EP3526024B1 - Verfahren und vorrichtung zum formen eines rohlings um eine spindel - Google Patents

Verfahren und vorrichtung zum formen eines rohlings um eine spindel Download PDF

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Publication number
EP3526024B1
EP3526024B1 EP17792122.8A EP17792122A EP3526024B1 EP 3526024 B1 EP3526024 B1 EP 3526024B1 EP 17792122 A EP17792122 A EP 17792122A EP 3526024 B1 EP3526024 B1 EP 3526024B1
Authority
EP
European Patent Office
Prior art keywords
mandrel
blank
panels
box
flaps
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
EP17792122.8A
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English (en)
French (fr)
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EP3526024A1 (de
Inventor
Didier Desertot
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.)
DS Smith Packaging France SAS
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DS Smith Packaging France SAS
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Publication date
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Publication of EP3526024A1 publication Critical patent/EP3526024A1/de
Application granted granted Critical
Publication of EP3526024B1 publication Critical patent/EP3526024B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B31B50/282—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms involving stripping-off formed boxes from mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • 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
    • 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
    • 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
    • B31B50/06—Feeding sheets or blanks from stacks
    • 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
    • B31B50/07—Feeding sheets or blanks by air pressure or suction

Definitions

  • the present invention relates to a device for shaping a blank of sheet material around a mandrel, in order to obtain a box or part of a box with a polygonal section.
  • It also relates to a method of shaping a blank of sheet material.
  • This blank conventionally comprises a series of at least three flaps, namely two end flaps located on either side of at least one intermediate flap, said flaps being connected to each other by parallel fold lines and provided with side flaps connected respectively to said flaps by fold lines perpendicular to the fold lines connecting said flaps, the free edge of one of the end flaps being provided with a tongue connected to said end flap by a fold line parallel to the fold lines connecting said shutters.
  • the blank has three flaps, it makes it possible to obtain part of a box (lid or bottom). When it has at least four parts, it makes it possible to obtain a box.
  • an adhesive is deposited on the one hand, on two side flaps and on the other hand, on said tab of an end flap or near the free edge of the end flap opposite to said tab.
  • the flaps are wound around a mandrel with a polygonal section, the outer cross section of which corresponds to the inner cross section of the box to be obtained, the tongue is fixed against the free edge of the other end flap resting on the face top of the mandrel, and the flaps on the same side of said flaps are folded against a corresponding end face of the mandrel and then fixed to each other.
  • This invention finds a particularly important, although not exclusive, application in the field of reinforced corrugated cardboard boxes.
  • the shaping of the blank around the mandrel is carried out using a mobile unit capable of moving in translation, perpendicular to the plane of the blank, and comprising stops and articulated arms for winding the flaps and the tongue. around the mandrel, as well as actuators integral with the frame.
  • the object of the invention is to alleviate these drawbacks by proposing a device and a method for shaping a blank of sheet material around a mandrel making it possible to carry out this shaping with great precision, while being d 'a simplified design and / or implementation.
  • Part of a box is in particular a cover or a base.
  • the invention also relates to a method of shaping a blank of sheet material around a mandrel to obtain a box or part of a box with a polygonal section, said blank comprising a series of at least three flaps, with namely two end flaps on either side of at least one intermediate flap, said flaps being connected to each other by parallel fold lines and provided with side flaps, respectively connected to said flaps by fold lines perpendicular to the fold lines connecting said flaps, the free edge of one of the end flaps being provided with a tongue connected to said end flap by a fold line parallel to the fold lines connecting said flaps, method implementing a device provided with a frame and in which the blank being previously glued at a gluing station of the device, the flaps are wound around a mandrel with a polygonal section, the outer cross section of which corresponds to the inner cross section of the box or of the box part to be obtained, the tab is fixed against the free edge of the other end flap resting on the upper face of the mandrel, the
  • the invention also relates to a machine for forming a box or part of a box.
  • polygonal section comprising a gluing station in which a blank of sheet material, comprising a set of flaps connected to each other by parallel fold lines and provided with side flaps, respectively connected to said flaps by fold lines perpendicular to the fold lines connecting said flaps, the free edge of one of the end flaps of said set of flaps being provided with a tongue connected to said end flap by a fold line parallel to the fold lines connecting said flaps, is glued at least with one hand on two side flaps and on the other hand on the tongue of an end flap or near the free edge of the end flap opposite said tongue and a forming station comprising the shaping device as described above.
