EP3450182B1 - Imprimante destinée à l'impression direct de récipients - Google Patents

Imprimante destinée à l'impression direct de récipients Download PDF

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Publication number
EP3450182B1
EP3450182B1 EP18169714.5A EP18169714A EP3450182B1 EP 3450182 B1 EP3450182 B1 EP 3450182B1 EP 18169714 A EP18169714 A EP 18169714A EP 3450182 B1 EP3450182 B1 EP 3450182B1
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EP
European Patent Office
Prior art keywords
printing
units
printing units
printing machine
machine according
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.)
Active
Application number
EP18169714.5A
Other languages
German (de)
English (en)
Other versions
EP3450182A1 (fr
Inventor
Martin Wagner
Bernhard WESS
August Peutl
Kai-uwe DREGER
Christian Hajek
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.)
Krones AG
Original Assignee
Krones AG
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
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Publication of EP3450182A1 publication Critical patent/EP3450182A1/fr
Application granted granted Critical
Publication of EP3450182B1 publication Critical patent/EP3450182B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0082—Digital printing on bodies of particular shapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/006—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/316—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with tilting motion mechanisms relative to paper surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects

Definitions

  • the invention relates to a printing machine for the direct printing of containers according to the preamble of claim 1 and as is known from DE 10 2015 215 295 A .
  • a generic printing machine is also from DE 10 2013 214 980 A1 known. This includes a carousel for transporting containers and stationary printing units with multiple print heads whose distance from the carousel, their vertical position and their inclination relative to the containers to be printed can be adjusted using individually controllable radial modules, height modules and tilting modules. The printing units can be docked individually in the periphery of the carousel with the help of centering devices.
  • a printing machine used for the direct printing of containers and comprises: a continuously rotating carousel for transporting the containers; several printing aggregates; and stationary docking stations for peripheral docking of the printing units on the carousel.
  • the printing machine comprises rail guides which are stationarily assigned to the docking stations for the separate movement of the printing units outwards from a docked operating position to a maintenance position and back again.
  • the printing unit In the maintenance position, the printing unit is arranged at a distance from the carousel and the docking station. The distance makes it easier to exchange individual ones
  • the print heads In the maintenance position, the print heads, in particular including the cleaning stations present on the printing units, can be checked manually and visually. Flexible supply lines, for example from the central machine area on the carousel, to the printing units can remain connected for maintenance work. Consequently, the print units can also be checked for functionality in their maintenance position, essentially independently of the operating state of the carousel.
  • the rail guides enable precise and collision-free guidance of the printing units between the operating position and the maintenance position.
  • a fixed assignment of the rail guides is to be understood as meaning a fixed installation position of the rail guides with respect to the carousel. For example, by screwing, by a positive fit of the rail guides with respect to a base frame of the carousel or the like.
  • a distance between the docking frames of the printing units and associated docking stations is preferably at least 0.3 m and in particular at least 0.6 m.
  • the rail guides are preferably heavy-duty full extensions, in particular with an extension length of at least 750 mm. This enables the printing units on the carousel to be guided in a particularly stable manner that is independent of external influences.
  • the printing machine preferably comprises at least one mounting plate/base plate which extends radially beyond the carousel and is connected to a stationary base frame of the printing machine, on which/in which the rail guides are fastened/designed.
  • the mounting plate / base plate facilitates a precise and reproducible positioning of the individual rail guides with respect to the carousel, and thus also an exact and reproducible positioning of individual printing units on the carousel.
  • the printing machine preferably comprises a plurality of identical partial circle sections, in each of which a docking station with two similar receiving areas for a printing unit each and two rail guides parallel to one another are arranged. This enables a particularly space-saving arrangement of two printing units next to each other at the same time good accessibility of the individual functional units, assemblies and / or components in the maintenance position of the individual printing units.
  • the two receiving areas of a docking station are preferably arranged in alignment with one another and/or have a substantially identical structure.
