EP4141367A1 - Dispositif de soufflage des conteneurs à isolation acoustique - Google Patents

Dispositif de soufflage des conteneurs à isolation acoustique Download PDF

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Publication number
EP4141367A1
EP4141367A1 EP22179067.8A EP22179067A EP4141367A1 EP 4141367 A1 EP4141367 A1 EP 4141367A1 EP 22179067 A EP22179067 A EP 22179067A EP 4141367 A1 EP4141367 A1 EP 4141367A1
Authority
EP
European Patent Office
Prior art keywords
noise protection
containers
blow
area
noise
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22179067.8A
Other languages
German (de)
English (en)
Inventor
Tobias Markl
Michael SIGL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP4141367A1 publication Critical patent/EP4141367A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/08—Parts thereof
    • F26B25/12—Walls or sides; Doors
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials

Definitions

  • the present invention relates to a device for treating containers.
  • devices for treating containers are known from the prior art, such as blow molding machines, filling machines, machines for drying containers and the like.
  • the present invention is described with reference to a device for drying or blowing off containers. It should be noted, however, that the present invention is applicable to other devices, particularly those that generate significant noise during a treatment process.
  • noise protection tunnels are located in the inlet and outlet of a container blow-off device in order to reduce noise emissions. These tunnels can be opened on both sides with a twist lock for cleaning. There are plastic slats on the corresponding doors, which break up the sound and reduce the sound level.
  • the sound-absorbing plastic panels provide a smooth and cleanable surface, but the reduction in noise emissions is limited. Porous surfaces such as those of the foam panels can therefore not be used with significantly higher noise reduction for hygienic reasons.
  • the present invention is therefore based on the object of providing sound insulation for such devices which can also be used in the humid environments described here. According to the invention, this object is achieved by the subject matter of the independent claim. Advantageous embodiments and developments are the subject of the dependent claims.
  • a device according to the invention for treating and in particular drying containers has a transport device which transports the containers through a blow-off area and/or is suitable and intended for transporting the containers through a blow-off area, with at least one discharge device being arranged in this blow-off area applies a gaseous medium to the containers and/or which is suitable and intended to apply a gaseous medium to the containers. Furthermore, the blow-off area is arranged within a housing which at least partially surrounds this blow-off area.
  • a feed opening is provided, via which the containers are fed to the blow-off area and/or via which the containers can be fed to the blow-off area, as well as a discharge opening, via which the containers are removed from the blow-off area again and/or via which the containers are removed from the blow-off area can be discharged.
  • a sound-reducing device is provided, which reduces or reduces the sound occurring inside the blow-off area and/or which is suitable and intended for reducing or reducing the sound arising inside the blow-off area.
  • the sound-reducing device has at least one sound-insulating wall formed within the housing, with this sound-insulating wall a first flat noise protection element having a foam material, and a noise protection body arranged adjacent to this first noise protection element, with a surface of this noise protection body facing the containers.
  • a noise reduction device is therefore understood to be a device which reduces the noise penetrating outwards from the blow-off area. This can take place in that the sound is at least partially absorbed by the sound reduction device, but multiple reflections of sound within the blow-off area would also be conceivable.
  • the noise protection body and the noise protection element are preferably components of this noise reduction device.
  • this noise reduction device is constructed in at least two parts and contains the noise protection element on the one hand and the noise protection body on the other.
  • both the noise protection element and the noise protection body have at least partially flat surfaces.
  • the transport device is preferably suitable and intended for transporting the containers in one row and/or in one lane. It is possible for the containers to be transported touching one another or, preferably, individually.
  • the transport device can have holding devices for holding the containers. It would also be possible for the transport device to have a transport belt on which the containers are transported (in particular upright).
  • the transport device is suitable and intended for transporting the containers at a transport speed that is greater than 0.2 m/s, preferably greater than 0.3 m/s, and/or less than 3.0 m/s .
  • At least one element or device of the sound reduction device in particular the noise protection body and/or the noise protection element, can be cleaned with heated water or with hot water.
  • the noise protection element is preferably arranged with respect to the noise protection body in such a way that the noise protection body (or at least one surface of the noise protection body) faces the containers (in particular directly). In other words, is preferred the noise protection body is arranged between the noise protection element and the containers to be blown off.
  • the housing preferably forms a noise protection tunnel through which the containers are transported. In a preferred embodiment, additional soundproofing elements are provided at the feed and discharge openings.
  • the feed opening and/or the discharge opening can be adapted to a shape or shape of the containers.
  • the feed opening and/or the discharge opening can be formed in an exchangeable wall element. By exchanging this wall element, it is possible to adapt to different container geometries. This can also contribute to noise reduction.
  • the noise protection body preferably also acts as a splash protection body, which is suitable and intended for keeping liquid originating from the containers away from the noise protection element.
  • the transport device has a conveyor belt which transports the containers.
  • the transport device preferably transports the containers in an upright position.
