EP3426495B1 - Dispositif d'impression de bouchons de récipients fermés - Google Patents

Dispositif d'impression de bouchons de récipients fermés Download PDF

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Publication number
EP3426495B1
EP3426495B1 EP16809037.1A EP16809037A EP3426495B1 EP 3426495 B1 EP3426495 B1 EP 3426495B1 EP 16809037 A EP16809037 A EP 16809037A EP 3426495 B1 EP3426495 B1 EP 3426495B1
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EP
European Patent Office
Prior art keywords
printing
closure
unit
print image
container
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
EP16809037.1A
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German (de)
English (en)
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EP3426495A1 (fr
Inventor
Peter Lindner
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
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Krones AG
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Classifications

    • 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
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/008—Controlling printhead for accurately positioning print image on printing material, e.g. with the intention to control the width of margins
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/46—Applying date marks, code marks, or the like, to the label during labelling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/006—Applying date marks, code marks, or the like, to caps during capping

Definitions

  • the invention relates to a device and a method for printing the closures of closed containers.
  • the known methods and devices have in common that they always determine the position of the container as a whole and thus also the position of the closure based on the determination of the position of a label or a part of the container and, depending on this, the pressure device is controlled to close the To print on the container.
  • the document JP H04 216989 A discloses a method of printing an image at a specific position on the lid of a beverage can that is conveyed on a belt. For this purpose, the position and orientation of the closure in the lid of the beverage can is recorded with the aid of an image sensor.
  • the object to be solved consists in specifying a method and a device for printing closures of closed containers which enable reliable and correct printing of the closure.
  • the containers can in particular be bottles, here preferably bottles made of glass or plastic, in particular PET. Coated containers can also be printed with the device.
  • the coated containers can also be bottles made from the materials mentioned or from other materials. In particular, containers provided with labels can be printed on.
  • all containers that are provided with a detachable closure can be printed with the device, ie the closure can be printed.
  • the closures can be metal or plastic closures. Closures that include both metallic components and components made of plastic such as PET are also conceivable.
  • the device can also be used to print on containers that are closed with a closure made of natural, in particular organic materials, or with a closure that encompasses them.
  • closures that are additionally provided with a seal, label or a metal foil, as is usual for example with sparkling wine bottles, wine bottles or beer bottles, can be printed. Larger closures, such as screw closures on yoghurt pots, can also be printed.
  • the position of the closure is determined at least transversely to the transport direction for each container to control the printing unit, slight deviations in the shape of the container are compensated and the closure can be correctly printed. Furthermore, since the deviations of each container from the ideal shape can be different from any other container, reliable printing of each container is ensured by determining this position for each individual container.
  • control unit is designed for the purpose of controlling the application of the printing ink, software-based adapting a print image for the closure stored in a memory to the position in order to obtain a print image to be applied and to assign the printing unit to the application of the printing ink based on the print image to be applied Taxes.
  • the print image to be applied is initially adapted to the position digitally, that is to say based on software, with the aid of the control unit, which can be designed as a computer or the like, for example.
  • This relates in particular to the position at which the print image is applied by the printing unit using printing ink.
  • the stored print image or information pertaining to it which is transferred to the printing unit and causes the individual nozzles of the printing unit to be controlled, can be changed so that the position at which the printing ink forming the print image is applied from the printing unit is the position of the closure on the container.
  • the printing unit can be designed to be stationary, i.e. immovable with respect to the transport path, and yet reliable printing of the print images on the closures can be ensured. Since the software-based modification of the print image can take place more quickly than a displacement of the printing unit relative to the transport path, this embodiment can simultaneously increase the throughput with which the closures of the containers can be printed.
  • the printing unit is a digital printing unit and comprises a print head with a printing area whose width transversely to the transport direction is greater than the diameter of a closure to be printed and is at most equal to the width of the transport path. So practically any deviations of the container compensated for by their ideal shape and the closures are correctly printed without the need for any means for moving the printing unit.
  • the printing unit can be designed to be stationary.
  • the detection unit comprises optics for taking an image, a lighting device for illuminating at least part of a container transported in the transport path and an optical body assigned to the optics for redirecting beams of the lighting device reflected by the container into the optics .
