EP1266828B1 - Verfahren und Vorrichtung zum Umhüllen von Stückguteinheiten mit einer hauben- oder Schlauchförmigen Stretchfolienumhüllung - Google Patents

Verfahren und Vorrichtung zum Umhüllen von Stückguteinheiten mit einer hauben- oder Schlauchförmigen Stretchfolienumhüllung Download PDF

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Publication number
EP1266828B1
EP1266828B1 EP02004253A EP02004253A EP1266828B1 EP 1266828 B1 EP1266828 B1 EP 1266828B1 EP 02004253 A EP02004253 A EP 02004253A EP 02004253 A EP02004253 A EP 02004253A EP 1266828 B1 EP1266828 B1 EP 1266828B1
Authority
EP
European Patent Office
Prior art keywords
film
roller
yoke
reefing
wrapping
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 - Fee Related
Application number
EP02004253A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1266828A1 (de
Inventor
Robert Gersmann
Wilhelm Dipl.-Ing Hagedorn
Hermann Dipl.-Ing Krumkamp
Klaus Dipl.-Ing Reuther
Werner Uthoff
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.)
Beumer Maschinenfabrik GmbH and Co KG
Original Assignee
Beumer Maschinenfabrik GmbH and Co KG
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
Priority claimed from DE20109692U external-priority patent/DE20109692U1/de
Application filed by Beumer Maschinenfabrik GmbH and Co KG filed Critical Beumer Maschinenfabrik GmbH and Co KG
Priority to DK02004253T priority Critical patent/DK1266828T3/da
Publication of EP1266828A1 publication Critical patent/EP1266828A1/de
Application granted granted Critical
Publication of EP1266828B1 publication Critical patent/EP1266828B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B65B9/13—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 preformed tubular webs being supplied in a flattened state
    • B65B9/135—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 preformed tubular webs being supplied in a flattened state for palletised loads

