US20040154271A1 - Device and method for manufacturing reclosable packagings - Google Patents

Device and method for manufacturing reclosable packagings Download PDF

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Publication number
US20040154271A1
US20040154271A1 US10/750,906 US75090604A US2004154271A1 US 20040154271 A1 US20040154271 A1 US 20040154271A1 US 75090604 A US75090604 A US 75090604A US 2004154271 A1 US2004154271 A1 US 2004154271A1
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United States
Prior art keywords
fill
tube
overlap
foil
longitudinal
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.)
Abandoned
Application number
US10/750,906
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English (en)
Inventor
Peter Rietjens
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GEA Food Solutions Weert BV
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Individual
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Filing date
Publication date
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Assigned to CFS WEERT B.V reassignment CFS WEERT B.V ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RIETJENS, PETER WILHELMUS HENRICUS
Publication of US20040154271A1 publication Critical patent/US20040154271A1/en
Abandoned 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • B65B51/06—Applying adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2042—Means for altering the cross-section of the tube filling opening prior to transversal sealing, e.g. tube spreading devices
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/12—Creating additional longitudinal welds on horizontal or vertical form fill seal [FFS] machines for stiffening packages or for creating package edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance

Definitions

  • the invention relates to a device for making bag-shaped packagings from a web of sheet material, such as synthetic foil, for loose products that may or may not be packaged in groups, such as sweets, powdered or granular products, such as ground cheese or flour or viscous products, such as salads. Below products are referred to in general, which therefore may have any given shape or consistency.
  • the invention furthermore relates to such a method.
  • the invention further relates to a reclosable, bag-shaped packaging for said products.
  • the bag is formed from a sheet of foil material and has a front side and a rear side which at the side edges are sealed together. The material of the rear side continues over the upper side and forms an overlap at the front side.
  • the foil material has an outer layer which is of a different synthetic material than the inner layer. At the location of the overlap (that can be engaged by the hand) its inner layer is attached on the outer layer of the front side by means of a severable seal.
  • On the outer layer of the front side a strip of doublesided adhesive tape may be attached, which at the outer side has been provided with a removable protective strip. By removing the protective strip after opening the bag, during which the severable seal is severed, the strip of adhesive tape forms a sealing that can be opened and closed several times.
  • the bag may be provided with an inwardly folded bottom area, in order to offer an increase of filling volume of the bag by unfolding.
  • the filled bag can be put straight up, but then lacks sufficient stability to remain positively standing up, and may topple over. A shopkeeper will therefore be inclined to put the bag down flat on its rear side, and stack the bags, which harms the presentation of the product.
  • the invention provides a form-fill-seal machine for making bag-shaped packagings for products, such as edible products, from a web of foil material, such as synthetic foil, the machine comprising a frame having a stock of web of foil material and a supply of the web of foil material in flat condition, and a form-fill unit positioned at the front side of the machine, wherein the form-fill unit comprises a form shoulder for transforming the flat web of foil material into a foil tube, as well as a form-fill tube connecting to the form shoulder, having a vertical main plane of section, in which the machine furthermore comprises transverse sealing jaws that are positioned below the lower end of the fill tube for forming transverse seals in the foil tube and which are reciprocally moveable in a vertical plane perpendicular to the front side of the machine and the said vertical plane of section, the form shoulder being asymmetrically shaped for forming an overlap in the foil tube which extends to at least a short distance from or near the said vertical plane of section, wherein the machine
  • the machine is furthermore provided with second longitudinal sealing means positioned at a second side, at one lateral side of the form tube, as considered from the front side of the machine, opposite the first side, for forming at least one longitudinal seal in the foil tube.
