EP1425979A1 - Multifunctional conveyor drum - Google Patents

Abstract

Conveying drum (10) for objects (15) of the tobacco-processing industry comprises a lifting device (17.1, 17.2) for changing the longitudinal axial distance between objects aligned in a longitudinally axial manner and conveyed in at least one row in a transversely axial manner to the conveying drum by a pre-determined longitudinal axial stroke. The stroke of the lifting device is adjustable. An Independent claim is also included for a machine used in the tobacco-processing industry comprising at least one conveying drum. Preferred Features: One lifting device is provided for each row of objects. The lifting device is formed by at least one swash plate.

Description

The invention relates to a conveyor drum for articles the tobacco processing industry with a lifting device to change the longitudinal axial distance from longitudinal axial aligned with each other and in at least one row articles conveyed transaxially of the conveyor drums a predetermined longitudinal axial stroke. Furthermore concerns the invention a machine of tobacco processing Industry.

Under articles of the tobacco processing industry understood such objects in the present context, those in single-layer or multi-layer rows using suction air on conveyors, e.g. on conveyor drums in filter or cigarette making machines held and promoted by them. Such articles are filter cigarettes, cigars, cigarillos as well Filter rods, filter segments etc. If in the following the For the sake of simplicity only cigarettes or filters what is said applies accordingly also for other articles of the aforementioned to be funded Type such as Filter segments.

In cigarette machines, cigarettes are cut across from them longitudinal axial alignment on conveyor drums, at which are primarily drums of cigarette making machines or filter attaching machines acts, held with suction air. On the conveyor drum can be side by side in two essentially parallel Rows of cigarettes arranged and on the conveyor drum moved at right angles to the cigarette axes become. To e.g. a double filter between two axially inserting aligned cigarettes cut double-length tobacco sticks on the conveyor drum spread axially and a double length Filter rod inserted.

While spreading the tobacco sticks on the conveyor drum the tobacco sticks experience a predetermined Stroke so that the tobacco sticks are spaced longitudinally axially become.

In addition, sliding drums are known in which in parallel rows, staggered Filter rods on the sliding drum to a number of filter rods arranged one behind the other pushed together become.

In the known spreading drums and sliding drums experience the articles on these conveyor drums predetermined longitudinal axial stroke. Because of the construction the conveyor drums is the stroke or the longitudinal axial Fixed shift. For example, is off document DE-A-41 34 663 a device for axial Offset a row of cigarettes relative to a parallel one continuous cigarette row described. The Recordings for the row of cigarettes to be moved are on the ends of cranked crank arms arranged in one Parallel disc drive are stored. The axes of the Parallel disk drives are one to axes continuous cigarette row promoting drum inclined.

Based on this state of the art, it is a task of the present invention, a conveyor drum create that can be easily adapted to different long articles of the tobacco processing industry, e.g. after a change of production, other existing Set up a machine of tobacco processing Industry continues to be used after the change in production become.

This task is solved with a conveyor drum for Articles of the tobacco processing industry with one Lifting device for changing the longitudinal axial distance from aligned axially to each other and in at least a series fed axially across the conveyor drum Articles by a predetermined longitudinal axial stroke, the is further developed in that the stroke of the lifting means is adjustable. The invention is based on the idea that the longitudinal axial stroke of an article on the invention Conveyor drum is changeable so that the Machine of the tobacco processing industry easily different production conditions for the items is adjusted. This will be an advantageous one Flexibility with regard to the items to be manufactured or Formats reached. Through the adjustable or adjustable The longitudinal axial stroke of the articles is turned on a spreading drum or a sliding drum individually set. By means of the continuously adjustable Hubes will offer a wide range of formats on the Conveyed drum. The adjustability according to the invention The lifting device affects both the size of the Hubes i.e. the length as well as the end positions of the Stroke. With simultaneous rotation of the conveyor drum are the reversal points of the executed axial Lift movement can be selected or changed as required. Thereby it is possible that different with the same conveyor drum long strokes according to the conveyed Articles are run and / or at different Transfer points added in the axial direction or be delivered.

