EP2738105B1 - Method and machine for assembling rigid tubular bodies made of cardboard material with a sealing structure - Google Patents

Method and machine for assembling rigid tubular bodies made of cardboard material with a sealing structure Download PDF

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Publication number
EP2738105B1
EP2738105B1 EP13194547.9A EP13194547A EP2738105B1 EP 2738105 B1 EP2738105 B1 EP 2738105B1 EP 13194547 A EP13194547 A EP 13194547A EP 2738105 B1 EP2738105 B1 EP 2738105B1
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EP
European Patent Office
Prior art keywords
sealing
strip
tool
structures
finishing
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EP13194547.9A
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German (de)
French (fr)
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EP2738105A1 (en
Inventor
Guillaume Sireix
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/592—Shaping sheet material under pressure using punches or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/0018—Multiple-step processes for making flat articles ; Making flat articles the articles being pull-tap closure discs for bottles, jars or like containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/0043—Multiple-step processes for making flat articles ; Making flat articles the articles being box parts not otherwise provided for
    • B31D1/005—Multiple-step processes for making flat articles ; Making flat articles the articles being box parts not otherwise provided for making bottoms or caps
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2821—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers applying plugs or threadless stoppers
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/285—Securing closures on containers by deformation of the closure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/001—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs made from laminated webs, e.g. including laminating the webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/005—Making rigid or semi-rigid containers, e.g. boxes or cartons involving a particular layout of the machinery or relative arrangement of its subunits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/022—Holders for feeding or positioning blanks or webs
    • B31B50/024—Rotating holders, e.g. star wheels, drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B31B50/30—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • B31B50/442—Folding sheets, blanks or webs by plungers moving through folding dies having several cooperating plungers and dies fitted on a rotating table or on moving chains

Definitions

  • the present invention relates to the field of tubular cardboard packaging, comprising a rigid tubular body made of cardboard material, a bottom and / or a cover also made of cardboard material, assembled to the tubular body, intended to contain solid products. in divided forms, such as powders, grains, granules, fibers, chips, etc. or products in liquid form or in pasty form.
  • the tubular packaging concerned is both packaging of circular section and tubular packaging of non-circular section, for example packaging of rectangular or oval section.
  • the present invention also relates to a machine for implementing the above method.
  • the French patent published under No FR 2 716 408 describes the manufacture of a tubular package of the above type.
  • the sealing structure is formed by a cardboard cover made of cellulosic material and a safety membrane made of cellulosic material coated with a barrier material.
  • These two parts are formed one after the other, in the form of cylindrical bowls by a shape punch through an external die and engaged in one end of the tubular body.
  • the side walls of the two parts are tightly assembled with the internal wall of the tubular body.
  • the wall of the tubular body is precut along a peripheral line located between the areas of assembly of the two parts, so as to allow the opening of the cardboard cover without tearing off the safety membrane.
  • the patent application US 2005/034819 describes a machine for manufacturing conical cups, the bodies being produced one by one in a first unit and then fed one by one to an assembly plate, while the bottoms of the cups are fed two by two to this assembly plate. Therefore, the rate of the fund supply device can be halved compared to the rate of the body manufacturing unit.
  • the patent application FR 2 060 078 also describes a machine for the production of plastic buckets, the bodies being produced one by one in a first unit and then supplied one by one to an assembly tray, the bottoms of the buckets also being fed one by one to this assembly tray, and the assembled buckets being transferred one by one to a finishing station.
  • the finishing station is equipped with triple or double tools, which has the effect of lowering the rate of rotation of this station by as much as compared to the rate of the upstream units.
  • the method is clocked step by step, and the advance of the bands by one step, a sequence of assembly of the materials into bands and a sequence of cutting two sealing structures in the composite strip are slaved to the introduction of a pair of sealing structures in the forming tool.
  • the skeleton of the composite strip is stretched by traction means.
  • the flat cut out in the left part and the flat cut out in the right part of the composite strip during the same cutting operation are longitudinally offset.
  • the skeleton of the composite strip is separated into its components downstream of said traction means.
  • N 8.
  • the machine can be produced with only a sealing unit, if one does not want to make a finishing operation on the box, in particular in the case where the method relates to the placing of the bottoms on bodies tubular.
  • a so-called double finishing tool is a cover precut tool.
  • the finishing unit comprises a double hemming tool.
  • the finishing unit comprises at least one double stacking tool.
  • it comprises a unit for making two by two of obturating structures in the form of flat surfaces comprising a central part of shape conjugate to the shape of the opening of the tubular bodies, surrounded by a peripheral part. foldable sufficient to assemble a sealing structure with the internal side wall of a tubular body, operating in step-by-step mode, and slaved to the introduction of a pair of sealing structures in two forming tools.
  • said confection unit comprises a skeleton extractor device for tape and in particular a device for separating the skeleton of tape into its components.
  • the embodiment described below is a machine assembling tubular bodies of round section with round covers to form packages having a safety membrane.
  • a person skilled in the art is able to adapt the characteristics thereof to produce embodiments treating tubular bodies of parallelepipedic, oblong, ovoid sections, or other forms as well as embodiments implementing other types of sealing structures. It can also be observed that the bodies can be treated horizontally or vertically depending on the machine configuration chosen.
  • the sealing unit 2 seals the sealing structures, that is to say covers, in rigid tubes arriving from a machine for manufacturing tubular bodies via a supply device 5.
  • the bodies are introduced two by two in a turntable 3 with eight stations 4, each station being composed of two forming and sealing tools 7.
  • the bodies are introduced into each tool 7.
  • This tray 3 rotates discontinuously and clocked via an indexer with 8 stops.
  • the covers in the form of flat areas previously cut from a strip, as described below, are transferred into the sealing tools 7 by an introduction device 6. These covers are then formed through a matrix 8 creating a vertical skirt , then inserted into a tubular body by a sealing pad 9.
  • Finisher 10 completes the cardboard cover of the box.
  • the tubular bodies with the sealed obturating structures are introduced into a rotating plate 11 with eight stations 12. This plate rotates discontinuously and clocked via an indexer with eight stops. Each station is made up of two finishing modules. 13.
  • the tubular bodies are introduced two by two into each finisher. At one or more stages of a station 12, the two boxes being finished are presented to a double finishing tool 14 which performs a specific operation simultaneously on each of the two boxes. Up to eight finishing operations are possible, for example a pre-cut to facilitate opening, hemming, or stacking.
  • the boxes are then ejected on a conveyor 30 two by two. This conveyor leads to the palletizing of the boxes.
  • a garment unit 15 illustrated as a whole by the figure 2 , makes the covers flat by assembling a strip of cellulosic material 16, generally cardboard, most often printed, but not always, and a strip of membrane 17, which can have a complex structure.
  • Two by two flat covers are made using a 2-track printed cardboard reel. This results in a cost saving on the material of the covers of the order of 10 to 15% compared to a printed single coil since the printed mother coils with two tracks are less overlapped.
  • the printed strip has a constant pitch marked by spots 18, because the printing of the covers is aligned with respect to the spots.
  • This strip is towed by several strip advance devices 19 with motorized rollers which are slaved to each reading of a spot by a reader 20.
  • This device also pulls the membrane strip 17 which is then synchronized with the advance of the cover. Operations are performed at each stop on the strip of cellulosic materials 16, the membrane strip 17 and the composite strip 21 which results from their assembly in an assembly device 22, an embodiment of which is described below.
  • This strip then passes through a cutting station to be cut into lids.
  • this confection unit can carry out multiple operations on cardboard or other strips, and this in an easy way since they are made flat. It is thus possible to produce cardboard dusting grids from a cardboard membrane, to add impressions on both sides of a strip, to have additional components on a cover such as a pouring spout, a cap, etc.
  • Upstream of the assembly operations not illustrated in the figures could be carried out on the membrane strip, which may be a simple or complex film, a strip of simple or complex cardboard. These operations can for example be: cutting and turning a tongue, holes for a sprinkling grid, closed or not, adding a printed document, placing a pouring spout or a plastic cap, ... Such operations are also possible on the cover strip. The advance of the two bands being synchronized, the precision of the operations is ensured.
  • the steps are either determined by printed spots or by the tape feed itself via an encoder.
  • the cutting of the composite strip into individual covers is illustrated by the figure 5 .
  • Advancing a cover to a first sealing station 4 leads to a request for an assembly sequence for a pitch of cardboard strip 16 with a membrane.
  • the time interval between the manufacture of the structure of the flat cover and the forming of the cover in the sealing unit can be controlled. This is advantageous for the lid forming / sealing step, since the adhesive bonding the membrane to the lid does not have enough time to completely dry.
  • the membrane can slide relative to the cover. This allows on the one hand to eliminate the presence of air between the cover and the membrane and on the other hand, to limit the forming constraints on the materials. Indeed, if there was too much air between the cover and the membrane, the temperature of the sealing pads would expand the air present between the cover and the membrane so that at the exit of the machine, the cover would be inflated and the box does not comply with the specifications.
  • the limitation of the forming constraints between the cover and the membrane also makes it possible to limit the presence of folds, capable of causing non-sealing of the seal and of limiting the stretching and therefore the embrittlement, even the rupture, of complex films of PE type, OPP, PET, aluminum ... forming the packaging barrier against humidity, air.
  • the limitation of the forming constraints also limits the deformation of a possible tongue and of its cutout situated on the vertical part of the skirt after the forming of the cover.
  • connection of the assembly device to the station for cutting the covers includes a soft strand 23.
  • the composite strip produced can then be continuous and without tension between the assembly and the cutting of the cover, the two stations are mechanically independent.
  • the control of the glue drying is controlled by several factors. These factors are the adhesive setting time, the water-based adhesives having drying times between 20 seconds and three minutes, the distance between the cover / membrane bonding station and the speed of the machine. In the event of prolonged machine shutdown, the covers between the gluing station and the forming can be purged automatically or manually.
  • the composite 21 is manufactured directly on the machine, therefore no storage of the finished product, consumption on demand therefore no waste, no special machine to do this work, therefore, overall, a cost saving.
  • This method of making two-component covers is also usable for the manufacture of bottoms. Indeed, for economic or technical reasons, it may be wise to make a lamination of cardboard and barrier / sealant materials for a fund using the same method. A background can then be created online with various materials. We then take advantage of the advantage of the limitation of mechanical stresses described above to improve the tightness of the boxes.
  • the cardboard strip 16 is towed by a device for motorized rollers advancing the strip 19.
  • This device drives both the cardboard strip 16 and that of the membrane 17.
  • the two strips are then synchronized in advanced.
  • the embodiment illustrated by figure 3 is executed in several stages.
  • the first step optional, consists in making a relief 24 of the cardboard strip by a pneumatic, hydraulic or electric press.
  • the central part remains flat, but the glue deposit area is slightly raised. Thus, when the adhesive film is deposited, it is located above the central part.
  • the glue will not rub the membrane and spread out towards the center.
  • a film of glue 0.2 to 0.5 mm thick is deposited on the inner part of the cover / cardboard strip opposite the printing by two impressions 25, one for each track of the strip, via a translational movement passing the impressions 25 of a glue tank 26 until contact with the cardboard strip.
  • This movement is ensured by an electric, hydraulic pneumatic cylinder or by the transformation of a rotational movement, connecting rod / crank for example.
  • Each impression then returns to the glue tank to refill with glue.
  • the shape of the adhesive film thus deposited is the same as the impression.
  • the shape of the imprint is a ring with diameters respectively slightly greater than the inside diameter of the box and slightly greater than the diameter of the lid cutout.
  • the installation of the adhesive must be carried out with great precision. On the one hand so that the membrane and the cover remain perfectly bonded during cutting, on the other hand so that the glue does not disperse towards the inside of the cover.
  • the glue must also be present on the outside of the cover cutout to bond the membrane strip to the cover strip of the cutout skeleton, to facilitate the operation of the skeleton extraction device.
  • it is also necessary to prevent the glue from dispersing too much towards the outside of the strip. Indeed, the width of the strip being optimized to limit costs, the distance between the adhesive and the ends of the strips is very small.
  • the adhesive were to overflow on the sides of the composite cover / membrane, the elements in contact with the composite strip would be quickly polluted by the adhesive (tape advance for bonding, cutting, extraction as well as the guide elements, die cutting die and forming / sealing tool). This can cause production stoppages as well as user complaints
  • a cover / membrane composite is created.
  • a very fine punch 27 firstly insulates the inner part of the lid to a diameter slightly less than the diameter of the adhesive imprint by pressing on the lid and membrane strips.
  • Another punch 28 then plays the same role for the outer part of the cover with a diameter slightly greater than the diameter of the adhesive imprint.
  • a presser 29 located between the two punches 27, 28 can then compress the glue to bond the two strips. The glue spreads only between the two punches.
  • gluing For good management of the gluing cycle, gluing must be followed by a step forward of the strip, the presser being arranged one step after the glue has been removed.
  • the adhesive In the event of production stoppage, the adhesive cannot therefore dry on the cardboard strip and thus make the connection between the cover and the membrane impossible or add an additional thickness to the cover / membrane composite constituted by a film of adhesive not yet compressed by the presser and therefore in relief. This ensures on-demand and online production of the cover / membrane sealing structures.
  • This gluing process is applicable to making funds.
  • the step of highlighting the cover is not necessary since there will be no separation of the complex a posteriori.
  • the advance is no longer stopped by reading a printed spot, but by a step-by-step advance.
  • This hole relates to the positioning of the strip on the garment unit with respect to gluing and other operations.
  • This hole is then used as a spot to control the stop of the cutting strip advance. It is then possible to use non-printed and therefore cheaper cartons while having the function of separating the cover / bottom unit posts and cutting the cover / bottom.
  • This belt advance device illustrated by the figure 4 uses a mechanism composed of two drive rollers of the same diameter.
  • a servomotor 34 actuates one of the two rollers 31, the non-motorized roller 32 is driven by the motorized roller 31 via a pinion 33 or a belt.
  • the two rollers are then driven in perfectly synchronized manner which improves the precision of each advance, in particular when the advance is stopped on the printed spot. This precision makes it possible to perfectly respect the centering of the strips relative to the spots during the various operations carried out on a cover, a membrane or a bottom.
  • the objective is to use a printed cover strip with double tracks, optimized in width and in pitch, thus limiting the amount of material not directly used in the manufacture of the packaging.
  • This cutting step is imposed by an economic variable. Indeed, to optimize the cost of the cardboard strips, and other parts of the composite, the distances between neighboring covers as well as the width of the strip must be reduced as much as possible, the surface of the cutting skeleton not being valued in the product. finished.
  • the pitch can also be imposed by the printing machines of the suppliers.
  • the offset cutting angle is then a function of the pitch of the spots and the width of the strips used. With this method of cutting two covers 35,36 offset by a pitch Pb of the strip, a cutting pitch Pd of the order of magnitude of about 1.4 * Pb is obtained, so that there is more space to place the tools related to cutting and transferring the cover.
  • Cutting tools are known per se to those skilled in the art. It will be noted that the die punches of the cutting tools can extend laterally from the composite strip.
  • the pitch of the sealing tools Po is not necessarily the same as the cutting pitch Pd, by the fact that for reasons of flexibility of the operations, the format changes (diameter or shape) must be rapid and at a cost. limited tooling.
  • the pitch of the Po tools is therefore the result of an optimization for a panel of formats. This difference between the cutting pitch Pd and the constant pitch of the tools Po imposes a solution of pitching Po by the transfer system, the covers once cut
  • the figures 8 and 9 illustrate two cases where Pd ⁇ Po and Pd> Po respectively.
  • the movement of this transfer device is ensured by a linear actuator 37, pneumatic, electric or other, ensuring a rectilinear movement.
  • the transfer angle is achieved by the movement of the two transfer slides 38, which themselves have a transverse movement.
  • the two transfer slides 38 which themselves have a transverse movement.
  • the cutting pitch is 141.42 mm (2 diameters 90 cut)
  • the pitch of the forming / sealing tools for the cover (or bottom) is 132 mm
  • the distance between the cutting point and the center of the forming tool / sealing is 200 mm.
  • the transfer device must then have a transfer angle of 2.7 ° to effect this transition.
  • This compact system makes the exit of the strip skeleton more reliable by pulling on it with a roller traction device 19 as described above, arranged downstream of the cut, instantly reproducing the movement of the strip advance 19 of the strip. composite upstream of cutting.
  • This improvement in precision is due to the fact that the strip remains taut under the cutting station. We thus avoid the formation of wave (s) at the front of the tape advance upstream of the cutting of the covers, situated relatively far behind the cutting position because of the diagonal cutting system.
  • the latter is stretched by the skeleton extraction advance strip after the execution of each advance and before each cutting.
  • This tension movement is important because the overall yield between the two band feeds and the path of the skeleton band is subject to a variable yield, due to the variable friction coefficient, to the machining tolerance between the 2 band feeds , etc ...
  • This function is ensured by a micro advance calibrated by the extraction servomotor. The stopping of this micro advance is controlled by a constant torque or a time delay.
  • the skeleton resulting from the cutting of the cover is, as previously described, a composite.
  • one or the other part of this composite can be composed of "noble" materials, pure cellulose or aluminum for example.
  • the machine can be equipped with a separator band of cellulose materials / membrane band after extraction.
  • a tape advance 19 ' is added after that of extraction 19 of the skeleton, operating on the same principle.
  • a strip separation device 40 illustrated schematically on the figure 7 is placed between these two tape feeds. Only one of the two bands is pulled by the last band advance 19 '. The strips are thus separated, the control of the gluing of the cover allowing easy separation. Each element is then collected in different containers.
  • the forming / sealing pads according to the invention have a design favoring this, illustrated on the figure 10 .
  • a conical interface 9 makes it possible to create a support at the center of the cardboard layer 44 of the cover to channel the air circulation from the center of the cover, towards the skirt then towards the outside, as shown by the arrows on the figure 10 .
  • the difference between the hot and cold parts of the tool can exceed 50 ° C.
  • the hot part 45 of the sealing tool is isolated from the conical interface 9 by an appropriate mounting of the latter on the support 47 of the tampon, itself isolated from the hot part 45 by an insulating material 46.
  • the temperature on the support interface 9 is then limited, the printing of the cover is therefore not altered by heat (no reactivation of the inks and varnishes).
  • the support 47 of the tool is perforated to let the hot air come out.
  • the sealing temperature can be reduced.
  • the decrease in the sealing temperature avoids weakening the barrier films 42 of the tubular body and seal films 43 of the cover.
  • the cardboard layer 41 of the tubular body and the skirt of the cover being subjected to high pressure by the back-sealing module 58, the cohesion between the sealing films of the body 42 of the box and of the membrane 43 has more time for be homogeneous without being degraded by a high temperature.
  • the tightness of the boxes and the resistance of the cover are thereby improved.
  • the air is evacuated not only during the forming of the cover but also during the static sealing phase (buffer in the low position in the cover and cover in its final position in the box). The same process is applicable to the sealing of a simple or composite bottom.
  • the accuracy of the depth of the lids (or bottoms) in a box is essential for the conformity of the finished product.
  • the position depth of the covers may vary from box to box for various reasons.
  • the machine is equipped with two independent forming / sealing systems 7 with programmable stroke for each pair of forming station 4. Thanks to the register of the sealing plate 3, the machine knows which tool 7 is to time t at the cover forming / sealing station.
  • the forming system can be assigned a stroke for each tool. This stroke can be modified at any time by an operator, following a depth check.
  • the depth can also be adjusted dynamically by measuring the depths of the outgoing covers from the sealing station. This measurement is carried out by an appropriate sensor, the cover / tool affiliation is made by the register of the PLC.
  • the automaton can then give the forming tools the appropriate strokes for each tool, within a pre-determined tolerance threshold.
  • This device of the finishing unit is used to make a precise precut on a cover and uses a circular cutting knife.
  • the box fits into a mandrel 48 called a precut mandrel.
  • the knife 50 mounted on a movable support 49 then plunges onto the box passing through all the layers 41, 42 of the body of the box and of the membrane 43 of the cover.
  • a fixed stop 51 limits its diving so that it does not pass through the cardboard layer 44 of the cover.
  • the diving position of the knife is located on the vertical skirt of the cover / membrane composite and below the surface of adhesive bonding the membrane to the cover previously sealed by the sealing unit 2 of the machine.
  • the mandrel 48 then rotates to completely or partially cut the perimeter of the box.
  • the mandrel 48 and the knife 50 are linked by a mechanical transmission or by a virtual axis.
  • a servomotor 52 drives the precut mandrel; in the other case, an additional servomotor drives the knife.
  • a tangential speed synchronization is established between the knife 50 and body 41 of the box.
  • This synchronization is either obtained by a mechanical transmission, by chain or belt, the reduction or multiplication ratio of which is the same as the ratio between the diameter of the pre-cut mandrel 48 and the diameter of the knife 50, or by rotation interpolation of the two servomotors of the precut mandrel and the knife, the respective speeds of which are coordinated with the reduction or multiplication of the box / knife.
  • the ratio is 1; for a 50mm pre-cut mandrel and a 100mm diameter knife, the reduction ratio is 2, the gearbox then rotating twice as fast as the knife with regard to the number of revolutions per minute.
  • the knife wire can be deliberately altered by local removal 53 of the cutting wire thus maintaining a link between the cover and the box to create more or less thick attachment points on the box, which serve then tamper-evident points 54.
  • the lid will be opened after the attachment points 54 have broken.
  • An opening hinge 55 can also be produced according to the same principle. In this case, the alteration of the cutting line 56 is greater. The cover then remains linked to the body after opening. You can also obtain a hinge by making an incomplete cut out of the box by making less than one turn with the pre-cut mandrel.
  • the precision of the precut must be high, so as not to pass through the cover part of the membrane / cover composite, and repetitively, an original sensor is placed on the knife holder. After each cutting cycle, the knife returns to its initial position. Thus, the same part of the cutting line is always used relative to the precut mandrel. The wear of the knife is then more homogeneous and easily compensated by the reduction of the distance between the pre-cut mandrel and the knife when the latter is plunged. In addition, thanks to this sensor, the attachment points can always be in the same place relative to the mandrel.
  • a support is made on the top of the box by a prestressing module 57, movable in translation, prestressed by springs. This prestressing of the box also stabilizes it, preventing the cutting line of the knife from moving the box along the axis of rotation. The junction of the precut is then perfect.
  • This device is adaptable for non-round boxes (oval, square, rectangular ).
  • the diving stop is no longer fixed, but variable depending on the shape of the cover. Its position varies by copying a roller rotating on a cam of homothetic shape to the cutting mandrel, the roller being on the frame of the knife holder, or by the movement of an electric axis interpolated to the shape by programming it. .
  • the stops of the tape feeds are managed by reading a printed spot with respect to each printing of the cover, for example by an optical cell. In some cases, it happens that the spot is improperly printed or degraded, the reading of the spot is then impossible. If a tape feed is missed due to a missing spot or illegible, the cover and membrane strips are then offset with respect to printing, all the operations carried out prior to the joining of the strips are also offset and the cover resulting from assembly and several future covers are non-compliant. If these same covers are inserted in a box body, the whole box is non-compliant; which represents a risk to the end customer.
  • the machine's automation is capable of managing this problem automatically without creating a line stop and purging of tape which is costly in time and in raw material by the following process: steps (printing ) of the band are constant, with a certain tolerance. This tolerance is taken into account to determine the size of the gluing imprint as well as the centering of the print. If all the tape stops are within this tolerance, the covers are considered to be correct.
  • the printing step of the covers is indicated via the man / machine interface, the minimum and maximum tolerance of the advance, which can vary depending on the type of operation to be performed on the strips, is also given. At each advance, the automaton compares the position of the spot with respect to the actual advance made.
  • This measurement is made using the encoder of the tape feed servomotor or an encoder wheel pulled by the cover strip. If the spot is detected before the end of the theoretical advance of a printing step, it is ignored and the tape advance stops at the value of the previously programmed printing step. The cover is then positioned within the tolerances. If the spot is not detected at its theoretical position, the tape advance stops at the value of the previously programmed printing step. The cover is then positioned within the tolerances.
  • the number of advances made in pitch measurement mode in the event of a non-conforming spot is programmable by the operator; if this number is exceeded, non-compliant covers are saved in a register and then removed from the cutting station as follows. Cutting of the lids is stopped, the cover strip advance then advances to remove the non-conforming lids from the cutting system. The risk of boxes with non-compliant covers is thus eliminated. The same process is used for the cover cutting strip advance.
  • the machine according to the invention is a fast machine, capable of producing 80 to 200 units per minute of box body provided with lids or bottoms based on cardboard materials.
  • the main advantage of the machine is to produce 80 to 85% faster than a state-of-the-art machine with comparable operating costs, and this with a single machine, therefore fewer mechanical, electrical, electronic elements. and tires than 2 old generation machines operating at the same time.
  • the use of a machine according to the invention in place of two machines of the state of the art generates savings in space, in electrical consumption, in additional equipment and in spare parts; which significantly reduces the production cost of the boxes and therefore the cost price.
  • the machine according to the invention needs only one person for the control. Production therefore increases from 80 to 85% but the number of people on the line remains the same.
  • the space saving is also very important, for example for the versions adapted for the installation of cardboard bottoms after filling, which are machines used at the end customer, because customers rarely have the place to accommodate several machines in the same place of production.
  • the technology of manufacturing and assembling boxes with cardboard lids and bottoms that is to say ecological and recyclable packaging, is more voluminous than the conventional technologies of composite cardboard boxes, it i.e. cardboard body, metal bottom and plastic cover with membrane, difficult to recycle.
  • the space saving argument is therefore important if the question arises of switching from composite box technology to entirely cardboard box technology.

