EP2681119B1 - Machine for producing filter bags with products for infusion and with an outer wrapper envelope - Google Patents

Machine for producing filter bags with products for infusion and with an outer wrapper envelope Download PDF

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Publication number
EP2681119B1
EP2681119B1 EP12707924.2A EP12707924A EP2681119B1 EP 2681119 B1 EP2681119 B1 EP 2681119B1 EP 12707924 A EP12707924 A EP 12707924A EP 2681119 B1 EP2681119 B1 EP 2681119B1
Authority
EP
European Patent Office
Prior art keywords
outer wrapper
sealing
wrapper sheet
filter bag
carrousel
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
EP12707924.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2681119A1 (en
Inventor
Roberto Conti
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.)
IMA Industria Macchine Automatiche SpA
Original Assignee
IMA Industries 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
Application filed by IMA Industries SRL filed Critical IMA Industries SRL
Publication of EP2681119A1 publication Critical patent/EP2681119A1/en
Application granted granted Critical
Publication of EP2681119B1 publication Critical patent/EP2681119B1/en
Active legal-status Critical Current
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
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/04—Attaching, or forming and attaching, string handles or tags to tea bags
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/28—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a curved path, e.g. on rotary tables or turrets
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/48—Enclosing articles, or quantities of material, by folding a wrapper, e.g. a pocketed wrapper, and securing its opposed free margins to enclose contents
    • 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
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/028—Packaging of substances, e.g. tea, which are intended to be infused in the package packaging infusion material into filter bags
    • 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
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags

Definitions

  • This invention relates to a machine for packaging filter bags with products for infusion, such as tea, coffee, camomile, etc. with an outer wrapper envelope.
  • the overall machine comprises a plurality of stations, which are arranged one after another, in which the above-mentioned filter bags are produced.
  • Each filter bag contains a metered quantity of product enclosed in a corresponding lobe of the filter bag.
  • the filter bags may be single-lobed or double-lobed and, according to various prior art solutions, there may subsequently be associated with them a string connecting the filter bag to a pickup tag which is connected to the free end of the string.
  • this may involve operations to create knots, or heat-sealing, or joining with a heat-sealable stamp, or other prior art techniques.
  • the string and the pickup tag are suitably positioned on the filter bag formed in that way (for example, they are wrapped around the filter bag and associated with it or tucked into it), forming a product ready for the final packaging in suitable containers or boxes.
  • a further procedure present in such machines is the further individual packaging of filter bags using an outer wrapper sheet suitably folded around the filter bag and closed on it by means of heat-sealing.
  • the outer wrapper envelope is closed in two separate ways: on two longitudinal sides or edges of the outer wrapper sheet if the sheet has a folded opening edge; or on three sides of the outer wrapper sheet, consisting of two longitudinal edges and one transversal end edge, in the case of a simple outer wrapper, that is to say, without an opening edge.
  • the opening edge is present, it is in any case held in place by subsequent heat-sealing of the longitudinal edges.
  • predetermined groups of the filter bags with outer wrapper are packed in boxes.
  • the hopper-style guide and the pusher unit guide the filter bag and the piece of paper towards a pickup gripper which is part of a movement station comprising a carrousel with a plurality of radial pickup grippers.
  • the rotation of the carrousel causes the filter bag and the piece of paper to reach a series of positions corresponding to: a station equipped with a sealer for the free edges of the filter bag; a station equipped with grippers for folding the free edge of the outer wrapper towards the rest of the piece of outer wrapper paper (held there by the carrousel grippers) and, finally, a station equipped with grippers for gripping and picking up the packet towards an external unit for sealing the longitudinal edges of the outer wrapper.
  • the machine has a station for movement of the filter bags which comprises a plurality of grippers for gripping an individual filter bag, the grippers being arranged radially on a rotary carrousel.
  • the rotation of the carrousel causes the filter bags to arrive close to stations for application of the string and the tag to each other and, subsequently, to the filter bag.
  • a further rotation takes the filter bag close to a station for feeding a continuous web from which, by cutting, it is possible to obtain the sheet that will form the outer wrapper for the related filter bag.
  • the filter bag is translated by grippers, radially away from the rotary wheel, to allow feeding of the outer wrapper sheet between the grippers of the wheel and the filter bag itself, which is again moved towards the grippers to allow the sheet to be folded in a "U" over and around the filter bag.
  • the filter bag with the sheet folded in a "U" shape is transferred to a station equipped with a single sealer which seals the transversal end edge of the folded sheet.
  • a further rotation of the carrousel takes the partly closed packet into contact with a pair or rollers for pressing the edges and for moving the partly closed packet away from the carrousel.
  • the movement away takes the packet towards a drum equipped with holders for accommodating individual packets.
  • the rotation of the drum moves the packet positioned in the holder until it is facing a sealing plate which, effectively, concludes closing of the outer wrapper by sealing the two longitudinal edges.
  • a further rotation of the drum moves the closed packet produced in that way towards a station for stacking and final packaging in suitable containment boxes.
  • the definitive closing of the packet may be of lower quality.
  • the aim of this invention is to provide a machine for packaging filter bags with products for infusion with an outer wrapper envelope which overcomes the above-mentioned disadvantages of the prior art.
  • the aim of this invention is to provide a machine for packaging filter bags with products for infusion and with an outer wrapper envelope which can reduce the machine overall costs and dimensions.
  • a further aim of this invention is to provide a machine for packaging filter bags with an outer wrapper which can rapidly produce the final packet, keeping packet quality high.
  • the machine for packaging filter bags in related closed outer wrappers comprises sealing units operating on the sheet folded into a "U" shape to form an individual closed outer wrapper packet.
  • These sealing units are positioned along a circular operating path for the filter bags and the outer wrapper sheet formed by a carrousel, and downstream of a wrapping station.
  • the sealing units are designed to join at least two longitudinal end edges of the outer wrapper sheet which is positioned, together with the filter bag, on the carrousel.
  • This structure and layout of the sealing units therefore allows definitive closing of the packet while the filter bag and the outer wrapper sheet are still positioned on the carrousel.
  • the sealing units are designed to join the two longitudinal edges and the transversal end edge of the sheet with a "U"-shaped configuration of the outer wrapper sheet joining zones.
  • This sealing units structure also allows the obtainment of a simplified outer wrapper closing configuration, without changing the machine architecture.
  • the sealing units are connected to a control unit programmed for selecting a first sealing configuration for sealing only the two longitudinal edges, or a second sealing configuration for sealing the three edges of the outer wrapper sheet in a "U" shape.
  • This feature makes the machine extremely flexible in sealing operations, being able to provide two different closing configurations, depending on the type of outer wrapper to be produced, always rapidly and safely and with the packet still on the movement carrousel.
  • the machine 5 is designed to produce filter bags 1 containing products for infusion (such as tea, coffee, camomile, etc.) and to individually package them in closed outer wrapper 2 sheets.
  • products for infusion such as tea, coffee, camomile, etc.
  • the filter bag 1 made by the machine 5 comprises (see Figure 1 for a non-limiting example) at least one lobe for containing a metered quantity of product and a string 3 for connecting the lobe to a pickup tag 4, the lobe and the tag being associated with respective ends of the string 3.
  • the filter bag 1 is made with a single lobe, or with two lobes, without thereby limiting the invention.
