WO2023242460A1 - Extrusion mould with a variable cross section - Google Patents
Extrusion mould with a variable cross section Download PDFInfo
- Publication number
- WO2023242460A1 WO2023242460A1 PCT/ES2023/070392 ES2023070392W WO2023242460A1 WO 2023242460 A1 WO2023242460 A1 WO 2023242460A1 ES 2023070392 W ES2023070392 W ES 2023070392W WO 2023242460 A1 WO2023242460 A1 WO 2023242460A1
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- blades
- mold
- extrusion
- variable section
- pair
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
Definitions
- the present invention refers to a mold that serves as an extrusion mouth through which the extrusion section can be vented in the two dimensions perpendicular to the extrusion direction.
- Extrusion molding consists of a mechanical process in which a material located in a tempered channel where the material is melted is subjected to pressure to force its exit through a mold with a specific opening and thus obtain a product in bar shape with the section determined by the mold opening.
- the mold consists of a piece of metal with an opening made in it that determines the shape of the section of the product to be obtained.
- these systems produce bars of constant section, which may or may not be hollow.
- a insert located in the opening is incorporated into the mold, so that the material flows around this insert, creating the cavity in the extruded bar.
- variable section extrusion molds although to date they are only used to make non-tubular shapes, that is, solid bars, not hollow ones.
- These systems incorporate two moving blades facing each other that, due to their movement, can vary the width of the resulting bar section.
- the extrusion section is determined by the shape of the opening made in the mold and by a insert, if it incorporates one, to generate a hole in the bar that results from the extrusion.
- extrusion molds in which the dimensions can be measured in the two directions perpendicular to the extrusion direction are not known in the state of the art.
- the present invention solves these limitations, which are not known to be resolved in the present state of the art, by means of a variable section extrusion mold with two pairs of mobile blades through which this objective can be achieved.
- the present invention describes an extrusion mold with a variable section that comprises a pair of first blades aligned and with the edges facing each other with sliding capacity to be able to determine the dimension of the opening. .
- the mold also comprises a pair of second blades aligned and with edges facing each other with sliding capacity to be able to change the dimension of the opening in a second direction.
- Each pair of blades is activated by an actuator.
- each blade is preferably attached to a skate that is housed in a rail fixed to the mold, along which it has the ability to slide.
- the mold may also comprise a pair of projections for the sliding of the second blades.
- each blade is attached to the actuator by means of a connecting rod-crank mechanism through which the sliding movement is transmitted and thus the mold opening can be made larger or smaller.
- one of the first blades is immobilized during the extrusion process and can only be moved when the mold is not operating by means of an adjustment screw.
- This blade is normally the one that is located horizontally in the lower area, where it supports the bar as it is being extruded.
- the present invention consists of the mechanical solution necessary to achieve extrusion with variable section on more than two sides of a resulting part.
- the present invention allows obtaining a variable extrusion section during the extrusion process on more than two sides. This is achieved thanks to the overlapping arrangement of the extrusion blades.
- the object of the invention is based on the arrangement of the two pairs of blades, where the first pair of blades is superimposed on the second pair of blades. In this way, both pairs of blades can move in both directions without colliding with each other and thus be able to vary the extrusion section.
- FIG. 1 represents a perspective view of the mold of the invention showing the extrusion opening and the sliding channels of the blades.
- FIG. 2 represents a perspective view of the mold of Figure 1 with the two pairs of blades installed.
- FIG. 3 represents a perspective view of a blade attached to an actuator by means of a connecting rod-crank mechanism where the way the blade moves can be seen.
- FIGS. 4 and 5 represent perspective views of the mold of the invention in which only three of the four blades are attached to an actuator by means of a connecting rod-crank mechanism.
- FIG. 6 represents a perspective view of a ceramic piece obtained from a mold according to the invention.
- FIG. 7 represents a plan view of a blade with the cutting edge substantially “M” shaped.
- FIG. 8 represents a perspective view of a ceramic piece obtained from the mold of the invention with a blade with the cutting edge according to Figure 7.
- Figures 9 represent a perspective view of another embodiment of a ceramic piece obtained from the mold of the invention with a blade with the cutting edge according to Figure 7.
