EP4232365A2 - Agencement de buse allongée - Google Patents

Agencement de buse allongée

Info

Publication number
EP4232365A2
EP4232365A2 EP21798591.0A EP21798591A EP4232365A2 EP 4232365 A2 EP4232365 A2 EP 4232365A2 EP 21798591 A EP21798591 A EP 21798591A EP 4232365 A2 EP4232365 A2 EP 4232365A2
Authority
EP
European Patent Office
Prior art keywords
seal
longitudinal
nozzle arrangement
web
sealing
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
EP21798591.0A
Other languages
German (de)
English (en)
Inventor
Reiner Paul
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.)
GEA Food Solutions Germany GmbH
Original Assignee
GEA Food Solutions Germany GmbH
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 GEA Food Solutions Germany GmbH filed Critical GEA Food Solutions Germany GmbH
Publication of EP4232365A2 publication Critical patent/EP4232365A2/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/046—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
    • B65B31/028—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material

Definitions

  • the present invention relates to a longitudinal nozzle arrangement and the seal of a packaging machine. Furthermore, the present invention relates to a sealing station that connects an upper web of material to the lower web of material and a method for producing a package.
  • Packaging machines are known from the prior art. In these packaging machines, a web of material or packaging trough is covered with a packaged product and this web of material/packaging trough is then hermetically sealed in a sealing station with a web of upper material. Before sealing, the atmosphere in the package is changed compared to the surrounding atmosphere, for example by reducing the pressure in the package and/or blowing a gas that differs from the composition of air into the package.
  • the packaging machine can be a thermoformer or a traysealer, for example. Paper, cardboard, metal, a plastic film and/or a combination of these can preferably be used as the material for the material web.
  • a longitudinal nozzle arrangement which has a longitudinal direction along which a large number of injection and/or suction openings are provided and which has a first end and a second end along the longitudinal direction, with a ramp being provided at at least one end, the slope of which extends at least in the longitudinal direction.
  • This subject matter of the present invention relates to a longitudinal nozzle arrangement with which a gas, in particular air, is sucked off between two material webs in a sealing station or a gas, in particular an inert gas such as N2 and/or Ar, or CO2 or O2 is blown in between the material webs.
  • the webs of material can each be a web of paper, cardboard, aluminum and/or plastic film.
  • the webs of material are transported in a packaging machine along a running direction, in particular intermittently, cyclically by a so-called advance or format length, i.e. a certain length of web of material, further transported.
  • a plurality of packaging troughs are preferably formed into the base web of material per cycle, or the web of material is left unformed, covered with the product to be packaged and then sealed in the sealing station after the gas exchange described above with the web of upper material.
  • Such a format has at least one column, one column preferably having a plurality of packaging troughs arranged transversely to the direction of transport of the base web of material.
  • Such a format preferably has a plurality of such columns, which are arranged one behind the other in relation to the transport direction of the base material web.
  • a format also preferably has several rows of packaging troughs, which are arranged parallel to the transport direction of the base material web.
  • the longitudinal nozzle arrangement is arranged in the region of at least one lateral edge, preferably both lateral edges of the material webs, with the direction of longitudinal extension of the longitudinal nozzle arrangement extending parallel to the running direction of the material web.
  • the longitudinal nozzle arrangement has a large number of openings, which are preferably provided next to one another, particularly preferably next to one another in a horizontal plane, in relation to the direction of longitudinal extension of the longitudinal nozzle arrangement or the direction of travel of the material web.
  • the longitudinal nozzle arrangement preferably has a flat nozzle whose horizontal extent transverse to the direction of longitudinal extent of the longitudinal nozzle arrangement is greater than its vertical extent transverse to the direction of longitudinal extent of the longitudinal nozzle arrangement.
  • the flat nozzle preferably has a large number of openings which are provided next to one another along the direction of the longitudinal extension of the flat nozzle.
  • the flat nozzle tapers towards the openings.
  • the lower web and the upper web of material rest on opposite sides of the flat nozzle, in particular when a gas is being drawn off or blown in.
  • a nozzle that is wedge-shaped at least in sections can be provided.
  • the bottom and top material webs preferably rest against opposite sides of the wedge-shaped nozzle, in particular when a gas is being drawn off or blown in.
