EP0645341A1 - Method and device for identifying and sorting of aluminium and plastic screw caps of bottles or similar containers after the unscrewing process - Google Patents

Method and device for identifying and sorting of aluminium and plastic screw caps of bottles or similar containers after the unscrewing process Download PDF

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Publication number
EP0645341A1
EP0645341A1 EP94113755A EP94113755A EP0645341A1 EP 0645341 A1 EP0645341 A1 EP 0645341A1 EP 94113755 A EP94113755 A EP 94113755A EP 94113755 A EP94113755 A EP 94113755A EP 0645341 A1 EP0645341 A1 EP 0645341A1
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EP
European Patent Office
Prior art keywords
unscrewing
heads
bottles
screw caps
containers
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EP94113755A
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German (de)
French (fr)
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EP0645341B1 (en
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Manfred Adelski
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/18—Hand- or power-operated devices for opening closed containers for removing threaded caps
    • B67B7/182—Hand- or power-operated devices for opening closed containers for removing threaded caps power-operated

Definitions

  • the invention relates to a method and a device for detecting and sorting aluminum and plastic screw caps of bottles and similar containers after the unscrewing process, according to the preamble of claim 1 and claim 2.
  • the declining reusable bottles must be freed of any screw caps that may have been screwed onto the bottle mouth before further treatment.
  • Various fully automated systems are known for this. Such a unscrewing machine is known for example from the company brochure "Adelski, Mannheim, PPE 80".
  • the return bottles with closures arriving on a conveyor belt are placed in a bottle sorting screw and from there they enter a bottle inlet star, which passes the bottles on to a central star via a belt guide.
  • the appropriate unscrewing heads lower onto the bottles and unscrew the existing closures from the bottle using a locking tool.
  • the unscrewing heads are designed so that any incoming bottles cannot be damaged at the mouth and thread without closure.
  • the central star then passes the bottles on to the discharge star, which forwards them to a conveyor belt running through the machine.
  • the closures twisted off the bottles are so long in the Unscrewing heads held until they are over a catch device. Here the twisted closures are released by the unscrewing head and fall into the closure catcher.
  • closures themselves are destroyed by the unscrewing head because it pierces through the closures.
  • the present invention is therefore based on the object of providing a method and a device by means of which detection and sorting, that is to say differentiation between the plastic and aluminum closures, is possible during the transport flow.
  • the invention takes on the property of the different caps with regard to their size, in particular their diameter.
  • Plastic screw caps have a larger diameter than aluminum screw caps. According to the invention, this difference in size or difference in diameter is now used to gradually eject the unscrewed caps.
  • the ejection plunger is controlled downwards via a stroke curve and opens by means of a control ring that slides on the corresponding control cams, the control levers arranged there. Now the unscrewed capsule, which until now has been held by the unscrewing plates, can fall down.
  • plastic capsule of aluminum separate, an additional step is installed on the stroke curve so that the unscrewing head first opens to a dimension of 29 mm, for example. Now the aluminum locks fall out.
  • the unscrewing head When the second stage is reached, the unscrewing head is opened to, for example, 34 mm, so that the plastic closures are ejected.
  • the difference in diameter of aluminum closures (28mm) compared to plastic closures (30mm) is used to sort them. If the unscrewing head unscrewed a plastic capsule, it is still held in place at the first stage (opening to 29mm). If an aluminum capsule had been unscrewed, it will be ejected in stage I. So the plastic capsule is only released at the second stage (opening 34mm).
  • FIG. 1 shows a cross section through a unscrewing machine 10.
  • a plurality of unscrewing heads 6 are arranged concentrically around a vertical axis 9.
  • the unscrewing heads 6 are used, among other things. formed from the gripping device 5 and the ejection plunger 11 (5 and 11 not recognizable).
  • the unscrewing heads 6 are also able to rotate about their own axis 12. This is important for the actual unscrewing process so that the screw caps 13 can be properly removed from the bottles 14.
  • the bottles Prior to this, the bottles are pre-sorted and centered, then inserted into the work area of the unscrewing machine in accordance with the registration. This is done in a known manner, for example by means of a centering star.
  • the unscrewing heads 6 have a guide carriage 15 which travels the cam 1.
  • the dynamics of the control curve 1 can be seen in two places in this figure, in that in the left half of the picture the control curve in area A is higher than the control curve 1 in area B. If the guide carriage 15 works the control curve 1 concentrically around the vertical axis 9 of the unscrewing machine , this has a direct effect on the stroke behavior of the unscrewing heads 6, or their ejection plungers 11.
  • FIG. 2 which shows an enlargement of the unscrewing head, the further process sequence can now be described further and in more detail.
  • a de-screwing head 6 consists of the gripping device 5 and the ejection plunger 11.
  • the de-screwing head 6 or the gripping device 5 has a plier-like shape. In this illustration according to FIG. 2, however, only a pair of pliers is shown for the sake of simplicity.
  • control levers 18 are arranged pivotable about an axis 19 within corresponding recesses. On their inside, the control levers 18 carry corresponding obliquely entering control cams 20. On the lower end side, a holding plate 21 is arranged on both sides of the control lever 18. The opposite control levers 18 are biased by the tension spring 22. The caps are now gripped and unscrewed in a conventionally known manner.
  • stepless movement path 30 which is followed by a second stage 4.
  • This area is identified as ejection sector 2 as a whole.
  • the collection containers are also located here, which are schematically identified by the reference numerals 7 and 8.
  • the development of the control curve begins with the reference symbol (I).
  • the inlet (II) is marked in the range of 95 °, an increase above 10 ° (III) taking place beforehand.
  • a lowering takes place in the range of 55 ° (IV), followed by a lower curve of 80 ° (V) with an approximately 7 mm slope.
  • the curve continues with a 30 ° sector (VI) upwards, followed by a 70 ° outlet (VII) (top).
  • the present invention provides a method and a device by means of which, using the screw cap diameter, it is possible to recognize and sort between aluminum and plastic screw caps in order to continue to handle them separately, for example first to eject them into separate collection containers.