- Figure 1 represents the mold of the invention, where you can see the opening (3) for the exit of the material and a retainer (11) intended for fixing an insert for the production of hollow parts.
- Figure 2 shows the mold of the invention with two pairs of blades (1, 2) arranged in directions perpendicular to each other.
- Each pair of blades (1, 2) is arranged in alignment, with the edges (9) facing each other, the blades (1, 2) of each pair being able to move in both directions of movement in the direction in which they are installed. that the edges (9) move closer or further away, modifying the size of the opening (3) of the mold according to needs.
- the first blades (1) are housed in a sliding rail (10), while the second blades (2) are located on projections (12).
- the blades (1, 2) do not interfere with each other in the movement and, on the other hand, the projections (12) have the function of the second blades (2) maintaining a separation with the mold so they can be greased.
- Figure 3 represents the way the blades move (1, 2).
- the mold incorporates a recess (6) for housing a rail (5) along which a skate (4) fixed to the blade (1, 2) slides.
- the blade (1, 2) is attached to a connecting rod-crank mechanism (7) that is set in motion through an actuator (8).
- the distance between the edges (9) of the blades (1, 2) of each pair is variable, making it possible to program the movement of the blades (1, 2) during extrusion and thus obtain a bar of sections very hazy
- the actuators (8) of the blades (1, 2) of each pair are synchronized, so that the separation between the blades (1, 2) is symmetrical.
- one of the blades (1, 2) which corresponds to the lower side of the opening (3), on which it rests on the piece during the cutting process. extrusion, remains fixed, without being attached to any actuator (8).
- the aforementioned blade (1, 2) can be moved manually by acting on a screw adjustment (13) that fixes it to the mold, although with the limitation of having to do it with the machine stopped.
- both pairs of blades (1, 2) can move in both directions without colliding with each other and thus be able to vary the extrusion section.
- the mold To locate the blades (1, 2), the mold has a sliding rail (10) to drive the pair of first blades (1), the one located most in contact with the mold. Furthermore, in order to create a separation between the second blades (2) and the mold, so that they can be greased, the mold also incorporates projections (12) on which the second blades (2) slide.
- FIG 7 you can see an alternative embodiment of a blade (1, 2) with a cutting edge (9) provided with a non-rectilinear portion (90), in this case substantially "M" shaped, such that Ceramic pieces can be obtained with a surface (102) (upper according to the spatial position of the drawings) with a sinuous shape, such as those represented in Figures 8 and 9. In this way, a piece with a very characteristic appearance and original. Likewise, multiple configurations can be obtained (figures 8 and 9) without having to modify the shape of an extruder nozzle unlike what happens in conventional extruders, thus reducing maintenance and component replacement times.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
DESCRIPCIÓN DESCRIPTION
MOLDE DE EXTRUSIÓN DE SECCIÓN VARIABLE VARIABLE SECTION EXTRUSION MOLD
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención se refiere a un molde que sirve de boca de extrusión mediante el que se puede vahar la sección de extrusión en las dos dimensiones perpendiculares a la dirección de extrusión. The present invention refers to a mold that serves as an extrusion mouth through which the extrusion section can be vented in the two dimensions perpendicular to the extrusion direction.
Encuentra especial aplicación en el ámbito de la industria relacionada con el moldeo por extrusión. It finds special application in the field of industry related to extrusion molding.
ANTECEDENTES DE LA INVENCIÓN Y PROBLEMA TÉCNICO A RESOLVER BACKGROUND OF THE INVENTION AND TECHNICAL PROBLEM TO BE SOLVED
En el estado de la técnica son conocidos sobradamente los sistemas de moldeo por extrusión para la fabricación de piezas. In the state of the art, extrusion molding systems for the manufacture of parts are well known.
El moldeo por extrusión consiste en un proceso mecánico en donde un material ubicado en un canal atemperado donde se consigue llevar el material a fusión, es sometido a presión para forzar su salida a través de un molde con una abertura determinada y así obtener un producto en forma de barra con la sección determinada por la abertura del molde. Extrusion molding consists of a mechanical process in which a material located in a tempered channel where the material is melted is subjected to pressure to force its exit through a mold with a specific opening and thus obtain a product in bar shape with the section determined by the mold opening.
