EP1923323B1 - Support pour boîtes, coupe destinée à sa fabrication en carton kraft ainsi que machine d'emballage destinée à la fabrication d'unités d'emballage à partir de ces supports et boîtes - Google Patents

Support pour boîtes, coupe destinée à sa fabrication en carton kraft ainsi que machine d'emballage destinée à la fabrication d'unités d'emballage à partir de ces supports et boîtes Download PDF

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Publication number
EP1923323B1
EP1923323B1 EP07022060A EP07022060A EP1923323B1 EP 1923323 B1 EP1923323 B1 EP 1923323B1 EP 07022060 A EP07022060 A EP 07022060A EP 07022060 A EP07022060 A EP 07022060A EP 1923323 B1 EP1923323 B1 EP 1923323B1
Authority
EP
European Patent Office
Prior art keywords
protective layer
edges
carrier
carrier according
folding
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.)
Not-in-force
Application number
EP07022060A
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German (de)
English (en)
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EP1923323A1 (fr
Inventor
Wolf-Arthur Kalden
Wolfgang Mann
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.)
Wanfried-Druck Kalden GmbH
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Wanfried-Druck Kalden GmbH
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Publication date
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Publication of EP1923323A1 publication Critical patent/EP1923323A1/fr
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Publication of EP1923323B1 publication Critical patent/EP1923323B1/fr
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Classifications

    • 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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/40—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material comprising a plurality of articles held together only partially by packaging elements formed by folding a blank or several blanks
    • B65D71/42—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material comprising a plurality of articles held together only partially by packaging elements formed by folding a blank or several blanks formed by folding a single blank into a single layer element
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0098—Means for preventing dust contacting pouring opening, e.g. a cover over the tear panel

