EP0529689B2 - Device for transferring parallelepipedic packages - Google Patents

Description

The invention relates to a device according to the preamble of claim 1 (known from GB-A-1 364 730). The object of the invention has been eliminated from the number EP-A-0313938 published European patent application.

From US-A-2913864 is a revolving Intermediate conveyor known with the four packs existing stack to a conveyor be handed over. The conveyor takes the pack stacks between two laterally arranged Conveyor belts. At the same time, when entering Pack stack in the conveyor a support provided by a lower roller conveyor. All in all the device is very complex.

The object of the present invention is smooth Delivery of the packs by one Packaging organ to the conveyor. Especially intended to be fast, continuous and easy Handover be made possible.

To solve this problem is the invention Device characterized by the features of claim 1. An application the invention is the delivery of one Drying revolver of a cigarette packaging machine to others via the named conveyor Organs. They are advantageously a large front wall and rear wall and narrow side walls and packs having end walls Intermediate conveyor in a flat position, i.e. With Front or rear wall in the conveyor level, can be fed and to the conveyor in one for him transferable upright position. The intermediate conveyor is therefore not only concerned with the handover to the conveyor, but at the same time changes the relative position of the packs in relation to the conveyor level of the respective sponsor.

Fig. 1

einen Trockenrevolver mit Abförderer in Seitenansicht - von der Rückseite her,

Fig. 2

einen Ausschnitt des Trockenrevolvers, von der Vorderseite gesehen, in vergrößertem Maßstab,

Fig. 3

einen nochmals vergrößerten Ausschnitt zur Darstellung der Taschenketten in einer Ansicht gemäß Fig. 2,

Fig. 4

einen Ausschnitt des Trockenrevolvers gemäß Fig. 2 im Radialschnitt,

Fig. 5

Einschubstation und Ausschubstation mit einem vereinfachten Ausschnitt des Faltrevolvers in Seitenansicht,

Fig. 6

einen Ausschnitt der Einzelheit gemäß Fig. 5 in vergrößertem Maßstab,

Fig. 7

eine Grundrißdarstellung im Bereich der Ausschubstation mit Radialschnitt durch den Faltrevolver,

Fig. 8

eine gegenüber Fig. 7 um 90° versetzte Ansicht bzw. einen Schnitt einer Einzelheit der Fig. 7.

Further features of the invention emerge from the subclaims. An embodiment of the invention is explained below with reference to the drawings. It shows:

Fig. 1

a dry turret with conveyor in side view - from the back,

Fig. 2

a section of the drying turret, seen from the front, on an enlarged scale,

Fig. 3

FIG. 2 shows a further enlarged detail to show the pocket chains in a view according to FIG. 2,

Fig. 4

2 shows a section of the drying turret according to FIG. 2 in radial section,

Fig. 5

Slide-in and slide-out stations with a simplified section of the folding turret in side view,

Fig. 6

5 shows a detail of the detail according to FIG. 5 on an enlarged scale,

Fig. 7

a plan view in the area of the extension station with a radial section through the folding turret,

Fig. 8

a view offset by 90 ° compared to FIG. 7 or a section of a detail of FIG. 7.

The device shown in the drawings is part of a packaging machine, especially for the production of cuboid Packs of 10, 11 (folding boxes) for cigarettes. The packaging machine can otherwise be designed as in DE-A-24 40 006. In particular, the device shown is for suitable for two-lane packaging machines for the simultaneous production of two packs 10, 11.

The cuboid packs 10, 11 have Folding flaps that are connected to each other by gluing are. There is a hinged shaft such folding tabs glued together, namely Side lobes, in the area of elongated side walls 12, 13 of the pack 10, 11.

To stabilize the shape of the packs 10, 11 and for curing glue spots the packs 10, 11 after completion in introduced a drying turret 14.

The drying turret 14 is for simultaneous Inclusion of two packs 10, 11 set up and for that purpose with two series of bags 15, 16, each to hold a pack 10, 11, equipped. The pockets 15, 16 are in circular, concentric orbits arranged as Pocket wreaths 17 and 18. The arrangement of the same or the relative position of the pockets 15, 16 such that two mutually assigned pockets 15 and 16 of the pocket wreaths 17, 18 in radial Alignment to each other are arranged. Between the pockets 15, 16 of the pocket wreath 17 on the one hand and the pocket ring 18 on the other hand are wedge-shaped spacers 19, 20 of different Size arranged so that the pockets 15 of the pocket wreath 17 a larger one Are spaced apart than the pockets 16 the pocket wreath 18.

