EP2392513B2 - Installation et procédé pour l'emballage latéral de produits au moyen d'un film plastique - Google Patents

Installation et procédé pour l'emballage latéral de produits au moyen d'un film plastique Download PDF

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Publication number
EP2392513B2
EP2392513B2 EP11164515.6A EP11164515A EP2392513B2 EP 2392513 B2 EP2392513 B2 EP 2392513B2 EP 11164515 A EP11164515 A EP 11164515A EP 2392513 B2 EP2392513 B2 EP 2392513B2
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EP
European Patent Office
Prior art keywords
film
station
product
wrapping
stations
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.)
Active
Application number
EP11164515.6A
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German (de)
English (en)
Other versions
EP2392513B1 (fr
EP2392513A1 (fr
Inventor
Massimiliano Ubertini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Messersi' Packaging Srl
Original Assignee
Messersi' Packaging Srl
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
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Application filed by Messersi' Packaging Srl filed Critical Messersi' Packaging Srl
Priority to PL11164515T priority Critical patent/PL2392513T5/pl
Publication of EP2392513A1 publication Critical patent/EP2392513A1/fr
Publication of EP2392513B1 publication Critical patent/EP2392513B1/fr
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Publication of EP2392513B2 publication Critical patent/EP2392513B2/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/026—Enclosing successive articles, or quantities of material between opposed webs the webs forming a curtain
    • 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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/001—Arrangements to enable adjustments related to the product to be packaged
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/003—Arrangements to enable adjustments related to the packaging material
    • 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
    • B65B65/003—Packaging lines, e.g. general layout
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/02—Plurality of alternative input or output lines or plurality of alternative packaging units on the same packaging line for improving machine flexibility
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/04—Customised on demand packaging by determining a specific characteristic, e.g. shape or height, of articles or material to be packaged and selecting, creating or adapting a packaging accordingly, e.g. making a carton starting from web material

