WO2015150618A1 - Method for producing flexible containers comprising a dispensing valve - Google Patents

Method for producing flexible containers comprising a dispensing valve Download PDF

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Publication number
WO2015150618A1
WO2015150618A1 PCT/ES2015/070306 ES2015070306W WO2015150618A1 WO 2015150618 A1 WO2015150618 A1 WO 2015150618A1 ES 2015070306 W ES2015070306 W ES 2015070306W WO 2015150618 A1 WO2015150618 A1 WO 2015150618A1
Authority
WO
WIPO (PCT)
Prior art keywords
flexible
tubular body
heat
dispensing valve
sealable film
Prior art date
Application number
PCT/ES2015/070306
Other languages
Spanish (es)
French (fr)
Inventor
Abel Saez López
Original Assignee
Bossar Packaging, S.A.
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 Bossar Packaging, S.A. filed Critical Bossar Packaging, S.A.
Priority to US15/125,362 priority Critical patent/US20170096247A1/en
Publication of WO2015150618A1 publication Critical patent/WO2015150618A1/en

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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
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/08—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing
    • B65B9/093—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing the web having intermittent motion
    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/32—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by external pressure diagonally applied
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/34—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure
    • B65B43/36—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure applied pneumatically
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146—Closing bags
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B65B61/186—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying or incorporating rigid fittings, e.g. discharge spouts
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/12—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers movable towards or away from container or wrapper during filling or depositing
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls

Definitions

  • the object of the present invention is a manufacturing process for flexible packages with a dispensing valve that has characteristics aimed at minimizing the space necessary for the manufacture of this type of packaging and greatly simplifying said manufacturing.
  • This invention is applicable in the sector dedicated to the manufacture of packaging and especially packaging for liquids or pasty products.
  • the flexible packages provided with a flat envelope are usually manufactured in horizontal packaging machines by unwinding a heat-sealable film, folding two longitudinal halves of the film to the upper area to form the front and back sides of the packages, then performing the lateral welds necessary to delimit the lateral ends of the envelope, the separation by cutting of the successive envelopes, the filling of the same and finally the placement of the valve in the upper mouth of the envelope and the closing thereof by welding.
  • Flexible packages comprising an envelope with side bellows such as those described for example in European patent EP1538105, or in European patent EP 0751081, have a much greater constructive complexity, since the manufacture of the envelope is carried out in plan, that is, with the envelope lying down, and from four previously stamped portions of film.
  • Two of the portions of heat-sealable film intended to form the front and rear faces of the envelope are arranged flat while the other two portions of film intended to form the side bellows are arranged folded by their longitudinal median area between the opposite lateral ends of the shaping portions of the anterior and posterior face.
  • the manufacturing process of flexible packages with dispensing valve object of this invention has constructive particularities oriented to drastically simplify the manufacture of this type of containers, and especially flexible packages with side bellows, although the use thereof is not ruled out.
  • the process of the invention comprises the following steps.
  • This manufacturing process greatly simplifies the manufacture of flexible containers with a dispensing valve, since the vertical conformation of the envelope body allows it to be flat or with side bellows, conforming in any case from a single sheet of film and with a single longitudinal weld, that is, vertically, for the closure of the envelope contour.
  • Another of the advantages provided by this manufacturing process is that the formation of the envelopes is carried out vertically, that is to say in a direction parallel to that of filling the container, said envelopes being kept vertically from their obtaining from the continuous tubular body, until the end of the container.
  • This allows the filling of the container with the product to be packaged can be done before or after placing the dispensing valve in the upper mouth of the envelope and welding the envelope mouth by establishing the fixing of the dispensing valve to the envelope.
  • FIG. 1 shows a schematic elevational view of an exemplary embodiment of the manufacturing process of flexible packages with dispensing valve according to the invention.
  • FIG. 2 shows a perspective view of a flexible package provided with an envelope with bellows obtained by the process of the invention.
  • FIG. 3 shows a plan view of the vertically shaped tubular element according to the method of the invention for manufacturing the envelope with side bellows of Figure 2.
  • - Figure 4 shows a perspective view of a flexible package provided with a on plan obtained by the process of the invention.
  • Figure 5 shows a plan view of the vertically shaped tubular element according to the process of the invention for manufacturing the flat envelope (without side bellows) of Figure 5.
  • the method of the invention comprises comprising the unwinding of a flexible heat-sealable film (1) supplied in a coil, and the vertical conformation, with said heat-sealable film (1), of a tubular body (2 ) Continuous by vertical displacement and longitudinal folding of the heat-sealable film (1), so that the vertical ends (1 1, 12) of the heat-sealable film (1) face each other in full length;
  • a longitudinal weld (31) is then carried out in the tubular body (2) that joins the two opposite ends (1, 12) of the heat sealable film by laterally closing the tubular body (2).
  • the opening of the envelope (3) is carried out by laterally approximating the opposite ends of the upper mouth (33) and the introduction therein of a blow cone (C) to separate the opposite faces thereof .
  • the dosage (D) or filling thereof is carried out with the product to be packaged, the upper mouth (33) of the flexible envelope (3) is stretched (separating its opposite ends); a dispensing valve (4) is introduced into said upper mouth (33) by means of an automatic feeder; and a weld (34) is made that closes the upper mouth (33) and fixes the dispensing valve (4) to the flexible envelope (3), finishing the manufacture of the container.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)

