EP3459867A2 - Procédé et machine de fabrication de sachets en feuille remplis, scellés longitudinalement et transversalement, d'une bande de feuille non conservant la forme - Google Patents

Procédé et machine de fabrication de sachets en feuille remplis, scellés longitudinalement et transversalement, d'une bande de feuille non conservant la forme Download PDF

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Publication number
EP3459867A2
EP3459867A2 EP18193341.7A EP18193341A EP3459867A2 EP 3459867 A2 EP3459867 A2 EP 3459867A2 EP 18193341 A EP18193341 A EP 18193341A EP 3459867 A2 EP3459867 A2 EP 3459867A2
Authority
EP
European Patent Office
Prior art keywords
film
transport
sealing
sealed
sheet
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
EP18193341.7A
Other languages
German (de)
English (en)
Other versions
EP3459867B1 (fr
EP3459867A3 (fr
Inventor
Gerhard Schubert
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.)
Gerhard Schubert GmbH
Original Assignee
Gerhard Schubert 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 Gerhard Schubert GmbH filed Critical Gerhard Schubert GmbH
Publication of EP3459867A2 publication Critical patent/EP3459867A2/fr
Publication of EP3459867A3 publication Critical patent/EP3459867A3/fr
Application granted granted Critical
Publication of EP3459867B1 publication Critical patent/EP3459867B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • 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
    • B65B11/004—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material in blanks, e.g. sheets precut and creased for folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • 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
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/105—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the axis of the tube being parallel to the conveying direction
    • 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
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/12—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/08—Forming three-dimensional [3D] containers from sheet material
    • B65B43/10—Forming three-dimensional [3D] containers from sheet material by folding the 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
    • 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
    • B65B51/16—Applying or generating heat or pressure or combinations thereof by rotary members
    • 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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • 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
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means by ultrasonic welding

Definitions

  • the invention relates to a method and an apparatus for producing both longitudinally and transversely sealed, with at least one product each filled, foil bags from a particular flat state in the initial state.
  • Such filled, all-round tightly sealed, foil bags are produced in large numbers as a tubular bag in the so-called flow-pack method.
  • a sequence of products to be packaged in a transport direction is transported one behind the other at a distance and a wrapped in the same direction and at the same speed film web viewed in the direction wrapped around the product stream and closed with a running in the transport direction longitudinal seam with the film running to a film tube.
  • This film tube produced in a continuous process is subdivided downstream into individual tube bags by transverse sealing seams which are spaced apart in the direction of travel while the film tube is running, and these can then be separated from one another.
  • This flowpack method has the advantage that high packaging rates can be achieved because of the continuous flow.
  • the disadvantage of the method lies in the low variability of the process, since all operations carried out in the run, such as film feed, arranging / placing the products on a transport device, producing the longitudinal seam, producing the transverse seam at a matching speed.
  • the cross sealing is usually done by means of two mutually running transverse sealing rolls on the circumference of the heat-sealing jaws, the sealing time increases with reduced throughput speed of the film tube and thus reduced speed of the transverse seal rollers in an inadmissible way.
  • a further disadvantage is the supply roll for the film to be provided above or below the product stream, which presents problems in particular for the change of the supply roll and the joining of the end of a first film web to the beginning of a new film web which is located on a new supply roll Losses of products and tubular bags during the change causes.
  • the packaging is, for example, a cardboard packaging
  • an appropriate carton blank is usually placed on the transport device and, for example, in the successively approached workstations, first the carton is erected to a three-dimensional box which is still open on the top side, glued to the carton filled with products, the still open top of the box closed by placing a lid or flipping a lid section of the box, and usually glued.
  • the individual processing operations are performed at the individual workstations by means of robots positioned there on the transport path.
  • a transport device known in this context consists of individual transport carriages, which can be moved independently of one another in the transport direction along a guideway - that is to say they can be controlled in their speed independently of the other transport carriages, can also be stopped and moved back and forth - as long as this does not lead to collisions with leading on the same guideway or subsequent transport carriage leads.
  • Movable independently of one another also means that it can be moved independently of one another on the same guideway, and can not be moved independently of one another at individual points of the camouflage device, but can be moved independently of one another over the entire length of the transport path, whereby collisions of the transport carriages are of course to be avoided.
  • each of the transport carriage and at any time regardless of the movements of the other transport carriage can be moved in terms of direction, speed and also reducing the vehicle speed to zero.
  • the transport carriage can only be moved forwards or backwards in a single transport direction.