  • the openings of the longitudinal nozzle arrangement can each be used for blowing in gas and/or for sucking off gas, in particular air.
  • the gas volume flow can preferably be set individually for each opening or for a group of several openings, independently of the volume flow of the other nozzles. This can be done manually or automatically.
  • one longitudinal nozzle arrangement is arranged on the right and left side of the material web relative to the direction of travel, one longitudinal nozzle arrangement can only be used for suction and one longitudinal nozzle arrangement only for blowing in a gas.
  • both longitudinal nozzle arrangements are used for blowing and/or sucking gas into the packaging.
  • the length of the longitudinal nozzle arrangement, in particular of the flat nozzle, in the direction of longitudinal extent preferably essentially corresponds to the format currently being produced or the length of the drawing during a cycle.
  • the length of the longitudinal nozzle arrangement, in particular the flat nozzle or wedge-shaped nozzle, in the direction of longitudinal extension essentially corresponds to the length of the maximum possible advance of the material web in one cycle.
  • openings in one or both end area(s) of the flat nozzle are preferably switched off.
  • the gas flow in the longitudinal nozzle arrangement can preferably be regulated during suction and/or during injection. This preferably relates to the gas volume flow and/or the amount of gas.
  • the openings of a longitudinal nozzle arrangement, via which gas is introduced and/or drawn off, can preferably be selected individually or as a group of several nozzles.
  • the adjustment of the gas flow and / or the selection of the openings is preferably carried out via at least one, preferably more valves, which are preferably in the Longitudinal nozzle arrangement are provided.
  • the valves are preferably adjusted automatically when there is a change in production.
  • the longitudinal nozzle arrangement has two channels, one for withdrawing gas, i.e. for evacuating the packaging and one for blowing in a gas, i.e. gassing the packaging.
  • Both channels can preferably be optionally connected to the openings, so that each opening can be used optionally for evacuation and for gassing.
  • the longitudinal nozzle arrangement is particularly advantageous and gentle on fibre-based / fibrous material webs that contain components of paper, corrugated board or cardboard, for example, since the gas exchange takes place through the longitudinal nozzle and the otherwise usual gas flow through the material web, for example through so-called lateral perforations, is no longer necessary, so that the Dust-generating cutting of the bores of the lateral perforation, for example in cardboard, is eliminated, after which less or no dust can get into the packaging and/or the cleaning effort, for example on the tools, can be reduced.
  • the longitudinal nozzle arrangement in particular the flat nozzles or wedge-shaped nozzles, has a first, front end and a second, rear end in relation to their longitudinal extension direction or the transport direction of the material web.
  • a ramp is provided on at least one of the two ends, the gradient of which extends at least in the longitudinal direction.
  • the ramp is preferably provided at the end(s) of the flat nozzle.
  • the longitudinal nozzle arrangement in particular the flat nozzle, preferably tapers towards the end of the longitudinal nozzle arrangement, in particular flat nozzle or wedge-shaped nozzle, in order, for example, to achieve a gentle adjustment of the level of the longitudinal nozzle arrangement, above all to the level of the upper tool, thereby reducing the tendency to form waves and creases in the material webs is significantly reduced.
  • the slope of the ramp does not have to be linear, but can also be curved. However, a linear gradient is preferred.
  • a second ramp is preferably provided on at least one of the two ends at which a ramp is provided, the slope of which preferably extends transversely to the direction of longitudinal extension and the first ramp, the slope of which is in the Longitudinally extends, is preferably superimposed.
  • the gradients of the two ramps are preferably the same or similar, but can also have different angles.
  • the gradients of each ramp can be the same over the length of the ramp or, for example, different in sections and/or designed as radii, for example crowned. It is particularly advantageous that the edge that may occur at the transition between the two ramps is rounded. Such two ramps form a ramp arrangement.
  • At least one ramp or ramp arrangement is preferably provided in the area between the front and rear end of the longitudinal nozzle arrangement and/or the flat nozzle and/or the wedge-shaped nozzle, for example in the case of a shorter format with, for example, only n-1 columns whose gradient is in and preferably also extends transversely to the direction of longitudinal extension.
  • this ramp is opposite a second ramp in the direction of longitudinal extension, with both ramps preferably being spaced apart from one another by a distance of a preferably straight path section or no distance being provided and their tapered ramp ends preferably facing one another.