  • the machine 5 for packaging these filter bags 1 comprises a set of components for producing the filter bag 1 and the corresponding outer wrapper 2.
  • the machine 5 comprises a first reel 17 for feeding a web of filter paper along a path P1 (substantially horizontal) for intercepting a metering unit 18 for individual metered quantities of product which are deposited on the web.
  • Filter paper web feeding then brings it to intercept a folder 19 for forming a continuous tube of filter paper and a sealer 20 for forming a sequence of closed chambers containing individual metered quantities of product.
  • the machine 5 comprises gripper units 22 for feeding the individual filter bags 1 (single- or double-lobed) towards a carrousel 6 for packaging and moving the filter bags 1.
  • the carrousel 6 moves the filter bag 1, in steps, along a circular operating path C (indicated with an arrow in Figure 3 ).
  • the carrousel 6 comprises (see also Figures 4 and 5 ) a plurality of grippers 13 projecting radially from the carrousel 6 for retaining individual filter bags 1 which are fed by the gripper units 22.
  • the machine 5 also comprises a series of stations arranged one after another along the circular operating path C of the carrousel 6 for intercepting the filter bag 1 and completely packaging it:
  • the sheet 2 is fed, in the form of a continuous web, from a reel 7a.
  • sealing station 30 comprising sealing units 9 operating on the sheet 2 folded in a "U" shape, for forming an individual closed outer wrapper packet.
  • these sealing units 9 are positioned along the circular operating path C, downstream of the wrapping station 7, and are designed to join at least two longitudinal end edges 2a and 2b of the outer wrapper sheet 2 which is positioned, with the filter bag 1 inside it, on the carrousel 6.
  • the presence of the only sealing units 9 along the circular path C allows the obtainment of a definitive filter bag and outer wrapper sheet packet 2 while they are both still on the carrousel 6, without the need for further steps.
  • the sealing units 9 are separate from the carrousel 6.
  • the sealing units 9 are designed to join the two longitudinal edges 2a and 2b and the transversal end edge 2c with a "U"-shaped configuration of the outer wrapper sheet 2 joining zones.
  • the sealing units 9 are designed to join the two longitudinal edges 2a and 2b and the transversal end edge 2c of the outer wrapper sheet in the same step.
  • the sealing units 9 are connected to a control unit 10 programmed for selecting a first sealing configuration for sealing only the two longitudinal edges 2a, 2b ( Figure 1 ), or a second, "U"-shaped sealing configuration for the three edges 2a, 2b, 2c of the outer wrapper sheet ( Figure 2 ).
  • the control unit 10 is illustrated with a block in Figures 4 , 5 and 6 and may be integrated in a central control unit for the machine 5.
  • the sealing units 9 comprise a gripper with two arms 9a, 9b facing each other and articulated on at least one shared shaft 11, 12 for moving between an open, non-operating position ( Figure 4 ) and an operating sealing position, closed on the outer wrapper sheet 2 ( Figure 5 ).
  • each arm 9a, 9b has a "U"-shaped configuration defined by linear sealing edges B1, B2, B3 designed to intercept the corresponding edges 2a, 2b, 2c of the outer wrapper sheet 2.
  • a linear end transversal sealing edge B3 of each arm 9a, 9b is operatively independent with respect to the two remaining longitudinal sealing edges B1, B2 of the same arm 9a, 9b.
  • the edge B3 is activated or deactivated depending on the type of outer wrapper to be produced.
  • the three linear sealing edges B1, B2, B3 are fixed, in particular integral, with each other and are activated simultaneously for producing a filter bag 1 with a closed outer wrapper 2 having three sealed edges.
  • the wrapping station 7 is equipped with a folder element for further folding the opening edge 2d of the outer wrapper 2 (this component is of the known type and therefore is not described in detail).
  • the sheet 2 and the filter bag 1 are held on the folded base of the outer wrapper sheet 2 by the corresponding radial gripper 13 projecting from the carrousel 6.
  • sealing edges B1, B2, B3 are knurled stretches equipped with heating elements which can be activated by the control unit 10.
  • the two arms 9a, 9b are articulated or keyed about an axis X, on corresponding shafts 11 and 12 which are coaxial with each other.
  • a first shaft 11 contains the second shaft 12 and the two shafts can rotate independently of one another.
  • each arm 9a, 9b is connected to respective lever units 14 for moving the two arms 9a, 9b between the non-operating and operating positions, in such a way that they are synchronised with the stepping movement of the carrousel 6.
  • lever units 14 are controlled by cam profiles 14a, 14b (illustrated with a dashed line) for movement of the lever units 14 synchronised with the carrousel 6.
  • the machine 5 comprises a pickup device 17, advantageously of the gripper type, which extracts the filter bag 1 with the related closed outer wrapper 2 from the carrousel 2 to a stacking channel 16 through a pair of rollers 15a and 15b which are positioned downstream of the sealing units 9 relative to the direction of feed of the circular path C.
  • the packet obtained on the carrousel 6 is picked up by the gripper pickup device 17, passed through the rollers 15a and 15b with a radial movement away from the carrousel 6 and brought directly over the stacking channel 16 for a subsequent boxing step.
  • This invention also provides a method for sealing outer wrapper sheets 2 for filter bags 1 in the machine 5.
  • the method comprises at least the following steps:
  • the step of closing the sheet 2 is carried out by sealing units 9 which are positioned along the circular operating path C and is on at least two longitudinal edges 2a, 2b of the sheet 2 which is positioned on the carrousel 6.
  • the step of closing the sheet 2 comprises the sealing of three edges, that is to say, sealing the two longitudinal edges 2a, 2b and sealing the transversal end edge 2c of the sheet 2 with a "U"-shaped configuration of the outer wrapper sheet 2 joining zones.
  • This folding step is carried out along the operating path C and with the filter bag 1 and the sheet 2 both positioned on the carrousel 6.
  • the machine and the method described above fulfil the preset aims thanks to an extremely compact, functional and flexible structure of the system for sealing the outer wrappers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Making Paper Articles (AREA)
EP12707924.2A 2011-03-01 2012-02-10 Machine for producing filter bags with products for infusion and with an outer wrapper envelope Active EP2681119B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000094A ITBO20110094A1 (it) 2011-03-01 2011-03-01 Macchina per la produzione di sacchetti - filtro con prodotti da infusione e con busta di sovraincarto
PCT/IB2012/050601 WO2012117308A1 (en) 2011-03-01 2012-02-10 Machine for producing filter bags with products for infusion and with an outer wrapper envelope.

