EP1044792A2 - Method and apparatus for compressing of single-use cans - Google Patents

Method and apparatus for compressing of single-use cans Download PDF

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Publication number
EP1044792A2
EP1044792A2 EP00106680A EP00106680A EP1044792A2 EP 1044792 A2 EP1044792 A2 EP 1044792A2 EP 00106680 A EP00106680 A EP 00106680A EP 00106680 A EP00106680 A EP 00106680A EP 1044792 A2 EP1044792 A2 EP 1044792A2
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EP
European Patent Office
Prior art keywords
cans
compressing
compact
cup
mold
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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.)
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Application number
EP00106680A
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German (de)
French (fr)
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EP1044792A3 (en
Inventor
Georg Emil Scheller
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Individual
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Individual
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Publication of EP1044792A2 publication Critical patent/EP1044792A2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
    • B30B9/321—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for consolidating empty containers, e.g. cans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3021—Press rams

Definitions

  • the invention relates to a method and an apparatus for Compressing used single-use cans and in particular cans, which consist of tinplate or aluminum, as well as one of such a can molded compact.
  • Drinks are often offered in single-use cans made from Tinplate, aluminum or plastic (PET) exist. Although are such cans disposable cans that are not refilled after use However, their material can be recycled be recycled.
  • When the cans are disposed of in garbage cans or shops take-back units take up a disproportionate amount of space claim that is lost in shops as a sales area. In addition, there are high transport costs.
  • the invention has for its object a method and to provide a device to by a new way of compressing economical recycling of used cans to realize.
  • the cans are made by axial pressure deformed that part of the can jacket to form a Bending edge continuously into another part of the can jacket is pushed in such that a stackable cup-like Compact is created.
  • This is a controlled and defined one Deformation of the can into a double-walled compact.
  • This box is by no means flattened, with an accordion-like irregular deformations would arise, but part of the can jacket is in the remaining part of the Can casing pressed in.
  • the wall surfaces of the Can jacket placed tightly and largely wrinkle-free so that a double-walled cup-like compact with the least possible Air pockets exist.
  • Such compacts can be stacked one inside the other and the stacks can in turn placed in a container to make a larger one Keep or transport a lot of pressed cans. In in any case there is a much higher packing density under Avoidance of air pockets than with random compression of cans.
  • the invention brings significant savings in storage and Transport space, energy and time and manpower.
  • Another advantage is that by the continuous orderly deformation of all outer surfaces of the previous box are also accessible with the compact. It doesn't a that in a compact two sections of the outer surface cover each other. When the compacts in a pyrolysis furnace processed to print and other contaminants removing by heat ensures that the heat actually reaches all of the earlier surfaces of the can.
  • the invention is particularly suitable for use in return points disposable cans or for domestic use.
  • a corresponding device can in the simplest case be a manually operated hand press. Alternatively, you can also be operated by a motor.
  • the invention contemplates compressing the can within one Preform, which is the shape of a cone, a cylinder or of a rotational hyperboloid.
  • the Press mold a slightly conical hollow shape that is stackable for molding Mug is suitable.
  • the deformation is done with the help a ram that is inserted into the mold.
  • the ram is a mechanically movable one Press ram with a preferably curved press surface.
  • a stamp can also be a hydraulically or pneumatically expandable Bellows can be used.
  • the method according to the invention is particularly suitable for Disposable cans made of metal, for example cans made of Tinplate or aluminum.
  • cans made of Tinplate or aluminum With tin cans, the compacts entered into a melting furnace without pretreatment.
  • the compacts of aluminum cans require pretreatment through pyrolysis. For this, the compacts from the Stack out isolated so that all parts of the surface are in be subjected to an even heat treatment.
  • the invention further relates to one by compressing one Disposable can made of compact from cup-shaped shape with double wall.
  • the compact is through one end Bending edge limited, the head end and the bottom end of the Can face the cup bottom at the other end of the Form compacts.
  • the invention can also be used for plastic cans.
  • can is too wide in the context of the invention understand. It generally includes elongated containers with one Bottom at one end and a spout at the other end, including bottles and bottle-like structures.
  • a can 10 is shown, which is is a beverage can. This can is empty. It is in one Mold 11 used, which has an elongated cavity 12, which picks up the can along its length. The one The end of the cavity 12 is closed by a base plate 13. From the opposite end, a ram 14 in the cavity 12 are inserted.
  • the can 10 is placed overhead, i.e. against the bottom wall 13 head end 15, which Bottom end 16 facing the ram 14.
  • the headboard 15 is tapered and has a beaded edge.
  • the Bottom end 16 is reinforced compared to the can jacket 17, i.e. it has about twice the wall thickness.
  • the bottom wall 18 at the bottom end 16 is curved towards the inside of the can. In this curvature, the curved press surface 19 of the ram 14 introduced. This causes the can 10 to relate to the ram 14 and the die 11 centered.
  • the mold cavity 12 has a conical shape, whereby it faces the bottom plate 13 tapered. It surrounds the can 10 over the entire length away with a lateral distance, this distance from above decreases downwards. There is a constriction at the lower end 20, in which the head end 15 of the can is centered.
  • the bottom plate 13 contains a concave bulge 21 which during the head of the can of the pressing process. Further drainage openings 22 are provided through which the Can of escaping liquid can run out.
  • the compact 25 shown in Fig. 3 is formed.
  • This The compact has an essentially rotationally symmetrical shape Cup, the height of which is about half the length of the previous box 10 corresponds.
  • the wall of the compact 25 is double-walled, i.e. it consists of the outer wall part 26 and the inner wall part 27. Both wall parts are by the circumferential Bending edge 23 connected and they are full and close to each other.
  • the compact 25 tapers towards the cup bottom 28, at which the former head end 15 and bottom end 16 of the can are located.
  • the compact 25 shown in Fig. 3 in the mold is removed from the mold or ejected and then with other similar compacts to one Stack 29 assembled.
  • the stack is placed in a sleeve 30 used.
  • Several stacks 29 can be placed in a container 31, e.g. a box, can be set to store the compacts and to transport.
  • the container 31 have the compacts a high material density so that it can be used for storage and transportation take up little space. Because the compacts in every stack 29 only lie loosely together, they can be used for a subsequent Treatment can be separated again easily.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Collection And Transfer (AREA)
  • Processing Of Solid Wastes (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