  • the invention also relates to a method of forming a box or part of a box with a polygonal section from a blank comprising a set of flaps connected to each other by parallel fold lines and provided with side flaps. , respectively connected to said flaps by fold lines perpendicular to the fold lines connecting said flaps, in which the blank is glued in a gluing station and then shaped around a mandrel by implementing the shaping process described above.
  • the invention finally relates to a method of successive automatic forming of boxes or parts of boxes implementing a method of forming a box or part of a box according to the invention, in which forms the blank n - 1 during the sizing of the blank n.
  • the figure 1 shows a blank 1 made of double-sided corrugated cardboard, for example of low weight ( ⁇ 250 g / m2), for example 3 mm thick, intended to form a box.
  • first fold lines parallel to each other, namely a first central or reference fold line 8, two first lateral fold lines 9 and 10, and a first end fold line 11, junction with the tongue 7.
  • Flaps 3 and 6 are called end flaps and flaps 4 and 5, intermediate flaps.
  • the blank comprises, in a manner known in itself, a first set 12 of rectangular or substantially rectangular flaps 13 connected to the main flaps by second fold lines 14 perpendicular to the first and suitable for forming the top of the box after filling and a second set 15 of rectangular or substantially rectangular flaps 16a to 16d also connected to the main flaps by second fold lines 14 and suitable for forming the bottom of the box.
  • the method and the device according to the invention can also use variants of the blank illustrated at figure 1 and in particular a blank comprising rectangular main shutters interconnected by rectangular secondary shutters.
  • figures 2 to 5 describe a machine for forming a box with a polygonal section from the blank illustrated in figure 1 , this machine comprising a sizing device according to the embodiment of the invention more particularly described here, in particular with reference to the other figures.
  • This machine 20 comprises a frame or structure 21 forming a platform supporting independent subassemblies or modules, assembled to form a box from the blank illustrated in figure 1 .
  • These modules can be manufactured independently and then mounted on the frame 22.
  • the frame 21 provides the connection between the two end modules, namely the storage-unstacking module 30 and the extraction module 60.
  • an electrical cabinet may be provided which comprises a programmable controller for controlling the machine, known in itself.
  • the first storage-unstacking module 30 comprises a storage magazine 31 in the semi-vertical position of the blanks 1 to be formed.
  • This comprises two modular chains 32 driven by a system 33, comprising for example an asynchronous motor.
  • the chains 32 are for example coupled to a freewheel 34 and make it possible to maintain a blank ready to be fed in the front part 36.
  • the blanks are stored with the printed side facing the outside of the machine and the tab of the blank located on the right side of the machine in the direction of travel of the blanks.
  • This module 30 also includes means 35 (cf. figure 3 ) unstacking blanks 1 from the store 31.
  • the gluing module 40 comprises a gluing device with a flat support 41, such as a table, intended to receive a blank 1.
  • a flat support 41 such as a table
  • cleats 410 are provided which are fixed relative to the table, ensuring the positioning of the blank.
  • the gluing device also comprises a system of articulated arms 42 supporting a nozzle 420 positioned above the support.
  • the forming module 50 comprises a mandrel 51, that is to say a forming tool, around which the blank previously glued by the sizing device will be formed.
  • transfer means 43 comprising a system of articulated arms, located under the table 41 and capable of gripping a blank from below by means of aspiration.
  • the forming module 50 (cf. figure 4 ) for its part comprises two nacelles 52, 53, integral with the frame 21 and arranged on either side of the mandrel 51, transversely and symmetrically with respect to the direction of supply of the blank from the gluing station.
  • These nacelles comprise, in the example illustrated on the figures 2 to 5 , the means for winding the shutters and the means for fixing the tongue.
  • the extraction module 60 comprises an extraction station for extracting a box or part of a box with a polygonal section from the mandrel 51 where it has been formed, thanks to an extraction device 61, an evacuation station comprising the two conveyors 62, 63 as well as a station for transferring boxes or parts of boxes from the extraction station to the discharge station.
  • the forming module 50 will now be described in more detail with regard to figures 6 to 14 .
