DE2246779C3 - Box with cover membrane and process for their manufacture - Google Patents
Box with cover membrane and process for their manufactureInfo
- Publication number
- DE2246779C3 DE2246779C3 DE722246779A DE2246779A DE2246779C3 DE 2246779 C3 DE2246779 C3 DE 2246779C3 DE 722246779 A DE722246779 A DE 722246779A DE 2246779 A DE2246779 A DE 2246779A DE 2246779 C3 DE2246779 C3 DE 2246779C3
- Authority
- DE
- Germany
- Prior art keywords
- bead
- cover membrane
- free end
- membrane
- pressed
- 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
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/30—Folding the circumferential seam
- B21D51/34—Folding the circumferential seam by pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
- B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
- B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0006—Upper closure
- B65D2251/0018—Upper closure of the 43-type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0068—Lower closure
- B65D2251/0093—Membrane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00064—Shape of the outer periphery
- B65D2543/00074—Shape of the outer periphery curved
- B65D2543/00092—Shape of the outer periphery curved circular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00277—Metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
- B65D2543/00527—NO contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00611—Profiles
- B65D2543/0062—Groove or hollow bead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00675—Periphery concerned
- B65D2543/00694—Segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00722—Profiles
- B65D2543/0075—Rolled edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00787—Periphery concerned
- B65D2543/00796—Totality
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Packages (AREA)
- Closures For Containers (AREA)
Description
Die Erfindung betrifft eine Dose mit einer Abdeckmembran, die durch in den Dosenkörper geformte Falze gehalten ist, deren einer durch einen zusammengepreßten, ringförmigen, die Abdeckmembran tragenden Wulst und deren anderer durch das nach innen gegen die Oberseite des Wulstes gedrückte freie Ende des Dosenkörpers gebildet ist, wobei die Dose mit einem Seitenfalz aus sich überlappenden Materialrändern' versehen ist. Die Erfindung betrifft ferner ein Verfahren zur Herstellung einer derartigen Dose.The invention relates to a can with a cover membrane which is formed by folds formed in the can body is held, one of which is supported by a compressed, annular, the cover membrane Bead and their others by the inwardly pressed against the top of the bead free end of the Can body is formed, the can with a side fold of overlapping material edges' is provided. The invention also relates to a method for producing such a can.
Bei bekannten Dosen der gattungsgemäßen Art steht nach der Bildung des Wulstes das überlappende Material des miteingefalzten Seitenfalzes über die Oberfläche des Wulstes vor, da man bislang besondere Maßnahmen, die dies verhindern könnten, nicht vorgesehen hat. Dies bedeutet aber, daß die Abdeckmeinbran, die auf den Wulst aufgelegt wird, in dieser Zone nicht mehr absolut dicht aufliegt, was insbesondere für feuchtigkeitsempfindliche Güter, die in der Dose aufzunehmen sind, nachteilig ist.In known cans of the generic type, the overlapping one stands after the formation of the bead Material of the folded side fold over the surface of the bead, as one has so far been special Has not provided measures to prevent this. But this means that the covering membrane, which is placed on the bead no longer rests absolutely tightly in this zone, which in particular for moisture-sensitive goods that are to be contained in the can, is disadvantageous.
Bei einer bekannten Dose der gattungsgemäßen Art (US· PS 33 58 876) versucht man insoweit Abhilfe zu schaffen, als der Wulst zum Inneren der Dose hin schräg nach oben vorsteht, so daß sich an seinem Grund auf seiner Oberseite eine Art kleiner Rinne bildet, die mit einer besonderen Abdichtungsmasse gefüllt wird, um Unebenheiten, wie sie sich beispielsweise durch die vorspringenden Seitenfalzmateriallagen ergeben, auszugleichen. Die Aufbringung einer derartigen Masse erschwert und verteuert die Herstellung der Dose erheblich, da die Handhabung und Einbringung derartiger Massen problematisch ist, insbesondere im Hinblick auf die erforderliche gleichmäßige Verteilung der Masse. Darüber hinaus kommt es dabei häufig zu ίο den Betriebsablauf störenden Werkzeugverschmutzungen. In a known can of the generic type (US · PS 33 58 876) one tries to remedy this create when the bead protrudes obliquely upwards towards the inside of the can, so that at its base its upper side forms a kind of small channel that is filled with a special sealing compound To compensate for unevennesses, such as those that result from the protruding side seam material layers. The application of such a mass makes the production of the can difficult and expensive considerable, since the handling and introduction of such masses is problematic, especially in the With regard to the required uniform distribution of the mass. In addition, it often occurs in the process ίο soiling of tools that interferes with the operational process.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Dose der gattungsgemäßen Art sowie ein Herstellungsverfahren der gattungsgemäßen Art is dahingehend auszugestalten, daß die Abdeckmembran bei einfacher Herstellungsweise mit einfachen Mitteln absolut dicht und gegen ein unbeabsichtigtes Beschädigen des Abdeckmembranverschlusses gesichert angeordnet istThe object of the present invention is to provide a can of the generic type and also a manufacturing method of the generic type is to be designed in such a way that the cover membrane in the case of a simple production method with simple means, absolutely tight and against unintentional damage of the cover membrane closure is arranged secured
Die erfindungsgemäßen Lösungen bezüglich der Dose und des entsprechenden Herstellungsverfahrens ergeben sich aus den kennzeichnenden Teilen der Ansprüche 1 und 2.The solutions according to the invention with regard to the can and the corresponding manufacturing process result from the characterizing parts of claims 1 and 2.
