EP2289640A1 - Spraying device - Google Patents

Spraying device Download PDF

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Publication number
EP2289640A1
EP2289640A1 EP10165826A EP10165826A EP2289640A1 EP 2289640 A1 EP2289640 A1 EP 2289640A1 EP 10165826 A EP10165826 A EP 10165826A EP 10165826 A EP10165826 A EP 10165826A EP 2289640 A1 EP2289640 A1 EP 2289640A1
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EP
European Patent Office
Prior art keywords
spray
nozzle
container
nozzles
spray device
Prior art date
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Granted
Application number
EP10165826A
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German (de)
French (fr)
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EP2289640B1 (en
Inventor
Karl-Heinz Messer
Lothar Aschenbrenner
Jan Momsen
Bernd Hansen
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Krones AG
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Krones AG
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Publication of EP2289640A1 publication Critical patent/EP2289640A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
    • B08B9/34—Arrangements of conduits or nozzles

Definitions

  • the invention relates to a spray device explained in the preamble of claim 1 Art.
  • a spray device of this kind is from the DE 43 30 335 A1 known.
  • the known spray device is used for bottle cleaning devices in which a conveyor promotes the bottles upside down, ie with the opening down, through the cleaning device and the sprayer away.
  • the spraying device contains a plurality of nozzles which track the nozzle jet cam-controlled along the conveying direction of the bottles.
  • the nozzles are the orifices of through-holes through a nozzle shaft rotatably seated on a manifold containing a through bore communicating with an injection channel and with the nozzle shaft.
  • the nozzle shaft rotates over the manifold bore, so that whenever the nozzle bore is aligned with the manifold bore, a spray jet is created which enters the bottle through the mouth of the bottle for internal cleaning.
  • the external cleaning of the bottles is either by different immersion baths or by, in particular in the rinse cycle, from above, i. to the bottom of the bottles, impinging fluids.
  • this exterior cleaning the mouth of the bottles can not always be cleaned satisfactorily.
  • the invention is therefore based on the object to improve the external cleaning of containers, in particular in the region of the mouth opening.
  • the inventively made Absorption the injection from the top is achieved in a structurally simple way that the mouth of containers can be better cleaned, as it can be optimally reached by the spray jet from below.
  • Inner and outer nozzles preferably sit on a common nozzle shaft and can thus be driven by a single device, preferably a cam control.
  • a single device preferably a cam control.
  • two external spray nozzles are preferred, which preferably operate in mirror image with respect to one another.
  • prefabricated nozzle pairs are particularly simple, each comprising an outer and an inner injection nozzle, which are each provided on a common nozzle shaft. If these pairs of spray nozzles are then arranged in mirror image with respect to one another, then two spray jets directed into the interior of the container and two directed on opposite outer sides.
  • the external cleaning can be further improved by the spray jet from the outer spray nozzle is adjusted so that it extends beyond the axial length of the container, falls back from above the bottom of the container and then, following the contour of the bottle outer wall, back to running down, so that in the area of the mouth opposite water flows arise, which have a good cleaning effect.
  • a spray device 1 which are part of a cleaning system 2 for container 3, bottles are formed.
  • the cleaning device 2 includes a conveyor 4, which moves in the conveying direction F through the system.
  • the conveyor 4 contains holders 5 for the containers 3, with which the containers 3 are transported overhead, ie with the opening 3a pointing downwards.
  • the brackets 5 bottle baskets.
  • the spray device 1 includes a plurality of nozzles 6, which are transverse to the conveying direction F side by side so that the container 3 from each of the nozzles 6 can be achieved by a spray jet.
  • the nozzles 6 contain at least one outer spray nozzle 6a and at least one inner spray nozzle 6i.
  • the outer nozzle 6a and the inner nozzle 6i are formed as through-holes 7 in a nozzle shaft 8 which is rotatably supported in a bearing sleeve 9 which is seated on a manifold 10.
  • the distributor 10 includes through-holes 11 in a distribution space 10 a, wherein the through-holes 11 are formed and arranged to be aligned with the nozzle bores 7 upon rotation of the nozzle shaft 8.
  • the diameter of the distributor bores 11 is greater than that of the nozzle bores 7, so that the nozzle bores 7 remain connected to the distributor chamber 10a over a certain rotational angle range.
  • the distribution chamber 10a communicates via a supply opening 12 with a distribution channel 13 in connection, which supplies all the injection devices.
