EP1060988A1 - Method and device for making and applying a flexible heat-shrinkable hood on palletized load - Google Patents

Method and device for making and applying a flexible heat-shrinkable hood on palletized load Download PDF

Info

Publication number
EP1060988A1
EP1060988A1 EP00410053A EP00410053A EP1060988A1 EP 1060988 A1 EP1060988 A1 EP 1060988A1 EP 00410053 A EP00410053 A EP 00410053A EP 00410053 A EP00410053 A EP 00410053A EP 1060988 A1 EP1060988 A1 EP 1060988A1
Authority
EP
European Patent Office
Prior art keywords
sheath
cover
load
arm
depositing
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
EP00410053A
Other languages
German (de)
French (fr)
Other versions
EP1060988B1 (en
Inventor
Jean-Paul Charles Martin Cocher
Georges Jaconelli
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.)
THIMON
Original Assignee
Thimon SAS
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 Thimon SAS filed Critical Thimon SAS
Publication of EP1060988A1 publication Critical patent/EP1060988A1/en
Application granted granted Critical
Publication of EP1060988B1 publication Critical patent/EP1060988B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the invention relates to a shaping method and device and depositing a flexible heat-shrinkable cover on a palletized load, said cover being constituted by a bellows sheath.
  • the packaging of palletized loads under heat shrink film took off with the appearance of the bellows sheath allowing the film to be presented on a reel, build a waterproof cover by welding and cutting transverse, to mechanize the opening of this cover by spreading the four ends of the bellows of the sheath.
  • a coil for unwinding the heat-shrinkable sheath is placed on the ground, and its axis extends parallel to the conveyor of transfer of the palletized load.
  • the unrolled sheath rises vertically along of the machine to position its opening about three to four meters from the ground .
  • the sheath positioning operation when replacing the coil forces the operator to manually insert the sheath into the rollers of the opening system. This painful operation, as are also the maintenance interventions of the sheath opening device, requires the presence protective gateways and access ladders that increase the size and cost of installation.
  • Another type of machine unrolls the sheath vertically, from of a coil on the ground, and transfer horizontally by opening over its entire height the welded sheath section, positioning it above the palletized load.
  • Such an arrangement is suitable for loads of small heights, but is not applicable to palletized loads of two to 2.5 meters from heights that are common in the industry; the opening of the sheath, which can reaching three meters in length is practically impossible in this configuration, and the machine would require a height of about six meters, this which is often incompatible with the height of the buildings intended to accommodate these facilities.
  • a third type of machine comprises a reel of film placed on the ground near an opening mechanism, welding and cutting film.
  • the sheath is presented with its opening arranged at the top, and a conformator is maintained inside the sheath to ensure precise positioning and guarantee sufficient pre-opening.
  • a gripping arm pinches the sheath at the four ends of the bellows, and unrolls it vertically from bottom to top; after performing the welding and cutting of the cover made, the gripping arm is animated an opening, rising and rotating movement to cover the palletized load placed nearby.
  • Document EP-A-92922 describes a machine for depositing a soft cover on a palletized load.
  • the film unwinding reel plastic cover is not placed on the ground, but is fixed to the part upper part of the machine chassis.
  • the film stored on the reel is already welded at regular intervals to build up closed funds, and also includes transverse cutting lines to obtain bags of fixed volumes. There is no automatic sheath opening mechanism.
  • the object of the invention is to improve the shaping process and removing the heat-shrinkable cover, avoiding the presence of walkways and access ladders for the adjustment and maintenance of mechanical components, and facilitating the installation of the sheath when changing the coil.
  • the unrolled part of the cover is open during the transfer phase to the drop-off station.
  • the cover is kept open at the four angles of the quadrangular end not welded during the unfolding phase of said sheath around the accumulator roller intervening during the movement of lowering for positioning without friction on the palletized load.
  • the method consists in presenting, from a coil on the ground, the sheath welded by a welder equipped with a cutting device placed near the sheath coil. All the mechanical parts are on the ground, and the ergonomics of the sheath installation station when changing the reel is optimized because this intervention becomes very fast.
  • Transverse welding of the sheath is carried out in masked time, well before the opening of the cover, and is very resistant when opening the cover after cooling. In its production standby position which can reach a few minutes or several hours, the internal volume of the sheath is protected by welding and avoids any penetration of ambient dust; this advantage is particularly important in glassworks where packaged products must be isolated from this dust, because they are not washed when they are filled.
  • the transfer arm is mounted in horizontal translation on a slide, which is movable in vertical translation along a fixed frame.
  • the mechanism sheath spacing is provided with four pendulums fitted with rollers gripping the sheath wound in the first position, and opening said sheath in the second position.
  • a movable depositing arm in the vertical direction is arranged under the pendulums, and is provided with fingers conformation and pinching for the resumption of the sheath at the four angles during removal on the load.
  • a hot air shrink frame is arranged above the delivery arm and is likely to move in the vertical direction allowing the internal travel of the pendulums when the depositing arm grips the sheath to setting up on the load.
  • the gripping robot can when transferring the cover above of the palletized load, rotate 90 ° relative to a vertical axis.
  • This possibility of the machine allows, from a double or triple station coil, avoid rotation much more difficult, palletized loads having a load section with respect to the direction of travel of the conveyor, incompatible with the width / bellows constraints of the sheath; this case is frequent in the liquid food market where the size of the pallets are 1000 x 1200 mm and 1000 x 600 mm on the same line of production.
  • the length of the load on the conveyor is 1200 or 600 mm; and the second format is generally rotated 90 ° under the machine, the largest side of the load being parallel to the axis of the conveyor and parallel to the axis of the spool.
  • the palletized load 1 is being transferred to the covering station, and is carried by a chain or roller table 3.
  • a reel 4 for storing a sheath or heat-shrinkable cover 2 is placed at the ground level, on a reel next to a chassis 7 of a gripping robot R.
  • the bellows sheath 2 is folded flat after winding on the coil 4, then is then unrolled and held in vertical position with the bellows stressed in opening by a positioning member 6.
  • a heat seal 5 of the sheath 2 is placed on the positioning member 6.
  • a welder 15 is composed of two movable jaws moving horizontally and symmetrically with respect to the positioning member 6.
  • upper part of the welder 15 includes a linear cutting device 16 composed of an actuating cylinder and a straight cutting blade.
  • the gripping robot R comprises a transfer arm 8 carried by a slide 30 movable in vertical translation on the chassis 7, a roller motorized accumulator 9 equipped with an internal retaining clamp 10, and a balance system 11 each provided with four gripping rollers 12.
  • the spacers 11 are provided by two pneumatic cylinders associated with hydraulic blockers and gear sectors 14 allowing synchronized spreading and closing movements of pendulums 11.
  • a removal arm 18 of the cover 2 can also slide the along the chassis 7, and carries four fingers 17 of conformation and pinching of the sheath 2. While bringing the load 1, the cover beforehand made up, is kept open by the pendulums 11 above the post of cover. . The removal arm 18 is in the cover recovery position by fingers 17.
  • the storage coil 4 of the heat-shrinkable sheath 2 is in waiting on the reel; and the unrolled sheath 2 is kept centered by the member bellows separation positioner 6.
  • the welder 15 carried out the transverse heat seal 5 of the sheath 2, which rests on the member positioner 6 while precisely maintaining the sheath 2 on standby.
  • detail A in FIG. 1 is a cross section of the sheath 2 very little open; detail B of FIG. 1 is a cross section of the cover in open position.
  • Figure 2 shows the next step, during the movement of lowering of the cover around the palletized load 1.
  • the fingers 17 of the arm of removal 18 keep the cover open, and the gripping rollers 12 of the pendulums 11 ensure the state of continuous opening in order to limit the friction of the film 2 against the upper corners of the palletized load 1.
  • the accumulator roller 9 is motorized in the direction of movement, and the retaining clip 10 is open to free the area gripping film 2 at the heat seal 5.
  • the gripping rollers 12 move apart to release the cover, allowing it to continue moving downhill until coming to rest on the palletized load 1.
  • the depositing arm 18 of the cover is at the end of the descent stroke.
  • the handling table of the load 1 palletized can be fitted with a lifting device 32 to optimize the positioning of the cover at the base of the support pallet.
  • Exceeded of the sheath 2 is generally intended to be pressed under the lower plane of the support pallet during the film retraction phase, in order to secure the load 1 and the support palette.
  • the arm of transfer 8 of the gripping robot R is animated by a first movement of horizontal translation of, then a second downward movement of so as to prepare the cover for the next palette.
  • the height of this pallet and the corresponding length of the cover, is measured by through an additional measuring device.
  • the pendulums 11 are found in the reconciled state during this transfer phase.
  • Figure 4/1 the gripping robot R is positioned to authorize the introduction of the gripping rollers 12 of the pendulums 11 between the bellows of the sheath 2.
  • Figure 4/2 is a horizontal section in the plane of the rollers of gripping 12, and Figure 4/3 shows the bellows of the sheath 2 pinched by the gripping rollers 12.
  • the depositing arm 18 is returned to the position initial raised, and is ready for a new hooding operation.
  • FIG. 5 represents the step of welding and cutting the sheath 2 after its winding around the storage roller 9, and the vertical displacement of the transfer arm 8 upwards. As soon as the jaws of the welder 15 are brought together to achieve heat seal 5, the cut is made by moving the knife 16. The gripping robot R then transfers the cover above the hood without waiting for the end of the welding
  • the pendulums 11 are actuated towards the discarded state for ensure the opening of the non-welded part of the cover.
  • Figure 6 is a plan view of the gripping robot R in position A for winding and cutting the cover, then in position B for removal on load 1 palletized after vertical and horizontal transfer to position the cover open above the load 1. This case corresponds to a load 1 transferred to the conveyor 3, the length of the pallet being in the forward direction of the transporter 3.
  • Figure 7 is an identical view to Figure 6 in the case of a load transferred to the conveyor 3, the length of the pallet being perpendicular to the forward direction of the transporter.
  • the gripping robot R rotates 90 ° during its transfer movement from position A to the position B.
  • Figures 1 to 7 represent only the phase of hooding, the shrinkage phase of the heat-shrinkable film being carried out on a downstream station of the overwrapping machine.
  • the rates of a machine according to Figures 1 to 7 can reach 200 pallet loads per hour; in place palletized loads, it is possible to directly cover any other type of products, for example household appliances.
  • FIGS 8/1 to 8/3 show a complete machine carrying out the covering and retraction on the same post.
  • a hot air shrinkage frame 19 is positioned above and moving parallel to the depositing arm 18 of the sheath 2.
  • the pendulums 11 for opening the gripping robot R come position the open part of the cover inside the retraction frame 19 to allow the depositing arm 18 to grasp it and then cover the charge.
  • the cover being deposited on the load 1, the frame 19 ensures the retraction heat shrink film by horizontally blowing a jet of hot air against film 2 according to two distinct cycles:
  • the load 1 is placed on the conveyor 3 which is equipped a lifting table allowing the shaping of a fold of the film shrunk under the load laying plan.
  • the depositing arm 18 sets up the cover 2 after lifting the load 1, and the retraction frame 19 retracts in first the lower part of the cover, then the vertical sides of the cover during the gradual ascent.
  • Figure 8/3 shows the case of a cover 2 placed on a load 1 it even placed on a handling pallet 21.
  • a sheet of plastic material 20 is interposed between the load 1 and the pallet 21 support.
  • Drop arm 18 remains in the low position, and the four fingers 17 ensure the positioning of the cover.
  • the retraction frame 19 retracts the film 2 from top to bottom, thus retracting the side faces first, positioned at the bottom above of the depositing arm 18 to retract the cover at the height of the plane upper part of the pallet 21.
  • the cover and the projecting part outside the film format pallets are sealed to each other under the effect of heat.
  • the depositing arm 18 is then released downward or laterally to complete the retraction of the bottom of the cover.
  • This application case is common during the packaging of loads composed of glass containers, for example bottles, the envelope formed to be sealed on all six sides of the charge. A retraction from the bottom up, as in the previous case, trapped in the waterproofed cover after heat sealing, a volume of air which would affect the load stability normally provided by packaging.
  • the rates for the type of machines according to figures 8.1 to 8.3 can reach 120 palletized loads per hour, with a reduced footprint.

