EP1023991A2 - Method and machine for making packages (for cigarettes) - Google Patents

Abstract

Projections in the form of folded brackets (19) or tabs are arranged within the packet. Support projections are arranged in the base to support the contents of the packet. The folded brackets or tabs are bent on a planar or unfolded blank to form the support projections. An Independent claim is included for an apparatus for manufacturing cigarette packets.

Description

The invention relates to a method for producing (cigarette) packs from blanks from (thin) cardboard or the like Packaging material, being inside of the packs Folded tabs or folds of the blank formed projections are arranged, in particular support projections in the area of a Bottom wall for supporting the contents of the pack, namely a block of cigarettes. The invention further relates to a device to carry out the procedure.

It is primarily about the manufacture of cigarette packs of the Type hinged box in the version according to US 4,241,827 this known cigarette pack are in the area of the bottom wall projections formed by folding webs or folding tabs which the cuboid pack content, namely one of one The inner wrapping surrounding the group of cigarettes rests. The support tabs cause a smaller in size Package contents take a correct position, especially in relating to a lid.

The invention is concerned with the production of such or similar packs.

The invention has for its object the manufacture of Supporting projections within the pack make sense in the manufacturing process incorporate them.

The method according to the invention is used to achieve this object characterized in that the folding flaps or folding webs for Formation of the support projections at least partially on the flat or largely unfolded blank can be deformed.

In the invention, the procedure is preferably such that during transporting the unfolded blank along a blank path the folding flaps or folding webs finished or at least pre-folded and during the further folding process of the blanks ready to be folded. The folding or pre-folding takes place during the continuous transport of the blanks along the cutting path. The given manufacturing process for the packs is done by attaching the support tabs not affected.

The device according to the invention, namely a partial area of a Packaging machine for (cigarette) packs consists of a horizontal or inclined cutting path for transport of the (largely) unfolded blanks. In the field of Cutting webs are stationary but movable folding or Forming organs arranged during the movement of the blanks the folding or shaping of the folding flaps or folding webs. The folding can then be completed, in particular in the area of a folding turret or at the handover the cuts to this folding turret.

Further details of the invention relate to the configuration the folding or shaping organs for the folding flaps or folding webs as well the integration of these organs in the packaging machine for the production of the relevant packs.

Fig. 1

eine teilweise fertiggestellte Zigarettenpackung des Typs Klappschachtel in perspektivischer Darstellung,

Fig. 2

einen Abschnitt eines Zuschnitts für eine Klappschachtel gemäß Fig. 1,

Fig. 3

einen Teilbereich einer Verpackungsmaschine in Seitenansicht bzw. im Vertikalschnitt,

Fig. 4

eine Einzelheit der Verpackungsmaschine in Seitenansicht bzw. in der Schnittebene IV-IV der Fig. 5,

Fig. 5

die Einzelheit der Fig. 4 in queraxialer Ansicht,

Fig. 6

eine weitere Einzelheit der Vorrichtung im Bereich der Einführung des Zuschnitts in einen Faltrevolver,

Fig. 7

die Einzelheit gemäß Fig. 6 in Queransicht, mit Vertikalschnitt,

Fig. 8

die Einzelheit gemäß Fig. 6 und Fig. 7 im Grundriß,

Fig. 9

eine Darstellung einer Zigarettenpackung analog Fig. 1 für ein anderes Ausführungsbeispiel,

Fig. 10

einen Teil eines Zuschnitts für eine Packung gemäß Fig. 9,

Fig. 11

eine Bearbeitungseinheit für einen Zuschnitt gemäß Fig. 9 bzw. Fig. 10,

Fig. 12

eine Einzelheit des Organs gemäß Fig. 11 in Queransicht,

Fig. 13

ein weiteres Detail der Einheit gemäß Fig. 11,

Fig. 14

eine andere Ausführungsform einer Bearbeitungseinheit für Zuschnitte für Packungen gemäß Fig. 9 in Seitenansicht,

Fig. 15

eine Queransicht der Vorrichtung gemäß Fig. 14,

Fig. 16

einen Grundriß zu Fig. 14 und Fig. 15,

Fig. 17

eine Darstellung analog Fig. 14 In einer veränderten Position,

Fig. 18

eine nochmals veränderte Stellung eines Organs der Einheit gemäß Fig. 17.