  • this second ramp arrangement is located outside the format area, i.e. behind or in front of it, but after a subsequent tool change to a format with maximum length, for example, the second ramp is located within the format area, as is the first ramp opposite it.
  • the longitudinal nozzle arrangement in particular the flat nozzle or wedge-shaped nozzle, preferably has a tongue at one end, in particular the front, upstream end, which preferably extends transversely to the longitudinal direction of the nozzle arrangement or the flat nozzle.
  • the tongue is preferably interchangeable and/or made of a different material than the rest of the longitudinal nozzle arrangement.
  • the tongue is preferably made of a plastic, particularly preferably an elastic plastic.
  • a possible plastic material is, for example, caoutchouc or rubber or silicone.
  • the tongue and the rest of the longitudinal nozzle arrangement can also consist of the same material, for example aluminum or plastic.
  • the longitudinal nozzle arrangement is preferably manufactured at least partially by applying material in layers.
  • the flat nozzle preferably has an indentation on one of its surfaces, in particular on its underside, into which the transport means of the packaging machine, in particular the grippers on the chain links, can enter.
  • Another object of the present invention is a seal with a direction of longitudinal extension with a first and a second end, wherein a ramp is provided at at least one end, the slope of which extends in the direction of longitudinal extension.
  • the seal has a first, front and a second rear end, based on its direction of longitudinal extension or the transport direction of the material web.
  • a ramp is provided on at least one of the two ends, the slope of which extends in the longitudinal direction.
  • the seal tapers away from the end of the seal.
  • a second ramp is preferably provided on at least one of the two ends at which a ramp is provided, the gradient of which preferably extends transversely to the direction of longitudinal extent and is superimposed on the first ramp, the gradient of which extends in the direction of longitudinal extent.
  • the seal preferably has a ramp at one end, which preferably extends transversely to the direction of longitudinal extension.
  • the seal is preferably provided from a rubber-like, elastic material, for example silicone, and is preferably produced by injection molding.
  • the seal is preferably provided as a closed structure, i.e. endless.
  • the seal is cast or injection molded.
  • Another object of the present invention is a packaging machine in which a web of material is transported along a direction of travel to produce a package and which has a sealing station that seals the web of material with a web of upper material connects, wherein the sealing station has the longitudinal nozzle arrangement according to the invention and / or the seal according to the invention.
  • This subject matter of the present invention relates to a packaging machine for producing packaging in which a base material web, for example a cardboard or paper web, a plastic film or a material web, which in particular has a cardboard, paper, aluminum or other non-plastic layer, from a supply roll unrolled and preferably transported intermittently/cyclically along the packaging machine in a transport plane.
  • this web of lower film can then first be shaped by means of a deep-drawing tool in order to form, for example, a trough and/or a structure, in particular an anti-slip structure, in the web of lower material.
  • the forming station has a lower and an upper tool, which are moved towards one another for forming and away from one another for further transport of the lower web of material.
  • the lower tool is located below and the upper tool above the transport level of the lower web of material.
  • the packaging machine according to the invention several packages arranged in a so-called format are processed simultaneously and subsequently transported along the packaging machine at the same time.
  • the web of base material is preferably heated with a heating plate.
  • the lower web of material is then covered with a packaged product, in particular a foodstuff such as sausage, ham or cheese, and in a next step is closed with an upper film in a sealing station, with the upper film usually being sealed to the lower web of film.
  • the packaging thus finished is then separated by cutting out the packaging from the lower and upper web of material.
  • the facestock is also unwound from a supply roll.
  • a dancer is preferably located downstream of at least one supply roll, which dancer keeps the tension in the respective material web at least substantially constant.
  • the dancer can be a linear or a rotary dancer.
  • the packaging can also be a so-called traysealer, in which prefabricated packaging trays are covered with a packaged product and then sealed with a top film.
  • the sealing station has the longitudinal nozzle arrangement according to the invention and/or the seal according to the invention, which creates a different atmosphere in the packaging compared to the environment.
  • the pressure in the packaging and/or the composition of the atmosphere compared to air can be changed.
