Classifications

• • 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
  • B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
  • B65D15/22—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of polygonal cross-section
• • 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
  • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D5/32—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
  • B65D5/326—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to a permanently assembled tube
  • B65D5/327—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to a permanently assembled tube at least two container body parts, each formed by folding a single blank to a permanently assembled tube
  • B65D5/328—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to a permanently assembled tube at least two container body parts, each formed by folding a single blank to a permanently assembled tube and the tubular body parts being alligned axially to form a container
• • 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
  • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D5/42—Details of containers or of foldable or erectable container blanks
  • B65D5/4204—Inspection openings or windows
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
  • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
  • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • 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
  • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B50/74—Auxiliary operations
  • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
  • B31B50/82—Forming or attaching windows

Definitions

• the present invention relates to the field of cardboard and more particularly to cardboard packaging having a plastic window or a flexible, transparent material.
• the behavior of the two materials is very different, in terms of flexibility, flexibility, resistance, ...
• the window is advantageously transparent. It can be cut from PVC, PET, PP, cardboard or any other material.
• WO2007116150 proposes a corrugated cardboard blank for the manufacture of a display case comprising a belt comprising at least four main rectangular shutters connected together in pairs by parallel fold lines, and provided with two sets of flaps located on either side, suitable respectively for forming at least partially the bottom and the top of the box, characterized in that the belt comprises a pre-cut transverse line for splitting the blank in two half-blanks, said transverse line determining on each side and for each parallel fold line, two separate fold line portions offset relative to each other to allow at least partly catching up thicknesses of cardboard during the coating of the second half-blank on the first half-blank around a mandrel.
• This patent application also describes a method for producing a polygonal box packing box from a corrugated sheet mono-blank, comprising a belt having at least four main rectangular flaps interconnected in pairs by parallel fold lines, and provided with two series of flaps located on either side, suitable for respectively forming at least partially the bottom and the top of the box, said belt comprising a pre-cut transverse line for splitting the blank into two half-blanks, characterized in after unstacking the blank, the two half-blanks are separated, the first half-blank is deposited in a transfer channel, the second half-blank is held in a plane greater than that of the said transfer channel, the first half-blank is transferred to a mandrel by gluing it in the passage, the first half-blank is wrapped around the mandrel, the transfer channel being then configured to allow the transfer of the second half blank, said second half-blank is lowered on the channel, the second half-blank is transferred to the mandrel
• US Patent Application US2143957 describing an example packaging comprising the combination of a transparent cellulose sheet tube or the like forming a tubular side wall, a pair of shaped elements formed of cardboard or the like, said elements of end comprising peripheral band portions adhesively attached to opposite ends of said tubular side wall and marked along lines extending parallel to the direction of said tubular side wall to provide elongated corner turns, and tabs of end closure hingedly connected to the package are filled with loose material and the package when so full Adequate for standing without support.
• US2139626 patent application provides a method of manufacturing a paper container, which comprises folding a rectangular blank, applying an adhesive to a side portion thereof, folding the edges of the blank roughing, so that the adhesive treated edge overlaps the opposite edge of the blank, exerting external pressure.
• the end closure blank has collapsible marginal portions projecting therefrom, the ends of said folded blank.
• the marginal portions being separated from each other by V-shaped spaces, said shaped spaces of V being formed by making an acute angular cut at each corner of the blank, bending the edge portions to provide recesses, applying an adhesive to the recessed portions of the finish closure, assembling the end closure to the body structure by inserting the end of said body structure into the recesses of the formed end closure and applying exerting external pressure to permanently seal said parts together.
• Patent Application 3372796 discloses an article package having opposed end portions with dissimilar outlines, a pair of capsules surrounding respective end portions of said article.
• the package comprises means for retaining said caps sealingly against said end portions.
• the object of the present invention is to propose a solution making it possible to manufacture such packagings in a flexible and reliable manner.
• - Cardboard blanks are prepared by cutting into a sheet two parts respectively corresponding to the plant shape of the first and second cardboard bottom joined by breakable zones of connection
• the blanks are arranged on a conveyor belt
• the transparent window is deposited to paste the edges on the corresponding edges of the parts thus repositioned.
• the blank is deposited on a conveyor belt so that the median line passing through the breakable zones is oriented perpendicular to the direction of movement of said conveyor belt, and in that said pressure rollers are arranged transversely.
• the method according to the invention controls the slowing down of the rear roller to cause the breaking of the connection zone and to create a longitudinal offset between the two parts separated by a distance corresponding to the height of the window.
• the method comprises a step of repositioning the two parts separated by a reworking module to ensure the realignment of the two separate parts.
