EP0603704A1 - Procédé et dispositif pour la fabrication continue de récipients en feuille - Google Patents

Procédé et dispositif pour la fabrication continue de récipients en feuille Download PDF

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Publication number
EP0603704A1
EP0603704A1 EP93120082A EP93120082A EP0603704A1 EP 0603704 A1 EP0603704 A1 EP 0603704A1 EP 93120082 A EP93120082 A EP 93120082A EP 93120082 A EP93120082 A EP 93120082A EP 0603704 A1 EP0603704 A1 EP 0603704A1
Authority
EP
European Patent Office
Prior art keywords
pockets
film
station
filling
sealing
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.)
Granted
Application number
EP93120082A
Other languages
German (de)
English (en)
Other versions
EP0603704B1 (fr
Inventor
Josef Tschepke
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.)
Unionpack Industrielle Lohnverpackungs-GmbH
Original Assignee
Unionpack Industrielle Lohnverpackungs-GmbH
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 Unionpack Industrielle Lohnverpackungs-GmbH filed Critical Unionpack Industrielle Lohnverpackungs-GmbH
Publication of EP0603704A1 publication Critical patent/EP0603704A1/fr
Application granted granted Critical
Publication of EP0603704B1 publication Critical patent/EP0603704B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/08—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure
    • B65B47/10—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure by vacuum
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/08—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure
    • 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
    • B65B9/08—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 in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing

Definitions

  • the invention relates to a process for the continuous production of film containers filled with a filling material by V-shaped folding of a sealable film along a fold line running in the transport direction of the film until at least partial superimposition of the film halves lying on both sides of the fold line, by subsequent connection of the film halves by strip-shaped first ones Sealing seams, which are separated from one another and also have gaps at the film edges, extend between the folding line and the film edges and form individual pockets within a chain of containers, by filling the pockets from above through the spaces between the first sealing seams, by closing the pockets Sealing the film halves by means of second sealing seams, which lie in the edge region of the film halves and bridge said gaps between the first sealing seams, and by following it separates the filled pockets into individual or group-connected foil containers which have a floor area suitable for installation.
  • the known method is not tied to specific film thicknesses and film materials, it is primarily used to produce relatively dimensionally stable stand bottles, which are preferably used for sample packs and for advertising purposes. However, standing bottles with a filling volume of 1000 ml and significantly above can also be produced with the known method.
  • the invention has for its object to improve a method of the type described above in such a way that with this method using thin and soft foils the ratio of filling volume to surface is further improved, so that a significantly smaller amount of foil material is required per unit volume .
  • the manufacturing process and the mechanical outlay are to be simplified or reduced compared to the prior art.
  • the object is achieved in the method described at the outset according to the invention in that the wall elements of the pockets, which are initially still flat, are plastically deformed, at least in places, after the first sealing seams have been applied, forming a distance between the wall elements, and are either filled simultaneously or subsequently and then sealed .
  • the wall elements of the so-called “pockets” are deformed after the pockets have been formed.
  • Thermally and / or mechanically deformable foils are suitable as foil material, preferably soft foils with a thickness between 50 and 500 ⁇ m, the container volume finally produced being between 5 and 5000 ml.
  • Polypropylene, polyethylene, polyamide and polyurethane are possible as film materials, in single or multi-layer design, with multi-layer films in particular considering those with a barrier layer against loss of steam and aroma.
  • shrinkable foils are preferably used, which are shrunk onto the contents after filling.
  • multi-layer or multi-layer foils must be used, the surfaces of which are sealable due to the V-shaped folds.
  • the plastic deformation of the wall elements between the first sealing seams can preferably be carried out in a hollow shape, so that all containers receive the same filling volume.
  • the plastic deformation of the wall elements can take place either by mechanical expansion bodies by vacuum deformation or by simple inflation. This inflation can take place in a molding station upstream of the filling station.
  • the spreading medium can be heated to a temperature above the softening temperature of the film material to make it easier for the pockets to expand.
  • the hollow mold is cooled in a particularly advantageous manner when deforming heated wall elements.
  • the invention also relates to a device for performing the method described above and is equipped for this purpose with a storage station for the foils, with a folding station for V-shaped unfolding of the foil along a fold line running in the longitudinal direction of the foil until at least partial superimposition of the two the film halves located with a first sealing station with first sealing tools for producing the strip-shaped first sealing seams between the folding line and the film edges and for delimiting pockets in between with filling openings and wall elements above, with a filling station with a metering device for filling the pockets from above with a second sealing station with second sealing tools for closing the filled pockets by means of second sealing seams, which bridge the gap between the first sealing seams in the area of the filling opening, with a Transport device for the transport of the film through the device and with a punching station with punching tools for separating individual or group-connected film containers.
  • Such a device which belongs to the prior art, is according to the invention characterized in that the first sealing station is followed by a molding station for the plastic deformation of the wall elements of the pockets, forming a distance between the wall elements.
  • the molding station described above also makes it possible to retrofit existing devices for producing the so-called pillow packs in such a way that the method according to the invention can be carried out on such devices.
  • FIGS. 1 and 2 show a storage station 1 in which there is a film roll 2, from which the film 3 is drawn off in the initially vertical direction via a deflection roller 4.
  • the axis of the deflection roller 4 lies horizontally.
  • a folding station 7 On the way to two vertical guide rollers 5, which enclose a narrow roller gap 6 between them, there is a folding station 7, in which the film 3 is folded in a V-shape along a folding line 8 running in the longitudinal direction of the film, to the point of congruence
  • the film halves 3a and 3b located on both sides of the folding line 8 lie one on top of the other.
  • the folding station 7 is followed by a first sealing station 9 with first sealing tools 9a and 9b.
  • the sealing tools can be moved in the direction of the double arrows in FIG. 2 and are provided with heating elements 9c.
  • the sealing tools 9a and 9b are designed in such a way that they form strip-shaped first sealing seams 10 which extend from the fold line 8 to the two film edges 11, which is not necessarily done in a straight line and perpendicular to the fold line 8 and the film edges 11 got to.
  • the sealing station 9 is followed by a molding station 16 with a hollow mold 17 which consists of two mold halves 17a and 17b which are movable in the direction of the two double arrows in FIG. 2.
  • the forming station 16 includes a pressure medium generator 18 which leads via a line system 19 to two nozzles 20 which can be inserted into the pockets 12 from above. These nozzles are thus arranged to be vertically movable.
  • the pressure medium generator 18 is designed as a hot gas source 21, which is indicated by a heating resistor 22 is.
  • the molding station 16 is in turn followed by a filling station 23, to which a metering device 24 is assigned, which has two further nozzles 25 which can be inserted into the pockets 12 which are still open at the top.
