WO2011027012A1 - Printer device using inkjet technology - Google Patents

Printer device using inkjet technology Download PDF

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Publication number
WO2011027012A1
WO2011027012A1 PCT/ES2010/070442 ES2010070442W WO2011027012A1 WO 2011027012 A1 WO2011027012 A1 WO 2011027012A1 ES 2010070442 W ES2010070442 W ES 2010070442W WO 2011027012 A1 WO2011027012 A1 WO 2011027012A1
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WO
WIPO (PCT)
Prior art keywords
printing
support
movements
band
ink injection
Prior art date
Application number
PCT/ES2010/070442
Other languages
Spanish (es)
French (fr)
Inventor
José Vicente TOMÁS CLARAMONTE
Antonio Manuel Querol Villalba
Rafael VICENT ABELLÁ
Original Assignee
Kerajet, S.A.
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 Kerajet, S.A. filed Critical Kerajet, S.A.
Priority to EP10813377.8A priority Critical patent/EP2476558A4/en
Publication of WO2011027012A1 publication Critical patent/WO2011027012A1/en

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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
    • B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
    • 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
    • B41F17/24—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles
    • 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
    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/08—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles characterised by being applied to printers having transversely- moving carriages
    • 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
    • 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
    • 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
    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01—Embodiments of or processes related to ink-jet heads
    • B41J2202/20—Modules

