WO2009153359A1 - Electrical lifting device for thermoshaping machines - Google Patents
Electrical lifting device for thermoshaping machines Download PDFInfo
- Publication number
- WO2009153359A1 WO2009153359A1 PCT/ES2008/000431 ES2008000431W WO2009153359A1 WO 2009153359 A1 WO2009153359 A1 WO 2009153359A1 ES 2008000431 W ES2008000431 W ES 2008000431W WO 2009153359 A1 WO2009153359 A1 WO 2009153359A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support plate
- columns
- servomotor
- actuator shaft
- movement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
- B65B65/02—Driving gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
- B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/16—Lining or labelling
Definitions
- the present invention relates to an electric lifting device for thermoforming machines.
- thermoforming machines products are packaged between a top film sheet and a bottom film sheet.
- the lower film sheet serves to form a series of housings or cavities in which the products to be packaged are deposited which are subsequently closed by means of the upper film sheet.
- These machines include:
- a forming station comprising one mold and a counter mold, one of which is fixed while the other moves vertically, with respect to the advance of the lower film sheet, forming cavities along the film sheet.
- the electric lifting mechanism for thermoforming machines is of the type used in the forming, welding and cutting of plastic materials in thermoforming machines and comprising a linearly movable plate for fixing the corresponding forming, welding or cutting tooling.
- this lifting mechanism comprises: columns on which a tool support plate is mounted with the possibility of longitudinal displacement, a base and supports for fixing the columns in the thermoforming machine, a connected servomotor to an electronic control device and mechanically coupled to an actuator shaft that has at least one arm acting on the support plate by means of the corresponding connecting rod coupled to the arm and to the support plate by means of articulated paths with respective rotation axes , transforming the rotation movement provided by the servomotor in a linear, forward or reverse movement of the support plate along the columns.
- the servomotor is coupled to the actuator shaft by means of a mechanical transmission of the turning movement.
- this mechanical transmission comprises two pulleys, associated respectively to the axis of the servomotor and to the actuator axis, and a belt that transmits the rotation movement of the servomotor to the actuator axis.
- the actuator axis comprises at least two parallel arms, oriented radially with respect to the actuator axis and defining an intermediate space for housing the end of the corresponding connecting rod, without the possibility of lateral displacement, ensuring that the movement of the connecting rod is made in a plane perpendicular to the actuator shaft.
- the connecting rod has a curved profile, to avoid interference with the actuator shaft during its movement between the extreme angular positions of the arm or arms, corresponding to the extreme positions of the support plate, and in which said arms are arranged in diametrically opposite positions with respect to the actuator axis and oriented parallel to the displacement columns of the support plate.
- FIG. 1 shows a perspective view of an embodiment of the electric lifting mechanism for thermoforming machines.
- FIG. 2 shows a schematic elevation view of the mechanism with the tool support plate in the lower end position.
- FIG. 3 shows a view analogous to the previous one, partially sectioned, to allow the observation of the articulated connecting rods on the arms of the actuator shaft and on the support plate of the tooling.
- FIG. 4 shows a schematic elevation view of the mechanism with the tool support plate in the upper end position.
- Figure 5 shows a view analogous to Figure 4, partially sectioned, in which the curved profile connecting rod can be observed in the lower position, without interfering with the actuator shaft.
- the lifting mechanism comprises a base (1) on which are fixed columns (2) associated at their upper end with supports (3) that compact the mechanism when they are fixed in a thermoforming machine.
- a servo motor (4) is mounted, which is commanded by an electronic control device (41) that includes a pulse generator and its corresponding electronic system.
- the shaft (42) of the servomotor (4) is connected to the actuator shaft (6) by means of a mechanical transmission (5) of the movement of turn.
- said mechanical transmission (5) comprises a pulley (51) fixed to the axis (42) of the servomotor (4), a pulley (52) fixed to the actuator shaft (6) and a belt (53) that relates said pulleys (51, 52), transmitting the rotational movement of the servomotor (4) to the actuator shaft (6).
