EP2489627A2 - Container treatment assembly with aseptic wall feed-through - Google Patents

Abstract

The device has a transport device that transports the containers by a cleaning chamber (12). The clean chamber is separated by multiple walls opposite to an environment. Multiple treating elements are arranged within a cleaning chamber. A sealing device (20) has an inlet (40), over which a cleaning medium is supplied.

Description

The present invention relates to a device for treating containers. The invention will be described with reference to an apparatus for closing containers with closures, but it should be understood that the present invention may be applied to other types of equipment, such as fillers, blow molding machines, which convert plastic preforms to plastic containers, and the like.

Such container treatment plants and also occluders have long been known from the prior art. In certain applications or specific drinks to be filled, it is necessary to fill or treat these drinks under sterile conditions. In the case of a capper, for example, the problem arises that the closure is usually placed on the container by means of a lifting / rotating drive and screwed on. In some cases, the drives required for this purpose are arranged within the sterile room, which causes problems insofar as such drives, for example due to their bearings, can often constitute sources of pollution. Furthermore, it is known to arrange the drives partially outside, such as a rotary drive, and to guide a corresponding lifting drive via a cam roller through a clean room boundary. However, these devices often lead to relatively complex designs.

From the DE 10 2008 034 389 A1 is a passage, and a container treatment machine with such bushings known. In this case, a rod and / or wave-like functional element is passed through a wall separating the sterile space, wherein a hydraulic seal is provided to seal corresponding strokes. Such hydraulic seals or water locks are known from the prior art. A particular problem with the use of such water locks consists in their cleaning. In this cleaning, it should be noted in particular that these water locks must separate a sterile room from the environment or a gray room.

The EP 1 821 010 A1 describes a seal assembly for sealing a transition between a rotating and a fixed machine element. In this case, a hydraulic seal for a plurality of treatment or closing elements is provided.

The present invention has for its object to improve the known from the prior art devices for treating containers with regard to the sterility of the respective sterile rooms. This is inventively achieved by a device for treating containers and in particular for closing containers with closures, which has a transport device which transports the containers through a clean room, wherein the clean room is separated by a plurality of walls with respect to an environment and wherein the device a plurality of treatment elements or Verschließköpfen which are arranged within the clean room and which are movable and in particular both with respect to a predetermined axis, as well as in the direction of this axis are movable to attach the closures to the containers. Closures are understood in particular screw caps, sealing foils, Aufprellverschlüsse, crown corks, etc.

Furthermore, each treatment element is arranged on a carrier which extends through a wall of the clean room and each treatment element is associated with a sealing device to seal at least one movement of the carrier. In this case, the sealing device has a receptacle for receiving a liquid separation medium, and a movable within the separation medium wall element.

According to the invention, at least one sealing device has an inlet via which a cleaning medium can be supplied to the sealing device. The wall element is advantageously arranged on the support and / or movable together with this. Particularly advantageously, the feed for the cleaning medium differs from an inlet for the separation medium.

It is therefore proposed according to the invention that each treatment element or closing head is assigned its own sealing device. The treatment element is generally movable in two different types of movement (rotation, stroke, pivoting, transverse displacement). In the following, the treatment element is referred to as a closure head.

Advantageously, the device has a lifting drive in order to effect a movement of the closing head along the axis of rotation thereof. This lifting drive is preferably arranged outside of the clean room. This drive may be, for example, linear motors or other electrical, pneumatic or hydraulic drives, but it could also find a lift curve with a cam roller application.

Furthermore, a rotary drive which effects a rotation of the closing head is preferably also arranged outside the clean room. In an advantageous embodiment, the separation medium is a liquid separation medium. This separation medium surrounds the carrier in the circumferential direction completely, but preferably, without touching it.

In a further advantageous embodiment, the device has at least one sensor device for detecting a fill level of the separation medium within the receptacle.

In a further advantageous embodiment, the separation medium completely surrounds each carrier in its circumferential direction. Furthermore, it would also be possible that the individual receptacles for the separation medium are at least partially and preferably completely connected to each other according to the principle of communicating tubes to achieve in this way a same level in all receptacles.

