Device for filling containers and method for operating the device

Abstract

The invention relates, among other things, to a device (10), preferably a rotary device, for filling containers. The device (10) has a filling element (12) for filling a container, a container carrier (24) for supporting the container during filling of the container, and a cleaning cap (26) for covering the filling element (12) during cleaning of the filling element (12). The device (10) further has a changing system (30) which is designed to move the container carrier (24) away from a position directly beneath the filling element (12), preferably pivoting it away, and to move the cleaning cap (26) towards a position directly beneath the filling element (12), preferably pivoting it towards it, particularly preferably about a plurality of spaced-apart pivot axes (S1, S2, S3, S4).

Description

Technical field

[0001] The invention relates to a device for filling containers. The invention further relates to a method for operating a device for filling containers. Technical background

[0002] Filling devices for filling containers have long been known in the art. It is also known from the prior art that such filling devices can be cleaned with a liquid cleaning agent as part of a cleaning mode. This cleaning agent can be supplied, for example, via the product supply line and thus clean the individual filling elements. The cleaning agent can then be returned using a so-called CIP cap (cleaning in place) or cover.

[0003] DE 37 22 495 A1 discloses a filling and closing machine for containers such as bottles, cans, plastic containers, and the like, consisting of rotating support bodies for the filling valves, closing units, and the like, and base plates and lifting elements assigned to these filling valves and closing units, and rinsing containers that can be attached between these and to the filling valves or closing units for collecting and redirecting the cleaning fluid circulating during the rinsing process. The respective rinsing containers in or on the filling and closing machine are automatically retractable from a rest position outside the movement path of the containers into a working position below the filling valves and closing units. The rinsing containers are mounted in or on the actual lifting element and can be moved in or on this from a parked position to a working position and moved by the lifting element against the filling element.

[0004] For further prior art, reference is made to EP 1 270 498 A1, JP S52 047042 U, EP 2 748 102 B1, EP 0 785 134 A2, DE 10 2006 013 367 A1, DE 10 2014 117 859 A1, DE 43 43 425 A1 and DE 10 2011111 496 B3.

[0005] A disadvantage of the known state of the art can be the comparatively large installation space required for the system for moving the rinsing container or the cleaning cap for the filling device, especially if the filling device also has an elongated fill level probe that also needs to be cleaned. In practice, this leads to the fact that in situations where space is limited, for example, due to a comparatively small pitch (e.g., 87 mm or 94 mm) of the filling stations of a rotary device, the CIP cleaning caps are sometimes still attached and removed manually.

[0006] The invention is based on the object of creating an improved technology for cleaning a filling element of a filling device, preferably with a particularly small installation space requirement and / or applicability to a filling element with a filling level probe. Summary of the invention

[0007] The problem is solved by the features of the independent claims. Advantageous further developments are specified in the dependent claims and the description.

[0008] One aspect of the present disclosure relates to a device, preferably a rotary device, for filling containers. The device has (at least) one filling element for filling a container. The device further has (at least) one container carrier, preferably a container support plate, for supporting the container (e.g., at the bottom) during filling of the container. The device further has (at least) one (e.g., tubular) cleaning cap, preferably a CIP cleaning cap, for covering the filling element during cleaning of the filling element. The device further has (at least) one changing system which is designed to move the container carrier away from a (e.g., use) position directly below the filling element (e.g., to a non-use position of the container carrier offset laterally therefrom), preferably to pivot it away (e.g., about a single pivot axis), and to remove the cleaning cap (e.g.,from an overhead non-use position of the cleaning cap) to a (e.g. use) position directly below the filling element, preferably pivoting it, particularly preferably about several pivot axes spaced apart from one another (e.g. parallel).

[0009] The advantage of the interchangeable system is that it requires very little installation space. The container carrier can be moved from its position directly below the filling device to create space for the cleaning cap. This allows for CIP cleaning with automatic positioning of the cleaning cap, even with filling devices with a fill level probe and a comparatively small pitch.

[0010] In one embodiment, the exchange system is further configured to couple a movement of the container carrier and a movement of the cleaning cap to one another, preferably mechanically. Preferably, a movement away (e.g., pivoting away) of the container carrier from its position directly beneath the filling member and a movement towards (e.g., pivoting towards) the cleaning cap to its position directly beneath the filling member can be coupled to one another, preferably mechanically. Alternatively or additionally, for example, a movement towards (e.g., pivoting towards) the container carrier to its position directly beneath the filling member and a movement away (e.g., pivoting away) of the cleaning cap from its position directly beneath the filling member can be coupled to one another, preferably mechanically.Advantageously, the movements of the container carrier and the cleaning cap can be effected by a common drive device, which enables a particularly space-saving solution.

[0011] In a further embodiment, the changing system comprises a pivoting device, preferably with multiple pivot axes, and / or a lifting device (e.g., a pneumatic cylinder-piston unit) with a movable lifting element, preferably a reciprocating piston, for moving the container carrier and the cleaning cap. Advantageously, the container carrier and the cleaning cap can thus be pivoted and / or lifted by the changing system.

[0012] In one embodiment, the pivoting device connects the movable lifting element to the container carrier and the cleaning cap. This advantageously allows a joint mechanical coupling of the container carrier and the cleaning cap to the movable lifting element via the pivoting device, whereby, for example, only the lifting device is required to drive the container carrier and the cleaning cap.

[0013] In a further embodiment, the exchange system is further designed so that: a first portion of a stroke of the movable lifting element causes the container carrier to pivot away from its position directly below the filling element and the cleaning cap to pivot towards its position directly below the filling element by means of the pivoting device; and a second portion of the stroke, which follows the first portion, causes the container carrier and the cleaning cap to move upwards towards the filling element.

[0014] Advantageously, such a configuration can allow only the lifting device to pivot the container carrier away, pivot the cleaning cap toward it, and lift the cleaning cap. Advantageously, pivoting can achieve an overhead orientation of the cleaning cap in a non-use position, allowing the cleaning cap to be easily emptied.

[0015] In one design variant, the filling device has a centering bell into which a cap opening of the cleaning cap can be inserted and which can be moved vertically (e.g., by means of a vertical guide of the filling device) to vertically guide the container carrier during the second section of the stroke. This advantageously eliminates the need for a separate vertical guide for the cleaning cap, which in turn saves space.