  • the figure 6 illustrates the mandrel 51 and the blank 1, previously glued at the gluing station 40.
  • the mandrel and the blank are here illustrated transversely to the direction of circulation of the blanks in the machine 20 and seen from the rear of the machine.
  • the tongue 7 is located on the right according to the direction of movement of the blank 1 inside the machine 20 and on the left on the figure 6 .
  • lines of adhesive have been deposited near the free edge of the shutter 3, as well as on the flaps 16a and 16c. These lines of adhesive have been applied to the upper face of the blank which is illustrated on figure 1 .
  • This upper face is the one facing the mandrel 51 on the figure 6 and it is opposite to the lower face which is the printed face of the blank.
  • the invention is not limited to this mode of implementation.
  • the lines of adhesive could be deposited on the lower face of the blank, that is to say the one facing the table 41, the printed side of the blank then constituting its upper face.
  • the blank 1 is moved from the gluing station 40 to under the mandrel 51 by transfer means 43 comprising a system of articulated arms.
  • the invention is not limited to this mode of implementation and the blank 1 could be moved from the gluing station 40 to the forming station 50 by conventional means moving linearly.
  • the figure 6 therefore illustrates the blank 1 after its positioning under the mandrel 51 thanks to the transfer means 43 and its recovery and its maintenance by support means 54 and 55, located under the mandrel 51 and on which the blank 1 bears by its face lower, when the means 43 have left the forming station to return to the gluing station.
  • these support means are in contact with at least part of the surface of the intermediate flap 5 and of the end flap 3.
  • Other solutions for supporting and / or maintaining the blank 1 can be envisaged without going beyond the scope of the present invention.
  • the figure 6 shows that the support means 54 located under the mandrel comprise two side blocks 540 and 541 and an intermediate support 542.
  • the mandrel 51 comprises an application face 510, intended to be facing the blank 1, an upper face 511, opposite the application face 510 on which the main flap 3 will be pressed, thus as side faces 512 and 513, on which the main flaps 4 and 6 will be wound, and an end face 514 on which the side flaps 16a to 16d will be folded.
  • the faces of the mandrel can be formed by plates or even by angle brackets, in a manner known per se.
  • the mandrel 51 has edges with cut corners so that the secondary flaps form the bevelled angles of the box obtained after forming.
  • the mandrel 51 is movable between a retracted position illustrated on figure 6 and a forming position, shown in figure 7 .
  • the distance between the application face 510 of the mandrel and its opposite face 511 is less than the width of the box which will be obtained from the blank 1.
  • This retracted position allows the transfer means 43 to pass the blank 1 between the application face 510 of the mandrel and the support means 54 and 55.
  • the outer cross section of the mandrel corresponds to the inner cross section of the box which will be obtained from the blank 1 and the face application 510 is in contact with the upper face of the blank 1.
  • the distance between the application face 510 and the opposite face 511 of the mandrel is adjustable, by means of suitable means such as jacks 515.
  • suitable means such as jacks 515.
  • the invention is however not limited to this embodiment and variants could be considered without departing from its framework.
  • side blocks 540, 541 are positioned facing the mandrel so that their outer face 5400, 5410 is substantially in line with a lateral face 512, 513 of the mandrel 51.
  • these two nacelles are integral with the frame 21 of the machine and are arranged on either side of the mandrel (not shown in FIG. figure 8 ), transversely and symmetrically with respect to the direction of supply of the blank from the gluing station.
  • the direction in which the blanks are fed inside the machine 20 is illustrated by the arrow F on the figure 8 .
  • the nacelle 52 is located on the side of the tongue 7 of a blank positioned under the mandrel, while the nacelle 53 will be positioned under shutters 3 and 4.
  • Each nacelle 52, 53 comprises a system of articulated arms 56, 57 produced identically.
  • this system of articulated arms 56, 57 comprises a pair of main arms 560, 570 interconnected by two axes 561, 571 and 562, 572.
  • These two axes 561, 562 and 571, 572 are spaced from one another and extend substantially longitudinally, that is to say in the direction of movement of the blanks in the machine 20.
  • Each main arm 560, 570 supports an intermediate arm 563, 573.
  • the two intermediate arms 563, 573 are, at one of their ends, mounted movable in rotation about the axis 562, 572 common to the two main arms 560, 570.