Definitions

  • the present invention refers to a printing device by means of "Inkjet” technology, whose essential purpose is to provide a printing device, especially applicable to the decoration of ceramic tiles without ruling out other applications, in which the failure of one or more of the printhead nozzles does not cause major defects in the corresponding decoration, for which the movements of heads and / or the band are combined Conveyor and objects to be printed in such a way that the movements required in the printheads are not of great amplitude and in such a way that the advantages of the high productivity benefits of the printing machines with stationary printheads are combined, with the high qualities facilitated by printers with mobile printheads of type "plotter", avoiding the respect tivas disadvantages of great defects in the decorations before failures of the injectors and of low productivity by necessity of manual feeding of the object to print; for which the invention combines the mobility of a conveyor belt with that of at least one printhead holder that acts as a multi-axis Cartesian robot, these movements being governed by
  • printers with "Inkjet” inkjet technology of various functionalities and fields of application are known in the market.
  • "plotter” printers are known, in which the object to be decorated or printed (paper, vinyl, etc.) is conducted through an area in the that print heads are moved, that by oscillating movements in the direction perpendicular to the advance of the object to be printed and with small sequential steps of said object, high quality images are produced, suitable for decorating posters, posters, tiles and others.
  • these types of printers have drawbacks related to low productivity, needing to be fed from the objects to be decorated, usually manually and expensively in terms of the time taken.
  • printers are known in which the printheads remain immobile, said heads being fixed and distributed so as to cover the width of the object to be decorated, moving in this case only said object, these printers being called “single-pass" ", an example of this type of printers is WO2000021760A1 / EP1038689B1 / ES2219068T3 as” DEVICE FOR DECORATION OF CERAMIC TILES ".
  • the invention consists of a printing device by means of inkjet technology "Inkjet” which has printheads. printing, each of them being provided with various injectors, and used in prints (called “single-pass”) where the print heads are motionless and the object to be printed moves under them.
  • the device thereof has a conveyor belt with movement capacity according to an X direction and additionally in one direction and perpendicular to it, the objects to be printed on said band; said device also presenting at least one head support on which several of said print heads are mounted; each support having its own means of movement, at least according to a direction parallel to said X direction and according to one or more directions other than said direction parallel to X direction; the movements of the band and each support being governed by a programmable controller, so that the printing that is carried out can combine movements of the objects to be printed and movements of the print heads in all those directions.
  • said print heads are distributed in the corresponding support so that they are oriented in perpendicular and oblique directions with respect to the main plane of the conveyor belt, thus allowing simultaneous printing of the entire width of the object to be to print .
  • the displacements of the support in that direction parallel to the X direction occur between a waiting position and an end-of-travel position established in a portion of the length of the conveyor belt.
  • the referred one or more directions other than the direction parallel to the X direction, in the displacements of the printhead holder may consist of at least one transverse direction U with respect to the said X direction that facilitates the interlacing of the printing of injectors of the same head, as well as the interlacing of the printing of injectors of different heads.
  • the print head support in addition to these parallel and transverse directions with respect to the X direction of the web, has a vertical travel direction that allows the height of the print and the access of the print to be adjusted. maintenance stations; so that said support can act as a three-axis Cartesian robot.
  • said programmable controller manages the movements of the movable band and support elements, so that said movements are executed simultaneously, sequentially or with a combination of both, for either of the two directions (forward / reverse) of each direction of travel existing in the sliding elements band and supports; enabling printing both in motion and in stopping one, several or all movable elements.
  • said programmable controller that governs the movements of the web and the printhead holders is additionally responsible for managing the printing execution by commanding the electronic signals of the injectors of the printheads
  • the number of printhead holders is sized according to the number of inks to be used in the corresponding print.
  • the device of the invention has relative advantages in that it gives movement to the supports of the print heads used in impressions with fixed heads, and / or the conveyor belt, being able to combine that movement of the supports with the movement of the object to be decorated, thereby combining the high-performance features of single-pass printers with the high-quality features of plotter-type printers ", although the requirement of the movements of the heads in the device of the invention in its case does not need to be as wide as in the" plotter "printers, since the width to be decorated of the object is covered by the special distribution of heads Print on each head support.
