EP0775640A2 - Sachet d'emballage et dispositif pour fermer un tel sachet - Google Patents

Sachet d'emballage et dispositif pour fermer un tel sachet Download PDF

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Publication number
EP0775640A2
EP0775640A2 EP96118740A EP96118740A EP0775640A2 EP 0775640 A2 EP0775640 A2 EP 0775640A2 EP 96118740 A EP96118740 A EP 96118740A EP 96118740 A EP96118740 A EP 96118740A EP 0775640 A2 EP0775640 A2 EP 0775640A2
Authority
EP
European Patent Office
Prior art keywords
bag
protrusions
folded
product
triangles
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.)
Withdrawn
Application number
EP96118740A
Other languages
German (de)
English (en)
Other versions
EP0775640A3 (fr
Inventor
Karlheinz Weisser
Ulrich Wald
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.)
Paper Converting Machine GmbH
Original Assignee
Paper Converting Machine 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 Paper Converting Machine GmbH filed Critical Paper Converting Machine GmbH
Publication of EP0775640A2 publication Critical patent/EP0775640A2/fr
Publication of EP0775640A3 publication Critical patent/EP0775640A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/08—Bags or like containers made of paper and having structural provision for thickness of contents with block bottoms

Definitions

  • the invention relates to a pouch packaging, in particular for hygiene paper products, with four pouch sides protruding from an open end of the pouch, which are folded over the product in such a way that two opposite first pouch protrusions are folded onto the free product side to form approximately isosceles triangles, the base of which runs almost along a product edge and the legs of which run obliquely inwards on the product side mentioned, while the other two opposing second bag protrusions are folded onto the triangles mentioned while maintaining their approximately rectangular shape and are connected to one another in the overlapped area when folded down.
  • Bag packaging of this type has long been produced by machine.
  • two folding fingers approaching transversely from the outside from two opposite bag protrusions are used, which fold these protrusions into the open bag cross section, forming approximately isosceles triangles.
  • the two other opposing bag protrusions are folded into the bag opening at an angle of 45 °, taking the corners of the first-mentioned bag protrusions through plates attacking from the outside, so that they overlap along the center of the opening.
  • the last folded-in bag protrusions are connected to each other, which is done by welding in the usual bags made of plastic film. Any protruding edges can be cut up to a short safety distance from the weld. The packaging is then closed reliably and cleanly.
  • the triangular folding of the first bag protrusions is preferably carried out by two levers acting from the left and right, whereas the other two bag protrusions are folded in from above or below.
  • This folding geometry is suitable for all products that are wider than tall.
  • the object of the present invention is to improve the known bag packaging and the packaging machine used for this purpose in such a way that not only the bag geometry provided for this purpose but also - at least within certain limits - the reverse bag geometry can be processed with one and the same machine.
  • the invention is therefore based on the knowledge that the undesired overlap of the folded triangles, if they are to be folded in on the longitudinal sides of the product lying close to one another, can be avoided in that part of the bag protrusion is moved outwards, so that it is to the side protrudes beyond the product contour.
  • the angle of the triangle legs with their base running along the product edge which has previously been 45 ° or more, is reduced, whereby on the one hand the folded triangles no longer run as far into the bag opening and on the other hand the corners of the first bag protrusions that come with the second Bag protrusions are folded in, protrude outwards.
  • the packaging bags are generally under a certain internal pressure, so that the lateral protrusion is hardly recognizable.
  • the overlap area itself is expediently arranged approximately in the middle, as before, with the connection of the last folded-in bag protrusions in this overlap area being carried out by welding or gluing, and these bag protrusions being shortened after being connected to one another by cutting.
  • the known machines in which the first bag protrusions are folded in by means of two folding elements, in particular levers with a V-shaped front contour, which are to be moved transversely from the outside in opposite directions to the bag protrusions, the Fingers or the front edges act as folded edges for the triangles to be folded.
  • the folding geometry according to the invention only the geometry of the folding edges needs to be changed such that they have an angle of over 90 °, in particular, at their imaginary tip Include over 100 °. If you then work with a vertical course of the first bag protrusions and with laterally acting folding elements, it no longer matters whether the bags to be closed lie flat or upright, whether the triangles are folded on the narrow sides or on the long sides.
  • the open bag bottom After filling a prefabricated bag made of plastic, paper or the like, the open bag bottom should be folded in and closed.
  • the two bag protrusions 1 a and 1 b on the narrow sides of the bag are first folded down onto the product in such a way that isosceles triangles 1 a 'and 1 b' form there, the base of these triangles along the product edges on the mentioned narrow sides runs.
  • the turning angle of these triangles is 45 °.
  • the bag protrusions 2 a and 2 b folded into the bag opening on the long sides of the bag, taking the corners of the first bag protrusions 1 a and 1 b with them and burying them under one another.
  • the protrusions 2 a and 2 b meet and are connected to one another along their overlap zone L over the entire length.
  • this folding geometry is only suitable for flat to square bag cross sections.
  • the triangles 1 a 'and 1 b' overlap with the described consequences. Therefore, according to the invention, as shown in FIG. 2, the first bag protrusions 10 a and 10 b are folded in with an angle of turn of less than 45 °, advantageously less than 40 °.
  • the folded triangles 10 a 'and 10 b' then no longer protrude so far into the bag opening, so that an overlap of the triangle tips is avoided.
  • a multiple overlap compared to the folding geometry in FIG. 1 still occurs in the area of each individual triangle tip; however, this does not hinder the further closure of the bag, nor is this visually noticeable.
  • the predominant material of the bag protrusions 10 a and 10 b is pressed out laterally when the other bag protrusions 20 a and 20 b are folded in, so that the bending edges K between adjacent bag protrusions no longer run along the product contour as in FIG. 1, but run obliquely outwards until they reach their maximum in the central longitudinal plane of the bag, that is to say at the overlap zone L.
  • the bag protrusions 20 a and 20 b meet at the central longitudinal plane and are connected to one another there. In contrast to FIG. 1, this connecting zone L extends beyond the product contour on both sides.
  • Figures 3 and 4 show a device for producing the bag packaging according to the invention. It is only shown schematically with regard to the most important parts.
  • folding elements 30 a and 30 b in the form of swivel levers which are mounted at their upper end on swivel bearings 31 a and 31 b, while their lower ends have V-shaped folding edges 32 a and 32 b.
  • the pivot levers are pivoted in a known manner, in particular by hydraulic or pneumatic cylinders from the open position shown in Figure 3 on both sides of the filled bag B, so that the folded edges 32 a and 32 b approximately in the middle of the vertically extending longitudinal bag protrusions 10 a and hit 10 b.
  • folding flaps attack the narrow-side bag protrusions 20 a and 20 b.
  • the longitudinal bag protrusions 10 a and 10 b are folded in a triangular shape and the narrow-side bag protrusions 20 a and 20 b are folded over them.
  • the various folding elements are moved out and the narrow-side bag protrusions 20 a and 20 b are connected in the overlap region L in a manner known per se.
  • the longitudinal bag protrusions 10 a and 10 b form triangles with a base angle which is less than 40 °.
  • the collapsed state of the folded edges 32 a and 32 b is shown in Figure 4. It can be seen that the folding geometry has been chosen so that the two triangles folded in on the long side touch each other almost in the middle of the bag opening, and one recognizes in particular that there are lateral overhangs on these long sides, which increase from the outside in because the folding edges K no longer in line with the product contour between the longitudinal and transverse bag protrusions, but run out to the side.
  • the swivel bearings 31 a and 31 b need to be moved together a little with the help of the spindle 33, as a result of which the distance between the lower ends of the swivel levers, i.e. between the Folded edges 32 a and 32 b enlarged accordingly.
  • the folded edges are replaced by those with a right-angled tip, which has already completed the changeover of the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
EP96118740A 1995-11-27 1996-11-22 Sachet d'emballage et dispositif pour fermer un tel sachet Withdrawn EP0775640A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19544013 1995-11-27
DE19544013A DE19544013A1 (de) 1995-11-27 1995-11-27 Beutelverpackung

Publications (2)

Publication Number Publication Date
EP0775640A2 true EP0775640A2 (fr) 1997-05-28
EP0775640A3 EP0775640A3 (fr) 1997-07-09

Family

ID=7778434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118740A Withdrawn EP0775640A2 (fr) 1995-11-27 1996-11-22 Sachet d'emballage et dispositif pour fermer un tel sachet

Country Status (3)

Country Link
US (1) US6050056A (fr)
EP (1) EP0775640A2 (fr)
DE (1) DE19544013A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017202540A1 (de) 2017-02-16 2018-08-16 Robert Bosch Gmbh Verfahren zur Aufbringung einer Isolationsfolie auf ein prismatisches Zellengehäuse einer Batteriezelle und Batteriezelle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6182417B1 (en) * 1999-07-16 2001-02-06 Sig Pack, Inc. Angular bearing drive for package gussetting
US20030159401A1 (en) 2002-02-28 2003-08-28 Sorenson Richard D. Continuous motion sealing apparatus for packaging machine
SE524519C8 (sv) * 2002-12-13 2004-11-10 Tetra Laval Holdings & Finance Förfarande och anordning för vikning av botten av en förpackning samt till en förpackning med en sålunda vikt botten
JP5051504B2 (ja) * 2005-06-28 2012-10-17 株式会社Ｓｕｍｃｏ 容器包装装置
US7987651B2 (en) * 2007-09-17 2011-08-02 Lummus Corporation Automatic bale wrapping apparatus
US9352867B2 (en) * 2008-03-03 2016-05-31 H.W.J. Designs For Agribusiness, Inc. Bagging assembly
DE102008052633A1 (de) * 2008-10-22 2010-04-29 Khs Ag Verfahren und Vorrichtung zur Herstellung einer Verpackungseinheit
TWI520879B (zh) * 2012-12-28 2016-02-11 Chan Li Machinery Co Ltd Packaging bag folding and sealing device
US20210252771A1 (en) * 2018-06-15 2021-08-19 Gabriella BENASSI Automatic machine for coating panels with leather or fabrics

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625617A (fr) *
DE2352718A1 (de) * 1973-10-20 1975-04-30 Focke Pfuhl Verpack Automat Quaderfoermige packung fuer zigaretten
DE4134150A1 (de) * 1991-10-16 1993-04-22 Paper Converting Mach Gmbh Beutelverschluss
EP0649734A2 (fr) * 1990-06-02 1995-04-26 Elopak Systems Ag Emballage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1933180A (en) * 1931-12-07 1933-10-31 Meyer-Jagenberg Gunther Method and apparatus for forming closures for paper containers
US2179685A (en) * 1937-05-07 1939-11-14 Molins Machine Co Ltd Wrapping machine
US2925699A (en) * 1955-04-18 1960-02-23 Ozor Louis Device for intucking the mouths of paper bags
US3078633A (en) * 1960-02-19 1963-02-26 Stromberg Nils Erik Wrapper folding apparatus
US4872303A (en) * 1988-02-25 1989-10-10 Mid America Machine Corp. Bag top forming method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625617A (fr) *
DE2352718A1 (de) * 1973-10-20 1975-04-30 Focke Pfuhl Verpack Automat Quaderfoermige packung fuer zigaretten
EP0649734A2 (fr) * 1990-06-02 1995-04-26 Elopak Systems Ag Emballage
DE4134150A1 (de) * 1991-10-16 1993-04-22 Paper Converting Mach Gmbh Beutelverschluss

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017202540A1 (de) 2017-02-16 2018-08-16 Robert Bosch Gmbh Verfahren zur Aufbringung einer Isolationsfolie auf ein prismatisches Zellengehäuse einer Batteriezelle und Batteriezelle

Also Published As

Publication number Publication date
EP0775640A3 (fr) 1997-07-09
US6050056A (en) 2000-04-18
DE19544013A1 (de) 1997-05-28

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