EP0256332B1 - Revolver for packing machines - Google Patents

Revolver for packing machines Download PDF

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Publication number
EP0256332B1
EP0256332B1 EP87110517A EP87110517A EP0256332B1 EP 0256332 B1 EP0256332 B1 EP 0256332B1 EP 87110517 A EP87110517 A EP 87110517A EP 87110517 A EP87110517 A EP 87110517A EP 0256332 B1 EP0256332 B1 EP 0256332B1
Authority
EP
European Patent Office
Prior art keywords
turret
pockets
side walls
another
turrets
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.)
Expired - Lifetime
Application number
EP87110517A
Other languages
German (de)
French (fr)
Other versions
EP0256332A3 (en
EP0256332A2 (en
Inventor
Heinz Focke
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co KG
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Publication date
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Publication of EP0256332A2 publication Critical patent/EP0256332A2/en
Publication of EP0256332A3 publication Critical patent/EP0256332A3/en
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Publication of EP0256332B1 publication Critical patent/EP0256332B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/28—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a curved path, e.g. on rotary tables or turrets

Definitions

  • the invention relates to a revolver with pockets arranged along the circumference for receiving objects, in particular packs, the pockets being delimited by at least two approximately parallel side walls which can be moved relative to one another in order to enlarge or reduce the cross section of the pockets.
  • Revolvers are rotatingly driven organs for the transport of packages or package contents in connection with packaging machines.
  • a revolver is provided with pockets on the outer circumference, each of which contains the contents of the pack or the packs, which may have already been partially completed.
  • the packaging manipulations are carried out on these, in particular folding processes as well as welding or gluing of blanks.
  • the centrifugal forces can lead to the undesired relative displacements within the pockets. This is especially true if the package contents, e.g. B. a single item, with considerable play in the pack is included.
  • the invention is based on the object of developing and developing a revolver of the type described in the introduction such that displacements of packs and other objects within the pockets of the revolver are avoided even at high rotational speeds.
  • the revolver according to the invention is characterized in that the side walls are each connected to different, independently movable partial revolvers.
  • the partial revolvers are preferably rotatable relative to one another about a common axis.
  • An actuator can be controlled so that the partial revolvers - and thus the side walls of the pockets - perform a short relative stroke to one another during the standstill phases, so that the cross-section of the pockets is slightly expanded or narrowed.
  • the objects or packs can be inserted or ejected into them.
  • the cross section of the pockets is narrowed so that the contents of the pockets are fixed under clamping action. This prevents the objects or packs from being able to be moved in the pockets open on the radially outer side as a result of centrifugal forces.
  • the turret 10 shown is used in conjunction with or as part of a packaging machine.
  • it is an example of the wrapping of elongated packs 11 in an outer wrapper 12 made of cellophane or plastic.
  • the pack 11 made of (thin) cardboard has been produced and filled in the area of other units of the packaging machine.
  • the content of the pack 11 is a solid, single object, namely a tube 13. This is accommodated with play in the pack 11, which is rectangular in cross section, so that the tube 13 can carry out relative movements within the pack 11.
  • tubular tabs 14 and 15 of the outer covering 12 are folded over one after the other against the associated radially outward-facing side surface 16 of the pack 11 and finally connected to one another by sealing. Furthermore, end folds can be carried out by folding members, which are not shown in the drawings.
  • the revolver 10 has a plurality of, in the present case six pockets 17. These are delimited in the circumferential direction of the turret 10 by side walls 18 and 19. The radially outer side of the pockets is open, so that the packs 11 can be inserted and pushed out of a (horizontally directed) pocket 17 by radial displacement.
  • the pockets 17 are further delimited by end walls 20 and 21 acting in the axial direction.
  • the radially inner end of the pockets 17 is formed by a bottom wall 22.
  • At least the side walls 18 and 19 can be moved relative to one another, in the sense of expanding or reducing the free cross section of the pockets 17.
  • the packs 11 can be inserted without problems in the region of an insertion station 23 into a horizontally directed pocket 17 , namely together with the U-shaped outer wrapping 12 surrounding the pack 11.
  • the packs 11 finished with respect to the outer wrapper 12 are pushed out again in the region of an ejection station 24 from a likewise horizontally oriented pocket 17 in the radial direction.
  • the clockwise movement of the revolver 10 takes place in the example shown in the counterclockwise direction, so that the (two) pockets 17 filled with packs 11 are directed upwards in the region between the insertion station 23 and the extension station 24.
  • a cross-sectional expansion of the pockets 17 by moving the side walls 18, 19 apart therefore does not result in the packs 11 being able to slide out of the pockets 17 pointing upwards.
  • the turret 10 consists of several, namely here of two partial turrets 25 and 26. These are each assigned one of the side walls 18 and 19. With relative adjustment the partial revolvers 25, 26 to one another are therefore also adjusted the side walls 18, 19 as part of one or the other partial revolvers 25, 26.
  • the partial revolvers 25 and 26 together form the revolver 10 and can be rotated as a unit.
  • the partial revolvers 25 and 26 can be rotated about a common axis.
