EP1086893A2 - Dispositif compact et reductible combiné pour emballer à l'aide d'un manchon plastique - Google Patents

Dispositif compact et reductible combiné pour emballer à l'aide d'un manchon plastique Download PDF

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Publication number
EP1086893A2
EP1086893A2 EP00120739A EP00120739A EP1086893A2 EP 1086893 A2 EP1086893 A2 EP 1086893A2 EP 00120739 A EP00120739 A EP 00120739A EP 00120739 A EP00120739 A EP 00120739A EP 1086893 A2 EP1086893 A2 EP 1086893A2
Authority
EP
European Patent Office
Prior art keywords
hood
combined
support frame
tubular material
hooding
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
EP00120739A
Other languages
German (de)
English (en)
Other versions
EP1086893B1 (fr
EP1086893A3 (fr
Inventor
Franco Tacchini
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.)
Officina Meccanica Sestese SpA
Original Assignee
Officina Meccanica Sestese SpA
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 Officina Meccanica Sestese SpA filed Critical Officina Meccanica Sestese SpA
Priority to DK00120739T priority Critical patent/DK1086893T3/da
Publication of EP1086893A2 publication Critical patent/EP1086893A2/fr
Publication of EP1086893A3 publication Critical patent/EP1086893A3/fr
Application granted granted Critical
Publication of EP1086893B1 publication Critical patent/EP1086893B1/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
    • 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
    • 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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/066—Mobile frames, hoods, posts or the like