Publications (2)

Publication Number Publication Date
EP2681119A1 EP2681119A1 (en) 2014-01-08
EP2681119B1 true EP2681119B1 (en) 2014-12-10

Family

ID=43976822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12707924.2A Active EP2681119B1 (en) 2011-03-01 2012-02-10 Machine for producing filter bags with products for infusion and with an outer wrapper envelope

Country Status (6)

Country Link
EP (1) EP2681119B1 (zh)
CN (1) CN103402875B (zh)
BR (1) BR112013022399B1 (zh)
ES (1) ES2531394T3 (zh)
IT (1) ITBO20110094A1 (zh)
WO (1) WO2012117308A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3733384A1 (de) 2019-05-02 2020-11-04 Teepack Spezialmaschinen GmbH & Co. KG Vorrichtung und verfahren zum transportieren von fertig zugeschnittenen und befüllten schlauchstücken
EP4079647A1 (de) 2021-04-23 2022-10-26 Teepack Spezialmaschinen GmbH & Co. KG Vorrichtung und verfahren zum transportieren von fertig zugeschnittenen und befüllten schlauchstücken sowie entsprechende halterung
US11708184B2 (en) 2020-08-31 2023-07-25 Teepack Spezialmaschinen Gmbh & Co. Kg Device for manufacturing a pouch accommodated in a wrapping

