EP2203350B1 - Ensemble de conditionnement - Google Patents

Ensemble de conditionnement Download PDF

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Publication number
EP2203350B1
EP2203350B1 EP08804412A EP08804412A EP2203350B1 EP 2203350 B1 EP2203350 B1 EP 2203350B1 EP 08804412 A EP08804412 A EP 08804412A EP 08804412 A EP08804412 A EP 08804412A EP 2203350 B1 EP2203350 B1 EP 2203350B1
Authority
EP
European Patent Office
Prior art keywords
heat
sealing
film
packaging assembly
elements
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
EP08804412A
Other languages
German (de)
English (en)
Other versions
EP2203350A2 (fr
Inventor
Francesco Maria Bernardi
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.)
Tissue Machinery Co SpA
Original Assignee
Tissue Machinery Co SpA
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 Tissue Machinery Co SpA filed Critical Tissue Machinery Co SpA
Publication of EP2203350A2 publication Critical patent/EP2203350A2/fr
Application granted granted Critical
Publication of EP2203350B1 publication Critical patent/EP2203350B1/fr
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Anticipated expiration legal-status Critical

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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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously

Definitions

  • the present invention relates to a packaging assembly.
  • a first task that these machines must perform is to package a predefined number of rolls, in order to provide the packaging unit, which typically the end consumer finds on shop shelves.
  • the need is known to proceed to a further wrapping of a preset number of packs, by means of a suitable film, in order to obtain a bag that can be handled and transported more easily, for example by means of pallets; in some cases, the resulting bag can also be sold directly, for example in discount stores, where the end consumer can purchase goods in the quantities that are handled usually only by wholesale dealers.
  • Such tie-shaped tools are substantially suitably shaped metal plates, which are capable of folding the film unwound from a feeder in order to form a substantially tubular shape.
  • the resulting tube is open at one end in order to receive the packs to be wrapped and is closed at the other end.
  • the assembly is further provided with a pusher or with other movement systems, capable of handling the packs and of accompanying them within the tube thus formed, making them enter from the open side and pushing them until they are proximate to its other closed end, beyond the tie-shaped tools.
  • a heat-sealing assembly acts which is constituted by a pair of heat-sealing devices, which can perform a translational motion along a direction that is substantially transverse with respect to the advancement direction of the pack being processed.
  • the two devices become active once the pack has passed beyond them, in order to close behind such pack the two folded and open flaps of the film by means of the devices, which by performing a translational motion move mutually closer until they touch each other, subsequently remaining for a few seconds in position on the flaps in order to provide their heat-sealing, and finally return to the initial position, waiting for the subsequent pack.
  • the pack in order to allow the heat-sealing of the flaps, the pack must in practice "stop" along the line for the time needed for the two devices to complete their heat-sealing cycle, therefore also excluding for the main advancement line of the pack an advantageous continuous operation.
  • This type of heat-sealing potentially allows to have continuous operation for the bag advancement line, such bags being followed along a portion of their stroke by the heat-sealing devices, which move along the substantially straight portion of the annular path to which they are constrained; the result is a packaging assembly that can ensure processes with higher productivity than the type described previously.
  • US 5 689 942 discloses a tube-film packaging machine having a heat sealing station comprising a frame that is slidably driven to repeat reciprocation on horizontal guide rails by means of a connecting rod/crank arm assembly driven by a motor.
  • the reciprocating sliding frame carries upper and lower sealers, through which a film tube to be sealed is feed, that are reciprocatingly slidably driven mutually dependently together on vertical guides by means of another motor and crank/link system also carried by the frame.
  • US 5 271 210 discloses a film wrapping packaging machine comprising a vertically reciprocating sealing bar mechanism with upper and lower sealing bars actuated mutually dependently together by a rotating linkage having two rods connected to two ends thereof, each rod being also connected to a respective sealing bar.
  • the reciprocating sealing bar mechanism is carried by a frame that reciprocatingly moves in a horizontal direction.
  • the aim of the present invention is to solve the above-mentioned drawbacks, by providing a packaging assembly that is capable of heat-sealing a film around a preset number of packs of product prepared adequately, which offers a wide range of trajectories that can be followed by the heat-sealing devices.
  • an object of the invention is to provide a packaging assembly in which the trajectories of the heat-sealing devices can be configured at will during design or during format changing.
  • Another object of the invention is to provide a packaging assembly that has a satisfactory structural simplicity and low costs.
  • Another object of the invention is to provide a packaging assembly that ensures high reliability in operation.
  • Another object of the invention is to provide a packaging assembly that can be obtained easily starting from commonly commercially available elements and materials.
  • Another object of the invention is to provide a packaging assembly that is relatively simple to provide in practice and safe in application.
  • a packaging assembly generally designated by the reference numeral 1, comprises movement means 2, which are arranged along a predefined path 3 for an element to be packaged 4, by means of a film 5 made of polymeric material, that arrives from a feeder 6.
  • the element 4 to be packaged can be constituted for example by a preset number of packs of products, which must be wrapped by the film 5 in order to make transport easier.
  • the packaging assembly 1 further comprises a folding station 7, for folding the film 5 onto the element 4, downstream of which there is, for the folded flaps of the film 5, a heat-sealing unit 8, which comprises at least one pair of heat-sealing elements 9, which are arranged on opposite sides with respect to the predefined path 3 and are functionally associated with respective actuation and control assemblies 10; the heat-sealing elements 9 act, during heat-sealing, each along at least two mutually independent directions, and the heat-sealing on the elements to be packaged 4 can be performed even during motion.
