ES2425139A1 - Device and procedure for manufacturing footwear with a sole with a toe (Machine-translation by Google Translate, not legally binding) - Google Patents

Device and procedure for manufacturing footwear with a sole with a toe (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2425139A1
ES2425139A1 ES201300579A ES201300579A ES2425139A1 ES 2425139 A1 ES2425139 A1 ES 2425139A1 ES 201300579 A ES201300579 A ES 201300579A ES 201300579 A ES201300579 A ES 201300579A ES 2425139 A1 ES2425139 A1 ES 2425139A1
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Prior art keywords
sole
toe
last
molding means
mold
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Granted
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ES201300579A
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Spanish (es)
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ES2425139B1 (en
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Óscar BLANCO NAVARIDAS
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Talleres Corblan S A
TALLERES CORBLAN SA
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Talleres Corblan S A
TALLERES CORBLAN SA
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/06Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/065Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by compression moulding, vulcanising or the like
    • B29D35/067Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by compression moulding, vulcanising or the like using means to bond the moulding material to the preformed uppers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention describes a device, and method, for manufacturing footwear with a toe, comprising a last; lateral, sole and toe molding means; heating means of molding means; a single cylinder for moving sole molding means on the last; cylinder actuation means; means for displacing lateral molding means on the last; and means for moving the molding means of the toe on the last constituted by a transmission mechanism comprising a shaft connected by a first end to the cylinder, the movement of the cylinder being transmitted to the shaft; a rocker connected by a first end to the second end of the shaft, the rocker pivoting about an intermediate axis, the second end of the rocker moving in the opposite direction to the first; and a link connected to the second end of the rocker beam transmitting its movement to the tip molding means. (Machine-translation by Google Translate, not legally binding)

Description

DISPOSITIVO Y PROCEDIMIENTO PARA FABRICAR CALZADO DOTADO DE SUELA CON PUNTERA Campo de la invencien 5 La presente invencion se refiere de manera general al campo de la fabricacion de calzado. Mas concretamente, la presente invencion da a conocer un dispositivo para fabricar calzado del tipo dotado de suela con puntera, asi como un procedimiento para fabricar calzado de este tipo. 10 Antecedentes de la invencion Desde hace tiempo se conocen en la tecnica dispositivos y procedimientos para fabricar calzado, concretamente calzado del tipo que comprende un cuerpo principal (por ejemplo, de 15 material tejido) y una suela generalmente de goma o caucho, asi coma una puntera de refuerzo del mismo material que la suela y unida a esta Ultima. SegUn la tecnica anterior, la fabricacion de este tipo de calzado se realiza de manera clasica colocando el cuerpo 20 principal de calzado (tambien conocido coma quot;cortequot;) en un molde de una primera maquina, en la cual se le aplica la suela de goma. Posteriormente, se lleva el carte de calzado con la suela incorporada a un molde de una segunda maquina en la cual se realiza la colocacion de una puntera, generalmente 25 vulcanizada de manera previa. Este sistema de fabricacion presenta el inconveniente principal de que se necesitan dos maquinas distintas: una para la colocacion de la suela y otra para la colocacion de la puntera. Esto conlleva costes adicionales en la produccion 30 debidos a la propia adquisicion de dos maquinas distintas, a la necesidad de espacio disponible adicional para instalar ambas maquinas, a los gastos de alimentaciOn (electrica, neumatica,...) de las maquinas, gastos de mantenimiento de las maquinas y tiempo de fabricaciOn del calzado. Para solucionar estos problemas, se conoce en la tecnica 5 anterior la fabricaci6n de calzado dotado de suela con puntera de refuerzo mediante un procedimiento que incluye el uso de una Unica maquina dotada de dos pistones que actUan sobre dos mecanismos distintos. Un primer piston actua sobre un mecanismo que realiza la colocacion de la puntera de 10 refuerzo, mientras que un segundo piston actua sobre un mecanismo que realiza la colocacion de la suela. Asi, segun este procedimiento, debe realizarse una primera etapa de accionamiento del primer piston mediante la cual se aplica un molde contra la zona de puntera del corte de calzado, seguida 15 por una segunda etapa de accionamiento del segundo piston mediante la cual se aplica un molde contra la zona de suela del corte de calzado. Este procedimiento soluciona en parte algunos de los inconvenientes anteriormente mencionados, ya que se reduce el 20 espacio disponible necesario para la fabricaciOn de calzado (al incorporar las dos maquinas en una sola) asi como tambien se reduce parcialmente el tiempo de fabricaciOn (al no necesitar transportar el corte de calzado de una maquina a otra). Sin embargo, sigue presentando ciertos inconvenientes 25 que afectan al rendimiento y a los costes derivados de la fabricaciOn de calzado. Por un lado, sigue necesitandose alimentar dos pistones distintos, como en la tecnica anterior, lo cual supone costes de alimentaciOn de los mismos. Ademas, se requieren intervenciones de mantenimiento 30 (tanto preventivo como de reparaciOn) sobre ambos pistones, intervenciones que implican una parada temporal de la maquina y por tanto influyen sabre el rendimiento de fabricacion. Par Ultimo, se necesitan dos etapas independientes de accionamiento de cada uno de los pistones, cada una de las cuales aftade una cierta cantidad de tiempo necesario para la 5 fabricacion del calzado. For tanto, sigue existiendo en la tecnica la necesidad de un dispositivo y procedimiento que superen, al menos parcialmente, los inconvenientes anteriormente mencionados. Concretamente, seria deseable disponer de un dispositivo para 10 fabricar calzado dotado de suela con puntera que requiera menos intervenciones de mantenimiento y ocasione menos gastos de alimentacion. Asimismo, seria deseable disponer de un procedimiento para fabricar calzado dotado de suela con puntera que permita fabricar dicho calzado de una manera mds 15 rdpida. Sumario de la invencion La presente invencion resuelve los problemas mencionados de la tecnica anterior dando a conocer un dispositivo y 20 procedimiento para fabricar calzado que permiten la fabricacion de calzado dotado de suela can puntera en un numero reducido de etapas, y con un numero reducido de elementos. Concretamente, segUn un primer aspecto, la presente 25 invencion da a conocer un dispositivo para fabricar calzado del tipo dotado de suela can puntera. El dispositivo de la presente invencion comprende: - una horma para la colocacion de un carte de calzado; - medios de moldeo laterales, de suela y de puntera; 30 - medios de calentamiento de los medios de moldeo; - un Unica cilindro, alimentado par un circuito de alimentacion, conectado el cilindro a los medics de moldeo de suela para proporcionar el desplazamiento de los mismos sobre una zona de suela de la horma; - unos medics de accionamiento del cilindro; 5 - unos medics de desplazamiento de los medics de moldeo laterales para proporcionar el cierre de los mismos alrededor de la henna; y - unos medics de desplazamiento de los medics de moldeo de puntera sobre una zona de puntera de la horma; 10 El dispositivo de la presente invencion se caracteriza per que los medics de desplazamiento de los medics de moldeo de puntera estan constituidos per un mecanismo de transmision que transmite el movimiento del cilindro anteriormente mencionado al elemento porta-molde de puntera, de mode que un 15 Unico cilindro proporciona el desplazamiento tanto del elemento porta-molde de suela come del elemento porta-molde de puntera. El mecanismo de transmisiOn comprende: - un arbol conectado per un primer extreme, a traves de al menos una pieza de union, al cilindro, de mode que 20 se transmite el movimiento del cilindro a dicho arbol; - un balancin conectado per un primer extreme al segundo extreme del arbol, pudiendo el balancin pivotar alrededor de un eje intermedio, de mode que 25 el segundo extreme del balancin experimenta