Definitions

  • the present invention relates to a wrapping hooding machine for packaging by means of a plastic sleeve.
  • it relates to a combined hooding apparatus.
  • a hooding apparatus is an apparatus which is widely used in specific fields of the wrapping sector in order to arrange bags or hoods of heat-shrinkable plastic material around loads which are supported on platforms or pallets.
  • a combined hooding machine is normally composed of a support bridge on which various movable devices are mounted, said devices being intended to pick up, open and fit onto the load a hood of heat-shrinkable plastic material; on the same support bridge there is also mounted an annular structure on which a circle group of burners is arranged, said burners being displaced, at a suitable time, around the load to be wrapped so as to apply uniformly the heat for heating the hood.
  • the circle group of burners lowers to the base of the load, where the open mouth of the hood is arranged, and starts to exert its heating action (expulsion of hot air up to 300°C) as it gradually rises up to the top of the hood.
  • the annular structure for heating the hood must have minimum dimensions such that, when added to the typical dimensions of the bridge-type support structure, they result in the overall dimensions of the apparatus being greater than the maximum volume which can be transported on standard vehicles or in standard containers.
  • the annular structure is guided during its vertical translatory movement at the four corners of a quadrilateral by means of suitable guiding and raising systems which are housed in four vertical columns of the bridge frame which thus inevitably has considerable dimensions.
  • the hooding apparatus must be completely assembled in the production workshop and then for the most part disassembled so as to be able to load it onto a transportation vehicle and then reassemble it at the purchaser's premises.
  • the hood of heat-shrinkable plastic material is formed (from a tubular material folded in pleated fashion and unwound from commercially available reels) and delivered at the top of the hooding machine.
  • the mechanisms for opening the tubular material and for performing welding and cutting and fitting of the hood are therefore all located in the top part of the apparatus, where the heat produced during heat-shrinking has a significant effect.
  • a protective screen is arranged in the top part of the support structure, as has already been proposed, these drawbacks are not entirely overcome; moreover, in this way, the heat is unable to be dispersed naturally upwards and therefore tends to remain and accumulate in the wrapping zone, thereby modifying the working conditions in an undesirable manner.
  • the object of the present invention is to solve the abovementioned problems associated with the dimensions and the presence of high temperatures in combined hooding machines.
  • the aim is to provide a combined hooding machine which is both compact and has a volume which can be further reduced easily, quickly and without the need for major disassembly of vital components of the apparatus, so as to allow transportation and assembly thereof also by personnel who are not highly specialised.
  • the aim is to provide a combined hooding machine in which the drawbacks arising from the supply of considerable quantities of heat to the main movement mechanisms and to the plastic material of the hoods being formed are overcome.
  • a hooding apparatus substantially as described in the accompanying claims, i.e. an apparatus in which the annular structure, on which the circle group of burners is arranged, is pivotably mounted on a support frame with reduced dimensions.
  • the device for conveying and supplying the hood which is separate from the fitting mechanism, is located on the side of the frame, in a position protected from the heat generated during the heating process, and supplies the hood to the delivery point only at the appropriate moment.
  • the combined hooding machine according to the invention will now be described in detail, illustrating also operation thereof, in chronological order of the hood processing steps.
  • a combined hooding machine is composed of a support structure 1, which is substantially in the form of an overturned L and which supports reels B of heat-shrinkable tubular material T, a line 2 for supplying and delivering a hood, a vertically displaceable annular structure 3 on which a series of burners 4 and a device for opening and fitting the hood are mounted.
  • the support frame 1 is arranged in the vicinity of a distribution line 5 - or a simple support base - on which a load 100 of varying nature, positioned on a pallet and intended to be wrapped, is transported.
  • the hood C is formed from the tubular material T wound on a reel B.
  • the tubular material is folded in pleated fashion so that unfolding and opening thereof may be easily achieved using automatic systems.
  • the tubular material therefore has at least two pleated lips which extend along each of the two side edges.
  • both a guiding and gripping system and a hood cutting and welding device are provided at the bottom of the frame 1.
  • the guiding and gripping system comprises (Figs. 2-4) a guiding assembly, consisting of a pair of rails 10a and 10b with a U-shaped cross-section and a pair of strip-like guides 11, and a gripping assembly comprising a gripping fork 12.
  • This system is dual so as to be able to act on both edges of the pleated tubular material T (only one of which, for the sake of simplicity, is shown in Figs. 3A and 4).
  • the U-shaped rails 10a and 10b are mounted parallel to each other, in a floating manner, so as to be able to move towards and away from each other as required.
  • the two pleated lateral lips T1 and T2 of the tubular material T are inserted inside the U-shaped rails, for example manually.
  • the rails 10a and 10b therefore have the function of vertically guiding the pleated tubular material, keeping the two lips T1 and T2 separate and at a distance.
  • the strip-like guides 11 are arranged in pairs on either side of the tubular material (Figs.
  • the strip-like guides 11 are also preferably mounted on a floating system 11a able to absorb the inevitable irregularities in the travel movement of the tubular material T, without snatching or jamming occurring.
  • the gripping fork 12 has three prongs 12a, 12b and 12c.
  • the central prong 12b is apt to be inserted between the two U-shaped rails 10a and 10b, if necessary displacing them and moving them away during insertion.
  • the two external prongs 12a and 12c are intended to be arranged adjacent to the external surfaces of the two rails 10a and 10b, respectively.
  • Facing pistons 13a and 13b are also provided between the prongs 12a-12c and are able, by means of a suitable pneumatic or hydraulic circuit (not shown), to protrude towards each other from their seats and grip the lip of tubular material T which is arranged between them.
  • the fork 12 is displaced laterally, as shown in Figs. 3A and 4, in a position which does not interfere either with the rails 10a, 10b or with the pleated tubular material T.
  • the fork 12 is inserted (arrow A1) between the rails 10a and 10b so as to be inserted correctly also between the two folds T1 and T2 of the tubular material T kept separate.
  • the lips of the folds T1 and T2 which by nature are somewhat flimsy, are prevented from being folded incorrectly, hindering correct gripping by the fork 12.
