US20060255201A1 - Method for unrolling web material in a packaging machine and packaging machine - Google Patents

Method for unrolling web material in a packaging machine and packaging machine Download PDF

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Publication number
US20060255201A1
US20060255201A1 US11/404,318 US40431806A US2006255201A1 US 20060255201 A1 US20060255201 A1 US 20060255201A1 US 40431806 A US40431806 A US 40431806A US 2006255201 A1 US2006255201 A1 US 2006255201A1
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United States
Prior art keywords
web material
working station
processed
storage device
packaging machine
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.)
Abandoned
Application number
US11/404,318
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English (en)
Inventor
Johann Natterer
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
Assigned to MULTIVAC SEPP HAGGENMULLER GMBH & CO. KG reassignment MULTIVAC SEPP HAGGENMULLER GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NATTERER, JOHANN
Publication of US20060255201A1 publication Critical patent/US20060255201A1/en
Abandoned 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
    • 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
    • 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
    • B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
    • B65B7/164—Securing by heat-sealing

Definitions

  • the present invention relates to a method for unrolling web material in a packaging machine operating intermittently in a cycle and to a packaging machine.
  • Packaging machines are known which are constructed as schematically shown in FIG. 5 and in which web material 6 such as a plastic film or a thin metal foil is unrolled from a supply roll 1 and is then supplied to a working station 3 .
  • An example for working stations are sealing stations in which the web material 6 is thermally sealed with other components or cutting stations in which parts of the web material 6 are cut out by means of for example a punch are known.
  • working stations 3 are formed as combined sealing and cutting stations in which the web material 6 is sealed onto containers 8 and thereafter the sealed regions are cut free from the web material.
  • a grid-shaped frame 6 ′ of the web material which has low stability and has to be removed remains.
  • the frame-shaped residual web material 6 ′ is usually removed to a receiving roll 5 onto which it is wound for the purpose of disposal or supply to recycling.
  • containers 8 are supplied to the sealing and cutting station 3 via a supply conveyor belt 9 and are there sealed with the upper film 6 and thereafter cut free. Downstream of the working station 3 the sealed containers 8 ′ are moved on by a conveyor belt 12 .
  • Such packaging machines work in an intermittent way in a cycle wherein in a step with active (closed) working station processing of the web material is effected and in another step with inactive (opened) working station supply of web material to be processed from the supply roll to the working station and removal of processed web material from the working station are effected.
  • the working station remains inoperative in the inactive opened state for a long time since, on the one hand, unrolling of the web material from the supply roll has to be performed very carefully because plastic films having a thickness of only 25 ⁇ m are used as web material, for example, and, on the other hand, the supply roll weighs up to 100 kg such that large mass accelerations are necessary for unrolling. During winding-up of the processed web material large mass accelerations are necessary as well.
  • a working station must be available for its actual functions for at least 75-90% of the time and be inactive in the opened state only for 10% to a maximum of 25% of the time.
  • the inoperativeness of the working station in the inactive state due to the web transport means that no processing can be effected during this time so that the processing speed is limited by the supply of the web material.
  • the problem occurs that the necessary mass accelerations are not constant over the duration of processing of many packages but rather the mass of the supply roll decreases due to unrolling and the mass of the removal roll increases due to winding-up of the residual material.
  • it is difficult to control the method in the packaging machine such that, on the one hand, the web material is transported into the working station and out of the working station fast and that, on the other hand, the web material is tautly held and yet is not subjected to stresses large enough to cause to rupture of the web material.
  • the frame or grid structure with the web material to be removed the problem arises that it easily gets caught on components of the machine and that it disrupts more easily than the unprocessed material.
  • a packaging machine which operates intermittently in a cycle and comprises a printer for printing on a web of film as well as several working stations such as a sealing station.