The manufacturing process and exemplary embodiments of the devices according to the invention are explained in more detail below with reference to the drawings. It shows:

Fig. 1

a partially completed cigarette packet of the hinged box type in a perspective view,

Fig. 2

1 shows a section of a blank for a hinged box according to FIG. 1,

Fig. 3

a partial area of a packaging machine in side view or in vertical section,

Fig. 4

a detail of the packaging machine in side view or in the section plane IV-IV of Fig. 5,

Fig. 5

the detail of Fig. 4 in a transverse axial view,

Fig. 6

another detail of the device in the area of the introduction of the blank into a folding turret,

Fig. 7

6 in transverse view, with vertical section,

Fig. 8

the detail according to Fig. 6 and Fig. 7 in plan,

Fig. 9

2 shows a representation of a cigarette packet analogous to FIG. 1 for another exemplary embodiment,

Fig. 10

part of a blank for a pack according to FIG. 9,

Fig. 11

10 a processing unit for a blank according to FIG. 9 or FIG. 10,

Fig. 12

11 shows a detail of the organ according to FIG. 11 in a transverse view,

Fig. 13

another detail of the unit according to FIG. 11,

Fig. 14

another embodiment of a processing unit for blanks for packs according to FIG. 9 in side view,

Fig. 15

14 shows a transverse view of the device according to FIG. 14,

Fig. 16

14 shows a plan view of FIGS. 14 and 15,

Fig. 17

a representation analogous to FIG. 14 in a changed position,

Fig. 18

another changed position of an organ of the unit according to FIG. 17.

The examples shown in the drawings deal with the production of a design detail of cigarette packs of the hinged box type (hinge-lid pack). Such Packs consist of a blank made of thin cardboard. The pack itself forms a (lower) box part 10 and a lid 11 connected thereto. The box part 10 consists of a front wall 12, a rear wall 13 and narrow, upright side walls, each consisting of an inner Side tab 14 and an outer side tab 15 exist. In the finished pack, these lie all over each other and are bonded together.

In the area of a bottom wall 16 there are lateral support projections 17 educated. These serve to support the contents of the pack, namely a cuboid cigarette block 18.

In the embodiment according to FIG. 1 and FIG. 2 exist the two side protrusions from an angular shape folded folding web 19. This consists of two legs 20, 21, which is on the one hand in the region of the side tab 14 and on the other hand in the area of connected to the inner side tabs 14 extend corner flaps 22. A fold line 23 between side tabs 14 and corner tabs 22 separates them into one angular position to fold legs 20, 21 from each other.

The attachment of the support projections 17 or the folding of the Folding bars 19 are integrated in the manufacturing process of the pack. The procedure is such that the folding webs 19 are unfolded Condition of the blank to be preformed, in particular by breaking the fold lines delimiting the legs 20, 21. After that, namely when folding the blank for the rest, the folding web 19 in the position to form the support projections 17 folded.

The blanks for the hinged box become a blank magazine 24 removed and in a downward inclined in the conveying direction Cutting path 25 introduced. This consists of underpasses 26 and top guides 27, between which the blanks are managed with sections. The cutting path 25 runs above a folding turret 28, which is plate-shaped and is driven to rotate in the horizontal plane. The folding turret 28 has a plurality of pockets 29, in each of which a blank is introduced from above. The executive body, namely a pivotally mounted pressure plate 30, detects the cut in the area of the rear wall 13 and possibly adjacent Areas of the lid 11. By swiveling movement the cutting through the pressure plate 30 from the area of the cutting path 25 moved down into the pocket positioned below 29, parts of the blank being folded at the same time, so that the L-shaped position of the blank is created according to Fig. 1. The packaging machine is regarding of the organs described, especially with regard to the folding turret 28 and the cutting web 25, corresponding to US 4,084,393 educated.

Folding members are arranged in the region of the cutting path 25 Pre-fold or finish folding the folding webs 19 or folding flaps for the support projections 17.

