EP3738758B1 - Dispositif de pliage - Google Patents

Dispositif de pliage Download PDF

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Publication number
EP3738758B1
EP3738758B1 EP20170709.8A EP20170709A EP3738758B1 EP 3738758 B1 EP3738758 B1 EP 3738758B1 EP 20170709 A EP20170709 A EP 20170709A EP 3738758 B1 EP3738758 B1 EP 3738758B1
Authority
EP
European Patent Office
Prior art keywords
folding
frame
cardboard box
folding device
angle
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
EP20170709.8A
Other languages
German (de)
English (en)
Other versions
EP3738758B8 (fr
EP3738758A1 (fr
Inventor
Ilyas Benjamin Zorla
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.)
Zorla Ilyas Benjamin
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Individual
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Filing date
Publication date
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Publication of EP3738758A1 publication Critical patent/EP3738758A1/fr
Publication of EP3738758B1 publication Critical patent/EP3738758B1/fr
Application granted granted Critical
Publication of EP3738758B8 publication Critical patent/EP3738758B8/fr
Active legal-status Critical Current
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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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
    • B31B50/064—Feeding sheets or blanks from stacks from the underside of a magazine by being moved in the plane they are lying in
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
    • 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
    • B31B50/76—Opening and distending flattened articles
    • B31B50/78—Mechanically
    • B31B50/784—Mechanically for setting up boxes having their opening facing upwardly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/08—Forming three-dimensional containers from sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/145—Feeding carton blanks from piles or magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/34—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure
    • B65B43/345—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure applied to boxes, cartons or carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • 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
    • B31B2100/0024—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 having all side walls attached to the bottom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
    • B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/10—Construction of rigid or semi-rigid containers provided with covers, e.g. lids
    • B31B2120/102—Construction of rigid or semi-rigid containers provided with covers, e.g. lids with a hinged cover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/004—Closing boxes
    • B31B50/0044—Closing boxes the boxes having their opening facing upwardly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks

Definitions

  • the invention relates to a folding device for cardboard boxes in unwinding, preferably for pizza boxes.
  • Such pizza boxes are usually delivered to pizzerias in accordance with DE 199 01 237 A1 delivered to be folded by hand on site. Accordingly, depending on the number of pizzas delivered in daily business, folded boxes with a not insignificant amount of space must be kept in the pizzeria, which are then also opened by hand in order to insert the pizza and then deliver it.
  • a device for conveying such a pre-folded packaging blank is already known, with the help of which such flat pizza boxes delivered in the processing phase can be folded.
  • the pre-folded pizza boxes are, on the one hand, loaded with the pizza, which is placed on a base section of the pizza box, and then, during the run through the packaging machine, the pizza boxes are folded around the pizza placed on the base element, with the pizza being added to this are conveyed horizontally through the packaging machine and its individual stations by means of a round belt conveyor.
  • Such packaging machines are used in production to pack pizzas that are usually frozen.
  • the packaging machine cannot usually be used in day-to-day business in a conventional pizzeria.
  • the space required for the hand-folded pizza boxes in such a pizzeria is also quite considerable.
  • the invention is based on the object of creating a folding device, in particular for pizzas, which, on the one hand, requires significantly less space and, on the other hand, significantly reduces or makes the storage requirement for pizza boxes kept in reserve. Furthermore, the solution according to the invention eliminates the need to fold and then store pizza boxes for later use.
  • the invention comprises a folding device which has an angle frame, comprising at least two angle elements arranged at a distance from one another which corresponds at least to the width of the cardboard box to be fed, each of which has an adjustable foot, on which, preferably at right angles , each with a vertical strut articulated, are constructed, with these vertical struts spaced apart from each other, at a distance that corresponds at least to the width of the cardboard to be fed, away from the adjustable feet of the folding device, on the side surface facing the vertical struts, open magazine frame is arranged , wherein this magazine frame, at least through the vertical struts, the mounting surface, the belt drive and at least one of the two vertical struts formed hollow tube, which is preferably arranged on the top side of the mounting surface, and into which an, at least essentially L-shaped plug-in tube is inserted in such a way, that this hollow tube and the inserted plug-in tube at least partially surround the vertical cardboard boxes, this magazine frame preferably being equipped with side
  • the device according to the invention has the advantage that it is simultaneously suitable for storing at least a portion of the cardboard boxes required in day-to-day business within the magazine frame explained.
