WO2008071265A1

WO2008071265A1 - Drying turret for cigarette packs

Info

Publication number: WO2008071265A1
Application number: PCT/EP2007/009547
Authority: WO
Inventors: Axel Leifheit
Original assignee: Focke & Co. (Gmbh & Co. Kg)
Priority date: 2006-12-13
Filing date: 2007-11-03
Publication date: 2008-06-19
Also published as: CN101557987B; CN101557987A; EP2094570B1; DE502007003631D1; EP2094570A1; ATE465948T1; JP5113187B2; DE102006059238A1; JP2010512287A

Abstract

In order to increase the capacity of a drying turret (13) for cigarette packs (10), units made up of a plurality of pockets (14, 15), which are moved alternately into a charging position and an emptying position, are arranged on the circumference. This increases the residence time of the packs (10) in the drying turret (13) in accordance with the number of pockets (14, 15) per unit.

Description

Dry revolver for cigarette packs

description

The invention relates to a conveyor for the transport of (cuboid) packs, in particular a drying turret for cigarette packs, with a plurality of pockets for receiving preferably a plurality of transversely to the transport direction closely juxtaposed packs, wherein in the region of a charging station each a pack by axially parallel displacement in a pocket on and at the same time on the opposite side of a pack from the pocket in question is pushed out.

The preferred field of application of the invention are dry turrets as an aggregate of a cigarette packaging machine. Following the folding process, the packs have glue flaps connected to each other by glue. The adhesive areas of the pack require adequate residence time or hardening of the glue to ensure a residence time in which the outer, cuboid shape of the pack is fixed. Drying turrets serve this purpose.

Dry revolver for cigarette packs are known in various designs. The dry turret according to DE 43 00 149 A1 is continuously rotatable. The arranged on the circumference, axially parallel pockets are designed to accommodate three packs. At one end, a pack is inserted into the bag and simultaneously pushed out a pack opposite.

In packaging machines with higher performance, the residence time of the cigarette packs in the conventional dry turrets is not sufficient to ensure stable glue connections of the folding flaps. The enlargement of the dimensions of such dry turrets is out of consideration for reasons of space. The invention is therefore an object of the invention to increase the capacity of particular dry revolvers for cigarette packs noticeably, without increasing the size and maintaining the usual manufacturing process.

To achieve this object, the conveyor or dry turret according to the invention is characterized in that the conveyor, in particular on the circumference of the dry turret movable, in particular rotatable units are arranged with at least two pockets by moving or by rotating the unit alternatively in an outwardly directed feed - Get or emptying position.

The trained especially as a dry turret conveyor therefore has units of two or more pockets, which are arranged on a pocket carrier such that by turning the unit relative to the continuously rotating dry turret successively the pockets of the unit are directed outward or in a position for the loading and / or unloading. Without increasing the size of the dry turret, the capacity is increased according to the number of pockets per unit. The packs remain in the forming pockets during a plurality of revolutions of the dry turret. The supply of the packages to the pockets and the removal are maintained in a conventional manner.

The rotation of the units by 180 ° (at two pockets per unit) or 120 ° (three pockets) is performed by a stationary actuating gear, in particular by a cam gear, with each revolution of the dry turret in a predetermined range of rotation.

Further details of the invention are particularly concerned with the design of the dry turret and the transmission. Embodiments of the invention are explained below with reference to the drawings. It shows:

Fig. 1 shows a detail of a packaging machine for cigarettes in a schematic

Side View,

2 shows a partial area of a dry turret as a detail of the packaging machine according to FIG. 1, on an enlarged scale, FIG. 3 shows a longitudinal section in the region of a pocket or pocket unit according to FIG

4 shows a cross section through a control gear for pockets or pocket units according to section plane IV-IV in Fig. 3, Fig. 5 shows a comparison with FIG. 4 offset in the axial direction cross-section in the area of

Stellgetriebes along sectional plane V-V of Fig. 3, Fig. 6 shows a cross-section or radial section through a pocket unit accordingly

Sectional plane Vl-Vl of Fig. 3, on an enlarged scale,

7 is a representation corresponding to FIG. 6 for another embodiment of a pocket unit,

Fig. 8 shows a detail of the actuating gear, namely a roller star, in view, Fig. 9 shows the detail of FIG. 8 in a transverse view.

