EP4000824A1 - Dispositif de découpe des emballages alimentaires dans une direction longitudinale et procédé de fonctionnement d'un tel dispositif - Google Patents

Dispositif de découpe des emballages alimentaires dans une direction longitudinale et procédé de fonctionnement d'un tel dispositif Download PDF

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Publication number
EP4000824A1
EP4000824A1 EP21206830.8A EP21206830A EP4000824A1 EP 4000824 A1 EP4000824 A1 EP 4000824A1 EP 21206830 A EP21206830 A EP 21206830A EP 4000824 A1 EP4000824 A1 EP 4000824A1
Authority
EP
European Patent Office
Prior art keywords
cutting
knife
packaging
cutting tool
tools
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.)
Pending
Application number
EP21206830.8A
Other languages
German (de)
English (en)
Inventor
Thomas Nispel
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.)
Weber Food Technology GmbH
Original Assignee
Weber Maschinenbau GmbH Breidenbach
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 Weber Maschinenbau GmbH Breidenbach filed Critical Weber Maschinenbau GmbH Breidenbach
Publication of EP4000824A1 publication Critical patent/EP4000824A1/fr
Pending legal-status Critical Current

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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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • 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
    • B26D1/22—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 coacting with a movable member, e.g. a roller
    • B26D1/225—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 coacting with a movable member, e.g. a roller 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
    • 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
    • B26D1/24—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 coacting with another disc cutter
    • B26D1/245—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 coacting with another disc cutter 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular 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
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/06—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/065—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of meat
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/06—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/068—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of cheese
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/08—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure
    • B65B47/10—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of fluid pressure by vacuum
    • 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
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/06—Packaging groups of articles, the groups being treated as single articles
    • B65B5/068—Packaging groups of articles, the groups being treated as single articles in trays
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
    • B65B7/164—Securing by heat-sealing

Definitions

  • the invention relates to a device for cutting food packaging to size along a longitudinal direction.
  • Such devices can be part of a packaging machine and can be used to cut the packages that are still connected after the packages have been sealed in the longitudinal direction, i.e. to cut them apart into individual packages. This process is also referred to as "separation".
  • a device having the features of claim 1 and in particular in that the device comprises a base, a support structure arranged on the base and at least one cutting tool coupled to the support structure and the cutting tool or at least one of the cutting tools on the base arranged supporting structure between a cutting position and a passive position is adjustable.
  • the idea on which the invention is based is based on fastening at least one of the cutting tools to the supporting structure, for example a shaft, in such a way that it can be moved out of a cutting position without removing the cutting tool from the supporting structure or the supporting structure from a base, for example a machine frame to have to lose weight. In this way, complex conversion measures, such as removing a shaft, can be avoided.
  • a passive position is understood to mean an inactive position, i.e. a position in which the cutting tool is still part of the device but cannot be used for cutting.
  • the device is part of a packaging machine for food products.
  • a packaging machine typically has conveying means for conveying a film web, which represents at least part of the packaging produced.
  • the at least one cutting tool of the device according to the invention is preferably arranged in its cutting position during operation in such a way that it cuts through packaging produced by the packaging machine in a longitudinal direction.
  • each of the Cutting tools Preferably defines each of the Cutting tools have a cutting plane, which are aligned parallel to one another and, in particular, are aligned parallel to a conveying direction of the film web and/or the packaging.
  • a plurality of cutting tools arranged at a distance from one another in the transverse direction is provided on the support structure.
  • One of the cutting tools is preferably adjustable relative to another of the cutting tools, in particular between a cutting position and a passive position.
  • the at least one and/or at least one other of the cutting tools can preferably be adjusted relative to another of the cutting tools and/or the film web.
  • the at least one and/or at least one additional cutting tool can be adjustable relative to another of the cutting tools and/or the film web between a cutting position and a passive position.
  • the at least one cutting tool can be adjusted in its cutting plane between the cutting position and the passive position.
  • the cutting tool is preferably adjustable in such a way that the orientation of its cutting plane does not change during the adjustment.