- the actuator shaft (6) has parallel arms (7), radially oriented and related to a support plate (9), mounted on the columns (2), by means of connecting rods (8) that transform the turning movement of the actuator shaft (6) in a linear displacement movement of the support plate (9) along the columns (2).
- the forming, welding or cutting tools are fixed, which have not been represented as being interchangeable and not being part of the lifting mechanism object of the invention.
- the ends of the connecting rods (8) are related to the arms (7) and the support plate (9) by means of two joints represented by the respective axes (71, 91).
- connecting rods (8) with a curved profile allows said connecting rods not to interfere with the actuator shaft (6) when the support plate (9) reaches the lower position.
- the servomotor generates a 180 ° movement, clockwise, to cause the upward vertical displacement of the support plate (9) from the lower position, represented in figures 2 and 3, to the upper position represented in Figures 4 and 5, and a movement in the opposite direction, of the same amplitude, to cause the lowering of the support plate to the initial lower position.
- the connecting rods (8) are in an upright position, in order to withstand the high pressures generated by the forming, welding and cutting systems in thermoforming machines.
- the electronic control device (41) feeds the servomotor to generate an anti-clockwise movement, and the lowering of the support plate (9) to the initial rest point or, in its case, until an intermediate point of the route, from which a new work cycle will begin.
- the stop of the support plate (9) at an intermediate point of the descent race can be carried out with exactitude by means of the management of the information that the electronic control device (41) and, specifically the pulse generator, sends to the control electronic, which generates a braking force absorbing the inertia created by the moving mass.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
DESCRIPCIÓN DESCRIPTION
DISPOSITIVO DE ELEVACIÓN ELÉCTRICO PARA MÁQUINAS TERMOFORMADORAS.ELECTRICAL ELEVATION DEVICE FOR THERMOFORMING MACHINES.
Objeto de Ia invenciónObject of the invention
La presente invención se refiere a un dispositivo de elevación eléctrico para máquinas termoformadoras.The present invention relates to an electric lifting device for thermoforming machines.
Antecedentes de Ia invención.Background of the invention.
En las maquinas termoformadoras los productos se empaquetan entre una lamina de film superior y una lámina de film inferior. La lámina de film inferior sirve para conformar una serie de alojamientos o cavidades en los cuales se depositan los productos a envasar que posteriormente se cierran mediante Ia lámina de film superior. Estas maquinas comprenden:In thermoforming machines, products are packaged between a top film sheet and a bottom film sheet. The lower film sheet serves to form a series of housings or cavities in which the products to be packaged are deposited which are subsequently closed by means of the upper film sheet. These machines include:
- una estación de formado que comprende uno molde y un contramolde, uno de los cuales es fijo mientras que el otro se desplaza verticalmente, respecto del avance de Ia lámina de film inferior, conformando cavidades a Io largo de Ia lámina de film.- a forming station comprising one mold and a counter mold, one of which is fixed while the other moves vertically, with respect to the advance of the lower film sheet, forming cavities along the film sheet.
- una estación de soldadura y corte en Ia cual se cierran superiormente las cavidades con Ia lámina de film superior y se cortan el film superior e inferior obteniendo envases individuales con los productos ya empaquetados. Estas estaciones generalmente forman parte de una misma maquina.- a welding and cutting station in which the cavities are closed superiorly with the upper film sheet and the upper and lower film are cut obtaining individual packages with the products already packaged. These stations are generally part of the same machine.
Obviamente existe una fase de llenado de las cavidades con los productos que se produce antes del sellado con Ia lámina superior.Obviously there is a phase of filling the cavities with the products that are produced before sealing with the top sheet.
