EP2431279B1 - Machine pour appliquer une housse d'emballage sur un objet - Google Patents
Machine pour appliquer une housse d'emballage sur un objet Download PDFInfo
- Publication number
- EP2431279B1 EP2431279B1 EP11178288.4A EP11178288A EP2431279B1 EP 2431279 B1 EP2431279 B1 EP 2431279B1 EP 11178288 A EP11178288 A EP 11178288A EP 2431279 B1 EP2431279 B1 EP 2431279B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hood
- machine according
- vertical
- film
- tube
- 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.)
- Active
Links
- 238000004806 packaging method and process Methods 0.000 title description 2
- 229920006257 Heat-shrinkable film Polymers 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000036961 partial effect Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
Images
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
- 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
- B65B9/14—Devices for distending tubes supplied in the flattened state
Definitions
- the present invention relates to a machine for wrapping objects, such as packages, with a tube of heat-shrinkable film.
- the packages may consist of objects which are stacked on a pallet.
- hooding machines In the prior art machines, called hooding machines, are known, these machines being designed to fit a hood formed by a tube of heat-shrinkable film onto the package to be covered. The film is then heated in order to perform heat-shrinking thereof around the package. Since the tube of film is fitted from the top onto the package, these machines usually form or unroll the tube of film directly above the package receiving zone from a reel which is arranged close to this zone or alongside the machine. Guides and rollers are therefore provided between the reel and the package receiving zone, these conveying the unwound film over the top of the package. In the case of vertical formation of the hood above the package receiving zone the vertical dimensions of the machine are, however, relatively large.
- a further hooding machine is known from document DE-A-2806343 .
- the known machines are fairly slow owing to the need to form and position the hood of film above the package, fit the hood, if necessary heat-shrink the film, remove the package and, only then, repeat from the beginning the operation with the next package.
- the time required to perform satisfactory heat-shrinkage cannot be reduced by more than a certain amount, if the operation is to be properly performed.
- the aesthetic quality of the heat-shrunk hood is often unsatisfactory, especially in the case of product packages which cause rapid cooling of the film when it comes into contact with them.
- the heat-shrunk hood has puckers, bumps and irregularities. This is particularly the case, for example, with packages containing glass bottles.
- precisely the packaging of bottles is one of the sectors where rapid execution of the hooding operation is required owing to the high processing speed of the plants which produce the bottles.
- the general object of the present invention is to provide a hooding machine which is able to achieve both high speeds and a more satisfactory end result, preferably with a lower power consumption.
- a hooding machine for an object, comprising: a vertical supply unit able to supply from the bottom upwards a hood of heat-shrinkable film in the form of a tube segment with an open top end; a vertical fitting unit arranged alongside the vertical supply unit and able to fit from the top downwards a hood of heat-shrinkable film with its open end directed downwards over an object positioned in a hooding zone of the machine; and an upper overturning device which is arranged above and between the supply unit and the fitting unit and which grips the open top end of the hood inside the vertical supply unit and turns it over through 180° on top of the fitting unit, so as to transfer the hood to the fitting unit with its open top end directed downwards.
- Figure 1 shows, generically denoted by 10, a hooding machine designed in accordance with the principles of the present invention.
- the machine 10 comprises a vertical supply unit 11 which is able to supply from the bottom upwards a hood 12 of heat-shrinkable film in the form of a tube segment with an open top end.
- the machine 10 also comprises a vertical fitting unit 13 arranged alongside the vertical supply unit 11 and able to fit a hood of heat-shrinkable film over an object 14 (for example formed by a package comprising objects, such as bottles, boxes, bricks, etc., which are arranged on a pallet) positioned in a hooding zone 15 of the machine (advantageously on top of a suitable known raised base 50, which may be equipped with a means for moving the package inside and outside of the machine).
- an object 14 for example formed by a package comprising objects, such as bottles, boxes, bricks, etc., which are arranged on a pallet
- the fitting unit is able to fit the hood from the top downwards and with its open end directed downwards.