[0016] In a further embodiment, the pivoting device has (at least) one lever element which: is guided at one (e.g. first) end on a guide curve, preferably a guide curve groove; and / or is attached to the container carrier at one (e.g. second) end; and / or is pivotally connected, preferably horizontally, to the movable lifting element of the lifting device between the first end and the second end; and / or is pivotally connected, preferably horizontally, to the cleaning cap at one (e.g. third) end.

[0017] Advantageously, the lifting device can thus enable the desired pivoting movement of the container carrier completely and, optionally, the desired pivoting movement of the cleaning cap partially.

[0018] In a further embodiment, at least one of the following is fulfilled: the guide curve is enclosed in a housing part, preferably in an inner side of the housing part; the guide curve is fixed relative to a stationary part, preferably a lifting cylinder, of the lifting device; the guide curve has a stepped profile; and the guide curve has a first, substantially vertically extending guide curve section, an adjoining second, substantially obliquely or horizontally extending guide curve section and an adjoining third, substantially vertically extending guide curve section, optionally with a (e.g. conically) widening outlet end.

[0019] Advantageously, the lifting device can thus enable the desired pivoting movement of the container carrier completely and, optionally, the desired pivoting movement of the cleaning cap partially.

[0020] In one embodiment, the pivoting device has (at least) one pivot arm, which is pivotally connected to the movable lifting element of the lifting device at one (e.g. first) end, preferably horizontally; and / or is pivotally connected to the cleaning cap at one (e.g. second) end, preferably horizontally.

[0021] Advantageously, the lifting device can partially enable the desired pivoting movement of the cleaning cap.

[0022] Preferably, the pivot arm and the lever element are connected to the movable lifting element via a plurality of pivot axes spaced apart from one another, preferably vertically, and preferably parallel, and / or the pivot arm and the lever element are connected to the cleaning cap via a plurality of pivot axes spaced apart from one another, preferably parallel. Advantageously, this allows the cleaning cap to be pivoted over a particularly large angular range without requiring a large stroke of the lifting element. Advantageously, this also allows for an overhead orientation of the cleaning cap in its non-use position.

[0023] In one embodiment, the lever element is connected to the movable lifting element via a (e.g. first and / or horizontal) pivot axis, and the pivot arm is connected via a (e.g. second / other) pivot axis that is spaced (e.g. vertically) apart, preferably parallel, (e.g. horizontal) pivot axis. Alternatively or additionally, the lever element is connected to the cleaning cap via a (e.g. third / further and / or horizontal) pivot axis, and the pivot arm is connected via a (e.g. fourth / further other) pivot axis that is spaced (e.g. horizontal) apart, preferably parallel. As already mentioned, this advantageously allows the cleaning cap to be pivoted over a particularly large angular range without requiring a large stroke of the lifting element. As also already mentioned, this can also advantageously enable an overhead orientation of the cleaning cap in its non-use position.

[0024] In one embodiment, the lifting device has a cam follower, preferably a roller, for following a (e.g., stationary) cam (e.g., of the device). The cam follower can preferably be operatively connected to the lifting element for vertically moving, preferably lifting, the lifting element. For example, the cam follower can be arranged and, for example, supported at a lower end of the lifting element. This advantageously provides a reliable, precise, and robust mechanical lifting device that can operate without complex pneumatics for moving the lifting element.

[0025] In a further embodiment, the device further comprises a preferably mechanical locking device, which is designed to lock the lifting element, preferably automatically (e.g., elastically prestressed), when the cleaning cap is positioned (e.g., pivoted) in its position directly below the filling element. Preferably, the locking device can be mechanically actuated (e.g., mechanically) to release the lifting element. Alternatively or additionally, the lifting element can be elastically prestressed for lowering, preferably to move the container carrier into its position directly below the filling element and / or to move the cleaning cap away from its position directly below the filling element. Alternatively or additionally, the lifting element can be lockable by a locking element of the locking device on a shoulder of the (e.g., stepped) lifting element.

[0026] Advantageously, the locking device can enable the lifting element (and thus the cleaning cap and the container carrier) to assume defined positions. For example, the cleaning cap can be securely positioned below the filling element when the lifting element is locked. On the other hand, the container carrier can be moved into its position directly below the filling element when the lifting element is unlocked. Under elastic preload, the lifting element can then, for example, always move in such a way that the container carrier reaches and maintains its defined position directly below the filling element.

[0027] In a further embodiment, the exchange system is further configured to move, preferably pivot, the container carrier to its position directly below the filling element to complete cleaning of the filling element, and to move the cleaning cap away from its position directly below the filling element, preferably pivoting it away and / or into an overhead orientation of the cleaning cap. Advantageously, the cleaning cap can thus be moved away from the position directly below the filling element to create space for the container carrier for a normal operating mode / filling operating mode of the device.

[0028] In one embodiment, the changing system has a common and / or single drive source for moving both the container carrier from its position directly below the filling device and the cleaning cap to its position directly below the filling device, and optionally vice versa. This advantageously enables a particularly space-saving device.

[0029] In a further embodiment, the exchange system is further configured to pivot the cleaning cap toward its position directly below the filling device over a larger angular range than pivoting the container carrier away from its position directly below the filling device. This advantageously enables an overhead orientation of the cleaning cap in its non-use position.

[0030] In one embodiment, a non-use position of the container carrier and a non-use position (e.g., overhead) of the cleaning cap are arranged on opposite sides of the exchange system. This advantageously enables a particularly space-saving device and simple kinematics.

[0031] In another embodiment, the filling device has a fill level probe. The cleaning cap can be dimensioned to accommodate the fill level probe. Optionally, the exchange system can be configured to move the cleaning cap so that the fill level probe is inserted into the cleaning cap for cleaning the filling device. The cleaning cap can thus also be advantageously used in a system with a fill level probe.

[0032] In one embodiment, the device further comprises a lifting system designed to jointly raise and lower the container carrier, the cleaning cap, and the exchange system. Advantageously, this allows the container supported on the container carrier to be raised and lowered during normal operation of the device.

[0033] A further aspect of the present disclosure relates to a container treatment system (e.g., for tempering, manufacturing, cleaning, coating, testing, filling, sealing, pasteurizing, labeling, printing, marking, laser marking, and / or packaging containers for liquid or pasty media, preferably beverages, liquid foodstuffs, or products from the pharmaceutical or healthcare industry). The container treatment system may comprise the device as disclosed herein.

