EP2626305B1 - Verpackungsmaschine und -Verfahren zum Herstellen von steifen Packungen mit mindestens zwei Behältern, von denen einer innerhalb des anderen angeordnet ist - Google Patents

Verpackungsmaschine und -Verfahren zum Herstellen von steifen Packungen mit mindestens zwei Behältern, von denen einer innerhalb des anderen angeordnet ist Download PDF

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Publication number
EP2626305B1
EP2626305B1 EP13154718.4A EP13154718A EP2626305B1 EP 2626305 B1 EP2626305 B1 EP 2626305B1 EP 13154718 A EP13154718 A EP 13154718A EP 2626305 B1 EP2626305 B1 EP 2626305B1
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EP
European Patent Office
Prior art keywords
inner containers
feed line
containers
conveyor
compensating
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.)
Not-in-force
Application number
EP13154718.4A
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English (en)
French (fr)
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EP2626305A1 (de
Inventor
Maurizio Zanotti
Matteo Degli Esposti
Luca Cavazza
Michele Squarzoni
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GD SpA
Original Assignee
GD SpA
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Publication date
Priority claimed from ITBO20120062 external-priority patent/ITBO20120062A1/it
Application filed by GD SpA filed Critical GD SpA
Priority to PL13154718T priority Critical patent/PL2626305T3/pl
Publication of EP2626305A1 publication Critical patent/EP2626305A1/de
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Publication of EP2626305B1 publication Critical patent/EP2626305B1/de
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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
    • 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
    • B65B19/28—Control devices for cigarette or cigar packaging machines
    • 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
    • B65B35/44—Arranging and feeding articles in groups by endless belts or chains
    • 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
    • B65B35/56—Orientating, i.e. changing the attitude of, articles, e.g. of non-uniform cross-section
    • B65B35/58—Turning articles by positively-acting means, e.g. to present labelled portions in uppermost position

Definitions

  • the present invention relates to a packing machine and method for producing rigid packets, each comprising at least two containers, one inside the other.
  • the present invention finds advantageous application in the manufacture of rigid cigarette packets, to which the following description will make explicit reference, but without any loss of generality.
  • the rigid cigarette packet consists of the so-called "rigid packet with hinged lid", which comprises a set of cigarettes wrapped in foil and a single container with a hinged lid that is made by folding a single blank around the set of cigarettes.
  • patent application WO2006021581A1 describes a rigid cigarette packet with slide opening by means of a rotational movement
  • patent application WO2007031484A1 describes a rigid cigarette packet with slide opening by means of a translatory movement
  • patent applications IT2000BO00245 , IT2006BO00020 and IT2006BO00420 describe a rigid cigarette packet with book-like opening (in this case, at least two inner containers are provided and are held together by the outer container)
  • patent application EP2017198A1 describes a rigid cigarette packet with swing opening (in this case, at least two inner containers are provided and are held together by the outer container).
  • the only common characteristic of these new-generation rigid cigarette packets is that it is necessary to use two different blanks that must be folded in sequence (i.e. first of all, the inner blank must be folded around the set of cigarettes and then, after completing the folding of the inner blank, the outer blank is folded around the previously folded inner blank).
  • the packing machines used to make the above-described types of new-generation rigid cigarette packets are equipped with a first packing unit on which the inner blanks are folded around the inner packages (each of which is formed by a foil-wrapped set of cigarettes) to form the inner containers, a second packing unit on which the outer blanks are folded around the inner containers, and a transfer unit that receives the inner containers from the first packing unit and feeds the inner containers to the second packing unit.
  • WO 2013/001497 discloses a packing machine having all of the features of the pre-characterizing portion of claim 1 and a compensating conveyor according to the first feature of the characterizing portion of claim 1.
  • Patent application DE102007009251 represents the closest prior art in accordance with Article 54(2) EPC and discloses a packing machine and method for producing rigid packets, each comprising at least two containers, one inside the other, according to the pre-characterizing portion of the independent claims.
  • the object of the present invention is to provide a packing machine and method for producing rigid packets, each comprising at least two containers, one inside the other, this packing machine and method being devoid of the above-described drawbacks and, at the same time, simple and inexpensive to implement.
  • a packing machine and method for producing rigid packets each comprising at least two containers, one inside the other, are provided in accordance with that claimed in the appended claims.
  • reference numeral 1 indicates, in its entirety, a rigid cigarette packet with slide opening by means of a linear movement.
  • the packet 1 of cigarettes shown in Figure 1 comprises a wrapped group 2 of cigarettes, or rather a set of cigarettes wrapped in foil, and a rigid outer casing made of cardboard or similar, housing the wrapped group 2 and comprising, in turn, a rigid inner container 3, inside which the wrapped group 2 is directly positioned, and a rigid outer container 4, which houses the inner container 3 in a sliding manner to enable the inner container 3 to slide with respect to the outer container 4 with a linear movement between a closed position (not shown), in which the inner container 3 is completely inserted inside the outer container 4, and an open position (shown in Figure 1 ), in which the inner container 3 is partially extracted from the outer container 4 to provide a user with direct access to the wrapped group 2.
  • the containers 3 and 4 of the packet 1 of cigarettes shown in Figure 1 are respectively obtained from corresponding blanks 17 and 18, of known type and shown in Figures 5 and 7 , respectively.
  • FIG 2 partially shows a packaging line 14 that produces packets 1 of cigarettes of the above-described type and shown in Figure 1 .
