EP0885809B1 - Method and apparatus for making hinged lid boxes for cigarettes - Google Patents

Description

The invention relates to a method for producing cigarette packs of Type folding box, by folding blanks from thin cardboard in one Packaging machine, the blanks being cut from a sheet of material are separated and folding tabs delimited by punch cuts, as well as fold lines formed by embossing. Furthermore, the Invention an apparatus for performing this method.

Hinged boxes are a widespread type of packets for cigarettes worldwide. The folding boxes consist of a (lower) part of the box and an a rear wall of the same hinged lid. Furthermore belongs to this type of pack a collar - also made of thin cardboard - that is in one piece connected to the blank for the hinged box or from a separate Cutting can be made.

The blanks for this type of pack have so far been manufactured separately, in particular in a paper mill. The (one-sided) printed, with punching lines and embossing lines Blanks provided for folding are delivered as a stack of blanks and entered into the packaging machine, usually in a shaft shape Blank magazines. The material supply of the packaging machine with regard the cuts are complex and prone to failure.

In addition, devices already exist in which blanks for manufacturing of cigarette packs of the hinged box type directly in the area of a packaging machine be obtained from a web of material, namely by Embossing, punching and cutting the material web. Such a device is known for example from GB 2 282 800. The individual processing steps as such are also known from US 4,715,847.

The invention is based on the task of supplying packaging machines with blanks from thin cardboard for the production of cigarette packs of the folding box type in terms of performance and reliability to improve.

a) die Materialbahn ist einseitig mit einer Bedruckung versehen, nämlich unter Bildung von nebeneinander liegenden Zuschnitten mit einer dem äußeren Design der Klappschachtel entsprechenden Bedruckung,

b) die Bedruckung ist so angebracht, dass die Zuschnitte innerhalb der Materialbahn quer zur Längserstreckung derselben gerichtet sind, derart, dass die Bedruckung für einen Schachtelteil und einen Deckel in Querrichtung der Materialbahn aufeinander folgen,

c) in einer der Verpackungsmaschine zugeordneten Zuschnitteinheit werden zuerst an der Materialbahn Prägungen angebracht zur Bildung der Faltlinien der herzustellenden Zuschnitte, nämlich quer zur Längserstreckung der Materialbahn gerichtete Längsfaltlinien und in Richtung der Materialbahn verlaufende Querfaltlinien,

d) danach werden Stanzschnitte in der Materialbahn angebracht zur Bildung von Faltlappen und gleichzeitig ein quergerichteter Trennschnitt zum Abtrennen jeweils eines Zuschnitts von der Materialbahn,

e) die Materialbahn weist eine geringfügig größere Breite auf als die Längsabmessung der Zuschnitte, wobei an beiden Längsrändem der Materialbahn durch konturierte Längsschnitte, die Konturen der Zuschnitte hergestellt werden durch Abtrennen von entsprechenden Materialstücken während des Anbringens der Stanzschnitte,

To achieve this object, the method according to the invention is characterized by the following features:

a) the material web is provided with a print on one side, namely with the formation of adjacent blanks with a print corresponding to the outer design of the hinged box,

b) the printing is applied in such a way that the blanks within the material web are directed transversely to the longitudinal extent thereof, such that the printing for a box part and a lid follow one another in the transverse direction of the material web,

c) in a cutting unit assigned to the packaging machine, embossments are first applied to the material web to form the folding lines of the blanks to be produced, namely longitudinal folding lines directed transversely to the longitudinal extent of the material web and transverse folding lines running in the direction of the material web,

d) punch cuts are then made in the material web to form folding flaps and at the same time a cross-cut cut to separate one blank from the material web,

e) the material web has a slightly larger width than the longitudinal dimension of the blanks, the contours of the blanks being produced on both longitudinal edges of the material web by contoured longitudinal cuts by cutting off corresponding pieces of material while the die cuts are being made,

The finished blanks are collected according to the invention to form Stacking and via vertical and horizontal conveyors a cutting magazine on the machine side fed.

Another peculiarity of the invention is that the wound by the Warehousing of the material web resulting deformations, namely curves in the area of the blanks. For this purpose the Material web passed through a counter-forming unit, namely in particular passed over deforming rollers. The degree of (counter) deformation of the material web is adjustable according to the invention, namely according to the diameter the bobine. Their decreasing during the consumption of packaging material Diameter is therefore monitored according to the invention.