Abstract

The device for forming and placing a thermo-retractable cover on a load (1) comprises a gripping robot (R). The robot comprises a motorized accumulator roller (9), on which is wound a part of the wrapping, held by a retaining clip (10). It also comprises an arm (8) for transferring the wrapping between a winding and cutting position and placing position of the cover on the palletized load. The transfer arm translates horizontally on a slide (30) which translates vertically along a fixed frame (7). The wrapping spacing mechanism is provided with four balancing beams (11) having rollers (12) for gripping the wrapping in the first position and opening it in the second position.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention est relative à un procédé et un dispositif de mise en forme et de dépose d'une housse souple thermorétractable sur une charge palettisée, ladite housse étant constituée par une gaine à soufflets. L'emballage des charges palettisées sous film thermorétractable a pris son plein essor avec l'apparition de la gaine à soufflets permettant de présenter le film en bobine, de constituer une housse étanche en réalisant une soudure et une coupe transversales, de mécaniser l'ouverture de cette housse en écartant les quatre extrémités des soufflets de la gaine.The invention relates to a shaping method and device and depositing a flexible heat-shrinkable cover on a palletized load, said cover being constituted by a bellows sheath. The packaging of palletized loads under heat shrink film took off with the appearance of the bellows sheath allowing the film to be presented on a reel, build a waterproof cover by welding and cutting transverse, to mechanize the opening of this cover by spreading the four ends of the bellows of the sheath.

Etat de la techniqueState of the art

La plupart des machines connues possèdent un dispositif d'ouverture de la gaine placé au-dessus de la charge palettisée, celle-ci étant introduite selon un cycle séquentiel automatisé dans la machine par l'intermédiaire d'un transporteur à rouleaux ou à chaínes.Most known machines have an opening device of the sheath placed above the palletized load, the latter being introduced according to an automated sequential cycle in the machine via a roller or chain conveyor.

Dans ces machines, une bobine de déroulement de la gaine thermorétractable est placée au sol, et son axe s'étend parallèlement au transporteur de transfert de la charge palettisée. La gaine déroulée monte verticalement le long de la machine pour positionner son ouverture à environ trois à quatre mètres du sol . L'opération de mise en place de la gaine lors du remplacement de la bobine, contraint l'opérateur à introduire manuellement la gaine dans les rouleaux du système d'ouverture. Cette opération pénible, comme le sont également les interventions d'entretien du dispositif d'ouverture de la gaine, impose la présence de passerelles de protection et d'échelles d'accès qui augmentent l'encombrement et le coût de l'installation.In these machines, a coil for unwinding the heat-shrinkable sheath is placed on the ground, and its axis extends parallel to the conveyor of transfer of the palletized load. The unrolled sheath rises vertically along of the machine to position its opening about three to four meters from the ground . The sheath positioning operation when replacing the coil, forces the operator to manually insert the sheath into the rollers of the opening system. This painful operation, as are also the maintenance interventions of the sheath opening device, requires the presence protective gateways and access ladders that increase the size and cost of installation.

Un autre type de machine déroule la gaine verticalement, à partir d'une bobine au sol , et transfert horizontalement en ouvrant sur toute sa hauteur le tronçon de gaine soudé, en le positionnant au-dessus de la charge palettisée .Another type of machine unrolls the sheath vertically, from of a coil on the ground, and transfer horizontally by opening over its entire height the welded sheath section, positioning it above the palletized load.

Un tel agencement convient pour des charges de faibles hauteurs, mais n'est pas applicable à des charges palettisées de deux à 2,5 mètres de hauteur qui sont fréquentes dans l'industrie ; l'ouverture de la gaine, qui peut atteindre trois mètres de longueur est pratiquement impossible dans cette configuration, et la machine nécessiterait une hauteur de six mètres environ, ce qui est souvent incompatible avec la hauteur des bâtiments destinés à accueillir ces installations.Such an arrangement is suitable for loads of small heights, but is not applicable to palletized loads of two to 2.5 meters from heights that are common in the industry; the opening of the sheath, which can reaching three meters in length is practically impossible in this configuration, and the machine would require a height of about six meters, this which is often incompatible with the height of the buildings intended to accommodate these facilities.