  • the frame element consists of a hollow tube lying on one side of the stack of cardboard boxes, which is attached to the vertical struts of the folding device, into which an angled plug-in tube is inserted, which at least partially surrounds the cardboard boxes on the side facing away from the angle element.
  • the plug-in tube inserted into the hollow tube is additionally connected to this hollow tube by means of an internal spring element, the spring force of which presses the plug-in tube in the direction of the angle element and thus against the belt drive with the cardboard boxes in between. This ensures that when the belt drive is switched on, the front cardboard box can be moved downwards while overcoming the frictional forces within the folding device.
  • the plug-in tube is at least partially encased by a buffer element in the pressing area on the rearmost cardboard box facing away from the angle element, so that damage or deformation of the cardboard boxes held in the magazine frame is avoided.
  • the footprint of the magazine frame is beveled downwards in the direction of the belt drive, so that the gradient introduced thereby supports the propulsion of the cardboard boxes held in the magazine frame in the direction of the belt drive.
  • Both the electric motor-driven belt drive, the folding frame and the folding tools mentioned are each put into operation or deactivated and controlled by means of a control element attached to the underside of the folding device's support surface.
  • an electric motor-driven lever element is also arranged on the two-sided adjustable feet of the folding device, which can be used as a lid closer at a later point in the process of folding the cardboard boxes.
  • this cardboard box which is arranged vertically on the mentioned installation surface, is received in the folding frame.
  • the lateral folding tools arranged on both sides of the folding frame are then pivoted by 90 ° in such a way that they then rest on the bottom surface of this cardboard box facing away from the vertical struts of the folding device, the lateral folding tools then being pivoted further in the direction of the vertical struts so that the side flaps of the cardboard that protrude on both sides beyond the outer frame of the folding frame are pivoted, preferably along a crease line embossed in the cardboard, at an angle of at least approximately 90°, i.e. are erected in relation to the bottom surface of the cardboard.
  • the lower folding tools are now also pivoted by 90° and thereby preferably along an embossed fold line running parallel to the erecting edge of these cardboard boxes, a lower cardboard flap arranged away from the underside in the erecting edge is folded again preferably at an angle of 90° and then by means of a further rotation of the lower folding tool along one of the The folding line on the underside, which is less distant and preferably also embossed and runs parallel to the mounting edge, is folded again at an angle of 90 ° to form a double wall.
  • the pizza box is unfolded from the unwinding into its later spatial shape.
  • the now pre-folded cardboard box is moved from its previous vertical position into a horizontal position using the pivotably articulated folding frame.
  • the lid closers which are pivotally articulated on both sides of the box on the adjusting feet and which are in engagement with the section of the cardboard box provided as a lid element of the box, are pivoted from a horizontal position by 90 ° into a vertical position and thereby move the lid element in such a way that the Box is opened.
  • the lid closers arranged on both sides of the box are each equipped with an angle element at the end in such a way that, at the same time as the lid closer is pivoted, the side and front flaps of the cardboard boxes are also pivoted by 90°, preferably along pre-embossed crease lines, i.e. they are erected relative to the bottom element of the box.
  • the finished folded box with the lid open is then located within the folding frame arranged between the adjustable feet.
  • the lid closers arranged on both sides of the box then carry out a further rotational movement, preferably by 90°, in a direction facing away from the vertical struts of the angle element, so that the box is closed as intended.
  • the filled box can now be removed from the folding device, whereupon the lid closers are then moved back into the folding device by a total of 180° Starting position can be pivoted before another box is moved into the folding frame by means of the belt drive and the folding process described above is carried out again.