Uno de los campos de aplicación más extendidos en el moldeo por extrusión está enfocado en el uso con barro. One of the most widespread fields of application in extrusion molding is focused on use with clay.
Morfológicamente, según se ha indicado, el molde consta de una pieza de metal con una abertura practicada en él que determina la forma de la sección del producto que se quiere obtener. Morphologically, as indicated, the mold consists of a piece of metal with an opening made in it that determines the shape of the section of the product to be obtained.
Habitualmente, estos sistemas producen barras de sección constante, que pueden ser huecas o no. En caso de las barras huecas, al molde se le incorpora un postizo ubicado en la abertura, de forma que el material fluya alrededor de este postizo, creándose la oquedad en la barra extruida. Existen también moldes de extrusión de sección variable, aunque hasta la fecha únicamente se utilizan para realizar formas no tubulares, es decir, barras sólidas, no huecas. Estos sistemas incorporan dos cuchillas móviles enfrentadas entre sí que, debido a su movimiento pueden ir vahando la anchura de la sección de la barra resultante. Typically, these systems produce bars of constant section, which may or may not be hollow. In the case of hollow bars, a insert located in the opening is incorporated into the mold, so that the material flows around this insert, creating the cavity in the extruded bar. There are also variable section extrusion molds, although to date they are only used to make non-tubular shapes, that is, solid bars, not hollow ones. These systems incorporate two moving blades facing each other that, due to their movement, can vary the width of the resulting bar section.
La sección de extrusión viene determinada por la forma de la abertura practicada en el molde y por un postizo, en caso de que lo incorpore, para la generación de un hueco en la barra que resulta de la extrusión. The extrusion section is determined by the shape of the opening made in the mold and by a insert, if it incorporates one, to generate a hole in the bar that results from the extrusion.
Sin embargo, no se conocen en el estado de la técnica moldes de extrusión en los que se puedan vahar las dimensiones en las dos direcciones perpendiculares a la dirección de extrusión. However, extrusion molds in which the dimensions can be measured in the two directions perpendicular to the extrusion direction are not known in the state of the art.
La presente invención viene a solucionar estas limitaciones, que no se conoce que se encuentren resueltas en el presente estado de la técnica, mediante un molde de extrusión de sección variable con dos pares de cuchillas móviles mediante las que se puede conseguir este objetivo. The present invention solves these limitations, which are not known to be resolved in the present state of the art, by means of a variable section extrusion mold with two pairs of mobile blades through which this objective can be achieved.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
Con el fin de alcanzar los objetivos y evitar los inconvenientes mencionados anteriormente, la presente invención describe un molde de extrusión de sección variable que comprende un par de primeras cuchillas alineadas y con los filos enfrentados con capacidad de deslizamiento para poder vahar la dimensión de la abertura. In order to achieve the objectives and avoid the drawbacks mentioned above, the present invention describes an extrusion mold with a variable section that comprises a pair of first blades aligned and with the edges facing each other with sliding capacity to be able to determine the dimension of the opening. .
El molde también comprende un par de segundas cuchillas alineadas y con los filos enfrentados con capacidad de deslizamiento para poder vahar la dimensión de la abertura en una segunda dirección. Cada par de cuchillas es activada por un actuador. The mold also comprises a pair of second blades aligned and with edges facing each other with sliding capacity to be able to change the dimension of the opening in a second direction. Each pair of blades is activated by an actuator.
Para tener en cuenta el desplazamiento de las cuchillas, de forma preferente cada cuchilla está unida a un patín que se aloja en un raíl fijado al molde, por el que tiene capacidad de deslizar. To take into account the displacement of the blades, each blade is preferably attached to a skate that is housed in a rail fixed to the mold, along which it has the ability to slide.