  • the bearing sleeve 9 is provided in the desired rotation angle range of the injection with an opening 14 through which a spray jet can be discharged.
  • an inner spray nozzle 6i and an outer spray nozzle 6a are each arranged on a common rotary shaft 8.
  • the rotary shaft 8 is rotatably driven, preferably via a cam control 14.
  • the cam control 14 includes cams 15 which are actuated when passing through the container 3 by a driver 16 of the holder 5.
  • the nozzle bores 7 enter and out of alignment with the through holes 11 of the manifold 10 and are thereby supplied with spray liquid, whereby each of the nozzles 6 generates a spray jet 17.
  • one of the nozzles, the outside spray nozzle 6a, a spray jet 17a directed to the outside of the tank at or above the mouth, and the inside spray nozzle 6i should generate a spray jet 17i which can enter the mouth 3a.
  • two pairs of spray nozzles 60A and 60B are provided, each formed with a nozzle shaft 8, an inner nozzle 6i, an outer nozzle 6a, and a cam controller 14.
  • the spray nozzles 6a, 6i are arranged transversely to the conveying direction F, but have the same angular orientation. For reasons of space, both pairs are in the conveying direction F ( Fig. 2 ) arranged one behind the other and mirror-inverted, so that each of the outer nozzles 6a of the two pairs 60A and 60B has a the two opposite container halves sweeps over.
  • the second inner nozzle 6i of one of the two pairs 60A, 60B is not absolutely necessary, but may be formed to act, for example, together with the second inner nozzle in a manner as shown in FIG DE 43 30 335 A1 is described. If a holder is used with which the container 3 can be rotated, so only a pair of an external and an internal spray nozzle is necessary.
  • the distance between the nozzle holes on a nozzle shaft about 20 mm.
  • one or all of the nozzles 6 consist of two nozzle bores 7 which are offset by 90 ° about the axis of the nozzle shaft 8, so that not only two but four spray jets can be generated per revolution of the nozzle shaft.
  • the nozzles can be actuated in many different ways, an embodiment will be described below with reference to the Fig. 3a to 3i be explained.
  • the inner rays 17i are marked with solid lines and the outer rays 17a with dot-dashed rays.
  • Fig. 3a shows the beginning of the Abspritzens a container 3, which enters the spray device 1.
  • only one spray nozzle pair 60A is shown here consisting of two injection nozzles 6a, 6i arranged one behind the other perpendicular to the plane of the drawing.
  • the container 3 is first struck by external jets 17a into which the container 3 runs.
  • the spray jet 17a hits the outer wall of the container just above the opening 3a and flows over the outside of the container 3 upwards.
  • the spray jet intensity is adjusted so that the spray jet 17a extends over the axial length of the container 3 and over the bottom, indicated by a cloud of droplets 18 passes.
  • the droplets fall back to the bottom of the container 3 and run down its outer wall until they drip off in the region of the opening 3a and thus rinse all dissolved Konterminleiteren.
  • the container 3 continues to move in the conveying direction F until it reaches a position in which the opening 3a can be reached by the inner nozzle 6i.
  • the inner nozzle 6i starts to inject and directs the jet into the interior of the container 3.
  • the cleaning of the inner wall begins.
  • the outer spray jet 17a is maintained and runs in the illustrated embodiment substantially parallel to the inner spray jet 17i.
  • Fig. 3c the central position is reached, in which the spray jets 17i and 17a are directed substantially vertically upward, wherein the droplet cloud 18 of the external spray jet 17a undergoes its greatest expression.
  • the inner spray jet 17i is about to leave the opening 3a, wherein it is expediently subsequently switched off.
  • the outer beam 17a can, as Fig. 3e shows, stay active.
  • the operation of the spray device with two spray nozzle pairs 60A, 60B is analogous, but since the pairs 60A, 60B are offset by a certain distance in the conveying direction F, the operating intervals are also offset by suitable control.
  • two external spray nozzles are combined with a single internal spray nozzle on a common rotary shaft to achieve a complete all-round cleaning, and the spray jet 17a and 17i synchronously squirt.
  • the control of the spray nozzles shown can be done by other means, also spray nozzles of other construction can be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Spray Control Apparatus (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Abstract

The spraying device (1) has a container conveyor for transporting a container (3) with the mouth facing downwards. A spray nozzle (6) acts on the container from the bottom. An external spray nozzle (6a) acts on an outer surface of the container. Another external spray nozzle is directed to the outer surface of the container next to an internal spray nozzle (6i) directed to spray through the mouth of the container. The external and internal spray nozzles are arranged on a common nozzle shaft (8). An independent claim is also included for a method for cleaning containers.

