WO2003011693A1 - Continuous packaging machine - Google Patents

Continuous packaging machine Download PDF

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Publication number
WO2003011693A1
WO2003011693A1 PCT/ES2002/000360 ES0200360W WO03011693A1 WO 2003011693 A1 WO2003011693 A1 WO 2003011693A1 ES 0200360 W ES0200360 W ES 0200360W WO 03011693 A1 WO03011693 A1 WO 03011693A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
bags
machine according
station
support mechanism
Prior art date
Application number
PCT/ES2002/000360
Other languages
Spanish (es)
French (fr)
Inventor
Ezequiel Giro Amigo
Original Assignee
Giro Gh, 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 Giro Gh, S.A. filed Critical Giro Gh, S.A.
Publication of WO2003011693A1 publication Critical patent/WO2003011693A1/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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/50—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using rotary tables or turrets
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables
    • 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
    • B65B61/14—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for incorporating, or forming and incorporating, handles or suspension means in packages
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables
    • B65B25/048—Packaging fruit or vegetables in nets

Definitions

  • the object of the invention is a continuous packaging machine, which is applicable to the continuous packaging of fruit and vegetable products, such as citrus fruits, tubers, etc., in mesh bags.
  • a wide variety of embodiments of machines for the continuous packaging of fruit and vegetable products such as citrus and tubers is known.
  • such machines have a structure adapted to each type of packaged product, and a limited capacity to adapt to packaging variables;
  • its adaptation to such variables implies high costs that, in many cases, make it impossible.
  • known embodiments of packaging machines have a packaging capacity, expressed in the number of packaging operations per hour, which is reduced, which in any case increases production costs.
  • the continuous packaging machine object of the invention is applicable to the packaging of fruit and vegetable products in tubular mesh bags, supplied in a vertical position by a delivery device, the bags having an essentially quadrangular contour with its lateral edges provided with an inner folding to bellows mode, while its upper end is open and its lower end is provided with a bottom.
  • the packaging machine is characterized by comprising the following elements: a first bag receiving station from the delivery device; an annular guide whose perimeter comprises an essentially circumferential arc of 180 degrees and an essentially elliptical arc of 180 degrees, to which four equal bag support devices are located and located at 90 degrees from each other, movable simultaneously making 90 degree turns and so that each of them sequentially occupies a first position in a link of the circumferential arc with the elliptical arc, a second position in the middle of the elliptical arc, a third position in the other link of the circumferential arc with the elliptical arc and a fourth position in the middle of the circumferential arc; .a second bag receiving station supplied by the first bag receiving station and receiving full and closed bags, located opposite the first bag receiving station and in the first position of the bag support devices; a bag filling station with the product to be packaged, located in the second position of the bag support devices; a full bag closing station, located in the third position of the bag
  • the first receiving station is provided with a carriage provided with a bag securing device, the car having a reciprocating linear displacement capacity between the bag delivery device and the second receiving station of bags.
  • the bag-holding device comprises two facing fasteners with the ability to move between two positions, a first opening for receiving the bag and a second closing for holding it by its upper end
  • each bag support device comprises a frame consisting of two parallel guides relative to each other linked by their homologous ends by respective transverse link elements, an external support mechanism and an inner support mechanism provided with respective clamps for securing the edges of the upper end of the bag, both support mechanisms being connected to the parallel guides by respective coupling means.
  • the invention is also characterized in that the outer support mechanism and the inner support mechanism have symmetrical and alternative sliding capacity on said two parallel guides between two positions, an opening position for filling the bag with the product to be packaged and a bag closing position.
  • the coupling means comprise a drive belt and two pulleys located in the transverse link elements, the outer support mechanism being fixed to a branch of the belt, while the inner support mechanism is fixed to the other branch of the tape.
  • the inner support mechanism is coupled to the annular guide, so that the inner support mechanism and the outer support mechanism occupy the open position in the second position of the bag support device, and occupy the closed position in the first, third and fourth positions of the bag support device.
  • each of the clamps comprises an inner arm and. an outer arm provided with respective flat surfaces facing each other, the outer arm being provided with a housing adapted for receiving the inner arm and both arms being joined by coupling means adapted so that the outer arm can occupy a position relative to the inner arm opening for the reception of an edge of the upper end of the bag, and a closing position adapted for securing said edge between the facing surfaces of the fixed and mobile arms.
  • the coupling means comprise two guiding rods, parallel to each other that cross the outer arm and that are connected at one end to the inner arm, both rods having sliding capacity in both directions through the outer arm, each rod being provided with a loaded closing spring so that it permanently tends to place the outer arm in the closed position.
  • the outer arm of the clamps of the outer support mechanism and the outer arm of the clamps of the inner support mechanism are provided with respective connecting means.
  • the link means comprise in each outer arm a link protrusion, a retention element adapted to receive both link protrusions and an actuator.
  • the outer arm of the clamps of the inner support mechanism is coupled to a pulling means that approximate or move the inner support mechanism to the center of the annular guide, thereby moving away or approaching respectively the outer support mechanism of said center.
  • the traction means comprise an actuator.
  • the invention is also characterized in that the bag closing station filled with packaged product is provided with a folding device, a welding device and a die-cutting device.
  • Another feature of the invention is that the folding device produces a bellows fold at the upper end of the bag.
  • the welding device performs a transversal welding in the amplitude of the upper end of the bag, closing it.
  • the welding device makes a first and a second transverse welds in the amplitude of the upper end of the bag, closing it, while the die-cutting device makes at least one opening between both transverse welds, adapted to facilitate the hold of the bag.
  • the handle incorporation station in the bags is provided with a handle incorporation device in the bags and a welding device.
  • the invention is also characterized in that the handle incorporating device for the bags has a portion of the handle inside the end of the bag closed by the welding device of the bag closing station, centered with respect to the longitudinal axis of the bag , while the welding device performs a transverse welding above the transverse welding performed by the welding device of the bag closing station, the handle being welded to the upper end of the bag.
  • the packaging machine is provided with a bag lift platform, adjustable in height, arranged below the annular guide.
  • the support platform consists of a circular crown arranged coaxially with respect to the axis of the annular guide, provided with a main segment and a tilting segment, on which four supports of flexible material are coupled on which they support the full bags, transported by the bag support devices.
  • FIGS. 1 and 2 are partial partial plan views of the machine according to the invention
  • Fig. 3 is a perspective view of a bag support device of the machine of the invention
  • Fig. 4 is a sectional view of the bag support device of the machine of the invention
  • Fig. 5 is a plan view of the bag lift platform of the machine of the invention
  • Fig. 6, is a partial elevational view of the bag lift platform of the machine of the invention.
  • the continuous packaging machine which is described as an example of embodiment, comprises the following elements: a first bag receiving station 1; an annular guide 2; a second receiving station 3; a bag filling station 4 with the product to be packaged; a bag closing station 5 full; and a handle incorporation station 6 for the bags.
  • the first bag receiving station 1 is adapted to receive generally square-shaped tubular mesh bags with their lateral edges provided with an inner fold as a bellows, having its upper end open and its lower end closed; The bags are supplied vertically by a bag delivery device, not shown.
  • the first receiving station 1 is provided with a carriage 11 on which a bag holding device 12 can slide in both directions, indicated as A and B in the figure, between two positions, a first position of receiving bags supplied by the delivery device, indicated by dashed lines, and a second position located in the second receiving station 3, drawn in a continuous line.
  • the clamping device 11 is provided with two equal clamping elements 13 arranged symmetrically with respect to the axis of the device, capable of turning in both directions, indicated as C and D in the figure, around respective axes 14 and between two positions, a first opening, not shown, in which the delivery device supplies a bag 15, and a second closing in which the bag 15 It is held by its upper end.
  • the annular guide 2 represented by dashed lines in Fig. 2, comprises an essentially circumferential arc 21 covering an angle of 180 degrees, and an essentially elliptical arc 22 covering an angle of 180 degrees.
  • To the annular guide 2 are coupled four equal support devices 7 of bag 15 arranged each other at 90 degrees.
  • the support devices 7 are simultaneously displaced by turning in the direction indicated as E, making 90 degree turns and so that each of them sequentially occupies the following positions: a first position I at a link of the circumferential arc 21 with the elliptical arc 22, corresponding to the position of the second receiving station 3, see Fig.
  • the annular guide 2 is provided in each of said positions I to IV of respective actuator organs 23, provided, for example, with a pneumatic cylinder, whose purpose is to cause a corresponding annular guide segment 2 to move towards the center thereof, in the manner shown as an example and by dashed lines in position II of the bag filling station 4 with the product to be packaged.
  • each of the support devices 7 for bags 15 comprises a frame 70, composed of two guides 71 that are equal and parallel with respect to each other, connected by their corresponding ends by means of respective transverse link elements 72, and two support mechanisms, an external support mechanism 73 and an internal support mechanism 75, coupled to the guides 71 through respective and complementary coupling means 77, so that they can be displaced by sliding on them in both directions, indicated as F and G.
  • the coupling means 77 comprise a drive belt 78 and two pulleys 79 fixed to corresponding ends of the link elements transverse 72, the outer support mechanism 73 being attached to the lower branch of the drive belt 78 and the inner support mechanism 75 to the upper branch of said belt 78.
  • the inner support mechanism 75 is provided with a roller 74 adapted to be housed inside the annular guide 2, consequently, the rotation of the support device 7 around the axis of the annular guide 2 causes the approach or distance of the mechanism of interior support 75 to said axis and, simultaneously, the corresponding distance or approach to said axis of the external support mechanism 73, by the action of the coupling means 77.
  • the external support mechanism 73 and the support mechanism inside 75 occupy an opening position that occurs when the support device 7 occupies the position II of filling bags with the product to be packaged - Fig. 2 -, and a closing position that occurs when the support device 7 occupies Positions I, III and IV - Fig. 2 -.
  • each clamp 80 comprises an outer arm 81 that is coupled to the guides 71, and an inner arm 82, the outer arm 81 being provided with a housing 83 adapted to receive the inner arm 82.
  • each clamp 80 The outer arm 81 and the inner arm 82 of each clamp 80 are mutually coupled by means of two guide rods 84 and two closing springs 85, adapted so that each guiding rod 84 crosses the outer arm 81 and is attached at one of its ends to the inner arm 82, with sliding capacity in both directions through the outer arm 81, while the closing spring 85 works permanently in compression, supporting one of its ends against the free end of the guide rod 84 and its other end against the outer arm 81.
  • the inner arm 82 can occupy with respect to the outer arm 81 an opening position shown in the Fig. 4, adapted to receive an edge 86 of the upper end of a bag 15, and a closed position, not shown, in which the edge 86 is held by the action of the clamps 80.
  • Fig. 4 it can be seen that the inner arm 82 of the clamps 80 of the outer support mechanism 73 and the inner arm 82 of the clamps 80 of the inner support mechanism 75 are provided with respective connecting means comprising in each inner arm 82 a link shoulder 87, a retaining element 88 with vertical displacement capability in both directions indicated as I and J, and an actuator member 89, shown in Fig. 6, of the retaining element 88, all this adapted so that, with the clamping clips 80 being in the closed position shown in Fig. 6, both link projections 87 of the inner arms 82 can be housed in the retaining element 88.
  • the bag closing station 5 is provided with a folding device 51, a welding device 52, both schematically represented, and a die-cutting device not shown.
  • the folding device 51 is adapted to produce at the top end of the filled bag 15 from the bag filling station 4, a bellows fold;
  • the welding device 52 is adapted to proceed with the closure of the bag 15 filled with the fold made, by means of one or two transverse welds in the amplitude of the upper end of the bag 15;
  • the die cutting device is adapted to produce one or more openings between both transverse welds made by the welding device 52, said opening / s having handle functions to facilitate the transport of the full bag by the user.
  • Fig. 1 it is detailed that the handle incorporation station 6 to the bags 15 is provided with a handle incorporation device, not shown, and a welding device 61 schematically represented, adapted to produce a transverse weld in the amplitude of the upper end of the bag 15.
  • a first variant of closure of bags 15 provided with bellows folds consists in carrying out in the closure station 5 of bags 15 two transverse welds and a die-cutting between both of them configuring a handle, by means of welding devices 52 and the device of die cut respectively; in this case the handle incorporation station 6 does not perform any operation on the full bag 15.
  • a second variant of closure of bags 15 provided with bellows-like folds consists in carrying out in the closing station 5 of bags 15 a transverse welding by means of the welding device 52, and later in the handle incorporating station 6 to the bags 15, arrange a handle portion inside the closed end of the bag 15 and centered thereon by means of the handle incorporating device, to then proceed to carry out a transversal welding in the amplitude of the upper end of the bag 15 by means of the welding device 61, above the transverse welding performed by the welding device 52 of the closing station 5, the handle being welded to the upper end of the bag 15.
  • the packaging machine of the invention comprises a support platform 9 of bags 15, generally of a circular crown and coaxially arranged with respect to the axis of the annular guide 2, constituted by a main segment 91 and a tilting segment 92, the latter with tilting capacity in the two directions indicated as L and M, driven by an actuator 94, for example a pneumatic cylinder.
  • the support platform 9 further comprises four supports 93 equal to each other, of flexible and essentially quadrangular contour material; three supports supported by their outer end to the main segment 91 and a support supported to the tilting segment 92, while all of them are connected to respective vertical translation mechanisms 95 which, for the purpose of simplification, have been partially represented.
  • the support platform 9 is adapted to rotate in the direction indicated as E, which corresponds to the rotation of the bag support devices 7, the flexible supports 93 being adapted to support the full bags 15 carried by the support devices 7 bags

