ES2281279A1 - Method for forming the lower surface of a container without the application of heat in a vacuum packaging process - Google Patents
Method for forming the lower surface of a container without the application of heat in a vacuum packaging process Download PDFInfo
- Publication number
- ES2281279A1 ES2281279A1 ES200600213A ES200600213A ES2281279A1 ES 2281279 A1 ES2281279 A1 ES 2281279A1 ES 200600213 A ES200600213 A ES 200600213A ES 200600213 A ES200600213 A ES 200600213A ES 2281279 A1 ES2281279 A1 ES 2281279A1
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- Prior art keywords
- container
- sheet
- shaping
- vacuum packaging
- packaging process
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000009461 vacuum packaging Methods 0.000 title claims description 18
- 238000007493 shaping process Methods 0.000 claims abstract description 17
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000004904 shortening Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 239000002650 laminated plastic Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 8
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/50—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
- B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
- B65B9/045—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for single articles, e.g. tablets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
- B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Packages (AREA)
Abstract
Description
Procedimiento para conformar la superficie inferior de un envase sin aplicación de calor en un proceso de envasado al vacío.Procedure for shaping the surface bottom of a container without heat application in a process of vacuum packed.
La presente solicitud de Patente de Invención consiste conforme indica su enunciado en un "Procedimiento para conformar la superficie inferior de un envase sin aplicación de calor en un proceso de envasado al vacío", cuyas nuevas características de construcción, conformación y diseño, cumplen la misión para la que específicamente ha sido diseñado con una seguridad y eficacia máximas.The present invention patent application consists as indicated in a "Procedure for form the bottom surface of a container without application of heat in a vacuum packaging process ", whose new construction, conformation and design characteristics, meet the mission for which it has been specifically designed with a maximum safety and effectiveness.
Más concretamente la invención se refiere a un procedimiento para adaptar la geometría de la superficie inferior de un envase al propio producto sin aplicación de calor a partir de una lámina inferior de plástico delgado provinente de una bobina, formando el mismo parte de un proceso automatizado de envasado al vacío con uno o varios productos dentro de envolturas de plástico delgadas, cuya finalidad primordial es minimizar los costes de fabricación del envase a la vez que se consigue eliminar una de las etapas del proceso de conformado.More specifically the invention relates to a procedure to adapt the bottom surface geometry from a container to the product itself without heat application from a thin plastic bottom sheet from a coil, forming the same part of an automated packaging process at empty with one or more products inside plastic wrap thin, whose primary purpose is to minimize the costs of manufacture of the container while eliminating one of the stages of the forming process.
El presente procedimiento está proyectado especialmente para envases formados por láminas de plástico flexibles y retráctiles, y no para láminas metálicas, alumínicas o rígidas.The present procedure is planned especially for containers formed by plastic sheets flexible and retractable, and not for sheet metal, aluminum or rigid.
El proceso de fabricación automatizado convencional en serie de un envase al vacío a partir de dos láminas distintas consiste en varias etapas sucesivas, en la primera de ellas se conforma por calor la superficie inferior del envase en un molde, de superficie generalmente cóncava, seguidamente se introduce el producto en la concavidad de dicha lámina, se cubre el producto con una lámina superior, se realiza el vacío en el interior de ambas láminas y finalmente se cierra el envase mediante una soldadura en todo el borde perimetral.The automated manufacturing process Conventional series of a vacuum container from two sheets different consists of several successive stages, in the first of they heat the bottom surface of the container in a mold, generally concave surface, then introduce the product into the concavity of said sheet, cover the product with a top sheet, the vacuum is performed in the inside of both sheets and finally the container is closed by a weld on the entire perimeter edge.