Definitions

  • the invention relates to a carrier and a blank according to the preambles of claims 1 and 23 and a packaging machine according to the preamble of claim 28.
  • Filled and closed beverage cans are often provided with a protective cover at its upper edge, which is usually formed bead-shaped due to a flange. This consists either of an attachable to the edge of the can protective plastic cap od. Like. ( DE 197 04 148 A1 ) or a thin, embossed aluminum foil, which is attached by gluing or even clinging to the upper part of the can ( EP 1 135 304 B1 ).
  • the purpose of these protective covers is to provide the cans with a hygiene protection against contamination, which is removed only immediately before opening the can. Since the drinks in the cans are usually consumed directly from the can and to the edge of the can is touched with the mouth, a much more hygienic removal of the can contents is ensured by the protective cover than in the absence of such a protective cover.
  • the well-known protective covers have in common that they are applied after filling the cans individually on these and removed before use of the cans individually from these and disposed of.
  • the use of plastic caps also changes the appearance of the cans and prevents their packaging in so-called can carriers (eg. EP 1 340 691 A1 . US 2 331 038A ).
  • can carriers eg. EP 1 340 691 A1 . US 2 331 038A .
  • embossed aluminum foils the problem that these must be prepared with elaborate embossing devices and then connected with equally expensive labeling and adhesive applicators with the upper edge of the cans.
  • Packaging machines for the production of packaging units from cans and carriers are also already known (eg. DE-AS 1 214 136 . EP 1 340 691 A1 ).
  • the object of the invention is to provide a protective cover for cans, which can be manufactured with comparatively simple means and attached to the cans and is easier to handle when using the cans.
  • the invention is based on the solution of this problem of a carrier according to the preamble of claim 1, a blank according to the preamble of claim 23 and a packaging machine according to the preamble of claim 28 and consists in the characterizing features of claims 1, 23 and 28.
  • the protective cover is first attached to the can carrier or to the blank intended for its manufacture.
  • the carrier or blanks can be provided by means of comparatively simple and inexpensive process with the protective layer.
  • the connection of the protective layer with the edge of the can when inserting the cans in the can carrier takes place. This makes it possible to put all in one can carrier appropriate cans in a common process step to attach to the protective layer.
  • it is advantageous that the cans are automatically freed from the protective layer when they are removed from the can carrier, since they remain adhering to the carrier at least for the most part due to the avoidance of fiber breakage despite their attachment to the kraft carton.
  • Fig. 1 and 2 show an integral blank 1 for producing a support for cans in the form of a substantially flat, unfolded primitive and in a state as it comes from a corresponding punching device.
  • the blank 1 has a substantially rectangular outer contour, which is formed by two opposite long longitudinal edges 2a, 2b and two substantially perpendicular thereto, shorter transverse edges 3a, 3b.
  • a kraft cardboard with a weight (or a grammage) is used, the z. B. between 300 g / m 2 and 450 g / m 2 , which depends on how many doses per can carrier are provided and what capacity the doses have (eg., 0.5 1 or 1 1).
  • the blank 1 is divided into a plurality of fields and includes according to Fig. 1 in particular a bottom part 4 and a respective left and right lying therefrom first side part 5a, 5b.
  • the blank 1 also has, on the left of the first side part 5a, a second side part 6a and on the right side of the side part 5b another second side part 6b.
  • the blank 1 contains a first cover part 7a on the left of the side part 6a and a second cover part 7b on the right of the side part 6b. All of these parts 4 to 7 have substantially rectangular peripheral contours and are arranged side by side transversely to a longitudinal axis 8 of the blank 1 such that their long sides are substantially parallel and their short sides substantially perpendicular to the longitudinal axis 8.
  • the parts 4 to 7 are separated from each other by imaginary folding lines which are preferably arranged substantially parallel to the longitudinal axis 8 and which are also used for embossing, creasing, creasing-cutting lines already applied during punching in order to facilitate the folding or folding of the various parts explained below The like can exist.
  • imaginary folding lines which are preferably arranged substantially parallel to the longitudinal axis 8 and which are also used for embossing, creasing, creasing-cutting lines already applied during punching in order to facilitate the folding or folding of the various parts explained below The like can exist.
  • a first fold line 9a and 9b between the bottom part 4 and each of the adjacent first side parts 5a and 5b, respectively a first fold line 9a and 9b, between the first and second side parts 5a, 6a and 5b, 6b depending on a second fold line 10a and 10b, between the side part 6a and the first cover part 7a, a third fold line 11 and between the side part 6b and the second ceiling part 7b, a
  • Fig. 1 shows, the bottom part 4 laterally delimiting folding lines 9a and 9b are not continuous like the other fold lines 10 to 12 in the direction of the longitudinal axis 8, but each interrupted by punching produced, the body passing through cutting lines 14a, 14b.
  • These cut lines 14a, 14b are arc-shaped and curved convexly outward with respect to the longitudinal axis 8.
  • the cutting lines 14a, 14b serve, as explained below, for Formation of openings into which edges of cans can latch. They therefore preferably run along curved lines with a radius of the can edges substantially corresponding radius, but extend only each z. B. over a quarter circle corresponding portion of the peripheral edge of the can.
  • the distances of the first fold lines 9a, 9b and the cut lines 14a, 14b are dimensioned from each other according to the respective can size, in particular according to the diameters of the can edges.
  • the number of longitudinally present cut lines 14a, 14b corresponds to the number of cans to be accommodated, which is why the blank after Fig. 1 for producing a can carrier 15 ( Fig. 7 ) is intended for four doses. It follows that the in Fig. 1 Visible underside of the bottom part 1 in the exemplary embodiment four schematically illustrated, laterally limited by the cutting lines 14a, 14b contact surfaces A to D , in the area of which each a can edge comes to rest. Alternatively, it would of course also possible to have more or less contact surfaces for z. B. provide two, three or more than four can edges.
  • the preparation of the can carrier 15 from the blank 1 takes place in the Fig. 3 to 7 apparent way.
  • the cut sections lying left and right of the first fold lines 9a and 9b are folded down or folded down, whereupon the cut sections lying left and right of the second fold lines 10a and 10b are folded upwards.
  • the lower side or a lower surface 16 of the blank 1 the bottom and a in Fig. 2 upper side or an upper surface 17 forms the top of the blank 1.
  • a folding downwards or upwards here is understood to be based on the position in Fig. 2 out down or up.