  • the packaging line 14 comprises a cigarette packing machine 19 that produces the packets 1 of cigarettes, a cellophane wrapping machine 15 that applies a transparent plastic wrapper around each packet 1 of cigarettes, and a feed channel 16 that transfers the packets 1 of cigarettes from the packing machine 19 to the cellophane wrapping machine 15.
  • the packing machine 19 comprises a packing unit 20 that produces inner containers 3 by folding blanks 17 around corresponding wrapped groups 2 of cigarettes, a packing unit 21 that produces the outer containers 4 by folding blanks 18 around corresponding inner containers 3, and a transfer unit 22 that receives the inner containers 3 from the packing unit 20 as input at an input station 23 and outputs the inner containers 3 to the packing unit 21 at an output station 24.
  • the packing unit 20 comprises a conveyor 25 for forming groups 26 of cigarettes that is equipped with a plurality of pockets, each of which receives a corresponding group 26 of cigarettes from the outlet of the hopper 13.
  • the packing unit 20 comprises a packing conveyor 27 equipped with two straight packing lines, parallel to each other and side by side, on which wrapping sheets 28 cut from a continuous strip are fed by a feed device 12 and then folded around groups 26 of cigarettes to form wrapped groups 2 of cigarettes.
  • the packing unit 20 comprises a transfer wheel 29, which receives wrapped groups 2 of cigarettes from the packing conveyor 27, and a packing wheel 30, which receives the wrapped groups 2 of cigarettes from the transfer wheel 29 and blanks 17 from a feed device 11 and then folds the blanks 17 around the wrapped groups 2 of cigarettes to form the inner containers 3.
  • the packing unit 20 comprises a drying conveyor 31, which is equipped with two straight drying lines, parallel to each other and side by side, which receive inner containers 3 from the packing wheel 30 and feed the inner containers 3 to the input station 23 of the transfer unit 22.
  • Each drying line of the drying conveyor 31 is formed by fixed walls that define a "tunnel" along which the inner containers 3 are pushed: each time a "new" inner container 3 is added at the tail end by a pusher at the entrance of the drying conveyor 31, the "new” inner container 3 pushes the queue of all the other inner containers 3 already present on the drying conveyor 31, causing expulsion of the inner container 3 located at the head of the queue from the drying conveyor 31, which is then "taken” by the transfer unit 22.
  • a rejection device 10 is connected to the drying conveyor 31 for removing defective inner containers 3 from the drying conveyor 31.
  • the transfer unit 22 transfers the inner containers 3 from the input station 23 to the output station 24 and orients the inner containers 3 (and, in the embodiment shown in Figures 13 and 14 , also a group of inner containers 3) at four handling stations 32-35, arranged in series between the input station 23 and the output station 24.
  • the transfer unit 22 comprises four handling stations 32-35 that can be individually activated or deactivated (completely or even partially) depending on the desired orientation operations and/or grouping of the inner containers 3. In other words, only part of the four handling stations 32-35 can be activated (and therefore the remaining part of the four handling stations 32-35 is deactivated) to perform all and only the desired operations of orientation and/or grouping of the inner containers 3.
  • only handling stations 33 and 34 are active (i.e. effectively perform an operation on the inner containers 3), while the other handling stations 32 and 35 are deactivated (i.e. do not perform any operation on the inner containers 3).
  • the packing unit 21 comprises a packing wheel 36, which receives inner containers 3 from the output station 24 of the transfer unit 22 and blanks 18 from a feed device 9 and then folds the blanks 18 around the inner containers 3 to form the outer containers 4 and so complete manufacture of the packets 1 of cigarettes.
  • the packing unit 21 comprises a drying conveyor 37, which is equipped with two straight drying lines, parallel to each other and side by side, which receive packets 1 of cigarettes from the packing wheel 36 and feed the packets 1 of cigarettes to an output station 38 of the packing machine 19. In the output station 38 of the packing machine 19, the packets 1 of cigarettes are passed to the feed channel 16 for being fed to the cellophane wrapping machine 15.
  • Each drying line of the drying conveyor 37 is formed by fixed walls that define a "tunnel" along which the packets 1 of cigarettes are pushed: each time a "new" packet 1 of cigarettes is added at the tail end by a pusher at the entrance of the drying conveyor 37, the "new" packet 1 of cigarettes pushes the queue of all the other packets 1 of cigarettes already present on the drying conveyor 37, causing expulsion of the packet 1 of cigarettes located at the head of the queue from the drying conveyor 37, which is then "taken" by the feed channel 16.
  • the packing unit 21 is entirely similar to the end portion of the packing unit 20 shown in Figure 5 ; the evident similarities between the two packing wheels 30 and 36, between the drying conveyors 31 and 37 and between the feed devices for the blanks 17 and 18 should be noted. Thanks to this similarity, it is possible to simplify the manufacture of the two packing units 20 and 21, as many parts are the same or at least very similar.
  • the transfer unit 22 comprises two horizontal feed lines, parallel to each other and side by side (in particular, arranged vertically, one above the other), each of which preferably feeds a succession of inner containers 3 along a straight feed path P, which extends between the input station 23 and the output station 24, with a stepwise movement (i.e. a movement that cyclically alternates between a motion step and a stationary step).
  • Each feed line comprises two belt conveyors 39 and 40, which are arranged in series arranged and separated from each other by the handling station 34, each of which comprises a belt and a plurality of partitions that extend perpendicular from the belt to define respective seats 41 (shown in Figure 9 ) for the inner containers 3.
  • the inner containers 3 rest on (and therefore are supported from below by) the belt of the belt conveyor 39; whereas the upper belt conveyor 39 comprises a static supporting surface (not shown) on which the inner containers 3 rest and slide (and are therefore supported by it from below) while they are pushed along the feed path P.