  • the partial turret 26 is firmly connected to a drive shaft or a shaft journal 27.
  • the partial turret 25, however, is rotatably mounted on the shaft journal 27.
  • the partial revolvers 25 and 26 in the present case each consist of approximately radially directed revolver arms 28, 29 and 30, 31. At the ends of these arms 28, 29 and 30, 31, the side walls 18 and 19 are arranged, but not over the Full length of the revolver 10 continuously, but only as a short or narrow leg.
  • the packs 11 are therefore not covered over their entire length within a pocket 17 by side walls 18, 19 and the bottom wall 22, but only at the ends of the elongated packs 11.
  • Each pocket 17 accordingly consists of two end pockets for receiving the end regions of the pack 11 This is exposed in the middle area between arms 28 or 29 and 30 or 31.
  • the bottom wall 22 in the area of the turret arms 30 and 31 is dimensioned in the axial direction as well as the side walls 19 arranged on the same turret arms 30, 31.
  • the turret arms 28 and 29 assigned to the side walls 18 of a pocket 17 are fastened at an axial distance from one another in each case to a collar 32, 33 on the shaft journal 27 or at the end of the latter.
  • the partial turret 25 is mounted on the shaft journal 27 between the collars 32, 33, specifically with a continuous rotating sleeve 34.
  • the partial revolvers 25, 26 are adjustable relative to one another along an angle 36 by means of an actuating gear 35.
  • the Actuator 35 consists of a toggle lever arrangement with tabs 37 and 38. These are each articulated or pivotally connected to the sides of adjacent turret arms 28 on the one hand and 30 on the other.
  • the two tabs 37 and 38 are brought together in a common joint 39.
  • a feeler roller 40 is mounted in this.
  • the actuating gear 35 consisting of the tabs 37 and 38 is loaded in the direction of moving the side walls 18 and 19 of the pockets 17 together, that is to say in the direction of a reduction in the pocket cross section.
  • a tension spring 41 anchored to the turret 10 at the other end acts on the knee joint, namely in the common joint 39.
  • the tension spring 41 is only effective. This means that a force reducing the cross section of the pockets 17 is exerted on the partial revolvers 25, 26. The packs 11 are held in the pockets during this phase under clamping action.
  • the partial revolvers 25, 26 move relative to each other in the sense of a movement of the side walls 18, 19 apart.
  • the knee joint is acted upon against the force of the tension spring 41 in the sense of a reduction in the angular position between the tabs 37 and 38 .
  • An actuator acts on the feeler roller 40 of the tabs 37 and 38 in the sense of a radially outward movement.
  • the adjustment is effected by a cam 42 or 43.
  • the feeler roller 40 runs on the outer circumference of the cam plate 42 when the tabs 37, 38 are adjusted.
  • the cams 42, 43 are arranged concentrically with the turret 10, so that during the (cyclical) rotary movement of the turret 10 the feeler roller 40 can run outside the cam cams 44 on the cam 42 or in the cam groove 45 of the cam 43.
  • the cam plate 42 or 43 is rotatably mounted with a guide sleeve 46 on a fixed hollow pin 47. This in turn is mounted on a load-bearing element of the packaging machine, in the exemplary embodiment in FIG. 4 on a gear housing 48.
  • the shaft journal 27, the drive of which is located in the gear housing 48, passes through the hollow journal 46.
  • the crank disk 42 or 43 only executes a rotary movement along the angle 36 during the standstill phase of the turret 10, namely to adjust the turret arms 28 to 31 relative to one another.
  • This reciprocating rotary movement is generated by a push rod 49, which is articulated to the cam plate 42 or 43.
  • the push rod 49 is suitably driven, e.g. by a pressure medium cylinder (not shown).
  • the packs 11 are introduced via a horizontal pack track 50 into the pocket 17 facing them together with the outer wrapper 12.
  • the lower or rearward tubular flap 15 is folded over against the outer side surface 16 of the pack 11 by a folding finger 52.
  • the upper or front tubular tab 14 is also folded over against the side surface 16, specifically by means of a stationary, curved guide wall 53 which extends lengthways a pitch circle outside the range of motion of the turret 10 extends.
  • the overlapping tube tabs 14, 15 are sealed or pre-sealed by a first sealing member 54.
  • the tube tabs 14, 15 are sealed (final sealed) by a further, second sealing element 55.
  • the finished package 11 is pushed out of the horizontally lying pocket 17 into a likewise horizontally directed discharge path 56.
  • a pusher 57 comes into effect, which is arranged so that it can be moved back and forth between the turret arms 28 ... 31.
  • the movement phase of the folding turret is preferably 120 ° of a work cycle.
  • the entire standstill phase is 240 °.
  • the standstill phase is expediently divided into two partial phases of 120 ° each.
  • a first standstill phase of 120 ° the tubular flaps 14 and 15 are sealed by the sealing members 54 and 55.
  • the side walls 18, 19 of the pockets 17 remain in the closed or clamped position, that is to say in the narrow position.
  • the side walls 18, 19 are moved apart, that is to say the pockets 17 are opened.
  • the packs 11 can now be pushed in and out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Package Closures (AREA)
  • Specific Conveyance Elements (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Description

Die Erfindung betrifft einen Revolver mit längs des Umfangs angeordneten Taschen zur Aufnahme von Gegenständen, insbesondere Packungen, wobei die Taschen durch wenigstens zwei etwa parallele und zur Vergrößerung oder Verkleinerung des Querschnitts der Taschen relativ zueinander bewegbare Seitenwände begrenzt sind.The invention relates to a revolver with pockets arranged along the circumference for receiving objects, in particular packs, the pockets being delimited by at least two approximately parallel side walls which can be moved relative to one another in order to enlarge or reduce the cross section of the pockets.

