EP3718715B1 - Dispositif de coupe longitudinale pourvu de rouleau de convoyeur intégré - Google Patents

Dispositif de coupe longitudinale pourvu de rouleau de convoyeur intégré Download PDF

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Publication number
EP3718715B1
EP3718715B1 EP20160666.2A EP20160666A EP3718715B1 EP 3718715 B1 EP3718715 B1 EP 3718715B1 EP 20160666 A EP20160666 A EP 20160666A EP 3718715 B1 EP3718715 B1 EP 3718715B1
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EP
European Patent Office
Prior art keywords
film
cutting knife
packaging film
packaging
conveying element
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.)
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Application number
EP20160666.2A
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German (de)
English (en)
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EP3718715A1 (fr
Inventor
Dominik Patz
Stefan OBERSCHACHTSIEK
Robert Maier
Peter Kovacs
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller GmbH and Co KG
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Publication of EP3718715A1 publication Critical patent/EP3718715A1/fr
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Publication of EP3718715B1 publication Critical patent/EP3718715B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/15—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
    • B26D1/151—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/06—Cutting webs along their longitudinal direction
    • 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material

Definitions

  • the present invention relates to a longitudinal cutting device according to claim 1 and a method according to independent claim 11.
  • longitudinal cutting devices are used together with cross-cutting devices for separating manufactured packages.
  • Longitudinal cutting devices are designed to cut the packaging film composite fed to them in the film transport direction in the longitudinal direction, i.e. H. along the film transport direction.
  • Such a longitudinal cutting device reveals the DE 103 59 479 A1 .
  • the longitudinal cutting device disclosed therein comprises a plurality of cutting knives arranged next to one another in the film transport direction, each of which cooperates with a counter-pressure roller in order to cut the packaging film conveyed in the film transport direction along the film transport direction.
  • a scissor cut occurs on the respective cutting knives due to the interaction of the respective cutting knives with the respective counter-pressure rollers.
  • the problem with this is that, particularly when cutting through soft films, ie packaging films with low strength or rigidity, the film material can build up immediately in front of the respective cutting blades.
  • packaging films made of soft film material can distort due to the scissor cutting effect, which can lead to an unclean cut along the film transport direction.
  • DE 84 14 263 U1 discloses a longitudinal cutting device with several crushing knives which, during a cutting process of a packaging film, press against counter-cutting disks rotatably mounted underneath the packaging film in order to cut through the packaging film
  • DE 22 62 815 A1 discloses a thermoforming packaging machine with a forming station, a sealing station, a cross-cutting station and a longitudinal cutting station, which are arranged on a machine frame in this order in the production direction.
  • the longitudinal cutting device has a roller and cutting disks that can be pressed resiliently against it, the roller being drivably connected by means of a packaging material transport device
  • the JP S60-134 825 A discloses a cutting unit configured to create a perforation in the hinge area of a package.
  • the cutting unit includes a knife roll with cutting knives that are attached between fixing disks.
  • the knife roller can be pretensioned by spring force against a counter-pressure roller positioned underneath.
  • the object of the invention is to provide a longitudinal cutting device by means of which packaging material can be cut particularly precisely. Furthermore, it is the object of the invention to provide a corresponding method.
  • the object of the invention is achieved by means of a longitudinal cutting device according to claim 1 and by means of a method according to independent method claim 11.
  • the invention relates to a longitudinal cutting device for a packaging film, comprising a plurality of cutting knives for cutting the packaging film fed to the cutting knives in a film transport direction, the plurality of cutting knives in the Film transport direction has a left cutting knife, a right cutting knife and at least one intermediate cutting knife.
  • the longitudinal cutting device has at least one feed unit assigned to the intermediate cutting knife and designed to transport the packaging film, by means of which the packaging film can be conveyed directly at the location of a cutting process in the film transport direction.
  • a comparable feed unit can optionally be formed on the other cutting blades of the longitudinal cutting device.
  • an indentation set for the packaging film on the feed unit is upstream in the film transport direction within a film transport plane at a predetermined distance of 1 mm to approx. 50 mm, preferably 4 mm to 20 mm, and / or 5% to 15% of a diameter of the intermediate cutting knife positioned to a cutting edge of the intermediate cutting knife designed for the cutting process.
  • the packaging film can thus be drawn in on the feed unit at a short distance directly in front of the cutting knife and can be transported further along it in such a way that it can be fed to the cutting edge of the intermediate cutting knife in a tensioned state, thereby creating a clean longitudinal cut.