  • Each belt conveyor 40 comprises a static supporting surface (not shown) on which the inner containers 3 rest and slide (and are therefore supported by it from below) while they are pushed along the feed path P.
  • the handling station 35 comprises a group-forming device 63 positioned crosswise to the two feed lines and which groups together an inner container 3 of the upper feed line and an inner container 3 of the lower feed line by moving one inner container 3 in a direction perpendicular to the two feed paths P, to move the inner container 3 from the upper feed line to the lower feed line.
  • the group-forming device 63 When the group-forming device 63 is in operation, downstream from the group-forming device 63, the lower feed line feeds a succession of groups, each composed of two inner containers 3, to output station 24, while again downstream from the group-forming device 63, the upper feed line does not feed any inner container 3 to the output station 24 (as shown in Figures 13 and 14 ).
  • the embodiment in Figures 13 and 14 contemplates that in each packet 1 of cigarettes, the outer container 4 encloses a group composed of two inner containers 3, as shown in Figure 12 .
  • the transfer unit 22 comprises a pair of compensating conveyors 66, each of which is connected to a corresponding feed line at an interchange station, is perpendicular to the feed path P and contains a reserve of inner containers 3 (indicatively capable of holding approximately 20-30 inner containers 3).
  • Each compensating conveyor 66 advances in steps in an insertion direction D1 (shown in Figure 11 ) to transfer an inner container 3 from the reserve to the feed line and advances in steps in a pickup direction D2 (shown in Figure 11 ), opposite to the insertion direction D1, to transfer an inner container 3 from the feed line to the reserve.
  • Each compensating conveyor 66 is a belt conveyor and comprises a belt equipped with a plurality of partitions that extend perpendicular from the belt to define respective seats 67 for the inner containers 3.
  • the compensating conveyor 66 connected to the upper feed line is located "below” the inner containers 3 travelling along the feed path P and therefore the bottom of the inner containers 3 rests on the belt of the compensating conveyor 66; whereas the compensating conveyor 66 connected to the lower feed line is located “above” the inner containers 3 travelling along the feed path P and therefore the bottom of the inner containers 3 rests on a static supporting surface (not shown), on which they slide when moving.
  • Each seat 67 of a compensating conveyor 66 is positioned perpendicular to the feed path P and is open on two sides so that inner containers 3 can pass right through it when the compensating conveyor 66 is stationary.
  • the transfer unit 22 comprises a collection bin 68 for inner containers 3 located beneath the compensating conveyors 66 at a first end of the compensating conveyors 66 close to the feed lines.
  • the transfer unit 22 comprises a collection bin 69 for inner containers 3 located beneath the compensating conveyors 66 at a second end of the compensating conveyors 66, opposite to the first end, and "at a distance" from the feed lines.
  • Collection bin 68 is normally used to collect inner containers 3 that must be rejected (i.e. removed from the feed paths P because they are defective) and have been identified by a control station (not shown) located upstream from the transfer unit 22; to reject an inner container 3 from the corresponding feed path P, when the inner container 3 to be rejected is in a seat 67 of a compensating conveyor 66, the compensating conveyor 66 is made to advance a step to push the inner container 3 out of the feed path P and consequently make the inner container 3 fall by gravity into the underlying collection bin 68.
  • the upper compensating conveyor 66 i.e.
  • the compensating conveyor 66 connected to the upper feed line could be equipped with an ejector device located near the collection bin 68 and able to "help" the inner containers 3 fall from the upper compensating conveyor 66 to the underlying collection bin 68. It is important to note that every time a compensating conveyor 66 advances a step to push an inner container 3 out of the feed path P and consequently make the inner container 3 fall by gravity into the underlying collection bin 68, at the same time, the compensating conveyor 66 adds a new inner container 3 to the feed path P that takes the place of the inner container 3 just rejected and comes from the corresponding reserve of inner containers 3 (obviously, unless the reserve of inner containers 3 is completely empty).
  • collection bin 68 could be divided into a reject zone, where rejected inner containers 3 are sent, and a sample zone, where small quantities (a few units) of inner containers 3 picked for sample-based quality control are sent.
  • collection bin 68 is normally fitted with a motorized movable partition, which is moved to direct the inner containers 3 that fall by gravity from the feed lines into either the reject zone or the sample zone.
  • Collection bin 69 is normally used to collect a number of samples of inner containers 3 (for example, the first 50 inner containers 3 produced at the beginning of a new production shift or after a change in format) to be used for sample-based quality control.
  • each compensating conveyor 66 is made to advance in the pickup direction D2 for a certain period of time in order to pick the desired inner containers 3 from the feed paths P and consequently make the inner containers 3 fall by gravity into the underlying collection bin 69.
  • the upper compensating conveyor 66 i.e. the compensating conveyor 66 connected to the upper feed line
  • the compensating conveyor 66 comprises a leading end sensor 75 located at a first end of the compensating conveyor 66, close to the feed line and able to detect (normally optically) the presence/absence of an inner container 3; in addition, the compensating conveyor 66 comprises a trailing end sensor 76 located at a second end of the compensating conveyor 66, opposite to the first end, and able to detect (normally optically) the presence/absence of an inner container 3.
  • the transfer unit 22 comprises a feed device 70 that is located at the output station 24 and feeds the inner containers 3 from each feed line to the packing unit 21.
  • the packing machine 19 comprises a control unit 74 (schematically shown in Figure 3 ) that controls the operation of all the parts of the packing machine 19.