Definitions

  • the present invention relates to a plant and a method for lateral wrapping of products by means of plastic film, advantageously of the heat-shrinkable type.
  • a wrapping station (sometimes referred to as "curtain” stations) in which a strip of film is stretched, in a vertical plane, transverse to the direction of movement of the product in the station.
  • the product thus comes into contact with the strip and draws it along until it is partially wrapped by it.
  • a pair of vertical blades are then operated in order to close the strip behind the product, weld its edges and cut it.
  • the strip is then joined together again behind the wrapped product, so that it is ready to wrap the next product.
  • the wrapped product is conveyed to a heat-shrinking station in order to complete the packing process.
  • the height of the strip is related to the height of the product to be packaged (usually the strip must be folded over by a small, but not excessive amount onto the top and bottom faces of the product), in the case where it is required to package products of different height, separate packaging lines are required, i.e. one for each height, with not insignificant costs and dimensions.
  • separate packaging lines are required, i.e. one for each height, with not insignificant costs and dimensions.
  • EP 0,183,676 describes a plant formed by a single station having a plurality of wrapping units.
  • Each unit comprises two reels which are already joined together and spaced so as to form the strip of transverse film.
  • the units are movable so that they may be inserted, from the top or from one side, transversely with respect to the product conveying line so as to replace each other inside the station at the location of cutting and welding systems which form the package in the station.
  • the system is, however, complex and not flexible, not allowing the easy addition of other types of film.
  • the general object of the present invention is to provide a plant which allows the simultaneous management of different types of film rapidly and efficiently, for example in order to wrap products which have a different height or which in any case require one of such different types of film.
  • the idea according to the present invention is to provide a plant as claimed in Claim 1.
  • the idea is that of providing a method for the lateral wrapping, using plastic film, of products which travel along a conveying line, comprising the steps of arranging along the line a series of lateral-wrapping stations, each designed to wrap products with a predetermined film stretched transversely with respect to the conveying line, and causing the products to pass through all the stations, raising above a passing product the film in the stations which are not equipped with the film required for that product and lowering the film in front of the product in a station equipped for wrapping that product with the desired film.
  • the idea is that of providing a station (not claimed) for lateral wrapping of products by means of plastic film, able to be passed through by a line for conveying the products in sequence and comprising a wrapping system formed by two vertical-axis rolls of film which are arranged on opposite sides so as to dispense transversely with respect to the line a strip of film stretched between the rolls, the station also comprising vertical welding blades which are located opposite each other on the two sides of the line, said blades being movable towards each other for welding and cutting the strip of film around a product made to pass through the station and against the transverse strip, characterized in that the rolls are supported in the station so as to be movable vertically in a controllable manner for displacement between a lowered operative position for wrapping a product passing through the station and a raised non-operative position for allowing a product to pass through the station without coming into contact with the transverse strip.
  • Figure 1 shows a plant, denoted generally by 10, for wrapping products by means of plastic film.
  • the plant 10 comprises a line 11 for conveying in sequence products 12 to be wrapped with film.
  • the products may be formed by packs of material arranged on a pallet so as to form a parallelepiped.
  • the packs may consists of bricks, paper-mill products, etc.
  • the conveying line is essentially of the known type and therefore will not be described or shown here in detail. It generally comprises a support surface on which the products are placed in order to be conveyed through the plant between a loading zone and an unloading zone.
  • the line may advantageously be formed, for example, by means of a belt or chain conveyor.
  • the conveying line 10 passes in sequence through vertical-wrapping stations 13 which are arranged along the line. As will be described in greater detail blow, each station has a "curtain" type system for performing lateral wrapping of a product 12 which passes through the station.
  • the wrapping system 14 has a strip of film 25 which is arranged transverse to the line so as to wrap a product which passes through the station.
  • the wrapping systems 14 are motor-driven so as to be movable vertically in a controllable manner for displacement between a lowered operative position (such as that shown for the first left-hand station in Figure 1 ) for wrapping a passing product in the station and a raised non-operative position (such as that shown for the other stations in Figure 1 ) for allowing a product to pass through the station without coming into contact with the strip of film.
  • an overhead conveyor 15 (for example with a travel path 16 along which a shuttle 17 moves) is provided above the stations for conveying rolls of replacement film 19 to the stations.
  • the conveyor moves advantageously above and along the product conveying line, making use of the space above the stations.
  • the plant may be used with the overhead conveyor also in the case of a room with a low height, unlike other known solutions.
  • the plant 10 comprises means 19 for controlling the plant which control operation of the plant and in particular the vertical displacement of the wrapping system of each station so as to select the station which must wrap the film around a product passing on the line.
  • the control means 19 (for example a known electronic system with a suitably programmed microcontroller) is able to receive selection commands from an operator or from a system for electronic detection of the arriving product.
  • a sensor 20 may be provided ahead of the series of stations 13 in order to detect the height of the arriving product, said sensor sending this height information to the control means 19 which are thus able to decide which station contains the most suitable film for wrapping the particular product and consequently lower only the film of this station, allowing the product to pass freely through the other stations.
  • Figure 1 shows the plant upon arrival of a product with a height suitable for processing by the first station