En las estaciones de formado, soldadura y corte de las máquinas termoformadoras, es conocida Ia utilización de mecanismos de elevación de los respectivos utillajes, de formado, soldadura y corte. Estos mecanismos de elevación utilizan cilindros neumáticos como generadores de movimiento para las operaciones de elevación y descenso de Ia placa portadora del utillaje, y presentan ciertos inconvenientes si se pretende una velocidad de operación de ascenso y descenso elevada, o un posicionamiento preciso o parada en su carrera de descenso diferente a Ia final inferior de Ia misma.In the forming, welding and cutting stations of thermoforming machines, the use of lifting mechanisms of the respective tools, forming, welding and cutting is known. These lifting mechanisms use pneumatic cylinders as motion generators for the lifting and lowering operations of the tooling carrier plate, and present certain drawbacks if a high ascent and lowering operating speed is intended, or a precise positioning or stop in its descent race different from the lower end thereof.
Estos inconvenientes están determinados por Ia dificultad de absorción, por parte del sistema neumático, de Ia energía generada por Ia inercia de Ia masa en movimiento. Por tanto, el problema técnico que se plantea es el desarrollo de un mecanismo de elevación que permita trabajar a alta velocidad y controlar el recorrido de Ia placa de soporte del utillaje entre dos puntos cualesquiera, situados entre las dos posiciones extremas de recorrido máximo.These drawbacks are determined by the difficulty of absorption, by the pneumatic system, of the energy generated by the inertia of the moving mass. Therefore, the technical problem that arises is the development of a lifting mechanism that allows working at high speed and controlling the path of the tool support plate between any two points, located between the two extreme positions of maximum travel.
Descripción de Ia invenciónDescription of the invention
El mecanismo de elevación eléctrico para máquinas termoformadoras; objeto de Ia invención, es del tipo de los empleados en las estaciones de formado, soldadura y corte de materiales plásticos en máquinas termoformadoras y que comprenden una placa desplazable linealmente para Ia fijación del correspondiente utillaje formador, soldador o de corte.The electric lifting mechanism for thermoforming machines; The object of the invention is of the type used in the forming, welding and cutting of plastic materials in thermoforming machines and comprising a linearly movable plate for fixing the corresponding forming, welding or cutting tooling.
De acuerdo con Ia invención este mecanismo de elevación comprende: unas columnas sobre las que se encuentra montada una placa de soporte del utillaje con posibilidad de desplazamiento longitudinal, una base y unos soportes para Ia fijación de las columnas en Ia máquina termoformadora, un servomotor conectado a un dispositivo electrónico de control y acoplado mecánicamente a un eje actuador que presenta al menos un brazo que actúa sobre Ia placa de soporte por medio de Ia correspondiente biela acoplada al brazo y a Ia placa de soporte por medio de sendas articulaciones con respectivos ejes de giro, transformando el movimiento de giro proporcionado por el servomotor en un desplazamiento lineal, de avance o retroceso, de Ia placa de soporte a Io largo de las columnas .In accordance with the invention, this lifting mechanism comprises: columns on which a tool support plate is mounted with the possibility of longitudinal displacement, a base and supports for fixing the columns in the thermoforming machine, a connected servomotor to an electronic control device and mechanically coupled to an actuator shaft that has at least one arm acting on the support plate by means of the corresponding connecting rod coupled to the arm and to the support plate by means of articulated paths with respective rotation axes , transforming the rotation movement provided by the servomotor in a linear, forward or reverse movement of the support plate along the columns.
La utilización de un servomotor, comandado mediante un dispositivo electrónico de control, para generar el movimiento de giro que es transmitido a Ia placa, por parte de Ia biela, en forma de movimiento lineal, permite controlar de forma precisa Ia velocidad y el recorrido de Ia placa, solucionando los problemas planteados por Ia utilización de un accionamiento neumático en este tipo de mecanismos de elevación. De acuerdo con Ia invención, el servomotor se encuentra acoplado al eje actuador por medio de una transmisión mecánica del movimiento de giro. En una realización de Ia invención esta transmisión mecánica comprende dos poleas, asociadas respectivamente al eje del servomotor y al eje actuador, y una correa transmisora del movimiento de giro del servomotor al eje actuador.The use of a servomotor, commanded by an electronic control device, to generate the turning movement that is transmitted to the plate, by the connecting rod, in the form of a linear movement, allows to precisely control the speed and the path of The plate, solving the problems posed by the use of a pneumatic drive in this type of lifting mechanisms. In accordance with the invention, the servomotor is coupled to the actuator shaft by means of a mechanical transmission of the turning movement. In an embodiment of the invention, this mechanical transmission comprises two pulleys, associated respectively to the axis of the servomotor and to the actuator axis, and a belt that transmits the rotation movement of the servomotor to the actuator axis.