  • the device thereof is capable of working simultaneously with the band in operation (non-stop) and decorating the object by consecutive passes of the printheads with a certain interlacing, by movement oscillating of the head supports in directions parallel to those of the movement of the conveyor belt and perpendicular to it.
  • the device thereof is capable of working simultaneously with the band in operation (non-stop) and decorating the object by consecutive passes of the printheads with an interlaced success, by the oscillating movement of the transport band in directions perpendicular to those of the movement of the object to be decorated.
  • the device of the invention behaves as a "single-pass" machine in which the printhead supports, and therefore also said heads, have a total mobility in three axes, two of them parallel to the plane of placement of the object to be printed and another perpendicular to that plane to provide, in the case of said perpendicular axis the advantages of allowing adjustments of the printing height and facilitate functionalities of a maintenance station.
  • Figure 1. Represents a top and schematic plan view of a printing device by inkjet technology made according to the present invention.
  • Figure 2. Represents a view analogous to that of the previous figure 1, showing the ability of the device to decorate an object by moving a print head support on said object.
  • Figure 3. It is a view analogous to that of the previous figure 2 which in this case shows the ability of the device to decorate the said object when it is moved on a conveyor belt under said printhead support.
  • Figure 4. It is a profile and schematic view of the device of the previous three figures, in which various directions of movement in the conveyor belt and the printhead support of the device are represented.
  • Figure 5. It is a front view that in this case shows the ability of the badge to regulate the printing height of said print head support on the conveyor belt (position 5a to 5b) and the movement of the band in the X direction , perpendicular to the direction of advance of the object to be decorated (5c).
  • Figure 6. It is a perspective view, which in this case shows the capacity of the device for decoration by combined action of the movement of said head supports in an X direction, parallel to the advance of the object to be decorated, with a a certain displacement of the printing band in a direction Y perpendicular to it.
  • Figure 7. It is a perspective view, which in this case shows the capacity of the device for the introduction of material (7a), decoration by combined action of the movement of said head supports in an X direction, parallel to the advance of the object to be decorated (7b), and the output of the decorated object (7c).
  • the printing device by means of "Inkjet” technology of this example of the invention has a conveyor belt 2 in which the object to be printed 1 is located, as well as a support 4 in which various printheads are distributed. impression 3, as can be seen in all figures.
  • the heads 3 are placed on the support 4 so that they are distributed perpendicularly and obliquely with respect to the path 5 of the conveyor belt 2 to facilitate decorations throughout the width of the object to be decorated 1.
  • the support 4 has its own means of movement 6, as can be seen in Figure 4, which allows the support to be moved in a direction parallel to that of said path 5 from a waiting position 8 to a limit position 9, as shown in figure 2.
  • these means of movement 6 of the support 4 facilitate its horizontal movement but in a direction perpendicular to the referred trajectory 5 of the band 2, which allows the interlacing of printing of injectors of the same printhead or of different printheads. injection, especially between adjacent printheads.
  • the conveyor belt has means that facilitate its horizontal movement according to a perpendicular direction Y to the referred trajectory 5 of the objects to be decorated 1, which allows the interlacing of printing of injectors of the same printhead or of different heads of injection, especially between adjacent printheads.
  • the displacement means 6 of the support 4 are applied to a vertical axis perpendicular to the previous ones, thus allowing the adjustment of the printing height and access to maintenance stations, all these possible trajectories in the displacement having been referred to as 7 of the support 4 that determine a movement in said support 4 similar to that of a three-axis Cartesian robot.
  • the printheads 3 may act by decorating the object 1 both when the transport band 2 is in motion and fixes the position of the support 4, as both are in motion or the band 2 is stopped and the support 4 is in motion, in addition to those movements Band 2 and support 4 may be simultaneous or sequential. In addition, these movements may be in each direction in two directions, that is, forward and backward.
  • All those movements of the band 2 and the support 4 are managed by a programmable controller that also manages the execution of the print by commanding the electronic signals that are associated with the nozzles of each printhead 3.
  • a single support 4 is shown in the present example, in other embodiments a plurality of supports 4 are available whose number is defined as a function of the number of inks used in a given decoration; being synchronized all the movements of all the supports 4 and the transport band 2 by means of said programmable controller.

Landscapes

  • Ink Jet (AREA)

Abstract

The invention relates to a printer device using inkjet technology. Said device includes a conveyor belt (2), moving in a direction X, on which the objects to be printed (1) are placed, and also includes at least one printhead (3) support (4). Each support (4) has its own means (6) for moving in several directions, the movements of the belt (2) and each support (4) being controlled by a programmable logic controller; such that the movements of said objects (1) and said printheads (3) can be combined during the printing process.

