EP3169522A1

EP3169522A1 - Inking unit of a printing unit

Info

Publication number: EP3169522A1
Application number: EP15732662.0A
Authority: EP
Inventors: Stephan Behnke; Bernd Masuch; Wolfgang Reder
Original assignee: KBA Metalprint GmbH and Co KG
Current assignee: KBA Metalprint GmbH and Co KG
Priority date: 2014-07-16
Filing date: 2015-06-29
Publication date: 2017-05-24
Anticipated expiration: 2035-06-29
Also published as: WO2016008700A1; US20170197404A1; EP3169522B1; PL3169522T3; US9833989B2

Abstract

The invention relates to an inking unit of a printing unit and a device for printing on hollow bodies each having a cylindrical lateral surface, said device comprising said inking unit, the inking unit (06) having an anilox roller (08), which receives a printing ink from an ink reservoir, and having an inking roller (07) placed against a printing cylinder (04) of the printing unit, a rider roller (13) being arranged axially parallel to the anilox roller (08) in a region between the ink reservoir and the inking roller (07), said region being located subsequent to the ink reservoir in a direction of rotation of the anilox roller (08), which ink reservoir interacts with the anilox roller (08), the rider roller (13) being placed against the anilox roller (08), characterized in that the rider roller (13) is rotationally driven by the anilox roller (08) by means of friction, the inking roller (07) being rotationally driven by the anilox roller (08) by means of friction, the plate cylinder (04) and the anilox roller (08) each being independently rotationally driven by a motor (11; 12).

Description

description

Inking unit of a printing unit

The invention relates to an inking unit of a printing unit according to the preamble of claim 1.

Such as As is known from WO 2012/148576 A1, in the packaging industry in a device for the decoration of each having a cylindrical surface having hollow bodies mostly multiple printing units are used. Each of these printing units each transfers a printing ink to a blanket commonly used by these printing units. The lateral surface of the respective hollow body is then by a relative movement between the lateral surface of the respective hollow body and the previously colored in particular multicolored blanket, in particular by rolling the lateral surface of the respective hollow body on this blanket, with a z. B. decorated multicolored print motif.

Such a device for printing or decoration of particular each having a preferably cylindrical outer surface having hollow bodies is z. B. in conjunction with an i. d. R. multiple workstations using plant for the production of such hollow body, wherein the printing or the decoration of the hollow body is carried out by a printing process, which is why these hollow body generally as

Printed products can be called. In such a system to be printed hollow body in a mass production with z. B. several hundred or even a few thousand pieces per minute, z. B. manufactured between 1,500 and 3,000 pieces per minute. Such hollow body z. B. made of metal, especially steel or aluminum, or made of a plastic. Such hollow body made of metal z. B. used as beverage cans or aerosol cans. Such hollow plastic body z. B. prepared in the form of thermoplastic moldings and z. B. as a cup for packaging z. B. of liquid or pasty foods,

used in particular for dairy products or beverages. However, the respective hollow body may also be a round tube body produced either from a plastic or from aluminum, wherein a tube is understood to mean an elongated, firm, but malleable container which is provided for filling with a substance, in particular pasty substance. Tubes made of aluminum are z. B. produced in a Rückwärtsfließpressverfahren. Plastic tubes are z. B. produced by extrusion in each case as seamless tubes. Another kind of in one

The aforementioned device to be printed hollow bodies may be made of glass preferably cylindrical containers or vessels, for. As bottles or bottles.

Beverage cans are preferably made of aluminum and are i. d. R. so-called second doses, in which a circular ground together with a

preferably straight cylinder jacket, each of a single workpiece, d. H. from a so-called Slugs or from a Ronde, d. H. a circular disc, in a forming process, for. B. in a cold extrusion or in a Zugdruckumformverfahren, preferably by deep drawing, in particular by

Ironing, to a hollow body open on one side, d. H. be manufactured into a so-called Rohdose and wherein in a final manufacturing step, a circular cover placed on the cylinder jacket and by beading with the

Cylinder jacket is connected airtight.

Another type of can tinplate cans. Tinplate is a tinned sheet steel. For the production of tinplate cans, the thickness of the steel sheet z. B. 0.15 mm to 0.49 mm, the thickness of the tin layer z. B. 0.2 μηη to 0.8 μηη, wherein the tin coating is used for corrosion protection. Tinplate cans are so-called

Three divided doses. In order to produce the jacket of a tinplate can, a rectangular strip of sheet steel is bent to a preferably straight cylinder jacket, wherein the ends of this bent into a cylinder jacket strip in a butt joint be welded. Subsequently, a circular bottom and a circular cover are placed on the cylinder jacket and the edges are crimped. In order to obtain a higher resistance to indentations for the tinplate box in question, have z. B. all three parts, ie, the cylinder jacket, the bottom and the lid preferably a

Wave profile.

An aerosol can, also referred to as a spray can or spray can, is a metal can for spraying liquids. In an aerosol can, the filled liquid is under pressure, wherein as a propellant for discharging the liquid in question from the respective can z. As propane, butane, dimethyl ether or mixtures thereof or compressed air or nitrogen is used.

The aforementioned WO 2012/148576 A1 describes a device for decorating cans, wherein an arrangement of several printing units, each with an inking unit for multicolor decoration of a plurality of cans is provided, each of the belonging to one of the printing units inking units each have a color box to provide Printing ink, wherein in each ink fountain each ink fountain roller for receiving the ink from the ink fountain in question is provided, wherein each inking unit each a Farbduktor are provided, wherein the ink fountain each ink from the respective ink fountain roller accommodates, wherein in one in the respective inking the each inking roller subsequent roller compactor several iridescent ink roller and several each with at least one of the

Farbreiberwalzen cooperating ink transfer rollers are provided, wherein for each inking unit in each case a plate cylinder is provided with at least one printing plate, wherein cooperates with the respective plate cylinder for applying the ink in each case only a single inking roller.

By WO 2004/109581 A2 is an apparatus for carrying out a contactless digital printing method, z. B. an inkjet printing process known to round objects, in particular second-dose, without the use of a blanket, if necessary, to print individually, wherein preferably a plurality of print heads are provided, each printing a single ink.

From DE 10 2006 004 568 A1 a short inking unit for a printing machine is known, comprising a printing form cylinder, an inking roller cooperating with the printing form cylinder and the inking roller contacting anilox roller, which is associated with a device for ink supply, wherein at least one leveling roller between the place of ink supply and the contact gap between the

Anilox roller and the inking roller, based on the direction of rotation of the anilox roller, is arranged, wherein the means for ink supply is designed as a chambered doctor blade.

