WO2007087885A1

WO2007087885A1 - Apparatus for transferring revenue seals onto packs

Info

Publication number: WO2007087885A1
Application number: PCT/EP2006/012447
Authority: WO
Inventors: Thomas Häfker; Hans-J. Bretthauer; Heiko KÖHLER; Mathias Drewes
Original assignee: Focke & Co. (Gmbh & Co. Kg)
Priority date: 2006-01-12
Filing date: 2006-12-22
Publication date: 2007-08-09
Also published as: PL1971525T3; EP1971525A1; EP1971525B1; DE102006001800A1

Abstract

For the removal of blanks (11), in particular revenue seals for cigarette packs (10), from a blank magazine (21), a removal roll (28) having preferably two suction rollers (28, 29) which lie diametrically opposite one another for removing in each case one blank (11) is arranged below the magazine (21). The suction rollers (28, 29) are moved rotationally via a special planetary gear mechanism, to be precise at a rotational speed which corresponds firstly to the removal of a blank (11) and secondly to the transfer to a discharging element.

Description

Device for transferring banderols onto packages

description

The invention relates to a device for removing blanks, in particular banderoles, from a blank stack and for transfer to cuboidal packages in particular, with a removal member with rotatable removal rollers for detecting a respective lower blank and for transferring the blank to a blank or Banderolenförderer for hanging up on the packs.

The handling of blanks consisting in particular of thin paper is a particular problem in packaging technology. In the foreground is the supply of tax or closure banderoles to a cigarette pack. But other blanks, namely packaging, coupons, etc. are supplied to the packs and attach to predominantly upward packing surfaces.

The blanks or banderoles can be taken individually from a magazine with at least one stack of blanks at the bottom. Removal organs for the bands with rotating extraction organs are known (EP 0 034 790). Trained as a removal roller removal member is in the area of the bottom of the magazine back and forth. This form of movement is disadvantageous for machines with high performance.

The invention is therefore based on the object to propose a device for removing the blanks and for transferring the same to a blank conveyor or packages, are avoided in the clock-shaped, reciprocating movements.

To achieve this object, the device according to the invention is characterized by the following features: a) the removal rollers are rotatably arranged on the removal organ suction rollers formed with suction holes or suckers for detecting each blank, b) the removal member is designed as a particular continuously rotating removal roller, c) the rotations of the removal roller on the one hand and the suction rollers on the other hand are to take over a blank matched to each other at the bottom of the blank stack and for transferring the blank to the blank conveyor.

The heart of the device according to the invention is the removal and transport member, namely the removal roller with two diametrically opposite suction rollers. The latter are constantly driven in rotation with likewise continuous rotary drive of the removal roller. The peculiarity lies in the control of the rotational movement of the suction rollers, such that when removing a blank from the blank magazine on the one hand and when transferring to a blank conveyor, in particular to a laying roller, the respectively required rotational speed is given.

For this purpose, according to the invention a special, modified planetary gear is used with a controllable, namely rotatable sun gear and each suction roller zugeord- Neten planet wheels, which are connected via an endless organ, in particular via a common toothed belt with the sun gear in drive connection. The sun gear is controlled back and forth to create a compensating movement of the suction rollers when taking over and transferring the blanks.

The blank conveyor is designed, in particular, as a lay-on roller for transferring the blanks or bands to the top of packages during the transport thereof. In the range of rotation of the lay-up roll, necessary measures are taken on the blanks, ^' in particular embossing or creasing, perforations and glue applied to bands.

