EP0569937B2 - Workstation in a packaging machine with movable lower part - Google Patents

Workstation in a packaging machine with movable lower part Download PDF

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Publication number
EP0569937B2
EP0569937B2 EP93107650A EP93107650A EP0569937B2 EP 0569937 B2 EP0569937 B2 EP 0569937B2 EP 93107650 A EP93107650 A EP 93107650A EP 93107650 A EP93107650 A EP 93107650A EP 0569937 B2 EP0569937 B2 EP 0569937B2
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EP
European Patent Office
Prior art keywords
work station
guide rods
guide
station according
rod
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EP93107650A
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German (de)
French (fr)
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EP0569937A1 (en
EP0569937B1 (en
Inventor
Johann Natterer
Elmar Ehrmann
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Multivac Sepp Haggenmueller GmbH and Co KG
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Multivac Sepp Haggenmueller GmbH and Co KG
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    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/021—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas the containers or wrappers being interconnected
    • 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
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/02—Driving gear

Definitions

  • the invention relates to a workstation integrated in a packaging machine, having an upper part and a lower part, which can be lowered into a lowered position or lifted into a raised position, and a lifting device for carrying out the movement.
  • Such a workstation is used in a known manner as part of packaging machines and in particular of vacuum packaging machines. Because of the forces occurring during operation, the known workstations are very heavy.
  • a workstation for a packaging machine is known in accordance with Fig. 4 an upper part and a lower part are each movable relative to each other via a toggle joint.
  • the drive of the two toggle joints is done together via a shaft connected to these.
  • a cutting station of a packaging machine is known according to FIG. 16, in which a pressure plate forming an upper part can be moved relative to a cutting drum forming a fixed lower part.
  • a lifting device for carrying out the movement which comprises a pair of parallel aligned guide rods which are fixedly connected at its upper end to the upper part and at its lower end fixed to a yoke.
  • the guide rods are slidably moved with the associated upper part via a toggle lever system in guide bushes connected to the lower part.
  • the GB-A 804352 shows a press in which a lower part is moved against an upper part via a Kniehebelsysytem.
  • the object of the invention is to provide a workstation of the type described above, which is used for comparable purposes and in particular also in vacuum packaging machines, which is constructed considerably lighter and compact, which has a particularly easily adjustable lifting device for the lower part and which is constructed in that it can be moved within the packaging machine.
  • the workstation has the advantage that it is space-saving and easy to build and that the lifting device for the lower part is due to the leadership of the lower part relative to the upper part exactly and easily adjustable.
  • the packaging machine shown comprises a trained as a thermoforming station first workstation 1, designed as an evacuation and sealing station second workstation 2 and designed as a cutting station third workstation 3.
  • the three workstations are supported by a machine frame 4, at the same time the guide for a chain drive, not shown for conveying the packaging material 5 or the packaging container to be formed therefrom.
  • the workstation has an upper part 6 and a cooperating lower part 7, which serve in the case of thermoforming station in the merged state by applying corresponding pressure differences in the interior for deep drawing of containers 8 from the packaging material 5 formed from films.
  • the workstation has a substantially rectangular configuration in its plan view.
  • the upper part is supported at its four corners by four guide rods 9, 10, 11.
  • the upper part in its four corners in the vertical direction Vietnameserekkende and mutually parallel bores, which are dimensioned with respect to their dimension and designed with respect to their surface so that the upper part on the guide rods 9, 10, 11 can slide.
  • There are provided for adjustable connection of the upper part with the guide rods screws 12, 13, 14, by adjusting the upper part is adjustable in a small area on the guide rods down.
  • pivot bearings 15, 16, 17 are firmly connected by friction welding to pivot bearings 15, 16, 17.
  • a pair of associated left and right pivot bearings 15, 16 are connected by a yoke 18 each.
  • the respectively associated rotary bearings 16, 17 are connected to one another via a lifting shaft 19.
  • the length dimensions of the yoke 18 and lifting shaft 19 are dimensioned so that the associated four guide rods are aligned parallel to each other.
  • the lift shafts are best Fig. 2 it can be seen a rectangular cross-section and have at their end faces at one end of the rectangular cross-section bearing journals with which they are mounted in the pivot bearings.
  • the work station of the lower part 7 comprises the actual cooperating with the upper part of the chamber part 20 and a supporting this bottom part 21.
  • the bottom part has at the guide rods corresponding locations guide bushings 22, 23, as best of Fig. 4 is apparent
  • pairs of toggle levers 24, 25 are provided on two opposite sides of the workstation. These have as lower with the pivot bearings 15, 16, 17 connected leg, which are formed by the respective lifting shaft 19.
  • the end of the rectangular shaft opposite from the bearing pin is connected via a pivot connection 26, 27 to an upper leg 28, 29 at one of its ends, which is connected at its opposite free end to the bottom part 21 via a rotary connection.
  • the connection point between the legs 28, 29 and the bottom part 21 is in the vertical direction directly above the respective bearing of the lifting shaft 19th
  • a parallel bar 30 is connected in a rotationally fixed manner via two equal-length legs 31, 32 to the pivots of the lifting shafts 19 or the lifting shafts in the manner of a parallelogram.
  • the fulcrums are such that there is a parallelogram construction.
  • a pneumatically or hydraulically driven piston-cylinder device 33 is provided, which is fastened with its one end to the yoke 18 and engages with the free end of its piston rod on the parallel rod 30.
  • the piston-cylinder device is arranged such that the lower part 7 in the retracted position of the piston 34 of the piston-cylinder device is the toggle joint in its folded position and thus the lower part in its lowered position.
  • the toggle joint In the extended position of the piston 34, the toggle joint is in his in Fig. 3 shown extended position and thus the lower part in the upper position in which the chamber is closed.
  • the toggle joint must carry the maximum force. This is possible in spite of the lifting shaft 19 formed only from a rectangular material, because the rectangular profile is aligned here in the vertical direction and reaches the highest rigidity in the working position.
  • a pneumatically actuated large-area membrane device 35 is provided, which is acted upon via a pneumatic line 36.
  • a default setting via the screws 12, 13, 14 for the position of the upper part. It is then moves the lower part in the manner described above relative to the upper part in the closed position.
  • the membrane 35 is subjected to compressed air, whereby an additional contact force is exerted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Vacuum Packaging (AREA)
  • Manipulator (AREA)
  • Press Drives And Press Lines (AREA)