The possible uses of the conveyor drum are expanded by the fact that for each fed series of Articles a lifting means is provided, each of which Lifting means is adjustable according to the invention. Thereby the articles become more different on the conveyor drum Rows according to the requirements with one provided longitudinal axial displacement.

In a further development of the invention, the lifting means formed by means of at least one swash plate. The Swashplate is for guiding the article recordings for the articles are arranged inside the drum.

To change the stroke of the swashplate, the Swashplate advantageously slidable.

It is particularly advantageous if the swash plate is axially displaceable parallel to the articles.

The stroke or the axial displacement of the article on the conveyor drum is adjustable when the angle between the axis of rotation of the swash plate and the axis of rotation the conveyor drum is changeable.

Individual axial displacements of parallel rows on the conveyor drum are realized if for everyone Swashplate the angle between the axis of rotation of the Swashplate and the axis of rotation of the conveyor drum is changeable.

In addition, the movement of the conveyor drum or Swash plates in the conveyor drum a drive for at least one swash plate provided. The drive moves the swashplate on the control ring of the Conveyor drum, so that the items on the conveyor drum from a feed drum to a discharge drum between different longitudinal axial end positions for one constant stroke are transported.

In particular, there is at least one setting means for the Swashplate provided so that the longitudinal axial stroke or the axial displacement is precisely defined.

To execute a precisely set stroke longitudinally movable receptacles for the articles on the Conveyor drum provided.

In an alternative there are at least two recordings for the articles on a slide that can be moved in the axial direction arranged so that several articles in the shots of a sled picked up simultaneously and on the Conveyor drum can be transported. In particular has the slide has proven itself in sliding drums because of teeth or recesses formed in such a way are that two slides are complementary in form and function can be pushed together so that two parallel Rows with articles axially offset a single row on the sliding drum one behind the other lying articles are pushed.

For executing the stroke or the axial displacement are the recordings or the sledge with connected to a swashplate.

In a preferred development of the invention suggested that the shots or the sled connected to the swash plate by means of a ball joint are.

In addition, the conveyor drum is advantageously as Spreading drum trained. In an alternative it is Conveyor drum designed as a sliding drum.

The object of the invention is further achieved by a Machine of the tobacco processing industry with at least an inventive, described above Conveyor drum. The use of the conveyor drum is particularly suitable in cigarette manufacturing machines or filter making machines because in these Machines prefer spreading drums and / or sliding drums available.

Fig. 1

einen Querschnitt durch eine erfindungsgemäße Spreiztrommel;

Fig. 2

im Ausschnitt einen Querschnitt durch eine weitere Fördertrommel;

Fig. 3

eine Querschnittsansicht im Ausschnitt einer Spreiztrommel;

Fig. 4

eine Querschnittsansicht einer Schiebetrommel;

Fig. 5

eine Querschnittsansicht einer Schiebetrommel im Ausschnitt und

Fig. 6

eine schematisierte Darstellung der Förderung von Zigaretten auf einer erfindungsgemäßen Schiebetrommel.

The invention is described by way of example using the exemplary embodiments illustrated in the drawings and without restricting the general inventive concept, reference being expressly made to the drawings for all details according to the invention that are not described in any more detail in the text. Show it:

Fig. 1

a cross section through an expansion drum according to the invention;

Fig. 2

in the section a cross section through another conveyor drum;

Fig. 3

a cross-sectional view in the detail of a spreader drum;

Fig. 4

a cross-sectional view of a sliding drum;

Fig. 5

a cross-sectional view of a sliding drum in the cutout and

Fig. 6

a schematic representation of the promotion of cigarettes on a sliding drum according to the invention.

The same elements are used in the following drawings provided with the same reference numbers so that from one will not be presented again.

