WO2000009424A1 - Silo for storing light hollow bodies with controllable discharge - Google Patents

Silo for storing light hollow bodies with controllable discharge Download PDF

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Publication number
WO2000009424A1
WO2000009424A1 PCT/ES1998/000230 ES9800230W WO0009424A1 WO 2000009424 A1 WO2000009424 A1 WO 2000009424A1 ES 9800230 W ES9800230 W ES 9800230W WO 0009424 A1 WO0009424 A1 WO 0009424A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
plates
silo
inclination
opening
Prior art date
Application number
PCT/ES1998/000230
Other languages
Spanish (es)
French (fr)
Inventor
Jaime Marti Sala
Original Assignee
Jaime Marti Sala
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jaime Marti Sala filed Critical Jaime Marti Sala
Priority to PCT/ES1998/000230 priority Critical patent/WO2000009424A1/en
Priority to AT99940206T priority patent/ATE238209T1/en
Priority to US09/762,883 priority patent/US6457610B1/en
Priority to CA002339957A priority patent/CA2339957C/en
Priority to EP99940206A priority patent/EP1106534B1/en
Priority to DK99940206T priority patent/DK1106534T3/en
Priority to PT99940206T priority patent/PT1106534E/en
Priority to DE69907217T priority patent/DE69907217T2/en
Priority to BR9912894-2A priority patent/BR9912894A/en
Priority to ES99940206T priority patent/ES2197664T3/en
Priority to AU54234/99A priority patent/AU760104B2/en
Priority to CNB998111872A priority patent/CN1151051C/en
Priority to PCT/ES1999/000262 priority patent/WO2000009425A2/en
Publication of WO2000009424A1 publication Critical patent/WO2000009424A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/62—Gates or closures having closure members movable out of the plane of the opening
    • B65D90/623—Gates or closures having closure members movable out of the plane of the opening having a rotational motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/12—Supports
    • B65D90/20—Frames or nets, e.g. for flexible containers
    • B65D90/205—Frames or nets, e.g. for flexible containers for flexible containers, i.e. the flexible container being permanently connected to the frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/58—Gates or closures having closure members sliding in the plane of the opening
    • B65D90/587—Gates or closures having closure members sliding in the plane of the opening having a linear motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/54—Gates or closures
    • B65D2590/545—Gates or closures flexible gates

Definitions

  • the present invention concerns a silo for storage of light hollow bodies, especially conceived (although its application may be generalized to other articles) to temporarily accumulate empty plastic containers facing a subsequent feeding thereof towards treatment lines (bottling, labeling, filling, etc.), whose silo is of the type that is provided with a loading opening at a high level and in a lower part of a gravity discharge opening of the containers, superimposed on an outlet conveyor belt that links with a corresponding further line of treatment or handling of said containers.
  • documents 2,905,365 and US 3,286,886 describe devices for the supply of bulk materials, or hoppers, both formed by a container of flat, rigid fixed walls, of rectangular cross-section, whose area decreases from above down, provided with an outlet opening at the lower end.
  • a flat, rigid plate is attached, connected to means for applying a vibratory movement to said plate.
  • This arrangement has the disadvantage that there is a space between the rigid plate and the wall of the hopper in which dirt particles tend to be introduced and accumulated that hinder the operation of the device, and which are difficult to clean without disassembling the apparatus.
  • the mechanisms of transmission of the vibratory movement being arranged on the outside of the hopper, must pass through the corresponding fixed wall thereof to connect with the mobile plate, which implies a relative complexity of said mechanisms.
  • WO 95/03233 describes a hopper for bulk material supply consisting of a conical shaped container, the area whose section decreases from top to bottom, provided with an outlet opening at one end. lower.
  • the wall of said container is formed by at least one fixed rigid portion, and by at least one mobile rigid portion connected to vibrating motion generating means.
  • the devices described in the three documents mentioned above are useful for the supply of bulk, solid, compact materials, such as coal ore, gravel, etc. , which are not susceptible to damage due to blows or crushing.
  • such devices are not suitable for bulk supplying hollow, light bodies, such as plastic containers, since they are likely to be crushed by the vibratory movement of the rigid plates, or rigid portions of the tank, in combination with the waning cross-sectional area thereof, in addition to the weight of the hollow bodies themselves piled on top of each other inside the silo, especially if it has a great height.
  • the invention provides a large capacity silo, for temporary storage of hollow, light bodies, whose emptying is carried out by gravity, especially suitable for accumulating said containers, for example from a production area thereof, for a subsequent supply in the moment in which it is necessary to feed empty plastic containers, in continuous, for example to bottling lines in which said containers will undergo different operations (labeling, filling, closing, etc.).
  • This makes it possible to adapt the production characteristics of the forming machine or machines of said containers, for example injection molding machines, to the needs of the bottling lines, during their operating cycles.
