EP3246153B1 - Appareil permettant de former des boîtes avec un système d'assemblage d'étiquette, procédé associé et boîte ainsi obtenue - Google Patents

Appareil permettant de former des boîtes avec un système d'assemblage d'étiquette, procédé associé et boîte ainsi obtenue Download PDF

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Publication number
EP3246153B1
EP3246153B1 EP17171500.6A EP17171500A EP3246153B1 EP 3246153 B1 EP3246153 B1 EP 3246153B1 EP 17171500 A EP17171500 A EP 17171500A EP 3246153 B1 EP3246153 B1 EP 3246153B1
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EP
European Patent Office
Prior art keywords
blank
box
label
flap
feeding
Prior art date
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Application number
EP17171500.6A
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German (de)
English (en)
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EP3246153A1 (fr
Inventor
Giulio SALETTI
Leonardo GIANNINI
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Europrogetti SRL
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Europrogetti SRL
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Publication of EP3246153A1 publication Critical patent/EP3246153A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • 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
    • B31B50/46—Folding sheets, blanks or webs by plungers moving through folding dies and interconnecting side walls
    • 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
    • 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
    • B31B50/72—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets
    • 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
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
    • B31B2100/0024—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed having all side walls attached to the bottom
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
    • B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • B31B2120/402—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box
    • 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
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • 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
    • B31B50/04—Feeding sheets or blanks
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/72—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets
    • B31B50/722—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets on already formed boxes
    • B31B50/724—Applying tapes on the corners of set-up boxes, e.g. involving setting-up

