Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B50/005—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
  • B31B50/006—Controlling; Regulating; Measuring; Improving safety
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B50/02—Feeding or positioning sheets, blanks or webs
• • 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
• • 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
  • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
  • B31B50/146—Cutting, e.g. perforating, punching, slitting or trimming using tools mounted on a drum
• • 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
  • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
  • B31B50/20—Cutting sheets or blanks
  • B31B50/22—Notching; Trimming edges of flaps
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B50/60—Uniting opposed surfaces or edges; Taping
  • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
• • 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
  • B31B50/74—Auxiliary operations
  • B31B50/92—Delivering
• • 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
  • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
  • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
  • B65D65/38—Packaging materials of special type or form
  • B65D65/40—Applications of laminates for particular packaging purposes
  • B65D65/403—Applications of laminates for particular packaging purposes with at least one corrugated layer

Definitions

• the present invention relates generally to the field of packaging. More particularly, the invention relates to a line for manufacturing packaging in the form of folding boxes, from sheet elements, for example, corrugated cardboard.
• boxes, or boxes, cardboard are commonly made from plate elements in the form of sheets of cardboard or corrugated cardboard.
• the sheet elements are processed in a continuous flow in a packaging production line where they are printed, cut and upset, folded and assembled by gluing, to form the boxes.
• the plate elements 1 are introduced into the production line in a so-called "transverse" arrangement and are driven continuously in a drive direction DA.
• the plate element 1 is processed successively by a printing unit, a plate element shaping unit, formed here of a unit also known under the name "slotter”, and a folder-gluer unit.
• the printing unit provides printing, typically by flexography, of the plate element 1.
• the element printed plate 1a is then shaped by the shaping unit plate member which substantially realizes the scorelines 10 and 1 1 for Upset fold lines to create the body sides 12 and the flaps 13.
• the cut plate member 1b supplied by the plate member forming unit, is then folded and glued in the folder-gluer unit to obtain a package 1c in the form of a folding crate.
• a count-ejection unit receives the folding boxes 1 c and forms a stack of folding boxes 1 d which is then tied up.
• the tied stack 1 e then goes to a palletizer at the end of the manufacturing line of packaging.
• a plate element forming unit of the type described in document WO 2013/029768 makes it possible to achieve production rates of high cases, up to 20,000 cases / hour.
• This plate member forming unit has four pairs of cylindrical shafts which are arranged transversely to the driving direction of the plate members.
• the cylindrical shafts rotate at high speed and perform the various treatment operations on the plate elements.
• the majority of the folds and cuts are made in the direction of driving the plate members into the unit.
• the shapes and dimensions of the slits are determined by cutting tools, mounted on cylindrical tool-holder shafts, which provide rotary cutting.
• the movement of the plates is continuous between the cylindrical tool-holder shafts and the counter-tool cylindrical shafts.
• the cylindrical against-tool shafts are arranged in parallel and facing the cylindrical tool-holder shafts, to cooperate with the latter.
• Rotary cutting tools have laterally spaced blades arranged to slit at and from front and rear edges 14 and 15 of the plate member.
• the plate member shaping unit also includes laterally spaced rotary upsetting tools arranged to create the fold lines on the plate member.
• a lateral bonding tab 16 is also cut from the plate element, as an extension of the body sides 12. After folding, this tab is glued to the body side opposite, to form the folding box 1 C.
• specific tooling is provided in the plate element shaping unit, arranged so as to make two transverse cuts, or at an angle, with respect to the direction of drive of the plate. the plate member, as well as a first slit from the trailing edge and a second slit from the leading edge.
• Document EP2228206 describes a packaging manufacturing line comprising a shaping unit having several rotating shafts, on which the shaping tools are arranged. Sheets of cardboard boxes are shaped to produce two boxes of the same sheet. That is to say that the slitting and upsetting operations which define two distinct boxes are done on the same sheet. A cutting unit provided with knives is arranged upstream of the folding-gluing module.
• the invention relates to a packaging manufacturing line producing folding boxes from plate elements.
