EP0472981A1 - Method and machine for erecting a foldable box - Google Patents

Method and machine for erecting a foldable box Download PDF

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Publication number
EP0472981A1
EP0472981A1 EP91113396A EP91113396A EP0472981A1 EP 0472981 A1 EP0472981 A1 EP 0472981A1 EP 91113396 A EP91113396 A EP 91113396A EP 91113396 A EP91113396 A EP 91113396A EP 0472981 A1 EP0472981 A1 EP 0472981A1
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EP
European Patent Office
Prior art keywords
flaps
side walls
walls
rear wall
wall
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.)
Granted
Application number
EP91113396A
Other languages
German (de)
French (fr)
Other versions
EP0472981B1 (en
Inventor
Wilhelm Fischer
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.)
WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH
4P Nicolaus Kempten GmbH
Original Assignee
WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH
4P Nicolaus Kempten GmbH
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Application filed by WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH, 4P Nicolaus Kempten GmbH filed Critical WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH
Publication of EP0472981A1 publication Critical patent/EP0472981A1/en
Application granted granted Critical
Publication of EP0472981B1 publication Critical patent/EP0472981B1/en
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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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • 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
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • 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
    • B31B2100/0024—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
    • B31B2110/10—Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/70—Construction of rigid or semi-rigid containers having corrugated or pleated walls
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings

Definitions

  • the invention relates to a method and a machine for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, flaps being formed on the side walls, which flaps are formed in the region of the front and the rear wall are folded and which is at least partially coated with a sealable plastic.
  • Folding boxes of this type should be set up quickly because they are used in large numbers. At the same time, however, a high quality of the erection process is required to obtain dimensionally accurate folding boxes.
  • the invention is based on the object of demonstrating a method and a machine with which the erection can be carried out with very high precision and at the same time very quickly.
  • This object is achieved in that first the two side walls are erected by pressing the cardboard blank into a U-shaped lower mold, that the flaps are folded in via rotating drivers, and that the rear wall and the front wall are heated to such an extent that the plastic coating is sealable becomes, whereupon the rear wall and the front wall and the flaps are pressed against each other and sealed together.
  • the flaps designed as dust flaps are first folded in and then the rear wall and the front wall are pressed against these dust flaps and sealed there.
  • a very stable and largely sealed folding box can thus be produced very efficiently.
  • Another very advantageous embodiment of the invention is that after erecting the two side walls, the front wall and the rear wall are first unfolded and then the flaps connected to both the side walls and the other two walls are unfolded to form gussets on these walls and with the gussets and with the walls pressed and sealed.
  • the folding box produced in this way is not only very precise but also tight, whereby the erection can also take place at a very high speed.
  • a machine for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, between which and the side walls dust flaps are provided, and which has at least on its inside of the box with a sealable plastic is coated, is characterized in that a U-shaped lower mold attached to a transport chain is provided, which has a base plate and a front and rear leg each, and that this lower mold is assigned a stamp attached to another chain, that on both sides of these transport chains Locking wheels are provided, each with a recess, which are used to fold in the dust flaps, to which holding rails for the folded-in dust flaps connect, that a hot-air nozzle is provided on both sides of the closing wheels, the output of which access openings are directed against the inside of the front and the rear wall, and that pressure rails are provided behind the hot air nozzles for applying the front and rear walls to the dust flaps and the mutual pressing.
  • This machine allows a folding box to be erected in a functionally correct manner, and in addition to a very high precision of the folding box, a very high working speed can be achieved.
  • Another machine for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, flaps being formed on the two side walls, which also form gussets with the other two Walls are connected, characterized in that a U-shaped lower mold attached to a transport chain is provided, which has a base plate and a front and rear leg, and that this lower mold is associated with a stamp attached to another chain, that on both sides of this Transport chains rails are provided for folding in the front and rear walls, to which closing wheels provided with a recess are used, which serve to fold in the flaps, hot air nozzles being provided directly in front of the closing wheels, which are used to heat the outside of the front or Back wall and the gusset and the flaps are used, and that pressure rails for pressing the flaps with the gussets and the front and rear walls are arranged in connection with the closing wheels.
  • the two closing wheels are provided with a circumferential groove, which is preferably up to enough to the bottom of the recess and in which the holding rails can intervene.
  • the holding rails can be extended so far that they complement each other with the locking wheels.
  • the pressure rails are provided with recesses, in which pressure rollers are arranged, which are spring-mounted.
  • levers are pivotally mounted on the underside of the pressure rails, on which springs act and which carry the pressure rollers.
  • the form stamp is guided in a rail, which forcibly adjusts the distance of the form stamp from the bottom plate of the lower mold.
  • This configuration makes it possible to dispense with further control elements for the form stamp.
  • U-shaped lower molds 4 are fastened to the lower transport chain 2 and run around this transport chain and each have a base plate 5 and a front and rear leg 6, 7.
  • Each of these U-shaped lower molds 4 is assigned a die 8, which is attached to the upper conveyor chain 3 and rotates with it.
  • a guide rail is provided within the upper transport chain 3, which forcibly guides the molding die in its vertical position and brings it into engagement with the U-shaped lower mold.
  • a cardboard blank 10 is inserted between the lower mold 4 and the die 8.
  • This cardboard blank has a bottom 11, on each of which a side wall 14 or 15 is articulated via fold lines 12 and 13.
  • Each of these two side walls 14, 15 laterally carries a dust flap 16, 17 and 18, 19, respectively, which are hinged to the two side walls via folding lines 20 and 21.
  • a front wall 23 and a rear wall 24 are also articulated on the floor 11 via these folding lines 20, 21.
  • the rear wall 24 carries, via a further folding line 25, a cover flap 26 which has side wall flaps 27, 28 and a front wall flap 29 which cover the two side walls 14, 15 and the front wall 23 in the fully erected state of the folding box.
  • the two locking wheels 30 which rotate in opposite directions and are provided with a circumferential recess 32.
  • the two closing wheels are each equipped with a circumferential groove 33, in which a subsequent folding strip 34 engages with one end.
  • a hot air nozzle 35 is arranged laterally next to this folding strip 34 and has its outlet openings 36 on the side facing away from the folding strip 34.
  • a further folding strip 37 is arranged, which extends from below the closing wheels 30 to at least the height of the first folding strip 34 and is detached from a pressure rail 38.
  • the pressure rail 38 is provided with rotatably mounted pressure rollers 39 which are embedded in corresponding recesses 40 in the pressure rail and are seated on levers 41 mounted on the underside of the rail. Invisible springs attack the levers, which press them and thus the rollers outwards.
  • the die When the die is lowered, it presses the bottom 11 of the carton blank 10 according to FIG. 4 into the U-shaped lower mold 4, the two side walls 14 and 15 being raised laterally stand and are clamped between the two legs 6.7 and the die.
  • the dust flaps 16, 17, 18, 19 protrude laterally from the lower mold 4.
  • the two front dust flaps 17 and 19 are placed by the latter on the die 8 and held in this position by the folding strips 34.
  • the two rear dust flaps 16 and 18 get into the recess 32 of the two locking wheels 30 and are also applied to the form stamp by their rotational movement and then held in this position by the folding strips 34.
  • the folding strips 37 raise the front wall 23 and the rear wall 24 somewhat, so that the hot air coming from the hot air nozzles 35 or their outlet nozzles 36 reaches the inner surface of these two walls coated with sealable plastic.
  • the two folding strips 37 press these two walls up until they come into contact with the dust flaps, the actual pressing process being carried out by the subsequent pressure rails 38 or their pressure rollers 39, which directly adjoin the folding strips 37. Due to the resilient pressure of these pressure rollers, even slight differences in material thickness can be compensated for.
  • the machine 50 according to FIG. 3 largely corresponds to the machine 1 described above, only the hot air nozzles 35 are arranged in front of the closing wheels 30 and in front of the hot air nozzles there are still rails 51 on both sides of the transport chains 2, 3 for folding in the front and rear walls of the in 5 shown blank 61 or the folding box lower part 80 erected therefrom (FIG. 6).
  • the flat-lying cardboard blank 61 shown in FIG. 5 has a bottom section 62, to each of which a side wall section 65 or 66 is articulated via fold lines 63 and 64.
  • two end wall sections 67 and 68 are integrally formed on the bottom section, which are also connected to the side wall sections 65 and 66 via fold lines 63 and 64.
  • Two further folding lines 69, 70 and 71, 72 each start from the two folding lines 63 and 64, through which gusset corners 73, 74, 75, 76 are divided between the side wall sections and the end wall sections.
  • This gusset corners 73 to 76 and the section of the respective end wall section 67 or 68 divided by the line 77 or 78 is provided on the outside and the inside with a sealable plastic layer, which is shown in FIG. 5 by hatching.
  • the two side wall sections 65 and 66 are first folded upward about the fold lines 63 and 64 by pressing into the U-shaped lower mold; then the two end wall sections 67 and 68 are bent upwards by the folding rail 51. After heating by the healing air nozzles 35, the gusset corners and the end sections of the side wall sections are then unfolded by the closing wheels 30, whereupon all three layers are pressed together and sealed by the pressure rails 38.