Definitions

  • the present invention relates to a method described in Oberberbegriff of ceremonies 1 for wrapping unit load units, In particular (i.a., arranged on a flat pallet) i.w. cuboid or cube-shaped Stacks of general cargo, each with a plastic, i.a. from a gusseted tube formed, hood or tubular stretch film whose circumference in the unstretched initial state (i.a., significantly) smaller than in the transversely jacketed sheath state is.
  • brackets in a plan view from above each one (i.a. isosceles) L-shape with a rounded central (stirrup) apex area, to which on both sides an i.w. straight outer side section connects, which continues from the I. W.
  • each bracket is arranged on the lifting frame, horizontally movable refining unit is associated with a reversibly drivable refining roller, the from a wegnere from the associated bracket outer rest position with vertical distance to the upper strap edge to the outside of her assigned hanger is approaching.
  • hood stretcher An early forerunner of today's so-called hood stretcher is in the early 70s in FR-A-2 No. 230,549, however, that device does not include any straps of the above (and in the Preamble of claim 4) described type and number had, but only at two each other opposite sides of the each to be wrapped cargo unit i.w. above the entire depth of the to be wrapped / packaged unit-load receiving plates (with bar-shaped trained head portion) had, which the supplied Include film tube, and a coating of the hood formed from it over to enveloping cargo should allow, so that an impact of the film only two (the four) sides, as was later also provided in US Pat. No. 4,050,219, but there instead of the laterally continuous mounting plates horizontally movable stand up narrow receiving fingers at four corners of a lifting frame.
  • hood in terms of its length so that they are just before the end of the wrapping process to the cargo or pallet base extends downwards so that the lower hood edge portion, yes - like the hood side walls in total - during the coating process i.a. considerably transversed, so at least 10% (i.a., significantly more) is stretched transversely, after sliding off the temples under elastic contraction with a so-called. "Understretch" to the cargo or Creates pallet base.
  • the present invention based on the object, the method described in the preamble of claim 1 Genus or the device described in the preamble of claim 4 Genre esp. To improve that the Foil during the entire coating process including the final coating phase itself at relatively high pressure on the hanger i.w. evenly from the straps slides off, so that u.a. also a satisfactory sub-stretch can be achieved.
  • the present invention is i.a. and in particular the knowledge that it is in use the above already i.w. and further described below in more detail bracket as multifunctional elements in carrying out the entire wrapping process is required on the one hand, which moved in the middle of the hanger when the film hit Refresh rollers each with vertical distance to the upper edge of the bracket to act on the bracket let, so that of the temples (i.w. stretch-free) recorded film on impact from the Reffrollen at the respective contact point between Reffrolle and foil by friction between Reffrolle and the (outside the film is to impress a downward traction, which is capable of the film also down to the side of the ironing area not acted upon by the reef roller to pull on / over the respective bracket.
  • each temple in a considerable distance below the upper temple edge provided, central recess each two immediately adjacent, superimposed rollers arranged with a horizontal axis of rotation, to which in each case the refresh roll of the assigned refining unit is to be approached from the outside in such a way that it centrally between the two bracket abutment rollers to bring this into abutment.
  • The may indeed - as stated - be useful when film on the hanger (especially the impact in the two laterally to the middle strap area extending strap-side areas is still supported by friction mitigation measures), however not helpful when removing the film from the temples during the stall process.
  • the bracket (at least in its middle region, and there at least on its upper side) is rounded, and where the i.w. flat strap support section in its central area below its upper edge portion is provided with a window-like recess.
  • the invention provides that the (Small) belt conveyor each with one in itself Closed flat belt are provided as a conveyor belt, which at its upper end of upper bracket edge portion and at its lower end by a lower deflecting element its outer being a strand on the outside and its inner another strand runs on the inside of the flat strap support section.
  • each strap has a width that is at least as large (preferably slightly larger) is like the width of the flat belt, and a height that is at least as large as the Thickness of the flat belt (preferably slightly larger) and the upper edge of the window-like Bracket recess runs horizontally and rounded down, she can do that form the lower deflection element for the flat belt (see also embodiment according to the 2 and 3), without the need to provide the strap with a roller assembly, for the desired goal of a perfect appearance on the one hand and a flawless Sliding the film when coating on the other hand to achieve.
  • Such a cylindrical lower deflection element per bracket can indeed in a further embodiment of the present invention as a roller rotatable about its longitudinal central axis ("lower roller”) be formed, but it can also rotatably in another embodiment be arranged in the bracket (and indeed in the recess), so that it is basically the same (deflection) function has as in the embodiment described above, in which the flat belt respectively at the rounded horizontal upper edge of the window-like Recess is deflected.
  • a variant of the above-described embodiment is that between the cylindrical lower deflecting element and the upper bracket edge one around its longitudinal central axis rotatable abutment roller is arranged with a horizontal axis of rotation, to which the Refrefolle of the assigned Reffech (when reefing and removing foil from the ironing) is under pressure.
  • This embodiment see also Fig.
  • the upper edge portion a bracket in the middle bracket region of a rotatable about its longitudinal central axis roller Be formed ("upper roll") whose length is suitably at least as large as the Width of the refill roll.
  • this upper roller forms the upper flat belt deflection, wherein the lower deflection can take place in the manner already described, preferred but by means of an under-roll (see also Fig. 6).
  • At least one Ironing roller can be designed as a reversible drivable (small) drum motor but is such an embodiment obviously considerably more expensive, so that i.a. will refrain from it, especially the aspired effects can also be achieved with much simpler means.
  • Fig. 1 shows in a simplified partial plan view exemplary essential components of a Apparatus for wrapping unit load units 1, namely cuboid or cube-shaped Piece goods stack with square cross-section, with one of plastic (eg / in. Polyethylene) existing, hood-shaped stretch film 2, which is a ready-wrapped (Packaged) unit load unit 1 each at its four side surfaces under it by transverse stretching embossed inner hoop stress completely enveloped, the cargo unit 1 at whose underside engages from the edges with a so-called. Understretch, and thus also this partially wrapped, and due to a hood-like design of the stretch film wrapping also the top of the cargo unit 1 completely covered.
  • plastic eg / in. Polyethylene
  • hood-shaped stretch film 2 which is a ready-wrapped (Packaged) unit load unit 1 each at its four side surfaces under it by transverse stretching embossed inner hoop stress completely enveloped, the cargo unit 1 at whose underside engages from the edges with a so
