EP4126724A1 - Procédé d'emballage de produits et installation d'emballage - Google Patents

Procédé d'emballage de produits et installation d'emballage

Info

Publication number
EP4126724A1
EP4126724A1 EP21704513.7A EP21704513A EP4126724A1 EP 4126724 A1 EP4126724 A1 EP 4126724A1 EP 21704513 A EP21704513 A EP 21704513A EP 4126724 A1 EP4126724 A1 EP 4126724A1
Authority
EP
European Patent Office
Prior art keywords
packaging material
packaging
embossing
roll
material roll
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
EP21704513.7A
Other languages
German (de)
English (en)
Inventor
Michael Jörissen
Bernd Cox
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.)
KHS GmbH
Original Assignee
KHS GmbH
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 KHS GmbH filed Critical KHS GmbH
Publication of EP4126724A1 publication Critical patent/EP4126724A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • 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
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/12—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube
    • 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
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/063—Tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
    • B65H19/1836—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being accelerated or running prior to splicing contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1868—The roll support being of the turret type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H21/00—Apparatus for splicing webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4632—Simultaneous deformation of the two web ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5126—Embossing, crimping or similar processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1944—Wrapping or packing material

Definitions

  • the present invention relates to a method for packaging products and a packaging system for packaging products.
  • the packaging material used for packaging the products is often provided in the rolled up state in the form of rolls. In such a case, the packaging material is pulled off a packaging material roll and fed to the packaging line.
  • the packaging material is usually removed or unwound in a continuous process. If, in the case of a roll of packaging material, your supply of packaging material is exhausted or almost exhausted, the packaging line must be supplied with the packaging material from a new packaging material roll.
  • the packaging material is first removed from a first packaging material roll (also called an active roll) and fed to the packaging line.
  • a first packaging material roll also called an active roll
  • an initial section of a second packaging material roll also called supply roll
  • the second packaging material roll becomes the active role. That is, after joining, the packaging material is pulled from the second packaging material roll and fed to the packaging line.
  • a new or third roll of packaging material is then used as a supply roll, which replaces the first roll of packaging material.
  • a method of the type described above is known, for example, from the publication WO 2016/066643 A1.
  • a packaging material section of a first packaging material roll is connected to a packaging material section of a second packaging material roll by a welding process, foil being used as the packaging material.
  • the disadvantage of this method is that it cannot be used, for example, in the case of paper as a packaging material.
  • the heating and the subsequent cooling of the packaging material sections to be joined take a relatively long time, so that in this method the joining process takes a relatively long time.
  • a welding device is required in this method, which is also disadvantageous due to the usually high maintenance outlay for welding devices.
  • the present invention is based on the object of specifying a method for packaging products and a corresponding packaging system with which at least some of the above-mentioned disadvantages of the state of the art can be avoided or reduced.
  • the time and / or maintenance effort should be reduced and / or the flexibility with regard to the packaging material that can be used should be increased.
  • this object is achieved in each case by a method according to claim 1 and by a packaging system according to claim 11.
  • the packaging material is first removed from a first packaging material roll and fed to the packaging line
  • an initial section of a second packaging material roll is brought into overlap with an already withdrawn packaging material section of the first packaging material roll and is connected to the last-mentioned packaging material section, and
  • the packaging material is withdrawn from the second packaging material roll and fed to the packaging line.
  • the method according to the invention is characterized in that the two said packaging material sections are connected to one another by means of an embossing device by means of an embossing process.
  • connection formed by the embossing process between the two said packaging material sections is sufficiently resilient in the conveying direction of the packaging material so that the connection does not come loose when the packaging material is transported to the packaging line.
  • An advantage of joining two pieces of packaging material by means of an embossing process is that this type of joining can be used not only with foil, but also with other materials such as paper. Another advantage is that no consumables are required to connect the packaging material sections, such as the adhesive strips commonly used when connecting paper, which means that the method can be carried out inexpensively.
  • an embossing device is a relative one low-maintenance device, so that the method or the equipment required to carry out the method does not involve a large amount of maintenance.
  • the products to be packaged can in particular be containers for beverages, such as glass bottles, plastic bottles or cans.