Description

DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTAPRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención, tal y como se expresa en el enunciado de esta memoria descriptiva, se refiere a un dispositivo de impresión mediante tecnología "Inkjet" (Inyección de tinta), cuya finalidad esencial consiste en proporcionar un dispositivo de impresión, especialmente aplicable a la decoración de baldosas cerámicas sin descartar otras aplicaciones, en él que el fallo de alguno o varios de los inyectores de los cabezales de impresión no provoque grandes defectos en la decoración correspondiente, para lo cual se combinan los movimientos de cabezales y/o de la banda transportadora y objetos a imprimir de manera que los movimientos requeridos en los cabezales de impresión no sean de gran amplitud y de manera que se aúnen las ventajas de las prestaciones de alta productividad de las máquinas impresoras con cabezales de impresión inmóviles, con las altas calidades facilitadas por las impresoras con cabezales de impresión móviles de tipo "plotter", evitándose las respectivas desventajas de grandes defectos en las decoraciones ante fallos de los inyectores y de baja productividad por necesidad de alimentación manual del objeto a imprimir; para lo cual la invención combina la movilidad de una banda transportadora con la de al menos un soporte de cabezales de impresión que actúa como un robot cartesiano de varios ejes, gobernándose esos movimientos mediante un controlador programable que además se puede encargar de la gestión de la ejecución de la impresión correspondiente.  The present invention, as expressed in the statement of this specification, refers to a printing device by means of "Inkjet" technology, whose essential purpose is to provide a printing device, especially applicable to the decoration of ceramic tiles without ruling out other applications, in which the failure of one or more of the printhead nozzles does not cause major defects in the corresponding decoration, for which the movements of heads and / or the band are combined Conveyor and objects to be printed in such a way that the movements required in the printheads are not of great amplitude and in such a way that the advantages of the high productivity benefits of the printing machines with stationary printheads are combined, with the high qualities facilitated by printers with mobile printheads of type "plotter", avoiding the respect tivas disadvantages of great defects in the decorations before failures of the injectors and of low productivity by necessity of manual feeding of the object to print; for which the invention combines the mobility of a conveyor belt with that of at least one printhead holder that acts as a multi-axis Cartesian robot, these movements being governed by a programmable controller that can also be responsible for managing the execution of the corresponding printing.
ANTECEDENTES DE LA INVENCIÓN  BACKGROUND OF THE INVENTION
Son conocidas en el mercado diversas impresoras con tecnología de inyección de tinta "Inkjet" de diversas funcionalidades y campos de aplicación. Dentro de la categoría de impresoras de formato ancho (wide-format ) , son conocidas impresoras de tipo "plotter", en las que el objeto a decorar o imprimir (papel, vinilos, etc.) es conducido a través de una zona en la que se mueven cabezales de impresión, que por movimientos oscilantes en la dirección perpendicular a la de avance del objeto a imprimir y con pequeños pasos secuenciales de dicho objeto, se producen imágenes de una gran calidad, adecuadas a la decoración de carteles, posters, azulejos y otros. No obstante, este tipo de impresoras presentan inconvenientes relativos a una baja productividad, necesitando ser alimentadas de los objetos a decorar, normalmente de manera manual y costosa en términos del tiempo empleado. Various printers with "Inkjet" inkjet technology of various functionalities and fields of application are known in the market. Within the category of wide-format printers, "plotter" printers are known, in which the object to be decorated or printed (paper, vinyl, etc.) is conducted through an area in the that print heads are moved, that by oscillating movements in the direction perpendicular to the advance of the object to be printed and with small sequential steps of said object, high quality images are produced, suitable for decorating posters, posters, tiles and others. However, these types of printers have drawbacks related to low productivity, needing to be fed from the objects to be decorated, usually manually and expensively in terms of the time taken.
Por otra parte, son conocidas impresoras en las que los cabezales de impresión permanecen inmóviles, encontrándose dichos cabezales fijados y distribuidos de manera que cubren el ancho del objeto a decorar, moviéndose en este caso únicamente dicho objeto, denominándose a estas impresoras "single-pass", siendo un ejemplo de este tipo de impresoras la patente WO2000021760A1 / EP1038689B1 / ES2219068T3 enunciada como "DISPOSITIVO PARA DECORACIÓN DE BALDOSAS CERÁMICAS". Estas impresoras de tipo "single-pass" presentan inconvenientes relativos a que al estar fijos los inyectores de los cabezales de impresión no permiten las calidades de impresión de las impresoras de tipo "plotter" reseñadas anteriormente, dándose el inconveniente adicional de que un fallo en un inyector o grupo de inyectores provoca grandes defectos en la decoración del objeto, tales como rayas, bandas u otros, que podrían minimizarse si además de moverse el objeto a decorar se movieran los cabezales de impresión.  On the other hand, printers are known in which the printheads remain immobile, said heads being fixed and distributed so as to cover the width of the object to be decorated, moving in this case only said object, these printers being called "single-pass" ", an example of this type of printers is WO2000021760A1 / EP1038689B1 / ES2219068T3 as" DEVICE FOR DECORATION OF CERAMIC TILES ". These "single-pass" type printers have drawbacks related to the fact that when the nozzles of the printheads are fixed, they do not allow the printing qualities of the "plotter" printers described above, given the additional inconvenience of failure in an injector or group of nozzles causes major defects in the decoration of the object, such as stripes, bands or others, which could be minimized if, in addition to moving the object to be decorated, the print heads were moved.
DESCRIPCIÓN DE LA INVENCIÓN  DESCRIPTION OF THE INVENTION
Para lograr los objetivos y evitar los inconvenientes indicados en anteriores apartados, la invención consiste en un dispositivo de impresión mediante tecnología de inyección de tinta "Inkjet" que cuenta con cabezales de impresión, estando dotado cada uno de ellos de diversos inyectores, y empleados en impresiones (denominadas "single-pass") donde los cabezales de impresión son inmóviles y el objeto a imprimir se mueve bajo ellos. To achieve the objectives and avoid the inconveniences indicated in previous sections, the invention consists of a printing device by means of inkjet technology "Inkjet" which has printheads. printing, each of them being provided with various injectors, and used in prints (called "single-pass") where the print heads are motionless and the object to be printed moves under them.