  • the guideway is arranged on a web body, which also runs in the transport direction and, viewed in the transport direction, carries not just one but a plurality of guideways, for example one on its underside and one on its top side.
  • the track body consists of a plurality of modules which adjoin one another in the transport direction
  • individual track body modules of this kind can be used.
  • the starting module and the end module to be pivoted about a pivot axis extending in the transport direction, so that the example previously upper guide track is then located on the underside of the track body and vice versa.
  • a transport carriage located on such a pivotable sheet-body module can be pivoted from the upper to the lower guide track, and subsequently be returned to the starting module along the lower guide track of the entire transport device, in particular in the empty state. It goes without saying that for this purpose the transport carriage secured to the guideway against falling, in particular positively secured, must be.
  • the packaging material must be at least partially dimensionally stable and intrinsically stable.
  • the object is achieved in that the film bag not from a running film web - and not necessarily with the intermediate step of producing a film tube - are made, but from individual, finite film sheets, the only by appropriate deformation and Sealing areas of this film sheet against each other are formed to the film bag, preferably so that the entire film sheet is used for the film bag and no remainder or waste left.
  • form-containing packaging such as cardboard packaging
  • form-containing foil sheets each preferably received individually on one of several independently movable in a transport device transport carriage, so usually placed on the transport carriage on the slides Sheet deposited at least one product to be packaged.
  • a non-film sheet Under a non-film sheet is understood to form that support the film sheet only in a central region, especially only under the center of gravity of the film sheet, the edges of the film sheet gravity down hanging, since the film sheet does not possess sufficient intrinsic stability to maintain its level position. It is preferably assumed that the film sheet over its entire extent - in particular along its main plane - has the same stability and / or the same thickness and / or consists of the same material.
  • a second sealing seam is produced which preferably runs transversely to the first sealing seam and is likewise preferably produced by placing and sealing two regions of the same film sheet against one another, so that a filled and circumferentially tightly sealed film bag is produced.
  • the film sheet is - usually only a sheet-sheet on a transport carriage, in some cases, several - transported by the transport carriage in the transport direction from one to the next processing station where performed the individual processing steps become.
  • a first bag shape is a tubular bag: In this case, as the first sealing step to be sealed against each other two areas two opposite, preferably extending in the transport direction of the transport device, edge regions of the film sheet selected, which are sealed against each other, preferably over their entire length.
  • this can be done in a continuous process, so while the transport carriage moves with the film sheet in the transport direction, in particular moves along a corresponding, usually stationary, sealing unit.
  • two opposite regions of the film tube formed by the first sealing step are placed against each other and sealed, preferably at each of the two ends of the film tube, the opposing regions of the closed-loop tube, which is thereby pressed flat in this area.
  • the opposing-laying and sealing takes place over the entire width of the film tube, and if this takes place at both ends, thereby two second sealing seams are produced, each seal one end of the film tube tight and thereby a total sealed film bags is produced in the form of a tubular bag.
  • a fin is formed in the form of the two mutually juxtaposed and sealed edge regions which form the first sealed seam, in that, with regard to the cross section of the film tube produced thereby, this fin extends radially from the otherwise annular, approximately circular, closed cross section of the Foil tube protrudes outward.
  • This fin is folded up before the production of the second sealing seam to the outer periphery of the remaining film tube, so folded, in one of the two possible pivoting directions, so so in the subsequent Producing the second sealed seam, the transverse sealing seam, this transverse seam in the area of the folded-over fin from four layers of film, but apart from the fin only two layers of film.
  • the folded-over fin is likewise welded to the other two foil layers, and not only the two other foil layers against each other in order to permanently hold the fin in the folded state on the circumference.
  • the folded sealing fin is located in the width region of the product in the film bag, but it can also be provided that the fin is deliberately arranged outside this width region, ie viewed in the transport direction or in the direction of travel first seal seam viewed from the width range of the product contained therein pioneering.
  • the second sealed seam is preferably not only transversely, but viewed in the plan view in particular made perpendicular to the first seal seam running. This can be achieved, for example, by making the second sealing seam running transversely to the transport direction.
  • the film sheet in particular the film tube already produced, stand still in the transport direction and a sealing unit for producing the at least one second sealed seam are brought to the tubular bag, in particular in the transverse direction to the transport direction.
  • the other possibility is to produce the at least one second sealed seam extending in the transport direction.
  • the film tube preferably with the aid of the carriage on which it is located, is rotated so that the course direction of the second sealed seam to be produced then runs in the transport direction.
