EP2809507B1 - Verfahren und vorrichtung zur herstellung eines wellpappkartons um einen dorn mit referenzkante - Google Patents

Verfahren und vorrichtung zur herstellung eines wellpappkartons um einen dorn mit referenzkante Download PDF

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Publication number
EP2809507B1
EP2809507B1 EP13706617.1A EP13706617A EP2809507B1 EP 2809507 B1 EP2809507 B1 EP 2809507B1 EP 13706617 A EP13706617 A EP 13706617A EP 2809507 B1 EP2809507 B1 EP 2809507B1
Authority
EP
European Patent Office
Prior art keywords
mandrel
stack
cut blank
cut
tongue
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
EP13706617.1A
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English (en)
French (fr)
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EP2809507A2 (de
Inventor
Didier Desertot
François LEBAULT
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DS Smith Packaging France SAS
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DS Smith Packaging France SAS
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Filing date
Publication date
Application filed by DS Smith Packaging France SAS filed Critical DS Smith Packaging France SAS
Priority to SI201331153T priority Critical patent/SI2809507T1/sl
Priority to HRP20181455TT priority patent/HRP20181455T1/hr
Priority to RS20181055A priority patent/RS57761B1/sr
Priority to PL13706617T priority patent/PL2809507T3/pl
Publication of EP2809507A2 publication Critical patent/EP2809507A2/de
Application granted granted Critical
Publication of EP2809507B1 publication Critical patent/EP2809507B1/de
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0883—Construction of suction grippers or their holding devices
    • 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
    • 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
    • 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
    • B31B50/04—Feeding sheets or blanks
    • B31B50/044—Feeding sheets or blanks involving aligning
    • 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
    • B31B50/066—Feeding sheets or blanks from stacks from above a magazine
    • 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
    • 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
    • B31B50/28—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
    • B31B50/624—Applying glue on blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes

Definitions

  • the present invention relates to a method for producing a box of corrugated sheet material from a blank comprising a series of at least four rectangular flaps terminated by a rectangular fastening tab and provided with lateral flaps intended for at least partially forming the bottom of the box, the latter being arranged to be mounted automatically by folding flaps and flaps around a mandrel of complementary shape inside the box, the end flap of the suite flaps and tongue on the one hand and the adjacent flaps on the other hand being fixed together by gluing to form the box.
  • It also relates to a device for producing a polygonal box.
  • Such methods generally include a step of feeding the cut to the mandrel empirically and adjustably and then wrapping around the mandrel with a degree of freedom sufficient so that the cut can be placed in such a way that the fold lines between the flaps are in front of the edges of the mandrel.
  • Such a positioning of the cuts around the mandrel can be done without too great a precision of positioning the cut on the faces of the mandrel given the adjustments that will be made during the coating.
  • the present invention aims to provide a method and a device that better than those previously known to the requirements of the practice, in particular that they will make it possible to overcome these means of inadvertent displacement of the various compression elements and complicated folding of the prior art, and while allowing a high rate, for example greater than 40 or 50 packages formed per minute and for an affordable and compact in the machine obtained.
  • the invention notably starts from the idea of not forming the box around a mandrel so that the face of the feed and / or the removal of the blank is always in the same plane relative to to the frame of the device, as in the prior art, but to position the cut relative to the edge or edges corresponding to the gluing tab which remain fixed relative to the frame of the machine (or what amounts to the same to its feed magazine) regardless of the size of the chuck.
  • the present invention notably proposes a method for producing a box of corrugated sheet material from a cut comprising a series of flaps comprising at least four rectangular main shutters terminated by a rectangular fastening tab, connected to each other by first folding lines parallel to each other, and a first set of lateral flaps arranged on one side and connected to the main flaps by second fold lines perpendicular to the first fold lines and intended to form at least partially the bottom of the box, said box being arranged to be mounted automatically by folding said flaps and flaps of said first set around a complementary shaped mandrel inside the box, the end flap of the flap suite and the tab on the one hand, and the adjacent flaps on the other hand, being fixed together by gluing to form said box, a process in which the flat blank is de-stained by taking the cut-out from above from a vertical storage magazine with a constant level of a stack of blanks, after gluing the tongue and the flaps, placing said cutout at a given location and bringing the main
  • the fold line of the tongue with the adjacent flap coincides with the lower or upper edge of the mandrel, also referred to subsequently as the reference edge.
