EP1754603B1 - Device for printing on hollow articles - Google Patents

Device for printing on hollow articles Download PDF

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Publication number
EP1754603B1
EP1754603B1 EP05018119A EP05018119A EP1754603B1 EP 1754603 B1 EP1754603 B1 EP 1754603B1 EP 05018119 A EP05018119 A EP 05018119A EP 05018119 A EP05018119 A EP 05018119A EP 1754603 B1 EP1754603 B1 EP 1754603B1
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EP
European Patent Office
Prior art keywords
spindle
printing
machine according
drying
mounting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05018119A
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German (de)
French (fr)
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EP1754603A1 (en
Inventor
Helmut Aichele
Martin Frank
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.)
Hinterkopf GmbH
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Hinterkopf GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hinterkopf GmbH filed Critical Hinterkopf GmbH
Priority to DE502005003479T priority Critical patent/DE502005003479D1/en
Priority to ES05018119T priority patent/ES2300912T3/en
Priority to EP05018119A priority patent/EP1754603B1/en
Priority to US11/492,091 priority patent/US20070039490A1/en
Publication of EP1754603A1 publication Critical patent/EP1754603A1/en
Application granted granted Critical
Publication of EP1754603B1 publication Critical patent/EP1754603B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0872—Machines for printing on articles having essentially cylindrical surfaces

Definitions

  • a suitable for printing sleeves, tubes, cans or other hollow body machine of this kind is from the EP 1 468 827 A1 out.
  • the machine contains a rotation-driven spindle plate, which, distributed in the direction of rotation, is equipped with a plurality of receiving spindles, onto which the hollow bodies to be printed are attached.
  • the spindle plate performs a clocked movement, wherein the receiving spindles are positioned with the hollow bodies sitting on them successively in successively placed printing stations and drying stations.
  • Each printing station contains a rotary screen printing unit, by means of which a direct inking takes place on the hollow body currently being placed in the respective printing station.
  • the drying stations each contain a radiation dryer, which allows a short drying time.
  • the printing stations and drying stations are arranged alternately, wherein a drying station follows in the direction of rotation of the spindle plate on each printing station.
  • the rotary screen printing units are located radially outside and the radiation dryer radially inside the spindle track curve.
  • the present invention is therefore an object of the invention to provide a machine of the type mentioned, which provides a precise and high-quality printing result.
  • a respective printing station and a drying station are combined in pairs to form a combined printing and drying station, in each of which a rotary screen printing unit and a radiation dryer, lying on opposite sides of the spindle track curve, in the radial direction of the spindle plate, which are designed so that they can simultaneously act on a seated on the currently located in the associated printing and drying station receiving hollow body.
  • the inking is suitably controlled by a movable squeegee arranged in the rotary screen, which can be optionally positioned in an operative position abutting the inner surface of the screen wall of the rotary screen or an inactive position lifted therefrom. Since a certain period of time can not be exceeded for this switching over, in many cases it will not be possible to avoid that the rotary screen comes into contact with an already printed surface of the hollow body. This could lead to color blurring under conventional circumstances. However, since the ink is already dried, such impairments can not occur in the present case
  • Another effect of the invention is that the occupied for printing and drying the circumferential length of the spindle plate can be reduced compared to the prior art.
  • all the rotary screen printing units and, on the other hand, all the radiation dryers are located on the same side of the spindle track curve. Since the rotary screen printing units generally have slightly larger dimensions than the radiation dryers, it is advantageous here to arrange the rotary screen printing units radially outside and the radiation dryer radially inside the spindle track curve.
  • the distance between each successive combined printing and drying stations expediently corresponds to twice the rotational cycle of the spindle plate. Since a certain distance between successive printing and drying stations can not be fallen below due to the dimensions of the rotary screen printing and the radiation dryer usually a tight distribution of recording spindles can nevertheless be made in this way, which supplied the usually small distances of the spindle plate Sleeve bodies takes into account. Nevertheless, it would also be possible in principle to adapt the rotational cycle of the spindle plate to the distance between two successive printing and drying stations.
  • the take-up spindles are rotationally driven at least during their stay in a printing and drying station.
  • a rotary drive can also be outside the printing and drying stations, at least in phases, given.
  • the shielding means have shielding elements, which are arranged between each adjacent receiving spindles directly on the spindle plate and thus join its clocked rotational movement. It is unnecessary in this way consuming and demanding for the operation of a lot of time mechanics to place shielding alternately inside and outside of the intermediate receiving spindles intermediate space.
  • the machine will be controlled so that within a respective printing and drying station after completion of the printing process with a further rotating recording spindle a pure drying process takes place, so that the applied printed image is dried to the end. If a circulation of the hollow body is not sufficient to achieve the desired drying result, the receiving spindle can be rotated after completion of the printing process optionally still while the radiation dryer is running until the desired degree of dryness is reached.
  • the radiation dryers are preferably designed as UV dryers or IR dryers and emit ultraviolet radiation (UV radiation) or infrared radiation (IR radiation) as drying radiation.
  • the printing press designated in its entirety by reference numeral 1 contains, inter alia, an infeed conveyor 2 and a discharge conveyor 3, which are each assigned to the peripheral area of a spindle plate 4 which can be clocked in rotation by a drive not shown in detail.
  • an infeed conveyor 2 and a discharge conveyor 3 which are each assigned to the peripheral area of a spindle plate 4 which can be clocked in rotation by a drive not shown in detail.
  • the spindle plate 4 may be cyclically driven to rotate about an axis of rotation 6 with a direction of rotation 7 indicated by a jagged arrow become.
  • the axis of rotation 6 is aligned horizontally.
  • the spindle plate 4 is rotatably mounted on a hub 9 on the machine frame 45.
  • the spindle plate 4 is equipped with a plurality of spaced apart in the rotational direction 7 at a spacing spindle units 8, each containing a receiving spindle 12 with the axis of rotation 6 parallel spindle axis 13.
  • Each spindle unit 8 has a bearing device 14, which is arranged in the region of the outer edge of the disk-shaped plate body 15 of the spindle plate 4 and starting from the associated receiving spindle 12th protrudes at the front of the plate body 15. All receiving spindles 12 are located at the front of the plate body 15, wherein they are arranged distributed at equal intervals along the circumference of the plate body 15.
  • holding means not shown in more detail are assigned to a respective receiving spindle 12 which operate, for example, on the basis of magnetic forces or on the basis of negative pressure.
  • an underpressure channel which is connected to a vacuum source, terminates at the front on each receiving spindle 12 at the front, in order to hold the plugged-on hollow body 4 by vacuum.
  • Each take-up spindle 12 is non-rotatably coupled to a wheel or roller-shaped drive element 16, which protrudes on the rear side of the plate body 15.
  • the receiving spindles 12 pass through a spindle path curve 17 which is concentric with the axis of rotation 6.
  • a coating device may be arranged, in which the printed hollow bodies 5 are finally overcoated with a protective lacquer, in particular a clear lacquer.
  • the receiving spindles 12 including the hollow body 5 seated on them are continuously rotated about the spindle axis 13.
  • the printing machine 1 includes one or more, in particular fixedly arranged drive units 24, with which the drive elements 16 of the take-up spindles 12 are drivingly coupled at least while remaining in the inking zone 22, so that the take-up spindles 12 during the entire printing and drying on them seated hollow body 5 rotate continuously with the same direction about the spindle axis 13.
  • inking zone 22 there are several distributed along the spindle track 17 combined printing and drying stations 25, in each of which the functions of a printing station and a drying station are combined.
  • Each such printing and drying station 25 is equipped with a rotary screen printing unit 27.
  • Each rotary screen printing unit 27 has a housing 28 with a hollow cylindrical sieve rotatably mounted thereon, which is driven during its operation to a rotational movement about its Siebachse 32 and therefore is referred to as a rotary screen 33.
  • each rotary screen printing unit 27 is equipped with its own rotary drive device 34.
  • the rotary screens 33 are aligned so that their longitudinal sieve axes 32 are arranged parallel to the spindle axes 13.
  • the rotary sieves 33 are placed so that, with respect to the spindle axes 13, they lie at the same axial height with that region of the receiving spindle 12 which can be equipped with a hollow body 5.
  • a receiving spindle 12 is positioned in a printing and drying station 25 by appropriate rotational positioning of the spindle plate 4, the circular cylindrical screen wall 39 of the rotary screen 33 of the associated rotary screen printing unit 27 on the outer circumference of sitting on the respective receiving spindle 12 hollow body 5 can be brought to bear Apply paint to the hollow body 5.
  • the printed image produced in this case is predetermined by a correspondingly perforated wall section 69 of the screen wall 39, through which the printing ink passes.
  • a sieve interior 37 is defined, which via a supply line 36 with the Printing ink is fillable.
  • An arranged in the screen interior 37 squeegee 38 extends in the spindle path curve 17 facing the inking area 42 along the inner surface of the circular cylindrical screen wall 39 and can cause the color is forced through the screen holes during rotation of the rotary screen 33 and on the outer circumference of the in the associated printing station 25 positioned hollow body 5 is applied, on which the rotary screen 33 rolls.
  • the doctor blade 38 extends in the sieve interior 37 parallel to the Siebachse 32 and is adjustable according to double arrow 62 transverse to the Siebachse 32. In the embodiment, the adjustment takes place in the context of a pivoting movement by the doctor 38 is mounted about a parallel to the Siebachse 32 pivot axis 63 with respect to the housing 28 pivotally.
  • the pivoting movement is caused by a firmly connected to the doctor blade 38 actuating arm 64 which runs over a, for example, formed by a roller guide body 65 on a rotationally driven cam track 66 to which it is pressed by a spring means 61.
  • the cam track 66 rotates at the same angular velocity as the associated rotary screen 33 and is rotatably connected to a drive wheel 67 of the rotary drive device 34, which meshes with another drive wheel 68 which is rotatably connected to the rotary screen 33 and causes its rotational movements.
  • control means which cause the doctor blade 38 in the rotation of the rotary screen 33 according to the specification of the cam track 66 occupies either a pressing against the inner surface of the circular cylindrical screen wall 39 effective position or from this inner surface withdrawn inactive position.
  • the diameter of the screen wall 39 is greater than the diameter of the hollow body to be printed 5. In the embodiment, it is twice. Consequently, the screen wall 39 does not require a complete revolution - in the embodiment, a half turn is sufficient - to print the hollow body 5 full extent.
  • the screen wall 39 is therefore perforated only along a peripheral portion whose length substantially corresponds to the circumferential length of the hollow body (perforated wall portion 69).
  • the remaining wall portion 70 is not perforated.
  • the movements of squeegee 38 and rotary screen 33 are coordinated so that the squeegee 38 then takes the operative position when the perforated wall portion 69 passes through the paint application area 42, wherein the previously arranged with minimal distance from the hollow body flexible screen wall 39 radially outwardly and to the Outer circumference of the hollow body 5 is pressed. If the perforated wall section 69 is unrolled on the hollow body 5, the doctor 38 reaches the inoperative position, so that the now non-perforated wall section 70 passing through the ink application area 42 is slightly radially spaced from the hollow body 5 and no more inking takes place.
  • each printing and drying station 25 a different color is applied to the hollow body 5. So that these colors do not run into one another, a drying of the previously applied color takes place before the renewed printing of a hollow body 5 with a further color.
  • a radiation dryer 43 is used, the current in the relevant printing and drying station 25 located hollow body 5 with a high-energy drying radiation irradiated.
  • the radiation is, in particular, ultraviolet radiation (UV radiation) or infrared radiation (IR radiation), so that the radiation dryers 43 are correspondingly designed as UV dryers or IR dryers.
  • the take-up spindles 12 are rotationally driven at least during their stay in the individual printing and drying stations 25, so that full drying can take place, even if the irradiation zone 44 is limited to a portion of the circumference of the take-up spindle 12 or of the hollow body 5 seated thereon.
  • each of the rotary screen printing unit 27 and the radiation dryer 43 are arranged in the radial direction with respect to the axis of rotation 6 of the spindle plate 4 on opposite sides of the spindle track curve 17.
  • the said components lie opposite one another in the radial direction of the spindle plate 4, so that a receiving spindle positioned in the relevant printing and drying station 25 is flanked on diametrically opposite sides by a rotary screen printing unit 27 and a radiation dryer 43.
  • the pairwise combination of printing stations and drying stations to combined printing and drying stations offers the advantage that a sitting on the currently in the station concerned receiving spindle 12 seated hollow body 5 can be simultaneously printed and dried during its rotation. This allows for compact dimensions of the printing press 1 very high processing speeds.
  • the receiving spindles 12 each remain in a printing and drying station 25 at least until at least the entire applied ink has passed through the irradiation area of the radiation dryer 43 during the spindle rotation. It will therefore be appropriate to carry out the control so that, although temporarily a simultaneous inking and drying process takes place - at diametrically opposite areas of the respective hollow body 5 - but that after completion of the printing process, the recording spindle 5 at least as long within the printing and drying station 25 to its longitudinal axis is further rotated until all of the applied paint has passed the still operating jet dryer 43.
  • the radiation dryer 43 are attached to the rotary screen printing units 27 and anchored via this on the frame 45 of the printing machine 1.
  • the rotary screen printing units 27 are held on the machine frame 45 via supports 46, for example.
  • the radiation dryers 43 each contain a radiation source 47, for example a UV lamp or an IR lamp, which is aligned in particular parallel to the receiving spindles 12 is and which is placed so that it is located with a certain distance next to a hollow body 5 to be equipped length of each placed in the printing and drying station 25 receiving spindle 12.
  • the radiation source 47 is surrounded by a reflector 48, which focuses the drying radiation and ensures that it strikes in the desired irradiation zone 44 on the outer circumference of the hollow body 5 positioned there.
  • the measured in the direction of rotation 7 distance between each successive printing and drying stations 25 is dimensioned in the embodiment so that it corresponds to two rotational strokes of the spindle plate 4. However, other distances are possible.
  • the printing machine 1 is expediently provided with screening means 52 which undesirably convert the drying radiation into the area the rotary screen printing 27 prevent.
  • the shielding means 52 preferably comprise shielding elements 53, which are arranged between adjacent receiving spindles 12 and are supported by the spindle plate 4.
  • elongate, plate-shaped shielding elements 53 are provided which are fastened at one end to the plate body 15 and starting from the plate body 15, between in the direction of rotation 7 each adjacent receiving spindles 12, parallel to the receiving spindles 12 free end, projecting forward.
  • the shielding elements 53 expediently have a height which corresponds approximately to the diameter of the receiving spindles 12 and preferably have, at the adjacent receiving spindles 12 facing longitudinal sides, approximately corresponding to the curvature of the receiving spindles 12 curved concave side walls 54th
  • the shielding elements 53 are able to approximately bridge the entire space measured between adjacent receiving spindles 12 measured in the direction of rotation 7.
  • the drying radiation generated by the radiation dryer 43 is thus prevented from passing through this gap and from irradiating the opposite rotary screens 33.
  • the length of the shielding elements 53 expediently corresponds at least to the length of the receiving spindles 12. However, the shielding elements 53 preferably protrude slightly beyond the receiving spindles 12.
  • the outer circumference of the receiving spindles 12 or the hollow body 5 seated thereon can be effectively shielded over a large part of its circumference.
  • Each radiation dryer 43 is expediently also equipped with a protective housing 55, which surrounds that area in which the radiation drying takes place. In this way, a further shielding is achieved in particular also to the adjacent printing and drying stations 25 out.
  • Slit-like passage openings 56 of the protective housing 55 provided on the sides pointing in and counter to the direction of rotation 7 lie on the spindle track curve 17 and have a sufficient cross section to allow the receiving spindles 12 equipped with hollow bodies 5 to rotate in and out of the clocked rotation.
  • the protective housing 55 also has at the rotary screen printing unit 27 radially facing side via a preferably slit-like further opening 71st

