ES2392087B1 - Cold die cutting machine for plastic film - Google Patents
Cold die cutting machine for plastic film Download PDFInfo
- Publication number
- ES2392087B1 ES2392087B1 ES201030581A ES201030581A ES2392087B1 ES 2392087 B1 ES2392087 B1 ES 2392087B1 ES 201030581 A ES201030581 A ES 201030581A ES 201030581 A ES201030581 A ES 201030581A ES 2392087 B1 ES2392087 B1 ES 2392087B1
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- Prior art keywords
- cylinder
- film
- rotating
- die
- plastic film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/06—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work
- B26F1/10—Roller type punches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
- B65G13/11—Roller frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
Abstract
Máquina de troquelado en frío para film (2) de plástico objeto de la invención comprende al menos un cilindro giratorio de entrada (10), un cilindro troquelador (4), un rodillo de arrastre (3), un sistema de tensionado (12), al menos un cilindro giratorio de salida (11), en la que en él, al menos, un cilindro giratorio de entrada (10) se suministra al menos una bobina de plástico sin tratar (1) a partir de la que se aporta un film (2) que pasa entre el rodillo de arrastre (3) y el cilindro troquelador (4) que le realiza un troquelado, sacando unos recortes del film (2), estando el film (2) tensionado por el sistema de tensionado (12) y siendo recogido por él, al menos, un cilindro giratorio de salida (11).Cold die cutting machine for plastic film (2) object of the invention comprises at least one rotating inlet cylinder (10), a die cutting cylinder (4), a drag roller (3), a tensioning system (12) At least one rotating outlet cylinder (11), in which at least one rotating inlet cylinder (10) is supplied with at least one untreated plastic coil (1) from which a film (2) that passes between the drive roller (3) and the die cutter cylinder (4) that makes a die cut, taking out some cuts of the film (2), the film (2) being tensioned by the tensioning system (12 ) and being picked up by it, at least, a rotating outlet cylinder (11).
Description
Máquina de troquelado en frío para film de plástico. Cold stamping machine for plastic film.
Objeto de la invención Object of the invention
La invención objeto de la presente solicitud de patente se encuadra en el sector de fabricación de maquinaria industrial destinada al tratamiento, transformación y adaptación de malerial plástico laminado. The invention object of the present patent application is part of the industrial machinery manufacturing sector for the treatment, transformation and adaptation of laminated plastic materials.
Problema técnico a resolver Technical problem to solve
El objetivo de disponer de plásticos micro o macroperforados es el de conlar con un material resistente, destinado fundamentalmente al embalaje en sistemas de paletizado, que permita una óptima ventilación sin crear barrera térmica, disminuyendo el consumo de materiales poliméricos pero sin reducir la resistencia mecánica. The objective of having micro or macroperforated plastics is to have a resistant material, mainly intended for packaging in palletizing systems, which allows optimum ventilation without creating a thermal barrier, reducing the consumption of polymeric materials but without reducing the mechanical resistance.
Actualmente, dentro del tratamiento del film de plastico, existen diversas técnicas de troquelado encaminadas a lograr un film perforado (microperforado y/o macroperforado) que se basan, fundamentalmente, en la aplicación de calor mediante resistencias eléctricas, radiación de calor o láser. Currently, within the treatment of the plastic film, there are various die cutting techniques aimed at achieving a perforated film (microperforated and / or macroperforated) that are based, fundamentally, on the application of heat by means of electrical resistors, heat radiation or laser.
Estos procesos actualmente existentes presentan el inconveniente de necesitar; por una lado una gran cantidad de energía para poder completar la troquelación propiamente, con sofisticados sistemas de control de temperatura y, por otro, son equipos muy sensibles a modificaciones de capacidad de producción y caracterlsticas del producto final por su gran complejidad. These currently existing processes have the inconvenience of needing; on the one hand a large amount of energy to complete the die-cutting itself, with sophisticated temperature control systems and, on the other, they are very sensitive equipment to production capacity modifications and characteristics of the final product due to its great complexity.