  • the Said silo is provided with means to regulate slopes that delimit the bottom of the silo, or apply vibrations or shakes to said bottom to prevent the formation of "bridges" or "vaults".
  • Another object of the invention is a dispensing device adapted to deliver empty plastic containers to a conveyor belt, with a regular and controlled flow thereof, with the possibility of adapting to the size and shape characteristics of said containers.
  • Fig. 1 is a partial elevational view showing the lower area of the proposed silo, where the proposed dispensing device is installed; and Figs. 2 and 3 are elevational, schematic, illustrative views of the operation of the dispensing device that characterizes this invention.
  • the proposed silo comprises a large reservoir (1) provided at a high level with a bulk loading opening of light hollow bodies, such as empty plastic containers, and a gravity discharge opening in a lower part where a dispensing device generically indicated by the reference (5) is installed, whose device is superimposed on an output conveyor belt (3) that links with a corresponding subsequent treatment or handling line of said hollow bodies.
  • the dispensing device (5) comprises a first plate (6) and a second plate (7), articulated respectively to opposite walls of said tank (1), by a horizontal axis (6a, 7a) along on one of its sides, whose plates (6, 7) are arranged in descending inclination with respect to their articulation (6a, 7a) and with opposite slopes, the first plate (6) extending, in part, below the free edge of the second plate (7) and said plates (6, 7) being able to overlap, by their distal areas of the joint, closing the bottom of the tank (1), and / or to separate defining said discharge opening (2) of given amplitude, pre-selected depending on the size and / or shape of the containers (1).
  • the plates (6, 7) have associated thrust means (8, 9) of continuous or shaking action, so that they allow simultaneous and coordinated tilting of said plates (6, 7) to adopt different inclinations of slope, maintaining during said movements the aforementioned passage width of the discharge opening (2).
  • the silo has a fixed structure (20), of rigid bars, which constitute frames that delimit a space in the form of a rectangular parallelepiped that supports said dispensing device (5).
  • the aforementioned pushing means (8, 9) which allow adjusting the inclination of the plates (6, 7), comprise an own drive assembly associated with each of said plates (6, 7).
  • each of said own drive assemblies constituting the thrust means (8, 9) comprises a nut and spindle device (8a, 9a) driven by an associated electric motor (8b, 9b) respectively to each of said plates (6, 7) and independently controllable. It should be noted that the device would be equally operative with another type of mechanical drive, governed automatically or even manually.
  • the second plate (7) is coupled by said articulation axis (7a), to the edge cantilever of a wall (10), fixed, of downward inclination, forming a first ramp, firmly connected to said support structure (20) of the assembly.
  • Said first plate (6) has, mounted next to its free end, a wing (11), articulated by one of its sides to said first plate (6) and associated with its own thrust means (12), being capable of adopt a pre-selected inclination orientation, rising to a greater or lesser extent and being able to form a retaining wall of the containers (1), as illustrated in Fig. 3 as opposed to the outlet opening (2) thereof .
  • a wing 11
  • said first plate (6) articulated by one of its sides to said first plate (6) and associated with its own thrust means (12)
  • being capable of adopt a pre-selected inclination orientation rising to a greater or lesser extent and being able to form a retaining wall of the containers (1), as illustrated in Fig. 3 as opposed to the outlet opening (2) thereof .
  • said wing (11) is oblong and of thin profile and is disposed on the upper face of an immediate portion to the free edge of the first plate (6), distal to the joint (6a), whose portion has of passage openings for fluid dynamic cylinders constituting said pushing means (12), articulated subject to said first plate (6).
  • the inclination of the first and second plates (6, 7), and that of the wing (11), as well as the application of eventual shaking to one or more of them, will preferably be governed from a central control unit according to a sequence programmed, adapted to supply needs.

Abstract

The invention relates to a silo for the storage of light hollow bodies, with controllable discharge, comprising a large deposit (1) provided with a discharge opening (2) at the bottom part thereof, said opening being superimposed to a conveyor belt (3); the opening (2) incorporates a dispenser device (5) having first plate (6) and second plate (7) which are hinged respectively to opposite walls of said deposit (1) by means of an axis (6a, 7a), said walls being oriented in downward inclination with respect to its articulation (6a, 7a) and with opposite slopes; said plates (6, 7) overlap each other at their distal areas of the articulation, thereby closing the bottom of the deposit (1), and/or separate from each other so as to form said opening (2) of given amplitude; the plates (6, 7) are provided with pushing means (8, 9) which can be operated either continuously or by jerks; a flap (11) is mounted at the free extremity of said first plate (6), hinged along one of its sides to said plate (6) and associated to appropriate pushing means (12).

