EP0127155B1 - Method and device for closing a container with a cover, which both consist of a plastically deformable material - Google Patents

Method and device for closing a container with a cover, which both consist of a plastically deformable material Download PDF

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Publication number
EP0127155B1
EP0127155B1 EP84105983A EP84105983A EP0127155B1 EP 0127155 B1 EP0127155 B1 EP 0127155B1 EP 84105983 A EP84105983 A EP 84105983A EP 84105983 A EP84105983 A EP 84105983A EP 0127155 B1 EP0127155 B1 EP 0127155B1
Authority
EP
European Patent Office
Prior art keywords
container
lid
frame elements
rim
flange
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
Application number
EP84105983A
Other languages
German (de)
French (fr)
Other versions
EP0127155A1 (en
Inventor
Peter Stenzel
Hans-Ferdinand Pingel
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.)
Novelis Deutschland GmbH
Original Assignee
Alcan Ohler GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcan Ohler GmbH filed Critical Alcan Ohler GmbH
Priority to AT84105983T priority Critical patent/ATE24866T1/en
Publication of EP0127155A1 publication Critical patent/EP0127155A1/en
Application granted granted Critical
Publication of EP0127155B1 publication Critical patent/EP0127155B1/en
Expired legal-status Critical Current

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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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/285—Securing closures on containers by deformation of the closure
    • B65B7/2857—Securing closures on containers by deformation of the closure and the container rim

Definitions

  • the invention relates to a method for closing a container with a lid, the former having an edge flange directed towards the outside of the container and the latter having a lid edge protruding beyond the edge flange, and the container and lid being made of plastically deformable material, preferably aluminum foil, the Container either with a lid placed on it, which is prefabricated by bending its lid edge downwards, or with a flat lid blank introduced above the container between an upper part and a lower part of a closing device, the lid edge of the flat lid blank assigned by a vertical relative movement of the upper part, horizontally displaceable frame elements and containers are bent in the direction of the container bottom, the bent cover edge is bent by horizontally displacing the frame elements under the edge flange and by vertical movement of the lower part up to the top is pressed quickly with the edge flange.
  • the invention further relates to an apparatus for performing the method described above.
  • a support plate is arranged between the upper and lower part, on which the container to be closed is placed with its bottom.
  • a slip ring on which the horizontally displaceable frame elements are provided, is moved into a position just below the edge flange, the edge of the cover of the cover, which is completely exposed on the top, being bent around the container edge flange in the direction of the container bottom. Then, by horizontally displacing the frame elements, the edge of the cover is bent, also without positive holding of the cover under the edge flange.
  • the support plate is lowered or the lower part is raised until the edge flange of the container, including the bent edge of the cover, rests on the edge-shaped pressure surface of the lower part.
  • the edge flange rests on the counter pressure surface of the upper part, the edge of the cover is pressed between this and the pressure surface of the lower part with the edge flange.
  • This closing process has considerable disadvantages. This is because it is carried out with an exposed lid, i.e. without positive mounting of the same on the upper side of the edge flange, which has a very disadvantageous effect, in particular when the filling material is lying too high.
  • the support of the container with its container bottom on the support plate requires the precise adjustment of the stroke of the frame elements in order to avoid pressing the container edge flange in the event of insufficient lowering of the frame elements or incorrect bending of the lid edge when the frame elements are lowered too far.
  • Another disadvantage is the greater design complexity of the closing device, which results from the use of the support plate and a drive and control mechanism for the lifting movements of the frame elements in addition to two separate drives that are already required for the vertical movements of the upper part and the lower part. Furthermore, longer changeover times result from the necessity to also change the support plate when changing the lower part in order to change to a container type with different base dimensions and to readjust the control mechanism for the lifting movements of the frame elements.
  • a device similar to the aforementioned is known with a support plate for receiving the container and an upper part and a lower part, both of which are designed to be vertically movable.
  • the upper part is lowered until a counter-pressure surface which is vertically movable within the upper part lies on the container or the lid.
  • the edge of the lid is bent downwards in the direction of the container bottom through the inner sides of the frame elements which are mounted on the upper part and are guided past them by lowering them.
  • the lowering movement of the upper part is stopped.
  • this is achieved in that the container introduced between the upper part and lower part is received by a supporting edge of the lower part on the underside of the edge flange at least in its inner edge area assigned to the container wall and with at least one part of the lid assigned to at least partial areas of the edge flange by vertical movement of the Lower part is brought from a lower zero position past the frame elements to an upper press position for contact with the upper part, the lid edge of the flat lid blank being bent by passing the frame elements and by horizontal displacement of the frame elements until support of an outer edge area of the edge flange including the according to partially bent lid edge area of the container is held in contact with the upper part, that then the edge flange from the support edge by vertical movement of the lower part past the frame elements in Direction to the lower zero position released and the edge of the lid is further bent by moving the frame elements into a front end position so that it moved again by pulling the frame elements back to a rear end position up to at least the upper pressing position, the container from the Frame elements taking over and still in contact with the upper part
  • the lid is held in contact with the upper part during the bending of its lid edge under the edge flange and is thereby prevented from displacements relative to the container.
  • the container is no longer supported on the container base but on its edge flange during the bending and bending of its lid edge, so that there is no need to take the container height into account in the lifting movements of the vertically moving parts.
  • the stroke always remains the same, which means that the changeover and the corresponding changeover times when changing to containers of different heights are no longer necessary. Even if the height dimensions of the containers are exceeded, no corrections to the stroke settings or stroke movements are required.
  • Container tolerances can be chosen larger, which results in the additional advantage of a lower cost burden.
  • the support edge serves both as a receptacle during the vertical bending of the cover edge and as a pressure surface during the pressing of the cover edge with the edge flange, the forces which occur when the edge of the cover is bent are absorbed by the support edge and not by the edge flange. Deformations in the edge flange cannot lead to incorrect bending as before, but are reshaped and compensated for by the supporting edge.
  • the correct bending of the edge of the lid required for a secure closure is promoted in that the supporting edge is lowered again after reaching the upper pressing position for the first time, in order to enable horizontal displacement of the frame elements as far as possible in the direction of the container wall.
  • the support wheel is moved upward again to press the lid edge.
  • the container can be closed even more reliably by pressing the edge of the lid with the edge flange by moving the lower part into a repressing position arranged above the upper press.
  • the process sequences can be accelerated in that the container edge flange is released from the supporting edge by moving the lower part past the frame elements into a central zero position arranged above the lower zero position.
  • the frame elements are fixed in the vertical direction and are designed as a receptacle for the container during the horizontal bending of the lid edge under the container flange, and in that the lower part has a supporting edge for at least the inner edge region of the edge flange assigned to the container wall or the associated lid edge, which supporting edge is designed in a double function for the entire closing process, with the exception of the process of the aforementioned horizontal bending of the lid edge as a receptacle for the container and as a pressure surface for pressing the lid edge with the edge flange.
  • the support plate known from the prior art as a receptacle for the container during the bending and bending of the lid edge under the edge flange, is omitted in the design simplification.
  • a further design simplification results from the elimination of the drive and control mechanism for the vertical movements of the frame elements or of the upper part during the bending and bending of the lid edge under the edge flange.
  • the supporting edge is preferably designed in such a way that it lies at least partially against the outer wall of the container. This results in a particularly precise lateral fixation of the container.
  • An advantageous development of the invention is. characterized in that the lower part in an upper pressing position for bending the edge of the lid and for applying at least a part of the lid surface associated with the supporting edge to the counter-pressure surface and from the upper pressing position towards the lower zero position for the flying takeover of the container and holding it in contact with the Upper part and for bending the edge of the lid through the frame elements and finally again in the upper pressing position with flying takeover of the container located in contact with the upper part and released by the frame elements for pressing the edge of the lid with the container flange.
  • the part is favorable to lower the part into a position above the upper pressing position. arranged arranged repressing position to be movable.
  • the lower part is advantageously designed to be movable from the upper pressing position to a middle zero position arranged above the lower zero position.
  • the lower part and the frame elements are moved by means of a common drive device. This creates the precondition for a forced control of the vertically and horizontally movable parts.
  • the drive device preferably has a toggle lever, one outer joint of which is connected to the lower part and the other outer joint of which is fixed, the toggle lever extending from a stretched position determining the upper pressing position in one direction to the respectively deflected position, the position determining the lower zero position and is movable in the other direction up to a deflected position determining the central zero position MN.
  • the supported outer joint of the toggle lever is preferably designed as an eccentric joint.
  • the positive control of the frame elements is achieved in a simple manner in that the movement of the toggle lever is transmitted to the frame elements by means of a lever arrangement.
  • Figure 1 shows a closing device according to the invention for closing a container 1 with a lid 2, both of which consist of a plastically deformable material, preferably of aluminum foil.
  • the container 1 has a container base 3, an adjoining container wall 4 and a container flange 5 which extends outward from the upper edge thereof and has a rolled edge 6.
  • the closing device comprises a frame with two supporting columns 7 and 8 arranged on opposite sides.
  • a fixed upper part 9 is attached to the upper area of the frame connecting the supporting columns.
  • a lower part 10 is arranged underneath this upper part and can be moved vertically by drive or guide columns 11 supported on the floor or on the lower part of the frame.
  • the lower part 10 is basket-shaped and has a circumferential wall 13 which extends upwards from the basket base 12 and serves as a supporting edge for the container 1.
  • the latter is inserted into the lower part 10 such that it rests with the inner edge region of a container flange 5 assigned to the container wall 4 of the upper side of the supporting edge 13.
  • the container wall preferably lies at least partially on the inside of the support edge 13 for the exact lateral fixing of the container 1.
  • the distance between the base 12 and the upper side of the support edge 13 also preferably corresponds to the maximum container height in order to avoid changing the lower part 10 when changing over to containers of different heights.
  • the upper region of the outside of the support edge 13 is designed to be slightly conical in the direction of the inner cavity of the lower part.
  • a counter pressure frame 14 having a counter pressure surface is interchangeably arranged on the upper part 9.
  • the external dimension of the counter-pressure frame 14 is larger than the external dimension of the lower part 10.
  • the area of the counterpressure frame 14 assigned to the support edge has an essentially hemispherical groove 17, in which, as shown on the left in FIG. 1, the upper part of the support edge 13 engages in the closed position.
  • the groove 17 is not completely filled by the support edge 13, so that a radially outer part of the groove 17 remains free for receiving the rolled edge 5 of the container 1.
  • FIG. 2 shows a top view of four frame elements 15, which describe an essentially rectangular area corresponding to the projection of the cavity of the lower part 10.
  • Each frame element 15 is in each case assigned to a corner of this surface, for this reason it is formed at right angles in the plan view and is displaceably mounted in the diagonal direction of this surface by means of longitudinal bearings 18.
  • a turntable 19 is arranged above the upper part 9, which sets in oscillating movements by a pendulum axis 20 which is arranged to be oscillating within the support column 7 becomes.
  • the turntable 19 is in turn connected in an articulated manner by means of four articulated connecting rod links 22 to slide rods 23 which are arranged within the longitudinal guides 18 and transmit their longitudinal movement to the edge elements 16.
  • FIG. 3 shows a drive device 24 common for the vertical movement of the lower part 10 and the horizontal movement of the edge elements 16. It essentially comprises a driven crank 25 which is articulated via a coupling rod 25 to the central joint 27 of a toggle lever 28.
  • the level of the toggle lever 28 extends in the direction of movement of the lower part 10.
  • the one outer joint 29 of this toggle lever 28 is articulated on the underside of the outer columns 11 of the lower part 10.
  • the second outer joint 30 facing away from the drive columns 11 is supported in an articulated manner on the frame of the closing device.
  • the outer joint 30 is designed as an eccentric joint.
  • a lever arrangement 31 is articulated on the lower knee of the toggle lever 28 and in a manner not shown on the pendulum axis 20 in order to transmit the movement of the toggle lever 28 to the pendulum axis 20.
  • the axis of rotation 34 of the crank 25 is connected to the eccentric axis 330 via an endless belt or chain drive 35, so that the eccentric axis makes one revolution during a cycle of the crank 25.
  • FIG. 4 shows the closing tools, ie the supporting edge 13, the counter-pressure frame 14 and one of the frame elements 15 in the open position of the closing device.
  • the frame element 16 has assumed the rear end position HE.
  • the supporting edge is in a lower zero position, not shown here.
  • the lid edge 32 is in contact with the frame element 15 which is advanced from its rear end position HE in the direction of the support edge 13 and is thereby bent downwards in the direction of the container bottom 3.
  • FIG. 6 shows the support edge 13 and the frame element 16 in a position moved further upwards or inwards.
  • the lid 2 is just in contact with the counter-pressure frame 14, the rolled edge 6 of the container flange 5 having penetrated so far into the channel 17 that it is located in a plane lying above the frame element 16.
  • the lid edge 32 is already bent vertically downwards.
  • the support edge 13 has been moved into an upper pressing position OP, the rolled edge 6 and the inner edge region of the container flange 5 assigned to the container wall 4 and the assigned part of the cover 2 lying against the counter-pressure frame 14 within the channel 17.
  • the middle section of the container flange 5 arranged between this inner edge region and the rolled edge and the associated part of the lid 2 are still at a distance from the inside of the senses 17.
  • the frame element 16 has already been advanced so far in the direction of the supporting edge 13 that it is already partly under the rolled edge 6 and has partially bent the cover 32.
  • Figure 8 shows the support edge 13 in a position below its upper pressing position OP. It is in a downward movement.
  • the rolled edge-6 and thus the container 1 are held by the frame element 16, which is pushed far below the rolled edge 6, in contact with the counter-pressure frame 14 within the channel 17.
  • the transfer of the rolled edge 6 from the supporting edge 13 to the frame element 16 was "on the fly".
  • FIG. 9 shows the frame element 16 pushed further towards the container 1.
  • the support edge 13 is lowered so far that its top is arranged in a plane below the frame element 15.
  • the lid edge 32 is bent further under the container flange 5.
  • the support edge 13 has reached a middle zero position MN, which is still arranged above its lower zero position UN.
  • the frame element 16 is in its front end position VE, in which the lid edge 32 is almost completely bent under the container flange 5 and rests on the container wall.
  • Figure 11 shows that the support edge 13 is in a renewed upward movement and the frame element 16 is again on the way to its rear end position HE.
  • the support edge 13 has reached a repressing position NP, which is arranged above the upper pressing position OP.
  • the bent-over edge of the lid 32 is placed on the underside of the container flange 5 and the "pre-closed" container flange, as it were, solidified in accordance with the stroke difference between the upper pressing position OP and the pressing position NP.
  • the container flange now lies essentially on the entire inner surface of the channel 17.
  • FIG. 14 shows the supporting edge 13 with the container flange 5 lying on it on the way down to the lower zero position UN or the open position of the closing device. This open position is shown in the real half of Figure 2; the container is already lifted out of the lower part 10 by means not shown.
  • the drive device 24 is used to carry out the cycle described above.
  • the crank 25 rotates.
  • the eccentric of the eccentric joint 30 rotates.
  • the movement of the crank 25 is transmitted through the coupling rod 26 and via the central joint 27 to the toggle lever 28.
  • the toggle lever 28 is in its first deflected position, which corresponds to the lower zero position UN of the lower part 10.
  • the toggle lever 28 has reached its extended position, the lower part 10 is in its upper pressing position OP.
  • the outer joint 29, as shown in broken lines in FIG. 3 has reached a position above that which corresponds to the aforementioned deflected position of the toggle lever 28.
  • the lower part 10 is thus in its central zero position HN.
  • FIG. 15 shows a modification of the toggle lever drive 26 of FIG. 3.
  • two pairs of toggle levers 40 and 41 are connected in series.
  • the two pairs of toggle levers are connected by a joint 42 which is guided vertically by a sleeve 43 which slides on a rod 44 fixed to the machine.
  • a coupling rod 46 engages on the joint 45 of the pair of toggle levers 41, said coupling rod 46 via a joint 47 with a rocker arm 48 is connected, which is pivotally mounted on the machine frame by means of a joint 49.
  • a roller 50 is rotatably attached to the rocker 46 and cooperates with an inner eccentric ring 51.
  • a coupling rod 53 acts on the joint 52 of the pair of toggle levers 40, which is connected via a joint 54 to a rocker arm 55 which is pivotably mounted on the machine frame by means of a joint 56.
  • a roller 57 is rotatably attached to the rocker 55 and cooperates with an eccentric disk 58.
  • the inner eccentric ring 51 rotates continuously together with the eccentric disk 56 about the common axis of rotation 59, the two toggle lever pairs 40 and 41 being brought into an extended position in which the lid edge is pressed together with the container flange.
  • the remaining parts of the closing device can be retained.
  • the drive of the frame elements can also be done separately from the drive of the lower part of the closing device. It is also possible to drive these parts of the closing device by means of pressure cylinders and to control these pressure cylinders by means of curves or via programs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
  • Dry Development In Electrophotography (AREA)
  • Closures For Containers (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