  • the metering device 24 can be raised and lowered in the sense of the double arrow.
  • suction cups 26 are arranged in pairs on both sides of the transport path of the film and pull the wall elements 14 and 15 apart at this point in such a way that the nozzles 25 can be inserted into the filling openings 27 formed thereby.
  • analog suction cups 26 are also assigned to the forming station 16 in order to be able to open the pockets 12 in the area of the film edges 11 to such an extent that the nozzles 20 can be inserted.
  • mechanical guides and a sequence control are provided in the area of the molding station 16, through which the mold halves 17a and 17b are first lowered, whereupon the film edges are spread by the suction cups, not shown, and the nozzles 20 are inserted.
  • the suction cups are raised and / or withdrawn and the mold halves 17a and 17b are likewise raised and closed and thereby brought into a position which will be explained in more detail with reference to FIGS. 3 and 4.
  • the filling station 23 is now in turn followed by a second sealing station 28, which includes second sealing tools 28a and 28b, each of which is provided with a heating element 28c.
  • These sealing tools are also movable in the sense of the double arrows in FIG. 2. They are designed in such a way that second sealing seams 29 are formed by the action of the sealing tools in the area of the film edges 11, which seal the pockets 12 by bridging the spaces between the first sealing seams 10 bridge. In this way, a series of filled and all-round sealed film containers is created, which are subsequently fed to a punching station 30, which includes punching tools 30a and 30b. These are movable in the direction of the double arrows in FIG.
  • FIG. 5 Such a film container is shown in FIG. 5.
  • the device according to FIGS. 1 and 2 also includes a transport device 32, which is only indicated by an arrow.
  • This transport device transports the film or film composite and finally the container chain step by step through the device, the step length corresponding to the dimensions and the number of film containers produced at the same time. It is possible to manufacture the bags or film containers individually. It is also possible, as shown in FIGS. 1 and 2, to produce the bags or film containers twice at the same time (in a two-up); However, it is also possible to produce three, four or more bags or film containers at the same time if the individual stations are equipped with appropriate multiple tools. With regard to the number of bags or film containers produced at the same time, FIGS. 1 and 2 are only to be assessed as examples.
  • the processes in the forming station 16 will now be explained in more detail with reference to FIGS. 3 and 4:
  • the film halves 3a and 3b which are initially still flat and one on top of the other, are introduced into the forming station 16, the film edges 11 lying in a plane indicated by the dash-dotted line EE is.
  • the film edges 11 are then spread over a length predetermined by the distance between the sealing seams 10 by the suction cups already described but not shown in the drawing, so that the nozzle 20 of the hot gas source 21 is located between the spread film edges can be introduced from above.
  • the two mold halves 17a and 17b are moved into the position shown in FIGS.
  • the film edges 11 being clamped between the nozzle 20 and the mold halves 17a and 17b in the manner shown.
  • the two mold halves are provided with an elastomeric lining 33, which has the shape of a hollow half cylinder for each mold half, so that the nozzle 20 is tightly enclosed with the film edges.
  • the mold halves are each provided with a cooling device 34, which consists of cooling channels within the metal mold halves. As can be seen from FIG. 4, there are numerous ventilation channels 17c in the mold halves 17a and 17b, through which the air trapped between the film and the mold halves can escape.
  • the film or pocket still has the shape and position shown in broken lines in FIG. 3.
  • the wall elements 14 and 15 of these pockets are pressed approximately in the direction of the arrows against the boundary walls of the hollow mold 17 until they reach the position shown in solid lines.
  • the cooling effect of the cooled mold halves takes effect, and the film solidifies, as it were, according to the inner volume of the hollow mold 17.
  • the hot gas supply is now interrupted and the mold halves 17a and 17b are now pulled apart in the direction of the outer arrows, and subsequently the nozzle 20 pulled upwards.
  • the now prefabricated pockets can now be transported further in the direction of arrow 35 in FIG. 4, specifically to the filling station 23.
  • the nozzle 20 can be designed as a coaxial arrangement of two pipes, one of which Pipe for introducing the hot gas and the other is used for gas removal. In this case, a larger amount of hot air can be introduced into the nascent pocket 12, since the blowing process is not limited in time by the volume of the hollow mold. It is of course also possible to carry out the same process through two nozzles or pipelines lying next to one another.
  • the drawing in Figures 3 and 4 also corresponds to the filling station, i.e.
  • the nozzle 25 of the filling station takes the place of the nozzle 20, and heated and / or pressurized filling material is filled into the respective pocket, as a result of which the same process can be achieved until the filling process by contacting the wall elements 14 and 15 on the walls of the mold cavity. Since a larger amount of heat is naturally stored in the pockets by heated filling material, so the cooling process of the film material takes correspondingly longer, it must be considered in detail whether separate molding and filling stations according to FIGS. 1 and 2 should be used with regard to the manufacturing capacity of the device or not.
  • liquid or flowable substances such as liquids, pastes, powders, which can be conveyed through a pipeline, can be used as filling material.
  • a cover made of cardboard or a comparable material in the form of a "support corset", the lower edge of which is in the same plane or is lower than the bottom of the film container.
  • This cover is expediently only partially and detachably connected to the film container, so that the container parts can be separately disposed of different disposal methods or recycling methods after loosening this "stapling".
  • the cover can also be printed with contents, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Closing Of Containers (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP93120082A 1992-12-21 1993-12-13 Procédé et dispositif pour la fabrication continue de récipients en feuille Expired - Lifetime EP0603704B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4243325A DE4243325C2 (de) 1992-12-21 1992-12-21 Verfahren und Vorrichtung zum kontinuierlichen Herstellen von gefüllten Folienbehältern
DE4243325 1992-12-21