Description

Die Erfindung betrifft eine Arbeitsstation, integriert in eine Verpackungsmaschine, mit einem Oberteil und einem in eine abgesenkte Stellung senkbaren bzw. in eine angehobene Stellung anhebbaren Unterteil und einer Hubeinrichtung zum Ausführen der Bewegung.The invention relates to a workstation integrated in a packaging machine, having an upper part and a lower part, which can be lowered into a lowered position or lifted into a raised position, and a lifting device for carrying out the movement.

Eine solche Arbeitsstation wird in bekannter Weise als Bestandteil von Verpackungsmaschinen und insbesondere von Vakuumverpackungsmaschinen verwendet. Wegen der im Betrieb dabei auftretenden Kräfte sind die bekannten Arbeitsstationen sehr schwer gebaut.Such a workstation is used in a known manner as part of packaging machines and in particular of vacuum packaging machines. Because of the forces occurring during operation, the known workstations are very heavy.

Aus der FR-A-2 180 785 ist eine Arbeitsstation für eine Verpackungsmaschine bekannt, bei der gemäß Fig. 4 ein Oberteil und ein Unterteil jeweils über ein Kniehebelgelenk gegeneinander bewegbar sind. Der Antrieb der beiden Kniehebelgelenke erfolgt gemeinsam über eine mit diesen verbundene Welle. Es besteht jedoch keine Führung der Bewegung des Unterteils relativ zum Oberteil und damit ist eine exakte Einstellung der Bewegung schwierig.From the FR-A-2 180 785 a workstation for a packaging machine is known in accordance with Fig. 4 an upper part and a lower part are each movable relative to each other via a toggle joint. The drive of the two toggle joints is done together via a shaft connected to these. However, there is no guidance of the movement of the lower part relative to the upper part and thus an exact adjustment of the movement is difficult.

