EP4201824B1 - Machine d'emballage et procédé permettant d'emballer par feuille extensible - Google Patents

Machine d'emballage et procédé permettant d'emballer par feuille extensible

Info

Publication number
EP4201824B1
EP4201824B1 EP21217890.9A EP21217890A EP4201824B1 EP 4201824 B1 EP4201824 B1 EP 4201824B1 EP 21217890 A EP21217890 A EP 21217890A EP 4201824 B1 EP4201824 B1 EP 4201824B1
Authority
EP
European Patent Office
Prior art keywords
packaging
lifting table
feed belt
tray
alignment fingers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21217890.9A
Other languages
German (de)
English (en)
Other versions
EP4201824A1 (fr
Inventor
Kurt WIßMANN
Thomas Schoen
Jonas LAUER
Winai NAMSUK
Konstantin Rempel
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.)
Bizerba SE and Co KG
Original Assignee
Bizerba SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bizerba SE and Co KG filed Critical Bizerba SE and Co KG
Priority to EP21217890.9A priority Critical patent/EP4201824B1/fr
Priority to US18/081,768 priority patent/US12139283B2/en
Publication of EP4201824A1 publication Critical patent/EP4201824A1/fr
Application granted granted Critical
Publication of EP4201824B1 publication Critical patent/EP4201824B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/54—Wrapping by causing the wrapper to embrace one end and all sides of the contents, and closing the wrapper onto the opposite end by forming regular or irregular pleats
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/10—Feeding, e.g. conveying, single articles
    • B65B35/20—Feeding, e.g. conveying, single articles by reciprocating or oscillatory pushers
    • B65B35/205—Feeding, e.g. conveying, single articles by reciprocating or oscillatory pushers linked to endless conveyors
    • 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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/02—Feeding sheets or wrapper blanks
    • B65B41/04—Feeding sheets or wrapper blanks by grippers

Definitions

  • the present invention relates to a method for operating a packaging machine for wrapping food packaging trays with a packaging film, in particular a plastic film, in which the packaging film is fed to a holding mechanism with two spaced-apart holding elements to hold the fed packaging film on two opposite sides, and subsequently a fed packaging tray is pressed against the fed packaging film by lifting it from below, and then the opposite sides of the packaging film are guided under the packaging tray.
  • the lifting of the packaging tray is effected by a lifting device that raises a lifting table designed to receive the packaging tray from a transfer position to a packaging position, and wherein the packaging tray is transported from a loading position to the transfer position via a feed conveyor.
  • the lifting table includes alignment fingers below the support surface of the lifting table.
  • the alignment fingers are located in the conveying path of the feed conveyor, in particular in the conveying path of the intermediate section of the feed conveyor when the lifting table is arranged in the central position.
  • the alignment fingers are not in the path of the infeed conveyor when the lifting table is in the transfer position.
  • the packaging tray is pressed against the alignment fingers by the infeed conveyor when the lifting table is in the center position.
  • the invention relates to a packaging machine for carrying out a method according to the invention for operating a packaging machine.
  • a packaging machine is used for this process, which includes a feeder for the film, a holding mechanism to secure the film at two opposite sides, and a...
  • the conveyor belt includes a device for moving the packaging trays containing the food products to a lifting device, in particular The product is fed onto a lifting table. The lifting device then raises the supplied packaging tray against the stretch film, stretching the film over the tray.
  • the stretch film is pre-tensioned; that is, the distance between the two holding elements is increased after the stretch film is fed in and before the packaging tray containing the food product is lifted against it.
  • the packaging film is then guided around the packaging tray using lateral folding clamps and a rear folding clamp, folding under the tray's base. As the tray leaves the lifting device, the front edge of the film is also folded under the tray's base. Finally, the stretch film is sealed under the packaging tray, for example, using a heat plate over which the packaging tray is passed. The packaging tray containing the food product is then completely enclosed by a taut stretch film.
  • One such packaging machine is, for example, from the EP 1 728 720 B1 known.
  • a stretch film that can be processed by such a packaging machine is, for example, from the EP 0 687 558 A2 known.