Revolver sind drehend angetriebene Organe für den Transport von Packungen bzw. Packungsinhalt im Zusammenhang mit Verpackungsmaschinen. Am äußeren Umfang ist ein Revolver mit Taschen versehen, in denen jeweils der Packungsinhalt bzw. die gegebenenfalls bereits teilweise fertiggestellten Packungen Aufnahme finden. Während des Transports der Gegenstände (mit Verpackungs-Zuschnitt) bzw. der Verpackungen werden Manipulationen an diesen ausgeführt, insbesondere Faltvorgänge sowie Schweißungen oder Verklebungen von Zuschnitten.Revolvers are rotatingly driven organs for the transport of packages or package contents in connection with packaging machines. A revolver is provided with pockets on the outer circumference, each of which contains the contents of the pack or the packs, which may have already been partially completed. During the transport of the objects (with packaging cut) or the packaging manipulations are carried out on these, in particular folding processes as well as welding or gluing of blanks.

Bei Einsatz in hochleistungsfähigen Verpackungsmaschinen sind hohe Drehgeschwindigkeiten der Faltrevolver erforderlich, wenn die kurzen Taktzeiten erreicht werden sollen. Vor allem bei schrittweise drehenden Faltrevolvern ergeben sich notwendigerweise hohe Drehgeschwindigkeiten, weil die Stillstandsphase für die Durchführung der erforderlichen Maßnahmen an den Packungen möglichst kurz sein soll. Die hohen Drehgeschwindigkeiten können zu unerwünschten Verschiebungen der Packungen in den Taschen führen. Dies gilt insbesondere für Revolver, bei denen die Taschen auf der radial außenliegenden Seite offen sind, um die Gegenstände und Packungen durch Radialbewegung in die Taschen ein bzw. aus diesen Ausschieben zu können. Da die Abmessungen der Taschen, nämlich die Abstände der diese begrenzenden Seitenwände voneinander, auf die Abmessungen der Packungen bzw. des Packungsinhalts abgestellt sind, können die Zentrifugalkräfte zu den unerwünschten Relativverschiebungen innerhalb der Taschen führen. Dies gilt vor allem dann, wenn der Packungsinhalt, z. B. ein einzelner Gegenstand, mit erheblichem Spiel in der Packung Aufnahme findet.When used in high-performance packaging machines, high revolving speeds of the folding turret are required if the short cycle times are to be achieved. Especially with step-by-step folding turrets, there are necessarily high speeds of rotation because the standstill phase for carrying out the necessary measures on the packs should be as short as possible. The high rotational speeds can lead to undesirable displacements of the packs in the pockets. This applies in particular to revolvers in which the pockets on the radially outer side are open in order to be able to push the objects and packs into and out of the pockets by radial movement. Since the dimensions of the pockets, namely the distances between the side walls delimiting them, are based on the dimensions of the packs or of the pack contents, the centrifugal forces can lead to the undesired relative displacements within the pockets. This is especially true if the package contents, e.g. B. a single item, with considerable play in the pack is included.

Aus der US-A-2 633 279 ist ein Revolver der eingangs beschriebenen Art bekannt, bei dem die Seitenwände relativ zueinander bewegbar sind. Dabei ist jeweils eine Seitenwand einseitig angelenkt und über einen Hebelmechanismus gegenüber der jeweils anderen Seitenwand verschwenkbar. Bei dieser bekannten Vorrichtung sind eine Vielzahl von Gelenken und Rückstellmechanismen erforderlich.From US-A-2 633 279 a revolver of the type described in the opening paragraph is known in which the side walls are movable relative to one another. Each side wall is articulated on one side and can be pivoted with respect to the other side wall by means of a lever mechanism. In this known device, a large number of joints and return mechanisms are required.

Der Erfindung liegt die Aufgabe zugrunde, einen Revolver der eingangs beschriebenen Art so auszubilden und weiterzuentwickeln, daß auch bei hohen Drehgeschwindigkeiten Verschiebungen von Packungen und anderen Gegenständen innerhalb der Taschen des Revolvers vermieden werden.The invention is based on the object of developing and developing a revolver of the type described in the introduction such that displacements of packs and other objects within the pockets of the revolver are avoided even at high rotational speeds.

Zur Lösung dieser Aufgabe ist der erfindungsgemäße Revolver dadurch gekennzeichnet, daß die Seitenwände je mit verschiedenen, unabhängig voneinander bewegbaren Teilrevolvern verbunden sind.To achieve this object, the revolver according to the invention is characterized in that the side walls are each connected to different, independently movable partial revolvers.

Vorzugsweise sind die Teilrevolver gegeneinander um eine gemeinsame Achse verdrehbar.The partial revolvers are preferably rotatable relative to one another about a common axis.

Ein Stellgetriebe ist so steuerbar, daß während der Stillstandsphasen die Teilrevolver - und damit die Seitenwände der Taschen - einen kurzen Relativhub zueinander ausführen, so daß der Querschnitt der Taschen geringfügig erweitert bzw. verengt wird. In der Stellung bei vergrößertem Querschnitt der Taschen können die Gegenstände bzw. Packungen in diese eingeführt oder ausgestoßen werden. Während der Drehbewegung des Revolvers ist der Querschnitt der Taschen so verengt, daß der Inhalt derselben unter Klemmwirkung fixiert ist. Dadurch wird verhindert, daß die Gegenstände bzw. Packungen in den an der radial außenliegenden Seite offenen Taschen infolge von Zentrifugalkräften verschoben werden können.An actuator can be controlled so that the partial revolvers - and thus the side walls of the pockets - perform a short relative stroke to one another during the standstill phases, so that the cross-section of the pockets is slightly expanded or narrowed. In the position with an enlarged cross section of the pockets, the objects or packs can be inserted or ejected into them. During the rotating movement of the revolver, the cross section of the pockets is narrowed so that the contents of the pockets are fixed under clamping action. This prevents the objects or packs from being able to be moved in the pockets open on the radially outer side as a result of centrifugal forces.

