WO2010066923A1 - High-strength, ultra-light interchangeable sleeve for supporting printing or rolling elements subject to high working pressures - Google Patents

High-strength, ultra-light interchangeable sleeve for supporting printing or rolling elements subject to high working pressures Download PDF

Info

Publication number
WO2010066923A1
WO2010066923A1 PCT/ES2009/000569 ES2009000569W WO2010066923A1 WO 2010066923 A1 WO2010066923 A1 WO 2010066923A1 ES 2009000569 W ES2009000569 W ES 2009000569W WO 2010066923 A1 WO2010066923 A1 WO 2010066923A1
Authority
WO
WIPO (PCT)
Prior art keywords
high density
density
ribs
component
low density
Prior art date
Application number
PCT/ES2009/000569
Other languages
Spanish (es)
French (fr)
Inventor
Luis Antonio Ruiz Suesa
Jordi Puig Vila
Original Assignee
Neopack, S.L.
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 Neopack, S.L. filed Critical Neopack, S.L.
Priority to EP09831498.2A priority Critical patent/EP2368719B1/en
Publication of WO2010066923A1 publication Critical patent/WO2010066923A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/04—Blanket structure multi-layer

Definitions

  • the present invention concerns a high-strength, ultra-light interchangeable jacket for supporting printing or lamination elements subjected to high working pressures, usable, for example, in offset printers or laminating bodies.
  • Shirts are known for printing or laminating cylinders made from a central tubular core on which a stratified structure of a polymeric material, such as polyurethane, is disposed.
  • a stratified structure of a polymeric material such as polyurethane
  • the polymer used is of high density.
  • a continuous stratified structure of high density polymer imposes a significantly high weight that forces carry out a manipulation of the jacket by more than one operator or by a controllable manipulator, making its use difficult.
  • Shirts for printing or lamination cylinders are also known in which the laminated structure, to relieve weight, comprises a continuous, optional inner layer of high density polymer in contact with the central tubular core, then a continuous intermediate layer of low density polymer, and finally a continuous outer layer of high density polymer.
  • a problem with this jacket is that, when it is subjected to the usual high working pressures in offset printing and other types of printing or lamination, the intermediate layer of low density polymer has a risk of yielding, and when faced with significant pressure efforts The intermediate layer of low density is crushed and thus the cylindrical condition of the jacket is lost.
  • US-A-6688226 describes an apparatus for manufacturing sleeves for offset printing cylinders.
  • the apparatus shown in Fig. 2 of the publication of this patent, comprises means for supporting and rotating a tubular core around an axis, and an injection nozzle installed in a mobile carriage that is moved along a rail parallel to the axis of the tubular core. Through the nozzle, multiple layers superimposed radially of a solidifiable fluid polymer are deposited on an outer surface of the tubular core while it is rotating.
  • the present invention provides a high-strength, ultra-light interchangeable sleeve for supporting printing or laminating elements subjected to high working pressures.
  • the jacket is of the type comprising a central tubular core adapted to be coupled on an axis and a stratified structure arranged on an outer surface of said tubular core.
  • Said stratified structure comprises a plurality of layers of one or more components with different densities, superimposed in a radial direction, with a continuous outer layer of high density.
  • the jacket of the present invention is characterized in that said stratified structure comprises a plurality of layers of a high density component superimposed radially and axially separated forming high density ribs, which can be helical or discoidal, a component of low density filling a gap between said high density ribs forming a low density filling, and a plurality of. layers of a high density component superimposed radially forming said continuous outer layer of high density, which is supported on said high density ribs and said low density filling.
  • the jacket of the present invention further comprises a plurality of layers of a high density component superimposed radially forming a continuous inner layer of high density in contact with said outer surface of the tubular core, and on which the ribs are arranged High density and low density padding. It is also preferable that the jacket has high density discoidal enclosure walls formed by multiple layers at the ends of the jacket, and connected with the inner and outer layers of high density.
  • a suitable component for the stratified structure of the shirts of the present invention is a polymer, such as, for example, polyurethane, which can have different densities.
  • a polyurethane suitable for making the inner layer continuous, the continuous outer layer and the high density ribs have, for example, a density between 1.0 g / cm 3 and 1.6 g / cm 3 .
  • the density of the polyurethane for the low density filling can be significantly low, since in some cases the main function of the filling is simply to support the layers of the continuous high density outer layer during the deposition thereof.
  • the high density ribs can be of helical or discoidal configuration. If the helical configuration is used, the stratified structure may comprise a single high density rib of helical configuration, two or more high density rib formations of helical configuration, parallel or not, with the same direction of rotation, or two or more High density rib formations of cross-linked helical configuration, with opposite directions of rotation. When two or more high density rib formations of helical configuration are used, either with the same direction of rotation or with opposite directions of rotation, they can all have the same propeller pitch or different propeller passages. Also, optionally each of the helical rib formations can have a variable pitch.
  • the high density ribs will be relatively thin compared to the spaces filled with the low density filling between them, so that the weight of the shirt can be very light compared to the prior art shirts while
  • the ribs and walls of high density enclosure support the continuous outer layer of high density substantially preventing the crushing of the low density filling and ensuring the cylindrical condition of the jacket even under high working pressures.
  • the discoidal enclosure walls prevent contact of the low density filling with the atmospheric agents at the ends of the jacket and prevent the expansion thereof.
  • the present invention provides a method of manufacturing a high-strength ultralight interchangeable sleeve for supporting printing or laminating elements subjected to high working pressures.
  • the method is of the type comprising depositing multiple superimposed layers in a radial direction of a solidifiable fluid component of different densities on an outer surface of a tubular core, while it is rotating, by means of one or more injection nozzles installed in a mobile carriage that is displaced in a rail parallel to the axis of said tubular core.
  • the method of the present invention is characterized in that it comprises depositing layers of a high density component superimposed in a radial direction and separated in an axial direction to form helical ribs or high density discoidal, depositing a low density component in separation spaces between said high density ribs to form a low density filling therein, and depositing layers of a high density component to form a continuous outer layer of high density supported on said high density ribs and on said low density filling.
  • the method further comprises depositing layers of a high density component to form a continuous inner layer of high density on said outer surface of the tubular core before depositing the high density ribs and the low density filling, so that the High density ribs and low density padding are deposited on this continuous high density inner layer.