  • the intermediate arms 563, 573 are mounted to be able to rotate on an axis 564, 574 common to two secondary arms 565, 575.
  • the links 566, 576, respectively 567, 577 each double the main arms 560, 570, respectively each of the secondary arms 565, 575.
  • the end of the secondary arms 565, 575 and of the links 567, 577, opposite the intermediate arms 563, 573, is provided with support means 568, 578 for a side plate 521, 531 which has a sliding surface 522, 532.
  • These two sliding surfaces extend in a longitudinal plane, substantially parallel to the side faces 512 and 513 of the mandrel and perpendicular to the blank 1, when it is positioned under the mandrel 51. They are designed to ensure the winding of the shutter 6, 4 and its plating against the mandrel 51.
  • nacelles are designed to support all means allowing the formation of the box.
  • the nacelle 52 supports means 523 for breaking and folding the tab 7 around the fold line 11 and means 524 for securing the shutter 3 on the tab 7, once folded.
  • the means 523 are provided near the upper part 5220 of the sliding surface. They can be formed of an actuator having the shape of a comb with three teeth, each of them being able to pass through an orifice 5230.
  • the means 524 comprise two arms 5240 (second articulated arm) substantially parallel and having a general L shape.
  • These two arms 5240 are mounted in rotation on the side plate 521, around a common axis 5241 which extends substantially longitudinally, by the free end of the first branch of the L.
  • this axis 5241 is located at the rear of the side plate, relative to the sliding surface 522.
  • the arms 5240 support a plate 5242 which extends substantially perpendicular to the second branch of the L formed by the arms 5240.
  • the nacelle 52 also supports an articulated arm 525, located downstream of the folding means 523, in the direction of circulation of the blanks illustrated by the arrow F.
  • This articulated arm 525 is intended to fold the side flap 16a (in the upper position) against the end face 514 of the mandrel 51, in cooperation with the arm 534 of the nacelle 53 which will be described later.
  • the nacelle 53 for its part supports an assembly 533 for winding the main flap 4 around the mandrel.
  • This assembly comprises two arms 5330 which are substantially parallel and mounted in rotation about a common axis 5331 which is substantially longitudinal.
  • This axis 5331 is located substantially at the upper end 5320 of the sliding surface 532 of the side plate 531, opposite the support means 578.
  • the arms 5330 (first articulated arm) support a plate 5332.
  • the nacelle 53 also supports an articulated arm 534 which is intended to fold down the side flap 16a (in the upper position and opposite the flap 16c) on the end face 514 of the mandrel 51, in cooperation with the arm 525 of the nacelle 52.
  • This articulated arm is located downstream of the winding means 533 with respect to the direction of movement. blanks, represented by the arrow F. It is located substantially opposite the arm 525 of the nacelle 52.
  • each nacelle 52, 53 comprises means 526, 536 facing each other for folding the side flaps 16d and 16c, on the end face 514 of the mandrel.
  • These means 526, 536 can consist of a finger capable of passing through a lumen, 5260, 5360 and actuated by a set of three actuators controlled according to the size of the flaps 16d and 16c.
  • FIG 9 represents the nacelle 53, side view.
  • This figure 9 illustrates the side plate 531 which supports the plate 5332 and the arm 534.
  • the figure 9 shows the folding means 536 and their actuating means.
  • the nacelle 52 comprises means for driving the articulated arm system 56 which is similar.
  • the motors associated with each of these articulated arm systems are controlled so that the two articulated arm systems 56, 57 are driven by the same movement, when the shutters are wound on the mandrel.
  • the figure 10 illustrates the relative position of mandrel 51 and blank 1 before forming begins.
  • EP 0 334 707 which describes a method in which the winding of the blank begins while its plating against the mandrel has not been carried out.
  • the flap 5 is therefore in contact with the application face 510, while the flap 6 extends on the side of the nacelle 52 and the flaps 3 and 4 on the side of the nacelle 53.
  • the figure 11 illustrates an intermediate position between the folded position of the figure 10 and the deployed position of the figure 12 .
  • the upper part 5220 of the sliding surface 522 is in contact with the lower (printed) face of the shutter 6.
  • the movement of the sliding surface 522 causes the shutter 6 to be wound around the mandrel and its folding. around the fold line 10.