  • FIGS. 5 and 6 is now z. B. the second cover part 7b folded around the fold line 12 by about 90 ° inwards, placed on the top 17 of the bottom part 4 and connected to a previously applied glue layer firmly with this. Finally, the first cover part 7a is folded around the fold line 11 by about 90 ° inwards ( Fig. 7 ), placed on the upper side of the second ceiling part 7b and fixedly connected thereto by means of a previously applied glue layer.
  • the can carrier 15 ( Fig. 7 ) is now ready for use. It can therefore doses 18 ( Fig. 8 and 9 ) are approached from the back with their upper bead-shaped can edges 18a in advance to the bottom part 4 so that the can edges 18a enter the above-mentioned openings. This is especially in the broken, in Fig. 7 right-lying section of the Fig. 9 seen.
  • one of the arcuate tabs 4b which protrudes outward from the bottom part 4 after the formation of the section line 14b (cf. Fig. 1 . 3 .
  • Fig. 9 shows Fig. 9 in that the can carrier 15 can accommodate four cans 18 in the exemplary embodiment, the can edges 18a each in the region of one of the contact surfaces A to D according to FIG Fig. 1 to come to rest.
  • Can carriers of the type described, their manufacture and their assembly with cans are generally known in many different variants (eg. U.S. Patent 2,331,038 . DE-AS 1 214 136 . EP 0 806 372 A2 . EP 1 340 691 A1 ) and therefore need not be explained in detail.
  • the blank 1 consists of a conventional kraft carton, a first, in Fig. 2 forms with the reference numeral 20 layer.
  • the kraft carton is preferably coated with a usually white layer 21 made by brushing, ie the kraft carton is designed as a cardboard coated on one side.
  • the layer 21 serves the purpose of providing the visible sides of the kraft cardboard material with a painted surface, which allows the application of high-quality printed images by gravure, offset or flexographic printing. Therefore, the layer 21 is in principle only required where the blank 1 od for advertising reasons.
  • To be provided with a printed image. For reasons of production technology, however, it is expedient to punch out the blanks 1 from a continuous single-sided sheet. Since the (mostly brown) top 17 of the blank 1, as Fig. 1 to 7 show is in the finished can carrier 15 inside and is not visible, can be dispensed with the application of a two-sided painted kraft cartons.
  • the coated layer 21 of the blank 1 according to the invention is covered on its free side with a protective layer 22.
  • This protective layer 22 may also be provided only on parts of the entire underside of the blank 1, covered this or the bottom 16 of the Kraftkartons but at least wherever in the assembly of the finished can carrier 15 with cans 18 whose edges 18a are to come to rest or where at the bottom of the can carrier 15 which in Fig. 1 indicated contact surfaces A to D are arranged for the can edges 18a.
  • the protective layer 22 extends substantially only over that portion of the blank 1, which is occupied by the bottom part 4 including the tabs 4a, 4b and the side parts 5a, 5b and therefore for safety's sake up to the fold lines 10a, 10b between the first and second side parts 5a, 6a and 5b, 6b may extend.
  • the protective layer 22 is in Fig. 3 . 5 and 7 hatched, while the layer 21 for simplicity of illustration only in Fig. 2 is shown separately.
  • the protective layer 22 serves the purpose of being firmly connected in the clipped-in state of the cans 18 with the can edges 18a to thereby store these and the lid surfaces of the cans 18 framed by them during the time in which the cans 18 are stored in the can carriers 15 to protect against contamination.
  • the protective layer 22 takes over the important task, in the subsequent removal of the cans 18 from the can carriers 15 to prevent a so-called fiber breakage, d. H. ensure that when removing the cans 18 from the can carrier 15 no paper fibers, residues of the coated layer 21 od. Like. On the edge of the can 18a hang and this thus looks unhygienic and acts.
  • a water-tank varnish is used which at the same time seals the surface of the kraft carton provided with the printed image in such a way that the aforementioned fiber breakage is avoided.
  • a water-based paint has been found, which is offered under the name "WKL G9 / 147-045 GA" on the market. But other water-based paints, which are offered by different manufacturers and at different prices, are useful.
  • the surface of the water-borne paint is coated with an adhesive at least in the region of the contact surfaces A to D for the can edges 18a.
  • An adhesive which has been found to be particularly suitable on the market under the name "Adhesin VN 6349" (for example Henkel & Cie AG, CH-5015 Erlinsbach, Switzerland) has proved to be particularly suitable, and is food safe.
  • the can carrier 15 After the application of the adhesive to the bearing surfaces A to D of the can carrier 15 this is equipped with the cans 18, wherein the can edges 18a are pressed to the curing of the adhesive, preferably with slight pressure against the bearing surfaces A to D. It is a hygiene protection for the can edges 18 a made, which is destroyed only when a can 18 is removed from the can carrier 15. Since the adhesive preferably used is peelable, after removal of the cans 18 no adhesive residues remain hanging on the can edge 18a. Since the water-based paint also prevents fiber breakage, the adhesive can not be detached from the can carrier 18 together with kraft paper fibers or particles from the coated layer 21.
  • a foldable, unilaterally coated kraft cardboard according to Example 1 is coated immediately after the application of the printed image with a protective layer 22 covering the printed image surface of blister paint.
  • a blister varnish is an under the term "Terrawet Blister G 9/414" on the market, heat-sealable product Terra Lacke GmbH, 31275 Lehrte, Germany, used.
  • z. B a heat seal bar from the top of the can carrier 15 and placed under heating to a temperature of, for example, between 80 ° C and 160 ° C for z. B. pressed one to three seconds under low pressure against this.
  • a temperature of, for example, between 80 ° C and 160 ° C for z. B. pressed one to three seconds under low pressure against this.
  • the compound of the layer 22 with the can edges 18a can be done by machine as in Example 1 by appropriate design of a packaging machine and during the production of the can carrier 15.
  • Example 2 The procedure is as in Example 2, but with the difference that the consisting of blister paint protective layer 22 is heated and the can carrier 15 during this process with a pressure of z. B. 3 bar to 6 bar against the can edges 18a is pressed.
  • Particularly suitable OPP films for this purpose are those which are heat-sealable or ultrasonically sealable and, as in Examples 2 and 3, melted for a few seconds by the use of heated pressure beams and thereby firmly connected to the can edges 18a.
  • an ultrasonically vibratable pressure bar can also be used for this purpose.
  • Example 4 The procedure is as in Example 4, but using a KaltsiegelMapmen OPP film.
  • the free surface of the OPP film is preferably coated with a peelable blister paint. Whether this is suitable in Example 2 or any other blister paint must be determined in each case by tests.
  • the compound consisting of the OPP film and the blister paint protective layer 22 with the can edges 18 a takes place here z. B. solely in that a pressure plate from above with a pressure of z. B. 3 bar to 6 bar for a sufficient amount of time on the z. B. in the position after Fig. 9 located can carrier 15 is pressed.
  • connection between the protective layer 22 and the can edges 18a is again peelable using suitable materials.
  • the thickness of the protective layer 22 can be, for example, 10 ⁇ m to 30 ⁇ m, regardless of whether it is produced with a lacquer or a foil.
