing unit, inkjet printing unit, four-color printing unit, first
    212
    Printhead, inkjet printhead, first
    213
    Nozzle bar, first
    214
    Deflection roller, measuring roller, second
    215
    216
    Measuring roller, first
    300
    dryer unit
    301
    Dryer, infrared radiation dryer, radiation dryer, flow dryer, UV radiation dryer, hot air dryer, first
    302
    Radiation source, infrared radiation source
    303
    Cooling device, first
    304
    Chill roll, first; Rotation body, fourth
    305
    306
    Kühlwalzenpresseur
    307
    Anlenkwalze
    308
    Anlenkwalze
    309
    Cooling nip
    310
    311
    Drive motor, chill roll drive motor ( 304 ), first
    312
    deflecting
    313
    Ventilation opening ( 301 )
    314
    315
    316
    Casing ( 302 )
    317
    Air supply line, line
    318
    Air discharge pipe, pipe
    319
    Back-up roller, first
    320-328
    329
    Casing ( 300 )
    330
    331
    Dryer, infrared radiation dryer, flow dryer, radiation dryer, hot air dryer, UV radiation dryer, second
    332
    333
    Cooling device, second
    334
    Chill roll, second; Rotation body, sixth
    335
    336
    Chill roller press, second
    337
    Connecting roller, third
    338
    339
    Cooling nip, second
    340
    341
    Drive motor, chill roll drive motor ( 334 ), second
    342
    deflecting
    343
    Measuring roller, fifth
    400
    Printing unit, second
    401
    Central pressure cylinder, central cylinder, second; Rotation body, fifth
    402
    Substrate cleaning device, web cleaning device, dedusting device, second
    403
    Roller, guide roller
    404
    Gap ( 401 ; 403 )
    405
    406
    Cylinder, impression roller, second
    407
    Rotation axis ( 401 )
    408
    Drive motor, direct drive, electric motor, synchronous motor
    409
    Impression gap, second
    410
    411
    Printing unit, inkjet printing unit, inkjet printing unit, four-color printing unit, second
    412
    Printhead, inkjet printhead, second
    413
    Nozzle bar, second
    414
    Deflection roller, measuring roller, fourth
    415
    416
    Measuring roller, third
    500
    Post-processing device, folding device, rewinder, sheet cutter, plan delivery
    500
    Outfeed roller; Rotation body, seventh
    501
    Auszugpresseur
    502
    excerpt gap
    503
    Drive motor, extract roller drive ( 501 )
    504
    505
    506
    Turning bar, guide roll
    507
    formers
    508
    guide roll
    509
    conveyor belts
    510
    511
    Cross-cutting device
    512
    folding blade
    513
    Falzwalzenpaars
    514
    folding blade
    A
    Direction, axial

Claims (8)

  1. Rotary printing machine ( 01 ), wherein the rotary printing machine ( 01 ) at least a first printing unit ( 200 ) and at least a first dryer ( 301 ), wherein the at least one first printing unit ( 200 ) at least a first central cylinder ( 201 ) with its own, the at least one first central cylinder ( 201 ) associated drive motor ( 208 ) and at least one, on a lateral surface of the at least one first central cylinder ( 201 ) aligned inkjet printhead ( 212 ) and wherein the at least one first dryer ( 301 ) at least one ventilation device and wherein the at least one ventilation device at least one to the at least one first dryer ( 301 ) leading air supply line ( 317 ) and at least one driven and / or drivable conveying device, characterized in that the at least one ventilation device at least one leading away from the at least one first dryer air discharge line ( 318 ) and that the at least one air discharge line ( 318 ) via the at least one conveyor with the at least one air supply line ( 317 ) is coupled and / or coupled and that along a transport path of a printing substrate ( 02 ) by the rotary printing machine ( 01 ) at least one entry nip ( 119 ), a first impression gap ( 209 ), a first cooling nip ( 309 ), a second impression gap ( 409 ), a second cooling nip ( 339 ) and an extract gap ( 503 ) are arranged.
  2. Rotary printing machine according to claim 1, characterized in that at least one gas valve one of the at least one air supply line ( 317 ) and a proportion of the at least one air discharge line ( 318 ) flowing gas stream is determined determining.
  3. Rotary printing machine according to claim 2, characterized in that the at least one gas valve is coupled to a drive.
  4. Rotary printing machine according to claim 3, characterized in that the at least one gas valve is designed to be adjustable.
  5. Rotary printing machine according to claim 1, 2, 3 or 4, characterized in that at least one dryer unit ( 300 ) at least the at least one first, as a radiation dryer ( 301 ) trained dryer ( 301 ) and at least one first chill roll ( 304 ) having.
  6. Rotary printing machine according to claim 1, 2, 3, 4 or 5, characterized in that as a contact surface between the at least one first central cylinder ( 201 ) and the substrate ( 02 ) provided partial surface of the lateral surface of the at least one first central cylinder ( 201 ) an angle of wrap about the at least one first central cylinder ( 201 ) which is at least 270 °.
  7. Rotary printing machine according to claim 1, 2, 3, 4, 5 or 6, characterized in that along the transport path of the printing substrate ( 02 ) by the rotary printing machine ( 01 ) after at least the first printing unit ( 200 ) at least the at least one first dryer ( 301 ) and then at least one second printing unit ( 400 ) and then at least a second dryer ( 331 ) is arranged.
  8. Rotary printing machine according to claim 1, 2, 3, 4, 5, 6 or 7, characterized in that the transport path of the printing substrate ( 02 ) by an area of action of at least the first dryer ( 301 ) in one direction with a greater vertical than possibly present horizontal component.
DE102011088776A 2011-12-16 2011-12-16 Rotary printing machine, particularly roll rotary printing machine or inkjet printing machine, comprises printing unit and dryer, where printing unit has central cylinder with separate drive motor arranged at central cylinder Active DE102011088776B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102011088776A DE102011088776B3 (en) 2011-12-16 2011-12-16 Rotary printing machine, particularly roll rotary printing machine or inkjet printing machine, comprises printing unit and dryer, where printing unit has central cylinder with separate drive motor arranged at central cylinder