- An upper overturning device 16 is present above and in between the supply unit 11 and the fitting unit 13 and is designed to grip the open top end of the hood in the vertical supply unit and turn it over through 180° above the fitting unit so as to transfer the hood to the fitting unit 13 with its open top end directed downwards.
- the supply unit 11 comprises a feeder device 17 which unwinds a flattened tube of film wound onto a reel 18 and a gripper pick-up device 19 which is vertically slidable so as to grip with its vertical grippers 20 the opposite edges of an open top end of the tube of film leaving the feeder device and convey it upwards as far as the upper overturning device 16.
- the reels 18 may be more than one in number so as to provide different sizes or types of film which can be chosen by suitably setting the feeder device.
- the feeder device 17 also comprises known means 23 (for example of the hot electric blade type) for performing transverse welding of the tube of unwound film so as to form, upon operation, a closed end of the hood opposite to the open top end gripped by the grippers of the pick-up device.
- known means 23 for example of the hot electric blade type
- the tube of film is flattened by means of folding in the form of a strip with a rectangular section having two opposite straight sides close together and the other two opposite sides folded inwards in the form of a V, as can be clearly seen in Figure 2 .
- the grippers 20 advantageously grip the free top end of the film along its two straight sides which are slightly spaced from each other by a certain amount by means of guide blades 22 which are arranged on the exit side of the feeder device 17.
- the pick-up device 19 has advantageously four vertical motor-driven grippers 20 which are coupled together in pairs on opposite edges of the open top end of the tube of film which leaves the feeder device in a flattened condition. The movement for extraction of the segment of film from the feeder device is schematically shown on the right-hand side of Figure 6 .
- the pick-up device 19 is advantageously motor-driven so as to be movable vertically along vertical guiding uprights 21 by means of suitable carriages 24 which are connected by a beam 25 which carries arms 26 supporting the grippers 20.
- the vertical grippers 20 of the pick-up device are supported in the pick-up device 19 so as to be movable, upon operation, between a vertical operating position for gripping and conveying the film upwards and a retracted non-operating position.
- This is advantageously achieved by mounting the grippers on arms 26 which are pivotably hinged with the beam by means of a horizontal pin 27.
- Actuators 28 produce the movement of the grippers of the pick-up device between the operating position and the non-operating position, as will be clarified below.
- the upwards travel of the pick-up device 19 is such that the latter passes through and beyond the upper overturning device, positioning on it the hood to be turned over (as is clearly shown schematically on the right-hand side of Figure 7 ).
- the upper overturning device comprises four gripper units 29, each provided with at least one horizontal motor-driven gripper (advantageously two horizontal grippers coupled together in pairs at a distance and on top of each other).
- the gripper units are intended to grip the tube of film by respective side edges so as to open it with a substantially rectangular section after the pick-up device 19 has reached the end of its upper travel path, as schematically shown on the right-hand side of Figure 8 where the pick-up device is overturned towards its non-operating position after transferring the film to the overturning device 16.
- the gripper units 29 are advantageously mounted on a frame 30 which is motor-driven so as to rotate about a horizontal axis 31 for overturning the hood between the supply unit and the fitting unit (as schematically shown in Figure 9 , where it can also be seen how at the same time the pick-up device 19 is able to return downwards in order to pick up a new hood).
- the overturning device comprises advantageously a drive for moving two of said gripper units (arranged on one side of the tube of film with respect to the other two gripper units arranged on the other side of the tube), so as to allow the controlled movement of two gripper units away from the other two after receiving the hood from the supply unit.
- the frame 30 advantageously comprises a cross-member 32 for supporting two of the gripper units, which is slidable by motor means (via telescopic sliding of arms of the frame hingeably mounted on the axis 31) so as to move from a first position close to the other two gripper units into a position sufficiently removed in order to open completely the top mouth of the hood before overturning it towards the fitting unit 13.