Description

SILO PARA ALMACENAMIENTO DE CUERPOS HUECOS LIGEROS CON DESCARGA REGULABLE SILO FOR STORAGE OF LIGHT BODIES WITH ADJUSTABLE DISCHARGE
CAMPO DE LA INVENCIÓNFIELD OF THE INVENTION
La presente invención concierne a un silo para almacenamiento de cuerpos huecos livianos, concebido en especial (aunque su aplicación podrá generalizarse a otros artículos) para acumular temporalmente recipientes de plástico vacíos cara a una alimentación ulterior de los mismos hacia unas líneas de tratamiento (embotellado, etiquetaje, llenado, etc) , cuyo silo es del tipo que está provisto de una abertura de carga a un nivel alto y en una parte inferior de una abertura de descarga por gravedad de los recipientes, superpuesta a una banda transportadora de salida que enlaza con una correspondiente línea ulterior de tratamiento o manipulación de dichos recipientes.The present invention concerns a silo for storage of light hollow bodies, especially conceived (although its application may be generalized to other articles) to temporarily accumulate empty plastic containers facing a subsequent feeding thereof towards treatment lines (bottling, labeling, filling, etc.), whose silo is of the type that is provided with a loading opening at a high level and in a lower part of a gravity discharge opening of the containers, superimposed on an outlet conveyor belt that links with a corresponding further line of treatment or handling of said containers.
Esta clase de cuerpos ligeros, huecos, tales como recipientes de plástico vacíos, de pared delgada, cuando se encuentran dentro de un silo de gran capacidad (por ejemplo un recinto paralelepipédico recto de 4 metros de lado por 5 de alto) provisto de una abertura de descarga en la parte inferior, son altamente propensos a formar "bóvedas" o "puentes" que impiden el flujo regular y continuado de dichos cuerpos por la correspondiente abertura de descarga. Ello es debido a que dichos cuerpos, por ejemplo recipientes, frecuentemente presentan formas irregulares y están dotados de protuberancias tales como asas, cuellos etc. , que determinan (en particular bajo las condiciones de distribución al azar y presión de los otros recipientes superpuestos) que se entrelacen entre ellos formando una especie de estructura, usualmente llamada "bóveda" o "puente", que, apoyándose contra las paredes, provoca un atasco dentro del silo, impidiendo que los recipientes implicados, y todos los que se encuentran por encima de ellos, desciendan por efecto de la gravedad hacia la parte baja del silo. ANTECEDENTES DE LA INVENCIÓNThis kind of light, hollow bodies, such as empty, thin-walled plastic containers, when they are inside a large capacity silo (for example a straight parallelepiped enclosure 4 meters side by 5 high) provided with an opening Discharge at the bottom, they are highly prone to form "vaults" or "bridges" that prevent the regular and continuous flow of said bodies through the corresponding discharge opening. This is due to the fact that said bodies, for example containers, frequently have irregular shapes and are provided with protuberances such as handles, necks, etc. , which determine (in particular under the conditions of random distribution and pressure of the other superimposed vessels) that they intertwine with each other forming a kind of structure, usually called "vault" or "bridge", which, leaning against the walls, causes a blockage inside the silo, preventing the vessels involved, and all those above them, from lowering the silo as a result of gravity. BACKGROUND OF THE INVENTION
En el estado de la técnica se han propuesto diferentes dispositivos para dar solución al problema de suministrar por gravedad otros materiales a granel mazizos, compactos, tales como carbón mineral o grava, que tengan propensión a formar bóvedas.In the state of the art, different devices have been proposed to solve the problem of gravity supplying other bulk, compact, such as mineral coal or gravel bulk materials, which have a propensity to form vaults.
Así, en los documentos US 2.905.365 y US 3.286.886 se describen unos dispositivos de suministro de materiales a granel, o tolvas, formados ambos por un recipiente de paredes fijas planas, rígidas, de sección transversal rectangular, cuya área disminuye de arriba hacia abajo, provisto de una abertura de salida en el extremo inferior. Por la parte interior de, al menos una, de dichas paredes se encuentra adosada una placa plana, rígida, conectada a unos medios para aplicar a dicha placa un movimiento vibratorio.Thus, documents 2,905,365 and US 3,286,886 describe devices for the supply of bulk materials, or hoppers, both formed by a container of flat, rigid fixed walls, of rectangular cross-section, whose area decreases from above down, provided with an outlet opening at the lower end. On the inside of at least one of said walls, a flat, rigid plate is attached, connected to means for applying a vibratory movement to said plate.
Esta disposición presenta el inconveniente de que entre la placa rígida y la pared de la tolva queda un espacio en el que tienden a introducirse y acumularse partículas de suciedad que entorpecen el funcionamiento del dispositivo, y que son difíciles de limpiar sin desmontar el aparato. Por otro lado, los mecanismos de transmisión del movimiento vibratorio, al estar dispuestos por la parte de fuera de la tolva, deben atravesar la correspondiente pared fija de la misma para conectar con la placa móvil, lo que implica una relativa complejidad de dichos mecanismos.This arrangement has the disadvantage that there is a space between the rigid plate and the wall of the hopper in which dirt particles tend to be introduced and accumulated that hinder the operation of the device, and which are difficult to clean without disassembling the apparatus. On the other hand, the mechanisms of transmission of the vibratory movement, being arranged on the outside of the hopper, must pass through the corresponding fixed wall thereof to connect with the mobile plate, which implies a relative complexity of said mechanisms.