Abstract

The invention relates to a method for producing flexible containers comprising a dispensing valve, said method including: vertically forming a tubular body (2) by means of vertically displacing and longitudinally folding a heat-sealable film (1); longitudinally welding two vertical ends (11, 12) of the heat-sealable film (1); producing, from the tubular body (2), independent flexible envelopes (3) provided with a closed bottom and an open upper mouth (33), by means of carrying out successive transverse weldings (32) and transverse cuts in said tubular body; and horizontally moving the successive flexible envelopes (3) through a series of working stations wherein the product to be packaged is dosed, a dispensing valve (4) is placed in the upper mouth (33) of the flexible containers (3), and the upper mouth (33) is welded (34), securing the dispensing valve (4).

Description

DESCRIPCIÓN  DESCRIPTION
Titulo Procedimiento de fabricación de envases flexibles con válvula dispensadora. Objeto de la invención. Title Manufacturing procedure for flexible packaging with dispensing valve. Object of the invention.
El objeto de la presente invención es un procedimiento de fabricación de envases flexibles con válvula dispensadora que presenta unas características orientadas a minimizar el espacio necesario para la fabricación de este tipo de envases y simplificar notablemente dicha fabricación. The object of the present invention is a manufacturing process for flexible packages with a dispensing valve that has characteristics aimed at minimizing the space necessary for the manufacture of this type of packaging and greatly simplifying said manufacturing.
Campo de aplicación de la invención. Field of application of the invention.
Esta invención es aplicable en el sector dedicado a la fabricación de envases y especialmente de envases para líquidos o productos pastosos. This invention is applicable in the sector dedicated to the manufacture of packaging and especially packaging for liquids or pasty products.
Estado de la técnica. State of the art
Actualmente existen en el mercado multitud de envases para todo tipo de productos y que presentan una configuración más o menos rígida, al estar constituidos en material plástico, o de láminas que incluyen capas de diferentes materiales como cartón, aluminio y plástico. Currently there are many packages on the market for all types of products and they have a more or less rigid configuration, being made of plastic material, or sheets that include layers of different materials such as cardboard, aluminum and plastic.
También existen en el mercado un elevado número de envases, dedicados especialmente a líquidos y productos pastosos, que comprenden un cuerpo en forma de bolsa o sobre formado en un film flexible termosoldable y que disponen en su extremo superior de una válvula dispensadora, generalmente de plástico rígido, unida al sobre del envase por termosoldadura. There is also a high number of packages on the market, especially dedicated to liquids and pasty products, which comprise a bag-shaped body or envelope formed in a flexible heat-sealable film and that have a dispensing valve, usually made of plastic, at its upper end rigid, attached to the envelope of the package by heat welding.
Dentro de este tipo de envases de pueden diferenciar los que comprenden un sobre flexible plano provisto de dos caras, una anterior y otra posterior, unidas por su periferia; y los que comprenden un sobre que dispone entre los extremos de la cara anterior y posterior sendas porciones plegadas a modo de fuelle. Within this type of packaging, it is possible to distinguish those that comprise a flat flexible envelope provided with two sides, one front and one rear, joined by its periphery; and those that comprise an envelope that disposes between the ends of the front and back sides both folded portions as bellows.