• the production line comprises:
• a plate element feeding station feeding the production line in continuous flow with the plate elements which advance in the production line in a driving direction
• a sheet element forming unit which successively shapes the sheet elements by slitting, upsetting and cutting operations, equipped with pairs of rotating cylindrical shafts, and a cutting unit, the forming unit and the cutting unit which cooperate to produce, in the shaped plate element, two juxtaposed folding box poses, arranged transversely with respect to the driving direction associated in series, and interconnected by attachment points ,
• folding-gluing unit which forms folded assemblies by folding and gluing the shaped plate elements
• a count-ejection unit which forms stacks of folded sets
• a folding box separation unit comprising means arranged so as to produce, by breaking the attachment points, two distinct lots of folding boxes stacked from each stack of folded sets, and in which the separation unit of folding boxes is arranged downstream of the folding-gluing unit in the driving direction.
• the present invention allows great flexibility in terms of the sizes of the cans produced.
• machines of the “Flexo-Folder-Gluer” type are used in the manufacture of corrugated cardboard boxes.
• the size of the carton produced depends on the size of the machine, and more particularly the size of the drive shafts to ensure good transport. Thanks to this process, it is possible to produce boxes smaller than the standard mini format, by carrying out the separation after shaping the boxes, thanks to the breaker located at the end of the line (for example, passage of 190mm thrust format instead of 250mm).
• This optimization of use in the folding and gluing module also allows for higher speed in production to increase the capacity and the number of boxes produced per hour.
• the shaping unit comprises two pairs of rotary cylindrical shafts cooperating to produce in each plate element central slits aligned on a transverse central axis of the plate element, and two pairs of shafts rotating cylindrical co-operating to achieve respectively rear edge slits of a rear installation of the two juxtaposed poses of the plate element and front edge slits of a front installation of the two juxtaposed poses of the plate element.
• the shaping unit comprises a pair of rotating cylindrical shafts arranged so as to carry out cutting operations of a body tab of a rear installation of the two juxtaposed poses of the plate element and fold line pre-upsetting operations in the two poses of the plate member.
• the shaping unit comprises a pair of rotating cylindrical shafts arranged so as to carry out cutting operations of a leg of a front laying of the two juxtaposed poses of the plate element, and of the upsetting operations of bending lines in the two poses of the plate element, and a pair of rotating cylindrical shafts arranged so as to carry out crushing operations in the two poses of the plate element.
• the shaping unit comprises first and second plate element processing units, associated in series, and having the same architecture with the pairs of rotary cylindrical shafts carrying a shaping tool and bushings by the plate elements.
• the first and second plate member processing units each comprise four pairs of rotating cylindrical shafts aligned and arranged transversely to the driving direction, the first and second processing units of plate member being associated to form an alignment of eight pairs of rotating cylindrical shafts.
• the first plate element processing unit comprises second and fourth pairs of rotary cylindrical shafts cooperating to produce in each plate element aligned central slits on a transverse central axis of the plate member
• the second plate member processing unit comprises second and fourth pairs of rotating cylindrical shafts cooperating to respectively perform rear edge slits of a rear laying of the two juxtaposed poses of the plate element and the front edge splits of a front pose of the two juxtaposed poses of the plate element.
• the first plate member processing unit comprises a third pair of rotating cylindrical shafts arranged so as to perform cutting operations of a leg. case of a rear installation of the two juxtaposed poses of the plate element and of the pre-upsetting operations of bending lines in the two poses of the plate element, and a first pair of rotating cylindrical shafts arranged so to carry out a drive of the plate element.
• the second plate member processing unit comprises a third pair of rotating cylindrical shafts arranged so as to perform cutting operations of a leg. case of a front installation of the two juxtaposed poses of the plate element and of the upsetting operations of bending lines in the two poses of the plate element, and a first pair of rotating cylindrical shafts arranged so as to produce crushing operations in the two poses of the plate element.
• the cutting unit is a rotary cutter with rotating cylindrical shafts.
• the folding box separator unit comprises two folding box separators arranged in series, one after the other.
• the line includes a printing unit located upstream of the plate member forming unit, relative to the drive direction.