  • the transport device it would also be possible for the transport device to have gripping devices which grip the containers to be blown off.
  • the transport device is preferably suitable for this and determines the containers to be transported along a straight transport path.
  • the housing surrounds the blow-off area essentially completely and particularly preferably completely.
  • At least the noise protection element and/or the noise protection body is advantageously arranged on a carrier.
  • the noise protection element and the noise protection body are preferably arranged on the same carrier. It is possible for this carrier to have a wall which bears against the noise protection element and in particular bears flat. In a preferred embodiment, this support has a receiving area, in particular a receiving area designed in the manner of a trough, which receives the noise protection element.
  • the noise protection element can also be protected from liquids by this receiving area and/or the carrier.
  • the sound-insulating wall is preferably arranged or fastened to a door or, in general, to a movable wall that enables the housing to be opened.
  • the noise protection body has a large number of openings.
  • This can be, for example, slit-like openings. Particularly preferably, these openings are evenly distributed over at least a section of the surface of the noise protection body.
  • the openings are particularly preferably through openings, ie. H. Openings ranging from one surface of the noise barrier to the other surface of the noise barrier. It is possible, for example, for a large number of openings to be arranged in a row or along a line. These openings cause sound to pass through and ultimately, as will be described in detail, to attenuate the sound.
  • a noise protection package is attached to an area of the housing, in particular on the inside of the tunnel, for example on the doors and a cover, which package preferably also has a housing.
  • This noise protection package or the noise reduction device has an internal noise insulation mat (i.e. the noise protection element mentioned above) and the slotted area or the area with openings described here (i.e. the noise protection body mentioned).
  • the openings are micro-apertures and in particular micro-slots. As mentioned, these are preferably distributed regularly.
  • a slit-shaped opening is understood to mean an opening that extends significantly further in a specific main extension direction than in a direction perpendicular thereto.
  • these micro-openings have a triangular shape and in particular the shape of isosceles triangles. In this way, a particularly preferred reduction in noise can be achieved.
  • the noise protection body is designed as a metal sheet with a predetermined, and in particular predetermined, uniform thickness.
  • the noise protection body can be an aluminum sheet or a steel sheet.
  • Said thickness is preferably greater than 0.2 mm, preferably greater than 0.3 mm and particularly preferably greater than 0.4 mm. In a further preferred embodiment, this thickness is preferably less than 2.5 mm, preferably less than 2.0 mm, preferably less than 1.5 mm, preferably less than 1.00 mm and particularly preferably less than 0.8 mm.
  • the noise protection element and the noise protection body are spaced apart from one another at least in sections. It is possible that there is a certain minimum distance between the noise protection body and the noise protection element, but this distance changes at least in one direction.
  • this spacing creates a cavity in which sound is additionally absorbed.
  • the noise protection element is a mat and/or the noise protection element has a PUR foam or consists of a PUR foam.
  • At least one surface of the noise protection element and in particular a surface that extends in the longitudinal direction and in the width direction of the noise protection element is flat. At least two surfaces of the foam element are preferably flat.
  • the noise protection element has a thickness (a thickness extending in a thickness direction, the thickness direction being perpendicular to the longitudinal and to the width direction) that is greater than 3 mm, preferably greater than 5 mm, preferably greater than 10 mm and more preferably greater than 12 mm.
  • the thickness is particularly preferably less than 150 mm, preferably less than 100 mm and particularly preferably less than 80 mm.
  • said noise insulation mat be designed in such a way that it absorbs sound waves.
  • noise emissions are reduced by 3 dbA.
  • the noise protection body or the micro-slotted sheet metal can be easily cleaned by opening the doors on the noise protection tunnel.
  • the internal noise insulation mat i.e. the noise protection element
  • the internal noise insulation mat i.e. the noise protection element
  • the noise protection body is protected from water, product residues and cleaning agents by the housing on the one hand and the noise protection body on the other. If necessary, it is possible for the noise protection body to be removed by opening fastening elements such as knurled screws, for example during the cleaning interval, and cleaned separately in a washing machine.
  • the noise protection body can therefore be removed from the noise protection element. This can be done, for example, with the knurled screws mentioned.
  • the noise protection body is particularly preferably separable from the housing and can therefore be treated separately, for example cleaned or washed.
  • the noise protection element can also be removed. In this way, the noise protection mat or the noise protection element can be replaced by another noise protection element or can also be cleaned.
  • the noise protection body preferably has changing and, in particular, periodically changing distances from the noise protection element. These distances are preferably achieved in that the noise protection body itself is designed, for example, in a zigzag shape or generally with a periodic extension in a predetermined direction.
  • the noise protection body (in at least one direction and preferably in exactly one direction) has a zigzag shape.
  • the individual surface sections of the noise protection body can each be of planar design, such a section being joined by a further ( but preferably also flat) section adjoins.
  • the device has a plurality of the soundproofing walls described here.
  • the soundproofing walls described here For example, several doors, a ceiling or the floor can be equipped with such sound insulation walls be.