  • the upper part 5320 of the sliding surface 532 is in contact with the shutter 4, while the plate 5332 of the assembly 533 is in contact with the lower face of the shutter 3.
  • the movement of the sliding surface 532 makes it possible to wind the shutter 4 around the mandrel and to fold it around the fold line 8, the plate 5332 making it possible to keep the shutter 3 in the extension of the shutter 4.
  • the shutter 6 is pressed against the lateral surface 512 of the mandrel, thanks to the sliding surface 522.
  • the folding means 523 are actuated to fold the tongue 7, around the fold line 11. It is then in contact with the upper face 511 of the mandrel.
  • the sliding surface 532 of the nacelle 53 presses the shutter 4 against the lateral face 513 of the mandrel.
  • the 5330 arms rotate in counterclockwise around axis 5331 to fold flap 3 around fold line 9.
  • the folding means 526, 536 are actuated, so as to fold the side flaps 16d and 16b around the fold lines 14 to press them against the end face 514 of the mandrel.
  • the arms 525 and 534 are then actuated to fold the top flap 16a against the side flaps 16b and 16d already folded, by folding around the fold line 14.
  • the figure 14 illustrates the next step during which the movement of rotation of the arms 5240 continues around the axis 5241, so that the plate 5242 bears on the shutter 3 and secures it on the tongue 7, by pressing, thanks to to the adhesive present near the free edge of the shutter 3.
  • the folding means 523 would then not be actuated until after the assembly 533.
  • the flap 3 would be pressed first against the upper face 511 of the mandrel and then the tongue 7 would be folded around the fold line 11, thanks to the means 523.
  • the arms 5240 would be actuated so as to press the tongue 7 against the flap 3 to ensure their fixing by virtue of the adhesive present on the tongue.
  • the nacelle 53 can begin its movement towards the folded position.
  • the nacelle 52 will also begin its movement towards the folded position and the two nacelles 52 and 53 will then be in the folded position illustrated in figure 10 , the arms 5240 having tilted backwards, thanks to a movement of rotation in the anti-clockwise direction around the axis 5241.
  • the forming of a new blank around the mandrel 51 can then take place.
  • Means are also provided for folding the flap 16c around the fold line 14 and for fixing it against the flaps 16b and 16d already folded against the end face 514 of the mandrel.
  • all the means ensuring the shaping of the blank around the mandrel, the fixing of the tongue against the free edge of the end flap opposite the tongue and the folding of at least two flaps located on the same side of the flaps against one face end of the mandrel are carried by the nacelles 52, 53 and in particular by the side plates 521, 531.
  • the device according to the invention therefore does not require any adjustment to ensure its correct operation.
  • the fixing of the flaps 16a and 16c, provided with adhesive on their upper face, on the flaps 16b and 16d previously folded on the end face 514 of the mandrel ensures a fixing of the set of the four side flaps which is more solid than when the adhesive is present on the underside of the side flaps 16b and 16d and the flaps 16a and 16c are folded over them.
  • a first blank 1 is extracted and it is tilted horizontally.
  • lines of adhesive are deposited on at least two side flaps 16c and 16a, on the upper face of the blank, the lower face constituting the printed face of the blank.
  • the blank is then transferred from the gluing station to the forming station and, during this transfer, a line of adhesive is deposited near the free edge of the shutter 3 or on the tongue 7.
  • the blank 1 being positioned under the mandrel, it is wound around the mandrel, here by means of the two pods 52 and 53 described above.
  • the flap 3 is glued to the tongue 7 and the side flaps 16a and 16c are glued to the flaps 16b and 16d to form the bottom of the box on the end face 510 of the mandrel. The latter is turned towards the extraction module 60.
  • the latter extracts, by any suitable means, the box thus formed from the mandrel 51, so as to deposit it on one or other of the conveyors 62 or 63.
  • this method is implemented within the framework of a successive and automatic forming of boxes or parts of boxes, such that the blank n is glued during the forming of the blank n - 1.
  • the present invention is not limited to the embodiments more particularly described. On the contrary, it encompasses all the variants thereof and in particular those where the means for moving the blank under the mandrel are formed by a belt integral with the means for positioning the blank precisely for gluing.