  • the lighting device can emit light in the visible range and the optical body has a refractive index greater than 1 or consists of reflective material. Characteristics of the container that are visible to the end user can thus be used when determining the print image to be applied to the closure. This can increase the acceptance of the product.
  • the optical body can be arranged concentrically to the optics and have an opening, the center of which lies on the optical axis of the optics.
  • information relevant to the printing of the closure can be forwarded via the container to the optics and at the same time the position of the actual closure can be made through the opening without any disruptive optical effects.
  • control unit is designed to rotate a print image stored in a memory for the closure in a software-based manner, depending on the reflected light, in order to generate a print image to be applied depending on the position of a label on the container and the printing unit based on the print image to be applied to control the application of the printing ink.
  • the device can thus not only ensure that the closure is completely provided with a print image, but that this print image is also correctly aligned relative to the label.
  • the containers are transported along a transport path and a detection unit determines the position of the closure transversely to the transport direction for each container, as is defined in detail in claim 7.
  • the detection unit determines the position optically.
  • the containers are transported in a random manner, at least with regard to their position transversely to the transport path. Since the position of the closure is determined transversely to the transport path anyway in order to print the closure, devices that ensure the most exact possible movement of the containers transversely to the transport direction can be dispensed with and the throughput of containers may be increased.
  • a print image for the closure stored in a memory is adapted to the position in a software-based manner in order to obtain a print image to be applied and the printing unit is controlled based on the print image to be applied for the application of the printing ink.
  • the software-based manipulation of the print image can sometimes be faster than changing the position of the printing unit itself with mechanical means, so that even with high throughput or high speed of the containers to be printed, it is possible to individually adjust the output of the printing ink for each container.
  • the closed containers to be printed have a label and a lighting device illuminates the containers at least in an area which has at least part of the label and light reflected from the area is fed through an optical body of an optical system of the detection unit.
  • the printing unit is controlled by the control unit on the basis of the reflected light supplied to the detection unit for ejecting the printing ink.
  • the print image or design can thus be applied to the container as a function of the label, here in particular the content of the label.
  • Figure 1 shows a device 100 for printing closures 131 of closed containers 130.
  • the device comprises a transport path 101 in which the closed containers 130 are transported along a transport direction (arrow).
  • the transport path thus defines a transport direction for the containers 130.
  • the transport path can be designed as a conveyor belt. Other embodiments, for example a transport of the containers on standing plates, is also conceivable.
  • the transport path does not have to be linear, but can also be provided as part of a machine designed as a rotary machine with several container receptacles.
  • the device 100 can be part of a container treatment system for treating containers.
  • the container treatment system can have further container treatment machines, in particular a filler, a closer and a labeling machine include. These container treatment machines can all be arranged upstream of the device 100. However, one or more can also be provided downstream of the device. If the device is integrated into such a container treatment system, it is preferred if not only the closer but also a labeling machine or printing machine for labeling / printing the container are arranged upstream of the device.
  • a detection unit 102 is arranged in the area of the transport path 101. This detection unit is arranged in such a way that it can determine at least the position of the closure 131 of each container 130 transversely to the transport direction.
  • the detection unit 102 can for example be designed as a 2D, 3D or line camera and be arranged above the transport path 101, the optics of the camera pointing in the direction of the transport path.
  • the distance between the detection unit and the transport path is selected so that closed containers 130 can be transported in the transport path 101 through under the camera.
  • the detection unit does not have to be designed as a camera, but is in any case designed in such a way that it can determine the position of the closure transversely to the direction of transport. This means that the detection unit can determine how the closure is positioned on the container relative to a reference, for example the center of the transport path 101.
  • a printing unit 103 is arranged which can print on the closure 131 of a container 130 transported in the transport path 101.
  • the printing unit 103 can be designed, for example, as a digital print head, in particular as an inkjet print head, and can apply printing ink to the closure 131. All digitally controllable, contactless printing methods, in particular drop-on-demand methods and corresponding print heads, are preferred.