  • the disadvantage is that while the structural complexity for the possibility of rotation of the film tube, in particular on the transporting transport carriage, is greater, on the other hand the advantage that the entire sealing process with all sealing seams in itself in the transport direction moving foil sheet or film Hose can be made.
  • the opposing-laying and sealing of the areas of the film sheet for producing the first seal seam and / or the flipping the seal fin can be done anyway, while the film sheet in the transport direction with the aid of preferably the transport carriage on which he arranged is, moves.
  • the folding of the sealing fin is preferably carried out in a Umlege unit having a Umlege-guide surface, which flips the fin when the film tube and thus the sealing fin moves along the transport direction by the Umlege unit.
  • a second bag form is a bag bag:
  • an open bag on one side is produced from the film sheet by two strip-shaped areas adjoining one another and being sealed in the first sealing step as two areas of the film sheet to be placed against each other and sealed.
  • one and the same edge region of the film sheet are selected, placed against each other and sealed.
  • the two regions preferably each have half the length of the strip-shaped region, in particular the edge region, which is therefore preferably bent exactly in the middle of its length.
  • the selected strip-shaped regions of the film sheet can be in the transport direction or transversely thereto, in particular perpendicular thereto.
  • the bag lies or stands preferably also depends on the shape and position of the product enclosed by the bag: Because the product is deposited on the film sheet so and / or the location of the first sealing seams provided so that the at least one first Sealing seam extends laterally outside the product in the direction in which the product does not have just its smallest extension direction, but in which it has its greatest extent.
  • the first sealed seam should extend along one of the narrow sides of the plate shape.
  • the open side of the bag is then sealed in a second sealing step by juxtaposing and sealing the two areas opposite and to be sealed on the open side on both sides of the bag opening, these two edge areas of the bag preferably being on the same Should end position, so preferably one side wall of the bag should not project beyond the other side wall, in particular not more than 1 mm, more preferably not more than 2 mm.
  • the processing steps are carried out on the film sheet and / or film tube and / or the film bag while it is on the carriage. Only in exceptional cases, the film is removed from the slide slide for processing.
  • the retention of the film sheet on the carriage is preferably carried out by means of suction of the film sheet on the carriage by means of negative pressure, wherein this holding, in particular suction, during the entire processing of the film takes place, so until the finished circumferentially sealed film pouch produced is, except that there is in between a removal of the film from the carriage.
  • Sealing is accomplished either by heat sealing a heat sealable film material, which must include at least one heat sealable coating, if the base material of the film itself is not heat sealable, or by gluing.
  • the heat-sealing may be effected by means of ultrasonic sealing or by means of heat-seal stamps which have been heated before sealing, preferably also during sealing, preferably by means of electrical energy.
  • sealing of sealing seams which always have the same number of layers in their entire course, preferably carried out by means of ultrasonic sealing and / or the production of sealing seams, which changes the number of foil layers in their course, using hot-sealing jaws ,
  • the film sheet can also extend laterally in the state laid on the transport carriage - ie in the transport direction of the transport carriage and / or in the transverse direction thereto - beyond the support surface of the transport carriage supporting it.
  • this object is achieved in that on the one hand a transport device with a independently along the transport device, in particular the guideways of the transport device, movable transport carriages present is, wherein the transport carriages have a holding device for holding at least one film sheet lying thereon.
  • the foil sheet itself is not dimensionally stable, that is not stable transversely to its main plane, it will rest through the usually flat bearing surface of the transport carriage on this level. Even if the film sheet protrudes laterally over the support surface and hanging there, this should still fall under the concept of a flat initial state of the film sheet.
  • the erecting station must be designed such that it is capable of deforming, in particular without additional stretching of the material of the film sheet, areas, in particular edge areas, of the film sheet against each other, and the sealing station must be formed be that she is capable of these juxtaposed areas, in particular one and the same foil sheet to seal tightly against each other.
  • the laying of the film sheet on the transport carriage and / or placing the product on the sheet lying on the carriage slide preferably carried out by means of at least one robot.
  • film bags can be made very variable, especially with regard to the size and the material of the film very different film bag, especially if the individual workstations and in particular the work devices used therein are adjustable in terms of different processing parameters.
  • the holding device for holding the applied film sheet is at least one vacuum cleaner, wherein the transport carriage preferably comprises its own vacuum pump in order to generate the required negative pressure for the at least one vacuum cleaner.