  • the invention further comprises a folding device which has an angle frame, comprising at least two angle elements arranged at a distance from one another which corresponds at least to the width of the cardboard box to be supplied, each of which has an adjustable foot, on which, preferably on the right Angles, in each case a vertical strut is articulated, are constructed, with these vertical struts from each other at a distance that corresponds at least to the width of the cardboard box to be fed, each away from the base of the folding device, a magazine frame that is open on the side surface facing the vertical struts, which is at least through the Vertical struts, the installation surface, the belt drive and a hollow tube formed on at least one of the two vertical struts, which is preferably arranged on the top side of the installation surface, and into which an at least essentially L-shaped plug-in tube is inserted in such a way that this hollow tube and the inserted plug-in tube, which at least partially surrounds the vertical cardboard boxes, is constructed, wherein a belt drive
  • This arrangement also has the advantage over the prior art that the cardboard boxes intended for erection are transported by the folding device in the vertical direction and the space requirement is therefore significantly reduced compared to the prior art explained above. Furthermore, the device according to the invention has the advantage that it at the same time is suitable for storing at least a portion of the cardboard boxes required for day-to-day business within the explained magazine frame.
  • both the electric motor-driven belt drive, the folding frame and the folding tools mentioned are each put into operation or deactivated and controlled by means of a control element attached to the underside of the installation surface of the folding device.
  • this cardboard box which is arranged vertically on the mentioned installation surface, is received in the folding frame.
  • the cardboard box picked up in this way is pressed into this folding frame using the lower folding tool, whereby the side tabs are pivoted through an angle of 90° and the lower tab is pivoted through an angle of 180° using the lower folding tool, with the lower folding tool then being folded into its position
  • the starting position is returned and the first folding frame is brought into the horizontal position, after which the cardboard box is pressed into the second folding frame by the lower folding tool and the cardboard box can now be filled with a pizza or another dish in this position.
  • the second folding frame is then pivoted by means of the control element in a further step through an angle of 90 ° onto the first folding frame, whereby the cardboard box is closed, the second folding frame being returned to its starting position after pivoting again from an angle of 90 ° and the cardboard packaging can be removed.
  • the frame element consists of a hollow tube on one side of the stack of cardboard boxes, which is attached to the vertical struts of the folding device, into which an angled plug-in tube is inserted is used, which at least partially surrounds the cardboard boxes on the side facing away from the angle element.
  • the plug-in tube inserted into the hollow tube is additionally connected to this hollow tube by means of an internal spring element, the spring force of which presses the plug-in tube in the direction of the angle element and thus against the belt drive with the cardboard boxes in between. This ensures that when the belt drive is switched on, the front cardboard box can be moved downwards while overcoming the frictional forces within the folding device.
  • the plug-in tube is at least partially encased by a buffer element in the pressing area on the rearmost cardboard box facing away from the angle element, so that damage or deformation of the cardboard boxes held in the magazine frame is avoided.
  • the footprint of the magazine frame is beveled downwards in the direction of the belt drive, so that the gradient introduced thereby supports the propulsion of the cardboard boxes held in the magazine frame in the direction of the belt drive.
  • Figure 1 a shows a perspective front view of a folding device 1, comprising an angle frame 3, which is formed from two vertical struts 6, 6 ', which are arranged at a distance from one another which corresponds at least to the width of the cardboard box 2 to be fed, which are arranged in one piece on the underside. on the vertical struts 6, 6 'shaped, adjustable feet 5, 5' stand.
  • a magazine frame 8 is suspended between the vertical struts 6, 6 ', which is closed off on the underside by a support surface 10.
  • a stack of cardboard boxes 2 can be set up on this installation surface 10, these cardboard packages 2 being at least partially formed by a hollow tube 15 formed on one of the two vertical struts 6, which is arranged on the top side of the installation surface 10, and into which, at least essentially L-shaped plug-in tube 16 is inserted in such a way that this hollow tube 15 and the inserted plug-in tube 16 partially surround the stack of cardboard boxes 2.
  • the plug-in tube 16 is connected to a spring element arranged within the hollow tube 15 in such a way that the plug-in tube 16 is pressed in the direction of the cardboard boxes 2.
  • the plug-in tube is at least partially surrounded by a damping buffer element 20.
  • a control element 23 for operating the folding device 1 is attached below the installation surface 10.
  • a belt drive 11 is attached to the angle frame 3, onto which the cardboard boxes 2 are pressed by means of the plug-in tube 16, so that in the event that the belt drive 11 is set in motion by means of the control element 23, the respective Belt drive 11 closest cardboard box 2 is conveyed downwards within the angle frame 3 until the lower edge of this cardboard box 2 rests on a lower stop surface of a folding frame 12 which is pivotably suspended within the angle frame 3.
  • lateral folding tools 22, 22' are pivotally attached to the two vertical struts 6, 6 '.
  • the side folding tools 22, 22' are gripped under on the underside by a lower folding tool 21 which can also be pivoted. Again below the lower folding tool 21, two lid closers 27, 27' are pivotally connected to the two adjustable feet 5, 5 'on both sides.
  • Fig. 1 d shows the folding device 1 explained above in a rear view.
  • Fig. 2 a again shows the folding device in a perspective front view after the cardboard boxes 2, which have been moved downwards on both sides, have each been pivoted towards you by an angle of 90 ° using the laterally arranged side folding tools 22, 22 '.
  • the direction of movement is reversed so that the unwinding of the cardboard boxes 2 are pressed into the folding frame 12 suspended horizontally between the vertical bars, so that the side tabs initially protruding over the folding frame 12 on both sides are positioned at an angle of 90 ° relative to the cardboard surface.
  • the lower folding tool 21 is first pivoted through an angle of 90° and folds over the lower cardboard flap, is then pivoted again through a further 90° and pivots the cardboard flap again, so that there is a double wall in this area trains.
  • FIG. 2 c shows the folding device 1 in this state in a side view, as well Fig. 2d) in a perspective rear view.
  • the folding frame 12 is then pivoted from its previous vertical position into a horizontal position by means of a pivoting device, not shown here, and is moved forward between the two adjustable feet 5, 5 'by means of a linear guide, also not shown, whereby the front edge of the closed lid of the now formed boxes come into engagement with the lid closers 27, 27' in such a way that they come into engagement with the front corners of the box lid with angle elements 31, 31' each formed on the ends of the lid closers 27, 27'.
  • These lid closers 27, 27' are then pivoted from the previous horizontal position into a vertical position and take the lid of the box with them, which is thereby opened.
  • the angle elements 31, 31' caused the side and front flaps of the lid to be pivoted by 90°.
  • the box is then located as shown in Fig. 1 a) , intended to be in the open position in the folding device 1 and can be filled.
  • the Figures 3 b) - d) each show the folding device 1 in this state in a perspective rear view, in a side view and in the front view.
  • the folding frame 12 is then moved back into its vertical position in a manner not shown here by means of the mentioned linear guide and the pivoting mechanism, before the cardboard box is then unrolled again by means of the belt drive 11 after this process has been triggered via the control element 23 the magazine frame 8 is moved downwards in such a way that the cardboard box 2 is analogous to the illustration in Fig. 1 in contact with the folding frame 12.
  • a first folding device 1 is described above, which makes it possible to bring a stack of cardboard boxes 2, primarily pizza boxes, into their spatial shape from a stack of cardboard boxes 2, which are set in a magazine frame 8, to load them and then remove them closed.
  • Figure 5 shows a perspective front view of a second folding device 1, comprising an angle frame 3, which is formed from two vertical struts 6, 6 ', which are arranged at a distance from one another which corresponds at least to the width of the cardboard box 2 to be fed, which are integrally formed on the underside on the vertical struts 6, 6 ', molded adjustable feet 5, 5' stand.
  • a magazine frame 8 is suspended between the vertical struts 6, 6 ', which is closed off on the underside by a support surface 10.
  • a stack of cardboard boxes 2 can be placed on this installation surface 10 in order to be unrolled, with these cardboard boxes 2 at least partly from a hollow tube 15 formed on one of the two vertical struts 6, which is arranged on the top side of the support surface 10, and into which an at least essentially L-shaped plug-in tube 16 is inserted in such a way that this hollow tube 16 and the inserted plug-in tube 16 form the stack of cardboard boxes 2 partially encompass.
  • the plug-in tube 16 is connected to a spring element arranged within the hollow tube 15 in such a way that the plug-in tube 16 is pressed in the direction of the cardboard boxes 2.
  • the plug-in tube is at least partially surrounded by a damping buffer element 20.