Definitions

  • the present invention relates to the field of the production of cardboard boxes, such as in particular but not necessarily, stretched or microwave cardboard intended for successive covering, and namely the object is an apparatus for forming the aforesaid boxes in which use is made of a new joining system of the cold type.
  • the invention also covers a method according to which the apparatus operates, and to a box obtained with such process and apparatus.
  • the known technique provides various systems.
  • the application of the tape generates an additional layer of material (the tape itself) which in turn causes a surface irregularity; an irregularity which remains and is noted after the arrangement of the covering paper, which glossy finish may highlight the ridge that forms due to the effect of the tape portion. Also, the required application of pressure may cause deformations and subsequent irregularities which can be noticed on the finished box.
  • a further prerogative of the system under examination is associated with the application time of the heat-seal tape, generally of about 0.6 sec, which results in a limitation to the speed and productivity of the machines which implement this type of solution. Also the need to perform an initial heating of the machine has an unfavourable effect in terms of time consumption.
  • the application of the glue onto the thickness generates, due to the difficulty in ensuring the accuracy required and to the overall management of the application heads, a series of glue residues on the box surfaces which compromise the quality of the finished product.
  • the height of the boxes made with this methodology remains necessarily high because a limited application surface of the glue limits the adhesion force of the edges with subsequent instability of the joined box and the risk of it opening during the transport or covering steps thereof.
  • the edge adhesion between flaps may be poor also with boxes having increased height, and therefore result in rejects or deterioration in quality.
  • boxes are also known in which the joining is omitted precisely to avoid appearance-related problems, and the structural stabilization of the box is transferred to the covering sheet alone.
  • the box thus obtained however has very modest features of solidity, which are inadequate for most uses.
  • a box flat blank is prepared having a traditional configuration, for example a typical cross-shaped configuration.
  • the blank indicated with S and shown with particular clarity in the starting configuration thereof in figure 2 and in figure 3a , has a central portion S1 intended to form the bottom of the box, from which four side flaps S2-S5 extend in a foldable fashion (folding lines depicted with thin line).
  • the flaps when raised orthogonal to the bottom, form the lateral walls of the box.
  • the apparatus is configured as a production line which extends according to a longitudinal axis X which is also the feeding/advancement linear path of the blank, in the direction noted also by the arrow overlapping the blank in certain views.
  • a production line which extends according to a longitudinal axis X which is also the feeding/advancement linear path of the blank, in the direction noted also by the arrow overlapping the blank in certain views.
  • the apparatus provides a traditional blank feeding device adapted to push individual blanks from a feeding stack (not depicted because in itself known) over a feeding plane ⁇ which is typically horizontal.
  • the blank S is oriented with two flaps S2 and S4 which advance in front and rear position (advancement axis X orthogonal to the respective folding lines) and two flaps S3 and S5 arranged laterally (advancement axis X parallel to the respective folding lines).
  • each blank S is fed into the inlet region which makes use of a conveyor system with two belts 11 which operate on the edges of the lateral flaps S3 and S5 in cooperation with elastically opposing trains of pressure rollers 12, the flaps being opposingly engaged between the belts and the rollers.
  • the inlet area 1 also provides for a pair of labelling devices 13 adapted to apply cold adhesion sticker labels of a given length along the lateral edges S2a, S2b, S4a, S4b of the front and rear flaps, that is the edges parallel to the advancement axis and intended to be joined with respective lateral edges of the other flaps at the moulding along the lateral corners of the box.
  • the labelling devices which according to one aspect of the invention are now used in a novel and surprisingly advantageous manner within the context of a moulding system, are in themselves known, given that for example, they are used for the application of sticker labels on bottles or other types of packaging, and therefore a detailed description thereof is omitted.