  • the invention also proposes a device for producing a box of corrugated sheet material using a method as described above.
  • a device for producing a box of cardboard sheet material from a cut comprising a series of shutters comprising at least four rectangular main shutters terminated by a rectangular fixing tab, connected to each other by first fold lines parallel to each other, and a first set of side flaps arranged on one side and connected to the main flaps by second fold lines perpendicular to the first fold lines and intended to form at least partially the bottom of the box, said box being arranged to be mounted automatically by folding of said flaps and flaps of said first set around a mandrel of complementary shape inside the box, the end flap of the flap suite and the tongue on the one hand, and the adjacent flaps on the other hand, being fixed between them by gluing to form said box, the device comprising a magazine for vertical storage of flat blanks, unstacking means for cutting the top from said magazine by suction, sizing means, a robotic arm laying horizontally on a reference surface, the main flap adjacent to the main flap to which is connected directly or indirectly by an intermediate flap the fastening tab of
  • the supply means at a given location comprise a sucker removal arm of the main flap adjacent to the main flap to which is connected the fastening tab on the upper face of the mandrel.
  • the means of supplying the adjacent flap to which the flap is connected to the tongue fixing on the underside of said mandrel comprise a conveyor belt with lateral and longitudinal stops of the cut.
  • the device comprises telemetric measuring means for the position (p i ) of the cutout of the top and means for calculating the path of the unstacking means according to said position (p i ) arranged to control the displacement of said unstacking means between a cutting gripping position and a positioning position on a given work station, and for calculating during the time of moving the path for the next position (p i + 1 ) of cutting and so on.
  • the device comprises an elevator platform of the stack up to a gripping plane for cutting from above, pre-unstacking means arranged to separate the cutout from above the remainder of the stack and jogging means of said cutout to frame it and keep it separated from the rest of the stack in the gripping position by the unstacking means after erasing the Pre-unstacking means.
  • the holding means in the upper part of the stack when the cut of the bottom of the stack has reached a predetermined level are provided accompanied by setting means in place automatically a new battery.
  • the holding means in the upper part comprise pivoting free cleats in a sliding position along the stack, to adopt a position of support of the bottom of the stack under the effect of gravity when they arrive at the last cutting of the pile.
  • the device comprises means for assisting in detaching the cut-out from above the rest of the stack, by blowing rasping air on the top of the cut, for example by means of nozzles inclined with respect to the surface of the cut. cutting the top at a pressure between 1 and 2 bar relative.
  • stacked vertically By properly stacked vertically is meant stacked with a tolerance of positioning in the lateral offset of the cuts of plus or minus 1 cm, which is the general case with the cuts of a pallet rimmed in the usual way for its transport.
  • the cutter store is arranged to receive a loaded pallet, for example simply pushed on the elevator platform. The latter is then able to move said pallet vertically and the blanks that it supports up to an observation and / or gripping plane, with, for example, visual detection means allowing the triggering and / or stopping of unstacking sequences.
  • the figure 1 shows a blank 1 made of corrugated sheet material comprising a suite 2 of eight rectangular flaps terminated by a tab 3 of rectangular bonding attachment to an adjacent flap.
  • the rectangular flaps are interconnected by first folding lines 4 parallel to each other, the flaps being formed by four main rectangular flaps 5, namely two large flaps 5 and two smaller flaps 6 separated in pairs by four intermediate flaps. identical 7.
  • the cutout 1 also comprises a first set or set 8 of side flaps arranged on one side and connected to the main flaps by second folding 9 perpendicular to the first fold lines 4 and intended to form at least partially the bottom of the box, the intermediate flaps being devoid of flap.
  • Cutout 1 also has a second set of flaps substantially identical to the first set of flaps to form the top of the box.