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)

Description

Die Erfindung betrifft eine Maschine zum Bedrucken von Hohlkörpern wie Hülsen, Tuben, Dosen oder dergleichen,

  • mit einem getaktet in Rotation versetzbaren, eine horizontale Drehachse aufweisenden Spindelteller, der in seiner Rotationsrichtung mit Abstand aufeinanderfolgende Spindeleinheiten trägt, die jeweils mit einer parallel zu der Drehachse ausgerichteten Aufnahmespindel ausgestattet sind, auf die jeweils ein zu bedruckender Hohlkörper aufsteckbar ist und die bei der Rotation des Spindeltellers eine Spindelbahnkurve durchlaufen,
  • mit mehreren entlang der Spindelbahnkurve verteilten Druckstationen, die jeweils ein Rotationssiebdruckwerk aufweisen, das ein hohlzylindrisches, parallel zu den Aufnahmespindeln ausgerichtetes Rotationssieb enthält, das sich am Außenumfang des auf der momentan in der betreffenden Druckstation positionierten Aufnahmespindel sitzenden Hohlkörpers unter gleichzeitigem Farbauftrag abwälzen kann,
  • und mit mehreren entlang der Spindelbahnkurve verteilten Trocknungsstationen, die jeweils einen Strahlungstrockner enthalten, der in der Lage ist, den auf der momentan in der betreffenden Trocknungsstation positionierten Aufnahmespindel sitzenden Hohlkörper zum Trocknen der zuvor aufgebrachten Farbe zu bestrahlen.
The invention relates to a machine for printing hollow bodies such as sleeves, tubes, cans or the like,
  • with a clocked in rotation displaceable, having a horizontal axis of rotation spindle plate, which carries in its direction of rotation at a distance successive spindle units, which are each equipped with a parallel to the axis of rotation receiving spindle, on each of which a hollow body to be printed can be plugged and during rotation of the spindle plate go through a spindle track curve,
  • with several distributed along the spindle path printing stations, each having a rotary screen printing unit, which includes a hollow cylindrical, aligned parallel to the take-up spindles rotary screen, which can roll on the outer circumference of the seated on the currently positioned in the respective printing station recording spindle hollow body with simultaneous application of paint,
  • and with a plurality of drying stations distributed along the spindle path curve, each containing a radiation dryer capable of irradiating the hollow body seated on the receiving spindle currently positioned in the respective drying station for drying the previously applied paint.