  • the fork is raised (arrow A2) by a sufficient amount to come into direct contact with the lips of the folds T1 and T2 above the rails (position referenced by 12' in Fig. 4).
  • the pressure circuit is able to activate the pistons 13a and 13b so as to grip, respectively, the lips T1 and T2 (Fig. 3B).
  • the two gripping forks 12 are drawn upwards in parallel fashion by means of a movement system which is schematically illustrated in the form of a chain 14 endlessly mounted around pulleys 15.
  • the gripping forks 12 unwind a section of tubular material T having a predefined length equal to the travel movement performed by the said forks. Once the gripping forks 12 have reached the desired height on the frame 1 (Fig. 5), the tubular material is cut and welded at the bottom so as to form a hood C.
  • a cutting and welding device 16 is provided, said device consisting of two oscillating facing blocks 16a and 16b on which mutually interacting cutting blades 17a and 17b and welding bars 18a and 18b are mounted.
  • the blocks 16a and 16b cut and weld the tubular material T so as to produce a separate hood C.
  • more than one guiding assembly for the tubular material is provided, so as to be able to handle simultaneously two or more reels of pleated tubular material which are different, for example, in terms of the material or transverse dimensions.
  • a further assembly of strip-like guides 111, mounted on a floating system 111a, and associated U-shaped rails (not shown) are mounted on the same drawer-type support S, in common with the guiding assembly previously described.
  • a second pleated tubular material T' supplied from a second reel B' leads to the strips 111 and to the associated rails.
  • the drawer-type support S is displaceable horizontally on suitable guides S1. In this way it is possible to position a given guiding assembly, carrying the corresponding tubular material which is intended to be used at that time for the specific wrapping required, along the working plane of the gripping fork 12 and the cutting and welding device.
  • the reels may be mounted at a certain distance from the support frame of the hooding machine (Fig. 5), so as to define a sufficient space where the operator may work to insert manually the pleated tubular material into the corresponding guiding assemblies.
  • the reels are preferably mounted on suitable supports arranged directly next to the frame of the hooding machine (Fig. 1), but the drawer-type support S may be displaced (in the direction of the arrow F) by an amount sufficient to extract it from the zone obstructed by the reels so that there may be easy access thereto.
  • a handle S 2 is provided, by means of which locking members of the drawer (not shown in detail) may be released and at the same time a pulling force applied so as to pull out the drawer towards oneself.
  • the parts described above together form a system for forming and supplying the hood C.
  • the hood C is further conveyed by the gripping forks 12 along the horizontal top section of the frame 1 (Fig. 7) and then transferred vertically downwards so as to be brought to a delivery member with the lips of the folds T1 and T2 fully open and extended, ready to be gripped by the hood opening and fitting device.
  • the delivery point is situated just underneath the horizontal top section of the frame 1; if, on the other hand, the hood opening and fitting device is of the pin-type (Fig. 1), which is located in the bottom part of the annular structure 3, the delivery point is located slightly further down, namely by an amount sufficient for transferring the lips of the hood underneath the annular structure when it is located in its raised position (solid lines in Fig. 1).
  • the annular structure 3, to which the burners 4 for the production of hot air are fixed, is mounted on a movement system which guides and controls displacement thereof in a vertical, direction over the height of the load to be wrapped.
  • the annular structure 3 is displaced downwards, so that the hood itself may be fitted onto the load.
  • the fitting devices for example the gripping arms 21-24, release the lips of the hood and the operation of heating the heat-shrinkable hood may begin, starting up the burners 4 and gradually displacing the annular structure upwards at a speed which depends on the characteristics of the hooding machine and the hood.
  • the gripping fork 12 is brought back by the chain 14 into its base position, where it is ready to perform subsequent gripping and drawing of another section of tubular material T.
  • the annular structure 3 is hung in a barycentric position from a first raising chain 31 and is pivotably mounted, by means of a pivot pin 33, on a guide bracket 32 which is vertically displaceable.
  • the guide bracket 32 is slidable along a vertical column of the support frame 1 by means of suitable sliding guides and a second raising system.
  • this second raising system also consists of a chain 33 which is attached to the bracket 32 and endlessly mounted around a driving pulley and a driven pulley.
  • the chains 31 and 33 are driven, preferably by means of the same motor, in a synchronised manner, so as to lower and raise at the same time the two points of attachment of the annular structure 3 which is thus able to be displaced vertically so as to perform its function.
  • the hooding machine according to the invention When the hooding machine according to the invention must be reduced in size for transportation, it is sufficient to slacken the barycentric fastening chain 31, while keeping the pivoting pin 34 at a standstill, so as to allow vertical "stowing down” of the annular structure (indicated by 3' in the stowed down position).
  • the bracket 32 is positioned at a height sufficient to allow the annular structure 3 to be tilted down entirely without this interfering with the ground.
  • the apparatus according to the invention therefore, overcomes in a brilliant manner the drawbacks of the known art.
  • the apparatus may be provisionally reduced in size, without having to disassemble complex and vital parts which are difficult to adjust, resulting in considerable simplification and savings in terms of transportation and installation.
  • the apparatus is overall more streamlined and less bulky also in the operating condition, which represents an advantage for the user.
  • the support frame must be constructed in a traditional manner, with a "bridge" design in the form of an inverted U, it would be possible to arrange, next to the structure illustrated in Fig. 1, a corresponding complementary part of the frame, for example only with structural functions and devoid of any functional device illustrated in the description above: this complementary part could, however, be easily disassembled and separated from the functional main part without particular difficulty. The dimensions could also be reduced without problems for transportation proposes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Confectionery (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Brushes (AREA)
EP00120739A 1999-09-23 2000-09-22 Dispositif compact et reductible combiné pour emballer à l'aide d'un manchon plastique Expired - Lifetime EP1086893B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK00120739T DK1086893T3 (da) 1999-09-23 2000-09-22 Kompakt og reducerbar anordning til emballering ved hjælp af et plasthylster