1. Method of closing a container (1) with a lid (2), where the former has a marginal flange (5) directed towards the outside of the container and the latter has a lid rim (32) projecting beyond the marginal flange (5), and container and lid consist of plastically deformable material, preferably aluminium foil, the container (1), either with a lid laid on top, which lid is prefabricated by having its lid rim (32) bent over downwardly, or with a flat lid blank positioned on top of the container, is positioned between an upper part (9) and a lower part (10) of a closure apparatus, the lid rim (32) of the flat lid blank is bent over towards the container bottom by a vertical relative movement of horizontally displaceable frame elements (16) associated with the upper part (9) and the container (1), the bent over lid rim (32) is bent over under the rim flange (5) by horizontal displacement of the frame elements (16) and is pressed together with the rim flange (5) by vertical movement of the lower part (10) up to the upper part (9), characterised in that the container (1) positioned between upper part (9) and lower part (10) is received by a supporting edge (13) of the lower part (10) at the underside of the rim flange (5) at least in its inner marginal region associated with the container walls (4) and is brought, with at least one part of the lid (2) associated with at least a part region of the rim flange (5) by vertical movement of the lower part (10), from a lower neutral position (UN) past the frame elements (16) up to an upper pressing position (OP) for bearing on the upper part (9), where in passing by the frame elements (16) the lid rim (32) of the flat lid blank is bent over, and by horizontal displacement of the frame elements (16) until support of an outer rim region of the marginal flange (5) including the correspondingly partly bent over lid rim region, the container (1) is maintained bearing on the upper part (9) in that then the marginal flange (5) is released from the supporting edge (13) by vertical movement of the lower part (10) past the frame elements (16) in the direction of the neutral position (UN), and the lid rim (32) is, by further displacement of the frame elements (16), bent over sufficiently into an extreme forward position so that it is bent over completely by the lower part (10) which, while the frame elements (16) are retracted into an extreme rear position (HE), is again moved at least into the upper pressing position (OP) where it takes the container (1) over from the frame elements (16) and continues to maintain it bearing against the upper part (9) and is pressed together with the marginal flange (5).

Description

Die Erfindung bezieht sich auf ein Verfahren zum Verschließen eines Behälters mit einem Deckel, wobei ersterer einen nach außerhalb des Behälters gerichteten Randflansch und letzterer einen über den Randflansch hinausragenden Deckelrand auf weist und Behälter und Deckel aus plastisch verformbarem Material, vorzugsweise Aluminiumfolie, bestehen, wobei der Behälter entweder mit einem aufgelegten Deckel, der durch Abbiegen seines Deckelrandes nach unten vorgefertigt ist, oder mit einem oberhalb des Behälters eingebrachten ebenen Deckelzuschnitt zwischen ein Oberteil und ein Unterteil einer Verschließvorrichtung eingebracht, der Deckelrand des ebenen Deckelzuschnitts durch eine vertikale Relativbewegung von dem Oberteil zugeordneten, horizontal verschiebbaren Rahmenelementen und Behälter in Richtung zum Behälterboden abgebogen, der abgebogene Deckel rand durch horizontales Verschieben der Rahmenelemente unter den Randflansch umgebogen und durch Vertikalbewegung des Unterteils bis zum Oberteil mit dem Randflansch verpreßt wird.The invention relates to a method for closing a container with a lid, the former having an edge flange directed towards the outside of the container and the latter having a lid edge protruding beyond the edge flange, and the container and lid being made of plastically deformable material, preferably aluminum foil, the Container either with a lid placed on it, which is prefabricated by bending its lid edge downwards, or with a flat lid blank introduced above the container between an upper part and a lower part of a closing device, the lid edge of the flat lid blank assigned by a vertical relative movement of the upper part, horizontally displaceable frame elements and containers are bent in the direction of the container bottom, the bent cover edge is bent by horizontally displacing the frame elements under the edge flange and by vertical movement of the lower part up to the top is pressed quickly with the edge flange.