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
DE102011088776A DE102011088776B3 (en) 2011-12-16 2011-12-16 Rotary printing machine, particularly roll rotary printing machine or inkjet printing machine, comprises printing unit and dryer, where printing unit has central cylinder with separate drive motor arranged at central cylinder
EP12718200.4A EP2714408B2 (en) 2011-06-01 2012-05-02 Printing machine and process to control web tension
ES12718200.4T ES2529490T5 (en) 2011-06-01 2012-05-02 Printer and procedure to regulate a band tension
PCT/EP2012/057979 WO2012163614A1 (en) 2011-06-01 2012-05-02 Printing machine and method for adjusting a web tension
CN201280024598.7A CN103561959B (en) 2011-06-01 2012-05-02 Printer and the method being used for adjusting band stress
US14/118,697 US9114636B2 (en) 2011-06-01 2012-05-02 Printing machine and method for adjusting a web tension
JP2014511803A JP5623674B2 (en) 2011-06-01 2012-05-02 Printer and method for adjusting web tension
CN201280024496.5A CN103635326B (en) 2011-06-01 2012-05-25 printer
PCT/EP2012/059835 WO2012163829A1 (en) 2011-06-01 2012-05-25 Printing machine
US14/119,275 US8960891B2 (en) 2011-06-01 2012-05-25 Printing machine
EP20120723870 EP2714409B1 (en) 2011-06-01 2012-05-25 Printing machine
PCT/EP2012/069916 WO2013087249A1 (en) 2011-12-16 2012-10-09 Web-fed printing press
EP12770482.3A EP2734375B1 (en) 2011-12-16 2012-10-09 Web-fed printing press

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DE102017208741A1 (en) 2016-05-24 2017-11-30 Koenig & Bauer Ag Sheetfed
WO2017202846A1 (en) 2016-05-24 2017-11-30 Koenig & Bauer Ag Sheet-fed press
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DE102017208739A1 (en) 2016-05-24 2017-11-30 Koenig & Bauer Ag Sheetfed
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DE102017212981A1 (en) 2017-07-27 2019-01-31 Koenig & Bauer Ag Sheet processing machine and a method for operating a sheet processing machine
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DE102017220594A1 (en) 2017-11-17 2019-05-23 Koenig & Bauer Ag Method for operating a sheet processing machine
DE102017222315A1 (en) 2017-12-08 2019-06-13 Koenig & Bauer Ag Substrate supply means
WO2019110236A1 (en) 2017-12-08 2019-06-13 Koenig & Bauer Ag Substrate-feeding device and a sheet-processing machine
WO2019110237A1 (en) 2017-12-08 2019-06-13 Koenig & Bauer Ag Substrate-feeding device and a sheet-processing machine
DE102017222316A1 (en) 2017-12-08 2019-06-13 Koenig & Bauer Ag Substrate supply means
DE102017222314A1 (en) 2017-12-08 2019-06-13 Koenig & Bauer Ag Substrate supply means

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