Abstract

The invention relates to a continuous packaging machine which is adapted to tubular mesh bags (15) that are supplied vertically by a delivery device. The inventive machine comprises: a first station for receiving (1) the bags (15); an annular guide (2) comprising a circular arc (21) and an elliptical arc (22) and to which four bag (15) support (7) devices are connected that occupy sequentially four positions corresponding to an equal number of stations; a second station for receiving (3) the bags (15) which is located in the first position of the support devices (7); a station for filling (4) the bags (15) which is located in the second position; a station for closing (5) the bags (15) which is located in the third position; and a station for providing the bags (15) with a handle (6), said station being located in the fourth position.

Description

D E S C R I P C I Ó N D E S C R I P C I Ó N
MAQUINA DE ENVASADO EN CONTINUOCONTINUOUS PACKAGING MACHINE
Sector técnico de la invenciónTechnical sector of the invention
La invención tiene por objeto una máquina de envasado en continuo, que es aplicable al envasado en continuo de productos hortofrutícolas, tales como cítricos, tubérculos, etc., en bolsas de malla.The object of the invention is a continuous packaging machine, which is applicable to the continuous packaging of fruit and vegetable products, such as citrus fruits, tubers, etc., in mesh bags.
Antecedentes de la invenciónBackground of the invention
Es conocida una extensa variedad de realizaciones de máquinas destinadas al envasado en continuo de productos hortofrutícolas tales como cítricos y tubérculos. En general, tales máquinas presentan una estructura adecuada a cada tipo de producto envasado, y una limitada capacidad de adaptación a las variables de envasado; además, su adaptación a tales variables implica unos elevados costes que, en muchas ocasiones, la imposibilitan. Por otro lado, las realizaciones conocidas de máquinas envasadoras presentan una capacidad de envasado, expresada en número de operaciones de envasado por hora, reducida, lo que en cualquier caso incrementa los costes de producción.A wide variety of embodiments of machines for the continuous packaging of fruit and vegetable products such as citrus and tubers is known. In general, such machines have a structure adapted to each type of packaged product, and a limited capacity to adapt to packaging variables; In addition, its adaptation to such variables implies high costs that, in many cases, make it impossible. On the other hand, known embodiments of packaging machines have a packaging capacity, expressed in the number of packaging operations per hour, which is reduced, which in any case increases production costs.
Explicación de la invenciónExplanation of the invention.
Con objeto de aportar una solución a los inconvenientes y limitaciones de las realizaciones conocidas de máquinas envasadoras de productos hortofrutícolas, se da a conocer una máquina de envasado en continuo, de nueva estructura y funcionalidad.In order to provide a solution to the drawbacks and limitations of known embodiments of fruit and vegetable products packaging machines, a continuous packaging machine, of new structure and functionality, is disclosed.
La máquina de envasado en continuo objeto de la invención es aplicable al envasado de productos hortofrutícolas en bolsas de malla tubular, suministradas en posición vertical por un dispositivo de entrega, teniendo las bolsas un contorno esencialmente cuadrangular con sus bordes laterales provistos de un plegado interior a modo de fuelle, en tanto que su extremo superior es abierto y su extremo inferior está provisto de un fondo.The continuous packaging machine object of the invention is applicable to the packaging of fruit and vegetable products in tubular mesh bags, supplied in a vertical position by a delivery device, the bags having an essentially quadrangular contour with its lateral edges provided with an inner folding to bellows mode, while its upper end is open and its lower end is provided with a bottom.
La máquina de envasado se caracteriza por comprender ios siguientes elementos: una primera estación receptora de bolsas procedentes del dispositivo de entrega; una guía anular cuyo perímetro comprende un arco esencialmente circunferencial de 180 grados y un arco esencialmente elíptico de 180 grados, a la que están acoplados cuatro dispositivos de soporte de bolsa iguales y situados a 90 grados uno del otro, desplazables simultáneamente realizando giros de 90 grados y de modo que cada uno de ellos ocupa secuencialmente una primera posición en un enlace del arco circunferencial con el arco elíptico, una segunda posición en la mitad del arco elíptico, una tercera posición en el otro enlace del arco circunferencial con el arco elíptico y una cuarta posición en la mitad del arco circunferencial; .una segunda estación receptora de bolsas suministradas por la primera estación receptora de bolsas y de recepción de bolsas llenas y cerradas, situada enfrentadamente a la primera estación receptora de bolsas y en la primera posición de los dispositivos de soporte de bolsa; una estación de llenado de bolsas con el producto a envasar, situada en la segunda posición de los dispositivos de soporte de bolsa; una estación de cierre de bolsas llenas, situada en la tercera posición de los dispositivos de soporte de bolsa; y una estación de incorporación de asa a las bolsas, situada en la cuarta posición de los dispositivos de soporte de bolsa.The packaging machine is characterized by comprising the following elements: a first bag receiving station from the delivery device; an annular guide whose perimeter comprises an essentially circumferential arc of 180 degrees and an essentially elliptical arc of 180 degrees, to which four equal bag support devices are located and located at 90 degrees from each other, movable simultaneously making 90 degree turns and so that each of them sequentially occupies a first position in a link of the circumferential arc with the elliptical arc, a second position in the middle of the elliptical arc, a third position in the other link of the circumferential arc with the elliptical arc and a fourth position in the middle of the circumferential arc; .a second bag receiving station supplied by the first bag receiving station and receiving full and closed bags, located opposite the first bag receiving station and in the first position of the bag support devices; a bag filling station with the product to be packaged, located in the second position of the bag support devices; a full bag closing station, located in the third position of the bag support devices; and a bag incorporation station, located in the fourth position of the bag support devices.
Otra característica de la máquina según la invención consiste en que la primera estación receptora está dotada de un carro provisto de un dispositivo de sujeción de bolsas, teniendo el carro capacidad de desplazamiento lineal de vaivén entre el dispositivo de entrega de bolsas y la segunda estación receptora de bolsas.Another feature of the machine according to the invention is that the first receiving station is provided with a carriage provided with a bag securing device, the car having a reciprocating linear displacement capacity between the bag delivery device and the second receiving station of bags.
Según otra característica de la invención, el dispositivo de sujeción de bolsas comprende dos elementos de sujeción enfrentados con capacidad de desplazamiento entre dos posiciones, una primera de apertura para la recepción de la bolsa y una segunda de cierre para la sujeción de la misma por su extremo superior.According to another characteristic of the invention, the bag-holding device comprises two facing fasteners with the ability to move between two positions, a first opening for receiving the bag and a second closing for holding it by its upper end
Es también característico de la máquina objeto de la invención, el que cada dispositivo de soporte de bolsa comprende un marco constituido por dos guías paralelas una respecto de la otra enlazadas por sus extremos homólogos mediante respectivos elementos transversales de enlace, un mecanismo de soporte exterior y un mecanismo de soporte interior provistos de respectivas pinzas de sujeción de los bordes del extremo superior de la bolsa, estando ambos mecanismos de soporte unidos a las guías paralelas por respectivos medios de acoplamiento.It is also characteristic of the machine object of the invention, that each bag support device comprises a frame consisting of two parallel guides relative to each other linked by their homologous ends by respective transverse link elements, an external support mechanism and an inner support mechanism provided with respective clamps for securing the edges of the upper end of the bag, both support mechanisms being connected to the parallel guides by respective coupling means.
La invención también se caracteriza porque el mecanismo de soporte exterior y el mecanismo de soporte interior tienen capacidad de deslizamiento simétrico y alternativo sobre dichas dos guías paralelas entre dos posiciones, una posición de apertura para el llenado de la bolsa con el producto a envasar y una posición de cierre de la bolsa.The invention is also characterized in that the outer support mechanism and the inner support mechanism have symmetrical and alternative sliding capacity on said two parallel guides between two positions, an opening position for filling the bag with the product to be packaged and a bag closing position.
Otra característica de la invención consiste en que los medios de acoplamiento comprenden una cinta de accionamiento y dos poleas situadas en los elementos transversales de enlace, estando fijado el mecanismo de soporte exterior a un ramal de la cinta, en tanto que el mecanismo de soporte interior está fijado al otro ramal de la cinta.Another feature of the invention is that the coupling means comprise a drive belt and two pulleys located in the transverse link elements, the outer support mechanism being fixed to a branch of the belt, while the inner support mechanism is fixed to the other branch of the tape.