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Description

La présente invention concerne le domaine des emballages tubulaires en carton, comprenant un corps tubulaire rigide fait d'un matériau cartonné, un fond et/ou un couvercle également fait d'un matériau cartonné, assemblés au corps tubulaire, destinés à contenir des produits solides sous formes divisées, telles que poudres, grains, granulés, fibres, chips, etc. ou encore des produits sous forme liquide ou sous forme pâteuse. Les emballages tubulaires concernés sont aussi bien les emballages de section circulaire que les emballages tubulaires de section non circulaire, par exemple des emballages de section rectangulaire ou ovale.The present invention relates to the field of tubular cardboard packaging, comprising a rigid tubular body made of cardboard material, a bottom and / or a cover also made of cardboard material, assembled to the tubular body, intended to contain solid products. in divided forms, such as powders, grains, granules, fibers, chips, etc. or products in liquid form or in pasty form. The tubular packaging concerned is both packaging of circular section and tubular packaging of non-circular section, for example packaging of rectangular or oval section.

Le terme emballage en carton désigne usuellement des emballages dont 90 à 98% en poids sont constitués de matériaux cellulosiques. Ce type d'emballage comprend, en plus des couches de matériaux cellulosiques, des couches ou revêtements métalliques, tels que l'aluminium, ou synthétiques, associés aux matériaux cellulosiques pour former des matériaux surfaciques composites, qui sont désignés ici par le terme «matériau cartonné». Ces matériaux métalliques ou synthétiques constituent, selon une terminologie généralement acceptée, un «matériau barrière » isolant le produit stocké à l'intérieur de l'emballage de l'environnement extérieur, par exemple pour éviter une oxydation, un dessèchement, ou vis-à-vis de polluants. Les couches ou revêtements synthétiques peuvent également jouer un rôle essentiel de scellage entre deux parties de l'emballage au cours de sa fabrication; dans ce cas elles sont généralement qualifiées de «matériau barrière réactivable». Dans la suite de ce texte, pour simplifier le langage, le terme «scellage» est utilisé pour qualifier l'opération faisant adhérer, de façon définitive ou réversible, deux matériaux d'un emballage, quel que soit le type de substance adhésive, colle à froid, colle à chaud, hotmelt, revêtement fusible, etc. mise en œuvre.
La présente invention concerne plus particulièrement un procédé de fabrication d'emballages en carton comprenant un corps tubulaire fait d'une ou plusieurs couches d'un matériau cartonné et une structure obturante, qui forme soit le couvercle soit le fond de l'emballage, comprenant

  • la fourniture de structures obturantes sous forme d'aplats comprenant une partie centrale de forme conjuguée à la forme de l'ouverture des corps tubulaires, entourée d'une partie périphérique rabattable suffisante pour assembler de manière étanche une structure obturante avec la paroi latérale interne d'un corps tubulaire,
  • l'introduction des structures obturantes dans un outil de formage, la mise en forme de cuvette et au besoin le chauffage de la structure obturante,
  • l'introduction, la pose et le scellage de la cuvette dans le corps tubulaire au moyen du dit outil de formage.
Selon que la structure obturante ci-dessus est un couvercle ou un fond, ce type d'emballage recevra ultérieurement respectivement soit un fond soit un couvercle, après le remplissage avec le produit qu'il est destiné à contenir.The term cardboard packaging usually designates packaging of which 90 to 98% by weight are made of cellulosic materials. This type of packaging comprises, in addition to the layers of cellulosic materials, metallic layers or coatings, such as aluminum, or synthetic, associated with the cellulosic materials to form composite surface materials, which are designated here by the term "material cardboard ". These metallic or synthetic materials constitute, according to generally accepted terminology, a "barrier material" isolating the product stored inside the packaging from the external environment, for example to avoid oxidation, drying out, or vis-à-vis -vis pollutants. Synthetic layers or coatings can also play an essential role in sealing between two parts of the packaging during its manufacture; in this case they are generally qualified as “reactivable barrier material”. In the remainder of this text, to simplify the language, the term “sealing” is used to describe the operation which causes two packaging materials to adhere, definitively or reversibly, whatever the type of adhesive substance, glue cold, hot glue, hotmelt, fusible coating, etc. Implementation.
The present invention relates more particularly to a method of manufacturing cardboard packaging comprising a body tubular made of one or more layers of cardboard material and a sealing structure, which forms either the cover or the bottom of the package, comprising
  • the provision of obturating structures in the form of flat surfaces comprising a central part of shape conjugate to the shape of the opening of the tubular bodies, surrounded by a foldable peripheral part sufficient to tightly assemble a obturating structure with the internal lateral wall d '' a tubular body,
  • the introduction of the obturating structures into a forming tool, the shaping of a bowl and, if necessary, the heating of the obturating structure,
  • the introduction, installation and sealing of the bowl in the tubular body by means of said forming tool.
Depending on whether the above sealing structure is a cover or a bottom, this type of packaging will subsequently receive respectively either a bottom or a cover, after filling with the product that it is intended to contain.

La présente invention concerne également une machine pour mettre en œuvre le procédé ci-dessus.The present invention also relates to a machine for implementing the above method.

Le brevet français publié sous le No FR 2 716 408 , décrit la fabrication d'un emballage tubulaire du type ci-dessus. La structure obturante est formée d'un carton-couvercle constitué de matériau cellulosique et d'une membrane de sécurité en matériau cellulosique revêtu d'un matériau barrière. Ces deux pièces sont formées l'une après l'autre, sous forme de cuvettes cylindriques par un poinçon de forme au travers d'une matrice extérieure et engagées dans une extrémité du corps tubulaire. Les parois latérales des deux pièces sont assemblées de manière étanche avec la paroi interne du corps tubulaire. Puis la paroi du corps tubulaire est prédécoupée selon une ligne périphérique située entre les zones d'assemblage des deux pièces, de façon à permettre l'ouverture du carton-couvercle sans arracher la membrane de sécurité.The French patent published under No FR 2 716 408 , describes the manufacture of a tubular package of the above type. The sealing structure is formed by a cardboard cover made of cellulosic material and a safety membrane made of cellulosic material coated with a barrier material. These two parts are formed one after the other, in the form of cylindrical bowls by a shape punch through an external die and engaged in one end of the tubular body. The side walls of the two parts are tightly assembled with the internal wall of the tubular body. Then the wall of the tubular body is precut along a peripheral line located between the areas of assembly of the two parts, so as to allow the opening of the cardboard cover without tearing off the safety membrane.