It is further proposed that each of said sealing means has its own inlet for a cleaning medium, so that a separate and / or common, simultaneous cleaning of these individual sealing devices is made possible. The cleaning medium may be a liquid and / or gaseous cleaning medium. The cleaning medium is preferably used for cleaning the receptacle, but preferably also for cleaning the movably arranged wall element. In this case, one or more nozzle devices can be provided, which act on the surfaces to be cleaned with the cleaning medium. This wall element advantageously has a circular cross section, wherein a diameter of this cross section is preferably between 1 cm and 20 cm.

In a further advantageous embodiment, the inlet is arranged below the receptacle. In this way, the cleaning medium is supplied from below, whereby a very efficient cleaning of the respective surfaces can be effected.

Preferably, a safe or complete clean room separation of the individual capping heads of a capper is made. An advantage of this procedure is that, as mentioned above, the individual drives need not be arranged within the clean room, and therefore do not apply the necessary in this case special requirements for the respective drives or motors. Also, by the procedure according to the invention no hermetic sealing of the clean room (only with overpressure) is necessary. It is therefore proposed to make the respective Verschließkopfabdichtung by individual cleanable water locks, which brings with it the advantage that even a lift curve and drives no longer need to be located in the clean room. Therefore, a hermetic clean room separation with very few components within the clean room is achieved.

The sealing of the capping head between a clean room and a gray room, that is to say an environment with a lower hygiene level, takes place in this way via a plurality of individual sealing devices or single water locks. In the clean room itself, only the closing cone is preferably provided, which attaches the closures on the bottles. Preferably, the rotational movement of the capping head via a gear, a servo motor or another rotary drive is generated. Advantageously, a stationary part of the sealing device or of the water lock rotates with the capper main axis, ie with a carrier which preferably also forms a component of the transport device.

Advantageously, the device has a first cleaning channel adjoining an inlet for guiding the cleaning medium, wherein this first cleaning channel extends at least in sections in the direction of a (rotational) axis of the carrier. Advantageously, this cleaning channel extends at least in sections in a vertical direction. In this way, a very efficient guidance of the cleaning medium inside the sealing device is possible.

Advantageously, said first cleaning channel is arranged radially inside or radially outside of the receptacle. In a further advantageous embodiment, a second cleaning channel is also provided, which preferably has an annular cross-section. Advantageously, the two cleaning channels are concentric to each other, wherein, for example, the first cleaning channel can be within the second cleaning channel. Advantageously, the receptacle is located between the first cleaning channel and the second cleaning channel.

Thus, it is particularly preferably provided that a cleaning channel for cleaning the clean room or the clean room areas and the second cleaning channel to clean the gray room areas.

Advantageously, the first cleaning channel has a substantially annular cross-section. Thus, this annular cross section can be formed for example by two mutually concentric walls of the receptacle or the device.

In a further advantageous embodiment, the device has a preferably arranged in the clean room outlet for the cleaning medium. This means that the cleaning medium can escape within the clean room in this to apply or clean corresponding walls of the clean room. The outlet may be, for example, a nozzle device.

Advantageously, said outlet is disposed above the receptacle or more preferably above a level of the cleaning medium within the receptacle. In this way, a very efficient cleaning of the clean room bounding walls can be made.

In a further advantageous embodiment, a wall of the cleaning channel is formed by a wall of the receptacle. For example, it may be possible for the cleaning channel to be formed by a wall of the receptacle and a second wall arranged concentrically inside or outside this wall.

In a further advantageous embodiment, the device has a stationary housing which completely surrounds the receptacle. Preferably, each receptacle is associated with such a stationary housing arranged. This case can be designed as protection against splashes.

In a further advantageous embodiment, the device has a drain for the cleaning medium. In this way, the cleaning medium can be removed again from the receptacle or the device. Advantageously, the inlet and the outlet are formed separately from each other.

In a further advantageous embodiment, the device has a reservoir for filling a plurality of receptacles with the separation medium. In this way, a central filling of several receptacles with the separation medium is possible.

In a further advantageous embodiment, a multiplicity of carriers for the treatment elements are arranged on a movable main carrier.

Fig. 1a

eine Vorrichtung zum Verschließen von Behältnissen nach dem Stand der Technik;

Fig. 1 b

eine erfindungsgemäße Vorrichtung zum Verschließen von Behältnissen;

Fig. 2

zwei Detaildarstellungen einer erfindungsgemäßen Vorrichtung;

Fig. 3

eine weitere Detaildarstellung einer erfindungsgemäßen Vorrichtung;

Fig. 4

eine weitere Detaildarstellung einer erfindungsgemäßen Vorrichtung;

Fig. 5

eine weitere Detaildarstellung einer erfindungsgemäßen Vorrichtung;

Fig. 6a - 6d

vier Darstellungen einer erfindungsgemäßen Vorrichtung in verschiedenen Betriebsmodi; und

Fig. 7a - 7b

zwei Darstellungen einer erfindungsgemäßen Vorrichtung mit exzentrischer Auslegung.