  • the device is designed with a gusseted tube (not shown)
  • Hose supply of plastic stretch film provided in folded flat Supply state is reeled to a hose reel, from which, if necessary Tube film is supplied.
  • the device therefore has a (not shown) i.w. out Support and deflection rollers existing feeder, by means of which in each case for wrapping one of the device supplied cargo unit 1 a hose section from Pulled off hose supply and the unit to be wrapped cargo unit 1 is supplied so that at the beginning of a packaging cycle, the free end portion of the film tube above the each to be wrapped cargo unit 1 freely depends.
  • the film tube Since the tubing is folded flat in the storage state, and the case Adhering to one another by "adhesion" to each other due to adhesion forces
  • the film tube must first be pre-opened suitably at its free end portion so that he can subsequently record and continue recording can be treated so that he finally pulled over the cargo unit 1 as a hood can be.
  • This pre-opening can, for example, by suction cups or the like. done that by moved to the outside of the free hose end portion, and / or e.g. by wedge-shaped, sword-like Vorötechnischsetti in the feed path of the film tube and, when putting the hose over these elements, ensure that that it is opened so far at least at its free end portion that suitable receiving elements can be moved into the free end of the hose.
  • a common, drivable lifting frame 14 bow-shaped receiving elements ("strap") 3, but during the further process sequence have several other functions, and therefore as “multi-functional elements” can be designated. They are not just for recording of the free hose end portion, for which they are diagonal in one to the longitudinal axis of symmetry moved together recording state in the free end of the tube, but then initially for the expansion-free spreading of the free hose end portion, from her recording position (i.a., synchronously) horizontally in a Spreading be driven apart.
  • the recorded by the brackets 3, unstretched spread film 2 between the outside of each bracket 3 and the refining roller 7 of this associated refining unit 5 is arranged and clamped so that the in Aufreffraum 8 driven Reffrolle 7 each under frictional film on the assigned her Can meet 3 bracket.
  • the Reffrollen 7 suitably have an elastic Coat 7 '.
  • Fig. 1 shows in its middle part over a direction indicated by dotted lines
  • Piece goods unit 1 whose longitudinal center axis is designated by M, four such bow-shaped Multifunction elements (bracket) 3 in their Aufsp Dahl- or Reffwolf.
  • bracket 3 In terms of on the cube-shaped configuration of the stack of pieces 1 with a square cross-sectional area are also the bracket 3 in each working position symmetrical to the longitudinal central axis M arranged, in their in Fig. 1 shown in solid lines Spreading and Auflage ein each in a corner of the recorded by them and stretched unexpanded film tube, as the film hood 4 on each to wrapping stack 1 is to be pulled.
  • the transverse seam 11 formed in the welding is in its middle region 11 'two layers and in its two outer regions 11 "respectively four layers.
  • the hood cover 10 has two mutually mirror-symmetrically opposite V-shaped or triangular multi-layer film areas 12, which are also known as film pockets can be designated, since they each to their the baselines of the rectangular Triangular forming edge 13 are open.
  • brackets 3 will be exemplified with reference to FIGS. 2-6 and 9, respectively described. All four brackets 3 are attached to a common lifting frame 14, at the beginning of each packaging cycle in an upper end position (starting position) is located, and controlled from this is lowered.
  • the upper edge portion 15 of each bracket 3 has one circular cross-section with a diameter d. He is centered on one in the top view I. W.
  • a reversibly driven, vertical (Small) belt conveyor 51 with a self-contained flat belt 52 as a conveyor belt, at its upper end from the upper bracket edge portion 15 and at its lower end is deflected by a lower deflecting element 53, so that its outer one strand 54 on the outside and its inside differently strand 55 on the inside the flat strap support portion 17 extends.
  • the endless flat belt 52 is formed by a below the upper bracket edge portion 15 in Support section 17 centrally provided, window-like recess 56 out (and only afterwards made endless), the downwardly rounded upper edge of the lower deflecting element 53 for forms the flat belt 52.
  • the f 'with a greater distance to the upper hoop edge 15' provided window-like recess 56 has a width g, which is slightly larger than the width h of the flat belt 52, and a height j which is slightly larger than the thickness k of the flat belt 52, the rest in Fig. 3 (in relation to the other dimensions) for better For clarity, thicker than shown in reality.
  • a cylindrically formed lower deflecting element 53 'but possibly also to its longitudinal central axis 58 may be attached to the support portion 17 of each bracket 3, if necessary also freely rotatable.
  • Fig. 6 is the lower deflection 53 'of Belt 52 respectively as the center roller 61 in the embodiment according to. Fig. 5a formed and arranged. But then in the upper edge region 15 of each bracket 3 in the up to the Upper bracket edge 15 'extending recess 50 of each bracket 3 has a second (upper) role Provided ("top roller") 20, which in the embodiment according to. Fig. 6 the same Diameter d as the lower roller 53 'has, and with an axial distance e so aligned above the lower roller 53 'is arranged, that a significant distance between the two Rollers 20, 53 'is present.
  • the drive is reversed: namely, the both rollers 20, 53 'driven by the belt 52, and this in turn by the refining 7th the respective refining unit 5 (possibly via the film 2), as this one below in more detail is described.
  • Fig. 7 shows in a highly schematic and with respect to FIG. 6 reduced representation one Section through a part of a bracket 3 gem.
  • the refining roller 7 is in the right part of Fig. 7 dot-dashed in its rest position located. You can from this according to the arrow 27 in a solid lines illustrated working position on the roller assembly 20, 53 'or their belt (flat belt) 52 are approached, and initially under clamping of the film. 2
  • Fig. 7 is the case in which the axis of rotation 28 of the refining roller 7 respectively centrally between the axes of rotation of the two rollers 20, 53 'is located, and both rollers 20, 53' the same Have diameter d.
  • the refining unit 5 counteracts the arrow 29 again moved outside to their rest position, and then - or already during this reversing process -
  • a in Fig. 8 top right with dash-dotted lines shown, raised Rest position, along a vertical guide 30, from which they at the appropriate time (at the latest shortly before the start of the stalling process) acc. the arrow 29 in turn to the bracket 3 is approached, but this time at the upper roller 20th
  • FIGS. 9 and 10 once again show a greatly enlarged one in comparison to FIG Representation of plan views of the lower left in Fig. 1 recognizable bracket 3.
  • the other three Brackets 3 are each formed in the same way.
  • Fig. 9 corresponds to the bracket training gem.
  • Figs. 2 to 5a, Fig. 10 the bracket training gem.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Buffer Packaging (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Wrappers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP02004253A 2001-06-13 2002-02-27 Verfahren und Vorrichtung zum Umhüllen von Stückguteinheiten mit einer hauben- oder Schlauchförmigen Stretchfolienumhüllung Expired - Fee Related EP1266828B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK02004253T DK1266828T3 (da) 2001-06-13 2002-02-27 Fremgangsmåde og apparat til omhylling af stykgodsenheder med en hætte- eller slangeformet strækfolieomhylling