  • Figure 2 shows the plant upon arrival of a product with a height suitable for processing by the third station along the line.
  • the film used by the plant is of the heat-shrinkable type.
  • the conveying line 11 after the wrapping stations, reaches or passes through a known heat-shrinking station 21.
  • each station comprises two rolls of film 22 which are supported on their vertical axis and arranged on opposite sides of the conveying line.
  • the portions of film which are unwound from the two rolls of the station are joined together to form the strip of film which is stretched transversely with respect to the conveying line.
  • Vertical welding blades 23 are arranged opposite each other on the two sides of the line and are movable towards each other for cutting and welding the strip of film around the product which passes through the station. During their movement towards each other the blades weld the film onto the rear part of the product (thus closing it around the product), cut the wound film and join together again the two portions in order to form again the transverse strip for wrapping the next product.
  • Figures 3 to 6 show in greater detail an advantageous structure of a station 13 according to the invention and designed to be passed through by the line 11 for conveying the products in sequence.
  • the station for forming the wrapping system 14 comprises two rolls of film 22 which are rotatably supported by their vertical axis 24 and arranged on opposite sides of the conveying lines so as to dispense transversely with respect to the line the strip of film 25 stretched between the rolls.
  • Each roll is supported by a motor-driven carriage 26 which travels vertically along lateral uprights 25 which form part of the fixed structure of the station.
  • the two carriages are driven by a same electric motor 28 via a suitable known mechanism so as to move in synchronism during their travel upwards and downwards between the said operative and non-operative positions.
  • the carriages are arranged close to the base of the rolls in order to support the respective roll in a projecting manner, for example by means of a bottom bracket 29 and a top bracket 30, if present, which may be provided in order to stabilize the axis 24 of rotation of the roll.
  • the carriages may thus raise the rolls with their top end above the top end of the lateral uprights. This allows the height of the stations to be reduced when the rolls are in the lowered position, while allowing good elevation of the rolls above the passing products. This is particularly advantageous for allowing the passage of the overhead conveyor of the roll replacement system.
  • the overhead conveyor if arranged in the centre of the product conveying line, may thus pass between the empty rolls even when the carriages are in their completely raised position.
  • the top arm for supporting the axis of the roll may project from a support 31 which may be released in relation to the carriage so that it can be adjusted heightwise, in order to allow rapid adaptation of the station to a change in height of the film (i.e. the width of the film in a direction transverse to the strip which is unrolled) being processed by it.
  • a support 31 which may be released in relation to the carriage so that it can be adjusted heightwise, in order to allow rapid adaptation of the station to a change in height of the film (i.e. the width of the film in a direction transverse to the strip which is unrolled) being processed by it.
  • known mechanisms 32 for guiding and tensioning the film may also be provided, coupled to each carriage.
  • the station also comprises vertical blades 23 located opposite each other on both sides of the line.
  • These blades which are advantageously arranged on the opposite side of the uprights with respect to the carriages for raising the film, comprise a known controlled-heating electric circuit for welding the portions of film which are brought into contact when the blades are closed towards each other, as shown schematically in broken lines in Figure 4 , after the product has passed through.
  • the structure of the station comprises a cross beam 33 between the uprights, along which the cutting and welding blades 23 travel in a controllable manner (by means of a motor 34 with a suitable known drive system) so as to move between the spaced apart non-operative position (shown in solid lines in Figure 5 ) for allowing the passage of a product and the operative position close to each other (shown in broken lines in Figure 5 ) for welding the film folded around the product and held between the blades.
  • a series of lateral wrapping stations are arranged along a conveying line, each being designed to wrap the products with a predetermined film stretched transversely with respect to the conveying line. Then the products are made to pass through all the stations, raising above a passing product the film in the stations which are not equipped with the desired film for that product and lowering the film in front of the product in a station equipped to wrap that product with the desired film.
  • rapid and efficient processing of products which require different films may be easily achieved, using a minimum amount of space and with a minimum complexity of the plant.
  • Stations may be easily used along lines which require a rapid throughput of products without interference. Moreover, the stations may be easily adapted to operate in sequence along conveying lines of different types, size and length, while still having a relatively low space requirement.
  • a method as described above for the lateral wrapping of products with plastic film results in a high degree of flexibility and the possibility of using simultaneously also a large number of different films.
  • the stations are advantageously each equipped with a film for wrapping a different product height or height range and the film in the stations is therefore lowered or raised depending on whether or not the product arriving at the station has a height for which the station is equipped.
  • the film may be varied among the stations, depending on the specific packaging requirements. For example, it is possible to envisage films with different colours or different physical or chemical properties. With the plant according to the invention it is in any case possible to select rapidly the desired film for each specific type of product in arrival. Selection may be manual or performed by means of suitable automatic or semi-automatic devices, also depending on specific and predetermined characteristics which are detected in the arriving product.
  • the number of stations which can be used may obviously be of any number and different from that shown by way of example in the drawings. There is no limit to the number of stations which can be used in sequence along the conveying line. Moreover, although a substantially straight conveying line is preferable, other configurations may be envisaged, also in order to make use of spaces with a particular form and reduce the dimensions of the plant in certain directions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (8)

  1. Installation pour l'emballage latéral de produits au moyen d'un film plastique, comprenant une ligne pour le transport des produits en séquence et l'emballage avec différentes bandes de film, comprenant une pluralité de stations d'emballage vertical agencées en séquence le long de la ligne, chaque station comprenant un système d'emballage (14) avec une bande de film (25) agencée de manière transversale par rapport à la ligne afin d'emballer un produit qui passe par la station et des lames de soudage verticales (23) qui sont agencées à l'opposé l'une de l'autre sur les deux côtés de la ligne et qui sont mobiles l'une vers l'autre pour couper et souder la bande de film autour d'un produit qui passe par la station et contre la bande transversale, les systèmes d'emballage (14) étant verticalement mobiles d'une manière contrôlable pour le déplacement entre une position opérationnelle abaissée pour emballer un produit passant par la station et une position non opérationnelle levée pour permettre à un produit de passer par la station sans venir en contact avec la bande transversale, des moyens de commande (19) de l'installation réalisant le déplacement vertical des systèmes d'emballage (14) entre la position opérationnelle abaissée et le système non opérationnel levé afin de sélectionner la station qui doit enrouler le film autour d'un produit passant le long de la ligne, le système d'emballage (14) comprenant deux rouleaux de film (22) qui sont supportés par leur axe vertical et agencés sur les côtés opposés de la ligne de transport et ont des parties de film qui sont déroulées à partir de ces derniers et qui sont assemblées pour former une bande de film (25) étirée de manière transversale par rapport à la ligne de transport, caractérisée par la station qui comprend une structure avec des montants (27) qui sont latéraux par rapport à la ligne de transport, les rouleaux (22) étant supportés au moyen de chariots motorisés (26) qui se déplacent verticalement le long des montants latéraux afin de déplacer les rouleaux entre ladite position opérationnelle et la position non opérationnelle, et les chariots (26) sont agencés à proximité de la base des rouleaux afin de pouvoir lever les rouleaux avec leur extrémité supérieure au-dessus des montants latéraux.
  2. Installation selon la revendication 1, caractérisée en ce que la structure comprend une poutre transversale (33) entre les montants (27), le long desquels les lames de coupe et de soudage (23) se déplacent d'une manière contrôlable afin de se déplacer entre une position non opérationnelle espacée pour permettre le passage d'un produit et une position opérationnelle proche pour souder le film maintenu entre les lames.
  3. Installation selon la revendication 1, caractérisée en ce que chaque station est équipée avec un film de différente hauteur de sorte que chaque station est appropriée pour emballer des produits avec une hauteur ou plage de hauteur proportionnellement différente.
  4. Installation selon la revendication 1, caractérisée en ce que le film est thermorétractable et la ligne de transport, après la station d'emballage, atteint ou passe par une station de rétraction thermique (21).
  5. Installation selon la revendication 1, caractérisée en ce qu'un capteur (20) est présent le long de la ligne de transport, devant la première station de la pluralité de stations, ledit capteur détectant la hauteur d'un produit arrivant le long de la ligne et étant raccordé aux moyens de commande afin de réaliser la sélection de la station parmi la pluralité de stations en fonction de ladite hauteur détectée.
  6. Installation selon la revendication 1, caractérisée en ce qu'un transporteur en hauteur (15) pour transporter des rouleaux de remplacement jusqu'aux stations, est agencé au-dessus des stations.
  7. Procédé pour l'emballage latéral, à l'aide de film plastique, de produits au moyen d'uns installation selon la revendication 1, qui se déplacent le long d'une ligne de transport, comprenant les étapes consistant à agencer, le long de la ligne, une série de stations pour l'emballage latéral et le soudage du film, chacune conçue pour emballer des produits avec une bande prédéterminée de film étirée transversalement par rapport à la ligne de transport et pour couper et souder la bande de film autour d'un produit qui passe par la station et contre la bande, et amener les produits à passer par toutes les stations, lever, au-dessus d'un produit qui passe, le film dans les stations qui ne sont pas équipées avec le film requis pour ce produit et abaisser le film en face du produit dans une station équipée pour emballer ce produit avec le film souhaité.
  8. Procédé selon la revendication 7, dans lequel les stations sont chacune équipées avec un film pour emballer un produit avec une hauteur ou plage de hauteur différente et le film, dans les stations, est abaissé ou levé selon si le produit qui arrive dans la station a une hauteur pour laquelle la station est équipée ou pas.
EP11164515.6A 2010-05-25 2011-05-03 Installation et procédé pour l'emballage latéral de produits au moyen d'un film plastique Active EP2392513B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11164515T PL2392513T5 (pl) 2010-05-25 2011-05-03 Instalacja oraz sposób do zawijania bocznego wyrobów za pomocą folii z tworzywa sztucznego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2010A000937A IT1400259B1 (it) 2010-05-25 2010-05-25 Impianto, metodo e stazione per l'avvolgimento laterale di prodotti mediante film plastico.