  • the invention provides that in order to convey the packaging film on the feed unit, a frictional coupling is established between a first conveying element mounted above the packaging film and a second conveying element mounted below the packaging film. Using the non-positive coupling between the first and second conveying elements, the packaging film can be clamped between them in such a way that it goes through the cutting process on the cutting knife in a taut state, whereby a clean cut can be reliably produced.
  • a contact force aligned orthogonally to a feed plane by the non-positive coupling can be varied. This makes it possible, in particular, to set a feed force resulting from the contact pressure in the film transport direction for different types of packaging film.
  • the first conveying element is disc-shaped and has at least one compressible rubber track on the circumference. This means that the packaging film material to be conveyed engages particularly well on the feed unit and can be reliably transported along the film transport direction.
  • the first conveying element has at least one elastically deformable silicone wheel.
  • a silicone wheel would also mean a silicone tire.
  • the first conveying element can be positioned on the feed unit in such a way that it is pressed against the conveying element positioned below the packaging film in such a way that the silicone wheel provided on the first conveying element deforms in a predetermined manner when it rests on the second conveying element located underneath.
  • the front part provided for the feeding of the packaging film on the feed unit can be adjusted within the film transport plane at a predetermined distance upstream of the cutting edge of the intermediate cutting knife in such a way that, as described above, the film is fed in before the packaging film is severed. This enables clean feeding and clean cutting of the packaging film on the intermediate cutting knife.
  • the first conveying element has two spaced apart silicone wheels transversely to the film transport direction, between which the intermediate cutting knife is mounted coaxially. This enables the packaging film to be guided past the feed unit using the two silicone wheels directly to the side of the cutting knife, which means that the packaging film can be fed better to the intermediate cutting knife.
  • the intermediate cutting blade is rotatably mounted and the first conveying element is rotatably mounted on a common first shaft. This allows the cutting speed of the cutting knife to be adjusted independently of rotation of the first conveying element. The cutting speed of the cutting knife can therefore be excellently adjusted with regard to the packaging film material fed to the cutting knife.
  • the first shaft is mounted in a height-adjustable manner above the packaging film.
  • the feed unit in particular a feed area formed thereon, can be easily adjusted with regard to the packaging film material used.
  • the first conveying element is a counter-holder roller and the second conveying element is a drivable feed roller, which are rotatably mounted at the same peripheral speeds via the non-positive coupling.
  • the counter-holder roller rolls on the feed roller driving it in such a way that the drawn-in packaging film is gripped along a contact zone in between, the retraction of which, i.e. H.
  • the frontmost part in the film transport direction, upstream is positioned within the film transport plane at a predetermined distance, for example from 0.1 mm to 30 mm, from the cutting edge of the intermediate cutting knife designed for the cutting process.
  • the cutting blade is mounted so that it can be driven, decoupled from the feed unit, at a variable speed, preferably at a variable speed between 200 and 1000 revolutions per minute. This allows a wide range of soft film materials to be cut cleanly.
  • the first conveying element and the second conveying element together form a recess for the intermediate cutting knife.
  • the first conveying element and the second conveying element can interact by means of their frictional coupling in such a way that a section of the packaging film fed to the cutting knife is fixed in tension for the cutting process in the recess formed between them.
  • the cutting knife can therefore make a clean longitudinal cut in the film transport direction through the packaging film material that is tightly fed to it.
  • the invention also relates to a packaging machine, preferably a deep-drawing packaging machine, with a longitudinal cutting device of the type described above and with a separate film transport device, for example in the form of clip chains guided laterally on the machine frame, which is designed to move the packaging film along a variety of lengths in accordance with a machine work cycle of the packaging machine To promote work stations of the packaging machine, wherein operation of the feed unit of the longitudinal cutting device is coupled to operation of the film transport device of the packaging machine.
  • the feed unit used on the longitudinal cutting device according to the invention can be operated synchronously with the film transport device of the packaging machine.
  • all cutting blades of the longitudinal cutting device are each equipped with a feed unit, as previously described in connection with the intermediate cutting blade. Nevertheless, it can be provided that the outermost cutting blades in the film transport direction, i.e. H. the left and right cutting knives, which are already positioned on a packaging machine next to the side clamp chains of the packaging machine that hold the film material taut, do not require a separate feed unit in order to make a clean cut through the packaging film material.
  • the invention also relates to a method for cutting through a packaging film in the film transport direction by means of a longitudinal cutting device which has a left cutting knife, a right cutting knife and at least one intermediate cutting knife in the film transport direction.