  • the method also contemplates forming enclosure walls composed of multiple layers of a high density component at the ends of the jacket to avoid exposing the low density filler to atmospheric agents at the ends of the jacket.
  • the method of the present invention can be carried out using any one of several devices well known in the state of the art of the type described in said US-A-6688226.
  • FIGS. 1A and 1B are cross-sectional views of an ultralight interchangeable jacket according to a first embodiment of Ia present invention, taken by a transverse plane perpendicular to the axis of the sleeve and by a longitudinal plane comprising the axis of the sleeve, respectively;
  • Fig. 2 is a cross-sectional view of an ultralight interchangeable jacket according to a second embodiment of the present invention, taken along a longitudinal plane comprising the axis of the shirt;
  • Fig. 3 is a cross-sectional view of an ultralight interchangeable jacket in accordance with a third embodiment of the present invention, taken along a longitudinal plane comprising the axis of the jacket; Y
  • Fig. 4 is a cross-sectional view of an ultralight interchangeable jacket in accordance with a fourth embodiment of the present invention, taken along a longitudinal plane comprising the axis of the jacket.
  • the ultra-light, high-strength interchangeable sleeve for supporting printing or laminating elements subjected to high working pressures comprises, according to any one of the examples of embodiment shown, a tubular core 1 central adapted to be coupled on a rotating shaft or support (not shown), and a stratified structure 2 disposed on an outer surface of said tubular core 1.
  • Said stratified structure 2 comprises a continuous inner layer of high density 3a in contact with said outer surface of the tubular core 1, helical or discoidal high density ribs 3b disposed on said continuous high density inner layer 3a, a low density filling 4 also disposed on the continuous high density inner layer 3a filling a gap between said high density ribs 3b, an outer layer conti high density nua 3c supported on said high density ribs 3b and on said low density filler 4, and high density density 3D enclosure walls closing the stratified structure 2 at the ends of the jacket.
  • the aforementioned walls of high density enclosure 3d are connected to a continuous inner layer of high density 3a and to the continuous outer layer of high density 3c.
  • the continuous high density inner layer 3a, the high density ribs 3b and the high density enclosure walls 3d are made from a plurality of overlapping layers of a high density component, such as a polyurethane with a density between 1.0 g / cm 3 and 1.6 g / cm 3 , deposited on an outer surface of the tubular core 1.
  • a high density component such as a polyurethane with a density between 1.0 g / cm 3 and 1.6 g / cm 3
  • This high density component is deposited when it is in a solidifiable fluid state by one or more injection nozzles (not shown) installed in a mobile carriage that is moved in a rail parallel to the axis of said tubular core 1 while tubular core 1 is rotating.
  • injection nozzles not shown
  • the strata are superimposed radially and axially spaced apart.
  • the helical or discoidal configuration of the high density ribs 3b is obtained by selecting different combinations of speeds and directions of rotation of the tubular core 1
  • the low density filling 4 is generally made from a plurality of layers of a low density component, such as a low density polyurethane, deposited when the component is in a solidifiable fluid state in a manner analogous to that described higher.
  • the low density component for the filling 4 can be deposited at the same time as the high density component for the continuous inner layer, the ribs and the high density enclosure walls 3a, 3b, 3d using independent nozzles.
  • the continuous high density outer layer 3c is made from a plurality of superimposed layers of a high density component, such as a polyurethane with a density between 1.0 g / cm 3 and 1.6 g / cm 3 , deposited on outer surfaces of the high density ribs 3b, high density enclosure walls 3d and low density filling 4 using the component in a solidifiable fluid state by a technique analogous to that described above.
  • a high density component such as a polyurethane with a density between 1.0 g / cm 3 and 1.6 g / cm 3
  • the high-density component that forms a continuous inner layer, the ribs and the high enclosure walls can be deposited first. density 3a, 3b, 3d, then this high density component can be cured, then the low density component that forms the filling 4 can be deposited directly inside each cell and the high density component that forms the continuous outer layer High density 3c can be deposited on the ribs and walls of high density enclosure 3b, 3d and the low density filling 4, and finally the curing of the high and low density components not previously cured can proceed.
  • density 3a, 3b, 3d density
  • this high density component can be cured
  • the low density component that forms the filling 4 can be deposited directly inside each cell and the high density component that forms the continuous outer layer
  • High density 3c can be deposited on the ribs and walls of high density enclosure 3b, 3d and the low density filling 4, and finally the curing of the high and low density components not previously cured can proceed.
  • the stratified structure 2 includes a single high density rib 3b of helical configuration with a predetermined direction of rotation.
  • This single high density rib 3b is connected to the continuous inner and outer layers of high density 3a, 3c and to the high density enclosure walls 3d. Therefore, the low density filling 4 has the form of a helical block with the same direction of rotation.
  • the high density rib 3b and the low density padding 4 have been illustrated with a constant propeller pitch, although they could alternatively have a variable helix pitch along the length of the sleeve.
  • a second example of embodiment of the ultralight interchangeable jacket of the present invention is shown, where the stratified structure 2 includes two high density rib formations 3b of helical configuration with the same direction of rotation. Both high density ribs 3b are connected to the continuous inner and outer layers of high density 3a, 3c and the high density enclosure walls 3d, and thus the low density filling 4 has the form of two helical blocks with the same direction rotation. It will be understood that this second embodiment can be generalized for any other number of high density ribs 3b greater than two.
  • Fig. 2 a second example of embodiment of the ultralight interchangeable jacket of the present invention is shown, where the stratified structure 2 includes two high density rib formations 3b of helical configuration with the same direction of rotation. Both high density ribs 3b are connected to the continuous inner and outer layers of high density 3a, 3c and the high density enclosure walls 3d, and thus the low density filling 4 has the form of two helical blocks with the same direction rotation. It will be understood that this second embodiment can be
  • the stratified structure 2 includes two high density rib formations 3b of helical configuration with opposite directions of rotation, so that ribs of High density 3b are crosslinked forming a grid that defines multiple approximately rhombic configuration cells.
  • both high density ribs 3b are connected to the continuous inner and outer layers of high density 3a, 3c and the high density enclosure walls 3d, and the low density padding 4 is configured as a plurality of curved blocks of shape approximately rhombic It will be understood that this second embodiment can be generalized for any other number of high density ribs 3b greater than two.
  • Fig. 4 a fourth example of embodiment of the ultralight interchangeable jacket of the present invention is shown, where the stratified structure 2 includes a plurality of high density ribs 3b of discoidal configuration, parallel to the walls of high density enclosure 3d located at the ends of the shirt. Said plurality of high density ribs 3b are connected to the continuous inner and outer layers of high density 3a, 3c, and the low density padding 4 is configured as a plurality of annular shaped blocks.