From DE 101 60 734 A1 a printing machine is known which comprises at least one printing forme, a dampening unit for moistening the printing forme with a fountain solution, an inking unit for coloring the printing form with an ink and a

Dehumidifying with a heating roller (tempering) for reducing a promoted together with the ink portion of the dampening solution, wherein the inking unit is designed as a lifeless short inking unit, wherein a

Inking roller of the inking unit has a first Abrollkontaktstelle at which the inking roller is in rolling contact with the heating roller, wherein the inking roller has a second Abrollkontaktstelle and wherein a shortest conveying path of the ink from the inking roller to the printing forme is specified by at most one intermediate roller.

From DE 32 32 780 A1 an inking unit for offset printing machines for printing sheets or webs with a plate cylinder is known, which receives the required color of at most two inking rollers with an elastic surface, with a

Color cylinder cooperate, the color is fed through a Farbzuführsystem that produces a continuous color film, the color cylinder a An inking roller with almost the same diameter as the plate cylinder is arranged downstream, wherein the inking cylinder is assigned a dampening unit with at least one dampening agent transferring roller and wherein the transfer of the fountain solution to the inking cylinder in the same direction of rotation takes place after the inking and before the contact point with the inking roller.

From DE 10 2006 048 286 A1 a method for driving a printing unit with a short inking unit in a processing machine with an anilox roller and an associated doctor device and one of the anilox roller is arranged downstream

Inking roller known, which is arranged downstream of a plate / forme cylinder in the color flow direction, wherein the plate / forme cylinder with a blanket cylinder and the blanket cylinder with a pressure medium leading the printing cylinder in

Is operative connection, wherein the anilox roller is driven by a single drive, wherein in the printing / painting of the main drive input to a drive wheel of the printing cylinder and a drive wheel of the blanket cylinder and a second and first drive of the plate / forme cylinder and a drive wheel of the inking roller and a Drive wheel of the anilox roller is fed, wherein the single drive of

Anilox roller is inactive, and wherein in the setup mode, the drive connection to the

Main drive between the first drive wheel and the second drive wheel of the plate / forme cylinder is separated, the single drive of the anilox roller is activated and by means of a single drive a drive torque to the drive wheel of the anilox roller and the

Drive wheel of the inking roller and the first drive wheel of the plate / forme cylinder is introduced.

From DE 196 24 440 A1 discloses a device for filling wells of a cylinder of a printing press with a liquid is known, wherein on the cylinder at least two doctor devices for filling wells of the cylinder are arranged with the liquid, one connected to a conveyor system

Application device for the liquid and one of these in the direction of rotation of the cylinder subordinate working doctor blade are provided, wherein the doctor blades are attached to a beam, wherein the abgesakelte liquid is discharged to a collecting trough.

From DE 89 12 194 U1 an inking unit for use in a printing machine with an engageable to an anilox working doctor blade and a paint tray with inking means is known, wherein the working doctor blade, the ink pan and the means for conveying the ink to the anilox roller are combined to form a unit and the assembly is releasably attachable to a carrier mounted on the printing press.

From DE 10 2007 052 761 A1 an anilox printing unit is known, which as

An inking rollers has a fountain roller and an anilox roller, wherein the anilox roller is mounted on pivot levers, wherein the anilox roller and the

Inking roller each have bearer rings, one for pressing the bearer rings of a arranged on the bearer rings of the other inking roller device springs for compensating for manufacturing tolerance

Has differences in diameter.

From DE 28 51 426 A1 a device for printing each one

Mantle surface of hollow bodies is known, wherein a to be printed hollow body is provided about a rotation axis transporting transport means, wherein a plurality of printing units are provided, each to be printed hollow body with the transport device in a printing range of at least one of the printing units is transportable, wherein at least one of the printing units a Compressor cylinder and having an inking unit with a single inking roller.

DE 10 2006 032 204 B3 discloses a method for providing at least one printing forme at its installation location on a forme cylinder of a rotary printing machine, wherein the printing form illustrated with a printing motif has a printing plate

Transport device is transported to its mounting location on the form cylinder, wherein the printing form is transported with a transport module connected to the transport module, wherein the mounting of the printing forme takes place at its respective mounting location on the forme cylinder from the transport module.

From DE 10 2005 044 223 A1 discloses a printing unit of a web-fed rotary printing press is known, with a form cylinder and a rolling on the forme cylinder

Transfer cylinder, seen on the forme cylinder in the axial direction of the same seen several printing plates side by side and in the circumferential direction of the same preferably several printing plates are tensioned one behind the other, and with a forme cylinder associated printing plate changing device to printing plates on

Automatically change forme cylinder, wherein the pressure plate changing device along the forme cylinder translatorily movable actuator head for releasing and unlocking and locking or locking of printing plates on the forme cylinder and / or along the forme cylinder translationally movable removable cassette to keep new or einwechselnder and to accommodate age respectively.

includes replaced printing plates.

DE 40 03 445 A1 discloses an automatic Plattenzuführ- and

Cylinder charging system for a rotary printing press with a

Handling device for removing a printing plate from a container and for applying the printing plate on a plate cylinder of the printing unit and the

Removing a printing plate from a plate cylinder and for storing the pressure plate in the container known, wherein the handling device is guided along a substantially parallel to the axis of rotation of the plate cylinder to be fed path guide, wherein a carriage for transporting a plurality of printing plates to a printing unit or from one of these printing units is provided away and wherein the carriage is guided along a path guidance of the handling device substantially vertically extending routing. From DE 10 2007 035 689 B3 a method for arranging printing forms on a forme cylinder of a printing machine is known, wherein one of the printing plates is arranged in one of a plurality of axially adjacent the mounting cylinder juxtaposed mounting locations, each of the printing plates before their arrangement on a the mounting locations of the forme cylinder in each case at a storage position of an axially spaced apart in the axial direction of the forme cylinder a plurality of each spaced apart at a fixed distance arranged storage positions

Memory device is stored, wherein after arranging a first printing form on the forme cylinder, these form cylinder and / or the storage device are axially shifted by a travel relative to each other, that by this shift another to be arranged on the forme printing form at one to the mounting location of the previously arranged printing form is arranged in a relation to the distance between two adjacent memory positions of the memory device reduced distance adjacent mounting location on the forme cylinder.

From DE 196 20 997 C2 a method for the axial positioning of a printing plate during its application to a cylinder of a rotary printing machine is known, wherein the printing plate is supplied by means of transport to the cylinder, wherein for the application of the printing plate, a cylinder section is selected, wherein a plurality of possible , this cylinder section associated, preselected, axially adjacent positions a target position for the pressure plate is selected on the cylinder, wherein subsequently a position of the pressure plate in the axial direction with respect to a reference position located on the cylinder is determined and finally brought the pressure plate in the preselected desired position becomes.