Abstract

The invention relates to a method and a device for identifying and sorting aluminium and plastic screw caps of bottles (14) and similar containers after the unscrewing process, using a rotating unscrewing machine (10) having screwing-on heads (6) which describe a circular or curved path, engage around the screw caps (13) mounted on the bottles or containers and, with simultaneous rotation, screw them off, lift them up and discharge them by, among other means, arranging for an ejection rod (11), which can be actuated by means of a radial cam (1), directly or indirectly to open the gripping device (5) of the unscrewing heads for the caps and for the latter to be released above a collecting container, by arranging for expansion of the gripping device (5) of the unscrewing heads (6) to be carried out after some delay and in stages via at least two steps in the radial cam, in such a way that in an initial phase, when the first stage of the radial cam has been reached, the aluminium screw caps of a relatively small diameter and in a second phase after further operation of the radial cam and when the second step has been reached, the plastic screw caps of a relatively large diameter are ejected into separate containers at a distance from one another corresponding to the distance between the steps. In this process, the device according to the invention has a radial cam which activates the stroke of the unscrewing heads and has at least two steps in the ejection sector, the inclination, height, length and distance between the said steps being proportional to the opening distance of the gripping device of the unscrewing heads and the distance between the at least two collecting containers. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Erkennung und Sortierung von Aluminium- und Kunststoffschraubverschlüssen von Flaschen und gleichartigen Behältnissen nach dem Entschraubvorgang, gemäß dem Oberbegriff des Anspruchs 1 und des Anspruchs 2.The invention relates to a method and a device for detecting and sorting aluminum and plastic screw caps of bottles and similar containers after the unscrewing process, according to the preamble of claim 1 and claim 2.

Bevorzugterweise in der Getränkeindustrie müssen die rückläufigen Mehrwegflaschen vor der weiteren Behandlung von den eventuell auf der Flaschenmündung aufgedrehten Schraubverschlüssen befreit werden. Hierzu sind die verschiedensten vollautomatischen Anlagen bekannt. Eine solche Entschraubmaschine ist beispielsweise aus dem Firmenprospekt"Adelski, Mannheim, PPE 80" bekannt.Preferably in the beverage industry, the declining reusable bottles must be freed of any screw caps that may have been screwed onto the bottle mouth before further treatment. Various fully automated systems are known for this. Such a unscrewing machine is known for example from the company brochure "Adelski, Mannheim, PPE 80".