La demande de brevet FR 1251086 décrit un procédé et un dispositif de fabrication d'un emballage comprenant un corps tubulaire fait d'un matériau cartonné et un couvercle, assemblé au corps tubulaire de manière étanche, ce procédé comprenant

  • l'assemblage à plat de trois matériaux en bandes, à savoir un matériau cellulosique revêtu d'au moins un matériau barrière réactivable, une pièce de laminage et un matériau formant la membrane de sécurité;
  • la découpe de la bande composite formée des trois matériaux assemblés en structures obturantes sous forme d'aplats comprenant une partie centrale de forme conjuguée à la forme de l'ouverture des corps tubulaires, entourée d'une partie périphérique rabattable suffisante pour assembler de manière étanche la structure obturante avec la paroi latérale interne d'un corps tubulaire;
  • l'introduction de ladite structure obturante dans un outil de formage, de pose et de scellage, le chauffage et la mise en forme de cuvette de la structure obturante, l'introduction et le scellage de la cuvette dans le corps tubulaire au moyen du dit outil de formage, de pose et de scellage;
  • la prédécoupe de la paroi latérale du corps tubulaire et de la membrane selon une ligne périphérique située au-dessus de ladite languette;
  • optionnellement une opération de finition, telle qu'un ourlage.
The patent application FR 1251086 describes a method and a device for manufacturing a packaging comprising a tubular body made of cardboard material and a cover, assembled to the tubular body in a leaktight manner, this method comprising
  • the flat assembly of three materials in strips, namely a cellulosic material coated with at least one reactivatable barrier material, a laminating part and a material forming the safety membrane;
  • the cutting of the composite strip formed of the three materials assembled in obturating structures in the form of flat areas comprising a central part of shape conjugate to the shape of the opening of the tubular bodies, surrounded by a folding peripheral part sufficient to assemble in a leaktight manner the sealing structure with the internal side wall of a tubular body;
  • the introduction of said obturating structure into a tool for forming, laying and sealing, the heating and shaping of the bowl of the obturating structure, the introduction and sealing of the bowl in the tubular body by means of said forming, laying and sealing tool;
  • the precut of the side wall of the tubular body and of the membrane along a peripheral line situated above said tongue;
  • optionally a finishing operation, such as hemming.

La demande de brevet US 2005/034819 décrit une machine de fabrication de godets coniques, les corps étant réalisés un à un dans une première unité puis alimentés un à un à un plateau d'assemblage, alors que les fonds des godets sont alimentés deux par deux à ce plateau d'assemblage. De ce fait, la cadence du dispositif d'alimentation des fonds peut être diminuée de moitié par rapport à la cadence de l'unité de fabrication des corps.The patent application US 2005/034819 describes a machine for manufacturing conical cups, the bodies being produced one by one in a first unit and then fed one by one to an assembly plate, while the bottoms of the cups are fed two by two to this assembly plate. Therefore, the rate of the fund supply device can be halved compared to the rate of the body manufacturing unit.

La demande de brevet FR 2 060 078 décrit également une machine de fabrication de godets, en matière plastique, les corps étant réalisés un à un dans une première unité puis alimentés un à un à un plateau d'assemblage, les fonds des godets étant également alimentés un par un à ce plateau d'assemblage, et les godets assemblés étant transféré un à un dans une station de finition. Dans une variante d'exécution, la station de finition est équipée d'outils triples ou doubles, ce qui a pour effet d'abaisser d'autant la cadence de rotation de cette station par rapport à la cadence des unités en amont.The patent application FR 2 060 078 also describes a machine for the production of plastic buckets, the bodies being produced one by one in a first unit and then supplied one by one to an assembly tray, the bottoms of the buckets also being fed one by one to this assembly tray, and the assembled buckets being transferred one by one to a finishing station. In an alternative embodiment, the finishing station is equipped with triple or double tools, which has the effect of lowering the rate of rotation of this station by as much as compared to the rate of the upstream units.

Les machines de l'état de la technique mettant en œuvre les procédés décrits ci-dessus travaillent à des cadences de 20-80 unités, à savoir corps tubulaires + couvercles, par minute. Après adaptation, ces machines à former des couvercles permettent également la pose de fonds en carton dans des boites préalablement remplies. Cette dernière opération s'effectue dans les usines consommatrices de ces emballages.The machines of the state of the art implementing the methods described above work at rates of 20-80 units, namely tubular bodies + covers, per minute. After adaptation, these cover forming machines also allow the laying of cardboard bottoms in pre-filled boxes. This latter operation is carried out in factories consuming these packaging.

Avec le fort développement des ventes de boites en carton du type décrit ci-dessus depuis 2007 et la pression sur les prix exercée par les industries consommatrices de ces emballages, une demande existe pour trouver des solutions techniques pour produire plus, plus vite et donc moins cher.With the strong development of sales of cardboard boxes of the type described above since 2007 and the pressure on prices exerted by the industries consuming these packaging, there is a demand to find technical solutions to produce more, faster and therefore less expensive.

A cet effet, l'invention propose un procédé de fabrication d'emballages selon la revendication 1 comprenant un corps tubulaire fait d'un matériau cartonné et une structure obturante, comprenant

  • l'approvisionnement d'une unité de scellage en corps tubulaires préformés et en structures obturantes sous forme d'aplats comprenant une partie centrale de forme conjuguée à la forme de l'ouverture des corps tubulaires, entourée d'une partie périphérique rabattable suffisante pour assembler de manière étanche une structure obturante avec la paroi latérale interne d'un corps tubulaire,
  • l'introduction de chaque structure obturante dans un outil de formage, et sa mise en forme de cuvette
  • l'introduction, la pose et le scellage de ladite cuvette dans un corps tubulaire au moyen du dit outil de formage;
  • si la structure obturante est un couvercle, la prédécoupe de la paroi latérale dudit corps tubulaire et une prédécoupe partielle du dit couvercle selon une ligne périphérique,
  • si la structure obturante est un couvercle, au moins une opération de finition de l'extrémité de l'emballage portant ladite structure obturante,
procédé dans lequel les dits corps tubulaires sont amenés deux par deux à ladite unité de scellage, les structures obturantes sont amenées deux par deux à des paires d'outils de formage de ladite unité de scellage pour y être mises en forme de cuvettes, puis introduites deux par deux, posées et scellées dans des paires de corps tubulaires par lesdites paires d'outils de formage, et les corps tubulaires portant les lesdites structures obturantes sont soumis deux par deux aux opérations subséquentes de prédécoupe et de finition,
caractérisé par le fait que l'introduction des structures obturantes dans l'outil de formage est conduite par un dispositif d'introduction présentant des moyens d'ajustement du pas de découpe de l'unité de confection des structures obturantes au pas des outils de formage, comprenant un actionneur linéaire longitudinal assurant un mouvement rectiligne et deux coulisseaux latéraux, ayant un mouvement transversal, réalisant un angle de transfert.To this end, the invention provides a method of manufacturing packaging according to claim 1 comprising a tubular body made of a cardboard material and a sealing structure, comprising
  • the supply of a sealing unit with preformed tubular bodies and obturating structures in the form of flat surfaces comprising a central part of shape conjugate to the shape of the opening of the tubular bodies, surrounded by a foldable peripheral part sufficient to assemble sealingly a sealing structure with the internal side wall of a tubular body,
  • the introduction of each sealing structure into a forming tool, and its shaping into a bowl
  • the introduction, installation and sealing of said bowl in a tubular body by means of said forming tool;
  • if the sealing structure is a cover, the precut of the side wall of said tubular body and a partial precut of said cover along a peripheral line,
  • if the sealing structure is a cover, at least one operation for finishing the end of the packaging carrying said sealing structure,
process in which said tubular bodies are brought two by two to said sealing unit, the obturating structures are brought two by two to pairs of forming tools of said sealing unit to be formed therein into bowls, then introduced two by two, laid and sealed in pairs of tubular bodies by said pairs of forming tools, and the tubular bodies carrying said obturating structures are subjected two by two to the subsequent operations of pre-cutting and finishing,
characterized by the fact that the introduction of the shutter structures into the forming tool is carried out by an introduction device having means for adjusting the cutting pitch of the unit for making the shutter structures to the pitch of the forming tools , comprising a longitudinal linear actuator ensuring a rectilinear movement and two lateral slides, having a transverse movement, providing a transfer angle.

Selon un mode d'exécution, le procédé comprend

  • l'assemblage à plat d'au moins deux matériaux en bandes, à savoir une bande d'un matériau cellulosique pouvant être revêtu d'au moins un matériau barrière et une bande d'un matériau formant une membrane de sécurité, en une bande composite,
  • la découpe de la bande composite en structures obturantes par paires d'aplats, l'un des aplats d'une paire étant découpé dans la partie gauche et l'autre aplat de la même paire étant découpé dans la partie droite de la bande composite.
According to one embodiment, the method comprises
  • the flat assembly of at least two strip materials, namely a strip of cellulosic material which can be coated with at least one barrier material and a strip of a material forming a safety membrane, into a composite strip ,
  • cutting the composite strip into sealing structures in pairs of flat areas, one of the flat areas of a pair being cut out from the left side and the other flat area of the same pair being cut out from the right side of the composite strip.

Selon un mode d'exécution, le procédé est cadencé pas à pas, et l'avance des bandes d'un pas, une séquence d'assemblage des matériaux en bandes et une séquence de découpe de deux structures obturantes dans la bande composite sont asservies à l'introduction d'une paire de structures obturantes dans l'outil de formage.According to one embodiment, the method is clocked step by step, and the advance of the bands by one step, a sequence of assembly of the materials into bands and a sequence of cutting two sealing structures in the composite strip are slaved to the introduction of a pair of sealing structures in the forming tool.

Selon un mode d'exécution, une séquence d'assemblage de la bande composite comprend

  • la création d'une différence de relief sur la bande de matériau cellulosique entre les zones centrales d'une paire de structures obturantes et les zones périphériques à encoller, cette étapes de procédé étant optionnelle selon les colles,
  • la pose d'un film de colle sur les lesdites zones périphériques,
  • la mise en contact de la bande de matériau cellulosique et de la bande de membranes,
  • le pincement de la zone à encoller entre et par des poinçons compressant localement lesdites bandes,
  • l'application d'un outil presseur entre les dits poinçons.
According to one embodiment, an assembly sequence of the composite strip comprises
  • creating a difference in relief on the strip of cellulosic material between the central areas of a pair of structures sealing and peripheral areas to be glued, this process steps being optional according to the adhesives,
  • laying a film of glue on said peripheral zones,
  • bringing the strip of cellulosic material into contact with the strip of membranes,
  • pinching the area to be bonded between and with punches locally compressing said strips,
  • the application of a pressing tool between said punches.

Selon un mode d'exécution, après chaque avance de la bande composite et avant la découpe d'une paire de structures obturantes le squelette de la bande composite est tendu par des moyens de traction.According to one embodiment, after each advance of the composite strip and before the cutting of a pair of obturating structures, the skeleton of the composite strip is stretched by traction means.

Selon un mode d'exécution l'aplat découpé dans la partie gauche et l'aplat découpé dans la partie droite de la bande composite lors d'une même opération de découpe sont longitudinalement décalés.According to one embodiment, the flat cut out in the left part and the flat cut out in the right part of the composite strip during the same cutting operation are longitudinally offset.

Selon un mode d'exécution le squelette de la bande composite est séparé en ses composantes en aval desdits moyens de traction.According to one embodiment, the skeleton of the composite strip is separated into its components downstream of said traction means.

Un autre objet de l'invention est une machine de fabrication d'emballages selon la revendication 8 comprenant un corps tubulaire fait d'un matériau cartonné et une structure obturante faite d'un matériau cartonné, assemblée au corps tubulaire, ladite machine comprenant

  • une unité de scellage comprenant un plateau de scellage tournant, le dit plateau de scellage comprenant un nombre N de postes de scellage, avec 3 ≤ N ≤ 50, chaque poste de scellage comprenant deux outils de scellage, le dit plateau de scellage tournant de manière cadencée via un indexeur à N stops,
  • un dispositif d'alimentation introduisant des corps tubulaires deux par deux dans un premier poste de scellage,
  • un dispositif d'introduction amenant des structures obturantes sous forme d'aplats, deux par deux, à une paire d'outils de formage d'un deuxième poste de scellage en amont du premier poste de scellage,
  • un dispositif de transfert de corps tubulaires, scellés à des structures obturantes, du plateau de scellage à une unité agencée en aval,
caractérisée en ce que le dispositif d'introduction de structures obturantes présente des moyens d'ajustement du pas de découpe de l'unité de confection des structures obturantes au pas des outils de formage du poste de scellage de l'unité de scellage, comprenant un actionneur linéaire longitudinal assurant un mouvement rectiligne et deux coulisseaux latéraux, ayant un mouvement transversal, réalisant un angle de transfert.Another object of the invention is a packaging manufacturing machine according to claim 8 comprising a tubular body made of cardboard material and a sealing structure made of cardboard material, assembled to the tubular body, said machine comprising
  • a sealing unit comprising a rotating sealing plate, said sealing plate comprising a number N of sealing stations, with 3 ≤ N ≤ 50, each sealing station comprising two sealing tools, said sealing plate rotating in a manner clocked via an indexer with N stops,
  • a supply device introducing tubular bodies two by two into a first sealing station,
  • an introduction device bringing obturating structures in the form of flat areas, two by two, to a pair of forming tools from a second sealing station upstream of the first sealing station,
  • a device for transferring tubular bodies, sealed to sealing structures, from the sealing plate to a unit arranged downstream,
characterized in that the device for introducing obturating structures has means for adjusting the cutting pitch of the unit for making the obturating structures to the pitch of the forming tools of the sealing station of the sealing unit, comprising a longitudinal linear actuator ensuring a rectilinear movement and two lateral slides, having a transverse movement, achieving a transfer angle.

Selon un mode de réalisation la machine comprend de plus

  • une unité de finition comprenant un plateau de finition tournant, le dit plateau de finition comprenant un nombre N de postes de finition agencés pour accueillir chacun une paire de corps tubulaires scellés à des structures obturantes, le dit plateau de finition tournant de manière cadencée via un indexeur à N stops, et au moins un outil double de finition, avec lequel chaque poste de finition vient interagir pour effectuer au moins une opération spécifique de finition sur chaque corps tubulaire scellé à une structure obturante,
  • un dispositif d'éjection des dits emballages du plateau de finition.
According to one embodiment, the machine further comprises
  • a finishing unit comprising a rotating finishing plate, the said finishing plate comprising a number N of finishing stations arranged to each accommodate a pair of tubular bodies sealed to obturating structures, the said finishing plate rotating in clockwise fashion via a indexer with N stops, and at least one double finishing tool, with which each finishing station interacts to perform at least one specific finishing operation on each tubular body sealed to a sealing structure,
  • a device for ejecting said packaging from the finishing tray.

Selon un mode de réalisation de la machine, N=8.According to one embodiment of the machine, N = 8.

Selon un mode d'exécution, la machine peut être réalisée avec seulement une unité de scellage, si on ne veut pas faire d'opération de finition sur la boite, en particulier dans le cas où le procédé concerne la pose des fonds sur des corps tubulaires.According to one embodiment, the machine can be produced with only a sealing unit, if one does not want to make a finishing operation on the box, in particular in the case where the method relates to the placing of the bottoms on bodies tubular.

Selon un mode de réalisation de la machine un dit outil double de finition est un outil de prédécoupe de couvercle.According to one embodiment of the machine, a so-called double finishing tool is a cover precut tool.

Selon un mode de réalisation de la machine l'unité de finition comprend un outil double d'ourlage.According to one embodiment of the machine, the finishing unit comprises a double hemming tool.

Selon un mode de réalisation de la machine l'unité de finition comprend au moins un outil double de gerbage. Selon un mode de réalisation de la machine, elle comprend une unité de confection deux par deux de structures obturantes sous forme d'aplats comprenant une partie centrale de forme conjuguée à la forme de l'ouverture des corps tubulaires, entourée d'une partie périphérique rabattable suffisante pour assembler une structure obturante avec la paroi latérale interne d'un corps tubulaire, fonctionnant en mode cadencé pas à pas, et asservie à l'introduction d'une paire de structures obturantes dans deux outils de formage.According to one embodiment of the machine, the finishing unit comprises at least one double stacking tool. According to one embodiment of the machine, it comprises a unit for making two by two of obturating structures in the form of flat surfaces comprising a central part of shape conjugate to the shape of the opening of the tubular bodies, surrounded by a peripheral part. foldable sufficient to assemble a sealing structure with the internal side wall of a tubular body, operating in step-by-step mode, and slaved to the introduction of a pair of sealing structures in two forming tools.