Aus der US 4,034,536 ist gemäß Fig. 16 eine Schneidstation einer Verpackungsmaschine bekannt, bei der eine ein Oberteil bildende Andruckplatte gegenüber einer ein feststehendes Unterteil bildenden Schneidtrommel bewegt werden kann. Es ist eine Hubeinrichtung zum Ausführen der Bewegung vorgesehen, welche ein Paar parallel zueinander ausgerichtete Führungsstangen aufweist, die an ihrem oberen Ende fest mit dem Oberteil und an ihrem unteren Ende fest mit einem Joch verbunden sind. Die Führungsstangen werden mit dem damit verbundenen Oberteil über ein Kniehebelsystem in mit dem Unterteil verbundenen Führungsbuchsen gleitend bewegt.From the US 4,034,536 16, a cutting station of a packaging machine is known according to FIG. 16, in which a pressure plate forming an upper part can be moved relative to a cutting drum forming a fixed lower part. There is provided a lifting device for carrying out the movement, which comprises a pair of parallel aligned guide rods which are fixedly connected at its upper end to the upper part and at its lower end fixed to a yoke. The guide rods are slidably moved with the associated upper part via a toggle lever system in guide bushes connected to the lower part.

Die GB-A 804352 zeigt eine Presse, bei der ein Unterteil gegen ein Oberteil über ein Kniehebelsysytem bewegt wird.The GB-A 804352 shows a press in which a lower part is moved against an upper part via a Kniehebelsysytem.

Aufgabe der Erfindung ist es, eine Arbeitsstation der eingangs beschriebenen Art zu schaffen, die zu vergleichbaren Zwecken und insbesondere auch bei Vakuumverpackungsmaschinen einsetzbar ist, die erheblich leichter und platzsparend aufgebaut ist, die eine besonders leicht einstellbare Hubeinrichtung für das Unterteil aufweist und die so aufgebaut ist, daß sie innerhalb der Verpackungsmaschine bewegt werden kann.The object of the invention is to provide a workstation of the type described above, which is used for comparable purposes and in particular also in vacuum packaging machines, which is constructed considerably lighter and compact, which has a particularly easily adjustable lifting device for the lower part and which is constructed in that it can be moved within the packaging machine.

Diese Aufgabe wird durch die in Patentanspruch 1 gekennzeichnete Arbeitsstation gelöst, wobei der nicht mit den Kniehebelsystem verbundene Angriffspunkt der Kolben-Zylindereinrichtung nicht mit einem Rahmen, sondern mit dem Joch verbunden ist, welche fest mit dem Oberteil verbunden ist.This object is achieved by the characterized in claim 1 workstation, wherein the non-connected to the toggle lever attachment point of the piston-cylinder device is not connected to a frame, but with the yoke, which is fixedly connected to the upper part.

Die Arbeitsstation hat den Vorteil, daß sie platzsparend und einfach gebaut ist und daß die Hubeinrichtung für das Unterteil aufgrund der Führung des Unterteils relativ zu dem Oberteil exakt und leicht einstellbar ist.The workstation has the advantage that it is space-saving and easy to build and that the lifting device for the lower part is due to the leadership of the lower part relative to the upper part exactly and easily adjustable.

Weitere Vorteile und Zweckmäßigkeiten der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantages and advantages of the invention are characterized in the subclaims.

Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispieles anhand der Figuren. Von den Figuren zeigen:

Fig. 1
eine schematische Seitenansicht einer Vakuumverpackungsmaschine mit weggelassener Seitenabdeckung;
Fig.2
eine Seitenansicht einer Arbeitsstation in geöffneter Stellung der Station;
Fig. 3
die Fig. 2 entsprechende Ansicht in geschlossener Darstellung;
Fig. 4
die in den Fig. 2 und 3 gezeigte Vorrichtung in Richtung der Pfeile II-II in Fig. 1 in einem Teil in geöffneter und in einem Teil in geschlossener Darstellung.
Further features and advantages of the invention will become apparent from the description of an embodiment with reference to FIGS. From the figures show:
Fig. 1
a schematic side view of a vacuum packaging machine with omitted side cover;
Fig.2
a side view of a workstation in the open position of the station;
Fig. 3
the Fig. 2 corresponding view in closed representation;
Fig. 4
in the Fig. 2 and 3 shown device in the direction of the arrows II-II in Fig. 1 in one part in open and in part in closed representation.

Die in Fig. 1 gezeigte Verpackungsmaschine umfaßt eine als Tiefziehstation ausgebildete erste Arbeitsstation 1, eine als Evakuier- und Versiegelungsstation ausgebildete zweite Arbeitsstation 2 und eine als Schneidestation ausgebildete dritte Arbeitsstation 3. Die drei Arbeitsstationen werden von einem Maschinenrahmen 4 getragen, der gleichzeitig auch die Führung für einen nicht gezeigten Kettenantrieb zum Fördern des Verpackungsmaterials 5 bzw. der daraus zu bildenden Verpackungsbehälter aufweist.In the Fig. 1 The packaging machine shown comprises a trained as a thermoforming station first workstation 1, designed as an evacuation and sealing station second workstation 2 and designed as a cutting station third workstation 3. The three workstations are supported by a machine frame 4, at the same time the guide for a chain drive, not shown for conveying the packaging material 5 or the packaging container to be formed therefrom.

Wie am besten aus den Fig. 2 bis 4 ersichtlich ist, weist die Arbeitsstation ein Oberteil 6 und ein damit zusammenwirkendes Unterteil 7 auf, die im Fall der Tiefziehstation im zusammengeführten Zustand durch Anlegen entsprechender Druckdifferenzen im Inneren zum Tiefziehen von Behältern 8 aus dem aus Folien gebildeten Verpackungsmaterial 5 dienen.How best of the Fig. 2 to 4 it can be seen, the workstation has an upper part 6 and a cooperating lower part 7, which serve in the case of thermoforming station in the merged state by applying corresponding pressure differences in the interior for deep drawing of containers 8 from the packaging material 5 formed from films.

Die Arbeitsstation weist in ihrer Draufsicht eine im wesentlichen rechteckige Konfiguration auf. Das Oberteil wird an seinen vier Ecken von vier Führungsstangen 9, 10, 11 getragen. Zu diesem Zweck weist das Oberteil in seinen vier Ecken sich in vertikaler Richtung erstrekkende und zueinander parallel ausgerichtete Bohrungen auf, die bezüglich ihrer Abmessung so bemessen und bezüglich ihrer Oberfläche so gestaltet sind, daß das Oberteil auf den Führungsstangen 9, 10, 11 gleiten kann. Es sind zur einstellbaren Verbindung des Oberteiles mit den Führungsstangen Schrauben 12, 13, 14 vorgesehen, durch deren Verstellung das Oberteil in einem kleinen Bereich auf den Führungsstangen nach unten verstellbar ist.The workstation has a substantially rectangular configuration in its plan view. The upper part is supported at its four corners by four guide rods 9, 10, 11. For this purpose, the upper part in its four corners in the vertical direction erstrekkende and mutually parallel bores, which are dimensioned with respect to their dimension and designed with respect to their surface so that the upper part on the guide rods 9, 10, 11 can slide. There are provided for adjustable connection of the upper part with the guide rods screws 12, 13, 14, by adjusting the upper part is adjustable in a small area on the guide rods down.

An dem dem Oberteil 6 gegenüberliegenden unteren Ende der Führungsstangen sind diese mittels Reibschweißens mit Drehlagern 15, 16, 17 fest verbunden. Wie am besten aus den Fig. 2 und 3 ersichtlich ist, sind jeweils ein Paar von zusammengehörendem linken und rechten Drehlager 15, 16 durch ein Joch 18 miteinander verbunden. In der Richtung senkrecht dazu sind die jeweils zusammengehörenden Drehlager 16, 17 über eine Hubwelle 19 miteinander verbunden. Die Längenabmessungen von Joch 18 und Hubwelle 19 sind so bemessen, daß die damit verbundenen vier Führungsstangen Parallel zueinander ausgerichtet sind. Die Hubwellen weisen, wie am besten aus Fig. 2 ersichtlich ist, einen rechteckförmigen Querschnitt auf und besitzen an ihren Stirnseiten an einem Ende des rechteckförmigen Querschnittes Lagerzapfen, mit denen sie in den Drehlagern gelagert sind.At the lower part of the guide rods opposite the upper part 6, these are firmly connected by friction welding to pivot bearings 15, 16, 17. How best of the Fig. 2 and 3 it can be seen, a pair of associated left and right pivot bearings 15, 16 are connected by a yoke 18 each. In the direction perpendicular thereto, the respectively associated rotary bearings 16, 17 are connected to one another via a lifting shaft 19. The length dimensions of the yoke 18 and lifting shaft 19 are dimensioned so that the associated four guide rods are aligned parallel to each other. The lift shafts are best Fig. 2 it can be seen a rectangular cross-section and have at their end faces at one end of the rectangular cross-section bearing journals with which they are mounted in the pivot bearings.

Ferner umfaßt die Arbeitsstation des Unterteils 7 mit dem eigentlichen mit dem Oberteil zusammenwirkenden Kammerteil 20 und einem diesen tragenden Bodenteil 21. Der Bodenteil weist an den den Führungsstangen entsprechenden Stellen Führungsbuchsen 22, 23 auf, wie dies am besten aus Fig. 4 ersichtlich istFurther, the work station of the lower part 7 comprises the actual cooperating with the upper part of the chamber part 20 and a supporting this bottom part 21. The bottom part has at the guide rods corresponding locations guide bushings 22, 23, as best of Fig. 4 is apparent

An zwei einander gegenüberliegenden Seiten der Arbeitsstation sind, wie am besten aus Fig. 2 und Fig. 3 ersichtlich ist, Paare von Kniehebeln 24, 25 vorgesehen. Diese weisen als unteren mit den Drehlagern 15, 16, 17 verbundene Schenkel auf, die durch die jeweilige Hubwelle 19 gebildet werden. Das von den den Lagerzapfen aufweisenden Ende gegenüberliegende Ende der rechteckigen Welle ist über eine Drehverbindung 26, 27 mit einem oberen Schenkel 28, 29 an einem von dessen Enden verbunden, der an seinem gegenüberliegenden freien Ende über eine Drehverbindung mit dem Bodenteil 21 verbunden ist. Der Verbindungspunkt zwischen den Schenkel 28, 29 und dem Bodenteil 21 liegt in vertikaler Richtung direkt über dem jeweiligen Lager der Hubwelle 19.On two opposite sides of the workstation are, as best of all Fig. 2 and Fig. 3 it can be seen, pairs of toggle levers 24, 25 are provided. These have as lower with the pivot bearings 15, 16, 17 connected leg, which are formed by the respective lifting shaft 19. The end of the rectangular shaft opposite from the bearing pin is connected via a pivot connection 26, 27 to an upper leg 28, 29 at one of its ends, which is connected at its opposite free end to the bottom part 21 via a rotary connection. The connection point between the legs 28, 29 and the bottom part 21 is in the vertical direction directly above the respective bearing of the lifting shaft 19th