[0034] For example, the containers can be designed as bottles, cans, canisters, cartons, flacons, tubes, etc.

[0035] A further aspect of the present disclosure relates to a method for operating a (e.g., rotary) device, preferably as disclosed herein, for filling containers. The method comprises changing to a (e.g., CIP) cleaning operating mode of the device by moving, preferably pivoting, a container carrier (e.g., about a single pivot axis) from a (e.g., use) position directly below a filling element (e.g., to a laterally offset non-use position of the container carrier) and moving, preferably pivoting, a (e.g., CIP and / or tubular) cleaning cap, preferably about several (e.g., parallel) spaced-apart pivot axes (e.g., from an overhead non-use position of the cleaning cap) to a (e.g., use) position directly below the filling element by means of a changeover system.The method advantageously allows the same advantages to be achieved as those already described with reference to the device. The same applies to the preferred embodiments of the method explained below.

[0036] In one embodiment, the method further comprises at least one of: Ending the cleaning operating mode by moving, preferably pivoting, the container carrier to its position directly below a filling member and moving, preferably pivoting away, the cleaning cap from its position directly below the filling member, preferably into an overhead orientation of the cleaning cap, by means of the changing system; coupling, preferably mechanically coupling, the moving, preferably pivoting away, of the container carrier from its position directly below the filling member and the moving, preferably pivoting towards, the cleaning cap to its position directly below the filling member by means of the changing system; coupling, preferably mechanically coupling, a moving, preferably pivoting towards, the container carrier to its position directly below the filling member and a moving, preferably pivoting away, the cleaning cap from its position directly below the filling member by means of the changing system;Vertical guidance of the cleaning cap towards the filling element by means of a centering bell of the filling element; Immersion of a fill level probe into the cleaning cap (e.g. during vertical movement of the cleaning cap upwards by means of the changing system, preferably guided by the centering bell); and (e.g. automatic and / or elastically prestressed) locking of the cleaning cap in its position directly below the filling element by means of a, preferably mechanical, locking device, which preferably locks a lifting element of a lifting device of the changing system (e.g. at a shoulder of the lifting element); and Elastic prestressing of a lifting element of a lifting device of the changing system to lower the lifting element to move the container carrier to its position directly below the filling element and to move the cleaning cap away from its position directly below the filling element.

[0037] The previously described preferred embodiments and features of the invention can be combined with one another as desired. Short description of the characters

[0038] Further details and advantages of the invention are described below with reference to the accompanying drawings. They show: Figure 1 shows a purely schematic representation of a device for filling containers according to an embodiment of the present disclosure; Figure 2 shows a side view of a section of the device with an exemplary exchange system; Figure 3 shows a side view of a pivoting device of the exemplary exchange system; Figure 4 shows a further side view of the exemplary pivoting device without showing a housing cover; Figure 5 shows a further side view of the exemplary pivoting device without showing a housing cover and a lever element; Figure 6 shows a side view of the exemplary pivoting device without showing a container carrier, a housing cover, and a pivoting mechanism of the pivoting device; Figure 7 shows a sequence of movements for connecting a cleaning cap to a filling element by means of the exemplary exchange system;Figure 8 is a schematic sectional view of a portion of an exemplary device with an exemplary mechanical lifting device and a locking device; Figure 9 is a schematic sectional view of a section of the exemplary device of ; Figure 8 in a release position; and Figure 10 a schematic sectional view of a section of the exemplary device of Figure 8 in a locked position.

[0039] The embodiments shown in the figures correspond at least partially, so that similar or identical parts are provided with the same reference numerals and for their explanation reference is also made to the description of the other embodiments or figures in order to avoid repetition. Detailed description of exemplary embodiments

[0040] The Figure 1shows a device 10 for filling containers. The device 10 can, for example, be included in a container treatment plant. For example, the container treatment plant can also have a device for closing the filled containers. The device for closing the filled containers can, for example, be connected to the device 10 via a container conveyor.

[0041] Preferably, the device 10 can fill the containers with a liquid or pasty medium. The device 10 is preferably designed as a rotary filling device, e.g., with a vertical central axis of rotation A. The device 10 can have multiple filling elements 12 for simultaneously or temporally overlapping filling of multiple containers. For example, the filling elements 12 can be arranged around a circumference of a filling carousel of the rotary filling device.

[0042] The Figure 2shows a section of the device 10 with the filling element 12 (only shown schematically in Figure 2), a container carrier 24, a cleaning cap 26 and a changing system 30. Optionally, the device 10 can further comprise a lifting system 22.

[0043] Preferably, the device 10 has a plurality of stations, each of which has a filling element 12, a container carrier 24, a cleaning cap 26, and a changing system 30, as well as optionally a lifting system 22. The stations can preferably be arranged distributed around a circumference of the device 10.

[0044] The filling element 12 can be attached to a rotatable upper part 14 (only schematically shown in Figure 2 shown) of the device 10. The upper part 14 is preferably rotatable about a vertical central axis of rotation A of the device 10. For example, the upper part 14 can be rotated by means of a vertically aligned main shaft / central shaft of the device 10.

[0045] Preferably, the upper part 14 can be raised and lowered by means of an adjustment device of the device 10. It is possible for the adjustment device to lower the upper part 14 into a lower or lowest position for a cleaning mode of operation of the device 10.

[0046] The filling element 12 can, for example, have a filling valve with a movable valve member for opening and closing a filling material path. Preferably, the filling element 12 can also have a centering bell 16 and / or a fill level probe 20.

[0047] The centering bell 16 can center the container to be filled directly below the filling device 12. For example, the centering bell 16 can have a conical receptacle for a container mouth. The receptacle can be open from the underside of the centering bell 16.

[0048] Preferably, the centering bell 16 can be vertically movable and guided. For example, the centering bell 16 can be guided by means of a vertical guide 18 (only schematically shown in Figure 2 shown) can be vertically movable. It is possible for the centering bell 16 to be vertically movable relative to a filling material outlet or a filling valve housing of the filling element 12. Accordingly, the centering bell 16 can be lowered from a position adjacent to the outlet or the filling valve housing and / or raised from a lowered position to bear against the filling material outlet or the filling valve housing.