un movimiento en sentido inverse al del primer extreme del balancin; y - un eslabon conectado al segundo extreme del balancin, el cual transmite el movimiento del segundo extreme 30 del balancin directamente a los medics de moldeo de puntera. Par tanto, el accionamiento de un Unico cilindro provoca automdticamente el desplazamiento simultAneo tanto de los medios de moldeo de suela, directamente conectado al cilindro, coma de los medios de moldeo de puntera (a traves 5 de al menos una pieza de union, Arbol, balancin pivotante y eslabon). Ademas, tal coma se verd can mds detalle a continuacion en el presente documento, la presencia del balancin pivotante hace que el movimiento transmitido a los medios de moldeo de suela (directamente conectado al 10 cilindro) sea en sentido inverso al transmitido a los medios de moldeo de puntera (a traves del balancin pivotante). Segun un segundo aspecto, la presente invencion tambien da a conocer un procedimiento para fabricar calzado del tipo dotado de suela can puntera. El procedimiento de la invencion 15 comprende las etapas de: accionar unos medios de calentamiento de unos medios de moldeo; colocar un carte de calzado sabre una horma; colocar material de suela alrededor del contorno de 20 la suela, en la zona de puntera y en la zona de suela del carte de calzado; cerrar unos medios de moldeo laterales precalentados, dicho cierre se puede realizar de forma manual o automatizada; 25 accionar un circuito de alimentacion para desplazar automatica y simultaneamente, mediante un Unico cilindro, unos medios de moldeo de suela sabre la zona de suela del carte y unos medios de moldeo de puntera sabre la zona de puntera del carte; 30 esperar un tiempo suficiente para el vulcanizado del material de suela; - alejar los diversos medios de moldeo de la horma; y - extraer de la horma el carte de calzado can suela y puntera incorporadas. Par tanto, la invenciOn proporciona un procedimiento de 5 fabricacion de calzado rads rapid° y eficaz que el conocido en la tecnica anterior, ya que tan solo requiere una etapa para desplazar simultdneamente los medios de moldeo de suela y los medios de moldeo de puntera. El dispositivo y el procedimiento de la presente 10 invencion proporcionan varias ventajas can respecto a la tecnica anterior, tales coma par ejemplo un menor consumo de aire comprimido al emplearse un Unica cilindro, lo cual repercute en un menor coste de fabricaciOn del calzado. El dispositivo de la invencion tambien proporciona la ventaja de 15 ocupar un menor espacio que el de la tecnica anterior, al presentar un Unico cilindro en lugar de dos. Dada que el acoplamiento de los medios de moldeo de puntera y los medios de moldeo de suela se realiza de manera simultemea mediante un Unico cilindro, se reducen los esfuerzos de fatiga 20 experimentados par el dispositivo, con lo cual se aumenta la vida Util del dispositivo y se reducen los tiempos de parada necesarios para realizar operaciones de mantenimiento, can sus consecuentes impactos de reducciOn del caste de fabricacion final. 25 Breve descripci6n de las figuras La presente invencion se entenderA mejor can referencia a las siguientes figuras que ilustran una realizacion preferida de la invenciOn, proporcionada a modo de ejemplo, y 30 que no debe interpretarse coma limitativa de la invencion de ninguna manera. La figura 1 muestra una vista en perspectiva trasera de un dispositivo segun la realizacion preferida de la presente invencion. La figura 2 muestra una vista en perspectiva frontal del 5 dispositivo de la figura 1. La figura 3 muestra una vista en despiece ordenado de un mecanismo de transmision del movimiento del cilindro neumatico al elemento porta-molde de puntera segun la realizacion preferida de la presente invencion. 10 La figura 4 muestra una vista lateral del dispositivo segon la realizacion preferida de la presente invencion. pescripcion detallada de las realizaciones preferidas A lo largo de la presente memoria descriptiva, y en las 15 reivindicaciones adjuntas, cuando se usan terminos tales como quot;verticalquot;, quot;horizontalquot;, etc., deben interpretarse segün la orientaci6n del dispositivo tal como se presenta en las figuras adjuntas. Asimismo, a lo largo de la presente memoria, se utilizan 20 los terminos quot;cilindro neumaticoquot; y quot;circuito neumaticoquot; en la realizacion preferida de la invencion. Sin embargo, resulta evidente que estos terminos no limitan en absoluto el alcance de la presente invencion, pudiendo ser dicho cilindro y circuito de alimentacion de otro tipo que produzca el 25 movimiento de la parte movil del cilindro, como por ejemplo hidraulico o medics equivalentes. En la figura 1 se observa un dispositivo segOn la realizacion preferida de la presente invencion para fabricar calzado del tipo dotado de suela con puntera de refuerzo. El 30 dispositivo de la figura 1 comprende una horma (10) dispuesta con una zona de suela hacia arriba de mode que se facilita la colocacion de un corte de calzado (no mostrado en las figuras) por parte de un operario y elementos porta-moldes adecuados para alojar en los mismos moldes recambiables. Concretamente, los elementos porta-moldes son dos elementos 5 porta-moldes laterales (12) (tambien denominados brazos de molde laterales en el presente documento), un elemento porta-molde de suela (14) y un elemento porta-molde de puntera (16). Tal como se vere a continuacion en el presente documento, cada uno de estos elementos porta-moldes (12, 14, 10 16) sirve para soportar un molde respectivo: moldes.laterales (18), molde de suela (20) y molde de puntera (no mostrado en las figuras). El dispositivo comprende ademas un circuito electric° (no mostrado en las figuras) que comprende resistencias 15 electricas (resistencias laterales (22) (mostradas en la figura 2), resistencias de suela (24) (mostradas en la figura 1) y resistencia de puntera (no mostrada en las figuras)) prOximas a cada uno de los elementos porta-moldes (12, 14, 16) para aumentar la temperatura de los mismos (y por tanto 20 de los moldes respectivos), un unico cilindro neumetico (26), unos medics de accionamiento (tales come botones, palancas, etc., no mostrados en las figuras) del cilindro neumetico (26), unos medics de desplazamiento (mostrados en la figura 2) de los elementos porta-moldes laterales (12) para 25 proporcionar el cierre de los mismos alrededor de la horma (10), y unos medios de desplazamiento del elemento porta-molde de puntera (16) sobre una zona de puntera de la horma (10). El cilindro neumatico (26) puede ser o bien de simple 30 efecto o bien de doble efecto, y se alimenta (preferiblemente con aire a presion) per un circuito neumetico (no mostrado en las figuras). El cilindro neumatico (26) está conectado al element° porta-molde de suela (14) para proporcionar el desplazamiento del mismo sabre una zona de suela de la horma (10). Tal como se observa en la figura 1, el cilindro 5 neumatico (26) presenta un vastago (28) conectado al elemento porta-molde de suela (14). Conectada a este elemento porta-molde de suela (14) hay una resistencia electrica de suela (24), que se calienta mediante el paso de corriente electrica para aumentar la temperatura de un molde de suela 10 correspondiente. Conectado a esta resistencia electrica de suela (24) estd el molde de suela (20). El cilindro neumatico (26) se mantiene fijo mediante su sujecion a unos ejes de bastidor (30) sujetos a su vez a una base (32) del dispositivo. 15 Debajo del molde de suela (20) puede observarse un par de brazos de molde lateral o elementos porta-moldes laterales (12), que se describirdn con rads detalle a continuacion con referencia a la figura 2. El dispositivo de la figura 1 presenta ademas un 20 mecanismo de transmision del movimiento del cilindro neumdtico (26) al element° porta-molde de puntera (16) caracteristico de la presente invencion, que constituye medios de desplazamiento del elemento porta-molde de puntera (16). Este mecanismo de transmision del movimiento comprende 25 una pieza de union (34) conectada par un lado al elemento porta-molde de suela (14) (y par tanto indirectamente al vAstago (28) del cilindro neumatico (26)), y par otro lado a un primer extremo de un arbol (36). Par tanto, el movimiento del cilindro neumatico (26) se transmite de manera directa al 30 drbol (36). El mecanismo de transmision del movimiento tambien comprende un balancin (38) conectado por un primer extremo al segundo extremo del arbol (36). El balancin (38) puede pivotar alrededor de un eje intermedio (40), de modo que el segundo extremo del balancin (38) experimentare un movimiento 5 en sentido inverso al del primer extreme del balancin (38). Es decir, cuando el vastago (28) del cilindro neumatico (26) se desplaza hacia abajo, el elemento porta-molde de suela (14), la pieza de union (34) y el arbol (36) se desplazan hacia abajo, el primer extremo del balancin (38) se desplaza 10 hacia abajo y el segundo extreme del balancin (38) (debido al pivotamiento alrededor del eje intermedio (40)) se desplaza hacia arriba. El mecanismo de transmision del movimiento tambien comprende un eslabon (42) conectado al segundo extremo del 15 balancin (38) y que por tanto se movera en el mismo sentido que dicho segundo extremo del balancin (38), es decir, en sentido inverso al vastago (28) del cilindro neumatico (26). El eslabon (42) transmite directamente el movimiento al elemento porta-molde de puntera (16). 