This invention relates to apparatus and methods for packaging smoking articles such as cigars, cigarillos and cigarettes. In particular, the invention relates to apparatus and a method of forming a pack that comprises two packs joined together in a manner such that the two packs are movable relative to each other by rotation about one or more different edges.
An apparatus operable to connect two (or more) cigarette packs together is known. An apparatus for combining two packs in a hinged side-by-side relationship is the subject of the co-pending PCT patent application WO 05/054056, which application is incorporated herein by reference.
An example of a pack formed by the apparatus and method of assembly described herein is the subject of the co-pending PCT patent application PCT/GB2006/000245, which application is incorporated herein by reference.
Accordingly, the present invention provides a packaging apparatus comprising: one or more packing machines operable to assemble a plurality of assembled packs, a strap applicator operable to apply a strap to one face of all but one of the plurality of assembled packs; conveying means operable to guide the assembled packs such that the face of each assembled pack having the strap attached thereto abuts a face of another of the plurality of the assembled packs such that the strap is sandwiched between the abutting faces; and fixing means operable to fix the strap about the packs such that the packs are joined together.
Separate packing machines may assemble respectively each of the plurality of assembled packs. For example a first packing machine may be operable to assemble a first assembled pack and a second packing machine may be operable to pack a second assembled pack. The packing machines may be arranged in a parallel arrangement, wherein the apparatus further comprises adjusting means operable to adjust the orientation of at least one of the plurality of assembled packs into a position to abut face-to-face with an adjacent pack of the plurality of assembled packs. The reorientation of the packs may be such that each of the plurality of assembled packs is in the same orientation. The adjusting means may be an inverting unit, which is operable to flip at least one of the plurality of assembled packs over such that a leading edge of the pack on entry to the inverting unit becomes a trailing edge on exit from the inverting unit.
The adjusting means may be part of the conveying means whereby the at least one of the plurality of assembled packs is inverted through 180° in an arcuate feed path. The inversion of the assembled pack may occur under the action of gravity.
Alternatively, the first and second packing machines may be arranged in series, wherein one machine is placed upstream of the other in the production process. When the machines are arranged in series the first and second packs may be output from respective machines in the same orientation therefore there may not be a need to change the orientation of the packs. Therefore, the adjusting means may not be required.
Preferably, the fixing means is configured to receive the plurality of assembled packs, wherein adjacent packs are in a face-to-face arrangement with the strap sandwiched therebetween. The strap may be a single strap. Preferably, the strap is configured to separate into two or more separate straps. The size of the strap is such that it is wider than the abutting faces of the adjacent assembled packs such that an end region of each strap overhangs both edges of the abutting faces of the adjacent assembled packs. Suitably, for packs that are movable relative to each other by rotation about one edge, the strap may be attached to one or both of the abutting faces. Alternatively, the strap may be applied to an abutting faces on one pack and to a side panel on the adjacent pack. Preferably, for packs that are arranged to move relative to each other by rotation about two or more edges, the overhanging end region comprises two or more separate sections, which are fixable by the fixing means to faces other than the abutting faces on the first and second assembled packs such that each strap is fixed to two adjacent packs, thereby joining the adjacent packs together such that they are movable relative to each other by rotation about two or more different edges. The apparatus may further comprise adhesive application means, which applies adhesive to either the strap or corresponding regions on the packs such that each strap can be adhered to each of two adjacent assembled packs. Alternatively, the apparatus may further comprise adhesive activation means for activating adhesive, which is pre applied to the strap or corresponding regions of the packs.
The adhesive application means preferably applies adhesive to the end regions of the straps such that the straps can be fixed to the packs. Alternatively, or in addition the adhesive may be applied to corresponding regions on the faces of the packs to which the end regions of the straps are to be fixed. Alternatively, the end regions of the straps may be primed with an adhesive such as heat activated or water activated adhesive that will be activated by the adhesive activation means.
The apparatus may further comprise pressure application means. Following application or activation of the adhesive, the pressure application means is suitably operable to apply pressure to the end regions of the straps to promote sound adhesion between the end regions and the receiving faces of each pack.
The apparatus may further comprise heating means, which may be suitable to heat the end regions of the straps such as to activate adhesive applied thereto. Alternatively, or in addition the heating means may promote setting of the applied or activated adhesive such that the efficiency of joining the components together may be improved.
The apparatus may further comprise cooling means, which may be operable to cool the assembled packs to promote efficient setting of the adhesive.
One of the one or more packing machines may be operable to complete assembly of the plurality of assembled packs by applying an outer blank to the combination of assembled packs, wherein the outer blank may comprise a lid portion, which is foldable by one of the one or more packing machines. One of the one or more packing machines may be operable to fold a lid portion, which may be provided as an integral part of one or more of the plurality of assembled packs.