  • a belt drive 11 is attached to the angle frame 3, onto which the cardboard boxes 2 are pressed by means of the plug-in tube 16, so that in the event that the belt drive 11 is set in motion by means of the control element 23, the respective Belt drive 11 nearest cardboard box 2 is conveyed downwards within the angle frame 3 until the lower edge of this cardboard box 2 rests on a lower surface of the first of two folding frames 12, which are pivotally suspended within the angle frame 3.
  • Fig. 6 shows a perspective front view of the second folding device 1, in which the cardboard box 2 was pressed into the first folding frame 12 using the lower folding tool 21 and the lower flap of the cardboard box 2 was also folded by 180° using the lower folding tool 21.
  • Figure 7 shows a perspective front view of the second folding device 1 after the cardboard box 2 has been moved down to the horizontal position by means of the first folding frame 12 and the lower folding tool 21 has been returned to its starting position.
  • Figure 8 shows a perspective front view of the second folding device 1, in which the cardboard 2 was pressed into the second folding frame 12 'with the lower folding tool 21.
  • Figure 9 shows a perspective front view of the second folding device 1, after filling the box, preferably with a pizza, in which the second folding frame 12 'was pivoted through an angle of 90 ° so that it rests on the first folding frame, with the lower one beforehand Folding tool 21 was returned to its starting position.
  • Figure 10 shows a perspective front view of the second folding device 1, in which the second folding frame 12 'was pivoted back into its starting position through an angle of 90 °, whereby the folding process is completed and the folded cardboard box 2 can be removed.
  • a second folding device 1 is described above, which makes it possible to bring a stack of cardboard boxes 2, primarily pizza boxes, into their spatial shape from a stack of cardboard boxes 2, which are set in a magazine frame 8, to load them and then remove them closed.

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

Claims (18)

  1. Dispositif de pliage (1) pour des cartons (2) entièrement dépliés en déroulement, de préférence des cartons à pizza pouvant être reçus verticalement dans un cadre de magasin (8) à l'état déroulé aux fins de leur pliage, caractérisé en ce que le dispositif de pliage (1) présente un cadre angulaire (3), comprenant au moins deux éléments angulaires (4, 4') disposés à une distance l'un de l'autre qui correspond au moins à la largeur du carton (2) à acheminer, lesquels éléments angulaires présentent respectivement un pied de réglage (5, 5'), les pieds de réglage (5, 5') se dressant sur un plan de pose du dispositif de pliage (1), au niveau desquels éléments angulaires (4, 4') respectivement une entretoise verticale (6, 6') est articulée, de préférence à angle droit, le cadre de magasin (8), lequel est ouvert sur la surface latérale (7) orientée vers les entretoises verticales (6, 6'), étant disposé au niveau desdites entretoises verticales (6, 6') à une distance à l'écart du plan de pose du dispositif de pliage (1) qui correspond au moins à la largeur du carton (2) à acheminer, le cadre de magasin (8) étant défini au moins par les entretoises verticales (6, 6'), une surface de pose (10) refermant le cadre de magasin (8) côté inférieur, un entraînement à bande (11) ainsi qu'au moins un tube creux (15) formé au niveau de l'une des deux entretoises verticales (6, 6'), lequel tube creux est disposé de préférence côté supérieur de la surface de pose (10), un tube enfichable (16) au moins sensiblement en forme de L étant enfiché dans le tube creux (15) formé, de telle sorte que ledit tube creux (15) et le tube enfichable (16) enfiché peuvent entourer au moins partiellement les cartons (2) placés verticalement, et l'entraînement à bande (11, de préférence entraîné par un moteur électrique, étant associé à la surface de pose (10) de telle sorte qu'un carton (2) se trouvant le plus en avant et respectivement reçu verticalement dans le cadre de magasin (8) peut être acheminé dans un cadre de pliage (12) disposé en dessous de la surface de pose (10) et également fixé aux entretoises verticales (6, 6') à l'aide de l'entraînement à bande (11), de préférence entraîné par un moteur électrique, et/ou à l'aide d'une propulsion de l'entraînement à bande (11) commandée par un capteur, le cadre de pliage (12) présentant au moins un outil de pliage inférieur (21) ainsi que deux outils de pliage latéraux (22, 22') disposés à droite et à gauche, et que le bord inférieur dudit carton (2) pouvant être acheminé peut se dresser sur une surface du cadre de pliage (12) faisant saillie en direction du carton (2) et peut en outre être plié dans une forme spatiale prédéfinie à l'aide du cadre de pliage (12) et des outils de pliage (21, 22, 22') associés.