  • the considered in the plan view support surface of the transport carriage for the film sheet may be smaller than the laid on the transport slide foil sheet.
  • the transport carriage preferably comprises an easily replaceable, in particular without tool exchangeable, in particular attachable, Format plate whose freely accessible from the outside side forms the support surface.
  • the format plate relative to the rest of the transport carriage, so the main body of the transport carriage, or the entire transport carriage about a transversely, in particular perpendicular to the main plane of the format plate, or the support surface of the format plate extending pivot axis pivotally, preferably at least 90 °, in particular rotatable.
  • the film bag lying on it or even film tube or even foil bag can be aligned so that the direction of extension of the next seal seam to be produced coincides with the transport direction or straight in the transverse direction thereto, depending on what the attacking the Sealing unit on the film is cheaper.
  • this is preferably arranged in the direction of passage through the device after the filling station, in which the product is placed on the film sheet.
  • the filling station can also be used after the erecting station and even after the first sealing station for producing the first sealing seams, ie after the film has been opened. Bag, be arranged in the device.
  • the erection ie the deformation of the film sheet in a three-dimensional shape, by means of guide surfaces, which are part of the erection station, which contact by traversing the film sheet portions of the film sheet and are shaped so that they relocate these areas to the desired position and, if necessary, keep them in this position.
  • sealing station at least one, but preferably two, sealing stations are provided in the direction of passage at a distance along the transport device.
  • the sealing station comprises a sealing unit capable of forming a longitudinal sealing seam on a sheet of film passing through the sealing unit or along the sealing unit, moved by means of the transport carriage.
  • the sealing unit is preferably stationarily positioned in the direction of travel on the transport device, but can approach the transport carriage in the transverse direction or move away from it.
  • the sealing station may further comprise a sealing unit capable of forming a transverse sealing seam running transversely to the direction of passage, horizontally or vertically, but then preferably on the foil sheet resting in the direction of passage through the sealing unit ,
  • such a sealing unit is preferably arranged in the direction of passage stationary on the transport device, but in the transverse direction relative to the transport device, so in particular the transport carriage running thereon, designed to be movable.
  • the sealing unit may be an adhesive unit, but is preferably an ultrasonic sealing unit or heating-baking-sealing unit, since this requires no additional adhesive to be applied.
  • this either comprises a storage container in which cut-to-size, finite foil sheets are stored, and individually removed therefrom and placed on the transport carriages, or a production unit for such foil sheets:
  • a manufacturing unit the film sheets are produced as required from a supply roll, which is present in the manufacturing unit, by means of a film strip, which is withdrawn from the supply roll, by means of a separating device, in particular a cutting device, Sections of the film tape are produced.
  • such a cut-off film strip can directly have the dimensions of the desired film sheet or have a multiple of the dimensions of the required film sheets, so that then the film strip must be divided again into several film sheets which also happens within the manufacturing unit.
  • such a transfer station may preferably comprise a further transport device for the outer packaging, in particular cartons, whose transport direction is preferably parallel and preferably in the opposite direction to the transport direction for the films Bends and the resulting film bag runs, the two transport devices are independently controlled and driven.
  • the device comprises a machine frame which carries the components described, that is to say both the one or the two transport devices as well as the individual processing stations and processing units and optionally the robots performing the conversion operations.
  • FIG. 1a and as well FIG. 1b show in the top view of the machine for producing the foil bag.
  • a product strip 30 runs parallel to one another in a product feed direction 10 'on which the products P disposed thereon are transported, as well as a transport device 110, initially the film sheets 100 and downstream of the resulting tubular bag 102 in the direction of passage 10 the machine is transported.
  • the passage direction 10 for the film sheet is in the FIGS. 1a . b directed from left to right.
  • FIG. 1a the machine including the machine frame 20 carrying all the components of the machine is shown, which consists in the direction of passage 10 of a plurality of successively arranged frame modules 20.1, 20.2, which are viewed in plan view rectangular and in the direction of passage usually aligned with each other, but also have an offset can, as in FIG. 1a between the last sealing station 5 and the 1st sales station 6 visible and necessary, as explained later.
  • Each of these rack modules 20.1 consists of - in this supervision of the FIG. 1a not visible, only in Figure 1c illustrated - upright frame columns 20a in the corners of the square-topped frame module 20.1, 20.2, which are connected by in the direction of passage 10, the longitudinal direction of the machine, extending longitudinal beams 20b and transversely extending transverse members 20a in its upper end region ,
  • the individual frame modules 20.1 are mechanically connected to one another, in particular screwed, and also connected to each other in terms of data technology and energy.