Weitere Merkmale der Erfindung betreffen die Ausgestaltung der Teilrevolver bzw. der Taschen sowie das Getriebe für die Relativverstellung der Teilrevolver zueinander.Further features of the invention relate to the design of the partial turret or the pockets and the gear for the relative adjustment of the partial turret to one another.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert. Es zeigt:

Fig. 1
einen Faltrevolver in Seitenansicht in vereinfachter Darstellung,
Fig. 2
einen Horizontalschnitt längs der Schnittebene II-II der Fig. 1,
Fig. 3
eine Seitenansicht des Faltrevolvers gemäß Fig. 1 in verkleinertem Maßstab mit Stellgetriebe für Teilrevolver,
Fig. 4
einen Horizontalschnitt durch den Faltrevolver gemäß Fig. 3.
An embodiment of the invention is explained below with reference to the drawings. It shows:
Fig. 1
a folding turret in side view in a simplified representation,
Fig. 2
2 shows a horizontal section along the section plane II-II of FIG. 1,
Fig. 3
2 shows a side view of the folding turret according to FIG. 1 on a reduced scale with an actuating gear for the partial turret,
Fig. 4
3 shows a horizontal section through the folding turret according to FIG. 3.

Der gezeigte Revolver 10 kommt in Verbindung mit bzw. als Teil einer Verpackungsmaschine zum Einsatz. Im vorliegenden Falle geht es als Beispiel um die Einhüllung von langgestreckten Packungen 11 in eine Außenumhüllung 12 aus Zellglas oder Kunststoff. Die Packung 11 aus (dünnem) Karton ist im Bereich anderer Aggregate der Verpackungsmaschine hergestellt und befüllt worden. Der Inhalt der Packung 11 ist bei diesem Beispiel ein fester, einzelner Gegenstand, nämlich eine Tube 13. Diese findet mit Spiel Aufnahme in der im Querschnitt rechteckigen Packung 11, so daß die Tube 13 innerhalb der Packung 11 Relativbewegungen ausführen kann.The turret 10 shown is used in conjunction with or as part of a packaging machine. In the present case, it is an example of the wrapping of elongated packs 11 in an outer wrapper 12 made of cellophane or plastic. The pack 11 made of (thin) cardboard has been produced and filled in the area of other units of the packaging machine. In this example, the content of the pack 11 is a solid, single object, namely a tube 13. This is accommodated with play in the pack 11, which is rectangular in cross section, so that the tube 13 can carry out relative movements within the pack 11.

Im Bereich des Revolvers 10 werden Schlauchlappen 14 und 15 der Außenumhüllung 12 gegen die zugeordnete, radial nach außen weisende Seitenfläche 16 der Packung 11 nacheinander umgefaltet und schließlich durch Siegeln miteinander verbunden. Des weiteren können stirnseitige Faltungen durch Faltorgane ausgeführt werden, die in den Zeichnungen nicht dargestellt sind.In the area of the turret 10, tubular tabs 14 and 15 of the outer covering 12 are folded over one after the other against the associated radially outward-facing side surface 16 of the pack 11 and finally connected to one another by sealing. Furthermore, end folds can be carried out by folding members, which are not shown in the drawings.

Der Revolver 10 weist mehrere, im vorliegenden Falle sechs Taschen 17 auf. Diese werden in Umfangsrichtung des Revolvers 10 durch Seitenwände 18 und 19 begrenzt. Die radial außenliegende Seite der Taschen ist offen, so daß die Packungen 11 durch Radialverschiebung jeweils in eine (horizontal gerichtete) Tasche 17 eingeführt und aus dieser ausgeschoben werden können. Die Taschen 17 sind weiterhin durch in Axialrichtung wirkende Stirnwände 20 und 21 begrenzt. Der in Radialrichtung innenliegende Abschluß der Taschen 17 wird durch eine Bodenwand 22 gebildet.The revolver 10 has a plurality of, in the present case six pockets 17. These are delimited in the circumferential direction of the turret 10 by side walls 18 and 19. The radially outer side of the pockets is open, so that the packs 11 can be inserted and pushed out of a (horizontally directed) pocket 17 by radial displacement. The pockets 17 are further delimited by end walls 20 and 21 acting in the axial direction. The radially inner end of the pockets 17 is formed by a bottom wall 22.

Mindestens die Seitenwände 18 und 19 sind relativ zueinander bewegbar, und zwar im Sinne einer Erweiterung oder Verringerung des freien Querschnitts der Taschen 17. Bei auseinanderbewegten Seitenwänden 18, 19 können die Packungen 11 störungsfrei im Bereich einer Einschubstation 23 in eine horizontal gerichtete Tasche 17 eingeführt werden, und zwar zusammen mit der sich U-förmig um die Packung 11 herumlegenden Außenumhüllung 12. Auf der gegenüberliegenden Seite werden die in bezug auf die Außenumhüllung 12 fertiggestellten Packungen 11 im Bereich einer Ausschubstation 24 aus einer ebenfalls horizontal gerichteten Tasche 17 in Radialrichtung wieder ausgeschoben. Die taktweise Bewegung des Revolvers 10 erfolgt bei dem gezeigten Beispiel im Gegenuhrzeigersinn, so daß die mit Packungen 11 befüllten (zwei) Taschen 17 im Bereich zwischen Einschubstation 23 und Ausschubstation 24 nach oben gerichtet sind. Eine Querschnittserweiterung der Taschen 17 durch Auseinanderbewegen der Seitenwände 18, 19 hat demnach nicht zur Folge, daß die Packungen 11 aus den nach oben gerichteten Taschen 17 herausgleiten können.At least the side walls 18 and 19 can be moved relative to one another, in the sense of expanding or reducing the free cross section of the pockets 17. When the side walls 18, 19 are moved apart, the packs 11 can be inserted without problems in the region of an insertion station 23 into a horizontally directed pocket 17 , namely together with the U-shaped outer wrapping 12 surrounding the pack 11. On the opposite side, the packs 11 finished with respect to the outer wrapper 12 are pushed out again in the region of an ejection station 24 from a likewise horizontally oriented pocket 17 in the radial direction. The clockwise movement of the revolver 10 takes place in the example shown in the counterclockwise direction, so that the (two) pockets 17 filled with packs 11 are directed upwards in the region between the insertion station 23 and the extension station 24. A cross-sectional expansion of the pockets 17 by moving the side walls 18, 19 apart therefore does not result in the packs 11 being able to slide out of the pockets 17 pointing upwards.