Eine zum Bedrucken von Hülsen, Tuben, Dosen oder sonstigen Hohlkörpern geeignete Maschine dieser Art geht aus der EP 1 468 827 A1 hervor. Die Maschine enthält einen rotationsangetriebenen Spindelteller, der, in Rotationsrichtung verteilt, mit einer Vielzahl von Aufnahmespindeln bestückt ist, auf die die zu bedruckenden Hohlkörper aufgesteckt werden. Im Betrieb führt der Spindelteller eine getaktete Bewegung aus, wobei die Aufnahmespindeln mit den auf ihnen sitzenden Hohlkörpern nacheinander in aufeinanderfolgend platzierten Druckstationen und Trocknungsstationen positioniert werden. Jede Druckstation enthält ein Rotationssiebdruckwerk, durch das ein unmittelbarer Farbauftrag auf den momentan in der betreffenden Druckstation platzierten Hohlkörper stattfindet. Die Trocknungsstationen enthalten jeweils einen Strahlungstrockner, der eine kurzzeitig Trocknung zulässt. Die Druckstationen und Trocknungsstationen sind alternierend angeordnet, wobei in der Rotationsrichtung des Spindeltellers auf jede Druckstation eine Trocknungsstation folgt. Um eine platzsparende Anordnung zu erzielen, sitzen die Rotationssiebdruckwerke radial außerhalb und die Strahlungstrockner radial innerhalb der Spindelbahnkurve.A suitable for printing sleeves, tubes, cans or other hollow body machine of this kind is from the EP 1 468 827 A1 out. The machine contains a rotation-driven spindle plate, which, distributed in the direction of rotation, is equipped with a plurality of receiving spindles, onto which the hollow bodies to be printed are attached. In operation, the spindle plate performs a clocked movement, wherein the receiving spindles are positioned with the hollow bodies sitting on them successively in successively placed printing stations and drying stations. Each printing station contains a rotary screen printing unit, by means of which a direct inking takes place on the hollow body currently being placed in the respective printing station. The drying stations each contain a radiation dryer, which allows a short drying time. The printing stations and drying stations are arranged alternately, wherein a drying station follows in the direction of rotation of the spindle plate on each printing station. In order to achieve a space-saving arrangement, the rotary screen printing units are located radially outside and the radiation dryer radially inside the spindle track curve.

Soll durch einen Siebdruckvorgang ein über den gesamten Umfang eines Hohlkörpers geschlossenes Druckbild erzeugt werden, bedarf es einer sehr exakten Ansteuerung der Rotationssiebdruckwerke, um einen möglichst lückenlosen und exakten Übergang zwischen Anfang und Ende des Druckbildes zu gewährleisten. Um keine Farblücke zu erhalten, lässt es sich bisher gleichwohl kaum vermeiden, dass sich Anfang und Ende des Druckbildes zumindest minimal überlagern, was unschöne Druckeffekte zur Folge haben kann.If a printed image which is closed over the entire circumference of a hollow body is to be produced by a screen printing process, very precise control of the rotary screen printing units is required in order to ensure the most complete and exact transition between the beginning and the end of the printed image. In order to get no color gap, it can hardly be avoided, however, that the beginning and end of the printed image overlap at least minimally, which can result in unsightly printing effects.

Aus den PATENT ABSTRACTS OF JAPAN Bd. 017, Nr. 433 (M-1461), 11. August 1993 (1993-08-11 ) & JP 05 096704 A (MITSUBISHI MATERIALS CORP), 20. April 1993 (1993-04-20) geht eine Maschine zum Bedrucken von Hohlkörpern mittels mehreren Offset-Druckstationen hervor. Jeder Druckstation liegt radial eine Trocknungsstation gegenüber. Bei der Bearbeitung eines Hohlkörpers findet zuerst der Druckvorgang und anschließend der Trocknungsvorgang statt.From the PATENT ABSTRACTS OF JAPAN vol. 017, no. 433 (M-1461), 11 August 1993 (1993-08-11 ) JP 05 096704 A (MITSUBISHI MATERIALS CORP), April 20, 1993 (1993-04-20) leaves a machine for printing on hollow bodies by means of several offset printing stations. Each printing station is radially opposite a drying station. When processing a hollow body takes place first the printing process and then the drying process.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Maschine der eingangs genannten Art zu schaffen, die ein präzises und hochwertiges Druckergebnis liefert.The present invention is therefore an object of the invention to provide a machine of the type mentioned, which provides a precise and high-quality printing result.

Zur Lösung dieser Aufgabe ist vorgesehen, dass je eine Druckstation und eine Trocknungsstation paarweise zu einer kombinierten Druck- und Trocknungsstation zusammengefasst sind, in der sich jeweils ein Rotationssiebdruckwerk und ein Strahlungstrockner, auf entgegengesetzten Seiten der Spindelbahnkurve liegend, in der radialen Richtung des Spindeltellers gegenüberliegen, die so ausgebildet sind, dass sie gleichzeitig auf einen auf der momentan in der zugeordneten Druck- und Trocknungsstation befindlichen Aufnahmespindel sitzenden Hohlkörper einwirken können.To solve this problem, it is provided that a respective printing station and a drying station are combined in pairs to form a combined printing and drying station, in each of which a rotary screen printing unit and a radiation dryer, lying on opposite sides of the spindle track curve, in the radial direction of the spindle plate, which are designed so that they can simultaneously act on a seated on the currently located in the associated printing and drying station receiving hollow body.

In den kombinierten Druck- und Trocknungsstationen kann somit ein Hohlkörper, an unterschiedlichen Stellen seines Umfanges, gleichzeitig bedruckt und getrocknet werden. Die vom Rotationssiebdruckwerk aufgebrachte Druckfarbe gelangt folglich nach einer Umdrehung des Hohlkörpers aufgrund des dabei stattfindenden Trocknungsvorganges nicht mehr nass, sondern im bereits getrockneten Zustand zum Rotationssiebdruckwerk zurück. Selbst wenn sich daher Anfang und Ende eines aufgebrachten Druckbildes geringfügig überlappen, beeinträchtigt dies die Druckqualität kaum mehr, weil der hierbei überdruckte Anfang des Druckbildes bereits getrocknet ist und die Farben mithin nicht ineinander verlaufen können.In the combined printing and drying stations thus a hollow body, at different points of its circumference, can be printed and dried at the same time. The applied by the rotary screen printing ink thus passes after one revolution of the hollow body due to the process taking place drying no longer wet, but in the already dried state back to the rotary screen printing unit. Even if, therefore, slightly overlap the beginning and end of an applied print image, this hardly affects the print quality, because the overprinted beginning of the print image is already dried and therefore the colors can not run into each other.

Der Farbauftrag wird zweckmäßigerweise durch eine im Rotationssieb angeordnete bewegliche Rakel gesteuert, die wahlweise in einer an der Innenfläche der Siebwand des Rotationssiebes anliegenden wirksamen Stellung oder einer davon abgehobenen unwirksamen Stellung positionierbar ist. Da für dieses Umschalten eine gewisse Zeitdauer nicht unterschritten werden kann, wird sich in vielen Fällen nicht vermeiden lassen, dass das Rotationssieb mit einer bereits bedruckten Fläche des Hohlkörpers in Kontakt tritt. Dies könnte unter konventionellen Umständen zu Farbverwischungen führen. Da die Druckfarbe jedoch bereits getrocknet ist, können solche Beeinträchtigungen vorliegend nicht auftretenThe inking is suitably controlled by a movable squeegee arranged in the rotary screen, which can be optionally positioned in an operative position abutting the inner surface of the screen wall of the rotary screen or an inactive position lifted therefrom. Since a certain period of time can not be exceeded for this switching over, in many cases it will not be possible to avoid that the rotary screen comes into contact with an already printed surface of the hollow body. This could lead to color blurring under conventional circumstances. However, since the ink is already dried, such impairments can not occur in the present case

Ein weiterer Effekt der Erfindung besteht darin, dass die für das Drucken und Trocknen belegte Umfangslänge des Spindeltellers gegenüber dem Stand der Technik verringert werden kann.Another effect of the invention is that the occupied for printing and drying the circumferential length of the spindle plate can be reduced compared to the prior art.

Vorteilhafte Weiterbildungen der Erfindung gehen aus den Unteransprüchen hervor.Advantageous developments of the invention will become apparent from the dependent claims.

Zweckmäßigerweise befinden sich einerseits sämtliche Rotationssiebdruckwerke und andererseits sämtliche Strahlungstrockner auf jeweils der gleichen Seite der Spindelbahnkurve. Da die Rotationssiebdruckwerke in der Regel über etwas größere Abmessungen verfügen als die Strahlungstrockner, ist es hierbei vorteilhaft, die Rotationssiebdruckwerke radial außerhalb und die Strahlungstrockner radial innerhalb der Spindelbahnkurve anzuordnen.Conveniently, on the one hand, all the rotary screen printing units and, on the other hand, all the radiation dryers are located on the same side of the spindle track curve. Since the rotary screen printing units generally have slightly larger dimensions than the radiation dryers, it is advantageous here to arrange the rotary screen printing units radially outside and the radiation dryer radially inside the spindle track curve.

Der Abstand zwischen jeweils aufeinanderfolgenden kombinierten Druck- und Trocknungsstationen entspricht zweckmäßigerweise jeweils dem zweifachen Rotationstakt des Spindeltellers. Da aufgrund der Abmessungen der Rotationssiebdruckwerke und der Strahlungstrockner in der Regel ein gewisser Abstand zwischen aufeinanderfolgenden Druck- und Trocknungsstationen nicht unterschritten werden kann, kann auf diese Weise gleichwohl eine enge Verteilung der Aufnahmespindeln vorgenommen werden, die den in der Regel geringen Abständen der dem Spindelteller zugeführten Hülsenkörpern Rechnung trägt. Gleichwohl wäre es prinzipiell auch möglich, den Rotationstakt des Spindeltellers dem Abstand zweier aufeinanderfolgender Druck- und Trocknungsstationen entsprechend anzupassen.The distance between each successive combined printing and drying stations expediently corresponds to twice the rotational cycle of the spindle plate. Since a certain distance between successive printing and drying stations can not be fallen below due to the dimensions of the rotary screen printing and the radiation dryer usually a tight distribution of recording spindles can nevertheless be made in this way, which supplied the usually small distances of the spindle plate Sleeve bodies takes into account. Nevertheless, it would also be possible in principle to adapt the rotational cycle of the spindle plate to the distance between two successive printing and drying stations.