Por lo general, en la actualidad existen distintos procedimientos utilizados para la conformación de la superficie inferior de un envase fabricado a partir de dos láminas distintas, los cuales permiten colocar una lámina delgada de plástico provinente de una bobina en la superficie interior de una matriz sensiblemente cóncava. De todos los procedimientos conocidos, el más extendido es el termoformado, el cual utiliza una fuente de calor para calentar el plástico de la lámina inferior hasta su temperatura de reblandecimiento y luego hace el vacío en el hueco entre el molde y la lámina, dispuesta horizontalmente sobre el molde, de manera que la misma se estira, aumentando su longitud, merced a sus propiedades en estado semi-plástico y así se pueda adaptar perfectamente a la superficie cóncava del molde. A continuación, se debe esperar a que la superficie conformada se enfrié para poderla extraer del molde.Usually, there are currently different procedures used to form the Bottom surface of a container made from two sheets different, which allow to place a thin sheet of plastic from a coil on the inside surface of a noticeably concave matrix. Of all procedures known, the most widespread is thermoforming, which uses a heat source to heat the plastic of the bottom sheet until its softening temperature and then it empties in the gap between the mold and the sheet, arranged horizontally on the mold, so that it stretches, increasing its length, thanks to its properties in state semi-plastic and so it can adapt perfectly to the concave surface of the mold. Then you must wait that the shaped surface cooled to be able to extract it from the mold.
Alternativamente, se puede aplicar presión sobre la lámina en vez de realizar el vacío, y también combinarse ambas técnicas para conformar por moldeo la superficie inferior del envase.Alternatively, pressure can be applied on the sheet instead of performing the vacuum, and also combine both techniques for shaping the bottom surface of the container.
Sin embargo, dicha técnica presenta algunos inconvenientes, principalmente debido al estirado de la lámina. Por un lado al tener que estirar el plástico la lámina de entrada debe tener un mayor grosor que la lámina final, lo cual encarece notablemente la materia prima del envase, y por otro al estirarse la lámina se adelgaza en zonas no deseadas y puede producir imperfecciones que disminuyen la calidad del envase final.However, this technique presents some inconveniences, mainly due to the stretching of the sheet. By one side when having to stretch the plastic the entrance sheet must be thicker than the final sheet, which makes it more expensive notably the raw material of the container, and on the other when stretched the sheet thins in unwanted areas and can produce imperfections that decrease the quality of the final container.
Para solventar las desventajas anteriores se han desarrollado técnicas de pre-estirado por diversos medios, tales como las que utilizan un punzón o por soplado previo, para obtener una mayor regularidad en el espesor de la lámina antes del proceso de termoformado, pero aún existen pérdidas de materia prima y energéticas importantes.To solve the above disadvantages have been developed pre-stretch techniques by various means, such as those that use a punch or blow prior, to obtain a greater regularity in the thickness of the sheet before the thermoforming process, but there are still losses of important raw material and energy.
La presente invención en uno de sus perfeccionamientos pretende solventar los inconvenientes arriba expuestos, merced a la eliminación de la aplicación de temperatura y del estirado o pre-estirado de la lámina inferior en la etapa de conformación de la superficie inferior del envase, con lo que se consigue abaratar los costes de fabricación del envase y aumentar su calidad.The present invention in one of its improvements aims to solve the problems above exposed, thanks to the elimination of the application of temperature and of the stretching or pre-stretching of the bottom sheet at the stage of shaping the bottom surface of the container, which means that the manufacturing costs of the container and increase its quality.
Para lograr estas funciones se ha ideado un procedimiento ventajoso que consiste principalmente en acortar la anchura de la lámina inferior con respecto a las anchura inicial de la lámina enrollada en la bobina antes de entrar dicha lámina en el sistema de arrastre, formado el mismo por dos cadenas paralelas separadas una cierta distancia y dispuestas transversalmente unas varillas, de manera que una vez la lámina estrechada se coloca en el citado sistema de arrastre, sujetándola longitudinalmente a las cadenas mediante unos medios de sujeción y transversalmente mediante dos varillas longitudinales, al posicionar el producto sobre la lámina debido a su propio peso, la misma se despliega y adquiere la concavidad necesaria del envase.To achieve these functions, a advantageous procedure that consists mainly in shortening the width of the bottom sheet with respect to the initial width of the rolled sheet in the coil before entering said sheet into the drag system, formed by two parallel chains separated a certain distance and arranged transversely rods, so that once the narrowed sheet is placed in said drag system, subjecting it longitudinally to the chains by means of fastening means and transversely by two longitudinal rods, when positioning the product on the sheet due to its own weight, it unfolds and acquires the necessary concavity of the container.