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163353A1 (it) 2016-05-11 2017-11-11 I M A Industria Macch Automatiche S P A In Sigla Ima S P A Dispositivo e macchina per formare sacchetti filtro di forma tetraedrica
IT201600076483A1 (it) * 2016-07-21 2018-01-21 Ima Spa Macchina per formare sacchetti-filtro con prodotti da infusione.
IT201700123953A1 (it) * 2017-10-31 2019-05-01 Ima Spa Macchina per la formazione di sacchetti-filtro per prodotti da infusione.
IT201900017489A1 (it) 2019-09-30 2021-03-30 Ima Spa Macchina confezionatrice per la produzione di sacchetti-filtro con prodotti da infusione.
IT201900019812A1 (it) 2019-10-28 2021-04-28 Ima Spa Unita' per il sovra incarto di sacchetti - filtro per prodotti da infusione.
IT202000004321A1 (it) * 2020-03-02 2021-09-02 Ima Spa Macchina per la formazione di buste con prodotti da infusione o estrazione.
ES2964463T3 (es) 2020-05-12 2024-04-08 Teepack Spezialmaschinen Gmbh & Co Kg Dispositivo para la fabricación de una bolsa colocada en una envoltura
ES2927846T3 (es) * 2020-05-12 2022-11-11 Teepack Spezialmaschinen Gmbh & Co Kg Dispositivo para la fabricación de una bolsa alojada en una envoltura
IT202000019855A1 (it) * 2020-08-10 2022-02-10 Ima Spa Macchina per la formazione di buste con prodotti da infusione o estrazione.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1207631B (it) 1987-03-09 1989-05-25 Cestind Centro Studi Ind Apparecchiatura per il confezionamento in bustine di singoli sacchetti-filtro biuso nelle macchine confezionatrici in continuo didetti sacchetti-filtro
GB9314098D0 (en) * 1993-07-08 1993-08-18 Unilever Plc Apparatus and methods for producing packets
IT1320887B1 (it) * 2000-02-22 2003-12-10 Ima Spa Metodo per il confezionamento di sacchetti - filtro per prodotti dainfusione in relativi sovraincarti chiusi e relativa macchina attuante
ITBO20020638A1 (it) * 2002-10-09 2004-04-10 I M A Ind Macchine Automatich E S P A Macchina confezionatrice , e relativo metodo operativo ,
ITBO20060422A1 (it) * 2006-05-31 2007-12-01 Ima Spa Macchina automatica confezionatrice per la produzione di sacchetti filtro per prodotti da infusione
IT1392017B1 (it) * 2008-12-12 2012-02-09 Ima Flavour S R L Ora Ima Ind S R L Macchina per la realizzazione di sacchetti-filtro in bustine con prodotti da infusione

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3733384A1 (de) 2019-05-02 2020-11-04 Teepack Spezialmaschinen GmbH & Co. KG Vorrichtung und verfahren zum transportieren von fertig zugeschnittenen und befüllten schlauchstücken
US11299304B2 (en) * 2019-05-02 2022-04-12 Teepack Spezialmaschinen Gmbh & Co. Kg Device and method for transporting ready-cut and filled hose pieces
US11685561B2 (en) 2019-05-02 2023-06-27 Teepack Spezialmaschinen Gmbh & Co. Kg Device and method for making a pouch provided with a wrapping and containing a brewable material
US11708184B2 (en) 2020-08-31 2023-07-25 Teepack Spezialmaschinen Gmbh & Co. Kg Device for manufacturing a pouch accommodated in a wrapping
EP4079647A1 (de) 2021-04-23 2022-10-26 Teepack Spezialmaschinen GmbH & Co. KG Vorrichtung und verfahren zum transportieren von fertig zugeschnittenen und befüllten schlauchstücken sowie entsprechende halterung

Also Published As

Publication number Publication date
BR112013022399B1 (pt) 2020-07-21
ES2531394T3 (es) 2015-03-13
WO2012117308A1 (en) 2012-09-07
CN103402875A (zh) 2013-11-20
EP2681119A1 (en) 2014-01-08
ITBO20110094A1 (it) 2012-09-02
CN103402875B (zh) 2015-07-29
BR112013022399A2 (pt) 2017-05-30

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