EP0249534B1 - Verfahren und Vorrichtung zum Verpacken einer Palettenladung in eine Hülle aus wärmeschrumpffähiger Kunststoffolie - Google Patents

Verfahren und Vorrichtung zum Verpacken einer Palettenladung in eine Hülle aus wärmeschrumpffähiger Kunststoffolie Download PDF

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Publication number
EP0249534B1
EP0249534B1 EP19870401242 EP87401242A EP0249534B1 EP 0249534 B1 EP0249534 B1 EP 0249534B1 EP 19870401242 EP19870401242 EP 19870401242 EP 87401242 A EP87401242 A EP 87401242A EP 0249534 B1 EP0249534 B1 EP 0249534B1
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EP
European Patent Office
Prior art keywords
cover
air
load
exhaustion
palletized load
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Expired - Lifetime
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EP19870401242
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English (en)
French (fr)
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EP0249534B2 (de
EP0249534A1 (de
Inventor
Eric Lehmann
Jean Doberva
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Newtec International SA
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Newtec International SA
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    • 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

Definitions

  • the invention relates to a method and an installation for packaging a palletized load in a shrinkable plastic cover.
  • the palletized load is placed on a table (first phase), then the open cover is put on to place it around and on the palletized load (second phase) and, finally, it is heated the cover thus placed on the palletized load in order to carry out its heat-shrinking (third phase).
  • the palletized load remains stationary both horizontally and vertically, the installation being a single station and a movable support table only horizontally for the supply and evacuation of the load .
  • the installation comprises a horizontal frame, the opening of which corresponds to the size of the palletized load, slidably mounted in the vertical direction and driven to slide by drive means such as motorized endless chains.
  • the frame may include, integrated, heating means making it possible to heat shrink the cover when the frame is mounted.
  • Pressurized air supply means can be associated with the frame to produce an air mattress between the frame and the cover.
  • the packaging is carried out according to the same general sequence in three phases (placing the load on the table, placing the cover, heating). However, during the phase of fitting the cover, the palletized load is moved vertically and, between this second phase and the third heating phase, the palletized load is moved horizontally, the installation being at two stations corresponding respectively, the first, in the second phase and, the second, in the third phase.
  • the installation also comprises, at the first station, a lifting table. Air suction means are placed, at the first station, under the lifting table and have the sole function of participating in the positioning of the cover on the palletized load during the second phase of positioning.
  • a cover is used whose height is greater than that of the palletized load so that the lower free end of the cover initially falls and protrudes below the pallet is later folded horizontally on its lower horizontal face.
  • the installation comprises, at the first station, folding means such as pivoting arms and, at the second station, separate retaining means.
  • folding means such as pivoting arms and, at the second station, separate retaining means.
  • the lifting table is openwork and the pallet allows the passage of air.
  • the packaging is carried out according to the same general sequences with three phases (process) and two stations (installations).
  • the cover as in the second embodiment, initially protrudes under the pallet.
  • a lifting table is provided at the second heating station.
  • the second heating station mainly comprises a fixed heating enclosure and means for circulating hot air in the enclosure and around the palletized load. The air causes the cover to be applied under the pallet and simultaneously heat shrink it.
  • the packaging is produced by completely separating the operations of fitting the cover and heating for the shrinkage.
  • the heating is carried out by means of a frame provided with radiant heat emitters mounted vertically sliding. Gripping means actuated by springs are associated with the support table to maintain the lower free outer part of the cover during heating.
  • the aim is to fix the cover under the load or the pallet.
  • the cover protrudes under the load or the pallet.
  • the vacuum is evacuated in the cover by means of a fan placed under the load or the pallet.
  • the pallet rests on a platform, being moved apart to allow the cover to be folded down.
  • the platform has openings for the passage of suction air.
  • the heating means consist of a heating mat.
  • a packaging process is known (document US 3429095) of a palletized load in a cover having the main characteristic of being impermeable to air but not of being heat-shrinkable.
  • the cover is placed around and on the palletized load, the lower free end part falling from the cover is subjected to the pallet, in a manner that is substantially sealed by means of a link, the vacuum is created in the cover and in particular in the load itself from a valve located in the middle of a vertical lateral face of the load, the valve is closed in a leaktight manner and, finally, the cover thus set is strapped.