  • the printing ink is applied in such a way that a predetermined print image is created on the closure 131. It goes without saying that further printing units can be provided one after the other in the transport direction. In particular, each printing unit can be designed to output printing ink with a different color, so that a multicolored image can be generated by using a plurality of printing units.
  • a control unit 105 is assigned to the detection unit 102 and the printing unit 103.
  • This control unit receives, on the one hand, a signal from the detection unit 102, which is indicative of the position of a closure 131 transversely and also along or parallel to the transport direction.
  • This signal can be indicative of the distance between the center of the closure and the center of the transport path 101, for example.
  • This signal is used by the control unit 105, in order to control the printing unit 103 in such a way that it ejects printing ink as a function of the signal, so that the printing ink is applied to the closure 131 and a print image is generated on the closure.
  • the printing unit 103 is designed as a digital printing unit for this purpose and is furthermore arranged in a stationary manner in relation to the transport path 101. So that closures 131 can be provided with a print image, the position of which is different with respect to the center of the transport path 101 or any other reference, the printing unit can comprise a print head with a print area that extends transversely to the transport direction in an area that is larger is than the diameter of the clasp. It is particularly preferred if the printing area transversely to the transport direction is just as wide as the transport path 101. Not only can deviations in the shape of the container and thus the position of the closure from the ideal shape be taken into account, but also in the case of disordered transport of the containers in the transport path , also deviations in the position of the containers themselves.
  • a further detection unit 104 can be arranged along the transport path 101, which determines the position of the containers in the transport direction. This can also be used advantageously in combination with the detection unit 102 in order to determine the position of the closure more precisely not only transversely to the transport direction but also in the transport direction, in particular in relation to the container.
  • the further detection unit 104 can be designed, for example, as a light barrier that detects the passage of a specific point on the transport path through a container.
  • This further detection unit 104 can also be connected to the control unit 105 and transmit to it a signal indicative of the position of the containers along the transport route. In addition to the signal of the detection unit 102 used to control the printing unit 103, the control unit 105 can also use this signal.
  • a treatment unit for treating the container or at least the closure is arranged upstream of the device or at least upstream of the printing unit 103.
  • This treatment unit can be designed as a pyrolysis device, plasma coating device or corona treatment device.
  • the closures can also be treated with such a treatment unit before the closures are applied to the container, so that the treatment unit can be provided in a closure device which is arranged upstream of the device 100.
  • the surface of the Closure is preferably treated so that it can be wetted better with the printing ink than the untreated surface of the closure.
  • the adhesion of the printing ink to the surface should also be improved by treating the surface compared to the untreated surface. This can be achieved, for example, by treating the closure to reduce or increase the surface tension of the surface to be printed on to a certain value.
  • the treatment unit is preferably arranged downstream of the labeling machine and upstream of the device 100.
  • a drying or aftertreatment device which dries or treats the applied printing ink on the closure, can be arranged downstream of the device 100 or at least downstream of the printing unit 103.
  • a UV tunnel or infrared tunnel with one or more corresponding radiation sources can be provided.
  • individual of these radiation sources can also be arranged after the printing unit 103 in the area of the transport path.
  • a transport device that guides the containers along or through the treatment unit can also be designed as a mass transporter.
  • Figures 2a and 2 B show in an exaggerated manner the deviation of an actual, to be printed and sealed container 130 compared to an ideal shape 230.
  • FIG Figure 2a a side view of a corresponding container 130 in the transport path 101 is shown for this purpose.
  • the container 230 is a body that is essentially rotationally symmetrical about an axis L.
  • Embodiments of the containers as bottles, in particular glass bottles or PET bottles, should be considered here, for example.
  • non-rotationally symmetrical containers can also have a shape that deviates from an imaginary ideal shape.
  • a container is assumed whose ideal shape is rotationally symmetrical with respect to the L axis. All the methods and devices that are described here can, however, also be applied to containers whose associated ideal shape is not rotationally symmetrical.
  • the process opens up the possibility of conveying the containers freely on the belt without the need for guide elements such as railings to guide the containers with millimeter precision must be or pairs of belts must take over the centering of the container to the print head.
  • This has the advantage that changeover work when changing production from one container shape to another can be largely avoided.
  • the axis L and the center of the closure 231 coincide.