Novedosamente, según la invención, el dispositivo de la misma cuenta con una banda transportadora con capacidad de movimiento según una dirección X y adicionalmente en una dirección y perpendicular a ésta, ubicándose en dicha banda los objetos a imprimir; presentando además dicho dispositivo al menos un soporte de cabezales en el que se encuentran montados varios de los referidos cabezales de impresión; teniendo cada soporte medios propios de desplazamiento, al menos según una dirección paralela a la referida dirección X y según una o más direcciones distintas de la citada dirección paralela a la dirección X; gobernándose los movimientos de la banda y de cada soporte mediante un controlador programable, de manera que la impresión que se efectúa puede combinar movimientos de los objetos a imprimir y movimientos de los cabezales de impresión en todas esas direcciones.  Novelly, according to the invention, the device thereof has a conveyor belt with movement capacity according to an X direction and additionally in one direction and perpendicular to it, the objects to be printed on said band; said device also presenting at least one head support on which several of said print heads are mounted; each support having its own means of movement, at least according to a direction parallel to said X direction and according to one or more directions other than said direction parallel to X direction; the movements of the band and each support being governed by a programmable controller, so that the printing that is carried out can combine movements of the objects to be printed and movements of the print heads in all those directions.
Según la realización preferente de la invención, los referidos cabezales de impresión se distribuyen en el soporte correspondiente de manera que quedan orientados según direcciones perpendiculares y oblicuas respecto del plano principal de la banda transportadora, permitiendo asi la impresión simultánea de todo el ancho del objeto a imprimir .  According to the preferred embodiment of the invention, said print heads are distributed in the corresponding support so that they are oriented in perpendicular and oblique directions with respect to the main plane of the conveyor belt, thus allowing simultaneous printing of the entire width of the object to be to print .
Por otra parte, en esa realización preferente de la invención los desplazamientos del soporte en esa dirección paralela a la dirección X se dan entre una posición de espera y una posición de fin de carrera establecidas en una porción de la longitud de la banda transportadora.  On the other hand, in that preferred embodiment of the invention, the displacements of the support in that direction parallel to the X direction occur between a waiting position and an end-of-travel position established in a portion of the length of the conveyor belt.
La referida una o más direcciones distintas de la dirección paralela a la dirección X, en los desplazamientos del soporte de los cabezales de impresión puede consistir al menos en una dirección transversal U respecto de la referida dirección X que facilite el entrelazado de la impresión de inyectores de un mismo cabezal, asi como el entrelazado de la impresión de inyectores de distintos cabezales . The referred one or more directions other than the direction parallel to the X direction, in the displacements of the printhead holder may consist of at least one transverse direction U with respect to the said X direction that facilitates the interlacing of the printing of injectors of the same head, as well as the interlacing of the printing of injectors of different heads.
En la realización preferente de la invención, además de esas direcciones paralela y transversal respecto de la dirección X de la banda, el soporte de los cabezales de impresión cuenta con una dirección de desplazamiento vertical que permite ajusfar la altura de la impresión y el acceso de estaciones de mantenimiento; de manera que dicho soporte puede actuar como un robot cartesiano de tres ejes.  In the preferred embodiment of the invention, in addition to these parallel and transverse directions with respect to the X direction of the web, the print head support has a vertical travel direction that allows the height of the print and the access of the print to be adjusted. maintenance stations; so that said support can act as a three-axis Cartesian robot.
Por otra parte, en la realización preferente de la invención, el mencionado controlador programable gestiona los movimientos de los elementos desplazables de banda y soportes, de manera que dichos movimientos se ejecutan simultáneos, secuenciales o con una combinación de ambos, para cualquiera de los dos sentidos (avance/retroceso) de cada dirección de desplazamiento existente en los elementos desplazables banda y soportes; posibilitando la impresión tanto en movimiento como en parada de uno, varios o todos los elementos desplazables.  On the other hand, in the preferred embodiment of the invention, said programmable controller manages the movements of the movable band and support elements, so that said movements are executed simultaneously, sequentially or with a combination of both, for either of the two directions (forward / reverse) of each direction of travel existing in the sliding elements band and supports; enabling printing both in motion and in stopping one, several or all movable elements.
Además, en dicha realización preferente de la invención, el mencionado controlador programable que gobierna los movimientos de la banda y los soportes de los cabezales de impresión se encarga adicionalmente de la gestión de la ejecución de la impresión comandando las señales electrónicas de los inyectores de los cabezales de impresión .  In addition, in said preferred embodiment of the invention, said programmable controller that governs the movements of the web and the printhead holders is additionally responsible for managing the printing execution by commanding the electronic signals of the injectors of the printheads
Según diversas realizaciones de la invención, el número de soportes para cabezales de impresión se dimensiona en función del número de tintas a usar en la impresión que corresponda.  According to various embodiments of the invention, the number of printhead holders is sized according to the number of inks to be used in the corresponding print.