  • a starting section of a packaging material roll is to be understood as a packaging material section of the packaging material roll which comprises its free or outer end.
  • a packaging material roll can be regarded as at least partially used up if its diameter falls below a predetermined diameter limit value.
  • said second packaging material roll is an unused packaging material roll.
  • This can in particular be understood to mean a roll of packaging material, the diameter of which is larger, e.g. at least 100% larger, preferably at least 150% larger, than the said diameter limit value.
  • the second packaging material roll preferably comprises the same packaging material as the first packaging material roll. Furthermore, it is useful if the two said rolls of packaging material have the same width.
  • an embossing pattern is advantageously produced on the two packaging material sections to be connected. This can, for example, have a matrix-shaped arrangement of embossing points.
  • the first packaging material roll expediently rotates at a predetermined rotational speed while the packaging material is pulled from the first packaging material roll.
  • the specified rotational speed can in particular be dependent on the (instantaneous) diameter of the first packaging material roll. That is, the speed of rotation of the first The roll of packaging material can vary over time, in particular in such a way that the speed of rotation increases as the diameter of the first roll of packaging material increases.
  • the rotational speed of the first packaging material roll is reduced.
  • the rotational speed of the first packaging material roll is reduced to zero, i.e. the first packaging material roll is brought to a standstill.
  • packaging material of the first packaging material roll is advantageously temporarily stored in a buffer device.
  • the second packaging material roll is expediently accelerated until it has reached a predetermined rotational speed.
  • the packaging material can be, for example, paper.
  • the so-called folding flaps - are folded or applied and at least some of the folding flaps have glue is applied.
  • the packaging material can be, for example, a film material, in particular shrink film.
  • the packaging material is shrunk by a thermal shrinking process.
  • the packaging material can be a printed or an unprinted packaging material.
  • the starting section of the second packaging material roll is connected directly or essentially directly at its transverse edge to said packaging material section of the first packaging material roll. This can prevent an area from forming at the start section of the second packaging material roll in front of the connection point, which can possibly stand out from said packaging material section of the first packaging material roll, whereby an unintentional loosening of the connection can be more reliably avoided.
  • the transverse edge of the starting section of the second packaging material roll is to be understood as the edge of the starting section running in the width direction of the second packaging material roll.
  • the wording that the starting section of the second packaging material roll is connected “essentially directly” at its transverse edge to said packaging material section of the first packaging material roll can be understood to mean that the starting section of the second packaging material roll stood at a distance of at most 10 mm, preferably at most 5 mm, is connected to its transverse edge with the other packaging material section.
  • the packaging material section of the first packaging material roll connected to the starting section of the second packaging material roll is separated from the still wound part of the first packaging material roll.
  • the first roll of packaging material can be exchanged, for example, for a third, preferably unused, roll of packaging material.
  • a product combination with the packaging material is packed in the packaging line in such a way that the packaging formed from the packaging material for the product combination includes the connection point at which the two said packaging material sections are connected to one another.
  • the aforementioned product combination can comprise a single product to be packaged or a plurality of products to be packaged, in particular a plurality of grouped products. If the majority of products are referred to below, this should also include the possibility that the product combination only includes a single product to be packaged.
  • the product combination can include a base, in particular made of cardboard or cardboard, on which the products to be packaged are arranged.
  • the base can be a so-called tray or pad, for example.
  • the product assembly can include, for example, packaging, in particular made of cardboard or cardboard, in which the products to be packaged are arranged and which at least partially surrounds the products to be packaged on all sides.
  • packaging in particular made of cardboard or cardboard, in which the products to be packaged are arranged and which at least partially surrounds the products to be packaged on all sides.
  • the product assembly includes such a base or such packaging, it is expediently provided that the products to be packaged are packed in the packaging line together with the base or the packaging with said packaging material.
  • the product combination is packaged in such a way that, in the case of the packaging formed from the packaging material, the starting section of the second packaging material roll is further out than the packaging material section of the first packaging material roll that overlaps with the starting section of the second packaging material roll.
  • the first packaging material roll is arranged on a first rotatably mounted mandrel, while the second packaging material roll is arranged on a second rotatably mounted mandrel.