  • the EP 3 187 425 A1 It also shows such a packaging machine for wrapping packaging trays for food with stretch film.
  • the packaging trays are aligned parallel to the direction of travel of the conveyor belt, so that they then reach the lifting table of the lifting device parallel to the packaging film. If the packaging trays are rotated in the horizontal plane relative to the packaging film on the If the lifting table is not used, malfunctions can occur during the packaging process, or the packaging appearance, and especially the way the folding clamps fold the packaging film under the packaging tray, may be unsatisfactory. For this reason, in the EP 1 728 720 B1 The packaging tray is aligned by a complex mechanism before reaching the lifting table.
  • the object of the invention is to create a method and a device that solves the problem of packaging misalignment in a simpler way than in the prior art.
  • the invention proposes a method for operating a packaging machine for wrapping food packaging trays with packaging film.
  • the packaging film is fed to a holding mechanism with two spaced-apart holding elements to hold the supplied packaging film on two opposite sides.
  • a supplied packaging tray is pressed against the supplied packaging film by lifting it from below.
  • the opposite sides of the packaging film are then guided under the packaging tray.
  • the packaging tray is lifted by a lifting device that raises a lifting table designed to receive the packaging tray from a transfer position to a packaging position.
  • the packaging tray is transported from a loading position to the transfer position via a feed conveyor.
  • the lifting device holds the lifting table in a central position while the feed conveyor transports the packaging tray on an intermediate section between the loading position and the transfer position.
  • the lifting table includes alignment fingers below its support surface. These alignment fingers are located within the conveying path of the infeed conveyor, specifically within the conveying path of the intermediate section of the conveyor, when the lifting table is in the center position. The alignment fingers are not located within the conveying path of the infeed conveyor when the lifting table is in the transfer position.
  • the packaging tray is pressed against the alignment fingers by the feed belt when the lifting table is in the center position.
  • the alignment fingers for the packaging tray form a straight stop that runs orthogonally to the transport direction of the conveyor belt, and the packaging tray is pressed against the alignment fingers by the transport movement of the feed belt.
  • the feed belt has a coefficient of friction such that the packaging tray is transported on the feed belt in the transport direction when the feed belt moves in the conveying direction, and the packaging tray slides on the feed belt when the packaging tray touches the alignment fingers and the feed belt moves in the transport direction.
  • the lifting table is lowered from the central position to the transfer position by the lifting device after the packaging tray has been bumped against the alignment fingers.
  • the lifting device lowers the lifting table from the central position to the transfer position in a shorter time than the feed belt transports the packaging tray from an upper edge of the alignment fingers to a front edge of the lifting table.
  • the time at which the packaging tray contacts the alignment fingers is determined by a timer that starts when the packaging tray is transferred from a weighing belt to the infeed belt. In another embodiment, the time at which the packaging tray contacts the alignment fingers is determined by a sensor located near or on the alignment fingers.
  • the lifting table is raised from the transfer position to the packaging position by the lifting device after the packaging tray has been moved to the transfer position on the lifting table by the feed belt.
  • the invention proposes a packaging machine for wrapping food packaging trays with a packaging film.
  • the packaging machine is particularly suitable for carrying out the method according to the invention.
  • the packaging machine comprises a feeding device for supplying the packaging film, a holding mechanism with two spaced-apart holding elements for securing the supplied packaging film on two opposite sides, the distance between the two holding elements being adjustable, and a feed belt for supplying the packaging trays from a loading position to a transfer position.
  • the packaging machine includes a lifting device for moving the supplied packaging tray on a lifting table from below, from the transfer position to a packaging position, and pressing it against the supplied packaging film.
  • the packaging machine includes an operating mode in which the lifting device holds the lifting table in a central position while the feed belt transports the packaging tray on an intermediate section between the loading position and the transfer position.
  • the lifting table includes alignment fingers below its support surface. These alignment fingers are located within the conveying path of the infeed conveyor, specifically within the conveying path of the intermediate section of the conveyor, when the lifting table is in the center position. The alignment fingers are not located within the conveying path of the infeed conveyor when the lifting table is in the transfer position.