Ferner ist nach Art eines Parallelogrammes eine Parallelstange 30 über zwei gleichlange Schenkel 31, 32 mit den Drehzapfen der Hubwellen 19 bzw. den Hubwellen selbst drehfest verbunden. Die Drehpunkte liegen so, daß eine Parallelogrammkonstruktion vorliegt. Schließlich ist eine pneumatisch oder hydraulisch angetriebene Kolben-Zylindereinrichtung 33 vorgesehen, die mit ihrem einen Ende am Joch 18 befestigt ist und mit dem freien Ende ihrer Kolbenstange an der Parallelstange 30 angreift.Furthermore, a parallel bar 30 is connected in a rotationally fixed manner via two equal-length legs 31, 32 to the pivots of the lifting shafts 19 or the lifting shafts in the manner of a parallelogram. The fulcrums are such that there is a parallelogram construction. Finally, a pneumatically or hydraulically driven piston-cylinder device 33 is provided, which is fastened with its one end to the yoke 18 and engages with the free end of its piston rod on the parallel rod 30.

Wie am besten aus den Fig. 2 und 3 ersichtlich ist, ist die Kolben-Zylindereinrichtung derart angeordnet, daß das Unterteil 7 in zurückgezogener Stellung des Kolbens 34 der Kolben-Zylindereinrichtung das Kniehebelgelenk in seiner gefalteten Stellung und damit das Unterteil in seiner abgesenkten Stellung ist. In der ausgefahrenen Stellung des Kolbens 34 befindet sich das Kniehebelgelenk in seiner in Fig. 3 gezeigten gestreckten Stellung und damit das Unterteil in der oberen Stellung, in der die Kammer geschlossen ist. Gerade in dieser Stellung muß das Kniehebelgelenk die maximale Kraft tragen. Das ist trotz der nur aus einem Rechteckmaterial gebildeten Hubwelle 19 möglich, weil das Rechteckprofil hier in vertikaler Richtung ausgerichtet ist und in Arbeitsstellung die höchste Steifigkeit erreicht.How best of the Fig. 2 and 3 it can be seen, the piston-cylinder device is arranged such that the lower part 7 in the retracted position of the piston 34 of the piston-cylinder device is the toggle joint in its folded position and thus the lower part in its lowered position. In the extended position of the piston 34, the toggle joint is in his in Fig. 3 shown extended position and thus the lower part in the upper position in which the chamber is closed. Especially in this position, the toggle joint must carry the maximum force. This is possible in spite of the lifting shaft 19 formed only from a rectangular material, because the rectangular profile is aligned here in the vertical direction and reaches the highest rigidity in the working position.

Für den Betrieb erfolgt zunächst über die oben beschriebene Schraubeinstellung mittels der Schrauben 12 und 13 eine Feineinstellung der Lage des Oberteiles derart, daß eine ausreichende Verschlußkraft genau dann zwischen den beiden Teilen wirksam ist, wenn der Kniehebelmechanismus in die in Fig. 3 gezeigte gestreckte Arbeitsstellung bewegt ist.For operation takes place first on the above-described screw adjustment by means of screws 12 and 13, a fine adjustment of the position of the upper part such that a sufficient closure force is effective between the two parts, if the toggle mechanism in the in Fig. 3 shown stretched working position is moved.