An inventive device for performing the method has the Features of claim 5. The device is useful as an additional device trained for a packaging machine for folding boxes. Then she is Connected to the packaging machine via vertical conveyors and horizontal conveyors.

Further details of the invention relate to the method and the device for producing and processing the blanks for hinged boxes, including measures for detection and Elimination of incorrect cuts.

Fig. 1

einen Abschnitt einer Materialbahn aus dünnem Karton in Draufsicht,

Fig. 2

einen von der Materialbahn gemäß Fig. 1 abgetrennten Zuschnitt für Klappschachteln,

Fig. 3

eine Verpackungsmaschine mit angeschlossener Zuschnittvorrichtung in vereinfachter Draufsicht,

Fig. 4

die Verpackungsmaschine gemäß Fig. 3 mit Zuschnittvorrichtung in Seitenansicht, in vergrößertem Maßstab,

Fig. 5

ein Ausführungsbeispiel einer Zuschnittvorrichtung in schematischer Seitenansicht,

Fig. 6

eine Einheit der Zuschnittvorrichtung in Seitenansicht, bei vergrößertem Maßstab,

Fig. 7

eine Zuschnittstation als Einzelheit der Zuschnittvorrichtung in Seitenansicht, bei nochmals vergrößertem Maßstab,

Fig. 8

eine Verteilerstation für Zuschnitte in Seitenansicht, bei erneut vergrößertem Maßstab,

Fig. 9

einen Querschnitt durch eine Einzelheit der Zuschnittvorrichtung, nämlich im Bereich der Handhabung von Zuschnittstapeln,

Fig. 10

einen Abschnitt einer Materialbahn für Zuschnitte nach einem anderen Herstellungsverfahren,

Fig. 11

eine Verpackungsmaschine mit Zuschnittvorrichtung in schematischer Draufsicht für die Herstellung von Zuschnitten nach dem Verfahren gemäß Fig. 10,

Fig. 12

ein Teilbereich der Vorrichtung gemäß Fig. 11 in Seitenansicht,

Fig. 13

die Zuschnittvorrichtung für das Ausführungsbeispiel gemäß Fig. 11 in vereinfachter, vergrößerter Seitenansicht,

Fig. 14

einen Teilbereich, nämlich eine Zuschnittstation, der Vorrichtung gemäß Fig. 13 in nochmals vergrößertem Maßstab.

Exemplary embodiments and details of the method and the device are explained in more detail below with reference to the drawings. It shows:

Fig. 1

a section of a material web made of thin cardboard in plan view,

Fig. 2

1 a blank for hinged boxes separated from the material web according to FIG. 1,

Fig. 3

a packaging machine with connected cutting device in a simplified plan view,

Fig. 4

3 with cutting device in side view, on an enlarged scale,

Fig. 5

an embodiment of a cutting device in a schematic side view,

Fig. 6

a unit of the cutting device in side view, on an enlarged scale,

Fig. 7

a cutting station as a detail of the cutting device in side view, on a further enlarged scale,

Fig. 8

a distribution station for cuts in side view, on a further enlarged scale,

Fig. 9

2 shows a cross section through a detail of the cutting device, namely in the area of handling cut stacks,

Fig. 10

a section of a material web for blanks according to another manufacturing process,

Fig. 11

10 shows a packaging machine with a cutting device in a schematic top view for the production of cuts according to the method according to FIG.

Fig. 12

11 shows a partial area of the device according to FIG. 11 in a side view,

Fig. 13

11 shows the cutting device for the exemplary embodiment according to FIG. 11 in a simplified, enlarged side view,

Fig. 14

a partial area, namely a cutting station, of the device according to FIG. 13 on a further enlarged scale.

Fig. 2 shows a typically designed blank 10 for the production of a hinged box or hinge-lid pack for cigarettes. The elongated blank 10 is made from a partial area to form a box part 11 and from a further partial area to form a cover 12.

Contours at the ends of the blank 10 are characteristic. On one side is a closing edge 13 of the box part 11 from a transverse section and lateral oblique Legs formed so that a trapezoidal edge recess of the blank 10 arises. Opposite in the area the lid 12 has a special contour a lid inner tab 14 and by oblique closing edges 15th of the lid.

Furthermore, the design of the consumable blank is 10 characterized by longitudinal fold lines 16 and transverse fold lines 17. Finally, die cuts 18 belong to the limitation of folding flaps in the area of the side walls of the folding box to the typical image of the blank 10. A more detailed Representation and description of such a blank 10 for hinged boxes results from US 5 462 223.