The invention has for its object to provide an inking unit of a printing unit, which is particularly suitable for a device for printing hollow bodies.

The object is achieved by the features of claim 1. The dependent claims relate to advantageous developments and refinements of the solution found.

An embodiment of the invention is illustrated in the drawings and will be described in more detail below. With the invention achievable advantages are mentioned in connection with the embodiment.

Show it:

Fig. 1 shows a device for printing or for decoration of one each

Lateral surface having hollow bodies;

FIG. 2 shows an inking unit, in particular for the apparatus shown in FIG. 1, in a first operating position; FIG.

FIG. 3 shows the inking unit, in particular for the apparatus shown in FIG. 1, in a second operating position; FIG.

4 shows a chamber doctor blade system, in particular for the inking unit illustrated in FIGS. 2 and 3;

5 shows a disk changer in a first operating position;

Fig. 6 shows the disc changer of Fig. 5 in a second operating position.

The printing in particular of the lateral surface of a hollow body with a z. B.

multicolor print motif, ie at least one printed image is carried out in a preferred embodiment in a high-pressure process. Alternative printing methods are z. As a screen printing process or an offset printing process or a druckformloses Digital printing process. In the following the invention will be described by way of example in connection with a high pressure process. To execute the high-pressure method, a printing plate is arranged on a lateral surface of a printing form cylinder, in particular a plate cylinder, as the printing form. The printing plate ready for use for the printing process is a printing form with a printing relief, this printing relief reflects the image intended for the printing process mirrored, wherein in a trouble-free printing operation only the printing relief on the transfer of the

Plate cylinder ink supplied from the inking unit is involved in the blanket. The printing form or the printing plate has a plate-shaped preferably flexible carrier finite length z. B. from a steel sheet, wherein a particularly flexible pressure body is arranged on this support. At least the opposite in the circumferential direction of the plate cylinder ends of the carrier can, for. B. be bent according to the curvature of the lateral surface of the plate cylinder or be angled to facilitate assembly of the printing form, d. H. here in particular the

To allow pressure clichés on the plate cylinder. The support of the printing form or the printing plate has a thickness in the range of z. B. 0.2 mm to 0.3 mm. The

Printing plate has including its support a total thickness in the range of z. B. 0.7 mm to 1, 0 mm, preferably about 0.8 mm. The pressure hull is z. B. formed from a plastic. The pressure hull is used to produce the printing cliché that can be used for the printing process. B. exposed to a print image reproducing negative film, wherein unexposed areas then from the pressure body z. B. be removed by washing or by means of a laser.

A device for printing or for decoration in particular in each case a preferably cylindrical lateral surface having hollow bodies preferably has a plurality, for. B. eight or ten or even more printing units - also called printing stations - on, with at least one of these printing units, in the preferred

Execution all of these printing units each having a rotatable printing plate cylinder, in particular designed as a plate cylinder printing form cylinder. there the printing units or printing stations and possibly also the printing form cylinder are each stored in a frame in this device and can in the same

Printing process can be used to form on the same hollow body according to the number of participating printing units or printing forme cylinder multicolored print motif. The storage of the printing form cylinder or plate cylinder is in each case preferably designed as a flying bearing, wherein the relevant

Printing form cylinder or plate cylinder at one of its end faces in each case z. B. is mounted on a preferably conical pin. On the lateral surface of each plate cylinder is i. d. R. each arranged only a single printing plate, wherein the support of the printing plate the circumference of the respective plate cylinder completely or at least for the most part, in particular spans more than 80%. A directed in the circumferential direction of the relevant plate cylinder length of the pressure body of the printing plate is preferably formed shorter than the circumference of the relevant plate cylinder. The printing form or the printing plate is in particular magnetically arranged on the lateral surface of each plate cylinder by means of its carrier or at least can be arranged, d. H. the printing form or the printing plate is or is preferably there magnetically, d. H. held by a magnetic holding force. In an alternative or

complementary variant of the device for printing or for decoration of each preferably cylindrical surface having hollow bodies is at least one of the printing units or there are also several of these printing units each as a printing process printing in a digital printing process printing unit formed, such a printing unit in particular at least one inkjet print head or has a laser.

The particular simultaneous transfer of a plurality of printing inks in particular on the lateral surface of the hollow body in question requires that this color transfer takes place in register, in order to achieve a good print quality in the printing process. For a register-containing arrangement of the printing plate or the printing plate on the lateral surface of the relevant printing forme cylinder or plate cylinder are in the preferred Execution on the lateral surface of the relevant printing forme cylinder or

Plate cylinder preferably several z. B. in their respective position respectively

adjustable dowel pins provided which engage in corresponding recesses formed on the printing plate or on the printing plate and thereby give the printing plate or the printing plate there a defined position in its or its arrangement on the lateral surface of the respective printing forme cylinder or plate cylinder. In a preferred embodiment, each plate cylinder or plate cylinder each has a diameter in the range between 100 mm and 150 mm, in particular between 120 mm and 130 mm, wherein an axial length of the respective plate cylinder or plate cylinder in each case z. B. between 200 mm and 250 mm, in particular between 200 mm and 220 mm. The printing plate to be arranged on the lateral surface of the relevant plate cylinder has a width directed in the axial direction of the relevant plate cylinder in the range of 150 mm to 200 mm, preferably approximately 175 mm.

Each of the used in the printing process z. B. trained as a plate cylinder

With its printing form or with its printing plate, the printing form cylinder transfers a specific printing ink to a printing blanket in each case. The printing inks used are i. d. To R. premixed, especially custom special colors that are tuned in terms of their respective Verdruckbarkeit in a special way to the material of the hollow body to be printed, depending on whether a surface z. B. of aluminum, a tinplate or a plastic is printed. In a preferred embodiment of a device for printing or for decoration of each z. B. a cylindrical surface having hollow bodies is a printing ink of the