[0049] The fill level probe 20 can protrude vertically downward from the filling device 12. The fill level probe 20 can be immersed in the container during filling of the container by means of the filling device 12. Preferably, the fill level probe 20 can output a fill stop signal for the filling device 12 when a desired fill level is reached in the container. The fill level probe 20 can be designed, for example, as a short-circuit probe.

[0050] Preferably, the fill level probe 20 is an elongated component, for example, a rod-shaped or tubular one. A longitudinal axis of the elongated fill level probe 20 can be oriented vertically. The fill level probe 20 can extend through the centering bell 16.

[0051] The lifting system 22 can raise and lower the container carrier 24. Preferably, the lifting system 22 raises and lowers the container carrier 24 together with the cleaning cap 26 and the change system 30.

[0052] For example, the lifting system 22 can lift the container carrier 24 with a container carried thereon for filling. During the lifting process, the fill level probe 20 can be immersed in the container. During the lifting process, the container mouth can be in contact with the centering bell 16 or can already be in contact with it. After filling, the lifting system 22 can lower the container carrier 24 with the filled container.

[0053] It is possible for the lifting system 22 to lower the container carrier 24, the cleaning cap 26 and the changing system 30 into a lower or lowest position for a cleaning mode of operation of the device 10.

[0054] The container carrier 24 can support a container. The container carrier can support the container during filling by means of the filling device 12. Preferably, the container carrier can support the container at the bottom. For example, the container carrier can be designed as a container support plate. Alternatively or additionally, the container carrier 24 can support the container, for example, at a container neck, at a container neck ring, or at a periphery of a container base (container body).

[0055] In the normal operating mode (filling mode) of the device 10, the container carrier 24 can be positioned directly below the filling member 12. As explained in more detail herein, for a cleaning mode, the container carrier 24 can be moved away from this position directly below the filling member 12 by means of the change system 30 to make room for the cleaning cap 26.

[0056] The cleaning cap 26 can cover the filling element 12 from below during cleaning of the filling element 12. Specifically, the filling element 12 can cover a filling material outlet of the filling element 12 from below. As a result, in a cleaning operating mode of the device 10, the cleaning cap 26 can guide a cleaning fluid flowing through the filling element 12 at the filling material outlet of the filling element 12 back into the filling element 12.

[0057] The cleaning cap 26 is preferably designed as a so-called CIP cleaning cap or cleaning-in-place cleaning cap.

[0058] Preferably, the cleaning cap 26 can be dimensioned to accommodate the fill level probe 20. For example, the cleaning cap can have an inner diameter that is larger than an outer diameter of the fill level probe 20. For example, the cleaning cap 26 can have a length that is greater than a length of the fill level probe 20.

[0059] For example, the level probe 20 may be substantially tubular, with a closed end and an oppositely disposed open end.

[0060] The cleaning cap 26 may, for example, have a cap mouth 28. The cap mouth 28 may, for example, be conical.

[0061] An outer shape of the cap mouth 28 is preferably adapted to an inner shape of the centering bell 16. Preferably, the cleaning cap 26 can be inserted into the centering bell 16 with its cap mouth 28. The centering bell 16 can then hold or secure / fix the cleaning cap 26, for example, with respect to a radial direction of a central vertical axis of the centering bell 16.

[0062] In the normal operating mode (filling mode) of the device 10, the cleaning cap 26 may be positioned away from a position directly below the filling member 12, as in Figure 2is shown. Preferably, the cleaning cap 26 can be oriented upside down in its non-use position, e.g., parallel to a vertical axis or at an angle <90° to the vertical axis (directed downwards). As explained in more detail herein, the cleaning cap 26 can be moved to a position directly below the filling member 12 by means of the change system 30 for a cleaning mode of operation.

[0063] The changing system 30 is generally designed to move the container carrier 24 away from its position directly below the filling element 12 and to move the cleaning cap 26 to its position directly below the filling element 12 in order to clean the filling element 12.

[0064] Specifically, the changing system 30 can preferably move the container carrier 24 between its position (use position) directly below the filling element 12 and a non-use position of the container carrier 24, which is laterally offset from the use position. Preferably, the changing system 30 can pivot the container carrier 24 away from its position directly below the filling element 12 to the side, e.g., about a preferably single and / or horizontal pivot axis and / or to the non-use position.

[0065] Specifically, the exchange system 30 can preferably move the cleaning cap 26 between its position (use position) directly below the filling element 12 and a non-use position of the cleaning cap 26, which is laterally offset from the use position. Preferably, the exchange system 30 can pivot the cleaning cap 26 toward its position directly below the filling element 12, particularly preferably about a plurality of parallel, spaced-apart pivot axes and / or from the non-use position.

[0066] Preferably, a pivoting direction of the container carrier 24 from its position directly below the filling member 12 and a pivoting direction of the cleaning cap 26 to its position directly below the filling member 12 can coincide with each other.

[0067] Preferably, the non-use position of the container carrier 24 and the non-use position of the cleaning cap 26 can be arranged on opposite sides of the changing system 30.

[0068] Furthermore, to complete the cleaning of the filling element 12, the exchange system 30 can move the container carrier 24 back to its position directly below the filling element 12, preferably pivoting it there, e.g., from its non-use position. Additionally, the exchange system 30 can move the cleaning cap 26 away from its (use) position directly below the filling element 12, preferably pivoting it away, e.g., into an overhead orientation of the cleaning cap 26 in its non-use position.

[0069] Preferably, the changing system 30 may comprise a lifting device 32 with a movable lifting element 34 and / or a pivoting device 38.

[0070] The lifting device 32 may preferably be the sole drive source for moving both the container carrier 24 from its position directly below the filling member 12 and the cleaning cap 26 to its position directly below the filling member 12.

[0071] Preferably, the exchange system 30 couples the movement (e.g., moving away and / or toward) of the container carrier 24 and the movement (e.g., moving toward and / or away) of the cleaning cap 26 to one another, particularly preferably mechanically. For example, the pivoting device 38 can connect the movable lifting element 34 to both the container carrier 24 and the cleaning cap 26.

[0072] As mentioned, the lifting device 32 can have the movable lifting element 34. The lifting element 34 can be vertically retractable and extendable. For example, the lifting element 34 can be designed as a lifting piston. The lifting piston can, for example, be guided in a (lifting) cylinder 36 for vertical movement. Together, the cylinder 36 and the lifting piston / lifting element 34 can form a piston-cylinder unit. Preferably, the lifting device 32 can be a pneumatic lifting device, e.g., a single-acting or double-acting pneumatic piston-cylinder unit. Alternatively, the lifting device 32 can be, for example, a motor-driven lifting device, an electric lifting device, or a mechanical lifting device.