Es característico de la invención que el mecanismo de soporte interior está acoplado a la guía anular, de modo que el mecanismo de soporte interior y el mecanismo de soporte exterior ocupan la posición de abierto en la posición segunda del dispositivo de soporte de bolsa, y ocupan la posición de cerrado en las posiciones primera, tercera y cuarta del dispositivo de soporte de bolsa.It is characteristic of the invention that the inner support mechanism is coupled to the annular guide, so that the inner support mechanism and the outer support mechanism occupy the open position in the second position of the bag support device, and occupy the closed position in the first, third and fourth positions of the bag support device.
La invención también se caracteriza porque cada una de las pinzas de sujeción comprende un brazo interior y. un brazo exterior provistos de respectivas superficies planas enfrentadas, estando el brazo exterior dotado de un alojamiento adaptado para la recepción del brazo interior y estando ambos brazos unidos por unos medios de acoplamiento adaptados de modo que el brazo exterior puede ocupar respecto del brazo interior una posición de apertura para la recepción de un borde del extremo superior de la bolsa, y una posición de cierre adaptada para la sujeción de dicho borde entre las superficies enfrentadas de los brazos fijo y móvil.The invention is also characterized in that each of the clamps comprises an inner arm and. an outer arm provided with respective flat surfaces facing each other, the outer arm being provided with a housing adapted for receiving the inner arm and both arms being joined by coupling means adapted so that the outer arm can occupy a position relative to the inner arm opening for the reception of an edge of the upper end of the bag, and a closing position adapted for securing said edge between the facing surfaces of the fixed and mobile arms.
Otra característica de la invención consiste en que los medios de acoplamiento comprenden dos vastagos de guiado, paralelos uno respecto del otro que atraviesan el brazo exterior y que están unidos por uno de sus extremos al brazo interior, teniendo ambos vastagos capacidad de deslizamiento en ambos sentidos a través del brazo exterior, estando provisto cada vastago de un resorte de cierre cargado de modo que permanentemente tiende a situar al brazo exterior en la posición de cierre.Another feature of the invention is that the coupling means comprise two guiding rods, parallel to each other that cross the outer arm and that are connected at one end to the inner arm, both rods having sliding capacity in both directions through the outer arm, each rod being provided with a loaded closing spring so that it permanently tends to place the outer arm in the closed position.
Según otra característica de la invención, el brazo exterior de las pinzas de sujeción del mecanismo de soporte exterior y el brazo exterior de las pinzas de sujeción del mecanismo de soporte interior están provistos de respectivos medios de enlace.According to another feature of the invention, the outer arm of the clamps of the outer support mechanism and the outer arm of the clamps of the inner support mechanism are provided with respective connecting means.
Es también característico de la invención que los medios de enlace comprenden en cada brazo exterior un resalte de enlace, un elemento de retención adaptado para recibir ambos resaltes de enlace y un órgano accionador.It is also characteristic of the invention that the link means comprise in each outer arm a link protrusion, a retention element adapted to receive both link protrusions and an actuator.
De acuerdo con otra característica de invención, el brazo exterior de las pinzas de sujeción del mecanismo de soporte interior está acoplado a unos medios de tracción que aproximan o alejan el mecanismo de soporte interior al centro de la guía anular, con lo que aleja o aproxima respectivamente el mecanismo de soporte exterior de dicho centro.According to another characteristic of the invention, the outer arm of the clamps of the inner support mechanism is coupled to a pulling means that approximate or move the inner support mechanism to the center of the annular guide, thereby moving away or approaching respectively the outer support mechanism of said center.
Es característico de la invención que los medios de tracción comprenden un órgano accionador.It is characteristic of the invention that the traction means comprise an actuator.
La invención también se caracteriza porque la estación de cierre de bolsas llenas de producto envasado está provista de un dispositivo de plegado, de un dispositivo de soldadura y de un dispositivo de troquelado.The invention is also characterized in that the bag closing station filled with packaged product is provided with a folding device, a welding device and a die-cutting device.
Otra característica de la invención consiste en que el dispositivo de plegado produce en el extremo superior de la bolsa un pliegue a modo de fuelle.Another feature of the invention is that the folding device produces a bellows fold at the upper end of the bag.
Según otra característica de la invención, el dispositivo de soldadura realiza una soldadura transversal en la amplitud del extremo superior de la bolsa, cerrándola. De acuerdo con otra característica de la invención, el dispositivo de soldadura realiza una primera y una segunda soldaduras transversales en la amplitud del extremo superior de la bolsa, cerrándola, en tanto que el dispositivo de troquelado realiza como mínimo una abertura entre ambas soldaduras transversales, adaptada par facilitar el asimiento de la bolsa.According to another characteristic of the invention, the welding device performs a transversal welding in the amplitude of the upper end of the bag, closing it. According to another feature of the invention, the welding device makes a first and a second transverse welds in the amplitude of the upper end of the bag, closing it, while the die-cutting device makes at least one opening between both transverse welds, adapted to facilitate the hold of the bag.
Es característico de la invención el que la estación de incorporación de asa a las bolsas está provisto de un dispositivo de incorporación de asa a las bolsas y de un dispositivo de soldadura.It is characteristic of the invention that the handle incorporation station in the bags is provided with a handle incorporation device in the bags and a welding device.
La invención también se caracteriza porque el dispositivo de incorporación de asa a las bolsas dispone una porción del asa en el interior del extremo de la bolsa cerrado por el dispositivo de soldadura de la estación de cerrado de bolsas, centradamente respecto del eje longitudinal de la bolsa, en tanto que el dispositivo de soldadura realiza una soldadura tranversal por encima de la soldadura transversal realizada por el dispositivo de soldadura de la estación de cierre de bolsas, quedando el asa soldada al extremo superior de la bolsa.The invention is also characterized in that the handle incorporating device for the bags has a portion of the handle inside the end of the bag closed by the welding device of the bag closing station, centered with respect to the longitudinal axis of the bag , while the welding device performs a transverse welding above the transverse welding performed by the welding device of the bag closing station, the handle being welded to the upper end of the bag.
De acuerdo con otra característica de la invención, la máquina de envasado está provista de una plataforma de sustentación de bolsas, regulable en altura, dispuesta por debajo de la guía anular.In accordance with another feature of the invention, the packaging machine is provided with a bag lift platform, adjustable in height, arranged below the annular guide.
Según otra característica de la invención, la plataforma de sustentación consiste en una corona circular dispuesta coaxialmente respecto del eje de la guía anular, provista de un segmento principal y de un segmento basculante, sobre los que están acoplados cuatro soportes de material flexible sobre los que apoyan las bolsas llenas, transportadas por los dispositivos de soporte de bolsas.According to another characteristic of the invention, the support platform consists of a circular crown arranged coaxially with respect to the axis of the annular guide, provided with a main segment and a tilting segment, on which four supports of flexible material are coupled on which they support the full bags, transported by the bag support devices.
Breve descripción de los dibujos En los dibujos adjuntos se ilustra, a título de ejemplo no limitativo, un modo de realización de la máquina de envasado en continuo objeto de la invención. En dichos dibujos: las Figs. 1 y 2, son respectivas vistas parciales en planta de la máquina según la invención; la Fig. 3, es una vista en perspectiva de un dispositivo de soporte de bolsas, de la máquina de la invención; la Fig. 4, es una vista en sección del dispositivo de soporte de bolsas de la máquina de la invención; la Fig. 5, es una vista en planta de la plataforma de sustentación de bolsas de la máquina de la invención; y la Fig. 6, es una vista parcial en alzado de la plataforma de sustentación de bolsas de la máquina de la invención.BRIEF DESCRIPTION OF THE DRAWINGS The attached drawings illustrate, by way of non-limiting example, an embodiment of the continuous packaging machine object of the invention. In said drawings: Figs. 1 and 2, are partial partial plan views of the machine according to the invention; Fig. 3 is a perspective view of a bag support device of the machine of the invention; Fig. 4 is a sectional view of the bag support device of the machine of the invention; Fig. 5 is a plan view of the bag lift platform of the machine of the invention; and Fig. 6, is a partial elevational view of the bag lift platform of the machine of the invention.
Descripción detallada de los dibujosDetailed description of the drawings