  • the packaging tray is pressed against the alignment fingers by the feed belt when the lifting table is in the center position.
  • the feed belt is designed as a belt made of several parallel belts running in the transport direction, each belt being guided around a deflection roller located at the rear in the transport direction, and in particular the rear deflection rollers intersecting the base of the lifting table in the horizontal plane.
  • the alignment fingers are arranged between the belts when the lifting table is in the center position.
  • the base plate includes recesses so that the base plate can be moved through the conveying plane formed by the belts.
  • the belts of the feed belt move through the recesses when the base plate moves vertically.
  • FIG. 1 shows a schematic representation of a packaging machine 1.
  • the upper part of the figure shows a schematic top view and the lower part of the figure shows a side view of the packaging machine 1.
  • Packaging machine 1 comprises a film dispenser 217, a film feeder 216, a
  • a roll of packaging film K in particular a plastic film, can be inserted into the film dispenser 217 and held there by a film holder or roll holder.
  • the film feed device 216 By means of the film feed device 216, an unwound end of the packaging film K can then be transferred to the film transport device 214.
  • the film transport device 214 has two parallel, spaced-apart belt conveyors 201 and 202 to convey the supplied packaging film K on two opposite sides in a transport direction X until the leading edge of the packaging film K reaches the front end of the film transport direction 214 (as viewed in transport direction X). At this point, the film transport stops and the packaging film K is cut from the remaining film roll by the film cutting device 215. Furthermore, the belt conveyors 201 and 202 are designed to... In particular, the separated packaging film K is to be held clamped at the two opposite sides. For this purpose, lifting actuators (not shown) of a type generally known from the prior art may be provided.
  • the film transport device 214 is designed such that the distance between the two belt conveyors 201 and 202 is adjustable. To adjust the mutual distance, the first belt conveyor 201 or the second belt conveyor 202, or both belt conveyors 201 and 202 simultaneously, can be moved transversely to the film transport direction X, in particular by means of a motor drive which is controlled by a control unit of the packaging machine 1.
  • the packaging machine 1 has a feed conveyor 102 via which packaging trays P, containing food products and to be wrapped with packaging film K, can be fed to a lifting table 105 of the packaging machine 1.
  • the feed conveyor 102 consists of several parallel belts that engage with the lifting table.
  • the lifting table 105 is designed to transport each packaging tray P upwards to the packaging film K held in the film transport device 214, such that the packaging tray P is pressed against the packaging film K from below, so that the packaging film K automatically wraps around the packaging tray P during the lifting process.
  • This upper position of the lifting table 105 is the packaging position.
  • the lower position of the lifting table 105, in which the packaging tray P is conveyed onto the lifting table 105 by means of the feed conveyor 102, is the transfer position.
  • a weighing conveyor 101 with an integrated scale which can be used to determine the weight of the packaging tray P and the food product.
  • This is standard practice for packaging machines 1. This is optional and is used for packaging machines 1 that are suitable for labeling a packaging tray P with a label indicating the weight of the packaging tray P and the food product it contains.
  • a printer connected to the scale 101 can then print a label indicating the weight of the filled packaging tray P.
  • the labeling device takes the label from the printer and applies it to the packaged packaging tray P.
  • the packaging tray P is placed by an operator onto the weighing conveyor 101, or, in the case of a packaging machine 1 without a weighing conveyor 101, onto the front part of the infeed conveyor 102. This is the loading position of the packaging machine.
  • a camera 103 is provided in the infeed area of the packaging machine, i.e., in the infeed area of the infeed conveyor 102 or on the weighing conveyor 101, which can be used to recognize different tray types.
  • the packaging process is adjusted by the control unit according to the recognized packaging tray P.
  • a light barrier 104 can also be used to detect when a packaging tray is moved by the infeed conveyor 102 against the alignment finger located on the lifting table 105.
  • the lifting table is referred to below in relation to Fig. 2 , 3a and 3b described.
  • the packaging film K is guided downwards around the packaging tray P using lateral folding clamps 108a and 108b and a rear folding clamp 110, and folded under the packaging tray P or its base.