  • a feed unit of the longitudinal cutting device positioned on the intermediate cutting knife pulls in the packaging film for a cutting process and feeds the packaging film directly to the intermediate cutting knife of the longitudinal cutting device.
  • thermoforming packaging machine 1 shows a thermoforming packaging machine 1.
  • the thermoforming packaging machine 1 comprises, one behind the other, an unwinding unit 2 for a bottom film 3, a forming station 4 for forming packaging troughs 5, an insertion section 6, along which products 7 are inserted into the shaped packaging troughs 5, a sealing station 8 for Closing the packaging troughs 5 with a top film 9, a cutting station 10 for separating finished packaging 11 and a discharge belt 12 positioned at the exit of the thermoforming packaging machine 1 for transporting away finished packaging 11. All work stations of the thermoforming packaging machine 1 are in Fig. 1 attached to a machine frame 13.
  • Fig. 2 shows sections of the thermoforming packaging machine 1 in a schematic top view Fig. 1 .
  • a film transport device 14 is provided on the machine frame 13 of the thermoforming packaging machine 1 in the film transport direction F.
  • the film transport device 14 comprises clip chains 15a, 15b on the left and right of the machine frame 13 in the film transport direction F for gripping and conveying the bottom film 3 up to the sealing station 8 and for gripping and transporting the composite of the bottom film 3 produced at the sealing station 8 with the one sealed thereon Top film 9.
  • Fig. 2 The manufacturing process takes place on the thermoforming packaging machine 1 in multiple lanes.
  • Fig. 2 shows that work is carried out along three tracks 16a, 16b, 16c.
  • the cutting station 10 has a cross-cutting device 17 and a longitudinal cutting device 18 one behind the other in the film transport direction F.
  • the cross-cutting device 17 is designed to consist of the packaging film 19 fed to the cross-cutting device 17 transversely to the film transport direction F from the bottom film 3 and the top film 9 sealed with it, between the packages 11 produced.
  • the longitudinal cutting device 18 positioned behind the cross-cutting device 17 in the film transport direction F is designed to cut through the packaging film 19 in the film transport direction F, ie in the longitudinal direction of the manufacturing process, so that finished, isolated packages 11 are available following the cutting station 10.
  • Fig. 3 shows the longitudinal cutting device 18 in an isolated perspective view.
  • the longitudinal cutting device 18 comprises a plurality of cutting knives 20, which are mounted coaxially transversely to the film transport direction F for cutting through the packaging film 19.
  • a left cutting knife 20a, a right cutting knife 20d and two intermediate cutting knives 20b, 20c are positioned coaxially on a first shaft 21 in the film transport direction F.
  • a feed unit 22 is assigned directly to the respective cutting knives 20.
  • the respective feed units 22 are designed to transport the packaging film 19 and are in particular stored in such a way that the packaging film 19 can be conveyed directly at the location of the respective cutting knife 20 in the film transport direction F.
  • the side clamp chains 15a, 15b are mounted close to the left and right cutting blades 20a, 20d in the film transport direction F.
  • Fig. 4 shows an enlarged section of the in Fig. 3 longitudinal cutting device 18 shown.
  • the respective feed units 22 have an inlet 23 on which the packaging film 19 is drawn in before the cutting process, but immediately in front of the respective cutting knife 20. This ensures that the packaging film 19 drawn in by means of the feed units 22 passes through the respective cutting process in a tensioned manner in the area of the respective cutting knife 20, so that it can be cut cleanly in the film transport direction F.
  • Fig. 4 shows that the feed units 22 each have a first conveyor element 24 mounted above the packaging film 19 (not shown) and a second conveyor element 25 mounted below the packaging film 19.
  • the respective first conveying element 24 has two adjacent silicone wheels 36, between which the respective cutting knife 20 is mounted coaxially.
  • the first wave 21 out Fig. 4 along which the cutting blades 20 and the first conveying elements 24 assigned to them are coaxially mounted, can be adjusted in height by means of an adjusting mechanism 26.
  • the respective first conveying elements 24 of the feed units 22 can thereby rest pressed on the associated second conveying elements 25 positioned underneath in such a way that they clamp the packaging film 19 between them.
  • a contact pressure K aligned orthogonally to a film transport plane E of the packaging film 19 can be varied in the area of the respective non-positive coupling 27.
  • a conveying zone 28 for the packaging film 19 is formed in the respective intermediate area.
  • the associated respective feed 23 is stored in the film transport direction F upstream within the film transport plane E in front of the cutting knife 20 in order to pull in the packaging film 19 at the feed unit 22 before the cutting knife 20 is immersed in the packaging film 19.