- the vertical fitting unit 13 in turn comprises a conveying frame 33 and, optionally, a heat-shrinking frame 34 arranged on top (advantageously in the form of a closed rectangle lying in a horizontal plane), which frames are motor-driven so as to slide vertically in sequence around the object which is positioned in the hooding zone (as schematically shown on the left-hand side of Figures 6-9 ).
- sliding is performed by means of suitable support carriages 51, 52 sliding along guides in the said uprights 21 which thus separate the zone of upward travel of the hood from the feeder device and the zone of downward travel of the overturned hood in the fitting unit where it is inserted over the object to be covered.
- the drive systems may be for example of the chain-drive type.
- a protective frame 35 which defines the inlet in this zone for the hood which is overturned by the overturning means and which is transferred from the latter to the conveying frame 33 ( Figure 9 ).
- This protective frame which is for example made of metal mesh or the like, defines externally a zone 36 which receives the heat-shrinking frame when not operative (in its raised position) so as to prevent contact between the hood and heating means present on the heat-shrinking frame and protect the hood during insertion onto the object by the conveying frame 33.
- the conveying frame 33 supports vertical grippers 37 which are motor-driven so as to grip the edge of the hood of heat-shrinkable film with its open end directed downwards.
- the grippers 37 have (like the grippers 20 and the gripper units 29) means for adjusting the position depending on the transverse dimensions of the hood.
- the conveying frame advantageously comprises means for blowing air inside the hood retained by the grippers 37 thereon.
- These blowing means may comprise a fan 38 which blows air for example through pipes which emerge on the top end of said grippers 37.
- the heat-shrinking frame 34 is provided with heating means 39 on its four sides, as can be clearly seen in Figure 5 .
- These heating means are directed towards the outer surface of the hood fitted by the conveying frame onto an object positioned in the hooding zone.
- the conveying frame travels downwards while the heat-shrinking frame remains advantageously in the zone protected by the protective frame 35 (as schematically shown on the left-hand side in Figure 6 ).
- the blown air keeps the hood inflated and facilitates introduction over the object to be wrapped.
- the frame 33 stops ( Figure 7 ) and the heat-shrinking frame 34 with the activated heating means commences its downwards movement (left-hand side of Figure 8 ), while advantageously blowing of air into the hood continues. The descent continues down as far as the base of the package. During the subsequent return upward movement of the heat-shrinking frame, heating may be maintained for more complete and uniform heat-shrinkage of the film.
- the package may be removed and a new object to be wrapped may be arranged in the hooding zone (left-hand side of Figure 9 ).
- the wrapping operations are performed faster, it being possible for example to perform, in parallel, preparation of a hood and insertion and heat-shrinkage of a preceding hood, as can be seen from the sequence shown in Figures 6 to 9 .
- the movement of the heat-shrinkage means may be performed more quickly owing to the fact that the hood touches the package only after it has been heat-shrunk.
- a low power consumption may be maintained.
- the machine is compact and has small dimensions.
- the quality of the finished product is improved owing to the innovative features which characterize insertion and heat-shrinking of the hood on the object.
- heat-shrinkage of the film may also be performed in a separate station, with a heating frame or with a special heated chamber or oven. In this case it is possible to dispense with the heat-shrinking frame 34, and also, if required, the protective frame 35, if considered unnecessary for guiding the hood.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Basic Packing Technique (AREA)
Claims (13)
- Housseuse (14) pour un objet (14), comprenant:une unité d'alimentation verticale (11) qui est capable de fournir de bas en haut, une housse de film thermorétractable (12) sous la forme d'un segment tubulaire avec une extrémité supérieure ouverte;une unité d'ajustement verticale (13) agencée le long de l'unité d'alimentation verticale et capable d'ajuster, de haut en bas, une housse de film thermorétractable avec son extrémité ouverte dirigée vers le bas, sur un objet positionné dans une zone de houssage (15) de la machine;une dispositif de retournement supérieur (16) qui est agencé au-dessus et entre l'unité d'alimentation et l'unité d'ajustement et qui saisit l'extrémité supérieure ouverte de la housse dans l'unité d'alimentation verticale et la retourne à 180° sur la partie supérieure de l'unité d'ajustement afin de transférer la housse à l'unité d'ajustement avec son extrémité supérieure ouverte dirigée vers le bas.