  • the invention aims to solve the problem of very tight securing of the cover to the load, in the case of a process of the type three operational phases of placing on a table, placing the cover on a palletized load, heating the cover . More specifically, the invention aims to solve the problem of securing the lower free end part of the cover to the pallet. Indeed, in the second, third and fifth embodiments described, this subjugation requires the implementation of a lifting table or sufficiently high and the use of a sufficient cover height. In the second embodiment, the securing requires, in addition, the presence of folding means and retaining means.
  • the securing also requires the use of a sufficient cover height and, moreover, a complex adjustment of the flow of hot air and its speed along its path, deflection means appropriate air flow, support means capable of letting air pass.
  • this securing requires spring gripping means and has the result that the lower free end of the cover is not retracted.
  • the securing requires on the one hand a special pallet with peripheral groove and, on the other hand, a step of placing in place of an appropriate link so that the packaging produced is heterogeneous.
  • the second and fifth embodiments necessarily imply the use of an openwork table and a pallet capable of allowing the passage of air, these conditions being essential.
  • the invention first proposes a method for packaging a palletized load in a shrinkable plastic cover which comprises a first phase, in which the palletized load is placed on a support; a second phase in which the open cover is put on to place it around and on the palletized load and a third phase in which the load thus placed on the palletized load is heated in order to carry out its heat-shrinking, process in which the air is sucked located in the cover at least during the third heating phase, characterized in that before the air suction, between the palletized load and the cover, in particular in a lateral clearance of the air suction means and these air suction means are removed after suction, so as to mainly suck the air in the lateral clearance.
  • the invention proposes an installation which comprises a support table, means for threading the cover to place it around and on the palletized load, means for heating the cover thus placed on the palletized load in order to carry out its heat shrinking and air suction means characterized in that the air suction means are placed substantially outside, at the lateral periphery and in the vicinity of the support table so as to be between the load and the cover after placing it around the load.
  • the invention makes it possible to achieve very close securing of the cover to the palletized load and mainly of the lower free end edge of the cover to the pallet. It makes it possible to dispense with the use of a lifting table as a compulsory member, both for the installation of the cover and for its heating. It authorizes the use of an airtight pallet or the presence between the pallet and the load of a format made of an airtight material. It makes it possible to dispense, as a compulsory condition, with a cover protruding under the pallet. It makes it possible to dispense with additional folding and retaining means (second embodiment) or gripping means (fourth embodiment).
  • the invention is applicable, in particular, in the case of a packaging method of the type mentioned above which comprises an initial stage in which air is blown into a cover to avoid the presence of creases.
  • the invention relates to a method and an installation for packaging a load 1 carried by a pallet 2 in a heat-shrinkable plastic cover 3.
  • the method comprises in a manner known per se a first step, not shown, in which the palletized load 1,2 is placed on a support table 4; a second step, not shown, in which the cover 3 is threaded open to place it around on the palletized load 1,2; and a third step in which the cover 3 thus placed on the palletized load 1,2 is heated in order to heat shrink it, using heating means 5.
  • the palletized load 1, 2 can be placed directly on the support table 4 without the need to be removed from it.
  • the air in the cover 3 is sucked in at least during part of the third heating phase, so as to combine the effects of the heating and the air suction in order to ensure a tight cover of the cover 3 and the palletized load 1.2.
  • the load 1 has a generally parallelepiped shape comprising a lower horizontal face 6, an upper horizontal face 7 and four lateral vertical faces 8.
  • the invention applies to all palletized loads capable of being packaged in a shrink-wrapped plastic cover by using heating means. It applies more especially in the case where a format 9 also in the form of a film of heat-shrinkable plastic material is interposed between the load 1 proper, in particular its lower horizontal face 6, and the pallet 2. It also applies more particularly in the case of a load to be packed with a cover applied narrowly to the load, the latter may have an irregular shape.
  • the pallet 2 can be of any suitable type, in particular made of wood and comprising two horizontal panels respectively upper 10 and lower 11 associated by blocks forming a spacer 12 defining the thickness of the pallet 2 and the vertical lateral faces 13 of the pallet 2.
