ES2932769T3 - Apparatus for joining two or more layers of tissue paper to produce sandwiched articles, especially facial tissues - Google Patents

Apparatus for joining two or more layers of tissue paper to produce sandwiched articles, especially facial tissues Download PDF

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Publication number
ES2932769T3
ES2932769T3 ES16001674T ES16001674T ES2932769T3 ES 2932769 T3 ES2932769 T3 ES 2932769T3 ES 16001674 T ES16001674 T ES 16001674T ES 16001674 T ES16001674 T ES 16001674T ES 2932769 T3 ES2932769 T3 ES 2932769T3
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Prior art keywords
support
layers
wheel
embossing
roller
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Spanish (es)
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Sauro Tronchetti
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Industrie Cartarie Tronchetti SpA
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Industrie Cartarie Tronchetti SpA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/02—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating
    • B31F5/022—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating using a rotary tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0733—Pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0753—Roller supporting, positioning, driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B31F2201/0764—Multi-layered the layers being nested
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0771—Other aspects of the embossing operations
    • B31F2201/0776—Exchanging embossing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0782—Layout of the complete embossing machine, of the embossing line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0789—Joining plies without adhesive

Abstract

An apparatus for joining two or more plies of tissue paper for producing interleaved items, particularly facial tissues, characterized in that it includes a contrast roller arranged transversely with respect to the advancement direction of at least two plies of tissue paper, and a plurality of embossing wheel units acting on the plies of tissue paper in contrast with the contrast roller; each embossing wheel unit includes a wheel hinged in a support, which is associated with a fixed member of the apparatus; each wheel is removable from the support without removing the support from the fixed member and includes protrusions that form a decorative pattern and are adapted to deform the plies of tissue paper in contrast with the contrast roller, joining the plies and forming a decoration thereon. The decorative pattern and joining lines thus formed produce a series of rows of tissues in the advancement direction of the tissue paper plies. (Traducción automática con Google Translate, sin valor legal)An apparatus for joining two or more plies of tissue paper for producing interleaved items, particularly facial tissues, characterized in that it includes a contrast roller arranged transversely with respect to the advancement direction of at least two plies of tissue paper, and a plurality of embossing wheel units acting on the plies of tissue paper in contrast with the contrast roller; each embossing wheel unit includes a wheel hinged in a support, which is associated with a fixed member of the apparatus; Each wheel is removable from the support without removing the support from the fixed member and includes protrusions that form a decorative pattern and are adapted to deform the plies of tissue paper in contrast with the contrast roller, joining the plies and forming a decoration thereon. The decorative pattern and joining lines thus formed produce a series of rows of tissues in the advancement direction of the tissue paper plies. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPCIÓNDESCRIPTION

Aparatos para unir dos o más capas de papel tejido, para producir artículos intercalados, especialmente pañuelos facialesApparatus for joining two or more layers of tissue paper to produce sandwiched articles, especially facial tissues

La presente invención se refiere a un aparato para unir dos o más capas de papel tejido, para producir artículos intercalados, particularmente pañuelos faciales.The present invention relates to an apparatus for joining two or more layers of woven paper to produce sandwich articles, particularly facial tissues.

Como es sabido, los pañuelos de papel del tipo conocido comercialmente como pañuelos o pañuelos faciales están constituidos generalmente por dos o más capas, normalmente dos, tres o cuatro capas.As is known, tissue papers of the type known commercially as handkerchiefs or facial tissues are generally made up of two or more plies, typically two, three or four plies.

Las capas que componen el tejido se unen generalmente pasando las capas entre un rodillo de contraste de acero liso y un juego de ruedas moleteadas, conocidas como herramientas de moleteado, que se presionan contra el papel y el rodillo liso para unir las fibras de las capas de papel. Como consecuencia de este tratamiento, las capas se unen como si estuvieran pegadas. El punto de unión de las capas es claramente visible como una línea en relieve en los dos lados del tejido y aparece como un moleteado del papel que es tan largo como el tejido y tiene una anchura de 1 a 10 mm.The plies that make up the fabric are generally joined by passing the plies between a smooth steel contrast roller and a set of knurled wheels, known as knurling tools, which are pressed against the paper and the smooth roller to bond the fibers of the plies. of paper. As a consequence of this treatment, the layers are joined as if they were glued. The junction of the layers is clearly visible as a raised line on both sides of the fabric and appears as a knurling of the paper that is as long as the fabric and has a width of 1 to 10 mm.