Durch die Unterformung der Materiallagen des Seitenfalzes unter den Wulst hat dieser Wulst oberseitig eine durchgehend glatte, ebene Auflagefläche für die Abdeckmembran, so daß diese rundum dicht angepreßt werden kann, insbesondere auch im Bereich des Seitenfalzes. In Verbindung damit bewirkt die Einbindung der äußeren Randabschnitte der Membran in die Blechfalzung des oberen Falzes eine absolut dichte, faltenfreie Anpressung der Membran auf den Wulst, wobei die Membran nicht unbeabsichtigt aus der Blechfalzung herauszuziehen ist und auch Faltenbildungen in der Membran bei der Einfalzung in das Blechmaterial nicht auftreten können. Andererseits läßt sich bei dieser Art der Einbindung der Abdeckmembran in die Blechfalzung der Membranverschluß besonders leicht öffnen, da die feste Halterung der Abdeckmembran die zur Öffnung erforderliche Zerreißung der Membran erleichtert und es nicht anstelle der Zerreißung zu einer unkontrollierten Herausziehung eines Teiles der Membran aus der Einfalzung kommt.Due to the under-molding of the material layers of the side fold under the bead, this bead has the top a continuously smooth, even support surface for the cover membrane so that it is pressed tightly all around can be, especially in the area of the side fold. In connection with this, the involvement causes the outer edge sections of the membrane in the sheet metal fold of the upper fold an absolutely tight, Wrinkle-free pressing of the membrane onto the bead, whereby the membrane is not accidentally pulled out of the Sheet metal fold is to be pulled out and also folds in the membrane when folding into the Sheet metal material can not occur. On the other hand, with this type of integration of the cover membrane Open the membrane fastener particularly easily in the sheet metal fold, as the cover membrane is held firmly in place facilitates the rupture of the membrane required to open it and not in place of the Tearing results in an uncontrolled pulling out of part of the membrane from the fold.
Ein Ausführungsbeispiel des Erfindungsgegenstandes wird nachstehend unter Bezugnahme auf die Zeichnung beschrieben.An exemplary embodiment of the subject matter of the invention is described below with reference to the drawing described.
Es zeigtIt shows
F i g. 1 eine Dose in Teilschnittdarstellung,F i g. 1 a can in a partial sectional view,
F i g. 2 eine diagrammartige Darstellung der Verfahrensschritte zur Herstellung der Dose nach Fig. 1,F i g. 2 shows a diagrammatic representation of the method steps for producing the can according to FIG. 1,
F i g. 3 einen Teilquerschnitt durch den bei der Herstellung der Dose eingesetzten Dorn mit Darstellung des entsprechenden gefertigten Dosenteiles,F i g. 3 shows a partial cross-section through the mandrel used in the manufacture of the can of the corresponding manufactured socket part,
Fig.4 einen Teillängsschnitt durch den Dorn mit Darstellung des untergeformten Seitenfalzes,4 shows a partial longitudinal section through the mandrel showing the under-formed side fold,
F i g. 5 eine schematische Darstellung einer Vorrichtung zur Montage der Abdeckmembran an dem Dosenkörper,F i g. 5 is a schematic representation of a device for mounting the cover membrane on the Can body,
F i g. 6 eine Ansicht der Vorrichtung nach F i g. 5 gemäß Pfeil A der F i g. 5.F i g. 6 shows a view of the device according to FIG. 5 according to arrow A of FIG. 5.