Selon un mode de réalisation de la machine ladite unité de confection comprend

  • un dévidoir d'une bande d'un matériau cellulosique pouvant être revêtu d'au moins un matériau barrière et un dévidoir d'une bande d'un matériau formant une membrane de sécurité, la largeur des dites bandes étant suffisante pour loger transversalement deux structures obturantes,
  • optionnellement, un poste de mise en relief de zones prédéterminées de la bande de matériaux cellulosiques, en fonction du type de colle utilisée.
  • un poste d'encollage de la bande de matériaux cellulosiques,
un poste de mise en contact et de pressage de la bande de membrane sur la bande de matériaux cellulosiques,
  • un poste de découpe de structures obturantes comprenant deux outils de découpe décalés longitudinalement, et
  • au moins un avance-bande synchronisant l'avance de la bande de matériau cellulosique avec l'avance de la bande de matériau de membrane, formant une bande composite, le dit avance-bande et les postes précités de l'unité de confection étant asservis au dit dispositif d'introduction.
According to one embodiment of the machine, said confection unit comprises
  • a reel of a strip of cellulosic material which can be coated with at least one barrier material and a reel of a strip of a material forming a safety membrane, the width of said strips being sufficient to accommodate two structures transversely shutters,
  • optionally, a station for highlighting predetermined areas of the strip of cellulosic materials, depending on the type of adhesive used.
  • a station for gluing the strip of cellulosic materials,
a station for contacting and pressing the membrane strip on the cellulosic material strip,
  • a cutting station for shuttering structures comprising two cutting tools offset longitudinally, and
  • at least one strip feed synchronizing the feed of the strip of cellulosic material with the feed of the strip of membrane material, forming a composite strip, the said strip feed and the aforementioned stations of the garment unit being controlled to the said introducer.

Selon un mode de réalisation de la machine ladite unité de confection comprend un dispositif extracteur de squelette de bande et en particulier un dispositif séparateur de squelette de bande en ses composantes.According to one embodiment of the machine, said confection unit comprises a skeleton extractor device for tape and in particular a device for separating the skeleton of tape into its components.

L'invention a également pour objet

  • une machine selon l'invention comprenant un dispositif avance-bande pour une machine du type ci-dessus comprenant deux rouleaux d'entraînement de même diamètre et un servomoteur entraînant l'un des deux rouleaux, l'autre rouleau étant entraîné dans un rapport 1/1 par le premier rouleau.
  • une machine selon l'invention comprenant un dispositif d'encollage pour une machine du type ci-dessus, comprenant une presse mettant en relief deux par deux des zones d'encollage, un porte-empreinte transférant un film de colle d'un réservoir sur lesdites zones d'encollage, un dispositif presseur comprenant un jeu de poinçons isolant les dites zones d'encollage et un presseur agencé entre les dits poinçons.
  • une machine selon l'invention comprenant un dispositif d'introduction de structures obturantes pour une machine du type ci-dessus, présentant des moyens d'ajustement du pas de découpe de l'unité de confection des structures obturantes au pas des outils de formage d'un poste de scellage de l'unité de scellage comprenant un actionneur linéaire longitudinal et deux coulisseaux latéraux.
  • une machine selon l'invention comprenant un outil de formage pour une machine du type ci-dessus, comprenant un tampon conique appuyant sur le centre d'une structure obturante pour chasser l'air entre le matériau cellulosique et le matériau de membrane vers la périphérie, le dit tampon conique étant isolé thermiquement de la partie chaude de l'outil de formage.
  • une machine selon l'invention comprenant un tel outil de formage caractérisé en ce que la course de scellage du dit outil est ajustable.
  • une machine selon l'invention comprenant un outil de prédécoupe pour une machine du type ci-dessus, ladite structure obturante étant le couvercle, comprenant un couteau de découpe circulaire et un mandrin de prédécoupe logeant un corps tubulaire, le dit couteau étant agencé par rapport au mandrin de façon à inciser le corps tubulaire en dessous de la surface de colle liant la membrane aux matériaux cellulosiques du couvercle et de façon à traverser toutes les couches du corps tubulaire et la membrane mais non le matériau cellulosique du couvercle, les vitesses de rotation du couteau et du mandrin étant ajustées de façon à synchroniser les vitesses tangentielles du couteau et du corps tubulaire.
  • une machine selon l'invention comprenant un tel outil de prédécoupe, caractérisée en ce que le fils du couteau est altéré localement pour créer des points d'attache ou une charnière.
  • une machine selon l'invention comprenant un tel outil de prédécoupe, comprenant un module de précontrainte appuyant sur le sommet de l'emballage.
The invention also relates to
  • a machine according to the invention comprising a belt advance device for a machine of the above type comprising two drive rollers of the same diameter and a servomotor driving one of the two rollers, the other roller being driven in a ratio 1 / 1 by the first roller.
  • a machine according to the invention comprising a sizing device for a machine of the above type, comprising a press showing two by two of the sizing zones, an impression tray transferring a film of glue from a reservoir to said gluing zones, a pressing device comprising a set of punches insulating said gluing zones and a presser arranged between said punches.
  • a machine according to the invention comprising a device for introducing shutter structures for a machine of the above type, having means for adjusting the cutting pitch of the unit for making shutter structures to the pitch of the forming tools d a sealing station of the sealing unit comprising a longitudinal linear actuator and two lateral slides.
  • a machine according to the invention comprising a forming tool for a machine of the above type, comprising a conical pad pressing on the center of a sealing structure to expel the air between the cellulosic material and the membrane material towards the periphery , said conical pad being thermally insulated from the hot part of the forming tool.
  • a machine according to the invention comprising such a forming tool characterized in that the sealing stroke of said tool is adjustable.
  • a machine according to the invention comprising a precut tool for a machine of the above type, said structure obturante being the cover, comprising a circular cutting knife and a precut mandrel housing a tubular body, the said knife being arranged relative to the mandrel so as to incise the tubular body below the surface of adhesive bonding the membrane to the cellulosic materials of the cover and so as to pass through all the layers of the tubular body and the membrane but not the cellulosic material of the cover, the rotational speeds of the knife and of the mandrel being adjusted so as to synchronize the tangential speeds of the knife and of the tubular body.
  • a machine according to the invention comprising such a precut tool, characterized in that the son of the knife is locally altered to create attachment points or a hinge.
  • a machine according to the invention comprising such a precut tool, comprising a prestressing module pressing on the top of the packaging.

D'autres caractéristiques et avantages de l'invention apparaîtront à l'homme du métier de la description ci-dessous d'un mode d'exécution d'une machine selon l'invention ainsi que de modes d'exécution de certaines de ses composantes un, en se référant aux dessins, dans lesquels

  • la figure 1 est une vue schématique de l'ensemble d'une machine,
  • la figure 2 est une vue schématique d'une unité de confection de la machine de la figure 1,
  • la figure 3 est une vue schématique de la partie amont de l'unité de confection de la figure 2,
  • la figure 4 est une vue en perspective d'un dispositif avance-bande,
  • les figures 5 et 6 sont des vues schématiques illustrant la progression de la bande des figures précédentes au niveau de la découpe de cette bande et en aval de celle-ci,
  • la figure 7 est une vue schématique illustrant le traitement du squelette de la bande après découpe selon la figure 6,
  • les figures 8 et 9 sont des vues schématiques illustrant deux configurations du dispositif d'introduction des structures obturantes dans l'unité de scellage,
  • la figure 10 est une vue schématique en coupe d'un tampon de scellage,
  • la figure 11 est une vue schématique illustrant l'ajustement de la course de l'outil de formage,
  • la figure 12 est une vue schématique en coupe illustrant un outil de prédécoupe.
Other characteristics and advantages of the invention will appear to those skilled in the art from the description below of an embodiment of a machine according to the invention as well as of embodiments of some of its components one, with reference to the drawings, in which
  • the figure 1 is a schematic view of an entire machine,
  • the figure 2 is a schematic view of a machine making unit of the figure 1 ,
  • the figure 3 is a schematic view of the upstream part of the confection unit of the figure 2 ,
  • the figure 4 is a perspective view of a tape advance device,
  • the figures 5 and 6 are schematic views illustrating the progression of the strip of the preceding figures at the level of the cutting of this strip and downstream of it,
  • the figure 7 is a schematic view illustrating the treatment of the skeleton of the strip after cutting according to the figure 6 ,
  • the figures 8 and 9 are schematic views illustrating two configurations of the device for introducing the obturating structures into the sealing unit,
  • the figure 10 is a schematic sectional view of a sealing pad,
  • the figure 11 is a schematic view illustrating the adjustment of the stroke of the forming tool,
  • the figure 12 is a schematic sectional view illustrating a precut tool.

Le mode d'exécution décrit ci-dessous est une machine assemblant des corps tubulaires de section ronde à des couvercles ronds pour former des emballages disposant d'une membrane de sécurité. L'homme du métier est en mesure d'en adapter les caractéristiques pour réaliser des modes d'exécution traitant des corps tubulaires de sections parallélépipédiques, oblongues, ovoïdes, ou d'autres formes ainsi que des modes d'exécutions mettant en œuvre d'autres types de structures obturantes. On peut également observer que les corps peuvent être traités de façon horizontale ou verticale selon la configuration machine choisie.The embodiment described below is a machine assembling tubular bodies of round section with round covers to form packages having a safety membrane. A person skilled in the art is able to adapt the characteristics thereof to produce embodiments treating tubular bodies of parallelepipedic, oblong, ovoid sections, or other forms as well as embodiments implementing other types of sealing structures. It can also be observed that the bodies can be treated horizontally or vertically depending on the machine configuration chosen.

La machine 1 illustrée par la figure 1 se compose de 3 unités principales :
L'unité de scellage 2 scelle les structures obturantes, c'est-à-dire des couvercles, dans des tubes rigides arrivant d'une machine de fabrication de corps tubulaires via un dispositif d'alimentation 5. Les corps sont introduits deux par deux dans un plateau tournant 3 à huit postes 4, chaque poste étant composé de deux outils de formage et de scellage 7. Les corps sont introduits dans chaque outil 7. Ce plateau 3 tourne de manière discontinue et cadencée via un indexeur à 8 stops. Les couvercles, sous forme d'aplats préalablement découpés depuis une bande, comme décrit ci-dessous, sont transférés dans les outils de scellage 7 par un dispositif d'introduction 6. Ces couvercles sont ensuite formés à travers une matrice 8 créant une jupe verticale, puis insérés dans un corps tubulaire par un tampon de scellage 9. Les boîtes ainsi obtenues, corps tubulaire + couvercle, restent dans le plateau avec le tampon de thermo-scellage en position basse pendant un ou plusieurs indexages du plateau. Les tampons sortent ensuite des boites et les boîtes ainsi créées sont éjectées du plateau de scellage et amenées par un dispositif de transfert 14 à une unité de finition.Machine 1 illustrated by figure 1 consists of 3 main units:
The sealing unit 2 seals the sealing structures, that is to say covers, in rigid tubes arriving from a machine for manufacturing tubular bodies via a supply device 5. The bodies are introduced two by two in a turntable 3 with eight stations 4, each station being composed of two forming and sealing tools 7. The bodies are introduced into each tool 7. This tray 3 rotates discontinuously and clocked via an indexer with 8 stops. The covers, in the form of flat areas previously cut from a strip, as described below, are transferred into the sealing tools 7 by an introduction device 6. These covers are then formed through a matrix 8 creating a vertical skirt , then inserted into a tubular body by a sealing pad 9. The boxes thus obtained, tubular body + cover, remain in the tray with the heat-sealing pad in the low position during one or more indexing of the plate. The pads then come out of the boxes and the boxes thus created are ejected from the sealing plate and brought by a transfer device 14 to a finishing unit.

L'unité de finition 10 termine le couvercle cartonné de la boite. Les corps tubulaire avec les structures obturantes scellées sont introduits dans un plateau tournant 11 à huit postes 12. Ce plateau tourne de manière discontinue et cadencée via un indexeur à huit stops. Chaque poste est composé de deux modules de finition. 13. Les corps tubulaires sont introduits deux par deux dans chaque module de finition. A une ou plusieurs étapes d'un poste 12, les deux boites en cours de finition sont présentées à un outil double de finition 14 qui effectue une opération spécifique de manière simultanée sur chacune des deux boites. Jusqu'à huit opérations de finition sont possibles, par exemple une prédécoupe pour faciliter l'ouverture, un ourlage, ou encore un gerbage. Les boites sont ensuite éjectées sur un convoyeur 30 deux par deux. Ce convoyeur aboutit à la mise en palette des boites.Finisher 10 completes the cardboard cover of the box. The tubular bodies with the sealed obturating structures are introduced into a rotating plate 11 with eight stations 12. This plate rotates discontinuously and clocked via an indexer with eight stops. Each station is made up of two finishing modules. 13. The tubular bodies are introduced two by two into each finisher. At one or more stages of a station 12, the two boxes being finished are presented to a double finishing tool 14 which performs a specific operation simultaneously on each of the two boxes. Up to eight finishing operations are possible, for example a pre-cut to facilitate opening, hemming, or stacking. The boxes are then ejected on a conveyor 30 two by two. This conveyor leads to the palletizing of the boxes.

Une unité de confection 15, illustrée dans son ensemble par la figure 2, confectionne à plat les couvercles par assemblage d'une bande de matériau cellulosique 16, en général du carton, le plus souvent imprimée, mais pas toujours, et d'une bande de membrane 17, qui peut avoir une structure complexe. La confection des couvercles à plat deux par deux est réalisée en utilisant une bobine de carton imprimée à 2 pistes. Ceci entraîne un gain de coût sur le matériau des couvercles de l'ordre de 10 à 15 % par rapport à une bobine simple imprimée car les bobines mères imprimées à deux pistes sont moins reprises en recoupe.A garment unit 15, illustrated as a whole by the figure 2 , makes the covers flat by assembling a strip of cellulosic material 16, generally cardboard, most often printed, but not always, and a strip of membrane 17, which can have a complex structure. Two by two flat covers are made using a 2-track printed cardboard reel. This results in a cost saving on the material of the covers of the order of 10 to 15% compared to a printed single coil since the printed mother coils with two tracks are less overlapped.

La bande imprimée a un pas constant marqué par des spots 18, car l'impression des couvercles est calée par rapport aux spots. Cette bande est tractée par plusieurs dispositifs avance-bande 19 à rouleaux motorisés qui sont asservis à chaque lecture d'un spot par un lecteur 20. Ce dispositif tracte également la bande de membrane 17 qui est alors synchronisée sur l'avance du couvercle. Des opérations sont effectuées à chaque arrêt sur la bande de matériaux cellulosiques 16, la bande de membrane 17 et la bande composite 21 qui résulte de leur assemblage dans un dispositif d'assemblage 22 dont un mode d'exécution est décrit ci-dessous. Cette bande passe ensuite dans un poste de découpe pour y être découpée en couvercles.The printed strip has a constant pitch marked by spots 18, because the printing of the covers is aligned with respect to the spots. This strip is towed by several strip advance devices 19 with motorized rollers which are slaved to each reading of a spot by a reader 20. This device also pulls the membrane strip 17 which is then synchronized with the advance of the cover. Operations are performed at each stop on the strip of cellulosic materials 16, the membrane strip 17 and the composite strip 21 which results from their assembly in an assembly device 22, an embodiment of which is described below. This strip then passes through a cutting station to be cut into lids.

Outre la découpe des couvercles, cette unité de confection peut réaliser des opérations multiples sur des bandes de carton ou autre, et ce de manière aisée car réalisées à plat. Il est ainsi possible de réaliser des grilles de poudrage en carton à partir d'une membrane en carton, d'ajouter des impressions sur les deux faces d'une bande, de disposer des composants supplémentaires sur un couvercle tel qu'un bec verseur, un bouchon, etc. En amont de l'assemblage, des opérations non illustrées sur les figures ont pu être réalisées sur la bande membrane, qui peut être un film simple ou complexe, une bande de carton simple ou complexe. Ces opérations peuvent par exemple être: la découpe et le retournement d'une languette, des trous pour une grille saupoudreuse, obturés ou non, l'ajout d'un document imprimé, la mise en place d'un bec verseur ou d'un bouchon plastique, ... De telles opérations sont aussi possibles sur la bande de couvercle. L'avance des deux bandes étant synchronisée, la précision des opérations est assurée.In addition to cutting the covers, this confection unit can carry out multiple operations on cardboard or other strips, and this in an easy way since they are made flat. It is thus possible to produce cardboard dusting grids from a cardboard membrane, to add impressions on both sides of a strip, to have additional components on a cover such as a pouring spout, a cap, etc. Upstream of the assembly, operations not illustrated in the figures could be carried out on the membrane strip, which may be a simple or complex film, a strip of simple or complex cardboard. These operations can for example be: cutting and turning a tongue, holes for a sprinkling grid, closed or not, adding a printed document, placing a pouring spout or a plastic cap, ... Such operations are also possible on the cover strip. The advance of the two bands being synchronized, the precision of the operations is ensured.

L'homme du métier prendra connaissance avec intérêt de modes d'exécution particuliers de certaines étapes du procédé selon l'invention et de modes de réalisation de certains postes de travail de la machine selon l'invention, décrits ci-après.Those skilled in the art will take note with interest of particular embodiments of certain steps of the method according to the invention and of embodiments of certain work stations of the machine according to the invention, described below.

Fabrication des couvercles à plat à la demande.Manufacture of flat covers on demand.

L'assemblage de la bande en carton 16 avec la bande de membrane 17 par encollage pour former une bande composite 21, illustré par les figures 2 et 3, est effectué de manière discontinue mais cadencée pas à pas dans la zone amont de l'unité de confection 15. Les pas sont soit déterminés par des spots imprimés ou par l'avance bande lui-même via un codeur. La découpe de la bande composite en couvercles individuels est illustrée par la figure 5. L'avance d'un couvercle à un premier poste de scellage 4 entraîne une demande de séquence d'assemblage d'un pas de bande en carton 16 avec une membrane. Ainsi, l'intervalle de temps entre la fabrication de la structure du couvercle à plat et le formage du couvercle dans l'unité de scellage peut être maitrisé. Ceci est avantageux pour l'étape de formage/scellage du couvercle, car la colle liant la membrane au couvercle n'a pas assez de temps pour complètement sécher. Ainsi, lors du formage du couvercle dans les outils de scellage 7 réalisant le passage d'une découpe plane à un couvercle formé avec jupe verticale, la membrane peut glisser relativement au couvercle. Ceci permet d'une part d'éliminer la présence d'air entre couvercle et membrane et d'autre part, de limiter les contraintes de formage sur les matériaux. En effet, s'il y avait trop d'air entre le couvercle et la membrane, la température des tampons de scellage dilaterait l'air présent entre le couvercle et la membrane de sorte qu'en sortie de la machine, le couvercle serait gonflé et la boite non conforme au cahier des charges. La limitation des contraintes de formage entre couvercle et membrane permet également de limiter la présence de plis, susceptibles d'entraîner une non étanchéité du scellage et de limiter l'étirement et donc la fragilisation, voire la rupture, des films complexes de type PE, OPP, PET, aluminium... formant la barrière de l'emballage vis-à-vis de l'humidité, de l'air. La limitation des contraintes de formage limite aussi la déformation d'une éventuelle languette et de sa découpe située sur la partie verticale de la jupe après le formage du couvercleThe assembly of the cardboard strip 16 with the membrane strip 17 by gluing to form a composite strip 21, illustrated by the figures 2 and 3 , is carried out discontinuously but clocked step by step in the upstream area of the garment unit 15. The steps are either determined by printed spots or by the tape feed itself via an encoder. The cutting of the composite strip into individual covers is illustrated by the figure 5 . Advancing a cover to a first sealing station 4 leads to a request for an assembly sequence for a pitch of cardboard strip 16 with a membrane. Thus, the time interval between the manufacture of the structure of the flat cover and the forming of the cover in the sealing unit can be controlled. This is advantageous for the lid forming / sealing step, since the adhesive bonding the membrane to the lid does not have enough time to completely dry. Thus, during the forming of the cover in the sealing tools 7 making the transition from a planar cut to a cover formed with a vertical skirt, the membrane can slide relative to the cover. This allows on the one hand to eliminate the presence of air between the cover and the membrane and on the other hand, to limit the forming constraints on the materials. Indeed, if there was too much air between the cover and the membrane, the temperature of the sealing pads would expand the air present between the cover and the membrane so that at the exit of the machine, the cover would be inflated and the box does not comply with the specifications. The limitation of the forming constraints between the cover and the membrane also makes it possible to limit the presence of folds, capable of causing non-sealing of the seal and of limiting the stretching and therefore the embrittlement, even the rupture, of complex films of PE type, OPP, PET, aluminum ... forming the packaging barrier against humidity, air. The limitation of the forming constraints also limits the deformation of a possible tongue and of its cutout situated on the vertical part of the skirt after the forming of the cover.

Pour des raisons de souplesse, la liaison du dispositif d'assemblage au poste de découpe des couvercles inclue un brin mou 23. La bande composite réalisée peut alors être continue et sans tension entre l'assemblage et la découpe du couvercle, les deux postes sont mécaniquement indépendants.For flexibility reasons, the connection of the assembly device to the station for cutting the covers includes a soft strand 23. The composite strip produced can then be continuous and without tension between the assembly and the cutting of the cover, the two stations are mechanically independent.

La maitrise du séchage de la colle est contrôlée par plusieurs facteurs. Ces facteurs sont le temps de prise de la colle, les colles à base d'eau ayant des temps de séchage compris entre 20 secondes et trois minutes, la distance entre le poste de collage couvercle/membrane et la cadence de la machine. En cas d'arrêt prolongé de la machine, les couvercles présents entre le poste de collage et le formage peuvent être purgés de manière automatique ou manuelle.The control of the glue drying is controlled by several factors. These factors are the adhesive setting time, the water-based adhesives having drying times between 20 seconds and three minutes, the distance between the cover / membrane bonding station and the speed of the machine. In the event of prolonged machine shutdown, the covers between the gluing station and the forming can be purged automatically or manually.

De plus, le composite 21 est fabriqué directement sur la machine, donc pas de stockage du produit fini, consommation à la demande donc pas de gâche, pas de machine spéciale pour faire ce travail, donc, globalement, un gain de coût.In addition, the composite 21 is manufactured directly on the machine, therefore no storage of the finished product, consumption on demand therefore no waste, no special machine to do this work, therefore, overall, a cost saving.

Si la distance entre le collage des couvercles et le formage des couvercles est très importante et qu'un séchage de la colle est inévitable, il est possible d'utiliser des colles à réversibilité thermique. Dans ce cas, la liaison entre le couvercle et la membrane sera momentanément limitée ou réduite par la chaleur du tampon de formage du couvercle.If the distance between the bonding of the covers and the forming of the covers is very great and drying of the adhesive is inevitable, it is possible to use adhesives with thermal reversibility. In this case, the connection between the cover and the membrane will be temporarily limited or reduced by the heat of the cover forming pad.

Ce mode de confection de couvercles à deux composantes est également utilisable pour la fabrication de fonds. En effet, pour des raisons économiques ou techniques, il peut être judicieux de réaliser un complexage de carton et de matériaux barrière/scellant pour un fonds en utilisant la même méthode. Un fond peut alors être créé en ligne avec divers matériaux. On profite alors de l'avantage de la limitation des contraintes mécaniques décrite ci-dessus pour améliorer l'étanchéité des boites.This method of making two-component covers is also usable for the manufacture of bottoms. Indeed, for economic or technical reasons, it may be wise to make a lamination of cardboard and barrier / sealant materials for a fund using the same method. A background can then be created online with various materials. We then take advantage of the advantage of the limitation of mechanical stresses described above to improve the tightness of the boxes.

Système d'encollage de précision de la bande de membrane sur la bande de carton.Precision gluing system for the membrane strip on the cardboard strip.

Comme le montrent les figures 2 et 3, la bande de carton 16 est tractée par un dispositif de rouleaux motorisés avance bande 19. Ce dispositif entraîne à la fois la bande de carton 16 et celle de la membrane 17. Les deux bandes sont alors synchronisées en avance. Pour réaliser un couvercle, il faut lier les deux bandes par un collage.
Pour appliquer la colle avec une grande précision et une grande fiabilité, le mode d'exécution illustré par la figure 3 est exécuté en plusieurs étapes.
La première étape, optionnelle, consiste à réaliser une mise en relief 24 de la bande de carton par une presse pneumatique, hydraulique ou électrique. La partie centrale reste plane, mais la zone de dépose de la colle est légèrement surélevée. Ainsi, quand on dépose le film de colle, celui-ci est localisé au-dessus de la partie centrale. Quand couvercle et membrane vont être rassemblés par l'avance, la colle ne va pas frotter la membrane et s'étaler vers le centre.As the figures 2 and 3 , the cardboard strip 16 is towed by a device for motorized rollers advancing the strip 19. This device drives both the cardboard strip 16 and that of the membrane 17. The two strips are then synchronized in advanced. To make a cover, you must link the two strips by gluing.
To apply the glue with great precision and reliability, the embodiment illustrated by figure 3 is executed in several stages.
The first step, optional, consists in making a relief 24 of the cardboard strip by a pneumatic, hydraulic or electric press. The central part remains flat, but the glue deposit area is slightly raised. Thus, when the adhesive film is deposited, it is located above the central part. When the cover and membrane are assembled in advance, the glue will not rub the membrane and spread out towards the center.

Un film de colle d'épaisseur 0.2 à 0.5 mm est déposé sur la partie intérieure de la bande de couvercle/carton opposée à l'impression par deux empreintes 25, une pour chaque piste de la bande, via un mouvement de translation faisant passer les empreintes 25 d'un bac de colle 26 jusqu'au contact avec la bande de carton. Ce mouvement est assuré par un vérin pneumatique électrique, hydraulique ou par la transformation d'un mouvement de rotation, bielle/manivelle par exemple. Chaque empreinte retourne ensuite dans le bac à colle pour se recharger de colle. La forme du film de colle ainsi déposé est la même que l'empreinte. Pour une boite ronde, la forme de l'empreinte est un anneau avec des diamètres respectivement légèrement supérieur au diamètre intérieur de la boite et légèrement supérieur au diamètre de découpe du couvercle.A film of glue 0.2 to 0.5 mm thick is deposited on the inner part of the cover / cardboard strip opposite the printing by two impressions 25, one for each track of the strip, via a translational movement passing the impressions 25 of a glue tank 26 until contact with the cardboard strip. This movement is ensured by an electric, hydraulic pneumatic cylinder or by the transformation of a rotational movement, connecting rod / crank for example. Each impression then returns to the glue tank to refill with glue. The shape of the adhesive film thus deposited is the same as the impression. For a round box, the shape of the imprint is a ring with diameters respectively slightly greater than the inside diameter of the box and slightly greater than the diameter of the lid cutout.

La pose de la colle doit être effectuée avec une grande précision. D'une part pour que la membrane et le couvercle restent parfaitement liés lors de la découpe, d'autre part pour que la colle ne se disperse pas vers l'intérieur de couvercle. La colle doit aussi être présente à l'extérieur de la découpe du couvercle pour lier la bande membrane à la bande couvercle du squelette de découpe, pour faciliter le fonctionnement du dispositif d'extraction du squelette. Cependant, s'il est indispensable d'avoir de la colle à l'extérieur de la découpe, il faut aussi éviter que la colle ne se disperse trop vers l'extérieur de la bande. En effet, la largeur de la bande étant optimisée pour limiter les coûts, la distance entre la colle et les extrémités des bandes est très faible. Si la colle venait à déborder sur les flancs du composite couvercle/membrane, les éléments en contact avec la bande composite seraient rapidement pollués par la colle (avance-bande pour le collage, la découpe, l'extraction ainsi que les éléments de guidage, poinçon matrice de découpe et outil de formage/scellage). Ceci peut provoquer des arrêts de production ainsi que des réclamations des utilisateursThe installation of the adhesive must be carried out with great precision. On the one hand so that the membrane and the cover remain perfectly bonded during cutting, on the other hand so that the glue does not disperse towards the inside of the cover. The glue must also be present on the outside of the cover cutout to bond the membrane strip to the cover strip of the cutout skeleton, to facilitate the operation of the skeleton extraction device. However, if he is essential to have glue on the outside of the cut, it is also necessary to prevent the glue from dispersing too much towards the outside of the strip. Indeed, the width of the strip being optimized to limit costs, the distance between the adhesive and the ends of the strips is very small. If the adhesive were to overflow on the sides of the composite cover / membrane, the elements in contact with the composite strip would be quickly polluted by the adhesive (tape advance for bonding, cutting, extraction as well as the guide elements, die cutting die and forming / sealing tool). This can cause production stoppages as well as user complaints

C'est au pas suivant que la bande de membrane vient au contact de la bande de carton et qu'elle est liée au futur couvercle avec la colle par un système de presseurs. A ce moment-là, un composite couvercle/membrane est créé. Pour lier le composite, c'est-à-dire pour que la membrane et le couvercle soient suffisamment liés, il faut exercer une pression sur le couvercle sur la zone préalablement encollée. Pour éviter les dispersions de colle vers le centre du couvercle, un poinçon 27 très fin vient en premier lieu isoler la partie intérieure du couvercle à un diamètre légèrement inférieur au diamètre de l'empreinte de colle par pression sur les bandes de couvercle et membrane. Un autre poinçon 28 vient ensuite jouer le même rôle pour la partie extérieure du couvercle avec un diamètre légèrement supérieur au diamètre de l'empreinte de colle. Un presseur 29 situé entre les deux poinçons 27,28 peut ensuite comprimer la colle pour lier les deux bandes. La colle s'étale uniquement entre les deux poinçons.It is at the next step that the membrane strip comes into contact with the cardboard strip and that it is linked to the future cover with the adhesive by a system of pressers. At this time, a cover / membrane composite is created. To bond the composite, that is to say so that the membrane and the cover are sufficiently bonded, it is necessary to exert a pressure on the cover on the previously glued area. To avoid dispersion of glue towards the center of the lid, a very fine punch 27 firstly insulates the inner part of the lid to a diameter slightly less than the diameter of the adhesive imprint by pressing on the lid and membrane strips. Another punch 28 then plays the same role for the outer part of the cover with a diameter slightly greater than the diameter of the adhesive imprint. A presser 29 located between the two punches 27, 28 can then compress the glue to bond the two strips. The glue spreads only between the two punches.

Pour une bonne gestion du cycle d'encollage, l'encollage doit être suivi d'une avance d'un pas de la bande, le presseur étant agencé un pas après la dépose de la colle. Ainsi, chaque fois que la colle est déposée sur la bande, la membrane et le couvercle sont liés immédiatement par le presseur. En cas d'arrêt de production, la colle ne peut donc pas sécher sur la bande de carton et ainsi rendre la liaison entre le couvercle et la membrane impossible ni ajouter une surépaisseur au composite couvercle/membrane constituée par un film de colle pas encore comprimé par le presseur et donc en relief. Ceci assure une production à la demande et en ligne des structures obturantes couvercle/membrane.For good management of the gluing cycle, gluing must be followed by a step forward of the strip, the presser being arranged one step after the glue has been removed. Thus, each time the adhesive is deposited on the strip, the membrane and the cover are immediately linked by the presser. In the event of production stoppage, the adhesive cannot therefore dry on the cardboard strip and thus make the connection between the cover and the membrane impossible or add an additional thickness to the cover / membrane composite constituted by a film of adhesive not yet compressed by the presser and therefore in relief. This ensures on-demand and online production of the cover / membrane sealing structures.

Ce procédé d'encollage est applicable à la confection de fonds. Toutefois dans ce cas, l'étape de mise en relief du couvercle n'est pas nécessaire car il n'y aura pas de séparation du complexe à postériori. Dans le cas où la partie carton du fond n'est pas imprimée, l'arrêt de l'avance n'est plus faite par la lecture d'un spot imprimé, mais par une avance pas à pas. On procède alors, sur la bande en carton, à la perforation d'un trou. Ce trou est relatif au positionnement de la bande sur l'unité de confection par rapport à l'encollage et aux autres opérations. Ce trou est ensuite utilisé comme un spot pour piloter l'arrêt de l'avance-bande de découpe. Il est alors possible d'utiliser des cartons non imprimés et donc moins chers tout en ayant la fonction de séparation des postes d'unité couvercle/fond et de découpe du couvercle/fond.This gluing process is applicable to making funds. However, in this case, the step of highlighting the cover is not necessary since there will be no separation of the complex a posteriori. In the case where the cardboard part of the background is not printed, the advance is no longer stopped by reading a printed spot, but by a step-by-step advance. We then proceed to punch a hole on the cardboard strip. This hole relates to the positioning of the strip on the garment unit with respect to gluing and other operations. This hole is then used as a spot to control the stop of the cutting strip advance. It is then possible to use non-printed and therefore cheaper cartons while having the function of separating the cover / bottom unit posts and cutting the cover / bottom.

Dispositifs d'entraînement de précision pour l'entrainement pas à pas des bandes dans l'unité de confection des couvercles, la découpe du couvercle et extraction du squelette.Precision training devices for the step-by-step training of the strips in the cover-making unit, cutting of the cover and extraction of the skeleton.

Ce dispositif d'avance bande illustré par la figure 4 utilise un mécanisme composé de deux rouleaux d'entraînement de même diamètre. Un servomoteur 34 actionne un des deux rouleaux 31, le rouleau non motorisé 32 est entrainé par le rouleau motorisé 31 via un pignon 33 ou une courroie. Les deux rouleaux sont alors entrainés de manière parfaitement synchronisée ce qui améliore la précision de chaque avance, notamment à l'arrêt de l'avance sur le spot imprimé. Cette précision permet de respecter parfaitement le centrage des bandes par rapport aux spots lors des différentes opérations réalisées sur un couvercle, une membrane ou un fond.This belt advance device illustrated by the figure 4 uses a mechanism composed of two drive rollers of the same diameter. A servomotor 34 actuates one of the two rollers 31, the non-motorized roller 32 is driven by the motorized roller 31 via a pinion 33 or a belt. The two rollers are then driven in perfectly synchronized manner which improves the precision of each advance, in particular when the advance is stopped on the printed spot. This precision makes it possible to perfectly respect the centering of the strips relative to the spots during the various operations carried out on a cover, a membrane or a bottom.

-Découpe des couvercles en décalé.- Cutting of the lids offset.

L'objectif est d'utiliser une bande de couvercle imprimée à double pistes, optimisée en largeur et en pas, limitant ainsi la quantité de matière non directement utilisée dans la fabrication de l'emballage. Ce pas de découpe est imposé par une variable économique. En effet, pour optimiser le coût des bandes de carton, et autres partie du composite, les distances entre couvercles voisins ainsi que la laize de la bande doivent être réduits au maximum, la surface du squelette de découpe n'étant pas valorisée dans le produit fini. Le pas peut également être imposé par les machines d'impression des fournisseurs. L'angle de découpe en décalée est alors fonction du pas des spots et de la largeur des bandes utilisées. Avec cette méthode de découpe de deux couvercles 35,36 décalés d'un pas Pb de la bande, on obtient un pas de découpe Pd de l'ordre de grandeur de environ 1.4*Pb, de sorte qu'on a plus d'espace pour placer les outils liés à la découpe et au transfert du couvercle.The objective is to use a printed cover strip with double tracks, optimized in width and in pitch, thus limiting the amount of material not directly used in the manufacture of the packaging. This cutting step is imposed by an economic variable. Indeed, to optimize the cost of the cardboard strips, and other parts of the composite, the distances between neighboring covers as well as the width of the strip must be reduced as much as possible, the surface of the cutting skeleton not being valued in the product. finished. The pitch can also be imposed by the printing machines of the suppliers. The offset cutting angle is then a function of the pitch of the spots and the width of the strips used. With this method of cutting two covers 35,36 offset by a pitch Pb of the strip, a cutting pitch Pd of the order of magnitude of about 1.4 * Pb is obtained, so that there is more space to place the tools related to cutting and transferring the cover.

Les outils de découpe sont en soi connus de l'homme du métier. On notera que les poinçons de matrice des outils de découpe peuvent déborder latéralement de la bande composite.Cutting tools are known per se to those skilled in the art. It will be noted that the die punches of the cutting tools can extend laterally from the composite strip.

Système de transfert à variation de pas des couvercles découpés vers les outils de formage/scellagePitch variation transfer system from cut covers to forming / sealing tools

Une fois découpés, les couvercles ou fonds doivent être transférés dans les outils de scellage du couvercle (ou fond). Or, le pas des outils de scellage Po n'est pas forcément le même que le pas de découpe Pd, par le fait que pour des raisons de flexibilité des opérations, les changements de format (diamètre ou forme) doivent être rapides et à coût d'outillage limité. Le pas des outils Po est de ce fait la résultante d'une optimisation pour un panel de formats. Cette différence entre le pas de découpe Pd et le pas constant des outils Po impose une solution de mise au pas Po par le système de transfert, des couvercles une fois découpésOnce cut, the lids or bottoms must be transferred to the sealing tools for the lid (or bottom). However, the pitch of the sealing tools Po is not necessarily the same as the cutting pitch Pd, by the fact that for reasons of flexibility of the operations, the format changes (diameter or shape) must be rapid and at a cost. limited tooling. The pitch of the Po tools is therefore the result of an optimization for a panel of formats. This difference between the cutting pitch Pd and the constant pitch of the tools Po imposes a solution of pitching Po by the transfer system, the covers once cut

Les figures 8 et 9 illustrent deux cas où respectivement Pd<Po et Pd>Po. Le mouvement de ce dispositif de transfert est assuré par un actionneur linéaire 37, pneumatique, électrique ou autre, assurant un mouvement rectiligne. L'angle de transfert est réalisé par le mouvement des deux coulisseaux de transfert 38, qui eux, ont un déplacement transversal. Ainsi, en cas de changement de format, il faut simplement changer le bloc de découpe en quinconce et de transfert à pas variable (fixation rapide), la variable d'ajustement au changement de format, et donc cet angle de transfert. Pour pallier les éventuelles imprécisions de position du couvercle sur un coulisseau de transfert, celui-ci est équipé d'une lamelle sous vide 39. Cette lamelle va jouer un double rôle. Le premier est de maintenir le couvercle sur le système de transfert, c'est-à-dire le coulisseau. Le second est de laisser la possibilité au couvercle de se déplacer légèrement quand le couvercle rentre dans l'outil de formage scellage. Ainsi, le couvercle peut se centrer librement dans l'outil de formage scellage (autocentrage).The figures 8 and 9 illustrate two cases where Pd <Po and Pd> Po respectively. The movement of this transfer device is ensured by a linear actuator 37, pneumatic, electric or other, ensuring a rectilinear movement. The transfer angle is achieved by the movement of the two transfer slides 38, which themselves have a transverse movement. Thus, in the event of a format change, you simply have to change the staggered cutting block and transfer with variable pitch (quick fixing), the adjustment variable for format change, and therefore this transfer angle. To overcome any inaccuracies in the position of the cover on a transfer slide, the latter is equipped with a vacuum slide 39. This slide will play a double role. The first is to keep the cover on the transfer system, that is to say the slide. The second is to allow the cover to move slightly when the cover enters the sealing forming tool. Thus, the cover can center freely in the sealing forming tool (self-centering).

Exemple : la machine est optimisée pour traiter des boites de 30 à 125 mm de diamètre ainsi que d'autres formes non rondes mais à périmètres équivalents. Le pas de découpe est de 141.42 mm (2 diamètres 90 découpés), le pas des outils de formage/scellage du couvercle (ou fond) est de 132 mm et la distance entre le point de découpe et le centre de l'outil de formage/scellage est de 200 mm. Le dispositif de transfert doit alors avoir un angle de transfert de 2.7° pour effectuer cette transition. Example : the machine is optimized to process boxes from 30 to 125 mm in diameter as well as other non-round shapes but with equivalent perimeters. The cutting pitch is 141.42 mm (2 diameters 90 cut), the pitch of the forming / sealing tools for the cover (or bottom) is 132 mm and the distance between the cutting point and the center of the forming tool / sealing is 200 mm. The transfer device must then have a transfer angle of 2.7 ° to effect this transition.

Système de sortie du squelette de découpe.Cutting skeleton exit system.

Ce système compact permet de fiabiliser la sortie du squelette de bande en tirant dessus avec un dispositif de traction par rouleaux 19 tel que décrit ci-dessus, agencé en aval de la découpe, reproduisant instantanément le mouvement de l'avance bande 19 de la bande composite en amont de la découpe. Ceci permet de sortir le squelette du poste de découpe de manière fiable, et ce, même si pour des raisons de place, la trajectoire de sortie du squelette, dont la figure 6 illustre deux variantes, est complexe, et d'améliorer la précision de positionnement des couvercles, ou des fonds, sous le poste de découpe. Cette amélioration de la précision est due au fait que la bande reste tendue sous le poste de découpe. On évite ainsi la formation de vague(s) à l'avant de l'avance-bande en amont de la découpe des couvercles, situé relativement loin derrière la position de découpe à cause du système de découpe en diagonale. Pour assurer une tension suffisante sans pour autant casser le squelette fragile de la bande, celle-ci est retendue par l'avance-bande d'extraction du squelette après l'exécution de chaque avance et avant chaque découpe. Ce mouvement de tension est important car le rendement global entre les deux avances-bandes ainsi que le parcours de la bande de squelette est soumis à un rendement variable, dû au coefficient de frottement variable, à la tolérance d'usinage entre les 2 avances bandes, etc... Cette fonction est assurée par une micro avance calibrée par le servomoteur d'extraction. L'arrêt de cette micro avance est piloté par un couple constant ou une temporisation.This compact system makes the exit of the strip skeleton more reliable by pulling on it with a roller traction device 19 as described above, arranged downstream of the cut, instantly reproducing the movement of the strip advance 19 of the strip. composite upstream of cutting. This allows the skeleton to be removed from the cutting station in a reliable manner, even if for reasons of space, the path of exit of the skeleton, including the figure 6 illustrates two variants, is complex, and improves the positioning accuracy of the covers, or bottoms, under the cutting station. This improvement in precision is due to the fact that the strip remains taut under the cutting station. We thus avoid the formation of wave (s) at the front of the tape advance upstream of the cutting of the covers, situated relatively far behind the cutting position because of the diagonal cutting system. To ensure sufficient tension without breaking the fragile skeleton of the strip, the latter is stretched by the skeleton extraction advance strip after the execution of each advance and before each cutting. This tension movement is important because the overall yield between the two band feeds and the path of the skeleton band is subject to a variable yield, due to the variable friction coefficient, to the machining tolerance between the 2 band feeds , etc ... This function is ensured by a micro advance calibrated by the extraction servomotor. The stopping of this micro advance is controlled by a constant torque or a time delay.

Dispositif de séparation des couches du squeletteDevice for separating the skeleton layers

Le squelette issu de la découpe du couvercle est, comme précédemment décrit, un composite. Dans certains cas, l'une ou l'autre partie de ce composite peut être composée de matériaux "nobles", pure cellulose ou aluminium par exemple. Pour la valorisation des déchets, il peut être rentable de séparer les matériaux fortement valorisés des éléments moins valorisés. Pour ce faire, la machine peut être équipée d'un séparateur bande de matériaux cellulosiques/bande de membrane après extraction. On ajoute un avance-bande 19' après celui d'extraction 19 du squelette, fonctionnant selon le même principe. Un dispositif de séparation des bandes 40 illustré schématiquement sur la figure 7 est placé entre ces deux avances bandes. Seule l'une des deux bandes est tractée par le dernier avance-bande 19'. Les bandes sont ainsi séparées, la maîtrise de l'encollage du couvercle permettant une séparation aisée. Chaque élément est alors récupéré dans différents containers.The skeleton resulting from the cutting of the cover is, as previously described, a composite. In certain cases, one or the other part of this composite can be composed of "noble" materials, pure cellulose or aluminum for example. For the recovery of waste, it can be profitable to separate the highly valued materials from the less valued elements. To do this, the machine can be equipped with a separator band of cellulose materials / membrane band after extraction. A tape advance 19 'is added after that of extraction 19 of the skeleton, operating on the same principle. A strip separation device 40 illustrated schematically on the figure 7 is placed between these two tape feeds. Only one of the two bands is pulled by the last band advance 19 '. The strips are thus separated, the control of the gluing of the cover allowing easy separation. Each element is then collected in different containers.

Tampon de formage/scellageForming / sealing pad

Il est avantageux d'évacuer l'air situé entre les couches formant le composite couvercle/membrane. Les tampons de formage/scellage selon l'invention ont une conception favorisant cela, illustrée sur la figure 10. Une interface conique 9 permet de créer un appui au centre de la couche en carton 44 du couvercle pour canaliser la circulation d'air du centre du couvercle, vers la jupe puis vers l'extérieur, comme montré par les flèches sur la figure 10. La différence entre les parties chaudes et les parties froides de l'outil peut dépasser 50°C. La partie chaude 45 de l'outil de scellage est isolée de l'interface conique 9 par un montage approprié de celle-ci sur le support 47 du tampon, lui-même isolé de la partie chaude 45 par un matériau isolant 46. La température sur l'interface d'appui 9 est alors limitée, l'impression du couvercle n'est donc pas altérée par la chaleur (pas de réactivation des encres et des vernis). Le support 47 de l'outil est ajouré pour laisser l'air chaud sortir vers l'extérieur. En augmentant le temps de scellage du couvercle (entre 1.5 et 20 sec) on peut diminuer la température de scellage. La diminution de la température de scellage évite de fragiliser les films barrières 42 du corps tubulaire et films scellants 43 du couvercle. De plus la couche cartonnée 41 du corps tubulaire et la jupe du couvercle étant soumis à une forte pression par le module de contre scellage 58, la cohésion entre les films scellants du corps 42 de la boite et de la membrane 43 a plus de temps pour se faire de manière homogène sans être dégradées par une forte température. L'étanchéité des boites et la résistance du couvercle s'en trouvent améliorées. L'évacuation de l'air est réalisée non seulement pendant le formage du couvercle mais également pendant la phase statique du scellage (tampon en position basse dans le couvercle et couvercle dans sa position définitive dans la boite). Le même procédé est applicable au scellage d'un fond simple ou composite.It is advantageous to evacuate the air located between the layers forming the cover / membrane composite. The forming / sealing pads according to the invention have a design favoring this, illustrated on the figure 10 . A conical interface 9 makes it possible to create a support at the center of the cardboard layer 44 of the cover to channel the air circulation from the center of the cover, towards the skirt then towards the outside, as shown by the arrows on the figure 10 . The difference between the hot and cold parts of the tool can exceed 50 ° C. The hot part 45 of the sealing tool is isolated from the conical interface 9 by an appropriate mounting of the latter on the support 47 of the tampon, itself isolated from the hot part 45 by an insulating material 46. The temperature on the support interface 9 is then limited, the printing of the cover is therefore not altered by heat (no reactivation of the inks and varnishes). The support 47 of the tool is perforated to let the hot air come out. By increasing the sealing time of the cover (between 1.5 and 20 sec) the sealing temperature can be reduced. The decrease in the sealing temperature avoids weakening the barrier films 42 of the tubular body and seal films 43 of the cover. Furthermore, the cardboard layer 41 of the tubular body and the skirt of the cover being subjected to high pressure by the back-sealing module 58, the cohesion between the sealing films of the body 42 of the box and of the membrane 43 has more time for be homogeneous without being degraded by a high temperature. The tightness of the boxes and the resistance of the cover are thereby improved. The air is evacuated not only during the forming of the cover but also during the static sealing phase (buffer in the low position in the cover and cover in its final position in the box). The same process is applicable to the sealing of a simple or composite bottom.

Dispositif de formage des couvercles à course variable (figure 11)Device for forming covers with variable stroke (figure 11)

La précision de la profondeur des couvercles (ou fonds) dans une boite est capitale pour la conformité du produit fini. La profondeur de position des couvercles peut varier selon les boîtes pour différentes raisons. Afin de résoudre ce problème d'ajustement de la profondeur, la machine est équipée de deux systèmes de formage/scellage 7 indépendants à course programmable pour chaque paire de poste de formage 4. Grâce au registre du plateau de scellage 3, l'automate sait quel outil 7 est à l'instant t au poste de formage/scellage du couvercle. On peut attribuer au système de formage une course pour chaque outil. Cette course peut être modifiée à tout moment par un opérateur, suite à un contrôle de profondeur. La profondeur peut aussi être réglée de manière dynamique par la mesure des profondeurs des couvercles sortants du poste de scellage. Cette mesure est réalisée par un capteur approprié, l'affiliation couvercle/outil est faite par le registre de l'automate. L'automate peut alors donner aux outils de formage les courses appropriées pour chaque outil, dans un seuil de tolérance pré déterminé.The accuracy of the depth of the lids (or bottoms) in a box is essential for the conformity of the finished product. The position depth of the covers may vary from box to box for various reasons. In order to solve this problem depth adjustment, the machine is equipped with two independent forming / sealing systems 7 with programmable stroke for each pair of forming station 4. Thanks to the register of the sealing plate 3, the machine knows which tool 7 is to time t at the cover forming / sealing station. The forming system can be assigned a stroke for each tool. This stroke can be modified at any time by an operator, following a depth check. The depth can also be adjusted dynamically by measuring the depths of the outgoing covers from the sealing station. This measurement is carried out by an appropriate sensor, the cover / tool affiliation is made by the register of the PLC. The automaton can then give the forming tools the appropriate strokes for each tool, within a pre-determined tolerance threshold.

Dispositif de prédécoupe des couverclesDevice for pre-cutting covers

Ce dispositif de l'unité de finition, dont un mode d'exécution est illustré par la figure 12, sert à réaliser une prédécoupe précise sur un couvercle et utilise un couteau de découpe circulaire. La boite rentre dans un mandrin 48 appelé mandrin de prédécoupe. Le couteau 50 monté sur un support mobile 49 plonge ensuite sur la boite traversant toutes les couches 41,42 du corps de la boite et de la membrane 43 du couvercle. Une butée fixe 51 limite sa plongée pour qu'il ne traverse pas la couche en carton 44 du couvercle. La position de plongée du couteau est située sur la jupe verticale du composite couvercle/membrane et en dessous de la surface de colle liant la membrane au couvercle préalablement scellé par l'unité de scellage 2 de la machine. Le mandrin 48 effectue ensuite une rotation pour découper totalement ou partiellement le périmètre de la boite. Le mandrin 48 et le couteau 50 sont liés par une transmission mécanique ou par un axe virtuel. Dans le premier cas, un servomoteur 52 entraîne le mandrin de prédécoupe; dans l'autre cas, un servomoteur supplémentaire entraîne le couteau. Afin d'utiliser des couteaux standards avec un diamètre standard du marché, on établit une synchronisation des vitesses tangentielles entre le couteau 50 et le corps 41 de la boite. Cette synchronisation est soit obtenue par une transmission mécanique, par chaine ou courroie, dont le rapport de réduction ou de multiplication est le même que le rapport entre le diamètre du mandrin de prédécoupe 48 et le diamètre du couteau 50, soit par une interpolation en rotation des deux servomoteurs du mandrin de prédécoupe et du couteau, dont les vitesses respectives sont coordonnées à la réduction ou multiplication boite/couteau. Par exemple, avec une boite de diamètre 100 mm et un couteau de diamètre 100mm le rapport est de 1 ; pour un mandrin de prédécoupe de 50mm et un couteau de 100 mm de diamètre, le rapport de réduction est de 2, la boite tournant alors deux fois plus vite que le couteau en ce qui concerne le nombre de tours par minute.This device of the finishing unit, an embodiment of which is illustrated by the figure 12 , is used to make a precise precut on a cover and uses a circular cutting knife. The box fits into a mandrel 48 called a precut mandrel. The knife 50 mounted on a movable support 49 then plunges onto the box passing through all the layers 41, 42 of the body of the box and of the membrane 43 of the cover. A fixed stop 51 limits its diving so that it does not pass through the cardboard layer 44 of the cover. The diving position of the knife is located on the vertical skirt of the cover / membrane composite and below the surface of adhesive bonding the membrane to the cover previously sealed by the sealing unit 2 of the machine. The mandrel 48 then rotates to completely or partially cut the perimeter of the box. The mandrel 48 and the knife 50 are linked by a mechanical transmission or by a virtual axis. In the first case, a servomotor 52 drives the precut mandrel; in the other case, an additional servomotor drives the knife. In order to use standard knives with a standard market diameter, a tangential speed synchronization is established between the knife 50 and body 41 of the box. This synchronization is either obtained by a mechanical transmission, by chain or belt, the reduction or multiplication ratio of which is the same as the ratio between the diameter of the pre-cut mandrel 48 and the diameter of the knife 50, or by rotation interpolation of the two servomotors of the precut mandrel and the knife, the respective speeds of which are coordinated with the reduction or multiplication of the box / knife. For example, with a 100mm diameter box and a 100mm diameter knife the ratio is 1; for a 50mm pre-cut mandrel and a 100mm diameter knife, the reduction ratio is 2, the gearbox then rotating twice as fast as the knife with regard to the number of revolutions per minute.

Au long de son périmètre extérieur, le fil du couteau peut être volontairement altéré par suppression locale 53 du fil de coupe conservant ainsi un lien entre le couvercle et la boite pour créer des points d'attache plus ou moins épais sur la boite, qui servent alors de points d'inviolabilité 54. Dans ce cas, l'ouverture du couvercle se fera après la rupture des points d'attache 54. Une charnière d'ouverture 55 peut aussi être réalisée selon le même principe. Dans ce cas, l'altération du fil de coupe 56 est plus grande. Le couvercle reste alors lié au corps après l'ouverture. On peut également obtenir une charnière en faisant une découpe incomplète de la boite en effectuant moins d'un tour avec le mandrin de prédécoupe.Along its outer perimeter, the knife wire can be deliberately altered by local removal 53 of the cutting wire thus maintaining a link between the cover and the box to create more or less thick attachment points on the box, which serve then tamper-evident points 54. In this case, the lid will be opened after the attachment points 54 have broken. An opening hinge 55 can also be produced according to the same principle. In this case, the alteration of the cutting line 56 is greater. The cover then remains linked to the body after opening. You can also obtain a hinge by making an incomplete cut out of the box by making less than one turn with the pre-cut mandrel.

La précision de la prédécoupe devant être élevée, pour ne pas traverser la partie couvercle du composite membrane/couvercle, et répétitive, un capteur d'origine est placé sur le porte couteau. Après chaque cycle de découpe, le couteau revient à sa position initiale. Ainsi, on utilise toujours la même partie du fil de coupe par rapport au mandrin de prédécoupe. L'usure du couteau est alors plus homogène et facilement rattrapable par la réduction de l'entraxe entre le mandrin de prédécoupe et le couteau quand celui-ci est en plongée. De plus, grâce à ce capteur, les points d'attache peuvent toujours être au même endroit par rapport au mandrin. Dans ce cas, si l'on oriente préalablement, lors du passage dans un poste de travail antérieur, les boites par rapport au graphisme via un spot imprimé sur l'étiquette du corps, on peut alors placer les points d'attache et surtout la charnière précisément par rapport aux indications d'ouverture imprimées sur le corps de la boite. Une autre option d'orientation est de positionner le couvercle rapporté par rapport à un repère situé sur ce même couvercle.The precision of the precut must be high, so as not to pass through the cover part of the membrane / cover composite, and repetitively, an original sensor is placed on the knife holder. After each cutting cycle, the knife returns to its initial position. Thus, the same part of the cutting line is always used relative to the precut mandrel. The wear of the knife is then more homogeneous and easily compensated by the reduction of the distance between the pre-cut mandrel and the knife when the latter is plunged. In addition, thanks to this sensor, the attachment points can always be in the same place relative to the mandrel. In this case, if the boxes are oriented beforehand, when passing through a previous workstation, in relation to the graphics via a spot printed on the body label, we can then place the attachment points and especially the hinge precisely in relation to the opening indications printed on the body of the box. Another orientation option is to position the attached cover with respect to a mark located on the same cover.

Afin de ne pas entraîner de rupture des points d'attache par la pression exercée par le cône du couteau de découpe, un appui est réalisé sur le sommet de la boite par un module de précontrainte 57,mobile en translation, précontraint par des ressorts. Cette précontrainte de la boite stabilise également celle-ci, empêchant le fil de coupe du couteau de faire bouger la boite le long de l'axe de rotation. La jonction de la prédécoupe est alors parfaite.In order not to cause breakage of the attachment points by the pressure exerted by the cone of the cutting knife, a support is made on the top of the box by a prestressing module 57, movable in translation, prestressed by springs. This prestressing of the box also stabilizes it, preventing the cutting line of the knife from moving the box along the axis of rotation. The junction of the precut is then perfect.

Ce dispositif, décrit ci-dessus pour des boites circulaires, est adaptable pour des boites non rondes (ovales, carrées, rectangulaires...). Dans ce cas, la butée de plongée n'est plus fixe, mais variable en fonction de la forme du couvercle. Sa position varie par copie d'un galet tournant sur une came de forme homothétique au mandrin de coupe, le galet étant sur le référentiel du porte couteau, ou par le mouvement d'un axe électrique interpolé à la forme par programmation de celui-ci.This device, described above for circular boxes, is adaptable for non-round boxes (oval, square, rectangular ...). In this case, the diving stop is no longer fixed, but variable depending on the shape of the cover. Its position varies by copying a roller rotating on a cam of homothetic shape to the cutting mandrel, the roller being on the frame of the knife holder, or by the movement of an electric axis interpolated to the shape by programming it. .

Gestion des défauts d'avance des couvercles imprimés avec auto purge des couvercles mal imprimés ou présentant un risque de défaut.Management of printed cover advance faults with self-bleeding of improperly printed covers or those presenting a risk of failure.

Dans le cas d'utilisation de couvercles imprimés, les arrêts des avances bandes sont gérés par la lecture d'un spot imprimé par rapport à chaque impression du couvercle, par exemple par une cellule optique. Dans certains cas, il arrive que le spot soit mal imprimé ou dégradé, la lecture du spot est alors impossible. Si une avance de bande est ratée pour cause d'un spot manquant ou illisible, les bandes de couvercle et de membrane sont alors décalées par rapport à l'impression, toutes les opérations réalisées préalablement à la jonction des bandes sont aussi décalées et le couvercle résultant de l'assemblage et plusieurs couvercles à venir sont non conformes. Si ces mêmes couvercles sont insérés dans un corps de boite, c'est toute la boite qui est non conforme; ce qui représente un risque vis à vis du client final.In the case of the use of printed covers, the stops of the tape feeds are managed by reading a printed spot with respect to each printing of the cover, for example by an optical cell. In some cases, it happens that the spot is improperly printed or degraded, the reading of the spot is then impossible. If a tape feed is missed due to a missing spot or illegible, the cover and membrane strips are then offset with respect to printing, all the operations carried out prior to the joining of the strips are also offset and the cover resulting from assembly and several future covers are non-compliant. If these same covers are inserted in a box body, the whole box is non-compliant; which represents a risk to the end customer.

Pour pallier ce risque, l'automatisme de la machine est capable de gérer ce problème de manière automatique sans créer d'arrêt de ligne et de purge de bande coûteuse en temps et en matière première par le procédé Suivant : les pas (d'impression) de la bande sont constants, avec une certaine tolérance. Cette tolérance est prise en compte pour déterminer la taille de l'empreinte d'encollage ainsi que le centrage de l'impression. Si tous les arrêts de bande sont dans cette tolérance, on considère les couvercles comme corrects. On renseigne via l'interface homme/machine le pas d'impression des couvercles, on renseigne également la tolérance mini et maxi de l'avance, qui peut varier en fonction du type d'opération à réaliser sur les bandes. A chaque avance, l'automate compare la position du spot par rapport à l'avance réelle effectuée. Cette mesure est faite grâce au codeur du servomoteur d'avance-bande ou d'une roue codeuse tractée par la bande du couvercle. Si le spot est détecté avant la fin de l'avance théorique d'un pas d'impression, celle-ci est ignorée et l'avance bande s'arrête à la valeur du pas d'impression préalablement programmé. Le couvercle est alors positionné dans les tolérances. Si le spot n'est pas détecté à sa position théorique, l'avance-bande s'arrête à la valeur du pas d'impression préalablement programmé. Le couvercle est alors positionné dans les tolérances.To mitigate this risk, the machine's automation is capable of managing this problem automatically without creating a line stop and purging of tape which is costly in time and in raw material by the following process: steps (printing ) of the band are constant, with a certain tolerance. This tolerance is taken into account to determine the size of the gluing imprint as well as the centering of the print. If all the tape stops are within this tolerance, the covers are considered to be correct. The printing step of the covers is indicated via the man / machine interface, the minimum and maximum tolerance of the advance, which can vary depending on the type of operation to be performed on the strips, is also given. At each advance, the automaton compares the position of the spot with respect to the actual advance made. This measurement is made using the encoder of the tape feed servomotor or an encoder wheel pulled by the cover strip. If the spot is detected before the end of the theoretical advance of a printing step, it is ignored and the tape advance stops at the value of the previously programmed printing step. The cover is then positioned within the tolerances. If the spot is not detected at its theoretical position, the tape advance stops at the value of the previously programmed printing step. The cover is then positioned within the tolerances.

Le nombre d'avances réalisées en mode de mesure du pas en cas de spot non conforme est programmable par l'opérateur; si ce nombre est dépassé, les couvercles non conformes sont enregistrés dans un registre puis évacués du poste de découpe de la manière suivante. La découpe des couvercles est stoppée, l'avance-bande du couvercle procède alors à des avances pour sortir les couvercles non conformes du système de découpe. Le risque de boite avec des couvercles non conformes est ainsi éliminé. Le même procédé est utilisé pour l'avance-bande de découpe du couvercle.The number of advances made in pitch measurement mode in the event of a non-conforming spot is programmable by the operator; if this number is exceeded, non-compliant covers are saved in a register and then removed from the cutting station as follows. Cutting of the lids is stopped, the cover strip advance then advances to remove the non-conforming lids from the cutting system. The risk of boxes with non-compliant covers is thus eliminated. The same process is used for the cover cutting strip advance.

En résumé, la machine selon l'invention est une machine rapide, capable de produire 80 à 200 unités par minute de corps de boîte munis de couvercles ou de fonds à base de matériaux cartonnés. Le principal avantage de la machine est de produire 80 à 85% plus vite qu'une machine de l'état de la technique avec des coûts de fonctionnement comparables, et ceci avec une seule machine, donc moins d'éléments mécaniques, électriques, électroniques et pneumatiques que 2 machines d'ancienne génération fonctionnant en même temps. De plus l'emploi d'une machine selon l'invention à la place de deux machines de l'état de la technique engendre des gains de place, de consommation électrique, d'équipements annexes et de pièces de rechange; ce qui réduit de manière importante le coût de production des boites et donc le prix de revient. Par rapport à l'utilisation de 2 machines qui nécessitent 2 agents de contrôle des boites en sortie de machine, la machine selon l'invention n'a besoin que d'une seule personne pour le contrôle. La production augmente donc de 80 à 85% mais le nombre de personnes sur la ligne reste le même.In summary, the machine according to the invention is a fast machine, capable of producing 80 to 200 units per minute of box body provided with lids or bottoms based on cardboard materials. The main advantage of the machine is to produce 80 to 85% faster than a state-of-the-art machine with comparable operating costs, and this with a single machine, therefore fewer mechanical, electrical, electronic elements. and tires than 2 old generation machines operating at the same time. In addition, the use of a machine according to the invention in place of two machines of the state of the art generates savings in space, in electrical consumption, in additional equipment and in spare parts; which significantly reduces the production cost of the boxes and therefore the cost price. Compared to the use of 2 machines which require 2 box control agents at the machine outlet, the machine according to the invention needs only one person for the control. Production therefore increases from 80 to 85% but the number of people on the line remains the same.

Le gain de place est également très important, par exemple pour les versions adaptées pour la pose des fonds cartons après remplissage, qui sont des machines utilisées chez le client final, car les clients ont rarement la place pour loger plusieurs machines dans un même lieu de production. En effet, la technologie de fabrication et d'assemblage de boites avec des couvercles et fonds en carton, c'est-à-dire d'emballages écologiques et recyclables, est plus volumineuse que les technologies classiques des boites en carton composites, c'est-à-dire corps en carton, fond en métal et couvercle en plastique avec membrane, difficilement recyclables. L'argument du gain de place est donc important si la question se pose de passer la technologie des boites composites à la technologie des boites entièrement en carton.The space saving is also very important, for example for the versions adapted for the installation of cardboard bottoms after filling, which are machines used at the end customer, because customers rarely have the place to accommodate several machines in the same place of production. Indeed, the technology of manufacturing and assembling boxes with cardboard lids and bottoms, that is to say ecological and recyclable packaging, is more voluminous than the conventional technologies of composite cardboard boxes, it i.e. cardboard body, metal bottom and plastic cover with membrane, difficult to recycle. The space saving argument is therefore important if the question arises of switching from composite box technology to entirely cardboard box technology.

