EP4041539B1 - Dispositif et procede de formage de conteneur par pliage - Google Patents

Dispositif et procede de formage de conteneur par pliage Download PDF

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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
Application number
EP20792565.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4041539A1 (fr
Inventor
Damien Cirette
Arnaud PRIEUR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sidel Participations SAS
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Sidel Participations SAS
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Publication date
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Publication of EP4041539A1 publication Critical patent/EP4041539A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • 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.
EP20792565.2A 2019-10-10 2020-10-09 Dispositif et procede de formage de conteneur par pliage Active EP4041539B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1911235A FR3101858B1 (fr) 2019-10-10 2019-10-10 Dispositif et procédé de formage de conteneur par pliage
PCT/EP2020/078364 WO2021069637A1 (fr) 2019-10-10 2020-10-09 Dispositif et procede de formage de conteneur par pliage

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EP4041539A1 EP4041539A1 (fr) 2022-08-17
EP4041539B1 true EP4041539B1 (fr) 2024-01-03

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US (1) US20240116261A1 (zh)
EP (1) EP4041539B1 (zh)
CN (1) CN114466798B (zh)
FR (1) FR3101858B1 (zh)
WO (1) WO2021069637A1 (zh)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734324A (en) * 1956-02-14 chandler
FR1393541A (fr) * 1964-02-13 1965-03-26 Machine perfectionnée pour la fermeture de caisses en carton
US3535987A (en) * 1968-06-06 1970-10-27 Fibreboard Corp Apparatus and method for forming cartons
FR2171467A5 (zh) * 1972-02-01 1973-09-21 Giraudet Cartonnages Sa
DE19618177A1 (de) * 1996-05-07 1997-11-13 Mohrbach Maschinenfabrik Gmbh Vorrichtung zum Fertigen einer Faltschachtel mit einstückig angelenktem Klappdeckel
US8529421B2 (en) * 2010-01-19 2013-09-10 Richard J. Fallas Package flap folding method and apparatus
CN202491931U (zh) * 2012-01-20 2012-10-17 杭州永创智能设备股份有限公司 一种包装箱自动折盖成型机
US10668685B2 (en) * 2014-07-02 2020-06-02 Berg Industries Ab Folding arrangement, folding machine and method for folding
CN109094835A (zh) * 2018-05-29 2018-12-28 东莞市联洲知识产权运营管理有限公司 一种包装纸盒半自动扣盖设备
CN208813624U (zh) * 2018-09-30 2019-05-03 深圳创维－Rgb电子有限公司 一种纸箱摇盖折叠装置及封箱机

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Publication number Publication date
CN114466798B (zh) 2023-12-08
FR3101858A1 (fr) 2021-04-16
CN114466798A (zh) 2022-05-10
FR3101858B1 (fr) 2021-10-29
US20240116261A1 (en) 2024-04-11
EP4041539A1 (fr) 2022-08-17
WO2021069637A1 (fr) 2021-04-15

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