Por otra parte, en el documento WO 95/03233 se describe una tolva para suministro de materiales a granel que consiste en un recipiente de forma troncocónica, el área de cuya sección disminuye de arriba hacia abajo, provisto de una abertura de salida en un extremo inferior. La pared de dicho recipiente está formada por, al menos, una porción rígida fija, y por, al menos, una porción rígida móvil conectada a unos medios generadores de movimiento vibratorio. Esta disposición, si bien representa una cierta simplificación de mecanismos respecto a las anteriormente mencionadas, presenta el inconveniente de que el elemento que se hace vibrar es, al menos, una porción sustancial de la pared principal del recipiente, la cual debe ser lo suficientemente fuerte, para soportar la presión del material y que por lo tanto tendrá una masa relativamente elevada, lo que implica un gran gasto energético.On the other hand, WO 95/03233 describes a hopper for bulk material supply consisting of a conical shaped container, the area whose section decreases from top to bottom, provided with an outlet opening at one end. lower. The wall of said container is formed by at least one fixed rigid portion, and by at least one mobile rigid portion connected to vibrating motion generating means. This provision, although it represents a certain simplification of mechanisms with respect to those previously mentioned, it has the disadvantage that the vibrating element is at least a substantial portion of the main wall of the container, which must be strong enough, to withstand the pressure of the material and therefore will have a mass relatively high, which implies a large energy expenditure.
Los dispositivos descritos en los tres documentos anteriormente mencionados son útiles para el suministro de materiales a granel, sólidos, compactos, como por ejemplo mineral de carbón, grava, etc. , los cuales no son susceptibles de sufrir daños por golpes o aplastamientos. Sin embargo, tales dispositivos no son aptos para suministrar a granel cuerpos huecos, ligeros, tales como recipientes de plástico, puesto que éstos son susceptibles de ser aplastados por el movimiento vibratorio de las placas rígidas, o porciones rígidas del depósito, en combinación con el área de sección transversal menguante del mismo, además de por el peso de los propios cuerpos huecos amontonados los unos encima de los otros en el interior del silo, especialmente si éste tiene una gran altura.The devices described in the three documents mentioned above are useful for the supply of bulk, solid, compact materials, such as coal ore, gravel, etc. , which are not susceptible to damage due to blows or crushing. However, such devices are not suitable for bulk supplying hollow, light bodies, such as plastic containers, since they are likely to be crushed by the vibratory movement of the rigid plates, or rigid portions of the tank, in combination with the waning cross-sectional area thereof, in addition to the weight of the hollow bodies themselves piled on top of each other inside the silo, especially if it has a great height.
BREVE EXPOSICIÓN DE LA INVENCIÓNBRIEF EXHIBITION OF THE INVENTION
La invención proporciona un silo de gran capacidad, para almacenamiento temporal de cuerpos huecos, ligeros, cuyo vaciado se realiza por gravedad, apto en especial para acumular dichos recipientes, procedentes por ejemplo de una zona de producción de los mismos, para un suministro ulterior en el momento en que se precise alimentar recipientes de plástico vacíos, en continuo, por ejemplo a unas líneas de embotellado en las que dichos recipientes sufrirán distintas operaciones (etiquetaje, llenado, cierre, etc.). Con ello es factible adaptar las características de producción de la o las máquinas formadoras de dichos recipientes, por ejemplo moldeadoras por inyección, a las necesidades de las líneas de embotellado, durante los ciclos operativos de las mismas.The invention provides a large capacity silo, for temporary storage of hollow, light bodies, whose emptying is carried out by gravity, especially suitable for accumulating said containers, for example from a production area thereof, for a subsequent supply in the moment in which it is necessary to feed empty plastic containers, in continuous, for example to bottling lines in which said containers will undergo different operations (labeling, filling, closing, etc.). This makes it possible to adapt the production characteristics of the forming machine or machines of said containers, for example injection molding machines, to the needs of the bottling lines, during their operating cycles.
Conforme a un primer objetivo de esta invención el citado silo está provisto de unos medios para regular unas pendientes que delimitan el fondo del silo, o aplicar a dicho fondo unas vibraciones o sacudidas para impedir la formación de "puentes" o "bóvedas" . Otro objetivo de la invención consiste en un dispositivo dispensador adaptado para entregar recipientes de plástico vacíos a una cinta transportadora, con un flujo regular y controlado de los mismos, con posibilidad de adaptación a las características de tamaño y forma de dichos recipientes.According to a first objective of this invention the Said silo is provided with means to regulate slopes that delimit the bottom of the silo, or apply vibrations or shakes to said bottom to prevent the formation of "bridges" or "vaults". Another object of the invention is a dispensing device adapted to deliver empty plastic containers to a conveyor belt, with a regular and controlled flow thereof, with the possibility of adapting to the size and shape characteristics of said containers.