Zur Durchführung der vorgenannten Veränderungen an den Taschen 17 besteht der Revolver 10 aus mehreren, nämlich hier aus zwei Teilrevolvern 25 und 26. Diesen ist je eine der Seitenwände 18 und 19 zugeordnet. Bei Relativverstellung der Teilrevolver 25, 26 zueinander werden mithin auch die Seitenwände 18, 19 als Teil des einen oder anderen Teilrevolvers 25, 26 mit verstellt. Die Teilrevolver 25 und 26 bilden zusammen den Revolver 10 und sind als Einheit drehbar.To carry out the aforementioned changes to the pockets 17, the turret 10 consists of several, namely here of two partial turrets 25 and 26. These are each assigned one of the side walls 18 and 19. With relative adjustment the partial revolvers 25, 26 to one another are therefore also adjusted the side walls 18, 19 as part of one or the other partial revolvers 25, 26. The partial revolvers 25 and 26 together form the revolver 10 and can be rotated as a unit.

Die Teilrevolver 25 und 26 sind um eine gemeinsame Achse drehbar. Im vorliegenden Falle ist der Teilrevolver 26 fest mit einer Antriebswelle bzw. einem Wellenzapfen 27 verbunden. Der Teilrevolver 25 ist hingegen drehbar auf dem Wellenzapfen 27 gelagert.The partial revolvers 25 and 26 can be rotated about a common axis. In the present case, the partial turret 26 is firmly connected to a drive shaft or a shaft journal 27. The partial turret 25, however, is rotatably mounted on the shaft journal 27.

Die Teilrevolver 25 und 26 bestehen im vorliegenden Falle jeweils aus annähernd radial gerichteten Revolverarmen 28, 29 bzw. 30, 31. An den Enden dieser Arme 28, 29 bzw. 30, 31 sind die Seitenwände 18 bzw. 19 angeordnet, jedoch nicht über die volle Länge des Revolvers 10 durchgehend, sondern lediglich als kurze bzw. schmale Schenkel. Die Packungen 11 werden demnach nicht auf ihrer gesamten Länge innerhalb einer Tasche 17 durch Seitenwände 18, 19 und die Bodenwand 22 umfaßt, sondern lediglich an den Enden der langgestreckten Packungen 11. Jede Tasche 17 besteht demnach aus zwei Endtaschen zur Aufnahme der Endbereiche der Packung 11. Diese liegt im mittleren Bereich zwischen den Armen 28 bzw. 29 und 30 bzw. 31 frei. Auch die Bodenwand 22 ist im Bereich der Revolverarme 30 und 31 in Axialrichtung so bemessen wie die an denselben Revolverarmen 30, 31 angeordneten Seitenwände 19.The partial revolvers 25 and 26 in the present case each consist of approximately radially directed revolver arms 28, 29 and 30, 31. At the ends of these arms 28, 29 and 30, 31, the side walls 18 and 19 are arranged, but not over the Full length of the revolver 10 continuously, but only as a short or narrow leg. The packs 11 are therefore not covered over their entire length within a pocket 17 by side walls 18, 19 and the bottom wall 22, but only at the ends of the elongated packs 11. Each pocket 17 accordingly consists of two end pockets for receiving the end regions of the pack 11 This is exposed in the middle area between arms 28 or 29 and 30 or 31. The bottom wall 22 in the area of the turret arms 30 and 31 is dimensioned in the axial direction as well as the side walls 19 arranged on the same turret arms 30, 31.

Die den Seitenwänden 18 einer Tasche 17 zugeordneten Revolverarme 28 und 29 sind mit axialem Abstand voneinander jeweils an einem Bund 32, 33 auf dem Wellenzapfen 27 bzw. am Ende desselben befestigt. Zwischen den Bunden 32, 33 ist der Teilrevolver 25 auf dem Wellenzapfen 27 gelagert, und zwar mit einer durchgehenden Drehhülse 34.The turret arms 28 and 29 assigned to the side walls 18 of a pocket 17 are fastened at an axial distance from one another in each case to a collar 32, 33 on the shaft journal 27 or at the end of the latter. The partial turret 25 is mounted on the shaft journal 27 between the collars 32, 33, specifically with a continuous rotating sleeve 34.