Tal moleteado en el papel tiene una función necesaria de unir las capas, pero no es estéticamente atractivo, por lo que varios fabricantes han unido las capas con patrones decorativos.Such knurling on the paper has a necessary function of joining the plies, but is not aesthetically appealing, so various manufacturers have joined the plies with decorative patterns.

Los patrones decorativos de los productos del tipo conocido se proporcionan por medio de un par de rodillos de acero del tipo macho-hembra o rodillos de punto a punto. Este sistema de unión de capas es más costoso que el sistema con rodillo de contraste y herramientas de moleteado, ya que los rodillos de acero sobre acero o los rodillos punto a punto requieren precisión en su rayado y diámetros adecuados para reducir la flexión que comprometería la unión de las capas. Incluso en el sistema de rodillos, la unión se produce de hecho debido a la presión que los dos rodillos ranurados ejercen sobre el papel.The decorative patterns of the products of the known type are provided by means of a pair of steel rollers of the male-female type or point-to-point rollers. This ply bonding system is more expensive than the system with contrast roll and knurling tools, as steel-on-steel or point-to-point rolls require precision scoring and proper diameters to reduce flexing that would compromise the union of the layers. Even in the roller system, the bonding actually occurs due to the pressure that the two grooved rollers exert on the paper.

Otro inconveniente del sistema de unión de rodillos lo constituye el hecho de que para cambiar el patrón decorativo es necesario sustituir los rodillos, con los consiguientes prolongados tiempos de utillaje.Another drawback of the roller joining system is the fact that to change the decorative pattern it is necessary to replace the rollers, with the consequent long tooling times.

El documento US5433817 divulga un dispositivo de unión de capas para máquinas de conversión de papel que comprende un soporte en el que pivota una unidad móvil. La unidad móvil está provista de una rueda de presión que coopera con un contrarrodillo y un medio de presión que fuerza la rueda contra el contrarrodillo. La rueda se apoya de forma resiliente en la unidad móvil y, durante el funcionamiento, la posición de la unidad se define mediante un pilar en el soporte. La unidad móvil está soportada de forma pivotante en una placa que tiene un asa. Una pluralidad de placas espaciadas están montadas en una viga. Cada rueda de presión se puede retirar de la unidad móvil. El dispositivo de unión de capas incluye además un cepillo que mantiene limpia la superficie de la ruedaDocument US5433817 discloses a ply joining device for paper converting machines comprising a support on which a mobile unit pivots. The mobile unit is provided with a pressure wheel that cooperates with a counter roller and a pressure means that forces the wheel against the counter roller. The wheel is resiliently supported on the mobile unit and, during operation, the position of the unit is defined by a pillar on the mount. The mobile unit is pivotally supported on a plate having a handle. A plurality of spaced plates are mounted on a beam. Each pressure wheel can be removed from the mobile unit. The ply bonding device also includes a brush that keeps the wheel surface clean

El documento EP1533112 divulga un aparato para fabricar productos de papel de múltiples capas mediante moleteado, que tiene una unidad de rueda de moleteado constituida por una o más ruedas de moleteado, cada una de las cuales coopera con un rodillo de contraste para decorar por medio de moleteado una capa de papel y con el fin de decorar y unir al menos dos capas de papel. Cada rueda de moleteado está provista de patrones en relieve dispuestos de manera que, a pesar de parecer separados, permiten el moleteado. Las ruedas de moleteado pueden estar soportadas por un solo eje de soporte o individualmente por un soporte para cada rueda de moleteado. Cada rueda de moleteado puede ser retirada de su soporte solo después de que el soporte sea retirado de la viga de soporte.EP1533112 discloses an apparatus for making multi-ply paper products by knurling, having a knurling wheel unit made up of one or more knurling wheels, each of which cooperates with a contrasting roller to decorate by means of knurling. knurling a layer of paper and in order to decorate and join at least two layers of paper. Each knurling wheel is provided with raised patterns arranged in such a way that, despite appearing separate, they allow for knurling. The knurling wheels may be supported by a single support shaft or individually by a support for each knurling wheel. Each knurling wheel can be removed from its holder only after the holder is removed from the support beam.

