WO2023170044A1 - Dispositif pour sceller et/ou rétracter des enveloppes extérieures d'emballages - Google Patents

Dispositif pour sceller et/ou rétracter des enveloppes extérieures d'emballages Download PDF

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Publication number
WO2023170044A1
WO2023170044A1 PCT/EP2023/055708 EP2023055708W WO2023170044A1 WO 2023170044 A1 WO2023170044 A1 WO 2023170044A1 EP 2023055708 W EP2023055708 W EP 2023055708W WO 2023170044 A1 WO2023170044 A1 WO 2023170044A1
Authority
WO
WIPO (PCT)
Prior art keywords
conveyor
support part
heating element
packs
movable support
Prior art date
Application number
PCT/EP2023/055708
Other languages
German (de)
English (en)
Inventor
Carsten Winter
Jost Bergmann-Kramer
Dirk Förstmann
Ramon RUTKOWSKI
Original Assignee
Focke & Co. (Gmbh & Co. Kg)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Focke & Co. (Gmbh & Co. Kg) filed Critical Focke & Co. (Gmbh & Co. Kg)
Publication of WO2023170044A1 publication Critical patent/WO2023170044A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/02—Packaging cigarettes
    • B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
    • B65B19/223—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers in a curved path; in a combination of straight and curved paths, e.g. on rotary tables or other endless conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/54—Feeding articles along multiple paths to a single packaging position
    • 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

Definitions

  • the present invention relates to a device for sealing and/or shrinking outer wrappings consisting of sealable and/or shrinkable film of preferably cuboid-shaped packs, in particular packs for smokable products from the tobacco industry, with at least one element which can be moved back and forth in cycles between a starting position and a heat transfer position Heating element, as well as with at least one conveyor with which the packs with partially finished outer casings can each be conveyed into one or towards a predetermined processing position, in which the outer casing of the respective pack is in the heat transfer position of the heating element with the latter resting against the outer casing with heat can be acted upon, in particular for sealing and/or shrinking the outer casing.
  • Such sealing and/or shrinking devices are used, for example, in packaging machines with which cigarettes or similar smokable products are packed into appropriate packs. These devices are highly complex and are usually adapted to the specified formats of the packages to be handled. However, there is a need to be able to handle packs of different formats in a packaging machine and in particular in the sealing and/or shrinking device of the same.
  • the object of the present invention is to further develop the device mentioned at the outset.
  • the heat transfer position of the heating element and/or the position of the conveyor can be designed to be changeable in order to adapt the device to packages of different dimensions.
  • the device has a stationary (main) support part that can be placed or placed in particular on a base forming a floor, in particular a support plate or a support frame, as well as a fixed support part, in particular according to Loosening fastening means relative to the stationary support part movable support part, in particular a support plate, on which at least the heating element and / or at least the conveyor, preferably designed as a belt conveyor, is arranged, in particular fastened, in such a way that it is moved when the movable support part moves, wherein the device has a preferably manually operated adjustment device, in particular an adjustment lifting device, with which the position of the movable support part and thus of the heating element and / or conveyor attached to it can be changed relative to the stationary support part in order to adapt the device to packages of different dimensions.
  • a stationary (main) support part that can be placed or placed in particular on a base forming a floor, in particular a support plate or a support frame, as well as a fixed support part, in particular according to
  • Such a support part which is movable relative to the stationary support part, makes it possible, among other things, to change distances between several selected, interacting components of the device in a simple and reliable manner and in this way to adapt them to different formats of packages.
  • one or more heating elements of the device which apply heat to the packs from one side, while an opposite side of the respective pack rests on a stop element that interacts with the heating element, can be arranged on the movable support part and the one or more Stop elements on the stationary support part.
  • the heating element or elements could also be arranged on the stationary support part and the stop element or elements on the movable support part.
  • the heating element can be arranged on one side of a particularly horizontal conveying plane along which the conveyor of the device transports the packs, in particular above or below the same, preferably downstream of the conveyor, on this side Heating element can be moved back and forth between the starting position and the heat transfer position in a plane perpendicular to the conveying plane, in particular in a vertical plane; and on the other side of the conveying plane, a stop element can be arranged at a distance from the heating element, in particular a stop plate, the distance being dimensioned such that the heating element presses the respective packing against the stop element in the heat transfer position when the packing is between the stop element and the heating element.