  • the expert speaks of evacuation and/or gassing. Before fumigation, the package can be evacuated to improve fumigation.
  • the gentle level adjustment of the longitudinal nozzle arrangement described above, in particular its flat nozzle or wedge-shaped nozzle, enables a significant reduction or even avoidance of folds and waves in the material webs when the molds are closed, a significantly improved sealing effect, hygiene and completeness of the gas exchange.
  • the risk of the packaging colliding with the longitudinal nozzle arrangement is avoided, especially when the closed packaging is being transported further.
  • a sealing station is particularly preferred in which the longitudinal nozzle arrangement according to the invention develops the sealing effect without the need for an additional seal made of a rubber-like, elastic material.
  • the longitudinal nozzle arrangement according to the invention in particular its flat nozzle or wedge-shaped nozzle, is arranged between the two webs of material for the evacuation and/or gassing.
  • the seal is located above the upper web of material and presses it against the longitudinal nozzle arrangement in a sealing manner during evacuation and/or gassing.
  • the lower web of material can also be pressed against the longitudinal nozzle arrangement in a sealing manner during evacuation and/or gassing.
  • the sealing station of the packaging machine preferably has a lower tool and an upper tool, the lower and/or upper tool preferably being provided such that they can be raised and lowered.
  • the upper die is located above the upper web and the lower die is located below the lower web.
  • the upper tool is preferably raised and the lower tool is preferably lowered, so that they each have little or no contact with the respective web of material, as a result of which the friction is reduced in the long term.
  • the seal is preferably connected to the upper tool and is raised or lowered with it.
  • the seal has a spring which is inserted into a groove in the upper tool and thereby reversibly connects the seal to the upper tool.
  • the upper tool presses the seal against the web of upper material and this against the longitudinal nozzle arrangement, in particular the flat nozzle.
  • the seal can be reversibly, elastically deformed.
  • the longitudinal nozzle arrangement is preferably connected directly or indirectly to a frame of the packaging machine, i.e. preferably provided in a stationary manner.
  • Another object of the present invention is a method for sealing an upper web of material to a web of material for the production of a package, wherein the atmosphere in the package is changed compared to the environment by means of a longitudinal nozzle arrangement, with a seal lying against the material web during the change in atmosphere and the webs of material are transported further after sealing and the seal is preferably raised before and/or during the further transport.
  • the seal is preferably raised before and/or during further transport of the web of material.
  • the seal is lowered again and pressed against the upper material web.
  • the seal is lowered and pressed against the facestock prior to and/or during the change in atmosphere.
  • a longitudinal nozzle arrangement according to the invention and/or the seal according to the invention are preferably used for changing the atmosphere.
  • the seal is preferably pressed against the longitudinal nozzle, in particular the ramp of the seal is pressed against the outlet ramp of the longitudinal nozzle arrangement, in particular the flat nozzle.
  • Another object of the present invention is a method for sealing an upper web of material to a web of material for the production of a package, wherein the atmosphere in the package is changed compared to the environment by means of a longitudinal nozzle arrangement, with a seal lying against the material web during the change in atmosphere and the webs of material are transported further after sealing, during which the longitudinal nozzle arrangement unfolds the sealing effect without the need for an additional seal made of a rubber-like, elastic material.
  • This preferred or inventive embodiment of the present invention has the advantage that the required sealing effect is achieved by the longitudinal nozzle in interaction with the material web.
  • the gas stream that enters the sealing tool through the respective injection and/or suction openings or is sucked out of it is preferably adjustable, in particular individually adjustable. This can be done manually or by motor.
  • the aim of the setting is preferably that the gas volume flow is at least essentially the same when sucking in and/or blowing out at all openings.
  • the openings from which gas exits or through which gas is sucked off and the gas lines connected to them, in particular to the extent that they are provided in the longitudinal nozzle, are separated from one another.
  • a valve is preferably provided in the gas line to which the injection openings are connected or the gas line to which the suction openings are connected, with which the respective line can be opened and closed in particular.
  • the respective valve is preferably provided at a distance from the openings connected thereto.
