EP0573811A1 - Machine pour la fabrication continue de sachets tubulaires munis de plis latéraux - Google Patents

Machine pour la fabrication continue de sachets tubulaires munis de plis latéraux Download PDF

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Publication number
EP0573811A1
EP0573811A1 EP93107934A EP93107934A EP0573811A1 EP 0573811 A1 EP0573811 A1 EP 0573811A1 EP 93107934 A EP93107934 A EP 93107934A EP 93107934 A EP93107934 A EP 93107934A EP 0573811 A1 EP0573811 A1 EP 0573811A1
Authority
EP
European Patent Office
Prior art keywords
machine according
connecting rod
holding device
guide element
bag
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.)
Ceased
Application number
EP93107934A
Other languages
German (de)
English (en)
Inventor
Wolfgang Kauss
Werner Schneider
Walter Dr. Baur
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.)
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
Original Assignee
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema 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 Rovema Verpackungsmaschinen GmbH and Co KG, Rovema GmbH filed Critical Rovema Verpackungsmaschinen GmbH and Co KG
Publication of EP0573811A1 publication Critical patent/EP0573811A1/fr
Ceased 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2042—Means for altering the cross-section of the tube filling opening prior to transversal sealing, e.g. tube spreading devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously

Definitions

  • the invention relates to a tubular bag machine for producing gusseted packs, the packs being produced from a web-shaped material which is continuously formed by means of a shaped shoulder into a tube with the subsequent formation of a longitudinal seam, the top and bottom seam being formed by means of at least one
  • a pair of cross-welding / cross-sealing jaws rotating cyclically on approximately circular tracks and guided parallel to one another is formed, with a crank disc coupled to a connecting rod, and with gusset plungers which are movably mounted on a guide element transversely to the direction of movement of a film tube.
  • a disadvantage of these intermittently operating packaging machines is that due to downtimes the machine performance is limited in terms of the cross sealing jaw movement and film removal. Particularly due to the very high film acceleration, the frictional connection between the film and the friction belt is no longer guaranteed, so that the set bag length is no longer achieved due to slippage.
  • the object of the present invention is to provide a gusset device for a continuously operating tubular bag machine which, with a simple construction and reliable operation, produces stable bags or bags with an inserted gusset.
  • the device according to the invention is distinguished by a number of considerable advantages. Since the side folding device is moved in the vertical direction synchronously with the cross sealing jaws, no relative speed occurs between the two during the actual workflow. As a result of the fixed spatial relationship created in this way, the work process, as is known in intermittently working machines, can be transferred to the continuously working one. In this way, a perfect quality of the bags can be achieved.
  • the synchronous movement is achieved in that the drive of the side folding device is operationally connected to the transverse sealing station is.
  • a mechanical coupling ensures that the movements are coordinated in every working phase of the tubular bag machine.
  • the vertical movement is generated by a connecting rod, the vertical direction of movement of the side folding device being predetermined by means of a guide. This reduces the number of components to a minimum.
  • the working stroke of the gusset plunger is also generated mechanically perpendicular to the direction of movement of the tube material. This makes it possible to operate the entire device without an active drive device, such as pneumatic cylinders, etc.
  • the setting is much easier and can also be carried out by personnel who have not been specially trained or trained.
  • a molding box below the side folding device, which is likewise moved up and down in the vertical direction in synchronism with the latter and with the cross sealing jaws.
  • the bag can then be subsequently brought into a rectangular shape again during the sealing of the head seam.
  • the device can be adjusted to different radii of the sealing jaw movement by also adjusting the connecting rod stroke for the side folding device to the changed conditions. This is particularly necessary if large bag formats are to be produced for large radii or high operating speeds of the tubular bag machine are to be achieved for small radii.
  • both the movement of the transverse sealing jaws and of the gusset plunger tools are thus brought about by a single drive, namely the rotation of the crank disk. It is thus possible in a particularly simple manner to synchronize the vertical movement of the cross sealing jaws and the horizontal movement of the gusset plunger tools. This synchronization is thus present throughout the entire course of movement, not, as in similar devices known from the prior art, only at the beginning and end of the respective movement of a work cycle.
  • both the connecting rod stroke of the holding device ie the vertical one Adjust the stroke of the cross sealing jaws as well as the horizontal stroke of the gusset plunger tools and adapt them to the respective bag sizes, cycle speeds and the like.
  • a generic bag 1 is shown as it is produced with the help of a side folding device.
  • the bag has a substantially rectangular cross section.
  • the top and bottom seams 2, 3 are folded inwards from the side surfaces 4.
  • the head area thus forms a gable 5.
  • the bottom area is folded further inwards than the head area, and after the seam is subsequently folded over there is an almost rectangular base area which enables the bag to have a certain stability.
  • FIGS. 2 and 3 show a front view of the side folding device according to the invention.
  • the timing belt 6 coming from the main drive drives by means of the toothed pulley 7 and Shaft 8 on a crank disc 9.
  • the shaft 8 is mounted in a frame 10 which is provided for holding the cross sealing station and the side folding device.
  • a pot curve 11 which in turn is attached to a holding disk 12.
  • the pot curve 11 can be displaced in the direction of rotation relative to the holding disc 12 and can be fixed in a designated position by means of a clamping screw 13.
  • a connecting rod 14 is mounted on the crank disc 9 and is connected to a holding device 15.
  • the holding device 15 in turn is guided by means of rollers 16 and a guide element 17 such that only a vertical upward and downward movement according to the predetermined connecting rod stroke P is possible.
  • a further guide element 18 and two guide rods 19, 20 are located on the holding device 15. At the upper and lower ends of the guide element 18 a holding rod 21, 22 is provided, on which the side gusset punches 23, 24 are arranged.
  • FIG. 4 shows the vertical position of the side gusset punches 23, 24, one in each case being arranged just above or below the sealing jaw 25.
  • the transverse sealing jaws are arranged in the transverse sealing station to be considered, each via a carrier 26 on a pair of crank arms 27, which in turn are connected via two connecting links 28 to a second pair of connecting rod arms 29 for parallel guidance of the sealing jaws.
  • the resulting four-bar mechanism results in a parallel guidance of the sealing surfaces to one another.
  • the stroke H required to produce a side fold is generated by the device according to the invention as follows:
  • the pin 32 which is rotatably and axially displaceably mounted in the crank disk 9, rests on the surface of the cup curve 11 and moves when the crank disk 9 rotates Contour.
  • the pin 32 passes through an elevation of the curve contour, as a result of which delivery takes place in the axial direction.
  • On the pin 32 outside the crank disc 9 is a rocker arm 33 which is pivotally mounted on the joint 34.
  • a further coupling joint 35 is arranged, to which an arm 36 connects.
  • a pin 38 pretensioned by means of a spring 37 presses against the rocker arm 33 and thus generates a sufficiently large restoring force for the rocker arm 33 and the bearing force for the cam pin 32.
  • the prestressed spring 37 When generating the working stroke H, the prestressed spring 37 is compressed further.
  • the arm 39 which is pivotably mounted at the pivot point 40 and is fixedly connected to the arm 36, pivots with its upper part essentially horizontally and in the radial direction to the film tube 41.
  • the guide element 18 By guiding the link by means of a cam 42 and an elongated recess 43 in the arm 39 the guide element 18 from the position A shown in dashed lines to the position B pushed.
  • the sealing jaws 25 close in order to carry out the sealing seams 2, 3 and the separating cut.
  • a further holding rod 44 can also be arranged on the holding device, to which a U-shaped plate 45 is fastened.
  • the two opposite sheets 45 result in a rectangular shaft when the side folding device is moved together, which additionally brings the bag 1 into a rectangular shape.
  • the sheets 45 as well as the gusset pliers 23, 24 are format parts and can be exchanged for other parts if the bag geometry is changed.
  • the durability of a bag can be increased by folding the bottom seam 3 by means of a device 46.
  • the device 46 is below the bag shaft arranged.
  • a swiveling plate, a blowing device or a combination of both can be used here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
EP93107934A 1992-06-06 1993-05-14 Machine pour la fabrication continue de sachets tubulaires munis de plis latéraux Ceased EP0573811A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4218810A DE4218810C2 (de) 1992-06-06 1992-06-06 Schlauchbeutelmaschine zum kontinuierlichen Herstellung von mit Seitenfalten vesehenen Packungen
DE4218810 1992-06-06

Publications (1)

Publication Number Publication Date
EP0573811A1 true EP0573811A1 (fr) 1993-12-15

Family

ID=6460604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107934A Ceased EP0573811A1 (fr) 1992-06-06 1993-05-14 Machine pour la fabrication continue de sachets tubulaires munis de plis latéraux

Country Status (3)

Country Link
US (1) US5398486A (fr)
EP (1) EP0573811A1 (fr)
DE (1) DE4218810C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2119600A1 (es) * 1994-09-20 1998-10-01 Daumar Talleres Perfeccionamientos en las maquinas envasadoras en bolsas.
EP0965521A1 (fr) * 1998-06-16 1999-12-22 Mapa S.r.l. Machine pour emballer des produits en vrac ou des groupes d'articles dans un sachet tubulaire

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9626785D0 (en) * 1996-12-23 1997-02-12 Ishida Seisakusho Form-fill-seal packaging machine
US6006497A (en) 1997-03-26 1999-12-28 Reichhold Chemicals, Inc. Methods and apparatus for preparing a hot melt adhesive
US5974769A (en) * 1997-08-01 1999-11-02 Uniflex, Inc. Automated container insert device
AT407236B (de) * 1998-10-05 2001-01-25 Starlinger & Co Gmbh Vorrichtung zur trennung übereinanderliegender materialbahnen
DE10005701A1 (de) * 2000-02-09 2001-08-16 Rovema Gmbh Vorrichtung zum Erzeugen einer Seitenfalte eines Beutels
ITBO20010430A1 (it) * 2001-07-09 2003-01-09 Ica Spa Confezionatrice a tubo formatore verticale
ES2201896B1 (es) * 2002-02-21 2005-06-01 Sotrafa, S.A. Maquina y procedimiento para la obtencion de un tubo de grandes dimensiones de film plastico flexible plegado en forma de fuelle.
US7516596B2 (en) * 2002-03-18 2009-04-14 Frito-Lay North America, Inc. Bandolier format packaging
US7299608B2 (en) * 2002-03-18 2007-11-27 Frito-Lay North America, Inc. Quick change module with adjustable former attachments
US6722106B2 (en) * 2002-03-18 2004-04-20 Recot, Inc. Vertical stand-up pouch
US7254930B2 (en) * 2002-03-18 2007-08-14 Frito-Lay North America, Inc. Stationary tucker bar mechanism
US7552574B2 (en) * 2002-03-18 2009-06-30 Frito-Lay North America, Inc. Variable tension gusseting system
US6860084B2 (en) * 2002-03-18 2005-03-01 Frito-Lay North America, Inc. Vertical stand-up pouch with zipper seal quick change module
DE10344116A1 (de) * 2003-09-24 2005-04-21 Manfred Hauers Kontinuierlich arbeitende vertikale Schlauchbeutelmaschine
DE602004012333T2 (de) * 2004-06-04 2009-03-26 Altopack S.P.A. Maschine zum verpacken von kleinformatigen produkten in beuteln mit flachem boden
DE102005005947A1 (de) * 2005-02-10 2006-08-17 Rovema - Verpackungsmaschinen Gmbh Vertikale Schlauchbeutelmaschine mit einem Seitenfaltenerzeuger
US7305805B2 (en) * 2005-09-22 2007-12-11 Frito-Lay North America, Inc. Method for making a flexible reclosable package
EP2054315B1 (fr) * 2006-08-24 2011-03-30 Crown Packaging Technology, Inc Support de renforcement
US20080066430A1 (en) * 2006-09-15 2008-03-20 Triangle Package Machinery Company Continuous motion drive mechanism for a form, fill, and seal machine
DE102006048106A1 (de) * 2006-10-11 2008-04-17 Rovema - Verpackungsmaschinen Gmbh Vorrichtung zum Einfalten und Verschweißen eines Folienschlauches
US8616768B2 (en) * 2006-10-27 2013-12-31 Chokoku Plast Corporation Pleated stand-up packaging pouch, pleated stand-up packaging body, feed roll for pleated stand-up packaging body, and method of manufacturing pleated stand-up packaging body
US9296171B2 (en) * 2008-03-11 2016-03-29 Frito-Lay North America, Inc. Method for making a flat bottom pillow pouch
JP2010184732A (ja) * 2009-02-13 2010-08-26 Ishida Co Ltd 製袋包装機
US8539741B2 (en) * 2010-02-10 2013-09-24 Triangle Package Machinery Company Seal and cut method and apparatus
US9840346B2 (en) * 2013-11-01 2017-12-12 Frito-Lay North America, Inc. Method and apparatus for making a structurally resilient package
US9902517B2 (en) * 2013-11-01 2018-02-27 Frito-Lay North America, Inc. Apparatus and method for a structurally resilient package
US10358244B2 (en) 2015-10-26 2019-07-23 Triangle Package Machinery Co. Rotatable sealing jaw assembly for a form, fill and seal machine
CN109677701A (zh) * 2018-12-29 2019-04-26 厦门市宇笙包装机械有限公司 包装机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079662A (en) * 1976-11-30 1978-03-21 Triangle Package Machinery Company Bag making machine
EP0226693A1 (fr) * 1985-12-20 1987-07-01 Rovema Verpackungsmaschinen Gmbh Machine d'emballage pour fabriquer, remplir et fermer des sacs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391081A (en) * 1980-09-08 1983-07-05 Hayssen Manufacturing Company Method of and apparatus for forming, filling and sealing packages
US4815253A (en) * 1987-06-19 1989-03-28 Hayssen Manufacturing Company Forming, filling and sealing bags and depositing them in cartons
DE4005078A1 (de) * 1990-02-17 1991-08-29 Rovema Gmbh Vorrichtung zum herstellen, fuellen und verschliessen von beuteln aus einem heissversiegelbaren band

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079662A (en) * 1976-11-30 1978-03-21 Triangle Package Machinery Company Bag making machine
EP0226693A1 (fr) * 1985-12-20 1987-07-01 Rovema Verpackungsmaschinen Gmbh Machine d'emballage pour fabriquer, remplir et fermer des sacs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2119600A1 (es) * 1994-09-20 1998-10-01 Daumar Talleres Perfeccionamientos en las maquinas envasadoras en bolsas.
EP0965521A1 (fr) * 1998-06-16 1999-12-22 Mapa S.r.l. Machine pour emballer des produits en vrac ou des groupes d'articles dans un sachet tubulaire

Also Published As

Publication number Publication date
DE4218810A1 (de) 1993-12-09
DE4218810C2 (de) 1996-02-15
US5398486A (en) 1995-03-21

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