EP1754603B1 - Maschine zum Bedrucken von Hohlkörpern - Google Patents

Maschine zum Bedrucken von Hohlkörpern 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
Authority
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
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1754603A1 (de
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
Original Assignee
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 EP05018119A priority Critical patent/EP1754603B1/de
Priority to DE502005003479T priority patent/DE502005003479D1/de
Priority to ES05018119T priority patent/ES2300912T3/es
Priority to US11/492,091 priority patent/US20070039490A1/en
Publication of EP1754603A1 publication Critical patent/EP1754603A1/de
Application granted granted Critical
Publication of EP1754603B1 publication Critical patent/EP1754603B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
EP05018119A 2005-08-20 2005-08-20 Maschine zum Bedrucken von Hohlkörpern Not-in-force EP1754603B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05018119A EP1754603B1 (de) 2005-08-20 2005-08-20 Maschine zum Bedrucken von Hohlkörpern
DE502005003479T DE502005003479D1 (de) 2005-08-20 2005-08-20 Maschine zum Bedrucken von Hohlkörpern
ES05018119T ES2300912T3 (es) 2005-08-20 2005-08-20 Maquina para imprimir cuerpos huecos.
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 (de) 2005-08-20 2005-08-20 Maschine zum Bedrucken von Hohlkörpern

Publications (2)

Publication Number Publication Date
EP1754603A1 EP1754603A1 (de) 2007-02-21
EP1754603B1 true EP1754603B1 (de) 2008-03-26

Family

ID=35520961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05018119A Not-in-force EP1754603B1 (de) 2005-08-20 2005-08-20 Maschine zum Bedrucken von Hohlkörpern

Country Status (4)

Country Link
US (1) US20070039490A1 (es)
EP (1) EP1754603B1 (es)
DE (1) DE502005003479D1 (es)
ES (1) ES2300912T3 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRE20060016A1 (it) 2006-02-10 2007-08-11 Omso Officina Macchine Per Stampa Su Oggetti Macchina di stampa serigrafica per oggetti cilindrici
DE102007005340B4 (de) * 2007-02-02 2009-12-03 Polytype Converting S.A. Druckverfahren und Vorrichtung zum Bedrucken von Hohlkörpern
EP2025515A1 (en) * 2007-08-16 2009-02-18 Kba-Giori S.A. Screen printing press
EP2100733B1 (de) * 2008-03-11 2010-07-14 Polytype S.A. Modular aufgebaute Lineardruckmaschine zum Bedrucken von Hohlkörpern mit unterschiedlichen Druckverfahren
KR101206608B1 (ko) * 2009-11-17 2012-11-29 (주)엘지하우시스 유리기판의 레이저 실링장치
EP2595810B1 (en) 2010-07-23 2018-08-22 Plastipak Packaging, Inc. Rotary system and method for printing containers
DE102013208061A1 (de) * 2013-01-31 2013-07-04 Krones Ag Vorrichtungen zum Bedrucken von Behältern und Verfahren dazu
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 (de) * 2013-09-04 2015-03-05 Krones Ag Vorrichtung zum Bedrucken von Behältern
EP3112175B1 (en) * 2015-06-30 2017-11-15 TAPEMATIC S.p.A. Process and apparatus for digital printing on articles
JP7470612B2 (ja) * 2020-10-12 2024-04-18 アルテミラ株式会社 印刷装置

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
JP2926502B2 (ja) * 1990-02-20 1999-07-28 理想科学工業株式会社 孔版印刷装置
JPH0596704A (ja) * 1991-08-16 1993-04-20 Mitsubishi Materials Corp 缶の多色印刷装置
FR2782292B1 (fr) * 1998-08-13 2000-11-10 Dubuit Mach Machine a imprimer a supports porte-objet montes rotatifs
DE50300908D1 (de) 2003-04-12 2005-09-08 Hinterkopf Gmbh Maschine zum Bedrucken von Hohlkörpern
FR2856338B1 (fr) * 2003-06-23 2005-09-16 Dubuit Mach Machine d'impression d'objets a protection amelioree vis-a-vis du rayonnement ultraviolet.
DE10349560A1 (de) * 2003-10-22 2005-06-02 Werner Kammann Maschinenfabrik Gmbh Vorrichtung zum Dekorieren von formsteifen Objekten

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
DE502005003479D1 (de) 2008-05-08
EP1754603A1 (de) 2007-02-21
ES2300912T3 (es) 2008-06-16
US20070039490A1 (en) 2007-02-22

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