  • An adjustment mechanism is preferably provided in order to adjust the at least one cutting tool between the cutting position and the passive position.
  • the adjustment mechanism is advantageously designed in such a way that the cutting tool can be moved, guided, from the cutting position into the passive position and/or from the passive position into the cutting position.
  • each cutting tool can be assigned a separate adjustment mechanism.
  • a plurality of cutting tools ie a group of cutting tools, can have a common adjustment mechanism, so that the plurality of cutting tools can be adjusted in a simple manner synchronously with one another between the cutting position and the passive position.
  • the device especially the adjustment mechanism, can have coupling means to couple the group of cutting tools to one another in such a way that the cutting tools can be adjusted together from the cutting position to the passive position and/or from the passive position to the cutting position.
  • the adjustment mechanism is designed to pivot the at least one cutting tool about a pivot axis.
  • the adjustment mechanism can comprise at least one swivel arm.
  • the swivel arm can be coupled to the cutting tool in such a way that the swivel arm can be used to guide a movement of the cutting tool about the swivel axis.
  • the cutting tool is preferably arranged in a stationary manner on the swivel arm and therefore moves with a swiveling movement of the swivel arm.
  • the cutting tool is preferably rotatably mounted on the swivel arm.
  • the adjustment mechanism includes an adjustment drive.
  • the adjustment drive can be designed and set up to pivot a pivot arm of the adjustment mechanism.
  • the adjustment drive can actuate a lever, which is coupled to the swivel arm in such a way that the movement of the lever causes a swiveling movement of the due to the swivel arm.
  • each cutting tool or each group of synchronously moving cutting tools can be assigned a separate adjusting drive.
  • the adjusting drive can be designed as a pneumatic cylinder.
  • the adjustment drive can be designed as an electric motor.
  • An adjustment force of the adjustment drive preferably acts on a distal end region of the pivot arm, ie on an end of the pivot arm opposite the pivot axis.
  • the at least one adjustment drive can be coupled to a control unit of the device.
  • the control unit can control the at least one adjustment drive, in particular the multiple adjustment drives, in order to adjust the device to different, for example stored, operating positions, i.e. cutting width grids.
  • the different operating positions usually correspond to different predetermined package widths.
  • the control unit can control a first group of adjusting drives into a position corresponding to the cutting position and control a second group of adjusting drives into a position corresponding to the passive position.
  • the at least one cutting tool is designed as a knife, in particular a circular knife. All cutting tools are preferably designed as knives, in particular circular knives. Circular knives are particularly suitable for cutting food packaging along a longitudinal direction.
  • a counter-knife or a counter-cutting edge is provided for the knife.
  • a counter-knife or a counter-cutting edge is preferably provided for each knife.
  • the counter-knife or the counter-cutting edge is preferably located below the film web or the film conveying plane when in use.
  • at least one counter-knife or at least one counter-cutting edge, in particular of an adjustable knife can be adjusted between a cutting position or active position and a passive position.
  • at least each counter-knife assigned to an adjustable knife or each counter-cutting edge assigned to an adjustable knife can be adjusted between a cutting position or active position and a passive position.
  • a cover with at least one recess is provided.
  • the cover serves to spatially separate an upper part of the device, which can include the cutting tools and/or the adjustment mechanism, from the packaging.
  • the at least one recess can be arranged in such a way that the cutting tool, in particular the knife, reaches through the recess in sections in its cutting position. In the passive position, the cutting tool can be completely on one side of the cover, in particular completely over the cover.
  • the at least one knife is arranged on a shaft, in particular a rotatable drive shaft.
  • a shaft in particular a rotatable drive shaft.
  • several knives or all knives of the device can be arranged on the shaft, in particular the rotatable drive shaft.
  • the at least one counter knife can be arranged on a second shaft, in particular a second rotatable drive shaft.
  • the first shaft and the second shaft can be drivable in opposite directions.
  • the knife and the counter-knife can form a rotary shear cutting unit.