  • the receiving areas and the rail guides are preferably arranged on both sides and in particular axially symmetrically to a common radial displacement axis for the associated printing units. This facilitates the alignment of the printing units with respect to the respective pitch circle section, in particular in a radial alignment with respect to the carousel.
  • the printing units preferably include conically tapering centering bolts for pre-centering and clamping pots for locking the printing units on the carousel, with the docking stations having corresponding centering bores and clamping bolts.
  • the centering bolts enable self-guided pre-centering of the printing units while the printing units are approaching the rail guides.
  • the clamping pots enable a particularly precise and reproducible attachment of the printing units in their respective target position on the carousel.
  • the pre-centering in conjunction with the rail guides prevents damage to the clamping pots when the printing units approach the carousel.
  • the printing units preferably have base frames with uniform mounting points for the rail guides. As a result, individual printing units can be flexibly exchanged for one another, replaced by other types of printing units and/or other treatment units. Positioning on the mounting points enables economical attachment using standardized tools and work processes.
  • the printing machine also includes height-adjustable and/or elastically flexible support elements for connecting the printing units to the rail guides.
  • this allows height differences between the rail guide and the docking stations to be compensated for.
  • a position-accurate locking at the docking stations is made possible, since remaining differences in height and/or inclined positions between centering bolts and centering bores and/or clamping pots and clamping bolts are compensated for by the elastic support elements.
  • the clamping pots and clamping bolts work as a particularly precise self-centering lock.
  • the printing units each include at least one adjustment unit for adjusting print heads, in particular separately, with regard to their vertical and radial position and their inclination towards the carousel.
  • the printing units each include at least one adjustment unit for adjusting print heads, in particular separately, with regard to their vertical and radial position and their inclination towards the carousel.
  • the printing assemblies preferably include cleaning units with cleaning heads parked below the print heads and movable to the print heads.
  • the printing units can then be cleaned automatically and checked visually in the maintenance position, for example when purging the print heads.
  • the printing units include supply units and suction units for ink, which are arranged on the rear side of the printing units facing away from the carousel.
  • the supply units and suction units are then also accessible from the outside when the printing unit is in the operating position, for example after opening an associated machine cover.
  • the printing units then do not have to be moved into the maintenance position for the comparatively frequent maintenance of the supply units and suction units.
  • the printing units preferably include proximity sensors and the docking stations that correspond thereto and are in particular made of metal, for example in the form of sheet metal. In this way, the function of the clamping pots can be automatically controlled depending on the determined distance between the printing unit and the assigned receiving area.
  • the printing press also includes a machine cover divided into partial circle sections, which can be opened selectively in the associated partial circle section in order to extend the printing units.
  • the part of the printing unit that faces away from the print heads then protrudes, for example, beyond a peripheral line formed by the completely closed machine casing. This means that the printing units that need to be serviced are fully accessible, while the other printing units remain protected from disruptive environmental influences.
  • the printing press 1 comprises in a preferred embodiment a carousel 2 for the continuous transport of containers 3 to be printed.
  • a carousel 2 for the continuous transport of containers 3 to be printed.
  • holders for the containers 3 that can rotate around themselves are evenly distributed around the circumference (only some of them shown).
  • the transport of the containers on the carousel 2 and the rotation of the containers 3 during direct printing are known in principle and are therefore not explained further.
  • the printing machine 1 also includes a stationary base frame 4 for the carousel 2 and several dockable printing units 5, which are preferably identical in terms of their basic function, but can differ, for example, depending on the printing ink to be processed with regard to circulating or non-circulating ink supplies.
  • Additional units such as two printing units 5 together downstream UV curing units for ink, input and output inspection units and inlet and outlet stars are in the Fig.1 indicated by dashed lines without separate designation for illustration.
  • the printing units 5 are each mounted on a rail guide 6, with which they can be moved away from an inner operating position 7 of the carousel 2 to an outer maintenance position 8 and back again.
  • a printing unit 5 is in its outer maintenance position 8 and all other printing units 5 are in their inner operating position 7.
  • the docking stations 9 for the printing units 5 are permanently assigned to the rail guides 6.
  • the docking stations 9 preferably comprise a right-hand receiving area 9R (seen from the printing unit 5) and a left-hand receiving area 9L for one printing unit 5 each.
  • the two receiving areas 9R, 9L are essentially identical constructed and preferably comprise end plates 9a that are aligned with one another or a common end plate 9a for docking the printing units 5.
  • the printing machine 1 is divided into several identical pitch circle sections 10, wherein two printing units 5 are arranged with respect to a common axis of displacement 10a of the respective pitch circle section 10 substantially axially symmetrically.
  • the displacement axis 10a is in each case aligned radially with respect to the axis of rotation 2a of the carousel 2 .
  • Both rail guides 6 of a specific partial circle section 10 preferably run parallel to the displacement axis 10a.
  • the individual printing units 5 can be moved to the outer maintenance position 8 on their rail guides 6, preferably independently of one another. There the printing units 5 are accessible for maintenance work. Depending on the maintenance to be carried out, only one or also both printing stations 5 of a specific pitch circle section 10 can then be moved into the maintenance position 8 .
  • a mounting plate 11 for the rail guides 6 can also be seen, as well as a protective covering 12 laterally delimiting the printing machine 1.
  • the mounting plate 11 forms a machine floor and can consist, for example, of surface segments that are firmly connected to one another.
  • the rail guides 6 are preferably screwed to the mounting plate 11 or otherwise fastened for a stationary assignment of the rail guides 6 to the docking stations 9.
  • the mounting plate 11 is fixed to the base frame 4 for this purpose.
  • the protective covering 12 is preferably segmented by means of fastening columns 13, in particular in such a way that it can be opened separately for individual pitch circle areas 10 in order to enable selective access to the assigned printing units 5. This is in the 1 indicated schematically above.
  • the printing units 5 are essentially constructed as functional modules taken on their own.
  • the printing units 5 comprise adjustment units 14 with a plurality of print heads 15, which can preferably be adjusted both in relation to the carousel 2 in the radial direction and in their vertical position. Furthermore, tilting of the print heads 15 by means of the adjustment unit 14 is preferably possible. This is indicated by double arrows.
  • the adjustment unit 14 is used for the independent positioning/adjustment of the individual print heads 15.
  • the adjustment unit 14 can comprise interchangeable modules that differ, for example, with regard to the number of print heads 15, with regard to different degrees of freedom of positioning/adjustment and/or associated adjustment paths, with regard to their Adaptability to different pitch circle diameters and/or with regard to different print head types.
  • the printing units 5 also include cleaning units 16 with cleaning heads that can be raised to the print heads 15 .
  • the cleaning units 16 include a number of cleaning heads corresponding to the number of print heads 15, which can be automatically raised from a parking position for cleaning the print heads 15.
  • the printing units 5 also include supply units 17 for printing ink.
  • the supply units 17 are preferably arranged on the rear of the printing units 5 facing away from the carousel 2 and are therefore in principle also accessible to people in the operating position 7 .
  • the supply units 17 serve in particular both to supply ink to the print heads 15 and to supply media to an associated print mist extraction system (not shown) and the cleaning units 16, possibly also a decentralized compressed air supply or the like.
  • the rear arrangement of the supply units 17 on the printing units 5 enables particularly good access to components, assemblies or the like, for example for regular and/or wear-related replacement of ink filters, degassing cartridges of the ink supply or the like.
  • Modular sub-units, such as a specific ink supply can be changed if a different type of printhead is to be used or other ink supply requirements change.
  • the printing units 5 also include base frames 18 and docking frames 19 firmly connected thereto for docking at the docking stations 9.
  • the docking frames 19 include end plates 19a with centering bolts 20 and clamping pots 21, which correspond to the centering bores 22 and clamping bolts 23 formed on the docking stations 9.
  • the base frames 18 are attached to the movable parts 6a of the rail guides 6 in an elastically yielding manner.
  • the stationary parts 6b of the rail guides 6 are fastened to the mounting plate 11, for example by screwing, clamping or the like.
  • the docking frames 19 and docking stations 9 can be moved together in a self-centering manner by means of the centering bolts 20 and centering bores 22 and then locked together with low stress by means of the clamping pots 21 and clamping bolts 23. Remain despite a height adjustment of the printing units 5 positioning inaccuracies between the docking frames 19 and docking stations 9, these inaccuracies are compensated for by the flexible mounting 24 of the base frames 18 and the clamping pots 21 and clamping bolts 23 are relieved.
  • the docking frames 19 with the associated docking stations 9 thus each form separate zero-point clamping systems.
  • the printing unit 5 is in the 2 shown in its maintenance position 8, ie at a suitable radial distance DW from the carousel 2.
  • the distance DW is defined, for example, between the end plates 9a, 19a of the docking stations 9 and the docking frames 19.
  • mutually assigned docking frames 19 and docking stations 9 do not touch in the maintenance position 8 .
  • the printing units 5 also include terminal boxes 25 for establishing electrical connections or the like and supply units 26 for the central supply of the printing units 5 with energy, compressed air or the like.
  • the terminal boxes 25 are preferably arranged in a lower, central position on the printing units 5 in order to keep the cost of the internal wiring and the wiring to the carousel 2, ie to the basic machine, as low as possible.
  • the supply units 26 are preferably centrally connected via flexible lines 27 or the like in order not to impede the mobility of the printing units 5 between the operating position 7 and the maintenance position 8 .
  • the flexible lines 27, such as cables, hoses or the like, are guided in drag chains, for example.
  • the number of lines 27 between the printing units 5 and the carousel 2 or the basic machine is preferably minimized.
  • a power supply and a data connection to the respective printing unit 5 can be sufficient.
  • connecting lines can be particularly advantageous for media/functions that are particularly efficient in the area of carousel 2 or the basic machine leave, such as a central compressed air generation, vacuum generation, suction, ink refill station or the like.
  • the 3 illustrates embodiments of the centering bolts 20 formed on the docking frame 19 for pre-centering, which preferably taper conically at the free end, as well as the clamping pots 21 for the final positioning and locking of the printing units 5 at the docking stations 9.
  • a proximity sensor 28 is preferably attached to the docking frame 19, with which the approach of the printing unit 5 to the associated receiving area 9R, 9L can be monitored.
  • the end plate 19a of the docking frame 19 and the base frame 18 with its elastic mounting 24 on the rail guide 6 can also be seen.
  • the end plate 19a can be wedge-shaped for alignment to match the corresponding end plate 9a.
  • the 4 shows embodiments of the centering bores 22 corresponding to the centering bolts 20 and the clamping bolts 23 corresponding to the clamping pots 21 for two adjacent receiving areas 9R, 9L. Also indicated are position sensors 29 which correspond to the proximity sensors 28 and are designed, for example, as interrogation plates or the like.
  • the centering bolts 20 and the associated centering bores 22 are preferably designed in duplicate for each printing unit 5 and receiving area 9L, 9R.
  • the clamping pots 21 and clamping bolts 22 are preferably designed in triplicate per printing unit 5 and receiving area 9L, 9R. On the one hand, this enables sufficiently precise pre-centering and, on the other hand, precise positioning and locking of the printing units 5 both in the horizontal and in the vertical direction.
  • the docking frames 19 and the receiving areas 9L, 9R preferably include end plates 19a and 9a, which are aligned orthogonally to the centering bolts 20 and clamping bolts 22 and lie flat against one another when the printing units 5 are in the locked state.
  • the printing units 5 are guided and locked to/at the docking stations 9 in an equally stable and precise manner.
  • the receiving areas 9R, 9L preferably share a common end plate 9a. However, this is just as little absolutely necessary as an aligned arrangement of the receiving areas 9L, 9R.
  • the figure 5 clarifies the elastically resilient mounting 28 of the base frames 18 of the printing units 5 on the rail guides 6.
  • carriers 30 are screwed to the moving parts 6a of the rail guide 6.
  • the elastic bearing 24 sits on the supports 30, in particular in the form of elastically flexible support elements 24a for the base frames 18. This enables an immovable connection between the printing units 5 and the moving parts 6a of the rail guides 6, for example when moving into the maintenance position 8 compensatory mobility of the printing units 5 with respect to the rail guides 6 when docking in the operating position 7 allows.
  • clamping pots 21 and clamping bolts 23 can interact essentially without external tension and lock the printing units 5 exactly and reproducibly on the docking stations 9 .
  • the elastically yielding support elements 24a are designed, for example, as rubber-metal buffers.
  • the rubber-metal buffers are then fastened to the carriers 30, for example by means of countered threaded bolts, in order to be able to separately adjust the height of the pressure units 5 on each support element 24a with respect to the respective rail guide 6.
  • the height of the centering bolts 20 can be adapted to the associated centering bores 22 for the pre-centering.
  • Height-adjustable support elements 24a enable a particularly careful pre-centering and subsequent positioning of the clamping pots 21 on the clamping bolts 23.
  • the clamping pots 21 thus remain protected from damage when approaching the operating position 7 and still allow a reproducible and position-accurate fastening and locking of the printing units 5 in their respective receiving area 9R , 9L.
  • the rail guides 6 are preferably designed as heavy-duty full extensions, for example with an extension length of at least 750 mm.
  • the full extension can include stop dampers 31 for vibration-free positioning.
  • the rail guides 6 could also be designed in such a way that the printing units 5 can be moved completely out of the area of the printing machine 1 and separated from it.
  • the rail guides 6 would not be designed as heavy-duty extensions, but instead, for example, as open guide rails, in/on where the printing units 5 go on wheels.
  • the full extensions described are advantageous with regard to the significantly lower adjustment effort for the print heads 15, ie with regard to the better reproducible positioning in the operating position 7.
  • the printing units 5 can be docked to the printing machine 1 in any arrangement and sequence.
  • the base frames 18 of all printing units 5 preferably have identical mounting points that match the support elements 24a on the rail guides 6.
  • the printing units 5 can be pre-assembled, commissioned and / or tested there independently of the basic machine / the carousel 2, for example by connecting to a simulator to simulate the basic machine. Efficient maintenance / overhauling of the printing units 5 is also possible under these conditions,
  • Identical pressure units 5 can be used on pitch circles/base machines of different sizes.
  • Printing machines 1 can only be partially equipped with printing units 5. In principle, it is also possible to successively expand the range of functions of the printing machine 1 by equipping an increasing number of pitch circle sections 10 and/or receiving areas 9R, 9L with printing units 5.
  • Printing units 5 or other treatment units can also be easily replaced by technologically advanced types.
  • the printing units 5 are preferably constructed and controlled in such a way that their functions can be tested independently of the carousel 2 or the printing press 1.
  • the printing units 5 can be connected to a suitable machine simulator, for example.
  • a suitable machine simulator for example.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ink Jet (AREA)
  • Rotary Presses (AREA)

Claims (14)

  1. Machine d'impression (1) pour une impression directe de contenants (3), comprenant : un carrousel (2) tournant en continu pour transporter les contenants (3) ; plusieurs groupes d'impression (5) ; et des stations d'accueil fixes (9) pour un accueil périphérique des groupes d'impression (5) sur le carrousel (2), caractérisée par des glissières (6) qui sont associées de manière fixe aux stations d'accueil (9) pour un déplacement séparé des groupes d'impression (5) d'une position de fonctionnement d'accueil (7) vers l'extérieur jusque dans une position d'attente (9) espacée du carrousel (2), et inversement.
  2. Machine d'impression selon la revendication 1, dans laquelle la glissière (6) est conçue de telle sorte qu'une distance (DW) entre des supports d'accueil (19) des groupes d'impression (5) et les stations d'accueil (9) associées dans la position de maintenance (8) est d'au moins 0,3 m, et en particulier d'au moins 0,6 m.
  3. Machine d'impression selon la revendication 1 ou 2, dans laquelle les glissières (6) comprennent des extractions totales pour usage intensif, en particulier avec une longueur d'extension d'au moins 750 mm.
  4. Machine d'impression selon l'une quelconque des revendications précédentes, comprenant en outre au moins une plaque de montage (11) qui fait saillie radialement au-delà du carrousel (2) et est reliée à un support de base fixe (4) de la machine d'impression (1) et sur laquelle/dans laquelle les glissières (6) sont fixées/formées.
  5. Machine d'impression selon l'une quelconque des revendications précédentes, dans laquelle la machine d'impression (1) comprend une pluralité de sections circulaires partielles (10) identiques, dans chacune desquelles sont disposées une station d'accueil (9) avec deux zones de réception (9L, 9R) identiques pour un groupe d'impression (5) respectif et deux glissières (6), en particulier parallèles entre elles.
  6. Machine d'impression selon la revendication 5, dans laquelle les zones de réception (9L, 9R) et les glissières (6) sont agencées respectivement des deux côtés et en particulier à symétrie axiale par rapport à un axe de déplacement radial commun (10a) pour les groupes d'impression (5) associés.
  7. Machine d'impression selon l'une quelconque des revendications précédentes, dans laquelle les groupes d'impression (5) comprennent des boulons de centrage (20) coniques pour un pré-centrage et des mandrins (21) pour bloquer les groupes d'impression (5) dans la périphérie du carrousel (2), et les stations d'accueil (9) présentent des alésages de centrage (22) et des boulons de serrage (23) correspondants.
  8. Machine d'impression selon l'une quelconque des revendications précédentes, dans laquelle les groupes d'impression (5) présentent des supports de base (18) avec des points de montage uniformes pour les glissières (6).
  9. Machine d'impression selon la revendication 8, comprenant en outre un support (24) réglable en hauteur et/ou souple et élastique des groupes d'impression (5) sur les glissières (6).
  10. Machine d'impression selon l'une quelconque des revendications précédentes, dans laquelle les groupes d'impression (5) comprennent chacun au moins une unité de réglage (14) pour, en particulier, un réglage séparé de têtes d'impression (15), en particulier pour un réglage séparé de têtes d'impression individuelles (15) par rapport à leur position verticale et radiale et à leur inclinaison vers le carrousel (2).
  11. Machine d'impression selon la revendication 10, dans laquelle les groupes d'impression (5) comprennent en particulier des unités de nettoyage identiques (16) avec des têtes de nettoyage qui sont stationnées en dessous des têtes d'impression (15) et qui peuvent être déplacées par un moteur par rapport aux têtes d'impression (15).
  12. Machine d'impression selon l'une quelconque des revendications précédentes, dans laquelle les groupes d'impression (5) comprennent des unités d'alimentation (17) en encre qui sont agencées sur la face arrière des groupes d'impression (5) opposée au carrousel (2).
  13. Machine d'impression selon l'une quelconque des revendications précédentes, dans laquelle les groupes d'impression (5) comprennent des capteurs de proximité (28) et les stations d'accueil (9) comprennent des capteurs de position (29) correspondant à ceux-ci, ou vice versa.
  14. Machine d'impression selon l'une quelconque des revendications précédentes, comprenant en outre un revêtement de machine (12) qui est divisé en sections partiellement circulaires (10), qui peut être ouvert sélectivement dans une section circulaire partielle (10) associée pour déployer des groupes d'impression individuels (5).
EP18169714.5A 2017-09-04 2018-04-27 Imprimante destinée à l'impression direct de récipients Active EP3450182B1 (fr)

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DE102011056441A1 (de) * 2011-12-14 2013-06-20 Krones Ag Vorrichtung zum Transportieren von Kunststoffvorformlingen
FR2985683B1 (fr) * 2012-01-16 2014-02-28 Jean Luc Perret Machine d'impression sur articles en trois dimensions et procede d'impression
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DE102013214980A1 (de) 2013-07-31 2015-02-05 Krones Ag Druckmaschine mit Druckkopfsteuerung
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CN109421387A (zh) 2019-03-05
DE102017215446A1 (de) 2019-03-07

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