Die Aufnahmespindeln sind zumindest während ihres Aufenthaltes in einer Druck- und Trocknungsstation rotationsangetrieben. Ein solcher Rotationsantrieb kann allerdings auch außerhalb der Druck- und Trocknungsstationen, wenigstens phasenweise, gegeben sein.The take-up spindles are rotationally driven at least during their stay in a printing and drying station. However, such a rotary drive can also be outside the printing and drying stations, at least in phases, given.

Da sich innerhalb der Druck- und Trocknungsstationen die Rotationssiebdruckwerke und Strahlungstrockner im Wesentlichen radial gegenüberliegen, ergibt sich bereits durch die dazwisehen angeordnete Aufnahmespindel eine automatische Abschirmung der Rotationssiebdruckwerke von der Trocknungsstrahlung des in der gleichen Station befindlichen Strahlungstrockners. Durch die Abschirmung wird ausgeschlossen, dass die Rotationssiebe bestrahlt und die darin oder daran befindliche Farbe getrocknet wird. Um eine besonders hohe Abschirmungsqualität zu erzielen, können jedoch zusätzlich gesonderte Abschirmmittel vorhanden sein, die den erwähnten Strahlungsübertritt komplett verhindern oder zumindest noch stärker einschränken.Since the rotary screen printing units and radiation dryers lie essentially radially opposite one another within the printing and drying stations, the result is already there arranged receiving spindle an automatic shielding of the rotary screen printing of the drying radiation of the located in the same station radiation dryer. By shielding is excluded that the rotary screens are irradiated and dried therein or on it color is dried. In order to achieve a particularly high shielding quality, however, separate shielding means may additionally be present which completely prevent or at least restrict the aforementioned radiation transmission.

Es ist besonders vorteilhaft, wenn die Abschirmmittel über Abschirmelemente verfügen, die zwischen jeweils benachbarten Aufnahmespindeln direkt am Spindelteller angeordnet sind und somit dessen getaktete Rotationsbewegung mitmachen. Es erübrigen sich auf diese Weise aufwändige und für die Betätigung viel Zeit beanspruchende Mechaniken, um Abschirmelemente abwechselnd innerhalb und außerhalb des zwischen benachbarten Aufnahmespindeln liegenden Zwischenraumes zu platzieren.It is particularly advantageous if the shielding means have shielding elements, which are arranged between each adjacent receiving spindles directly on the spindle plate and thus join its clocked rotational movement. It is unnecessary in this way consuming and demanding for the operation of a lot of time mechanics to place shielding alternately inside and outside of the intermediate receiving spindles intermediate space.

Zweckmäßigerweise wird man die Maschine so ansteuern, dass innerhalb einer jeweiligen Druck- und Trocknungsstation nach Beendigung des Druckvorganges bei weiter rotierender Aufnahmespindel ein reiner Trocknungsvorgang stattfindet, sodass das aufgebrachte Druckbild bis zum Ende getrocknet wird. Sollte ein Umlauf des Hohlkörpers nicht ausreichen, um das gewünschte Trocknungsergebnis zu erzielen, kann die Aufnahmespindel nach Beendigung des Druckvorganges optional noch solange bei laufendem Strahlungstrockner rotiert werden, bis der gewünschte Trocknungsgrad erreicht ist.Conveniently, the machine will be controlled so that within a respective printing and drying station after completion of the printing process with a further rotating recording spindle a pure drying process takes place, so that the applied printed image is dried to the end. If a circulation of the hollow body is not sufficient to achieve the desired drying result, the receiving spindle can be rotated after completion of the printing process optionally still while the radiation dryer is running until the desired degree of dryness is reached.

Durch die eingesetzte Bestrahlungstechnik läuft der Trocknungsvorgang unter allen Umständen sehr schnell ab. Bevorzugt sind die Strahlungstrockner als UV-Trockner oder IR-Trockner ausgebildet und emittieren eine ultraviolette Strahlung (UV-Strahlung) oder eine Infrarot-Strahlung (IR-Strahlung) als Trocknungsstrahlung.Due to the irradiation technique used, the drying process takes place very quickly under all circumstances. The radiation dryers are preferably designed as UV dryers or IR dryers and emit ultraviolet radiation (UV radiation) or infrared radiation (IR radiation) as drying radiation.

Nachfolgend wird die Erfindung anhand der beiliegenden Zeichnung näher erläutert. In dieser zeigen:

Fig. 1
in schematischer Darstellung eine horizontale Vorderansicht einer bevorzugten Bauform der erfindungsgemäßen Druckmaschine,
Figur 2
eine teilweise geschnittene Draufsicht der Druckmaschine aus Figur 1 gemäß Schnittlinie II-II, wobei aus Gründen der Vereinfachung nur zwei der am Spindelteller angeordneten Vielzahl von Aufnahmespindeln gezeigt sind,
Figur 3
den in Figur 1 gekennzeichneten Ausschnitt III der Druckmaschine in vergrößerter Darstellung, wobei nur bei einem der Rotationssiebdruckwerke die Rakelsteuerung detaillierter gezeigt ist, und
Fig. 4
einen Schnitt gemäß Schnittlinie IV-IV durch die Anordnung aus Figur 3.
The invention will be explained in more detail with reference to the accompanying drawings. In this show:
Fig. 1
a schematic front view of a preferred design of the printing machine according to the invention,
FIG. 2
a partially sectioned plan view of the printing press FIG. 1 according to section line II-II, wherein, for reasons of simplicity, only two of the spindle plate arranged plurality of take-up spindles are shown,
FIG. 3
the in FIG. 1 marked section III of the printing press in an enlarged view, wherein only in one of the rotary screen printing the blade control is shown in more detail, and
Fig. 4
a section along section line IV-IV through the arrangement FIG. 3 ,

Die in ihrer Gesamtheit mit Bezugsziffer 1 bezeichnete Druckmaschine enthält unter anderem eine zuführ-Fördereinrichtung 2 und eine Abfuhr-Fördereinrichtung 3, die jeweils dem peripheren Bereich eines durch einen nicht näher dargestellten Antrieb getaktet in Rotation versetzbaren Spindeltellers 4 zugeordnet sind. Mit der Zufuhr-Fördereinrichtung 2 können zu bedruckende Hohlkörper 5 dem Spindelteller 4 zugeführt werden. Durch die Abfuhr-Fördereinrichtung 3 können bereits bedruckte Hohlkörper 5 vom Spindelteller 4 übernommen und abtransportiert werden.The printing press designated in its entirety by reference numeral 1 contains, inter alia, an infeed conveyor 2 and a discharge conveyor 3, which are each assigned to the peripheral area of a spindle plate 4 which can be clocked in rotation by a drive not shown in detail. With the feed conveyor 2 to be printed hollow body 5 are fed to the spindle plate 4. By the discharge conveyor 3 already printed hollow body 5 can be taken from the spindle plate 4 and transported away.

Im Einzelnen kann der Spindelteller 4 im Betrieb taktweise zu einer Rotationsbewegung um eine Drehachse 6 mit einer durch einen gezackten Pfeil angedeuteten Rotationsrichtung 7 angetrieben werden. Die Drehachse 6 ist horizontal ausgerichtet. Der Spindelteller 4 ist über eine Nabe 9 am Maschinengestell 45 drehgelagert.Specifically, during operation, the spindle plate 4 may be cyclically driven to rotate about an axis of rotation 6 with a direction of rotation 7 indicated by a jagged arrow become. The axis of rotation 6 is aligned horizontally. The spindle plate 4 is rotatably mounted on a hub 9 on the machine frame 45.

Der Spindelteller 4 ist mit einer Mehrzahl von in der Rotationsrichtung 7 mit Abstand aufeinanderfolgenden Spindeleinheiten 8 ausgestattet, die jeweils eine Aufnahmespindel 12 mit zur Drehachse 6 paralleler Spindelachse 13 enthalten.The spindle plate 4 is equipped with a plurality of spaced apart in the rotational direction 7 at a spacing spindle units 8, each containing a receiving spindle 12 with the axis of rotation 6 parallel spindle axis 13.

Die Spindeleinheiten 8 und somit auch die Aufnahmespindeln 12 befinden sich im peripheren Bereich des Spindeltellers 4. Jede Spindeleinheit 8 verfügt über eine Lagereinrichtung 14, die im Bereich des äußeren Randes des scheibenförmigen Tellerkörpers 15 des Spindeltellers 4 angeordnet ist und ausgehend von der die zugeordnete Aufnahmespindel 12 an der Vorderseite des Tellerkörpers 15 wegragt. Sämtliche Aufnahmespindeln 12 befinden sich an der Vorderseite des Tellerkörpers 15, wobei sie in gleichmäßigen Abständen entlang des Umfanges des Tellerkörpers 15 verteilt angeordnet sind.Each spindle unit 8 has a bearing device 14, which is arranged in the region of the outer edge of the disk-shaped plate body 15 of the spindle plate 4 and starting from the associated receiving spindle 12th protrudes at the front of the plate body 15. All receiving spindles 12 are located at the front of the plate body 15, wherein they are arranged distributed at equal intervals along the circumference of the plate body 15.

