WO2013034781A1 - Máquina macroperforadora para film plástico - Google Patents

Máquina macroperforadora para film plástico Download PDF

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Publication number
WO2013034781A1
WO2013034781A1 PCT/ES2011/070624 ES2011070624W WO2013034781A1 WO 2013034781 A1 WO2013034781 A1 WO 2013034781A1 ES 2011070624 W ES2011070624 W ES 2011070624W WO 2013034781 A1 WO2013034781 A1 WO 2013034781A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine
macroperforating
plastic film
die
plastic
Prior art date
Application number
PCT/ES2011/070624
Other languages
English (en)
French (fr)
Inventor
Francisco Ruiz Bernal
Original Assignee
Francisco Ruiz Bernal
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 Francisco Ruiz Bernal filed Critical Francisco Ruiz Bernal
Priority to ES11872004.4T priority Critical patent/ES2657390T3/es
Priority to PCT/ES2011/070624 priority patent/WO2013034781A1/es
Priority to EP11872004.4A priority patent/EP2803456B1/en
Priority to US14/342,559 priority patent/US20140224090A1/en
Publication of WO2013034781A1 publication Critical patent/WO2013034781A1/es

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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
    • 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
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B26F1/42—Cutting-out; Stamping-out using a press, e.g. of the ram type having a pressure roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • 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
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • 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
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3846—Cutting-out; Stamping-out cutting out discs or the like
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a roller
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7437—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating tool
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/749—Removing scrap
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/242—With means to clean work or tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8752—Tool moves work to and against cooperating tool

Definitions

  • the invention object of the patent is part of the industrial machinery manufacturing sector for the treatment, transformation and adaptation of laminated plastic material.
  • micro or macroperforated plastics are 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.
  • the machine for manufacturing macroperforated plastic ⁇ lm by means of cold stamping process and equipped with an automated system for the recovery of the excess cutout for recycling object of the invention aims at the elaboration of a sheet (monolayer or multilayer) of macroperforated ⁇ lm through a cold die cutting process. Both the size and geometry and the arrangement of the holes can be modified depending on the desired applications for the final product.
  • a system has been devised so that, once the plastic film reel (or reels) is fed, the automatic rewind film is fed that feeds a double roller that rotates in solidarity.
  • One of these cylinders, the die cutter has a set of reliefs on its surface, with the desired layout and shape. The entire die set is made of tempered steel.
  • the film when passing between both 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 practiced.
  • This pressure can be adjusted conveniently thanks to a system of hydraulic pressure gauges depending on the material to be punched and the thickness thereof.
  • pressurized air is injected, by the bottom and through a perforated rod, thus achieving that the cut disc is separated from the punched sheet.
  • This recovery system is completed by a continuous suction system located just above the rod and above the plastic sheet, causing the remains of material (cut-out discs) to be aspirated and conducted to a receiving tank for recycling.
  • the sheet is thus macroperforated and ready to be wound again in a roller located at the end of the line.
  • the assembly is completed with a mechanical roller device that keeps the tension of the plastic sheet constant while the die-cutting and recovery process takes place.
  • the machine has been equipped with a gear system that allows the change of the die cylinder according to the need of the final product.
  • the system thus designed allows a multiplicity of output input options (e-s) that may consist of; an input coil-an output coil (le-ls) thus obtaining a macroperforated monolayer film; Jan input coils-Jan output coils (ne-ns) where Jan (n) is the number of coils coupled to the input and output, thus obtaining coils of macroperforated monolayer film; 2 Jan input coils-Jan output coils (2ne-ns) thus obtaining Jan coils of macroperforated multilayer film.
  • the combinations thus obtained would be virtually unlimited. Description of the drawings
  • Figure 1 shows a side view of the machine assembly.
  • the letters A and B refer to rotating cylinders in which the coils of input and output material are inserted. To achieve an effective rotation without sliding, these cylinders have a pneumatic adjustment system that acts on the mandrels of the coils.
  • the letter C represents the tensioning system that allows the plastic sheet to go through the die-cutting process with practically constant tension.
  • the perforated sheet is subjected to the recovery process of the die-cut part by means of the blowing that is carried out through the rod E and the trimming is aspirated by F and taken to the deposit area for recycling.
  • the punching cylinder G and the control panel H are represented.
  • Figure 2 shows a simplified scheme of the process of unwinding, punching, cleaning and recovery and winding of the macroperf.
  • Figure 3 like Figure 2, shows the same scheme, but identifying the most significant part of the process;
  • the untreated plastic coil (1) is unwound and the film (2) passes through the drive rollers (3) and die cutter (4), the required pressure adjustment being made on the shaft (5).
  • the perforated rod (6) placed under the die-cut film allows the air that is pressurized to pass through its end (7), resulting in the separation of the part of the excess plastic that is collected in the vacuum cleaner (8) and conducted through the conduit (9) to the collection area.
  • Figure 4 shows the variant described for n input coils-n output coils (two input and two output are represented by the clarity of the drawing). The separation of the sheets is carried out at the exit of the process of recovering the trimming, so that the die-cutting process is simultaneous for the two sheets.
  • Figure 5 shows the variant described for 2n input coils-n output coils (combinations 2-1 and 4-2 are represented for simplicity in the drawing) with which a multilayer film is obtained, 2 in this case.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Máquina para fabricación de film de plástico macroperforado mediante proceso de troquelado en frío, mediante rodillos de arrastre (3) y troquelador (4), con ajuste de presión; y dotado de un sistema automatizado, para la recuperación del recorte sobrante para su reciclaje (8) y cuyo objeto es la elaboración de una lamina (monocapa o multicapa) de film macroperforado, para ser utilizado fundamentalmente en el embalaje de sistemas de paletizado, permitiendo una óptima ventilación, sin crear barrera térmica, disminuyendo el consumo de materiales poliméricos pero sin reducir la resistencia mecánica.

Description

MÁQUINA MACROPERFORADORA PARA FILM PLÁSTICO
Sector de la técnica
La invención objeto de patente se encuadra en el sector de fabricación de maquinaria industrial destinada al tratamiento, transformación y adaptación de material plástico laminado.
Estado de la técnica
El objetivo de disponer de plásticos micro o macroperforados es el de contar 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.
Actualmente, dentro del tratamiento del ñlm de plástico, existen diversas técnicas de troquelado encaminadas a lograr un ñlm perforado (microperforado y/o macroperforado) que se basan, fundamentalmente, en la aplicación de calor mediante resistencias eléctricas, radiación de calor o láser.
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 características del producto final por su gran complejidad.
Por otro lado, la perforación en frío (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 perforado que hacía 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 difícil solución como es la limpieza o eliminación de los restos de la troquelación de manera efectiva y su transporte hasta el sistema de reciclado.
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 características necesitan ventilación, mediante un proceso de troquelado en frío 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. Descripción detallada de la invención
La máquina para fabricación de ñlm de plástico macroperforado mediante proceso de troquelado en frío y dotado de un sistema automatizado para la recuperación del recorte sobrante para su reciclaje objeto de la invención tiene por objeto la elaboración de una lámina (monocapa o multicapa) de ñlm macroperforado mediante un proceso de troquelado en frío. Tanto el tamaño como la geometría y la disposición de los agujeros 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 de plástico se proceda a la alimentación de film 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. Todo el conjunto troquelador está conformado en acero templado. El film, al pasar entre ambos 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 practicas. Esta presión puede ser regulada a conveniencia gracias a un sistema de manómetros hidráulicos de presión en función del material a troquelar y el espesor del mismo. Una vez que la lámina o láminas de plástico han sido troqueladas, se inyecta, por la parte inferior y a través de una varilla perforada, aire a presión consiguiendo de esta manera que el disco cortado sea separado de la lámina troquelada. Este sistema de recuperación se ve completado 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 recortados) sean aspirados y conducidos hasta un depósito de recepción para su reciclaje. La lámina queda así macroperforada y lista para ser nuevamente bobinada en un rodillo situado al final de la línea.
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 proceso de troquelado y recuperación. Así mismo, 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.
Todo el proceso se realiza se realiza con sistemas contrastados para reducir la electricidad estática que este tipo de material posee de manera natural.
El sistema así diseñado permite una multiplicidad de opciones de entrada salida (e-s) que pueden consistir en; una bobina de entrada-una bobina de salida (le-ls) obteniendo así un film monocapa macroperforado; ene bobinas de entrada-ene bobinas de salida (ne-ns) siendo ene (n) el número de bobinas acopladas a la entrada y a la salida, obteniéndose de esta manera ene bobinas de film monocapa macroperforada; 2 ene bobinas de entrada-ene bobinas de salida (2ne-ns) obteniendo así ene bobinas de salida de film multicapa macroperforada. Las combinaciones así obtenidas serían prácticamente ilimitadas. Descripción de los dibujos
Se acompañan a la presente memoria una serie de dibujos descriptivos del proceso que pretenden ilustrar de manera gráfica el proceso de fabricación anteriormente descrita. La figura 1 muestra una vista lateral del conjunto de la máquina. Las letras A y B hacen referencia a unos cilindros giratorios en los que se insertan las bobinas de material de entrada y salida. Para conseguir un giro eficaz sin deslizamiento, estos cilindros disponen de un sistema de ajuste neumático que actúa sobre los mandriles de las bobinas. La letra C representa el sistema de tensionado que permite a la lámina de plástico pasar por el proceso de troquelado con tensión prácticamente constante. Cuando se alimentan en A varias bobinas, el film perforado pasa a través de los juegos de rodillos D para, o bien separarse en láminas mono capa o bien conformar una lámina monocapa. La lámina perforada es sometida al proceso de recuperación de la parte troquelada mediante el soplado que se efectúa a través de la varilla E y el recorte es aspirado por F y conducido a la zona de depósito para su reciclaje. En esta misma figura aparecen representados el cilindro troquelador G y el cuadro de mandos H.
La figura 2 muestra un esquema simplificado del proceso de desbobinado, troquelado, sistema de limpieza y recuperación y bobinado del material macroperf orado.
La figura 3, al igual que la figura 2, muestra el mismo esquema, pero identificando las parte mas significativas del proceso; la bobina plástico sin tratar (1) es desbobinada y el film (2) pasa a través de los rodillos de arrastre (3) y troquelador (4), efectuándose sobre el eje (5) el ajuste de presión requerido. La varilla perforada (6) colocada debajo del film 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 (9) hasta la zona de recogida.
La figura 4 muestra la variante descrita para n bobinas de entrada-n bobinas de salida (se representan dos de entrada y dos de salida por la claridad del dibujo). 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.
La figura 5 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.

Claims

Reivin dicacion es
1. Máquina macroperforadora para ñlm plástico caracterizada por efectuar un troquelado en frío por presión regulable.
2. Máquina macroperforadora que, según reivindicación 1 caracterizada por que permite realizar macroperforaciones a una o varias láminas plásticas de manera simultánea con diferentes figuras geométricas de troquelado
3. Máquina macroperforadora para film plástico según reivindicaciones anteriores caracterizada por su modularidad, compacidad y bajo consumo energético
4. Máquina macroperforadora para film plástico según reivindicación 1 caracterizada por disponer de un sistema de limpieza y recogida automático para recuperación del sobrante 5. Máquina macroperforadora según reivindicación 1 caracterizada por disponer de un sistema para el intercambio de rodillos troqueladores que permite la fabricación de productos con diferentes acabados aptos para su utilización directa o previo pre-estiramiento del material 6. Máquina macroperforadora para film plástico según reivindicaciones anteriores caracterizada por disponer de un juego de rodillos que permite obtener una lámina monocapa o multicapa según las necesidades del producto final
PCT/ES2011/070624 2011-09-05 2011-09-05 Máquina macroperforadora para film plástico WO2013034781A1 (es)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES11872004.4T ES2657390T3 (es) 2011-09-05 2011-09-05 Máquina de troquelado de un film de plástico
PCT/ES2011/070624 WO2013034781A1 (es) 2011-09-05 2011-09-05 Máquina macroperforadora para film plástico
EP11872004.4A EP2803456B1 (en) 2011-09-05 2011-09-05 Stamping machine for plastic film
US14/342,559 US20140224090A1 (en) 2011-09-05 2011-09-05 Macroperforator Machine for Plastic Film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2011/070624 WO2013034781A1 (es) 2011-09-05 2011-09-05 Máquina macroperforadora para film plástico

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WO2013034781A1 true WO2013034781A1 (es) 2013-03-14

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PCT/ES2011/070624 WO2013034781A1 (es) 2011-09-05 2011-09-05 Máquina macroperforadora para film plástico

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US (1) US20140224090A1 (es)
EP (1) EP2803456B1 (es)
ES (1) ES2657390T3 (es)
WO (1) WO2013034781A1 (es)

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PL3541708T3 (pl) * 2016-11-15 2022-07-25 Mespack Cloud, Llc Maszyna do cięcia torebek z ukształtowaną krawędzią obwodową, sposób i torebka
USD856801S1 (en) * 2017-03-06 2019-08-20 Francisco RUIZ BERNAL Foil for packaging
CN114055558B (zh) * 2021-11-10 2023-06-09 湖南欣龙非织造材料有限公司 一种打孔无纺布的生产装置及方法

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ES380084A3 (es) * 1970-05-06 1972-09-16 Mateu Sebastia Maquina troqueladora de accion multiple.
EP0115804A1 (de) * 1983-02-04 1984-08-15 Unilever N.V. Verfahren zum Herstellen einer Weichkunststoffolie
JPH03119927A (ja) * 1989-09-30 1991-05-22 Yoshitaka Miura 匍匐茎芝植生シート及びその施工方法

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WO2016174307A1 (en) 2015-04-28 2016-11-03 Spinnova Oy Chemical method and system for the manufacture of fibrous yarn

Also Published As

Publication number Publication date
EP2803456A1 (en) 2014-11-19
EP2803456B1 (en) 2017-11-15
EP2803456A4 (en) 2016-03-23
ES2657390T3 (es) 2018-03-05
US20140224090A1 (en) 2014-08-14

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