  • the packaging tray P is then pushed out of the film packing area onto a sealing plate 107 using a pusher 109, which also folds the front end of the packaging film K under the packaging tray P.
  • the sealing plate 107 is heated to a temperature in which the ends of the packaging film K, folded under the packaging tray P, are welded or sealed together.
  • the packaged packaging tray P can be filled with a container in the Fig. 1
  • the labelling device (not shown) is provided with a label which includes, among other things, the weight determined by the scale 101 and is then transported out of the packaging machine via a transverse conveyor belt 106.
  • a stretchable plastic film also known as a stretch film, can be used as packaging film.
  • This packaging film is thermoplastic and can be sealed or welded at high temperatures.
  • the thickness of the packaging film is typically between 10 ⁇ m and 60 ⁇ m.
  • FIG. 2 Figure 1 shows a packaging machine 1 in a front view.
  • a front opening forms a guide channel, at the entrance of which the weighing belt 101 is located.
  • the infeed belt 102 is designed as a belt conveyor with four parallel belts.
  • the belts of the infeed belt form a horizontal plane on which the packaging tray P rests with its underside.
  • the infeed belt 102 i.e., the belts of the infeed belt 102, lead to a lifting table 105.
  • the lifting table 105 is in Fig. 3a and 3b shown in more detail, it consists of several rod-shaped supports with tiltable heads attached to their upper surfaces. These heads form a support surface for the packaging tray.
  • Fig. 3a shows the lifting table 105 of the packaging machine 1 in the transfer position, that is, in the lower position.
  • Figure 1 shows the lifting table 105 of the packaging machine 1 in the center position, that is, in the position in which the packaging tray P is pressed against the alignment fingers by the feed conveyor 102 when the packaging tray is moved on the feed conveyor along an intermediate section between the loading position and the transfer position.
  • the center position and the packaging position differ only slightly. It is only necessary to ensure that, in the center position, the upper edge of the heads does not touch the packaging film K already in the holding devices.
  • the lifting table 105 i.e., the lifting device, consists of a support 301 connected to a frame of the packaging machine 1. It includes a motor 302 to which a lifting mechanism 303 is connected. The lifting mechanism moves rods 311, which are attached to the support 301 by means of a sliding bearing 312, in a vertical direction.
  • a base plate 304 of the lifting table 105 is located on the rods 311.
  • the base plate includes four forward-facing recesses 310 into which the belts of the feed conveyor 102 can engage.
  • Several rod-shaped supports 305 are attached to the base plate 304 and project vertically upwards from the base plate 304. Tiltable heads 306 are arranged at the upper end of the rod-shaped supports 305.
  • the belts of the feed conveyor 102 form a schematically indicated horizontal plane 307, which is slightly higher in the vertical direction than the plane 308 formed by the heads 306 when the lifting table 105 is in the transfer position ( Fig. 3a ).
  • the belts of the feed conveyor 102 form a schematically indicated horizontal plane 307 through which the alignment fingers 309 project in a vertical direction ( Fig. 3b
  • the alignment fingers thus form a stop that is orthogonal to the transport direction of the feed belt.