  • two rolls form linear storages arranged upstream and downstream of the printer, respectively, which serve to forward a region of the web of film in the printer device portion by portion in a faster cycle while the web of film outside the printer device stands still in a main cycle.
  • the web of film is unrolled from a supply roll in the main machine cycle with inactive (i.e. inoperative) printer and with inoperative sealing station. During this, the working stations remain inoperative for the time of unrolling the web of film.
  • a packaging machine in which respective linear storages for accommodating a portion of a web material are provided upstream and downstream of a station for marking or punching which operates in a cycle and wherein the two storages are coupled.
  • a continuous movement of the web material is transformed into a cyclical movement upstream of the working station and back into a continuous movement downstream of the working station.
  • the packaging machine has the disadvantage that adjustment of the length of a portion of the web to be moved on in a cycle can only be attained by means of the transport speed of the continuous web supply and removal and of the processing speed of the working station which moreover have to be coordinated. Further, this document does not show unrolling of web material from a reservoir roll or supply roll.
  • the object is attained by a method for unrolling web material in a packaging machine operating intermittently in a clocked way with web material, comprising the steps: unrolling a predetermined length of web material to be processed ( 6 ) from a supply roll ( 1 ) and receiving it in a first storage ( 2 ) arranged upstream of a working station ( 3 ) in the processing direction as well as transporting processed web material ( 6 ′) away from a second storage ( 4 ) arranged downstream of the working station ( 3 ) in the processing direction, when the working station ( 3 ) is operative; and supplying web material to be processed ( 6 ) from the first storage ( 2 ) to the working station ( 3 ) and simultaneously transporting processed web material ( 6 ′) away from the working station ( 3 ) and receiving it in the second storage ( 4 ), when the working station ( 3 ) is inoperative.
  • a packaging machine which is constructed for intermittent clocked transport of web material, comprising:
  • fixation of the web material ( 6 ) at the input side of the working station ( 3 ) is effected when the working station ( 3 ) is operative;
  • steps requiring mass acceleration of the supply roll ( 1 ) and of the removal device ( 5 ) are only performed when the working station ( 3 ) is operative;
  • working station ( 3 ) is a sealing and cutting station.
  • first storage device ( 2 ) and the second storage device ( 4 ) are adjustable to receive a predetermined length of web material ( 6 , 6 ′);
  • first and second storage devices ( 2 , 4 ) each store the web material ( 6 , 6 ′) in form of a loop;
  • first and second storage devices ( 2 , 4 ) are each formed by two fixed rolls ( 20 , 21 ; 40 , 41 ) and a shiftable roll ( 22 ; 42 ) movable relative thereto; and
  • unrolling of web material from the supply roll and winding-up of processed web material are decoupled from the web transport into a working station and out of the same. This allows the web transport into the working station and out of the same to be performed very fast since no large mass accelerations are necessary to move the web material from the first storage into the working station and from the working station into the second storage. Time consuming unrolling of the web material and winding-up of processed web material which require large mass accelerations are performed in the time during which the working station is closed and operates.
  • the present invention further a simple changeover to different widths of web is ensured and unrolling of web material to be processed from the supply roll and winding-up of the processed web material onto the removal roll can take place independently from each other in the time during which the working station is closed. For this reason, the decreasing mass of the supply roll and the increasing mass of the removal roll during unrolling and winding-up can be taken into account.
  • FIG. 1 a schematic perspective illustration of a packaging machine with closed working station and filled first storage device and empty second storage device;
  • FIG. 3 a schematic perspective illustration of the packaging machine immediately after closing the working station
  • FIG. 4 a schematic perspective illustration of unrolling of web material to be processed into the first storage device and of removal of processed web material from the second storage device;
  • FIG. 5 a schematic perspective illustration of a packaging machine in which supplied containers are sealed with a film.