Blanks 10 or similarly formed are successively separated from a continuous web of material 19. This exists made of thin cardboard. The material web 19 is in the area a cutting device 20 withdrawn from a bobbin 21. The cutting device 20 can also be used independently Machine for the production of complete, usable blanks 10 for the production of (cigarette) packs of Type hinge lid. The cutting device 20 is part of one here Packaging system or a packaging machine 22 for the Manufacture of this special type of pack.

The cutting device 20 is at a distance from the packaging machine 22 arranged. The blanks 10 are as Cutting stack 23 from the cutting device 20 by a Horizontal conveyor 24 of the packaging machine 22 fed.

It is important that the material web 19 in the region of the cutting device 20 of the rotatable on a support pin 25 stored Bobine 21 can be removed. Moves to this in There is a replacement bobbin (roughly the same horizontal plane) 26, also on a trunnion 27. The replacement bobbin 26 is introduced after consumption of the bobbin 21 in the manufacturing process. For this purpose, the material web 19 is shown schematically by a shown splicing unit 28 passed through. in the Area of the same finds an (automatic) connection of the expiring Material web 19 with a new material web to be connected instead of.

The material web 19 can be used for processing in the area of Cutting device 20 partially (otherwise) prepared his. Thus, the material web 19 can already be finished with one Blanks 10 corresponding printing 29 (hatched Areas in Fig. 1 and Fig. 2). Furthermore you can - if desired in the finished package - embossing 30 attached to the material web 19 at the correct position his. Certain creases can also be applied accordingly There are fold lines. The preparation of the material web 19 outside the area of packaging production, however Do not impair the ability to wind as a bobbin.

An important part of the cutting device 20 is a cutting unit 31. In their area, the blanks 10 are initially completed within the web 19 and then by transverse cut 32 separated from this.

The cutting unit 31 consists of several successive ones Working units. Each work unit takes over one Sub-function until completion of the blanks 10.

The most important work unit is a cutting unit 33. This is set up so that the material web 19 in the front End area with the die cuts 18 and with embossing or Grooves to form the longitudinal fold lines 16 and transverse fold lines 17 is provided. Furthermore, the End contours of the blanks directed transversely to the material web 19 10 by a contoured longitudinal section 34, 35 on both Long sides of the material web 19 produced. Finally leads the cutting unit 33 the transverse cut 32 by. The cut is accordingly in the area of the cutting unit 33 10 - except for the printing 29 and a possible embossing 30 - completed.

The material web 19 is in relation to the dimensions of the (transverse) blanks 10 oversized. In the area the cutting unit 33 is so on both side edges a piece of material 61, 62 separated from the material web 19, which extends in each case to the edge of the material web 19 and has the respective contour of a blank 10. This is how it is created on one side, namely in the area of the longitudinal section 34, a trapezoidal piece of material 61. On the opposite Side is in the area of the inner lid lobe 14 an approximately U-shaped piece of material 62 is separated. This Pieces of material 61, 62 are immediately before the transverse Separating cut 32 separated, so that after the in Fig. 2nd shown blank 10 is present. The print 29 is attached so that the longitudinal cuts 34, 35 - with an appropriate design the blank 10 or the pack - within the printing 29 run.

The cutting unit 33 is used to carry out these measures provided with coordinated work rolls 36, 37, the in the described distribution of tasks as cutting and embossing rollers are trained. The steps described are during the (continuous) passage of the material web 19 completed.

If - as in the present embodiment - an untreated Material web 19 is made available Cutting unit 31 equipped with additional work units, which are arranged upstream of the cutting unit 33. Thereafter, the material web 19 first runs through a printing unit 38. In the area of the same, the printing 29 becomes more packaging-appropriate Position during continuous transport of the material web 19 attached. The printing unit 38 consists essentially of an upper printing unit 39 and a lower backup roller 40.

The example in the embodiment of FIG. 1 with printing 29 provided material web 19 passes through another Working unit, namely an embossing unit 41. This also attaches embossments 30 at the correct position, for example coat of arms or other emblems. The embossing unit 41 consists essentially of two interacting embossing rollers 42, 43, between which the material web 19 runs.