El documento US2002/0148578 divulga un dispositivo para aplicar un gofrado a una banda de papel tejido que comprende un rodillo de yunque de ancho completo y una pluralidad de rodillos de gofrado de ancho pequeño que se mueven rotacionalmente alrededor de ejes de rotación que corren paralelos al eje de rotación del rodillo de yunque. Los rodillos de gofrado se pueden colocar individualmente contra el rodillo de yunque. Tres rodillos de gofrado están montados en una unidad que comprende un soporte, que sirve para montar la unidad en una viga del marco de la máquina, y un elemento del marco que está unido de manera pivotante al soporte a través de un pasador pivotante y sujeta el eje del rodillo de gofrado. Los rodillos de gofrado individuales se pueden sustituir retirando y desmontando la unidad completa.Document US2002/0148578 discloses a device for applying an embossing to a web of woven paper comprising a full-width anvil roll and a plurality of small-width embossing rolls that rotate rotationally about axes of rotation running parallel to the axis of rotation of the anvil roll. The embossing rolls can be positioned individually against the anvil roll. Three embossing rollers are mounted on a unit comprising a bracket, which serves to mount the unit on a frame beam of the machine, and a frame element which is pivotally attached to the bracket via a pivot pin and holds the axis of the embossing roller. Individual embossing rollers can be replaced by removing and disassembling the complete unit.

El objetivo de la presente invención es proporcionar un aparato para unir dos o más capas de papel que supere los inconvenientes de la técnica anterior citadaThe object of the present invention is to provide an apparatus for joining two or more layers of paper that overcomes the drawbacks of the cited prior art.

Dentro del alcance de este objetivo, un objeto de la invención es proporcionar un aparato que permita modificar el patrón decorativo producido durante la unión de las capas más rápida y fácilmente que los sistemas tradicionales. Within the scope of this objective, an object of the invention is to provide an apparatus that allows to modify the decorative pattern produced during the joining of the layers more quickly and easily than traditional systems.

Otro objeto de la invención es proporcionar un aparato que sea más económico que los aparatos de la técnica anterior. Another object of the invention is to provide an apparatus that is cheaper than prior art apparatus.

Otro objeto de la presente invención es proporcionar un aparato que, en virtud de sus particulares características constructivas, sea capaz de dar las mayores garantías de fiabilidad y seguridad de uso. Another object of the present invention is to provide an apparatus that, by virtue of its particular construction characteristics, is capable of giving the greatest guarantees of reliability and safety of use.

Este objetivo y estos y otros objetivos que serán más evidentes a continuación se logran mediante un aparato para unir dos o más capas como se define en la reivindicación 1. Otras características ventajosas de la invención se establecen en las reivindicaciones dependientes.This object and these and other objects that will become more apparent below are achieved by an apparatus for joining two or more layers as defined in claim 1. Other advantageous features of the invention are set out in the dependent claims.

Otras características y ventajas se harán más evidentes a partir de la descripción de las realizaciones preferidas, pero no exclusivas de la invención, ilustradas a modo de ejemplo en los dibujos adjuntos, en donde:Other features and advantages will become more apparent from the description of the preferred, but not exclusive, embodiments of the invention, illustrated by way of example in the attached drawings, where:

la Figura 1 es una vista lateral esquemática de un aparato para fabricar productos de papel con múltiples capas, de acuerdo con la presente invención;Figure 1 is a schematic side view of an apparatus for making multi-ply paper products in accordance with the present invention;

la Figura 2 es una vista inferior parcialmente seccionada que muestra la región de las unidades de rueda de gofrado; la Figura 3 es una vista a escala ampliada de una porción de la Figura 2;Figure 2 is a partially sectioned bottom view showing the region of the embossing wheel units; Figure 3 is an enlarged view of a portion of Figure 2;

la Figura 4 es una vista lateral, parcialmente en líneas discontinuas, de una unidad de rueda de gofrado y su soporte; la Figura 5 es una vista en plano seccional de la unidad de rueda de gofrado de la Figura anterior;Figure 4 is a side view, partly in broken lines, of an embossing wheel unit and its support; Figure 5 is a sectional plan view of the embossing wheel unit of the previous Figure;

La Figura 6 es una vista de un ejemplo de un producto de papel fabricado de acuerdo con la presente invención. Con referencia a las figuras citadas, el aparato de acuerdo con la invención, designado globalmente por el número 1 de referencia, incluye al menos una estación 2 para unir dos o más capas de papel tejido; la estación 2 tiene un rodillo 3 de contraste y un juego de unidades 4 de ruedas de gofrado que actúan sobre el rodillo 3 de contraste.Figure 6 is a view of an example of a paper product made in accordance with the present invention. With reference to the cited figures, the apparatus according to the invention, designated globally by the reference number 1, includes at least one station 2 for joining two or more layers of woven paper; station 2 has a contrast roller 3 and a set of embossing wheel units 4 acting on the contrast roller 3.