Bei der in Fig. 4 gezeigten Ausführungsform ist zusätzlich zu der bereits beschriebenen Feineinstellung der Höhe des Oberteiles 6 über die Schrauben 12, 13, 14 zwischen dem Bodenteil 21 und dem Kammerteil 20 noch eine pneumatisch betätigbare großflächige Membraneinrichtung 35 vorgesehen, die über eine Pneumatikleitung 36 beaufschlagt wird. Bei dieser Ausführungsform erfolgt zunächst eine Voreinstellung über die Schrauben 12, 13, 14 für die Stellung des Oberteiles. Es wird dann das Unterteil in der oben beschriebenen Weise relativ zum Oberteil in die Schließstellung bewegt. Zur Erhöhung des Anpressdruckes zwischen Unterteil und Oberteil wird die Membran 35 mit Druckluft beaufschlagt, wodurch eine zusätzliche Anpresskraft ausgeübt wird. Anstelle der Membraneinrichtung können auch Kurzhubzylinder, Hydraulikzylinder oder eine Exzentereinrichtung zum Erzeugen der zusätzlichen hohen Schließkraft vorgesehen sein.At the in Fig. 4 In the embodiment shown, in addition to the already described fine adjustment of the height of the upper part 6 via the screws 12, 13, 14 between the bottom part 21 and the chamber part 20 is still a pneumatically actuated large-area membrane device 35 is provided, which is acted upon via a pneumatic line 36. In this embodiment, a default setting via the screws 12, 13, 14 for the position of the upper part. It is then moves the lower part in the manner described above relative to the upper part in the closed position. To increase the contact pressure between the lower part and upper part, the membrane 35 is subjected to compressed air, whereby an additional contact force is exerted. Instead of the membrane device, it is also possible to provide short-stroke cylinders, hydraulic cylinders or an eccentric device for generating the additional high closing force.

Claims (8)

  1. A work station (1, 2, 4) comprising an upper part (6) and a lower part (7), lowerable into a lower position and risable into a rised position and a lifting device for carrying out the movement of the lower part by at least a pair of guide rods (9, 10, 11) arranged in parallel to each other, the guide rods being fixedly connected with their upper ends to the upper part (6) and with their lower ends to a yoke (18), guide sleeves (23) running on the guide rods (9, 10, 11) and being connected to the lower part (7), a toggle lever system (24, 25) connected with the guide sleeves (23) and being mounted such that in the bent position it holds the lower part through the guide sleeves in the lower position and in the straight position it holds the same in the uppermost portion, and a piston cylinder device (33) having points of action associated with the piston and the cylinder, resp., one of the points of action being connected to the yoke (18) and the other being connected with the toggle lever system (24, 25);
    wherein the one outer point of rotation of the toggle lever system is connected to the guide sleeve and the other outer point of rotation is connected to the guide rod by means of a pivot bearing and wherein on each side of the work station (1) a first and a second guide rod is provided which are connected to each other by lifting shafts (19) forming arms connected with the guide rods, respectively.
  2. The work station according to claim 1,
    characterized in that the arm (19) of the toggle lever system connected with the guide rod comprises a rectangular cross-section, the long side thereof extending essentially parallel to the guide rods (9, 10, 11) in the straight condition.
  3. The work station according to claim 2,
    characterized in that the guide rods (9, 10, 11) each comprise the pivot bearing for bearing the other outer point of rotation at their lower end, and the guide rods are each connected there with this pivot bearing of the arm (19) by friction welding.
  4. The work station according to one of claims 1 to 3,
    characterized in that an element (35) is provided between the lower part (20) and the bottom part (21) for generating a high closure pressure.
  5. The work station according to one of claims 1 to 4,
    characterized in that the upper part (6) and the guide rods (9, 10, 11) are connected with each other such that a fine adjustment in height is possible.
  6. The work station according to one of claims 3 to 5,
    characterized in that a rod (30) is provided extending in parallel to the yoke (18) and which is fixed without rotation through rotatably supported arms (31, 32) at each end of the rod (30) with pivot pins of the lifting shafts (19).
  7. The work station according to claim 6,
    characterized in that the point of action of the piston cylinder device (33, 34) connected with the toggle lever system (24, 25) is positioned at an end of the arm (31, 32).
  8. The work station according to claim 7,
    characterized in that the pivot points defined by the pivot bearings at the guide rods (9, 10, 11) and the pivot bearings at the rod (30) are arranged in a relation to each other such that they are at the vertices of a parallelogram so that the rod (30) can be moved in parallel to the yoke (18).
EP93107650A 1992-05-15 1993-05-11 Workstation in a packaging machine with movable lower part Expired - Lifetime EP0569937B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4216210A DE4216210A1 (en) 1992-05-15 1992-05-15 Workstation with an upper part and a lower part movable relative to it
DE4216210 1992-05-15

