EP2766262B1 - Tiefziehverpackungsmaschine - Google Patents

Tiefziehverpackungsmaschine Download PDF

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Publication number
EP2766262B1
EP2766262B1 EP12778239.9A EP12778239A EP2766262B1 EP 2766262 B1 EP2766262 B1 EP 2766262B1 EP 12778239 A EP12778239 A EP 12778239A EP 2766262 B1 EP2766262 B1 EP 2766262B1
Authority
EP
European Patent Office
Prior art keywords
film
packaging machine
film web
web
thermo
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.)
Active
Application number
EP12778239.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2766262A1 (de
Inventor
Elmar Ehrmann
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller GmbH and Co KG
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 Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Publication of EP2766262A1 publication Critical patent/EP2766262A1/de
Application granted granted Critical
Publication of EP2766262B1 publication Critical patent/EP2766262B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/022—Holders for feeding or positioning sheets or webs
    • 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
    • B65B41/14—Feeding webs from rolls by grippers
    • 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
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/038—Controlling transverse register of web by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/442—Moving, forwarding, guiding material by acting on edge of handled material
    • B65H2301/4422—Moving, forwarding, guiding material by acting on edge of handled material with guide member moving in the material direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/449—Features of movement or transforming movement of handled material
    • B65H2301/4493—Features of movement or transforming movement of handled material intermittent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/81—Packaging machines

