DE102019003376A1 - folding - Google Patents

Abstract

The invention relates to a folding device (1) for cardboard boxes (2) which can be inserted into a magazine frame (8) of the folding device (1) and subsequently by means of a belt drive (11) into a folding frame (12) arranged below the magazine frame (8) , 12 ') are movable, the plurality of folding tools (21, 22, 22'), as well as on both sides of the folding frame (12) arranged lid closers (27, 27 ') are assigned such that within the folding frame (8), the cardboard boxes ( 2) are foldable from an unwound state into their spatial form, then in the opened state in the folding frame (12, 12 ') are arranged for filling, wherein the carton after its filling by means of the lid closer (27, 27') closable as intended and then out the folding device (1) can be removed.

Description

The invention relates to a folding device for cardboard in settlement, preferably for pizza boxes.

Such pizza boxes are usually pizzerias in a settlement according to the DE 199 01 237 A1 delivered to be manually folded on site. Accordingly, depending on the number of pizzas delivered in the daytime business, appropriately folded cartons with a considerable space requirement in the pizzeria must be held, which are then also opened by hand to use the pizza and then deliver.

In this context is from the DE 199 01 238 A1 a device for conveying such a prefolded packaging blank previously known, with the help of such, delivered in the development, flat pizza boxes can be folded. The pre-folded pizza boxes are fitted in the course of a run through a packaging machine on the one hand with the pizza, which is placed on a bottom portion of the pizza box and then folded during the passage through the packaging machine of the pizza boxes to the patch on the bottom element pizza, the pizza this be conveyed in a horizontal direction by the packaging machine and its individual stations by means of a round belt conveyor. Such packaging machines are used in production to package usually frozen pizzas used. However, such a packaging machine is usually not used in a conventional pizzeria in the daily business due to the considerable footprint. On the other hand, the space required for the manually pre-folded pizza boxes in such a pizzeria is quite considerable.

Based on this prior art, the present invention seeks to provide a folding device, especially for pizzas, which on the one hand has a significantly lower footprint and on the other hand significantly reduces the need for storage held pizza boxes or makes superfluous. Moreover, in the solution according to the invention eliminates the need to fold pizza boxes for later use and then vorzuhalten.

The object of the invention is achieved by a folding device according to the current claim 1 and 13. Advantageous embodiments of the invention can be taken from the dependent claims 2-12 and 14-19.

According to the current claim 1, the invention comprises a folding device comprising an angle frame, comprising at least two, at a distance from one another, which corresponds at least to the width of the cardboard to be supplied, arranged angle elements, each having a leveling foot, at which, preferably at right angles , in each case a vertical strut is hinged, are constructed, wherein at these vertical struts from each other at a distance corresponding to at least the width of the cardboard to be supplied, respectively removed from the footing of the folding device, on the vertical struts facing side surface open magazine frame, which at least by the vertical struts , the Aufstellfläche, the tape drive and at least one of the two vertical struts integrally molded hollow tube, which is preferably arranged on the upper side of the footprint, and in which a, at least substantially L-shaped plug-in tube is inserted such that this hollow raw r and the inserted plug-in tube, the vertical cardboard at least partially engages, preferably equipped with side plates, constructed, wherein the footprint of a tape drive, preferably an electric motor driven tape drive, is assigned such that each recorded in the magazine frame perpendicular, foremost Kartonage, ie the voltage applied to the tape drive cardboard, arranged below the footing, also attached to the vertical struts folding frame, which has at least one lower folding tool and two right and left side arranged folding tools, by means of the preferably electric motor driven belt drive, and / or by means of a sensor-controlled propulsion of the belt drive, can be fed such that the lower edge of this cardboard stands up on a projecting in the direction of the cardboard surface of the folding frame, and further by means of the folding frame and the associated Folding tools in a predetermined spatial form is foldable.
This arrangement has over the prior art has the advantage that the cardboard provided for erection are conveyed by the folding device in the vertical direction and thus the space required compared to the above-described prior art is significantly reduced. Moreover, the device according to the invention has the advantage that it is at the same time suitable for providing at least a portion of the cardboard needed in the daily business within the described magazine frame.

In an advantageous embodiment, the frame member consists of a one-sided stack of cardboard boxes adjacent hollow tube, which is attached to the vertical struts of the folding device, in which an angled plug-in tube is used, which surrounds the cardboard on the side facing away from the angle element, at least partially. In this case, the inserted into the hollow tube plug-in tube with this hollow tube is additionally by means of a connected inside spring element whose spring force presses the plug-in tube in the direction of the angle element and thus to the tape drive with the interposition of the cardboard. This ensures that, when the tape drive is activated, the respectively foremost cardboard box can be moved downward while overcoming the frictional forces within the folding apparatus.

In a further advantageous embodiment of the frame member, the plug-in tube is at least partially sheathed by a buffer element in the contact area to the respective rearmost cardboard element facing away from the angle element, so that damage or deformation of the cardboard packaging accommodated in the magazine frame is avoided.

In another advantageous development, the footprint of the magazine frame in the direction of the belt drive is chamfered down, so that supported by the thus introduced gradient of the drive in the magazine frame, cardboard is supported in the direction of the belt drive.