  • the gas volume in the injection line which is located between the valve and the openings, is also subjected to negative pressure.
  • the resulting gas flow pulls any contaminants out of the injection line so that it is cleaned.
  • the volume of gas in the suction line between the opening and the valve is compressed so that any contaminants that may be present in it are moved away from the suction opening and pushed into the line and thus do not get into the packaging to be produced.
  • FIG. 1 schematically shows the packaging machine according to the invention.
  • Figures 2-3 show detail of the seal, nozzle assembly and/or sealing station.
  • FIG. 1 shows the packaging machine 1 according to the invention, which optionally has a forming station 2 , a filling station 7 and a sealing station 15 .
  • the packaging machine can be a so-called thermoformer or a so-called traysealer.
  • a base material web 8, here a plastic film 8 is pulled off a supply roll and transported intermittently along the packaging machine according to the invention from right to left. With each cycle, the sub-material web 8 is transported further intermittently by a format length/advance length.
  • the packaging machine has two transport means 21 , in the present case two endless chains each, which are arranged to the right and left of the base material web 8 .
  • At least one gear wheel is provided for each chain both at the beginning and at the end of the packaging machine, around which the respective chain is deflected. At least one of these gears is driven.
  • the gear wheels in the input area and/or in the output area can be connected to one another, preferably by a rigid shaft.
  • Each transport means 21 has a large number of clamping means/grippers 22 which grip the base material web 8 in a clamping manner in the inlet area and transmit the movement of the transport means to the base material web 8 .
  • a heating means can be provided downstream of the inlet area, which heats the base material web 8, in particular when the latter is stationary.
  • the optional forming station 2 has a lower tool 4 and an upper tool 3 .
  • the lower tool 4 can be moved up and down, being moved upwards in the direction of the lower material web 8 for shaping and downwards for further transport of the lower material web 8 .
  • the web of base material is preferably clamped between the two tools 3, 4.
  • the lower tool 4 can be arranged on a lifting table 5, which, as symbolized by the double arrow, can be vertically adjustable in order to produce the movement of the lower tool described above.
  • the packaging troughs 6 indicated here formed in the base material web or the base material web 8 are then filled with the packaged goods 16 in the filling station 7 .
  • an upper film 14 is materially attached to the lower web of material 8 by sealing.
  • the movement of the lower material web 8 is transferred to the upper material web 14 .
  • the upper tool and/or optionally the lower tool are lowered or raised before and after each film transport.
  • the upper film 14 can also be guided in transport means or transported by transport chains, with these transport means then only extending in front of the sealing station and possibly upstream. Otherwise, the statements made regarding the means of transport for the lower film apply.
  • the top film can also be heated and/or thermoformed with a heating means.
  • a sealing frame is provided as the lower tool 11 for sealing, which has an opening per packaging trough, into which the packaging trough, if present, dips during sealing, ie during the upward movement of the lower sealing tool.
  • the upper and lower webs of material are pressed together between the upper and lower tools 12, 11 and bond under the influence of heat and pressure. After sealing, the tools 11, 12 are moved apart again vertically.
  • a dancer For example, a rotary dancer can be provided, which keeps the material web 14 at a constant tension as far as possible.
  • a dancer is preferably also provided in the area of the base material web 8, preferably downstream of the supply roll.
  • the dancer is preferably a linear dancer.
  • a gas exchange preferably takes place in each packaging cavity.
  • the air present in the packaging trough can first be partially sucked off and/or replaced by an exchange gas.
  • the packaging machine has the longitudinal nozzle arrangement explained in more detail in FIGS.
  • the finished packages are separated, which is done with the cross cutter 18 and the longitudinal cutter 17, for example.
  • the cross cutter 18 can also be raised or lowered with a lifting device 9 .
  • the sealing tool 11, 12 has a punch that cuts through the lower and upper material web before, during and/or after the sealing.
  • several packages are produced at the same time in each cycle, which are arranged in a so-called format as a matrix.
  • FIG. 2 shows the first end 28 of the longitudinal nozzle arrangement 10 or of the seal 19 or, in other words, the inlet side. This end is the upstream end in relation to the transport direction 20 of the material web.
  • FIG. 3 shows the second end 29 of the longitudinal nozzle arrangement 10 or of the seal 19 or, in other words, the outlet side, in relation to the transport direction 20 of the material web. This end is the downstream end in relation to the transport direction 20 of the material web.