  • the packaging machine has a supply roll or reservoir roll 1 for web material to be processed 6 , a first storage device 2 , a working station 3 , a second storage device 4 and a removal device 5 for processed web material 6 ′.
  • the working station 3 is a cutting station in which regions are cut out from the web material to be processed 6 such that the processed web material 6 ′ is a frame-shaped or grid-shaped residual web material.
  • the web material to be processed 6 is for example a thin plastic film.
  • a large amount of the web material to be processed 6 is provided in stock on the supply roll 1 in wound-up form and the removal device 5 is also formed as a roll onto which the processed web material 6 ′ is wound.
  • the first storage device is formed by three rolls arranged in parallel to each other wherein two rolls 20 and 21 are fixedly mounted on a machine frame and one variable roll 22 is arranged to be shiftable in the vertical direction.
  • the web material to be processed 6 runs over the first fixed roll 20 , over the variable roll 22 to form a loop, and then over the second fixed roll 21 .
  • Downstream of the second fixed roll 21 the web material to be processed 6 runs to the working station 3 via a fixed guide roll 30 arranged on the input side of the working station 3 .
  • the processed web material 6 ′ runs from the working station 3 to the second storage device 4 via a fixed guide roll 31 arranged on the output side of the working station 3 .
  • the second storage device 4 is formed similar to the first storage device 3 by three rolls arranged in parallel wherein two rolls 40 and 41 are fixedly mounted on a machine frame and a variable roll 42 is provided below the two fixed rolls 40 and 41 to be shiftable in the vertical direction.
  • the processed web material 6 ′ runs from the fixed roll 31 of the working station 3 over the fixed roll 40 , over the variable roll 42 to form a loop and, thereafter, over the fixed roll 41 . From the fixed roll 41 the processed web material 6 ′ runs to the removal device 5 .
  • variable roll 22 of the first storage device 2 and the variable roll 42 of the second storage device 4 are mechanically coupled by a strand of chain 7 mounted on the machine frame.
  • the strand of chain 7 passes over four pulleys 70 , 70 a of which the pulley 70 a can be rotationally driven via a drive mechanism 71 .
  • the variable roll 22 and the variable roll 42 are fixed to the strand of chain 7 and guided in elongated recesses 23 and 43 , respectively, in the rear wall of the machine frame.
  • variable roll 42 of the second storage device 4 is moved downward away from the fixed rolls 40 and 41 and thus the loop of processed web material 6 ′ present in the second storage device 4 is enlarged.
  • variable roll 22 of the first storage device 2 is vertically moved in the direction towards the fixed rolls 20 and 21 and thus the loop of web material to be processed 6 formed in the first storage device 2 is shortened.
  • the loop in the first storage device 2 is shortened to the same extent to which the loop in the second storage device 4 is enlarged.
  • the supply roll 1 is further illustrated to be provided with a drive mechanism 10 capable of rotationally driving it and the removal roll 5 is provided with a drive mechanism 50 capable of rotationally driving the latter.
  • a brake which is not shown in the drawings is provided which can prevent movement of web material 6 into the working station.
  • Either the working station 3 is in an opened state/inoperative state shown in FIG. 2 in which no processing of the web material is effected or it is in a closed state/operative state illustrated in FIGS. 1, 3 and 4 in which processing of the web material is effected.
  • the working station 3 is in an operative state and in the first storage device 2 the variable roll 22 is in a lower end position (which can be adjusted by an adjustment device not shown in the drawing) such that a loop of web material to be processed 6 is formed in which a defined length of the web material 6 is retained.
  • the variable roll 42 is in an upper end position such that the loop of processed web material 6 ′ in the second storage device 4 has a minimum length.
  • the supply roll 1 and the removal device 5 are both non-operative.
  • the working station 3 has completed processing of the web material 6 and is already in an inoperative state.
  • the drive mechanism 71 is controlled such that the strand of chain 7 is moved in the clockwise direction for a predetermined distance as indicated by arrow 72 .
  • the variable roll 22 in the first storage device is moved upwards in the direction of arrow 24 such that the loop retained in the first storage device 2 is shortened, and simultaneously the variable roll 42 in the second storage device 4 is moved downwards in the direction of arrow 44 such that the loop retained in the second storage device is enlarged.
  • the supply roll 1 and the removal device 5 are inoperative.