BREVE EXPLICACIÓN DE LOS DIBUJOSBRIEF EXPLANATION OF THE DRAWINGS
Estas y otras características aparecerán con mayor claridad a partir de la siguiente descripción detallada de un ejemplo de ejecución que se aporta con una intención puramente ilustrativa, no limitativa, con relación a los dibujos adjuntos, en los cuales; la Fig. 1 es una vista en alzado, parcial que muestra la zona inferior del silo propuesto, en donde se halla instalado el dispositivo dispensador propuesto; y las Figs. 2 y 3 son sendas vistas en alzado, esquemáticas, ilustrativas de la operativa del dispositivo dispensador que caracteriza esta invención.These and other features will appear more clearly from the following detailed description of an exemplary embodiment that is provided with a purely illustrative, non-limiting intent, in relation to the accompanying drawings, in which; Fig. 1 is a partial elevational view showing the lower area of the proposed silo, where the proposed dispensing device is installed; and Figs. 2 and 3 are elevational, schematic, illustrative views of the operation of the dispensing device that characterizes this invention.
DESCRIPCIÓN EN DETALLE DE UN EJEMPLO DE REALIZACIÓN PREFERIDODETAILED DESCRIPTION OF A PREFERRED EMBODIMENT EXAMPLE
Según muestran dichos dibujos el silo que se propone comprende un amplio depósito (1) provisto en un nivel alto de una abertura de carga a granel de cuerpos huecos ligeros, tales como recipientes de plástico vacíos, y de una abertura de descarga por gravedad en una parte inferior en donde se halla instalado un dispositivo dispensador indicado genéricamente por la referencia (5) , cuyo dispositivo está superpuesto a una banda transportadora (3) de salida que enlaza con una correspondiente línea ulterior de tratamiento o manipulación de dichos cuerpos huecos. Conforme a la invención, el dispositivo dispensador (5) comprende una primera placa (6) y una segunda placa (7) , articuladas respectivamente a paredes opuestas del citado depósito (1) , por un eje horizontal (6a, 7a) a lo largo de uno de sus lados, cuyas placas (6, 7) se disponen orientadas en inclinación descendente respecto a su articulación (6a, 7a) y con pendientes opuestas, extendiéndose la primera placa (6) , en parte, por debajo del borde libre de la segunda placa (7) y siendo susceptibles dichas placas (6, 7) de solaparse, por sus zonas distales de la articulación, cerrando el fondo del depósito (1) , y/o de separarse delimitando dicha abertura de descarga (2) de amplitud dada, pre-seleccionada en función del tamaño y/o forma de los envases (1) . Tal como se aprecia en las FigS. 1 y 3 las placas (6, 7) tienen asociados unos medios de empuje (8, 9) de actuación continua o en sacudidas, de manera que facultan una basculación simultánea y coordinada de dichas placas (6, 7) para adoptar diferentes inclinaciones de talud, manteniendo durante sus desplazamientos la citada amplitud de paso de la abertura de descarga (2) .As these drawings show, the proposed silo comprises a large reservoir (1) provided at a high level with a bulk loading opening of light hollow bodies, such as empty plastic containers, and a gravity discharge opening in a lower part where a dispensing device generically indicated by the reference (5) is installed, whose device is superimposed on an output conveyor belt (3) that links with a corresponding subsequent treatment or handling line of said hollow bodies. According to the invention, the dispensing device (5) comprises a first plate (6) and a second plate (7), articulated respectively to opposite walls of said tank (1), by a horizontal axis (6a, 7a) along on one of its sides, whose plates (6, 7) are arranged in descending inclination with respect to their articulation (6a, 7a) and with opposite slopes, the first plate (6) extending, in part, below the free edge of the second plate (7) and said plates (6, 7) being able to overlap, by their distal areas of the joint, closing the bottom of the tank (1), and / or to separate defining said discharge opening (2) of given amplitude, pre-selected depending on the size and / or shape of the containers (1). As seen in FigS. 1 and 3 the plates (6, 7) have associated thrust means (8, 9) of continuous or shaking action, so that they allow simultaneous and coordinated tilting of said plates (6, 7) to adopt different inclinations of slope, maintaining during said movements the aforementioned passage width of the discharge opening (2).