Wie aus Fi g. 1 ersichtlich, hat der Dosenkörper 1 an seinem oberen Ende einen Membranverschluß, der eine Abdeckmembran 2 beinhaltet, die beispielsweise aus Papier, Metallfolie, Kunststoffolie oder einem entspreh5 chend zusammengesetzten Schichtmaterial zweier oder mehrerer der vorgenannten Stoffe besteht. Die Abdeckmembran 2 erstreckt sich quer über die entsprechende Öffnung des Dosenkörpers 1. Sie liegtAs shown in Fig. 1, the can body has 1 on its upper end a membrane closure which includes a cover membrane 2, for example from Paper, metal foil, plastic film or a correspondingly composed layer material of two or consists of several of the aforementioned substances. The cover membrane 2 extends across the corresponding opening of the can body 1. It lies
auf der Oberseite eines Wulstes 21 auf, der sich aus der Zusammendrückung eines ringförmig eingedrückten Abschnittes 17 ergibt, wobei zum Doseninneren hin die umgebogene Rundung 26 liegton the top of a bead 21, which results from the compression of an annularly indented Section 17 results, with the bent rounding 26 lying towards the inside of the can
Die Abdeckmembran 2 ist mit einem äußeren Randbereich 11 am ganzen Umfang hakenförmig in einen weiteren, in den Dosenkörper 1 geformten Falz eingebunden, der aus dem nach innen gegen die Oberseite des Wulstes 21 gedrückten fre-en Ends des Dosenkörpers gebildet ist, und zwar einerseits dem Abschniü 4 und andererseits der davon nochmals abgebogenen Umbiegung 27, die die freie Endkante 25 des Dosenkörpers 1 an ihrem Ende aufweist, welche Endkante somit unzugänglich verdeckt liegtThe cover membrane 2 is hook-shaped with an outer edge region 11 over its entire circumference another, formed in the can body 1 fold incorporated, which from the inward against the Upper side of the bead 21 pressed fre-en end of the can body is formed, on the one hand the Section 4 and, on the other hand, the bend 27 which is again bent away from it and which forms the free end edge 25 of the can body 1 at its end, which end edge is thus inaccessible covered
Die Dose ist durch einen Deckel 7 zu verschließen, der einen Dichtring 8 aufweist und am freien Ende seines den Dosenkörper übergreifenden Randsteges einen Innenwulst 9 aufweist, der über aus dem Dosenkörper 1 geformte Noppen 10 gedrückt werden kann.The can is to be closed by a lid 7 which has a sealing ring 8 and at the free end its edge web crossed over the can body has an inner bead 9, which over from the Can body 1 shaped knobs 10 can be pressed.
Der Dosenkörper 1 hat ferner einen Seitenfalz 24 (s. F i g. 3 und 4) aus überlappend liegenden Materiallagen.The can body 1 also has a side fold 24 (see FIGS. 3 and 4) made of overlapping layers of material.
Der untere Bereich des Dosenkörpers 1 wird durch einen Boden geschlossen, der in einen Flansch 16 (s. F i g. 2) eingefalzt werden kann.The lower area of the can body 1 is closed by a base which is inserted into a flange 16 (see Fig. F i g. 2) can be folded in.
Der Dosenkörper 1 wird durch eine Körperformmaschine 12 (s. Fi g. 5) als Zylinder hergestellt und gelangt von einem Dornteil 13 auf einen weiteren Dorn 14, der über einen Drehtisch 15 bewegbar ist, der in verschiedenen aufeinanderfolgenden Stellungen indexiert werden kann, wobei in diesen Stellunger; die verschiedenen Arbeitsgänge am Dosenkörper vollführt werden, wozu auch auf die schematische Darstellung der F i g. 2 verwiesen wird. Ausgehend von dem zylindrischen Dosenkörper 1 wird in der Stellung B zunächst der Flansch 16 geformt, in den später der Dosenboden eingefalzt wird. In dieser Stellung können auch die Noppen 10 gebildet werden. In der Stellung C wird ein ringförmiger Abschnitt 17 über ein entsprechendes Werkzeug in den Dosenkörper in dessen oberen Bereich hineingedrückt.The can body 1 is produced as a cylinder by a body molding machine 12 (see FIG. 5) and passes from a mandrel part 13 to a further mandrel 14, which can be moved via a rotary table 15 which can be indexed in various successive positions, in this positioner; the various operations are carried out on the can body, including reference to the schematic representation of FIG. 2 is referenced. Starting from the cylindrical can body 1, the flange 16 is first formed in position B , into which the can bottom is later crimped. The knobs 10 can also be formed in this position. In position C , an annular section 17 is pressed into the can body in its upper region using a corresponding tool.
In der Stellung D wird der ringförmige Abschnitt 17 zu dem Wulst 21 flach zusammengepreßtIn the position D , the annular section 17 is compressed flat to form the bead 21
In der Stellung E wird eine Abdsckmembran 2 aus einem Materialstreifen 22 ausgeschnitten und so geformt, daß ein äußerer Randabschnitt 11 nach oben vorstehend vorhanden ist. Ir. dieser Form wird die Abdeckmembran auf den Wulst 21 aufgelegtIn the position E , a cover membrane 2 is cut out of a material strip 22 and shaped so that an outer edge portion 11 is present protruding upwards. Ir. In this form, the cover membrane is placed on the bead 21
In der Stellung F geschieht eine erste Umbiegung des freien Endstückes des Dosenkörpers 1 mit einer ersten Klemmung, bei dem die Umbiegung 27 gebildet und auf die Unterseite des Randabschnittes 11 der Abdeckmembran 2 gelegt wird. Zugleich erfolgt eine Umlegung in Richtung auf den Wulst 21 zu.In the position F, the first bending of the takes place free end piece of the can body 1 with a first clamp, in which the bend 27 is formed and on the underside of the edge portion 11 of the cover membrane 2 is placed. At the same time there is a shift in the direction of the bead 21.
In der Stellung G erfolgt ein zweiter Klemmvorgang, bei welchem der obere, aus den Abschnitten 4 und 27 gebildete Falz mit dem hakenförmig eingebundenen Randabschnitt 11 der Abdeckmembran 2 flach oben auf den Wulst 21 unter Zwischenlegung des hier befindlichen Bereiches der Abdeckmembran 2 gedrückt wird.In position G , a second clamping process takes place, in which the upper fold formed from sections 4 and 27 with the hook-shaped edge section 11 of the cover membrane 2 is pressed flat on top of the bead 21 with the interposition of the area of the cover membrane 2.
Die Dorne 14 sind mit einem sich in ihrer Achsrichtung erstreckenden Schlitz 23 (s. Fi g. 3, 5, 6) versehen. Der Schlitz 23 dient der Aufnahme der Materiallagen des Seitenfalzes 24 des Dosenkörpers 1. wenn der Dosenkörper auf den Dorn gestecht wird. Darüber hinaus hat der Dorn 14 ausgehend vom oberen Ende des Schlitzes 23 einen weiteren, sich radial in der Stirnfläche des Domes erstreckenden Schlitz 23Λ welcher es ermöglicht, bei der Bildung des ringförmigen Abschnitts 17 und des Wulstes 21 das hier dann mehrfach liegende Material des Seitenfalzes 24 auf die Unterseite des ringförmigen Abschnitts 17 und damit auf die Unterseite des Wulstes 21 zu formen, so daß dem Wulst 21 für die Auflage der Abdeckmernbran 2 eine durchgehend glatte, ebene Oberfläche, gerade im Bereich des Seitenfalzes 24, gegeben werden kann. Dies ist aus Fig.4 ersichtlich, die die Aufnahme der verschiedenen Materiallagen des Seitenfalzes 24 bei der Bildung des Wulstes 21 zeigt, wie sie in dem Schlitz 23Λ aufgenommen sind. Aus Gründen der Vereinfachung sind die weiteren, auf der anderen Seite der Abdeckmembran 2 liegenden Materiallagen des Dosenkörpers 1 in F i g. 4 nicht mit dargestellt.The mandrels 14 are provided with a slot 23 extending in their axial direction (see Figs. 3, 5, 6) Mistake. The slot 23 serves to receive the material layers of the side fold 24 of the can body 1. when the can body is stabbed on the mandrel. In addition, the mandrel 14, starting from the upper At the end of the slot 23 another slot 23Λ extending radially in the end face of the dome which makes it possible in the formation of the annular section 17 and the bead 21 here then multiple lying material of the side fold 24 on the underside of the annular portion 17 and thus to form on the underside of the bead 21, so that the bead 21 for the support of the cover 2 a continuously smooth, flat surface, especially in the area of the side fold 24, can be given. this can be seen from Figure 4, the inclusion of the various material layers of the side fold 24 in the Formation of the bead 21 shows how they are received in the slot 23Λ. For the sake of simplicity are the other material layers of the can body lying on the other side of the cover membrane 2 1 in FIG. 4 not shown.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4491971A GB1361415A (en) | 1971-09-27 | 1971-09-27 | Cans |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2246779A1 DE2246779A1 (en) | 1973-04-05 |