In Fig. 1 is a cross section through an inventive Spreading drum 10 shown. The spreading drum 10 is arranged on a control flange 11. The control flange 11 is attached on the machine side. The spreading drum 10 has one on both sides of the drum 10 Drum cover 12.1, 12.2. On the peripheral surface of the Spreading drum 10 are recordings which can be displaced axially 13 trained. The recordings 13 promote the one Feed drum supplied cigarettes 15 from a (here not shown) feed drum to a (also discharge drum (not shown). During the Transport from the feed drum to the removal drum the longitudinal axial distance between each Cigarette pair are enlarged. The control flange 11 is surrounded by a control ring 14 around which the drum 10 is rotated. The axis of rotation of the expanding drum 10 is provided with the reference number 16.

Inside the conveyor drum 10 are between the Control ring 14 and the receptacles 13 swash plates 17.1, 17.2 trained. The swash plates 17.1, 17.2 are pivoted on ball bushings 18.1, 18.2, the are slidably mounted on the control ring 14. The are ring-shaped ball bushings 18.1, 18.2 slidable along the outer surface of the control ring 14.

To connect the swash plates 17.1, 17.2 with the Recordings 13 are on the outside of the swash plates 17.1, 17.2. Ball joints 19.1, 19.2 trained in 21.1, 21.2 of the receptacles 13 engage.

Due to the spherical surface of the ball bushings 18.1, 18.2, the inclination of the swash plates 17.1, 17.2 and thus their axes of rotation to the axis of rotation 16 Spreading drum 10 is set by a predetermined angle and / or changed. In the case shown (Fig. 1) are the axes of rotation of the swash plates 17.1, 17.2 collinear to the axis of rotation 16 of the expanding drum 10, so that with the expansion drum 10 no spread of the supplied Cigarettes 15 is carried out. This is a Special case in the application of the expanding drum 10, because the stroke has a length of zero. With this setting the Drum 10 becomes drum 10 as a normal conveyor drum used without spreading or moving the cigarettes.

To set a predetermined angle between the Axis of rotation of the expanding drum 10 and the axes of rotation of the Swash plates 17.1, 17.2 are adjustment means inside the expansion drum 10 is formed. The swash plate 17.1 is via a spindle 22.1 with a setting motor 23 connected. The swash plate 17.2 is by means of a Spindle 22.2 also with a setting motor 23 connected. By turning the spindle 22.1, 22.2, the one have opposite slope, the slope of the Swash plates 17.1, 17.2 set.

Around the swash plates 17.1, 17.2 along the control ring 14 or the axis of rotation 16 of the expanding drum 10, it is necessary that at least three Set the swash plates 17.1, 17.2 adjusting means available. These three digits can be even, for example about the circumference of the swash plates 17.1, 17.2 be provided. Through this type of "three-point suspension" can have a linear, longitudinal axial movement of the swash plates 17.1, 17.2 along the axis of rotation 16 and the Control ring 14 take place.

To drive the swash plates 17.1, 17.2 or Drum 10 is also formed inside a brake 24, on an engaging gear the control ring 14 a quick stop of the rotation the spreading drum 10 causes.

It is self-evident for the expert that over corresponding suction air ducts or openings Cigarettes are held in or on the receptacles 13.

2 is a cross-sectional view of an expanding drum 10 shown in sections. In this cross-sectional view is in particular a cut through the Shown setting motor 23, which in cooperation with the driven spindles 22.1, 22.2, which in the Engage swash plates 17.1, 17.2 and fasten them there are, causes the axes of rotation of the swash plates 17.1, 17.2 inclined to the axis of rotation 16 of the expansion drum 10 be formed. With this setting, the Swash plates 17.1, 17.2 around the spherical ball bushings 18.1, 18.2 rotated. Here the move shown upper recordings 13 on the expansion drum 10 towards each other, so that a minimal longitudinal axial Distance between the cigarettes 15 on the recordings 13 is achieved. This minimum axial distance between the cigarettes 15 corresponds to the distance of the Cigarettes, e.g. on the feed drum at the Delivery of the cigarettes from the feed drum to the Have spreading drum 10.