Los envases flexibles provistos de un sobre plano se fabrican habitualmente en máquinas envasadoras horizontales realizando el desbobinado de un film termosoldable, el plegado de dos mitades longitudinales del film hacia la zona superior para conformar las caras anterior y posterior de los envases, realizándose a continuación las soldaduras laterales necesarias para delimitar los extremos laterales del sobre, la separación por corte de los sucesivos sobres, el llenado de los mismos y finalmente la colocación de la válvula en la boca superior del sobre y el cierre de la misma por soldadura. The flexible packages provided with a flat envelope are usually manufactured in horizontal packaging machines by unwinding a heat-sealable film, folding two longitudinal halves of the film to the upper area to form the front and back sides of the packages, then performing the lateral welds necessary to delimit the lateral ends of the envelope, the separation by cutting of the successive envelopes, the filling of the same and finally the placement of the valve in the upper mouth of the envelope and the closing thereof by welding.
La fabricación de estos envases flexibles de sobre plano, al realizarse en una envasadora horizontal requiere la utilización de un espacio elevado para la implantación de la máquina en cuestión. The manufacture of these flexible packages on the plane, when performed in a horizontal packaging machine requires the use of a high space for the implantation of the machine in question.
Los envases flexibles que comprenden un sobre con fuelles laterales como los descritos por ejemplo en la patente europea EP1538105, o en la patente europea EP 0751081 , presentan una complejidad constructiva mucho mayor, ya que la fabricación del sobre se realiza en plano, es decir, con el sobre tumbado, y a partir de cuatro porciones de film previamente troqueladas. Dos de las porciones de film termosoldable destinadas a conformar las caras anterior y posterior del sobre se disponen en plano mientras que las otras dos porciones de film destinadas a conformar los fuelles laterales se disponen plegadas por su zona media longitudinal entre los extremos laterales opuestos de las porciones conformantes de la cara anterior y posterior. Flexible packages comprising an envelope with side bellows such as those described for example in European patent EP1538105, or in European patent EP 0751081, have a much greater constructive complexity, since the manufacture of the envelope is carried out in plan, that is, with the envelope lying down, and from four previously stamped portions of film. Two of the portions of heat-sealable film intended to form the front and rear faces of the envelope are arranged flat while the other two portions of film intended to form the side bellows are arranged folded by their longitudinal median area between the opposite lateral ends of the shaping portions of the anterior and posterior face.
Concretamente en la mencionada patente europea EP 0751081 se describe el procedimiento de fabricación que requiere establecer una unión temporal entre las cuatro porciones de film conformantes de las caras anterior y posterior, y de los fuelles laterales, realizando a continuación el sellado de las mismas y dejando abierta una abertura para la colocación de la válvula dispensadora que finalmente es fijada al envase. Además de la complejidad que supone su fabricación, este envase presenta el inconveniente de que debe ser manipulado posteriormente para realizar el llenado del mismo a través de la válvula, lo que dificulta y encarece el envasado del producto en su interior. Specifically, in the aforementioned European patent EP 0751081 the manufacturing process is described which requires establishing a temporary union between the four portions of the forming film of the front and rear faces, and of the side bellows, then sealing them and leaving them open an opening for the placement of the dispensing valve that is finally fixed to the container. In addition to the complexity of its manufacture, this package has the disadvantage that it must be handled later to fill it through the valve, which makes it difficult and expensive to pack the product inside.
Por tanto, el problema técnico que se plantea, es el desarrollo de un procedimiento para la fabricación de envases flexibles con una válvula dispensadora, del tipo de los mencionados anteriormente, que simplifique notablemente su fabricación e incluso su llenado. Therefore, the technical problem that arises is the development of a procedure for the manufacture of flexible packages with a dispensing valve, of the type mentioned above, which greatly simplifies its manufacture and even its filling.
Descripción de la invención. Description of the invention