Die auf einem Transportband ankommenden, mit Verschlüssen versehenen Rücklaufflaschen werden in eine Flaschensortierschnecke eingebracht und gelangen von da in einen Flascheneinlaufstern, der die Flaschen über eine Riemenführung an einen Zentralstern weitergibt. Nachdem die Flaschen zentriert sind, senken sich entsprechende Entschrauberköpfe auf die Flaschen und drehen die vorhandenen Verschlüsse mittels eines Entschließwerkzeuges von der Flasche los. Die Entschrauberköpfe sind so ausgebildet, daß eventuell einlaufenden Flaschen ohne Verschluß nicht an Mündung und Gewinde beschädigt werden können. Der Zentralstern gibt danach die Flaschen an den Auslaufstern weiter, der sie auf einen durch die Maschine laufendes Transportband weiterleitet. Die von den Flaschen abgedrehten Verschlüsse werden so lange in den Entschrauberköpfen festgehalten, bis sie sich über einer Auffangvorrichtung befinden. Hier werden die abgedrehten Verschlüsse von dem Entschrauberkopf freigegeben und fallen in die Verschlußauffangvorrichtung.The return bottles with closures arriving on a conveyor belt are placed in a bottle sorting screw and from there they enter a bottle inlet star, which passes the bottles on to a central star via a belt guide. After the bottles are centered, the appropriate unscrewing heads lower onto the bottles and unscrew the existing closures from the bottle using a locking tool. The unscrewing heads are designed so that any incoming bottles cannot be damaged at the mouth and thread without closure. The central star then passes the bottles on to the discharge star, which forwards them to a conveyor belt running through the machine. The closures twisted off the bottles are so long in the Unscrewing heads held until they are over a catch device. Here the twisted closures are released by the unscrewing head and fall into the closure catcher.

Die Verschlüsse selbst werden durch den Entschrauberkopf zerstört, da dieser durch die Verschlüsse durchstößt.The closures themselves are destroyed by the unscrewing head because it pierces through the closures.

Um nun die Flaschenverschlüsse auszuwerfen bedarf es eines relativ hohen Hubs, der in Abhängigkeit der Verschlußhöhe steht.In order to eject the bottle caps, a relatively high stroke is required, which depends on the height of the caps.

Aus dem Firmenprospekt Alcoa "Abschraubmaschinen der 90er Serie" 1989 ist eine Abschraubmaschine ähnlichen Prinzips bekannt. Auch hier laufen die Flaschen, die einer Zentrierung unterzogen werden, in die Maschine ein und werden unter, konzentrisch um eine vertikale Achse positionierte und um diese rotierende Abschraubköpfe erfassungsgerecht positioniert. Während ständiger Bewegung durchlaufen die Flaschen das Arbeitsfeld, wobei eine synchrone Steuerung ein Aufwärtshub und Abwärtshub der Entschrauberköpfe mit sich zieht. Es werden hier zangenförmige Entschrauberköpfe benutzt, die Flaschenverschlüsse umgreifen, unter Rotation abdrehen, abheben und auswerfen. Der Hub der Entschrauberköpfe bzw. der darin integrierten Auswurfstößel wird über eine entsprechende und dem Bewegungsablauf der Entschrauberköpfe ausgerichtete Steuerkurve vollzogen.From the company brochure Alcoa "Unscrewing machines of the 90 series" 1989 a unscrewing machine similar principle is known. Here, too, the bottles, which are centered, run into the machine and are positioned below, concentrically positioned around a vertical axis and rotating around the unscrewing heads. During constant movement, the bottles pass through the work area, with a synchronous control unit causing the unscrewing heads to move up and down. Plier-shaped screwdriver heads are used here, which grip the bottle caps, twist them off under rotation, lift them off and eject them. The stroke of the unscrewing heads or the ejection plunger integrated therein is carried out via a corresponding control cam that is aligned with the movement sequence of the unscrewing heads.

Der Nachteil des aufgezeigten Standes der Technik besteht jedoch darin, daß diese Entschrauberköpfe bzw. Abschraubmaschinen Aluminium- und Kunststoffschraubverschlüsse nicht voneinander unterscheiden können. Dies ist jedoch aufgrund der weiteren Verwertung wünschenswert und erforderlich, da sich sonst eine aufwendige Sortierarbeit anschließt.The disadvantage of the prior art shown, however, is that these unscrewing heads or unscrewing machines are aluminum and Plastic screw caps cannot differentiate from one another. However, this is desirable and necessary due to the further recycling, since otherwise a complex sorting work will follow.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung bereitzustellen, mittels der eine Erkennung und Sortierung, also Unterscheidung der Kunststoff- und Aluminiumverschlüsse während des Transportflusses möglich ist.The present invention is therefore based on the object of providing a method and a device by means of which detection and sorting, that is to say differentiation between the plastic and aluminum closures, is possible during the transport flow.