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI991977 1999-09-23
IT1999MI001977A IT1313378B1 (it) 1999-09-23 1999-09-23 Apparecchiatura incappucciatrice combinata

Publications (3)

Publication Number Publication Date
EP1086893A2 true EP1086893A2 (fr) 2001-03-28
EP1086893A3 EP1086893A3 (fr) 2002-06-19
EP1086893B1 EP1086893B1 (fr) 2005-06-01

Family

ID=11383647

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00120740A Withdrawn EP1086894A3 (fr) 1999-09-23 2000-09-22 Dispositif pour emballer avec un manchon plastique ayant un système amélioré pour appliquer ce manchon sur une charge
EP00120739A Expired - Lifetime EP1086893B1 (fr) 1999-09-23 2000-09-22 Dispositif compact et reductible combiné pour emballer à l'aide d'un manchon plastique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00120740A Withdrawn EP1086894A3 (fr) 1999-09-23 2000-09-22 Dispositif pour emballer avec un manchon plastique ayant un système amélioré pour appliquer ce manchon sur une charge

Country Status (7)

Country Link
EP (2) EP1086894A3 (fr)
AT (1) ATE296753T1 (fr)
DE (1) DE60020468T2 (fr)
DK (1) DK1086893T3 (fr)
ES (1) ES2244380T3 (fr)
IT (1) IT1313378B1 (fr)
PT (1) PT1086893E (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510460A1 (fr) * 2003-08-28 2005-03-02 OFFICINA MECCANICA SESTESE S.p.A. Procédé et appareil pour le suremballage scellé d' une charge avec un film tubulaire en matériau plastique étirable.
EP2719628A1 (fr) 2012-10-09 2014-04-16 OFFICINA MECCANICA SESTESE S.p.A. Machine de hotte d'extraction améliorée avec réglage de hauteur de dispositif de distribution
EP2719629A2 (fr) 2012-10-09 2014-04-16 OFFICINA MECCANICA SESTESE S.p.A. Machine de hotte d'extraction améliorée avec remplacement de bobine automatique
EP2993134A1 (fr) 2014-09-05 2016-03-09 OFFICINA MECCANICA SESTESE S.p.A. Machine de hotte d'extraction

