EP4041539B1 - Device and method for forming a container by folding - Google Patents
Device and method for forming a container by folding Download PDFInfo
- Publication number
- EP4041539B1 EP4041539B1 EP20792565.2A EP20792565A EP4041539B1 EP 4041539 B1 EP4041539 B1 EP 4041539B1 EP 20792565 A EP20792565 A EP 20792565A EP 4041539 B1 EP4041539 B1 EP 4041539B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- folding
- plate
- cover
- tongue
- movement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003825 pressing Methods 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
- B65B43/265—Opening, erecting or setting-up boxes, cartons or carton blanks
-
- 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
- B31B50/004—Closing boxes
- B31B50/0044—Closing boxes the boxes having their opening facing upwardly
-
- 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
- B31B50/004—Closing boxes
- B31B50/0042—Closing boxes the boxes having their opening facing in horizontal direction
-
- 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
- B31B50/26—Folding sheets, blanks or webs
- B31B50/262—Folding sheets, blanks or webs involving folding, leading, or trailing flaps of blanks
-
- 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
- B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
- B31B50/54—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers operating on moving material
-
- 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
- B31B50/56—Folding sheets, blanks or webs by rotary members co-operating with blades
-
- 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
- B31B50/58—Folding sheets, blanks or webs by moving endless belts or chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/004—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material in blanks, e.g. sheets precut and creased for folding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B65B7/26—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by closing hinged lids
-
- 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
- B31B2100/0022—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 made from tubular webs or blanks, including by 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
- 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
- B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
- B31B2120/302—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing collapsible into a flat condition
-
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
- B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
- B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
- B65B11/105—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the axis of the tube being parallel to the conveying direction
Definitions
- the present invention enters the field of forming by folding cardboard plates with a view to forming containers, to package at least one product but preferably several products.
- the term “product” encompasses an individual object.
- a product is a container, such as a bottle or flask, or a can, or even a cardboard brick.
- Such products can also be grouped, positioned within a carton (or “cluster”) and/or packaged in film.
- a product can be made of any type of material, in particular plastic, metal or even glass.
- a product can be rigid or semi-rigid.
- Such a container is intended to contain, in a non-exhaustive manner, a fluid, a liquid, powders or granules, in particular of the food or cosmetic type.
- a product can have any type of shape, symmetrical or not, regular or irregular.
- Such products are obtained along an industrial production line, undergoing several successive treatments passing through dedicated stations, such as for example the blowing of plastic bottles or vials, filling and capping, labeling, or even sterilization or pasteurization.
- dedicated stations such as for example the blowing of plastic bottles or vials, filling and capping, labeling, or even sterilization or pasteurization.
- the finished products are packaged in groups in batches, the products being held together by a plastic film, in particular shrunk through a bundling operation, or inside containers.
- Such containers can be in the form of cardboard boxes or “cartons” for packaging products.
- Such boxes have a rectangular parallelepiped shape, with an interior volume capable of receiving a group of products, in a staggered pattern but preferably arranged in a matrix in columns and rows, or even several groups of superimposed products.
- the cardboard plate 100 In reference to the figure 1 representing an elevational view of an example of a cardboard plate 100, presented flat, it includes a bottom 101, intended to receive the products on its upper face, which will be positioned internally once the container has been formed. On either side of said bottom 101, along its longitudinal edges, the cardboard plate 100 comprises two side walls, namely a left side wall 102 and a right side wall 103.
- the cardboard plate 100 also comprises a cover 104, along a longitudinal edge of one of the side walls, such as for example the right side wall 103. Along an opposite longitudinal edge of the other side wall, respectively the left side wall 102, the cardboard plate 100 comprises a tab 105.
- the tab 105 can be fixed on the cover 104, on the side opposite the longitudinal edge of junction with said one of the side walls; said tongue 105 is then commonly called “external tab”.
- the cardboard plate 100 comprises flaps, at least four in number, on the one hand, vertical flaps 106 connected to the side walls along their transverse edges and, on the other hand, horizontal flaps 107 connected at the bottom 101 and at the cover 104 along their transverse edges.
- the tongue 105 is folded orthogonally, with a deposit of glue which is carried out on its exterior face, while the cover is folded down until it comes into contact with said exterior face of the tab 105 and the glue deposited, as visible on the Figure 3 , then delimiting the interior volume of the container 1 in the form of a cardboard box.
- the cover 104 is first folded, then the exterior tab is folded over the adjacent side wall previously glued.
- the vertical flaps 106 are folded orthogonally, with glue deposited on the exterior face, then the horizontal flaps 107 are folded down until they come into contact with the corresponding vertical flaps 106 and glue deposited.
- the cardboard box 1 is then formed and completely closed, as visible on the Figure 5 .
- the forming by folding of the cardboard plate 100 is generally carried out with products already previously grouped and positioned on the upper face of the bottom 101. The folding is therefore carried out around the products which will be enclosed in the container 1 thus obtained by folding of the 100 cardboard plate.
- This packaging operation is commonly called “wrap” (for “packaging” in English).
- the forming of such a container 1 from a plate 100 can be carried out sequentially, step by step, with the plate 100 stopped at each step.
- the forming is preferably carried out in continuous, with the plate 100 circulating on conveyors crossing different stations dedicated to the successive stages of folding the different parts of said plate 100, namely first the simultaneous folding of the left side walls 102 and right 103, then the folding of the tongue 105 occurring at the same time as the cover 104 is folded down to form the volume of the future container 1, then the folding of the vertical flaps 106, followed by the folding of the horizontal flaps 107.
- the invention particularly aims at continuous forming by folding a cardboard plate in order to form a container; specifically the folding of the vertical flaps of such a cardboard plate.
- Such a folding operation is carried out by a forming device comprising several successive stations dedicated to each of the aforementioned folding steps.
- At least one conveyor transports each cardboard plate on the upper side, in one direction of movement, from upstream to downstream, through the different modules, to at least one exit conveyor.
- the forming device comprises means for folding the tongue and means for folding the cover, acting synchronously with the movement of the box, with a view to first folding the tongue and then folding the covering cover .
- the end of the folding of the tongue can be carried out by the end of the folding of the cover. In fact, these operations are carried out almost simultaneously.
- the means for folding the tongue are on one side of the device, while the means for folding the cover are on the opposite side, namely on the right or on the left depending on the configuration of the plate.
- the folding and folding means extend in the same area in order to carry out these treatments almost simultaneously.
- a known forming device comprises folding and folding means in the form of rails fixed to the structure of the forming device.
- Such rails have a curved, substantially helical profile, extending vertically from an upstream end to a horizontal downstream end.
- Such a solution has a drawback, due to the stresses applied to the movable tongue and cover against fixed rails, inducing twists during folding and folding from the downstream part to the upstream part of the plate during its movement. Such twists are likely to shift the final positioning of the tongue and/or the cover covering the tongue, modifying the squareness of the container formed.
- an optimal shape, rectangular parallelepiped, respecting the orthogonality of the walls is important and must be optimal, on the one hand, for the aesthetic appearance and the good packaging of the products, but above all on the other hand, when several Containers must be stacked, particularly on pallets.
- a deformation of a single box is likely to unbalance a stack of containers, making their handling precarious and dangerous for operators.
- a forming device has therefore been designed comprising folding means and folding means in the form of horizontal pushers, the deployment of which takes place transversely, the end of each pusher coming to bear, on one side, against the tab and, on the opposite side, against the lid, with an offset respectively from each other according to the direction of movement of the container, in order to ensure the tab is folded first, then the lid is folded.
- pushing forming reduces twisting, it always poses the disadvantage of applying a support force extending transversely and horizontally relative to the longitudinal movement opposite the plate, which can induce a force of force. longitudinal friction likely to deform the body.
- a known alternative described in the document US 2,734,324 aims to set up a push plate on a movable carriage according to the direction of movement of the body, to accompany the movement of the part to be folded at the time of the lateral pushing carried out.