- Machine selon la revendication 1, caractérisée en ce que l'unité d'alimentation comprend un dispositif d'alimentation (17) qui déroule un tube de film enroulé sur une bobine (18) et un dispositif preneur à pinces verticalement coulissant (19) pour pincer avec ses pinces verticales (20) des bords opposés d'une extrémité supérieure ouverte du tube de film sortant du dispositif d'alimentation et pour le transporter vers le haut jusqu'au dispositif preneur supérieur (16).
- Machine selon la revendication 2, caractérisée en ce que le dispositif d'alimentation (17) comprend des moyens pour réaliser le soudage transversal du tube de film déroulé afin de former, suite à une commande, une extrémité fermée de la housse opposée à l'extrémité ouverte saisie par les pinces du dispositif preneur.
- Machine selon la revendication 2, caractérisée en ce que le dispositif preneur (19) a, de manière avantageuse, quatre pinces verticales (20) qui sont couplées ensemble par paires sur des bords opposés de l'extrémité supérieure ouverte du tube de film qui sort du dispositif d'alimentation dans une condition aplatie.
- Machine selon la revendication 2, caractérisée en ce que le dispositif preneur (19) est entraîné par moteur afin d'être mobile verticalement le long des montants de guidage verticaux (21).
- Machine selon la revendication 2, caractérisée en ce que les pinces verticales du dispositif preneur (19) sont supportées dans le dispositif preneur (19) afin d'être mobiles, suite à une commande, entre une position de fonctionnement verticale pour saisir et transporter le film vers le haut et une position rétractée inactive.
- Machine selon la revendication 1, caractérisée en ce que le dispositif de retournement supérieur comprend quatre unités de pince, chacune prévue avec au moins une pince horizontale et prévue pour saisir le tube de film par des bords latéraux respectifs afin de l'ouvrir avec une section sensiblement rectangulaire, les unités de pince étant supportées par un bâti entraîné par moteur afin de tourner autour d'un axe horizontal pour retourner la housse entre l'unité d'alimentation et l'unité d'ajustement.
- Machine selon la revendication 7, caractérisée en ce que chaque unité de pince comprend deux pinces horizontales espacées agencées l'une au-dessus de l'autre.
- Machine selon la revendication 7, caractérisée en ce que le dispositif de retournement supérieur comprend un entraînement pour déplacer deux desdites unités de pince qui sont agencées sur un côté du tube par rapport aux deux autres unités de pince agencées de l'autre côté du tube, afin de permettre le mouvement contrôlé des deux unités de pince à distance des deux autres unités après réception de la housse de l'unité d'alimentation, pour ouvrir l'embouchure de la housse à partir d'une condition d'alimentation de segment tubulaire aplatie.
- Machine selon la revendication 1, caractérisée en ce que l'unité d'ajustement verticale comprend un bâti de transport qui est entraîné par moteur afin de glisser verticalement autour de l'objet qui est positionné dans la zone de houssage, le bâti de transport supportant des pinces verticales pour pincer le bord de la housse de film thermorétractable avec son extrémité ouverte dirigée vers le bas.
- Machine selon la revendication 10, caractérisée en ce que l'unité d'ajustement verticale comprend un bâti de thermorétraction qui est entraîné par moteur afin de glisser verticalement autour de l'objet positionné dans la zone de houssage, le bâti de thermorétraction supportant des moyens de chauffage dirigés vers la surface externe de la housse ajustée par le bâti de transport sur un objet positionné dans la zone de houssage.
