DE102021106359A1 - Spray nozzle arrangement for a spray station and nozzle body for a spray nozzle of a spray nozzle arrangement - Google Patents

Abstract

The present invention relates to a spray nozzle arrangement (1) for a spray station of a container cleaning machine. The spray nozzle arrangement (1) has at least one spray tube (2) which is provided for supplying a spray medium and extends along a tube axis (RA) with a fluid-carrying interior (2a) and with at least one spray nozzle arranged on the at least one spray tube (2). (3), wherein the at least one spray nozzle (3) has at least one nozzle body (4) with at least one connecting section (11), by means of which the nozzle body (4) can be arranged on the spray pipe (2), the nozzle body (4) by means of its connecting section (11) together with an opening (14) provided in the spray tube (2) in a tube wall of the spray tube (2) forms a quick-action fastening device (SBE) for the detachable fastening of the spray nozzle (3) to the spray tube (2), wherein the connection section (11) for engaging in a provided opening (14) is designed as a quick-connect section (SVA), and wherein the opening (1 4) the quick connection section (SVA) used can be brought into a locking position (VP) and/or a release position (FP) of the quick connection device (SBE) by rotating the nozzle body (4) relative to the opening (14).

Description

The invention relates to a spray nozzle arrangement for a spray station of a container cleaning machine and to a nozzle body for a spray nozzle of such a spray nozzle arrangement. The present invention also relates to a method for detachably connecting a spray nozzle to a spray tube of a spray nozzle arrangement for a spray station of a container cleaning machine.

Cleaning machines for containers, in particular container cleaning machines for bottles used in the beverage industry, are well known. For example, a not inconsiderable proportion of the beverages that are sold are offered in reusable containers made of glass or plastic, which is why the bottles and similar containers have to be cleaned before each use cycle. To clean these containers for their reuse, the above-mentioned cleaning machines are used within the bottling plants, which are known to those skilled in the most varied designs.

Such container cleaning machines have several treatment zones between a container task and a container discharge, through which the bottles or containers are moved with a machine-internal conveyor. Widespread are embodiments in which the containers are individually received in so-called container cells or bottle cells or bottle baskets of the machine-internal conveyor during the cleaning phase and several of these container cells or bottle cells are arranged in a row. For example, the bottle cells are held on endlessly circulating transport chains, by which they are guided through several treatment zones or treatment stations that follow one another in the transport direction. As a rule, these transport chains are permanently driven.

The containers that are individually received in the bottle baskets or bottle cells and conveyed through the cleaning machine in the transport direction pass through several treatment zones during the treatment. Some treatment zones are each designed as a spray zone or spray station, in which the bottles or containers, which are oriented with their bottle or container mouth facing downwards, are treated and sprayed on the inside with jets of a liquid spray or cleaning medium emerging from spray nozzles and/or also sprayed on the outside. For example, within these spraying zones or spraying stations, the interior of the corresponding container accommodated in the container basket is sprayed out, among other things, in order to completely remove foreign bodies or lye residues from the interior of the container. Sufficiently long periods of time are required for the effective and complete cleaning of the containers both for the treatment with the caustic solution and, in particular, for the spraying within the spraying zones or spraying stations.

Since the containers are moved past the spray nozzles or spray device during the movement through the spray station and are therefore only briefly above or above the nozzle outlet in such a way that the spray jet reaches the interior of the container, the period of time is with a rigid arrangement of the spray nozzles of spraying, in particular the spraying time is very short. In particular with a continuously driven machine-internal conveyor, it is therefore customary to design spray nozzles in such a way that the emerging spray jets are pivoted with the containers to achieve a sufficiently long treatment time, with the spray nozzles being opened and closed in a controlled manner.

It is also common in the spray stations to choose arrangements or setups in which several of the spray nozzle arrangements mentioned follow one another in such a way that the containers moving past above the spray nozzle arrangement in the conveying direction successively pass several spray nozzles on their path of movement, so that the containers are repeatedly thrown from the successive spray nozzles arranged one behind the other or spray jets emerging from their spray openings.

Spray stations with spray pipes or spray nozzle assemblies of the type mentioned, namely spray nozzle assemblies for rotating spraying, in which the nozzles rotate, are for example from WO 2009/003586 A1 or the WO 2010/045990 A1 known. In this case, for example, several spray nozzles are provided on a spray or distributor pipe, each consisting of a nozzle element attached to the distributor pipe, which forms a first nozzle channel with a first control opening, which is connected to the interior of the distributor pipe, and one for all spray nozzles spray or nozzle shaft common to the spray or distributor pipe, each of which is provided with a second nozzle channel forming the spray or nozzle opening and a second control opening, in such a way that whenever the two control openings intersect when rotating or pivoting the nozzle shaft ie during a spray phase or a spray angle defined by this overlap, the spray nozzle for delivering a Spray jet opens, but is otherwise closed.

In the prior art, in known spray nozzle arrangements for a spray station of a container cleaning machine, the individual components, in particular the nozzle bodies of the spray nozzles, are connected to one another by means of complex connecting devices, which is very time-consuming and therefore expensive.

It is therefore the object of the present invention to provide a spray nozzle arrangement which eliminates the disadvantages of the solutions known from the prior art and in particular enables a simple and at the same time reliably stable connection of the spray nozzles of the nozzle arrangement.

A spray nozzle arrangement corresponding to the features of claim 1 is designed to solve this problem. Furthermore, to solve the problem, a nozzle body for a spray nozzle of a spray nozzle arrangement according to claim 13 is specified. Furthermore, the object is achieved by a method for detachably connecting a spray nozzle to a spray tube of a spray nozzle arrangement for a spray station of a container cleaning machine according to claim 20. Advantageous developments of the invention are specified in the respective dependent claims. All of the features described are fundamentally the subject matter of the invention, either individually or in any combination, regardless of how they are summarized in the claims or how they relate back to them. Furthermore, the patent claims are made part of the description.

The present invention provides a spray nozzle assembly for a spray station of a container cleaning machine. The spray nozzle arrangement has at least one spray tube, which is provided for supplying a spray medium and extends along a tube axis, with a fluid-carrying interior space and with at least one spray nozzle arranged on the at least one spray tube. Furthermore, the at least one spray nozzle has at least one nozzle body with at least one connecting section, by means of which the nozzle body can be arranged on the spray pipe, wherein the nozzle body, by means of its connecting section, together with an opening provided in the spray pipe in a pipe wall of the spray pipe, has a quick-action fastening device for detachably fastening the Spray nozzle forms on the spray tube. According to the invention, the connecting section for engaging in a provided opening is designed as a quick-connecting section, wherein the quick-connecting section inserted into the opening can be brought into a locking position and/or release position of the quick-connecting device by rotating the nozzle body relative to the opening.

The quick attachment device provided according to the invention provides a stable and positionally fixed connection of the nozzle body to the spray pipe, which can also be released again just as easily.

According to an advantageous embodiment variant, it can be provided that the quick-action fastening device is designed to be adjustable between the locking position and the release position in such a way that the quick-action fastening device in the locking position firmly connects the nozzle body to the spray tube via the opening by rotating it in a first direction of rotation of the nozzle body relative to the spray tube and by turning the nozzle body relative to the spray tube in a second direction of rotation opposite to the first direction of rotation releases the nozzle body again in the release position,

According to a further advantageous embodiment variant, it can be provided that the connection section of the nozzle body designed as a quick-connection section has at least one locking element for a non-positive and/or positive connection in the locking position of the quick-connection device with the opening in the spray pipe.

According to yet another advantageous embodiment variant, it can be provided that the connecting section designed as a quick-connecting section with the at least one locking element engages behind the opening in the pipe wall of the spray pipe in the locking position.

According to yet another advantageous embodiment variant, it can be provided that the quick-action fastening device for a locking connection of the nozzle body to the spray tube is designed as a rotary locking device that creates a non-positive and/or positive connection in the locking position.

According to yet another advantageous embodiment variant, it can be provided that the opening in the tube wall of the spray tube is designed for a precisely fitting engagement of the connecting section of the nozzle body in such a way that the opening together with a respective connecting section forms a secure and sealing quick-action fastening device via which the nozzle body is connected to the spray pipe in a liquid-tight manner, in particular is sealed and inserted into the opening and fixed there.

According to yet another advantageous embodiment variant, it can be provided that the connecting section of the nozzle body has a contact surface, preferably designed as a sealing surface, on the side protruding outwards beyond the outside of the pipe wall of the spray pipe, which is designed in particular for positionally accurate and precisely fitting contact with the spray pipe.

According to yet another advantageous embodiment variant, it can be provided that the contact surface of the respective nozzle body in the locking position comes into contact-fitting contact, in particular over the entire surface, with a flat surface section that completely surrounds the respective opening.

According to yet another advantageous embodiment variant, it can be provided that the opening is formed with play symmetry and has two identical circular arc sections and two identical rectangular sections.

According to yet another advantageous embodiment variant, it can be provided that the cross section of the opening in plan view is adapted to the longitudinal section of the quick-connection section of the connection section of the nozzle body in such a way that the quick-connection section can be passed through the opening and by twisting the nozzle body relative to the spray pipe by the first body axis of the nozzle body can be clamped to the spray pipe.

According to yet another advantageous embodiment variant, it can be provided that a fluid channel connected to the fluid-carrying interior of the spray tube is formed in the nozzle body and the at least one spray nozzle has a spray opening for dispensing a spray jet of the spray medium, characterized in that

According to yet another advantageous embodiment variant, it can be provided that several spray nozzles are provided, which are arranged on the at least one spray tube in such a way that the spray openings are arranged in at least two rows of spray openings, each extending in the direction of the tube axis, and the at least one spray tube thereby at least a first row of first spray openings and at least a second row of second spray openings are associated.

According to a further embodiment variant, it is provided that several spray nozzles are provided, which are arranged on the at least one spray tube in such a way that the spray openings are arranged in at least two rows of spray openings, each extending in the direction of the tube axis, and the at least one spray tube is thereby provided with at least one first row of first spray openings and at least one second row of second spray openings are assigned.

In a particularly advantageous manner, with the present spray nozzle arrangement, containers can be effectively sprayed off or sprayed out in a spraying station with little structural effort. Due to the at least two rows of spray openings per spray pipe, the containers are sprayed by at least two consecutive spray jets on their movement path when crossing the spray nozzle arrangement, whereby only one spray pipe has to be connected to the supply lines, in particular supply and distribution pipes. This not only makes assembly easier, but also reduces assembly and connection costs. Maintenance and replacement in the event of service is also made easier.

Since the present spray nozzle arrangement is configured for both fixed and rotating spraying, the present spray nozzle arrangement is versatile and can be flexibly tailored to different needs and applications by any combination of fixed and rotating sprays.

Each row of spray openings preferably comprises a plurality of spray openings arranged one behind the other at regular intervals in the axial direction of the pipe axis. The arrangement and the mutual distance between the spray openings arranged in the same row preferably corresponds to the pitch or the pitch distance of the container cells or container baskets of the conveyor arranged at a level above the spray nozzle arrangement, in which the containers are accommodated for cleaning and in a conveying direction transverse to the rows of spray orifices are moved. As a result, the spray openings are advantageously arranged in such a way that each spray opening is advantageously located below a container that is being moved past, and so each container accommodated in a corresponding container basket can be sprayed by the spray jet from a spray opening located below.

The rows of spray openings are also preferred in relation to a circumferential direction of the spray pipe are arranged at a predetermined distance from one another.

According to a particularly preferred embodiment, the spray openings of the adjacent rows are offset relative to one another in relation to the axial direction of the pipe axis. The spray openings in the first row are thus each spaced apart from the spray openings in the adjacent second row. For example, it can be advantageously achieved here that the spray jets emerging from the spray openings of the adjacent rows hit the containers to be cleaned in different ways or also at different locations. For example, the containers can be sprayed out and sprayed down effectively for cleaning the inside and outside, or the inside can be sprayed out with differently aligned directions of arrival of the spray jet.

Alternatively and just as preferably, the spray openings of the adjacent rows can be arranged in relation to the axial direction of the pipe axis in such a way that one of the first spray openings in the first row and a respective second spray opening in the second row are arranged in pairs along the pipe axis, with each pair of spray openings in a common vertical plane intersecting the pipe axis perpendicularly. In this way, it can be achieved in particular that each container is repeatedly hit by a spray jet for spraying out and/or spraying off on its path of movement in a chronological sequence.

According to particularly preferred embodiment variants, at least one further row of spray openings is also arranged on the at least one spray tube. As a result, at least three or at least four or more rows of spray openings each extend in the direction of the pipe axis. Three or four or even more rows of spray openings are assigned to each spray tube.

In a preferred variant, the spray openings of a row of spray openings are each formed by a rigid spray provided on each of the spray nozzles. For this purpose, each tip nozzle is equipped with a fixed, essentially immovable nozzle section. This nozzle portion may be an integral part of the nozzle body or formed as a separate element attached to or in the nozzle body. In this variant, the spray jet emerging from the spray opening is always directed in the same direction, with the direction of the spray jet being unchangeable.

In a particularly preferred embodiment variant, the spray openings of a row of spray openings are each formed by rotating spraying. For this purpose, at least one spray shaft common to a plurality of spray nozzles is preferably provided, with the at least one spray shaft being carried jointly by the respective nozzle bodies of the associated spray nozzles. In such a rotary spraying, the spraying shaft is driven and rotates in a synchronously controlled manner with the conveyor, which causes the containers to move in the conveying direction. The drive and control of such a rotating spray shaft takes place in a manner known to those skilled in the art.

With such rotating spraying, the spray jet emerging from the spray openings moves with the container conveyed in the conveying direction at least over a specific, predetermined angular range, ie the spray jet follows the container over a section of its movement path. In a manner that is also known to those skilled in the art, the spray openings are opened and closed in a controlled manner, specifically due to the rotation of the spray shaft, among other things, so that the spray jet is actually sprayed out only in the desired manner and desired direction.

With the present invention, it is advantageously possible to design one or more of the rows of spray openings as a rigid spray and at the same time to provide a rotating spray for one or more rows. It goes without saying that any combination of rigid and rotating spraying is possible here. A plurality of rows of spray openings are thus provided for each spray pipe, which are configured as fixed and/or rotating spraying, ie each individual row can be a fixed or rotating spray.

The spray tube advantageously has a tube wall, with a multiplicity of openings being formed in the tube wall for respectively supporting and sealingly receiving a nozzle body, and with a nozzle body being inserted and sealed in each of the openings.

For example, the several openings in the pipe wall are also lined up one behind the other in the axial direction of the pipe axis, namely arranged in a row, in such a way that the openings also form at least two rows of openings corresponding to the rows of spray openings. In this variant, a nozzle body is accommodated and fastened in each opening, with exactly one spray opening being provided with each nozzle body accommodated. In this case, the number, arrangement and distribution of the openings correspond that number, arrangement and distribution of the spray openings.

In alternative embodiments, in which a respective nozzle body is designed to provide two spray openings, for example by the nozzle body being formed as a bifurcated body and the fluid channel formed in the nozzle body branching and thereby “serving” two spray openings, a single row of openings in the spray tube is sufficient to form two rows of spray holes.

Each nozzle body is preferably designed for sealing and preferably releasable attachment to the spray tube and for this purpose has in particular a connecting section, the connecting section being sealingly and securely held in the opening in the tube wall of the spray tube. In this preferred embodiment, the opening in the pipe wall of the spray pipe and the connecting section of the nozzle body fitting precisely into the opening form a fastening device, in particular a quick-action fastening device for the secure and liquid-tight connection of the spray nozzle to the spray pipe.

The spray pipe can have a circular or essentially circular cross-sectional shape or a polygonal or essentially polygonal cross-sectional shape. For example, quadrangular, preferably rectangular or diamond-shaped, particularly preferably square, cross-sectional shapes are particularly suitable, but also pentagonal, hexagonal or oval cross-sectional shapes.

According to an advantageous embodiment variant, a spraying device for a spraying station of a container cleaning machine is also proposed. The spray device has at least one feed or distributor pipe with at least one connecting line and at least one spray nozzle arrangement which is fluidically connected to the feed or distributor pipe via the at least one connecting line. The spray nozzle arrangement comprises a spray tube which is provided for supplying a spray medium and extends along a tube axis along its length and has a fluid-carrying interior which is equipped with a plurality of spray nozzles arranged on the at least one spray tube. Each spray nozzle has at least one nozzle body attached to the spray tube, with a fluid channel connected to the fluid-carrying interior of the spray tube being formed in each nozzle body. Each spray nozzle has a spray opening for delivering a spray jet of the spray medium. The spray device is particularly characterized in that the several spray nozzles are arranged on the at least one spray pipe of the spray nozzle arrangement in such a way that the spray openings are arranged in at least two rows of spray openings each extending in the direction of the pipe axis. As a result, at least one first row of first spray openings and at least one second row of second spray openings are assigned to the at least one spray tube.

At least two spray nozzle arrangements are preferably provided in the spray device and are fluidically connected to the feed or distributor pipe. The at least two spray nozzle arrangements are arranged in such a way that the respective tube axes of the spray tubes run parallel or essentially parallel to one another. An additional transverse distributor pipe is advantageously provided here, connected to the supply or distributor pipe, to which the respective spray pipes of the spray nozzle arrangements are connected by means of respective connecting lines. In this preferred embodiment, the spray device is advantageously designed in such a way that the containers to be cleaned cross at least four rows of spray nozzles on their path of movement, as a result of which particularly effective cleaning can be achieved with a simple structural design.

The present invention also relates to a nozzle body of a spray nozzle of a spray nozzle arrangement. The nozzle body is designed for attachment to a spray pipe of the spray nozzle arrangement and for this purpose has a connection section at a connection end provided for connection to the spray pipe. The nozzle body is detachably arranged on the spray tube by means of the connecting section, the nozzle body having at least one spraying section at a spraying end opposite the connecting end and a continuous fluid channel opening at the connecting end and at the spraying end is formed in the nozzle body. The nozzle body is characterized in particular by the fact that the connecting section for engaging in an opening provided in a pipe wall of the spray tube is designed as a quick-connecting section, which can be brought into a locking position and/or a release position by rotating the nozzle body relative to the opening.

According to an alternative embodiment, it can be provided that the connection section of the nozzle body designed as a quick-connection section has at least one locking element for a non-positive and/or positive connection in the locking position of the quick-connection device with the opening in the spray pipe.

According to a further alternative embodiment, it can be provided that the connecting section of the nozzle body has a contact surface, preferably designed as a sealing surface, on the side protruding outward beyond the outside of the pipe wall of the spray pipe, which is designed in particular for positionally accurate and precisely fitting contact with the spray pipe.

According to yet another alternative embodiment, it can be provided that the system section has at least one sealing element, in particular a sealing ring.

According to yet another alternative embodiment, it can be provided that the connection section of the nozzle body designed as a quick-connect section has the at least one locking element, which is provided on a tubular section of the nozzle body coaxially enclosing the first body axis and extends radially outwards starting from the first body axis and is designed as a locking finger and / or projection.

According to yet another alternative embodiment, it can be provided that the at least one locking element has a contact surface oriented obliquely, in particular at an acute angle to the first body axis, on its upper side facing the injection section.

According to yet another alternative embodiment, it can be provided that the at least one spray section is configured for a fixed or rotating spray and is designed to accommodate a stationary nozzle section of a rigid spray or to accommodate a rotating spray shaft of a rotating spray.

The connecting section of the nozzle body is preferably designed in such a way that it is part of a fastening device, in particular a quick fastening device, preferably a rotary locking device, and corresponds to the opening in the tube wall of the spray tube or interacts with it in a precisely fitting and complementary manner. In the present case, this can also be understood to mean that the connecting section of the nozzle body together with the opening provided for fastening in the tube wall of the spray tube forms such a fastening device, in particular a quick fastening device, preferably a rotary locking device.

The nozzle body is particularly preferably designed in the form of an angled body, with a lower section of the nozzle body carrying the connecting section extending along a first body axis and an upper section having the spray section extending along a second body axis. The body axes enclose an obtuse angle or a right or essentially right angle.

In particular, in the case of the angled nozzle bodies, the fluid channel, which extends continuously from the connection end to the spray end, has a first section facing the connection end and a second section facing the spray end. The sections here also run at an angle to one another and the first section extends along the first body axis and the second section along the second body axis. The sections of the fluid channel thus also enclose an obtuse angle or a right or essentially right angle. Depending on the cross-sectional shape of the spray tube used for attachment, the angle can be optimally selected for the respective application and can be, for example, in a range from around 90° to around 170°, preferably in a range from around 110° to 150°, particularly preferably in a range from 120° to 140° and most preferably around 135°. Due to the angled shape, a secure sealing attachment to the spray pipe and at the same time an upward alignment of the spray jet caused by the nozzle body can be guaranteed.

The spray section is preferably designed to support a rotating spray shaft and forms a receiving space for the spray shaft. This receiving space can be formed by a closed ring structure of the nozzle body, into which the spray shaft can be pushed or inserted, for example along its length. Alternatively, the receiving space can also be formed by a concavely curved, open receiving curvature of the nozzle body, into which the spray shaft can be inserted. In the latter case, a cage-like or bracket-like securing element is preferably additionally provided which is pivotably linked to the nozzle body and with which the receiving space can be closed. For example, a latching mechanism is provided for this purpose with corresponding latching means formed on the securing element and on the nozzle body, via which the securing element can be fixed in its closed position holding the spray shaft.

According to a further, alternative embodiment, the at least one spray section is equipped with a stationary nozzle section for rigid spraying. The stationary nozzle section can be designed in one piece with the nozzle body and molded into it be. The stationary nozzle section can also be designed as a separate element which is attached to or in the nozzle body, for example screwed to it.

According to a further alternative embodiment, the nozzle body is designed in the form of a forked, essentially Y-shaped body. A lower section of the nozzle body that carries the connecting section bifurcates into two upper sections, each having a spray section. In this embodiment, the fluid channel branches from the connection section to the respective spray sections. In this embodiment variant, two spray nozzles with two spray openings can be formed via a nozzle body. For example, a multiplicity of forked nozzle bodies can be inserted into a single row of openings in the spray tube, thereby forming two rows of spray openings.

According to a further aspect, the present invention also relates to a method for detachably connecting a spray nozzle to a spray tube of a spray nozzle arrangement for a spray station of a container cleaning machine, in which a spray medium via a spray tube extending along its length along a tube axis is connected to a fluid-conducting interior space and to at least one is supplied to the spray nozzle arranged at least one spray tube, in which the at least one spray nozzle has at least one nozzle body with at least one connecting section, by means of which the nozzle body is arranged on the spray tube, in which the nozzle body is connected by means of a connecting section together with an opening provided in the spray tube is releasably attached to the spray pipe in a pipe wall of the spray pipe by means of a quick-action fastening device, in which the connection section is inserted into an opening provided as a quick-connection section in E is brought into engagement, and in which the quick-connect portion inserted into the aperture is brought into a locking position and/or a release position of the quick-connect device by rotating the nozzle body relative to the aperture.

According to an advantageous embodiment variant, it can be provided that the quick-action fastening device is adjusted between the locking position and the release position in such a way that the quick-action fastening device in the locking position firmly connects the nozzle body to the spray tube via the opening by rotating it in a first direction of rotation of the nozzle body relative to the spray tube and by turning the nozzle body relative to the spray tube in a second direction of rotation opposite to the first direction of rotation releases the nozzle body again in the release position,

According to a further advantageous embodiment variant, it can be provided that the connecting section designed as a quick-connection section with the at least one locking element to establish the locking position is first inserted with the connecting section together with the locking element into the opening in the pipe wall of the spray tube and then rotated relative to the opening.

According to yet another advantageous embodiment variant, it can be provided that the nozzle body is rotated between the locking position and the release position of the quick-connection device about a first body axis of the nozzle body, so that a quick-connection device designed as a rotary locking device is achieved, which in the locked position has a non-positive and/or non-positive connection forms a positive connection.

According to yet another advantageous embodiment variant, it can be provided that, in order to reach the locking position, the at least one locking element is guided through the opening and rotated relative to the spray tube from the release position to the locking position in such a way that the at least one locking element engages behind the opening and attaches itself the flat surface section on the side facing away from the spray section at least partly around the perforation around the flat surface section, in particular comes to rest in a contact-locked manner.

According to yet another advantageous embodiment variant, it can be provided that the sloping contact surface of the at least one locking element is brought to clamping and contact-locking contact with the flat surface section of the spray pipe on the side of the pipe wall of the spray pipe facing away from the spray section by the rotation of the quick-connection section, so that the nozzle body in the flat surface section on the side facing the spray section is pressed with the contact surface of the nozzle body against the flat surface section in the locking position and the free edge area of the opening is held in a clamped manner between the contact surface and the inclined contact surface of the at least one locking element.

• 1 eine stark vereinfacht und nur grob schematisch skizzierte Darstellung einer Spritzvorrichtung mit einer Spritzdüsenanordnung gemäß einer Ausführungsform der Erfindung,
• 2 eine stark vereinfacht und nur grob schematisch skizzierte Darstellung einer Spritzvorrichtung mit einer Spritzdüsenanordnung gemäß einer Ausführungsform der Erfindung,
• 3a stark vereinfacht und schematisch dargestellt eine Ausführungsform der Spritzdüsenanordnung in einer Schnittdarstellung,
• 3b eine schematische Draufsicht auf eine beispielhafte Ausführungsvariante einer Durchbrechung in einer Rohrwandung des Spritzrohres,
• 4a bis c eine Ausführungsform eines Düsenkörpers in einer perspektivischen Ansicht (4a), in einer seitlichen Ansicht (4b) und in einer Schnittdarstellung (4c)
• 5a bis c eine weitere alternative Ausführungsform eines Düsenkörpers in einer perspektivischen Ansicht (5a), in einer seitlichen Ansicht (5b) und in einer Schnittdarstellung (5c),
• 6a bis 6c eine weitere alternative Ausführungsform eines Düsenkörpers in einer perspektivischen Ansicht (6a), in einer seitlichen Ansicht (6b) und in einer Schnittdarstellung (6c), und
• 7a bis 7c eine noch weitere alternative Ausführungsform eines Düsenkörpers in einer perspektivischen Ansicht (7a), in einer seitlichen Ansicht (7b) und in einer Schnittdarstellung (7c).

The invention is explained in more detail below with reference to the figures of exemplary embodiments. Show it:

• 1 a greatly simplified and only roughly schematically sketched representation of a spray device with a spray nozzle arrangement according to an embodiment of the invention,
• 2 a greatly simplified and only roughly schematically sketched representation of a spray device with a spray nozzle arrangement according to an embodiment of the invention,
• 3a greatly simplified and schematically shown an embodiment of the spray nozzle arrangement in a sectional view,
• 3b a schematic top view of an exemplary embodiment variant of an opening in a tube wall of the spray tube,
• 4a until c an embodiment of a nozzle body in a perspective view ( 4a) , in a lateral view ( 4b) and in a sectional view ( 4c )
• 5a until c another alternative embodiment of a nozzle body in a perspective view ( 5a) , in a lateral view ( 5b) and in a sectional view ( 5c ),
• 6a until 6c another alternative embodiment of a nozzle body in a perspective view ( 6a) , in a lateral view ( 6b) and in a sectional view ( 6c ), and
• 7a until 7c yet another alternative embodiment of a nozzle body in a perspective view ( 7a) , in a lateral view ( 7b) and in a sectional view ( 7c ).

Identical reference symbols are used in the figures for elements of the invention that are the same or have the same effect. Furthermore, for the sake of clarity, only reference numbers that are required for the description of the respective figure are shown in the individual figures.

The spray nozzle arrangement denoted generally by 1 in the figures is, for example, a component of a spray device in a spray station of a cleaning machine, e.g. a bottle or container cleaning machine for cleaning containers or bottles.

In such container cleaning machines, which generally include one or more spraying stations with corresponding spraying devices with a spray nozzle arrangement, a machine-internal conveyor is provided in an interior space of the container cleaning machine formed by a closed housing, with which the containers to be cleaned are transported through the container cleaning machine along a transport route in a conveying direction indicated in the figures by the dashed arrow F. The conveying direction F of the containers runs transversely, in particular perpendicularly or essentially perpendicularly to a longitudinal axis LA of the spray nozzle arrangement 1.

During the cleaning phase, in particular during the passage through the spraying station, the containers are generally held individually and with their container opening pointing downwards in so-called container cells, which can also be referred to as container carriers or baskets, in a manner known to those skilled in the art. wherein a plurality of these container cells are arranged in a row next to each other and the containers accommodated in the container cells are transported through the injection station in these rows. Depending on the number of containers in a row or container cells in a row, each spray station has a spray nozzle arrangement 1 with a plurality of spray nozzles 3, which are evenly spaced from one another in the direction of the longitudinal axis LA of the spray nozzle arrangement 1, in particular at a pitch corresponding to the division of the rows of containers or the Pitch of the container cell rows corresponding distance to each other are arranged.

The spray nozzle arrangement 1 is in the container cleaning machine or in the local spraying station as a stationary machine component or machine unit, i.e. not moving with the machine-internal conveyor for the containers linearly in the conveying direction F of the containers, arranged below the transport path on which the containers are moved past.

the 1 and 2 each show a spray device with a respective preferred embodiment variant of the spray nozzle arrangement 1 in a greatly simplified and only roughly schematically sketched overview. The spray nozzle arrangement 1 comprises a spray pipe 2 for supplying a suitable spray medium or cleaning medium used for cleaning the containers, which can be water, for example , A cleaning solution, a water-lye mixture or similar cleaning agent, for example, an acidic cleaning agent. The spray tube 2 has a fluid-carrying interior space 2a (in the 1 and 2 not apparent, see e.g 3 ) and extends along its length along a tube axis RA, which in the examples is coaxial with the longitudinal axis LA Spray nozzle assembly 1 runs and coincides with it.

In a manner known to those skilled in the art, the spray tube 2 is fluidly connected to a feed tube 8 designed as a longitudinal tube, which also extends along its length in the direction of the longitudinal axis LA and is arranged on a lower support frame, not shown in the figures. The feed tube 8 can also be understood as a longitudinal distributor tube and is fluidly connected to the spray tube 2 via at least one connecting line 9 or a channel 9 .

A large number of spray nozzles 3 are arranged on the spray pipe 2, with each spray nozzle 3 having at least one nozzle body 4 fastened to the spray pipe 2 and with a fluid channel 5 connected to the fluid-carrying interior space 2a of the spray pipe 2 (into the 1 and 2 not visible) is formed. The nozzle body 4 is below in connection with the 3 until 7 described in more detail.

Each spray nozzle 3 of the spray nozzle arrangement 1 has a respective spray opening 7, 7' for releasing a spray jet of the spray medium, in such a way that the spray medium can be released or sprayed out via the spray opening 7, 7' as a spray jet, with the spray jet being in Is oriented essentially upwards, namely in the direction of the containers transported past above and also reaches the interior of the respective containers through the container openings pointing downwards, as a result of which these can be sprayed off and also sprayed out on the inside.

In the present spray nozzle arrangement 1, the multiple spray nozzles 3 are arranged on the spray pipe 2 in such a way that the spray openings 7, 7' are in at least two rows R, R' of spray openings 7, 7', each extending in the direction of the pipe axis RA, namely at least in a first row R of first spray openings 7 and at least a second row R' of second spray openings 7'. Each spray tube 2 is thus assigned a plurality of spray nozzles 3 whose spray openings 7, 7' form at least a first row R and a second row R' of spray openings 7, 7'. The first and second rows R, R' of spray openings 7, 7' run at a distance from one another along the spray tube 2 and in particular essentially parallel to one another and preferably parallel to the tube axis RA. The two rows R, R' of spray openings 7, 7' are thus at a distance d relative to the circumference of the spray tube 2 (see FIG 3 ) arranged to each other.

The variants of the 1 and 2 differ mainly by the design of the spraying, namely the nozzle mechanism provided for the spraying or nozzle function, which can be formed by corresponding nozzle sections or nozzle elements of the spray nozzles 3 or by a spray shaft common to several spray nozzles 3 . In the present case, spraying is to be understood as that structure via which the spray jet is ultimately discharged by means of a nozzle function and which provides a nozzle outlet or a nozzle opening which forms the spray opening 7, 7'.

The spray nozzle assembly 1 of the variant according to 1 has both rows R, R' on a rigid or fixed spray. With this rigid or fixed spraying, a fixed nozzle section 6 is provided for each individual spray nozzle 3 . The stationary nozzle section 6 can be arranged on or in the nozzle body 4, is immovable relative to the respective nozzle body 4 of the spray nozzle 3 and has a respective nozzle opening or nozzle outlet opening. The spray openings 7, 7' are formed here by the respective nozzle openings or nozzle outlet openings of the fixed nozzle sections 6 of the respective spray nozzles 3. The stationary nozzle section 6 of a spray nozzle 3 can be molded into the nozzle body as an integral part of the nozzle body, or it can alternatively be designed as a separate nozzle element that is fastened in or on the nozzle body 4, for example screwed in.

The spray nozzle assembly 1 of the variant according to 2 has rotating spraying with at least one spray shaft or nozzle shaft 10, 10' common to several spray nozzles 3, the spray shaft 10, 10' being rotatably mounted in the nozzle bodies 4 of several spray nozzles 3. In the example shown 2 two spray shafts or nozzle shafts 10, 10' are provided. Each spray shaft 10, 10' is assigned to a plurality of spray nozzles 3 which provide the respective first and second rows R, R' of spray openings 7, 7' and are themselves arranged in a row along the spray pipe 2. In other words, the first row R of spray openings 7 is formed by the respective spray nozzles 3 also arranged in a row together with the spray shaft 10 and the second row R' of spray openings 7' accordingly by the respective spray nozzles 3 also arranged in a row together with the Splash shaft 10'.

The rotating spray described above, namely the common for several spray nozzles 3, rotatably mounted on the respective nozzle bodies 4 of the several spray nozzles 3 spray or Nozzle shaft 10, 10' is designed in a manner known to those skilled in the art. For example, the rotatable or pivotable spray or nozzle shaft 10, 10' can be provided with an actuator at least at one end, via which the spray or nozzle shaft 10, 10' can be rotated or moved synchronously with the transport movement of the container baskets transported past above . Such an actuator can be designed, for example, as a drive star or star element, in particular as a four-beam star element, with correspondingly assigned driver rollers. Synchronous rotation of the spray or nozzle shaft 10, 10' with the movement of the conveyor and thus with the movement of the containers transported past in the conveying direction is conveyed or driven via the actuator and corresponding driver elements on the machine-internal conveyor. For example, in this way the spray jet can be emitted over a defined angular range and can follow the containers on their movement path over this angular range. In a manner also known to those skilled in the art, the spray openings 7, 7' are also opened in a controlled manner, so that the spray jet is released only in the desired manner and in particular only within a predetermined, desired angular range.

In the present understanding, in all mentioned forms of spray pipes 2, the pipe wall is designed to run around the pipe axis RA in the circumferential direction U, wherein in the case of pipes with a polygonal cross-section the adjoining side surface sections together form the lateral surface designed to enclose the pipe axis RA in the circumferential direction U.

In the tube wall of the spray tube 2, several openings 14 are formed corresponding to the arrangement of the spray nozzles 3 (cf. 3a and 3b) . The openings 14 in the tube wall serve on the one hand to fasten or fix or fix the spray nozzles 3, in particular the nozzle body 4 on the spray tube 2 and on the other hand to establish the fluid connection between the spray tube 2 and the spray nozzles 3, namely to establish the fluid connection between the fluid-carrying interior 2a of the spray tube 2 and the fluid channel 5 formed in the nozzle body 4 of the nozzle body 4 fastened at the respective position of an opening 14.

In the present spray nozzle arrangement 1, the spray pipe 2 is preferably designed in such a way that the plurality of openings 14 provided in the pipe wall are arranged in at least two rows R, R' of spray openings 7, 7', with each row of openings 14 in the longitudinal direction of the spray pipe 2, namely in the direction of the pipe axis RA, and the at least two rows of openings 14 are arranged at a distance d from one another.

With both respective in the 1 and 2 variants of the spray nozzle arrangement 1 shown, exactly two rows R, R′ of spray openings 7, 7′ are provided and, as a result, exactly two rows of openings 14 are also formed in the spray tube 2. However, it goes without saying that embodiments with three or four or more rows R, R′, R″ of spray openings 7, 7′, 7″ and correspondingly associated openings 14 in the spray tube 2 are also conceivable. The spray nozzle arrangement 1 optimally equipped for each application can be provided through various possible combinations of rotating and fixed spraying in the spray nozzles 3 of the individual rows R, R', R". For example, in at least one of the several rows R, R', R "a rotating spray with spray shaft 10, 10' can be provided and at the same time in at least one of the several rows R, R', R" a rigid spray.

It is understood that in addition to the 1 and 2 Variants of spray devices shown are also conceivable in which several spray nozzle arrangements 1 are provided and are fluidly connected to a common feed or distributor pipe 8 . In this case, an additional transverse distributor pipe connected to the supply or distributor pipe 8 is preferably provided, to which the respective spray pipes 2 of the several spray nozzle arrangements 1 are connected by means of a respective corresponding, namely a respectively associated, connecting line 9 .

With reference to the 3a an example of an embodiment variant of a spray nozzle arrangement 1 is shown in a sectional view, specifically in a sectional view with the direction of the section in a vertical section plane which perpendicularly intersects the pipe axis RA. In the exemplary embodiment, the spray tube 2 is designed as a square tube, with a row of spray nozzles 3 being arranged on each of two adjacent side surface sections 2.1, 2.2 of the tube wall of the spray tube 2, and as a result the two rows R, R' extending along the spray tube 2. are formed by spray openings 7, 7'.

The side surface sections 2.1, 2.2 of the tube wall of the spray tube 2 each have a large number of openings 14 lined up in the axial direction of the tube axis RA, with a respective nozzle body 4 being fastened in each opening 14. So they are too Openings 14 in the tube wall of the spray tube 2 are arranged in rows which correspond to the two rows R, R' of spray openings 7, 7'. Here, in particular, the arrangement and the relative spacing of the individual openings 14 to one another essentially corresponds to the arrangement and the relative spacing of the spray openings 7, 7'.

Opposite the connection end having the connection section 11, the nozzle body 4 has a spray end with a spray section 12 on which the spray opening 7, 7' is provided. The example of 3 shows a rotating spray. In this case, the injection section 12 is designed at the injection end of the nozzle body 4 for the supporting reception and rotatable mounting of the injection shaft 10, 10'. The plurality of nozzle bodies 4, which are arranged on the side face 2.1, carry the spray shaft 10 which they share, whereby the first row R of spray openings 7 is formed. In a similar manner, the several nozzle bodies 4 arranged on the side surface 2.2 carry the spray shaft 10' which they share, whereby the second row R' of spray openings 7' is formed.

In the exemplary embodiment of the 3 the nozzle body 4 is designed in the form of an angled body, the lower part of the nozzle body 4 having the connecting section 11 and the upper part having the spray section 12 enclosing an angle, preferably an obtuse angle. Along with the angled shape of the nozzle body 4, the fluid channel 5 formed in the nozzle body 4 also has a first section 5.1 facing the fluid-carrying interior space 2a of the spray tube 2 and a second section 5.2 adjoining it at an angle and facing the spray opening 7, 7'. 4 shows the exemplary nozzle body of FIG 3 in different views in a state not connected to the spray pipe 2 .

With reference to the 4 as well as on the 5 until 7 , in which further preferred embodiment variants of the nozzle body 4 are shown, the nozzle body 4 is described in more detail. In all 4 until 7 the nozzle body 4 is shown in a perspective view (the respective figure a), in a side view (the respective figure b) and in a sectional view (the respective c ) shown.

All in the 4 until 7 Nozzle bodies 4 shown are designed in particular for rotating spraying and, for this purpose, are designed at their respective spraying end with a spraying section 12 for the supporting reception and rotatable mounting of the spraying shaft 10, 10'. In the 5 and 6 variants of the nozzle body 4 shown are like that variant of 4 also designed in the form of an angled body, the fluid channel 5 having two sections 5.1, 5.2 standing at an angle to one another. In the 7 The shown variant of the nozzle body 4 is straight in shape with a straight fluid channel 5 .

In the case of the angled nozzle bodies 4, the lower part of the nozzle body 4 that has the connecting section 11 and the first section 5.1 of the fluid channel 5 extends along a first body axis KA1. The upper section having the spray section 12 and the second section 5.2 of the fluid channel 5 facing the spray opening 7,7' extends along a second body axis KA2. The two body axes KA1, KA2 enclose an obtuse angle, which is around 135° in the examples shown. It goes without saying that, depending on the configuration of the cross-sectional shape of the spray tube 2, other angles, for example a right or essentially right angle, can be preferred.

A receiving space for the spray shaft 10, 10' is formed in the spray section 12 of a respective nozzle body 4, with a concave contact surface 13 being provided in the receiving space, which is used for tight contact against the lateral surface of the spray shaft 10, 10' and is concave for this purpose is curved, namely with a radius which is equal to or approximately equal to half the outer diameter of the spray shaft 10, 10', so that the contact surface 13 forms a surface which is complementary to a section of the lateral surface of the spray shaft 10, 10'.

The contact surface 13 is designed in such a way that it receives the spray shaft 10, 10' in sealing contact over part of its circumference and also forces it into sealing contact with the remaining inner surface of the receiving space in the spray section 12, with the contact surface 13 for this purpose, for example, being provided with a spring-loaded insert part or insert piece 20 is formed, which is accommodated in the nozzle body 4. In the variant according to 4 protrudes the insert 20 with its contact surface 13 formed compared to the embodiment of 6 further into the recording room. The receiving space in the spray section 12 is in the examples 4 , 6 and 7 each formed by a peripheral, closed ring structure 21 . An inner diameter of the ring structure 21 preferably corresponds approximately to the outer diameter of the spray shaft 10, 10'.

The contact surface 13 and preferably the entire inner surface of the receiving space in the spray Section 12 are such that the spray shaft 10, 10' can rotate with as little friction as possible, preferably unhindered. This is brought about, for example, by the fact that the nozzle body 4 is made of a very high-quality plastic material with extremely low coefficients of friction, particularly in the area of the contact surface 13 and/or the inner surface of the receiving space in the injection section 12 .

The nozzle bodies 4 are basically made, for example, from a plastic, in particular from a plastic that is inert or resistant to cleaning agents. The material of the nozzle body is advantageously chosen so that it is stable and strong enough to withstand the mechanical requirements and in particular to ensure the safe, firm and locking connection with the spray tube 2, the material being elastic enough to easily get into the Opening 14 to be used in the spray tube and sealingly against the spray tube 2 rests. The nozzle bodies 4 are preferably injection molded parts that are produced using an injection molding process.

In the example of 5 is different from the examples according to 4 , 6 and 7 in the area of the spray section 12 of the nozzle body 4, the concave receiving space is designed to be open at the top, with a pivotable, cage-like or bracket-like securing element 18 also being provided here, which is articulated on the nozzle body 4 and for securing the spray shaft 10 received in the receiving space, 10' serves. The cage-like or bracket-like securing element 18, if the securing element 18 is in its open position, allows an injection shaft 10, 10' to be inserted into the receiving space from above, with the securing element 18 after inserting the injection shaft 10, 10' in its closed position can be pivoted and locked accordingly on the nozzle body by a locking mechanism 19 provided.

For fastening the nozzle body 4 to the spray tube 2 , each nozzle body 4 has a connecting section 11 at its end facing the spray tube 2 , which can also be referred to as the connecting end. According to the invention, the connecting section 11 of the nozzle body 4 is designed as a quick-connecting section SVA and in particular represents a section serving as a connecting and locking section, for example a twist-locking section.

Each of the openings 14 in the tube wall of the spray tube 2 is designed for a suitable or precisely fitting engagement of the connecting section 11 of the nozzle body 4 provided as the quick-connecting section SVA, in such a way that each opening 14 together with a respective connecting section 11 forms a secure and sealing quick-connecting device SBE is formed, via which the nozzle body 4 is liquid-tight and fixed, ie in a defined position, but releasably connected to the spray tube 2, namely sealed inserted into the opening 14 and fixed there. For example, the quick-action fastening device SBE for the liquid-tight, secure connection of the nozzle body 4 to the spray tube 2, which is locked in a locking position VP, can be designed as a rotary locking device which produces a non-positive and/or positive connection in the locking position VP and the nozzle body 4 in a release position FP releases from the spray tube 2 again.

In other words, the nozzle body 4, by means of its connecting section 11 together with an opening 14 provided in the spray tube 2 in a tube wall of the spray tube 2, forms the quick-action fastening device SBE for detachably fastening the spray nozzle 3 to the spray tube 2. For this purpose, the connecting section 11 of the nozzle body 4 is designed as a quick-connection section SVA for engaging in a provided opening 14, with the quick-connecting section SVA inserted into the opening 14 being turned into a locking position VP and/or a release position FP by rotating the nozzle body 4 relative to the opening 14 the quick connection device SBE can be brought.

The quick-action fastening device SBE is advantageously designed to be adjustable between the locking position VP and the release position FP in such a way that the quick-action fastening device SBE in the locking position VP can fix the nozzle body 4 by rotating it in a first direction of rotation of the nozzle body 4 relative to the spray tube 2, but can be released with the spray tube 2 via the opening 14 and by turning the nozzle body 4 relative to the spray tube 2 in a second direction of rotation opposite to the first direction of rotation releases the nozzle body 4 again in the release position FP, i.e. solves it.

It can also advantageously be provided for this purpose that the connection section 11 of the nozzle body 4 designed as a quick-connection section SVA has at least one locking element 15 for the non-positive and/or positive connection in the locking position VP of the quick-connection device SBE with the opening 14 of the spray tube 2.

The connecting section 11 designed as a quick-connecting section SVA with the at least one locking element 15 for establishing the locking position VP can also be inserted first with the connecting section 11 together with the locking element 15 into the opening 14 in the pipe wall of the spray tube 2 and then by approximately 40° relative to be twisted to the opening 14.

Furthermore, it can also be provided that the connecting section 11 designed as a quick-connecting section SVA engages behind the opening 14 in the pipe wall of the spray pipe 2 with the at least one locking element 15 in the locking position VP.

The nozzle body 4 is preferably designed to be rotatable about a first body axis KA1 of the nozzle body 4 between a locking position VP and a release position FP of the quick-connection device SBE. As a result, the quick-action fastening device SBE is designed as a rotary locking device which produces a force-fitting and/or form-fitting connection in the locking position VP. The quick fastening device SBE for the liquid-tight, securing and locking connection of the nozzle body 4 to the spray tube 2 is preferably designed as a rotary locking device which produces a non-positive and/or positive connection in a locking position VP.

Each of the openings 14 in the tube wall of the spray tube 2 is designed for a suitable or precisely fitting engagement of the connecting section 11 of the nozzle body 4 in such a way that each opening 14 together with a respective connecting section 11 forms a secure and sealing quick-action fastening device SBE, via which the nozzle body 4 is connected to the spray tube 2 in a liquid-tight manner, namely is inserted in a sealed manner into the opening 14 and fastened there.

In the assembled state, the nozzle body 4 forming the continuous fluid channel 5 extends into the fluid-carrying interior space 2a of the spray tube 2 and lies with at least one locking element 15 forming an undercut in the form of a projection (cf. 4 ) of its connecting section 11 on an inside of the pipe wall, as a result of which the nozzle body 4 is securely held and fixed in the locking position VP. In particular, the at least one locking element 15 can therefore be designed as a projection protruding in relation to the outer lateral surface of the connecting section 11 .

The connecting section 11 of the nozzle body 4 also has, on the side protruding outward beyond the outside of the tube wall of the spray tube 2, a contact surface AF, preferably designed as a sealing surface 16, which is designed in particular for positionally accurate and precisely fitting contact with the spray tube 2. An edge section of the opening 14 is accommodated, at least in sections, to fit between the sealing surface 16 and the locking element 15 designed as a projection.

The system section AF, which is preferably embodied as a sealing surface 16, is designed in terms of its shape in such a way that it is preferably complementary to the shape of that section of the peripheral surface of the spray tube 2 which surrounds the opening 14 and against which the system section AF lies flat . In addition, the system section AF can have at least one sealing element 17, for example a sealing ring, which additionally supports the sealing position of the nozzle body 4 on the spray pipe 2 in the locking position VP.

In the locking position VP, the contact surface AF of the respective nozzle body 4 can come into contact with a flat or planar surface section FA surrounding the respective opening 14 over its entire surface.

In particular, the geometric dimensioning of the contact surface FA of the respective nozzle body 4 is adapted to the opening 14 in such a way that the contact surface AF does not reach through the opening 14 in the locking position VP or in the release position FP or can be passed through the opening 14, but rather itself on the flat surface section FA of the spray tube 2 is supported, in particular comes into contact with the system.

the 3b shows a schematic plan view of an exemplary embodiment variant of an opening 14 in a pipe wall of the spray tube 2. In particular, the opening 14 can be designed symmetrically and have two identical circular arc sections 14.1 and two identical rectangular sections 14.2. Advantageously, the spray tube 2 has a flat or planar surface section FA, at least in the area surrounding the opening 14, in which the non-circular opening 14 is formed or provided in the form of a pre-punched hole or opening. The cross section of the opening 14 is adapted to the longitudinal section of the quick connection section SVA of the connection section 11 of the nozzle body 4 in such a way that the quick connection ab Section SVA can be passed through the opening 14 and can be clamped to the spray tube 2 by rotating the nozzle body 4 relative to the spray tube 2 about the first body axis KA1 of the nozzle body 4 .

In addition, the connecting section 11 of the nozzle body 4 designed as a quick-connecting section SVA has the at least one locking element 15, which is provided on a tubular section 11.1 of the nozzle body 4 that coaxially encloses the first body axis KA1 and extends radially outwards starting from the first body axis KA1 and acts as a locking finger or projection is formed. Advantageously, several, in particular two, locking elements 15 are provided, which are preferably provided on opposite sides of the pipe section 11.1 and each extend radially outwards starting from the first body axis KA1 and are preferably each designed as locking fingers or projections. The longitudinal extension of the tube section 11.1 can be adapted to the thickness of the tube wall of the spray tube 2 forming the opening 14.

The at least one locking element 15 has, on its top side facing the injection section 12, a contact surface 15.1 that is oriented obliquely, in particular at an acute angle, to the first body axis KA1, as can be seen in particular from FIG 5a is removable.

In particular, the at least one locking element 15 can be formed in one piece, in particular in one piece, with the tubular section 11.1 of the connecting section 11.

In the locking position VP, the at least one locking element 15 is passed through the opening 14 and is rotated relative to the spray tube 2 by preferably 40° from the release position FP to the locking position VP in such a way that the at least one locking element 15 engages behind the opening 14 and is on the flat surface section FA on the side facing away from the spray section 12, at least partially around the perforation 14 around the flat surface section FA, in particular comes to rest in a contact-locked manner.

In more detail, the inclined contact surface 15.1 of the at least one locking element 15 comes to clamp and make contact with the flat surface section FA of the spray wand 2 on the side of the pipe wall of the spray wand 2 facing away from the spray section 12 as a result of the rotation of the quick-connection section SVA, so that the nozzle body 4 in the flat surface section FA on the side facing the spray section 12 with the contact surface AF of the nozzle body 4 is pressed against the flat surface section FA in the locking position VP and the free edge area of the opening 14 between the contact surface AF and the inclined contact surface 15.1 of the at least one locking element 15 is held clamped.

As in particular from the in 3b As can be seen from the flat surface section FA of the spray tube 2 shown partially in a schematic top view, the opening 14 provided therein has a geometry that deviates from the circular shape in the cross section of the top view. In particular, the opening 14 can be embodied with play symmetry and have two identical arcuate sections 14.1 and two identical rectangular sections 14.2, which are geometrically adapted to the quick-connection section SVA in such a way that the at least one locking element 15 can be passed through the rectangular sections 14.2 and can be rotated by 40° into the locking position VP are blocked by means of the circular arc sections 14.1 from being pulled out of the opening 14. In this case, the opening in the flat surface section FA can be produced, for example, by lasering, punching or drilling.

The flat surface section FA of the spray tube 2 has a planar, ie flat, upper side and a planar underside. In particular, the upper side and lower side in the flat surface section FA span planes that run parallel or essentially parallel to one another. In other words, the flat surface section FA has a constant or approximately constant surface thickness, in particular surface thickness.

The invention has been described above using exemplary embodiments. It goes without saying that numerous changes and modifications are possible without departing from the inventive idea on which the invention is based.

Reference List

1

Spray Nozzle Arrangement

2

spray tube

2a

fluid-carrying interior

2.1, 2.2

side surface sections

3

spray nozzles

4

nozzle body

5

fluid channel

5.1, 5.2

Sections of the fluid channel

6

fixed nozzle section

7, 7'

spray ports

8th

feed tube

9

connecting line, channel

10, 10'

splash wave

11

connection section

11.1

pipe section

12

spray section

13

contact surface

14

breakthrough

14.1

circular arc section

14.2

rectangle section

15

locking element

15.1

plant area

16

sealing surface

17

sealing element

18

fuse element

19

locking mechanism

20

insert

21

ring structure

i.e

Distance

AF

plant area

FA

area section

L.A

longitudinal axis

KA1, KA2

body axes of the nozzle body

R, R'

rows of nozzles

RA

pipe axis

u

Circumferential direction of the pipe wall

FP

release position

VP

locking position

SVA

quick connect section

SBE

quick attachment device

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• WO 2009/003586 A1 [0007]
• WO 2010/045990 A1 [0007]

Claims (25)

Spray nozzle arrangement (1) for a spray station of a container cleaning machine, having at least one spray tube (2) provided for supplying a spray medium and extending along its length along a tube axis (RA) with a fluid-carrying interior (2a) and with at least one on the at least one spray tube (2) arranged spray nozzle (3), wherein the at least one spray nozzle (3) has at least one nozzle body (4) with at least one connecting section (11), by means of which the nozzle body (4) can be arranged on the spray pipe (2), the Nozzle body (4) by means of its connecting section (11) together with an opening (14) provided in the spray tube (2) in a tube wall of the spray tube (2) a quick-action fastening device (SBE) for detachably fastening the spray nozzle (3) to the spray tube (2 ) is formed, wherein the connection section (11) for engagement in a provided opening (14) as a quick connection section (SVA) a is formed, and wherein the quick-connection section (SVA) inserted into the opening (14) is rotated by rotating the nozzle body (4) relative to the opening (14) into a locking position (VP) and/or a release position (FP) of the quick-connecting device (SBE) is bringable. Spray nozzle arrangement (1) according to claim 1 , characterized in that the quick-action fastening device (SBE) is designed to be adjustable between the locking position (VP) and the release position (FP) in such a way that the quick-action fastening device (SBE) in the locking position (VP) can open the nozzle body (4) by turning it in a first direction of rotation of the nozzle body (4) relative to the spray tube (2) firmly with the spray tube (2) via the opening (14) and by rotating the nozzle body (4) relative to the spray tube (2) in a second direction of rotation opposite to the first direction of rotation, the nozzle body (4) releases again in the release position (FP), Spray nozzle arrangement (1) according to claim 1 or 2 , characterized in that the connection section (11) of the nozzle body (4) designed as a quick-connection section (SVA) has at least one locking element (15) for the non-positive and/or positive connection in the locking position (VP) of the quick-connection device (SBE) with the opening (14 ) of the spray tube (2). Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that the connecting section (11) designed as a quick-connecting section (SVA) with the at least one locking element (15) in the locking position (VP) closes the opening (14) in the pipe wall of the spray pipe ( 2) engages behind. Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that the quick-action fastening device (SBE) for a locking connection of the nozzle body (4) to the spray tube (2) is designed as a rotary locking device which, in the locking position (VP), has a non-positive and/or forms a positive connection. Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that the opening (14) in the pipe wall of the spray pipe (2) is designed for a precise engagement of the connecting section (11) of the nozzle body (4) in such a way that the opening (14) together with a respective connecting section (11) forms a secure and sealing quick-action fastening device (SBE), via which the nozzle body (4) is connected to the spray tube (2) in a liquid-tight manner, in particular inserted in a sealed manner into the opening (14) and fastened there is. Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that the connecting section (11) of the nozzle body (4) on the side projecting outwards beyond the outside of the pipe wall of the spray pipe (2) has a bearing surface ( ) preferably designed as a sealing surface (16). AF), which is designed in particular for positionally accurate and precisely fitting contact with the spray tube (2). Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that the contact surface (AF) of the respective nozzle body (4) in the locking position (VP), in particular over its entire surface, has a flat surface section (FA) which completely surrounds the respective opening (14). comes into contact-locking system. Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that the opening (14) is designed symmetrically and has two identical circular arc sections (14.1) and two identical rectangular sections (14.2). Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that the cross section of the opening (14) in plan view is adapted to the longitudinal section of the quick-connection section (SVA) of the connection section (11) of the nozzle body (4) that the quick-connection section (SVA) can be passed through the opening (14) and can be clamped to the spray tube (2) by rotating the nozzle body (4) relative to the spray tube (2) about the first body axis (KA1) of the nozzle body (4). Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that a fluid channel (5) connected to the fluid-carrying interior of the spray tube (2) is formed in the nozzle body (4), and the at least one spray nozzle (3) has a spray opening (7 , 7') for delivering a spray jet of the spray medium. Spray nozzle arrangement (1) according to one of the preceding claims, characterized in that several spray nozzles (3) are provided, which are arranged on the at least one spray pipe (2) in such a way that the spray openings (7, 7') are located in at least two, each in rows (R, R') of spray openings (7, 7') extending in the direction of the pipe axis (RA) and thereby at least one first row (R) of first spray openings (7) and at least one second row (R) of first spray openings (7) and at least one second Row (R ') are associated with second spray openings (7'). Nozzle body (4) of a spray nozzle (3) of a spray nozzle arrangement (1), the nozzle body (4) being designed for attachment to a spray pipe (2) of the spray nozzle arrangement (1) and for this purpose to a spray pipe (2) provided connection end has a connection section (11), by means of which the nozzle body (4) is detachably arranged on the spray tube (2), the nozzle body (4) having at least one spray section (12) at a spray end opposite the connection end and being in the nozzle body (4) a continuous fluid channel (5) is formed which opens at the connection end and at the spraying end, characterized in that the connecting section (11) is designed as a quick-connecting section for engaging in an opening (14) provided in a tube wall of the spraying tube (2). (SVA) is formed by rotating the nozzle body (4) relative to the opening (14) in a locking position (VP) and / or Release position (FP) can be brought. nozzle body (4). Claim 13 , characterized in that the connection section (11) of the nozzle body (4) designed as a quick-connection section (SVA) has at least one locking element (15) for the non-positive and/or positive connection in the locking position (VP) of the quick-connection device (SBE) with the opening (14 ) of the spray tube (2). nozzle body (4). Claim 13 or 14 , characterized in that the connecting section (11) of the nozzle body (4) has a contact surface (AF), preferably designed as a sealing surface (16), on the side protruding outwards beyond the outside of the pipe wall of the spray pipe (2), which is used in particular for precisely positioned and precisely fitting system is formed on the spray pipe (2). Nozzle body (4) according to any one of the preceding Claims 13 until 15 , characterized in that the system section (AF) has at least one sealing element (17), in particular a sealing ring. Nozzle body (4) according to any one of the preceding Claims 13 until 16 , characterized in that the connecting section (11) of the nozzle body (4) designed as a quick-connecting section (SVA) has the at least one locking element (15) which is attached to a tubular section (11.1) of the nozzle body (4) coaxially enclosing the first body axis (KA1). is provided and extends radially outwards starting from the first body axis (KA1) and is designed as a locking finger and/or projection. Nozzle body (4) according to any one of the preceding Claims 13 until 17 , characterized in that the at least one locking element (15) has a contact surface (15.1) oriented obliquely, in particular at an acute angle to the first body axis (KA1), on its upper side facing the spray section (12). Nozzle body (4) according to any one of the preceding Claims 13 until 18 , characterized in that the at least one spray section (12) is configured for a fixed or rotating spray and is designed to receive a fixed nozzle section (6) of a fixed spray or to receive a rotating spray shaft (10, 10') of a rotating spray. Method for detachably connecting a spray nozzle (3) to a spray tube (2) of a spray nozzle arrangement (1) for a spray station of a container cleaning machine, in which a spray medium is connected via a spray tube (2) extending along its length along a tube axis (RA) to a fluid-carrying interior (2a) and with at least one spray nozzle (3) arranged on the at least one spray tube (2), in which the at least one spray nozzle (3) has at least one nozzle body (4) with at least one connecting section (11) by means of which the nozzle body (4) is arranged on the spray tube (2), in which the nozzle body (4) is connected by means of a connecting section (11) together with an in the opening (14) provided in the spray pipe (2) in a pipe wall of the spray pipe (2) is releasably attached to the spray pipe (2) by means of a quick-action fastening device (SBE), in which the connection section (11) fits into an opening (14) provided as a quick-action connection section (SVA) is brought into engagement, and in which the quick-connect section (SVA) inserted into the opening (14) is moved into a locking position (VP) and/or a release position (FP ) of the quick connect facility (SBE). procedure after claim 20 , characterized in that the quick-action fastening device (SBE) is adjusted between the locking position (VP) and the release position (FP) in such a way that the quick-action fastening device (SBE) in the locking position (VP) the nozzle body (4) by turning in a first direction of rotation of the nozzle body (4) relative to the spray tube (2) firmly with the spray tube (2) via the opening (14) and by rotating the nozzle body (4) relative to the spray tube (2) in a second direction of rotation opposite to the first direction of rotation, the nozzle body (4) releases again in the release position (FP), procedure after claim 20 or 21 , characterized in that the connecting section (11) designed as a quick-connecting section (SVA) with the at least one locking element (15) for establishing the locking position (VP) first with the connecting section (11) together with the locking element (15) in the opening (14) of the Tube wall of the spray tube (2) is inserted and then rotated relative to the opening (14). Method according to any of the foregoing claims 20 until 22 , characterized in that the nozzle body (4) is rotated between the locking position (VP) and the release position (FP) of the quick-connection device (SBE) about a first body axis (KA1) of the nozzle body (4), so that a quick-connection device ( SBE) is reached, which in the locking position (VP) produces a non-positive and/or positive connection. Method according to any of the foregoing claims 20 until 23 , characterized in that to reach the locking position (VP) the at least one locking element (15) is passed through the opening (14) and is rotated relative to the spray tube (2) from the release position (FP) to the locking position (VP) in such a way, that the at least one locking element (15) engages behind the opening (14) and is supported on the flat surface section (FA) on the side facing away from the spray section (12) at least partially around the opening (14) on the flat surface section (FA), in particular reaches contact-locking system. Method according to any of the foregoing claims 20 until 24 , characterized in that the inclined contact surface (15.1) of the at least one locking element (15) by the rotation of the quick-connection section (SVA) for clamping and contact-locking system on the flat surface section (FA) of the spray tube (2) on the spray section (12) facing away from the pipe wall of the spray pipe (2), so that the nozzle body (4) in the flat surface section (FA) on the side facing the spray section (12) with the contact surface (AF) of the nozzle body (4) against the flat surface section (FA) is pressed in the locking position (VP) and the free edge area of the opening (14) is held clamped between the contact surface (AF) and the inclined contact surface (15.1) of the at least one locking element (15).

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