- a trolley makes successive trips between the boxes to be formed, inducing a reduction in the conveying rate of said boxes by increasing the spacing between two successive boxes, in order to give the trolley time to return to the initial position. after moving downstream.
- such a back and forth movement places great demands on the mechanics and motorization of such a trolley, generating jolts at the end of the stroke, which are all the more violent as the speed of movement is high in order to follow the conveying rate of the boxes to be formed.
- the invention aims to overcome the disadvantages of the state of the art by proposing a folding of the cover carried out by accompanying the movement of the plate, using a thrust surface provided movable on a fixed support relative to the trajectory of movement of the body to be formed.
- the invention also provides for folding accompanied by the tongue.
- the invention aims at a forming device of which at least the cover folding means have a movable contact surface in the direction of movement of the plate.
- folding means extend longitudinally, applying a distributed force in contact with part of the length of the cover.
- the moving surface in the form of a belt driven at the speed of movement of the body makes it possible to follow its progress without inducing collision (shock) or deformation at the time of contact and support to carry out the folding, while avoiding harmful back and forth.
- Said support surface may comprise a plurality of motorized wheels in said direction of movement.
- the forming device may comprise at least one controller controlling in a synchronized manner, at least the actuation of the movement of said support surface and its mobility in said direction of movement, relative to the drive of said conveyor (3).
- Said folding means may comprise a fixed structure, said support surface being pivotally mounted in an angular rotation from said initial at least vertical position to said deployed position, and vice versa.
- the forming device may comprise means for folding said tongue provided with a wheel with a support periphery following a folding trajectory of said tongue, when said wheel is actuated in controlled angular rotation.
- Said support periphery may have a spiral curve.
- the term “plate” includes the cardboard plate in the form of flat cutting, but also throughout the folding stages when the box is partially formed, up to obtain a fully formed container 1.
- the term “container” corresponds to a fully formed cardboard box, namely after folding its horizontal flaps.
- the present invention relates to the forming of container 1 by folding of cardboard plate 100.
- a container 1 can be in the form of a cardboard box as visible on the Figure 5 .
- a container 1 is intended for packaging products.
- a container 1 has a rectangular parallelepiped shape, with an interior volume capable of receiving a group of products, staggered but preferably arranged in a matrix in columns and rows, or even several groups of superimposed products.
- a product is an individual object of the container type, such as a bottle or a flask, or a can, or even a cardboard brick.
- Several products can also be grouped, positioned within a carton (or “cluster”) and/or packaged in film.
- a product can be made of any type of material, in particular in plastic, metal or even glass material.
- a product can be rigid or semi-rigid.
- Such a container is intended to contain, in a non-exhaustive manner, a fluid, a liquid, powders or granules, in particular of the food or cosmetic type.
- a product can have any type of shape, symmetrical or not, regular or irregular.
- containers 1 As mentioned previously, the automated production of containers 1 is carried out by folding from previously pre-cut and pre-formed cardboard plates 100, also called “cuts”.
- the invention particularly aims at forming a container 1, in particular continuously, by folding a cardboard plate 100. Such continuous forming is carried out by circulation of a cardboard plate 100 along an installation dedicated to product packaging.
- circulation takes place in a direction of movement, in particular visible on the Figure 7 .
- This direction of movement extending longitudinally along the installation, in particular in a direction from upstream to downstream.
- the following description of possible positions is understood in relation to this direction of movement, in particular concerning the terms “on either side", “on the right” or “on the left”.
- Such an installation comprises several successive stations, involved in folding the different parts of each plate 100, synchronously following its movement, until a corresponding container 1 is obtained.
- One or more stations of the installation can be or form part of a device 2 for forming a container 1 by folding a cardboard plate 100 according to the invention.
- a forming device 2 is dedicated to the folding of the tongue 105 taking place approximately at the same time or before the folding of the cover 104 of said plate 100.
- said plate 100 comprises at least one tongue 105 and a cover 104.
- the forming device 2 or a station located upstream can ensure the folding of other parts of the plate 100, such as the simultaneous folding of the left side walls 102 and right 103, then said device 2 or another station located downstream can ensure the folding of the vertical flaps 106 followed by the folding of the horizontal flaps 107.
- the folding of the tongue 105 and the folding of the cover 104 can be carried out before, during or after the folding of the side walls 102,103.
- a station ensures the supply of products, preferably grouped, as well as 100 flat cardboard plates.
- Such a feeding station in particular deposits the products on the upper face of the bottom 101 of each plate 100.
- the forming device 2 comprises at least one conveyor 3.
- the latter extends substantially horizontally, receiving each plate 100 on the upper face. It can be of any type, preferably with an endless belt.
- said endless belt can be in the form of a belt, be chain(s) or belt(s). Said conveyor 3 therefore drives said plate 100 in said direction of movement, as well as the products thus transported on the plate 100.
- This conveyor 3 can extend over all or part of the installation, in particular from the feeding station.
- the forming device 2 comprises means 4 for folding said tongue 105.
- the forming device 2 comprises means 5 for folding down said cover 104.
- such a forming device 2 can only comprise folding means 5, without necessarily folding means 4, particularly in the case where a plate 100 does not have a tongue 105.
- said tab 105 secured to the side wall opposite the cover 104, can be folded just before the cover 104 is folded down, or the cover 104 is folded down and then the tongue 105, also called the “outer tab” secured to the latter, is folded to cover the corresponding side wall.
- the folding means 5 fold the cover 104 to cover the tongue 105 which has been at least partially folded beforehand.
- the folding means 4 can be positioned upstream or downstream relative to the folding means 5, so that the folding of the tongue 105 occurs first or after the folding of the cover 104.
- the folding of the tongue 105 can occur simultaneously or almost simultaneously when the cover 104 is folded.
- the folding of the cover 104 can begin just after the start of the folding of the tongue 105, so that at the end of the folding, said cover 104 completes the folding by pressing on said tongue 105.
- the folding means 4 are located on one side, while the folding means 5 are located on the other side, relative to the conveyor 3.
- the folding means 4 are on the left side and the folding means 5 on the right side, depending on the direction of movement of the plate 100, but the reverse is also possible depending on the position of the cover 104 relative to the direction of movement.
- the folding means 4 and the folding means 5 are therefore located on either side of the plate 100 to be treated.
- the folding means 4 and the folding means 5 are located in the same longitudinal zone during which the operations of folding the tongue 105 and folding the cover 104 are carried out, offering two symmetrical thrusts on either side of the plate when applying the forces necessary to bend said tongue 105 and fold down the cover 104, limiting the risk of deformation.
- said folding means 4 comprise a wheel 40 with a support periphery following a folding path of said tongue 105, when said wheel 40 is actuated in controlled angular rotation.
- the shape of the wheel 40 is determined so that its periphery comes to bear against the exterior of the tongue 105 and that the rotation of the wheel 40 induces a trajectory authorizing the folding of the tongue 105 into it. pushing inward.
- the periphery of the wheel 40 can have an increasing radius with respect to the opposite direction of rotation: the peripheral edge then moves away from the center of rotation of the wheel 40, making it possible to push from the outside towards inside the tongue 105 against which the periphery rolls.
- the rotation of the wheel 40 is controlled with regard to its periphery, to roll on the surface of the tongue 105, said tongue 105 being pushed back as the plate 100 advances and the rotation of the said wheel 40. Therefore, it is necessary to synchronize the rotation speed of the wheel 40 in relation to the drive speed of the plate 100 by the conveyor 3. This rotation speed therefore also depends on the periphery of said wheel 40.
- a suitable controller not shown.
- the speed of each point on the periphery is substantially equal to the speed of movement of the plate 100, so as to keep any force interfering with said longitudinal movement of said plate 100 reduced.
- the speed of rotation of the wheel 40 can be fixed or variable, whether at the time of folding, or whether after folding a tongue 105 of a first plate 100 and before folding the tongue of the plate 100 next.
- the wheel 40 can be accelerated or decelerated at any time, in particular to reposition it angularly between two successive plates 100, or also to keep a constant peripheral speed.