  • second longitudinal sealing means are provided that are positioned at either side of, preferably equidistanced from, the vertical plane of section. Also the longitudinal sealing means for the other side then allow an easy change of the form-fill unit.
  • the form-fill unit at the second side is provided with two protruding form strips for forming longitudinal folds in the foil tube, wherein the second longitudinal sealing means are positioned for sealing the longitudinal folds.
  • the second longitudinal sealing means may comprise an anvil/form member, that extends between both longitudinal folds for positioning them for sealing.
  • the position of the first and/or second longitudinal sealing means is adjustable in a direction towards/away from the fill tube, so that the cross-section of the fill tube used at a certain moment can be adjusted to.
  • the anvil/form member as well preferably forms an interchangeable part then.
  • the form-fill unit is removably or detachably placed in the machine.
  • the form/fill tube at the first side at the lower end is provided with a first protrusion, situated in or near the vertical plane of section and extending downwards, and which in horizontal direction is free from the remainder of the lower end of the fill tube.
  • the protrusion forms a guide for the tube area at the first side, so that it is narrowed in order to end up crease-free between the transverse sealing jaws.
  • the first protrusion is pen- or lip-shaped and narrow as a result.
  • the first protrusion with its end smoothly extends beyond the profile of the fill tube, so that the narrowing of the tube is enhanced at that location.
  • the form/fill tube at its lower end is furthermore provided with at least one second protrusion, which is at least situated at the second side and defines a recess with the first protrusion.
  • the recess offers a certain room for the shape transformation, whereas the foil tube is guided and held there where such is necessary.
  • the second protrusion forms a sharp guiding edge, as a result of which a self-orienting influence can be exerted on the bottom seal, particularly when the guiding edge is substantially oriented towards the bottom.
  • the sharp edge only takes little space in transverse direction, as a result of which the area within the bottom seal is able to be tautened.
  • two second protrusions are present, which extend on either side of the vertical plane of section and preferably keep an area free between them in which area a fold-maker is allowed to extend. In this way it is achieved that the said bottom area defined by the two bottom seals can be folded in smoothly, prior to the transverse sealing jaws being active on it.
  • the two second protrusions may advantageously be connected to each other by a plate, for instance a V-shaped plate, which is forming a cavity for the inwardly folded bottom area to be made.
  • the form-fill tube may have different cross-sectional shapes, for instance circular.
  • the fill tube has a substantially rectangular cross-section, having the main sides substantially parallel to said vertical plane of section. It is noted that a rectangle also includes a flat cross-section, in which the long sides are buckled or flat bent.
  • the first side of the form-fill tube is bent having a flat surface between bent transitions to the main sides.
  • the machine is furthermore provided with means for applying a strip of doublesided adhesive tape on the web of foil material in the area of the intended overlap.
  • the first longitudinal sealing means are preferably positioned for arranging the severable longitudinal seal at the side of the strip of doublesided adhesive that faces away from the outer longitudinal edge of the overlap.
  • the overlap ends at the first side at at least a short distance from or near the said vertical plane of section.
  • the first longitudinal sealing means are positioned at a short distance from or near the said vertical plane of section.
  • the form-fill unit is detachably arranged on the frame it can easily be replaced by another unit (possibly the original one of the machine), for instance a unit for forming regular, non-reclosable, cushion-shaped bag-shaped packagings only having one longitudinal seal for permanent sealing of the (in that case very short) overlap.
  • the machine may be a standard machine adapted for the latter packagings, in which the transverse sealing jaws are moveable in a vertical plane perpendicular to the front side of the machine. Said standard machine can then simply be temporarily equipped for making the reclosable packagings, without parts, particularly the transverse sealing jaws, having to be rotated.
  • the unit can also be replaced by a unit for comparable reclosable packagings of a larger cross-section.