[0073] It is possible that the lifting element 34 is elastically prestressed for lowering, as described herein by way of example with reference to the Figures 8 to 10 is explained.

[0074] The lifting device 32 can, for example, be arranged below the pivoting device 38 and / or below the container carrier 24.

[0075] Preferably, the lifting device 32 itself can be connected to the lifting system 22 in a height-adjustable manner. This means that the lifting system 22 can adjust the height of the lifting device 32 (and, for example, the pivoting device 38 connected thereto, the container carrier 24 connected thereto, and / or the cleaning cap 26 connected thereto).

[0076] The pivoting device 38 can, preferably driven by the lifting device 32, pivot the container carrier 24 towards and away from its position directly below the filling member 12 and the cleaning cap 26 towards and away from its position directly below the filling member 12, preferably mechanically coupled to each other.

[0077] The pivoting device 38 can, for example, be arranged between the container carrier 24 and the lifting device 32. The pivoting device 38 can have a housing 40 and a pivoting mechanism arranged therein.

[0078] The following is with reference to the Figures 3 to 6 a particularly preferred embodiment of the pivoting device 38 is described.

[0079] The pivoting device 38 may comprise a housing 40 and a pivoting mechanism arranged therein. The pivoting mechanism may, for example, comprise at least one lever element 42 (concealed in Figure 3 ; visible in Figure 4 ; omitted in Figures 5 and 6 ), at least one guide curve 44 (hidden in Figure 3 ; visible in Figures 4, 5 and 6 ) and at least one swivel arm 48 (concealed in Figure 3 ; visible in Figures 4 and 5 ; omitted in Figure 6 ).

[0080] Preferably, the pivoting device 38 has two mirror-symmetrically arranged lever elements 42, two mirror-symmetrically arranged guide curves 44, and two mirror-symmetrically arranged pivot arms 48. Preferably, the mirror symmetry can exist with respect to a vertical center plane of the pivoting device 38. For clarity, reference is made below to only one of the elements, etc.

[0081] The lever element 42 can be guided at a first end of the lever element 42 on the guide curve 44. For example, the lever element 42 can have a guide element 46, such as a guide pin, at its first end, which can engage with the guide curve 44.

[0082] The lever element 42 can be attached to the container carrier 24 at a second end of the lever element 42. For example, the lever element 42 can be fixedly attached to the container carrier 24 at its second end, for example by means of a screw connection.

[0083] The lever element 42 can be a two-sided lever. Between its first end and its second end, the lever element 42 can be pivotally connected to the movable lifting element 34. For example, the lever element 42 can be pivotally connected to an upper end of the movable lifting element 34. This connection can preferably be embodied as a horizontal pivot axis S1.

[0084] The lever element 42 can also be pivotally connected to the cleaning cap 26. For example, the lever element 42 can be pivotally connected to a lower end of the cleaning cap 26 (relative to an upright orientation of the cleaning cap 26). This connection can preferably be designed as a horizontal pivot axis S2.

[0085] Preferably, the lever element 42 with its three ends can be designed substantially triangularly.

[0086] The guide curve 44 is preferably arranged in an inner side of the housing 40. The guide curve 44 can, for example, be designed as a guide curve groove.

[0087] The guide curve 44 can be fixed relative to a stationary part, preferably the cylinder 36, of the lifting device 32, e.g. by means of a screw connection.

[0088] Preferably, the guide curve 44 has a stepped profile. In detail, the guide curve 44 can preferably have a first, substantially vertically extending guide curve section 44A, an adjoining second, substantially obliquely or horizontally extending guide curve section 44B, and an adjoining third, substantially vertically extending guide curve section 44C, optionally with a widening outlet end 45 (see Figure 6 ). The pivoting effected by this course is described in more detail herein with reference to Figure 7 described.

[0089] The guide curve 44 can also be referred to as a guide contour or guide slot.

[0090] The pivot arm 48 can be pivotally connected to the movable lifting element 34 of the lifting device 32 at a first end of the pivot arm 48. For example, the pivot arm 48 can be pivotally connected to an upper end of the movable lifting element 34. This connection can preferably be designed as a horizontal pivot axis S3. The pivot axis S3 can preferably be arranged above or below the pivot axis S1.

[0091] The pivot arm 48 can be pivotally connected to the cleaning cap 26 at a second end of the pivot arm 48. For example, the pivot arm 48 can be pivotally connected to a lower end of the cleaning cap 26 (relative to an upright orientation of the cleaning cap 26). This connection can preferably be embodied as a horizontal pivot axis S4. The pivot axis S4 can preferably be arranged laterally next to the pivot axis S3.

[0092] Preferably, the lever element 42 and the pivot arm 48 can thus be connected to the movable lifting element 34 via the pivot axes S1 and S3, respectively, and to the cleaning cap 26 via the pivot axes S2 and S4, respectively. Thus, the lever element 42 and the pivot arm 48 can jointly mechanically couple a movement of the container carrier 24 and a movement of the cleaning cap 26.

[0093] The pivot axis S1, S2, S3 and / or S4 can, for example, (each) be designed as a plain bearing (e.g. plain bearing bush) and a pin, journal or bolt rotatably mounted in the plain bearing.

[0094] Preferably, the pivot axes S1, S2, S3 and / or S4 can be spaced parallel to one another.

[0095] Preferably, an imaginary connecting line (lever line) between the pivot axes S1 and S2 and an imaginary connecting line (pivot arm line) between the pivot axes S3 and S4 can cross each other.

[0096] The following is with reference to the Figure 7 an operation of the exemplary changeover system 30 for changing to a cleaning operating mode of the device 10 is described in more detail. For a better understanding, Figure 7 the lifting device 32 is shown transparent and the housing of the swivel device 38 is shown open.

[0097] As shown in the first four drawings in Figure 7 can be tracked, in a first section of a stroke of the movable lifting element 34, a pivoting of the container carrier 24 from its position directly below the filling element 12 and a pivoting of the cleaning cap 26 into its position directly below the filling element 12 can be effected.