  • a longitudinal nozzle arrangement can also be provided on the other edge of the material web.
  • the longitudinal nozzle arrangement has a direction of longitudinal extension 27 which extends at least essentially parallel to the transport direction 20 .
  • a nozzle 26 is provided along this direction of longitudinal extent 27, which nozzle has a multiplicity of openings 21, which are arranged next to one another here.
  • the openings 21 can optionally be used to extract air from one or more packages and/or to blow in an inert gas.
  • the longitudinal nozzle arrangement has one or more valves. With this / these or one or more other valves, the gas volume flow during suction and / or injection and / or Gas volume can be set. All or some valves can be adjusted manually or automatically.
  • the length of the longitudinal nozzle arrangement in the direction of longitudinal extension can at least essentially correspond to the length of the pre-feed of the format currently being produced.
  • the nozzle 26 is designed as a flat nozzle, ie its horizontal extent transverse to the direction of longitudinal extent 27 is larger, preferably substantially larger, than its vertical extent transverse to the direction of longitudinal extent 27.
  • the flat nozzle tapers in the direction of the openings.
  • the openings 21 can preferably be controlled individually, particularly preferably in groups.
  • two longitudinal nozzle arrangements 10 one to the right and one to the left of the material web, only gas can be sucked off with one longitudinal nozzle arrangement and only gas can be drawn off with one nozzle arrangement.
  • the flat nozzle is delimited on the inlet side by a tongue 22, which here extends transversely to the longitudinal direction 27 of the longitudinal nozzle arrangement.
  • the tongue 22 is preferably a separate component which is connected to the longitudinal nozzle arrangement.
  • the tongue is preferably made of an elastic plastic material and is preferably provided to be exchangeable.
  • FIG. 3 shows that the longitudinal nozzle arrangement, here the flat nozzle, has a ramp 24 at its outlet end 29 which tapers in the running direction 20 of the material web or towards its outlet end.
  • the ramp 24 can be connected to the flat nozzle in one piece or can be provided as a separate component.
  • the ramp extends parallel to the direction of longitudinal extent of the longitudinal nozzle arrangement or parallel to the transport direction of the material web 8, 14.
  • the tongue 22 can also be replaced by a ramp 24, the height of which increases in the running direction of the material web until it has reached the height of the flat nozzle.
  • the longitudinal nozzle assembly 10 is preferably with the
  • the Flat nozzle 26 is located above the means of transport, in particular the chain with the grippers.
  • the underside of the flat nozzle is preferably concave, at least in sections, so that the grippers partially protrude into this concavity.
  • the outlet bevel 25 extends parallel to the transport direction of the material web.
  • the outlet bevel forms a transition area between a thinner area of the seal, which extends parallel to the direction of transport of the material web or above the flat nozzle, and a thick area that extends transversely to the direction of transport of the material web or transversely to the flat nozzle 26 .
  • the inlet area of the seal 19 is shown in FIG. In this area, an inlet slope 22 is provided, which extends transversely to the transport direction of the material web.
  • the inlet slope 23 forms a transition area between a thinner area of the seal, which extends parallel to the transport direction of the material web or above the flat nozzle, and a thick area that extends transversely to the transport direction of the material web or transversely to the flat nozzle 26 .
  • this area of the seal is designed analogously to the bevel 25 .
  • the seal can preferably be raised or lowered.
  • the seal 19 is preferably connected to an upper tool 12 which is raised or lowered.
  • the seal 19 is preferably designed as a closed shape, in particular as a closed rectangle or square, which extends all around a packaging or a format of packaging.
  • a lower tool 11 is also shown in FIGS. 2 and 3, which acts as a counter bearing during sealing and can have cavities for the packaging.
  • this tool is raised and lowered as symbolized by the double arrow.
  • the method according to the invention is carried out as follows.
  • a package or a web of material 8 with one or more packaging troughs is introduced into the sealing station, for example by cyclically transporting the web of material 8.
  • the Packaging or the web of material 8 is then below the flat nozzle 26 and above the lower tool 11.
  • Above the flat nozzle 26 is the upper web of material 14, which is sealed to the packaging or the web of material 8.
  • the seal 19 then lowers and presses the upper material web against the flat nozzle 26 or against the lower tool 11.
  • the lower tool 11 rises and presses the material web 8 against the flat nozzle 26 or against the seal 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Abstract