  • the panels 10, 11 can be full.
  • the cover 3 is produced in particular from a continuous tubular sheath folded flat, which is then unfolded to be opened, then cut and welded transversely.
  • the cover 3 comprises a roof 14 as well as vertical lateral faces 15, limited opposite the roof 14, by a free edge 16 defining the opening 17 of the cover 3.
  • the plastic material constituting the cover has a certain air impermeability.
  • the table 4 is normally placed horizontally, the free end portion 18 of the cover 3 being placed downwards and in the immediate vicinity of the table 4, in particular at the level of the lateral faces of the pallet 2 without projecting substantially below the lower plane of pallet 2 or above the upper plane of table 4.
  • the invention applies to the case of a cover 3 not specially adapted for hanging, originally under load 1, respectively under pallet 2 .
  • the cover 3 Before its heat-shrinking, the cover 3 has a certain lateral play 19 with the load 1, in particular its vertical faces 8, to allow the establishment of the cover 3 on the load 1 ( Figure 1). After heat shrinking, the cover 3 is applied to the load 1, the lateral clearance 19 having disappeared (FIG. 6).
  • the invention allows the presence of the initial lateral clearance 19 which facilitates the positioning of the cover 3 on the load, without hampering its retraction and especially its securing.
  • the air mainly between the palletized load 1, 2 and the cover 3 is sucked in, namely in the lateral clearance 19.
  • the air suction place between the palletized load 1,2 and the cover 3 - that is to say in the lateral clearance 19 - of the air suction means 20.
  • the air suction means 20 are removed after suction.
  • the method comprises a preliminary phase, not shown, during which the pallet 2, in particular its upper horizontal panel 10, is placed and between the pallet 2 and the load 1, in particular its lower horizontal face 6, a format 9 whose outer edges 21 fall on the side faces 13 of the pallet 2 ( Figure 1).
  • the material constituting the format is generally the same as that constituting the cover 3.
  • the dimensions of the format 9, relative to those of the pallet 2, are such that the outer edges 21 are at the same maximum as that of the table 4 and, preferably, slightly above it.
  • the dimensions of the cover 3 relative to those of the palletized load 1,2, in particular the height, are such that the free edges 16 of the cover 3 are located at the maximum at the same level as that of the table 4 and preferably at- above it, facing the outer edges 21 ( Figure 1).
  • the lower free end portion 18 of the cover 3 is applied to the falling outer edges 21 of the format 9.
  • the lower free end portion 18 and / or the falling edges 21 are heat-shrunk and secured together, while remaining in line with the lateral faces of the pallet 1, in particular without passing beneath it after shrinking.
  • the cover 3 is heated by successive zones, in particular in the form of horizontal rings from bottom to top, that is to say from the opening 17 to the roof 14.
  • This heating by successive zones is carried out when the lower free end portion 18 and the drooping edges 21 are secured, so as to avoid a rise in the free edge 16 of the cover and, thus, ensure, by heat shrinking the cover 3, vertical cohesion forces on the palletized load 1.2.
  • the palletized load 1,2 is permanently supported vertically stationary.
  • the palletized load is raised vertically during the third heating phase.
  • This latter variant is more especially applicable when the outer edges 21 of the format 9 and the free end portion 18 of the cover 3 protrude under the table 4, in particular its lower wall 11.
  • it is permanently supported the palletized load 1,2 horizontally, either stationary or non-stationary palletized load 1, 2 can be moved horizontally.
  • first case stationary horizontal hold
  • second case applies more specifically to a machine with two separate stations (installation of the sheath and heating).
  • the air suction means 20 are put in place between the second phase (fitting the sheath) and the third phase (heating). For example, we start the suction air at the latest at the start of the third heating phase and in particular at the start, or shortly before the start, of the third phase.
  • the air intake is terminated at the latest at the end of the third heating phase and, in particular, at the end or shortly before the end of the third phase.
  • the air is drawn in continuously.
  • the air is sucked discontinuously, in particular during a first initial step with a view to ensuring the application of the extreme free part 18 of the cover 3 on the pallet 2, respectively on the edges outside 21 of format 9 and, in one or more subsequent steps, in order to avoid the formation of pockets of expansion air between the palletized load 1,2 and the cover 3 (as a result of the expansion of the tune 19).
  • the air is drawn in constantly.
  • the air is sucked in a variable manner, in particular in a decreasing manner as the heating phase progresses, and this as a function of the residual volume of air being in the set 19