Enfin, un troisième type de machine est utilisé à ce jour ; il comporte une bobine de film placée au sol à proximité d'un mécanisme d 'ouverture, de soudure et de coupe du film. La gaine est présentée avec son ouverture disposée en haut , et un conformateur est maintenu à 1 ' intérieur de la gaine pour en assurer un positionnement précis et garantir une préouverture suffisante.Finally, a third type of machine is used today; it comprises a reel of film placed on the ground near an opening mechanism, welding and cutting film. The sheath is presented with its opening arranged at the top, and a conformator is maintained inside the sheath to ensure precise positioning and guarantee sufficient pre-opening.

Un bras de préhension pince la gaine aux quatre extrémités des soufflets, et la déroule verticalement de bas en haut ; après avoir réalisé la soudure et la coupe de la housse constituée, le bras de préhension est animé d'un mouvement d 'ouverture , de montée et de rotation pour venir coiffer la charge palettisée placée à proximité .A gripping arm pinches the sheath at the four ends of the bellows, and unrolls it vertically from bottom to top; after performing the welding and cutting of the cover made, the gripping arm is animated an opening, rising and rotating movement to cover the palletized load placed nearby.

Le document EP-A-92922 décrit une machine pour la dépose d'une housse souple sur une charge palettisée. La bobine de déroulement du film plastique de la housse n'est pas placée au sol, mais est fixée à la partie supérieure du châssis de la machine. Le film stocké sur la bobine est déjà soudé à intervalles réguliers pour constituer des fonds fermés, et comporte de plus des lignes de découpe transversales pour obtenir des sacs de volumes fixes. Il n'y a pas de mécanisme d'ouverture automatique de la gaine.Document EP-A-92922 describes a machine for depositing a soft cover on a palletized load. The film unwinding reel plastic cover is not placed on the ground, but is fixed to the part upper part of the machine chassis. The film stored on the reel is already welded at regular intervals to build up closed funds, and also includes transverse cutting lines to obtain bags of fixed volumes. There is no automatic sheath opening mechanism.

Objet de l'inventionSubject of the invention

L'objet de l'invention consiste à améliorer le procédé de mise en forme et de dépose de la housse thermorétractable, évitant la présence de passerelles et d 'échelles d'accès pour le réglage et l'entretien des organes mécaniques, et facilitant la mise en place de la gaine lors du changement de bobine.The object of the invention is to improve the shaping process and removing the heat-shrinkable cover, avoiding the presence of walkways and access ladders for the adjustment and maintenance of mechanical components, and facilitating the installation of the sheath when changing the coil.

Les étapes du procédé selon l'invention consistent à:

  • disposer la gaine sur une bobine de stockage placée sur un dévidoir au voisinage du sol,
  • dérouler la gaine à partir du dévidoir, en la maintenant en position verticale avec les soufflets sollicités en écartement par un organe positionneur,
  • enrouler une partie de la gaine sur un rouleau accumulateur solidarisé à un bras de transfert d'un robot de préhension,
  • couper la gaine à une longueur prédéterminée et souder la partie médiane de la gaine au moyen d'une soudeuse pour obtenir une housse à fond étanche,
  • et transférer la housse enroulée sur le rouleau accumulateur vers un poste de dépose sur la charge.
The steps of the method according to the invention consist in:
  • place the sheath on a storage reel placed on a reel near the ground,
  • unwind the sheath from the reel, keeping it in the vertical position with the bellows biased apart by a positioning member,
  • wind a part of the sheath on an accumulator roller secured to a transfer arm of a gripping robot,
  • cut the sheath to a predetermined length and weld the middle part of the sheath using a welder to obtain a waterproof bottom cover,
  • and transfer the cover wound on the accumulator roller to a deposit station on the load.

La partie non enroulée de la housse est ouverte pendant la phase de transfert vers le poste de dépose. La housse est maintenue ouverte aux quatre angles de l'extrémité quadrangulaire non soudée lors de la phase de déroulement de ladite gaine autour du rouleau accumulateur intervenant pendant le mouvement de descente pour la mise en place sans frottement sur la charge palettisée. The unrolled part of the cover is open during the transfer phase to the drop-off station. The cover is kept open at the four angles of the quadrangular end not welded during the unfolding phase of said sheath around the accumulator roller intervening during the movement of lowering for positioning without friction on the palletized load.

Le procédé consiste à présenter , à partir d'une bobine au sol, la gaine soudée par une soudeuse équipée d ' un dispositif de coupe placé à proximité de la bobine de gaine. L'ensemble des organes mécaniques est au sol, et l'ergonomie du poste de mise en place de la gaine lors du changement de bobine est optimisée car cette intervention devient très rapide. La soudure transversale de la gaine est réalisée en temps masqué, bien avant l'ouverture de la housse, et est très résistante lors de l'ouverture de la housse après refroidissement. Dans sa position d'attente de production pouvant atteindre quelques minutes ou plusieurs heures, le volume interne de la gaine est protégée par la soudure et évite toute pénétration de poussière ambiante ; cet avantage est particulièrement important dans les verreries où les produits emballés doivent impérativement être isolés de cette poussière, car ils ne sont pas lavés lors de leur remplissage .The method consists in presenting, from a coil on the ground, the sheath welded by a welder equipped with a cutting device placed near the sheath coil. All the mechanical parts are on the ground, and the ergonomics of the sheath installation station when changing the reel is optimized because this intervention becomes very fast. Transverse welding of the sheath is carried out in masked time, well before the opening of the cover, and is very resistant when opening the cover after cooling. In its production standby position which can reach a few minutes or several hours, the internal volume of the sheath is protected by welding and avoids any penetration of ambient dust; this advantage is particularly important in glassworks where packaged products must be isolated from this dust, because they are not washed when they are filled.

Le robot de préhension du dispositif de mise en forme et de dépose selon l'invention comprend :

  • une bobine de stockage de la gaine,
  • des moyens de soudage et de coupe de la gaine pour constituer ladite housse,
  • un mécanisme d'écartement de la gaine pendant le mouvement de descente vers la charge,
  • un rouleau accumulateur motorisé sur lequel est enroulée une partie de la gaine maintenue par une pince de retenue,
  • et un bras de transfert du rouleau accumulateur entre une première position d'enroulement et de coupe de la gaine, et une deuxième position de dépose de la housse sur la charge palettisée.
The robot for gripping the shaping and depositing device according to the invention comprises:
  • a sheath storage coil,
  • means for welding and cutting the sheath to form said cover,
  • a sheath spreading mechanism during the downward movement towards the load,
  • a motorized accumulator roller on which is wound part of the sheath held by a retaining clip,
  • and an arm for transferring the accumulator roller between a first position for winding and cutting the sheath, and a second position for depositing the cover on the palletized load.

Le bras de transfert est monté en translation horizontale sur un coulisseau, lequel est mobile en translation verticale le long d'un châssis fixe. Le mécanisme d'écartement de la gaine est doté de quatre balanciers munis de galets de préhension de la gaine enroulée dans la première position, et d'ouverture de ladite gaine dans la deuxième position. The transfer arm is mounted in horizontal translation on a slide, which is movable in vertical translation along a fixed frame. The mechanism sheath spacing is provided with four pendulums fitted with rollers gripping the sheath wound in the first position, and opening said sheath in the second position.

Selon une caractéristique de l'invention, un bras de dépose mobile dans la direction verticale, est agencé sous les balanciers, et est pourvu de doigts de conformation et de pincement pour la reprise de la gaine aux quatre angles lors de la dépose sur la charge.According to a characteristic of the invention, a movable depositing arm in the vertical direction, is arranged under the pendulums, and is provided with fingers conformation and pinching for the resumption of the sheath at the four angles during removal on the load.

Un cadre de rétraction à air chaud est disposé au-dessus du bras de dépose et est susceptible de se déplacer dans la direction verticale en autorisant le débattement interne des balanciers lorsque le bras de dépose saisit la gaine pour la mise en place sur la charge.A hot air shrink frame is arranged above the delivery arm and is likely to move in the vertical direction allowing the internal travel of the pendulums when the depositing arm grips the sheath to setting up on the load.