The ready to use emerging from the cutting unit 31 Blanks 10 are collected to form stacks of blanks 23. For this purpose, the cutting unit 31 a (horizontal) cutting path 44. This consists of a A plurality of pairs of rollers 45, which are used to transport the blanks 10 are driven in the transverse direction. The distances between the pairs of rollers 45 from each other are slightly smaller than the dimension the blanks 10 in the conveying direction.

Stackers 46, 47 are arranged in the region of the cutting station. These are containers open at the top and on the narrow sides, into which the blanks 10 can be fed in succession from above are. The blanks are opened in the stacker 46, 47, respectively one of the height adjustable support plate 48 stored. This is in accordance with the increasing height of the in the stacker 46, 47th formed blank stack 23 lowered. The support plate 48 enters the stacker 46, 47 through an open side. In In a lower position, the support plate is on the Height of a stack conveyor 49, a belt conveyor. In this the lower position of the support plate 48 is the blank stack 23 in the forklift 46, 47 completely. One over an open page in the Stacker 46, 47 entering slide 50 (Fig. 9) pushes the Blank stacks 23 from the stacker 46, 47 down to the stack conveyor 49th

In the present embodiment is between the stack conveyor 49 and the support plate 48 a fixed bridge plate 51 arranged. This extends in the amount of a funding strand of the stack conveyor 49. The support plate 48 is during the filling process of the stackers 46, 47 to the level of Bridge plate 51 lowered. When this position is reached the stack of blanks 23 is pushed off by the slide 50 over the bridge plate 51 to the stack conveyor 49.

The bridge plate 51 is the lower limit of a recess 63 in an upright support housing 64 of the cutting device 20. The blank stacks 23 are lying on the bridge plate 51 - Pushed through the recess 63 on the next the stacking conveyor 49 arranged in the support housing 64.

For inserting the blanks 10 into one or the other stacker 46, 47, guide elements are positioned in the region of the cutting path 44. These are pivotable guide plates 52, 53 over each stacker 46, 47. In an upward direction Inclination (stacker 46 in Fig. 7 and Fig. 8) are the incoming Cuts through the guide plate 52 in the assigned Stacker 46 passed. In a horizontal or downward slant directed position (stacker 47 in Fig. 7 and Fig. 8) the incoming blank 10 on the relevant stacker 46, 47 passed to the next stacker or to another organ. The guide plates 52, 53 are coaxial in the present case with a lower counter roller 54 of a pair of rollers 45 above of the respective truck 46, 47 stored, but independently of these counter-rollers 54 pivotable.

The cuts produced in the area of the cutting unit 31 10 are checked for correct training. To this The purpose is on the exit side of the cutting unit 31 Above the cutting path 44, a monitoring device for cuts 10 arranged. In the present case it is about a camera 55 which shows the blanks for correct printing and other details monitored. The camera 55 - or another monitoring body - controls the baffles 52, 53. A faulty blank 10 is cut through the blank 44 conveyed through and outside the area of the forklift 46, 47 discarded. In the embodiment shown such incorrect cuts are fed into a collecting container 56. This is designed as a tubular container with an entry slot 57 on the cutting path 44 facing Page. The collecting container 56 is via a suction pipe 58 connected to a vacuum source. In the collection container 56 - preferably a horizontal pipe section - entering Incorrect cuts are removed via the suction pipe 58.

The blank stacks 23 placed on the stack conveyor 49 become a vertical conveyor 59 in the area of the cutting device 20 handed over. The vertical conveyor 59 takes each a blank stack 23 on a platform 60. By moving up the same is the blank stack 23 on the Level of the horizontal conveyor 24 raised and handed over to this. The horizontal conveyor 24 extends in an elevated manner Level. The blank stacks 23 are from the horizontal conveyor 24 a blank magazine in the area of the packaging machine 22 fed.

A special feature of the cutting device 20 is that by the wound shape of the material web 19, that is, by the Bobbin 21, 26 given curvature in the area of the blanks 10 recognized and appropriately balanced, so that flat blanks 10 are manufactured. For this purpose, the Material web 19 after being pulled off the reel 21 or 26 in deformed sense before the material web 19 in the Cutting unit 31 arrives.

For this purpose, the material web - after the Splice unit 28 - passed over a molding unit 65. This consists of two fixed deflection rollers 66 and 67 and one arranged between them forming roll 68. The latter is arranged that the material web running over the forming roller 68 deformed against the curvature given by the reels 21, 26 becomes.