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20109692U 2001-06-13
DE20109692U DE20109692U1 (de) 2001-06-13 2001-06-13 Vorrichtung zum Umhüllen von Stückgut mittels einer Stretchfolienhaube
DE10163728 2001-12-21
DE10163728 2001-12-21

Publications (2)

Publication Number Publication Date
EP1266828A1 EP1266828A1 (de) 2002-12-18
EP1266828B1 true EP1266828B1 (de) 2005-05-04

Family

ID=26010860

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02004253A Expired - Fee Related EP1266828B1 (de) 2001-06-13 2002-02-27 Verfahren und Vorrichtung zum Umhüllen von Stückguteinheiten mit einer hauben- oder Schlauchförmigen Stretchfolienumhüllung
EP02004569A Expired - Lifetime EP1266829B9 (de) 2001-06-13 2002-02-27 Verfahren zum Umhüllen von Stückgut, insb. Stückgutstapeln, mit Stretchfolie

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02004569A Expired - Lifetime EP1266829B9 (de) 2001-06-13 2002-02-27 Verfahren zum Umhüllen von Stückgut, insb. Stückgutstapeln, mit Stretchfolie

Country Status (5)

Country Link
EP (2) EP1266828B1 (es)
AT (1) ATE283794T1 (es)
DE (3) DE50201655D1 (es)
DK (2) DK1266829T3 (es)
ES (2) ES2233726T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3215421B1 (en) 2014-11-04 2020-03-04 Frank Bruhn APS Horizontally arranged wrap packaging system