En una realización de Ia invención el eje actuador comprende al menos dos brazos paralelos, orientados radialmente respecto al eje actuador y que definen un espacio intermedio para el alojamiento del extremo de Ia correspondiente biela, sin posibilidad de desplazamiento lateral, garantizando que el movimiento de Ia biela se realice en un plano perpendicular al eje actuador.In an embodiment of the invention, the actuator axis comprises at least two parallel arms, oriented radially with respect to the actuator axis and defining an intermediate space for housing the end of the corresponding connecting rod, without the possibility of lateral displacement, ensuring that the movement of the connecting rod is made in a plane perpendicular to the actuator shaft.
Según una realización de Ia invención, Ia biela presenta un perfil curvo, para evitar Ia interferencia con el eje actuador durante su desplazamiento entre las posiciones angulares extremas del brazo o brazos, correspondientes a las posiciones extremas de Ia placa de soporte, y en las que dichos brazos se disponen en posiciones diametralmente opuestas respecto al eje actuador y orientados paralelamente a las columnas de desplazamiento de Ia placa de soporte.According to an embodiment of the invention, the connecting rod has a curved profile, to avoid interference with the actuator shaft during its movement between the extreme angular positions of the arm or arms, corresponding to the extreme positions of the support plate, and in which said arms are arranged in diametrically opposite positions with respect to the actuator axis and oriented parallel to the displacement columns of the support plate.
Descripción de las figuras.Description of the figures.
Para complementar Ia descripción que se está realizando y con objeto de facilitar Ia comprensión de las características de Ia invención, se acompaña a Ia presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado Io siguiente:To complement the description that is being made and with In order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to the present specification in which, as an illustration and not limitation, the following has been represented:
- La figura 1 muestra una vista en perspectiva de un ejemplo de realización del mecanismo de elevación eléctrico para máquinas termoformadoras.- Figure 1 shows a perspective view of an embodiment of the electric lifting mechanism for thermoforming machines.
- La figura 2 muestra una vista esquemática en alzado del mecanismo con Ia placa de soporte del utillaje en Ia posición extrema inferior. - La figura 3 muestra una vista análoga a Ia anterior, parcialmente seccionada, para permitir Ia observación de las bielas articuladas sobre los brazos del eje actuador y sobre Ia placa de soporte del utillaje.- Figure 2 shows a schematic elevation view of the mechanism with the tool support plate in the lower end position. - Figure 3 shows a view analogous to the previous one, partially sectioned, to allow the observation of the articulated connecting rods on the arms of the actuator shaft and on the support plate of the tooling.
- La figura 4, muestra una vista esquemática en alzado del mecanismo con Ia placa de soporte del utillaje en Ia posición extrema superior.- Figure 4 shows a schematic elevation view of the mechanism with the tool support plate in the upper end position.
- La figura 5 muestra una vista análoga a Ia figura 4, parcialmente seccionada, en Ia que se puede observar Ia biela de perfil curvo en Ia posición inferior, sin interferir con el eje actuador.- Figure 5 shows a view analogous to Figure 4, partially sectioned, in which the curved profile connecting rod can be observed in the lower position, without interfering with the actuator shaft.
Realización preferente de Ia invenciónPreferred embodiment of the invention
En el ejemplo de realización mostrado en las figuras adjuntas, el mecanismo de elevación comprende una base (1) sobre Ia que se encuentran fijadas unas columnas (2) asociadas por su extremo superior a unos soportes (3) que compactan el mecanismo cuando son fijados en una máquina termoformadora.In the exemplary embodiment shown in the attached figures, the lifting mechanism comprises a base (1) on which are fixed columns (2) associated at their upper end with supports (3) that compact the mechanism when they are fixed in a thermoforming machine.