En las Figs. 1 y 2 se aprecia que la máquina de envasado en continuo según la invención, que como ejemplo de realización se describe, comprende los siguientes elementos: una primera estación receptora 1 de bolsas; una guía anular 2; una segunda estación receptora 3; una estación de llenado de bolsas 4 con el producto a envasar; una estación de cierre de bolsas 5 llenas; y una estación de incorporación 6 de asa a las bolsas.In Figs. 1 and 2 it is appreciated that the continuous packaging machine according to the invention, which is described as an example of embodiment, comprises the following elements: a first bag receiving station 1; an annular guide 2; a second receiving station 3; a bag filling station 4 with the product to be packaged; a bag closing station 5 full; and a handle incorporation station 6 for the bags.
La primera estación receptora 1 de bolsas está adaptada para recibir bolsas de malla tubular de contorno de forma general cuadrangular con sus bordes laterales provistos de un plegado interior a modo de fuelle, teniendo su extremo superior abierto y su extremo inferior cerrado; las bolsas son suministradas en posición vertical por un dispositivo de entrega de bolsas, no representado.The first bag receiving station 1 is adapted to receive generally square-shaped tubular mesh bags with their lateral edges provided with an inner fold as a bellows, having its upper end open and its lower end closed; The bags are supplied vertically by a bag delivery device, not shown.
En la Fig. 1 se aprecia que la primera estación receptora 1 está provista de un carro 11 sobre el que puede deslizar un dispositivo de sujeción de bolsas 12 en ambos sentidos, indicados como A y B en la figura, entre dos posiciones, una primera posición de recepción de bolsas suministradas por el dispositivo de entrega, indicada mediante líneas a trazos, y una segunda posición situada en la segunda estación receptora 3, dibujada en trazo continuo. El dispositivo de sujeción 11 está dotado de dos elementos de sujeción 13 iguales dispuestos simétricamente respecto del eje del dispositivo, con capacidad de giro en ambos sentidos, indicados como C y D en la figura, alrededor de respectivos ejes 14 y entre dos posiciones, una primera de apertura, no representada, en la que el dispositivo de entrega suministra una bolsa 15, y una segunda de cierre en la que la bolsa 15 queda sujeta por su extremo superior.In Fig. 1 it can be seen that the first receiving station 1 is provided with a carriage 11 on which a bag holding device 12 can slide in both directions, indicated as A and B in the figure, between two positions, a first position of receiving bags supplied by the delivery device, indicated by dashed lines, and a second position located in the second receiving station 3, drawn in a continuous line. The clamping device 11 is provided with two equal clamping elements 13 arranged symmetrically with respect to the axis of the device, capable of turning in both directions, indicated as C and D in the figure, around respective axes 14 and between two positions, a first opening, not shown, in which the delivery device supplies a bag 15, and a second closing in which the bag 15 It is held by its upper end.
La guía anular 2, representada mediante líneas a trazos en la Fig. 2, comprende un arco esencialmente circunferencial 21 que cubre un ángulo de 180 grados, y un arco esencialmente elíptico 22 que cubre un ángulo de 180 grados. A la guía anular 2 están acoplados cuatro dispositivos de soporte 7 de bolsa 15 iguales dispuestos uno de otro a 90 grados. Los dispositivos de soporte 7 son desplazados simultáneamente girando en el sentido indicado como E, realizando giros de 90 grados y de modo que cada uno de ellos ocupa secuencialmente las siguientes posiciones: una primera posición I en un enlace del arco circunferencial 21 con el arco elíptico 22, correspondiente a la posición de la segunda estación receptora 3, ver Fig. 1 ; una segunda posición II en la mitad del arco elíptico 22, correspondiente a la posición de la estación de llenado 4; una tercera posición III en el otro enlace del arco circunferencial 21 con el arco elíptico 22, correspondiente a la posición de la estación de cierre 5 de bolsas 15; y, una cuarta posición IV en la mitad del arco circunferencial 21, correspondiente a la posición de la estación de incorporación de asa 6 a las bolsas 15. La guía anular 2 está provista en cada una de dichas posiciones I a IV de respectivos órganos accionadores 23, dotados por ejemplo de un cilindro neumático, cuya finalidad es la de provocar un desplazamiento de un correspondiente segmento de guía anular 2 hacia el centro de la misma, del modo representado como ejemplo y mediante líneas a trazos en la posición II, de la estación de llenado de bolsas 4 con el producto a envasar.The annular guide 2, represented by dashed lines in Fig. 2, comprises an essentially circumferential arc 21 covering an angle of 180 degrees, and an essentially elliptical arc 22 covering an angle of 180 degrees. To the annular guide 2 are coupled four equal support devices 7 of bag 15 arranged each other at 90 degrees. The support devices 7 are simultaneously displaced by turning in the direction indicated as E, making 90 degree turns and so that each of them sequentially occupies the following positions: a first position I at a link of the circumferential arc 21 with the elliptical arc 22, corresponding to the position of the second receiving station 3, see Fig. 1; a second position II in the middle of the elliptical arc 22, corresponding to the position of the filling station 4; a third position III on the other link of the circumferential arc 21 with the elliptical arc 22, corresponding to the position of the bag closing station 5; and, a fourth position IV in the middle of the circumferential arc 21, corresponding to the position of the handle incorporating station 6 to the bags 15. The annular guide 2 is provided in each of said positions I to IV of respective actuator organs 23, provided, for example, with a pneumatic cylinder, whose purpose is to cause a corresponding annular guide segment 2 to move towards the center thereof, in the manner shown as an example and by dashed lines in position II of the bag filling station 4 with the product to be packaged.
En la Fig. 3 se aprecia que cada uno de los dispositivos de soporte 7 de bolsas 15 comprende un marco 70, compuesto por dos guías 71 iguales y paralelas una respecto de la otra enlazadas por sus correspondientes extremos mediante respectivos elementos transversales de enlace 72, y dos mecanismos de soporte, un mecanismo de soporte exterior 73 y un mecanismo de soporte interior 75, acoplados a las guías 71 a través de respectivos y complementarios medios de acoplamiento 77, de modo que pueden ser desplazados deslizando sobre las mismas en ambos sentidos, indicados como F y G.In Fig. 3 it can be seen that each of the support devices 7 for bags 15 comprises a frame 70, composed of two guides 71 that are equal and parallel with respect to each other, connected by their corresponding ends by means of respective transverse link elements 72, and two support mechanisms, an external support mechanism 73 and an internal support mechanism 75, coupled to the guides 71 through respective and complementary coupling means 77, so that they can be displaced by sliding on them in both directions, indicated as F and G.
Los medios de acoplamiento 77 comprenden una cinta de accionamiento 78 y dos poleas 79 fijadas a correspondientes extremos de los elementos de enlace transversales 72, estando unido el mecanismo de soporte exterior 73 al ramal inferior de la cinta de accionamiento 78 y el mecanismo de soporte interior 75 al ramal superior de dicha cinta 78.The coupling means 77 comprise a drive belt 78 and two pulleys 79 fixed to corresponding ends of the link elements transverse 72, the outer support mechanism 73 being attached to the lower branch of the drive belt 78 and the inner support mechanism 75 to the upper branch of said belt 78.
El mecanismo de soporte interior 75 está provisto de un rodillo 74 adaptado para quedar alojado en el interior de la guía anular 2, consiguientemente, el giro del dispositivo de soporte 7 alrededor del eje de la guía anular 2 produce el acercamiento o alejamiento del mecanismo de soporte interior 75 a dicho eje y, simultáneamente, el correspondiente alejamiento o acercamiento a dicho eje del mecanismo de soporte exterior 73, por la acción de los medios de acoplamiento 77. Con estas disposiciones, el mecanismo de soporte exterior 73 y el mecanismo de soporte interior 75 ocupan una posición de apertura que se produce cuando el dispositivo de soporte 7 ocupa la posición II de llenado de bolsas con el producto a envasar - Fig. 2 -, y una posición de cierre que se produce cuando el dispositivo de soporte 7 ocupa las posiciones I, III y IV - Fig. 2 -.The inner support mechanism 75 is provided with a roller 74 adapted to be housed inside the annular guide 2, consequently, the rotation of the support device 7 around the axis of the annular guide 2 causes the approach or distance of the mechanism of interior support 75 to said axis and, simultaneously, the corresponding distance or approach to said axis of the external support mechanism 73, by the action of the coupling means 77. With these arrangements, the external support mechanism 73 and the support mechanism inside 75 occupy an opening position that occurs when the support device 7 occupies the position II of filling bags with the product to be packaged - Fig. 2 -, and a closing position that occurs when the support device 7 occupies Positions I, III and IV - Fig. 2 -.