Por otro lado, la perforación en fria (sin aporte de calor) de cierto tipo de plásticos, fundamentalmente polietilenos que además son altamente empleados en los procesos de embalaje, ha supuesto siempre una dificultad técnica, hasta la fecha sin resolver, que ocasionaban un "mordido" en el borde del film perforada que hacia disminuir las propiedades de resistencia del film y su capacidad de estiramiento. generándose de manera adicional un excesivo desgaste en los útiles o herramientas de trabajo ocasionando un elevado coste de fabricación, generándose además un problema de dificil solución como es la limpieza o eliminación de los restos de la troquelación de manera efectiva y su transporte hasta el sistema de reciclado. On the other hand, cold drilling (without heat input) of certain types of plastics, mainly polyethylenes that are also highly used in packaging processes, has always been a technical difficulty, to date unresolved, that caused a " bitten "on the edge of the perforated film that reduced the strength properties of the film and its ability to stretch. additionally generating excessive wear on the tools or work tools causing a high manufacturing cost, also generating a problem of difficult solution such as cleaning or removal of the remains of the die cut effectively and its transport to the system of recycling.
Se trata por lo tanto de conseguir, mediante un proceso lo mas simplificado posible, una lámina de film macroperforado, para usar fundamentalmente para la sujeción de cargas paletizadas y el empaquetado de productos que por sus caracterlsticas necesitan ventilación, mediante un proceso de troquelado en frio reduciendo de esta manera el gasto energético y consiguiendo un proceso altamente modulable que permita. en un único proceso de troquelación. la obtención de una o varias láminas de film perforado, de una sola capa o de varias, adoptando en el proceso un eficaz sistema para la separación, recogida y recuperación de la parte perforada para su reciclaje o reutilización. It is therefore a matter of achieving, through a process as simplified as possible, a sheet of macroperforated film, to be used primarily for the securing of palletized loads and the packaging of products that, due to their characteristics, need ventilation, by means of a cold stamping process thus reducing energy expenditure and achieving a highly modular process that allows. in a single die cutting process. obtaining one or several sheets of perforated film, single layer or several, adopting in the process an effective system for the separation, collection and recovery of the perforated part for recycling or reuse.
Descripción de la invención. Description of the invention
La máquina de troquelado en fria para film de plástico comprende al menos un cilindro giratorio de entrada, un cilindro troquelador. un rodillo de arrastre, un sistema de tensionado y al menos un cilindro giratorio de salida. En la máquina objeto de la invención, en el, al menos, un cilindro giratorio de entrada se suministra al menos una bobina de plástico sin tratar a partir de la que se aporta un film que pasa entre el rod illo de arrastre y el cilindro troquelador que le realiza un troquelado, sacando unos recortes del film, estando el film tensionado por el sistema de tensionado y siendo recogido por el, al menos, un cilindro giratorio de salida. The cold die cutting machine for plastic film comprises at least one rotating inlet cylinder, a die cutting cylinder. a drive roller, a tensioning system and at least one rotating output cylinder. In the machine object of the invention, in the at least one rotating inlet cylinder, at least one untreated plastic coil is supplied from which a film is passed between the drive roller and the punching cylinder which makes a die cut, removing some cuts of the film, the film being tensioned by the tensioning system and being collected by the at least one rotating exit cylinder.
La máquina de troquelado en frIa objeto de la invención comprende una varilla y un aspirador, que formando un sistema de limpieza y recogida automático de recuperación del material sobrante, en el que la varilla impulsa aire a presión que separa los recortes obtenido por el troquelado y el aspirador recoge esos recortes que la varilla impulsa. The cold stamping machine object of the invention comprises a rod and a vacuum cleaner, which forming an automatic cleaning and collection system for recovering the excess material, in which the rod drives pressurized air that separates the cuts obtained by the die cutting and the vacuum cleaner picks up those cuts that the rod drives.
La máquina de troquelado en frío dispone de un cilindro troquelador que es intercambiable mediante un sistema de engranajes. The cold die cutting machine has a die cutting cylinder that is interchangeable by a gear system.
En la máquina de troquelado en fria objeto de la invención se suministra film mediante al menos un cilindro giratorio de entrada y se recoge mediante al menos un cilindro giratorio de salida, existiendo la posibilidad de obtener un film monocapa o multicapa. In the cold die cutting machine object of the invention, film is supplied by at least one rotating inlet cylinder and is collected by at least one rotating outgoing cylinder, there being the possibility of obtaining a monolayer or multilayer film.
Si se suministra film en un numero de bobinas de plástico sin tratar instaladas en sus respectivos cilindros giratorios de entrada mayor de una y, el film ya troquelado, se recoge en un unico cilindro giratorio de salida, se obtiene un film de tantas capas como bobinas de plástico sin tratar se instalen en los correspondientes cilindros giratorios de entrada. Si se suministran tantas bobinas de plástico sin tratar como diferentes films se recogen en diferenles cilindros giratorios de salida, se obtienen varios films de una única capa todos ellos troquelados a la vez. If film is supplied in a number of untreated plastic reels installed in their respective rotating input cylinders greater than one and, the film already punched, is collected in a single rotating output cylinder, a film of as many layers as coils is obtained of untreated plastic are installed in the corresponding rotating inlet cylinders. If so many untreated plastic reels are supplied as different films are collected in different rotating outgoing cylinders, several films of a single layer are obtained, all of them punched out at once.
ES 2 392 087 Al ES 2 392 087 Al
Breve descripción de las figuras Brief description of the figures
Se acompanan a la presente memoria una serie de figuras descriptivas del proceso, que pretenden ilustrar de manera gráfica la máquina que realiza el proceso de fabricación anteriormente descrito. A series of descriptive figures of the process are attached to the present specification, which are intended to illustrate graphically the machine that performs the manufacturing process described above.
La figura 1 muestra una vista lateral del conjunto de la máquina. Figure 1 shows a side view of the machine assembly.
la figura 2 muestra un mismo esquema simplificado de la máquina objeto de la invención. Figure 2 shows the same simplified scheme of the machine object of the invention.
La figura 3 muestra la variante descrita para n bobinas de enlrada y n bobinas de salida (se representan dos de entrada y dos de salida por la claridad del dibujo). Figure 3 shows the variant described for n enlisting coils and n output coils (two input and two output are represented by the clarity of the drawing).
la figura 4 muestra la variante descrita para 2n bobinas de entrada-n bobinas de salida (se representa las combinaciones 2·1 y 4-2 por Simplicidad en el dibujo) con lo que se obtiene un film multicapa. 2 en este caso. Figure 4 shows the variant described for 2n input coils-n output coils (the combinations 2 · 1 and 4-2 are represented by Simplicity in the drawing) with which a multilayer film is obtained. 2 in this case.
A continuación se proporciona una lista de los distintos elementos representados en tas figuras que integran la invención: The following is a list of the different elements represented in the figures that make up the invention:
1.-bobina de plástico sin tratar. 1.-untreated plastic coil.
2.-film, 2.-film,
3.-rodillo de arrastre, 3.-drag roller,
4.-cilindro troquelador, 4.-cylinder die cutter,
5.-eje, 5.-axis,
6.-varilla perforada, 6.-perforated rod,
7.-cuadro de mandos, 7.-dashboard,
8.-aspirador. 8.-vacuum cleaner.
9.-conducto. 9.-duct.
10.-cilindro giratorio de entrada, 10.-rotating input cylinder,
11 .-cilindro giratorio de salida, 11.-swivel output cylinder,
12.-sistema de tensionado, 12.-tensioning system,
13.-juego de rodillos. 13.-roller set.
Descripción detallada de la invención Detailed description of the invention
la máquina de troquelado en frfo para film de pláslico objeto de la invención tiene por objeto la elaboración de una lámina (monocapa o mullicapa) de film (2) macroperforado mediante un proceso de troquelado en frío. Tanto el tamaño como la geometría y la disposición de las perforaciones del macroperforado, se pueden modificar en función de las aplicaciones deseadas para el producto final. Para lograr este objetivo se ha ideado un sistema tal que, una vez alimentada la bobina (o bobinas) de film (2) de plástico se procede a la alimentación de film (2) para el desbobinado automático que alimenta un doble rodillo que gira de manera solidaria. Uno de estos cilindros, el troquelador, dispone en su superfiCie de un conjunto de relieves, con la disposición y la forma deseada. The object of the invention is to produce a sheet (monolayer or multi-layer) of macroperforated film (2) by means of a cold stamping process. Both the size and the geometry and the arrangement of the perforations of the macroperforated, can be modified according to the desired applications for the final product. To achieve this objective, a system has been devised that, once the plastic film coil (or coils) (2) is fed, the film (2) is fed for automatic unwinding that feeds a double roller that rotates from solidarity way. One of these cylinders, the die cutter, has on its surface a set of reliefs, with the desired layout and shape.
Todo el conjunto troquelador está conformado en acero templado. El film (2), al pasar entre los dos rodillos se ve sometido a una presión tal que el cilindro troquelador consigue que se produzca el corte, completo y limpio, de cada uno de los agujeros a practicar, The entire die set is made of tempered steel. The film (2), when passing between the two rollers, is subjected to a pressure such that the die-cutting cylinder achieves the complete and clean cutting of each of the holes to be made,
Esta presión se regula a conveniencia mediante un sistema de manómetros hidráulicos de presión en función del material a troquelar y el espesor del mismo. This pressure is regulated conveniently by a system of hydraulic pressure gauges depending on the material to be punched and its thickness.
Una vez que la lámina o láminas de plástico han sido troqueladas. se inyecta, por la parte inferior y a través de una varilla perlorada, aire a presión consiguiendo que el malerial sobrante que resulta de realizar las perforaCiones en el plástico, (unos discos) sea separado de la lámina troquelada. Once the plastic sheet or sheets have been punched out. Pressure air is injected from the bottom and through a pierced rod, allowing the excess material resulting from drilling the holes in the plastic (some discs) to be separated from the die-cut sheet.
Este sistema de recuperación se completa por un sistema de aspiraCión en continuo, situado justo encima de la varilla y por encima de la lámina de plástico, haciendo que los restos de material (discos cortados) sean aspirados y conducidos hasta un depósito de recepción para su reciclaje. la lámina queda así macroperlorada y lista para ser nuevamente bobinada en un rodillo situado al final de la Ilnea. This recovery system is completed by a continuous aspiration system, located just above the rod and above the plastic sheet, causing the remains of material (cut discs) to be aspirated and conducted to a receiving tank for recycling. the sheet is thus macroperlorated and ready to be wound again in a roller located at the end of the line.
El conjunto se ve completado con un dispositivo mecánico de rodillos que permite mantener la tensión de la lámina de plástico constante mientras se produce el troquelado y ta recuperación, También, se ha dotado a la máqUina de un sistema de engranajes que permite, de manera sencilla, proceder al cambio del cilindro troquelador según la necesidad del producto final. The assembly is completed with a mechanical roller device that allows to keep the tension of the plastic sheet constant while the stamping and recovery takes place. Also, the machine has been equipped with a gear system that allows, in a simple way , proceed to change the die cutter cylinder according to the need of the final product.
Todo el proceso se realiza con sistemas contrastados que reducen la electricidad estática que este tipo de material posee de manera natural. The whole process is carried out with proven systems that reduce the static electricity that this type of material naturally possesses.
ES 2 392 087 Al ES 2 392 087 Al
El proceso de fabricación que se lleva a cabo en la máquina de troquelado en frio para film (2) de plastico es como sigue: la bobina de plástico sin tratar (1) es desbobinada y el film (2) pasa a través de los rodillos de arrastre (3) y el troquelador (4), efectuándose sobre el eje (5) el ajuste de presión requerido. La varilla perforada (6) colocada debajo del film (2) troquelado deja pasar el aire que es introducido a presión por su extremo (7), produciéndose la separación de la parte de plástico sobrante que es recogido en el aspirador (8) y conducido a través del conducto The manufacturing process carried out in the cold die cutting machine for plastic film (2) is as follows: the untreated plastic coil (1) is unwound and the film (2) passes through the rollers drag (3) and the punch (4), the required pressure adjustment being made on the shaft (5). The perforated rod (6) placed under the die-cut film (2) lets the air that is pressurized through its end (7) pass, resulting in the separation of the part of excess plastic that is collected in the vacuum cleaner (8) and conducted through the duct
(9) hasta la zona de recogida (según se puede observar en las figuras 2 y 3). (9) to the collection area (as can be seen in figures 2 and 3).
Según la figura 1, que muestra una vista lateral del conjunto de la máquina, la máquina comprende: -al menos un cilindro giratorio de entrada (10) y al menos un cilindro giratorio de salida (11) en los que se insertan las bobinas de material de entrada y salida . Entre el, al menos un cilindro giratorio de entrada (10) y el, al menos, un cilindro giratorio de salida (11) se obtiene un giro eficaz sin deslizamiento, mediante un sistema de ajuste automático que actúa sobre unos mandriles de las bobinas. -un cilindro troquelador (4), -un sistema de tensionado (12) que permite a la lámina de plástico pasar por el proceso de troquelado con tensión prácticamente constante, y -un cuadro de mandos (14). According to Figure 1, which shows a side view of the machine assembly, the machine comprises: - at least one rotating inlet cylinder (10) and at least one rotating outgoing cylinder (11) in which the coils of input and output material. Between the at least one rotating input cylinder (10) and the at least one rotating output cylinder (11) an effective rotation without sliding is obtained, by means of an automatic adjustment system that acts on the mandrels of the coils. -a die-cutting cylinder (4), -a tensioning system (12) that allows the plastic sheet to go through the die-cutting process with practically constant tension, and -a control panel (14).
Cuando se alimentan mediante los cilindros giratorios de entrada (10) varias bobinas, el film (2) perforado para a través de un juego de rodillos (13) que, o bien separa en lámina monocapa o bien realiza una lámina monocapa. When several coils are fed by means of the rotating inlet cylinders (10), the film (2) drilled through a set of rollers (13) that either separates into single layer sheet or makes a single layer sheet.
La lámina perforada es sometida al proceso de recuperación de la parte troquelada mediante el soplado que se efectúa a través de la varilla perforada (6), y los discos recortados son aspirados por el aspirador (8) y conducidos a la zona de depósito para su reciclaje. The perforated sheet is subjected to the process of recovering the die-cut part by blowing through the perforated rod (6), and the cut-out discs are aspirated by the vacuum cleaner (8) and taken to the storage area for recycling.
la separación de las láminas se efectúa a la salida del proceso de recuperación del recorte, por lo que el proceso de troquelado es simultáneo para las dos láminas. The separation of the sheets is carried out at the exit of the process of recovering the cut, so that the die-cutting process is simultaneous for the two sheets.
El sistema así diseñado permite una multiplicidad de opciones de entrada salida que pueden consistir en: -una bobina de entrada-una bobina de salida (1e-1s) obteniendo as! un film (2) monocapa macroperforado: -n bobinas de entrada-n bobinas de salida (ne-ns) siendo n el número de bobinas acopladas a la entrada y a la salida, obteniéndose de esta manera n bobinas de film (2) monocapa macroperforada: -2n bobinas de entrada-n bobinas de salida (2ne-ns) obteniendo asl ene bobinas de salida de film (2) mullicapa macroperforada. The system thus designed allows a multiplicity of output input options that can consist of: -a input coil-an output coil (1e-1s) thus obtaining! a macroperforated monolayer film (2): -n input coils-n output coils (ne-ns) where n is the number of coils coupled to the input and output, thus obtaining n film coils (2) macroperforated monolayer : -2n input coils-n output coils (2ne-ns) thus obtaining film output coils (2) macroperforated mullicapa.
las combinaciones así obtenidas serian prácticamente ilimitadas. the combinations thus obtained would be practically unlimited.
ES 2 392 087 Al ES 2 392 087 Al
Claims (4)
- --
- un rodillo de arrastre (3), a drive roller (3),
- --
- un sistema de tensionado (12), a tensioning system (12),
- --
- al menos un cilindro giratorio de salida (11), at least one rotating outlet cylinder (11),
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201030581A ES2392087B1 (en) | 2010-04-21 | 2010-04-21 | Cold die cutting machine for plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201030581A ES2392087B1 (en) | 2010-04-21 | 2010-04-21 | Cold die cutting machine for plastic film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2392087A1 ES2392087A1 (en) | 2012-12-04 |
| ES2392087B1 true ES2392087B1 (en) | 2013-10-18 |
Family
ID=47178384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201030581A Active ES2392087B1 (en) | 2010-04-21 | 2010-04-21 | Cold die cutting machine for plastic film |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2392087B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2619420B1 (en) * | 2015-11-24 | 2018-03-20 | Francisco RUIZ BERNAL | EXTENSIBLE POLYOLEFIN FILM OBTAINABLE BY THE UNION OF TWO OR MORE COEXTRUSIONED POLYOLEFIN COATS AND METHOD FOR OBTAINING |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4635316A (en) * | 1985-06-26 | 1987-01-13 | Teepak, Inc. | Methods and apparatus for perforating food casing film and casing produced thereby |
| DE3936038C2 (en) * | 1989-10-28 | 1995-04-20 | Stiegler Maschf Gmbh | Device for transferring an intermittently moving web into a continuously moving web, in particular for the production of bag chains from thermoplastic film |
| BE1006751A3 (en) * | 1993-02-17 | 1994-11-29 | Mach Service N V Naamloze Venn | Method for perforating FOIL AND device which applies this method. |
| JPH10113726A (en) * | 1996-10-09 | 1998-05-06 | Topy Ind Ltd | Shearing punching method in two stages in same direction |
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2010
- 2010-04-21 ES ES201030581A patent/ES2392087B1/en active Active
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| Publication number | Publication date |
|---|---|
| ES2392087A1 (en) | 2012-12-04 |
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