  • the position of both mandrels preferably by a pivoting movement of both mandrels, exchanged, the first mandrel is brought into the previous position of the second mandrel and the second mandrel is brought into the previous position of the first mandrel.
  • the packaging material sections of the active roll and the supply roll to be connected always overlap in the same way. This means that the overlap can take place in such a way that the initial section of the supply roll is either always on top or always on the bottom.
  • the position of the two mandrels is advantageously exchanged automatically by means of one or more drive devices.
  • the first mandrel and the second mandrel are preferably pivoted about a fixed pivot axis that is parallel to the respective mandrel axis.
  • the position of the two mandrels is preferably exchanged in the following chronological order:
  • the first mandrel with the first packaging material roll is located in a first position.
  • the first mandrel with the first packaging material roll is still in the first position, while the second packaging material roll is in a second position.
  • the first mandrel preferably after the first packaging material roll has been exchanged for the third packaging material roll, is brought into the second position and the second mandrel is brought into the first position with the second packaging material roll.
  • the two packaging material sections to be connected are in the embossing process between one rotating embossing roller of the embossing device and an opposing surface of the embossing device pressed in.
  • the packaging material is expediently transported before and / or after the embossing process in the region of the embossing device along a conveying direction.
  • the aforementioned embossing roller is moved perpendicular to the conveying direction during the embossing process, preferably with the aid of a drive unit, and that the opposing surface is stationary.
  • the embossing roller is expediently moved at least over a distance during the embossing process which is equal to the width of the respective packaging material roll.
  • the embossing roller has an axis oriented perpendicular to the conveying direction and the counter surface is a peripheral surface of a further rotating embossing roller whose axis is oriented perpendicular to the conveying direction.
  • the two embossing rollers preferably have a predetermined distance from one another before the embossing process.
  • the distance between the embossing rollers is advantageously reduced to such an extent that the packaging material sections to be connected are pressed in between the embossing rollers. It can be provided here that one of the two embossing rollers remains in its position while the other embossing roller is moved towards it. Alternatively, both embossing rollers can be moved towards one another.
  • the embossing pattern generated during the embossing process preferably comprises a smaller number of embossing points in the conveying direction than perpendicular to the conveying direction. In this way it can be achieved that the connection in the conveying direction (on tension) can be relatively heavily loaded, while the connection perpendicular to the overlap plane can easily be released.
  • the packaging system according to the invention has a packaging line for packing the products to be packaged with a packaging material as well as one Supply device for supplying the packaging line with the packaging material.
  • Said supply device comprises the following:
  • a connecting device for connecting an initial section of the second packaging material roll with an already withdrawn packaging material section of the first packaging material roll which overlaps with the initial section of the second packaging material roll.
  • the packaging system according to the invention is characterized in that the connecting device is designed as an embossing device and is set up to connect the two said packaging material sections to one another by means of an embossing process.
  • the advantages mentioned in connection with the method according to the invention also apply analogously to the packaging system according to the invention and vice versa. Furthermore, the method according to the invention is preferably carried out with the aid of the packaging system according to the invention.
  • the packaging system is advantageously designed to process different types of packaging material, such as film, in particular shrink film, and paper.
  • the packaging system preferably comprises a separate drive motor for each of the two mandrels, in particular its own servomotor, for driving the respective mandrel.
  • the two mandrels are mounted so that they can be changed in position in such a way that the two mandrels change their position, preferably by a pivoting movement of the two mandrels can swap with each other.
  • the first mandrel and the second mandrel can be pivotable about a stationary pivot axis which is parallel to the respective mandrel axis and which is preferably arranged centrally between the two mandrels.
  • the embossing device of the packaging system expediently has a rotatably mounted embossing roller and a counter surface.
  • the embossing device is preferably set up to impress the two packaging material sections to be connected between the embossing roller and the mating surface during the embossing process.
  • the supply device has a conveying device for conveying the packaging material which is set up to transport the packaging material in the region of the embossing device along a conveying direction.
  • the embossing roller of the embossing device can, for example, be movable perpendicular to the conveying direction.