  • the invention provides a form-fill-seal machine for making bag-shaped packagings for products, such as edible products, from a web of foil material, such as synthetic foil, the machine comprising a frame having a stock of web of foil material and a supply of the web of foil material in flat condition, and having a form-fill unit, the form-fill unit comprising an asymmetrical form shoulder for transforming the flat web of foil material into a foil tube, while forming an overlap, as well as a form-fill tube connecting to the form shoulder, which tube has a substantially rectangular cross-section and which is positioned in the machine having a first main side facing away from the machine and a second main side facing the machine, wherein the form shoulder is designed for forming the overlap at at least the first or second main side, wherein the form-fill unit at a first short side of the form-fill tube is provided with two protruding form strips for forming longitudinal folds in the foil tube, wherein the form-fill unit is furthermore provided with first longitudinal sealing
  • the means for arranging the severable seal may be positioned for arranging the severable seal at the side of the strip of doublesided adhesive facing away from the outer longitudinal edge of the overlap.
  • the second longitudinal sealing means are positioned at the second short side of the form-fill tube.
  • the first short side of the form-fill tube is bent having a flat surface between bent transitions to the main sides.
  • the form-fill unit is detachably arranged on the frame, and/or the first longitudinal sealing means and/or the second longitudinal sealing means are detachably arranged on the frame, for easy adjustment to the desires regarding the shape of the packaging.
  • the invention provides a method for making bag-shaped packagings for products, such as edible products, in a form-fill-seal machine from a web of sheet material, such as synthetic foil, wherein the web of material is supplied in a flat condition to an asymmetrical form shoulder positioned at a front side of the machine and a connecting form/fill tube in order to be transformed there into a tube in which the longitudinal edges form an overlap, wherein the overlap is formed eccentrically with respect to a centre plane of the fill tube, which is perpendicular to the front side, and extends up to a lateral side of the fill tube, wherein the overlap, at a distance from the outer longitudinal edge of the overlap, at said lateral side, is secured onto the tube by arranging a severable, closing seal in longitudinal direction of the tube, after which the tube is filled, sealed closed by means of transverse seals extending perpendicularly to the tube and the centre plane.
  • the foil web is supplied to the form shoulder eccentrically with respect to the centre plane of the fill tube, which is perpendicular to the front side, as a result of which the realisation of the overlap shifted to the lateral side of the fill tube is facilitated.
  • an adhesive strip is applied for forming a closing means for the overlap on the packaging, which closing means can be used several times, preferably on the lower side of the foil web, in an edge area thereof.
  • the adhesive strip is adhered in the overlap at the foil area of the overlap that is situated on the inner side.
  • the tube is furthermore folded in an area at a distance from the overlap, preferably at a second side of the fill tube situated opposite the first side, for forming two fold areas extending in longitudinal direction which between them define a bottom area, wherein the web material at the location of the fold areas is sealed together for forming two bottom longitudinal seals.
  • bottom area is also folded inwards by means of fold makers that are positioned immediately above and immediately below transverse sealing jaws, an inwardly folded bottom can be obtained without the transverse sealing creating creases there.
  • the invention provides a method for making bag-shaped packagings for products, such as edible products, from a web of sheet material, such as synthetic foil, wherein the web of material is transformed from a flat condition into a tube wherein the longitudinal edges form an overlap, wherein the tube at the location of the overlap, at a distance from the outer longitudinal edge of the overlap, is secured onto the tube by arranging a severable closing seal in longitudinal direction of the tube, wherein furthermore at the location of the overlap, in longitudinal direction of the tube, a strip is arranged for forming a closing means for the overlap on the packaging, which closing means can be used several times, wherein the tube furthermore in an area at a distance from the overlap is folded inwards for forming two fold areas extending in longitudinal direction which in between them define a bottom area, wherein the web material at the location of the fold areas is sealed together for forming two bottom longitudinal seals, after which the tube is filled, sealed closed by means of transverse seals extending perpendicularly to the tube