Printing form or the printing plate provided on the lateral surface of the respective hollow body transmitting device. This ink transferring device is z. B. formed as a rotating about a preferably horizontal axis of rotation segment wheel, wherein at the periphery of this segment wheel, ie, along its circumference, one behind the other preferably arranged more blankets or at least can be arranged. The ink transferring device can be used as an alternative to Depending on the printing method used, the segment wheel may also be designed as a decoration drum or as a blanket cylinder or as a transfer cylinder, which are rotatable in each case about a respective axis of rotation, at least during printing. The arrangement of the blankets on the circumference of the segment wheel z. B. in that the blankets on the circumference of the segment wheel each z. B. are attached by a cohesive connection, preferably by gluing. The preferably a plurality of printing plate cylinders or plate cylinders are each set radially to the printing blankets arranged on the circumference of the respective segment wheel or at least can be set. In a particularly preferred embodiment of a device for printing or for decoration of a respective z. B. cylindrical surface having hollow bodies is arranged along the circumference of the segment wheel in a row a larger number of blankets, as are each provided to the segment radially radially employed or at least adjustable pressure plate cylinder or plate cylinder. The preferably carousel-like printing ink-transferring device, in particular the segment wheel has a diameter z. B. from 1,500 mm to 1,600 mm, preferably about 1 .520 mm to 1525 mm, and has at z. B. eight associated printing forme cylinders or plate cylinders at its periphery

in succession z. B. twelve blankets. The surface of each printing plate is preferably formed with a greater hardness than the hardness of the respective

Surface of the blankets. The surface of the blankets is preferably flat, d. H. formed without a profiling. In an operating condition in which the at the

Printing process involved printing plate cylinder or plate cylinder respectively to the

Blankets of the rotationally driven segment wheel are employed radially, roll the respective printing plates of this plate cylinder or the respective pressure clichés of these plate cylinder on the moved with the segment wheel blankets, wherein the pressure plates at least their pressure relief each z. B. 0.2 mm to 0.25 mm deep into the respective blanket and thereby produce in the respective Drucktuck extending in the axial direction of the segment wheel flattening, ie a roller strip. An intensity of the flattening is z. B. before or at the beginning of a Printing process z. B. by means of a remote control by adjusting a force exerted by the respective printing plate cylinder or plate cylinder on the relevant blanket of the segment wheel contact pressure adjustable or is set.

The example to be printed hollow body, z. B. the to be printed

Secondary doses, z. Example by means of a hollow body to be printed preferably along at least a portion of a circular path, d. H. a circular arc around one

Rotation axis transporting transport device, preferably by means of a Zuführrades, in particular by means of a Mandrel wheel in a continuous

Movement or in a set clock to at least one of the

Device for printing in each case a lateral surface of hollow bodies belonging printing units introduced and thus transported in a printing area of at least one of these printing units. For example, the hollow body to be printed by means of z. B. designed as feed wheel transport device to each at least one of z. B. arranged on the segment wheel arranged blankets, or to be printed hollow body by means of this transport device each directly and directly, d. H. without the help of a z. B. formed as a segmented wheel

Ink transfer device transported in the respective printing area of at least one of these printing units, which is the case when the relevant printing unit in a direct printing method, eg. B. prints in an inkjet printing process.

The like. B. the segment also about a preferably horizontal axis rotating feed wheel or mandrel has concentric with its circumferential line in preferably equidistant distribution more, z. B. 24 or 36 holder z. B. each in the form of a cantilevered from an end face of the Mandrel wheel mandrel or a spindle, wherein each holder of each one of the hollow body to be printed is held or at least can be held. A trained as Mandrelrad transport device is sometimes referred to as a turntable with spindles. A Mandrelrad is z. As described in EP 1 165 318 A1. A description of suitable Holder, spindles or mandrels can be found z. In WO 201 1/156052 A1. In the following, each mandrel is referred to briefly as a mandrel. A longitudinal axis of each mandrel is directed parallel to the axis of rotation of the Mandrel wheel. In the case of each z. B. designed as a Zweiteildose to be printed hollow bodies, each of these hollow body z. B. by means of a conveyor, for. B. a belt conveyor to the z. B. introduced as Mandrelrad transport device and there at a transfer station z. B. sucked by suction on one of the mandrels of Mandandrades and then held by the mandrel concerned, while designed as Mandrelrad transport device to the respective hollow body to be printed z. B. to the occupied with at least one blanket segment wheel and thus transported towards at least one of the printing units or in an alternative embodiment z. B. transported without segment wheel directly to at least one of the printing units. I. d. R. be supplied to the mandrel with the conveyor in rapid succession sequentially a larger amount to be printed hollow bodies. Such

Conveyor is z. As described in EP 1 132 207 A1.

Between an inner wall of the respective hollow body to be printed and the surface of the respective mandrel of the Mandrelrades is preferably a gap with a width of z. B. 0.2 mm, so that the hollow body to be printed is not held by a pressure on the respective mandrel. Each thorn is z. B. rotatable by means of a motor about its respective longitudinal axis and in particular adjustable to a certain peripheral speed, so that each held by a mandrel to be printed hollow body in addition to the rotation of the Mandrel wheel by a

independently executed by the mandrel or at least executable rotation is rotatable. The slippage of the hollow body to be printed on one of the mandrels of Mandandrades preferably takes place during a standstill phase of the respective mandrel, the mandrel in question during its stoppage phase does not perform rotational movement about its own longitudinal axis. The occupation of each mandrel with a hollow body to be printed is preferably checked, for. B. contactless with a sensor. At a lack of occupancy of a mandrel with a hollow body to be printed is the Mandrelrad z. B. such that a contact of the respective free mandrel is reliably avoided with a blanket of the segment wheel.

To be printed Zweiteildosen be before their delivery z. B. to mandrel in a mandrel wheel upstream processing station from a Ronde z. B. deep-drawn. In another processing station, each edge of its box is trimmed at its open end. Each Zweiteildose is z in other processing stations. B. washed, her interior in particular washed out. Optionally, the z. B. also designed as a Zweiteildose hollow body painted in a painting. At least the outer surface of each Zweiteildose z. B. primed, especially with a white primer. After printing on its lateral surface Zweiteildose of their respective holder z. B. on mandrel z. B. removed by compressed air or by a preferably switchable magnet and fed to at least one mandrel downstream of the processing station, z. B. an optionally further painting station for painting the outer lateral surface of each printed second can and / or an edging station. The printed Zweiteildosen go through in particular a dryer, z. B. one

Hot air dryer to cure the at least one applied to their respective lateral surface ink.