  • a flap on two of the first and second games namely the flaps 11 and 12 respectively of the games 8 and 10 have on two lateral sides 13 at least partly at an outward bias portions flap from the second fold lines 9 or third fold lines 14 connecting the flaps of the second set 10 to the corresponding main flaps.
  • Each set of flaps 8 and 10 also has second rectangular side flaps connected to the small flaps by the second fold lines and third fold lines.
  • the flaps 11 and 12 further comprise elements 16 and 17, respectively, which will make it possible to center two boxes once formed relative to each other, as part of a superposition of one on the other.
  • the flaps 11 comprise, for example, recesses 16, for example square
  • the flaps 12 opposite the second set comprise lateral tabs 18, of a shape complementary to the recesses 16, which when folded and glued to the flap corner opposite (as shown on the second part of the figure 1 19) will allow to fit into the recesses 16 of the flaps 11 during the superposition of a box on the other.
  • the second set of flaps is intended to form the top of the box.
  • the figure 2 shows a device 20 according to one embodiment of the invention, for the embodiment of a corrugated cardboard box from a stack 21 of blanks 22 of the type of that described with reference to FIG. figure 1 .
  • the stack 21 is vertical at a constant level 23.
  • the bottom pusher plate 36 is shown to be able to be deployed vertically in order to press the lower pane onto the underside of the mandrel.
  • Other cylinders pushers 37 are provided so as to reach those skilled in the art to complete the coating.
  • the stack 22 of cuts, vertical comprises means 38 of pre-unstacking, said unstacking means 39 provided with a system formed by a partly horizontal arm 40 having for example branches 41 parallel to each other, supplying compressed air and suction cup position 42, namely six suction cups (two per branch).
  • the figure 4 illustrates the case where the cut-out 43 is brought from above so that the main adjacent flap 44 is placed accurately on the upper face 45 of the mandrel 46.
  • the last intermediate flap 52 is placed so that the fold line 4 between one side of the fastening tab 50, and the other side the last intermediate flap 52, is screwed to screw edges 53, which will thus always be positioned at the same location relative to the frame 54, that the mandrel is a large mandrel 55 or a small mandrel 56.
  • cutouts 43 or 58 are positioned at a different location relative to the frame.
  • the reference edge 61 will always remain at the same location relative to the XYZ mark, linked to the frame.
  • the fastening tongues can thus be pushed back by pushing means 65 (for example controlled by an automaton and / or comprising motor brains in a manner known per se) always located in the same place without any need to adjust them and / or move them.
  • pushing means 65 for example controlled by an automaton and / or comprising motor brains in a manner known per se
  • the invention is only possible thanks to a great precision in the handling of the cuts deposited on the mandrel and / or under the mandrel.
  • the advancing means comprise a lifting plate 67 (two angles) horizontal support of the last cut of the bottom of the stack 21 of blanks 22 and a jack 68 pusher vertically controlled by an automaton 69 allowing a rise of the programmed tray as and when the removal of cuts, for example all four cuts.
  • This command is controlled by optical measuring means 70.
  • optical means are associated in a manner known per se to means 71 for measuring telemetry (p i ) of the cutout 72 of the top and means 73 for calculating (microprocessors) the trajectory of the unstacking means 39 according to of said position (p i ), arranged to control the displacement of the unstacking means between an input position (plane 74) of the blank, and a position of positioning on a specific workstation, here in this case on the mandrel , and to calculate during the movement time (in masked time) the trajectory for the next position (p i + 1 ) of cutting and so on.
  • the pre-unstacking means 75 comprise a horizontal robotic arm 76 provided with at least four suckers 77 for pre-empting the cut 72, the arm being fastened to a vertical rod 78 which is eccentric relative to the stack, arranged next to the latter .
  • the rod 78 is guided and fixed by a sleeve 79 to an actuating chain 80 between a position 81 in dashed line on the figure 6 , and a dashed position 82 on the figure 7 , grasping and escaping the cutout above the jogging means 83, a position 84 ( figure 8 ) depositing the cutout on said jogging means 83, for gripping in the plane 74 and a position 85 ( figure 9 ) Escape height and side allowing the unstacking means 39 to take the cut 72.