Other features of the invention relate to the drive of the removal roller and the lay-up roller. Further details of the device according to the invention are explained below with reference to the drawings. It shows:

1 shows a cigarette pack of the type folding box with banderole in a perspective view,

Fig. 2 also a folding box with arranged exclusively on the back

3 shows a section of a packaging machine with banding unit in a schematic side view, FIG. 4 shows the banding unit in a horizontal section of the sectional plane IV-IV in FIG. 3, on an enlarged scale, FIG. 5 shows the banding unit in side view or in FIG partly in vertical section in the

Section plane V-V of Fig. 4,

6 shows a transmission for the drive of organs of the banding unit in a sectional or sight plane Vl-Vl of Fig. 4,

7 shows a representation corresponding to FIG. 7 with a changed position of suction rollers corresponding to sectional or sight plane VIII in FIG. 4, FIG. 9 shows a detail in the case of FIG Taking a blank from a blank magazine corresponding to detail Xl in Fig. 7, on an enlarged scale, Fig. 10 shows a detail X of Fig. 8, namely the transfer of a banderole / blank to a blank conveyor.

The illustrated example of application relates to (cigarette) packs 10 in the form of a folding box. On the package 10 blanks 1 1 are to be attached, namely control or closure bands in various designs and positioning. In the case of the folding box consisting of a lower box part 12 and a cover 13, the band or blank 11 is attached to a back and / or side surface of the pack 10. In the embodiment according to FIG. 1, the band 11 extends predominantly on the back of the package and additionally with a leg 26 on a narrow side surface of the package. In the region of the side surface, an obliquely directed perforation 15 is mounted, which extends along an extending between the box part 12 and cover 13 closing edge 14 of the pack. Additionally or alternatively, the blank 11 may have an embossing or a grooving in the region of a joint 16 between the box part 12 and the cover 13.

The banderoles or blanks 11 are placed during the transport of the packs 10 by a preferably continuously running pack conveyor 17 on an upwardly directed pack side, in particular on the back, in accordance with the desired position shown in FIG. 1 or FIG an integrated into a packaging machine banding unit 18, which is positioned as a separate unit in the region of a transport path for the packs 10. Subsequent to the banding unit 18, the packs 10 reach the area of a folding turret 19 for attaching an outer wrapping of foil to the pack 10.

The banding unit 18 contains a supply of banderoles or blanks 11, namely a blank stack 20 in a shaft-shaped magazine 21. At the bottom thereof, the blanks 11 are removed individually and successively. For this purpose, a special removal member 22 is provided. The blanks 11 are transferred to an intermediate conveyor, namely to a lay-up roller 23. This transports the blanks 11 to the packs 10. During the further transport of the blank 11 provided with packs 10 reach this in the region of a Andrückorgans 24. This consists of a belt, especially with silicone coating. A lower, horizontal run 25 of the pressure belt abuts against the top side of the packs 10 and fixes the blanks 11, which are provided in particular with glue. In the region of the pressure element 24, the leg 26 of a band extending over the corner (FIG. 1) can also be folded ,

This consists of a rotationally driven carrier, namely a removal roller 27 and a plurality of holding members for detecting and transporting each a blank 11. These are formed as removal or suction rollers 28, 29 and axially parallel to the removal roller 27 rotationally this attached. Specifically, in the embodiment, two diametrically opposite suction rollers 28, 29 are mounted within the contour or within the construction area of the removal roller 27 in a respective recess 30. The construction of the removal roller 27 encloses the suction rollers 28, 29 largely. Only a partial rich of the circumference of the suction rollers 28, 29 projects outwardly beyond the contour of the removal roller 27 away.

The unit of removal roller 27 and suction rollers 28, 29 is rotationally (continuously) driven, in the conveying direction of the blanks 11 after removal from the magazine 21. Referring to FIG. 7, the removal roller 27 rotates clockwise in accordance with arrow 31. The rotary movement is transmitted by a main shaft 32 to the removal roller 27. The main shaft 32 designed as a hollow shaft is connected to a housing 33 of the removal roller 27.

The suction rollers 28, 29 are in turn rotatably mounted in or on the removal roller 27. The rotational movement is transmitted to the rollers 28, 29 via a roller shaft 34 assigned to each suction roller 28, 29 within the housing 33. The suction rollers 28, 29 are driven at a different rotational speed during one revolution of the removal roller 27. When a blank 11 is removed from the blank stack 20 (FIG. 9), the suction roll 28, 29 is moved at a relatively lower circumferential speed, since the blank 10 is taken over from the stationary position. When transferring to a moving object, namely during the transfer of the blank 10 to the rotationally driven lay-on roller 23 (FIG. 10), the suction roller 28, 29 is driven at an unchanged rotational direction at an increased peripheral speed, namely at about the same peripheral speed (and direction of movement ) as the receiving organ, so that the transmission is slip-free.

