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EP0726202A1 - Machine pour la fabrication de sachets plats - Google Patents

Machine pour la fabrication de sachets plats Download PDF

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Publication number
EP0726202A1
EP0726202A1 EP96101707A EP96101707A EP0726202A1 EP 0726202 A1 EP0726202 A1 EP 0726202A1 EP 96101707 A EP96101707 A EP 96101707A EP 96101707 A EP96101707 A EP 96101707A EP 0726202 A1 EP0726202 A1 EP 0726202A1
Authority
EP
European Patent Office
Prior art keywords
bag
work station
machine according
bags
flat
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
EP96101707A
Other languages
German (de)
English (en)
Other versions
EP0726202B1 (fr
Inventor
Klaus Hamm
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.)
Harro Hofliger Verpackungsmaschinen GmbH
Original Assignee
Harro Hofliger Verpackungsmaschinen 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 Harro Hofliger Verpackungsmaschinen GmbH filed Critical Harro Hofliger Verpackungsmaschinen GmbH
Publication of EP0726202A1 publication Critical patent/EP0726202A1/fr
Application granted granted Critical
Publication of EP0726202B1 publication Critical patent/EP0726202B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/267—Opening of bags interconnected in a web
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/34—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure
    • B65B43/36—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure applied pneumatically
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/46—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers
    • B65B43/465—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers for bags

Definitions

  • the invention relates to a flat bag machine.
  • a flat bag machine Such a machine has several work stations arranged one after the other.
  • open-top bags are produced by turning over a plastic web pulled off an endless roll and then longitudinally and transversely welding this web, or prefabricated bags are removed from a stack and then filled with food, for example. Then the opening of the bags is sealed.
  • the foodstuffs filled into the bags can be in powdery, chunky or other consistency.
  • the web is equipped in such a way that its web areas lying one on top of the other, for example by longitudinal folding, can be closed to one another by sealing or welding.
  • the open, double-layer plastic sheet created by folding is separated after its vertical and lower horizontal welding in sections within its vertical weld seams. This creates individual bags that are not yet closed at the top. Before the bag can be filled, its upper free opposite edges must be pulled apart. If the bag is not opened correctly, the intended filling cannot be carried out or not completely.
  • Clocked working flat bag machines are known, in which the individual work steps in connection with the The individual bags are manufactured, opened and filled one after the other in cycles.
  • the flat bags are opened in two steps.
  • the bags are gripped by lateral grippers and transported to a second work station by means of these grippers.
  • the bags are opened by the two upper bag edges being sucked in by a suction device acting from the outside.
  • a suction device acting from the outside.
  • the side edges of the bag in question must move towards one another. This means that the two gripping members, which clamp the two opposite side edges of the bag between them and thereby hold the bag, have to move towards one another accordingly.
  • the object of the invention is to provide an economically advantageous and, as far as possible, space-saving flat bag machine for filling flat bags fed in succession.
  • This invention is given for a method by the features of claim 1 and for the flat bag machine used in the method by the features of claim 6.
  • the invention is based on the knowledge that if the bags are already opened during their transport from one work station to another, at least one work station, namely a special bag opening station, can be saved. This enables the arrangement of an additional work station, such as an additional filling station, in a space comparable to the prior art.
  • the bags are often not filled with a single type of food, so that several filling stations must then be arranged one after the other. In this way, the contents can then be composed of several mixture components.
  • the device for opening the bags present in the space between the work stations can detect devices for moving the two side edges of the bag towards one another at least in the region of its opening. Alternatively or in combination, blown air can also be used to open the bags. If the bags are to be opened mechanically and in this connection the side edges to be moved towards each other, the device parts which abut the side edges or which grip the side edges must be moved relative to each other. The movement of the two parts of the device can preferably take place in guides which can be aligned, for example, in a V-shape or parallel to one another.
  • the air blow-out nozzle is therefore preferably designed such that it either has a slot-like blow-out opening that more or less spans the intermediate space, or correspondingly has a plurality of individual blow-out openings arranged next to one another.
  • the air flow can also be directed past the two side walls of the bag and the negative air pressure thereby caused can be used to open the bag - if necessary only to support the opening process.
  • the invention is described and explained in more detail below with reference to the embodiment shown in the drawing.
  • the single figure shows a schematic representation of part of a clocked flat bag machine.
  • a flat bag 16 is present in the first work station 12. It is gripped like pliers on its two side seams 18, 20 by a gripping member 22, 24 each. In its bottom area, the bag is closed by a bottom seam 26. The bag is not yet closed on its upper side 28.
  • the bag has been transported into this work station 12 in a manner which is not shown and is known per se.
  • the bag has previously been produced by once folding a web pulled off an endless roll and then welding the side seams 18, 20 and the bottom seam 26.
  • the bag 16 held in its upper region by lateral gripping members 22, 24 is moved from a first work station 12 along a path 30 to the subsequent second work station 14.
  • the two gripping members 22, 24 are not only displaced parallel to the transport movement from their first position in the work station 12 to their second position in the work station 14, but they are additionally moved relatively towards one another during their movement (arrow 32, 34).
  • the two gripping members 22, 24 therefore have a mutual distance a that is smaller than the corresponding distance A in the work station 12.
  • the gripping members 22, 24 are each guided in a guide (not shown) .
  • the mutual distance between the gripping members 22, 24 can become smaller the further the gripping members 22, 24 move away from the work station 12, or it can move to a certain smaller one Decrease value.
  • V-shaped guides for the two gripping members 22, 24 which change by a certain amount can cause such opening movements of the bag. Due to the relatively high point of engagement of the two gripping members 22, 24 on the side seams 18, 20, the side seams 18, 20 incline towards one another when opened.
  • a nozzle body 36 which in the present example also covers the area between the two work stations 12, 14.
  • a plurality of openings 40 are provided on its underside 38. These openings are present partially above the respective position of the upper side 28 of the bag 16 and laterally offset transversely to this upper side 28. Air can be introduced into the nozzle body 36 via an air supply line 42 and blown out of the openings 40 downward (arrows 44). The amount of air exiting along path 30 increases along path 30. In the present case, the number and the cross-sectional size of the openings 40 at the beginning of the path 30 are smaller than at the end of the path 30.
  • This air flows against the upper side 28 of the bag 16 in the area of the first work station 12 and in the present example also in the area between the two work stations 12, 14.
  • the air consequently also flows laterally along the two walls 46, 48 of the bag 16, while this is in the first work station 12 and in the space between the two work stations 12, 14.
  • the bag 16 In the first work station 12, air is blown through the openings 40 from above against the upper side 28 of the bag 16. This causes the bag 16 to be partially opened by at least slightly moving the two bag walls 46, 48 away from one another in the region of the upper side 28.
  • the relative distance between the two gripping members 22, 24 decreases to a minimum distance a.
  • air is still blown onto the bag 16 through the openings 40 from above.
  • the opening process is intensified since air is also blown into the bag from above and at the same time the side seams 18, 20 are moved towards one another, in particular in the region of the upper side 28 of the bag 16.
  • the bag 16.1 arrives open in the work station 14.
  • the gripping members 22, 24 in this work station 14 are at a mutual distance a that is smaller than their distance A in the first work station 12.
  • the bag 16.1 can therefore be filled immediately in this work station 14.
  • the filling process can thus take place one work station earlier than in the prior art. If a bag with a bottom fold is present, such a bag can also be opened in the area of its bottom fold in the second work station 14, which in the prior art can only be carried out in a third work station.
  • Saving a workstation is particularly advantageous especially in the case of so-called rotary machines because the mass of the rotary machine can be reduced or, if an additional filling station is arranged, it does not need to be increased compared to the prior art. Too large a mass of the rotary machine could force a reduction in the possible number of cycles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Making Paper Articles (AREA)
  • Revetment (AREA)
EP96101707A 1995-02-09 1996-02-07 Machine pour la fabrication de sachets plats Expired - Lifetime EP0726202B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29502128U 1995-02-09
DE29502128U DE29502128U1 (de) 1995-02-09 1995-02-09 Flachbeutelmaschine

Publications (2)

Publication Number Publication Date
EP0726202A1 true EP0726202A1 (fr) 1996-08-14
EP0726202B1 EP0726202B1 (fr) 1999-07-07

Family

ID=8003677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101707A Expired - Lifetime EP0726202B1 (fr) 1995-02-09 1996-02-07 Machine pour la fabrication de sachets plats

Country Status (3)

Country Link
EP (1) EP0726202B1 (fr)
DE (2) DE29502128U1 (fr)
ES (1) ES2136332T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908386A1 (fr) * 1997-10-10 1999-04-14 INDAG Gesellschaft für Industriebedarf mbH Procédé et dispositif de manipulation de sachets flexibles
WO1999059876A2 (fr) 1998-05-15 1999-11-25 Itsac N.V. Appareil permettant d'ouvrir par ecartement une zone de bord de bandes continues flexibles superposees
WO2004056657A1 (fr) * 2002-12-20 2004-07-08 Procomac S.P.A. Procede et dispositif d'ouverture d'un sachet souple
ES2215455A1 (es) * 2002-04-23 2004-10-01 Taller Autorema, S.L. Maquina embolsadora de tapas basicas y de facil apertura.
CN102275654A (zh) * 2011-05-10 2011-12-14 哈尔滨博实自动化股份有限公司 横向移送满料袋的物料包装方法及装置
CN103662125A (zh) * 2013-11-30 2014-03-26 南通宝田包装科技有限公司 一种适用于包装袋的填料机构
CN104925312A (zh) * 2015-06-14 2015-09-23 潼南县三鑫林业综合开发有限公司 食品装袋生产线

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5743070A (en) * 1996-08-16 1998-04-28 Automated Packaging Systems, Inc. Packaging machine, material and method
LT4183566T (lt) 2021-11-22 2025-01-27 Harro Höfliger Verpackungsmaschinen GmbH Prietaisas trimačiams objektams užsandarinti plėvelės maišelio angoje

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE437129A (fr) *
EP0129502A2 (fr) * 1983-06-15 1984-12-27 Mitsubishi Jukogyo Kabushiki Kaisha Appareil de remplissage de sacs
WO1991017924A1 (fr) * 1989-03-13 1991-11-28 R.A. Jones & Co. Machine reglable de formage, de remplissage et de fermeture etanche de sachets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE437129A (fr) *
EP0129502A2 (fr) * 1983-06-15 1984-12-27 Mitsubishi Jukogyo Kabushiki Kaisha Appareil de remplissage de sacs
WO1991017924A1 (fr) * 1989-03-13 1991-11-28 R.A. Jones & Co. Machine reglable de formage, de remplissage et de fermeture etanche de sachets

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908386A1 (fr) * 1997-10-10 1999-04-14 INDAG Gesellschaft für Industriebedarf mbH Procédé et dispositif de manipulation de sachets flexibles
US6073424A (en) * 1997-10-10 2000-06-13 Indag Gesellschaft Fur Industriebedarf M.B.H Apparatus for treating flexible bags
CN1069594C (zh) * 1997-10-10 2001-08-15 Indag工业品有限公司 柔软包装袋的填充机
WO1999059876A2 (fr) 1998-05-15 1999-11-25 Itsac N.V. Appareil permettant d'ouvrir par ecartement une zone de bord de bandes continues flexibles superposees
ES2215455A1 (es) * 2002-04-23 2004-10-01 Taller Autorema, S.L. Maquina embolsadora de tapas basicas y de facil apertura.
WO2004056657A1 (fr) * 2002-12-20 2004-07-08 Procomac S.P.A. Procede et dispositif d'ouverture d'un sachet souple
CN102275654A (zh) * 2011-05-10 2011-12-14 哈尔滨博实自动化股份有限公司 横向移送满料袋的物料包装方法及装置
CN102275654B (zh) * 2011-05-10 2012-10-10 哈尔滨博实自动化股份有限公司 横向移送满料袋的物料包装方法及装置
CN103662125A (zh) * 2013-11-30 2014-03-26 南通宝田包装科技有限公司 一种适用于包装袋的填料机构
CN104925312A (zh) * 2015-06-14 2015-09-23 潼南县三鑫林业综合开发有限公司 食品装袋生产线

Also Published As

Publication number Publication date
DE59602353D1 (de) 1999-08-12
EP0726202B1 (fr) 1999-07-07
ES2136332T3 (es) 1999-11-16
DE29502128U1 (de) 1995-04-20

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