  • the at least one knife is designed in the form of a circular knife, i.e. a circular knife, and is arranged on a first shaft, which is preferably on top when in use.
  • At least one circular counter-knife is assigned to the at least one knife, which is arranged on a second shaft, which is preferably arranged below the first shaft in the position of use.
  • a distance between a central axis of the first shaft and a central axis of the second shaft is preferably smaller than the sum of the radii of one of the knives and its corresponding counter knife.
  • the at least one knife rests with its side surface, i.e. front surface, on its corresponding counter-knife.
  • the at least one knife is arranged so that it can move radially on the shaft, in particular the drive shaft.
  • the blade can be connected to the shaft via a cross-plate clutch.
  • the radial mobility of the blade on the shaft is preferably used to adjust the at least one blade between the cutting position and the passive position relative to the shaft, which is usually fixed in place on the support structure.
  • the at least one blade can preferably be fixed on the shaft in the axial direction.
  • the at least one knife in particular a knife edge of the at least one knife, is formed by at least two separate knife parts.
  • the knife edge is preferably formed by at least two separate parts, in particular in the shape of a segment of a circle.
  • the parts in the form of a segment of a circle preferably extend over a maximum of 180°. This has the Advantage that the knives can be more easily fixed on the shaft and/or removed from the shaft.
  • a drive for generating a cutting movement of the cutting tool is provided.
  • the driver can be coupled to the driveshaft to drive the driveshaft.
  • the drive can also be coupled to the second shaft in order to drive the counter-knife.
  • a separate, in particular synchronized, drive can be provided for the second shaft.
  • At least one of the cutting tools can be adjusted transversely, in particular perpendicularly, to the cutting planes.
  • the device can be adapted even more flexibly to different packaging widths.
  • several cutting tools are provided, they can be adjusted individually, i.e. relative to one another, or together transversely to the cutting planes.
  • a first group of cutting tools can be adjusted transversely to the cutting planes relative to a second group of cutting tools.
  • the respective adjustment mechanism and/or adjustment drive can also be adjustable transversely, in particular perpendicularly, to the cutting planes.
  • the invention also relates to a packaging machine, in particular a thermoforming packaging machine, with a device according to the invention.
  • the packaging machine can, for example, comprise a conveying device for a film web, eg in the form of two transversely spaced, synchronously driven transport chains holding the film web laterally, a forming and/or sealing station, a transverse cutting station and a labeling station.
  • the invention also relates to a method for cutting packaging, in particular food packaging, along a longitudinal direction using a device, the device comprising a base, a support structure arranged on the base, and at least one cutting tool coupled to the support structure, the cutting tool between a cutting position and a passive position to adjust a width of the packages to be cut while the support structure is positioned on the base and cutting the packages with the at least one cutting tool in its cutting position.
  • the invention is based on the idea of setting the width of packaging to be cut without having to remove cutting tools from the device or having to dismantle parts of the device.
  • the device can be adjusted automatically, for example.
  • the at least one cutting tool is adjusted if the width of the packaging format is to be changed, which is generally the case when there is a product change.
  • a plurality of cutting tools arranged at a distance from one another in the transverse direction is preferably provided on the support structure. Then, in the method, at least one of the cutting tools can be adjusted relative to another of the cutting tools. It is advantageous if the at least one cutting tool is adjusted relative to another of the cutting tools between the cutting position and the passive position in order to adjust the width of the packaging (21) to be cut.
  • the device is adjusted to different packaging widths by adjusting a first set of cutting tools to their respective cutting position and a second set of cutting tools to their respective passive position. If the device again has to be adjusted to a different package width, another set of cutting tools can be adjusted to their respective cutting position and the remaining cutting tools can be adjusted to their respective passive position. At least one cutting tool, in particular a plurality of cutting tools, is understood as a set of cutting tools.
  • the at least one cutting tool is adjusted in its cutting plane between the cutting position and the passive position.
  • the cutting tool can be adjusted without changing the cutting plane of the cutting tool.