Las unidades 4 de ruedas de gofrado están ancladas a una viga 16 de soporte, que se extiende paralela al rodillo 3 de contraste e incluye un medio neumático adaptado para empujar las unidades de ruedas de gofrado contra el rodillo 3 de contraste.The embossing wheel units 4 are anchored to a support beam 16, which extends parallel to the contrasting roller 3 and includes pneumatic means adapted to push the embossing wheel units against the contrasting roller 3.

El medio neumático está constituido por una manguera 17 inflable.The pneumatic means is constituted by an inflatable hose 17.

Cada unidad 4 de rueda de gofrado está constituida por una rueda 5 que pivota en un soporte 6 que a su vez está asociado con el marco del aparato 1.Each embossing wheel unit 4 is constituted by a wheel 5 that pivots on a support 6 which in turn is associated with the frame of the apparatus 1.

Las unidades 4 de ruedas de gofrado están montadas en la viga 16 de soporte de modo que puedan ser reemplazadas fácilmente retirando la rueda 5 del soporte 6 o desmontando el propio soporte.The embossing wheel units 4 are mounted on the support beam 16 so that they can be easily replaced by removing the wheel 5 from the support 6 or by disassembling the support itself.

En el caso concreto, se muestra un soporte 6 que está constituido por un soporte 7 que pivota en un bloque 8 por medio de un pivote 9.In the specific case, a support 6 is shown that is constituted by a support 7 that pivots in a block 8 by means of a pivot 9.

El soporte 6 incluye un par de tornillos 10 y 11 de fijación.The support 6 includes a pair of fixing screws 10 and 11.

De acuerdo con la invención, cada soporte 6 está provisto de un dispositivo 12 de lubricación que está adaptado para lubricar la rueda 5. El dispositivo 12 de lubricación, que incluye un fieltro, puede inclinarse con el fin de compensar el desgaste del fieltro.According to the invention, each support 6 is provided with a lubricating device 12 which is adapted to lubricate the wheel 5. The lubricating device 12, which includes a felt, can be tilted in order to compensate for the wear of the felt.

Cada rueda 5 está provista de protuberancias que forman un patrón decorativo y están adaptadas para deformar las capas de papel tejido en contraste con el rodillo 3 de contraste.Each wheel 5 is provided with protrusions which form a decorative pattern and are adapted to deform the contrasting woven paper layers with the contrasting roller 3.

Las unidades 4 de ruedas gofradoras están ancladas a los soportes de manera que pueden ser fácilmente reemplazados desmontando las ruedas 5 o reemplazando los soportes completos con los rodillos.The embossing wheel units 4 are anchored to the supports so that they can be easily replaced by disassembling the wheels 5 or by replacing the complete supports with the rollers.

Las ruedas 5 y el rodillo 3 de contraste ventajosamente hechos de acero templado con la dureza adecuada La unión de las capas se produce por deformación del papel que pasa entre las ruedas 5 decorativas y el rodillo de contraste.The contrast wheels 5 and the contrast roller 3 are advantageously made of tempered steel with the appropriate hardness. The joining of the layers is produced by deformation of the paper that passes between the decorative wheels 5 and the contrast roller.

Las protuberancias de cada rueda forman un patrón 14 decorativo y al mismo tiempo unen las capas de papel tejido. Las líneas decorativas y de unión así formadas producen una serie de filas de pañuelos en la dirección de avance de las capas de papel tejido.The bumps on each wheel form a decorative pattern 14 and at the same time join the layers of woven paper. The decorative and joining lines thus formed produce a series of tissue rows in the direction of advancement of the woven paper layers.

A continuación, las capas de papel tejido se cortan longitudinalmente a lo largo de una línea 15 de corte que se extiende en una región central de la decoración 14.Next, the woven paper layers are cut longitudinally along a cut line 15 extending in a central region of the decoration 14.

En el ejemplo ilustrado, el número de unidades 4 de rueda de gofrado está en función de la anchura del papel 13 tejido que se está desenrollandoIn the illustrated example, the number of embossing wheel units 4 is a function of the width of the woven paper 13 being unrolled.