As a result of the rotation of the expansion drum 10 cigarettes arranged parallel to each other longitudinally axially moved apart and in a transfer point to one delivered another drum. Through the adjustable Swashplate inclination to the horizontal axis of rotation 16 the reversal points or the end positions of the axial stroke of the cigarettes on the expanding drum 10 set. Overall, this results in one fast format-flexible and format-dependent adjustment the spreading drum 10 to the production process of Cigarettes or filters. As shown in Fig. 2, the swash plates 17.1, 17.2 are mirror-symmetrical arranged to each other since by means of the adjusting motor 23 both spindles simultaneously and symmetrically to each other be rotated.

In Fig. 3 another alternative in cross section Design of a spreading drum 10 shown.

While the left swashplate 17.1 is set that the recording connected to it does not carry out a stroke, the right swashplate 17.2 is set so that the cigarette 15 moved by this swash plate 17.2 undergoes a longitudinal axial displacement, so that in the transfer point the cigarettes 15 are axially spaced. to Setting the swash plates 17.2 is a crank 25 attached to the spindle 22.2, so that the inclination and Position of the swash plate 17.2 is adjusted exactly. The manual adjustability of the swash plate 17.2 provides an alternative to the motor adjustment of a Swashplate. Of course, both can Measures can be combined.

The lifting means according to the invention with an adjustable Stroke and definable (longitudinal axial) stroke positions at A conveyor drum cannot only be used with an expanding drum (Fig. 1 to 3), but also with a sliding drum be used because on a sliding drum the articles to be moved also have a longitudinal axis Experiencing shift towards each other.

4 is a cross section through a sliding drum 20 shown. Functionally identical elements of those in FIG. 1 Spreading drum 10 shown are in Fig. 4 with provided with the same reference numbers. To accommodate Articles such as Cigarettes 15 are in the sliding drum 20 slides 26.1, 26.2 provided on the outer circumference of the sliding drum 20 is longitudinally displaceable are arranged. The slides 26.1, 26.2 have Recordings for the supplied article 15.

To the inclination of the swash plates 17.1, 17.2 individually and adjust and change independently of each other, so that the sled 26.1., 26.2 different Stroke reversal points and strokes are the spindles 22.1, 22.2 each an independent adjusting motor 28.1 or 28.2 assigned. According to the funding Item formats can be found here via a corresponding Control or regulation of the longitudinal axial displacement of the Carriage 26.1, 26.2 on the control ring 14 independently be adapted from each other. Because of the vertical There is no arrangement of the swash plates 17.1, 17.2 Push the slides 26.1, 26.2 together on the Sliding drum 20. This is also a special case in the use of the sliding drum, since the strokes each have zero length.

5 shows a further expansion drum 20 in cross section shown, in which the carriage 26.1, 26.2 are pushed together, i.e. the least longitudinal axial Distance from each other. Here are the swash plates 17.1, 17.2 due to the stroke adjustment by means of Setting motors 28.1, 28.2 transverse to the control ring 14 or arranged to the axis of rotation 16 of the sliding drum 20. In in these cases, the axis of rotation of the swash plates is 17.1 or 17.2 by a certain angle to the axis of rotation 16 of the Sliding drum 20 formed inclined.

In Fig. 6 is the pushing together of Cigarettes 15 shown in parallel in two rows and shifted axially or offset from one another are arranged. On a feed drum 30, the Cigarettes 15 next to each other and along the conveyor line FS transported. Then the cigarettes 15 from the feed drum 30 to the push drum 20 passed, the delivery of the cigarettes 15 to the trained with three shots for the article 15 Carriage 26.1, 26.2 are handed over.