  • the at least one cutting tool is preferably adjusted between the cutting position and the passive position by means of an adjustment mechanism.
  • the at least one cutting tool can be pivoted about a pivot axis by means of the adjustment mechanism in order to adjust the cutting tool between the cutting position and the passive position.
  • a swivel arm that can be swiveled about the swivel axis can be used for this purpose.
  • the cutting tool is driven, in particular in a rotary manner.
  • the cutting tool can be designed as a knife, in particular a circular knife, and can be driven about a central axis of the circular knife.
  • the method described above and below can be carried out with one of the described embodiments of the device.
  • the device described above and below can be designed to carry out one or more of the method steps described.
  • the packaging machine 12 shown working in a transport direction T, comprises a machine frame 47.
  • the two transport chains 27 together form conveying means for a lower film 23 drawn off a supply roll 23a.
  • the packaging machine 12 comprises a plurality of work stations that follow one another in the transport direction T, namely a forming station 11, also referred to as a deep drawing or thermoformer, an infeed station 13 for products 10 to be packaged, a feed station 14 for a top film 25 pulled from a supply roll 25a, a sealing station 15 for connecting the lower film 23 to the upper film 25, a labeling station 16, a transverse cutting station 17 and a longitudinal cutting station 19, i.e. a device 19 for cutting packages 21 to size along a longitudinal direction.
  • a forming station 11 also referred to as a deep drawing or thermoformer
  • an infeed station 13 for products 10 to be packaged
  • a feed station 14 for a top film 25 pulled from a supply roll 25a
  • a sealing station 15 for connecting the lower film 23 to the upper film 25
  • a labeling station 16 a transverse cutting station 17
  • a longitudinal cutting station 19 i.e. a device 19 for cutting packages 21 to size along a longitudinal direction.
  • the products 10 to be packaged are, for example, food products, here in the form of so-called portions, each of which comprises a number of slices which have previously been cut by means of a food slicer (not shown) from a loaf or bar-shaped food such as sausage, cheese, ham or meat were separated.
  • a central control device 41 controls the operation of the packaging machine 12, including the work stations mentioned.
  • the packaging machine 12 is provided with an operating device 45, which includes, for example, a touch screen, on which an operator can be shown all the necessary information and the operator can make all the necessary settings before and can be made during operation of the machine.
  • indentations 29, also referred to as troughs are formed in the lower film 23 in a deep-drawing process.
  • the products or portions 10 mentioned are placed in these depressions 29 at the loading station 13 .
  • the infeed station 13 here includes a so-called depositor, of which two endless conveyor belts 13a, 13b are shown.
  • the insertion station 13 can include a robot 50, also shown here schematically, e.g. in the form of a so-called "picker”, which can be designed as a delta robot with a gripper 52, which includes two shovels each holding a portion 10 together.
  • robots and their use in the handling of foodstuffs, in particular when inserting portions into depressions in packaging are known in principle to the person skilled in the art, which is why further explanations are not required here.
  • the lower film 23 provided with the filled depressions 29 and the upper film 25 are then fed to the sealing station 15, which comprises an upper tool 15a and a lower tool 15b.
  • the upper film 25 and the lower film 23 are connected to one another by means of these tools 15a, 15b.
  • the depressions 29 and thus the packaging 21 formed by the upper film 25 and lower film 23 are closed.
  • sealing points 43 running transversely to the transport direction T and also referred to as sealing seams are indicated schematically.
  • the packages 21 are still connected by the upper film 25 and the lower film 23, so they still have to be separated.
  • the transverse cutting station 17 and the longitudinal cutting station 19 are used for this purpose.
  • an inventive longitudinal cutting station 19 is shown, which is also referred to as a "device for cutting food packaging along a longitudinal direction" and in a packaging machine for Can be used as previously described.
  • the device 19 includes a support structure 31 which is connected to the machine frame 47 of the packaging machine.
  • a drive shaft 33 extending perpendicular to the direction of transport is rotatably mounted on this support structure 31 .