Die Erfindung bezieht sich weiterhin auf eine Vorrichtung zum Durchführen des vorstehend beschriebenen Verfahrens.The invention further relates to an apparatus for performing the method described above.

Aus der DE-OS 31 24733 sind eine Vorrichtung und ein Verfahren der eingangs erwähnten Art bekannt.From DE-OS 31 24733 a device and a method of the type mentioned are known.

Als Aufnahme für den Behälter ist zwischen Ober- und Unterteil eine Tragplatte angeordnet, auf die der zu verschließende Behälter mit seinem Boden aufgesetzt ist. Zum Verschließen des Behälters wird ein Stülpring, an dem die horizontal verschiebbaren Rahmenelemente vorgesehen sind, bis in eine Position gerade unterhalb des Randf lansches verfahren, wobei der Deckelrand des oberseitig völlig freiliegenden Deckels um den Behälter-Randflansch in Richtung zum Behälterboden abgebogen wird. Sodann erfolgt durch horizontales Verschieben der Rahmenelemente das Umbiegen des Deckelrandes ebenfalls ohne positive Halterung des Deckels unter den Randflansch. Anschließend wird entweder die Tragplatte abgesenkt oder das Unterteil angehoben, bis der Randf lansch des Behälters einschließlich umgebogenen Deckelrandes auf der randförmigen Druckf läche des Unterteils aufliegt. Durch Anheben des Unterteils bis zur Anlage des Randf lansches an die Gegendruckfläche des Oberteils wird der Deckelrand zwischen dieser und der Druckf läche des Unterteils mit dem Randflansch verpreßt.As a receptacle for the container, a support plate is arranged between the upper and lower part, on which the container to be closed is placed with its bottom. To close the container, a slip ring, on which the horizontally displaceable frame elements are provided, is moved into a position just below the edge flange, the edge of the cover of the cover, which is completely exposed on the top, being bent around the container edge flange in the direction of the container bottom. Then, by horizontally displacing the frame elements, the edge of the cover is bent, also without positive holding of the cover under the edge flange. Then either the support plate is lowered or the lower part is raised until the edge flange of the container, including the bent edge of the cover, rests on the edge-shaped pressure surface of the lower part. By lifting the lower part until the edge flange rests on the counter pressure surface of the upper part, the edge of the cover is pressed between this and the pressure surface of the lower part with the edge flange.

Dieser Verschließvorgang weist erhebliche Nachteile auf. Er wird nämlich mit einem freiliegenden Deckel durchgeführt, d.h. ohne positive Halterung desselben an der Oberseite des Randflansches, was sich insbesondere bei überhöht liegendem Füllgut sehr nachteilig auswirkt. Die Abstützung des Behälters mit seinem Behälterboden an der Tragplatte erfordert die genaue Einstellung des Hubes der Rahmenelemente, um ein Verdrücken des Behälter-Randflansches bei ungenügendem Absenken der Rahmenelemente oder ein fehlerhaftes Umbiegen des Deckelrandes bei zu weitem Absenken der Rahmenelemente zu vermeiden.This closing process has considerable disadvantages. This is because it is carried out with an exposed lid, i.e. without positive mounting of the same on the upper side of the edge flange, which has a very disadvantageous effect, in particular when the filling material is lying too high. The support of the container with its container bottom on the support plate requires the precise adjustment of the stroke of the frame elements in order to avoid pressing the container edge flange in the event of insufficient lowering of the frame elements or incorrect bending of the lid edge when the frame elements are lowered too far.

Auch führen kleinere Deformationen der Behälter und hier insbesondere deren Randflansche durch beispielsweise Transportschäden, auch durch Überschreitungen des Abstandes zwischen Behälterboden und Behälter-Randflansch, zu fehlerhaftem Abbiegen, Umbiegen und Verpressen des Deckelrandes oder gar zur Zerstörung der Behälter.Smaller deformations of the containers and in particular their edge flanges, for example due to transport damage, also due to the distance between the container bottom and the container edge flange being exceeded, lead to incorrect bending, bending and pressing of the lid edge or even to the destruction of the containers.

Ein weiterer Nachteil besteht in dem größeren konstruktiven Aufwand der Verschließvorrichtung, der sich aus der Verwendung der Tragplatte und eines Antriebssowie Steuermechanismus für die Hubbewegungen der Rahmenelemente zusätzlich zu zwei bereits für die Vertikalbewegungen des Oberteils und des Unterteils erforderlichen getrennten Antrieben ergibt. Ferner resultieren größere Umrüstzeiten aus der Notwendigkeit, beim Wechsel des Unterteils zwecks Umstellung auf einen Behältertyp mit anderen Bodenabmessungen auch die Tragplatte mit auszuwechseln und den Steuermechanismus für die Hubbewegungen der Rahmenelemente neu einzustellen.Another disadvantage is the greater design complexity of the closing device, which results from the use of the support plate and a drive and control mechanism for the lifting movements of the frame elements in addition to two separate drives that are already required for the vertical movements of the upper part and the lower part. Furthermore, longer changeover times result from the necessity to also change the support plate when changing the lower part in order to change to a container type with different base dimensions and to readjust the control mechanism for the lifting movements of the frame elements.

Auch aus der DE-PS 25 11 218 ist eine Vorrichtung ähnlich der vorgenannten mit einer Tragplatte zur Aufnahme des Behälters sowie einem Oberteil und einem Unterteil bekannt, die beide vertikal bewegbar ausgebildet sind. Zum Durchführen des Verschließvorganges wird das Oberteil soweit abgesenkt, bis eine innerhalb des Oberteils vertikal bewegbar gelagerte Gegendruckfläche sich dem Behälter bzw. dem Deckel auflegt. Durch weiteres Absenken des Oberteils, wobei sein Abstand zur Gegendruckfläche verringert wird, erfolgt ein Abbiegen des Deckelrandes nach unten in Richtung zum Behälterboden durch die Innenseiten der am Oberteil gelagerten und durch dessen Absenken vorbeigeführten Rahmenelemente. Sobald der Abstand der Gegendruckfläche zum Oberteil auf Null verringert ist, wird die Absenkbewegung des Oberteils gestoppt. Nun beginnt eine Aufwärtsbewegung des Unterteils, welches mittels konischer Führungsflächen die ebenfalls konische Führungsflächen auf weisenden Rahmenelemente nach innen soweit verschiebt, bis der Deckelrand unter den Randflansch umgebogen ist. In diesem Augenblick trifft das Unterteil mit einer Druckfläche auf die Gegendruckfläche des Oberteils. wobei der dazwischenliegende Deckelrand und Randflansch miteinander verpreßt werden.From DE-PS 25 11 218 a device similar to the aforementioned is known with a support plate for receiving the container and an upper part and a lower part, both of which are designed to be vertically movable. In order to carry out the closing process, the upper part is lowered until a counter-pressure surface which is vertically movable within the upper part lies on the container or the lid. By further lowering the upper part, whereby its distance from the counter-pressure surface is reduced, the edge of the lid is bent downwards in the direction of the container bottom through the inner sides of the frame elements which are mounted on the upper part and are guided past them by lowering them. As soon as the distance of the counter pressure surface to the upper part is reduced to zero, the lowering movement of the upper part is stopped. Now an upward movement of the lower part begins, which by means of conical guide surfaces shifts the likewise conical guide surfaces on pointing frame elements inwards until the edge of the cover is bent under the edge flange. At this moment the lower part hits the counter pressure surface of the upper part with a pressure surface. whereby the intermediate lid edge and edge flange are pressed together.

Diese bekannte Vorrichtung und das damit durchgeführten Verfahren bringt zusätzlich zu den Nachteilen der vorerwähnten Vorrichtung die Schwierigkeit mit sich, daß sich Oberteil und Unterteil genau in der Ebene des Behälter-Randflansches treffen müssen. Infolgedessen müssen bei Behältern unterschiedlicher Höhen die jeweiligen Hübe des Unter- und des Oberteils, deren zeitliche Aufeinanderfolge oder deren Geschwindigkeiten neu eingestellt werden. Bei nicht ganz exakter Einstellung und Funktionsweise der Vorrichtung besteht auch die Gefahr, daß der Behälter durch die auf ihm aufsetzende Gegendruckfläche des Oberteils deformiert wird.This known device and the method carried out in addition to the disadvantages of the above-mentioned device Difficulty with the fact that the upper part and lower part must meet exactly in the plane of the container edge flange. As a result, the respective strokes of the lower and the upper part, their chronological sequence or their speeds must be readjusted for containers of different heights. If the device is not set and functioning exactly, there is also the danger that the container will be deformed by the counterpressure surface of the upper part placed on it.

Ein weiteres Verfahren und eine Vorrichtung zur Durchführung desselben sind auch aus der DE-PS 29 35479 bekannt. Hier ist im Unterschied zur vorstehend beschriebenen Vorrichtung das Unterteil stationär, die Tragplatte jedoch vertikal bewegbar ausgebildet. Durch Bewegung der letzteren und des Oberteils erfolgt das Umbiegen und Verpressen des Deckelrandes. Es ergeben sich hier im wesentlichen die gleichen Nachteile, wie vorstehend beschrieben. Insbesondere ungünstig ist, daß die Tragplatte keinen eigenen Antrieb aufweist, sondern durch das Oberteil, sobald dieses dem Behälter aufliegt, nach unten gedrückt wird. Die Kräfte sind hierbei vom Behälter aufzunehmen, wobei es zur Zerstörung desselben kommen kann. Ein zusätzlicher Nachteil ergibt sich daraus, daß bei dieser Vorrichtung eine noch größere Anzahl von Bauelementen als in der vorstehend beschriebenen Vorrichtung bei Umstellung auf einen anderen Behältertyp auszuwechseln ist.Another method and an apparatus for performing the same are also known from DE-PS 29 35479. In contrast to the device described above, the lower part is stationary, but the support plate is designed to be vertically movable. By moving the latter and the upper part, the edge of the lid is bent and pressed. Essentially the same disadvantages as described above arise here. It is particularly unfavorable that the support plate does not have its own drive, but is pressed down by the upper part as soon as it rests on the container. The forces must be absorbed by the container, which can destroy it. An additional disadvantage arises from the fact that with this device an even greater number of components than in the device described above has to be replaced when changing over to another type of container.