The removal roller 27 and the lay-up roller 23 are arranged in a particular relative position to each other. The magazine 21 is located substantially above the removal roller 27, so that the blank 11 is taken over by the respective suction roller 28, 29 located below the magazine 21. In this case, the shape of the removal roller 27 and the housing 23 by circumferentially facing projections 35 a support of the blank stack 20 within the magazine 21. The suction roller 28, 29 is in the acquisition of the blank 11 in the direction of rotation of the removal roller 27 opposite circumferential direction - here counterclockwise - moves so that the blank 11 is removed in a progressive rolling movement. The rotational movement of the suction roller 28, 29 is then continued, so that the blank 1 1 performs a full revolution with the suction roller 28, 29, during a rotation the removal roller 27 of about 90 °, namely to the transfer position adjacent to the lay-up roller 23 (Fig. 10). This rotates with the same direction of rotation as the removal roller 27. The rotational movement of the suction roller 28, 29 follows the circumferential movement of the lay-up roller 23, so that in the same direction movement of the blank 1 1 is transmitted to the lay-on roller 23 in progressive rolling. The subsequent rotational movement of the suction roller 28, 29 is controlled so that an organ for detecting the next blank 11 on reaching the takeover position the blank 11 or blank stack 20 is facing.

The blanks 1 1 are detected and held by suction air from the suction rollers 28, 29, in a rear region in the conveying direction of the blank 1 1 (FIG. 9). At the periphery of the suction rollers 28, 29 suction members are attached for this purpose. Specifically, a single sucker 36 is arranged on the suction roller 28, 29, such that a suction surface of the sucker 36 protrudes beyond the contour of the suction roller 28, 29 for detecting the blank 11. The sucker 36 is provided with a radially directed suction bore 37 an annular suction channel 38 within the suction roller 28, 29 is connected. The suction channel 38 is suitably connected via channels to a common vacuum system, via a central suction head 39 on or in the housing 33. The fixed suction head 39 is connected via a line 40 to a vacuum source.

Another special feature is a gear for the rotational movement of the removal member 22 and the suction rollers 28, 29. It is a planetary gear 41 in a special design. A sun gear 42 is mounted centrally within the removal roller 27. Each suction roller 28, 29 is a pinion 43, 44 assigned as a planetary gear. The ridges 43, 44 are disposed on the respective roller shaft 34 in the region of the sun gear 42. The planet gears, namely pinions 43, 44, are not directly engaged with the sun gear 42, but spaced therefrom. The geared connection is made by an envelope drive, here by an endless toothed belt 45, which surrounds the pinion 43, 44 in a partial region and meshes with the sun gear 42 at an upper and lower region. Upon rotation of the removal roller 27 and the housing 33 relative to the sun gear 42 corresponding rotational movements are transmitted to the pinion 43, 44 through the toothed belt 45. For the operation of the removal roller 27 is important that the sun gear 42 performs control movements to produce when taking a blank 11 on the one hand and in the transmission of a blank 11 on the other hand for the active suction roller 28, 29, the respectively required rotational or circumferential movement. For this purpose, the sun gear 42 is rotatable within the housing 23, in accordance with arrow 46 in the alternating direction of rotation. For the specific case, the sun gear 42 is rotated during the removal of a blank from the magazine 21 (FIG. 9) at a relatively low speed in the direction of rotation of the removal roller 27, ie in the clockwise direction. In the transfer position, so when transferring the blank 11 to the lay-on roller 23, the sun gear 42 is rotated in the opposite direction, ie against the transport direction, and at a relatively greater speed. The amplitude of the rotational movements is dependent on the duration of the acquisition or transfer phase and is z. B. 20 ° to 30 °.