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042346A1 (en) * 2003-11-04 2005-05-12 Roboconsult Aps Apparatus and method for building and wrapping a load
ITBO20060096A1 (it) * 2006-02-10 2007-08-11 Aetna Group Spa Apparecchiatura per la copertura di gruppi di prodotti con film tubolare estensibile
EP2060492B1 (de) 2007-11-16 2011-11-30 Msk-Verpackungs-Systeme Gesellschaft Mit Beschränkter Haftung Vorrichtung zum Uberziehen einer Schlauchfolie bzw. einer Folienhaube über einen Gutstapel
ES2594417T5 (es) 2008-06-07 2023-05-03 Msk Emballage S A R L Dispositivo y procedimiento para calar una película tubular sobre una pila de productos
DK2371716T3 (da) 2008-12-19 2012-09-24 Msk Verpackung Syst Gmbh Fremgangsmåde og indretning til overtrækning af en slangefolie eller en foliekappe over en materialestabel
DE102011000205B4 (de) 2011-01-18 2014-07-17 Illinois Tool Works Inc. Vorrichtung und Verfahren zum Reffen eines Schlauchfolienabschnitts
DE102011075451B4 (de) 2011-05-06 2014-05-08 Illinois Tool Works Inc. Verfahren und Vorrichtung zum Aufreffen eines Schlauchfolienabschnitts auf die Refffinger einer Verpackungsanlage
FI124180B (fi) 2011-09-30 2014-04-15 Illinois Tool Works Menetelmä käärintäkoneen kuljetustilaan saattamiseksi sekä käärintäkone
DE102011120459A1 (de) 2011-12-07 2013-06-13 Beumer Gmbh & Co. Kg Verfahren zum Umhüllen eines Stückgutstapels und damit gebildete Verpackungseinheit
FI125661B (en) 2012-09-07 2015-12-31 Signode Int Ip Holdings Llc Method and apparatus for positioning corner guards on a load
FI125411B (en) 2013-10-31 2015-10-15 Signode Internat Ip Holdings Llc Method and fasteners for securing the end of a wrapping film web to a packaging machine and packaging machine
DE102014106365B4 (de) 2014-05-07 2017-06-14 Lachenmeier Aps Verpackungsverfahren zum Verpacken eines Gutes
DE102015101489A1 (de) 2015-02-02 2016-08-04 Signode Industrial Group Llc Verpackungsvorrichtung und Verfahren zum Betrieb derselben
EP3398861A1 (de) * 2017-05-04 2018-11-07 Erin Intellectual Property Limited Verfahren und computerprogramm zum umhüllen eines gutstapels sowie verpackungseinheit

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FR2230549A1 (en) * 1973-05-23 1974-12-20 Applic Thermiques Machine for packing an object in a plastic sleeve - compresses sleeve into bellows form before passing object through
FR2473985A1 (fr) * 1980-01-17 1981-07-24 Thimon Machine d'emballage d'une charge dans un troncon de gaine en un materiau souple
AU553073B2 (en) * 1982-04-23 1986-07-03 Technosearch Pty. Limited Stretch wrapping apparatus
DE58900904D1 (de) 1988-06-03 1992-04-09 Beumer Maschf Bernhard Verfahren und vorrichtung zum umhuellen von stueckgut, insbesondere stueckgutstapeln, mit einer stretchfolienhaube.
DE3832557A1 (de) * 1988-09-24 1990-04-05 Beumer Maschf Bernhard Verfahren und vorrichtung zum bilden von mit kunststoffolie umhuellten verpackungseinheiten sowie hiermit hergestellte verpackungseinheit
DE3917110A1 (de) 1989-05-26 1990-11-29 Beumer Maschf Bernhard Verfahren und vorrichtung zum umhuellen von stueckgut mit einer stretchfolienhaube und hiermit zu bildende verpackungseinheit
DE4019127C2 (de) 1990-06-15 1994-11-17 Beumer Maschf Bernhard Verfahren und Vorrichtung zum Umhüllen von Stückgut
DE4211297A1 (de) 1992-04-03 1993-10-14 Moellers Maschf Gmbh Vorrichtung und Verfahren zur Bildung eines Gutstapels
DE4235409C1 (de) * 1992-10-21 1994-01-13 Moellers Maschf Gmbh Verfahren und Vorrichtung zum Umhüllen eines Stapels mittels Stretchfolie
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3215421B1 (en) 2014-11-04 2020-03-04 Frank Bruhn APS Horizontally arranged wrap packaging system
EP3215421B2 (en) † 2014-11-04 2023-08-02 Tentoma A/S Horizontally arranged wrap packaging system

Also Published As

Publication number Publication date
ES2233726T3 (es) 2005-06-16
DE50201655D1 (de) 2005-01-05
EP1266828A1 (de) 2002-12-18
DE10208339A1 (de) 2002-12-19
EP1266829B9 (de) 2005-04-06
DK1266828T3 (da) 2005-09-05
EP1266829B1 (de) 2004-12-01
ES2240588T3 (es) 2005-10-16
ATE283794T1 (de) 2004-12-15
DK1266829T3 (da) 2005-04-11
DE50202970D1 (de) 2005-06-09
EP1266829A1 (de) 2002-12-18

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