Es ist Aufgabe der Erfindung, ein Verfahren und eine Vorrichtung der eingangs erwähnten Art so weiterzubilden, daß eine größere Anpassungsfähigkeit an unterschiedliche Betriebsbedingungen, insbesondere unterschiedliche Behältertypen, erzielt wird und das Umrüsten der Vorrichtung leichter und schneller durchführbar ist.It is an object of the invention to develop a method and a device of the type mentioned at the outset in such a way that greater adaptability to different operating conditions, in particular different types of containers, is achieved and the device can be converted more easily and more quickly.

Dies wird bezüglich des Verfahrens dadurch ereicht, daß der zwischen Oberteil und Unterteil eingebrachte Behälter von einem Stützrand des Unterteils an der Unterseite des Randflansches zumindest in dessen der Behälterwandung zugeordneten inneren Randbereich aufgenommen und mit wenigstens einem zumindest Teilbereichen des Randflansches zugeordneten Teil des Deckels durch Vertikalbewegung des Unterteils von einer unteren Nullstellung vorbei an den Rahmenelementen bis zu einer oberen Preßstellung zur Anlage an das Oberteil gebracht wird, wobei durch Vorbeiführen an den Rahmenelementen der Deckelrand des ebenen Deckelzuschnitts abgebogen und durch horizontales Verschieben der Rahmenelemente bis zur Abstützung eines äußeren Randbereichs des Randflansches einschließlich des entsprechend teilweise umgebogenen Deckel randbereichs der Behälter in Anlage an das Oberteil gehalten wird, daß sodann der Randflansch vom Stützrand durch Vertikalbewegung des Unterteils an den Rahmenelementen vorbei in Richtung zur unteren Nullstellung freigegeben und der Deckel rand durch weiteres Verschieben der Rahmenelemente bis in eine vordere Endlage soweit umgebogen wird, daß er von dem unter Zurückziehen der Rahmenelemente bis in eine hintere Endlage erneut bis zumindest zur oberen Preß-Stellung bewegten, den Behälter von den Rahmenelementen übernehmenden und weiterhin in Anlage an das Oberteil haltenden Unterteil vollständig umgebogen und mit dem Randflansch verpreßt wird.With regard to the method, this is achieved in that the container introduced between the upper part and lower part is received by a supporting edge of the lower part on the underside of the edge flange at least in its inner edge area assigned to the container wall and with at least one part of the lid assigned to at least partial areas of the edge flange by vertical movement of the Lower part is brought from a lower zero position past the frame elements to an upper press position for contact with the upper part, the lid edge of the flat lid blank being bent by passing the frame elements and by horizontal displacement of the frame elements until support of an outer edge area of the edge flange including the according to partially bent lid edge area of the container is held in contact with the upper part, that then the edge flange from the support edge by vertical movement of the lower part past the frame elements in Direction to the lower zero position released and the edge of the lid is further bent by moving the frame elements into a front end position so that it moved again by pulling the frame elements back to a rear end position up to at least the upper pressing position, the container from the Frame elements taking over and still in contact with the upper part holding lower part is completely bent and pressed with the edge flange.

Der Deckel ist während des Umbiegens seines Deckelrandes unter den Randflansch in Anlage an das Oberteil gehalten und dadurch an Verschiebungen relativ zum Behälter gehindert.The lid is held in contact with the upper part during the bending of its lid edge under the edge flange and is thereby prevented from displacements relative to the container.

Der Behälter wird während des Ab- und Umbiegens seines Deckelrandes nicht mehr am Behälterboden sondern an seinem Randflansch abgestützt, so daß die Notwendigkeit entfällt, die Behälterhöhe in den Hubbewegungen der vertikal bewegten Teile zu berücksichtigen. Der Hub bleibt immer gleich, wodurch das Umrüsten und die entsprechenden Umrüstzeiten bei Umstellung auf Behälter unterschiedlicher Höhe entfallen. Auch bei Uberschreitungen der Höhenabmessungen der Behälter sind keine Korrekturen der Hubeinstellungen oder Hubbewegungen erforderlich. Behältertoleranzen können größer gewählt werden, woraus sich der zusätzliche Vorteil einer geringeren Kostenbelastung ergibt.The container is no longer supported on the container base but on its edge flange during the bending and bending of its lid edge, so that there is no need to take the container height into account in the lifting movements of the vertically moving parts. The stroke always remains the same, which means that the changeover and the corresponding changeover times when changing to containers of different heights are no longer necessary. Even if the height dimensions of the containers are exceeded, no corrections to the stroke settings or stroke movements are required. Container tolerances can be chosen larger, which results in the additional advantage of a lower cost burden.

Dadurch, daß der Stützrand sowohl als Aufnahme während des vertikalen Abbiegens des Deckelrandes als auch als Druckf läche während des Verpressens des Deckel randes mit dem Randf lansch dient, werden die Kräfte, die beim Abbiegen des Deckelrandes auftreten, vom Stützrand und nicht vom Randflansch aufgenommen. Deformationen im Randflansch können nicht wie bisher zu fehlerhaftem Abbiegen führen, sondern werden durch den Stützrand zurückgeformt und ausgeglichen.Characterized in that the support edge serves both as a receptacle during the vertical bending of the cover edge and as a pressure surface during the pressing of the cover edge with the edge flange, the forces which occur when the edge of the cover is bent are absorbed by the support edge and not by the edge flange. Deformations in the edge flange cannot lead to incorrect bending as before, but are reshaped and compensated for by the supporting edge.

Dadurch, daß lediglich das Unterteil vertikal bewegbar ist, entfällt die Abstimmung mit den Bewegungsabläufen des andernfalls erforderlichen Hubes des Oberteils bzw. der Rahmenelemente, wodurch sich eine höhere Genauigkeit des Verschließvorganges und ein konstant besserer und sicherer Behälterverschluß ergibt.The fact that only the lower part is vertically movable eliminates the need for coordination with the movements of the otherwise required stroke of the upper part or the frame elements, which results in a higher accuracy of the closing process and a constantly better and more secure container closure.

Das für einen sicheren Verschluß erforderliche einwandfreie Umbiegen des Deckelrandes wird dadurch gefördert, daß der Stützrand nach dem erstmaligen Erreichen der oberen Preßstellung wieder nach unten abgesenkt wird, um ein horizontales Verschieben der Rahmenelemente möglichst weit in Richtung zur Behälterwandung zu ermöglichen. Nach Beendigung des Umbiegens des Deckelrandes und Zurückziehen der Rahmenelemente erfolgt eine erneute Aufwärtsbewegung des Stützrades zum Verpressen des Deckelrandes. Erfindungsgemäß wird der in Anlage an das Oberteil befindliche Behälter bzw. dessen Randflansch während des Zeitraumes, in welchem der Stützrand sich vom Oberteil entfernt, von den Rahmenelementen weiterhin in Anlage an das Oberteil gehalten, wobei die Übergabe vom Stützrand auf die Rahmenelemente und zurück in "fliegender" Weise erfolgt.The correct bending of the edge of the lid required for a secure closure is promoted in that the supporting edge is lowered again after reaching the upper pressing position for the first time, in order to enable horizontal displacement of the frame elements as far as possible in the direction of the container wall. After the bending of the lid edge has ended and the frame elements have been pulled back, the support wheel is moved upward again to press the lid edge. According to the container located in contact with the upper part or its edge flange during the Period of time in which the support edge moves away from the upper part continues to be held by the frame elements in contact with the upper part, the transfer from the support edge to the frame elements and back taking place in a "flying" manner.

Bei Umstellung auf unterschiedliche Behältertypen mit beispielsweise größerer Fläche oder größeren Randflanschabmessungen ist lediglich das Auswechseln des Unterteils der Gegendruckfläche und der Rahmenelemente erforderlich. Auch hierdurch werden im Vergleich zum Stand der Technik die Umrüstzeiten verringert. Andert sich nur die Höhe der zu verschließenden Behälter, ist überhaupt keine Umrüstung der Vorrichtung erforderlich.When changing to different types of containers with, for example, a larger area or larger edge flange dimensions, it is only necessary to replace the lower part of the counter pressure surface and the frame elements. This also reduces the changeover times compared to the prior art. If only the height of the containers to be closed changes, no modification of the device is required at all.

Gemäß einer Weiterbildung der Erfindung kann der Behälter dadurch noch sicherer verschlossen werden, daß der Deckelrand mit dem Randflansch durch Verfahren des Unterteils bis in eine oberhalb der oberen Preßstettung angeordneten Nachpreß-Stellung verpreßt wird.According to a development of the invention, the container can be closed even more reliably by pressing the edge of the lid with the edge flange by moving the lower part into a repressing position arranged above the upper press.

Die Verfahrensabläufe können dadurch beschleunigt werden, daß der Behälter-Randflansch vom Stützrand durch Verfahren des Unterteils an den Rahmenelementen vorbei in eine oberhalb der unteren Nullstellung angeordnete mittlere Nullstellung freigegeben wird.The process sequences can be accelerated in that the container edge flange is released from the supporting edge by moving the lower part past the frame elements into a central zero position arranged above the lower zero position.