  • the cover 3 is spread transversely (that is to say horizontally and perpendicular to a vertical face 8). liber extreme part 18 - of the palletized load 1,2 to make between them a passage 22 open to the outside and one makes penetrate from the outside, then slide longitudinally - in particular vertically and ascendingly - in the passage 22 the means air suction 20 and more particularly a suction nozzle 23.
  • the passage 22 therefore results from a transverse widening of the clearance 11, the opening of which is the opening 17.
  • the air suction means 20 are placed at least substantially on a vertical median line of a lateral face 8.
  • the suction means 20 can be placed on several contiguous faces 8 and / or opposite and in particular on the four lateral faces 8.
  • the air suction means 20 are placed, in any event, so as to produce effective suction throughout the set 19.
  • the air suction means 20, in particular the nozzle 23, are fixed during the suction.
  • the air suction means 20, in particular the nozzle 23, are movable during the suction, for example with vertical sliding so as to be placed in or near the zone in which the air intake is desired, this area generally being close to the heating area.
  • the air suction means 20 are removed immediately, or almost immediately, after the end of the suction.
  • the air suction means 20 are removed by longitudinal sliding of the nozzle 23 in the passage 22.
  • the cover is heated 3 laterally in the area of the suction means 20 ( Figure 6).
  • the invention also relates to an installation for implementing the method which comprises a support table 4 for the palletized load 1,2; means for threading the cover 3 open to place it around and on the palletized load 1,2, not shown; heating means 5 of the cover thus placed on the palletized load 1,2 in order to heat shrink it; and air suction means 20 which are placed substantially outside, at the lateral periphery and in the vicinity of the support table 4 (FIG. 3).
  • the air suction means 20 are located in the vicinity of the heating means 5, that is to say at the station of the installation comprising the heating means 5 so that the heating means 5 and the means d suction 20 can operate at least partially and simultaneously and thus combine their effects.
  • the suction means 20 comprise for example motor means 24 having a generally fixed position, in particular laterally next to the support table 4 and nozzle means 23 mounted in a movable manner, in particular essentially by longitudinal sliding between, on the one hand , an active working position ( Figures 3, 4 and 5) where they are placed outside, at the lateral periphery, slightly above and near the support table 4 and in particular between the palletized load 1,2 and the cover 3, so as to allow the suction of air are between them and, on the other hand, an inactive rest position (FIGS. 1, 2, and 6) where they are moved away from the active working position, including the support table 4.
  • an active working position Figures 3, 4 and 5
  • FIGS. 1, 2, and 6 inactive rest position
  • the heating means 5 are, for example, constituted by a horizontal frame, the opening of which corresponds to the size of the palletized load 1,2, mounted sliding in the vertical direction and driven to slide by drive means such as motorized endless chains.
  • the means for threading the cover 3 comprise, for example, fingers for gripping the cover 3 carried by the movable horizontal frame of the heating means 5, the installation then being at a single position for fitting the cover and heating .
  • the installation may include two separate posts, the first for fitting the cover and the second for heating.
  • the installation also includes means for positioning on the pallet 2 and between it and the load 1 of format 9 (not shown). These means are located upstream of the means for threading the cover 3 onto the load 1.
  • the support table 4 is fixed in the vertical direction. It can be full, that is to say it is not specially designed to allow the passage of air through. It may be low, that is to say not be specially designed to allow the housing, beneath it, of suction means or elevation means or to allow the sheath to protrude below.
  • the installation further comprises means 25 for gripping the cover 3 - in particular by suction - movable in transverse direction, placed in the vicinity of the means of the nozzle 23 in the active working position and capable of producing between the pallet load 1,2 and the cover 3 has a passage 22 for installing and removing the air suction means 20.
  • the installation finally comprises localized heating means 26 of the cover 3 placed in the vicinity of the nozzle means 23 in the active working position and capable of performing the heat shrinkage of the cover at the location of the nozzle means 23.
  • the nozzle means 23 preferably have a generally elongated and flattened shape.
  • the installation may include nozzle means 23 on at least two contiguous and / or adjacent sides of the support table 4.
  • the invention relates to a packed palletized load 1,2 comprising a cover 3 made of heat-shrinkable plastic placed around and on the palletized load 1,2 which is obtained by the process described above.
  • This packaging comprises, between the pallet 2 and the load 1, a format 9 also made of heat-shrinkable plastic, the outer edges 21 of which are rigidly and sealingly associated with the lower free end portion 18 of the cover 3, by heat sealing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)