Auf die Aufnahmespindeln 12 können zu bedruckende Hohlkörper 5 lösbar drehfest aufgesteckt werden. Das Aufstecken geschieht durch die mit geeigneten Transfermitteln 18 ausgestattete Zufuhr-Fördereinrichtung 2. In vergleichbarer Weise erfolgt die Entnahme bereits bedruckter Hohlkörper 5 durch die Abfuhr-Fördereinrichtung 3.On the receiving spindles 12 to be printed hollow body 5 releasably rotatably attached. The attachment is done by the supply conveyor 2 equipped with suitable transfer means 18. In a comparable manner, the removal of already printed hollow bodies 5 takes place through the removal conveyor 3.

Zur Fixierung des auf einer Aufnahmespindel 12 sitzenden Hohlkörpers 5 sind einer jeweiligen Aufnahmespindel 12 nicht näher gezeigte Haltemittel zugeordnet, die beispielsweise auf der Basis von Magnetkräften oder auf der Basis von Unterdruck arbeiten. Bevorzugt mündet stirnseitig vorne an jeder Aufnahmespindel 12 ein Unterdruckkanal aus, der an eine Unterdruckquelle angeschlossen ist, um den aufgesteckten Hohlkörper 4 durch Vakuum festzuhalten.For fixing the hollow body 5 seated on a receiving spindle 12, holding means not shown in more detail are assigned to a respective receiving spindle 12 which operate, for example, on the basis of magnetic forces or on the basis of negative pressure. Preferably, an underpressure channel, which is connected to a vacuum source, terminates at the front on each receiving spindle 12 at the front, in order to hold the plugged-on hollow body 4 by vacuum.

Jede Aufnahmespindel 12 ist drehfest mit einem rad- oder walzenförmigen Antriebselement 16 gekoppelt, das an der Rückseite des Tellerkörpers 15 vorsteht.Each take-up spindle 12 is non-rotatably coupled to a wheel or roller-shaped drive element 16, which protrudes on the rear side of the plate body 15.

Bei der getakteten Rotation des Spindeltellers 4 durchlaufen die Aufnahmespindeln 12 eine zur Drehachse 6 konzentrische Spindelbahnkurve 17.During the clocked rotation of the spindle plate 4, the receiving spindles 12 pass through a spindle path curve 17 which is concentric with the axis of rotation 6.

Mit Bezug auf die Rotationsrichtung 7 zwischen der Zufuhr-Fördereinrichtung 2 und der Abfuhr-Fördereinrichtung 3 befindet sich eine sich entlang eines Teils des Umfanges des Spindeltellers 4 erstreckende Farbauftragszone 22. In ihr werden die auf den Aufnahmespindeln 12 sitzenden Hohlkörper 5 am Außenumfang mit Farbe bedruckt und auch getrocknet.With respect to the direction of rotation 7 between the feed conveyor 2 and the discharge conveyor 3 is located along a part of the circumference of the spindle plate 4 extending inking zone 22. In her sitting on the receiving spindles 12 hollow body 5 are printed on the outer circumference with color and also dried.

Wiederum bezogen auf die Rotationsrichtung 7, kann zwischen der Farbauftragszone 22 und der Abfuhr-Fördereinrichtung 3 noch eine nicht weiter dargestellte Lackiereinrichtung angeordnet sein, in der die bedruckten Hohlkörper 5 abschließend mit einem Schutzlack, insbesondere einem Klarlack, überlackiert werden.Referring again to the direction of rotation 7, between the inking zone 22 and the discharge conveyor 3, a coating device, not shown, may be arranged, in which the printed hollow bodies 5 are finally overcoated with a protective lacquer, in particular a clear lacquer.

Zumindest beim Hindurchlaufen durch die Farbauftragszone 22 und zweckmäßigerweise auch beim Durchlaufen der optional vorgesehenen Lackiereinrichtung werden die Aufnahmespindeln 12 einschließlich der auf ihnen sitzenden Hohlkörper 5 kontinuierlich um die Spindelachse 13 gedreht. Zu diesem Zweck enthält die Druckmaschine 1 eine oder mehrere, insbesondere ortsfest angeordnete Antriebseinheiten 24, mit denen die Antriebselemente 16 der Aufnahmespindeln 12 zumindest während des Verbleibes in der Farbauftragszone 22 antriebsmäßig gekoppelt werden, sodass die Aufnahmespindeln 12 während des gesamten Bedruckens und Trocknens der auf ihnen sitzenden Hohlkörper 5 kontinuierlich mit der gleichen Richtung um die Spindelachse 13 rotieren.At least when passing through the paint application zone 22 and expediently also when passing through the optionally provided painting device, the receiving spindles 12 including the hollow body 5 seated on them are continuously rotated about the spindle axis 13. For this purpose, the printing machine 1 includes one or more, in particular fixedly arranged drive units 24, with which the drive elements 16 of the take-up spindles 12 are drivingly coupled at least while remaining in the inking zone 22, so that the take-up spindles 12 during the entire printing and drying on them seated hollow body 5 rotate continuously with the same direction about the spindle axis 13.

In der Farbauftragszone 22 befinden sich mehrere, entlang der Spindelbahnkurve 17 verteilte kombinierte Druck- und Trocknungsstationen 25, in denen jeweils die Funktionen einer Druckstation und einer Trocknungsstation vereinigt sind.In the inking zone 22 there are several distributed along the spindle track 17 combined printing and drying stations 25, in each of which the functions of a printing station and a drying station are combined.

Jede solche Druck- und Trocknungsstation 25 ist mit einem Rotationssiebdruckwerk 27 ausgestattet. Jedes Rotationssiebdruckwerk 27 verfügt über ein Gehäuse 28 mit einem daran drehgelagerten hohlzylindrischen Sieb, das während seines Betriebes zu einer Rotationsbewegung um seine Siebachse 32 angetrieben wird und daher als Rotationssieb 33 bezeichnet sei. Für den Drehantrieb des Rotationssiebes 33 ist jedes Rotationssiebdruckwerk 27 mit einer eigenen Drehantriebseinrichtung 34 ausgestattet.Each such printing and drying station 25 is equipped with a rotary screen printing unit 27. Each rotary screen printing unit 27 has a housing 28 with a hollow cylindrical sieve rotatably mounted thereon, which is driven during its operation to a rotational movement about its Siebachse 32 and therefore is referred to as a rotary screen 33. For the rotary drive of the rotary screen 33, each rotary screen printing unit 27 is equipped with its own rotary drive device 34.

Die Rotationssiebe 33 sind so ausgerichtet, dass ihre längsverlaufenden Siebachsen 32 parallel zu den Spindelachsen 13 angeordnet sind. Die Rotationssiebe 33 sind so platziert, dass sie, mit Bezug auf die Spindelachsen 13, auf gleicher axialer Höhe mit demjenigen Bereich der Aufnahmespindel 12 liegen, der mit einem Hohlkörper 5 bestückbar ist.The rotary screens 33 are aligned so that their longitudinal sieve axes 32 are arranged parallel to the spindle axes 13. The rotary sieves 33 are placed so that, with respect to the spindle axes 13, they lie at the same axial height with that region of the receiving spindle 12 which can be equipped with a hollow body 5.

Wenn durch entsprechende rotationsmäßige Positionierung des Spindeltellers 4 eine Aufnahmespindel 12 in einer Druck- und Trocknungsstation 25 positioniert ist, kann die kreiszylindrische Siebwand 39 des Rotationssiebs 33 des zugeordneten Rotationssiebdruckwerkes 27 am Außenumfang des auf der betreffenden Aufnahmespindel 12 sitzenden Hohlkörpers 5 zur Anlage gebracht werden, um Farbe auf den Hohlkörper 5 aufzutragen. Das hierbei erzeugte Druckbild wird durch einen entsprechend gelochten Wandabschnitt 69 der Siebwand 39 vorgegeben, durch den die Druckfarbe hindurchtritt.If a receiving spindle 12 is positioned in a printing and drying station 25 by appropriate rotational positioning of the spindle plate 4, the circular cylindrical screen wall 39 of the rotary screen 33 of the associated rotary screen printing unit 27 on the outer circumference of sitting on the respective receiving spindle 12 hollow body 5 can be brought to bear Apply paint to the hollow body 5. The printed image produced in this case is predetermined by a correspondingly perforated wall section 69 of the screen wall 39, through which the printing ink passes.

An den beiden Stirnseiten eines jeweiligen Rotationssiebes 33 befindet sich eine Abschlusswand 35, sodass ein Sieb-Innenraum 37 definiert wird, der über eine Zuleitung 36 mit der Druckfarbe befüllbar ist. Eine in dem Sieb-Innenraum 37 angeordnete Rakel 38 erstreckt sich in dem der Spindelbahnkurve 17 zugewandten Farbauftragsbereich 42 längs der Innenfläche der kreiszylindrischen Siebwand 39 und kann bewirken, dass die Farbe bei der Rotation des Rotationssiebes 33 durch die Sieblöcher hindurchgedrückt wird und auf den Außenumfang des in der zugehörigen Druckstation 25 positionierten Hohlkörpers 5 aufgetragen wird, auf dem sich das Rotationssieb 33 abwälzt.At the two end faces of a respective rotary screen 33 is an end wall 35, so that a sieve interior 37 is defined, which via a supply line 36 with the Printing ink is fillable. An arranged in the screen interior 37 squeegee 38 extends in the spindle path curve 17 facing the inking area 42 along the inner surface of the circular cylindrical screen wall 39 and can cause the color is forced through the screen holes during rotation of the rotary screen 33 and on the outer circumference of the in the associated printing station 25 positioned hollow body 5 is applied, on which the rotary screen 33 rolls.

Die Rakel 38 erstreckt sich in dem Sieb-Innenraum 37 parallel zur Siebachse 32 und ist gemäß Doppelpfeil 62 quer zu der Siebachse 32 verstellbar. Beim Ausführungsbeispiel erfolgt das Verstellen im Rahmen einer Schwenkbewegung, indem die Rakel 38 um eine zur Siebachse 32 parallele Schwenkachse 63 bezüglich dem Gehäuse 28 verschwenkbar gelagert ist. Die Schwenkbewegung wird verursacht durch einen mit der Rakel 38 fest verbundenen Betätigungsarm 64, der über einen zum Beispiel von einer Rolle gebildeten Führungskörper 65 an einer rotationsangetriebenen Kurvenbahn 66 abläuft, an die er durch eine Federeinrichtung 61 angedrückt wird. Die Kurvenbahn 66 rotiert mit gleicher Winkelgeschwindigkeit wie das zugeordnete Rotationssieb 33 und ist mit einem Antriebsrad 67 der Drehantriebseinrichtung 34 drehfest verbunden, das mit einem weiteren Antriebsrad 68 kämmt, welches drehfest mit dem Rotationssieb 33 verbunden ist und dessen Rotationsbewegungen verursacht.The doctor blade 38 extends in the sieve interior 37 parallel to the Siebachse 32 and is adjustable according to double arrow 62 transverse to the Siebachse 32. In the embodiment, the adjustment takes place in the context of a pivoting movement by the doctor 38 is mounted about a parallel to the Siebachse 32 pivot axis 63 with respect to the housing 28 pivotally. The pivoting movement is caused by a firmly connected to the doctor blade 38 actuating arm 64 which runs over a, for example, formed by a roller guide body 65 on a rotationally driven cam track 66 to which it is pressed by a spring means 61. The cam track 66 rotates at the same angular velocity as the associated rotary screen 33 and is rotatably connected to a drive wheel 67 of the rotary drive device 34, which meshes with another drive wheel 68 which is rotatably connected to the rotary screen 33 and causes its rotational movements.

Die vorgenannten Komponenten bilden Steuermittel, die bewirken, dass die Rakel 38 bei der Rotation des Rotationssiebes 33 entsprechend der Vorgabe der Kurvenbahn 66 entweder eine an die Innenfläche der kreiszylindrischen Siebwand 39 andrückende wirksame Stellung oder eine von dieser Innenfläche abgerückte unwirksame Stellung einnimmt.The aforementioned components form control means which cause the doctor blade 38 in the rotation of the rotary screen 33 according to the specification of the cam track 66 occupies either a pressing against the inner surface of the circular cylindrical screen wall 39 effective position or from this inner surface withdrawn inactive position.

Der Durchmesser der Siebwand 39 ist größer als der Durchmesser des zu bedruckenden Hohlkörpers 5. Beim Ausführungsbeispiel beträgt er das Doppelte. Folglich benötigt die Siebwand 39 keine volle Umdrehung - beim Ausführungsbeispiel reicht eine halbe Umdrehung - um den Hohlkörper 5 voll umfänglich zu bedrucken.The diameter of the screen wall 39 is greater than the diameter of the hollow body to be printed 5. In the embodiment, it is twice. Consequently, the screen wall 39 does not require a complete revolution - in the embodiment, a half turn is sufficient - to print the hollow body 5 full extent.

Die Siebwand 39 ist folglich nur entlang eines Umfangsabschnittes gelocht, dessen Länge im Wesentlichen der Umfangslänge des Hohlkörpers entspricht (gelochter Wandabschnitt 69). Der verbleibende Wandabschnitt 70 ist ungelocht.The screen wall 39 is therefore perforated only along a peripheral portion whose length substantially corresponds to the circumferential length of the hollow body (perforated wall portion 69). The remaining wall portion 70 is not perforated.

Die Bewegungen von Rakel 38 und Rotationssieb 33 sind so koordiniert, dass die Rakel 38 dann die wirksame Stellung einnimmt, wenn der gelochte Wandabschnitt 69 den Farbauftragsbereich 42 durchläuft, wobei die zuvor mit minimalem Abstand zum Hohlkörper angeordnete flexible Siebwand 39 radial nach außen und an den Außenumfang des Hohlkörpers 5 angedrückt wird. Ist der gelochte Wandabschnitt 69 am Hohlkörper 5 abgerollt, gelangt die Rakel 38 in die unwirksame Stellung, so dass der nun den Farbauftragsbereich 42 durchlaufende ungelochte Wandabschnitt 70 radial geringfügig vom Hohlkörper 5 beabstandet ist und auch kein Farbauftrag mehr stattfindet.The movements of squeegee 38 and rotary screen 33 are coordinated so that the squeegee 38 then takes the operative position when the perforated wall portion 69 passes through the paint application area 42, wherein the previously arranged with minimal distance from the hollow body flexible screen wall 39 radially outwardly and to the Outer circumference of the hollow body 5 is pressed. If the perforated wall section 69 is unrolled on the hollow body 5, the doctor 38 reaches the inoperative position, so that the now non-perforated wall section 70 passing through the ink application area 42 is slightly radially spaced from the hollow body 5 and no more inking takes place.

In jeder Druck- und Trocknungsstation 25 wird eine andere Farbe auf die Hohlkörper 5 aufgebracht. Damit diese Farben nicht ineinander verlaufen, erfolgt vor dem neuerlichen Bedrucken eines Hohlkörpers 5 mit einer weiteren Farbe ein Trocknen der zuvor aufgebrachten Farbe. Dies geschieht jeweils unmittelbar in der gleichen Druck- und Trocknungsstation 25, in der auch der Farbauftrag stattgefunden hat, wobei eine besondere Trocknungseffektivität durch den Umstand erzielt wird, dass zum Trocknen in jeder Druck- und Trocknungsstation 25 ein Strahlungstrockner 43 eingesetzt wird, der den momentan in der betreffenden Druck- und Trocknungsstation 25 befindlichen Hohlkörper 5 mit einer energiereichen Trocknungsstrahlung bestrahlt. Bei der Strahlung handelt es sich insbesondere um ultraviolette Strahlung (UV-Strahlung) oder Infrarotstrahlung (IR-Strahlung), sodass die Strahlungstrockner 43 dementsprechend als UV-Trockner oder IR-Trockner ausgebildet sind.In each printing and drying station 25, a different color is applied to the hollow body 5. So that these colors do not run into one another, a drying of the previously applied color takes place before the renewed printing of a hollow body 5 with a further color. This happens in each case directly in the same printing and drying station 25, in which the inking has taken place, with a special drying efficiency is achieved by the fact that for drying in each printing and drying station 25, a radiation dryer 43 is used, the current in the relevant printing and drying station 25 located hollow body 5 with a high-energy drying radiation irradiated. The radiation is, in particular, ultraviolet radiation (UV radiation) or infrared radiation (IR radiation), so that the radiation dryers 43 are correspondingly designed as UV dryers or IR dryers.

Die Aufnahmespindeln 12 sind zumindest während ihres Aufenthalts in den einzelnen Druck- und Trocknungsstationen 25 drehangetrieben, sodass eine vollumfängliche Trocknung stattfinden kann, auch wenn sich die Bestrahlungszone 44 auf einen Abschnitt des Umfanges der Aufnahmespindel 12 bzw. des darauf sitzenden Hohlkörpers 5 beschränkt.The take-up spindles 12 are rotationally driven at least during their stay in the individual printing and drying stations 25, so that full drying can take place, even if the irradiation zone 44 is limited to a portion of the circumference of the take-up spindle 12 or of the hollow body 5 seated thereon.

In den einzelnen Druck- und Trocknungsstationen 25 sind jeweils das Rotationssiebdruckwerk 27 und der Strahlungstrockner 43 in radialer Richtung bezüglich der Drehachse 6 des Spindeltellers 4 auf entgegengesetzten Seiten der Spindelbahnkurve 17 angeordnet. Die genannten Komponenten liegen sich in der radialen Richtung des Spindeltellers 4 gegenüber, so dass eine in der betreffenden Druck- und Trocknungsstation 25 positionierte Aufnahmespindel auf einander diametral entgegengesetzten Seiten von zum einen einem Rotationssiebdruckwerk 27 und zum anderen einem Strahlungstrockner 43 flankiert ist.In the individual printing and drying stations 25 each of the rotary screen printing unit 27 and the radiation dryer 43 are arranged in the radial direction with respect to the axis of rotation 6 of the spindle plate 4 on opposite sides of the spindle track curve 17. The said components lie opposite one another in the radial direction of the spindle plate 4, so that a receiving spindle positioned in the relevant printing and drying station 25 is flanked on diametrically opposite sides by a rotary screen printing unit 27 and a radiation dryer 43.

Prinzipiell wäre es möglich, die Rotationssiebdruckwerke 27 radial innerhalb und die Strahlungstrockner 43 radial außerhalb der Spindelbahnkurve 17 zu platzieren. Es besteht ferner die Möglichkeit, bei den einzelnen Druck- und Trocknungsstationen 25 unterschiedliche Orientierungen vorzusehen, derart, dass das Rotationssiebdruckwerk 27 in einem Fall radial außen und im anderen Fall radial innen angeordnet ist, mit jeweils radial gegenüberliegendem Strahlungstrockner 43. Aufgrund der in der Regel im Vergleich zu den Strahlungstrocknern 43 größeren Breite der Rotationssiebdruckwerke 27 wird allerdings die aus der Zeichnung ersichtliche Bauform vorgezogen, bei der sämtliche Rotationssiebdruckwerke radial außerhalb und sämtliche Strahlungstrockner 43 radial innerhalb der Spindelbahnkurve 17 angeordnet sind.In principle, it would be possible to place the rotary screen printing units 27 radially inside and the radiation dryer 43 radially outside the spindle track curve 17. There is also the possibility of providing different orientations at the individual printing and drying stations 25, such that the rotary screen printing unit 27 is arranged radially outwardly in one case and radially inward in the other case, with respectively radially opposite radiation dryer 43. Because of the generally However, compared to the radiation dryers 43 larger width of the rotary screen printing 27, the apparent from the drawing design is preferred, at all the rotary screen printing units are arranged radially outside and all radiation dryers 43 are arranged radially inside the spindle track curve 17.

Die paarweise Zusammenfassung von Druckstationen und Trocknungsstationen zu kombinierten Druck- und Trocknungsstationen bietet den Vorteil, dass ein auf der momentan in der betreffenden Station angeordneten Aufnahmespindel 12 sitzender Hohlkörper 5 bei seiner Rotation gleichzeitig bedruckt und getrocknet werden kann. Dies ermöglicht bei kompakten Abmessungen der Druckmaschine 1 sehr hohe Bearbeitungsgeschwindigkeiten.The pairwise combination of printing stations and drying stations to combined printing and drying stations offers the advantage that a sitting on the currently in the station concerned receiving spindle 12 seated hollow body 5 can be simultaneously printed and dried during its rotation. This allows for compact dimensions of the printing press 1 very high processing speeds.

Die Aufnahmespindeln 12 bleiben jeweils mindestens solange in einer Druck- und Trocknungsstation 25, bis zumindest die gesamte aufgetragene Farbe bei der Spindelrotation den Bestrahlungsbereich des Strahlungstrockners 43 durchlaufen hat. Man wird daher die Ansteuerung zweckmäßigerweise so vornehmen, dass zwar zeitweilig ein gleichzeitiger Farbauftrag und Trocknungsvorgang stattfindet - an einander diametral gegenüberliegenden Bereichen des betreffenden Hohlkörpers 5 -, dass aber nach Beendigung des Druckvorganges die Aufnahmespindel 5 zumindest so lange innerhalb der Druck- und Trocknungsstation 25 um ihre Längsachse weitergedreht wird, bis die gesamte aufgebrachte Farbe an dem weiterhin in Betrieb befindlichen Strahlungstrockner 43 vorbeibewegt wurde.The receiving spindles 12 each remain in a printing and drying station 25 at least until at least the entire applied ink has passed through the irradiation area of the radiation dryer 43 during the spindle rotation. It will therefore be appropriate to carry out the control so that, although temporarily a simultaneous inking and drying process takes place - at diametrically opposite areas of the respective hollow body 5 - but that after completion of the printing process, the recording spindle 5 at least as long within the printing and drying station 25 to its longitudinal axis is further rotated until all of the applied paint has passed the still operating jet dryer 43.

Bevorzugt sind die Strahlungstrockner 43 an den Rotationssiebdruckwerken 27 befestigt und über diese am Gestell 45 der Druckmaschine 1 verankert. Die Rotationssiebdruckwerke 27 sind beispielsweise über Träger 46 am Maschinengestell 45 gehalten.Preferably, the radiation dryer 43 are attached to the rotary screen printing units 27 and anchored via this on the frame 45 of the printing machine 1. The rotary screen printing units 27 are held on the machine frame 45 via supports 46, for example.

Die Strahlungstrockner 43 enthalten jeweils eine Strahlungsquelle 47, beispielsweise eine UV-Lampe oder eine IR-Lampe, die insbesondere parallel zu den Aufnahmespindeln 12 ausgerichtet ist und die so platziert ist, dass sie mit einem gewissen Abstand neben dem mit einem Hohlkörper 5 zu bestückenden Längenabschnitt der jeweils in der Druck- und Trocknungsstation 25 platzierten Aufnahmespindel 12 liegt. Die Strahlungsquelle 47 ist von einem Reflektor 48 umgeben, der die Trocknungsstrahlung fokussiert und dafür sorgt, dass sie in der gewünschten Bestrahlungszone 44 auf den Außenumfang des dort positionierten Hohlkörpers 5 trifft.The radiation dryers 43 each contain a radiation source 47, for example a UV lamp or an IR lamp, which is aligned in particular parallel to the receiving spindles 12 is and which is placed so that it is located with a certain distance next to a hollow body 5 to be equipped length of each placed in the printing and drying station 25 receiving spindle 12. The radiation source 47 is surrounded by a reflector 48, which focuses the drying radiation and ensures that it strikes in the desired irradiation zone 44 on the outer circumference of the hollow body 5 positioned there.

Der in der Rotationsrichtung 7 gemessene Abstand zwischen jeweils aufeinanderfolgenden Druck- und Trocknungsstationen 25 ist beim Ausführungsbeispiel so bemessen, dass er zwei Rotationstakten des Spindeltellers 4 entspricht. Allerdings sind auch andere Abstände möglich.The measured in the direction of rotation 7 distance between each successive printing and drying stations 25 is dimensioned in the embodiment so that it corresponds to two rotational strokes of the spindle plate 4. However, other distances are possible.

Um besonders zuverlässig zu verhindern, dass der Druckvorgang in den Druck- und Trocknungsstationen 25 durch die in der gleichen Station oder in benachbarten Stationen erzeugte Trocknungsstrahlung beeinträchtigt wird, ist die Druckmaschine 1 zweckmäßigerweise mit Abschirmmitteln 52 ausgestattet, die einen unerwünschten Übertritt der Trocknungsstrahlung in den Bereich der Rotationssiebdruckwerke 27 verhindern.In order to prevent particularly reliably that the printing process in the printing and drying stations 25 is adversely affected by the drying radiation generated in the same station or in adjacent stations, the printing machine 1 is expediently provided with screening means 52 which undesirably convert the drying radiation into the area the rotary screen printing 27 prevent.

Bevorzugt enthalten die Abschirmmittel 52 zwischen jeweils benachbarten Aufnahmespindeln 12 angeordnete, vom Spindelteller 4 selbst getragene Abschirmelemente 53. Beim Ausführungsbeispiel sind längliche, plattenförmig gestaltete Abschirmelemente 53 vorgesehen, die einenends am Tellerkörper 15 befestigt sind und ausgehend von dem Tellerkörper 15, zwischen in der Rotationsrichtung 7 jeweils benachbarten Aufnahmespindeln 12, parallel zu den Aufnahmespindeln 12 frei endend nach vorne ragen.The shielding means 52 preferably comprise shielding elements 53, which are arranged between adjacent receiving spindles 12 and are supported by the spindle plate 4. In the exemplary embodiment, elongate, plate-shaped shielding elements 53 are provided which are fastened at one end to the plate body 15 and starting from the plate body 15, between in the direction of rotation 7 each adjacent receiving spindles 12, parallel to the receiving spindles 12 free end, projecting forward.

Die Abschirmelemente 53 haben zweckmäßigerweise eine etwa dem Durchmesser der Aufnahmespindeln 12 entsprechende Höhe und besitzen vorzugsweise, an den den benachbarten Aufnahmespindeln 12 zugewandten Längsseiten, etwa entsprechend der Krümmung der Aufnahmespindeln 12 gekrümmte konkave Seitenwände 54.The shielding elements 53 expediently have a height which corresponds approximately to the diameter of the receiving spindles 12 and preferably have, at the adjacent receiving spindles 12 facing longitudinal sides, approximately corresponding to the curvature of the receiving spindles 12 curved concave side walls 54th

Auf diese Weise sind die Abschirmelemente 53 in der Lage, den gesamten in der Rotationsrichtung 7 gemessenen Zwischenraum zwischen benachbarten Aufnahmespindeln 12 annähernd zu überbrücken. Die vom Strahlungstrockner 43 erzeugte Trocknungsstrahlung ist somit an einem Durchtritt durch diesen Zwischenraum und an einem Bestrahlen der gegenüberliegenden Rotationssiebe 33 gehindert.In this way, the shielding elements 53 are able to approximately bridge the entire space measured between adjacent receiving spindles 12 measured in the direction of rotation 7. The drying radiation generated by the radiation dryer 43 is thus prevented from passing through this gap and from irradiating the opposite rotary screens 33.

Die Länge der Abschirmelemente 53 entspricht zweckmäßigerweise zumindest der Länge der Aufnahmespindeln 12. Bevorzugt ragen die Abschirmelemente 53 jedoch ein Stück weit über die Aufnahmespindeln 12 hinaus.The length of the shielding elements 53 expediently corresponds at least to the length of the receiving spindles 12. However, the shielding elements 53 preferably protrude slightly beyond the receiving spindles 12.

Durch die konkave Krümmung der Seitenwände 54 kann der Außenumfang der Aufnahmespindeln 12 bzw. der darauf sitzenden Hohlkörper 5 über einen großen Teil seines Umfanges hinweg wirksam abgeschirmt werden.Due to the concave curvature of the side walls 54, the outer circumference of the receiving spindles 12 or the hollow body 5 seated thereon can be effectively shielded over a large part of its circumference.