  • the center line of the transport path with the axis L also forms a plane which is perpendicular to the transport path.
  • This ideal case relates to transport routes whose transport surface on which the containers are positioned during transport is exactly horizontal. In the case of the horizontally inclined transport surfaces, however, the above statements can be directly applied to the ideal transport of the containers provided.
  • the angle that the axis L forms with the horizontal or the horizontal should be mentioned in particular.
  • the axis L of each container always encloses the same angle with the horizontal or vertical.
  • the closure 131 of the container 130 usually has a position which deviates from the ideal position 231.
  • a common manufacturing tolerance of a 0.71 bottle made of PET or glass is usually around 1.8mm in diameter. In the case of a closure with a diameter of 30mm, this results in a corresponding requirement with regard to accuracy in the x and y directions. If the containers are also transported with play within the transport path 103, the entire position of the container can continue to deviate from the ideal position 230.
  • FIG Figure 2b The deviation of the actual position of the shutter 131 compared to the ideal position 231 is in FIG Figure 2b shown.
  • the position of the closure 131 of the container 130 in the transport path 101 is shown here with reference to the detection unit 102, which determines the position of the closure 131. It is in the Figure 2b a top view of the transport path and the container 130 located therein through the detection unit 102. It can be assumed to a good approximation that the position of the closure or the container on the conveyor belt 131 does not differ between the detection unit 102 and the printing unit 103 changed so that the detection unit 102 determined position of the shutter 131 can be used to control the printing unit.
  • the print head is preferably located in the immediate vicinity of the detection unit on the same section of tape, but not further than 1 m away.
  • the belt section between the detection unit and the printing unit runs in a straight line and the containers do not experience any acceleration, at least in this belt section. This prevents the containers from moving from the detection unit to the printing unit, ie from slipping on the conveyor belt
  • the position of the shutter 131 corresponds to that with reference to FIG Figures 2a and 2 B described ideal position of the shutter.
  • the control unit can contain a print image 250 in a memory assigned to it.
  • This print image which can be stored in a file, for example, is assigned further information that enables the printing unit to be activated for the purpose of applying the printing ink.
  • This additional information relates in particular to position details of the print image to be applied to the closure in relation to the printing unit 103.
  • This also includes information that enables the individual nozzles of a printing unit, for example designed as a digital printing unit, to be controlled.
  • the print image 250 stored in the memory can be used by the control unit together with the additional information in order to control the printing unit 103.
  • the stored print image corresponds here to the print image 260 to be applied to the containers with regard to its intended position.
  • the application of the printed image 250 to be applied would be in accordance with Fig. 2a mean a qualitatively poorer print image that is incorrectly positioned with respect to the center of the closure, for example, or that would not be completely printed on the container.
  • the control unit can modify the print image 250 stored in the memory and a print image to be applied to the closure 131 251 generate. This is preferably done completely software-based. This means that the original print image 250 is only digitally modified using, for example, a computer or a processor or similar devices.
  • the information which is also assigned to the print image and which enables the printing unit and, in particular, individual printing nozzles to be controlled, is changed based on the signal received from the detection unit.
  • the print image to be applied is then used to control the printing unit 103, which applies the print image 261 to the closure of the container instead of the print image 260.
  • z information can also be transmitted to the print head in order to compensate for container height differences such as those that occur when processing reusable PET.
  • the use of the depth information is particularly advantageous if the closures to be printed have indentations or elevations, for example a relief.
  • the control of the printing unit is changed digitally in such a way that the print image or printing ink is applied as a function of the actual position of the closure 131. This can be done much faster than a mechanical change in position of the printing unit, so that the throughput of containers can be very high.
  • the change in the position of the print image that is output by the printing unit 103 and is ultimately defined by the print image to be applied or the data file 251 representative of this for controlling the printing unit can also be based on the position of the closure in the direction of the transport path take place on a corresponding signal of the detection unit 102, but also of the detection unit 104.
  • a two-dimensional or three-dimensional coordinate system can be used within the control unit 105, in particular a Cartesian coordinate system. Transformations of the print image for generating / maintaining the print image to be applied can then take place in this coordinate system by coordinate transformation of the image points of the print image.
  • the same coordinate system or a coordinate system linked to the coordinate system by a known transformation can be used to control the printing unit or the printing nozzles of this printing unit.
  • the x, y, z rotational positions or contour information can be transmitted via a rotary encoder and a controlled or tracked transfer of coordinates to the printing module.
  • a container 130 is shown in the transport path 101, which in addition to the closure 131 also includes a label 431.
  • This label may be applied to at least a portion of the outer surface of the container 130.
  • at least one lighting device 421 and / or 422 is also provided in the device, which can illuminate the container 130 at least in an area that includes the label 431.
  • the lighting device can, for example, emit light in the visible range (441 and 442). This light is reflected from the surface of the container and from the label, in the dashed directions 451 and 452, respectively, shown by the arrow.
  • the detection unit 402 which includes appropriate optics for picking up light and can be designed as a camera, for example, is assigned an optical body 423.
  • the optical body 423 is arranged in such a way that at least part of the light 451 and 452 reflected by the container passes through it or penetrates into it.
  • the optical body is designed in such a way that it redirects this light by reflection and / or refraction of the light 451 or 452 in such a way that it strikes the optics of the detection unit and can be detected there.
  • the position of the label on the container and thus its relative orientation in the transport path 101 can then be determined on the basis of the detected, reflected light 451 or 452. For example, this relative orientation can be determined with reference to a reference variable.
  • the reference variable can be selected so that the center of the label on an ideally positioned container lies in a plane running perpendicular to the transport path and passing through the center line of the transport path. Furthermore, this reference variable can correspond to the case in which the label points in the transport direction of the container.
  • the optical body can include an opening or recess 424, the center or longitudinal axis of which lies on the optical axis of the optics of the detection unit.
  • the opening can be dimensioned so that all possible Occurring displacements of the closure 131 transversely to the transport direction can be detected by the optics through the opening.
  • the opening can have a diameter of 4 cm. Other diameters are also conceivable here.
  • the edge of the optical body which delimits the recess 424 can be used in an advantageous manner, for example, to support the reflection or refraction of the light reflected by the container into the optics.
  • this embodiment is suitable for printing the closure with regard to any orientation predetermined by a feature of the container and / or closure.
  • the print image can also be applied to the closure as a function of a geometric feature of the container or the closure and its orientation in relation to a reference orientation or ideal orientation.
  • Geometric features include, for example, certain shapes such as edges of the closure or bulges or notches in the container at a certain point on the container. Basically, these features are symmetry breaking features that define a certain preferred direction.
  • the printing unit can also be controlled as a function of the position and orientation of the container or closure determined by the detection unit.
  • the control unit can use the print image 550 stored in the memory as the print image 560 to be applied.
  • the information stored in addition to the print image with regard to the control of the printing unit 103, in particular the print nozzles, can be used to ultimately output printing ink in such a way that the print image 560 at the in Figure 5 position shown on the closure 131 is applied.
  • the method according to FIG Figure 3 can be used to take the position of the shutter into account when controlling the printing unit.
  • the print image stored in the memory of the control unit is on the one hand analogous to Figure 3 modified to control the printing unit depending on the displacement of the shutter 131 with respect to the reference position.
  • the print image stored in the memory is modified as a function of the angle ⁇ by which the label 431 is rotated with respect to the reference position.
  • the print image is rotated digitally or using software so that the alignment of the print image corresponds to the alignment of the label on the container to be printed. If the angle ⁇ is, for example, 25 °, the print image stored in the memory is also rotated by 25 ° in the same direction.
  • the two transformations of the print image stored in the memory can be carried out simultaneously or one after the other on the print image in order to determine the print image to be applied.
  • the known laws for affine transformation can be applied in two dimensions.
  • A is the rotation matrix in two-dimensional Cartesian space (using the angle of rotation a by which the container is rotated with respect to the reference) and s is the displacement vector corresponding to the displacement s. It is assumed, without loss of generality, that the center point of the coordinate system used here is in The center of the print image lies (central affine image). If only the displacement of the closure transverse to the transport direction is taken into account for the determination of the print image to be printed, then the component of the vector parallel to the transport direction of the container is used s always 0.