- the folding of the tongue 105 takes place at a substantially orthogonal angle. Said wheel 40 therefore extends horizontally or substantially horizontally. From then on, the rotation of the wheel 40 induces a transverse thrust against the tongue 105 relative to the direction of movement of the plate 100.
- the wheel 40 is mounted on a shaft 41 driven in rotation by a suitable motor.
- said support periphery of the wheel 40 has a spiral curve.
- the wheel 40 generally has a spiral shape, resembling a snail.
- the spiral wheel 40 may include a dropout 42.
- the dropout 42 coincides with the end of the folding trajectory of the tongue 105 by the wheel 40.
- the periphery of the wheel 40 is not in contact with tongue 105. From the recess 42, the periphery of the wheel 40 deviates from the center of rotation and comes into contact with the outside of the tongue 105 and rolls by pushing it towards the inside, scrolling from said periphery until arriving again at said unhooked 42
- the folding means 4 provided with a wheel 40 make it possible to fold the tongue 105 while accompanying the movement of the plate 100, limiting the risks of deformation or incorrect folding during this operation.
- the folding means 5 comprise at least one support surface 50 with said cover 104.
- said support surface 50 is actuated in a movement from an initial position to a deployed position in folding down of said cover 104, and vice versa.
- the surface 50 is mobile to come into contact and push the cover 104 from the outside until it is completely folded down, namely at a right angle.
- the folding movement takes place essentially transversely, namely with at least one component extending horizontally or substantially horizontally, relative to the direction of movement of the plate 100 by conveyor 3.
- the surface 50 of the folding means 5 is retracted and does not interfere with the circulation of the plate 100.
- the surface 50 extends angularly on the exterior or opposite side to the conveyor, at most along a plane containing the cover 104 before folding.
- the surface 50 extends at least vertically or substantially vertically, as visible in cross section on the figure 8 .
- the orientation of the surface 50 can be adapted accordingly.
- said folding means 5 comprise a fixed structure 51.
- a structure 51 therefore serves as a chassis and can be attached to the ground or mounted on an element of the forming device 2, such as for example on the fixed part of the conveyor 3.
- said support surface 50 is movably mounted on the structure 51.
- the surface 50 is pivotally mounted relative to said structure 51 in an angular rotation from said initial position to said deployed position, and vice versa.
- the surface 50 is integral with a support 52 which rotates relative to the structure 51.
- the surface 50 is therefore tiltable, preferably with an angular travel of at least 90 degrees (90°).
- the support 52 can be mounted to rotate around at least one axis 53.
- said initial position is at least vertical.
- the folding means 5 can apply pressure against the folded cover 104, finally keeping it at least temporarily in place.
- said surface 50 is mounted in translation, namely transversely, in particular horizontally or substantially horizontally, relative to the structure 51.
- the invention provides for folding the cover 104 while accompanying the longitudinal movement of the plate 100.
- the folding of the cover 104 is carried out in synchronization with the advancement of the plate 100.
- said support surface 50 is movable in said direction of movement.
- the surface 50 is also movable along a longitudinal component.
- said support surface 50 comprises at least one endless belt 500 motorized in said direction of movement.
- such a belt 500 then extends longitudinally over a distance and moves at a speed depending on the drive speed of the plate 100, to come into contact with the surface of the cover 104 without generating friction capable of slow down the plate 100.
- the movement of the belt 500 therefore accompanies the cover 104 during its movement by the conveyor 3.
- the surface 50 moves relative to its support 52.
- the means 5 of folding include pinions or pulleys 501 on which said belt 500 are mounted. The pinions 501 are then mounted on the support 52.
- the folding means 5 comprise, internally between said pinions 501, along the surface 50, a guide 502 for counter-supporting said belt 500.
- a guide 502 makes it possible to stiffen the belt 500 from the inside between the pinions 501, opposite the supporting side, avoiding possible deformation in folding and ensuring perfect linearity of the surface 50 bearing against the external face of the cover 104.
- said supporting surface 50 comprises a plurality of motorized wheels in said direction of movement. In the corresponding embodiment, the wheels can then be mounted on the support 52 and all rotated at identical speeds.
- a suitable motorization allows the driving of the surface 50, in particular when it is in the form of the belt 500, via the rotational drive of the pinions 501, or in the form of motorized wheels.
- a motorization can be on-board, in particular within the support 52, but it is preferably carried out by servo-control with another motorization, such as that of the conveyor 3 or any other element of the forming device 2. This control can be carried out via a suitable mechanical transmission.
- the forming device comprises at least one controller controlling in a synchronized manner, at least the actuation of the movement of said support surface 50 and its mobility in said direction of movement, relative to the driving said conveyor 3.
- the controller therefore makes it possible to manage, on the one hand, the rotational movement of the support 52 of the surface 50, but also the drive speed of its belt 500, in relation to the forward speed of the plate 100 to be treated.
- such a controller can also manage the drive speed of the folding means 4, in particular the rotation speed of the wheel 40, as a function of the movement of the plate 100.
- Such a controller can conventionally include computer means and/or automatic means necessary for its operation and configuration by an operator.
- the forming device 2 may comprise means for holding the cover 104 in the folded position.
- Such holding means extend upstream from the folding means 5, from a location where the cover 104 has been folded down.
- the holding means make it possible to continue to apply the pressure once the plate 100 has been released from the folding means 5.
- Such holding means can be in the form of an upper belt extending horizontally, at a height corresponding to that of the plate 100 or the container 1 to be formed.
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Description
La présente invention entre dans le domaine du formage par pliage de plaques cartonnées en vue de former des conteneurs, pour y conditionner au moins un produit mais préférentiellement plusieurs produits.The present invention enters the field of forming by folding cardboard plates with a view to forming containers, to package at least one product but preferably several products.
Au sens de la présente invention, le terme « produit » englobe un objet individuel. Un tel produit est un récipient, comme une bouteille ou un flacon, ou bien une cannette, ou encore une brique cartonnée. De tels produits peuvent aussi être groupés, positionnés au sein d'une cartonnette (ou « cluster ») et/ou emballés dans un film. Un produit peut être en tout type de matériau, notamment en matériau plastique, en métal ou encore en verre. Un produit peut être rigide ou semi-rigide. Un tel récipient est destiné à contenir, de façon non exhaustive, un fluide, un liquide, des poudres ou des granulés, notamment de type agroalimentaire ou cosmétique. Un produit peut présenter tout type de forme, symétrique ou non, régulière ou irrégulière.For the purposes of the present invention, the term “product” encompasses an individual object. Such a product is a container, such as a bottle or flask, or a can, or even a cardboard brick. Such products can also be grouped, positioned within a carton (or “cluster”) and/or packaged in film. A product can be made of any type of material, in particular plastic, metal or even glass. A product can be rigid or semi-rigid. Such a container is intended to contain, in a non-exhaustive manner, a fluid, a liquid, powders or granules, in particular of the food or cosmetic type. A product can have any type of shape, symmetrical or not, regular or irregular.
De tels produits sont obtenus le long d'une ligne industrielle de production, subissant plusieurs traitement successifs en traversant des postes dédiés, comme par exemple le soufflage de bouteille ou flacon en matériau plastique, le remplissage et le bouchage, l'étiquetage, ou encore la stérilisation ou la pasteurisation. Une fois traités, les produits finis sont conditionnés par groupe en lots, les produits étant maintenus ensemble par un film plastique, notamment rétreint au travers d'une opération de fardelage, ou bien à l'intérieur de conteneurs.Such products are obtained along an industrial production line, undergoing several successive treatments passing through dedicated stations, such as for example the blowing of plastic bottles or vials, filling and capping, labeling, or even sterilization or pasteurization. Once processed, the finished products are packaged in groups in batches, the products being held together by a plastic film, in particular shrunk through a bundling operation, or inside containers.