Le robot de préhension peut lors du transfert de la housse au-dessus de la charge palettisée, pivoter de 90° par rapport à un axe vertical . Cette possibilité de la machine permet, à partir d'un poste double ou triple bobine, d'éviter la rotation beaucoup plus difficile, des charges palettisées présentant une section de charge par rapport au sens d'avancement du transporteur, incompatible avec les contraintes laize / soufflets de la gaine ; ce cas est fréquent dans le marché de l' alimentaire liquide où la dimension des palettes sont de 1000 x 1200 mm et de 1000 x 600 mm sur une même ligne de production . La longueur de la charge sur le transporteur est de 1200 ou de 600 mm ; et le deuxième format est généralement pivoté de 90° sous la machine, la face la plus grande de la charge étant parallèle à l' axe du transporteur et parallèle à l' axe de la bobine.The gripping robot can when transferring the cover above of the palletized load, rotate 90 ° relative to a vertical axis. This possibility of the machine allows, from a double or triple station coil, avoid rotation much more difficult, palletized loads having a load section with respect to the direction of travel of the conveyor, incompatible with the width / bellows constraints of the sheath; this case is frequent in the liquid food market where the size of the pallets are 1000 x 1200 mm and 1000 x 600 mm on the same line of production. The length of the load on the conveyor is 1200 or 600 mm; and the second format is generally rotated 90 ° under the machine, the largest side of the load being parallel to the axis of the conveyor and parallel to the axis of the spool.

Description sommaire des figuresBrief description of the figures

  • la figure 1 montre une vue schématique du dispositif de mise en forme et de dépose d'une housse souple thermorétractable selon l'invention, la charge palettisée étant en cours de transfert sous le poste de houssage;Figure 1 shows a schematic view of the shaping device and removal of a flexible heat-shrinkable cover according to the invention, the load palletized being transferred under the covering station;
  • la figure 2 montre l'étape suivante pendant le mouvement de descente de la housse autour de la charge 1 palettisée;Figure 2 shows the next step during the downward movement of the cover around the palletized load 1;
  • les figures 3, 4.1, 4.2, 4.3 et 5 montrent les différentes phases de préhension et d'enroulement du film par le robot, avant le transfert vers le poste de houssage; Figures 3, 4.1, 4.2, 4.3 and 5 show the different gripping phases and film rewinding by the robot, before transfer to the post of hooding;
  • la figure 6 est une vue en plan du robot de préhension dans la position A d'enroulement et de coupe de la housse, puis dans la position B de dépose sur la charge palettisée après transfert vertical et horizontal;Figure 6 is a plan view of the gripping robot in position A for winding and cutting the cover, then in position B for removal on the palletized load after vertical and horizontal transfer;
  • la figure 7 est une vue identique de la figure 6 d'une variante de réalisation;Figure 7 is an identical view to Figure 6 of an alternative embodiment;
  • la figure 8/1 montre le poste de houssage avec un cadre de rétraction à air chaud 19;Figure 8/1 shows the hooding station with an air shrink frame hot 19;
  • la figure 8/2 représente un détail de la figure 8.1, la charge 1 étant posée sur le transporteur équipé d'une table élévatrice pour la mise en forme d'un repli du film rétracté sous le plan de pose de la charge;Figure 8/2 shows a detail of Figure 8.1, the load 1 being placed on the transporter equipped with a lifting table for shaping a fold film shrunk under the load laying plane;
  • la figure 8/3 est une vue identique de la figure 8/2 d'une variante de réalisation, dans laquelle la charge est posée sur une palette de manutention, avec interposition d'une feuille de matière plastique entre la charge et la palette.Figure 8/3 is an identical view of Figure 8/2 of a variant of embodiment, in which the load is placed on a handling pallet, with interposition of a plastic sheet between the load and the palette.
Description d'un mode de réalisation préférentielDescription of a preferred embodiment

Sur la figure 1 , la charge palettisée 1 est en cours de transfert sous le poste de houssage, et est portée par une table à chaínes ou à rouleaux 3. Une bobine 4 de stockage d'une gaine ou housse thermorétractable 2 est placée au niveau du sol, sur un dévidoir à côté d'un châssis 7 d'un robot de préhension R. La gaine 2 à soufflets est pliée à plat après enroulement sur la bobine 4, puis est ensuite déroulée et maintenue en position verticale avec les soufflets sollicités en ouverture par un organe positionneur 6. Une liaison de thermosoudure 5 de la gaine 2 est placée sur l'organe positionneur 6.In Figure 1, the palletized load 1 is being transferred to the covering station, and is carried by a chain or roller table 3. A reel 4 for storing a sheath or heat-shrinkable cover 2 is placed at the ground level, on a reel next to a chassis 7 of a gripping robot R. The bellows sheath 2 is folded flat after winding on the coil 4, then is then unrolled and held in vertical position with the bellows stressed in opening by a positioning member 6. A heat seal 5 of the sheath 2 is placed on the positioning member 6.

Une soudeuse 15 est composée de deux mors mobiles se déplaçant horizontalement et symétriquement par rapport à l'organe positionneur 6. .La partie supérieure de la soudeuse 15 comporte un dispositif de coupe 16 linéaire composé d' un vérin d'actionnement et d' une lame de coupe rectiligne. A welder 15 is composed of two movable jaws moving horizontally and symmetrically with respect to the positioning member 6.. upper part of the welder 15 includes a linear cutting device 16 composed of an actuating cylinder and a straight cutting blade.

Le robot de préhension R comporte un bras de transfert 8 porté par un coulisseau 30 mobile en translation verticale sur le châssis 7, un rouleau accumulateur 9 motorisé équipé d'une pince de retenue 10 interne, et un système de balanciers 11 muni chacun de quatre galets de préhension 12. L'écartement des balanciers 11 est assuré par deux vérins pneumatiques associés à des bloqueurs hydrauliques et des secteurs d' engrenage 14 autorisant des mouvements d'écartement et de rapprochement synchronisés des balanciers 11.The gripping robot R comprises a transfer arm 8 carried by a slide 30 movable in vertical translation on the chassis 7, a roller motorized accumulator 9 equipped with an internal retaining clamp 10, and a balance system 11 each provided with four gripping rollers 12. The spacers 11 are provided by two pneumatic cylinders associated with hydraulic blockers and gear sectors 14 allowing synchronized spreading and closing movements of pendulums 11.

Un bras de dépose 18 de la housse 2 peut également coulisser le long du châssis 7, et porte quatre doigts 17 de conformation et de pincement de la gaine 2. Pendant l' amenée de la charge 1, la housse préalablement confectionnée , est maintenue ouverte par les balanciers 11 au-dessus du poste de houssage. .Le bras de dépose 18 est en position de reprise de la housse par les doigts 17.A removal arm 18 of the cover 2 can also slide the along the chassis 7, and carries four fingers 17 of conformation and pinching of the sheath 2. While bringing the load 1, the cover beforehand made up, is kept open by the pendulums 11 above the post of cover. .The removal arm 18 is in the cover recovery position by fingers 17.

La bobine de stockage 4 de la gaine thermorétractable 2 est en attente sur le dévidoir; et la gaine 2 déroulée est maintenue centrée par l'organe positionneur 6 de séparation des soufflets. La soudeuse 15 a effectué la thermosoudure 5 transversale de la gaine 2, laquelle repose sur l'organe positionneur 6 en maintenant avec précision la gaine 2 en attente .The storage coil 4 of the heat-shrinkable sheath 2 is in waiting on the reel; and the unrolled sheath 2 is kept centered by the member bellows separation positioner 6. The welder 15 carried out the transverse heat seal 5 of the sheath 2, which rests on the member positioner 6 while precisely maintaining the sheath 2 on standby.

Le détail A de la figure 1 est une section transversale de la gaine 2 très peu ouverte ; le détail B de la figure 1 est une section transversale de la housse en position ouverte .The detail A in FIG. 1 is a cross section of the sheath 2 very little open; detail B of FIG. 1 is a cross section of the cover in open position.