Description

Die Erfindung bezieht sich auf eine Spritzvorrichtung der im Oberbegriff von Anspruch 1 erläuterten Art.The invention relates to a spray device explained in the preamble of claim 1 Art.

Eine Spritzvorrichtung dieser Art ist aus der DE 43 30 335 A1 bekannt. Die bekannte Spritzvorrichtung wird für Flaschenreinigungseinrichtungen eingesetzt, bei denen ein Förderer die Flaschen kopfüber, d.h. mit der Öffnung nach unten, durch die Reinigungseinrichtung und über die Spritzvorrichtung hinweg fördert. Die Spritzvorrichtung enthält eine Mehrzahl von Düsen, die den Düsenstrahl nockengesteuert entlang der Förderrichtung der Flaschen nachführen. Die Düsen sind die Mündungsöffnungen von Durchgangsbohrungen durch eine Düsenwelle, die drehbar auf einem Verteiler sitzt, der eine mit einem Spritzkanal und mit der Düsenwelle in Verbindung stehende Durchgangsbohrung enthält. Die Düsenwelle dreht sich über die Verteilerbohrung hinweg, so dass immer dann, wenn die Düsenbohrung mit der Verteilerbohrung fluchtend ausgerichtet ist, ein Spritzstrahl erzeugt wird, der durch die Öffnung der Flasche in die Flasche eintritt und dort eine Innenreinigung vornimmt.A spray device of this kind is from the DE 43 30 335 A1 known. The known spray device is used for bottle cleaning devices in which a conveyor promotes the bottles upside down, ie with the opening down, through the cleaning device and the sprayer away. The spraying device contains a plurality of nozzles which track the nozzle jet cam-controlled along the conveying direction of the bottles. The nozzles are the orifices of through-holes through a nozzle shaft rotatably seated on a manifold containing a through bore communicating with an injection channel and with the nozzle shaft. The nozzle shaft rotates over the manifold bore, so that whenever the nozzle bore is aligned with the manifold bore, a spray jet is created which enters the bottle through the mouth of the bottle for internal cleaning.

Die Außenreinigung der Flaschen wird entweder durch verschiedene Tauchbäder oder durch, insbesondere im Spülgang, von oben, d.h. auf den Boden der Flaschen, auftreffende Flüssigkeiten vorgenommen. Es hat sich jedoch herausgestellt, dass mit dieser Außenreinigung die Mündung der Flaschen nicht immer zufriedenstellend gereinigt werden kann.The external cleaning of the bottles is either by different immersion baths or by, in particular in the rinse cycle, from above, i. to the bottom of the bottles, impinging fluids. However, it has been found that with this exterior cleaning the mouth of the bottles can not always be cleaned satisfactorily.

Der Erfindung liegt somit die Aufgabe zugrunde, die Außenreinigung von Behälter, insbesondere im Bereich der Öffnungsmündung, zu verbessern.The invention is therefore based on the object to improve the external cleaning of containers, in particular in the region of the mouth opening.

Die Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale gelöst.The object is solved by the features specified in claim 1.

Durch die erfindungsgemäß vorgenommene Abkehr der Spritzung von der Oberseite wird auf konstruktiv einfache Weise erreicht, dass die Mündung von Behältern besser gereinigt werden kann, da sie durch den Spritzstrahl von unten optimal zu erreichen ist.The inventively made Abkehr the injection from the top is achieved in a structurally simple way that the mouth of containers can be better cleaned, as it can be optimally reached by the spray jet from below.

Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.Advantageous developments can be found in the dependent claims.

Besonders vorteilhaft ist die Kombination einer Innenreinigung mit einer Außenreinigung über kombinierte Innen- und Außendüsen.Particularly advantageous is the combination of an internal cleaning with an exterior cleaning on combined inner and outer nozzles.

Innen- und Außendüsen sitzen bevorzugt auf einer gemeinsamen Düsenwelle und können somit über eine einzige Einrichtung, bevorzugt eine Nockensteuerung, angetrieben werden. Für eine optimale Reinigung sind zwei Außen-Spritzdüsen bevorzugt, die bevorzugt spiegelbildlich zueinander arbeiten.Inner and outer nozzles preferably sit on a common nozzle shaft and can thus be driven by a single device, preferably a cam control. For optimal cleaning, two external spray nozzles are preferred, which preferably operate in mirror image with respect to one another.