Publications (3)

Publication Number Publication Date
EP0569937A1 EP0569937A1 (en) 1993-11-18
EP0569937B1 EP0569937B1 (en) 1996-08-21
EP0569937B2 true EP0569937B2 (en) 2008-05-14

Family

ID=6459040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107650A Expired - Lifetime EP0569937B2 (en) 1992-05-15 1993-05-11 Workstation in a packaging machine with movable lower part

Country Status (4)

Country Link
EP (1) EP0569937B2 (en)
JP (1) JP3338903B2 (en)
DE (2) DE4216210A1 (en)
ES (1) ES2093313T5 (en)

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DE19734513A1 (en) * 1997-08-08 1999-02-11 Multivac Haggenmueller Kg Lifting device for a work station of a packaging machine
EP0895933B2 (en) * 1997-08-08 2007-03-07 Multivac Sepp Haggenmüller Kg Lifting device for an operating station in a packaging machine
DE19960084A1 (en) * 1999-12-13 2001-06-21 Kraemer & Grebe Kg Packing machine has work stations with tools mounted on vertically sliding plates moving in guides, crankshaft being attached at one end to bar fixed to each plate and at other end to drive which moves it clockwise and anti-clockwise
DE10227610A1 (en) * 2002-06-20 2004-01-15 Multivac Sepp Haggenmüller GmbH & Co. Packaging method and apparatus
DE10327092A1 (en) * 2003-06-13 2004-12-30 Cfs Germany Gmbh Work station and packaging machine
DE102004006118A1 (en) * 2004-02-06 2005-08-25 Cfs Germany Gmbh Packaging machine with several lifting devices per work station
DE102006050415A1 (en) * 2006-10-20 2008-04-24 Cfs Germany Gmbh Packaging machine with a controllable pneumatic / hydraulic drive
EP1988024B2 (en) 2007-05-04 2017-05-24 GEA Food Solutions Germany GmbH Packaging machine with foreign substance detection
JP5231054B2 (en) * 2008-03-14 2013-07-10 新明工業株式会社 Lifter device
DE102009008452B3 (en) * 2009-02-11 2010-10-07 Multivac Sepp Haggenmüller Gmbh & Co. Kg Packaging machine with a workstation having an electric hoist with coarse and fine stroke
DE102010013889A1 (en) * 2010-04-07 2011-10-13 Multivac Sepp Haggenmüller Gmbh & Co. Kg Device for chamber belt machine
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ES2597703T3 (en) 2012-05-24 2017-01-20 Multivac Sepp Haggenmüller Gmbh & Co Kg Lifting equipment for a packaging machine
EP2746167B1 (en) 2012-12-19 2015-07-22 Multivac Sepp Haggenmüller GmbH & Co. KG Deep draw packaging machine with hoisting gear powered by an electric motor
EP2896573B1 (en) * 2014-01-21 2018-03-14 MULTIVAC Sepp Haggenmüller SE & Co. KG Deep draw packaging machine with upper film moulding station and corresponding method
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CN109368546B (en) * 2018-11-29 2023-10-20 库卡机器人(广东)有限公司 Automatic guiding transport vehicle and jacking device thereof
CN110713137A (en) * 2019-11-07 2020-01-21 广州市第一市政工程有限公司 Oil top handling tool
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FR3138415A1 (en) * 2022-07-26 2024-02-02 Mecapack machine for closing a package comprising at least one body and one closing element

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Also Published As

Publication number Publication date
EP0569937A1 (en) 1993-11-18
ES2093313T5 (en) 2008-11-01
ES2093313T3 (en) 1996-12-16
DE4216210A1 (en) 1993-11-18
JPH0624692A (en) 1994-02-01
EP0569937B1 (en) 1996-08-21
DE59303470D1 (en) 1996-09-26
JP3338903B2 (en) 2002-10-28

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