EP4582349A2 - Machine d'emballage sans plateau - Google Patents

Machine d'emballage sans plateau Download PDF

Info

Publication number
EP4582349A2
EP4582349A2 EP25178517.6A EP25178517A EP4582349A2 EP 4582349 A2 EP4582349 A2 EP 4582349A2 EP 25178517 A EP25178517 A EP 25178517A EP 4582349 A2 EP4582349 A2 EP 4582349A2
Authority
EP
European Patent Office
Prior art keywords
material web
supply roll
packaging machine
packaging
transport means
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
EP25178517.6A
Other languages
German (de)
English (en)
Inventor
Gerd HÜBNER
Frank SABATO
Jochen REHN
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 EP4582349A2 publication Critical patent/EP4582349A2/fr
Pending legal-status Critical Current

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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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • 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
    • B65B41/18—Registering sheets, blanks, 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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
    • B65B57/04—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages and operating to control, or to stop, the feed of such material, containers, or packages

Definitions

  • the present invention relates to a packaging machine that unwinds a bottom material web from a supply roll and transports it intermittently along the packaging machine.
  • the bottom material web is optionally formed into packaging cavities, which are then covered/filled with a packaged product.
  • a top material web is sealed to the bottom material web in a sealing station.
  • the bottom and top material webs are each unwound from a supply roll, and at least one supply roll is motor-driven.
  • the present invention relates to a method for producing packaging.
  • Such packaging machines are known from the prior art.
  • a base material web is unwound from a supply roll and intermittently transported along the packaging machine.
  • a packaging trough is first formed into the base material web, if necessary, which is then filled with a packaged product, in particular a food product, or the unformed base material web is covered with a packaged product.
  • the packaging trough is then closed in a sealing station with a top material web, which is sealed to the base material web.
  • the top material web is also unwound from a supply roll.
  • a dancer is provided between the supply roll and the sealing station, which must be adapted to the advance that the base material web makes during advancement.
  • the WO 2016087169 A1 teaches an improved design with a rotary dancer, wherein the upper material web is unwound from a supply roll and a dancer is provided downstream of the supply roll, which preferably has two rollers which are provided on a rod which rotates about a rotational axis driven by a rotary drive and thereby stores a certain length of material web and/or creates a desired tension in the material web.
  • This state-of-the-art technology has the disadvantage that the respective material web is significantly stretched, causing it to become damaged and/or warped. Furthermore, the sealed connections between the upper material web and the lower material web are often damaged during further transport, especially at the beginning of the transport process.
  • the problem is solved with a packaging machine which unwinds a bottom material web from a supply roll and transports it intermittently along the packaging machine by means of a driven transport means and in the process preferably forms packaging troughs in the bottom material web in a forming station, which is then covered/filled with a packaged product, wherein a top material web is subsequently sealed to the bottom material web in a sealing station, wherein the bottom and top material webs are each unrolled from a supply roll and at least one supply roll is driven by a motor, wherein no dancer is provided downstream of at least one supply roll.
  • the present invention relates to a packaging machine in which a base material web, in particular a plastic material web, paper and/or cardboard material web and/or a combination of paper and/or cardboard material web and plastic material web, which preferably has a width between 200 mm and 1 m and more is unrolled from a supply roll and transported intermittently/cyclically along the packaging machine, with each cycle by a certain amount of advance.
  • a transport means is provided, for example two chains with a plurality of grippers, which reversibly grasp the lower material web at both edges and transport it along the packaging machine.
  • this lower material web is then first heated and, if necessary, packaging troughs are formed into the lower material web using a thermoforming tool.
  • each packaging trough is filled with a packaging product, in particular a foodstuff such as sausage, ham or cheese, or the non-deep-drawn material web is covered with a packaging product and in a next step is closed with an upper material web in a sealing station, whereby the upper material web is usually sealed to the lower material web.
  • a packaging product in particular a foodstuff such as sausage, ham or cheese
  • the non-deep-drawn material web is covered with a packaging product and in a next step is closed with an upper material web in a sealing station, whereby the upper material web is usually sealed to the lower material web.
