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
  • 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
• • 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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
• • 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
  • B65B31/021—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 the containers or wrappers being interconnected
• • 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
  • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
• • 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
  • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
  • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
  • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting

Definitions

• the present invention relates to a packaging machine with a thermoforming station that forms packaging trays in a web and a sealing station, the one
• the present invention relates to a method for producing a package in which a web of goods cyclically transported along a packaging machine and molded per cycle one or more packaging trays in the web and the
• Packaging tray is then filled with a packaged product and then a lidding film is sealed to the packaging tray, being drawn before sealing in the packaging tray vacuum and / or gas exchange is made.
• the packaging trays are often evacuated prior to sealing with a lidding film, i. H. the air contained therein is withdrawn and possibly replaced by a replacement gas.
• This replacement gas may, for example, to
• Nitrogen, carbon dioxide, argon and / or oxygen or a mixture of these or other gases are important to produce such evacuated or provided with a replacement gas packaging.
• packaging machines, or on packaging methods that can produce such evacuated or provided with a replacement gas packaging nowadays ever greater requirements in terms of performance, d. H. the produced packaging per minute.
• thermoforming station that forms packaging trays in a web and a sealing station
• the present invention relates to a packaging machine. At this
• the packaging machine is preferably a so-called FFS packaging machine, i. H. a so-called form-fill-seal packaging machine.
• a packaging tray in a web usually a plastic film web, for example by deep drawing, shaped and closed after filling the packaging tray in a sealing station with a Oberwarenbahn, which is also usually a plastic film web.
• the top product web is cohesively, in particular by sealing, with the
• the packaging tray is now according to the invention discharged and / or gassed, wherein the degassing a certain vacuum, d. H. a certain negative pressure, is generated in the packaging tray.
• a certain vacuum d. H. a certain negative pressure
• This gas exchange can be connected to a
• the replacement gas may be, for example, nitrogen, carbon dioxide, argon and / or oxygen or a mixture of these or other gases.
• This storage volume can be, for example, a tank and / or pipes and / or pockets and / or cross-sectional extensions adapted to the desired volume within the tank
• Sealing tools act. Due to the fact that this gas and / or vacuum storage volume is provided in the area of the packaging machine, preferably in the immediate vicinity of the packaging tray to be emptied and / or fumigated, a substantially faster removal or removal is required. Fumigation of the individual packaging troughs possible, as in the prior art. As a result, the number of cycles of the packaging machine can be increased.
• the packaging machine has a frame on which, for example, the forming station, the sealing station and / or the separating station are preferably mounted displaceably.
• Vacuum storage volume provided within the frame of the packaging machine, so that the path between this volume and the sealing station, within which in the Usually the vacuum is drawn or the gas exchange is as short as possible.
• the flow resistance in the line between the volume and the discharge or gassing is low.
• the machine is a cyclically operating machine.
• a cyclically operating machine is a packaging tray or a format consisting of several packaging troughs intermittently along the
• the gas and / or vacuum storage volume is now dimensioned at least in its volume so that it has the gas or vacuum volume required for a cycle. This volume is then available for the degassing or fumigation of the packaging tray very quickly, so that the degassing or fumigating the packaging tray much faster than at
• Packaging machines according to the prior art can be done.
• the packaging machine has a gassing or degassing agent.
• gassing or degassing agent may, for example, be a nozzle with which air is drawn out of the packaging troughs or the replacement gas is blown into the packaging troughs.
• the fumigant and the degassing agent constitute a structural unit.
• Packaging machine on a regulation, with the amount of gas supplied or the degree of vacuum, d. H. the negative pressure in the packaging tray is adjustable. If this negative pressure, for example, not be large enough, air is drawn so long, until this vacuum is reached.
• Another object of the present invention is a method for producing a package in which a web is cyclically transported along a packaging machine and per cycle one or more packaging troughs in the web molded and the packaging tray is then filled with a packaged goods and then a top sheet is sealed to the packaging tray, wherein pulled before sealing in the packaging tray vacuum and / or gas exchange
• the volume required for one cycle is at least substantially built up before the degassing of the packaging cavity is carried out.
• a container with a certain volume can be subjected to a certain negative pressure before the actual degassing of the packaging tray takes place.
• This container is then opened abruptly, for example, by a valve and sucks a predetermined amount of gas until the desired pressure has set in the packaging tray.
• a packaging machine in which the degassing process only by a
• Vacuum pump is done, this inventive approach is much faster.
• the packaging tray can be filled with a replacement gas.
• this container is then again subjected to negative pressure, wherein the connection between the container and the degassing, for example, the degassing is then closed. This connection is opened again at the earliest when the intended negative pressure prevails in the container.
• Vacuum volume is already available when the next packaging tray or the next format to be evacuated or gassed.
• the amount of gas to be filled in a packaging tray or the negative pressure to be achieved in a packaging tray regulated.