20 Por tanto, tal como puede apreciarse en la figura 1, el accionamiento del cilindro neumatico (26) provocara automaticamente y de manera simultanea el desplazamiento, por un lado, del elemento porta-molde de suela (14) hacia abajo (es decir, contra una zona de suela de la horma (10)) y, por 25 otro lado, del elemento porta-molde de puntera (16) hacia arriba (es decir, contra una zona de puntera de la horma (10)). Tal como puede apreciarse en la figura 1, la horma (10) se encuentra en una posicion exterior, alejada de los 30 elementos porta-moldes (12, 14, 16) del dispositivo, en la que se facilita la colocacion de un corte de calzado sobre la misma. La horma (10) esta dispuesta sobre un carril (44) sobre el que puede desplazarse desde dicha posicion exterior hasta una posicion interior (no mostrada en las figuras) en la que pueden aplicarse los elementos porta-moldes (12, 14, 5 16) (y por tanto los moldes respectivos) sobre las respectivas zonas de un corte de calzado colocado sobre la horma (10). Por ultimo, tal como tambien puede observarse en la figura 1, el dispositivo segUn la realizaciOn preferida de la 10 presente invencion tambien comprende una columna (46) que sirve de soporte para los brazos de molde lateral o elementos porta-moldes laterales (12), permitiendo el giro de estos Ultimos para realizar la apertura y cierre del molde lateral. Asimismo, la columna (46) tambien sirve como punto de anclaje 15 para la parte fija intermedia del balancin (38) (es decir, el eje intermedio (40)). Haciendo ahora referencia a la figura 2, puede apreciarse con mayor claridad la parte frontal del dispositivo segun la realizacion preferida de la presente 20 invencion. En esta figura 2 se han omitido los nUmeros de referencia de diversos elementos, ya comentados con referencia a la figura 1, por motivos de claridad. En esta figura 2 puede apreciarse que los elementos porta-moldes laterales (12) comprenden cada uno, en su parte interior, una 25 resistencia electrica lateral (22) conectada a un circuito electrico y que se calienta mediante el paso de corriente electrica por la misma, aumentando asi la temperatura de un molde lateral correspondiente. A cada una de las resistencias laterales (22) estd conectado un molde lateral recambiable 30 (18). En la parte frontal de los elementos porta-moldes laterales (12) pueden observarse un par de palancas (48A, 48B) asi como una pieza m6vil de bloqueo (50) Segün esta disposicion, un operario puede actuar sobre las palancas (48A, 48B) para cerrar los elementos porta-moldes laterales 5 (12) sobre una horma (10), y posteriormente actuar sobre la palanca (48B) para mover la pieza m6vil de bloqueo (50) de modo que bloquee el elemento porta-molde izquierdo con respecto al elemento porta-molde derecho, tal como conoce el experto en la tecnica a partir de otros dispositivos 10 habituales en la tecnica. La figura 3 muestra con mas detalle una vista en despiece ordenado del mecanismo de transmision del movimiento caracteristico de la presente invencion. Tal como se mencion6 anteriormente, este mecanismo de transmision del movimiento 15 comprende una pieza de union (34) conectada por un lado al elemento porta-molde de suela (14) (no mostrado en esta figura) y por otro lado a un primer extremo (superior, segUn la orientacion de las figuras) del arbol (36). En el segundo extremo (inferior) del arbol (36) se acopla un elemento de 20 union (52) que sirve para acoplar un primer extremo de las dos barras que componen el balancin (38). El balancin (38) esta unido en una zona sustancialmente central a un eje intermedio (40), que esta fijado a un cubo (54). El cubo (54) sirve para fijar el balancin (38), a traves 25 de su eje intermedio (40), a la columna (46) (no mostrada en esta figura) que pasara a traves del orificio central del cubo (54) que puede observarse en esta figura 3. En su segundo extremo, el balancin (38) esti& unido a un eslabon (42) a traves de un eje (56) que permite la rotacion 30 de este Ultimo. El eslabon (42) esta a su vez unido al elemento porta-molde de puntera (16). Gracias a este conjunto de elementos conectados entre Si, se permite la transmisiOn del movimiento del vastago (28) del cilindro neumatico (26) al elemento porta-molde de puntera (16), moviendose este ultimo en un sentido inverso 5 con respecto al movimiento inicial del vastago (28). El mecanismo de transmision comprende por Ultimo una varilla de guiado vertical (58) que se extiende hacia arriba desde una base (60) fijada al cubo (54). La varilla de guiado vertical (58) se introduce en un orificio dispuesto en el 10 elemento porta-molde de puntera (16), manteniendo asi una posicion esencialmente horizontal del elemento porta-molde de puntera (16) durante su desplazamiento vertical proporcionado por el balancin (38). Haciendo ahora referencia a la figura 3, puede 15 observarse con mayor claridad el funcionamiento del mecanismo de transmision del movimiento caracteristico de la presente invencion. Tal como se mencion6 anteriormente, la pieza de union (34) esta conectada por un lado al elemento porta-molde de suela (14) (conectado a su vez al vastago (28) del 20 cilindro neumatico (26)) y por otro lado a un primer extremo del Arbol (36). El segundo extremo del arbol (36) estA conectado a un primer extremo del balancin (38), el cual puede pivotar alrededor del eje intermedio (40). El segundo extremo del balancin (38) está conectado a un eslabon (42) (a 25 traves de un eje (56) que permite el giro de este Ultimo, tal como se mencion6 anteriormente). Por Ultimo, el eslabon (42) estA conectado a un elemento porta-molde de puntera (16). Finalmente, el movimiento del elemento porta-molde de puntera (16) se guia gracias a la varilla de guiado vertical (58). 30 Por otro lado, el elemento porta-molde de suela (14) (conectado al vastago (28) del cilindro neumatico (26)), tamblen este conectado al molde de suela (20) a traves de la resistencia de suela (24). Por tanto, tal coma apreciard un experto en la tecnica, un movimiento descendente del vastago (28) del cilindro 5 neumetico (26) provocard un movimiento descendente del molde de suela (20) (a traves del elemento porta-molde de suela (14) y la resistencia de suela (24)) de modo que se aplicare sabre una zona de suela de la horma (10) cuando esta se encuentra en su posicion interior (tal coma se describio 10 anteriormente en el presente documento). De manera simultenea y automatica, el movimiento descendente del vestago (28) tambien provocarA un movimiento igualmente descendente del elemento porta-molde de suela (14), la pieza de union (34), el drbol (36) y el primer 15 extremo del balancin (38). Gracias al pivotamiento del balancin (38) alrededor del eje intermedio (40), el movimiento descendente de su primer extremo se convierte en un movimiento ascendente de su segundo extremo, y par tanto este movimiento se 20 ascendente al eslaban molde de puntera (16). transmite tambien coma movimiento (42) y finamente al elemento porta-Por tanto, el elemento porta-molde de puntera (16) se aplicarA de manera ascendente contra una zona de puntera de la horma (10) situada en su posicion interior tal coma se describio anteriormente en el presente documento. 25 La presente invencion tambien proporciona, en un segundo aspecto, un procedimiento para fabricar calzado del tipo dotado de suela con puntera. El procedimiento de la presente invencion comprende las etapas de: - colocar moldes recambiables en elementos porta-30 moldes; - accionar un circuito electric° para aumentar la temperatura de unos moldes; colocar un corte de calzado sabre una horma; colocar material de suela alrededor del contorno de la suela, en la zona de puntera y en la zona de suela 5 del carte de calzado; desplazar la horma sabre un carril desde una posicion exterior en la que se coloca el carte sabre la horma hasta una posicion interior; cerrar unos moldes laterales precalentados; 10 - accionar un circuito neumetico para desplazar automatica y simultaneamente, mediante un Unica cilindro neumAtico, un molde de suela sabre la zona de suela del carte y un molde de puntera sabre la zona de puntera del carte; 15 esperar un tiempo suficiente para el vulcanizado del material de suela; alejar los diversos moldes de la horma; y extraer el carte de calzado can suela y puntera incorporadas de la horma. 