El mecanismo de soporte exterior 73 y el mecanismo de soporte interior 75 están provistos de respectivas pinzas de sujeción 80 iguales y dispuestas enfrentadamente una respecto de la otra. En la Fig. 4 se aprecia que cada pinza de sujeción 80 comprende un brazo exterior 81 que está acoplado a las guías 71 , y un brazo interior 82, estando provisto el brazo exterior 81 de un alojamiento 83 adaptado para recibir al brazo interior 82. El brazo exterior 81 y el brazo interior 82 de cada pinza de sujeción 80 están mutuamente acoplados por medio de dos vastagos de guiado 84 y de dos resortes de cierre 85, adaptados de modo que cada vastago de guiado 84 atraviesa el brazo exterior 81 y está unido por uno de sus extremos al brazo interior 82, con capacidad de deslizamiento en ambos sentidos a través del brazo exterior 81 , en tanto que el resorte de cierre 85 trabaja permanentemente a compresión apoyando uno de sus extremos contra el extremo libre del vastago de guiado 84 y su otro extremo contra el brazo exterior 81. Con esta disposición de pinzas de sujeción 80, el brazo interior 82 puede ocupar respecto del brazo exterior 81 una posición de apertura mostrada en la Fig.4, adaptada para recibir un borde 86 del extremo superior de una bolsa 15, y una posición de cierre, no representada, en la que el borde 86 queda sujeto por la acción de las pinzas de sujeción 80. En la Fig. 4 se aprecia que el brazo interior 82 de las pinzas de sujeción 80 del mecanismo de soporte exterior 73 y el brazo interior 82 de las pinzas de sujeción 80 del mecanismo de soporte interior 75 están provistos de respectivos medios de enlace que comprenden en cada brazo interior 82 un resalte de enlace 87, un elemento de retención 88 con capacidad de desplazamiento vertical en ambos sentidos indicados como I y J, y un órgano accionador 89, mostrado en la Fig. 6, del elemento de retención 88, todo ello adaptado de modo que, encontrándose las pinzas de sujeción 80 en la posición de cierre mostrada en Fig.6, ambos resaltes de enlace 87 de los brazos interiores 82 pueden quedar alojados en el elemento de retención 88.The outer support mechanism 73 and the inner support mechanism 75 are provided with respective clamps 80 that are the same and arranged opposite each other. In Fig. 4 it can be seen that each clamp 80 comprises an outer arm 81 that is coupled to the guides 71, and an inner arm 82, the outer arm 81 being provided with a housing 83 adapted to receive the inner arm 82. The outer arm 81 and the inner arm 82 of each clamp 80 are mutually coupled by means of two guide rods 84 and two closing springs 85, adapted so that each guiding rod 84 crosses the outer arm 81 and is attached at one of its ends to the inner arm 82, with sliding capacity in both directions through the outer arm 81, while the closing spring 85 works permanently in compression, supporting one of its ends against the free end of the guide rod 84 and its other end against the outer arm 81. With this arrangement of clamps 80, the inner arm 82 can occupy with respect to the outer arm 81 an opening position shown in the Fig. 4, adapted to receive an edge 86 of the upper end of a bag 15, and a closed position, not shown, in which the edge 86 is held by the action of the clamps 80. In Fig. 4 it can be seen that the inner arm 82 of the clamps 80 of the outer support mechanism 73 and the inner arm 82 of the clamps 80 of the inner support mechanism 75 are provided with respective connecting means comprising in each inner arm 82 a link shoulder 87, a retaining element 88 with vertical displacement capability in both directions indicated as I and J, and an actuator member 89, shown in Fig. 6, of the retaining element 88, all this adapted so that, with the clamping clips 80 being in the closed position shown in Fig. 6, both link projections 87 of the inner arms 82 can be housed in the retaining element 88.
En la Fig. 1 se aprecia que la estación de cierre 5 de bolsas 15 está provista de un dispositivo de plegado 51, de un dispositivo de soldadura 52, ambos representados de forma esquemática, y de un dispositivo de troquelado no representado. El dispositivo de plegado 51 está adaptado para producir en el extremo superior de la bolsa 15 llena procedente de la estación de llenado de bolsas 4, un pliegue a modo de fuelle; el dispositivo de soldadura 52 está adaptado para proceder al cierre de la bolsa 15 llena con el pliegue realizado, mediante una o dos soldaduras transversales en la amplitud del extremo superior de la bolsa 15; y el dispositivo de troquelado está adaptado para producir una o varias aberturas entre ambas soldaduras transversales realizadas por el dispositivo de soldadura 52, teniendo dicha abertura/s funciones de asidero para facilitar el transporte de la bolsa llena por el usuario.In Fig. 1 it can be seen that the bag closing station 5 is provided with a folding device 51, a welding device 52, both schematically represented, and a die-cutting device not shown. The folding device 51 is adapted to produce at the top end of the filled bag 15 from the bag filling station 4, a bellows fold; the welding device 52 is adapted to proceed with the closure of the bag 15 filled with the fold made, by means of one or two transverse welds in the amplitude of the upper end of the bag 15; and the die cutting device is adapted to produce one or more openings between both transverse welds made by the welding device 52, said opening / s having handle functions to facilitate the transport of the full bag by the user.
En la Fig. 1 se detalla que la estación de incorporación de asa 6 a las bolsas 15 está provista de un dispositivo de incorporación de asa, no representado, y de un dispositivo de soldadura 61 representado de forma esquemática, adaptado para producir una soldadura transversal en la amplitud del extremo superior de la bolsa 15.In Fig. 1 it is detailed that the handle incorporation station 6 to the bags 15 is provided with a handle incorporation device, not shown, and a welding device 61 schematically represented, adapted to produce a transverse weld in the amplitude of the upper end of the bag 15.
Los dispositivos de soldadura, de troquelado y de incorporación de asa a las bolsas llenas y dotadas con pliegues a modo de fuelle, de las estaciones de cierre 5 y de incorporación de asa 6, pueden operar coordinadamente del modo que se describe seguidamente. Una primera variante de cierre de bolsas 15 provistas de pliegues a modo de fuelle, consiste en realizar en la estación de cierre 5 de bolsas 15 dos soldaduras transversales y un troquelado entre ambas configurando un asidero, mediante los dispositivos de soldadura 52 y del dispositivo de troquelado respectivamente; en este caso la estación de incorporación de asa 6 no realiza ninguna operación sobre la bolsa 15 llena. Y, una segunda variante de cierre de bolsas 15 provistas de pliegues a modo de fuelle, consiste en realizar en la estación de cierre 5 de bolsas 15 una soldadura transversal mediante el dispositivo de soldadura 52, y posteriormente en la estación de incorporación de asa 6 a las bolsas 15, disponer una porción de asa en el interior del extremo cerrado de la bolsa 15 y centradamente respecto de la misma mediante el dispositivo de incorporación de asa, para seguidamente proceder a realizar una soldadura transversal en la amplitud del extremo superior de la bolsa 15 mediante el dispositivo de soldadura 61, por encima de la soldadura transversal realizada por el dispositivo de soldadura 52 de la estación de cierre 5, quedando el asa soldada al extremo superior de la bolsa 15.Welding, die-cutting and handle incorporation devices to bags filled with bellows folds, closing stations 5 and handle incorporation 6, can operate in a coordinated manner It is described below. A first variant of closure of bags 15 provided with bellows folds, consists in carrying out in the closure station 5 of bags 15 two transverse welds and a die-cutting between both of them configuring a handle, by means of welding devices 52 and the device of die cut respectively; in this case the handle incorporation station 6 does not perform any operation on the full bag 15. And, a second variant of closure of bags 15 provided with bellows-like folds, consists in carrying out in the closing station 5 of bags 15 a transverse welding by means of the welding device 52, and later in the handle incorporating station 6 to the bags 15, arrange a handle portion inside the closed end of the bag 15 and centered thereon by means of the handle incorporating device, to then proceed to carry out a transversal welding in the amplitude of the upper end of the bag 15 by means of the welding device 61, above the transverse welding performed by the welding device 52 of the closing station 5, the handle being welded to the upper end of the bag 15.
En las Figs. 5 y 6 puede apreciarse que la máquina de envasado de la invención comprende una plataforma de sustentación 9 de bolsas 15, de forma general de corona circular y coaxialmente dispuesta respecto del eje de la guía anular 2, constituida por un segmento principal 91 y por un segmento basculante 92, éste último con capacidad de basculación en los dos sentidos indicados como L y M, impulsado por un órgano accionador 94, por ejemplo un cilindro neumático. La plataforma de sustentación 9 comprende además cuatro soportes 93 iguales entre sí, de material flexible y de contorno esencialmente cuadrangular; tres soportes apoyados por su extremo exterior al segmento principal 91 y un soporte apoyado al segmento basculante 92, en tanto que todos ellos están unidos a respectivos mecanismos de traslación vertical 95 que, a efectos de simplificación, han sido representados parcialmente.In Figs. 5 and 6 it can be seen that the packaging machine of the invention comprises a support platform 9 of bags 15, generally of a circular crown and coaxially arranged with respect to the axis of the annular guide 2, constituted by a main segment 91 and a tilting segment 92, the latter with tilting capacity in the two directions indicated as L and M, driven by an actuator 94, for example a pneumatic cylinder. The support platform 9 further comprises four supports 93 equal to each other, of flexible and essentially quadrangular contour material; three supports supported by their outer end to the main segment 91 and a support supported to the tilting segment 92, while all of them are connected to respective vertical translation mechanisms 95 which, for the purpose of simplification, have been partially represented.
La plataforma de sustentación 9 está adaptado para girar en el sentido indicado como E, que es el correspondiente al de giro de los dispositivos de soporte de bolsa 7, estando los soportes flexibles 93 adaptados para soportar las bolsas 15 llenas transportadas por los dispositivos de soporte 7 de bolsas. The support platform 9 is adapted to rotate in the direction indicated as E, which corresponds to the rotation of the bag support devices 7, the flexible supports 93 being adapted to support the full bags 15 carried by the support devices 7 bags