The pockets 15, 16 are arranged and dimensioned that the packs with the side walls 12, 13 in the radial direction outwards or facing inside in pockets 15, 16 holder Find. The dimensions of the pockets 15, 16 correspond that of the packs 10, 11, so that their exact cuboid shape in the pockets 15, 16 is produced or stabilized.

The pockets 15, 16 are open on one side, closed at the rear by a rear wall 21 - except for passage openings 22, 23. Die Packs 10, 11 become the back wall 21 opposite open side in the pocket 15, 16 introduced in the axial direction and in the opposite Pushed out again. For this extension is the pockets 15, 16 in the area an extension station 24 each have a double tappet 25, 26 assigned. The two double tappets 25 and 26 are interconnected and will be operated simultaneously. Ram 27 pass through the Through openings 22, 23 of the rear wall 21 therethrough into pockets 15, 16 and slide them Packs 10, 11 over an end wall (top wall or floor).

The outer pockets 15 of the pocket wreath 17 are on the radially outer side and the inner pockets 16 of the inner Pocket wreath 18 on the radially inner Side with a movable, elastically mounted Pocket wall 28 and 29 equipped. This lies accordingly on the respective outer or inner side wall 12 or 13 of the pack 10, namely under preload due to compression springs 30, the themselves on the pocket walls 28, 29 on the one hand and an outer wall 31 or inner wall on the other hand support. Surrounded by the compression springs 30 Pull pins 33 come out through the outer wall 31 or through the inner wall 32. At the outer ends there are holding heads 34 attached, which is approximately T-shaped in cross section and are gripped by a tool can be about to with the pocket walls 28, 29 connected pull pins 33 the pocket walls 28, 29 not attached to the packs 10, 11 to move. In the area of the extension station 24 as well as in the area of an insertion station 35 the pocket walls 28, 29 in the described Retracted radially outwards or inwards, to insert and eject the Allow packs 10, 11.

The pockets 15 and 16 are heated, and through an electrical resistance heater. For this purpose the drying turret 14 is adjacent to a turret hub 36 with two concentric Slip rings 37, 38 provided. On this there are fixed grinding electrodes 39, 40 (Carbon electrodes). These are supplied with electricity. Electrical leads from the slip rings 37, 38 Lines 41, 42 to concentric heating tapes 43, 44 and 45. These are in the range of annular outer wall 31 and inner wall 32 and an intermediate wall 46. The heating tapes 43, 44 and 45 run around and heat thus all pockets 15, 16.

To lift the pocket walls 28 and 29 over the spring-loaded tension pins 33 are used in the present embodiment on the exterior and Fixed inside of the drying turret 14 arranged lift lever, namely external lift lever 47 and 48 and interior lift levers 49 and 50. The lift levers 47..50 are at their ends with claws 51 Mistake. In this, the holding heads 34 move Pull pins 33 due to the rotary movement of the drying turret 14 in the extension station 24 and the Insert station 35 a. By training the Claws 51 become the holding heads 34 in these Stations recorded positively. As a result of pivoting movement the lift lever 47..50 becomes the traction pins 33 of the pockets 15, 16 in the area of the extension station 24 and the insertion station 35 in the radial direction pulled outwards or inwards with the Consequence that the pocket walls 28, 29 of the Side walls 12, 13 of the packs 10, 11 are lifted off are. The packs 10 can now in the pockets 15, 16 inserted or out of these be expelled. The claw 51 is for grasping of the two holding heads 34 per pocket wall 28, 29 with the appropriate width or as a double claw formed, as can be seen from Fig. 4.

A peculiarity regarding the operation the lift lever 47..50 is that the outer lift lever 47, 48 as well as the inner lift levers 49, 50 are each connected to each other by gears. The outer lift lever 47 is in the present case designed as an angle lever and via a pivot bearing 52 connected to the second outer lift lever 48. The latter is fixed in a pivot bearing 53 stored. The free leg of the outer lift lever 47 is with a reciprocating Crank arm 54 connected. Whose swivel movements are thus on the outer lift lever 47 and from this to the outside lift lever at the same time 48 transferred. The outer lift lever 47 is the Slide-in station 35 and the outer lift lever 48 Eject station 24 assigned.

The inner lift levers 49, 50 formed (Fig. 1). The extension station 24 assigned interior lift lever 49 is by a reciprocating crank arm 55 driven. The pivoting movements of the inner lift lever 49 are via a coupling 56 on the insertion station 35 assigned inner lift lever 50 transmitted.

The extension station 24 is in a radial plane below the (imaginary) horizontal Middle level of the revolving in an upright level Drying revolver 14.

The packs 10, 11 are after the exit from the dry turret 14 to a conveyor 57 passed out of an upper and lower Conveyor belt is horizontal Obertrum 59 and Untertrum 58. Between Obertrum 59 and lower strand 58 are the packs 10, 11 promoted at a distance from each other, and in an upright position, such that the Side walls 12, 13 on upper run 59 and lower run 58 concerns.

To this position of the packs 10, 11 too achieve the packs 10, 11 after Exit from the dry turret 14 to an intermediate conveyor 60 handed over to the packs 10, 11 individually along an arcuate conveyor track passes to the conveyor 57. The packs 10, 11 are during transport in Intermediate conveyor 60 from the flat lying position brought into the erect.

The intermediate conveyor 60 is considered continuous rotating conveyor wheel designed with elongated Driver arms 62. As can be seen from FIG. 7, the feed wheel 61 is designed in the manner of a spool of thread, whereby two are spaced from each other arranged driver arms 62 for gripping each a pack 10, 11 in the range of Front wall or rear wall arise.

The intermediate conveyor 60 is stationary, namely in the area of the extension station 24, next to the Outer circumference of the drying turret 14, in such a way that the radially outward Bags 15 packs pushed out 10 each directly on a driving arm 62 of the feed wheel 61. The movements are matched to each other so that the pack 10 in a receiving position for the intermediate conveyor 60 is when a drive arm 62 due to rotation of the feed wheel 61 from below in reaches this area. The package in question 10 then becomes approximately along a quarter circle promoted and then gets to the entry page of the conveyor 57.

The delivery of the packs 10, 11 from the conveyor wheel 61 to the discharge conveyor 57 is facilitated that this consists of two side by side Conveyor belts exist, also in Area of Obertrum 59 and Untertrum 58. The Intermediate conveyor 60 extends with a partial area between the conveyor belts. Thereby can put the packs in one for transportation favorable position between upper run 59 and lower run 58 are funded.

The same time from the dry turret 14th ejected pack 11 is at a distance from The extent of the intermediate conveyor 60 is reduced, then moved to a position for receiving by a subsequent driver arm 62 of the feed wheel 61.

For successive feeding of the packs 10, 11 to the intermediate conveyor 60 is in Area of the extension station 24 in the extension direction the packs 10, 11 next to the drying turret 14 a platform 63 is arranged. This extends itself as a tongue-like support for the two packs 10, 11 in the range of Conveyor wheel 61. With an extension piece 64 narrower width, the platform 63 projects between the two parts of the drive arms 62 of the feed wheel 61.

The outer pack 10 is when extended directly from the drying turret 10 this area of the platform 63. The second pack 11 is then placed on the platform 63 shifted in the direction of the feed wheel 61, by a working from the bottom, reciprocating slide member 65. This consists essentially of four by a U-frame 66 Uprights linked to form a unit Driver pins 67, 68, which the pack 11 each with respect to the direction of conveyance capture rear side wall 12 and on the lead opposite side wall 13 so that the pack 11 moves precisely and precisely becomes. The driver pins 67 and 68 have one such a distance from each other that they are both Extend sides of platform 63 and also in a position on both sides of the feed wheel 61 can be moved.

The slide member 65 is below the platform 63 is arranged to take a pack 11 moved up, then straight with this (radial) moves. In the end position, namely after delivery of the pack 11 to the intermediate conveyor 60, the driving element 65 is lowered and below the platform 63 in the starting position returned. The D-shaped movement curve 69 is shown in FIG. 6.

To perform the described movement the slide member 65, this is pivotable mounted on a crank arm 70, which in a Level parallel to the level of the dry turret 14 is driven swinging back and forth. The crank arm 70 contains two swing arms 71 and 72, with the free ends on the slide member 65 are articulated and with the other ends a pivotally mounted coupling arm 73 attached are. The crank arm 70 is replaced by a Crank 74 driven (Fig. 5) on the swing arm 71 attacks.

The next to in the area of the extension station 24 the drying turret 14 extending platform 63 has a radially sloping towards the outside Tilt. Around the packs 10, 11 on the platform 63 in exact relative position and feeding the intermediate conveyor 60 are more Holding and management bodies provided. In addition to the Platform 63, which has a smaller width than that Dimension of the packs 10, 11 extends laterally - facing the drying turret 14 - one Underpass 75 for the packs 11, 12 with Distance from platform 63 so that the driver pins 67, 68 between platform 63 and underpass 75 can be moved. The underpass 75 is in partial areas, namely in the area between the packs pushed out at the same time 10, 11, with an angular adjoining Side guide 76 provided. At this the package 11 pushed out radially inside, when fed to the intermediate conveyor 60 becomes.

An upper guide 77 with an angular Floor plan shape (Fig. 7) is in the area of the pack 11 effective during and after the extension (s) from the dry turret 14. The upper guidance 77 consists of a horizontal or in the plane the top of the pack 11 extending Tongue 78, which is pivoted laterally, namely at a distance above the platform 63 mounted swivel arm 79, the other Organs. An axis of rotation 80 of the top guide 77 extends parallel to the conveying direction Pack 11 on platform 63. The upper guide 77 or its tongue 78 is below that Dead weight on the pack 11 and stabilized thereby their exact position on the platform 63.

To have adverse effects due to the high Ejection speed of the packs 10, 11 from the dry turret 14 is to be avoided both packages a common pick-up 81 assigned. This consists of an angular one Pick-up arm 82, which at the start of the extension movement for the packs 10, 11 of these is moved towards (Fig. 8). Under attachment the pick-up arm 82 then becomes the extension movement continued, the pick-up arm 82 with same movement as the packs 10, 11 in the starting position (Fig. 7) returns.

The pickup arm 82 is on for this purpose a parallelogram linkage 83 attached, which is fixed with the free ends and swinging back and forth by a push rod 84 is driven.

This is in the area of the intermediate conveyor 60 Care was taken that the packs 10, 11 after Takeover by the conveyor wheel 61 properly are led. For this purpose, the already mentioned swivel arm 79 an outer guide 85 formed. This is designed in the form of a circular arc and limits the outer trajectory the packs 10, 11 during transport through the feed wheel 61. As can be seen from FIG. 6, the outer guide 85 remains at a short distance of the packs 10, 11. Only at The packs come outward shifts 10, 11 during transportation through the Conveyor wheel 61 for contact with the outer guide 85. As shown, this is part or an end region the swivel arm 79 is formed. The swivel arm 79 in turn extends above the Platform 63.

Furthermore, on the swivel arm 79 or on the the outer guide 85 forming part a side guide piece 86 attached. This forms a side Guided tour for packs 10, 11 during of transport through the conveyor wheel 61, namely on the side facing the dry turret 14. In this respect, the side guide piece 86 is a counterpart to pickup 81. The side guide piece 86 prevents packs 10, 11 from shifting on the driver arms 62 in the axial direction Feed wheel 61.

The outer guide 85 and the side guide piece 86 are just like the upper guide 77 by the arrangement of the swivel arm 79 movable. This will break machine parts in the case of congestion as a result of incorrectly transported or trained packs 10, 11 avoided. How can be seen, the swivel arm 79 as a two-armed Lever formed and around a lever bearing 87 swiveling. A free end of the swing arm 79 is against a fixed stop 88, namely due to the action of a tension spring 89. The Swivel arm 79 is accordingly by the tension spring 89 pulled against the stop 88. With increased Load on the outer guide 85 and / or that The side guide piece 86 becomes the swivel arm 79 against the load of the tension spring 89 clockwise (Fig. 5) pivoted so that the concerned Dodge organs and avoid breakage.