  2. Dispositif de pliage (1) selon la revendication 1, caractérisé en ce que le tube enfichable (16) est relié au tube creux (15) par l'intermédiaire d'un élément à ressort de telle sorte que le tube enfichable (16) peut être pressé contre les cartons (2) reçus dans ledit cadre de magasin (8) sur le côté du cadre de magasin (8) opposé à l'entraînement à bande (11).
  3. Dispositif de pliage (1) selon une ou plusieurs revendications précédentes, caractérisé en ce que le tube enfichable (16) est enveloppé, au moins dans la zone de pression des cartons (2), au moins dans certaines régions, par un élément tampon (20) produit de préférence à partir de matière plastique ou de mousse.
  4. Dispositif de pliage (1) selon une ou plusieurs des revendications 1 à 3 précédentes, caractérisé en ce que la surface de pose (10) du cadre de magasin (8) est fixée aux éléments angulaires (4, 4') soit de manière oblique, soit de manière à pouvoir être basculée, de telle sorte que la surface de pose (10) est inclinée vers le bas en direction des éléments angulaires (4, 4').
  5. Dispositif de pliage (1) selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'un élément de manipulation (23) est disposé sur le côté inférieur de la surface de pose (10) du dispositif de pliage (1), en ce qu'en particulier est en liaison active avec l'entraînement à bande (11) entraîné par un moteur électrique, le cadre de pliage (12) et les outils de pliage (21, 22, 22').
  6. Dispositif de pliage (1) selon une ou plusieurs des revendications précédentes, caractérisé en ce que respectivement un élément de levier entraîné par un moteur électrique est disposé au niveau des pieds de réglage (5, 5') des deux côtés du dispositif de pliage (1) comme moyen de fermeture de couvercle (27, 27').
  7. Dispositif de pliage (1) selon les revendications 1, 5 et 6,
    caractérisé en ce que le carton (2) peut être pivoté d'un angle de 90° à l'aide des outils de pliage latéraux (22, 22') disposés au niveau des entretoises verticales (6, 6') de manière à pouvoir pivoter des deux côtés du cadre de pliage (12), de telle sorte que lesdits outils de pliage latéraux reposent sur la surface de fond (25) du carton (2) opposée aux entretoises verticales (6, 6'), et en outre lesdits outils de pliage latéraux (22, 22') sont désormais mobiles respectivement en direction des entretoises verticales (6, 6') de telle sorte que les languettes latérales du carton (2) disposées des deux côtés de la surface de fond du carton (2) peuvent être redressées, de préférence le long de lignes de pliage estampées dans le carton (2), selon un angle d'au moins environ 90° par rapport à la surface de fond.
  8. Dispositif de pliage (1) selon la revendication 7, caractérisé en ce que, dans une autre étape, l'outil de pliage inférieur (21) peut être pivoté à nouveau d'un angle de 90° et, de ce fait, une languette de carton inférieure du carton (2) peut être rabattue, de préférence le long d'une ligne de pliage préestampée, une autre rotation de l'outil de pliage inférieur (21) permettant ensuite de rabattre également, de préférence le long d'une ligne de pliage estampée s'étendant parallèlement à la surface de pose du carton (2), une languette de carton disposée moins loin pour former une double paroi dans ladite zone.
  9. Dispositif de pliage (1) selon la revendication 7 ou 8,
    caractérisé en ce que le carton (2) peut être déplacé de la position verticale vers une position horizontale à l'aide du cadre de pliage (12) articulé de manière à pouvoir pivoter, deux moyens de fermeture de couvercle (27, 27') articulés de manière à pouvoir pivoter au niveau des pieds de réglage (5, 5') et étant en prise avec l'élément de couvercle (30) ultérieur du carton (2) pouvant ensuite pivoter d'un angle de 90° à partir d'une position horizontale vers une position verticale en entraînant l'élément de couvercle (30), de telle sorte que le carton (2) est ouvert.