• the line comprises a tying unit located upstream of the folding box separation unit, relative to the drive direction, the tying unit comprising two individual tying machines responsible for independently tying two sets of folding crates stacked in the stack of folded sets.
• FIG. 1 is a diagram showing a manufacturing process of prior art folding box packaging
• FIG. 2 is a block diagram showing a particular embodiment of a packaging manufacturing line according to the present invention.
• FIG. 3 is a diagram showing a manufacturing process for folding box packaging according to the present invention.
• FIG. 4 shows a diagram showing a general architecture of an element-to-plate forming unit integrated in the packaging production line of FIG. 1.
• the longitudinal direction is defined with reference to the direction of travel or drive of the plate elements in the packaging production line, along their median longitudinal axis.
• the transverse direction is defined as being the direction perpendicular in a horizontal plane to the direction of travel of the plate elements.
• the upstream and downstream directions are defined with reference to the direction of movement of the plate elements, along the longitudinal direction in the entire packaging manufacturing line, from the entry of the line to the exit of the line.
• the proximal and distal edges of the plate member are defined in this non-limiting example with respect to the driver side and the opposite conductor side of the machine and the plate member forming unit as the member is scrolling. in plate.
• FIG. 2 With reference to Figs. 2 to 4, there is now described by way of example a particular embodiment 2 of a packaging production line according to the invention, from plate elements, in the form of corrugated cardboard sheets.
• the plate elements in their different processing states are generally referenced by the reference 4 in Figs. 2 to 4, with index letters a, b, c and d associated with the reference mark 4 which indicate the processing state of the plate element considered.
• the plate element 4 is shown in FIG. 3 in different processing states, explained below, with references 4 a , 4 b , 4 C and 4 d .
• the packaging manufacturing line 2 comprises a plurality of units and equipment 20 to 33 which are synchronized on the same machine step, and which successively carry out the various operations necessary for the production of packaging in the form of folding boxes . All the units and equipment of the packaging manufacturing line 2 are controlled in synchronism by one or more control units 32 provided with man-machine interface means.
• the packaging manufacturing line 2 comprises in the embodiment essentially an automatic feed station of plate elements 20, a feeder 21, four groups flexographic printing 22 a to 22 d , a converting unit 33 with a plate element processing unit 23 and a cutting unit 24, a sheller-vibrator 25, a folder-gluer 26, a counter-ejector 27, a double tying machine 28, a folding box separation unit 29 and a palletizer 30.
• the plate member processing unit 23 in conjunction with the cutting unit 24 forms a plate member forming unit 33 (Figs. 2 and 4).
• Two conveyor tables 31 are arranged one after the other in this packaging manufacturing line 2, in order to obtain a change of direction of 180 degrees of the line to allow its installation on a limited floor area.
• Other configurations are possible, for example without any table so that the tied stack 1 st keeps the same straight direction up to the folding crate separation unit 29, or with a single table for a 90 degree change of direction of the tied pile 1 e .
• the automatic feed station of plate elements 20 has the function of supplying the packaging manufacturing line 2 with plate elements 4 a .
• the plate elements 4A are blank plate elements to be treated through line 2 to form the packaging.
• the plate member 4 has typically a rectangular sheet of cardboard.
• the plate elements 4a are inserted successively, one by one, in the manufacturing line of packages 2 at a rate corresponding to the pitch machine on which the various units are synchronized to the line 2.
• the plate member 4 a After being inserted into the line 2, the plate member 4 a is fed into the feeder 21.
• the feeder 21 performs an alignment operation and corrects, for example, a position of an edge of the plate member 4a in order to obtain the desired positioning for printing operations performed by the four printing units 22. a to 22 d .
• the printing units 22a to 22d made on the plate member 4 has a four-color printing, flexography, groups 22 a to 22 d each printing a different color on the plate member 4 has .
• the printing units 22 a to 22 d deliver at the output a printed plate element 4 b , visible in FIG. 3, which is fed into the plate member forming unit 33.
• the unit element forming plate 33 is associated with the cutting unit 24 for producing a plate member cut 4d formed of two poses P1 and P2, called “laying front” and “rear pose” respectively, from the printed plate element 4 b .