  • the devices 13 arranged under the feeding plane ⁇ are adapted to dispense, starting from feeding reels 13a and at dispensing heads 13b arranged closely to the plane ⁇ itself, labels E of various lengths in strips elongated according to the path X, to apply them along at least part of the extension of the aforesaid lateral edges S2a, S2b, S4a, S4b.
  • the configuration and position of the devices is notably such that the aforesaid lateral edges are substantially along the longitudinal symmetry axis of the label, which is the same as saying that the heads 13b are provided so that the label dispensed is released, preferably in symmetrical manner, over the corresponding edge, with a first portion adhering to the flap, a second portion remaining with the sticky face exposed outside the flap itself.
  • each device provides a fixed rail 141 (a support 141a of which is seen also in figure 3a ) which extends parallel to the axis X to sustain the flap at the bottom, starting from a point immediately downstream of the dispensing/releasing point of the label and in the area involved by the label itself.
  • the device further comprises an arm 142 that can be lifted, an end of which - provided with wheels 143 - acts under pressure, urged by elastic means (not shown), on the top face of the flap, again at the edge involved by the label and downstream of the dispensing/releasing point thereof.
  • the flap and label assembly is slightly tightened/compressed in the direction of the thickness between the guide 141 and the wheels 143 to promote the adhesion.
  • the labels E may already be separate elements on the consumable material (paper support tape prepared with anti-adherent surface), which is loaded onto the reels 13a, or the devices may be provided with systems for the customized cutting of a continuous adhesive tape, again according to known systems. In any case, the labels are separated from the support with the known techniques prior to the dispensing.
  • the labels may be for example (without excluding possible alternatives), made of simple paper material (grammage indicatively comprised between 60 and 120 g/m 2 ) and a cold adhesive substance with no particular performance (for example, a rubber-based glue with adhesion power on stainless steel of 2-4 N/cm according to the AFERA® 4001 test method) can be used as a glue.
  • a moulding station 2 downstream of the inlet region 1 according to the feeding direction is a moulding station 2 in which the blank stops and which provides traditionally a mould 21 that is movable vertically, or more in general according to a moulding direction Z orthogonal to the feeding plane ⁇ due to a drive system 22 and consisting of a block with shape corresponding to the box to be made.
  • the mould can be made of two superimposing modules that can be spaced apart from each other along the movement axis, whereby if a first module (the lower one or mould, properly speaking) remains always inside the box pressing the bottom thereof, the top module or counter-mould (not shown) may be inserted in order to ensure the pressure required for an optimal smoothening of the labels, as is clarified below.
  • such means comprise in particular according to one aspect of the invention, in this first embodiment, a pair of folding elements 23 arranged on respective sides of the station parallel to the feeding path X so as to substantially be at half of the extension of the lateral flaps S3 and S5 (or first flaps of each pair forming a corner) according to the same direction, when the blank is centred on appropriate reference means.
  • the overturning of the lateral flaps occurs starting from a first lowering step ( figures 7a and 7b ) defined by the vertical alignment between lower face of the mould 21 and the upper end of the folding elements 23 with which the blank abuts.
  • the position of the folding elements 23 both along the feeding path X and in height may be adjusted through obvious sliding guide systems, for example with the construction shape obviously comprehensible from figure 7b .
  • Main folding elements then comprise four folding heads 24 arranged in regions adapted to correspond with respective corners of the bottom of the blank S, so as to abut with the blank, and notably here, for example, only with the front flap S2 and with the rear flap S4, or second flaps of each pair forming the corner, to overturn them in turn against the sides of the mould.
  • the folding heads 24 are arranged here lower than the elements 23, hence such abutment occurs starting from a second and further lowered position of the mould ( figures 8a and 8b ), a position in which the lateral flaps S3 and S5 are already in vertical arrangement.
  • each head 24 has a member 241 which is the true folding element and which preferably is made in the shape of a plate, which is arranged parallel to the feeding path X and which on a sharp edge, defines, in the top region, an angled entrance face 241a adapted to hit the relative flap close to the lateral edge, the one already bearing the label E.