  • a particular advantage of the invention is that the protective layer serving for hygiene protection 22 is automatically separated from the can edge 18 a by selecting a can 18 from the can carrier 15 and firmly adhering to the can carrier 15 when selecting the right material combinations.
  • the protective layers 22 are always disposed of as a whole together with the can carriers 15 and not individually or piecewise deducted and thrown away, as is true for other known protective covers.
  • there is the significant advantage that after removal of the cans 18 from the can carrier 15 where the can edges 18a have the contact surfaces A to D , a subsequently no longer unrecognizable doable annular impression remains on the protective layer 22, which makes recognizable in that a can 18 has already been fastened to the relevant point. This impression thus indicates the so-called first removal, which has recently been demanded many times in the area of the EU in order to prevent possible abuses.
  • packaging machines consisting of a plurality of cans, in particular cans 18 of the type described, and on these of The above-described carriers, in particular the carriers 15 described above, are known packaging machines (eg. EP 1 340 691 A1 . DE-AS 1 214 136 ), which are supplied at one entrance end, the cans 18 and flat blanks 1 and removed at an outlet end of the finished packaging units.
  • packaging machines eg. EP 1 340 691 A1 . DE-AS 1 214 136
  • Such packaging machines are hitherto only suitable for packaging cans 18 with the aid of blanks which have none of the protective layers 22 described.
  • packaging machines according to the 10 to 15 serve for the processing of blanks 1, which are coated according to the above examples 2 to 5 with protective layers 22 of blister or OPP films, whereas the packaging machine according to Fig. 16 to 18 for the processing of water-based lacquer-coated blanks 1 is used.
  • the packaging machine has a magazine 26 for the blanks 1.
  • a rotatable customer 27 from which the individually removed blanks 1 od by vacuum suction.
  • the like. which are connected to a vacuum pump, not shown, are fed to a feeder 28 such that with the protective layers 22 provided sides of the blanks 1 in Fig. 10 point down.
  • Below this feeder 28 is od from belts, chains.
  • continuous transport device 29 which has certain carriers 30 for transporting the cans 18 and expediently with a device is combined by means of which the cans 18 automatically in a preselected formation, for example, according to Fig. 9 to be grouped together.
  • the blanks 1 and cans 18 are now fed to a folding device, generally designated by the reference numeral 31, and successively aligned with one another in registration, so that each blank 1 is aligned with its surfaces A to D (FIG. Fig. 1 ) exactly on each one of the can edges 18a ( Fig. 8 ) rests on an associated can formation.
  • the folding device 31 contains as first station a pressing mechanism 32 with a 360 ° rotatable pressing bar 33 (FIG. Fig. 10 and 11 ). This has a length which is substantially the same in the transport direction or in the direction of the axis 8 (FIG. Fig. 1 ) measured length of the blanks 1 corresponds.
  • An axis of rotation 34 for the pressure bar 33 is how Fig. 10 and 11 show, perpendicular to the transport direction and perpendicular to the central axes of the cans 18th
  • the Andrückbalken 33 is how Fig. 11 is suspended on a rotatable shaft 35, which via a drive wheel 36 and a drive chain 37 od. Like. From a main drive motor 38 (Fig. Fig. 10 ) is rotated in revolutions, from which all other movable parts of the packaging machine are driven.
  • the pressure bar 33 has the task of applying itself from above to the blank 1 arranged above the can formation and pressing it firmly against the bead-shaped edges 18a of the cans 18.
  • the pressure bar 33 is provided on its underside with laterally arranged folding rails 39, which lie during the pressing operation against the fold lines 10a, 10b of the relevant blank 1 and this accordingly Fig. 1 press down.
  • the pressure bar 33 is preferably guided in its orbit so that it is over a certain distance of z. B. 120 mm to 150 mm at the same speed as the cans 18 is moved in the transport direction.
  • the pressure bar 33 fulfills yet another function. This consists in heating the protective layer 22 of the blank 1 resting on the can edges 18a to thereby melt them and to firmly connect them to the can edges 18a.
  • the pressure bar 33 as Fig. 11 shows, provided with an internal, integral heating element 40, the z. B. from a continuously variable, electric heating cartridge (220 V, 50 Hz) may exist.
  • the protective layer 22 by means of the heating element 40 z. B. for a few seconds to a temperature between z. B. 80 ° C and 160 ° C heated.
  • the same heating can be done by using protective layers 22 consisting of a heat-sealable OPP film (Example 4). If the protective layer 22 finally consists of a cold-sealable OPP film (Example 5), then heating the protective layer 22 to z. B. about 60 ° C.
  • the pressure bar 33 may be formed as an ultrasonic transducer or as an ultrasonic sealing element. This means that it od during the pressing process in the manner of a sonotrode. Like. In ultrasonic vibrations is added and therefore a z. B. off a heat-sealable OPP film (Example 4) prepared protective layer 22 by way of ultrasonic welding for temporary softening brings. Also in this embodiment, the heating element 40 may be missing.
  • the press bar 33 having the station of the folding device 31 is therefore inventively formed simultaneously as a hot or cold sealing station.
  • the blank 1 is held during the Andschreibvorgangs and heating by laterally mounted next to the transport path counter-guides 41, which support the folding process, while the cans 18 are held by side guides 42 on the desired transport path.
  • the can formation provided with the blank 1 first enters a second station of the folding device 31 ( Fig. 12 ), which contains further, held on support rods 43 folding elements 44, which rest on the fold lines 10 a, 10 b of the blank 1 and these in the Fig. 10 apparent situation.
  • this station contains two side guides 45 which gradually grasp, upright and pivot the side parts 6a, 6b and ceiling parts 7a, 7b which are obliquely displaced from the previous station from both sides, and pivot them into a substantially vertical position.
  • a pressure roller or plate 46 acting on the upper side of the blank 1 holds the blank 1 firmly in contact with the can edges 18a, so that they can not come off the protective layer 22 due to a possibly insufficient hardening of the protective layer 22.
  • the finished packaging unit here four cans 14 and a carrier 15 formed from a blank 1 (FIG. Fig. 8 . 9 and 15 ), is finally discharged at the outlet end of the packaging machine, wherein a pressure roller 55 and extended portions of the side guides 45 ensure that the Fig. 7 to 9 apparent form of the packaging unit until complete hardening of the glue and the protective layer 22 is maintained.
  • a packaging machine for processing blanks 1 provided with a protective layer 22 of water-borne enamel (Example 1) is disclosed in U.S. Pat Fig. 16 to 18 shown. It works with regard to the supply of the blanks 1 and cans 18 and the folding of the blanks 1 to the finished carrier 15 preferably the same as the already with reference to the 10 to 15 described packaging machine. Therefore, in Fig. 16 like parts with the same reference numerals as in FIG 10 to 15 provided and those machine parts that follow the Andrückmechanismus 32, in Fig. 16 omitted for simplicity of illustration.