  • Experts will understand that the packaged goods can also be filled/placed into unformed material webs.
  • the finished packaging is then separated.
  • the outer material web is also unrolled from a supply roll.
  • the number of packages produced simultaneously and their length or width determine the length of the feed in one cycle, with up to 3 meters being quite common.
  • At least one, preferably both, supply roll(s) are driven by a motor whose parameters, in particular speed and/or torque, can be adjusted based on the parameters of the respective supply roll.
  • the core diameter of the roll, the film width, the film thickness, the film length, the original and/or current weight of the supply roll, the original and/or current diameter of the supply roll, and/or the specific film weight are taken into account.
  • the currently required torque or rotational speed is calculated, and the motor is controlled/regulated accordingly, in particular to provide the film length required for one cycle/feed.
  • the motor drive is preferably a torque motor capable of providing such a high torque that the desired speed of the supply roll is always achieved.
  • a film brake can be used, for example, for the alignment of print marks, as used, for example, in the EP1339609A1
  • a roller brake such as that used in the WO2004077913A2 disclosed, can be dispensed with, since the motor itself also generates the braking effect, eliminating the usual and unwanted abrasion caused by a conventional roller brake.
  • the packaging machine according to the invention can process very thin films.
  • the packaging machine preferably has a means for detecting the speed of the respective material web, in particular the base material web, preferably the speed profile during a feed/advance movement, and/or calculating the speed profile.
  • the speed or speed profile can be stored as data and/or a data set in a control system of the packaging machine. The speed or speed profile is preferably taken into account when controlling/regulating the drive motor of the respective supply roll.
  • the motor is preferably a servo motor or a torque motor.
  • the motor preferably has a means, for example an incremental encoder, with which the rotational position of the motor's output shaft can be detected.
  • the motor is preferably a direct motor, i.e., a motor that is rotationally fixed or torsionally rigidly connected to the shaft on which the respective supply roll is mounted.
  • a rigid connection for example, a toothed belt, is provided between the motor and the shaft on which the supply roll is mounted.
  • a torque motor is a servo motor optimized for high torque.
  • Torque motors are typically built as brushless DC motors. However, switched reluctance motors are sometimes also referred to as torque motors.
  • the shaft on which the supply roll is provided in a rotationally fixed manner is mounted at both ends, for example in order to minimize deformation/shaft deflection or its disruptive consequences and/or to form it symmetrically.
  • the synchronization of the speed of the material web and the transport means takes into account an elongation/shortening of the transport means.
  • This elongation/shortening of the transport means can be measured, for example, by strain gauges or by means of a contactless, in particular optical or electromagnetic, sensor. The signal from this sensor is used to control the drive of the transport device and/or the supply roll.
  • the speed of the upper and/or lower material web is selected to be lower than the speed of the transport means of the lower material web, at the latest at the end of a feed, by means of a film brake that grips and decelerates the material web, thereby achieving the desired target stretch.
  • Stretching the material web using a film brake is preferred over stretching by driving the supply roll when the force required to generate the required target stretch is high, for example, when the material web is rather stiff and/or thick, requiring a drive with a disproportionately high torque.
  • the number of deflection rollers provided downstream of the supply roll is preferably a maximum of two, particularly preferably a maximum of one and most preferably none at all.
  • the drives of the lower material web and the upper material web are functionally connected to one another in such a way that they can be controlled to drive the respective material web synchronously or asynchronously.
  • the drive of the upper material web roll receives information about the rotational movement and/or the control of the drive of the lower material web and/or vice versa. This information can include the rotational path, the rotational speed, and/or the acceleration, particularly during a cycle.
  • a further inventive or preferred subject of the present invention is therefore a packaging machine in which the material web is guided parallel to the transport plane of the transport means, in particular horizontally, without deflection after unwinding from the supply roll.
  • the supply roll is provided so that it is height-adjustable on the packaging machine and during operation of the packaging machine. This allows the material web to be guided parallel to the transport plane of the transport means, in particular horizontally, without deflection after unwinding from the supply roll, despite a reduction in the diameter of the supply roll.