Die Aufgabe wird hinsichtlich der Vorrichtung dadurch gelöst, daß die Rahmenelemente in vertikaler Richtung feststehend und als Aufnahme für den Behälter während des horizontalen Umbiegens des Deckelrandes unter den Behälterflansch ausgebildet sind, und daß das Unterteil einen Stützrand für zumindest den der Behälterwandung zugeordneten inneren Randbereich des Randflansches bzw. des zugeordneten Deckelrandes aufweist, welcher Stützrand in Doppelfunktion für den gesamten Verschließvorgang mit Ausnahme des Vorganges des vorerwähnten horizontalen Umbiegens des Deckelrandes als Aufnahme für den Behälter und als Druckfläche zum Verpressen des Deckelrandes mit dem Randflansch ausgebildet ist.The object is achieved with respect to the device in that the frame elements are fixed in the vertical direction and are designed as a receptacle for the container during the horizontal bending of the lid edge under the container flange, and in that the lower part has a supporting edge for at least the inner edge region of the edge flange assigned to the container wall or the associated lid edge, which supporting edge is designed in a double function for the entire closing process, with the exception of the process of the aforementioned horizontal bending of the lid edge as a receptacle for the container and as a pressure surface for pressing the lid edge with the edge flange.

Aufgrund dieser Maßnahmen entfällt in Konstruktionsvereinfachung die aus dem Stand der Technik bekannte Tragplatte als Aufnahme für den Behälter während des Ab- und Umbiegens des Deckelrandes unter den Randflansch. Eine weitere Konstruktionsvereinfachung ergibt sich aus dem Wegfall des Antriebs und Steuermechanismus für die Vertikalbewegungen der Rahmenelemente bzw. des Oberteils während des Ab- und Umbiegens des Deckelrandes unter den Randflansch.Due to these measures, the support plate known from the prior art, as a receptacle for the container during the bending and bending of the lid edge under the edge flange, is omitted in the design simplification. A further design simplification results from the elimination of the drive and control mechanism for the vertical movements of the frame elements or of the upper part during the bending and bending of the lid edge under the edge flange.

Vorzugsweise wird der Stützrand derart ausgebildet, daß er zumindest teilweise der Außenwandung des Behälters anliegt. Hierdurch ergibt sich eine besonders genaue seitliche Fixierung des Behälters.The supporting edge is preferably designed in such a way that it lies at least partially against the outer wall of the container. This results in a particularly precise lateral fixation of the container.

Eine vorteilhafte Weiterbildung der Erfindung ist. dadurch gekennzeichnet, daß das Unterteil in eine obere Preßstellung zum Abbiegen des Deckelrandes und zum Anlegen wenigstens eines Teils der dem Stützrand zugeordneten Deckelfläche an die Gegendruckfläche und von der oberen Preßstellung in Richtung zur unteren Nullstellung zur fliegenden Übernahme des Behälters und Halterung desselben in Anlage an das Oberteil sowie zum Umbiegen des Deckelrandes durch die Rahmenelemente und schließlich erneut in die obere Preßstellung mit fliegender Übernahme des in Anlage an das Oberteil befindlichen und von den Bahmenelementen freigegebenen Behälters zum Verpressen des Deckelrandes mit dem Behälterflansch verfahrbar ausgebildet ist.An advantageous development of the invention is. characterized in that the lower part in an upper pressing position for bending the edge of the lid and for applying at least a part of the lid surface associated with the supporting edge to the counter-pressure surface and from the upper pressing position towards the lower zero position for the flying takeover of the container and holding it in contact with the Upper part and for bending the edge of the lid through the frame elements and finally again in the upper pressing position with flying takeover of the container located in contact with the upper part and released by the frame elements for pressing the edge of the lid with the container flange.

In diesem Zusammenhang ist es günstig, das Unterteil bis in eine oberhalb der oberen Preßstellung. angeordnete Nachpreßstellung verfahrbar auszubilden. Vorteilhafterweise ist das Unterteil von der oberen Preßstellung bis in eine oberhalb der unteren Nullstellung angeordneten mittleren Nullstellung verfahrbar ausgebildet.In this context, it is favorable to lower the part into a position above the upper pressing position. arranged arranged repressing position to be movable. The lower part is advantageously designed to be movable from the upper pressing position to a middle zero position arranged above the lower zero position.

Gemäß einer Weiterbildung der Erfindung werden das Unterteil und die Rahmenelemente mittels einer gemeinsamen Antriebseinrichtung bewegt. Dies schafft die Voraussetzung zu einer Zwangssteuerung der vertikal und der horizontal bewegbaren Teile.According to a development of the invention, the lower part and the frame elements are moved by means of a common drive device. This creates the precondition for a forced control of the vertically and horizontally movable parts.

Vorzugsweise weist die Antriebseinrichtung einen Kniehebel auf, dessen eines äußere Gelenk mit dem Unterteil verbunden und dessen anderes äußere Gelenkfixiert ist, wobei der Kniehebel von einer die obere Preßstellung bestimmenden gestreckten Lage in eine Richtung bis zur jeweils ausgelenkten Stellung, die untere Nullstellung bestimmenden-Lage und in die andere Richtung bis zu einer ausgelenkten, die mittlere Nullstellung MN bestimmenden Lage bewegbar ist.The drive device preferably has a toggle lever, one outer joint of which is connected to the lower part and the other outer joint of which is fixed, the toggle lever extending from a stretched position determining the upper pressing position in one direction to the respectively deflected position, the position determining the lower zero position and is movable in the other direction up to a deflected position determining the central zero position MN.

Hierbei ist es günstig; den Kniehebel durch eine umlaufende Kurbel anzutreiben und mittels einer Koppelstange mit dieser zu verbinden.It is cheap here; to drive the toggle lever by a rotating crank and to connect it with a coupling rod.

Zur Erzielung der oberen Preßstellung und der Nachpreßstellung ist vorzugsweise das abgestützte äußere Gelenk des Kniehebels als Exzentergelenk ausgebildet. Die Zwangssteuerung der Rahmenelemente wird in einfacher Weise dadurch erreicht, daß die Bewegung des Kniehebels mittels einer Hebelanordnung auf die Rahmenelemente übertragen wird.To achieve the upper pressing position and the re-pressing position, the supported outer joint of the toggle lever is preferably designed as an eccentric joint. The positive control of the frame elements is achieved in a simple manner in that the movement of the toggle lever is transmitted to the frame elements by means of a lever arrangement.

Nachstehend wird die Erfindung anhand eines Ausführungsbeispiels unter Bezugnahme auf die beigefügte Zeichnung näher beschrieben.The invention is described in more detail below using an exemplary embodiment with reference to the accompanying drawing.

Es zeigen:

  • Figur 1 eine Seitenansicht einer erfindungsgemäßen Schließvorrichtung mit der linken, geschnittenen Hälfte in der Schließ- und der rechten Hälfte in der Offenstellung,
  • Figur 2 eine teilgeschnittene Draufsicht der in Figur 1 dargestellten Vorrichtung,
  • Figur 3 eine Seitenansicht der Antriebseinrichtung der in Figur 1 und 2 dargestellten Vorrichtung,
  • Figuren 4 bis 14 verschiedene Stellungen der Schließwerkzeuge der in den Figuren 1 und 2 dargestellten Vorrichtung während eines Zyklus, und
  • Figur 15 eine Seitenansicht einer abgeänderten Antriebseinrichtung.
Show it:
  • FIG. 1 shows a side view of a locking device according to the invention with the left, cut half in the closed and the right half in the open position,
  • FIG. 2 shows a partially sectioned top view of the device shown in FIG. 1,
  • FIG. 3 shows a side view of the drive device of the device shown in FIGS. 1 and 2,
  • Figures 4 to 14 different positions of the Closing tools of the device shown in Figures 1 and 2 during a cycle, and
  • Figure 15 is a side view of a modified drive device.

Figur 1 zeigt eine erfindungsgemäße Schließvorrichtung zum Verschließen eines Behälters 1 mit einem Deckel 2, die beide aus einem plastisch verformbarem Material, vorzugsweise aus Aluminiumfolie, bestehen. Der Behälter 1 weist einen Behälterboden 3, eine sich daran anschließende Behälterwandung 4 und einen sich von deren oberen Rand nach außen erstreckenden Behälterflansch 5 mit einem Rollrand 6 auf.Figure 1 shows a closing device according to the invention for closing a container 1 with a lid 2, both of which consist of a plastically deformable material, preferably of aluminum foil. The container 1 has a container base 3, an adjoining container wall 4 and a container flange 5 which extends outward from the upper edge thereof and has a rolled edge 6.

Die folgende Beschreibung der Verschließvorrichtung ist auf die für das Verständnis wesentlichen Bauelemente beschränkt. Die Verschließvorrichtung umfaßt ein Rahmengestell mit zwei an einander gegenüberliegenden Seiten angeordneten Tragsäulen 7 und 8. An dem oberen Bereich des die Tragsäulen verbindenden Rahmengestells ist ein feststehendes Oberteil 9 angebracht. Unterhalb dieses Oberteils ist ein Unterteil 10 angeordnet, welches durch am Boden bzw. am unteren Teil des Rahmengestells abgestützte Antriebs- bzw. Führungssäulen 11 vertikal bewegbar ist.The following description of the closing device is limited to the components essential for understanding. The closing device comprises a frame with two supporting columns 7 and 8 arranged on opposite sides. A fixed upper part 9 is attached to the upper area of the frame connecting the supporting columns. A lower part 10 is arranged underneath this upper part and can be moved vertically by drive or guide columns 11 supported on the floor or on the lower part of the frame.

Der Unterteil 10 ist korbförmig ausgebildet und weist eine sich vom Korbboden 12 nach oben erstreckende, umlaufende Wandung 13 auf, die als Stützrand für den Behälter 1 dient. Letzterer ist erart in das Unterteil 10 eingesetzt, daß er mit dem der Behälterwandung 4 zugeordneten inneren Randbereich eines Behälterflansches 5 der Oberseite des Stützrandes 13 aufliegt. Vorzugsweise liegt die Behälterwandung zumindest teilweise der Innenseite des Stützrandes 13 zur genauen seitlichen Fixierung des Behälters 1 an. Ebenfallsvorzugsweise entspricht der Abstand zwischen dem Boden 12 und der Oberseite des Stützrandes 13 der maximalen Behälterhöhe, um ein Auswechseln des Unterteils 10 bei Umstellung auf Behälter unterschiedlicher Höhe zu vermeiden. Der obere Bereich der Außenseite des Stützrandes 13 ist in Richtung zum inneren Hohlraum des Unterteils leicht konisch verlaufend ausgebildet.The lower part 10 is basket-shaped and has a circumferential wall 13 which extends upwards from the basket base 12 and serves as a supporting edge for the container 1. The latter is inserted into the lower part 10 such that it rests with the inner edge region of a container flange 5 assigned to the container wall 4 of the upper side of the supporting edge 13. The container wall preferably lies at least partially on the inside of the support edge 13 for the exact lateral fixing of the container 1. The distance between the base 12 and the upper side of the support edge 13 also preferably corresponds to the maximum container height in order to avoid changing the lower part 10 when changing over to containers of different heights. The upper region of the outside of the support edge 13 is designed to be slightly conical in the direction of the inner cavity of the lower part.