  • the control unit 74 determines a first number N1 of inner containers 3 that constitute a first reserve of a first compensating conveyor 66, and determines a second number N2 of inner containers 3 that constitute a second reserve of a second compensating conveyor 66.
  • Calculating the numbers N1 and N2 of inner containers 3 is simple as, starting from the initial number of inner containers 3 when the packing machine 19 is started, it is sufficient to decrement this initial number by one unit every time an inner container 3 is taken from the reserve and increment this initial number by one unit every time an inner container 3 is added to the reserve.
  • the numbers N1 and N2 of inner containers 3 that constitute the reserves of the compensating conveyors 66 are counted whenever the packing machine 19 is restarted; in fact, when the packing machine 19 is stopped, an operator could manually change the number of inner containers 3 that constitute the reserves of the compensating conveyors 66.
  • the compensating conveyor 66 To count the number N1 or N2 of inner containers 3 constituting the reserve of each compensating conveyor 66, the compensating conveyor 66 is made to move in the pickup direction D2 until the trailing end sensor 76 detects the presence of an inner container 3 and is then made to move in the insertion direction D1 until the leading end sensor 75 detects the presence of an inner container 3; in this way, the control unit 74 determines precisely the "head” and the "tail” of the reserve and can therefore calculate the number N1 or N2 of inner containers 3 constituting the reserve in a simple manner.
  • each packet 1 of cigarettes comprises a single inner container 3 housed in the outer container 4, in the event of stoppage of the packing machine 19 due to stoppage of the cellophane wrapping machine 15 located downstream from the packing machine 19, the compensating conveyor 66 is completely filled with inner containers 3 by advancing a number of steps in the pickup direction D2.
  • the group-forming device 63 in the handling station 35 is consequently activated to group together an inner container 3 from the upper feed line and an inner container 3 from the lower feed line, by moving an inner container 3 in a direction perpendicular to the two feed paths P, to move the inner container 3 from the upper feed line to the lower feed line.
  • the lower feed line feeds a succession of groups, each composed of two inner containers 3, to the output station 24, while again downstream from the group-forming device 63, the upper feed line does not feed any inner container 3 to the output station 24.
  • the control unit 74 detects an empty seat 41, i.e. from which an inner container 3 has been rejected, on a first feed line (which can be the upper feed line or the lower feed line, indifferently).
  • a first feed line which can be the upper feed line or the lower feed line, indifferently.
  • the control unit 74 advances a first compensating conveyor 66 in the insertion direction D1 to insert a replacement inner container 3 previously stored on the first compensating conveyor 66 onto the first feed line, so that the two feed lines together supply the group-forming device 63 (i.e.
  • the control unit 74 advances a second compensating conveyor 66 in the pickup direction D2 to remove an inner container 3 from a second feed line and store it on the second compensating conveyor 66, so that the two feed lines together supply the group-forming device 63 (i.e. the packing unit 21) with two empty seats 41.
  • the choice of the action to perform depends on the filling level of the compensating conveyors 66 (i.e. on the numbers N1 and N2 of inner containers 3 that constitute the reserves) and is intended to try to keep (as far as possible) the compensating conveyors 66 in an intermediate situation of balance, neither too empty nor too full.
  • the packing unit 21 can receive a complete group composed of two superimposed inner containers 3 from the transfer unit 22 (and in this case, the packing unit 21 will form an outer container 4 by folding a blank 18 around the group of two inner containers 3), or the packing unit 21 can receive a "gap" from the transfer unit 22, i.e. the complete absence of inner containers 3 (and in this case, the packing unit 21 does not form any outer container 4 and also avoids feeding a blank 18 by temporarily blocking the feed device 9). Therefore, the packing unit 21 is able to optimally manage both the reception of a complete group composed of two superimposed inner containers 3, and the reception of a "gap", i.e. the complete absence of inner containers 3.
  • the packing unit 21 is unable to optimally manage the reception of just a single inner container 3 (i.e. an incomplete group composed of just one inner container 3), as the single inner container 3 must be surely rejected and also because it can give rise to blockage during the various manoeuvres, as it can assume “strange” positions due to "wobbling" inside a pocket intended for two superimposed inner containers 3.
  • the control unit 74 determines (as previously described) the first number N1 di inner containers 3 that constitute the first reserve of the first compensating conveyor 66 and determines the second number N2 of inner containers 3 that constitute the second reserve of the second compensating conveyor 66. Furthermore, the control unit 74 compares the first number N1 and second number N2 with a safety threshold WPL (indicatively, the safety threshold WPL is in the range between 3 and 7), and activates the compensating conveyors 66 to remove inner containers 3 from the feed lines when the first number N1 and/or second number N2 are/is below the safety threshold WPL and until the first number N1 and second number N2 are above the safety threshold WPL. In this way, under normal conditions it is guaranteed that the numbers N1 and N2 of inner containers 3 that constitute the reserves of the compensating conveyors 66 are always above the safety threshold WPL.
  • control unit 74 determines (as previously described) the first number N1 of inner containers 3 that constitute the first reserve of the first compensating conveyor 66 and determines the second number N2 of inner containers 3 that constitute the second reserve of the second compensating conveyor 66.
  • control unit 74 compares the first number N1 and second number N2 with an intermediate threshold LPD (indicatively, the intermediate threshold LPD is in the range between 14 and 20), and, by acting on the packing unit 20, temporarily stops (for example, for a number of inner containers 3 equal to the difference between the intermediate threshold LPD and the safety threshold WPL) the manufacture of inner containers 3 fed by the feed line connected to the compensating conveyor 66 when the number N1 or N2 of inner containers 3 constituting the reserve is above the intermediate threshold LPD.