Definitions

  • the invention relates to a thermoforming packaging machine with a film feeding device for detecting and transporting one side of a film web having the features of claim 1.
  • thermoforming packaging machines are known in which a film web by means of two staple chains, which are arranged on both sides of the film web, detected and intermittently transported through the thermoforming packaging machine.
  • the machine width is determined by the width of the film web to be transported or vice versa.
  • Disadvantage of thermoforming packaging machines with two clamp chains arranged on both sides is that only a single film web width corresponding to the distance of the staple chains can be used to each other, as a conversion of the machine would mean a huge effort to another film web width and is technically difficult to implement.
  • Object of the present invention is to provide a way to be able to transport and edit film webs with different film web widths on a thermoforming packaging machine.
  • thermoforming packaging machine with the features of claim 1.
  • Advantageous further developments are specified in the subclaims.
  • thermoforming packaging machine has a machine frame with a first and a second side aligned in a direction of transport for a film web, and a film feed device for detecting one side of the film web and for transporting the film web, the film feed device being provided on only one side of the machine frame.
  • a one-sided film feed allows the use of different width film webs with a maximum width, which is determined by the distance between the two sides of the machine frame.
  • film material can be saved since, on the one hand, no film edge has to be provided for a further film feed device and, on the other hand, the Film web width can be matched exactly to the required space for the desired package size.
  • the cost of film consumption per package is an important cost factor for manufacturing costs.
  • thermoforming packaging machine According to the invention, a one-sided film feeding device is sufficient, since to date the person skilled in the art has always assumed a two-sided stretched film web.
  • the invention thus overcomes the prejudice that for a secure, warp-free transport of a film web in a thermoforming packaging machine necessarily a symmetrical, double-sided detection of the film web is required.
  • a device for web edge control for a position control of the film web is provided relative to the film feed device to supply one side of the film web of the film feeding device for detecting exactly, so that a safe transport can be ensured.
  • the device for web edge control preferably has a roller which can be pivoted relative to the film feed device and which is driven, for example, by means of a servomotor.
  • a roller which can be pivoted relative to the film feed device and which is driven, for example, by means of a servomotor.
  • the unwound from a feed roll of film web passes over this role before it is brought to the film feeding device.
  • By changing the position of the roller a lateral movement of the film web relative to the film feed device or the machine frame can be produced and the film web can be guided accordingly or one side of the film web can be positioned.
  • at least two rollers are connected together to a frame, which in turn is designed to be pivotable relative to the film feeding device.
  • a thermoforming packaging machine comprises one or more film counterparts for the film web, which are provided before and / or after a work station, for example a forming or sealing station.
  • a work station for example a forming or sealing station.
  • it can lead to adhesion by negative pressure between formed in the film web troughs and a tool lower part and thereby can Film web tend to be pulled from the lower tool part at least partially down.
  • the film counter bearings hold the film web in its transport plane and support the release of the troughs from the lower tool part and prevent a pulling down of the film web by the lower tool part, especially in the area which is not held by the film feed device.
  • a clamping device which clamps the film web onto the film counter bearings, above all in areas near the workstation, in order to prevent the film web from being pulled down by the tool lower part when the workstation is opened.
  • an additional transport device for supporting the one-sided film transport is provided by the film feeding device.
  • the background is that at the sealing station, a lid film is sealed onto the film web with the shaped hollows.
  • the cover film is drawn off from a material store by the film transport through the film feeding device attracts the sealed to the film web lid film with the transport direction. This increases the tensile forces on the film web, and in the region of the film webs lying opposite the film feed device increases the risk of wrinkling in the film web, which can be reduced by the additional transport device.
  • the additional transport device is provided for transporting a cover film in front of the sealing station, so that no further tensile forces act on the film web and wrinkling of the film web and the cover film can be prevented.
  • the additional transport device preferably has a staple chain for synchronously transporting the cover film with the film web in order to be able to transport different widths of cover films.
  • a staple chain feed of the cover film can also be preceded by a device for web edge control in order to be able to feed the position of one side of the cover film exactly to the staple chain of the additional transport device.
  • a tray slide can be arranged after the sealing station in order to prevent wrinkling due to tensile forces occurring through the cover film.
  • the package wells from the bottom of the film web can be advanced by means of such a mold slide synchronously with the film transport through the film feeding device.
  • the tray slide here has sliding elements which extend transversely to the conveying direction, over all adjacent tracks of packages, and attack the packing pits.
  • thermoforming packaging machine In a preferred embodiment of a thermoforming packaging machine according to the invention, the side of the machine frame lying opposite the film feed device is opened in the region of a workstation in order to be able to move tools of the workstation horizontally transversely to the transport direction. This allows a removal of tools for maintenance or cleaning purposes, without having to cut or cut the film web. There are no conversion measures necessary because only side panels must be removed or opened.
  • the workstations may be a forming, sealing or cutting station.
  • the tools to be considered are the upper part of the mold, the lower part of the mold, the upper part of the sealing tool, the lower part of the sealing tool, etc.
  • the corresponding tools are preferably also to be used, and thus a simple change of these tools is a particular advantage.
  • the film feed device opposite side of the machine frame can be interrupted or partially opened only for the required space.
  • the film web intended for processing in a thermoforming packaging machine described above is at least 200 ⁇ m thick, preferably at least 250 ⁇ m.
  • the film feeding device is designed as a staple chain.
  • the film feeding device could detect the film web, for example by needling and fix it laterally.
  • FIG. 1 1 shows a forming station 2, a sealing station 3, a cross-cutting device 4 and a longitudinal cutting device 5, which are arranged in this working order on a machine frame 6 in a working direction R.
  • the thermoforming packaging machine 1 shown in FIG. On the input side is located on the machine frame 6, a feed roller 7, from which a film web 8 is withdrawn. In the region of the sealing station 3, a material reservoir 9 is provided, from which a cover film 10 is drawn off. In this case, aificattranspört sensible 110 is provided for the cover sheet 10 between the material storage 9 and the sealing station 3.