• the poses P1 and P2 are arranged juxtaposed, with respect to the drive direction FD, and are connected by attachment points 45.
• the attachment points 45 are aligned. on a transverse central axis AL of the plate element 4 d .
• Each pose P1 and P2 corresponds to a folding packing box.
• the element processing unit 23 processes the print plate plate member 4b, and provides a plate member cut 4 C.
• slitting and upsetting operations were performed to form body sides 40 and body flaps 41 for each of the poses P1 and P2.
• Other cutting operations have also been performed, such as an edge cut on a distal side edge 42 of the plate member and tab cuts, on the proximal opposite side edge 43, to form a body tab 44i and 44 2 for each of the poses P1 and P2.
• the plate element processing unit 23 realizes in a single machine step all the processing operations on the printed plate element 4 b , in order to obtain the cut plate element 4 C.
• the cutting unit 24 is typically a rotary cutter with rotary cylindrical shafts.
• the cutting unit 24 has the function of making the attachment points 45 between the poses P1 and P2 in the cut-out plate member 4 C supplied by the plate member processing unit 23, in order to obtain the cut sheet element 4 d .
• the plate element processing unit 23 is formed by the series association of two plate element processing units 23 a and 23 b , called “Slotter”, preferably having the same general architecture.
• the first unit 23a is penetrated before the second unit 23b by the plate member moving in the FD drive direction.
• the performance of the processing operations on the plate element is optimized, by distributing these processing operations judiciously between the two units 23 a and 23 b .
• the element plate processing units 23 a and 23 b are of the type with four pairs of rotary cylindrical shafts.
• the double plate element processing unit 23 formed by the association of the units 23 a and 23 b therefore comprises eight pairs of rotating cylindrical shafts, 230 a to 233 a for the unit 23 a and 230 b to 233 b for unit 23 b .
• the eight pairs of rotating cylindrical shafts, 230 a to 233 a and 230 b to 233 b are spaced apart by the same center distance AX, as shown in FIG. 4.
• the length of the center distance AX typically corresponds to a minimum size of sheet member that can be processed in the packaging production line 2.
• the first plate element processing unit 23 a makes central slits 46i 2 in the sheet. As shown in the cut-out plate element 4 C , the central slits 46i 2 are aligned in a transverse central axis AL of the plate element and participate in the formation of the body sides 40 and the body flaps 41 of the poses P1. and P2.
• the central slits 46i 2 are made here by the second and fourth pairs of rotary cylindrical shafts 231 and 233 that are equipped with suitable tools.
• the first plate element processing unit 23 a also performs first additional processing operations which include the cutting operations of the body tab 44 2 of the P2 installation and 47i 2 pre-upsetting operations for the production in particular of folding lines in the poses P1 and P2. These first complementary processing operations are carried out by tools mounted, for example, on the third pair of rotary cylindrical shafts 232 a of the first element plate processing unit 23 a.
• the first pair of rotary cylindrical shafts 230 a of the first element plate processing unit 23 has is used here to drive the sheet.
• the second element plate processing unit 23 b performs edge splits before 46i and rear edge of splits 46 2.
• the slits 46i are made on a transverse front edge 48AV of the plate element and participate in the formation of the body sides 40 and the body flaps 41 of the installation P1.
• the slits 46 2 are made on a transverse rear edge 48AR of the plate element and participate in the formation of the body sides 40 and the body flaps 41 of the installation P2.
• the front edge 46i and rear edge 46 2 slits are made here by the fourth and second pairs of rotating cylindrical shafts 233 b and 231 b , respectively, which are equipped with suitable tools.
• the second plate element processing unit 23 b also performs second additional processing operations which include cutting operations of the body tab 44i of the installation P1 and final upsetting operations 47i 2 for the realization including fold lines in poses P1 and P2. These second additional processing operations are carried out by tools mounted, for example, on the third pair of rotary cylindrical shafts 232 b of the second element processing unit plate 23 b.