Con la estructura que se ha descrito, el dispositivo de la invención presenta ventajas relativas a que dota de movimiento a los soportes de los cabezales de impresión empleados en impresiones con cabezales fijos, y/o a la banda de transporte, pudiendo combinar ese movimiento de los soportes con el movimiento del objeto a decorar, con lo que se aúnan las prestaciones de alta productividad de las impresoras "single-pass" con las prestaciones de alta calidad de las impresoras de tipo "plotter", aunque el requerimiento de los movimientos de los cabezales en el dispositivo de la invención en su caso no necesita ser de tanta amplitud como en las impresoras "plotter", ya que el ancho a decorar del objeto queda cubierto por la especial distribución de cabezales de impresión en cada soporte de cabezales . With the structure described above, the device of the invention has relative advantages in that it gives movement to the supports of the print heads used in impressions with fixed heads, and / or the conveyor belt, being able to combine that movement of the supports with the movement of the object to be decorated, thereby combining the high-performance features of single-pass printers with the high-quality features of plotter-type printers ", although the requirement of the movements of the heads in the device of the invention in its case does not need to be as wide as in the" plotter "printers, since the width to be decorated of the object is covered by the special distribution of heads Print on each head support.
Mediante el dispositivo de la invención se permite emplear las funcionalidades de un "plotter" o de una impresora "single-pass", o una combinación de ambas, con lo que se incrementa la flexibilidad en las impresiones según la productividad y la calidad que se requiera.  By means of the device of the invention, it is possible to use the functionalities of a "plotter" or a "single-pass" printer, or a combination of both, thereby increasing the flexibility in printing according to the productivity and quality require.
En la realización preferente de la invención, el dispositivo de la misma es capaz de trabajar simultáneamente con la banda en funcionamiento (non-stop) y realizar la decoración del objeto mediante pasadas consecutivas de los cabezales de impresión con un cierto entrelazado, mediante el movimiento oscilante de los soportes de los cabezales en direcciones paralelas a los del movimiento de la banda de transporte y perpendiculares a ésta.  In the preferred embodiment of the invention, the device thereof is capable of working simultaneously with the band in operation (non-stop) and decorating the object by consecutive passes of the printheads with a certain interlacing, by movement oscillating of the head supports in directions parallel to those of the movement of the conveyor belt and perpendicular to it.
En otra forma de realización preferente de la invención, el dispositivo de la misma es capaz de trabajar simultáneamente con la banda en funcionamiento (non-stop) y realizar la decoración del objeto mediante pasadas consecutivas de los cabezales de impresión con un acierto entrelazado, mediante el movimiento oscilante de la banda de transporte en direcciones perpendiculares a los del movimiento del objeto a decorar.  In another preferred embodiment of the invention, the device thereof is capable of working simultaneously with the band in operation (non-stop) and decorating the object by consecutive passes of the printheads with an interlaced success, by the oscillating movement of the transport band in directions perpendicular to those of the movement of the object to be decorated.
Por otra parte, el dispositivo de la invención se comporta como una máquina "single-pass" en la que los soportes de los cabezales de impresión, y por tanto también dichos cabezales, presentan una total movilidad en tres ejes, dos de ellos paralelos al plano de colocación del objeto a imprimir y otro perpendicular a ese plano para aportar, en el caso de dicho eje perpendicular las ventajas de permitir ajustes de la altura de impresión y facilitar funcionalidades de una estación de mantenimiento. On the other hand, the device of the invention behaves as a "single-pass" machine in which the printhead supports, and therefore also said heads, have a total mobility in three axes, two of them parallel to the plane of placement of the object to be printed and another perpendicular to that plane to provide, in the case of said perpendicular axis the advantages of allowing adjustments of the printing height and facilitate functionalities of a maintenance station.
A continuación, para facilitar una mejor comprensión de esta memoria descriptiva y formando parte integrante de la misma, se acompañan unas figuras en las que con carácter ilustrativo y no limitativo se ha representado el objeto de la invención.  Next, in order to facilitate a better understanding of this descriptive report and as an integral part thereof, some figures are attached in which the object of the invention has been shown as an illustrative and non-limiting nature.
BREVE DESCRIPCIÓN DE LAS FIGURAS  BRIEF DESCRIPTION OF THE FIGURES
Figura 1.- Representa una vista en planta superior y esquemática de un dispositivo de impresión mediante tecnología de inyección de tinta realizado según la presente invención.  Figure 1.- Represents a top and schematic plan view of a printing device by inkjet technology made according to the present invention.
Figura 2.- Representa una vista análoga a la de la anterior figura 1, mostrando la capacidad del dispositivo para decorar un objeto mediante el desplazamiento de un soporte de cabezales de impresión sobre dicho objeto.  Figure 2.- Represents a view analogous to that of the previous figure 1, showing the ability of the device to decorate an object by moving a print head support on said object.
Figura 3.- Es una vista análoga a la de la anterior figura 2 que en este caso muestra la capacidad del dispositivo para decorar el referido objeto al desplazarse éste en una banda transportadora bajo el mencionado soporte de cabezales de impresión.  Figure 3.- It is a view analogous to that of the previous figure 2 which in this case shows the ability of the device to decorate the said object when it is moved on a conveyor belt under said printhead support.
Figura 4.- Es una vista de perfil y esquemática del dispositivo de las anteriores tres figuras, en la que se representan diversas direcciones de movimiento en la banda transportadora y el soporte de cabezales de impresión del dispositivo.  Figure 4.- It is a profile and schematic view of the device of the previous three figures, in which various directions of movement in the conveyor belt and the printhead support of the device are represented.
Figura 5.- Es una vista frontal que en este caso muestra la capacidad del distintivo para regular la altura de impresión del mencionado soporte de cabezales de impresión sobre la banda transportadora (posición de 5a a 5b) y el movimiento de la banda en dirección X, perpendicular a la dirección de avance del objeto a decorar (5c) . Figure 5.- It is a front view that in this case shows the ability of the badge to regulate the printing height of said print head support on the conveyor belt (position 5a to 5b) and the movement of the band in the X direction , perpendicular to the direction of advance of the object to be decorated (5c).
Figura 6.- Es una vista en perspectiva, que en este caso muestra la capacidad del dispositivo para la decoración mediante acción combinada del desplazamiento de los mencionados soportes de cabezales en una dirección X, paralela a la del avance del objeto a decorar, con un cierto desplazamiento de la banda de impresión en una dirección Y perpendicular a ésta.  Figure 6.- It is a perspective view, which in this case shows the capacity of the device for decoration by combined action of the movement of said head supports in an X direction, parallel to the advance of the object to be decorated, with a a certain displacement of the printing band in a direction Y perpendicular to it.