  • the respective first conveying elements 24 Fig. 4 are designed as counter-holder rollers 29.
  • the counter-holder rollers 29 are rotatably mounted coaxially on a first shaft 21 transversely to the film transport direction F.
  • the respective second conveyor elements 25 form driven feed rollers 35 which are mounted in a rotationally fixed manner on the second shaft 30, with the non-positive coupling 27 allowing the first and second conveyor elements 24, 25 to be driven at the same peripheral speeds.
  • the respective first conveying elements 24 are rotatably mounted on the first shaft 21, so that the feed units 22 are decoupled from the operation of the cutting blades 20. This makes it possible to drive the cutting blades 20 at a variable speed.
  • Fig. 5 shows a schematic sectional view of the feed unit 22 on the intermediate cutting blade 20b.
  • the first conveying element 24 and the second conveying element 25 together form a recess 31 for the intermediate cutting knife 20b.
  • the cutting knife 20b projects into the second conveying element 25 of the feed unit 22 in order to cut through the packaging film 19.
  • the view off Fig. 5 could just as well refer to the feed unit 22 of another cutting knife 20 of the longitudinal cutting device 18.
  • Fig. 6 shows a schematic arrangement of the feed unit 22 transversely to the film transport direction F.
  • Fig. 6 shows that a front part of the feed 23 on the feed unit 22 in the film transport direction F upstream, within the film transport plane E in a predetermined Distance 32 is positioned to a cutting edge 33 of the intermediate cutting knife 20b designed for the cutting process.
  • the distance 32 can be varied by adjusting the contact pressure K of the first conveying element 24, which is made of deformable material at least in the contact area, on the second conveying element 25 positioned underneath. Adjusting the distance 32 on the feed 23 of the feed unit 22 enables the packaging film 19 to be drawn in in the film transport direction F upstream of the cutting edge 33 for the cutting process before the packaging film 19 is severed using the cutting knife 20b.
  • the packaging film 19 can thus be fed cleanly to the cutting knife 20b.
  • the principle according to the invention can be applied to each of the coaxially arranged cutting blades 20a, 20b, 20c, 20d.
  • the feed unit 22 used in the invention is preferably used on the intermediate cutting blades 20b, 20c, ie not positioned completely outside, in order to cleanly feed the packaging film 19 to the cutting process in their area.
  • the outer cutting blades i.e. the one inside Fig. 3
  • Left and right cutting knives 20a, 20d shown can do without a feed unit 22 because the staple chains 15a, 15b of the deep-drawing packaging machine 1 already run past them in the film transport direction F, so that the packaging film can be fed tightly to the outer cutting knives anyway.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Advancing Webs (AREA)

Claims (11)

  1. Dispositif de coupe longitudinale (18) pour un film d'emballage (19), comprenant une pluralité de lames de coupe (20) pour couper le film d'emballage (19) amené aux lames de coupe (20) dans une direction de transport de film (F), dans lequel la pluralité de lames de coupe (20) comporte dans la direction de transport de film (F) une lame de coupe gauche (20a), une lame de coupe droite (20d) et au moins une lame de coupe intermédiaire (20b, 20c), dans lequel le dispositif de coupe longitudinale (18) comprend au moins une unité d'alimentation (22) associée à la lame de coupe intermédiaire (20b, 20c) et conçue pour transporter le film d'emballage (19), au moyen de laquelle le film d'emballage (19) peut être transporté directement sur le lieu d'une opération de coupe dans la direction de transport du film (F), dans lequel
    pour le transport du film d'emballage (19) sur l'unité d'alimentation (22), un accouplement par frottement (27) est réalisé entre un premier élément de transport (24) monté au-dessus du film d'emballage (19) et un deuxième élément de transport (25) monté en dessous du film d'emballage (19), dans lequel le premier élément de transport (24) est un rouleau de contre-support (29) et le deuxième élément de transport (25) est un rouleau d'alimentation entraînable (35), montés tous deux de manière rotative via l'accouplement par frottement (27) avec des vitesses périphériques identiques (v),
    dans lequel une entrée (23) configurée pour le film d'emballage (19) est positionnée en amont sur l'unité d'alimentation (22) dans la direction de transport de film (F), dans un plan de transport de film (E) à une distance prédéterminée (32) de 1 mm à 50 mm ou de 5 % à 15 % du diamètre de la lame de coupe intermédiaire (20b, 20c) jusqu'à un bord de coupe (33) de la lame de coupe intermédiaire (20b, 20c) formé pour l'opération de coupe.