  • a predetermined length of web material to be processed 6 is transported from the first storage device 2 to the working station 3 in the direction of arrow 25 , simultaneously processed web material 6 ′ is removed from the working station 3 in the direction of arrow 32 , and processed web material 6 ′ is transported into the second storage device 4 in the direction of arrow 45 . Since the supply roll 1 and the removal device 5 are inoperative during this transport no large mass accelerations are required and the transport can be effected at high speed.
  • the transport illustrated in FIG. 2 is effected until the variable roll 22 of the first storage device 2 is in an upper end position and the variable roll 42 of the second storage device 4 is in a lower end position as shown in FIG. 3 .
  • the working station 3 is closed and changes into an operative state in which the web material 6 is processed.
  • the brake device at the input side of the working station which is not illustrated prevents further movement of web material into the working station from occurring and brings about that the tension acting on the web material during unrolling is decoupled from the web material located in the working station.
  • the length of web material 6 to be transported during the step described with reference to FIG. 2 can be adjusted.
  • the strand of chain 7 is moved counter-clockwise in the direction of arrow 73 by the drive mechanism 71 , as shown in FIG. 4 .
  • the supply roll 1 is rotationally driven by the drive mechanism 10 and the removal device 5 is rotationally driven by the drive mechanism 50 .
  • the variable roll 22 of the first storage device 2 is moved downwards into the lower end position in the direction of arrow 26 and simultaneously web material to be processed 6 is unrolled from the supply roll 1 , transported to the first storage device 2 along arrow 11 , and stored therein.
  • the variable roll 42 of the second storage device 4 is moved into its upper end position in the direction of arrow 46 and processed web material 6 ′ is moved from the second storage device 4 to the removal device 5 along arrow 51 and wound-up therein.
  • This step takes place when the working station 3 is operative such that a long period of time is available.
  • the required large mass accelerations for unrolling web material to be processed 6 and for winding-up processed web material 6 ′ can be effected carefully and a coupling between the movement of the variable rolls 22 and 42 and the drive mechanisms 10 and 50 can be realized which takes the decreasing/increasing mass of the supply roll 1 and the removal device 5 into account.
  • the regulation of the web tension can be separately controlled for unrolling and for winding-up when the working station 3 is operative. How the control of the web tension can be performed is described in U.S. Pat. No. 4,753,059, for example.
  • the packaging machine has returned to the state shown in FIG. 1 .
  • the described steps are cyclically repeated during operation.
  • this packaging machine has the advantage that the material transport into the working station 3 and out of the working station 3 is decoupled from unrolling of web material to be processed 6 and from winding-up of processed web material 6 ′ since these steps are effected in different time periods of the working cycle. For this reason, a fast transport of the web material 6 , 6 ′ with opened working station 3 is allowed and no variations in tension occur during supply of the web material since only a negligible mass acceleration occurs during supply.
  • the weight of the supply roll and of the removal roll is only relevant in those steps of the method which are performed when the working station is operative and for which much time is available. With this construction the tension of the web material can be kept substantially constant during the entire process.
  • the packaging machine allows an easy adjustability of the length of web material to be transported by adjustment of the two end positions of the variable roll of the first storage device.
  • coupling of the first storage device with the second storage device is realized by a strand of chain, however, this coupling can also be mechanically realized with a lever, electronically with a synchro-tie or with another appropriate coupling.
  • Driving of the fast web transport when the working station 3 is inoperative can also be realized with friction rollers arranged on both sides of the working station 3 .
  • a realization with chains laterally gripping the web of film is also possible but in this case the use of web material with different width is not possible without further adaptations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
US11/404,318 2005-04-19 2006-04-13 Method for unrolling web material in a packaging machine and packaging machine Abandoned US20060255201A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005018111A DE102005018111A1 (de) 2005-04-19 2005-04-19 Verfahren zum Abrollen von Bahnmaterial in einer Verpackungsmaschine und Verpackungsmaschine
DE102005018111.2 2005-04-19