  • a vertical smoothening face 241b which plane of development is orthogonal to the path X and is adapted to be at the folding between the bottom and the flap (front or rear) in order to slide on the flap itself once folded, the position being adjusted to exert a given pressure on the flap tightening it against the corresponding wall of the mould, all at the portion affected by the label E.
  • the width of the plate, and therefore of the face 241b, is calibrated so as to substantially correspond to the one of the label-half adhering on the flap.
  • Such smoothening action occurs in particular with the motion of the mould again further lowering towards a third position ( figures 9a to 10c ) such as to fold also the front and rear flaps in a second folding step and to cause at least a substantial part of the development in height of the aforesaid flaps (and of the relative labels) to hit the vertical face 241b.
  • the mounting of the head is such as to allow an adjustment at least along the feeding path X and in a direction orthogonal thereto with systems which can vary constructively according to what is obvious for an expert in the field, and of which certain exemplifying solutions can be immediately understood from the drawings.
  • Each head is finally completed by a blade 242 lying on a plane orthogonal to the feeding plane ⁇ and parallel to the feeding path X, in addition to being movable on its plane again along the path X under the action of the actuator means 243 (omitted in figure 9b ).
  • the blade 242 is practically aligned with the corresponding lateral flap S3 or S5 when folded, and is movable from a rearwards displaced position behind the face 241b, position adapted to avoid interferences with the box until the lowering of it into the third lowered position ( figures 9a and 9b ) is complete.
  • the blade 242 is then adapted to take on a forwards displaced position closer to the inside of the box, a displacement which hits the portion (second portion) of the label E that has remained free and protrudes from the front or rear flap; such a forwards displacement causes the subsequent folding of this label portion over the edge of the adjacent lateral flap, thus shaping the label about the corner and finally, by dragging in contact on such lateral flap opposingly with the mould ( figures 10a , 10b, 10c ), exerts a given pressure (the mutual positioning of the blades and of the mould being adjusted for this purpose) which consolidates the adhesion and smoothens the label.
  • the blade protrudes from the corresponding face 241b, thus defining a dihedral angle with edge parallel to the direction Z and width corresponding to the angle of the box about which the head works (in the example case, 90°).
  • the edges of the aforesaid dihedrons are at the corners of a rectangle corresponding to the bottom S1 of the box/blank.
  • the apparatus is obviously assisted by a control system that can be programmed with the aid of suitable sensors, and that is adapted to manage the operation according to that indicated above and further detailed below.
  • a control system that can be programmed with the aid of suitable sensors, and that is adapted to manage the operation according to that indicated above and further detailed below.
  • the features of such a system are to be considered implementable in an obvious fashion and obviously are not in themselves the object of the invention.
  • the blank S is fed to the inlet region 1 as shown in figures 2 , 3a and 3b so as to be transported on the plane ⁇ by the conveyor system comprising the belts 11 and the trains of rollers 12.
  • the front flap S2 passes at the heads 13b of the labelling devices, they release respective labels so as to cause them to extend at least along a part of the lateral edges S2a, S2b, in any case starting from the front/entrance end of the edge (the one which will be the end of the edge distant from the bottom after the box is formed).
  • the opposing device 14 ( figure 3b ) is involved to allow the label to adhere with the minimum stability required.
  • the release of the label occurs with a speed synchronized with the movement of the blank, and the blank and label assembly is engaged and compressed between guide 141 and wheels 143 immediately downstream of the dispensing point.
  • Figure 4 shows a successive advancing step, with label E applied and the head 13b which has clearly stopped the dispensing simultaneously to the passage over it of the bottom portion S1.
  • the dispensing resumes with the passage of the rear flap S4 and then second labels E are applied on the lateral edges S4a and S4b by respective heads 13b, all exactly as described above for the application on the front flap S2.
  • the labels are to reach the end of the edge distant from the bottom (which here, is the flap rear/exit end).
  • the blank is provided with four labels E, each arranged over the edge as explained above, and therefore with one half adhering on the flap and one half exposed and protruding, and it reaches the moulding station 2 in this condition ( figure 6 ).
  • the mould 21 descends to the first position in which it comes into contact with the blank, causing it to abut on the folding elements 23 ( figures 7a, 7b ) which with the successive descent toward the second position ( figures 8a and 8b ), induce the folding and lifting of the lateral flaps S3, S5.
  • the labels E are however still half protruding (coplanar) from their own application flap (front or rear).
  • the blades 242 ( figures 10a to 10c ) then come into action and while advancing, they push the protruding half of the label while folding it around the corner, and exerting a given pressure in direction orthogonal to path X, and therefore orthogonal to the flaps/lateral walls S3 and S5, they carry out the required function of adhesion consolidation and smoothening.
  • the smoothening action, both by the plates 241b and by the blades 242 occurs with the counter-pressure of the counter-mould which completely occupies the inner volume of the box.
  • the box outlet from the forming/joining may also have labels E' which extend only along part of the lateral corners so long as this part, for obvious reasons of structural stability, extends starting from the top end of the corners, that is the one opposite to the end adjacent to the bottom.
  • a second embodiment of the invention differs from the previous one for different solutions implemented in the moulding station, which is indeed the only one depicted (the parts of the apparatus not specifically shown and/or described being similar to the ones in the preceding example).
  • the folding elements may in any case be present because they are useful as auxiliary folders and with guiding and containing function in the case of larger box sizes, the role of folding all the flaps may be (and normally is) exerted by the main folders provided all on the heads 24'. Therefore the heads provide, in addition to plates 241' similar to the ones of the previous case, puncheons 244' arranged adjacent to the plates and configured, by position and height, so as to hit the lateral flaps S3, S5 before the front and rear flaps S2, S4 impact on the plates 241', following the descent of the mould, with operating sequence conceptually similar (albeit with possibly different timing) to the ones described above for the first embodiment.
  • smoothening blades 242' on the heads 24' also in the second embodiment, which blades however here do not operate with the counter-pressure of the mould (or namely the counter-mould) but rather in cooperation with suction cups 245' adapted to enter in a gripping mode at the suitable timing on the lateral flaps in raised arrangement (in more centred position with respect to the region of influence of the blades, as shown in figure 14 ) so as to exert a direct force toward the outside of the box and which causes a forced adaptation between the flap itself and the corresponding contact face of the blade, which is functional to an adequate smoothening.
  • the suction cups 245' are obviously fed by a pneumatic circuit which fittings 246' are shown in figure 13 .
  • Boxes with joined corners, and therefore sturdy ones may be provided with a cold application system (and therefore avoiding all the complications and drawbacks of hot systems) and with a surprisingly superior appearance because the reduced thickness of the labels once smoothened on the walls does not cause visible projections or irregularities once the box is finished, thus avoiding also the signs that heat and the strong pressure may generate in systems with portions of heat-seal tape.
  • An important additional advantage results from the possibility of incorporating RFID tags in one or more of the labels.
  • the use of these tags is increasingly common in the packaging of all kinds of products and the possibility of incorporating them directly in the box in the same construction phase thereof, furthermore so as to make them invisible, results in, thanks to the invention, new and truly advantageous scenarios.
  • the process may be applied in substantially similar manner also to boxes with various features, and the construction solutions selected for applying the labels and for consolidating them on the box can obviously vary, also in relation to different shapes of boxes, it being understood that the exemplifying solutions described herein as well as the object of the secondary claims appear advantageous in terms of construction and functional simplicity and of quality effectiveness.
  • the fixed smoothening faces and the relative blades may be configured and oriented spatially so as to form dihedral angles which are different from a right angle and with an edge not parallel to the axis Z in order to make boxes with non-straight edges.
  • blades are mentioned, the concept is extended obviously also to elements with a different shape, so long as they are provided in a similar manner with a face(s) capable of performing the folding and smoothening function described above.

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  • Making Paper Articles (AREA)

Claims (16)

  1. Appareil pour former une boîte en pliant une ébauche plane (S), l'appareil comprenant une région d'entrée (1) et une station de mise en forme (2) disposées successivement le long d'un chemin linéaire d'alimentation en ébauche (X), la région d'entrée comprenant des moyens de transport d'ébauche (11, 12) pour faire avancer l'ébauche sur un plan d'alimentation (α) le long dudit chemin d'alimentation (X) vers ladite station de mise en forme (2), ladite station de mise en forme comprenant des moyens de mise en forme (21) pouvant coulisser le long d'une direction de mise en forme (Z) orthogonale au dit plan d'alimentation (α), et des moyens de pliage fixes (23, 24) contre lesquels sont configurés lesdits moyens de mise en forme (21) pour pousser ladite ébauche pour la façonner en boîte, l'appareil comprenant en outre des moyens de jonction d'angle adaptés pour joindre mutuellement des paires respectives de rabats d'ébauche qui sont au contact les uns des autres le long des coins respectifs de la boîte formée, lesdits rabats comprenant au moins un rabat avant (S2) et un rabat arrière (S4) adaptés pour avancer en position avant et arrière le long dudit chemin linéaire d'alimentation (X), l'appareil étant caractérisé en ce que lesdits moyens de jonction d'angle comprennent :
    - des moyens de distribution d'étiquettes (13) pour distribuer des étiquettes de marquage autocollantes à adhérence à froid (E), positionnés dans ladite région d'entrée (1) près du dit plan d'alimentation (α), adaptés pour appliquer lesdites étiquettes sur l'ébauche plane en traversant la même région le long d'au moins une partie de l'extension des bords latéraux (S2a, S2b, S4a, S4b) des dits rabats avant et arrière (S2, S4) ; et
    - des moyens de façonnage et de lissage (241b, 242) pour façonner et lisser les étiquettes sur la boîte, agencés dans ladite station de mise en forme (2) de sorte qu'une partie libre de l'étiquette (E) soit apte à être pliée sur le bord du rabat latéral adjacent, façonnant l'étiquette sensiblement sur le coin de la boîte.
  2. L'appareil selon la revendication 1, dans lequel lesdits moyens de façonnage et de lissage comprennent une pluralité de faces fixes (241b) desdits moyens de pliage (24) qui s'étendent de manière incidente par rapport audit plan d'alimentation (α), et un nombre de lames de façonnage et de lissage d'étiquettes (242) associées auxdites faces et mobiles dans une direction parallèle audit plan d'alimentation (α) entre une position déplacée vers l'arrière affleurant derrière ladite face et une position déplacée vers l'avant dans laquelle elle fait saillie par rapport à la face formant avec elle une angle dièdre ayant un bord adapté pour coïncider avec l'un desdits coins de la boîte formée.
  3. L'appareil selon la revendication 2, dans lequel lesdites faces fixes (241b) s'étendent parallèlement à ladite direction de mise en forme (Z).
  4. L'appareil selon la revendication 3, dans lequel lesdites faces fixes (241b) et lesdites lames (242) forment des angles dièdres droits respectifs avec des bords parallèles à ladite direction de mise en forme, aux coins d'un rectangle correspondant au fond d'une boîte parallélépipédique verticale.
  5. L'appareil selon la revendication 4, dans lequel lesdites faces (241b) s'étendent orthogonalement au dit chemin d'alimentation (X).
  6. L'appareil selon l'une quelconque des revendications précédentes, dans lequel lesdites faces fixes (241b) sont formées dans des plaques de pliage (241) appartenant à des moyens de pliage principaux qui, pour chaque paire de rabats formant un coin de boîte, sont adaptés pour plier au moins un rabat de la paire sur laquelle, dans ladite région d'entrée (1), une étiquette a été préalablement appliquée par adhérence d'une première partie de celle-ci.
  7. L'appareil selon la revendication 6, dans lequel lesdits moyens de pliage principaux comprennent en outre, en association avec lesdites plaques (241), des tampons respectifs (244') configurés pour frapper, dans chaque paire de rabats, et avant que les plaques (241) ne frappent un rabat relatif suivant le déplacement desdits moyens de mise en forme dans ladite direction de mise en forme (Z), une partie centrale de l'autre volet de la même paire.
  8. L'appareil selon l'une des revendications 6 et 7, dans lequel lesdits moyens de pliage comprennent des éléments de pliage auxiliaires (23) configurés pour frapper, dans chaque paire de rabats, et avant que les plaques (241) ne frappent un rabat relatif suivant le déplacement desdits moyens de mise en forme dans ladite direction de mise en forme (Z), une partie centrale de l'autre rabat de la même paire.
  9. L'appareil selon l'une quelconque des revendications précédentes, comprenant dans ladite station de mise en forme (2) des moyens de réaction pour s'opposer à l'action de la lame, lesdits moyens de réaction incluant des moyens d'aspiration ou des moyens de contre mise en forme associés auxdits moyens de mise en forme.
  10. L'appareil selon l'une quelconque des revendications précédentes, dans lequel lesdits moyens de distribution d'étiquettes comprennent au moins deux têtes de distribution fixes (13b) adaptées pour distribuer lesdites étiquettes le long dudit chemin d'alimentation (X), la région d'entrée comprenant en outre des dispositifs de guidage d'ébauche (14) pour guider l'ébauche en aval desdites têtes et comprenant chacune un rail fixe (141) s'étendant parallèlement au chemin d'alimentation (X) pour soutenir l'ébauche par dessous dans une zone d'application d'étiquette correspondante, et un bras (142) adapté pour appuyer élastiquement avec un extrémité munie de roues (143) sur une face supérieure de l'ébauche dans la même zone.
  11. Un procédé pour former une boîte en pliant un ébauche plane (S), comprenant les étapes d'alimentation en ladite ébauche plane (S) sur un plan d'alimentation (α) le long d'un chemin linéaire d'alimentation (X) vers une étape de mise en forme, dans ladite étape de mise en forme faire glisser les moyens de mise en forme (21) le long d'une direction de mise en forme (Z) orthogonale au dit plan d'alimentation (α) en poussant ladite ébauche contre des moyens de pliage fixes (23, 24) pour façonner l'ébauche selon une boîte, le procédé comprenant en outre l'étape consistant à joindre mutuellement des paires respectives de rabats d'ébauche qui sont en contact les uns avec les autres le long des coins respectifs de la boîte formée, lesdits rabats comprenant au moins un rabat avant (S2) et un rabat arrière (S4) adaptés pour avancer en position avant et arrière le long du dit chemin d'alimentation linéaire (X), le procédé étant caractérisé en ce que ladite jonction est effectuée en:
    - appliquant sur l'ébauche plane (S) une pluralité d'étiquettes de marquage autocollantes à adhérence à froid (E) lorsque l'ébauche se déplace dans ladite étape d'alimentation, le long d'au moins une partie de l'extension des bords latéraux (S2a, S2b, S4a, S4b) des dits rabats avant et arrière (S2, S4) ;
    - façonnant et lissant les étiquettes sur la boîte formée lors de ladite étape de mise en forme, la partie libre de l'étiquette (E) étant repliée sur le bord du rabat latéral adjacent, en façonnant l'étiquette sensiblement sur le coin de la boîte.
  12. Le procédé selon la revendication 11, dans lequel chaque étiquette est appliquée sur ladite ébauche sur un bord correspondant, une première partie d'étiquette étant en adhérence sur le rabat relatif, et une seconde partie d'étiquette dépassant du bord avec la face collante exposée à l'extérieur du même rabat ; et dans lequel ladite étape de mise en forme permet tout d'abord de lisser la première partie d'étiquette sur ladite boîte par pression sur les rabats relatifs contre une pluralité de faces fixes desdits moyens de pliage fixes (24) qui s'étendent de manière incidente par rapport audit plan d'alimentation (α), puis de plier et lisser la deuxième partie d'étiquette sur l'autre rabat formant le coin autour de ce dernier, en déplaçant un nombre de lames de façonnage et de lissage (242) associées auxdites faces.
  13. Le procédé selon la revendication 12, dans lequel ladite étape de mise en forme consiste à plier d'abord les premiers rabats de l'ébauche pour recevoir l'adhérence des secondes parties d'étiquettes, puis les seconds rabats avec les premières parties d'étiquettes déjà appliquées dessus.
  14. Le procédé selon l'une quelconque des revendications 11 à 13, dans lequel dans ladite étape de mise en forme, le façonnage et le lissage des étiquettes sont effectués avec l'assistance d'une action de réaction comprenant une aspiration ou une butée mécanique.
  15. Le procédé selon l'une quelconque des revendications 11 à 14, dans lequel lesdites étiquettes sont appliquées conformément à une distribution le long dudit chemin d'alimentation (X), l'application prévoyant en outre un passage par des moyens de guidage (141, 142) qui pressent élastiquement l'ensemble de l'ébauche et des étiquettes dans le sens de la largeur sur les régions dans lesquelles se trouvent les mêmes étiquettes.
  16. Le procédé selon l'une quelconque des revendications 11 à 15, dans lequel lesdites étiquettes comprennent un ou plusieurs marqueurs RFID.
EP17171500.6A 2016-05-18 2017-05-17 Appareil permettant de former des boîtes avec un système d'assemblage d'étiquette, procédé associé et boîte ainsi obtenue Active EP3246153B1 (fr)

Applications Claiming Priority (1)

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ITUA2016A003555A ITUA20163555A1 (it) 2016-05-18 2016-05-18 Apparecchiatura per la formatura di scatole con sistema di cucitura a etichette, relativo procedimento e scatola così ottenuta

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EP3246153B1 true EP3246153B1 (fr) 2020-04-15

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CN109720652A (zh) * 2018-12-17 2019-05-07 李垒 牢固性可调的贴角机

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ES2939387B2 (es) * 2022-11-07 2023-08-23 Telesforo Gonzalez Maqu Slu Maquina y metodo para la formacion y marcado de cajas, y caja obtenida

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US2174585A (en) * 1937-11-08 1939-10-03 Frank J Kotzich Cutter for quadruple stayer
ITBO20110772A1 (it) * 2011-12-29 2013-06-30 Emmeci Spa Apparato e procedimento per la formazione di una scatola in carta o cartone avente spigoli laterali di altezza diversa
ITBO20130197A1 (it) * 2013-05-03 2014-11-04 Emmeci Spa Macchina e metodo per formare scatole in carta o cartone

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Publication number Priority date Publication date Assignee Title
CN109720652A (zh) * 2018-12-17 2019-05-07 李垒 牢固性可调的贴角机

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