Opcionalmente, se pueden incorporar medios de ayuda para el conformado de la superficie inferior del envase, tales como la aplicación de fuerza mediante un pistón o bien por soplado o aspiración de aire.Optionally, means of support for shaping the bottom surface of the container, such as the application of force by a piston or by blowing or air intake.
Así, el procedimiento objeto de la presente invención incluye los procesos de:Thus, the procedure object of the present invention includes the processes of:
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- Estrechamiento de la anchura de la lámina inferior por cualquier medio conocido, tales como pliegues o dobladuras.Narrowing of the width of the bottom sheet by any known means, such as folds or bends
\newpage\ newpage
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- Posicionamiento de dicha lámina estrechada en el sistema de arrastre, sujetándola a las dos cadenas con unos medios de sujeción y transversalmente con dos varillas.Positioning of said sheet narrowed in the drag system, holding it to the two chains with fastening means and transversely with two rods
- --
- Conformado de la superficie inferior del envase al introducir el producto sobre la lámina estrechada y con el auxilio de medios de bufado/aspiración y/o de presión.Forming the lower surface of the container when introducing the product on the narrowed sheet and with the aid of snorting / suction and / or pressure means.
Preferentemente, los medios para acortar la anchura de la lámina inferior antes de entrar en el sistema de arrastre por cadenas son mediante la creación de una serie de dobladuras o pliegues, sin embargo puede ser cualquier otro sistema equivalente que permita la disminución de la citada anchura sin que ello altere la esencia de la invención.Preferably, the means for shortening the width of the bottom sheet before entering the system chain dragging are by creating a series of bends or folds, however it can be any other system equivalent that allows the decrease of said width without this alters the essence of the invention.
La distancia entre las cadenas del sistema de arrastre irá en función del valor de la anchura del envase final, y será sensiblemente igual a la anchura del citado envase final.The distance between the system chains drag will depend on the value of the width of the final container, and It will be substantially equal to the width of said final container.
Preferentemente, los medios de sujeción de la lámina al sistema de arrastre por cadenas son pinzas, y dependiendo de las dimensiones del envase a fabricar el número de las mismas variará.Preferably, the fastening means of the sheet to the chain drag system are tweezers, and depending of the dimensions of the container to be manufactured the number of them will vary.
De esta manera, los medios de sujeción a las cadenas enganchan en las dos bases longitudinales de la lámina inferior estrechada y sujetan la misma tensada a la cadena de arrastre, mientras que las dos varillas sujetan la citada lámina por las dos bases transversales, a la vez que hacen de separación de cada uno de los envases en serie.In this way, the means of attachment to the chains hook on the two longitudinal bases of the blade narrowed bottom and fasten the same tensioned to the chain of drag, while the two rods hold the aforementioned sheet by the two transverse bases, while also separating of each of the packages in series.
Convenientemente, se prevén dos varillas para sujetar transversalmente a las dos cadenas la lámina inferior estrechada, disponiéndose las varillas separadas una distancia tal según sean las dimensiones del envase a fabricar, sensiblemente igual a la largura del envase final. La ubicación de las varillas en el sistema de arrastre es fija, ya que cada sistema de arrastre se diseña exclusivamente para un envase determinado; sin embargo, se prevé la posibilidad de prescindir de una de cada dos varillas, de manera que la distancia entre varillas es el doble y el envase fabricado tendrá la misma anchura y el doble de largura, con lo que un mismo sistema de arrastre puede conformar dos envases de distinto tamaño.Conveniently, two rods are provided for hold the lower sheet transversely to the two chains narrowed, the rods being arranged a distance such according to the dimensions of the container to be manufactured, substantially equal to the length of the final container. The location of the rods in the drag system it is fixed, since each drag system It is designed exclusively for a given container; but nevertheless, the possibility of dispensing with one of every two rods is foreseen, so that the distance between rods is double and the container manufactured will have the same width and twice the length, so the same drag system can form two containers of different size
Adicionalmente, se prevén unos medios de apoyo en la parte inferior de la cadena de arrastre, tales como unos rodillos o una superficie horizontal, para que al introducir el producto y conformar la concavidad de la lámina inferior el mismo se asiente encima del citado apoyo, para así evitar que la lámina se tense demasiado.Additionally, support means are provided at the bottom of the drag chain, such as ones rollers or a horizontal surface, so that when introducing the product and form the concavity of the bottom sheet the same will seat above the mentioned support, in order to prevent the sheet from Tense too much.