  • a packaging tray being transported on the feed belt 102 in the transport direction therefore abuts the vertical plane formed by the alignment fingers 309. Because the alignment fingers form a plane orthogonal to the plane 307 of the feed belt 102, the packaging tray is aligned perpendicular to the transport direction by the alignment fingers 309.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • ROM read-only memory
  • RAM random-access memory

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Claims (12)

  1. Procédé pour faire fonctionner une machine d'emballage (1) destinée à envelopper des barquettes (P) pour produits alimentaires d'un film d'emballage (K), dans lequel le film d'emballage (K) est amené à un mécanisme de maintien (214) avec deux moyens de maintien (201, 202) espacés l'un de l'autre pour maintenir le film d'emballage (K) amené sur deux côtés opposés l'un à l'autre, puis une barquette (P) amenée est pressée contre le film d'emballage (K) amené en la soulevant par le bas, puis les côtés opposés l'un à l'autre du film d'emballage (K) sont guidés sous la barquette (P), le soulèvement de la barquette (P) étant effectué par un dispositif de levage, qui soulève un plateau de levage (105) réalisé pour recevoir la barquette (P) depuis une position de transfert dans une position d'emballage, et la barquette (P) étant transportée par une bande d'amenée (102) depuis une position de chargement à la position de transfert, caractérisé en ce que le plateau de levage (105) est maintenu dans une position centrale par le dispositif de levage, tandis que la bande d'amenée (102) transporte la barquette (P) sur une pièce intermédiaire entre la position de chargement et la position de transfert, le plateau de levage (105) comprenant des doigts d'orientation sous la surface d'appui du plateau de levage (105), les doigts d'orientation (309) se trouvant sur le trajet de convoyage de la bande d'amenée (102), en particulier sur le trajet de convoyage de la pièce intermédiaire de la bande d'amenée (102) lorsque le plateau de levage (105) est disposé dans la position centrale et que les doigts d'orientation (309) ne se trouvent pas sur le trajet de convoyage de la bande d'amenée (102), lorsque le plateau de levage (105) se trouve dans la position de transfert, et la barquette (P) étant pressée contre les doigts d'orientation (309) par la bande d'amenée (102) au cours du transport depuis la position de chargement vers la position de transfert lorsque le plateau de levage (105) se trouve dans la position centrale.
  2. Procédé pour faire fonctionner une machine d'emballage (1) selon la revendication 1, caractérisé en ce que les doigts d'orientation (309) forment pour la barquette (P) une butée droite, qui s'étend orthogonalement à la direction de transport de la bande de convoyage et la barquette (P) est pressée contre les doigts d'orientation (309) par le déplacement de transport de la bande d'amenée (102).
  3. Procédé pour faire fonctionner une machine d'emballage (1) selon la revendication 1 ou 2, caractérisé en ce que la bande d'amenée (102) présente un coefficient de frottement de telle sorte que la barquette (P) est transportée sur la bande d'amenée (102) dans la direction de transport lorsque la bande d'amenée (102) se déplace dans la direction de convoyage et que la barquette (P) glisse sur la bande d'amenée (102), lorsque la barquette (P) heurte les doigts d'orientation (309) et que la bande d'amenée (102) se déplace dans la direction de transport.
  4. Procédé pour faire fonctionner une machine d'emballage (1) selon l'une des revendications 1 à 3, caractérisé en ce que le plateau de levage (105) est abaissé par le dispositif de levage depuis la position centrale dans la position de transfert après que la barquette (P) a heurté les doigts d'orientation (309).
  5. Procédé pour faire fonctionner une machine d'emballage (1) selon la revendication 4, caractérisé en ce que le dispositif de levage abaisse le plateau de levage (105) depuis la position centrale dans la position de transfert dans un délai plus court que dans celui dans lequel la bande d'amenée (102) transporte la barquette (P) depuis un bord supérieur des doigts d'orientation (309) vers un bord avant du plateau de levage (105).
  6. Procédé pour faire fonctionner une machine d'emballage (1) selon la revendication 4ou 5, caractérisé en ce que le moment, auquel la barquette (P) a heurté les doigts d'orientation (309), est défini par l'écoulement d'un minuteur, qui a commencé lorsque la barquette (P) a été transférée par une bande de pesée (101) sur la bande d'amenée (102), ou est défini par un capteur à proximité des doigts d'orientation (309) ou sur les doigts d'orientation (309).
  7. Procédé pour faire fonctionner une machine d'emballage (1) selon l'une des revendications 1 à 6, caractérisé en ce que le plateau de levage (105) est relevé par le dispositif de levage depuis la position de transfert dans la position d'emballage après que la barquette (P) a été déplacée sur le plateau de levage (105) dans la position de transfert par la bande d'amenée (102).