The crusher unit consists of a receptacle in the form of a truncated cone, cylinder or hyperboloid of revolution. One side o the receptacle is open and the other closed by a sealing plate which may be flat, convex or concave. The top part of a punch is in t form of a hyperboloid of revolution. The receptacle and punch can be heated.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Komprimieren gebrauchter Einwegdosen und insbesondere von Dosen, die aus Weißblech oder Alumium bestehen, sowie einen aus einer solchen Dose geformten Preßling.The invention relates to a method and an apparatus for Compressing used single-use cans and in particular cans, which consist of tinplate or aluminum, as well as one of such a can molded compact.

Getränke werden vielfach in Einwegdosen angeboten, die aus Weißblech, Alumium oder Kunststoff (PET) bestehen. Zwar sind derartige Dosen Einwegdosen, die nach Gebrauch nicht wieder gefüllt werden, jedoch kann ihr Material im Wege des Recycling wiederverwertet werden. Die heutige Technologie sieht unter anderem ein Komprimieren von gebrauchten Dosen durch Zerquetschen zwischen zwei rotierenden Walzen oder zwischen zwei Platten vor. Dabei werden die gebrauchten Dosen auf etwa 25 % ihres ursprünglichen Volumens kompaktiert. Anschließend werden die Dosen in einen Container geworfen, in dem sie regelose Positionen einnehmen. Die zerquetschen Dosen beanspruchen bei dieser Art der Lagerung etwa 50 % des ursprünglichen Dosenvolumens. Bei Entsorgung der Dosen in Mülltonnen oder Geschäften nehmen Rücknahmeaggregate unverhältnismäßig viel Platz in Anspruch, der bei Geschäften als Verkaufsfläche verlorengeht. Außerdem entstehen hohe Transportkosten.Drinks are often offered in single-use cans made from Tinplate, aluminum or plastic (PET) exist. Although are such cans disposable cans that are not refilled after use However, their material can be recycled be recycled. Today's technology looks below among other things, compressing used cans by crushing them between two rotating rollers or between two Plates in front. The used cans are reduced to about 25% of their original volume. Then be the cans thrown into a container in which they are riotous positions take in. The crushed cans claim this type of storage is about 50% of the original can volume. When the cans are disposed of in garbage cans or shops take-back units take up a disproportionate amount of space claim that is lost in shops as a sales area. In addition, there are high transport costs.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung anzugeben, um durch eine neue Art des Komprimierens ein wirtschaftliches Recycling von gebrauchten Dosen zu realisieren.The invention has for its object a method and to provide a device to by a new way of compressing economical recycling of used cans to realize.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den Merkmalen des Verfahrens nach Anspruch 1 bzw. mit den Merkmalen der Vorrichtung nach Anspruch 5.This object is achieved according to the invention with the features of the method according to claim 1 or with the features of Device according to claim 5.