Claims

R E I V I N D I C A C I O N E S
1.- Máquina de envasado en continuo, para bolsas de malla tubular suministradas en posición vertical por un dispositivo de entrega, teniendo las bolsas un contorno esencialmente cuadrangular con sus bordes laterales provistos de un plegado interior a modo de fuelle, en tanto que su extremo superior es abierto y su extremo inferior está provisto de un fondo, que se caracteriza por comprender:1.- Continuous packaging machine, for tubular mesh bags supplied vertically by a delivery device, the bags having an essentially quadrangular contour with its lateral edges provided with an inner folding as a bellows, while its end upper is open and its lower end is provided with a bottom, which is characterized by comprising:
- una primera estación receptora (1) de bolsas (15) procedentes del dispositivo de entrega; - una guía anular (2) cuyo perímetro comprende un arco esencialmente cirfunferencial (21) de 180 grados y un arco esencialmente elíptico (22) de 180 grados, a la que están acoplados cuatro dispositivos de soporte (7) de bolsa (15) iguales y situados a 90 grados uno del otro, desplazables simultáneamente realizando giros de 90 grados y de modo que cada uno de ellos ocupa secuencialmente una primera posición en un enlace del arco circunferencial (21) con el arco elíptico (22), una segunda posición en la mitad del arco elíptico (22), una tercera posición en el otro enlace del arco circunferencial (21) con el arco elíptico (22) y una cuarta posición en la mitad del arco circunferencial (21);- a first receiving station (1) of bags (15) from the delivery device; - an annular guide (2) whose perimeter comprises an essentially circumferential arc (21) of 180 degrees and an essentially elliptical arc (22) of 180 degrees, to which four equal support devices (7) of bag (15) are coupled and located at 90 degrees from each other, simultaneously movable by turning 90 degrees and so that each of them sequentially occupies a first position in a link of the circumferential arc (21) with the elliptical arc (22), a second position in half of the elliptical arc (22), a third position in the other link of the circumferential arc (21) with the elliptical arc (22) and a fourth position in the middle of the circumferential arc (21);
- .una segunda estación receptora (3) de bolsas (15) suministradas por la primera estación receptora (1) de bolsas (15) y de recepción de bolsas (15) llenas y cerradas, situada enfrentadamente a la primera estación receptora (1) de bolsas (15) y en la primera posición de los dispositivos de soporte (7) de bolsa (15);- a second receiving station (3) of bags (15) supplied by the first receiving station (1) of bags (15) and receiving bags (15) full and closed, located opposite the first receiving station (1) of bags (15) and in the first position of the bag support devices (7) (15);
- una estación de llenado (4) de bolsas (15) con el producto a envasar, situada en la segunda posición de los dispositivos de soporte (7) de bolsa (15); - una estación de cierre (5) de bolsas (15) llenas, situada en la tercera posición de los dispositivos de soporte (7) de bolsa (15); y- a filling station (4) for bags (15) with the product to be packaged, located in the second position of the bag support devices (7) (15); - a closing station (5) of full bags (15), located in the third position of the bag support devices (7) (15); Y
- una estación de incorporación de asa (6) a las bolsas (15), situada en la cuarta posición de los dispositivos de soporte (7) de bolsa (15).- a handle incorporation station (6) to the bags (15), located in the fourth position of the bag support devices (7) (15).
2.- Máquina según la reivindicación 1 , que se caracteriza porque la primera estación receptora (1) está dotada de un carro (11) provisto de un dispositivo de sujeción (12) de bolsas (15), teniendo el carro (11) capacidad de desplazamiento lineal de vaivén entre el dispositivo de entrega de bolsas (15) y la segunda estación receptora (3) de bolsas (15). 2. Machine according to claim 1, characterized in that the first receiving station (1) is provided with a carriage (11) provided with a device for holding bags (12) (15), the carriage (11) having capacity of reciprocating linear displacement between the bag delivery device (15) and the second bag receiving station (3) (15).
3.- Máquina según la reivindicación 2, que se caracteriza porque el dispositivo de sujeción (12) de bolsas (15) comprende dos elementos de sujeción3. Machine according to claim 2, characterized in that the holding device (12) for bags (15) comprises two holding elements
(13) enfrentados con capacidad de desplazamiento entre dos posiciones, una primera de apertura para la recepción de la bolsa (15) y una segunda de cierre para la sujeción de la misma por su extremo superior.(13) facing each other with the ability to move between two positions, a first opening to receive the bag (15) and a second closing to hold it by its upper end.
4.- Máquina según la reivindicación 1 , que se caracteriza porque cada dispositivo de soporte (7) de bolsa comprende un marco (70) constituido por dos guías paralelas (71) una respecto de la otra enlazadas por sus extremos homólogos mediante respectivos elementos transversales de enlace (72), un mecanismo de soporte exterior (73) y un mecanismo de soporte interior (75) provistos de respectivas pinzas de sujeción (80) de los bordes (86) del extremo superior de la bolsa (15), estando ambos mecanismos de soporte (73, 75) unidos a las guías paralelas (71) por respectivos medios de acoplamiento (77).4. Machine according to claim 1, characterized in that each bag support device (7) comprises a frame (70) constituted by two parallel guides (71) relative to each other linked by their homologous ends by respective transverse elements of connection (72), an external support mechanism (73) and an internal support mechanism (75) provided with respective clamps (80) of the edges (86) of the upper end of the bag (15), both being support mechanisms (73, 75) attached to the parallel guides (71) by respective coupling means (77).
5.- Máquina según la reivindicación 4, que se caracteriza porque el mecanismo de soporte exterior (73) y el mecanismo de soporte interior (75) tienen capacidad de deslizamiento simétrico y alternativo sobre dichas dos guías paralelas (71 ) entre dos posiciones, una posición de apertura para el llenado de la bolsa (15) con el producto a envasar y una posición de cierre de la bolsa (15).5. Machine according to claim 4, characterized in that the external support mechanism (73) and the internal support mechanism (75) have symmetrical and alternative sliding capacity on said two parallel guides (71) between two positions, a opening position for filling the bag (15) with the product to be packed and a closing position of the bag (15).
6.- Máquina según la reivindicación 4, que se caracteriza porque los medios de acoplamiento (77) comprenden una cinta de accionamiento (78) y dos poleas (79) situadas en los elementos transversales de enlace (72), estando fijado el mecanismo de soporte exterior (73) a un ramal de la cinta (78) , en tanto que el mecanismo de soporte interior (75) está fijado al otro ramal de la cinta (78).6. Machine according to claim 4, characterized in that the coupling means (77) comprise a drive belt (78) and two pulleys (79) located in the transverse link elements (72), the locking mechanism being fixed outer support (73) to one branch of the belt (78), while the inner support mechanism (75) is fixed to the other branch of the tape (78).
7.- Máquina según la reivindicación 4, que se caracteriza porque el mecanismo de soporte interior (75) está acoplado a la guía anular (2), de modo que el mecanismo de soporte interior (75) y el mecanismo de soporte exterior (73) ocupan la posición de abierto en la posición segunda del dispositivo de soporte (7) de bolsa (15), y ocupan la posición de cerrado en las posiciones primera, tercera y cuarta del dispositivo de soporte (7) de bolsa (15). 7. Machine according to claim 4, characterized in that the inner support mechanism (75) is coupled to the annular guide (2), so that the inner support mechanism (75) and the outer support mechanism (73 ) occupy the open position in the second position of the bag support device (7) (15), and occupy the closed position in the first, third and fourth positions of the bag support device (7) (15).
8.- Máquina según la reivindicación 4, que se caracteriza porque cada una de las pinzas de sujeción (80) comprende un brazo exterior (81) y un brazo interior (82) provistos de respectivas superficies planas enfrentadas, estando el brazo exterior (81) dotado de un alojamiento (83) adaptado para la recepción del brazo interior (82) y estando ambos brazos unidos por unos medios de acoplamiento adaptados de modo que el brazo interior (82) puede ocupar respecto del brazo exterior (81) una posición de apertura para la recepción de un borde (86) del extremo superior de la bolsa (15), y una posición de cierre adaptada para la sujeción de dicho borde (86) entre las superficies enfrentadas de los brazos exterior (81 ) y interior (82).8. Machine according to claim 4, characterized in that each of the clamps (80) comprises an outer arm (81) and an inner arm (82) provided with respective flat surfaces facing each other, the outer arm (81) being ) equipped with a housing (83) adapted for the reception of the inner arm (82) and both arms being joined by coupling means adapted so that the inner arm (82) can occupy a position of relative to the outer arm (81) opening for receiving an edge (86) of the upper end of the bag (15), and a closed position adapted for securing said edge (86) between the facing surfaces of the outer (81) and inner (82) arms ).
9.- Máquina según la reivindicación 8, que se caracteriza porque los medios de acoplamiento comprenden dos vastagos de guiado (84), paralelos uno respecto del otro que atraviesan el brazo exterior (81) y que están unidos por uno de sus extremos al brazo interior (82), teniendo ambos vastagos (84) capacidad de deslizamiento en ambos sentidos a través del brazo exterior (81 ), estando provisto cada vastago (84) de un resorte de cierre (85) cargado de modo que permanentemente tiende a situar al brazo exterior (81 ) en la posición de cierre.9. Machine according to claim 8, characterized in that the coupling means comprise two guide rods (84), parallel to each other that cross the outer arm (81) and which are connected at one end to the arm interior (82), both rods (84) having sliding capacity in both directions through the outer arm (81), each rod (84) being provided with a loaded closing spring (85) so that it permanently tends to place the outer arm (81) in the closed position.
10,-.Máquina según la reivindicación 8, que se caracteriza porque el brazo exterior (81) de las pinzas de sujeción (80) del mecanismo de soporte exterior (73) y el brazo exterior (81) de las pinzas de sujeción (80) del mecanismo de soporte interior (75), están provistos de respectivos medios de enlace.Machine according to claim 8, characterized in that the outer arm (81) of the clamps (80) of the outer support mechanism (73) and the outer arm (81) of the clamps (80) ) of the inner support mechanism (75), are provided with respective link means.
11.- Máquina según la reivindicación 10, que se caracteriza porque los medios de enlace comprenden en cada brazo interior (82) un resalte de enlace (87), un elemento de retención (88) adaptado para recibir ambos resaltes de enlace (87) y un órgano accionador (89).11. Machine according to claim 10, characterized in that the link means comprise in each inner arm (82) a link protrusion (87), a retaining element (88) adapted to receive both link protrusions (87) and an actuator (89).
12.- Máquina según la reivindicación 8, que se caracteriza porque el brazo exterior (81 ) de las pinzas de sujeción (80) del mecanismo de soporte interior (75) está acoplado a unos medios de tracción (74) que aproximan o alejan el mecanismo de soporte interior (75) al centro de la guía anular (2), con lo que aleja o aproxima respectivamente el mecanismo de soporte exterior (73) de dicho centro.12. Machine according to claim 8, characterized in that the outer arm (81) of the clamping clamps (80) of the inner support mechanism (75) is coupled to traction means (74) that approximate or move the inner support mechanism (75) to the center of the ring guide (2), thereby moving away or approach respectively the outer support mechanism (73) of said center.
13.- Máquina según la reivindicación 12, que se caracteriza porque los medios de tracción comprenden un órgano accionador (23).13. Machine according to claim 12, characterized in that the traction means comprise an actuator (23).
14.- Máquina según la reivindicación 1 , que se caracteriza porque la estación de cierre (5) de bolsas (15) está provista de un dispositivo de plegado (51 ), de un dispositivo de soldadura (52) y de un dispositivo de troquelado.14. Machine according to claim 1, characterized in that the bag closing station (5) (15) is provided with a folding device (51), a welding device (52) and a die-cutting device .
15,. Máquina de envasado en continuo según la reivindicación 14, que se caracteriza porque el dispositivo de plegado (51) produce en el extremo superior de la bolsa (15) un pliegue a modo de fuelle.fifteen,. Continuous packaging machine according to claim 14, characterized in that the folding device (51) produces at the upper end of the bag (15) a bellows fold.
16.- Máquina de envasado en continuo según la reivindicación 14, que se caracteriza porque el dispositivo de soldadura (52) realiza una soldadura transversal en la amplitud del extremo superior de la bolsa (15), cerrándola.16. Continuous packaging machine according to claim 14, characterized in that the welding device (52) performs a transversal welding in the amplitude of the upper end of the bag (15), closing it.
17.- Máquina de envasado en continuo según la reivindicación 14, que se caracteriza porque el dispositivo de soldadura (52) realiza una primera y una segunda soldaduras transversales en la amplitud del extremo superior de la bolsa (15), cerrándola, en tanto que el dispositivo de troquelado realiza como mínimo una abertura entre ambas soldaduras transversales, adaptada par facilitar el asimiento de la bolsa (15).17. Continuous packaging machine according to claim 14, characterized in that the welding device (52) performs a first and second transverse welds in the amplitude of the upper end of the bag (15), closing it, while The die cutting device makes at least one opening between both transverse welds, adapted to facilitate the holding of the bag (15).
18.- Máquina de envasado en continuo según las reivindicaciones 1 y 16, que se caracteriza porque la estación de incorporación de asa (6) a las bolsas (15) está provisto de un dispositivo de incorporación de asa a las bolsas (15) y de un dispositivo de soldadura (61 ).18. Continuous packaging machine according to claims 1 and 16, characterized in that the handle incorporation station (6) to the bags (15) is provided with a handle incorporation device to the bags (15) and of a welding device (61).
19.- Máquina de envasado en continuo según la reivindicación 17, que se caracteriza porque el dispositivo de incorporación de asa a las bolsas (15) dispone una porción del asa en el interior del extremo de la bolsa (15) cerrado por el dispositivo de soldadura (52) de la estación de cierre (5) de bolsas (15), centradamente respecto del eje longitudinal de la bolsa (15), en tanto que el dispositivo de soldadura (61) realiza una soldadura tranversal por encima de la soldadura transversal realizada por el dispositivo de soldadura (52) de la estación de cierre (5) de bolsas (15), quedando el asa soldada al extremo superior de la bolsa (15).19. Continuous packaging machine according to claim 17, characterized in that the handle incorporating device to the bags (15) has a portion of the handle inside the end of the bag (15) closed by the device welding (52) of the bag closing station (5) (15), centered with respect to the longitudinal axis of the bag (15), while the welding device (61) performs a transverse welding above the transverse welding performed by the welding device (52) of the bag closing station (5) (15), the handle being welded to the upper end of the bag ( fifteen).
20.- Máquina de envasado en continuo según la reivindicación 1 , que se caracteriza por estar provista de una plataforma de sustentación (9) de bolsas (15), regulable en altura, dispuesta por debajo de la guía anular (2).20. Continuous packaging machine according to claim 1, characterized in that it is provided with a lifting platform (9) for bags (15), adjustable in height, arranged below the annular guide (2).
21.- Máquina de envasado en continuo según la reivindicación 20, que se caracteriza porque la plataforma de sustentación (9) consiste en una corona circular dispuesta coaxialmente respecto del eje de la guía anular (2), provista de un segmento principal (91 ) y de un segmento basculante (92), sobre los que están acoplados cuatro soportes (93) de material flexible sobre los que apoyan las bolsas (15) llenas, transportadas por los dispositivos de soporte (7) de bolsas (15). 21. Continuous packaging machine according to claim 20, characterized in that the support platform (9) consists of a circular crown arranged coaxially with respect to the axis of the annular guide (2), provided with a main segment (91) and of a tilting segment (92), on which four supports (93) of flexible material are coupled on which the filled bags (15) rest, transported by the support devices (7) of bags (15).
PCT/ES2002/000360 2001-07-30 2002-07-17 Continuous packaging machine WO2003011693A1 (en)