Figura 7.- Es una vista en perspectiva, que en este caso muestra la capacidad del dispositivo para la introducción de material (7a) , decoración mediante acción combinada del desplazamiento de los mencionados soportes de cabezales en una dirección X, paralela a la del avance del objeto a decorar (7b), y la salida del objeto decorado (7c) .  Figure 7.- It is a perspective view, which in this case shows the capacity of the device for the introduction of material (7a), decoration by combined action of the movement of said head supports in an X direction, parallel to the advance of the object to be decorated (7b), and the output of the decorated object (7c).
DESCRIPCIÓN DE UN EJEMPLO DE REALIZACIÓN DE LA INVENCIÓN  DESCRIPTION OF AN EXAMPLE OF EMBODIMENT OF THE INVENTION
Seguidamente se realiza una descripción de un ejemplo de la invención haciendo referencia a la numeración adoptada en las figuras.  Next, a description of an example of the invention is made with reference to the numbering adopted in the figures.
Asi, el dispositivo de impresión mediante tecnología "Inkjet" de este ejemplo de la invención cuenta con una banda de transporte 2 en la que se ubica el objeto a imprimir 1, así como con un soporte 4 en el que se encuentran distribuidos diversos cabezales de impresión 3, tal y como puede verse en todas las figuras.  Thus, the printing device by means of "Inkjet" technology of this example of the invention has a conveyor belt 2 in which the object to be printed 1 is located, as well as a support 4 in which various printheads are distributed. impression 3, as can be seen in all figures.
Los cabezales 3 se colocan en el soporte 4 de manera que quedan distribuidos de forma perpendicular y oblicua respecto de la trayectoria 5 de la banda transportadora 2 para facilitar decoraciones en todo el ancho del objeto a decorar 1.  The heads 3 are placed on the support 4 so that they are distributed perpendicularly and obliquely with respect to the path 5 of the conveyor belt 2 to facilitate decorations throughout the width of the object to be decorated 1.
El soporte 4 cuenta con medios propios de desplazamiento 6, según puede verse en la figura 4, que permiten mover al soporte en una dirección paralela a la de la referida trayectoria 5 desde una posición de espera 8 hasta una posición fin de carrera 9, según se aprecia en la figura 2. The support 4 has its own means of movement 6, as can be seen in Figure 4, which allows the support to be moved in a direction parallel to that of said path 5 from a waiting position 8 to a limit position 9, as shown in figure 2.
Además, esos medios propios de desplazamientos 6 del soporte 4 facilitan su movimiento horizontal pero según una dirección perpendicular a la referida trayectoria 5 de la banda 2, lo que permite el entrelazado de impresión de inyectores de un mismo cabezal de impresión o de diferentes cabezales de inyección, en especial entre cabezales de impresión adyacentes.  In addition, these means of movement 6 of the support 4 facilitate its horizontal movement but in a direction perpendicular to the referred trajectory 5 of the band 2, which allows the interlacing of printing of injectors of the same printhead or of different printheads. injection, especially between adjacent printheads.
Alternativamente, la banda de transporte cuenta con medios que facilitan su movimiento horizontal según una dirección perpendicular Y a la referida trayectoria 5 de los objetos a decorar 1, lo que permite el entrelazado de impresión de inyectores de un mismo cabezal de impresión o de diferentes cabezales de inyección, en especial entre cabezales de impresión adyacentes.  Alternatively, the conveyor belt has means that facilitate its horizontal movement according to a perpendicular direction Y to the referred trajectory 5 of the objects to be decorated 1, which allows the interlacing of printing of injectors of the same printhead or of different heads of injection, especially between adjacent printheads.
Además, los medios de desplazamiento 6 del soporte 4 se aplican a un eje vertical perpendicular a los anteriores, permitiéndose asi el ajuste de la altura de la impresión y el acceso a estaciones de mantenimiento, habiéndose referenciado como 7 todas estas trayectorias posibles en el desplazamiento del soporte 4 que determinan un movimiento en dicho soporte 4 similar al de un robot cartesiano de tres ejes.  In addition, the displacement means 6 of the support 4 are applied to a vertical axis perpendicular to the previous ones, thus allowing the adjustment of the printing height and access to maintenance stations, all these possible trajectories in the displacement having been referred to as 7 of the support 4 that determine a movement in said support 4 similar to that of a three-axis Cartesian robot.
Los cabezales de impresión 3 podrán actuar decorando el objeto 1 tanto estando en movimiento la banda de transporte 2 y fija la posición del soporte 4, como estando en movimiento ambos o estando detenida la banda 2 y en movimiento el soporte 4. Además esos movimientos de la banda 2 y del soporte 4 podrán ser simultáneos o secuenciales . Además esos movimientos podrán ser en cada dirección de dos sentidos, es decir de avance y de retroceso .  The printheads 3 may act by decorating the object 1 both when the transport band 2 is in motion and fixes the position of the support 4, as both are in motion or the band 2 is stopped and the support 4 is in motion, in addition to those movements Band 2 and support 4 may be simultaneous or sequential. In addition, these movements may be in each direction in two directions, that is, forward and backward.
Todos esos movimientos de la banda 2 y el soporte 4 están gestionados por un controlador programable que además gestiona la ejecución de la impresión comandando las señales electrónicas que se asocian a los inyectores de cada cabezal de impresión 3. All those movements of the band 2 and the support 4 are managed by a programmable controller that also manages the execution of the print by commanding the electronic signals that are associated with the nozzles of each printhead 3.
Aunque en el presente ejemplo se muestra un único soporte 4, en otras realizaciones se dispone de una pluralidad de soportes 4 cuyo número se define en función del número de tintas que se utilicen en una decoración determinada; encontrándose sincronizados todos los movimientos de todos los soportes 4 y la banda de transporte 2 mediante el referido controlador programable.  Although a single support 4 is shown in the present example, in other embodiments a plurality of supports 4 are available whose number is defined as a function of the number of inks used in a given decoration; being synchronized all the movements of all the supports 4 and the transport band 2 by means of said programmable controller.