En Ia base (1) se encuentra montado un servomotor (4) que es comandado por un dispositivo electrónico de control (41) que incluye un generador de impulsos y su correspondiente sistema electrónico. El eje (42) del servomotor (4) está conectado con el eje actuador (6) por medio de una transmisión mecánica (5) del movimiento de giro. En el ejemplo mostrado dicha transmisión mecánica (5) comprende una polea (51) fijada al eje (42) del servomotor (4), una polea (52) fijada al eje actuador (6) y una correa (53) que relaciona dichas poleas (51 , 52), transmitiendo el movimiento de giro del servomotor (4) al eje actuador (6). El eje actuador (6) dispone de unos brazos (7) paralelos, orientados radialmente y relacionados con una placa soporte (9), montada sobre las columnas (2), por medio de unas bielas (8) que transforman el movimiento de giro del eje actuador (6) en un movimiento de desplazamiento lineal de Ia placa de soporte (9) a Io largo de las columnas (2). Sobre Ia placa de soporte (9), montada con posibilidad de desplazamiento a Io largo de las columnas (2), se fijan los utillajes de formado, soldadura o corte, que no se han representado por ser intercambiables y no formar parte del mecanismo elevador objeto de Ia invención. Los extremos de las bielas (8) se encuentran relacionados con los brazos (7) y Ia placa de soporte (9) por medio de sendas articulaciones representadas por los respectivos ejes (71 , 91).In the base (1) a servo motor (4) is mounted, which is commanded by an electronic control device (41) that includes a pulse generator and its corresponding electronic system. The shaft (42) of the servomotor (4) is connected to the actuator shaft (6) by means of a mechanical transmission (5) of the movement of turn. In the example shown, said mechanical transmission (5) comprises a pulley (51) fixed to the axis (42) of the servomotor (4), a pulley (52) fixed to the actuator shaft (6) and a belt (53) that relates said pulleys (51, 52), transmitting the rotational movement of the servomotor (4) to the actuator shaft (6). The actuator shaft (6) has parallel arms (7), radially oriented and related to a support plate (9), mounted on the columns (2), by means of connecting rods (8) that transform the turning movement of the actuator shaft (6) in a linear displacement movement of the support plate (9) along the columns (2). On the support plate (9), mounted with the possibility of moving along the columns (2), the forming, welding or cutting tools are fixed, which have not been represented as being interchangeable and not being part of the lifting mechanism object of the invention. The ends of the connecting rods (8) are related to the arms (7) and the support plate (9) by means of two joints represented by the respective axes (71, 91).
Tal como se observa en Ia figura 3, Ia utilización de bielas (8) de perfil curvo permite que dichas bielas no interfieran con el eje actuador (6) cuando Ia placa de soporte (9) alcanza Ia posición inferior.As can be seen in Figure 3, the use of connecting rods (8) with a curved profile allows said connecting rods not to interfere with the actuator shaft (6) when the support plate (9) reaches the lower position.
En el ejemplo mostrado, el servomotor genera un movimiento de 180°, en sentido horario, para provocar el desplazamiento vertical ascendente de Ia placa de soporte (9) desde Ia posición inferior, representada en las figuras 2 y 3, hasta Ia posición superior representada en las figuras 4 y 5, y un movimiento en sentido contrario, de Ia misma amplitud, para provocar el descenso de Ia placa de soporte hasta Ia posición inferior inicial.In the example shown, the servomotor generates a 180 ° movement, clockwise, to cause the upward vertical displacement of the support plate (9) from the lower position, represented in figures 2 and 3, to the upper position represented in Figures 4 and 5, and a movement in the opposite direction, of the same amplitude, to cause the lowering of the support plate to the initial lower position.