L'invention concerne une buse de diffusion gazeuse allongée et un joint d'étanchéité d'une machine d'emballage. L'invention concerne par ailleurs un poste de scellage dans lequel une bande de matière supérieure est reliée à une bande de matière inférieure, ainsi qu'un procédé pour réaliser un emballage.
EP21798591.0A 2020-10-21 2021-10-18 Agencement de buse allongée Pending EP4232365A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020213308 2020-10-21
PCT/EP2021/078779 WO2022084235A2 (fr) 2020-10-21 2021-10-18 Agencement de buse allongée

Publications (1)

Publication Number Publication Date
EP4232365A2 true EP4232365A2 (fr) 2023-08-30

Family

ID=78402078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21798591.0A Pending EP4232365A2 (fr) 2020-10-21 2021-10-18 Agencement de buse allongée

Country Status (3)

Country Link
US (1) US20230382579A1 (fr)
EP (1) EP4232365A2 (fr)
WO (1) WO2022084235A2 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965034A (en) * 1962-08-15 1964-07-29 Mayer & Co Inc O Package forming apparatus and components thereof
JPS6332103U (fr) * 1986-08-19 1988-03-02
US5323590A (en) * 1986-09-03 1994-06-28 Seawell North America, Inc. Method of producing food packaging with gas between tensioned film and lid
US5534282A (en) * 1989-08-30 1996-07-09 Seawell North America Inc. Packing perishable goods
US20040081729A1 (en) * 1997-03-13 2004-04-29 Garwood Anthony J.M. Continuous production and packaging of perishable goods in low oxygen environments
EP1021338B1 (fr) * 1997-10-06 2002-04-03 ROSSI, Jean-Pierre Dispositif de conditionnement sous atmosphere controlee de produits dans les emballages opercules par un film
DE29912090U1 (de) * 1999-07-14 1999-09-02 Ps Systempack Gmbh Düsenleiste zum Evakuieren und Aufgeben von Inertgasen/Prüfsubstanzen in Verpackungseinheiten
DE102012220730A1 (de) * 2012-11-14 2014-05-15 Robert Bosch Gmbh Schlauchbeutelmaschine mit einer Gaseinstellvorrichtung sowie Gaseinstellvorrichtung für eine derartige Schlauchbeutelmaschine
KR102573775B1 (ko) * 2015-09-10 2023-09-04 삼성전자주식회사 진공 흡입 노즐 및 이를 포함하는 진공 흡입 장치

Also Published As

Publication number Publication date
US20230382579A1 (en) 2023-11-30
WO2022084235A3 (fr) 2022-07-14
WO2022084235A2 (fr) 2022-04-28

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