The drawings are concerned with the handling and treatment of cuboidal packs 10, namely cigarette packs. Specifically, it is packs 10 in the execution as a soft cup. The packages 10 are manufactured in the region of a folding turret 11 and then taken over by an intermediate conveyor, namely a transfer turret 12, which transfers the packages 10 to another turret for curing glue connections of the packages 10, namely to a drying turret 13. This is in a special way educated.

The main purpose of the dry turret 13 is to accommodate a larger number of packages 10 during a longer residence time and to stabilize the cuboidal shape of the packages 10 while setting or drying glue compounds. The dry turret 13 is provided for this purpose with a plurality of pockets 14, 15, 16 at the periphery of the dry turret 13. The pockets 14..16 are arranged transversely to the direction of rotation of the dry turret 13, ie axially parallel. The pockets 14..16 are adapted to the format of the packs 10, namely channel-shaped with a rectangular cross-section corresponding to a bottom wall 17 and end wall 18 of the packs 10. Within a pocket 14..16 a row of packs 10 is created or maintained, with the packs 10 are directly adjacent to each other, namely with bottom wall 17 and end wall 18. The packs 10 are inserted individually via a feed opening 19 in the pocket 14..16. As a result of this movement, the row of packages in the pocket 14... 16 are displaced in their entirety, so that at the same time at an opposite outlet opening 20 a packs 10 from the respective bag 14..16 exits and can be removed, in particular to a packaging machine for wresting an outer film wrapping.

The dry turret 13 passes through several stations during the continuous rotary motion. In the area of a transfer station 21, the packages 10 are deposited by the transfer turret 12 adjacent to the charging opening 19 of the respective pocket 14. For this purpose, a directed onto the feed opening 19 support member is provided, namely a support plate 22. The transfer of a turret 12 to the subsequent turret 13 takes place here in the manner described in DE 43 00 149 A1.

The deposited on the support plate 22 pack 10 is inserted in continued rotation of the dry turret 13 by a slider 23 in the pocket 14..16. Each positioned on the outer periphery of the drying turret 13 bag 14..16 is associated with a slide 23 which rotates with the dry turret 13 and each by an actuating rod 24 is movable, namely in the direction of the bag 14..16 and back to a starting position. The support plate 22 is divided in the middle or provided with a slot for the passage of the centrally to the support plate 22 and the feed opening 19 arranged slide 23 and a bar connected to the actuating rod 24.

On the opposite side, namely in the region of the outlet opening 20, the packs emerging from the pocket 14, 16 are deposited on a platform 25. Here, the packings 10 completed with regard to the glue joints are removed and conveyed into a lock 26 (in particular faulty packs) or transferred to a discharge conveyor 27.

When inserting the packs 10 into the respective pockets 14, 15, 16, a (control or closure) band 28 is attached in the region of the end wall 18. This is held ready in front of the charging opening 19, such that the banderole 28, when inserted into the pocket 14, 15, 16, lies around the end wall 18 in a U-shape.

The packages 10 remain in accordance with the axial dimension of the pockets 14..16 during several revolutions of the dry turret 1 1 in the bag 14..16. To increase the residence time of the packages 10 in the pockets 14.16, without Modification of the dimensions, the pockets 14..16 are arranged in a special way on the dry turret 13. A plurality of pockets 14, 15, 16 form a unit which is designed such that one, the other or a third pocket 14, 15, 16 alternately enters the loading position, ie is positioned on the outer circumference of the folding turret 11. The belonging to a unit pockets 14. 15, 16 are arranged on a common carrier 29. This is movable, namely rotatably arranged on the outer circumference of the dry turret 13. This forms in a radial direction facing support webs 30, 31, the pivot bearing for the rotatable mounting of the carrier 29 at opposite ends. In which the outlet opening 20 associated support web 31 of the shaped body formed as a carrier 29 is rotatably mounted with a bearing pin 32. On the opposite side of the carrier 29, an actuating rod or actuating shaft 33 is mounted, which is rotatably mounted in the support web 30 and is rotatably movable by an actuating gear, wherein the unit of carrier 29 and pockets 14, 15, 16 is also rotated relative to Dry turret 13.