Por otro lado, el molde también puede comprender un par de resaltes para el deslizamiento de las segundas cuchillas. Preferentemente, cada cuchilla está unida al actuador mediante un mecanismo biela- manivela mediante el que se le transmite el movimiento de deslizamiento y así poder conseguir que la abertura del molde sea mayor o menor. On the other hand, the mold may also comprise a pair of projections for the sliding of the second blades. Preferably, each blade is attached to the actuator by means of a connecting rod-crank mechanism through which the sliding movement is transmitted and thus the mold opening can be made larger or smaller.
En una forma de realización, una de las primeras cuchillas está inmovilizada durante el proceso de extrusión y únicamente puede desplazarse estando el molde sin funcionar mediante un tornillo de ajuste. Esta cuchilla normalmente es la que se ubica horizontalmente en la zona inferior, donde apoya la barra a medida que va siendo extruida. In one embodiment, one of the first blades is immobilized during the extrusion process and can only be moved when the mold is not operating by means of an adjustment screw. This blade is normally the one that is located horizontally in the lower area, where it supports the bar as it is being extruded.
De esta forma, la presente invención consiste en la solución mecánica necesaria para conseguir extrusión con sección variable en más de dos lados de una pieza resultante. In this way, the present invention consists of the mechanical solution necessary to achieve extrusion with variable section on more than two sides of a resulting part.
Hay posibilidad con esta solución de extruir barras macizas o huecas, siendo la realización preferente la extrusión de barras huecas. With this solution there is the possibility of extruding solid or hollow bars, the preferred embodiment being the extrusion of hollow bars.
Con la configuración del molde de sección variable, la presente invención permite obtener una sección de extrusión variable durante el proceso de extrusión en más de dos caras. Esto se logra gracias a la disposición superpuesta de las cuchillas de extrusión. With the configuration of the variable section mold, the present invention allows obtaining a variable extrusion section during the extrusion process on more than two sides. This is achieved thanks to the overlapping arrangement of the extrusion blades.
El objeto de la invención se basa en la disposición de los dos pares de cuchillas, donde el primer par de cuchillas está superpuesto al segundo par de cuchillas. De este modo, ambos pares de cuchillas pueden moverse en los dos sentidos sin colisionar entre ellas y así poder variar la sección de extrusión. The object of the invention is based on the arrangement of the two pairs of blades, where the first pair of blades is superimposed on the second pair of blades. In this way, both pairs of blades can move in both directions without colliding with each other and thus be able to vary the extrusion section.
BREVE DESCRIPCIÓN DE LAS FIGURAS BRIEF DESCRIPTION OF THE FIGURES
Para completar la descripción de la invención y con objeto de ayudar a una mejor comprensión de sus características, de acuerdo con un ejemplo preferente de realización de la misma, se acompaña un conjunto de dibujos en donde, con carácter ilustrativo y no limitativo, se han representado las siguientes figuras: To complete the description of the invention and in order to help a better understanding of its characteristics, in accordance with a preferred example of its embodiment, a set of drawings is attached where, with an illustrative and non-limiting nature, they have been represented the following figures:
- La figura 1 representa una vista en perspectiva del molde de la invención mostrando la abertura de extrusión y los canales de deslizamiento de las cuchillas. - Figure 1 represents a perspective view of the mold of the invention showing the extrusion opening and the sliding channels of the blades.
- La figura 2 representa una vista en perspectiva del molde de la figura 1 con los dos pares de cuchillas instalados. - La figura 3 representa una vista en perspectiva de una cuchilla unida a un actuador mediante un mecanismo biela-manivela donde se puede apreciar la forma de movimiento de la cuchilla. - Figure 2 represents a perspective view of the mold of Figure 1 with the two pairs of blades installed. - Figure 3 represents a perspective view of a blade attached to an actuator by means of a connecting rod-crank mechanism where the way the blade moves can be seen.
- Las figuras 4 y 5 representan sendas vistas en perspectiva del molde de la invención en el que solo tres de las cuatro cuchillas están unidas a un actuador mediante un mecanismo biela-manivela. - Figures 4 and 5 represent perspective views of the mold of the invention in which only three of the four blades are attached to an actuator by means of a connecting rod-crank mechanism.