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Claims (17)

  1. Vorrichtung zum Informbringen eines Zuschnitts (1) aus bahnförmigem Material um einen Dorn (51) herum, um eine Schachtel oder einen Schachtelteil mit polygonalem Querschnitt zu erhalten, wobei der Zuschnitt eine Folge von mindestens drei Teilen (3 bis 6) aufweist, und zwar zwei Endteile (3, 6) beidseits mindestens eines Zwischenteils (4, 5), wobei die Teile über parallele Faltlinien (8 bis 10) miteinander verbunden sind und mit seitlichen Klappen (13, 16a bis 16d) versehen sind, die jeweils mit den Teilen über Faltlinien (14) verbunden sind, die senkrecht zu den die Teile verbindenden Faltlinien (8 bis 10) verlaufen, wobei der freie Rand eines (6) der Endteile mit einer Lasche (7) versehen ist, die mit dem Endteil über eine Faltlinie (11) verbunden ist, die parallel zu den die Teile verbindenden Faltlinien verläuft, wobei der Zuschnitt (1) zuvor in einer Klebestation (40) zum einen an zwei Klappen (16a, 16d) und zum anderen an der Lasche (7) des Endteils oder in der Nähe des freien Randes des zu der Lasche entgegengesetzten Endteils (3) angeklebt worden sind, wobei die Vorrichtung umfasst:
    - einen Rahmen (21),
    - einen Dorn (51) mit polygonalem Querschnitt, dessen Außenquerschnitt dem Innenquerschnitt der zu erhaltenden Schachtel oder des zu erhaltenden Schachtelteils entspricht,
    - Wickelmittel zum Wickeln der Teile und der Lasche um den Dorn herum,
    - Befestigungsmittel zum Befestigen der Lasche an dem freien Rand des zur Lasche entgegengesetzten Endteils,
    - Umlegemittel zum Umlegen der Klappen, die sich auf derselben Seite der Teile befinden, auf eine entsprechende Endfläche des Dorns und,
    - Mittel zum Befestigen der so umgelegten Klappen aneinander,
    dadurch gekennzeichnet, dass die Wickelmittel zum Wickeln der Teile (522; 532, 533) und die Befestigungsmittel (524) zum Befestigen der Lasche von zwei Gondeln (52, 53) getragen werden, die fest mit dem Rahmen (21) der Vorrichtung verbunden sind und beidseits des Dorns (51) quer und symmetrisch in Bezug auf die Zuführrichtung des Zuschnitts von der Klebestation aus angeordnet sind.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Wickelmittel jeder Gondel Mittel (521, 531) umfassen, die mit einer Gleitfläche (522, 532) versehen sind, um ein Teil (3, 5) des Zuschnitts auf eine der beiden entgegengesetzten Seitenflächen (512, 513) des Dorns umzulegen, und bei der einen der Gondeln (53) Mittel (533), um einen Teil (6) umzulegen, und bei der anderen Gondel (52) Mittel (523), um die Lasche (7) um die Kante der oberen Fläche des Dorns herum umzulegen, wobei die Gondeln (52, 53) jeweils ein Gelenksystem (56, 57) umfassen, um die Wickelmittel vertikal und quer zu bewegen.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Mittel (533) zum Umlegen eines Teils (3) einen ersten Gelenkarm (5330) umfassen, der drehbeweglich an den mit einer Gleitfläche (532) versehenen Mitteln (531) montiert ist.
  4. Vorrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass die andere Gondel (52) auch die Befestigungsmittel (524) zum Befestigen der Lasche (7) trägt, wobei diese Mittel einen zweiten Gelenkarm (5240) aufweisen, der drehbar an den mit einer Gleitfläche (522) versehenen Mitteln (521) der Gondel montiert ist und mit Andrückmitteln (5242) zum Andrücken der Lasche an den freien Rand der gegenüberliegenden Endteils versehen ist.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zumindest ein Teil der Umlegemittel (525, 526; 534, 536) zum Umlegen der Klappen ebenfalls von den beiden Gondeln (52, 53) getragen wird.