Abstract

Method for erecting a foldable box from a one-part cardboard blank which has a bottom surface, side walls articulated on this via folding lines and a front wall and rear wall, there being formed on the side wall flaps which are folded into the region of the front and rear walls, and which is coated at least partially with a sealable plastic. At the same time, the two side walls are first erected in that the cardboard blank is pressed into a U-shaped bottom mould (4). The flaps are folded in by means of rotating drivers (30); the rear wall and front wall are heated until the plastic coating becomes sealable, whereupon the rear wall and front wall and the flaps are pressed against one another and sealed together. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren und eine Maschine zum Aufrichten einer Faltschachtel aus einem einteiligen Kartonzuschnitt, der eine Bodenfläche, daran über Faltlinien angelenkte Seitenwände sowie eine Vorder- und eine Rückwand aufweist, wobei an den Seitenwänden Klappen angeformt sind, die in den Bereich der Vorder- und Rückwand gefaltet werden und der wenigstens abschnittweise mit einem siegelfähigen Kunststoff beschichtet ist.The invention relates to a method and a machine for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, flaps being formed on the side walls, which flaps are formed in the region of the front and the rear wall are folded and which is at least partially coated with a sealable plastic.

Das Aufrichten derartiger Faltschachteln soll, da sie in großer Stückzahl verwendet werden, schnell erfolgen. Dabei ist aber gleichzeitig eine hohe Qualität des Aufrichtevorganges erforderlich um maßgenaue Faltschachteln zu erhalten.Folding boxes of this type should be set up quickly because they are used in large numbers. At the same time, however, a high quality of the erection process is required to obtain dimensionally accurate folding boxes.