- La figura 6 representa una vista en perspectiva de una pieza de cerámica obtenida a partir de un molde de acuerdo con la invención. - Figure 6 represents a perspective view of a ceramic piece obtained from a mold according to the invention.
- La figura 7 representa una vista en planta de una cuchilla con el filo de corte sensiblemente en forma de “M”. - Figure 7 represents a plan view of a blade with the cutting edge substantially “M” shaped.
- La figura 8 representa una vista en perspectiva de una pieza de cerámica obtenida a partir del molde de la invención con una cuchilla con el filo de corte según la figura 7. - Figure 8 represents a perspective view of a ceramic piece obtained from the mold of the invention with a blade with the cutting edge according to Figure 7.
- La figuras 9 representa una vista en perspectiva de otra realización de una pieza de cerámica obtenida a partir del molde de la invención con una cuchilla con el filo de corte según la figura 7. - Figures 9 represent a perspective view of another embodiment of a ceramic piece obtained from the mold of the invention with a blade with the cutting edge according to Figure 7.
A continuación, se facilita un listado de las referencias empleadas en las figuras: Below is a list of the references used in the figures:
1. Primeras cuchillas 1. First blades
2. Segundas cuchillas. 2. Second blades.
3. Abertura del molde. 3. Mold opening.
4. Patín. 4. Skate.
5. Raíl. 5. Rail.
6. Rehundido. 6. Sunken.
7. Mecanismo biela-manivela. 7. Connecting rod-crank mechanism.
8. Actuador. 8. Actuator.
9. Filo de las cuchillas. 9. Sharpness of the blades.
10. Carril de deslizamiento de las primeras cuchillas. 10. Sliding rail of the first blades.
11. Retenedor. 11. Retainer.
12. Resaltes. 12. Highlights.
13. Tornillo de ajuste. 13. Adjustment screw.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTE DE LA INVENCIÓN En la figura 1 se representa el molde de la invención, donde puede apreciarse la abertura (3) para la salida del material y un retenedor (11) destinado a la fijación de un postizo para la producción de piezas huecas. DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION Figure 1 represents the mold of the invention, where you can see the opening (3) for the exit of the material and a retainer (11) intended for fixing an insert for the production of hollow parts.
En la figura 2 se representa el molde de la invención con dos pares de cuchillas (1, 2) dispuestas en direcciones perpendiculares entre sí. Cada par de cuchillas (1 , 2) está dispuesto en alineación, con los filos (9) enfrentados entre sí, pudiendo las cuchillas (1, 2) de cada par desplazarse en ambos sentidos de movimiento en la dirección en que están instaladas de forma que los filos (9) se acerquen o se alejen, modificando el tamaño de la abertura (3) del molde según las necesidades. Figure 2 shows the mold of the invention with two pairs of blades (1, 2) arranged in directions perpendicular to each other. Each pair of blades (1, 2) is arranged in alignment, with the edges (9) facing each other, the blades (1, 2) of each pair being able to move in both directions of movement in the direction in which they are installed. that the edges (9) move closer or further away, modifying the size of the opening (3) of the mold according to needs.
Las primeras cuchillas (1) están alojadas en un carril de deslizamiento (10), mientras que las segundas cuchillas (2) se ubican sobre unos resaltes (12). Con esta configuración, por un lado, las cuchillas (1, 2) no se interfieren entre ellas en el movimiento y, por otro lado, los resaltes (12) tienen la funcionalidad de que las segundas cuchillas (2) mantengan una separación con el molde y así puedan engrasarse. The first blades (1) are housed in a sliding rail (10), while the second blades (2) are located on projections (12). With this configuration, on the one hand, the blades (1, 2) do not interfere with each other in the movement and, on the other hand, the projections (12) have the function of the second blades (2) maintaining a separation with the mold so they can be greased.
La figura 3 representa la forma de movimiento de las cuchillas (1 , 2). El molde incorpora un rehundido (6) para el alojamiento de un raíl (5) por el que desliza un patín (4) fijado a la cuchilla (1 , 2). Figure 3 represents the way the blades move (1, 2). The mold incorporates a recess (6) for housing a rail (5) along which a skate (4) fixed to the blade (1, 2) slides.