De tels conteneurs peuvent se présenter sous la forme de caisses cartonnées ou « cartons » pour le conditionnement de produits. De tels cartons présentent une forme parallélépipédique rectangle, avec un volume intérieur à même de recevoir un groupe de produits, en quinconce mais préférentiellement disposés en matrice selon des colonnes et des rangées, voire plusieurs groupes de produits superposés.Such containers can be in the form of cardboard boxes or “cartons” for packaging products. Such boxes have a rectangular parallelepiped shape, with an interior volume capable of receiving a group of products, in a staggered pattern but preferably arranged in a matrix in columns and rows, or even several groups of superimposed products.
De manière connue, la confection automatisée de caisses cartonnées s'effectue par pliage à partir de plaques cartonnées préalablement prédécoupées et préformées, aussi appelées « découpes ».In a known manner, the automated making of cardboard boxes is carried out by folding from previously pre-cut and pre-formed cardboard plates, also called “cuts”.
En référence à la
La plaque 100 cartonnée comprend encore un couvercle 104, le long d'un bord longitudinal d'une des parois latérales, comme par exemple la paroi latérale droite 103. Le long d'un bord longitudinal opposé de l'autre paroi latérale, respectivement la paroi latérale gauche 102, la plaque 100 cartonnée comprend une languette 105. Alternativement, la languette 105 peut être fixée sur le couvercle 104, du côté opposé au bord longitudinal de jonction avec ladite une des parois latérales ; ladite languette 105 est alors communément appelée « patte extérieure ».The
A chaque extrémité, la plaque 100 cartonnée comprend des rabats, au moins au nombre de quatre, d'une part, des rabats verticaux 106 reliés aux parois latérales le long de leurs bords transversaux et, d'autre part, des rabats horizontaux 107 reliés au fond 101 et au couvercle 104 le long de leurs bords transversaux.At each end, the
En référence à la
Ensuite, au cours d'autres étapes successives, par chaque extrémité, les rabats verticaux 106 sont pliés orthogonalement, avec une dépose de colle en face extérieure, puis les rabats horizontaux 107 sont rabattus jusqu'à venir au contact des rabats verticaux 106 correspondants et de la colle déposée. La caisse cartonnée 1 est alors formée et entièrement fermée, comme visible sur la
On notera que le formage par pliage de la plaque 100 cartonnée s'effectue généralement avec des produits déjà préalablement groupés et positionnés en face supérieure du fond 101. Le pliage est donc réalisé autour des produits qui seront enfermés dans le conteneur 1 ainsi obtenu par pliage de la plaque 100 cartonnée. Cette opération d'encaissage est communément appelée « wrap » (pour « emballage » en anglais).It will be noted that the forming by folding of the
Plus avant, le formage d'un tel conteneur 1 à partir d'une plaque 100 peut s'effectuer de façon séquentielle, étape par étape, avec la plaque 100 arrêtée à chaque étape. Sur le type de machine concernée par l'invention, préférentiellement le formage s'effectue en continu, avec la plaque 100 circulant sur des convoyeurs traversants différents postes dédiés aux étapes successives de pliage des différentes parties de ladite plaque 100, à savoir d'abord le pliage simultané des parois latérales gauche 102 et droite 103, puis le pliage de la languette 105 survenant en même temps que le couvercle 104 soit rabattu jusqu'à former le volume du futur conteneur 1, puis le pliage des rabats verticaux 106, suivi du pliage des rabats horizontaux 107.Further, the forming of such a
L'invention vise tout particulièrement un formage en continu par pliage de plaque cartonnée en vue de former un conteneur ; spécifiquement le pliage des rabats verticaux d'une telle plaque cartonnée.The invention particularly aims at continuous forming by folding a cardboard plate in order to form a container; specifically the folding of the vertical flaps of such a cardboard plate.
Une telle opération de pliage est effectuée par un dispositif de formage comprenant plusieurs postes successifs dédiés à chacune des étapes de pliage susmentionnées. Au moins un convoyeur transporte en face supérieure chaque plaque cartonnée, selon un sens de déplacement, depuis l'amont vers l'aval, au travers des différents modules, jusqu'à au moins un convoyeur de sortie. En particulier, le dispositif de formage comprend des moyens de pliage de la languette et des moyens de rabattage du couvercle, agissant de façon synchronisée avec le déplacement de la caisse, en vue de plier d'abord la languette puis venir rabattre le couvercle en recouvrement. En particulier, la fin du pliage de la languette peut être opérée par la fin du rabattage du couvercle. De fait, ces opérations s'effectuent quasiment simultanément.Such a folding operation is carried out by a forming device comprising several successive stations dedicated to each of the aforementioned folding steps. At least one conveyor transports each cardboard plate on the upper side, in one direction of movement, from upstream to downstream, through the different modules, to at least one exit conveyor. In particular, the forming device comprises means for folding the tongue and means for folding the cover, acting synchronously with the movement of the box, with a view to first folding the tongue and then folding the covering cover . In particular, the end of the folding of the tongue can be carried out by the end of the folding of the cover. In fact, these operations are carried out almost simultaneously.
Dès lors, le moyen de pliage de la languette se trouve d'un côté du dispositif, tandis que les moyens de rabattage du couvercle se situent du côté opposé, à savoir à droite ou à gauche en fonction de la configuration de la plaque. Les moyens de pliage et de rabattage s'étendent dans une même zone en vue d'opérer ces traitements quasiment simultanément.Therefore, the means for folding the tongue are on one side of the device, while the means for folding the cover are on the opposite side, namely on the right or on the left depending on the configuration of the plate. The folding and folding means extend in the same area in order to carry out these treatments almost simultaneously.
Ces opérations de pliage et rabattage posent une difficulté de s'assurer que le bord distal du couvercle vienne parfaitement en alignement ajusté sur l'arête du côté opposé au niveau du pli de la languette. L'alignement doit être effectué au millimètre près, sur toute la longueur de la plaque.These folding and folding operations pose a difficulty in ensuring that the distal edge of the cover comes perfectly into adjusted alignment on the edge of the opposite side at the level of the fold of the tongue. Alignment must be carried out to the nearest millimeter, over the entire length of the plate.
De surcroît, le pliage de la languette et le rabattage du couvercle s'effectuent au-dessus du point de gravité, contrairement aux pliages préalables des parois latérales maintenues par les produits transportés en face supérieure de ladite plaque. Comme le haut de la plaque cartonnée est particulièrement souple, un pliage et un rabattage optimaux s'en trouvent considérablement complexifiés.In addition, the folding of the tongue and the folding of the cover are carried out above the point of gravity, unlike the prior folding of the side walls held by the products transported on the upper face of said plate. As the top of the cardboard plate is particularly flexible, optimal folding and folding is considerably complicated.
Dans ce contexte, un dispositif de formage connu comprend des moyens de pliage et de rabattage sous formes de rails fixés sur la structure du dispositif de formage. De tels rails présentent un profil incurvé, sensiblement hélicoïdal, s'étendant verticalement à une extrémité amont jusqu'à une extrémité aval horizontale. Ainsi, le déplacement de la plaque sur le convoyeur amène d'abord la partie aval de languette en contact contre la courbure du profilé des moyens de pliage et l'avancement le long dudit rail vient repousser la languette au fur et à mesure de l'avancement de la plaque. Le même système est appliqué pour le couvercle contre le rail des moyens de rabattage.In this context, a known forming device comprises folding and folding means in the form of rails fixed to the structure of the forming device. Such rails have a curved, substantially helical profile, extending vertically from an upstream end to a horizontal downstream end. Thus, the movement of the plate on the conveyor first brings the downstream part of the tongue into contact against the curvature of the profile of the folding means and the advancement along said rail pushes the tongue back progressively. advancement of the plate. The same system is applied for the cover against the rail of the folding means.
Une telle solution présente un inconvénient, du fait des contraintes appliquées sur la languette et le couvercle mobiles contre des rails fixes, induisant des torsions lors du pliage et du rabattage depuis la partie aval vers la partie amont de la plaque au cours de son déplacement. De telles torsions sont susceptibles de décaler le positionnement final de la languette et/ou du couvercle en recouvrement de la languette, modifiant l'équerrage du conteneur formé.Such a solution has a drawback, due to the stresses applied to the movable tongue and cover against fixed rails, inducing twists during folding and folding from the downstream part to the upstream part of the plate during its movement. Such twists are likely to shift the final positioning of the tongue and/or the cover covering the tongue, modifying the squareness of the container formed.