20 Par tanto, el procedimiento seqUn la presente invencion permite fabricar calzado que comprende suela can puntera de refuerzo combinando en una Unica etapa la aplicacion de un molde de suela y de un molde de puntera sabre sus zonas respectivas en la horma, reduciendo asi tanto el tiempo de 25 fabricacion coma al usar un Unico ambos moldes. Aunque se la alimentacion de aire a presion necesaria cilindro neumatico para el desplazamiento de ha descrito la presente invencion can referencia a una realizacion preferida de la misma, debe 30 entenderse que la invencion no se limita a la misma, y que los expertos en la tecnica podran aplicar modificaciones y variaciones a dicha realizacion sin por ello apartarse del espiritu y el alcance de la presente invencion. Por ejemplo, aunque el cilindro y su circuito de alimentacion correspondiente descritos en la realizacion 5 preferida de la invencion son de tipo neumatico, los expertos en la tecnica entenderan que pueden ser de tipo hidreulico. Adicionalmente, segUn una realizacion de la invencion, el circuito electric° del dispositivo, que sine para aplicar corriente a las resistencias electricas y asi calentar los 10 diversos moldes del dispositivo, puede conectarse simplemente a la red electrica para proporcionar dicha corriente necesaria. Sin embargo, segun realizaciones adicionales preferidas, el dispositivo comprende edemas medios de accionamiento de dicho circuito electric°, de modo que puede 15 controlarse manual o automdticamente el paso y el bloqueo de la corriente electric& a traves de las resistencias electricas. Segun una realizacion aun mas preferida, dichos medios de accionamiento del circuito electric° comprenden un termostato de modo que se permite controlar una temperatura 20 de trabajo en los elementos porta-moldes. Los expertos en la tecnica entenderan que aunque en la realizacion preferida descrita anteriormente se emplea un circuito electric° junto con resistencias electricas para aumentar la temperature de los moldes, podran idearse 25 realizaciones alternativas de la invencion que incluyan cualquier otro media de calentamiento (por ejemplo, calentamiento par induccion) siempre que se proporcione dicho aumento de temperatura de los moldes. AdemAs, se ha descrito una realizacion de un dispositivo 30 segun la presente invencion que comprende elementos porta-moldes adecuados par& alojar unos moldes recambiables, de modo que se facilita la sustituci6n de los mismos por motivos de desgaste o para adaptar el dispositivo a la fabricacion de diversos modelos de calzado. Estos elementos porta-moldes actuan a modo de medios de moldeo dentro del dispositivo de 5 la presente invenci6n, incluyendo el dispositivo medios de moldeo laterales, medios de moldeo de suela y medios de moldeo de puntera. Sin embargo, segun una realizacion adicional de la presente invencion, los medios de moldeo del dispositivo consisten en moldes fijos no recambiables 10 laterales, de suela y de puntera. Asimismo, segun la realizaci6n anteriormente descrita del dispositivo de la presente invencion, la horma para la colocacion del carte de calzado se encuentra en posici6n invertida (es decir, con la suela hacia arriba), 15 facilitandose asi la colocacion del corte en la horma par parte de un operario. Sin embargo, segUn realizaciones adicionales del dispositivo segun la presente invencion, la horma se encuentra situada con la suela hacia abajo. Del mismo modo, aunque se ha descrito un procedimiento 20 para fabricar calzado segun la presente invencion que comprende una serie de etapas especificas, los expertos en la tecnica aplicar modificaciones al mismo (afiadiendo o eliminando etapas) sin par ello apartarse del alcance de la presente invencion, siempre que se mantenga la etapa de 25 accionamiento de un Unico cilindro neumatico para desplazar automatica y simultaneamente tanto un molde de suela coma un molde de puntera. Par ejemplo, realizaciones adicionales del procedimiento de la presente invencion pueden prescindir de una cualquiera o ambas de las etapas de colocar moldes 30 recambiables en elementos porta-moldes (par ejemplo en el caso de usar un dispositivo que comprende moldes solidarios no recambiables) y de desplazar la horma sobre un carril desde una posicion exterior en la que se coloca el corte sobre la horma hasta una posician interior (por ejemplo en el caso de usar un dispositivo que carece de dicho carril).      DEVICE AND PROCEDURE FOR MANUFACTURING FOOTWEAR FITTED FOOTWEAR Field of the invention The present invention relates generally to the field of footwear manufacturing. More specifically, the present invention discloses a device for manufacturing footwear of the type equipped with a sole with a toe cap, as well as a method for manufacturing footwear of this type. BACKGROUND OF THE INVENTION Devices and methods for making footwear have been known in the art for a long time, specifically footwear of the type comprising a main body (for example, woven material) and a sole usually of rubber or rubber, as well as a reinforcing toe of the same material as the sole and attached to this Ultima. According to the prior art, the manufacture of this type of footwear is done in a classic manner by placing the main shoe body (also known as "cut") in a mold of a first machine, in which the sole of the footwear is applied. rubber. Subsequently, the footwear card is carried with the sole incorporated into a mold of a second machine in which the placement of a toe cap, generally vulcanized previously, is carried out. This manufacturing system has the main disadvantage that two different machines are needed: one for the placement of the sole and another for the placement of the toe. This entails additional costs in the production 30 due to the own acquisition of two different machines, to the need of additional available space to install  both machines, to the expenses of feeding (electrical, pneumatic, ...) of the machines, expenses of maintenance of the machines and time of manufacture of the footwear. To solve these problems, it is known in the prior art 5 to manufacture footwear equipped with a sole with a reinforcing toe by a method that includes the use of a single machine equipped with two pistons that act on two different mechanisms. A first piston acts on a mechanism that performs the placement of the reinforcing toe, while a second piston acts on a mechanism that performs the placement of the sole. Thus, according to this method, a first step of driving the first piston must be carried out by means of which a mold is applied against the toe area of the shoe cut, followed by a second step of driving the second piston by means of which a mold against the sole area of the shoe cut. This procedure partially solves some of the aforementioned drawbacks, since the available space necessary for the manufacture of footwear is reduced (by incorporating the two machines into one) as well as the manufacturing time is partially reduced (since it does not need transport the shoe cut from one machine to another). However, it still has certain drawbacks that affect the performance and costs of shoe making. On the one hand, it is still necessary to feed two different pistons, as in the previous technique, which supposes feeding costs thereof. In addition, maintenance interventions 30 (both preventive and repair) are required on both pistons, interventions that involve a temporary stop of the machine  and therefore influence the manufacturing performance. Last, two independent stages of operation of each of the pistons are needed, each of which aftade a certain amount of time necessary for the manufacture of the footwear. Therefore, there continues to be a need in the art for a device and method that overcomes, at least partially, the aforementioned drawbacks. Specifically, it would be desirable to have a device for manufacturing footwear with a sole with a toe cap that requires less maintenance interventions and causes less feeding costs. Likewise, it would be desirable to have a method for manufacturing footwear with a sole with a toe that allows said footwear to be manufactured in a quicker