The printing process for printing in particular the respective lateral surface of z. B. held on the Mandrelrad hollow bodies, in particular Zweiteildosen, begins with the fact that all of the printing on the respective outer surface of the hollow body to be printed image required in each case z. B. from the respective printing plate of z. B. applied to the segment wheel plate cylinder are applied to the same of one of the circumference of the segment wheel blankets. The printing blank dyed in this way with all the required printing inks then transfers in contact with contact between the blanket and the lateral surface of the respective blanket imprinting hollow body these printing inks simultaneously on the lateral surface of this hollow body during a single revolution of the on one of the mandrels of

Mandrel wheel held to be printed hollow body around its own longitudinal axis. During the transfer of the printing inks from the blanket to the lateral surface of the hollow body of the z. B. held by one of the mandrels Mandandrades to be printed hollow body with an absolute same circumferential speed as the concerned z. B. arranged on the circumference of the segment wheel blanket. The respective peripheral speeds of the hollow body and blanket or segment wheel are therefore synchronized with each other, wherein the z. B. on one of the mandrels of the

Mandrel wheel held to be printed hollow body z. B. starting from its first contact point with the relevant blanket during the rolling of its lateral surface over a distance from the first z. B. 50 mm from the peripheral length of the blanket from its stoppage in particular until reaching the peripheral speed z. B. the segment wheel is accelerated accordingly. The segmental wheel carrying the relevant printing blanket accordingly gives the z. B. at the respective mandrel of the Mandrel wheel to be set peripheral speed. Also, the peripheral speed of the printing plate-carrying printing forme cylinder or the pressure plate bearing

Plate cylinder is or is preferably a function of the

Peripheral speed z. B. the segment wheel set. The Mandrel and the Segmentrad are z. B. driven by a same central machine drive and optionally mechanically z. B. coupled together via a gearbox. Alternatively, the Mandrel and the Segmentrad are each driven individually by a separate drive and z. B. controlled by a control unit in their respective rotational behavior.

In particular, with reference to the previously described apparatus for printing or for decoration in particular of a respective z. B. cylindrical surface

having hollow bodies are exemplified still different

Details explained with reference to the aforementioned six figures. The following However, individual modules explained can also be used on or in other printing machines or printing units than in the preferred example discussed here by way of example

Embodiment.

Fig. 1 shows in a schematic representation simplified and exemplified a generic device for printing or for decoration in particular in each case a preferably cylindrical lateral surface having hollow bodies 01, z. B. Secondary boxes 01, said hollow body 01 with a conveyor z. B. sequentially the z. B. as a rotating or at least rotatable Zuführrad, in particular as

Mandrelrad 02 trained transport device supplied and there at this

Transport device are each held individually on a holder. Hereinafter, due to the selected embodiment for the printing press or the

Apparatus for printing on hollow bodies assumed that this

Transport device is preferably designed as a Mandrelrad 02. With the

Mandrelrad 02 preferably acts an ink transferring device, eg. B. a rotating or at least rotatable Segmentrad 03 together, along whose or its circumference several printing blankets are arranged one behind the other. In association with the example mentioned Segmentrad 03 along the circumference several radially to this Segmentrad 03 employed or at least adjustable pressure plate cylinder 04, in particular plate cylinder 04 is provided, on the respective lateral surface of this plate cylinder 04 and plate cylinder 04 each have a printing plate, in particular a printing plate is arranged , This pressure plate is particularly suitable for carrying out a high-pressure process. Each of the printing forme cylinder 04 or

Plate cylinder 04 is supplied for coloring its printing plate or its printing plate by means of an inking unit 06 each have a specific ink. In the following, it is assumed by way of example that the printing form cylinders 04 are each designed as a plate cylinder 04 carrying at least one printing plate. Fig. 2 and 3 show a simplified schematic representation of some details of each cooperating with a plate cylinder 04 inking unit 06, which z. B. for use in the device shown in Fig. 1 for printing or for decoration in particular of a preferably cylindrical lateral surface having hollow bodies 01 is provided. The inking unit 06 proposed here has for the color transport from a paint reservoir to the respective plate cylinder 04 advantageously a very short, ie consisting of only a few, preferably a maximum of five rolls, in particular two-roll compactor. In the case of the twin-roller compactor, this compactor consists of only one single roller

Ink roller 07 and a preferably designed as an anilox roller 08 inking roller 08. An inking unit 06 with a maximum of five rolls compactor belongs to the genus of short inking.

Fig. 2 shows an example of a (short) inking unit 06 with a two-roll compactor in a first operating position, in which the inking roller 07 and the anilox roller 08 employed each other, employed the inking roller 07 to the plate cylinder 04 and also the plate cylinder 04 radially to the ink from the plate cylinder 04 to the lateral surface of the respective hollow body 01 transmitting device, in particular to the segment 03 are employed. Fig. 3, however, shows the inking unit 06 shown in FIG. 2, a second operating position in which the inking roller 07 and the anilox roller 08 from each other parked, the inking roller 07 from the plate cylinder 04 and also the plate cylinder 04 from the ink-transferring device, in particular are parked by the segment wheel 03. On the arrival and

Shutdown mechanism will be discussed later.

The preferably designed as a plate cylinder 04 printing forme cylinder 04 and preferably designed as an anilox roller 08 inking roller 08 are z. B. each independently by a motor 1 1; 12 rotatably driven, in particular in the preferred used in Figs. 2 and 3 illustrated inking unit 06, wherein the relevant engine 1 1; 12 z. B. in its respective speed and / or angular position of a z. B. electronic control unit in particular regulated or at least regulated. The z. B. trained as segment wheel 03 ink transferring device is z. B. driven by a separate drive or by a central machine drive rotatively. The inking roller 07 is or is rotationally driven by the anilox roller 08 by friction. In the preferred embodiment, an outer diameter d07 of the inking roller 07 and an outer diameter d04 of the at least one printing plate, in particular at least one printing plate bearing plate cylinder 04 are equal in magnitude. On the lateral surface of the plate cylinder 04 at least one printing plate is arranged or at least arrangeable, so that in the embodiment with the same outer diameters d04; d07 of the printing plate bearing

Plate cylinder 04 and the inking roller 07 each have an identical circumferential length. In the preferred embodiment, in the first operating position of the cooperating with the plate cylinder 04 inking unit 06, in which the inking roller 07 and the anilox roller 08 set against each other, the inking roller 07 to the

Plate cylinder 04 employed and also the plate cylinder 04 are employed on the segment 03, at least the respective centers of the plate cylinder 04, the

Ink roller 07 and the anilox roller 08 along a same line G arranged. For detecting the rotation of the inking roller 07 is a

Detection device z. B. provided in the form of a rotary encoder, said encoder is particularly rigidly connected to a shaft of the inking roller 07. The signal generated by the rotary encoder during a rotation of the inking roller 07 is used by the control unit, the rotational speed and / or angular position of

To set inking roller 07 by means of the rotation of the anilox roller 08 such or nachzuführen in case of need such that a synchronization between the plate cylinder 04 and the inking roller 07 adjusts or is set so that the

Peripheral speed of the inking roller 07 with the peripheral speed of the plate cylinder 04 within previously defined allowable tolerance limits

matches. To achieve this goal can be provided that the control unit preferably during the adjustment phase performed by the

Circumferential speed of the anilox roller 08 sets such that this relative to the peripheral speed of the plate cylinder 04 in particular briefly - and thus not permanently - has a lead or lag. Due to the design of plate cylinder 04 and inking roller 07 each with the same amount

Circumferential length and the adjustment of the synchronism between the plate cylinder 04 and the inking roller 07 is the print quality detrimental effect of

Stenciling largely avoided. The drive concept described here with a friction-driven inking roller 07 also has the advantage that for the

Inking roller 07 a separate drive is not required, which saves costs and also because of the simpler mechanical design z. B. facilitates replacement of the inking roller 07 during maintenance or repair work.