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004017249U1 (de) * 2004-11-04 2006-03-16 Haver & Boecker Vorrichtung zur kontinuierlichen Verarbeitung von Seitenfaltenschlauchfolien
ITMI20051652A1 (it) * 2005-09-07 2007-03-08 Messersi Packaging Srl Metodo e stazione di incappucciamento di prodotti mediante un involucro tubolare
IT1394521B1 (it) * 2008-12-19 2012-07-05 Marpak Oms Group S R L Apparecchiatura incappucciatrice per imballaggio, provvista di forno di termoretrazione e mezzi di protezione dal calore.
EP2336033B1 (fr) * 2009-12-21 2013-01-09 MSK - Verpackungs-Systeme GmbH Dispositif et procédé destinés à l'enveloppement d'une pile de marchandise à l'aide d'une feuille
IT201600127868A1 (it) * 2016-12-19 2018-06-19 Messersi Packaging Srl Macchina incappucciatrice con struttura perfezionata

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0252527A2 (fr) * 1981-05-04 1988-01-13 Kurt Lachenmeier A/S Procédé et appareil pour emballer des marchandises empilées dans une feuille rétractable
EP0285855A1 (fr) * 1987-03-11 1988-10-12 Kurt Lachenmeier A/S Procédé et appareil pour emballer des articles dans une feuille thermoplastique sous forme de bande tubulaire
EP0631935A1 (fr) * 1993-06-05 1995-01-04 Dentz Verpackungsmaschinen GmbH Dispositif pour rétrécir une feuille d'emballage sur une unité d'emballage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208544A1 (de) * 1982-03-10 1983-09-15 INDAG Gesellschaft für Industriebedarf mbH, 6900 Heidelberg Verfahren und vorrichtung zum aufbringen von schrumpffolien auf palettierte gueterstapel
DE3822241C1 (en) * 1988-07-01 1989-09-07 Brega Verpackungsmaschinen-Anwendungstechnik Gmbh, 5880 Luedenscheid, De Apparatus for slipping a shrinkable wrapping over a package

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0252527A2 (fr) * 1981-05-04 1988-01-13 Kurt Lachenmeier A/S Procédé et appareil pour emballer des marchandises empilées dans une feuille rétractable
EP0285855A1 (fr) * 1987-03-11 1988-10-12 Kurt Lachenmeier A/S Procédé et appareil pour emballer des articles dans une feuille thermoplastique sous forme de bande tubulaire
EP0631935A1 (fr) * 1993-06-05 1995-01-04 Dentz Verpackungsmaschinen GmbH Dispositif pour rétrécir une feuille d'emballage sur une unité d'emballage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510460A1 (fr) * 2003-08-28 2005-03-02 OFFICINA MECCANICA SESTESE S.p.A. Procédé et appareil pour le suremballage scellé d' une charge avec un film tubulaire en matériau plastique étirable.
EP2719628A1 (fr) 2012-10-09 2014-04-16 OFFICINA MECCANICA SESTESE S.p.A. Machine de hotte d'extraction améliorée avec réglage de hauteur de dispositif de distribution
EP2719629A2 (fr) 2012-10-09 2014-04-16 OFFICINA MECCANICA SESTESE S.p.A. Machine de hotte d'extraction améliorée avec remplacement de bobine automatique
EP2993134A1 (fr) 2014-09-05 2016-03-09 OFFICINA MECCANICA SESTESE S.p.A. Machine de hotte d'extraction

Also Published As

Publication number Publication date
ES2244380T3 (es) 2005-12-16
DK1086893T3 (da) 2005-10-03
EP1086893B1 (fr) 2005-06-01
ITMI991977A0 (it) 1999-09-23
DE60020468D1 (de) 2005-07-07
EP1086894A2 (fr) 2001-03-28
EP1086894A3 (fr) 2002-06-19
EP1086893A3 (fr) 2002-06-19
PT1086893E (pt) 2005-10-31
ATE296753T1 (de) 2005-06-15
IT1313378B1 (it) 2002-07-23
ITMI991977A1 (it) 2001-03-23
DE60020468T2 (de) 2006-06-29

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