manner. SUMMARY OF THE INVENTION The present invention solves the aforementioned problems of the prior art by disclosing a device and method for manufacturing footwear that allows the manufacture of footwear endowed with can-soles in a reduced number of stages, and with a reduced number of footwear. elements. Specifically, according to a first aspect, the present invention discloses a device for manufacturing footwear of the type equipped with a can-can sole. The device of the present invention comprises: - a form for the placement of a footwear card; - lateral, sole and toe molding means; 30 - means for heating the molding means; - A single cylinder, powered by a circuit of  feeding, connecting the cylinder to the sole molding medics to provide the displacement thereof on a sole area of the last; - cylinder operating means; 5 - a medics of displacement of the lateral molding media to provide closure of the same around the henna; and - some medics of displacement of the toe molding medics on a toe area of the last; The device of the present invention is characterized in that the displacement media of the toe-molding molds are constituted by a transmission mechanism that transmits the movement of the aforementioned cylinder to the toe-mold holder element, so that a The single cylinder provides the displacement of both the mold-holder element of the sole and the end-mold element. The transmission mechanism comprises: a tree connected by a first end, through at least one connecting piece, to the cylinder, in such a way that the movement of the cylinder is transmitted to said shaft; - a rocker connected by a first end to the second end of the tree, the rocker being able to pivot about an intermediate axis, so that the second end of the rocker experiences a movement in an inverse direction to that of the first end of the rocker; and - a link connected to the second end of the rocker, which transmits the movement of the second end 30 of the rocker directly to the leading molding media.  Therefore, the actuation of a single cylinder automatically causes the simultaneous displacement of both the molding means of the sole, directly connected to the cylinder, and of the molding means of the toe (through the at least one connecting piece, Tree, pivoting balance and link). Furthermore, as will be seen in more detail in the following document, the presence of the pivoting balancer causes the movement transmitted to the sole molding means (directly connected to the cylinder) to be in the opposite direction to that transmitted to the means of molding. Toe molding (through the pivoting rocker). According to a second aspect, the present invention also discloses a method for manufacturing footwear of the type equipped with a can-can sole. The method of the invention comprises the steps of: actuating means for heating a molding means; place a footwear card over a last; placing sole material around the contour of the sole, in the toe area and in the sole area of the footwear card; closing a pre-heated lateral molding means, said closing can be performed manually or automated; To actuate a feeding circuit for automatically and simultaneously moving, by means of a single cylinder, a means of molding the sole on the sole area of the card and a means of molding the toe on the toe area of the card; 30 wait a sufficient time for vulcanizing the sole material;  - move away the various means of molding the last; and - extract from the last the footwear shoe with built-in sole and toe cap. Therefore, the invention provides a rapid and effective shoe manufacturing process that is known in the prior art, since it only requires a step to simultaneously move the sole molding means and the toe molding means. The device and the method of the present invention provide several advantages with respect to the prior art, such as, for example, a lower consumption of compressed air when a single cylinder is used, which results in a lower footwear manufacturing cost. The device of the invention also provides the advantage of occupying a smaller space than that of the prior art, by presenting a single cylinder instead of two. Since the coupling of the toe molding means and the sole molding means is carried out in a simulated manner by a single cylinder, the fatigue stresses 20 experienced by the device are reduced, thereby increasing the useful life of the device. and the downtimes necessary to carry out maintenance operations are reduced, with their consequent impacts of reduction of the final manufacturing caste. BRIEF DESCRIPTION OF THE FIGURES The present invention will be better understood with reference to the following figures illustrating a preferred embodiment of the invention, provided by way of example, and which should not be construed as limiting the invention in any way.  Figure 1 shows a rear perspective view of a device according to the preferred embodiment of the present invention. Fig. 2 shows a front perspective view of the device of Fig. 1. Fig. 3 shows an exploded view of a mechanism for transmitting the movement of the pneumatic cylinder to the leading mold-holder element according to the preferred embodiment of the present invention. invention. Figure 4 shows a side view of the device according to the preferred embodiment of the present invention. Detailed Description of the Preferred Embodiments Throughout the present specification, and in the appended claims, when terms such as "vertical", "horizontal", "etc." are used, they should be interpreted according to the orientation of the device such as It is presented in the attached figures. Also, throughout the present specification, the terms "pneumatic cylinder" are used; and "pneumatic circuit" in the preferred embodiment of the invention. However, it is clear that these terms do not limit the scope of the present invention at all, it being possible for said cylinder and other type of supply circuit to produce the movement of the moving part of the cylinder, such as hydraulic or equivalent means. Figure 1 shows a device according to the preferred embodiment of the present invention for manufacturing footwear of the type provided with a sole with reinforcing toe. The device of figure 1 comprises a last (10) arranged with a sole area upwards of mode that facilitates the  positioning of a shoe cut (not shown in the figures) by an operator and mold-holder elements suitable for accommodating the same replaceable molds. Specifically, the mold-holder elements are two lateral mold-holder elements (12) (also referred to as lateral mold arms in the present document), a sole-mold-holder element (14) and a tip-holder mold element ( 16). As will be seen in the following document, each of these mold-carrying elements (12, 14, 10 16) serves to support a respective mold: lateral molds (18), sole mold (20) and mold. tip (not shown in the figures). The device further comprises an electric circuit (not shown in the figures) comprising electrical resistances (side resistances (22) (shown in Figure 2), sole resistances (24) (shown in Figure 1) and resistance of toe (not shown in the figures)) next to each of the mold-holder elements (12, 14, 16) to increase the temperature thereof (and therefore 20 of the respective molds), a single pumice cylinder (26). ), actuating means (such as buttons, levers, etc., not shown in the figures) of the pumice cylinder (26), displacement media (shown in figure 2) of the side mold-holder elements (12) to provide the closure thereof around the last (10), and a means of moving the toe-holder element (16) on a toe area of the last (10). The pneumatic cylinder (26) can be either simple effect or double effect, and is fed (preferably with pressurized air) per a pneumatic circuit (not shown in FIG.  the figures). The pneumatic cylinder (26) is connected to the sole-mold-holder element (14) to provide the displacement thereof on a sole region of the last (10). As seen in Figure 1, the pneumatic cylinder (26) has a rod (28) connected to the sole-mold holder element (14). Connected to this sole-carrying mold element (14) is a sole electrical resistance (24), which is heated by the passage of electric current to increase the temperature of a corresponding sole mold 10. Connected to this sole electrical resistance (24) is the sole mold (20). The pneumatic cylinder (26) is held fixed by its attachment to frame axes (30) in turn fastened to a base (32) of the device. Below the sole mold (20) a pair of side mold arms or side mold holder elements (12) can be seen, which will be described in detail below with reference to Figure 2. The device of Figure 1 presents furthermore