The pocket unit can be designed differently. A first embodiment consists of two pockets 14, 15 which are diametrically opposed to the common carrier 29. The carrier 29 or an imaginary axis of rotation thereof is arranged centrally between the pockets 14 and 15. By turning the unit or the carrier 29, the radially inward pocket 15 shown in FIG. 6 is moved exactly into the position of the pocket 14, that is to say on the outer region of the dry turret 13. The carrier 29 with the pockets 14, 15 is rotated by 180 °. Preferably, the procedure is such that, after each rotation of the folding turret 11, a change of position of the bags 14, 15 is carried out, so that they are alternately charged and emptied by a pack 10.

The pocket unit may have more than two pockets. In the embodiment according to FIG. 7, three pockets 14, 15, 16 are mounted at equal angular distances from one another on the common carrier 29. By turning the carrier 29 by 120 °, the pockets 14, 15, 16 pass successively into the radially outer loading position. The capacity of the dry turret 13 is doubled in the embodiment according to FIG. 6 and in the case of FIG. 7 it is tripled compared to conventional designs, each with a pocket. The pocket unit or the carrier 29 is rotated once during a revolution of the dry turret 13 by a transmission, alternatively by 180 ° or 120 °. The transmission is stationarily arranged in an upper region of the upright rotating dry turret 13 (FIG. 4). Each pocket unit or each carrier 29 is associated with a co-rotating actuator, which acts on the actuating shaft 33. In the present embodiment, the actuating gear is designed as a cam gear. The actuator is a rotary body or roller star 34, which rotates in a largely closed, channel-shaped housing 35 according to the rotation of the dry turret 13. In this case, during a total rotation of the dry turret 13, a half or partial rotation is transmitted to the pocket unit.

Actuating means are attached to the roller star 34, namely rollers 36, 37; 38, 39; 56, 57. These are each two pairs of rollers, which are arranged in different planes of the roller star 34 and cam tracks are assigned. The roller star 34 or a supporting body for the rollers is arranged centrally to the pocket unit, namely at the end of the actuating shaft 33 connected thereto.

The roller star 34 or its supporting body consists of two spaced-apart support disks 58, 59. These are aligned in the axial direction to each other and connected to form a gap 60 via a central shaft piece 61 firmly together. The middle rollers 36, 37 are arranged in the region of the intermediate space 60 and here both rotatably connected to one of the support disks, namely the support disk 58 remote from the pockets. The other roles, namely 38, 39 on the one hand and 56, 57 on the other hand, are also rotatably mounted on mutually remote sides of the support disks 58, 59, in each case offset by 90 ° to the rollers 36, 37th

The rollers 36..39 and 56, 57 run on curved paths, in pairs. The outer rollers 38, 39 are associated with a first cam track, namely an outer cam 41. The opposite rollers 56, 57 run on a second cam track, namely an inner track 42. The predominantly circular cam tracks 41, 42 are formed with the same diameter, so lie on a common circular plane. A the roller 36, 37 associated third roller conveyor, namely an intermediate curve 43 is spatially arranged between the cam tracks 41, 42 and sized circular with a smaller diameter.

The rollers are arranged in a particular relative position on the roller star 34 in order to become effective in the area of a turning station or a rotating area of the pocket units (FIG. 4). The rollers 36, 37 are arranged diametrically opposite each other on the roller star, in a common, central transverse plane. The rollers 38, 39 on the one hand and 56, 57 on the other hand are also arranged diametrically opposite each other, but in staggered planes. As can be seen in FIG. 8, the front roller 38 of the pair of rollers 38, 39 in the direction of movement bears against the associated outer cam 41, while the opposite roller 39 is raised therefrom. In the reverse relative position, the roller 56 lying in the direction of movement is lifted from the associated inner web 42, while the rear roller 57 rests against this curved path.

To carry out the rotational movement of the carrier 29, the curved paths in the region of a turning station have special shapes. The outer curve 41 and inner curve 42 are coincident provided with a recess 44, that is a radially inwardly deformed, rounded "dent". At the same point, the cam track 43 has an increase 45, that is, a radially outward bulge. This is externally provided with a flattening 62, by which a run-up of the shaft piece 61 of the roller stars 34 is avoided on the in-plane elevation 45. The roller 38 at the front during the rotational movement first enters the recess 44. At the same time, the roller 37 runs on the increase 45. This causes the unit to rotate counterclockwise (Figure 4). The function of the cam gear is adjusted so that half the turn is completed when the roller 38 has reached the lowest point of the recess 44. With continued rotational movement, the roller 38 comes to rest on the outer curve 41, now in the direction of rotation of the dry turret 13 in front. Furthermore, after overcoming the elevation 45, the roller 36 has made contact with the cam track 43, from which the roller 37 is lifted at the same time. Also with regard to the pairs of rollers 38, 39 and 56, 57, a change has occurred. It is now each time the other roller 39, 56 on the associated cam track 41, 42 at. These pairs of rollers results in a very stable position of the pocket unit during circulation and an equally precise rotational movement in the range of the rotary section.

Another special feature is the transfer of the packs 10 to the dry turret 13. Analogous to the solution according to DE 43 00 149 A1 are in the area of receiving the packs 10 on the inlet side of the bag 14..16, so adjacent to the feed opening 19, movable holding members effective, take over the pack 10 of the Übergabere- volver 12 and capture until insertion into the bag 14..16. The holding members are on both sides of the pack 10 effective gripping arms 46. Several of these juxtaposed gripping arms 46 are each attached to a common arm holder 47 which is pivotally mounted. The rotational movements are transmitted by an actuating rod 48, which is arranged adjacent to the actuating shaft 33. The rotational movements of the actuating rod 48 and thus the pivoting movements of the gripping arms 46 are effected by a gear which is formed as a cam gear. Touch rollers 49, 50 run on a curved path, namely an inner track 51, which is designed as a ring running around the housing 35. As can be seen in FIG. 5, the sensing rollers 49, 50 associated with the actuating rods 48 for each arm holder 47 are pressed by springs 52 against the curved track or against the inner track 51. This is designed so that over the sensing rollers 49, 50 pivotal movements of the gripping arms 46 are acted upon for opening and closing or for detecting and releasing a pack 10. The sensing rollers 49, 50 are each connected via a pivot arm 53 to the actuating rod 48.

The construction of the folding turret 11 is adapted to the movable pockets 14, 15, 16 or to the pocket units. The support webs 30, 31 form with a circumferentially extending inner wall 54 around a running recess for receiving the spaced apart from each other pocket units. For sufficient support and guidance of the actuating shaft 33 this - except in the support web 30 - in a further, spaced support wall 55 is guided. At this the housing 35 connects. The drive of the pocket units can also be carried out in another way. Thus, each pocket unit may be assigned its own drive, for. B. a servomotor.

LIST OF REFERENCE NUMBERS

10 pack of 39 rolls

11 folding turret 40 deepening

12 transfer turret 41 outer curve

13 dry turret 42 inside curve

14 pocket 43 intermediate curve

15 pocket 44 recess

16 bag 45 increase

17 bottom wall 46 gripper arm

18 front wall 47 arm holder

19 Feed opening 48 Operating rod 0 Outlet opening 49 Touch rollers 1 Transfer station 50 Touch rollers 2 Support plate 51 Inner track 3 Slide 52 Spring 4 Actuation rod 53 Swivel arm 5 Stage 54 Inner wall 6 Sluice 55 Supporting wall 7 Extraction conveyor 56 Roller 8 Banderole 57 Roller 9 Carrier 58 Carrying disk 0 Supporting web 59 Carrying disk 1 Supporting web 60 Gap 2 Bearing 61 Shaft 3 Operating shaft 62 Flattening 4 Roller star 5 Housing 6 Roller 7 Roller 8 Roller