Both the electric motor driven tape drive, the folding frame and the aforementioned folding tools are each put into operation by means of a fixed to the underside of the footprint of the folding device control element or put out of service and controlled.

In addition to the already mentioned, arranged below the footprint, folding frame and folding tools each an electric motor driven lever element is arranged on the two-sided adjustable feet of the folding device, which can be used as a lid closer at a later time of the expiration of the folding of the cardboard.

After the respectively adjacent to the tape drive frontmost cardboard was moved by means of the tape drive intended in the direction of the arranged below the footprint of the folding device folding frame, this is added to the aforementioned footprint vertically arranged cardboard in the folding frame. In a further step, the lateral folding tools arranged on both sides of the folding frame are each pivoted by 90 ° so that they rest against the bottom surface of this cardboard box facing away from the vertical struts of the folding apparatus, in which case the lateral folding tools continue to be pivoted in the direction of the vertical struts be, so that the two sides over the outer frame of the folding frame protruding side flaps of the cardboard, preferably along a stamped in the carton kink line at an angle of at least about 90 ° are pivoted, ie be erected in relation to the bottom surface of the cardboard.

In the following processing step, the lower folding tools are now pivoted by 90 ° and thereby preferably along a running parallel to the Aufstellkante this cardboard embossed crease line, arranged away from the bottom in Aufstellkante lower cardboard flap again preferably folded over at an angle of 90 ° and then by means of a further rotation of the lower folding tool along one of the lower side Aufstellkante less distant, preferably also embossed crease line which is parallel to the Aufstellkante, bent over again to form a double wall at an angle of 90 °. After this processing step, the pizza box from the settlement is unfolded into its later spatial form.

In a further processing step, the now prefolded cardboard is moved from its previous vertical position by means of the pivotally hinged folding frame in a horizontal position. Subsequently, the lid on both sides of the carton pivotally hinged lid closer, which are in engagement with the cover element of the carton provided portion of the cardboard, starting from a horizontal position by 90 ° pivoted to a vertical position and thereby moves the lid member such that the Carton is opened.

The lid closers arranged on both sides of the carton are equipped in each case with an angle element which simultaneously with the pivoting of the lid closer also pivots the side and front flaps of the cartons by 90 °, preferably along pre-marked fold lines, i. erected against the bottom element of the carton.

Subsequently, the finished folded cardboard box with the lid open is located within the folding frame arranged between the adjustable feet.
In this position, a pizza or other dish can now be inserted into the opened carton.

Subsequently, the lid closers arranged on both sides of the cardboard box carry out a further rotational movement by preferably 90 ° in a direction away from the vertical struts of the angle element, so that the cardboard is sealed as intended.

The filled carton can now be removed from the folding device, whereupon the lid closers can then in turn be pivoted in their entirety by 180 ° back into the starting position before Then by means of the tape drive another carton is moved into settlement in the folding frame and the folding process described above is carried out again.

According to the current claim 13, the invention further comprises a folding device comprising an angle frame, comprising at least two, at a distance from each other, which corresponds at least to the width of the cardboard to be supplied, arranged angle elements, each having a leveling foot, on which, preferably in the right Angle, in each case a vertical strut is hinged, are constructed, wherein at these vertical struts from each other at a distance corresponding to at least the width of the cardboard to be supplied, each removed from the footing of the folding device, on the vertical struts facing side surface open magazine frame, which at least through the Vertical struts, the footprint, the tape drive and at least one of the two vertical struts integrally molded hollow tube, which is preferably arranged on the upper side of the footprint, and in which a, at least substantially L-shaped plug-in tube is inserted such that the ses hollow tube and the inserted plug-in tube, which surrounds vertical cardboard at least partially, is constructed, wherein the footprint is a tape drive, preferably an electric motor driven tape drive, fed such that the lower edge of this cardboard on a protruding in the direction of the cardboard surface of the folding frame stands up and / or by means of a sensor-controlled propulsion of the tape drive in this position is movable and is foldable further by means of the folding frame and the lower folding tool in a predetermined spatial form.

This arrangement also has over the prior art has the advantage that the provided for erection cardboard boxes are transported by the folding device in the vertical direction and thus the space required compared to the above-described prior art is significantly reduced. Moreover, the device according to the invention has the advantage that it is at the same time suitable for providing at least a portion of the cardboard needed in the daily business within the described magazine frame.

In an advantageous embodiment according to claim 14, both the electric motor-driven belt drive, the folding frame and the aforementioned folding tools are each put into operation by means of a fixed to the underside of the footprint of the folding device operating element or put out of service and controlled.

After the respectively applied to the tape drive frontmost cardboard was intended by means of the tape drive in the direction of the arranged below the footprint of the folding folding frame was moved, this is recorded on the aforementioned footprint vertically arranged cardboard in the folding frame. The so-recorded cardboard is pressed by means of the lower folding tool in this folding frame, whereby the lateral tabs are pivoted by an angle of 90 ° and by means of the lower folding tool, the lower flap is pivoted through an angle of 180 °, then the lower folding tool in his Returned home position and the first folding frame is placed in the horizontal, after which the cardboard is pressed by the lower folding tool in the second folding frame and the cardboard can be filled in this position now with a pizza or other dish.

According to claim 16, the second folding frame is subsequently pivoted by means of the operating element in a further step by an angle of 90 ° to the first folding frame, whereby the cardboard is sealed, the second folding frame after repeated pivoting from an angle of 90 ° returned to its original position is and the cardboard is removable.

In an advantageous embodiment, the frame member consists of a one-sided stack of cardboard boxes adjacent hollow tube, which is attached to the vertical struts of the folding device, in which an angled plug-in tube is used, which surrounds the cardboard on the side facing away from the angle element, at least partially. In this case, the inserted into the hollow tube plug-in tube with this hollow tube is additionally connected by means of an internal spring element, the spring force presses the plug-in tube in the direction of the angle element and thus to the belt drive with the interposition of the cardboard. This ensures that, when the tape drive is activated, the respectively foremost cardboard box can be moved downward while overcoming the frictional forces within the folding apparatus.

In a further advantageous embodiment of the frame member, the plug-in tube is at least partially sheathed by a buffer element in the contact area to the respective rearmost cardboard element facing away from the angle element, so that damage or deformation of the cardboard packaging accommodated in the magazine frame is avoided.

In a further advantageous development, the footprint of the magazine frame in the direction of the belt drive is bevelled downwards, so that by the thus introduced gradient of the propulsion of the recorded in the magazine frame, Cardboard in the direction of the tape drive is supported.

• 1 a) eine erste Faltvorrichtung in perspektivischer Ansicht, wobei in einen Magazinrahmen ein Stapel von Kartonagen in Abwicklung aufgenommen sind, wobei eine Kartonage bereits mittels eines in dieser Figur nicht ersichtlichen Bandantriebes entlang eines Winkelrahmens derart nach unten befördert wurde, dass die Unterkante dieser Kartonage in Abwicklung auf einer unteren Anschlagfläche der Faltvorrichtung aufsteht.
• 1 b) die Rückansicht der in 1b) dargestellten Faltvorrichtung bei der die nach unten beförderte Kartonage bereits im Eingriff mit einem Faltrahmen steht, sowie
• 1c) die Schaltvorrichtung in einer Seitenansicht aus der ersichtlich ist, dass dem Faltrahmen jeweils beidseitig seitliche Faltwerkzeuge sowie ein unteres Faltwerkzeug zugeordnet ist, unterhalb dessen beidseitig Deckelschließer an die Stellfüße der Faltvorrichtung angelenkt sind,
• 1 d) die Faltvorrichtung in einer Frontansicht, sowie
• 2 a) die erste Faltvorrichtung in einer perspektivischen Ansicht, wobei mittels der beidseitig des Faltrahmens angeordneten seitlichen Faltwerkzeuge der in Abwicklung nach unten beförderte Karton bereits derart in den Faltrahmen eingepresst wurde, so dass die seitlichen Laschen der Kartonage gegenüber dem späteren Bodenelement um einen Winkel von 90° verschwenkt wurden
• 2 b) eine Rückansicht der ersten Faltvorrichtung, aus der ersichtlich ist, dass mittels des unteren Faltwerkzeuges in einem weiteren Schritt die untere Kartonlasche des unteren Faltwerkzeuges um einen Winkel von 90° umgeschwenkt werden, wobei dann in einem weiteren Schwenk um einen weiteren Winkel von 90° eine zweite, weiter innenliegende Kartonlasche zur Ausbildung einer Doppelwandung umgeschwenkt wurde, sowie
• 2 c) die erste Faltvorrichtung in einer Seitenansicht, aus der ersichtlich ist, dass der, unterhalb der unteren Faltwerkzeuge an den voneinander beabstandeten Stellfüßen der Faltvorrichtung beidseits der Kartonage, jeweils als Deckelschließer vorgesehene Schwenkhebel angelenkt sind,
• 2 d) die erste Faltvorrichtung in einer Frontansicht, aus der ersichtlich ist, wie mittels der seitlichen Faltwerkzeuge die beidseits der Kartonage schwenkbar an den Vertikalstreben der Faltvorrichtung angelenkten seitlichen Faltwerkzeuge, die Kartonage in den Faltrahmen eingepresst sind und mittels der unteren Faltwerkzeuge, die diesen Faltwerkzeugen zugewandten unteren Laschen der Kartonage zweifach umschwenkbar sind,
• 3 a) die erste Faltvorrichtung in einer perspektivischen Frontansicht, wobei der Faltrahmen mit dem bereits teilweise vorgefalteten Karton aus der bisherigen vertikalen Position in eine horizontale Position zwischen den beiden beidseits des Kartons angeordneten Stellfüßen verfahren wurde, wobei der Karton mittels der an den Stellfüßen angelenkten Deckelschließer geöffnet wurde und in diesem Zusammenhang mittels endseitig jeweils an den Deckelschließer angeformten Winkelelementen die Seiten- und Frontlaschen gegenüber dem Deckelelement umgefaltet wurden.
• 3 b) die erste Faltvorrichtung in der Position gemäß 3 a) in einer perspektivischen Rückansicht.
• 3 c) die erste Faltvorrichtung in der Position gemäß 3 a) in einer Seitenansicht, sowie
• 3 d) die erste Faltvorrichtung in der Position gemäß 3 a) in einer Rückansicht,
• 4 a) die erste Faltvorrichtung in einer perspektivischen Frontansicht nach dem Schließen des Deckelelementes mittels der Deckelschließer,
• 4 b) die erste Faltvorrichtung in der Position gemäß 4 a) in einer perspektivischen Rückansicht,
• 4 c) die erste Faltvorrichtung in der Position gemäß 4 a) in einer Seitenansicht und
• 4 d) die erste Faltvorrichtung in der Position gemäß 4 a) in einer Rückansicht.
• 5 a) eine zweite Faltvorrichtung in perspektivischer Ansicht, wobei in einem Magazinrahmen ein Stapel von Kartonagen in Abwicklung aufgenommen sind, wobei eine Kartonage bereits mittels eines in dieser Figur nicht ersichtlichen Bandantriebes entlang eines Winkelrahmens derart nach unten befördert wurde, dass die Unterkante dieser Kartonage in Abwicklung auf einer unteren Fläche der Faltvorrichtung aufsteht.
• 5 b) die Rückansicht der in 4 a) dargestellten Faltvorrichtung bei der die nach unten beförderte Kartonage bereits im Eingriff mit einem Faltrahmen steht,
• 6 eine zweite Faltvorrichtung in einer perspektivischen Ansicht, wobei mittels des Faltrahmens und des unteren Faltwerkzeuges der nach unten beförderter Karton bereits derart in den ersten Faltrahmen eingepresst wurde, sodass die seitlichen Laschen der Kartonage gegenüber dem späteren Bodenelement um einen Winkel von 90° verschwenkt wurden, sowie
• 7 die zweite Faltvorrichtung in perspektivischer Ansicht, bei welcher der erste Faltrahmen horizontal nach unten zwischen den beiden beidseits der Kartonage angeordneten Stellfüßen gefahren wurde, wobei zuvor das untere Faltwerkzeug wieder in dessen Ausgangsposition zurückgefahren wurde, sowie
• 8 die zweite Faltvorrichtung im perspektivischer Ansicht, bei der mittels des unteren Faltwerkzeugs die restliche nach unten beförderte Kartonage in den zweiten Faltrahmen eingepresst wurde, so dass die seitlichen Laschen der Kartonage um einen Winkel von 90° verschwenkt wurden, sowie
• 9 die zweite Faltvorrichtung in perspektivischer Ansicht, bei der der zweite Faltrahmen um einen Winkel von 90° verschwenkt wurde, wobei zuvor das untere Faltwerkzeug in seine Ausgangsposition zurückgefahren wurde, sowie
• 10 die zweite Faltvorrichtung in perspektivischer Ansicht, bei der der zweite Faltrahmen um einen Winkel von 90° zurück verschwenkt wurde, wodurch die nun gefaltete Kartonage entnehmbar ist.

The invention will be explained in more detail below with reference to two exemplary embodiments. Show it:

• 1 a) a first folding device in a perspective view, wherein in a magazine frame a stack of cardboard boxes are taken in settlement, a cardboard was already transported by means of a not shown in this figure tape drive along an angle frame down so that the lower edge of this cardboard in settlement on a gets up lower stop surface of the folding device.
• 1 b) the back view of in 1b) shown folding device in which the conveyed down cardboard is already in engagement with a folding frame, as well
• 1c ) the switching device in a side view from which it can be seen that the folding frame is assigned on both sides lateral folding tools and a lower folding tool below which lid closers are hinged to the feet of the folding device,
• 1 d) the folding device in a front view, as well
• 2 a) the first folding device in a perspective view, wherein by means of arranged on both sides of the folding frame side folding tools in the development downwardly conveyed cardboard was already pressed into the folding frame, so that the lateral tabs of the cardboard opposite the later bottom element pivoted by an angle of 90 ° were
• 2 B) a rear view of the first folding device, from which it can be seen that by means of the lower folding tool in a further step, the lower cardboard flap of the lower folding tool are swung by an angle of 90 °, in which then in a further swing by a further angle of 90 °, a second , further inside cardboard flap was swung to form a double wall, as well
• 2 c) the first folding device in a side view, from which it can be seen that the hinged below the lower folding tools at the spaced feet of the folding device on both sides of the cardboard, each provided as a lid closer swivel lever,
• 2 d) the first folding device in a front view, it can be seen how by means of the side folding tools on both sides of the cardboard hinged to the vertical struts of the folding device hinged side folding tools, the cardboard are pressed into the folding frame and by means of the lower folding tools, the folding straps facing lower tabs the cardboard box can be swiveled twice,
• 3 a) the first folding device in a perspective front view, wherein the folding frame was moved with the already partially prefolded cardboard from the previous vertical position in a horizontal position between the two arranged on both sides of the carton feet, the carton was opened by means of hinged to the feet lid closer and In this context, the side and front flaps against the cover element were folded over by means of end elements respectively formed on the lid closer angle elements.
• 3 b) the first folding device in the position according to 3 a) in a perspective rear view.
• 3 c) the first folding device in the position according to 3 a) in a side view, as well
• 3 d) the first folding device in the position according to 3 a) in a rear view,
• 4 a) the first folding device in a perspective front view after closing the lid element by means of the lid closer,
• 4 b) the first folding device in the position according to 4 a) in a perspective rear view,
• 4 c) the first folding device in the position according to 4 a) in a side view and
• 4 d) the first folding device in the position according to 4 a) in a rear view.
• 5 a) a second folding device in a perspective view, wherein in a magazine frame a stack of cardboard boxes are taken in settlement, a cardboard was already conveyed by means of a not shown in this figure tape drive along an angle frame down so that the lower edge of this cardboard in settlement on a gets up lower surface of the folding device.
• 5 b) the back view of in 4 a) shown folding device in which the transported down cardboard box is already in engagement with a folding frame,
• 6 a second folding device in a perspective view, wherein by means of the folding frame and the lower folding tool of bottom conveyed cardboard was already pressed in such a way in the first folding frame, so that the side flaps of the cardboard were pivoted relative to the later bottom element by an angle of 90 °, and
• 7 the second folding device in a perspective view, in which the first folding frame was moved horizontally down between the two arranged on both sides of the cardboard feeder legs, previously the lower folding tool was moved back to its original position, and
• 8th the second folding device in a perspective view, in which by means of the lower folding tool the remaining downwardly conveyed cardboard was pressed into the second folding frame, so that the side flaps of the cardboard were pivoted by an angle of 90 °, and
• 9 the second folding device in a perspective view, in which the second folding frame has been pivoted by an angle of 90 °, wherein previously the lower folding tool was moved back to its original position, and
• 10 the second folding device in a perspective view, in which the second folding frame has been pivoted back by an angle of 90 °, whereby the now folded cardboard can be removed.

1 a) shows in a perspective front view of a folding device 1 comprising an angle frame 3 consisting of two, which at a distance from each other, the at least the width of the cardboard to be supplied 2 corresponds, arranged vertical struts 6 . 6 ' , is formed, the underside on two in one piece to the vertical struts 6 . 6 ' molded feet 5 . 5 ' stand. It is in the upper part of the folding device 1 a magazine frame 8th between the vertical struts 6 . 6 ' suspended, the underside of a footprint 10 is completed. On this footprint 10 can be a stack of cardboard boxes 2 be settled in settlement, these cardboard boxes 2 at least partially from one on one of the two vertical struts 6 molded hollow tube 15 , the upper side of the footprint 10 is arranged, and in the one, at least substantially L-shaped plug pipe 16 so inserted, this hollow tube 15 and the inserted plug-in tube 16 the stack of cardboard boxes 2 partially surround. This is the plug pipe 16 with one within the hollow tube 15 arranged spring element connected such that the plug pipe 16 in the direction of the cardboard boxes 2 is pressed. In this regard, a deformation of the cardboard boxes 2 to avoid, the plug-in tube is at least partially from a damping buffer element 20 encompassed.

Below the footprint 10 is a control 23 for operating the folding device 1 attached.

According to the in 1 b) illustrated perspective rear view of the folding device 1 is on the angle frame 3 a belt drive 11 attached to the cardboard boxes 2 by means of the plug pipe 16 be pressed, so in the event that the tape drive 11 by means of the control element 23 is set in motion, each the tape drive 11 nearest cardboard box 2 within the angle frame 3 is transported down until the bottom edge of this cardboard box 2 on a lower stop surface of a within the angle frame 3 swiveling, suspended folding frame 12 gets up. On both sides of the folding frame 12 are on the two vertical struts 6 . 6 ' each side folding tools 22 . 22 ' hinged.

As shown in 1 c) are the side folding tools 22 . 22 ' on the underside of a likewise pivoting lower folding tool 21 under attack. Again below the lower folding tool 21 are on the two sides each at the two feet 5 . 5 ' two lid closers 27 . 27 ' hinged pivotally.

1 d) shows the folding device explained above 1 in a rear view.

2 a) again shows in a perspective front view of the folding device after the cardboard boxes driven down on both sides 2 by means of laterally arranged lateral folding tools 22 . 22 ' each have been swiveled at an angle of 90 ° after you. At the same time the lateral folding tools are advised. 22 . 22 ' in abutment with the later cardboard surface and are folded after this pivoting operation in the direction of movement shown with an arrow in this figure, so that the settlement of the cardboard 2 in the horizontally suspended between the vertical bars folding frame 12 be pressed so that the first about folding frame 12 Set up on both sides protruding side tabs at an angle of 90 ° to the cardboard surface.

In a further step, now also the lower folding tool 21 initially pivoted in through an angle of 90 °, thereby laying the lower cardboard flap over, is then again pivoted by a further 90 °, thereby pivoting the cardboard flap again, so that forms a double wall in this area.

Also shows 2 c) the folding device 1 in this state in a side view, as well 2 d) in a perspective rear view.

As shown in 3 a) then becomes the folding frame 12 pivoted from its previous vertical position by means of a pivoting device not shown here in a horizontal position and by means of a likewise not shown linear guide between the two adjustable feet 5 . 5 ' moved forward, thereby the leading edge of the closed lid of the meanwhile formed cardboard with the lid closers 27 . 27 ' engages in such a way that these end with the lid closer 27 . 27 ' each molded angle elements 31 . 31 ' engage with the front corners of the carton cover. Then these lid closers 27 . 27 ' pivoted from the previous horizontal position in a vertical position and take the lid of the carton, which is thereby opened. At the same time the angular elements caused 31 . 31 ' in that the side and front flaps of the cover are each pivoted by 90 °.

Subsequently, the box is as shown in 1 a) as intended in the open position in the folding device 1 and can be filled.

The 3 b) - d ) each show the folding device 1 in this state in a rear perspective view, in a side view, as well as in the front view.

After filling the box, preferably with a pizza, then the lid closer 27 . 27 ' as shown in 4 a) again swung back by 90 °, thus the cardboard properly closed, so that the filled cardboard can be removed either by the operator or the customer himself from the fall device.

After removal of the carton then the folding frame 12 in a manner not shown here by means of the aforementioned linear guide and the pivot mechanism moved back to its vertical position, before then by means of the belt drive 11 again a cardboard box in settlement after triggering this process on the control 23 from the magazine frame 8th moved down so that the cardboard 2 analogous to the representation in 1 in contact with the folding frame 12 stands.
Above is thus a first folding device 1 described, which allows one to settle in a magazine frame 8th set stack of cardboard boxes 2 , mainly pizza boxes, to bring them into their spatial form, to equip them and then remove closed.

5 shows in a perspective front view of a second folding device 1 comprising an angle frame 3 consisting of two, which at a distance from each other, the at least the width of the cardboard to be supplied 2 corresponds, arranged vertical struts 6 . 6 ' , is formed, the underside on two in one piece to the vertical struts 6 . 6 ' molded feet 5 . 5 ' stand. It is in the upper part of the folding device 1 a magazine frame 8th between the vertical struts 6 . 6 ' suspended, the underside of a footprint 10 is completed. On this footprint 10 can be a stack of cardboard boxes 2 be settled in settlement, these cardboard boxes 2 at least partially from one on one of the two vertical struts 6 molded hollow tube 15 , the upper side of the footprint 10 is arranged, and in the one, at least substantially L-shaped plug pipe 16 so inserted, this hollow tube 16 and the inserted plug-in tube 16 the stack of cardboard boxes 2 partially surround. This is the plug pipe 16 with one within the hollow tube 15 arranged spring element connected such that the plug pipe 16 in the direction of the cardboard boxes 2 is pressed. In this regard, a deformation of the cardboard boxes 2 to avoid, the plug-in tube is at least partially from a damping buffer element 20 encompassed. Further shows 5 below the footprint 10 both a control 23 for operating the folding device 1 as well as the lower folding tool 21 , which is in the initial position.

According to the in 5 b) illustrated perspective rear view of the folding device 1 is on the angle frame 3 a belt drive 11 attached to the cardboard boxes 2 by means of the plug pipe 16 be pressed, so in the event that the tape drive 11 by means of the control element 23 is set in motion, each the tape drive 11 nearest cardboard box 2 within the angle frame 3 is transported down until the bottom edge of this cardboard box 2 on a lower surface of the first of two folding frames 12 which within the angle frame 3 swiveling, hung up, getting up.

6 shows in a front perspective view of the second folding device 1 in which the cardboard box 2 by means of the lower folding tool 21 in the first folding frame 12 was pressed and also by means of the lower folding tool 21 the lower flap of the cardboard box 2 was folded in by 180 °.

7 shows in a front perspective view of the second folding device 1 after the cardboard box 2 by means of the first folding frame 12 Move down to the horizontal and the lower folding tool 21 was returned to its original position.

8th shows in a front perspective view of the second folding device 1 , at the cardboard packaging 2 with the lower folding tool 21 in the second folding frame 12 ' was pressed.

9 shows in a front perspective view of the second folding device 1 after filling the carton, preferably with a pizza, in which the second folding frame 12 ' has been pivoted by an angle of 90 °, so that this rests on the first folding frame, previously the lower folding tool 21 was returned to its original position.

10 shows in a front perspective view of the second folding device 1 in which the second folding frame 12 ' was pivoted back by an angle of 90 ° to its original position, whereby the folding process is completed and the folded cardboard 2 can be removed.

Above is thus a second folding device 1 described, which allows one to settle in a magazine frame 8th set stack of cardboard boxes 2 , mainly pizza boxes, to bring them into their spatial form, to equip them and then remove closed.

LIST OF REFERENCE NUMBERS

1

folding

2

cardboard packaging

3

Winkelrahmen

4, 4 '

angular elements

5, 5 '

Leveling feet

6, 6 '

vertical struts

7

side surface

8th

magazine frame

10

footprint

11

capstan

12, 12 '

folding frame

14

frame element

15

hollow tube

16

plug pipe

20

buffer element

21

lower folding tool

22, 22 '

lateral folding tools

23

operating element

25

floor area

27, 27 '

lid closers

30

cover element

31, 31 '

angle element

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19901237 A1 [0002]
• DE 19901238 A1 [0003]

Claims (19)

Folding device (1) for fully unfolded cardboard boxes (2) in unwinding, preferably pizza boxes, characterized in that such cardboard boxes (2) by means of the folding device (1) having an angle frame (3) comprising at least two, at a distance from each other, the at least the width of the cardboard (2) to be supplied, arranged angle elements (4, 4 '), each having a leveling foot (5, 5') at which, preferably at right angles, in each case a vertical strut (6, 6 ') is hinged, are constructed, wherein at these vertical struts (6,6 ') from each other at a distance corresponding to at least the width of the supplied cardboard (2), respectively from the footing of the folding device (1), one on the vertical struts (6 , 6 ') facing side surface (7) open magazine frame (8), which at least by the vertical struts (6,6'), the footprint (10), the belt drive (11) and at least one of the two vertical strut n (6, 6 ') integrally formed hollow tube (15), which is preferably arranged on the upper side of the footprint (10), and in which a, at least substantially L-shaped plug-in tube (16) is inserted such that this hollow tube (15) and the inserted plug-in tube (16), which surrounds vertical cardboard boxes (2) at least in part, is preferably constructed with side plates, the positioning surface (10) being a belt drive (11), preferably an electric motor driven belt drive (11), is assigned such that a respective in the magazine frame (8) recorded vertically, foremost cardboard (2), ie each of the tape drive (11) adjacent cardboard (2), arranged below the footprint, also on the vertical struts (6th , 6 ') fixed folding frame (12, 12'), which at least one lower folding tool (21) and two right and left side arranged lateral folding tools (22, 22 '), by means of the preferred electric motor ch driven belt drive (11), and / or by means of a sensor-controlled propulsion of the belt drive (11), can be fed such that the lower edge of this cardboard (2) on a in the direction of the cardboard (2) projecting surface of the folding frame (12, 12 ' ), and in the following by means of the folding frame (12, 12 ') and the associated folding tools (21, 22, 22') is foldable in a predetermined spatial form. Folding device (1) after Claim 1 , characterized in that the U-shaped plug-in tube (16) in each case via a spring element with the both sides of the stack of vertical cardboard boxes (2) adjacent hollow tubes (15) is connected such that the U-shaped plug on the tape drive (11 ) facing away from the magazine frame (8) to which in this magazine frame (8) recorded cardboard (2) is pressed, thus the cardboard (2) by the spring force of the spring element in the direction of the belt drive (11) are pressed. Folding device (1) according to one or more of the preceding claims, characterized in that the U-shaped plug-in tube (16) at least in the contact pressure on the in the frame member (14) received cardboard (2), at least in sections, of one, preferably made of plastic or foam, produced buffer element (20) is sheathed. Folding device (1) according to one or more of the preceding Claims 1 - 4 , characterized in that the mounting surface (10) of the magazine frame (8) either obliquely or tilted such tiltable on the angle elements (4, 4 ') is fixed, that the footprint (10) in the direction of the angle elements (4, 4') is inclined down. Folding device (1) according to one or more of the preceding claims, characterized in that on the underside of the footprint (10) of the folding device (1) an operating element (23) is arranged, that in particular with the electric motor driven belt drive (11), the folding frame (12, 12 ') and the folding tools (21, 22, 22') is operatively connected. Folding device (1) according to one or more of the preceding claims, characterized in that on the two-sided adjustable feet (5, 5 ') of the folding device (1) each an electric motor driven lever element as a lid closer (27, 27') is arranged. Folding device (1) after Claim 1 . 5 and 6 , characterized in that each in the folding frame (12, 12 ') recorded cardboard (2) by means of both sides of the folding frame (12) arranged lateral folding tools (22, 22') are pivotable at an angle of 90 ° such that these on the vertical struts (6, 6 ') facing away from the bottom surface (25) of the cardboard (2), and further these lateral folding tools (22, 22') are now each movable in the direction of the vertical struts (6, 6 '), in that the lateral tabs of the cardboard (2), which are arranged on both sides of the bottom surface of the cardboard (2), can be erected at an angle of at least approximately 90 ° to the bottom surface, preferably along fold lines impressed into the cardboard (2). Folding device (1) after Claim 7 , characterized in that in a further step, the lower folding tool (21) is again pivotable through an angle of 90 ° and thereby, preferably along a vorgeprägten fold line, one of the lower side Abstellfläche (10) of the lower folding tool (21) remotely located lower Cardboard flap of the cardboard (2) is foldable, then with a further rotation of the lower folding tool (21) from the underside footprint (10) of the cardboard (2) of the lower folding tool (21) arranged less distant cardboard tab to form a double wall in this Area also, preferably along a parallel to the footprint of the cardboard (2) extending embossed fold line, can be folded. Folding device (1) after Claim 7 or 8th , characterized in that the