a mechanism for transmitting the movement of the pneumatic cylinder (26) to the toe mold-holder element (16) characteristic of the present invention, which constitutes means for moving the toe-mold holder element (16). This motion transmission mechanism comprises a connecting piece (34) connected on one side to the sole-mold holder element (14) (and torque both indirectly to the rod (28) of the pneumatic cylinder (26)), and for another side to a first end of a tree (36). Therefore, the movement of the pneumatic cylinder (26) is transmitted directly to the 30th tree (36). The transmission mechanism of the movement also  it comprises a rocker (38) connected by a first end to the second end of the shaft (36). The rocker (38) can pivot about an intermediate axis (40), so that the second end of the rocker (38) will undergo a movement 5 in the opposite direction to that of the first end of the rocker (38). That is, when the rod (28) of the pneumatic cylinder (26) moves downwards, the sole-mold-carrying element (14), the connecting piece (34) and the tree (36) move downwards, the The first end of the rocker (38) moves down 10 and the second end of the rocker (38) (due to the pivoting around the intermediate axis (40)) moves upwards. The movement transmission mechanism also comprises a link (42) connected to the second end of the rocker (38) and which will therefore move in the same direction as said second end of the rocker (38), that is, in the opposite direction to the rod (28) of the pneumatic cylinder (26). The link (42) directly transmits the movement to the leading mold-holder element (16). Therefore, as can be seen in FIG. 1, the actuation of the pneumatic cylinder (26) will automatically and simultaneously cause the displacement, on the one hand, of the sole-mold-holder element (14) downwards (i.e. against a sole region of the last (10)) and, on the other hand, of the toe-mold member (16) upwards (ie against a toe area of the last (10)). As can be seen in Figure 1, the last (10) is in an external position, away from the mold-holder elements (12, 14, 16) of the device, which facilitates the placement of a cut of footwear on  same The last (10) is arranged on a rail (44) on which it can be moved from said outer position to an internal position (not shown in the figures) in which the mold-holder elements (12, 14, 5) can be applied. ) (and therefore the respective molds) on the respective zones of a shoe cut placed on the last (10). Finally, as can also be seen in Figure 1, the device according to the preferred embodiment of the present invention also comprises a column (46) that serves as support for the side mold arms or side mold-holder elements (12) , allowing the rotation of these Ultimos to realize the opening and closing of the lateral mold. Likewise, the column (46) also serves as the anchoring point 15 for the intermediate fixed part of the rocker (38) (ie, the intermediate shaft (40)). Referring now to Figure 2, the front part of the device according to the preferred embodiment of the present invention can be seen more clearly. In this figure 2 reference numerals of various elements, already commented with reference to figure 1, have been omitted for reasons of clarity. In this figure 2 it can be seen that the lateral mold-holder elements (12) each comprise, on their inner part, a lateral electrical resistance (22) connected to an electric circuit and heated by the passage of electric current through the same, thus increasing the temperature of a corresponding lateral mold. A replaceable side mold 30 (18) is connected to each of the side resistances (22). On the front of the mold-holder elements  lateral (12) can be observed a pair of levers (48A, 48B) as well as a mobile blocking piece (50) According to this arrangement, an operator can act on the levers (48A, 48B) to close the side mold-holder elements 5 (12) on a last (10), and subsequently act on the lever (48B) to move the movable blocking part (50) so as to block the left mold-holder element with respect to the right-mold-holder element, such as the person skilled in the art knows from other devices 10 common in the art. Figure 3 shows in more detail an exploded view of the transmission mechanism of the characteristic movement of the present invention. As mentioned above, this movement transmission mechanism 15 comprises a connecting piece (34) connected on one side to the sole mold carrier element (14) (not shown in this figure) and on the other hand to a first end (superior, according to the orientation of the figures) of the tree (36). At the second (lower) end of the shaft (36) a joining element (52) engages which serves to couple a first end of the two bars that make up the rocker (38). The rocker (38) is attached in a substantially central area to an intermediate shaft (40), which is fixed to a hub (54). The hub (54) serves to fix the rocker (38), through its intermediate axis (40), to the column (46) (not shown in this figure) that passes through the central hole of the hub (54) which can be observed in this figure 3. At its second end, the rocker (38) is joined to a link (42) through an axis (56) that allows the rotation 30 of the latter. The link (42) is in turn joined to the leading-mold element (16).  Thanks to this set of elements connected between Si, the transmission of the movement of the rod (28) of the pneumatic cylinder (26) to the leading mold-holder element (16) is allowed, the latter moving in an inverse direction 5 with respect to the movement. initial of the rod (28). The transmission mechanism comprises finally a vertical guide rod (58) that extends upwards from a base (60) fixed to the hub (54). The vertical guide rod (58) is inserted into a hole provided in the toe-holder mold element (16), thus maintaining an essentially horizontal position of the toe-mold holder element (16) during its vertical movement provided by the rocker (38). Referring now to Figure 3, the operation of the motion transmission mechanism characteristic of the present invention can be observed more clearly. As mentioned above, the connecting piece (34) is connected on one side to the sole-mold holder element (14) (connected in turn to the rod (28) of the pneumatic cylinder (26)) and on the other hand to a first end of the Tree (36). The second end of the shaft (36) is connected to a first end of the rocker (38), which can pivot about the intermediate axis (40). The second end of the rocker (38) is connected to a link (42) (through an axis (56) that allows the rotation of the latter, as mentioned above). Finally, the link (42) is connected to a leading mold-holder element (16). Finally, the movement of the toe-cap mold element (16) is guided by the vertical guide rod (58). On the other hand, the sole-holder element (14) (connected to the rod (28) of the pneumatic cylinder (26)),  They are also connected to the sole mold (20) through the sole resistance (24). Therefore, as will be appreciated by one skilled in the art, a downward movement of the rod (28) of the pneumatic cylinder (26) will cause a downward movement of the sole mold (20) (through the sole-holder element (14)). ) and the sole resistance (24)) so that it will be applied over a sole region of the last (10) when it is in its inner position (such as was described earlier in this document). Simultaneously and automatically, the downward movement of the stem (28) will also cause an equally descending movement of the sole-mold-holder element (14), the joining piece (34), the shaft (36) and the first end of the shaft. rocker (38). Thanks to the pivoting of the rocker (38) around the intermediate axis (40), the downward movement of its first end becomes an upward movement of its second end, and for both this movement ascends to the slatted end mold (16) . It also transmits movement (42) and finely to the carrier element. Therefore, the toe-cap mold element (16) will be applied upwards against a toe portion of the last (10) located in its inner position such as described earlier in this document. The present invention also provides, in a second aspect, a method for manufacturing footwear of the outsole type. The process of the present invention comprises the steps of: - placing replaceable molds on 30-mold-holder elements; - operate an electric circuit to increase the  temperature of some molds; place a shoe cut over a last; placing sole material around the contour of the sole, in the toe area and in the sole area 5 of the footwear card; to move the last on a rail from an external position in which the placard is placed on the last to an inner position; close some preheated side