En effet, une forme optimale, parallélépipédique rectangle, respectant l'orthogonalité des parois, est importante et doit être optimale, d'une part, pour l'aspect esthétique et le bon conditionnement des produits, mais surtout d'autre part, lorsque plusieurs conteneurs doivent être superposées, notamment sur des palettes. Une déformation d'une seule caisse est susceptible de déséquilibrer un empilage de conteneurs, rendant leur manutention précaire et dangereuse pour les opérateurs.Indeed, an optimal shape, rectangular parallelepiped, respecting the orthogonality of the walls, is important and must be optimal, on the one hand, for the aesthetic appearance and the good packaging of the products, but above all on the other hand, when several Containers must be stacked, particularly on pallets. A deformation of a single box is likely to unbalance a stack of containers, making their handling precarious and dangerous for operators.
En outre, un mauvais pliage de la languette, mais surtout un rabattage décalé du couvercle peut déplacer les produits, en particulier dans le cas de produits légers et glissants, comme des cannettes métalliques. Un tel déplacement des produits par rapport au volume intérieur de la plaque partiellement formée, est susceptible d'interférer avec les étapes ultérieures de pliage des rabats verticaux suivi du pliage des rabats horizontaux.In addition, incorrect folding of the tab, but especially an offset folding of the lid can move the products, particularly in the case of light and slippery products, such as metal cans. Such a movement of the products relative to the interior volume of the partially formed plate is likely to interfere with the subsequent steps of folding the vertical flaps followed by folding the horizontal flaps.
Il a donc été imaginé un dispositif de formage comprenant des moyens de pliage et des moyens de rabattage sous forme de poussoirs horizontaux, dont le déploiement s'effectue transversalement, l'extrémité de chaque poussoir venant en appui, d'un côté, contre la languette et, du côté opposé, contre le couvercle, avec un décalage respectivement des uns par rapport aux autres selon le sens de déplacement du conteneur, afin d'assurer le pliage en premier la languette, puis de rabattre le couvercle. Si un tel formage par poussée diminue les torsions, il pose toujours l'inconvénient d'appliquer une force d'appui s'étendant transversalement et horizontalement par rapport au défilement longitudinal en vis-à-vis de la plaque, pouvant induire un effort de friction longitudinal susceptible de déformer la caisse.A forming device has therefore been designed comprising folding means and folding means in the form of horizontal pushers, the deployment of which takes place transversely, the end of each pusher coming to bear, on one side, against the tab and, on the opposite side, against the lid, with an offset respectively from each other according to the direction of movement of the container, in order to ensure the tab is folded first, then the lid is folded. If such pushing forming reduces twisting, it always poses the disadvantage of applying a support force extending transversely and horizontally relative to the longitudinal movement opposite the plate, which can induce a force of force. longitudinal friction likely to deform the body.
Une alternative connue décrite dans le document
L'invention a pour but de pallier les inconvénients de l'état de la technique en proposant un rabattage du couvercle effectué en accompagnant le déplacement de la plaque, en utilisant une surface de poussée prévue mobile sur un support fixe par rapport à la trajectoire de déplacement de la caisse à former.The invention aims to overcome the disadvantages of the state of the art by proposing a folding of the cover carried out by accompanying the movement of the plate, using a thrust surface provided movable on a fixed support relative to the trajectory of movement of the body to be formed.
Ledit but est atteint avec un dispositif comprenant les caractéristiques selon la revendication 1.Said goal is achieved with a device comprising the characteristics according to
De façon subsidiaire, l'invention prévoit aussi un pliage accompagné de la languette. Pour ce faire, l'invention vise un dispositif de formage dont au moins les moyens de rabattage du couvercle présentent une surface de contact mobile selon le sens de déplacement de la plaque.Alternatively, the invention also provides for folding accompanied by the tongue. To do this, the invention aims at a forming device of which at least the cover folding means have a movable contact surface in the direction of movement of the plate.
En outre, de tels moyens de rabattage s'étendent longitudinalement, appliquant une force répartie en appui au contact d'une partie de la longueur du couvercle.In addition, such folding means extend longitudinally, applying a distributed force in contact with part of the length of the cover.
Par ailleurs, ces moyens de rabattage peuvent être montés en rotation, suivant la course angulaire du couvercle en pivotement autour ou parallèlement à sa ligne de pliage. Ainsi, selon l'invention, le dispositif de formage par pliage de plaque cartonnée, ladite plaque comprenant au moins un couvercle et notamment une languette, comprenant au moins :
- un convoyeur entraînant ladite plaque cartonnée selon une direction de déplacement ;
- des moyens de rabattage dudit couvercle ;
- lesdits moyens de rabattage comprenant au moins une surface d'appui avec ledit couvercle, ladite surface d'appui étant actionnée selon un mouvement depuis une position initiale vers une position déployée en rabattage dudit couvercle, et inversement. Un tel dispositif de formage se caractérise par le fait que
- ladite surface d'appui est mobile selon ladite direction de déplacement ;
- ladite surface d'appui comprenant au moins une courroie sans fin motorisée selon ladite direction de déplacement.
- a conveyor driving said cardboard plate in a direction of movement;
- means for folding said cover;
- said folding means comprising at least one bearing surface with said cover, said bearing surface being actuated in a movement from an initial position to a deployed position in folding down of said cover, and vice versa. Such a forming device is characterized by the fact that
- said support surface is movable in said direction of movement;
- said support surface comprising at least one endless belt motorized in said direction of movement.
Dès lors, la surface mobile sous forme d'une courroie entraînée à la vitesse de déplacement de la caisse permet de suivre son défilement sans induire de heurt (choc) ou de déformation au moment du contact et de l'appui pour effectuer le pliage, tout en s'affranchissant d'aller-retour préjudiciables.Therefore, the moving surface in the form of a belt driven at the speed of movement of the body makes it possible to follow its progress without inducing collision (shock) or deformation at the time of contact and support to carry out the folding, while avoiding harmful back and forth.
Selon des caractéristiques additionnelles, non limitatives, lesdits moyens de rabattage peuvent comprendre :
- des pignons sur lesquels sont montés ladite courroie :
- intérieurement entre lesdits pignons, le long de la surface d'appui, un guide de contre-appui de ladite courroie.
- sprockets on which said belt is mounted:
- internally between said pinions, along the support surface, a counter-support guide for said belt.
Ladite surface d'appui peut comprendre une pluralité de roues motorisées selon ladite direction de déplacement.Said support surface may comprise a plurality of motorized wheels in said direction of movement.
Le dispositif de formage peut comprendre au moins un contrôleur commandant de façon synchronisée, au moins l'actionnement du mouvement de ladite surface d'appui et de sa mobilité selon ladite direction de déplacement, par rapport à l'entraînement dudit convoyeur (3).The forming device may comprise at least one controller controlling in a synchronized manner, at least the actuation of the movement of said support surface and its mobility in said direction of movement, relative to the drive of said conveyor (3).
Lesdits moyens de rabattage peuvent comprendre une structure fixe, ladite surface d'appui étant montée en pivotement selon une rotation angulaire depuis ladite position initiale au moins verticale vers ladite position déployée, et inversement.Said folding means may comprise a fixed structure, said support surface being pivotally mounted in an angular rotation from said initial at least vertical position to said deployed position, and vice versa.
Le dispositif de formage peut comprendre des moyens de pliage de ladite languette pourvus d'une roue avec une périphérie d'appui suivant une trajectoire de pliage de ladite languette, lorsque ladite roue est actionnée en rotation angulaire contrôlée. Ladite périphérie d'appui peut présenter une courbe en spirale.The forming device may comprise means for folding said tongue provided with a wheel with a support periphery following a folding trajectory of said tongue, when said wheel is actuated in controlled angular rotation. Said support periphery may have a spiral curve.
D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée qui va suivre des modes de réalisation non limitatifs de l'invention, en référence aux figures annexées, dans lesquelles :
- La
figure 1 représente schématiquement une vue en élévation d'un exemple d'une plaque cartonnée ; - La
figure 2 représente schématiquement une vue en perspective de ladite plaque cartonnée de lafigure 1 , après une première étape de pliage des parois latérales ; - La
figure 3 représente schématiquement une vue en perspective de ladite plaque cartonnée de lafigure 1 , après une deuxième étape de pliage du couvercle sur la languette ; - La
figure 4 représente schématiquement une vue en perspective de ladite plaque cartonnée de lafigure 1 , après pliage des rabats verticaux ; - La
figure 5 représente schématiquement une vue en perspective de ladite plaque cartonnée de lafigure 1 , après pliage des rabats horizontaux, ladite caisse étant alors formée ; - La
figure 6 représente schématiquement une vue en perspective d'un dispositif de formage selon un mode de réalisation, montrant notamment le convoyage de deux plaques partiellement formées avant et après pliage de languette puis rabattage du couvercle ; - La
figure 7 représente schématiquement une vue en élévation du dispositif de formage de lafigure 6 ; - La
figure 8 représente schématiquement une vue en coupe verticale du dispositif de formage de lafigure 7 , montrant notamment une première position d'alimentation d'une plaque partiellement formée avec une languette et un couvercle avant pliage ; - La
figure 9 représente schématiquement une vue similaire à lafigure 8 , dans une deuxième position de pliage de la languette et de début de rabattage du couvercle ; - La
figure 10 représente schématiquement une vue similaire à lafigure 9 , dans une troisième position après pliage complet de la languette et à la fin du rabattage du couvercle ; et - La figure 12 représente schématiquement une vue similaire à la
figure 10 , dans une quatrième position du couvercle rabattu.
- There
figure 1 schematically represents an elevation view of an example of a cardboard plate; - There
figure 2 schematically represents a perspective view of said cardboard plate of thefigure 1 , after a first step of folding the side walls; - There
Figure 3 schematically represents a perspective view of said cardboard plate of thefigure 1 , after a second step of folding the cover onto the tab; - There
Figure 4 schematically represents a perspective view of said cardboard plate of thefigure 1 , after folding the vertical flaps; - There
Figure 5 schematically represents a perspective view of said cardboard plate of thefigure 1 , after folding the horizontal flaps, said box then being trained; - There
Figure 6 schematically represents a perspective view of a forming device according to one embodiment, showing in particular the conveying of two partially formed plates before and after folding the tongue then folding the cover; - There
Figure 7 schematically represents an elevational view of the forming device of theFigure 6 ; - There
figure 8 schematically represents a vertical sectional view of the forming device of theFigure 7 , showing in particular a first feeding position of a partially formed plate with a tongue and a cover before folding; - There
Figure 9 schematically represents a view similar to thefigure 8 , in a second position for folding the tongue and starting to fold the cover; - There
Figure 10 schematically represents a view similar to theFigure 9 , in a third position after complete folding of the tongue and at the end of folding the cover; And - Figure 12 schematically represents a view similar to the
Figure 10 , in a fourth position of the folded cover.
Dans le cadre de la présente invention, sauf explicité autrement, on notera que le terme « plaque » englobe la plaque cartonnée sous forme de découpe à plat, mais aussi tout au long des étapes de pliage lorsque la caisse est partiellement formée, jusqu'à obtenir un conteneur 1 entièrement formé. De même, sauf stipulé autrement, le terme « conteneur » correspond à une caisse cartonnée entièrement formée, à savoir après pliage de ses rabats horizontaux.In the context of the present invention, unless explained otherwise, it will be noted that the term "plate" includes the cardboard plate in the form of flat cutting, but also throughout the folding stages when the box is partially formed, up to obtain a fully formed
La présente invention concerne le formage de conteneur 1 par pliage de plaque 100 cartonnée.The present invention relates to the forming of
Comme évoqué précédemment, un conteneur 1 peut se présenter sous la forme d'une caisse cartonnée comme visible sur la
On notera qu'un produit est un objet individuel de type récipient, comme une bouteille ou un flacon, ou bien une cannette, ou encore une brique cartonnée. Plusieurs produits peuvent aussi être groupés, positionnés au sein d'une cartonnette (ou « cluster ») et/ou emballés dans un film. Un produit peut être en tout type de matériau, notamment en matériau plastique, en métal ou encore en verre. Un produit peut être rigide ou semi-rigide. Un tel récipient est destiné à contenir, de façon non exhaustive, un fluide, un liquide, des poudres ou des granulés, notamment de type agroalimentaire ou cosmétique. Un produit peut présenter tout type de forme, symétrique ou non, régulière ou irrégulière.Note that a product is an individual object of the container type, such as a bottle or a flask, or a can, or even a cardboard brick. Several products can also be grouped, positioned within a carton (or “cluster”) and/or packaged in film. A product can be made of any type of material, in particular in plastic, metal or even glass material. A product can be rigid or semi-rigid. Such a container is intended to contain, in a non-exhaustive manner, a fluid, a liquid, powders or granules, in particular of the food or cosmetic type. A product can have any type of shape, symmetrical or not, regular or irregular.
Pour améliorer la visibilité des dessins, les produits n'ont pas été représentés sur les figures.To improve the visibility of the drawings, the products have not been shown in the figures.
Comme évoqué précédemment, la confection automatisée de conteneurs 1 s'effectue par pliage à partir de plaques 100 cartonnées préalablement prédécoupées et préformées, aussi appelées « découpes ».As mentioned previously, the automated production of
L'invention vise tout particulièrement un formage de conteneur 1, notamment en continu, par pliage de plaque 100 cartonnée. Un tel formage en continu s'effectue par circulation d'une plaque 100 cartonnée le long d'une installation dédiée au conditionnement de produits.The invention particularly aims at forming a
On notera qu'au sens de l'invention, sauf stipulé autrement, la circulation s'effectue selon une direction de déplacement, notamment visible sur la
Une telle installation comprend plusieurs postes successifs, intervenant pour le pliage des différentes parties de chaque plaque 100, en suivant de façon synchronisée son déplacement, jusqu'à obtenir un conteneur 1 correspondant.Such an installation comprises several successive stations, involved in folding the different parts of each
Un ou plusieurs postes de l'installation peuvent être ou faire partie d'un dispositif 2 de formage de conteneur 1 par pliage de plaque 100 cartonnée selon l'invention. Préférentiellement, un tel dispositif 2 de formage est dédié au pliage de la languette 105 s'effectuant approximativement en même temps ou avant le rabattage du couvercle 104 de ladite plaque 100. En somme, ladite plaque 100 comprend au moins une languette 105 et un couvercle 104.One or more stations of the installation can be or form part of a
Dès lors, le dispositif 2 de formage ou bien un poste situé en amont peut assurer le pliage d'autres parties de la plaque 100, comme le pliage simultané des parois latérales gauche 102 et droite 103, puis ledit dispositif 2 ou bien un autre poste situé en aval peut assurer le pliage des rabats verticaux 106 suivi du pliage des rabats horizontaux 107. En outre, le pliage de la languette 105 et le rabattage du couvercle 104 peuvent être effectués avant, en cours ou après le pliage des parois latérales 102,103.Therefore, the forming
Par ailleurs, en entrée de l'installation, un poste assure l'alimentation en produits, de préférence groupés, ainsi que des plaques 100 cartonnées à plat. Un tel poste d'alimentation vient notamment déposer les produits en face supérieure du fond 101 de chaque plaque 100.Furthermore, at the entrance to the installation, a station ensures the supply of products, preferably grouped, as well as 100 flat cardboard plates. Such a feeding station in particular deposits the products on the upper face of the bottom 101 of each