Publications (2)

Publication Number Publication Date
EP0603704A1 true EP0603704A1 (fr) 1994-06-29
EP0603704B1 EP0603704B1 (fr) 1998-06-10

Family

ID=6476011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120082A Expired - Lifetime EP0603704B1 (fr) 1992-12-21 1993-12-13 Procédé et dispositif pour la fabrication continue de récipients en feuille

Country Status (4)

Country Link
EP (1) EP0603704B1 (fr)
AT (1) ATE167134T1 (fr)
DE (2) DE4243325C2 (fr)
ES (1) ES2118878T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0832819A1 (fr) 1996-09-26 1998-04-01 Scolaro, Mauro Dispositif d'emballage sous vide, spécialement pour produits alimentaires
WO1998026997A3 (fr) * 1996-12-16 1998-10-01 Boots Co Plc Emballage
AU749585B2 (en) * 1998-03-25 2002-06-27 Bonanni, Alessandro Device for packaging materials in a vacuum chamber
NL1019738C2 (nl) * 2002-01-14 2003-07-18 Tissue Culture Propagation Int Werkwijze voor het in een foliemateriaal verpakken van een substraat alsmede zo verkregen samenstel.
EP2177438A1 (fr) 2008-10-17 2010-04-21 Extru SA Dispositif pour l'emballage sous vide, en particulier de produits alimentaires
CN102137753A (zh) * 2008-06-30 2011-07-27 伊西康公司 形成预制袋的方法和装置
ITTV20100019A1 (it) * 2010-02-19 2011-08-20 Extru Sa Dispositivo per il confezionamento sottovuoto, particolarmente di prodotti alimentari
WO2011101190A1 (fr) 2010-02-19 2011-08-25 Extru Sa Dispositif de conditionnement sous vide, en particulier pour des aliments
ITTV20100117A1 (it) * 2010-08-06 2012-02-07 Extru Sa Dispositivo perfezionato per il confezionamento sottovuoto, particolarmente di prodotti alimentari e materiali tecnici.
WO2012080932A1 (fr) 2010-12-13 2012-06-21 Blu Pack Di Scolaro Mauro Dispositif de conditionnement sous vide, en particulier pour le conditionnement de produits alimentaires

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1286899B1 (fr) 2000-05-10 2004-12-22 3M Espe AG Dispositif pour stocker et melanger des matieres pateuses
FR2895982B1 (fr) * 2006-01-10 2010-07-30 Bel Fromageries Procede de fabrication d'un ensemble comprenant un recipient souple et une dose de produit alimentaire tartinable conditionnee dans le recipient.
CN102658888B (zh) * 2012-05-04 2013-07-31 江南大学 联体包装袋的开袋装置
DE102017114861A1 (de) * 2017-07-04 2019-01-10 Multivac Sepp Haggenmüller Se & Co. Kg Schalenverschließmaschine
DE102019216991A1 (de) * 2019-11-05 2021-05-06 Multivac Sepp Haggenmüller Se & Co. Kg Tiefziehverpackungsmaschine mit falteinrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114172A (en) * 1961-09-28 1963-12-17 Rhenopack G M B H Method and apparatus for manufacture of hollow bodies
US3792144A (en) * 1966-09-26 1974-02-12 Dow Chemical Co Packaging process
US3953273A (en) * 1974-03-14 1976-04-27 Hoerner Waldorf Corporation Process for forming visual display packages
DE2453201A1 (de) * 1974-11-09 1976-05-13 Bosch Gmbh Robert Vorrichtung zum herstellen von beutelpackungen
EP0479152A2 (fr) * 1990-10-02 1992-04-08 SARONG S.p.A. Dispositif pour la formation de cellules dans des bandes continues, spécialement pour l'emballage de suppositoires et similaires

