ES2219858T3

ES2219858T3 - DEVICE FOR OBTAINING SECURITY SECURITY POSITIONABLE ON PAPER OR OTHER LAMINARY ELEMENTS.

Info

Publication number: ES2219858T3
Application number: ES98500139T
Authority: ES
Inventors: Nicolas Tadeo Ciccone; Hector Hugo Ciccone
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-14
Filing date: 1998-06-10
Publication date: 2004-12-01
Anticipated expiration: 2018-06-10
Also published as: EP0893202B1; EP0893202A2; EP0893202A3

Abstract

SE PRESENTA UN DISPOSITIVO PARA OBTENER SELLOS DE SEGURIDAD APLICABLES A PAPELES U OTROS ELEMENTOS LAMINARES. EL DISPOSITIVO COMPRENDE UN CILINDRO DE SOPORTE (A) PARA EL PAPEL (3) DOTADO DE REALCES (5) SEPARADOS DE UNA RUEDA (B) DE PERIFERIA ABRASIVA (2'') A LO LARGO DE UNA DISTANCIA QUE ES MAS CORTA QUE LA ALTURA DE LOS PICOS (5'') DE LOS REALCES (5); EL DISPOSITIVO INCLUYE MEDIOS ANTIDESLIZANTES DE PRESION (C) Y MEDIOS DE AJUSTE (D) PARA APLICAR EL PAPEL (3) A LAS PAREDES LATERALES (1'') DEL CILINDRO (A) ADEMAS DE MEDIOS DE IMPULSION ANGULAR (15) EN EL CILINDRO DE SOPORTE (B). EN VISTA QUE LA DISTANCIA QUE SEPARA LA RUEDA ABRASIVA (B) DEL CILINDRO DE SOPORTE (A) ES MAS CORTA QUE LA ALTURA DE LOS PICOS (5'') DE LOS RESALTOS (5) CUANDO EL RESALTO (5) PENETRA EN LA ZONA DE CONTACTO, LA PERIFERIA ABRASIVA (2'') DE LA RUEDA (B) ABRADE LOS EXTREMOS DE LOS PICOS (5''), DANDO COMO RESULTADO LA IMPLEMENTACION DE UNA MARCA DE AGUA. LOS MEDIOS ANTIDESLIZANTES DE PRESION (C) SUJETAN EL PAPEL (3) EN SU SITIO, MIENTRAS QUE LOS MEDIOS DE AJUSTE (D) IMPIDEN CUALQUIER DESALINEACION DEL PAPEL (3) EN LA ZONA CRITICA DE ABRASION.A DEVICE IS PRESENTED TO OBTAIN SECURITY SEALS APPLICABLE TO PAPERS OR OTHER LAMINARY ELEMENTS. THE DEVICE INCLUDES A SUPPORT CYLINDER (A) FOR THE PAPER (3) EQUIPPED WITH REALCES (5) SEPARATED FROM A WHEEL (B) OF ABRASIVE PERIPHERY (2 '') ALONG A DISTANCE THAT IS SHORTER THAN HEIGHT OF THE PEAKS (5 '') OF THE REALCES (5); THE DEVICE INCLUDES ANTI-SLIP PRESSURE MEANS (C) AND ADJUSTMENT MEANS (D) TO APPLY THE PAPER (3) TO THE SIDE WALLS (1 '') OF THE CYLINDER (A) IN ADDITION TO ANGULAR DRIVE MEANS (15) IN THE CYLINDER SUPPORT (B). IN VIEW THAT THE DISTANCE THAT SEPARATES THE ABRASIVE WHEEL (B) FROM THE SUPPORT CYLINDER (A) IS SHORTER THAN THE HEIGHT OF THE PICOS (5 '') OF THE HIGHLIGHTS (5) WHEN THE HIGHLIGHT (5) PENETRA IN THE AREA CONTACT, THE ABRASIVE PERIPHERY (2 '') OF THE WHEEL (B) OPENS THE EXTREME OF THE PEAKS (5 ''), GIVING THE IMPLEMENTATION OF A WATER BRAND AS A RESULT. THE NON-SLIP PRESSURE MEDIA (C) SUBJECT THE ROLE (3) TO YOUR SITE, WHILE THE MEANS OF ADJUSTMENT (D) PREVENT ANY PAPER DESALINATION (3) IN THE CRITICAL ABRASION ZONE.

Description

Dispositivo para obtener timbrados de seguridad posicionables en papel u otros elementos laminares.Device for obtaining security ringing positionable on paper or other laminar elements.

I - Statement of reasons

La presente invención se refiere a un dispositivo para obtener timbrados de seguridad posicionables en papel, u otros elementos laminares, y tiene por finalidad producir la denominada "marca de agua" mediante la abrasión parcial de los relieves o bajorrelieves del papel de aplicación.The present invention relates to a device to obtain security stamped positions on paper, or others laminar elements, and is intended to produce the so-called "watermark" by partial abrasion of the reliefs or bas-reliefs of application paper.

Como es sabido, en la producción de papel hay partidas a las que se las dota de un timbrado de seguridad comúnmente conocido como marca de agua. Tradicionalmente estas marcas de agua se han utilizado como medio de seguridad en la impresión de documentos e impresos con gran tiraje y alto costo, tal como es el caso de la emisión de papel moneda. También se ha encontrado una aplicación como indicio de la alta calidad del papel marcado.As is known, in paper production there are items that are provided with a security ring commonly known as watermark. Traditionally you are watermarks have been used as a means of safety in the printing of documents and prints with high circulation and high cost, such as is the case with the issuance of paper money. It has also found an application as an indication of the high quality of the paper marked.