Am Oberteil 9 ist ein eine Gegendruckfläche aufweisender Gegendruckrahmen 14 auswechselbar angeordnet. Das Außenmaß des Gegendruckrahmens 14 ist größer als das Außenmaß des Unterteils 10. An dem somit überstehenden Randabschnitt des Gegendruckrahmens 14 sind an dessen Unterseite horizontal verschiebbare Rahmenelemente 16 auswechselbar gelagert. Der dem Stützrand zugeordnete Bereich des Gegendruckrahmens 14 weist eine im wesentlichen halbkugelförmige Rinne 17 auf, in welcher wie links in Figur 1 gezeigt, der obere Teil des Stützrandes 13 in der Schließstellung eingreift. Dabei wird die Rinne 17 nicht voll vom Stützrand 13 ausgefüllt, so daß ein radial außen liegender Teil der Rinne 17 zur Aufnahme des Rollrandes 5 des Behälters 1 freibleibt.On the upper part 9, a counter pressure frame 14 having a counter pressure surface is interchangeably arranged. The external dimension of the counter-pressure frame 14 is larger than the external dimension of the lower part 10. On the underside of the counter-pressure frame 14, which thus protrudes, horizontally displaceable frame elements 16 are interchangeably mounted on its underside. The area of the counterpressure frame 14 assigned to the support edge has an essentially hemispherical groove 17, in which, as shown on the left in FIG. 1, the upper part of the support edge 13 engages in the closed position. The groove 17 is not completely filled by the support edge 13, so that a radially outer part of the groove 17 remains free for receiving the rolled edge 5 of the container 1.

Figur 2 zeigt in der Draufsicht vier Rahmenelemente 15, welche eine im wesentlichen rechteckige, der Projektion des Hohlraums des Unterteils 10 entsprechende Fläche umschreiben. Jedes Rahmenelement 15 ist jeweils einer Ecke dieser Fläche zugeordnet, aus diesem Grunde in der Draufsicht rechtwinklig ausgebildet und mittels Längslagern 18 in Diagonalrichtung dieser Fläche verschiebbar gelagert.FIG. 2 shows a top view of four frame elements 15, which describe an essentially rectangular area corresponding to the projection of the cavity of the lower part 10. Each frame element 15 is in each case assigned to a corner of this surface, for this reason it is formed at right angles in the plan view and is displaceably mounted in the diagonal direction of this surface by means of longitudinal bearings 18.

Zur Erzielung der Verschiebebewegung der Randelemente 16 von einer der Offenstellung der Verschließvorrichtung entsprechenden hinteren Endlage HE in eine der Schließstellung entsprechende vordere Endlage VE ist eine Drehscheibe 19 oberhalb des Oberteils 9 angeordnet, welche durch eine innerhalb der Tragsäule 7 pendelnd bewegbar angeordnete Pendelachse 20 in Pendelbewegungen versetzt wird. Zur Übertragung dieser Pendelbewegung ist eine Gelenkanordnung 21 einer Tragsäule 20 und an der Drehscheibe 19 angelenkt. Die Drehscheibe 19 ist ihrerseits mittels vier angelenkter Pleuellaschen 22 gelenkig mit Gleitstangen 23 verbunden, die innerhalb der Längsführungen 18 angeordnet sind und ihre Längsbewegung auf die Randelemente 16 übertragen.In order to achieve the displacement movement of the edge elements 16 from a rear end position HE corresponding to the open position of the closing device into a front end position VE corresponding to the closed position, a turntable 19 is arranged above the upper part 9, which sets in oscillating movements by a pendulum axis 20 which is arranged to be oscillating within the support column 7 becomes. To transmit this pendulum movement, a joint arrangement 21 of a support column 20 and articulated on the turntable 19. The turntable 19 is in turn connected in an articulated manner by means of four articulated connecting rod links 22 to slide rods 23 which are arranged within the longitudinal guides 18 and transmit their longitudinal movement to the edge elements 16.

Figur 3 zeigt eine für die Vertikalbewegung des Unterteils 10 und die horizontale Bewegung der Randelemente 16 gemeinsame Antriebseinrichtung 24. Sie umfaßt im wesentlichen eine angetriebene Kurbel 25, die über eine Koppelstange 25 an das Mittelgelenk 27 eines Kniehebels 28 angelenkt ist. Die Ebene des Kniehebels 28 erstreckt sich in der Bewegungsrichtung des Unterteils 10. Das eine äußere Gelenk 29 dieses Kniehebels 28 ist an der Unterseite der äußeren Säulen 11 des Unterteils 10 angelenkt. Das den Antriebssäulen 11 abgewandte zweite äußere Gelenk 30 ist am Rahmengestell der Verschließvorrichtung gelenkig abgestützt. Das äußere Gelenk 30 ist als Exzentergelenk ausgebildet. Eine Hebelanordnung 31 ist am unteren Knie des Kniehebels 28 und in nicht dargestellter weise an der Pendelachse 20 angelenkt, um die Bewegung des Kniehebels 28 auf die Pendelachse 20 zu übertragen.FIG. 3 shows a drive device 24 common for the vertical movement of the lower part 10 and the horizontal movement of the edge elements 16. It essentially comprises a driven crank 25 which is articulated via a coupling rod 25 to the central joint 27 of a toggle lever 28. The level of the toggle lever 28 extends in the direction of movement of the lower part 10. The one outer joint 29 of this toggle lever 28 is articulated on the underside of the outer columns 11 of the lower part 10. The second outer joint 30 facing away from the drive columns 11 is supported in an articulated manner on the frame of the closing device. The outer joint 30 is designed as an eccentric joint. A lever arrangement 31 is articulated on the lower knee of the toggle lever 28 and in a manner not shown on the pendulum axis 20 in order to transmit the movement of the toggle lever 28 to the pendulum axis 20.

Die Drehachse 34 der Kurbel 25 ist über einen Endlos-Riemen- oder Kettenantrieb 35 mit der Exzenterachse 330 verbunden, so daß die Exzenterachse während eines Zyklus der Kurbel 25 eine Umdrehung macht.The axis of rotation 34 of the crank 25 is connected to the eccentric axis 330 via an endless belt or chain drive 35, so that the eccentric axis makes one revolution during a cycle of the crank 25.

Im folgenden wird die Funktion der erfindungsgemäßen Vorrichtung kurz beschrieben.The function of the device according to the invention is briefly described below.

Figur 4 zeigt die Schließwerkzeuge, d. h. den Stützrand 13, den Gegendruckrahmen 14 und eines der Rahmenelemente 15 in Offenstellung der Verschließvorrichtung. Hierbei hat das Rahmenelement 16 die hintere Endlage HE eingenommen. Der Stützrand befindet sich in einer hier nicht dargestellten unteren Nullstellung.FIG. 4 shows the closing tools, ie the supporting edge 13, the counter-pressure frame 14 and one of the frame elements 15 in the open position of the closing device. Here, the frame element 16 has assumed the rear end position HE. The supporting edge is in a lower zero position, not shown here.

In der in Figur 5 gezeigten Stellung befindet sich der Deckelrand 32 in Anlage an das aus seiner hinteren Endlage HE in Richtung zum Stützrand 13 vorgeschobene Rahmenelement 15 und ist dadurch in Richtung zum Behälterboden 3 nach unten abgebogen.In the position shown in FIG. 5, the lid edge 32 is in contact with the frame element 15 which is advanced from its rear end position HE in the direction of the support edge 13 and is thereby bent downwards in the direction of the container bottom 3.

Figur 6 zeigt den Stützrand 13 und das Rahmenelement 16 einer weiter nach oben bzw. nach innen verfahrenen Stellung. Hierbei ist der Deckel 2 gerade in Anlage an den Gegendruckrahmen 14, wobei der Rollrand 6 des Behälterflansches 5 so weit in die Rinne 17 eingedrungen ist, daß er sich in einer oberhalb des Rahmenelementes 16 liegenden Ebene befindet. Der Deckelrand 32 ist schon senkrecht nach unten abgebogen.FIG. 6 shows the support edge 13 and the frame element 16 in a position moved further upwards or inwards. Here, the lid 2 is just in contact with the counter-pressure frame 14, the rolled edge 6 of the container flange 5 having penetrated so far into the channel 17 that it is located in a plane lying above the frame element 16. The lid edge 32 is already bent vertically downwards.

In Figur 7 ist der Stützrand 13 bis in eine obere Preßstellung OP verfahren, wobei der Rollrand 6 und der der Behälterwandung 4 zugeordnete innere Randbereich des Behälterflansches 5 und der zugeordnete Teil des Deckels 2 innerhalb der Rinne 17 dem Gegendruckrahmen 14 anliegen. Der zwischen diesem inneren Randbereich und dem Rollrand angeordnete Mittelabschnitt des Behälterflansches 5 und der zugeordnete Teil des Deckels 2 weisen noch einen Abstand zur Innenseite der Sinne 17 auf. Das Rahmenelement 16 ist bereits so weit in Richtung zum Stützrand 13 vorgeschoben, daß es sich bereits zum Teil unter dem Rollrand 6 befindet und den Deckel 32 zum Teil umgebogen hat.In FIG. 7, the support edge 13 has been moved into an upper pressing position OP, the rolled edge 6 and the inner edge region of the container flange 5 assigned to the container wall 4 and the assigned part of the cover 2 lying against the counter-pressure frame 14 within the channel 17. The middle section of the container flange 5 arranged between this inner edge region and the rolled edge and the associated part of the lid 2 are still at a distance from the inside of the senses 17. The frame element 16 has already been advanced so far in the direction of the supporting edge 13 that it is already partly under the rolled edge 6 and has partially bent the cover 32.

Figur 8 zeigt den Stützrand 13 in einer Stellung unterhalb seiner oberen Preßstellung OP. Er befindet sich in einer Abwärtsbewegung. Der Rollrand-6 und damit der Behälter 1 werden durch das Rahmenelement 16, welches entsprechend weit unter den Rollrand 6 geschoben ist, in Anlage an den Gegendruckrahmen 14 innerhalb der Rinne 17 gehalten. Die Übergabe des Rollrandes 6 vom Stützrand 13 an das Rahmenelement 16 erfolgte "fliegend".Figure 8 shows the support edge 13 in a position below its upper pressing position OP. It is in a downward movement. The rolled edge-6 and thus the container 1 are held by the frame element 16, which is pushed far below the rolled edge 6, in contact with the counter-pressure frame 14 within the channel 17. The transfer of the rolled edge 6 from the supporting edge 13 to the frame element 16 was "on the fly".

Figur 9 zeigt das Rahmenelement 16 noch weiter in Richtung zum Behälter 1 vorgeschoben. Zu diesem Zwecke ist der Stützrand 13 so weit abgesenkt, daß seine Oberseite in einer Ebene unterhalb des Rahmenelementes 15 angeordnet ist. Der Deckelrand 32 ist noch weiter unter den Behälterflansch 5 umgebogen.FIG. 9 shows the frame element 16 pushed further towards the container 1. For this purpose, the support edge 13 is lowered so far that its top is arranged in a plane below the frame element 15. The lid edge 32 is bent further under the container flange 5.

In Figur 10 hat der Stützrand 13 eine mittlere Nullstellung MN, die noch oberhalb seiner unteren Nullstellung UN angeordnet ist, erreicht. In diesem Moment befindet sich das Rahmenelement 16 in seiner vorderen Endlage VE, in welcher der Deckelrand 32 nahezu vollständig unter den Behälterflansch 5 umgebogen ist und an der Behälterwand aufliegt.In FIG. 10, the support edge 13 has reached a middle zero position MN, which is still arranged above its lower zero position UN. At this moment, the frame element 16 is in its front end position VE, in which the lid edge 32 is almost completely bent under the container flange 5 and rests on the container wall.

Figur 11 zeigt, daß der Stützrand 13 sich in einer erneuten Aufwärtsbewegung befindet und das Rahmenelement 16 wieder auf dem Weg in seine hintere Endlage HE ist.Figure 11 shows that the support edge 13 is in a renewed upward movement and the frame element 16 is again on the way to its rear end position HE.

In Figur 12 haben sich der Stützrand 13 und das Rahmenelement 16 so weit bewegt, daß die "fliegende" Übergabe des Behälterflansches 5 vom Rahmenelement 16 an den Stützrand 13 kurz bevorsteht.In FIG. 12, the support edge 13 and the frame element 16 have moved so far that the "flying" transfer of the container flange 5 from the frame element 16 to the support edge 13 is imminent.

In Figur 13 hat der Stützrand 13 eine Nachpreßstellung NP, die oberhalb der oberen Preßstellung OP angeordnet ist, erreicht. Hierbei ist der umgebogene Deckelrand 32 an die Unterseite des Behälterflansches 5 angelegt und der sozusagen "vorverschlossene" Behälterflansch entsprechend der Hubdifferenz zwischen der oberen Preßstellung OP und der Nachpreßstellung NP endgültig verfestigt. Der Behälterflansch liegt nun im wesentlichen der gesamten Innenfläche der Rinne 17 an.In Figure 13, the support edge 13 has reached a repressing position NP, which is arranged above the upper pressing position OP. Here, the bent-over edge of the lid 32 is placed on the underside of the container flange 5 and the "pre-closed" container flange, as it were, solidified in accordance with the stroke difference between the upper pressing position OP and the pressing position NP. The container flange now lies essentially on the entire inner surface of the channel 17.

Figur 14 zeigt den Stützrand 13 mit aufliegendem Behälterflansch 5 auf dem Weg nach unten in die untere Nullstellung UN, bzw. Offenstellung der Schließvorrichtung. Diese Offenstellung ist in der echten Hälfte der Figur 2 dargestellt; der Behälter ist bereits durch nicht dargestellte Mittel aus dem Unterteil 10 herausgehoben.FIG. 14 shows the supporting edge 13 with the container flange 5 lying on it on the way down to the lower zero position UN or the open position of the closing device. This open position is shown in the real half of Figure 2; the container is already lifted out of the lower part 10 by means not shown.

Zur Durchführung des oben beschriebenen Zyklus wird die Antriebseinrichtung 24 benutzt. Die Kurbel 25 dreht sich. Gleichfalls dreht sich der Exzenter des Exzentergelenkes 30. Die Bewegung der Kurbel 25 wird durch die Koppelstange 26 und über das Mittelgelenk 27 auf den Kniehebel 28 übertragen. In Figur 3 befindet sich der Kniehebel 28 in seiner ersten ausgelenkten Stellung, welcher der unteren Nullstellung UN des Unterteils 10 entspricht. Hat der Kniehebel 28 seine gestreckte Stellung erreicht, befindet sich das Unterteil 10 in seiner oberen Preßstellung OP. In seiner-zweiten ausgelenkten Stellung hat das äußere Gelenk 29, wie in Figur 3 mit gestrichelten Linien dargestellt, eine Lage oberhalb derjenigen erreicht, die der vorerwähnten ausgelenkten Stellung des Kniehebels 28 entspricht. Somit befindet sich das Unterteil 10 in seiner mittleren Nullstellung HN. - Diese Höhendifferenz wird dadurch erreicht, daß der Kniehebel, nachdem er seine gestreckte Stellung zur Erreichung der oberen Preßstellung OP überfahren hat, er nur so weit wie nötig angelenkt wird, d. h. bis der nötige Freiraum für die Bewegung der Rahmenelemente nach innen, sowie für den bis zur Behälterwandung 4 umgebogenen Deckelrand 32 erreicht ist.The drive device 24 is used to carry out the cycle described above. The crank 25 rotates. Likewise, the eccentric of the eccentric joint 30 rotates. The movement of the crank 25 is transmitted through the coupling rod 26 and via the central joint 27 to the toggle lever 28. In FIG. 3, the toggle lever 28 is in its first deflected position, which corresponds to the lower zero position UN of the lower part 10. When the toggle lever 28 has reached its extended position, the lower part 10 is in its upper pressing position OP. In its second deflected position, the outer joint 29, as shown in broken lines in FIG. 3, has reached a position above that which corresponds to the aforementioned deflected position of the toggle lever 28. The lower part 10 is thus in its central zero position HN. - This difference in height is achieved in that the toggle lever, after it has passed its extended position to reach the upper pressing position OP, is articulated only as far as necessary, i. H. until the necessary space for the movement of the frame elements inwards and for the lid edge 32 bent up to the container wall 4 is reached.

Während der weiteren Drehung der Kurbel 25 erreicht der Kniehebel 28 erneut eine gestreckte Stellung, die dadurch, daß der Exzenter des Exzentergelenkes 30 inzwischen seine oberste Stellung eingenommen hat, der Nachpreßstellung des Unterteils 11 entspricht.During the further rotation of the crank 25, the toggle lever 28 again reaches an extended position which, since the eccentric of the eccentric joint 30 has now assumed its uppermost position, corresponds to the repressing position of the lower part 11.

In der Figur 15 ist eine Abwandlung des Kniehebelantriebs 26 der Figur 3 gezeigt.FIG. 15 shows a modification of the toggle lever drive 26 of FIG. 3.

Bei dieser Abwandlung sind zwei Kniehebelpaare 40 und 41 hintereinander geschaltet. Die beiden Kniehebelpaare sind durch ein Gelenk 42 verbunden, das vertikal geführt ist durch eine Hülse 43, die auf einer maschinenfesten Stange 44 gleitet. Am Gelenk 45 des Kniehebelpaares 41 greift eine Koppelstange 46 an, die über ein Gelenk 47 mit einer Schwinge 48 verbunden ist, die mittels eines Gelenkes 49 am Maschinenrahmen schwenkbar gelagert ist. An der Schwinge 46 ist eine Rolle 50 drehbar angebracht, die mit einem Innen-Exzenterring 51 zusammenwirkt.In this modification, two pairs of toggle levers 40 and 41 are connected in series. The two pairs of toggle levers are connected by a joint 42 which is guided vertically by a sleeve 43 which slides on a rod 44 fixed to the machine. A coupling rod 46 engages on the joint 45 of the pair of toggle levers 41, said coupling rod 46 via a joint 47 with a rocker arm 48 is connected, which is pivotally mounted on the machine frame by means of a joint 49. A roller 50 is rotatably attached to the rocker 46 and cooperates with an inner eccentric ring 51.

Am Gelenk 52 des Kniehebelpaares 40 greift eine Koppelstange 53 an, die über ein Gelenk 54 mit einer Schwinge 55 verbunden ist, die mittels eines Gelenks 56 am Maschinenrahmen schwenkbar gelagert ist. An der Schwinge 55 ist eine Rolle 57 drehbar angebracht, die mit einer Exzenterscheibe 58 zusammenwirkt.A coupling rod 53 acts on the joint 52 of the pair of toggle levers 40, which is connected via a joint 54 to a rocker arm 55 which is pivotably mounted on the machine frame by means of a joint 56. A roller 57 is rotatably attached to the rocker 55 and cooperates with an eccentric disk 58.

Der Innen-Exzenterring 51 dreht sich zusammen mit der Exzenterscheibe 56 kontinuierlich um die gemeinsame Drehachse 59, wobei die beiden Kniehebelpaare 40 und 41 in eine Strecklage gebracht werden in welcher das Verpressen des Deckelrandes mit dem Behälterflansch erfolgt. Die übrigen Teile der Verschließeinrichtung können beibehalten werden.The inner eccentric ring 51 rotates continuously together with the eccentric disk 56 about the common axis of rotation 59, the two toggle lever pairs 40 and 41 being brought into an extended position in which the lid edge is pressed together with the container flange. The remaining parts of the closing device can be retained.