[0098] Here, the guide element 46 can follow the guide curve 44.

[0099] In the (optional) first guide curve section 44A, the container carrier 24 and the cleaning cap 26 can be slightly raised.

[0100] In the second guide curve section 44B, this causes the container carrier 24 to pivot from the position directly below the filling element 12 and the cleaning cap 26 to pivot into its position directly below the filling element 12. Due to the special configuration of the pivoting device 38 with the multiple pivot axes S1-S4 etc. explained as an example, the cleaning cap 26 can pivot over a larger angular range towards its position directly below the filling element 12 (e.g. between 90° and 180°) than the container carrier 24 pivots away from its position directly below the filling element 12 (e.g. between 45° and 90°).

[0101] At the end of the second guide curve section 44B, the cleaning cap 26 may already be aligned upright and preferably positioned directly below the lowered centering bell 16.

[0102] In the third guide curve section 44A, the container carrier 24 and the cleaning cap 26 can be raised further. The cap mouth 28 of the cleaning cap 26 can dip into the lowered centering bell 16 and rest against it internally. At the end of the third guide curve section 44C, the cap mouth 28 of the cleaning cap 26 can be positioned in the lowered centering bell 16.

[0103] As in the last two drawings in Figure 7 can be tracked, in a second section of the stroke, which follows the first section, of the movable lifting element 34 a pure lifting movement of the container carrier 24 and the cleaning cap 26 towards the filling element 12 can be effected.

[0104] The centering bell 16, guided by the vertical guide 18, can take over the vertical guidance of the cleaning cap 26 toward the filling element 12. Preferably, the centering bell 16 can be supported by the cleaning cap 26 and thus also lifted by the lifting device 32.

[0105] In the second section of the stroke, the fill level probe 20 can be immersed or inserted into the cleaning cap 26.

[0106] As soon as the centering bell 16 makes sealing contact with the filling material outlet of the filling element 12, the supply of the liquid cleaning agent for the CIP cleaning of the filling element 12 can begin.

[0107] At the end of the cleaning mode, the described movements can be carried out in reverse order.

[0108] Although the pivoting of the container carrier 24 and the cleaning cap 26 disclosed herein is particularly preferred, it is in principle possible to configure the exchange system 30 differently, e.g., for laterally displacing the container carrier 24 and / or the cleaning cap 26.

[0109] The Figures 8 to 10 show a modified device 10' (or sections thereof) with an exemplary lifting device 32 and a locking device 54.

[0110] It is understood that the locking device 54 is also generally disclosed herein and, for example, in the patent application with reference to Figures 2 to 7 explained exemplary device 10 may be included.

[0111] The lifting device 32 can preferably be designed as a mechanical lifting device.

[0112] For example, the lifting device 32 may have a lifting cam follower 50. The lifting cam follower 50 may be a stationary lifting cam (not shown in the Figures 8 to 10 ). For example, the cam follower 50 can be designed as a roller, as in Figure 8 is shown. The cam follower 50, designed as a roller, can roll along (e.g. on) the cam.

[0113] The lifting cam follower 50 can be operatively connected to the lifting element 34 for vertically moving the lifting element 34. For example, the lifting cam follower 50 can be arranged at a lower end of the lifting element 34. The lifting cam follower 50 can, for example, be rotatably supported at a lower end of the lifting element 34. The lifting cam follower 50 can transmit a height profile of the lifting cam to the lifting element 34.

[0114] Preferably, the lifting curve follower 50 can lift the lifting element 34 according to a height profile of the lifting curve. The cleaning cap 26 can thus be moved to its position directly below the filling element 12 (see, for example, Figure 2 ) and the container carrier 24 can thus be moved from its position directly below the filling element 12 (see e.g. Figure 2 ) can be moved away.

[0115] If, for example, the lifting element 34 and the associated lifting curve follower 50 are moved to the lowest position and the device 10' is rotated (cf. Figure 1 ), then the lifting cam follower 50 can rest against the lifting cam, e.g., sit on it. In the direction of rotation of the device 10', the lifting cam can then lift the lifting element 34 by means of the lifting cam follower 50, e.g., against an elastic preload of the lifting element 34.

[0116] It is possible that the lifting element 34 is elastically prestressed for lowering.

[0117] For example, the lifting element 34 can be elastically preloaded for lowering by means of an elastic element 52. The elastic element 52 can, for example, be arranged to act between the lifting element 34 and the cylinder 36. Preferably, the elastic element 52 can be arranged in the cylinder 36.

[0118] For example, the elastic element 52 can be designed as a (e.g., compression) spring, preferably a helical spring. The helical spring can be arranged coaxially with the lifting element 34. Preferably, the helical spring is arranged between an outer peripheral surface of the lifting element 34 and an inner peripheral surface of the cylinder 36.

[0119] By means of the elastic element 52, after use of the cleaning cap 26, e.g. after a CIP cleaning, the cleaning cap 26 can be removed from its position directly below the filling element 12 (see Figure 2) and the container carrier 24 can be moved to its position directly below the filling member 12 (see Figure 2 ) can be moved.

[0120] Purely as an example, the Figure 8 further that the cleaning cap 26 in its non-use position has an overhead orientation or is oriented downwards, wherein a longitudinal axis of the cleaning cap 26 forms an angle < 90°, preferably ≤ 45° or ≤ 25°, with a vertical axis.

[0121] The locking device 54 can be configured to lock the lifting element 34 in a position in which the cleaning cap 26 is positioned directly below the filling element 12. Preferably, the locking device 54 is a mechanical locking device.

[0122] Examples include the Figures 8 and 9 the locking device 54 in an unlocking or release position. In the Figure 10the locking device 54 is shown in a locking position.

[0123] The locking device 54 can have a (e.g., horizontally) movable locking element 56. The locking element 56 can lock the lifting element 34 in a raised position of the lifting element 34, e.g., when the cleaning cap 26 is positioned directly below the filling element 12. The locking element 56 can, for example, be a sheet metal or a (e.g., metal) block.

[0124] Preferably, the locking element 56 can lock the lifting element 34 to a shoulder 58 of the lifting element 34. The locking element 56 can serve as a stop for the shoulder 58. In the locking position, the shoulder 58 and the locking element 56 can contact each other (see Figure 10 ). In the release position, the shoulder 58 and the locking element 56 may be at odds with each other (see Figures 8 and 9 ).