- Machine selon la revendication 10, caractérisée en ce que le bâti de transport comprend des moyens pour souffler de l'air à l'intérieur de la housse retenue par les pinces sur ce dernier.
- Machine selon la revendication 11, caractérisée en ce que, au-dessus de la zone de houssage, on trouve un bâti de protection qui définit l'entrée de cette zone pour la housse qui est retournée par les moyens de retournement et qui est transférée de cette dernière aux pinces sur le bâti de transport, le bâti de protection définissant extérieurement, une zone pour recevoir le bâti de thermorétraction lorsqu'il est inactif, afin d'empêcher le contact entre la housse et les moyens de chauffage du bâti de thermorétraction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11178288T PL2431279T3 (pl) | 2010-09-21 | 2011-08-22 | Urządzenie do nakładania kaptura opakowaniowego na przedmiot |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2010A001714A IT1401947B1 (it) | 2010-09-21 | 2010-09-21 | Macchina incappucciatrice. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2431279A1 EP2431279A1 (fr) | 2012-03-21 |
EP2431279B1 true EP2431279B1 (fr) | 2013-06-19 |
Family
ID=43719436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11178288.4A Active EP2431279B1 (fr) | 2010-09-21 | 2011-08-22 | Machine pour appliquer une housse d'emballage sur un objet |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2431279B1 (fr) |
ES (1) | ES2428021T3 (fr) |
IT (1) | IT1401947B1 (fr) |
PL (1) | PL2431279T3 (fr) |
PT (1) | PT2431279E (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101799312B1 (ko) * | 2017-08-31 | 2017-12-21 | 이경택 | 스트레치 후드 포장 장치 및 상기 장치를 이용한 포장 방법 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2921415A1 (fr) * | 2014-03-21 | 2015-09-23 | RH Montagetechnik ApS | Dispositif pour emballer des produits ou des emballages et procédé de réparation et d'entretien de l'appareil |
WO2015140310A1 (fr) * | 2014-03-21 | 2015-09-24 | Rh Montagetechnik Aps | Appareil pour emballer des articles ou des emballages et procédé de réparation et de maintenance de l'appareil |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2806343C2 (de) * | 1978-02-15 | 1982-12-09 | Msk - Verpackungs-Systeme Gmbh, 4192 Kalkar | Verfahren zum Überziehen einer Schrumpffolienhaube über Stückgut und Vorrichtung zur Durchführung des Verfahrens |
EP0076867B1 (fr) * | 1981-10-09 | 1986-04-16 | Axel Frommelt | Procédé et dispositif pour recouvrir de grands objets à l'aide d'une feuille tubulaire |
FR2867452B1 (fr) * | 2004-03-11 | 2007-06-01 | Thimon | Procede et dispositif de mise en forme et de depose a haute cadence d'une housse d'emballage sur une charge palettisee. |
-
2010
- 2010-09-21 IT ITMI2010A001714A patent/IT1401947B1/it active
-
2011
- 2011-08-22 ES ES11178288T patent/ES2428021T3/es active Active
- 2011-08-22 PL PL11178288T patent/PL2431279T3/pl unknown
- 2011-08-22 PT PT111782884T patent/PT2431279E/pt unknown
- 2011-08-22 EP EP11178288.4A patent/EP2431279B1/fr active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101799312B1 (ko) * | 2017-08-31 | 2017-12-21 | 이경택 | 스트레치 후드 포장 장치 및 상기 장치를 이용한 포장 방법 |
Also Published As
Publication number | Publication date |
---|---|
ES2428021T3 (es) | 2013-11-05 |
PL2431279T3 (pl) | 2013-11-29 |
PT2431279E (pt) | 2013-08-30 |
EP2431279A1 (fr) | 2012-03-21 |
IT1401947B1 (it) | 2013-08-28 |
ITMI20101714A1 (it) | 2012-03-22 |
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