The degree or intensity of the counter-deformation of the material web 19 is changeable, in accordance with the present Deformation of the material web 19. For this purpose via suitable, known sensors the diameter of each running bobbin 21 sampled and then the counter-deformation controlled. With increasing consumption of the bobbin 21, the Material web 19 on a stronger deformation. Is accordingly the shaping roller 68 is adjustable relative to the deflection rollers 66, 67, by moving up and down. The recognizable in Fig. 5 the upper dashed position causes a small counter-deformation. The lower position shown causes a stronger one or maximum counter-deformation of the material web 19.

A modified method or another execution of a Cutting device 20 is shown in FIGS. 10 to 14. at this solution concept in the area of a cutting unit 69 not individual blanks 10 made. Rather one occurs still connected cutting path 70 from the cutting unit 69 out. This cutting path 70 is in accordance with EP 291 692 or similarly trained. The blanks 10 are in the area an (incomplete) separating cut 32 connected to one another, namely through several remaining connections 71. These are around thin or narrow material webs, which are replaced by appropriate Interruptions of the separating cut 32 arise. The Residual connections 71 can ensure a coherent Cutting web 70 in a suitable manner over the length of the blanks 10 or the width of the blank web 70 distributed his. Otherwise, the cutting web 70 is produced as the blanks 10 in the previous embodiment. This applies in particular to the printing, embossing and scoring and die cuts.

The coherent cutting web 70 is separated by a cutting unit 72 passed through. In its area, the individual Blanks 10 separated from the blank web 70, wherein the remaining connections 71 are severed by Cutting or tearing. In the present embodiment are not individual blanks 10 from the blank web 70 divided, but each two still related blanks 10, i.e. a pair of blanks 73.

These cutting units, that is, cutting pairs 73, are made by a corresponding conveyor of the packaging machine 22 fed. In the area of the same are the cuts of the cut pairs 73 by tearing, shearing or separating from each other divided and immediately pockets of a folding turret 74 fed. To this extent, this principle of solution corresponds EP 312 877.

In the present embodiment, the cutting path 70 inserted into a web memory 75. Within it becomes a memory by zigzag folding of the blank sheet 70 formed, the folding in each case in the area the remaining connections 71. The zigzag-shaped web store is between (upper and lower) storage tapes 76, 77 formed. The web memory 75 is reduced in that the Cutting web 70 on an open side from the area of Storage tapes 76, 77 pulled out and returned to a stretched position by a pair of pull rollers 78.

On the entry side of the web storage 75 or the storage tapes 76, 77 there is an organ for forming the zigzag shape the cutting path 70. These are guide rollers 79, 80. Regarding this detail as well as regarding the design of the web store 75 is on EP 391 118 referenced.

The blanks 10 or the blank pairs 73 are in the area of the separating unit 72 by a tearing process from the blank web 70 separated. For this purpose, two are interacting Separating rollers 81, 82 are provided. These are turning driven, and at a higher speed than that Draw rollers 78. These therefore hold the following cutting path 70 firmly if the with radially projecting segments 83 equipped separating rollers 81, 82 with increased rotational speed the respective front blank 10 or the front blank pair 73 with the segments 83 and from the cutting path Detach 70.

The blanks 10 or pairs of blanks 73 become a cross conveyor 84 passed, the pair of blanks 73 in the described Way to the packaging machine 22nd

The present exemplary embodiment of the cutting device 20 is also with regard to the arrangement of the bobbin 21 and the replacement bobbin 26 designed differently. As a supporting element for the bobbins 21, 26 is a rocker 85. At the ends of each a bobbin 21, 26 rotatably mounted, between each other opposite support bodies 86, 87. These are conical, cone-like organs with a partial area in a center opening 88 of the bobbin 21, 26 enter. The supporting body 86, 87 are rotatably supported and are under pressure or in the central openings 88. The rocker 85 consists of two Swing arm 89, 90, at the ends of the support body 86, 87 attached are.

The (double-armed) rocker 85 is rotatable on a portal-like Support frame 91 stored. A pivot bearing 92 is in the Area of upright supports 93 of the support frame 91. This consists of spaced-apart support portals, so that on two opposite supports 93 each a pivot bearing 92 is formed for each swing arm 89, 90 is. A centrally positioned motor 94 is used for the rotary drive the rocker 85, such that the upper bobbin is active from which the material web 21 is withdrawn.

Further details of the device are analogous to the previous one Embodiment formed. This is especially true also for the molding unit 65. This is in the conveying direction a web link 95 arranged upstream to compensate for web tensions.