Diese Aufgabe wird durch ein Verfahren nach dem kennzeichnenden Teil des Anspruchs 1 sowie durch eine Vorrichtung nach dem kennzeichnenden Teil des Anspruchs 2 gelöst.This object is achieved by a method according to the characterizing part of claim 1 and by a device according to the characterizing part of claim 2.

Die Erfindung macht sich hierbei die Eigenschaft der unterschiedlichen Verschlußkappen hinsichtlich ihrer Größe, insbesondere des Durchmessers zu eigen. Kunststoffschraubverschlüsse weisen einen größeren Durchmesser als Aluminiumschraubverschlüsse auf. Erfindungsgemäß wird nun diese Größendifferenz bzw. Durchmesserdifferenz dazu ausgenutzt, eine stufenweise Auswerfung der entschraubten Verschlußkappen vorzunehmen. Bei Entschraubmaschinen wird nach dem Entschraubvorgang der Auswurfstößel über eine Hubkurve nach unten gesteuert und öffnet mittels eines Steuerrings der auf entsprechende Steuernocken gleitet, dort angeordnete Steuerhebel. Nun kann die abgeschraubte Kapsel, die bis jetzt von den Entschraubungsplatten gehalten wurde, nach unten fallen. Um erfindungsgemäß nun Kunststoff- von Aluminiumkapsel zu trennen, wird an der Hubkurve eine zusätzliche Stufe eingebaut, so daß der Entschrauberkopf zunächst auf beispielsweise ein Maß von 29mm öffnet. Jetzt fallen die Aluminiumverschlüsse heraus. Beim Erreichen der zweiten Stufe wird der Entschrauberkopf auf beispielsweise 34mm geöffnet, so daß die Kunststoffverschlüsse ausgeworfen werden. Es wird sich hier also der Durchmesserunterschied von Aluminiumverschlüssen (28mm) gegenüber Kunststoffverschlüssen (30 mm) zunutze gemacht, um diese zu sortieren. Hat der Entschrauberkopf eine Kunststoffkapsel entschraubt, so wird diese bei der ersten Stufe (Öffnung auf 29mm) noch festgehalten. Wäre eine Aluminiumkapsel entschraubt worden, wird diese in Stufe I ausgestoßen. So wird die Kunststoffkapsel erst an der zweiten Stufe (Öffnung 34mm) freigegeben.The invention takes on the property of the different caps with regard to their size, in particular their diameter. Plastic screw caps have a larger diameter than aluminum screw caps. According to the invention, this difference in size or difference in diameter is now used to gradually eject the unscrewed caps. In unscrewing machines, after the unscrewing process, the ejection plunger is controlled downwards via a stroke curve and opens by means of a control ring that slides on the corresponding control cams, the control levers arranged there. Now the unscrewed capsule, which until now has been held by the unscrewing plates, can fall down. To according to the invention, plastic capsule of aluminum separate, an additional step is installed on the stroke curve so that the unscrewing head first opens to a dimension of 29 mm, for example. Now the aluminum locks fall out. When the second stage is reached, the unscrewing head is opened to, for example, 34 mm, so that the plastic closures are ejected. The difference in diameter of aluminum closures (28mm) compared to plastic closures (30mm) is used to sort them. If the unscrewing head unscrewed a plastic capsule, it is still held in place at the first stage (opening to 29mm). If an aluminum capsule had been unscrewed, it will be ejected in stage I. So the plastic capsule is only released at the second stage (opening 34mm).

Anhand den beigefügten Zeichnungen, die ein besonders bevorzugtes Ausführungsbeispiel der Erfindung zeigen, wird diese nun näher beschrieben. Dabei zeigen:

Figur 1
einen schematischen Querschnitt durch eine Abschraubmaschine;
Figur 1a
eine Vergrößerung der Fig. 1 (linker, oberer Bereich)
Figur 1b
eine Vergrößerung der Fig. 1 (rechter, oberer Bereich)
Figur 1c
eine Vergrößerung der Fig. 1 (linker, unterer Bereich)
Figur 1d
eine Vergrößerung der Fig. 1 (Mitte, unten)
Figur 2
eine Vergrößerung des Entschrauberkopfes;
Figur 3
eine Draufsicht auf den schematischen Verlauf der Steuerkurve und
Figur 4
eine schematisch dargestellte Abwicklung der Steuerkurve.
With reference to the accompanying drawings, which show a particularly preferred embodiment of the invention, this will now be described in more detail. Show:
Figure 1
a schematic cross section through a unscrewing machine;
Figure 1a
an enlargement of Fig. 1 (left, upper area)
Figure 1b
an enlargement of Fig. 1 (right, upper area)
Figure 1c
an enlargement of Fig. 1 (left, lower area)
Figure 1d
an enlargement of Fig. 1 (middle, bottom)
Figure 2
an enlargement of the stripper head;
Figure 3
a plan view of the schematic course of the control curve and
Figure 4
a schematically illustrated execution of the control curve.

Figur 1 zeigt einen Querschnitt durch eine Abschraubmaschine 10. Konzentrisch um eine vertikale Achse 9 sind eine Vielzahl von Entschrauberköpfen 6 angeordnet. Die Entschrauberköpfe 6 werden u.a. aus der Greifvorrichtung 5 und dem Auswurfstößel 11 (5 und 11 nicht erkennbar) gebildet. Neben der Rotation um die zentrale Vertikalachse 9 der Abschraubmaschine 10 sind die Entschrauberköpfe 6 auch in der Lage, um ihre eigene Achse 12 zu rotieren. Dies ist für den eigentlichen Entschraubvorgang wichtig, damit die Schraubverschlüsse 13 ordnungsgemäß von den Flaschen 14 abgenommen werden können. Zuvor werden die Flaschen vorsortiert und zentriert, erfassungsgerecht in den Arbeitsbereich der Abschraubmaschine eingeführt. Dies erfolgt in bekannter Art und Weise, beispielsweise mittels Zentrierstern.FIG. 1 shows a cross section through a unscrewing machine 10. A plurality of unscrewing heads 6 are arranged concentrically around a vertical axis 9. The unscrewing heads 6 are used, among other things. formed from the gripping device 5 and the ejection plunger 11 (5 and 11 not recognizable). In addition to the rotation about the central vertical axis 9 of the unscrewing machine 10, the unscrewing heads 6 are also able to rotate about their own axis 12. This is important for the actual unscrewing process so that the screw caps 13 can be properly removed from the bottles 14. Prior to this, the bottles are pre-sorted and centered, then inserted into the work area of the unscrewing machine in accordance with the registration. This is done in a known manner, for example by means of a centering star.

Endseitig besitzen die Entschrauberköpfe 6 einen Führungsschlitten 15, der die Steuerkurve 1 abfährt. Die Dynamik der Steuerkurve 1 wird in dieser Abbildung an zwei Stellen ersichtlich, indem in der linken Bildhälfte die Steuerkurve im Bereich A höher liegt als die Steuerkurve 1 im Bereich B. Arbeitet der Führungsschlitten 15 die Steuerkurve 1 konzentrisch um die vertikale Achse 9 der Abschraubmaschine ab, so hat dies unmittelbar Auswirkung auf das Hubverhalten der Entschrauberköpfe 6, bzw. deren Auswurfstößel 11. In Zusammenhang mit der Figur 2, welche eine Vergrößerung des Entschrauberkopfes zeigt, kann nun der weitere Verfahrensablauf weiter und näher beschrieben werden.At the end, the unscrewing heads 6 have a guide carriage 15 which travels the cam 1. The dynamics of the control curve 1 can be seen in two places in this figure, in that in the left half of the picture the control curve in area A is higher than the control curve 1 in area B. If the guide carriage 15 works the control curve 1 concentrically around the vertical axis 9 of the unscrewing machine , this has a direct effect on the stroke behavior of the unscrewing heads 6, or their ejection plungers 11. In connection with FIG. 2, which shows an enlargement of the unscrewing head, the further process sequence can now be described further and in more detail.

Hierzu wird zunächst auf das bauliche Wesen des Entschrauberkopfes 6 näher eingegangen. Wie bereits zuvor dargelegt, besteht ein Entschrauberkopf 6 aus der Greifvorrichtung 5 und dem Auswurfstößel 11. Der Entschrauberkopf 6 bzw. die Greifvorrichtung 5 besitzt zangenförmige Gestalt. In dieser Darstellung gemäß Figur 2 ist jedoch nur ein Zangenteil der Einfachheit halber dargestellt.For this purpose, the structural nature of the Descrewing head 6 discussed in more detail. As already explained above, a de-screwing head 6 consists of the gripping device 5 and the ejection plunger 11. The de-screwing head 6 or the gripping device 5 has a plier-like shape. In this illustration according to FIG. 2, however, only a pair of pliers is shown for the sake of simplicity.

An einer Glocke 16 sind innerhalb entsprechender Ausnehmungen 17 Steuerhebel 18 um eine Achse 19 schwenkbar angeordnet. An ihrer Innenseite tragen die Steuerhebel 18 entsprechende schrägeinlaufende Steuernocken 20. An der unteren Endseite sind am Steuerhebel 18 beidseits je eine Halteplatte 21 angeordnet. Die gegenüberliegenden Steuerhebel 18 sind über die Zugfeder 22 vorgespannt. Das Erfassen und Entschrauben der Verschlußkappen erfolgt nun in herkömmlicher bekannter Art und Weise.On a bell 16 17 control levers 18 are arranged pivotable about an axis 19 within corresponding recesses. On their inside, the control levers 18 carry corresponding obliquely entering control cams 20. On the lower end side, a holding plate 21 is arranged on both sides of the control lever 18. The opposite control levers 18 are biased by the tension spring 22. The caps are now gripped and unscrewed in a conventionally known manner.

Sollen nun die Verschlußkappen ausgestoßen werden, so erfolgt dies über die jeweilige Position des Entschrauberkopfes 6 auf der Steuerkurve 1. Hierbei wird der Quersplint 23 bei einem Aufwärtshub des Führungsschlittens 15 auf der Steuerkurve 1 an der unteren Wandung 24 des Langloches 25 anschlagen, da sich die Glocken 16 nebst Kolben 26 nach oben bewegen und hierbei der Auswurfstößel 11 mit seinem Steuerring 27 über die Steuernocken 20 abstreicht, wobei er über die Abschrägung 28 bis zum erhöhten Nockenteil 29 gelangt und somit die Greifvorrichtung 5 aufweitet.If the caps are now to be ejected, this is done via the respective position of the de-screwing head 6 on the control cam 1. Here, the cross pin 23 will strike the bottom wall 24 of the elongated hole 25 during an upward stroke of the guide carriage 15 on the control cam 1, since the Move bells 16 together with piston 26 upwards and in doing so wipe the ejection plunger 11 with its control ring 27 over the control cams 20, whereby it reaches the raised cam part 29 via the bevel 28 and thus expands the gripping device 5.

Erfindungsgemäß erfolgt diese Aufweitung nun stufenförmig, indem in die Steuerkurve 1 entsprechend dem Auswurfverhalten ausgelegte Stufen eingearbeitet sind.According to the invention, this widening now takes place in a step-like manner, in that stages designed in accordance with the ejection behavior are incorporated into the control cam 1.

Dies ist schematisch am günstigsten in den Figuren 3 und 4 zu erläutern.This is schematically best explained in FIGS. 3 and 4.

Neben dem üblichen Steuerkurvenverlauf zu der auch die erste Stufe 3 zu zählen ist, schließt sich ein stufenloser Bewegungsgang 30 an, welchem eine zweite Stufe 4 nachgeschaltet ist. Dieser Bereich ist im gesamten als Auswurfsektor 2 gekennzeichnet.
Hier befinden sich vorrichtungsgemäß dann auch die Sammelbehälter, die schematisch mit dem Bezugszeichen 7 und 8 gekennzeichnet sind.In addition to the usual course of the control curve, to which the first stage 3 is also to be counted, there follows a stepless movement path 30, which is followed by a second stage 4. This area is identified as ejection sector 2 as a whole.
According to the device, the collection containers are also located here, which are schematically identified by the reference numerals 7 and 8.

Mit dem Bezugszeichen (I) beginnt die Abwicklung der Steuerkurve. Im Bereich von 95° ist der Einlauf (II) gekennzeichnet, wobei zuvor über 10° (III) eine Steigerung erfolgt.
Im Bereich von 55° (IV) erfolgt eine Absenkung, wobei sich ein unterer Verlauf von 80° (V) mit etwa 7 mm Steigung anschließt.
Die Kurve setzt sich mit einem 30° Sektor (VI) nach oben fort, woran sich ein 70° Auslauf (VII) (oben) anschließt. Nun folgt eine 10° Stufe (VIII) - 10 mm steigend - mit anschließenden 10° (IX) horizontal Verlauf.The development of the control curve begins with the reference symbol (I). The inlet (II) is marked in the range of 95 °, an increase above 10 ° (III) taking place beforehand.
A lowering takes place in the range of 55 ° (IV), followed by a lower curve of 80 ° (V) with an approximately 7 mm slope.
The curve continues with a 30 ° sector (VI) upwards, followed by a 70 ° outlet (VII) (top). Now there is a 10 ° step (VIII) - 10 mm rising - with a subsequent 10 ° (IX) horizontal course.

Mit der vorliegenden Erfindung wird ein Verfahren und eine Vorrichtung bereitgestellt, mittels der unter Nutzung des Schraubverschlußdurchmessers eine Erkennung und Sortierung zwischen Aluminium- und Kunststoffschraubverschlüssen möglich ist, um diese getrennt weiter zu handhaben, beispielsweise zunächst in getrennte Sammelbehälter auszuwerfen.The present invention provides a method and a device by means of which, using the screw cap diameter, it is possible to recognize and sort between aluminum and plastic screw caps in order to continue to handle them separately, for example first to eject them into separate collection containers.

BezugszeichenlisteReference list

11
SteuerkurveControl curve
22nd
AuswurfsektorEjection sector
33rd
Stufe ILevel I
44th
Stufe IIStage II
55
GreifvorrichtungGripping device
66
EntschrauberkopfUnscrewing head
77
Sammelbehälter ICollection container I
88th
Sammelbehälter IICollection container II
99
vertikale Achse von 10vertical axis of 10
1010th
AbschraubmaschineUnscrewing machine
1111
AuswurfstößelEjection plunger
1212th
Achse von 6Axis of 6
1313
SchraubverschlußScrew cap
1414
Flaschebottle
1515
FührungsschlittenGuide carriage
1616
GlockeBell jar
1717th
AusnehmungenRecesses
1818th
SteuerhebelControl lever
1919th
SchwenkachseSwivel axis
2020th
SteuernockenControl cam
2121
HalteplattenHolding plates
2222
ZugfederTension spring
2323
QuersplintCross splint
2424th
untere Wandung von 25bottom wall of 25
2525th
LanglochLong hole
2626
Kolbenpiston
2727
SteuerringControl ring
2828
schräge Bahn von 20sloping track of 20
2929
erhöhter Nockenteil von 20raised cam part of 20
3030th
stufenloser Bewegungsgangstepless movement

Claims (2)

Verfahren zur Erkennung und Sortierung von Aluminium- und Kunststoffschraubverschlüssen von Flaschen und gleichartigen Behältnissen nach dem Entschraubvorgang, unter Verwendung einer rotierenden Abschraubmaschine mit eine Kreis- oder Bogenbahn beschreitenden Entschrauberköpfen, welche die auf den Flaschen oder Behältnissen aufgebrachten Schraubverschlüsse umgreifen und unter Rotation abschrauben, abheben und auswerfen, indem u.a. ein über eine Steuerkurve aktivierter Auswurfstößel direkt oder indirekt die Greifvorrichtung der Entschrauberköpfe für die Verschlüsse aufweitet und diese über einem Sammelbehältnis freigibt,
dadurch gekennzeichnet,
daß über mindestens zwei Stufen in der Steuerkurve eine zeitverzögernde und stufenweise Aufweitung der Greifvorrichtung der Entschrauberköpfe erfolgt, so daß a) in einer ersten Phase bei Erreichung der ersten Stufe der Steuerkurve die Aluminiumschraubverschlüsse mit kleinerem Durchmesser und b) in einer zweiten Phase nach weiterem Abarbeiten der Steuerkurve und bei Erreichen der zweiten Stufe die Kunststoffschraubverschlüsse mit größerem Durchmesser c) in getrennte entsprechend dem Stufenabstand voneinander distanzierten Behältnisse ausgeworfen werden. Process for the detection and sorting of aluminum and plastic screw caps of bottles and similar containers after unscrewing, using a rotating unscrewing machine with screwing heads that follow a circular or curved path, which grip the screw caps attached to the bottles or containers and unscrew, lift off and rotate eject by, among other things, an ejection tappet activated via a control cam directly or indirectly expanding the gripping device of the unscrewing heads for the closures and releasing them via a collecting container,
characterized,
that a time-delayed and gradual expansion of the gripping device of the unscrewing heads takes place over at least two stages in the control curve, so that a) in a first phase when reaching the first stage of the control curve, the aluminum screw caps with a smaller diameter and b) in a second phase after further processing of the control curve and when reaching the second stage, the plastic screw caps with a larger diameter c) are ejected into separate containers spaced apart according to the step spacing. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, mit einer Flaschentransportbahn und Zentriereinrichtungen, welche die Flaschen in eine erfassungsgerechte Position unter entsprechende, zangenförmige Entschrauberköpfe versetzt und wobei die Entschrauberköpfe um eine vertikale Zentralachse konzentrisch verteilt um diese eine Kreis- oder Bogenbahn beschreiten, die das Arbeitsfeld bildet und hierbei die Entschrauberköpfe kurvengesteuert auf- und absenken, wobei unter Rotation der Entschrauberköpfe die Entschraubung und danach der Auswurf der von den Flaschen getrennten Schraubverschlüssen erfolgt,
dadurch gekennzeichnet,
daß die den Hub der Entschrauberköpfe (6) aktivierende Steuerkurve (1), im Auswurfsektor (2) mindestens zwei Stufen (3,4) aufweist, die hinsichtlich ihrer Steigung, Höhe und Länge sowie Distanz untereinander proportional zur Aufweitung der Greifvorrichtung (5) der Entschrauberköpfe (6) und Abstand mindestens zweier Sammelbehälter (7,8) ausgebildet sind.Apparatus for carrying out the method according to claim 1, with a bottle transport path and centering devices, which puts the bottles in a position suitable for detection under corresponding, pincer-shaped de-screwing heads and wherein the de-screwing heads are distributed concentrically around a vertical central axis around a circular or arc path that treads the working field forms and in this case the unscrewing heads are controlled and lowered by cam control, with unscrewing and unscrewing and then ejection of the screw caps separated from the bottles,
characterized,
that the stroke of the unscrewing heads (6) activating the control cam (1), in the ejection sector (2) has at least two stages (3,4), which are proportional to the expansion of the gripping device (5) in terms of their gradient, height and length and distance from one another Unscrewing heads (6) and a distance of at least two collecting containers (7, 8) are formed.
EP94113755A 1993-09-21 1994-09-02 Method and device for identifying and sorting of aluminium and plastic screw caps of bottles or similar containers after the unscrewing process Expired - Lifetime EP0645341B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4331993A DE4331993C1 (en) 1993-09-21 1993-09-21 Method and device for recognizing and sorting aluminum and plastic screw caps of bottles and similar containers after unscrewing
DE4331993 1993-09-21

Publications (2)

Publication Number Publication Date
EP0645341A1 true EP0645341A1 (en) 1995-03-29
EP0645341B1 EP0645341B1 (en) 1997-02-05

Family

ID=6498166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94113755A Expired - Lifetime EP0645341B1 (en) 1993-09-21 1994-09-02 Method and device for identifying and sorting of aluminium and plastic screw caps of bottles or similar containers after the unscrewing process

Country Status (3)

Country Link
EP (1) EP0645341B1 (en)
AT (1) ATE148674T1 (en)
DE (2) DE4331993C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29621799U1 (en) 1996-12-18 1997-02-27 Kronseder Maschf Krones Device for unscrewing caps from vessels

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2752035A1 (en) * 1977-11-22 1979-05-23 Hermann Dr Datz Processing machine for mixed screw top bottles - has sensors to identify closures and actuate removal heads to deliver them to respective collecting bone

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2752035A1 (en) * 1977-11-22 1979-05-23 Hermann Dr Datz Processing machine for mixed screw top bottles - has sensors to identify closures and actuate removal heads to deliver them to respective collecting bone

Also Published As

Publication number Publication date
ATE148674T1 (en) 1997-02-15
DE4331993C1 (en) 1995-03-16
DE59401757D1 (en) 1997-03-20
EP0645341B1 (en) 1997-02-05

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