[0125] For example, the lifting element 34 can have two elongated piston sections. The two piston sections can be arranged offset horizontally and vertically from one another. The two piston sections of the lifting element 38 can be connected to one another via the shoulder 58. For example, the lifting element 34 can be designed in a stepped manner with the shoulder 58 between the two piston sections. The lifting element 34 can preferably be multi-part, with two piston section parts that are connected and fastened to one another via a connecting part with the shoulder 58.

[0126] Alternatively, the lifting element 34 can be designed, for example, as a (single) continuous piston rod. The shoulder 58 could preferably be formed as a cutout, e.g., a groove, a hole, or a bore, in the piston rod.

[0127] Preferably, the locking element 56 can be elastically preloaded to assume the locking position. For example, an elastic element 60, such as a (e.g., coil and / or compression) spring, can elastically preload the locking element 56 to assume the locking position.

[0128] For example, one end of the elastic element 60 can be received in a support body 62. An opposite end of the elastic element 60 can be connected to, e.g., support, the locking element 56. The support body 62 can, for example, be attached to the cylinder 36. A longitudinal axis of the elastic element 60 can preferably extend horizontally.

[0129] The lifting element 34 can slide along an end face of the locking element 56. Once the lifting element 34 has reached a raised position (e.g., caused by the lifting cam follower 50 and the lifting cam), the shoulder 58 can have passed the locking element 56. An upper edge of the locking element 56 can then be positioned below the shoulder 58. The locking element 56 can then be moved (e.g., caused by the elastic element 60) below the shoulder 58 to assume the locking position, thereby locking the lifting element 34 in the raised position. Accordingly, the cleaning cap 26 can be held in its position directly below the filling element 12 (see Figure 2 ) can be locked.

[0130] Various techniques are conceivable for releasing the locking device 54. For example, the locking device 54 can be mechanically actuated to release the lifting element 34.

[0131] The locking device 54 may, for example, comprise a movable unlocking element 64, e.g., a pressure plate. The unlocking element 64 may be operatively connected to the locking element 56 to move the locking element 56 away from the locked position.

[0132] For example, the unlocking element 64 and the locking element 56 can be arranged on opposite circumferential sides of the lifting element 34. The operative connection between the unlocking element 64 and the locking element 56 can be formed, for example, via a clamp-shaped or fork-shaped connection that bypasses the lifting element 34.

[0133] Movement of the release element 64 toward the support body 62 can move the locking element 56 out of contact with the shoulder 58 until the lifting element 34 can pass the retracted locking element 56 again for lowering (e.g., under the action of the elastic element 52). A force applied by the release element 64 can preferably overcome the elastic preload of the locking element 56 by the elastic element 60.

[0134] For example, the unlocking element 64 can be moved by a stationary (e.g., pneumatic or electric) actuator (not shown). The actuator can, for example, retract and extend a control element (e.g., a control cam or roller). In the extended or retracted state of the actuator, the unlocking element 64 can run along the control element upon rotation of the device 10' and can be pushed away by the control element to move the locking element 56 to release the lifting element 34.

[0135] The invention is not limited to the preferred embodiments described above. Rather, a multitude of variants and modifications are possible which also make use of the inventive concept and therefore fall within the scope of protection. In particular, the invention also claims protection for the subject matter and features of the subclaims, independent of the claims referred to. In particular, the individual features of independent claim 1 are each disclosed independently of one another. In addition, the features of the subclaims are also disclosed independently of all features of independent claim 1 and, for example, independently of the features relating to the presence and / or configuration of the filling element, the container carrier, the cleaning cap and / or the exchange system of independent claim 1.All ranges stated herein are to be understood as being disclosed in such a way that all values ​​falling within the respective range are disclosed individually, e.g. also as preferred narrower outer limits of the respective range. List of reference symbols

[0136] 10Device for filling containers 12Filling device 14Top section 16Centering bell 18Vertical guide 20Filling level probe 22Lifting system 24Container carrier 26Cleaning cap 28Cap mouth 30Change system 32Lifting device 34Movable lifting element 36Cylinder 38Pivoting device 40Housing 42Lever element 44Guide curve 45Outlet end 46Guide element 48Pivoting arm 50Lifting curve follower 52Elastic element 54Locking device 56Locking element 58Shoulder 60Elastic element 62Carrier body 64Release element AZentral rotary axis S1-S4Swivel axis

Claims

1. A device (10), preferably a rotary device, for filling containers, the device (10) comprising: a filling element (12) for filling a container; a container carrier (24), preferably a container support plate, for supporting the container during filling of the container; a cleaning cap (26), preferably a CIP cleaning cap, for covering the filling element (12) during cleaning of the filling element (12); and a changing system (30) which is designed to move the container carrier (24) away from a position directly below the filling element (12), preferably to pivot it away, and to move the cleaning cap (26) towards a position directly below the filling element (12), preferably to pivot it towards it, particularly preferably about a plurality of spaced-apart pivot axes (S1, S2, S3, S4).

2. Device (10) according to claim 1, wherein: the changing system (30) is further designed to couple a movement of the container carrier (24) and a movement of the cleaning cap (26) to one another, preferably mechanically, wherein preferably: a movement of the container carrier (24) away from its position directly below the filling element (12) and a movement of the cleaning cap (26) towards its position directly below the filling element (12) are coupled to one another, preferably mechanically; and / or a movement of the container carrier (24) towards its position directly below the filling element (12) and a movement of the cleaning cap (26) away from its position directly below the filling element (12) are coupled to one another, preferably mechanically.

3. Device (10) according to claim 1 or claim 2, wherein: the changing system (30) has a pivoting device (38), preferably with a plurality of pivot axes (S1, S2, S3, S4), and / or a lifting device (32) with a movable lifting element (34), preferably a reciprocating piston, for moving the container carrier (24) and the cleaning cap (26).

4. Device (10) according to claim 3, wherein: the pivoting device (38) connects the movable lifting element (34) to the container carrier (24) and the cleaning cap (26).

5. Device (10) according to claim 3 or claim 4, wherein: the changing system (30) is further configured such that: - a first portion of a stroke of the movable lifting element (34) causes the container carrier (24) to pivot away from its position directly below the filling element (12) and the cleaning cap (26) to pivot towards its position directly below the filling element (12) by means of the pivoting device (38); and - a second portion of the stroke, which follows the first portion, causes the container carrier (24) and the cleaning cap (26) to lift towards the filling element (12).