  • This calculation can be carried out for each original image point of the print image stored in the memory and thus the print image to be applied can be determined for a closure or container that is arbitrarily shifted and rotated with respect to the ideal position.
  • This transformation can be carried out even more effectively, for example, by a processor of the control unit that is optimized for parallel computing (for example a graphics processor).
  • a processor of the control unit that is optimized for parallel computing (for example a graphics processor).
  • the processors in control units that are generally used for control can also be used for this purpose, since they are ultimately floating point numbers.
  • the embodiment described is also suitable for printing closures of containers that have already been supplied to a distribution center in a container treatment plant. In such a distribution center there can be many, even different, containers. Since the device according to the in Fig. 4 described embodiment can ultimately recognize not only the position but also the content of the label, the printing unit can not only be controlled in such a way that the position and orientation of the print image to be applied to the closure is adapted to the position of the closure, but also the print image itself software-based selection based on the information received about the orientation, content and size of the label.

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  • Manufacturing & Machinery (AREA)
  • Ink Jet (AREA)

Claims (11)

  1. Dispositif (100) destiné à l'impression d'obturateurs (131) de récipients (130) fermés, comprenant un chemin de transport (101) destiné au transport des récipients, dans lequel une unité de détection (102) et une unité d'impression (103) destinée à l'impression de l'obturateur d'un récipient sont agencées l'une derrière l'autre dans la direction de transport, dans lequel l'unité de détection peut déterminer la position de l'obturateur de manière individuelle et transversalement par rapport à la direction de transport pour chaque récipient et peut transmettre un signal indiquant la position à une unité de commande (105) associée à l'unité de détection et à l'unité d'impression, dans lequel l'unité de commande est conçue pour commander l'unité d'impression afin d'appliquer sur l'obturateur de l'encre d'impression destinée à l'impression de l'obturateur en fonction de la position, dans lequel l'unité de détection (402) comprend un système optique destiné à l'enregistrement d'une image, un appareil d'éclairage (421, 422) destiné à éclairer au moins une partie d'un récipient (130) transporté dans le chemin de transport et un corps optique (423) associé audit système optique et destiné à dévier des rayons (451, 452), réfléchis par le récipient, du dispositif d'éclairage jusque dans le système optique, caractérisé en ce que l'unité de commande est conçue pour, grâce à un logiciel et en fonction de la lumière réfléchie, faire tourner une image d'impression stockée dans une mémoire et destinée à l'obturateur afin de générer une image d'impression (551) à appliquer en fonction de la position d'une étiquette sur le récipient, et pour commander l'unité d'impression (103) en se basant sur l'image d'impression à appliquer afin d'éjecter l'encre d'impression.
  2. Dispositif (100) selon la revendication 1, dans lequel l'unité de commande (105) destinée à commander l'éjection de l'encre d'impression est conçue pour adapter à la position, grâce à un logiciel, une image d'impression destinée à l'obturateur et stockée dans une mémoire afin d'obtenir une image d'impression (251) à appliquer et commander l'unité d'impression (103) en se basant sur l'image d'impression à appliquer afin d'éjecter l'encre d'impression.
  3. Dispositif (100) selon la revendication 1 ou 2, dans lequel l'unité d'impression (103) est une unité d'impression numérique et comprend une zone d'impression dont la largeur transversalement par rapport à la direction de transport est supérieure au diamètre d'un obturateur (131) à imprimer et est au plus égale à la largeur du chemin de transport (101).
  4. Dispositif (100) selon l'une quelconque des revendications 1 à 3, dans lequel l'unité d'impression (103) est agencée de manière fixe.
  5. Dispositif (100) selon l'une quelconque des revendications 1 à 4, dans lequel l'appareil d'éclairage (421, 422) peut émettre de la lumière dans le domaine visible et le corps optique (423) présente un indice de réfraction supérieur à 1 ou est constitué d'un matériau réfléchissant.
  6. Dispositif (100) selon l'une quelconque des revendications 1 à 5, dans lequel le corps optique (423) est agencé de manière concentrique par rapport au système optique et présente une sortie (424) dont le centre est situé sur l'axe optique du système optique.