• the first pair of rotating cylindrical shafts 230 b performs a third additional processing operation which is a crushing of the cardboard at the level of the crate legs 44i and 44 2 on the proximal lateral edge 43, as well as a crushing of the carton at the level of the opposite distal lateral edge 42.
• This crushing of the box legs 44i and 44 2 and of the opposite distal lateral edge 42 makes it possible to reduce the thickness and is intended to avoid an extra thickness in the folded and glued assembly 5 (Fig. 3), at the level of the gluing of the tabs 44i and 44 2 on their respective opposite distal lateral edge 42 of the corresponding body sides.
• the cut plate element 4 C is then fed into the cutting unit 24.
• Suitable tools are mounted in the rotary cylindrical shafts of the cutting unit 24 and perform selective cuts in the plate element. in order to obtain the attachment points 45.
• the cutting unit 24 outputs the cut-out plate element 4 d comprising the poses P1 and P2 connected only by the attachment points 45 as an output.
• the cut plate element 4 d leaving the cutting unit 24, is brought into the sheller-vibrator 25.
• the plate element is dusted and cleared of the waste generated in particular by the slitting and cutting operations.
• the plate member cut 4d is then fed into the folder-gluer 26.
• the cut plate element 4 d is folded and the box legs 44i and 44 2 are glued on the corresponding body sides to obtain the folded-glued assembly 5 formed of two boxes folding CA1 and CA2 connected by the attachment points 45, the two folding boxes CA1 and CA2, corresponding respectively to the poses P1 and P2.
• the counter-ejector 27 recovers the folded sets 5 successively exiting the folder-gluer 26, ensures a count of these and forms a stack of folded sets 6 comprising a determined number of folded sets. glued 5 superimposed. The stack of folded sets 6 is then fed into the double tying machine 28.
• the double tying machine 28 comprises two individual tying machines 28 a and 28 b responsible for independently tying the set of stacked folding boxes CA1 and the set of stacked folding boxes CA2.
• Two straps, or straps, strapping 70i and 70 2 are thus placed on the stack of folded sets 6, one 70i for the set of stacked folding boxes CA1 and the other 70i for the set of folding boxes CA2 stacked. There is thus obtained a string of folded sets 7 which is then fed into the folding case separation unit 29.
• the folding box separator unit 29 is formed by the series association of two folding box separators 29 a and 29 b , also known under the name of "breaker".
• the two successive folding crates separators 29 a and 29 b have the function to separate the stack of folded sets tied 7 in two batches of folding boxes stacked and tied 8 1 and 8 2, as visible in FIG. 3.
• the separation into two lots 8 1 and 8 2 is obtained by breaking the attachment points 45.
• the breaking of the attachment points is carried out in the separators 29 a and 29 b , by an automatic process involving, for example, a maintenance by pressure of the assembly of stacked folding boxes CA1 and of the assembly CA2 folding boxes stacked on two respective support panels and at a distance, or an inclination, between these support panels to cause rupture.
• the lots of folding boxes 8 1 and 8 2 are then taken care of by the palletizer 30 which automatically manages groups 9 (FIG. 2) on shipping pallets.
• the present invention makes it possible to double the production rate of folding boxes relative to the production line.
• prior art packaging described with reference to FIG. 1.
• the packaging manufacturing line 2 according to the invention makes it possible to achieve a folding box manufacturing rate of approximately 40,000 boxes / hour.

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• Engineering & Computer Science (AREA)
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Cited By (1)

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• 2019
  • 2019-03-08 FR FR1902388A patent/FR3093465A1/fr not_active Withdrawn
• 2020
  • 2020-03-06 US US17/310,963 patent/US20220152969A1/en active Pending
  • 2020-03-06 KR KR1020217031607A patent/KR102685232B1/ko active IP Right Grant
  • 2020-03-06 EP EP20709497.0A patent/EP3934902A1/fr active Pending
  • 2020-03-06 WO PCT/EP2020/025113 patent/WO2020182346A1/fr active Application Filing
  • 2020-03-06 CN CN202080019041.9A patent/CN113661054B/zh active Active
  • 2020-03-06 JP JP2021553292A patent/JP7206412B2/ja active Active

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