Claims (21)

1. Verfahren zum Verpacken einer Palettenladung (1, 2) in eine Hülle (3) aus wärmeschrumpffähiger Kunststoffolie, mit einem ersten Schritt, bei welchem die Palettenladung (1, 2) auf einen Auflagetisch (4) gebracht wird, mit einem zweiten Schritt, bei welchem die offene Hülle (3) um und über die Palettenladung (1, 2) gebracht wird, und mit einem dritten Schritt, bei dem die so über die Palettenladung (1, 2) gebrachte Hülle (3) zur Realisierung ihrer Wärmeschrumpfung erwärmt wird, und bei welchem Verfahren die sich in der Hülle (3) befindende Luft zumindest während eines Teil des dritten Erwärmungsschrittes abgesaugt wird, dadurch gekennzeichnet, daß vor dem Absaugen von Luft zwischen der Palettenladung (1, 2) und der Hülle (3) insbesondere in einem seitlichen Spalt (19) Luftabsaugmittel (20) angeordnet werden und daß die Luftabsaugmittel (20) nach dem Absaugen derart weggenommen werden, daß die im seitlichen Spalt befindende Luft im wesentlichen abgesaugt wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein vorangehender Schritt vorgesehen ist, während dem auf die Palette (2) und zwischen die Palette (2) und die Ladung (1) ein Stück der wärmeschrumpffähigen Kunststoffolie (9) gebracht wird, dessen Außenränder (21) über die Seitenflächen (13) der Palette (2) hängen, derart, daß durch das Absaugen von Luft die Hülle (3) über eine ausreichende Höhe an den herabhängenden Rändern (21) des Folienstücks (9) anliegt und daß durch das Erwärmen die Hülle (3) und die herabfallenden Ränder (21) des Folienstücks wärmegeschrumpft und miteinander verbunden werden.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Hülle (3) in aufeinanderfolgenden Zonen und von unten nach oben erwärmt wird, damit das Zurückweichen des freien Randes (16) der Hülle (3) vermieden wird.
4. Verfahren nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß die Hülle (3) auf die Palettenladung (1, 2) derart gebracht wird, daß der freie untere Rand (16) der Hülle zumindest im wesentlichen in derselben unteren Höhe oder oberhalb der unteren Höhe der Palette (2) angeordnet ist.
5. Verfahren nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die Luftabsaugmittel (20) zwischen dem zweiten und dem dritten Schritt eingebracht werden und/oder die Luftabsaugung spätestens zu Beginn des dritten Erwärmungsschrittes und insbesondere zu Beginn oder ein wenig vor dem Beginn des dritten Erwärmungsschrittes beginnt und/oder die Luftabsaugung spätestens am Ende des dritten Erwärmungsschrittes und insbesondere am Ende oder etwas vor dem Ende des dritten Erwärmungsschrittes endet.
6. Verfahren nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß die Luft kontinuierlich oder diskontinuierlich abgesaugt wird, insbesondere bei einem ersten anfänglichen Abschnitt, um das Anbringen des herabhängenden unteren freien Endbereichs der Hülle (18) über die Palette (3) bzw. über die äußeren herabfallenden Ränder (21) des Folienstücks (9) sicherzustellen, und bei einem oder mehreren späteren Abschnitten, um die Bildung von Expansionsluft-Taschen zwischen der Palettenladung und der Hülle zu vermeiden.
7. Verfahren nach einem der Ansprüche 1-6, dadurch gekennzeichnet, daß die Luft konstant oder variabel abgesaugt wird, insbesondere nach und nach degressiv mit dem Fortschreiten des Erwärmungsschrittes.
