EP1464578A1 - Machine pour fabriquer des sacs tubulaires - Google Patents

Machine pour fabriquer des sacs tubulaires Download PDF

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Publication number
EP1464578A1
EP1464578A1 EP04014687A EP04014687A EP1464578A1 EP 1464578 A1 EP1464578 A1 EP 1464578A1 EP 04014687 A EP04014687 A EP 04014687A EP 04014687 A EP04014687 A EP 04014687A EP 1464578 A1 EP1464578 A1 EP 1464578A1
Authority
EP
European Patent Office
Prior art keywords
film
welding device
edge
tube
tubular 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.)
Granted
Application number
EP04014687A
Other languages
German (de)
English (en)
Other versions
EP1464578B1 (fr
Inventor
Gerhard Kuss
René Ohrisch
Harald Braun
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7931038&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1464578(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rovema Verpackungsmaschinen GmbH and Co KG, Rovema GmbH filed Critical Rovema Verpackungsmaschinen GmbH and Co KG
Publication of EP1464578A1 publication Critical patent/EP1464578A1/fr
Application granted granted Critical
Publication of EP1464578B1 publication Critical patent/EP1464578B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • B65B9/207—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
    • 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
    • B65B9/2014—Tube advancing means
    • B65B9/2021—Tube advancing means combined with longitudinal welding 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
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • 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
    • 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
    • B65B9/213—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 having intermittent motion
    • 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
    • B65B9/22—Forming shoulders; Tube formers
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/10—Creating an off-center longitudinal seal on horizontal or vertical form fill seal [FFS] machines
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/12—Creating additional longitudinal welds on horizontal or vertical form fill seal [FFS] machines for stiffening packages or for creating package edges
    • 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
    • B65B9/2056—Machines for packages of special type or form

Definitions

  • the invention relates to a tubular bag machine with a film web, one Supply roll, deflection rolls for feeding the flat film web to a form shoulder, a film take-off for transporting the film web, a filling tube for receiving the a film tube formed film sheet, baking a cross welding device for the production of transverse seams, a separating device for severing the Film tube, and connected to the filling tube and pointing away from the filling tube, flat expansion elements, the expansion elements in the film transport direction an edge welding device is provided downstream of each spreading element, directed against the hose edge deflected by a respective expansion element is.
  • Such a known tubular bag machine is used to manufacture Tubular bags, the four edges of which are welded. These tubular bags have one relatively good stability. By using the asymmetrical shape shoulder, the otherwise the longitudinal seam running in the middle of the bag in the region of an edge of the bag placed so that a separate longitudinal seam no longer occurs.
  • tubular bag machine is known from IT 0 127 41 00 B. known in which a longitudinal seam in the form of an overlap seam on a Foil tube is in contact.
  • a bag with only four longitudinal weld seams does not have that Longitudinal seam impairing bag printing.
  • the known tubular bag machines do not offer the possibility of bags with good handle opening aid or resealable aid so that they Help uses the special shape of the bag welded along its four edges.
  • the invention is based on the problem of this disadvantage Eliminate tubular bag machine according to the preamble of claim 1.
  • the problem is solved in accordance with the characterizing part of claim 1 a separate longitudinal welding device for welding the edge of the hose adjacent area provided.
  • the longitudinal seam which otherwise runs in the middle of the bag, becomes the form shoulder in the area one edge of the bag, so that a separate, central longitudinal seam no longer occurs.
  • the longitudinal welding device is opposite to that adjacent to it Edge welding device offset towards the film edges.
  • the invention has the advantage that as a result of the two on a hose edge provided welding devices, namely an edge welding device and the separate longitudinal welding device, two longitudinal seams directly next to each other in the area the edge of the tube on which the film tube is closed lengthwise become.
  • one seam can be considered to be relatively tear-proof and non-resealable seam may be provided, and the other seam may be considered light openable or serve as a reclosable seam.
  • a seam is fulfilled primarily the purpose of bag stabilization due to their edge welding and the other seam serves as a secure bag closure.
  • the edges sealing seams generally have a lower strength than the bags welding longitudinal seam.
  • a bag produced in this way is also particularly important when the outer, ie. H.
  • the first seam to be opened is a seam that can be opened easily, and the subsequent seam fulfills the function of edge stabilization.
  • the first the seam to be opened can have a reclosing aid.
  • the longitudinal welding device Since the longitudinal welding device compared to the adjacent edge welding device is offset towards the edge of the film, the longitudinal welding device causes Closure of the film tube at the point where the two film edges meet. An edge area adjoins these edges. This Arrangement allows the production of welded on four edges in a simple manner Bags with longitudinal seam bounded by an edge. The edge can also be without Bag sealing property can be formed.
  • the proposed tubular bag machine is used to produce bags, the The edge of the film lies in the form of an overlap seam on the bag (film tube).
  • the Inquiries can be provided by means of a corresponding welding.
  • a device for attaching a bag opening aid or a resealable aid is attached, and this help for the entry into the Longitudinal seam and / or the edges to be welded is provided, so a selected seam can be equipped with appropriate help.
  • Suitable as an aid according to claim 2 in particular a strip-shaped peel layer to a light Open after grasping the film edges to achieve a double-sided adhesive Adhesive tape to ensure a secure seal in conjunction with a To achieve reclosability, as well as a zipper reclosure strip to in particular to be able to use repeated reclosing.
  • the tubular bag machine can be operated continuously or clocked.
  • the film take-off is carried out accordingly.
  • the mode of operation is suitable for longitudinal sealing tapes (Claim 3) and a rotating system of cross jaws. Heat-sealing jaws, the can be operated in cycles (claim 4) in a clocked mode of operation be used.
  • Gussets are used to create gussets in the film tube.
  • a pair of gusset generators that move against each other is used to create two to pierce opposite gussets in the film tube.
  • Tubular bag each with two opposite transverse seams welded.
  • These bags are very dimensionally stable. They become top and bottom welded with cross seams.
  • the gussets are in the transverse seams shrink wrapped.
  • the bag is symmetrical with regard to its gusset arrangement and can be relatively round molded to give a can-like appearance in a framed shape have and to serve as a can replacement in the most advantageous way (material saving).
  • the shape shoulder has a side slot through which the film edge is led out (claim 7), the tubular bag machine with a conventional, but slotted, asymmetrical shaped shoulder become.
  • a preforming of the edges can be done in a technically simple manner and independently of the operating mode of the tubular bag machine take place if according to claim 8 Area of the form shoulder two film retainers are provided, each between Two film spreaders are arranged around the film tube for one Preform edge welding. These film spreaders are used for a safe Preforming attached to the fill pipe (claim 9).
  • a flat film web 2 is separated from one Unwrapped supply roll 3 and an asymmetrical via a guide roller 4 Form shoulder 5 fed ( Figure 1).
  • the collar-chest parts 34, 35 of the shape shoulder 5 are of different lengths.
  • a film take-off 6 serves for the further transport of the film web 2.
  • a filling tube 7 receives the film web 2 formed into a film tube 8.
  • Jaws 9 of a transverse welding device 10 which are movable against one another serve the purpose Generation of transverse seams 11 on the film tube 8.
  • the filling tube 7 fills the generated seams Pouch 13.
  • each Spreading element 14 is provided, each counter to a spreading element 14 deflected hose edge 16 is directed.
  • a separate longitudinal welding device 18 is for a welding of the area adjacent to the hose edge 16 is provided in order to to produce two weld seams directly next to each other.
  • the longitudinal welding device 18 creates a longitudinal seam 20, whereas each edge welding device 15 creates a welded edge 21 on the film tube 8.
  • the longitudinal welding device 18 is opposite the edge welding device 15 adjacent to the film edge 17 moved there.
  • the film edge 17 itself is designed in the form of an overlap seam.
  • the film take-off 6 is operated continuously.
  • the longitudinal welding device 18 and the edge welding devices 15 are continuously driven, rotating Sealing bands.
  • the edge welding devices 15 each have a counter holder on.
  • a pair 24 is in front of the film transport direction and a pair 25 provided after the cross welder 10.
  • the distance 27 of the is a pair 24 from the cross sealer 10, in the film transport direction seen, equal to the distance 27 of the other pair 25 from the Cross welding device 10.
  • the shape shoulder 5 has a lateral slot 28 through which the film edge 17 is brought out.
  • two film retainers 29 are on Filling tube 7 is provided, which are each arranged between two film spreaders 30, to preform the film tube 8 for welding the edges 21.
  • the bag opening aid 32 is a strip-shaped one Peel layer that runs into the longitudinal seam 20 and serves to produce one produced in this way Bags 13 easier to open.
  • the bag 13 has four side folds 33 and is by means of the head and bottom one transverse seam 11 each closed. Next to one of its four welded edges 21 runs its longitudinal seam 20. The peel layer within the longitudinal seam 20 enables easy opening of the longitudinal seam 20 by pulling it open.
  • the bags 13 generated can be placed on the edges 21 on which the Longitudinal seam 20 does not occur. Then the longitudinal seam 20 lying at the top can be opened to remove product from the bag 13. The edges 21 stabilize the Bag 13.
  • the edge 21 adjacent to the longitudinal seam 20 could also be tight be closed and in the longitudinal seam 20 there could be a double-sided adhesive Adhesive strips or a zipper-resealable strip are located to make it easy To achieve reclosure of the bag 13.
  • the Longitudinal seam 20 are welded firmly and the adjacent edge 21 with a Reclosing aid. The device 31 would then have to do this are displaced little to the center 36 of the film web 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Glass Compositions (AREA)
EP04014687A 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires Revoked EP1464578B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19957891A DE19957891A1 (de) 1999-12-01 1999-12-01 Schlauchbeutelmaschine
DE19957891 1999-12-01
EP00125666A EP1106508B1 (fr) 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00125666A Division EP1106508B1 (fr) 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires

Publications (2)

Publication Number Publication Date
EP1464578A1 true EP1464578A1 (fr) 2004-10-06
EP1464578B1 EP1464578B1 (fr) 2005-06-29

Family

ID=7931038

Family Applications (3)

Application Number Title Priority Date Filing Date
EP04014688A Expired - Lifetime EP1462364B2 (fr) 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires
EP04014687A Revoked EP1464578B1 (fr) 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires
EP00125666A Revoked EP1106508B1 (fr) 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04014688A Expired - Lifetime EP1462364B2 (fr) 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00125666A Revoked EP1106508B1 (fr) 1999-12-01 2000-11-23 Machine pour fabriquer des sacs tubulaires

Country Status (5)

Country Link
US (1) US6729112B2 (fr)
EP (3) EP1462364B2 (fr)
AT (3) ATE298703T1 (fr)
DE (4) DE19957891A1 (fr)
ES (3) ES2242176T3 (fr)

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DE50010650D1 (de) 2005-08-04
ATE306420T1 (de) 2005-10-15
ATE275499T1 (de) 2004-09-15
DE50011347D1 (de) 2006-02-23
EP1462364B1 (fr) 2005-10-12
ES2228384T3 (es) 2005-04-16
EP1106508B1 (fr) 2004-09-08
DE19957891A1 (de) 2001-06-07
EP1462364B2 (fr) 2009-07-22
ES2250945T3 (es) 2006-04-16
US20010005979A1 (en) 2001-07-05
EP1464578B1 (fr) 2005-06-29
ES2250945T5 (es) 2009-12-11
EP1106508A1 (fr) 2001-06-13
DE50007676D1 (de) 2004-10-14
EP1462364A1 (fr) 2004-09-29
ES2242176T3 (es) 2005-11-01
US6729112B2 (en) 2004-05-04
ATE298703T1 (de) 2005-07-15

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