Abstract

The sleeve comprises a central tubular core (1), designed to be coupled onto a shaft, and a stratified structure (2) arranged on an outer surface of said tubular core (1). The stratified structure (2) comprises a plurality of strata of a high-density component that are overlaid radially and separated axially, forming helicoidal or discoidal high-density ribs (3b), a low-density component filling in spaces separating the aforesaid high-density ribs (3b), forming a low-density fill (4), and a plurality of strata of a high-density component overlaid radially, forming a continuous high-density outer layer (3c) supported on said high-density ribs (3b) and on said low-density fill (4).

Description

CAMISA INTERCAMBIABLE ULTRALIGERA DE ALTA RESISTENCIA PARA SOPORTE DE ELEMENTOS DE IMPRESIÓN O LAMINACIÓN SOMETIDOS A ALTAS HIGH RESISTANCE ULTRALIGERA INTERCHANGEABLE SHIRT FOR SUPPORT OF PRINT OR LAMINATION ELEMENTS SUBJECTED TO HIGH
PRESIONES DE TRABAJOWORK PRESSURES
Campo de Ia técnicaField of the technique
La presente invención concierne a una camisa intercambiable ultraligera de alta resistencia para soporte de elementos de impresión o laminación sometidos a altas presiones de trabajo, utilizable, por ejemplo, en impresoras offset o cuerpos de laminación.The present invention concerns a high-strength, ultra-light interchangeable jacket for supporting printing or lamination elements subjected to high working pressures, usable, for example, in offset printers or laminating bodies.
Antecedentes de Ia invenciónBackground of the invention
Se conocen camisas para cilindros de impresión o laminación hechas a partir de un núcleo tubular central sobre el cual está dispuesta una estructura estratificada de un material polimérico, tal como el poliuretano. Para que las camisas sean operativas, es decir, para que resistan altas cargas de presión sobre su superficie exterior, el polímero utilizado es de alta densidad. Sin embargo, cuando el espesor de una camisa es considerable, por ejemplo debido a que ha de abarcar un diámetro exterior grande en relación con el diámetro del núcleo tubular, una estructura estratificada continua de polímero de elevada densidad impone un peso significativamente elevado que obliga a efectuar una manipulación de Ia camisa por más de un operario o por un manipulador controlable, dificultando su utilización.Shirts are known for printing or laminating cylinders made from a central tubular core on which a stratified structure of a polymeric material, such as polyurethane, is disposed. For the shirts to be operative, that is, for them to withstand high pressure loads on their outer surface, the polymer used is of high density. However, when the thickness of a jacket is considerable, for example because it has to cover a large outer diameter in relation to the diameter of the tubular core, a continuous stratified structure of high density polymer imposes a significantly high weight that forces carry out a manipulation of the jacket by more than one operator or by a controllable manipulator, making its use difficult.
También se conocen camisas para cilindros de impresión o laminación en las que Ia estructura estratificada, para aliviar el peso, comprende una capa interior continua, opcional, de polímero de alta densidad en contacto con el núcleo tubular central, a continuación una capa intermedia continua de polímero de baja densidad, y finalmente una capa exterior continua de polímero de alta densidad. Un problema de esta camisa es que, cuando es sometida a las altas presiones de trabajo habituales en Ia impresión offset y en otros tipos de impresión o laminación, Ia capa intermedia de polímero de baja densidad tiene riesgo de ceder, y ante esfuerzos de presión importantes Ia capa intermedia de baja densidad se aplasta y con ello se pierde Ia condición cilindrica de Ia camisa. Además Ia capa intermedia de baja densidad está expuesta en los extremos de Ia camisa, y tiende a dilatarse por dichos extremos debido al contacto con los agentes atmosféricos, Io que puede acabar afectando a Ia regularidad superficial cilindrica y Ia estabilidad dimensional del diámetro exterior de Ia camisa. La patente US-A-6688226 describe un aparato para fabricar camisas para cilindros de impresión offset. El aparato, mostrado en la Fig. 2 de Ia publicación de esta patente, comprende unos medios para soportar y hacer girar un núcleo tubular alrededor de un eje, y una boquilla inyectora instalada en un carro móvil que es desplazado a Io largo de un carril paralelo al eje del núcleo tubular. Mediante Ia boquilla se depositan múltiples estratos superpuestos en sentido radial de un polímero fluido solidificable sobre una superficie exterior del núcleo tubular mientras éste está girando.Shirts for printing or lamination cylinders are also known in which the laminated structure, to relieve weight, comprises a continuous, optional inner layer of high density polymer in contact with the central tubular core, then a continuous intermediate layer of low density polymer, and finally a continuous outer layer of high density polymer. A problem with this jacket is that, when it is subjected to the usual high working pressures in offset printing and other types of printing or lamination, the intermediate layer of low density polymer has a risk of yielding, and when faced with significant pressure efforts The intermediate layer of low density is crushed and thus the cylindrical condition of the jacket is lost. In addition, the intermediate layer of low density is exposed at the ends of the jacket, and tends to expand at said ends due to contact with atmospheric agents, which may end up affecting the cylindrical surface regularity and the dimensional stability of the outer diameter of the shirt. US-A-6688226 describes an apparatus for manufacturing sleeves for offset printing cylinders. The apparatus, shown in Fig. 2 of the publication of this patent, comprises means for supporting and rotating a tubular core around an axis, and an injection nozzle installed in a mobile carriage that is moved along a rail parallel to the axis of the tubular core. Through the nozzle, multiple layers superimposed radially of a solidifiable fluid polymer are deposited on an outer surface of the tubular core while it is rotating.
Exposición de Ia invención De acuerdo con un primer aspecto, Ia presente invención aporta una camisa intercambiable ultraligera de alta resistencia para soporte de elementos de impresión o laminación sometidos a altas presiones de trabajo. La camisa es del tipo que comprende un núcleo tubular central adaptado para ser acoplado sobre un eje y una estructura estratificada dispuesta sobre una superficie exterior de dicho núcleo tubular. La mencionada estructura estratificada comprende una pluralidad de estratos de uno o más componentes con diferentes densidades, superpuestos en sentido radial, con una capa exterior continua de alta densidad. La camisa de Ia presente invención está caracterizada porque dicha estructura estratificada comprende una pluralidad de estratos de un componente de alta densidad superpuestos en sentido radial y separados en sentido axial formando unas costillas de alta densidad, las cuales pueden ser helicoidales o discoidales, un componente de baja densidad llenando unos espacios de separación entre las citadas costillas de alta densidad formando un relleno de baja densidad, y una pluralidad de. estratos de un componente de alta densidad superpuestos en sentido radial formando Ia mencionada capa exterior continua de alta densidad, Ia cual está soportada en dichas costillas de alta densidad y en dicho relleno de baja densidad.DISCLOSURE OF THE INVENTION In accordance with a first aspect, the present invention provides a high-strength, ultra-light interchangeable sleeve for supporting printing or laminating elements subjected to high working pressures. The jacket is of the type comprising a central tubular core adapted to be coupled on an axis and a stratified structure arranged on an outer surface of said tubular core. Said stratified structure comprises a plurality of layers of one or more components with different densities, superimposed in a radial direction, with a continuous outer layer of high density. The jacket of the present invention is characterized in that said stratified structure comprises a plurality of layers of a high density component superimposed radially and axially separated forming high density ribs, which can be helical or discoidal, a component of low density filling a gap between said high density ribs forming a low density filling, and a plurality of. layers of a high density component superimposed radially forming said continuous outer layer of high density, which is supported on said high density ribs and said low density filling.
Preferiblemente, Ia camisa de Ia presente invención comprende además una pluralidad de estratos de un componente de alta densidad superpuestos en sentido radial formando una capa interior continua de alta densidad en contacto con dicha superficie exterior del núcleo tubular, y sobre Ia cual están dispuestas las costillas de alta densidad y el relleno de baja densidad. También es preferible que Ia camisa tenga unas paredes de cerramiento discoidales de alta densidad formadas por múltiples estratos en los extremos de Ia camisa, y conectadas con las capas interior y exterior de alta densidad. Un componente adecuado para Ia estructura estratificada de las camisas de Ia presente invención es un polímero, tal como, por ejemplo, el poliuretano, el cual puede tener diferentes densidades. Un poliuretano adecuado para hacer Ia capa interior continua, la capa exterior continua y las costillas de alta densidad tiene, por ejemplo, una densidad comprendida entre 1 ,0 g/cm3 y 1 ,6 g/cm3. La densidad del poliuretano para el relleno de baja densidad puede ser significativamente baja, puesto que en algunos casos Ia principal función del relleno es simplemente soportar los estratos de la capa exterior continua de alta densidad durante Ia deposición de los mismos.Preferably, the jacket of the present invention further comprises a plurality of layers of a high density component superimposed radially forming a continuous inner layer of high density in contact with said outer surface of the tubular core, and on which the ribs are arranged High density and low density padding. It is also preferable that the jacket has high density discoidal enclosure walls formed by multiple layers at the ends of the jacket, and connected with the inner and outer layers of high density. A suitable component for the stratified structure of the shirts of the present invention is a polymer, such as, for example, polyurethane, which can have different densities. A polyurethane suitable for making the inner layer continuous, the continuous outer layer and the high density ribs have, for example, a density between 1.0 g / cm 3 and 1.6 g / cm 3 . The density of the polyurethane for the low density filling can be significantly low, since in some cases the main function of the filling is simply to support the layers of the continuous high density outer layer during the deposition thereof.
Tal como se ha mencionado más arriba, las costillas de alta densidad pueden ser de configuración helicoidal o discoidal. Si se usa Ia configuración helicoidal, Ia estructura estratificada puede comprender una única costilla de alta densidad de configuración helicoidal, dos o más formaciones de costillas de alta densidad de configuración helicoidal, paralelas o no, con una misma dirección de giro, o dos o más formaciones de costillas de alta densidad de configuración helicoidal entrecruzadas, con direcciones de giro opuestas. Cuando se usan dos o más formaciones de costillas de alta densidad de configuración helicoidal, ya sean con Ia misma dirección de giro o con direcciones de giro opuestas, pueden tener todas un mismo paso de hélice o diferentes pasos de hélice. Asimismo, opcionalmente cada una de las formaciones de costillas helicoidales puede tener un paso variable.As mentioned above, the high density ribs can be of helical or discoidal configuration. If the helical configuration is used, the stratified structure may comprise a single high density rib of helical configuration, two or more high density rib formations of helical configuration, parallel or not, with the same direction of rotation, or two or more High density rib formations of cross-linked helical configuration, with opposite directions of rotation. When two or more high density rib formations of helical configuration are used, either with the same direction of rotation or with opposite directions of rotation, they can all have the same propeller pitch or different propeller passages. Also, optionally each of the helical rib formations can have a variable pitch.
En cualquier caso, las costillas de alta densidad serán relativamente delgadas en comparación con los espacios llenos del relleno de baja densidad entre las mismas, de manera que el peso de Ia camisa puede ser muy ligero en comparación con las camisas de Ia técnica anterior mientras que las costillas y paredes de cerramiento de alta densidad soportan Ia capa exterior continua de alta densidad impidiendo substancialmente el aplastamiento del relleno de baja densidad y asegurando Ia condición cilindrica de Ia camisa incluso bajo altas presiones de trabajo. Además, las paredes discoidales de cerramiento impiden el contacto del relleno de baja densidad con los agentes atmosféricos en los extremos de Ia camisa y evitan Ia dilatación del mismo.In any case, the high density ribs will be relatively thin compared to the spaces filled with the low density filling between them, so that the weight of the shirt can be very light compared to the prior art shirts while The ribs and walls of high density enclosure support the continuous outer layer of high density substantially preventing the crushing of the low density filling and ensuring the cylindrical condition of the jacket even under high working pressures. In addition, the discoidal enclosure walls prevent contact of the low density filling with the atmospheric agents at the ends of the jacket and prevent the expansion thereof.
De acuerdo con un segundo aspecto, Ia presente invención aporta un método de fabricación de una camisa intercambiable ultraligera de alta resistencia para soporte de elementos de impresión o laminación sometidos a altas presiones de trabajo. El método es del tipo que comprende depositar múltiples capas superpuestas en sentido radial de un componente fluido solidificable de diferentes densidades sobre una superficie exterior de un núcleo tubular, mientras éste está girando, mediante una o más boquillas inyectoras instaladas en un carro móvil que es desplazado en un carril paralelo al eje de dicho núcleo tubular. El método de Ia presente invención está caracterizado porque comprende depositar unas capas de un componente de alta densidad superpuestas en un sentido radial y separadas en un sentido axial para formar unas costillas helicoidales o discoidales de alta densidad, depositar un componente de baja densidad en unos espacios de separación entre las citadas costillas de alta densidad para formar en ellos un relleno de baja densidad, y depositar unos estratos de un componente de alta densidad para formar una capa exterior continua de alta densidad soportada en dichas costillas de alta densidad y en dicho relleno de baja densidad.In accordance with a second aspect, the present invention provides a method of manufacturing a high-strength ultralight interchangeable sleeve for supporting printing or laminating elements subjected to high working pressures. The method is of the type comprising depositing multiple superimposed layers in a radial direction of a solidifiable fluid component of different densities on an outer surface of a tubular core, while it is rotating, by means of one or more injection nozzles installed in a mobile carriage that is displaced in a rail parallel to the axis of said tubular core. The method of the present invention is characterized in that it comprises depositing layers of a high density component superimposed in a radial direction and separated in an axial direction to form helical ribs or high density discoidal, depositing a low density component in separation spaces between said high density ribs to form a low density filling therein, and depositing layers of a high density component to form a continuous outer layer of high density supported on said high density ribs and on said low density filling.
Preferiblemente, el método comprende además depositar unos estratos de un componente de alta densidad para formar una capa interior continua de alta densidad sobre dicha superficie exterior del núcleo tubular antes de depositar las costillas de alta densidad y el relleno de baja densidad, de manera que las costillas de alta densidad y el relleno de baja densidad son depositados sobre esta capa interior continua de alta densidad. El método también contempla formar unas paredes de cerramiento compuestas de múltiples estratos de un componente de alta densidad en los extremos de Ia camisa para evitar Ia exposición del relleno de baja densidad a los agentes atmosféricos en los extremos de Ia camisa. El método de Ia presente invención puede ser llevado a Ia práctica usando uno cualquiera de los varios aparatos bien conocidos en el estado de Ia técnica del tipo descrito en Ia citada patente US-A-6688226. Seleccionando diferentes combinaciones de velocidades y direcciones de giro del núcleo tubular y velocidades y direcciones de desplazamiento de Ia boquilla inyectora se pueden obtener diferentes patrones de deposición del polímero. Usando simultáneamente una o más boquillas para el componente de alta densidad y una o más boquillas para el componente de baja densidad es posible depositar las costillas de alta densidad y el relleno de baja densidad en una misma operación cuando hay costillas discoidales, o una sola costilla helicoidal, o varias costillas helicoidales paralelas con un mismo sentido de giro. Cuando hay costillas helicoidales con sentidos de giro opuestos, entrecruzadas formando una retícula, las costillas deben ser formadas en primer lugar por deposición del componente de alta densidad y curadas, y luego los espacios entre las costillas pueden ser rellenados mediante el componente de baja densidad.Preferably, the method further comprises depositing layers of a high density component to form a continuous inner layer of high density on said outer surface of the tubular core before depositing the high density ribs and the low density filling, so that the High density ribs and low density padding are deposited on this continuous high density inner layer. The method also contemplates forming enclosure walls composed of multiple layers of a high density component at the ends of the jacket to avoid exposing the low density filler to atmospheric agents at the ends of the jacket. The method of the present invention can be carried out using any one of several devices well known in the state of the art of the type described in said US-A-6688226. By selecting different combinations of speeds and directions of rotation of the tubular core and speeds and directions of travel of the injection nozzle, different polymer deposition patterns can be obtained. Using simultaneously one or more nozzles for the high density component and one or more nozzles for the low density component it is possible to deposit the high density ribs and the low density filling in the same operation when there are discoidal ribs, or a single rib helical, or several parallel helical ribs with the same direction of rotation. When there are helical ribs with opposite directions of rotation, cross-linked to form a grid, the ribs must first be formed by deposition of the high density component and cured, and then the spaces between the ribs can be filled by the low density component.
Breve descripción de los dibujosBrief description of the drawings
Las anteriores y otras características y ventajas se comprenderán más plenamente a partir de Ia siguiente descripción detallada de unos ejemplos de realización con referencia a los dibujos adjuntos, en los que: las Figs. 1A y 1B son vistas en sección transversal de una camisa intercambiable ultraligera de acuerdo con un primer ejemplo de realización de Ia presente invención, tomadas por un plano transversal perpendicular al eje de Ia camisa y por un plano longitudinal que comprende el eje de Ia camisa, respectivamente;The foregoing and other features and advantages will be more fully understood from the following detailed description of some embodiment examples with reference to the attached drawings, in which: Figs. 1A and 1B are cross-sectional views of an ultralight interchangeable jacket according to a first embodiment of Ia present invention, taken by a transverse plane perpendicular to the axis of the sleeve and by a longitudinal plane comprising the axis of the sleeve, respectively;
Ia Fig. 2 es una vista en sección transversal de una camisa intercambiable ultraligera de acuerdo con un segundo ejemplo de realización de Ia presente invención, tomada por un plano longitudinal que comprende el eje de Ia camisa;Fig. 2 is a cross-sectional view of an ultralight interchangeable jacket according to a second embodiment of the present invention, taken along a longitudinal plane comprising the axis of the shirt;
Ia Fig. 3 es una vista en sección transversal de una camisa intercambiable ultraligera de acuerdo con un tercer ejemplo de realización de Ia presente invención, tomada por un plano longitudinal que comprende el eje de Ia camisa; yFig. 3 is a cross-sectional view of an ultralight interchangeable jacket in accordance with a third embodiment of the present invention, taken along a longitudinal plane comprising the axis of the jacket; Y
Ia Fig. 4 es una vista en sección transversal de una camisa intercambiable ultraligera de acuerdo con un cuarto ejemplo de realización de Ia presente invención, tomada por un plano longitudinal que comprende el eje de Ia camisa.Fig. 4 is a cross-sectional view of an ultralight interchangeable jacket in accordance with a fourth embodiment of the present invention, taken along a longitudinal plane comprising the axis of the jacket.
Descripción detallada de unos ejemplos de realizaciónDetailed description of some embodiments
Haciendo en primer lugar referencia a las figuras en general, Ia camisa intercambiable ultraligera de alta resistencia para soporte de elementos de impresión o laminación sometidos a altas presiones de trabajo comprende, de acuerdo con uno cualquiera de los ejemplos de realización mostrados, un núcleo tubular 1 central adaptado para ser acoplado sobre un eje o soporte giratorio (no mostrado), y una estructura estratificada 2 dispuesta sobre una superficie exterior de dicho núcleo tubular 1. La mencionada estructura estratificada 2 comprende una capa interior continua de alta densidad 3a en contacto con dicha superficie exterior del núcleo tubular 1 , unas costillas de alta densidad 3b helicoidales o discoidales dispuestas sobre dicha capa interior continua de alta densidad 3a, un relleno de baja densidad 4 dispuesto asimismo sobre Ia capa interior continua de alta densidad 3a llenando unos espacios de separación entre dichas costillas de alta densidad 3b, una capa exterior continua de alta densidad 3c soportada en dichas costillas de alta densidad 3b y en dicho relleno de baja densidad 4, y unas paredes discoidales de cerramiento de alta densidad 3d cerrando Ia estructura estratificada 2 en los extremos de Ia camisa. Las mencionadas paredes de cerramiento de alta densidad 3d están conectadas a capa interior continua de alta densidad 3a y a Ia capa exterior continua de alta densidad 3c.Referring firstly to the figures in general, the ultra-light, high-strength interchangeable sleeve for supporting printing or laminating elements subjected to high working pressures comprises, according to any one of the examples of embodiment shown, a tubular core 1 central adapted to be coupled on a rotating shaft or support (not shown), and a stratified structure 2 disposed on an outer surface of said tubular core 1. Said stratified structure 2 comprises a continuous inner layer of high density 3a in contact with said outer surface of the tubular core 1, helical or discoidal high density ribs 3b disposed on said continuous high density inner layer 3a, a low density filling 4 also disposed on the continuous high density inner layer 3a filling a gap between said high density ribs 3b, an outer layer conti high density nua 3c supported on said high density ribs 3b and on said low density filler 4, and high density density 3D enclosure walls closing the stratified structure 2 at the ends of the jacket. The aforementioned walls of high density enclosure 3d are connected to a continuous inner layer of high density 3a and to the continuous outer layer of high density 3c.
La capa interior continua de alta densidad 3a, las costillas de alta densidad 3b y las paredes de cerramiento de alta densidad 3d están hechas a partir de una pluralidad de estratos superpuestos de un componente de alta densidad, tal como un poliuretano con una densidad comprendida entre 1 ,0 g/cm3 y 1 ,6 g/cm3, depositados sobre una superficie exterior del núcleo tubular 1. Este componente de alta densidad es depositado cuando está en un estado de fluido solidificable mediante una o más boquillas inyectoras (no mostradas) instaladas en un carro móvil que es desplazado en un carril paralelo al eje de dicho núcleo tubular 1 mientras núcleo tubular 1 está girando. En las costillas de alta densidad 3b y en las paredes de cerramiento de alta densidad 3d, los estratos están superpuestos en sentido radial y separados en sentido axial. La configuración helicoidal o discoidal de las costillas de alta densidad 3b se obtiene seleccionando diferentes combinaciones de velocidades y direcciones de giro del núcleo tubular 1 y velocidades y direcciones de desplazamiento de Ia boquilla o boquillas inyectoras a Io largo del núcleo tubular 1.The continuous high density inner layer 3a, the high density ribs 3b and the high density enclosure walls 3d are made from a plurality of overlapping layers of a high density component, such as a polyurethane with a density between 1.0 g / cm 3 and 1.6 g / cm 3 , deposited on an outer surface of the tubular core 1. This high density component is deposited when it is in a solidifiable fluid state by one or more injection nozzles (not shown) installed in a mobile carriage that is moved in a rail parallel to the axis of said tubular core 1 while tubular core 1 is rotating. In the high density ribs 3b and in the high density enclosure walls 3d, the strata are superimposed radially and axially spaced apart. The helical or discoidal configuration of the high density ribs 3b is obtained by selecting different combinations of speeds and directions of rotation of the tubular core 1 and speeds and directions of travel of the nozzle or injectors nozzles along the length of the tubular core 1.
El relleno de baja densidad 4 está hecho en general a partir de una pluralidad de estratos de un componente de baja densidad, tal como un poliuretano de baja densidad, depositados cuando el componente está en un estado de fluido solidificable de una manera análoga a Ia descrita más arriba. El componente de baja densidad para el relleno 4 puede ser depositada al mismo tiempo que el componente de alta densidad para Ia capa interior continua, las costillas y las paredes de cerramiento de alta densidad 3a, 3b, 3d usando boquillas independientes. La capa exterior continua de alta densidad 3c está hecha a partir de una pluralidad de estratos superpuestos de un componente de alta densidad, tal como un poliuretano con una densidad comprendida entre 1,0 g/cm3 y 1 ,6 g/cm3, depositados sobre unas superficies exteriores de las costillas de alta densidad 3b, paredes de cerramiento de alta densidad 3d y relleno de baja densidad 4 usando el componente en un estado de fluido solidificable mediante una técnica análoga a Ia descrita más arriba. Cuando Ia deposición de ambos componentes de alta y baja densidad ha terminado, estos son sometidos a un proceso de curación y, finalmente, Ia superficie exterior de Ia capa exterior continua de alta densidad 3c puede ser rectificada mediante un proceso de mecanizado. Alternativamente, en algunos casos, por ejemplo cuando se usa una configuración de costillas de alta densidad entrecruzadas formando una retícula con múltiples celdas, se puede depositar primero el componente de alta densidad que forma capa interior continua, las costillas y las paredes de cerramiento de alta densidad 3a, 3b, 3d, a continuación se puede curar este componente de alta densidad, entonces el componente de baja densidad que forma el relleno 4 puede ser depositado directamente al interior de cada celda y el componente de alta densidad que forma Ia capa exterior continua de alta densidad 3c puede ser depositado sobre las costillas y paredes de cerramiento de alta densidad 3b, 3d y el relleno de baja densidad 4, y finalmente se puede proceder el curado de los componentes de alta y baja densidad no curados previamente. En las Figs. 1A y 1B se muestra un primer ejemplo de realización de Ia camisa intercambiable ultraligera de Ia presente invención, donde Ia estructura estratificada 2 incluye una única costilla de alta densidad 3b de configuración helicoidal con un sentido de giro predeterminado. Esta única costilla de alta densidad 3b está conectada a las capas interior y exterior continuas de alta densidad 3a, 3c y a las paredes de cerramiento de alta densidad 3d. Por consiguiente, el relleno de baja densidad 4 tiene Ia forma de un bloque helicoidal con el mismo sentido de giro. La costilla de alta densidad 3b y el relleno de baja densidad 4 se han ilustrado con un paso de hélice constante, aunque alternativamente podrían tener un paso de hélice variable a Io largo de Ia longitud de Ia camisa.The low density filling 4 is generally made from a plurality of layers of a low density component, such as a low density polyurethane, deposited when the component is in a solidifiable fluid state in a manner analogous to that described higher. The low density component for the filling 4 can be deposited at the same time as the high density component for the continuous inner layer, the ribs and the high density enclosure walls 3a, 3b, 3d using independent nozzles. The continuous high density outer layer 3c is made from a plurality of superimposed layers of a high density component, such as a polyurethane with a density between 1.0 g / cm 3 and 1.6 g / cm 3 , deposited on outer surfaces of the high density ribs 3b, high density enclosure walls 3d and low density filling 4 using the component in a solidifiable fluid state by a technique analogous to that described above. When the deposition of both high and low density components is finished, they are subjected to a healing process and, finally, the outer surface of the continuous high density outer layer 3c can be ground by a machining process. Alternatively, in some cases, for example when using a configuration of cross-linked high-density ribs forming a grid with multiple cells, the high-density component that forms a continuous inner layer, the ribs and the high enclosure walls can be deposited first. density 3a, 3b, 3d, then this high density component can be cured, then the low density component that forms the filling 4 can be deposited directly inside each cell and the high density component that forms the continuous outer layer High density 3c can be deposited on the ribs and walls of high density enclosure 3b, 3d and the low density filling 4, and finally the curing of the high and low density components not previously cured can proceed. In Figs. 1A and 1B shows a first embodiment of the ultralight interchangeable jacket of the present invention, where the stratified structure 2 includes a single high density rib 3b of helical configuration with a predetermined direction of rotation. This single high density rib 3b is connected to the continuous inner and outer layers of high density 3a, 3c and to the high density enclosure walls 3d. Therefore, the low density filling 4 has the form of a helical block with the same direction of rotation. The high density rib 3b and the low density padding 4 have been illustrated with a constant propeller pitch, although they could alternatively have a variable helix pitch along the length of the sleeve.
En Ia Fig. 2 se muestra un segundo ejemplo de realización de Ia camisa intercambiable ultraligera de Ia presente invención, donde Ia estructura estratificada 2 incluye dos formaciones de costillas de alta densidad 3b de configuración helicoidal con un mismo sentido de giro. Ambas costillas de alta densidad 3b están conectadas a las capas interior y exterior continuas de alta densidad 3a, 3c y a las paredes de cerramiento de alta densidad 3d, y así el relleno de baja densidad 4 tiene Ia forma de dos bloques helicoidales con el mismo sentido de giro. Se comprenderá que este segundo ejemplo de realización puede generalizarse para cualquier otro número de costillas de alta densidad 3b mayor que dos. En Ia Fig. 3 se muestra un tercer ejemplo de realización de Ia camisa intercambiable ultraligera de Ia presente invención, donde Ia estructura estratificada 2 incluye dos formaciones de costillas de alta densidad 3b de configuración helicoidal con sentidos de giro opuestos, de manera que costillas de alta densidad 3b están entrecruzadas formando una retícula que define múltiples celdas de configuración aproximadamente rómbica. Aquí, ambas costillas de alta densidad 3b están conectadas a las capas interior y exterior continuas de alta densidad 3a, 3c y a las paredes de cerramiento de alta densidad 3d, y el relleno de baja densidad 4 está configurado como una pluralidad de bloques curvados de forma aproximadamente rómbica. Se comprenderá que este segundo ejemplo de realización puede generalizarse para cualquier otro número de costillas de alta densidad 3b mayor que dos.In Fig. 2 a second example of embodiment of the ultralight interchangeable jacket of the present invention is shown, where the stratified structure 2 includes two high density rib formations 3b of helical configuration with the same direction of rotation. Both high density ribs 3b are connected to the continuous inner and outer layers of high density 3a, 3c and the high density enclosure walls 3d, and thus the low density filling 4 has the form of two helical blocks with the same direction rotation. It will be understood that this second embodiment can be generalized for any other number of high density ribs 3b greater than two. In Fig. 3 a third example of embodiment of the ultralight interchangeable jacket of the present invention is shown, where the stratified structure 2 includes two high density rib formations 3b of helical configuration with opposite directions of rotation, so that ribs of High density 3b are crosslinked forming a grid that defines multiple approximately rhombic configuration cells. Here, both high density ribs 3b are connected to the continuous inner and outer layers of high density 3a, 3c and the high density enclosure walls 3d, and the low density padding 4 is configured as a plurality of curved blocks of shape approximately rhombic It will be understood that this second embodiment can be generalized for any other number of high density ribs 3b greater than two.
En Ia Fig. 4 se muestra un cuarto ejemplo de realización de Ia camisa intercambiable ultraligera de Ia presente invención, donde Ia estructura estratificada 2 incluye una pluralidad de costillas de alta densidad 3b de configuración discoidal, paralelas a las paredes de cerramiento de alta densidad 3d situadas en los extremos de Ia camisa. Dicha pluralidad de costillas de alta densidad 3b están conectadas a las capas interior y exterior continuas de alta densidad 3a, 3c, y el relleno de baja densidad 4 está configurado como una pluralidad de bloques de forma anular.In Fig. 4 a fourth example of embodiment of the ultralight interchangeable jacket of the present invention is shown, where the stratified structure 2 includes a plurality of high density ribs 3b of discoidal configuration, parallel to the walls of high density enclosure 3d located at the ends of the shirt. Said plurality of high density ribs 3b are connected to the continuous inner and outer layers of high density 3a, 3c, and the low density padding 4 is configured as a plurality of annular shaped blocks.
Un experto en Ia técnica será capaz de efectuar modificaciones y variaciones a partir de los ejemplos de realización mostrados y descritos sin salirse del alcance de Ia presente invención según está definido en las reivindicaciones adjuntas. One skilled in the art will be able to make modifications and variations from the examples of embodiment shown and described without departing from the scope of the present invention as defined in the appended claims.

Claims

REIVINDICACIONES
1- Camisa intercambiable ultraligera de alta resistencia para soporte de elementos de impresión o laminación sometidos a altas presiones de trabajo, del tipo que comprende un núcleo tubular (1) central adaptado para ser acoplado sobre un eje, definiendo dicho núcleo tubular (1) una superficie exterior sobre Ia cual se halla dispuesta una estructura estratificada (2) que comprende una pluralidad de estratos de uno o más componentes con diferentes densidades superpuestos en sentido radial con una capa exterior continua de alta densidad (3c), caracterizada porque dicha estructura estratificada (2) comprende una pluralidad de estratos de un componente de alta densidad superpuestos en sentido radial y separados en sentido axial formando unas costillas de alta densidad (3b) helicoidales o discoidales, estando unos espacios de separación entre las citadas costillas de alta densidad (3b) llenos de un componente de baja densidad formando un relleno de baja densidad (4), y estando dicha capa exterior continua de alta densidad (3c) soportada en dichas costillas de alta densidad (3b) y en dicho relleno de baja densidad (4).1- High-strength, ultra-light interchangeable shirt for supporting printing or laminating elements subjected to high working pressures, of the type comprising a central tubular core (1) adapted to be coupled on an axis, said tubular core (1) defining a outer surface on which a stratified structure (2) is provided comprising a plurality of layers of one or more components with different densities superimposed in a radial direction with a continuous outer layer of high density (3c), characterized in that said stratified structure ( 2) comprises a plurality of layers of a high density component superimposed radially and axially separated forming high-density ribs (3b) helical or discoidal, with separation spaces between said high-density ribs (3b) filled with a low density component forming a low density fill (4), and said ca being continuous high density outer pa (3c) supported on said high density ribs (3b) and on said low density padding (4).
2.- Camisa, según Ia reivindicación 1 , caracterizada porque dicho componente de alta densidad es poliuretano de alta densidad y dicho componente de baja densidad es poliuretano de baja densidad. 2. Shirt according to claim 1, characterized in that said high density component is high density polyurethane and said low density component is low density polyurethane.
3.- Camisa, según Ia reivindicación 1 ó 2, caracterizada porque Ia densidad de dicho componente de alta densidad está comprendida entre 1 ,0 g/cm3 y 1 ,6 g/cm3.3. Shirt according to claim 1 or 2, characterized in that the density of said high density component is between 1.0 g / cm 3 and 1.6 g / cm 3 .
4.- Camisa, según Ia reivindicación 1 , caracterizada porque comprende al menos dos formaciones de costillas de alta densidad (3b) de configuración helicoidal con un mismo sentido de giro. 4. Shirt according to claim 1, characterized in that it comprises at least two high-density rib formations (3b) of helical configuration with the same direction of rotation.
5.- Camisa, según Ia reivindicación 1 , caracterizada porque comprende al menos dos formaciones de costillas de alta densidad (3b) de configuración helicoidal entrecruzadas, con sentidos de giro opuestos.5. Shirt, according to claim 1, characterized in that it comprises at least two high density rib formations (3b) of interlocking helical configuration, with opposite directions of rotation.
6.- Camisa, según una cualquiera de las reivindicaciones precedentes, caracterizada porque comprende unas paredes de cerramiento de alta densidad (3d) discoidales cerrando Ia estructura estratificada (2) en los extremos de Ia camisa.6. Shirt, according to any one of the preceding claims, characterized in that it comprises high density (3d) enclosure walls closing the stratified structure (2) at the ends of the jacket.
7 '.- Camisa, según una cualquiera de las reivindicaciones precedentes, caracterizada porque comprende una pluralidad de estratos de un componente de alta densidad superpuestos en sentido radial formando una capa interior continua de alta densidad (3a) en contacto con dicha superficie exterior del núcleo tubular (1) y sobre Ia cual están dispuestas las costillas de alta densidad (3b) y el relleno de baja densidad (4). 7. A shirt according to any one of the preceding claims, characterized in that it comprises a plurality of layers of a high density component superimposed radially forming a continuous high density inner layer (3a) in contact with said outer surface of the core tubular (1) and on which the high density ribs (3b) and the low density filling (4) are arranged.
8.- Método de fabricación de una camisa intercambiable ultraligera de alta resistencia para soporte de elementos de impresión o laminación sometidos a altas presiones de trabajo, del tipo que comprende depositar múltiples estratos superpuestos en sentido radial de un componente fluido solidificable de diferentes densidades sobre una superficie exterior de un núcleo tubular (1) central, mientras éste está girando, mediante una o más boquillas inyectoras instaladas en un carro móvil que es desplazado en un carril paralelo al eje de dicho núcleo tubular (1), caracterizado porque comprende: depositar múltiples estratos de un componente de alta densidad separados en un sentido axial para formar unas costillas helicoidales o discoidales de alta densidad (3b); rellenar con componente de baja densidad unos espacios de separación entre las citadas costillas de alta densidad (3b) para formar en ellos un relleno de baja densidad (4); y depositar múltiples estratos de un componente de alta densidad para formar una capa exterior continua de alta densidad (3c) soportada en dichas costillas de alta densidad (3b) y en dicho relleno de baja densidad (4).8.- Method of manufacturing a high-strength, ultra-light interchangeable jacket for supporting printing or laminating elements subjected to high working pressures, of the type comprising depositing multiple layers superimposed radially of a solidifiable fluid component of different densities on a outer surface of a central tubular core (1), while it is rotating, by means of one or more injection nozzles installed in a mobile carriage that is moved in a rail parallel to the axis of said tubular core (1), characterized in that it comprises: depositing multiple strata of a high density component separated in an axial direction to form helical or discoid ribs of high density (3b); fill a gap with a low density component between said high density ribs (3b) to form a low density filling (4); and depositing multiple layers of a high density component to form a continuous high density outer layer (3c) supported on said high density ribs (3b) and on said low density filler (4).
9.- Método, según Ia reivindicación 7, caracterizada porque comprende depositar múltiples estratos de un componente de alta densidad para formar una capa interior continua de alta densidad (3a) sobre dicha superficie exterior del núcleo tubular (1) antes de depositar las costillas de alta densidad (3b) y el relleno de baja densidad (4).9. Method according to claim 7, characterized in that it comprises depositing multiple layers of a high density component to form a continuous inner layer of high density (3a) on said outer surface of the tubular core (1) before depositing the ribs of high density (3b) and low density fill (4).
10.- Método, según Ia reivindicación 7, caracterizada porque comprende depositar múltiples estratos de un componente de alta densidad separados en un sentido axial para formar unas paredes de cerramiento de alta densidad (3d) discoidales en los extremos de Ia camisa. 10. Method, according to claim 7, characterized in that it comprises depositing multiple layers of a high density component separated in an axial direction to form high-density (3d) enclosure walls in the ends of the jacket.
PCT/ES2009/000569 2008-12-11 2009-12-11 High-strength, ultra-light interchangeable sleeve for supporting printing or rolling elements subject to high working pressures WO2010066923A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09831498.2A EP2368719B1 (en) 2008-12-11 2009-12-11 High-strength, ultra-light interchangeable sleeve for supporting printing or rolling elements subject to high working pressures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200803564 2008-12-11
ES200803564A ES2363908B1 (en) 2008-12-11 2008-12-11 HIGH RESISTANCE ULTRALIGERA EXCHANGABLE SHIRT FOR SUPPORT OF PRINT OR ROLLING ELEMENTS SUBJECT TO HIGH WORK PRESSURES.

Publications (1)

Publication Number Publication Date
WO2010066923A1 true WO2010066923A1 (en) 2010-06-17

Family

ID=42242373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2009/000569 WO2010066923A1 (en) 2008-12-11 2009-12-11 High-strength, ultra-light interchangeable sleeve for supporting printing or rolling elements subject to high working pressures

Country Status (3)

Country Link
EP (1) EP2368719B1 (en)
ES (1) ES2363908B1 (en)
WO (1) WO2010066923A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131325A (en) * 1991-04-30 1992-07-21 Flexographic Technology, Inc. Reusable printing sleeve
ES2140289A1 (en) * 1996-04-02 2000-02-16 Windmoeller & Hoelscher Casing for printing rollers
US6182568B1 (en) * 1997-11-14 2001-02-06 Sumitomo Rubber Industries, Ltd. Printing blanket
US6688226B2 (en) 2000-10-03 2004-02-10 Erminio Rossini, S.P.A. Sleeve for blanket cylinder of an indirect or offset printing machine and method of making said sleeve
ES2292294A1 (en) * 2005-04-21 2008-03-01 Personas Y Tecnologia, S.L. Shell for cylindrical printer, has cylindrical shell and hollow elastic material, where elastic laminar has low elasticity sheet that stretches, so that excess elasticity is controlled
WO2008036796A1 (en) * 2006-09-20 2008-03-27 Day International, Inc. Printing blanket or sleeve including thermoplastic polyurethane or thermoplastic polyurethane alloy layers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131325A (en) * 1991-04-30 1992-07-21 Flexographic Technology, Inc. Reusable printing sleeve
ES2140289A1 (en) * 1996-04-02 2000-02-16 Windmoeller & Hoelscher Casing for printing rollers
US6182568B1 (en) * 1997-11-14 2001-02-06 Sumitomo Rubber Industries, Ltd. Printing blanket
US6688226B2 (en) 2000-10-03 2004-02-10 Erminio Rossini, S.P.A. Sleeve for blanket cylinder of an indirect or offset printing machine and method of making said sleeve
ES2292294A1 (en) * 2005-04-21 2008-03-01 Personas Y Tecnologia, S.L. Shell for cylindrical printer, has cylindrical shell and hollow elastic material, where elastic laminar has low elasticity sheet that stretches, so that excess elasticity is controlled
WO2008036796A1 (en) * 2006-09-20 2008-03-27 Day International, Inc. Printing blanket or sleeve including thermoplastic polyurethane or thermoplastic polyurethane alloy layers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2368719A4 *

Also Published As

Publication number Publication date
ES2363908B1 (en) 2012-07-04
EP2368719B1 (en) 2013-05-29
EP2368719A4 (en) 2012-10-17
EP2368719A1 (en) 2011-09-28
ES2363908A1 (en) 2011-08-19

Similar Documents

Publication Publication Date Title
ES2459967T3 (en) Structural beam of a wind turbine blade and its manufacturing process
ES2948681T3 (en) Rim fiber architecture of a composite wheel
ES2638164T3 (en) A manufacturing process of cylindrical bodies of one-piece fuselage in a composite material
CN104015919B (en) The method manufacturing composite core
RU2555747C2 (en) Fabrication of solid-oxide fuel cell
JP7098261B2 (en) Polar cap reinforced pressure vessel
ES2745808T3 (en) Circumferential reinforcements for composite fan housings
ES2690301T3 (en) Wind power installation rotor blade
US20190184677A1 (en) Method and System for Reinforced Pipe Insulation
ES2389635T3 (en) Helicopter blade chuck with roller assembly and methods to manufacture and use it
ES2846781T3 (en) Method and mandrel to make a wrapped object
US20050062337A1 (en) Composite bicycle rim and method for producing it
US20070175577A1 (en) Composite construction members and method of making
ES2278582T3 (en) METHOD AND APPLIANCE TO PRODUCE A HOUSING OF A COVER.
CN104015920B (en) Manufacture the system and method for composite core
US11167520B2 (en) Composite core with non-traditional geometries
JP2008169893A (en) Pressure vessel, and its manufacturing method
ES2597279T3 (en) Expandable multilayer sleeve for a printing press cylinder, particularly for flexographic printing
US10024301B2 (en) Textile composite wind turbine blade
ES2385514A1 (en) Method for the repair and/or prevention of leaks in pressure vessels or pipes and structural composite reinforcement used
EP3059084A1 (en) Bush for filling the space in a sleeve for use in flexo-printing, sleeve and method for manufacturing
EP3075524B1 (en) Pressure bulkhead and method for producing a pressure bulkhead
WO2010066923A1 (en) High-strength, ultra-light interchangeable sleeve for supporting printing or rolling elements subject to high working pressures
WO2010126399A2 (en) Vehicle and vehicle carrying and propelling element
US20130199043A1 (en) Method of manufacturing a turbine blade, system for manufacturing a turbine blade, intermediate member for manufacturing a turbine blade, and turbine blade manufactured by means of the aforementioned method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09831498

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2009831498

Country of ref document: EP