  • the embossing device is preferably directed to press the two packaging material sections to be connected during the embossing process with a fixed opposing surface between the embossing roller and the opposing surface.
  • the term “fixed” is to be understood in the present case in such a way that the opposing surface does not move with the movement of the embossing roller.
  • Said opposite surface can be, for example, a surface over which the packaging material is guided.
  • suction openings for sucking in and fixing the packaging material by means of a negative pressure can optionally be provided.
  • the embossing device can, for example, have a guide rail running perpendicular to the conveying direction and a linear one along it the guide rail have movable carriage on which the embossing roller is rotatably mounted.
  • the embossing device of the packaging system can have a further rotatably mounted embossing roller in addition to the already mentioned embossing roller.
  • the said opposing surface is a circumferential surface of the further embossing roller and the two embossing rollers can be moved relative to one another. Both embossing rollers can be moved here.
  • one of the two embossing rollers can be arranged in a stationary manner, while only the other of the two embossing rollers can be moved.
  • the axis of the respective embossing roller is preferably aligned perpendicular to the conveying direction.
  • the respective embossing roller preferably has a structured surface with a plurality of elevations, in particular elevations arranged equidistant from one another.
  • the elevations can, for example, be conical or pyramidal.
  • the supply device of the packaging system has one or more sensors for measuring the diameter of a roll of packaging material.
  • the supply device preferably comprises a separating device by means of which the aforementioned separating can be carried out, in which, after the two said packaging material sections have been connected, the packaging material section of the first packaging material roll connected to the initial section of the second packaging material roll from the still wound part of the first packaging material roll is separated.
  • the packaging system comprises a cutting station, which is connected downstream of the embossing device and upstream of the packaging line, for cutting an uninterrupted web of packaging material into individual pieces of packaging material.
  • a cutting station which is connected downstream of the embossing device and upstream of the packaging line, for cutting an uninterrupted web of packaging material into individual pieces of packaging material.
  • the packaging line can comprise a shrink tunnel for thermally shrinking the packaging material.
  • the packaging line can comprise one or more adhesive nozzles for applying adhesive to the packaging material and / or one or more folding devices for folding or applying folding flaps.
  • the supply device comprises a buffer device arranged behind the embossing device for temporarily storing the packaging material.
  • FIG. 1-4 a first embodiment of a packaging system according to the invention in four different states
  • 5 & 6 show a second exemplary embodiment of a packaging system according to the invention in two different states.
  • FIG. 1 schematically shows a packaging system 1 for packaging products 2, in particular beverage containers, with a packaging material 3.
  • the packaging system 1 comprises a packaging line 4 with a conveyor 5 on which the products 2 to be packaged are transported along a transport direction 6, a wrapping module 7 and a folding and gluing module 8. Furthermore, the packaging system 1 comprises a supply device 9 for supplying the Packaging line 4 with the packaging material 3.
  • the packaging material 3 is paper, in particular printed paper.
  • the products 2 to be packaged are, by way of example, beverage cans, with the packaging system 1 basically also being suitable for packaging other beverage containers, such as glass or plastic bottles.
  • Each product combination 10 comprises several grouped products 2 and a product base 11 on which the grouped products 2 are arranged.
  • the product base 11 can, for example, be designed as a so-called tray.
  • the respective product assembly 10 to be packaged is supplied with the aid of the conveyor 5 as an unpacked product assembly 10a Wrapping module 7 of the packaging line 4 promoted.
  • the respective product assembly 10 is wrapped with the packaging material 3 in such a way that the packaging material 3 encloses the upper side, the underside and - in relation to the transport direction 6 - the front and the rear side of the product assembly 10.
  • Lateral - based on the transport direction 6 - is the packaging material 3 from the respective product compilation from 10 and forms so-called folding flaps.
  • the respective product combination 10 is transported with the aid of the conveyor 5 to the folding and gluing module 8, in which the folding flaps are applied with glue, in particular with the help of glue nozzles, and folded with the help of folding devices.
  • the respective product assembly 10 leaves the packaging line 4 as a packaged product assembly 10b.