  6. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass sie Trag- oder Haltemittel (54, 55) zum Tragen oder Halten mindestens eines Teils der Oberfläche eines Zwischenteils (4) des Zuschnitts (1) umfasst, und dadurch, dass der Dorn (51) eine Anlegefläche (510) zum Anlegen des Zwischenteils an die Trag- oder Haltemittel, Seitenflächen (512, 513) und eine zur Anlegefläche (510) entgegengesetzte obere Fläche (511) umfasst.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Dorn (51) zwischen einer ersten Position zum Formen der Schachtel oder des Schachtelteils, in der sein Außenquerschnitt dem Innenquerschnitt der zu erhaltenden Schachtel oder des zu erhaltenden Schachtelteils entspricht, und einer zweiten eingezogenen Position, in welcher der Abstand zwischen der Anlegefläche (510) des Dorns und seiner entgegengesetzten Fläche (511) geringer als die Breite der zu erhaltenden Schachtel oder des zu erhaltenden Schachtelteils ist, beweglich ist.
  8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass der Abstand zwischen der Anlegefläche (510) und der entgegengesetzten Fläche (511) des Dorns verstellbar ist.
  9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Kanten des Dorns gebrochene Ecken haben.
  10. Verfahren zum Informbringen eines Zuschnitts (1) aus bahnförmigem Material um einen Dorn herum, um eine Schachtel oder einen Schachtelteil mit polygonalem Querschnitt zu erhalten, wobei der Zuschnitt eine Folge von mindestens drei Teilen (3 bis 6) aufweist, und zwar zwei Endteile (3, 6) beidseits mindestens eines Zwischenteils (4, 5), wobei die Teile über parallele Faltlinien (8 bis 10) miteinander verbunden sind und mit seitlichen Klappen (13, 16a bis 16d) versehen sind, die mit den Teilen über Faltlinien (14) verbunden sind, die senkrecht zu den die Teile verbindenden Faltlinien (8 bis 10) verlaufen, wobei der freie Rand (6) eines der Endteile mit einer Lasche (7) versehen ist, die mit dem Endteil über eine Faltlinie (11) verbunden ist, die parallel zu den die Teile verbindenden Faltlinien verläuft, wobei das Verfahren eine Vorrichtung einsetzt, die mit einem Rahmen (21) versehen ist und in der, nachdem der Zuschnitt (1) in einer Klebestation (40) der Vorrichtung geklebt wurde, die Teile (3 bis 6) um einen Dorn (51) mit polygonalem Querschnitt herum gewickelt werden, dessen Außenquerschnitt dem Innenquerschnitt der zu erhaltenden Schachtel oder des zu erhaltenden Schachtelteils entspricht, und die Lasche (7) an dem freien Rand des anderen auf der oberen Fläche (511) des Dorns aufliegenden Endteils befestigt wird, wobei die Klappen, die sich auf derselben Seite der Teile befinden, auf eine entsprechende Endfläche des Dorns umgelegt und dann aneinander befestigt werden, dadurch gekennzeichnet, dass das Wickeln der Teile und der Lasche sowie das Befestigen der Lasche aus translatorischen und rotatorischen Bewegungen resultieren, die von Mitteln (522, 523, 524; 532, 533) ausgeführt werden, die von zwei fest mit dem Rahmen (21) der Formvorrichtung verbundenen Gondeln (52, 53) getragen werden, die beidseits des Dorns quer und symmetrisch in Bezug auf die Zuführrichtung des Zuschnitts von der Klebestation (40) aus angeordnet sind.
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass das Umlegen mindestens eines Teils der Klappen ebenfalls anhand von Mitteln (525, 526; 534, 536) ausgeführt wird, die von den Gondeln getragen werden.
  12. Verfahren nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass der Dorn (51) eine Anlegefläche (510) zum Anlegen des Zwischenteils (5) an Trag- oder Haltemittel (54) der Formmaschine für mindestens einen Teil der Oberfläche des Zwischenteils umfasst, wobei der Dorn in einer eingezogenen Position ist, in welcher der Abstand zwischen der Anlegefläche (510) des Zwischenteils und der entgegengesetzten oberen Fläche (511) des Dorns kleiner als die Breite der zu erhaltenden Schachtel oder des zu erhaltenden Schachtelteils ist, wenn der von der Klebestation (40) kommende Zuschnitt (1) unter dem Dorn positioniert wird, und in einer Formposition, in welcher der Außenquerschnitt des Dorns dem Innenquerschnitt der zu erhaltenden Schachtel oder des zu erhaltenden Schachtelteils entspricht, sobald der Zwischenteil auf den Trag- oder Haltemitteln ist, um den Zwischenteil (5) mittels der Anlegefläche (510) des Dorns an die Trag- oder Haltemittel (54) anzupressen.