Claims

REIVINDICACIONES
1. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, que cuenta con cabezales de impresión (3) , estando dotado cada uno de ellos de diversos inyectores, empleados en impresiones (denominadas "single- pass") donde los cabezales de impresión son inmóviles y el objeto a imprimir (1) se mueve bajo ellos; caracterizado porque cuenta con una banda transportadora (2) con capacidad de movimiento según una dirección X, encontrándose en dicha banda los objetos a imprimir (1); contando además el dispositivo con al menos un soporte (4) de cabezales en el que encuentran montados varios de los referidos cabezales de impresión (3) ; presentando cada soporte (4) medios propios de desplazamiento (6) al menos según una dirección paralela a la referida dirección X y según una o más direcciones distintas de la citada dirección paralela a la dirección X; gobernándose los movimientos de la banda (2) y de cada soporte (4) mediante un controlador programable, de manera que la impresión que se efectúa puede combinar movimientos de los objetos a imprimir (1) y movimientos de los cabezales de impresión (3) en todas esas direcciones.  1. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, which has printheads (3), each of which has several injectors, used in printing (called "single-pass") where the printheads are motionless and the object to be printed (1) moves under them; characterized in that it has a conveyor belt (2) with movement capacity according to an X direction, the objects to be printed (1) being in said band; the device also having at least one head support (4) in which several of said print heads (3) are mounted; each support (4) having its own means of movement (6) having at least one direction parallel to said X direction and according to one or more directions other than said direction parallel to X direction; the movements of the band (2) and each support (4) being governed by a programmable controller, so that the printing that is carried out can combine movements of the objects to be printed (1) and movements of the print heads (3) in all those directions.
2. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, según la reivindicación 1, caracterizado porque los cabezales (3) se distribuyen en el soporte (4) de manera que quedan orientados según direcciones perpendiculares y oblicuas respecto del plano principal de la banda transportadora (2), permitiendo asi la impresión simultánea de todo el ancho del objeto a imprimir ( 1 ) .  2. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, according to claim 1, characterized in that the heads (3) are distributed in the support (4) so that they are oriented in perpendicular and oblique directions with respect to the main plane of the band conveyor (2), thus allowing simultaneous printing of the entire width of the object to be printed (1).
3. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, según la reivindicación 1 ó 2, caracterizado porque los desplazamientos del soporte (4) en esa dirección paralela a la dirección X se dan entre una posición de espera (8) y una posición de fin de carrera (9) establecidas en una porción de la longitud de la banda transportadora (2). 3. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, according to claim 1 or 2, characterized in that the displacements of the support (4) in that direction parallel to the X direction occur between a waiting position (8) and a position end of career (9) established in a portion of the length of the conveyor belt (2).
4. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, según una cualquiera de las reivindicaciones anteriores, caracterizado porque la referida capacidad de movimiento de la banda de transporte según al menos una dirección X, incluye la posibilidad de movimiento de ésta en una dirección Y perpendicular a la referida dirección X que facilita el entrelazado de la impresión de inyectores de un mismo cabezal (3) y el entrelazado de la impresión de inyectores de distintos cabezales (3) .  4. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, according to any one of the preceding claims, characterized in that said movement capacity of the conveyor belt according to at least one X direction includes the possibility of movement of it in one direction And perpendicular to the aforementioned X-direction that facilitates the interlacing of the printing of injectors of the same head (3) and the interlacing of the printing of injectors of different heads (3).
5. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, según una cualquiera de las reivindicaciones anteriores, caracterizado porque la referida una o más direcciones distintas de la dirección paralela a la dirección X, en los desplazamientos del soporte (4), consisten al menos en una dirección transversal respecto de la referida dirección X que facilita el entrelazado de la impresión de inyectores de un mismo cabezal (3) y el entrelazado de la impresión de inyectores de distintos cabezales (3) .  5. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, according to any one of the preceding claims, characterized in that said one or more addresses other than the direction parallel to the X direction, in the displacements of the support (4), consist of less in a transverse direction with respect to the said X direction which facilitates the interlacing of the printing of injectors of the same head (3) and the interlacing of the printing of injectors of different heads (3).
6. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, según la reivindicación 5, caracterizado porque además de esas direcciones paralela y transversal respecto de la dirección X de la banda (2), el soporte (4) cuenta con una dirección de desplazamiento vertical que permite ajusfar la altura de la impresión y el acceso de estaciones de mantenimiento; de manera que dicho soporte (4) puede actuar como un robot cartesiano de tres ejes.  6. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY according to claim 5, characterized in that in addition to those parallel and transverse directions with respect to the X direction of the band (2), the support (4) has a direction of travel vertical that allows you to adjust the print height and access of maintenance stations; so that said support (4) can act as a three-axis Cartesian robot.
7. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, según una cualquiera de las reivindicaciones anteriores, caracterizado porque dicho controlador programable gestiona los movimientos de los elementos desplazables banda (2) y soportes (4) de manera que dichos movimientos se ejecutan simultáneos, secuenciales o con una combinación de ambos, para cualquiera de los dos sentidos (avance/retroceso) de cada dirección de desplazamiento existente en los elementos desplazables banda (2) y soportes (4); posibilitando la impresión tanto en movimiento como en parada de uno, varios o todos los elementos desplazables. 7. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, according to any one of the preceding claims, characterized in that said programmable controller manages the movements of the movable band elements (2) and supports (4) so that said movements are executed simultaneously, sequentially or with a combination of both, for either of the two directions (forward / reverse) of each direction of movement existing in the band movable elements (2) and supports (4); enabling printing both in motion and in stopping one, several or all movable elements.
8. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCIÓN DE TINTA, según una cualquiera de las reivindicaciones anteriores, caracterizado porque el controlador programable que gobierna los movimientos de la banda (2) y los soportes (4) se encarga además de la gestión de la ejecución de la impresión comandando las señales electrónicas de los inyectores de los cabezales de impresión (3) .  8. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, according to any one of the preceding claims, characterized in that the programmable controller that governs the movements of the band (2) and the supports (4) is also responsible for the management of the print execution by commanding the electronic signals of the printhead nozzles (3).
9. - DISPOSITIVO DE IMPRESIÓN MEDIANTE TECNOLOGÍA DE INYECCUÓN DE TINTA, según una cualquiera de las reivindicaciones anteriores, caracterizado porque el número de soportes (4) para cabezales de impresión se dimensiona en función del número de tintas a usar en la impresión correspondiente .  9. - PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY, according to any one of the preceding claims, characterized in that the number of supports (4) for printheads is sized according to the number of inks to be used in the corresponding printing.
PCT/ES2010/070442 2009-09-07 2010-06-30 Printer device using inkjet technology WO2011027012A1 (en)

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ES200930657A ES2354667B1 (en) 2009-09-07 2009-09-07 PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY.

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ES2354667A1 (en) 2011-03-17
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ES2354667B1 (en) 2012-01-25

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