The inking roller 07 has in its preferred embodiment a closed, preferably rubberized lateral surface. The preferably designed as an anilox roller 08 inking roller 08 has a z. B. coated with a ceramic

Shell surface, wherein in the ceramic layer a Haschur of z. B. 80 lines per centimeter axial length of the anilox roller 08 or a cup structure is formed. In order to allow the screen roller 08 with each of their revolutions each a feed of the largest possible amount of ink in the roller train of the inking unit 06, the outer diameter d08 of the anilox roller 08 is preferably formed larger than the outer diameter d07 of the inking roller 07. The anilox roller 08 should therefore have the largest possible delivery volume. In Fig. 2, the respective direction of rotation of the segment wheel 03, the plate cylinder 04, the

Ink roller 07 and the anilox roller 08 each indicated by a direction of rotation arrow.

In the preferred embodiment, at least the inking roller 08, preferably designed as an anilox roller 08, has a tempering device with the aid of which Jacket surface of this roller is tempered. The tempering of the anilox roller 08 operates z. B. with a introduced into the interior of the anilox roller 08 tempering, wherein the tempering z. B. is water or another liquid coolant. With the tempering of the anilox roller 08, the delivery volume of the anilox roller 08 can be influenced, since thus the viscosity of the inking unit 06 to be transported

Printing ink is affected. The delivery volume of the anilox roller 08 and the viscosity of the ink to be transported by the ink 06 in turn ultimately affect a color density of the aufzutragenden on the cylindrical surface of the hollow body 01 to be printed ink. A thickness of a to be applied on the cylindrical surface of the hollow body 01 to be printed, formed by the ink color film is z. B. at about 3 μηη.

The ink reservoir of the inking unit 06 is z. B. as formed in conjunction with the anilox roller 08 chamber doctor blade system 09. Advantageously, form in this chambered doctor blade system 09 at least one ink tray, an axially parallel to the anilox roller 08 employees or at least adjustable squeegee and preferably also a pump for conveying the ink a single unit. This is this

Chamber doctor blade system 09 in the inking unit 06, d. H. on a frame of the inking unit 06 preferably only one side z. B. held by a suspension or stored, so that this unit in a simple manner after its release from the frame of the inking unit 06 laterally, d. H. by an axially parallel to the anilox roller 08 directed movement, z. B. by pulling on a arranged on this unit handle from the inking unit 06 removable and thus interchangeable. This assembly of the chambered doctor blade system 09 preferably forms a cantilever arm on a side frame of the inking unit 06. FIG. 4 shows a perspective view of the chambered doctor blade system 09 formed as a single structural unit in cooperation with the anilox roller 08 of the inking unit 06.

After the anilox roller 08 ink has absorbed from the ink reservoir, ie in particular from the chambered doctor blade 09, the anilox roller 08 transports them Printing ink directly and directly or through other rollers belonging to the inking unit 06 compactor to the preferably only one inking roller 07. In a direction of rotation of the anilox roller 08 employed to the anilox roller 08

Chamber doctor blade 09 subsequent area between the chambered doctor blade 09 and the inking roller 07 is preferably a rider roll 13 employed on the anilox roller 08 or at least adjustable to improve uniformity of ink application on the anilox roller 08 and their color transport. The rider roll 13 is arranged axially parallel to the anilox roller 08. The rider roll 13 is not considered to belong to the roller train of the inking unit 06 because it does not transfer ink from the anilox roller 08 to another roller. The of the anilox roller 08 z. B. by friction rotatably driven rider roller 13 has z. B. a rubberized jacket surface. The hired on the anilox roller 08 rider roller 13 sucks in their unwinding on the lateral surface of the anilox roller 08 a part of the anilox roller 08 from

Chamber doctor blade 09 recorded ink from the Haschur or the wells of the anilox roller 08 and applies this ink at least partially on the

Lateral surface of the anilox roller 08 formed webs. As a result, the rider roller 13 rolling on the anilox roller 08 causes the anilox roller 08 to deliver a larger quantity of printing ink to the inking roller 07. In another episode is at a z. B. a tempering having anilox roller 08 also improves the effectiveness of controlling the color density, characterized in that the rolling on the anilox roller 08 rider roller 13 contributes to the provision of a larger amount of ink. The rider roller 13 rolling on the anilox roller 08 thus reduces, irrespective of the specific design of the anilox roller 08, d. H. with or without one

Tempering device, both density differences that can be caused by manufacturing tolerances of the anilox roller 08, as well as the risk of visibility of Haschur or wells of the anilox roller 08 on the substrate, ie here on the lateral surface of the hollow body 01 to be printed as a result of at least in places too low paint. In particular, in a very advantageous embodiment of the device for printing hollow bodies is preferably a fixed assignment to at least one, preferably to each plate cylinder, in particular plate cylinder 04 each provided a plate changer 14, with which intended for the particular printing forme cylinder

Printing form or for the particular plate cylinder 04 certain printing plate within z. B. the device concerned for printing or for decoration of a particular cylindrical outer surface having hollow bodies 01 preferably automated, d. H. without intervention by operating personnel

is interchangeable. With this plate changer 14 is intended for this printing form cylinder 04 particular printing form within this device preferably from that side of the respective printing unit ago exchangeable, which is the unit of the

Chamber doctor blade 09 holding side in particular diametrically opposite.

Preferably, the disc changer 14 z. B. in the apparatus for printing hollow bodies on the relevant printing unit in association with the printing forme cylinder 04, which the inking unit 06 with the one-sided unit of the

Chamber doctor blade system 09 has arranged, said plate changer 14 which is for this printing forme 04 certain printing form from that side of the relevant printing unit, which is diametrically opposite to the unit of the chambered doctor blade 09 side, supplied or at least fed.

5 and 6 show a perspective view of a preferred embodiment of a very advantageously designed disk changer 14 in two different

Operating positions for the execution of a very short set-up preferably

automated, reliable and preferably also registerable executable

Plate change or printing plate change. Fig. 5 shows a first operating position, in which axially laterally next to the printing unit on the plate cylinder or plate changer 14 z. B. submitted a printing plate or removed from the disk changer 14. Fig. 6 shows a second operating position, in which immediately before the printing form cylinder or plate cylinder 04 along to this from the plate changer 14 from z. B. a Printed cliché placed directly on the associated plate cylinder 04 or a

Pressure cliché removed from the plate cylinder 04 and can be removed with the plate changer 14 in its first operating position. The disk changer 14 has a particular plane, z. B. table-shaped support surface 16, on which z. B. a arranged on the plate cylinder 04 or to be arranged printing plate can be placed preferably completely. The support surface 16 is preferably linear in particular along the axis of rotation of the associated printing forme cylinder or

Plate cylinder 04 between at least two defined positions back and

arranged movable. In a laterally located next to the printing unit first position of the support surface 16 takes this movable, in particular movable

Support surface 16 of the disc changer 14, a first operating position, in a position immediately before the plate cylinder or plate cylinder 04 along this second position of the support surface 16 its second operating position. In the first operating position, the support surface 16 of the disc changer 14 is at least partially in front of an end face of the respective printing forme cylinder or

Plate cylinder 04. In the second operating position, the support surface 16 of the plate changer 14 is preferably at least partially below the lateral surface of the plate cylinder or plate cylinder 04. The movement of the support surface 16 of the plate changer 14 is z. B. along a longitudinal to the printing forme cylinder or

Plate cylinder 04 arranged Traverse 17. The support surface 16 of the disc changer 14 thus has a reference to the respective plate cylinder or plate cylinder 04 axial travel. To the first or the second operating position of

Plate changer 14 defining positions is the movement of the support surface 16 z. B. each bounded by a stop. At least the carrier of the concerned

Druckklischees is z. B. formed by a particular running using registration marks trimming such that the relevant printing plate can be arranged in register on the support surface 16 of the disk changer 14. For this purpose, at least two at a right angle to each other arranged edges of the carrier of the respective printing plate in a preferably only punctiform Touch contact brought to arranged on the support surface 16 of the disc changer 14 attacks, wherein a first edge of the carrier of the respective

Pressure clichés abuts a first stop and an orthogonal to the first edge second edge of the carrier of the respective printing plate to a second stop. In this case, one of these two stops in its position is preferably changeable and in particular adjustable. By adjusting the variable in its position stop z. B. the relevant printing plate in register aligned. The adjustment of the variable in its position stop can be done manually or automatically by a control unit. Since the printing plate is supplied to the relevant plate cylinder 04 in register, is on the plate cylinder 04 z. B. no centering pin and no other register device provided. The first stop and / or the second stop are preferably as one on each of the

Support surface 16 of the plate changer 14 is formed vertically standing cylindrical or conical machine element, preferably each as a standing on the support surface 16 of the disc changer 14 register pin.

The plate changer 14 has in its preferred embodiment except the support surface 16 for receiving a z. B. the plate cylinder 04 in particular to be supplied in register pressure cliche z. As a subject, in which z. B. a detached from the plate cylinder 04 printing plate can be stored. A z. B. by means of its carrier in particular magnetically held on the lateral surface of the respective plate cylinder 04 printing plate z. B. by means of a tool guided tangentially to the printing form, for. B. by means of a between the support of the printing plate and the

Lateral surface of the relevant plate cylinder 04 guided spatula of the

Lateral surface of the relevant plate cylinder 04 is lifted or at least can be lifted from there. The lifted off from the lateral surface of the respective plate cylinder 04 one end of the respective printing plate is introduced by rotation of the relevant plate cylinder 04 in the relevant compartment of the plate cylinder 04. By a continuation of this rotation of the respective plate cylinder 04 is then the entire of the lateral surface of the relevant plate cylinder 04 dissolved printing plate inserted into the relevant tray of the disc changer 14.

A printing plate which is preferably to be supplied in register with the relevant plate cylinder 04 is held on the bearing surface 16 of the plate changer 14, in particular after its register-oriented alignment, by a magnetic holding force. It is at least one stamp, preferably two in the longitudinal direction of the respective plate cylinder 04 spaced pistes each provided with a magnetic holding force oppositely directed direction of action, said effective direction to the support surface 16 of the disk changer 14 z. B. is directed substantially orthogonal. With this at least one stamp at least one of the relevant plate cylinder 04 facing the end of the bearing surface 16 of the plate changer 14 held printing plates from this support surface 16 releasably and due to a lifting movement of the at least one punch to the relevant plate cylinder 04 can be transferred. The at least one stamp is z. B. pneumatically actuated or at least so actuated. For holding the printing plate or the printing plate on the support surface 16 of the plate changer 14 or on the lateral surface of the plate cylinder 04 each magnets are used, these magnets are preferably each formed as a permanent magnet. The above-described embodiment of the plate cylinder 04 has the advantage that a conveyor for transferring the printing plate to the respective plate cylinder 04 or for removing the printing plate of the respective plate cylinder 04 is not required and the disc changer 14 can therefore be realized very inexpensively. In particular, a plate change with the disk changer 14 described above can be carried out automatically.

The respective employment and / or shutdown of printing forme cylinder or plate cylinder 04, inking roller 07 and / or anilox roller 08 and / or an adjustment of each of them exerted contact pressure takes place with an example in FIGS. 2 and 3 on and off mechanism, the will now be described in more detail. In the Preferably, the plate cylinder 04 or plate cylinder is mounted at both ends on a load arm of a force arm and the load arm preferably one-sided first lever assembly 18, wherein the power arm and the angle fixed to the power arm arranged load arm of this first lever assembly 18 together about an axis parallel to the plate cylinder 04 directed first axis of rotation 19 are pivotable. In an operative connection to the power arm of the first lever assembly 18 is for exerting a torque about the first axis of rotation 19, a preferably controllable by a control unit first drive 21 z. B. arranged in the form of a hydraulic or pneumatic working cylinder, wherein upon actuation of this first drive 21 depending on the direction of action of the load arm of this first lever assembly 18 arranged printing form cylinder or plate cylinder 04 either of a

Blanket z. B. the segmented wheel 03 is turned off or employed on selbiges. To limit the printing forme cylinder or plate cylinder 04 against the relevant blanket z. B. the segment wheel 03 applied contact force, for example, a first stop 22 is provided for the power arm of the first lever assembly 18, by means of which a by the pivotal movement of the plate cylinder or plate cylinder 04 against the Segmentrad 03 zurückgelegter path is limited. With the first drive 21, the pressing force exerted by the plate cylinder or plate cylinder 04 against the segment 03 is adjustable.