  • the packaging line 4 is supplied by the aforementioned supply device 9 of the packaging system 1 with the packaging material 3 with which the products 2 or the product combinations 10 are packaged.
  • the supply device 9 comprises a first rotatably mounted mandrel 12 and a second rotatably mounted mandrel 13. For each of the two mandrels 12, 13, the supply device 9 has its own drive motor (not shown in the figures), in particular a servomotor, for driving the respective mandrel 12, 13.
  • a first packaging material roll 14 is arranged on the first mandrel 12, while a second packaging material roll 15 is arranged on the second mandrel 13.
  • the second packaging material roll 15 forms a supply roll.
  • the two packaging material rolls 14,15 have the same width, which is greater than the width of the product assemblies to be packaged 10. Before lying, the width of the packaging material rolls 14, 15 or the product assemblies to be packaged 10 is to be understood as that dimension which extends perpendicular to the plane of the drawing of FIG.
  • Both mandrels 12, 13 are mounted pivotably about a stationary pivot axis 16 which is arranged centrally between the two mandrels 12, 13 and which runs parallel to the two mandrel axes. With the aid of a drive unit (not shown in the figures), the two mandrels 12, 13 can be pivoted about said pivot axis 16 in a common or simultaneous pivoting movement.
  • the supply device 9 has an embossing device 17, which is described in more detail below.
  • the supply device 9 has a conveyor device 19 comprising a plurality of driven conveyor rollers 18.
  • the packaging material 3 is transported with the aid of the conveying device 19 along a predetermined, in particular horizontal conveying direction 20.
  • the supply device 9 Downstream of the embossing device 17, the supply device 9 has a buffer device 21 for temporarily storing the packaging material 3.
  • the buffer device 21 comprises several upper deflecting rollers 22a and several lower deflecting rollers 22b, on which the packaging material 3 is deflected on its way to the packaging line 4, the distance between the upper deflecting rollers 22a and the lower deflecting rollers 22b being adjustable.
  • the distance between the upper Deflection rollers 22a and the lower deflection rollers 22b enlarged.
  • the distance between the upper deflection rollers 22a and the lower deflection rollers 22b is reduced in order to reduce the amount of packaging material 3 temporarily stored in the buffer device 21.
  • the supply device 9 can have a dancer (not shown in the figures).
  • a dancer is a device which is used to keep the packaging material 3 under tension.
  • a dancer comprises two units of deflection pulleys that can be pivoted relative to one another. In order to tighten the packaging material 3, these two units are pivoted away from one another. Conversely, the two units are pivoted towards one another in order to reduce the tension on the packaging material 3.
  • the supply device 9 Downstream of the buffer device 21, the supply device 9 has a cutting station 23. This is used to cut the packaging material 3, which is in the form of an uninterrupted web of material up to the cutting station 23, into individual pieces of packaging material, with which the products to be packed 2 or product combinations 10 are packed in the packaging line 4.
  • the aforementioned embossing device 17 comprises a guide rail 24, the longitudinal extent of which runs perpendicular to said conveying direction 20 in the region of the embossing device 17. That is, the longitudinal extension of the guide rail 24 runs perpendicular to the plane of the drawing in FIG. 1.
  • the embossing device 17 has an embossing roller 25 and a carriage 26 which can be moved linearly along the guide rail 24 and on which the embossing roller 25 is rotatably mounted.
  • the axis 27 of the embossing roller 25 runs along the said conveying direction 20.
  • the embossing device 17 comprises a bar-shaped base 28, for example made of aluminum.
  • the embossing roller 25 is mounted, for example by means of one or more springs, in such a way that the embossing roller 25 presses with a predetermined contact force against a surface of the substrate 28, referred to below as the opposing surface 29.
  • the embossing device 17 comprises a (figuratively not shown) drive unit for driving the carriage 26. This can, for example, be a working cylinder or comprise a working cylinder.
  • the base 28 has several suction openings on its counter surface 29 and is connected to a vacuum source 30, for example in the form of a vacuum pump.
  • the negative pressure source 30 generates at the suction openings egg NEN negative pressure with which the packaging material 3 is sucked on the counter surface 29 GE.
  • the supply device 9 has a separating device 31 upstream of the embossing device 17, which is used each time after two packaging material sections have been connected by means of the embossing device 17.
  • the supply device comprises a measuring sensor 32 for measuring the diameter of a roll of packaging material as well as a control device 33 connected to the measuring sensor 32, in whose data memory a control algorithm is stored.
  • the diameter of the first packaging material roll 14 is monitored with the aid of the measuring sensor 32.
  • the measuring sensor 32 generates a measuring signal, which depends on the diameter of the first packaging material roll 14, and transmits this to the control device 33.
  • the control device 33 controls, among other things, the embossing device 17, the conveying device 19, the buffer device 21, the separating device 30, the cutting station 23, the drive motors for the mandrels 12, 13 and the previously mentioned drive units as a function of the measurement signal generated by the measurement sensor 32.
  • the first packaging material roll 14 forms the active role. That is, the packaging material 3 is pulled from the first packaging material roll 14 and fed to the packaging line 4.
  • the first mandrel 12 rotates at a predetermined speed of rotation in the withdrawal direction of rotation (in the view of Fig. 1 counterclockwise), the speed of rotation depends on the diameter of the first packaging material roll 14.
  • the first Verpa ckungsmaterial-roll 14 has a diameter that still approximately corresponds to their original diameter.
  • the amount of packaging material 3 stored in the buffer device 21 is increased by the distance between the upper deflection rollers 22a and the lower deflection rollers 22b of the buffer device 21 is increased.
  • the first mandrel 12 is brought to a standstill. Subsequently, a starting section 34 of the second packaging material roll 15 in the area of the embossing device 17 is brought into overlap with an already withdrawn packaging material section 35 of the first packaging material roll 14 (see FIG. 2).
  • the starting section 34 of the second packaging material roll 15 and the already withdrawn packaging material section 35 of the first packaging material roll 14 are connected to one another by means of the embossing device 17 by an embossing process.
  • the carriage 26 is moved together with the embossing roller 25 mounted on the carriage 26 using the drive unit (not shown) of the embossing device 17 over the entire width of the two packaging material sections 34, 35 to be bound, perpendicular to the drawing plane of FIG. 1.
  • the packaging material sections to be connected 34, 35 are pressed in between the rotating embossing roller 25 of the embossing device 17 and the mating surface 29 of the embossing device 17.
  • the starting section 34 of the second packaging material roll 15 is preferably connected to the other packaging material section 35 directly at its transverse edge.
  • Fig. 2 shows the packaging system 1 from FIG. 1 in a state in which the said packaging material sections 34, 35 in the area of the embossing device 17 have been brought into overlap with one another.
  • the packaging line 4 is supplied with the packaging material 3 by means of the buffer device 21, the distance between the upper deflection rollers 22a and the lower deflection rollers 22b of the buffer device 21 being continuously reduced.
  • the said packaging material section 35 of the first packaging material roll 14 is separated from the still wound part of the first packaging material roll 14 using the separator 31. Then the first mandrel 12 is counter to its original direction of rotation (ie in the view of Fig. 2 in the clockwise sense) rotated until the before the separation process from the first packaging mate rial roll 14 to the separator 31 reaching packaging material section 36 again the packaging material roll 14 is wound up.
  • the second packaging material roll 15 forms the active role. That is to say, the packaging material 3 is now withdrawn from the second packaging material roll 15 and fed to the packaging line 4.
  • the second mandrel 13 is now rotated. The second mandrel 13 is initially accelerated from a standstill until it has reached a predetermined speed Rotationsge.
  • the position of the two mandrels 12, 13 - and thus also the position of the two packaging material rolls 14, 15 - is swapped.
  • the first mandrel 12 is brought into the previous position of the second mandrel 13, while the second mandrel 13 is brought into the previous position of the first mandrel 12.
  • the position exchange of the two mandrels 12, 13 is carried out by a joint Pivoting movement of the two mandrels 12, 13 about the previously mentioned pivot axis 16.
  • the two mandrels 12, 13 are pivoted clockwise about the pivot axis 16.
  • the second mandrel 13 is driven in such a way that the tension of the packaging material 3, which is withdrawn from the second packaging material roll 15 and fed to the packaging line 4, remains constant or essentially constant.
  • This envisionzu compilation 10 is packed with said portion of the packaging material 3, which includes the connection point, in the packaging line 4 in such a way that in the packaging formed from the packaging material 3, the beginning section 34 of the second packaging material roll 15 is further out than the be said Packaging material section 35 of the first packaging material roll 14.
  • FIG 3 shows the packaging system 1 from FIGS. 1 & 2 after the position of the two mandrels 12, 13 has been exchanged. In this state, the diameter of the second packaging material roll 15 is now monitored by means of the measuring sensor 32.
  • the first packaging material roll 14 is exchanged for a third, unused packaging material roll 37 (see FIG. 4), which forms the new supply roll.
  • FIG. 4 shows the packaging system from FIGS. 1-3 after the first packaging material roll 14 has been exchanged for the third packaging material roll 37.
  • FIG. 5 schematically shows a further packaging system 38 for packaging products 2, in particular beverage containers, with a packaging material 3.
  • the packaging material 3 is a shrinkable film, in particular a printed shrinkable film.
  • the product assemblies 10 to be packaged in the present exemplary embodiment do not include any product support on which the packaging products 2 are arranged. In principle, however, it would also be possible in the present exemplary embodiment to provide a product underlay for the respective product combination 10.
  • the packaging line 4 in the exemplary embodiment from FIG. 5 comprises, downstream of the wrapping module 7, a shrink tunnel 39 in which the packaging material 3 is thermally shrunk.
  • an embossing device 40 is provided. This comprises a first rotatably mounted embossing roller 41 and a second rotatably mounted embossing roller 42.
  • the axis of the respective embossing roller 41, 42 runs perpendicular to the conveying direction 20, along which the packaging material 3 is conveyed in the area of the embossing device 40.
  • Both embossing rollers 41, 42 have a width which is at least as large as the width of the two packaging material rollers 14, 15.
  • the first embossing roller 41 is coupled to a drive unit 43, for example in the form of a working cylinder.
  • the first embossing roller 41 can be moved towards or away from the second embossing roller 42.
  • the two packaging material sections to be connected are pressed in between the two embossing rollers 41, 42. This is achieved in that the first embossing roller 41 is moved against the second embossing roller 42 when the two packaging material sections to be connected are between the embossing rollers 41, 42.
  • the second embossing roller 42 forms the counter surface 29 required for the embossing process.
  • the packaging material sections to be connected advantageously run through between the two embossing rollers 41, 42.
  • the embossing device 40 With the help of the embossing device 40, two packaging material sections of the two packaging material rolls 14, 15 to be connected can be connected to one another without the need to unwind the packaging material 3 from the respective packaging material roll 14, 15 during the embossing process interrupt.
  • a buffer device of the type described above can in principle be dispensed with. Nevertheless, such a buffer device can optionally also be provided in the present exemplary embodiment in order to be able to temporarily store packaging material 3 if necessary.
  • the first packaging material roll 14 is the active role, wherein the first packaging material roll 14 has a diameter which still approximately corresponds to its original diameter.
  • the two embossing rollers 41, 42 are spaced apart from one another in this state.
  • FIG. 6 shows the packaging system 38 from FIG. 5 - after the diameter of the first packaging material roll 14 has reached a predetermined diameter limit value Has fallen below - during an embossing process, in which a starting section 34 of the second packaging material roll 15 is connected ver with an already withdrawn packaging material section 35 of the first packaging material roll 14. In this state, the two said packaging material sections 34, 35 are pressed in between the two embossing rollers 41, 42.
  • the packaging system 1 from FIGS. 1-4 it is possible, in the packaging system 1 from FIGS. 1-4, to replace their embossing device 17 with the embossing device 40 of the packaging system 38.
  • its embossing device 40 can be replaced by the embossing device 17 of the packaging system 1 from FIGS. 1-4, in which case the packaging system 38 from FIGS a buffer device of the type described above is permitted.
  • the packaging line 4 it is possible for the packaging line 4 to have both a folding and gluing module and a shrinking tunnel. This is particularly advantageous when the respective packaging system 1, 38 is to be suitable for processing both paper and shrinkable film as packaging material.
  • Embossing device first embossing roller second embossing roller

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

L'invention se rapporte à un procédé d'emballage de produits (2), dans lequel les produits (2) à emballer sont emballés au moyen d'un matériau d'emballage (3) sur une ligne d'emballage (4), - le matériau d'emballage (3) étant tout d'abord tiré d'un premier dévidoir de matériau d'emballage (14) et introduit dans la ligne d'emballage (4), - lorsque le premier dévidoir de matériau d'emballage (14) a été au moins partiellement utilisé, une partie initiale (34) d'un second dévidoir de matériau d'emballage (15) étant amenée à chevaucher une partie de matériau d'emballage (35) déjà tirée hors du premier dévidoir de matériau d'emballage (14) et étant jointe à cette dernière partie de matériau d'emballage (35), et - après que les deux parties de matériau d'emballage (34, 35) ont été jointes l'une à l'autre, le matériau d'emballage (3) étant tiré hors du second dévidoir de matériau d'emballage (15) et introduit dans la ligne d'emballage (4). Le procédé selon l'invention est caractérisé en ce que les deux parties de matériau d'emballage (34, 35) mentionnées ci-dessus sont assemblées par un moyen d'estampage d'un dispositif d'estampage (17, 40). L'invention concerne aussi une installation d'emballage (1) destinée à mettre en œuvre le procédé.
EP21704513.7A 2020-03-25 2021-02-10 Procédé d'emballage de produits et installation d'emballage Pending EP4126724A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020108158.8A DE102020108158A1 (de) 2020-03-25 2020-03-25 Verfahren zum Verpacken von Produkten sowie Verpackungsanlage
PCT/EP2021/053147 WO2021190816A1 (fr) 2020-03-25 2021-02-10 Procédé d'emballage de produits et installation d'emballage

Publications (1)

Publication Number Publication Date
EP4126724A1 true EP4126724A1 (fr) 2023-02-08

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US (1) US20230115847A1 (fr)
EP (1) EP4126724A1 (fr)
DE (1) DE102020108158A1 (fr)
WO (1) WO2021190816A1 (fr)

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Publication number Priority date Publication date Assignee Title
FI129673B (en) * 2021-06-15 2022-06-30 Valmet Technologies Oy Method and device for joining ends of fiber webs in connection with the replacement of a base roll in a unwinding machine
CN114834928B (zh) * 2022-05-26 2023-12-01 常州赛瑞工程技术有限公司 一种热固预浸料生产线上下物料换卷系统

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
GB919111A (en) * 1958-12-05 1963-02-20 Kihachiro Ota Improvements in or relating to devices for splicing web material
NL8101588A (nl) * 1981-03-31 1982-10-18 Tevopharm Schiedam Bv Werkwijze en inrichting voor het aan elkaar hechten van verpakkingsmateriaal-banen.
JPS59177253A (ja) * 1983-03-24 1984-10-06 Ishizu Seisakusho:Kk 連鎖状折畳ウエブ積層体製造機
SE466055B (sv) 1990-04-18 1991-12-09 Duni Ab Saett och anordning foer skarvning av minst tvaa av en- eller flerskiktsmaterial bestaaende luftgenomslaeppliga mjukpappersbanor
EP0662437B1 (fr) * 1993-12-16 1995-07-19 Fabriques De Tabac Reunies S.A. Dispositif de raccordement de bandes en un matériau souple
IT1321284B1 (it) 2000-06-05 2004-01-08 Gd Spa Dispositivo per la giunzione automatica di nastri svolti da bobine.
JP2003252495A (ja) * 2002-03-04 2003-09-10 Orion Kikai Kogyo Kk 紙接続装置及び紙接続方法
DE102014222170A1 (de) 2014-10-30 2016-05-04 Krones Aktiengesellschaft Verfahren und Vorrichtung zur Handhabung von auf Rollen gewickeltem Flach- und/oder Folienmaterial

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DE102020108158A1 (de) 2021-09-30
US20230115847A1 (en) 2023-04-13
WO2021190816A1 (fr) 2021-09-30

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