El silo comporta una estructura fija (20) , de barras rígidas, que constituyen unos marcos que delimitan un espacio en forma de paralelepípedo rectángulo que soporta al citado dispositivo dispensador (5) . Los citados medios de empuje (8, 9) que permiten ajustar la inclinación de las placas (6, 7) , comprenden un conjunto de accionamiento propio asociado a cada una de dichas placas (6, 7) . En la realización ilustrada en los dibujos cada uno de dichos conjuntos de accionamiento propio constitutivo de los medios de empuje (8, 9) comprende un dispositivo de tuerca y husillo (8a, 9a) accionado por un motor eléctrico (8b, 9b) asociados respectivamente a cada una de dichas placas (6, 7) y controlables de modo independiente. Ha de destacarse que el dispositivo sería igualmente operativo con otro tipo de accionamiento mecánico, gobernado automática o incluso manualmente.The silo has a fixed structure (20), of rigid bars, which constitute frames that delimit a space in the form of a rectangular parallelepiped that supports said dispensing device (5). The aforementioned pushing means (8, 9) which allow adjusting the inclination of the plates (6, 7), comprise an own drive assembly associated with each of said plates (6, 7). In the embodiment illustrated in the drawings each of said own drive assemblies constituting the thrust means (8, 9) comprises a nut and spindle device (8a, 9a) driven by an associated electric motor (8b, 9b) respectively to each of said plates (6, 7) and independently controllable. It should be noted that the device would be equally operative with another type of mechanical drive, governed automatically or even manually.
Tal como muestra la Fig. 1, la segunda placa (7) está acoplada por el citado eje de articulación (7a) , al borde en voladizo de una pared (10) , fija, de inclinación descendente, formando una primera rampa, firmemente unida a dicha estructura (20) de soporte del conjunto.As shown in Fig. 1, the second plate (7) is coupled by said articulation axis (7a), to the edge cantilever of a wall (10), fixed, of downward inclination, forming a first ramp, firmly connected to said support structure (20) of the assembly.
La citada primera placa (6) dispone, montada junto a su extremo libre, un ala (11) , articulada por uno de sus lados a dicha primera placa (6) y asociada a unos medios de empuje propios (12) , siendo susceptible de adoptar una orientación de inclinación pre-seleccionada, alzándose en mayor o menor medida y pudiendo formar una pared retenedora de los envases (1) , tal como se ilustra en la Fig. 3 en oposición a la abertura (2) de salida de los mismos. Con ello se facilitan las operaciones de cierre de la abertura de descarga del silo.Said first plate (6) has, mounted next to its free end, a wing (11), articulated by one of its sides to said first plate (6) and associated with its own thrust means (12), being capable of adopt a pre-selected inclination orientation, rising to a greater or lesser extent and being able to form a retaining wall of the containers (1), as illustrated in Fig. 3 as opposed to the outlet opening (2) thereof . This facilitates the closing operations of the silo discharge opening.
En una ejecución preferida la citada ala (11) es oblonga y de perfil delgado y se dispone adosada sobre la cara superior de una porción inmediata al borde libre de la primera placa (6) , distal a la articulación (6a) , cuya porción dispone de unas aberturas de paso para unos cilindros fluidodinámicos constitutivos de dichos medios de empuje (12) , sujetos articuladamente a dicha primera placa (6).In a preferred embodiment, said wing (11) is oblong and of thin profile and is disposed on the upper face of an immediate portion to the free edge of the first plate (6), distal to the joint (6a), whose portion has of passage openings for fluid dynamic cylinders constituting said pushing means (12), articulated subject to said first plate (6).
La inclinación de las primera y segunda placas (6, 7), y la del ala (11) , así como la aplicación de unas eventuales sacudidas a una o más de las mismas, se gobernarán preferentemente desde una unidad de control central según una secuencia programada, adaptada a las necesidades de suministro. The inclination of the first and second plates (6, 7), and that of the wing (11), as well as the application of eventual shaking to one or more of them, will preferably be governed from a central control unit according to a sequence programmed, adapted to supply needs.

Claims

REIVINDICACIONES 1.- Silo para almacenamiento de cuerpos huecos ligeros con descarga regulable, en particular aplicable a recipientes de plástico vacíos (4) , del tipo que comprende un amplio depósito (1) provisto de una abertura de descarga (2) en una parte inferior, superpuesta a una banda transportadora (3) de salida, caracterizado porque dicha abertura de descarga (2) integra un dispositivo dispensador (5) , el cual comprende al menos una primera placa (6) y una segunda placa (7) , articuladas respectivamente a paredes opuestas de dicho depósito (1) , por un eje horizontal (6a, 7a) a lo largo de uno de sus lados, cuyas placas (6, 7) se disponen orientadas en inclinación descendente respecto a su articulación (6a, 7a) y con pendientes opuestas, extendiéndose la primera placa (6) , al menos en parte, por debajo del borde libre de la segunda placa (7) y siendo susceptibles dichas placas (6, 7) de solaparse, por sus zonas distales de la articulación, cerrando el fondo del depósito (1) , y/o de separarse delimitando dicha abertura de descarga (2) de amplitud dada, pre-seleccionada en función del tamaño y/o forma de los envases (1) , teniendo asociadas las placas (6, 7) unos medios de empuje (8, 9) de actuación continua o en sacudidas, de manera que facultan una basculación simultánea y coordinada de las placas (6, 7) para adoptar diferentes inclinaciones de talud, manteniendo durante sus desplazamientos la citada amplitud de paso de la abertura de descarga (2) .CLAIMS 1.- Silo for storage of light hollow bodies with adjustable discharge, particularly applicable to empty plastic containers (4), of the type comprising a large tank (1) provided with a discharge opening (2) in a lower part , superimposed on an output conveyor belt (3), characterized in that said discharge opening (2) integrates a dispensing device (5), which comprises at least a first plate (6) and a second plate (7), articulated respectively to opposite walls of said tank (1), along a horizontal axis (6a, 7a) along one of its sides, whose plates (6, 7) are arranged oriented in descending inclination with respect to their articulation (6a, 7a) and with opposite slopes, the first plate (6) extending, at least in part, below the free edge of the second plate (7) and said plates (6, 7) being able to overlap, by their distal areas of the joint , closing the bottom of the deposit site (1), and / or separating delimiting said discharge opening (2) of given amplitude, pre-selected according to the size and / or shape of the containers (1), the plates (6, 7) having associated pushing means (8, 9) of continuous or shaking action, so that they allow simultaneous and coordinated tilting of the plates (6, 7) to adopt different slope inclinations, maintaining during said movements the aforementioned step width of the discharge opening (2).
2.- Silo, según la reivindicación 1, caracterizado por comprender una estructura fija (20) , de barras (21) rígidas, que constituyen unos marcos (22) que delimitan un espacio en forma de paralelepípedo rectángulo que soportan al citado dispositivo dispensador (5) .2. Silo according to claim 1, characterized by comprising a fixed structure (20), of rigid bars (21), which constitute frames (22) that delimit a space in the form of a rectangular parallelepiped that supports said dispensing device ( 5) .
3.- Silo, según la reivindicación 2, caracterizado porque dicha segunda placa (7) está acoplada, por el citado eje de articulación (7a) , al borde en voladizo de una pared (10) , fija, de inclinación descendente, unida a dicha estructura (20) de soporte del conjunto.3. Silo according to claim 2, characterized in that said second plate (7) is coupled, by said articulation axis (7a), to the cantilever edge of a wall (10), fixed, with downward inclination, joined to said support structure (20) of the assembly.
4.- Silo, según una cualquiera de las reivindicaciones anteriores, caracterizado porque dichos medios de empuje (8, 9) que permiten ajustar la inclinación de las placas (6, 7) , comprenden un conjunto de accionamiento propio asociado a cada una de dichas placas (6, 7) . 4.- Silo according to any one of the claims above, characterized in that said thrust means (8, 9) which allow adjusting the inclination of the plates (6, 7), comprise their own drive assembly associated with each of said plates (6, 7).
5.- Silo, según la reivindicación 4, caracterizado porque cada uno de los conjuntos de accionamiento propio constitutivo de los medios de empuje (8, 9) comprende un dispositivo de tuerca y husillo (8a, 9a) accionado por un motor eléctrico (8b, 9b) asociados respectivamente a cada una de dichas placas (6, 7) y controlables de modo independiente.5. Silo according to claim 4, characterized in that each of the own drive assemblies constituting the thrust means (8, 9) comprises a nut and spindle device (8a, 9a) driven by an electric motor (8b , 9b) associated respectively to each of said plates (6, 7) and independently controllable.
6.- Silo, según una de las reivindicaciones anteriores, caracterizado porque al menos la citada primera placa (6) dispone, montada junto a su extremo libre, un ala (11) , articulada por uno de sus lados a dicha primera placa (6) y asociada a unos medios de empuje propios (12) , siendo susceptible de adoptar una orientación de inclinación pre- seleccionada, alzándose en mayor o menor medida y pudiendo formar una pared retenedora de los envases (1) en oposición a la abertura (2) de salida de los mismos.6. Silo, according to one of the preceding claims, characterized in that at least said first plate (6) has, mounted next to its free end, a wing (11), articulated by one of its sides to said first plate (6 ) and associated with its own thrust means (12), being capable of adopting a pre-selected inclination orientation, rising to a greater or lesser extent and being able to form a retaining wall of the containers (1) as opposed to the opening (2 ) out of them.
7.- Silo, según la reivindicación 6, caracterizado porque dicha ala (11) es oblonga y de perfil delgado y se dispone adosada sobre la cara superior de una porción inmediata al borde libre de la primera placa (6) , distal a la articulación (6a) , cuya porción dispone de unas aberturas de paso para unos cilindros fluidodinámicos constitutivos de dichos medios de empuje (12) , sujetos articuladamente a dicha primera placa (6) .7. Silo according to claim 6, characterized in that said wing (11) is oblong and of thin profile and is disposed on the upper face of an immediate portion to the free edge of the first plate (6), distal to the joint (6a), the portion of which has passage openings for fluid dynamic cylinders constituting said thrust means (12), articulated subject to said first plate (6).