Die Teilrevolver 25, 26 sind durch ein Stellgetriebe 35 längs eines Winkels 36 gegeneinander verstellbar. Das Stellgetriebe 35 besteht aus Kniehebelanordnung mit den Laschen 37 und 38. Diese sind jeweils gelenkig bzw. schwenkbar mit den Seiten benachbarter Revolverarme 28 einerseits und 30 andererseits verbunden. Die beiden Laschen 37 und 38 werden in einem gemeinsamen Gelenk 39 zusammengeführt. In diesem ist eine Tastrolle 40 gelagert. Das aus den Laschen 37 und 38 bestehende Stellgetriebe 35 ist in Richtung auf ein Zusammenbewegen der Seitenwände 18 und 19 der Taschen 17 belastet, also in Richtung auf eine Verkleinerung des Taschenquerschnitts. Zu diesem Zweck greift an dem Kniegelenk, nämlich in dem gemeinsamen Gelenk 39, eine mit dem anderen Ende am Revolver 10 verankerte Zugfeder 41 an.The partial revolvers 25, 26 are adjustable relative to one another along an angle 36 by means of an actuating gear 35. The Actuator 35 consists of a toggle lever arrangement with tabs 37 and 38. These are each articulated or pivotally connected to the sides of adjacent turret arms 28 on the one hand and 30 on the other. The two tabs 37 and 38 are brought together in a common joint 39. A feeler roller 40 is mounted in this. The actuating gear 35 consisting of the tabs 37 and 38 is loaded in the direction of moving the side walls 18 and 19 of the pockets 17 together, that is to say in the direction of a reduction in the pocket cross section. For this purpose, a tension spring 41 anchored to the turret 10 at the other end acts on the knee joint, namely in the common joint 39.

Während der Drehbewegung des Revolvers 10 ist die Zugfeder 41 ausschließlich wirksam. Dies bedeutet, daß eine dem Querschnitt der Taschen 17 verringernde Kraft auf die Teilrevolver 25, 26 ausgeübt wird. Die Packungen 11 werden während dieser Phase in den Taschen unter Klemmwirkung gehalten.During the rotary movement of the turret 10, the tension spring 41 is only effective. This means that a force reducing the cross section of the pockets 17 is exerted on the partial revolvers 25, 26. The packs 11 are held in the pockets during this phase under clamping action.

Während des Stillstands des Revolvers 10 erfolgt eine Relativbewegung der Teilrevolver 25, 26 zueinander im Sinne einer Auseinanderbewegung der Seitenwände 18, 19. Zu diesem Zweck wird gegen die Kraft der Zugfeder 41 das Kniegelenk im Sinne einer Verkleinerung der Winkelstellung zwischen den Laschen 37 und 38 beaufschlagt. Ein Stellorgan wirkt auf die Tastrolle 40 der Laschen 37 und 38 im Sinne einer radial nach außen gerichteten Bewegung. Bei dem gezeigten Ausführungsbeispiel wird die Verstellung durch eine Kurvenscheibe 42 bzw. 43 bewirkt. Bei der Ausführungsform nach Fig. 3 läuft die Tastrolle 40 bei der Verstellung der Laschen 37, 38 auf dem Außenumfang der Kurvenscheibe 42 ab. Diese ist jeweils im Bereich zwischen den Taschen 17 des Revolvers 10 mit einer Kurvennocke 44 versehen, die die Tastrolle 40 beaufschlagt und damit die Laschen 37, 38 verschwenkt, derart, daß die benachbarten Revolverarme 28 und 30 in Richtung zueinander bewegt werden. Bei der Alternativausführung der Kurvenscheibe 43 laut Fig. 4 ist eine analog ausgebildete Kurvennut 45 vorgesehen, in der die Tastrolle 40 bei der Stellbewegung abläuft.While the revolver 10 is at a standstill, the partial revolvers 25, 26 move relative to each other in the sense of a movement of the side walls 18, 19 apart. For this purpose, the knee joint is acted upon against the force of the tension spring 41 in the sense of a reduction in the angular position between the tabs 37 and 38 . An actuator acts on the feeler roller 40 of the tabs 37 and 38 in the sense of a radially outward movement. In the embodiment shown, the adjustment is effected by a cam 42 or 43. In the embodiment according to FIG. 3, the feeler roller 40 runs on the outer circumference of the cam plate 42 when the tabs 37, 38 are adjusted. This is provided in the area between the pockets 17 of the turret 10 with a cam cam 44 which acts on the feeler roller 40 and thus pivots the tabs 37, 38 such that the adjacent turret arms 28 and 30 are moved towards each other. In the alternative embodiment of the cam plate 43 according to FIG. 4, an analog groove 45 is provided, in which the feeler roller 40 runs during the actuating movement.

Die Kurvenscheiben 42, 43 sind konzentrisch zum Revolver 10 angeordnet, so daß während der (taktweisen) Drehbewegung des Revolvers 10 die Tastrolle 40 außerhalb der Kurvennocken 44 auf der Kurvenscheibe 42 bzw. in der Kurvennut 45 der Kurvenscheibe 43 zu laufen vermag. Die Kurvenscheibe 42 bzw. 43 ist zu diesem Zweck drehbar mit einer Führungshülse 46 auf einem feststehenden Hohlzapfen 47 gelagert. Dieser wiederum ist an einem tragenden Element der Verpackungsmaschine gelagert, bei dem Ausführungsbeispiel der Fig. 4 an einem Getriebegehäuse 48. Durch den Hohlzapfen 46 tritt der Wellenzapfen 27 hindurch, dessen Antrieb sich in dem Getriebegehäuse 48 befindet. Die Kurbenscheibe 42 bzw. 43 führt lediglich während der Stillstandsphase des Revolvers 10, nämlich zur Verstellung der Revolverarme 28..31 zueinander, eine Drehbewegung längs des Winkels 36 aus. Diese hin- und hergehende Drehbewegung wird durch eine Schubstange 49 erzeugt, die gelenkig mit der Kurvenscheibe 42 bzw. 43 verbunden ist. Die Schubstange 49 wird in geeigneter Weise angetrieben, z.B. durch einen Druckmittelzylinder (nicht dargestellt).The cams 42, 43 are arranged concentrically with the turret 10, so that during the (cyclical) rotary movement of the turret 10 the feeler roller 40 can run outside the cam cams 44 on the cam 42 or in the cam groove 45 of the cam 43. For this purpose, the cam plate 42 or 43 is rotatably mounted with a guide sleeve 46 on a fixed hollow pin 47. This in turn is mounted on a load-bearing element of the packaging machine, in the exemplary embodiment in FIG. 4 on a gear housing 48. The shaft journal 27, the drive of which is located in the gear housing 48, passes through the hollow journal 46. The crank disk 42 or 43 only executes a rotary movement along the angle 36 during the standstill phase of the turret 10, namely to adjust the turret arms 28 to 31 relative to one another. This reciprocating rotary movement is generated by a push rod 49, which is articulated to the cam plate 42 or 43. The push rod 49 is suitably driven, e.g. by a pressure medium cylinder (not shown).