  • the packaging machine follows Fig. 16 to 18 an application station 60 arranged between the feed device 28 for the blanks 1 and the folding device 31.
  • This serves the purpose of the bead-shaped can edges 18a, as in particular in Fig. 17 indicated to be provided with the glue which is required for attaching a water-based paint protective layer 22 to the can edges 18a.
  • the applicator station 60 includes a reservoir 61 for the glue and at least one spray nozzle 62 attached to the underside of the reservoir 61.
  • the glue as in FIG Fig. 17 indicated by arrows are sprayed in fine form when the reservoir 61 is connected by means of a schematically indicated connection nipple 63 to a compressed air source, not shown.
  • the reservoir 61 may be associated with a heater, not shown, to make the glue - if necessary - sufficiently thin for the spraying process.
  • the application station 60 has an application roller 64 (FIG. Fig. 17 and 18 ), whose ends are rotatably mounted in bearings 65 so as to rotate about a perpendicular to the transport direction of the cans 18 extending axis of rotation 66 can.
  • the applicator roll 64 is rotated by means of a positive drive at a peripheral speed corresponding to the transport speed of the cans 18 caused by the transport device 29.
  • the applicator roll 64 thereby serves the purpose of uniformly transferring the glue applied thereto by means of the spray nozzle 62 to the can edges 18.
  • the entire application station 60 is preferably moved vertically up and down by means not shown. This makes it possible to apply the application roller 64 on the one hand during the application of glue with little pressure on the can edges 18a, on the other hand after the completion of the glue order something (eg., 50 mm) to withdraw from the can edges 18a, thereby space for the delivery of an associated blank 1 to create.
  • something eg., 50 mm
  • the application roller 64 preferably consists of a felt roll whose outer surface is tightly covered with a plastic film. This serves the purpose of ensuring, during the application of the glue, that the glue sprayed onto the applicator roll 64 in a thin film is usually applied only to the can edges 18a and not to other areas of the cans 18, in particular not those enclosed by the edges 18a circular surfaces is applied. This and the low pressure of the applicator roll 64 to the can edges 18a is achieved that any unevenness in the area of the can edges 18a are compensated, an always uniform glue application is achieved and can form on the applicator roll 64 no unwanted residues of glue. In addition, the formation of glue drops is avoided, allows easy cleaning of the applicator roll 64 by means of detergents at standstill of the packaging machine and facilitates the replacement of the applicator roll 64.
  • the application of packaging machines after Fig. 16 to 18 takes place analogously to the 10 to 15 .
  • the cans 18 are continuously transported below the application station 16. It is then preferably the entire application station 60 is lowered, to put them on the first box 18 so that the edge 18a is gradually covered with glue according to Example 1.
  • the edges 18a of all the cans of the formation are covered with glue.
  • the application station 60 is preferably raised again somewhat, so that a blank 1 can be fed by means of the feed device 28 and placed in register on these can edges 18a.
  • the can formation in question runs with the applied and glued blank 1 into the first station of the folding device 31, in which the pressure bar 33 is activated in the same manner as described above with reference to FIG 10 to 15 has been described.
  • the only difference is that the existing in Andschreibbalken 33 heating element 40 does not need to be turned on or completely absent, since the Andschreibbalken 32 here only the clipping of the blank 1 effect on the can edges and at the same time the blank 1 in the area A - D ( Fig. 1 ) must press against the can edges 18a so that a hygienic closure of the can edges 18a is ensured, even if applied in the application station 60 glue is not completely dried or cured.
  • An unillustrated second embodiment of the packaging machine according to Fig. 16 to 18 is characterized in that the glue in the application station 16 is not applied to the can edges 18a, but on the underside of the blanks 1 and in particular where the protective layers 22 are located.
  • the application station 60 preferably has at least one spray nozzle, which in Fig. 16 below the path of the supplied by the feeder 28 blanks 1 is arranged and directed upward.
  • the application roller 64 may be missing in this case, since the blanks 1 placed on the cans 18 are already provided with the required hygiene glue in the area of the protective layer 22.
  • the spray nozzle used z. B. an annular shape with a diameter of the can edges 18a corresponding diameter can be given.
  • the invention is not limited to the described embodiments, which can be modified in many ways. This applies first to the basis of the Fig. 1 to 9 described form and manufacture of the can carrier 15, which - as the above-mentioned publications show - can be present in different variants.
  • the invention can also be implemented in can carriers in which the cans 18 can be attached in two or more rows on the can carrier. However, it is recommended that the openings are always formed with as little play or as little larger than the can edges 18a that they do not detach themselves from the protective layer 22 when carrying a packaging unit. Also, the application of the protective layer 22 on the kraft carton and / or their hygienic sealing connection with the can edges 18a can be done in a different manner than that described in Examples 1 to 5.
  • first side parts adjacent to the surfaces A to D to be at least at selected points 67 (FIG. Fig. 8 ) with a preferably food-safe glue and in this way to connect with the edges of the cans 18a adjacent, mostly conical sloping portions of the can walls.
  • the connection between the cans and the carriers could be reinforced if necessary in such a way that even during transport of the finished packaging units z. B. by means of a truck od.
  • the can edges 18 a of the Release protective layer are no danger that the can edges 18 a of the Release protective layer.
  • the protective layer needs to be mounted 22 in principle only in the region of the bearing surfaces A to D, which can also be formed only from those portions of the bottom part 4, where the can rims come to lie 18a.
  • the term "cans" in the context of the present invention means all containers intended in particular for the ingestion of beverages and foodstuffs which, as explained above, are suitable for being packed in the carrier 15 or a similar carrier ,
  • materials other than those described above may be used to make the protective layer 22 and bond it to the can edges 18a, preferably all food-safe materials should be used.
  • the parts of the can carrier 15 provided subsequent to the first side parts 5a, 5b can be made largely arbitrary because the parts of the can carrier 15 which are essential for the invention are the bottom part 4 and the first side parts 5a, 5b.
  • the packaging machines can be designed differently than described within wide limits, especially when blanks 1 are used, the ceiling parts not by gluing and thus non-positively, but z. B. analogous to DE-AS 1 214 136 be connected by latching tongues and thus largely form-fitting.
  • the packaging machines described can be designed as universal machines, by moving both with a heating element 40 after Fig. 11 as well as being provided with an application station 60 for glue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)

Claims (36)

  1. Support en carton kraft pour des récipients (18) qui sont pourvus à leurs extrémités supérieures de bords (18a) en forme de bourrelets, avec une partie de fond (4) qui est délimitée sur les côtés par des lignes de pliage (9a, 9b) disposées parallèlement entre elles et qui est pourvue, sur une face inférieure (16), de surfaces d'application (A à D) pour les bords (18a), et avec des parties latérales (5a, 5b) partant des lignes de pliage (9a, 9b) et repliées vers le bas, sachant que les lignes de pliage (9a, 9b) possèdent une distance mutuelle dimensionnée conformément aux sections des bords (18a) et sachant que des ouvertures (19) du genre fentes sont prévues dans la région des lignes de pliage (9a, 9b), ouvertures dans lesquelles les bords (18a) peuvent s'enclencher élastiquement lors de l'application contre les surfaces d'application (A à D), caractérisé en ce que la partie de fond (4) est pourvue, au moins dans la région des surfaces d'application (A à D), d'une couche de protection (22) évitant la cassure des fibres et pouvant être reliée aux bords (18a) par collage ou par soudage.
  2. Support selon la revendication 1, caractérisé en ce que le carton kraft est constitué d'un matériau couché au moins dans la région des surfaces d'application (A à D).
  3. Support selon la revendication 1 ou 2, caractérisé en ce que la couche de protection (22) est réalisée avec un vernis à émulsion.
  4. Support selon la revendication 1 ou 2, caractérisé en ce que la couche de protection (22) est réalisée avec un vernis blister.
  5. Support selon la revendication 1 ou 2, caractérisé en ce que la couche de protection (22) est constituée d'un film de polypropylène orienté (film OPP).
  6. Support selon la revendication 5, caractérisé en ce que la couche de protection (22) est constituée d'un film OPP thermosoudable.
  7. Support selon la revendication 5, caractérisé en ce que la couche de protection (22) est constituée d'un film OPP soudable à froid.
  8. Support selon la revendication 7, caractérisé en ce que le film OPP soudable à froid est revêtu d'une couche de vernis blister pelable.
  9. Support selon l'une des revendications 1 à 8, caractérisé en ce que le carton kraft est couché sur toute la surface sur la face présentant les surfaces d'application (A à D).
  10. Support selon la revendication 9, caractérisé en ce que le carton kraft est revêtu sur toute la surface de la couche de protection (22) sur la face présentant les surfaces d'application (A à D).
  11. Support selon l'une des revendications 1 à 10, caractérisé en ce que la couche de protection (22) est réalisée en un matériau pelable.
  12. Support selon l'une des revendications 1 à 11, caractérisé en ce qu'il est pourvu d'une impression entre la partie de surface couchée et la couche de protection (22).
  13. Support selon l'une des revendications 1 à 12, caractérisé en ce qu'il peut être réuni avec une pluralité de récipients (18) en une unité d'emballage, sachant que les bords (18a) peuvent être appliqués contre les surfaces d'application (A à D) et peuvent être fixement reliés à la couche de protection (22) par collage ou soudage.
  14. Support selon la revendication 13, caractérisé en ce que la couche de protection (22) est constituée d'un vernis à émulsion, et les bords (18a) peuvent être fixés sur la couche de protection (22) au moyen d'un produit adhésif.
  15. Support selon la revendication 14, caractérisé en ce que le produit adhésif est apte au contact alimentaire.
  16. Support selon la revendication 14 ou 15, caractérisé en ce que le produit adhésif est pelable.
  17. Support selon la revendication 13, caractérisé en ce que la couche de protection (22) est constituée d'un vernis blister, et les bords (18a) peuvent être reliés à la couche de protection (22) par thermosoudage.
  18. Support selon la revendication 13, caractérisé en ce que la couche de protection (22) est constituée d'un film OPP thermosoudable relié par contrecollage au carton kraft, et les bords (18a) peuvent être reliés au film OPP par thermosoudage ou par soudage aux ultrasons.
  19. Support selon la revendication 13, caractérisé en ce que la couche de protection (22) est constituée d'un film OPP soudable à froid, relié par contrecollage au carton kraft et éventuellement revêtu d'un vernis blister, et les bords (18a) peuvent être reliés à la couche de protection (22) par soudage à froid.
  20. Support selon l'une des revendications 1 à 19, caractérisé en ce que les parties latérales (5a, 5b) sont reliées, au niveau de lignes de pliage inférieures (10a, 10b) distantes de la partie de fond (4), à des parties latérales supplémentaires (6a, 6b) se dressant vers le haut, et au moins une des parties latérales (6a, 6b) est reliée, au niveau d'une ligne de pliage supérieure (11, 12), à une partie de recouvrement (7a, 7b) s'étendant parallèlement à la partie de fond (4) et fixement reliée à une face supérieure de la partie de fond (4).
  21. Support selon la revendication 20, caractérisé en ce que la partie de recouvrement (7a, 7b) est reliée par collage à la partie de fond (4).
  22. Support selon l'une des revendications 13 à 21, caractérisé en ce que les bords (18a) peuvent être reliés à la couche de protection (22) de telle sorte que, lorsqu'on enlève un récipient (18), une empreinte irréversible du bord (18a) de ce récipient (18), indiquant le premier enlèvement, reste présente sur la couche de protection (22).
  23. Découpe en carton kraft pour fabriquer un support (15) pour des récipients (18) qui sont pourvus à leurs extrémités supérieures de bords (18a) en forme de bourrelets, comprenant un élément de base d'un seul tenant, essentiellement rectangulaire, reposant à plat non plié, avec une face supérieure (17), une face inférieure (16), une partie de fond centrale (4) qui présente sur la face inférieure (16) des surfaces d'application (A à D) pour les bords (18a), et au moins deux premières parties latérales (5a, 5b), reliées à la partie de fond (4) le long de lignes de pliage (9a, 9b), sachant que les lignes de pliage (9a, 9b) possèdent une distance mutuelle dimensionnée conformément aux sections des bords (18a) et sont interrompues par des lignes de coupe (14a, 14b) de telle sorte que celles-ci forment, lors du pliage des parties latérales (5a, 5b) s'effectuant le long des lignes de pliage (9a, 9b) et en direction de la face inférieure, des ouvertures (19) du genre fentes destinées à l'enclenchement par clipsage des bords (18a), caractérisée en ce que la partie de fond (4) est pourvue, au moins dans la région des surfaces d'application (A à D), d'une couche de protection (22) évitant la cassure des fibres et pouvant être reliée aux bords (18a) par collage ou par soudage.
  24. Découpe selon la revendication 23, caractérisée en ce que le carton kraft est constitué d'un matériau au moins partiellement couché dans la région des surfaces d'application (A à D).
  25. Découpe selon la revendication 23 ou 24, caractérisée en ce qu'elle est constituée d'un carton kraft couché sur toute sa face inférieure.
  26. Découpe selon l'une des revendications 23 à 25, caractérisée en ce que la couche de protection (22) est réalisée selon l'une des revendications 3 à 8 et 10 ou 11.
  27. Découpe selon l'une des revendications 23 à 26, caractérisée en ce qu'elle est pourvue d'une impression entre la partie de surface couchée et la couche de protection (22).
  28. Machine d'emballage pour la fabrication automatique d'unités d'emballage constituées d'une pluralité de récipients (18) ayant des bords supérieurs (18a) en forme de bourrelets et de supports (15) enfoncés par le dessus sur ces récipients, supports qui sont pourvus d'ouvertures (19) en forme de fentes destinées à l'enclenchement par clipsage des bords (18a) en forme de bourrelets, la machine comprenant: un dispositif de pliage (31), un équipement (29) pour transporter les récipients (18) à travers le dispositif de pliage (31) en au moins une formation sélectionnée, et un équipement (28) d'alimentation en découpes plates pliables (1) destinées à la réalisation des supports (15), découpes qui sont pourvues de lignes de coupe (14a, 14b) destinées à former les ouvertures (19) en forme de fentes, sachant que le dispositif de pliage (31) présente des organes de pliage (39, 41, 44, 45, 49, 53) pour plier les découpes (1) en formant les supports achevés (15), et un mécanisme de pression (32), pourvu d'une barre de pression (33), pour presser les découpes (1) contre les bords (18a) en forme de bourrelets, de telle sorte que ces derniers pénètrent dans les ouvertures (19) en forme de fentes formées par pliage et relient ainsi fixement le support (15) aux récipients (18), caractérisée en ce qu'elle est conçue pour traiter des découpes (1) selon une ou plusieurs des revendications 23 à 25, et elle présente des moyens pour la fixation hygiéniquement étanche de la couche de protection (22) sur les bords (18a) en forme de bourrelets.
  29. Machine d'emballage selon la revendication 28, caractérisée en ce que lesdits moyens comprennent un élément chauffant (40) intégré dans la barre de pression (33).
  30. Machine d'emballage selon la revendication 28, caractérisée en ce que la barre de pression (33) est conçue comme élément de soudage aux ultrasons pouvant être mis en vibration.
  31. Machine d'emballage selon la revendication 28, caractérisée en ce que lesdits moyens comprennent un poste d'application (60), disposé entre l'équipement d'alimentation (28) et le dispositif de pliage (31), pour appliquer sur les bords (18a) et/ou sur la découpe (1) une colle destinée à relier la couche de protection (22) aux bords (18a) en forme de bourrelets.
  32. Machine d'emballage selon la revendication 31, caractérisée en ce que le poste d'application (60) présente un dispositif de pulvérisation (61, 62, 63) pour appliquer la colle.
  33. Machine d'emballage selon la revendication 31 ou 32, caractérisée en ce qu'il est prévu une colle dont les propriétés de pulvérisation sont réglables par la chaleur.
  34. Machine d'emballage selon l'une des revendications 32 ou 33, caractérisée en ce que le poste d'application (60) présente un cylindre applicateur rotatif (64), destiné à appliquer la colle sur les bords (18a) en forme de bourrelets, qui est disposé entre le dispositif de pulvérisation (61, 62, 63) et les récipients (18) et qui transfère sur les bords (18a) la colle délivrée par le dispositif de pulvérisation (61, 62, 63).
  35. Machine d'emballage selon la revendication 34, caractérisée en ce que le cylindre applicateur (64) est un rouleau de feutre enrobé d'un film de matière plastique.
  36. Machine d'emballage selon l'une des revendications 32 à 35, caractérisée en ce que le dispositif de pulvérisation (61, 62, 63) est pourvu de moyens pour pulvériser la colle sur la couche de protection (22).
EP07022060A 2006-11-15 2007-11-14 Support pour boîtes, coupe destinée à sa fabrication en carton kraft ainsi que machine d'emballage destinée à la fabrication d'unités d'emballage à partir de ces supports et boîtes Not-in-force EP1923323B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006017571U DE202006017571U1 (de) 2006-11-15 2006-11-15 Träger und zu dessen Herstellung bestimmter Zuschnitt aus Kraftkarton für Dosen

Publications (2)

Publication Number Publication Date
EP1923323A1 EP1923323A1 (fr) 2008-05-21
EP1923323B1 true EP1923323B1 (fr) 2010-03-03

Family

ID=37853229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07022060A Not-in-force EP1923323B1 (fr) 2006-11-15 2007-11-14 Support pour boîtes, coupe destinée à sa fabrication en carton kraft ainsi que machine d'emballage destinée à la fabrication d'unités d'emballage à partir de ces supports et boîtes

Country Status (5)

Country Link
EP (1) EP1923323B1 (fr)
AT (1) ATE459547T1 (fr)
DE (2) DE202006017571U1 (fr)
ES (1) ES2342430T3 (fr)
PT (1) PT1923323E (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006017571U1 (de) * 2006-11-15 2007-03-01 Wanfried-Druck Kalden Gmbh Träger und zu dessen Herstellung bestimmter Zuschnitt aus Kraftkarton für Dosen
WO2012007496A1 (fr) * 2010-07-14 2012-01-19 Crown Packaging Technology, Inc. Couvercle de canette - disque doté de fentes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331038A (en) 1941-04-30 1943-10-05 Reginald B Meller Merchandise holder
DE1214136B (de) 1962-05-31 1966-04-07 Continental Can Co Maschine zum selbsttaetigen Abteilen und Verpacken einer Gruppe von in geschlossener Reihe zugefuehrten Blechdosen mit oberer Randwulst oder aehnlicher Gegenstaende
US3527345A (en) * 1969-02-10 1970-09-08 Anthony J Iorio Portable package for containers
GB9609767D0 (en) 1996-05-10 1996-07-17 Riverwood Int Corp Retaining device for a plurality of containers
DE19704148A1 (de) 1997-02-04 1998-08-13 Yoshikazu Takayama Dose mit Verschluß
US5791464A (en) * 1997-03-17 1998-08-11 Galbierz; Jerome Joseph Cover for containers in multipack carriers
BR0007175B1 (pt) 1999-09-30 2011-08-23 lata de bebida com uma cobertura de proteção, processo e dispositivo para a colocação de uma cobertura de proteção e recorte para uma cobertura de proteção para latas de bebida.
DE20203017U1 (de) 2002-02-26 2003-02-27 Wanfried Druck Kalden Gmbh Verpackungskörper zur Aufnahme von Dosen oder dosenähnlichen Behältnissen
DE202006017571U1 (de) * 2006-11-15 2007-03-01 Wanfried-Druck Kalden Gmbh Träger und zu dessen Herstellung bestimmter Zuschnitt aus Kraftkarton für Dosen

Also Published As

Publication number Publication date
DE502007002987D1 (de) 2010-04-15
EP1923323A1 (fr) 2008-05-21
DE202006017571U1 (de) 2007-03-01
ATE459547T1 (de) 2010-03-15
ES2342430T3 (es) 2010-07-06
PT1923323E (pt) 2010-06-02

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