Further advantages and embodiments will become apparent from the accompanying drawings. Show:

Fig. 1a

a device for closing containers according to the prior art;

Fig. 1 b

a device according to the invention for closing containers;

Fig. 2

two detailed views of a device according to the invention;

Fig. 3

a further detail of a device according to the invention;

Fig. 4

a further detail of a device according to the invention;

Fig. 5

a further detail of a device according to the invention;

Fig. 6a - 6d

four illustrations of a device according to the invention in different operating modes; and

Fig. 7a - 7b

two representations of a device according to the invention with eccentric design.

Fig. 1a shows a schematic representation of a closure 1 according to the prior art. In this case, a relative to a central axis T rotatably arranged carrier 22 is provided, on which a plurality of closing elements 100 is arranged. This carrier is part of a generally designated 2 transport device for transporting the containers. The containers are transported on a circular path.

Each of these closing elements 100 in this case has a closing head 8 which is arranged on a support 18, both rotatable and in the direction parallel to the axis T movable up and down. By means of this capping head 8, the containers 10 can be closed with closures. In this case, the closing head 8 is arranged within a clean room 12. This clean room is limited by a plurality of walls 22, 24, 26, wherein the wall 26 is also the shaft of the carrier 22 and a wall of the carrier 22 at the same time. The reference numeral 136 denotes a sealing device in the form of a water lock circulating around all closing elements, which seals the entire space lying within this sealing device and radially outside the wall 26 with respect to the surroundings U. In this way, a very large-scale sealing device is required.

Fig. 1b shows a schematic representation of a device according to the invention. In this case, the containers 10 are guided here by means of a container carrier 14, which is arranged on a main carrier 16. It is possible that here this main carrier 16 and the Wall 22 are arranged vertically displaceable relative to each other along the arrow P1, but preferably this main support 16 is not displaced in height, especially when the container 10 is supported as shown with its bottom on the container support 14 (floor guide). Alternatively, a container carrier is possible, which supports the containers 10, for example, on a collar.

The reference numeral 23 denotes a capper upper part and the reference numeral 25 a drive for the closing head 8. This drive 25 causes both a vertical displacement of the capping head along the arrow P1, as well as a rotation about the axis of rotation D, as illustrated by the arrow P2. The reference numeral 20 indicates in its entirety a sealing device which serves both for sealing the rotary movement and the lifting movement. The reference numeral 18 refers here again to the carrier on which the capping head 8 is arranged. A circumferentially movable wall element 54 dips into the separation medium 55 here. The sealing device 20 is here arranged on the wall 22 and moves about the central axis T. In this case, between the sealing device 20 and the wall 22, further sealing elements (not shown) such as sealing rings may be arranged. The reference numeral 136 denotes a further sealing device which serves to seal the clean room 12 with respect to the common movements of all sealing devices 20. The reference numeral 7 refers to a roof of the device.

The reference numeral 29 again indicates the wall and here also a part of the capper main shaft, on which the wall 22 is arranged. This shaft is rotatably supported by the main bearing 74. The reference numeral 9 indicates a table top, on which (stationary) a further sealing device 50 in the form of a water lock is arranged, whereby here too a rotatable wall element 51 is provided, which slides in the separating medium of the sealing device 50.

If a bottom guide is provided in the sense of a container carrier, a height adjustment of the capper upper part is provided for this purpose. This height adjustment is about a retraction and extension of the capper main shaft 29 from the wall 26 (see. Fig. 1 b) reached. In addition, this height adjustment via the bellows 72 - alternatively via, for example, a shaft seal - sealed. The associated height adjustment of the capper upper part is also provided by a sealing device, more precisely the roof 7 of the closure device, with possible. This means that the immersion depth of the separating element 80 in the water lock is large enough to cover the entire path of the height adjustment and so to achieve a safe clean room separation. As mentioned, at the main bearing, the rotation of the capper is sealed with another water lock 50.

The drive of the closing elements can be done by common principles, such as lifting curves, linear axes, Servohubdreheinheiten, stepper motors, transmission and the like.

Due to the illustrated arrangement of the individual water locks above the roof water lock (which has the separating element 80), excess separating liquid of the individual water locks drain into the roof water lock, so that even without the use of drain pipes in the wall 22 no separation medium can collect on the top of the capper, such as in the case of overflowing or the like of the sealing devices 20. In this way, a complete clean room separation using the roof water lock 136, the desktop water lock 50, the bellows 72 and the single water locks or sealing devices 20 is possible.

The individual sealing devices 20 are mounted on the pitch circle of the machine. The number of these sealing devices depends on the pitch of the machine (i.e., the number of capping heads 8). The individual sealing devices 20 are preferably connected to one another via a ring line or the like in order to achieve a level uniformity. The sealing devices can be fed via a direct feed of the liquid via a rotary distributor to one or more sealing devices. The filling level of the sealing devices 20 is queried and controlled via one or more sensors (not shown), which may for example be designed as floats or the like. Alternatively, it is possible to define the level by a respective overflow opening. Also, the separation medium from the sealing means 20 can run into the sealing device 136.

Fig. 2 shows a detailed representation of a device according to the invention. In this case, the reference numeral 18 again refers to the carrier, at the lower end of a (not shown) capping head is arranged. In the left part of Fig. 2 is an upper position of this Support shown and in a right part of a lower position. The carrier 18 is arranged rotatable about a rotation axis D and also movable along this axis of rotation D. The reference numeral 20 refers in its entirety to a sealing device to seal the sterile room or clean room 12 from the environment or a gray space GR.

The reference numeral 30 refers to a housing which covers both the carrier and other elements described below, in particular to avoid splashing in this way. The housing is rotatably with respect. The axis D arranged.

In the interior of the housing 30, a disk-shaped holding device 52 is arranged on the carrier 18, which at the same time is also part of a water lock acting as a (hydraulic) sealing device. At this holding device 52, a circumferentially movable wall element 54 is arranged, which thus moves with a movement of the carrier 18. This wall element 54 dives with its lower end portion into a separating liquid 55. In this way, areas which are inwardly with respect to this wall element 54 are separated from those areas which are located outside with respect to the wall element 54. Inside the wall element 54, the clean room RR is formed and outside the gray room GR.

The reference numeral 34 denotes the receptacle which serves to receive the separation medium 55. This receptacle 34 is here formed by an inner circumferential wall 62 and a radially outer wall 53, wherein these two walls 62 and 53 are formed here circular about the axis D and are also concentric with respect to the axis of rotation D to each other. The wall element 54 therefore runs within the receptacle 34 with the separation medium. In this way, it can be seen that the receptacle has a relatively small receiving volume. The reference numeral 64 refers to a splash guard, which is also arranged on the holding device 52 and therefore also rotates.

Reference numeral 44 denotes a first cleaning channel, through which a cleaning agent can be conveyed into the device, ie for example into the gray space and also the receptacle 34. This channel 44 is formed by the above-mentioned wall 53 and the radially outer wall 57 arranged for this purpose. The Reference numeral 46 denotes a second (inner) cleaning channel, via which also a cleaning medium can be supplied. This second cleaning channel 46 is formed by the wall 62 of the receptacle 34 and a radially inner wall 45 thereto. Via an inlet 40, the cleaning medium can be supplied to the two channels 44, 46 and thus also to the sealing device 20.

The reference numeral 32 denotes a sequence through which the cleaning medium can be removed here. During operation, ie during the production state, the separation medium can also be supplied via this process. The reference numeral 36 denotes a cleaning device, such as nozzles, with which the cleaning agent can be applied during operation.

This rotates the rotating part of the moat around its own axis and also performs a lifting movement. This combined capping head movement d. H. Rotation and stroke including capper drive motion, d. H. the rotation around the capper axis T, is sealed by means of the separating liquid. More precisely, the clean room is separated from a gray room here.

As mentioned, the liquid level of the separating liquid 55 within the receptacle 34 is controlled by means of sensors. It is possible that the liquid level is generated via a central reservoir (filling) and discharged after the production cycle. The entire water lock can be cleaned by separate cleaning channels, as described above.

The upper left position (cf. Fig. 2 ) is the position at which the cleaning operation takes place.