Publications (3)

Publication Number Publication Date
EP2392513A1 EP2392513A1 (fr) 2011-12-07
EP2392513B1 EP2392513B1 (fr) 2015-08-19
EP2392513B2 true EP2392513B2 (fr) 2021-01-13

Family

ID=43740709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11164515.6A Active EP2392513B2 (fr) 2010-05-25 2011-05-03 Installation et procédé pour l'emballage latéral de produits au moyen d'un film plastique

Country Status (4)

Country Link
EP (1) EP2392513B2 (fr)
ES (1) ES2552834T5 (fr)
IT (1) IT1400259B1 (fr)
PL (1) PL2392513T5 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201118710D0 (en) * 2011-10-28 2011-12-14 Meadwestvaco Packaging Systems Packaging system,machine and transfer apparatus
ITBO20110718A1 (it) * 2011-12-15 2013-06-16 So Te Ma Pack S R L Apparecchiatura per realizzare una rispettiva confezione.
EP2791014A2 (fr) * 2011-12-15 2014-10-22 So.Te.Ma. Pack S.r.l. Appareil permettant de confectionner un paquet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387758B (de) * 1984-11-30 1989-03-10 Reker Adolf Maschf Vorrichtung zum verpacken eines insbesondere von einer palette gehalterten gutstapels mittels einerschrumpffolie
FR2606366B1 (fr) * 1986-11-12 1989-07-13 Newtec Int Procede et machine d'emballage pass-through
FR2869293B1 (fr) * 2004-04-23 2006-06-09 Thimon Sa Machine d'emballage a rideau d'une charge portee par un convoyeur
US20060096244A1 (en) * 2004-11-09 2006-05-11 Aetna Group S.P.A. Machine for banding groups of palletized products

Also Published As

Publication number Publication date
EP2392513B1 (fr) 2015-08-19
ES2552834T3 (es) 2015-12-02
IT1400259B1 (it) 2013-05-24
PL2392513T5 (pl) 2021-09-20
PL2392513T3 (pl) 2016-01-29
ES2552834T5 (es) 2021-10-21
EP2392513A1 (fr) 2011-12-07
ITMI20100937A1 (it) 2011-11-26

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