La figure 2 représente l'étape suivante, pendant le mouvement de descente de la housse autour de la charge 1 palettisée . Les doigts 17 du bras de dépose 18 maintiennent la housse ouverte, et les galets de préhension 12 des balanciers 11 assurent l'état d'ouverture en continu afin de limiter le frottement du film 2 contre les angles supérieurs de la charge 1 palettisée. Figure 2 shows the next step, during the movement of lowering of the cover around the palletized load 1. The fingers 17 of the arm of removal 18 keep the cover open, and the gripping rollers 12 of the pendulums 11 ensure the state of continuous opening in order to limit the friction of the film 2 against the upper corners of the palletized load 1.

Dans cette étape, le rouleau accumulateur 9 est motorisé dans le sens du déroulement, et la pince de retenue 10 est ouverte pour libérer la zone d'agrippage du film 2 au niveau de la thermosoudure 5. Après le dégagement de la zone d'agrippage du rouleau accumulateur 9 , les galets de préhension 12 s'écartent pour libérer la housse, en autorisant la poursuite de son mouvement de descente jusqu'à la venue en appui sur la charge 1 palettisée .In this step, the accumulator roller 9 is motorized in the direction of movement, and the retaining clip 10 is open to free the area gripping film 2 at the heat seal 5. After the release of the gripping zone of the accumulator roller 9, the gripping rollers 12 move apart to release the cover, allowing it to continue moving downhill until coming to rest on the palletized load 1.

Lors de l'étape illustrée à la figure 3, le bras de dépose 18 de la housse se trouve en fin de course de descente . La table de manutention de la charge 1 palettisée peut être équipée d'un dispositif élévateur 32 pour optimiser le positionnement de la housse à la base de la palette support. Un dépassement de la gaine 2 est généralement prévu pour être plaqué sous le plan inférieur de la palette support pendant la phase de rétraction du film, afin de solidariser la charge 1 et la palette support.During the step illustrated in FIG. 3, the depositing arm 18 of the cover is at the end of the descent stroke. The handling table of the load 1 palletized can be fitted with a lifting device 32 to optimize the positioning of the cover at the base of the support pallet. Exceeded of the sheath 2 is generally intended to be pressed under the lower plane of the support pallet during the film retraction phase, in order to secure the load 1 and the support palette.

Dès que la housse a quitté les galets de préhension 12, le bras de transfert 8 du robot de préhension R est animé d'un premier mouvement de translation horizontale de, puis d'un deuxième mouvement de descente de manière à préparer la housse destinée à la palette suivante. La hauteur de cette palette et la longueur correspondante de la housse, est mesurée par l'intermédiaire d'un dispositif de mesure annexe. Les balanciers 11 se trouvent dans l'état rapproché lors de cette phase de transfert.As soon as the cover has left the gripping rollers 12, the arm of transfer 8 of the gripping robot R is animated by a first movement of horizontal translation of, then a second downward movement of so as to prepare the cover for the next palette. The height of this pallet and the corresponding length of the cover, is measured by through an additional measuring device. The pendulums 11 are found in the reconciled state during this transfer phase.

Une ouverture est ménagée dans le rouleau accumulateur 9 pour positionner la zone d'agrippage de la thermosoudure 5 dans la pince de retenue 10 après indexage par rotation du rouleau 9. Dans cette étape, les galets de préhension 12 sont écartés de part et d' autre de l'organe positionneur 6, et la thermosoudure 5 est prise dans la pince 10 .An opening is made in the accumulator roller 9 to position the grip area of the heat seal 5 in the retaining clamp 10 after indexing by rotation of the roller 9. In this step, the gripping rollers 12 are separated from either side of the positioning member 6, and the heat seal 5 is taken in the clamp 10.

Sur la figure 4/1, le robot de préhension R est positionné pour autoriser l'introduction des galets de préhension 12 des balanciers 11 entre les soufflets de la gaine 2. La figure 4/2 est une coupe horizontale dans le plan des galets de préhension 12, et la figure 4/3 montre les soufflets de la gaine 2 pincés par les galets de préhension12. Le bras de dépose 18 est retourné vers la position initiale relevée, et est prêt pour une nouvelle opération de houssage.In Figure 4/1, the gripping robot R is positioned to authorize the introduction of the gripping rollers 12 of the pendulums 11 between the bellows of the sheath 2. Figure 4/2 is a horizontal section in the plane of the rollers of gripping 12, and Figure 4/3 shows the bellows of the sheath 2 pinched by the gripping rollers 12. The depositing arm 18 is returned to the position initial raised, and is ready for a new hooding operation.

La figure 5 représente l'étape de soudage et de coupe de la gaine 2 après son enroulement autour du rouleau accumulateur 9, et le déplacement vertical du bras de transfert 8 vers le haut. Dès que les mors de la soudeuse 15 sont rapprochés l'un de l'autre pour réaliser la thermosoudure 5, la coupe est opérée par déplacement du couteau 16 .Le robot de préhension R transfert ensuite la housse au-dessus du poste de houssage sans attendre la fin du cycle de soudageFIG. 5 represents the step of welding and cutting the sheath 2 after its winding around the storage roller 9, and the vertical displacement of the transfer arm 8 upwards. As soon as the jaws of the welder 15 are brought together to achieve heat seal 5, the cut is made by moving the knife 16. The gripping robot R then transfers the cover above the hood without waiting for the end of the welding

Pendant la phase de translation horizontale du bras de transfert 8 au-dessus du poste de houssage, les balanciers 11 sont actionnés vers l'état écarté pour assurer l'ouverture de la partie non soudée de la housse.During the horizontal translation phase of the transfer arm 8 above the hooding station, the pendulums 11 are actuated towards the discarded state for ensure the opening of the non-welded part of the cover.

Le retour du robot de préhension R dans la position de la figure 1 permet aux doigts 17 du bras de dépose 18 de saisir la housse aux quatre extrémités des soufflets écartés. Dans le même temps, la charge 1 palettisée et houssée est évacuée par la table de transfert, et une nouvelle charge est introduite sous la machine.The return of the gripping robot R to the position of FIG. 1 allows the fingers 17 of the depositing arm 18 to grasp the cover at the four ends of the bellows spread. At the same time, the palletized and covered load 1 is evacuated by the transfer table, and a new charge is introduced under the machine.

La figure 6 est une vue en plan du robot de préhension R dans la position A d'enroulement et de coupe de la housse , puis dans la position B de dépose sur la charge 1 palettisée après transfert vertical et horizontal pour positionner la housse ouverte au - dessus de la charge 1. Ce cas de figure correspond à une charge 1 transférée sur le transporteur 3 , la longueur de la palette étant dans le sens d'avancement du transporteur 3.Figure 6 is a plan view of the gripping robot R in position A for winding and cutting the cover, then in position B for removal on load 1 palletized after vertical and horizontal transfer to position the cover open above the load 1. This case corresponds to a load 1 transferred to the conveyor 3, the length of the pallet being in the forward direction of the transporter 3.

La figure 7 est une vue identique de la figure 6 dans le cas d'une charge transférée sur le transporteur 3, la longueur de la palette étant perpendiculaire au sens d'avancement du transporteur. Dans ce cas , le robot de préhension R pivote de 90° pendant son mouvement de transfert de la position A vers la position B.Figure 7 is an identical view to Figure 6 in the case of a load transferred to the conveyor 3, the length of the pallet being perpendicular to the forward direction of the transporter. In this case, the gripping robot R rotates 90 ° during its transfer movement from position A to the position B.

On remarque que les figures 1 à 7 représentent uniquement la phase de houssage, la phase de rétraction du film thermorétractable étant réalisée sur un poste aval de la machine de suremballage. Les cadences d 'une machine selon les figures 1 à 7 peuvent atteindre 200 charges palettisées à l'heure ; à la place des charges palettisées, il est possible de housser directement tout autre type de produits, par exemple des appareils électroménagers.Note that Figures 1 to 7 represent only the phase of hooding, the shrinkage phase of the heat-shrinkable film being carried out on a downstream station of the overwrapping machine. The rates of a machine according to Figures 1 to 7 can reach 200 pallet loads per hour; in place palletized loads, it is possible to directly cover any other type of products, for example household appliances.