  • the jogging means 83 comprise on either side of the volume occupied by the cell 22, chutes 86 for example formed by two tubes having a cross-sectional shape. of C whose opening of the branches is located on the side of the pile.
  • chutes are mounted movable in translation and parallel to the branches of C, respectively, at least two sliding lugs 87 formed by metal tongues provided in the upper part 88, a lug 89 abutment of the periphery 90 of the blank 72, to precisely frame it, and maintain it on said stops in the stop position once they moved from their exhaust position.
  • the tabs 87 are for example activated by a system of small cylinders with return spring (not shown) to return to the nominal exhaust position at rest.
  • the stack 22 of blanks empties and the plate formed by the angles 67, which supports the last blank 91, rises. There comes a time when it is in such a position that can automatically trigger the holding means 92 in the upper part of the stack.
  • These means are for example constituted by tabs 93 free in rotation, pivoting between a position 94 (cf. figure 6 to 9 ) and a position 95 (cf. figure 10 ) support the bottom of the pile under the effect of gravity.
  • the holding means 92 comprise the cleats 93 formed by a free piece that is rotatable relative to an axis 96. secured to a rod 97 of height adjustment fixed to the chassis 98 of the device.
  • the tabs have an end lug 99 arranged to slide along the edge 100 of the stack, the lug 99 having for example a substantially triangular section forming a contact tip with the edge of the stack.
  • a complete stack is thus reconstituted without breaking the load in order to produce boxes according to the invention.
  • rasping air blowing nozzles (not shown) inclined relative to the surface of the cut and blowing air on the top of the cut for example at a pressure between 1 and 2 bar relative.
  • the top cutout 24 is brought to a predetermined height ( figure 2 ), then the said cut is tapped to fit it and keep it separated from the remainder of the stack by the pre-unstacking means as indicated above, and after erasing the pre-unstacking means, it is entered ( figure 2 ) cutting by suction using unstacking means and displacement of the cut and captured at the coating station around the mandrel.
  • the device comprises the arm 40, which makes it possible to bring a cutout of a single movement after tearing it off to its assembly station above the mandrel ( figure 11 ).
  • Cutout 24 or 43 (cf. figure 4 ) is then deposited very precisely on the mandrel and more particularly the flap 44 is deposited on the upper face 45 of the mandrel, the fold lines being placed above the edges of the mandrel thanks to the great precision obtained on the one hand from the fact the initial starting position of the cutout which is on a perfectly calibrated vertical stack, and secondly the possibility of making a perfect capture and a displacement to the nearest tenth of a millimeter in the OXYZ mark relative to the frame of the device.
  • the coating is carried out around the mandrel by coming to press through the pushing plate 36 the lower shutter 44 'facing the upper flap 44 and then comes to press the tongue 50 on the intermediate flap 52 around the two edges lower 53 of the mandrel.
  • these are always arranged at the same location relative to the frame, which makes (see figure 4 ) that when the mandrel decreases to become smaller (mandrel 56 for example figure 4 ) to fit different, smaller cuts, the reference edge 52-53 is always held in the same place, which greatly facilitates the operation of the device and in particular makes it possible to avoid moving the cylinders 65 and other pushing inserts.
  • the body 111 is ejected as shown on the drawing. figure 3 .
  • the controller detects the tilting of the cleats in a manner known in itself.
  • the cart goes down and moves into position to receive a new battery on hold.
  • the new battery is reassembled to fit the rest of the previous stack, thus avoiding any break in the rate of formation of the boxes.
  • the present invention is not limited to the embodiment more particularly described. On the contrary, it incorporates all the variants and that in particular the cuts are of different shapes.