• This regulation preferably takes place as a function of the filling quantity of the packaging tray.
• FIG. 1 shows the packaging machine according to the invention.
• FIG. 2 shows a first arrangement of the degassing or fumigant.
• FIG. 3 shows a second arrangement of the degassing or fumigant.
• FIG. 4 shows schematically a further embodiment of the invention
• FIG. 5 shows a further schematic representation of the invention
• FIG. 1 shows the packaging machine 1 according to the invention, which has a thermoforming station 2, a filling station 7 and a sealing station 19.
• Plastic film web 8 the so-called lower web, is withdrawn from a supply roll and, preferably cyclically transported along the packaging machine according to the invention from right to left. At one cycle, the web 8 is transported on by one format length.
• the packaging machine has two transport means, in the present case in each case two endless chains, which are arranged to the right and left of the film web. Both at the beginning and at the end of the packaging machine at least one gear is provided for each chain in each case, around which the respective chain is deflected. At least one of these gears is driven.
• the gears in the input area and / or in the output area can be connected to each other, preferably by a rigid axis.
• Each means of transport usually has a plurality of clamping means which clamp the web 8 in the inlet region and transmit the movement of the means of transport to the lower film 8.
• the clamping connection between the transport and the web 8 is released again.
• the thermoforming station 2 which has an upper tool 3 and a lower tool 4, which has the shape of the packaging tray to be produced, the packaging trays 6 are formed in the film web 8.
• the lower tool 4 is arranged on a lifting table 5, which, as symbolized by the double arrow, is vertically adjustable. Before each film feed the lower tool 4 is lowered and then raised again. In the further course of the packaging machine, the packaging trays are then filled in the filling station 7 with the packaged goods 16.
• a top film 14 is firmly bonded, preferably by sealing on the web 8. Also in the sealing station, the upper tool and / or the lower tool are lowered or raised before and after each film transport. Before sealing the upper film 14 to the lower film 8, a certain negative pressure is generated in the filled packaging tray and / or it takes place
• the respective packaging tray is within the sealing station, preferably immediately before the sealing tools 1 1, 12 are pressed against each other.
• the upper film 14 may be guided in transport or be transported by transport chains, which then transport only from the sealing station and possibly downstream extend. Otherwise, the statements that have been made to the means of transport of the lower film apply. In the further course of the
• the finished packages are separated, which takes place in the present case with the cross cutter 25 and the slitter 23.
• the cross cutter 25 can also be raised or lowered in the present case by means of a lifting device 9.
• FIG. 2 shows the sealing station of the packaging machine according to the invention, in which an upper film web is sealed onto the filled packaging troughs 6.
• the not yet closed with a lid film packaging trays are provided with the reference numeral 6, the already closed packaging trays with the reference numeral 6 ' .
• this packaging machine works in cycles, with a format 15 at each cycle, which in the present case consists of three rows and three columns of packaging trays, by a certain amount, in particular by the length of the format 15 is transported further. The transport direction is symbolized by an arrow.
• air is sucked out of the packaging trays according to the invention. This is done in the present case with a degassing 17, the transversely to the
• FIG. 3 essentially shows the embodiment according to FIG. 2, wherein in the present case the degassing agent 17 or the fumigant 13 is parallel to the frame 10 of the packaging machine or parallel to the direction of movement of the packaging machine
• Film web 8 arranged and are each provided as separate units.
• degassing 17 air from the
• Packaging troughs are withdrawn and thereafter and / or simultaneously supplied to the packaging troughs a replacement gas by means of the gassing nozzle 13.
• a gas storage tank 18 and / or a vacuum storage volume 20 is provided. These volumes are connected by means of a short path to the discharge or gassing nozzle 13, 17.
• a shut-off device for example a valve, is preferably provided in each case.
• the vacuum storage volume 20 is connected in the present case with a vacuum means here a vacuum pump 21, which is operated so that the required volume in relation to the required negative pressure or the required amount is approximately available before the actual degassing of the respective packaging tray or of the format takes place at packaging troughs.
• a vacuum means here a vacuum pump 21 which is operated so that the required volume in relation to the required negative pressure or the required amount is approximately available before the actual degassing of the respective packaging tray or of the format takes place at packaging troughs.
• the gas storage volume 20 preferably has exactly the or a larger volume, which is required for the gas exchange of the respective format of packaging trays at a clock.
• this storage volume 18 is filled here, for example from a gas source here a gas storage tank 22 before the actual fumigation of the packaging trays takes place.
• FIG. 5 essentially shows the embodiment of FIG. 4, wherein in the present case separate gassing or degassing nozzles 13, 17 are provided which are each connected separately to the respective storage volume 18, 20. LIST OF REFERENCE NUMBERS

Landscapes

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

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=45581814

Family Applications (1)

Country Status (8)

Families Citing this family (12)

Family Cites Families (15)

• 2012
  • 2012-01-27 DK DK12703443.7T patent/DK2668103T3/en active
  • 2012-01-27 US US13/981,349 patent/US20140013704A1/en not_active Abandoned
  • 2012-01-27 EP EP12703443.7A patent/EP2668103B1/fr active Active
  • 2012-01-27 PL PL12703443T patent/PL2668103T3/pl unknown
  • 2012-01-27 WO PCT/EP2012/000377 patent/WO2012100956A1/fr not_active Ceased
  • 2012-01-27 RU RU2013139452/13A patent/RU2571347C2/ru active
  • 2012-01-27 CN CN201280006904.4A patent/CN103492270B/zh active Active
  • 2012-01-27 ES ES12703443.7T patent/ES2541864T3/es active Active

Non-Patent Citations (1)

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