Publications (1)

Publication Number Publication Date
US20060255201A1 true US20060255201A1 (en) 2006-11-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
US11/404,318 Abandoned US20060255201A1 (en) 2005-04-19 2006-04-13 Method for unrolling web material in a packaging machine and packaging machine

Country Status (4)

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US (1) US20060255201A1 (fr)
EP (1) EP1714874A1 (fr)
JP (1) JP2006298486A (fr)
DE (1) DE102005018111A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100319505A1 (en) * 2007-09-03 2010-12-23 Ronald Celeste Device and method for conveying a paper web
EP3006354A1 (fr) * 2014-10-09 2016-04-13 Nazzareno Mondini Déroulement du film avant la coupe
US10926899B2 (en) * 2016-07-21 2021-02-23 Mondini S.R.L. Machine for sealing containers and method for sealing a plurality of containers
US11427363B2 (en) 2018-08-30 2022-08-30 Multiva Sepp Haggenmueller Se & Co. Kg Packaging system and method for producing a packaging
US11718432B2 (en) * 2018-12-21 2023-08-08 Multivac Sepp Haggenmüller Se & Co. Kg Sealing cardboard blanks by placement onto conveyor belt

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007021517A1 (de) * 2007-02-09 2008-08-14 CFS Bühl GmbH Traysealer mit Doppeltänzer
EP2557041A1 (fr) * 2011-08-11 2013-02-13 Neven-Lemmens Plastics NV Procédé de production de récipient de conditionnement scellé utilisant une bobine de matériau de plaque de découpe
JP6139233B2 (ja) * 2013-04-12 2017-05-31 株式会社日立製作所 試験管封止装置
DE102015211620A1 (de) * 2015-06-23 2016-12-29 Krones Aktiengesellschaft Verpackungsmaschine und Verfahren zur Zuförderung, Bereitstellung und zum Austausch von Rollen mit Verpackungsmaterial in einer solchen Verpackungsmaschine

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3792567A (en) * 1971-12-07 1974-02-19 Dixie Packaging Co Inc Heat sealing machine
US5182896A (en) * 1991-09-09 1993-02-02 Sweetheart Cup Company Inc. Apparatus and method for heat-sealing a film cover to open ended containers
US5371996A (en) * 1992-03-06 1994-12-13 Shikoku Kakoki Co., Ltd. Apparatus for sealing containers
US20030079440A1 (en) * 2001-07-26 2003-05-01 Michel Luc Apparatus for cutting a row of capsules from a capsule strip and for fixing them on a row of filled receptacles

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GB1089792A (en) * 1963-05-07 1967-11-08 Packmark Ltd Method and apparatus for stopping web movement
DE3318995A1 (de) * 1983-05-25 1984-11-29 Multivac Sepp Haggenmüller KG, 8941 Wolfertschwenden Verpackungsmaschine
US4625498A (en) * 1985-03-25 1986-12-02 Sealright Co., Inc. Apparatus for applying recessed membrane seals to containers
DE3520499A1 (de) * 1985-06-07 1987-01-08 Multivac Haggenmueller Kg Verpackungsmaschine mit druckeinrichtung
DE3536177C1 (de) * 1985-10-10 1987-04-16 Illig Maschinenbau Adolf Vorrichtung an einer Verpackungs- oder Thermoformmaschine zum Aufwickeln einer bandfoermigen Restfolie zu einer Rolle
US4736568A (en) * 1986-09-29 1988-04-12 Rutherford Research, Inc. Machine for sealing cups
DE19535535A1 (de) * 1995-09-25 1997-03-27 Josef Vonach Einrichtung zum rapportweisen Bedrucken einer Folienbahn
DE19618769C1 (de) * 1996-05-10 1997-06-26 Horn & Noack Pharmatechn Gmbh Vorrichtung zum Aufbringen einer Deckfolie auf eine eingeformte Behälter aufweisende Bodenfolie
DE19740988A1 (de) * 1997-09-18 1999-03-25 Lieder Maschinenbau Gmbh & Co Vorrichtung und Verfahren zum Versiegeln von Verpackungsbehältern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792567A (en) * 1971-12-07 1974-02-19 Dixie Packaging Co Inc Heat sealing machine
US5182896A (en) * 1991-09-09 1993-02-02 Sweetheart Cup Company Inc. Apparatus and method for heat-sealing a film cover to open ended containers
US5371996A (en) * 1992-03-06 1994-12-13 Shikoku Kakoki Co., Ltd. Apparatus for sealing containers
US20030079440A1 (en) * 2001-07-26 2003-05-01 Michel Luc Apparatus for cutting a row of capsules from a capsule strip and for fixing them on a row of filled receptacles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100319505A1 (en) * 2007-09-03 2010-12-23 Ronald Celeste Device and method for conveying a paper web
EP3006354A1 (fr) * 2014-10-09 2016-04-13 Nazzareno Mondini Déroulement du film avant la coupe
US10926899B2 (en) * 2016-07-21 2021-02-23 Mondini S.R.L. Machine for sealing containers and method for sealing a plurality of containers
US11427363B2 (en) 2018-08-30 2022-08-30 Multiva Sepp Haggenmueller Se & Co. Kg Packaging system and method for producing a packaging
US11718432B2 (en) * 2018-12-21 2023-08-08 Multivac Sepp Haggenmüller Se & Co. Kg Sealing cardboard blanks by placement onto conveyor belt

Also Published As

Publication number Publication date
EP1714874A1 (fr) 2006-10-25
DE102005018111A1 (de) 2006-11-02
JP2006298486A (ja) 2006-11-02

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AS Assignment

Owner name: MULTIVAC SEPP HAGGENMULLER GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NATTERER, JOHANN;REEL/FRAME:017792/0269

Effective date: 20060324

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION