EP0822060B1 - Verfahren und Vorrichtung zum Aufrichten flach gefalteter schlauchförmiger Zuschnitte - Google Patents

Verfahren und Vorrichtung zum Aufrichten flach gefalteter schlauchförmiger Zuschnitte Download PDF

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Publication number
EP0822060B1
EP0822060B1 EP97112495A EP97112495A EP0822060B1 EP 0822060 B1 EP0822060 B1 EP 0822060B1 EP 97112495 A EP97112495 A EP 97112495A EP 97112495 A EP97112495 A EP 97112495A EP 0822060 B1 EP0822060 B1 EP 0822060B1
Authority
EP
European Patent Office
Prior art keywords
roller
erector
packaging container
blank
blanks
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.)
Expired - Lifetime
Application number
EP97112495A
Other languages
English (en)
French (fr)
Other versions
EP0822060A1 (de
Inventor
Mikael Andersson
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP0822060A1 publication Critical patent/EP0822060A1/de
Application granted granted Critical
Publication of EP0822060B1 publication Critical patent/EP0822060B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/80—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
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/22—Feeding individual bags or carton blanks from piles or magazines by rollers
    • B65B43/225—Feeding individual bags or carton blanks from piles or magazines by rollers specially adapted for carton blanks
    • 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
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/22—Feeding individual bags or carton blanks from piles or magazines 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
    • 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
    • B65B43/265—Opening, erecting or setting-up boxes, cartons or carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
    • B31B2100/0024—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed having all side walls attached to the bottom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/80—Pneumatically
    • B31B50/804—Pneumatically using two or more suction devices on a rotating element
    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles

Definitions

  • the present invention relates to a method of erecting flat-laid packaging container blanks in that the flat-laid blanks are fed one-by-one into an apparatus which fixedly retains one of the panels of the packaging container blank, and in that the blank, after erection, is conveyed out of the apparatus by means of a carrier chain.
  • the present invention also relates to an apparatus for erecting flat-laid packaging container blanks, comprising a feeder device for the blanks, which feeds the blanks one-by-one into the apparatus, the apparatus fixedly retaining the blank, and also a carrier chain designed to convey the erected packaging container blanks out from the apparatus.
  • the packaging container blanks consist of a sheet of suitable size for realising a package of a certain volume.
  • the sheet has fold lines, so-called crease lines, in order to facilitate the reforming of the sheet into a finished packaging container.
  • the sheet is further double-folded and glued, so that the packaging container blank constitutes a capsule which is open at both ends.
  • the packaging container blanks are delivered flat-laid to a filling and packing machine and are erected in the filling machine.
  • the packaging container blanks are normally stacked in a magazine intended for this purpose in the filling machine and are fed therefrom, one-by-one, into an apparatus which erects the blanks to form open capsules.
  • the open capsules are conveyed further, normally in a carrier chain, to a mandrel wheel. On the mandrel wheel, there are disposed a number of mandrels which are each intended to receive an erected packaging container blank which has been sealed for obtaining a package bottom.
  • the bottom-sealed packaging container blanks are conveyed further, filled and top-sealed to form a finished packaging container, either for a gable-top package or a parallelepipedic packaging container.
  • the commonest method is to employ two pivot arms with suction cups connected to a vacuum source, the pivot arms fixedly retaining two sides of the packaging container blank and, by a relative movement between the two pivot arms, the flat-laid packaging container blank is opened.
  • a method and an apparatus according to the respective preamble of claim 1 and claim 2 are known from CH-A-324 544.
  • One object of the present invention is to realise an apparatus for erecting flat-laid packaging container blanks which is mechanically simple and which requires no accurate adjustment in order to operate successfully. As a result of its simple mechanical make-up, the apparatus will be more economical and require fewer spare parts.
  • the erector apparatus should also, in a simple manner, be adaptable to different packaging volumes.
  • a further object of the present invention is that the apparatus according to the invention is capable of operating more rapidly and thereby erecting more packaging container blank per unit of time than prior art apparatuses and methods.
  • Figs. 1 and 2 show an apparatus 1 according to the invention in two different embodiments.
  • the apparatus 1 includes a feeder device 2 which is disposed to feed flat-laid packaging container blanks 3 to the apparatus 1 so that the packaging container blanks 3 enter the apparatus 1 one-by-one.
  • the flat-laid packaging container blanks 3 come from a magazine 4 where a large number of blanks 3 are stored in order to be fed in sequence into the apparatus 1.
  • the flat-laid packaging container blanks 3 may have the appearance as shown in Fig. 5 and consist of a flat-laid capsule with four sides or panels 5, 6, 7, 8 which are defined by fold lines or crease lines 9, the crease lines 9 facilitating forming of the packaging container blank 3 into a finished packaging container.
  • the panels 5, 6, 7 and 8 constitute the side surfaces of the finished packaging container.
  • the packaging container blank 3 is fed into the apparatus 1 with one of the corners 10 or 11 leading.
  • the packaging container blank 3 constitutes a capsule which is open at both ends 12 and 13, and the distance between the ends 12 and 13 constitutes the height of the packaging container blank 3, which varies depending upon what packaging volume the finished packaging container is to have.
  • the apparatus 1 further includes an erector roller 14 which is shown as an individual part in Fig. 3.
  • the erector roller 14 has, on its axial surface 15, a number of holes which constitute suction cups 16.
  • the suction cups 16 are axially connected to holes 17 provided in the radial surface 18 of the erector roller 14. All suction cups 16 and radial holes 17 are connected to a vacuum source (not shown).
  • the suction cups 16 on the axial surface 15 of the erector roller 14 are distributed in patterns on the surface so that they form groups.
  • the number of suction cups 16 in the axial direction should cover the height, i.e. the distance between the ends 12 and 13, of the packaging container blank 3 of the largest packaging container blank 3 for which the apparatus 1 may be employed.
  • the number of suction cups 16 about the circumference of the erector roller 14 should cover the width of one panel 5, 6, 7, 8 of the packaging container blank 3.
  • the number of suction cups 16 about the circumference has its correspondence in the same number of holes 17 on the radial surface of the erector roller 14.
  • the suction cups 16 have a pattern of three by four and this pattern group 19 is repeated three times along the axial surface 15 of the erector roller 14.
  • the erector roller 14 in Fig. 1 has four such pattern groups 19 and, in Fig. 2, the groups are three in number.
  • the number of pattern groups may vary between two and five, preferably three, and depends, among other things, on the thickness of the packaging material. A thinner packaging material may be subject to an undesirable residual bending if the erector roller 14 is of slight diameter and has few pattern groups 19. If the erector roller 14 is of large diameter and has a larger number of pattern groups 19, this will reduce the efficiency of the apparatus 1.
  • an air deflector 20 which is shown in detail in Fig. 4.
  • the air deflector 20 tightly surrounds the axial surface 18 of the erector roller 14.
  • the air deflector 20 is stationary, while the erector roller 14 rotates.
  • the length of the groove 21 covers the greater part of the holes 17 in two pattern groups 19.
  • a counter pressure roller 22 is disposed against the surface 15 of the erector roller 14, the direction of movement of the counter pressure roller being opposed to that of the erector roller 14, while both of the rollers 14 and 22 operate at the same peripheral speed.
  • the length of the counter pressure roller 22 must be at least the same as the length of the erector roller 14.
  • Both the surface 15 of the erector roller 14 and the corresponding surface on the counter pressure roller 22 may be rubber-clad in order to afford a gentler treatment of the packaging container blanks 3.
  • the apparatus 1 further includes a carrier chain 23 for conveying the erect packaging container blanks 3 out from the apparatus 1.
  • the carrier chain may consist of an endless conveyor belt or chain on which are provided a number of carriers 24.
  • the carriers 24 each accommodate one packaging container blank 3, are open towards the erector roller 14 and surround the erector packaging container blanks 3 on three sides.
  • the carrier chain 23 is disposed to move tangentially in relation to the erector roller 14.
  • a flat-laid packaging container blank 3 is fed out from the magazine 4 by means of the feeder device 2.
  • the packaging container blank 3 is fed out such that the corner 10 first leaves the magazine 4.
  • the blank 3 is fed straight into the space between the erector roller 14 and the counter pressure roller 22.
  • the space between the rollers 14 and 22 is adjusted such that the packaging container blank 3 is held fast against the erector roller 14 without the blank 3 being deformed.
  • By rubber-cladding one or both of the surfaces 15 on the rollers 14, 22, a gentler handling of the packaging container blanks 3 will be obtained. It must also be ensured that both of the rollers 14, 22 run at the same peripheral speed. Deviations in peripheral speed may give rise to scratch marks on the packaging container blanks 3.
  • the suction cup pattern 19 which is now located in register with the panel 8 is activated. All of the suction cups 16 in the pattern must be covered by the panel 8.
  • the suction cup pattern 19 is activated in that the groove 21 of the air deflector 20 exposes the holes 17 in the relevant pattern group 19. In such instance, the panel 8 will be retained and bent towards the surface 15 of the erector roller 14.
  • the panel 7 lying ahead of the panel 8 is free and not retained against the surface 15 of the erector roller 14, so that, when the erector roller 14 moves towards the counter pressure roller 22, the corner 10 will be opened because of the bending around the erector roller 14.
  • an excessively large diameter of the erector roller 14 would give too little bending of the panel 8, for which reason the corner 10 will not open sufficiently to erect the packaging container blank 3.
  • a diameter encompassing between two and five pattern groups 19 is appropriate.
  • the opened corner 10 will strike against a side 25 of a carrier 24 in the carrier chain 23.
  • the movement of the corner 10 is arrested and the packaging container blank 3 raises itself completely in its carrier 24.
  • the groove 21 of the air deflector 20 is placed such that the holes 17 will once again be covered and deactivated when they are tangential to the direction of movement of the carrier chain 23.
  • a completely erect packaging container blank 3 is now released from the surface of the erector roller 14 and is surrounded on three sides by a carrier 24. In that a panel 8 is held bent when the blank 3 is erected in the carrier 24, double folding of the packaging container blank 3 is prevented, i.e. that the blank 3 is folded over into a new flat-laid state.
  • each carrier 24 Since the distance between each carrier 24 is less than the distance between two packaging container blanks 3 on the surface 15 of the erector roller 14 (in reality between 15 and 40 per cent less distance), the carrier chain must thus be advanced at a correspondingly lower speed (i.e. 15 to 40 per cent) than the peripheral speed of the erector roller 14).
  • the apparatus 1 is readily adjustable so that, for smaller volumes which have a lower blank height, one or more rows of suction cups 16 are closed along the circumference of the erector roller 14, so that all suction cups 16 in a pattern 19 are always completely covered by one panel 8.
  • the present invention realises a method of erecting flat-laid packaging container blanks 3 and an apparatus 1 therefor, which displays a simple mechanical construction and which is readily adjustable for different packaging volumes.
  • the apparatus 1 requires no adjustment and experiments have demonstrated that it is dependable and operationally reliable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Making Paper Articles (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Claims (6)

  1. Verfahren zum Aufrichten von flach gelegten Zuschnitten (3) für Verpackungsbehälter. durch Zuführen der Zuschnitte (3) für Verpackungsbehälter nacheinander in eine Vorrichtung (1), welche eine der Flächen (8) des Zuschnitts (3) für einen Verpackungsbehälter erfasst und fest hält, sowie durch Weiterleitung des Zuschnitts (3) nach dessen Aufrichten aus der Vorrichtung (1) mittels einer Tragekette (23), bei welchem die Haltevorrichtung (1) aus einer Aufrichtrolle (14) besteht, welche die Fläche (8) mit Hilfe von Saugnäpfen (16) fest hält, dadurch gekennzeichnet, dass der Zuschnitt (3) für einen Verpackungsbehälter dazu veranlasst wird, der Fläche (15) der Aufrichtrolle (14) zu folgen, wobei er in einen Schlitz zwischen der Rolle (14) und einer Gegendruckrolle (22) gezwungen wird, und wobei die Faltung der Fläche (8) entlang der Fläche (15) der Aufrichtrolle (14) zum Öffnen einer Ecke (10) des Zuschnitts führt.
  2. Vorrichtung (1) zum Aufrichten von Zuschnitten (3) für Verpackungsbehälter, welche eine Zuführeinrichtung (2) zum Zuführen der Zuschnitte (3) aufweist, welche die Zuschnitte (3) nacheinander in die Vorrichtung (1) zuführt, wobei diese Vorrichtung (1) den Zuschnitt (3) fest hält, und ferner eine Tragekette (23), die zum Weiterleiten der Zuschnitte (3) für Verpackungsbehälter aus der Vorrichtung (1) angeordnet ist, wobei die Vorrichtung (1) eine Aufrichtrolle (14) mit einer Anzahl Saugnäpfe (16) entlang ihrer Fläche (15) aufweist, die so angeordnet sind, dass sie eine Fläche (8) des Zuschnitt (3) für einen Verpackungsbehälter hält, dadurch gekennzeichnet, dass eine Gegendruckrolle (22) in der Weise angeordnet ist, dass der Zuschnitt (3) in einen Schlitz zwischen der Aufrichtrolle (14) und der Gegendruckrolle (22) gezwängt wird.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Anzahl von Gruppen (19) auf der Fläche (15) der Aufrichtrolle (14) zwischen zwei und fünf beträgt.
  4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Aufrichtrolle (14) und die Gegendruckrolle (22) in der Weise angeordnet sind, dass sie mit derselben Umfangsgeschwindigkeit umlaufen.
  5. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Saugnäpfe (16) in axialer Richtung miteinander verbunden sind, wobei sie an eine Unterdruckquelle über ein Loch (17) auf der radialen Fläche (18) der Aufrichtrolle (14) angeschlossen sind.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass eine axiale Reihe von Saugnäpfen (16) mittels eines Luftleitblechs aktiviert wird, welches an dem Ende der Aufrichtrolle (14) angeordnet ist, an dem die Löcher (17) ausgebildet sind.
EP97112495A 1996-07-31 1997-07-22 Verfahren und Vorrichtung zum Aufrichten flach gefalteter schlauchförmiger Zuschnitte Expired - Lifetime EP0822060B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9602904A SE507722C2 (sv) 1996-07-31 1996-07-31 Sätt och anordning för att resa flatlagda förpackningsbehållarämnen
SE9602904 1996-07-31

Publications (2)

Publication Number Publication Date
EP0822060A1 EP0822060A1 (de) 1998-02-04
EP0822060B1 true EP0822060B1 (de) 2001-11-07

Family

ID=20403507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112495A Expired - Lifetime EP0822060B1 (de) 1996-07-31 1997-07-22 Verfahren und Vorrichtung zum Aufrichten flach gefalteter schlauchförmiger Zuschnitte

Country Status (9)

Country Link
EP (1) EP0822060B1 (de)
JP (1) JP3887466B2 (de)
AT (1) ATE208263T1 (de)
AU (1) AU719983B2 (de)
BR (1) BR9704204A (de)
CA (1) CA2211912A1 (de)
DE (1) DE69707987T2 (de)
NO (1) NO314891B1 (de)
SE (1) SE507722C2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013105260A1 (de) * 2013-05-23 2014-11-27 Sig Technology Ag Vorrichtung und Verfahren zum Auffalten von Packungsmänteln
CN113879621B (zh) * 2021-10-31 2024-05-14 山东森焱包装印刷有限公司 用于纸箱展开及下端面封箱的自动折盖封箱装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH316779A (de) * 1952-11-27 1956-10-31 Jagenberg Werke Ag Verfahren und Vorrichtung zum Vereinzeln, Öffnen und Weiterbefördern von schlauchförmigen Zuschnitten
CH324544A (fr) * 1954-04-08 1957-09-30 Rose Brothers Ltd Dispositif destiné à alimenter des appareils en récipients en carton pliés à plat
GB8924078D0 (en) * 1989-10-26 1989-12-13 Tetra Pak Ab Continuous to intermittent feeding interface

Also Published As

Publication number Publication date
AU719983B2 (en) 2000-05-18
SE9602904D0 (sv) 1996-07-31
AU3237197A (en) 1998-02-05
ATE208263T1 (de) 2001-11-15
SE9602904L (sv) 1998-02-01
DE69707987T2 (de) 2002-04-04
MX9705761A (es) 1998-08-30
BR9704204A (pt) 1998-12-29
SE507722C2 (sv) 1998-07-06
EP0822060A1 (de) 1998-02-04
DE69707987D1 (de) 2001-12-13
CA2211912A1 (en) 1998-01-31
NO973478L (no) 1998-02-02
JP3887466B2 (ja) 2007-02-28
NO314891B1 (no) 2003-06-10
JPH1077006A (ja) 1998-03-24
NO973478D0 (no) 1997-07-29

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