  • the invention provides a packaging for a mass of articles, such as sweets, viscous material, such as salad, wherein the packaging is bag-shaped and manufactured from a web of foil material which from a flat condition has been bent into a tube shape having an overlap and after that in filled condition is cut into (tube) sections for separating the manufactured packaging, wherein the packaging at the cutting edges of the section in question is sealed closed for forming side edges, wherein the packaging has two mains sides and a bottom area, which extends perpendicular to the side edges and forms two bottom edges which between them define an inwardly folded bottom strip and each with a connecting main side of the packaging form a sealed bottom seam, wherein the overlap extends over a first main side and at a distance from its end edge is sealed to said main side by means of a closed but severable seal, and wherein the packaging at the location of the overlap is provided with means that enable repeated opening and closing of the packaging.
  • the bottom longitudinal seals and the transverse seals overlap each other in
  • Such a reclosable packaging is easy in use and prior to and after use can be placed straight up in a stable manner, particularly when presented for sale in a shop. The use of space thus remains limited to the bottom profile.
  • the means that enable repeated opening and closing of the packaging are formed by a strip of doublesided adhesive, preferably provided with a detachable protective strip, in which the strip of adhesive preferably is permanently adhered to the first main side.
  • FIG. 1 shows a schematic front view of a form-fill-seal machine according to the invention
  • FIGS. 1 A-E show respective perspective views of various sides of a form-fill unit for the machine of FIG. 1 and a schematic radial view on it, respectively;
  • FIGS. 2 A-E show some schematic cross-sections at the location of the planes of section IIA-D in FIG. 1E and IIE in FIG. 1D;
  • FIG. 2F shows a schematic horizontal cross-section of an embodiment of the machine according to the invention having a circular fill tube
  • FIGS. 3 A-C show a front view, a cross-section of a packaging according to the invention, however without filling, and a view of a filled packaging according to the invention.
  • the form-fill-seal machine 1 in FIG. 1 comprises a frame 2 , on which the various parts of the machine have been arranged and on which operation and control means that are not further shown are also included.
  • the frame 2 is provided with a stock roll 3 of a web F of foil material, which via a number of free-running circulating rollers 7 is passed upwards to a horizontal track.
  • the foil may for instance be a known multi-layered foil having specifications OPP/OPA/PFP having respective thicknesses of 20/15/50 ⁇ m, available from Amcor, in Gent, Belgium.
  • a stock roll 4 of doublesided adhesive tape 57 has been arranged.
  • the doublesided adhesive tape 57 is provided with a protective sheet 57 c , at the radial inside as considered on the roll.
  • the adhesive tape 57 is passed upwards to end up against the lower side of the web F at the location of the roller 5 .
  • two rollers 5 a , 5 b are arranged, which guide the adhesive strip 57 and the web F, during continuous transport in the direction C.
  • a form-fill unit 10 is removably/replaceably arranged on the frame 2 .
  • two foil drive units 80 are attached, which each comprise a frame 81 and a vacuum belt 82 .
  • the frame 81 forms a unity with a holder 83 which can be attached to two rods 84 attached in the frame 2 (FIG. 1A).
  • the distance between the holders 83 is adjustable with means that are not further shown.
  • sealing station 70 having in absolute sense horizontally, in the direction G, synchronously perpendicular to the front side reciprocally movable transverse sealing jaws 71 a , 71 b.
  • a fill chute 6 is also shown, for receiving small articles to be packaged, such a sweets, from the direction F.
  • the form-fill unit 10 is further shown in the FIGS. 1 A-E and 2 A-D.
  • the form-fill unit 10 has a frame 11 , that can be suspended and attached to the frame 2 of the machine 1 .
  • the frame 11 comprises a bracket 12 which is formed as one unity with the girders 16 , on which a support plate 15 is attached.
  • On the support plate 15 an asymmetrical form shoulder 13 is attached, which will be further discussed.
  • a fill tube 14 extends through the form shoulder 13 , which fill tube 14 at the upper end, spaced apart above the form shoulder 13 , is attached to the upper end of the bracket 12 .
  • Bracket 12 , form shoulder 13 and fill tube 14 form one unity, that can be kept in stock in various embodiments and can be placed in the frame 2 when a certain bag shape has to be made.
  • the girders 16 For attachment in the frame 2 the girders 16 have an inverted U-shape, in order to be able to be placed on placement pins 19 a , which with ends 19 are permanently attached to the frame 2 .
  • the pins 19 a have a length that corresponds to the length of the girders 16 .
  • the ends 19 form a stop for the girders 16 , for correct placement.
  • the tube 14 extends vertically through the body of the form shoulder 13 , in a correspondingly shaped vertical passage 93 thereof.
  • the collar surface 90 of the form shoulder 13 on the one hand slopes downwards with an inclined surface 91 into a narrowing lip 92 , which runs to the left short side of the passage 93 .
  • Said edge 94 is also turned at the corner, running about the lip 92 , and therewith defines a sideward opening 95 through which the edge area of the foil web F, which is to form an overlap, is able to move.
  • the lip 92 extends to near the vertical main plane S.
  • the fill tube 14 is accommodated with play in the passage 93 , which is sufficient for movement of the foil web F, which is then transformed into a tube F′, over the circumferential surface of the tube 14 .
  • the passage 93 is slightly broader, at the opposite short side much broader.
  • the cross-section of the tube is flat rectangular, having a vertical main plane or plane of symmetry S.
  • the one short side forms a flat surface at 44 , which surface via bent corners 46 changes into flat main sides 41 and 42 .
  • the other short side has a flat surface 43 , which in the area immediately below the shoulder 13 is provided with protruding longitudinal strips 45 in the extension of the sides 41 , 42 . Said strips 45 are only short considered in tube direction.
  • two longitudinal sealing stations 19 and 20 are arranged, which, as can be seen in the FIGS. 1 A-E, each comprise a girder 17 , by which means they are attached in the holders 18 , which holders 18 are permanent to the holders 83 , which, as already mentioned, are adjustably attached to the frame 2 .
  • the mutual distance of the longitudinal sealing stations can thus be adjusted with the mutual distance of the belts 82 .
  • the one longitudinal sealing station 19 comprises an upright 21 mounted on a girder 17 , on which girder a holder 22 is attached.
  • pneumatic means that are not further shown are provided, by means of which the sealing head holder 23 attached thereon can be moved in horizontal direction towards the tube 14 and away from it.
  • the sealing head holder 23 holds a longitudinal sealing head 23 a , provided with longitudinal sealing surface 23 b (FIG. 2B).
  • the longitudinal sealing surface 23 b is positioned to cooperate with flat surface 44 , which then serves as counter surface or anvil, immediately adjacent to the plane S.
  • a vertical plate 24 is attached to the rear side of the holder 22 , on which plate a protective cover can be arranged.
  • the other longitudinal sealing station 20 is designed double, and is operative in a direction perpendicular to the direction of the first longitudinal sealing station 19 .
  • an upright 26 is mounted, on which a horizontal mounting plate 31 is attached.
  • a form member 32 is attached, which extends to near the short surface 43 of the tube 14 , while leaving play for the web of foil F′, and at the corners is provided with seal-rubber seal anvils 34 , which are facing sidewards, perpendicular to the normal of the flat surface 44 situated on the other short side.
  • the form member 32 is detachable from the plate 31 by means of screw handles 28 b , in order to be replaced by a form member having another shape or set-up, to be used with another form tube.
  • longitudinal sealing heads 37 a are positioned, which are provided with longitudinal sealing surfaces 37 for cooperation with the said seal anvils 34 .
  • the longitudinal sealing heads 37 a are attached on holders 37 which, in a manner comparable to the one of the holders 22 , are attached on holders 27 , in which pneumatic means that are not shown are included for reciprocally moving the sealing head holders 27 , and thus the sealing heads 37 .
  • the holders 27 are detachably attached on the aforementioned mounting plate 31 , by means of screw handles 28 a .
  • the screw knobs 28 a (twice) and 28 b are always provided in pairs.
  • a vertical plate 29 is attached, on which said protective cover can be arranged.
  • the position of the holders 27 in a direction parallel to the plate 31 is adjustable, see arrows.
  • a pair of vertical guiding plates 30 is also attached on the holder 32 , which are located at the short sides for the sealing heads 37 and are provided with parallel, vertical and flat portions 34 and with run-in strips 33 that converge with respect to each other.
  • the plates 30 are situated at a short distance for the anvils 34 and are provided with a passage (not shown), for the sealing heads 37 .
  • the lower end of the tube 14 is shaped in a particular way, and namely particularly the lower end of the strip 44 , which in the shape of a tapering lip 74 is bent concave and then convex again to the outside, extending beyond the profile of the tube 14 as it is above it.
  • the tube 14 at its lower end is provided with a V-shaped guide 77 (FIG. 2E) oriented to the inside with its bottom, which guide has edges 78 a,b that are placed slightly within the corners of the tube 14 .
  • the guide 77 is covered by a plate 79 .
  • an open space 76 is realised, which in this example, is upwardly limited by horizontal lower edge 75 of the main sides 41 and 42 of the tube 14 .
  • a fold maker 102 a is positioned which is provided with an edge 103 a , which fold maker 102 a is plate-shaped and arranged at the end of a rod 101 a , which is adjustably accommodated in holder 100 a which is permanent to the frame 2 .
  • a comparable fold maker 102 b is positioned, arranged at the end of a pin 101 b , adjustably accommodated in holder 100 b , and provided with a nose 103 b having a run-out edge.
  • the fold maker 102 b is placed at vertical distance X below the fold maker 102 a in order to make movement of the transverse sealing jaws 71 a -b in the direction G in between them possible.
  • the holders 100 a and 100 b are reciprocally movable in a direction parallel to the pins 101 a and 101 b , in register with the motion of the transverse sealing jaws.
  • a foil material in the form of a laminate, having for instance a polythene inner layer that will come to lie at the inner side of the bag and a polypropene outer layer that will come to lie at the outer side of the bag.
  • the foil web is unwound from the stock roll 3 in the direction A, and runs upwards (F) via turn rollers 7 , and then horizontally (C) over the roller 5 where the doublesided adhesive tape 57 is added, which originates from stock roll 4 rotating in the direction B. With the adhesive strip 57 attached at the lower side, the protective sheet 57 c still below, the foil web F runs to form shoulder 13 , and at that location is transformed into a tube shape corresponding to tube 14 .
  • the centre line of the foil web F that is transported in the direction C to the form shoulder 13 here lies staggered over a distance Y with respect to the vertical plane T through the centre of the tube 14 (perpendicular to plane S).
  • the edge area provided with the adhesive strip 57 is brought a considerable distance, as considered in the drawing at the left-hand side, from the plane T, up to the left-hand side of the tube 14 , to near the plane S.
  • the overlap extends further to the main side 41 of the tube 14 , which side faces the front side 8 of the machine 1 .
  • the doublesided adhesive strip 57 is present, its protective sheet 57 c also situated at the outer side, so that at that location no adhesion to the inner surface of the overlap formed is effected.
  • the strips 45 ensure two folds in the foil web F′, for which the material originates from foil material present in the widened area situated there in the passage 93 . Due to the strips 30 and the holder 32 with anvil surfaces 34 , the two folds retain their flat shape.
  • the tubular shape F′ of the foil shown in FIG. 2B is secured by operating the longitudinal sealing stations 19 and 20 , so that the longitudinal sealing head 23 in cooperation with the flat surface 44 , by heat sealing forms a longitudinal seal between the inner surface of the overlap and the outer surface of the foil area situated beneath it, which foil area forms the edge area of the foil web F onto which the adhesive strip 57 has been arranged.
  • the layer of polypropene is sealed to the layer of polythene here, which seal can be severed when opening the packaging to be made. Note that (FIG. 2B) the location of the seal is now situated adjacent to the plane S.
  • the area near the longitudinal seam formed on the flat surface 44 is smoothly urged to the outside by the lip 74 , in which the material of the foil that is necessary to that end is obtained by the recesses 76 .
  • the edges 78 a,b keep the bottom edges 58 a,b in their place and orient them such that they are parallel to the closing plane of the transverse sealing jaws.
  • the fold maker 102 a here extends in the V-space within the guide 77 , in order to form an inwardly folded bottom area, in the bag yet to be made, without creases arising.
  • the V-space is large enough for forming the inwardly folded bottom area.
  • the foil tube F′ is thus pulled slightly flatter in order to thus be engaged without creases by the transverse sealing jaws 71 a , 71 b moved towards each other in the direction G.
  • the transverse sealing jaws 71 a , 71 b in which a cutting means has also been incorporated, here move between the both fold formers 102 a,b and form an upper transverse seal of a previous packaging and a lower transverse seal for the next packaging.
  • the product is introduced through the fill tube into the bag that lies on top and is still in open connection with the foil tube.
  • the cutting means in the transverse sealing jaws 71 a , 71 b is activated, to separate a packaging.
  • this packaging was filled with products that fell downwards in the direction F in the chute 6 and subsequently through the inside of the tube 14 .
  • the plate 79 prevents that material ends up in the bottom areas to be made/made, which would otherwise render the sealing difficult.
  • FIGS. 3 A-C a bag according to FIGS. 3 A-C has been obtained, in which a bag 50 is shown, having a rear side 52 and a front side 51 , in which the front side is attached to the overlap 53 at the upper edge by means of a longitudinal seal 56 in such a manner that it can be manually severed, which overlap is a continuation of the rear side 52 , passing over the upper side 54 of the packaging 50 .
  • the doublesided adhesive strip 57 is positioned, which with the adhesive side 57 b is adhered to the outer layer of the front side 51 and with the other adhesive side 57 a is still covered by protective strip 57 c .
  • Below the adhesive strip 57 hand engagement part 61 is formed, having lower edge 62 .
  • transverse seals 64 formed by means of transverse sealing jaws 71 a,b are shown, which transverse seals, at the location of areas 65 , 66 and 67 , coincide with the seal 56 , the adhesive strip 57 and the bottom seams 58 a , 58 b .
  • areas 65 , 66 and 67 coincide with the seal 56 , the adhesive strip 57 and the bottom seams 58 a , 58 b .
  • areas 68 At the location of areas 68 the double folded bottom area 59 is sealed at its ends.
  • the bag 50 can be placed straight up, that means with the lower edges 60 a , 60 b of the bottom seams 58 a , 58 b on a surface, wherein the overlap 53 is situated at the top, see FIG. 3C.
  • the user takes the edge area 61 of the overlap 53 , to pull it upwards and thus sever the seam 56 .
  • the user can remove the protective strip 57 c and then adhere the overlap 53 to the adhesive layer 57 a on the front side 51 of the bag 50 .
  • the adhesive selected for the adhesive strip 57 is suitable to adhere to both the inner layer and the outer layer.
  • FIG. 2F an alternative fill tube shape 114 is shown, which in this case is circular.
  • the fill tube 114 at the right-hand side may be provided with protrusions such as the aforementioned short protrusions 45 , for preparing the formation of the bottom seal areas.
  • protrusions such as the aforementioned short protrusions 45
  • the sealing head for forming the severable seal is shown, in a position comparable to those of the previous figures, that means having the sealing surface 23 b just adjacent to the plane of symmetry S.
  • the transverse sealing jaws 71 a, b are schematically shown, which in the direction G can be moved towards and away from each other.
  • the transverse sealing jaws 71 a, b are of a standard machine, possibly continuously operative, accommodated therein in a standard manner. They are symmetrical with respect to the plane of symmetry S of the fill tube 114 .
  • the attachment of the longitudinal sealing head 23 is, just like in the embodiment of the previous figures, situated at a lateral side thereof.
  • the foil web F is again supplied eccentrically, having eccentricity Y between centre line U of the foil web F and the tube plane of symmetry T.
  • the eccentric supply of the foil web is possible on standard machines, because the width of the supply rollers 7 and the like leaves room to that end, or its trestle can be moved in transverse direction.
  • the edge area provided with the adhesive strip 57 may extend far to the left about the foil tube 14 , approximately 90° past the plane of symmetry T.
  • the severable closing seam can each time be arranged on the left-hand side near the plane of symmetry S, which is also near the closing surface of the transverse sealing jaws 71 a, b at the side of the overlap.
  • the possible bottom seals can be made at the opposite side.
  • the transverse sealing jaws 71 a , b can thus be maintained, and one can limit oneself to moving the wanted longitudinal sealing heads and the unit of form shoulder/fill tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Saccharide Compounds (AREA)
US10/750,906 2003-01-06 2004-01-05 Device and method for manufacturing reclosable packagings Abandoned US20040154271A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL1022307 2003-01-06
NL1022307 2003-01-06
NL1023151A NL1023151C2 (nl) 2003-01-06 2003-04-11 Inrichting en werkwijze voor het vervaardigen van hersluitbare verpakkingen.
NL1023151 2003-04-11

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US20040154271A1 true US20040154271A1 (en) 2004-08-12

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US10/750,906 Abandoned US20040154271A1 (en) 2003-01-06 2004-01-05 Device and method for manufacturing reclosable packagings

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US (1) US20040154271A1 (de)
EP (1) EP1442980B1 (de)
AT (1) ATE369284T1 (de)
DE (1) DE602004007964T2 (de)
ES (1) ES2291805T3 (de)
NL (1) NL1023151C2 (de)

Cited By (8)

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US20120047852A1 (en) * 2010-04-29 2012-03-01 Illinois Tools Work Inc. Wide mouth gusseted bag with edge seals
US20120198799A1 (en) * 2011-02-04 2012-08-09 Ishida Co., Ltd. Form-fill-seal machine
US20160122061A1 (en) * 2014-10-31 2016-05-05 Radpak Sp z o.o. Pouch forming machine with vertical jaw adjustment mechanism
ITUA20162990A1 (it) * 2016-04-28 2017-10-28 Martini S R L Macchina confezionatrice verticale
US20190152638A1 (en) * 2016-04-28 2019-05-23 Ishida Co., Ltd. Packaging machine
RU205322U1 (ru) * 2020-11-24 2021-07-08 Общество с ограниченной ответственностью «БАРРАКУДА МЕХАНИКС» Устройство термосварки пакетов с запайкой продольного шва внахлёст
RU207591U1 (ru) * 2021-09-09 2021-11-03 Общество с ограниченной ответственностью «БАРРАКУДА МЕХАНИКС» Формирователь трехшовных пакетов
US11230064B2 (en) * 2017-02-28 2022-01-25 Gea Food Solutions Weert B.V. Inspection of a vertical flow-wrapper

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US7523597B2 (en) * 2007-03-20 2009-04-28 J & F Business, Inc. Apparatus and method for mounting a bag former
FR2962717B1 (fr) * 2010-07-13 2013-12-06 Da Silva Simoes Carlos Alberto Rodrigues Dispositif pour fabrication de sachet a soufflet sur ensacheuse verticale
US9840346B2 (en) * 2013-11-01 2017-12-12 Frito-Lay North America, Inc. Method and apparatus for making a structurally resilient package
CN107380560B (zh) * 2017-07-10 2019-08-09 广州市易盈包装材料有限公司 一种包装机
IT201700117793A1 (it) * 2017-10-18 2019-04-18 Mbp Srl Confezionatrice verticale con sistema di saldatura a cartuccia

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US6598367B2 (en) * 1998-01-20 2003-07-29 Ishida Co., Ltd. Device for adjusting position for cutting bags and packaging machine incorporating same

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US4874257A (en) * 1987-01-27 1989-10-17 Nihon Tokkyo Kanri Company Limited Method of forming a closed filled bag, a bag construction and an apparatus for forming the bag
US5279098A (en) * 1990-07-31 1994-01-18 Ishida Scales Mfg. Co., Ltd. Apparatus for and method of transverse sealing for a form-fill-seal packaging machine
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US6598367B2 (en) * 1998-01-20 2003-07-29 Ishida Co., Ltd. Device for adjusting position for cutting bags and packaging machine incorporating same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120047852A1 (en) * 2010-04-29 2012-03-01 Illinois Tools Work Inc. Wide mouth gusseted bag with edge seals
US8784289B2 (en) * 2010-04-29 2014-07-22 Illinois Tool Works Inc. Process of forming a wide mouth gusseted bag with edge seals
US20120198799A1 (en) * 2011-02-04 2012-08-09 Ishida Co., Ltd. Form-fill-seal machine
US8776485B2 (en) * 2011-02-04 2014-07-15 Ishida Co., Ltd. Form-fill-seal machine
US20160122061A1 (en) * 2014-10-31 2016-05-05 Radpak Sp z o.o. Pouch forming machine with vertical jaw adjustment mechanism
ITUA20162990A1 (it) * 2016-04-28 2017-10-28 Martini S R L Macchina confezionatrice verticale
EP3239060A1 (de) * 2016-04-28 2017-11-01 Martini S.r.l. Vertikale verpackungsmaschine
US20190152638A1 (en) * 2016-04-28 2019-05-23 Ishida Co., Ltd. Packaging machine
US10988272B2 (en) * 2016-04-28 2021-04-27 Ishida Co., Ltd. Packaging machine
US11230064B2 (en) * 2017-02-28 2022-01-25 Gea Food Solutions Weert B.V. Inspection of a vertical flow-wrapper
RU205322U1 (ru) * 2020-11-24 2021-07-08 Общество с ограниченной ответственностью «БАРРАКУДА МЕХАНИКС» Устройство термосварки пакетов с запайкой продольного шва внахлёст
RU207591U1 (ru) * 2021-09-09 2021-11-03 Общество с ограниченной ответственностью «БАРРАКУДА МЕХАНИКС» Формирователь трехшовных пакетов

Also Published As

Publication number Publication date
EP1442980A1 (de) 2004-08-04
DE602004007964T2 (de) 2008-04-24
EP1442980B1 (de) 2007-08-08
NL1023151C2 (nl) 2004-07-07
ES2291805T3 (es) 2008-03-01
DE602004007964D1 (de) 2007-09-20
ATE369284T1 (de) 2007-08-15

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