El procedimiento preconizado puede ser usado para la fabricación de un única cavidad por cada envase, tal y como se ha detallado anteriormente, o bien para la fabricación de múltiples cavidades por cada envase, conocidos como envases "pack", los cuales son habituales en los procesos automatizados con grandes series, y utilizan una sola lámina inferior y superior para fabricar de una sola vez diversas cavidades, y posteriormente se pueden troquelar para obtener envases individuales.The recommended procedure can be used for the manufacture of a single cavity for each container, as has been detailed above, or for the manufacture of multiple cavities for each container, known as containers "pack", which are common in processes automated with large series, and use a single sheet Bottom and top to manufacture diverse at once cavities, and later they can be punched to obtain individual containers
Para realizar este tipo de envases se utiliza el mismo procedimiento de acortar la anchura de la lámina inferior, sujetarla al sistema de arrastre por sus cuatro bases y aprovechar el peso del producto para desplegar la lámina, con la particularidad de que se disponen uno o más separadores intermedios dispuestos paralelos a las cadenas con medios de sujeción a ambos lados, de manera que la lámina se sujeta longitudinalmente por más de dos bases.To make this type of packaging the same procedure to shorten the width of the bottom sheet, hold it to the drag system by its four bases and take advantage the weight of the product to unfold the sheet, with the particularity that one or more intermediate separators are arranged arranged parallel to the chains with fastening means to both sides, so that the sheet is held longitudinally for more of two bases.
Especialmente, el presente procedimiento se utiliza en procesos de envasado con etapas de retractilado final o pre-retractilado de las láminas.Especially, the present procedure is used in packaging processes with final shrink wrapping stages or pre-shrinking of the sheets.
La solución de eliminar la etapa de conformado por calor permite solventar los problemas asociados al estiramiento del plástico, y también reduce costes de fabricación del envase, puesto que no se requiere una galga de plástico más gruesa que la lámina final y se eliminan los costes asociados a la generación de calor; y además al no requerir de un molde fijo el sistema ofrece una mayor versatilidad.The solution of eliminating the forming stage by heat it allows to solve the problems associated with stretching of plastic, and also reduces container manufacturing costs, since a thicker plastic gauge is not required than the final sheet and the costs associated with the generation of hot; and also by not requiring a fixed mold the system offers Greater versatility
Otros detalles y características se irán poniendo de manifiesto en el transcurso de la descripción, que a continuación se da, en los que se hace referencia a los dibujos que a esta memoria se acompaña en la que se representan las distintas partes del procedimiento, a título ilustrativo pero no limitativo de la invención.Other details and features will go away showing in the course of the description that given below, in which reference is made to the drawings that this memory is accompanied in which the different parts of the procedure, by way of illustration but not limitation of the invention.
Sigue a continuación una relación numerada de las partes principales del procedimiento preconizado que se indican con números en las figuras anexas;Follow a numbered relationship of the main parts of the recommended procedure indicated with numbers in the attached figures;
- (10)(10)
- - Bobina inferior;- Bottom coil;
- (11)(eleven)
- - Lámina inferior;- Bottom sheet;
- (12)(12)
- - Lámina superior;- Top sheet;
- (13)(13)
- - Lámina inferior estrechada;- Narrowed lower sheet;
- (14)(14)
- - Pliegue longitudinal;- Longitudinal fold;
- (15)(fifteen)
- - Producto;- Product;
- (16)(16)
- - Pinces;- Tweezers;
- (17)(17)
- - Cadena;- Chain;
- (18)(18)
- - Bobina superior;- Top coil;
- (19)(19)
- - Superficie cóncava de (27);- Concave surface of (27);
- (20)(twenty)
- - Varillas transversales;- Cross rods;
- (21)(twenty-one)
- - Estación de desenrollado;- Unwinding station;
- (22)(22)
- - Estación de estrechamiento de la lámina inferior (11);- Narrowing station of the lower sheet (11);
- (23)(2. 3)
- - Estación de posicionamiento de lámina estrechada (13) en el sistema de arrastre;- Narrow-sheet positioning station (13) in the system drag
- (24)(24)
- - Estación de introducción del producto (15) y conformación de superficie inferior (19) del envase (27);.- Product introduction station (15) and conformation of bottom surface (19) of the container (27) ;.