  • each actuation and control assembly 10 comprises at least one pair of traction apparatuses 11, constituted for example by motorized belts: one of the apparatuses 11 acts along a substantially transverse direction with respect to the predefined path 3, while the other one acts along a direction that is substantially parallel thereto.
  • the two heat-sealing elements 9 can perform a translational motion along the direction that is perpendicular to the advancement direction of the element 4, in order to come into contact with each other and provide the closure and heat-sealing of the previously folded flaps of the film 5, and can simultaneously perform a translational motion, parallel to the product advancement direction, to "follow" the trajectory traced by the flaps of the film 5 without interfering with the advancement motion of the element 4 being processed.
  • the system allows to provide any motion for the heat-sealing elements 9 and therefore to impart any advancement motion to the element 4 in input, thus adapting to different formats, while the annular path described in packaging assemblies of the background art is a function of the structural elements that compose the system and therefore cannot be modified or changed in its configuration, except on penalty of substantial transformations of the machine as a whole.
  • the packaging assembly 1 comprises a control and management unit, which is provided with respective memory components and is associated with the actuation and control assemblies 10, and by means of which it is possible to program suitable operating sequences of the traction apparatuses 11 on such memory components, in order to determine, as mentioned, the desired spatial trajectory of the heat-sealing elements 9.
  • the folding station 7 comprises a plurality of laminar elements, known as tie-shaped tools, which are arranged along the path of the film 5 and whose surfaces are mutually coupled according to a spatial configuration that allows to fold the film 5 until it assumes a substantially tubular shape.
  • laminar elements known as tie-shaped tools
  • the movement means 2 of the element 4 comprise an assembly 12 for the transport of the film 5, which is arranged substantially downstream of the folding station 7, and has at least one surface portion that can move along a direction that is substantially parallel to the predefined path 3 in order to transport by friction the element 4 wrapped by the film 5, which is interposed between the movable surface portion and a suitable abutment.
  • the transport assembly 12 comprises at least one first conveyor belt 13a and at least one second conveyor belt 13b.
  • the element 4, wrapped by the film 5, is interposed between the two belts 13a, 13b and is transported by them: the first conveyor belt 13a in fact constitutes the movable surface portion, while the second conveyor belt 13b constitutes the appropriately provided reference.
  • both the first conveyor belt 13a and the second conveyor belt 13b comprise respective guiding pulleys, and a first pulley 14a (and respectively 14b) that faces and lies proximate to the corresponding heat-sealing element 9 is coupled slidingly to the heat-sealing element 9 along a direction that is substantially transverse with respect to the predefined path 3.
  • the Figure 11 is a functional diagram which is related to what has just been described and in which, in addition to the first pulleys 14a, 14b that can perform a translational motion, a possible constructive solution is shown and mentioned merely by way of non-limiting example for second pulleys 15a, 15b, which is arranged opposite the first pulleys 14a, 14b and is jointly connected thereto by means of a rigid connection 16a, 16b.
  • the translational motion of the heat-sealing element 9 along the advancement direction of the element to be packaged 4 entails a consequent movement of the first pulleys 14a, 14b and of the second pulleys 15a, 15b to increase the useful surface 17a, 17b of the corresponding conveyor belt 13a, 13b.
  • This increase in the useful surface 17a, 17b is matched by a reduction of the length of the portions 18a, 18b of the belt 13a, 13b that lead to the second pulleys 15a, 15b; this reduction is possible by way of the movement caused by the rigid connection 16a, 16b between the first pulleys 14a, 14b and the second pulleys 15a, 15b, such movement occurring along a direction that is parallel to the useful surface 17a, 17b and to the portions 18a, 18b.
  • the transport assembly 12 must be supplied with adequately prepared elements 4 and then move them with the method described above.
  • This supply of elements 4 can be performed by a pusher that is capable of moving them to the folding station 7, upstream of the inlet of the transport assembly 12.
  • the elements 4 are fed to the inlet of the transport assembly 12 by way of other movement units, for example additional conveyance lines arranged laterally. Further, in the transport assembly 12, the elements 4 can be wrapped by the film 5 and transported by the first conveyor belt 13a and by the second conveyor belt 13b.
  • the transport assembly 12 conveniently allows to reduce the stroke of the pusher with respect to the stroke that was provided for it in the machines of the background art, where in practice it had to push the element 4 along the entire length of the tube of film 5 formed earlier.
  • the transport assembly 12 in fact provides, at least for a portion of the overall stroke, the movement by traction of the element 4 along the predefined path 3 jointly with the film 5, simultaneously providing the desired wrapping.
  • the method for packaging elements to be packaged 4 associated with a packaging assembly 1 comprises a first step for feeding the movement means 2, which are arranged along the predefined path 3, with at least one element to be packaged 4, a second step for folding the film 5 on the element to be packaged 4, along a substantially folded shape, in the folding station 7, and a third step for heat-sealing the folded flaps of the film 5 by means of the heat-sealing unit 8.
  • the third heat-sealing step consists in performing the translational motion, along two mutually independent directions, of a pair of heat-sealing elements 9.
  • the third heat-sealing step consists in performing the translational motion of the pair of heat-sealing elements 9 along a first direction that is substantially transverse to the predefined path 3 to heat-seal the folded flaps of the film 5 and along a second direction that is substantially parallel to the predefined path 3 in order to follow the advancement motion of the element 4 during heat-sealing.
  • the packaging assembly according to the invention fully achieves the proposed aim, since resorting to heat-sealing elements 9, which are actuated by traction apparatuses 11 that act independently of each other along two different directions, allows to provide any spatial trajectory for the heat-sealing elements 9, thus allowing an effective closure of the wrapping of film 5 on the element 4, whatever the size of the element 4.
  • the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.

Claims (6)

  1. Ensemble de conditionnement (1) comprenant des moyens de déplacement (2) ménagés le long d'un trajet prédéfini (3) pour un élément (4) qui doit être emballé au moyen d'un film (5) fait de matière polymère qui arrive d'un dispositif d'alimentation (6) ledit ensemble de conditionnement (1) comprenant une station (7) pour plier le film (5) sur l'élément (4), en aval de laquelle se trouve une unité (8) pour souder à chaud les rabats pliés du film (5), ladite unité de soudage à chaud (8) comprenant au moins une paire d'éléments de soudage à chaud (9) qui sont ménagés sur des côtés opposés par rapport audit trajet prédéfini (3), lesdits éléments de soudage à chaud (9) étant appropriés pour agir, pendant l'étape de soudage à chaud, chacun dans au moins deux directions mutuellement indépendantes, en effectuant le soudage à chaud sur les éléments (4) qui doivent être emballés, pendant que lesdits éléments (4) qui doivent être emballés sont en mouvement avec lesdits éléments de soudage à chaud (9), caractérisé en ce que lesdits éléments de soudage à chaud (9) sont associés fonctionnellement à des ensembles d'activation et de commande respectifs (10), chacun desdits ensembles d'activation et de commande (10) comprenant au moins une paire d'appareils de traction (11), l'un desdits appareils de traction (11) étant agencé pour agir le long d'une première direction qui est sensiblement transversale par rapport audit trajet prédéfini (3), l'autre desdits appareils de traction (11) étant agencé pour agir le long d'une seconde direction qui est sensiblement parallèle audit trajet prédéfini (3), un premier desdits éléments de soudage à chaud étant agencé pour être activé dans la première direction sensiblement transversale par rapport audit trajet prédéfini par son propre premier appareil de traction, et un second desdits éléments de soudage à chaud étant agencé pour être activé dans ladite première direction sensiblement transversale par rapport audit trajet prédéfini par son propre second appareil de traction qui est structurellement indépendant dudit premier appareil de traction.
  2. Ensemble de conditionnement selon la revendication 1, caractérisé en ce qu'il comprend une unité de commande et de gestion, qui est pourvue d'éléments de mémoire respectifs et qui est associée avec lesdits ensembles d'activation et de commande (10), des séquences de fonctionnement appropriées desdits appareils de traction (11) étant programmables sur lesdits éléments de mémoire et pouvant être transférées auxdits appareils (11) au moyen de ladite unité de commande et de gestion, en déterminant la trajectoire spatiale desdits éléments de soudage à chaud (9).
  3. Ensemble de conditionnement selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ladite station de pliage (7) comprend une pluralité d'éléments laminaires qui sont agencés le long du trajet dudit film (5), le couplage mutuel des surfaces desdits éléments laminaires définissant une configuration spatiale qui est adaptée pour plier ledit film (5) le long d'une forme sensiblement tubulaire.
  4. Ensemble de conditionnement selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que lesdits moyens (2) pour déplacer l'élément (4) comprennent un ensemble (12) pour transporter le film (5), qui est agencé sensiblement en aval de ladite station de pliage (7), ledit ensemble de déplacement (12) ayant au moins une partie de surface (18a, 18b) qui peut se déplacer sensiblement parallèlement audit trajet prédéterminé (3) pour soumettre à une traction par frottement ledit élément (4) enveloppé dans ledit film (5), ledit élément (4) enveloppé dans le film (5) étant interposé entre ladite partie de surface et une butée appropriée.
  5. Ensemble de conditionnement selon la revendication 4, caractérisé en ce que ledit ensemble de transport (12) comprend une première courroie transporteuse (13a) et une seconde courroie transporteuse (13b), ladite partie de surface mobile étant constituée par ladite première courroie transporteuse (13a) et ladite butée appropriée étant constituée par ladite seconde courroie transporteuse (13b).
  6. Ensemble de conditionnement selon la revendication 5, caractérisé en ce que ladite première courroie transporteuse (13a) et ladite seconde courroie transporteuse (13b) comportent des poulies de guidage respectives, et une première poulie (14a, 14b), qui fait face et est proche dudit élément de soudage à chaud (9) et y est couplée de façon coulissante, pouvant coulisser par rapport à lui dans une direction qui est sensiblement transversale audit trajet prédéfini (3).
EP08804412A 2007-09-25 2008-09-18 Ensemble de conditionnement Active EP2203350B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000650A ITBO20070650A1 (it) 2007-09-25 2007-09-25 Gruppo di confezionamento
PCT/EP2008/062477 WO2009040297A2 (fr) 2007-09-25 2008-09-18 Ensemble de conditionnement

Publications (2)

Publication Number Publication Date
EP2203350A2 EP2203350A2 (fr) 2010-07-07
EP2203350B1 true EP2203350B1 (fr) 2012-04-18

Family

ID=40316232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08804412A Active EP2203350B1 (fr) 2007-09-25 2008-09-18 Ensemble de conditionnement

Country Status (6)

Country Link
US (1) US20100199615A1 (fr)
EP (1) EP2203350B1 (fr)
CN (1) CN101808903A (fr)
AT (1) ATE554006T1 (fr)
IT (1) ITBO20070650A1 (fr)
WO (1) WO2009040297A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103692592A (zh) * 2013-12-17 2014-04-02 苏州艾兴无纺布制品有限公司 一种手术托盘套袋及其制备方法
CN104309836A (zh) * 2014-10-20 2015-01-28 合肥市春晖机械制造有限公司 一种下走纸全自动枕式包装机
CN105151365A (zh) * 2015-07-08 2015-12-16 中山简良包装有限公司 一种高效真空包装机
ITUA20164235A1 (it) * 2016-06-09 2017-12-09 Altopack Spa Macchina confezionatrice per pasta alimentare lunga o prodotti similari con formazione di singoli pacchetti di pasta o altro dotati di chiusura trasversale a soffietto.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2145941A (en) * 1938-04-18 1939-02-07 Stokes & Smith Co Method of and apparatus for making packages
DE2931527A1 (de) * 1978-09-29 1980-04-17 Sig Schweiz Industrieges Vorrichtung zum herstellen und fuellen von schlauchbeuteln
US4964259A (en) * 1989-08-02 1990-10-23 Borden, Inc. Form-fill-seal deflation method and apparatus
US5311726A (en) * 1992-06-17 1994-05-17 Rauscher Franc W Air extraction apparatus for continuous package making
GB2273483B (en) * 1992-12-15 1996-07-03 Ibaraki Seiki Mach Co Packaging apparatus
DE69308807D1 (de) * 1992-12-24 1997-04-17 Ibaraki Seiki Machinery Co Ltd Vorrichtung zum Verpacken von Gegenständen in entlüftetem Zustand
US5271210A (en) * 1993-03-12 1993-12-21 Ossid Corporation Packaging machine with reciprocating conveyor
GB2304669B (en) * 1995-08-25 1998-01-07 Ibaraki Seiki Mach Co Drive motor controlling apparatus for use in packaging machine
US5689942A (en) * 1996-06-25 1997-11-25 Ibaraki Seiki Machinery Company, Ltd. Drive motor controlling apparatus for use in packaging machine
ITMI20050119U1 (it) * 2005-04-08 2006-10-09 Ilapak Res & Dev Sa Macchina di confezionamento con camme simulate

Also Published As

Publication number Publication date
WO2009040297A3 (fr) 2009-06-18
WO2009040297A2 (fr) 2009-04-02
US20100199615A1 (en) 2010-08-12
EP2203350A2 (fr) 2010-07-07
CN101808903A (zh) 2010-08-18
ATE554006T1 (de) 2012-05-15
ITBO20070650A1 (it) 2009-03-26

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