El procedimiento de fabricación de envases flexibles con válvula dispensadora objeto de esta invención presenta unas particularidades constructivas orientadas a simplificar de forma drástica la fabricación de este tipo de envases, y especialmente de los envases flexibles con fuelles laterales, aunque no se descarta la utilización del mismo procedimiento para la fabricación de envases flexibles con sobre plano;, es decir, sin fuelles laterales. Para conseguir los objetivos planteados el procedimiento de la invención comprende los pasos siguientes. a) el desbobinado de un film termosoldable flexible; b) la conformación en vertical de un cuerpo tubular continuo, mediante el desplazamiento vertical y el plegado longitudinal del film termosoldable, de modo que los extremos verticales del film se dispongan enfrentados en toda su longitud; c) la soldadura longitudinal de los dos extremos enfrentados del film cerrando lateralmente el cuerpo tubular; d) la obtención a partir del cuerpo tubular de sucesivos sobres independientes, provistos de un fondo cerrado y una boca superior abierta, mediante la realización en dicho cuerpo tubular de sucesivas soldaduras y cortes transversales; e) el desplazamiento horizontal de los sucesivos sobres independientes, por una serie de estaciones de trabajo en las que se realiza: la dosificación o llenado del producto a envasar en el interior del sobre, la colocación de una válvula de apertura en la boca superior del sobre, y la soldadura de la boca superior del sobre, estableciendo la fijación de la válvula dispensadora al sobre y el acabado del envase. Este procedimiento de fabricación simplifica de forma notable la fabricación de los envases flexibles con válvula dispensadora, ya que la conformación en vertical del cuerpo del sobre permite que éste pueda ser plano o con fuelles laterales, conformándose en cualquier caso a partir de una única lámina de film y con una única soldadura longitudinal, es decir en sentido vertical, para el cierre del contorno del sobre. The manufacturing process of flexible packages with dispensing valve object of this invention has constructive particularities oriented to drastically simplify the manufacture of this type of containers, and especially flexible packages with side bellows, although the use thereof is not ruled out. procedure for the manufacture of flexible containers with flat, that is, without side bellows. To achieve the objectives set, the process of the invention comprises the following steps. a) unwinding of a flexible heat-sealable film; b) the vertical conformation of a continuous tubular body, by means of vertical displacement and longitudinal folding of the heat-sealable film, so that the vertical ends of the film are arranged facing each other along its entire length; c) the longitudinal welding of the two facing ends of the film by laterally closing the tubular body; d) the obtaining from the tubular body of successive independent envelopes, provided with a closed bottom and an open upper mouth, by means of the realization in said tubular body of successive welds and cross sections; e) the horizontal displacement of the successive independent envelopes, by a series of work stations in which it is carried out: the dosage or filling of the product to be packed inside the envelope, the placement of an opening valve in the upper mouth of the envelope, and welding of the upper mouth of the envelope, establishing the fixation of the dispensing valve to the envelope and the finish of the container. This manufacturing process greatly simplifies the manufacture of flexible containers with a dispensing valve, since the vertical conformation of the envelope body allows it to be flat or with side bellows, conforming in any case from a single sheet of film and with a single longitudinal weld, that is, vertically, for the closure of the envelope contour.
Otra de las ventajas que proporciona este procedimiento de fabricación es que la formación de los sobres se realiza verticalmente, es decir en una dirección paralela a la de llenado del envase, manteniéndose dichos en posición vertical sobres desde su obtención a partir del cuerpo tubular continuo, hasta la finalización del envase. Another of the advantages provided by this manufacturing process is that the formation of the envelopes is carried out vertically, that is to say in a direction parallel to that of filling the container, said envelopes being kept vertically from their obtaining from the continuous tubular body, until the end of the container.
Esto permite que el llenado del envase con el producto a envasar se pueda realizar antes o después de colocar la válvula dispensadora en la boca superior del sobre y de realizar la soldadura de la boca del sobre estableciendo la fijación de la válvula dispensadora al sobre. This allows the filling of the container with the product to be packaged can be done before or after placing the dispensing valve in the upper mouth of the envelope and welding the envelope mouth by establishing the fixing of the dispensing valve to the envelope.
La formación de los sobres en vertical, y el resto de operaciones (llenado, colocación de la válvula dispensadora y cierre superior del envase) en dirección horizontal, reduce significativamente el espacio necesario para la instalación de la maquinaria necesaria para realizar estas operaciones, lo que constituye una ventaja muy relevante respecto a los procesos de fabricación que realizan la totalidad de las operaciones en dirección horizontal. Descripción de las figuras. The formation of the envelopes in vertical, and the rest of operations (filling, placement of the dispensing valve and upper closure of the container) in a horizontal direction, significantly reduces the space necessary for the installation of the machinery necessary to perform these operations, which It constitutes a very important advantage over the manufacturing processes that carry out all the operations in the horizontal direction. Description of the figures.
Para complementar la descripción que se está realizando y con objeto de facilitar la comprensión de las características de la invención, se acompaña a la presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to the present specification in which, for illustrative and non-limiting purposes, the following has been represented:
- La figura 1 muestra una vista esquemática el alzado de un ejemplo de realización del procedimiento de fabricación de envases flexibles con válvula dispensadora de acuerdo con la invención. - Figure 1 shows a schematic elevational view of an exemplary embodiment of the manufacturing process of flexible packages with dispensing valve according to the invention.
- La figura 2 muestra una vista en perspectiva de un envase flexible provisto de un sobre con fuelle obtenido por el procedimiento de la invención. - Figure 2 shows a perspective view of a flexible package provided with an envelope with bellows obtained by the process of the invention.
- La figura 3 muestra una vista en planta del elemento tubular conformado verticalmente de acuerdo con el procedimiento de la invención para fabricar el sobre con fuelles laterales de la figura 2. - La figura 4 muestra una vista en perspectiva de un envase flexible provisto de un sobre plano obtenido por el procedimeinto de la invención. - Figure 3 shows a plan view of the vertically shaped tubular element according to the method of the invention for manufacturing the envelope with side bellows of Figure 2. - Figure 4 shows a perspective view of a flexible package provided with a on plan obtained by the process of the invention.
- La figura 5 muestra una vista en planta del elemento tubular conformado verticalmente de acuerdo con el procedimiento de la invención para fabricar el sobre plano (sin fuelles laterales) de la figura 5. - Figure 5 shows a plan view of the vertically shaped tubular element according to the process of the invention for manufacturing the flat envelope (without side bellows) of Figure 5.
Realización preferida de la invención. Preferred embodiment of the invention.
Tal como se representa en la figura 1 el procedimiento de la invención comprende comprende el desbobinado de un film termosoldable (1 ) flexible suministrado en una bobina, y la conformación en vertical, con dicho film termosoldable (1 ), de un cuerpo tubular (2) continuo mediante el desplazamiento vertical y el plegado longitudinal del film termosoldable (1 ) , de modo que los extremos verticales (1 1 , 12) del film termosoldable (1 ) se dispongan enfrentados en toda su longitud; As shown in Figure 1, the method of the invention comprises comprising the unwinding of a flexible heat-sealable film (1) supplied in a coil, and the vertical conformation, with said heat-sealable film (1), of a tubular body (2 ) Continuous by vertical displacement and longitudinal folding of the heat-sealable film (1), so that the vertical ends (1 1, 12) of the heat-sealable film (1) face each other in full length;