  2. Dispositif de coupe longitudinale selon la revendication 1, caractérisé en ce qu'une force de contact (K) orientée perpendiculairement à un plan de transport de film (E) peut être régulée par l'accouplement par frottement (27) .
  3. Dispositif de coupe longitudinale selon l'une des revendications précédentes, caractérisé en ce que le premier élément de transport (24) est en forme de disque et présente au moins une piste en caoutchouc compressible (34) sur sa circonférence.
  4. Dispositif de coupe longitudinale selon l'une des revendications précédentes, caractérisé en ce que le premier élément de transport (24) comporte au moins une roue en silicone (S) élastiquement déformable.
  5. Dispositif de coupe longitudinale selon la revendication 4, caractérisé en ce que le premier élément de transport (24) comporte deux roues en silicone (S) espacées transversalement à la direction de transport du film (F), entre lesquelles la lame de coupe intermédiaire (20b, 20c) est montée coaxialement.
  6. Dispositif de coupe longitudinale selon l'une des revendications précédentes, caractérisé en ce que la lame de coupe intermédiaire (20b, 20c) est montée de manière fixe en rotation et le premier élément de transport (24) est monté de manière rotative sur un premier axe commun (21).
  7. Dispositif de coupe longitudinale selon la revendication 6, caractérisé en ce que le premier arbre (21) est monté de manière réglable en hauteur au-dessus du film d'emballage (19).
  8. Dispositif de coupe longitudinale selon l'une des revendications précédentes, caractérisé en ce que la lame de coupe intermédiaire (20b, 20c) est montée découplée de l'unité d'alimentation (22) et entraînable à une vitesse de rotation variable.
  9. Dispositif de coupe longitudinale selon l'une des revendications précédentes, caractérisé en ce que le premier élément de transport (24) et le deuxième élément de transport (25) forment ensemble un évidement (31) pour la lame de coupe intermédiaire (20b, 20c).
  10. Machine d'emballage, conçue de préférence sous la forme d'une thermoformeuse d'emballage (1), avec un dispositif de coupe longitudinale (18) selon l'une des revendications précédentes ainsi qu'avec un dispositif de transport de film (14) séparé qui est conçu pour transporter le film d'emballage (19) le long d'une pluralité de postes de travail de la machine d'emballage, conformément à un cycle de travail de la machine d'emballage, dans lequel le fonctionnement de l'unité d'alimentation (22) du dispositif de coupe longitudinale (18) est couplé au fonctionnement du dispositif de transport de film (14) de la machine d'emballage.
  11. Procédé pour couper un film d'emballage (19) dans la direction de transport du film (F) au moyen d'un dispositif de coupe longitudinale (18), comportant, dans la direction de transport de film (F), une lame de coupe gauche (20a), une lame de coupe droite (20d) et au moins une lame de coupe intermédiaire (20b, 20c), dans lequel une unité d'alimentation (22) du dispositif de coupe longitudinale (18) positionnée sur la lame de coupe intermédiaire (20b, 20c) tire le film d'emballage (19) pour une opération de coupe et amène directement le film d'emballage (19) à la lame de coupe intermédiaire (20b, 20c) du dispositif de coupe longitudinale (18), dans lequel
    le film d'emballage (19) est transporté sur l'unité d'alimentation (22) au moyen d'un accouplement par frottement réalisé entre un premier élément de transport (24) monté au-dessus du film d'emballage (19) et un deuxième élément de transport (25) monté en dessous du film d'emballage (19), dans lequel le premier élément de transport (24) est un rouleau de contre-support (29) et le deuxième élément de transport est un rouleau d'alimentation entraînable (35), tournant tous deux à une même vitesse périphérique (v) via l'accouplement par frottement (27),
    dans lequel le film d'emballage (19) est aspiré à une entrée (23) de l'unité d'alimentation (22) avant que le film d'emballage (19) ne soit amené à un bord de coupe (33) de la lame de coupe intermédiaire (20b, 20c) immédiatement en aval de l'entrée (23) en direction de transport de film (F) dans un plan de transport de film (E).
EP20160666.2A 2019-03-29 2020-03-03 Dispositif de coupe longitudinale pourvu de rouleau de convoyeur intégré Active EP3718715B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019204477.8A DE102019204477A1 (de) 2019-03-29 2019-03-29 Längsschneidung mit integrierter Förderrolle

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EP3718715A1 EP3718715A1 (fr) 2020-10-07
EP3718715B1 true EP3718715B1 (fr) 2023-09-27

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