8.- Silo según una cualquiera de las reivindicaciones anteriores, caracterizado porque la inclinación de las primera y segunda placas (6, 7) , y la del ala (11) , así como la aplicación de unas eventuales sacudidas a una o más de las mismas, se gobiernan desde una unidad de control central según una secuencia programada. 8. Silo according to any one of the preceding claims, characterized in that the inclination of the first and second plates (6, 7), and that of the wing (11), as well as the application of eventual shaking to one or more of the they are governed from a central control unit according to a programmed sequence.
PCT/ES1998/000230 1998-08-11 1998-08-12 Silo for storing light hollow bodies with controllable discharge WO2000009424A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
PCT/ES1998/000230 WO2000009424A1 (en) 1998-08-12 1998-08-12 Silo for storing light hollow bodies with controllable discharge
AT99940206T ATE238209T1 (en) 1998-08-11 1999-08-11 SILO FOR STORAGE AND CONTROLLED SUPPLY OF LIGHT, HOLLOW VESSELS AND METHOD FOR USE THEREOF
US09/762,883 US6457610B1 (en) 1998-08-11 1999-08-11 Silo for storing and controlled supply of empty light containers, and method for using such silo
CA002339957A CA2339957C (en) 1998-08-11 1999-08-11 Silo for storing and controlled supply of empty light containers, and method for using such silo
EP99940206A EP1106534B1 (en) 1998-08-11 1999-08-11 Silo for storing and controlled supply of empty light containers, and method for using such silo
DK99940206T DK1106534T3 (en) 1998-08-11 1999-08-11 Silo for storage and controlled discharge of empty, lightweight containers and method for using such silo
PT99940206T PT1106534E (en) 1998-08-11 1999-08-11 SILO FOR STORAGE AND CONTROLLED SUPPLY OF EMPTY LIGHT CONTAINERS AND METHOD FOR USING TAL SILO
DE69907217T DE69907217T2 (en) 1998-08-11 1999-08-11 SILO FOR STORAGE AND REGULATED SUPPLY OF LIGHT, HOLLOW VESSELS AND METHOD FOR USE THEREOF
BR9912894-2A BR9912894A (en) 1998-08-11 1999-08-11 Silo for controlled storage and supply of empty light containers and method for their use
ES99940206T ES2197664T3 (en) 1998-08-11 1999-08-11 SILO FOR STORAGE AND REGULATED SUPPLY OF EMPTY LIGHT PACKAGES, AND METHOD FOR USE.
AU54234/99A AU760104B2 (en) 1998-08-11 1999-08-11 Silo for storing and controlled supply of empty light containers, and method for using such silo
CNB998111872A CN1151051C (en) 1998-08-11 1999-08-11 Silo for storing and controlled supply of empty light containers, and method for using such silo
PCT/ES1999/000262 WO2000009425A2 (en) 1998-08-11 1999-08-11 Silo for storing and controlled supply of empty light containers, and method for using such silo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES1998/000230 WO2000009424A1 (en) 1998-08-12 1998-08-12 Silo for storing light hollow bodies with controllable discharge

Publications (1)

Publication Number Publication Date
WO2000009424A1 true WO2000009424A1 (en) 2000-02-24

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WO (1) WO2000009424A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB620231A (en) * 1947-01-10 1949-03-22 Unilever Ltd An improved silo for pulverulent materials
US3125254A (en) * 1964-03-17 Hopper and closure gate
DE2159556A1 (en) * 1971-12-01 1973-06-07 Sieg Kg INLET FUNNEL
DE2425508A1 (en) * 1974-05-27 1975-12-04 Braunschweigische Masch Bau Beet loading bunker - has movable floor varying outlet size and position in relation to discharge trough
WO1996030727A1 (en) * 1995-03-31 1996-10-03 Skarhar, Inc. Discharge chute for non-flowable bulk materials
US5687881A (en) * 1995-10-18 1997-11-18 Bandag, Incorporated Apparatus for conveying a solid particular material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125254A (en) * 1964-03-17 Hopper and closure gate
GB620231A (en) * 1947-01-10 1949-03-22 Unilever Ltd An improved silo for pulverulent materials
DE2159556A1 (en) * 1971-12-01 1973-06-07 Sieg Kg INLET FUNNEL
DE2425508A1 (en) * 1974-05-27 1975-12-04 Braunschweigische Masch Bau Beet loading bunker - has movable floor varying outlet size and position in relation to discharge trough
WO1996030727A1 (en) * 1995-03-31 1996-10-03 Skarhar, Inc. Discharge chute for non-flowable bulk materials
US5687881A (en) * 1995-10-18 1997-11-18 Bandag, Incorporated Apparatus for conveying a solid particular material

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