Ceci étant, selon l'invention, le dispositif 2 de formage comprend au moins un convoyeur 3. Ce dernier s'étend sensiblement horizontalement, recevant chaque plaque 100 en face supérieure. Il peut être de tout type, préférentiellement à bande sans fin. En outre, ladite bande sans fin peut se présenter sous forme d'un tapis, être à chaîne(s) ou à courroie(s). Ledit convoyeur 3 entraîne donc ladite plaque 100 selon ladite direction de déplacement, ainsi que les produits ainsi transportés sur la plaque 100. Ce convoyeur 3 peut s'étendre sur toute ou partie de l'installation, notamment depuis le poste d'alimentation.This being said, according to the invention, the forming
D'une part, préférentiellement, le dispositif 2 de formage comprend des moyens 4 de pliage de ladite languette 105.On the one hand, preferably, the forming
D'autre part, le dispositif 2 de formage comprend des moyens 5 de rabattage dudit couvercle 104.On the other hand, the forming
En outre, un tel dispositif 2 de formage peut comprendre uniquement des moyens 5 de rabattage, sans forcément des moyens 4 de pliage, notamment dans le cas où une plaque 100 est dépourvue de languette 105.Furthermore, such a forming
En fonction de la configuration de la plaque 100 cartonnée pourvue d'une languette 105, ladite languette 105, solidaire de la paroi latérale opposée au couvercle 104, peut être pliée juste avant le rabattage du couvercle 104, ou bien le couvercle 104 est rabattu et ensuite la languette 105, aussi appelée « patte extérieure » solidaire de ce dernier, est pliée en recouvrement de la paroi latérale correspondante.Depending on the configuration of the
Selon les modes de réalisation représentés sur les figures, les moyens 5 de rabattage plient le couvercle 104 en recouvrement de la languette 105 au moins partiellement pliée au préalable.According to the embodiments shown in the figures, the folding means 5 fold the
Dès lors, les moyens 4 de pliage peuvent être positionnés en amont ou en aval par rapport aux moyens 5 de rabattage, de sorte que le pliage de la languette 105 intervient en premier ou après le rabattage du couvercle 104.Therefore, the folding means 4 can be positioned upstream or downstream relative to the folding means 5, so that the folding of the
On notera que, dans le cas d'une languette 105 indépendante du couvercle 104, le pliage de la languette 105 peut intervenir simultanément ou quasiment simultanément lors du rabattage du couvercle 104. En effet, le rabattage du couvercle 104 peut commencer juste après le début du pliage de la languette 105, de sorte qu'à la fin du rabattage, ledit couvercle 104 vienne finir le pliage par appui sur ladite languette 105.It will be noted that, in the case of a
Dans un cas comme dans l'autre, les moyens 4 de pliage se situent d'un côté, tandis que les moyens 5 de rabattage de situent de l'autre côté, par rapport au convoyeur 3. Selon le mode de réalisation représenté sur la
En outre, les moyens 4 de pliage et les moyens 5 de rabattage se situent dans une même zone longitudinale pendant laquelle les opérations de pliage de la languette 105 et du rabattage du couvercle 104 sont effectuées, offrant deux poussées symétriques de part et d'autre de la plaque au moment d'appliquer les forces nécessaires pour plier ladite languette 105 et rabattre le couvercle 104, limitant les risques de déformation. Concernant les moyens 4 de pliage, ils peuvent être de tout type, comme par exemple un poussoir transversal horizontal ou une came.In addition, the folding means 4 and the folding means 5 are located in the same longitudinal zone during which the operations of folding the
Selon un mode de réalisation, lesdits moyens 4 de pliage comprennent une roue 40 avec une périphérie d'appui suivant une trajectoire de pliage de ladite languette 105, lorsque ladite roue 40 est actionnée en rotation angulaire contrôlée. En d'autres termes, la forme de la roue 40 est déterminée de sorte que sa périphérie vienne en appui contre l'extérieur de la languette 105 et que la rotation de la roue 40 induise une trajectoire autorisant le pliage de la languette 105 en la repoussant vers l'intérieur.According to one embodiment, said folding means 4 comprise a
En particulier, la périphérie de la roue 40 peut présenter un rayon croissant par rapport au sens inverse de rotation : le bord périphérique va alors en s'écartant par rapport au centre de rotation de la roue 40, permettant de pousser depuis l'extérieur vers l'intérieur la languette 105 contre laquelle la périphérie roule.In particular, the periphery of the
En outre, la rotation de la roue 40 est contrôlée au regard de sa périphérie, pour venir rouler en surface de la languette 105, ladite languette 105 étant repoussée au fur et à mesure de l'avancement de la plaque 100 et de la rotation de ladite roue 40. Dès lors, il est nécessaire de synchroniser la vitesse de rotation de la roue 40 par rapport à la vitesse d'entraînement de la plaque 100 par le convoyeur 3. Cette vitesse de rotation dépend donc aussi de la périphérie de ladite roue 40. Une telle gestion est opérée par un contrôleur adapté (non représenté). En particulier, la vitesse de chaque point de la périphérie est sensiblement égale à la vitesse de déplacement de la plaque 100, de manière à conserver diminuer tout effort interférent avec ledit déplacement longitudinal de ladite plaque 100.In addition, the rotation of the
La vitesse de rotation de la roue 40 peut être fixe ou variable, que ce soit au moment du pliage, ou que ce soit après pliage d'une languette 105 d'une première plaque 100 et avant le pliage de la languette de la plaque 100 suivante. En particulier, la roue 40 peut être accélérée ou décélérée, à n'importe quel moment, notamment pour la repositionner angulaire entre deux plaque 100 successives, ou aussi pour garder une vitesse périphérique constante.The speed of rotation of the
On notera que le pliage de la languette 105 s'effectue selon un angle sensiblement orthogonal. Ladite roue 40 s'étend donc horizontalement ou sensiblement horizontalement. Dès lors, la rotation de la roue 40 induit une poussée transversale contre la languette 105 par rapport au sens de déplacement de la plaque 100.It will be noted that the folding of the
La roue 40 est montée sur un arbre 41 entraîné en rotation par une motorisation adaptée.The
Préférentiellement, comme visible sur les
Comme visible sur les
Les moyens 4 de pliage pourvus d'une roue 40 permettent d'effectuer un pliage de la languette 105 en accompagnant le déplacement de la plaque 100, limitant les risques de déformations ou de mauvais pliage au cours de cette opération.The folding means 4 provided with a
Concernant les moyens 5 de rabattage, ils comprennent au moins une surface 50 d'appui avec ledit couvercle 104.Concerning the folding means 5, they comprise at least one
De plus, ladite surface 50 d'appui est actionnée selon un mouvement depuis une position initiale vers une position déployée en rabattage dudit couvercle 104, et inversement. En d'autres termes, la surface 50 est mobile pour venir au contact et pousser le couvercle 104 depuis l'extérieur jusqu'à le rabattre entièrement, à savoir à angle droit. En somme, le mouvement de rabattage s'effectue essentiellement transversalement, à savoir avec au moins une composante s'étendant horizontalement ou sensiblement horizontalement, par rapport à la direction de déplacement de la plaque 100 par le convoyeur 3.In addition, said
En outre, en position initiale, la surface 50 des moyens 5 de rabattage est escamotée et n'interfère pas avec la circulation de la plaque 100. En somme, selon une coupe transversale, la surface 50 s'étend angulairement du côté extérieur ou opposé au convoyeur, au plus le long d'un plan contenant le couvercle 104 avant rabattage. En particulier, en position initiale, préférentiellement, la surface 50 s'étend au moins verticalement ou sensiblement verticalement, comme visible en coupe transversale sur la
Dans un cas particulier, où le rabattage du couvercle 104 s'effectue avant ou pendant le pliage des parois latérales 102,103, alors l'orientation de la surface 50 peut être adaptée en conséquence.In a particular case, where the folding of the
Selon un mode de réalisation, lesdits moyens 5 de rabattage comprennent une structure 51 fixe. Une telle structure 51 sert donc de châssis et peut être rapportée au sol ou montée sur un élément du dispositif 2 de formage, comme par exemple sur la partie fixe du convoyeur 3.According to one embodiment, said folding means 5 comprise a fixed
Dès lors, ladite surface 50 d'appui est montée mobile sur la structure 51. En particulier, comme visible notamment sur les
Comme évoqué précédemment, ladite position initiale est au moins verticale.As mentioned previously, said initial position is at least vertical.