  8. Machine d'emballage destinée à enrouler des barquettes (P) pour des produits alimentaires d'un film d'emballage (K), en particulier pour effectuer le procédé selon l'une des revendications précédentes, avec un dispositif d'amenée (216) destiné à amener le film d'emballage (K), un mécanisme de maintien (214) avec deux moyens de maintien (201, 202) espacés l'un de l'autre pour maintenir le film d'emballage (K) amené sur deux côtés opposés l'un à l'autre, la distance entre les deux moyens de maintien (201, 202) pouvant être ajustée, une bande d'amenée (102) destinée à amener les barquettes (P) depuis une position de chargement à une position de transfert, et un dispositif de levage pour déplacer la barquette (P) amenée sur un plateau de levage (105) en la soulevant par le bas depuis la position de transfert dans une position d'emballage et pour la presser contre le film d'emballage (K) amené, caractérisée en ce que la machine d'emballage (1) comprend un mode de fonctionnement, dans lequel le plateau de levage (105) est maintenu dans une position centrale par le dispositif de levage, tandis que la bande d'amenée (102) transporte la barquette (P) sur une pièce intermédiaire entre la position de chargement et la position de transfert, le plateau de levage (105) comprenant des doigts d'orientation (309) sous la surface d'appui du plateau de levage (105), les doigts d'orientation (309) se trouvant sur le trajet de convoyage de la bande d'amenée (102), en particulier sur le trajet de convoyage de la pièce intermédiaire de la bande d'amenée (102) lorsque le plateau de levage (105) est disposé dans la position centrale et que les doigts d'orientation (309) ne se trouvent pas sur le trajet de convoyage de la bande d'amenée (102), lorsque le plateau de levage (105) se trouve dans la position de transfert, et que la barquette (P) est pressée contre les doigts d'orientation (309) par la bande d'amenée (102) au cours du transport depuis la position de chargement vers la position de transfert lorsque le plateau de levage (105) se trouve dans la position centrale.
  9. Machine d'emballage destinée à enrouler des barquettes (P) selon la revendication 8, caractérisée en ce que le plateau de levage (105) est constitué d'une plaque de base (304), sur laquelle plusieurs fixations (305) en forme de tige sont installées, sur les côtés supérieurs desquelles sont installées en particulier des têtes (306) basculables, les têtes (306) formant une surface d'appui du plateau de levage (105) pour la barquette (P), et des doigts d'orientation (309) en forme de L et orientés vers le bas étant installés sur la plaque de base (304), lesquels forment une butée sur le trajet de transport de la bande d'amenée (102) lorsque le plateau de levage (105) se trouve dans la position centrale.
  10. Machine d'emballage destinée à enrouler des barquettes (P) selon la revendication 8 ou 9, caractérisée en ce que la bande d'amenée (102) est réalisée comme une bande composée de plusieurs courroies s'étendant parallèlement dans la direction de transport, chaque courroie étant guidée autour d'un galet de renvoi arrière dans la direction de transport, et les galets de renvoi arrière croisant en particulier dans le plan horizontal la surface de base du plateau de levage (105).
  11. Machine d'emballage destinée à enrouler des barquettes (P) selon la revendication 10, caractérisée en ce que les doigts d'orientation (309) sont disposés entre les courroies lorsque le plateau de levage (105) se trouve dans la position centrale.
  12. Machine d'emballage destinée à enrouler des barquettes (P) selon la revendication 10 ou 11, lorsqu'elles dépendent de la revendication 9, caractérisée en ce que la plaque de base (304) comprend des évidements (310) de telle sorte que la plaque de base (304) peut être déplacée à travers le plan de convoyage formé par les courroies.
EP21217890.9A 2021-12-27 2021-12-27 Machine d'emballage et procédé permettant d'emballer par feuille extensible Active EP4201824B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21217890.9A EP4201824B1 (fr) 2021-12-27 2021-12-27 Machine d'emballage et procédé permettant d'emballer par feuille extensible
US18/081,768 US12139283B2 (en) 2021-12-27 2022-12-15 Packaging machine for packaging using stretch wrap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21217890.9A EP4201824B1 (fr) 2021-12-27 2021-12-27 Machine d'emballage et procédé permettant d'emballer par feuille extensible

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EP4201824A1 EP4201824A1 (fr) 2023-06-28
EP4201824B1 true EP4201824B1 (fr) 2026-01-28

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US20230202695A1 (en) 2023-06-29
US12139283B2 (en) 2024-11-12

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