A continuación se realiza en el cuerpo tubular (2) una soldadura longitudinal (31 ) que une los dos extremos enfrentados (1 1 , 12) del film termosoldable cerrando lateralmente el cuerpo tubular (2). A longitudinal weld (31) is then carried out in the tubular body (2) that joins the two opposite ends (1, 12) of the heat sealable film by laterally closing the tubular body (2).
Mediante la realización en el cuerpo tubular (2) de unas soldaduras (32) transversales y de unos cortes transversales, se obtienen sucesivos sobres flexibles (3) independientes, provistos de un fondo cerrado por la correspondiente soldadura transversal (32) y de una boca superior (33) abierta. By carrying out in the tubular body (2) of transverse welds (32) and transverse cuts, successive independent flexible envelopes (3) are obtained, provided with a bottom closed by the corresponding transverse weld (32) and a mouth upper (33) open.
A medida que estos sobres (3) son conformados y liberados del cuerpo tubular (2), lo que se produce a una altura determinada, son desplazados horizontalmente hacia una serie de estaciones de trabajo en las qué se realiza su llenado y acabado. As these envelopes (3) are shaped and released from the tubular body (2), which is produced at a certain height, they are moved horizontally towards a series of work stations in which their filling and finishing is carried out.
En dichas estaciones de trabajo, distanciadas horizontalmente, se realiza la apertura del sobre (3) aproximando lateralmente los extremos opuestos de la boca superior (33) y la introducción en su interior un cono de soplado (C) para separar las caras opuestas del mismo. In said work stations, spaced horizontally, the opening of the envelope (3) is carried out by laterally approximating the opposite ends of the upper mouth (33) and the introduction therein of a blow cone (C) to separate the opposite faces thereof .
A continuación se realiza la dosificación (D) o llenado del mismo con el producto a envasar, se estira (E) la boca superior (33) del sobre flexible (3) separando sus extremos opuestos; se introduce en la dicha boca superior (33) una válvula dispensadora (4) mediante un alimentador automático; y se realizando una soldadura (34) que cierra la boca superior (33) y fija la válvula dispensadora (4) al sobre flexible (3), finalizando la fabricación del envase. Subsequently, the dosage (D) or filling thereof is carried out with the product to be packaged, the upper mouth (33) of the flexible envelope (3) is stretched (separating its opposite ends); a dispensing valve (4) is introduced into said upper mouth (33) by means of an automatic feeder; and a weld (34) is made that closes the upper mouth (33) and fixes the dispensing valve (4) to the flexible envelope (3), finishing the manufacture of the container.
Este procedimiento de fabricación, en función de la sección horizontal del cuerpo tubular (2) conformado en vertical, con un único film termosoldable, permite obtener: This manufacturing process, depending on the horizontal section of the tubular body (2) formed vertically, with a single heat-sealable film, allows to obtain:
- envases cuyo sobre (3a) disponga de una única soldadura longitudinal (31 ), de dos caras (35) anterior y posterior, y de dos fuelles laterales (36), tal como se muestra en las figuras 2 y 3 ó, - packages whose envelope (3a) has a single longitudinal weld (31), of two front and rear faces (35), and two side bellows (36), as shown in Figures 2 and 3 or,
- envases cuyo sobre (3b) disponga de una única soldadura longitudinal (31 ) y de dos caras (35) anterior y posterior, careciendo de fuelles laterales, y adoptando una configuración aplanada, tal como se muestra en las figuras 3 y 4. - packages whose envelope (3b) has a single longitudinal weld (31) and two front and rear faces (35), lacking side bellows, and adopting a flattened configuration, as shown in figures 3 and 4.
Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la invención que se reivindican a continuación. Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply an alteration. of the essential features of the invention that are claimed below.

Claims

REIVINDICACIONES
1 .- Procedimiento de fabricación de envases flexibles con válvula dispensadora; caracterizado porque comprende: comprende los pasos siguientes: a) el desbobinado de un film termosoldable (1 ) flexible; b) la conformación en vertical de un cuerpo tubular (2) continuo mediante el desplazamiento vertical y el plegado longitudinal del film termosoldable (1 ), de modo que los extremos verticales (1 1 , 12) del film termosoldable (1 ) se dispongan enfrentados en toda su longitud; c) la soldadura longitudinal de los dos extremos verticales (1 1 , 12) enfrentados del film termosoldable (1 ) cerrando lateralmente el cuerpo tubular (2); d) la obtención a partir del cuerpo tubular (2) de sucesivos sobres flexibles (3) independientes, provistos de un fondo cerrado y una boca superior (33) abierta, mediante la realización en dicho cuerpo tubular de sucesivas soldaduras transversales (32) y cortes transversales; e) el desplazamiento horizontal de los sucesivos sobres flexibles (3) independientes, por una serie de estaciones de trabajo en las que se realiza la dosificación (D) o llenado del producto a envasar en el interior de los sucesivos sobres flexibles (3), la colocación de una válvula dispensadora (4) en la boca superior (33) de los envases flexibles (3), y la soldadura (34) de la boca superior (33) de los sobres flexibles, estableciendo su cierre y la fijación de la válvula dispensadora (4) al correspondiente sobre flexible (3). 1 .- Manufacturing procedure for flexible packaging with dispensing valve; characterized in that it comprises: comprises the following steps: a) the unwinding of a flexible heat-sealable film (1); b) the vertical shaping of a continuous tubular body (2) by vertical displacement and longitudinal folding of the heat-sealable film (1), so that the vertical ends (1, 12) of the heat-sealable film (1) are arranged facing each other in all its length; c) the longitudinal welding of the two vertical ends (1, 12) facing the heat-sealable film (1) laterally closing the tubular body (2); d) obtaining from the tubular body (2) of successive independent flexible envelopes (3), provided with a closed bottom and an open upper mouth (33), by carrying out in said tubular body successive transverse welds (32) and cross sections; e) the horizontal displacement of the successive independent flexible envelopes (3), by a series of work stations in which the dosing (D) or filling of the product to be packaged inside the successive flexible envelopes (3) is carried out, the placement of a dispensing valve (4) in the upper mouth (33) of the flexible packages (3), and welding (34) of the upper mouth (33) of the flexible envelopes, establishing its closure and fixing the dispensing valve (4) to the corresponding flexible envelope (3).
2.- Procedimiento, según la reivindicación 1 , caracterizado porque durante la conformación en vertical del cuerpo tubular (2) se definen en el film termosoldable (1 ) unos pliegues longitudinales que definen un sobre flexible (3a) con dos caras (35) anterior y posterior, y dos fuelles laterales (36). 2. Method according to claim 1, characterized in that during the vertical shaping of the tubular body (2) longitudinal folds defining a flexible envelope (3a) with two faces (35) are defined in the heat-sealable film (1) and later, and two side bellows (36).
3.- Procedimiento, según la reivindicación 1 , caracterizado porque durante la conformación en vertical del cuerpo tubular (2) se definen en el film termosoldable unos pliegues longitudinales que definen un sobre flexible (3b) con dos caras (35) anterior y posterior, sin fuelles laterales (36). 3. Method according to claim 1, characterized in that during the vertical shaping of the tubular body (2) longitudinal folds defining a flexible envelope (3b) with two front and rear faces (35) are defined in the heat sealable film, without side bellows (36).
PCT/ES2015/070306 2014-03-31 2015-04-16 Method for producing flexible containers comprising a dispensing valve WO2015150618A1 (en)

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US20160297553A1 (en) * 2015-04-09 2016-10-13 Bossar Packaging, S.A Manufacturing process of flexible packaging with dispensing valve
ES2899394T3 (en) 2017-07-17 2022-03-11 Bossar Packaging S A Reciprocating Beam Conveyor Belt Bag Treatment Machine

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EP2927133A1 (en) 2015-10-07
ES2503965B1 (en) 2015-07-14
ES2503965A1 (en) 2014-10-07
EP2927133B1 (en) 2018-08-01

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