Konstruktiv und herstellungstechnisch besonders einfach sind vorgefertigte Düsenpaarungen aus jeweils einer Außen- und einer Innen-Spritzdüse, die jeweils auf einer gemeinsamen Düsenwelle vorgesehen sind. Werden diese Spritzdüsenpaare dann spiegelbildlich zueinander angeordnet, so ergeben sich zwei in das Innere des Behälters und zwei auf gegenüberliegende Außenseiten gerichtete Spritzstrahlen.In terms of design and manufacture, prefabricated nozzle pairs are particularly simple, each comprising an outer and an inner injection nozzle, which are each provided on a common nozzle shaft. If these pairs of spray nozzles are then arranged in mirror image with respect to one another, then two spray jets directed into the interior of the container and two directed on opposite outer sides.

Durch das erfindungsgemäße Verfahren wird auf konstruktiv einfache Weise eine wesentlich bessere Außenreinigung erreicht. Dabei kann die Außenreinigung noch weiter verbessert werden, indem der Spritzstrahl aus der Außen-Spritzdüse so eingestellt wird, dass er über die axiale Länge des Behälters hinausreicht, von oben auf den Boden des Behälters zurückfällt und dann, der Kontur der Flaschenaußenwand folgend, wieder nach unten läuft, so dass auch im Bereich der Mündung einander entgegengesetzte Wasserströme entstehen, die eine gute Reinigungswirkung aufweisen.By the method according to the invention a significantly better exterior cleaning is achieved in a structurally simple manner. In this case, the external cleaning can be further improved by the spray jet from the outer spray nozzle is adjusted so that it extends beyond the axial length of the container, falls back from above the bottom of the container and then, following the contour of the bottle outer wall, back to running down, so that in the area of the mouth opposite water flows arise, which have a good cleaning effect.

Die Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine Ansicht einer erfindungsgemäßen Spritzvorrichtung in Förderrichtung,
Fig. 2
eine Seitenansicht der erfindungsgemäßen Spritzvorrichtung im Schnitt II-II,
Fig. 3a bis 3e
verschiedene Spritzstadien beim Durchlaufen eines Behälters durch die Spritzvorrichtung.
The invention will be explained in more detail with reference to the drawings. Show it:
Fig. 1
a view of a spray device according to the invention in the conveying direction,
Fig. 2
a side view of the injection device according to the invention in section II-II,
Fig. 3a to 3e
different injection stages when passing through a container through the spray device.

Aus den Fig. 1 und 2 ist ein erstes Ausführungsbeispiel einer Spritzvorrichtung 1 ersichtlich, die Teil einer Reinigungsanlage 2 für Behälter 3, dargestellt sind Flaschen, bildet. Die Reinigungsvorrichtung 2 enthält einen Förderer 4, der sich in Förderrichtung F durch die Anlage bewegt. Der Förderer 4 enthält Halterungen 5 für die Behälter 3, mit denen die Behälter 3 überkopf, d.h. mit nach unten weisender Öffnung 3a, transportiert werden. Im dargestellten Ausführungsbeispiel sind die Halterungen 5 Flaschenkörbe.From the Fig. 1 and 2 is a first embodiment of a spray device 1 can be seen, which are part of a cleaning system 2 for container 3, bottles are formed. The cleaning device 2 includes a conveyor 4, which moves in the conveying direction F through the system. The conveyor 4 contains holders 5 for the containers 3, with which the containers 3 are transported overhead, ie with the opening 3a pointing downwards. In the illustrated embodiment, the brackets 5 bottle baskets.

Die Spritzvorrichtung 1 enthält eine Mehrzahl von Düsen 6, die quer zur Förderrichtung F derart nebeneinander liegen, dass der Behälter 3 aus jeder der Düsen 6 durch einen Spritzstrahl erreicht werden kann.The spray device 1 includes a plurality of nozzles 6, which are transverse to the conveying direction F side by side so that the container 3 from each of the nozzles 6 can be achieved by a spray jet.