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ESP200101774 2001-07-30
ES200101774A ES2189659B1 (en) 2001-07-30 2001-07-30 CONTINUOUS PACKAGING MACHINE.

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP1481899A1 (en) * 2003-05-30 2004-12-01 Giro GH S.A. Machine for manufacturing, filling and closing mesh bags from a continuous roll of tubular mesh

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Publication number Priority date Publication date Assignee Title
CN116654355B (en) * 2023-07-24 2023-09-26 成都工业学院 Pomegranate packaging device

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CH415423A (en) * 1962-09-12 1966-06-15 August Wickersheim Fa Method and device for producing and closing pouch packs made of tubular material
US3948019A (en) * 1973-01-15 1976-04-06 Siegrheinische Registrierwaagenfabrik "Fix" Peter Steimel Kg Apparatus for the fully automatic production of filled, gusseted bags of plastic
ES2082689A2 (en) * 1993-06-29 1996-03-16 Daumar Talleres Machine for filling reticulate sacks having closing and holding bands or the like
ES2161126A1 (en) * 1999-02-26 2001-11-16 Daumar Talleres Machine for manufacturing, filling, and closing bags of meshed fabric
US20010049924A1 (en) * 2000-04-08 2001-12-13 Agustin Dauder Guardiola In packing machines of products in mesh bags with handle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH415423A (en) * 1962-09-12 1966-06-15 August Wickersheim Fa Method and device for producing and closing pouch packs made of tubular material
US3948019A (en) * 1973-01-15 1976-04-06 Siegrheinische Registrierwaagenfabrik "Fix" Peter Steimel Kg Apparatus for the fully automatic production of filled, gusseted bags of plastic
ES2082689A2 (en) * 1993-06-29 1996-03-16 Daumar Talleres Machine for filling reticulate sacks having closing and holding bands or the like
ES2161126A1 (en) * 1999-02-26 2001-11-16 Daumar Talleres Machine for manufacturing, filling, and closing bags of meshed fabric
US20010049924A1 (en) * 2000-04-08 2001-12-13 Agustin Dauder Guardiola In packing machines of products in mesh bags with handle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1481899A1 (en) * 2003-05-30 2004-12-01 Giro GH S.A. Machine for manufacturing, filling and closing mesh bags from a continuous roll of tubular mesh
ES2253027A1 (en) * 2003-05-30 2006-05-16 Giro Gh, S.A. Machine for manufacturing, filling and closing mesh bags from a continuous roll of tubular mesh

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