La anchura del tejido 13 normalmente varía de 100 a 300 mm; en el caso específico, se muestra un tejido 13 que tiene una anchura de 210 mm, mientras que la anchura de la bobina es de 2780 mm, del que hay que quitar 25+25 mm de ribete, obteniendo trece filas de pañuelos de 210 mm, así que el número de unidades 4 de rueda de gofrado es de catorce, ya que cada juego une y decora dos capas adyacentes o un ribete tejido. The width of the fabric 13 normally varies from 100 to 300 mm; in the specific case, a fabric 13 is shown that has a width of 210 mm, while the width of the reel is 2780 mm, from which 25+25 mm of edging must be removed, obtaining thirteen rows of 210 mm scarves , so the number of embossing wheel units 4 is fourteen, as each set joins and decorates two adjacent layers or a woven edging.

El aparato de acuerdo con la presente invención permite proporcionar productos de varios tipos.The apparatus according to the present invention allows to provide products of various types.

La Figura 6 es una vista de un producto obtenido mediante el aparato de acuerdo con la presente invención, que tiene decoraciones 14 en ambos bordes.Figure 6 is a view of a product obtained by the apparatus according to the present invention, having decorations 14 on both edges.

En la práctica se ha encontrado que la invención logra el fin y los objetos previstos, proporcionando un aparato que permite unir dos o más capas de papel tejido por medio de una serie de unidades de ruedas de gofrado decorativo, que actúan sobre un rodillo de contraste, que pueden ser reemplazadas de forma rápida y fácilmente para cambiar el patrón de gofrado por ellos.In practice it has been found that the invention achieves the intended purpose and objects by providing an apparatus that enables two or more layers of woven paper to be joined by means of a series of decorative embossing wheel units, which act on a contrast roller. , which can be replaced quickly and easily to change the embossing pattern for them.

De hecho, cada unidad de rueda de gofrado puede retirarse del respectivo soporte y reemplazarse fácilmente, sin que sea necesario desmontar también el soporte del marcoIn fact, each embossing wheel unit can be easily removed from the respective support and replaced, without it being necessary to also disassemble the support from the frame.

El presente aparato permite evitar los largos tiempos de utillaje necesarios para cambiar la decoración de los bordes cuando se utilizan sistemas tradicionales de unión mediante rodillos acero sobre acero.The present apparatus makes it possible to avoid the long tooling times necessary to change the decoration of the edges when using traditional steel-on-steel roller joining systems.

Otra ventaja importante de la presente invención es el coste reducido de las unidades de rueda de gofrado decorativo con respecto a los rodillos de acero sobre acero de los sistemas tradicionales. Another important advantage of the present invention is the reduced cost of embossing wheel units relative to the steel-on-steel rollers of traditional systems.

Claims (7)