DE2246779B2 DE2246779B2 (en) | 1978-07-06 |
DE2246779C3 true DE2246779C3 (en) | 1979-03-01 |
Family
ID=10435246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE722246779A Expired DE2246779C3 (en) | 1971-09-27 | 1972-09-23 | Box with cover membrane and process for their manufacture |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE789355A (en) |
CH (1) | CH542670A (en) |
DE (1) | DE2246779C3 (en) |
DK (1) | DK143787C (en) |
FR (1) | FR2154624B1 (en) |
GB (1) | GB1361415A (en) |
IE (1) | IE38055B1 (en) |
NL (1) | NL7212641A (en) |
ZA (1) | ZA726368B (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7503926A (en) * | 1975-04-02 | 1976-10-05 | Thomassen & Drijver | BUSROMP EQUIPPED WITH A SIDEWAY PROJECTING FLANGE. |
CH643502A5 (en) * | 1980-03-25 | 1984-06-15 | Alusuisse | METAL CAN WITH MEMBRANE CLOSURE. |
GB2156770B (en) * | 1984-03-20 | 1987-10-21 | Lancaster Russam & Company Lim | Containers |
ES8506212A1 (en) * | 1984-08-28 | 1985-07-01 | Planas Pedragosa Pedro | Apparatus for forming metal containers |
GB2211131B (en) * | 1987-10-20 | 1991-08-07 | Courtaulds Films & Packaging | Polymeric films |
DE4007381A1 (en) * | 1990-03-08 | 1991-09-12 | Schmalbach Lubeca | DOUBLE-FOLDED SEALABLE, TWO- OR THREE-PIECE CANNED TIN, AND METHOD FOR THEIR PRODUCTION |
FR2693431B1 (en) * | 1992-07-09 | 1994-09-30 | Cmb Packaging Sa | Metal box with screw cover for a product packaged in the presence of neutral gases. |
DE4345097C2 (en) * | 1993-12-31 | 1997-02-20 | Alcan Gmbh | Push-in lid for a composite material can and method of making the lid |
EP0919482A1 (en) * | 1997-11-27 | 1999-06-02 | Nihon Seikan Kabushiki Kaisha | Metallic can and method of manufacture of same |
AU737661B2 (en) * | 1997-11-27 | 2001-08-23 | Nihon Seikan Kabushiki Kaisha | Metallic can and method of manufacture of same, and can cover with integral scraper |
EP2248731A1 (en) * | 2009-05-07 | 2010-11-10 | Crown Packaging Technology, Inc | Container with clamped seal |
GB2536265B (en) * | 2015-03-11 | 2018-01-24 | Crown Packaging Technology Inc | Ringless metal cans |
-
0
- BE BE789355D patent/BE789355A/xx not_active IP Right Cessation
-
1971
- 1971-09-27 GB GB4491971A patent/GB1361415A/en not_active Expired
-
1972
- 1972-09-07 IE IE1219/72A patent/IE38055B1/en unknown
- 1972-09-18 NL NL7212641A patent/NL7212641A/xx active Search and Examination
- 1972-09-18 ZA ZA726368A patent/ZA726368B/en unknown
- 1972-09-23 DE DE722246779A patent/DE2246779C3/en not_active Expired
- 1972-09-26 DK DK475472A patent/DK143787C/en active
- 1972-09-26 CH CH1399972A patent/CH542670A/en not_active IP Right Cessation
- 1972-09-27 FR FR7234116A patent/FR2154624B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IE38055L (en) | 1973-03-27 |
DE2246779B2 (en) | 1978-07-06 |
DK143787B (en) | 1981-10-12 |
CH542670A (en) | 1973-10-15 |
DK143787C (en) | 1982-03-29 |
GB1361415A (en) | 1974-07-24 |
FR2154624A1 (en) | 1973-05-11 |
IE38055B1 (en) | 1977-12-21 |
DE2246779A1 (en) | 1973-04-05 |
ZA726368B (en) | 1973-07-25 |
NL7212641A (en) | 1973-03-29 |
BE789355A (en) | 1973-03-27 |
FR2154624B1 (en) | 1977-12-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |