EP1125843B1 - Device for handling blanks, especially banderoles for cigarette packages - Google Patents

Description

The invention relates to a device for handling blanks, in particular banderoles for cigarette packs, namely for storing and for feeding them to a processing unit or to one Pack of cigarettes, with an essentially upright shaft or magazine, in which the blanks are stacked on top of each other and on the underside Blanks can be removed and removed individually by a removal organ, the shaft or the magazine consisting of at least two one above the other arranged sub-shafts consists of a lower sock shaft and an upper collecting shaft, which is emptied from the base shaft removable and after filling with cut-outs can be placed on the base shaft is.

The handling of especially small, thin-walled blanks, such as (Tax) banderoles, coupons etc. for (cigarette) packs is in the Packaging technology problematic because of the high working speed of the Packaging machines. Such blanks, in particular banderoles, are in practice mainly prepared outside the packaging machine, namely cut and stacked in an upright, shaft-like magazine entered. This will be the blanks on the bottom one after the other removed and fed to the packs.

No. 3,929,326 describes a device for handling banderoles, Coupons and the like are known, being a magazine for such blanks is formed in two parts. The two parts together form a shaft, in which the blanks are kept ready. The cuts are made to the magazine taken from the lower, stationary part of the shaft. The feeding of the Cuts are made by replacing the upper, empty part of the magazine against a magazine filled with blanks. The generic term of Claim 1 corresponds to this prior art.

The invention has for its object the performance of a device to store and handle such blanks and to enlarge the Improve handling safety.

To achieve this object, the device according to the invention is thereby characterized in that for the removal of the blanks from the supply shaft or an endless conveyor is provided in the base shaft, which extends into the area of the storage chute or the base chute extends such that the Cuttings partially rest on this, with the endless conveyor for removal the blanks have an increased coefficient of friction. That way you can the blanks in a simple manner with high processing speed Magazine can be removed.

Another special feature concerns the increase in capacity the cutting magazine by arranging several partial shafts, namely storage chutes on an endless conveyor, in particular on the outer circumference of a rotating carousel. Filled with blanks Shafts or storage shafts are closed one after the other brought to a transfer station or in a position above a base shaft. The storage shaft in question is included connected to the base shaft. After emptying the carousel rotated one bar. The storage shafts can be in easier Removed from the carousel or attached to it become.

The spatial positioning is also of particular importance of the large-volume blank magazine formed by the supply shafts at a distance from a processing station for the blanks. The blank magazine, especially that with storage shafts equipped carousel, is on one for loading favorable, freely accessible position of the packaging machine housed, especially next to the side Machine. The blanks are transferred from this loading station a longer conveying path, namely via a blank conveyor, transported to the processing area, especially in the Area of a drying revolver for attaching the blanks or banderoles on the packs.

Finally, an extraction device, namely a slide, is important. with which the individual cuts in the area of the processing station be taken from a transfer shaft.

Fig. 1

eine Verpackungsmaschine in stark vereinfachter Draufsicht,

Fig. 2

die Vorrichtung zum Handhaben von Zuschnitten in Seitenansicht, teilweise geschnitten,

Fig. 3

eine Einzelheit der Vorrichtung gemäß Fig. 2, nämlich ein (Magazin-)Karussell in Draufsicht,

Fig. 4

ein Detail 1 der Vorrichtung gemäß Fig. 3 in einem Vertikalschnitt, bei vergrößertem Maßstab,

Fig. 5

eine weitere Einzelheit der Vorrichtung gemäß Fig. 2, nämlich eine Entnahmevorrichtung für Zuschnitte aus einem Schacht, in Seitenansicht, teilweise im Vertikalschnitt, vergrößert,

Fig. 6

die Vorrichtung gemäß Fig. 5 in einer Querschnittsdarstellung in der Schnittebene VI-VI der Fig. 5,

Fig. 7

einen unteren Teil eines Zuschnittschachts, nämlich einen Sockelschacht, in perspektivischer Darstellung. in vergrößertem Maßstab,

Fig. 8

eine Übergabestation für Zuschnitte an eine Verarbeitungsvorrichtung bzw. an Packungen,

Fig. 9

eine Einzelheit der Vorrichtung gemäß Fig. 7, nämlich ein Entnahmeorgan für Zuschnitte in vergrößertem Maßstab.

Fig. 10

das Entnahmeorgan als Einzelheit in perspektivischer Darstellung, nochmals vergrößert.

Further special features and characteristics of the invention are explained in more detail below on the basis of exemplary embodiments or details of the device. It shows:

Fig. 1

a packaging machine in a greatly simplified top view,

Fig. 2

the device for handling blanks in side view, partially cut,

Fig. 3

2 shows a detail of the device according to FIG. 2, namely a (magazine) carousel in plan view,

Fig. 4

3 shows a detail 1 of the device according to FIG. 3 in a vertical section, on an enlarged scale,

Fig. 5

2 shows a further detail of the device according to FIG. 2, namely a removal device for blanks from a shaft, in a side view, partly in a vertical section,

Fig. 6

5 in a cross-sectional representation in the sectional plane VI-VI of FIG. 5,

Fig. 7

a lower part of a cutting shaft, namely a base shaft, in perspective. on an enlarged scale,

Fig. 8

a transfer station for blanks to a processing device or to packages,

Fig. 9

a detail of the device of FIG. 7, namely a removal device for blanks on an enlarged scale.

Fig. 10

the removal organ as a detail in perspective, enlarged again.

Deal with the devices shown in the drawings deal with the handling of small blanks 10, namely in particular (tax) banderoles of paper for cigarette packs 11th

In Fig. 1 is a packaging machine as an application example shown for the manufacture of cigarette packs 11 of the type Soft-cup. Central organ of the packaging machine shown in plan view is a folding turret 12 on the front of the Packaging machine. Opposite, namely on the back a device for material supply is shown. bobbins 13, 14 for inner blanks (tin foil) and outer blanks (Paper) are arranged in magazines. Each from one of the Bobbin 13, 14 is a web of material from the corresponding Packaging material removed and fed to cutting organs, Separate the blanks from the material webs and the folding turret 12 feed.

The largely finished cigarette packs 11 will following the folding turret 12, a dry turret 15 fed. The band or the blank is in its area 10 applied to the (cigarette) pack 11, namely usually in the area of an end face 16 (FIG. 8).

The supply of the packaging machine is special solved with the blanks 10 or banderoles. On one of the Processing station - drying turret 15 - distant Position is a loading station 17 formed with a blank supply high capacity. The loading station 17 is positioned that easy access is possible without Machine operation disruption. In the present case is therefore the loading station 17 on the side next to the packaging machine arranged. The blanks 10 are from the loading station 17 transported over a long way, by a blank conveyor 18 to one above the drying turret 15 arranged transfer station 19th

The handling of the blanks 10 or banderoles takes place under Use of manholes positioned essentially upright as a magazine for the temporary recording of the blanks 10. These are positioned one above the other in the shafts moved down under its own weight. On the lower part The blanks 10 are removed from the open side and conveyed away.

In the loading station 17 there is a supply unit 20 for blanks 10 formed, with a plurality of storage shafts 21. These each contain a large number of one above the other arranged blanks 10. The supply shafts 21 are arranged on an endless conveyor, namely on one Carousel 22. This conveys the supply shafts 21 one after the other in the area of a removal station 23. In its area the blanks 10 are removed from the storage chutes 21 below and transported away by the blank conveyor 18.

The carousel 22 as a holder for the storage shafts 21 is in trained in a special way. Each supply shaft 21 exists from (narrower) side walls 24, one facing the carousel 22 Inner wall 25 and an opposite outer wall 26. The latter consists of two legs on the edge, between which a free strip-shaped opening 27 is defined (Fig. 6). The top of the storage chutes 21 is with a top wall 28 closed.

The storage shafts 21 are with the (wider) inner wall 25 detachably held on the carousel 22. To this end, is about two connections an upright retaining web 29 on the supply shaft 21 attached at a distance from the inner wall 25. The landing stage 29 is placed in a on the outer edge of the carousel 22 Guide 30 inserted with an upright slot.

The carousel 22 consists essentially of two in the axial Distance from each other, namely one (upper) Holding plate 31 and a support plate 32. The brackets or guides 30 are arranged on the holding plate 31. With a lower support member is the supply shaft 21 or its Support web 29 supported on the support plate 32. It is about thereby about a support roller 33 with a horizontal axis of rotation. The Support plate 32 of the carousel 22 is fixed. while the holding plate 31 rotates in cycles. When turning the support roller 33 runs on the support plate 32 at the edge from.

The support plate 32 is also in the region of the removal station 23 a recess 34 provided. In this area the support roller 33 held by another support member with a deeper one lying support level. It is a U-shaped one Holder 35, which is fixedly positioned and a lower one Carrying leg 36 has. Its support surface for the support roller 33 lies lower than the running plane of the support plate 32, so that the supply shafts 21 in the removal station 23 have a corresponding one Execute downward movement.

The storage shafts 21 are in a special way, namely in two parts, trained to rational loading and unloading to ensure the blanks 10. The storage shaft 21 exists from an upper movable shaft part, namely one Collecting shaft 37 and a (much smaller) lower one Base shaft 38. The latter is fixed in the area of the removal station 23 positioned. The one filled with blanks 10 Collecting shaft 37 is fed to the removal station 23 and in whose area is placed on the base shaft 38 by downward movement of the collecting shaft 37. The collecting shaft 37 is open at the bottom. The blanks 10 are supported - temporarily a closure member, namely on a slide plate 39. This is in the area of the removal station 23 by an actuator pulled out of the closed position into an open position (dash-dotted lines in Fig. 5). The collecting shaft 37 is therefore open at the bottom. The stack of blanks 10 falls as a result Own weight down and unites with one Remaining stock 40 of blanks 10 in the base shaft 38.

Bottom of the collecting shaft 37 and top of the base shaft 38 are designed in a special way to form a positive To ensure connection of these two sub-shafts. The lower or upper edge of the shaft walls is with Protrusions 41 and corresponding recesses 42 are provided. The upper and lower projections 41 and depressions 42 correspond with each other in terms of size, shape and positioning, so that the upper collecting shaft 37 is positive and centering is placed on the base shaft 38. Through the Jumps and jumps are guaranteed that no continuous, straight or horizontal connecting edge between the manhole parts that lead to a snagging of the could lead to blanks 10 moving downwards.

The filling of the storage chutes 21 or the upper parts thereof (Collecting shaft 37) proceeds in such a way that with reverse positioning the blanks 10 in stacks the upward (lower) open side is inserted. The upper cover wall 28 serves as the floor. After filling the collecting shaft 37, the slide plate 39 in the Bring closed position and the collecting shaft 37 in reverse Position attached to the carousel 22.

A special process is the removal of the blanks 10 from the supply shaft 21 in the area of the removal station 23 and the Removal of the same. The blank conveyor 18 consists of two endless conveyors, namely a lower belt conveyor 43 and an upper belt conveyor 44. The lower belt conveyor 43 extends itself with an upper conveyor run 45 into the area below the base shaft 38, which is open at the bottom. The upper one Belt conveyor 44 serves as an upper counter-holder during the conveyor line for fixing the blanks 10 on the belt conveyor 43. At least the lower belt conveyor 43 consists of a material or surface with a high coefficient of friction, for example made of silicone, for safe transport and guidance to ensure the blanks 10.

The belts of the belt conveyors 43, 44 are significantly smaller Width as the dimension or length of the (rectangular) blanks 10. These lie transversely on the longitudinal extension Belt conveyor 43. Side cutting legs 46 protrude beyond the Belt conveyor 43 or its conveyor run 45 and are during the removal phase from the base shaft 38 slightly downwards angled (Fig. 6, Fig. 7). During the further transport phase the blanks sweep in the area of the blank conveyor 18 10 automatically in a stretched position.

Carrying the blanks 10 by the lower belt conveyor 43 is due to a special design of the base shaft 38 guaranteed. Its front wall 47 is designed as a molded body. The relatively thick front wall 47 forms below an arcuate or laterally angled outlet end, which ends immediately above the conveyor strand 45. In this area guide surfaces 48 are defined form two downward facing partial areas. By the blanks 10 captured in the conveying strand 45 are in the passage through a slot 49 formed by the front wall 47 above the conveyor strand 45 into the shape according to FIG. 6, FIG. 7 moved with cutting legs angled downward 46. Thereby a stable shape of the blanks 10 results which is guaranteed to be taken along. Subsequent cuts 10 are retained by the shape of the slot 49 before they get into the same area. By training the Belt 43 as a friction belt is only the lower blank 10 taken away and transported away under deformation. The next, subsequent blank 10 is from the belt conveyor 43 recorded and also taken away as soon as a sufficient Surface rests on the conveyor strand 45. That’s what happens for a scale-like positioning of the blanks 10 mutual partial coverage.

The conveyor dreams of the belt conveyor 43. 44 can in the range Conveyor line resiliently against one another by corresponding pressing elements lie.

The transfer station 19, in the area of which the blanks 10 are the packs 11 are handed over, is also with a shaft-shaped magazine equipped for the blanks, namely with a transfer shaft 50. This is analogous to the supply shaft 21 formed, namely through a front wall 51 a rear wall 52 and delimited by side walls 53, 54. The a side wall 54 consists of two wall legs. the one Limit the middle, strip-shaped opening.

The transfer shaft 50 is positioned stationary and on the Open top. There are the blanks 10 from the blank conveyor 18 introduced. The blanks 10 are over a short distance in free movement promoted to the facility on the rear wall 52. The front wall 51 is opposite the upper one Edge of the transfer shaft 50 set back slightly down.

The transfer of the blanks 10 from the blank conveyor 18 to the Transfer shaft 50 is supported by a guide element 77, namely a downward inclined guide plate, which above the belt conveyor 43 in the region of a deflection it is positioned.

The transfer shaft 50 is shaped so that an upper vertical one Section is formed while a lower removal opening 55 lies in an inclined plane, accordingly a removal level for the blanks 10. The transfer shaft 50 has been bent several times for this purpose, in the present case Embodiment provided with two kinks 56, 57.

The transfer shaft 50 individually and at a distance from each other removed blanks 10 are fed to a transfer conveyor 58. This is designed and transported as a suction belt the blanks 10 until delivery to the cigarette packs 11, in the downward direction. The delivery of the cuts to the cigarette pack 11, namely on the end face 16, takes place by inserting the cigarette pack 11 into a holder, namely in an elongated pocket 59 of the drying revolver 15th

The blanks 10 are in the inclined removal plane reciprocable slider 60 the transfer shaft 50 taken. The slide 60 consists of a - in the discharge direction the blanks 10 - rear holding piece 61 and a support piece 62 lying in the area of the transfer shaft 50 for gripping and taking the blank 10. The holding piece 61 is connected to a gearbox, namely a parallelogram gearbox 63. This is reciprocated by a crank 64 driven here. The holding piece 61 is with two bearings 65. 66 with free ends of pivoted parallel Levers 67, 68 connected. Through the crank 64 a back and forth movement of the slide 60 in the inclined plane causes.

The support piece 62 has a front contact area for the blank 10 on. This investment area is in cross section trapezoidal shape with side sloping downwards. strip-shaped holding surfaces 69, 70. In this area Suction bores 71 arranged with a vacuum source are connected to the blanks 10 on lateral edges to capture. There is a peculiarity in the present example in that two (additional) suction bores 78 in each rear area of the slider 60 are arranged so that the blank 10 practically the full length on both sides is detected by suction bores 71, 78.

The slider 60 is in the retracted position the area with the holding surfaces 69, 70 below the transfer shaft 50. A lower blank 10 is captured and by the suction bores 71 on the inclined holding surfaces 69, 70 fixed. Lateral areas of the blank 10 are thereby accordingly angled downwards. In this arrangement the blank 10 by corresponding movement of the slide 60 taken and passed to first take-off rollers 72, 73. This grasp the blank 10 in a front area. The Slider 60 is fork-shaped in this area (Fig. 9), so that the take-off rollers 72, 73 the exposed area of the blank 10 can capture.

The blank 10 taken over by the slide 60 is then through Interaction with another take-off roller 74 deflected in a downward funding level. The one below the plane of movement of the blank 10 positioned take-off roller 73 acts accordingly with both the first take-off roller 72 and the second, staggered discharge roller 74 together to the discharge and cause redirection.

A special feature of the slide 60 is that in the area of the support piece 62 additional mechanical auxiliary elements for a secure take of the blank 10 even at high Conveying speeds are guaranteed. In the field of holding surfaces 69, 70 inclined obliquely downwards are drivers 75, 76 attached. These capture a rear transverse edge of the Cut 10 in the area of the holding surfaces 69, 70 and ensure safe taking and alignment of the blank 10, without referring to the next cut 10 in the transfer shaft 50 act. The drivers 75, 76 are for this Purpose positioned so that it is overall below the level of the stretched blank 10 or below the next one Blank 10 lie, so the blank 10 only in the area of the downwardly deformed side leg 46.

The device can also be designed in such a way that Loading station 17 and removal station 23 are merged. In this case, the transfer shaft 50 can enter the supply system be integrated with carousel 22 or the like. The Transfer shaft 50 is expediently second in this case trained as in connection with the storage shaft 21 described.

LIST OF REFERENCE NUMBERS

10

cut

11

cigarette pack

12

folding turret

13

reel

14

reel

15

drying turret

16

face

17

loading

18

blank conveyor

19

Transfer station

20

stocker

21

supply shaft

22

carousel

23

removal station

24

Side wall

25

inner wall

26

outer wall

27

opening

28

top wall

29

holding web

30

guide

31

Retaining plate

32

support plate

33

supporting role

34

recess

35

holder

36

supporting leg

37

collecting shaft

38

base shaft

39

slide plate

40

remaining stock

41

head Start

42

deepening

43

Belt conveyors

44

Belt conveyors

45

conveying

46

cut leg

47

front wall

48

guide surface

49

slot

50

Transfer shaft

51

front wall

52

rear wall

53

Side wall

54

Side wall

55

removal opening

56

kink

57

kink

58

Transfer conveyor

59

bag

60

pusher

61

holding piece

62

supporting piece

63

parallelogram

64

crank

65

camp

66

camp

67

lever

68

lever

69

holding surface

70

holding surface

71

suction bore

72

off roll

73

off roll

74

off roll

75

takeaway

76

takeaway

77

guide organ

78

suction bore

Claims (12)

1. Apparatus for handling blanks (10), in particular revenue stamps for cigarette packs (11), namely for supplying and for feeding the same to a processing subassembly or to a cigarette pack, having an essentially upright shaft or magazine in which the blanks (10) are stacked one above the other and on the underside of which the blanks (10) can be removed individually by a removal element and conveyed away, the shaft or magazine comprising at least two sub-shafts arranged one above the other, namely a bottom base shaft (38) and a top collecting shaft (37), which can be removed from the base shaft once it has been emptied and can be positioned on the base shaft once it has been filled with blanks, characterized in that an endless conveyor is provided for removing blanks (10) from the supply shaft (21) or from the base shaft (38), said conveyor extending into the region of the supply shaft (21) or base shaft (38) in such a manner that the blanks (10) partially lie on it, the endless conveyor exhibiting a heightened coefficient of friction in order to remove the blanks.
2. Apparatus according to Claim 1, characterized in that a plurality of top sub-shafts, namely collecting shafts (37), are provided on a conveyor, in particular on a rotatable carousel (22), and in that sub-shafts or collecting shafts (37) filled with blanks (10) can be fed to the fixed base shaft (38) and connected to the same.
3. Apparatus according to Claim 2, characterized in that the sub-shafts or collecting shafts (37) are arranged on the movable conveyor, in particular on the rotatable carousel (22), in a removable manner by way of a lateral securing means, each collecting shaft (37) being retained by a vertical guide with a lower, movable support, in particular a supporting roller (33), and in that, in the region of the base shaft (38), the respective collecting shaft (37) can be lowered, in particular by the supporting roller moving downwards to a correspondingly lower-level supporting plane.
4. Apparatus according to Claim 1 or one of the further Claims, characterized in that the collecting shaft (37) has a bottom closure element, in particular a movable slide plate (39) which, once the collecting shaft (37) has been set down on the base shaft (38), can be drawn back such that the collecting shaft (37) is free in the downward direction towards the base shaft.
5. Apparatus according to Claim 1 or one of the further Claims, characterized in that shaft walls which form the collecting shaft (37) have, on the bottom border, protrusions (41) and depressions (42) which correspond with corresponding protrusions (41) and depressions (42) of shaft walls of the base shaft (38), such that, when the collecting shaft (37) is positioned on the base shaft (38), the protrusions (41) and depressions (42) on both sides intermesh.
6. Apparatus according to Claim 1 or one of the further Claims, characterized in that the supply shafts (21), in particular in conjunction with a carousel (22), form a supply unit (20) which is positioned in the region of a packaging machine, at a distance from a processing station for the blanks (10), and in that the blanks (10) can be fed from the supply unit (20) to the processing station by a blank conveyor (18).
7. Apparatus according to Claim 6 or one of the further Claims, characterized in that a preferably upright transfer shaft (50) for accommodating a supply of blanks (10) is formed in the region of a removal station for feeding the blanks (10) to packs (11), and in that the blanks (10) can be fed to the transfer shaft (50) by the blank conveyor (18).
8. Apparatus according to Claim 1 or one of the further Claims, characterized in that the blanks (10) can be removed from the supply shaft (21) or the base shaft (38), in particular directly by the blank conveyor (18) which comprises a belt conveyor (43), the blanks (10) resting in a transversely directed position on a conveying strand (45) of the belt conveyor (43), and it being possible for the blanks to be removed from the supply shaft (21) or the base shaft (38), preferably by successive blanks (10) partially overlapping in an imbricated manner.
9. Apparatus according to Claim 7 or one of the further Claims, characterized in that the belt conveyor (43) of the blank conveyor (18) is assigned a top belt conveyor (44) as a counter-retaining means such that the blanks (10) can be transported between two preferably elastically abutting belt conveyors (43, 44).
10. Apparatus according to Claim 1 or one of the further Claims, characterized in that, in the region of the removal station (23), the blanks (10) can be removed from a shaft, namely transfer shaft (50), by a pusher (60), which can be moved back and forth on the underside of said transfer shaft and has lateral, strip-like retaining surfaces (69, 70) for border regions of the blank (10), suction bores (71, 78) being arranged in the region of the retaining surfaces (69, 70), said suction bores being distributed over the entire length of the retaining surfaces (69, 70) and/or over the entire length of abutment of the blank (10).
11. Apparatus according to Claim 10 or one of the further Claims, characterized in that the pusher (60), for removing the blanks (10) from the transfer shaft (50), has, in the region of lateral, beveled retaining surfaces (69, 70) for the blank (10), carry-along elements (75, 76) which butt against a trailing transverse edge of the blank (10), the carry-along elements (75, 76) being dimensioned and/or arranged such that, during the pushing-out movement of a blank (10), they extend beneath the plane of a following blank (10) located above.
12. Apparatus according to Claim 1 or one of the further Claims, characterized in that the blanks (10) removed from a shaft, in particular transfer shaft (50), following the latter can be gripped by a conveyor which deflects the blank (10) into a vertical conveying plane, preferably by a first pair of drawing-off rollers (72, 73) and an adjoining drawing-off roller (74), which interacts with the deflection-forming drawing-off roller (73).

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