Preferably, the one or more packing machines comprise a smoking article receiving station, a foil wrapping unit, an inner frame blank conveyor, a folding station and conveying means.
The present invention further provides a method of making a pack, the method comprising the steps of the steps of assembling a plurality of assembled packs, applying a strap to one face of all but one of the plurality of assembled packs; guiding the plurality of assembled packs such that the face of each assembled pack having the strap applied thereto abuts a corresponding face of another of the plurality of assembled packs and thereby sandwiching the strap between the abutting faces; and fixing the strap about adjacent packs such that the packs are joined together and are movable relative to each other by rotation about one or more edges.
Depending on the orientation of the plurality of assembled packs on exit from the packing machine(s), the method may further comprise the step of adjusting the orientation of at a least one of the plurality of assembled packs such that the orientation of each of the plurality of packs is the same.
The method of making the pack may further comprise the step of assembling an outer frame member about the combination the plurality of packs and the strap. The outer blank may include a lid portion, wherein the method further comprises the step of folding the lid portion about the packs. Alternatively, wherein at least one of the plurality of assembled packs includes a lid portion, the method may include the step of folding the lid portion about the packs.
The method may further comprise applying an outer cellophane wrapper to the pack.
Embodiments of the present invention will be described by way of example only with reference to the accompanying drawings in which:
a is a perspective view of two packs joined together by a strap system comprising three straps such that the packs are rotatable relative to each other about two different edges;
b illustrates a strap system, as applied to the packs in
a is a perspective view of two packs joined together by an alternative strap system to that of
b illustrates the strap system, comprising one strap, which joins the two packs of
Referring to
The illustrated examples comprise one pack P1, which contains seven (7) cigarettes C and another pack P2 that contains thirteen (13) cigarettes C. In both packs P1, P2, the cigarettes C are wrapped in a foil inner wrapper (not shown), and a further wrapper of paper or card to form a more rigid inner and/or outer frame. The two packs P1, P2 are arranged with faces F1, F1′ in a face-to-face abutting relation and the strap system S is sandwiched between them. The strap system S may comprise a single strap (see
Referring to
The description that follows relates to the examples illustrated in
By fixing the tabs A1, A2, A3 and C1, C2, C3 to the packs P1, P2 in this manner the two packs are joined together and they are movable relative to each other by rotation about two different edges.
a illustrates a pack P, wherein the strap system S is attached to two packs P1, P2, which are each closable by separate hinged-lids L1, L2.
Referring to
The description that follows is directed to the packaging apparatus as illustrated in
Wrapping machines MC1 and MC2 each receive cigarettes and bundle them respectively into bundles of seven (7) and thirteen (13) cigarettes and wrap them to form the first and second packs P1, P2 for combining to form the combined pack P. Other quantities and combinations of quantities of cigarettes may be used to form the packs. For example, one pack comprising a bundle of seven (7) and one pack comprising a bundle of ten (10) cigarettes is suitable for vending packs.
In the orientation shown the second packing machine MC2 is arranged in parallel with the first packing machine MC1. Therefore, the orientation of the pack P2 on exit from the second packing machine MC2 is different than the orientation of the first pack P1 on exit from the first packing machine P1. A turnover unit TU is included as part of the conveyer system at the exit of the second packing machine MC2 and is operable to flip/rotate the second pack P2 through 180 degrees on exit from the second packing machine MC2. By flipping/rotating the second assembled pack P2 the leading edge of the second assembled pack P2 on exit from the second packing machine MC2 becomes the trailing edge of the pack P2 on entry to the strap applicator MC4. Therefore, both packs P1 and P2 enter the strap applicator MC4 with the top (lid end) of the packs leading.
The strap applicator MC4 is operable to apply the strap system S between the first and second packs P1, P2 and to fix the end regions (tabs) A1, A2, A3, C1, C2, C3 of the straps to the first and second assembled packs P1, P2 such that they are combined to form the pack P, wherein the two packs P1, P2 are movable relative to each other by rotation about two different edges.
Transfer conveyors TC carry the packs P1, P2, P to and from the packing machines MC1, MC2, MC3 and the strap applicator MC4 during each stage of the packaging process.
In the embodiments described and illustrated the third packing machine MC3 receives the combined pack P from the strap applicator MC4 and is operable to conduct any final packaging steps before the final retail pack is output. For example, if a single lid L is applicable (see
The first and second assembled packs P1 and P2 may have separate lids L1, L2 (see
With appropriate adaptation to the conveyor system it is possible that one machine combined with a strap applicator MC4 may be used to produce the separate packs P1 and P2 and finally the combined pack P.
The method of packaging the cigarettes in the combined pack P is illustrated in
Referring to both
Prior to entering the strap applicator MC4, the second assembled pack P2 is inverted ST2′ through 180 degrees to correct the orientation of the pack such that both the first and second assembled packs P1, P2 enter the strap applicator MC4 with the lid end leading.