En Ia posición superior de Ia placa de soporte (9) las bielas (8) están en posición vertical, con el objeto de soportar las altas presiones que generan los sistemas de formado, soldadura y corte en las máquinas termoformadoras. Una vez realizadas las operaciones de formado, soldadura o corte, el dispositivo electrónico de control (41) alimenta el servomotor para generar un movimiento antihorario, y el descenso de Ia placa de soporte (9) hasta el punto de reposo inicial o, en su caso, hasta un punto intermedio del recorrido, desde el que se iniciará un nuevo ciclo de trabajo.In the upper position of the support plate (9) the connecting rods (8) are in an upright position, in order to withstand the high pressures generated by the forming, welding and cutting systems in thermoforming machines. Once the forming, welding or cutting operations have been carried out, the electronic control device (41) feeds the servomotor to generate an anti-clockwise movement, and the lowering of the support plate (9) to the initial rest point or, in its case, until an intermediate point of the route, from which a new work cycle will begin.
La parada de Ia placa de soporte (9) en un punto intermedio de Ia carrera de descenso, puede realizarse con exactitud mediante Ia gestión de Ia información que el dispositivo electrónico de control (41) y, concretamente el generador de impulsos, envía al control electrónico, el cual genera una fuerza de frenado absorbiendo Ia inercia creada por Ia masa en movimiento.The stop of the support plate (9) at an intermediate point of the descent race, can be carried out with exactitude by means of the management of the information that the electronic control device (41) and, specifically the pulse generator, sends to the control electronic, which generates a braking force absorbing the inertia created by the moving mass.
Esta característica permite ajustar de forma precisa Ia longitud de Ia carrera de Ia placa de soporte (9) a las necesidades de cada instalación y trabajar a una velocidad elevada. Una vez descrita suficientemente Ia naturaleza de Ia 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 Ia invención que se reivindican a continuación. This feature allows you to precisely adjust the length of the stroke of the support plate (9) to the needs of each installation and work at a high speed. Once the nature of the invention has been sufficiently described, as well as an example of 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 characteristics of the invention that are claimed below.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2008/000431 WO2009153359A1 (en) | 2008-06-16 | 2008-06-16 | Electrical lifting device for thermoshaping machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2008/000431 WO2009153359A1 (en) | 2008-06-16 | 2008-06-16 | Electrical lifting device for thermoshaping machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009153359A1 true WO2009153359A1 (en) | 2009-12-23 |
Family
ID=41433722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2008/000431 Ceased WO2009153359A1 (en) | 2008-06-16 | 2008-06-16 | Electrical lifting device for thermoshaping machines |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2009153359A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2297074A (en) * | 1995-01-17 | 1996-07-24 | Ibaraki Seiki Mach Co | Sealing apparatus for packaging machine |
| WO1997038905A1 (en) * | 1996-04-17 | 1997-10-23 | Tetra Pak Hoyer A/S | A packaging machine |
| US20020170269A1 (en) * | 2001-05-18 | 2002-11-21 | Liao Jonathan I.N. | End sealing device of packaging system |
| US6662527B1 (en) * | 2002-12-19 | 2003-12-16 | Ibaraki Seiki Machinery Company, Ltd. | Bag forming-filling-packaging machine |
| US20070135285A1 (en) * | 2005-12-13 | 2007-06-14 | David Schiebout | Reciprocating sealer for web converters |
-
2008
- 2008-06-16 WO PCT/ES2008/000431 patent/WO2009153359A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2297074A (en) * | 1995-01-17 | 1996-07-24 | Ibaraki Seiki Mach Co | Sealing apparatus for packaging machine |
| WO1997038905A1 (en) * | 1996-04-17 | 1997-10-23 | Tetra Pak Hoyer A/S | A packaging machine |
| US20020170269A1 (en) * | 2001-05-18 | 2002-11-21 | Liao Jonathan I.N. | End sealing device of packaging system |
| US6662527B1 (en) * | 2002-12-19 | 2003-12-16 | Ibaraki Seiki Machinery Company, Ltd. | Bag forming-filling-packaging machine |
| US20070135285A1 (en) * | 2005-12-13 | 2007-06-14 | David Schiebout | Reciprocating sealer for web converters |
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