Los dispositivos tradicionales para la conformación de estas marcas de agua han consistido en medios auxiliares de las máquinas laminadoras de papel, que incluían cuños o clisés destinados a incrementar el espesor de los laminadores en la zona de laminado donde se deseaba producir el marcado.Traditional devices for conformation of these watermarks have consisted of means auxiliary paper laminating machines, which included wedges or cliches intended to increase the thickness of the mills in the rolling area where it was desired to produce the marking.

Es decir, que los cuños y sus medios de montaje y regulación forman parte de la máquina que elabora el papel, en calidad de medios auxiliares de la misma. El resultado de la aplicación de estos medios es que la pasta del papel se ordena a su paso por los laminadores, reduciéndose el espesor del papel en la zona de acuñado y obteniéndose una reproducción en relieve de la conformación del cuño. El menor espesor en la zona de acuñado se traduce en un efecto de transparencia distinto al resto del papel, quedando así definida la marca de agua.That is, that the wedges and their mounting means and regulation are part of the machine that makes the paper, in quality of auxiliary means of it. The result of the application of these means is that the pulp of the paper is ordered to its pass through the laminators, reducing the thickness of the paper in the coined area and obtaining a relief reproduction of the conformation of the wedge. The smallest thickness in the coining area is translates into a transparency effect different from the rest of the paper, thus defining the watermark.

Debido a que el dispositivo empleado implicaba modificaciones en la preparación de las máquinas productoras del papel, la realización del timbrado se ha visto limitada a grandes producciones por su alto costo.Because the device used implied modifications in the preparation of the machines producing the paper, the completion of ringing has been limited to large productions for its high cost.

Sin embargo, posteriormente, DE 3718452, de los mismos titulares de la presente invención, aporta un nuevo procedimiento para producir el timbrado de seguridad que utiliza un dispositivo basado en un cilindro portacuños y una rueda abrasiva.However, later, DE 3718452, of the same holders of the present invention, provides a new procedure to produce security ringing using a device based on a cylinder holder and a wheel abrasive

Este dispositivo acuñador implica un avance con respecto a los dispositivos tradicionales, ya que permite realizar pequeñas producciones a un costo razonable y sin que ello afecte la producción de papel, debido a que el timbrado se realiza con un dispositivo independiente de la máquina laminadora.This coining device implies an advance with compared to traditional devices, since it allows to perform small productions at a reasonable cost and without affecting the paper production, because the stamping is done with a device independent of the laminating machine.

No obstante ello, surgen algunos inconvenientes tales como las dificultades para lograr un buen ajuste del papel contra el cilindro acuñador. En efecto, los cuños del cilindro separan al papel de las paredes laterales del cilindro facilitando su corrimiento con respecto al cilindro sobre el que se halla montado.However, some inconveniences arise such as difficulties in achieving a good paper setting against the coining cylinder. Indeed, the cylinder seats separate the paper from the side walls of the cylinder facilitating its shift with respect to the cylinder on which it is located mounted.

Además, esta separación entre papel y cilindro permite la eventual formación de pliegues del papel en el sector adyacente a la zona de contacto entre el medio de abrasión y el cilindro acuñador. Junto con esto, pequeños desajustes, desplazamientos no previstos o roturas del papel tienen como consecuencia que el medio abrasivo pueda tomar contacto con algunos de los cuños del cilindro inutilizándolos.In addition, this separation between paper and cylinder allows the eventual formation of paper folds in the sector adjacent to the contact area between the abrasion medium and the coining cylinder. Along with this, small mismatches, unforeseen shifts or paper breaks have as consequence that the abrasive medium can make contact with some of the cylinder wedges rendering them useless.

Todos estos inconvenientes son resueltos satisfactoriamente por el dispositivo de la presente invención. En primer lugar debe aclararse que no se trata de un dispositivo destinado a conformar el relieve del papel, ya que para ello se cuenta con dispositivos independientes, sean éstos planos o rotativos, por ejemplo un cilindro acuñador que presiona el papel contra una superficie en la que se encuentran los cuños.All these problems are resolved. satisfactorily by the device of the present invention. In first of all it should be clarified that it is not a device destined to conform the relief of the paper, since for this It has independent devices, whether these are flat or rotary, for example a coining cylinder that presses the paper against a surface on which the wedges are located.

El presente dispositivo comprende un cilindro soporte destinado al papel con los relieves ya realizados. Este cilindro soporte está separado de una rueda de periferia abrasiva por una distancia menor que la altura de las crestas del citado relieve; incluyendo el dispositivo presionadores de anticorrimiento y medios ajustadores del papel contra las paredes laterales del cilindro, así como también medios de accionamiento angular del citado cilindro soporte.The present device comprises a cylinder support for paper with reliefs already made. East Support cylinder is separated from an abrasive periphery wheel for a distance less than the height of the crest of the aforementioned relief; including anti-corrosion pressures device and paper adjusting means against the side walls of the cylinder, as well as angular drive means of the cited support cylinder.

Al girar el cilindro soporte, los medios presionadores de anticorrimiento fijan posicionalmente al papel, ya que se trata de cepillos cuyos manojos filiformes presionan hasta lograr un íntimo contacto entre las paredes laterales del cilindro y la cara de reverso del papel, impidiendo el corrimiento del mismo.By rotating the support cylinder, the means anti-corrosion pressures positionally fix the paper, and which is about brushes whose filiform bundles press up achieve intimate contact between the side walls of the cylinder and the reverse side of the paper, preventing the sliding of the same.