6. Device (10) according to claim 5, wherein: the filling member (12) has a centering bell (16) into which a cap mouth (28) of the cleaning cap (26) can be inserted and which is vertically guided and movable for vertically guiding the container carrier (24) in the second section of the stroke.

7. Device (10) according to one of claims 3 to 6, wherein the pivoting device (38) comprises: a lever element (42) which: - is guided at a first end on a guide curve (44), preferably a guide curve groove; - is attached at a second end to the container carrier (24); and - is pivotally connected, preferably horizontally, to the movable lifting element (34) of the lifting device (32) between the first end and the second end; and optionally - is pivotally connected, preferably horizontally, to the cleaning cap (26) at a third end.

8. Device (10) according to claim 7, wherein at least one of the following is fulfilled: the guide curve (44) is enclosed in a housing part, preferably in an inner side of the housing part; the guide curve (44) is fixed relative to a stationary part, preferably a lifting cylinder (36), of the lifting device (32); the guide curve (44) has a stepped profile; and the guide curve (44) has a first, substantially vertically extending guide curve section (44A), an adjoining second, substantially obliquely or horizontally extending guide curve section (44B), and an adjoining third, substantially vertically extending guide curve section (44C), optionally with a widening outlet end (45).

9. Device (10) according to one of claims 3 to 8, wherein: the pivoting device (38) has a pivot arm (48) which: - is pivotally connected at a first end, preferably horizontally, to the movable lifting element (34) of the lifting device (32); and - is pivotally connected at a second end, preferably horizontally, to the cleaning cap (26).

10. Device (10) according to claim 9 and one of claims 7 or 8, wherein: the lever element (42) is connected to the movable lifting element (34) via a pivot axis (S1) and the pivot arm (48) is connected to the movable lifting element (34) via a pivot axis (S3) spaced therefrom, preferably parallel; and / or the lever element (42) is connected to the cleaning cap (26) via a pivot axis (S2) and the pivot arm (48) is connected to the cleaning cap (26) via a pivot axis (S4) spaced therefrom, preferably parallel.

11. Device (10) according to one of claims 3 to 10, wherein: the lifting device (32) has a lifting curve follower (50), preferably a roller, for following a lifting curve, wherein the lifting curve follower (50) is operatively connected to the lifting element (34) for vertically moving, preferably lifting, the lifting element (34), preferably arranged at a lower end of the lifting element (34).

12. Device (10) according to one of claims 3 to 11, further comprising: a, preferably mechanical, locking device (54) which is designed to lock, preferably automatically, the lifting element (34) when the cleaning cap (26) is positioned in its position directly below the filling member (12), wherein preferably at least one of the following is fulfilled: the locking device (54) is mechanically operable to release the lifting element (34); the lifting element (34) is elastically prestressed for lowering, preferably to move the container carrier (24) into its position directly below the filling member (12) and to move the cleaning cap (26) away from its position directly below the filling member (12); and the lifting element (34) is lockable by a locking element (56) of the locking device (54) on a shoulder (58) of the lifting element (34).

13. Device (10) according to one of the preceding claims, wherein at least one of the following is fulfilled: the changing system (30) is further designed to move, preferably pivot, the container carrier (24) to its position directly below the filling member (12) and to move the cleaning cap (26) away from its position directly below the filling member (12), preferably pivoting it away and / or into an overhead orientation of the cleaning cap (26), in order to end the cleaning of the filling member (12); the changing system (30) has a common and / or single drive source for moving both the container carrier (24) from its position directly below the filling member (12) and the cleaning cap (26) to their position directly below the filling member (12);the changing system (30) is further configured to pivot the cleaning cap (26) over a larger angular range toward its position directly below the filling member (12) than pivot the container carrier (24) away from its position directly below the filling member (12); and a non-use position of the container carrier (24) and a non-use position of the cleaning cap (26) are arranged on opposite sides of the changing system (30); 14. Device (10) according to one of the preceding claims, wherein: the filling element (12) has a fill level probe (20); and the cleaning cap (26) is dimensioned to receive the fill level probe (20); and optionally the changing system (30) is designed to move the cleaning cap (26) such that the fill level probe (20) is inserted into the cleaning cap (26) for cleaning the filling element (12).

15. Device (10) according to one of the preceding claims, further comprising: a lifting system (22) which is designed to jointly raise and lower the container carrier (24), the cleaning cap (26) and the changing system (30).

16. A method for operating a device (10), preferably according to one of the preceding claims, for filling containers, the method comprising: changing to a cleaning operating mode of the device (10) by moving, preferably pivoting away, a container carrier (24) from a position directly below a filling element (12) and moving, preferably pivoting, a cleaning cap (26), preferably about a plurality of spaced-apart pivot axes (S1, S2, S3, S4), to a position directly below the filling element (12) by means of a changing system (30).

17. The method according to claim 16, further comprising at least one of: terminating the cleaning mode of operation by moving, preferably pivoting, the container carrier (24) to its position directly below a filling member (12) and moving, preferably pivoting away, the cleaning cap (26) from its position directly below the filling member (12), preferably into an overhead orientation of the cleaning cap (26), by means of the changing system (30); coupling, preferably mechanically coupling, the moving, preferably pivoting away, of the container carrier (24) from its position directly below the filling member (12) and the moving, preferably pivoting, the cleaning cap (26) to its position directly below the filling member (12) by means of the changing system (30);Coupling, preferably mechanically coupling, a movement, preferably pivoting, of the container carrier (24) to its position directly below the filling element (12) and a movement, preferably pivoting, away of the cleaning cap (26) from its position directly below the filling element (12) by means of the changing system (30); vertically guiding the cleaning cap (26) towards the filling element (12) by means of a centering bell of the filling element (12); immersing a fill level probe (20) into the cleaning cap (26); locking the cleaning cap (26) in its position directly below the filling element (12) by means of a preferably mechanical locking device (54), which preferably locks a lifting element (34) of a lifting device (32) of the changing system (30);and elastically pretensioning a lifting element (34) of a lifting device (32) of the exchange system (30) to lower the lifting element (34) to move the container carrier (24) to its position directly below the filling member (12) and to move the cleaning cap (26) away from its position directly below the filling member (12).;

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