  • a discharge device 13 is provided in the form of a conveyor belt, are transported with the finished, isolated packaging 17.
  • thermoforming packaging machine 1 has a film feeding device which grips the film web 8 and transports it further per working cycle in the working direction R.
  • the film feeding device is characterized by a arranged only on one side of the film web 8 transport chain 11 (see FIG. 2 and 3 ).
  • a device 12 for web edge control for the film web 8 is arranged between the feed roller 7 and the staple chain 11.
  • the forming station 2 is formed as a thermoforming station in which troughs 14 are formed into the film web 8 after being heated by a heater, not shown, by deep drawing.
  • the forming station 2 may be designed such that in the direction transverse to the working direction R a plurality of wells are formed side by side.
  • an insertion path 15 is provided, in which the molds 16 formed in the film web 8 are filled with product 16.
  • the sealing station 3 has a sealable chamber in which the atmosphere in the wells 14 can be optionally replaced prior to sealing, for example by gas purging with a replacement gas or with a gas mixture.
  • the cross-cutting device 4 is designed as a punch which cuts through the film web 8 and the cover film 10 in a direction transverse to the working direction R between adjacent depressions 14. In this case, the cross-cutting device 4 operates such that the film web 8 is not separated over the entire width, but at least in an edge region is not severed. This allows a controlled further transport of the film web 8 with the lid film 10 by means of the film feed device.
  • the longitudinal cutting device 5 is designed as a knife arrangement with which the film web 8 and the cover film 10 are severed between adjacent depressions 14 and at the lateral edge of the film 8, so that individual packages 17 are present behind the longitudinal cutting device 5.
  • thermoforming packaging machine 1 also has a controller 18. It has the task to control the processes running in the thermoforming packaging machine 1 processes and monitor.
  • a display device 19 with operating elements 20 serves to visualize or influence the process sequences in the thermoforming packaging machine 1 for or by an operator.
  • thermoforming packaging machine 1 The general operation of the thermoforming packaging machine 1 will be briefly described below.
  • the film web 8 is withdrawn from the feed roller 7 and fed along a device 12 for web edge control of the unilaterally arranged staple chain 11.
  • the device 12 ensures that one side of the film web 8 of the staple chain 11 is fed so that the staple chain 11 securely detects the film web 8 and transported intermittently safely in the transport direction R through the thermoforming packaging machine 1.
  • the film web 8 is transported to the forming station 2 and in this are formed by deep drawing troughs 14 in the film web 8.
  • the troughs 14 are transported along with the surrounding area of the film web 8 in a main working cycle to the insertion path 15, in which they are filled with product 16.
  • the filled wells 14 are transported together with the surrounding area of the film web 8 in the main working cycle by the one-sided film feeding device in the sealing station 3.
  • the cover film 10 is transported on to the film web 8 with a feed operation of the film web 8 after a sealing operation.
  • the cover sheet 10 is supported by the material storage 9 supported by an additional transport device 110
  • sealing the lid film 10 on the wells 14 formed sealed packaging 17, which are separated in the following cuts 4 and 5 and transported out by means of the discharge device 13 from the thermoforming packaging machine 1 instead of the transverse 4 and longitudinal cutting 5 can also be a complete cutting tool that separates packages 17 with a single cutting process can be provided.
  • FIG. 2 is a partial view of the front portion of a thermoforming packaging machine 1 from the feed roller 7 to the insertion path 15 is shown as a schematic plan view.
  • the thermoforming packaging machine 1 has as a film feeding device only a single staple chain 11, which is attached by means of a chain guide 21 on a first side 22 of the machine frame 6.
  • the opposite, second side 22 'of the machine frame 6 is arranged at a distance D parallel to the first side 22 and is partially recessed in the region of the forming station 2.
  • the thermoforming packaging machine 1 allows the processing of different film web widths D1 or D2, since the film webs 8 or 8 'always only on the first side 22 of the machine frame 6 are detected and transported by the staple chain 11.
  • the device 12 in the form of a roller (later also referred to 12) for web edge control is pivotally mounted on the machine frame 6.
  • a sensor 23 detects the position of one side of the film web 8 and forwards the information about this to the controller 18.
  • the controller 18 controls by means of a servomotor 24 (see FIG. 3 )
  • the position of the roller 12 such that on a pivoting or a change in the position of the roller 12, the side 25 of the film web 8 to the staple chain 11 can be adjusted to ensure a secure detection of the film web 8 through the staple chain 11.
  • strip-shaped film counter bearings 26 and 27 are provided directly below the film web, which are designed to be vertically movable. In its upper position directly below the film web 8, the film counter bearings 26, 27 hold the film web 8 after the molding process in this upper position, so that during movement of a mold lower part 29 when opening the forming station 2, the film web 8 not by adhesion of the mold cavities 14 on the lower mold part 29th can be pulled down and the film web 8 can be easier or faster from the mold lower part 29 can solve.
  • strip-shaped film supports 28 are arranged as support of the film web 8 between or next to the tracks S of packing troughs 14 directly below the film web 8.
  • FIG. 3 shows in a schematic side view of the lower mold part 29 and a mold upper part 30 of the forming station 2.
  • the film counter bearings 26, 27 are vertically movable and remain in their upper position until the mold base 28 has performed at least part of its lifting movement down.
  • the film counter bearings 26, 27 then follow this lifting movement, in order to release a feed movement of the shaped depressions 14 or the film web 8 as quickly as possible.
  • clamping devices 34, 35 by means of a membrane clamping force against the foil counter bearings 26, 27 apply or the film counter bearings 26, 27 generate a clamping force against statically mounted clamping devices 34, 35, which may be located directly on the top of the film web 8.
  • FIG. 3 It is shown that the opposite of the staple chain 11 located second side 22 'of the machine frame 6 has a recess 31 to allow movement of the molds 29, 30 in the direction (out of the plane) transversely to the transport direction R to a tool change or a Maintenance or cleaning of the tools 29, 30 easier.
  • a first clip 33 of the clip chain 11 In the region of a film inlet 32, a first clip 33 of the clip chain 11 is not yet closed to the extent that it clamps the film web 8. With the advancing movement of the staple chain 11 in the transport direction R, the clip 32 closes and detects the film web 8.
  • the web edge control with the sensor 23 and the servo motor 24 ensures that the position change of the roller 12, preferably by a pivoting movement about a vertical axis, Accordingly, the position of the side 25 of the film web 8 suitable for detecting by the bracket 33 controls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP12778239.9A 2011-10-12 2012-10-11 Tiefziehverpackungsmaschine Active EP2766262B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011115881.6A DE102011115881B4 (de) 2011-10-12 2011-10-12 Tiefziehverpackungsmaschine mit einseitiger Folienvorschubeinrichtung
PCT/EP2012/004271 WO2013053484A1 (de) 2011-10-12 2012-10-11 Tiefziehverpackungsmaschine