The control movements are transmitted to the sun gear 42 through a central control shaft 47. The control shaft 47 is guided within the formed as a hollow shaft main shaft 32 and connected to a control gear 48. This is housed in a common gear housing 49 together with other drive units for lay-up roller 23, removal roller 27 and other movable organs.

Core of the control gear 48 is a control cam, which is mounted as a shaped control bar 50 on a rotatably driven control disc 51. The shape of the control bar 50 is scanned during the rotational movement of the control disk 51 by organs, namely by on both sides of the control bar 50 at this fitting touch rollers 52, 53. These are deflected sideways according to the shape of the control bar 50. This control movement is transmitted to a control lever 54. This in turn is connected via a coupling 55 with one end of a pivot lever 56 which is mounted on one end of the control shaft 47. Due to the movements of this control gear, reciprocating pivotal movements of the lever 56 are generated (Figure 6). The control bar 50 and the control disk 51 is assigned a drive wheel, namely a gear 57. This is moved by a toothed belt 58 by a common drive, namely by a drive motor 59, which is preferably designed as a servo motor. The caused by the control bar 50 movements are transmitted as reciprocating rotational movements on the sun gear 42 as a control movement for the additional overlapping rotary drive of the pinion 43, 44 and thus the suction rollers 28, 29. Direction and speed and characteristics of this additional control movement are of This is so formed that during a full revolution of the control disk 51 two working cycles are influenced, ie corresponding to a full rotation of the removal roller 27 with two suction rollers 28, 29th

The common drive motor 59 is engaged via a drive pinion 60 with a first transmission gear 61. On the shaft sits a drive wheel for the common toothed belt 58 of the overall transmission.

The toothed belt 58 drives directly a gear 63, which is connected to a shaft 64 for the rotary drive of the lay-up roller 23. The shaft 64 has a coupling 65.

The transmission according to FIG. 6 has drive wheels with drive shafts, which are assigned to machining devices in the region of the laying roller 23. These are the gears 66 and 67, which are indirectly driven by the common toothed belt 58, namely via an intermediate gear 68, which is in engagement with the two gears 66, 67. The intermediate gear 68 is connected to a toothed belt wheel 69 and driven by the toothed belt 58. Furthermore, an adjusting mechanism 70 is arranged on a shaft associated with the toothed belt wheel 69 for adjusting the toothed belt wheel 69 and thus of the idler gear 68 in the circumferential direction. The toothed belt 58 are also associated with guide wheels 84 and 85, the latter on the axis or shaft of the gear 66th

The laying roll 23 is formed in a special way. Between two spaced apart support disks 71, 72 are axially parallel support webs 73, 74. At these a holding member for a blank 11 is attached in each case. This is a holding segment 75 with a curved or circular surface-shaped holding surface 76 for the blank 11. In the region of this holding surface 76 open suction holes 77 for detecting and holding a blank 11. The holding segments 75 protrude in the circumferential direction over the contour of the lay-up roller 23 and the support disks 71, 72nd time. The suction air in the region of the holding surfaces 76 is controlled so that when passing a blank 11 through a suction roller 28, 29 whose suction air is switched off, while the suction air in the region of the suction holes 77 is effective. The retaining segments 75 also serve to deposit a blank 11 on the upwardly directed side of a pack 10, in a rolling movement (FIG. 7). In this process, the suction air in the region of several suction holes 77 is switched off one after the other.

The lay-up roller 23 are assigned in the present case several processing units. Following the takeover of a blank 11, it is conveyed into the area of a punching or cutting tool, namely in the region of a rotatingly movable knife roller 78. A radially directed knife 79 is mounted on a rotating support and, in the appropriate position, cuts the banderole or the blank 11 attaches. In the present case, the knife is formed so that it generates the oblique perforation 15. The knife roller 78 is driven by the gear via the gear 66.

In the direction of rotation of the lay-up roller 23 is followed by another processing member, namely an embossing tool with embossing roller 80 and embossing edge 81. The embossing roller 80 is in terms of the drive - by gear 67 - controlled so that offset in time to the knife 79 by the embossing edge 81 a grooving on the blank 11 is attached.