According to FIG. 3, the blanks deposited on the blank web 25 transported by conveyor rollers 31. In connection to below the plane of movement of the blanks, this is a folding organ arranged for the blanks, namely a folding bike 32 as well a counter organ, namely a counter wheel 33 above the path of movement. The folding web 19 is pre-folded by these two organs, by breaking the material in the range of Fold lines. The folding web 19 is at least partially erected, taking the corner flap 22 into one erected or inclined position (Fig. 4). After that Folded web 19 and corner flaps 22 moved back into the flat starting position, namely through underpass 26 and overpass 27.

It is therefore a largely flat cut in the position promoted above the folding turret 28.

The folding bike 32 is used to carry out the (pre) folding of the folding web 19 provided on the circumference with a folding projection 34. This occurs with the rotation of the pinwheel 32 precisely from below forth against the cut in the area of the folding web 19. The folding projection 34 is set up to the dimensions of the folding web 19, namely has about the same width (Fig. 5). The cross-section of the folding projection 34 is trapezoidal. A front 35 in the direction of rotation detects the Leg 20 of the folding web 19 and presses this as a result of the relative movement up. A transverse edge 36 of the folding tab 34 acts in the area of the folding line 23, so that the folding web 19 by the shape of the folding projection 34 in that shown in FIG Shape is formed. Through the connection with the corner flap 22 this is automatically erected.

In order to ensure correct (pre) folding of the folding web 19, the counter wheel 33 presses the blank, namely the side tab 14, against the circumferential surface of the gear wheel 32 or secures this area of the cut against lifting or erection. For this purpose, the counter wheel 33 consists of two wheel disks 37, 38, between which the folding projection 34 is movable is. The wheel disks 37, 38 extend on both sides of the folding projection 34 or of the folding web 19, so that in the area in addition to the folding web 19, a back pressure is exerted on the blank will (Fig. 5).

The counter wheel 33 or its wheel disks 37, 38 are with a segment-shaped cutout 39 provided. This is positioned that the erecting corner flap 22 during the Folding process occurs in this cutout 39.

Due to the design of the support projection 17 according to FIG. 1 this becomes when folding or erecting the side tab 14th and the corner flap 22 folded. This folding process takes place when pressing the blank into a pocket 29 of the folding turret 28. As can be seen from FIGS. 6 and 8, the Pressure plate 30 the blank in the area of the rear wall 13. A A special feature is that the pressure plate 30 is adjacent to the bottom wall 16 has a smaller width by lateral Corner recesses 40. The support projections are located in this area 17 when the blank in the pocket 29 of the Faitrevolvers 28 has been pressed in (position according to FIG. 1).

During the downward movement of the blank into the pocket 29 lateral guides 41 are effective, which the blank parts erect (US 4,084,393). At the same time in this area Effective folding organs that erect the folding web 19. It deals fold fingers 42, which in the present case are L-shaped are formed and the folding with the help of an upward Execute arm legs 43. This occurs from the bottom forth in the area of the folding web 19 during the downward movement of the cut. The folding leg 43 is in the Embodiment shown in the region of the leg 21 of the Faltstegs 19 effective. This will also make the corner flap in question 22 by the folding finger 42 with erected or in the folded position brought. Then the folding fingers 42 become disengaged moved with the blank, by down and sideways movement. The folding fingers 42 are to be carried out the up and down movement on an actuating linkage 44 appropriate. The movement is due to the downward movement of the pressure plate 30 matched, namely to the sequence of the folding process for cutting.

After folding the support projections 17 into the position shown in FIG. 1, the blank is known in the area of the folding turret 28 Way folded and the package filled.

FIG. 9 and FIG. 10 are representations analogous to FIG. 1 and FIG. 2 for a different configuration of the support projections 17. These consist of two folding tabs 45, 46 in the area of the (inner) side tab 14 are formed, immediately above the bottom wall 16. The two folding tabs 45, 46 are through two longitudinal punchings 47 and a transverse punching 48 are limited. Everyone Folding tab 45, 46 is foldable about a hinge line 49, 50 in a position transverse to the side tab 14.

Since the support projections 17 in this embodiment only consist of a folding flap of the pack, namely the side flaps 14, the folding flaps 45, 46 on the unfolded, flat blank can be folded into the end position. To for this purpose there are corresponding folding elements in a transport path of the blank provided, namely in the area of the blank web 25. Below the cutting path is a folding organ attached, namely a folding bike 51. This is on a (cylindrical) circumferential surface in the middle with a folding projection 52 provided, due to the rotation of the folding bike 51st is moved from below against the blank, in the area the folding tab 45, 46. The folding projection 52 is with a tapering towards the outside, for example tapering or sharp-edged Provide cross section (Fig. 12). An upper or radial outer edge 53 acts in the area of the transverse punching 48 on the folding tab 45, 46 so that it is in an inclined position be raised (Fig. 12).

This first folding position of the folding tabs 45, 46 is one further folding organ completed, namely from a stationary Folding shoe 54, which is positioned above the movement path of the blank and the pre-folded folding tabs 45, 46 in one folds upright position. The folding shoe 54 is on the incoming Cutting or the folding tab 45, 46 facing Side with a tapered end 55. This enters the area between the pre-formed folding tabs 45, 46 and aligns them with continued movement of the blank on. The folding shoe 54 has a width for this purpose, approximately the distance between the erected folding tabs 45, 46 from one another corresponds.

The cutting is after these folding steps for further processing prepared, especially in accordance with the 3 in connection with US 4,084,393.

In the embodiments described so far, the elongated, approximately rectangular blanks with their Transmitted longitudinal extent in the conveying direction, wherein the areas of the cover 11 are in the conveying direction at the front. Fig. 14 to 18 show details of an apparatus for the Folding of support projections 17 in the case of cross-conveyed blanks, that is, with the longitudinal extent lying transversely to the conveying direction. An exemplary embodiment with support projections is shown 17 corresponding to FIGS. 9 and 10.

In this configuration, the folding tabs 45 and 46 are in the direction of movement of the blank successively arranged. By means of special folding elements, the first one is in the direction of conveyance rear folding tab 46 and then the front one Folding tab 45 folded.

For this purpose is below the trajectory, namely on the Underside of the blank web 25, a folding unit 56 is arranged. This has a folding element that can be moved in several directions on, namely a folding rod 57. The folding rod 57 is one transverse axis rotatable and at the same time in the longitudinal direction or Slidable in the radial direction. For this purpose, the folding rod 57 in a transverse axial recess of a rotating body 58 slidably mounted. In an initial position (Fig. 14) the folding rod 57 obliquely, with the upper folding end incoming blank facing. With continued movement the folding rod 57 occurs by rotating the rotating body 58 and by upward displacement in the area of the folding flaps 45, 46, namely through the blank. Thereby the folding tabs 45, 46 are erected. Due to the initially existing oblique position is the in Direction of delivery rear folding tab 46 over the hinge line 49 into a backward "broken" Position folded. With continued movement and by rotation of the rotating body 58, the folding rod 57 moves into another, in Inclined conveying direction (Fig. 18). In this is in the same way the front folding tab 45 on the deformed upright position. This keeps the folding tabs 45, 46 after pulling back the folding rod 57 in the upright position Position (Fig. 18).

The folding unit 56 works together with counterfolding elements. It these are two spaced apart Folding strips 59 above the movement path of the blanks. The fixed folding strips 59 point in the conveying direction of the blanks and are spaced from each other corresponds approximately to the width of the folding tabs 45, 46. these can accordingly erected between the folding strips 59 by the folding rod 57 become. Those extending next to the folding tabs 45, 46 Areas of the cut are shown by the folding bar 59 held in the flat position or in the plane of the conveyor track.

After performing this folding step, the parts of the support tabs are 17 folded. The cutting can now be done in the known Be processed further.

Reference symbol list :

10th

Box part

11

cover

12th

Front wall

13

Back wall

14

Side lobes

15

Side lobes

16

Bottom wall

17th

Support tab

18th

Block of cigarettes

19th

Folding bridge

20th

leg

21

leg

22

Corner rag

23

Fold line

24th

Cutting magazine

25th

Cutting path

26

underpass

27

Overpass

28

Folding turret

29

bag

30th

printing plate

31

Conveyor roller

32

Folding bike

33

Counter wheel

34

Folding tab

35

Flank

36

Transverse edge

37

Wheel disc

38

Wheel disc

39

Neckline

40

Corner recess

41

guide

42

Folding fingers

43

Fait leg

44

Actuating linkage

45

Folding rag

46

Folding rag

47

Longitudinal punching

48

Cross punching

49

Hinge line

50

Hinge line

51

Folding bike

52

Folding tab

53

Edge

54

Faitschuh

55

The End

56

Folding unit

57

Folding rod

58

Rotating body

59

Folding bar

Claims (10)

Method for producing (cigarette) packs from blanks made of (thin) cardboard or similar packaging material, wherein projections formed by folding webs (19) or by folding tabs (45, 46) are arranged in the region, in particular supporting projections (17) in the region a bottom wall (16) for supporting the pack contents, namely a cigarette block (18), characterized in that the folding webs (19) or folding tabs (45, 46) for forming the supporting projections (17) are at least partially on the flat or (largely) unfolded blank can be deformed. A method according to claim 1, characterized in that the unfolded, flat blanks in the region of a blank web (25) are at least partially folded with respect to the folding webs (19) or folding tabs (45, 46), in particular prefolded to break fold lines. Method according to claim 1 or 2, characterized in that the folding webs (19) return to the flat original shape of the blank after the pre-folding for further processing and that the blank is then processed in the usual way, namely folded and filled. Method according to claim 1 or one of the further claims, characterized in that individual folding flaps (45, 46) are folded into the folded position in the region of the cutting path (25) and the cut is then processed in the usual way, namely folded and filled. Device for producing (cigarette) packs from blanks made of thin cardboard or similar packaging material, preferably packs of the folding box type, the packs to be produced having projections formed by folding webs (19) and / or folding tabs (45, 46), preferably supporting projections ( 17) for supporting the pack contents, namely a cigarette block (18), characterized by the following features: a) flat, largely unfolded blanks with punchings to limit the folding webs (19) and / or folding tabs (45, 46) can be transported along a cutting path (25), b) the blanks can be fed to a folding turret (28) with pockets (29) for receiving the blanks and for folding them, c) in the region of the blank web (25), folding or shaping members are positioned in a fixed position for (partial) folding or deformation of the folding webs (19) and / or folding flaps (45, 46) during the transport of the blanks along the blank web (25 ). Apparatus according to claim 5, characterized in that movable, in particular rotating folding members are arranged below and / or above the cutting path (25), preferably folding bikes (32, 51) or rotating bodies (58) with folding tools arranged or projecting on the outer circumference, in particular Folding projections (34, 52) or folding bars (57) which act in the region of the path of movement of the folding bars (19) or folding tabs (45, 46) and from below or above, deforming the folding bars (19) or folding tabs (45, 46 ) act on them. Device according to claim 6 or one of the further claims, characterized in that counter tools, in particular stationary or fixed hold-down devices, such as counter wheels (33), folding strips, are arranged on the side of the movement path of the blanks opposite the folding tools (32, 51, 58) (59). Device according to claim 6 or one of the further claims, characterized in that further folding members adjoining the folding tools (51) in the conveying direction are arranged to complete the deformation or folding of the folding webs (19) or folding tabs (45, 46), preferably on the the folding tools (51) opposite side of the movement path of the blanks. Device according to claim 8 or one of the further claims, characterized in that the further, additional folding members are arranged in a fixed manner, in particular as fixed folding strips or folding shoes (54) which cause the folding webs (19) or folding flaps (45, 46) to fold Relative movement of the blanks transported. Apparatus according to claim 5 or one of the further claims, characterized in that in order to complete the prefolded folding webs (19) or folding flaps (45, 46), further folding members are assigned to the blanks, preferably in the area of the transfer of the blanks to the folding turret (28), for example folding fingers (42) which can be moved relative to the blanks.

Images