Bei dem in Fig 3 und 4 gezeigten Anwendungsbeispiel werden die Packungen 11 über eine horizontale Packungsbahn 50 in die dieser zugekehrten Tasche 17 samt Außenumhüllung 12 eingeführt. Nach Zurückgehen eines Schiebers 51 wird der untere bzw. in Drehrichtung rückwärtige Schlauchlappen 15 durch einen Faltfinger 52 gegen die äußere Seitenfläche 16 der Packung 11 umgefaltet. Bei der nachfolgenden Weiterbewegung des Revolvers 10 wird der obere bzw. vordere Schlauchlappen 14 ebenfalls gegen die Seitenfläche 16 umgefaltet, und zwar durch eine ortsfeste, gebogene Führungswand 53, die sich längs eines Teilkreises außerhalb des Bewegungsbereichs des Revolvers 10 erstreckt.In the application example shown in FIGS. 3 and 4, the packs 11 are introduced via a horizontal pack track 50 into the pocket 17 facing them together with the outer wrapper 12. After a slide 51 has returned, the lower or rearward tubular flap 15 is folded over against the outer side surface 16 of the pack 11 by a folding finger 52. During the subsequent further movement of the revolver 10, the upper or front tubular tab 14 is also folded over against the side surface 16, specifically by means of a stationary, curved guide wall 53 which extends lengthways a pitch circle outside the range of motion of the turret 10 extends.

Während der nächsten Stillstandsphase werden die einander überdeckenden Schlauchlappen 14, 15 durch ein erstes Siegelorgan 54 gesiegelt bzw. vorgesiegelt. Bei der nächsten Stillstandsphase erfolgt ein weiteres Versiegeln (Endsiegeln) der Schlauchlappen 14, 15 durch ein weiteres, zweites Siegelorgan 55. Bei der danach folgenden Stillstandsphase wird die fertige Packung 11 aus der horizontal liegenden Tasche 17 in eine ebenfalls horizontal gerichtete Abförderbahn 56 eingeschoben. Hierfür kommt ein Ausschieber 57 zur Wirkung, der hin- und herbewegbar zwischen den Revolverarmen 28...31 angeordnet ist.During the next standstill phase, the overlapping tube tabs 14, 15 are sealed or pre-sealed by a first sealing member 54. During the next standstill phase, the tube tabs 14, 15 are sealed (final sealed) by a further, second sealing element 55. In the subsequent standstill phase, the finished package 11 is pushed out of the horizontally lying pocket 17 into a likewise horizontally directed discharge path 56. For this purpose, a pusher 57 comes into effect, which is arranged so that it can be moved back and forth between the turret arms 28 ... 31.

Durch die beschriebene Ausbildung des Revolvers 10 kann dieser verhältnismäßig schnelle Drehbewegungen bzw. Schalttakte ausführen. Dies wiederum ermöglicht größere Stillstandsphasen zum Ein- und Ausschieben der Packungen. Vorzugsweise beträgt die Bewegungsphase des Faltrevolvers 120° eines Arbeitstaktes. Die gesamte Stillstandsphase beträgt 240°. Die Stillstandsphase wird dabei zweckmäßigerweise in zwei Teilphasen von je 120° aufgeteilt. Während einer ersten Stillstandsphase von 120° erfolgt die Siegelung der Schlauchlappen 14 und 15 durch die Siegelorgane 54 und 55. Während dieser ersten Stillstandsphase bleiben die Seitenwänden 18, 19 der Taschen 17 in der Schließ- bzw. Klemmstellung, also in der engen Position. Während einer weiteren Stillstands-Teilphase von 120° werden die Seitenwände 18, 19 auseinanderbewegt, die Taschen 17 also geöffnet. Es kann nun das Ein- und Ausschieben der Packungen 11 erfolgen.Due to the described design of the revolver 10, it can carry out relatively rapid rotary movements or switching cycles. This, in turn, enables longer periods of inactivity for pushing the packs in and out. The movement phase of the folding turret is preferably 120 ° of a work cycle. The entire standstill phase is 240 °. The standstill phase is expediently divided into two partial phases of 120 ° each. During a first standstill phase of 120 °, the tubular flaps 14 and 15 are sealed by the sealing members 54 and 55. During this first standstill phase, the side walls 18, 19 of the pockets 17 remain in the closed or clamped position, that is to say in the narrow position. During a further standstill partial phase of 120 °, the side walls 18, 19 are moved apart, that is to say the pockets 17 are opened. The packs 11 can now be pushed in and out.