Subsequently, the blank 11 passes through the rotational movement of the laying roller 23 in the region of a glue unit 82. Through this - glue - glue is applied to the outwardly directed side of the blank 11. The blank 11 is then placed on the package with the glued side.

The above working members 78, 80 can be brought from the operative position to a neutral position, such as when bands are shown in FIG. 2 without processing used. In this case, an adjustment is made by operating a handwheel 83 shown schematically, in the area of the intermediate gear 68 via the adjusting mechanism 70, such that the gear designed as an intermediate 68 is adjusted by an angle. The drive for knife roller 78 and / or embossing roller 80 are maintained. However, the tools 79, 81 come outside the rich holding segments 75 effect and therefore remain without contact with a blank 1 1.

The device described is also suitable for the efficient attachment of coupons and other pack contents, in particular to cigarette packs.

LIST OF REFERENCE NUMBERS

10 pack 49 gearbox housing

11 Cut 50 Control ridge

12 box part 51 control disk

13 cover 52 feeler roller

14 closing edge 53 sensing roller

15 perforation 54 control lever

16 joint 55 coupling

17 Packing conveyor 56 Swiveling lever

18 Banding unit 57 Gear

19 Folding turret 58 Timing belt

20 blank stack 59 drive motor

21 Magazine 60 Drive pinion

22 removal element 61 transmission gear

23 Lay-on roller 62 Drive wheel

24 pressing member 63 gear

25 strand 64 wave

26 legs 65 coupling

27 removal roller 66 gear

28 Suction roller 67 Gear

29 Suction roller 68 Intermediate wheel

30 recess 69 toothed belt

31 arrow 70 actuating mechanism

32 Main shaft 71 Support disc

33 housing 72 carrier disc

34 roller shaft 73 supporting bridge

35 projection 74 support bar 6 suction cup 75 holding segment 7 suction bore 76 holding surface 8 suction channel 77 suction bore 9 suction head 78 knife roller 0 line 79 knife 1 planetary gear 80 embossing roller 2 sun wheel 81 embossing edge 3 pinion 82 glue aggregate 4 pinion 83 handwheel 5 toothed belt 6 arrow 7 control shaft 8 control gear

Claims

claims

1. Apparatus for removing blanks (11), in particular banderoles, from a blank stack (20) and for transfer to particular cuboidal packs (10) with a removal member with rotatable removal rollers for detecting a respective lower blank (11) and for transfer to a Blank conveyor or to a lay-on roller (23) for transferring the blanks (11) onto packs (10), characterized by the following features:

a) the removal rollers are arranged as suction rollers (28, 29) rotatably mounted on the removal member (22) and have suction holes or suckers (36) for detecting a blank (11), b) the removal member (22) is in particular continuously rotating removal roller (27) formed, c) the rotations of the removal roller (27) on the one hand and the suction rolls (28, 29) mounted on the other hand are for taking over a blank (11) on the underside of the blank stack (20) and for transferring the blank (1 1) to the

Blank conveyor or matched to the lay-on roller (23).

2. Apparatus according to claim 1, characterized by the following features:

a) on the removal member or on the removal roller (27) two diametrically opposed suction rollers (28, 29) are arranged, b) the respective suction roller (28, 29) after removal of a blank (11) from the blank stack (20) along a Conveyor line or rotation of the removal roller (27) by about 90 ° to a transfer station fed to transfer the blank to the lay-on roller (23).

3. Apparatus according to claim 1 or 2, characterized in that the suction rollers (28, 29) after taking over a blank (11) in the region of the blank stack (20). a complete revolution with the blank (11) performs until the transfer to the lay-on roller (23).

4. Apparatus according to claim 1 or one of the further claims, characterized in that the suction rollers (28, 29) are rotatable with one of the direction of rotation of the removal roller (27) opposite direction, such that when passing a blank (11) to the rotating driven lay-on roller (23) the direction of rotation of the suction roller (28, 29) on the one hand and the lay-on roller (23) are rectified on the other hand and have the same conveying speed.