  • the transport means is driven between the sealing station and/or the insertion station and the sealing station and/or in the region of the sealing station and/or downstream of the sealing station.
  • Such a drive in the area of the sealing station reduces the elongation/shortening of the transport means, in particular the chain, which is relevant for the synchronization of the speed of the transport means and the speed of the material web, thus minimizing inaccuracies.
  • the packaging machine has at least one sensor that measures the elongation and/or the web tension and/or the web force of the respective material web, in particular the upper material web.
  • the signal from this sensor is preferably used to control the drive of the transport means of the lower material web and/or the supply roll of the upper and/or lower material web. For example, as soon as the elongation force in the respective material web exceeds a certain value and/or the increase in the elongation force is too great, the rotation speed for unwinding the supply roll of the upper and/or lower material web is increased and/or the speed of the transport means with which the lower material web is transported along the packaging machine is reduced, whereby the Web force/web tension in the upper and/or lower material web is reduced.
  • the rotation of the supply roll of the upper material web can be changed, in particular reduced, and/or the speed of the transport means of the lower material web can be increased in order to achieve more stretch in the upper material web.
  • the sensor signal can be used to detect fluctuations in the web tension, which can arise, for example, from an out-of-round supply roll and/or deflection roll and/or from winding errors in the supply roll, and to compensate for them if necessary.
  • the senor is a means that detects the torque of the drive motor that drives the supply roll of the respective material web, and/or a measuring roller that measures, for example, an average value of the web tension of the respective material web and/or the web force at various measuring points, preferably with spatial resolution, and/or the sensor is a measuring bearing on at least one deflection roller(s).
  • the sensor is preferably a non-contact sensor that is based, for example, on deflecting the material web with an air stream and determining the local path deviations, for example with an optical sensor, and/or according to the principle of dynamic pressure measurement.
  • the length of the upper material web between the supply roll and the rear end of the sealing seam of the previous pre-roll, relative to the transport direction of the material webs, is preferably short and/or corresponds at least to the length of a packaging tray or a pre-roll, but particularly preferably to a multiple of the length of a packaging tray or a pre-roll. This length is also preferably adjustable.
  • the object is also achieved with a method for producing packaging with a packaging machine which unwinds a base material web from a supply roll and transports it intermittently by means of a transport means along the packaging machine and in the process forms packaging troughs in the base material web in a forming station, wherein the base material web is then covered/filled with a packaged item, wherein an upper material web is subsequently sealed to the base material web in a sealing station, wherein the base and upper material webs are each unrolled from a supply roll and the supply roll is unrolled by means of a motor and the drive of the supply roll is at least temporarily synchronized during a feed such that the transport means and the material web move at least substantially at the same speed.
  • the unwinding of the upper and/or lower material webs is ahead of the speed of the transport means of the lower material web. This can at least reduce the increased force in the respective material web caused by the mass inertia of the respective material web.
  • the unwinding of the upper and/or lower material web follows the speed of the transport means of the lower material web. This allows stretching to be created in the respective material web, in particular the upper material web, for example, to correctly position the upper material web on the lower material web before sealing.
  • the gears in the input area and/or in the output area can be connected to one another, preferably by a rigid shaft.
  • Each transport means has a plurality of clamping means, which clamp the bottom material web 8 in its edge area in the inlet area 19 and transmit the movement of the transport means to the bottom material web 8.
  • a heating means 13 can be provided, which heats the material web 8, especially when it is stationary.
  • the packaging trays 6 can be formed into the heated material 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP25178517.6A 2019-05-10 2020-05-08 Machine d'emballage sans plateau Pending EP4582349A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019206783 2019-05-10
PCT/EP2020/062899 WO2020229355A1 (fr) 2019-05-10 2020-05-08 Machine d'emballage sans danseur
EP20727931.6A EP3966111B1 (fr) 2019-05-10 2020-05-08 Machine d'emballage sans danseurs