Die Düsen 6 enthalten mindestens eine Außen-Spritzdüse 6a und mindestens eine Innen-spritzdüse 6i. Die Außen-Spitzdüse 6a und die Innen-Spritzdüse 6i sind als Durchgangsbohrungen 7 in einer Düsenwelle 8 ausgebildet, die drehbar in einer Lagerhülse 9 gelagert ist, die auf einem Verteiler 10 sitzt. Der Verteiler 10 enthält Durchgangsbohrungen 11 in einem Verteilerraum 10a, wobei die Durchgangsbohrungen 11 so ausgebildet und angeordnet sind, dass sie mit den Düsenbohrungen 7 beim Drehen der Düsenwelle 8 in Ausrichtung gelangen. Bevorzugt ist der Durchmesser der Verteilerbohrungen 11 größer als die der Düsenbohrungen 7, so dass die Düsenbohrungen 7 über einen gewissen Drehwinkelbereich mit dem Verteilerraum 10a verbunden bleiben. Der Verteilerraum 10a steht über eine Versorgungsöffnung 12 mit einem Verteilkanal 13 in Verbindung, der alle Spritzeinrichtungen versorgt. Die Lagerhülse 9 ist im gewünschten Drehwinkelbereich der Spritzung mit einer Öffnung 14 versehen, durch die ein Spritzstrahl abgegeben werden kann.The nozzles 6 contain at least one outer spray nozzle 6a and at least one inner spray nozzle 6i. The outer nozzle 6a and the inner nozzle 6i are formed as through-holes 7 in a nozzle shaft 8 which is rotatably supported in a bearing sleeve 9 which is seated on a manifold 10. The distributor 10 includes through-holes 11 in a distribution space 10 a, wherein the through-holes 11 are formed and arranged to be aligned with the nozzle bores 7 upon rotation of the nozzle shaft 8. Preferably, the diameter of the distributor bores 11 is greater than that of the nozzle bores 7, so that the nozzle bores 7 remain connected to the distributor chamber 10a over a certain rotational angle range. The distribution chamber 10a communicates via a supply opening 12 with a distribution channel 13 in connection, which supplies all the injection devices. The bearing sleeve 9 is provided in the desired rotation angle range of the injection with an opening 14 through which a spray jet can be discharged.

Im dargestellten Ausführungsbeispiel ist jeweils eine Innen-Spritzdüse 6i und eine Außen-Spritzdüse 6a auf einer gemeinsamen Drehwelle 8 angeordnet. Die Drehwelle 8 wird drehend angetrieben, bevorzugt über eine Nockensteuerung 14. Die Nockensteuerung 14 enthält Nocken 15, die beim Vorbeilaufen der Behälter 3 durch einen Mitnehmer 16 der Halterung 5 betätigt werden. Dadurch wird die Nockensteuerung 14 gedreht und dreht die Drehwelle 8. Durch das Drehen der Drehwelle 8 gelangen die Düsenbohrungen 7 in und außer Ausrichtung mit den Durchgangsbohrungen 11 des Verteilers 10 und werden dadurch mit Spritzflüssigkeit versorgt, wodurch jede der Düsen 6 einen Spritzstrahl 17 erzeugt. Die Düsen 6, die auf einer gemeinsamen Düsenwelle 8 sitzen, können bezüglich der Winkellage in Umfangsrichtung um die Drehwelle 8 und/oder auch bezüglich ihrer Winkellage in Axialrichtung zur Drehwelle 8 und/oder der Anordnung neben bzw. unterhalb der Bewegungsbahn der Öffnung 3a gleich oder unterschiedlich sein. Auf jeden Fall sollte jedoch eine der Düsen, die Außen-Spritzdüse 6a, einen auf die Außenseite des Behälters an oder oberhalb der Mündung gerichteten Spritzstrahl 17a, und die Innen-Spritzdüse 6i einen Spritzstrahl 17i erzeugt, der in die Mündung 3a eintreten kann.In the exemplary embodiment shown, an inner spray nozzle 6i and an outer spray nozzle 6a are each arranged on a common rotary shaft 8. The rotary shaft 8 is rotatably driven, preferably via a cam control 14. The cam control 14 includes cams 15 which are actuated when passing through the container 3 by a driver 16 of the holder 5. By rotating the rotary shaft 8, the nozzle bores 7 enter and out of alignment with the through holes 11 of the manifold 10 and are thereby supplied with spray liquid, whereby each of the nozzles 6 generates a spray jet 17. The nozzles 6, which sit on a common nozzle shaft 8, with respect to the angular position in the circumferential direction about the rotary shaft 8 and / or also with respect to their angular position in the axial direction to the rotary shaft 8 and / or the arrangement next to or below the movement path of the opening 3a the same or be different. In any case, however, one of the nozzles, the outside spray nozzle 6a, a spray jet 17a directed to the outside of the tank at or above the mouth, and the inside spray nozzle 6i should generate a spray jet 17i which can enter the mouth 3a.

Im dargestellten Ausführungsbeispiel sind zwei Spritzdüsenpaare 60A und 60B vorgesehen, die jeweils mit einer Düsenwelle 8, einer Innen-Spritzdüse 6i, einer Außen-Spritzdüse 6a und einer Nockensteuerung 14 ausgebildet sind. Die Spritzdüsen 6a, 6i sind quer zur Förderrichtung F beabstandet angeordnet, weisen jedoch die gleiche Winkelausrichtung auf. Aus Platzgründen sind beide Paare in Förderrichtung F (Fig. 2) hintereinander und spiegelbildlich angeordnet, so dass jede der Außendüsen 6a der beiden Paare 60A und 60B eine der beiden gegenüberliegenden Behälterhälften überstreicht. Die zweite Innendüse 6i eines der beiden Paare 60A, 60B ist nicht unbedingt erforderlich, kann jedoch so ausgebildet sein, dass sie beispielsweise zusammen mit der zweiten Innen-Spritzdüse in einer Weise wirkt, wie dies in der DE 43 30 335 A1 beschrieben ist. Wird eine Halterung verwendet, mit der die Behälter 3 gedreht werden können, so ist lediglich ein Paar aus einer Außen- und einer Innen-Spritzdüse notwendig.In the illustrated embodiment, two pairs of spray nozzles 60A and 60B are provided, each formed with a nozzle shaft 8, an inner nozzle 6i, an outer nozzle 6a, and a cam controller 14. The spray nozzles 6a, 6i are arranged transversely to the conveying direction F, but have the same angular orientation. For reasons of space, both pairs are in the conveying direction F ( Fig. 2 ) arranged one behind the other and mirror-inverted, so that each of the outer nozzles 6a of the two pairs 60A and 60B has a the two opposite container halves sweeps over. The second inner nozzle 6i of one of the two pairs 60A, 60B is not absolutely necessary, but may be formed to act, for example, together with the second inner nozzle in a manner as shown in FIG DE 43 30 335 A1 is described. If a holder is used with which the container 3 can be rotated, so only a pair of an external and an internal spray nozzle is necessary.

Je nach Art und Abmessung der zu reinigenden Behälter können auch die Abmessungen der Düsen verändert werden, im dargestellten Ausführungsbeispiel ist der Abstand zwischen den Düsenbohrungen auf einer Düsenwelle ca. 20 mm. Weiterhin ist es möglich, dass eine oder alle Düsen 6 aus zwei Düsenbohrungen 7 bestehen, die um 90° um die Achse der Düsenwelle 8 versetzt zueinander angeordnet sind, so dass pro Umdrehung der Düsenwelle nicht nur zwei sondern vier Spritzstrahlen erzeugt werden können.Depending on the type and size of the containers to be cleaned and the dimensions of the nozzle can be changed, in the illustrated embodiment, the distance between the nozzle holes on a nozzle shaft about 20 mm. Furthermore, it is possible that one or all of the nozzles 6 consist of two nozzle bores 7 which are offset by 90 ° about the axis of the nozzle shaft 8, so that not only two but four spray jets can be generated per revolution of the nozzle shaft.

Die Düsen können auf die unterschiedlichste Weise betätigt werden, ein Ausführungsbeispiel soll nachfolgend anhand der Fig. 3a bis 3i erläutert werden. In den nachfolgenden Figuren werden die Innenstrahlen 17i mit durchgezogenen Strichen und die Außenstrahlen 17a mit strichpunktierten Strahlen gekennzeichnet.The nozzles can be actuated in many different ways, an embodiment will be described below with reference to the Fig. 3a to 3i be explained. In the following figures, the inner rays 17i are marked with solid lines and the outer rays 17a with dot-dashed rays.

Fig. 3a zeigt den Beginn des Abspritzens eines Behälters 3, der in die Spritzvorrichtung 1 einläuft. Der Einfachheit halber ist hier nur ein Spritzdüsenpaar 60A aus zwei senkrecht zur Zeichnungsebene hintereinander liegenden Spritzdüsen 6a, 6i gezeigt. Beim Einlaufen in die Spritzvorrichtung 1 wird der Behälter 3 zuerst von Außenstrahlen 17a getroffen, in den der Behälter 3 hineinläuft. Der Spritzstrahl 17a trifft die Außenwand des Behälters kurz oberhalb der Öffnung 3a und strömt über die Außenseite des Behälters 3 nach oben. Die Spritzstrahlstärke ist so eingestellt, dass der Spritzstrahl 17a über die axiale Länge des Behälters 3 reicht und über den Boden, angedeutet durch eine Tröpfchenwolke 18 übertritt. Die Tröpfchen fallen zurück auf den Boden des Behälters 3 und laufen an dessen Außenwandung nach unten, bis sie im Bereich der Öffnung 3a abtropfen und somit alle gelösten Konterminierungen abspülen. Der Behälter 3 bewegt sich in Förderrichtung F weiter, bis er eine Stelle erreicht, in der die Öffnung 3a von der Innendüse 6i erreicht werden kann. Dann beginnt die Innendüse 6i zu spritzen und leitet den Strahl in das Innere des Behälters 3 hinein. Die Reinigung der Innenwand beginnt. Der Außen-Spritzstrahl 17a wird aufrechterhalten und läuft im dargestellten Ausführungsbeispiel im Wesentlichen parallel zum Innenspritzstrahl 17i. Fig. 3a shows the beginning of the Abspritzens a container 3, which enters the spray device 1. For the sake of simplicity, only one spray nozzle pair 60A is shown here consisting of two injection nozzles 6a, 6i arranged one behind the other perpendicular to the plane of the drawing. When entering the spray device 1, the container 3 is first struck by external jets 17a into which the container 3 runs. The spray jet 17a hits the outer wall of the container just above the opening 3a and flows over the outside of the container 3 upwards. The spray jet intensity is adjusted so that the spray jet 17a extends over the axial length of the container 3 and over the bottom, indicated by a cloud of droplets 18 passes. The droplets fall back to the bottom of the container 3 and run down its outer wall until they drip off in the region of the opening 3a and thus rinse all dissolved Konterminierungen. The container 3 continues to move in the conveying direction F until it reaches a position in which the opening 3a can be reached by the inner nozzle 6i. Then, the inner nozzle 6i starts to inject and directs the jet into the interior of the container 3. The cleaning of the inner wall begins. The outer spray jet 17a is maintained and runs in the illustrated embodiment substantially parallel to the inner spray jet 17i.

In Fig. 3c ist die mittige Lage erreicht, in der die Spritzstrahlen 17i und 17a im Wesentlichen senkrecht nach oben gerichtet sind, wobei die Tröpfchenwolke 18 des Außenspritzstrahls 17a ihre größte Ausprägung erfährt.In Fig. 3c the central position is reached, in which the spray jets 17i and 17a are directed substantially vertically upward, wherein the droplet cloud 18 of the external spray jet 17a undergoes its greatest expression.

In Fig. 3d steht der Innen-Spritzstrahl 17i kurz davor, die Öffnung 3a zu verlassen, wobei er zweckmäßigerweise anschließend abgeschaltet wird. Der Außenstrahl 17a kann, wie Fig. 3e zeigt, weiterhin aktiv bleiben.In Fig. 3d the inner spray jet 17i is about to leave the opening 3a, wherein it is expediently subsequently switched off. The outer beam 17a can, as Fig. 3e shows, stay active.

Die Arbeitsweise der Spritzvorrichtung mit zwei Spritzdüsenpaaren 60A, 60B ist analog, wobei jedoch, da die Paare 60A, 60B um einen gewissen Abstand in Förderrichtung F versetzt sind, auch die Betätigungsintervalle durch eine geeignete Steuerung versetzt werden.The operation of the spray device with two spray nozzle pairs 60A, 60B is analogous, but since the pairs 60A, 60B are offset by a certain distance in the conveying direction F, the operating intervals are also offset by suitable control.

In Abwandlung des beschriebenen und gezeichneten Ausführungsbeispiels können gegebenenfalls, bei nicht-drehendem Behälter, zwei Außen-Spritzdüsen mit einer einzigen Innen-Spritzdüse auf einer gemeinsamen Drehwelle kombiniert werden, um eine vollständige Rundum-Reinigung zu erreichen, auch kann der Spritzstrahl 17a und 17i synchron spritzen. Die Steuerung der gezeigten Spritzdüsen kann durch andere Mittel erfolgen, auch können Spritzdüsen anderer Konstruktion eingesetzt werden.In a modification of the described and illustrated embodiment may optionally, with non-rotating container, two external spray nozzles are combined with a single internal spray nozzle on a common rotary shaft to achieve a complete all-round cleaning, and the spray jet 17a and 17i synchronously squirt. The control of the spray nozzles shown can be done by other means, also spray nozzles of other construction can be used.

Claims (12)

Spritzvorrichtung (1) für eine Reinigungseinrichtung (2) für Behälter (3), mit einem Behälterförderer (4), mit dem die Behälter (3) mit nach unten weisender Öffnung (3a) transportiert werden, und mit von unten auf den Behälter (3) einwirkenden Spritzdüsen (6), dadurch gekennzeichnet, dass eine auf die Außenseite des Behälters (3) einwirkende Außen-Spritzdüse (6a) vorgesehen ist.Spray device (1) for a cleaning device (2) for containers (3), with a container conveyor (4) with which the containers (3) are transported with the opening (3a) pointing downwards and with the container (3 ) acting spray nozzles (6), characterized in that on the outside of the container (3) acting outside spray nozzle (6a) is provided. Spritzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass neben einer ersten, zum Spritzen durch die Öffnung (3a) ausgerichtete Innen-Spritzdüse (6i) wenigstens eine zweite, auf die Außenseite des Behälters (3) gerichtete Außen-Spritzdüse (6a) vorgesehen ist.Spray device according to claim 1, characterized in that in addition to a first, for spraying through the opening (3a) aligned inner spray nozzle (6i) at least a second, on the outside of the container (3) directed outside spray nozzle (6a) is provided. Spritzvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Außen- und die Innen-Spritzdüse (6a, 6i) auf einer gemeinsamen Düsenwelle (8) angeordnet sind.Spray device according to claim 2, characterized in that the outer and the inner spray nozzle (6a, 6i) are arranged on a common nozzle shaft (8). Spritzvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Außen-und die Innen-Spritzdüse (6a, 6i) jeweils als wenigstens eine Durchgangsbohrung (7) durch die Düsenwelle (8) ausgebildet sind.Spray device according to claim 2 or 3, characterized in that the outer and the inner spray nozzle (6a, 6i) are each formed as at least one through hole (7) through the nozzle shaft (8). Spritzvorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Düsenwelle (8) durch eine Nockensteuerung (14) angetrieben ist.Spray device according to claim 3 or 4, characterized in that the nozzle shaft (8) is driven by a cam control (14). Spritzvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwei Außen-Spritzdüsen (6a) vorgesehen sind.Spray device according to one of claims 1 to 4, characterized in that two external spray nozzles (6a) are provided. Spritzvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Außen-Spritzdüsen (6a) spiegelbildlich zueinander arbeiten.Spray device according to claim 6, characterized in that the external spray nozzles (6a) operate in mirror image to one another. Spritzvorrichtung nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, dass ein erstes und ein zweites Spritzdüsenpaar (60A, 60B) aus jeweils einer Außen- und einer Innen-Spritzdüse (6a, 6i) vorgesehen sind, die auf jeweils einer eigenen Düsenwelle (8) angeordnet sind.Spray device according to one of claims 3 to 7, characterized in that a first and a second spray nozzle pair (60A, 60B) are provided in each case of an outer and an inner spray nozzle (6a, 6i), each of which has its own nozzle shaft (8 ) are arranged. Spritzvorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Spritzdüsenpaare (60A, 60B) spiegelbildlich zueinander angeordnet sind.Spray device according to claim 8, characterized in that the spray nozzle pairs (60A, 60B) are arranged in mirror image to each other. Verfahren zum Reinigen von Behältern (3), der mit nach unten weisender Öffnung (3a) durch eine Spritzvorrichtung (1) nach einem der Ansprüche 1 bis 9 gefördert werden, dadurch gekennzeichnet, dass ein Außen-Spritzstrahl (17a) von unten die Außenseite des Behälters (3) trifft.Method for cleaning containers (3) which are conveyed with downwardly opening (3a) through a spray device (1) according to one of claims 1 to 9, characterized in that an external spray jet (17a) from below the outside of the Container (3) meets. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass neben einem Innen-Spritzstrahl (17i), der von unten durch die Öffnung (3a) in das Innere des Behälters (3) gerichtet wird, wenigstens ein Außen-Spritzstrahl (17a) von unten auf die Außenseite des Behälters (3) gerichtet wird.A method according to claim 10, characterized in that in addition to an internal spray jet (17i), which is directed from below through the opening (3a) in the interior of the container (3), at least one external spray jet (17a) from below on the Outside of the container (3) is directed. Verfahren nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass der Außen-Spritzstrahl (17a) über die axiale Länge des Behälters (3) hinausreicht.A method according to claim 10 or 11, characterized in that the outer spray jet (17a) extends beyond the axial length of the container (3).
EP10165826A 2009-09-01 2010-06-14 Spraying device Active EP2289640B1 (en)

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CN102000685B (en) 2016-08-03
ATE523269T1 (en) 2011-09-15
EP2289640B1 (en) 2011-09-07
BRPI1002896A2 (en) 2012-05-29
US20110048463A1 (en) 2011-03-03
CN102000685A (en) 2011-04-06

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