  • the heating element can be arranged, see also above, on the movable support part and the stop element on the stationary support part.
  • the heating element can be arranged on the stationary support part and the stop element on the movable support part, whereby in order to adapt the distance between the heating element and the stop element to different dimensions of the packs, this distance can be changed with the adjusting device by changing the position of the movable support part.
  • this can preferably be arranged upstream of the heating element in the conveying direction of the packs and comprise a circulating belt or belt with drivers which conveys the packs along a stationary conveyor track, in particular attached to the stationary support part, in particular below sliding system on or under sliding support on this conveyor track.
  • the conveyor track can, for example, be a stationary conveyor plate or have a plate-like structure.
  • the heating element and the conveyor can be arranged together on the movable support part, in particular fastened, in the area of the conveyor on one side of the conveying plane, in particular above or below it, preferably on the side that is opposite the side on which the Movable support part arranged heating element positioned downstream of the conveyor is arranged, a further heating element attached to the stationary support part Applying heat to the partially finished outer casings of the packs is arranged, which can be moved back and forth intermittently, in particular in a plane perpendicular to the conveying plane, preferably in a vertical plane, between a starting position and a heat transfer position.
  • a stop element attached to the movable supporting part can then be arranged at a distance from the further heating element, in particular a stop plate, the distance here again being dimensioned such that the further heating element counteracts the respective packing in the heat transfer position the stop element presses when the pack is between the stop element and the further heating element.
  • the heating element and/or the further heating element can be operatively connected to the, in particular via a transmission, possibly via its own transmission, preferably comprising a coupling gear Motor shaft of a motor mounted in particular on the stationary support part, so that the rotational movements of the motor shaft of the motor are transmitted into the intermittent movements of the or each heating element.
  • a transmission possibly via its own transmission, preferably comprising a coupling gear Motor shaft of a motor mounted in particular on the stationary support part, so that the rotational movements of the motor shaft of the motor are transmitted into the intermittent movements of the or each heating element.
  • the heating element and the further heating element can each be operatively connected to the motor shaft of one and the same motor via their own, separate gear.
  • the conveyor is arranged on the movable support part, it can be operatively connected, in particular via a drive belt, to the motor shaft of a motor which drives the conveyor and is mounted or fastened in particular on the stationary support part, so that the rotational movements of the motor shaft of the motor are transmitted into the conveying movements of the conveyor or changed/translated.
  • this is preferably designed and connected to the movable supporting part in such a way that when the position of the movable supporting part is changed by means of the adjusting device by moving at least one Part of the transmission, the heat transfer position and the starting position of the heating element is changed while maintaining the working stroke of the heating element defined by this, in particular in such a way that the distance is reduced or increased between the heating element on the one hand (in its heat transfer position) and the stop element on the other.
  • the device can have at least one pair of heating elements that can be moved back and forth in cycles between a respective starting position and a respective heat transfer position, namely at least one pair of side heating elements, which apply pressure to the outer wrapping on opposite sides of the pack at the same time.
  • the (possibly respective) pair of side heating elements is operatively connected to the motor shaft of a motor mounted in particular on the stationary support part via a gear, which is designed in particular as a coupling gear.
  • the active connection is designed in such a way that the rotational movements of the motor shaft are transmitted into the intermittent movements of the side heating elements of the pair of side heating elements.
  • the transmission has pivoting levers to which the side heating elements are secured in a rotationally fixed manner and which can each be pivoted cyclically from a starting position to an end position in which the respective side heating element is in its position
  • Heat transfer position is located, with each pivot lever changing its respective end position and thus changing the
  • Heat transfer position of the respective side heating element is attached to one of two slides, which are mounted in a linearly movable manner on a common axis to change the distance between them.
  • each pivot lever can also be rotatably mounted on a support piece of the respective carriage to which it is attached, with the motor being attached to one of the carriages so that it moves accordingly when the carriage moves.
  • the carriages on the common axis can be movable along or on the common axis, preferably synchronously, reducing their distance from one another or increasing their distance from one another.
  • This movement can be carried out in particular by means of an adjustment device that can preferably be operated manually (but possibly also motor-driven), such as a handwheel.
  • the transmission is designed as a coupling gear and has a rocker arm, the pivot axis of which is arranged between the two carriages, two coupling members, which are each rotatably mounted on the rocker arm on the one hand and rotatable on one of the pivot levers on the other hand, and one eccentrically Connecting rod coupled to the engine, through which the rocker arm can be rotated about its pivot axis.
  • the intermittent movements of the heating element attached to the movable support part and the intermittent movements of the pair of side heating elements can also be effected by one and the same motor, the or each coupling gear, via which the or each heating element is operatively connected to the motor shaft, having a pivoting lever , which, together with the rocker arm of the or each coupling gear, via which the pair of side heating elements is operatively connected to the motor shaft, is rotatably mounted on the pivot axis arranged between the two carriages.
  • the drive belt can be guided along a drive wheel coupled to the motor shaft of the motor and transmit the drive movements of the drive wheel to the conveyor arranged on the movable support part.
  • the drive belt for transmitting the driving force to the conveyor is guided along a deflection wheel of the conveyor which drives a conveyor belt or a conveyor belt of the conveyor.
  • a further conveyor can be attached to the stationary support part, in particular downstream of the conveyor arranged on the movable support part, with which the packs with partially finished outer wrappings can each be conveyed into one or in the direction of a predetermined processing position.
  • the motor in particular the drive wheel coupled to it, can also drive the other conveyor at the same time.
  • a conveyor belt of the further conveyor is guided along the drive wheel for transmitting driving force to the conveyor belt or conveyor belt (together with the drive belt).
  • the two conveyors can connect directly to one another in the conveying direction of the packs and conveyor belts or conveyor belts with drivers have, which convey the packs in a particularly horizontal (common) conveying level, the movements of the drivers of the conveyors within the conveying level being synchronized in such a way that the packs are transferred from one conveyor to the other conveyor with the participation of the drivers in a transfer area in transfer phases become.
  • the movable support part can be movable relative to the stationary support part, particularly when the conveyor is at a standstill, by the adjusting device in such a way that the conveyor belt of the conveyor arranged on it is moved in particular perpendicular to the conveyor plane, preferably while maintaining the - based on its positions in the conveyor plane - respective current relative positions of the drivers of the two conveyors to one another. This is particularly so that no resynchronization of the movements of the drivers is necessary.
  • the above-mentioned drive belt can also be guided along two rollers, each of which is mounted on a pivotable roller bearing, in particular attached to the stationary support part, the axes of rotation of the rollers being symmetrical on both sides of one through the axis of rotation of the drive wheel and through the axis of rotation the imaginary connecting line running along the deflection wheel.
  • the axes of rotation of the rollers being symmetrical on both sides of one through the axis of rotation of the drive wheel and through the axis of rotation the imaginary connecting line running along the deflection wheel.
  • the movements of the drivers of the conveyors in the conveying plane are synchronized in such a way that two drivers of the conveyors in the transfer area lie opposite each other at a distance in each transfer phase in a common plane, in particular perpendicular to the conveying plane, preferably in a plane, in which the imaginary connecting line lies.
  • FIG. 2 shows a second part of the machine in a further schematic side view, namely a device according to the invention for sealing and/or shrinking outer wrappings of the packs,
  • FIG. 3 shows detail III of the device for sealing and/or shrinking from FIG. 2,
  • Fig. 4 is a view corresponding to Fig. 3, but without showing side heating elements
  • FIG. 5 shows a section through the device for sealing and/or shrinking along the section plane V-V in FIG. 3,
  • FIG. 6 shows a section through the device for sealing and/or shrinking along the section plane Vl-Vl in FIG. 3,
  • FIG. 7 is a view analogous to FIG. 6 in a different movement state of the device
  • FIG. 9 is a view analogous to FIG. 8 in a different movement state of the device.
  • FIG. 11 is a view analogous to FIG. 10 in a different movement state of the device for sealing and/or shrinking
  • FIG. 12 shows a detail of the device for sealing and/or shrinking from the illustration according to FIG. 6, 13 is a view of the detail according to FIG. 12 from the viewing direction XIII in FIG.
  • Fig. 14 shows a section XIV from Fig. 12 in an enlarged view.
  • the invention is concerned with the handling of packs 10 for cigarette industry products, such as cigarettes. 1 and 2 show parts of a packaging machine for such packs 10. Shown here are individual steps that follow the actual production of the packs 10. To do this as follows:
  • the packs 10 are transferred to a storage belt 11 by means of a feed conveyor and in this way to a transfer station 12.
  • the accumulated packs 10 are then transferred from the transfer station 12 to a separating station 13 and are brought at a distance from one another and thus separated.
  • the packs 10 are transferred to a conveyor 15 after being separated and transported along a conveyor route 16.
  • the packs 10 are held between two holding means 17 of the conveyor 15 during transport along the conveyor route 16.
  • a device 18 for attaching print media is arranged, which serves to attach print media to a side surface of the packs 10.
  • the packs 10 held by the holding means 17 are rotated during transport, namely with the help of a stationary guide.
  • a second turning wheel 19 is arranged, which serves to remove the packs 10 from the conveyor 15 and to transport them to a transport 20.
  • Sensors 21 serve to detect the presence of the packs 10 between the holding means 17.
  • Sensors 22 are used to determine the edges of the packs 10.
  • the device 18 is controlled via the detected edges.
  • Cameras 23 are used to check whether the packs 10 may already be there Have print carriers, whereas cameras 24 are used to check the correct position of the print carrier on the pack.
  • the packs 10 are wrapped in a blank for an outer wrapping.
  • a corresponding material web 26 for the outer covering is guided over deflection rollers 27.
  • a tear thread 29 is unrolled from a bobbin 28 and attached to the material web 26.
  • the tear thread 29 and the material web 26 with the tear thread 29 attached to it are each guided over loop boxes 30, 31 as buffers.
  • an ultrasonic sensor 32 is arranged, which serves to control the formation of the loop in the loop box 31.
  • the material web 26 enters a so-called film apparatus 35 with feed rollers 36 for conveying the material web 26, U-knife 37 and thread position sensor 38.
  • the U-knife 37 is used to form a U-cut for one Gripping tip of the tear thread 29, whereas the thread position sensor 38 is used to control the position of the tear thread 29 on the material web 26.
  • the material web 26 is held ready in an upright plane in the area of a suction box 40 via suction belts 39 and separated by means of a cutting unit 41.
  • the packs 10 fed via an inlet belt 42 are pushed into a sealing turret 44 using a pusher 43, taking the separated blank of the material web 26 with it.
  • the blanks are placed around the packs 10 with the assistance of an underfolder 45 and sealed in several sealing stations 46 and handed over to another inlet belt 47.
  • the representation of the inlet belt 47 is continued in Fig. 2. Accordingly, the packs 10 are transported with the inlet belt 47 into the area of a device 64 according to the invention for further sealing and/or shrinking of the outer wrappings of the packs 10.
  • the device 64 includes, among other things, a vertical conveyor 48, which serves to transport the packs 10 in two tracks onto a higher, stationary conveyor track 52, in the present case designed as a track plate.
  • a staple heater 49 is provided for the top and bottom sides or opposite end faces of the packs 10, as well as heating cassettes 50.
  • packs 10 can be discharged via an ejection chute 51.
  • the packs 10 are first transported with a first conveyor 53 (upper belt), and then downstream, after they have been transferred to a transfer area 96, with a second conveyor 54 (lower belt).
  • opposite heating elements 56a of pairs of heating elements 56a of a side heater 56 which is designed as a sealing heater
  • the opposite end faces or top and bottom sides of the packs 10 are supplied with heat or heated for sealing folding flaps of the outer wrapping.
  • first and second shrink heater 57 and 58 With a first and second shrink heater 57 and 58 with heating elements 57a arranged below the conveyor track 52 or with heating elements 58a arranged above the conveyor track 52 and with these each at a distance from each other, in particular plate-shaped stop elements 57b and 58b, on which the packs 10 during of the application of heat, the large side surfaces of the packs 10 are heated or applied with heat to shrink these sides of the outer casing.