Above the holding device 52, a sealing device 28 is provided. When the carrier 18 is in the upper position, this sealing device seals upwards, so that in this way the entire device within the housing 30 can be cleaned or rinsed. This sealing device can be attached to the holding device 52 (see left partial image Fig. 2 ) or on the housing 30 (see right drawing Fig. 2 ) or at both.

Fig. 3 shows a more detailed representation of a device according to the invention in a cleaning mode. In this cleaning mode, the carrier 18 is moved to its uppermost position, so that a seal is possible upwards, and in this way the sealing device 20 can be completely flushed. Via the inlet 40, the cleaning medium passes through the first (outer) cleaning channel 44 and the second (inner) cleaning channel 46 into the sealing device, wherein, as mentioned, the first cleaning channel 44 in the gray space and the second cleaning channel 46 within the movable wall element 54th and thus in the sterile room. After cleaning the individual wall areas, the cleaning medium can be removed again via a return 47 and a return 66. Since separation medium 55 is present in this illustration, in this case the cleaning medium is preferably gaseous.

Fig. 4 shows a greatly enlarged view of a portion of the device according to the invention. Here, in particular, the individual walls or wall elements 45, 62, 54, 53, 57 and 64 (shown from the inside to the outside, which form the receptacle 34 and also the individual channels.) The walls 45, 62, 53, and 57 are included The individual walls are arranged, as mentioned above, parallel to each other and in particular concentric with one another The support 18 and the wall element 54 and the wall 64 are rotatably arranged, the other walls standing, ie standing with respect to the rotation of the carrier 18. Overall, the arrangement is rotatable with respect to a central machine axis T arranged.

Fig. 5 shows a further illustration of the device according to the invention. It can be seen here in particular areas in which media such as gas can be sucked off after cleaning. Also in the channel 66, a gas can be performed.

An additional stroke (in this example upwards) seals the rotating parts of the moated castle with the standing part of the moated castle (cf. Fig. 3 with the two seals 19 and 28 below and above). This provides the ability to generate a continuous flow of cleaning agent during the cleaning cycle (similar to a CIP cleaning on a bin filling machine). With this system, the water lock could be easily cleaned and the more elaborate built-in cleaning channels from the first example (cf. Fig. 2 ) can be omitted. This measure thus further simplifies the overall system.

The present invention therefore describes both a lower and upper clean room separation and additionally a Verschließkopfabdichtung on individual, cleanable water locks with the advantage that a lift curve and drive wheels are no longer arranged in the clean room 12.

Fig. 6a shows a sealing device according to the invention in a cleaning or disinfection operation. In this case, a cleaning or a disinfection medium 59 is introduced via the inlet 40 and two channels in the sealing device 20 and exits, as illustrated by the arrows P4 and P5, upwards out. In this way, this preferably gaseous cleaning or disinfecting medium can flow into the entire sealing device. About the returns 66 and 47, the cleaning or disinfecting medium 59 can be removed again from the device.

Fig. 6b shows a corresponding plan view of the in Fig. 6a shown device. It can be seen here that the individual channels and walls are each rotationally symmetrical with respect to the midpoint M.

Fig. 6c shows the device Fig. 6a in a work operation. Here again, the separation medium 55 can be seen, which stands here only between the two walls 62 and 53. The feed for the separation medium takes place here via the inlet 40 and the drain 32 serves here, for example, as protection against overflow.

At the in Fig. 6d As shown, the sealing device is dry-disinfected. It would be possible here to supply a gaseous sterilization medium along the arrow P7 and to suck it off via the inlet 40 and the outlet 32. As illustrated by the arrows, here this sterilization medium first passes along the arrow P7 upwards and along the arrows P8 and P9 into the respective sterilizing agent channels and can be sucked out in this way via the inlet 40. Furthermore, the sterilization medium also reaches the outlet 32 and can also be sucked off there. This dry disinfection is possible during operation or during production. The flow shown can alternatively to a gaseous sterilization medium for air to be valid. This means that, in particular during operation, sterile air along the arrows P7 and P9 can be sucked out of the clean room RR via the inlet 40 and ambient air can be sucked out of the gray room GR along the arrow P8 via the outlet 32.

Overall, the cleanable individual water locks or sealing devices 20 ensure the hygienic and recontamination-free transmission of the movements required for closing into the clean room, i. for transmitting the lifting and torque. The capper upper part is advantageously also usable for the so-called neck handling, i. the containers are transported through the machine using their neck ring.