  • the noise reduction device has a support wall on which the noise protection element and the noise protection body are arranged.
  • the sound reduction device is therefore preferably composed of the support wall or a support housing, as well as the noise protection element and the noise protection body.
  • the noise protection body or the noise protection element is a fabric and in particular a calendered fabric.
  • the openings in the noise protection bodies are designed in such a way that a direction of passage through the noise protection body perpendicular to the plane of the noise protection body is blocked.
  • a passage through the noise protection body is advantageously possible in a straight direction, which encloses an angle of at least 20°, preferably at least 40° and preferably at least 60° with a direction perpendicular to the plane.
  • the noise protection body is preferably a micro-slit sheet metal (semi-finished product). This micro-slotted sheet metal can be easily cleaned by opening doors on the noise protection duct.
  • the internal noise insulation mat i.e. the noise protection element
  • the noise protection body is preferably a slotted and in particular micro-slotted metal sheet made of (especially stainless) steel, for example V2A or V4A or other non-rusting and preferably food-safe sheet metal.
  • the present invention is also directed to methods for treating and in particular drying containers, with a transport device transporting the containers through a blow-off area, with at least one blow-off device being arranged in this blow-off area, which applies a gaseous medium to the containers, the blow-off area being inside a housing is arranged, which this Blow-off area at least partially surrounds. Furthermore, the containers are fed to the blow-off area via a feed opening and the containers are removed from the blow-off area again via a discharge opening and the noise produced inside the blow-off area is reduced with a noise reduction device,
  • the sound reduction device has at least one sound insulation wall formed within the housing, this sound insulation wall having a first flat noise protection element having a foam material, and a noise protection body arranged adjacent to this first noise protection element, with one surface of this noise protection body (64) facing and/or becoming the containers .
  • the noise reduction device is particularly preferably designed in the manner described above.
  • figure 1 10 shows a representation of a device 100 for treating containers according to the prior art.
  • This has a housing 108, inside which a blow-off device for containers is arranged.
  • the reference number 2 designates a transport device which transports the containers through the housing and thus to the blow-off.
  • the reference numerals 14 and 16 denote sound insulation devices which are arranged at the entrances and exits of the housing 108 .
  • FIG 2 shows a detailed illustration of one of the sound insulation devices according to the prior art.
  • the reference number 16a refers to an opening through which containers can be carried out.
  • figure 3 shows an interior view of the sound insulation device figure 2 According to the state of the art. It can be seen that several plates 18 are arranged inside the housing, which cause the breaking of sound waves and thus also a certain degree of insulation.
  • FIG 4 shows a representation of a device according to the invention.
  • the reference number 8 refers to a housing.
  • a sound reduction device, designated 6 is arranged within the housing. This has a large number of soundproofing walls 60 (wherein one soundproofing wall is shown on a side wall and one on the ceiling.
  • Reference number 64 designates a noise protection body which is part of this soundproofing wall. This runs zigzag here in the transport direction of the containers.
  • figure 5 shows an interior of the housing 8.
  • the noise protection body 64 is also shown here, which, as can be seen here, has a jagged or zigzag-like structure on both a side wall and on the ceiling.
  • figure 6 shows a sound reduction device or sound reduction device 6, which at a Wall element such as a door 32 is arranged.
  • a housing or a frame 66 can also be seen here, on which the noise reduction device 6 is arranged.
  • the noise barrier 64 preferably has a plurality of openings (not shown) extending from the surface of the noise barrier 64 shown in the figure to the opposite surface.
  • the micro-perforated noise protection body is connected to the door - preferably by means of knurled screws - and can be dismantled without tools for cleaning purposes.
  • FIG 7 shows a representation of the noise reduction device 6.
  • the frame or the housing 66 is shown.
  • the noise protection body 64 is releasably attached to the frame or housing 66 by means of a fastening device, such as knurled screws 15 here. In this way, the noise protection body 64 can be removed and, for example, cleaned separately.
  • figure 8 shows a side view of a noise reduction device.
  • This has the noise protection body 64 (micro-perforated sheet metal) and a noise protection element 62 which, as mentioned above, can be a PUR mat, for example.
  • An intermediate space Z is formed between the noise protection body 64 and the noise protection element 62 and is also used to reduce noise.
  • Both the noise protection body 64 and the noise protection element 62 are arranged on the housing or frame 66 .
  • figure 9 shows a representation of a further embodiment of a noise reduction device.
  • two noise protection bodies 64 and 64a are provided, which are arranged parallel to one another here and form a further intermediate space between them.
  • this intermediate space also runs in a zigzag fashion.
  • FIG 10 shows a schematic representation of a device according to the invention.
  • an application device or blow-off device 4 is shown schematically, which blows off the containers.
  • the two (additional) noise protection devices 14 and 16 are also shown here again. It can be seen that the device has a multiplicity of pivoting doors, which is represented by the dashed lines S in each case. Noise protection devices or the sound insulation walls are preferably arranged on these doors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Drying Of Solid Materials (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP22179067.8A 2021-08-27 2022-06-14 Dispositif de soufflage des conteneurs à isolation acoustique Pending EP4141367A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202021104614.7U DE202021104614U1 (de) 2021-08-27 2021-08-27 Vorrichtung zum Abblasen von Behältnissen mit Schallisolierung