  • the first and/or second heater 57 or 58 could also be a sealing heater (i.e. a heater that fuses foil flaps together) or a stapling heater (i.e. a heater that attaches foil areas to the respective adjacent pack before sealing). inside) page).
  • the side heater 56 does not have to be designed as a sealing heater, but can also be a shrink heater or a staple heater. Various constellations are conceivable. Equally, it does not matter which specific sides of the packs 10 are exposed to the heat of the respective heating element 56a, 57a or 58a.
  • the packs 10 are transported by means of a belt or belt conveyor 59.
  • a belt or belt conveyor 59 In the area of an ejection station 60, several ejectors 61 are provided in order to transport any defective packages 10 into an ejection chute 62.
  • the packs 10 that have not been separated out reach a subsequent push-off belt or push-off belt 63, which can lead to a cartoner, for example.
  • Both the heating elements 57a, 58a of the two shrink heaters 57 and 58 as well as the heating elements 56a - side heating elements - of the side heating 56 are each between a heat transfer position during operation of the device 64 or during operation of the packaging machine, of which the device 64 is part. in which they each rest against the respective pack 10 and transfer heat to the respective side of the outer covering of the pack 10, and a starting position in which they are each spaced from the pack 10, moved back and forth in cycles.
  • the device 64 can be adapted in a special way to different formats or dimensions of the packs 10.
  • packs 10 of different lengths could be handled in the device 64, for example before and after an adjustment of the heating elements 56a of each pair of heating elements 56a, i.e. packs 10 with different longitudinal dimensions or longitudinal extension (perpendicular to the pack end faces mentioned above).
  • 64 packs 10 of different transverse dimensions (height) could be handled in the device, i.e. packs 10 with different transverse dimensions or transverse extension (perpendicular to the two large sides that are acted upon by the shrink heaters 57 and 58, respectively).
  • these organs/elements are each arranged on a movable support part 71 of the device 64, in this case a movable support plate, which is movably attached to a stationary support part 72 of the device 64, in this case a machine frame.
  • the fastening is designed to be releasable (here by means of screws which extend in the adjustment direction (vertically aligned) elongated holes in the movable support part 71 and are fixed by nuts), so that the position of the movable support part 71 relative to the stationary support part 72 can be changed is.
  • FIGS. 11 and 10 In order to adjust the positions of all of the components arranged on the movable support part 71, only the fastening of the movable support part 71 on the stationary support part 72 must then be loosened and fixed again in a new relative position (compare FIGS. 11 and 10, in which in FIG. 11 Packs 10 with a larger transverse dimension are handled compared to the packs 10 of FIG. 10 and the movable support part 71 was moved upwards accordingly).
  • the device 64 has a (not absolutely necessary) adjusting device 73, in the present case an adjusting lifting device, with which such an adjustment can be carried out in a simple manner implementable is.
  • the adjusting device 73 comprises, for example, a spindle 74, which is mounted or fastened on the one hand on the stationary support part 72 and on the other hand on the movable support part 71, and whose rotations (for example caused by hand) cause the movable support part 71 to move upwards or if necessary, effect downwards.
  • stops 97 are also provided for the movable support part 71 in order to define a possible maximum adjustment position, here the lowest.
  • the adjustments of the movable support part 71 shown as examples in FIGS. 10 and 11 cause the stop element 57b of the first shrink heater 57, which is located in the area of the first conveyor 53, to be moved (upwards), so that the distance of the stop element increases 57b of the opposite heating elements 57a (based on their respective heat transfer position) can be enlarged in accordance with the larger transverse dimensions of the packs 10 from FIG. 11 and accordingly the packs 10 with the larger transverse dimensions can be properly heated.
  • the adjustments of the movable support part 71 cause the respective heat transfer positions of the respective heating elements 58a from FIG. 10 to be changed accordingly (moved upwards). , and as a result the distance between the respective heating element 58a in its respective heat transfer position and the respective opposite stop element 58b (here formed by the conveyor track 52) - while maintaining the working stroke of the respective heating element 58a - is increased.
  • each heating element 58a is connected to the movable support part 71 via the coupling gear 70.
  • a pull rod 76 which is operatively connected to the coupling gear 70 and is arranged or mounted on the movable support part 71 and is part of a lifting device 77 which also has a hand crank 103, is also mounted on the movable support part 71.
  • Each heating element 58a can be used with the lifting device 77 For maintenance purposes, for example to remove a bad packing 10 located below the respective heating element 58a, from its heat transfer position, see FIG. 8, into a maintenance position, see FIG. 9.
  • the heating elements 58a (just like the heating elements 57a) also each have a heating plate 107 which acts on the respective side of the pack, the angular position of which can be changed individually relative to the conveyor track 52 or to the respective side of the pack by means of adjusting screws 108, in the present case by actuating adjusting screws 108, cf. Fig. 12.
  • the first conveyor 53 is also mounted or attached to the movable support part 71 and is also moved (upwards) during the aforementioned adjustment of the relative position of the movable support part 71. This is in order to be able to promote the packs 10 with larger transverse dimensions from Figure 11.
  • the first conveyor 53 like the second conveyor 54, is designed as a belt or belt conveyor which, by means of drivers 75, moves the individual packs 10 along the stationary conveyor track 52, namely in the present case attached to the stationary support part 72, with sliding support thereon .
  • the (revolving) belt or belt of the first conveyor 53 moves above the conveying level, the belt/belt of the second conveyor 54 moves below it.
  • the distance between the lower run of the first conveyor 53 and the driver 75 of the same to the stationary conveyor track 52 can then be adjusted to the respective transverse dimension or height of the respective packs 10, see also FIGS. 10 and 11.
  • the first conveyor 53 has a support arm 99 around which its belt/belt together with the drivers 75 rotates.
  • This support arm 99 is pivotally mounted on the movable support part 71, so that it can be pivoted by an operator (in the present case upwards) from the normal conveying position into a maintenance position shown with dashed lines in FIG
  • the first conveyor 53 and the conveyor track 52 can be made accessible or removed in a simple manner.
  • the storage of the first conveyor 53 on the movable support part 71 includes a guide part 101 (ball head) of the first conveyor 53, which is in a curved guide groove 102 of the movable support part 71 is stored and guided.
  • a clamping lever 100 that otherwise fixes it must first be released.
  • the coupling gear 68 has pivoting levers 78, with each heating element 58a of each pair of opposing heating elements 56a being secured in a rotationally fixed manner on its own pivoting lever 78.
  • Each pivot lever 78 can be pivoted cyclically about a pivot axis 79 from a starting position in which the heating element 56a attached to it is in its starting position remote from the pack 10 to which heat is to be applied, into an end position in which the respective heating element 56a is in its heat transfer position, see Fig. 8.
  • each pivot lever 78 is attached to one of two carriages 80 - namely each rotatably mounted on a support piece 82 of the respective carriage 80 -, the carriages 80 being on a common one , on the stationary support part 72 mounted axle 81 to change the distance between them are mounted in a linearly movable manner.
  • the coupling gear 68 further has a rocker arm 84, the pivot axis 106 of which is arranged between the two carriages 80 and which is coupled to the connecting rod 67, and two coupling members 85, each of which is rotatably mounted on the rocker arm 84 on the one hand and rotatable on one each on the other hand the pivot lever 78.
  • one of the two carriages 80 mentioned above also serves as a carrier for the servomotor 65 or the servomotor 65 is attached to the correspondingly designed carriage 80, so that it moves accordingly when the carriage 80 moves.
  • an adjusting device 83 having an operable handwheel 98, cf in the present case synchronously, reducing their distance towards one another or increasing their distance from one another, which leads to a respective different heat transfer position of the respective heating element 56a, namely while maintaining the respective working stroke of the heating elements 56a, cf. Fig. 6 and Fig. 7.
  • the coupling gear 68 for driving the second shrink heater 58 is operatively connected to the coupling gear 70 for driving the side heating 56, for example via a transmission lever 104 and a pivot lever 105 coupled to or attached to the pivot axis 106, so that the drive movements of the servo motor 65 be transferred to the coupling gear 68 in this way.
  • the pivot lever 105 In order to prevent the heating elements 58a of the second shrink heater 58 from being moved when the position of the carriage 80 is adjusted due to the coupling of the coupling gears 68 and 70, the pivot lever 105 must first be released from the pivot axis 106. The same applies to a corresponding pivot lever of the coupling gear 69 of the first shrink heater 57, which is also coupled to the pivot axis 106.
  • the side heater 56 in the present case has six pairs of opposing heating elements 56a. On each of the Three heating elements 56a can therefore act one after the other on both end faces of the packs 10, since the packs 10 are conveyed to the conveyor track 52 in two lanes.
  • heating elements 56a acting on a respective pack 10 Due to this plurality of heating elements 56a acting on a respective pack 10, it is conceivable to cover different contours and/or temperature ranges. For example, individual heating elements 56a could each have different temperatures, so that not only sealing could take place through the side heating 56, but also shrinking and/or stapling, for example.
  • the heating elements 56a in the present case comprise a base body 109, a heating cartridge 110, a power supply 111, a temperature sensor 112 and a temperature limiter 113, see also FIGS. 13 and 14.
  • the temperature limiter 113 serves as an emergency shutdown a heating system error, for example to switch off the heating before the cardboard/paper reaches its ignition temperature.
  • the distances between the heating surface 114, the temperature sensor 112 and the heating cartridge 110 are approximately identical, see Fig. 14. This ensures that the temperature level at the temperature sensor is approximately the same as that at the heating surface 114. This minimizes control fluctuations in the temperature on the heating surface and achieves a uniform sealing/shrinking result.
  • first and second conveyors 53, 54 are driven together:
  • the second conveyor 54 is driven directly by a servo motor 86, the motor shaft of which is coupled to a drive wheel 87, which directly drives the second Conveyor 54 or its conveyor belt or conveyor belt drives by being guided along the circumference of the drive wheel 87 to transmit driving force.
  • a drive belt 88 is also guided along the drive wheel 87, which transmits the driving force of the drive wheel 87 to the first conveyor 53, namely to a deflection wheel 89 of the first conveyor 53, which drives the first conveyor 53 or its conveyor belt, along its conveyor belt the deflection wheel 89 is guided.
  • the drive belt 88 is further guided along two rollers 90, which are each rotatably mounted on roller bearings 91 and 92, which can be pivoted about pivot axes 91a and 92a and are fastened to the stationary support part 72 and are in the present case designed as flange bearings, in such a way that the axes of rotation of the rollers 90 are positioned symmetrically on both sides of an imaginary connecting line running through the axis of rotation of the drive wheel 87 and through the axis of rotation of the deflection wheel 89.
  • roller bearings 91 and 92 are coupled to one another via a connecting rod 94.
  • the bearing of the rollers 90 on the pivotable roller bearings 91, 92 and the pivotable mounting of the long rollers 91, 92 on the stationary support part 72 are carried out in such a way that when the position of the deflection wheel 89 is changed by an adjustment device 73 of the device 64, Movement of the movable support part 71 parallel to the imaginary connecting line by a predetermined distance of length X, the axes of rotation of the rollers 90 are each moved by a distance X/2 (in the adjustment direction). Specifically, due to the movement of the movable support part 71 in the adjustment direction, the roller bearings 92 are each pivoted about their pivot axes 91a and 92a, as a result of which the rollers 90 are moved in the manner described.
  • the two conveyors 53, 54 directly adjoin one another in the conveying direction of the packs 10, with the movements of the drivers 75 of the conveyors 53, 54 within the conveying plane being synchronized in such a way that the packs 10 move into the corresponding ones in the transfer area 96 with the cooperation of the drivers 75 Transfer phases are transferred from the first conveyor 53 to the second conveyor 54.
  • the movable support part 71 can then be moved by the adjusting device 73 relative to the stationary support part 72 (in particular when the conveyors 53, 54 are at a standstill) in such a way that the conveyor belt or conveyor belt of the first conveyor 53 arranged on it is moved with it ( perpendicular to the conveyor plane), that - based on their positions in the conveyor plane - the respective current relative positions of the drivers 75 of the two conveyors 53, 54 to one another remain unchanged during the adjustment, so that no resynchronization of the movements of the drivers 75 is required afterwards.
  • the packs 10 are ejected after the second conveyor 54 in the area of the ejection station 60.
  • the packs 10 will, see above, be conveyed through the device 64 in steps of two due to the two-lane feed. Steps of one or three are also conceivable (depending on the vertical conveyor used).
  • the ejection station 60 includes the several ones already mentioned Ejectors 61, which can each be triggered individually. These ejectors 61 each include a plunger 115 and a compressed air cylinder 116 driving it. By means of the plunger 115, bad packages 10 are pushed into the ejection shaft 62, see FIG. 2. The number of package ejections can be selected according to the number of steps. If the step is only one pack of 10, only one pack of 10 will be ejected. If the increment is three packs 10, up to three packs 10 are ejected at the same time, etc.
  • Roller bearing a pivot axis Roller bearing a pivot axis connecting rod
  • Handwheel adjustment device support arm 0 clamping lever 1 guide part conveyor 2 guide groove

Abstract

La présente invention concerne un dispositif permettant de sceller et/ou de contracter des enveloppes extérieures constituées d'un film pouvant être scellé et/ou rétracté, de préférence d'emballages (10) parallélépipédiques, en particulier d'emballages (10) destinés à des produits à fumer de l'industrie du tabac, ledit dispositif comprenant au moins un élément chauffant (56a, 57a, 58a), qui peut être déplacé en va-et-vient entre une position de départ et une position de transfert de chaleur, ainsi qu'au moins un convoyeur (53, 54) au moyen duquel les emballages (10) peuvent être transportés conjointement avec des enveloppes extérieures semi-finies dans chaque cas dans une position de traitement prédéfinie ou en direction d'une position de traitement prédéfinie, dans laquelle l'enveloppe extérieure de l'emballage (10) respectif peut être soumise à l'action de chaleur, dans la position de transfert de chaleur de l'élément chauffant (56a, 57a, 58a), par appui dudit élément chauffant sur l'enveloppe extérieure, en particulier de manière à sceller et/ou à rétracter l'enveloppe extérieure. A cet effet, la position de transfert de chaleur de l'élément chauffant (56a, 57a, 58a) et/ou la position du convoyeur peuvent être modifiées de manière à adapter le dispositif à des emballages (10) de différentes dimensions.
PCT/EP2023/055708 2022-03-11 2023-03-07 Dispositif pour sceller et/ou rétracter des enveloppes extérieures d'emballages WO2023170044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022105780.1A DE102022105780A1 (de) 2022-03-11 2022-03-11 Vorrichtung zum Siegeln und/oder Schrumpfen von Außenumhüllungen von Packungen
DE102022105780.1 2022-03-11

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WO2023170044A1 true WO2023170044A1 (fr) 2023-09-14

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511405B1 (en) * 1999-09-15 2003-01-28 Focke & Co (Gmbh & Co) Process and apparatus for producing cigarette packs
EP2019783A1 (fr) * 2006-05-23 2009-02-04 Focke & Co. (GmbH & Co. KG) Procédé et dispositif de fabrication de paquets de cigarettes
US20150232218A1 (en) * 2011-12-23 2015-08-20 Focke & Co. (Gmbh & Co. Kg) Method and device for producing packs having shrink film

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
IT1285569B1 (it) 1996-02-28 1998-06-18 Gd Spa Metodo e macchina per il sovraincarto di prodotti con fogli di materiale termoplastico
KR200299344Y1 (ko) 2002-08-23 2003-01-03 한국담배인삼공사 열수축 밀착포장 장치
JP2004244081A (ja) 2003-02-17 2004-09-02 Toyo Jidoki Co Ltd 袋のシール装置
CN104691863B (zh) 2015-02-13 2016-09-07 湖南中烟工业有限责任公司 一种烟包透明热收缩膜美容装置及其应用

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511405B1 (en) * 1999-09-15 2003-01-28 Focke & Co (Gmbh & Co) Process and apparatus for producing cigarette packs
EP2019783A1 (fr) * 2006-05-23 2009-02-04 Focke & Co. (GmbH & Co. KG) Procédé et dispositif de fabrication de paquets de cigarettes
US20150232218A1 (en) * 2011-12-23 2015-08-20 Focke & Co. (Gmbh & Co. Kg) Method and device for producing packs having shrink film

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