Claims (11)

1. Apparatus for transferring cuboidal cigarette packs from a first packaging member, in particular a drying turret, to a discharge conveyor (57), having a rotating conveyor wheel (61) for conveying the fed packs (10,11) along a path in the form of an arc of a circle, wherein the discharge conveyor (57) has a lower conveyor belt with an upper strand (59), on which the packs (10,11) come to bear in each case with a first side (13), and an upper conveyor belt with a lower strand (58), on which the packs (10,11) come to bear in each case with a second side (12) situated opposite the first side (13), characterised by the following features:

   a) the conveyor wheel (61) and the discharge conveyor (57) are continuously movable,

   b) the packs (10,11) can be fed to the conveyor wheel (61) spaced apart from one another,

   c) the projecting take-up arms (62) for each conveyor wheel (61) having a pack (10,11) receives the packs (10,11) in a position thereof in which the take-up arms (62) bear respectively on the large-area front wall or rear wall of the pack (10,11)

   d) the rotating conveyor wheel (61) extends into the region of the discharge conveyor (57) in such a way that in each case individual packs (10,11) can be conveyed into and set down in the region between the upper strand (59) and the lower strand (58) of the discharge conveyor (57) by the take-up arms (62) of the conveyor wheel (61),

   e) the conveyor belts of the discharge conveyor (57) each comprise two conveyor belts between which the conveyor wheel (61) can rotate.
2. Apparatus according to Claim 1, characterised in that the packs (10,11), having a large front wall and rear wall and narrow side walls (12,13) and end walls, can be fed to the intermediate conveyor in a flat position, that is to say with the front wall or rear wall in the conveying plane, and can be transferred to the discharge conveyor (57) in a position which is upright for said conveyor.
3. Apparatus according to Claim 1 or 2, characterised in that, on the circumference, the conveyor wheel (61) has two spaced apart take-up arms (62) for each pack (10,11) which is to be taken up.
4. Apparatus according to one or more of Claims 1 to 3, characterised in that, during transportation through the intermediate conveyor (60), the packs (10,11) are guided on the radial outer side of the same, in particular by an outer guide (85), with a guide edge in the form of an arc of a circle, as part of a pivot arm (79) which can be moved counter to spring loading (tension spring 89).
5. Apparatus according to Claim 4, characterised in that a lateral guide (86) is fitted on the outer guide (85) or on the pivot arm (79) of the same in order to guide the packs (10,11), during transportation through the intermediate conveyor (60), in the region of the end sides.
6. Apparatus according to one or more of Claims 1 to 5, characterised in that provision is made for an intermediate carrier arranged next to the drying turret (14), especially with a stationary platform (63) extending in the radial direction of the drying turret (14), it being possible for the packs (10,11) pushed out of the pockets (15,16) of the drying turret (14) to be set down on the intermediate carrier.
7. Apparatus according to Claim 6, characterised in that the radially outer pack (10), after being pushed out of the pocket (15) can be set down on the platform (63) in a region situated in the range of movement of the intermediate conveyor (60) in such a way that the pack (10) can be lifted off directly from the platform (63) by the intermediate conveyor (60), especially by the take-up arms (62).
8. Apparatus according to Claim 6 or 7, characterised in that a second, radially inner pack (11), after being pushed out of the pocket (16), can be set down on the platform (63) and fed to the intermediate conveyor (60) by a slide member (65) acting in the radial direction.
9. Apparatus according to Claim 8, characterised in that the slide member (65) is movable underneath the platform (63), and take-up means, especially vertical take-up pins (67,68) extending on both sides of the platform (63), grasp the pack (11) and take it on the platform (63) into the position for reception by the intermediate conveyor (60), and in that the take-up pins (67,68) can be conveyed back into the initial position outside the path of movement of the pack (11).
10. Apparatus according to one or more of Claims 6 to 9, characterised in that the platform (63) has assigned to it guiding and leading members for the packs (12,11), especially for the pack (11) distant from the intermediate conveyor (60) after being pushed out of the pocket (16), especially a lower guide (75) and lateral guides (76).
11. Apparatus according to one or more of Claims 6 to 10, characterised in that the pack (11) distant from the intermediate conveyor (60), after being pushed out of the pocket (16), has assigned to it, on the platform (63), an upper guide (77) which is movable, especially pivotable along a radial axis, and which rests on the pack (11) essentially under its own weight and is fitted, in particular, on the pivot arm (79).

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