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP20727931.6A Division EP3966111B1 (fr) 2019-05-10 2020-05-08 Machine d'emballage sans danseurs
EP20727931.6A Division-Into EP3966111B1 (fr) 2019-05-10 2020-05-08 Machine d'emballage sans danseurs

Publications (1)

Publication Number Publication Date
EP4582349A2 true EP4582349A2 (fr) 2025-07-09

Family

ID=70847321

Family Applications (2)

Application Number Title Priority Date Filing Date
EP25178517.6A Pending EP4582349A2 (fr) 2019-05-10 2020-05-08 Machine d'emballage sans plateau
EP20727931.6A Active EP3966111B1 (fr) 2019-05-10 2020-05-08 Machine d'emballage sans danseurs

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20727931.6A Active EP3966111B1 (fr) 2019-05-10 2020-05-08 Machine d'emballage sans danseurs

Country Status (3)

Country Link
EP (2) EP4582349A2 (fr)
ES (1) ES3042258T3 (fr)
WO (1) WO2020229355A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021120371A1 (de) * 2021-08-05 2023-02-09 Multivac Sepp Haggenmüller Se & Co. Kg Verpackungsmaschine mit folientransporteinrichtung sowie verfahren
DE102024113820A1 (de) 2024-05-16 2025-11-20 Multivac Sepp Haggenmüller Se & Co. Kg Folienschlupfüberwachung und Verpackungsmaschine mit Folienschlupfüberwachung
DE102024117535A1 (de) * 2024-06-21 2025-12-24 Multivac Sepp Haggenmüller Se & Co. Kg Positionsgenauer Materialvorschub in Verpackungsmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1339609A1 (fr) 2000-11-24 2003-09-03 CFS Germany GmbH Procede et dispositif pour positionner des bandes de film d'un dispositif d'emballage
WO2004077913A2 (fr) 2003-03-06 2004-09-16 Cfs Germany Gmbh Dispositif de deroulement de feuille pourvu d'un frein a disque
WO2004096645A1 (fr) 2003-04-29 2004-11-11 Cfs Germany Gmbh Dispositif d'etirage de film de recouvrement
WO2012116823A1 (fr) 2011-03-03 2012-09-07 Gea Cfs Germany Gmbh Machine d'emballage destinée à fabriquer des emballages à partir de bandes de produit imprimées
WO2016087169A1 (fr) 2014-12-05 2016-06-09 Gea Food Solutions Germany Gmbh Tendeur rotatif pour machine d'emballage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979877A (en) * 1974-08-01 1976-09-14 Multivac Sepp Haggenmueller Kg Vacuum packaging machine with web registration means
IT1240311B (it) * 1989-12-29 1993-12-07 Cavanna Spa Procedimento per controllare l'avanzamento del film di avvolgimento in macchine incartatrici e relativa macchina incartatrice
FR2669888B1 (fr) * 1990-12-03 1993-10-22 Erca Sa Procede et dispositif de positionnement avant scellage d'une bande de couvercles sur un ensemble de recipients.
IT1285733B1 (it) * 1996-06-06 1998-06-18 Ima Spa Metodo e dispositivo per l'applicazione, mediante termosaldatura, di un nastro di copertura di materiale termoplastico ad un nastro
EP2860119B1 (fr) * 2013-10-09 2016-08-31 MULTIVAC Sepp Haggenmüller SE & Co. KG Machine d'emballage par emboutissage et procédé
WO2016156336A1 (fr) * 2015-03-31 2016-10-06 Gea Food Solutions Germany Gmbh Dispositif et procédé de dosage de glace sèche dans une barquette d'emballage
TR201907236T4 (tr) * 2015-05-13 2019-06-21 Gea Food Solutions Germany Gmbh Bir kaldırma cihazına sahip paketleme makinesi.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1339609A1 (fr) 2000-11-24 2003-09-03 CFS Germany GmbH Procede et dispositif pour positionner des bandes de film d'un dispositif d'emballage
WO2004077913A2 (fr) 2003-03-06 2004-09-16 Cfs Germany Gmbh Dispositif de deroulement de feuille pourvu d'un frein a disque
WO2004096645A1 (fr) 2003-04-29 2004-11-11 Cfs Germany Gmbh Dispositif d'etirage de film de recouvrement
WO2012116823A1 (fr) 2011-03-03 2012-09-07 Gea Cfs Germany Gmbh Machine d'emballage destinée à fabriquer des emballages à partir de bandes de produit imprimées
WO2016087169A1 (fr) 2014-12-05 2016-06-09 Gea Food Solutions Germany Gmbh Tendeur rotatif pour machine d'emballage

Also Published As

Publication number Publication date
ES3042258T3 (en) 2025-11-19
EP3966111A1 (fr) 2022-03-16
WO2020229355A1 (fr) 2020-11-19
EP3966111B1 (fr) 2025-07-02

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