• the invention also relates to an equipment for manufacturing a package consisting of two cardboard bottoms and a transparent window extending on the lateral faces between said cardboard bottoms, characterized in that it comprises a conveyor belt and two rollers squeezers whose rotation is controlled to cause the slowing of one of the rollers in contact with one of the parts relative to the roller in contact with the other part to cause the breaking of said breakable zones, and reposition the two parts in the spacing a distance corresponding to the height of the transparent window and a means for removing a transparent window and paste the edges on the corresponding edges of the parts thus repositioned.
• the equipment for manufacturing a package according to the invention further comprises a destacker for depositing the sidewalls on the conveyor belt and a destacker for delivering the windows.
• the equipment further comprises a retapler for realigning the cut and repositioned parts.
• the invention further relates to a package comprising two cardboard bottoms between which it has a plastic window characterized in that it is manufactured according to the aforementioned method. Detailed description of a non-limiting example of
• FIG. 1 represents a perspective view of a packaging box according to the invention
• Figure 2 shows a flat view of a packaging box
• FIG. 4 represents a view from above of a machine according to the invention
• Figure 1 shows an example of packaging comprising two funds (100, 200) cardboard and a window (300) disposed between the two cardboard funds (100, 200).
• the window (300) is typically cut from a PVC sheet, to which a grooving (302) is applied to to facilitate the folding and to avoid that during the shaping, the sheet of PVC, more rigid than the cardboard, does not come to tear the cardboard at a ridge, in the zone of connection of the cardboard and the PVC.
• the transparent window (300) may also have notches (301) at the edges at the fold lines (302) to prevent the stiffness of the PVC from creating a deformation exerting on the carton a pressure which may lead to a tear local.
• Figure 2 shows the assembly between the cardboard blanks (100; 200) and the window (300) prior to shaping.
• the manufacture of a packaging box according to the invention comprises the following main steps:
• a series of blanks formed of two blanks (100, 200) separated by a transverse space (150) and punctually connected by breakable zones (160) are cut in a cardboard sheet, and these blanks are stacked on a blank unstacker.
• the cardboard blanks are then driven one by one on a conveyor belt to a cut processing station.
• the cardboard cut is stuck, on at least part of its displacement, between the conveyor belt and a pair of rollers supported on the upper surface of the cut.
• the rollers initially rotate at a speed synchronous with the belt so as to ensure the displacement of the cut without speed differential between the lower part and the upper part.
• traction is then exerted on each of the blanks (100, 200) in opposite directions perpendicular to the median of the transverse space (150).
• This traction is achieved by changing the speed of both rollers, when positioned on either side of the breakable zone (160) of the blank. For example, the roller is slowed down behind this breakable zone, so as to create a force in a direction perpendicular to the breakable line.
• This effort causes breakage of the breakable areas (160) and allows to separate the two blanks (100, 200), to position them facing each other with a shift corresponding to the transparent sheet (300).
• a window is then superimposed with the two edges of the blanks (100, 200), an adhesive is deposited on the edge of the strips (110, 210) and the window is deposited on the glued area.
• FIG. 4 illustrates a particular example of equipment for implementing the method according to the invention.
• the equipment comprises a suction mat (1) running longitudinally.
• the blank (2) is deposited on this suction belt (1) by a destacker, and slides under pressure rollers (3 to 5).
• the blank (2) is then driven between the belt (1) and a motorized transverse roller (6).
• a belt rework module (7) separates the two blanks (100, 200) from the blank (2).
• the purpose of the equipment is to detach and separate, parallel to a predefined distance, the cardboard cut (2) consisting of two or three pieces held in them by breakable zones (160).
• a belting device (7) realigns in parallel the cardboard blanks (100, 200) on the suction belt (1) and ensures also the correct preprogrammed distance of the cuts (100, 200) between them.
• the pressure rollers (6) slow down while the front blank (200) of the cardboard blank (2) continues to advance at the same speed as the suction belt (1) and is maintained under pressure by the pressure rollers (3 to 5 ) on the carpet (1). After separation of the blanks (100, 200), the rollers (6) accelerate to return to the same speed as the belt (1) at a specific time, determined beforehand by the separation length of the two blanks (100, 200).
• the blanks (100, 200) separated advance to the belt rework module (7).
• the blanks (100, 200) are then realigned by the thrust and the retention of the straight edges of the two cardboard blanks (100, 200).
• the belting module (7) consists of two belt carriages connected in parallel.
• the two toothed belts are motorized by a splined shaft with ball bushing, allowing a lateral adjustment of each carriage.
• Each of the toothed belts is provided with a welded cleat.
• Each belt has a micro-adjustment device, which allows alignment of the two cleats in parallel or angular correction of the cardboard blanks.
• the synchronization settings of the cleats / at the position of the cuts, can be set on the machine's console.
• Principle for aligning 2 blanks (100, 200):
• Phase 1 The cleat pushes from the back the first blank (200) of the board separated previously upstream.
• Phase 2 Accompanying the thrust of the first blank (200) from 2 to 5 millimeters.
• Phase 3 Accompanying end of the thrust of the first blank (200) of the carton from 2 to 5 millimeters and return of the cleat rearwardly to come to be positioned on the front edge of the second blank (100).
• Phase 4 Slowing of the second blank (100) by 2 to 5 millimeters with respect to the belt (1), when the breakable zone is between the first and the second roll, then rotation of the cleat for preparing the next carton.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Making Paper Articles (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (7)

• 2016
  • 2016-06-09 FR FR1655280A patent/FR3052389B1/fr not_active Expired - Fee Related
• 2017
  • 2017-06-08 US US16/308,787 patent/US20190144160A1/en not_active Abandoned
  • 2017-06-08 CN CN201780035164.XA patent/CN109311562B/zh active Active
  • 2017-06-08 WO PCT/FR2017/051445 patent/WO2017212176A1/fr unknown
  • 2017-06-08 EP EP17734790.3A patent/EP3468882B1/de active Active

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