Erfindungsgemäß werden die Dosen durch axialen Druck derart verformt, dass ein Teil des Dosenmantels unter Bildung eines Biegerandes fortlaufend in einen anderen Teil des Dosenmantels hineingedrückt wird, derart, dass ein stapelbarer becherartiger Preßling entsteht. Hierbei erfolgt eine kontrollierte und definierte Deformierung der Dose zu einem doppelwandigen Preßling. Diese Dose wird keineswegs flachgedrückt, wobei ziehharmonikaartige regellose Verformungen entstehen würden, sondern ein Teil des Dosenmantels wird in den übrigen Teil des Dosenmantels hineingedrückt. Dadurch werden die Wandflächen des Dosenmantels eng und weitgehend faltenfrei gegeneinander gelegt, so dass ein doppelwandiger becherartiger Preßling mit geringstmöglichen Lufteinschlüssen besteht. Derartige Preßlinge können ineinander gestapelt werden und die Stapel können ihrerseits in ein Behältnis eingebracht werden, um eine größere Menge gepreßter Dosen aufzubewahren oder zu transportieren. In jedem Fall ergibt sich eine viel höhere Packungsdichte unter Vermeidung von Lufteinschlüssen als beim regellosen Zusammenpressen von Dosen.According to the invention, the cans are made by axial pressure deformed that part of the can jacket to form a Bending edge continuously into another part of the can jacket is pushed in such that a stackable cup-like Compact is created. This is a controlled and defined one Deformation of the can into a double-walled compact. This box is by no means flattened, with an accordion-like irregular deformations would arise, but part of the can jacket is in the remaining part of the Can casing pressed in. As a result, the wall surfaces of the Can jacket placed tightly and largely wrinkle-free so that a double-walled cup-like compact with the least possible Air pockets exist. Such compacts can be stacked one inside the other and the stacks can in turn placed in a container to make a larger one Keep or transport a lot of pressed cans. In in any case there is a much higher packing density under Avoidance of air pockets than with random compression of cans.

Die Erfindung bewirkt erhebliche Einsparungen von Lager- und Transportraum, an Energie und an Zeit- und Personalaufwand.The invention brings significant savings in storage and Transport space, energy and time and manpower.

Ein weiterer Vorteil besteht darin, dass durch das fortlaufende geordnete Verformen sämtliche Außenflächen der früheren Dose auch bei dem Preßling zugänglich sind. Es tritt nicht der Fall ein, dass bei einem Preßling zwei Abschnitte der Außenfläche sich gegenseitig bedecken. Wenn die Preßlinge in einem Pyrolyseofen bearbeitet werden, um Aufdrucke und andere Verunreinigungen durch Wärme zu entfernen, ist sichergestellt, dass die Wärme alle früheren Oberflächen der Dose tatsächlich erreicht.Another advantage is that by the continuous orderly deformation of all outer surfaces of the previous box are also accessible with the compact. It doesn't a that in a compact two sections of the outer surface cover each other. When the compacts in a pyrolysis furnace processed to print and other contaminants removing by heat ensures that the heat actually reaches all of the earlier surfaces of the can.

Die Erfindung eignet sich insbesondere für den Einsatz in Rückgabestellen der Einwegdosen oder auch für den häuslichen Gebrauch. Eine entsprechende Vorrichtung kann im einfachsten Fall eine manuell betriebene Handpresse sein. Sie kann alternativ auch motorisch betätigbar sein.The invention is particularly suitable for use in return points disposable cans or for domestic use. A corresponding device can in the simplest case be a manually operated hand press. Alternatively, you can also be operated by a motor.

Die Erfindung sieht ein Komprimieren der Dose innerhalb einer Preßform vor, die die Form eines Konus, eines Zylinders oder eines Rotationshyperboloiden haben kann. Vorzugsweise ist die Preßform eine leicht konische Hohlform, die zum Formen stapelbarer Becher geeignet ist. Das Verformen geschieht mit Hilfe eines Preßstempels, der in die Form eingeführt wird. Dieser Preßstempel ist im einfachsten Fall ein mechanisch bewegbarer Preßstempel mit vorzugsweise gewölbter Preßfläche. Als Preßstempel kann auch ein hydraulisch oder pneumatisch aufweitbarer Balg verwendet werden. The invention contemplates compressing the can within one Preform, which is the shape of a cone, a cylinder or of a rotational hyperboloid. Preferably, the Press mold a slightly conical hollow shape that is stackable for molding Mug is suitable. The deformation is done with the help a ram that is inserted into the mold. This In the simplest case, the ram is a mechanically movable one Press ram with a preferably curved press surface. As a stamp can also be a hydraulically or pneumatically expandable Bellows can be used.

Das erfindungsgemäße Verfahren eignet sich insbesondere für Einwegdosen, die aus Metall bestehen, beispielsweise Dosen aus Weißblech oder Aluminium. Bei Weißblechdosen werden die Preßlinge ohne Vorbehandlung in einen Schmelzofen eingegeben. Dagegen benötigen die Preßlinge von Aluminiumdosen eine Vorbehandlung durch Pyrolyse. Hierzu werden die Preßlinge aus dem Stapel heraus vereinzelt, so dass alle Teile der Oberfläche in dem Ofen einer gleichmäßigen Wärmebehandlung ausgesetzt werden.The method according to the invention is particularly suitable for Disposable cans made of metal, for example cans made of Tinplate or aluminum. With tin cans, the compacts entered into a melting furnace without pretreatment. On the other hand the compacts of aluminum cans require pretreatment through pyrolysis. For this, the compacts from the Stack out isolated so that all parts of the surface are in be subjected to an even heat treatment.

Die Erfindung betrifft ferner einen durch Komprimieren einer Einwegdose entstandenen Preßling von becherförmiger Gestalt mit doppelter Wandung. Der Preßling ist an einem Ende durch einen Biegerand begrenzt, wobei das Kopfende und das Bodenende der Dose gegeneinanderliegend den Becherboden am anderen Ende des Preßlings bilden.The invention further relates to one by compressing one Disposable can made of compact from cup-shaped shape with double wall. The compact is through one end Bending edge limited, the head end and the bottom end of the Can face the cup bottom at the other end of the Form compacts.

Die Erfindung ist grundsätzlich auch für Kunststoffdosen anwendbar. Der Begriff "Dose" ist im Rahmen der Erfindung weit zu verstehen. Er umfaßt generell längliche Behälter mit einem Boden an einem Ende und einer Auslauföffnung am anderen Ende, also auch Flaschen und flaschenähnliche Gebilde.In principle, the invention can also be used for plastic cans. The term "can" is too wide in the context of the invention understand. It generally includes elongated containers with one Bottom at one end and a spout at the other end, including bottles and bottle-like structures.

Im folgenden wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert.An embodiment will now be described with reference to the drawings the invention explained in more detail.

Es zeigen:

Fig. 1
einen schematischen Längsschnitt durch eine Vorrichtung zum Komprimieren von Dosen vor dem Beginn der Kompression,
Fig. 2
in gleicher Darstellung wie Fig. 1 den Zustand bei fortgeschrittener Kompression,
Fig. 3
einen schematischen Querschnitt durch den entstandenen Preßling,
Fig. 4
die Darstellung mehrerer Preßlinge in einer Hülse, und
Fig. 5
einen Verpackungsbehälter zur Aufnahme mehrerer Stapel von Preßlingen.
Show it:
Fig. 1
2 shows a schematic longitudinal section through a device for compressing cans before the start of compression,
Fig. 2
in the same representation as FIG. 1 the state with advanced compression,
Fig. 3
a schematic cross section through the compact formed,
Fig. 4
the representation of several compacts in a sleeve, and
Fig. 5
a packaging container for receiving several stacks of compacts.

In Figur 1 ist eine Dose 10 dargestellt, bei der es sich um eine Getränkedose handelt. Diese Dose ist leer. Sie ist in eine Preßform 11 eingesetzt, die einen länglichen Hohlraum 12 hat, welcher die Dose über deren Länge hinweg aufnimmt. Das eine Ende des Hohlraums 12 ist durch eine Bodenplatte 13 verschlossen. Vom gegenüberliegenden Ende her kann ein Preßstempel 14 in den Hohlraum 12 eingeführt werden.In Figure 1, a can 10 is shown, which is is a beverage can. This can is empty. It is in one Mold 11 used, which has an elongated cavity 12, which picks up the can along its length. The one The end of the cavity 12 is closed by a base plate 13. From the opposite end, a ram 14 in the cavity 12 are inserted.

In dem Hohlraum 12 ist die Dose 10 über Kopf angeordnet, d.h. gegen die Bodenwand 13 gerichtetem Kopfende 15, wobei das Bodenende 16 dem Preßstempel 14 zugewandt ist. Das Kopfende 15 ist verjüngt ausgebildet und mit einem Bördelrand versehen. Am Kopfende befindet sich auch die (nicht dargestellte) Öffnungslasche, die die Ausflußöffnung verschlossen hatte. Das Bodenende 16 ist gegenüber dem Dosenmantel 17 verstärkt ausgebildet, d.h. es hat etwa die, doppelte Wandstärke. Außerdem ist die Bodenwand 18 am Bodenende 16 zum Doseninneren hin gewölbt. In diese Wölbung wird die gewölbte Preßfläche 19 des Preßstempels 14 eingeführt. Dadurch wird die Dose 10 in Bezug auf den Preßstempel 14 und die Preßform 11 zentriert. Der Formhohlraum 12 hat eine konische Form, wobei er sich zur Bodenplatte 13 hin verjüngt. Er umgibt die Dose 10 über die gesamte Länge hinweg mit seitlichem Abstand, wobei dieser Abstand von oben nach unten abnimmt. Am unteren Ende befindet sich eine Einschnürung 20, in der das Kopfende 15 der Dose zentriert wird.In the cavity 12, the can 10 is placed overhead, i.e. against the bottom wall 13 head end 15, which Bottom end 16 facing the ram 14. The headboard 15 is tapered and has a beaded edge. At the There is also the opening tab (not shown) at the head end, that had closed the spout. The Bottom end 16 is reinforced compared to the can jacket 17, i.e. it has about twice the wall thickness. Besides, is the bottom wall 18 at the bottom end 16 is curved towards the inside of the can. In this curvature, the curved press surface 19 of the ram 14 introduced. This causes the can 10 to relate to the ram 14 and the die 11 centered. The mold cavity 12 has a conical shape, whereby it faces the bottom plate 13 tapered. It surrounds the can 10 over the entire length away with a lateral distance, this distance from above decreases downwards. There is a constriction at the lower end 20, in which the head end 15 of the can is centered.

Die Bodenplatte 13 enthält eine konkave Auswölbung 21, die während des Preßvorgangs das Kopfende der Dose aufnimmt. Ferner sind Entwässerungsöffnungen 22 vorgesehen, durch die aus der Dose auslaufende Flüssigkeit ablaufen kann.The bottom plate 13 contains a concave bulge 21 which during the head of the can of the pressing process. Further drainage openings 22 are provided through which the Can of escaping liquid can run out.

Beim Preßvorgang wird der Preßstempel 14 kontinuierlich in die rohrförmige Preßform 11 hineinbewegt. Dabei drückt er gegen die Bodenwand 18 der Dose 10. Infolge des axialen Druckes ist die Dose 10 bestrebt, radial in den Hohlraum 12 hinein auszuweichen. Dabei bildet sich ein ringförmiger Biegerand 23, der schließlich den Preßstempel 14 überragt und gewissermaßen einen Rollrand bildet. Dieser Verformungsvorgang ist in Fig. 2 dargestellt. Man erkennt, dass das Bodenende 16 der Dose in Richtung auf das Kopfende 15 bewegt wird und dass der bodennahe Bereich des Dosenmantels in den kopfnahen Bereich hineingefaltet wird.During the pressing process, the ram 14 is continuously in the tubular mold 11 moved into it. He presses against it Bottom wall 18 of the can 10. Due to the axial pressure is the Box 10 strives to move radially into cavity 12. An annular bending edge 23 is formed, which finally protrudes beyond the ram 14 and to a certain extent one Rolled edge forms. This deformation process is shown in Fig. 2. It can be seen that the bottom end 16 of the can in the direction is moved to the head end 15 and that the area near the ground of the can jacket is folded into the area near the head.

Wenn der Preßstempel 14 seine untere Endstellung erreicht hat, ist der in Fig. 3 dargestellte Preßling 25 entstanden. Dieser Preßling hat die Form eines im wesentlichen rotationssymmetrischen Bechers, dessen Höhe etwa der halben Länge der früheren Dose 10 entspricht. Die Wand des Preßlings 25 ist doppelwandig, d.h. sie besteht aus dem äußeren Wandteil 26 und dem inneren Wandteil 27. Beide Wandteile sind durch den umlaufenden Biegerand 23 verbunden und sie liegen vollflächig und eng aneinander. Der Preßling 25 verjüngt sich zum Becherboden 28 hin, an dem sich das frühere Kopfende 15 und Bodenende 16 der Dose befinden. When the ram 14 has reached its lower end position, the compact 25 shown in Fig. 3 is formed. This The compact has an essentially rotationally symmetrical shape Cup, the height of which is about half the length of the previous box 10 corresponds. The wall of the compact 25 is double-walled, i.e. it consists of the outer wall part 26 and the inner wall part 27. Both wall parts are by the circumferential Bending edge 23 connected and they are full and close to each other. The compact 25 tapers towards the cup bottom 28, at which the former head end 15 and bottom end 16 of the can are located.

Nachdem der in Fig. 3 dargestellte Preßling 25 in der Preßform entstanden ist, wird er aus der Preßform entnommen oder ausgeworfen und dann mit anderen gleichartigen Preßlingen zu einem Stapel 29 zusammengesetzt. Der Stapel wird in eine Hülse 30 eingesetzt. Mehrere Stapel 29 können in einen Behälter 31, z.B. einen Karton, eingestellt werden, um die Preßlinge zu lagern und zu transportieren. In dem Behälter 31 haben die Preßlinge eine hohe Materialdichte, so dass sie bei Lagerung und Transport wenig Platz beanspruchen. Da die Preßlinge in jedem Stapel 29 nur lose aneinander liegen, können sie für eine anschließende Behandlung leicht wieder vereinzelt werden.After the compact 25 shown in Fig. 3 in the mold is created, it is removed from the mold or ejected and then with other similar compacts to one Stack 29 assembled. The stack is placed in a sleeve 30 used. Several stacks 29 can be placed in a container 31, e.g. a box, can be set to store the compacts and to transport. In the container 31 have the compacts a high material density so that it can be used for storage and transportation take up little space. Because the compacts in every stack 29 only lie loosely together, they can be used for a subsequent Treatment can be separated again easily.

Claims (11)

Verfahren zum Komprimieren gebrauchter Einwegdosen, bei welchem die Dosen (10) durch axialen Druck derart verformt werden, dass ein Teil des Dosenmantels (17) unter Bildung eines Biegerandes (23) fortlaufend in einen anderen Teil des Dosenmantels hineingedrückt wird, derart, dass ein becherartiger Preßling (25) entsteht.Process for compressing used disposable cans, at which deforms the cans (10) in this way by axial pressure that part of the can jacket (17) under formation a bending edge (23) continuously into another part of the can jacket is pressed in such that a cup-like compact (25) is formed. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Preßlinge (25) zu Stapeln (29) ineinandergesetzt werden.A method according to claim 1, characterized in that the Compacts (25) to be stacked (29). Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Verformen von dem Bodenende (16) der Dose (10) aus in Richtung auf das Kopfende (15) erfolgt.A method according to claim 1 or 2, characterized in that that deforming from the bottom end (16) of the can (10) towards the head end (15). Verfahren nach einem der Ansprüche 1-3, gekennzeichnet durch die Verwendung einer länglichen rohrförmigen Preßform (11), welche die Dose (10) der Länge nach aufnimmt und in die ein Preßstempel (14) axial einführbar ist.Method according to one of claims 1-3, characterized through the use of an elongated tubular die (11), which receives the can (10) lengthways and in which a press ram (14) can be inserted axially. Vorrichtung zum Komprimieren gebrauchter Einwegdosen, mit einer Preßform (11), die die Dose (10) der Länge nach aufnimmt und in die ein Preßstempel (14) axial einführbar ist.Device for compressing used disposable cans, with a mold (11) which receives the can (10) lengthways and into which a press ram (14) can be inserted axially. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die rohrförmige Preßform (11) konisch ausgebildet und an ihrem verjüngten Ende mit einem Boden (13) abgeschlossen ist.Apparatus according to claim 5, characterized in that the tubular die (11) is conical and on its tapered end closed with a bottom (13) is. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Boden (13) mindestens eine Entwässerungsöffnung (22) aufweist. Apparatus according to claim 6, characterized in that the floor (13) has at least one drainage opening (22) having. Vorrichtung nach einem der Ansprüche 5-7, dadurch gekennzeichnet, dass die Preßform (11) mindestens abschnittsweise beheizt ist.Device according to one of claims 5-7, characterized in that that the mold (11) at least in sections is heated. Vorrichtung nach einem der Ansprüche 5-8, dadurch gekennzeichnet, dass der Preßstempel (14) eine gewölbte rotationssymmetrische Preßfläche (19) aufweist.Device according to one of claims 5-8, characterized in that the press ram (14) has a curved, rotationally symmetrical Has pressing surface (19). Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Preßfläche (19) die Form eines Rotationshyperboliodes hat.Apparatus according to claim 9, characterized in that the pressing surface (19) is in the form of a rotational hyperboloid Has. Durch Komprimieren einer Einwegdose (10) entstandener Preßling (25) von becherförmiger Gestalt mit doppelter Wandung (26,27), die einen Biegerand (23) bildet, wobei das Kopfende (15) und das Bodenende (16) der Dose (10) gegeneinanderliegend den Becherboden (28) bilden.A compact formed by compressing a disposable can (10) (25) cup-shaped with double walls (26,27), which forms a bending edge (23), the head end (15) and the bottom end (16) of the can (10) lying opposite one another form the cup base (28).
EP00106680A 1999-03-31 2000-03-29 Method and apparatus for compressing of single-use cans Withdrawn EP1044792A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999114618 DE19914618A1 (en) 1999-03-31 1999-03-31 A new type of compression unit for used aluminum and tinplate cans, which transforms used cans into cup-like and stackable structures in order to make optimal use of limited storage capacities such as: B. in take-back units of used cans
DE19914618 1999-03-31

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EP1044792A2 true EP1044792A2 (en) 2000-10-18
EP1044792A3 EP1044792A3 (en) 2000-11-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475944A (en) * 1966-12-30 1969-11-04 Robert L Marshner Reverse forming arrangement and method
US4035461A (en) * 1973-08-16 1977-07-12 Krauss-Maffei Aktiengesellschaft Method of making an extravertable-wall container
US5292242A (en) * 1990-08-31 1994-03-08 Robbins Edward S Iii Apparatus for forming a collapsible container
JPH09103832A (en) * 1995-10-06 1997-04-22 Chuo Seiki Kk Double wall cup using empty can, its production and producing device therefor
US5761949A (en) * 1997-02-19 1998-06-09 Trans-Matic Manufacturing Company Deep-drawn stamping process including side piercing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475944A (en) * 1966-12-30 1969-11-04 Robert L Marshner Reverse forming arrangement and method
US4035461A (en) * 1973-08-16 1977-07-12 Krauss-Maffei Aktiengesellschaft Method of making an extravertable-wall container
US5292242A (en) * 1990-08-31 1994-03-08 Robbins Edward S Iii Apparatus for forming a collapsible container
JPH09103832A (en) * 1995-10-06 1997-04-22 Chuo Seiki Kk Double wall cup using empty can, its production and producing device therefor
US5761949A (en) * 1997-02-19 1998-06-09 Trans-Matic Manufacturing Company Deep-drawn stamping process including side piercing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 08, 29. August 1997 (1997-08-29) & JP 09 103832 A (CHUO SEIKI KK), 22. April 1997 (1997-04-22) *

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