Ya en las cercanías de la zona de contacto entre la rueda abrasiva y el cilindro, los medios ajustadores impiden cualquier desajuste del papel en la zona crítica de abrasión. En las distintas formas de realización previstas, tanto las microperforaciones comunicadas con una cámara de vacío, como el aire comprimido eyectado por picos sopladores, ajusta el papel contra el cilindro, mientras que la presencia de la boca de aspiración permite despejar, de impurezas de distinto origen la zona de contacto.Already in the vicinity of the contact area between abrasive wheel and cylinder, adjusting means prevent any mismatch of paper in the critical abrasion zone. In the different planned embodiments, both microperforations communicated with a vacuum chamber, such as air tablet ejected by blower spikes, adjust the paper against the cylinder, while the presence of the suction mouth allows clear, from impurities of different origin the contact area.

Finalmente como la distancia que separa a la rueda abrasiva del cilindro soporte es menor que la altura de las crestas del relieve, cuando este último entra en la zona de contacto, la periferia abrasiva de la rueda efectúa la abrasión de los extremos de dichas crestas con lo que resulta producida la marca de agua, pero sin ninguno de los inconvenientes que, como se ha señalado, ocasionan los dispositivos ya conocidos.Finally as the distance that separates the Abrasive wheel of the support cylinder is less than the height of the relief ridges, when the latter enters the area of contact, the abrasive periphery of the wheel causes abrasion of the ends of said ridges with which the mark is produced of water, but without any of the inconveniences that, as it has been indicated, cause the devices already known.

II - Illustration

Para mayor claridad y comprensión del objeto del invento, se lo ilustra con varias figuras en las que ha sido representado en una de sus formas preferidas de realización, todo a simple título de ejemplo ilustrativo, no limitativo:For clarity and understanding of the purpose of the invention, it is illustrated with several figures in which it has been represented in one of its preferred embodiments, all at Simple illustrative, non-limiting example title:

La figura 1 es un corte transversal esquemático del presente dispositivo. Se distingue la periferia abrasiva de la rueda, así como la disposición del cepillo presionador de anticorrimiento. Más cercanos a la zona de contacto entre cilindro y rueda abrasiva se ven los medios ajustadores del papel, en este caso un motocompresor conectado a un pico soplador complementado por un cepillo y una boca de aspiración.Figure 1 is a schematic cross section. of the present device. The abrasive periphery of the wheel, as well as the arrangement of the pressure brush of anti-corrosion Closer to the contact zone between cylinder and abrasive wheel the paper adjusting means are seen, in this case a motocompressor connected to a blower peak complemented by a brush and a suction mouth.

La figura 2 es otro corte transversal en el que los medios ajustadores están constituidos por un cepillo doble con un mecanismo (no ilustrado) ajustador controlado por un circuito de acción neumática.Figure 2 is another cross section in which the adjusting means are constituted by a double brush with an adjuster mechanism (not illustrated) controlled by a circuit of pneumatic action

La figura 3 es otro corte transversal en el que los medios ajustadores están constituidos por microperforaciones que atraviesan las paredes laterales del cilindro. Dentro de este último se puede apreciar la cámara neumática conectada a una bomba de vacío.Figure 3 is another cross section in which the adjusting means are constituted by microperforations that they cross the side walls of the cylinder. Within the latter you can see the pneumatic chamber connected to a pump empty.

La figura 4 ilustra otra forma de realización en la que los medios ajustadores comprenden rodillos presionadores regulables mediante el circuito de acción neumática.Figure 4 illustrates another embodiment in which the adjusting means comprise pressing rollers adjustable by the pneumatic action circuit.

La figura 5 es un corte transversal de un dispositivo comprendido en el arte previo. A los efectos ilustrativos se han agregado parte de los medios utilizados por la presente invención (presionadores de anticorrimiento y ajustadores del papel), pudiendo verse cómo los mismos no llegan a eliminar la separación entre papel y cilindro ocasionada por la presencia de los cuños.Figure 5 is a cross section of a device included in the prior art. To the effects illustrative part of the means used by the present invention (anti-corrosion pressures and adjusters of the paper), being able to see how they do not get to eliminate the separation between paper and cylinder caused by the presence of wedges

La figura 6A es una vista esquemática lateral en la que se ilustra el principio de funcionamiento del dispositivo conocido de la figura 5.Figure 6A is a schematic side view in which is illustrated the principle of operation of the device known from figure 5.

La figura 6B es una vista lateral esquemática en la que se ilustra la operación de acuñado mediante un dispositivo basado en un cilindro y una superficie acuñada. Puede verse cómo dicho cilindro trabaja sobre la cara de reverso del papel.Figure 6B is a schematic side view in which illustrates the coining operation by means of a device based on a cylinder and a coined surface. It can be seen how said cylinder works on the reverse side of the paper.

La figura 6C es una vista esquemática lateral en la que se ilustra cómo trabaja la rueda abrasiva en el dispositivo de la presente invención. Se puede apreciar cómo la periferia abrasiva de la rueda desgasta los extremos de las crestas de los relieves.Figure 6C is a schematic side view in which illustrates how the abrasive wheel works on the device of the present invention. You can see how the periphery Abrasive wheel wears the ends of the ridges of the reliefs

En las distintas figuras, los mismos números de referencia indican partes iguales o correspondientes, y se han señalado con las letras los conjuntos de varios elementos.In the different figures, the same numbers of reference indicate equal or corresponding parts, and have marked with the letters the sets of various elements.

List of the main references

       \dotable{\tabskip\tabcolsep#\hfil\+#\hfil\tabskip0ptplus1fil\dddarstrut\cr}{
 (a) \+ cilindro soporte del papel\cr  (b) \+ rueda abrasiva\cr  (c)
\+ medios presionadores de anticorrimiento\cr  (d) \+ medios
ajustadores del papel\cr  (1) \+ cuerpo del cilindro soporte (a)\cr 
(1') \+ paredes laterales del cilindro soporte (a)\cr  (2) \+ cuerpo
de la rueda abrasiva (b)\cr  (2') \+ periferia abrasiva de la rueda
(2)\cr  (2'') \+ tela abrasiva recambiable\cr  (3) \+ papel de
aplicación\cr  (3') \+ cara de anverso del papel (3)\cr  (3'') \+
cara de reverso del papel (3)\cr  (4) \+ extremos del papel (3)\cr 
(5) \+ relieves [o bajorrelieves] del papel (3)\cr  (5') \+ crestas
del relieve (5)\cr  (6) \+ medios de anclaje posicional de los
extremos\cr  \+ (4) del papel (3)\cr  (7) \+ cepillos presionadotes
de anticorrimiento\cr  (7') \+ manojos filiformes de los cepillos
(7)\cr  (8) \+ motocompresor\cr  (8') \+ conducto de aire
comprimido\cr  (9) \+ pico soplador\cr  (9') \+ cepillo ajustador\cr
 (10) \+ bomba de aspiración\cr  (10') \+ conducto de aspiración\cr 
(11) \+ boca de aspiración\cr  (12) \+ cámara neumática de vacío del
cilindro (a)\cr  (12') \+ microperforaciones que atraviesan las
paredes\cr  \+ laterales (1')\cr  (13) \+ conductos neumáticos de
succión\cr  (14) \+ bomba de vacío\cr  (15) \+ eje del cilindro
soporte (a) [conectable a\cr  \+ medios de accionamiento angular de
dicho\cr  \+ cilindro (a)]\cr  (16) \+ primer rodillo ajustador\cr 
(16') \+ segundo rodillo ajustador\cr  (17) \+ cuños para relieve\cr
 (17') \+ cuños para bajorrelieve\cr  (18) \+ cilindro
acuñador\cr}\ dotable {\ tabskip \ tabcolsep # \ hfil \ + # \ hfil \ tabskip0ptplus1fil \ dddarstrut \ cr} {
 (a) \ + paper support cylinder \ cr (b) \ + abrasive wheel \ cr (c)
\ + anti-corrosion press means \ cr (d) \ + means
paper adjusters \ cr (1) \ + support cylinder body (a) \ cr
(1 ') \ + support cylinder side walls (a) \ cr (2) \ + body
of the abrasive wheel (b) \ cr (2 ') \ + abrasive wheel periphery
(2) \ cr (2``) \ + replaceable abrasive cloth \ cr (3) \ + paper
application \ cr (3 ') \ + paper front side (3) \ cr (3' ') \ +
reverse side of paper (3) \ cr (4) \ + ends of paper (3) \ cr
(5) \ + reliefs [or bas-reliefs] of the paper (3) \ cr (5 ') \ + crests
of the relief (5) \ cr (6) \ + positional anchoring means of the
ends \ cr \ + (4) of the paper (3) \ cr (7) \ + pressed brushes
of anti-corrosion \ cr (7 ') \ + filiform bunches of brushes
(7) \ cr (8) \ + motocompressor \ cr (8 ') \ + air duct
Compressed \ cr (9) \ + blower peak \ cr (9 ') \ + adjusting brush \ cr
 (10) \ + suction pump \ cr (10 ') \ + suction duct \ cr
(11) \ + suction nozzle \ cr (12) \ + pneumatic vacuum chamber
cylinder (a) \ cr (12 ') \ + microperforations that cross the
side walls \ cr \ + (1 ') \ cr (13) \ + pneumatic ducts
suction \ cr (14) \ + vacuum pump \ cr (15) \ + cylinder shaft
support (a) [connectable to \ cr \ + angular drive means of
said \ cr \ + cylinder (a)] \ cr (16) \ + first adjuster roller \ cr
(16 ') \ + second adjuster roller \ cr (17) \ + embossing wedges \ cr
 (17 ') \ + bas-relief wedges \ cr (18) \ + cylinder
minter \ cr}

III - Main Object

A los fines especificados, el citado invento se refiere a un dispositivo para obtener timbrados de seguridad posicionables en papel (3) u otros elementos laminares que es del tipo destinado a la conformación de marcas de agua en relieves o bajorrelieves (5) del papel (3), -mediante rebajado de su espesor por abrasión parcial de las crestas (5') de dichos relieves o bajorrelieves (5)- producidos por correspondientes cuños (17); dicho dispositivo se caracteriza por comprender:For the specified purposes, said invention is refers to a device to obtain security rings positionable on paper (3) or other laminar elements that is type intended for shaping watermarks in reliefs or bas-reliefs (5) of the paper (3), - reduced by its thickness by partial abrasion of the ridges (5 ') of said reliefs or bas-reliefs (5) - produced by corresponding wedges (17); saying device is characterized by understanding:

a)to): un cilindro soporte (a) del papel (3), aplicable sobre sus paredes laterales (1') con medios de anclaje posicional (6) de sus extremos (4), dispuestos sobre el mismo cilindro (a);a support cylinder (a) of the paper (3), applicable on its side walls (1 ') with positional anchoring means (6) of its ends (4), arranged on the same cylinder (a);

b)b): una rueda (b) de periferia abrasiva (2'), conectada a medios de accionamiento rotativo, y dispuesta en las adyacencias del cilindro soporte (a) del que está separada por una distancia que es menor que la altura de las crestas (5') del relieve (5);a wheel (b) of abrasive periphery (2 '), connected to drive means rotating, and arranged in the adjacencies of the support cylinder (a) from which it is separated by a distance that is less than the height of the ridges (5 ') of the relief (5);

c)c): medios ajustadores (d) del papel (3) -sobre la superficie de las paredes laterales (1') del cilindro soporte (a)- que se hallan comprendidos en un circuito de acción neumática y que se disponen en -al menos- las cercanías de la zona de adyacencia entre el cilindro soporte (a) y la rueda abrasiva (b);adjusting means (d) of the paper (3) - on the surface of the side walls (1 ') of the support cylinder (a) - which are included in a circuit of pneumatic action and that are arranged in at least the vicinity of the adjacency zone between the support cylinder (a) and the wheel abrasive (b);

d)d): presionadores de anticorrimiento (c) del papel (3) que se proyectan contra las paredes laterales del cilindro (1'); ypressures of anti-corrosion (c) of the paper (3) projected against the side walls of the cylinder (1 '); Y

e)and): medios de accionamiento angular del cilindro soporte (15).means of angular drive of the support cylinder (15).

IV - Description

El presente dispositivo para obtener timbrados de seguridad posicionables en el papel (3) u otros elementos laminares, está destinado a la producción de marcas de agua en relieves o bajorrelieves (5) del papel (3) de aplicación, mediante el rebajado del espesor de dicho papel (3) por abrasión parcial de las crestas (5') de los citados relieves (5).The present device to obtain ringtones of safety positionable on paper (3) or other laminar elements, It is intended for the production of watermarks in reliefs or bas-reliefs (5) of the application paper (3), by recessing of the thickness of said paper (3) by partial abrasion of the ridges (5 ') of said reliefs (5).

En términos generales, este dispositivo comprende un cilindro soporte (a) del papel (3) con relieves (5), separado de una rueda (b) de periferia abrasiva (2') por una distancia menor que la altura de las crestas (5') del citado relieve (5); incluyendo el dispositivo presionadores de anticorrimiento (c) y medios ajustadores (d) del papel (3) contra las paredes laterales (1') del cilindro (a), así como también medios de accionamiento angular (15) del citado cilindro soporte (a). [Ver figuras 1, 2, 3 y 4]Generally speaking, this device comprises a paper support cylinder (a) with reliefs (5), separated from a wheel (b) of abrasive periphery (2 ') for a distance less than the height of the ridges (5 ') of said relief (5); including the anti-corrosion pressures device (c) and means paper adjusters (d) (3) against the side walls (1 ') of the cylinder (a), as well as angular drive means (15) of said support cylinder (a). [See figures 1, 2, 3 and 4]

Con mayor particularidad el dispositivo de la presente invención comprende un cilindro soporte (a) destinado al papel (3) de aplicación. Este papel (3) es aplicable sobre las paredes laterales (1') del cuerpo (1) del cilindro (a), de forma que sus extremos (4) resultan sujetos por medios de anclaje posicional (6) situados en el propio cuerpo (1) del cilindro (a). [Ver figura 1]More particularly the device of the The present invention comprises a support cylinder (a) intended for application paper (3). This paper (3) is applicable on the side walls (1 ') of the body (1) of the cylinder (a), so that its ends (4) are held by positional anchoring means (6) located in the body (1) of the cylinder (a). [See Figure one]

En las adyacencias del cilindro soporte (a) se dispone una rueda (b) que está provista de una periferia abrasiva (2') y que se halla conectada a medios de accionamiento rotativo. Esta rueda abrasiva (b) se encuentra separada del cilindro (a) por una distancia que es menor que la altura de las crestas (5') del relieve (5) conformado en el papel (3). [Ver figuras 1 y 6C]In the adjacencies of the support cylinder (a) it it has a wheel (b) that is provided with an abrasive periphery (2 ') and which is connected to rotary drive means. This abrasive wheel (b) is separated from the cylinder (a) by a distance that is less than the height of the ridges (5 ') of the relief (5) shaped on paper (3). [See figures 1 and 6C]

En distintas formas de realización el cuerpo (2) de la rueda (b) de periferia abrasiva (2'), puede consistir en una piedra abrasiva o bien en un tambor cuya periferia (2') cilíndrica se halla enfrentada a las paredes laterales (1') del cilindro soporte (a). Este tambor tiene fijada una tela abrasiva (2'') recambiable que reviste la citada periferia (2'). [Ver figura 2]In different embodiments the body (2) of the wheel (b) of abrasive periphery (2 '), may consist of a abrasive stone or in a drum whose cylindrical periphery (2 ') is facing the side walls (1 ') of the cylinder support. This drum has an abrasive cloth fixed (2 '') replaceable covering said periphery (2 '). [See figure 2]

Por otra parte, en las cercanías de la zona de adyacencia entre el cilindro soporte (a) y la rueda abrasiva (b) se disponen medios ajustadores (d) del papel (3). Estos medios ajustadores (d), que se hallan comprendidos en un circuito de acción neumática, ajustan el papel (3) contra la superficie de las paredes laterales (1') del cilindro soporte (a).Moreover, in the vicinity of the area of Adjacency between the support cylinder (a) and the abrasive wheel (b) is they have adjusting means (d) of the paper (3). These means adjusters (d), which are included in an action circuit pneumatic, adjust the paper (3) against the surface of the walls sides (1 ') of the support cylinder (a).

En una forma de realización estos medios ajustadores (d) consisten en un circuito neumático que comprende un motocompresor (8) provisto de un depósito de aire comprimido. Este depósito tiene un pico de alimentación, como salida del fluido a presión, que esta conectado a un conducto (8') de aire comprimido mediante el cual se vincula a un pico soplador (9). Este último (9) posee su boca eyectora enfrentada al papel (3) y orientada hacia la zona de contacto entre dicho papel (3) y la rueda abrasiva (b). [Ver figura 1]In an embodiment these means adjusters (d) consist of a pneumatic circuit comprising a motocompressor (8) provided with a reservoir of compressed air. East tank has a feeding peak, as fluid outlet to pressure, which is connected to a compressed air duct (8 ') whereby it is linked to a blower peak (9). The latter (9) It has its ejector mouth facing the paper (3) and oriented towards the contact area between said paper (3) and the abrasive wheel (b). [See Figure 1]

Partiendo del mismo principio se ha previsto otra forma en la que el conducto (8') de aire comprimido se conecta con uno o dos picos sopladores (9), cada uno de los cuales tiene su boca dispuesta en la proximidad de la zona de contacto entre el papel (3) y la rueda abrasiva (b), y a la vez enfrentada a uno de los bordes de dicho papel (3) de forma que efectúa una proyección de aire rasante sobre el mismo.Starting from the same principle, another one is planned way in which the compressed air duct (8 ') is connected with one or two blowing peaks (9), each of which has its mouth arranged in the vicinity of the contact area between the paper (3) and the abrasive wheel (b), and at the same time facing one of the edges of said paper (3) so that it performs an air projection flush over it.

En otra posible forma de realización, los medios ajustadores (d) del papel (3) consisten en un circuito neumático compuesto por un motocompresor (8) conectado mediante un conducto (8') correspondiente a un pico soplador (9) cuya boca eyectora enfrenta al papel (3). Adyacentemente a este pico soplador (9) se halla una boca de aspiración (11) que, conectada mediante un conducto (10') respectivo a una bomba de aspiración (10), está orientada hacia la zona de contacto entre el papel (3) y la rueda (b) de periferia abrasiva (2'). Próximamente con respecto al pico soplador (9) y la boca de aspiración (11) se dispone un cepillo ajustador (9') complementario. [Ver figura 1]In another possible embodiment, the means paper adjusters (d) (3) consist of a pneumatic circuit composed of a motor compressor (8) connected by a conduit (8 ') corresponding to a blower spout (9) whose ejector mouth face the paper (3). Adjacent to this peak blower (9) is find a suction mouth (11) which, connected by a conduit (10 ') respective to a suction pump (10), is oriented towards the contact area between the paper (3) and the wheel (b) of abrasive periphery (2 '). Coming soon with respect to the peak blower (9) and the suction mouth (11) a brush is arranged complementary adjuster (9 '). [See figure 1]

También se han previsto variantes en las que los medios ajustadores (d) del papel (3) comprenden medios tales como cepillos (9') o cilindros (16) (16') de ajuste variable contra las paredes laterales (1') del cilindro soporte (a). A los efectos de permitir la variación del ajuste, se incluye un mecanismo ajustador de avance-retroceso [no ilustrado] de acción neumática. [Tal como se puede ver en las figuras 2 y 4]Variations are also planned in which the paper adjusting means (d) (3) comprise means such as brushes (9 ') or cylinders (16) (16') of variable adjustment against side walls (1 ') of the support cylinder (a). For the purposes of allow adjustment variation, an adjusting mechanism is included forward-backward [not illustrated] action pneumatics. [As can be seen in Figures 2 and 4]

Otra forma de realización prevista, comprende medios ajustadores (d) consistentes en un circuito neumático compuesto por una cámara neumática (12) y una bomba de vacío (14). En esta variante la cámara neumática (12) está conformada dentro del propio cuerpo (1) del cilindro soporte (a) y tiene como entrada la succión un pico de conexión con la red neumática, mientras que por salida de succión posee una pluralidad de microperforaciones (12') que atraviesan las paredes laterales (1') del cilindro (a) y se distribuyen en toda la superficie útil de su periferia. La entrada de la cámara (12) está conectada a la bomba de vacío (14) mediante un correspondiente conducto de vacío (13). [Ver figura 3]Another intended embodiment comprises adjusting means (d) consisting of a pneumatic circuit composed of a pneumatic chamber (12) and a vacuum pump (14). In this variant the pneumatic chamber (12) is formed within the own body (1) of the support cylinder (a) and has as input the suction a peak connection with the pneumatic network, while by suction outlet has a plurality of microperforations (12 ') crossing the side walls (1 ') of the cylinder (a) and distributed over the entire useful surface of its periphery. The entrance of the chamber (12) is connected to the vacuum pump (14) by a corresponding vacuum duct (13). [See figure 3]

El dispositivo de la presente invención también comprende medios presionadores de anticorrimiento (c) del papel (3). En una forma preferida de realización estos presionadores de anticorrimiento (c) son cepillos (7) cuyos manojos filiformes (7') se proyectan contra las paredes laterales (1') del cilindro (a). Con respecto a su ubicación, los cepillos presionadores de anticorrimiento (7) se disponen en las cercanías de los medios ajustadores (d) de papel (3), antepuestos a los mismos con relación al sentido de giro del cilindro soporte (a). También se ha previsto la posibilidad de disponer una pluralidad de cepillos presionadores (7) distribuidos frente a toda la periferia del mencionado cilindro soporte (a). [Ver figuras 1 a 4]The device of the present invention also comprises anti-corrosion press means (c) of the paper (3). In a preferred embodiment these pressures of anti-corrosion (c) are brushes (7) whose filiform bundles (7 ') they project against the side walls (1 ') of the cylinder (a). With regarding its location, the press brushes of anti-corruption (7) are arranged in the vicinity of the media paper adjusters (d) (3), placed before them in relation to to the direction of rotation of the support cylinder (a). It is also planned the possibility of having a plurality of press brushes (7) distributed across the entire periphery of said cylinder support. [See figures 1 to 4]

En otras formas de realización posibles, los presionadores de anticorrimiento (c) del papel (3) pueden estar constituidos por rodillos cuyas periferias ruedan sobre la periferia del cilindro soporte (a).In other possible embodiments, the anti-corrosion pressures (c) of the paper (3) may be constituted by rollers whose peripheries roll on the periphery of the support cylinder (a).

El dispositivo de la presente invención se completa con medios de accionamiento angular (15) del ya citado cilindro soporte (a) del papel (3).The device of the present invention is complete with angular drive means (15) of the aforementioned paper support cylinder (a) (3).

El conjunto funciona de la siguiente manera:The set works as follows way:

En el estado de la técnica que podría considerarse más cercano, los cuños (17) para relieve (5) se disponen en las paredes laterales (1') del cilindro (a). El simple agregado de algunos de los medios utilizados por la presente invención no resuelve los problemas ya mencionados. [Tal como se puede apreciar en la figura 5]In the state of the art that could considered closer, the wedges (17) for relief (5) are they have on the side walls (1 ') of the cylinder (a). The simple aggregate of some of the means used herein The invention does not solve the problems already mentioned. [As it you can see in figure 5]

La preparación previa del papel (3) mediante su tratamiento con cilindros acuñadores (18) y cuños (17') de bajorrelieve y relieve (5) permite acondicionar dicho papel (3) para su disposición en el presente dispositivo. En efecto, una vez que el papel (3) ha sido pasado entre el cilindro acuñador (18) y los cuños (17'), queda conformado un relieve (5) con sus correspondientes crestas (5') en la cara de reverso (3'') del papel (3). [Ver figura 6B]Previous paper preparation (3) by treatment with coining cylinders (18) and wedges (17 ') of bas-relief and relief (5) allows to condition said paper (3) to its arrangement in this device. Indeed, once the paper (3) has been passed between the coining cylinder (18) and the wedges (17 '), a relief (5) with its corresponding is formed crests (5 ') on the reverse side (3' ') of the paper (3). [See Figure 6B]

En estas condiciones el papel (3) se dispone sobre las paredes laterales (1') del cilindro (a) de manera que su cara de reverso (3'') apoye contra dichas paredes laterales (1') y su cara de anverso (3') quede expuesta para ser tratada. Los extremos (4) del papel (3) se fijan al cilindro (a), a través de los medios de anclaje posicional (6) con que cuenta este último (a).Under these conditions the paper (3) is arranged on the side walls (1 ') of the cylinder (a) so that its reverse side (3 '') rest against said side walls (1 ') and its obverse face (3 ') is exposed to be treated. The paper ends (4) (3) are fixed to the cylinder (a), through the positional anchoring means (6) available to the latter.

Al girar el cilindro soporte (a), los cepillos (7) que componen los medios presionadores de anticorrimiento (c) fijan posicionalmente al papel (3) ya que los manojos filiformes (7') presionan hasta lograr un íntimo contacto entre las citadas paredes laterales (1') del cilindro (a) y la cara de reverso (3'') del papel (3), impidiendo el corrimiento del mismo.By rotating the support cylinder (a), the brushes (7) that make up the anti-corrosion pressing means (c) positionally fix the paper (3) since the filiform bundles (7 ') press until intimate contact between those mentioned side walls (1 ') of the cylinder (a) and the reverse side (3' ') of the paper (3), preventing it from shifting.

Ya en las cercanías de la zona de contacto entre la rueda abrasiva (b) y el cilindro (a), los medios ajustadores (d) impiden cualquier desajuste del papel (3) en la zona crítica de abrasión. En el caso de los picos sopladores (9), el aire comprimido eyectado ajusta el papel (3) contra el cilindro (a), mientras que la presencia de la boca de aspiración (11) permite despejar de impurezas de distinto origen [incluidas las provenientes de la abrasión] a la zona de contacto. [Ver figura 1]Already in the vicinity of the contact area between the abrasive wheel (b) and the cylinder (a), the adjusting means (d) prevent any mismatch of paper (3) in the critical area of abrasion. In the case of blower peaks (9), compressed air ejected adjusts the paper (3) against the cylinder (a), while the presence of the suction mouth (11) allows clearing of impurities of different origin [including those from the abrasion] to the contact area. [See figure 1]

El mismo efecto de ajuste se logra en la forma de realización en la que los medios ajustadores (d) comprenden una cámara neumática (12) con microperforaciones (12') que atraviesan las paredes laterales (1') del cilindro (a). En este caso la acción de la bomba de vacío (14) a través de las citadas cámaras (12) y microperforaciones (12') mantiene al papel ajustado contra las paredes laterales (1') del cilindro de soporte (a). [Ver figura 3]The same adjustment effect is achieved in the form of embodiment in which the adjusting means (d) comprise a pneumatic chamber (12) with microperforations (12 ') that pass through the side walls (1 ') of the cylinder (a). In this case the action of the vacuum pump (14) through said chambers (12) and microperforations (12 ') keeps the paper adjusted against the side walls (1 ') of the support cylinder (a). [See Figure 3]

Como la distancia que separa a la rueda abrasiva (b) del cilindro soporte (a) es menor que la altura de las crestas (5') del relieve (5), cuando este último (5) entra en la zona de contacto, la periferia abrasiva (2') de la rueda (b) efectúa la abrasión de los extremos de dichas crestas (5') con lo que resulta producida la marca de agua. [Ver figura 6C]As the distance that separates the abrasive wheel (b) of the support cylinder (a) is less than the height of the ridges (5 ') of the relief (5), when the latter (5) enters the area of contact, the abrasive periphery (2 ') of the wheel (b) performs the abrasion of the ends of said ridges (5 ') resulting in produced the watermark. [See figure 6C]

Es indudable que al ser el presente invento llevado a la práctica, podrán ser introducidas modificaciones en lo que a ciertos detalles de construcción y forma se refiere, sin que ello implique apartarse de los principios fundamentales que se substancian claramente en las cláusulas reivindicatorias que siguen a continuación:Undoubtedly, being the present invention implemented, modifications may be made in which refers to certain details of construction and form, without this implies departing from the fundamental principles that are clearly substantiated in the following clauses then:

Claims

1. Device to obtain security seals of the type designed to form watermarks on the reliefs of the paper (5) and bas-reliefs by reducing their thickness by partial abrasion of said relief (5) or bas-relief, comprising a paper support cylinder (a), driving means of the angle of the support cylinder, an abrasive periphery wheel (b) connected to rotating and arranged driving means adjacent to the support cylinder (a), from which it is separated by a distance less than the height of the relief peaks (5 ')

characterized in that:

said device is applicable to paper or other sheet elements on which the reliefs were already stamped (5);

the paper (3) on which the reliefs (5) is applied to the side wall of the cylinder through end position fixing means (6) correctly arranged on the cylinder so that the back of the paper (3 '') rests on said side walls and the obverse (3 ') is exposed for treatment;

said device comprises adjustment means of paper (d) on the surface of the side walls of the cylinder of support, included in a pneumatic circuit and arranged at less adjacent to the area between the support cylinder (a) and the abrasive wheel (b);

said device comprises pressure means of non-slip paper (c) projected against the walls side of the cylinder.

2. Device for obtaining security seals according to claim 1, characterized in that:

a) the abrasive periphery wheel (b) is connected with uniform circular conduction means;

b) includes pressure brushes (7) non-slip paper, whose filiform beams (7 ') are projected on the side walls of the cylinder.

Device for obtaining security seals according to claims 1 and 2, characterized in that the paper adjustment means (d) applied on the surface of the side walls of the cylinder consist of a pneumatic circuit, comprising:

a pneumatic vacuum chamber (12) formed in the own body (1) of the support cylinder, taking its input from suction form of a nozzle connected to a pneumatic network (13), the suction outlet being composed of a plurality of small holes (12 ') that pierce the walls side of the cylinder and distributed across the surface useful peripheral of the cylinder, and

a vacuum pump (14), whose suction mouth is connects to said suction inlet corresponding to the chamber of the support cylinder

Device for obtaining security seals according to claim 1, characterized in that the paper adjusting means (d) applied on the surface of the side walls of the cylinder consist of a pneumatic circuit, comprising:

a motor compressor (8) which, together with the medium compressed air container, is provided with a nozzle feed that forms a fluid pressure outlet; Y

at least one ventilation nozzle (9) connected to said motor compressor output (8) and provided with a ejection mouth facing the paper, directed towards the proximity of the contact area between said paper and said abrasive wheel.

Device for obtaining security seals according to claim 1, characterized in that the means (d) for adjusting the paper on the surface of the side walls of the cylinder consist of a pneumatic circuit, comprising:

a motor compressor (8) that, in addition to the compressed air containers, ends in a nozzle feed that forms a fluid pressure outlet; Y

at least one ventilation nozzle (9) connected to said motor compressor outlet, provided with a mouth arranged in the vicinity of the contact area between said paper and said abrasive wheel and facing one of said sides of the paper to project air in discharges on it.

a motor compressor (8) that, in addition to the compressed air containers, ends in a nozzle feeding forming a fluid pressure outlet;

at least one ventilation nozzle (9) connected to said motor compressor outlet, its ejection mouth in front of that paper;

a suction pump (10) provided with a connection nozzle that forms an inlet for said air sucked

at least one suction mouth (11) adjacent to the vent nozzle (9) which, connected to said nozzle of Suction pump connection, is oriented towards proximity of said contact zone between said paper and said wheel of abrasive periphery; Y

complementary adjustment brushes (9 ') arranged next to said ventilation nozzle (9) and the suction mouth (11).

Device for obtaining security seals according to claim 1, characterized in that the paper adjustment means comprise variable adjustment brushes (9 ') applied against the side walls of the cylinder, said means being provided with a pneumatic adjustment mechanism.

Device for obtaining security seals according to claim 1, characterized in that the paper adjustment means comprise variable adjustment cylinders applied on the side walls of the cylinder, said means being provided with a pneumatic adjustment mechanism.

Device for obtaining security seals according to claim 1, characterized in that the non-slip paper pressure means (c) are brushes, whose filiform beams (7 ') are projected onto the side walls of the cylinder and are located at least adjacent to the paper setting means (d).

10. Device for obtaining security seals according to claim 1, characterized in that the non-slip paper pressure means (c) are brushes, whose filiform beams (7 ') are projected onto the side walls of the cylinder and distributed in front of the periphery Total support cylinder (a).

11. Device for obtaining security seals according to claim 1, characterized in that the non-slip paper pressure means (c) are rollers, whose peripheries rotate on the periphery of the paper support cylinder (a).

12. Device for obtaining security seals according to claim 1, characterized in that the abrasive periphery wheel (b) is an abrasive stone.

13. Device for obtaining security seals according to claim 1, characterized in that the abrasive surface wheel (b) is a drum, whose cylindrical periphery (2 ') facing the side walls of the support cylinder is provided with replaceable sandpaper (2 '') covering said periphery.

14. Device for obtaining security seals according to claim 1, characterized in that the support cylinder (a) is rotatably driven in a sequential manner involving angular fractions delimited by stations corresponding to the area of coincidence of the abrasive surface and the paper relief.