5. Apparatus according to claim 1 or one of the further claims, characterized in that the suction rollers (28, 29) are always non-uniformly driven in the same direction, but with respect to the peripheral speed, such that the peripheral speed of the suction roller (28, 29) at takeover a blank (11) from the blank stack (20) is relatively lower and when transferring the blank (11) to the laying roller (23) is relatively higher, namely corresponding to the peripheral speed of the laying roller (23).

6. Apparatus according to claim 1 or one of the further claims, characterized in that the suction rollers (28, 29) by a special planetary gear

(41) are rotatable, in particular with a central, central sun gear (42) and each suction roller (28, 29) associated pinion (43, 44) as a planetary gear, wherein the distance from the circumference of the sun gear (42) mounted pinion (43, 44) by an intermediate gear, in particular by a toothed belt (45) under direction of rotation reversal by the sun gear (42) are rotatable.

7. Apparatus according to claim 6 or one of the further claims, characterized in that the pinions (43, 44) arranged as planet gears diametrically opposite each other with respect to the sun gear (42) and all the wheels of the planetary gear (41) through the endless toothed belt (45 ) are wrapped.

8. Apparatus according to claim 5 or one of the further claims, characterized in that the planetary gear (41) with respect to the adaptation of Circumferential speed of the suction rollers (28, 29) is controllable, in particular by corresponding rotational movement of the sun gear (42) in one or the other direction.

9. Apparatus according to claim 8 or one of the further claims, characterized in that the sun gear (42) on a controlled rotatable control shaft

(47) is mounted, the rotational movements of which is rotatable in accordance with controllable in the machine cycle control members, in particular via cam tracks with cam rollers.

10. The device according to claim 9 or one of the further claims, characterized in that the control shaft (47) by a on a control disc (51) arranged control bar (50) is controllable, wherein on the rotatable in the machine cycle control bar (50) touch rollers (52 , 53) which are attached to a via a transmission on the control shaft (47) acting control lever (54).

1 1. A device according to claim 1 or one of the further claims, characterized in that the suction rollers (28, 29) on the periphery holding members for detecting each of a blank (11), in particular at least one sucker (36) slightly above the circumference the removal roller (47) protrudes for detecting a blank (11).

12. The device according to claim 1 or one of the further claims, characterized in that the suction rollers (28, 29) are arranged substantially within the contour of the removal roller (27), in particular in a recess (30) of a housing (33) of the removal roller (30). 27), wherein the suction roller (28, 29) through the housing (33) to form projections (35) is enclosed except for an opening.

13. The device according to claim 1 or one of the further claims, characterized in that the support roller (23) on the circumference retaining segments (75) with outwardly projecting holding surfaces (76) for detecting a blank (10) and holding the same by means of suction holes (77 ).

14. The device according to claim 1 or one of the further claims, characterized in that in the range of movement of the lay-up roller (23) organs and units for processing the blanks (11) are stationarily positioned, in particular a Knife roller (78) with knife (79) for attaching a perforation (15) and / or an embossing roller (80) with embossing edge (71) for applying a grooving and / or a glue unit (82) for applying glue to a radially outward directed surface of the blank (11).

15. The apparatus of claim 1 or one of the further claims, characterized in that the removal roller (27) by a main shaft (32) is driven to rotate continuously, wherein the main shaft (32) is designed as a hollow shaft for receiving the central control shaft (47) for the sun wheel (42).

16. The apparatus of claim 1 or one of the further claims, characterized by a transmission in a common transmission housing (49), wherein the control gear (48) for the sun gear (42), the main shaft (32), the lay-up roller (23) and the These associated processing members (78, 80) of a common drive motor (59), in particular servomotor, via a toothed belt (58) are drivable.

17. The apparatus according to claim 16, characterized in that the processing units, namely the knife roller (78) and / or embossing roll (80), are movable except operating position, in particular by rotation of the gearbox in a Reiva- are movable, in which the tools, namely knife (79) and / or embossing edge (81) offset from the blanks (11) on the lay-on roller (23) are effective.