Publications (1)

Publication Number Publication Date
EP4141367A1 true EP4141367A1 (fr) 2023-03-01

Family

ID=82067795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22179067.8A Pending EP4141367A1 (fr) 2021-08-27 2022-06-14 Dispositif de soufflage des conteneurs à isolation acoustique

Country Status (3)

Country Link
EP (1) EP4141367A1 (fr)
CN (1) CN218866709U (fr)
DE (1) DE202021104614U1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253812A1 (de) * 1972-11-03 1974-05-09 Norbert Joerss Foerdervorrichtung fuer freistehende gegenstaende
US4093066A (en) * 1977-02-28 1978-06-06 The Coca-Cola Company Acoustical conveyor cover
DE8432989U1 (de) * 1984-11-10 1985-02-21 Hartig, Werner, 6054 Rodgau Schallschutzeinrichtung
DE8810307U1 (de) * 1988-08-13 1988-12-22 Bohrer, Ludwig, 8413 Regenstauf Vorrichtung zum Trocknen von Kästen in einem Luftstrom
DE102009058548A1 (de) * 2009-12-17 2011-06-22 AKsys GmbH, 67547 Lärmschutzwand für Verkehrswege
CN203163442U (zh) * 2013-03-20 2013-08-28 佛山市潜信达酿酒包装设备有限公司 风刀式低噪音节能干瓶机
CN210512514U (zh) * 2019-09-27 2020-05-12 大洲新燕(厦门)生物科技有限公司 一种瓶体风干装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317113A (en) 1992-07-01 1994-05-31 Industrial Acoustics Company, Inc. Anechoic structural elements and chamber
FR2698059B1 (fr) 1992-11-17 1995-01-27 Olin Garniture composite pour carrosseries, carcasses et structures diverses.
DE102010030824A1 (de) 2010-07-01 2012-01-05 Krones Aktiengesellschaft Flaschentrocknung mit Vibration
WO2019059046A1 (fr) 2017-09-25 2019-03-28 富士フイルム株式会社 Structure d'insonorisation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253812A1 (de) * 1972-11-03 1974-05-09 Norbert Joerss Foerdervorrichtung fuer freistehende gegenstaende
US4093066A (en) * 1977-02-28 1978-06-06 The Coca-Cola Company Acoustical conveyor cover
DE8432989U1 (de) * 1984-11-10 1985-02-21 Hartig, Werner, 6054 Rodgau Schallschutzeinrichtung
DE8810307U1 (de) * 1988-08-13 1988-12-22 Bohrer, Ludwig, 8413 Regenstauf Vorrichtung zum Trocknen von Kästen in einem Luftstrom
DE102009058548A1 (de) * 2009-12-17 2011-06-22 AKsys GmbH, 67547 Lärmschutzwand für Verkehrswege
CN203163442U (zh) * 2013-03-20 2013-08-28 佛山市潜信达酿酒包装设备有限公司 风刀式低噪音节能干瓶机
CN210512514U (zh) * 2019-09-27 2020-05-12 大洲新燕(厦门)生物科技有限公司 一种瓶体风干装置

Also Published As

Publication number Publication date
CN218866709U (zh) 2023-04-14
DE202021104614U1 (de) 2022-11-29

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