Der Erfindung liegt die Aufgabe zu grunde ein Verfahren und eine Maschine aufzuzeigen, mit denen das Aufrichten mit sehr hoher Präzision und gleichzeitig sehr schnell durchführbar ist.The invention is based on the object of demonstrating a method and a machine with which the erection can be carried out with very high precision and at the same time very quickly.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zuerst die beiden Seitenwände durch Eindrücken des Kartonzuschnittes in eine U-förmige Unterform aufgerichtet werden, daß über sich drehende Mitnehmer die Klappen eingefaltet werden, und daß die Rückwand und die Vorderwand soweit erwärmt wird, daß die Kunststoffbeschichtung siegelfähig wird, worauf die Rückwand und die Vorderwand sowie die Klappen gegeneinander gepreßt und mit einander versiegelt werden.This object is achieved in that first the two side walls are erected by pressing the cardboard blank into a U-shaped lower mold, that the flaps are folded in via rotating drivers, and that the rear wall and the front wall are heated to such an extent that the plastic coating is sealable becomes, whereupon the rear wall and the front wall and the flaps are pressed against each other and sealed together.

Mit diesem Verfahren wird eine exakt und immer gleichbleibend aufgerichtete Faltschachtel in äußerst rationeller Weise hergestellt.With this method, an exactly and always consistently erected folding box is produced in an extremely efficient manner.

Bei einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß nach dem Aufrichten der beiden Seitenwände über sich drehende Mitnehmer zuerst die als Staubklappen ausgebildeten Klappen eingefaltet werden und dann die Rückwand und die Vorderwand gegen diese Staubklappen gepreßt und dort angesiegelt werden.In an advantageous embodiment of the invention it is provided that after the erection of the two side walls via rotating drivers, the flaps designed as dust flaps are first folded in and then the rear wall and the front wall are pressed against these dust flaps and sealed there.

Damit ist eine sehr stabile und weitgehend dichte Faltschachtel sehr rationell hergestellbar.A very stable and largely sealed folding box can thus be produced very efficiently.

Eine ebenfalls sehr vorteilhafte Ausgestaltung der Erfindung liegt darin, daß nach dem Aufrichten der beiden Seitenwände zuerst die Vorderwand und die Rückwand aufgefaltet werden und dann die sowohl mit den Seitenwänden als auch mit den anderen beiden Wänden verbundenen Klappen unter Bildung von Zwickeln auf diese Wände aufgefaltet und mit den Zwickeln und mit den Wänden verpreßt und versiegelt werden.Another very advantageous embodiment of the invention is that after erecting the two side walls, the front wall and the rear wall are first unfolded and then the flaps connected to both the side walls and the other two walls are unfolded to form gussets on these walls and with the gussets and with the walls pressed and sealed.

Die so hergestellte Faltschachtel ist nicht nur sehr präzise sondern auch dicht, wobei das Aufrichten ebenfalls mit sehr hoher Geschwindigkeit ablaufen kann.The folding box produced in this way is not only very precise but also tight, whereby the erection can also take place at a very high speed.

Eine erfindungsgemäße Maschine zum Aufrichten einer Faltschachtel aus einem einteiligen Kartonzuschnitt, der eine Bodenfläche, daran über Faltlinien angelenkte Seitenwände sowie eine Vorder- und eine Rückwand aufweist, zwischen denen und den Seitenwänden Staubklappen vorgesehen sind und der wenigstens auf seiner Schachtel-Innenseite mit einem siegelfähigen Kunststoff beschichtet ist, ist dadurch gekennzeichnet, daß eine an einer Transportkette befestigte U-förmige Unterform vorgesehen ist, die eine Bodenplatte und je einen vorderen und hinteren Schenkel aufweist, und daß dieser Unterform ein an einer weiteren Kette befestigter Formstempel zugeordnet ist, daß beiderseits dieser Transportketten mit je einer Aussparung versehene Schließräder vorgesehen sind, die zum Einfalten der Staubklappen dienen, an die sich Halteschienen für die eingefalteten Staubklappen anschließen, daß im Anschluß an die Schließräder beiderseits je eine Heißluftdüse vorgesehen ist, deren Austrittsöffnungen gegen die Innenseite der Vorder- bzw. der Rückwand gerichtet sind, und daß hinter den Heißluftdüsen Andrückschienen zum Anlegen von Vorder- und Rückwand an die Staubklappen und dem gegenseitigen Verpressen vorgesehen sind.A machine according to the invention for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, between which and the side walls dust flaps are provided, and which has at least on its inside of the box with a sealable plastic is coated, is characterized in that a U-shaped lower mold attached to a transport chain is provided, which has a base plate and a front and rear leg each, and that this lower mold is assigned a stamp attached to another chain, that on both sides of these transport chains Locking wheels are provided, each with a recess, which are used to fold in the dust flaps, to which holding rails for the folded-in dust flaps connect, that a hot-air nozzle is provided on both sides of the closing wheels, the output of which access openings are directed against the inside of the front and the rear wall, and that pressure rails are provided behind the hot air nozzles for applying the front and rear walls to the dust flaps and the mutual pressing.

Diese Maschine erlaubt den funktionsgerechten Ablauf eines Aufrichtvorganges einer Faltschachtel, wobei neben einer sehr hoher Präzision der Faltschachtel eine sehr große Arbeitsgeschwindigkeit erzielt werden kann.This machine allows a folding box to be erected in a functionally correct manner, and in addition to a very high precision of the folding box, a very high working speed can be achieved.

Eine weitere erfindungsgemäße Maschine zum Aufrichten einer Faltschachtel aus einem einteiligen Kartonzuschnitt, der eine Bodenfläche, daran über Faltlinien angelenkte Seitenwände sowie eine Vorder- und eine Rückwand aufweist, wobei an den beiden Seitenwänden Klappen angeformt sind, die unter Bildung von Zwickeln auch mit den anderen beiden Wänden verbunden sind, ist dadurch gekennzeichnet, daß eine an einer Transportkette befestigte U-förmige Unterform vorgesehen ist, die eine Bodenplatte und je einen vorderen und hinteren Schenkel aufweist, und daß dieser Unterform ein an einer weiteren Kette befestigter Formstempel zugeordnet ist, daß beiderseits dieser Transportketten Schienen zum Einfalten der Vorder- und Rückwand vorgesehen sind, an welche sich mit einer Aussparung versehene Schließräder anschließen, die zum Einfalten der Klappen dienen, wobei unmittelbar vor den Schließrädern Heißluftdüsen vorgesehen sind, welche zum Erwärmen der Außenseite der Vorder- bzw. Rückwand sowie der Zwickel und der Klappen dienen, und daß im Anschluß an die Schließräder Andrückschienen zum Verpressen der Klappen mit den Zwickeln und der Vorder- und Rückwand angeordnet sind.Another machine according to the invention for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, flaps being formed on the two side walls, which also form gussets with the other two Walls are connected, characterized in that a U-shaped lower mold attached to a transport chain is provided, which has a base plate and a front and rear leg, and that this lower mold is associated with a stamp attached to another chain, that on both sides of this Transport chains rails are provided for folding in the front and rear walls, to which closing wheels provided with a recess are used, which serve to fold in the flaps, hot air nozzles being provided directly in front of the closing wheels, which are used to heat the outside of the front or Back wall and the gusset and the flaps are used, and that pressure rails for pressing the flaps with the gussets and the front and rear walls are arranged in connection with the closing wheels.

Mit dieser Maschine ist es möglich, dichte Faltschachtel-Unterteile in hoher Präzision und mit großer Geschwindigkeit herzustellen.With this machine it is possible to produce tight folding box lower parts with high precision and at high speed.

Sehr vorteilhaft ist es dabei auch, wenn erfindungsgemäß die beiden Schließräder mit einer Umfangsrille versehen sind, die vorzugsweise bis zum Grund der Aussparung reicht und in welche die Halteschienen einzugreifen vermögen.It is also very advantageous if, according to the invention, the two closing wheels are provided with a circumferential groove, which is preferably up to enough to the bottom of the recess and in which the holding rails can intervene.

Dadurch können die Halteschienen soweit verlängert werden, daß sie sich mit den Schließrädern sinnvoll ergänzen.As a result, the holding rails can be extended so far that they complement each other with the locking wheels.

Ebenfalls sehr vorteilhaft ist es, wenn erfindungsgemäß die Andrückschienen mit Aussparungen versehen sind, in welchen Andrückrollen angeordnet, die federelastisch gelagert sind.It is also very advantageous if, according to the invention, the pressure rails are provided with recesses, in which pressure rollers are arranged, which are spring-mounted.

Dadurch wird nicht nur das Andrücken sehr materialschonend durchgeführt, sondern die Anpreßkraft ist auch leicht einstellbar.This means that not only is the pressure applied very gently on the material, but the contact pressure is also easily adjustable.

Dabei hat es sich als sehr günstig erwiesen, wenn erfindungsgemäß an der Unterseite der Andrückschienen Hebel schwenkbar gelagert sind, an denen Federn angreifen und welche die Andrückrollen tragen.It has proven to be very favorable if, according to the invention, levers are pivotally mounted on the underside of the pressure rails, on which springs act and which carry the pressure rollers.

Als ebenfalls sehr vorteilhaft hat es sich erwiesen, wenn gemäß der Erfindung der Formstempel in einer Schiene geführt ist, welche den Abstand des Formstempels von der Bodenplatte der Unterform zwangsweise einstellt.It has also proven to be very advantageous if, according to the invention, the form stamp is guided in a rail, which forcibly adjusts the distance of the form stamp from the bottom plate of the lower mold.

Durch diese Ausgestaltung kann auf weitere Steuerorgane für den Formstempel verzichtet werden.This configuration makes it possible to dispense with further control elements for the form stamp.

In der Zeichnung ist die Erfindung anhand mehrerer Ausführungsbeispiele veranschaulicht. Dabei zeigen:

  • Fig.1 eine schematisierte Seitenansicht einer Maschine zum Aufrichten einer Faltschachtel mit zwei Transportketten für einen Formstempel und einer U-förmigen Unterform sowie mit zwei Schließrädern,
  • Fig.2 eine Draufsicht auf die Maschine nach Fig.1 mit sichtbarer Rollenstrecke,
  • Fig.3 eine schematisierte Seitenansicht einer weiteren Maschine zum Aufrichten einer dichten Faltschachtel,
  • Fig.4 eine Ansicht eines Kartonzuschnittes aus dem die Faltschachtel mit der Maschine gemäß Fig.1 u. 2 aufgerichtet werden soll,
  • Fig.5 eine Ansicht eines Kartonzuschnittes zum Herstellen eines dichten Unterteils einer Faltschachtel mit der Maschine gemäß Fig.3
  • Fig.6 ein aus dem Zuschnitt nach Fig.5 aufgerichtetes Faltschachtel-Unterteil und
  • Fig.7 u.8 vergrößert dargestellte Details der Rollenstrecke.
The invention is illustrated in the drawing using several exemplary embodiments. Show:
  • 1 is a schematic side view of a machine for erecting a folding box with two transport chains for a die and a U-shaped lower mold and with two closing wheels,
  • 2 shows a plan view of the machine according to FIG. 1 with a visible roller path,
  • 3 shows a schematic side view of a further machine for erecting a tight folding box,
  • 4 shows a view of a cardboard blank from which the folding box with the machine according to FIG. 2 to be erected,
  • 5 shows a view of a cardboard blank for producing a tight lower part of a folding box with the machine according to FIG
  • 6 shows a lower part of the folding box erected from the blank according to FIG. 5 and
  • Fig. 7 and 8 enlarged details of the roller track.

Mit 1 ist eine Maschine zum Aufrichten einer Faltschachtel bezeichnet, die zwei Transportketten 2 und 3 aufweist. An der unteren Transportkette 2 ist eine Vielzahl von U-förmigen Unterformen 4 befestigt, die mit dieser Transportkette umlaufen und jeweils eine Bodenplatte 5 und je einen vorderen und hinteren Schenkel 6,7 aufweisen. Jeder dieser U-förmigen Unterformen 4 ist ein Formstempel 8 zugeordnet, der an der oberen Transportkette 3 befestigt ist und mit dieser umläuft. Innerhalb der oberen Transportkette 3 ist eine Führungsschiene vorgesehen, welche den Formstempel in seiner Höhenlage zwangsführt und in Eingriff mit der U-förmigen Unterform bringt.1 with a machine for erecting a folding box is referred to, which has two transport chains 2 and 3. A plurality of U-shaped lower molds 4 are fastened to the lower transport chain 2 and run around this transport chain and each have a base plate 5 and a front and rear leg 6, 7. Each of these U-shaped lower molds 4 is assigned a die 8, which is attached to the upper conveyor chain 3 and rotates with it. A guide rail is provided within the upper transport chain 3, which forcibly guides the molding die in its vertical position and brings it into engagement with the U-shaped lower mold.

Zwischen Unterform 4 und Formstempel 8 wird ein Kartonzuschnitt 10 eingelegt, wie er in Fig.4 dargestellt ist. Dieser Kartonzuschnitt weist einen Boden 11 auf, an dem über Faltlinien 12 und 13 je eine Seitenwand 14 bzw. 15 angelenkt ist. Jede dieser beiden Seitenwände 14,15 trägt seitlich je eine Staubklappe 16,17 bzw. 18,19, die über Faltlinien 20 und 21 an den beiden Seitenwänden angelenkt sind. Über diese Faltlinien 20,21 sind auch eine Vorderwand 23 und eine Rückwand 24 am Boden 11 angelenkt. Die Rückwand 24 trägt über eine weitere Faltlinie 25 eine Deckklappe 26, welche Seitenwandlappen 27,28 sowie einen Vorderwandlappen 29 aufweist, welche im fertig aufgerichteten Zustand der Faltschachtel die beiden Seitenwände 14,15 und die Vorderwand 23 überdekken.A cardboard blank 10, as shown in FIG. 4, is inserted between the lower mold 4 and the die 8. This cardboard blank has a bottom 11, on each of which a side wall 14 or 15 is articulated via fold lines 12 and 13. Each of these two side walls 14, 15 laterally carries a dust flap 16, 17 and 18, 19, respectively, which are hinged to the two side walls via folding lines 20 and 21. A front wall 23 and a rear wall 24 are also articulated on the floor 11 via these folding lines 20, 21. The rear wall 24 carries, via a further folding line 25, a cover flap 26 which has side wall flaps 27, 28 and a front wall flap 29 which cover the two side walls 14, 15 and the front wall 23 in the fully erected state of the folding box.

Seitlich neben der unteren Transportkette 2 sind zwei Schließräder 30 angeordnet, die sich gegenläufig drehen und mit einer Umfangsaussparung 32 versehen sind. Darüberhinaus sind die beiden Schließräder mit je einer Umfangsnut 33 ausgerüstet, in welche eine nachfolgende Faltleiste 34 mit ihrem einen Ende eingreift. Seitlich neben dieser Faltleiste 34 ist eine Heißluftdüse 35 angeordnet, welche ihre Austrittsöffnungen 36 auf der von der Faltleiste 34 abgewandten Seite aufweist. Auf der von dieser Faltleiste 34 abgekehrten Seite der Heißluftdüse 35 ist eine weitere Faltleiste 37 angeordnet, welche von unterhalb der Schließräder 30 bis wenigstens in die Höhe der ersten Faltleiste 34 verläuft und von einer Andrückschiene 38 abgelöst wird.To the side of the lower transport chain 2 there are two locking wheels 30 which rotate in opposite directions and are provided with a circumferential recess 32. In addition, the two closing wheels are each equipped with a circumferential groove 33, in which a subsequent folding strip 34 engages with one end. A hot air nozzle 35 is arranged laterally next to this folding strip 34 and has its outlet openings 36 on the side facing away from the folding strip 34. On the side of the hot air nozzle 35 facing away from this folding strip 34, a further folding strip 37 is arranged, which extends from below the closing wheels 30 to at least the height of the first folding strip 34 and is detached from a pressure rail 38.

Wie aus Fig.2 hervorgeht, sind nicht nur die Schließräder 30 sondern auch die Faltleisten 34 und 37, die Heißluftdüsen 35 und die Andrückschienen 38 zu beiden Seiten der Transportketten 2 und 3 angeordnet.As can be seen from FIG. 2, not only the closing wheels 30 but also the folding strips 34 and 37, the hot air nozzles 35 and the pressure rails 38 are arranged on both sides of the transport chains 2 and 3.

Die Andrückschiene 38 ist mit drehbar gelagerten Andrückrollen 39 versehen, die in entsprechende Aussparungen 40 der Andrückschiene eingelassen sind und auf an der Unterseite der Schiene gelagerten Hebeln 41 sitzen. An den Hebeln greifen nicht sichtbare Federn an, welche diese und damit die Rollen nach außen pressen.The pressure rail 38 is provided with rotatably mounted pressure rollers 39 which are embedded in corresponding recesses 40 in the pressure rail and are seated on levers 41 mounted on the underside of the rail. Invisible springs attack the levers, which press them and thus the rollers outwards.

Beim Herabfahren des Formstempels drückt dieser den Boden 11 des Kartonzuschnittes 10 nach Fig.4 in die U-förmige Unterform 4 ein, wobei die beiden Seitenwände 14 und 15 seitlich hochstehen und zwischen den beiden Schenkeln 6,7 und dem Formstempel eingespannt sind. Die Staubklappen 16,17,18,19 stehen dabei seitlich aus der Unterform 4 heraus. Sobald die Unterform zu den Schließrädern 30 gelangt, wird die beiden vorderen Staubklappen17 und 19 von diesem an den Formstempel 8 angelegt und in dieser Lage von den Faltleisten 34 gehalten. Die beiden hinteren Staubklappen 16 und 18 gelangen in die Aussparung 32 der beiden Schließräder 30 und werden durch deren Drehbewegung ebenfalls an den Formstempel angelegt und dann durch die Faltleisten 34 in dieser Stellung gehalten. Die Faltleisten 37 heben die Vorderwand 23 und die Rückwand 24 etwas an, so daß die aus den Heißluftdüsen 35 bzw. deren Austrittsdüsen 36 kommende Heißluft auf die Innenfläche dieser beiden mit siegelfähigem Kunststoff beschichteten Wände gelangt. Im weiteren Verlauf drücken die beiden Faltleisten 37 diese beiden Wände bis zur Anlage an den Staubklappen nach oben, wobei der eigentliche Anpreßvorgang von den anschließenden Andrückschienen 38 bzw. deren Andrückrollen 39 übernommen wird, die sich unmittelbar an die Faltleisten 37 anschließen. Infolge der federnden Anpressung dieser Andrückrollen können auch geringfügige Unterschiede in der Materialdicke ausgeglichen werden.When the die is lowered, it presses the bottom 11 of the carton blank 10 according to FIG. 4 into the U-shaped lower mold 4, the two side walls 14 and 15 being raised laterally stand and are clamped between the two legs 6.7 and the die. The dust flaps 16, 17, 18, 19 protrude laterally from the lower mold 4. As soon as the lower mold reaches the closing wheels 30, the two front dust flaps 17 and 19 are placed by the latter on the die 8 and held in this position by the folding strips 34. The two rear dust flaps 16 and 18 get into the recess 32 of the two locking wheels 30 and are also applied to the form stamp by their rotational movement and then held in this position by the folding strips 34. The folding strips 37 raise the front wall 23 and the rear wall 24 somewhat, so that the hot air coming from the hot air nozzles 35 or their outlet nozzles 36 reaches the inner surface of these two walls coated with sealable plastic. In the further course, the two folding strips 37 press these two walls up until they come into contact with the dust flaps, the actual pressing process being carried out by the subsequent pressure rails 38 or their pressure rollers 39, which directly adjoin the folding strips 37. Due to the resilient pressure of these pressure rollers, even slight differences in material thickness can be compensated for.

Die Maschine 50 nach Fig.3 entspricht weitgehend der vorstehend beschriebenen Maschine 1, lediglich sind die Heißluftdüsen 35 vor den Schließrädern 30 angeordnet und vor den Heißluftdüsen sind noch beiderseits der Transportketten 2,3 je eine Schiene 51 zum Einfalten der Vorder- und Rückwand des in Fig.5 dargestellten Zuschnittes 61 bzw. des daraus aufgerichteten Faltschachtel-Unterteiles 80 (Fig.6).The machine 50 according to FIG. 3 largely corresponds to the machine 1 described above, only the hot air nozzles 35 are arranged in front of the closing wheels 30 and in front of the hot air nozzles there are still rails 51 on both sides of the transport chains 2, 3 for folding in the front and rear walls of the in 5 shown blank 61 or the folding box lower part 80 erected therefrom (FIG. 6).

Der in Fig.5 dargestellte flachliegende Kartonzuschnitt 61, weist einen Bodenabschnitt 62 auf, an dem über Faltlinien 63 und 64 je ein Seitenwandabschnitt 65 bzw. 66 angelenkt ist. Darüber hinaus sind an dem Bodenabschnitt zwei Stirnwandabschnitte 67 und 68 angeformt, welche über die Faltlinien 63 und 64 auch mit den Seitenwandabschnitten 65 und 66 verbunden sind. Von den beiden Faltlinien 63 und 64 gehen je zwei weitere Faltlinien 69, 70 bzw. 71, 72 aus, durch welche Zwickelecken 73,74,75,76 zwischen den Seitenwandabschnitten und den Stirnwandabschnitten abgeteilt sind. Diese Zwickelecken 73 bis 76 und der durch die Linie 77 bzw. 78 abgeteilte Abschnitt des jeweiligen Stirnwandabschnittes 67 bzw. 68 ist auf der Außen- und der Innenseite mit einer siegelbaren Kunststoffschicht versehen, was in Fig.5 durch eine Schraffierung dargestellt ist. Zum Aufrichten dieses Kartonzuschnittes 61 in die in Fig.6 dargestellte becherförmige Schale 80, werden zuerst die beiden Seitenwandabschnitte 65 und 66 um die Faltlinien 63 und 64 durch Einpressen in die U-förmige Unterform nach oben gefaltet; dann werden die beiden Stirnwandabschnitte 67 und 68 durch die Faltschiene 51 nach oben gebogen. Nach dem Aufheizen durch die Heiluftdüsen 35 werden dann die Zwickelecken sowie die Endabschnitte der Seitenwandabschnitte durch die Schließräder 30 außen aufgefaltet, worauf alle drei Lagen durch die Andrückschienen 38 miteinander verpreßt und versiegelt werden.The flat-lying cardboard blank 61 shown in FIG. 5 has a bottom section 62, to each of which a side wall section 65 or 66 is articulated via fold lines 63 and 64. In addition, two end wall sections 67 and 68 are integrally formed on the bottom section, which are also connected to the side wall sections 65 and 66 via fold lines 63 and 64. Two further folding lines 69, 70 and 71, 72 each start from the two folding lines 63 and 64, through which gusset corners 73, 74, 75, 76 are divided between the side wall sections and the end wall sections. This gusset corners 73 to 76 and the section of the respective end wall section 67 or 68 divided by the line 77 or 78 is provided on the outside and the inside with a sealable plastic layer, which is shown in FIG. 5 by hatching. To erect this cardboard blank 61 into the cup-shaped tray 80 shown in FIG. 6, the two side wall sections 65 and 66 are first folded upward about the fold lines 63 and 64 by pressing into the U-shaped lower mold; then the two end wall sections 67 and 68 are bent upwards by the folding rail 51. After heating by the healing air nozzles 35, the gusset corners and the end sections of the side wall sections are then unfolded by the closing wheels 30, whereupon all three layers are pressed together and sealed by the pressure rails 38.

Claims (9)

1. Verfahren zum Aufrichten einer Faltschachtel aus einem einteiligen Kartonzuschnitt, der eine Bodenfläche, daran über Faltlinien angelenkte Seitenwände sowie eine Vorder- und eine Rückwand aufweist, wobei an den Seitenwänden Klappen angeformt sind die in den Bereich der Vorder- und Rückwand gefaltet werden und der wenigstens abschnittweise mit einem siegelfähigen Kunststoff beschichtet ist, dadurch gekennzeichnet, daß zuerst die beiden Seitenwände durch Eindrücken des Kartonzuschnittes in eine U-förmige Unterform aufgerichtet werden, daß über sich drehende Mitnehmer die Klappen eingefaltet werden, und daß die Rückwand und die Vorderwand soweit erwärmt werden, daß die Kunststoffbeschichtung siegelfähig wird, worauf die Rückwand und die Vorderwand sowie die Klappen gegeneinander gepreßt und mit einander versiegelt werden.1.Method for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, flaps being formed on the side walls and being folded into the area of the front and rear walls and the is at least partially coated with a sealable plastic, characterized in that first the two side walls are erected by pressing the cardboard blank into a U-shaped lower mold, that the flaps are folded in via rotating drivers, and that the rear wall and the front wall are heated so far that the plastic coating becomes sealable, whereupon the rear wall and the front wall and the flaps are pressed against one another and sealed to one another. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß nach dem Aufrichten der beiden Seitenwände über sich drehende Mitnehmer zuerst die als Staubklappen ausgebildeten Klappen eingefaltet werden und dann die Rückwand und die Vorderwand gegen diese Staubklappen gepreßt und dort angesiegelt werden2. The method according to claim 1, characterized in that after the erection of the two side walls via rotating drivers, the flaps designed as dust flaps are first folded in and then the rear wall and the front wall are pressed against these dust flaps and sealed there 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß nach dem Aufrichten der beiden Seitenwände zuerst die Vorderwand und die Rückwand aufgefaltet werden und dann die sowohl mit den Seitenwänden als auch mit den anderen beiden Wänden verbundenen Klappen unter Bildung von Zwickeln auf diese beiden Wände aufgefaltet und mit den Zwickeln und den Wänden verpreßt und versiegelt werden.3. The method according to claim 1, characterized in that after erecting the two side walls, the front wall and the rear wall are first unfolded and then the flaps connected to both the side walls and the other two walls are unfolded to form gussets on these two walls and pressed and sealed with the gussets and walls. 4. Maschine zum Aufrichten einer Faltschachtel aus einem einteiligen Kartonzuschnitt, der eine Bodenfläche, daran über Faltlinien angelenkte Seitenwände sowie eine Vorder- und eine Rückwand aufweist, zwischen denen und den Seitenwänden Staubklappen vorgesehen sind und der wenigstens auf seiner Schachtel-Innenseite mit einem siegelfähigen Kunststoff beschichtet ist, insbesondere nach dem Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, daß eine an einer Transportkette(2) befestigte U-förmige Unterform(4) vorgesehen ist, die eine Bodenplatte(5) und je einen vorderen und hinteren Schenkel(6,7) aufweist, und daß dieser Unterform(4) ein an einer weiteren Kette(3) befestigter Formstempel(8) zugeordnet ist, daß beiderseits dieser Transportketten mit je einer Aussparung(32) versehene Schließräder(30) vorgesehen sind, die zum Einfalten der Staubklappen(16,17,18,19) dienen, an die sich Halteschienen(34) für die eingefalteten Staubklappen anschließen, daß im Anschluß an die Schließräder(30) beiderseits je eine Heißluftdüse(35) vorgesehen ist, deren Austrittsöffnungen(36) gegen die Innenseite der Vorder- bzw. der Rückwand(23,24) gerichtet sind, und daß hinter den Heißluftdüsen(35) Andrückschienen(38) zum Anlegen von Vorder-und Rückwand an die Staubklappen und dem gegenseitigen Verpressen vorgesehen sind.4. Machine for erecting a folding box from a one-piece cardboard blank that has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, between which and the side walls dust flaps are provided and which is coated at least on its inside of the box with a sealable plastic, in particular according to the method according to claim 2, characterized in that a U-shaped lower mold (4) fastened to a transport chain (2) is provided, which has a base plate (5 ) and each have a front and rear leg (6, 7), and that this lower mold (4) is assigned a stamp (8) attached to a further chain (3), that on both sides of these transport chains each have a recess (32) Locking wheels (30) are provided, which are used to fold in the dust flaps (16, 17, 18, 19), which are followed by holding rails (34) for the folded-in dust flaps, that in each case a hot air nozzle ( 35) is provided, the outlet openings (36) of which are directed toward the inside of the front or rear wall (23, 24), and that behind the hot air nozzles (35), pressure rails (38) for applying front and back kwand on the dust flaps and the mutual pressing are provided. 