The first assembled pack P1, containing seven (7) cigarettes, is fed ST3 into the strap applicator MC4 and a strap or straps which form the strap system S is output ST4 from the strap applicator MC4 and is placed ST5 on top of the first pack P1. The second pack P2 is transferred ST6 to the strap applicator MC4 such that the strap system S is sandwiched between the first and second assembled packs P1, P2. The combination P of first and second assembled packs P1, P2 and the strap system S is transferred ST7 via a conveyor to a first gluing station, wherein glue spots may be applied to a first set of the tabs C1, A2 and A3 or corresponding regions on the side panels of the first and second assembled packs P1, P2.
Referring to
Referring to
The folding guides may be provided by, for example, rollers or pressure plates. Cooling means may also be utilised to provide a cooling step (not illustrated) wherein the speed of setting the adhesive may be accelerated.
In the example illustrated in
A single index drum (not illustrated) may perform the combined process of the first and second index drums ID1, ID2. The drum or drums may be arranged to rotate clockwise or counter clockwise or the rotational direction may be changed during the fixing process. In
On exit from the gluing and fixing stations in both examples described above, the combined pack P is transferred ST13, ST19 to a turnaround unit to reverse the orientation of the combined pack P before transferring it downstream to the third packing machine MC3 for the final packing step STF. The final stage STF may include applying an outer casing and lid blank to the combine pack P and folding the lid portion. Alternatively, the final packing step STF may include folding the lid portion L to form a lid, wherein the lid portion L is carried by one of the first or second assembled pack P1, P2.
In the embodiments illustrated in
Individual straps S1, S2, S3 may be applied separately to the first assembled pack P1, either by a single strap applicator MC4 or by separate strap applicators (not shown).
In the embodiments illustrated the first and second packing machines MC1, MC2 are arranged in parallel, which as discussed above requires an inverter/turnover unit TU such that the orientation of one pack is corrected with respect to the other pack. Alternatively, the first and second machines MC1, MC2 may be placed in series with the second machine MC2 being upstream of the first packing machine MCI. It will be appreciated that the transfer conveyor system TC would require modification to ensure that the transfer of the second pack P2 to the strap applicator MC4 is timed such that the strap(s) is sandwiched between the first and second assembled packs P1, P2.
The embodiments described and illustrated utilise at least two packing machines. However, it will be appreciated that each machine performs a number of processes and indeed it is possible that one packing machine could perform the processes to join two or more packs together.
A single machine (not illustrated) could also incorporate the features of the strap applicator MC4 and the final packing machine MC3, such that a single unit begins and completes the process of joining two or more packs together.
Each of the examples described above combine two assembled packs together. However, the same apparatus and process may be used to combine more than two packs together, wherein a strap system S will be applied to one face of all but one of the packs being joined together.
Cigarettes are initially fed into the packing machine at a receiving station. Subsequently, the cigarettes are aligned and placed on a conveyor to be bundled into appropriate amounts such as bundles of seven or thirteen ready for packing. After bundling the cigarettes, they may pass through a wrapping station wherein the cigarettes are closely packed in foiled paper. The foil may be bobbin-fed such that the foil wraps the requisite cigarette bundle as necessary and also applies the necessary perforations along an upper section for easy removal by the consumer on opening the pack. The foil wrapped bundle is then conveyed to an individual folding station in an inner frame blank conveyor. In addition, a blank feed mechanism, which conveys an inner frame blank member into an individual folding station in the inner frame blank conveyor, may also be part of the packing machine.
The individual folding station may comprise a rounded pocket, a square pocket or a bevelled pocket such that the shape of the pocket is suitable for an inner frame blank member having respectively rounded square or bevelled longitudinal margins.
Inner frame blank members may be folded about the foil-wrapped bundles of cigarettes within the packing machine thereby forming the assembled packs Pt, P2.
Each of the examples described relate to the assembled packs P1, P2 each containing cigarettes on exit from the packing machines MC1, MC2. However, the first and second assembled packs P1, P2 may be assembled without any cigarettes and the cigarettes may be inserted downstream in the process of joining the packs together. The cigarettes may be inserted into the packs P1, P2 prior to the final process step STF, wherein the lid portion L is folded and the packs P1, P2, P are closed.
In conclusion, although a variety of embodiments have been described herein, these are provided by way of example only, and many variations and modifications on such embodiments will be apparent to the skilled person and fall within the scope of the present invention, which is defined by the appended claims and their equivalents.
Number | Date | Country | Kind |
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0614942.1 | Jul 2006 | GB | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/GB2007/002296 | 6/20/2007 | WO | 00 | 4/23/2009 |