The carriages 26.1, 26.2 are then longitudinally axial moved towards each other so that the parallel and offset rows of cigarettes arranged in a row be pushed. The slides 26.1, 26.2 point finger-like recordings for the cigarettes 15 that when pushing together the slides 26.1, 26.2 or Intertwine rows of cigarettes. Then will the pushed-together row of cigarettes to a laxative Hand over drum. After handing over the row of cigarettes the slides 26.1, 26.2 are away from each other emotional.

LIST OF REFERENCE NUMBERS

10

spreading drum

11

control flange

12.1

drum lid

12.2

drum lid

13

Recordings

14

control ring

15

cigarettes

16

axis of rotation

17.1

swash plate

17.2

swash plate

18.1

ball socket

18.2

ball socket

19.1

ball joint

19.1

ball joint

20

pushing drum

21.1

socket head

21.2

socket head

22.1

spindle

22.2

spindle

23

adjustment motor

24

brake

25

crank

26.1

carriage

26.2

carriage

28.1

adjustment motor

28.2

adjustment motor

30

feed drum

FS

conveyor line

Claims (16)

Conveyor drum (10, 20) for articles of the tobacco processing industry (15) with a lifting means (17.1, 17.2) for changing the longitudinal axial distance of articles (15) aligned longitudinally axially with respect to one another and in at least one row transversely axially of the conveying drum (10, 20) a predetermined longitudinal axial stroke, characterized in that the stroke of the lifting means (17.1, 17.2) is adjustable. Conveyor drum (10, 20) according to claim 2, characterized in that a lifting means (17.1, 17.2) is provided for each row of articles (15) supplied. Conveyor drum (10, 20) according to claim 1 or 2, characterized in that the lifting means (17.1, 17.2) is formed by means of at least one swash plate (17.1, 17.2). Conveyor drum (10, 20) according to claim 3, characterized in that the swash plate (17.1, 17.2) is displaceable. Conveyor drum (10, 20) according to claim 4, characterized in that the swash plate (17.1, 17.2) can be displaced axially parallel to the articles (15). Conveyor drum (10, 20) according to one or more of claims 3 to 6, characterized in that the angle between the axis of rotation (16) of the swash plate and the axis of rotation of the conveyor drum (10, 20) is variable. Conveyor drum (10, 20) according to claim 6, characterized in that for each swash plate (17.1, 17.2) the angle between the axis of rotation of the swash plate and the axis of rotation (16) of the conveyor drum (10, 20) can be changed. Conveyor drum (10, 20) according to one or more of claims 3 to 7, characterized in that a drive (24) is provided for at least one swash plate (17.1, 17.2). Conveyor drum (10, 20) according to one or more of claims 3 to 8, characterized in that at least one setting means (23, 25, 28.1, 28.2) is provided for the swash plate (17.1, 17.2). Conveyor drum (10, 20) according to one or more of claims 1 to 9, characterized in that receptacles (13) which can be moved along the longitudinal axis are provided for the articles (15). Conveyor drum (10, 20) according to one or more of claims 1 to 10, characterized in that at least two receptacles (13) for articles (15) are arranged on a movable carriage (26.1, 26.2). Conveyor drum (10, 20) according to claim 10 or 11, characterized in that the receptacles (13) or the slide (26.1, 26.2) are connected to a swash plate (17.1, 17.2). Conveyor drum (10, 20) according to one of Claims 10 to 12, characterized in that the receptacles (13) or the slide (26.1, 26.2) are connected to the swash plate '(17.1, 17.2) by means of a ball joint (19.1, 19.2) , Conveying drum (10, 20) according to one or more of claims 1 to 13, characterized in that the conveying drum (10, 20) is designed as an expanding drum (10). Conveying drum (10, 20) according to one or more of claims 1 to 13, characterized in that the conveying drum (10, 20) is designed as a sliding drum (20). Machine of the tobacco processing industry with at least one conveyor drum (10, 20) after one or several of claims 1 to 15.

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