Jeder Strahlungstrockner 43 ist zweckmäßigerweise auch mit einem Schutzgehäuse 55 ausgestattet, das denjenigen Bereich, in dem die Strahlungstrocknung stattfindet, umschließt. Auf diese Weise wird eine weitere Abschirmung insbesondere auch zu den benachbarten Druck- und Trocknungsstationen 25 hin erzielt. An den in und entgegen der Rotationsrichtung 7 weisenden Seiten vorgesehene schlitzartige Durchtrittsöffnungen 56 des Schutzgehäuses 55 liegen auf der Spindelbahnkurve 17 und verfügen über einen ausreichenden Querschnitt, um den mit Hohlkörpern 5 bestückten Aufnahmespindeln 12 bei der getakteten Rotation den Ein- und Austritt zu ermöglichen. Um den Durchgriff des Rotationssiebes 33 zu ermöglichen, verfügt das Schutzgehäuse 55 außerdem an der dem Rotationssiebdruckwerk 27 radial zugewandten Seite über eine bevorzugt schlitzartig ausgebildete weitere Öffnung 71.Each radiation dryer 43 is expediently also equipped with a protective housing 55, which surrounds that area in which the radiation drying takes place. In this way, a further shielding is achieved in particular also to the adjacent printing and drying stations 25 out. Slit-like passage openings 56 of the protective housing 55 provided on the sides pointing in and counter to the direction of rotation 7 lie on the spindle track curve 17 and have a sufficient cross section to allow the receiving spindles 12 equipped with hollow bodies 5 to rotate in and out of the clocked rotation. In order to allow the passage of the rotary screen 33, the protective housing 55 also has at the rotary screen printing unit 27 radially facing side via a preferably slit-like further opening 71st

Claims (16)

  1. Machine for printing on hollow bodies, such as sleeves, tubes, tins or similar objects,
    - with a spindle carrier (4) capable of rotary indexing and having a horizontal axis of rotation (6), which, in its direction of rotation (7), supports spaced spindle units (8), each of which is fitted with a mounting spindle (12) aligned parallel to the axis of rotation (6), on which the hollow body (5) to be printed can be mounted and which passes through a spindle path curve (17) while the spindle carrier (4) rotates,
    - with a plurality of printing stations distributed along the spindle path curve (17), each of which is provided with a rotary screen printing unit (27) incorporating a hollow-cylindrical rotary screen (33) aligned parallel to the mounting spindles (12) and capable of rolling on the outer circumference of the hollow body (5) currently mounted on the mounting spindle (12) in the relevant printing station (25) while applying ink,
    - and with a plurality of drying stations distributed along the spindle path curve (17) and each incorporating a radiant-heat drier (43) capable of irradiating the hollow body (5) currently mounted on the mounting spindle (12) in the relevant drying station to dry the ink previously applied,
    - characterised in that each printing station is combined with a drying station to form a combined printing and drying station (25), wherein a rotary screen printing unit (27) and a radiant heat drier (43) lie radially opposite one another on opposite sides of the spindle path curve (17), the said items being designed to act simultaneously on the hollow body (5) currently mounted on the mounting spindle (12) in the relevant printing and drying station (25).
  2. Machine according to claim 1, characterised in that all rotary screen printing units (27) and all radiant-heat driers (43) are radially located on the same side of the spindle path curve (17).
  3. Machine according to claim 1 or 2, characterised in that all rotary screen printing units (27) are located radially outside and all radiant-heat driers (43) are located radially inside the spindle path curve (17).
  4. Machine according to any of claims 1 to 3, characterised in that the distance between consecutive printing and drying stations (25) is equal to two cycles of rotation of the spindle carrier (4).
  5. Machine according to any of claims 1 to 4, characterised by screening means (52) for the prevention or at least for the reduction of the carry-over of the drying radiation generated in a printing and drying station (25) by the radiant-heat drier (43) located there into the rotary screen printing unit (27) located radially opposite.
  6. Machine according to claim 5, characterised in that the screening means (52) incorporate screening elements (53) supported by the spindle carrier (4) and located between adjacent mounting spindles (12).
  7. Machine according to claim 6, characterised in that the screening elements (53) are cantilevered on the spindle carrier (4).
  8. Machine according to claim 7, characterised in that the length of the screening elements (53) is at least equal to the length of the mounting spindles (12).
  9. Machine according to any of claims 6 to 8, characterised in that the screening elements (53) almost bridge the entire gap between mounting spindles (12) adjacent in the direction of rotation (7).
  10. Machine according to any of claims 6 to 9, characterised in that the screening elements (53), on the sides facing the adjacent mounting spindles (12), have a curved side wall (54) extending some distance along the circumference of the relevant mounting spindle (12).
  11. Machine according to any of claims 6 to 10, characterised in that the screening elements (53) are plate-shaped, with concave side walls (54) corresponding approximately to the curvature of the mounting spindles (12).
  12. Machine according to any of claims 1 to 11, characterised in that each radiant-heat drier (43) has a protective housing (55), wherein the radiant-heat drying process is completed and which projects into the spindle path curve (17), having slot-like openings (56) oriented in and against the direction of rotation (7) for the entry and exit of the mounting spindles (12) and a further, radially oriented, opening (71) for the passage of the associated rotary screen (33).
  13. Machine according to any of claims 1 to 12, characterised in that the radiant-heat driers (43) are designed as UV driers or IR driers.
  14. Machine according to any of claims 1 to 13, characterised in that a pure drying process is completed in each printing and drying station following the printing process, while the mounting spindle (12) continues to rotate about its longitudinal axis (13).
  15. Machine according to claim 14, characterised in that a doctor blade (38) adjustable relative to the circular cylindrical screen wall (39) is located within each of the rotary screens (33), which can be caused, by control means (63, 64, 65, 66) acting together therewith, to adopt either an active position in which it presses against the inner surface of the screen wall (39) to cause ink to be applied, or an inactive position in which it is raised off the said inner surface and does not cause any colour to be applied, wherein the control means (63, 64, 65, 66) are designed such that they hold the doctor blade (38) in the inactive position on completion of the printing process until the whole circumference of the hollow body (5) mounted on the still rotating mounting spindle (12) is dry.
  16. Machine according to claim 15, characterised in that the circular cylindrical screen wall (39) of the rotary screens (33) has at least one non-perforated wall section (70), the doctor blade (38) being placed in its inactive position when being passed by the non-perforated wall section (70).
EP05018119A 2005-08-20 2005-08-20 Device for printing on hollow articles Not-in-force EP1754603B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE502005003479T DE502005003479D1 (en) 2005-08-20 2005-08-20 Machine for printing on hollow bodies
ES05018119T ES2300912T3 (en) 2005-08-20 2005-08-20 MACHINE TO PRINT HOLLOW BODIES.
EP05018119A EP1754603B1 (en) 2005-08-20 2005-08-20 Device for printing on hollow articles
US11/492,091 US20070039490A1 (en) 2005-08-20 2006-07-25 Machine for printing on hollow bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05018119A EP1754603B1 (en) 2005-08-20 2005-08-20 Device for printing on hollow articles

Publications (2)

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EP1754603A1 EP1754603A1 (en) 2007-02-21
EP1754603B1 true EP1754603B1 (en) 2008-03-26

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EP (1) EP1754603B1 (en)
DE (1) DE502005003479D1 (en)
ES (1) ES2300912T3 (en)

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ITRE20060016A1 (en) 2006-02-10 2007-08-11 Omso Officina Macchine Per Stampa Su Oggetti SCREEN PRINTING MACHINE FOR CYLINDRICAL OBJECTS
DE102007005340B4 (en) * 2007-02-02 2009-12-03 Polytype Converting S.A. Printing method and apparatus for printing on hollow bodies
EP2025515A1 (en) * 2007-08-16 2009-02-18 Kba-Giori S.A. Screen printing press
ATE473863T1 (en) * 2008-03-11 2010-07-15 Polytype S A MODULAR LINEAR PRINTING MACHINE FOR PRINTING HOLLOW BODIES USING DIFFERENT PRINTING METHODS
KR101206608B1 (en) * 2009-11-17 2012-11-29 (주)엘지하우시스 Laser sealing apparatus for glass substrate
EP2595810B1 (en) * 2010-07-23 2018-08-22 Plastipak Packaging, Inc. Rotary system and method for printing containers
DE102013208061A1 (en) * 2013-01-31 2013-07-04 Krones Ag Apparatus for printing e.g. content information on e.g. drink bottle, has UV lamp that is arranged on one of pressure plane to emit UV radiation for curing applied ink on containers
US11465405B2 (en) * 2013-04-10 2022-10-11 Voith Patent Gmbh Device for generating a pattern on a clothing for a machine for manufacturing a web material
DE102013217665A1 (en) * 2013-09-04 2015-03-05 Krones Ag Device for printing on containers
EP3112175B1 (en) * 2015-06-30 2017-11-15 TAPEMATIC S.p.A. Process and apparatus for digital printing on articles

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JPH0596704A (en) * 1991-08-16 1993-04-20 Mitsubishi Materials Corp Multicolor printer for can
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FR2856338B1 (en) * 2003-06-23 2005-09-16 Dubuit Mach MACHINE FOR PRINTING OBJECTS WITH IMPROVED PROTECTION FROM ULTRAVIOLET RADIATION.
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DE502005003479D1 (en) 2008-05-08
US20070039490A1 (en) 2007-02-22
EP1754603A1 (en) 2007-02-21
ES2300912T3 (en) 2008-06-16

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