Les figures 8/1 à 8/3 montrent une machine complète réalisant le houssage et la rétraction sur le même poste. Un cadre de rétraction à air chaud 19 est positionné au - dessus et se déplaçant parallèlement au bras de dépose 18 de la gaine 2. Les balanciers 11 d ' ouverture du robot de préhension R viennent positionner la partie ouverte de la housse à l'intérieur du cadre de rétraction 19 pour permettre au bras de dépose 18 de la saisir et de recouvrir ensuite la charge. La housse étant déposée sur la charge 1, le cadre 19 assure la rétraction du film thermorétractable en soufflant horizontalement un jet d ' air chaud contre le film 2 selon deux cycles distincts :Figures 8/1 to 8/3 show a complete machine carrying out the covering and retraction on the same post. A hot air shrinkage frame 19 is positioned above and moving parallel to the depositing arm 18 of the sheath 2. The pendulums 11 for opening the gripping robot R come position the open part of the cover inside the retraction frame 19 to allow the depositing arm 18 to grasp it and then cover the charge. The cover being deposited on the load 1, the frame 19 ensures the retraction heat shrink film by horizontally blowing a jet of hot air against film 2 according to two distinct cycles:

Sur la figure 8/2, la charge 1 est posée sur le transporteur 3 lequel est équipé d'une table élévatrice permettant la mise en forme d'un repli du film rétracté sous le plan de pose de la charge. Le bras de dépose 18 met en place la housse 2 après le relèvement de la charge 1, et le cadre de rétraction 19 rétracte en premier lieu la partie basse de la housse, puis les faces verticales de la housse lors de la remontée progressive.In Figure 8/2, the load 1 is placed on the conveyor 3 which is equipped a lifting table allowing the shaping of a fold of the film shrunk under the load laying plan. The depositing arm 18 sets up the cover 2 after lifting the load 1, and the retraction frame 19 retracts in first the lower part of the cover, then the vertical sides of the cover during the gradual ascent.

La figure 8/3 représente le cas d 'une housse 2 placée sur une charge 1 elle même posée sur une palette de manutention 21. Une feuille de matière plastique 20 est intercalée entre la charge 1 et la palette 21 support. Le bras de dépose 18 reste en position basse , et les quatre doigts 17 assurent le positionnement de la housse. Le cadre de rétraction 19 effectue la rétraction du film 2 de haut en bas, rétractant ainsi en premier les faces latérales, se positionne en partie basse au-dessus du bras de dépose 18 pour rétracter la housse à hauteur du plan supérieur de la palette 21. La housse et la partie débordante extérieure à la palette du format de film sont scellées l'une à l'autre sous l'effet de la chaleur. Le bras de dépose 18 se dégage ensuite vers le bas ou latéralement pour terminer la rétraction du bas de la housse. Ce cas d'application est courant lors de l'emballage de charges composées de contenants en verre, par exemple des bouteilles, l'enveloppe constituée devant être étanche sur les six faces de la charge. Une rétraction du bas vers le haut, comme dans le cas précédant, emprisonnerait dans la housse rendue étanche après le thermoscellage, un volume d 'air qui nuirait à la stabilité de la charge normalement assurée par l'emballage.Figure 8/3 shows the case of a cover 2 placed on a load 1 it even placed on a handling pallet 21. A sheet of plastic material 20 is interposed between the load 1 and the pallet 21 support. Drop arm 18 remains in the low position, and the four fingers 17 ensure the positioning of the cover. The retraction frame 19 retracts the film 2 from top to bottom, thus retracting the side faces first, positioned at the bottom above of the depositing arm 18 to retract the cover at the height of the plane upper part of the pallet 21. The cover and the projecting part outside the film format pallets are sealed to each other under the effect of heat. The depositing arm 18 is then released downward or laterally to complete the retraction of the bottom of the cover. This application case is common during the packaging of loads composed of glass containers, for example bottles, the envelope formed to be sealed on all six sides of the charge. A retraction from the bottom up, as in the previous case, trapped in the waterproofed cover after heat sealing, a volume of air which would affect the load stability normally provided by packaging.

Les cadences pour le type des machines selon les figures 8.1 à 8.3 peuvent atteindre 120 charges palettisées à l'heure, avec un encombrement réduit.The rates for the type of machines according to figures 8.1 to 8.3 can reach 120 palletized loads per hour, with a reduced footprint.

Claims (10)

Procédé de mise en forme et de dépose d'une housse souple thermorétractable sur une charge (1) palettisée, ladite housse étant constituée par une gaine à soufflets, caractérisé par les étapes suivantes : disposer la gaine (2) sur une bobine (4) de stockage placée sur un dévidoir au voisinage du sol, dérouler la gaine (2) à partir du dévidoir, en la maintenant en position verticale avec les soufflets sollicités en écartement par un organe positionneur (6), enrouler une partie de la gaine (2) sur un rouleau accumulateur (9) solidarisé à un bras de transfert (8) d'un robot de préhension (R), couper la gaine à une longueur prédéterminée et souder la partie médiane de la gaine (2) au moyen d'une soudeuse pour obtenir une housse à fond étanche, et transférer la housse enroulée sur le rouleau accumulateur (9) vers un poste de dépose sur la charge (1). Process for forming and depositing a flexible heat-shrinkable cover on a palletized load (1), said cover being constituted by a bellows sheath, characterized by the following steps: place the sheath (2) on a storage reel (4) placed on a reel in the vicinity of the ground, unwind the sheath (2) from the reel, keeping it in a vertical position with the bellows biased apart by a positioning member (6), wind a part of the sheath (2) on an accumulator roller (9) secured to a transfer arm (8) of a gripping robot (R), cut the sheath to a predetermined length and weld the middle part of the sheath (2) using a welder to obtain a cover with a tight bottom, and transfer the cover wound on the accumulator roller (9) to a deposit station on the load (1). Procédé selon la revendication 1, caractérisé en ce que la partie non enroulée de la housse est ouverte pendant la phase de transfert vers le poste de dépose.Method according to claim 1, characterized in that the unrolled part cover is open during the transfer phase to the depositing station. Procédé selon la revendication 1 ou 2, caractérisé en ce que la housse enroulée horizontalement sur le rouleau accumulateur (9) subit un mouvement de pivotement d'un quart de tour pendant la phase de transfert vers le poste de dépose.Method according to claim 1 or 2, characterized in that the cover horizontally wound on the accumulator roller (9) undergoes a movement of quarter turn rotation during the transfer phase to the deposit. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la housse est maintenue ouverte aux quatre angles de l'extrémité quadrangulaire non soudée lors de la phase de déroulement de ladite gaine autour du rouleau accumulateur (9) intervenant pendant le mouvement de descente pour la mise en place sans frottement sur la charge (1) palettisée.Method according to one of claims 1 to 3, characterized in that the cover is kept open at all four corners of the quadrangular end not welded during the unwinding phase of said sheath around the roller accumulator (9) intervening during the downward movement for setting place without friction on the palletized load (1). Dispositif de mise en forme et de dépose d'une housse souple thermorétractable sur une charge palettisée, ladite housse étant formée par une gaine (2) à soufflets, laquelle est mise en place sur une charge (1) palettisée par l'intermédiaire d'un robot de préhension (R) comprenant : une bobine (4) de stockage de la gaine (2), des moyens de soudage et de coupe de la gaine pour constituer ladite housse, et un mécanisme d'écartement de la gaine pendant le mouvement de descente vers la charge (1), caractérisé en ce que le robot de préhension (R ) comporte de plus : un rouleau accumulateur (9) motorisé sur lequel est enroulée une partie de la gaine maintenue par une pince de retenue (10), et un bras de transfert (8) du rouleau accumulateur (9) entre une première position d'enroulement et de coupe de la gaine, et une deuxième position de dépose de la housse sur la charge (1) palettisée. Device for shaping and depositing a flexible heat-shrinkable cover on a palletized load, said cover being formed by a bellows sheath (2), which is placed on a load (1) palletized by means of a gripping robot (R) comprising: a sheath (4) for storing the sheath (2), means for welding and cutting the sheath to form said cover, and a sheath spacing mechanism during the downward movement towards the load (1), characterized in that the gripping robot (R) further comprises: a motorized accumulator roller (9) on which is wound part of the sheath held by a retaining clamp (10), and a transfer arm (8) of the accumulator roller (9) between a first position for winding and cutting the sheath, and a second position for depositing the cover on the palletized load (1). Dispositif selon la revendication 5, caractérisé en ce que le bras de transfert (8) est monté à translation horizontale sur un coulisseau (30), lequel est mobile en translation verticale le long d'un châssis (7) fixe, et que le mécanisme d'écartement du robot de préhension (R) peut pivoter de 90° selon le positionnement de la palette support sur le transporteur (3).Device according to claim 5, characterized in that the transfer arm (8) is mounted in horizontal translation on a slide (30), which is movable in vertical translation along a fixed frame (7), and that the mechanism distance between the gripping robot (R) can rotate 90 ° depending on the positioning of the support pallet on the conveyor (3). Dispositif selon la revendication 5 ou 6, caractérisé en ce que le mécanisme d'écartement de la gaine est doté de quatre balanciers (11) munis de galets de préhension (12) de la gaine enroulée dans la première position , et d'ouverture de ladite gaine dans la deuxième position.Device according to claim 5 or 6, characterized in that the mechanism sheath spacing is provided with four pendulums (11) provided with rollers gripping (12) of the sheath wound in the first position, and opening of said sheath in the second position. Dispositif selon la revendication 7, caractérisé en ce qu'un bras de dépose (18) mobile dans la direction verticale, est agencée sous les balanciers (11), et est pourvu de doigts (17) de conformation et de pincement pour la reprise de la gaine (2) aux quatre angles lors de la dépose sur la charge (1).Device according to claim 7, characterized in that a depositing arm (18) movable in the vertical direction, is arranged under the pendulums (11), and is provided with shaping and pinching fingers (17) for the recovery of the sheath (2) at the four angles when depositing on the load (1). Dispositif selon la revendication 8, caractérisé en ce qu'un cadre de rétraction (19) à air chaud est disposé au-dessus du bras de dépose (18), et est susceptible de se déplacer dans la direction verticale en autorisant le débattement interne des balanciers (11) lorsque le bras de dépose (18) saisit la gaine (2) pour la mise en place sur la charge (1).Device according to claim 8, characterized in that a retraction frame (19) with hot air is arranged above the depositing arm (18), and is likely to move in the vertical direction allowing the internal travel of the pendulums (11) when the depositing arm (18) grasps the sheath (2) for positioning on the load (1). Dispositif selon la revendication 9, caractérisé en ce que le cadre de rétraction (19) à air chaud devient actif pour la rétraction dès que la gaine (2) est positionnée par le bras de dépose (18) , soit de bas en haut après dégagement dudit bras, soit de haut en bas avec maintien de la gaine par ledit bras jusqu'à la fin de rétraction de la partie inférieure de la gaine.Device according to claim 9, characterized in that the frame hot air shrinkage (19) becomes active for shrinking as soon as the sheath (2) is positioned by the depositing arm (18), either from bottom to top after release of said arm, either from top to bottom with retention of the sheath by said arm up to the end of retraction of the lower part of the sheath.
EP20000410053 1999-06-10 2000-05-22 Method and device for making and applying a flexible heat-shrinkable hood on palletized load Expired - Lifetime EP1060988B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9907597 1999-06-10
FR9907597A FR2794720B1 (en) 1999-06-10 1999-06-10 METHOD AND DEVICE FOR FORMING AND DEPOSITING A FLEXIBLE HEAT SHRINK COVER ON A PALLETIZED LOAD

Publications (2)

Publication Number Publication Date
EP1060988A1 true EP1060988A1 (en) 2000-12-20
EP1060988B1 EP1060988B1 (en) 2005-12-07

Family

ID=9546849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000410053 Expired - Lifetime EP1060988B1 (en) 1999-06-10 2000-05-22 Method and device for making and applying a flexible heat-shrinkable hood on palletized load

Country Status (5)

Country Link
EP (1) EP1060988B1 (en)
DE (1) DE60024523T2 (en)
DK (1) DK1060988T3 (en)
ES (1) ES2254122T3 (en)
FR (1) FR2794720B1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1331168A1 (en) 2002-01-28 2003-07-30 Thimon Method and apparatus for wrapping a palettised load with a sleeve of stretch foil
EP1419966A1 (en) 2002-11-12 2004-05-19 Thimon Method and apparatus for applying a packaging hood of stretch foil on a palettized load
EP1510460A1 (en) * 2003-08-28 2005-03-02 OFFICINA MECCANICA SESTESE S.p.A. Method of and apparatus for the sealed overwrapping of a load using a tubular film of stretchable plastic material
EP1574433A1 (en) * 2004-03-11 2005-09-14 Thimon Method and apparatus for the manufacturing and applying at high speed of a packaging hood on a palettised load.
US7937910B2 (en) 2005-11-10 2011-05-10 Thimon Method and machine for preparing and depositing a stretch-film packaging sleeve on a palletized load
EP2336034A1 (en) 2009-12-21 2011-06-22 MSK - Verpackungs-Systeme GmbH Method and device for wrapping a stack of goods with a film
EP2377762A1 (en) 2010-04-15 2011-10-19 MSK - Verpackungs-Systeme GmbH Method and device for wrapping a stack of goods with a film
ITMI20101715A1 (en) * 2010-09-21 2012-03-22 Messersi Packaging Srl MAKING MACHINE WITH AIR BLOWING
FR2967648A1 (en) * 2010-11-22 2012-05-25 Thimon ROBOT PACKAGING METHOD AND MACHINE OF A PALLETIZED LOAD USING A SOFT PLASTIC COVER
ITMI20121690A1 (en) * 2012-10-09 2014-04-10 Sestese Off Mec PACKAGING PACKING MACHINE PERFECTED, WITH ADJUSTMENT IN THE HEIGHT OF THE DISTRIBUTION DEVICE.
EP2921415A1 (en) 2014-03-21 2015-09-23 RH Montagetechnik ApS Apparatus for packing goods or packages and a method of repairing and servicing the apparatus
WO2015140310A1 (en) * 2014-03-21 2015-09-24 Rh Montagetechnik Aps Apparatus for packing goods or packages and a method of repairing and servicing the apparatus
EP2993134A1 (en) 2014-09-05 2016-03-09 OFFICINA MECCANICA SESTESE S.p.A. Hooding apparatus
EP2995565A1 (en) 2014-09-10 2016-03-16 RH Montagetechnik ApS Apparatus for packing goods or packages
CN105836176A (en) * 2015-02-02 2016-08-10 信诺工业集团有限责任公司 Packaging device and operation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012019988A1 (en) 2012-10-12 2014-04-17 Beumer Gmbh & Co. Kg Method and device for wrapping a stack of goods with a film

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092922A2 (en) 1982-04-23 1983-11-02 Ladislav Stephan Karpisek Stretch wrapping apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092922A2 (en) 1982-04-23 1983-11-02 Ladislav Stephan Karpisek Stretch wrapping apparatus

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2835236A1 (en) 2002-01-28 2003-08-01 Thimon METHOD AND DEVICE FOR PLACING A STRETCHED SHEATH ON A PALLETIZED LOAD
EP1331168A1 (en) 2002-01-28 2003-07-30 Thimon Method and apparatus for wrapping a palettised load with a sleeve of stretch foil
EP1419966A1 (en) 2002-11-12 2004-05-19 Thimon Method and apparatus for applying a packaging hood of stretch foil on a palettized load
EP1510460A1 (en) * 2003-08-28 2005-03-02 OFFICINA MECCANICA SESTESE S.p.A. Method of and apparatus for the sealed overwrapping of a load using a tubular film of stretchable plastic material
EP1574433A1 (en) * 2004-03-11 2005-09-14 Thimon Method and apparatus for the manufacturing and applying at high speed of a packaging hood on a palettised load.
FR2867452A1 (en) * 2004-03-11 2005-09-16 Thimon METHOD AND DEVICE FOR SHAPING AND REMOVING HIGH PURPOSE OF A PACKAGING COVER ON A PALLETIZED LOAD
US7937910B2 (en) 2005-11-10 2011-05-10 Thimon Method and machine for preparing and depositing a stretch-film packaging sleeve on a palletized load
RU2477248C2 (en) * 2009-12-21 2013-03-10 Мск Ферпакунгз-Зюстеме Гмбх Device and method to wrap stack of products with film
EP2336034A1 (en) 2009-12-21 2011-06-22 MSK - Verpackungs-Systeme GmbH Method and device for wrapping a stack of goods with a film
CN102180371A (en) * 2009-12-21 2011-09-14 Msk包装系统有限公司 Method and device for wrapping a stack of goods with a film
RU2478072C2 (en) * 2010-04-15 2013-03-27 Мск-Ферпакунгз-Зюстеме Гмбх Device and method to wrap pile of products with film
CN102358445B (en) * 2010-04-15 2015-09-09 Msk包装系统有限公司 The equipment of wrap film and method around stack of articles
AU2011201660B2 (en) * 2010-04-15 2016-03-03 Msk - Verpackungs-Systeme Gmbh Apparatus and method of wrapping a film around a stack of objects
EP2377762A1 (en) 2010-04-15 2011-10-19 MSK - Verpackungs-Systeme GmbH Method and device for wrapping a stack of goods with a film
CN102358445A (en) * 2010-04-15 2012-02-22 Msk包装系统有限公司 Method and device for wrapping a stack of goods with a film
EP2431280A3 (en) * 2010-09-21 2012-04-25 Messersi' Packaging S.R.L. Machine for applying a packaging hood on an object
ITMI20101715A1 (en) * 2010-09-21 2012-03-22 Messersi Packaging Srl MAKING MACHINE WITH AIR BLOWING
FR2967648A1 (en) * 2010-11-22 2012-05-25 Thimon ROBOT PACKAGING METHOD AND MACHINE OF A PALLETIZED LOAD USING A SOFT PLASTIC COVER
CN103370260A (en) * 2010-11-22 2013-10-23 蒂蒙公司 Method and machine for the robot wrapping of a palletized load with a cover made of flexible plastics material
CN103370260B (en) * 2010-11-22 2015-03-04 蒂蒙公司 Method and machine for the robot wrapping of a palletized load with a cover made of flexible plastics material
US10343798B2 (en) 2010-11-22 2019-07-09 Thimon Method and machine for the robot wrapping of a palletized load with a cover made of flexible plastics material
WO2012069712A1 (en) 2010-11-22 2012-05-31 Thimon Method and machine for the robot wrapping of a palletized load with a cover made of flexible plastics material
ITMI20121690A1 (en) * 2012-10-09 2014-04-10 Sestese Off Mec PACKAGING PACKING MACHINE PERFECTED, WITH ADJUSTMENT IN THE HEIGHT OF THE DISTRIBUTION DEVICE.
EP2719628A1 (en) 2012-10-09 2014-04-16 OFFICINA MECCANICA SESTESE S.p.A. Improved hooding machine, with distribution-device height adjustment
WO2015140310A1 (en) * 2014-03-21 2015-09-24 Rh Montagetechnik Aps Apparatus for packing goods or packages and a method of repairing and servicing the apparatus
EP2921415A1 (en) 2014-03-21 2015-09-23 RH Montagetechnik ApS Apparatus for packing goods or packages and a method of repairing and servicing the apparatus
EP2993134A1 (en) 2014-09-05 2016-03-09 OFFICINA MECCANICA SESTESE S.p.A. Hooding apparatus
EP2995565A1 (en) 2014-09-10 2016-03-16 RH Montagetechnik ApS Apparatus for packing goods or packages
CN105836176A (en) * 2015-02-02 2016-08-10 信诺工业集团有限责任公司 Packaging device and operation method thereof
US10273031B2 (en) 2015-02-02 2019-04-30 Signode Industrial Group Llc Packaging apparatus and method for operating same
CN105836176B (en) * 2015-02-02 2020-03-17 信诺工业集团有限责任公司 Packaging device and method of operating the same
US11097865B2 (en) 2015-02-02 2021-08-24 Signode Industrial Group Llc Packaging apparatus and method for operating same
US11649084B2 (en) 2015-02-02 2023-05-16 Signode Industrial Group Llc Packaging apparatus and method for operating same

Also Published As

Publication number Publication date
ES2254122T3 (en) 2006-06-16
FR2794720A1 (en) 2000-12-15
FR2794720B1 (en) 2001-08-31
DE60024523T2 (en) 2006-08-17
EP1060988B1 (en) 2005-12-07
DE60024523D1 (en) 2006-01-12
DK1060988T3 (en) 2006-04-18

Similar Documents

Publication Publication Date Title
EP1060988B1 (en) Method and device for making and applying a flexible heat-shrinkable hood on palletized load
EP1951577B1 (en) Method and machine for preparing and depositing a stretch-film packaging sleeve on a palletized load
EP1574433B1 (en) Method and apparatus for the manufacturing and applying at high speed of a packaging hood on a palettised load.
EP0510159B1 (en) Method, machine and assembly for packing a load provided with at least one edge-protecting corner piece, and device for grasping, moving, depositing and holding said corner piece
EP0392933A1 (en) Method and device for cutting and sealing a packaging film
CA2075215A1 (en) Luggage overwrapping machine for users of various transportation means and process thereof
EP0893241A1 (en) Method and apparatus for adhering automatically a heat-shrinkable plastic film on the bottom of an open crate.
CA1314418C (en) Facilities for placing sleeve label on objects such as cans
EP0131082B1 (en) Device for placing pallets on a loading area
FR2575134A1 (en) PALETTIZATION INSTALLATION, IN PARTICULAR BAG PACKAGES
EP0354083B1 (en) Device and apparatus for treating and packaging articles such as empty containers, and palettized load thus obtained
FR2926287A1 (en) Packaging device e.g. gantry robot, for e.g. placing quantity of case on sliding vane, has set of positioning devices arranged to allow placing objects on support elements or object layer in upper part of frame
FR2570675A1 (en) METHOD AND MACHINE FOR AUTOMATICALLY BANDEROLING A LOAD WITH A PLASTIC FILM STRIP
EP0593109B1 (en) Machine for closing a container such as a semi-rigid tray, by means of a cover
FR2573031A1 (en) MACHINE FOR THE PACKAGING OF VARIOUS PRODUCTS, WITH THERMORETRACTABLE FILM
FR2654066A1 (en) Apparatus for positioning receiving cavities for fruits and vegetables in cardboard boxes according to the principle of closure of the boxes, known as "American boxes", and the method for positioning the cavities in the boxes
FR2639611A1 (en) Device for placing a cover over a load packaged by means of hoop-casing
EP0151364A2 (en) Packaging line for products with a film in a receptacle formed from a flat pre-cut blank
EP0172127A1 (en) High-speed automatic bundling station
EP1445197B1 (en) Apparatus and method for applying a packaging hood of heat-shrinkable foil on a palettised load
FR2604654A1 (en) Machine for manufacting packaging for products under retractable (retractile) sheets
FR2623472A1 (en) Chain for automatic palletisation of stacked packages
EP0204606B1 (en) Apparatus for erecting, filling and paletising containers
EP0008994A1 (en) Clamping means in a filling and closing machine for flexible tubes
EP0671327B1 (en) Method and apparatus for handling pyramid stump-shaped trays and placing these in a package

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE DK ES GB IT NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010510

AKX Designation fees paid

Free format text: DE DK ES GB IT NL

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THIMON

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE DK ES GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051207

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051207

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 60024523

Country of ref document: DE

Date of ref document: 20060112

Kind code of ref document: P

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2254122

Country of ref document: ES

Kind code of ref document: T3

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20051207

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060908

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20190510

Year of fee payment: 20

Ref country code: DE

Payment date: 20190528

Year of fee payment: 20

Ref country code: ES

Payment date: 20190603

Year of fee payment: 20

Ref country code: IT

Payment date: 20190527

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 60024523

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Expiry date: 20200522

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20200828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20200523