En outre, en position déployée, les moyens 5 de rabattage peuvent appliquer une pression contre le couvercle 104 rabattu, enfin de la maintenir au moins temporairement en place.Furthermore, in the deployed position, the folding means 5 can apply pressure against the folded
Alternativement, selon un autre mode de réalisation, ladite surface 50 est montée en translation, à savoir transversalement, notamment horizontalement ou sensiblement horizontalement, par rapport à la structure 51.Alternatively, according to another embodiment, said
Ainsi, lors du déploiement de la surface 50, elle pousse le couvercle 104, jusqu'à arriver en position déployée dans laquelle ledit couvercle 104 se retrouve rabattu, comme visible notamment en
Avantageusement, l'invention prévoit de rabattre le couvercle 104 en accompagnant le déplacement longitudinal de la plaque 100. En d'autres termes, le rabattage du couvercle 104 s'effectue en synchronisation avec l'avancement de la plaque 100.Advantageously, the invention provides for folding the
Pour ce faire, ladite surface 50 d'appui est mobile selon ladite direction de déplacement. En d'autres termes, la surface 50 est aussi mobile selon une composante longitudinale. Selon un mode de réalisation, notamment visible sur les
Selon un mode de réalisation, comme visible notamment sur les
En outre, une motorisation adaptée permet l'entraînement de la surface 50, notamment quand elle se présente sous forme de la courroie 500, par l'intermédiaire de l'entraînement en rotation des pignons 501, ou bien sous forme de roues motorisées. Une telle motorisation peut être embarquée, notamment au sein du support 52, mais elle est préférentiellement effectuée par asservissement avec une autre motorisation, comme celle du convoyeur 3 ou de tout autre élément du dispositif 2 de formage. Cet asservissement peut être effectué par l'intermédiaire d'une transmission mécanique adaptée.In addition, a suitable motorization allows the driving of the
Selon un mode préféré de réalisation, le dispositif de formage comprend au moins un contrôleur commandant de façon synchronisée, au moins l'actionnement du mouvement de ladite surface 50 d'appui et de sa mobilité selon ladite direction de déplacement, par rapport à l'entraînement dudit convoyeur 3.According to a preferred embodiment, the forming device comprises at least one controller controlling in a synchronized manner, at least the actuation of the movement of said
Dans le mode correspondant, le contrôleur permet donc de gérer, d'une part, le déplacement en rotation du support 52 de la surface 50, mais aussi la vitesse d'entraînement de sa courroie 500, par rapport à la vitesse d'avancement de la plaque 100 à traiter.In the corresponding mode, the controller therefore makes it possible to manage, on the one hand, the rotational movement of the
Comme évoqué précédemment, un tel contrôler peut également gérer la vitesse d'entraînement des moyens 4 de pliage, en particulier la vitesse de rotation de la roue 40, en fonction du déplacement de la plaque 100.As mentioned previously, such a controller can also manage the drive speed of the folding means 4, in particular the rotation speed of the
Un tel contrôleur peut classiquement comprendre des moyens informatiques et/ou des moyens automatiques nécessaires à son fonctionnement et à sa configuration par un opérateur.Such a controller can conventionally include computer means and/or automatic means necessary for its operation and configuration by an operator.
De façon subsidiaire, le dispositif 2 de formage peut comprendre des moyens de maintien du couvercle 104 en position rabattue. De tels moyens de maintien s'étendent en amont à partir des moyens 5 de rabattage, à partir d'un emplacement où le couvercle 104 a été rabattu. Les moyens de maintien permettent de continuer d'appliquer la pression une fois la plaque 100 libérée des moyens 5 de rabattage.Alternatively, the forming
De tels moyens de maintien peuvent se présenter sous la forme d'une courroie supérieure s'étendant horizontalement, à une hauteur correspondant à celle de la plaque 100 ou du conteneur 1 à former.Such holding means can be in the form of an upper belt extending horizontally, at a height corresponding to that of the
Claims (6)
- A device for forming a container (1) by folding a cardboard sheet (100), said sheet comprising at least a lid (104) and notably a tab (105), comprising at least:- a conveyor (3) driving said cardboard sheet (100) in a direction of travel ;- means (5) for folding over said lid (104) ;- said folding-over means (5) comprising at least a pressing surface (50) for pressing on said lid (104), said pressing surface (50) being actuated in a movement from an initial position toward a deployed position of folding said lid (104) over, and vice versa ;
characterized in that- said pressing surface (50) is mobile in said direction of travel ;- said pressing surface (50) comprising at least an endless belt (500) motorized in said direction of travel. - The forming device (2) as claimed in the preceding claim, characterized in that said folding-over means (5) comprise :- pinions (501) on which said belt (500) is mounted :- internally between said pinions (501), along the pressing surface (50), a guide (502) against which the back of said belt (500) presses.
- The forming device (2) as claimed in either one of the preceding claims, characterized in that it comprises at least one controller controlling, in synchronized manner, at least the actuation of the movement of said pressing surface (50) and the mobility thereof in said direction of travel with respect to the driving of said conveyor (3).
- The forming device (2) as claimed in any one of the preceding claims, characterized in that said folding-over means (5) comprise a fixed structure (51), said pressing surface (50) being mounted with the ability to pivot on said structure (51) with an angular rotation from said at least vertical initial position to said deployed position, and vice versa.
- The forming device (2) as claimed in any one of the preceding claims, characterized in that it comprises means (4) for folding said tab (105), which means are provided with a wheel (40) having a pressing periphery following a folding path of said tab (105) when said wheel (40) is actuated in controlled angular rotation.
- The forming device (2) as claimed in the preceding claim, characterized in that said pressing periphery of the wheel (40) exhibits a spiral curve.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1911235A FR3101858B1 (en) | 2019-10-10 | 2019-10-10 | Folding container forming device and method |
PCT/EP2020/078364 WO2021069637A1 (en) | 2019-10-10 | 2020-10-09 | Device and method for forming a container by folding |
Publications (2)
Publication Number | Publication Date |
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EP4041539A1 EP4041539A1 (en) | 2022-08-17 |
EP4041539B1 true EP4041539B1 (en) | 2024-01-03 |
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EP20792565.2A Active EP4041539B1 (en) | 2019-10-10 | 2020-10-09 | Device and method for forming a container by folding |
Country Status (7)
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US (1) | US20240116261A1 (en) |
EP (1) | EP4041539B1 (en) |
CN (1) | CN114466798B (en) |
FR (1) | FR3101858B1 (en) |
HU (1) | HUE065854T2 (en) |
PL (1) | PL4041539T3 (en) |
WO (1) | WO2021069637A1 (en) |
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2019
- 2019-10-10 FR FR1911235A patent/FR3101858B1/en active Active
-
2020
- 2020-10-09 CN CN202080068006.6A patent/CN114466798B/en active Active
- 2020-10-09 US US17/767,708 patent/US20240116261A1/en active Pending
- 2020-10-09 PL PL20792565.2T patent/PL4041539T3/en unknown
- 2020-10-09 HU HUE20792565A patent/HUE065854T2/en unknown
- 2020-10-09 WO PCT/EP2020/078364 patent/WO2021069637A1/en active Application Filing
- 2020-10-09 EP EP20792565.2A patent/EP4041539B1/en active Active
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HUE065854T2 (en) | 2024-06-28 |
US20240116261A1 (en) | 2024-04-11 |
CN114466798A (en) | 2022-05-10 |
CN114466798B (en) | 2023-12-08 |
WO2021069637A1 (en) | 2021-04-15 |
EP4041539A1 (en) | 2022-08-17 |
FR3101858A1 (en) | 2021-04-16 |
FR3101858B1 (en) | 2021-10-29 |
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