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  • Mechanical Engineering (AREA)
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Claims (18)

  1. Verfahren zur Herstellung einer Schachtel aus einem Wellpappenblattmaterial ausgehend von einem Zuschnitt (1, 43, 58, 59, 60) mit einer mit einer rechteckigen Befestigungslasche (3, 49) endenden Folge (2) von Flügeln mit mindestens vier rechteckigen Hauptflügeln (5, 6), welche über erste parallel zueinander verlaufende Faltlinien (4) miteinander verbunden sind, und mit einem ersten Satz (8) von seitlichen Umklappteilen, die auf einer Seite angeordnet sind, mit den Hauptflügeln über zweite, senkrecht zu den ersten Faltlinien (4) verlaufende Faltlinien (9) verbunden sind und dazu bestimmt sind, den Boden der Schachtel mindestens teilweise zu bilden, wobei die Schachtel angeordnet ist, um automatisch durch Umlegen der Flügel und Umklappteile des ersten Satzes um einen Dorn (29; 46; 55, 56; 62, 63) geformt zu werden, der komplementär zum Inneren der Schachtel geformt ist, wobei der Endflügel der Flügelfolge und die Lasche einerseits sowie die angrenzenden Umklappteile andererseits durch Kleben zur Formung der Schachtel aneinander befestigt sind, Verfahren, bei dem der Zuschnitt vom Stapel entnommen wird und dabei flach bleibt, indem der obere Zuschnitt (24, 72) aus einem vertikalen Lagermagazin mit konstantem Niveau (23) von einem Stapel (21) von Zuschnitten (22) entnommen wird, der Zuschnitt nach Verkleben der Lasche (3) und der Umklappteile in eine bestimmte Lage gebracht wird und der Hauptflügel (5, 44), der dem Hauptflügel (6, 47) angrenzt, mit dem die Befestigungslasche (3, 49) unmittelbar oder mittelbar über einen Zwischenflügel verbunden ist, genau gegenüber einer unteren oder oberen Fläche (30, 45) des Dorns (29, 46, 62, 63) gebracht wird, so dass die unteren oder oberen Kanten (31, 32, 53) des Dorns (29) genau gegenüber den ersten Faltlinien (4) des gegenüberliegenden Zuschnitts sind, anschließend der angrenzende Flügel gegen den Dorn durch eine Bewegung von unten nach oben (33) oder von oben nach unten gedrückt wird und die Flügel (6, 7) automatisch um die Kanten des Dorns umgelegt werden, dadurch gekennzeichnet, dass die zuvor mit Klebstoff bestrichene Lasche (3) gegen den Seitenrand des angrenzenden Flügels (7) durch Andrücken der Lasche um einen Referenzrand (51, 61) des Dorns auf der der unteren oder oberen Fläche gegenüberliegenden Seite gedrückt wird und dass zur Bildung einer Schachtel mit anderen Abmessungen und/oder anderer Form als die zuvor erzielten die Größe des Dorns geändert wird, indem in einem festen Bezugssystem in Bezug auf das Magazin die Position des Referenzrands (51, 61) des Dorns (46, 62, 63), um den die Lasche gelegt wird, unverändert bleibt.
  2. Verfahren zur Herstellung einer Schachtel aus einem Blattmaterial nach Anspruch 1,
    dadurch gekennzeichnet,
    dass die Position (pi) des oberen Zuschnitts mit telemetrischen Mitteln (71) gemessen wird, der Weg der Entstapelungsmittel in Abhängigkeit von der Position (pi) berechnet wird (73) und der Verfahrweg der Entstapelungsmittel (39) zwischen einer Position des Erfassens (74) des Zuschnitts und der Abstellposition dadurch gesteuert wird, dass während der Verfahrzeit der Weg für die nachfolgende Position (pi+1) des Zuschnitts berechnet wird und so weiter.
  3. Verfahren nach einem der vorhergehenden Ansprüche
    dadurch gekennzeichnet,
    dass der obere Zuschnitt des Stapels auf eine bestimmte Höhe (konstantes Niveau) gebracht wird, der Zuschnitt vom restlichen Stapel mit Vorentstapelungsmitteln (38) getrennt wird,
    der Zuschnitt geschüttelt wird, um ausgerichtet und vom restlichen Stapel in Greifposition getrennt gehalten zu werden, die Vorentstapelungsmittel (38, 75) eingefahren werden,
    der Zuschnitt durch Ansaugen mit Hilfe von Entstapelungsmitteln (39) erfasst wird,
    der Zuschnitt mit Hilfe der Entstapelungsmittel (39) verfahren wird, um an die bestimmte Stelle gebracht zu werden, und der oben genannte Schritte-Zyklus mit dem nächsten oberen Zuschnitt wiederholt wird.
  4. Verfahren nach Anspruch 3,
    dadurch gekennzeichnet,
    dass bei durch den Referenzrand (51) definierter Referenzkante, wobei diese eine untere Kante des Dorns ist und die bestimmte Stelle die obere Ebene des Dorns ist, der Hauptflügel (5, 44), der dem Hauptflügel (6, 47) angrenzt, mit dem die Befestigungslasche (3, 49) unmittelbar oder mittelbar verbunden ist, auf die Oberseite (30, 45) des Dorns (29, 46) gelegt wird.
  5. Verfahren nach Anspruch 3,
    dadurch gekennzeichnet,
    dass bei durch den Referenzrand (61) definierter Referenzkante, wobei diese eine obere Kante des Dorns ist und die bestimmte Stelle durch eine Fläche gebildet ist, die genau gegenüber der Unterseite des Dorns liegt, der Hauptflügel, der dem Hauptflügel angrenzt, mit dem die Befestigungslasche unmittelbar oder mittelbar verbunden ist, auf die Unterseite des Dorns (62, 63) gedrückt wird.
  6. Verfahren nach einem der vorstehenden Ansprüche 3 bis 5,
    dadurch gekennzeichnet,
    dass der Zuschnitt mit Hilfe eines ersten Satzes von Krallen in eine Referenzhöhe X des Stapels geschüttelt wird und der obere Zuschnitt vom nächsten Zuschnitt mit einem zweiten Satz von Krallen in einer Höhe Y in einem Höhenabstand zwischen 1 und 20 mm der Referenz X getrennt wird.
  7. Verfahren nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    dass der Stapel oben gehalten wird, wenn der untere Zuschnitt des Stapels ein bestimmtes Niveau erreicht hat, und ein neuer Stapel automatisch unter den restlichen Teil des vorigen Stapels gestellt wird, um eine kontinuierliche Entstapelung sicherzustellen.
  8. Verfahren nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    dass es mehr als dreißig Zyklen pro Minute umfasst.
  9. Verfahren nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    dass das Abheben des oberen Zuschnitts vom restlichen Stapel durch Blasen von über den Zuschnitt streifender Luft unterstützt wird.
  10. Vorrichtung zur Herstellung einer Schachtel aus einem Wellpappenblattmaterial ausgehend von einem Zuschnitt (1, 48, 58, 59, 60) mit einer mit einer rechteckigen Befestigungslasche (3) endenden Folge (2) von Flügeln mit mindestens vier rechteckigen Hauptflügeln (5, 6), welche über erste parallel zueinander verlaufende Faltlinien (4) miteinander verbunden sind, und mit einem ersten Satz (8) von seitlichen Umklappteilen, die auf einer Seite angeordnet sind, mit den Hauptflügeln über zweite, senkrecht zu den ersten Faltlinien (4) verlaufende Faltlinien (9) verbunden sind und dazu bestimmt sind, den Boden der Schachtel mindestens teilweise zu bilden, wobei die Schachtel angeordnet ist, um automatisch durch Umlegen der Flügel und Umklappteile des ersten Satzes um einen Dorn (29) geformt zu werden, der komplementär zum Inneren der Schachtel geformt ist, wobei der Endflügel der Flügelfolge und die Lasche einerseits sowie die angrenzenden Umklappteile andererseits durch Kleben zur Formung der Schachtel aneinander befestigt sind, wobei die Vorrichtung Folgendes umfasst:
    ein Magazin für die vertikale flache Lagerung der Zuschnitte (22), Mittel (39) zum Entstapeln des oberen Zuschnitts (24, 72) vom Magazin durch Ansaugen (77),
    Mittel (28) zum Bestreichen mit Kleber,
    einen Roboterarm (76), um den Hauptflügel, der dem Hauptflügel angrenzt, mit dem die Befestigungslasche des erfassten Zuschnitts unmittelbar oder mittelbar verbunden ist, horizontal auf eine Referenzfläche zu legen,
    Mittel, um den Hauptflügel (5, 44), der dem Hauptflügel (6, 47) angrenzt, mit dem die Befestigungslasche (3, 49) unmittelbar oder mittelbar verbunden ist, an eine bestimmte Stelle genau gegenüber einer unteren oder oberen Fläche (30, 45) des Dorns (29, 46, 62, 63) zu bringen, so dass die unteren oder oberen Kanten (31, 32, 53) des Dorns genau gegenüber den ersten Faltlinien (4) des gegenüberliegenden Zuschnitts sind,
    Mittel (34, 36, 37) zum automatischen Legen um die Kanten des Dorns,
    dadurch gekennzeichnet,
    dass sie Mittel (35) aufweist, um die zuvor mit Klebstoff bestrichene Lasche gegen den Seitenrand des angrenzenden Flügels durch Andrücken der Lasche um einen Referenzrand des Dorns auf der der unteren oder oberen Fläche gegenüberliegenden Seite zu drücken, und
    dass wenn der Referenzrand (51), der die Referenzkante definiert, eine untere Kante des Dorns ist, und die bestimmte Stelle die obere Ebene des Dorns ist, die Mittel zum Zuführen an eine bestimmte Stelle einen Arm aufweisen, um den Hauptflügel (5, 44), der dem Hauptflügel (6, 47) angrenzt, mit dem die Befestigungslasche (3, 49) verbunden ist, auf die Oberseite (30, 45) des Dorns (29, 46) mit Saugern (77) zu legen,
    wenn der Referenzrand (61), der die Referenzkante definiert, eine obere Kante des Dorns ist, und die bestimmte Stelle durch eine Fläche gebildet ist, die genau gegenüber der Unterseite des Dorns liegt, die Mittel, um den Flügel, der dem Flügel angrenzt, mit dem die Befestigungslasche verbunden ist, auf die Unterseite des Dorns zuzuführen, ein Förderband mit seitlichen und längsseitigen Anschlägen für den Zuschnitt aufweisen.
  11. Vorrichtung nach Anspruch 10,
    dadurch gekennzeichnet,
    dass sie Mittel (71) für die telemetrische Messung der Position (pi) des oberen Zuschnitts und Mittel (69, 73) für die Berechnung des Weges der Entstapelungsmittel (39) in Abhängigkeit von der Position (pi), welche angeordnet sind, um den Verfahrweg der Entstapelungsmittel zwischen einer Position des Erfassens (74) des Zuschnitts und einer Position für die Positionierung an einer bestimmten Arbeitsstation zu steuern und um während der Verfahrzeit den Weg für die nachfolgende Position (pi+1) des Zuschnitts zu berechnen und so weiter.
  12. Vorrichtung nach einem der Ansprüche 10 und 11,
    dadurch gekennzeichnet,
    dass sie eine Hebebühne (67, 68) zum Heben des Stapels bis zu einer Greifebene für den oberen Zuschnitt, Vorentstapelungsmittel (38, 75), die angeordnet sind, um den oberen Zuschnitt vom restlichen Stapel zu trennen und Mittel (83) zum Schütteln des Zuschnitts, um ihn auszurichten und mit den Entstapelungsmitteln (39) nach Einfahren der Vorentstapelungsmittel vom restlichen Stapel in Greifposition getrennt zu halten, aufweist.
  13. Vorrichtung nach einem beliebigen der Ansprüche 10 bis 12,
    dadurch gekennzeichnet,
    dass sie Mittel (92) aufweist, um den Stapel oben zu halten, wenn der untere Zuschnitt des Stapels ein bestimmtes Niveau erreicht hat, und Mittel, um einen neuen Stapel automatisch unter den restlichen Teil des vorigen Stapels zu stellen, um eine kontinuierliche Entstapelung sicherzustellen.