  7. Procédé d'impression d'obturateurs (131) de récipients (130) fermés, dans lequel les récipients sont transportés le long d'un chemin de transport (101) et une unité de détection (102) détermine la position de l'obturateur transversalement par rapport à la direction de transport pour chaque récipient et une unité d'impression (103) applique de l'encre d'impression afin de générer une image d'impression sur l'obturateur, dans lequel l'éjection de l'encre d'impression est commandée par une unité de commande (105) en se basant sur un signal émis par l'unité de détection (102) et indiquant la position de l'obturateur transversalement par rapport à la direction de transport, dans lequel les récipients (130) fermés à imprimer présentent une étiquette (431) et un appareil d'éclairage (421, 422) éclaire les récipients au moins dans une zone présentant au moins une partie de l'étiquette et de la lumière réfléchie par ladite zone est acheminée à travers un corps optique (424) jusqu'à un système optique de l'unité de détection (102), caractérisé en ce qu'une image d'impression stockée dans une mémoire et destinée à l'obturateur (131) est tournée, grâce à un logiciel et en fonction de la lumière réfléchie, afin de générer une image d'impression (551) à appliquer en fonction de la position de l'étiquette (431) sur le récipient et l'unité d'impression (103) est commandée en se basant sur l'image d'impression à appliquer afin d'éjecter l'encre d'impression.
  8. Procédé selon la revendication 7, dans lequel la position est déterminée de manière optique par l'unité de détection (102).
  9. Procédé selon la revendication 7 ou 8, dans lequel les récipients sont transportés de manière aléatoire au moins en ce qui concerne leur position transversalement par rapport au chemin de transport.
  10. Procédé selon l'une quelconque des revendications 7 à 9, dans lequel, afin de commander l'éjection de l'encre d'impression, une image d'impression destinée à l'obturateur et stockée dans une mémoire est adaptée à la position grâce à un logiciel afin d'obtenir une image d'impression (251) à appliquer et l'unité d'impression (103) est commandée en se basant sur l'image d'impression à appliquer afin d'éjecter l'encre d'impression.
  11. Procédé selon l'une quelconque des revendications 7 à 10, dans lequel l'unité d'impression (103) est commandée par l'unité de commande (105) en se basant sur la lumière réfléchie acheminée jusqu'à l'unité de détection (102) afin d'éjecter l'encre d'impression.
EP16809037.1A 2016-03-08 2016-12-09 Dispositif d'impression de bouchons de récipients fermés Active EP3426495B1 (fr)

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DE102016203722.6A DE102016203722A1 (de) 2016-03-08 2016-03-08 Vorrichtung zum Bedrucken von Verschlüssen verschlossener Behälter
PCT/EP2016/080378 WO2017153012A1 (fr) 2016-03-08 2016-12-09 Dispositif d'impression de bouchons de récipients fermés

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DE102018212623A1 (de) * 2018-07-27 2020-01-30 Krones Ag Verfahren zum Aufbringen einer Funktions-Schicht auf einen Behälter
DE102019107940B4 (de) * 2019-03-27 2022-07-14 Tampoprint Ag Vorrichtung zum Bedrucken von Kronkorken
DE102019125850A1 (de) * 2019-09-25 2021-03-25 Krones Aktiengesellschaft Verfahren und System zur Ausstattung von Behältern und zur Bedruckung von Schraubverschlüssen für die Behälter
IT202100004874A1 (it) * 2021-03-02 2022-09-02 Pelliconi & C Spa Apparato per la stampa digitale di chiusure per contenitori.

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JPH04216989A (ja) * 1990-12-17 1992-08-07 Kuwabara Yasunaga 印刷方法
DE10146820B4 (de) * 2001-09-19 2005-02-24 Tampoprint Gmbh Dekoriervorrichtung und Verfahren zum Dekorieren von Oberflächen
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EP3426495A1 (fr) 2019-01-16
CN108778760A (zh) 2018-11-09
DE102016203722A1 (de) 2017-09-14
CN108778760B (zh) 2020-04-10
WO2017153012A1 (fr) 2017-09-14
US20190084714A1 (en) 2019-03-21

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