8. Verfahren nach einem der Ansprüche 1-7, dadurch gekennzeichnet, daß zum Anbringen der Luftabsaugmittel (20) zwischen die Palettenladung (1, 2) und die Hülle (3), insbesondere durch Absaugen, die Hülle (3), insbesondere ihr herabfallender unterer Endbereich (18) gegenüber der Palettenladung (1, 2) in Querrichtung wegbewegt wird, um dazwischen einen nach außen offenen Durchgang (22) vorzusehen, und daß die Luftabsaugmittel (20), insbesondere eine Ansaugdüse (23) von außen eindringen und dann im Durchgang längs verschoben werden kann.
9. Verfahren nach einem der Ansprüche 1-8, dadurch gekennzeichnet, daß die Luftabsaugmittel (20) an mehreren aneinanderstoßenden seitlichen Flächen und/oder der Palettenladung (1, 2) gegenüberliegend angebracht wird.
10. Verfahren nach einem der Ansprüche 1-9, dadurch gekennzeichnet, daß während der Luftabsaugung die Luftabsaugmittel (20), insbesondere die Luftansaugdüse (23) ortsfest oder beweglich, insbesondere verschiebbar sind, damit sie sich in der oder in der Nähe der Zone, in der die Luftabsaugung erwünscht ist, befinden.
11. Verfahren nach einem der Ansprüche 1-10, dadurch gekennzeichnet, daß die Luftabsaugmittel (20) unmittelbar oder nahezu unmittelbar nach dem Ende der Absaugung durch Verschieben im Durchgang (22) wegbewegt werden.
12. Verfahren nach einem der Ansprüche 1-11, dadurch gekennzeichnet, daß unmittelbar oder nahezu unmittelbar nach dem Entfernen der Luftabsaugmittel (20) die Hülle (3) seitlich in der Zone der Absaugmittel (20) erwärmt wird.
13. Vorrichtung zum Verpacken einer Palettenladung in eine Hülle aus wärmeschrumpffähiger Kunststoffolie, mit einem Auflagetisch (4) für die Palettenladung (1, 2), mit Mitteln zum Aufbringen der offenen Hülle (3) über und um die Palettenladung (1, 2), mit Mitteln (5) zum Erwärmen der so über die Palettenladung (1, 2) gebrachten Hülle (3), um deren Wärmeschrumpfung zu erreichen, und mit Luftabsaugmitteln (20), dadurch gekennzeichnet, daß die Luftabsaugmittel (20) im wesentlichen außen am seitlichen Umfang und in der Nähe des Auflagetisches (4) derart angeordnet sind, daß sie sich zwischen der Ladung und der Hülle, nachdem diese um die Ladung gebracht worden ist, befinden.
14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die Absaugmittel (20) einerseits Antriebsmittel (24), die an einer ortsfesten Stelle, insbesondere seitlich am Auflagetisch (4) angeordnet sind und andererseits eine Düse (23) bildende Mittel aufweisen, die insbesondere im wesentlichen durch Längsverschiebung zwischen einerseits einer aktiven Arbeitsposition, in der sie sich außen am seitlichen Umfang etwa oberhalb und in der Nähe des Auflagetisches, insbesondere zwischen der Palettenladung (1, 2) und der Hülle (3) befinden, damit im wesentlichen ein Absaugen der sich zwischen der Palettenladung (1) und der Hülle (3) befindenden Luft ermöglicht ist, und andererseits einer inaktiven Ruheposition, in der sie von der aktiven Arbeitsposition, insbesondere nach außerhalb des Auflagetisches (4) entfernt sind, bewegbar gehalten sind.
15. Vorrichtung nach Anspruch 13 oder 14, dadurch gekennzeichnet, daß die Mittel (5) zum Erwärmen durch einen horizontalen Rahmen gebildet sind, dessen Öffnung den Abmessungen der Palettenladug (1, 2) entspricht und der in vertikaler Richtung verschieblich gehalten und zur Verschiebung durch Antriebsmittel, wie bspw. angetriebene endlose Ketten bewegbar ist, und/oder daß die Mittel zum Aufbringen der Hülle Finger zum Ergreifen der Hülle (3), die vom horizontalen beweglichen Rahmen gehalten sind, besitzen, wobei die Vorrichtung zum Anbringen der Hülle und zum Erwärmen an einer einzigen Stelle ist.
16. Vorrichtung nach einem der Ansprüche 13-15, dadurch gekennzeichnet, daß der Auflagetisch (4) in vertikaler Richtung und/oder vollständig und/oder unten fixiert ist.
17. Vorrichtung nach einem der Ansprüche 13-16, dadurch gekennzeichnet, daß sie Mittel zum Einbringen eines Folienstücks (9) aus wärmeschrumpffähigem Kunststoff auf die Palette (2) und zwischen die Palette (2) und die Ladung (1) aufweist, wobei diese Mittel vor den Mitteln zum Aufbringen der Hülle (3) über die Ladung (1) angeordnet sind.
18. Vorrichtung nach einem der Ansprüche 13-17, dadurch gekennzeichnet, daß sie Mittel (25) zum Ergreifen der Hülle (3), insbesondere durch Ansaugen, aufweist, die in Querrichtung beweglich sind, im Bereich der Düsenmittel (23) in eine aktive Arbeitsposition bringbar sind und mit denen zwischen der Palettenladung (1, 2) und der Hülle (3) ein Durchgang (22) erreichbar ist, der nach außen hin offen ist, um die Luftabsaugmittel (20) einzubringen.
19. Vorrichtung nach einem der Ansprüche 13-18, dadurch gekennzeichnet, daß sie Mittel (26) zum örtlichen Erwärmen der Hülle (3) aufweist, die im Bereich der Düsenmittel (23) in einer aktiven Arbeitsposition anbringbar sind und mit denen die Wärmeschrumpfung der Hülle (3) im Bereich der Düsenmittel (23) erreichbar ist.
20. Vorrichtung nach einem der Ansprüche 13-19, dadurch gekennzeichnet, daß die Düsenmittel (23) eine im wesentlichen langgestreckte und abgeflachte Form aufweisen und/oder daß die Vorrichtung Düsenmittel (23) an mindestens zwei aneinandergrenzende Seiten und/oder dem Tisch (4) benachbart besitzt.
21. Verpackte Palettenladung (1, 2), mit einer Hülle (3) aus wärmeschrumpffähigem Kunststoffmaterial, die um die und über der Ladung angeordnet ist, dadurch gekennzeichnet, daß sie durch das Verfahren gemäß einem der Ansprüche 1-12 erreicht ist, daß sie zwischen der Palette (2) und der Ladung (1) ein Folienstück (9) aus wärmeschrumpffähigem Kunststoffmaterial besitzt, dessen äußere, über die Seitenflächen (13) der Palette (2) herabfallenden Ränder fest und dicht mit dem unteren, herabfallenden freien Endbereich (18) der Hülle (3) durch Wärmeschweißung verbunden sind, und/oder daß der untere freie Endbereich (18) und/oder die herabfallenden Ränder (21) an den seitlichen Flächen (13) der Palette (12), insbesondere ohne daß sie nach dem Schrumpfen sich bis unterhalb der Palette erstrecken, anliegen.
EP19870401242 1986-06-04 1987-06-03 Verfahren und Vorrichtung zum Verpacken einer Palettenladung in eine Hülle aus wärmeschrumpffähiger Kunststoffolie Expired - Lifetime EP0249534B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8608058A FR2599710B1 (fr) 1986-06-04 1986-06-04 Procede et installation pour l'emballage d'une charge palettisee dans une housse en matiere plastique thermoretractable
FR8608058 1986-06-04