- (25)(25)
- - Estación de posicionamiento de la lámina superior (12);- Top sheet positioning station (12);
- (26)(26)
- - Estación de vacío y soldadura del contorno (28) ;- Vacuum station and contour welding (28);
- (27)(27)
- - Envase;- Container;
- (28)(28)
- - Contorno del (27);- Contour of (27);
- (29)(29)
- - Base transversal de (13);- Transverse base of (13);
- (30)(30)
- - Base longitudinal de (13);- Longitudinal base of (13);
- (31)(31)
- - Anchura de (11);- Width of (11);
- (32)(32)
- - Banda soldada;- Welded band;
- (33)(33)
- - Dispositivo de bufado;- Snorting device;
- (34)(3. 4)
- - Rodillos de apoyo;- Support rollers;
- (35)(35)
- - Lámina inferior desplegada;- Lower sheet deployed;
- (36)(36)
- - Separador intermedio; y- Intermediate separator; Y
- (37)(37)
- - Cavidad.- Cavity.
La figura nº 1 es una vista en planta de un esquema del proceso de envasado al vacío de un producto (15) a partir de dos láminas distintas, según lo que es el objeto de la invención.Figure 1 is a plan view of a scheme of the vacuum packaging process of a product (15) a from two different sheets, depending on what is the purpose of the invention.
La figura nº 2 es una vista en alzado frontal de un esquema del proceso de envasado al vacío de un producto (15) a partir de dos láminas distintas, según lo que es el objeto de la invención.Figure 2 is a front elevation view of a scheme of the vacuum packaging process of a product (15) to from two different sheets, depending on what is the purpose of the invention.
Las figuras nº 3-6 son vistas en alzado lateral de las etapas sucesivas de adaptación de la lámina inferior estrechada (13) sostenida tensada por el sistema de arrastre hasta alcanzar la concavidad de la superficie inferior (19) del envase (27), según lo que es el objeto de la invención.Figures 3-6 are seen in lateral elevation of the successive stages of adaptation of the sheet narrowed bottom (13) held tensioned by the system drag until the concavity of the lower surface is reached (19) of the container (27), according to what is the object of the invention.
La figura nº 7 es una vista en planta de un esquema del proceso de envasado al vacío a partir de dos láminas distintas para obtener un envase tipo "pack" con dos cavidades (37), según lo que es el objeto de la invención.Figure 7 is a plan view of a Vacuum packaging process scheme from two sheets different to obtain a "pack" type container with two cavities (37), according to what is the object of the invention.
Tal y como puede verse en las figuras nº 1 y 2, el proceso automatizado de envasado al vacío de un producto (15) a partir de dos láminas distintas consta de distintas etapas sucesivas, primeramente la lámina inferior (11) se desenrolla (21) de la bobina inferior (10), seguidamente la misma entra en la estación estrechamiento de la lámina (22) donde se acorta su anchura (31) hasta una anchura (29) mediante un pliegue longitudinal central (14), luego la lámina inferior estrechada (13) entra en el sistema de arrastre (23), sujetándose en posición tensada a las dos cadenas (17) a través de varias pinzas (16) y transversalmente con dos varillas (20), a continuación se procede a introducir el producto (15) por la parte superior con lo que la lámina estrechada (13) se despliega o desdobla merced a la fuerza de su propio peso (24) hasta conformar la lámina desplegada (35), la cual presenta una superficie cóncava (19) debido al apoyo del producto (15).As can be seen in figures 1 and 2, the automated vacuum packaging process of a product (15) to from two different sheets consists of different stages successively, first the bottom sheet (11) is unwound (21) of the lower coil (10), then it enters the sheet narrowing station (22) where its width (31) to a width (29) by a fold central longitudinal (14), then the narrowed lower sheet (13) enters the drive system (23), holding in position tensioned to the two chains (17) through several clamps (16) and transversely with two rods (20), then proceed to introduce the product (15) at the top so that the narrowed sheet (13) unfolds or unfolds thanks to force of its own weight (24) until forming the unfolded sheet (35), the which has a concave surface (19) due to the support of the product (15).
Adicionalmente, se puede aplicar otros medios de ayuda como la aplicación de presión o el proceso de bufado para facilitar el despliegue de la lámina (13). Seguidamente se posiciona (25) la lámina superior (12) provinente de la bobina superior (18) sobre el producto (15), ver figura nº 2, y finalmente se llega a la estación de soldado (26) en donde se cierra el contorno del envase (28) mediante cuatro bandas soldadas (32), una por lado. De esta manera, el envase (27) tendrá una configuración prismática de base sensiblemente rectangular.Additionally, other means of help such as pressure application or the snorting process to facilitate the deployment of the sheet (13). Then it position (25) the top sheet (12) from the coil top (18) on the product (15), see figure 2, and finally you arrive at the soldier station (26) where the contour of the container (28) by four welded bands (32), one per side. In this way, the container (27) will have a configuration prismatic base substantially rectangular.
En la figura nº 2 se pueden apreciar los rodillos de apoyo (34) en la parte inferior de las cadenas (17) para soportar el peso del producto (15), y por otro lado se muestra como la lámina inferior se apoya por sus bases transversales (29) a las varillas (20), de configuración cilíndrica, conduciendo la lámina por la parte superior de las mismas.In figure 2 you can see the support rollers (34) at the bottom of the chains (17) to support the weight of the product (15), and on the other hand it is shown as the bottom sheet is supported by its transverse bases (29) to the rods (20), cylindrical configuration, driving the sheet on top of them.
En la presente realización de lo que es el objeto de la invención el envase (27) obtenido por el procedimiento preconizado presenta una configuración prismática de base rectangular, ver figura nº 1, sin embargo, también se contempla la posibilidad de realizar envases con otras formas, por ejemplo de base elíptica, con lo que en vez de realizar cuatro bandas soldadas (32) se realizaría una de sola resiguiendo el contorno perimetral del envase (27).In the present embodiment of what is the object of the invention the container (27) obtained by the process Recommended features a basic prismatic configuration rectangular, see figure 1, however, the possibility of making packages with other forms, for example of elliptical base, so instead of making four welded bands (32) one would be done by following the perimeter contour of the container (27).
En las figuras nº 3-6 se observan los pasos sucesivos de despliegue de la lámina (13) desde que está sujetada de forma tensada al sistema de arrastre por medio de varias pinzas (16), ver figura nº 3, hasta que la misma adquiere la concavidad (19) en la superficie inferior del envase (27), ver figura nº 6, merced a la aplicación de bufado (33) y a la fuerza del peso del producto (15), ver figuras nº 4-5.Figures 3-6 show observe the successive steps of unfolding the sheet (13) from which is tensioned to the drag system by means of of several tweezers (16), see figure 3, until the same acquires the concavity (19) on the bottom surface of the container (27), see figure 6, thanks to the snorting application (33) and the product weight strength (15), see figures no. 4-5.
Con referencia a la figura nº 7, se muestra un esquema del procedimiento preconizado para la fabricación específica de envases tipo "pack", concretamente con dos cavidades (37) iguales. El procedimiento es muy parecido al de un envase individual pero con la diferencia de que se dispone de un separador intermedio (36) paralelo a las dos cadenas (17) que permite la creación de dos cavidades (37) distintas. Por otro lado, en vez de realizarse un único pliegue (14) para acortar la lámina inferior (11) se realizan dos, uno por cada cavidad (37). Finalmente en cambio de efectuar cuatro bandas soldadas (32) son cinco.With reference to figure 7, a scheme of the recommended procedure for manufacturing specific packaging type "pack", specifically with two equal cavities (37). The procedure is very similar to that of a individual package but with the difference that there is a intermediate separator (36) parallel to the two chains (17) that allows the creation of two different cavities (37). On the other hand, instead of making a single fold (14) to shorten the sheet Lower (11) two are made, one for each cavity (37). Finally, instead of making four welded bands (32) they are five.