molds; 10 - actuate a pneumatic circuit to move automatically and simultaneously, by means of a single pneumatic cylinder, a sole mold on the sole area of the board and a toe mold on the toe cap area; 15 wait a sufficient time for vulcanizing the sole material; move away the various molds from the last; and extract the footwear shoe with built-in sole and toe cap from the last. Therefore, the method according to the present invention allows the manufacture of footwear comprising a reinforced sole with a sole combining in a single step the application of a sole mold and a toe mold on their respective zones in the last, thus reducing both the 25 manufacturing time comma when using a Unico both molds. Although the required air supply to the required pneumatic cylinder for displacement of the present invention is referenced with reference to a preferred embodiment thereof, it should be understood that the invention is not limited thereto, and that those skilled in the art they will be able to apply modifications and  variations to said embodiment without thereby departing from the spirit and scope of the present invention. For example, although the cylinder and its corresponding feed circuit described in the preferred embodiment of the invention are of the pneumatic type, those skilled in the art will understand that they may be of the hydrolytic type. Additionally, according to an embodiment of the invention, the electric circuit of the device, which is used to apply current to the electrical resistances and thus heat the various molds of the device, can be simply connected to the electrical network to provide said necessary current. However, according to further preferred embodiments, the device comprises means for actuating said electric circuit, so that the passage and blocking of the electric current through the electrical resistances can be controlled manually or automatically. According to an even more preferred embodiment, said means for driving the electric circuit comprise a thermostat so that a working temperature in the mold-holder elements can be controlled. Those skilled in the art will understand that although in the preferred embodiment described above an electric circuit is employed in conjunction with electrical resistors to increase the temperature of the molds, alternative embodiments of the invention including any other heating means (e.g. , heating induction) provided that said temperature increase of the molds is provided. In addition, an embodiment of a device 30 according to the present invention has been described which comprises mold-holder elements suitable for housing replaceable molds,  so that the substitution of them for reasons of wear is facilitated or to adapt the device to the manufacture of various footwear models. These mold-holder elements act as molding means within the device of the present invention, the device including lateral molding means, sole molding means and toe molding means. However, according to a further embodiment of the present invention, the molding means of the device consist of non-replaceable fixed molds 10, sole and toe cap. Also, according to the above-described embodiment of the device of the present invention, the last for the placement of the footwear card is in an inverted position (ie with the sole upwards), thus facilitating the placement of the cut in the last pair. part of an operator. However, according to further embodiments of the device according to the present invention, the last is located with the sole downwards. Similarly, although a method for manufacturing footwear according to the present invention has been described which comprises a series of specific steps, those skilled in the art apply modifications thereto (adding or eliminating steps) without departing from this scope. invention, provided that the step of operating a single pneumatic cylinder is maintained to automatically and simultaneously move both a sole mold and a toe mold. For example, additional embodiments of the method of the present invention can dispense with either or both of the steps of placing replaceable molds in mold-holder elements (for example in the case of using a device comprising integral molds).  not replaceable) and to move the last on a rail from an external position in which the cut is placed on the last to an internal position (for example in the case of using a device that lacks said rail).

Claims (3)

1. Dispositivo para fabricar calzado del tipo dotado de suela con puntera, comprendiendo el dispositivo: una horma (10) para la colocacion de un corte de 5 calzado; medics de moldeo laterales, de suela y de puntera; medics de calentamiento de los medics de moldeo; un Unico cilindro (26), alimentado per un circuito de alimentacion, conectado dicho cilindro a los medics 10 de moldeo de suela para proporcionar el desplazamiento de los mismos sobre una zona de suela de la horma (10); unos medics de accionamiento del cilindro (26); unos medics de desplazamiento de los medios de moldeo 15 laterales para proporcionar el cierre de los mismos alrededor de la horma (10); y unos medics de desplazamiento de los medios de moldeo de puntera sobre una zona de puntera de la horma (10); 20 caracterizado por que los medics de desplazamiento de los medics de moldeo de puntera estAn constituidos per un mecanismo de transmision del movimiento del cilindro (26) a los medics de moldeo de puntera, que comprende: 25 un Arbol (36) conectado per un primer extreme, a traves de al menos una pieza de union (34), al cilindro (26), de mode que se transmite el movimiento del cilindro (26) a dicho Arbol (36); un balancin (38) conectado per un primer extremo 30 al segundo extreme del Arbol (36), pudiendo el balancin (38) pivotar alrededor de un eje intermedio (40), de modo que el segundo extremo del balancin (38) experimenta un movimiento en sentido inverso al del primer extremo del balancin (38); y 5 - un eslabon (42) conectado al segundo extremo del balancin (38), el cual transmite el movimiento del segundo extremo del balancin (38) directamente a los medios de moldeo de puntera; de modo que el accionamiento de un Unico cilindro (26) 10 provoca autometicamente el desplazamiento simultAneo tanto de los medios de moldeo de suela como de los medios de moldeo de puntera. 1. Device for manufacturing footwear of the type provided with a toe-cap sole, the device comprising: a last (10) for placing an upper of footwear; side, sole and toe molding medics; heating medics of molding medics; a single cylinder (26), fed by a feeding circuit, said cylinder connected to the sole molding means 10 to provide movement thereof on a sole zone of the last (10); cylinder actuation means (26); means of displacement of the lateral molding means 15 to provide the closure thereof around the last (10); and means of movement of the toe molding means over a toe area of the last (10); 20 characterized in that the movement means of the toe molding means are constituted by a mechanism for transmitting the movement of the cylinder (26) to the toe molding means, comprising: 25 a Shaft (36) connected by a first end, through at least one connecting piece (34), to the cylinder (26), so that the movement of the cylinder (26) is transmitted to said Shaft (36); a rocker (38) connected by a first end 30 to the second end of the Shaft (36), the rocker (38) being able to pivot around an axis intermediate (40), so that the second end of the rocker (38) experiences a movement in the opposite direction to that of the first end of the rocker (38); and 5 - a link (42) connected to the second end of the rocker (38), which transmits the movement of the second end of the rocker (38) directly to the toe molding means; so that the actuation of a single cylinder (26) automatically causes the simultaneous displacement of both the sole molding means and the toe molding means. 2. Dispositivo segun la reivindicacion anterior, caracterizado por que comprende ademAs una varilla de 15 guiado vertical (58), que se introduce en un orificio dispuesto en los medios de moldeo de puntera, manteniendo asi una posicion esencialmente horizontal de los medios de moldeo de puntera durante su desplazamiento proporcionado por el balancin (38). 20 3. Dispositivo segun cualquiera de las reivindicaciones anteriores, caracterizado por que los medios de calentamiento de los medios de moldeo consisten en un circuito electrico que comprende resistencias electricas laterales (22), de suela (24) y de puntera proximas a 25 cada uno de los medios de moldeo para aumentar la temperatura de los mismos. 