Der Antrieb der Rahmenelemente kann im übrigen auch getrennt vom Antrieb des Unterteils der Verschließvorrichtung erfolgen. So ist es auch möglich, diese Teile der Verschließvorrichtung durch Druckzylinder anzutreiben und diese Druckzylinder durch Kurven oder über Programme zu steuern.The drive of the frame elements can also be done separately from the drive of the lower part of the closing device. It is also possible to drive these parts of the closing device by means of pressure cylinders and to control these pressure cylinders by means of curves or via programs.

Claims (16)

1. Method of closing a container (1) with a lid (2), where the former has a marginal flange (5) directed towards the outside of the container and the latter has a lid rim (32) projecting beyond the marginal flange (5), and container and lid consist of plastically deformable material, preferably aluminium foil, the container (1), either with a lid laid on top, which lid is prefabricated by having its lid rim (32) bent over downwardly, or with a flat lid blank positioned on top of the container, is positioned between an upper part (9) and a lower part (10) of a closure apparatus, the lid rim (32) of the flat lid blank is bent over towards the container bottom by a vertical relative movement of horizontally displaceable frame elements (16) associated with the upper part (9) and the container (1), the bent over lid rim (32) is bent over under the rim flange (5) by horizontal displacement of the frame elements (16) and is pressed together with the rim flange (5) by vertical movement of the lower part (10) up to the upper part (9), characterised in that the container (1) positioned between upper part (9) and lower part (10) is received by a supporting edge (13) of the lower part (10) at the underside of the rim flange (5) at least in its inner marginal region associated with the container walls (4) and is brought, with at least one part of the lid (2) associated with at least a part region of the rim flange (5) by vertical movement of the lower part (10), from a lower neutral position (UN) past the frame elements (16) up to an upper pressing position (OP) for bearing on the upper part (9), where in passing by the frame elements (16) the lid rim (32) of the flat lid blank is bent over, and by horizontal displacement of the frame elements (16) until support of an outer rim region of the marginal flange (5) including the correspondingly partly bent over lid rim region, the container (1) is maintained bearing on the upper part (9) in that then the marginal flange (5) is released from the supporting edge (13) by vertical movement of the lower part (10) past the frame elements (16) in the direction of the neutral position (UN), and the lid rim (32) is, by further displacement of the frame elements (16), bent over sufficiently into an extreme forward position so that it is bent over completely by the lower part (10) which, while the frame elements (16) are retracted into an extreme rear position (HE), is again moved at least into the upper pressing position (OP) where it takes the container (1) over from the frame elements (16) and continues to maintain it bearing against the upper part (9) and is pressed together with the marginal flange (5).
2. Method according to claim 1, characterised in that the lid rim (32) is pressed together with the container flange (5) by the lower part (10) moving into a further pressing position (NP) located above the upper pressing position (OP).
3. Method according to claim 1 or 2, characterised in that the container flange (5) is released from the supporting edge (13) by the lower part moving past the frame elements (16) into a midway neutral position (MN) located above the lower neutral position (MN).
4. Apparatus for closing a container (1) with a lid (2), where the former has a marginal flange (5) directed towards the outside of the container and the latter has a lid rim (32) projecting beyond the marginal flange (5), and container and lid consist of plastically deformable material, preferably aluminium foil, with a vertically movable lower part (10) and, fixed in a vertical direction, an upper part (9), with, below the upper part (9), a housing for the container, including the laid on lid or positioned lid blank, horizontally displaceable frame elements (16) associated with the upper part (9), for bending the lid rim (32) over or downwards and over under the marginal flange (5), and with a thrust face arranged on the lower part (10) for pressing the lid rim (32) together with the marginal flange (5) in conjunction with a mating thrust face arranged on the upper part (9) for carrying out the method according to claim 1, characterised in that the frame elements (16) are fixed in a vertical direction and are constructed as the housing for the container (1) during the horizontal bending over of the lid rim (32) under the marginal flange (5), and in that the lower part (10) comprises a supporting edge (13) for at least the inner marginal region of the marginal flange (5) or of the associated lid rim (32), which is . associated with the container walls (4), which supporting edge (13) is constructed to have a dual function for the entire closing process with the exception of the process of the aforementioned horizontal bending over of the lid rim (32) under the marginal flange (5), as housing for the container (1), and further as thrust face for pressing the bent over lid rim (32) together with the marginal flange (53)
5. Apparatus according to claim 4, characterised in that the supporting edge (13) is constructed so that it bears at least partly on the outside walls of the container (1).
6. Apparatus according to claim 4 or 5, characterised in that the lower part (10) is constructed to be movable from a lower neutral position (UN) into an upper pressing position (OP) for bending over the lid rim (32) and for applying at least a part of the lid surface associated with the supporting edge (13) against the mating thrust face (14) and from the upper pressing position (OP) in the direction of the lower neutral position (UN) for transient takeover of the container (1) and to maintain the latter bearing against the upper part (9) as well as for the bending over of the lid rim (32) by the frame elements and finally once more into the upper pressing position (OP) with a transient takeover of the container (1) which is bearing on the upper part (9) and which is released by the frame elements (16), so that the lid rim (32) can be pressed together with the container flange (5).
7. Apparatus according to at least one of claims 4 to 6, characterised in that the lower part (10) is constructed to be movable into a further pressing position (NP) above the upper pressing position (OP).
8. Apparatus according to at least one of claims 4 to 7, characterised in that the lower part (10) is constructed to be movable from the upper pressing position (OP) into a midway neutral position (MN) located above the lower neutral position (UN).
9. Apparatus according to at least one of claims 4 to 8, characterised in that the lower part (10) and the frame elements (16) are moved by a common drive means (24).
10. Apparatus according to claim 9, characterised in that the drive means comprises a knee lever (28) of which an outer joint (29) is connected to the lower part (10, 11) while the other outer joint (30) is fixed, and in that the knee lever (28) can be moved from an extended position which determines the upper pressing position (OP) in a direction as far as the relative deflected position determining the lower neutral position (UN) and in the other direction as far as a deflected position which determines the midway neutral position (MN).
11. Apparatus according to claim 10, characterised in that the knee lever (28) is driven by a rotating crank (25) to which it is connected by a coupling rod (26).
12. Apparatus according to claim 11, characterised in that in the extended position of the knee lever (28) the crank (25) encloses an angle other than 90° with an imaginary connecting line between the pivot joint (34) of the crank (25) and the middle joint (27) of the knee lever (28).
13. Apparatus according to at least one of claims 10 to 12, characterised in that the supported outer joint (30) of the knee lever (28) is constructed as an eccentric joint.
14. Apparatus according to one of claims 10 to 13, characterised in that the movement of the knee lever (28) is transmitted to the frame elements (16) by means of a joint and lever arrangement (21,31).
15. Apparatus according to claim 10, characterised in that the drive means comprise two serially disposed pairs of knee levers (40 and 41) connected by a joint (42) guided for vertical displacement by a sleeve (43) sliding on a rod (44).
16. Apparatus according to claim 15, characterised in that the two pairs of knee levers (40 and 41) are in each case driven by a coupling rod (46, 53) engaging with the knee joint (45, 52), in that each coupling rod (46, 53) cooperates with a curved track (51, 58) through a rocker arm (48, 55).
EP84105983A 1983-05-27 1984-05-25 Method and device for closing a container with a cover, which both consist of a plastically deformable material Expired EP0127155B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84105983T ATE24866T1 (en) 1983-05-27 1984-05-25 METHOD AND DEVICE FOR CLOSING A CONTAINER WITH A LID, BOTH OF WHICH ARE MADE OF PLASTICLY DEFORMABLE MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3319323 1983-05-27
DE19833319323 DE3319323A1 (en) 1983-05-27 1983-05-27 METHOD AND DEVICE FOR CLOSING A CONTAINER WITH A LID, WHICH BOTH ARE MADE OF PLASTICALLY DEFORMABLE MATERIAL

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EP0127155A1 EP0127155A1 (en) 1984-12-05
EP0127155B1 true EP0127155B1 (en) 1987-01-14

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EP (1) EP0127155B1 (en)
AT (1) ATE24866T1 (en)
DE (2) DE3319323A1 (en)
DK (1) DK155182C (en)
NO (1) NO162552C (en)

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US7499319B2 (en) 2006-03-03 2009-03-03 Sandisk Corporation Read operation for non-volatile storage with compensation for coupling
US7499326B2 (en) 2006-04-12 2009-03-03 Sandisk Corporation Apparatus for reducing the impact of program disturb
US7848144B2 (en) 2008-06-16 2010-12-07 Sandisk Corporation Reverse order page writing in flash memories
EP2574558A1 (en) * 2011-09-30 2013-04-03 Crown Packaging Technology, Inc Process for closing metal cans

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2511218A1 (en) * 1975-03-14 1976-09-23 Hunter Douglas International DEVICE FOR CLOSING A CONTAINER PROVIDED WITH A HORIZONTAL EDGE STRIP WITH A LID
DE2935479A1 (en) * 1979-09-01 1981-03-12 HD-Ekco N.V., Genk DEVICE FOR CLOSING A CONTAINER WITH A LID MADE FROM PLASTICALLY DEFORMABLE MATERIAL.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704628A (en) * 1955-03-22 stanton
DE3124733A1 (en) * 1981-06-24 1983-01-20 Gerd 5992 Nachrodt-Wiblingwerde Wachsmuth Closing device for disposable containers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2511218A1 (en) * 1975-03-14 1976-09-23 Hunter Douglas International DEVICE FOR CLOSING A CONTAINER PROVIDED WITH A HORIZONTAL EDGE STRIP WITH A LID
DE2935479A1 (en) * 1979-09-01 1981-03-12 HD-Ekco N.V., Genk DEVICE FOR CLOSING A CONTAINER WITH A LID MADE FROM PLASTICALLY DEFORMABLE MATERIAL.

Also Published As

Publication number Publication date
EP0127155A1 (en) 1984-12-05
DK155182C (en) 1989-07-31
DK155182B (en) 1989-02-27
NO162552B (en) 1989-10-09
NO162552C (en) 1990-01-17
DK253684D0 (en) 1984-05-23
NO842108L (en) 1984-11-28
DE3462004D1 (en) 1987-02-19
DE3319323A1 (en) 1984-11-29
DK253684A (en) 1984-11-28
ATE24866T1 (en) 1987-01-15

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