Descrito suficientemente la presente invención en correspondencia con las figuras anexas, fácil es comprender que podrán introducirse en la misma cualesquiera modificaciones de detalle que estimen convenientes, siempre y cuando con las modificaciones que se introduzcan no se altere la esencia de la invención que queda resumida en las siguiente reivindicaciones.Suitably described the present invention in correspondence with the attached figures, it is easy to understand that any modifications of detail that they deem convenient, as long as with the modifications that are introduced do not alter the essence of the invention that is summarized in the following claims.
Claims (12)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200600213A ES2281279B1 (en) | 2006-02-01 | 2006-02-01 | PROCEDURE TO CONFORM THE LOWER SURFACE OF A CONTAINER WITHOUT APPLICATION OF HEAT IN A VACUUM PACKING PROCESS. |
| PCT/ES2006/000718 WO2007088221A1 (en) | 2006-02-01 | 2006-12-21 | Method for forming the lower surface of a container without the application of heat in a vacuum packaging process |
| EP06841770A EP1980492B1 (en) | 2006-02-01 | 2006-12-21 | Method for forming the lower surface of a container without the application of heat in a vacuum packaging process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200600213A ES2281279B1 (en) | 2006-02-01 | 2006-02-01 | PROCEDURE TO CONFORM THE LOWER SURFACE OF A CONTAINER WITHOUT APPLICATION OF HEAT IN A VACUUM PACKING PROCESS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2281279A1 true ES2281279A1 (en) | 2007-09-16 |
| ES2281279B1 ES2281279B1 (en) | 2008-06-01 |
Family
ID=38327135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200600213A Expired - Fee Related ES2281279B1 (en) | 2006-02-01 | 2006-02-01 | PROCEDURE TO CONFORM THE LOWER SURFACE OF A CONTAINER WITHOUT APPLICATION OF HEAT IN A VACUUM PACKING PROCESS. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1980492B1 (en) |
| ES (1) | ES2281279B1 (en) |
| WO (1) | WO2007088221A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150210455A1 (en) * | 2014-01-27 | 2015-07-30 | Peter Tillstrom | Blister card systems and methods for assemblying the systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2405120A1 (en) * | 1977-10-08 | 1979-05-04 | Applic Plastique Mec Elec | PROCESS FOR STARTING AND STOPPING A THERMOFORMING MACHINE AND DEVICE FOR IMPLEMENTING THIS PROCESS |
| US5775060A (en) * | 1991-07-03 | 1998-07-07 | Soremartec S.A. | Process for forming wrappers of thin sheet materials and a device for carrying out same |
| JP2002160311A (en) * | 2000-09-18 | 2002-06-04 | Toppan Printing Co Ltd | Method for manufacturing molded paper tray |
| WO2004106162A2 (en) * | 2003-05-30 | 2004-12-09 | Kourtoglou S.A. | Plastic packaging container as well as a molding station, a packaging machine and a method of producing the packaging container |
-
2006
- 2006-02-01 ES ES200600213A patent/ES2281279B1/en not_active Expired - Fee Related
- 2006-12-21 EP EP06841770A patent/EP1980492B1/en not_active Not-in-force
- 2006-12-21 WO PCT/ES2006/000718 patent/WO2007088221A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2405120A1 (en) * | 1977-10-08 | 1979-05-04 | Applic Plastique Mec Elec | PROCESS FOR STARTING AND STOPPING A THERMOFORMING MACHINE AND DEVICE FOR IMPLEMENTING THIS PROCESS |
| US5775060A (en) * | 1991-07-03 | 1998-07-07 | Soremartec S.A. | Process for forming wrappers of thin sheet materials and a device for carrying out same |
| JP2002160311A (en) * | 2000-09-18 | 2002-06-04 | Toppan Printing Co Ltd | Method for manufacturing molded paper tray |
| WO2004106162A2 (en) * | 2003-05-30 | 2004-12-09 | Kourtoglou S.A. | Plastic packaging container as well as a molding station, a packaging machine and a method of producing the packaging container |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1980492A4 (en) | 2012-03-07 |
| EP1980492A1 (en) | 2008-10-15 |
| EP1980492B1 (en) | 2012-11-14 |
| WO2007088221A1 (en) | 2007-08-09 |
| ES2281279B1 (en) | 2008-06-01 |
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