Fig. 7a and 7b show a further embodiment, which is executed here eccentric. The sloshing behavior of the individual sealing devices 20 can be improved by displacing the upright part, in this case the carrier 33, that is, spilling over the separating liquid 55 from the receptacle 34 and from the sealing device 20, which spills over, for example in the case of sudden changes in a rotational speed of the Wall 22 may occur around the axis T, can be avoided. The carrier 33 is arranged on the wall 22. In this system, the rotational axis D1 of the capping head 8 runs on a pitch circle of the machine, but eccentrically to the center axes D2 of the individual containers or housing 30 of the sealing devices. This eccentricity is represented here by the two distances x and y, wherein it can be seen that the distance on the right side (y) is greater than the distance (x) on the left side.

In Fig. 7b is also this eccentricity with respect to the partition 54 recognizable.

As mentioned above, the sealing devices can also be used in dry aseptic application by designing a cleaning channel as a suction channel.

The Applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided they are novel individually or in combination with respect to the prior art.

LIST OF REFERENCE NUMBERS

1

contraption

2

transport means

7

top, roof

8th

seaming

9

tabletop

10

containers

12

cleanroom

14

container carriers

16

main carrier

18

carrier

20

seal means

22

Wall of the sterile room 12

23

capper

24

(horizontal) wall of the sterile room 12

25

Drive for closing head

26

Wall of the sterile room

28

seal means

29

Verschließerhauptwelle

30

casing

32

procedure

33

carrier

34

receptacle

36

cleaning device

40

Intake

44

first cleaning channel

45

wall

46

second cleaning channel

47

returns

50

Sealing device, water lock

51

wall element

52

holder

53, 54

wall

55

separating liquid

57

wall

59

cleaning media

62, 64

wall

66

returns

72

bellow

74

main bearing

80

separating element

100

closing elements

136

seal means

D

axis of rotation

GR

Grauraum

M

Focus

P1, P2, P4, P5, P7, P8, P9

arrow

RR

cleanroom

T

axis

U

Surroundings

x, y

distances

Claims (11)

Device (1) for treating containers and in particular for closing containers (10) with closures, with a transport device (2), which transports the containers (10) through a clean room (12), wherein the clean room (12) by a plurality is separated from walls (22, 24, 26) from an environment (U), with a plurality of treatment elements (8) arranged inside the clean room (12), which are movable and in particular both with respect to a predetermined axis (D ) are rotatable as well as in the direction of this axis (D) are movable, in particular to attach closures on the containers (10), wherein each treatment element (8) on a support (18) is arranged, which by a wall (22) of the Reinraums (12) extends therethrough and wherein each treatment element (8) is associated with a sealing device (20) to seal at least one movement of the carrier (18), and the sealing means (20) a Aufna Hmebehältnis (34) for receiving a liquid separation medium (55) and within the separation medium (55) movably arranged wall element (54)
characterized in that
at least one sealing device (20) has an inlet (40), via which a sealing medium can be supplied to the sealing device (20). Device (1) according to claim 1,
characterized in that
the inlet (40) is arranged below the receptacle (34) Device (1) according to at least one of the preceding claims,
characterized in that
the device (1) has a first cleaning channel adjoining the inlet (40) for guiding the cleaning medium, this first cleaning channel (44) projecting at least in sections in the direction of a longitudinal axis (D) of the Carrier extends. Device (1) according to claim 3,
characterized in that
the first cleaning channel (44) is arranged radially inside or radially outside the receptacle (34). Device (1) according to claim 3,
characterized in that
the first cleaning channel (44) has a substantially annular cross-section. Device (1) according to at least one of the preceding claims,
characterized in that
the device has an outlet for the cleaning medium arranged in the clean room (12). Device (1) according to claim 5,
characterized in that
the outlet is disposed above the receptacle (34). Device (1) according to claim 3,
characterized in that
a wall of the cleaning channel (44) is formed by a wall of the receptacle (34). Device (1) according to at least one of the preceding claims,
characterized in that
the device (1) has a stationary housing (30) which completely surrounds the receptacle (34). Device (1) according to at least one of the preceding claims,
characterized in that
the device (1) has a drain for the cleaning medium. Device (1) according to at least one of the preceding claims,
characterized in that
a plurality of carriers (18) is arranged on a movable main carrier.

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