  • the transport device 110 for the film bag production in particular for the tubular bag production, extends in the machine in the direction of passage 10 from the beginning of the first frame module 20.1 to the last frame module and possibly even beyond, while the in FIG. 1a below visible, from the right incoming product strip 30 in the second frame module 20.2 from the left, ie in the direction of passage 10 ends.
  • the left-most frame module 20.1 is, on the one hand, a sheet station 1 in the form of a sheet-producing unit 22 for producing these film sheets 100 from a wound on a supply roll 23 Film web present and on the other hand a laying station 2 for placing the film sheets 100 on a transport carriage 120 of the transport device 110 housed.
  • the supply roll 23 is attached to the frame module 20.1, but on the in FIG. 1a below lying outside, which primarily serves the easier change of the supply roll 23 when it is outside of the frame module 20.1.
  • Such a stock roll unit with therein supply roll 23 is in Figure 1c shown separately, whereby two of the upright frame columns 20a of the frame module 20.1 can be seen, to which the supply roll unit and thus also the supply roll 23 is attached.
  • foil sheets 100 are replaced by a in FIG. 1a indicated only by arrows and in FIG. 1b represented robot 50 ', which must have only two degrees of freedom, and taken in the transverse direction 11 within this first frame module 20.1 of the machine transferred to a transport carriage 120 of the transport device 110, which of course for this purpose in the direction of passage 10 at the corresponding location of the transport device 110 must be positioned.
  • a plurality of consecutively arranged foil sheets 100 loaded transport carriage 120 is then moved in the direction of passage 10 in a usually arranged in the next rack module 20.2 filling station 3, which can also claim several rack modules 20.2, and in the by means of a - in FIG. 1a for clarity, only indicated and FIG. 1b shown - or more robots 50 hanging over the transport device 110 and the product tape 30, each one or more products P are taken from the product tape 30 and stored in the correct rotational position and position on each one of the film sheets 100.
  • the transport carriage 120 with the now filled, lying on film sheets 100 is further transported to a Traumrichtestation 4, then to a first sealing station 5 for producing a longitudinal sealing seam 101 ', then on to a further sealing station 5 for producing the transverse seam 102' in all Usually each housed in a separate rack modules 20.3 to 20.5.
  • another transport device 110 ' which is preferably formed with respect to the independently movable carriage 120' and the transport direction 10 analogous to the transport device 110 , and extends from this transfer station 6 to the right.
  • the sequence of producing the film bag 102 from a respective film sheet 100 with product P applied thereon in the erection station 4 and the sealing stations 5 is determined by means of a single film sheet 100 in the Figures 2 and 3 shown, wherein the Figures 2a1, 2b1 . 2c1, 2d1, 2e1 show the situation in the top view and those provided with the parallel numbering Figures 2a2, 2b2 . 2c2 and 2d2 next to it the respective same situation considered in the direction of passage 10.
  • FIG. 2e1 which represents the finished tubular bag 102 in the plan, there is no additional analog representation considered in the direction of passage 10, since this view of the finished tubular bag 102 already in Figure 2d2 is apparent.
  • FIG. 3 A first procedure show the Figures 2 :
  • the Figures 3 is a part of a slightly different, second procedure with respect to the states c, d and e shown, again the Figures 3c1, 3d1, 3e1 an illustration viewed in the plan view of the machine and the analog numbered Figures 3c2 and 3d2 the representation of the same manufacturing step considered in the direction of passage 10, in turn, the FIG. 3e1 no analog representation considered in the direction of flow 10 contains, since this state of the tubular bag 102 already in Figure 3d2 is apparent.
  • First procedure First, the foil sheets are provided and placed one or more foil sheets on a slide 120.
  • the product P which is cuboid here, according to Figure 2a1 placed on a foil sheet 100 so that this viewed from the top projecting on all sides over the product P. Viewed in the plan view, the product P lies with its greatest direction of extent in the direction of passage 10.
  • the film sheet 100 in the transverse direction 11 is wider than the size plate 15 of the carriage 120, on the upper side of the sheet of film 100 is held by means of suction applied to vacuum suckers 13.
  • edges or edge regions 100a, b of the foil sheet 100 preferably extending in the direction of passage 10 are cut according to the in FIG FIG. 2a2 plotted arrows and above the product P, preferably over its center, placed in the transverse direction 11 against each other, so that the product P in this longitudinal direction, viewed in the direction of passage 10, is wrapped by the sheet of film 100 and the juxtaposed edge portions 100a, b one of the Top of the product P upwardly projecting fin form 101c, whose initially two separate layers of film according to Figure 2b1, 2b2 are sealed against each other to a longitudinal sealing seam 101 'extending in the longitudinal direction 10.
  • sealing jaws 19a, b of a sealing unit 19 On both sides of the initially two-layered fin 101c in the transverse direction 11 brought up sealing jaws 19a, b of a sealing unit 19 and press the two layers of the fin 101c against each other and weld them due to the temperature of the sealing jaws 19a, b against each other.
  • This can also be done in a continuous process by the sealing jaws 19a, b sealing rollers 19a, b, as in FIG.
  • the aligned about the vertical 12 roller axles 19 ' are preferably already biased against each other and driven in rotation, and thereby introduced therebetween, still two-layered fin 101c weld, which can be done alone by advancing the carriage 120 in the direction of passage 10, so that the sealing rollers 19a, b can be stationarily positioned.
  • a film tube 101 is now formed, which is still open at the front and rear end in the direction of passage 10.
  • the fin 101c is folded down from the upright position onto the adjoining region of the outer periphery of the film tube, which is stabilized by the product P, which is usually relatively tightly enclosed therein, as in FIG Figure 2c2 shown in the arrow direction.
  • the lower sealing jaw 19a moves transversely under the supernatant with which the film tube 101 protrudes in and against the longitudinal direction 10 on the product, and preferably raises this lower portion of the supernatant to about half the height of the product P, while the upper sealing jaws 19b with its underside is still at a height above the product P and the film tube 101.
  • the height-movable upper sealing jaws 19b descends on the lower sealing jaws 19a until, between them, the two layers of the supernatant of the film tube 101 are pressed together and by means of the sealing jaws 19a, b against each other to the transverse sealing seam 102 'are welded.
  • the fork-shaped sealing tool 19 in the transverse direction 11 so far displaced that it can be moved so far on the one hand from the path of movement of the film tube 101 out in a deactivated position and on the other hand at a positioned at the corresponding longitudinal position film tube 101 that the supernatant of the film tube 101 is in each case between the sealing jaws 19 a, b of one of the prongs of the fork-shaped sealing tool 19.
  • both tines - the free distance in the longitudinal direction 10 is slightly greater than the length of the product P in this direction - consists of such a pair of sealing jaws 19a, b, both supernatants of the film tube 101 are transversely sealed in a single operation.
  • the film tube 101 is rotated with the product P therein about an upright axis 12 'by 90 °, so that the film tube 101 extends in the transverse direction 11.
  • the format plate 15 is divided in the direction of passage 10 into several plate sections, each carrying a foil sheet 100 and the each individually about a vertical axis 12 'relative to the base body 16 of the transport carriage 120 are rotatable.
  • the projections 101a, b of the film tube 101 protrude beyond the product on both sides in the transverse direction 11.
  • the transverse seal 102 'in the region of the folded fin of the longitudinal seam is four-ply, otherwise only two-ply. Therefore, the transverse sealing seam 102 'is preferably produced by means of heat-sealing jaws and not by means of ultrasonic sealing jaws.
  • the conversion takes place by means of one or more further robots 50, which, as in FIG. 1B can be seen above the two transport devices 110, 110 'are arranged.
  • the rack modules 20.6, 20.7, in which the further transport device 110' is already present are in the transverse direction 11 to the rack modules 20.1. 20.5 arranged offset in order to fix both transport devices 110, 110 'therein.
  • the cartons 130 can in turn be arranged independently of each other along a track body 111 'movable carriage 120', so the basic structure of the two transport devices 110, 110 'be the same, or the boxes 130 are placed on a conveyor on which it transported and be removed after filling.
  • the transport device 110, 110 ' is shown in detail separately in the FIGS. 4 a - d shown.
  • the transport device 110 consists on the one hand of a track body 111, on which on two opposite sides a respective guide track 112a, 112b is formed, along the transport carriage 120 are movable, along each guide track 112a or 112b independently, so that on the same and even more so the different guideways 112a or 112b moving transport carriages 120 may independently have different speeds and even different directions of travel and thus can be stopped individually and independently of the other transport carriages.
  • FIG. 4a there is a transport carriage 120 respectively from a base body 16, which is moved along the guide track 112a or 112b, and on its side facing away from the guideway, a format plate 15 is attached, which in size to the respective transport task and equipment is adjusted.
  • the format plate 15 has such a length in the transport direction 10 that three foil sheets 100 can be placed one behind the other, and the format plate 15 is equipped on its upper side with vacuum acted upon suckers 13, which are positioned so that not only the still flat spread sheet of film 100th of which is held on the format plate 15, but also the tubular bag 102, which has a much smaller footprint than the original sheet of film 100th
  • a turning module 111b comprises, in which the web body 111 of this module about a pivot axis 17 which extends in the transport direction 10, at least 180 degrees can be pivoted so that the previously upper Guideway 112a, then, after the pivoting by 180 degrees, with the lower guide rail 112b of the adjacent, fixed track body module 111a aligned.
  • a carriage 12 initially located on the upper side of the track body 111 can be displaced by pivoting on its underside and pivoted on this pivoting the then lower guide track 112b - for example, in the empty state - are moved back to the starting point of the transport route to be rotated up there using the other turning module 111b, reloaded and used for the transport of film sheets 100 or products P.
  • FIGS. 4a to d are the rail body modules 111a, b, so the entire rail body 111, shown elevated on supports 113.
  • the track body 111 and thus the entire transport device 110 is of course connected to the base frame 20 of the machine, but again so that the rotatability of the track body modules in the turning modules 111b also with transport carriages 120 attached thereto without collision with other parts the machine, in particular its base frame 20, is possible, as well as the method of the transport carriage 120 with applied foil sheets 100 or products P along the entire transport path.
  • the pivotable sheet body modules in the turning modules 111b are pivoted by means of a controlled turning motor 114.
  • a respective drive in the base body 16 of the respective carriage 120 in the form of a travel motor 8, which can drive, for example, a pinion rotatably mounted in the base body 16, which has a pinion 111 in the transport direction 10 extending, not shown, rack meshes.
  • a vacuum pump 14 is preferably present in each base body 16, as well as a vacuum tank 14 ', from which the suckers 13 are subjected to negative pressure, while the vacuum pump 14 the negative pressure in the vacuum tank 14' upright receives.
  • the individual carriages 120 are supplied with electrical energy for the traction motor 8 as well as for the vacuum pump 14, preferably by non-contact, for example by induction, electrical energy from a running in the middle of the rail body 111 in the transport direction 10 current conductor 115th
  • FIG. 5a1 a possible third method sequence in representations analogous to the name and arrangement of Figures 2 , in the following also primarily the differences from the first procedure according to the Figures 2 be explained:
  • a first difference is that according to Figure 5a1 and following the product P viewed in the plan view with its greatest direction of extension not in the direction of passage 10, the transport direction of the film sheets 100 through the machine, as in the Figures 2 , is applied, but with its greatest extent transverse to the direction of passage 10.
  • the transverse sealing seam 101' is also created transverse to the direction of passage 10 as described below.
  • the longitudinal sealing seam 101 ' can also be arranged in the direction of the smaller extension of the product P considered in the plan view.
  • the second obvious difference Figures 5 compared to the Figures 2 is that the individual foil sheets 100 are not placed directly on a format plate 15 with a flat top at the beginning of the process, but in each case a groove-shaped recess 25a, formed here in the top of a separate for each foil sheet 100 format trough 25th
  • the two-sided open channel-shaped recess 25a extends - as the largest extension direction of the product P - also transverse to the direction of passage 10, ie in the horizontal transverse direction 11, so that the format trough 25 is a profile part.
  • the measured in the transverse direction 11 length of the format trough 25 and thus the groove-shaped recess 25a is at most as long as the product P measured in the transverse direction 11, preferably as shown, slightly shorter, so that the product P projects slightly beyond the trough-shaped depression 25a on both sides.
  • the groove-shaped recess 25a has inclined flanks, which diverge from the bottom to the upper end of the groove 25a and occupy an increasingly larger upward distance from one another.
  • the depth of the grooves 25a is at most as large as the height of the product to be inserted P, preferably slightly lower, so that the sealing jaws 19a, b can be moved over the edges of the groove 25a, so here the format tray 25, just above the product.
  • trough-shaped recess 25a are preferably vacuum applied to suction 13 to pull down the flat or already hanging down from above approximated foil sheet 100 against the bottom of the groove 25a, whereby the foil sheet 100 already before placing the product P on the Foil sheet 100 in the groove 25a assumes a transversely about U-shaped contour, which facilitates the further handling of the thus deformed film sheet 100
  • the format trays 25 are formed individually for each sheet of film 100 and in this case are not seated directly on the base body 16 of the carriage 120 but on a format plate resting thereon 15 and are in turn also held there by suckers 13.
  • suckers 13 Neither the holding means in the form of suckers 13 is imperative - both between the format plate 15 and the format pan 25 and between the foil sheet 100 and the groove 25a - but other holding means can be used for this purpose.
  • the format plate 15 and the single panes 25 seated thereon can also be functionally combined, in particular integrally formed, in the form of a format plate, in which the plurality of groove-shaped recesses 25a are incorporated in the upper side, because on a carriage 120 should preferably in the direction of passage 10 in a row several foil sheets 100 are placed and processed into foil bags.
  • groove-shaped recesses 25a are also not bound to the bearing direction of the product P with its greatest direction of extension in the transverse direction 11, but could also in the process sequence according to the Figures 2 be used, in which case the extension direction of the groove-shaped recess 25, ie the profile direction, would lie in the direction of passage 10.
  • sealing jaws 19a, b are again spaced apart from one another in their initial position, in which they occupy a greater distance from one another than the edge regions 100a, b of the not yet sealed foil sheet 100.
  • the resulting film tube 101 is still in the groove-shaped recess 25a of the format tray 25 - as in FIG. 5b1 with the sealing jaws 19a, b still shown in the sealing position and in Figure 5c1 for reasons of clarity already without the sealing jaws - but is on both sides via the groove 25a before with the two-sided projection 101a, b, as in FIG. 5b1 recognizable.
  • the lateral projections 101a, 101b of the film tube 101 are pressed against each other from above and below and sealed by means of above and below on the supernatant 101a, b attacking and approaching each other sealing jaws 19a, b, in the direction of passage 10 over the entire extent of the film tube 101 and also seal in the supernatant 101a, b present, folded-over fin 101c.
  • the sealing jaws 19a, b can pass through several or all of the sealing jaws 19a, b of the carriage 120 and seal them all together.
  • the tubular bag 102 is sealed around the product P and finished as in FIG FIG. 5e1 shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP18193341.7A 2017-09-22 2018-09-10 Procédé et machine de fabrication de sachets en feuille remplis, scellés longitudinalement et transversalement, d'une bande de feuille non conservant la forme Active EP3459867B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017121988.9A DE102017121988B4 (de) 2017-09-22 2017-09-22 Verfahren sowie Maschine zum Herstellen von längs- und quer-gesiegelten, gefüllten Folienbeuteln aus einem nicht-formhaltigen Folien-Bogen

Publications (3)

Publication Number Publication Date
EP3459867A2 true EP3459867A2 (fr) 2019-03-27
EP3459867A3 EP3459867A3 (fr) 2019-05-22
EP3459867B1 EP3459867B1 (fr) 2021-03-24

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EP18193341.7A Active EP3459867B1 (fr) 2017-09-22 2018-09-10 Procédé et machine de fabrication de sachets en feuille remplis, scellés longitudinalement et transversalement, d'une bande de feuille non conservant la forme

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US (1) US11142358B2 (fr)
EP (1) EP3459867B1 (fr)
CN (1) CN109532104B (fr)
DE (1) DE102017121988B4 (fr)
ES (1) ES2881254T3 (fr)

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DE102018008483B3 (de) * 2018-10-30 2020-01-30 Benhil Gmbh Verfahren zum Verpacken von portionierten, im Verarbeitungszustand flüssigen oder pastösen Produkten und Verpackungsmaschine zur Durchführung eines solchen Verfahrens
EP4126676A1 (fr) * 2020-03-31 2023-02-08 Cryovac, LLC Appareil et procédé d'emballage
IT202000012166A1 (it) * 2020-05-25 2021-11-25 Perfect Pack S R L Macchina confezionatrice
KR20230152711A (ko) * 2021-03-09 2023-11-03 쉴로이니게르 아게 케이블 스태커, 케이블 스태커를 포함하는 케이블 처리장치 및 케이블을 안전하게 운반하는 방법

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Also Published As

Publication number Publication date
EP3459867B1 (fr) 2021-03-24
US11142358B2 (en) 2021-10-12
DE102017121988B4 (de) 2019-05-09
CN109532104A (zh) 2019-03-29
CN109532104B (zh) 2021-02-26
DE102017121988A1 (de) 2019-03-28
US20190092508A1 (en) 2019-03-28
EP3459867A3 (fr) 2019-05-22
ES2881254T3 (es) 2021-11-29

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