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1133114B (de) * 1956-09-03 1962-07-12 Formplastic G M B H Verfahren und Vorrichtung zum Herstellen von Behaeltern aus thermoplastischem Kunststoff
DE3643030A1 (de) * 1986-12-17 1988-06-30 Unionpack Ind Lohnverpackungs Verfahren zum herstellen eines folienbehaelters, nach dem verfahren hergestellter folienbehaelter und tiefziehform fuer die durchfuehrung des verfahrens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114172A (en) * 1961-09-28 1963-12-17 Rhenopack G M B H Method and apparatus for manufacture of hollow bodies
US3792144A (en) * 1966-09-26 1974-02-12 Dow Chemical Co Packaging process
US3953273A (en) * 1974-03-14 1976-04-27 Hoerner Waldorf Corporation Process for forming visual display packages
DE2453201A1 (de) * 1974-11-09 1976-05-13 Bosch Gmbh Robert Vorrichtung zum herstellen von beutelpackungen
EP0479152A2 (fr) * 1990-10-02 1992-04-08 SARONG S.p.A. Dispositif pour la formation de cellules dans des bandes continues, spécialement pour l'emballage de suppositoires et similaires

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0832819A1 (fr) 1996-09-26 1998-04-01 Scolaro, Mauro Dispositif d'emballage sous vide, spécialement pour produits alimentaires
WO1998026997A3 (fr) * 1996-12-16 1998-10-01 Boots Co Plc Emballage
AU749585B2 (en) * 1998-03-25 2002-06-27 Bonanni, Alessandro Device for packaging materials in a vacuum chamber
US6470652B1 (en) * 1998-03-25 2002-10-29 Mauro Scolaro Device for packaging materials in a vacuum chamber
NL1019738C2 (nl) * 2002-01-14 2003-07-18 Tissue Culture Propagation Int Werkwijze voor het in een foliemateriaal verpakken van een substraat alsmede zo verkregen samenstel.
CN102137753A (zh) * 2008-06-30 2011-07-27 伊西康公司 形成预制袋的方法和装置
CN102137753B (zh) * 2008-06-30 2015-01-07 伊西康公司 形成预制袋的方法和装置
EP2177438A1 (fr) 2008-10-17 2010-04-21 Extru SA Dispositif pour l'emballage sous vide, en particulier de produits alimentaires
WO2011101190A1 (fr) 2010-02-19 2011-08-25 Extru Sa Dispositif de conditionnement sous vide, en particulier pour des aliments
CN102803077A (zh) * 2010-02-19 2012-11-28 埃克斯楚股份有限公司 用于真空包装、尤其用于食品的真空包装的设备
CN102803077B (zh) * 2010-02-19 2014-11-19 埃克斯楚股份有限公司 用于真空包装、尤其用于食品的真空包装的设备
ITTV20100019A1 (it) * 2010-02-19 2011-08-20 Extru Sa Dispositivo per il confezionamento sottovuoto, particolarmente di prodotti alimentari
ITTV20100117A1 (it) * 2010-08-06 2012-02-07 Extru Sa Dispositivo perfezionato per il confezionamento sottovuoto, particolarmente di prodotti alimentari e materiali tecnici.
WO2012080932A1 (fr) 2010-12-13 2012-06-21 Blu Pack Di Scolaro Mauro Dispositif de conditionnement sous vide, en particulier pour le conditionnement de produits alimentaires
US9919819B2 (en) 2010-12-13 2018-03-20 Extru Sa Device for vacuum packaging, particularly of food products
US11180266B2 (en) 2010-12-13 2021-11-23 Machsolutions Sa Device for vacuum packaging, particularly of food products

Also Published As

Publication number Publication date
DE4243325C2 (de) 1996-06-05
ES2118878T3 (es) 1998-10-01
DE4243325A1 (de) 1994-06-23
DE59308669D1 (de) 1998-07-16
ATE167134T1 (de) 1998-06-15
EP0603704B1 (fr) 1998-06-10

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