Claims (23)

  1. A method for manufacturing packages comprising a tubular body made from a cardboard material and a sealing structure, comprising
    - supplying a sealing unit (2) with preformed tubular bodies and sealing structures in the form of flat portions comprising a central part with a shape conjugated to the shape of the opening of the tubular bodies, surrounded by a peripheral portion that can be folded down that is sufficient to assemble a sealing structure sealably with the inner side wall of the tubular body, said sealing unit comprising a sealing plate rotating following a rhythm via an indexer with N stops,
    - inserting each sealing structure into a forming tool (7), and forming it in a bowl,
    - inserting, placing and sealing said bowl in a tubular body using said forming tool;
    - if the sealing structure is a lid, precutting (14) the side wall of said tubular body and partially precutting said lid along a peripheral line,
    - if the sealing structure is a lid, at least one finishing operation for the end of the package bearing said sealing structure,
    wherein
    said tubular bodies are brought to said sealing unit (2) two by two, the sealing structures are brought two by two to pairs of forming tools (7) of said sealing unit to be formed into bowls therein, then inserting two by two, placed and sealed in pairs of tubular bodies by said pairs of forming tools, and the tubular bodies bearing said sealing structures are subjected two by two to subsequent precutting and finishing operations, characterized in that the inserting of sealing structures into the forming tool is carried out by an insertion device (14) having means for adjusting the precutting pitch (Pd) of the unit for producing sealing structures to the pitch of the forming tools (Po), said precutting pitch defining the distance between two sealing structures simultaneously gripped and transferred, said insertion device comprising a longitudinal linear actuator (37) performing a rectilinear movement and two lateral slides (38) having a transverse movement, producing a transfer angle.
  2. The method according to claim 1, characterized in that it comprises
    - the flat assembly of at least two materials in strips, i.e., a strip of the cellulosic material (16) that can be coated with at least one barrier material and a strip of a material forming a safety membrane (17), into a composite strip (21),
    - precutting the composite strip sealing structures by pairs of flat portions, one of the flat portions of a pair being precut in the left part and the other flat portion of the same pair being precut in the right part of the composite strip.
  3. The method according to claim 2, characterized in that said method follows a pitch by pitch rhythm, and in that the advancement of the strips by one pitch, an assembly sequence of the materials into strips, and a sequence of cutting two sealing structures in the composite strip are made subject to the insertion of a pair of sealing structures in the forming tool (7).
  4. The method according to claim 3, characterized in that an assembly sequence of the composite strip comprises
    - creating a relief difference (24) on the strip of cellulosic material between the central zones of a pair of sealing structures and the peripheral zones to be glued, this method step being optional depending on the glues,
    - placing a film of glue on said peripheral zones,
    - putting the strip of the cellulosic material and the membrane strip in contact,
    - pinching the zone to be glued between and using punches (27, 28) locally compressing said strips,
    - applying a pressing tool (29) between said punches.
  5. The method according to one of claims 2 to 4, characterized in that after each time the composite strip advances and before cutting a pair of sealing structures, the skeleton of the composite strip is tensioned by traction means (19).
  6. The method according to one of claims 2 to 5, characterized in that the flat portion precut in the left part and the flat portion precut in the right part of the composite strip (21) during a same cutting operation are longitudinally offset.
  7. The method according to one of claims 5 and 6, characterized in that the skeleton of the composite strip is separated into its components downstream from said traction means (19).
  8. A machine for manufacturing packages comprising a tubular body made from a cardboard material and a sealing structure made from a cardboard material, assembled to the tubular body, intended to carry out a method according to one of claims 1 to 7, said machine (1) comprising
    - a sealing unit (2) comprising a rotating sealing plate (3), said sealing plate comprising a number N of sealing stations (4), with 3 ≤ N ≤ 50, each sealing station comprising two sealing tools (7), said sealing plate rotating following a rhythm via an indexer with N stops,
    - a feed device (5) inserting tubular bodies into a first sealing station two by two,
    - an insertion device (6) bringing sealing structures in the form of flat portions, two by two, to a pair of forming tools of the second sealing station upstream from the first sealing station,
    - a device (14) for transferring tubular bodies, sealed to sealing structures, from the sealing plate to a unit arranged downstream,
    characterized in that the insertion device of sealing structures has means for adjusting the precutting pitch (Pd) of the unit for producing sealing structures to the pitch of the forming tools (Po) of the sealing station of the sealing unit, said precutting pitch defining the distance between two sealing structures simultaneously gripped and transferred, said insertion device comprising a longitudinal linear actuator (37) performing a rectilinear movement and two lateral slides (38) having a transverse movement, producing a transfer angle.
  9. The machine according to claim 8, further characterized in that it comprises a finishing unit (10) comprising a rotating finishing plate (11), said finishing plate comprising a number N of finishing stations (12) arranged each to receive a pair of tubular bodies sealed to sealing structures, said finishing plate rotating following a rhythm via an indexer with N stops, and at least one double finishing tool (13), with which each finishing station interacts to perform at least one specific finishing operation on each tubular body sealed to a sealing structure,
    - a device (30) for ejecting said packages from the finishing plate.
  10. The machine according to claim 8 or 9, wherein N=8.
  11. The machine according to one of claims 8 to 10, characterized in that said double finishing tool (13) is a tool for precutting lids.
  12. The machine according to one of claims 8 to 11, characterized in that the finishing unit (10) comprises a double hemming tool.
  13. The machine according to one of claims 8 to 12, characterized in that the finishing unit (10) comprises at least one double stacking tool.
  14. The machine according to one of claims 8 to 13, characterized in that it comprises a unit (15) for making, two by two, sealing structures in the form of flat portions comprising a central part with a shape conjugated to the shape of the opening of the tubular bodies, surrounded by a peripheral part that can be folded down that is sufficient to assemble a sealing structure with the inner side wall of a tubular body, operating following a pitch-by-pitch rhythm, and subject to the insertion of a pair of sealing structures in two forming tools.
  15. The machine according to claim 14, characterized in that said production unit comprises
    - a reel of a strip (16) of a cellulosic material that may be coated with at least one barrier material and a reel of a strip (17) of a material forming a safety membrane, the width of said strips being sufficient to house two sealing structures transversely,
    - optionally, a station for creating raised portions (24) on predetermined zones of the strip of cellulosic materials,
    - a station (22) for gluing the strip of cellulosic materials,
    - a station (27, 28, 29) for putting the membrane strip in contact with and pressing it on the strip of cellulosic materials,
    - a station for precutting sealing structures comprising two cutting tools that are longitudinally offset, and
    - at least one feed strip (19) synchronizing the advancement of the strip (16) of cellulosic material with the advancement of the strip (17) of membrane material, forming a composite strip (21), said feed strip and the aforementioned stations of the production unit being subjugated to said insertion device (6).
  16. The machine according to claim 15, characterized in that said production unit comprises an removal device for removing the strip skeleton, and in particular a device (40) for separating the strip skeleton into its components.
  17. The machine according to one of claims 8 to 16, characterized in that it comprises a feed strip device comprising two drive rollers with a same diameter and a servomotor (34) driving one of the two rollers (31), the other roller (32) being driven at a ratio of 1/1 by the first roller.
  18. The machine according to one of claims 8 to 16, characterized in that it comprises a gluing device comprising
    - a press (24) raising gluing zones two by two,
    - a tray (25) transferring a film of glue from the reservoir (26) onto said gluing zones,
    - a pressing device comprising a set of punches (27, 29) insulating said gluing zones, and a press (28) arranged between said punches.
  19. The machine according to one of claims 8 to 16, characterized in that it comprises a forming tool comprising a conical pad (9) pressing on the center of a sealing structure to expel the air between the cellulosic material and the membrane material toward the periphery, said conical pad (9) being thermally insulated from the hot part (45) of the forming tool.
  20. The machine according to claim 19, characterized in that the sealing travel of said tool is adjustable.
  21. The machine according to one of claims 8 to 16, characterized in that it comprises a precutting tool (13) said sealing structure being the lid, comprising a circular cutting knife (50) and a precutting mandrel (48) housing a tubular body, said knife being arranged relative to the mandrel so as to create an incision in the tubular body below the glued surface binding the membrane to the cellulosic materials of the lid and so as to pass through all of the layers of the tubular body and the membrane but not the cellulosic material of the lid, the speeds of rotation of the knife and the mandrel being adjusted so as to synchronize the tangential speeds of the knife and the tubular body.
  22. The machine according to claim 21, characterized in that the edge of the knife is locally altered (53, 56) to create fastening points (54) or a hinge (55).
  23. The machine according to one of claims 8 to 16, characterized in that the precutting tool comprises a pre-stressed module (57) pressing on the apex of the packaging.
EP13194547.9A 2012-11-29 2013-11-27 Method and machine for assembling rigid tubular bodies made of cardboard material with a sealing structure Active EP2738105B1 (en)

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FR1261400A FR2998503B1 (en) 2012-11-29 2012-11-29 METHOD AND MACHINE FOR ASSEMBLING RIGID TUBULAR BODIES OF CARDBOARD MATERIAL WITH SHUTTER STRUCTURE

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EP2738105B1 true EP2738105B1 (en) 2020-07-15

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FR3000917B1 (en) * 2013-01-11 2015-02-20 Bobst Lyon CONTROL METHOD FOR CONTROLLING A TRANSFORMING MACHINE, TRANSFORMING MACHINE AND COMPUTER PROGRAM FOR CARRYING OUT SUCH A CONTROL METHOD
FR3013628B1 (en) 2013-11-27 2016-07-01 Guillaume Sireix METHOD FOR ASSEMBLING TUBULAR BODIES OF CARDBOARD MATERIAL WITH AN SHUTTER STRUCTURE
CN106042445A (en) * 2016-07-20 2016-10-26 嘉兴市新发现机械制造有限公司 Automatic detecting and removing device for cup bottom paper joints
FR3073827B1 (en) * 2017-11-20 2022-08-05 Georges Sireix DEVICE FOR SEALING THE BOTTOM OR LID OF AN ECOLOGICALLY DESIGNED CARDBOARD PACKAGING USING AN EXTENDABLE SUPPORT ELEMENT
CN111251658B (en) * 2020-03-30 2021-10-29 武汉轻工大学 Paperboard gluing device
US20230234762A1 (en) 2022-01-27 2023-07-27 Sonoco Development, Inc. Multipurpose membrane for containers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005058704A1 (en) * 2003-12-19 2005-06-30 Levati Food Tech S.R.L. A machine for filling packages, in particular sacks and/or bags
DE102010039000A1 (en) * 2010-08-06 2012-02-09 Telsonic Holding Ag Device for welding head seams with bags in horizontal filling machines, has slots and/or guide moved by lever mechanisms such that ultrasonic horn is moved in direction of detonator cap, where mechanisms are engaged in guide and/or at slots

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423965A (en) * 1944-01-14 1947-07-15 Continental Can Co Apparatus for forming end closures in paper containers
US2716408A (en) 1951-12-19 1955-08-30 Kendail Company Surgical sponge or like article
FR1251086A (en) 1960-03-14 1961-01-13 Daimler Benz Ag Steering gear for motor cars
US3194479A (en) * 1962-04-16 1965-07-13 Kvp Sutherland Paper Co Containers and container closures
US3460310A (en) * 1964-12-09 1969-08-12 United Glass Ltd Container closures
US3466731A (en) * 1966-09-20 1969-09-16 Anchor Hocking Corp Method and apparatus for forming and inserting liners in closures
US3478489A (en) * 1967-02-15 1969-11-18 Top Seal Inc Cup filling machine and elements
FR2006078A1 (en) * 1968-04-11 1969-12-19 Horauf Maschf Making hollow bucket shaped packaging containers
SE332387B (en) * 1969-06-18 1971-02-01 Sprinter Pack Ab
BE754223A (en) 1969-08-04 1970-12-31 Ncr Co ELECTROLUMINESCENT DISPLAY DEVICE
US3628307A (en) * 1970-04-23 1971-12-21 American Can Co Container capping apparatus
US3714760A (en) * 1971-03-10 1973-02-06 Anchor Hocking Corp High speed rotary container sealing machine with inclined sealing heads
SE359479B (en) * 1972-02-24 1973-09-03 Platmanufaktur Ab
US3808927A (en) * 1972-08-14 1974-05-07 Standard Oil Co Transporting and trimmer apparatus for plastic film having thermoformed articles therein
US3840966A (en) * 1973-06-13 1974-10-15 Pillsbury Co Apparatus for inserting pressfit cups into can bodies
FR2268689B1 (en) * 1974-04-25 1978-09-01 Erca
JPS5813412B2 (en) * 1975-01-30 1983-03-14 住友ベークライト株式会社 You can see how the film works when it comes to printing.
US3938301A (en) * 1975-04-04 1976-02-17 The Pillsbury Company Apparatus for inserting separator plates in cans and tamping them in place
US4065909A (en) * 1976-04-26 1978-01-03 Owens-Illinois, Inc. Method and apparatus for applying a lid and tamper-indicating sheet to a container
GB2051668B (en) * 1979-07-05 1983-04-07 Metal Box Co Ltd Making containers
DE2950469C2 (en) * 1979-12-14 1983-12-01 I.M.A. Industria Macchine Automatiche S.p.A., Ozzano Emilia, Bologna Device for the automatic cutting of rectangular panels with rounded corners
US4599123A (en) * 1982-09-02 1986-07-08 Esselte Pac Aktiebolag Method and apparatus for manufacturing a container having an inner end closure
SE454433B (en) * 1983-05-19 1988-05-02 Esseltepack Ab DEVICE FOR SHAPING AND INSTALLATION OF INTERNAL LOCK IN PACKAGING
SE457946B (en) * 1986-05-26 1989-02-13 Akerlund & Rausing Licens Ab EXPANDABLE SHUTTLE FOR END CLOSE
US4691500A (en) * 1986-07-18 1987-09-08 Packaging Systems International, Inc. Lid sealing machine
US4816110A (en) * 1987-08-31 1989-03-28 Montreal Milling Cutter Co., Inc. In-line sealer
US4888935A (en) * 1988-07-25 1989-12-26 Campbell Soup Company Method for sealing a lid to a container
US5110041A (en) * 1990-08-24 1992-05-05 International Paper Company In-line fitment sealing apparatus and method
US5200587A (en) * 1990-10-22 1993-04-06 Fmc Corporation Induction heating coil with conical base
US5584388A (en) * 1992-04-07 1996-12-17 Johnson; Jimmie L. Apparatus for supplying two-part systems
CH687609A5 (en) * 1993-01-20 1997-01-15 Tetra Alfa Holdings Method and apparatus for filling and sealing of a package.
FR2712253B1 (en) * 1993-11-10 1996-01-19 Mecaplastic Method and device for packaging food, chemical or pharmaceutical products and corresponding packaging trays.
FR2716408B1 (en) 1994-02-22 1996-05-15 Georges Sireix Method for manufacturing tubular packaging and packaging obtained by implementing the method.
JPH09509915A (en) * 1994-03-07 1997-10-07 ザ ピルズベリイ カンパニー Container sealing equipment
US5626000A (en) * 1994-06-10 1997-05-06 Johnson & Johnson Vision Products, Inc. Packaging arrangement
US5716471A (en) * 1995-10-30 1998-02-10 Elopak Systems Ag Method for securing articles to laminates
EP0915024A1 (en) * 1997-10-25 1999-05-12 Werner Grabher Closure lid and method of manufacture
DE19817737A1 (en) * 1998-04-21 1999-11-04 Hassia Verpackung Ag Deep-drawn cup and process for its manufacture
US6073422A (en) * 1998-08-11 2000-06-13 Osceola Foods, Inc. Filling and lidding machine and method
US6523330B1 (en) * 1998-10-13 2003-02-25 In-Flo Liquid Dispensing Corporation Method and apparatus for capping, evacuating and folding collapsible plastic containers
GB0209316D0 (en) * 2002-04-24 2002-06-05 Relco Uk Ltd Cutting device
US20040020171A1 (en) * 2002-06-10 2004-02-05 Biba Scott I. Web cutter
CA2471419A1 (en) * 2003-06-18 2004-12-18 Fort James Corporation Device for making containers
EP1992560A3 (en) * 2004-04-20 2008-11-26 Jörgen Henriksen Web of container closures
US20090100805A1 (en) * 2007-10-19 2009-04-23 Schneider Wayne F Sealed plastic closure and method for making the same
US8142827B2 (en) * 2008-04-16 2012-03-27 Georgia Crown Distributing Co. Packaged bottle beverage having an ingredient release closure with improved additive release and method and apparatus thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005058704A1 (en) * 2003-12-19 2005-06-30 Levati Food Tech S.R.L. A machine for filling packages, in particular sacks and/or bags
DE102010039000A1 (en) * 2010-08-06 2012-02-09 Telsonic Holding Ag Device for welding head seams with bags in horizontal filling machines, has slots and/or guide moved by lever mechanisms such that ultrasonic horn is moved in direction of detonator cap, where mechanisms are engaged in guide and/or at slots

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FR2998503A1 (en) 2014-05-30
EP2738105A1 (en) 2014-06-04
US9975306B2 (en) 2018-05-22
US20140148322A1 (en) 2014-05-29
FR2998503B1 (en) 2014-11-14
ES2823487T3 (en) 2021-05-07

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