4. Dispositivo segUn la reivindicacion 3, caracterizado por que comprende medios de accionamiento del circuito electric°. 30 5. Dispositivo segun la reivindicacion 4, caracterizado por que dichos medios de accionamiento del circuito el6ctrico comprenden un termostato para controlar una temperatura de trabajo en los medios de moldeo. 6. Dispositivo segun cualquiera de las reivindicaciones anteriores, caracterizado por que los medios de moldeo 5 consisten en elementos porta-moldes adecuados para alojar moldes recambiables, comprendiendo dichos medios de moldeo: - elementos porta-moldes laterales (12); - elemento porta-molde de suela (14); y 10 - elemento porta-molde de puntera (16). 7. Dispositivo segan cualquiera de las reivindicaciones 1 a 5, caracterizado por que los medios de moldeo consisten en moldes fijos no recambiables laterales (18), de suela (20) y de puntera. 15 8. Dispositivo segun cualquiera de las reivindicaciones anteriores, caracterizado por que comprende ademas un carril de desplazamiento (44) sobre el que esta montada la horma (10), pudiendo desplazarse la horma (10) sobre dicho carril (44) entre una posicion exterior y una 20 posicion interior en la que se aplican los medios de moldeo sobre la horma (10). 9. Dispositivo segun cualquiera de las reivindicaciones anteriores, caracterizado por que la horma (10) esta dispuesta con una zona de suela hacia arriba. 25 10. Dispositivo segon cualquiera de las reivindicaciones anteriores, caracterizado por que el cilindro (26) es de simple efecto. 11. Dispositivo segUn cualquiera de las reivindicaciones 1 a 9, caracterizado por que el cilindro (26) es de doble 30 efecto. 12. Dispositivo segUn cualquiera de las reivindicaciones anteriores, caracterizado par que el cilindro (26) es de tipo hidraulico, neumdtico o similar. 13. Procedimiento para fabricar calzado del tipo dotado de suela can puntera, que comprende las etapas de: 5 - accionar unos medios de calentamiento de unos medios de moldeo; colocar un carte de calzado sobre una horma; colocar material de suela alrededor del contorno de la suela, en la zona de puntera y en la zona de suela 10 del carte de calzado; cerrar unos medics de moldeo laterales precalentados; accionar un circuito de alimentacion para desplazar automdtica y simultaneamente, mediante un Unico cilindro, unos medios de moldeo de suela sabre la 15 zona de suela del carte y unos medios de moldeo de puntera sabre la zona de puntera del carte; esperar un tiempo suficiente pan el vulcanizado del material de suela; alejar los diversos medics de moldeo de la horma; y 20 extraer el carte de calzado can suela y puntera incorporadas de la horma. 14. Procedimiento sequn la reivindicacion 13, caracterizado par que comprende una etapa inicial de colocar moldes recambiables en elementos porta-moldes para constituir 25 los medios de moldeo. 15. Procedimiento sequn cualquiera de las reivindicaciones 13 y 14, caracterizado par que comprende la etapa adicional de desplazar la horma sabre un carril desde una posicion exterior en la que se coloca el carte sabre 30 la horma hasta una posicion interior en la que pueden cerrarse los moldes sabre la horma. FIG. 1 10 FIG. 2 38 34 FIG. Device according to the preceding claim, characterized in that it also comprises a vertical guide rod (58), which is inserted into a hole arranged in the toe molding means, thus maintaining an essentially horizontal position of the toe molding means. toe during its movement provided by the rocker (38). Device according to any of the preceding claims, characterized in that the heating means of the molding means consist of an electrical circuit comprising lateral (22), sole (24) and toe electric resistances close to 25 each. of the molding means to increase the temperature of the same. 4. Device according to claim 3, characterized in that it comprises means for actuating the electric circuit. 5. Device according to claim 4, characterized in that said means for actuating the circuit Electrical components comprise a thermostat to control a working temperature in the molding means. Device according to any of the preceding claims, characterized in that the molding means 5 consist of suitable mold-holder elements to house replaceable molds, said molding means comprising: - lateral mold-holder elements (12); - sole mold holder element (14); and 10 - toe mold-holder element (16). Device according to any one of claims 1 to 5, characterized in that the molding means consist of fixed non-replaceable lateral molds (18), sole (20) and toe cap. Device according to any of the preceding claims, characterized in that it also comprises a displacement rail (44) on which the last (10) is mounted, the last (10) being able to move on said rail (44) between a position exterior and an interior position in which the molding means are applied on the last (10). Device according to any of the preceding claims, characterized in that the last (10) is arranged with a sole area facing upwards. 10. Device according to any of the preceding claims, characterized in that the cylinder (26) is single-acting. Device according to any one of claims 1 to 9, characterized in that the cylinder (26) is double acting. 12. Device according to any of the claims above, characterized by the fact that the cylinder (26) is of the hydraulic, pneumatic or similar type. 13. Process for manufacturing footwear of the type with a toe-cap sole, comprising the steps of: 5 - actuating heating means of molding means; place a shoe card on a last; placing sole material around the contour of the sole, in the toe area and in the sole area 10 of the shoe card; close some preheated side mold medics; actuating a feeding circuit to automatically and simultaneously move, by means of a single cylinder, a sole molding means on the sole area of the card and a toe molding means on the toe area of the card; wait long enough for the vulcanization of the sole material; move the various molding medications away from the last; and 20 extracting the shoe card with a built-in sole and toe from the last. 14. Process according to claim 13, characterized by comprising an initial step of placing replaceable molds in mold-holder elements to constitute the molding means. 15. Method according to any of claims 13 and 14, characterized by comprising the additional step of moving the last on a rail from an external position in which the sign is placed on the last to an internal position in which they can be closed. the molds on the last. FIG. 1 10 FIG. 2 38 34 FIG. 3 FIG. 4 3 FIG. 4
ES201300579A 2013-06-07 2013-06-07 Device and procedure for manufacturing footwear with sole with toe Expired - Fee Related ES2425139B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB361950A (en) * 1930-07-31 1931-11-30 United Shoe Machinery Corp Improvements in or relating to machines for and methods of making boots or shoes
GB768375A (en) * 1954-09-09 1957-02-13 Antonio Ferrari & Figli Spa Improvements in or relating to the manufacture of shoes
GB842688A (en) * 1957-07-01 1960-07-27 Herbert Ludwig Improvements in or relating to means for vulcanising rubber soles on footwear
ES294487A1 (en) * 1963-10-09 1964-01-16 Ohg Antonio Novae Antonio Nova Improvements in molds suitable for the manufacture of footwear provided with rubber sole and a previous point integral with the sole (Machine-translation by Google Translate, not legally binding)
ES253146U (en) * 1980-09-25 1980-12-16 Maya Iberica,S.L. Device for sticking sole, heels and shoe points (Machine-translation by Google Translate, not legally binding)
ES2367385A1 (en) * 2010-04-15 2011-11-03 María León Martínez-Losa Footwear manufacturing process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB361950A (en) * 1930-07-31 1931-11-30 United Shoe Machinery Corp Improvements in or relating to machines for and methods of making boots or shoes
GB768375A (en) * 1954-09-09 1957-02-13 Antonio Ferrari & Figli Spa Improvements in or relating to the manufacture of shoes
GB842688A (en) * 1957-07-01 1960-07-27 Herbert Ludwig Improvements in or relating to means for vulcanising rubber soles on footwear
ES294487A1 (en) * 1963-10-09 1964-01-16 Ohg Antonio Novae Antonio Nova Improvements in molds suitable for the manufacture of footwear provided with rubber sole and a previous point integral with the sole (Machine-translation by Google Translate, not legally binding)
ES253146U (en) * 1980-09-25 1980-12-16 Maya Iberica,S.L. Device for sticking sole, heels and shoe points (Machine-translation by Google Translate, not legally binding)
ES2367385A1 (en) * 2010-04-15 2011-11-03 María León Martínez-Losa Footwear manufacturing process

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