  14. Vorrichtung nach Anspruch 13,
    dadurch gekennzeichnet,
    dass die Mittel (92) zum Halten oben freie Rastnasen (93) aufweisen, die zwischen einer Gleitposition entlang des Randes (100) des Zuschnittstapels und einer Position des Stützens des Stapelbodens unter der Wirkung der Schwerkraft schwenken.
  15. Vorrichtung nach einem der Ansprüche 12 bis 14, soweit abhängig von Anspruch 12,
    dadurch gekennzeichnet,
    dass die Schüttelmittel einen ersten Satz von Krallen in einer Referenzhöhe X des Stapels und einen zweiten Satz von Krallen in einer Höhe Y in einem Höhenabstand zwischen 1 und 20 mm von der Referenz X aufweisen, um den oberen Zuschnitt vom nächsten Zuschnitt zu trennen.
  16. Vorrichtung nach einem der Ansprüche 10 bis 15,
    dadurch gekennzeichnet,
    dass sie Hilfsmittel für das Abheben des oberen Zuschnitts vom restlichen Stapel durch Blasen von über den Zuschnitt streifender Luft aufweist.
  17. Vorrichtung nach Anspruch 16,
    dadurch gekennzeichnet,
    dass die geblasene Luft mit einem relativen Druck zwischen 1 und 2 bar über Düsen zugeführt wird, die in Bezug auf die Oberfläche des oberen Zuschnitts geneigt sind.
  18. Vorrichtung nach einem der Ansprüche 13 bis 17, soweit abhängig von Anspruch 15,
    dadurch gekennzeichnet,
    dass bei Zuschnittsmagazin mit einer Palette die Hebebühne (67, 68) angeordnet ist, um die Palette und die von ihr getragenen Zuschnitte bis zu einer Beobachtungs- und Greifebene vertikal zu verfahren, und dass sie optische Detektionsmittel aufweist.
EP13706617.1A 2012-02-03 2013-02-01 Verfahren und vorrichtung zur herstellung eines wellpappkartons um einen dorn mit referenzkante Active EP2809507B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SI201331153T SI2809507T1 (sl) 2012-02-03 2013-02-01 Postopek in naprava za oblikovanje škatle iz valovite lepenke okoli trna z referenčnim robom
HRP20181455TT HRP20181455T1 (hr) 2012-02-03 2013-02-01 Postupak i uređaj za izradu kutije od valovitog kartona oko svornjaka za oblikovanje s referentnim rubom
RS20181055A RS57761B1 (sr) 2012-02-03 2013-02-01 Postupak i uređaj za formiranje kutije od talasastog kartona oko umetka sa referentnom ivicom
PL13706617T PL2809507T3 (pl) 2012-02-03 2013-02-01 Sposób i urządzenie do tworzenia pudełka z tektury falistej wokół trzpienia z krawędzią referencyjną

Applications Claiming Priority (2)

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FR1200338A FR2986511B1 (fr) 2012-02-03 2012-02-03 Procede et dispositif de formation d'une boite en carton ondule autour d'un mandrin avec arete de reference
PCT/FR2013/050220 WO2013114057A2 (fr) 2012-02-03 2013-02-01 Procede et dispositif de formation d'une boite en carton ondule autour d'un mandrin avec arete de reference.

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PT2809507T (pt) 2018-10-18
EP2809507A2 (de) 2014-12-10
FR2986511B1 (fr) 2016-04-29
SI2809507T1 (sl) 2019-01-31
WO2013114057A2 (fr) 2013-08-08
FR2986511A1 (fr) 2013-08-09
HRP20181455T1 (hr) 2018-11-02
ES2687019T3 (es) 2018-10-23
PL2809507T3 (pl) 2019-04-30
WO2013114057A3 (fr) 2013-10-10
HUE039493T2 (hu) 2019-01-28
RS57761B1 (sr) 2018-12-31

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