Por su parte, la cuchilla (1 , 2) está unida a un mecanismo biela-manivela (7) que se pone en movimiento a través de un actuador (8). For its part, the blade (1, 2) is attached to a connecting rod-crank mechanism (7) that is set in motion through an actuator (8).
Teniendo en cuenta esta configuración, la distancia entre los filos (9) de las cuchillas (1 , 2) de cada par es variable, pudiendo programar el movimiento de las cuchillas (1, 2) durante la extrusión y así obtener una barra de secciones muy vahadas. Taking this configuration into account, the distance between the edges (9) of the blades (1, 2) of each pair is variable, making it possible to program the movement of the blades (1, 2) during extrusion and thus obtain a bar of sections very hazy
En una forma de realización, los actuadores (8) de las cuchillas (1 , 2) de cada par están sincronizados, de forma que la separación entre las cuchillas (1 , 2) es simétrica. In one embodiment, the actuators (8) of the blades (1, 2) of each pair are synchronized, so that the separation between the blades (1, 2) is symmetrical.
En otra forma de realización, según se representa en las figuras 4 y 5, una de las cuchillas (1 , 2), la que corresponde al lado inferior de la abertura (3), sobre la que apoya sobre la pieza durante el proceso de extrusión, permanece fija, sin estar unida a ningún actuador (8) . La cuchilla (1 , 2) mencionada puede desplazarse manualmente actuando sobre un tornillo de ajuste (13) que la fija al molde, aunque con la limitación de tener que hacerse con la máquina parada. In another form of embodiment, as represented in Figures 4 and 5, one of the blades (1, 2), which corresponds to the lower side of the opening (3), on which it rests on the piece during the cutting process. extrusion, remains fixed, without being attached to any actuator (8). The aforementioned blade (1, 2) can be moved manually by acting on a screw adjustment (13) that fixes it to the mold, although with the limitation of having to do it with the machine stopped.
En cualquiera de los casos, las primeras cuchillas (1) están superpuestas a las segundas cuchillas (2), según se puede apreciar en las figuras. De este modo, ambos pares de cuchillas (1, 2) pueden moverse en los dos sentidos sin colisionar entre ellas y así poder variar la sección de extrusión. In either case, the first blades (1) are superimposed on the second blades (2), as can be seen in the figures. In this way, both pairs of blades (1, 2) can move in both directions without colliding with each other and thus be able to vary the extrusion section.
Para ubicar las cuchillas (1, 2), el molde tiene un carril de deslizamiento (10) para conducir el par de primeras cuchillas (1), el ubicado más en contacto con el molde. Además, con el objetivo de crear una separación entre las segundas cuchillas (2) y el molde, de forma que puedan ser engrasadas, el molde también incorpora unos resaltes (12) sobre los que deslizan las segundas cuchillas (2). To locate the blades (1, 2), the mold has a sliding rail (10) to drive the pair of first blades (1), the one located most in contact with the mold. Furthermore, in order to create a separation between the second blades (2) and the mold, so that they can be greased, the mold also incorporates projections (12) on which the second blades (2) slide.
En la figura 6 puede verse un ejemplo de pieza de cerámica obtenida (100) mediante el molde de extrusión anteriormente descrito, en el que dos lados opuestos (101) de la pieza (100) presentan una trayectoria ondulada que es obtenida a partir de la relación entre la velocidad de avance del material a través de las cuchillas (1, 2) y la velocidad oscilante de las cuchillas (1 , 2). In Figure 6 you can see an example of a ceramic piece obtained (100) using the extrusion mold previously described, in which two opposite sides (101) of the piece (100) present a wavy path that is obtained from the relationship between the speed of advance of the material through the blades (1, 2) and the oscillating speed of the blades (1, 2).