Publications (2)

Publication Number Publication Date
EP2766262A1 EP2766262A1 (de) 2014-08-20
EP2766262B1 true EP2766262B1 (de) 2015-01-07

Family

ID=47076147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12778239.9A Active EP2766262B1 (de) 2011-10-12 2012-10-11 Tiefziehverpackungsmaschine

Country Status (7)

Country Link
US (1) US9321233B2 (enrdf_load_stackoverflow)
EP (1) EP2766262B1 (enrdf_load_stackoverflow)
CN (1) CN103930349B (enrdf_load_stackoverflow)
DE (1) DE102011115881B4 (enrdf_load_stackoverflow)
ES (1) ES2529643T3 (enrdf_load_stackoverflow)
IN (1) IN2014CN01888A (enrdf_load_stackoverflow)
WO (1) WO2013053484A1 (enrdf_load_stackoverflow)

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US7293683B2 (en) * 2003-06-13 2007-11-13 Multivac Sepp Haggenmuller Gmbh & Co. Kg Packaging machine
DE102006005405A1 (de) 2006-02-03 2007-08-09 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine, insbesondere Rollen- oder Tiefziehmaschine, Schalenversiegelungsmaschine oder dergleichen
CN101613000A (zh) 2008-06-26 2009-12-30 美达新科技(深圳)有限公司 一种新型的包装机薄膜输送方法
DE102008046902A1 (de) * 2008-09-11 2010-04-01 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine mit dynamischer Kettenspannung
DE102008051026A1 (de) 2008-10-13 2010-04-15 Cfs Germany Gmbh Transportmittel und Verpackungsmaschine für Folienbreitenanpassung
EP3716673B1 (en) * 2008-10-29 2022-09-14 Marvell Asia Pte, Ltd. Method and apparatus for performing transmit beamforming sector sweep in a multiantenna communication device
DE102010053444A1 (de) * 2010-12-06 2012-06-06 Cfs Germany Gmbh,Niederlassung Csf Wallau Verpackungsmaschine mit einer Randstreifenausbringung
DE102011100784A1 (de) * 2011-05-06 2012-11-08 Multivac Sepp Haggenmüller Gmbh & Co. Kg Schneidstation mit Komplettschnittwerkzeug
JP5416797B2 (ja) 2012-03-07 2014-02-12 パナソニック株式会社 Ｓｍｃ及びその製造方法
EP2740677A1 (de) * 2012-12-10 2014-06-11 Multivac Sepp Haggenmüller GmbH & Co. KG Transporteinrichtung für Tiefziehverpackungsmaschine

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WO2013053484A1 (de) 2013-04-18
CN103930349A (zh) 2014-07-16
DE102011115881A1 (de) 2013-04-18
US20140249007A1 (en) 2014-09-04
DE102011115881B4 (de) 2014-11-20
CN103930349B (zh) 2015-04-22
ES2529643T3 (es) 2015-02-24
US9321233B2 (en) 2016-04-26
IN2014CN01888A (enrdf_load_stackoverflow) 2015-05-29
EP2766262A1 (de) 2014-08-20

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