prefolded cardboard (2) from the vertical position by means of pivotally hinged folding frame (12) is movable into a horizontal position, then two, on both sides of the cardboard on the feet (5, 5 ') pivotally hinged lid closer ( 27, 27 '), which are in engagement with the later cover element (30) of the cardboard (2), wherein the lid closer (27, 27') starting from a horizontal position by an angle of 90 ° in a vertical position with entrainment of Cover element (30) are pivotable so that the cardboard (2) is opened. Folding device (1) after Claim 9 , characterized in that on both sides of the cardboard (2) arranged lid closer (27, 27 ') end each with an angle element (31, 31') are equipped such that simultaneously with the pivoting of the lid closer (27, 27 ') to the opening the cardboard (2) the side and front flaps of the cardboard (2) by an angle of 90 °, preferably along the pre-marked fold line are pivotable, ie opposite the bottom element of the cardboard (2) are erectable. Folding device (1) after Claim 10 , characterized in that, preferably after filling of the cardboard (2) by means of the operating element (23) further pivotal movement of the both sides of the cardboard (2) arranged lid closer (27, 27 ') by preferably an angle of 90 ° to close the cardboard (2) can be triggered such that by means of the folding device (1) formed side and front flaps of the lid of the cardboard (2) in abutment and / or intermediate position to the side and front flaps of the bottom of the cardboard (2) are pivoted. Folding device (1) after Claim 11 , characterized in that after removing the filled and closed cardboard (2), the lid closers (27,27) are each pivotable at an angle of 180 ° back to the starting position. Folding device (1) for fully unfolded cardboard boxes (2) in unwinding, preferably pizza boxes, characterized in that such cardboard boxes (2) by means of the folding device (1) having an angle frame (3) comprising at least two, at a distance from each other, the at least the width of the cardboard (2) to be supplied, arranged angle elements (4, 4 '), each having a leveling foot (5, 5') at which, preferably at right angles, in each case a vertical strut (6, 6 ') is hinged, are constructed, wherein at these vertical struts (6,6 ') from each other at a distance corresponding to at least the width of the supplied cardboard (2), respectively from the footing of the folding device (1), one on the vertical struts (6 , 6 ') facing side surface (7) open magazine frame (8), which at least by the vertical struts (6,6'), the footprint (10), the belt drive (11) and at least one of the two vertical strut n (6, 6 ') integrally formed hollow tube (15), which is preferably arranged on the upper side of the footprint (10), and in which a, at least substantially L-shaped plug-in tube (16) is inserted such that this hollow tube (15) and the inserted plug-in tube (16), which surrounds vertical cardboard boxes (2) at least in part, is preferably constructed with side plates, the positioning surface (10) being a belt drive (11), preferably an electric motor driven belt drive (11), it can be fed in such a way that the lower edge of this cardboard layer (2) rests on a surface of the folding frame (12, 12 ') projecting in the direction of the cardboard (2) and / or can be moved into this position by means of a sensor-controlled drive of the belt drive (11) and in the following means of the folding frame (12, 12 ') and the lower folding tool (21) is foldable in a predetermined spatial form. Folding device (1) after Claim 13 , characterized in that on the underside of the footprint (10) of the folding device (1) an operating element (23) is arranged that in particular with the electric motor driven belt drive (11), the folding frame (12, 12 ') and the lower folding tool ( 21) is operatively connected. Folding device (1) after Claim 14 , characterized in that in the first folding frame (12) recorded cardboard (2) by means of the lower folding tool (21) in this folding frame (12) is pressed, whereby the lateral tabs are pivoted at an angle of 90 ° and by means of the lower Folding tool (21) the lower flap is pivoted through an angle of 180 °, wherein then the lower folding tool (21) returned to its original position and the first folding frame (12) is brought into the horizontal, wherein then the cardboard (2) through the lower folding tool (21) in the second folding frame (12 ') is pressed and the cardboard (2) is filled. Folding device (1) after Claim 15 , characterized in that preferably after filling, by means of the control element in another Step of the second folding frame (12 ') by an angle of 90 ° on the first folding frame (12) is pivotable, whereby the cardboard (2) is closed, wherein the second folding frame (12') after repeated pivoting from an angle of 90 ° returned to its original position and the cardboard (2) is removable. Folding device (1) after Claim 13 - 16 , characterized in that the U-shaped plug-in tube (16) in each case via a spring element with the both sides of the stack of vertical cardboard boxes (2) adjacent hollow tubes (15) is connected such that the U-shaped plug on the tape drive (11 ) facing away from the magazine frame (8) to which in this magazine frame (8) recorded cardboard (2) is pressed, thus the cardboard (2) by the spring force of the spring element in the direction of the belt drive (11) are pressed. Folding device (1) after Claim 13 - 17 , characterized in that the U-shaped plug-in tube (16), at least in the contact area to the in the frame member (14) accommodated cardboard (2), at least partially, of a, preferably made of plastic or foam, buffer element (20) produced , Folding device (1) after Claim 13 - 18 , characterized in that the mounting surface (10) of the magazine frame (8) either obliquely or tilted such tiltable on the angle elements (4, 4 ') is fixed, that the footprint (10) in the direction of the angle elements (4, 4') is inclined down.

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