Claims

claims

1. conveyor for the transport of (cuboid) packages (10), in particular dry turrets (13) for cigarette packs, with a plurality of pockets, (14, 15, 16) for receiving a plurality of closely juxtaposed packages (10), wherein in the area of a loading station, one pack (10) is inserted into a pocket (14, 15, 16) by axis-parallel displacement and at the same time a pack (10) is pushed out of the relevant pocket (14, 15, 16) on the opposite side bar, characterized in that on the conveyor, in particular on the circumference of the drying turret (13), movable, preferably rotatable units with at least two pockets (14, 15, 16) are arranged by moving or by rotating the unit alternatively in reach an outward loading or emptying position.

2. Conveyor according to claim 1, characterized in that the pockets (14, 15, 16) of a unit on a bag carrier (29) are arranged, which is rotatable about a transversely to the transport direction, in particular transversely to the direction of rotation of the dry turret (13) facing axis is, such that alternatively arranged on the bag carrier (29) pockets (14, 15, 16) reach in a radially outwardly directed position.

3. Conveyor according to claim 1 or 2, characterized in that on the bag carrier (29) has two diametrically opposed pockets (14, 15) are arranged, of which in each case a pocket (14, 15) on the radially outer side of the dry turret ( 13) and the other pocket (15, 14) in a recess of the dry turret (13).

4. Conveyor according to claim 1 or 2, characterized in that more than two pockets (14, 15) are arranged at equal circumferential distances from each other on the common bag carrier (29), in particular three pockets (14, 15, 16) by corresponding partial rotation of the bag carrier (29) successively reach the outward position for loading and unloading.

5. A conveyor according to claim 1 or one of the further claims, characterized in that the rotational movement of the bag carrier (29) over a range of rotation of the preferably continuously rotating dry turret (13), preferably by controlling the rotational movement via common control elements.

6. Conveyor according to claim 5 or one of the further claims, characterized in that the bag carriers (29) are individually rotatable by associated actuators or by a common, stationary actuators, in particular by fixed cams on which tactile organs or sensing rollers during the relative rotational movement of the dry revolver (13) running due to correspondingly formed cam tracks cause a rotational movement of the bag carrier (29).

7. Conveyor according to claim 6 or one of the further claims, characterized in that the unit of the pockets (14, 15, 16), in particular the bag carrier

(29), via actuating means, in particular via an actuating shaft (33) is connected to a roller carrier on which on cam tracks (41, 42, 43) running rollers (36, 37, 38, 39) are arranged, wherein the roller carrier due to Contour of the cam tracks during a partial rotation of the dry turret (13) is rotatable for transmitting corresponding rotational movement on the bag carriers (29).

8. Conveyor according to claim 7 or one of the further claims, characterized in that the roller carrier is formed as a roller star (34) each offset by 90 ° to each other rollers (36..39; 56, 57), wherein in each case at least two rollers ( 38, 39, 56, 57) on a first cam track (41, 42) and further rollers (36, 37) on a further cam track (43) run through matched shapes, in particular by a recess (44) of a curved path (41, 42) on the one hand and an elevation (45) of the other curved path (43) on the other hand cause a rotation of the roller star (34).

9. Conveyor according to claim 8 or one of the further claims, characterized in that the roller star (34) arranged three pairs of rollers and three cam tracks (41, 42, 43) are assigned, wherein two cam tracks (41, 42) matching shape and size have and the third cam track (43) is offset for this purpose in the radial direction.

10. Conveyor according to claim 1 or one of the further claims, characterized in that the dry turret (13) for taking over the packs (10) and for keeping in the area of each pocket (14, 15, 16) on both sides of the assumed Pack (10) acting gripping arms (46) which are pivotable via a respective common arm holder (47) between an opening and a closed position, wherein the arm holder (47) via an actuating member (48) is movable, by means of sensing rollers (49 , 50) of a fixed control cam, namely inner web (51) of the common housing (35) is movable.