In the preferred embodiment, the inking roller 07 is in particular at both ends of a load arm one consisting of a power arm and the load arm

Preferably, one-sided second lever assembly 23 is mounted, wherein the power arm and the load arm of this second lever assembly 23 are pivotable together about the axially parallel to the plate cylinder 04 directed first axis of rotation 19. Likewise, in the preferred embodiment, the z. B. trained as an anilox roller 08

Ink roller 08 in particular mounted at both ends on a load arm of an existing from a power arm and the load arm preferably one-sided third lever assembly 24, wherein the power arm and the load arm of this third lever assembly 24th together about an axis parallel to the anilox roller 08 directed second axis of rotation 26 are pivotally, wherein the second axis of rotation 26 of the third lever assembly 24 is disposed on the second lever assembly 23. In this case, the second axis of rotation 26 is preferably formed stationary on the second lever arrangement 23. On the load arm of the first lever assembly 18 is a in its operation on the power arm of the second

Lever assembly 23 acting preferably controllable second drive 27 is arranged, by means of which the inking roller 07 depending on the effective direction of the second drive 27 to the plate cylinder 04 can be adjusted or deactivated. On the load arm of the second lever assembly 23 is a in its operation on the power arm of the third

Lever assembly 24 acting preferably controllable third drive 28 arranged by means of which the anilox roller 08 preferably together with the chambered doctor blade 09 depending on the direction of action of the third drive 28 to the inking roller 07 engageable or offset from this. The second drive 27 and / or the third drive 28 are each z. B. also formed in the form of a hydraulic or pneumatic working cylinder. It can be provided that the second drive 27 and the third drive 28 z. B.

be operated together and preferably also simultaneously or at least be actuated. The pivoting movement of the load arm of the second lever assembly 23 is z. B. limited by a preferably adjustable, in particular adjustable by an eccentric first stop system 29, whereby also from the

Inking roller 07 against the printing plate cylinder or plate cylinder 04 exerted contact force is limited or at least limited. The pivoting movement of the load arm of the third lever arrangement 24 is z. B. limited by a preferably adjustable, in particular adjustable by an eccentric second stop system 31, whereby the force exerted by the anilox roller 08 against the inking roller 07 contact pressure is limited or at least limited. FIG. 2 shows, by way of example, a first operating state in which the first drive 21 and the second drive 27 and the third drive 28 are in each case unactuated or in their idle state, as a result of which

Anilox roller 08 to the inking roller 07 and the inking roller 07 to the printing plate cylinder or plate cylinder 04 and the plate cylinder or plate cylinder 04 are each employed on the segment wheel 03. Fig. 3 shows an example of a second operating state in which the first drive 21 and the second drive 27 and the third drive 28 are respectively actuated or in their working state, whereby the anilox roller 08 of the inking roller 07 and the inking roller 07 from the plate cylinder or plate cylinder 04 and the plate cylinder or plate cylinder 04 are parked by the segment 03 each. The respective force arm and / or load arm of the three aforementioned lever arrangements 18; 23; 24 is or are each z. B. formed as a pair of opposing lever rods or side frame walls, between which in the respective above-described assignment of either the plate cylinder or

Plate cylinder 04 or the inking roller 07 or the anilox roller 08 is arranged. The three aforementioned lever arrangements 18; 23; 24 are each arranged in different spaced-apart vertical planes, so that they do not interfere with each other in their respective pivoting.

LIST OF REFERENCE NUMBERS

01 hollow body; Two-piece can

02 Mandrel wheel

03 Segmented wheel

04 printing form cylinder; Plate cylinder 05

06 inking unit

07 inking roller

08 inking roller; anilox roller

09 chambered doctor blade system

10

engine

12 engine

13 rider roll

14 plate changers

15

16 contact surface

17 traverse

18 lever arrangement, first

19 axis of rotation, first

20

21 drive, first

22 stop, first

23 lever arrangement, second

24 lever arrangement, third

25

26 axis of rotation, second

27 drive, second 28 drive, third

29 stop system, first 30

31 stop system, second

d04 outer diameter d07 outer diameter d08 outer diameter

G straight

Claims

claims

1 . Inking unit (06) of a printing unit, wherein the inking unit (06) an ink from a color reservoir receiving anilox roller (08) and one to a

Compressor cylinder (04) of the printing unit employed inking roller (07), wherein in an in the direction of rotation of the anilox roller (08) with this anilox roller (08) cooperating ink reservoir subsequent area between the ink reservoir and the inking roller (07) axially parallel to the anilox roller (08) Rider roller (13) is arranged, wherein the rider roller (13) is set against the anilox roller (08), characterized in that the

Rider roller (13) of the anilox roller (08) is rotationally driven by friction, wherein the inking roller (07) of the anilox roller (08) is rotationally driven by friction, wherein the plate cylinder (04) and the anilox roller (08) each of a motor (1 1, 12) are driven independently rotary.

2. inking unit (06) according to claim 1, characterized in that the rider roll (13) has a rubberized lateral surface.

3. inking unit (06) according to claim 1 or 2, characterized in that a

Outer diameter (d07) of the inking roller (07) and an outer diameter (d04) of the printing forme cylinder (04) occupied by at least one printing plate are equal in magnitude and / or that an outer diameter (d08) of the

Anilox roller (08) is formed larger than an outer diameter (d07) of the inking roller (07).

4. inking unit (06) according to claim 1 or 2 or 3, characterized in that the anilox roller (08) has a tempering their lateral surface temperature control.

5. inking unit (06) according to claim 1 or 2 or 3 or 4, characterized in that the anilox roller (08) has a coated with a ceramic shell surface.

6. inking unit (06) according to claim 1 or 2 or 3 or 4 or 5, characterized

characterized in that the anilox roller (08) has on its outer surface a Haschur or a cell structure.

7. inking unit (06) according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized

characterized in that the inking roller (07) has a closed lateral surface.

8. inking unit (06) according to claim 7, characterized in that the

Paint roller (07) has a rubberized lateral surface.

9. inking unit (06) according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, characterized in that the ink reservoir as a in conjunction with the anilox roller (08) acting chamber doctor blade system (09) is formed.

10. inking unit (06) according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that the motor (1 1) of the plate cylinder (04) and the motor (12) of the anilox roller ( 08) are each regulated in their respective speed or at least controllable.

1 1. Apparatus for printing hollow bodies, wherein said device comprises an inking unit (06) according to at least one of claims 1 to 10.