Claims (14)

  1. Turret (10) with pockets (17) arranged along the periphery and intended for receiving articles, especially packs (11), the pockets being limited by at least two approximately parallel side walls which are movable relative to one another in order to increase or reduce the cross-section of the pockets, characterised in that the side walls (18, 19) are connected respectively to different part turrets (25, 26) movable independently of one another.
  2. Turret according to Claim 1, characterised in that the part turrets (25, 26) are rotatable relative to one another about a common axis.
  3. Turret according to Claim 1 or 2, characterised in that each part turret (25, 26) has several turret arms (28, 29; 30, 31) which extend outwards from a central common pivot axle, in particular a shaft journal (27), and to which the side walls (18, 19) are attached on the outside, in such a way that at least two turret arms (28, 29 or 30, 31) of either of the two part turrets (25, 26), together with the associated side walls (18, 19), limit a pocket (17).
  4. Turret according to Claim 3, characterised in that the turret arms (28 to 31) and the side walls (18, 19) are directed parallel to the (imaginary) radial midplane of the pockets (17).
  5. Turret according to Claim 2 and one or more of the further claims, characterised in that arranged on one of the part turrets (25) in the region of the associated side wall (19) is an end wall (20, 21) directed transversely to the latter and belonging to the pocket (17).
  6. Turret according to Claim 2 and one or more of the further claims, characterised in that, on at least one of the part turrets (25), a bottom wall (22) of the pocket (17) is arranged in the region of the side wall (19) on the radially inner side of the latter.
  7. Turret according to Claim 2 and one or more of the further claims, characterised in that each part turret (25, 26) has, for each pocket (17), two turret arms (28, 29; 30, 31) arranged at an axial distance from one another, and in that the walls for forming the pockets (17) (side wall 18, 19; end wall 20, 21; bottom wall 22) are formed only in the region of the turret arms (28 to 31), in such a way that each pocket (17) consists of two lateral part pockets complementing one another.
  8. Turret according to Claim 2 and one or more of the further claims, characterised in that one of the part turrets (26) is attached fixedly to a drive shaft (shaft journal 27), and the other part turret (25) is mounted rotatably on the drive shaft (shaft journal 27), especially between the turret arms (28, 29) of the part turret (26) mounted fixedly on the drive shaft (shaft journal 27).
  9. Turret according to Claim 8 and one or more of the further claims, characterised in that the turret arms (30, 31) of the part turret (25) which are arranged at an axial distance from one another are connected to a common rotary sleeve (24) which is mounted rotatably on the shaft journal (27), especially between the turret arms (28, 29) of the part turret (26).
  10. Turret according to Claim 1 and one or more of the further claims, characterised in that, during the rotation of the turret (10), the side walls (18, 19) of the pockets (17) are at a shorter distance from one another, in such a way that the article (pack 11) is held between the side walls (18, 19) of the pocket (17) by means of a clamping force.
  11. Turret according to Claim 1 and one or more of the further claims, characterised in that, during the stationary phase of the turret (10), during a first phase the side walls (18, 19) are held in the relative position fixing the packs (11) with a clamping effect, for carrying out manipulations on the packs (11), and thereafter, during a further stationary phase, as a result of a relative movement of the part turrets (25, 26) the side walls (18, 19) can be moved away from one another, especially for pushing the packs (11) into and out of the pockets (17).
  12. Turret according to Claim 2 and one or more of the further claims, characterised in that the part turrets (25, 26) are connected to one another by means of at least one regulating gear (35), especially by means of two plates (37, 38) which are connected to one another in an articulated manner and which can be stressed in the spreading direction to move the part turrets (25, 26) in order to narrow the pockets (17).
  13. Turret according to Claim 12 and one or more of the further claims, characterised in that the plates (37, 38) are stressed by a pressure member, especially by a tension spring (41), so as to spread or so as to reduce the cross-section of the pockets (17), and in that, during a stationary phase, the plates (37, 38) can be stressed counter to the load exerted by the pressure member (tension spring 41) by means of a counter-pressure member, especially by means of a cam disc (42, 43) acting via a tracer roller (40), in order to increase the cross-section of the pockets (17).
  14. Turret according to Claim 13 and one or more of the further claims, characterised in that, during the stationary phase of the turret (10), the cam disc (42, 43) actuates the regulating gear (35) via the tracer roller (40) as a result of a rotary stroke over an angle (36).
EP87110517A 1986-08-16 1987-07-21 Revolver for packing machines Expired - Lifetime EP0256332B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3627912 1986-08-16
DE19863627912 DE3627912A1 (en) 1986-08-16 1986-08-16 REVOLVER FOR PACKAGING MACHINES

Publications (3)

Publication Number Publication Date
EP0256332A2 EP0256332A2 (en) 1988-02-24
EP0256332A3 EP0256332A3 (en) 1989-01-25
EP0256332B1 true EP0256332B1 (en) 1992-06-03

Family

ID=6307591

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Application Number Title Priority Date Filing Date
EP87110517A Expired - Lifetime EP0256332B1 (en) 1986-08-16 1987-07-21 Revolver for packing machines

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US (1) US4790115A (en)
EP (1) EP0256332B1 (en)
JP (1) JPH0780562B2 (en)
CN (1) CN1007340B (en)
BR (1) BR8704218A (en)
CA (1) CA1325376C (en)
DE (2) DE3627912A1 (en)

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Also Published As

Publication number Publication date
DE3627912A1 (en) 1988-02-18
CA1325376C (en) 1993-12-21
DE3779514D1 (en) 1992-07-09
US4790115A (en) 1988-12-13
JPH0780562B2 (en) 1995-08-30
BR8704218A (en) 1988-04-12
CN1007340B (en) 1990-03-28
CN87105662A (en) 1988-03-09
EP0256332A3 (en) 1989-01-25
JPS6351215A (en) 1988-03-04
EP0256332A2 (en) 1988-02-24

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