In the embodiment according to FIG. 10 ff Printing 29 and / or embossing 30 may be otherwise applied or in the area of an appropriately trained cutting unit 69th

The device described is also for the manufacture and Processing of other embodiments of blanks or Packs suitable. Furthermore, the material web can be used for production the cuts are prepared externally in different ways his. However, the ability to wind the material web must be guaranteed his.

LIST OF REFERENCE NUMBERS

10

cut

11

box part

12

cover

13

closing edge

14

Lid inner tab

15

closing edge

16

longitudinal fold

17

transverse fold

18

chad

19

web

20

cutting device

21

reel

22

packaging machine

23

blank stacks

24

horizontal conveyor

25

supporting journal

26

replacement reel

27

supporting journal

28

Spliceaggregat

29

Oppression

30

embossing

31

cutting unit

32

separating cut

33

cutting unit

34

longitudinal section

35

longitudinal section

36

Stripper

37

Stripper

38

pressure unit

39

printing unit

40

supporting roll

41

embossing unit

42

embossing roller

43

embossing roller

44

blank path

45

roller pair

46

forklifts

47

forklifts

48

support plate

49

stackers

50

pusher

51

bridge plate

52

baffle

53

baffle

54

backing roll

55

camera

56

receptacle

57

entry slot

58

suction tube

59

vertical conveyor

60

platform

61

piece of material

62

piece of material

63

recess

64

support housing

65

shaping subassembly

66

deflecting

67

deflecting

68

forming roll

69

cutting unit

70

blank path

71

residual connection

72

separating unit

73

template pair

74

folding turret

75

web store

76

storage tape

77

storage tape

78

pulling roller

79

guide roller

80

guide roller

81

separation roller

82

separation roller

83

segment

84

cross conveyor

85

wing

86

supporting body

87

supporting body

88

center opening

89

swing arm

90

swing arm

91

supporting frame

92

pivot bearing

93

support

94

engine

95

railway rocker

Claims (15)

1. Method of manufacturing cigarette packs of the hinge-lid type by the folding of blanks (10) made of thin cardboard in a packaging machine (22), the blanks (10) being severed from a material web (19) by stamping and further formed by folding tabs delimited by punched-out lines (18) as well as folding lines (16, 17) formed by embossing, characterized by the following features:

   a) the material web (19) is provided on one side with printing (29), namely during the formation of blanks (10) lying adjacent to one another, with printing (29) corresponding to the outer design of the hinge-lid pack,

   b) the printing (29) is applied so that the blanks (10) within the material web (19) are directed transversely to the longitudinal direction of same, such that the printing for a box part (11) and a lid (12) follow one another in the transverse direction of the material web (19),

   c) in a blanks unit (31) assigned to the packaging machine (22), embossments are first applied to the material web (19) to form the folding lines (16, 17) of the blanks (10) to be produced, namely longitudinal folding lines (16) running transverse to the longitudinal extent of the material web (19) and transverse folding lines (17) running in the direction of the material web (19),

   d) subsequently, punch cuts (18) are applied to the material web (19) to form folding tabs and simultaneously a respective transverse severing cut (32) is applied to sever each blank (10) from the material web (19),

   e) the material web (19) has a width that is slightly greater than the longitudinal dimension of the blanks (10), with the contours of the blanks (10) being produced by contoured longitudinal cuts (34, 35) at the two longitudinal edges of the material web (19) by severing the corresponding material pieces (61, 62) as the punch cuts (18) are being applied.
2. Method according to Claim 1, characterized in that the produced and conveyed-away blanks (10) are fed to a collecting station, within which piles of blanks (23) are formed from successively provided blanks (10) and said piles then being fed to the packaging machine (22).
3. Method according to Claim 1 or 2, characterized in that in the region of a shaping assembly (65) the material web (19), drawn from a reel (21, 26), is subjected to compensatory deformation (decurling) before it is introduced into the blanks unit (31) in order to eliminate any curvature of the material web (19) or of the blanks (10) caused by the coiling of the reels (21, 26).
4. Method according to Claim 1, characterized in that the blanks (10) can be severed from the blanks web (70) in pairs, namely as pairs of blanks (73), with the blanks pairs (73) being separated from one another when the blanks (10) are fed to the folding turret (74).
5. Device for manufacturing cigarette packs of the hinge-lid type from blanks (10) in a packaging machine (22), the blanks (10), consisting of thin cardboard, being produced by stamping or cutting and being provided at least on one side with printing (29), with folding lines (16, 17) formed by embossing and with punched-out lines (18) to delimit folding flaps, it being possible to sever the blanks (10) from a continuous material web (19) by severing cuts in the region of a blanks unit (31, 69) assigned to the packaging machine (22), characterized by the following features