  13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass der Zuschnitt (1) von der Klebestation (40) durch eine parallel zu den Faltlinien (8 bis 10) zwischen den Teilen des Zuschnitts gerichtete translatorische Bewegung unter den Dorn (51) geführt wird, wobei der Dorn (51) feststehend angeordnet ist.
  14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass der Zuschnitt durch Ansaugen mit den Mitteln (43), die seine translatorische Bewegung gewährleisten, fixiert wird, um seine präzise Positionierung unter dem Dorn zu gewährleisten.
  15. Maschine zum Formen einer Schachtel oder eines Schachtelteils mit polygonalem Querschnitt, umfassend eine Klebestation (40), in der ein Zuschnitt (1) aus bahnförmigem Material, der eine Anordnung von Teilen (3 bis 6) aufweist, die über parallele Faltlinien (8 bis 10) miteinander verbunden sind und mit seitlichen Klappen (13, 16a bis 16d) versehen sind, die über Faltlinien (14) mit den Teilen verbunden sind, die senkrecht zu den die Teile verbindenden Faltlinien (8 bis 10) verlaufen, wobei der freie Rand eines (6) der Endteile der Anordnung von Teilen mit einer Lasche (7) versehen ist, die über eine Faltlinie (11) mit dem Endteil verbunden ist, die parallel zu den die Teile verbindenden Faltlinien (8 bis 10) verläuft, mindestens zum einen an zwei seitlichen Klappen (16a, 16d) und zum anderen an der Lasche (7) eines Endteils (6) oder in der Nähe des freien Randes des zu der Lasche entgegengesetzten Endteils (3) geklebt wird, und eine Formstation (50), die eine Vorrichtung zum Informbringen nach einem der Ansprüche 1 bis 9 umfasst.
  16. Verfahren zum Formen einer Schachtel oder eines Schachtelteils mit polygonalem Querschnitt anhand eines Zuschnitts (1), der eine Anordnung von Teilen (3 bis 6) aufweist, die über parallele Faltlinien (8 bis 10) miteinander verbunden sind und mit seitlichen Klappen (13, 16a bis 16d) versehen sind, die jeweils mit den Teilen über Faltlinien (14) verbunden sind, die senkrecht zu den die Teile verbindenden Faltlinien (8 bis 10) verlaufen, bei dem der Zuschnitt in einer Klebestation (40) geklebt wird und anschließend unter Einsatz des Verfahrens nach einem der Ansprüche 10 bis 14 um einen Dorn (50) herum in Form gebracht wird.
  17. Verfahren zum automatischen sukzessiven Formen von Schachteln oder Schachtelteilen unter Einsatz eines Verfahrens nach einem der Ansprüche 10 bis 14, dadurch gekennzeichnet, dass der Zuschnitt n - 1 während des Klebens des Zuschnitts n geformt wird.
EP17792122.8A 2016-10-11 2017-10-09 Verfahren und vorrichtung zum formen eines rohlings um eine spindel Active EP3526024B1 (de)

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FR1659819A FR3057201B1 (fr) 2016-10-11 2016-10-11 Procede et dispositif de mise en forme d’un flan autour d’un mandrin.
PCT/FR2017/052758 WO2018069614A1 (fr) 2016-10-11 2017-10-09 Procede et dispositif de mise en forme d'un flan autour d'un mandrin

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CN113799432B (zh) * 2021-08-25 2023-06-16 广东信一科技有限公司 一种自动立体折盒机及折盒方法
CN114889210B (zh) * 2022-03-25 2023-09-26 什邡洪熙包装有限公司 一种防漏底酒盒生产装置

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US11097504B2 (en) 2021-08-24
JP2019529190A (ja) 2019-10-17
JP6985383B2 (ja) 2021-12-22
PH12019501052A1 (en) 2019-12-02
KR20190069489A (ko) 2019-06-19
WO2018069614A1 (fr) 2018-04-19
FR3057201B1 (fr) 2018-11-02
US20190232596A1 (en) 2019-08-01
FR3057201A1 (fr) 2018-04-13

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