  • intermediate threshold LPD is in the range between 14 and 20
  • control unit 74 acts on the two hoppers 13 (of the total four hoppers 13) of the packing unit 20, the groups 26 of cigarettes of which, once provided with wrapping sheet 28, are inserted on the feed line connected to the compensating conveyor 66 where the number N1 or N2 of inner containers 3 constituting the reserve is above the intermediate threshold LPD; the control unit 74 temporarily disables the two hoppers 13 of the packing unit 20 so as to create "gaps" (i.e. the absence of groups 26 of cigarettes) that arrive on the feed line connected to the compensating conveyor 66 where the number N1 or N2 of inner containers 3 constituting the reserve is above the intermediate threshold LPD (obviously, the feed device 12 is also temporarily stopped to not pointlessly feed wrapping sheets 28).
  • the compensating conveyor 66 can partially empty itself to fill these gaps and therefore the number N1 or N2 of inner containers 3 constituting the reserve returns to being abundantly below the intermediate threshold LPD (but always above the safety threshold WPL).
  • the control unit 74 determines (as previously described) the first number N1 of inner containers 3 that constitute the first reserve of the first compensating conveyor 66 and determines the second number N2 of inner containers 3 that constitute the second reserve of the second compensating conveyor 66. Furthermore, the control unit 74 compares the first number N1 and second number N2 with a warning threshold LRF and, by acting on the packing unit 20 (in particular on the rejection device 10 of the packing unit 20) and regardless of defects, causes a predetermined number (for example, 2-7) of rejects of the inner containers 3 fed by the feed line connected to the compensating conveyor 66 where the number N1 or N2 of inner containers 3 constituting the reserve is above the warning threshold LRF.
  • control unit 74 compares the first number N1 and second number N2 with a warning threshold LRF and, by acting on the compensating conveyor 66 where the number N1 or N2 of inner containers 3 constituting the reserve is above the warning threshold LRF and regardless of defects, causes a predetermined number (for example, 2-7) of inner containers 3 to be rejected from the feed line, with the rejected inner containers 3 being simultaneously replaced with the same number of inner containers 3 from the reserve.
  • a predetermined number for example, 2-7
  • the control unit 74 determines (as previously described) the first number N1 of inner containers 3 that constitute the first reserve of the first compensating conveyor 66 and determines the second number N2 of inner containers 3 that constitute the second reserve of the second compensating conveyor 66. Furthermore, the control unit 74 compares the first number N1 and second number N2 with an overflow threshold FLT and stops the packing machine 19 if the first number N1 and/or the second number N2 are above the overflow threshold FLT.
  • the above-described packing machine 19 has numerous advantages.

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Claims (21)

  1. Verpackungsmaschine (19) zur Herstellung steifer Packungen, von denen jede mindestens zwei Behältnisse (3, 4) aufweist, von denen eines innerhalb des anderen ist; wobei die Verpackungsmaschine (19) umfasst:
    eine erste Verpackungseinheit (20) zur Herstellung von inneren Behältnissen (3) durch Faltung innerer Zuschnitte (17) um entsprechende Gegenstände;
    eine zweite Verpackungseinheit (21) zur Herstellung äußerer Behältnisse (4) durch Faltung äußerer Zuschnitte (18) um entsprechende innere Behältnisse (3); und
    eine Transfereinheit (22), welche die inneren Behältnisse (3) von der ersten Verpackungseinheit (20) an einer Einführstation (23) aufnimmt und die inneren Behältnisse (3) längs einer Zuführbahn (P) und mittels einer Zuführlinie zur zweiten Verpackungseinheit (21) an eine Auslassstation (24) fördert;
    wobei die Verpackungsmaschine (19) dadurch gekennzeichnet ist, dass:
    die Transfereinheit (22) einen Kompensationsförderer (66) umfasst, welcher mit der Zuführlinie an einer Wechselstation verbunden ist, senkrecht zur Zuführbahn (P) ist, eine Reserve von inneren Behältnissen (3) enthalten kann, in eine Einführrichtung (D1) bewegbar ist, um ein inneres Behältnis (3) aus der Reserve zur Zuführlinie zu überführen, und in eine Aufnahmerichtung (D2) bewegbar ist, gegenüberliegend der Einführrichtung (D1), um ein inneres Behältnis (3) von der Zuführlinie zur Reserve zu überführen; und
    eine Kontrolleinheit (74) vorgesehen ist, welche die Anzahl (N1, N2) von inneren Behältnissen (3) zählt, welche die Reserve des Kompensationsförderers (66) bildet, wann immer die Verpackungsmaschine (19) wieder gestartet wird.
  2. Verpackungsmaschine (19) nach Anspruch 1, wobei der Kompensationsförderer (66) ein Bandförderer ist und ein erstes Band aufweist, welches mit einer Anzahl von ersten Abteilungen gerüstet ist, senkrecht zum ersten Band, um entsprechende erste Aufnahmen (67) für die inneren Behältnisse (3) zu bilden.
  3. Verpackungsmaschine (19) gemäß Anspruch 2, wobei die Zuführlinie mindestens einen Bandförderer (39; 40) umfasst, die mit einem zweiten Band und einer Anzahl von zweiten Abteilungen senkrecht zum zweiten Band ausgerüstet ist, um entsprechende zweite Aufnahmen (41) für die inneren Behältnisse (3) zu bilden.
  4. Verpackungsmaschine (19) gemäß Anspruch 3, wobei an der Wechselstation die erste Aufnahme (67) auf dem Kompensationsförderer (66) vollständig über eine zweite Aufnahme (41) auf der Zuführlinie überlagert ist, derart, dass an der Wechselstation ein inneres Behältnis (3) gleichzeitig innerhalb einer ersten Aufnahme (67) am Kompensationsförderer (66) und einer zweiten Aufnahme (41) an der Zuführlinie einhausbar ist.
  5. Verpackungsmaschine (19) nach Anspruch 2, 3 oder 4, wobei jede erste Aufnahme (67) auf dem Kompensationsförderer (66) senkrecht zur Zuführbahn (P) angeordnet ist und an zwei Seiten offen ist, so dass die inneren Behältnisse (3), die längs der Zuführbahn (P) gefördert werden, gerade hindurch passen, wenn der Kompensationsförderer (66) stationär ist.
  6. Verpackungsmaschine (19) nach einem der Ansprüche 1 bis 5, wobei der Kompensationsförderer (66) imstande ist, ein defektes inneres Behältnis (3) auszumustern und zwar durch Ausstoßen des defekten inneren Behältnisses (3) von der Zuführbahn (P) durch Vorrücken in einem Schritt in die Einführrichtung (D1), welche senkrecht zur Zuführbahn (P) ist.
  7. Verpackungsmaschine (19) nach Anspruch 6, wobei die Transfereinheit (22) einen ersten Sammelbehälter (68) für innere Behältnisse (3) aufweist, welcher unterhalb des Kompensationsförderers (66) an einem ersten Ende des Kompensationsförderers (66) nahe der Zuführlinie angeordnet ist.
  8. Verpackungsmaschine (19) nach einem der Ansprüche 1 bis 7, wobei die Transfereinheit (22) einen zweiten Sammelbehälter (69) für innere Behältnisse (3) aufweist, welcher unterhalb des Kompensationsförderers (66) an einem zweiten Ende des Kompensationsförderer (66) gegenüberliegend dem ersten Ende und in einer Distanz von der Zuführlinie angeordnet ist.
  9. Verpackungsmaschine (19) nach Anspruch 8, wobei der Kompensationsförderer (66) imstande ist, innere Proben-Behältnisse (3) im zweiten Sammelbehälter (69) durch Vorrücken einer Anzahl von Schritten in die Aufnahmerichtung (D2) zu sammeln.
  10. Verpackungsmaschine (19) nach einem der Ansprüche 1 bis 9, wobei im Falle eines Stopps der Verpackungsmaschine (19), der durch Stoppen einer stromabwärts der Verpackungsmaschine (19) gelegenen Umschlagmaschine verursacht ist, der Kompensationsförderer (66) vollständig mit inneren Behältnissen (3) durch Vorrücken einer Anzahl von Schritten in Aufnahmerichtung (D2) gefüllt wird.
  11. Verpackungsmaschine (19) nach einem der Ansprüche 1 bis 10, wobei:
    der Kompensationsförderer (66) einen vorderen Endsensor (75) aufweist, welcher an einem ersten Ende des Kompensationsförderers (66), benachbart der Zuführlinie, angeordnet ist und imstande ist, das Vorhandensein/die Abwesenheit eines inneren Behältnisses (3) zu prüfen;
    der Kompensationsförderer (66) einen hinteren Endsensor (76) aufweist, welcher an einem zweiten Ende des Kompensationsförderers (66) gegenüberliegend dem ersten Ende angeordnet ist und imstande ist, das Vorhandensein/die Abwesenheit eines inneren Behältnisses (3) zu prüfen; und
    die Anzahl (N1, N2) der inneren Behältnisse (3) zu zählen, die die Reserve des Kompensationsförderers (66) bilden, wobei der Kompensationsförderer (66) in Aufnahmerichtung (D2) bewegt wird bis der hintere Endsensor (76) das Vorhandensein eines inneren Behältnisses (3) ermittelt und in die Einführrichtung (D1) bewegt wird, bis der vordere Endsensor (75) das Vorhandensein eines inneren Behältnisses (3) ermittelt.
  12. Verpackungsmaschine (19) nach einem der Ansprüche 1 bis 11 und umfassend:
    zwei Zuführlinien, die zwei respektive Aufeinanderfolgen von inneren Behältnissen (3) längs zwei geradliniger Zuführbahnen (P) fördern, die zueinander parallel sind; sowie
    zwei Kompensationsförderer (66), von denen jeder mit einer entsprechenden Zuführlinie an einer Wechselstation verbunden ist.
  13. Verpackungsmaschine (19) nach Anspruch 12, wobei:
    die zwei Zuführlinien übereinander angeordnet sind und vertikal ausgerichtet sind;
    ein mit der unteren Zuführlinie verbundener Kompensationsförderer (66) unterhalb der inneren Behältnisse (3) angeordnet ist, welche längs der Zuführbahn (P) gefördert werden, und der Boden der inneren Behältnisse (3) infolgedessen auf dem Band des Kompensationsförderers (66) ruht; und
    der mit der oberen Zuführlinie verbundene Kompensationsförderer (66) über den inneren Behältnissen (3) angeordnet ist, welche längs der Zuführbahn (P) gefördert werden und der Boden der inneren Behältnisse (3) infolgedessen auf einer statischen Stützfläche ruht, auf welche diese bei Bewegung gleiten.
  14. Verpackungsmaschine (19) nach Anspruch 12 oder 13, wobei:
    jedes äußere Behältnis (4) eine Gruppe aus zwei inneren Behältnissen (3) aufweist;
    die Transfereinheit (22) eine Gruppen-formende Vorrichtung (63) aufweist, die kreuzweise zu den beiden Zuführlinien an einer entsprechenden Handling-Station (35) angeordnet ist und welche ein inneres Behältnis (3) aus einer ersten Zuführlinie und ein inneres Behältnis (3) aus einer zweiten Zuführlinie durch Bewegung eines inneren Behältnisses (3) in einer Richtung senkrecht zu den zwei Zuführbahnen (P) gruppiert, um das innere Behältnis (3) aus der ersten Zuführlinie zur zweiten Zuführlinie zu bewegen; und
    stromabwärts von der Gruppen-formenden Vorrichtung (63) die zweite Zuführlinie die Auslassstation (24) mit einer Aufeinanderfolge von Gruppen speist, welche jeweils zwei innere Behältnisse (3) umfassen, während stromabwärts der Gruppen-formenden Vorrichtung (63) die erste Zuführlinie keine inneren Behältnisse (3) an die Auslassstation (24) führt.
  15. Verpackungsmaschine (19) nach Anspruch 14, wobei die Kontrolleinheit (74):
    eine leere Aufnahme (41) ermittelt, d. h. aus der ein inneres Behältnis (3) ausgeworfen wurde, an einer ersten Zuführlinie;
    bei Ermittlung einer leeren Aufnahme (41) an der ersten Zuführlinie und wenn die leere Aufnahme (41) an der Wechselstation angeordnet ist, einen ersten Kompensationsförderer (66) betätigt, um ersatzweise ein inneres Behältnis (3) einzugeben, welches zuvor auf dem ersten Kompensationsförderer (66) auf der ersten Zuführlinie gespeichert ist, so dass die zwei Zuführlinien zusammen die Gruppen-formende Vorrichtung (63) mit zwei inneren Behältnissen (3) speisen; oder, alternativ,
    bei Ermittlung einer leeren Aufnahme (41) an der ersten Zuführlinie und wenn die leere Aufnahme (41) an der Wechselstation angeordnet ist, einen zweiten Kompensationsförderer (66) aktiviert, um ein inneres Behältnis (3) von einer zweiten Zuführlinie zu entfernen und das innere Behältnis (4) im zweiten Kompensationsförderer (66) zu speichern, so dass die zwei Zuführlinien zusammen die Gruppen-formende Vorrichtung (63) mit zwei leeren Aufnahmen (41) speisen.
  16. Verpackungsmaschine (19) nach Anspruch 15, wobei die Kontrolleinheit (74):
    eine erste Anzahl (N1) der inneren Behältnisse (3) bestimmt, die die erste Reserve des ersten Kompensationsförderers (66) bildet;
    eine zweite Anzahl (N2) der inneren Behältnisse (3) bestimmt, die die zweite Reserve des zweiten Kompensationsförderers (66) bildet;
    die erste Anzahl (N1) und die zweite Anzahl (N2) mit einem Sicherheitsschwellwert (WPL) vergleicht; und
    die Kompensationsförderer (66) betätigt, um die inneren Behältnisse (3) von den Zuführlinien zu entfernen, wenn die erste Anzahl (N1) und/oder die zweite Anzahl (N2) unterhalb des Sicherheitsschwellwerts (WPL) sind/ist und bis die erste Anzahl (N1) und die zweite Anzahl (N2) oberhalb des Sicherheitsschwellwerts (WPL) sind.
  17. Verpackungsmaschine (19) nach einem der Ansprüche 15 oder 16, wobei die Kontrolleinheit (74):
    eine erste Anzahl (N1) der inneren Behältnisse (3) bestimmt, die die erste Reserve des ersten Kompensationsförderers (66) bildet;
    eine zweite Anzahl (N2) der inneren Behältnisse (3) bestimmt, die die zweite Reserve des zweiten Kompensationsförderers (66) bildet;
    die erste Anzahl (N1) und die zweite Anzahl (N2) mit einem zwischenliegenden Schwellwert (LPD) vergleicht; und
    zeitweilig die Produktion, durch Einwirkung auf die erste Verpackungseinheit (20) der inneren Behältnisse (3) stoppt, die durch die Zuführlinie zugeführt sind, welche mit dem Kompensationsförderer (66) verbunden ist, auf dem die Anzahl (N1, N2) der inneren Behältnisse (3), die die Reserve bilden, oberhalb des zwischenliegenden Schwellwerts (LPD) ist.
  18. Verpackungsmaschine (19) nach Anspruch 15, 16 oder 17, wobei die Kontrolleinheit (74);
    eine erste Anzahl (N1) der inneren Behältnisse (3) bestimmt, welche die erste Reserve des ersten Kompensationsförderers (66) bildet;
    eine zweite Anzahl (N2) der inneren Behältnisse (3) bestimmt, welche die zweite Reserve des zweiten Kompensationsförderers (66) bildet;
    die erste Anzahl (N1) und die zweite Anzahl (N2) mit einem Warnschwellwert (LRF) vergleicht; und
    durch Einwirkung auf die erste Verpackungseinheit (20) und unabhängig von Defekten, die Zurückweisung einer vorbestimmten Anzahl von inneren Behältnissen (3) bedingt, die durch die Zuführlinie zugeführt sind, welche mit dem Kompensationsförderer (66) verbunden ist, auf dem die Anzahl (N1, N2) der inneren Behältnisse (3), welche die Reserve bildet, oberhalb des Warnschwellwerts (LRF) ist.
  19. Verpackungsmaschine (19) nach einem der Ansprüche 15 bis 17, wobei die Kontrolleinheit (74):
    eine erste Anzahl (N1) der inneren Behältnisse (3) ermittelt, welche die erste Reserve des ersten Kompensationsförderers (66) bildet;
    eine zweite Anzahl (N2) der inneren Behältnisse (3) ermittelt, welche die zweite Reserve des zweiten Kompensationsförderers (66) bildet;
    die erste Anzahl (N1) und die zweite Anzahl (N2) mit einem Warnschwellwert (LRF) vergleicht; und
    durch Einwirkung auf den Kompensationsförderer (66), bei dem die Anzahl (N1, N2) der inneren Behältnisse (3), welche die Reserve bilden, oberhalb des Warnschwellwerts (LRF) ist, und zwar unabhängig von Defekten, die Ausmusterung einer vorbestimmten Anzahl von inneren Behältnissen (3) aus der Zuführlinie veranlasst und gleichzeitig den Ersatz der ausgemusterten inneren Behältnisse (3) mit der selben Anzahl von inneren Behältnissen (3) aus der Reserve.
  20. Verpackungsmaschine (19) nach einem der Ansprüche 15 bis 19, wobei die Kontrolleinheit (74):
    eine erste Anzahl (N1) der inneren Behältnisse (3) ermittelt, welche die erste Reserve des ersten Kompensationsförderers (66) bildet;
    eine zweite Anzahl (N2) der inneren Behältnisse (3) ermittelt, welche die zweite Reserve des zweiten Kompensationsförderers (66) bildet;
    die erste Anzahl (N1) und die zweite Anzahl (N2) mit einem Overflow-Schwellwert (FLT) vergleicht; und
    die Verpackungsmaschine (19) stoppt, wenn die erste Anzahl (N1) und/oder die zweite Anzahl (N2) oberhalb des Overflow-Schwellwerts (FLT) sind/ist.
  21. Verpackungsverfahren zur Herstellung von steifen Packlagen, wobei jede wenigstens zwei Behältnisse (3, 4) umfasst, von denen eines innerhalb des anderen ist; wobei das Verpackungsverfahren die Schritte umfasst:
    Herstellung innerer Behältnisse (3) durch Falten von inneren Zuschnitten (17) um entsprechende Gegenstände auf einer ersten Verpackungseinheit (20);
    Herstellung äußerer Behälter (4) durch Falten äußerer Zuschnitte (18) um entsprechende innere Behältnisse (3) auf einer zweiten Verpackungseinheit (21);
    Überführung der inneren Behältnisse (3) mittels einer Transfereinheit (22), welche die inneren Behältnisse (3) aus der ersten Verpackungseinheit (20) an einer Eingabestation (23) aufnimmt und die inneren Behältnisse (3) längs einer Zuführbahn (P) fördert und zwar mittels einer Zuführlinie, zur zweiten Verpackungseinheit (21) an einer Ausgabestation (24);
    wobei das Verpackungsverfahren gekennzeichnet ist durch die weiteren Schritte:
    Verwendung eines Kompensationsförderers (66), welcher mit der Zuführlinie an einer Wechselstation verbunden ist, senkrecht zur Zuführbahn (P) ist, eine Reserve von inneren Behältnissen (3) aufweist, in einer Einführrichtung (D1) bewegbar ist, um ein inneres Behältnis (3) aus der Reserve zur Zuführlinie zu transferieren, und in eine Aufnahmerichtung (D2) bewegbar ist, gegenüberliegend der Einführrichtung (D1), um ein inneres Behältnis (3) aus der ersten Zuführlinie zur Reserve zu transferieren; und
    die Anzahl (N1, N2) der inneren Behältnisse (3) zu zählen, die die Reserve des Kompensationsförderers (66) bilden, wann immer die Verpackungsmaschine (19) neu gestartet wird.
EP13154718.4A 2012-02-09 2013-02-08 Verpackungsmaschine und -Verfahren zum Herstellen von steifen Packungen mit mindestens zwei Behältern, von denen einer innerhalb des anderen angeordnet ist Not-in-force EP2626305B1 (de)

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DE102012019909A1 (de) 2012-10-11 2014-04-17 Theegarten-Pactec Gmbh & Co. Kg Hochleistungs-Verpackungsverfahren zur Verpackung von, insbesondere kleinstückigen, Produkten und Hochleistungs-Verpackungseinrichtung, insbesondere zur Durchführung des Verfahrens
WO2015104057A1 (fr) * 2014-01-10 2015-07-16 Robert Bosch Gmbh Procede et dispositif d'emballage de produits alimentaires en portions individuelles
EP2894103B1 (de) * 2014-01-10 2016-09-07 Robert Bosch Gmbh Verfahren und vorrichtung zum verpacken von lebensmittelprodukten in einzelportionen
IT201800004908A1 (it) * 2018-04-27 2019-10-27 Apparato di trasporto e macchina comprendente tale apparato
CN110104277A (zh) * 2019-05-05 2019-08-09 贵州中烟工业有限责任公司 一种卷烟包装机烟条输送通道堵塞预防装置
IT201900019978A1 (it) * 2019-10-29 2021-04-29 Gd Spa Unità e metodo di raggruppamento per formare un gruppo composto da due incarti contenenti ciascuno un gruppo di articoli da fumo.
IT202000003958A1 (it) * 2020-02-26 2021-08-26 Gd Spa Macchina confezionatrice per la fabbricazione di un prodotto

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IT1161654B (it) * 1978-04-18 1987-03-18 Cir Spa Divisione Sasib Dispositivo per il rimpiazzo automatico dei pacchetti scartati da una linea di alimentazione regolare
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