  10. Dispositif de pliage (1) selon la revendication 9, caractérisé en ce que les moyens de fermeture de couvercle (27, 27') disposés des deux côtés sont équipés au niveau de leur extrémité de respectivement un élément angulaire (31, 31') de telle sorte que les languettes latérales et frontales du carton (2) peuvent pivoter respectivement d'un angle de 90°, de préférence le long de la ligne de pliage préestampée, c'est-à-dire qu'elles peuvent être redressées par rapport à l'élément de fond du carton (2), simultanément avec le pivotement des moyens de fermeture de couvercle (27, 27') pour l'ouverture du carton (2).
  11. Dispositif de pliage (1) selon la revendication 10, caractérisé en ce que, de préférence après le remplissage du carton (2), à l'aide de l'élément de manipulation (23), un autre mouvement de pivotement des moyens de fermeture de couvercle (27, 27') disposés des deux côtés, de préférence d'un angle de 90°, peut être déclenché pour la fermeture du carton (2), de telle sorte que les languettes latérales et frontales du couvercle du carton (2) formées à l'aide du dispositif de pliage (1) peuvent être pivotées vers l'intérieur en appui et/ou dans une position intermédiaire par rapport aux languettes latérales et frontales du fond du carton (2).
  12. Dispositif de pliage (1) selon la revendication 11, caractérisé en ce que les moyens de fermeture de couvercle (27, 27) peuvent pivoter respectivement d'un angle de 180° pour revenir dans la position initiale.
  13. Dispositif de pliage (1) pour des cartons (2) entièrement dépliés en déroulement, de préférence des cartons à pizza pouvant être reçus verticalement dans un cadre de magasin (8) à l'état déroulé aux fins de leur pliage,
    caractérisé en ce que le dispositif de pliage (1) présente un cadre angulaire (3), comprenant au moins deux éléments angulaires (4, 4') disposés à une distance l'un de l'autre qui correspond au moins à la largeur du carton (2) à acheminer, lesquels éléments angulaires présentent respectivement un pied de réglage (5, 5'), les pieds de réglage (5, 5') se dressant sur un plan de pose du dispositif de pliage (1), au niveau desquels éléments angulaires (4, 4') respectivement une entretoise verticale (6, 6') est articulée, de préférence à angle droit, le cadre de magasin (8), lequel est ouvert sur la surface latérale (7) orientée vers les entretoises verticales (6, 6'), étant disposé au niveau desdites entretoises verticales (6, 6') à une distance à l'écart du plan de pose du dispositif de pliage (1) qui correspond au moins à la largeur du carton (2) à acheminer,
    le cadre de magasin (8) étant défini au moins par les entretoises verticales (6, 6'), une surface de pose (10) refermant le cadre de magasin (8) côté inférieur, un entraînement à bande (11) ainsi qu'au moins un tube creux (15) formé au niveau de l'une des deux entretoises verticales (6, 6'), le tube creux (15) formé étant disposé de préférence côté supérieur de la surface de pose (10), et qu'un tube enfichable (16) au moins sensiblement en forme de L est enfiché dans le tube creux (15) formé, de telle sorte que ledit tube creux (15) et le tube enfichable (16) enfiché peuvent entourer au moins partiellement les cartons (2) placés verticalement, l'entraînement à bande (11, de préférence entraîné par un moteur électrique, étant associé à la surface de pose (10), et des premier et second cadres de pliage (12, 12') étant disposés de manière à pouvoir pivoter à l'intérieur du cadre angulaire (3), le carton (2) se dressant sur une surface du premier cadre de pliage (12) faisant saillie en direction du carton (2) et/ou pouvant être déplacé dans ladite position à l'aide de l'entraînement à bande (11) et en outre, à l'aide des premier et second cadres de pliage (12, 12') et de l'outil de pliage inférieur (21), lequel est disposé en dessous de la surface de pose (10), le carton (2), comprenant des languettes latérales et une languette inférieure, pouvant être plié dans une forme spatiale prédéfinie par le fait que le carton (2) peut être pressé dans le premier cadre de pliage (12) à l'aide de l'outil de pliage inférieur (21), moyennant quoi les languettes latérales du carton (2) peuvent pivoter d'un angle de 90°, et également à l'aide de l'outil de pliage inférieur (21), la languette inférieure du carton (2) pouvant être pliée vers l'intérieur de 180° et ensuite le second cadre de pliage (12') pouvant à nouveau être pivoté en arrière d'un angle de 90°, et que le premier cadre de pliage (12) peut être amené à l'horizontale, le carton (2) pouvant ensuite être pressé dans le second cadre de pliage (12') par l'outil de pliage inférieur (21), le carton (2) pouvant être rempli et le carton (2) plié pouvant être retiré.
  14. Dispositif de pliage (1) selon la revendication 13, caractérisé en ce qu'un élément de manipulation (23) est disposé sur le côté inférieur de la surface de pose (10) du dispositif de pliage (1), en ce qu'en particulier est en liaison active avec l'entraînement à bande (11) entraîné par un moteur électrique, les cadres de pliage (12, 12') et l'outil de pliage inférieur (21).
  15. Dispositif de pliage (1) selon la revendication 14, caractérisé en ce que, de préférence après le remplissage, le second cadre de pliage (12') peut être pivoté d'un angle de 90° sur le premier cadre de pliage (12) à l'aide de l'élément de manipulation dans une autre étape, le second cadre de pliage (12') étant ramené dans sa position initiale après un nouveau pivotement d'un angle de 90°.
  16. Dispositif de pliage (1) selon les revendications 13 à 15,
    caractérisé en ce que le tube enfichable (16) est relié au tube creux (15) respectivement par l'intermédiaire d'un élément à ressort de telle sorte que le tube enfichable (16) est pressé contre les cartons (2) reçus dans ledit cadre de magasin (8) sur le côté du cadre de magasin (8) opposé à l'entraînement à bande (11).
  17. Dispositif de pliage (1) selon les revendications 13 à 16,
    caractérisé en ce que le tube enfichable (16) est enveloppé, au moins dans la zone de pression des cartons (2), au moins dans certaines régions, par un élément tampon (20) produit de préférence à partir de matière plastique ou de mousse.
  18. Dispositif de pliage (1) selon les revendications 13 à 17,
    caractérisé en ce que la surface de pose (10) du cadre de magasin (8) est fixée aux éléments angulaires (4, 4') soit de manière oblique, soit de manière à pouvoir être basculée, de telle sorte que la surface de pose (10) est inclinée vers le bas en direction des éléments angulaires (4, 4').
EP20170709.8A 2018-05-14 2020-04-21 Dispositif de pliage Active EP3738758B8 (fr)

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DE102018111489 2018-05-14
DE102019003376.0A DE102019003376A1 (de) 2018-05-14 2019-05-14 Faltvorrichtung

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CN113306788A (zh) * 2021-06-16 2021-08-27 珠海市枫杨科技有限公司 一种可自动撑开纸箱的折箱机构
CN114162390A (zh) * 2021-11-18 2022-03-11 九江市启田智能科技有限公司 一种吊挂包装设备

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DE19901238B4 (de) 1999-01-14 2005-12-08 Seidel, Helmut Vorrichtung zum Fördern eines vorgefalteten Verpackungszuschnittes in einer Verpackungsmaschine
DE19901237B4 (de) 1999-01-14 2006-07-06 Seidel, Helmut Verfahren zum Aufrichten einer Faltschachtel aus einem einteiligen Kartonzuschnitt
EP2367679A1 (fr) * 2008-10-31 2011-09-28 Australian Packaging Solutions Montage d'un plateau en carton
ITVI20130178A1 (it) * 2013-07-12 2015-01-13 Gulva S R L Metodo e sistema di movimentazione e formazione di contenitori, in particolare per uso alimentare, e relativo apparato

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EP3738758B8 (fr) 2023-11-01
PT3738758T (pt) 2023-11-20
ES2964914T3 (es) 2024-04-10
EP3738758A1 (fr) 2020-11-18

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