  • the drive shaft 33 serves to transmit a torque generated by a drive motor 34 to a plurality of circular blades 35 .
  • the circular knives 35 are arranged on the drive shaft 33 in such a way that their respective cutting planes are aligned essentially perpendicular to the film surfaces to be cut apart in the longitudinal direction.
  • a group of circular knives 35a arranged in a central area of the drive shaft 33 is each coupled to an adjustment mechanism 36 in order to switch the circular knives 35a between a passive position (see Figure 5A ) and a cutting position ( Figure 5B ) to adjust back and forth.
  • Each adjusting mechanism 36 shown in the figures comprises a swivel arm 37 which is pivotably mounted about a swivel axis S.
  • the adjustment mechanism 36 includes an adjustment drive 38, which in the present case is designed as a pneumatic cylinder. To adjust the respective circular knife 35a from the passive position ( Figure 5A ) to the cutting position ( Figure 5B ) the pneumatic cylinder 38 is retracted.
  • an L-shaped lever 39 connected to a cylinder piston 38a is pivoted about its pivot axis 39a.
  • the pivoting of the L-shaped lever 39 results in the pivoting arm 37 coupled to the L-shaped lever 39 in a distal end region 37a and the circular blade 35 coupled to the pivoting arm 37 being pivoted from the passive position into the cutting position.
  • the cylinder piston 38a of the pneumatic cylinder 38 is extended again, whereby the L-shaped lever 39 is swiveled back and thus also the swivel arm 37 coupled to the L-shaped lever 39 and the one with the Swivel arm 37 coupled circular knife 35 are pivoted back.
  • pivoting arm 37 and the circular blade 35 coupled to the pivoting arm 37 can be moved in the radial direction relative to the stationary drive shaft 33, the pivoting arm 37 and the circular blade 35 are connected via a cross disk clutch 40 ( Figures 6A and 6B ) connected to the drive shaft 33.
  • the device 19 can be operated in different operating positions by the previously described adjustability of the individual cutting units.
  • the two outer circular knives 35a are brought into the cutting position, while the middle circular knife 35a is brought into the passive position.
  • the central circular knife 35a is brought into the cutting position while the two outer circular knives 35a are brought into the passive position.
  • all three circular knives 35a are brought into the cutting position.
  • the device 19 can also have fewer or more adjustable cutting units.
  • a package support 53 which serves to support the packages 21 during the cutting operation and to form a counter-cutting edge 53b.
  • the packaging support 53 is formed by carriers 53, which during operation, as in Figures 8A and 8B shown, extend along interstices 54 between the depressions 29 of the packages 21 and rest on the upper sides 53a of the sections of the packages 21 to be cut.
  • recesses 55 are formed in the upper sides 53a of the carriers 53, into which the circular knives 35 engage in the cutting position.
  • Above the carrier 53 and at a distance from the carrier 53 is a cover 56 with a plurality of recesses 56a, each associated with a circular knife 35.
  • the cover 56 delimits a conveying area 57 for the packages 21 at the top.
  • FIG 9A a further embodiment of the device 19 is shown.
  • two groups of pivot arms 37 are provided in this embodiment, a first group of pivot arms 37 being pivotable about a first pivot axis S1 and a second group of pivot arms 37 being pivotable about a second pivot axis S2.
  • the first pivot axis S1 is in the transport direction T in front of the respective circular knife 35 to be adjusted and the second pivot axis S2 is in the transport direction T behind the respective circular knife 35 to be adjusted Pivoting movement into the cutting position of the second group of pivoting arms 37.
  • the two circular knives 35 can be arranged compactly next to one another in the axial direction, which makes it possible, as in Figure 9B shown to group two circular knives 35 with a single packaging support 53 and to use the two circular knives 35 optionally with counter-cutting edges 53b, 53c of the packaging support 53.
  • FIG. 10 shows a flow chart of a method for cutting food packaging to size along a longitudinal direction with a plurality of cutting tools coupled to a support structure.
  • the method can be carried out with one of the devices 19 described above.
  • a first step A the device 19 is brought into a first operating position, ie on set a first set of desired package widths.
  • a corresponding signal is sent from the control device 41 to the respective adjustment drives in order to bring the cutting tools 35 either into the cutting position or into the passive position.
  • a second step B the device is operated in order to cut apart connected packages according to their desired widths.
  • a corresponding signal is sent from the control device 41 to the drive motor 34 in order to drive the cutting tools 35 with the drive motor 34 .
  • control device 41 sends a corresponding signal to the conveying means 27 in order to activate the conveying means 27 . If packs of a different pack width are to be produced, in a third step C the device is brought into a second operating position. At least one of the cutting tools 35 is adjusted from a cutting position to a passive position or from a passive position to a cutting position. For this purpose, a corresponding signal is again sent from the control device 41 to the respective adjusting drives. Subsequently, in a fourth step D, the device is operated in the second operating position in order to separate packages with a different package width, ie to cut them apart.
  • steps A and C as in the comparison between the figures 2 and 3 can be seen, one of the cutting tools 35 can be adjusted relative to another of the cutting tools 35 in its cutting plane between the cutting position and the passive position.
  • the adjustment mechanism 36 described above can be used to adjust the cutting tools 35 .
  • each of the adjustable cutting tools 35a can be pivoted about a pivot axis S by means of its respective pivot arm 37 in order to adjust the respective cutting tool 35a.
  • steps B and D the cutting tools 35 can be rotated by the drive motor 34 in order to cut the packages apart.

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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)
EP21206830.8A 2020-11-18 2021-11-08 Dispositif de découpe des emballages alimentaires dans une direction longitudinale et procédé de fonctionnement d'un tel dispositif Pending EP4000824A1 (fr)

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Application Number Priority Date Filing Date Title
DE102020130469.2A DE102020130469A1 (de) 2020-11-18 2020-11-18 Vorrichtung zum Zuschneiden von Lebensmittelverpackungen entlang einer Längsrichtung und Verfahren zum Betreiben einer solchen Vorrichtung

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EP4000824A1 true EP4000824A1 (fr) 2022-05-25

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022134298A1 (de) * 2022-12-21 2024-06-27 Multivac Sepp Haggenmüller Se & Co. Kg Vorrichtung zum Zuschneiden von Verpackungen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759122A (en) * 1972-05-22 1973-09-18 Filper Corp Package separator and corner cutting die for individual portions, and method
WO2017009178A1 (fr) * 2015-07-10 2017-01-19 Gea Food Solutions Germany Gmbh Cassette de coupe longitudinale
DE102018128110A1 (de) * 2018-11-09 2020-05-14 Weber Maschinenbau Gmbh Breidenbach Längsschneideeinrichtung für eine Verpackungsmaschine und Verfahren zum Einstellen und Betreiben einer solchen Längsschneideeinrichtung
EP3715267A1 (fr) * 2019-03-26 2020-09-30 Weber Maschinenbau GmbH Breidenbach Station de travail pour une machine d'emballage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20080063A1 (it) 2008-03-05 2009-09-06 Inovapak Srl Apparati e metodi per produrre contenitori
CN205169055U (zh) 2015-11-17 2016-04-20 胡少白 一种泡罩包装机的数控纵切刀装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759122A (en) * 1972-05-22 1973-09-18 Filper Corp Package separator and corner cutting die for individual portions, and method
WO2017009178A1 (fr) * 2015-07-10 2017-01-19 Gea Food Solutions Germany Gmbh Cassette de coupe longitudinale
DE102018128110A1 (de) * 2018-11-09 2020-05-14 Weber Maschinenbau Gmbh Breidenbach Längsschneideeinrichtung für eine Verpackungsmaschine und Verfahren zum Einstellen und Betreiben einer solchen Längsschneideeinrichtung
EP3715267A1 (fr) * 2019-03-26 2020-09-30 Weber Maschinenbau GmbH Breidenbach Station de travail pour une machine d'emballage

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