En la figura 7 puede verse una realización alternativa de una cuchilla (1 , 2) con un filo (9) de corte provisto de una porción (90) no rectilínea, en este caso sensiblemente en forma de “M”, de tal modo que puede obtenerse unas piezas de cerámica con una superficie (102) (superior según la posición espacial de los dibujos) con una forma sinuosa, como las representadas en las figuras 8 y 9. De esta manera se obtiene una pieza con un aspecto muy característico y original. Del mismo modo, se pueden obtener múltiples configuraciones (figuras 8 y 9) sin tener que modificar la forma de una boquilla extrusora a diferencia de lo que sucede en extrusoras convencionales, reduciendo así los tiempos de mantenimiento y sustitución de componentes. In Figure 7 you can see an alternative embodiment of a blade (1, 2) with a cutting edge (9) provided with a non-rectilinear portion (90), in this case substantially "M" shaped, such that Ceramic pieces can be obtained with a surface (102) (upper according to the spatial position of the drawings) with a sinuous shape, such as those represented in Figures 8 and 9. In this way, a piece with a very characteristic appearance and original. Likewise, multiple configurations can be obtained (figures 8 and 9) without having to modify the shape of an extruder nozzle unlike what happens in conventional extruders, thus reducing maintenance and component replacement times.
Para obtener una de las superficies de estas piezas de cerámica (100), se tiene en cuenta los parámetros relacionados con la velocidad de avance de material durante el proceso de extrusión cuando pasa por el molde, con el posicionamiento en tiempo real de la cuchilla (1 , 2) que tiene el filo (9) de corte sensiblemente en forma de “M”. Por último, hay que tener en cuenta que la presente invención no debe verse limitada a la forma de realización aquí descrita. Otras configuraciones pueden ser realizadas por los expertos en la materia a la vista de la presente descripción. En consecuencia, el ámbito de la invención queda definido por las siguientes reivindicaciones. To obtain one of the surfaces of these ceramic pieces (100), the parameters related to the speed of material advance during the extrusion process when it passes through the mold are taken into account, with the real-time positioning of the blade ( 1, 2) which has the cutting edge (9) substantially “M” shaped. Finally, it must be taken into account that the present invention should not be limited to the embodiment described here. Other configurations can be made by those skilled in the art in view of the present description. Consequently, the scope of the invention is defined by the following claims.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES202230991U ES1296787Y (en) | 2022-06-14 | 2022-06-14 | VARIABLE SECTION EXTRUSION MOLD |
| ESU202230991 | 2022-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023242460A1 true WO2023242460A1 (en) | 2023-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2023/070392 WO2023242460A1 (en) | 2022-06-14 | 2023-06-14 | Extrusion mould with a variable cross section |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES1296787Y (en) |
| WO (1) | WO2023242460A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4439125A (en) * | 1982-03-31 | 1984-03-27 | The Firestone Tire & Rubber Company | Adjustable die mechanism |
| US5989466A (en) * | 1995-03-16 | 1999-11-23 | Mitsubishi Aluminum Co., Ltd. | Variable section extrusion die set and variable extrusion molding method |
| US20050136163A1 (en) * | 2003-12-22 | 2005-06-23 | Good Humor-Breyers Ice Cream | Orifice modifier |
| US20110081453A1 (en) * | 2009-10-05 | 2011-04-07 | T.F.H. Publications, Inc. | 3-D Continuous Shaping Of Edible-Based Extrudates |
-
2022
- 2022-06-14 ES ES202230991U patent/ES1296787Y/en active Active
-
2023
- 2023-06-14 WO PCT/ES2023/070392 patent/WO2023242460A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4439125A (en) * | 1982-03-31 | 1984-03-27 | The Firestone Tire & Rubber Company | Adjustable die mechanism |
| US5989466A (en) * | 1995-03-16 | 1999-11-23 | Mitsubishi Aluminum Co., Ltd. | Variable section extrusion die set and variable extrusion molding method |
| US20050136163A1 (en) * | 2003-12-22 | 2005-06-23 | Good Humor-Breyers Ice Cream | Orifice modifier |
| US20110081453A1 (en) * | 2009-10-05 | 2011-04-07 | T.F.H. Publications, Inc. | 3-D Continuous Shaping Of Edible-Based Extrudates |
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| Publication number | Publication date |
|---|---|
| ES1296787U (en) | 2023-02-01 |
| ES1296787Y (en) | 2023-04-21 |
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