   a) the material web (19) is provided with printing on one side, thereby forming adjacent blanks (10) having printing (29) that corresponds to the outer design of the hinge-lid pack,

   b) the printing (29) is applied such that the blanks (10) within the material web (19) are directed transverse to its longitudinal direction such that the printing for a box part (11) and a lid (12) follow one another in the transverse direction of the material web,

   c) the blanks unit (31, 69) has an embossing assembly (41) for the purpose of applying embossments to form the folding lines (16, 17) of the blanks to be produced, namely longitudinal folding lines (16) running transverse to the longitudinal extent of the material web (19) and transverse folding lines (17) running in the direction of the material web (19),

   d) the blanks unit (31, 69) has a cutting assembly (33) downstream of the embossing assembly (41) for the purpose of applying punch cuts (18) in the material web (19) to form folding tabs and simultaneously to apply a transverse severing cut (32) to separate each blank (10) from the material web (19),

   e) in the region of the blanks unit (31, 69) it is possible to produce at least side contours of the blanks (10) at the two longitudinal edges of the material web (19) by means of longitudinal cuts (34, 35) made as the punch cuts (18) are being applied, namely by severing the corresponding material pieces (61, 62) from the material web (19), whose width is slightly greater than the longitudinal extent of the blanks (10).
6. Device according to claim 5, characterized in that a printing assembly (38) is arranged upstream of the cutting assembly (33) of the blanks unit (31, 69) for the purpose of applying printing (29) to the material web (19) or to the blanks (10) in the region of the material web (19).
7. Device according to Claim 5, characterized in that the blanks unit (31, 69) is connected to the packaging machine (22) via a conveyor (24, 59) for piles of blanks.
8. Device according to Claim 5, characterized in that a shaping assembly (65) for the material web (19) is disposed upstream of the blanks unit (31, 69), the shaping assembly (65) having at least one shaping tool to remove deformation caused by the coiling of the material web (19) as a reel (21, 26).
9. Device according to Claim 9, characterized in that the shaping tool is a shaping roller (68) acting as a deflection roller for the material web (19), which can be adjusted in accordance with the deformation of the material web (19) by the reel (21, 26), in order to achieve varying compensatory shaping of the material web (19).
10. Device according to Claim 5, characterized in that a blanks path (44) is joined to the blanks unit (31, 69) in the region of which path the individual blanks (10) can be piled up into piles of blanks (23), specifically in shaft-like stackers (46, 47) which are open upwards.
11. Device according to Claim 10, characterized in that the blanks (10) can be transported in the region of the blanks path (44) by rollers or pairs of rollers (45) and can be conveyed by movable guide members, namely swivel-mounted guide plates (52, 53), into the respective stacker (46, 47).
12. Device according to Claim 10, characterized in that in the region of the blanks path (44), the blanks (10) may be monitored by monitoring devices to check that their configuration is correct, and in that faulty blanks (10) can be transported along the blanks path (44) to a collecting device for faulty blanks (10), namely to a collecting vessel (56) with a connecting extraction pipe (58) to extract faulty blanks.
13. Device according to Claim 10, characterized in that the piles of blanks (23) formed in the stackers (46, 47) can be pushed by a slide (50) from the respective stacker (46, 47) in a transverse direction to a conveyor for piles of blanks (49), which guides the piles of blanks (23) to a vertical conveyor (59) and then to horizontal conveyor (24).
14. Device according to Claim 5, characterized in that the blanks (10) can be separated in the region of the blanks unit (69) only partially from the material web (19), namely in such a way that the blanks (10) are held via residual connections (71) to a web of blanks (70), it being possible for individual blanks or pairs of blanks (73) in the region of a severance assembly (72) to be separated from the web of blanks (70) and fed to the packaging machine (22).
15. Device according to Claim 14, characterized in that pairs of blanks (73) can be led to the packaging machine (22) or a rotary folding unit (74) of same, and the pairs of blanks (73) can be separated into individual blanks (10) in the region of the packaging machine (22).

Images