5. Maschine zum Aufrichten einer Faltschachtel aus einem einteiligen Kartonzuschnitt, der eine Bodenfläche, daran über Faltlinien angelenkte Seitenwände sowie eine Vorder- und eine Rückwand aufweist, wobei an den beiden Seitenwänden Klappen angeformt sind, die unter Bildung von Zwickeln auch mit den anderen beiden Wänden verbunden sind, insbesondere zur Durchführung des Verfahrens nach Anspruch 3, dadurch gekennzeichnet, daß eine an einer Transportkette(2) befestigte U-förmige Unterform(4) vorgesehen ist, die eine Bodenplatte(5) und je einen vorderen und hinteren Schenkel(6,7) aufweist, und daß dieser Unterform(4) ein an einer weiteren Kette(3) befestigter Formstempel(8) zugeordnet ist, daß beiderseits dieser Transportketten(2,3) Schienen (51) zum Einfalten der Vorder- und Rückwand vorgesehen sind, an welche sich mit einer Aussparung(32) versehene Schließräder-(30) anschließen, die zum Einfalten der Klappen dienen, wobei unmittelbar vor den Schließrädern Heißluftdüsen(35) vorgesehen sind, welche zum Erwärmen der Außenseite der Vorder- bzw. Rückwand sowie der Zwickel und der Klappen dienen, und daß im Anschluß an die Schließräder Andrückschienen(38) zum Verpressen der Klappen mit den Zwickeln und der Vorder- und Rückwand angeordnet sind.5.Machine for erecting a folding box from a one-piece cardboard blank, which has a bottom surface, side walls articulated thereon via folding lines and a front and a rear wall, flaps being formed on the two side walls, which also form gussets with the other two walls are connected, in particular for carrying out the method according to claim 3, characterized in that a U-shaped lower mold (4) fastened to a transport chain (2) is provided, which has a base plate (5) and a respective front and rear leg (6, 7), and that this lower mold (4) is assigned a stamp (8) attached to a further chain (3), that rails (51) are provided on both sides of these transport chains (2, 3) for folding in the front and rear walls, to which there are provided a recess (32) with closing wheels (30) which serve to fold in the flaps, with a hot air nozzle immediately in front of the closing wheels n (35) are provided, which are used to heat the outside of the front or rear wall and the gusset and the flaps, and that in connection with the closing wheels pressure rails (38) for pressing the flaps with the gussets and the front and rear walls are arranged. 6. Maschine nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die beiden Schließräder(30) mit einer Umfangsrille(33) versehen sind, die vorzugsweise bis zum Grund der Aussparung(32) reicht und in welche die Halteschienen(34) einzugreifen vermögen.6. Machine according to claim 4 or 5, characterized in that the two closing wheels (30) are provided with a circumferential groove (33) which preferably extends to the bottom of the recess (32) and in which the holding rails (34) are able to engage. 7. Maschine nach Anspruch 4, 5 od. 6, dadurch gekennzeichnet, daß die Andrückschienen-(38) mit Aussparungen (40) versehen sind, in welchen Andrückrollen(39) angeordnet, die federelastisch gelagert sind.7. Machine according to claim 4, 5 or 6, characterized in that the pressure rail (38) are provided with recesses (40) in which pressure rollers (39) are arranged, which are spring-mounted. 8. Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an der Unterseite der Andrückschienen(38) Hebel-(41) schwenkbar gelagert sind, an denen Federn angreifen und welche die Andrückrollen-(39) tragen.8. Machine according to one of the preceding claims, characterized in that on the underside of the pressure rails (38) lever (41) are pivotally mounted, on which springs engage and which carry the pressure rollers (39). 9. Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Formstempel(8) in einer Schiene geführt ist, welche den Abstand des Formstempels von der Bodenplatte(5) der Unterform(4) zwangsweise einstellt.9. Machine according to one of the preceding claims, characterized in that the form stamp (8) is guided in a rail which forcibly adjusts the distance of the form stamp from the base plate (5) of the lower mold (4).
EP91113396A 1990-08-30 1991-08-09 Method and machine for erecting a foldable box Expired - Lifetime EP0472981B1 (en)

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DE4027395A DE4027395A1 (en) 1990-08-30 1990-08-30 METHOD AND MACHINE FOR UPRATING A FOLDING BOX
DE4027395 1990-08-30

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EP0472981B1 EP0472981B1 (en) 1995-07-19

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JP (1) JPH05154945A (en)
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GB2282561A (en) * 1993-10-09 1995-04-12 Bradman Lake Ltd A twin head feed erector
WO2011157960A1 (en) * 2010-06-18 2011-12-22 Sidel Participations Tool-holder module for shaping at least one cardboard cut-out
FR2961428A1 (en) * 2010-06-18 2011-12-23 Sidel Participations TOOL MODULE FOR FASTENING AT LEAST ONE CARDBOARD CUTTER

Also Published As

Publication number Publication date
ATE125200T1 (en) 1995-08-15
DE59106015D1 (en) 1995-08-24
GR3017283T3 (en) 1995-11-30
EP0472981B1 (en) 1995-07-19
US5269741A (en) 1993-12-14
JPH05154945A (en) 1993-06-22
ES2077123T3 (en) 1995-11-16
DK0472981T3 (en) 1995-11-06
DE4027395C2 (en) 1993-01-28
DE4027395A1 (en) 1992-04-02

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