Publications (3)

Publication Number Publication Date
EP0249534A1 EP0249534A1 (de) 1987-12-16
EP0249534B1 true EP0249534B1 (de) 1990-08-16
EP0249534B2 EP0249534B2 (de) 1997-05-14

Family

ID=9335996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870401242 Expired - Lifetime EP0249534B2 (de) 1986-06-04 1987-06-03 Verfahren und Vorrichtung zum Verpacken einer Palettenladung in eine Hülle aus wärmeschrumpffähiger Kunststoffolie

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Country Link
EP (1) EP0249534B2 (de)
DE (1) DE3764319D1 (de)
ES (1) ES2018034T5 (de)
FR (1) FR2599710B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8816085U1 (de) * 1988-12-24 1989-03-09 Msk-Verpackungs-Systeme Gmbh, 4190 Kleve, De
DE4423513C1 (de) * 1993-10-26 1996-02-01 Moellers Maschf Gmbh Vorrichtung zum Einschrumpfen einer Schrumpffolienhaube
FR2850949B1 (fr) 2003-02-10 2005-10-21 Thimon Dispositif et procede d'emballage d'une charge palettisee au moyen d'une housse a film en matiere plastique thermoretractable
EP2592006B1 (de) 2010-09-27 2014-07-16 Felix Waldner GmbH Verfahren zum Verpacken eines Packgutes und Verpackung für ein Packgut
DE102015122597A1 (de) * 2015-12-22 2017-06-22 Gebr. Heinemann SE & Co. KG Verfahren und Vorrichtung zur manipulationssicheren Versieglung von Packgut

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE335498B (de) * 1968-02-07 1971-05-24 E Gustavsson
FR2082861A5 (en) * 1970-03-25 1971-12-10 Hurdequint Louis Shrink-wrapping oven - drops over a pack to shrink the bag mouth uniformly using directional hot air jets
DE2020985A1 (de) * 1970-04-29 1971-12-16 Heraeus Gmbh W C Verfahren zum Herstellen von mit einer Kunststoffolie umhuellten Gutstapeln
DE3014369A1 (de) * 1980-04-15 1981-10-22 Ing. Paul Joosten Verpackungstechnik, 4180 Goch Verfahren und vorrichtung zum aufschrumpen einer folienhuelle

Also Published As

Publication number Publication date
DE3764319D1 (de) 1990-09-20
FR2599710A1 (fr) 1987-12-11
EP0249534B2 (de) 1997-05-14
EP0249534A1 (de) 1987-12-16
ES2018034T5 (es) 1997-10-16
FR2599710B1 (fr) 1989-03-24
ES2018034B3 (es) 1991-03-16

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