REIVINDICACIONES 1. Un aparato para unir dos o más capas de papel tejido para producir artículos intercalados, especialmente pañuelos faciales, que comprende un rodillo (3) de contraste, dispuesto transversalmente con respecto a la dirección de avance de al menos dos capas de papel (13) tejido, y una pluralidad de unidades (4) de ruedas de gofrado que actúan sobre dichas capas de papel (13) tejido en contraste con dicho rodillo (3) de contraste; cada una de las unidades de rueda (4) de gofrado que comprende una rueda (5) articulada en un soporte (6); el soporte (6) está asociado con un miembro fijo de dicho aparato; cada rueda (5) incluye protuberancias que forman un patrón decorativo y están adaptadas para deformar dichas capas de papel (13) tejido en contraste con dicho rodillo (3) de contraste, uniendo dichas capas y formando una decoración sobre dichas capas; en donde cada rueda (5) está asociada con dicho soporte (6) mediante dos tornillos que se extienden a lo largo del eje de la rueda (5), siendo cada rueda (5) removible de dicho soporte (6) sin necesidad de extraer dicho soporte (6) de dicho miembro fijo, comprendiendo dicho soporte (6) un soporte (7) que pivota en un bloque (8) por medio de un pivote (9); dicho soporte (6) comprende miembros de fijación a dicho miembro fijo, en donde cada soporte (6) comprende un dispositivo (12) de lubricación que incluye un fieltro, estando adaptado dicho dispositivo (12) de lubricación para lubricar dicha rueda (5), siendo dicho dispositivo (12) de lubricación basculante para compensar el desgaste de dicho dispositivo (12) de lubricación.An apparatus for joining two or more layers of woven paper to produce sandwiched articles, especially facial tissues, comprising a contrast roller (3), arranged transversely to the direction of advance of at least two layers of paper (13). ) woven, and a plurality of embossing wheel units (4) acting on said contrasting woven paper layers (13) with said contrasting roller (3); each of the embossing wheel units (4) comprising a wheel (5) articulated on a support (6); the support (6) is associated with a fixed member of said apparatus; each wheel (5) includes protrusions that form a decorative pattern and are adapted to deform said layers of contrasting woven paper (13) with said contrast roller (3), bonding said layers and forming a decoration on said layers; wherein each wheel (5) is associated with said support (6) by means of two screws that extend along the axis of the wheel (5), each wheel (5) being removable from said support (6) without the need to extract said support (6) of said fixed member, said support (6) comprising a support (7) that pivots on a block (8) by means of a pivot (9); said support (6) comprises fixing members to said fixed member, wherein each support (6) comprises a lubrication device (12) including a felt, said lubrication device (12) being adapted to lubricate said wheel (5) said lubricating device (12) being tiltable to compensate for the wear of said lubricating device (12). 2. El aparato de acuerdo con la reivindicación 1, en donde dicho soporte (6) es removible de dicho miembro fijo. The apparatus according to claim 1, wherein said support (6) is removable from said fixed member. 3. El aparato de acuerdo con las reivindicaciones 1 o 2, en donde dicho miembro fijo, al que se anclan dichas unidades (4) de ruedas de gofrado, está constituido por una viga (16) de soporte que se encuentra paralela a dicho rodillo (3) de contraste.The apparatus according to claims 1 or 2, wherein said fixed member, to which said embossing wheel units (4) are anchored, is constituted by a support beam (16) running parallel to said roller. (3) contrast. 4. El aparato de acuerdo con la reivindicación 3, en donde dicha viga (16) de soporte comprende un medio (17) neumático adaptado para empujar dichas unidades (3) de rueda de gofrado sobre dicho rodillo (3) de contraste. The apparatus according to claim 3, wherein said support beam (16) comprises pneumatic means (17) adapted to push said embossing wheel units (3) onto said contrast roller (3). 5. El aparato de acuerdo con la reivindicación 4, en donde dicho medio (17) neumático está constituido por una manguera inflable.The apparatus according to claim 4, wherein said pneumatic means (17) is constituted by an inflatable hose. 6. El aparato de acuerdo con una o más de las reivindicaciones anteriores, en donde comprende al menos dos unidades (4) de ruedas de gofrado que están adaptadas para unir dichas capas a lo largo de dos líneas de patrón decorativas, formando al menos una fila de capas.The apparatus according to one or more of the preceding claims, wherein it comprises at least two embossing wheel units (4) which are adapted to join said layers along two decorative pattern lines, forming at least one layer row. 7. El aparato de acuerdo con una o más de las reivindicaciones 1 a 5 anteriores, en donde comprende al menos tres unidades (4) de ruedas de gofrado adaptadas para unir dichas capas a lo largo de tres líneas de patrón decorativas, formando al menos dos filas de capas. The apparatus according to one or more of the preceding claims 1 to 5, wherein it comprises at least three units (4) of embossing wheels adapted to join said layers along three decorative pattern lines, forming at least two rows of layers.
ES16001674T 2015-08-03 2016-07-29 Apparatus for joining two or more layers of tissue paper to produce sandwiched articles, especially facial tissues Active ES2932769T3 (en)

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ITUB2015A002765A ITUB20152765A1 (en) 2015-08-03 2015-08-03 EQUIPMENT FOR THE UNION OF TWO OR MORE PAPER SAILS, FOR THE PRODUCTION OF INTERFOGLED PRODUCTS, PARTICULARLY FACIAL TISSUE

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CN111278615B (en) * 2017-10-24 2023-02-03 3M创新有限公司 Method and apparatus for generating fiducials via die cutting

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US5433817A (en) * 1993-09-30 1995-07-18 Fabio Perini S.P.A. Ply-bonding device for bonding plies of paper webs and like material
US20020148578A1 (en) * 2001-03-30 2002-10-17 Ian Reilly Device for applying an embossing to a web of tissue paper and method thereof
ITMI20032279A1 (en) * 2003-11-24 2005-05-25 Ind Cartarie Tronchetti Spa EQUIPMENT FOR THE MANUFACTURE OF PAPER PRODUCTS AS FAR MORE THAN GODRONATURE

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